Patent Publication Number: US-11375819-B2

Title: Chair device, propping device, and mattress device

Description:
CROSS-REFERENCE TO RELATED PATENT APPLICATION 
     This application claims the benefit of priority to the U.S. Provisional Patent Application Ser. No. 62/939,716 filed on Nov. 25, 2019, and to China Patent Application Nos. 202010790363.5 and 202010790468.0, commonly filed on Aug. 7, 2020, in People&#39;s Republic of China. The entire content of each of the above identified applications is incorporated herein by reference. 
     Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference. 
    
    
     FIELD OF THE DISCLOSURE 
     The present disclosure relates to a chair device, a mattress device, and a propping device, and more particularly, to a chair device, a mattress device, and a propping device that provide a comfortable experience. 
     BACKGROUND OF THE DISCLOSURE 
     For most people, chairs and mattresses are often sat or lain down upon during work. Even when resting at home, the sofa or the mattress is the first place that people turn to. Thus, apart from aesthetic considerations, the comfort level of the chair or the mattress is of major concern. 
     Therefore, providing a chair device or mattress device with a high level of comfort has become an important subject in the relevant field. 
     SUMMARY OF THE DISCLOSURE 
     In response to the above-referenced technical inadequacies, the present disclosure provides a chair device, a propping device, and a mattress device. The chair includes a support stand, a seat module, a connection module, a back support module, a first pressure adjustment module, a second pressure adjustment module, a first pressure sensing module, a second pressure sensing module, and a control module. The seat module is disposed above the support stand. The connection module is disposed at one side of the seat module. The back support module is connected to the connection module and disposed at one side of the seat module. The first pressure adjustment module is disposed in the seat module. The second pressure adjustment module is disposed in the back support module. The first pressure sensing module is disposed in the seat module. The second pressure sensing module is disposed in the back support module. The control module is electrically connected to the first pressure adjustment module, the second pressure adjustment module, the first pressure sensing module, and the second pressure sensing module. The control module adjusts the first pressure adjustment module according to a plurality of first sensed pressure signals from the first pressure sensing module, and adjusts the second pressure adjustment module according to a plurality of second sensed pressure signals from the second pressure sensing module. 
     In another aspect, the present disclosure provides a chair device. The chair device includes a support stand, a seat module, a connection module, a back support module, a first propping structure, and a second propping structure. The seat module is disposed above the support stand. The connection module is disposed at one side of the seat module. The back support module is connected to the connection module, and the back support module is disposed at one side of the seat module. The first propping structure includes a plurality of first propping modules, and the first propping structure is disposed in the seat module. Each of the first propping modules includes a first propping end and a second propping end. The first propping end of any one of the first propping modules is connected to the first propping end or the second propping end of another one of the first propping modules. The plurality of first propping modules in the first propping structure are mutually connected to form a mesh structure. The second propping structure includes a plurality of second propping modules, and the second propping structure is disposed in the back support module. Each of the second propping modules includes a first propping end and a second propping end. The first propping end of any one of the second propping module is connected to a first propping end or a second propping end of another one of the second propping module. The plurality of second propping modules in the second propping structure are mutually connected to form a mesh structure. 
     In yet another aspect, the present disclosure provides a propping device. The propping device includes a frame, a control module, and a plurality of propping modules. The plurality of propping modules are electrically connected to the control module. Each of the propping modules includes a first propping end and a second propping end. The first propping end of each propping module is connected to a first propping end or a second propping end of another propping module. The plurality of propping modules is mutually connected to form a mesh structure. The control module controls and adjusts a length of each of the propping modules. 
     In yet another aspect, the present disclosure provides a mattress device. The mattress device includes a mattress module, a control module, a pressure adjustment module, and a pressure sensing module. The pressure adjustment module includes a plurality of pressure adjustment units, and the pressure adjustment module is electrically connected to the control module. The pressure sensing module includes a plurality of pressure sensing units. Each of the pressure sensing units is disposed at one side of the corresponding pressure adjustment unit, and is electrically connected to the control module. A plurality of sensed pressure signals from the plurality of pressure sensing units of the pressure sensing module is transmitted to the control module. The control module adjusts each of the pressure adjustment units in the pressure adjustment module individually according to the plurality of sensed pressure signals from the plurality of pressure sensing units. 
     One of the advantageous effects of the present disclosure lies in that, the chair device of the present disclosure is provided with a first pressure adjustment module and a second pressure adjustment module that can be adjusted independently in real time, thus improving user experience. In addition, the chair device of the present disclosure can offer different adjustment manners according to different use statuses of the seat module and the back support module, so as to adjust the first pressure adjustment module and the second pressure adjustment module. Moreover, the first pressure adjustment module and the second pressure adjustment module of the present disclosure are densely arranged to provide a wrapping experience for the user. 
     These and other aspects of the present disclosure will become apparent from the following description of the embodiment taken in conjunction with the following drawings and their captions, although variations and modifications therein may be affected without departing from the spirit and scope of the novel concepts of the disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present disclosure will become more fully understood from the following detailed description and accompanying drawings. 
         FIG. 1  is a schematic view of a chair device in an embodiment of the present disclosure. 
         FIG. 2  is a function block diagram of the chair device in an embodiment of the present disclosure. 
         FIG. 3  is a schematic view showing that a first pressure adjustment module is disposed in a seat module according to the present disclosure. 
         FIG. 4  is a schematic view showing that a second pressure adjustment module is disposed in a back support module according to the present disclosure. 
         FIG. 5  is a schematic view showing that an included angle between the seat module and the back support module of the chair device is less than a predetermined angle according to the present disclosure. 
         FIG. 6  is a schematic view showing that an included angle between the seat module and the back support module of the chair device is greater than a predetermined angle according to the present disclosure. 
         FIG. 7  is a schematic view of the first pressure adjustment module according to the present disclosure. 
         FIG. 8  is a schematic view of the second pressure adjustment module according to the present disclosure. 
         FIG. 9  is another schematic view of the first pressure adjustment module according to the present disclosure. 
         FIG. 10  is another schematic view of the second pressure adjustment module according to the present disclosure. 
         FIG. 11  is still another schematic view of the first pressure adjustment module according to the present disclosure. 
         FIG. 12  is a schematic view of first spherical objects and second spherical objects in the first pressure adjustment module taken along a section line XII-XII in  FIG. 11 . 
         FIG. 13  is a schematic view showing the chair device being mounted in a movable carrier according to the present disclosure. 
         FIG. 14  is another schematic view of a chair device in a second embodiment of the present disclosure. 
         FIG. 15  is still another schematic view of the chair device in the second embodiment of the present disclosure. 
         FIG. 16  is a schematic view showing respective edge regions of a seat module and a back support module being higher than respective central regions in the second embodiment of the present disclosure. 
         FIG. 17  is a schematic view of a chair device in a third embodiment of the present disclosure. 
         FIG. 18A  is an enlarged schematic view of a region XVIIIA in  FIG. 17 . 
         FIG. 18B  is an enlarged schematic view of a region XVIIIB in  FIG. 17 . 
         FIG. 19  is a schematic view showing a first propping structure of  FIG. 17  in a flat state. 
         FIG. 20  is a schematic view showing that the first propping structure of  FIG. 17  is bent at two sides. 
         FIG. 21  is a schematic view showing the first propping structure of  FIG. 17  being bent at one side. 
         FIG. 22  is another schematic view showing the first propping structure of the seat module in  FIG. 17 . 
         FIG. 23  is a schematic view of a chair device in a fourth embodiment of the present disclosure. 
         FIG. 24  is another schematic view of the chair device in  FIG. 23 . 
         FIG. 25  is a schematic view of a mattress device in a fourth embodiment of the present disclosure. 
         FIG. 26  is a schematic view of a mattress device in an embodiment of the present disclosure. 
         FIG. 27  is a schematic view showing that a pressure adjustment module is disposed in the mattress device in an embodiment of the present disclosure. 
         FIG. 28  is a block diagram of the mattress device in an embodiment of the present disclosure. 
         FIG. 29  is a schematic view of a pressure adjustment module in an embodiment of the present disclosure. 
         FIG. 30  is another schematic view of the pressure adjustment module in an embodiment of the present disclosure. 
         FIG. 31  is still another schematic view of the pressure adjustment module in an embodiment of the present disclosure. 
         FIG. 32  is a schematic view showing first spherical objects and second spherical objects configured in the pressure adjustment module of  FIG. 6 . 
         FIG. 33  is a schematic view showing a first bed body raising module and a second bed body raising module being disposed below a mattress module in an embodiment of the present disclosure. 
         FIG. 34  is a schematic view showing the first bed body raising module and the second bed body raising module being used to adjust the height of a bed body in an embodiment of the present disclosure. 
         FIG. 35  is a schematic view showing a mattress device having an edge pressure adjustment module disposed in an edge region thereof in the second embodiment of the present disclosure. 
         FIG. 36  is a schematic view showing the edge region of the mattress device being higher than a central region in the second embodiment of the present disclosure. 
         FIG. 37  is another schematic view showing the mattress device having the edge pressure adjustment module disposed in the edge region thereof in the second embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS 
     The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Like numbers in the drawings indicate like components throughout the views. As used in the description herein and throughout the claims that follow, unless the context clearly dictates otherwise, the meaning of “a”, “an”, and “the” includes plural reference, and the meaning of “in” includes “in” and “on”. Titles or subtitles can be used herein for the convenience of a reader, which shall have no influence on the scope of the present disclosure. 
     The terms used herein generally have their ordinary meanings in the art. In the case of conflict, the present document, including any definitions given herein, will prevail. The same thing can be expressed in more than one way. Alternative language and synonyms can be used for any term(s) discussed herein, and no special significance is to be placed upon whether a term is elaborated or discussed herein. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given herein. Numbering terms such as “first”, “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like. 
     In addition, the accompanying drawings of the present disclosure are provided merely for illustrative purposes, and are not illustrated based on actual scales. According to the actual situation, the term “or” as used herein shall include any one or multiple combinations of the associated listed items. 
     First Embodiment 
     Referring to  FIGS. 1, 2, 3, 4, 5, and 6 ,  FIG. 1  is a schematic view of a chair device in an embodiment of the present disclosure.  FIG. 2  is a function block diagram of the chair device in an embodiment of the present disclosure.  FIG. 3  is a schematic view showing that a first pressure adjustment module is disposed in a seat module according to the present disclosure.  FIG. 4  is a schematic view showing that a second pressure adjustment module is disposed in a back support module according to the present disclosure.  FIG. 5  is a schematic view showing that an included angle between the seat module and the back support module of the chair device is less than a predetermined angle according to the present disclosure.  FIG. 6  is a schematic view showing that an included angle between the seat module and the back support module of the chair device is greater than a predetermined angle according to the present disclosure. 
     The chair device  1  includes a support stand  10 , a seat module  11 , a connection module  12 , a back support module  13 , a first pressure adjustment module  14 , a second pressure adjustment module  15 , a first pressure sensing module  16 , a second pressure sensing module  17 , a control module  18 , a power module  19 , a sensor module  20 , a comfort level analysis module  21 , a communication module  22 , a storage module  23 , and a time measurement module  24 . 
     The control module  18  is electrically connected to the first pressure adjustment module  14 , the second pressure adjustment module  15 , the first pressure sensing module  16 , the second pressure sensing module  17 , the power module  19 , the sensor module  20 , the comfort level analysis module  21 , the communication module  22 , the storage module  23 , and the time measurement module  24 . The control module  18  is a central processing unit (CPU), an application-specific integrated circuit (ASIC), or a microprocessor control unit (MCU). 
     Referring to  FIGS. 5 and 6 , the support stand  10  includes a plurality of support columns which are in contact with the ground, and the seat module  11  is disposed above the support stand  10 . The connection module  12  is disposed between the seat module  11  and the back support module  13 . That is, the back support module  13  is disposed at one side of the seat module  11  via the connection module  12 . An included angle θ ranging from 90° to 180° is formed between the seat module  11  and the back support module  13 . 
     The connection module  12  includes a hinge unit  121  and an angular sensor  122 . The hinge unit  121  is disposed between the seat module  11  and the back support module  13 , and the angular sensor  122  is disposed on one side of the hinge unit  121  to detect the included angle θ between the seat module  11  and the back support module  13 . The angular sensor  122  is electrically connected to the control module  18 . 
     Referring to  FIGS. 3 and 4 , in this embodiment, the first pressure adjustment module  14  and the first pressure sensing module  16  are disposed in the seat module  11 . The second pressure adjustment module  15  and the second pressure sensing module  17  are disposed in the back support module  13 . The seat module  11  includes a comfortable seat material layer  110 A and a seat propping material layer  110 B, and the back support module  13  includes a comfortable back-support material layer  130 A and a back support propping material layer  130 B. The first pressure adjustment module  14  and the first pressure sensing module  16  are disposed between the comfortable seat material layer  110 A and the seat propping material layer  110 B, and the second pressure adjustment module  15  and the second pressure sensing module  17  are disposed between the comfortable back-support material layer  130 A and the back support propping material layer  130 B. The comfortable seat material layer  110 A and the comfortable back-support material layer  130 A may be made from fabric or foam, and the seat propping material layer  110 B and the back support propping material layer  130 B may be made from wood, plastic, or metal. 
     In this embodiment, the control module  18  adjusts the first pressure adjustment module  14  according to a plurality of first sensed pressure signals from the first pressure sensing module  16 , and adjusts the second pressure adjustment module  15  according to a plurality of second sensed pressure signals from the second pressure sensing module  17 . That is, when an included angle between the seat module  11  and the back support module  13  of the chair device  1  is less than a predetermined angle, the control module  18  adjusts the first pressure adjustment module  14  in the seat module  11  and the second pressure adjustment module  15  in the back support module  13  separately. The control module  18  may adjust only the first pressure adjustment module  14  in the seat module  11 . Especially, when a user leans forward, his/her weight is applied only on the seat module  11 , and the user does not lean against or just lightly leans against the back support module  13 . In this case, the control module  18  mainly adjusts the first pressure adjustment module  25  in the seat module  11 , so as to improve the user experience. The predetermined angle may be 100° or 110°, and set by the user personally. In this embodiment, the connection module  12  may be adjusted in terms of angle by using a gear adjustment assembly, an air pressure adjustment assembly, or a hydraulic adjustment assembly via first pressure adjustment units  141  of the first pressure adjustment module  14  that are close to the connection module  12  or second pressure adjustment units  151  of the second pressure adjustment module  15  that are close to the connection module  12 . That is, the angle between the seat module  11  and the back support module  13  may be adjusted via the first pressure adjustment module  14  and the second pressure adjustment module  15 . 
     Referring to  FIGS. 7, 8, 9, 10, 11, and 12 ,  FIG. 7  is a schematic view of the first pressure adjustment module according to the present disclosure.  FIG. 8  is a schematic view of the second pressure adjustment module according to the present disclosure.  FIG. 9  is another schematic view of the first pressure adjustment module according to the present disclosure.  FIG. 10  is another schematic view of the second pressure adjustment module according to the present disclosure.  FIG. 11  is still another schematic view of the first pressure adjustment module according to the present disclosure.  FIG. 12  is a schematic view of first spherical objects and second spherical objects in the first pressure adjustment module presented along a section line XII-XII in  FIG. 11 . 
     The first pressure adjustment module  14  includes the plurality of first pressure adjustment units  141 , and the second pressure adjustment module  15  includes the plurality of second pressure adjustment units  151 . The first pressure sensing module  16  includes a plurality of first pressure sensing units  161 , and the second pressure sensing module  17  includes a plurality of second pressure sensing units  171 . 
     The control module  18  can adjust the plurality of first pressure adjustment units  141  of the first pressure adjustment module  14  according to a plurality of first sensed pressure signals from the plurality of first pressure sensing units  161  of the first pressure sensing module  16 , and can also adjust the plurality of second pressure adjustment units  151  of the second pressure adjustment module  15  according to a plurality of second sensed pressure signals from the plurality of second pressure sensing units  171  of the second pressure sensing module  17 . 
     Likewise, when the included angle between the seat module  11  and the back support module  13  of the chair device  1  is less than a predetermined angle, the control module  18  adjusts the plurality of first pressure adjustment units  141  of the first pressure adjustment module  14  in the seat module  11  and the plurality of second pressure adjustment units  151  of the second pressure adjustment module  15  in the back support module  13  separately. In this case, the control module  18  mainly adjusts the plurality of first pressure adjustment units  141  of the first pressure adjustment module  14  in the seat module  11 , so as to improve user experience. 
     Moreover, a time measurement module  24  of the chair device  1  is a timer, and is electrically connected to the control module  18 . After receiving the plurality of first sensed pressure signals from the first pressure sensing module  16  and the plurality of second sensed pressure signals from the second pressure sensing module  17  for a predetermined period of time, the control module  18  provides a plurality of pressure adjustment signals to the plurality of first pressure adjustment units  141  of the first pressure adjustment module  14  and the plurality of second pressure adjustment units  151  of the second pressure adjustment module  15 , so as to adjust pressure values provided by the plurality of first pressure adjustment units  141  and the plurality of second pressure adjustment units  151  onto the seat module  11  and the back support module  13 , respectively. The predetermined time may be 5 or 10 minutes, and be set by the user personally. 
     When the included angle θ is greater than the predetermined angle, the control module  18  simultaneously controls the plurality of first pressure adjustment units  141  of the first pressure adjustment module  14  and the plurality of second pressure adjustment units  151  of the second pressure adjustment module  15 . That is, when the included angle θ is greater than the predetermined angle, the control module  18  determines that the chair device  1  is presently in a chair device status, and the user on the chair device  1  at this time should be lying on the chair device  1 . Therefore, the control module  18  simultaneously controls the plurality of first pressure adjustment units  141  of the first pressure adjustment module  14  and the plurality of second pressure adjustment units  151  of the second pressure adjustment module  15 , so that the chair device  1  in this case has a pressure adjustment function and can be adjusted in terms of pressure. In this case, the control module  18  may specifically adjust the pressure of the multiple adjacent first pressure adjustment units  141  and second pressure adjustment units  151  (corresponding to the user&#39;s waist and back), so as to enhance the support for the user&#39;s waist and back and to further improve user experience. 
     Referring to  FIGS. 7 and 8 , in this embodiment, each first pressure adjustment unit  141  includes a micro motor  141 A, a connection unit  141 B, and an elastic unit  141 C. The connection unit  141 B is connected onto the micro motor  141 A, and the elastic unit  141 C is disposed on the connection unit  141 B. In this embodiment, the micro motor  141 A is vertically connected to the elastic unit  141 C, and implements a back-and-forth movement stroke. That is, when the first pressure adjustment unit  141  is vertically disposed, the micro motor  141 A can be vertically adjusted to different heights. 
     Similarly, each second pressure adjustment unit  151  includes a micro motor  151 A, a connection unit  151 B, and an elastic unit  151 C. The connection unit  151 B is connected onto the micro motor  151 A, and the elastic unit  151 C is disposed on the connection unit  151 B. In this embodiment, the micro motor  151 A is vertically connected to the elastic unit  151 C, and implements a back-and-forth movement stroke. That is, when the second pressure adjustment unit  151  is vertically disposed, the micro motor  151 A can be vertically adjusted to different heights. 
     Referring to  FIGS. 9 and 10 , in this embodiment, each first pressure adjustment unit  141 ′ includes a micro motor  141 A′, a connection unit  141 B′, and an elastic unit  141 C′. The connection unit  141 B′ is connected onto the micro motor  141 A′, and the elastic unit  141 C′ is disposed on the connection unit  141 B′. In this embodiment, the micro motor  141 A′ is horizontally linked to the elastic unit  141 C′, and a central axis of the micro motor  141 A′ is connected to the connection unit  141 B′. These micro motors  141 A′ are small in size and are densely arranged, and can therefore provide a better lying experience. Especially, since the micro motors  141 A and  141 A′ in the present disclosure are densely arranged and capable of being adjusted in real time, the micro motors  141 A and  141 A′ can provide a user who lies down to have a wrapping feeling and a comfortable lying experience. 
     In this embodiment, each second pressure adjustment unit  151 ′ includes a micro motor  151 A′, a connection unit  151 B′, and an elastic unit  151 C′. The connection unit  151 B′ is connected onto the micro motor  151 A′, and the elastic unit  151 C′ is disposed on the connection unit  151 B′. In this embodiment, the micro motor  151 A′ is horizontally linked to the elastic unit  151 C′, and a central axis of the micro motor  151 A′ is connected to the connection unit  151 B′. These micro motors  151 A′ are small in size and are densely arranged, and can therefore provide a better lying experience. Especially, since the micro motors  151 A and  151 A′ in the present disclosure are densely arranged and capable of being adjusted in real time, the micro motors  151 A and  151 A′ can provide a user who lies down to have a wrapping feeling and a comfortable lying experience. 
     In this embodiment, the elastic units  141 C,  151 C,  141 C′ and  151 C′ may be made from rubber or foam, the connection units  141 B and  151 B are metal sleeves, and the connection units  141 B′ and  151 B′ separately include an eccentric wheel and a linked metal arm. 
     Referring to  FIG. 11 , in this embodiment, the first pressure adjustment module  14 ″ includes a plurality of airbag units  14 A and a pump (not shown in the figure). The plurality of airbag units  14 A are connected to the pump, and the pump (not shown in the figure) is used to inflate or deflate the airbag units  14 A separately, so as to implement pressure adjustment. Similar to the arrangement in the foregoing embodiment, the comfortable seat material layer  110 A is also disposed on the plurality of airbag units  14 A of the first pressure adjustment module  14 ″. Similarly, each airbag unit  14 A may be inflated or deflated individually, so as to implement pressure adjustment. These airbag units  14 A are each designed into a small-sized airbag, and are densely arranged, thus providing a better lying experience. 
     In this embodiment, a second pressure adjustment module  15 ″ includes a plurality of airbag units  15 A and a pump (not shown in the figure). The plurality of airbag units  15 A are connected to the pump, and the pump (not shown in the figure) is used to inflate or deflate the airbag units  15 A separately, so as to implement pressure adjustment. Similar to the arrangement in the foregoing embodiment, the comfortable back-support material layer  130 A is also disposed on the plurality of airbag units  15 A of the second pressure adjustment module  15 ″. Similarly, each airbag unit  15 A may be inflated or deflated individually, so as to implement pressure adjustment. These airbag units  15 A are each designed into a small-sized airbag, and are densely arranged, thus providing a better lying experience. 
     Referring to  FIG. 12 , description is made below by using the first pressure adjustment module  14 ″ as an example. The status of the second pressure adjustment module  15 ″ is similar to that of the first pressure adjustment module  14 ″, and will not be reiterated herein.  FIG. 12  is a schematic view showing that a plurality of spherical objects is disposed on the plurality of airbag units  14 A of the pressure adjustment module  14 ″. 
     This embodiment involves two types of spherical objects, one of which being a big first spherical object  14 A 1  and the other one being a small second spherical object  14 A 2 . The big first spherical objects  14 A 1  are disposed in gaps between the airbag units  14 A, and the small second spherical objects  14 A 2  are disposed on the surfaces of the airbag units  14 A. The first spherical objects  14 A 1  and the second spherical objects  14 A 2  are both connected in series via a steel wire or plastic wire, so that the first spherical objects  14 A 1  and the second spherical objects  14 A 2  can be disposed on the pressure adjustment module  14 ″. The first spherical objects  14 A 1  and the second spherical objects  14 A 2  are steel beads, ceramic beads, plastic beads, or the like, and are in contact with the comfortable seat material layer  110 A in a point contact mode. 
     As shown in  FIG. 12 , the first spherical objects  14 A 1  and the second spherical objects  14 A 2  in this embodiment are both arranged in a matrix, and may be arranged in the shape of a triangle, quadrangle, hexagon, or polygon in other embodiments. 
     In this embodiment, the sensor module  20  is mainly used to detect first environmental parameters of the seat module  11  or second environmental parameters of the seat module  11  and the back support module  13 . 
     When the included angle θ between the seat module  11  and the back support module  13  is less than the predetermined angle, the sensor module  20  detects the first environmental parameters of the seat module  11 . 
     When the included angle θ between the seat module  11  and the back support module  13  is greater than the predetermined angle, the sensor module  20  detects the second environmental parameters of the seat module  11  and the back support module  13 . 
     The sensor module  20  includes at least a gyro sensor or a vibration sensor. Mattress environmental parameters include at least a vibration status of a mattress module  10 . 
     In addition, the sensor module  20  further includes a temperature sensor or a humidity sensor used to detect the temperature or humidity of the surface of the mattress module. 
     The sensor module  20  may further include an image sensor, an infrared sensor, a laser ranging sensor, an optical sensor, an olfactory gas sensor, or a weight sensor. 
     The comfort level analysis module  21  receives the first environmental parameters, the second environmental parameters, the plurality of first sensed pressure signals, and the plurality of second sensed pressure signals from the sensor module  20 , so as to determine a comfort level parameter when a user sits in the chair device  1 . In this embodiment, the comfort level analysis module  21  uses software for analysis, and may also use hardware or firmware in other embodiments. 
     In other embodiments, the chair device  1  may also use an optical sensor (not shown in the figure) of the sensor module  20  to detect the comfort level parameter of the user. When the user sits comfortably, his/her body movements are more stable, and there will be fewer movements. Therefore, based on such a feature, the designer may use the vibration sensor, gyro sensor, or optical sensor to detect whether there is constant movement of the user&#39;s body when being in the chair device  1 , so as to further determine the comfort level parameter when the user sits in the chair device  1 . 
     That is, when the included angle θ between the seat module  11  and the back support module  13  is less than a predetermined angle, the plurality of first pressure sensing units  161  of the first pressure sensing module  16  in the seat module  11  detect a pressure value which is applied by the user on the comfortable seat material layer  110 A of the seat module  11 , and transmit sensed pressure signals obtained after detection to the control module  18 . The control module  18  then transmits these first sensed pressure signals to the comfort level analysis module  21 . In addition, the first environmental parameters detected by the sensor module  20  are also transmitted to the comfort level analysis module  21  for analysis. 
     The comfort level analysis module  21  first makes analysis according to the first environmental parameters. When a vibration status in the first environmental parameters is greater than a first vibration default value, it is determined that the comfort level is low. Further, the comfort level analysis module  21  analyzes the plurality of first sensed pressure signals, and searches for a region that has a high pressure value. When a maximum pressure value of a region is greater than N times of a surrounding pressure value, the comfort level analysis module  21  provides a low-comfort pressure adjustment signal to the control module  18 , so that the control module  18  adjusts corresponding pressure adjustment units  121  of the pressure adjustment module  12  to reduce a pressure difference value of a region that has a large pressure difference. N is greater than or equal to 1, and is a rational number. That is, the control module  18  adjusts the region that has a large pressure difference in the sensed pressure signals according to the low-comfort pressure adjustment signal. Afterwards, the comfort level analysis module may continuously monitor a lying status of the user according to the mattress environmental parameters. 
     That is, when the included angle θ between the seat module  11  and the back support module  13  is greater than the predetermined angle, the user should be in the chair device  1  in a lying down position in this case. The plurality of first pressure sensing units  161  of the first pressure sensing module  16  in the seat module  11  detects a pressure value which is applied by the user on the comfortable back-support material layer  110 A of the back support module  13 , and transmits sensed pressure signals obtained after detection to the control module  18 . The plurality of second pressure sensing units  171  of the second pressure sensing module  17  in the back support module  13  detects a pressure value which is applied by the user on the comfortable back-support material layer  130 A of the back support module  13 , and transmits second sensed pressure signals obtained after detection to the control module  18 . 
     The control module  18  transmits these first sensed pressure signals and second sensed pressure signals to the comfort level analysis module  21 . In addition, the second environmental parameters detected by the sensor module  20  are also transmitted to the comfort level analysis module  21  for analysis. 
     The comfort level analysis module  21  first makes analysis according to the first environmental parameters. When a vibration status in the first environmental parameters is greater than a first vibration default value, it is determined that the comfort level is low. Further, the comfort level analysis module  21  analyzes the plurality of first sensed pressure signals, and searches for a region that has a high pressure value. When a maximum pressure value of a region is greater than N times of a surrounding pressure value, the comfort level analysis module  21  provides a low-comfort pressure adjustment signal to the control module  18 , so that the control module  18  adjusts corresponding pressure adjustment units  121  of the pressure adjustment module  12  to reduce a pressure difference value of a region that has a large pressure difference. N is greater than or equal to 1 and is a rational number. That is, the control module  18  adjusts the region that has a large pressure difference in the sensed pressure signals according to the low-comfort pressure adjustment signal. Afterwards, the comfort level analysis module may continuously monitor a lying status of the user according to the mattress environmental parameters. 
     The chair device  1  may be communicatively connected to a server  9  or a mobile device  8  via a communication module  22 . The user may be communicatively connected to the communication module  22  in the chair device  1  via an application program (APP) in the mobile device  9 , so as to send a pressure adjustment signal for pressure adjustment. 
     In this embodiment, the communication module  22  includes a wired communication unit (not shown in the figure) and a wireless communication unit (not shown in the figure). The wired communication unit (not shown in the figure) may also be independently disposed so as to establish a communicative connection with the server  9 , and to receive a control signal from the server  9  or data in a database (not shown in the figure). 
     The wireless communication unit (not shown in the figure) may be a WI-FI® communication unit, a BLUETOOTH® communication unit, a ZIGBEE® communication unit, a LoRa communication unit, a Sigfox communication unit, or an NB-IoT communication unit. 
     The storage module  23  is used to store various parameters of the chair device  1 . The storage module  23  is a flash memory, a read-only memory, a programmable read-only memory, an electrically rewritable read-only memory, an erasable programmable read-only memory, or an electrically-erasable programmable read-only memory. 
     Referring to  FIG. 13 ,  FIG. 13  is a schematic view showing that the chair device is mounted in a movable carrier according to the present disclosure. 
     When the chair device  1  of the present disclosure is mounted in a movable carrier VH, the first pressure adjustment module  14  in the seat module  11  and the second pressure adjustment module  15  in the back support module  13  of the chair device  1  are continuously on standby. 
     When the movable carrier VH receives an impact, the control module  18  may adjust and control the first pressure adjustment module  14  and the second pressure adjustment module  15  to disperse the impact force. The micro motors in  FIGS. 7 to 10  retract the stroke to the minimum, that is, retract towards the seat propping material layer  110 B and the back support propping material layer  130 B. In this way, the impact force on the user can be dispersed through the plurality of first pressure adjustment units  141  and the plurality of second pressure adjustment units  151 , so as to reduce an impact injury to the user&#39;s body. The movable carrier VH may be a car, a van, a sports car, a truck, a bus, a train, or an airplane. 
     Second Embodiment 
     Referring to  FIGS. 14, 15, and 16 ,  FIG. 14  is another schematic view of a chair device in a second embodiment of the present disclosure.  FIG. 15  is still another schematic view of the chair device in the second embodiment of the present disclosure.  FIG. 16  is a schematic view showing that respective edge regions of a seat module and a back support module are higher than respective central regions in the second embodiment of the present disclosure. 
     Referring to  FIG. 14 , in a chair device  1 ′, a seat module  11 ′ has a first pressure adjustment module  14 ′ and a first pressure sensing module  17 ′ disposed in the central region, and a back support module  13 ′ has a second pressure adjustment module  15 ′ and a second pressure sensing module  17 ′ disposed in the central region. In this embodiment, the first pressure adjustment module  14 ′ and the second pressure adjustment module  15 ′ are arranged to be adjacent. There is no empty region between the first pressure adjustment module  14 ′ and the second pressure adjustment module  15 ′. 
     Referring to  FIG. 15 , moreover, an edge region  11 E of the seat module  11 ′ has a first edge pressure adjustment module EPM 1  disposed therein, and an edge region  13 E of the back support module  13 ′ has a second edge pressure adjustment module EPM 2  disposed therein. The first edge pressure adjustment module EPM 1  and the second edge pressure adjustment module EPM 2  are respectively fitted with a first edge pressure sensing module EPS 1  and a second edge pressure sensing module EPS 2 . 
     The first edge pressure adjustment module EPM 1  includes a plurality of first edge pressure adjustment units PM 1 , and the second edge pressure adjustment module EPM 2  includes a plurality of second edge pressure adjustment units PM 2 . The first edge pressure adjustment units PM 1 , the second edge pressure adjustment units PM 2 , and pressure adjustment units  141  all include a micro motor. 
     Likewise, the first edge pressure sensing module EPS 1  includes a plurality of first edge pressure sensing units PS 1  each disposed at one side of the corresponding first edge pressure adjustment unit PM 1 . 
     The second edge pressure sensing module EPS 2  includes a plurality of second edge pressure sensing units PS 2  each disposed at one side of the corresponding second edge pressure adjustment unit PM 2 . 
     That is, the first edge pressure sensing units PS 1  collocate with the first edge pressure adjustment units PM 1  in a one-to-one correspondence manner, and the second edge pressure sensing units PS 2  also collocate with the second edge pressure adjustment units PM 2  in a one-to-one correspondence manner. 
     In this embodiment, one to three rows of the first edge pressure adjustment units PM 1  may be arranged in the first edge region  11 E, so as to improve the lying comfort. One to three rows of the second edge pressure adjustment units PM 2  may be arranged in the second edge region  15 E, so as to improve the lying comfort. In other embodiments, the numbers of the first edge pressure adjustment units PM 1  and the second edge pressure adjustment units PM 2  may be adjusted according to practical requirement. 
     Each first edge pressure adjustment unit PM 1  includes a first micro motor (not shown in the figure), a first retractable unit (not shown in the figure), and a first elastic unit (not shown in the figure). Each second edge pressure adjustment unit PM 2  includes a second micro motor (not shown in the figure), a second retractable unit (not shown in the figure), and a second elastic unit (not shown in the figure). 
     In each first edge pressure adjustment unit PM 1 , the first retractable unit (not shown in the figure) is connected onto the first micro motor (not shown in the figure), and the first elastic unit (not shown in the figure) is disposed on the first retractable unit (not shown in the figure). The first retractable unit (not shown in the figure) may be adjusted in length by means of a torque change or force output change of the first micro motor (not shown in the figure). In addition, the first edge pressure adjustment units PM 1  in the first edge region  11 E may be designed to extend at different angles, such as a vertical angle, a horizontal angle, or an oblique angle, so that the first edge region  11 E provides a better comfort. 
     Similarly, in each second edge pressure adjustment unit PM 2 , the second retractable unit (not shown in the figure) is connected onto the second micro motor (not shown in the figure), and the second elastic unit (not shown in the figure) is disposed on the second retractable unit (not shown in the figure). The second retractable unit (not shown in the figure) may be adjusted in length by means of a torque change or force output change of the second micro motor (not shown in the figure). In addition, the second edge pressure adjustment units PM 1  in the second edge region  15 E may be designed to extend at different angles, such as a vertical angle, a horizontal angle, or an oblique angle, so that the second edge region  15 E provides a better comfort. 
     Referring to  FIG. 16 , the first retractable units (not shown in the figure) of the first edge pressure adjustment units PM 1  disposed in the first edge region  11 E can be flexibly adjusted in length in a vertical direction, and the first edge region  11 E is higher than the first pressure adjustment module  14  in the central region. 
     The second retractable units (not shown in the figure) of the second edge pressure adjustment units PM 2  disposed in the second edge region  15 E can be flexibly adjusted in length in a vertical direction, and the second edge region  15 E is higher than the second pressure adjustment module  15  in the central region. 
     In other embodiments, the first retractable units (not shown in the figure) of the first edge pressure adjustment units PM 1  disposed in the first edge region  11 E can be flexibly adjusted in length in a horizontal direction, and in this case, the seat module  11 ′ is horizontally larger than the original size. 
     The second retractable units (not shown in the figure) of the second edge pressure adjustment units PM 2  disposed in the second edge region  15 E can be flexibly adjusted in length in a horizontal direction, and in this case, the back support module  13 ′ is horizontally larger than the original size. 
     In addition, if multiple rows of the first edge pressure adjustment units PM 1  and the second edge pressure adjustment units PM 2  are respectively disposed in the first edge region  11 E and the second edge region  13 E, a small arc-shaped fence is formed around the seat module  11  and the back support module  13 , so that the user is provided with a comfortable wrapping feeling. 
     Therefore, when the user sits in the chair device  1 , the control module  18  sends a first edge control signal to the plurality of first edge pressure adjustment units PM 1  of the first edge pressure adjustment module EPM 1 , so as to adjust the softness and comfort of the first edge region  11 E. The control module  18  may also send a second edge control signal to the plurality of second edge pressure adjustment units PM 2  of the second edge pressure adjustment module EPM 2 , so as to adjust the softness and comfort of the second edge region  13 E. 
     In another embodiment, a first frame unit (not shown in the figure) may be disposed above the plurality of first edge pressure adjustment units PM 1 . That is, upon receiving the first edge control signal from the control module  18 , the plurality of first edge pressure adjustment units PM 1  may drive a gear mechanism, pneumatic device, or hydraulic device to adjust the position of the first frame unit (not shown in the figure). In this embodiment, the first frame unit (not shown in the figure) is a retractable connected frame tube and is disposed at one side of the first edge region  11 E. When the first frame unit rises, a desired fencing effect is achieved around the seat module  11 . In addition, the first frame unit (not shown in the figure) may be disposed in the seat module  11  or on the sides of the seat module  11 . 
     A second frame unit (not shown in the figure) may be disposed above the plurality of second edge pressure adjustment units PM 2 . That is, upon receiving the second edge control signal from the control module  18 , the plurality of second edge pressure adjustment units PM 2  may drive a gear mechanism, pneumatic device, or hydraulic device to adjust the position of the second frame unit (not shown in the figure). In this embodiment, the second frame unit (not shown in the figure) is a retractable connected frame tube and is disposed at one side of the second edge region  13 E. When the second frame unit rises, a desired fencing effect is achieved around the back support module  13 . In addition, the second frame unit (not shown in the figure) may be disposed in the back support module  13  or on the sides of the back support module  13 . 
     Third Embodiment 
     Referring to  FIGS. 17, 18A, 18B, 19, 20, 21, and 22 ,  FIG. 17  is a schematic view of a chair device in a third embodiment of the present disclosure.  FIG. 18A  is a schematic enlarged diagram of a region XVIIIA in  FIG. 17 .  FIG. 18B  is a schematic enlarged diagram of a region XVIIIB in  FIG. 17 .  FIG. 19  is a schematic view of a first propping structure in a flat state in  FIG. 17 .  FIG. 20  is a schematic view showing that the first propping structure in  FIG. 17  is bent at two sides.  FIG. 21  is a schematic view showing that the first propping structure in  FIG. 17  is bent at one side.  FIG. 22  is another schematic view of the first propping structure in the seat module in  FIG. 17 . 
     Referring to  FIGS. 17, 18A, and 18B , a chair device  5  in this embodiment includes a support stand  50 , a seat module  51 , a connection module  52 , a back support module  53 , a power module  54 , a control module  55 , a first propping structure  56 , and a second propping structure  57 . 
     The seat module  51  is disposed on the support stand  50 , the connection module  52  is disposed at one side of the seat module  51 , and the back support module  53  is connected to the connection module  52  and disposed at one side of the seat module  51 . 
     The first propping structure  56  includes a plurality of first propping modules  560 , and is disposed in the seat module  51 . Each of the first propping modules  560  includes a first propping end  560 - 1  and a second propping end  560 - 2 . The first propping end  560 - 1  of any one of the first propping module  560  is connected to a first propping end  560 - 2  or a second propping end  560 - 2  of another one of the first propping module  560 . The plurality of first propping modules  560  in the first propping structure  56  are mutually connected to form a mesh structure. 
     The second propping structure  57  includes a plurality of second propping modules  570 , and is disposed in the back support module  53 . Each of the second propping modules  570  includes a first propping end  570 - 1  and a second propping end  570 - 2 . The first propping end  570 - 1  of any one of the second propping module  570  is connected to a first propping end  570 - 1  or a second propping end  570 - 2  of another one of the second propping module  570 . The plurality of second propping modules  570  in the second propping structure  57  are mutually connected to form a mesh structure. 
     Each first propping module  560  includes an elongated sleeve  560 A, a micro motor  560 B, and a connection unit  560 C, in which the micro motor  560 B and the connection unit  560 C are disposed in the elongated sleeve  560 A. The control module  55  is electrically connected to the micro motor  560 B of each first propping module  560 , and controls the micro motor  560 B to adjust a connection length of the connection unit  560 C. In this embodiment, the connection unit  560 C is disposed on an axis of the micro motor  560 B, and the connection length of the connection unit  560 C may be adjusted by the movement of the micro motor. The elongated sleeve  560 A is hollow and can accommodate the micro motor  560 B and the connection unit  560 C. Each second propping module  570  includes an elongated sleeve  570 A, a micro motor  570 B, and a connection unit  570 C, in which the micro motor  570 B and the connection unit  570 C are disposed in the elongated sleeve  570 A. The control module  55  is electrically connected to the micro motor  570 B of each second propping module  570 , and controls the micro motor  570 B to adjust a connection length of the connection unit  570 C. In this embodiment, the connection unit  570 C is disposed on an axis of the micro motor  570 B, and the connection length of the connection unit  570 C may be adjusted by the movement of the micro motor. The elongated sleeve  570 A is hollow and can accommodate the micro motor  570 B and the connection unit  570 C. 
     In this embodiment, each first propping module  560  further includes a pressure sensing unit  560 D which is disposed on an inner surface or an outer surface of the elongated sleeve  560 A. That is, the pressure sensing unit  560 D can be disposed inside or outside the elongated sleeve  560 A. In addition, each pressure sensing unit  560 D is electrically connected to the control module  55 , and is used to detect a pressure value applied on the elongated sleeve. The pressure value detected by each pressure sensing unit  560 D is transmitted to the control module  55 , and then the control module  55  adjusts the corresponding micro motor  560 B and connection unit  560 C according to the pressure. That is, in this embodiment, the pressure values applied by the user to the first propping structure  56  are distributed through the plurality of first propping modules  560  in a mesh structure. That is, the pressure values received by the first propping structure  56  are evenly shared by the plurality of first propping modules  560  distributed in a two-dimensional structure. Moreover, in addition to the force adjustment in a planar direction of the mesh structure, the plurality of first propping modules  560  of the first propping structure  56  are further subjected to some deformation in a vertical direction of the mesh structure. 
     Likewise, each second propping module  570  further includes a pressure sensing unit  570 D which is disposed on an inner surface or an outer surface of the elongated sleeve  570 A. That is, the pressure sensing unit  570 D can be disposed inside or outside the elongated sleeve  570 A. In addition, each pressure sensing unit  570 D is electrically connected to the control module  55 , and is used to detect a pressure value applied on the elongated sleeve. The pressure value detected by each pressure sensing unit  570 D is transmitted to the control module  55 , and then the control module  55  adjusts the corresponding micro motor  570 B and connection unit  570 C according to the pressure value. That is, in this embodiment, the pressure values applied by the user to the second propping structure  57  are distributed through the plurality of second propping modules  570  in a mesh structure. That is, the pressure value received by the second propping structure  57  are evenly shared by the plurality of second propping modules  570  distributed in a two-dimensional structure. Moreover, in addition to the force adjustment in a planar direction of the mesh structure, the second propping modules  570  of the second propping structure  57  are further subjected to some deformation in a vertical direction of the mesh structure. 
     The control module  55  is electrically connected to the power module  54 . In addition, the power module  54  is further electrically connected to the plurality of micro motors  560 B and pressure sensing units  560 D in the plurality of first propping modules  560 , and the plurality of micro motors  570 B and pressure sensing units  570 D in the plurality of second propping modules  570 . That is, the power module  54  can supply power to the control module  55 , the plurality of micro motors  560 B and pressure sensing units  560 D in the plurality of first propping modules  560 , and the plurality of micro motors  570 B and pressure sensing units  570 D in the plurality of second propping modules  570 . 
     In other embodiments, the pressure sensing units  560 D and  570 D may be selectively disposed in some regions to detect the pressure values applied by the user to the first propping structure  56  and the second propping structure  57 , so that it is unnecessary to dispose one pressure sensing unit  560 D on each first propping module  560  or dispose one pressure sensing unit  570 D on each second propping module  570 . 
     Referring to  FIGS. 19, 20, and 21 , the first propping structure  56  further includes a plurality of node connection modules  561 . A plurality of connection portions (not shown in the figure) are provided around each node connection module  561  to connect with the first end  560 - 1  or the second end  560 - 2  of each first propping module  560 . That is, at least two first propping modules  560  may be connected via the node connection module  561 . In this embodiment, the first propping structure  56  can be bent and adjusted at different angles via the plurality of node connection modules  561 . That is, the first ends  560 - 1  and the second ends  560 - 2  of the first propping modules  560  may be adjusted at different angles in the connection portions of the node connection modules  561 , and may be held at an angle where the user wants to stay. 
     The second propping structure  57  further includes a plurality of node connection modules  571 . A plurality of connection portions (not shown in the figure) are provided around each node connection module  571  to connect with the first end  570 - 1  or the second end  570 - 2  of each second propping module  570 . That is, at least two second propping modules  570  may be connected via the node connection module  571 . In this embodiment, the second propping structure  57  can be bent and adjusted at different angles via the plurality of node connection modules  571 . That is, the first ends  570 - 1  and the second ends  570 - 2  of the second propping modules  570  may be adjusted at different angles in the connection portions of the node connection modules  571 , and may be held at an angle where the user wants to stay. 
       FIGS. 19, 20, and 21  all use the first propping structure  56  as an example for description.  FIG. 19  shows that the first propping structure  56  is not bent and in a flat state,  FIG. 20  shows that the first propping structure  56  is bent at two sides, and  FIG. 21  shows that the first propping structure  56  is bent at one side. In other embodiments, the first propping structure  56  or the second propping structure  57  may be bent in the middle to form a seat and a back support. 
     That is, in this embodiment, the first propping structure  56  and the second propping structure  57  are disposed in the seat module  51  and the back support module  53 , respectively. In other embodiments, the seat module  51  and the back support module  53  may be integrated, and a propping structure identical with the first propping structure  56  or the second propping structure  57  is disposed therein. According to the feature that the first propping structure  56  or the second propping structure  57  can be bent in sections in this embodiment, a propping device for both sitting and lying is obtained. The propping device can be bent to form a chair device having a back support, can also be flattened to form a mattress device for lying, and even can be bent at one side to form the shape of a pillow, so as to provide better user experience. 
     Referring to  FIG. 22 , the mesh structure formed by connection of the plurality of propping modules  560  in  FIG. 22  are realized by being based on a triangular shape. In other embodiments, the mesh structure formed by connection of the plurality of propping modules  560  may be a connected structure in the shape of a triangle, square, or rectangle, or in an irregular shape. 
     In this embodiment, the first propping structure  56  and the second propping structure  57  are respectively disposed in the seat module and the back support module, and serve as propping material layers. A comfortable material layer may also be disposed on the seat module and the back support module to improve the comfortable experience. 
     Fourth Embodiment 
     Referring to  FIGS. 23 and 24 ,  FIG. 23  is a schematic view of a chair device in a fourth embodiment of the present disclosure, and  FIG. 24  is another schematic view of the chair device in  FIG. 23 . 
     In this embodiment, a mesh structure formed by connection of a plurality of propping modules in a propping structure  62  is directly used as a propping material layer to form, for example, a folding mattress device. 
     In this embodiment, a propping device  6  includes a frame  60 , a control module  61 , and a propping module  62 . The structure and function of the control module  61  and the propping module  62  are similar to those of the control module  55 , the first propping structure  56 , and the second propping structure  57  in the previous embodiment, and will not be reiterated herein. In this embodiment, the mesh structure formed by connection of the plurality of propping modules  620  are connected to the frame  60 . The propping device  6  in this embodiment may be bent in sections in the above-described manner to form a propping device for both sitting and lying. The propping device can be bent to form a chair device having a back support, can also be flattened to form a mattress device for lying, and even can be bent at one side to form the shape of a pillow, so as to provide better user experience. 
     Referring to  FIG. 25 ,  FIG. 25  is a schematic view of a mattress device in the fourth embodiment of the present disclosure. 
     In this embodiment, the mesh structure formed by connection of the plurality of propping modules  620  are directly used as a propping material layer to form, for example, a folding mattress device. 
     Fifth Embodiment 
     Referring to  FIGS. 26, 27, and 28 ,  FIG. 26  is a schematic view of a mattress device in an embodiment of the present disclosure,  FIG. 27  is a schematic view showing that a pressure adjustment module is disposed in the mattress device in an embodiment of the present disclosure, and  FIG. 28  is a block diagram of the mattress device in an embodiment of the present disclosure. 
     A mattress device  3  includes a mattress module  30 , a control module  31 , a pressure adjustment module  32 , a pressure sensing module  33 , a sensor module  34 , a power module  35 , and a comfort level analysis module  36 . The pressure adjustment module  32  and the pressure sensing module  33  are both disposed in the mattress module  30 , and the control module  31  may be disposed inside or outside the mattress module  30 . 
     The mattress module  30  includes a comfortable material layer  301  and a propping material layer  302 . The pressure adjustment module  32  and the pressure sensing module  33  are disposed between the comfortable material layer  301  and the propping material layer  302 . That is, the comfortable material layer  301  is disposed above the pressure adjustment module  32  and the pressure sensing module  33 . The comfortable material layer  301  may be made from fabric or foam; and the propping material layer  302  may be made from wood, plastic, or metal. 
     The power module  35  is electrically connected to the control module  31 , the pressure adjustment module  32 , the pressure sensing module  33 , and the sensor module  34 , so as to supply power to the control module  31 , the pressure adjustment module  32 , the pressure sensing module  33 , and the sensor module  34 . The power module  35  is an AC-to-DC voltage converter or a DC-to-AC voltage converter. The pressure sensing module  33  is formed by a pressure sensor module printed on a flexible substrate or a plurality of independently disposed pressure sensors. 
     The pressure adjustment module  32  includes a plurality of pressure adjustment units  321  which are separately electrically connected to the control module. In this embodiment, the plurality of pressure adjustment units  321  are arranged in a matrix. 
     The pressure sensing module  33  includes a plurality of pressure sensing units  331 , and each of the pressure sensing units  331  is disposed at one side of the corresponding pressure adjustment unit  321 . That is, in this embodiment, the pressure sensing units  331  collocate with the pressure adjustment units  321  in a one-to-one correspondence manner. A first side of each pressure adjustment unit  321  is disposed on the propping material layer  302 , and a second side of the pressure adjustment unit  321  is in contact with the comfortable material layer  301 . The pressure sensing unit  331  is disposed on the second side of the pressure adjustment unit  321 . The plurality of pressure sensing units  331  are used to detect pressures applied by a user who lies on the mattress module  30  to different places on the mattress module  30 . That is, each pressure sensing unit  331  can obtain a sensed pressure signal after detection, and transmits the signal to the control module  31 . 
     When the plurality of sensed pressure signals from the plurality of pressure sensing units  331  of the pressure sensing module  33  are transmitted to the control module  31 , the control module  31  adjusts each of the pressure adjustment units  321  in the pressure adjustment module  32  individually according to the plurality of sensed pressure signals from the plurality of pressure sensing units  331 . That is, in this embodiment, each pressure adjustment unit  321  in the pressure adjustment module  32  is adjusted individually. 
     The control module  31  is a CPU, an ASIC, or an MCU. 
     Referring to  FIG. 29 ,  FIG. 29  is a schematic view of the pressure adjustment module in the embodiment of the present disclosure. 
     In this embodiment, each pressure adjustment unit  321  includes a micro motor  321 A, a connection unit  321 B, and an elastic unit  321 C. The connection unit  321 B is connected onto the micro motor  321 A, and the elastic unit  321 C is disposed on the connection unit  321 B. In this embodiment, the micro motor  321 A is vertically connected to the elastic unit  321 C, and implements a back-and-forth movement stroke. That is, when the pressure adjustment unit  321  is vertically disposed, the micro motor  321 A can be vertically adjusted to different heights. 
     Referring to  FIG. 30 ,  FIG. 30  is another schematic view of the pressure adjustment module in the embodiment of the present disclosure. 
     In this embodiment, each pressure adjustment unit  321 ′ includes a micro motor  321 A′, a connection unit  321 B′, and an elastic unit  321 C′. The connection unit  321 B′ is connected onto the micro motor  321 A′, and the elastic unit  321 C′ is disposed on the connection unit  321 B′. In this embodiment, the micro motor  321 A′ is horizontally linked to the elastic unit  321 C′, and a central axis of the micro motor  321 A′ is connected to the connection unit  321 B′. These micro motors  321 A′ are small in size and are densely arranged, and can therefore provide a better lying experience. Especially, since the micro motors  321 A and  321 A′ in the present disclosure are densely arranged and capable of being adjusted in real time, the micro motors  321 A and  321 A′ can provide a user who lies down to have a wrapping feeling and a comfortable lying experience. 
     In this embodiment, the elastic units  321 C and  321 C′ may be made from rubber or foam, the connection unit  321 B is a metal sleeve, and the connection unit  321 B′ includes an eccentric wheel and a linked metal arm. 
     Referring to  FIGS. 31 and 32 ,  FIG. 33  is still another schematic view of the pressure adjustment module in an embodiment of the present disclosure, and  FIG. 32  is a schematic view of first spherical objects and second spherical objects in the pressure adjustment module in  FIG. 31 . 
     In this embodiment, the pressure adjustment module  32 ′ includes a plurality of airbag units  32 A and a pump (not shown in the figure). The plurality of airbag units  32 A are connected to the pump, and the pump (not shown in the figure) is used to inflate or deflate the airbag units  32 A separately, so as to implement pressure adjustment. Similar to the arrangement in the foregoing embodiment, the comfortable material layer  301  is also disposed above the plurality of airbag units  32 A of the pressure adjustment module  32 ′. Similarly, each airbag unit  32 A may be inflated or deflated independently, so as to implement pressure adjustment. These airbag units  32 A are each designed into a small-sized airbag, and are densely arranged, thus providing a better lying experience. 
     Referring to  FIG. 32 ,  FIG. 32  is a schematic view showing that a plurality of spherical objects is disposed on the plurality of airbag units  32 A of the pressure adjustment module  32 ′. 
     This embodiment involves two types of spherical objects, one of which being a big first spherical object  32 A 1  and the other one being a small second spherical object  32 A 2 . The big first spherical objects  32 A 1  are disposed in gaps between the airbag units  32 A, and the small second spherical objects  32 A 2  are disposed on the surfaces of the airbag units  32 A. The first spherical objects  32 A 1  and the second spherical objects  32 A 2  are both connected in series via a steel wire or plastic wire, so that the first spherical objects  32 A 1  and the second spherical objects  32 A 2  can be disposed on the pressure adjustment module  32 ′. The first spherical objects  32 A 1  and the second spherical objects  32 A 2  are steel beads, ceramic beads, plastic beads, or the like, and are in contact with the comfortable material layer  301  in a point contact mode. 
     As shown in  FIG. 32 , the first spherical objects  32 A 1  and the second spherical objects  32 A 2  in this embodiment are both arranged in a matrix, and may be arranged in the shape of a triangle, quadrangle, hexagon, or polygon in other embodiments. 
     In this embodiment, the sensor module  34  is mainly used to detect mattress environmental parameters of the mattress module  30 . The sensor module  34  includes at least a gyro sensor or a vibration sensor. The mattress environmental parameters include at least a vibration status of a mattress module  30 . 
     In addition, the sensor module  34  may further include a temperature sensor or a humidity sensor used to detect the temperature or humidity of the surface of the mattress module. 
     The sensor module  34  may further include an image sensor, an infrared sensor, a laser ranging sensor, an optical sensor, an olfactory gas sensor, or a weight sensor. 
     The comfort level analysis module  36  receives the mattress environmental parameters from the sensor module  34  and the plurality of sensed pressure signals from the plurality of pressure sensing units  331  of the pressure sensing module  33 , so as to determine a comfort level when the user lies on the mattress device  3 . 
     That is, when the user lies on the mattress device  3 , the plurality of pressure sensing units  331  of the pressure sensing module  33  detects a pressure value which is applied by the user on the comfortable material layer  301  of the mattress module  30 , and transmits sensed pressure signals obtained after detection to the control module  30 . The control module  30  then transmits these sensed pressure signals to the comfort level analysis module  36 . In addition, the mattress environmental parameters detected by the sensor module  14  are also transmitted to the comfort level analysis module  36  for analysis. 
     The comfort level analysis module  36  first makes analysis according to the mattress environmental parameters. When a vibration status in the mattress environmental parameters is greater than a vibration default value, it is determined that the comfort level is low. Further, the comfort level analysis module  36  analyzes the plurality of sensed pressure signals, and searches for a region that has a high pressure value. When a maximum pressure value of a region is greater than N times of a surrounding pressure value, the comfort level analysis module  36  provides a low-comfort pressure adjustment signal to the control module  30 , so that the control module  30  adjusts corresponding pressure adjustment units  321  of the pressure adjustment module  32  to reduce a pressure difference value of a region that has a large pressure difference. N is greater than or equal to 1, and is a rational number. That is, the control module  10  adjusts the region that has a large pressure difference in the sensed pressure signals according to the low-comfort pressure adjustment signal. Afterwards, the comfort level analysis module may continuously monitor a lying status of the user according to the mattress environmental parameters. 
     Referring to  FIGS. 33 and 34 ,  FIG. 33  is a schematic view showing that a first bed body raising module and a second bed body raising module are disposed below the mattress module in an embodiment of the present disclosure.  FIG. 34  is a schematic view showing that the first bed body raising module and the second bed body raising module are used to adjust the height of a bed body in an embodiment of the present disclosure. 
     The mattress device  3  further includes a first bed body raising module  37  and a second bed body raising module  38  which are respectively disposed at two sides of the mattress module  10 . In this embodiment, the mattress module  10  includes at least three mattress units which are a first mattress unit  305 , a second mattress unit  306 , and a third mattress unit  307 . 
     The first mattress unit  305 , the second mattress unit  306 , and the third mattress unit  307  are all arranged in a matrix. The first bed body raising module  37  and the second bed body raising module  38  are disposed respectively below the first mattress unit  305  and the third mattress unit  307  at the two sides of the mattress module  30 , and are used to raise the two mattress units  305  and  307 . In this embodiment, the first bed body raising module  37  and the second bed body raising module  38  separately include a motor (not shown in the figure) and a jack unit  371 . Moreover, the first bed body raising module  37  and the second bed body raising module  38  are electrically connected to the control module  31 , so as to receive a bed body raising signal from the control module  31 . 
     In this embodiment, after the user lies down for a period of time, the control module  31  may send a bed body raising signal to the first bed body raising module  37 , so as to increase the height of the first bed body raising module  37 . Thus, the first mattress unit  305  of the mattress module  30  is raised from a first height D 1  to a second height D 2  to form a tilted curve, so that the user can turn over in this case. When detecting a sensed pressure distribution information that indicates the user has turned over, the control module  11  sends a reply signal to the first bed body raising module  17 , so as to restore the first bed body raising module  17  to the first height D 1 . In this way, the mattress module  30  returns to a flat state. The second height D 2  can be changed, and is greater than the first height D 1 . 
     Moreover, the mattress device  3  further includes a time measurement module  39  which is electrically connected to the control module  31  and is a timer. After receiving the plurality of sensed pressure signals from the pressure sensing module  33  for a predetermined period of time, the control module  31  provides a plurality of pressure adjustment signals to the plurality of pressure adjustment units  321  of the pressure adjustment module  32 , so as to adjust pressure values supplied by the pressure adjustment units  321  to the mattress module  30 . The predetermined time may be 5 or 10 minutes, and be set by the user personally. 
     The mattress device  3  further includes a communication module  40 , which is electrically connected to the control module  31 . 
     The mattress device  3  may be communicatively connected to a server  9  or a mobile device  8  via the communication module  20 . The user may be communicatively connected to the communication module  40  in the mattress device  3  via an APP in the mobile device  9 , so as to send a pressure adjustment signal for pressure adjustment. 
     In this embodiment, the communication module  40  includes a wired communication unit (not shown in the figure) and a wireless communication unit (not shown in the figure). The wired communication unit (not shown in the figure) may also be independently disposed so as to establish a communicative connection with the server  9 , and to receive a control signal from the server  9  or data in a database (not shown in the figure). 
     The wireless communication unit (not shown in the figure) may be a WI-FI® communication unit, a BLUETOOTH® communication unit, a ZIGBEE® communication unit, a LoRa communication unit, a Sigfox communication unit, or an NB-IoT communication unit. 
     Moreover, the mattress device  3  further includes a storage module  41  used to store various parameters of the mattress device  3 . The storage module  41  is a flash memory, a read-only memory, a programmable read-only memory, an electrically rewritable read-only memory, an erasable programmable read-only memory, or an electrically-erasable programmable read-only memory. 
     Sixth Embodiment 
     Referring to  FIGS. 35, 36, and 37 ,  FIG. 35  is a schematic view showing that a mattress device is disposed with an edge pressure adjustment module in an edge region in an embodiment of the present disclosure.  FIG. 36  is a schematic view showing that the edge region of the mattress device is higher than a central region in an embodiment of the present disclosure.  FIG. 37  is another schematic view showing that the mattress device is disposed with the edge pressure adjustment module in the edge region in an embodiment of the present disclosure. 
     Referring to  FIG. 35 , a pressure adjustment module  32  and a pressure sensing module  33  are disposed in a central region of the mattress device  3 ′. In addition, the edge region  30 E of the mattress device  3 ′, namely, the bed frame, has an edge pressure adjustment module EPM 1  and an edge pressure sensing module EPS 1  disposed therein. 
     The edge pressure adjustment module EPM 1  includes a plurality of edge pressure adjustment units PM 1 , and the edge pressure adjustment units PM 1  and pressure adjustment units  321  all include a micro motor. Likewise, the edge pressure sensing module EPS 1  includes a plurality of edge pressure sensing units PS 1  each disposed at one side of the corresponding edge pressure adjustment unit PM 1 . That is, the edge pressure sensing units PS 1  collocate with the edge pressure adjustment units PM 1  in a one-to-one correspondence manner. 
     In this embodiment, one to three rows of edge pressure adjustment units PM 1  may be arranged in the edge region  30 E, so as to improve the lying comfort. In other embodiments, the number of the edge pressure adjustment units PM 1  may be adjusted according to practical requirement. 
     Each edge pressure adjustment unit PM 1  includes a micro motor (not shown in the figure), a retractable unit (not shown in the figure), and an elastic unit (not shown in the figure). 
     The retractable unit (not shown in the figure) is connected onto the micro motor (not shown in the figure) in the edge pressure adjustment unit PM 1 , and the elastic unit (not shown in the figure) is disposed on the retractable unit (not shown in the figure). In this embodiment, the retractable unit (not shown in the figure) may be adjusted in length by means of a torque change or force output change of the micro motor. In addition, the edge pressure adjustment unit PM 1  in the edge region  10 E may be designed to extend at different angles, such as a vertical angle, a horizontal angle, or an oblique angle, so that the edge region  10 E provides a better comfort. 
     Referring to  FIG. 36 , the retractable unit (not shown in the figure) of the edge pressure adjustment unit PM 1  disposed in the edge region  30 E is flexibly adjusted in length in a vertical direction, and the edge region  30 E is higher than the mattress module  10  in the central region. 
     Referring to  FIG. 37 , the retractable unit (not shown in the figure) of the edge pressure adjustment unit PM 1  disposed in the edge region  30 E is flexibly adjusted in length in a horizontal direction, and in this case, the mattress module  30  is horizontally larger than the original size. 
     If multiple rows of the edge pressure adjustment units PM 1  are disposed in the edge region  30 E, a small arc-shaped fence is formed around the mattress device  3 , so that the user is prevented from falling off the mattress device. 
     When the user lies on the edge region  30 E, the edge pressure sensing units PS 1  in the edge region  30 E send sensed signals to the control module  31 , and then the control module  31  may send an edge control signal to the plurality of edge pressure adjustment units PM 1  of the edge pressure adjustment module EPM 1 , so as to adjust the softness and comfort of the edge region  30 E. 
     In other embodiments, a frame unit (not shown in the figure) may be disposed above the plurality of edge pressure adjustment units PM 1 . That is, upon receiving the edge control signal from the control module  31 , the plurality of edge pressure adjustment units PM 1  may drive a gear mechanism, pneumatic device, or hydraulic device to adjust the position of the frame unit (not shown in the figure). In this embodiment, the frame unit (not shown in the figure) is a retractable connected frame tube and is disposed at one side of the edge region  30 E. When the frame unit rises, a desired fencing effect is achieved around the mattress device  3 . In this way, a young user, for example, a baby, is unlikely to fall off the mattress device  3  when lying thereon. In addition, the frame unit (not shown in the figure) may be disposed in the mattress module  30  or on sides of the mattress module  30 . 
     Advantageous Effects of the Embodiments 
     One of the advantageous effects of the present disclosure lies in that, the chair device of the present disclosure is provided with a first pressure adjustment module and a second pressure adjustment module that can be adjusted independently in real time, thus improving user experience. In addition, the chair device of the present disclosure can offer different adjustment manners according to different use statuses of the seat module and the back support module, so as to adjust the first pressure adjustment module and the second pressure adjustment module. Moreover, the first pressure adjustment module and the second pressure adjustment module of the present disclosure are densely arranged to provide a wrapping experience for the user. 
     The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. 
     The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others skilled in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope.