Patent Publication Number: US-11649656-B2

Title: Smart deadlock system

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims the benefit under 35 USC § 119(a) of Korean Patent Application Nos. 10-2020-0020868 filed on Feb. 20, 2020 and 10-2020-0141136 filed on Oct. 28, 2020, in the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes. 
     TECHNICAL FIELD 
     The present disclosure relates to a deadlock system. 
     BACKGROUND 
     In general, a doorlock is installed in a door, and after the doorlock is unlocked, a lever installed on the outside of the door is pulled to open the door. 
     The doorlock installed in the door includes a lock function in itself. Generally, the doorlock extends outward from the door, and may be susceptible to external impacts such as forces according to the shape or size. 
     To prevent this situation, most of doorlocks further include deadlocks exclusively having a lock function. The deadlock is designed to open the door by turning a thumb-turn from the inside of the door and using a key from the outside of the door. 
     In the same way as the doorlock, the deadlock is an opening/closing mechanism using a key. Accordingly, unless an external mechanical force is used, it is impossible to open the closed door without the key. Additionally, since the key is difficult to copy, unless the key is lost, the door is kept in closed state. 
     When only the manual opening/closing mechanism is used, there is inconvenience of having to always possess the key, and when the key is lost, there is inconvenience of making a new key that matches the deadlock or breaking the door. Additionally, in case of emergency such as fires, it is difficult to cope with such situations quickly, and thus there is a risk that damage will increase. 
     Accordingly, it is necessary to develop a deadlock with security by maintaining the mechanical opening/closing of the door using the key and enhanced convenience by applying automatic opening/closing using information and communications technology (ICT) such as smartphones. 
     SUMMARY 
     The present disclosure is directed to providing a smart deadlock system with high security and convenience together by simultaneously applying mechanical manual opening/closing that deadlocks originally have, and automatic opening/closing using an electrical signal. 
     The present disclosure is further directed to providing a smart deadlock system in which a communication device for communication with a smartphone, or a sensor for sensing external situations such as vibration/fire is mounted inside to make use of information and communications technology (ICT), thereby automatically opening and closing the door from the outside, and coping with emergency situations quickly. 
     The present disclosure is further directed to providing a smart deadlock system configured to disable automatic opening/closing when a user is at home, thereby improving security, and provide enhanced convenience through selection of manual and automatic opening/closing. 
     To achieve the above-described objects, there is provided a smart deadlock system including a thumb-turn, a key cylinder, and a connecting shaft connecting the thumb-turn and the key cylinder, the smart deadlock system including a sensor module including a sensing unit to sense a rotation state of a rotation sensing element inserted onto the connecting shaft, and generate sensing information associated with the rotation state of the rotation sensing element; and a rotation information generation unit to receive the sensing information from the sensing unit, and generate rotation information associated with an extent of rotation of the rotation sensing element based on the sensing information. 
     In addition, there is provided a smart deadlock system including a thumb-turn, a key cylinder, a connecting shaft connecting the thumb-turn and the key cylinder, and a sensor module to sense a motion of the connecting shaft, the smart deadlock system including a comparison module including a comparison unit to receive motion information of the connecting shaft from the sensor module in a sequential order and compare previous motion information with current motion information, and a change information generation unit to generate change information of the motion information; and a control module to receive the change information generated by the comparison module and control a storage location of the change information. 
     The smart deadlock system of the present disclosure can check the operation of the deadlock more accurately by sensing the rotation state of the rotation sensing element using the sensor. 
     Additionally, it is possible to provide high security and convenience together by simultaneously applying mechanical manual opening/closing that deadlocks originally have, and automatic opening/closing using an electrical signal. 
     Additionally, it is possible to automatically open and close the door from the outside and cope with emergency situations quickly by mounting inside a communication device for communication with a mobile terminal or a sensor for sensing external situations such as vibration/fire to make use of ICT. 
     Additionally, it is configured to disable automatic opening/closing when a user is at home, thereby improving security, and it is possible to enhance convenience through selection of manual and automatic opening/closing. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a block diagram of a smart deadlock system according to an embodiment of the present disclosure. 
         FIG.  2    is a block diagram of a smart deadlock system according to another embodiment of the present disclosure. 
         FIG.  3    is a partial exploded perspective view of the hardware structure of a smart deadlock system applicable to embodiments of the present disclosure. 
         FIG.  4    is a partial exploded perspective view when viewed in the opposite direction to  FIG.  3   . 
         FIG.  5    is a diagram showing that a receiving unit receives a light source of a generation unit when a rotation sensing element of the present disclosure is provided as a driving gear. 
         FIG.  6    is a diagram showing that a receiving unit does not receive a light source of a generation unit when a rotation sensing element of the present disclosure is provided as a driving gear. 
         FIG.  7    is a diagram showing that a receiving unit receives a light source of a generation unit when a rotation sensing element of the present disclosure is provided as a sensing rotary plate. 
         FIG.  8    is a diagram showing that a receiving unit does not receive a light source of a generation unit when a rotation sensing element of the present disclosure is provided as a sensing rotary plate. 
     
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS 
     Exemplary embodiments of the present disclosure are described with reference to the accompanying drawings to provide the full and complete understanding of the present disclosure. The embodiments of the present disclosure may be modified in many forms, and the scope of the present disclosure should not be interpreted as being limited to the embodiments described in detail below. These embodiments are provided to fully explain the present disclosure to those skilled in the art. Accordingly, the shape of the elements in the drawings may be exaggerated for clarity of description. It should be noted that like reference signs denote like elements in each drawing. Additionally, a detailed description of known functions and elements that are determined to make the subject matter of the present disclosure unnecessarily ambiguous is omitted herein. 
     Hereinafter, the embodiments of the present disclosure will be described with reference to the accompanying drawings. 
       FIG.  1    is a block diagram of a smart deadlock system according to an embodiment of the present disclosure.  FIG.  2    is a block diagram of a smart deadlock system according to another embodiment of the present disclosure.  FIG.  3    is a partial exploded perspective view of the hardware structure of the smart deadlock system applicable to the embodiments of the present disclosure.  FIG.  4    is a partial exploded perspective view when viewed in the opposite direction to  FIG.  3   .  FIG.  5    is a diagram showing that a receiving unit receives a light source of a generation unit when a rotation sensing element of the present disclosure is provided as a driving gear.  FIG.  6    is a diagram showing that the receiving unit does not receive the light source of the generation unit when the rotation sensing element of the present disclosure is provided as a driving gear.  FIG.  7    is a diagram showing that the receiving unit receives the light source of the generation unit when the rotation sensing element of the present disclosure is provided as a sensing rotary plate.  FIG.  8    is a diagram showing that the receiving unit does not receive the light source of the generation unit when the rotation sensing element of the present disclosure is provided as a sensing rotary plate. 
     As shown in the drawings, the smart deadlock system according to an embodiment of the present disclosure including a thumb-turn  151 , a key cylinder  241  and a connecting shaft  152  connecting the thumb-turn  151  and the key cylinder  241  includes a sensor module  400  including a sensing unit  410  to sense the rotation state of a rotation sensing element  900  inserted onto the connecting shaft  152  and generate sensing information (id) associated with the rotation state of the rotation sensing element  900 ; and a rotation information generation unit  420  to receive the sensing information (id) from the sensing unit  410  and generate rotation information (ir) associated with the extent of rotation of the rotation sensing element  900  based on the sensing information (id). 
     Hereinafter, each element of the present disclosure will be descried in detail with reference to  FIGS.  1  to  8   . 
     The smart deadlock system according to an embodiment of the present disclosure is a smart deadlock system including a thumb-turn  151 , a key cylinder  241  and a connecting shaft  152  connecting the thumb-turn  151  and the key cylinder  241 , and in particular, the smart deadlock system includes a sensor module  400  to sense the extent of rotation of a rotation sensing element  900  by sensing the rotation state of the rotation sensing element  900  inserted onto the connecting shaft  152 . 
     Here, the sensor module  400  may include a sensing unit  410  to generate sensing information (id) associated with the rotation state of the rotation sensing element  900 ; and a rotation information generation unit  420  to generate rotation information (ir) associated with the extent of rotation of the rotation sensing element  900  based on the sensing information (id). 
     First, the sensing unit  410  senses the rotation state of the rotation sensing element  900  inserted onto the connecting shaft  152 , and generates sensing information (id) associated with the rotation state of the rotation sensing element  900 . 
     The rotation sensing element  900  is inserted onto the connecting shaft  152  and rotates with the connecting shaft  152 , and accordingly the rotation state of the rotation sensing element  900  may be sensed by the sensing unit  410  to sense a motion (the extent of rotation) of the connecting shaft  152 . 
     Here, referring to  FIGS.  3  and  5   , the sensing unit  410  includes a generation unit  411  disposed on one side of the rotation sensing element  900  to generate a predetermined light source L toward the rotation sensing element  900 ; and a receiving unit  412  disposed on the other side of the rotation sensing element  900  to receive the light source L passing through the rotation sensing element  900 . 
     First, the generation unit  411  is disposed on one side of the rotation sensing element  900  inserted onto the connecting shaft  152  to generate a predetermined light source L toward the rotation sensing element  900 . 
     In more detail, the generation unit  411  may be disposed at the outside spaced a predetermined distance apart from the center of the connecting shaft  152  onto which the rotation sensing element  900  is inserted. 
     The light source L generated by the generation unit  411  may be, for example, a laser beam, but is not limited thereto, and all types of light sources that can arrive at the receiving unit  412  as described below through the rotation sensing element  900  may be the light source L generated by the generation unit  411 . 
     Subsequently, the receiving unit  412  is disposed on the other side of the rotation sensing element  900  to receive the light source L passing through the rotation sensing element  900 . 
     In more detail, the receiving unit  412  may be disposed at the outside spaced a predetermined distance apart from the center of the connecting shaft  152  onto which the rotation sensing element  900  is inserted, and the receiving unit  412  may be disposed opposing the generation unit  411  to receive the light source L passing through the rotation sensing element  900 . 
     Here, the sensing unit  410  according to an embodiment of the present disclosure senses the rotation state of the rotation sensing element  900  depending on whether or not the receiving unit  412  receives the light source L, and generates the sensing information (id) according to the sensing result. 
     Accordingly, the sensing information (id) may include information about the receiving unit  412  having received the light source L and information about the receiving unit  412  having not received the light source L. 
     For example, as shown in  FIGS.  5  and  6   , the rotation sensing element  900  may be provided as a driving gear  163  having a plurality of teeth extending along the outer periphery, spaced apart at a predetermined interval, and in this instance, the light source L generated by the generation unit  411  may or may not be received by the receiving unit  412  through the outer part of the driving gear  163  depending on the rotation state of the driving gear  163 . 
     In more detail, when the rotation state of the driving gear  163  inserted onto the connecting shaft  152  is formed as shown in  FIG.  5   , the light source L generated by the generation unit  411  may be received by the receiving unit  412  through the teeth of the gear. 
     On the contrary, when the rotation state of the driving gear  163  inserted onto the connecting shaft  152  is formed as shown in  FIG.  6   , the light source L generated by the generation unit  411  is blocked by the teeth of the gear and cannot be received by the receiving unit  412 . 
     Accordingly, the sensing unit  410  may generate, as the sensing information (id), information about the receiving unit  412  having received the light source L or information about the receiving unit  412  having not received the light source L. 
     Meanwhile, as shown in  FIGS.  7  and  8   , the rotation sensing element  900  may be provided as a rotation sensing plate  164  having a plurality of light source passage holes  164 - 1  along the outer peripheral direction, spaced a predetermined interval apart from each other, and in this instance, the light source L generated by the generation unit  411  may or may not be received by the receiving unit  412  through the light source passage holes  164 - 1  of the rotation sensing plate  164  depending on the rotation state of the rotation sensing plate  164 . 
     In more detail, when the rotation state of the rotation sensing plate  164  inserted onto the connecting shaft  152  is formed as shown in  FIG.  7   , the light source L generated by the generation unit  411  may be received by the receiving unit  412  through the light source passage holes  164 - 1  of the rotation sensing plate  164 . 
     On the contrary, when the rotation state of the rotation sensing plate  164  inserted onto the connecting shaft  152  is formed as shown in  FIG.  8   , the light source L generated by the generation unit  411  is blocked by the outer part of the rotation sensing plate  164  and cannot be received by the receiving unit  412 . 
     When the rotation sensing element  900  is provided as the rotation sensing plate  164 , it is possible to prevent a phenomenon in which the rotation state of the driving gear  163  is incorrectly sensed by the wear of the teeth of the driving gear  163 . 
     According to the foregoing, the sensing unit  410  may generate, as the sensing information (id), information about the receiving unit  412  having received the light source L or information about the receiving unit  412  having not received the light source L. 
     Meanwhile, the sensing unit  410  generates the sensing information (id) and transmits the sensing information (id) to the rotation information generation unit  420  of the sensor module  400 . 
     The rotation information generation unit  420  receives the sensing information (id) from the sensing unit  410 , and generates rotation information (ir) associated with the extent of rotation of the rotation sensing element  900  based on the sensing information (id). 
     As described above, the sensing information (id) may be information about the receiving unit  412  having received the light source L or information about the receiving unit  412  having not received the light source L, and accordingly the rotation information generation unit  420  may receive the information about the receiving unit  412  having received the light source L or the information about the receiving unit  412  having not received the light source L from the sensing unit  410 . 
     The rotation information generation unit  420  generates the rotation information (ir) associated with the extent of rotation of the rotation sensing element  900  based on the sensing information (id) received from the sensing unit  410 . 
     For example, the rotation information generation unit  420  may generate the rotation information (ir) associated with the extent of rotation of the rotation sensing element  900  according to the number of times in which the information about the receiving unit  412  having received the light source L and the information about the receiving unit  412  having not receive the light source L was received in an alternating manner. 
     According to the foregoing, when the rotation sensing element  900  rotates, the sensing unit  410  sequentially forms the information about the receiving unit  412  having received the light source L and the information about the receiving unit  412  having not received the light source L in an alternating manner, and thus may sense the extent of rotation of the rotation sensing element  900  according to the number of times in which the information about the receiving unit  412  having received the light source L and the information about the receiving unit  412  having not received the light source L was generated in an alternating manner. 
     It is because the greater extent of rotation of the rotation sensing element  900 , the larger number of times in which the information about the receiving unit  412  having received the light source L and the information about the receiving unit  412  having not received the light source L was generated in an alternating manner. 
     As such, the rotation information generation unit  420  may receive the sensing information (id) from the sensing unit  410 , generate the rotation information (ir), and sense the motion (the extent of rotation) of the connecting shaft  152  onto which the rotation sensing element  900  is inserted, from the finally generated rotation information (ir). 
     Subsequently, the smart deadlock system according to an embodiment of the present disclosure including the thumb-turn  151 , the key cylinder  241 , the connecting shaft  152  connecting the thumb-turn  151  and the key cylinder  241  and the sensor module  400  to sense the motion of the connecting shaft  152  may include a comparison module  500  including a comparison unit  510  to receive motion information of the connecting shaft  152  from the sensor module  400  in a sequential order and compare the previous motion information with the current motion information, and a change information generation unit  520  to generate change information (is) of the motion information; and a control module  600  to receive the change information (is) generated by the comparison module  500  and control the storage location of the change information (is). 
     Here, the sensor module  400  may be provided as the above-described sensor module  400 , and accordingly a detailed description of the sensor module  400  is omitted herein. 
     The comparison module  500  includes the comparison unit  510  to receive the motion information of the connecting shaft  152  from the sensor module  400  in a sequential order and compare the previous motion information with the current motion information, and the change information generation unit  520  to generate the change information (is) of the motion information. 
     First, the comparison unit  510  receives the motion information of the connecting shaft  152  from the sensor module  400  in a sequential order, and compares the previous motion information with the current motion information. 
     According to the foregoing, the motion (rotation information) of the connecting shaft  152  onto which the rotation sensing element  900  is inserted may be sensed from the rotation information (ir) generated by the rotation information generation unit  420 , and thus the motion information of the connecting shaft  152  may be the above-described rotation information (ir) herein, and the following description is made based on that the motion information of the connecting shaft  152  is the rotation information (ir) generated by the rotation information generation unit  420 . 
     The rotation information (ir) is transmitted to the comparison unit  510  in a sequential order. That is, the rotation information (ir) is transmitted from the rotation information generation unit  420  to the comparison unit  510  over time. 
     The previous rotation information (ir) is generated by the rotation information generation unit  420  and transmitted to the comparison unit  510  earlier than the current rotation information (ir). 
     The comparison unit  510  compares the previous rotation information (ir) with the current rotation information (ir), and transmits it to the change information generation unit  520 . 
     Here, the comparison unit  510  determines if the previous rotation information (ir) is the same as the current rotation information (ir), and when they are not the same, the change information generation unit  520  generates the current rotation information (ir) as the change information (is). 
     The comparison unit  510  determines if the previous rotation information (ir) is the same as the current rotation information (ir) by comparing the previous rotation information (ir) and the current rotation information (ir) received in a sequential order. 
     In this instance, when as a result of the comparison, the previous rotation information (ir) is determined to be the same as the current rotation information (ir), the change information generation unit  520  does not generate the change information (is). 
     On the contrary, when as a result of the comparison, the previous rotation information (ir) is not determined to be the same as the current rotation information (ir), the change information generation unit  520  generates the current rotation information (ir) as the change information (is). 
     As a result, when the connecting shaft  152  remains motionless, the change information (is) is not generated, and when the connecting shaft  152  moves, the change information (is) is generated. 
     Subsequently, the control module  600  receives the change information (is) generated by the comparison module  500  and controls the storage location of the change information (is). 
     The control module  600  receives the change information (is) generated by the comparison module  500 , and controls the storage location of the change information (is). 
     The control module  600  receives the change information (is) generated by the change information generation unit  520  of the comparison module  500 , and determines the storage location of the change information (is). 
     Here, the smart deadlock system includes a memory module  700  to store the change information (is) received from the control module  600 ; a communication module  800  to transmit the change information (is) received from the control module  600 ; and a mobile terminal  10  including a storage unit  11  to store the change information (is), and a transmission unit  12  to transmit a driving command (io), and which performs near-field communication with a communication unit. 
     The memory module  700  may be configured in the deadlock to store the change information (is) received from the control module  600 . 
     The communication module  800  may transmit the change information (is) received from the control module  600  to the external mobile terminal  10  as described below. 
     The mobile terminal  10  includes the storage unit  11  to store the change information (is) and the transmission unit  12  to transmit the driving command (io), and performs near-field communication with the communication unit. The near-field communication may be based on Bluetooth or NFC. 
     The control module  600  performs control to store the change information (is) in the memory module  700 , and when the mobile terminal  10  is connected to the communication module  800 , transmits the change information (is) to the mobile terminal  10  through the communication module  800 , not via the memory module  700 , and stores the change information (is) in the storage unit  11 . 
     The control module  600  determines the storage location of the change information (is). When the mobile terminal  10  is connected to the communication module  800  via near-field communication, the change information (is) is stored in the mobile terminal  10 , not the memory module  700 . Accordingly, when the mobile terminal  10  is not connected to the communication module  800 , the change information (is) is stored in the memory module  700 . 
     The smart deadlock system may further include a driving unit to operate the driving gear  163 , and the driving unit may receive the driving command (io) of the mobile terminal  10  through the communication unit and operate the driving gear  163 . 
     A smart deadlock system according to another embodiment of the present disclosure includes a wireless communication bridge  30  to receive the change information (is) from the communication module  800  and transmit the change information (is) to a server  20 ; the server  20  to store the change information (is) received from the wireless communication bridge and transmit the change information (is) to the mobile terminal  10 ; and a display unit  13  to receive the change information (is) from the server  20  and display the change information (is), and a transmission unit  12  to transmit a driving command (io). 
     Referring to  FIG.  2   , the change information (is) generated by the comparison module  500  is transmitted to the communication module  800  through the control module  600 . The change information (is) is transmitted from the communication module  800  to the wireless communication bridge  30 , and the wireless communication bridge  30  transmits the change information (is) to the server  20 . The change information (is) is stored in the server  20 , and the server  20  transmits the change information (is) to the mobile terminal  10 . The mobile terminal  10  displays the received change information (is) on the display unit  13 . 
     That is, the change information (is) is transmitted to the mobile terminal  10  through the communication module  800 , the wireless communication bridge  30  and the server  20 . 
     Additionally, when the mobile terminal  10  transmits the driving command (io) to the server  20 , the server  20  may transmit the driving command (io) to the wireless communication bridge, the wireless communication bridge may transmit the driving command (io) to the communication unit, and the driving unit may operate the driving gear  163  in response to the driving command (io) received from the communication unit. 
     Hereinafter, the detailed structure of the deadlock hardware applicable to the smart deadlock system will be described with reference to  FIGS.  3  and  4   . 
     The deadlock includes an inner assembly  100  including a thumb-turn unit  150  having a thumb-turn  151  and a connecting shaft  152  extending from the thumb-turn  151  and having an insertion groove  153  at the end, the inner assembly  100  installed on the inside of the door and including an inner plate  120  including an inner substrate  130  on the inner surface and an inner cover  110  that wraps around the inner plate  120  on the outer surface; an outer assembly  200  including a key unit  240  having a key cylinder  241  at one end and a square shaft  242  extending from the other end, the outer assembly  200  installed on the outside of the door and including an outer plate  220  including an outer substrate  230  on the inner surface and an outer cover  210  that wraps the outer plate  220  on the outer surface; a driving unit  160  disposed in the inner assembly  100  to open and close the thumb-turn  151 , and including a motor  161  having a driving gear  163  coupled to the connecting shaft  152  of the thumb-turn unit  150  and a transmission gear  162  engaged with the driving gear  163  to transmit the power to the driving gear  163 ; and a deadbolt unit  300  disposed between the inner assembly  100  and the outer assembly  200  and coupled to the connecting shaft  152  of the thumb-turn unit  150  when the square shaft  242  of the key unit  240  is coupled and connected to the insertion groove  153  of the thumb-turn unit  150 , wherein the inner assembly may further include, on the side, a lock button  140  connected to the inner substrate  130  that controls the driving unit  160  to shut off the current flowing to the driving unit  160  in order to enable only manual manipulation, and the outer substrate  230  of the outer assembly may further include a communication unit to remotely control the driving unit  160  from the outside and a sensor unit to sense external situations. 
     The inner assembly  100  is installed on the inner side of the door, and includes the inner plate  120  including the inner substrate  130  on the inner surface and the inner cover  110  that wraps around the inner plate  120  on the outer surface, and the thumb-turn unit  150  including the thumb-turn  151  and the connecting shaft  152  extending from the thumb-turn  151  and having the insertion groove  153  at the end. 
     The inner assembly  100  is installed on the inner side of the door. 
     The door refers to a door that requires a locking mechanism, installed for entry from the outside into the inside, for example, a front door. 
     The inner side of the door refers to the door viewed from the inside of a space in which the door is installed. 
     The inner assembly  100  and the outer assembly  200  as described below are installed facing each other with respect to the door. In this instance, the inner assembly  100  is disposed on the inner side of the door corresponding to the internal space, and the outer assembly  200  is disposed on the outer side of the door corresponding to the external space. 
     The inner assembly  100  includes the inner plate  120  including the inner substrate  130  on the inner surface, and the inner cover  110  that wraps around the inner plate  120  on the outer surface. 
     The inner substrate  130  is a printed circuit board (PCB), and is connected to the driving unit  160  and the lock button  140  as described below to control the operation of the driving unit  160  and the lock button  140 . 
     The inner plate  120  provides a space for attaching the inner substrate  130  to the inner surface. 
     The inner plate  120  has, at the center, a through-hole  101  in which the thumb-turn unit  150  as described below is installed, and a coupling guide to allow coupling with the outer plate  220  as described below by a fastening element. 
     The inner cover  110  is installed on the inner plate  120  around the outer surface of the inner plate  120 . 
     The inner cover  110  has the same shape as the outer surface of the inner plate  120 . Accordingly, the inner cover  110  has a through-hole corresponding to the through-hole  101  of the inner plate  120 . 
     Additionally, the inner assembly  100  includes the thumb-turn unit  150 . 
     The thumb-turn unit  150  includes the thumb-turn  151  and the connecting shaft  152  extending from the thumb-turn  151  and having the insertion groove  153  at the end. 
     The thumb-turn  151  is turned to close or open the deadlock inside the house, and extends toward the inside of the house and is installed in the inner assembly  100 . 
     The connecting shaft  152  extends from the thumb-turn  151 , and has the insertion groove  153  at the end. 
     The connecting shaft  152  is inserted into the through-hole  101  of the inner cover  110  and the inner plate  120 , and the key unit  240  as described below is coupled to the insertion groove  153  at the end. 
     The outer assembly  200  is installed on the outer side of the door, and includes the outer plate  220  including the outer substrate  230  on the inner surface and the outer cover  210  that wraps around the outer plate  220  on the outer surface, and the key unit  240  including the key cylinder  241  at one end and the square shaft  242  extending from the other end. 
     The outer assembly  200  is installed on the outer side of the door. 
     As described above, the outer assembly  200  and the inner assembly  100  are installed facing each other with respect to the door. In this instance, the outer assembly  200  is disposed on the outer side of the door corresponding to the external space, and the inner assembly  100  is disposed on the inner side of the door corresponding to the internal space. 
     The outer assembly  200  includes the outer plate  220  including the outer substrate  230  on the inner surface, and the outer cover  210  that wraps around the outer plate  220  on the outer surface. 
     The outer substrate  230  is a PCB and includes a communication unit and a sensor unit as described below, and the communication unit transmits a signal to the driving unit  160  to operate the driving unit  160 . 
     The outer plate  220  provides a space for attaching the outer substrate  230  to the inner surface. 
     The outer plate  220  has, at the center, a hole  201  in which the key unit  240  as described below is installed, and a coupling guide to allow coupling with the inner plate  120  by a fastening element. 
     The outer cover  210  is installed on the outer plate  220  around the outer surface of the outer plate  220 . 
     The outer cover  210  has the same shape as the outer surface of the outer plate  220 . Accordingly, the outer cover  210  has a hole corresponding to the hole  201  of the outer plate  220 . 
     Additionally, the outer assembly  200  includes the key unit  240 . 
     The key unit  240  includes the key cylinder  241  at one end and the square shaft  242  extending from the other end. 
     The key cylinder  241 , into which the key is inserted to close or open the deadlock from the outside of the house, is installed in the outer assembly  200 . 
     The square shaft  242  extends from the key cylinder  241 , and is coupled to the insertion groove  153  formed at the end of the connecting shaft  152 . 
     When the square shaft  242  and the connecting shaft  152  are coupled to each other, the thumb-turn unit  150  and the key unit  240  are connected to each other to put the deadbolt unit  300  as described below into operation. 
     The driving unit  160  is disposed in the inner assembly  100 , and includes the motor  161  having the driving gear  163  coupled to the connecting shaft  152  of the thumb-turn unit  150  and the transmission gear  162  engaged with the driving gear  163  to transmit the power to the driving gear  163 , and opens and closes the thumb-turn  151 . 
     The driving unit  160  is disposed in the inner assembly  100 . The driving unit  160  is fixed to the inner plate  120  of the inner assembly  100  with a fastening element. 
     The driving unit  160  includes the motor  161  having the driving gear  163  coupled to the connecting shaft  152  of the thumb-turn unit  150  and the transmission gear  162  engaged with the driving gear  163  to transmit the power to the driving gear  163 . 
     The transmission gear  162  is installed in the motor  161 , and the transmission gear  162  is engaged with the driving gear  163  to transmit the power from the motor  161  to the driving gear  163 . 
     The deadbolt unit  300  is disposed between the inner assembly  100  and the outer assembly  200 , and when the square shaft  242  of the key unit  240  and the insertion groove  153  of the thumb-turn unit  150  are coupled and connected to each other, the deadbolt unit  300  is coupled to the connecting shaft  152  of the thumb-turn unit  150 . 
     The deadbolt unit  300  is disposed between the inner assembly  100  and the outer assembly  200 . 
     The deadbolt unit  300  includes a deadbolt and a deadlatch  310  having a hub  320 . 
     The deadbolt  330  protrudes and is locked, and the hub  320  brings the deadbolt  330  into operation by rotation. 
     When the square shaft  242  of the key unit  240  and the insertion groove  153  of the thumb-turn unit  150  are coupled and connected to each other, the hub  320  is coupled to the connecting shaft  152  of the thumb-turn unit  150 . 
     That is, the square shaft  242  of the key unit  240  is coupled to the insertion groove  153  of the thumb-turn unit  150 , and the connecting shaft  152  of the thumb-turn unit  150  is coupled to the hub  320  of the deadlatch  310 . Then, the deadlatch  310  operates, and the deadbolt  330  operates. 
     When the key cylinder  241  of the key unit  240  is operated using the key from the outside or the thumb-turn  151  of the thumb-turn unit  150  is operated from the inside, the deadbolt  330  is extended by rotation of the hub  320  of the deadbolt unit  300 , thereby manually locking or unlocking the deadlock. 
     It is commonly known that the deadbolt  330  is designed to operate by the hub  320  of the deadlatch  310 , and a further detailed description is omitted herein. 
     The lock button  140  is disposed on the side of the inner assembly  100 , and is connected to the inner substrate  130  that controls the driving unit  160  to shut off the current flowing to the driving unit  160  in order to enable only manual manipulation. 
     The lock button  140  is installed on the side of the inner assembly  100 . To this end, the inner cover  110  of the inner assembly  100  and the side of the inner plate  120  have a hole in which the lock button  140  is inserted and installed. 
     The lock button  140  is connected to the inner substrate  130  that controls the driving unit  160 . In detail, the inner substrate  130  has a button for shutting off the current flowing to the driving unit  160 , and when the lock button  140  presses the button, the driving unit  160  stops the operation. 
     Using the lock button  140 , the deadlock may be locked or unlocked by only manual manipulation. Accordingly, when a user presses the lock button  140  in the house, the deadlock may be only opened by the key (outside) or the thumb-turn  151  (inside). 
     The outer substrate  230  of the outer assembly further includes a communication unit to remotely control the driving unit  160  from the outside, and a sensor unit to sense external situations. 
     The communication unit receives a signal from the mobile terminal based on a radio frequency (RF) card, a remote control and Bluetooth. The signal is transmitted to the inner substrate  130  of the inner assembly  100  and operates the deadbolt unit  300  through the motor  161  of the driving unit  160  to lock or unlock the door. 
     The sensor unit may include a communication history storage unit, a camera and a vibration/fire sensor of the mobile terminal. Through this, it is possible to manage access history, identify visitors and cope with intrusion or fires. 
     The deadlock of the present disclosure may use both manual opening/closing by the key cylinder  241  through manipulation of the thumb-turn  151  or the key, and automatic opening/closing by the driving unit  160  through the communication unit or the sensor unit using the mobile terminal. 
     Accordingly, the user may selectively manipulate the deadlock according to the usage environment. 
     Meanwhile, the rotation sensing plate  164  may be inserted onto the connecting shaft  152  and provided adjacent to the driving gear  163  as shown in  FIGS.  7  and  8   . 
     Meanwhile, when the rotation sensing element  900  is the driving gear  163  as shown in  FIGS.  5  and  6   , the sensor module  400  may include the generation unit  411  and the receiving unit  412  disposed on one side and the other side of the driving gear  163  respectively. 
     Additionally, when the rotation sensing element  900  is the rotation sensing plate  164  as shown in  FIGS.  7  and  8   , the sensor module  400  may include the generation unit  411  and the receiving unit  412  disposed on one side and the other side of the rotation sensing plate  164  respectively. 
     The embodiments of the present disclosure have been hereinabove described by way of illustration, and it is obvious to those skilled in the art that a variety of modifications and equivalents may be made thereto. Therefore, it will be clearly understood that the present disclosure is not limited to the embodiments mentioned above in the detailed description. Accordingly, the true technical protection scope of the present disclosure should be defined by the technical spirit of the appended claims. It should be further understood that the present disclosure includes all modifications, equivalents and substitutions within the spirit and scope of the present disclosure defined by the appended claims.