Patent Publication Number: US-2023159076-A1

Title: Mobile infant care device and infant care system including the same

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims the priority to and the benefit of Korean Patent Application No. 10-2021-0160798, filed on Nov. 19, 2021, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. 
     TECHNICAL FIELD 
     The present invention relates to a mobile infant care device and an infant care system including the same. 
     BACKGROUND 
     Generally, when an infant is whining or anxious to sleep, their parent or guardian rocks the infant so that the infant can maintain a comfortable and stable state or sleep soundly. In the past, most infants were rocked by holding or carrying them, but recently, infants have been stably rocked to rest or sleep by using a rocking bed and thus convenience of parents has been improved. 
     In particular, a cradle is used to put infants to sleep, and most cradles include a cradle body having a space where an infant can lie, a support provided on the periphery of the cradle body, and four strings each having one end fixed to the upper end of the support and the other end connected to the upper periphery of the cradle body. In the cradle configured as described above, a person directly rocks the cradle body in which an infant lies in both directions to induce the infant to sleep. 
     However, most infants do not sleep right away while lying on the cradle body, and thus the cradle needs to be continuously rocked until the infant falls asleep. Accordingly, a person who rocks the cradle may hurt their arms and may be exhausted. In order to prevent this, there have been devised various electric cradles having a cradle body rocked by an electric motor. 
     However, conventional cradle bodies are fixed to a specific place, and thus there is a problem that guardians cannot deviate from fixed positions of the cradle bodies in order to care for infants. 
     The matters described as the background art above are only for improving the understanding of the background of the present invention and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art. 
     SUMMARY 
     In accordance with an embodiment, a mobile infant care device includes a carrier having an inner space in which an infant is positioned and includes driving wheels provided at a lower part, a monitoring system fixed to the carrier and configured to monitor a state of the infant positioned in the inner space of the carrier, a driving system for moving a position of the carrier by driving the driving wheels, a communication system for performing wireless communication to transmit a monitoring result of the monitoring system to a user terminal device or to receive an operation input from the user terminal device, and a controller for controlling the driving system to move the carrier based on a monitoring result of the monitoring system or an operation input received through the communication system. 
     The monitoring system may include a camera for photographing the inner space of the carrier, and the monitoring system may monitor a motion, body temperature, or excretion of the infant based on an image captured by the camera. 
     The monitoring system may include a microphone for receiving a voice, and the monitoring system may monitor crying of the infant or whether the infant is sleeping based on a voice input to the microphone. 
     The monitoring system may include a heart rate sensor worn by the infant or a pressure sensor for sensing a pressure of the bottom of the infant, and the monitoring system may monitor a heart rate of the infant input through the heart rate sensor or respiration of the infant sensed through the pressure sensor. 
     The monitoring system may include an environmental sensor for sensing at least one of temperature, humidity, fine dust, and illuminance around the infant, and the monitoring system may monitor environmental data regarding a surrounding environment to which the infant is exposed, input through the environmental sensor. 
     The monitoring system may include a gyro sensor for sensing rotational movement, a rotational angular velocity, or a rotational acceleration of the carrier, and the monitoring system may monitor whether the carrier is overturned based on the rotational movement, rotational angular velocity, or rotational acceleration of the carrier sensed by the gyro sensor. 
     The controller may control the driving system to move the carrier to a preset position of a position of the user terminal device upon determining that the infant needs to be cared for based on a monitoring result detected by the monitoring system or upon reception of an operation input for requesting a call from the user terminal device. 
     The mobile infant care device may further include a detection sensor for sensing an obstacle adjacent to the carrier or an obstacle located on a movement path of the carrier, and the controller may determine a movement path for moving the carrier to a preset position or the position of the user terminal device based on detection information of the detection sensor, and control the driving system based on the determined movement path. 
     The mobile infant care device may further include a mapping system for performing mapping to create a map based on detection information of the detection sensor, and the controller may determine a movement path of the carrier based on a mapping result of the mapping system and the detection information of the detection sensor. 
     The mobile infant care device may further include a speaker for generating a warning sound based on a monitoring result of the monitoring system or providing a pre-stored sound or an input sound based on an operation input received through the communication system. 
     The mobile infant care device may further include an actuator for generating rocking in the inner space of the carrier with respect to the lower part provided with the driving wheels during operation, and the controller may control operation of the actuator based on a monitoring result of the monitoring system or an operation input received through the communication system. 
     In accordance with another embodiment of the present invention, an infant care system includes the mobile infant care device, including a user terminal device for wirelessly communicating with the communication system to receive a monitoring result of the monitoring system or to transmit an operation input received from a user, and a server for receiving a monitoring result of the monitoring system from the communication system or the user terminal device, storing the monitoring result in a database, and transmitting analysis data obtained by comparing the received monitoring result with data pre-stored in the database to the user terminal device. 
     The server may receive body data of an infant input by the user using the user terminal device, and transmit care data regarding care of the infant to the user terminal device based on the received body data and monitoring results. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee. 
       The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a side view of a mobile infant care device according to an embodiment of the present invention; 
         FIG.  2    is a block diagram of the mobile infant care device according to an embodiment of the present invention; 
         FIG.  3    is a block diagram showing a monitoring system according to an embodiment of the present invention; and 
         FIG.  4    is a block diagram of an infant care system including the mobile infant care device according to an embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS 
     Specific structural and functional descriptions of embodiments of the present invention disclosed in the present specification or application are illustrated for the purpose of describing embodiments according to the present invention, and embodiments according to the present invention may be implemented in various forms and should not be construed as being limited to the embodiments described in the present specification and application. 
     While embodiments according to the present invention are susceptible to various modifications and alternative forms, specific embodiments are shown by way of example in the drawings. However, the present invention should not be construed as being limited to the embodiments set forth herein, but on the contrary, the present invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention. 
     The terms “first” and/or “second” are used to describe various components, but such components are not limited by these terms. The terms are used to discriminate one component from another component. For example, a first component may be called a second component and the second component may be called the first component within the technical spirit of the present invention. 
     When a component is “coupled” or “connected” to another component, it should be understood that a third component may be present between the two components although the component may be directly coupled or connected to the other component. When a component is “directly coupled” or “directly connected” to another component, it should be understood that no element is present between the two components. Further, other representations describing a relationship between components, that is, “between”, “immediately between”, “adjacent to” and “directly adjacent to” should be construed likewise. 
     The terms used in the specification of the present invention are merely used in order to describe particular embodiments, and are not intended to limit the scope of the present invention. An element described in the singular form is intended to include a plurality of elements unless the context clearly indicates otherwise. In the specification of the present invention, it will be further understood that the term “comprise” or “include” specifies the presence of a stated feature, figure, step, operation, component, part or combination thereof, but does not preclude the presence or addition of one or more other features, figures, steps, operations, components, or combinations thereof. 
     All the terms that are technical, scientific or otherwise agree with the meanings as understood by a person skilled in the art unless defined to the contrary. Common terms as found in dictionaries should be interpreted in the context of the related technical writings not too ideally or impractically unless expressly disclosed herein. 
     Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements. 
     Embodiments of the present invention relates to a mobile infant care device for generating shaking in a carrier provided with a space where an infant lies or moves by itself, and intelligently caring for infants, and an infant care system including the same. 
       FIG.  1    is a side view of a mobile infant care device according to an embodiment of the present invention, and  FIG.  2    is a block diagram of the mobile infant care apparatus according to an embodiment of the present invention. 
     Referring to  FIGS.  1  and  2   , the mobile infant care device according to an embodiment of the present invention includes a carrier  100  having an inner space  110  in which an infant is located and including driving wheels  130  provided at the lower part  120 , a monitoring system  200  fixed to the carrier  100  and configured to monitor the state of the infant located in the inner space  110  of the carrier  100 , a driving system  300  for moving the position of the carrier  100  by driving the driving wheels  130 , a communication system  400  for performing wireless communication to transmit a monitoring result of the monitoring system  200  to a user terminal device T or to receive an operation input from the user terminal device T, and a controller  500  for controlling the driving system  300  to move the carrier  100  based on a monitoring result of the monitoring system  200  or an operation input received through the communication system  400 . 
     Specifically, the carrier  100  may have various shapes, but may be hardware in the shape of a general stroller. In particular, the carrier  100  has the bed-shaped inner space  110  in which an infant can lie, and the lower part  120  supporting the inner space  110  includes the driving wheels  130  for allowing the carrier  100  to be movable. Although the driving wheels  130  may be driven by the driving system  300 , they may also be rotatable by external force of the user. 
     The monitoring system  200  is a component fixed to the carrier  100 , and in one embodiment, the monitoring system  200  may be positioned in the inner space  110  of the carrier  100  or positioned above the inner space  110  to monitor the infant from above. 
     The monitoring system  200  may receive sensing data from various sensors which will be described later and monitor the state of the infant by combining the received sensing data. 
     The operation of the driving system  300  is controlled by the controller  500 , and the driving system  300  can generate a driving force for driving the driving wheels  130 . In one embodiment, the driving system  300  may be a motor that receives power to generate a driving force and may include a battery for storing charged power. 
     The communication system  400  is a wireless communication device and may be a device that performs wireless data communication with a short-distance or long-distance terminal or performs data communication with a server S as will be described below. In particular, the communication system  400  may transmit a monitoring result of the monitoring system  200  received from the monitoring system  200  to the user terminal device T and may receive an operation input from the user terminal device T and transmit the same to the controller  500 . 
     A communication network used by the communication system  400  includes both wired and wireless communication networks. For example, a wired/wireless Internet network may be used as a communication network. Here, wired networks include the Internet, a cable network, and a public telephone network (PSTN), and wireless communication networks include CDMA, WCDMA, GSM, Evolved Packet Core (EPC), Long Term Evolution (LTE), WiBro, and the like. The present invention is not limited thereto and may be used, for example, in a cloud computing network under a cloud computing environment, a 5G network, and the like. 
     If the communication network is a wired communication network, an access point within the communication network can access a switching center of a telephone company. In the case of a wireless communication network, data can be processed by accessing an SGSN or Gateway GPRS Support Node(GGSN) operated by a communication company or data can be processed by accessing various repeaters such as a base transceiver station (BTS), NodeB, and e-NodeB. 
     In addition, the communication network may include an access point (AP). Here, the access point includes a small base station, such as a femto or pico base station, which is installed in a building. Of course, the access point may include a short-range communication module for performing short-range communication such as Zigbee and Wi-Fi. The access point may use TCP/IP or real-time streaming protocol (RTSP) for wireless communication. Here, short-range communication may be performed using various standards such as Bluetooth, Zigbee, infrared, radio frequency (RF) such as ultra-high frequency (UHF) and very high frequency (VHF), and ultra-wideband communication (UWB) in addition to Wi-Fi. Accordingly, the access point may detect the location of a data packet, designate a best communication path for the detected location, and deliver the data packet to the user terminal device or server S along the designated communication path. The access point may share multiple lines in a general network environment and includes, for example, a router and a repeater. 
     The monitoring system  200 , the communication system  400 , and the controller  500  according to an exemplary embodiment of the present invention may be implemented by a nonvolatile memory (not shown) that store an algorithm configured to control operations of various components of a vehicle or data related to software commands for executing the algorithm, and a processor (not shown) configured to perform operations which will be described below using data stored in the memory. Here, the memory and the processor may be implemented as separate chips. Alternatively, the memory and the processor may be implemented as a single integrated chip. The processor may take the form of one or more processors. 
     Although specific positions of the communication system  400  and the controller  500  are not indicated, they may be components fixed to the carrier  100 . The communication system  400  and the controller  500  may be connected to transmit/receive signals or data to/from the monitoring system  200  and the driving system  300  and may be located in any part of the carrier  100 . 
     The controller  500  may move the carrier  100  based on the state of the infant according to a monitoring result of the monitoring system  200  or may move the carrier  100  based on an operation input of the user terminal device T input to the communication system  400 . 
     More specifically, upon determining that the infant needs to be cared for based on a monitoring result sensed by the monitoring system  200  or upon reception of an operation input for requesting a call from the user terminal device T, the controller  500  may control the driving system  300  such that the carrier  100   300  moves to a preset position or the position of the user terminal device T. 
     In one embodiment, the controller  500  may control the driving system  300  to move the carrier  100  along a movement path to a preset position or the position of the user terminal device T. 
     Here, the preset position may be a single position or a plurality of positions designated by the user, for example, designated positions inside a building, such as a living room, a kitchen, and a main room. The controller  500  may set a movement path along which the carrier  100  moves to a preset position or the position of the user terminal device T and may control the driving system  300  according to the set movement path. 
     In addition, when there is a plurality of preset positions, the controller  500  may receive a user’s selection through the terminal device T and set a movement path according to the user’s selection or may select one of the plurality of preset positions based on a monitored state of the infant and set a movement path according to the selected result. 
     Alternatively, the controller  500  may receive an operation input for selecting any one of a preset position and the position of the user terminal device T from the terminal device T and set a movement path according to or monitor a movement path according to the user’s selection, or select any one of a preset position and the position of the user terminal device T based on the monitored state of the infant and set a movement path according to the selected result. 
     For example, upon determining that diaper change is necessary for the infant as a result of monitoring of the monitoring system  200 , the controller  500  may set a movement path to a toilet among preset positions. In addition, upon determining that the infant’s body temperature is high as a result of monitoring of the monitoring system  200 , the controller  500  may set a movement path to the position of the user terminal device T instead of a preset position. 
     More specifically, the controller  500  may turn on/off a function of automatically moving the carrier  100  to a preset position or the position of the user terminal device T based on a monitoring result sensed by the monitoring system  200 . When the automatic mode is off, the controller  500  may control the driving system  300  to move the carrier  100  to a preset position or to the position of the user terminal device T only when an operation input for requesting a call is received from the user terminal device T. 
     In addition, upon determining that the infant needs to be cared for as a result of monitoring of the monitoring system  200 , the communication system  400  may transmit a signal to activate a voice listening function in the user terminal device T. In this case, a position at which a movement path along which the driving system  300  will move the carrier  100  is set may be input to the user terminal device T. 
       FIG.  3    is a block diagram illustrating the monitoring system  200  according to an embodiment of the present invention. 
     Referring to  FIG.  3   , the monitoring system  200  includes a camera  210  for photographing the inner space  110  of the carrier  100 , and the monitoring system  200  can monitor the motion, body temperature, or excretion of the infant based on images captured by the camera  210 . 
     The camera  210  includes a general closed circuit television (CCTV) camera  210  or an Internet protocol (IP) camera  210  as a surveillance camera  210 . In addition, the camera  210  may include a pan-tilt-zoom (PTZ) camera  210  capable of panning, tilting, and zooming operations as well as a fixed camera  210 . 
     The camera  210  may monitor the motion of the infant while continuously photographing the infant. In particular, the camera  210  may monitor the presence or absence of the infant, movement or whether the infant is sleeping through a captured image. 
     In addition, the camera  210  may include an infrared camera  210  for sensing the temperature in a captured image. Accordingly, the camera  210  may monitor whether the infant is excreted by sensing the infant’s body temperature or sensing the temperature around the infant’s diaper. In addition, the monitoring system  200  may further include a temperature sensor for sensing the body temperature of the infant. 
     In addition, the camera  210  may sense the illuminance around the infant based on a captured image instead of an illuminance sensor which will be described later. In addition, the camera  210  may capture an image or a photo according to operation input of the user’s terminal and may transmit a captured image or photo of the infant to the user’s terminal or the server S through the communication system  400 . 
     The monitoring system  200  may include a microphone  220  for receiving voice input, and thus the monitoring system  200  can monitor crying of the infant or monitor whether the infant is sleeping based on voice input applied to the microphone  220 . 
     The microphone  220  is a device for receiving a voice and may detect crying of the infant or sound according to sleeping of the infant. 
     In addition, the monitoring system  200  includes a heart rate sensor  230  worn on the infant or a pressure sensor  240  for sensing the pressure of the bottom of the infant, and thus the monitoring system  200  can monitor the heart rate of the infant input through the heart rate sensor  230  and monitor the respiration of the infant sensed through the pressure sensor  240 . 
     The heart rate sensor  230  may be selectively worn on the infant, and in particular, may be worn to be attached to a wrist or ankle of the infant. The heart rate sensor  230  may sense the heartbeat of the infant. 
     The pressure sensor  240  is located on the bottom of the inner space  110  in which the infant is positioned, and in particular, may be located under the infant. The pressure sensor  240  may sense the surface pressure acting on the bottom surface of the inner space  110  of the carrier  100  and sense the respiration cycle of the infant through change in pressure distribution according to periodic respiration of the infant. 
     The monitoring system  200  may include an environmental sensor  250  for sensing at least one of temperature, humidity, fine dust, and illuminance around the infant, and thus the monitoring system  200  can monitor environmental data of an environment to which the infant is exposed, input through the environmental sensor  250 . 
     Here, the environmental sensor  250  is a temperature sensor for sensing the ambient air temperature, a humidity sensor for sensing the humidity of the air, a dust sensor for sensing the concentration of fine dust, or an illuminance sensor for sensing the ambient illuminance to which the carrier  100  is exposed, or a combination thereof. 
     In particular, the environmental data refers to data regarding the environment to which the infant is exposed and may refer to data related to the health of the infant or data related to deep sleep of the infant. 
     In addition, the monitoring system  200  may determine whether the environment is suitable for the infant to be exposed to based on the monitored environment data and may transmit a determination result to the user terminal device T or the server S. 
     The monitoring system  200  includes a gyro sensor  260  for sensing rotational movement, rotational angular velocity or rotational acceleration of the carrier  100 , and thus the monitoring system  200  can monitor whether the carrier  100  is overturned based on the rotational movement, rotational angular velocity, or rotational acceleration of the carrier  100 , sensed by the gyro sensor  260 . 
     The gyro sensor  260  in the form of a chip in which a gyroscope is applied with MEMS technology may sense a rotational angular velocity. Further, the gyro sensor  260  may sense rotational movement or rotational acceleration through integration or differentiation of an angular velocity. The monitoring system  200  may detect whether the carrier  100  is overturned through the rotational movement, rotational angular velocity, or rotational acceleration of the carrier  100  sensed by the gyro sensor  260 . 
     In another embodiment, the monitoring system  200  may monitor a roll, a pitch, etc. of the carrier  100  by including an acceleration sensor. 
     A detection sensor  700  for detecting an obstacle adjacent to the carrier  100  or an obstacle located on a movement path of the carrier  100  may be further included, and the controller  500  may determine a movement path along which the carrier  100  will be moved to a preset position or the position of the user terminal device T based on detection information of the detection sensor  700 , and control the driving system  300  based on the determined movement path. 
     The detection sensor  700  may be mounted on the carrier  100  in a state in which it is disposed toward the outside of the carrier  100  and may detect an obstacle adjacent to the carrier  100  or an obstacle located on a set movement path of the carrier  100 . For example, the detection sensor  700  may be a radar sensor, a lidar sensor, an ultrasonic sensor, or a camera sensor (image sensor). 
     In one embodiment, the detection sensor  700  includes a radar sensor, a lidar sensor, an ultrasonic sensor, or a camera sensor (image sensor), and the controller  500  may determine a movement path along which the carrier  100  will be moved to a preset position or the position of the user terminal device T and control the driving system  300  based on the determined movement path. 
     In particular, when the detection sensor  700  detects that an obstacle is present on the movement path of the carrier  100 , the controller  500  may correct the movement path to avoid the obstacle, and when it is impossible to avoid the obstacle, may transmit warning information to the user terminal device T through the communication system  400 . 
     In another embodiment, a mapping system  800  for performing mapping through simultaneous localization and mapping (SLAM) based on detection information of the detection sensor  700  may be further included, and the controller  500  may determine a movement path of the carrier  100  based on a mapping result of the mapping system  800  and detection information of the detection sensor  700 . 
     Specifically, the mapping system  800  may perform mapping to create a map of the external environment while detecting the position of the carrier  100  based on a simultaneous localization and mapping (SLAM) algorithm. In particular, the carrier  100  may include a position detection sensor for detecting the position of the carrier  100 , such as a GPS sensor or a gyro sensor. It is known that, in the process of implementing the SLAM algorithm, additional sensor information of the detection sensors  700  (an infrared sensor, a radar sensor, a lidar sensor, an ultrasonic sensor, or the like) may be used. 
     When the controller  500  moves the carrier  100  based on a monitoring result of the monitoring system  200  or an operation input received through the communication system  400 , the controller  500  may move the carrier  100  along a movement path based on a map mapped by the mapping system  800 . 
     A speaker  900  that generates a warning sound based on a monitoring result of the monitoring system  200  or provides a pre-stored or input sound based on an operation input received through the communication system  400  may be further included. 
     The speaker  900  may generate a warning sound upon determining that the infant needs to be cared for as a result of monitoring of the monitoring system  200 . In particular, the speaker  900  may generate a warning sound upon determining that urgent care is needed due to a problem in respiration or the heartbeat of the infant, for example, as a monitoring result. 
     In addition, the speaker  900  may provide a pre-stored or input sound based on an operation input received through the communication system  400 . Here, the pre-stored or input sound may be music that helps the infant sleep well, such as a lullaby or classical music. The pre-stored sound may be a user’s voice pre-stored through the microphone  220  or the user terminal device T through recording, and the input sound may be received from the server S or the user terminal device T. 
     An actuator  600  for generating rocking in the inner space  110  of the carrier  100  with respect to the lower part  120  provided with the driving wheels  130  during operation may be further included, and the controller may control the operation of the actuator  600  based on a monitoring result of the monitoring system  200  or an operation input received through the communication system  400 . 
     The actuator  600  may be operated by an electric motor or through a solenoid method. When the actuator  600  operates, rotation of the driving wheels  130  is fixed and thus the inner space  110  positioned at the upper part of the carrier  100  with respect to the lower part  120  fixed to the floor may rock. Rocking may be a rotational motion based on a central axis. 
     In another embodiment, the controller  500  may generate rocking vibration in the carrier  100  by alternately driving the driving wheels  130  in the forward direction and the reverse direction. 
       FIG.  4    is a block diagram of an infant care system including the mobile infant care device according to an embodiment of the present invention. 
     Referring to  FIG.  4   , the infant care system according to an embodiment of the present invention is an infant care system including the mobile infant care device, and includes a user terminal device T that wirelessly communicates with the communication system  400  to receive a result monitored by the monitoring system  200  or to transmit an operation input received from a user, and a server S that receives the monitoring result of the monitoring system  200  from the communication system  400  or the user terminal device T, stores the received monitoring result in a database, and transmits analysis data obtained by comparing the received monitoring result with data pre-stored in the database to the user terminal device T. 
     The user terminal device T may transmit/receive data to/from the communication system  400  of the infant care device through wireless communication, and in particular, receive a monitoring result of the monitoring system  200  from the communication system  400  or transmit an operation input received from the user to the communication system  400 . 
     The user terminal device T may be a communication device such as a mobile phone or a smartphone, or a portable device such as a tablet computer. 
     The server S may be hardware or software in which a database DB for storing data is constructed and may be capable of wireless communication with the communication system  400  and the user terminal device T. Monitoring results of the monitoring system  200  transmitted from the communication system  400  may be continuously stored in the database of the server S. In addition, average monitoring data of infants may be transmitted to the database of the server S through the Internet. 
     In addition, the server S may compare a monitoring result of the monitoring system  200  received through the communication system  400  with data pre-stored in the database to analyze the monitoring result. In one embodiment, the server S may derive graphs of a sleep pattern and health pattern of an infant, an environmental pattern to which an infant is exposed, and the like based on the monitoring results, and compare the graphs with data stored in the database to determine characteristics of the infant. 
     In addition, the server S may receive body data of the infant input by the user using the user terminal device T, and transmit care data regarding care of the infant to the user terminal device T based on the received body data and monitoring results. 
     The body data may be data that can be input from the user, such as a growth period from the birth date of the infant, height, weight, and sex. 
     In addition, the server S may transmit care data that can help in caring for the infant to the user terminal device T based on the received body data and monitoring results. For example, the server S may provide massage tips helpful to the infant based on the growth period of the infant or provide tips on maintaining humidity when the environment to which the infant is exposed is dry as a result of monitoring. 
     According to the mobile infant care device and the infant care system including the same of the present invention, it is possible to continuously monitor the state of an infant on behalf of a guardian, thereby safely securing free time from childcare for the guardian. 
     In addition, it is possible to reduce the labor of the guardian by moving the infant to the guardian and putting the infant to sleep in place of the guardian when the infant needs to be cared for or when the guardian requests it. 
     In accordance with some embodiments of the present invention a mobile infant care device and an infant care system may continuously monitor infants and move them to guardians when they need care. 
     Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.