KR102414722B1 - Healthy-safety complex care system for vulnerable social group - Google Patents

Abstract

The present invention relates to a health safety care system for a vulnerable social group, which detects and collects life information such as temperature, humidity, illumination, gas, and motions, in residential spaces where vulnerable social groups, such as the elderly living alone and the severely disabled, live, monitors the collected life information by persons concerned such as local government welfare centers and life supporters, to respond to situations such as lonely deaths and accidents, and which can be used for welfare projects such as housing improvement projects in the long term. The health safety care system for a vulnerable social group according to the present invention comprises: a management server; a manager terminal; and a plurality of on-site terminals including a sensor module for detecting life information about a residential space where a vulnerable social group lives, a memory storing the life information detected by the sensor module, a communication module for performing data communication with the management server, and an HTTP module for allowing the manager terminal to access and monitor. The plurality of on-site terminals include a plurality of slave on-site terminals for detecting life information in an area in charge, and a master on-site terminal for performing integrated management of life information received from the slave on-site terminals and life information detected in an area in charge thereby.

Description

The health and safety care system for the vulnerable group {Healthy-safety complex care system for vulnerable social group}

The present invention detects and collects living information such as temperature, humidity, illuminance, gas, and motion in a living space where the vulnerable, such as the elderly living alone and the severely disabled, live, and collects the collected living information by local government welfare centers, living support companies, etc. It relates to a health and safety care system for the underprivileged that monitors and copes with situations such as lonely deaths and accidents, and can be used in welfare projects such as housing improvement projects in the long term.

Although economic growth is also an important issue in modern times, voices for welfare expansion are gradually growing due to the development of technology and the development of civilization.

In particular, the continuous demand for research and development of welfare systems for the vulnerable class such as the elderly living alone or the severely disabled, as well as interest in the silver industry and welfare policies for the elderly is growing the most as we enter the era of super-aging.

As a measure to build a social safety net, such as prompt response in case of emergency for the elderly living alone, since 2011, the senior living alone and the senior citizen living alone have been linked to visit the elderly living alone family once a week to support their daily life, and to support their daily life at least twice a week. The elderly care service is being implemented to check the safety of the elderly living alone in real time and to provide a chat service with a safe phone that can make two-way video calls.

Registered Patent 10-1039626 "System and method for managing the elderly living alone", Patent 10-1773524 "Emergency safety information alert module providing monitoring of the monitored condition and vulnerability using the same" as prior art related to the care system for the vulnerable hierarchical management system" and the like have been disclosed in various ways.

1 is a view relating to the registered patent 10-1039626 "System and method for managing the elderly living alone", a plurality of motion detection sensors 10 and human body detection sensors 11, a plurality of motion detection sensors ( 10) and a gateway 20 that receives the detection signal detected by the human body detection sensor 11 and transmits it to the central server 30, and a mobile communication terminal 40 that connects to the central server 30 and monitors the status of the elderly living alone ) is composed of

The prior art of FIG. 1 requires a gateway 20 that collects detection signals detected by a plurality of motion detection sensors 10 and human body detection sensors 11 and delivers them to the central server 30, and the gateway 20 When a problem occurs, the collection and management of detection signals is not possible, and the central server 30 stores and manages detection signals for several elderly living alone, and has a large-capacity processing capacity so that a person concerned can access and monitor the elderly living alone. This is necessary, and there is a risk that the operation of the entire system is stopped (System shutdown) due to a large amount of data usage due to the use of the HTTP communication method, and consequent traffic overload.

The prior art central server 30 requires equipment such as a communication server that communicates with the on-site terminal, a web server that displays an administrator page, a database that stores and manages living information, and a gateway 20 for communication with the central server and Equipment such as L2~L4 switches is also required. And when the number of field terminals increases, the quantity of these devices is also added. And by using multiple equipment, operation and management costs increase, which becomes a factor in the price increase of the terminal.

The prior art requires user authentication such as smartphone application installation and login, and when the field-installed terminal uses wired/wireless Internet, various settings such as router connection information setting and port forwarding in the router are required, and specialized personnel are required for this. .

The present invention is an invention devised to solve the problems of the prior art, and since it does not use various equipment such as gateways, L2~L4 switches, communication servers, web servers, databases, etc., the construction cost is low, and the field terminal is The purpose of this is to provide a health and safety care system for the vulnerable group that stores and manages information and reduces the burden on the management server by serving as a server that allows the person concerned to manage the vulnerable group by accessing the field terminal.

The health and safety care system for the vulnerable class according to the present invention for achieving the above object is

management server;

manager terminal;

A sensor module that detects living information of the living space in which the vulnerable live, and

a memory for storing living information sensed by the sensor module;

a communication module for data communication with the management server;

In the vulnerable class health and safety care system including;

The plurality of field terminals

A number of slave field terminals that detect living information in the area in charge,

It is characterized in that it is composed of a master field terminal for integrated management of the living information transmitted from the slave field terminals and the living information sensed in one's own area.

And when the living information is received from the slave field terminal, the master field terminal transmits the living information received from other slave field terminals and the living information sensed by itself to the corresponding slave field terminals as a response, Living information detected in the field terminal of

The slave field terminal, which fails to receive a response of the living information from the master field terminal a certain number of times, communicates with the management server and reports it,

When it is determined that there is an abnormality in the master field terminal, the management server registers and operates one of the slave field terminals as a new master field terminal,

The sensor module is characterized in that it is composed of two or more types of a temperature sensor, a humidity sensor, a gas sensor, an illuminance sensor and a motion sensor.

The system for health and safety care for vulnerable groups according to the present invention does not require equipment such as gateways, L2 to L4 switches, web servers, communication servers, databases, etc. It is inexpensive to build, and the on-site terminal collects and manages daily life information, and serves as a server that allows related parties to access and monitor, reducing the burden on the management server, so it is sufficient to use a low-spec PC, There is no risk of shutdown of the entire system due to communication between the master field terminal and the slave field terminal. It is operated so that there is no failure in monitoring and management of the vulnerable, the field terminal can be operated only when the user performs the power supply operation, and the administrator only needs to input the monitoring URL that changes quarterly through the web browser in the administrator terminal. It is convenient as user intervention is minimized in the device settings of the system, and the communication between the management server and the field terminal uses a binary protocol to minimize data usage to reduce communication costs, and the administrator's monitoring page uses HTTP to separate applications. It is a very useful invention for industrial development as a system that does not need to be installed and has increased management convenience.

1 is a block diagram of a management system for the elderly living alone according to the prior art.
Figure 2 is a schematic configuration diagram of the health and safety care system for the vulnerable class according to the present invention.
3 is a block diagram of a field terminal according to the present invention.
4 is a flowchart for setting an operation mode in a field terminal;
5 is a flowchart of changing the operation mode when a problem occurs in the master field terminal.
6 is a perspective view showing the mechanical structure of a field terminal;
7 is a view for explaining a means for preventing loosening of the nut.

Hereinafter, the health and safety care system for the vulnerable class according to the present invention will be described in more detail with reference to the drawings.

Prior to explaining in more detail with respect to the health and safety care system for the vulnerable class according to the present invention,

Since the present invention can have various changes and can have various forms, implementation examples (態樣, aspects) (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference sign, particularly the number of the tens and one digit, or the reference numerals having the same tens, one, and alphabet, indicates a member having the same or similar function, and, unless otherwise specified, each The member indicated by the reference sign may be regarded as a member conforming to these standards.

In addition, in each drawing, components are expressed in exaggeratedly large (or thick), small (or thin) or simplified in size or thickness in consideration of convenience of understanding, but the protection scope of the present invention is limited by this. it shouldn't be

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as comprises or consists of are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

As shown in FIG. 2 , the health and safety care system for vulnerable groups according to the present invention includes a management server 10 , a manager terminal 20 , and a plurality of field terminals 30 .

The management server 10 manages the list of field terminals 30 installed in the management area, and minimizes the role of field terminals 30 by registering master and slave to operate. Therefore, the management server 10 may use a low-spec PC.

However, if necessary, the living information sensed by the field terminals 30 can be stored and managed, and related persons such as welfare workers, living supporters, or family members can access and monitor the vulnerable.

For example, when there are the first to ninth vulnerable groups in the area managed by the management server 10, and seven field terminals 30 are installed in the living space where the first vulnerable group resides, the management server (10) stores and manages information of each vulnerable group (that is, the first to ninth vulnerable groups) (information is information that does not violate the 'Personal Information Protection Act'), and the residence of each vulnerable group Information such as unique ID, IP, operation mode (master mode / slave mode), communication time for each field terminal 30 installed in the space (eg, 7 field terminals installed in the living space of the first vulnerable class) store and manage

The management server 10 may store and manage the living information detected in the field terminal 30 of each vulnerable class, and analyze the stored living information to cope with an emergency situation, in this case, a large-capacity processing capability It is necessary and may cause problems such as interruption of operation due to overload, so it may be desirable to have the on-site terminal 30 take charge of these functions, and the management server 10 is determined as an emergency by the on-site terminal 30 It can store and manage only life information and perform the minimum function of notifying the concerned person.

The manager terminal 20 is a terminal used by related persons such as welfare workers, living support workers, and family members. The manager terminal 20 does not use a separate application, but receives a monitoring URL that is changed quarterly for security and uses a web browser. It is possible to access and monitor the field terminal 30 through the.

The manager can access the field terminal 30 and check the living information and the status information of the field terminal 30 to monitor the vulnerable class and the state of the living space, the field terminal 30, and the like.

The on-site terminal 30 is installed in the living space where the vulnerable class lives, detects various kinds of living information of the residence, stores and manages the sensed living information, and allows a person concerned to access and monitor the vulnerable group. At this time, one on-site terminal is installed in one household of the vulnerable group (a plurality of on-site terminals can be installed if necessary), and 8 households (ie, eight on-site terminals) become a group, so that one of the eight on-site terminals is the master. They become field terminals and the rest become slave field terminals.

Referring to FIG. 3 , the on-site terminal 30 communicates with a sensor module 31 for detecting living information of a living space, and data communication with the management server 10 and the manager terminal 20 through the Internet network. The module 32, the transmission/reception module 33 for data communication between the on-site terminal 30, the OTA APP 34 for downloading the program from the management server 10 and updating the on-site terminal 30; The memory 35 for storing information, the HTTP module 36 that allows the manager terminal 20 to access and monitor the living information and the status of the field terminal 30, and the transmission/reception frame type and transmission/reception time of data It is made by including a control unit 37 that determines and analyzes the stored life information and a response according to the analysis result is processed, and an OS 38 that controls the operation of the field terminal 30 .

The sensor module 31 includes a temperature sensor 311 for detecting the temperature of the living space, a humidity sensor 312 for detecting humidity, gas sensors 313 and 314 for detecting the type and concentration of gas in the air, and illuminance. An illuminance sensor 315 for sensing, a motion sensor 316 for sensing the movement of an object, etc. may be used. The sensor module 31 must be composed of two or more types of these various types of sensors to effectively monitor and manage the vulnerable group. The gas sensors 313 and 314 are preferably capable of detecting the concentrations of carbon dioxide (CO2) and total volatile organic compounds (tVOC) so as to detect a fire or city gas leakage.

As the sensor module 31, the motion sensor 316 is for detecting the movement of a resident of the living space. The single-shot motion of a vehicle or passerby reflected by the window and the periodic motion of a fan periodically rotating in the living space are related to the resident. As a motion corresponding to no noise, the motion sensor 316 excludes motion (ie, life information) detected through an analysis algorithm even if such noise motion is detected.

When the field terminals 30 are powered on (ie, booted), they access the NTP server to acquire current time information, and synchronize the time.

The field terminals 30 synchronized by acquiring the current time information access the management server 10, register their own ID and IP, set the operation mode, and the IP of the master field terminal 30 and the detected life Acquire time information to transmit information.

One of the plurality of field terminals 30 is operated as the master field terminal 30M, and the rest is operated as the slave field terminal 30S.

In the initial stage of installation of the field terminals 30, the field terminal 30 connected to the management server 10 is first registered as the master field terminal 30M, and the field terminal 30 connected thereafter is set as a slave field terminal. (30S) can be registered.

When a failure occurs in the master field terminal 30M, the management server 10 may select and manage the order of field terminals 30 to be newly registered as the master field terminal 30M.

The slave field terminal 30S calculates the living information sensed in real time by the sensor module 31 as an average value for a certain period of time (eg, 10 minutes), stores it in the memory 35, and determines the living information stored as the average value. It is transmitted to the master field terminal 30M at the transmission time.

The master field terminal 30M calculates the living information sensed in real time by the sensor module 31 as an average value for a predetermined time (eg, 10 minutes) and stores it in the memory 35, and the slave field terminal 30S The transmitted living information is stored in the memory 35 . And when living information is received from one of the slave field terminals 30S, in response to it, the living information calculated and stored and the living information of other slave field terminals 30S received and stored are stored in the corresponding slave field terminal. (30S).

In this way, the master field terminal 30M receives and stores the living information from the slave field terminals 30S, and the stored living information of other slave field terminals 30S is received as a response to the slave field terminal 30S. By transmitting, all living information sensed is shared by a plurality of field terminals 30 .

It is preferable that the memory 35 of each field terminal 30 has a capacity to store shared living information for two years or more.

The present invention is a method of communicating living information between the master field terminal 30M and the slave field terminal 30S, there is no fear of service interruption of the system due to traffic overload, and sharing living information to any field terminal 30 Even if a problem occurs, the living information sensed by the field terminal 30 in which the problem has occurred can be checked through another field terminal 30 .

4 shows a procedure for setting the operation mode in the field terminal 30 .

When the power is supplied and booting is completed (S11), the on-site terminal 30 connects to the NTP server through the LTE network (S12), obtains the current time (S13), and synchronizes the time (S14).

Next, the field terminal 30 transmits its own ID to the management server 10 (S15), and the management server 10 registers the received unique ID and received IP (S16), and uses the unique ID Inquire and determine the operation mode, determine the transmission time of living information (S17), transmit the determined operation mode and transmission time, and IP information of the master field terminal 30M to the corresponding field terminal 30 (S18), The field terminal 30 is operated by applying the received operation mode.

Here, the operation mode is divided into a master mode and a slave mode, and the management server 10 determines that the field terminal 30 first accessed from the plurality of field terminals 30 in step S16 is the master mode, and then connects The on-site terminal 30 to be determined is a slave mode.

5 shows a procedure for changing the operation mode when a problem occurs in the master field terminal 30M, that is, a procedure for replacing the master field terminal 30M.

The slave field terminal 30S transmits the living information it senses to the master field terminal 30M (S21), and the master field terminal 30M transmits its own living information and the life of other slave field terminals 30S. When information is transmitted as a response (S22), a communication failure occurs in the master field terminal 30M, and the response of the master field terminal 30M to the living information transmission (S23) of the slave field terminal 30S is not received ( S24), the slave field terminal 30S adds the living information that has failed to be transmitted to the transmission list (S25), and if the transmission of the living information fails even after three retries (S26), communication with the master field terminal 30M The failure packet is transmitted to the management server 10 (S27), and the management server 10 checks and, if it is confirmed that there is a failure, changes and registers the master field terminal 30M (S28), and sends it to all field terminals 30. A packet related to the operation mode change is transmitted (S29), and the field terminals 30 apply the transmitted operation mode change (S30). In step S28, the management server 10 can change and register the slave field terminal 30S, which has transmitted the communication failure packet, to the master field terminal 30M, and select the slave field terminal 30S of the pre-selected sequence. It is also possible to register a change to the master field terminal (30M).

When the communication failure of the master field terminal 30M in which the communication failure occurred is recovered, the field terminal 30 transmits its own ID to the management server 10 (S32), and the management server 10 receives the unique ID to inquire and determine the operation mode (S33), and transmit information such as the determined operation mode of the field terminal 30 and the IP of the master field terminal 30M to the field terminal 30 (S34), and the corresponding The terminal is changed to the transmitted operation mode and operated (S35). Here, since the master field terminal 30M has been replaced, the operation mode becomes the slave mode.

The field terminal 30 changed from the master mode to the slave mode transmits the sensed living information to the newly replaced master field terminal 30M (S36), and responds to the living information of the master and other slave field terminals 30S After receiving (S37), the living information of the other field terminal 30 is requested during the communication failure period (S39) and received as a response (S39). Thus, even if the operation mode is changed due to a communication failure, sharing of living information by storing the living information of all field terminals 30 in the memory 35 is implemented. That is, the living information stored in the memory 35 of the field terminals 30 is synchronized.

6 shows an example of the field terminal 30 mounted on the cradle 50 .

The field terminal 30 includes a front case 41 and a rear case 42 that are assembled and coupled to each other.

A motion sensor 316 and an illuminance sensor 315 are provided on the upper portion of the front case 41, and an LED 45 indicating an operating state is provided below it, and the concentration of carbon dioxide or total organic compound is provided below it. Gas sensors 313 and 314 for sensing are provided, and a temperature sensor 311 and a humidity sensor 312 are provided at the bottom.

The rear case 42 is provided with a coupling portion to which the cradle 50 is detachably coupled.

A PCB on which a communication module 32 , a memory 35 , an HTTP module 36 and the like are mounted is provided inside the main body.

Corners of the front case 41 and the rear case 42 are fastened using a bolt (B) and a nut (N).

The present invention introduces a nut loosening preventing means for preventing the nut (N) from being unintentionally loosened, so that the front case 41 and the rear case 42 are firmly fastened.

Referring to Figure 7, the nut loosening preventing means,

Ratchet toothed portion (C31) formed on the bottom of the receiving groove (C32) formed around the screw hole (C3) formed in the rear case 42,

Doedoe elastically supported in the direction of the ratchet toothed portion (C31) inside the nut (N), the binding portion protruding and protruding from the front side of the nut (N) (upper portion based on FIG. (N11) and a ratchet bar consisting of a pushing portion (N13) extending to the rear (lower part of Fig. 7) of the binding portion (N11) and having a cam groove (N12) inclined upward from the inside to the outside on one surface ( N1),

The nut (N) is elastically supported toward one of the hexagonal surfaces of the nut (N) inside the nut (N), the pressing portion (N21) protruding and protruding from the hexagonal surface, and extending to the lower portion of the pressing portion (N21), the pressing portion and a pressing bar N2 composed of a pressing part N23 having a pressing protrusion N22 fitted to the cam groove N12 on the other surface in a direction perpendicular to one surface of the (N13).

The ratchet toothed portion (C31) protrudes to the rear while the teeth having an inclined surface inclined upward in the tightening direction of the nut (N) are arranged in a circular shape along the circumference of the screw hole (C3).

The ratchet bar (N1) is fitted on the protruding groove formed on the front surface of the nut (N), the rear end of the pushing part (N13) is supported by the first spring (N3), the binding part (N11) is the nut ( It protrudes to the front of N).

The press bar (N2) is fitted on the protruding groove formed in one of the hexagonal surfaces of the nut (N), the lower end of the pressing part (N23) is supported by the second spring (N4), the pressing part (N21) is The nut (N) protrudes from the hexagonal surface, and the pressing portion (N21) is formed in a hemispherical shape.

Therefore, when the nut (N) is tightened to the bolt (B) and the binding part (N11) comes into contact with the ratchet toothed part (C31), the ratchet bar (N1) protrudes back and forth while the binding part (N11) is a ratchet tooth After being completely tightened past the portion C31, the nut N is not loosened by vibration or the like as the coupling portion N11 is caught on one of the teeth of the ratchet toothed portion C31.

And when the spanner is fitted to the hexagonal surface with the press bar N2 to loosen the nut N, the press bar N2 is inserted while the press part N21 is pressed by the spanner, and at this time, the press part As (N23) descends vertically, the pressing protrusion (N22) descends and pushes the inclined surface of the cam groove (N12) to push the pushing part (N13) to the rear side, and thus the ratchet bar (N1) moves backward and the As the binding portion N11 is drawn into the nut N, it is separated from the ratchet toothed portion C31, and the nut N can be easily loosened with a spanner.

In the above description of the present invention, the health and safety care system for the vulnerable class having a specific shape and structure has been described with reference to the accompanying drawings, but the present invention is capable of various modifications and changes by those skilled in the art, and these modifications and changes are It should be construed as belonging to the protection scope of the invention.

10: management server 20: administrator terminal
30: field terminal 30M: master field terminal
30S: slave field terminal 31: sensor module
32: communication module 33: transmit/receive module
34: OTA APP 35: memory
36: HTTP module 37: control unit
38: OS 41: front case
42: rear case 50: cradle

Claims (4)

management server 10;
manager terminal 20;

A sensor module 31 that detects living information of the living space where the vulnerable live, and
a memory 35 for storing living information sensed by the sensor module 31;
a communication module 32 for data communication with the management server 10;
In the vulnerable group health and safety care system including;

The plurality of field terminals 30 are
A plurality of slave field terminals (30S) that detect living information in the area in charge,
It is composed of a master field terminal (30M) for integrated management of living information transmitted from the slave field terminals (30S) and living information sensed in one's own area,

When the living information is received from the slave field terminal 30S, the master field terminal 30M responds to the living information transmitted from other slave field terminals 30S and the living information sensed by the slave field terminal 30S as a response. By transmitting to the field terminals (30S), the living information sensed in the plurality of field terminals (30) is characterized in that it is shared,

The slave field terminal 30S, which has failed to receive a response of living information from the master field terminal 30M a certain number of times, communicates with the management server 10 and reports it,
When it is determined that there is an abnormality in the master field terminal 30M, the management server 10 registers and operates one of the slave field terminals 30S as a new master field terminal 30M. safety care system. The method of claim 1,
The field terminal 30 is composed of a front case 41 and a rear case 42 that are assembled and combined with each other,
The front case 41 and the rear case 42 are fastened using a bolt (B) and a nut (N),
The nut (N) is provided with a nut loosening preventing means to prevent unintentionally loosening,

The nut loosening prevention means,
Ratchet toothed portion (C31) formed on the bottom of the receiving groove (C32) formed around the screw hole (C3) formed in the rear case 42,
Doedoe elastically supported in the direction of the ratchet toothed portion (C31) inside the nut (N), the binding portion (N11) protruding and protruding from the front of the nut (N) so as to be hooked on the ratchet toothed portion (C31), and the binding The ratchet bar (N1), which is connected to the rear of the part (N11) and is composed of a pushing part (N13) having a cam groove (N12) inclined upward from the inside to the outside on one surface,
The nut (N) is elastically supported toward one of the hexagonal surfaces of the nut (N) inside the nut (N), the pressing portion (N21) protruding and protruding from the hexagonal surface, and extending to the lower portion of the pressing portion (N21), the pressing portion A press bar (N2) composed of a pressing part (N23) having a pressing protrusion (N22) fitted to the cam groove (N12) on the other surface in a direction perpendicular to one surface of (N13),
The ratchet toothed portion (C31) protrudes to the rear while the teeth having an inclined surface inclined upward in the tightening direction of the nut (N) are arranged in a circular shape along the circumference of the screw hole (C3),
The ratchet bar (N1) is fitted on the protruding groove formed on the front surface of the nut (N), the rear end of the pushing part (N13) is supported by the first spring (N3), the binding part (N11) is the nut ( It protrudes to the front of N),
The press bar (N2) is fitted on the protruding groove formed in one of the hexagonal surfaces of the nut (N), the lower end of the pressing part (N23) is supported by the second spring (N4), the pressing part (N21) is It protrudes to the hexagonal surface of the nut (N), and the pressing part (N21) is formed in a hemispherical shape,
By tightening the nut (N) to the bolt (B), when the binding part (N11) comes into contact with the ratchet toothed part (C31), the ratchet bar (N1) protrudes back and forth while the binding part (N11) is a ratchet toothed part After being completely tightened past (C31), the nut (N) is not loosened by vibration as the binding portion (N11) is caught on one of the teeth of the ratchet toothed portion (C31). safety care system. delete 3. The method according to claim 1 or 2,
The sensor module 31 is a health and safety care system for the vulnerable group, characterized in that it is composed of two or more types of a temperature sensor, a humidity sensor, a gas sensor, an illuminance sensor, and a motion sensor.

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