WO2017179747A1 - System for devices to exchange mutual signals, thereby recognizing each other and exchanging particular data - Google Patents

Abstract

The present invention relates to a system for devices to exchange mutual signals, thereby recognizing each other and exchanging data, the system comprising a server (300) connected to an external network, an installation-type terminal (100) connected with a terminal by using short-range communication, and a stand-alone terminal (200) wirelessly connected with the installation-type terminal (200), wherein the installation-type terminal (100) comprises an external communication device (1003) directly connected to the external server and an internal communication device (1004) connected only with the stand-alone terminal (200), and the stand-alone terminal (200) comprises an internal communication device (2003) for communicating with the installation-type terminal (100) and a sensor (2004) for capturing information on the surroundings of the stand-alone terminal (200), such that, when the stand-alone terminal (200) comes within the recognition range of the installation-type terminal (100), the stand-alone terminal (200) transmits pre-stored identification information to the server via the installation-type terminal, and, in case of successful authentication, the installation-type terminal (100) and the stand-alone terminal (200) are configured to be in a communicatable state, the operation of the stand-alone terminal (200) is controlled by the installation-type terminal (100), and the information sensed by the stand-alone terminal (200) is transmitted to the server via the installation-type terminal (100) and stored therein.

Description

System that exchanges signals and recognizes devices and sends specific data to each other

The present invention relates to a system for exchanging signals and exchanging specific data with each other.

The present invention is an IOT module terminal that performs authentication or command based on a mutual signal, and recognizes an independent terminal registered by an IOT module terminal and an installed terminal as a device capable of controlling mutual signals. It relates to a method for authenticating a terminal based on.

To this end, the installed terminal 100 sets a signal rule and stores a communication rule or a signal in a corresponding memory, and when the standalone terminal 200 is at a distance that can be recognized later by the installed terminal, the installed terminal recognizes the standalone terminal. It can be controlled, and can not be controlled if the distance is not recognized. When the installed terminal recognizes the standalone terminal and starts to operate, the standalone terminal stores information such as a path or a location that the standalone terminal moves through the server 300, and such information can be checked at any time when the user requests it. . At this time, if there is a lot of information on the corresponding terminal, the specific terminal cannot recognize which location the terminal recognizes. Therefore, when setting the signal rule, the user can match the information of the corresponding terminal and store it based on the communication signal or packet signal. It relates to an authentication method that can control.

When the standalone terminal 200 enters a range recognized by the installed terminal 100, information of the standalone terminal is transmitted. After that information is transmitted through the server, the information is authenticated through the authentication module of the server. When the authentication module is approved, the installed terminal 100 may control the standalone terminal 200 when storing the corresponding authentication information.

At this time, if the corresponding information is requested through the authentication module of the server, but is not approved, the installed terminal 100 may prevent the operation of controlling the stand-alone terminal is not executed.

  Currently, beacon-related communication technology, Bluetooth-based communication technology, and WSN (wireless sensor network) -based wireless sensor network-related communication technologies exist.

The existing WSN (Wireless Sensor Network) is a wireless network composed of unique devices that use sensors to monitor physical or environmental conditions.It is a technology for connecting to sensor terminals.However, this technology is a technology related to server authentication. Beyond monitoring, it is a technology that controls other independent devices to request necessary data and sends related data to a server.

 In addition, the technology related to beacons may be similar, but beacon technology transmits the information to the server by accessing and recognizing the terminal where the beacon is installed, and the beacon was not able to communicate with each other.

 Among the similar technologies, there are wireless communication technologies such as Bluetooth and Wi-Fi, which also allow the device having the above technology to recognize through another terminal and then automatically recognize when the other terminal enters the communication range. It does not serve to send the server to the server. In other words, compared to simple authentication, an installed or stand-alone (IOT) terminal using this technology recognizes the unique ID of another stand-alone terminal that is installed in a physical or environmental space, and is approved by the authentication server based on this. It is characterized by controlling the operation.

In this case, the installed terminal should be installed in a specific space and transmit a signal within a specific range.If the standalone terminal comes within the signal range, the installed terminal requests a unique ID from the standalone terminal, and the installed terminal authenticates the unique ID of the standalone terminal. After approval, the independent terminal transmits a control signal, and the stand-alone terminal receiving the control signal operates the installed terminal.

If a standalone terminal does not have a unique ID or is not authorized through the authentication server, the installed terminal does not transmit a control signal.

The standalone terminal transmits data generated from the sensor to the server based on the received control signal.

 In other words, the technology of the present invention can recognize the unique ID by the recognition between the installation or stand-alone (IOT) terminal by the automatic ID authentication, the authentication information can be set by the user can change from time to time, IOT terminal There is a technical difference that can be set by the user so that they can be controlled at any time.

To this end, the installed IoT terminal 100 is installed in a physical and environmental place, and the standalone IoT terminal 200 is mobile and mutually recognizes when two terminals reach a specific area and distance, and transmits a unique ID of the standalone terminal to the installed terminal. When the installation type terminal transmits a unique ID to the authentication server 300 and receives the approval data, the standalone terminal sends a control signal to the standalone terminal, and after that, the standalone terminal receiving the control signal collects data through the installed type terminal server (300). ) So that users can see and control it at any time.

Conventionally, there is a system like Secom, but such system is focused on simple access control or installed in a designated CCTV area and can provide only one-way video screen. Acquisition is difficult and requires a system to acquire more complex and specific information

The present invention has been made in order to achieve the object as described above, as an IoT terminal for performing authentication or command based on the mutual signal based on the communication signal or packet signal to the stand-alone terminal registered in the IoT terminal and the installed terminal or server The present invention relates to a method for controlling a standalone terminal by acquiring a unique ID and approval of an authentication server. In order to solve the present problem, a method for authenticating a standalone terminal with an installed terminal is provided through a communication signal.

In order to achieve the object as described above, a system for exchanging data by exchanging signals with each other by exchanging signals with each other, an installation type terminal 100 connected with a server 300 connected to an external network by using a short-range communication with a terminal And a standalone terminal 200 that is wirelessly connected to the installable terminal 100. The installable terminal 100 has an internal communication connected only to an external communication device 1003 and a standalone terminal 200 directly connected to an external server. The device 1004 includes a standalone terminal 200 including an internal communication device 2003 for communicating with the installed terminal 100 and a sensor 2004 for capturing information around the standalone terminal 200. When the 200 is within the recognition range of the installed terminal 100, the standalone terminal 200 transmits the previously stored authentication information to the server through the installed terminal. If the installation terminal 100 and the stand-alone terminal 200 is set to a communication state and the operation of the stand-alone terminal 200 is controlled by the installation terminal 100 and the information sensed by the stand-alone terminal 200 is installed terminal ( It is delivered to the server through 100) and stored.

In addition, the installation terminal 100 is connected to the external network at the first installation and accesses the installation terminal 100 with the information specified by the administrator to authenticate the installation terminal 100 to the server.

The external communication device can be replaced with a modular one, and the sensor device of a standalone terminal can also be replaced with a modular one.

The authentication information of the standalone terminal is destroyed after a certain time and a certain number of times.

According to the above configuration, it is possible to provide a system capable of controlling other devices by mutually recognizing devices through communication in a specific space from the outside.

In the case of using the present invention, the logistics system can store detailed information in a specific place beyond simple control, and can obtain direct interaction and security information of users having B in a special place such as a conference, a school, or a museum. Conventionally, there is a system using a smart phone, but the smart phone can be changed at any time even if the above functions have been developed by a smart phone manufacturer. It is possible to overcome this limitation when using a system such as the present invention, since information was automatically collected through a specific terminal or device, but now the unique MAC information has not been obtained from other devices and Android will be blocked in the future. .

1 to 8 show an embodiment according to the present invention.

A system for exchanging signals by exchanging signals with each other by exchanging signals, wirelessly with the installation terminal 100 and the installation terminal 100 connected by using a short-range communication with a server 300 and a terminal connected to an external network. It includes a stand-alone terminal 200 connected to the installation terminal 100 includes an external communication device 1003 and an internal communication device 1004 connected only to the stand-alone terminal 200 is directly connected to an external server and the stand-alone terminal The terminal 200 includes an internal communication device 2003 for communicating with the installed terminal 100 and a sensor 2004 for capturing information around the standalone terminal 200. The standalone terminal 200 passes the pre-stored authentication information to the server through the installable terminal when it is within the recognition range of the installable terminal 100 and the standalone terminal. The device 200 is set in a communicable state and the operation of the standalone terminal 200 is controlled by the installed terminal 100 and the information sensed by the standalone terminal 200 is transmitted to the server through the installed terminal 100 and stored. .

The present invention relates to a method for enabling mutual control of devices by mutually recognizing devices through communication within a specific space based on mutual signals. More particularly, the present invention relates to a communication signal through an IoT terminal capable of transmitting mutual signals. An IoT terminal that executes commands through authentication based on an IoT terminal, which is conveniently distinguished between an installed IoT terminal and a standalone IoT terminal, and provides a communication signal or packet signal to a standalone IoT terminal registered by a user in a server or an installed IoT terminal. The present invention relates to a method of controlling a standalone terminal by acquiring a unique ID based on the approval of the authentication server.

IoT terminals for configuring the present invention are divided into an installation terminal and a stand-alone terminal,

The installation terminal 100 is composed of a data processing device 1001, a communication device 102 and a storage device 105,

At this time, the communication device 102 is composed of an external communication device 1003 and an internal communication device 1004. The external communication device 1003 can be exchanged and replaced according to the conditions of the installation space, and another module can be used according to the data transmission method that can exchange data wirelessly such as WIFI module, 3G CDMA, LTE-M, LORA, etc. have.

In addition, unlike the Wi-Fi wireless router, the installable terminal can not be connected to various networks at the same time, and unlike the Wi-Fi and the general gateway, only the stand-alone terminal B approved by the administrator can be connected but does not store information about B. This is different from storing the MAC address of the device to which the router is connected. In addition, when installing the WiFi and LoRA module, an AP or gateway device must be additionally installed, and the internal communication device is composed of WiFi and BLE network networks.

The installable terminal A cannot be set or modified by the user, but the general user can not set or control the terminal in any form, but can be set only by the administrator, and when the user installs the installable terminal directly in his space, Only settings for the same external communication device can be made. In other words, the installed terminal allows the user to install in a space and access the nearby WIFI AP. The user can access the installed terminal (A) with the ID and password specified by the administrator and configure the connection with the WIFI AP. Other communication means currently used may be used.

The standalone terminal 200 includes a data processing device 201, a storage device 202, an internal communication device 203, and a sensor device 204.

In this case, the internal communication device may perform mutual communication with the internal communication device 1004 of the installed terminal 100 and the internal communication device 203 of the independent terminal 200.

In addition, the server for authentication and information transfer to the user and to store the information of each terminal includes an authentication server 201 for controlling mutual authentication; Wow

A data server 302 for storing the authenticated information and the status of the standalone terminal received from the installed terminal; Wow

Characterized in that the application server 303 for transmitting and receiving the control data or status information at the request of the user.

Stand-alone terminal (B) is not connected to the AP, routers, etc., but is connected only to the installed terminal (A) for this purpose can be connected to each other only in the form of a packet for mutual recognition of the two terminals for authentication approval between the installed terminal and the stand-alone terminal. The table below shows an example of a data packet used between A-B.

Start Bit	Authentication ID	Control code	Certification Request Date	Approval or not	Approval date	End bit
4 digits	16 digits	4 digits	14 digits	2 digits	14 digits	4 digits

In addition, B is responsible for collecting data to be sent to the server by the sensor installed.

After installation, if the user registers the authentication information of the standalone terminal (B) in advance through the authentication server, it is automatically recognized between the A and B terminals without additional user or administrator's work, and is authenticated to the server and signals the operation control signal of B Pass it to make B work. At this time, the user registers the certification approval information for B on a regular basis according to one-time or period. User authentication information is not registered, and B who subsequently accesses A cannot be authenticated.

Existing devices such as Bluetooth and Wi-Fi are connected to a user's terminal and a terminal such as Bluetooth and Wi-Fi with occupational certification information on a terminal (smartphone, PC, tablet) that the user is using, while the present invention provides a server. There is a difference in registering authentication approval information for the terminal, not the authentication information of the own terminal.

Bluetooth, Wi-Fi, etc., once the user registers the communication between the devices after the user is continuously connected before deleting the authorization information of the terminal, such as a smartphone or PC directly used in the present invention, the first time the user through the server After inputting information about one-time or recurring approval over time for three different terminals, terminal B approval is made according to the registered information, and then automatically deleted from the server.

If Bluetooth and Wi-Fi are set up to connect one's own terminal with another device, the present invention provides a user to send information such that a third terminal B, not his own terminal, is connected with another device A, and is not continuously approved by registration once. The difference is that authentication information is deleted from the server after a certain time and number of times when B is connected.

In the technical example of the present invention, when the standalone terminal moves to the reception area of the installed terminal, the installed terminal recognizes the standalone terminal and the standalone terminal transmits and receives the unique ID to the installed terminal. Thereafter, the provided unique ID makes an ID authentication request through the server, and the authentication server in the server determines whether to approve and transmits it to the installed terminal. In this case, if the unique ID of the standalone terminal is approved by the server, the installed type terminal may store the corresponding information and send a control signal to the standalone terminal for control.

In this case, the standalone terminal is provided with the unique ID, and if the installed terminal provides information to the server and does not authenticate the server, the installed terminal is provided with the corresponding information, and the standalone terminal does not have any control. At this time, the stand-alone terminal and the installed terminal has a unique ID of each other, it can be mutually confirmed and can be confirmed only one side as shown in the above example.

As a general use example of the present invention, when a user arranges a space such as a house or an office, or protects an object, an animal, or a person, a user can confirm the theft or damage of something in the space when requested by a third party. We can come up with a way to make it work. That is, a third party can access a specific app in the vicinity of the space and call the user so that the third party can enter the space, and the second person who enters the space attaches a specific device arranged by the user to the body. It is characterized in that to be able to perform the instructions.

At this time, the specific terminal should be paid or worn by a third party, and when the independent terminal is worn, the corresponding wearing information is transmitted to the user. At this time, if the third party did not wear, the information is transmitted to the user or the corresponding alarm sounds so that the third party can wear.

Otherwise, from now on, the loss and damage can be held by the third party. This can eliminate not only the management of third parties, but also the unwarranted suspicion that third parties may face.

If a third party wears the standalone terminal and enters a specific area set by the user, the installed terminal installed in the specific space recognizes the standalone terminal, and the terminal starts to operate.

From this time, the contents moved by the third party and the contents indicated by the user are transmitted to the server through the installed terminal.

In this case, when the third party leaves the space, the time when all the third parties entered and exited and the movement route is transmitted to the server through the terminal and the corresponding information is provided to the user.

In addition, the installation type terminal does not include information or authentication information about the standalone terminal after authentication at the time of initial installation, and is stored only in the server. When the standalone terminal receives the authentication approval confirmation message from the server by recognizing the standalone terminal, Since the information obtained from the standalone terminal is acquired and the control right is also transmitted to the server without being stored in the installed terminal, the risk of information leakage or hacking in the middle is reduced.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a terminal for implementing the present invention. An IoT terminal for configuring the present invention is classified into an installation terminal and a stand-alone terminal, and the installation terminal 100 includes a data processing device 1001 and a communication device. 102 and the storage device 105, the communication device 102 is composed of an external communication device 1003 and the internal communication device (1004).

The standalone terminal 200 includes a data processing device 201, a storage device 202, an internal communication device 203, and a sensor device 204. In the storage device of the standalone terminal, a unique ID of the standalone terminal and a unique communication ID such as network information are stored, and the information can be set remotely by the user.

In this case, the internal communication device may perform mutual communication with the internal communication device 1004 of the installed terminal 100 and the internal communication device 203 of the independent terminal 200.

In addition, the server for authentication and information transfer to the user and to store the information of each terminal includes an authentication server 201 for controlling mutual authentication; Wow

A data server 302 for storing the authenticated information and the status of the standalone terminal received from the installed terminal; Wow

Characterized in that the application server 303 that transmits the received data and control information or status information at the request of the user.

2 illustrates an example of a flow of communication signals for each terminal module.

As an example for achieving the present invention is an illustration of the flow of communication signals for each terminal and the communication method with the server.

The internal communication device 1004 of the installed terminal 100 and the internal communication device 203 of the independent communication module exchange signals with each other, wherein the communication signal is a mutual signal when the installed terminal or the independent terminal can recognize the communication signal. Can be exchanged. Thereafter, the internal communication device of the installed terminal stores the unique ID of the communication signal of the standalone terminal in the storage device 105, and the stored information is transmitted to the authentication server 301 of the server 300 through the external communication device 1003. It is transmitted. After that, the authentication server authenticates the corresponding information. In this case, the authentication may be performed as YES / NO. That is, if the authentication is the information registered in the server, the authentication server matches the ID information of the stand-alone terminal stored in the storage device through the external communication device 1003 of the installed terminal 100, the information is provided. If it is correct, the internal communication device 1004 may enable the independent terminal to operate through the internal communication device 203 of the independent terminal 200. In this case, the storage device may be a mobile terminal and a sensor device 2004 through a processing device. The standalone terminal can be controlled.

Since the stand-alone terminal 200 is operated through the internal communication device 203 through the internal communication device 1004 and the storage device 105 and the external communication device 1003 of the installed terminal 100 through the server ( 300) is sent to the data server. This information is transmitted to the user through the application server 303.

The storage device 105 of the installed terminal 100, the storage device 202 of the mobile terminal 200 and the authentication server of the server 300 has a control signal value of the communication given to each other. This can be set by the user, and the user can change the setting value through wired or wireless at any time. The value required for the control signal and authentication of the terminal may be a unique ID and network information.

3 is an exemplary diagram showing that the installed type terminal and the standalone terminal can mutually control each other by using a communication signal. The server 300 of the present invention may also include an authentication server 301 for authentication.

4 is a diagram showing a technical example of the present invention relates to a method for authentication.

When the standalone terminal moves to the reception area of the install type terminal, the install type terminal recognizes the standalone terminal and transmits and receives the unique ID of the standalone terminal. Thereafter, the provided unique ID makes an ID authentication request through the server, and the authentication server in the server determines whether to approve and transmits it to the installed terminal. In this case, if the unique ID of the standalone terminal is approved by the server, the installed type terminal may store the corresponding information and send a control signal to the standalone terminal for control.

At this time, if the installation type terminal provided with the unique ID provides information to the server and does not perform authorization authentication on the server, the installation type terminal is provided with the corresponding information and cannot control any stand-alone terminal. At this time, the stand-alone terminal and the installed terminal has a unique ID of each other, it can be mutually confirmed and can be confirmed only one side as shown in the above example.

5 shows an operation procedure for the use example to which the present invention is applied. When B becomes a distance that A can recognize, A recognizes B.

A requests the C to authenticate the recognized information, and C approves the information requested by A for authentication. From then on, A checks information in real time on B's movement and status, and delivers the information to C. After that, the user can check the status of B through a separate web or APP.

At this time, the user can command the execution of a specific function that B has. If B has built-in module sensors such as camera module, GPS, gyro sensor, acceleration sensor, receiving module, etc. according to user's needs, if function signal is given through C to turn on / off the corresponding module, C sends the function signal requested by the user to A so that A can turn ON / OFF the specific function module owned by B.

FIG. 6 allows a user to input information about distance to A to set an area where B can be active.

That is, the present invention relates to a method for allowing a user to input information about a space through A's memory or C to limit where B can move. In Fig. 4, when the prohibited area is set, the overall operation sequence is shown. When B is a distance that A can recognize, A recognizes B. A requests the C to authenticate the recognized information, and C approves the information requested by A for authentication.

From then on, A checks information in real time on B's movement and status, and delivers the information to C. After that, the user can check the status of B through a separate web or APP.

In this case, A may directly input information to A which is prohibited from moving and entering a specific space by the user or may designate a moving and access restriction through C. That is, when the user attempts to set the movement limit in a specific space, the user measures the distance of the corresponding coordinate or signal and stores the corresponding information in A.

Alternatively, when the user sets the movement restriction information through C and sets access restriction information, C may transmit the corresponding information to A to operate.

In this case, if there are multiple B's, access rights can be given to each of the matched B's individual names.

The installation type terminal may include information on the layout of the installed internal space, and may install warning bars and send warning messages and warning sounds when moving to the prohibited zones.

7 and 8 show yet another embodiment.

9 relates to control and data acquisition Example  Illustrated.

Of existing methods In the city example  Bluetooth, Wi-Fi  Devices are being used by the user

User's terminal and information about the certification of occupation on the terminal (smartphone, PC, Tablet)

Bluetooth, Wi-Fi  While connected to the terminal, the present invention is not the authentication information of their terminal to the server The authentication approval information for the terminal  There is a difference in registration. Further, in the city example of the conventional method, Bluetooth, Wi-Fi  If the user registers the communication between the devices once, the user is continuously connected before the user deletes the approval information of the terminal that he or she is using directly, such as a smartphone or a PC. First time user  After entering the information for one-time or recurring approval over time for three different terminals through the server, terminal B approval is made according to the registered information. Are automatically deleted .

Bluetooth, for example WIFI  If the terminal is set to connect with other devices, the present invention is not a user terminal Third  It will be a difference between the present invention and the present invention that the terminal B is connected to another device A, and the authentication information is deleted from the server after a predetermined process after the B is connected, rather than being continuously approved by registration.

In the existing method, the general user has an installed terminal A Wifi  or LoRA  When using communication module WiFi  You can set access rights (Access permissions) for AP or Gateway connection, but not other information.

By the method of the invention iot module terminal After installation  If the user registers the authentication information of the standalone terminal (B) in advance through the authentication server, there is no need for user or administrator A, B  It automatically recognizes between terminals, authenticates to the server, and transmits B's operation control signals so that B operates. At this time, Certification approval information for B  Register regularly for one-time or period-specific approval. User authentication information is not registered, and B who subsequently accesses A cannot be authenticated.

Therefore, the present invention is not intended to authenticate the user's own terminal or himself, Third  Approving, controlling, and acquiring data between the terminal B and the installed terminal A iot module terminal  It is about.

10 is by the administrator of the present invention iot module terminal  Indicate setting method and connection method It is a city example .

 The end user cannot set up or control the terminal in any form, but only by the administrator. Settings  Done. However, users install the installed terminal directly in their space when doing WiFi  Only settings can be made. In other words, the installation terminal is installed close to the user WIFi  This is the only case that can be connected to the AP. In this case, the user is assigned an ID / To PWD  Access to terminal (A) WiFi  You can configure the connection with the AP.

Where A is basically WiFi  Using the module WiFi  3G, LTE , LET-M, Lora  Same modular By replacing the board WiFi  It is possible to connect to the public network without connecting to the AP.

11 is related to the network connection of the terminal of the present invention Example  Illustrated.

External communication devices are modular and exchange modular communication devices according to the environmental requirements of the installation space (place). To be replaced with a format  Can be traditional Wicon  It is similar to the basic concept.

only, WiFi and LoRA  When installing a module, ensure that the AP or gateway device is Additionally  Must be installed and iot module terminal  Internal communication devices WiFi , BLE  It can be configured as a network.

Iot terminal Wi-Fi  Unlike a wireless router variety  Network Be connected at the same time  Can not, Wi-Fi  Unlike regular gateways, only standalone terminals (B) approved by the administrator You can connect , Also on B  Not store information about ( General router will store information such as connected MAC address.)

200: standalone terminal 100: mounting IOT terminal

300: server

The present invention provides a system that enables mutual control of devices by mutually recognizing devices through communication in a specific space from the outside.

Claims (4)

1. A system for exchanging data by exchanging signals by exchanging signals with each other. A server 300 connected to an external network and a terminal are connected to each other by using short-range communication.

   It includes an installation-type terminal 100 and a stand-alone terminal 200 that is wirelessly connected to the installation-type terminal 100

   The installed terminal 100 includes an external communication device 1003 directly connected to an external server and an internal communication device 1004 connected only to the standalone terminal 200.

   The standalone terminal 200 includes an internal communication device 2003 for communicating with the installed terminal 100 and a sensor 2004 for capturing information around the standalone terminal 200.

   When the standalone terminal 200 falls within the recognition range of the installable terminal 100, the standalone terminal 200 transmits pre-stored authentication information to the server through the installable terminal and authenticates the installed terminal 100 and the standalone terminal ( 200 is set to the communication state and controls the operation of the stand-alone terminal 200 in the installation terminal 100

   The information sensed by the stand-alone terminal 200 is transmitted to the server through the installation terminal 100 is stored, the system for exchanging data by transmitting and receiving mutual signals between devices
2. According to claim 1, The installation terminal 100 is connected to the external network at the time of the first installation and access to the installation terminal 100 with the information specified by the administrator characterized in that the installation terminal 100 to authenticate the server System that exchanges data by exchanging signals with each other
3. 3. The system of claim 2, wherein the external communication device is modular and exchangeable, and the sensor device of the standalone terminal is also modular.
4. The system of claim 3, wherein the authentication information of the standalone terminal is extinguished after a predetermined time and a predetermined number of times of authentication.

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