JP7345129B2 - Control methods, management systems, programs - Google Patents

Description

The present disclosure relates to control technology, and particularly to a control method, management system, and program for controlling devices installed in a facility.

In an intercom system, in order to enable a mobile information terminal to respond to a call from a doorway cordless handset, calls/transfers are made between the mobile information terminal and the mobile information terminal equipped with SIP (Session Initiation Protocol) communication function using the Internet. A response is made. In order to realize such a call/response, a mobile information terminal periodically notifies and registers its own IP address to a device within a facility (for example, see Patent Document 1).

Japanese Patent Application Publication No. 2013-176005

Various information is stored in devices within the facility. Since such information includes the user's personal information, it is desirable to automatically infer that the user has left the facility and delete the information.

The present disclosure has been made in view of these circumstances, and its purpose is to provide a technology for estimating when a user leaves a facility.

In order to solve the above problems, a control method according to an aspect of the present disclosure is a control method for a movable terminal device, which includes a step of communicating with a communication device of a management system installed in a facility, and a step of communicating with a communication device of a management system installed in a facility. If the communication satisfies a predetermined condition, the method includes a step of estimating whether the user of the terminal device leaves the facility, and a step of outputting information based on the evacuation estimation result. The information output in the outputting step includes information requesting deletion of information regarding a user registered in the communication device.
Another aspect of the present disclosure is also a control method. This method is a method for controlling a mobile terminal device, and includes the steps of communicating with a communication device of a management system installed in a facility, and when the communication with the communication device satisfies a predetermined condition, the terminal device The present invention includes the steps of estimating whether the user will leave the facility, and outputting information based on the evacuation estimation result. The predetermined condition includes that no communication with the communication device is made for a predetermined period of time, and the information output in the outputting step includes information for confirming the user to leave the facility.

Yet another aspect of the present disclosure is a management system. This management system is a management system provided in a facility, and includes a communication device that communicates with a movable terminal device. When communication with the terminal device satisfies predetermined conditions, the communication device estimates whether the user of the terminal device will leave the facility, outputs information based on the estimated result of leaving , and outputs the information from the communication device. The information requested includes information requesting deletion of information related to users registered in the communication device.
Yet another aspect of the present disclosure is also a management system. This management system is a management system provided in a facility, and includes a communication device that communicates with a movable terminal device. If the communication with the terminal device satisfies a predetermined condition, the communication device estimates that the user of the terminal device will leave the facility, outputs information based on the evacuation estimation result, and the predetermined condition is met. , including that no communication has been made with the terminal device for a predetermined period of time, and the information output from the communication device includes information for confirming to the user to leave the facility.

Note that arbitrary combinations of the above components and expressions of the present disclosure converted between methods, devices, systems, recording media, computer programs, etc. are also effective as aspects of the present disclosure.

According to the present disclosure, it is possible to estimate a user's departure from a facility.

FIGS. 1A and 1B are diagrams showing the configuration of a communication system according to the first embodiment. FIG. 1 is a diagram showing the configuration of the entrance slave unit, the master unit in the room, and the communication device shown in FIGS. 1(a) and 1(b). FIG. 1 is a diagram showing the configuration of the mobile information terminal shown in FIGS. 1(a)-(b). 4 is a diagram showing a screen displayed on the monitor of FIG. 3. FIG. 5(a)-(b) are diagrams showing an overview of processing in the communication system of FIGS. 1(a)-(b). 4 is a diagram showing a screen displayed on the monitor of FIG. 3. FIG. FIG. 2 is a sequence diagram showing a processing procedure by the communication system of FIGS. 1(a)-(b). FIG. 4 is a flowchart showing a processing procedure by the mobile information terminal of FIG. 3. FIG. 3 is a sequence diagram showing a processing procedure by a communication system according to a second embodiment. FIG. 7 is a flowchart showing a processing procedure by a communication device according to a second embodiment.

(Example 1)
Before specifically explaining the present disclosure, an overview will be given. Embodiment 1 describes communication between an entrance handset and a mobile information terminal in response to a call request from an entrance handset to a main room unit in an intercom system installed in a facility such as an apartment complex or a single-family house. Regarding the system. The mobile information terminal is compatible with a mobile phone system such as LTE (Long Term Evolution) (hereinafter referred to as the "first communication method"), and also supports a wireless LAN (Local Area Network) (hereinafter referred to as the "second communication method"). ). Here, it is assumed that the first communication method can be used both inside and outside the facility, while the second communication method can be used inside the facility and cannot be used outside the facility.

When communicating between the entrance cordless handset and the mobile information terminal, both audio and video may be transmitted, so when considering communication bandwidth and communication charges, it is necessary to use the second communication method within the facility. It is preferable to use the first communication method outside. In order to realize such communication between the entrance handset and the mobile information terminal, information regarding the mobile information terminal is stored in a communication device connected to the room base unit installed in the facility. Additionally, information regarding the user is stored in the room base unit. Information regarding the mobile information terminal and information regarding the user should be deleted when the user leaves the facility. On the other hand, since this information is personal information, it is difficult to delete this information after being notified by the facility administrator. Therefore, it is required to automatically estimate the user's departure from the facility and delete this information.

In order to cope with this, in the communication system according to the present embodiment, the mobile information terminal transmits a search signal, and the communication device that has received the search signal transmits a response signal, so that the mobile information terminal detects the communication device. estimating the user's departure from the facility using the sequence for Specifically, an application executed on a mobile information terminal periodically transmits a search signal. Search signals and response signals are signals that can be transmitted only within a subnet, so if the application receives a response signal to the search signal sent periodically, it recognizes that the application exists in the same subnet as the communication device. . Since the communication device is connected to a subnet within the facility, being in the same subnet as the communication device corresponds to being within the facility. Therefore, if the application does not receive a response signal for a predetermined period of time, the application infers that the user has left the facility.

FIGS. 1(a)-(b) show the configuration of a communication system 1000. Communication system 1000 includes intercom system 10, router 400, access point 410, network 420, activation server 430, base station device 440, call control server 450, and mobile information terminal 500. The intercom system 10 includes an entrance slave unit 100, a room master unit 200, and a communication device 300. Although the room base unit 200 and the communication device 300 are shown as separate devices here, they may be integrated by the room base unit 200 including the communication device 300. The intercom system 10, router 400, and access point 410 are installed in the facility 20, and the network 420, activation server 430, base station device 440, and call control server 450 are installed outside the facility 20. The facility 20 is, for example, a single-family house, a housing complex such as a condominium, or a building such as an office or a factory.

The entrance handset 100 is an intercom installed outside the entrance of the facility 20. The entrance slave unit 100 is installed, for example, at the entrance of a detached house (outside the house). Furthermore, the entrance handset 100 may be a lobby intercom or doorphone handset in an apartment complex. A call button provided on the entrance handset 100 is pressed down when a visitor arrives. The entrance slave unit 100 is connected to the room master unit 200 via a wired or wireless dedicated line.

The room master device 200 is installed within the facility 20. The room base unit 200 connects the entrance slave unit 100 and the communication device 300 via a dedicated line. When a user, such as a resident, presses the response button on the room main unit 200 in response to a call from the entrance handset 100, a conversation between the visitor and the user becomes possible between the entrance handset 100 and the room main unit 200. Become. The user in this embodiment can also use the mobile information terminal 500 in order to respond to a call from the entrance handset 100.

The mobile information terminal 500 is, for example, a smart phone or a tablet terminal, and can be carried by the user and moved inside and outside the facility 20. Furthermore, the mobile information terminal 500 has a wireless communication function compatible with the first communication method and the second communication method. The first communication method is, for example, a mobile phone system or a wireless MAN (Metropolitan Area Network), and the second communication method is, for example, a wireless LAN. Furthermore, the mobile information terminal 500 is capable of executing an application program (hereinafter referred to as a "calling application") for responding to a call from the intercom system 10.

In order to enable communication between the mobile information terminal 500 and the entrance handset 100, a communication device 300 is connected to the room master device 200, and a router 400 is connected to the communication device 300. The communication device 300 executes conversion between the communication interface on the room master device 200 side and the communication interface on the router 400 side. Router 400 connects access point 410 within facility 20 and also connects to network 420 outside facility 20 . The access point 410 is a wireless device that can communicate with the mobile information terminal 500 within the facility 20 by performing communication using the second communication method. Here, when the area where communication is possible using the second communication method with the access point 410 is called the first area, the facility 20 where the intercom system 10 is installed is called the second area. In this embodiment, it is assumed that the first region and the second region coincide, but it is sufficient that they overlap at least in part.

The network 420 is formed by wire or wireless or a combination thereof, and is, for example, the Internet. An activation server 430, a base station device 440, and a call control server 450 are connected to the network 420. Activation server 430 is a server for externally activating an application in mobile information terminal 500, for example, a calling application. The activation server 430 has a function of, for example, APNS (Apple Push Notification Service) or FCM (Firebase Cloud Messaging). The base station device 440 is a wireless device that can communicate with the mobile information terminal 500 inside and outside the facility 20 by performing communication using the first communication method. The call control server 450 is a server that establishes or disconnects a session between the room base unit 200 and the mobile information terminal 500. Call control server 450 is, for example, a SIP server. Further, the call control server 450 may execute WebRTC (Web Real-Time Communication) in addition to SIP.

The configuration and operation of the communication system 1000 will be described below using FIGS. 2, 3, and 4(a) to 4(b) in addition to FIGS. 1(a) to 1(b). Here, (1) basic operation of the intercom system 10, (2) communication operation between the entrance handset 100 and the mobile information terminal 500 outside the facility 20, (3) the communication between the entrance handset 100 and the mobile information terminal 500 inside the facility 20. The communication operation with (4) the evacuation estimation operation will be explained in this order.

(1) Basic operation of the intercom system 10 FIG. 2 shows the configuration of the entrance handset 100, the living room base unit 200, and the communication device 300. The entrance slave device 100 includes a processing section 110, an operation section 130, and a communication section 140, and the processing section 110 includes an imaging section 112, a microphone 114, a speaker 116, a monitor 118, and an IF section 120. The room master device 200 includes a processing section 210, an operation section 230, a communication section 240, and a control section 250, and the processing section 210 includes a microphone 214, a speaker 216, a monitor 218, and an IF section 220. The communication device 300 includes a first communication section 340, a second communication section 342, a control section 350, and a storage section 360. When the room master device 200 includes the communication device 300 so that they are integrated, the communication section 240 and the first communication section 340 may be common, and the control section 250 and the control section 350 may also be common. Good too.

The operation unit 130 of the entrance slave device 100 is a user interface for receiving operations from a visitor, and is, for example, a call button. When the operation unit 130 is pressed down by the visitor, the operation unit 130 outputs a call request to the communication unit 140. Further, when the operation unit 130 is pressed down by the visitor, the processing unit 110 operates.

The imaging unit 112 is for photographing visitors, and includes a solid-state imaging device such as a CMOS (Complementary Metal Oxide Semiconductor) image sensor or a CCD (Charge Coupled Device) image sensor. The solid-state image sensor outputs the photoelectrically converted video signal to the IF section 120. The IF unit 120 performs various signal processing on the video signal from the imaging unit 112. Since known techniques may be used for various signal processing, the description thereof will be omitted here. The IF unit 120 outputs the video signal (hereinafter also referred to as “video signal”) that has undergone signal processing to the communication unit 140.

Microphone 114 and speaker 116 are a user interface for visitors to communicate with residents. The microphone 114 collects the visitor's voice, converts it into an electrical signal, and outputs it to the IF section 120. The speaker 116 reproduces the electrical signal from the IF section 120 and outputs audio. The IF section 120 receives an electrical signal from the microphone 114 and converts it into a signal in a format for transmission (hereinafter referred to as an "audio signal"). IF section 120 outputs the audio signal to communication section 140. On the other hand, the IF section 120 receives an audio signal from the communication section 140 and converts the audio signal into an electrical signal. IF section 120 outputs an electrical signal to speaker 116.

The monitor 118 displays messages and the like. Note that the message may be displayed using an LED (Light Emitting Diode) or the like. For example, a light emitting unit such as an LED is arranged in advance for each message, and the message is conveyed by lighting up one of them. The IF unit 120 receives a message signal from the communication unit 140 and outputs the message signal to the monitor 118. Note that the message signal may be generated in the entrance handset 100. The communication unit 140 has a communication function using a dedicated line, and executes communication with the main unit 200 in the room. Specifically, the communication unit 140 transmits and receives the above-mentioned call request, video signal, audio signal, and message signal to and from the room base unit 200, but the signals transmitted and received are not limited to these.

The communication unit 240 of the room base unit 200 has a communication function using a dedicated line, and executes communication with the communication unit 140 of the entrance slave unit 100. The communication unit 240 also performs communication with the first communication unit 340 of the communication device 300. Therefore, the communication unit 240 can relay communication between the entrance slave device 100 and the communication device 300. A control unit 250 is connected to the communication unit 240, and the control unit 250 controls the operation of the room base unit 200. An IF section 220 and an operation section 230 are connected to the control section 250, and a microphone 214, a speaker 216, and a monitor 218 are connected to the IF section 220. Here, the microphone 214, the speaker 216, the IF section 220, and the operation section 230 are configured similarly to the microphone 114, the speaker 116, the IF section 120, and the operation section 130. The monitor 218 displays the image captured by the imaging unit 112 of the entrance slave device 100.

The control unit 250 receives a call request, video signal, and audio signal from the entrance handset 100 via the communication unit 240. Upon receiving the call request, the control unit 250 causes the speaker 216 to output a ring tone via the IF unit 220. Subsequently, the control unit 250 causes the monitor 218 to display the video obtained by reproducing the video signal via the IF unit 220, and causes the speaker 216 to output the audio obtained by reproducing the audio signal via the IF unit 220. . When the user who hears the ringing responds to the call by operating the operation unit 230, the control unit 250 causes the communication unit 240 to perform communication with the entrance slave device 100. As a result, the video signal and the audio signal are communicated between the communication unit 140 and the communication unit 240, so that communication between the visitor who operates the entrance slave unit 100 and the user who operates the main unit 200 in the room is The call is made.

(2) Communication operation between the entrance handset 100 and the portable information terminal 500 outside the facility 20 In the explanation so far, the user operates the room master device 200 to respond to a call from the entrance handset 100. On the other hand, the user can also respond to a call from the entrance handset 100 by operating the mobile information terminal 500. When the entrance handset 100 is called a first terminal device, the mobile information terminal 500 is called a second terminal device. In order to perform communication between the entrance slave unit 100 and the mobile information terminal 500, the communication device 300 executes a connection process between the room base unit 200 and the mobile information terminal 500. When the control unit 250 of the room base unit 200 receives the call request, video signal, and audio signal from the entrance slave unit 100 via the communication unit 240, the control unit 250 causes the communication device 300 to transmit the call request via the communication unit 240.

The first communication unit 340 of the communication device 300 is capable of communicating with the communication unit 240 of the main unit 200 in the room. The first communication unit 340 receives the call request from the communication unit 240. This corresponds to receiving a call request from the entrance handset 100. The first communication section 340 is connected to the control section 350, and the second communication section 342 is also connected to the control section 350. The second communication unit 342 can communicate with the router 400 in FIG. 1(a), and can also communicate with the access point 410 and the network 420 via the router 400.

The control unit 350 controls the operation of the communication device 300 and converts the format of a signal between the first communication unit 340 and the second communication unit 342. When the control unit 350 receives the call request from the first communication unit 340, it generates a signal (hereinafter referred to as “startup request”) for requesting the start-up of the calling application executed on the mobile information terminal 500. The activation request includes identification information for identifying the communication device 300 and also includes identification information for identifying the calling application. Further, the destination of the activation request is set to the activation server 430. Here, the identification information and information on the destination activation server 430 are stored in the storage unit 360. The control unit 350 outputs the activation request to the second communication unit 342, and the second communication unit 342 transmits the activation request received from the control unit 350.

The activation request is sent to the activation server 430 via the router 400 and the network 420 along the path P1 in FIG. 1(a). The activation server 430 receives an activation request from the communication device 300. The activation server 430 has a function of a PUSH server (hereinafter referred to as a "first function"), and also has a function of APNS or FCM (hereinafter referred to as a "second function"). The activation server 430 may be configured as a separate server for each function, or may be configured as one server.

The activation server 430 has, as a first function, a table showing the correspondence between the identification information of the communication device 300 and the identification information of the mobile information terminal 500. This can be said to be a table showing the correspondence between the communication devices 300 installed in the facility 20 and the mobile information terminals 500 to which calls are transferred. In the table, identification information of a plurality of mobile information terminals 500 may be associated with identification information of one communication device 300. The activation server 430 extracts the identification information of the communication device 300 from the activation request, and obtains the identification information of the mobile information terminal 500 associated with the identification information of the communication device 300 by referring to the table.

As a second function, the activation server 430 extracts the identification information of the calling application from the activation request. Activation server 430 transmits a signal (hereinafter also referred to as "activation request") for activating the calling application in portable information terminal 500 of the identification information acquired in the first function. The activation request is a signal for activating a called application in response to a call in the intercom system 10, and includes identification information of the calling application. The activation request is sent to the mobile information terminal 500 via the network 420 and the base station device 440 along the route P2 in FIG. 1(a).

FIG. 3 shows the configuration of mobile information terminal 500. The mobile information terminal 500 includes a processing section 510, a first communication method communication section 540, a second communication method communication section 542, a control section 550, and a storage section 560. The processing section 510 includes a microphone 514, a speaker 516, a monitor 518, It includes an IF section 520 and an operation section 530. The first communication method communication unit 540 executes communication using the first communication method and is capable of communicating with the base station device 440 in FIG. 1(a). The second communication method communication unit 542 executes communication using the second communication method and is capable of communicating with the access point 410 in FIG. 1(a). A control section 550 is connected to the first communication method communication section 540 and the second communication method communication section 542, and the control section 550 controls the operation of the mobile information terminal 500. An IF section 520 and a storage section 560 are connected to the control section 550, and a microphone 514, a speaker 516, a monitor 518, and an operation section 530 are connected to the IF section 520. Here, the microphone 514, the speaker 516, and the IF section 520 are configured similarly to the microphone 114, the speaker 116, and the IF section 120. The monitor 518 and the operation unit 530 may be integrally configured as a touch panel display, for example.

The first communication method communication unit 540 receives the activation request from the activation server 430 using the first communication method. When the control unit 550 receives the activation request from the first communication method communication unit 540, it extracts the identification information of the calling application included in the activation request. The control unit 550 starts the calling application stored in the storage unit 560 based on the identification information of the calling application. The calling application executed in the control unit 550 causes the first communication method communication unit 540 to transmit a signal (hereinafter referred to as a “registration signal”) for registering the mobile information terminal 500 with the call control server 450. The registration signal includes identification information of mobile information terminal 500 and an address of mobile information terminal 500. An example of the address is an IP (Internet Protocol) address. The registration signal is sent to the call control server 450 via the base station device 440 and the network 420 along route P3 in FIG. 1(a).

Call control server 450 in FIG. 1(a) receives a registration signal from mobile information terminal 500. Call control server 450 registers mobile information terminal 500 whose calling application has been activated by activation server 430 based on the registration signal. At that time, call control server 450 stores, for example, a combination of the identification information of mobile information terminal 500 included in the registration signal and the address of mobile information terminal 500.

Control unit 350 of communication device 300 in FIG. 2 generates a signal for calling mobile information terminal 500 (hereinafter referred to as a "calling signal"). The calling signal includes identification information of the mobile information terminal 500. Further, the destination of the paging signal is set to the call control server 450. The control section 350 outputs the calling signal to the second communication section 342, and the second communication section 342 transmits the calling signal received from the control section 350. The paging signal is sent to the call control server 450 via the router 400 and the network 420 along the path P4 in FIG. 1(a).

Call control server 450 in FIG. 1A receives a call signal from communication device 300. Call control server 450 in FIG. Call control server 450 extracts identification information of mobile information terminal 500 from the received calling signal. Call control server 450 obtains the address of mobile information terminal 500 corresponding to the extracted identification information of mobile information terminal 500 from the stored combinations. Call control server 450 transfers the calling signal to mobile information terminal 500 using the acquired address as the destination. The calling signal includes identification information of the communication device 300 and an address of the communication device 300. The paging signal is sent to the mobile information terminal 500 via the network 420 and the base station device 440 along the route P5 in FIG. 1(a).

The first communication method communication unit 540 of the mobile information terminal 500 in FIG. 3 receives a paging signal from the call control server 450. When the control unit 550 receives the call signal from the first communication method communication unit 540, it extracts the identification information of the communication device 300 and the address of the communication device 300 included in the call signal. The calling application executed by the control unit 550 generates a screen to notify the user of the call from the communication device 300, and displays the screen on the monitor 518.

FIG. 4 shows a screen displayed on monitor 518. Display area 600 displays a message to notify the user of a call, such as "You have received a call." Further, below the display area 600, a call button 610 and an end button 620 are shown. The call button 610 is a button that the user should select when starting a call, and the end button 620 is a button that the user should select when not starting a call or ending a call. Return to Figure 3. When the user touches call button 610 or end button 620, operation unit 530 receives an instruction from the user. Specifically, the operation unit 530 receives an instruction to respond to a call when the call button 610 is touched, and receives an instruction to refuse to respond to the call when the end button 620 is touched. The operation unit 530 outputs the received instruction to the control unit 550.

When the control unit 550 receives a response instruction, it generates a response signal. The destination of the response signal is set to call control server 450. The control section 550 outputs a response signal to the first communication method communication section 540, and the first communication method communication section 540 transmits the response signal. The response signal is sent to the call control server 450 via the base station device 440 and the network 420 along route P6 in FIG. 1(a). When call control server 450 in FIG. 1A receives a response signal from mobile information terminal 500, call control server 450 in FIG. 1A transmits the response signal to communication device 300. At that time, the response signal includes the address of mobile information terminal 500. The response signal is sent to the communication device 300 via the network 420 and the router 400 along the path P7 in FIG. 1(a).

The second communication unit 342 of the communication device 300 in FIG. 2 receives the response signal from the call control server 450. The second communication unit 342 outputs a response signal to the control unit 350. Upon receiving the response signal from the second communication unit 342, the control unit 350 extracts the address of the mobile information terminal 500 from the response signal. As a result, communication device 300 and mobile information terminal 500 acquire each other's addresses, so control unit 350 determines that the connection with mobile information terminal 500 is completed. The control unit 350 causes the first communication unit 340 to transmit a notification (hereinafter referred to as “completion notification”) for notifying the completion of the connection with the mobile information terminal 500 to the room base unit 200.

The communication unit 240 of the room master device 200 receives the completion notification from the communication device 300. The communication unit 240 outputs a completion notification to the control unit 250. Upon receiving the completion notification from the communication unit 240, the control unit 250 recognizes the completion of the connection between the room base unit 200 and the mobile information terminal 500 by the communication device 300. After recognizing the completion of the connection, the control unit 250 causes the communication unit 240 to transmit the video signal and audio signal from the entrance handset 100 to the communication device 300, and also sends the audio signal from the communication device 300 to the entrance handset. 100. That is, the control unit 250 causes the communication unit 240 to execute relay processing between the entrance slave device 100 and the communication device 300.

Following this, the control unit 350 of the communication device 300 sets a route between the second communication unit 342 and the mobile information terminal 500 via the router 400, the network 420, and the base station device 440. That is, the control unit 350 causes the first communication method to be used for communication between the entrance slave unit 100 and the mobile information terminal 500. As shown in FIG. 1(a), the audio signal and video signal from the entrance slave unit 100 are transmitted via the room master unit 200, the communication device 300, the router 400, the network 420, and the base station device 440 along the path P8. The information is sent to the mobile information terminal 500. Furthermore, the audio signal from the mobile information terminal 500 is sent to the entrance handset 100 via the base station device 440, the network 420, the router 400, the communication device 300, and the room master device 200 along the path P8. As a result, communication using the first communication method becomes possible between the visitor who operates the entrance handset 100 and the user who operates the mobile information terminal 500.

(3) Communication operation between the entrance handset 100 and the portable information terminal 500 in the facility 20 The first communication unit 340 of the communication device 300 in FIG. 2 receives the call request from the communication unit 240 as before. The control unit 350 has the functions of the activation server 430 and call control server 450 in FIG. 1(a), and upon receiving a call request from the first communication unit 340, generates an activation request. This activation request is similar to the activation request sent from the activation server 430. Therefore, the activation request includes identification information of the calling application, and the destination of the activation request is set to mobile information terminal 500. Storage unit 360 stores identification information of mobile information terminal 500 and the like. The control unit 350 outputs the activation request to the second communication unit 342, and the second communication unit 342 transmits the activation request. The activation request is sent to the mobile information terminal 500 via the router 400 and the access point 410 along the path P2 in FIG. 1(b).

The second communication method communication unit 542 of the mobile information terminal 500 in FIG. 3 receives the activation request from the communication device 300. The control unit 550 starts the calling application by executing the same processing as before, and causes the calling application to transmit a registration signal to the second communication method communication unit 542. The calling application started by the starting request from the communication device 300 and the calling application started by the starting request from the starting server 430 may be different applications. The registration signal is sent to the communication device 300 via the access point 410 and the router 400 along the path P2 in FIG. 1(b). The second communication unit 342 of the communication device 300 in FIG. 2 receives the registration signal from the mobile information terminal 500. Based on the registration signal received from the second communication unit 342, the control unit 350 registers the mobile information terminal 500 on which the calling application has been activated.

Control unit 350 generates a calling signal. This calling signal is similar to the calling signal transmitted from call control server 450. Therefore, the destination of the call signal is set to mobile information terminal 500. The control unit 350 outputs a calling signal to the second communication unit 342, and the second communication unit 342 transmits the calling signal. The calling signal is sent to the mobile information terminal 500 via the router 400 and the access point 410 along the route P3 in FIG. 1(b).

The second communication method communication unit 542 of the mobile information terminal 500 in FIG. 3 receives the calling signal from the communication device 300. The control unit 550 performs the same processing as before for the calling signal. When the control unit 550 receives a response instruction, it generates a response signal. The destination of the response signal is set to the communication device 300. The control section 550 outputs a response signal to the second communication method communication section 542, and the second communication method communication section 542 transmits the response signal. The response signal is sent to the communication device 300 via the access point 410 and the router 400 along the path P4 in FIG. 1(b).

The second communication unit 342 of the communication device 300 in FIG. 2 receives the response signal from the mobile information terminal 500. Upon receiving the response signal from the second communication unit 342, the control unit 350 extracts the address of the mobile information terminal 500 from the response signal. As a result, communication device 300 and mobile information terminal 500 acquire each other's addresses, so control unit 350 determines that the connection with mobile information terminal 500 is completed. The control unit 350 causes the first communication unit 340 to transmit a completion notification to the main unit 200 in the room.

The communication unit 240 of the room master device 200 receives the completion notification from the communication device 300. Upon receiving the completion notification from the communication unit 240, the control unit 250 recognizes the completion of the connection between the room base unit 200 and the mobile information terminal 500 by the communication device 300. After recognizing the completion of the connection, the control unit 250 causes the communication unit 240 to transmit the video signal and audio signal from the entrance handset 100 to the communication device 300, and also transmits the audio signal from the communication device 300 to the entrance handset 100. send to. That is, the control unit 250 causes the communication unit 240 to execute relay processing between the entrance slave device 100 and the communication device 300.

Following this, the control unit 350 of the communication device 300 sets a route via the router 400 and the access point 410 between the second communication unit 342 and the mobile information terminal 500. That is, the control unit 350 causes the second communication method to be used for communication between the entrance slave unit 100 and the mobile information terminal 500. As shown in FIG. 1B, the audio signal and video signal from the entrance slave unit 100 are transmitted to the mobile information terminal 500 via the room master unit 200, the communication device 300, the router 400, and the access point 410 along a path P5. sent to. Furthermore, the audio signal from the mobile information terminal 500 is sent to the entrance handset 100 via the access point 410, the router 400, the communication device 300, and the room base unit 200 along the path P5. As a result, communication using the second communication method becomes possible between the visitor who operates the entrance handset 100 and the user who operates the mobile information terminal 500.

When mobile information terminal 500 exists outside facility 20, no communication occurs between access point 410 and mobile information terminal 500. Therefore, the activation request along route P1 in FIG. 1(b) is not received by mobile information terminal 500, and subsequent processing is not executed. As a result, according to the operation (2), communication using the first communication method is performed between the entrance handset 100 and the mobile information terminal 500. On the other hand, if the mobile information terminal 500 is present in the facility 20, both the operations (2) and (3) are executed, and the communication using the communication method that established the connection first is sent to the entrance terminal. The process is executed between the device 100 and the mobile information terminal 500.

(4) Estimation operation for leaving As described above, the storage unit 360 of the communication device 300 in FIG. 2 stores the identification information of the mobile information terminal 500 and the like. In addition, when the room base unit 200 includes the communication device 300 and is integrated, the storage unit 360 may store a video signal etc. captured by the imaging unit 112 of the entrance slave unit 100. be. The identification information of the mobile information terminal 500 corresponds to the above-mentioned information regarding the mobile information terminal, and the video signal etc. correspond to the above-mentioned information regarding the user. In the following description, this information may be collectively referred to as "information regarding the user." When a user leaves facility 20, information regarding the user should be deleted from storage 360. On the other hand, since this information is personal information, it is difficult to delete this information after being notified of it by the administrator of the facility 20. Therefore, the communication system 1000 estimates that the user has left the facility 20 and deletes this information.

5(a)-(b) show an overview of processing in the communication system 1000. FIG. 5A shows a procedure in which the mobile information terminal 500 searches for the communication device 300 when the mobile information terminal 500 is present in the facility 20. Control unit 550 of mobile information terminal 500 in FIG. 3 generates search signal 700 for searching for communication device 300. The search signal 700 is, for example, a device discovery command (M-Search Request) of UPnP (Universal Plug and Play). The header of the M-Search Request includes an ST for specifying the device to be searched, and the control unit 550 includes identification information of the communication device 300, for example, the UUID (Universally Unique IDentifier) of the communication device 300, in the ST. ). The second communication method communication unit 542 periodically multicast transmits the search signal 700 using the second communication method.

Since the search signal 700 is transmitted only within the subnet, it is sent to the communication device 300 via the access point 410 and router 400, as shown in FIG. 5(a). The second communication unit 342 of the communication device 300 in FIG. 2 receives the search signal 700. The second communication unit 342 outputs the search signal 700 to the control unit 350. The control unit 350 checks the contents of the ST included in the search signal 700. Since ST indicates the UUID of the communication device 300, the control unit 350 generates a response signal 710 to the search signal 700. When search signal 700 is M-Search Request, response signal 710 is M-Search Response. The destination of the response signal 710 is the mobile information terminal 500. The control section 350 outputs a response signal 710 to the second communication section 342. The second communication unit 342 unicast transmits the response signal 710. Here, if a device other than the communication device 300 is connected in the subnet, the device also receives the search signal 700 from the mobile information terminal 500, but the ST in the search signal 700 is different from its own UUID. Since the device is different, the device does not transmit the response signal 710 to the mobile information terminal 500.

The response signal 710 is sent to the mobile information terminal 500 via the router 400 and the access point 410, as shown in FIG. 5(a). The second communication method communication unit 542 of the mobile information terminal 500 in FIG. 3 receives the response signal 710 from the communication device 300 that received the search signal 700 using the second communication method. The second communication method communication section 542 outputs a response signal 710 to the control section 550. When the control unit 550 receives the response signal 710 to the search signal 700, it confirms that the communication device 300 to be searched exists in the subnet to which the second communication method communication unit 542 is connected. This corresponds to connecting the communication device 300 and the mobile information terminal 500 to the same subnet, but since the subnet is provided within the facility 20, even if the mobile information terminal 500 exists within the facility 20. Equivalent to. In other words, when the mobile information terminal 500 is present in the facility 20, the mobile information terminal 500 periodically transmits the search signal 700 and receives the response signal 710, as shown in FIG. 5(a).

FIG. 5B shows a procedure in which the mobile information terminal 500 searches for the communication device 300 when the mobile information terminal 500 is not present in the facility 20. Control unit 550 of mobile information terminal 500 in FIG. 3 generates search signal 700 for searching for communication device 300. However, if the portable information terminal 500 is not present in the facility 20, the second communication method communication unit 542 is not connected to the access point 410 in FIG. 5(b). Therefore, the search signal 700 is not transmitted as shown in FIG. 5(b). On the other hand, when the second communication method communication unit 542 is connected to an access point (not shown) different from the access point 410 in FIG. 5(b), the second communication method communication unit 542 searches for the access point. A signal 700 is periodically multicast transmitted. However, the communication device 300 is not connected to the subnet to which the access point is connected.

As a result, the search signal 700 is not received by the communication device 300, and the communication device 300 does not transmit the response signal 710, so the second communication method communication unit 542 does not receive the response signal 710. That is, if the portable information terminal 500 is not present in the facility 20, the control unit 550 does not receive the response signal 710 to the search signal 700 from the second communication method communication unit 542. Utilizing this, when the communication with the communication device 300, that is, the transmission of the search signal 700 and the reception of the response signal 710, satisfy a predetermined condition, the control unit 550 controls the communication from the facility 20 of the user of the mobile information terminal 500. Estimate eviction. Here, an example of the predetermined condition is that no communication is made with the communication device 300 for a predetermined period of time. Specifically, if the response signal 710 is not received from the communication device 300 for a predetermined period of time, the control unit 550 estimates leaving. The predetermined period is set to, for example, one month or more. Another example of the predetermined condition is that communication with the communication device 300 fails a predetermined number of times. Specifically, if the response signal 710 to the search signal 700 is not received from the communication device 300 a predetermined number of times, the control unit 550 estimates leaving. The predetermined number of times is set, for example, based on the number of times the search signal 700 is transmitted in a period of one month or more.

When the control unit 550 estimates that the user will leave, the control unit 550 causes the first communication method communication unit 540 to transmit information requesting deletion of information regarding the user registered in the communication device 300 (hereinafter referred to as “deletion request”). It can be said that the deletion request is information based on the estimated result of eviction. The destination of the deletion request is an external server, and examples of the external server are the activation server 430 and call control server 450 in FIG. 5(b). When the server operator of the external server receives the deletion request, the server operator of the external server calls or sends a message to the user of the mobile information terminal 500 to determine whether to stop the service. When stopping the service, the external server transmits information requesting deletion of information regarding the user (hereinafter referred to as "deletion request") to the communication device 300. The deletion request includes identification information of information regarding the user to be deleted. Here, the external server may automatically transmit the deletion request upon receiving the deletion request.

The second communication unit 342 of the communication device 300 in FIG. 2 receives a deletion request from an external server. Upon receiving the deletion request from the second communication unit 342, the control unit 350 extracts identification information of information regarding the user to be deleted. The control unit 350 deletes the information regarding the user corresponding to the extracted identification information from the storage unit 360.

Up to now, when the control unit 550 of the mobile information terminal 500 has estimated that the person will leave, the control unit 550 has caused the first communication method communication unit 540 to transmit a deletion request. However, when the control unit 550 estimates that the user will leave the facility 20, the control unit 550 may display a screen on the monitor 518 for confirming the user's intention to leave the facility 20. FIG. 6 shows a screen displayed on monitor 518. In the display area 600, a message for confirming the user's departure from the facility 20, such as, for example, "Have you moved out?" is displayed. Further, below the display area 600, a yes button 650 and a no button 660 are shown. The Yes button 650 is a button that the user should select if the user has moved out, and the No button 660 is a button that the user should select if the user has not moved out. Return to Figure 3. When the user touches Yes button 650 or No button 660, operation unit 530 receives instructions from the user. Specifically, the operation unit 530 receives an instruction to leave when the Yes button 650 is touched, and receives an instruction to not leave when the No button 660 is touched. The operation unit 530 outputs the received instruction to the control unit 550. When the control unit 550 receives the instruction to leave, the control unit 550 causes the first communication method communication unit 540 to transmit a deletion request. The subsequent processing is the same as before, so the explanation will be omitted here.

The main body of the device, system, or method in the present disclosure includes a computer. When this computer executes the program, the main functions of the device, system, or method of the present disclosure are realized. A computer includes, as its main hardware configuration, a processor that operates according to a program. The type of processor does not matter as long as it can implement a function by executing a program. A processor is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integration (LSI). A plurality of electronic circuits may be integrated on one chip or may be provided on a plurality of chips. A plurality of chips may be integrated into one device, or may be provided in a plurality of devices. The program is recorded on a computer-readable non-transitory storage medium such as a ROM, optical disk, or hard disk drive. The program may be stored in the recording medium in advance, or may be supplied to the recording medium via a wide area communication network including the Internet.

The operation of the communication system 1000 with the above configuration will be explained. FIG. 7 is a sequence diagram showing a processing procedure by the communication system 1000. The mobile information terminal 500 multicast transmits the search signal 700 (S10). Communication device 300 unicast transmits response signal 710 to mobile information terminal 500 (S12). The mobile information terminal 500 multicasts the search signal 700 (S14), but since the mobile information terminal 500 is not present in the facility 20, the search signal 700 is not received. The mobile information terminal 500 multicasts the search signal 700 (S16), but since the mobile information terminal 500 is not present in the facility 20, the search signal 700 is not received. The mobile information terminal 500 multicasts the search signal 700 (S18), but since the mobile information terminal 500 is not present in the facility 20, the search signal 700 is not received. The mobile information terminal 500 estimates whether to move out (S20). The mobile information terminal 500 transmits the deletion request to the external server (S22). The external server transmits a deletion request to the communication device 300 (S24). The communication device 300 deletes information regarding the user (S26).

FIG. 8 is a flowchart showing a processing procedure by the mobile information terminal 500. The second communication method communication unit 542 transmits the search signal 700 (S50). If the second communication method communication unit 542 receives the response signal 710 (Y in S52), the process returns to step 50. If the second communication method communication unit 542 does not receive the response signal 710 (N in S52), and if the predetermined period has not elapsed (N in S54), the process returns to step 50. If a predetermined period of time has elapsed (Y in S54), the control unit 550 estimates leaving (S56). The first communication method communication unit 540 transmits the deletion request to the external server (S58).

According to the embodiment of the present disclosure, when the communication with the communication device 300 satisfies a predetermined condition, it is estimated that the user of the mobile information terminal 500 will leave the facility 20, so the user's departure from the facility is automatically determined. It can be estimated. Furthermore, since information based on the estimated result of leaving is output, the estimated result of leaving can be notified to an external server. Since the estimated result of leaving is notified to the external server, information about the user can be deleted. Furthermore, since communication with the communication device 300 includes transmission of the search signal 700 and reception of the response signal 710, the presence of the communication device 300 can be confirmed.

Moreover, since the predetermined condition includes that no communication with the communication device 300 has been made for a predetermined period of time, it is possible to detect that the communication device 300 does not exist in the subnet. Further, since it is detected that the communication device 300 does not exist in the subnet, it can be estimated that the mobile information terminal 500 does not exist in the facility 20. Further, since it is estimated that the mobile information terminal 500 is not present in the facility 20, it can be estimated that the user has left the facility 20. Moreover, since the predetermined condition includes that communication with the communication device 300 fails a predetermined number of times, it is possible to detect that the communication device 300 does not exist in the subnet. Furthermore, since the output information includes information for confirming with the user whether to leave the facility 20, it is possible to accurately confirm that the user has left. Furthermore, since the output information includes information requesting deletion of information regarding the user registered in the communication device 300, the information regarding the user can be deleted.

An overview of one aspect of the present disclosure is as follows. A control method according to an aspect of the present disclosure is a method for controlling a mobile personal digital assistant (500), which includes the steps of communicating with a communication device (300) of a management system installed in a facility; If the communication with the portable information terminal (500) satisfies a predetermined condition, a step of estimating whether the user of the mobile information terminal (500) leaves the facility (20), and a step of outputting information based on the evacuation estimation result. , is provided.

The step of communicating may include transmitting a search signal (700) for searching for the communication device (300) and receiving a response signal (710) from the communication device (300) that has received the search signal (700). good.

The predetermined condition may include no communication with the communication device (300) for a predetermined period of time.

The predetermined condition may include that communication with the communication device (300) fails a predetermined number of times.

The information output in the outputting step may include information for confirming to the user whether to leave the facility (20).

The information output in the outputting step may include information requesting deletion of information related to users registered in the communication device (300).

(Example 2)
Next, Example 2 will be explained. In the second embodiment, as in the first embodiment, communication between the entrance handset 100 and the mobile information terminal 500 is performed in response to a call request from the entrance handset 100 to the master unit 200 in the intercom system 10 installed in the facility. The present invention relates to a communication system 1000 that executes. In the first embodiment, the user's departure from the facility 20 is estimated by the mobile information terminal 500. On the other hand, in the second embodiment, the communication device 300 estimates that the user leaves the facility 20 . The configurations of the entrance slave unit 100, the room base unit 200, the communication device 300, and the mobile information terminal 500 according to the second embodiment are of the same type as those shown in FIGS. 2 and 3. Here, we will mainly explain the differences from the previous version.

(1) Basic operation of the intercom system 10, (2) Communication operation between the entrance handset 100 and the mobile information terminal 500 outside the facility 20, (3) Communication between the entrance handset 100 and the mobile information terminal 500 inside the facility 20. The operation is similar to the first embodiment. Here, (4) estimating operation for leaving will be explained.

(4) Estimating operation for leaving As in the first embodiment, the control unit 550 of the mobile information terminal 500 in FIG. 3 generates a search signal 700 for searching for the communication device 300. The search signal 700 may be the aforementioned M-Search Request, but is not limited thereto. The second communication method communication unit 542 periodically multicast transmits the search signal 700 using the second communication method. The second communication unit 342 of the communication device 300 in FIG. 2 receives the search signal 700. The control unit 350 generates a response signal 710 in response to the search signal 700. The destination of the response signal 710 is the mobile information terminal 500. The second communication unit 342 unicast transmits the response signal 710. The second communication method communication unit 542 of the mobile information terminal 500 in FIG. 3 receives the response signal 710 from the communication device 300 that received the search signal 700 using the second communication method. When the control unit 550 receives the response signal 710 to the search signal 700, it confirms that the communication device 300 to be searched exists in the subnet to which the second communication method communication unit 542 is connected. That is, communication between the communication device 300 and the mobile information terminal 500 includes receiving the search signal 700 from the mobile information terminal 500 and transmitting a response signal 710 to the mobile information terminal 500 in response to the received search signal 700. .

In such processing, the control unit 350 of the communication device 300 in FIG. 2 determines that the mobile information terminal 500 exists in the subnet, that is, the facility 20. Confirm that the mobile information terminal 500 exists in the mobile information terminal 20. On the other hand, when the second communication unit 342 does not receive the search signal 700, the control unit 350 of the communication device 300 in FIG. 2 measures the period during which the second communication unit 342 does not receive the search signal 700. Control unit 350 estimates that the user of mobile information terminal 500 will leave facility 20 when communication with mobile information terminal 500, that is, reception of search signal 700 from mobile information terminal 500 satisfies a predetermined condition. The predetermined condition is that no communication with the mobile information terminal 500 has been made for a predetermined period of time, that is, the search signal 700 from the mobile information terminal 500 has not been received for a predetermined period of time.

The control unit 350 generates information including the status of the communication device 300 and software version information. The second communication unit 342 periodically notifies the external server of information via the router 400 and the network 420. Here, when the control unit 350 estimates that the user is leaving, information regarding the period during which the search signal 700 is not received is added to the software version information. Further, the information sent from the communication device 300 to the external server may include information requesting deletion of information regarding the user registered in the communication device 300 (hereinafter also referred to as “deletion request”). .

The server operator of the external server makes a call or sends a message to the user of the mobile information terminal 500 based on the information received from the communication device 300 to determine whether to stop the service. When stopping the service, the external server sends a deletion request to the communication device 300. The deletion request includes identification information of information regarding the user to be deleted. Again, the external server may automatically send the deletion request upon receiving the deletion request.

The second communication unit 342 of the communication device 300 in FIG. 2 receives a deletion request from an external server. Upon receiving the deletion request from the second communication unit 342, the control unit 350 extracts identification information of information regarding the user to be deleted. The control unit 350 deletes the information regarding the user corresponding to the extracted identification information from the storage unit 360.

The operation of the communication system 1000 with the above configuration will be explained. FIG. 9 is a sequence diagram showing a processing procedure by the communication system 1000. Mobile information terminal 500 multicast transmits search signal 700 (S100). Communication device 300 unicast transmits response signal 710 to mobile information terminal 500 (S102). The communication device 300 notifies the external server of the information (S104). If the communication device 300 does not receive the search signal 700 for a predetermined period of time, it estimates that the communication device 300 will move out (S106). The communication device 300 notifies the external server of information including the deletion request (S108). The external server transmits a deletion request to the communication device 300 (S110). The communication device 300 deletes information regarding the user (S112).

FIG. 10 is a flowchart showing a processing procedure by the communication device 300. If the second communication unit 342 receives the search signal 700 from the mobile information terminal 500 (Y in S150), the second communication unit 342 transmits the response signal 710 to the mobile information terminal 500 (S152), and returns to step 150. . If the second communication unit 342 does not receive the search signal 700 from the mobile information terminal 500 (N at S150), and if the predetermined period has not elapsed (N at S154), the process returns to step 150. If a predetermined period of time has elapsed (Y in S154), the control unit 350 estimates that the user will move out (S156).

According to this embodiment, when the communication with the mobile information terminal 500 satisfies a predetermined condition, it is estimated that the user of the mobile information terminal 500 will leave the facility 20, so the user's departure from the facility 20 is automatically determined. It can be estimated. Furthermore, since information based on the estimated result of leaving is output, the estimated result of leaving can be notified to an external server. Since the estimated result of leaving is notified to the external server, information about the user can be deleted. Further, since communication with the mobile information terminal 500 includes receiving the search signal 700 and transmitting the response signal 710, the existence of the communication device 300 can be confirmed.

Moreover, since the predetermined condition includes that no communication with the portable information terminal 500 has been made for a predetermined period of time, it is possible to detect that the portable information terminal 500 does not exist in the subnet. Further, since it is detected that the mobile information terminal 500 does not exist in the subnet, it can be estimated that the mobile information terminal 500 does not exist in the facility 20. Further, since it is estimated that the mobile information terminal 500 is not present in the facility 20, it can be estimated that the user has left the facility 20. Furthermore, since the output information includes information requesting deletion of information regarding the user registered in the communication device 300, the information regarding the user can be deleted.

An overview of one aspect of the present disclosure is as follows. Another aspect of the disclosure is a management system. This management system is a management system provided in a facility (20), and includes a communication device (300) that communicates with a mobile personal digital assistant (500). When communication with the mobile information terminal (500) satisfies predetermined conditions, the communication device (300) estimates whether the user of the mobile information terminal (500) will leave the facility (20), and displays the estimated result of the departure. Outputs information based on.

Communication with the mobile information terminal (500) in the communication device (300) involves receiving a search signal (700) from the mobile information terminal (500) for searching for the communication device (300), and receiving the received search signal. (700), and transmitting a response signal (710) to the mobile information terminal (500).

The predetermined condition may include no communication with the mobile information terminal (500) for a predetermined period of time.

The information output from the communication device (300) may include information requesting deletion of information related to users registered in the communication device (300).

The present disclosure has been described above based on examples. It will be understood by those skilled in the art that this example is merely an example, and that various modifications can be made to the combinations of these components or processing processes, and that such modifications are also within the scope of the present disclosure. .

Any combination of Examples 1 and 2 is also possible. According to this modification, it is possible to obtain the effect of the combination.

In the first and second embodiments, the communication system 1000 includes an intercom system 10. However, the present invention is not limited thereto, and for example, the communication system 1000 may include a power management system such as a HEMS (Home Energy Management System). At that time, instead of a call request from intercom system 10, a connection to mobile information terminal 500 is executed based on an abnormality notification from the power management system. Here, the intercom system 10 and the power management system may be combined as a management system. According to this modification, the degree of freedom in configuration can be improved.

10 intercom system (management system), 20 facility, 100 entrance handset, 110 processing unit, 112 imaging unit, 114 microphone, 116 speaker, 118 monitor, 120 IF unit, 130 operation unit, 140 communication unit, 200 main room unit, 210 processing unit, 214 microphone, 216 speaker, 218 monitor, 220 IF unit, 230 operation unit, 240 communication unit, 250 control unit, 300 communication device, 340 first communication unit, 342 second communication unit, 350 control unit, 360 storage unit, 400 router, 410 access point, 420 network, 430 activation server, 440 base station device, 450 call control server, 500 mobile information terminal (terminal device), 510 processing unit, 514 microphone, 516 speaker, 518 monitor, 520 IF section, 530 operation section, 540 first communication method communication section, 542 second communication method communication section, 550 control section, 560 storage section, 1000 communication system.

Claims (10)

A method for controlling a mobile terminal device, the method comprising:
communicating with a communication device of a management system provided in the facility;
If communication with the communication device satisfies a predetermined condition, estimating that the user of the terminal device will leave the facility;
outputting information based on the evacuation estimation result;
A control method comprising:
The information outputted in the outputting step includes information requesting deletion of information related to the user registered in the communication device. A method for controlling a mobile terminal device, the method comprising:
communicating with a communication device of a management system provided in the facility;
If communication with the communication device satisfies a predetermined condition, estimating that the user of the terminal device will leave the facility;
outputting information based on the evacuation estimation result;
A control method comprising:
The predetermined condition includes no communication with the communication device for a predetermined period,
The information outputted in the outputting step includes information for confirming the user to leave the facility. 3. The control method according to claim 1, wherein the communicating step includes transmitting a search signal for searching for the communication device, and receiving a response signal from the communication device that has received the search signal. 2. The control method according to claim 1 , wherein the predetermined condition includes that communication with the communication device fails a predetermined number of times. A program for causing a computer to execute the control method according to claim 1 . A management system installed in a facility,
comprising a communication device for communicating with a mobile terminal device,
When the communication with the terminal device satisfies a predetermined condition, the communication device estimates whether the user of the terminal device will leave the facility, and outputs information based on the estimated result of leaving the facility;
A management system in which information output from the communication device includes information requesting deletion of information related to the user registered in the communication device. A management system installed in a facility,
comprising a communication device for communicating with a mobile terminal device,
When the communication with the terminal device satisfies a predetermined condition, the communication device estimates whether the user of the terminal device will leave the facility, and outputs information based on the estimated result of leaving the facility;
The predetermined condition includes no communication with the terminal device for a predetermined period,
A management system in which information output from the communication device includes information for confirming with the user whether to leave the facility . Communication with the terminal device in the communication device includes receiving a search signal for searching for the communication device from the terminal device, and transmitting a response signal to the terminal device in response to the received search signal. A management system according to claim 6 or 7 . A control method executed in the management system according to any one of claims 6 to 8 . A program to be executed by the management system according to claim 6 .

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