JP7300627B2 - Communication system, communication method, program - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to communication technology, and more particularly to a communication system, communication method, and program for controlling transfer of communication.

In an intercom system, when a resident responds to a call from a visitor's entrance slave unit with a room master unit, the entrance slave unit and the living room master unit are put into a communication state. In order to allow the resident to answer even when the resident is not near the room master unit, the room master unit calls the personal digital assistant when receiving the call from the entrance handset (for example, patent Reference 1).

Japanese Patent Application Laid-Open No. 2004-260735

When a mobile information terminal supports multiple types of communication methods, it is desired to execute communication suitable for the situation in which the mobile information terminal exists.

The present disclosure has been made in view of such circumstances, and an object thereof is to provide a technique for executing communication suitable for situations in which mobile information terminals exist.

In order to solve the above problems, a communication system according to one aspect of the present disclosure includes a first communication unit that receives a call request from a first terminal device, and a call signal that is transmitted when the first communication unit receives the call request. and when the second communication unit receives the response signal from the second terminal device in response to the call signal transmitted from the second communication unit using the first wireless communication method, the first communication method and uses the second communication method for communication between the first terminal device and the second terminal device if communication with the second terminal device by the second communication method is possible based on a different wireless second communication method. and a control unit that causes the When the second communication unit receives the response signal from the second terminal device using the first communication method, the control unit performs communication with the second terminal device using the second communication method based on the communication using the second communication method. If it is impossible, the communication between the first terminal device and the second terminal device is caused to use the first communication method , and the first communication unit, the second communication unit and the control unit communicate with the first terminal device. included in the communication device connected to the machine or master machine .

It should be noted that any combination of the above-described 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.

Advantageous Effects of Invention According to the present disclosure, it is possible to perform communication suitable for situations in which a mobile information terminal exists.

1(a) to 1(c) are diagrams showing the configuration of a communication system according to the first embodiment. 1(a) to 1(c) are diagrams showing configurations of the entrance slave unit, the living room master unit, and the communication device. FIG. 1(a) to 1(c) is a diagram showing the configuration of the portable information terminal. FIG. 4 is a diagram showing a screen displayed on the monitor of FIG. 3; FIG. 3 is a flow chart showing a communication procedure by the communication device of FIG. 2; 6(a) and 6(b) are diagrams showing the configuration of a communication system according to the second embodiment. FIG. 10 is a diagram showing a screen displayed on a monitor according to the second embodiment; FIG. 10 is a flowchart showing a communication procedure by a mobile information terminal according to Example 2;

(Example 1)
Before describing the present disclosure in detail, an overview will be given. The first embodiment is communication for executing communication between the entrance slave unit and a portable information terminal in response to a call request from the entrance slave unit to the living room master unit in an intercom system installed in a facility such as an apartment complex or a detached house. Regarding the system. The mobile information terminal, for example, supports a mobile phone system such as LTE (Long Term Evolution) (hereinafter referred to as "first communication method"), and also supports wireless LAN (Local Area Network) (hereinafter referred to as "second communication method"). ) corresponds to Here, it is assumed that the first communication method can be used both inside and outside the facility, but the second communication method can be used inside the facility and cannot be used outside the facility.

In the communication between the entrance handset and the portable information terminal, both audio and video may be transmitted. It is preferable to use the first communication method outside. On the other hand, it is preferable that the period from the call from the entrance slave unit to the start of communication between the entrance slave unit and the portable information terminal be as short as possible. In order to cope with these, the communication system according to the present embodiment uses the first communication method for processing from the call from the entrance slave unit to the connection between the entrance slave unit and the portable information terminal. do. Also, after the entrance slave unit and the portable information terminal are connected, if the portable information terminal exists inside the facility, the second communication method is used, and if the portable information terminal exists outside the facility, the first communication method is used. be done.

1(a)-(c) show the configuration of a communication system 1000. FIG. Communication system 1000 includes intercom system 10 , router 400 , access point 410 , network 420 , activation server 430 , base station device 440 , SIP (Session Initiation Protocol) 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 living room master device 200 and the communication device 300 are shown here as separate devices, they may be integrated by the living room master device 200 including the communication device 300 . In the intercom system 10, the communication device 300 has an arbitrary configuration. Intercom system 10 , router 400 and access point 410 are installed in facility 20 , and network 420 , activation server 430 , base station device 440 and SIP server 450 are installed outside facility 20 . The facility 20 is, for example, a detached house, an apartment complex such as an apartment, or a building such as an office or a factory.

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

The living room base unit 200 is installed inside the facility 20 . The living room base unit 200 connects the entrance cordless handset 100 and the communication device 300 via a dedicated line. When a user such as a resident presses down the response button of the living room master device 200 in response to a call from the entrance slave device 100, a conversation between the visitor and the user becomes possible between the entrance slave device 100 and the living room master device 200.例文帳に追加Become. The user in this embodiment can also use the personal digital assistant 500 to answer a call from the door station 100 .

The mobile information terminal 500 is, for example, a smart phone or a tablet terminal, and can be carried by the user to move inside and outside the facility 20 . Moreover, the mobile information terminal 500 has a wireless communication function corresponding to 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, portable information terminal 500 can execute an application program (hereinafter referred to as “call application”) for responding to calls in intercom system 10 .

In order to enable communication between portable information terminal 500 and entrance slave device 100 , room master device 200 is connected to communication device 300 , and communication device 300 is connected to router 400 . The communication device 300 performs conversion between the communication interface on the living room master device 200 side and the communication interface on the router 400 side. The router 400 connects access points 410 within the facility 20 and also connects a network 420 outside the facility 20 . The access point 410 is a wireless device capable of communicating with the mobile information terminal 500 within the facility 20 by performing communication according to the second communication method. Here, when the area where communication is possible with the access point 410 by the second communication method is called the first area, the facility 20 in which the intercom system 10 is installed is called the second area. Although the first area and the second area are assumed to match in this embodiment, it is sufficient that they at least partially overlap each other.

The network 420 is formed by wire, wireless, or a combination thereof, and is, for example, the Internet. An activation server 430 , a base station device 440 and a SIP server 450 are connected to the network 420 . Activation server 430 is a server for externally activating an application in portable information terminal 500, for example, a call application. The activation server 430 has, for example, APNS (Apple Push Notification Service) or FCM (Firebase Cloud Messaging) functions. Base station device 440 is a wireless device capable of communicating with mobile information terminal 500 inside or outside facility 20 by executing communication according to the first communication method. SIP server 450 is a server that establishes or disconnects a session between room master device 200 and mobile information terminal 500 .

The configuration and operation of the communication system 1000 will be described below using FIGS. 2 and 3 in addition to FIGS. 1(a) to 1(c). Here, (1) basic operation of the intercom system 10, (2) connection operation between the living room base unit 200 and the mobile information terminal 500, and (3) communication operation between the entrance slave unit 100 and the mobile information terminal 500 in the facility 20. , (4) the communication operation between the entrance cordless handset 100 and the portable information terminal 500 outside the facility 20 will be described in this order.

(1) Basic Operation of Interphone System 10 FIG. Entrance slave device 100 includes processing unit 110 , operation unit 130 and communication unit 140 , and processing unit 110 includes imaging unit 112 , microphone 114 , speaker 116 , monitor 118 and IF unit 120 . Room master device 200 includes processing unit 210 , operation unit 230 , communication unit 240 and control unit 250 , and processing unit 210 includes microphone 214 , speaker 216 , monitor 218 and IF unit 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 room base unit 200 includes communication device 300 and is integrated with them, communication unit 240 and first communication unit 340 may be common, and control unit 250 and control unit 350 may also be common. good too. If the entrance slave device 100 is, for example, a doorphone slave device, it may not include at least one of the imaging unit 112 and the monitor 118 . For example, the imaging unit 112 may be provided without the monitor 118 .

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

The imaging unit 112 is for photographing a visitor, 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 imaging device outputs the photoelectrically converted video signal to the IF section 120 . The IF section 120 performs various signal processing on the video signal from the imaging section 112 . Since well-known techniques may be used for various signal processing, description thereof is omitted here. IF section 120 outputs a video signal (hereinafter also referred to as “video signal”) that has undergone signal processing to communication section 140 .

A microphone 114 and a speaker 116 are user interfaces for a visitor to communicate with a resident. A 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 electric signal from the IF section 120 and outputs the sound. The IF unit 120 receives an electrical signal from the microphone 114 and converts it into a signal in a format for transmission (hereinafter referred to as "audio signal"). IF section 120 outputs the audio signal to communication section 140 . On the other hand, IF section 120 receives an audio signal from communication section 140 and converts the audio signal into an electrical signal. IF section 120 outputs the electrical signal to speaker 116 .

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

Communication unit 240 of living room base unit 200 has a communication function by a dedicated line, and executes communication with communication unit 140 of entrance slave unit 100 . Communication unit 240 also performs communication with first communication unit 340 of 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 living 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 . A monitor 218 displays an image captured by the imaging unit 112 of the entrance slave device 100 .

Control unit 250 receives a call request, a video signal, and an audio signal from entrance slave unit 100 via communication unit 240 . Upon receiving the call request, control unit 250 outputs a ringing tone from speaker 216 via IF unit 220 . Subsequently, the control unit 250 causes the monitor 218 to display an image obtained by reproducing the video signal via the IF unit 220, and outputs the sound obtained by reproducing the audio signal from the speaker 216 via the IF unit 220. . When the user who hears the ringing tone responds to the call by operating the operation unit 230 , the control unit 250 causes the communication unit 240 to communicate with the entrance slave device 100 . As a result, video signals and audio signals 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 living room master unit 200 is possible. A call is made.

(2) Connection operation between living room master device 200 and portable information terminal 500 In the above description, the user operates living room master device 200 to respond to a call from entrance slave device 100 . On the other hand, the user can also operate portable information terminal 500 to respond to a call from entrance cordless handset 100 . When the entrance slave device 100 is called a first terminal device, the portable information terminal 500 is called a second terminal device. In order to perform communication between entrance slave device 100 and mobile information terminal 500 , communication device 300 performs connection processing between room master device 200 and mobile information terminal 500 . Upon receiving a call request, video signal, and audio signal from entrance slave unit 100 via communication unit 240 , control unit 250 of living room base unit 200 causes communication device 300 to transmit a call request via communication unit 240 .

The first communication unit 340 of the communication device 300 can communicate with the communication unit 240 of the living room base unit 200 . First communication unit 340 receives the call request from communication unit 240 . This corresponds to receiving a call request from the entrance cordless handset 100 . First communication section 340 is connected to control section 350 , and second communication section 342 is also connected to control section 350 . The second communication unit 342 can communicate with the router 400 of FIG.

Control unit 350 controls the operation of communication device 300 and converts the signal format between first communication unit 340 and second communication unit 342 . Upon receiving a call request from first communication unit 340 , control unit 350 generates a signal (hereinafter referred to as “start request”) for requesting activation of a call application executed in portable information terminal 500 . The activation request includes identification information for identifying communication device 300 and identification information for identifying the calling application. Also, the destination of the activation request is set to the activation server 430 . Here, the identification information and the information of the destination activation server 430 are stored in the storage unit 360 . Control unit 350 outputs an activation request to second communication unit 342 , and second communication unit 342 transmits the activation request received from control unit 350 .

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

Activation server 430 has, as a first function, a table showing the correspondence relationship between the identification information of communication device 300 and the identification information of portable information terminal 500 . This can be said to be a table showing the correspondence relationship between the communication device 300 installed in the facility 20 and the mobile information terminal 500 to which the call is to be 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 . Activation server 430 extracts the identification information of communication device 300 from the activation request, and acquires the identification information of portable information terminal 500 associated with the identification information of communication device 300 by referring to the table.

As a second function, activation server 430 extracts the identification information of the calling application from the activation request. Activation server 430 transmits a signal for activating the calling application in portable information terminal 500 of the identification information acquired in the first function (hereinafter also referred to as "activation request"). The activation request is a signal for activating a calling application in response to a call in 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 path P2 in FIG. 1(a).

FIG. 3 shows the configuration of the portable information terminal 500. As shown in FIG. The mobile information terminal 500 includes a processing unit 510, a first communication method communication unit 540, a second communication method communication unit 542, a control unit 550, and a storage unit 560. The processing unit 510 includes a microphone 514, a speaker 516, a monitor 518, IF unit 520 and operation unit 530 are included. The first communication method communication unit 540 executes communication according to 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 according to the second communication method and is capable of communicating with the access point 410 in FIG. 1(a). A control unit 550 is connected to the first communication method communication unit 540 and the second communication method communication unit 542 , and the control unit 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 configured integrally as a touch panel display, for example.

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

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

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

SIP server 450 in FIG. 1A receives a call signal from communication device 300 . SIP server 450 extracts the identification information of mobile information terminal 500 from the received call signal. SIP server 450 acquires the address of mobile information terminal 500 corresponding to the extracted identification information of mobile information terminal 500 from the stored combination. SIP server 450 forwards the call signal to mobile information terminal 500 with the acquired address as the destination. The call signal includes the identification information of communication device 300 and the address of communication device 300 . The call signal is sent to portable information terminal 500 via network 420 and base station apparatus 440 along path P5 in FIG. 1(a).

First communication method communication unit 540 of portable information terminal 500 in FIG. 3 receives a call signal from SIP server 450 . Upon receiving the call signal from the first communication method communication unit 540, the control unit 550 extracts the identification information of the communication device 300 and the address of the communication device 300 included in the call signal. A call application executed in control unit 550 generates a screen for notifying the user of a call from communication device 300 and causes monitor 518 to display the screen.

FIG. 4 shows a screen displayed on monitor 518 . A display area 600 displays a message for notifying a call, such as "There was a call". Also, a call button 610 and an end button 620 are displayed below the display area 600 . The call button 610 is a button to be selected by the user when starting a call, and the end button 620 is a button to be selected by the user when not starting or ending a call. Return to FIG. When the user touches call button 610 or end button 620, operation unit 530 receives instructions from the user. Specifically, operation unit 530 accepts an instruction to answer a call when call button 610 is touched, and accepts an instruction to reject a call when end button 620 is touched. Operation unit 530 outputs the received instruction to control unit 550 .

Control unit 550 generates a response signal when receiving an instruction to respond. The destination of the response signal is set to the SIP server 450 . Control unit 550 outputs a response signal to first communication method communication unit 540, and first communication method communication unit 540 transmits the response signal. The response signal is sent to SIP server 450 via base station apparatus 440 and network 420 along path P6 in FIG. 1(a). SIP server 450 in FIG. 1A transmits a response signal to communication device 300 upon receiving a response signal from portable information terminal 500 . At that time, the response signal includes the address of the mobile information terminal 500 . The response signal is sent to communication device 300 via network 420 and router 400 along 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 SIP server 450 . Second communication section 342 outputs the response signal to control section 350 . Upon receiving the response signal from second communication unit 342, control unit 350 extracts the address of portable information terminal 500 from the response signal. As a result, communication device 300 and portable information terminal 500 acquire each other's addresses, and control unit 350 determines that the connection with portable information terminal 500 has been completed. Control unit 350 causes first communication unit 340 to transmit a notification for notifying completion of connection with mobile information terminal 500 (hereinafter referred to as “completion notification”) to living room master device 200 .

Communication unit 240 of living room master device 200 receives the completion notification from communication device 300 . Communication unit 240 outputs a completion notification to control unit 250 . Upon receiving the completion notification from communication unit 240 , control unit 250 recognizes completion of connection between living room master device 200 and mobile information terminal 500 by 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 the audio signal from the entrance slave device 100 to the communication device 300, and transmit the audio signal from the communication device 300 to the entrance slave device. 100. That is, the control unit 250 causes the communication unit 240 to perform relay processing between the entrance slave device 100 and the communication device 300 .

(3) Communication operation between the entrance slave device 100 and the mobile information terminal 500 in the facility 20 In FIG. It is connected to terminal 500 . At that time, the mobile information terminal 500 uses the second communication method communication unit 542 of FIG. The access point 410 holds information about the connected mobile information terminal 500 .

The control unit 350 of the communication device 300 in FIG. 2 requests the access point 410 in FIG. 1B to transmit information on the connected device via the second communication unit 342. The access point 410 transmits information on connected devices to the communication device 300 via the router 400 . Control unit 350 of communication device 300 in FIG. 2 receives information on devices connected to access point 410 via second communication unit 342 . This process may be performed when the connection between communication device 300 and mobile information terminal 500 is completed, or may be performed regardless of whether the connection between communication device 300 and mobile information terminal 500 is completed.

If mobile information terminal 500 is included in the received information, control unit 350 determines that communication with mobile information terminal 500 according to the second communication method is possible, and determines that mobile information terminal 500 is capable of communicating with mobile information terminal 500 based on the received information. Acquire the address when using the second communication method of . Subsequently, control unit 350 sets a route between second communication unit 342 and mobile information terminal 500 via router 400 and access point 410 . That is, the control unit 350 causes the second communication method to be used for communication between the entrance slave device 100 and the mobile information terminal 500 .

As shown in FIG. 1(b), the audio signal and video signal from the entrance slave unit 100 are transmitted along the path P8 to the mobile information terminal 500 via the living room base unit 200, the communication device 300, the router 400, and the access point 410. sent to Also, the audio signal from the portable information terminal 500 is sent to the entrance slave device 100 via the access point 410, the router 400, the communication device 300, and the living room master device 200 along the path P8. As a result, communication using the second communication method between the visitor who operates entrance slave device 100 and the user who operates portable information terminal 500 becomes possible. At that time, an image of the visitor may be displayed in the display area 600 shown in FIG.

(4) Communication operation between the entrance slave device 100 and the portable information terminal 500 outside the facility 20 In FIG. The terminal 500 is not connected. The access point 410 does not hold information on the personal digital assistants 500 that are not connected. As described above, the control unit 350 of the communication device 300 in FIG. 2 receives information on devices connected to the access point 410 in FIG. 1B via the second communication unit 342 . If the received information does not include the mobile information terminal 500, the control unit 350 determines that communication with the mobile information terminal 500 using the second communication method is impossible. Subsequently, control unit 350 sets a route between second communication unit 342 and mobile information terminal 500 via router 400 , network 420 and base station device 440 . That is, the control unit 350 causes the communication between the entrance slave device 100 and the mobile information terminal 500 to use the first communication method.

As shown in FIG. 1(c), the audio signal and video signal from the entrance child device 100 are transmitted along the route P8' through the living room master device 200, the communication device 300, the router 400, the network 420, and the base station device 440. and sent to the mobile information terminal 500 . Also, the audio signal from portable information terminal 500 is sent to entrance slave device 100 along path P8' via base station device 440, network 420, router 400, communication device 300, and living room master device 200. FIG. As a result, the visitor who operates entrance slave device 100 and the user who operates mobile information terminal 500 can communicate using the first communication method.

The subject of an apparatus, system, or method in this disclosure comprises a computer. The main functions of the device, system, or method of the present disclosure are realized by the computer executing the program. A computer has a processor that operates according to a program as its main hardware configuration. Any type of processor can be used as long as it can implement functions by executing a program. The processor is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or LSI (Large Scale Integration). 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 in a non-temporary recording medium such as a computer-readable ROM, optical disk, hard disk drive, or the like. The program may be pre-stored in a recording medium, or may be supplied to the recording medium via a wide area network including the Internet.

The operation of the communication system 1000 configured as above will be described. FIG. 5 is a flow chart showing a communication procedure by the communication device 300. As shown in FIG. The second communication unit 342 receives the response signal from the mobile information terminal 500 via the SIP server 450 using the first communication method (S10). If communication with the mobile information terminal 500 using the second communication method is possible via the access point 410 (Y in S12), the control unit 350 controls the connection between the entrance slave device 100 and the mobile information terminal 500 using the second communication method. communication is executed (S14). If communication with mobile information terminal 500 using the second communication method via access point 410 is not possible (N in S12), control unit 350 controls entrance child device 100 and mobile information terminal 500 using the first communication method. Communication is executed (S16).

According to the embodiment of the present disclosure, since the response signal to the call signal is received by the first communication method, it is possible to perform the processing up to the reception of the response signal using only the first communication method. Moreover, since the processing up to reception of the response signal is executed using only the first communication method, the period until reception of the response signal can be shortened. Further, if communication by the second communication method is possible, the second communication method is used for communication between the entrance cordless handset 100 and the portable information terminal 500, so communication is executed by preferentially using the second communication method. can. In addition, since communication is performed by preferentially using the second communication method, communication suitable for the situation where mobile information terminal 500 exists can be performed.

Further, if communication by the second communication method is impossible, the first communication method is used for communication between the entrance slave device 100 and the mobile information terminal 500, so communication can be executed even if the second communication method cannot be used. . In addition, since communication is performed using the first communication method, communication suitable for the situation in which mobile information terminal 500 is present can be performed. In addition, since a calling signal and a response signal are transmitted/received to/from portable information terminal 500 via SIP server 450, connection with portable information terminal 500 can be executed.

A summary of one aspect of the present disclosure is as follows. A communication system (1000) according to an aspect of the present disclosure includes a first communication unit (340) that receives a call request from a first terminal device, and when the first communication unit (340) receives a call request, a call signal A second communication unit (342) to transmit, and a second communication unit (342) receives a response signal from the second terminal device in response to the call signal transmitted from the second communication unit (342) using the first communication method. In this case, if communication with the second terminal device by a second communication method different from the first communication method is possible, control to use the second communication method for communication between the first terminal device and the second terminal device. (350). When the second communication unit (342) receives the response signal from the second terminal device using the first communication method, the control unit (350) controls whether communication with the second terminal device using the second communication method is impossible. For example, the first communication method is used for communication between the first terminal device and the second terminal device.

When the first communication unit (340) receives the call request, the second communication unit (342) transmits the activation request to the activation server (430) that activates the application in the second terminal device, and the activation server (430) The second terminal device whose application is started by sends a call signal to the second terminal device via a SIP (Session Initiation Protocol) server (450) in which the address is registered, and the second communication unit (342) sends the call signal to A response signal from the received second terminal device may be received via the SIP server (450).

The first terminal device may be a door station (100) of an intercom system (10), and the second terminal device may be a portable personal digital assistant (500).

(Example 2)
Next, Example 2 will be described. In the second embodiment, as in the first embodiment, communication between the entrance slave unit 100 and the portable information terminal 500 is performed in response to a call request from the entrance slave unit 100 to the living room master unit 200 in the intercom system 10 installed in the facility. relates to a communication system 1000 that implements In the first embodiment, after connecting the living room base unit 200 and the mobile information terminal 500 using the first communication method, the second communication method is used within the facility 20, and the first communication method is used outside the facility 20. communication method is used. At that time, communication device 300 determines whether or not the second communication method can be used. On the other hand, in the second embodiment, the portable information terminal 500 determines whether or not the second communication method can be used. The configurations of the entrance slave unit 100, the living room master unit 200, the communication device 300, and the portable information terminal 500 according to the second embodiment are of the same type as those shown in FIGS. Here we will focus on the differences.

6(a) and 6(b) show the configuration of the communication system 1000. FIG. Here, (1) activation of a calling application in the portable information terminal 500, (2) communication operation between the entrance slave device 100 and the portable information terminal 500 inside the facility 20, and (3) operation of the portable information terminal 500 outside the facility 20. will be explained in order.

(1) Activation of Call Application in Portable Information Terminal 500 As in the first embodiment, the control unit 250 of the living room base unit 200 in FIG. Upon receiving the voice signal, it causes communication device 300 to transmit a call request via communication unit 240 . In response, communication unit 240 transfers the call request from entrance slave device 100 to communication device 300 . First communication unit 340 of communication device 300 receives the call request from communication unit 240 . Upon receiving a call request from first communication unit 340 , control unit 350 outputs an activation request to second communication unit 342 , and second communication unit 342 transmits the activation request received from control unit 350 .

The activation request is sent to activation server 430 via router 400 and network 420 along path P1 in FIG. 6(a). Activation server 430 receives an activation request from communication device 300 . Activation server 430 identifies portable information terminal 500 as the destination based on the activation request. Activation server 430 transmits an activation request to identified mobile information terminal 500 . 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. 6(a).

The first communication method communication unit 540 of the portable information terminal 500 of FIG. 3 receives the activation request from the activation server 430 . Upon receiving an activation request from first communication method communication unit 540, control unit 550 activates the calling application stored in storage unit 560 based on the identification information of the calling application.

(2) Communication operation between the entrance slave unit 100 and the mobile information terminal 500 in the facility 20 The second communication method communication unit 542 of the mobile information terminal 500 in FIG. 3 can be connected to the access point 410 in FIG. Determine whether or not there is For example, second communication method communication unit 542 determines that connection to access point 410 is possible if the signal of the SSID (Service Set Identifier) set in access point 410 is received. On the other hand, second communication method communication section 542 determines that it is not connectable to access point 410 if the signal of the SSID set in access point 410 is not received. Such determinations are made periodically. Second communication method communication unit 542 outputs the determination result to control unit 550 . Here, when communication with the access point 410 is possible, that is, when the second communication method is available, the portable information terminal 500 exists within the facility 20 .

The paging application executed in control unit 550 causes first communication method communication unit 540 to transmit a registration signal when the determination result received from second communication method communication unit 542 indicates that access point 410 is connectable. The registration signal is sent to SIP server 450 via base station apparatus 440 and network 420 along path P3 in FIG. 6(b). Upon receiving the registration signal from mobile information terminal 500, SIP server 450 registers mobile information terminal 500 based on the registration signal.

Control unit 350 of communication device 300 in FIG. 2 outputs a call signal to second communication unit 342 , and second communication unit 342 transmits the call signal received from control unit 350 . The call signal is sent to SIP server 450 via router 400 and network 420 along path P4 in FIG. 6(b). SIP server 450 in FIG. 1A receives a call signal from communication device 300 . SIP server 450 transfers the call signal to portable information terminal 500 . The call signal is sent to mobile information terminal 500 via network 420 and base station apparatus 440 along path P5 in FIG. 6(b).

First communication method communication unit 540 of portable information terminal 500 in FIG. 3 receives a call signal from SIP server 450 . When control unit 550 receives a call signal from first communication method communication unit 540 , the call application executed in control unit 550 generates a screen for informing the user of the call from communication device 300 and displays the screen on monitor 518 . to display. This screen is similar to FIG. When receiving the response instruction, control unit 550 outputs a response signal to first communication method communication unit 540, and first communication method communication unit 540 transmits the response signal. The response signal is sent to SIP server 450 via base station apparatus 440 and network 420 along path P6 in FIG. 6(b). SIP server 450 in FIG. 6B transmits the response signal to communication device 300 upon receiving the response signal from portable information terminal 500 . The response signal is sent to communication device 300 via network 420 and router 400 along path P7 in FIG. 6(b).

The second communication unit 342 of the communication device 300 in FIG. 2 receives the response signal from the SIP server 450 . Control unit 350 determines that the connection with portable information terminal 500 has been completed. The control unit 350 causes the first communication unit 340 to transmit the completion notification to the living room base unit 200 . Communication unit 240 of living room master device 200 receives the completion notification from communication device 300 . When the control unit 250 receives the completion notification from the communication unit 240 , the control unit 250 recognizes that the communication device 300 has completed the connection between the room base unit 200 and the mobile information terminal 500 . Thereby, the control unit 250 causes the communication unit 240 to perform relay processing between the entrance slave device 100 and the communication device 300 .

Control unit 350 of communication device 300 sets a route between second communication unit 342 and mobile information terminal 500 via router 400 and access point 410 . That is, the control unit 350 causes the second communication method to be used for communication between the entrance slave device 100 and the mobile information terminal 500 . As shown in FIG. 6(b), the audio signal and video signal from the entrance slave unit 100 are transmitted along the route P8 to the portable information terminal 500 via the living room base unit 200, the communication device 300, the router 400, and the access point 410. sent to Also, the audio signal from the portable information terminal 500 is sent to the entrance slave device 100 along the path P8 via the access point 410, the router 400, the communication device 300, and the living room master device 200. FIG.

(3) Operation of the mobile information terminal 500 outside the facility 20 The second communication method communication unit 542 of the mobile information terminal 500 in FIG. 3 determines whether or not the access point 410 in FIG. 6B is connectable. . Here, when communication with the access point 410 is not possible, that is, when the second communication method is not available, the portable information terminal 500 exists outside the facility 20 . If the judgment result received from the second communication method communication unit 542 indicates that the access point 410 cannot be connected, the call application executed in the control unit 550 receives the call from the entrance slave device 100 as the activation request information. A screen is generated to inform the user of information about the occurrence of the error, and the screen is displayed on the monitor 518 .

FIG. 7 shows a screen displayed on monitor 518 . In the display area 600, for example, a message regarding the fact that there is a call such as "There was a visitor" is displayed. On the other hand, unlike the case of FIG. 4, the call button 610 and end button 620 are not shown below the display area 600 . Return to FIG. Control unit 350 ends the process when the screen is displayed on monitor 518 . Here, if the user has concluded a predetermined contract, the control unit 350 may use the first communication method as in the first embodiment to execute connection with the living room base unit 200 . At that time, the control unit 350 may generate a screen for prompting a user who has not concluded a prescribed contract to enter into a prescribed contract, and display the screen on the monitor 518 .

The operation of the communication system 1000 configured as above will be described. FIG. 8 is a flow chart showing a communication procedure by the portable information terminal 500. FIG. When the first communication method communication unit 540 receives the activation request by the first communication method (S100), the control unit 550 activates the calling application (S102). If the second communication method can be used (Y of S104), the calling application executed in the control unit 550 uses the second communication method in the second communication method communication unit 542 to communicate with the entrance slave device 100. (S106). If the second communication method cannot be used (N of S104), the calling application executed in control unit 550 displays a message to the effect that there is a call on monitor 518 (S108).

According to this embodiment, if it is determined that the intercom system 10 exists within the facility 20, and the first information about the intercom system 10 is obtained, the second information following the first information is obtained from the intercom system 10. , the second information can be obtained. Further, since the second information is acquired when the portable information terminal 500 exists within the facility 20, communication suitable for the situation in which the portable information terminal 500 exists can be executed. Further, when it is determined that the object exists outside the first area, if the first information is acquired, the information related to the first information is notified, so acquisition of the second information can be made unnecessary. Moreover, since acquisition of the second information becomes unnecessary, communication suitable for the situation where the mobile information terminal 500 exists can be executed.

Further, the first information is obtained by a first communication method, and the second information is obtained by a second communication method different from the first communication method and usable within the first area. Since it is acquired, it can be used by switching between the two communication methods. Further, when the second communication method is available, it is determined that the portable information terminal 500 exists within the first area, so determination accuracy can be improved. Also, since the first information is an activation request, the calling application can be activated and executed. Also, since the information on the first information includes information on the fact that there was a call, it is possible to inform the user of the fact that there was a call. Also, since the second information is voice information corresponding to a call, a call can be made with the entrance cordless handset 100 .

A summary of one aspect of the present disclosure is as follows. Another aspect of the present disclosure is a control method. This method is a method for controlling a mobile information terminal (500), comprising a step of determining whether the mobile information terminal (500) is inside or outside a first area; When it is determined that it exists in the first area, if the first information about the intercom system (10) provided in the second area that overlaps at least a part of the first area is obtained, the intercom system (10) from the intercom system (10) a step of acquiring second information following the first information; and a step of announcing information relating to the first information if the first information is acquired when it is determined that the portable information terminal (500) exists outside the first area. And prepare.

The first information is acquired by a first communication method, and the second information is acquired by a second communication method that is a second communication method that is different from the first communication method and that is usable within the first area. be.

The determining step determines that the portable information terminal (500) exists within the first area when the second communication method is available.

The first information may be an activation request for activating an application that enables acquisition of the second information in response to a call in the intercom system (10).

The information on the first information may include information on the fact that a call has been made. The second information may be voice information in response to a call.

The first information may include information about the state of the second area.

The present disclosure has been described above based on the embodiments. It should be understood by those skilled in the art that this embodiment is an example, and that various modifications are possible in the combination of each component or each treatment process, and such modifications are within the scope of the present disclosure. .

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

In Examples 1 and 2, the communication system 1000 includes the intercom system 10 . However, for example, the communication system 1000 may include a power management system such as HEMS (Home Energy Management System). At that time, connection to portable information terminal 500 is executed based on an abnormality notification in the power management system instead of a call request in intercom system 10 . Here, the intercom system 10 and the power management system may be combined as a management system. According to this modified example, the degree of freedom in configuration can be improved.

In Embodiments 1 and 2, an activation request or a call signal is transmitted to the portable information terminal 500 before communication between the entrance slave device 100 and the portable information terminal 500 is started. However, the information is not limited to this, and may be information about a state detected by a sensor installed in the facility 20, for example. According to this modified example, the degree of freedom in configuration can be improved.

10 intercom system 20 facility 100 entrance handset (first terminal device) 110 processing unit 112 imaging unit 114 microphone 116 speaker 118 monitor 120 IF unit 130 operation unit 140 communication unit 200 room parent machine, 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 . Monitor, 520 IF unit, 530 operation unit, 540 first communication method communication unit, 542 second communication method communication unit, 550 control unit, 560 storage unit, 1000 communication system.

Claims (5)

a first communication unit that receives a call request from the first terminal device;
a second communication unit that transmits a call signal when the first communication unit receives the call request;
When the second communication unit receives the response signal from the second terminal device in response to the call signal transmitted from the second communication unit using the first wireless communication method, If communication with the second terminal device by the second communication method is possible based on the second wireless communication method, the second communication method is used for communication between the first terminal device and the second terminal device. and a control unit that causes the use of
When the second communication unit receives the response signal from the second terminal device according to the first communication method, the control unit determines the response signal according to the second communication method based on the communication according to the second communication method. if communication with the second terminal device is impossible, causing the first communication method to be used for communication between the first terminal device and the second terminal device;
The first communication unit, the second communication unit, and the control unit are included in a parent device that communicates with the first terminal device or a communication device connected to the parent device,
Communications system. When the first communication unit receives the call request, the second communication unit transmits an activation request to an activation server that activates an application in the second terminal device, and the application is activated by the activation server. transmitting the call signal to the second terminal device via a SIP (Session Initiation Protocol) server in which the second terminal device registers an address;
2. The communication system according to claim 1, wherein said second communication unit receives said response signal from said second terminal device that has received said call signal via said SIP server. The first terminal device is an entrance slave device of an intercom system,
3. The communication system according to claim 1, wherein said second terminal device is a mobile information terminal. A communication method performed in a communication system according to any one of claims 1 to 3. A program to be executed by the communication system according to any one of claims 1 to 3.

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