JP7336764B2 - Intercom device, communication method, program - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to communication technology, and more particularly to an intercom device , communication method , and program for communicating information.

The interphone system includes a doorphone slave unit with a camera and an intercom master unit with a monitor television, and when a call button is pressed on the doorphone slave unit, an image is captured by the doorphone slave unit on the TV monitor of the intercom master unit. image is displayed (see, for example, Patent Document 1).

JP 2012-15974 A

When an intercom system is installed in a collective facility such as a condominium, an entrance device is installed at the entrance of the collective facility, and a housing information panel is installed at a facility in the collective facility, for example, a residence. A visitor call between is executed. Also, by connecting the sub-device installed in the facility to the housing information panel, the sub-device can execute visitor communication with the entrance device via the housing information panel. Furthermore, when a router for accessing the Internet is installed in a facility and a housing information board is connected to the router, a terminal device accessing the Internet via the router can communicate with the housing information board. As a result, the terminal device can also carry out a visitor call with the entrance device. Depending on the facility, a router may or may not be installed. Therefore, it is desirable to execute communication between the housing information panel and the sub-device without being affected by differences in network configuration.

The present disclosure has been made in view of such circumstances, and an object thereof is to provide a technique for performing communication without being affected by differences in network configurations.

In order to solve the above problems, an intercom device according to one aspect of the present disclosure is an intercom device that can be installed in a facility, and includes a communication unit that communicates with a communication device installed in the facility, and a control unit that controls the communication unit. and a storage unit capable of storing a first-type local address that cannot be converted to a global address and a second-type local address that can be converted to a global address. The communication unit uses the first type local address or the second type local address when communicating with the communication device.

Another aspect of the disclosure is a communication method. This method is a communication method for an intercom device that can be installed in a facility, and assigns a type 1 local address that cannot be converted to a global address to each of the intercom device and the communication device installed in the facility. a step of assigning, a step of assigning a second type local address convertible to a global address by a conversion device installed in a facility, the conversion device converting between a global address and a local address; and a communication device; a step of preferentially using the first type local address over the second type local address when communicating; and a step of using the second type local address when communicating with the conversion device. .

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.

According to the present disclosure, communication can be executed without being affected by differences in network configurations.

FIGS. 1(a) and 1(b) are diagrams showing the configuration of an intercom system according to an embodiment. FIGS. 2(a)-(c) are diagrams showing the configurations of the entrance device, the housing information panel, and the sub-devices of FIGS. 1(a)-(b). FIGS. 3(a) and 3(b) are diagrams showing the data structures of tables stored in the storage unit of FIG. 2(b). It is a flowchart which shows the setting procedure by the housing information panel of FIG.2(b). It is a flowchart which shows the transmission procedure by the housing information panel of FIG.2(b).

Before describing the present disclosure in detail, an overview will be given. The embodiment relates to an intercom system installed in collective facilities such as condominiums and apartments. In a collective facility, a plurality of facilities such as residences are gathered together, and at least one common entrance allows people to enter and exit. When a visitor operates an entrance device such as a lobby intercom installed at a common entrance, a housing information board installed at the facility of the visit destination is called. In response to the call, the resident of the facility confirms the visitor by operating the housing information panel. When the resident responds to the call by operating the housing information panel, a visitor call is made between the entrance device and the housing information panel. Also, in facilities, the secondary device may be installed in a room different from the room where the housing information panel is installed. By communicating with the housing information board, the secondary device executes a visitor call with the entrance device via the housing information board, or executes an extension call with the housing information board.

In addition, the facility may be equipped with a router for accessing the Internet. Terminal devices such as smart phones, tablets, and PCs access the Internet via routers. When the housing information board is connected to this router, communication between the housing information board and the terminal device becomes possible via the router. Therefore, the terminal device executes a visitor call with the entrance device via the housing information board. A network for realizing such processing can be realized with a simple configuration by directly connecting the housing information panel, sub-devices, and terminal devices to the router.

Such a network configuration is suitable for residential establishments desiring access to the Internet. However, at residents' facilities who do not wish to access the Internet, such a network configuration is not feasible because routers are not installed. Also, since the home information board and sub-devices are included in the home facility, communication between the home information board and the sub-devices should be tested before the router is installed by the resident. Therefore, it is desirable to execute communication between the housing information panel and the sub-device without being affected by differences in network configuration due to the presence or absence of a router.

In the intercom system according to this embodiment, a relay device is installed in a facility, and a housing information panel and a sub device are connected to the relay device. A first class local address is assigned to the housing information board and the sub-device, and since the housing information board and the sub-device communicate using the first class local address, communication is possible without a router. When installing a router in a facility, the router is connected to a repeater. The terminal device connected to the router, and the housing information panel and sub-device connected to the router via the relay device are given second-class local addresses. A second-class local address is an address that can be converted to a global address in a router, and is an address that is used when accessing the Internet via the router. The type 2 local address is also used in communication between the housing information board or sub-device and the terminal device. In other words, two types of local addresses are assigned to the housing information board and the secondary device, and these use two types of local addresses depending on the communication partner.

1(a) and 1(b) show the configuration of an intercom system 1000. FIG. 1A shows the configuration before the router 700 is installed (hereinafter referred to as the "first stage configuration"), and FIG. 2-stage configuration”). The interphone system 1000 may be used as it is in the configuration of the first stage, or may be used after being changed from the configuration of the first stage to the configuration of the second stage.

In FIG. 1(a), the collective facility 100 includes a first facility 110a, a second facility 110b, and a third facility 110c, collectively referred to as facility 110. In FIG. The intercom system 1000 includes an entrance device 200, a control device 300, a common trunk line 310, an occupied trunk line 320, a housing information panel 400, a relay device 500, a first sub device 600a, a second sub device 600b, which are collectively referred to as sub devices 600, Door slave unit 850 is included. The number of facilities 110 in the collective facility 100 is not limited to "3", and the number of secondary devices 600 is not limited to "2". The housing information board 400, the relay device 500, and the secondary device 600 are shown only in the first facility 110a, but are also included in the second facility 110b and the third facility 110c. When housing information board 400 is called an information terminal, secondary device 600 is called a communication device.

The intercom system 1000 includes a main line system including a gateway device 200 , a control device 300 and a housing information board 400 and an extension system including a housing information board 400 and a secondary device 600 . The intercom system 1000 can execute visitor call processing and extension line call processing. The visitor call processing is voice and image call processing between the housing information panel 400 or the secondary device 600 and the entrance device 200, and the extension call processing is voice call processing between the housing information panel 400 and the secondary device 600. processing. In the following, (1) visitor call processing in the trunk system, (2) visitor call processing and extension call processing in the configuration of the first stage, and (3) visitor call processing and extension call processing in the configuration of the second stage will be described in this order. .

(1) Visitor Call Processing in Trunk Line System In a complex facility 100, a plurality of facilities 110 are assembled. An example of the collective facility 100 is an apartment, and an example of the facility 110 is a residence. An entrance device 200 is installed at the common entrance of the collective facility 100 . The entrance device 200 is, for example, a lobby intercom installed in the lobby of an apartment building. 2(a)-(c) show configurations of the entrance device 200, the housing information panel 400, and the sub device 600. FIG. FIG. 2(a) shows the configuration of the entrance device 200. As shown in FIG. The entrance device 200 includes a processing unit 210 , an operation unit 230 , a control unit 240 and a communication unit 250 , and the processing unit 210 includes an imaging unit 212 , a microphone 214 , a speaker 216 , a monitor 218 and an IF unit 220 .

The operation unit 230 of the entrance device 200 is a user interface for accepting visitor's operation, such as a call button. Upon receiving the number of the facility 110 to be visited from the visitor, operation unit 230 outputs a call request to control unit 240 . Further, when the operation unit 230 is operated by the visitor, the processing unit 210 operates.

The imaging unit 212 includes a solid-state imaging device such as a CMOS (Complementary Metal Oxide Semiconductor) image sensor or a CCD (Charge Coupled Device) image sensor, and photographs a visitor. The solid-state imaging device outputs the photoelectrically converted video signal to the IF section 220 . The IF section 220 performs various signal processing on the video signal from the imaging section 212 . Since well-known techniques may be used for various signal processing, description thereof is omitted here. IF section 220 outputs a video signal (hereinafter also referred to as “video signal”) that has undergone signal processing to control section 240 .

A microphone 214 and a speaker 216 are user interfaces for a visitor to communicate with a resident. The microphone 214 collects the visitor's voice, converts it into an electrical signal, and outputs it to the IF section 220 . The IF unit 220 receives an electrical signal from the microphone 214 and converts it into a signal in a format for transmission (hereinafter referred to as an "audio signal"). IF section 220 outputs the audio signal to control section 240 . On the other hand, IF section 220 receives an audio signal from control section 240 and converts the audio signal into an electrical signal. IF section 220 outputs the electrical signal to speaker 216 . A speaker 216 reproduces the electric signal from the IF section 220 and outputs the sound.

A monitor 218 displays messages and the like. IF section 220 receives a message signal from control section 240 and outputs the message signal to monitor 218 . The message signal may be generated at the gateway device 200 . The control unit 240 controls the operation of the entrance device 200 . Control unit 240 is connected to communication unit 250 . The communication unit 250 is connected to the control device 300 via the common trunk line 310 and communicates with the housing information board 400 via the control device 300 . Specifically, the communication unit 250 transmits a call request and a video signal to the housing information board 400, and also transmits and receives an audio signal and a message signal to and from the housing information board 400, but the signals are not limited to these. . 2(b)-(c) will be described later, returning to FIG. 1(a).

The control device 300 is installed in a shared space such as a machine room or janitor's room, and relays signals between the entrance device 200 and the housing information board 400 . At that time, the control device 300 extracts the destination information included in the signal from the entrance device 200, and transmits the signal to the destination housing information board 400 indicated in the extracted information. The common trunk line 310 and the occupied trunk line 320 are transmission paths for transmitting a call request from the entrance device 200, a response signal from the housing information board 400, and the like, and are, for example, dedicated lines. The above-described call request, video signal, audio signal, and message signal are transmitted to the shared trunk line 310 and the occupied trunk line 320 .

The housing information board 400 is installed in the facility 110 and is also called a dwelling unit unit, a dwelling unit terminal, a living room master unit, or a dwelling unit master unit. FIG. 2(b) shows the configuration of the housing information board 400. As shown in FIG. The housing information board 400 includes a processing unit 410, an operation unit 430, a control unit 440, a first communication unit 450, a second communication unit 460, and a storage unit 470. The processing unit 410 includes a microphone 414, a speaker 416, a monitor 418, IF section 420 is included.

The first communication unit 450 is connected to the control device 300 via the occupied main line 320 and communicates with the entrance device 200 via the control device 300 . A control unit 440 is connected to the first communication unit 450 , and the control unit 440 controls the operation of the housing information board 400 . An IF section 420 and an operation section 430 are connected to the control section 440 , and a microphone 414 , a speaker 416 and a monitor 418 are connected to the IF section 420 . Here, the microphone 414 , the speaker 416 , the IF section 420 and the operating section 430 are configured similarly to the microphone 214 , the speaker 216 , the IF section 220 and the operating section 230 . A monitor 418 displays an image captured by the imaging unit 212 of the entrance apparatus 200 .

Control unit 440 receives a call request, video signal, and audio signal from entrance apparatus 200 via first communication unit 450 . Upon receiving the call request, control unit 440 outputs a ringing tone from speaker 416 via IF unit 420 . Subsequently, the control unit 440 causes the monitor 418 via the IF unit 420 to display an image obtained by reproducing the video signal, and outputs a sound obtained by reproducing the audio signal from the speaker 416 via the IF unit 420. . When the resident who hears the ringing tone responds to the call by operating the operation unit 430 , the control unit 440 causes the first communication unit 450 to communicate with the entrance device 200 . As a result, a video signal is transmitted from the communication unit 250 to the first communication unit 450, and an audio signal is communicated between the communication unit 250 and the first communication unit 450, thereby allowing the visitor operating the entrance device 200 to and the resident who operates the housing information panel 400 is communicated. FIG. 2(c) will be described later, returning to FIG. 1(a).

(2) Visitor call processing and extension call processing in the configuration of the first stage The relay device 500 has a communication function compatible with a wireless communication system such as a wireless LAN (Local Area Network), and receives housing information included in the extension system. It relays signals between the board 400 and the secondary device 600 . The relay device 500 is, for example, an AP (Access Point) mode router. In the AP mode router, the wireless communication function is enabled, but the router function is disabled. The secondary device 600 is also called a sub-master or a monitor-equipped sub-master, and is capable of executing visitor call processing and extension call processing via the housing information board 400 .

FIG. 2(c) shows the configuration of the secondary device 600. As shown in FIG. The secondary device 600 includes a processing section 610 , an operation section 630 , a control section 640 and a communication section 650 , and the processing section 610 includes a microphone 614 , a speaker 616 , a monitor 618 and an IF section 620 . Microphone 614 , speaker 616 , monitor 618 , IF section 620 and operation section 630 are configured in the same manner as microphone 414 , speaker 416 , monitor 418 , IF section 420 and operation section 430 . Communication unit 650 has a communication function compatible with the same wireless communication system as relay device 500 . The communication unit 650 is connected to the relay device 500 and executes communication with the housing information board 400 via the relay device 500 in the extension call processing. Further, the communication unit 650 executes communication with the entrance device 200 via the relay device 500, the housing information panel 400, and the control device 300 in the visitor call processing. A control unit 640 is connected to the communication unit 650 , and the control unit 640 controls the operation of the secondary device 600 .

In the following, (A) type 1 local address assignment processing, (B) visitor call processing, and (C) extension call processing will be described in this order.
(A) Type 1 Local Address Allocation Processing The second communication unit 460 in FIG. Second communication unit 460 can communicate with relay device 500 and can communicate with secondary device 600 via relay device 500 . The control unit 440 has a DHCP (Dynamic Host Configuration Protocol) function, and assigns a private IP (Internet Protocol) address to each of the housing information panel 400 and the secondary device 600 . A publicly known technique may be used for allocating the private IP address by the DHCP function, so the explanation is omitted here. In the following description, private IP addresses are referred to as first-class local addresses. The first class local address is an IP address used only for communication between the housing information board 400 and the secondary device 600 .

Storage unit 470 stores a type 1 local address. 3A and 3B show data structures of tables stored in the storage unit 470. FIG. FIG. 3(a) shows the table in the configuration of the first stage. As shown in the figure, the type 1 local addresses for each of the housing information board 400, the first secondary device 600a, and the second secondary device 600b are stored. FIG.3(b) is mentioned later and it returns to FIG.2(b).

(B) Visitor Call Processing As described above, the control unit 440 of the housing information panel 400 receives a call request, video signal, and audio signal from the entrance device 200 via the first communication unit 450 . Control unit 440 transmits a call request, video signal, and audio signal from second communication unit 460 . At that time, the type 1 local address of the housing information panel 400 is set as the source IP address of the call request, video signal, and audio signal. Also, the type 1 local addresses of the first secondary device 600a and the second secondary device 600b are set as the destination IP addresses of the call request, video signal, and audio signal. A broadcast address may be set for these destination IP addresses. The call request, video signal, and audio signal transmitted from second communication unit 460 are received by first secondary device 600a and second secondary device 600b via relay device 500 in FIG. 1(a).

The communication unit 650 of the secondary device 600 in FIG. 2(c) receives the call request, video signal, and audio signal. When communication unit 650 receives the call request, control unit 640 outputs a ringing tone from speaker 616 via IF unit 620 . When the communication unit 650 receives the video signal and the audio signal, the control unit 640 causes the monitor 618 via the IF unit 620 to display an image obtained by reproducing the video signal, and outputs audio from the speaker 616 via the IF unit 620. Outputs the sound of the reproduced signal. When the resident who hears the ringing tone responds to the call by operating the operation unit 630 , the control unit 640 notifies the housing information board 400 of the response via the communication unit 650 . Causes communication with the device 200 to occur. As a result, a video signal is transmitted from communication unit 250 to communication unit 650 via housing information panel 400 and relay device 500 . Also, voice signals are communicated between the communication unit 250 and the communication unit 650 via the housing information board 400 and the relay device 500 . With these, a call between the visitor who operates the entrance device 200 and the resident who operates the secondary device 600 is executed.

(C) Extension Call Processing An extension call is communication between at least two of the housing information board 400, the first secondary device 600a, and the second secondary device 600b. Here, for the sake of simplicity of explanation, it is assumed that after housing information panel 400 calls first secondary device 600a, communication takes place between housing information panel 400 and first secondary device 600a. . Operation unit 430 of housing information board 400 shown in FIG. 2B outputs a call request to control unit 440 upon receiving information on first sub-device 600a to be communicated from the first resident. Further, when the operation unit 430 is operated by the first resident, the processing unit 410 operates. Processing unit 410 operates similarly to processing unit 210 . Second communication unit 460 transmits a call request and a voice signal to first sub device 600a via relay device 500 . At this time, the source IP address is set to the type 1 local address of housing information panel 400, and the destination IP address is set to the first local address of first secondary device 600a.

The communication unit 650 of the secondary device 600 in FIG. 2(c) receives the call request and voice signal. When communication unit 650 receives the call request, control unit 640 outputs a ringing tone from speaker 616 via IF unit 620 . When communication unit 650 receives the audio signal, control unit 640 causes speaker 616 via IF unit 620 to output the reproduced audio signal. When the second resident who hears the ringing tone responds to the call by operating the operation unit 630, the control unit 640 notifies the response to the housing information board 400 via the communication unit 650. to execute communication with the housing information panel 400 . As a result, voice signals are communicated between the housing information board 400 and the first secondary device 600a. As a result, a call is made between the first resident who operates the housing information board 400 and the second resident who operates the first secondary device 600a.

Such an extension call is the same even when communication is made between housing information board 400 and first sub-device 600a after first sub-device 600a calls home information board 400. FIG. The same is true between the housing information panel 400 and the second secondary device 600b. Further, the extension call is similarly executed between the first sub-device 600a and the second sub-device 600b via the housing information panel 400 and the relay device 500. FIG. At that time, the first secondary device 600a obtains the type 1 local address of the second secondary device 600b by receiving the signal from the second secondary device 600b and the signal to the second secondary device 600b. Similarly, the second secondary device 600b also acquires the type 1 local address of the first secondary device 600a.

(3) Communication Operation in Second Stage Configuration In FIG. 1(b), a router 700, a network 710, a server 720, and a terminal device 800 are added to the configuration in FIG. 1(a). The number of terminal devices 800 included in intercom system 1000 is not limited to "1". A terminal device 800 is also included in the extension system. The router 700 is a device for connecting a network within the first facility 110a and a network 710 outside the first facility 110a. Network 710 includes the Internet, and server 720 is a device that performs predetermined processing on the Internet. A terminal device 800 is a communication device such as a smartphone, tablet, or PC. Terminal device 800 communicates with server 720 via network 710 by being connected to router 700 or relay device 500 in first facility 110a. Also, the terminal device 800 communicates with the server 720 by being connected to the network 710 outside the first facility 110a. In the following, (α) type 2 local address assignment processing, (β) visitor call processing, and (γ) extension call processing will be described in this order.

(α) Type 2 local address allocation processing Global IP addresses (hereinafter referred to as “global addresses”) are used in the network 710, and private IP addresses (hereinafter referred to as “second type local addresses”) are used within the first facility 110a. is used. Therefore, the router 700 can be said to be a translation device that translates between global addresses and type 2 local addresses. Here, the second type local address is an address that can be converted to a global address, and the first type local address is an address that cannot be converted to a global address, which are local addresses different from each other.

The router 700 has a DHCP function, and assigns a type 2 local address to each of the housing information panel 400, the secondary device 600 and the terminal device 800. FIG. As for the assignment of the type 2 local addresses by the DHCP function, a known technique may be used, so the explanation is omitted here. As a result of the allocation by the router 700, the housing information board 400 and the secondary device 600 are assigned a first class local address and a second class local address, and the terminal device 800 is assigned a second class local address. Terminal device 800 transmits a signal for requesting registration in housing information board 400 (hereinafter referred to as “registration request”). The type 2 local address of the terminal device 800 is set as the source IP address of the registration request, and the broadcast address is set as the destination IP address of the registration request.

The second communication unit 460 of the housing information board 400 in FIG. 2(b) receives the registration request. The control unit 440 registers the terminal device 800 based on the registration request. By registering the terminal device 800 , the housing information board 400 enables call processing for a visitor and extension call processing for the terminal device 800 . Storage unit 470 stores the first type local address and the second type local address. Fig. 3(b) shows a table in the configuration of the second stage; As shown, the first type local address and the second type local address for each of the housing information board 400, the first sub device 600a, and the second sub device 600b are stored. A type 2 local address for the terminal device 800 is stored. This is the second type local address included in the registration request. Here, the router 700 transmits the allocation result of the type 2 local address to the housing information board 400 via the relay device 500, and the storage unit 470 of the housing information board 400 stores the allocation result of the type 2 local address. You may Return to FIG. 1(b).

A network using type 1 local addresses (hereinafter referred to as a "type 1 local network") and a network using type 2 local addresses (hereinafter referred to as a "type 2 local network") are separate networks. . A first-class local network is a network composed of a housing information board 400 and a secondary device 600, and a second-class local network is composed of a housing information board 400, a secondary device 600, a router 700, and a terminal device 800. network. The housing information board 400 and the secondary device 600 are included in two types of networks, and the router 700 and the terminal device 800 are included in one type of network.

(β) Visitor Call Processing Visitor call processing is performed between the secondary device 600 or the terminal device 800 and the entrance device 200 . Of these, the visitor call processing performed between the secondary device 600 and the entrance device 200 is performed in the type 1 local network as in the configuration of the first stage, and the visitor call processing performed between the terminal device 800 and the entrance device 200 is performed. Processing is done in a type 2 local network.

In the visitor call processing performed in the type 2 local network, as described above, the control unit 440 of the housing information panel 400 receives a call request, video signal, and audio signal from the entrance device 200 via the first communication unit 450. . Control unit 440 transmits a call request, video signal, and audio signal from second communication unit 460 . At that time, the source IP address of the call request, video signal, and audio signal is set to the type 2 local address of the housing information panel 400, and the destination IP address of the call request, video signal, and audio signal is set to the terminal. A type 2 local address of the device 800 is set. That is, the second communication unit 460 uses the type 2 local address when communicating with devices included in the type 2 local network such as the router 700 and the terminal device 800 . The call request, video signal, and audio signal transmitted from second communication unit 460 are received by terminal device 800 via relay device 500 and router 700 in FIG. 1(b).

The terminal device 800 has a configuration similar to that of FIG. 2(c), and outputs a ringing tone upon receiving a call request. When the terminal device 800 receives the video signal and the audio signal, it displays the video obtained by reproducing the video signal and outputs the audio obtained by reproducing the audio signal. When the resident who hears the ringing tone responds to the call by operating the terminal device 800, the terminal device 800 communicates with the entrance device 200 by notifying the housing information board 400 of the response. . As a result, the video signal is transmitted from the communication unit 250 to the terminal device 800 via the housing information panel 400 , the relay device 500 and the router 700 . Voice signals are also communicated between the communication unit 250 and the terminal device 800 via the housing information panel 400 , the relay device 500 and the router 700 . With these, a call between the visitor who operates the entrance device 200 and the resident who operates the terminal device 800 is executed.

In the visitor call processing performed in the type 1 local network, the same processing as the above-described (B) visitor call processing is executed. Therefore, the second communication unit 460 of the housing information panel 400 in FIG. 2B preferentially uses the first-class local address over the second-class local address when communicating with the secondary device 600 and the terminal device 800. do. In other words, the second communication unit 460 uses the type 1 local address when communicating with devices included in both the type 1 local network and the type 2 local network. Thus, the second communication unit 460 uses the first type local address or the second type local address depending on the situation.

(γ) Extension Call Processing The extension call processing corresponds to a combination of (β) visitor call processing and (C) extension call processing. Therefore, for extension calls between the housing information panel 400 and the secondary device 600 and between the first secondary device 600a and the second secondary device 600b, the type 1 local address is used as in (C) extension call processing. be done. On the other hand, for extension calls between the housing information board 400 and the terminal device 800, between the secondary device 600 and the terminal device 800, and between a plurality of terminal devices 800, the second type local address is used. Furthermore, when housing information board 400 and secondary device 600 access server 720, housing information board 400 and secondary device 600 use the second type local address. At that time, the router 700 performs conversion from the type 2 local address to the global address.

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 intercom system 1000 configured as above will be described. FIG. 4 is a flow chart showing a setting procedure by the housing information board 400. As shown in FIG. Control unit 440 assigns a type 1 local address to secondary device 600 (S10). A type 2 local address is assigned to the second communication unit 460 by the router 700 (S12). The second communication unit 460 receives the registration request from the terminal device 800 (S14). The control unit 440 registers the type 2 local address of the terminal device 800 included in the registration request (S16).

FIG. 5 is a flow chart showing a transmission procedure by the housing information panel 400. FIG. If the communication target device has a type 1 local address (Y in S50), the second communication unit 460 uses the type 1 local address (S52). On the other hand, if the communication target device does not have a type 1 local address (N in S50), the second communication unit 460 uses a type 2 local address (S54). The second communication unit 460 transmits a signal using the first type local address or the second local address (S56).

According to this embodiment, since the first type local address or the second type local address is used, communication can be executed in each of the two types of network configurations. In addition, since communication is performed in each of the two types of network configurations, communication can be performed without being affected by differences in network configurations. In addition, since the first class local address or the second class local address is used, it is possible to secure communication between the housing information panel 400 and the secondary device 600 at least on the local network regardless of whether or not the router 700 is installed. Also, since the first-class local address or the second-class local address is used, Internet connection can be executed when the router 700 is installed. Also, since the first type local address and the second type local address are stored, the first type local address and the second type local address can be used.

In addition, when communicating with the secondary device 600, the type 1 local address is preferentially used over the type 2 local address, so the influence of communication interruption due to the status of the router 700 can be suppressed. In addition, since the influence of communication interruption due to the status of the router 700 is suppressed, the stability of communication can be improved. Also, since the first class local address or the second class local address is used, the router 700 is removed, and only the secondary device 600 loses the second class local address due to the problem of address resolution timing. Communication failure from the board 400 to the secondary device 600 can be prevented.

In addition, since a type 1 local address is assigned to each of the housing information board 400 and the secondary device 600, an address other than the type 2 local address assigned to the router 700 can be used. Also, since wireless communication is performed to communicate with the secondary device 600, a network can be easily constructed. In addition, since the type 2 local address is used when communicating with the router 700, access to the Internet can be executed by conversion to a global address in the router 700. FIG.

A summary of one aspect of the present disclosure is as follows. A housing information board (400) of one aspect of the present disclosure is a housing information board (400) that can be installed at a facility (110) and that communicates with a secondary device (600) installed at the facility (110). It comprises a communication unit (460) and a control unit (440) that controls the second communication unit (460). The second communication unit (460) uses a first type local address that cannot be converted to a global address or a second type local address that can be converted to a global address when communicating with the secondary device (600). .

A storage unit (470) for storing the first type local address and the second type local address may be further provided.

The second communication unit (460) may preferentially use the first type local address over the second type local address when communicating with the secondary device (600).

The control unit (440) assigns a first type local address to each of the housing information board (400) and the secondary device (600).

The second communication unit (460) may perform wireless communication to communicate with the secondary device (600).

The second communication unit (460) is a router (700) installed in the facility (110) and performs a second type local address may be used.

Another aspect of the disclosure is a communication method. This method is a communication method in the housing information panel (400) that can be installed in the facility (110), and the housing information panel (400) and the secondary device (600) installed in the facility (110) On the other hand, a step of allocating a first-class local address that cannot be converted to a global address; ) assigning a second-type local address convertible to a global address by a step of assigning the first-type local address over the second-type local address when communicating with the secondary device (600); and using the second type local address when communicating with a router (700).

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. .

In this embodiment, the type 1 local addresses for each of the housing information board 400 and the secondary device 600 are assigned by the DHCP function in the housing information board 400 . However, not limited to this, for example, the type 1 local address for each of the housing information board 400 and the secondary device 600 may be directly set by a resident or the like, or may be set by AUTOIP. According to this modified example, the degree of freedom in configuration can be improved.

In this embodiment, the housing information board 400 and the plurality of sub-devices 600 are connected by a wireless communication system via the relay device 500 . However, not limited to this, for example, the housing information board 400 and the plurality of secondary devices 600 may be connected by a wired communication system such as Ethernet (registered trademark). At that time, the housing information board 400 and the plurality of sub-devices 600 are also connected by alarm wiring connected to sensors and the like. According to this modified example, the degree of freedom in configuration can be improved.

The processes performed in the entrance apparatus 200 of this embodiment may be executed by the entrance slave machine 850 instead of the entrance apparatus 200. FIG. The entrance slave device 850 is a device installed at the entrance of the facility 110 . According to this modified example, the degree of freedom in configuration can be improved.

100 collective facility 110 facility 200 entrance device 210 processing unit 212 imaging unit 214 microphone 216 speaker 218 monitor 220 IF unit 230 operation unit 240 control unit 250 communication unit 300 control device 310 shared department trunk line 320 occupied trunk line 400 housing information panel (information terminal) 410 processing unit 414 microphone 416 speaker 418 monitor 420 IF unit 430 operation unit 440 control unit 450 first communication unit 460 second Communication Unit 470 Storage Unit 500 Relay Device 600 Sub Device (Communication Device) 610 Processing Unit 614 Microphone 616 Speaker 618 Monitor 620 IF Unit 630 Operation Unit 640 Control Unit 650 Communication Unit 700 Router (conversion device), 710 network, 720 server, 800 terminal device (communication device), 850 entrance handset (entrance device), 1000 intercom system.

Claims (7)

An intercom device that can be installed in a facility,
a communication unit that communicates with a communication device installed in the facility;
a control unit that controls the communication unit;
a storage unit capable of storing a first type local address that cannot be converted to a global address and a second type local address that can be converted to a global address;
The intercom device , wherein the communication unit uses the first type local address or the second type local address when communicating with the communication device. The intercom device according to claim 1, wherein the communication unit preferentially uses the first type local address over the second type local address when communicating with the communication device. The intercom device according to claim 1 or 2, wherein the control unit assigns the first type local address to each of the intercom device and the communication device. The intercom device according to any one of claims 1 to 3 , wherein the communication unit performs wireless communication to communicate with the communication device. 5. The communication unit uses the second type local address when communicating with a conversion device installed in the facility for converting between a global address and a local address. The intercom device according to any one of the above. A communication method in an intercom device that can be installed in a facility,
a step of assigning a first type local address that cannot be converted to a global address to each of the intercom device and the communication device installed in the facility;
being assigned a second-type local address convertible to a global address by a conversion device installed at the facility, the conversion device converting between a global address and a local address;
a step of preferentially using the first type local address over the second type local address when communicating with the communication device;
using the second type local address when communicating with the translation device;
A communication method comprising: A program for causing a computer system to execute the communication method according to claim 6.

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