JP2012209900A - Television intercom system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a television intercom system which can be connected to a network camera, a network, an indoor unit, a security device, a storage device and the like.SOLUTION: The television intercom system includes: an entrance slave unit with camera 1a, a master unit with monitor 2a, and a router 9 connecting the entrance slave unit with camera and the master unit with monitor for relaying a video signal and a sound signal, which are transmitted between the entrance slave unit with camera and the master unit with monitor. The router 9 includes: a first group of connection terminals 91 for connecting the plurality of entrance slave units with cameras and the plurality of master units with monitors without the need of conversion of an interphone communication protocol; a second group of connection terminals 92 for connecting a network camera 3 transmitting the video signal; a first signal conversion section 99a for converting a general-purpose network protocol into the interphone communication protocol; and a control section 99 for forming a signal transmission path.

Description

  The present invention relates to a TV door phone system, and in particular, a call between a master unit installed in a dwelling unit and an entrance slave unit with a camera installed at a front door can be transmitted to another device via a router. In addition, the present invention relates to a TV door phone system capable of connecting a network camera, a network, an indoor device, a security device, a storage device and the like to a router.

  Conventionally, as this type of TV door phone system, there is an entrance unit with a camera, a recording function for recording an image captured by the entrance unit with a camera, and a playback function for reproducing the recorded image. A TV door phone system, which is composed of a master unit with a monitor and an extension master unit, has a wireless communication function and a wired communication function, and can be connected to the Internet using a wireless communication or a wired communication and a network. A parent device is known that has a PHS card connected to a terminal adapter that supports the PHS data communication protocol and includes a PHS card registered in the terminal adapter and used for wireless extension calls with the additional parent device (for example, patents). Literature 1 etc.).

  According to such a TV door phone system, by installing the PHS card registered in the terminal adapter compatible with the PHS data communication protocol to the monitor-equipped master unit and the extension master unit, it is possible to perform a wireless extension call between the master units. Not only can this be possible, but connection to the Internet from the monitor-equipped master unit and the extension master unit via the terminal adapter can be performed using wireless communication or wired communication and a network.

  However, in such a conventional TV door phone system, the wiring is concentrated on the monitor-equipped master unit, the wiring of the equipment becomes complicated, and there is a limit in data transmission to the TV door phone side, and connection to the Internet Because of this, there was a problem that it was not scalable because it required another router.

JP 2004-153418 A

  The present invention has been made to solve the above-mentioned problems, and by installing a router between the camera-equipped slave unit and the monitor-equipped master unit, the network camera, the Internet provider, etc. can be connected via the router. An object of the present invention is to provide a TV door phone system that can be connected to indoor devices such as networks, personal computers, security devices such as security sensors, and storage devices such as hard disks.

  The TV door phone system according to the first aspect of the present invention outputs an audio signal between an entrance slave unit with a camera and a video signal captured by the entrance slave unit with a camera and between the entrance slave unit with a camera. Entrance slave unit with camera and monitor for relaying video signal and audio signal transmitted between master unit with monitor for sending and receiving and establishing a call, entrance slave unit with camera and master unit with monitor The router is configured to connect a plurality of main units with cameras and a plurality of parent units with monitors without requiring conversion of an interphone communication protocol. A connection terminal, a second group of connection terminals for connecting a network camera for transmitting a video signal by converting a general-purpose network protocol to an intercom communication protocol, and a second group of connection terminals. A first signal conversion unit for converting a general-purpose network protocol into an interphone communication protocol for the purpose of transmitting a received video signal to at least one of a plurality of monitor-equipped master units connected to the first connection terminal; And a control unit for forming a signal transmission path to the base unit with a monitor to which the video signals received at the two groups of connection terminals are to be transmitted.

  According to a second aspect of the present invention, in the television door phone system according to the first aspect, the router includes a third group of connection terminals for connecting a network via a network cable, and a first group of connection terminals. Intercom communication protocol to the network via the network cable connected to the third group of connection terminals, the video signal received by the camera, the security signal from at least one of the plurality of entrance units with cameras and the plurality of master units with monitors And a second signal conversion unit for converting the signal into a general-purpose network protocol.

  According to a third aspect of the present invention, in the TV door phone system according to the second aspect, the router includes a fourth group of connection terminals for connecting the indoor device via the indoor device cable, and a first connection terminal. A third signal conversion unit for transmitting at least one of the video signal and the security signal received at the third connection terminal to the network connected to the third connection terminal via the network cable; and the first connection terminal. A signal transmission path to an indoor device that should transmit at least one of the received video signal and security signal is formed, and from the network connected via the network cable received at the third group connection terminal. And a control unit for forming a signal transmission path to an indoor device to which the signal is to be transmitted.

  According to a fourth aspect of the present invention, in the TV door phone system according to the first aspect, the router includes a fifth group of connection terminals for connecting a security device having a security communication protocol, and a fifth connection terminal. A fourth signal conversion unit for converting the security communication protocol to the interphone communication protocol for the purpose of transmitting the received security signal from the security device to at least one of the plurality of entrance units with camera and the plurality of base units with monitor Are provided.

  According to a fifth aspect of the present invention, in the TV door phone system according to the fourth aspect, the monitor-equipped master unit receives a security signal from the security device and rings, and an indoor device or network And a setting unit for setting whether to transfer the security signal.

  According to a sixth aspect of the present invention, in the television door phone system according to any one of the first to fifth aspects, the router measures the signal flow rate in the router, and the signal flow rate is predetermined. When the threshold is exceeded, priority processing is performed on at least one of the video signal and the security signal received at the first connection terminal, and processing of signals other than at least one of the video signal and the security signal is blocked or A first flow rate suppressing unit for suppressing by delay time insertion or the like is provided.

  According to a seventh aspect of the present invention, in the TV door phone system according to the sixth aspect, the router exceeds a predetermined threshold value even though the router suppresses other signals other than at least one of the security signals. In the case where the second group of connection terminals and the fifth group of connection terminals are received, priority is given to signals received by at least one of the second group of connection terminals and the fifth group of connection terminals, and the other groups excluding the second group of connection terminals and the fifth group of connection terminals are excluded. A second flow rate suppression unit for suppressing the processing of the signal received at the connection terminal by blocking or inserting a delay time.

  According to an eighth aspect of the present invention, in the television door phone system according to the third aspect, the router connects the storage device and is connected to the connection terminals of the first group, the third group, and the fourth group, respectively. A video signal from a device connected to the sixth group of connection terminals and the first group, the third group, and the fourth group of connection terminals for enabling signal writing to the video signal is transmitted to the storage device. For the purpose, a fifth signal conversion unit for converting from an interphone communication protocol to a data format that can be processed by an indoor device is provided.

  According to the television door phone system according to the first aspect of the present invention, a plurality of camera-equipped slave units and a plurality of monitor-based master units are connected to a router that connects between the camera-equipped slave unit and the monitor-equipped master unit. A first group of connection terminals for connecting a network camera, a second group of connection terminals for connecting a network camera, a first signal converting unit for converting a general-purpose network protocol into an intercom communication protocol, and transmitting a video signal And a control unit for forming a signal transmission path to the monitor-equipped master unit, a general-purpose network camera can be used in the TV door phone system.

  According to the television door phone system according to the second aspect of the present invention, the router in the first operation example is connected to the third group of connection terminals for connecting the network, and the interphone communication protocol is converted to the general-purpose network protocol. In addition to the operation of the TV door phone system according to the first aspect, the intercom video signal and the interphone security signal of the TV door phone system can be easily transferred to a network such as an Internet provider. Can do.

  According to the television door phone system of the third aspect of the present invention, a fourth group of connection terminals for connecting indoor devices to the router in the second operation example, an interphone video signal described later, and an interphone security described later. A third signal converter for transmitting at least one of the signals to a network connected to the third connection terminal, and a signal transmission path to an indoor device that should transmit at least one of the intercom video signal and the interphone security signal. And a control unit for forming a signal transmission path to an indoor device that should transmit a network signal received at the third group of connection terminals, the TV door phone system according to the second aspect Is it possible to transmit network signals from the network to a personal computer in addition to the above functions? , Residents can it is possible to use the Internet from the personal computer only routers television doorphone system, easily transfer interphone video signal and intercom security signal TV door system to a personal computer.

  According to the television door phone system of the fourth aspect of the present invention, a fifth group of connection terminals for connecting a security device having a security communication protocol to the router in the first operation example, and a fifth connection terminal 4th signal conversion for converting from a security communication protocol to an interphone communication protocol for the purpose of transmitting a device security signal, which will be described later, received at, to at least one of a plurality of entrance slave units with cameras and a plurality of master units with monitors In addition to the operation of the TV door phone system according to the first aspect, the system can be constructed only by connecting the security device to the router, and the security device can be easily added. In addition, the wiring terminal of the monitor-equipped master unit is no longer necessary, and the monitor-equipped master unit can be downsized Can, furthermore, can be transferred to a personal computer or a network monitor with the master unit is independently a device security signal even during a call.

  According to the television doorphone system of the fifth aspect of the present invention, the alarm unit for receiving and ringing the device security signal in the monitor base unit in the fourth operation example, and the device for the indoor device or the network And a setting unit for setting whether or not to transfer the security signal, in addition to the operation of the TV door phone system according to the fourth aspect, the transfer setting at the time of alarm is the same as that of the conventional TV door phone system. Equivalent operability can be maintained.

  According to the TV door phone system according to the sixth aspect of the present invention, when the signal flow rate in the router is measured by the router in the first to fifth operation examples and the signal flow rate exceeds a predetermined threshold value. Includes a first flow rate suppression unit a that preferentially processes at least one of the interphone video signal and the interphone security signal, and suppresses browser signal processing using the Internet from a personal computer by blocking or inserting a delay time. Therefore, in addition to the operation of the TV door phone system according to the first to fifth aspects, the intercom signal is given priority even when the Internet is used in a personal computer. Can be reduced.

  According to the television door phone system of the seventh aspect of the present invention, when the signal flow rate exceeds a predetermined threshold value in spite of suppressing the browser signal in the router in the sixth operation example. In the second group, the signals received by at least one of the connection terminals of the second group and the connection terminals of the fifth group are preferentially processed, and the connections of the other groups excluding the connection terminals of the second group and the fifth group are connected. Since the second flow rate suppression unit for suppressing the processing of the signal received at the terminal by blocking or inserting a delay time is provided, in addition to the operation of the TV door phone system according to the sixth aspect, the intercom Among the signals, device security signals from security devices and network camera security signals from network cameras are prioritized, further reducing the risk of security misreporting. Rukoto can.

  According to the TV door phone system of the eighth aspect of the present invention, in addition to the operation of the TV door phone system of the third aspect, the intercom video signal of the TV door phone system is transferred to the router in the third example of operation such as a hard disk. It can be stored in a storage device and easily viewed from a personal computer or network as well as a monitor-equipped master unit, and a storage device such as a hard disk can also be used as an external storage for a personal computer, further improving convenience be able to.

The block which shows the structure of the television door phone system by one Example of this invention.

  A preferred embodiment to which a television door phone system of the present invention is applied will be described below with reference to the drawings.

  FIG. 1 shows a block diagram of a television door phone system according to an embodiment of the present invention.

  In the figure, the TV door phone system of the present invention includes a plurality of camera-equipped slave units (in FIG. 1, for ease of explanation, one of the plurality of camera-equipped slave units is a camera-equipped slave unit 1a. And the same applies to the following), and the video signal picked up by the camera-equipped slave unit is displayed and the voice signal is transmitted to and received from the camera-provided slave unit to establish a call. A plurality of monitor-equipped master units (in FIG. 1, for ease of explanation, only one monitor-equipped master unit 2a among the plurality of monitor-attached master units is displayed. The same applies hereinafter). In order to relay the video signal and the audio signal transmitted between the entrance unit with camera and the base unit with monitor, a router 9 for connecting the entrance unit with camera and the base unit with monitor is provided.

  The router 9 includes a first group of connection terminals 91 for connecting a plurality of entrance slave units with cameras and a plurality of master units with a monitor, and a network N such as an Internet provider, without requiring conversion of an interphone communication protocol. A third group of connection terminals 93 for connection, a fourth group of connection terminals 94 for connecting an indoor device 4 such as a television 4a, a personal computer 4b, a security sensor 5a having a security communication protocol, and a passive sensor 5 The fifth group connection terminal 95 for connecting the security device 5 such as the call button 5c and the like and the storage device 6 such as a hard disk are connected to the connection terminals of the first group, the third group, and the fourth group, respectively. A sixth group of connection terminals 96 such as a USB terminal for enabling signal writing with respect to a video signal from a connected device; A second group of connection terminals 92 for connecting the network camera 3 for transmitting a video signal using a general-purpose network protocol such as P or UDP, and a video signal received at the second group of connection terminals are the first Received by a first signal converter 99a for converting a general-purpose network protocol to an interphone communication protocol for transmission to at least one of a plurality of monitor-equipped master units connected to the connection terminal, and a first group of connection terminals Intercom to the network via the network cable connected to the third group connection terminal for the generated video signal, fire signals from at least one of the plurality of camera-equipped slave units and the plurality of monitor-equipped master units Received by the second signal converter 99b for converting the communication protocol to the general-purpose network protocol and the first connection terminal. The third signal converter 99c for transmitting at least one of the video signal and the security signal to the indoor device 4 connected to the fourth connection terminal, and the security from the security device received at the fifth connection terminal A fourth signal conversion unit 99d for converting a security communication protocol to an interphone communication protocol for the purpose of transmitting signals to at least one of a plurality of camera-equipped slave units and a plurality of monitor-equipped master units; and a video signal as a storage device A fifth signal converter 99e for converting from an interphone communication protocol to a data format that can be processed by an indoor device for the purpose of transmitting to the network, and a signal transmission path to a parent device with a monitor to which a video signal should be transmitted Or a signal transmission path to an indoor device that should transmit at least one of the video signal and the security signal In both cases, control for forming a signal transmission path to an indoor device to which signals such as mail and browser information from the network connected via the network cable L1 received at the third group connection terminal should be transmitted. Unit 99 and the signal flow rate in the router are measured, and when the signal flow rate exceeds a predetermined threshold, at least one of the video signal and the security signal is preferentially processed, and other than at least one of the video signal and the security signal Although other signals, for example, the first flow rate suppression unit 98a for suppressing processing of signals such as browser information by blocking or inserting a delay time, and other signals other than at least one of the security signals are suppressed. When the signal flow rate exceeds a predetermined threshold, the signal was received by at least one of the second group of connection terminals and the fifth group of connection terminals. The second flow rate for preferentially processing the signal and suppressing the processing of the signals received at the other group connection terminals excluding the second group connection terminal and the fifth group connection terminal by blocking or inserting a delay time And a suppression unit 98b.

  Also, the plurality of master units with monitors transfer the security signal to the notification unit 21a having the speaker 210a and the monitor 210b for receiving and sounding the security signal from the security device, and the indoor device 4 or the network N, respectively. And a setting unit 22a for setting whether or not to do.

  Here, the plurality of entrance slave units with cameras 1a and the plurality of master units with monitors 2a are connected to the first group of connection terminals 91, and the first group of connection terminals 91 are connected to the first group of connection terminals 91 through the second flow rate suppressing unit 98b. First to fifth signal conversion units 99a to 99e of the control unit 99 are connected. The network camera 3 is connected to a second group of connection terminals 92, and a first signal conversion unit 99 a is connected to the second group of connection terminals 92. The network N is connected to the third group connection terminal 93 via the network cable L1, and the third group connection terminal 93 is controlled via the first flow rate suppression unit 98a and the second flow rate suppression unit 98b. The second signal conversion unit 99b of the unit 99 is connected. The indoor devices 4 such as the television 4a and the personal computer 4b are connected to the fourth group of connection terminals 94 via the indoor device cable L2, and the fourth group of connection terminals 94 includes the first flow rate suppressing unit 98a and the first group. A third signal conversion unit 99c of the control unit 99 is connected via two flow rate suppression units 98b. The security devices 5 such as the security sensor 5a, the passive sensor 5b, and the call button 5c are connected to the fifth group of connection terminals 95, and the fourth signal converter 99d is connected to the fifth group of connection terminals 95. . The hard disk 6 is connected to a sixth group of connection terminals 96, and a fifth signal conversion unit 99 e is connected to the sixth group of connection terminals 96. The control unit 99 includes first to fifth signal conversion units 99a to 99e.

Next, the operation of the television door phone system of the present invention configured as described above will be described.
[First operation example]
In FIG. 1, first, a plurality of camera-equipped entrance slaves 1a have the same configuration, and are provided with a calling function, a call function, and a recording function as in the case of a conventional camera-equipped entrance slave. Each of the plurality of monitor-equipped master units 2a has the same configuration, and has a call response function, a call notification function, and a recording function as in the conventional monitor-equipped master unit.

  When the plurality of camera-equipped slave units 1a and the plurality of monitor-equipped master units 2a configured as described above are connected to the first group of connection terminals 91 of the router 9, the plurality of camera-entry slave units 1a and the plurality of monitor-equipped master units The machines 2a are connected without requiring interphone communication protocol conversion.

  Thereby, by relaying the router 9, the video signal (hereinafter referred to as "interphone video signal") captured by the camera-equipped slave unit 1a can be displayed on the monitor of the monitor-equipped master unit 2a. Further, by relaying through the router 9, it is possible to establish a call by transmitting and receiving audio signals between the camera-equipped entrance slave unit 1a and the monitor-equipped master unit 2a.

  Next, when the network camera 3 is connected to the second group of connection terminals 92, a video signal (hereinafter referred to as “network camera video signal”) output from the network camera 3 is transmitted through the second group of connection terminals 92. When the network camera video signal is received and detected by the control unit 99, the first signal conversion unit 99a (conversion program in the CPU) is controlled by the control of the control unit 99, which is a CPU. A general-purpose network protocol such as TCP or UDP is converted into an interphone communication protocol for the purpose of transmission to at least one of the devices, for example, to the monitor-equipped master device 2a.

  As a result, the video signal output from the network camera 3 passes through the second group of connection terminals 92, the first signal conversion unit 99a, the second flow rate suppression unit 98b described later, and the first group of connection terminals 91. It is transmitted to the first monitor-equipped master unit 2a.

According to the TV door phone system having such a configuration, a plurality of entrance slave units with cameras and a plurality of monitor master units are connected to the router 9 that connects between the camera entrance slave unit 1a and the monitor master unit 2a. A first group of connection terminals 91, a second group of connection terminals 92 for connecting the network camera 3, a first signal converter 99 a for converting a general-purpose network protocol into an interphone communication protocol, and a video signal Is provided with a control unit 99 for forming a signal transmission path to the monitor-equipped master unit, the general-purpose network camera 3 can be used in the TV door phone system.
[Second operation example]
In FIG. 1, in this operation example, as in the first operation example, a plurality of camera-equipped slave units 1 a and a plurality of monitor-equipped master units 2 a are connected to the first group of connection terminals 91 of the router 9. A network N such as an Internet provider is connected to the third group connection terminal 93 via a network cable L1.

  In this operation example, the intercom video signal described in the first operation example and a security signal such as the occurrence of a fire from at least one of the plurality of camera-equipped slave units 1a and the plurality of monitor-equipped master units 2a (hereinafter referred to as “interphone security”). Signal ") is received by the first group of connection terminals 91, and these signals are sent to a second signal conversion unit 99b (conversion in the CPU) of the control unit 99 via a second flow rate suppression unit 98b described later. When the program is transmitted to the program), the second signal conversion unit 99b is controlled by the control unit 99 which is a CPU, and the interphone communication protocol is converted into a general-purpose network protocol.

  As a result, the intercom video signal and the interphone security signal described above are transmitted from the first group of connection terminals 91, the second flow rate suppression unit 98b, the second signal conversion unit 99b, the second flow rate suppression unit 98b, and the third group. The data is transmitted to the network N such as an Internet provider via the connection terminal 93 and the network cable L1.

According to the TV door phone system in the second operation example, the third group connection terminal 93 for connecting the network N to the router 9 in the first operation example, and the interphone communication protocol for converting to the general-purpose network protocol. By providing the second signal converter 99b, the intercom video signal and intercom security signal of the TV door phone system can be easily transferred to the network N such as an Internet provider.
[Third embodiment]
In FIG. 1, in this operation example, as in the second operation example, a plurality of camera-equipped slave units 1 a and a plurality of monitor-equipped master units 2 a are connected to the first group of connection terminals 91 of the router 9. A network N such as an Internet provider is connected to the third group connection terminal 93 via a network cable L1. Furthermore, the indoor devices 4 such as the television 4a and the personal computer 4b are connected to the fourth group of connection terminals 94 via the indoor device cable L2.

  In this operation example, the above-described intercom video signal and intercom security signal are received by the first group of connection terminals 91, and these signals are transmitted through the second flow rate suppression unit 98b described later to the third of the control unit 99. Is transmitted to the signal conversion unit 99c, the third signal conversion unit 99c (conversion program in the CPU) is controlled by the control unit 99 which is a CPU, and at least one of these intercom video signal and interphone security signal is transmitted. A signal transmission path to the indoor device 4 to be formed is formed. Further, a signal transmission path to the indoor equipment 4 to which signals (hereinafter referred to as “network signals”) such as mail and browser information from the network N are transmitted under the control of the control unit 99 which is a CPU is a third group of connection terminals. 93, the first flow rate suppressing portion 98a, and the fourth group of connection terminals 94.

  Thus, the network signal from the network N is sent to the personal computer 4b via the network cable L1, the third group connection terminal 93, the first flow rate suppressing unit 98a, the fourth group connection terminal 94, and the indoor device cable L2. Is transmitted. In addition, the intercom video signal and the intercom security signal of the TV door phone system are connected to the first group of connection terminals 91, the second flow rate suppressing unit 98b, the third signal converting unit 99c, the second flow rate suppressing unit 98b, and the fourth group. Are transmitted to the personal computer 4b via the connection terminal 94 and the indoor equipment cable L2.

According to the television door phone system in the third operation example, the router 9 in the second operation example has a fourth group of connection terminals 94 for connecting the indoor device 4 to at least one of the intercom video signal and the interphone security signal. A signal transmission path to the indoor device 4 that should transmit at least one of the intercom video signal and the interphone security signal, and the third signal conversion unit 99c for transmitting the image to the network connected to the third connection terminal. And a control unit 99 for forming a signal transmission path to the indoor equipment 4 to which the network signal received at the third group connection terminal is to be transmitted. 4b can be transmitted to the resident, the TV door phone system router 9 It is possible to use the Internet from the personal computer 4b at body, it is possible to easily transfer interphone video signal and intercom security signal TV door system to a personal computer 4b.
[Fourth embodiment]
In FIG. 1, in this operation example, as in the first operation example, a plurality of camera-equipped slave units 1 a and a plurality of monitor-equipped master units 2 a are connected to the first group of connection terminals 91 of the router 9. A security device 5 having a security communication protocol is connected to the fifth group of connection terminals 95.

  In this operation example, a security signal from the security device 5 (hereinafter referred to as “device security signal”) is received by the fifth group of connection terminals 95, and the device security signal is transmitted to the fourth signal conversion unit of the control unit 99. When transmitted to 99d, the fourth signal conversion unit 99d (conversion program in the CPU) is controlled by the control unit 99, which is a CPU, and at least of the plurality of entrance slave units with cameras 1a and the plurality of master units with monitors 2a. 1 is converted from the security communication protocol to the intercom communication protocol for the purpose of transmission to the network.

According to the TV door phone system in the fourth operation example, the fifth group of connection terminals 95 for connecting the security device 5 having the security communication protocol to the router 9 of the first operation example, and the fifth connection terminal 4th signal conversion for converting the security communication protocol to the interphone communication protocol for the purpose of transmitting the device security signal received by the at least one of the plurality of camera-equipped entrance slave units 1a and the plurality of monitor-equipped master units 2a By providing the unit 99d, it is possible to construct a system simply by connecting the security device 5 to the router 9, and it is possible to easily add the security device 5, and to connect the monitor base unit 2a. No terminal is required, and the monitor-equipped master unit 2a can be reduced in size. It can be transferred to the personal computer 4b and network N the device security signal even during independently.
[Fifth embodiment]
In FIG. 1, in this operation example, the monitoring base unit 2a receives a device security signal from the security device 5 and a notification unit 21a including a speaker 210a and a monitor 210b for ringing, and the indoor device 4 or network. A setting unit 22a for setting whether or not to transfer a device security signal to N is provided.

In this operation example, in order to set whether or not to transmit the device security signal to the indoor device 4 or the network N, and the notification unit 21a for receiving and sounding the device security signal to the monitor base unit 2a. Therefore, the transfer setting at the time of alarm can maintain the same operability as that of the conventional TV door phone system.
[Sixth embodiment]
In FIG. 1, in this operation example, the signal flow rate in the router 9 is measured by the router 9, and the signal flow rate is set to a predetermined threshold (for example, when the processing capacity of the router 9 is 100 Mbps, 70 %)), Priority processing is performed on at least one of the interphone video signal and the interphone security signal, and other signals other than at least one of the interphone video signal and the interphone security signal, for example, browser information Or the like (hereinafter referred to as “browser signal”) is cut off (for example, “the control unit 99 deliberately does not return ack for communication to be cut off, or time-out”) or “control unit 99 "Return the reject signal to the communication that you want to block") or delay time insertion, The control unit 99 returns ack immediately after receiving the data. By adding a delay of about 100 milliseconds from the data reception to the ack return, the control unit 99 reduces the amount of data flowing per second. 1 flow rate suppression unit 98a is provided.

In this operation example, the signal flow rate in the router 9 is measured by the router 9 in the first to fifth operation examples, and when the signal flow rate exceeds a predetermined threshold, the interphone video signal and Since the first flow rate suppression unit 98a for preferentially processing at least one of the interphone security signals and suppressing the browser signal processing by blocking or inserting a delay time is provided, the personal computer 4b uses the Internet. Even when the intercom signal is given priority, the risk of security misreporting can be reduced.
[Seventh embodiment]
In FIG. 1, in this operation example, the router 9 in the sixth operation example has the second signal flow rate when the signal flow rate exceeds a predetermined threshold value even though the browser signal is suppressed. Preferentially process signals received by at least one of the group connection terminals 92 and the fifth group connection terminals 95, and exclude the second group connection terminals 92 and the fifth group connection terminals 95. A second flow rate suppression unit 98b is provided for suppressing the processing of the signal received at the time by blocking or inserting a delay time.

In this example of operation, when the above-described signal flow exceeds a predetermined threshold despite the above-described browser signal being suppressed by the router 9, the second group connection terminal 92 and the fifth group connection are connected. Prioritize the signal received at at least one of the terminals 95 and block the processing of the signals received at the other group connection terminals excluding the second group connection terminal 92 and the fifth group connection terminal 95 or Since the second flow rate suppression unit 98b for suppressing by delay time insertion or the like is provided, priority is given to the device security signal from the security device 5 and the network camera security signal from the network camera 3 among the intercom signals. Therefore, the risk of security misreporting can be further reduced.
[Eighth embodiment]
In FIG. 1, in this operation example, a storage device 6 such as a hard disk 6 is connected to a sixth group connection terminal 96 such as a USB terminal of the router 9, and a video signal is transmitted to the router 9 to the storage device. For this purpose, a fifth signal conversion unit 99e for converting the interphone communication protocol into a data format that can be processed by the indoor device 4 is provided.

  In this operation example, when the storage device 6 such as a hard disk is connected to a sixth group connection terminal 96 such as a USB terminal of the router 9, the first group, third group, and fourth group connection terminals 91 and 93 are connected. , 94 can be written to the video signals from the devices connected respectively. Further, the fifth signal conversion unit 99e (conversion program in the CPU) is controlled by the control of the control unit 99, which is a CPU, and can be processed by the indoor device 4 from the interphone communication protocol for the purpose of transmitting the video signal to the storage device. Is converted to a proper data format.

  In this operation example, the intercom video signal of the TV door phone system is stored in the storage device 6 such as a hard disk and can be easily browsed not only from the monitor-equipped master unit 2a but also from the personal computer 4b and the network. Since the storage device 6 can also be used as an external storage of the personal computer 4b, convenience can be further improved.

  The TV door phone system of the present invention has been described with a specific embodiment. However, the present invention is not limited to this embodiment, and any configuration known so far as long as the effect of the present invention is achieved. It goes without saying that even this system can be adopted. For example, instead of the connection terminals of the first to sixth groups of the above-described router, a wireless transmission / reception unit for wirelessly connecting the wired wiring connected to the connection terminals of the first to sixth groups by wireless LAN or the like is mounted. May be. In this case, since it is wireless, movement of each device becomes easy. Further, instead of the above-described third group connection terminal of the router, a wireless transmission / reception unit for connecting the network with a wireless line such as a cellular phone network may be mounted. In this case, since a mobile phone network can be used, installation of equipment becomes easy.

DESCRIPTION OF SYMBOLS 1a ... Entrance unit 2a with a camera 2a ... Base unit with a monitor 21a ... Notification part 22a ... Setting part 3 ... Network camera 4 ... Indoor equipment 6 ... Storage device 9 ...・ Router N ・ ・ ・ Network 91 ・ ・ ・ First group connection terminal
92 ... Second group connection terminal 93 ... Third group connection terminal
94: Fourth group connection terminal 95: Fifth group connection terminal
96... Sixth group connection terminal 98a... First flow rate suppression unit 98b... Second flow rate suppression unit 99a... First signal conversion unit 99b. 99c ... Third signal conversion unit 99d ... Fourth signal conversion unit 99e ... Fifth signal conversion unit 99 ... Control unit L1 ... Network cable L2 ... Indoor equipment cable

Claims (8)

For displaying a video signal picked up by the camera-equipped entrance slave device (1a) and the camera-equipped entrance slave device, and transmitting and receiving audio signals between the camera-equipped entrance slave device and establishing a call In order to relay the video signal and the audio signal transmitted between the monitor-equipped master unit (2a), the camera-equipped entrance slave unit and the monitor-equipped master unit, the camera-equipped entrance slave unit and the monitor-equipped It is composed of a router (9) that connects the base units,
The router includes a first group of connection terminals (91) for connecting a plurality of camera-equipped slave units and a plurality of monitor-based master units without the need for interphone communication protocol conversion, and a general-purpose network protocol. A second group of connection terminals (92) for connecting a network camera (3) for converting the communication protocol and transmitting a video signal;
The general-purpose network protocol is used as the interphone communication protocol for the purpose of transmitting video signals received at the second group of connection terminals to at least one of the plurality of monitor base units connected to the first connection terminal. A first signal conversion unit (99a) for conversion and a control unit for forming a signal transmission path to the parent device with monitor to which the video signal received at the connection terminal of the second group is to be transmitted ( 99). A television door phone system comprising:   The router includes a third group of connection terminals (93) for connecting the network (N) via a network cable (L1), video signals received at the first group of connection terminals, The intercom communication protocol is transferred to the network via the network cable connected to the third group connection terminal for security signals from at least one of the entrance unit with camera and the plurality of base units with monitor. The television door phone system according to claim 1, further comprising a second signal conversion unit (99 b) for converting into a video signal.   The router includes a fourth group of connection terminals (94) for connecting the indoor device (4) via the indoor device cable (L2), the video signal received at the first connection terminal, and A third signal converter (99c) for transmitting at least one of the security signals to the network connected to the third connection terminal via the network cable; and at the first connection terminal A signal transmission path to an indoor device that should transmit at least one of the received video signal and security signal is formed, and via a network cable (L1) received at the third group connection terminal The television doorphone system according to claim 2, further comprising a control unit (99) for forming a signal transmission path to an indoor device that is to transmit a signal from a connected network. Temu.   The router has a fifth group of connection terminals (95) for connecting a security device (5) having a security communication protocol, and a plurality of security signals from the security device received at the fifth connection terminal. And a fourth signal converter (99d) for converting the security communication protocol to the interphone communication protocol for the purpose of transmitting to at least one of the camera-equipped entrance slave unit and the plurality of monitor-equipped master units. The TV door phone system according to claim 1.   The monitor base unit sets a notification unit (21a) for receiving and ringing a security signal from the security device and whether to transfer the security signal to the indoor device or the network. The television door phone system according to claim 4, further comprising a setting unit (22a).   The router measures a signal flow rate in the router, and if the signal flow rate exceeds a predetermined threshold, at least one of the video signal and the security signal received at the first connection terminal. And a first flow rate suppression unit (98a) for suppressing processing of signals other than at least one of the video signal and the security signal by blocking or inserting a delay time. The television door phone system according to any one of claims 1 to 5.   When the signal flow rate exceeds a predetermined threshold despite suppressing at least one signal other than at least one of the security signals, the router is configured to connect the second group of connection terminals and the fifth group. Preferentially process signals received at at least one of the connection terminals of, and block processing of signals received at connection terminals of other groups excluding the second group of connection terminals and the fifth group of connection terminals 7. The television door phone system according to claim 6, further comprising a second flow rate suppression unit (98b) for suppressing by insertion of a delay time or the like.   The router connects a storage device (6), and enables writing signals for video signals from devices connected to the connection terminals of the first group, the third group, and the fourth group, respectively. The intercom communication for the purpose of transmitting the video signals from the devices connected to the connection terminals of 96 groups and the connection terminals of the first group, the third group, and the fourth group to the storage device. The television door phone system according to claim 3, further comprising a fifth signal converter (99e) for converting a protocol into a data format that can be processed by the indoor device.

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