JP2003134268A - Local communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a local communication system that can simultaneously transmit/receive video and audio information or the like by using the same local network signal line through a plurality of channels resulting in saving lines and easily extend the functions. SOLUTION: When a lobby interphone 1 makes communication of video audio information, a control section 100 generates a communication start request command and transmits it to a GK/GW (gatekeeper/gateway) 8 in compliance with the IP protocol. The GK/GW 8 receives the communication start request command to store the IP address of the lobby interphone 1 and band information such as a consumed band quantity to a storage section 81 and transmits the communication start acknowledgement command by means of a digital multiplex packet in compliance with the IP protocol. After receiving the communication start acknowledgement command from the GK/GW 8, the lobby interphone 1 writes a destination IP address to a destination header and transmits each video and audio information by the digital multiplex packet in compliance with the IP protocol.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a local communication system for communicating video and audio in apartments, hospitals, etc., and alarm notification command information.

[0002]

2. Description of the Related Art As a conventional example of a communication system on a premises, a home automation system for an apartment house (condominium HA
The system configuration is shown in FIG.

This condominium HA system is a home automation (H) installed in a lobby intercom 1 installed in a lobby LB, a manager's room K, etc., as shown in the figure.
It is composed of a system master unit 2 for integrating A), a house information board 3 and a doorphone subunit 4 installed in each dwelling unit H, and a fire detector etc. 5 installed in each dwelling unit H and a manager room K. .

The video / audio communication in the condominium HA system is performed between the house information board 3 and the lobby intercom 1.
Alternatively, it is performed between the house information board 3 and the system master device 2, and further between the lobby intercom 1 and the system master device 2.

A fire / emergency report (transmission of an alarm notification command) is sent when the fire detector 5 detects a fire or when an emergency button (not shown) on the home information panel 3 is pressed. 3 and the system master unit 2.

[0006] By the way, the wiring structure for connecting the lobby intercom 1 of the condominium HA system, the system master unit 2, and the housing information board 3 provided in each dwelling unit H is one pair for video and one for audio. Signal line 6 consisting of 1 pair, 3 pairs, 1 pair for fire / emergency alarms.
Is used.

As a signal transmission method used,
An analog FM modulation signal is used for a video signal, a baseband signal is used for an audio signal, and a fire / emergency notification (alarm transmission) is usually performed by polling selecting communication.

[0008]

[Problems to be Solved by the Invention] Condominium H described above
Since the A system uses analog communication, only one channel (call) can be used at the same time for video / audio communication, and the signal line is divided for video communication, voice communication, and fire / emergency notification. There is a problem that the wiring becomes complicated. Further, when data communication is added to this condominium HA system, there is a problem that it is difficult to expand the function because another wiring is required.

The present invention has been made in view of the above points, and it is an object of the present invention that information can be simultaneously transmitted by a plurality of channels by the same signal line of a local network, and wiring can be saved. The purpose of the invention of claim 1 is to provide an on-premise communication system that is easy to expand and has a function that is easy to expand. The purpose of the present invention is to provide a local communication system that can know

It is another object of the present invention to provide a local communication system capable of confirming an image at the time of absence by a mailer-equipped terminal such as a mobile phone for e-mail which is out of the office.

Further, it is an object of the inventions of claims 3 and 4 to provide an internal communication system capable of reproducing a sound without discomfort even if there is a packet reception error of audio information on the receiving side. To do.

Further, it is an object of the invention of claim 5, claim 6 or claim 7 that the used band can be suppressed by reducing the frame rate of the image when the used band is congested. To provide a local communication system.

[0013]

In order to achieve the above-mentioned object, according to the invention of claim 1, transmission of voice information between information devices for making a voice call provided in a premises and information device provided with an imaging camera. In a local communication system for transmitting video information to an information device equipped with monitor means for monitoring video from a digital multi-packet transmission by IP protocol through a local network in the premises, a means for issuing an alarm notification command is provided. The alarm notification command is received by interposing between an information device for transmitting the alarm notification command by digital multiplex packet transmission by the IP protocol through the local network and an external public network and a local network on the premises. Then a fire message will be sent to the external telephone via the public network.
A gateway provided with means for making an emergency call is provided.

According to the second aspect of the present invention, transmission of voice information between information devices for making a voice call provided on the premises, and a video image from the information device equipped with the imaging camera to the information device equipped with the monitor means for monitoring the video. A local area communication system for transmitting information by digital multiplex packet transmission according to an IP protocol through a local network in a local area, wherein an information device receiving the video information transmits the received compressed video information as an attachment file. It is characterized in that it is provided with a mail transmitting means for generating the electronic mail and transmitting the electronic mail to a preset mail address.

According to the third aspect of the present invention, transmission of voice information between information equipments for voice communication provided on the premises, and video to the information equipments having monitor means for monitoring the video from the information equipments having the image pickup camera. It is a local communication system for transmitting and receiving information by digital multiple packet transmission by IP protocol through a local network in the premises, and the voice information is exchanged with other information devices by the information device transmitting and receiving voice information. When it is detected that the packet of the voice information received during the operation is missing, a means for interpolating the voice information of the missing packet by the background noise information stored in advance is provided.

According to the invention of claim 4, transmission of voice information between information equipments for voice communication provided on the premises, and video to the information equipments having monitor means for monitoring the video from the information equipments having the image pickup camera. It is a local communication system for transmitting and receiving information by digital multiple packet transmission by IP protocol through a local network in the premises, and the voice information is exchanged with other information devices by the information device transmitting and receiving voice information. When it is detected that the packet of the audio information received during the operation is missing, the audio information of the missing packet is interpolated by the audio information of the packet immediately before the missing packet.

According to the invention of claim 5, the transmission of the voice information between the information devices for making a voice call provided in the premises, and the image from the information device having the image pickup camera to the information device having the monitor means for monitoring the image. A local communication system for transmitting and receiving information by digital multiplex packet transmission by IP protocol through a local network in the premises, and a function for adjusting a frame rate of video when video information is exchanged between information devices. Is provided in an information device for exchanging video information.

According to a sixth aspect of the present invention, transmission of voice information between information devices for making a voice call provided on the premises, and a video image from the information device having the image pickup camera to the information device having monitor means for monitoring the video image. A local area communication system for transmitting and receiving information by digital multiplex packet transmission by an IP protocol through a local network in the area. According to a band currently used when transmitting and receiving video information between information devices. It is characterized by being provided with a gatekeeper having a function of instructing adjustment of the frame rate of video.

According to a seventh aspect of the present invention, transmission of voice information between information devices for voice communication provided on the premises, and video to the information device provided with monitor means for monitoring the video from the information device provided with the image pickup camera. It is a local communication system that performs information transmission by digital multiplex packet transmission by an IP protocol through a local network in the premises, and when transmitting and receiving video information between information devices, the number of collisions of packets of video information and The information device for transmitting video information is provided with a function of detecting a packet transmission state such as a transmission waiting time and adjusting the frame rate of the video according to the detected content.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to embodiments.

(Embodiment 1) This embodiment corresponds to the invention of claim 1 and is applied to a condominium HA system consisting of a plurality of buildings. As shown in FIG. 1, the lobby of each building X1 ... Lobby intercom 1 installed in LB
And the surveillance camera device 7, the system master unit 2 provided in the manager's room K, the gatekeeper / gateway device (hereinafter G
K / GW equipment) 8, 10BASE-T and 100B
A hub 10 for branching a signal line L of a local network of the ASE-T specification (Ethernet _(R) ), a connection device of the local network of each building X1 ..., A system master device 2 and a GK / GW device 8 A router 11 for performing routing between the routers 11 and 12 and a hub 12 for branching the signal line L of the network from the system master device 2 and the GK / GW device 8 to each router 11 and a housing provided in each dwelling unit H It is composed of an information panel 3, an intercom subunit 4, a fire detector 5 provided in each dwelling unit H and an administrator room K, and is connected to an external public network PT via a GK / GW device 8 and the Internet IN. Is connected to the public network PT through an Internet connection provider ISP having an access point. Further, communication with the mobile terminal 201 can be performed through the base station 200 of the mobile communication network.

The image pickup camera 104 of the lobby intercom 1 (see FIG. 5) and the image pickup camera 7 of the surveillance camera device 7
4 (see FIG. 6)), the video signals obtained by image capturing and the input audio signals of the audio input / output means of the lobby intercom 1, the housing information panel 3, and the system master unit 2 are digitally converted by the respective devices, It is encoded and further packetized together with commands and the like to be described later, and I
It is adapted to be transmitted by a digital multiplex packet transmission system based on the P protocol.

In this embodiment, a transmission band corresponding to 10BASE-T is used, but it is possible to change to 100BASE or 1000BASE specifications according to the required transmission band.

The configuration and function of each device used in this embodiment will be described below.

First, as shown in FIG. 2, the housing information board 3 includes a control unit 30, a storage unit 31, an operation unit 32, a video processing unit 33,
The display device 34, the voice processing unit 35, the voice input / output unit 36, the network interface unit 37, the doorphone interface unit 38, and the sensor interface unit 39 constitute an information device.

Next, the functions of the housing information panel 3 for communicating image information and sound information (only receiving for image information), alarm command communication, alarm display, and alarm sound output will be described below.

The control unit 30 performs packetization / unpacketization of data and controls each unit, the storage unit 31 saves various information (video information, audio information, etc.), and the operation unit 32 includes various keys. , Emergency button operation, call destination number input, etc.

The network interface unit 37 performs packet communication (video information, audio information) with other devices (lobby intercom 1, surveillance camera device 7, system master unit 2, GK / GW unit 8, other house information board 3). , Various data, various commands), and a local IP address is assigned.

The intercom interface section 38 transmits / receives a video signal and an audio signal to / from the intercom slave 4, and the sensor interface section 39 detects a fire detection signal which is a warning notification command from the fire detector 5.

The video processing unit 33 decodes and D / A converts the video information received from the network interface unit 37 and unpacketed by the control unit 30, or the video information for alarm stored in the storage unit 31 in advance. To convert to analog video signal.

The display section 34 constitutes a monitor for outputting a screen of the analog video signal from the video processing section 33.

The voice input / output unit 36 inputs / outputs an analog voice signal by a microphone (not shown) and a speaker (not shown) for voice communication.

The voice processing unit 35 decodes voice information unpacketed by the control unit 30 or voice information for warning stored in the storage unit 31 in advance, and converts it into an analog voice signal by D / A conversion. Voice input / output unit 3
The analog audio signal input from 6 is subjected to A / D conversion and encoding and passed to the control unit 30.

Then, in the housing information board 3, the voice processing unit 33 passes the voice information A / D converted and encoded to the control unit 30, and the control unit 30 packetizes the encoded voice information, and this packet The converted voice information together with other commands and data is transmitted from the network interface unit 37 by the IP protocol to the signal line L of the local network.
Is transmitted in digital multiplex packets on top.

Further, various commands and data including a command as alarm notification command information to be sent at the time of fire detection of the fire detector 5 or operation of an emergency button are generated by the control unit 30 and, as described above, together with the packet of voice information, the network. The packet is transmitted from the communication interface unit 37 in the form of a packet by the IP protocol (command communication with the GK / GW device 8 will be described later).

As shown in FIG. 3, the GK / GW device 8 is composed of a control unit 80, a storage unit 81, a network interface unit 82, and an ISDN interface unit 83, and is a public network PT which is an ISDN subscriber line network. Performs connection to the Internet IN and bandwidth management.

The control unit 80 is used in this embodiment.
The BASE-T and ISDN signals are converted, and each unit is integrated, and the storage unit 81 stores the band information currently used. A local IP address is assigned to the network interface unit 82, and packet communication (various data, various commands) with other devices (lobby intercom 1, surveillance camera device 7, system master unit 2, housing information panel 3) by the IP protocol is performed. ), The ISDN interface unit 83 communicates with the public network PT and the Internet IN via the public network PT.

When the gateway function unit of the GK / GW device 8 first receives a packet addressed to an external IP address or telephone number from the network interface unit 82, the control unit 80 performs signal conversion (10BASE-). T →
Then, the ISDN interface unit 83 sends a call to another gateway or the telephone number of the access point of the Internet connection service provider ISP, and after the line is connected, the voice information, the image information, the telephone number of the other party or the IP address data, etc. are transferred.

When an incoming call is received from the ISDN interface unit 83 and data is received from the outside, the control unit 80
Signal conversion (ISDN → 10BASE-T) is performed, and the data is transferred from the network interface unit 84 to another device on the local network.

In this embodiment, IS is used as the public network PT.
The DN subscriber network is taken as an example, but the analog telephone network and ADS are used.
L (Asymmetric Digital Subs)
It is also possible to support a CribLine), a CATV, and the like.

On the other hand, the gatekeeper function of the GK / GW device 8 is installed in the control unit 80, and communication transmitted from each device (lobby intercom 1, house information board 3, system parent 2, surveillance camera device 7). The used bandwidth is managed by the request command, and when the bandwidth exceeds a certain limit value, the used bandwidth is limited by rejecting the communication request.

As shown in FIG. 4, the system parent device 2 includes a control unit 20, a storage unit 21, an operation unit 22, a video processing unit 23, a display unit 24, a voice processing unit 25, a voice input / output unit 26, and a network interface. The housing information board 3 includes a unit 27 and a sensor interface unit 28.
It has the same functions as the corresponding functions of each part, and performs video / audio, alarm command communication, alarm display, alarm sound output,
Further, as another function, when a fire or a very corresponding alarm command is received from the house information board 3, the IP address information of the network interface section 37 of each house information board 3 registered in the storage section 21 in advance is received. , And has a function of multicasting alarm notification command information to a plurality of other home information boards 3.

As shown in FIG. 5, the lobby intercom 1 includes a control unit 100, a storage unit 101, an operation unit 102, a video processing unit 103, an image pickup camera 104, an audio processing unit 105, and
It is composed of an audio input / output unit 106 and a network interface unit 107, and has a video and audio communication function similar to the housing information board 3, but the video is captured by the imaging camera 104.
The analog video signal output from the device is captured, and the analog video signal is A / D converted by the video processing unit 103.
Encoding is performed, the encoded video information is further packetized by the control unit 100, and is transmitted on the signal line L by digital multiplex packet transmission by the IP protocol through the network interface unit 107. The communication process regarding the voice information is performed in the same manner as the housing information board 3.

As shown in FIG. 6, the surveillance camera device 7 includes a control unit 70, a storage unit 71, an operation unit 72, a video processing unit 73,
Imaging camera 74, network interface unit 7
It is composed of 5 and does not have a communication function of voice information but only a transmission function of video information and transmits the video information to the system master unit 2 and the housing information panel 3 at regular intervals. . The operation unit 72 constitutes an operation unit for performing adjustment and focus adjustment in the image pickup direction of the image pickup camera 74. The communication process regarding the video information is performed in the same manner as the lobby intercom 1.

Here, in the present embodiment, the lobby intercom 1 is provided with the image pickup camera 104 and the image input means by the image processing means 103, and the audio output means and the audio input means by the audio processing section 105 and the audio input / output section 106. The home information panel 3 and the system parent 2 constitute an information device, and display means by the video processing units 33, 22 and display units 34, 24, and voice input / output unit by the voice processing units 35, 25 and voice input / output unit 26. To configure an information device equipped with.

Next, taking the lobby intercom 1 as an example, the transmission of the video / audio information of this embodiment will be described.

First, when the lobby intercom 1 transmits video information and audio information, the control unit 100 generates a communication start request command as shown in FIG.
GK / GW that received the communication start request command when transmitted by digital multiplex packet transmission by P protocol
The device 8 saves band information such as the IP address of the lobby intercom 1 and the amount of band used in the storage unit 81, and transmits a communication start response command by digital multiplex packet transmission by the IP protocol.

The lobby intercom 1 is GK / G
After receiving the communication start response command from the W device 8, the video information and the audio information are input to the call number input by the operation unit 102 (when the call destination is, for example, the house information board 3, it is assigned to the dwell unit information board 3). No.) is written in the destination header of the packet and then transmitted as a digital multiplex packet according to the IP protocol.

It is assumed that the storage unit 101 stores a replacement table of each call number and its corresponding IP address.

The GK / GW device 8 manages the band information in the storage unit 81. When the band becomes equal to or more than a preset value, for example, even if the communication start request command is received from the lobby intercom 1, The GK / GW device 8 has a control unit 8
When the communication start refusal command is returned under the judgment of 0, the transmission of the video information and the audio information is refused and the band used is limited.

On the other hand, in the house information board 3 in which the IP address written in the destination header of the above packet matches the assigned IP address, the video information and the audio information from the lobby intercom 1 received through the network interface unit 37. The control unit 30 unpackets the packet. The unpacketized video information and audio information are decoded and D / A converted by the video processing unit 33 and the audio processing unit 35, and the analog video signal is sent to the display unit 34 and the analog audio signal is sent to the audio input / output unit 36. The respective images are input and reproduced on the display unit 34 and reproduced on the audio input / output unit 36.

Further, the voice signal input by the voice input / output unit 36 is A / D converted by the voice processing unit 35 and then coded, and the coded voice information is packetized by the processing unit 30. Moreover, the IP address of the lobby intercom 1 is added to the header as a destination, and then transmitted through the network interface unit 37 to the signal line 1 of the local network by digital multiplex packet transmission by the IP protocol.

The packetized voice information transmitted from the house information board 3 is taken into the control unit 100 through the network interface unit 107 of the lobby intercom 1 and unpacketized, and then decoded by the voice processing unit 105. D / A converted together with the voice input / output unit 10
Played at 6.

In this way, the video and audio input / output unit 1 picked up by the image pickup camera 104 from the lobby intercom 1
The voice information input at 06 is transmitted as a digital multiplex packet according to the IP protocol, and the voice information input at the voice input / output unit 36 is transmitted as a digital multiplex packet according to the IP protocol from the housing information panel 3 on the receiving side. Will be done.

Next, when the transmission of the above-mentioned video information and audio information is finished, the call end operation is performed by the operation unit 32 of the house information panel 3 or the operation unit 102 of the lobby intercom 1. In this case, Control unit 3 on the side that performed the end operation
Generate a communication end command with 0 or 100 to GK / GW
It transmits to the device 8 and notifies the GK / GW device 8 of the end of communication. GK / GW device 8 that received the communication end command
Deletes the band information of the corresponding device in the storage unit 81, in this case, the lobby intercom 1 that is the calling side, and transmits a communication end response command to the lobby intercom 1.

When each device such as the house information board 3 and the system master unit 2 transmits audio information, or the surveillance camera device 7
Similarly to the lobby intercom 1, the transmission of the video information is performed based on the transmission and reception of the communication start request command and the communication start response command with the GK / GW device 8. Of course, in this case as well, it is input by the respective operation units 32 and 22 or 7
The IP address corresponding to the called number set in 2 is written in the destination header of the packet. In this case as well, it is assumed that the call-destination number and the IP address replacement table are stored in the storage units 31, 21, and 71 of the house information board 3, the system master unit 2, and the surveillance camera device 7.

The IP protocol for voice information is generally called VoIP. Here, ITU-T Recommendation. 323 or MGCP, which is being standardized by IETF, and a standard IP protocol for video information is used.

By the way, in the present embodiment, there is provided means for externally transmitting a voice message to a predetermined telephone number destination based on the alarm notification command.

That is, as shown in FIG. 8, control is performed when a fire detection signal is input from the fire detector 5 in the sensor interface unit 39 of the housing information panel 3 or when operation information of the emergency button of the operation unit 32 is input. The unit 30 extracts the telephone number of the transmission destination (report destination) registered in the storage unit 31 in advance, generates the alarm notification command information including this telephone number, and uses the GK / GW by the digital multiplex packet according to the IP protocol.
It is transmitted to the device 8. The GK / GW device 8 fetches the alarm notification command information into the control unit 80 via the network interface unit 82, and the control unit 80 that has acquired this alarm notification command information sets the telephone number included in the alarm notification command information. Telephone (mobile phone 20 in this embodiment)
When a call path is established between the public network PT such as ISDN and the called mobile phone 201 via the base station 200 by calling ISDN interface unit 83 to 1), it is stored in storage unit 81. A message corresponding to the content of the alarm notification command information is transmitted from the voice message of the fire occurrence or the emergency occurrence to the mobile phone 201 to notify the fire occurrence or the emergency occurrence. As a result, it is possible to notify the outside report destination of a fire or emergency.

(Embodiment 2) This embodiment corresponds to the invention of claim 2, and the video information transmitted from the lobby intercom 1 or the surveillance camera device 7 in packets is transmitted to the network as shown in FIG. The control unit 30 of the housing information panel 3 loaded via the interface unit 37 for unpacking is temporarily unpacketized and then temporarily stored as compressed video information in the storage unit 31.
The electronic mail (hereinafter referred to as E-Mail) (M) with the stored compressed video information as an attachment file is automatically created by the electronic mail transmission function provided in the control unit 30. It is characterized in that it is transferred to a mail transmission destination address registered in advance in the storage unit 31.

The E-Mail (M) thus transmitted is G
The control unit 80 of the K / GW device 8 takes in the E-Mail (M), which is taken in through the network interface unit 82 and is taken in by the control unit 80, from the local network signal form to the ISDN signal form, and the ISDN interface unit. The information is transmitted from the public network PT via 83 to the gateway device (GW0) of the Internet connection provider ISP. The gateway device (GW0) of the Internet service provider ISP returns the E-Mail (M) to the original signal and sends it to the mail server (MS0) of the Internet service provider ISP, and the mail server (MS0) receives the E-Mail. (M) is transmitted from the Internet IN to the mail server (MS1) that manages the destination address. In this way, the mail server (MS1) that finally receives the E-Mail (M) (manages the destination address) receives the E-Mail function-equipped mobile phone 201 or the like via the gateway (GW1). To the base station 200. As a result, the video information attached to the E-Mail (M) can be confirmed by being expanded by the mobile phone 201 or the like at the destination and reproduced by the display device.

Since the other construction and operation are the same as those of the first embodiment, illustration and description thereof will be omitted.

(Embodiment 3) This embodiment corresponds to the invention of claim 3, and as shown in FIG. 10, for example, when voice information is exchanged between the house information boards 3 and 3. When a packet of voice information (for example, “voice 3” shown in FIG. 10) is received from one of the housing information boards 3 and a packet reception error occurs due to the packet being lost (indicated by X in the figure) , The control unit 3 of the house information panel 3 on the receiving side instead of the packet of the voice information that has become a reception error
Background noise information (N
S) is taken out and arranged in place of the missing packet in the packet sequence (indicated as “voice 1” and “voice 2” in the figure) at the position where the originally lost packet is placed, and the voice processing unit 3
5, the voice information of the missing packet is interpolated by the background noise information (NS).

The other constructions and operations including the housing information board 3 are the same as those in the first embodiment, and the illustration and description thereof will be omitted. The function of the interpolation processing of this embodiment can also be applied to the system corresponding to the second embodiment. Further, the function of the interpolation processing of the present embodiment is not limited to the house information board 3, but the system master unit 2
It can also be applied to voice communication using the lobby intercom 1.

(Embodiment 4) This embodiment corresponds to the invention of claim 4, and as shown in FIG. 11, for example, let's try to receive at present under the control of the control unit 30 of the house information board 3. If the voice information of the previous packet of the voice information packet to be stored is stored in the storage unit 31 and a reception error occurs, the voice information of the previous packet stored in the storage unit 31 is the missing packet. The feature is that it interpolates the audio information of.

That is, as shown in FIG. 11, for example, when voice information is exchanged between the housing information boards 3 and 3, a packet of audio information from one housing information board 3 (for example, FIG. 10).
If a packet reception error occurs due to the packet being dropped while receiving "Voice 3" shown in Fig. 3) (indicated by X in the figure), the receiving house is replaced with the voice information packet that caused the reception error. The control unit 30 of the information board 3 reads the voice information (shown as "voice 2" in the figure) of the previous packet stored in the storage unit 31 and replaces the missing packet with a sequence of packets (in the diagram, "2"). The voice information of one previous packet is interpolated by arranging at a position where the originally missing packet of voice 1 "," voice 2 ") is placed and transmitted to the voice processing unit 35.

The other constructions and operations including the housing information board 3 are the same as those of the first embodiment, and the illustration and description thereof will be omitted. The function of the interpolation processing of this embodiment can be applied to the system corresponding to the second embodiment. Further, the interpolation processing function of the present embodiment can be applied not only to the home information panel 3 but also to voice communication with the system master unit 2 and the lobby intercom 1.

(Embodiment 5) This embodiment corresponds to the invention of claim 5, and as shown in FIG. 12, a packet of image information (“image in FIG. 12” from the lobby intercom 1 to the house information panel 3). 1 ”,“ video 2 ”...) is transmitted from the lobby intercom 1 under the control of the control unit 100 (see FIG. 5) according to the operation information from the operation unit 102 of the lobby intercom 1. It is characterized in that it has a function of changing the frame rate (the number of frames transmitted per second) of the video information transmitted to the panel 3, as shown in FIG.
In the case of (a), the number of frames is, for example, 30 fps, but the number of frames can be changed to 15 fps by the above operation as shown in FIG.

The rest of the configuration and operation including the lobby intercom 1 are the same as those of the first embodiment, and therefore illustration and description thereof are omitted. Of course, the function of this embodiment can be applied to the system corresponding to the second to fourth embodiments.

(Embodiment 6) This embodiment corresponds to the invention of claim 6 and, as shown in FIG. 13, a control unit 80 (see FIG. 3) of the GK / GW device 8 for performing band management.
Controls the lobby intercom 1 that receives the control command (CM) by packetizing and transmitting control command information (CM) including the frame rate value of the video information to the lobby intercom 1 according to the currently used band. Part 10
0 (see FIG. 5) is characterized in that it has a function of automatically changing the frame rate (the number of frames transmitted per second) of the video information transmitted to the housing information panel 3, and FIG.
In the case of (a), the number of frames is, for example, 30 fps, but FIG. 13B shows a state in which the number of frames is changed to 15 fps by the control command (CM).

The other constructions and operations including the lobby intercom 1 and the GK / GW equipment 8 are the same as those in the first embodiment, and therefore the illustration and description thereof are omitted. Of course, the function of this embodiment can be applied to the system corresponding to the second to fourth embodiments. (Embodiment 7) This embodiment corresponds to the invention of claim 7, and is for network of the lobby intercom 1 when transmitting video information from the lobby intercom 1 to the housing information panel 3 as shown in FIG. Interface unit 10
7 (see FIG. 5), a function to detect the packet transmission status such as the number of collisions with information packets transmitted by other devices and the waiting time for packet transmission by other devices is provided, and the lobby is based on the detected value. Intercom 1 is control unit 10
It is characterized in that the frame rate (the number of frames transmitted per second) of the video information transmitted to the housing information panel 3 is automatically changed under the control of 0. In the case of FIG. For example, although it is 30 fps, FIG. 14B shows a state in which the number of frames is changed to 15 fps by the above control.

The rest of the configuration and operation including the lobby intercom 1 and the GK / GW equipment 8 are the same as those of the first embodiment, and therefore illustration and description thereof will be omitted. Of course, the function of this embodiment can be applied to the system corresponding to the second to fourth embodiments.

[0073]

According to the first aspect of the present invention, the transmission of voice information between the information devices provided on the premises for making a voice call and the information device provided with the image pickup camera to the information device provided with the monitor means for monitoring the image. Since it is a local communication system for transmitting the video information and the alarm notification command information by digital multiplex packet transmission by the IP protocol through the local network in the premises, the video information, the voice information, and the alarm notification command information are transmitted in the same local area. It is possible to transmit and receive on multiple channels at the same time by using the network signal line, and as a result, there is an effect that the wiring can be saved and the function can be easily expanded. Moreover, it is interposed between the external public network and the local network on the premises. However, when the above alarm notification command is received, a fire / emergency message is sent to the external telephone via a public network via a voice message. Since is provided a gateway having means for broadcasting, there is an effect that it is possible to notify the abnormality of the fire and emergency occurrence to go such as a mobile phone of the telephone.

According to a second aspect of the present invention, transmission of voice information between information devices for making a voice call provided on the premises and a video image from the information device having the image pickup camera to the information device having monitor means for monitoring the video image. Since it is a local communication system that carries out the information transmission by digital multiple packet transmission by the IP protocol through the local network of the campus, it is possible to transmit and receive the video information and the audio information simultaneously in a plurality of channels using the signal line of the same local network. As a result, there is an effect that the wiring can be saved and the function can be easily expanded. Moreover, the information device that receives the video information generates an e-mail with the received compressed video information as an attachment file. In addition, it is equipped with an email sending means for sending the email to a preset email address. Because, there is an effect that it is possible to check the video at the time of absence in an e-mail-enabled mobile phones and the like Mailer equipped terminal of the go.

According to a third aspect of the present invention, transmission of voice information between information devices for making a voice call provided on the premises, and a video image from the information device equipped with the image pickup camera to the information device equipped with monitor means for monitoring the video. Since it is a local communication system that carries out the information transmission by digital multiple packet transmission by the IP protocol through the local network of the campus, it is possible to transmit and receive the video information and the audio information simultaneously in a plurality of channels using the signal line of the same local network. As a result, there is an effect that the wiring can be saved and the function can be easily expanded. Moreover, when the voice information is transmitted / received to / from another information device to / from the voice information transmission / reception. When it detects that the received voice information packet is missing, it interpolates the voice information of the missing packet with the background noise information stored in advance. It is provided with the means that, even if a packet reception error of the voice information at the receiving side, there is an effect that can reproduce the sound without discomfort.

According to a fourth aspect of the present invention, transmission of voice information between information devices for making a voice call provided on the premises and a video image from the information device having an image pickup camera to the information device having monitor means for monitoring the video image. Since it is a local communication system that carries out the information transmission by digital multiple packet transmission by the IP protocol through the local network of the campus, it is possible to transmit and receive the video information and the audio information simultaneously in a plurality of channels using the signal line of the same local network. As a result, there is an effect that the wiring can be saved and the function can be easily expanded. Moreover, when the voice information is transmitted / received to / from another information device to / from the voice information transmission / reception. When it detects that the packet of the received voice information is missing, it interpolates with the voice information of the packet immediately before the missing packet. Even if a packet reception error of the voice information on the side, there is an effect that can reproduce the sound without discomfort.

According to a fifth aspect of the present invention, transmission of voice information between information devices for making a voice call provided on the premises and a video image from the information device equipped with an image pickup camera to the information device equipped with monitor means for monitoring the video. Since it is a local communication system that carries out the information transmission by digital multiple packet transmission by the IP protocol through the local network of the campus, it is possible to transmit and receive the video information and the audio information simultaneously in a plurality of channels using the signal line of the same local network. As a result, there is an effect that the wiring can be saved and the function can be easily expanded. Moreover, when the video information is exchanged between the information devices, the function of adjusting the frame rate of the video is operated. Since it is equipped with an information device that does this, it can be used by reducing the frame rate of the video when the bandwidth used is congested. There is an effect that it is possible to suppress the band.

According to a sixth aspect of the present invention, transmission of voice information between information devices for making a voice call provided on the premises and a video image from the information device equipped with an image pickup camera to the information device equipped with monitor means for monitoring the video image. Since it is a local communication system that carries out the information transmission by digital multiple packet transmission by the IP protocol through the local network of the campus, it is possible to transmit and receive the video information and the audio information simultaneously in a plurality of channels using the signal line of the same local network. As a result, there is an effect that the wiring can be saved and the function can be easily expanded. Moreover, when the image information is exchanged between the information devices, the frame rate of the image can be changed according to the band currently used. Since a gatekeeper with a function to instruct adjustment is provided, the frame rate of the video can be reduced when the used bandwidth is crowded. There is an effect that it is possible to suppress the bandwidth used by dropping the bets.

According to a seventh aspect of the present invention, transmission of voice information between information devices for making a voice call provided on the premises and a video image from the information device having the image pickup camera to the information device having monitor means for monitoring the video image. Since this is a local communication system for transmitting information by digital multiplex packet transmission by the IP protocol through the local network in the local area, the video information, the voice information, and the alarm notification command information are simultaneously transmitted using the signal line of the same local network. It is possible to send and receive on multiple channels, and as a result, there is the effect that wiring can be saved and the functions can be easily expanded, and the number of collisions of video information packets during the transfer of video information between information devices. A device that detects the packet transmission status such as transmission wait time and the video frame rate according to the detected content. The, since the provided information device that transmits video information, there is an effect that it is possible to suppress the bandwidth used by decreasing the frame rate of the video such as if the used bandwidth is congested.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an entire system according to a first embodiment of the present invention.

FIG. 2 is a circuit configuration diagram of a house information board used in the above.

FIG. 3 is a circuit configuration diagram of a gatekeeper / gateway device used in the above.

FIG. 4 is a circuit configuration diagram of a system master unit used in the above.

FIG. 5 is a circuit configuration diagram of a lobby intercom used in the above.

FIG. 6 is a circuit configuration diagram of a surveillance camera device used in the above.

FIG. 7 is an explanatory diagram of a processing example of bandwidth management by command communication between the lobby intercom and the gatekeeper / gateway device used in the above.

FIG. 8 is an explanatory diagram of a processing example of alarm notification command information between the house information panel and the gatekeeper / gateway device used in the above.

FIG. 9 is an explanatory diagram of a processing example of video information between the house information panel and the gatekeeper / gateway device used in the second embodiment of the present invention.

FIG. 10 is an explanatory diagram of a processing example when a packet is missing in the house information board used in the third embodiment of the present invention.

FIG. 11 is an explanatory diagram of a processing example when a packet is missing in the house information board used in the fourth embodiment of the present invention.

FIG. 12 is an explanatory diagram of an example of a process of changing the number of frames of video information according to the fifth embodiment of the present invention.

FIG. 13 is an explanatory diagram of a processing example of changing the number of frames of video information according to the sixth embodiment of the present invention.

FIG. 14 is an explanatory diagram of an example of a process of changing the number of frames of video information according to the seventh embodiment of the present invention.

FIG. 15 is a system configuration diagram of a conventional example.

[Explanation of symbols]

1 Lobby intercom 2 system master unit 3 housing information boards 4 Doorphone subunit 5 Fire detector 7 Surveillance camera device 8 Gatekeeper / Gateway equipment 10, 12 hubs 11 router X1, X2 building LB Lobby H dwelling unit L signal line PT public network ISP Internet connection provider IN Internet 200 base stations 201 mobile communication terminal

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G08B 25/10 G08B 25/10 D 5K101 29/18 29/18 Z H04B 7/26 H04M 3/00 B H04M 3/00 9/00 F 9/00 H H04Q 3/58 101 H04Q 3/58 101 H04B 7/26 K (72) Inventor Ryo Ito 1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd. F-term ( (Reference) 5C087 BB03 BB12 BB20 BB32 BB46 BB65 BB75 CC44 DD04 DD05 DD06 DD26 DD36 EE13 EE14 FF01 FF02 FF19 FF23 FF24 GG02 GG67 GG70 5K038 AA06 CC03 CC12 DD01 BB15 BB01 BB21 BB01 BB12 BB15 BB01 BB15BB02 BB15 BB15BB02 BB15BB02 BB15BB02 BB15BB02 BB15BB02 BB15BB02 BB12BB15A02 CC04 DD01 DD15 HH27 JJ13 5K067 BB04 BB21 BB44 CC08 DD52 DD53 HH05 LL01 LL05 LL13 5K101 KK14 LL01 LL05 LL12 MM02 NN06 NN14 PP03 RR12 SS07

Claims (7)

[Claims] Claim: What is claimed is: 1. Transmission of voice information between information devices provided on the premises for making a voice call, and transmission of video information from an information device equipped with an imaging camera to an information device equipped with monitor means for monitoring a video. , Through the local network on campus
An internal communication system for performing digital multiplex packet transmission according to the P protocol, comprising information means for issuing an alarm notification command, and transmitting the above alarm notification command by digital multiplex packet transmission according to the IP protocol through the local network, Intervening between an external public network and a local network on the premises,
An internal communication system comprising: a gateway having means for making a fire / emergency notification by voice message to an external telephone via a public network when receiving the alarm notification command. 2. Transmission of audio information between information devices provided on the premises for making a voice call, and transmission of video information from the information device equipped with an imaging camera to the information device equipped with monitor means for monitoring video. , Through the local network on campus
A private communication system for performing digital multiplex packet transmission according to the P protocol, wherein an information device that receives video information generates an e-mail with the received compressed video information as an attachment file, and An internal communication system comprising: a mail transmitting means for transmitting a mail to a preset mail address. 3. Transmission of voice information between information devices provided on the premises for making a voice call and transmission of video information from the information device equipped with an imaging camera to the information device equipped with monitor means for monitoring video. , Through the local network on campus
A private communication system that performs digital multiplex packet transmission according to the P protocol, and is a packet of voice information received while transmitting and receiving voice information to and from another information device that transmits and receives voice information. A local communication system comprising means for interpolating voice information of a missing packet with background noise information stored in advance when it is detected that the voice is missing. 4. Transmission of audio information between information devices provided on the premises for making a voice call and transmission of video information from the information device equipped with an imaging camera to the information device equipped with monitor means for monitoring video. , Through the local network on campus
A private communication system that performs digital multiplex packet transmission according to the P protocol, and is a packet of voice information received while transmitting and receiving voice information to and from another information device that transmits and receives voice information. Is detected, the voice information of the missing packet is interpolated with the voice information of the packet immediately before the missing packet. 5. Transmission of audio information between information devices provided on the premises for making a voice call and transmission of video information from the information device equipped with an imaging camera to the information device equipped with monitor means for monitoring video. , Through the local network on campus
An internal communication system for performing digital multiplex packet transmission according to the P protocol, which is provided with an information device for exchanging image information, which has a function of adjusting a frame rate of the image when the image information is exchanged between the information devices. A local communication system characterized in that 6. Transmission of audio information between information devices provided on the premises for making a voice call and transmission of video information from the information device equipped with an imaging camera to the information device equipped with monitor means for monitoring video. , Through the local network on campus
This is a local communication system that performs digital multiplex packet transmission according to the P protocol, and has a function of instructing adjustment of the frame rate of video according to the band currently used when transmitting and receiving video information between information devices. A local communication system, which is provided with a gatekeeper. 7. Transmission of audio information between information devices provided on the premises for making a voice call and transmission of video information from the information device equipped with an imaging camera to the information device equipped with monitor means for monitoring video. , Through the local network on campus
A local area communication system that performs digital multiplex packet transmission according to the P protocol, and detects the packet transmission status such as the number of collisions of video information packets and the transmission waiting time while exchanging video information between information devices. Then
An internal communication system, wherein an information device for transmitting video information has a function of adjusting a frame rate of video according to the detected content.