WO2004032085A1

WO2004032085A1 - Monitoring system and relay device

Info

Publication number: WO2004032085A1
Application number: PCT/JP2003/012550
Authority: WO
Inventors: Susumu Okada; Maki Amishima; Sachiko Takeshita; Hitoshi Yashio
Original assignee: Matsushita Electric Industrial Co., Ltd.
Priority date: 2002-10-01
Filing date: 2003-09-30
Publication date: 2004-04-15
Also published as: JP2004126864A

Abstract

A monitoring system includes a monitoring device (10) for monitoring an object to be monitored, a monitoring terminal device (40) for a monitoring person to monitor the object to be monitored at a place apart from the monitoring device, and a relay device (20) connected to the monitoring device (10) and to the monitoring terminal device (40) via a network for transmitting the monitoring information from the monitoring device (10) to the monitoring terminal device (40). Modification of the monitoring terminal device (40) accompanying the movement of the monitoring person is transmitted to the relay device (20) according to the movement of the monitoring person, so that the relay device (20) transmits the monitoring information from the monitoring device (10) to the monitoring terminal device (40) according to the location of the monitoring person. Since alarm information is transmitted from the relay device (20) to the monitoring terminal device (40) where the monitoring person is present, it is possible to prevent a case that the alarm is transmitted to a monitoring center but the monitoring person does not notice it. Thus, it is possible to provide a monitoring system capable of appropriately relaying the information from the monitoring camera and rapidly transmitting the necessary monitoring information to the monitoring person.

Description

Detailed description Monitoring system and relay device <Technical field>

The present invention relates to a monitoring system that transmits monitoring information through a network, and a relay device that controls transmission of monitoring information.

Remote image surveillance systems that monitor surveillance camera images at remote centers use LANs that can reduce costs from CCTV (Closed Circuit Television) systems that connect surveillance cameras and surveillance centers through dedicated lines. And the method of using the Internet is changing.

A remote image monitoring system using internet is described, for example, in Japanese Patent Application Laid-Open No. 2001-3057 (JP-A- 200 309357). In this system, as shown in FIG. 36, a monitoring camera device 1 provided with an alarm sensor and a camera is connected via a network to a relay server 2 provided with a means for storing image data, and a display means is provided. Prepare a monitoring center 3 connected to the relay server 2 via the network%.

When the alarm sensor detects an abnormality, the monitoring camera device 1 transmits an alarm notification and image data of the camera to the relay server 2. The relay server 2 stores the image data of the camera in the storage means, reports an abnormality to the monitoring center 3, and transmits the stored image data to the monitoring center 3. The monitoring center 3 displays the video of the monitoring camera device 1 sent from the relay server 2 on the display means.

The role of this relay server 2 is to execute the application 'software function The ASP (Application Service Provider) will be responsible for the Monitoring Center 3 being able to be configured with low-cost equipment such as personal computers (PCs), PDAs, mobile phones, PHS machines, TV phones, etc. Operation costs can be kept low.

However, in the conventional system, for example, when a personal surveillance camera is installed at home and the surveillance camera image is viewed at a work place or when there is a shortage of people in a building surveillance etc, surveillance is performed without replacement personnel. When viewing a camera image, etc., the observer can not notice the alarm even if the alarm is notified to the monitoring center when the observer leaves the surveillance terminal by going out or returning home. There is a problem that the occurrence of an alarm is not communicated to the observer until the observer returns to the place where the observer was viewing the surveillance video or receiving the surveillance information.

Furthermore, in the conventional system, since the ASP relays the surveillance video of the surveillance camera and sends it to the surveillance center, the load on the ASP is large when the ASP receives the surveillance video of many surveillance cameras and sends it to the surveillance center. When there are video requests from multiple surveillance centers, etc., it takes a lot of time for the ASP to complete the processing, or the camera video passes through the ASP to reach the surveillance center. There is a problem that a minute delay occurs, and it takes time for the observer to understand the change in the surveillance video. Of the invention>

The present invention solves such conventional problems, and can securely notify the monitoring information to the monitoring person when an abnormality such as an alarm occurs regardless of the terminal or the location of the monitoring person. When transmitting the video of the monitoring camera to the monitoring terminal while reducing the load on the ASP that manages the information on the monitoring device such as the camera and the information on the monitoring terminal that receives the monitoring video and the alarm signal at the monitoring center. To reduce the delay of It aims at providing a monitoring system and relay device that can be

Therefore, in the present invention, a monitoring device for monitoring a monitoring target, a monitoring terminal device of a monitoring person monitoring the monitoring target in an area away from the monitoring device, and a monitoring device and monitoring terminal device via a network are connected. In a monitoring system including a relay device that transmits monitoring information of the monitoring device to the monitoring terminal device, a notification of a change in the monitoring terminal device accompanying the movement of the surveillance person's location notifies the relay device according to the movement of the surveillance person's location. The relay device is configured to transmit the monitoring information of the monitoring device to the monitoring terminal device according to the location of the monitoring person.

Therefore, it is possible to transmit alarm information to the monitoring terminal device of the surveillance person's location wherever the surveillance person is.

Furthermore, when the relay device receives an alarm from the monitoring device, the relay device calls and connects the monitoring device to the monitoring terminal device according to the location of the monitoring person, and the video taken by the monitoring device is transmitted to the monitoring terminal device. It is like that.

As described above, when an alarm occurs, the monitoring device such as the monitoring camera and the terminal of the monitoring person are directly connected, and the monitoring video is transmitted from the monitoring device to the terminal of the monitoring person, reducing the load on the relay device. In addition, it is possible to reduce the transmission delay by not passing through the relay device when transmitting the monitoring video.

Also, in this monitoring system, when the relay device can not make a call connection with the monitoring terminal device according to the location of the supervisor, or when it can not notify the monitoring information, it makes a call connection with another monitoring terminal device registered in advance. Or you are notified of monitoring information.

With this configuration, even if connection can not be made to the monitoring terminal that was attempting to be automatically connected, it is possible to connect to another monitoring terminal device and to transmit alarm information to the monitoring person.

In addition, in this monitoring system, when a monitoring device is newly installed or relocated, The registration data including the type of the monitoring information output by the monitoring device and the installation position is transmitted to the relay device, the relay device stores the registration data, and transmits the registration data to the monitoring terminal device of the supervisor. I have to.

With this configuration, the monitoring device can be incorporated into the monitoring system simply by transmitting registration data from the monitoring device to the relay device. Therefore, the process when adding or relocating surveillance cameras is simple.

FIG. 1 is an explanatory view illustrating a monitoring system according to a first embodiment of the present invention,

FIG. 2 is a block diagram showing the configuration of the alarm relay device in the first embodiment,

FIG. 3 is a block diagram showing the configuration of the surveillance camera apparatus in the first embodiment.

FIG. 4 is a block diagram showing the configuration of the monitoring terminal device in the first embodiment, and FIG. 5 is an explanatory diagram for explaining the monitoring system in the second embodiment of the present invention,

FIG. 6 is a block diagram showing the configuration of the alarm relay device in the second embodiment,

FIG. 7 is a block diagram showing the configuration of a surveillance camera apparatus according to the second embodiment.

FIG. 8 is a block diagram showing a configuration of a monitoring terminal device in the second embodiment, and FIG. 9 is an explanatory diagram for explaining a monitoring system in the third embodiment of the present invention,

FIG. 10 is a block diagram showing the configuration of the alarm relay device in the third embodiment. And

FIG. 11 is a diagram showing an example of a screen display of the monitoring terminal apparatus in the third embodiment, and FIG. 12 is an explanatory diagram for explaining a monitoring system in the fourth embodiment of the present invention,

FIG. 13 is a block diagram showing the configuration of the alarm relay apparatus in the fourth embodiment,

FIG. 14 is an explanatory diagram for explaining a monitoring system according to a fifth embodiment of the present invention,

FIG. 15 is a block diagram showing a configuration of an alarm relay device in the fifth embodiment,

FIG. 16 is an explanatory diagram for explaining a monitoring system according to a sixth embodiment of the present invention;

FIG. 17 is a block diagram showing the configuration of the alarm relay apparatus according to the sixth embodiment,

FIG. 18 is a block diagram showing a configuration of a surveillance camera device in a sixth embodiment,

FIG. 19 is an explanatory view for explaining a modification of the monitoring system in the sixth embodiment,

FIG. 20 is a diagram showing a location registration sequence in the first embodiment, and FIG. 21 is a diagram showing an alarm transmission sequence to the relay device in the first embodiment.

FIG. 22 is a diagram showing an alarm notification sequence to the monitoring terminal device in the first embodiment,

FIG. 23 is a diagram showing an alarm notification sequence to a non-response monitoring terminal device in the first embodiment, FIG. 24 is a diagram showing a monitoring terminal and an automatic connection sequence between cameras in the second embodiment,

FIG. 25 is a diagram showing an automatic connection sequence with a non-response monitoring terminal in the second embodiment,

FIG. 26 is a diagram showing an alarm condition registration sequence in the third embodiment.

FIG. 27 is a diagram showing a surveillance camera additional registration sequence in the sixth embodiment,

FIG. 28 is a diagram showing the data structure of the SIP message in the first embodiment,

FIG. 29 is a diagram showing a data structure of supervisor location registration data in the first embodiment,

FIG. 30 is a diagram showing a data structure of alarm data in the first embodiment.

FIG. 31 is a diagram showing a data structure of alarm notification data in the first embodiment,

FIG. 32 is a diagram showing a data structure of automatic connection instruction data in the second embodiment,

FIG. 33 is a diagram showing a data structure of automatic connection cancellation instruction data in the second embodiment,

FIG. 34 is a diagram showing a data structure of alarm condition registration data in the third embodiment,

FIG. 35 is a diagram showing a data structure of surveillance camera registration data in the sixth embodiment,

FIG. 36 is an explanatory diagram for explaining a conventional monitoring system. Reference numerals in the figure 1 is a surveillance camera apparatus, 2 ASP, 3 monitoring center 10 is a monitoring camera apparatus, 11 is imaging unit, 12 video transmission unit, I ³ is the alarm generating unit 14 is alarm transmission , 17: installation location · alarm type registration unit, 20: alarm relay device, 21: alarm information reception unit, 22: information recording medium, 23: alarm information management unit, 24: call control unit, 25: supervisor location information Reference numeral 26 denotes an alarm information transmission unit, 27 denotes a video transmission request unit, 28 denotes an alarm information call control command transmission unit, 29 denotes an alarm condition information reception unit, 30 denotes a monitoring device management unit, 40 denotes a monitoring terminal, 41 denotes a monitoring terminal device Video receiver 42, Video player 43, Command transmitter and receiver 44, Location register 44, Alarm display 45, Request alarm input 46, Live video display split screen 51, Live video display 52 Split screen, 53 is the stored video display Split screen, 54: GUI button for searching stored video, 60: Internet, 61: Internet, 70: video storage device, 71: video transmission unit, 72: video reproduction unit, 73: command transmission / reception unit, 74: Video receiving unit 75 Video recording unit 76 Video storage medium 76 Video storage device 80 Video transmission unit 81 Video playback unit 82 Video transmission / reception unit 83 Video reception unit 84 Video recording unit 85 Reference numeral 86 denotes a video storage medium, 110 denotes a monitoring camera device, 231 denotes an information conversion unit, 241 denotes a notification availability determination unit, 401 denotes a monitoring terminal device, 402 denotes a monitoring terminal device, and 403 denotes a monitoring terminal device.

BEST MODE FOR CARRYING OUT THE INVENTION

First Embodiment

In the first embodiment of the present invention, a monitoring system will be described in which the relay server is notified of the location of the monitor, and when an alarm occurs, the relay server notifies the location of the monitor of the alarm.

Figure 1 schematically shows this monitoring system. This system receives alarm information from the surveillance camera device 10 equipped with an alarm sensor and the surveillance camera device 10 via the Internet, and monitors alarm information via the Internet. It consists of a server (alarm relay device) 20 that sends data to the terminal, and a monitoring terminal device 40 such as a PC or a portable terminal that the supervisor of the monitoring center uses at each location. Every time the monitor changes the location and changes the monitoring terminal 40 used, the location notification is sent to the alarm relay device 20 (1). The monitoring camera device 10 generates an alarm when the sensor detects an abnormality (2), and the alarm relay device 20 transmits an alarm notification to the location of the supervisor (3).

As shown in FIG. 2, the alarm relay device 20 receives an alarm information reception unit 21 that receives alarm information from a sensor device attached to the monitoring camera device 10 via the Internet 60, and an observer from the monitoring terminal device 40. From the information recording medium 22 for receiving the location information, the information recording medium 22 for storing the location information of the monitoring person, the alarm conditions specified by the monitoring person, etc., and the alarm information The alarm information management unit 23 instructs sending of alarm information according to the location information and alarm conditions of the observer, and the call control unit 24 performs call control by converting transmission information into a message of a predetermined protocol. And an alarm information transmission unit 26 for transmitting alarm information to a destination via the Internet 61.

The supervisor can register the alarm condition in the alarm relay device 20 in advance, and the registered alarm condition is stored in the information recording medium 22. When the alarm relay device 20 receives alarm information from the monitoring camera device 10, it performs alarm notification processing according to the registered alarm conditions. As the alarm conditions, it is possible to specify a monitoring camera device that requests alarm information, a type of alarm, a notification method of alarm information, a priority of a monitoring terminal device that receives alarm information, and the like. The alarm condition registration process will be described in detail in the fifth embodiment.

The configuration of the monitoring camera device 10 is shown in FIG. This apparatus comprises: a photographing unit 11 for photographing a video; a video transmission unit 12 for transmitting photographed video data to a monitoring terminal device 40 via the Internet 60; an alarm generation unit 13 for generating an alarm; And an alarm transmission unit that transmits the generated alarm to the alarm relay device via the Internet SO.

Here, the monitoring camera device 10 which performs alarm generation inside the device is shown. Abnormality detection at the time of issuance of a frame can be performed using, for example, motion detection technology of image analysis, taking differences between frames, detecting an intruder from the differences, and generating an alarm. As shown in FIG. 2, a sensor device 15 (limit switch, light switch, magnetic sensor, infrared sensor, etc.) is provided outside the monitoring camera device 10, and an alarm is generated based on the detection result of the sensor device 15. You may Also, as shown in FIG. 4, the monitoring terminal device 40 includes a video receiving unit 41 that receives video data via the Internet 61, a video reproducing unit 42 that reproduces video and outputs it to a monitor, and a mouse and a keyboard. A location registration unit 44 for performing registration processing of location information input from the device; a command transmission / reception unit 43 for transmitting location information to the alarm relay device 20 via the Internet 61; and receiving alarm information from the alarm relay device 20; And an alarm display unit 45 for displaying alarm information on a monitor.

In this monitoring system, SIP (Session Initiation Protocol) is used for call signaling (a mechanism for passing call control information) of the monitoring camera device 10, the alarm relay device 20 and the monitoring terminal device 40. SIP is characterized in that it is designed to make effective use of existing protocols widely used on IP networks, and that it can be expressed in text, and is generally processed in comparison with H.323. It is said to be light and easy to implement.

Figure 28 shows the data structure of the SIP message. In the SIP header, the message type, destination address (To header), source address (From header), message identification number (Call-ID), and other information are described as necessary, and the SIP message body (text) In), data in MIME (Multipurpose Internet Mail Extensions) format is described by XML text etc. Registration of location information from the monitoring terminal device 40 is performed in the sequence of FIG. The monitoring terminal device 40 transmits a SIP message of location registration (corresponding to a REGISTER message of SIP) to the alarm relay device 20 (1), and the supervisor location information reception unit 25 of the alarm relay device 20 receives this. To the alarm information management unit 23 (2). The alarm information management unit ²³ records the location information on the information recording medium 22 (3), and notifies the call control unit 24 that the location registration is completed (4). The call control unit 24 creates a SIP response message of location registration completion and sends it to the alarm information transmission unit 26 (5). The alarm information transmission unit 26 sends a location registration completion message to the monitoring terminal 40. SIP response 200 OK Will be sent (6).

FIG. 29 shows the data structure of the SIP message that corresponds to the REG I STER message of the SIP that performs location registration. Here, in the SIP header, “Location registration request” indicating the message type, “address of alarm relay device (registration destination)” of destination, “address of monitoring terminal device (registration)” of transmission source, “location registration” Valid period and registered identification number are described, and "monitor terminal information" such as supervisor information and terminal capability is described in the SIP message body.

This location registration is performed by the following operations of the supervisor.

• (From the company) → Register by entering on the PC screen (GUI) (Manual registration), Register by turning on the PC, Register by registering attendance in the attendance system or location management system, etc. (From outside) → Register by pressing a button on the mobile terminal (for example, an existing button such as a power button or a new button), Manual registration, Attendance system. ) → Register by turning on the power of your home PC, TV, etc. Register manually, Register by leaving registration of attendance system

Further, FIG. 21 shows an alarm transmission sequence from the sensor device 15 to the alarm relay device 20. The sensor device 15 that has detected an abnormality is an alarm relay device 20 Send a sensor alarm to (1). The alarm information reception unit 21 of the alarm relay device 20 transmits alarm information notification to the alarm information management unit 23 (2). The alarm information management unit 23 registers alarm information in the information recording medium 22, and transmits alarm information of the surveillance camera device 10 or the sensor device 15 that has sent this alarm information, and alarm conditions of the surveillance person and location registration of the surveillance person, etc. Search from the information recording medium 22 (3). The search result is output from the information recording medium 22 to the alarm information management unit 23, and the alarm information management unit 23 monitors the monitoring person who should transmit the alarm information and the information of the monitoring terminal device registered in the location of the monitoring person. To get (4).

Figure 30 (a) shows the data structure of the SIP message that conveys alarm information. In the SIP header, the “alarm relay device address” of the destination and the “sensor device address” of the transmission source are described, and the alarm content is described in the SIP message body. If the alarm data does not adopt the SIP method, Figure 30 shows

As shown in (b), the data of the alarm content is from the sensor device is to the alarm relay device

Sent to 20.

Further, FIG. 22 shows a transmission sequence when the alarm relay device 20 transmits alarm information to the monitoring terminal device 40 after the procedure of FIG. The alarm information management unit 23 designates the monitoring terminal device of the location of the observer and instructs the call control unit 24 to transmit the alarm information (1), and the call control unit 24 converts the alarm information into a SIP message. In turn, the alarm information transmission unit ²⁶ outputs the alarm notification (corresponding to the SIP NOTIFY message) to the monitoring terminal 40 (3). The monitoring terminal 40 receiving the alarm notification transmits a SIP response 200 OK to the alarm relay device 20 (4), and the supervisor location information receiving unit 25 receiving this outputs the SIP response 200 OK to the call control unit 24. (5) The call control unit ²⁴ transmits the alarm notification completion to the alarm information management unit 2: 3 (6).

Figure 31 shows an S that corresponds to the SIP NOT I FY message that performs alarm notification. It shows the data structure of the IP message. In this SIP header, "Alarm notification" showing message type, "Monitoring terminal (notification destination) address" of destination, "Alarm relay equipment (notification source) address" of transmission source, "Correspondence registration" about alarm condition The alarm condition effective period and the alarm condition identification number are described, and the SIP message body contains the contact information, the stored information indicating the alarm content registered in the information recording medium 22, and the image information attached to the alarm information Described as “alarm information”.

Also, FIG. 23 shows a sequence when the alarm relay device 20 transmits alarm information to the monitoring terminal device 40 but the monitoring terminal device 40 does not respond due to some trouble. The procedures of (1) to (3) are the same as (1) to (3) in Fig.22. If the monitoring terminal 40 does not respond to the alarm notification (corresponding to the SIP NOTIFY message) (4), the supervisor location information receiving unit 25 does not return an information transmission response to the call control unit 24 (5). . The call control unit 24 determines that the alarm notification to the monitoring terminal device 40 is not possible when the information transmission response is not returned even if a predetermined time has elapsed from the time of the alarm information transmission instruction (2), Alarm notification impossibility notification is issued to the alarm information management unit 23 (6). The alarm information management unit 23 registers notification impossibility of the corresponding alarm information in the information recording medium 22 and searches the information recording medium 22 again for the alarm condition for the monitoring camera device 10 or the sensor device I ⁵ (7 ) When an alarm condition as a search result is acquired, the post-problem processing (whether to retransmit or send to another destination, etc.) is determined according to the alarm condition.

Thus, in this monitoring system, by notifying the alarm relay device of the location of the supervisor, it is possible to receive an alarm at the location of the supervisor. As a result, it is possible to prevent the situation where the observer does not notice even if the alarm is sent to the monitoring center. Second Embodiment

In the second embodiment of the present invention, there will be described a monitoring system in which a monitoring terminal device and a monitoring camera are directly connected after an alarm is generated so that an image of the monitoring camera is directly sent to the monitoring terminal device.

Figure 5 schematically shows this monitoring system. The supervisor notifies the alarm relay device 20 of the location (1). When the surveillance camera device 10 that has detected an abnormality generates an alarm (2), the alarm relay device 20 calls the surveillance terminal device 40 at the location of the supervisor and the surveillance camera device 10 and calls the surveillance camera device 10 to the surveillance terminal. Transmission of video to device 40 begins (3).

As shown in FIG. 6, the alarm relay device 20 includes a video transmission request unit 27 for transmitting a video transmission request to the monitoring terminal device 40 to the monitoring camera device 10, and replacing the alarm information transmission unit. And alarm information Z call control command transmission unit 28 for transmitting a call control command for establishing a call connection with the monitoring camera device 10 to the monitoring terminal device 40 as well as the alarm information (or instead of the alarm information). ing. The other configurations are the same as in the first embodiment (FIG. 2).

Also, as shown in FIG. 7, the monitoring camera device 10 is provided with a command transmission / reception unit 16 which transmits alarm information and receives a video transmission request and transmits it to the video transmission unit 12 instead of the alarm transmission unit. . The other configuration is the same as in the first embodiment (FIG. 3).

Also, as shown in FIG. 8, the monitoring terminal device 40 has the same block configuration as that of the first embodiment (FIG. 4). However, when the command transmitting / receiving unit 43 receives a call control command for establishing connection with the monitoring camera device 10 from the alarm relay device 20, the command transmitting / receiving unit 43 transmits it to the video receiving unit 41.

FIG. 24 shows a sequence for call connection between the alarm relay device 20 which has received the alarm information, the monitoring camera device 10 and the monitoring terminal device 40. Alarm relay equipment Alarm information management unit 23 of the location 20 receives the alarm information, after 2 step 1, with respect to the call control unit ² 4, by specifying the surveillance camera apparatus 10 and monitor terminal device 40, its these Tell the auto connect instruction of (1). The call control unit 24 monitors the monitoring camera device 10 according to the third party call control (3 PCC) function of a third party designating two parties and connecting them to each other according to the provisions of the SIP. Establish a call connection with the terminal device 40. That is, the call control unit 24 instructs the alarm information Z call control command transmission unit 28 to control the third party call (2), and instructs the video transmission request unit 27 to control the third party call (3). In response to this, the alarm information Z call control command transmission unit 28 makes a third-party call control call (corresponding to an SIP INVITE message) to the monitoring terminal device 40 (4), and the image transmission request unit 27 makes a call for third-party call control (corresponding to a video transmission request, an SIP INVITE message) to the monitoring camera device 10 (5). After exchanging information in a session form conforming to the provisions of the third party call control mechanism of the SIP, a call connection is made between the surveillance camera device 10 and the surveillance terminal device 40, and the surveillance camera device 10 directly to the surveillance terminal device 40 It becomes possible to transmit surveillance audio and video.

FIG. 3 2 (a) shows the data structure of the SIP message corresponding to the ISP message, which makes a third-party call control call (video transmission request) to the monitoring camera device 10. In this SIP header, "connection request" indicating the message type, "monitoring camera address" of the destination, "alarm relay device (notification source) address" J of the sender and "connection identification number" are described, and SIP message body Describes “Addressless port for monitoring terminal device video reception”, “Monitoring terminal device information” and “Coding of target image and Frame rate information”.

Further, FIG. 3 2 (b) shows the data structure of the SIP message for making a third party call control call to the monitoring terminal device 40. In this SIP header, "connection request" indicating message type, destination "monitoring terminal device address", source "alarm relay device (notification source) address" and "connection identification number" are described, and SIP message is displayed. In the page, “address for receiving video from surveillance camera device 'port',” “vision camera device information” and “coding of target video 'frame rate information” are described.

The video transmission request unit 27 transmits the SIP message of the data structure shown in FIG. 3 2 (a) to the monitoring camera device 10. Further, the alarm information / call control command transmission unit 28 transmits the SIP message of the data structure shown in FIG. 3 2 (b) to the monitoring terminal device 40. The monitoring camera device 10 and the monitoring terminal device 40 perform the SIP third-party call control connection process shown in FIG. 24 (6) with reference to the received SIP message to connect the call. The SIP third-party call control connection processing, various information of the data that monitoring camera device 10 sends to monitoring terminal device 40, such as the compression format and compression rate of the monitoring voice and video, and also the frame rate and the video size for video. Set After the call connection between the monitoring camera device 10 and the monitoring terminal device 40 is completed, the monitoring camera device 10 starts transmitting monitoring audio and video to the monitoring terminal device 40.

Further, FIG. 25 shows a sequence in the case where the monitoring terminal device 40 does not answer the third party call control call with some trouble. When the alarm information management unit 23 of the alarm relay device 20 receives the alarm information, after the procedure of FIG. 2 1, the call control unit 24 follows the alarm condition between the monitoring camera device 10 and the monitoring terminal device 40. Indicate call connection (1). The procedures of (2) to (4) and (5) are the same as (2) to (4) and (5) in Figure 24. If the third party call control call monitoring terminal device ⁴ 0 no response to the monitoring terminal 40 (6), alarm information Z call control command Transmission unit 26 does not return a call connection response to the call control section 24 ( 7). The call control unit 24 determines that the call connection to the monitoring terminal 40 is not possible when the call connection response is not returned even if a predetermined time has elapsed since the third party call control instruction (2), The third party call control cancellation instruction is sent to the transmission request unit 27 (8), and the video transmission request unit 27 transmits the third party call control call cancellation (corresponding to a BYE or CANCEL message in SIP) to the monitoring camera device 10. (9). Further, the call control unit ² 4 conveys a connection impossible notification to the monitoring terminal device to the alarm information management unit 2 ³ (10). The alarm information management unit 23 registers in the information recording medium 22 that connection is not possible related to the corresponding alarm information, and searches the information recording medium 22 again for the alarm condition for the monitoring camera device 10 or the sensor device I ⁵ ), When the alarm condition of the search result is acquired, processing after trapping is decided according to the alarm condition.

Figure 33 shows the data structure of a SIP message that indicates third-party call control cancellation. This data is only a SIP header that contains the message type “connection cancellation request”, destination “monitoring terminal device address”, sender “alarm relay device (notification source) address” and “connection identification number”. It consists of

In this way, in this surveillance system, when an alarm occurs, the surveillance terminal device at the location of the surveillance person and the surveillance camera are directly connected with each other wherever the surveillance person is, to monitor the video of the surveillance camera. It can be sent to the terminal. Therefore, when the alarm notification comes, the supervisor can watch the live video of the surveillance camera immediately after the alarm is generated, without having to bother to connect the surveillance terminal to the surveillance camera. Can be viewed on the monitoring terminal of

In the present embodiment, a method for connecting a call between the monitoring camera and the monitoring terminal and transmitting an image has been described, but similar call connection can be recorded on a hard disk or a video tape. It may be performed between the video storage device and the surveillance camera. In this case, when the monitoring camera device transmits alarm information, a call is connected between the monitoring camera device and the video storage device, and the video captured by the monitoring camera device is transmitted to the video storage device. This enables the video storage device to store video only when an alarm occurs, leading to a reduction in the usage of hard disk and video tape.

A similar call connection may be made between the video storage device and the monitoring terminal. This In this case, when the monitoring camera device transmits alarm information, a call is connected between the video storage device and the video terminal device, and the video storage device transmits the video stored therein to the monitoring terminal device. As a result, the monitoring person can immediately start browsing the past video stored in the video storage device without the surveillance staff performing a connection operation with the video storage device, and the history of the occurrence of the abnormality and the past situation are displayed. It can grasp with the picture. Third Embodiment

In the third embodiment of the present invention, a procedure in which an observer registers an alarm condition in an alarm relay device will be described.

If the supervisor registers an alarm condition that specifies the type of alarm required, only the required alarm (or its image) is sent under the supervisor.

FIG. 9 schematically shows this monitoring system. The supervisor notifies the alarm relay device 20 of the location and the required alarm type (1). When the monitoring camera device 10 that has detected an abnormality generates an alarm (2), the alarm relay device 20 checks whether the monitoring alarm request is made by the monitoring person (3), and the monitoring person requests the reception alarm. Only notify the overseer if yes (4).

For example, in the case of a system where multiple dwelling houses are monitored by multiple surveillance cameras and sensors, and one alarm relay device, the alarm condition is registered, and the individual receives only the alarm for each home, and the multiple dwelling house manager Can be set to receive all alarms. In addition, in the nursery remote monitoring system (a system for viewing a child who has been deposited at a daycare center from the office or on the go), register alarm conditions so that only one's own child can see it on the monitoring terminal device. Can.

As shown in FIG. 10, the alarm relay device 20 includes an alarm condition information receiving unit 29 for receiving alarm conditions such as alarm type reservation sent from the monitoring terminal device 40. The received alarm condition information is stored in the information recording medium 22 · Registered Be done. The other configuration is the same as the first embodiment (FIG. 2) or the second embodiment (FIG. 6).

Further, as shown in FIG. 11, the monitoring terminal device 40 is provided with a request alarm input unit 46 for inputting alarm conditions such as alarm type reservation to be registered. The other configuration is the same as the first embodiment (FIG. 4) or the second embodiment (FIG. 8).

Registration of alarm conditions from the monitoring terminal device 40 is performed in the sequence of FIG. The monitoring terminal device 40 transmits a SIP message of alarm condition registration (corresponding to a SUBSCRIBE message of SIP) to the alarm relay device 20 (1), and the alarm condition information reception unit 29 of the alarm relay device 20 receives this. Inform alarm information management unit 23 of the alarm condition registration request (2). The alarm information management unit 23 records the alarm condition information on the information recording medium 22 (3), and notifies the call control unit 24 of the completion of the alarm condition registration (4). The call control unit 24 creates a SIP response message of alarm condition registration completion and sends it to the alarm information transmission unit 26 (5). The alarm information transmission unit 26 to the monitoring terminal 40 indicate that the alarm condition registration is completed. 200 OK will be sent (6). The alarm information management unit 23 follows the standard specification for the SUB SCR IBE message, and in order to subsequently return a NOT I FYY response, an alarm condition of the monitoring camera apparatus or sensor in which the alarm condition is set from the information recording medium 22. Information (camera 'sensor information) is searched (7), a response to the search result is obtained (8), and an instruction to transmit camera-sensor information is sent to the call control unit 24 (9). The call control unit 24 converts the camera 'sensor information into a SIP message and sends it to the alarm information transmission unit 26 (10), and the alarm information transmission unit 26 sends the monitoring terminal device 40 to the camera' sensor information of the alarm condition registration response. Information transmission (corresponding to SIP NOTIFY message) is performed (11).

The monitoring terminal device 40 sends the SIP response 200 OK to the alarm relay device 20 (12), and the alarm condition information receiving unit 29 of the alarm relay device 20 receiving this sends the SIP response 200 OK to the call control unit 24 (13⁄4, The control unit 24 becomes the alarm information management unit 23 Inform Alarm Condition Send Complete (14).

Figure 34 shows the data structure of the SIP message that corresponds to the SIP message of the SIP that registers the alarm condition. Here, in the SIP header, “Alarm condition registration request” indicating the message type, “address of alarm relay device (registration source)” of the destination, “address of monitoring terminal device (registration)” of the transmission source, “ The alarm condition registration effective period and the "alarm condition identification number" are described, "target camera monitoring device information" and "alarm condition details" are described in the SIP message body, and the required alarm or alarm is specified as the alarm condition details. In addition, notification methods, linkage information with other monitoring terminal devices, etc. are described.

In this way, by setting alarm conditions and filtering alarms, the supervisor can avoid receiving unnecessary alarms. In addition, the alarm condition to stop the reception of the alarm in the predetermined time zone is set or the alarm reception priority is given to a plurality of monitoring terminal devices, and the monitoring terminal device with high priority does not respond. It is also possible to set an alarm condition so that the monitoring terminal device of the next rank receives the alarm information from time to time.

The registration of the alarm condition may be directly input and registered using the input means of the alarm relay device 20.

Fourth Embodiment

In a fourth embodiment of the present invention, a monitoring system will be described in which the relay server transmits alarm information converted according to the capability of the monitoring terminal to the monitoring terminal that has registered the alarm condition.

Here, as described in the first embodiment, when the relay server attaches the alarm information and transmits the image data to the monitoring terminal device, the image data is converted according to the capability of the monitoring terminal device. An example will be described. Figure 12 schematically shows this monitoring system. The supervisor registers an alarm condition specifying the alarm type in the alarm relay device 20, and registers location information including terminal capability information (1). Now, it is assumed that location information for specifying the monitoring terminal device 402 is registered in the alarm relay device 20.

When the surveillance camera device 10 that has detected an abnormality generates an alarm (2), the alarm relay device 20 refers to the alarm condition to check whether the reception alarm is requested by the supervisor (3) . If it is the alarm information requested by the supervisor, check the terminal capability of the monitoring terminal 402 registered in the location (4) and convert it into alarm information that matches the terminal capability of the monitoring terminal 402 ( 5). For example, the image data received from the monitoring camera device 10 is subjected to inter-frame code conversion processing and codec conversion processing, and converted into image data that can be displayed on the monitoring terminal device 402 of the portable terminal. The alarm relay device 20 attaches the converted image data to the alarm information and transmits it to the monitoring terminal 402 (6).

Therefore, the monitoring terminal device 402 that has received the alarm information can display the image attached to the alarm information.

As shown in FIG. 13, in the alarm relay device 20, the alarm information management unit 23 includes an information conversion unit 231 that converts alarm information. The other configurations are the same as in the third embodiment (Fig. 10). The configuration of the monitoring terminal devices 401 to 403 is also the same as that of the third embodiment (FIG. 11).

The registration of the alarm condition by the supervisor is performed in the sequence of FIG. 26 as described in the third embodiment.

Also, registration of the location information of the supervisor is performed in the sequence of FIG. 20 as described in the first embodiment. The message body of the SIP message (Fig. 2 9) for registering location information contains the capability information of the monitoring terminal device of the location as the monitoring terminal device information, and this terminal capability information is the information of the alarm relay device 20. Record It is stored in the medium 22.

On the other hand, the alarm information output from the monitoring force camera device 10, as explained in the first embodiment, is transmitted to the alarm information management unit ² 3 alarm relay device ² 0 in the sequence of FIG. 1 (2 ). In response to this, the alarm information management unit 23 reads out the alarm condition stored in the information recording medium 22 and the monitoring terminal device information registered in the location (3) (4), and the alarm information type is the alarm condition. Check if it matches the one specified in. If they match, the information conversion unit 231 of the alarm information management unit 23 converts the alarm information into data matching the terminal capability of the surveillance terminal device registered in the location. The alarm information converted into data is transmitted from the alarm information management unit 23 to the monitoring terminal device 40 whose location is registered in the sequence shown in FIG. 22 as described in the first embodiment. Is displayed.

Thus, in this monitoring system, when an alarm occurs, the alarm information can be received by the monitoring terminal device at the location of the supervisor in a form that matches the terminal capability of the monitoring terminal device.

Fifth Embodiment

In the fifth embodiment of the present invention, processing will be described when an alarm condition for designating a spare monitoring terminal device when a call connection with the monitoring terminal device can not be made is registered as an alarm condition.

Here, as described in the second embodiment, an example will be described in which the relay server directly connects the monitoring camera apparatus and the monitoring terminal apparatus using the third party call control mechanism of the SIP.

FIG. 14 schematically shows the process in this case.

As shown in FIG. 14, a supervisor who uses a plurality of monitoring terminal devices 401, 402, and 403 according to the location is a monitoring terminal device 401, 402, The order of 403 can be specified by an alarm condition.

For example, as a call connection destination when the monitoring terminal device 401 can not connect a call, the monitoring terminal device 402 is specified as the first priority and the monitoring terminal device 403 is specified as the second priority, and the monitoring terminal device 402 can not connect the call. As a call connection destination at the time of 1, the monitoring terminal device 403 is designated as the first priority, and the monitoring terminal device 401 is designated as the second priority, and as the call connection destination when the monitoring terminal device 403 can not be connected. The alarm condition which designates the monitoring terminal device 401 as the first and the monitoring terminal device 402 as the second is registered in the alarm relay device 20, and the location information is registered each time the supervisor changes the location (1). . Now, it is assumed that location information for specifying the monitoring terminal device 402 is registered in the alarm relay device 20. When the monitoring camera device 10 that has detected an abnormality generates an alarm (2), the alarm relay device 20 refers to the registered location information to attempt a call connection between the monitoring camera device 10 and the monitoring terminal device 402. . If this call connection fails for any reason (3), the alarm relay device 20 refers to the registered alarm condition and finds the next call connection destination when the call connection with the monitoring terminal device 402 fails. The call connection between the monitoring camera device 10 and the monitoring terminal device 403 is performed.

As shown in FIG. 15, in addition to the configuration of the second embodiment (FIG. 6), the alarm relay device 20 has an alarm condition information receiving unit similar to the device of the third embodiment (FIG. 10). The call control unit 24 further includes a notification availability determination unit 241 that determines availability of call connection.

The configuration of the monitoring terminal device 40 is the same as that of the third embodiment (FIG. 11).

The registration of the alarm condition by the supervisor is performed in the sequence of FIG. 26 as described in the third embodiment. In the alarm condition registration data (FIG. 34) at that time, the call connection order of the backup monitoring terminal when the above-mentioned monitoring terminal has failed in call connection is described as detailed alarm condition information, and the alarm relay device It is stored in 20 information recording media 22. Further, as described in the first embodiment, the registration of the location information of the supervisor is performed in the sequence of FIG. 20, and the location information is stored in the information recording medium 22 of the alarm relay device 20.

On the other hand, alarm information output from the monitoring camera device 10 is transmitted to the alarm information management unit 23 of the alarm relay device 20 in the sequence of FIG. 21 as described in the first embodiment (2), Then, the alarm information management unit ²³ confirms the alarm conditions and the location information stored in the information recording medium 22.

As described in the second embodiment, the relay apparatus 20 establishes a call connection between the monitoring camera apparatus 10 and the monitoring terminal apparatus 402 whose location is registered in the sequence of FIG. If the monitoring terminal device 402 does not respond even after the fixed time elapses, as shown in FIG. 25, it is determined that the call connection to the notification terminal unit 402 of the call control unit 24 1 can not be made. And cancels the call connection request to the monitoring terminal device 402 to the monitoring camera device 10 via the video transmission request unit 27 (9), and notifies the alarm information management unit 23 of the connection failure notification with the monitoring terminal device 402 ( Ten) . The alarm information management unit 23 re-searches the alarm condition from the information recording medium 22 (11), and acquires the alarm condition of the search result (12). As the alarm condition, since the monitoring terminal 403 and the monitoring terminal 401 are designated first and second, respectively, as the call connection destination when the monitoring terminal device 402 can not connect the call, the alarm information management is performed. The unit 23 instructs the call control unit 24 to automatically connect the monitoring terminal device 403 and the monitoring camera device 10.

In this way, the call connection between the monitoring camera device 10 and the monitoring terminal device 403 is performed in the sequence of FIG. 24, and when this call connection is successful, the monitoring audio and video are directly transmitted from the monitoring camera device 10 to the monitoring terminal device 403. Ru. If this call connection also fails, the call connection between the monitoring camera device 10 and the monitoring terminal device 401 is performed according to the alarm condition. As described above, in this monitoring system, even when a call connection with a registered monitoring terminal can not be performed, a call with another monitoring terminal set in the alarm condition is performed. Connection can be made. Therefore, even if the supervisor forgets the location registration operation or the automatic processing of the location registration is not good for some reason, the supervisor can use the monitoring terminal device at the monitoring point when the alarm occurs. Audio and video can be monitored.

Also, in the alarm condition, it is possible to designate monitoring terminal devices other than the monitoring terminal devices 401, 402, and 403 of the monitoring person as the call connection destination of the subsequent rank. For example, if the monitoring terminal of the concerned person is designated as one of the preliminary monitoring terminal devices, when the supervisor can not go out to any of the monitoring terminal devices 401, 402, 403, The surveillance terminal device can receive an image of the surveillance camera 10 at the time of an alarm occurrence. Also, if the video storage device 80 for storing video is designated as a preliminary visual terminal device, the video of the monitoring camera device 10 can be displayed when the monitoring person can not reach any of the monitoring terminal devices 401, 402 and 403. Are automatically stored in the video storage device 80.

Sixth Embodiment

In a sixth embodiment of the present invention, a surveillance system in which addition and movement of surveillance camera devices are easy will be described.

Figure 16 schematically shows this monitoring system. The supervisor registers the location on the alarm relay device 20 (1). On the other hand, when the monitoring camera device 110 is added (2), the position information and the like of the monitoring camera device 110 are registered in the alarm relay device 20 (3). The alarm relay device 20 notifies the supervisor of the fact that the surveillance camera device 110 has been added as one of the surveillance camera devices for providing the surveillance information to the surveillance person through the surveillance terminal device 40 whose location is registered (4).

In this system, for example, when the monitoring camera device 110 is installed at a place where the monitoring period is limited, such as a bargain special installation site, the power camera information of the installed monitoring camera device 110 is manually (or automatically If you register with), you are in alarm The relay device ²⁰ notifies the supervisor of the addition of the surveillance camera device 110, and the surveillance camera device 110 is incorporated into one of the surveillance camera devices that provide alarm information to the surveillance person. Therefore, when the surveillance camera device is added or the position of the surveillance camera device is changed, the surveillance camera device can be easily linked to the observer.

The alarm relay device 20 of this monitoring system includes a monitoring device management unit 30 that receives a connection notification sent from the monitoring camera device 10 as shown in FIG. The connection notification includes information on the installation position of the monitoring camera device 10 and the alarm type, and the information is stored and registered in the information recording medium 22. The other configuration is the same as the first embodiment (FIG. 2) or the second embodiment (FIG. 6).

Further, as shown in FIG. 18, the surveillance camera device 10 is provided with an installation location for registering the surveillance camera device 10 and an alarm type, and an alarm type registration unit 17. The other configurations are the same as the first embodiment (FIG. 3) or the second embodiment (FIG. 7).

Registration of the installation position of the monitoring camera device 10 and the alarm type is performed in the sequence of FIG. The surveillance camera device 10 transmits a SIP message of surveillance camera connection notification (corresponding to a REGISTER message of SIP) to the alarm relay device 20 (1), and the surveillance device management unit 30 of the alarm relay device 20 Receive and communicate to alarm information management unit 23 (2). The alarm information management unit ²³ searches for alarm condition information from the information recording medium 22 and adds camera information (3), receives a search response for alarm condition information to which camera information has been added, and adds camera information. Complete (4). After that, the alarm relay device 20 returns a success response to the REG I STER message to the monitoring camera device 10.

FIG. 35 shows the data structure of the SIP message that corresponds to the SIP REG I STER message that performs monitoring camera connection notification. Here is the SIP header In the following, “Location registration request” indicating message type, “address of alarm relay device (registration destination)” of destination, “address of surveillance camera device (registration)” of transmission source, “location registration effective period” and "Registration identification number" is described, and terminal capability and alarm information that can be transmitted are described as "monitoring camera device information" in the SIP message body.

The information of the registered surveillance camera device 10 is transmitted to the surveillance terminal device 40 whose location is registered in the same procedure as FIG.

As described above, in this surveillance system, event information when a surveillance camera device is added or transferred is treated like alarm information, and the location of the alarm relay device is registered with the event information. Automatically connect to the surveillance terminal and notify of addition / relocation information of surveillance camera.

Therefore, in this surveillance system, it is possible to easily move or add surveillance camera devices.

Further, as described in the first embodiment, the supervisor may perform location registration in advance in the alarm relay device 20. In this case, since the alarm relay device 20 notifies the location registered at the location that the surveillance camera device 110 is added, the surveillance person can receive the surveillance camera addition information at any place. Figure 16 schematically shows this feature.

In addition, as described in the fifth embodiment, when an alarm condition designates a backup monitoring terminal when a call connection with the monitoring terminal can not be made, the alarm relay device is not activated. Addition of surveillance camera device Attempts to establish a call connection with the registered surveillance terminal device to notify relocation information, and if it fails, calls with the surveillance terminal device in the order specified in the alarm conditions. The connection is sequentially attempted, and the monitoring person who has succeeded in call connection is notified of addition / relocation information of the monitoring camera device to the supervisor. Figure 19 schematically shows this situation. This application is based on Japanese Patent Application No. 2000-288776 filed on Oct. 1, 1 B, the contents of which are incorporated herein by reference. Industrial applicability>

As apparent from the above description, in the monitoring system, relay device and relay method of the present invention, since the location of the supervisor is registered in the alarm relay device, the alarm relay device is a monitoring terminal in the location of the supervisor. This makes it possible to send alarm information to the device, which has the effect of enabling the supervisor to immediately grasp the occurrence of an alarm.

Further, in the surveillance system, the relay device and the relay method of the present invention, the relay device receives a request for viewing the video of the surveillance camera from the surveillance terminal device or receives an alarm from the surveillance camera device, When transmitting the video to the monitoring terminal, the relay device receives the monitoring video from the monitoring camera and the video to the monitoring terminal in order to call the monitoring camera and the monitoring terminal and directly transmit and receive the monitoring video. Since transmission is not performed, the load on the relay device can be reduced, and the delay in video transmission from the monitoring camera to the monitoring terminal can be reduced by not passing through the relay device, and changes in the monitoring video can be grasped at an early stage. It has the effect of being able to

Further, in the monitoring system, relay device, and relay method of the present invention, when a plurality of persons monitor using a plurality of monitoring camera devices, the relay device sets the alarm condition in the relay device. It is possible to transmit only the alarm information required by the monitor to the monitor, and it has the effect that the monitor can receive the necessary alarm information without receiving unnecessary alarms.

Further, in the monitoring system, relay device and relay method of the present invention, since the monitoring terminal device registers the capability of the monitoring terminal device in the relay device, the monitoring terminal of the supervisor's location can monitor the alarm information terminal of the monitoring terminal. The effect of being able to receive in a way that matches the ability There is.

Also, when the monitoring terminal receives an alarm from the relay device, if the alarm can not be received by the monitoring terminal due to some kind of traffic, whether to retransmit the alarm to the monitoring terminal or send it to another monitoring terminal Since the registration is performed in advance, the alarm can be notified to the supervisor or any person even if any trouble occurs in the monitoring terminal device.

Further, in the surveillance system, relay device and relay method of the present invention, when the surveillance camera device is added to the system or when the surveillance camera device is transferred, position information of the surveillance camera device is transmitted via the relay device. It is possible to transmit to the monitoring terminal device and automatically register the position information of the monitoring camera device to which the relay device and the monitoring terminal device have been added or transferred. Therefore, it is not necessary for the surveillance system administrator to go to the installation site of the relay device and surveillance terminal device and set the information on addition or relocation of surveillance camera devices, so that surveillance camera devices should be added and relocated to the surveillance system. It has the effect of being easy to do.

Further, in the monitoring system, relay device and relay method of the present invention, the surveillance camera device is added to the system, or the monitoring power camera device is transferred because the surveillance person's location is registered in the alarm relay device. This has the effect of being able to grasp the addition or relocation information of surveillance camera devices wherever the observer is.

Further, in the monitoring system, relay device and relay method of the present invention, when the monitoring terminal device can not receive the addition of the monitoring camera device by the monitoring terminal device due to some kind of trouble, the addition of the monitoring camera device retransfer information to the monitoring terminal device The alarm can be notified to the supervisor or any person even if any trouble occurs in the monitoring terminal device because it is registered in advance whether to send to another monitoring terminal or to another monitoring terminal device. .

Claims

The scope of the claims

1. A predetermined monitoring terminal device capable of displaying an image captured by the monitoring device when an alarm is received from the monitoring device that transmits an image and an alarm indicating that shooting of the monitoring area and detection of an abnormality have been performed; A relay device that controls call connection with a monitoring device via a network,

Storage means for storing registration information regarding each monitoring terminal device;

An information registration processing unit that rewrites the registration information based on the message when a message instructing change of a call connection destination with the monitoring device is received;

Alarm information receiving means for receiving an alarm sent from the monitoring device; and, when the alarm information receiving means receives an alarm, a call connection is made with the monitoring device by referring to registration information stored in the storage means. Alarm information managing means for determining the monitoring terminal device 1;

Call connection processing means for performing processing for call connection between the first monitoring terminal device and the monitoring device;

A relay apparatus characterized by comprising:

2. The relay apparatus according to claim 1, wherein

The call connection processing means

Video transmission request means for requesting the monitoring device to transmit video data to the first predetermined monitoring terminal device;

Call control command transmission means for transmitting a call control command for establishing a call connection with the monitoring device to the first monitoring terminal device;

Call control means for instructing the video transmission request means and the call control command transmission means to perform predetermined operations, respectively; Relay device characterized by having

3. The relay apparatus according to claim 1, wherein

The storage means stores an alarm condition that designates a spare monitoring terminal device for performing a call connection when a call connection between the monitoring device and the first monitoring terminal device can not be established;

When a response can not be obtained from the first monitoring terminal apparatus to the call control command transmitted by the call control command transmission means:

The alarm information management means refers to the alarm condition stored in the storage means, and determines a second monitoring terminal device to be call-connected to the monitoring device.

The call connection processing means cancels the call connection between the second monitoring terminal device and the monitoring device, and then performs processing for call connection between the second monitoring terminal device and the monitoring device. A relay apparatus characterized by

4. The relay apparatus according to claim 2, wherein

The video transmission request means requests transmission cancellation of video data to the first monitoring terminal device, and then transmits video data to the second predetermined monitoring device terminal to the monitoring device. Request The relay apparatus, wherein the call control command transmission unit transmits a call control command for establishing a call connection with the monitoring device to the second monitoring terminal device.

5. The relay apparatus according to claim 1, wherein

The registration information stored in the storage means includes information on the capability of each monitoring terminal device;

The relay apparatus, wherein the call connection processing means transmits information on the capability of the first monitoring terminal apparatus to the monitoring apparatus.

6. The relay apparatus according to claim 5, wherein

The information related to the capability of the monitoring terminal device is information related to the display capability of a video.

7. The relay device according to claim 1, wherein

The registration information stored in the storage unit includes information on the capability of the monitoring device, and the call connection processing unit transmits information on a video captured by the monitoring terminal to the first monitoring terminal device. Relay device.

8. The relay apparatus according to claim 1, wherein

When you receive information about the newly installed or relocated monitoring equipment,

The alarm information management means records the information in the storage means,

The relay apparatus, wherein the call connection processing means transmits information on the newly installed or relocated monitoring device to the predetermined monitoring terminal device.

9. Alarm and video data showing that shooting of surveillance area and detection of abnormality A monitoring device for transmitting data, a plurality of monitoring terminal devices capable of displaying an image captured by the monitoring device, and an alarm when received from the monitoring device, the monitoring device and the plurality of monitoring terminal devices A monitoring system comprising: a relay device that controls to make a call connection with one of them via a network;

The relay device is

Storage means for storing registration information on the plurality of monitoring terminal devices, and information registration processing means for rewriting the registration information based on the message when a message instructing change of a call connection destination with the monitoring device is received. When,

Alarm information receiving means for receiving an alarm sent from the monitoring device; and, when the alarm information receiving means receives an alarm, referring to the registration information stored in the storage means, monitoring for call connection with the monitoring device A macro information management means for determining a terminal device;

Call connection processing means for performing processing for call connection between the monitoring terminal device determined by the parameter information management means and the monitoring device;

The monitoring system characterized by having.