JP2003259343A - Remote image monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote image monitoring system capable of relieving the load on a transmission network in use. <P>SOLUTION: A multiple band compatible network 400 having a high speed band compatible network 401 and a low speed band compatible network 402 is used, low image quality image data of a monitor object 100 encoded by an image encoding distribution apparatus 303 are ordinarily transmitted to a monitor controller 500 via the low speed band compatible network 402, and when any abnormity is detected, high image quality image data of the monitor object 100 encoded by the image encoding distribution apparatus 303 and abnormity notice information are transmitted to the monitor controller 500 via the high speed band compatible network 401. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image remote monitoring system for monitoring an object to be monitored at a remote place by using a network, and more specifically to a multi-band compatible network including a high speed band network and a low speed band network. The present invention relates to a remote image monitoring system.

[0002]

2. Description of the Related Art FIG. 7 shows, for example, Japanese Patent Laid-Open No. 9-20564.
It is a figure which shows the structure of the conventional image remote monitoring apparatus shown by the 1st publication. In the figure, 10 is a device to be monitored, 20
Is a monitoring side device. Further, 30 is ISDN (integrat
ed service digital network) ISDN
Monitored side device 10 and monitoring side device 2 via line network 30
0 is connected. The video camera 14 arranged in the monitoring target device 10 captures an image of the monitoring target, and inputs the captured video signal (image signal) of the monitoring target to the camera connection terminal T4 of the transceiver 11.

A camera connection terminal T of the transmitter / receiver 11
The video signal (image signal) to be monitored input to 4 is
After the data is compressed, it is supplied to a delay circuit (not shown) to perform delay processing. 16 is a video camera 1
4 is a sensor that detects an abnormal state of a video signal (image signal) image of a monitoring target captured. When the sensor 16 detects an abnormality in the video signal (image signal) of the monitoring target captured by the video camera 14, the transceiver 11 makes a call to automatically connect the line to the transceiver 21 of the monitoring side device 20. Connecting. At this time, the transmitter / receiver 11 selectively takes out the compressed video data delayed by the above-mentioned delay circuit (not shown) and starts sending it to the ISDN line network 30.

The transmitter / receiver 21 of the monitoring side device 20 is an ISD.
The compressed video data transmitted via the N-line network 30 is expanded to obtain a video signal at the monitor connection terminal T13. As a result, the image of the monitoring target before the occurrence of the abnormality is displayed on the television monitor 24 of the monitoring side device 20.

[0005]

As described above, in the conventional image remote monitoring apparatus, when an abnormality is detected, how long before the image to be monitored is displayed depends on the delay time of the delay circuit. However, if the delay time is set long, the opportunity to deal with the abnormal state is delayed, and if the delay time is set short, the cause of the abnormality is not reflected. That is, in the conventional example, when an abnormality occurs in the monitoring target,
In order to investigate the cause, the image (image) is delayed and the image data in the state before the abnormal state occurs is displayed. However, if the delay time is not sufficient, it is difficult to analyze the cause of the abnormality. There was a point. Further, since the ISDN line network, which is a high speed band compatible network, is always occupied, there is a problem that the line use efficiency is poor. Further, there is a problem that it is not possible to simultaneously monitor the abnormalities of a plurality of monitoring targets.

The present invention has been made to solve the above problems, and uses a low-speed band compatible network and a high-speed band compatible network separately, and normally, low-quality image data is transmitted via the low-speed band compatible network. While transmitting and displaying in real time from the on-site monitoring device to the supervisory control device, the transmitted low image quality image data is accumulated, and when an abnormality occurs, it is possible to notify the abnormality alarm and simultaneously display past accumulated images. An object of the present invention is to provide an image remote monitoring system that enables high-quality image data to be transmitted in real time via a high-speed band compatible network, and that allows easy investigation and analysis of the cause when an abnormality occurs in a monitoring target. It is another object of the present invention to provide an image remote monitoring system capable of displaying a desired image by an operator's operation. Another object of the present invention is to provide an image remote monitoring system capable of simultaneously monitoring a plurality of monitoring targets according to an operator's instruction.

[0007]

An image remote monitoring system according to the present invention is an image remote monitoring system for transmitting image data of a monitoring target monitored by a site monitoring device to a monitoring control device at a remote place via a network. , Using a multi-band compatible network having a low-speed band compatible network and a high-speed band compatible network as the network,
Normally, the low-quality image data of the monitoring target generated by the on-site monitoring device is transmitted to the monitoring control device via the low speed band compatible network, and when an abnormality of the monitoring target is detected,
The high-quality image data of the monitoring target generated by the on-site monitoring device is transmitted to the monitoring control device via the high-speed band compatible network.

Further, an image remote monitoring system according to the present invention includes a monitoring camera for picking up an image of a monitoring target and outputting an image signal, a monitoring camera with a sensor function having a sensor for detecting an environment around the monitoring target, and a sensor function. Anomaly detection device that detects an abnormal state of the monitoring target from the signal output from the attached monitoring camera and outputs an abnormality notification signal indicating whether there is an abnormality in the monitoring target, the image signal output from the monitoring camera with sensor function is encoded An image encoding / distributing device that processes and outputs low image quality image data and high image quality image data; low image quality image data or high image quality output from the image encoding / distributing device based on an abnormality notification signal output from the abnormality detection device. A site monitoring device including an image data output selection device that selects and outputs any one of image data, and is output from the image data output selection device A low-speed band compatible network for transmitting image quality image data, and a multi-band compatible network having a high speed band compatible network for transmitting high quality image data output from an image data output selection device and an abnormality notification signal output from an abnormality detection device. An image data storage device that accumulates low-quality image data transmitted through a multi-band compatible network and sequentially outputs the accumulated low-quality image data, and high-quality image data transmitted through a multi-band compatible network, An image decoding receiving device that decodes low image quality image data output from the image data storage device, and a decoding output from the image decoding receiving device based on the abnormality notification signal transmitted by the multi-band compatible network Either low quality image data or high quality image data Displays the image data output from the image output control device of the monitor control device and the image output control device that selectively outputs the image output control device and issues an error notification when the error notification signal indicates an error And a display device.

Further, the image remote monitoring system according to the present invention does not display the image to be monitored on the above device when no abnormality is detected.

Further, the image remote monitoring system according to the present invention selects low-quality image data of a desired time stored in the image data storage device based on a command signal from an operation panel operated by an operator, and selects the image data. The monitor control device is provided with an image output selection device to be output from the storage device.

Further, the image output selection device of the image remote monitoring system according to the present invention transmits the image data transmitted by the image data output selection device of the on-site monitoring device based on the command signal from the operation panel operated by the operator. A transmission data selection command to be selected is output.

Also, in the image remote monitoring system according to the present invention, a plurality of the above-mentioned plural monitoring cameras with sensor functions are arranged, and the on-site monitoring device is provided with a plurality of monitoring cameras with corresponding sensor functions. When no abnormality is detected in any of the monitoring targets, the low-quality image data output from multiple image coding and delivering devices is scanned at predetermined intervals and sequentially displayed on the display device. Then, when an abnormality is detected in any of the monitoring targets, the high quality image data of the monitoring target in which the abnormality is detected is displayed on the display device.

Further, the monitor control device of the image remote monitoring system according to the present invention is provided with an abnormal signal receiving device for receiving the abnormal information transmitted from the on-site monitoring device through the multi-band compatible network, and through the image output selecting device. The abnormality information received by the abnormality signal receiving device is displayed on the display device.

Further, in the monitoring control device of the image remote monitoring system according to the present invention, the priority of the abnormal state is set in advance, and when the abnormalities of a plurality of monitoring targets are detected at the same time, the monitoring targets of high priority are monitored. The image is automatically displayed.

Further, the image remote monitoring system according to the present invention comprises a plurality of display devices provided corresponding to a plurality of monitoring targets, and a plurality of operation panels arranged in pairs with the plurality of display devices. The low image quality image data is displayed on the display device corresponding to the monitoring target in which no abnormality is detected, and the high image quality image data is displayed on the display device corresponding to the monitoring target in which the abnormality is detected.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings. In addition, in each drawing, the same reference numeral
Represents the same or equivalent. Embodiment 1. 1 is a block diagram schematically showing a configuration of an image remote monitoring system according to a first embodiment of the present invention. In the figure, 100 is a monitoring target, 101 is an abnormal state, 200 is a monitoring camera with a sensor / microphone (hereinafter referred to as a monitoring camera with a sensor function), 300 is a site monitoring device, 301 is an abnormality detection device, and 302 is image data output. A selection device, 303 is an image encoding / distributing device, 400 is a multi-band compatible network, 401 is a high-speed band compatible network, 402 is a low-speed range compatible network, 500 is a supervisory control device, 501 is an image data storage device, and 502 is image decoding. A receiving device, 503 is an image output control device, and 601 is a display device.

In the on-site monitoring device 300, reference numeral A is a signal input from the monitoring camera 200 with a sensor function to the on-site monitoring device 300, and is an image signal picked up by the monitoring camera, a detection signal detected by the sensor, and a microphone. Is a detection signal (acoustic signal) detected by. Codes B and C are abnormality notification signals, D and F are coded high-quality image data, and E and G are coded low-quality image data. Further, in the supervisory control device 500, codes H, I and J are a low image quality image signal, a high image quality image signal and an abnormal state notification signal respectively inputted via the multi-band compatible network 400, and K is a decoded low signal. The image quality image signal, L is the decoded high quality image data, and M is the output image signal.

As shown in FIG.
It is composed of an abnormality detection device 301, an image data output selection device 302, and an image encoding / delivery device 303. In addition, the monitor control device 500 includes the image data storage device 50.
1, an image decoding reception device 502 and an image output control device 503. The monitoring camera 200 with a sensor function includes a monitoring camera that captures an image of the monitoring target 100 and a sensor (including a microphone) that detects a surrounding environment of the monitoring target 100 (for example, odor, smoke, temperature, humidity, vibration, and noise). I have it. Then, the surveillance camera 200 with a sensor function tells the abnormality detection device 301 and the image coding and distribution device 303 that the image signal of the surveillance target 100 imaged by the surveillance camera and the detection signal detected by the sensor (for example, odor, smoke, Signal A including temperature, humidity, vibration) and a detection signal (for example, abnormal noise) detected by the microphone
Is sent.

When the abnormality detecting device 301 detects the abnormal state 101 of the monitoring target based on the signal A input from the monitoring camera 200 with a sensor function, the abnormal state notification signal B
Is output to the high speed band compatible network 401 of the multi band compatible network 400, and the abnormal state notification signal C
Is input to the image data output selection device 302. The abnormality detection device 301 is used in the monitoring camera 200 with a sensor function.
It also has a function of detecting the abnormal state 101 of the monitoring target 100 from the movement or change of the image signal captured by the surveillance camera.

On the other hand, the image coding / distributing device 303 performs coding processing on the image signal of the monitoring target 100 picked up by the monitoring camera of the monitoring camera with sensor function 200, and outputs high quality image data D and low quality image data E. Output. Further, the image data output selection device 302 selects the encoded low image quality image data E normally sent from the image encoding distribution device 303, and encodes the encoded low image quality image data G.
(I.e., the low-quality image data E) is transmitted to the low speed band compatible network 402 of the multi band compatible network 400. However, when the abnormal state notification signal C indicating the abnormality of the monitoring target is input from the abnormality detection device 301, the image data output selection device 302 is encoded instead of the low image quality image data G that has been transmitted so far. High quality image data F
(That is, the high quality image data D) is transmitted to the high speed band compatible network 401 of the multi band compatible network 400.

The multi-band compatible network 400 has a high-speed band compatible network 401 and a low-speed band compatible network 402, and it is possible to transmit in either a high-speed band or a low-speed band by properly using them. The high-quality image data I sent to the monitor control device 500 via the multi-band compatible network 400 is decoded by the image decoding receiving device 502, and the decoded high-quality image signal L is obtained.
Is sent to the image output control device 503. On the other hand, the supervisory control device 5 via the multi-band compatible network 400
The low-quality image data H sent to 00 is sequentially stored in the image data storage device 501. Then, the low image quality image data stored in the image data storage device 501 is decoded by the image decoding receiving device 502, and is input to the image output control device 503 as the decoded low image quality image data K.

When the image output control device 503 receives an abnormal state notification signal indicating that the monitored object 100 is abnormal via the high speed band network 401, it selects the high quality image signal L as an output signal. Supervisory control device 500
Causes an alarm to be issued upon receipt of the abnormality notification and causes the display device 601 to display the abnormality information, and causes the display device 601 to display a high quality image of the monitoring target 100 in real time. If there is no abnormality, the abnormality detection device 301 of the site monitoring device 300 does not transmit the abnormality notification to the image data output selection device 302, so that the image data is transmitted with low image quality.

This low-quality image data is sent to the monitoring controller 500 via the low-speed band network 402 of the multi-band compatible network 400. Supervisory control device 50
In the case of 0, the image output control device 503 determines “no abnormality notification” according to the setting selected by the operator in advance, and the image decoding receiving device 502 is set via the image data storage device 501.
It is possible to display the low image quality image signal K decoded in step 601 on the display device 601 in real time through the image output control device 503, or to display nothing on the display device 601.

In the image remote monitoring system according to the first embodiment described above, in a normal time (that is, when there is no abnormality), the monitor control device 500 for low-quality image data through the low-speed band network 402 of the multi-band compatible network 400.
High-speed band compatible network 4
It is possible to reduce the load of 01. When an abnormality occurs, the monitoring control device 500 issues an alarm and automatically outputs a high-quality image of the monitoring target 100 to the display device 601 in real time. Therefore, the cause when the abnormality occurs in the monitoring target 100 is investigated.・ Easy analysis can be expected and the load on the operator can be expected to be reduced. Note that the monitoring target 10 is set so that the operator does not have to always look at the screen of the display device 601.
When no abnormality of 0 is detected, the display device 601 may be set not to display an image.

Embodiment 2. FIG. 2 is a block diagram schematically showing the configuration of the image remote monitoring system according to the second embodiment. The image remote monitoring system according to the present embodiment is different from the image remote monitoring system according to the first embodiment shown in FIG. 1 in that the operator can select an image to be displayed on the display device 601.
By providing an image output selection device 504 and the operator selecting an image at any time from the operation panel 602,
The data of the designated time accumulated in the image data accumulating device 501 is transmitted to the image decoding receiving device 502, and the image output selecting device 503 to the display device 601 as an image signal.
It is characterized in that it is configured to be displayed. The other configuration is similar to that of the first embodiment, and therefore the description is omitted.

In the image remote monitoring system according to the first embodiment described above, the image data stored in the image data storage device 501 of the monitor control device 500 is sequentially output to the image decoding device 502 and displayed on the display device 601 in real time. Although it was displayed, in the present embodiment, the monitoring controller 50
When 0 detects an abnormality notification signal, the operator operates the operation panel 6
Since it is possible to output the image data by designating an arbitrary past time (time stamp) stored in the image data storage device 501 by the image output selection device 504 via 02, and display the image data on the display device 601. , Abnormal condition 1
The cause of 01 can be investigated quickly and reliably.
That is, the operator can display the image data of an arbitrary past time on the display device, which is effective, for example, when it is desired to go back and investigate the cause after the abnormality notification.
Further, since the image data is stored in the image data storage device 501, it becomes easy to investigate and confirm whether or not there is really any abnormality in the past when abnormality is not detected.

Embodiment 3. FIG. 3 is a block diagram schematically showing the configuration of the image remote monitoring system according to the third embodiment. The image remote monitoring system according to the present embodiment is the same as the image remote monitoring system according to the second embodiment shown in FIG. 2, and further includes an image output selection device 504 to a multi-band compatible network 400 based on an operation signal from an operation panel 602. Image data output selection device 302
On the other hand, a function of transmitting a transmission data selection command for instructing which data of the input image data is to be output and transmitted is provided.

When the operator operates the operation panel 602, the transmission data selection command P is output from the image output selection device 504. The transmission data selection command P output from the image output selection device 504 is input as the transmission data selection command Q to the image data output selection device 302 of the site monitoring device via the multi-band compatible network.
The image data output selection device 302 selects and outputs image data of either low image quality image data or high image quality image data in response to the input transmission data selection command Q.

With such a configuration, the operator can display the broadband image (that is, high-quality image) data from the operation panel 602 in real time, for example, in a time zone when the load on the high-speed bandwidth network 401 is low. If the image data output selection device 302 outputs a high-quality image data, the output high-quality image data is received by the monitoring control device 500 through the high-speed band compatible network 401. Device 502
The high-quality image signal decoded by
To display. Therefore, it is possible to arbitrarily confirm high-quality image information during a time period when the load of the network being used is relatively small, and fine monitoring work can be performed.

Fourth Embodiment FIG. 4 is a block diagram schematically showing the configuration of the image remote monitoring system according to the fourth embodiment. The image remote monitoring system according to the present embodiment is different from the image remote monitoring system according to the third embodiment shown in FIG. 3 in that a plurality of monitoring cameras with sensor functions are arranged so that a plurality of monitoring targets can be monitored. It is characterized in that a plurality of image coding / distributing devices are provided in the on-site monitoring device in association with the plurality of monitoring cameras with sensor functions. In the figure, 100-1, 100-
2, ... 100-n are monitoring targets, 101-1 and 101
-2, ... 101-n is an abnormal state, 200-1, 20
Reference numerals 0-2, ..., 200-n are surveillance cameras with a sensor function. Also, 303-1, 303-2, ... 303
-N is a surveillance camera with a sensor function 200-1, 200
-2, ..., 200-n are image coding and distribution devices provided respectively.

As shown in the figure, the image remote monitoring system according to the present embodiment has a plurality of monitoring cameras 200-1 and 200 with a sensor function for respectively monitoring a plurality of monitoring targets.
, ..., 200-n are arranged, and the signals output from the plurality of surveillance cameras with sensor functions are the abnormality detection device 301 of the on-site surveillance device 300 and the image coding and delivering devices 303-1 and 303-. 2, ... 303-n. Then, the abnormality detection device 301 includes the monitoring cameras 200-1, 200-2, ...
Abnormal state 101- of the monitoring target from the signal input from
When detecting 1, 101-2, ... 101-n, the abnormality detection device 301 transmits an abnormal state notification signal (including information on which monitoring target is abnormal) from the on-site monitoring device 300 to the multi-band compatible network 400. And the abnormal state notification signal is input to the image data output selection device 302.

On the other hand, the image coding / distributing devices 303-1 and 3-3
03-2, ... 303-n are corresponding monitoring cameras with sensor functions 200-1, 200-2 ,.
The image signal input from 200-n is subjected to encoding processing, and high quality image data and low quality image data are output to the image data output selection device 302. Then, as in the case of the third embodiment, the image data output selection device 302
Is based on a transmission data selection command input from the supervisory control device 500 via the multi-band compatible network 400, and the image coding / delivery devices 303-1, 303-2 ,.
Select and output any of the image data input from 303-n. Further, in the image remote monitoring system according to the present embodiment, the operator operates the operation panel 602 to display the image data of a desired monitoring target on the display device 601, or to monitor a plurality of monitoring targets at a predetermined timing. The image data can be scanned (circulated) and sequentially displayed on the display device 601.

Further, the image data output selection device 302 is
In normal times, the image coding and delivering devices 303-1 and 303-2,
... Any of the encoded low-quality image data transmitted from 303-n is selected and transmitted to the low-speed band compatible network 402 of the multi-band compatible network 400. However, when an abnormal state notification signal indicating an abnormality of any of the monitoring targets is input from the abnormality detection device 301, the image data output selection device 302 replaces the low image quality image data that has been transmitted so far with the code. The converted high-quality image data (that is, high-quality image data D) is used as the high-speed band compatible network 40
Send to 1. The supervisory control device 50 is connected via the high-speed band compatible network 401 of the multi-band compatible network 400.
The high-quality image data I sent to 0 is decoded by the image decoding receiving device 502, and is sent to the image output control device 503 as the decoded high-quality image signal L.

As described above, the image remote monitoring system according to the present embodiment includes a plurality of monitoring cameras for picking up an image of the monitored object 100 and outputting an image signal, and a plurality of sensors for detecting the environment around the monitored object. The monitoring cameras with sensor functions 200-1, 200-2, ..., 200-n are arranged, and the on-site monitoring device 300 is provided with a plurality of image codes provided corresponding to each of the plurality of monitoring cameras with a sensor function. Decentralized distribution devices 303-1, 303-2, ...
303-n. Then, when no abnormality is detected in any of the monitoring targets, the plurality of image coding / distributing devices 303-1, 303-2, ... 303-n output the data and transmit it via the low-speed band compatible network 402. Image decoding receiving apparatus 502
After being decrypted by, the document is scanned at a predetermined interval and sequentially displayed on the display device 601. When an abnormality is detected in any of the monitoring targets, the high-quality image data of the monitoring target in which the abnormality is detected is sent to the high-speed band compatible network 40.
1 is transmitted to the monitor control device 500 through the image decoding device 1, and is decoded by the image decoding receiving device 502 and then displayed on the display device 601. Therefore, it is possible to construct an advanced image remote monitoring system capable of monitoring a large number of monitoring targets in a wide area. Further, when there is no abnormality, the picked-up images of a plurality of monitoring targets are automatically scanned, so that regular operation work does not occur, and the load on the operator can be reduced.

Embodiment 5. FIG. 5 is a block diagram schematically showing the configuration of the image remote monitoring system according to the fifth embodiment. The image remote monitoring system according to the present embodiment is the same as the image remote monitoring system according to the above-described fourth embodiment.
From 00 to the abnormal information transmitted by the high-speed band compatible network 401 of the multi-band compatible network 400 (for example, the address or abnormal state of the camera with the sensor function that is imaging the monitoring target in which the abnormality is detected) The receiving device 505 is provided, and the abnormal information received by the abnormal signal receiving device 505 via the image output selecting device 504 is displayed on the display device 601.

For example, when the monitoring control device 500 is notified of an abnormality from a plurality of monitoring targets 100-1, 100-2, ... 100-n at the same time, the operator displays the display device 60.
Considering the priority based on the abnormality information displayed in 1,
It is possible to select an image of a monitoring target in which an abnormality having a high priority has occurred and display it on the display device 601 to investigate the abnormal situation. In addition, by setting the priority of the abnormal state in advance, even if the abnormalities of multiple monitoring targets are detected at the same time, the images of the monitoring targets with high priority can be automatically displayed even if the operator does not take any action. You may comprise. As described above, in the image remote monitoring system according to the present embodiment, it is possible to immediately display and monitor the image of the monitoring target in the priority order according to the recognition of the operator.

Sixth Embodiment FIG. 6 is a block diagram schematically showing the configuration of the image remote monitoring system according to the sixth embodiment. The image remote monitoring system according to the present embodiment is different from the image remote monitoring system according to the fifth embodiment in that a plurality of monitoring targets 100-1, 100-2, ...
A plurality of display devices 601-provided corresponding to 00-n
1, 601-2, ... 601-n and a plurality of operation panels 602-1, 602 arranged in pairs with the plurality of display devices 601-1, 601-2 ,. −
2, ... 602-n, and the monitoring control device 5
00 indicates a plurality of image decoding receiving devices 502-1, 502-2, ... 50 respectively corresponding to a plurality of display devices.
2-n and a plurality of image output control devices 503-1 and 503-
2, ... 503-n are further provided, and low-quality image data is displayed on the display device corresponding to the monitoring target in which no abnormality is detected, and high-quality image is displayed on the display device corresponding to the monitoring target in which the abnormality is detected. Characterized by displaying data

Further, a plurality of operators display images of arbitrary monitoring targets on the respective display devices 602-1, 602-2 ,.
602-n can be displayed. With such a configuration, even if an abnormality notification signal indicating an abnormality of a plurality of monitoring targets is detected, a plurality of operators operate a plurality of operation panels, a plurality of display devices, by using,
It is possible to simultaneously investigate and analyze a plurality of monitoring targets in which an abnormality has occurred, thereby increasing the reliability of the monitoring system.

[0039]

According to the image remote monitoring system of the present invention, in the image remote monitoring system for transmitting the image data of the monitoring target to be monitored by the on-site monitoring device to the monitoring control device at the remote place via the network, the low speed band is used as the network. Using a multi-band compatible network having a compatible network and a high-speed band compatible network, normally transmits the low-quality image data of the monitoring target generated by the above site monitoring device to the monitoring control device via the low-speed band compatible network, When an abnormality of the monitoring target is detected, the high-quality image data of the monitoring target generated by the on-site monitoring device is transmitted to the monitoring control device via the high-speed band compatible network.
A high-speed band compatible network and a low-speed band compatible network can be used separately. Normally, it is not necessary to use a high-speed band network, and the network can be used efficiently.

The image remote monitoring system according to the present invention comprises:
The monitoring camera with a sensor function equipped with a monitoring camera that captures an image of the monitoring target and outputs an image signal, a sensor that detects the environment around the monitoring target, and the signal output from the monitoring camera with the sensor function can be used to detect abnormal conditions Anomaly detection device that detects and outputs an anomaly notification signal indicating whether there is an anomaly in the monitored object, and outputs low-quality image data and high-quality image data by encoding the image signal output from the surveillance camera with sensor function Image data output selection for selecting and outputting either low image quality image data or high image quality image data output from the image encoding / distributing device based on an abnormality notification signal output from the image encoding / distributing device or abnormality detecting device On-site monitoring device including a device, low-speed band compatible network and image transmitting low image quality image data output from the image data output selection device A high-speed band compatible network that transmits high-quality image data output from a data output selection device and an anomaly notification signal output from an anomaly detection device, and a low-bandwidth network that transmits a multi-band compatible network. An image data storage device that stores high-quality image data and sequentially outputs the stored low-quality image data, high-quality image data transmitted by a multi-band compatible network, and a low-quality image output from the image data storage device Either an image decoding receiving device that decodes data, or decoded low image quality image data or high image quality image data that is output from the image decoding receiving device based on an abnormality notification signal transmitted by a multi-band compatible network. A monitor control device comprising an image output control device for selecting and outputting The image output of the visual control device is provided with a display device for displaying the image data output from the control device and for notifying the abnormality when the abnormality notification signal indicates an abnormality, so that the abnormality of the monitoring target is detected. It is possible to transmit high-quality image data via a high-speed band compatible network, and normally transmit low-quality image data via a low-speed band compatible network, eliminating the need to use a high-speed band network at all times. , You can reduce the load on your network.

Further, since the image remote monitoring system according to the present invention does not display the image of the monitoring target on the display device when no abnormality is detected, the operator does not have to constantly keep watching the monitoring screen, and the operator's load is reduced. Can be reduced.

Further, the image remote monitoring system according to the present invention selects the low quality image data of the desired time stored in the image data storage device based on the command signal from the operation panel operated by the operator, and stores the image data. Since the monitor control device was equipped with an image output selection device to be output from the device,
The operator can display the image data of an arbitrary past time on the display device, and after the abnormality is notified, the cause can be traced back to the past to investigate the cause.

The image output selection device of the image remote monitoring system according to the present invention selects the image data transmitted by the image data output selection device of the on-site monitoring device based on the command signal from the operation panel operated by the operator. Since the transmission data selection command is output, the operator does not need to monitor high-speed multi-bandwidth networks even when there is no abnormality It is possible to arbitrarily check the image information of high image quality, and perform detailed monitoring work.

In the image remote monitoring system according to the present invention, a plurality of monitoring cameras with sensor functions are arranged, and the on-site monitoring device has a plurality of image codes provided corresponding to each of the monitoring cameras with sensor functions. If no abnormalities are detected in any of the monitoring targets, the low-quality image data output from the plurality of image coding distribution devices is scanned at predetermined intervals and sequentially displayed on the display device. When an abnormality is detected in another monitoring target, high-quality image data of the monitoring target in which the abnormality is detected is displayed on the display device, so an advanced image remote monitoring system capable of monitoring a wide area In addition to being able to build, the captured images of multiple monitoring targets are automatically scanned when there is no abnormality, so regular operation work etc. occurs. Not, it is possible to reduce the load of the operator.

Further, the monitoring control device of the image remote monitoring system according to the present invention is provided with an abnormal signal receiving device for receiving the abnormal information transmitted from the on-site monitoring device through the multi-band compatible network, and the abnormal signal is received via the image output selecting device. Since the abnormality information received by the signal receiving device is displayed on the display device, the operator considers the priority of the abnormal state and selects and displays the image of the monitoring target determined to have the abnormality of high priority. be able to.

Further, in the monitoring control device of the image remote monitoring system according to the present invention, the priority of the abnormal state is set in advance, and when the abnormalities of a plurality of monitoring targets are detected at the same time, the image of the monitoring target with a high priority is set. Is automatically displayed, it is possible to automatically display an image of a monitoring target having a high priority even if an abnormality of a plurality of monitoring targets is detected at the same time without an operator's action.

Further, the image remote monitoring system according to the present invention comprises a plurality of display devices provided corresponding to a plurality of monitoring targets, and a plurality of operation panels arranged in pairs with the plurality of display devices. Since low-quality image data is displayed on the display device corresponding to the monitoring target in which no abnormality is detected, and high-quality image data is displayed on the display device corresponding to the monitoring target in which the abnormality is detected, Even if an abnormality notification signal indicating is detected, a plurality of operators operate a plurality of operation panels and use a plurality of display devices, so that it becomes possible to simultaneously investigate and analyze a plurality of monitoring targets in which an abnormality has occurred, The reliability of the surveillance system can be increased.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an image remote monitoring system according to a first embodiment.

FIG. 2 is a block diagram showing a configuration of an image remote monitoring system according to a second embodiment.

FIG. 3 is a block diagram showing a configuration of an image remote monitoring system according to a third embodiment.

FIG. 4 is a block diagram showing a configuration of an image remote monitoring system according to a fourth embodiment.

FIG. 5 is a block diagram showing a configuration of an image remote monitoring system according to a fifth embodiment.

FIG. 6 is a block diagram showing a configuration of an image remote monitoring system according to a sixth embodiment.

FIG. 7 is a block diagram showing an embodiment of an example showing a configuration of a conventional image remote monitoring system.

[Explanation of symbols]

100-100-1 ... 100-n Monitoring object 101, 101-1, ... 101-n Abnormal state 200, 200-1, ... 200-n Monitoring camera with sensor function 300 Field monitoring device 301 Anomaly detection device 302 Image data output selection device 303, 303-1, ... 303-n Image coding / delivery device 400 Multi-band compatible network 401 High speed region compatible network 402 Low speed band compatible network 500 Monitoring and control device 501 Image data storage device 502, 502-1, ... 502-n image decoding receiving apparatus 503, 502-1, ... 502-n image output control apparatus 601, 601-1, ... 601-n display apparatus 504 image output Selection device 602, 602-1, ... 602-n Operation panel 505: Monitoring signal receiving device

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5C022 AA01 AC69                 5C054 AA01 CA04 CH02 DA08 EA01                       EA03 EA05 ED07 GB11 HA19                 5K048 AA04 BA02 BA21 DA03 DC03                       EB08 EB10 EB14 EB15 FA07                       FB04 GB05 HA01 HA02 HA21

Claims (9)

[Claims] 1. An image remote monitoring system for transmitting image data to be monitored by a site monitoring device to a monitoring control device at a remote place via a network, wherein a low speed band compatible network and a high speed band compatible network are provided as the network. Using the multi-band compatible network that has, normally, the low-quality image data of the monitoring target generated by the on-site monitoring device is transmitted to the monitoring control device via the low-speed band supporting network, and the abnormality of the monitoring target is detected. An image remote monitoring system characterized in that, when detected, the high-quality image data of the monitoring target generated by the on-site monitoring device is transmitted to the monitoring control device via the high-speed band compatible network. 2. A monitoring camera with a sensor function, which includes a monitoring camera that images a monitoring target and outputs an image signal and a sensor that detects an environment around the monitoring target, and a signal output from the monitoring camera with the sensor function. An abnormality detection device that detects an abnormal state of the monitoring target and outputs an abnormality notification signal indicating whether there is an abnormality in the monitoring target,
An image encoding / distributing device that encodes an image signal output from the surveillance camera with the sensor function to output low image quality image data and high image quality image data, based on an abnormality notification signal output from the abnormality detecting device. A site monitoring device including an image data output selection device that selects and outputs either low image quality image data or high image quality image data output from the image encoding / delivery device, and output from the image data output selection device. A multi-band having a low speed band compatible network for transmitting low image quality image data and a high speed band compatible network for transmitting high quality image data output from the image data output selection device and an abnormality notification signal output from the abnormality detection device Accumulates low-quality image data transmitted by compatible networks and the above multi-band compatible networks In addition, the image data storage device that sequentially outputs the stored low-quality image data, the high-quality image data transmitted through the multi-band compatible network, and the low-quality image data output from the image data storage device are decoded. Of the decoded low-quality image data or high-quality image data output from the image decoding receiving device based on the abnormality notification signal transmitted by the image decoding receiving device and the multi-band compatible network. While displaying the image data output from the image output control device of the monitoring control device and the monitoring control device including the image output control device that selects and outputs one of them, the abnormality notification signal indicates an abnormality. In some cases, a remote image monitoring system is provided with a display device for reporting an abnormality. 3. The image remote monitoring system according to claim 2, wherein the image of the monitoring target is not displayed on the display device when no abnormality is detected. 4. An image output selection for selecting low-quality image data of a desired time stored in the image data storage device based on a command signal from an operation panel operated by an operator and outputting the image data from the image data storage device. The image remote monitoring system according to claim 2, wherein a device is provided in the monitoring control device. 5. The image output selection device transmits a transmission data selection command for selecting image data to be transmitted by the image data output selection device of the site monitoring device, based on a command signal from an operation panel operated by an operator. The image remote monitoring system according to claim 2, wherein the image remote monitoring system outputs the image. 6. A plurality of the monitoring cameras with a sensor function are arranged, and the on-site monitoring device includes a plurality of image coding / distributing devices provided corresponding to each of the monitoring cameras with a sensor function. If no abnormality is detected in the monitoring target of, the low image quality image data output from the plurality of image coding distribution devices is scanned at a predetermined interval and sequentially displayed on the display device, and any one of the monitoring targets is monitored. 6. When an abnormality is detected, the high-quality image data of the monitoring target in which the abnormality is detected is displayed on the display device, according to any one of claims 2, 4, and 5. Image remote monitoring system. 7. The monitoring control device is provided with an abnormal signal receiving device for receiving abnormal information transmitted from the on-site monitoring device via the multi-band compatible network, and the abnormal signal receiving device is provided via the image output selecting device. The image remote monitoring system according to claim 6, wherein the abnormality information received by the display device is displayed on the display device. 8. The priority of an abnormal state is set in advance, and when the abnormalities of a plurality of monitoring targets are detected at the same time, an image of the monitoring target with a high priority is automatically displayed. 7. The image remote monitoring system according to 7. 9. A monitoring target provided with a plurality of display devices provided corresponding to a plurality of monitoring targets and a plurality of operation panels arranged in pairs with the plurality of display devices, corresponding to a monitoring target in which no abnormality is detected. 8. The image remote monitoring system according to claim 7, wherein low-quality image data is displayed on the display device, and high-quality image data is displayed on the display device corresponding to the monitoring target in which the abnormality is detected.