JPS6118281A - Abnormality supervisory device - Google Patents

Abstract

PURPOSE:To attain ease of works such as signal processing, storage and collation by providing a signal processor and a receiver between a television camera and a supervisory monitor so as to simplify a video signal from the television camera and patterning the changed component. CONSTITUTION:A video signal obtained from the television camera 1 is inputted to a signal processor X. A collation detecting section 7 in the camera 1 compares sequentially a picture signal inputted from the camera 1 with picture information of a storage device 6 and when any change is produced, the changed component is extracted through operation. Then, the changed component is corresponded with a sample pattern of the changed information of the device 6, a pattern closest to the signal is selected and collated with information such as number, shape and kind. As a result, when it is discriminated in abnormality, the information is coded and fed to the receiver Y via a transmission line 3. The device Y collates and compares the received signal by a reception section 8 with the information of a storage device 9, the result is synthesized and displayed on a supervisory monitor 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an abnormality monitoring device using a television camera.

In a conventional abnormality monitoring device of this type, a television camera 1 and a surveillance monitor 2 are connected by a transmission path 3 consisting of one cable and installed one-to-one, as shown in FIG. As the number of cameras 1 increases, the number of cables also increases, and the wiring of the transmission line 3 becomes complicated, and the number of monitoring monitors 2 also increases, making construction time-consuming and requiring a large installation space. The drawback was that it was expensive. Also, since humans monitor, there is a monitoring monitor 2.
The disadvantage is that when the number of devices increases, constant monitoring becomes difficult.

The present invention has been made to eliminate the above-mentioned conventional drawbacks, and by providing a signal processing device and a receiving device between a television camera and a surveillance monitor, the present invention simplifies the video signal from the television camera and also reduces the variation in the video signal. signal processing by patterning.

Provides an anomaly monitoring device that facilitates tasks such as storage and verification, simplifies transmission, facilitates efficient transmission and simplifies transmission lines, and facilitates abnormality determination and mechanization of abnormality monitoring. The purpose is to

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 2 and 3, X is a signal processing device, and A
7. It is composed of a converter 4, a signal processing section 5, a storage device 6, and a verification detection section 7. Y is a receiving device, receiving section 8
and a storage device 9.

In the above configuration, a video signal obtained by the television camera 1 is input to the signal processing device X. In the signal processing device X, the input video signal is converted into a digital signal by the percentage converter 4 and sent to the signal processing section 5. The signal processing unit 5 performs processing such as binarization and line drawing on this digital signal, simplifies it, and then stores it in the storage device 6 as image information.

The storage device 6 further stores and registers several sample patterns as screen change information actually obtained, and assigns numbers to the patterns so that the patterns can be clearly identified. The collation detection unit 7 compares the image signal input from the television camera 1 with the image information stored in the storage device 6 one by one, and when a change occurs, performs arithmetic operations to extract the change and stores it. The change information of the device 6 is correlated with the sample mother turn, and the closest mother turn is selected and compared with information such as its number, shape, type, etc.

As a result, if it is determined that there is an abnormality, the information is encoded again and sent to the transmission path 3. Further, it is also possible to provide this verification detection section 7 with a function of selectively controlling the signals to be sent.

The signal transmitted via the transmission path 3 is received by the receiving device Y. The receiving device Y compares and collates the signal received by the receiving section 8 with the information in the storage device 9 in which image information similar to that in the storage device 6 and sample pattern information is stored and registered, synthesizes the results, and sends the result to the monitoring monitor 2. Take a picture. Further, the receiving section 8 has an alarm function and can also output an alarm by operating a buzzer, rung, etc.

FIG. 4 shows another embodiment of the present invention, in which a plurality of television cameras 1 are connected to one signal processing device
After selecting and extracting only the screens that have changed and subjecting them to the same signal processing as in the previous embodiment, a monitoring signal is sent to the transmission line 3 together with the number information of the television camera 1. In this case, it is necessary that image information and sample pattern information corresponding to each television camera 1 are stored and registered in the storage device 9 of the receiving device Y.

In the above embodiment, the determination of abnormality was performed on the transmitting side, but it may also be performed on the receiving side.

As described above, in the present invention, the video signal from the television camera is simplified and changes in the video signal are patterned, which makes signal processing easy and allows quick response because the signal processing speed is fast. In addition, peripheral devices such as storage devices can be made smaller and more economical. or,
Since signal transmission is also simplified, the transmission path can also be simplified. Furthermore, by patterning the changes in the signal,
It also becomes easier to judge abnormalities. Furthermore, since the signal changes are processed by a machine, monitoring can be mechanized.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of a conventional device, FIGS. 2 and 3 are a configuration diagram and detailed configuration diagram of one embodiment of the device of the present invention, respectively, and FIG. 4 is a partial configuration of another embodiment of the device of the present invention. It is a diagram. 1... TV camera, 2... Surveillance monitor, 3...
Nuclear transport path, X...signal processing device, Y...receiving device. Figure 1 Figure 2 Figure 4

Claims (1)

[Claims] (1) A TV camera and the video signal from the TV camera are digitized and simplified, and when a change occurs in the video, the change is extracted, and this change is used as a pre-stored pattern of change. A signal processing device that compares and collates and outputs the result in code, and a receiving device that receives the output of the signal processing device, compares and collates the output with a pre-stored variation pattern, and synthesizes the results. An abnormality monitoring device comprising: and a monitoring monitor that receives an output from a receiving device and displays an image.