JPS6365511A - Monitor control computer system - Google Patents

Abstract

PURPOSE:To easily examine the cause or process of the generation of an event, by recording a generated event, and also a monitored video, and a computer message related to the generated event in a state of superimposing on a recording medium by a recorder. CONSTITUTION:While a computer system is operated, a bit of monitor video information, and the computer message are inputted from an industrial television camera 12 to a buffer frame memory 31 through a video switcher 24, and an analog/digital converter 25. At the buffer frame memory 31, the bit of monitor video information, and the computer message are stored by every frame unit transiently, and also, old records recorded on the buffer frame memory are erased in order from the oldest record. Also, the signals of the bit of video information, and the computer message recorded by every frame unit on the buffer frame memory 31, are recorded on the recording medium in the state of superimposing by a recorder 32 through the digital/analog converter 25.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a supervisory control computer system that allows a display device to display supervisory video and computer messages regarding supervisory control information for equipment such as a plant.

[Conventional technology]

FIG. 3 is a block connection diagram showing a conventional supervisory control computer system. In the figure, 1 is a central processing unit, 2 is a process bus 9 via a monitor interface 3
4 is an illumination panel connected to a process bus 9 via an input/output crab unit 5; 6 is a process input/output crab unit connected to the process bus 9.

8 is the process bus 9 via the transmission interface card.
It is a transmission line for input/output signals connected to the

In addition, a video monitoring system for equipment, etc. is provided independently of the monitoring control computer system, and this system includes a plurality of industrial television cameras 12 for monitoring equipment for each process.
and a camera input signal switch 11 that selects the output of these industrial television cameras 12 and inputs it to a plurality of industrial television monitors 10.

Next, the operation will be explained.

Input information from systems and equipment of various plants or output information for controlling various plants is exchanged by the central processing unit 1 with the process input/output unit 6 and transmission line 8 through the transmission interface card 7. . At this time, a plant status display signal is input from the input/output crab unit 5 to the large illumination panel 4, and
Graphics are displayed on the television monitor 2 via the monitor interface 3. Note that various control signals can also be entered manually from the keyboard on the television monitor 2 side. On the other hand, images of equipment, etc. are obtained from an industrial television camera 12 in a video monitoring system that is separate from the computer information monitoring control computer system, and the output is sent to any industrial television monitor 10 by a switch 11. I am trying to input it selectively and display it.

[Problem that the invention seeks to solve]

Conventional supervisory control computer systems are configured as described above, so in order to quickly discover abnormalities in systems and equipment, it is necessary to constantly monitor display devices.
There were problems with the detailed surveillance images and other information on the screen, such as the inability to later analyze in detail the failure status of the equipment mentioned above and the causes and circumstances of various incidents that occurred.

This invention was made in order to solve the above-mentioned problems. When a predetermined event occurs in the process of equipment, etc., the monitoring video of the equipment, etc. and computer messages related to this event are recorded and saved. The purpose of this invention is to obtain a supervisory control computer system that allows the causes and circumstances of the above-mentioned events to be easily analyzed later.

[Means for solving problems]

The supervisory control computer system according to the present invention has a central processing unit for monitoring and controlling systems and equipment, and a supervisory control computer having a display device for displaying the supervisory control information, and is an industrial computer for monitoring the equipment. A television camera is installed, computer messages related to events that occur in the processes of the above equipment are stored in a message memory, and when the above event occurs, the monitoring video of the above equipment, etc. and computer messages related to this event are recorded by a recording device. It is structured as follows.

[Effect]

A recording device according to the present invention records surveillance video and computer messages related to an event on a recording medium, for example, in a superimposed state, and
By reproducing this as necessary and reproducing it on a display device, it is possible to facilitate investigation of the cause and circumstances of the occurrence of the event.

〔Example〕

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

In FIG. 1, numeral 21 denotes a large display device that also serves as an illumination panel, which is driven by a display interface controller 22 that serves as a display controller. The display interface controller 22 receives a video control signal from the process bus 9 and a video signal from the video bus 23, and further applies specific processing to the video signal and inputs it to the display device 21. It looks like this. 24 is a video switcher.

Video input signals input from a plurality of industrial video cameras 12 are switched and selected according to instructions from the central processing unit 1.

25 is an analog/digital converter that converts the video input signal thus switched and selected into a digital signal; 26 is a CRT controller as a display controller; 27
is a television monitor as a display device that displays natural color images.

Reference numeral 31 denotes a buffer frame memory which takes in a video input signal from the video bus 23 and stores it in units of frames in accordance with a command given from the central processing unit 1 through the process bus 9, and has a digital-to-analog converter inside. , 32 is a recorder for recording the video input signal as a continuous moving picture image frame by frame, and this recorder 32 and the buffer frame memory 31 constitute a recording device. Note that the video input signal is input to each controller 22, 26 through the video bus 23. 33 is a message memory that stores computer messages regarding events occurring in the processes of the above equipment;
The central processing unit 1 receives this computer message and the above-mentioned surveillance video.

It operates to output and display information related to the content of the event on the display device 2I and the television monitor 27.

Next, the operation will be explained.

First, input information and control output information from various plants are exchanged by the central processing unit 1 with the process input/output unit 6 and the transmission line 8, and the display device 21
The supervisory control information is graphically displayed on the television monitor 27. In this respect, the operation is substantially the same as the conventional operation.

On the other hand, a plurality of monitoring video signals of equipment etc. captured by an industrial television camera 12 are switched and selected one by one according to instructions from the central processing unit 1, and further converted into digital signals by an analog-to-digital converter 25. and transmitted to the video bus 23. Furthermore, when a predetermined event (failure, etc.) obtained as supervisory control information for equipment such as a plant occurs, a computer message regarding this event is output from the message memory 33 and transmitted to the video bus 23.

In this way, the surveillance video information and computer messages transmitted to the video bus 23 are input to the CRT controller 26 and the display interface controller 22 together with the surveillance control information, and each controller 22, 26, according to instructions from the central processing unit 1, Surveillance video information, which is a video signal, and a computer message are input to the television monitor 27 and display device 21 and displayed.

On the other hand, while the computer system is in operation, surveillance video information and the computer message are input from the industrial television camera 12 to the buffer frame memory 31 via the video switcher 24 and the analog-to-digital converter 25.

The buffer frame memory 31 temporarily stores the monitoring video information and computer messages frame by frame, and erases the information already recorded in the buffer frame memory 3 in order from the oldest one. Furthermore, the monitoring video information and computer message signals recorded in the buffer frame memory 31 in frame units are as follows:
The recorder 3 passes through the digital-to-analog converter 25.
2, the data is continuously recorded on the recording medium in a superimposed state. The video recorded here is a moving image that is continuously recorded on a magnetic tape, etc. at a collection of frame images, for example, 60 frames per second, and is recorded for a predetermined amount of time according to the designated storage area of the central processing unit. Ru.

FIG. 2 is a flowchart showing the processing flow of each of the blocks from the occurrence of the event to recording by the recorder 32. According to this, it is determined whether an event has been detected (Step IS), and if there is, the content of the event is determined (Step 2S), a computer message related to the determined event is read out from the message memory 33, and the display device 21 reads out a computer message related to the determined event. and a television monitor (step 3S), and monitor video of equipment related to the above event is similarly displayed (step 4S). Next, these computer messages and surveillance images are superimposed together with the contents of the event as surveillance control information (step 5s), and are temporarily captured into the buffer frame memory 31 (step 6S). In this case, it is determined whether or not it is necessary to record at each time set by the program (Step 7S), and if it is necessary, the time interval is counted (Step 8s), Step 3S, Step 48 and subsequent steps are performed. repeat. If there is no need for timer recording, the monitoring information and computer message are recorded on the recorder 32, and the process is terminated (step 98).

Although not included in the flowchart, the details of the event and time included in the monitoring control information are included along with the above-mentioned monitoring video and computer messages.

It is also possible to cause the recorder 32 to record in the superimposed state.

The moving images recorded in this manner can optionally be reproduced on the television monitor 27 or display device 21 by the playback operation of the recording device 32, making it easier to analyze the occurrence of events.

In the above embodiment, the recorder 32 was described as one that records moving images, but it may also be a disk memory that records still images, and the same effects as in the above embodiment can be achieved.

〔Effect of the invention〕

As described above, according to the present invention, along with the occurring event,
Since the surveillance video and computer messages related to this event are recorded in a superimposed state on the recording medium by the recording device, by playing back and reproducing them on the display device, it is possible to reproduce the occurrence of the event. This has the effect of making it easier to investigate the cause and circumstances.

[Brief explanation of drawings]

FIG. 1 is a block connection diagram of a supervisory control computer system according to an embodiment of the present invention, FIG. 2 is a flowchart showing the operational status up to recording by the recording device, and FIG.
The figure is a block connection diagram of a conventional supervisory control computer system. 1 is a central processing unit, and 12 is an industrial television camera. 21 is a display device, 27 is a television monitor, 31 is a buffer frame memory, 32 is a recorder, and 33 is a message memory. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Patent applicant Mitsubishi Electric Corporation Figure 1 32: Record Saki

Claims (2)

[Claims] (1) A central processing unit that monitors and controls equipment such as a plant, a supervisory control computer that has a display device that displays the supervisory control information, an industrial television camera that is installed for video monitoring of the equipment, and the equipment A supervisory control computer system comprising: a message memory storing computer messages related to events that occur in the process; and a recording device that records surveillance images of the equipment, etc., and the computer messages related to the event when the event occurs. . (2) The supervisory control computer system according to claim 1, wherein the monitoring video of the equipment and the computer message related to the event are recorded as superimposed video by a recording device.