JPH0786952B2 - Plant monitoring equipment - Google Patents

Description

The present invention relates to a plant monitoring device using a television camera.

[Conventional technology]

In the plant monitoring by the TV camera, in general, a plant operator monitors the screen from the TV camera installed in the plant to judge whether the equipment of the plant is in a state different from the operation at the normal time to detect an abnormality. Occurrence is detected.

FIG. 4 is a block diagram of a conventional plant monitoring device,
In the figure, 1 is a surveillance television camera fixedly installed in the plant to monitor the state of the plant, 2 is a surveillance television camera operation control device for controlling the operation of the surveillance television camera 1, and 3 is a surveillance television camera operation control device 2. A monitor TV camera operation command device that issues a monitor TV camera operation command to the input device 4, an input device that receives a TV camera operation request from an operator and attaches the request to the monitor TV camera operation command device 3, and a monitor TV camera 5. It is an output device that outputs the image No. 1.

Next, the operation will be described. The surveillance television camera operation control device 2 controls the direction, width, etc. of the field of view of the surveillance television camera 1. The input device 4 receives a request from the operator for setting the field of view of the surveillance television camera 1 to the place and size that the operator wants to monitor. The monitoring television camera operation command device 3 sends to the monitoring television camera operation control device 2 a command from the input device 4 requested by the operator or a control signal for moving the monitoring television camera 1 as planned.

However, the monitoring television camera operation control device 2, the monitoring television camera operation command device 3, and the input device 4 do not necessarily have to be installed. However, when the lever is not installed, the image captured by the surveillance television camera 1 is fixed. The operator monitors the image of the output device 5 and monitors whether or not the state of the plant is normal. Then, if there is a difference from the normal plant state stored by the operator, the possibility of occurrence of abnormality is found, and the corresponding processing is performed.

[Problems to be Solved by the Invention]

Since the conventional plant monitoring device is configured as described above, the normal plant state stored by the operator as described above serves as a reference for abnormality detection.

However, as the functions of the surveillance television camera 1 increase, the number of installations increases, and the surveillance television camera operation control device 2 increases, the number of places where the surveillance television camera 1 can monitor increases. For this reason, when visually confirming a failure detected by any abnormality diagnosis device, it is difficult to quickly select the surveillance television camera 1 and determine the direction by manual judgment. .

Further, in the conventional method of judging which part of the plant the image currently projected by the monitor TV camera 1 corresponds to when an abnormality occurs, by relying on the memory of the operator, the operator's memory increases as the number of monitoring points increases. There is also a large possibility that the memory will become ambiguous, and it will not be possible to quickly deal with the abnormality that has occurred.

Furthermore, it is difficult to identify secular changes such as color and shape over a long period of time in the monitored part of the plant because the degree of change is low, and therefore, even at such minute points, it is difficult for the operator to operate. There is also a problem that it is impossible to quickly identify the abnormal place when an abnormality occurs, depending on the memory of the above.

As an approximation technique, there is a technique disclosed in JP-A-62-174809.

The present invention has been made to solve the above-mentioned problems, and the contents such as the type of plant equipment of the image currently projected by the surveillance television camera are displayed on the output device together with the image, and the failure It is an object of the present invention to obtain a plant monitoring device that can take prompt action when it occurs.

[Means for Solving the Problems]

A plant monitoring device according to the present invention is a device position storage device that stores information indicating the content of a plant device such as the type of a plant device displayed on a monitor TV camera and a direction of the monitor TV camera at that time, and a device position storage device within the device position storage device. It is provided with a retrieval device for retrieving information and outputting and displaying on the second output device information indicating the contents such as the type of plant equipment currently projected by the surveillance television camera.

[Action]

The search device according to the present invention searches the device position storage device for information representing the image currently projected by the surveillance television camera, that is, the information such as the type of the plant device being projected, and obtains it as the second output device. It is displayed separately from the image of the plant equipment, which enables quick processing when an abnormality occurs.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. First
In the figure, 1 to 5 are the same as the conventional device. Reference numeral 6 denotes information indicating the contents such as the type of plant equipment displayed on the television image of the output device 5, and the surveillance television camera 1 at that time.
A device position storage device that stores in advance the shooting direction of the device, and 7 indicates information such as the direction of the monitoring TV camera 1 necessary for displaying the failure occurrence device identified by the abnormality diagnosis device 8 on the monitoring TV camera 1. A retrieval device that retrieves from the storage device 6 and sends an operation command signal to the surveillance television camera operation command device 3, and 8 is an abnormality diagnosis device that takes in data from the plant 9 and identifies the cause of the abnormality.

Next, the operation will be described. The device position storage device 6, in particular, enables the monitoring television camera 1 to immediately shoot the device for which an abnormality has been diagnosed,
Information indicating the contents (type, name, etc.) of each device of the plant and information indicating the imaging direction of the surveillance television camera 1 for each device are stored in advance. In this case, as the information for determining the shooting direction, that is, the direction of the screen, for example,
There is an angle from the reference direction. The angle of the screen to be recorded may be, for example, the angle when the plant-installed equipment to be imaged is brought to the center of the screen.

When a plurality of surveillance video cameras are installed, the number of the surveillance TV camera used and the like are also stored together with the information on the direction of the cameras described above.

Therefore, when the search device 7 receives the identification of the abnormality diagnosis of a certain plant device forming the plant 9 by the abnormality diagnosis device 8, the failure generation device and the failure generation device are displayed in order to copy the failure generation device to the surveillance television camera 1. Information about the shooting direction of the surveillance television camera 1 for the device is stored in the device position storage device 6
The search TV camera operation command device 3 is instructed based on the search result. As a result, the surveillance television camera operation control device 2 is oriented so that the surveillance television camera 1 can photograph the failure-causing device.
Control the direction of and shoot. Therefore, the output device 5
An image including a failed device is displayed on the display, and the operator can quickly recognize the abnormal device.

Next, another embodiment of the present invention will be described. In FIG. 2, 1 to 7 are the same as those constituting the embodiment described with reference to FIG. Reference numeral 10 is a second output device that outputs information about the plant equipment output by the search device 7.

Next, the operation will be described.

The equipment position storage device 6 is stored in advance in the surveillance television camera 1 when the plant equipment is photographed by the surveillance television camera 1.
Is recorded for all plant equipment that can be photographed from the surveillance television camera 1. As the information for determining the direction of the screen, the angle from the reference direction or the like may be used as in the above embodiment. Also, the angle of the stored screen is
For example, the angle when the plant-installed equipment to be photographed is brought to the center of the screen can be considered. Here, the image recording of one surveillance television camera 1 has been described, but when a plurality of surveillance video cameras are installed, the number of the surveillance television camera used and the information of the camera direction described above are also recorded. To do.

During operation of the plant, the search device 7 determines the type, name, etc. of the plant equipment displayed in the image captured by the surveillance TV camera installed in an arbitrary direction in the equipment position storage device 6
It is extracted based on the type, name, etc. of the plant equipment recorded in (1) and information on the shooting direction of the surveillance television camera 1 of the equipment. Here, the direction in which the surveillance TV camera 1 is facing is
It is calculated from the monitor TV camera operation command signal output from the monitor TV camera operation command device 3. Since the surveillance TV camera has a range of up, down, left and right, all plant equipment included in the range is searched and the search result is presented to the operator by the output device 10. Therefore, the operator
In the unlikely event that a device failure occurs and is notified, it becomes possible to quickly recognize the failed device and take corrective action. Note that the search result may be output while being superposed on the monitoring video of the output device 5.

Next, another embodiment of the present invention will be described. In addition,
As shown in FIG. 3 in the block diagram of this embodiment, only the image storage device 61 is different from the other embodiments described above.

Next, the operation will be described.

The image storage device 61 stores in advance the television image of the surveillance television camera 1 when the plant equipment is normal. Here, it is best to record all the images in the range that can be taken from the fixed surveillance television camera 1. However, if all images in an arbitrary direction are recorded, the number of images to be recorded becomes infinite, so it is impossible to record. Therefore, the direction in which the surveillance television camera 1 is imaged is fixed to several, and is set to an amount that can be recorded by a normal image storage device such as an optical disk. However, the image is recorded so as to include the entire range that the actual surveillance television camera 1 can capture, and information of the direction of the image is added to the image and recorded. The information that determines the screen direction includes, for example, an angle from the reference direction. Here, the image recording of one monitor TV color has been described, but even when a plurality of monitor TV cameras are installed, the image may be recorded for each camera by the method described above.

Next, the search device 7 operates as follows. That is, the search device 7 is a device that synthesizes an image in the same direction as the image captured by the surveillance television camera 1 set in an arbitrary direction from the image stored in the image storage device 61 in advance. Then,
The range captured by the surveillance television camera 1 in any direction extends up to a maximum of four of the images previously stored in the image storage device 61. From the monitor TV camera operation command signal output from the monitor TV camera operation command device 3, the monitor TV camera 1
Is calculated, the four screens including the image projected by the surveillance television camera 1 at that time are determined from the information of the direction of the surveillance television camera 1 stored together with the respective screens, and the image storage device Search for those images from 61. Then, the images in the range currently projected by the surveillance television camera 1 are extracted from the retrieved four screens, combined into one image, and output to the output device 10. In this case, the process of retrieving these four screens from the image storage device 61 based on the surveillance TV camera operation command signal does not have to be performed each time the surveillance TV camera operation command changes, and the four screens retrieved in the previous step If it is included in the range, only the process of combining the screens from the four screens need be executed.

〔The invention's effect〕

As described above, according to the present invention, based on the direction of the surveillance television camera, the device position storage device is searched for information designating the plant device included in the image currently projected on the output device, and the search result is obtained. Since the search device for outputting and displaying on the second output device is provided, it is possible to promptly take countermeasures when an abnormality is found by the surveillance camera.
Further, even if the abnormality of the plant equipment cannot be detected by the detector or the like, or the detection of the abnormality is delayed by the detector or the like, according to the present invention, the plant equipment is always used as the output device. Since it can be monitored by the second output device and the second output device, there is an effect that reliable monitoring can be performed with high safety.

[Brief description of drawings]

1 is a block diagram of a plant monitoring apparatus according to an embodiment of the present invention, FIG. 2 is a block diagram of a plant monitoring apparatus according to another embodiment of the present invention, and FIG. 3 is a plant according to another embodiment of the present invention. FIG. 4 is a block diagram of a monitoring device, and FIG. 4 is a block diagram of a conventional plant monitoring device. 1 is a surveillance television camera, 2 is a surveillance television camera operation control device, 3 is a surveillance television camera operation command device, 4 is an input device, 5 is an output device, 6 is a device position storage device, 61 is an image storage device, and 7 is a search. Device, 8 is an abnormality diagnosis device, 9 is a plant, and 10 is an output device. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A surveillance television camera for monitoring the condition of a plant, a surveillance television camera operation control device for controlling the operation of the surveillance television camera, and an operation command relating to the surveillance television camera to the surveillance television camera operation control device. And a monitoring television camera operation command device, an input device that receives a television camera operation request and sends the request to the monitoring television camera operation command device, an output device that outputs an image of the monitoring television camera, and the plant. Based on the direction of the surveillance television camera, a device position storage device that stores information specifying the plant equipment to be photographed and the shooting direction of the surveillance television camera with respect to the plant equipment,
A plant equipped with a search device that searches the device position storage device for information designating the plant device included in the image currently projected on the output device, and outputs the search result to the second output device for display. Monitoring equipment.