JPS6350725A - Process data display apparatus - Google Patents

Abstract

PURPOSE:To accurately grasp a plant state and to accurately operate a plant, by limiting data providing amount to a range not exceeding the data processing capacity of a human being. CONSTITUTION:The process signal from a plant 11 is transmitted to a data acquisition device 13 to be inputted to a data processor 15. Further, the process signal is transmitted to a control panel 18 from the processor 13 and indicated on a meter or processed by a control value judge device 17 to be transmitted to the control panel 18 and sounds an alarm. The process signal transmitted to the processor 15 is processed by a data processing part 19 and a display update frequency altering function part 110 and subsequently transmitted to a CRT display device 112 and a sound notice device 113 as printing information to be presented to an operator. Next, the operator determines machinery to be operated based on the printing information given and inputs an operation demand signal via the control panel 18. Subsequently, the inputted operation demand signal is transmitted to each operation point of the plant through a transmission line 114.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a plant process data display device for controlling the operation of a nuclear power plant or other plants.

(Prior art) Process data display devices for plants such as nuclear power plants process various process signals obtained during plant operation and display them to operators via meters, recorders, and other instruments, alarm devices, etc. This is what we present. Operators operate the plant from operating terminals such as switches based on the presented information.

Early process data display devices used only various instruments and W reports to provide information to operators. Such information for operation control is usually very large in both type and number. For example, the information necessary to operate a boiling water reactor includes the following:

・Water level: nuclear water level, suppression boule, etc. ・Pressure crab reactor pressure, etc. ・Flow rate: main steam flow rate, feed water flow rate, etc. ・Radiation dose: process radiation dose, etc. ・Neutron flux level: neutron level in the core, etc. ・Rotation speed: turbine, These information, such as pumps, take in values from sensors provided at each point of the atomic couplant, are basically converted into electrical signals, and then transmitted to a process data display device via a transmission line. The process data display device processes this data and presents it to the instrument in a human-visible format, and also checks whether the rated limit value is exceeded and lights up the annunciator (alarm device). In process data equipment based on such instruments and annunciators, the number of instruments installed on the equipment is extremely large.
As the number of devices increases, various instruments must be checked during operation.

In particular, there was a risk that operation would become difficult if some abnormality occurred in the plant.

From this point of view, new process data display devices not only present various process data obtained from plants through instruments, but also display them on a CRT after processing them with a computer.
Information has come to be presented in a form that is easy for humans to understand through display devices and the like. By doing so, the operator can intensively monitor the plant status using the CRT display device, and the operating performance has been greatly improved compared to conventional operation control devices. Furthermore, such a process data display device also uses an audio notification device, so that when an important event occurs during plant operation, the audio notification device notifies the user to that effect. Such a process data display device has a basic configuration as shown in FIG. 2 as an example. A process number 48 obtained from a plant 21 such as a nuclear power plant is transmitted to a data acquisition device 23 via a transmission line 22 and then transmitted to a data processing device (computer) 25 via a transmission line 24. These process signals are also transmitted from the data acquisition device 23 to another transmission line 26.
It is directly transmitted to the control panel 28 via the controller and presented to the meter, or processed by the limit value determination device 27 and transmitted to the control panel 28 and presented as an alarm. On the other hand, the process signal transmitted to the data processing device 25 is subjected to various processing, and then sent to the CRT installed in the control panel 28 via the transmission line 29 as plant data that changes at time V. Display device 210 or audio notification device 21
1 and presented to the operator. Further, an operation request signal inputted from the control panel 28 is transmitted to the plant 21 via a transmission line 212.

Furthermore, some recent process data display devices have a function of determining plant operation strategies in response to data abnormalities and guiding operation items at specific times. Diagnosis results and operation guides obtained by these functions are presented to the operator from the CRT display device and audio notification device at any time.

In such conventional process data display devices, the obtained information is presented at any time. The CRT display device 210 presents various information indicating the status of the plant, diagnostic results, and operation guides one after another, and is usually updated at regular intervals so that the latest information is always presented. For example 1
The contents of the screen are updated every second, and numerical values are updated, messages are added, and changes are made.

(Problems to be solved by the invention) When an abnormality occurs in a plant, the amount of information to be presented to operators increases rapidly, and CRT display devices,
New information is presented from time to time via the audio announcement device. However, there is a limit to the amount of information that humans can process at one time, and when an abnormality occurs, operators are unable to process all of the large amount of data presented to them, leading to situations where operators end up in a panic. If too much information is provided, a person's processing ability will deteriorate, and even if an event is possible to return to normal, it may not be possible to perform an operation, which could lead to an abnormality and a serious accident.

The present invention was made in consideration of the above situation, and its purpose is to limit the amount of information provided to a range that does not exceed the human information processing ability, and to more accurately understand the plant situation. An object of the present invention is to provide a process data display device that enables plant operation.

[Structure of the invention]

(Means for Solving the Problems) The present invention is intended to achieve the above object, and includes a data processing device that sequentially processes process data of a plant, and displays information on the eight forces of this data processing device. In a process data display device comprising a display section, the data processing device has a display update frequency changing function that automatically changes the update frequency of display contents according to an increase or decrease in the amount of information displayed on the display section. This is a characteristic feature.

(Function) According to the process data display device of the present invention, when the amount of information to be displayed on the display increases due to an abnormality in the plant, etc., the update frequency of one display content can be automatically reduced. This prevents operators from being unable to respond and reducing efficiency due to information overload.

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

FIG. 1 shows an embodiment of the present invention. In the figure, a process signal obtained from a plant 11 such as a nuclear power plant is transmitted to a data acquisition device 13 via a transmission line 12, and then transmitted to a data processing device (computer) 15 via a transmission line 14. Further, the hard process No. 48 is transmitted from the data acquisition device [3] to the control panel 18 via another transmission line 16 and presented to the meter.

It is processed by the limit value determination device 17, transmitted to the control panel 18, and presented as a warning. On the other hand, data processing device 1
The process signal transmitted to 5 is processed by two functional parts: a data processing part 192 and a display update frequency changing function part 110, and then sent as plant information to a CRT display device installed in the control panel 18 via a transmission line 111. 112 or voice notification device 113, and presented to the operator. The operator determines the equipment to be operated based on the given plant information, and inputs operation request No. g from the control panel 18.

The input operation request signal is transmitted to each operation point of the plant via the transmission line 114. Although the basic processing flow is as described above, the functions of the data processing device 15 in this system will be described next.

The data processing device 15 consists of a data processing section as described above. The data processing unit 19 processes process data obtained from the plant to determine the operating status of the plant.
Performs processing such as diagnosis of plant status, operation guidance, CRT display screen control/update, and voice announcement control. That is, the condition judgment 2 diagnosis and guidance data obtained by processing the process data are displayed in the form of condition display (image) messages on the CRT display device 112. Audio announcement device 113
It is then presented to the operator. CRT display device 112
The contents displayed on the screen are updated by transferring new image data from the data processing device 15 and rewriting one screen after a certain period of time has elapsed.

Such updates keep plant status or other data current. In general, the results of plant condition diagnosis or operation guides are sent in the form of messages on the CRT display device 112 or voice notification device 113.
will be presented to the operator.

The amount of such information varies depending on the plant situation;
Particularly when an abnormality occurs, a large amount of information is generated, and if the screen is updated at the same regular intervals as normal, an extremely large amount of information will be displayed on the screen at once. There is a limit to the amount of information that humans can process at one time, and too much information actually reduces efficiency. Therefore, the display update frequency changing function section 110 has a function of changing the update frequency of the screen display of the CR'r display device 112 depending on the situation. That is, when the amount of information to be given to the operator increases due to an abnormality in the plant, etc., the screen update interval is increased to keep the overall amount of information given to the operating tools from becoming excessive. FIG. 3 shows a graph showing the relationship between the degree of change in the plant and the amount of information presented on the CRT display device 112. The horizontal axis shows the degree of change in the plant, and the vertical axis shows the amount of information. The amount of information provided remains almost constant until the degree of change reaches a certain level (Part A)
As the degree of change increases, the amount of information provided gradually increases with regular screen updates (Part B). When the amount of information provided exceeds a certain level, it exceeds the processing capacity of humans, so the screen update speed is reduced and the increase in the amount of information is reduced (0 copies).

By using such a system, the amount of information provided cannot be increased more than necessary, and a decrease in human efficiency can be prevented.

The above is just one embodiment of the present invention, and there are other board configurations, etc., and the update speed can be reduced not in one step but in multiple steps.

〔Effect of the invention〕

According to the present invention, the amount of information provided is not increased more than necessary, and it is possible to prevent a decrease in human efficiency due to information overload and to improve operational efficiency.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a process data display device according to the present invention, FIG. 2 is a schematic configuration diagram of a conventional process data display device, and FIG. 3 is a diagram showing changes in the amount of information provided according to the present invention. . 11...Plant 13...Data acquisition device 15...Data processing device 18...Control panel 19...
...Data processing section 110...Display update frequency change function section 112...CR7 display device 113...Audio notification device Agent Patent attorney Noriyuki Chika Yudo Hirofumi MitsumataFigure 1Figure 2

Claims (3)

[Claims] (1) In a process data display device consisting of a data processing device that sequentially processes process data of a plant and a display section that displays output information of this data processing device, the data processing device includes information displayed on the display section. 1. A process data display device characterized by having a display update frequency changing function that automatically changes the update frequency of display contents according to an increase or decrease in the amount of the display contents. (2) The process data display device according to claim 1, wherein the display section is a CRT display device. (3) The process data display device according to claim 1, wherein the display section is a voice notification device.