JPS629409A - Plant monitoring method - Google Patents

Abstract

PURPOSE:To recover a faulty equipment with high efficiency by displaying the trouble of an equipment forming a plant on a CRT screen together with a symbol corresponding to the degree of importance of the trouble. CONSTITUTION:When a trouble signal of a plant 1 is supplied to a trouble signal acceptance input means 1, a plant system flow chart display means 4 displays the corresponding plant system chart 7 on a CRT picture display device 2. While a trouble signal priority deciding means 5 decides a trouble having the highest degree of priority among those troubles occurring at this time point and displays a symbole corresponding to said trouble on the chart 7. When an operator hits the symbol with a light pen 3, a recovery guidance screen display means 6 displays a recovery guidance screen for recovery of the relevant trouble. Thus a faulty equipment can be recovered with high efficiency.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention displays symbols on a CRT screen for failures in equipment constituting a plant, and displays necessary recovery operation guidance screens in response to operator operations. This relates to a plant monitoring method.

[Technical background of the invention and its problems] Conventional plant failure monitoring involves, for example, when a failure occurs in a certain piece of equipment within a plant, a system diagram of the plant that includes the relevant equipment is displayed on a CRT screen to identify the relevant equipment. Some methods are used, such as blinking the failure symbol of the equipment that is causing the failure, simultaneously issuing a warning, and outputting a message indicating the cause of the failure to notify the operator.

The operator determines the nature of the failure from this information and
Perform recovery operations for the corresponding failure.

However, this method protects the systems and target equipment within the plant, and in the event of multiple failures in which one failure triggers another, the operator can determine which equipment failure is the most important for the plant. It is not possible to determine whether there is a problem, it takes time to recover from equipment failure, and there is a risk that a fatal accident may occur for the plant.

[Purpose of the Invention] The present invention displays equipment failures in a plant in a plant system diagram on a CRT screen with symbols corresponding to the severity of the failure, and also displays failure recovery operation guidance screens. It is an object of the present invention to provide a plant monitoring method that displays information on a CRT screen in order of importance, thereby allowing efficient recovery operations for failed equipment within the plant.

[Summary of the invention] The present invention provides CRT
In a plant monitoring method using an image display device, priority is set in advance based on the importance of failure of each component, and when a failure occurs in the equipment, the monitoring screen corresponding to the failure is automatically displayed as a symbol. At the same time, the priority of the failure is searched and the corresponding priority is added and displayed in sequence. Furthermore, by hitting the failure symbol, the corresponding recovery guidance screen is displayed in sequence, allowing the operator to efficiently recover when a failure occurs. It is designed to allow work to be done.

[Embodiment of the Invention] An embodiment of the present invention is shown in FIG. FIG. 1 shows the hardware configuration of the present invention, in which 2 is a CRT screen display device, 3 is a CRT screen display device;
is pointing device 3 (hereinafter referred to as Light Ben)
, 11 is a central processing unit (hereinafter referred to as CPU), 12
1 is a key human power device, 13 is a bus input/output device, and 14 is a monitored plant.

FIG. 2 is a functional block diagram of the present invention, in which a failure signal in the plant is inputted by the failure signal reception input means 1, and the plant system diagram display means 4 is used to input the failure signal in the plant having the light vent 3.
The relevant plant system diagram 7 is displayed on the RT image display device 2, and the fault signal priority determining means 5 determines the fault with the highest priority among the currently occurring faults in the plant, and the fault is The corresponding symbol is displayed on the plant system diagram 7. Note that this symbol is a symbol that can be determined to be clearly different from other low-priority failure symbols.

By hitting this symbol using the light ben 3, the operator can cause the corresponding recovery guidance screen display means 6 to display a recovery guidance screen 8 for recovering the failure on the CRT screen.

That is, as shown in FIG. 3, when equipment failures A, B, and C occur in the monitored plant 14, these failures are displayed in the plant system diagram together with symbols of priority.

Priorities 1.2.3 are set in advance in correspondence to failures A, B, and C, and are registered in the priority storage information file.

Assuming that equipment failures A, B, and C in the plant occur at the same time, a failure signal is sent from the monitored plant 14 to the CPU
11, the CP IJ 11 displays the corresponding plant system diagram on the CRT screen display device, and further displays the fault symbol corresponding to the fault signal on the plant system diagram.

Figure 4 is an example of displaying fault symbols; here,
Fault A has the highest priority, followed by B.

The order is C. At this time, the color of the failure symbol is made different only for the highest priority failure A than for other low priority failures.

This allows the operator to determine which fault has the highest priority based on the fault symbols of different colors.

When the operator determines the failure symbol with the highest priority and hits this failure symbol using the light ben 3, the recovery guidance screen with the highest priority is displayed on the CRT screen as shown in FIG.

In this example, there is a one-to-one correspondence between the priority of the failure signal A and the recovery guidance.

When the operator performs the required recovery operation according to the display on the recovery guidance screen, failure A in FIG. 4 is restored, and failure B, which has the next highest priority, becomes the failure with the highest priority at that time.

When failure B becomes the highest priority, the color of the failure symbol also changes from the color of the next priority failure to the color of the highest priority failure symbol.

Then, when the operator hits the newly changed symbol of the next failure B using the light pen 3, a recovery guidance screen corresponding to failure B is displayed on the CRT screen.

The above operation will be explained in more detail using the flowchart of FIG. 5. First, in box 1, all fault signals in the plant are cleared.

Next, in box 2, the plant system diagram in which the failure has occurred is displayed on the CRT screen. For example, when three failures occur as shown in FIG. 3, a failure symbol as shown in FIG. 4 is displayed.

Next, in box 3, the priority of the failure symbol is checked using the priority storage information file, and in box 4, the color of the failure symbol determined to be R priority is set to be a different color from other failure symbols of the next priority.

Next, in box 5, the operator specifies a different fault symbol by hitting it with the light pen 3.

Light Ben 3 converts failure symbol designation information into CP
When given to the LJ 11, the recovery guidance display information file is used in box 6 to display a recovery guidance screen corresponding to the highest priority failure symbol specified by the operator on the CRT screen.

The operator performs the recovery operation according to the instructions of this recovery guidance to recover from the failure.

Further, in box 7, the priority is sequentially searched until all faults are recovered, and the colors of the fault symbols on the system diagram are sequentially changed, so that the operator can always judge the fault with the highest priority.

[Effect of Shouting] As explained above, according to the present invention, when many failures occur almost simultaneously in a plant during monitoring using a plant monitoring device, settings can be made in advance in response to the causes of the failures. By memorizing and using the priorities based on the importance of the failures, the operator can always determine which failure has the highest priority using the failure symbol on the CRT screen. By doing so, it is possible to display a recovery guidance screen with the desired order within the plant, eliminating the need for operators to prioritize failure signals, clarifying failure recovery procedures, and improving maintainability of the entire plant. be able to.

[Brief explanation of drawings]

FIG. 1 is an equipment configuration diagram showing an embodiment of the plant monitoring system according to the present invention, FIG. 2 is a functional configuration diagram of the present invention, and FIG.
4 and 4 are respectively display screen views in one embodiment of the present invention, and FIG. 5 is a flowchart showing the calculation operation of the central processing unit in FIG. 1. 2...CRTiM image display device 3...Light pen 11...Central processing unit 12...Key human power device 13...Process input/output device 14...Monitored plant (7317) agent Patent attorney Kensuke Chika (and 1 others)
Figure 1 Figure 4 Figure 5

Claims (1)

[Claims] In a plant monitoring method that uses a CRT image display device to monitor failures in equipment that makes up the plant, priorities are set in advance based on the importance of failures in each component, and when equipment failure occurs, The monitoring screen corresponding to the failure is automatically displayed as a symbol, and the priority of the failure is searched and the corresponding priority is sequentially added and displayed.Furthermore, by hitting the failure symbol, the corresponding recovery guidance screen is displayed in sequence. A plant monitoring method characterized by: