JPH1145116A - Monitor and control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitor and control system with which a trigger fault can be surely outputted even when multiple faults occur concerning a system for simultaneously displaying fault information on a CRT screen. SOLUTION: The attribute information of whether it can be the trigger fault to be propagated over the other faults or not, the attribute information of whether the fault can be a propagated fault with the existence of the trigger fault to be a fault factor or not and attribute information specifying the fault in case of trigger fault existence are added to fault information, and the trigger fault or propagated fault is discriminated from the attribute information together with an independent fault (S2). Timer registration is performed for standby for the occurrence of the other fault while respectively limiting time for the trigger fault or propagated fault (S5) and after the time-up of all timers, the grouping of the trigger fault and the propagated fault from the attribute information is performed (S7). Then, only the trigger fault is displayed on the screen (S8) and concerning the propagated fault, a message is displayed/printed (S9).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for monitoring and controlling various types of plant equipment, and more particularly to a method for outputting failure information when multiple failures occur.

[0002]

2. Description of the Related Art For example, a monitoring and control system for plant equipment is shown in FIG. 2, which shows a monitoring and control system for a substation.
Are connected by the man-machine LAN, and these and the process L
The local side connected by the AN 4 performs monitoring control of the circuit breaker 6 and the like by the power receiving controller 5 and monitoring and control of the device 8 and the like by the operation controller 7.

In such a system, when a failure occurs in a plant device or the like, the occurrence of a failure in the device to be monitored is reported to the operator as a failure information output on the monitoring room side in the following procedure.

(1) Alarm sounding (2) Symbol display on monitor panel etc. (3) Symbol display on CRT graphic screen (with automatic display) (4) Failure message output on CRT message screen (5) Message Failure message output on printer

[0005]

In the conventional fault information output method, the fault status can be accurately determined in the case of a single fault. However, when multiple faults occur, fault information is generated all at once. Since the detection timing depends on the processing timing on the local side, the trigger failure that has caused the true failure and the ripple failure that has occurred due to this failure are displayed on the CRT display or the like in a mixed manner.
This makes it difficult to determine the true cause of the failure.

[0006] The deviation of the detection timing of each information is caused, for example, by the trip of the circuit breaker CB1 in FIG.
It is assumed that the devices A1 to AN to which power has been supplied have stopped, and their measured values B1 to BN have also become abnormal. At this time, the failure information of the CB1, A1 to AN, and B1 to BN is transmitted and output to the CRT display and the monitoring panel in a random order.

In addition, the automatic display of the failure screen and the display and printing of the failure message are processed from the information that has arrived, regardless of the attribute of the failure. It will be printed.

An object of the present invention is to provide a supervisory control system capable of reliably outputting a trigger fault even when multiple faults occur.

[0009]

According to the present invention, in order to solve the above-mentioned problem, failure attribute information such as whether or not the failure becomes a trigger failure is added to the failure information, and the failure information is randomly arrived based on the attribute information. It is capable of recognizing and outputting a failure state having a failure as a trigger from the failure information to be performed, and is characterized by the following configuration.

A monitoring system comprising a failure information output means for detecting a failure of equipment of various plant facilities and transmitting the same to the monitoring room as failure information, outputting the failure information on the monitoring room side, and notifying an operator of the failure condition. In the control system, the failure information is attribute information on whether or not the failure can be a trigger failure that propagates to another failure, and attribute information on whether or not the failure can be a ripple failure in which a trigger failure that causes a failure exists, and Means for adding and transmitting attribute information specifying the failure if the trigger failure exists, and processing for outputting failure information as an independent failure when the failure information received from the attribute information is not the trigger failure or the spread failure Means, and in the case of the trigger failure or the ripple failure, register a timer to give a time limit to each other and wait for the occurrence of another failure, and after all timers have timed out. Serial performs grouping trigger malfunction spillover failure from the attribute information, the screen displays only trigger failure, spillover failure is characterized by comprising processing means for performing a message display and printing.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present embodiment, the following attribute information is added to failure information.

(1) Attribute information as to whether or not a failure can be a trigger failure that affects other failures. For example, the circuit breaker C shown in FIG.
Attribute information indicating a trigger failure is added to the failure of B1.

(2) Attribute information as to whether or not the failure can be a ripple failure in which a trigger failure causing a failure exists, and attribute information such as a number for specifying the failure if a trigger failure exists. For example, the failure of the device A1 shown in FIG. 2 includes attribute information indicating that the circuit breaker CB1 exists as a trigger failure, so that attribute information indicating that the failure can be a ripple failure and attribute information that can specify the circuit breaker CB1 are added. This specification may be plural.

In the two types of fault information, depending on the fault detection target, the fault may be a trigger fault and a ripple fault.

FIG. 1 is a flow chart of a failure information output process in this embodiment. When a failure occurs, the failure information to which the attribute information is added is transmitted to the monitoring panel side in FIG. 2 (S1).
The monitoring panel determines whether or not the fault is an independent fault from the attribute information of the received fault information (S2). That is, from the attribute information, a failure that cannot be a trigger failure and that cannot be a ripple failure is determined as an independent failure (single failure), and other failures are determined as a trigger failure or a ripple failure.

If it is determined in this determination process (S2) that the fault is an independent fault, a fault screen is automatically displayed (S3), and a message is displayed and printed, similarly to the conventional single fault.
The operator is urged to perform a single process (S4).

When it is determined in the determination process (S2) that a trigger failure or a ripple failure has occurred, a timer is registered for each failure information (S5). In this timer registration, a timer having a fixed time limit or a predetermined time limit for each fault information is assigned to each fault information, and the time is counted from the time of receiving the fault information to prepare for the generation of other fault information (multiple fault occurrence). Secure waiting time.

It waits until all the timers registered for each fault information have timed out (S6), and after this time-out, groups the trigger fault and the spread fault from the attribute information of the fault information (S7). This grouping is hierarchized with the trigger failure at the top, and a plurality of groups may be formed.

An automatic display process for displaying only the trigger failure information on the screen among the grouped failure information is performed (S
8). As a result, even when multiple faults including a large number of contagion faults occur, only the trigger fault is displayed on the screen, making it easy to recognize the cause of the fault.

Finally, for displaying and printing a message for the occurrence of multiple failures, an output is obtained for each group with the trigger failure at the top (S9). This output edits the message with the trigger failure at the top as follows.

〇 month〇 day 〇 hour〇 minute〇 second CB1 trip occurrence 〇 month〇 day〇 hour〇 minute〇 second A1 emergency stop occurrence 〇 month〇 day〇 hour〇 minute〇 second B3 〇 day 〇 hour 〇 minute 〇 second A1 Control power cut off 〇 month 〇 day 〇 hour 〇 minute 〇 second CB1 ON With such an output, the cause of failure (trigger failure) can be easily displayed from the display and printing of the message for the ripple failure Can be recognized.

Therefore, according to the present embodiment, when multiple failures occur, even if there is a deviation in the detection timing of each information, only the trigger failure is recognized and displayed on the screen. Each failure information is hierarchically output as a vertex and output, and the operator can reliably recognize the trigger failure from the screen display when multiple failures occur, and can deal with it reliably. Further, regarding the ripple failure, the cause of the failure can be easily recognized from the display and printing of the message.

[0023]

As described above, according to the present invention, failure attribute information such as whether or not the failure becomes a trigger failure is added to the failure information. Since the fault status with the fault at the top can be recognized and output, even if multiple faults occur and the detection timing of each information is shifted, only the trigger fault can be reliably output and the true fault cause can be recognized. This has the effect of ensuring ease.

[Brief description of the drawings]

FIG. 1 is a flow chart of a failure information output process according to an embodiment of the present invention.

FIG. 2 is an example of a monitoring control system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Monitor panel 2 ... CRT display 3 ... Printer 4 ... LAN 5 ... Power receiving controller 7 ... Operation controller 8 ... Equipment

Claims (1)

[Claims] 1. A failure information output means for detecting a failure of equipment of various plant facilities and transmitting the same to a monitoring room as failure information, outputting the failure information on the monitoring room side, and notifying an operator of the failure status. In the monitoring control system, the failure information is attribute information on whether or not the failure can be a trigger failure that propagates to another failure, and attribute information on whether or not the failure can be a ripple failure in which a trigger failure that causes the failure exists. Means for adding and transmitting attribute information specifying the trigger failure, if any, and outputting failure information as an independent failure when the failure information received from the attribute information is not the trigger failure or the spread failure Processing means to perform, when the trigger failure or the spread failure, register a timer to give a time limit to each and wait for the occurrence of another failure,
Monitoring control characterized by comprising processing means for performing a grouping of a trigger failure and a ripple failure from the attribute information after all timers have timed up, displaying only the trigger failure on a screen, and displaying and printing a message of the ripple failure. system.