JP3555393B2 - Monitoring and control system - Google Patents

Description

このような出力により、波及故障についてはメッセージの表示・印字からその故障原因（トリガ故障）を容易に認識できる。
【００２２】
従って、本実施形態によれば、多重故障発生時には、各情報の検出タイミングにずれがある場合にもトリガ故障のみを認識して画面表示し、メッセージの表示・印字にはトリガ故障を頂点として各故障情報を階層化して出力し、操作員は多重故障発生に画面表示からトリガ故障を確実に認識でき、その確実な対応ができることになる。また、波及故障についてはメッセージの表示・印字からその故障原因を容易に認識できる。
【００２３】
【発明の効果】
以上のとおり、本発明によれば、故障情報にその故障がトリガ故障となるか否か等の故障属性情報を付加し、この属性情報によりランダムに到着する故障情報からトリガとなる故障を頂点とした故障状況を認識・出力できるようにしたため、多重故障が発生し各情報の検出タイミングにずれがある場合にもトリガ故障のみを確実に出力でき、真の故障原因の認識を確実容易にする効果がある。
【図面の簡単な説明】
【図１】本発明の実施形態を示す故障情報出力処理フロー。
【図２】監視制御システム例。
【符号の説明】
１…監視盤
２…ＣＲＴディスプレイ
３…プリンタ
４…ＬＡＮ
５…受電コントローラ
７…運転コントローラ
８…機器[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a monitoring and control system for various plant facilities, and more particularly to a method for outputting failure information when multiple failures occur.
[0002]
[Prior art]
As shown in FIG. 2, for example, a monitoring and control system for plant equipment is shown in FIG. 2. As shown in FIG. 2, a monitoring panel 1, a CRT display 2, a printer 3 and the like are connected by a man-machine LAN on the monitoring room side. The local side, which is connected by, performs monitoring and 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.
[0003]
In such a system, when a failure occurs in a plant device or the like, the occurrence of a failure in the monitored device is notified to the operator as the failure information output on the monitoring room side in the following procedure.
[0004]
(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) Failure message output by message printer
[Problems to be solved by the invention]
The conventional failure information output method can accurately determine the failure status in the case of a single failure, but when multiple failures occur, failure information is generated all at once, and the detection timing of each information is processed on the local side Because it depends on the timing, the trigger failure that caused the true failure and the ripple failure that occurred due to this failure are displayed on the CRT display or the like in a mixed manner. Making it difficult.
[0006]
The deviation of the detection timing of each information is caused, for example, by the trip of the circuit breaker CB1 in FIG. 2, power reception is stopped, the devices A1 to AN to which power is supplied from there are stopped, and the measured values B1 to BN become abnormal. Suppose. 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.
[0007]
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, and the display and printing are performed in a different order from the occurrence and the propagation condition of the failure in the plant equipment. Would.
[0008]
An object of the present invention is to provide a monitoring control system capable of reliably outputting a trigger failure even when multiple failures occur.
[0009]
[Means for Solving the Problems]
In order to solve the above-described problem, the present invention adds failure attribute information such as whether or not the failure becomes a trigger failure to the failure information, and uses this attribute information to determine a trigger failure from failure information that arrives at random. It is capable of recognizing and outputting a fault condition at the top, and is characterized by the following configuration.
[0010]
In a monitoring control system equipped with a failure information output means for detecting a failure of equipment of various plant facilities, transmitting the failure information to the monitoring room, outputting the failure information on the monitoring room side, and notifying an operator of the failure status. ,
The failure information is attribute information on whether or not the failure can be a trigger failure that propagates to another failure, 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 transmitting, if present, attribute information specifying the failure;
Processing means 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,
In the case of the trigger failure or the propagation failure, a timer is provided to give a time limit to each other and wait for the occurrence of another failure. And a processing means for displaying / printing a message of a ripple failure.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present embodiment, the following attribute information is added to the failure information.
[0012]
(1) Attribute information as to whether or not a failure can be a trigger failure that affects other failures. For example, attribute information indicating a trigger failure is added to the failure of the circuit breaker CB1 in FIG.
[0013]
(2) Attribute information as to whether or not a failure that can be a ripple failure in which a trigger failure that causes a failure exists, and attribute information such as a number specifying the failure if a trigger failure exists. For example, the failure of the device A1 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.
[0014]
In the above two types of failure information, depending on the failure detection target, the failure may be a trigger failure and a ripple failure.
[0015]
FIG. 1 is a flow chart of a failure information output process according to the present 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 the failure is an independent failure based on the attribute information of the received failure 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.
[0016]
If it is determined in this determination process (S2) that the failure is an independent failure, an automatic display process of a failure screen is performed (S3), a message is displayed and printed, and the operator is urged to perform a single process, similarly to the conventional single failure. (S4).
[0017]
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 period or a predetermined time period for each failure information is assigned to each failure information, and the time is counted from the time of reception of the failure information to prepare for the generation of other failure information (multiple failure occurrence). Secure waiting time.
[0018]
It waits until all the timers registered for each fault information have timed out (S6), and after this time-up, 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.
[0019]
An automatic display process of displaying only the trigger failure information on the screen among the grouped failure information is performed (S8). As a result, even when multiple faults including a large number of spillover faults occur, only the trigger fault is displayed on the screen, making it easy to recognize the cause of the fault.
[0020]
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.
[0021]

With such an output, the cause of the failure (trigger failure) can be easily recognized from the display and printing of the message for the ripple failure.
[0022]
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. The failure information is layered and output, and the operator can reliably recognize the trigger failure from the screen display when multiple failures occur, and can take an appropriate response. In addition, the cause of the failure can be easily recognized from the display and printing of the message.
[0023]
【The invention's effect】
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, and a failure that triggers from failure information that arrives at random by this attribute information is defined as the top. Can be recognized and output, and even when multiple faults occur and there is a deviation in the detection timing of each information, only the trigger fault can be output reliably, making it easier to recognize the true cause of the fault. There is.
[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 ... device

Claims (1)

In a monitoring control system equipped with a failure information output means for detecting a failure of equipment of various plant facilities, transmitting the failure information to the monitoring room, outputting the failure information on the monitoring room side, and notifying an operator of the failure status. ,
The failure information is attribute information on whether or not the failure can be a trigger failure that propagates to another failure, 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 transmitting, if present, attribute information specifying the failure;
Processing means 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,
In the case of the trigger failure or the propagation failure, a timer is provided to give a time limit to each other and wait for the occurrence of another failure. And a processing means for displaying only a message on the screen and displaying / printing a message of the spillover failure.

Images