JPH0287893A - Remote supervisory controller - Google Patents

Abstract

PURPOSE:To eliminate an unnecessary abnormality processing even if a temporary processing delay caused by an overload of a CPU is generated and to execute a smooth control by constituting the title controller so that when a selection non-response is detected, it is not dealt with as abnormality but a selection is executed again automatically. CONSTITUTION:In a remote supervisory controller consisting of a control place 1 and a place to be controlled 2, a selection non-response deciding part for deciding whether a selected control object 3 is selected already and in the course of non-response or not is provided on a CPU 11 of the control place 1. When the selection object is selected and it is not completed at the time of deciding a completion of the selection, whether the control object 3 is selected already and in the course of non-response or not is decided in the selection non-response deciding part. When said object is in the course of non-response, a control abnormality generation processing is executed, but when it is not in the course of non-response, it is stored temporarily. In such a way, even if a temporary a queuing time is generated, a control abnormality processing is not executed.

Description

[Detailed description of the invention] A. Industrial application field The present invention relates to a remote monitoring and control device.

B1 Summary of the Invention The present invention provides a remote monitoring and control device that includes a selective refractory motion determination section in the central processing section, and when a selective refractory motion is detected during selection of a controlled object, it does not immediately treat it as abnormal but selects it again. By doing so, unnecessary abnormality displays can be eliminated.

C1 Prior Art] A remote centralized monitoring and control system using a computer is generally comprised of a remote monitoring function, a remote control function, a scheduled and occasional measurement function, an information transmission/reception function, and a plurality of driving assistance functions. In other words, since Figure 2 shows the schematic configuration of the remote centralized monitoring and control system, l is the control center,
Reference numeral 2 denotes a controlled station, which is connected to the control station 1 by a transmission line.

Furthermore, a group of controlled objects 3 is connected to this controlled station 2 .

The control center 1 has a control section 11 for executing each of the functions described above, and a central processing section (hereinafter referred to as CPU) is used as the control section 11. Figure 3 is C
This figure shows the processing flow of the PU. This CPU executes the tasks of each function in a time-sharing manner. For example, when executing a control function, the control target is selected in step Sl, and the selection is made in step S2. It is determined whether or not the process has been completed. If the selection is completed, a human/off operation command is issued to the controlled object in step S3, but if the selection is not completed in S2, an abnormality is detected in the controlled object in step S4. Occurrence processing is performed.

D0 Problem to be solved by the invention When each function uses the CPU to execute each task in a time-sharing manner, the request to execute each function to the CPU may be made at different timings, such as every hour on the hour or when an accident occurs. is concentrated.

Especially when an accident occurs, recovery operations are being performed, so the monitoring function and the control function are intertwined. In such a situation, the CPU becomes overloaded, causing a temporary waiting state for execution, and even though the device to be controlled is actually responding, the processing of response signals for control is delayed. , there is a risk that control abnormalities such as selection refractory behavior and operation refractory behavior may occur in step S2 of FIG.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a control device in which control abnormality processing is not executed even if a temporary waiting time occurs.

91 Means for Solving the Problems The present invention provides a remote monitoring and control device consisting of a control center and a controlled station, in which the CPU of the control center is informed that a selected control object has already been selected and is in a non-responsive state. A selective refractory motion determining section is provided to determine whether or not there is a selective refractory motion.

F When an action selection object is selected and has not been completed at the time of selection completion determination, the selection refractory movement determination section determines whether or not the control object has already been selected and is in refractory movement. If it is in a non-responsive state, a control abnormality occurrence process is performed, but if it is in a non-responsive state, it is temporarily stored.

G. Example An embodiment of the present invention will be described in detail below with reference to FIG.

Note that the configuration diagram of the remote monitoring and control device is the same as that in FIG. 2, so illustration thereof is omitted. That is, in the present invention, C
A selective refractory motion determining section 12 is provided in the PUII.

With the above configuration, when a control target is selected in step Sll, it is determined in step S12 whether the selection is completed. If the selection has been completed, the device is turned on/off in step S13.

On the other hand, if a selection refractory behavior occurs in S12 after selecting the device to be controlled, it is checked in step S14 whether or not a selection refractory behavior has already occurred in response to the selection of the device. As a result, if it has already been selected and becomes unresponsive, it is considered that an actual abnormality has occurred (occurrence of selected unresponsive action) because it is continuously unresponsive, and step S
Control abnormality occurrence processing is performed at I5. Also, S
In step S14, if the selection refractory movement has not occurred, the selection refractory movement is stored in step S16 in order to perform the selection process again. This storage makes it possible to monitor apparent selection refractoriness caused by CPU processing delays (wait time).

H3 Effects of the Invention Generally, device control is performed by two actions: selection of the control target and human/off operation of the device, but in the present invention,
In the selection of the control target, when a selection refractory movement is detected, it is not immediately treated as an abnormality, but is automatically selected, so there is no temporary processing delay due to CPU overload, unlike in the past. Even if a problem occurs, unnecessary abnormality processing is eliminated and smooth control becomes possible.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing one embodiment of the present invention, and FIG.
The figure is a block diagram of a remote monitoring and control device, and FIG. 3 is a flowchart for explaining conventional processing. l... Control station, 2... Controlled station, 3... Controlled object group, I1... Central processing unit, I2... Selective refractory motion determination unit. 2 people outside Figure 1

Claims (1)

[Claims] (1) In a control center that has a central processing unit and a controlled station that controls a controlled object by exchanging signals with the control center via a transmission line, selection determination of the controlled object Selective unresponsive behavior determination for determining whether the controlled object is already in selective unresponsive behavior when there is no selection in , executing control abnormality generation processing when unresponsive, and memorizing the selective unresponsive behavior when non-responsive. A remote monitoring and control device characterized in that a section is provided in the control center.