JPH01208997A - Trouble indication method for supervision control system - Google Patents

Abstract

PURPOSE:To make a trouble indication without discontinuing a control operation even when the trouble is generated in a system by providing plural numbers of a mutually independent operatable supervision tables and executing the trouble indication at the supervision control table being not in use. CONSTITUTION:When a change appears in the data which a transmission slave station 10 reads and a trouble item is generated, a transmission master station 9 adds a discrimination signal indicating this fact and sends out to a central supervision controller 5 side. When a central processor 3 receives the said discrimination signal, investigates whether or not a supervision control table 2 is in use and makes the trouble indication when it is not in use. When the table 2 is in use, the processor 3 investigates whether or not a supervision control table 1 is in use and makes the trouble indication to the supervision control table 1 when it is not in use.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention provides an improvement in a fault display method in a supervisory control system composed of a central supervisory control device and one or more devices subject to supervisory control. It is related to.

<Prior art and problems to be solved by the invention> The above-mentioned monitoring and control system is employed in a telecontrol system used for remote monitoring and control of river management systems, road management systems, power supply systems, etc. The central supervisory control device can turn on and initialize the power to each device, display the status of each device, send control to each device, and display a failure when a failure occurs.

By the way, in the above-mentioned supervisory control system, as the number of devices increases, the amount of operation in the central supervisory control device also increases. In addition, recently, as the functions of devices have improved, failure detection items have become more diverse, so it is no longer possible to indicate a failure by simply lighting a lamp as in the past.

Therefore, it has become common to use a dedicated vehicle (control console) to display the status of each device, control transmission, etc., and to display fault indications on a separate console (fault display vehicle). ing.

By adopting the above usage pattern, the operator can concentrate on control operations at the control console, and in the event of a failure, the operator can learn about the fault display separately from the operation status of the control console. I can do things. Therefore, the fact that a failure has occurred can be known during the control operation, and it is possible to determine whether to continue or interrupt the control operation, depending on the details of the failure.

However, since faults usually occur very infrequently, the fault display vehicle operates for much less time than the control console. Nevertheless, the installation location for the obstacle display vehicle is prepared, and the obstacle display vehicle is provided independently (this is not a desirable situation from the point of view of the efficiency of use of the desk).

Further, since the use of the console is determined, if the fault display vehicle breaks down, fault display cannot be performed, and if the control console breaks down, control operations cannot be performed.

Therefore, in order to improve the usage efficiency of the console, it is possible to use the same console as the fault display vehicle and the control operation console, but in this case, when a fault occurs, the control operation is interrupted and then Failure indication must be made. Therefore, there is a drawback that the progress of the control operation is hindered.

The present invention has been made in view of the above points, and an object of the present invention is to provide a fault display method in a supervisory control system that enables fault display and does not interrupt control operations.

Means for Solving the Problems> A fault display method in the supervisory control system of the present invention to achieve the above object is to provide a plurality of supervisory control consoles that can be operated independently of each other, and to If all monitor and control consoles are in use, a fault is displayed at any specific monitor and control console.

According to the fault display method in the supervisory control system described above, if a fault signal is input while operating one of the multiple supervisory control consoles, the other unoccupied supervisory control console is Since a fault can be displayed on the screen, there is no problem with operation.

In addition, even if one of the supervisory control consoles malfunctions, control operations and failure indications can be performed using other non-faulty consoles, so there is no possibility of any disruption to the operation of the supervisory control system. do not have.

Furthermore, if all the monitor and control consoles are in use, by displaying a fault on any particular monitor and control console, control operations on at least the other monitor and control consoles can be continued.

<Example> Next, an example of the present invention will be described below with reference to the drawings.

Figure 2 shows an outline of the telecontrol system, in which a transmission device (8) that supplies information is connected to a central monitoring and control device (5) via a loop-shaped superway (optical fiber) σ). ing.

The transmission device [F]) includes a transmission master station (9) and a transmission slave station (9).
10) and various terminal devices (11) are provided.

When this system is applied to, for example, road management, the terminal device (11) is a display board, lighting equipment, etc. installed on the road. The transmission master station (9) is connected to the central monitoring and control device (5).
) is used to transmit a control command to a predetermined terminal device (11) via a transmission slave station (10) based on a control signal input from the superway σ). Further, a signal representing the status of the terminal device (11) is read by the transmission slave station (10) and sent to the central monitoring and control device 6) via the transmission master station (9).

The central monitoring and control device (5) includes a central processing unit (3) and two sets of monitoring and control consoles (1) and (2) that can be operated independently of each other.
) is equipped. Each monitoring control console (1), (2) has a display section (la) (2a) and an input section (tb) (2).
b) and a tail.

The display section (la) (2a) is composed of, for example, a CRT display, and the input section (lb) (2b) is composed of, for example, a keyboard.

The operation of the above telecontrol system will be explained. The transmission slave station (10) reads the status display of the terminal device (11) and sends this status display data to the transmission master station (9).

The transmission master station (9) adds the transmission slave station (1) to the above status display data.
0), the address of the transmission master station (9) itself, etc. are added and sent to the central monitoring and control device (5) at a predetermined timing as status display data. For example, the data can be sent to the central supervisory controller (5) at the timing when there is a data acquisition command from the central supervisory controller (5). When the central monitoring and control device (5) receives the above status display data, it displays it on the display unit (la) (2a) together with the identification codes of the transmission master station (9) and the terminal device (11). A data acquisition command from the device (5) to the transmission master station (9) is issued by operating the input section (lb) (2b).

If a change appears in the data read by the transmission slave station (10) and a failure item occurs, the transmission master station (9) adds an identification signal indicating this and sends it to the central monitoring and control unit (5).
send to the side. In this case, the fault indication in the central monitoring and control device (5) is performed as follows.

FIG. 1 is a schematic explanatory diagram showing a fault display procedure. When the central processing unit (3) receives the above-mentioned identification signal, it proceeds from step (2) to step (2) in the figure, and checks whether the supervisory control console (2) is in use. If not in use, step■
Proceed to step 2 and have the supervisory control console (2) display a fault. If it is in use, proceed to step ■ and check whether the supervisory control console (1) is in use. If not, proceed to step ■
Proceed to , and have the supervisory control console (1) display the fault. if,
If the supervisory control console (1) is in use, proceed to step (2) and interrupt the process with the screen of the supervisory and control console (2). Then, the fault is indicated on the monitoring control console.

By the above procedure, when a failure occurs, it is possible to find the monitor control console that is not in use and display a failure message on it. Additionally, if both are in use, the supervisory control console (2) can be given priority to display a fault.

Therefore, if the operator always uses the supervisory control console (1), the failure indication will always be made on the supervisory and control console (2), so the operation on the supervisory and control console (1) will not be interrupted. In addition, even when using two monitoring and control consoles, fault indications are always displayed on the monitoring and control console (2), so if an operation that should not be interrupted is performed on the monitoring and control console (1), and the interruption is unavoidable. Such operations can be performed using the monitoring control console (
You can do it in 2.

In addition, if one of the monitoring and control consoles is out of order, operations can be performed using the normal monitoring and control console, and in this case, fault indications must be made on the normal monitoring and control console. becomes.

Although the present invention has been described above using embodiments, the present invention is not limited to the above embodiments; for example, the number of supervisory control consoles 0 may be three or more. Various other changes can be made without departing from the gist of the invention.

<Effects of the Invention> As described above, according to the fault display method in the supervisory control system of the present invention, a plurality of supervisory control consoles that can be operated independently from each other are provided, and a fault display is performed on the supervisory control consoles that are not in use. Therefore, even if a system failure occurs, the failure can be displayed without interrupting control operations. Therefore, it is possible to prevent a decrease in the efficiency of control operations.

Furthermore, since the above-mentioned supervisory control consoles can be operated independently from each other, the backup function in the event of a failure can be improved.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing a fault display procedure in a telecontrol system as an embodiment of the present invention, and FIG. 2 is a schematic diagram of the telecontrol system. (1), (2)...Monitoring control console patent applicant Nishindenki Co., Ltd. 1tonte 41 (and 2 others> ===-=:-

Claims (1)

[Claims] 1. Multiple monitoring and control consoles that can be operated independently from each other. Several monitor and control consoles are installed and are not in use. Displays faults and monitors all If the control console is in use, select one of the fault display on the monitor control console. A supervisory control system featuring fault display method.