JPH0642241Y2 - Central supervisory controller - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a central supervisory control device for integrally monitoring and controlling facility equipment such as power receiving and transforming equipment, air conditioning equipment, etc. The present invention relates to a central supervisory control device that can be dealt with quickly.

[Prior Art] A conventional device of this type is shown in FIG. FIG. 3 shows an overall block circuit diagram of the conventional device. In FIG. 3, a conventional central supervisory control device is a remote control means for integrally monitoring and controlling a plurality of equipments (61), (62). 1) and signal input means (2) for receiving and inputting each signal transmitted from the plurality of equipments (61), (62).
And an abnormality monitoring means for monitoring abnormality of a plurality of equipments (61), (62) based on each signal input by the signal input means and transmitting the monitoring result to the remote control means (1). (3) and signal output means (5) for sending the control signal of the remote control means (1) to a plurality of equipments (61), (62)
And is configured.

Next, the operation of the conventional device based on the above configuration will be described. First, when a failure occurs in the equipment (61), a failure signal is output from the equipment (61), and the output failure signal is input to the signal input means (2) for abnormality monitoring means. Output to (3). The abnormality monitoring means (3) determines which equipment and what kind of failure has occurred based on the input failure signal, and the abnormality signal of the equipment is sent to the remote control means (1) based on this determination result. Based on the transmitted abnormality signal, the abnormality of the device is notified by a buzzer, a display panel or the like (not shown) of the remote control means (1).

Based on the notification operation of the remote control means (1), processing such as repair of the equipment device (61) having a failure is performed.

[Problems to be Solved by the Invention] Since the conventional central supervisory control device is configured as described above, there is a fear that the operator may not send out the control command from the remote control means without noticing the equipment device having the failure. Therefore, there was a problem that the safety and management of the equipment could not be fully achieved.

The present invention has been made to solve the above problems, and when an abnormality occurs in the equipment, the control command to the equipment in which the abnormality occurs is automatically blocked and the equipment is controlled. The present invention relates to a central supervisory control device capable of achieving complete security and management.

[Means for Solving Problems] A central supervisory control device according to the present invention integrally monitors and controls facility equipment by means of supervisory control means, and controls the facility equipment based on a signal transmitted from the facility equipment. The abnormality is determined by the abnormality monitoring means, and the control signal transmitted from the monitoring control means to the equipment determined to be abnormal based on the determination result is suppressed by the control suppressing means to be invalid.

[Operation] In the case where the control signal sent from the monitoring control means is for the equipment having a failure, the control suppressing means in the present invention automatically blocks this control signal to cause the equipment having a failure. Protect equipment.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 shows an overall circuit block diagram of the present embodiment. In the figure, a central supervisory control device according to the present embodiment is a remote control unit for supervising and controlling a plurality of equipments (61), (62). Control means (1), signal input means (2) for receiving and inputting each signal transmitted from the plurality of equipments (61), (62), and each signal input by the signal input means Abnormality monitoring means (3) for monitoring abnormality of a plurality of equipments (61), (62) based on the above, and transmitting the monitoring result to the remote control means (1), and the abnormality monitoring means (3)
The monitoring result and the received signal from the signal input means (2) are input, and the equipment (6
1), control output means for preventing control signals from being sent to (62), and signal output for sending control signals from the remote control means (1) to a plurality of equipment devices (61), (62). And means (5).

Next, the operation of this embodiment based on the above embodiment will be described. First, when a failure occurs in the equipment (61) and a failure signal is transmitted, this signal is sent to the abnormality monitoring means (3) and the control suppressing means (4) via the signal input means (2), respectively. Is entered. The abnormality monitoring means (3) analyzes the meaning of the signal contents based on the input failure signal and performs monitoring operation such as confirmation of the name of the equipment in which the failure has occurred.
The result of this monitoring operation is input to the remote control means (1),
Abnormality is notified by a display panel, buzzer, etc. (not shown).

Simultaneously with this notification, the monitoring result is also input to the control suppressing means (4), and the control suppressing operation for invalidating the control signal sent from the remote control means (1) is performed.

Furthermore, the control signal instructed by the remote control means (1) confirms the number of the corresponding device and the control content (ON command / OFF command) by the abnormality monitoring means (3), and notifies the control suppressing means (4) of the control signal. It is checked whether or not control output to the equipment is possible, and if an abnormal condition is continuing, a message indicating that the control signal is invalid is returned to the remote control means (1) by a predetermined message to instruct suppression. If there is not, the control signal is sent as it is to the target equipment through the signal output means (5). Further, from the remote control means (1), in addition to the instruction of the control output, the effective / ineffective condition for the control suppressing means (4) can be manually switched to eliminate the controllable condition at the time of abnormality. Alternatively, the control suppression condition in the normal state can be validated.

Next, the central processing unit (hereinafter CP
Fig. 2 shows a detailed block diagram of the procedure in U).
In the figure, a supervisory control device (14) is mainly composed of a CPU (20), manages a memory (21), an input circuit (22) and an output circuit (23) and processes various signals. (15) shows a remote control means, for display through the input / output circuit (19)
LCD (16), built-in buzzer (17), input keyboard (18)
Signal is taken in or output. The equipment (27) consists of an abnormality detection contact (25) and a start / stop relay (26), and the abnormality detection contact (25) is connected to the input circuit (22) through the general-purpose terminal block (24). The start / stop relay (26) is connected to the output circuit (23).

FIG. 4 shows a flow chart of the processing of the abnormality monitoring means (3) and the control suppressing means (4) in FIG. 1, and FIG. 5 shows a data table structure diagram in the memory for performing signal processing. In the above-mentioned figures, as the signal change processing of the signal sent from the equipment, the terminal number and the change content are fetched at the time of change (step 28), and the fetched content is applied to the corresponding terminal by using the terminal number table (46). Search for the number (NO) (step 29). Then, the current value (47) attached to the terminal number (NO) is changed (step 30), and it is checked whether or not the signal is the abnormality determination signal (48) (step 3).
1). If the inspection result is a failure signal, the link (49) to the device name data is traced, and the control lock flag (52) linked to the device is validated (step 3
2). At the same time, the device name (50) and device number (NO) are read from the table (step 33), and the display LCD (1
Send data to 6) (step 34). Further, an abnormal alarm is issued by sounding the built-in buzzer (17) (step 35).

Next, as key operation processing, the input keyboard (18) of the remote control means (15) is loaded into the CPU (20) with the device number (NO) and the operation content (step 36). First, the operation command is analyzed (step 37), and if it is a control output instruction command, the device number (NO) table is used to inspect the specified device number (NO) and a search is performed (step 37).
38), (Step 39). If there is a corresponding one by this search, the link (53) of the data is traced to check the state of the control lock flag (52) (step 40). If the current lock is invalid, the output terminal number (55) of the data link destination is fetched (step 41), and output of predetermined control is requested to the actual terminal (step 42).
If the current locked state is valid, a designated error message is output to the operation LCD (step 43) to inform the operator of the intention of the operation inadequacy.

When the operation command is to change the state of the control suppression flag, the device number (NO) table is searched to inspect the device (step 44), (step 45). The control lock flag of the link destination is directly changed (step 46).

In the above embodiment, the control suppressing means is used as a means for preventing an aggravation of the cause of the failure by giving an unsuitable control instruction when the device is in a failure state, but the suppressing means (control lock flag) is For example, when grouping managed devices together and performing collective control, etc., if a large number of registered devices in a group are set in advance and you want to suppress the control of only one of them, lock that device. It can be executed by a simple operation simply by switching the flag effectively.

[Effect of the Invention] As described above, according to the present invention, the device is based on the change of the state signal of the equipment and the control lock flag provided corresponding to the equipment and enabled when the equipment is abnormal. An abnormality monitoring means for determining whether or not is abnormal, and validating the control lock flag corresponding to when the equipment is abnormal,
Since the control suppression means for suppressing the control signal based on the output of the abnormality monitoring means is provided, when the failure occurs in the equipment, the control output for the equipment is automatically suppressed to maintain and manage the equipment. It is possible to improve the reliability of the entire system.

In addition, the control lock flag stores the abnormal status of the device.
Since it is retained, it is easy to find the cause of failure.

[Brief description of drawings]

FIG. 1 is an overall circuit block diagram of a central supervisory control device according to an embodiment of the present invention, FIG. 2 is a detailed block diagram of the present embodiment, and FIG. 3 is an overall circuit block diagram of a conventional centralized supervisory control device. FIGS. 4A and 4B are process flowcharts of the abnormality monitoring means and the control suppressing means of FIG. 1, and FIG. 5 is a data table structure diagram. In the figure, (1) is remote control means, (2) is signal input means, (3) is abnormality monitoring means, (4) is control suppression means, (5) is signal output means, and (6) is equipment. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (2)

[Scope of utility model registration request] 1. A signal input means for receiving a status signal sent from equipment, and a terminal number table in which the equipment and the input terminals of the signal input means are associated with each other.
A control lock flag which is provided corresponding to the equipment and is enabled when the equipment is abnormal, and the equipment corresponding to the status signal input to the signal input means based on the terminal number table are searched. And an abnormality monitoring unit that determines whether the equipment is abnormal based on the change in the status signal and validates the control lock flag corresponding to the identified equipment when the equipment is abnormal. A monitoring control means for controlling the equipment,
A device number table in which the facility device is associated with a control target of the monitoring control means, and the facility device corresponding to the control signal sent from the monitoring control means is searched and specified based on the device number table. In addition, when the control lock flag of the specified equipment is invalid, the control signal is output, and when the control lock flag is valid, the control monitoring means for suppressing the control signal is centrally monitored. Control device. 2. The abnormality monitoring means transmits to the monitoring control means the abnormality determination result of the equipment based on the state signal of the equipment sent from the signal input means, and the information about the equipment having the abnormality is sent to the monitoring control means. The central supervisory control device according to claim 1, characterized in that the supervisory control means gives notification.