JPH07281734A - Monitor and controlling device - Google Patents

Abstract

PURPOSE:To prevent hand turn back caused by the operational error of a maintenance and check person by discriminating whether equipment state is normal or not by comparing the device state of equipment to be monitored and controlled at the time of check end, with the equipment state before the check and maintenance, and alarming or displaying the result. CONSTITUTION:Corresponding to a state write signal 12y, equipment state storage circuit 13 previously stores the equipment state such as an operation for excluding an operation to the equipment to be a check and maintenance object or a main machine device from the operation when starting the check and maintenance of the equipment to be monitored and controlled and the setting of various data required for the check and maintenance. Corresponding to a comparison start signal 12p to be outputted after fixed time or to be arbitrarily outputted at the time of check and maintenance end, an equipment state comparator circuit 15 compares a state memory signal 13m at the time of check and maintenance start with the present equipment state and discriminates whether the state of the equipment to be monitored and controlled at the time of check and maintenance end shows the equipment state before the check and maintenance or not. Further, a check end alarming circuit 16 extracts state non-coincidence information based on a state discriminated result signal 15e and executes an alarm output and the display-out of the coincident/non-coincident equipment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supervisory control device for editing a device status signal fetched from a supervisory control device and notifying an alarm display device or an information transmission device of information transmission.

[0002]

2. Description of the Related Art A supervisory control device is provided as a device for remotely or directly performing supervisory control of equipment in a substation. A conventional monitoring control device will be described below.

FIG. 5 is a block diagram showing a conventional supervisory control apparatus, which has a device state input circuit 11 for inputting device state signals a to n necessary for supervisory control, and an output from this device state input circuit 11. A state information editing circuit 12 for inputting device state signals 11a to 11n, editing this, and making an information transmission notification 12e,
A device state storage circuit 13 that stores the device state signals 11a to 11n by a state storage write signal 12w output from the state information editing circuit 12 when editing the state information, and the state information editing circuit 12 described above.
The status sending circuit 14 inputs the external sending information 12e from the device and notifies the alarm display device and the information transmitting device of the sending signal 14s. The operation of this conventional supervisory control device is as follows.

With the above-mentioned configuration of the monitoring control device, in normal times, the device status signal of the monitored control device is fetched,
The device status signal taken in is edited into the sending information 12e by the status information editing circuit 12, and the information sending notification 14s is sent to the alarm display device and the information transmitting device.

At the time of inspection / maintenance of the monitored / controlled device, a switching operation for excluding the device operation from the operation and various data necessary for starting the inspection / maintenance are set for the monitored / controlled device to be inspected / maintained, and the inspection is completed. At times, the monitored and controlled equipment is switched from excluding equipment operation to use and is set to return to various data necessary for normal operation.

In the conventional supervisory control device, it is not automatically determined whether the equipment state of the equipment to be monitored and controlled at the end of inspection and maintenance is normal operation or not. To determine the status of the equipment, the equipment status of the monitored and controlled equipment at the end of the inspection and maintenance should be checked by the maintenance personnel again, or the operator should check based on the equipment status information sent from the monitoring and control equipment. It is performed according to the work instructions to the maintenance staff.

From the above results, according to the conventional supervisory control device, the inspection and maintenance staff and the operator perform the state judgment of the equipment state of the supervised control equipment at the end of the inspection and maintenance, thereby performing the supervisory control of the supervised control equipment. Can continue operation.

[0008]

As described above, the conventional monitoring and control apparatus is based on the status information of the monitored control equipment regardless of the switching operation at the end of inspection of the monitored control equipment and the setting status of various data. Since it depends on the confirmation of maintenance personnel and operators, there was a problem that malfunctions of monitored and controlled equipment may occur due to operation mistakes by maintenance personnel and forgetting to reset various data settings or delays in operator confirmation instructions. . Also,
There is also a problem that the monitoring and control operation of the monitored and controlled device cannot be performed smoothly due to inspection or the like.

In order to solve the above problems, the object of the present invention is to compare and judge the equipment state at the end of the inspection of the monitored and controlled equipment and to compare and judge the equipment state before the maintenance, and to check the operation error of the maintenance personnel and various data. Automatic notification of the alarm display for forgetting to reset the settings can be prevented, and this alarm display notification can prevent rework due to operation errors by maintenance personnel and delays in operator confirmation instructions. Another object of the present invention is to provide a supervisory control device capable of smoothing the supervisory control operation.

[0010]

According to a first aspect of the present invention, there is provided a supervisory control device in which a plurality of supervised control devices are provided to monitor and control by inputting status signals of a plurality of supervised control devices. The device status input circuit for inputting the device status signal of the device, the status information editing circuit for editing the device status signal output from the device status input circuit into the sending information, and the external sending information from the status information editing circuit. A status sending circuit for inputting and notifying a sending signal to an alarm display device or an information transmission device, and a device status storage circuit for storing a device status signal of the monitored and controlled device at the start of inspection and maintenance of the monitored and controlled device, At the end of inspection / maintenance, the device state stored at the start of inspection / maintenance is compared with the current device state after a fixed time limit or by an arbitrary signal, and the device state at the end of inspection is a operable device state. A device status comparison circuit to perform, an inspection end alarm circuit that extracts a status match / mismatch signal from the comparison result signal output from the device status comparison circuit, and an alarm and mismatch information from the inspection end alarm circuit are displayed and output. And a display output circuit.

The monitoring and control apparatus according to [Claim 2] of the present invention, in addition to the configuration of [Claim 1], is provided with a pre-check status command circuit for outputting pre-check status mismatch information by an arbitrary status match command. Be prepared.

The monitoring and control apparatus according to [Claim 3] of the present invention is different from the above [Claim 1] and [Claim 2] in that
An inspection information editing circuit is provided for editing the alarm, match / mismatch information, and pre-inspection state mismatch information into information to be transmitted to an alarm display device or an information transmission device.

[0013]

According to the first aspect of the present invention, the supervisory control device stores in advance the device state of the monitored and controlled device at the start of the inspection and maintenance, and after the fixed time period at the end of the inspection and maintenance or when an arbitrary signal is generated. Compare the stored information at the end of inspection and maintenance with the current device status, and output the alarm and display to the outside of the monitoring and control device as a result of determining whether the device status at the end of inspection and maintenance is normal or incorrect. .

The monitoring and control apparatus according to [Claim 2] of the present invention, in response to the operation according to [Claim 1], sets and returns the device status by outputting an alarm and display to the outside of the monitoring and control apparatus and a status matching command. And a return command.

The monitoring and control apparatus according to [Claim 3] and [Claim 4] of the present invention provides an alarm display device and an information transmission apparatus for the operation according to [Claim 1] and [Claim 2]. Send information notification.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the supervisory control device according to claim 1 of the present invention will be described below. The configuration of the supervisory control device of the first embodiment will be described. FIG. 1 is a block diagram showing a supervisory control device of the first embodiment. The same parts as those in FIG. 5 will be described with the same reference numerals. The supervisory control device of FIG. 1 has a status writing signal 12 at the start of inspection of the monitored control equipment.
y and the status information editing circuit 12X that outputs the comparison start signal 12P signal that is output after a fixed period of time at the end of inspection and maintenance or arbitrarily
And a device state storage circuit 13 that stores the device state with the state write signal 12y, and a comparison between the storage signal 13m from the device state storage circuit 13 and the device state signals 11a to 11n based on the comparison start signal 12P. The device status comparison circuit 15 for performing a correct / wrong determination as to whether or not the current device status is normal operation, and the inspection end warning circuit 16 for extracting a status mismatch signal by the status determination result signal 15e of the device status comparison circuit 15, A display output circuit 17 for displaying and outputting the alarm from the inspection completion alarm circuit 16 and the match / mismatch information 16a is provided. Other configurations are the same as those of the conventional device.

FIG. 2 is a detailed configuration diagram of the device state comparison circuit 15. The device state comparison circuit 15 uses the comparison start signal.
The inspection information extraction circuit 153 that outputs the state extraction signal 153a that extracts the comparison target input of the device state signals 11a to 11n at the end of inspection and maintenance by the 12P and the target extraction completion signal 153b of the comparison target extraction that performs the device state comparison start is provided. Further, a state signal extraction circuit 151 for outputting a state signal 151a extracted from the current equipment state input signals 11a to 11n is provided, and further, the state storage signal 13m and the state signal 151a are targeted extraction completion signals.
153b performs comparison judgment and correctness judgment, and judgment result information
A device state comparison / determination circuit 152 for outputting to the inspection completion alarm circuit 16 is provided as 15e.

Next, the operation of the supervisory control device of this embodiment will be described. At the start of the inspection and maintenance of the monitored control equipment, write the state of the equipment state such as the operation to exclude the operation of the monitored control equipment and the main equipment from the operation and the setting of various data required for the inspection and maintenance in advance. It is stored in the device status memory circuit 13 by the signal 12y, and after the fixed time limit at the end of inspection / maintenance or at any time by the comparison start output 12p output from the status information editing circuit 12x, The current device status is compared by the device status comparison circuit 15, and a comparison judgment and a correctness judgment are made as to whether or not the device status of the monitored and controlled device at the end of the inspection and maintenance is the device status before the inspection and maintenance. In the device state comparison circuit 15,
Device status comparison / discrimination circuit by extracting only the controlled equipment to be inspected and maintained by the inspection information extraction circuit 153
I am trying to do it with the minimum necessary with 152.

Further, based on the status judgment result signal 15e, the inspection end alarm circuit 16 extracts the state inconsistency information, and outputs an alarm and a display of the coincidence / non-coincidence device so that the inspection maintenance personnel can check the equipment at the end of the inspection. Status information can be notified.

From the above results, according to the first embodiment, the state of the equipment state is judged by comparing the equipment state at the end of inspection and maintenance of the monitored and controlled equipment with the equipment state at the start of inspection and maintenance. Since it is possible to issue an alarm and display output of the state determination result information to the outside of the monitoring control device, it is possible to prevent the monitoring control device from forgetting to return to the state at the start of the inspection when the inspection ends.

Next, a second embodiment of the present invention, that is, an embodiment of the supervisory control device according to claim 2 will be described below. First, the configuration of the supervisory control device of the second embodiment will be described. Figure 3
FIG. 7 is a configuration diagram showing a monitoring control device of a second embodiment, but the same parts as those in FIGS. 1, 2 and 5 are designated by the same reference numerals and the description thereof will be omitted. The monitoring control device of FIG. 3 is different from the configuration of the first embodiment in that it issues an alarm and a display to the outside of the monitoring control device based on the alarm from the inspection end alarm circuit 16 and the match / mismatch information 16a and from the outside. Status match command 18
A pre-inspection state command circuit 18 for outputting a state return setting command 18b and a return command 18c according to a is provided. Other configurations are similar to those of the first embodiment.

The operation of the supervisory control device of the second embodiment will be described. Similar to the operation described in the first embodiment, the inspection end warning circuit 16 extracts the status mismatch information based on the status determination result signal 15e, outputs an alarm and displays the mismatched device, and displays the status from the outside. Pre-inspection status command circuit 18 sends a command to return and set the status of the equipment in the supervisory control device using the match command 18a
18b is output to the device state storage circuit 13 to bring it to the state before inspection, and at the same time, the device state return command 18c is externally output to notify the maintenance personnel of the re-inspection information of the device state.

From the above results, according to the second embodiment, as in the first embodiment, the equipment state at the end of inspection and maintenance of the monitored and controlled equipment is compared with the equipment state at the start of inspection and maintenance. With this, it is possible to determine the status of the equipment status, issue an alarm and display output of the status determination result information to the outside of the monitoring control apparatus, and set and return the status by any status matching command. This is effective in preventing forgetting to return to the state at the start of the inspection at the end of the inspection.

Next, an embodiment (third embodiment) of the supervisory control device according to [Claim 3] of the present invention will be described below. Figure 4
FIG. 6 is a configuration diagram showing a monitoring control device of a third embodiment.
The same parts as those in FIGS. 1 to 3 and 5 are designated by the same reference numerals and the description thereof will be omitted. The monitoring control device of FIG.
Compared to the configuration of the embodiment, the pre-inspection state command circuit in FIG.
18 and an inspection information editing circuit 19 for editing the status return setting command 18b from the command circuit 18 and the information 16b into the transmission information 12e. Other configurations are similar to those of the first and second embodiments.

The operation of the supervisory control device of the third embodiment will be described. The operation is similar to that described in the first and second embodiments,
By giving the alarm / mismatch information 16a and the status return setting command 18b to the status information sending circuit 14 as the sending information 12e, the information sending notification 14s to the alarm display device or the information transmitting device is sent.
Is done automatically.

From the above results, according to the third embodiment, similarly to the first embodiment, the equipment state at the end of inspection and maintenance of the monitored and controlled equipment and the equipment state at the start of inspection and maintenance are compared. The status of the equipment status is judged and the status judgment result information is sent to the outside of the monitoring and control device by an alarm and display output, or the status return setting and the return command are issued by an arbitrary status match command, and the alarm display device and the information transmission device are further notified. Since the information transmission notification can be automatically performed, there is an effect that it is possible to prevent forgetting to return the monitoring control device to the state at the start of the inspection at the end of the inspection.

[0027]

As described above, according to the supervisory control device of the present invention, the condition of the monitored and controlled device at the end of the inspection is automatically discriminated and verified, and the operation error of the maintenance staff and the setting of various data are performed. The effect of smoothing the monitoring and control operation of the monitored control device by preventing the manual rework due to the operation error of the maintenance staff and the delay of the operator's confirmation instruction by automatically issuing the alarm display notification for the forgetting to return There is.

According to [Claim 1] of the present invention, the state of the monitored and controlled device at the start of inspection and maintenance of the monitored and controlled device is stored, and the above-mentioned inspection is performed after a fixed time period or when an arbitrary signal is generated. Inspection of monitored control equipment by comparing the stored information at the start of maintenance with the status of the monitored control equipment at present and inspecting by displaying the external alarm display and outputting the result of judgment whether the equipment status at maintenance end is normal or incorrect This has the effect of preventing forgetting to return to the state at the start of inspection at the end.

According to [Claim 2] of the present invention, in response to the effect according to [Claim 1], the external alarm display, output, and the return command of the state are issued by the coincidence command. This has an effect of preventing forgetting to return to the state at the start of the inspection at the end of the inspection.

According to [Claim 3] of the present invention, the monitored control is performed by notifying the effect of [Claim 1] and [Claim 2] of information transmission to the alarm display device and the information transmission device. This has an effect of preventing forgetting to return to the state when the inspection was started when the inspection of the equipment was completed.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a supervisory control device according to a first embodiment of the present invention,

FIG. 2 is a detailed configuration diagram of a device state comparison circuit according to the first embodiment of the present invention,

FIG. 3 is a block diagram of a supervisory control device according to a second embodiment of the present invention,

FIG. 4 is a configuration diagram of a supervisory control device according to a third embodiment of the present invention,

FIG. 5 is a configuration diagram of a conventional monitoring control device.

[Explanation of symbols]

 11 ... Device status input circuit 12 ... Status information editing circuit 13 ... Device status storage circuit 14 ... Status information sending circuit 15 ... Device status comparison circuit 16 ... Inspection completion alarm circuit 17 ... Alarm display output circuit 18 ... Pre-inspection status command circuit 19 … Inspection information editing circuit 151… Input signal extraction circuit 152… Device status comparison / discrimination circuit 153… Inspection information extraction circuit

Claims (4)

[Claims] 1. A device status input circuit for inputting device status signals of a plurality of monitored and controlled devices, and a device status input circuit in a supervisory control device for monitoring control by inputting status signals of a plurality of monitored and controlled devices. Input the equipment status signal output from the circuit, edit it as transmission information, and output it, and input the status information editing circuit and the transmission information output from this status information editing circuit to the alarm display device or information transmission device. Status signal sending circuit for notifying the sending control signal, a device status storage circuit that stores the device status signal of the monitored and controlled device at the start of the inspection and maintenance of the monitored and controlled device, and whether a fixed time period has passed after the inspection and maintenance. With a device status comparison circuit that compares the device status stored at the start of inspection and maintenance with the current device status using an arbitrary signal, and makes a comparison / determination that the device status at the end of inspection is an operable device status. An inspection end warning circuit for extracting a state disagreement signal based on the comparison result signal output from the device state comparison circuit, and a display output circuit for displaying and outputting an alarm from the inspection end alarm circuit and coincidence / disagreement information A monitoring and control device characterized by the following. 2. The supervisory control device according to claim 1, further comprising a pre-inspection state command circuit that outputs pre-inspection state inconsistency information in response to an arbitrary state coincidence command. 3. A pre-inspection state command circuit for outputting pre-inspection state inconsistency information by an arbitrary state coincidence command, and transmitting the alarm, match / mismatch information, and pre-inspection state inconsistency information to an alarm display device or an information transmission device. The monitoring control device according to claim 1, further comprising an inspection information editing circuit that edits information. 4. A device state comparison circuit is provided with a state extraction signal for extracting a comparison target input of a device state signal at the end of inspection and maintenance by the comparison start signal and a target extraction completion signal for comparison target extraction for performing a device state comparison start. An inspection information extraction circuit that outputs, a status signal extraction circuit that outputs a status signal extracted from the current device status input signal, and a comparison determination and a correctness determination by the target extraction completion signal between the status storage signal and the status signal. 4. The monitoring control device according to claim 1, further comprising a device state comparison / discrimination circuit that outputs the discrimination result information to the inspection end alarm circuit.