JPH11353002A - Monitor controlling system and storage medium recording program for executing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the omission of recording data, to prevent the duplication of the recording data and to eliminate unrequired recording data by switching a monitor controlling device to another normal monitor controlling device when the monitor controlling device connected beforehand becomes abnormal. SOLUTION: A recorder 101 is connected to plural monitor controlling devices 103-105 by a switching device 102 and by switching the switching device 102, recording processings respectively corresponding to the respective monitor controlling devices 103-105 are performed. In the case that one optional monitor controlling device connected by the switching device 102 becomes abnormal and the respective kinds of data gathering processings can not be performed, it is switched to the remaining normal monitor controlling device, and since the unrequired recording data are not recorded nor outputted when it is switched and the data omission of the recording output is prevented, the recorder is shared and the duplication of the recording data and a data loss are prevented. Also, it is applied to the system of an ordinal use - ordinal use system, the reliability and stability of the system are improved and the software and hardware of the monitor controlling device are simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring control system in a substation and the like, and a recording medium storing a program for executing the system.

[0002]

2. Description of the Related Art In the case of recording various data from a plurality of monitoring control devices, a conventional method is to connect one recording device to one monitoring control device, and in a conventional-standby system, it is connected to a normal system. There is a method in which the recording device is switched to a standby system and used.

In the former case, data duplication occurs by printing the same data in each monitoring control device and the recording device. In the latter case, data loss occurs when switching to the standby system due to a normal device abnormality. Could occur.

[0004]

In recent years, there has been a strong demand from the market for simplification of the system and cost reduction, and it has become necessary for a plurality of monitoring control devices to share one recording device. Therefore, the software of multiple monitoring and control devices is shared, and a system that operates all monitoring and control on a regular basis (hereinafter referred to as “regular-regular system”) is used to improve system stability and reliability, software and hardware. Simplification is also needed.

The present invention has been made in view of the above circumstances, and when one recording device is shared by switching between a plurality of monitoring control devices, it is possible to prevent omission of recording data at the time of switching and to prevent recording data from being lost. It is an object of the present invention to provide a monitoring control system which prevents duplication of data and eliminates unnecessary recording data, and a recording medium recording a program for executing the system.

[0006]

According to a first aspect of the present invention, a monitoring and control system monitors and controls a facility to be monitored or an entire system, and collects various data as a result. In a monitoring and control system having a monitoring and control device and a recording device for recording the collected various information, a single recording device is provided for a plurality of monitoring and control devices so as to be switchable and connected in advance. When the monitoring control device becomes abnormal, there are provided means for switching to another normal monitoring control device, means for not recording and outputting unnecessary recording data at the time of switching, and means for preventing data loss in recording output.

Therefore, when the monitoring control device connected to the recording device becomes abnormal and various data collecting processes cannot be performed, the monitoring device is switched to the remaining normal monitoring control device, and unnecessary recording data is recorded and output when the switching is performed. In addition, the recording device can be shared in order to prevent data loss in the recording output, preventing duplication of recording data and data loss,
Further, the present invention can be applied to a common-use system, improving the reliability and stability of the system, and further simplifying the software and hardware of the monitoring and control device.

According to a second aspect of the present invention, a monitoring and control system according to the first aspect of the present invention includes a management device that manages the switches in accordance with the priority of the monitoring and control device.

In the monitoring control system according to the third aspect of the present invention, in the first aspect, the order of the monitoring control devices is set in advance, and the monitoring control device connected to the recording device becomes abnormal. In this case, there is provided a means for switching the monitoring control device for recording according to the determined order.

According to a fourth aspect of the present invention, in the first aspect of the present invention, when the monitoring control device connected to the recording device becomes abnormal, the monitoring control system according to the first aspect of the present invention controls all the monitoring control devices. It is provided with means for determining whether or not data has been input, and switching the monitoring control device in order from the monitoring control device to which data has been input.

According to a fifth aspect of the present invention, in the monitoring control system according to the first aspect, when the monitoring control device connected to the recording device is normal, the monitoring control device is not connected to the recording device. Other monitoring and control devices have a means of not destroying or storing recorded data by software.

According to a sixth aspect of the present invention, in the monitoring control system according to the first aspect, when the monitoring control device connected to the recording device is normal, it is not connected to the recording device. Other monitoring control devices have a means for outputting recording data to a fictitious device.

According to a seventh aspect of the present invention, in the first aspect of the present invention, when the monitoring control device connected to the recording device becomes abnormal, the other monitoring control device transmits the recording data to the recording device. Means are provided for storing the recorded data until the device is switched.

[0014] The monitoring control system according to claim 8 of the present invention provides the monitoring control system according to claim 7, wherein when recording data is stored, when the monitoring control device connected to the recording device becomes abnormal. Means are provided for saving a time difference until another monitoring control device determines that the monitoring control device is abnormal, from data that is retroactive to the time when the monitoring control device is determined to be abnormal.

According to a ninth aspect of the present invention, in the monitoring control system according to the first aspect, the recording device is manually switched, and the monitoring control device connected to the recording device becomes abnormal. In the event of a failure, there is provided a means for issuing a message, display, alarm, or the like to switch to another normal monitoring and control device.

A recording medium according to a tenth aspect of the present invention is a recording medium in which software for executing the processing is recorded in any one of the first to ninth aspects.

[0017]

FIG. 1 is a block diagram showing an embodiment of a supervisory control system according to the present invention. In FIG. 1, one recording device 101 is connected to a plurality of monitoring control devices 103, 104, and 105 by a switch 102, and by switching this switch 102, each monitoring control device 10
3 shows an overall configuration capable of performing recording processing corresponding to 104, 105, and 105, respectively.

Therefore, as an operation, when the monitoring control device connected to the recording device in advance becomes abnormal and data cannot be recorded, switching to the remaining normal monitoring control device is performed.

According to the present embodiment, when one recording device is used by a plurality of monitoring control devices by an arbitrary one monitoring control device with a switch, the connected monitoring control device becomes abnormal and various types of monitoring control devices become abnormal. When the data collection process cannot be performed, the recording device is switched to the remaining normal monitoring control device, and unnecessary recording data is not recorded and output when the switching is performed. Can be used to prevent duplication of recorded data and prevent data loss, and can be applied to a regular / regular system to improve the reliability and stability of the system. The simplification of the wear becomes possible.

FIG. 2 is a block diagram showing another embodiment. 2, the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. The configuration of this embodiment is characterized in that a management device 201 for managing a switch is provided, and the other configuration is the same as that of FIG.

Here, the switch 102 is controlled by the management device 201, and the management device is composed of a plurality of monitoring control devices 103.
, 104 and 105 are monitored (203), the status of each monitoring control device connected to the recording device 101 is confirmed by the switching device 102, and a switching command is output to the switching device as necessary.

This switches the monitoring control device connected to the recording device. At this time, each monitoring control device 103
, 104, and 105 are set in advance, and are set in the form of a priority table, and are managed by the management device 201.

FIG. 3 shows a configuration example of the priority order table.
As shown in FIG. 3, this table 301 has priority 1
This table is a table in which the monitoring control devices 1 to n can be arranged and listed in correspondence with.

As shown in Table 301, priorities are assigned to the monitoring control devices 103, 104, and 105 in accordance with the form to be used in advance, and the management device 201 or the monitoring control device 10 is assigned according to the priorities.
3, 104 and 105 judge and switch.

FIG. 4 is a flow chart showing the contents of processing related to switch control of the management device. First, the management device performs a process of connecting the switch 102 to an arbitrary monitoring control device 103, 104, or 105 or connecting to the monitoring control device 103 having the highest priority in the initial setting (step 402) process. A command (202) is issued to the switch 102. Various methods are conceivable for the initialization processing according to the form to be used.

Next, the management device monitors whether the monitoring control device 103 connected to the recording device 101 is normal (step 403).
However, if it is determined that there is an abnormality, a command is sent to the switch 102 (202) in the process of switching to the next monitoring control device 104 using the priority order in the priority order table 301 (step 404).
Put out.

In the above description, it has been described that the priorities are determined and switching is performed in accordance with the order. However, the present invention is not limited to this, and a simple switching order may be determined instead of the priorities. Of course.

FIG. 5 is a flow chart showing the contents of the priority determination processing (step 501) in each of the monitoring control devices 103, 104 and 105. As shown in FIG. 5, each of the monitoring control devices 103, 104, and 105 has the above-described priority order table, and uses the table to identify the monitoring control device whose priority is immediately before the position of the own device. Then, the abnormal state of the monitoring control device is grasped (step 502).

For example, in the case of the monitoring and control apparatus 2, the monitoring and control apparatus having the immediately preceding priority in the ranking table 301 can be determined as the monitoring and control apparatus 1. Here, when the immediately preceding monitoring control device is determined to be abnormal in step 503, a recording start command is given to the recording process in the own device in step 504, and the process ends. In some cases, this process is periodically executed in the monitoring control device.

FIG. 6 is a flowchart showing the content of the first-arrival determination processing in the switch for performing first-arrival switching. In FIG. 6, the switch 102 is used in step 602 for all the monitoring and control devices.
It is determined whether data has been input from 103, 104, and 105, and in step 603, the monitoring control device to which data has been input is determined. If there is no input, confirmation and determination are performed again (steps 602 and 603). If there is an input, the monitoring control device corresponding to the input is determined (steps 604 and 60).
5, 606), and then a process of switching to the monitoring control device is performed (step 607).

Here, if an error occurs in the switched monitoring and control device, no data is input.
At 608, it is determined whether or not there is input data, and if so, the state is maintained, and when there is no more input data, a process of confirming data input from all monitoring and control devices again (step 602). Execute.

According to the present embodiment, when the monitoring control device connected to the recording device becomes abnormal, the monitoring control device that performs recording on a first-come, first-served basis is switched from the other monitoring control devices. In addition to being able to be shared, the system can be applied to a common-use system, and the reliability and stability of the system can be improved, and the software and hardware of the monitoring control device can be further simplified.

FIG. 7 is a flow chart showing the processing contents of the abnormality judgment processing of the other monitoring control devices in the monitoring control devices 103, 104, 105. In FIG. 7, each monitoring control device
Each of 103, 104, and 105 executes a process (step 702) for confirming whether or not there is an abnormality in the monitoring control device other than the own device.

At step 703, it is determined whether or not there is an abnormality.
If there is no abnormality, the monitoring process is continued in step 702. If there is an abnormality, a recording start command is given to the recording process in the own device in step 504, and the process ends. In some cases, this process is periodically executed in the monitoring control device.

According to the present embodiment, when the monitoring control device connected to the recording device is normal, the other monitoring control devices not connected to the recording device discard or discard the recording data by software. Since the data is not stored, the recording apparatus can be shared, and duplication of the recorded data can be prevented.

FIG. 8 is a flow chart showing the processing contents of the recording processing in the monitoring control devices 103, 104 and 105. FIG.
In the recording process, first, data to be recorded is collected together with other processing results (step 802), and then, in step 803, it is determined whether the recording device is connected to its own device. If the recording device is connected, the recording data is output to the recording device in step 804, and the next data is collected in step 802.

If it is determined that the recording device is not connected, then the priority determining process of the monitoring control device in the own device (step 501 in FIG. 5) or the abnormality determining process of the monitoring control device (step in FIG. 7) 701), it is determined whether or not a recording start command has been issued (step 805). If not, the own device is normal, so the collected data is discarded or output to a fictitious device (step 806). To delete the collected data from the own device.

If a recording start command has been issued, the data collected in step 807 is stored and
It is determined whether or not the recording device has been switched and connected to the own device. When the connection is switched to the own device by the management device 201 or the like as shown in FIG. 2, the stored data is output to the recording device in step 809, and the recorded data is collected again in step 802.

If the recording device is not connected, a message is output as needed (step 810),
In the case of the first-come-first-served switch 102 as shown in FIG.
At step 811, the stored data is output to the recording device or the like, and the process waits for a while. At step 812, it is confirmed whether or not the switch 102 is switched to its own device.

If connected to the recording device, the stored data is output to the recording device in step 809. If not connected, the recorded data is discarded or output to the fictitious device in step 806. Then, the flow returns to the recording data collection in step 802 again.

According to the present embodiment, when the monitoring control device connected to the recording device is normal, the other monitoring control devices not connected to the recording device discard the recording data (fictitious device). Output), the recording device can be shared, and duplication of the recorded data can be prevented.

FIG. 9 is a flow chart showing the contents of processing for managing time in the recording processing in the monitoring and control devices 103, 104 and 105. In FIG. 9, the flow of the recording process itself is the same as in FIG. The difference from FIG. 8 in the present embodiment is that, after executing the recording start instruction determination process (step 805), it is determined that there is no instruction, and the process of determining whether the recording device is connected (step 812). ) Is a process after the process determined not to be.

Here, if it is determined that there is not, step
The difference between the time of the data stored at 901 and the current time is calculated, and the difference is constant for a certain period of time. If there is a time difference of x seconds or more, the data determined to be duplicated data is discarded and output to another device,
If the time is less than x seconds, the data is not erased and step 80
Return to the process of performing the next data collection in 2.

According to the present embodiment, when the monitoring control device connected to the recording device becomes abnormal, the other monitoring control devices store the recording data until the recording device is switched. This has made it possible to prevent loss of recorded data.

According to the embodiment of FIG. 1 described above, switching of a plurality of monitoring control devices 103, 104, 105 using a switch 102 will be described, and in FIG. 2, switching using a management device 201 will be described. However, the switching unit 102 may be manually switched by a human system.

When switching the recording device 101 manually,
When the monitoring control device connected to the recording device becomes abnormal, the abnormality is determined by the priority determination process of 501 and the abnormality determination process of 701, and the recording start command 504 is given to the recording process 801. The data storage is started in step 807 of the process 801. When it is confirmed in step 808 that the recording device is switched, a process of announcing a message, display, alarm, or the like to switch the switch 102 (step 810) is performed. If this is done, the recording device can be shared, and the loss of the recorded data can be prevented.

The method described in each of the above descriptions is as follows.
As a program that can be executed by a computer, for example, the program can be written on a recording medium such as a magnetic disk, an optical disk, or a semiconductor memory and applied to various devices, or transmitted to a communication medium and applied to various devices. The computer that realizes the central device reads the program applied to the recording medium, and executes the above-described processing by controlling the operation of the program.

[0048]

As described above, according to the present invention, 1
When one recording device is used by a plurality of monitoring and control devices from a given monitoring and control device with a switch, if the connected monitoring and control device becomes abnormal and various data collection processes cannot be performed, the remaining Switching to a normal monitoring control device, and when switching, unnecessary recording data is not recorded and output,
Also, in order to prevent data loss in recording output, it is possible to share the recording device, prevent duplication of recording data and prevent data loss, and apply it to a system of ordinary-usual system. In addition to improving the performance, the software and hardware of the monitoring and control device can be further simplified.

[Brief description of the drawings]

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

FIG. 2 is a configuration diagram showing another embodiment.

FIG. 3 is an example of a priority table used for determining a priority.

FIG. 4 is a flowchart showing the contents of a determination process of the management device.

FIG. 5 is a flowchart showing the contents of a priority determination process of the monitoring control device.

FIG. 6 is a flowchart showing the contents of a determination process of a switch.

FIG. 7 is a flowchart showing the contents of an abnormality determination process.

FIG. 8 is a flowchart showing the contents of a recording process.

FIG. 9 is a flowchart showing processing contents of another embodiment of the recording processing.

[Explanation of symbols]

 101 Recording device 102 Switch 103 Monitoring control device 1 104 Monitoring control device 2 105 Monitoring control device n 201 Management device 301 Example of priority table

Claims (10)

[Claims] 1. A monitoring control device for monitoring and controlling a facility to be monitored or an entire system and collecting various data resulting therefrom, and a recording device for recording the collected various information. In the supervisory control system, one recording device is provided for a plurality of supervisory control devices so as to be switchable, and when a supervisory control device connected in advance becomes abnormal, it is switched to another normal supervisory control device. A monitoring and control system, comprising: a unit that does not output unnecessary recording data at the time of switching; and a unit that prevents data omission of the recording output. 2. The supervisory control system according to claim 1, further comprising a management device that manages the switch according to the priority of the supervisory control device. 3. The monitoring control system according to claim 1, wherein the order is set in advance to the monitoring control device, and when the monitoring control device connected to the recording device becomes abnormal, the order is determined according to the determined order. A monitoring control system, comprising: means for switching a monitoring control device that records data. 4. The monitoring control system according to claim 1, wherein when a monitoring control device connected to the recording device becomes abnormal, it is determined whether data has been input to all the monitoring control devices. A monitoring control system comprising means for switching the monitoring control device in order from the monitoring control device to which data has been input. 5. The monitoring control system according to claim 1, wherein when the monitoring control device connected to the recording device is normal, the other monitoring control device not connected to the recording device is controlled by software. A monitoring control system comprising means for not destroying or storing recorded data. 6. The monitoring control system according to claim 1, wherein when the monitoring control device connected to the recording device is normal, the other monitoring control device not connected to the recording device is an imaginary device. A monitoring and control system comprising means for outputting recording data to the system. 7. The monitoring control system according to claim 1, wherein when the monitoring control device connected to the recording device becomes abnormal, another monitoring control device stores the recording data until the recording device is switched. A supervisory control system comprising: 8. The monitoring control system according to claim 7, wherein when the recording data is stored, when the monitoring control device connected to the recording device becomes abnormal, the monitoring control is performed by another monitoring control device. A monitoring control system comprising means for saving a time difference until the device is determined to be abnormal from data that has been traced back to a time determined to be abnormal. 9. The monitoring control system according to claim 1, wherein the recording device is manually switched, and when the monitoring control device connected to the recording device becomes abnormal,
Message to switch to another normal monitoring and control unit
A monitoring and control system comprising means for making an announcement by display, alarm, or the like. 10. A recording medium in which a control program for switching a plurality of monitoring control devices to one recording device by a computer and commonly using the recording device is recorded, wherein one recording device is provided for a plurality of monitoring devices. A function for switching to another normal monitoring and control device when a monitoring and control device connected in advance becomes abnormal, a function for not recording and outputting unnecessary recording data at the time of switching, and a recording output A computer-readable recording medium recording a program for executing a function of preventing data loss.