JPH03283995A - Centralized monitor controller - Google Patents

Abstract

PURPOSE:To relieve the load of a CPU section and to prevent the speed of data processing of monitor items and a CRT display section even when a state change of the monitor item takes place concentratingly in a short period by adding a state change detection processor section under the management of the CPU section to the system. CONSTITUTION:Remote monitor information transferred as a bit pattern from a remote monitor controller 9a is read by a CPU section 1 via a remote monitor controller interface section 7 and sent to a state change detection processor section 2. The processor section 2 compares the remote monitor information with preceding remote monitor information stored in a storage section 3 to detect a monitor items having a state change and updates the preceding remote monitor information stored in the storage section 3 into up-to-date remote monitor information. Moreover, the processor section 2 sends information such as the name of monitored station subject to state change, the name of monitor item an the status of a state change to the CPU section 1. Thus, the processing of the CPU section 1 is the data processing except the detection processing of the state change of the monitor items and the display on the CRT display section 4 and the print output processing in the printer print section 5 only.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a centralized monitoring and control device, and in particular, to
The present invention relates to a centralized monitoring and control device that processes data in a U section, displays it on a CRT display section, and prints out data from a printer printing section.

[Conventional technology]

Conventionally, a centralized monitoring and control device receives remote monitoring information from a remote monitoring and control device placed at a monitored station in a remote location, processes this data, and displays it on a CRT display or prints it from a printer's printing section. It has been used to centrally monitor the status of equipment in remote locations by printing it out.

FIG. 2 is a block diagram showing the system configuration of a conventional centralized monitoring and control device.

n remote monitoring and control devices 9a and 9b are connected to the central monitoring and control device via communication lines.

Inside the centralized monitoring and control device, a CPtJ section 11 and a storage section 3. CRT display section 4. Printer printing section 5. The keyboard section 6 and the remote monitoring and control device interface section 7 are connected by a data bus 8 used as a transmission path for various information.

The n remote monitoring and control devices 9a and 9b always transfer their respective remote monitoring information to the centralized monitoring and control device.

The centralized monitoring and control device sequentially receives and processes remote monitoring information from the n remote monitoring and control devices 9a and 9b.

There are two main methods for transmitting remote monitoring information from a remote monitoring control device:

(1> For each monitored station, create a bit pattern by correlating the status of the monitored item (for example, normality and lightning) of the monitored item with the on and off of one bit of the digital signal, and then convert the remote monitoring information in the form of a bit pattern. The data is repeatedly and continuously transferred to the central monitoring and control equipment.

(2) When a change in the status of a monitored item is detected for each monitored station, the time of occurrence of the status change of the monitored item, the station name of the monitoring station where the status change occurred, the name of the monitored item and its status, etc. are used as information. The remote monitoring information contained therein is transferred in the form of a digital code from the remote monitoring and control device to the central monitoring and control device.

In any of the above cases, the conventional centralized monitoring and control device shown in FIG. The CPU section 1 performs all the processing up to
It is processed with 1.

A case where method (1) is used will be described below.

The CPU section 11 having one CPU reads the remote monitoring information received by the remote monitoring and control device interface section 7 from the remote monitoring and control device 9a, and compares it with the previous remote monitoring information stored in the storage section 3. A monitoring item whose state has changed is detected, and the previous remote monitoring information stored in the storage unit 3 is updated to the latest remote monitoring information.

When a monitored item whose status has changed is detected, information such as the name of the monitored station whose status has changed, the name of the monitored item, and the status change situation is converted into image monitoring information and text monitoring information within the CPU section 11. , are stored in the storage unit 3. CPU section 11
processes the image monitoring information to create CRT image monitoring information, and provides the CRT image monitoring information to the CR7 display section 4 to display images of the status of the monitored equipment of the monitored station.

The CPU section 11 further reads operation information inputted from the keyboard section 6 by the operator of the central monitoring control device in order to edit the character monitoring information, edits the character monitoring information stored in the storage section 3, and edits the character monitoring information. It is displayed on the CR7 display section 4 as character monitoring information, or printed out on the printer printing section 5 as printer character monitoring information.

As described above, all processes such as data processing of various information, image display on the CRT section, and print output from the printer section are performed by one CPU built in the CPU section 11.

Remote monitoring information from the remote monitoring and control device 9b is also processed in the same manner as above.

[Problem that the invention seeks to solve]

In the conventional centralized monitoring and control device described above, in order to detect an item in which a state change has occurred, the central monitoring and control device side detects the bit pattern of the digital signal that is repeatedly and continuously transferred from the remote monitoring and control device. A change in the bit pattern is detected by comparing it with the previously transferred bit pattern.

If changes in the status of monitoring items occur intensively in a short period of time, C
The PU unit spends most of its time detecting changes in the status of monitoring items, and the process of detecting this status change is
This will place a heavy burden on the PU department.

For this reason, data processing to convert remote monitoring information into image monitoring information and text monitoring information, and CR from image monitoring information.
Data processing for converting to T-image monitoring information and data processing for editing character monitoring information and converting it to CRT character monitoring information and printer character monitoring information result in a decrease in processing speed. There is a problem in that the display speed decreases.

One way to solve this problem is to use a CPU section with high processing speed in order to shorten the processing time for detecting changes in the status of monitored items, but this has the problem of increasing the cost of the device.

An object of the present invention is to provide an inexpensive dedicated processor that performs distributed processing for detecting changes in the status of monitored items without having to provide an expensive CPU unit with high processing power, so that changes in the status of monitored items are concentrated in a short period of time. It is an object of the present invention to provide a centralized monitoring control device that does not reduce the speed of data processing of monitored items and the speed of a CRT display unit even if a certain event occurs.

[Means for solving problems]

The centralized monitoring and control device of the present invention includes a remote monitoring and control device interface section that receives monitoring information from n (n is a positive integer) remote monitoring and control devices, and a data transfer unit for the monitoring information.
A CPU section that performs evening processing, a storage section that stores the monitoring information, and a state change item that is determined by comparing the monitoring information with the old monitoring information stored in the storage section under the control of the CPU section. a state change detection processor unit that detects the monitoring information, a CRT display unit that displays the monitoring information, a printer printing unit that outputs the monitoring information, and a keyboard unit that inputs operation information for editing the monitoring information. and a data bus used as a transmission path for the monitoring information and operation information.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the system configuration of an embodiment of the present invention.

In FIG. 1, n remote monitoring and control devices 9a and 9b
is connected to the remote monitoring and control device interface unit 7 via a communication line. Inside the centralized monitoring and control device, there are a C-PU section 1 and a state change detection processor section 2. Storage part 3. CR7 display section 4, printer printing section 5. The keyboard section 6 and the remote monitoring and control device interface section 7 are connected by a data bus 8 used as a transmission path for various information.

In FIG. 1, the remote monitoring and controlling device interface section 7 receives remote monitoring information transferred as a bit pattern from the remote monitoring and controlling device 9a. The 010 unit 1 reads this remote monitoring information and transmits it to the state change detection processor unit 2 under the control of the 010 unit 1.

The state change detection processor section 2 compares the remote monitoring information received from the 010 section 1 with the previous remote monitoring information stored in the storage section 3, and detects a monitoring item whose state has changed. , the previous remote monitoring information stored in the storage unit 3 is updated to the latest remote monitoring information. When a monitored item whose state has changed is detected, the state change detection processor section 2 transmits information such as the name of the monitored station whose state has changed, the name of the monitored item, and the status of the state change to the 010 section 1.

The 010 unit 1 converts the transmitted information into image monitoring information and text monitoring information and stores them in the storage unit 3. Further, the 010 unit 1 processes the image monitoring information to create CR7 image monitoring information, and displays the status of the monitored equipment of the monitored station on the CR7 display unit 4.

Furthermore, the 010 unit 1 reads operation information inputted into the keyboard unit 6 by the central monitoring control device operating personnel to edit character monitoring information, edits the character monitoring information stored in the storage unit 3, It is displayed on the CR7 display section 4 as character monitoring information, or printed out on the printer printing section 5 as printer character monitoring information.

As mentioned above, the state change detection processor section 2 processes the state change of the monitoring item of the monitored station by comparing the bit pattern transferred as remote monitoring information with the bit pattern transferred last time. Detection. Even if the state change detection processor section 2 is under the control of the 010 section 1, it performs the above processing without placing much burden on the 010 section 1.

Therefore, the processing of 010 part 1 is limited to data processing excluding processing for detecting changes in the state of monitored items, display on the CR7 display section 4, and printout processing on the printer printing section 5, and changes in the state of monitored items. The data processing load when data occurs intensively in a short period of time is significantly lighter than in the conventional case.

〔Effect of the invention〕

As explained above, the present invention has the advantage of adding a state change detection processor section under the control of the CPU section.
Status change detection processing, which was a big burden on the PU section @
The data processing is removed from the CPU section, making it possible to reduce the load on the CPU section, and data processing of various monitoring information of the centralized monitoring control device, CR7 image monitoring information on the R7 display section and C
This has the effect of improving the processing speed of displaying RT character monitoring information, etc.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the system configuration of an embodiment of the present invention, and FIG. 2 is a block diagram showing the system configuration of a conventional example. 1.11...CPU unit, 2...State change detection processor unit, 3...Storage unit, 4...
...CRT display section, 5...Printer printing section,
6...Keyboard section, 7...Remote monitoring and control device interface section, 8...Data bus, 9a, 9b...Remote monitoring and control device.

Claims (1)

[Claims] a remote monitoring and control device interface unit that receives monitoring information from n (n is a positive integer) remote monitoring and control devices; a CPU unit that performs data processing of the monitoring information; and a storage unit that stores the monitoring information. , a status change detection processor unit that is under the control of the CPU unit and detects a status change item by comparing the monitoring information with old monitoring information stored in the storage unit; and a status change detection processor unit that displays the monitoring information. A CRT display section, a printer printing section for outputting the monitoring information, a keyboard section for inputting operation information for editing the monitoring information, and a data bus used as a transmission path for the monitoring information and operation information. A centralized monitoring and control device characterized by comprising: