JPH1115515A - Simulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simulator which can improve and test a remote monitoring control terminal without affecting the on-line operation of facilities. SOLUTION: This simulator consists of a host computer (simulation system computer) 2, a medium computer 6 and a remote monitoring control terminal simulation computer 7 which simulates the processing of a remote monitoring control terminal equipment 92 included in a remote monitoring control terminal part 9. For instance, when the equipment 92 of the part 9 is set as a control part to undergo a simulation test, the control signal sent from the computer 2 is outputted to the equipment 92 as an on-line control signal via the computer 6. Meanwhile, the on-line monitoring information is fetched by the computer 2 from the equipment 92.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simulator, and more particularly to a simulator used for a simulation of a confirmation test accompanying renovation of equipment to be controlled and monitored.

[0002]

2. Description of the Related Art As a conventional simulator, Japanese Patent Application No.
Japanese Patent Application Laid-Open No. 102571/102571 discloses a device simulation operation using software separated from actual equipment for test confirmation. That is, the simulation is performed separately from the online system and the simulation system.

[0003]

According to the conventional simulator, in the case of renewal or abolition of the equipment to be controlled and monitored, even if the confirmation test is performed by simulation, the confirmation test online may extend to a plurality of controlled sites. However, when the test is performed by the operational system due to the operation of the equipment, there is a possibility that the preliminary arrangement of the test system and an error in the test procedure may affect the online operation of the equipment. In addition, it is necessary to conduct online tests after replacing the equipment constants with new ones after revising the equipment to be controlled and monitored. If there are any defects in the new equipment constants, the equipment constants before the change are restored. Work had to be performed, and there was a possibility of affecting online equipment operation until the restoration work was completed.

An object of the present invention is to provide a simulator capable of repairing and testing a remote monitoring control terminal without affecting on-line equipment operation.

[0005]

In order to achieve the above object, the present invention provides a simulation computer as a host computer, a middle computer connected to the simulation computer, the simulation computer and a central computer. A remote monitoring and control terminal simulation computer connected to the middle computer and simulating a process of a remote monitoring and control terminal in at least one controlled station connected to the middle computer via a communication line; When at least one of the stations is designated as a test controlled site to be simulated, a control signal functioning as an online control signal is output from the simulation system computer to a remote monitoring control terminal of the test controlled site, The online monitoring information from the remote monitoring and control terminal of the test controlled site is simulated by the simulation. It has been in the simulator to perform the capture and process the emissions-based computer.

According to this configuration, at the time of a simulation test, an online control signal is output from the simulation system computer to the remote monitoring control terminal of the designated controlled site,
The collection of online monitoring information from the remote monitoring control terminal is processed by the simulation computer. As a result, without affecting online equipment operation,
The control signal output and the monitoring information collection can be performed online only with the controlled place specified in the simulation environment, and the accuracy and reliability of the monitoring and the control test are improved.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In the figure, “remote control terminal” is an abbreviation for “remote monitoring control terminal”. FIG. 1 shows an embodiment of a simulator according to the present invention. The host computer (online computer) 1 and the host computer (simulation computer) 2 are both a local area network (hereinafter, referred to as a local area network).
3 and LAN4.
An operation terminal 5 for monitoring and control is connected to the LAN 3,
The middle computer 6 and the remote monitoring control terminal simulation computer 7 are connected to N4. In the middle calculator 6,
A remote monitoring control terminal unit 9 is connected via communication lines 8a, 8b, 8c. The remote monitoring and control terminal 9 is connected to the communication line 8a.
1. A remote monitoring and control terminal 92 of the controlled place B connected to the communication line 8b, and a remote monitoring and control terminal 93 of the controlled place C connected to the communication line 8c. Although FIG. 1 shows an embodiment in which computers are divided for each function, the computer may be constituted by one or a plurality of computers. Host computers 1 and 2, remote control terminal simulation computer 7,
At the time of automatic control (or at the time of control by manual operation) according to a program stored in each of the monitoring control operation terminals 5, the control signal is transmitted through the middle computer 6.
The remote monitoring and control terminal 9 which is output to the remote monitoring and control terminal 9 of the controlled place where the controlled equipment is located and receives this control signal, determines the controlled equipment within the controlled facility in accordance with the content of the control signal. Manipulate. The content of the control signal is obtained by coding a controlled station number, a control type, a control direction (such as on / off), and a simulation determination mode.

FIG. 2 shows the configuration of the middle computer 6. The middle-level computer 6 has a central processing unit 61 at its core. The common bus 65 has a main storage device 62, an external storage device 63,
Each of the communication control devices 64a and 64b is connected.
The communication control device 64a and the remote monitoring control terminal unit 9 are connected by a communication line 8, and the communication control device 64b has a host computer 1,
2 and remote control terminal simulation computer 7 are LAN4
Connected through.

FIG. 3 is a flow chart showing the processing in the middle computer 6 when outputting a control signal (in the figure, "remote control terminal" is an abbreviation for "remote monitoring control terminal"). When the control signals are received from the host computers 1 and 2, it is determined whether the simulation determination mode included in the received signals is online or simulation (step 3).
01). If it is determined that the mode is the simulation mode, the control information of the controlled object of the test target is referred to in the main storage device 62 (hereinafter, referred to as “test controlled site setting information”). It is determined whether or not there is a setting (hereinafter, referred to as “test controlled place”) (step 302), and if it is determined that there is no setting, a simulation control signal is output to the remote monitoring and control terminal simulation computer 7 ( Step 303) On the other hand, if the online mode is determined in step 301, the test controlled station setting information in the main storage device 62 is referred to and the test controlled station is set as in the simulation mode. (Step 305) If there is no setting, an actual control signal is output to the remote monitoring control terminal unit 9 (Step 30).
4). If it is determined in step 305 that there is a setting, the process ends. Step 302: If it is determined that there is a setting,
The processing of step 304 is performed, and all processing ends.

[0010] The setting of the test controlled site can be set on the screen of the operation terminal 5 for monitoring and control, and the setting state can be confirmed on the display screen of the display of the operation terminal 5 for monitoring and control. Accordingly, it is possible to determine that the test controlled site is mixed in the system state of online operation, and it is possible to prevent the operator from making an erroneous determination. The remote monitoring and control terminal unit 9 collects information on the operation and state change of the equipment to be controlled and monitored in the test controlled place where the equipment is installed, and the operation and state change of the equipment by interlocking with other controlled places. , The intermediate computer 6 through the communication line 8 as state information
Send to When receiving the monitoring information from the remote monitoring and control terminal 9, the middle computer 6 refers to the setting information of the test controlled place on the main storage device 92 and determines whether or not the test controlled place is the test controlled place. In the case of the test controlled station, the controlled station number, the monitored information type, the state change direction (such as ON or OFF) and the simulation determination mode are coded and added to the contents of the monitoring information and transmitted to the host computers 1 and 2. Remote control terminal simulation computer 7
When the monitoring information is received from the server, the control station number, the monitoring information type, the state change direction (on, off, etc.), the simulation mode, and the like are coded and added to the contents of any monitoring information, and transmitted to the host computer.

FIG. 4 is an explanatory diagram showing switching of equipment constants (in the figure, “remote control terminal” is an abbreviation for “remote monitoring control terminal”). Here, the equipment constant refers to a type and number of equipment of a controlled place to be monitored and controlled, and a constant that defines how to monitor and control each equipment. This equipment constant has a plurality of planes (“1 plane” to “n plane”) (a plane refers to a memory plane, but is a storage unit). You can choose. However, in the actual operation, the equipment constant can be selected on any surface in the simulation system, but is fixedly selected only in the active system (“one surface” in FIG. 4) in the online system. The upper computers 1 and 2 determine the simulation determination mode of the monitoring information received from the middle computer 6.
If in online mode, monitor and control processing is performed using the currently operating equipment constant "1" (active system),
In the simulation mode, the monitoring control process is executed using the equipment constant (any one of a plurality of planes) after the target equipment is renewed or abolished. Thus, as a result of being able to select from several types of equipment constants in the simulation environment, the test can be performed effectively.

Next, a specific example will be described. Here, it is assumed that the equipment is updated in the remote monitoring control terminal 93 of the controlled place C, and the description will be made with reference to the explanatory diagram of FIG. The test procedure in the present invention is as follows. Procedure 1: The equipment constant of the host computer 2 (simulation system) is changed to a new one (the controlled plant C is changed). Step 2: An operation test is performed on the host computer 2 (simulation system). Step 3: The host computer 2 (simulation system) sets a test control station for the controlled site C, and performs an operation test with the actual controlled site. In this procedure 3, the control signal output from the higher-level computer 2 of the simulation system is controlled by the controlled station
Is transmitted to the remote monitoring control terminal 93. Control signals are transmitted to the remote monitoring and control terminal simulation computer 7 for the controlled sites A and B (remote monitoring and control terminals 91 and 92) for which the test controlled sites are not set. Step 4: Renew the equipment constant (active system) of the host computer 1 (online system). Step 5: Start operation on the host computer 1 (online system).

Here, as an example of the automatic control which is a test item, there is a reclamation circuit for feeding equipment at a DC feeding substation (controlled station) for electric railway. When a fault such as an overload occurs in the feeder section between two substations, the two substations work together to open (disconnect) the equipment that constitutes the feeder section. However, the state of the failure is determined, and the power is re-input (input) after a predetermined time from the host computer of the controlled place. In order to confirm that the equipment is reclosed, the remote monitoring control terminals 91 and 92 of the controlled sites A and B are turned on in advance by the remote monitoring control terminal simulation computer 7, and the remote monitoring control terminals of the controlled site C are At 93, the equipment is turned on (on) by an on-line control signal, and then the remote monitoring and control terminal 93 is opened (off) by the test operation at the controlled site C and the overload relay operation state is set as online monitoring information as a middle computer. Send to 6. At the same time, the remote monitoring control terminal simulation computer 7 controls the remote monitoring control terminals 91, 91 of the controlled sites A and B.
Opening (off) of 92 and communication interruption (opening (off) of equipment by interlocking with an adjacent substation) receive relay operating state information is transmitted to the middle computer 6.

In the middle computer 6, the monitoring information from the controlled stations A, B, and C is added to the simulation mode to be transmitted to the upper computer 2 and transmitted to the upper computer 2. Upon receiving the monitoring information, the host computer 2 of the simulation system,
The fault condition is determined, and a control signal for turning on the remote monitoring control terminals 91 to 93 of the controlled sites A, B, and C is transmitted to the middle computer 6 in the simulation mode. The middle-level computer 6 sends control signals to the controlled stations A and B to which the test controlled stations are not set to the remote monitoring control terminal simulation computer 7, and simulates them at the remote monitoring control terminal simulation computer 7. The control process is executed, and a control signal to the controlled site C in which the setting of the test controlled site is performed is transmitted to the remote monitoring and control terminal 93 of the controlled site C, where the control of the controlled device is actually performed. Execute. The remote monitoring control terminal simulation computer 7 creates monitoring information as a response to the simulated control at the controlled sites A and B, and the remote monitoring control terminal 93 at the controlled site C creates the monitoring information as a response to the actual control of the device. Then, each is transmitted to the middle computer 6. In the middle computer 6, the monitoring information from the controlled stations A, B, and C is added to the simulation mode for transmission to the upper computer 2 and transmitted to the upper computer 2. As described above, the host computer 2 confirms a series of failure occurrence states, execution of device reclosure, and information on response monitoring.

The host computer 2 (simulation computer) assigns equipment constants for defining monitoring and control operations separately from the online system, so that when operating in the simulation system, it can be operated with the equipment constants. When the actual control signal is transmitted to the remote control terminal of the controlled site after the setting of the test controlled site is performed, since the processing is executed by the host computer 2, the operation is performed with the new equipment constant.
Performing the monitoring control test with the setting of the test controlled station means that the online monitoring control test can be performed with new equipment constants. When this test is completed, the new equipment constants are assigned to the host computer 1 (online computer). The operation is guaranteed even if it is reflected on the computer. In addition, the controlled sites where the operation test of the device is actually performed can be narrowed down, and a test system (a group of controlled sites to be tested) can be constructed by a simulation system to simulate the operation.

Here, for comparison with FIG. 5, a case where a simulation is performed by the conventional technique under the configuration of FIG. 1 will be described with reference to FIG. 6 (in the figure, "remote control terminal" is " Remote monitoring control terminal "). The test procedure in this case is as follows. Also in this case, it is assumed that the equipment is updated in the remote monitoring control terminal 93 of the controlled place C. Step 11: The equipment constant of the host computer 2 (simulation system) is changed to a new one (the controlled plant C is changed). Step 12: An operation test is performed on the host computer 2. Step 13: Renew the equipment constant (active system) of the host computer 1 (online system). Step 14: The host computer 1 performs an operation test with the actual controlled site. Step 15: Start operation on the host computer 1 (online system). In the procedure 2 of FIG. 6, the control signal output from the host computer 2 through the route (i) in the figure is transmitted to the remote monitoring control terminal simulation computer 7 via the middle computer 6 and simulated by the computer 7. The monitoring information is transmitted to the host computer 2 via the middle computer. In the procedure 4 of FIG. 6, the control signal output from the host computer 1 through the route of FIG. 6 (ii) is transmitted to the remote monitoring control terminal unit 9 via the middle computer 6, and the state change of the control target equipment is performed. Computer 6 as monitoring information
Is transmitted to the host computer 1 (online system) via

In the operation test of the host computer 1 in FIG. 6, on-line connection is required for the controlled sites A, B, and C, and personnel arrangement to the controlled sites A, B, and C, and arrangement for stopping the equipment operation. Etc. are also required at three places. In other words, when a confirmation test of automatic control is performed, it is necessary to arrange for a test at a controlled site without equipment update other than a controlled site with equipment update. On the other hand, in the present invention described with reference to FIG. 5, at the time of a simulation test, the online control signal is output from the simulation system computer to the remote monitoring and control terminal of the designated controlled site, and the remote monitoring and control The collection of online monitoring information is processed by a simulation computer, and control signal output / monitoring information collection processing is performed for a controlled station other than the designated one with a remote monitoring control terminal simulation computer 7 simulating the remote control terminal. Since the simulation is performed, the simulation does not affect the facility operation online.

[0018]

As described above, according to the present invention, during a simulation test, an online control signal is output from a simulation system computer only to a remote monitoring control terminal of a controlled site designated as a test object, and the remote monitoring control terminal The online monitoring information is collected from the computer by the simulation computer, so online control can be performed only with the controlled plant specified in the simulation environment without affecting online equipment operation. Signal output and monitoring information collection can be performed, and the accuracy and reliability of monitoring and control tests are improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a simulator according to the present invention.

FIG. 2 is a block diagram showing a detailed configuration of a middle computer in FIG. 1;

FIG. 3 is a flowchart showing a process in a middle computer when a control signal is output.

FIG. 4 is an explanatory diagram showing switching of equipment constants according to the present invention.

FIG. 5 is an explanatory diagram showing a processing flow when updating equipment in the remote monitoring control terminal of the controlled place C in FIG. 1;

FIG. 6 is an explanatory diagram showing a processing flow when a simulation is performed by the conventional method under the same conditions as in FIG. 5;

[Explanation of symbols]

 Reference Signs List 1 upper computer (online computer) 2 upper computer (simulation computer) 3, 4 LAN 5 operation terminal for monitoring and control 6 middle computer 7 remote monitoring and control terminal simulation computer 8a, 8b, 8c communication line 9 remote monitoring and control terminal Unit 91, 92, 93 Remote monitoring and control terminal

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Naohiko Yamamori 5-2-1, Omika-cho, Hitachi City, Ibaraki Prefecture Within Hitachi Information & Control Systems Co., Ltd.

Claims (4)

[Claims] 1. A simulation computer as a host computer, a middle computer connected to the simulation computer, and a simulation computer and a middle computer connected to the simulation computer via a communication line to the middle computer. A remote monitoring control terminal simulation computer simulating a process of a remote monitoring control terminal in at least one controlled station, wherein at least one of the controlled stations is designated as a test controlled station to be simulated. At this time, a control signal functioning as an online control signal is output from the simulation system computer to the remote monitoring control terminal of the test controlled place, and the online monitoring information from the remote monitoring control terminal of the test controlled place is output. A simulation system which takes in the simulation system computer and performs processing. Lator. 2. The simulation computer has a plurality of equipment constants that define the type and number of equipment in the controlled place, how to monitor and control the equipment, and the like. 2. The simulator according to claim 1, wherein an operation test of the test controlled site is performed by designating. 3. The medium-level computer outputs a control signal received from the higher-level simulation system computer as an online control signal to a remote monitoring and control terminal of the test controlled site, and receives the control signal from the remote monitoring and control terminal. 2. The simulator according to claim 1, wherein the online monitoring information is transferred to the upper simulation computer. 4. The remote supervisory control terminal simulation computer transmits a control signal received from the simulation computer via the intermediate computer to each of the controlled stations not set as the test controlled station, 2. The simulator according to claim 1, wherein monitoring information simulated for the controlled sites is output to the simulation computer via the middle computer.