JP3392718B2 - Simulator - Google Patents

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 the modification and elimination of equipment subject to control and monitoring.

[0002]

2. Description of the Related Art As a conventional simulator, Japanese Patent Application No.
No. 102571, a device simulation operation is performed by software separated from the actual equipment for test confirmation. That is, the simulation is performed by separating the online system and the simulation system.

[0003]

According to the conventional simulator, in the case where the facility to be controlled and monitored is modified or abolished, even if the confirmation test is performed by simulation, the online confirmation test then spreads over multiple controlled stations. , When the test was conducted by the operation system due to the operation of the equipment, the advance arrangement of the test system and the error of the test procedure could affect the equipment operation online. In addition, it is necessary to perform the online test after replacing the equipment constants with new equipment after the control and monitoring target equipment has been replaced, and if there is a defect in the new equipment constants, restore the equipment constants before the change. Work was required, and there was a possibility that online facility operation would be affected until the restoration work was completed.

It is an object of the present invention to provide a simulator capable of repairing and testing a remote monitoring control terminal without affecting online facility operation.

[0005]

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

According to this structure, during the simulation test, an online control signal is output from the simulation computer to the remote monitoring control terminal of the designated controlled place,
The collection of online monitoring information from the remote monitoring control terminal is processed by the simulation computer. As a result, without affecting the facility operation online,
It becomes possible to output the control signal and collect the monitoring information online only with the designated controlled place under the simulation environment, and the accuracy and reliability of the monitoring and the control test are improved.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION 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. Both the upper computer (online computer) 1 and the upper computer (simulation computer) 2 are local area networks (hereinafter,
(Referred to as “LAN”) 3 and LAN 4.
An operation terminal 5 for monitoring and control is connected to the LAN 3 and
A middle computer 6 and a remote monitoring control terminal simulation computer 7 are connected to N4. In the middle computer 6,
The remote monitoring control terminal unit 9 is connected via the communication lines 8a, 8b, 8c. The remote monitoring control terminal unit 9 is the remote monitoring control terminal unit 9 of the controlled station A connected to the communication line 8a.
1, the remote monitoring control terminal 92 of the controlled station B connected to the communication line 8b, and the remote monitoring control terminal 93 of the controlled station C connected to the communication line 8c. Note that FIG. 1 shows a configuration in which a computer is divided for each function, but it may be configured with one or a plurality of computers. Host computer 1,2, remote terminal simulation computer 7,
And, at the time of automatic control according to the program stored in each of the monitoring control operation terminals 5 (or at the time of control by manual operation), the control signal is transmitted through the intermediate computer 6.
The remote monitoring control terminal unit 9 that outputs the control signal to the remote monitoring control terminal unit 9 of the controlled station where the controlled facility is located receives the control signal from the remote monitoring control terminal unit 9 in the controlled station according to the content of the control signal. Manipulate. The content of the control signal is coded of the controlled station number, the control type, the control direction (ON, OFF, etc.), and the simulation determination mode.

FIG. 2 shows the configuration of the middle computer 6. The middle-level computer 6 has a central processing unit 61 as its core, and a common bus 65 thereof 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 the communication line 8, and the communication control device 64b is connected to the host computer 1,
2 and remote control terminal simulation computer 7 is LAN 4
Connected through.

FIG. 3 is a flow chart showing the processing in the middle-level computer 6 when a control signal is output (in the figure, "distance control terminal" is an abbreviation for "remote monitoring control terminal"). When the control signal is received from the host computer 1 or 2, it is determined whether the simulation determination mode included in the received signal is online or simulation (step 3).
01). When the simulation mode is determined, the setting information of the controlled station to be tested in the main storage device 62 (hereinafter referred to as “test controlled station setting information”) is referred to, and the controlled target of the tested object is controlled. It is determined whether or not there is a setting of a place (hereinafter, referred to as "test controlled place") (step 302). When it is determined that there is no setting, a simulated control signal is output to the remote monitoring control terminal simulation computer 7 ( On the other hand, when the online mode is determined in step 301, the test controlled station setting information in the main memory 62 is referred to, and the test controlled station is set, as in the simulation mode. 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 process of step 304 is executed, and all the processes are completed.

The setting of the controlled station can be set on the screen of the monitor / control operating terminal 5, and the setting state can be confirmed on the display screen of the monitor / control operating terminal 5. As a result, it is possible to determine that the test controlled stations are mixed in the online system state, and it is possible to prevent the operator from making an incorrect decision. The remote monitoring control terminal unit 9 collects information on the operation and state change of the equipment to be controlled and monitored in the test controlled station in which it is installed, and the operation and state change of the equipment by interlocking with other controlled stations. , The medium computer 6 through the communication line 8 as status information
Send to. When the middle computer 6 receives the monitoring information from the remote monitoring control terminal unit 9, it refers to the setting information of the test controlled station on the main storage device 92 to determine whether or not it is the test controlled station. If it is a test controlled station, the controlled station number, monitoring information type, state change direction (ON, OFF, etc.) and simulation determination mode are coded and added to the contents of the monitoring information and sent to the host computer 1, 2. Remote control terminal simulation computer 7
When the monitoring information is received from, the controlled station number, the monitoring information type, the state change direction (ON, OFF, etc.), the simulation mode, etc. are coded and added to the content 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 constants refer to the types and the number of equipments in the controlled station to be monitored and controlled, and constants that define how to monitor and control each equipment. This equipment constant has multiple surfaces ("1 surface" to "n surface") (a surface is a memory plane, but it is a storage unit), and it is suitable for both online and simulation systems depending on the application. You can choose. However, in the actual operation, the selection of the equipment constants can be made on any surface in the simulation system, but in the online system, only the active system (“one surface” in FIG. 4) is fixedly selected. The upper-level computers 1 and 2 determine the simulation determination mode of the monitoring information received from the middle-level computer 6.
If it is in online mode, the equipment constant “1 side” (current system) currently in operation is used to execute the monitoring control process,
In the simulation mode, the monitoring control process is executed by using the equipment constant (any one of a plurality of surfaces) after the target equipment is abolished. As described above, the equipment constants in the simulation environment can be selected from several types, and as a result, the test can be effectively performed.

Next, a specific example will be described. Here, assuming that the equipment is updated in the remote monitoring control terminal 93 of the controlled station C, description will be given 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 updated (the controlled station C is changed). Step 2: Perform an operation test on the host computer 2 (simulation system). Step 3: The host computer 2 (simulation system) sets the test control station for the controlled station C and conducts an operation test with the actual controlled station. In this procedure 3, the control signal output from the high-order computer 2 of the simulation system passes through the middle-level computer 6 and the controlled station C where the test controlled station is set is set.
Is transmitted to the remote monitoring control terminal 93. Control signals are transmitted to the remote monitoring control terminal simulation computer 7 for the controlled stations A and B (remote monitoring control terminals 91 and 92) to which the test controlled station is not set. Step 4: Update the equipment constants (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 automatic control which is a test item, there is a reclosing circuit for feeding equipment in a DC feeding substation for electric railway (controlled location). When the power supply equipment re-closed circuit causes an overload or other failure in the power supply section between two substations, both substations work together to open (disconnect) the equipment that constitutes the power supply section. However, the failure situation is judged and the computer is re-input (turned on) after a fixed time from the host computer of the controlled station. In order to confirm the reclosing of the equipment, the remote monitoring control terminals 91 and 92 of the controlled stations 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 station C are set. In 93, the device is turned on (turned on) by an online control signal, and thereafter, the remote monitoring control terminal 93 is opened (turned off) by the test operation at the controlled place C and the overload relay operating state is used as the online monitoring information. Send to 6. At the same time, the remote monitoring control terminal simulation computer 7 allows the remote monitoring control terminal 91 of the controlled stations A and B,
Open (off) of 92 and disconnection of communication (open (off) of equipment by interlocking with an adjacent substation) Send the reception relay operation state information to the intermediate computer 6.

The middle-level computer 6 adds a simulation mode for transmitting to the host computer 2 to the monitoring information from the controlled stations A, B, and C, and sends it to the host computer 2. The simulation-based upper-level computer 2 that has received the monitoring information
The failure condition is judged and a control signal for turning on (turning on) the remote monitoring control terminals 91 to 93 of the controlled stations A, B and C is transmitted to the middle-level computer 6 in the simulation mode. From the middle-level computer 6, a control signal to the controlled stations A and B where the test controlled station is not set is transmitted to the remote monitoring control terminal simulation computer 7 and simulated by the remote monitoring control terminal simulation computer 7. The control processing is executed, and the control signal to the controlled station C where the setting of the controlled station is set is transmitted to the remote monitoring control terminal 93 of the controlled station C, where the control of the controlled device is actually performed. Run. The remote monitoring control terminal simulation computer 7 creates monitoring information as a response to simulated control at the controlled stations A and B, and the remote monitoring control terminal 93 at the controlled station C creates monitoring information as a response to actual control of the equipment. Then, each is transmitted to the intermediate computer 6. In this middle-level computer 6, a simulation mode for transmitting to the higher-level computer 2 is added to the monitoring information from the controlled stations A, B, C, and the information is transmitted to the higher-level computer 2. In this way, the host computer 2 confirms a series of fault occurrence states, execution of device reclosing, and response monitoring information.

Since the host computer 2 (simulation system computer) allocates equipment constants that regulate the operation of monitoring and control separately from the online system, it can be operated with the equipment constants when operating in the simulation system. When setting the test controlled station and transmitting the actual control signal to the remote control terminal of the controlled station, since the host computer 2 is performing the process, it is operating with the new equipment constant.
Performing the supervisory control test by setting the test controlled station means that the online supervisory control test can be performed with the new equipment constants. If this test is completed, the new equipment constants will be assigned to the host computer 1 (online computer). The operation is guaranteed even when reflected on the computer. Further, it is possible to narrow down the controlled stations that actually perform the operation test of the equipment, construct a test system (a controlled station group to be tested) with a simulation system, and 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, “distance terminal” is “ It is an abbreviation for "remote monitoring control terminal"). The test procedure in this case is as follows. Also in this case, the equipment is updated at the remote monitoring control terminal 93 of the controlled station C. Step 11: The equipment constant of the host computer 2 (simulation system) is made new (the controlled station C is changed). Step 12: Perform an operation test on the host computer 2. Step 13: The equipment constant (active system) of the host computer 1 (online system) is updated. Step 14: The host computer 1 carries out an operation test with an actual controlled station. 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 in the route (i) in the figure is transmitted to the remote monitoring control terminal simulation computer 7 via the middle computer 6, and is 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 upper-level computer 1 through the route of FIG. 6 (ii) is transmitted to the remote monitoring control terminal unit 9 via the middle-level computer 6, and the state change of the equipment to be controlled and monitored, etc. Intermediate computer 6 using as monitoring information
Is transmitted to the host computer 1 (online system) via the.

In the operation test of the host computer 1 in FIG. 6, it is necessary to connect online to the controlled stations A, B, and C, and the personnel allocation to the controlled stations A, B, and C, and the arrangement for stopping the facility operation are arranged. Etc. are also required in three places. In other words, when carrying out the confirmation test of automatic control, it is necessary to arrange for the test not only for the controlled stations with equipment renewal but also for the controlled stations without equipment renewal. On the other hand, according to the present invention described with reference to FIG. 5, during the simulation test, the simulation computer outputs the online control signal to the remote monitoring control terminal at the designated controlled station and outputs the online control signal from the remote monitoring control terminal. Processing of online monitoring information collection is processed by a simulation computer, and for control locations other than those designated, control signal output / monitoring information collection processing is performed with the remote monitoring control terminal simulation computer 7 that simulates the remote control terminal. Since this is done, there is no impact on the facility operation online during the simulation.

[0018]

As described above, the present invention outputs the online control signal from the simulation system computer only to the remote monitoring control terminal of the controlled place designated as the test object during the simulation test, and the remote monitoring control terminal Since the computer processing for collecting the online monitoring information from the computer is performed by the simulation computer, the online control can be performed only with the specified controlled station under the simulation environment without affecting the facility operation online. It becomes possible to output signals and collect monitoring information, which improves the accuracy and reliability of monitoring and control tests.

[Brief description of 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 the middle computer of FIG.

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

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

5 is an explanatory diagram showing a flow of processing when facility update is performed in the remote monitoring control terminal of the controlled station C in FIG. 1. FIG.

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

[Explanation of symbols] 1 Host computer (online computer) 2 Upper computer (simulation computer) 3,4 LAN 5 Monitoring and control terminal 6 Middle-order computer 7 Remote monitoring control terminal simulation computer 8a, 8b, 8c communication line 9 Remote monitoring and control terminal 91, 92, 93 Remote monitoring control terminal

Front page continuation (72) Inventor Naohiko Yamamori 5-2-1 Omika-cho, Hitachi-shi, Ibaraki Hitachi Information Control System Co., Ltd. (56) Reference JP-A-6-290187 (JP, A) JP-A-60 -247711 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G05B 23/00-23/02 G05B 15/00-15/02

Claims (2)

(57) [Claims] 1. A control signal for online transmission is sent from a high-order online computer to remote monitoring control terminals of a plurality of control stations, and monitoring information including control results from equipment connected to the terminals is sent online from this terminal. A simulator that performs simulation when modifying equipment connected to a remote monitoring control terminal in a remote monitoring control system that is received by a system computer and performs monitoring control. A simulation computer simulating a remote monitoring control terminal that can be selectively set with it, an intermediate computer interposed between each remote monitoring control terminal, the online computer, the simulation computer, and the simulation computer, and The intermediate computer uses the control signal from the host computer described above When it is detected that there is a signal from the simulation computer indicating the simulation mode, it is further checked whether or not there is a setting in the controlled station under test, and if it is set, a control signal is sent to the remote monitoring control terminal of the controlled station. Performs monitoring control of the feeding equipment, captures the response result and sends it to the above simulation computer, sends a control signal to the simulation computer if there is no setting, and the simulation computer monitors information based on the above response result when there is setting The remote monitoring terminal is simulated based on the control signal when there is no setting, and the resulting monitoring information is created, and the monitoring information is sent to the simulation computer through the intermediate computer. The simulation computer updates the equipment constants based on the monitoring information. Simulator. 2. The equipment constant is a constant that defines the type and number of equipment at the controlled station and how to monitor and control each equipment, and the equipment constant is stored in a memory,
The simulator according to claim 1, wherein the simulator can be selectively set by reading.