KR101186754B1 - Event generator test apparatus of RTU in SCADA system - Google Patents

Abstract

The remote small device event generation test device of the SCADA system is proposed to set the operating environment such as similar phenomenon and serious error that can occur during the operation of power equipment, and to generate various contact pulses and transmit them to the remote small device according to the set environment. do. The proposed remote device event generation test apparatus of the SCADA system is a remote device event generation test apparatus of the SCADA system for testing the driving state of the remote device after the production of the remote device of the SCADA system. Receives environmental information about the environment that occurs during the operation of the system, generates an event signal based on the environmental information, receives status information that is a response signal to the event signal, analyzes whether or not an error occurs in the remote device, An environment setting device for outputting status information of the device and whether an error occurs; And generating a control signal based on the event signal received from the environment setting device and transmitting the control signal to the remote device, and receiving a response signal for the control signal from the remote device to the status information including the driving state of the remote device. And an event generating device for converting and transmitting the converted state information to the environment setting device.

Description

Event generator test apparatus of RTU in SCADA system

The present invention relates to a remote small device event generation test device of the Skada system, and more particularly, to the remote small device during the factory test or field test (new, expansion construction) after the production of the remote small device (RTU) of the Skada system. The present invention relates to a remote device event generation test apparatus of a SCADA system that generates an event corresponding to the same environment as the actual operation of the remote device to test the accuracy of hardware wiring and software configuration.

SCADA system is an industrial automation system. It is widely known in the related art as a system that allows remote devices to detect the status of a number of on-site facilities and transmits them to a remote central control unit (SCADA host) and allows proper control from the central control unit. . In the power system, SCADA system is a power automation system that acquires information such as monitoring and measuring power facilities of 765KV, 345KV and 154KV substations and controls the power facilities through the acquired information.

In case of expanding the SCADA system or reinforcing the function due to the new SCADA system, new power facilities, etc., the event interlocking test to test the accuracy of hardware connection and software configuration of the remote device of the SCADA system is conducted. Do it.

Conventionally, the event interlock test for actual power equipment monitoring interlock is performed by manually controlling jumper cables for the terminal interlock terminal block for the event interlock test of the remote small device. That is, about 1,500 times (2 times for each 750 points) per remote device at the time of new construction, and about 300 times (2 times for each 150 points) per remote device at the time of expansion (ie, monitoring, control, and measurement). ).

In the conventional remote device event interlocking test, the operator performs the event interlocking test by shorting or disconnecting the bolt of the remote device terminal block to the jumper cable, so that some data is missing or the event occurrence interval is constant. There is a problem in that the accuracy of the interlock test is not made.

In addition, the conventional remote device event interlock test has a problem that it is difficult to accurately verify the accuracy and error of the SCADA system because the operator manually controls the terminal block terminal block of the remote device using a jumper cable.

In addition, in the conventional remote device event interlocking test, the operator manually controls the terminal block terminal block of the remote device by using a jumper cable, and thus, a similar phenomenon that may occur during actual power equipment operation through control of the event quantity and occurrence period There is a problem that is difficult to accurately reproduce the exact verification.

In addition, the conventional remote device event interlocking test is impossible to accurately test to analyze the cause of the serious error (for example, false alarm, missing event, etc.) that can occur during the operation of the SCADA system reliability of the SCADA system There is a problem that is lowered.

The present invention has been proposed to solve the above-described problems, and set the operating environment, such as a similar phenomenon, a serious error phenomenon that can occur during the operation of the power equipment, and generates a remote contact by generating various contact pulses according to the set operating environment It is an object of the present invention to provide a test apparatus for generating a remote device event of a SCADA system that transmits data to a device.

In order to achieve the above object, the remote small device event generation test apparatus of the Skada system according to the embodiment of the present invention is a system of the Skada system for testing the driving state of the remote small device after the production of the remote small device of the Skada system. In the remote small device event generation test apparatus, receiving environmental information on the environment generated when the remote small device is driven, generating an event signal based on the environmental information, and receiving status information that is a response signal to the event signal. An environment setting device that analyzes whether an error occurs in the remote device and outputs status information and whether or not the error occurs in the remote device; And generating a control signal based on the event signal received from the environment setting device and transmitting the control signal to the remote device, and receiving a response signal for the control signal from the remote device to the status information including the driving state of the remote device. And an event generating device for converting and transmitting the converted state information to the environment setting device.

The environment setting apparatus includes: an environment information input unit configured to receive environment information including a period of a pulse for generating an event, a number of occurrences, and monitoring / measurement / control command information for a test of a remote device; A test environment setting unit for generating test environment information of a remote device based on the environment information input through the environment information input unit; A control unit controlling to generate an event signal based on the test environment information generated by the test environment setting unit, and outputting the test environment information; And a signal generator for generating a signal including a pulse period, the number of occurrences, and monitoring / measurement / control command information based on the test environment information and transmitting the signal to the event generator.

The environment setting apparatus includes: a state information receiving unit receiving state information corresponding to a driving state of a remote small device from an event generating device; And an analysis unit for analyzing whether or not an error of the remote device is generated based on the state information from the state information receiving unit.

The analysis unit derives the corresponding error occurrence section when it is analyzed as an error occurrence in the remote device.

The environment setting device further includes an output unit for outputting test environment information of the remote element apparatus and outputting a driving state and an error occurrence zone of the remote element apparatus based on the state information.

The output generates an alarm if it is analyzed as a failure of the remote device.

The event generating apparatus includes: a signal input unit for receiving a signal for testing an event occurrence of a remote small device from an environment setting apparatus; An event setting unit for converting a signal input into a signal input unit into a protocol for transmitting to a remote device; An event generator for transmitting the protocol converted by the event setting unit to the remote device; A response signal receiver for receiving a response signal corresponding to the protocol transmitted from the event generator from a remote device; A conversion unit for converting the response signal of the remote small device received by the response signal receiving unit into state information including a driving state of the remote small device; And a state information transmitter for transmitting the state information converted by the converter to the environment setting apparatus.

The event setting unit is an HDLC, address, sequence monitoring / measurement / control command. Set the protocol to include LRC.

According to the present invention, the remote small device event generation test apparatus of the SCADA system generates various contact pulses and transmits them to the remote small device according to the operation environment such as similar phenomena and serious error that may occur during the operation of the power plant, thereby inspecting the factory. In addition, it is possible to accurately test the SCADA system by verifying the SCADA system error during the field inspection (that is, missing an event or a false alarm).

Incidentally, the remote device event generation test device of the SCADA system enables accurate testing of the remote device, thereby improving the reliability of the SCADA system.

In addition, the remote small device event generation test device of the SCADA system has the effect of identifying the correct failure section (for example, remote small device ~ communication line ~ main device) when analyzing the cause, such as missing event occurrence data of the substation facility.

1 and 2 are views for explaining a remote device event generation test apparatus of the Skada system according to an embodiment of the present invention.
3 is a block diagram illustrating an environment setting apparatus of FIGS. 1 and 2.
4 is a block diagram illustrating the event generating apparatus of FIGS. 1 and 2.
5 is a view for explaining the protocol of the remote device event generation test apparatus of the Skada system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention. . In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Hereinafter, with reference to the accompanying drawings, the remote small device event generation test apparatus of the Skada system according to an embodiment of the present invention will be described in detail.

1 and 2 are views for explaining a remote device event generation test apparatus of the Skada system according to an embodiment of the present invention. As shown in FIG. 1, the remote small device event generation test apparatus of the SCADA system sets up a test environment for an event generation test of the remote small device 300 and responds to the remote small device 300 according to the event occurrence test. Generates a predetermined event according to the test environment set in the environment setting device 100, and the test environment set in the environment setting device 100, and transmits to the remote small device 300 based on the signal and responds accordingly It is composed of an event generating device 200 for receiving a signal and providing it to the environment setting device (100). At this time, as shown in Figure 2, the remote small device event generation test apparatus of the Skada system may be connected to the remote small device 300 to which the plurality of power facilities 400 is connected to perform an event generation test.

3 is a block diagram illustrating an environment setting apparatus of FIGS. 1 and 2. As shown in FIG. 3, the environment setting device 100 includes an environment information input unit 110, a test environment setting unit 120, a control unit 130, a signal generator 140, a state information receiver 150, and an analysis. The unit 160 and the output unit 170 is configured.

The environment information input unit 110 receives a test environment of the remote device 300. That is, the environment information input unit 110 receives environment information including a cycle of a pulse for generating an event, a high state holding time, a number of occurrences, monitoring / measurement / control command information, and the like from the user. Here, the environmental information refers to information on the environment in which events such as similar phenomena and serious errors that may occur during the operation of the power plant, and the environment information input unit 110 is an event of various conditions that can occur during operation of the power plant from the user Receive environmental information.

The test environment setting unit 120 sets the test environment information of the remote device 300 based on the environment information input through the environment information input unit 110. That is, the test environment setting unit 120 includes the pulse period, the high state holding time, the number of occurrences, the monitoring / measurement included in the environment information from the environment information input unit 110 for the event occurrence environment such as a similar phenomenon or a serious error phenomenon. / Set the control command information to the test environment information. Here, the test environment setting unit 120 may store the test environment information set for each event generation environment.

The controller 130 controls the signal generator 140 to generate an event generation signal according to the test environment information (or event environment information) set by the test environment setting unit 120. That is, the controller 130 controls the signal generator 140 to generate a signal according to the pulse period, the number of occurrences, and the monitoring / measurement / control command information included in the test environment information (or event environment information). At this time, the controller 130 controls the output unit 170 to output the test environment information (or event environment information) to inform the operator about the event generation environment under test.

The controller 130 analyzes the state information received from the event generator 200 and controls the analyzer 160 to derive an error verification or error (or failure) generation section such as an event missing or a false alarm. At this time, the controller 130 controls the output unit 170 to output information on the error verification content and the error (or failure) generation section analyzed by the analysis unit 160.

The signal generator 140 generates an event by generating a signal including a pulse period, the number of occurrences, monitoring / measurement / control command information included in the test environment information (or event environment information) under the control of the controller 130. Send to device 200.

The state information receiver 150 receives state information corresponding to a driving state of the remote small device 300 from the event generator 200. Here, the state information receiver 150 receives state information corresponding to the driving state of the remote small device 300 with respect to the signal generated by the signal generator 140.

The analyzer 160 analyzes the state information received through the state information receiver 150 and the signal generated by the signal generator 140 to analyze the operation state of the remote device 300. That is, the analysis unit 160 compares the state information corresponding to the driving state of the remote small device 300 with respect to the event generation environment corresponding to the signal generated by the signal generator 140 to the normal state of the remote small device 300. Analyze whether drive, error (or failure) occurs. Here, when the error (or failure) of the remote device 300 occurs, the analysis unit 160 derives a section in which the corresponding error (or failure) occurs.

The output unit 170, under the control of the controller 130, the test environment information (or event environment information), the driving state of the remote device 300 (for example, normal driving, error (or failure) occurs), And display the error (or failure) occurrence area to inform the operator of the event occurrence test status (elapsed). Here, the output unit 170 may generate an alarm and notify an operator when an error (or failure) occurs in the remote device 300.

An example of setting the test environment in the environment setting device for the event occurrence test of the remote device is as follows.

First, an operator (or a manager) sets a point (for example, a relay of a remote small device) to apply a pulse through an environment setting device. For example, if an event test is performed at five points, the operator enters a start point. That is, the environment setting device outputs "start point num (2digit):" and requests the operator to input start points for five points to perform an event test, and the operator inputs a 2-bit binary number as the start point. At this time, if five points are arbitrarily determined, "01" should be entered. These five points have the same period and number of pulses. Here, the maximum number of points that can be used for the event test is 64.

Next, the operator sets one pulse period to apply to the point through the configuration device. At this time, the environment setting device sets 로 in units of time and receives a 6-bit binary number from the operator in a pulse period. For example, the configuration device outputs "pulse period (micro sec, 6digit):" to request the input of the pulse period. The operator enters "001000" to set to 1 ms.

Next, the operator sets a time to remain high in a given pulse period. At this time, the environment setting device sets ㎲ in units of time and receives a 6-bit binary number as a high state holding time from the operator. That is, the environment setting device outputs "pulse period (micro sec, 6digit):" to request the input of the pulse period, and the operator inputs the 6-bit binary number to input the high state holding time of the pulse.

Next, the operator inputs the number of pulses generated. At this time, the configuration device receives a 7-bit binary number as the number of pulses generated.

The event generator to be described later generates pulses according to the start point, pulse period, high state holding time, number of pulses, and the like set in the above-described steps, and inputs them to the remote device.

4 is a block diagram illustrating the event generating apparatus of FIGS. 1 and 2. As shown in FIG. 4, the event generator 200 may include a signal inputter 210, an event setup unit 220, an event generator 230, a response signal receiver 240, a converter 250, and status information. It is configured to include a transmitter 260.

The signal input unit 210 receives a signal corresponding to an event generation test environment from the environment setting device 100. That is, the signal input unit 210 repeatedly receives a signal including the monitoring / measurement / control command information from the environment setting apparatus 100 by the number of occurrences for each pulse period.

The event setting unit 220 generates a protocol for transmitting to the remote device 300 based on the signal received through the signal input unit 210. That is, the event setting unit 220 sets a sequence number (Seq No) and an error check byte (LRC) in the signal received through the signal input unit 210 and merges it with the monitoring / measurement / control command information to perform remote location. Create a protocol to send to the device 300.

The event generator 230 transmits the protocol generated by the event setup unit 220 to the remote device 300. That is, the event generator 230 transmits the protocol including the sequence number, the error check byte, and the monitoring / measurement / control command information to the remote device 300 for each pulse period.

The response signal receiver 240 receives a response signal for a protocol previously transmitted from the remote device 300. That is, the response signal receiver 240 receives a response signal for the monitoring / measurement / control command information included in the previously transmitted protocol from the remote device 300.

The conversion unit 250 converts the response signal received from the response signal receiver 240 into state information. That is, the conversion unit 250 converts the received response signal into state information which is the basis for analyzing the operation state of the remote small device 300.

The state information transmitter 260 transmits the state information converted by the converter 250 to the environment setting apparatus 100.

5 is a view for explaining the protocol of the remote device event generation test apparatus of the Skada system according to an embodiment of the present invention.

Conventionally, as shown in (a) of FIG. 5, a frame composed of HDLC Synch, Address, Data (monitoring / measurement / control command, and response to a higher command) and HDLC Synch is used for an event generation test of a remote device. Was used.

In the present invention, as shown in (b) of FIG. 5 for the event generation test of the remote device, the response to HDLC Synch, Address, Seq No (Sequence Number), Data (monitoring / measurement / control command, higher command) ), A frame consisting of Longitudinal Redundancy Check (LRC) and HDLC Synch is used. In other words, Seq No is placed on the transmission / reception frame to prevent data loss that may occur on transmission / reception, and error checking bytes (ie LRC; data from the address portion to the end of data at the end of the data). Add the function to check whether the frame received from the CCU is normal. Therefore, by checking the Seq No and error checking function, it is possible to receive the correct data and transmit it to the upper host.

As described above, the remote device event generation test apparatus of the SCADA system can control the event time and the number of consecutive event occurrences during the test of the remote device, and the test and power distribution stations (feeding stations according to similar situations as in operation) ) Accurate interlocking test between system and remote device is possible, and error checking of hardware and software of remote device is possible.

In addition, the remote small device event generation test device of the SCADA system generates various contact pulses according to the operating environment such as similar phenomena and serious error that may occur during the operation of the power plant, and transmits them to the remote small device 300, Error verification (ie missing events, false alarms, etc.) of the SCADA system at the time of inspection and field inspection has the effect that the SCADA system can be accurately tested.

Incidentally, the remote small device event generation test device of the Skada system is able to accurately test the remote small device 300 has the effect of improving the reliability of the Skada system.

In addition, the remote small device event generation test device of the Skada system has an effect that can determine the correct failure section (for example, remote small device 300 ~ communication line ~ main device) when analyzing the cause, such as missing event occurrence data of the substation facility. .

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but many variations and modifications may be made without departing from the scope of the present invention. It will be understood that the invention may be practiced.

100: environment setting device 110: environment information input unit
120: test environment setting unit 130: control unit
140: signal generator 150: status information receiver
160: analysis unit 170: output unit
200: event generating device 210: signal input unit
220: event setting unit 230: event generating unit
240: response signal receiver 250: converter
260: status information transmitter 300: remote device

Claims (8)

delete In the remote device event generation test apparatus of the SCADA system for testing the remote device operation state of the SCADA system,
Error in the remote device is received by receiving environment information on an environment generated when the remote device is driven, generating an event signal based on the environment information, and receiving status information that is a response signal to the event signal. An environment setting device for analyzing whether or not and outputting status information and an error occurrence status of the remote device; And
Generates a control signal based on the event signal received from the environment setting device and transmits the control signal to the remote small device, and receives a response signal to the control signal from the remote small device to include the driving state of the remote small device. And an event generator for converting the converted state information and transmitting the converted state information to the environment setting device.
The environment setting device,
An environment information input unit for receiving environment information including a period of a pulse for generating an event, a number of occurrences, and monitoring / measurement / control command information for a test of the remote device;
A test environment setting unit generating test environment information of the remote device based on the environment information input through the environment information input unit;
A control unit controlling to generate an event signal based on test environment information generated by the test environment setting unit, and outputting the test environment information; And
And a signal generator for generating a signal including a pulse period, the number of occurrences, and monitoring / measurement / control command information based on the test environment information and transmitting the signal to an event generator. Test device for generating remote device events of the system. The method according to claim 2,
The environment setting device,
A state information receiver for receiving state information corresponding to a driving state of a remote small device from the event generating device; And
And an analysis unit for analyzing whether or not an error occurs in the remote device based on the state information from the state information receiver. The method according to claim 3,
The analysis unit,
The remote small device event generation test apparatus of the Skada system, characterized in that to derive the corresponding error occurrence section when the analysis of the error of the remote small device. The method of claim 4,
The environment setting device,
Outputting the test environment information of the remote device, and generates a remote device device event of the SCADA system, characterized in that further comprising an output unit for outputting the driving state and the error occurrence zone of the remote device based on the status information. Test equipment. The method according to claim 5,
The output unit is a remote device event generation test device of the Skada system, characterized in that for generating an alarm if the analysis of the remote device failure occurs. The method according to claim 2,
The event generating device,
A signal input unit for receiving a signal for an event generation test of the remote device from the environment setting device;
An event setting unit for converting a signal input to the signal input unit into a protocol for transmitting to the remote device;
An event generator for transmitting the protocol converted by the event setting unit to the remote device;
A response signal receiver for receiving a response signal corresponding to the protocol transmitted from the event generator from the remote device;
A conversion unit for converting a response signal of the remote small device received by the response signal receiving unit into state information including a driving state of the remote small device; And
And a status information transmitter for transmitting the status information converted by the converter to the environment setting device. The method of claim 7,
The event setting unit,
HDLC, address, sequence monitoring / measurement / control commands. Remote small device event generation test device of the SCADA system, characterized in that the protocol setting including the LRC.

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