KR101569988B1 - System and method for inspecting nuclear power plant monitoring system - Google Patents

Abstract

The present invention relates to a power monitoring system for a power plant monitoring system, comprising: a signal output unit for outputting a simulation signal for inspection to a plant data collection system (PDAS, Plant Data Acquisition) (PMS) monitoring communication unit (PMCS, Plant Monitoring Computer System), a PMS check screen display unit for displaying the check status of the power plant system, and the simulated signal as the digital conversion value, Wherein the power plant monitoring computer system detects a request for the result value from the operation control unit, and outputs the result value to the plant monitoring computer system, And a PMCS operation unit for controlling the PMCS operation unit to be transmitted through the PMS check communication unit Power to start the plant monitoring system checks the system and method of operation.

Description

TECHNICAL FIELD [0001] The present invention relates to a system and method for monitoring a nuclear power plant monitoring system,

The present invention relates to a monitoring system and method for monitoring a nuclear power plant, and more particularly, to a nuclear power plant monitoring system checking system and a monitoring system for monitoring a power plant data collection system and a power plant monitoring computer system using simulation signals provided by a power plant monitoring system ≪ / RTI >

The plant monitoring system (PMS) of a nuclear power plant consists of a plant data acquisition system (PDAS) and a plant monitoring computer system (PMCS).

The plant data collection system signals the physical measurements (eg, analog and digital signals) collected from multiple lines of the plant to the plant's monitoring computer system, signaling the data needed by the plant.

The plant monitoring computer system processes, stores, processes, and processes the data collected from the plant data collection system, and processes the processed data to peripheral devices (eg, dozen plays, indicators and printers) To the operator.

Conventional plant monitoring computer systems provide processed data to operators, allowing them to verify the utilization and efficiency of nuclear power plants, and to prevent abnormalities that could lead to the shutdown of nuclear power plants.

In the prior art, a self-check was performed to evaluate the soundness of the nuclear power plant monitoring system, and the self-health check method of the power plant monitoring system of the nuclear power plant was checked using a passive method.

In the conventional passive method, a simulated signal was input to one point of the data collection system of the power plant to check the health of the monitoring system of the nuclear power plant, and the result of the simulated signal was checked in the power plant monitoring computer system.

That is, the conventional passive method is a method of confirming the result of the simulated signal, and it is difficult to use a wired communication method between a user who inputs a simulated signal and a user who confirms a simulated signal result (for example, an operator) .

In addition, since the conventional method processes the simulated signal based on the serial communication method, if one communication line fails, the integrity check of the power plant monitoring system of the nuclear power plant can not be performed until the communication line is restored.

Proceedings of the Korea Society for Simulation Technology, 2005, "Recommended for Virtual Simulation of Power Plant Surveillance System" Proceedings of the Korean Institute of Electrical Engineers Conference, "Design of Nuclear Data Acquisition System"

In an embodiment of the present invention, a simulation signal for checking the integrity of a power plant monitoring system of a nuclear power plant is output to at least one power plant system point included in the power plant data collection system (where points are input terminals to which simulated signals are input) A result value calculated through a power plant monitoring computer system that receives a result calculated from a power plant data collection system that calculates a digital conversion value corresponding to the output simulated signal and computes a result value corresponding to the output simulated signal, At least one of the computed data obtained by processing the computed result value is received, and at least one of the computed digital conversion value, the computed result in the power plant data collection system, and the computed data in the power plant monitoring computer system is compared, A system for checking the range of nuclear power plant monitoring system and its operation method The.

One embodiment of the present invention is to monitor the results of a simulated signal using communication through TCP / IP communication, serial communication and switching equipment, and to monitor a power plant data collection system and a power plant monitoring computer system using simulated signal results A monitoring system check system and an operation method.

In an embodiment of the present invention, when one communication line fails, even if the communication line is not restored, the existing serial communication method is used as spare communication to check the result of the simulation signal, System and Power Plant Monitoring Provides a monitoring system and operation method of a nuclear power plant monitoring system that checks the computer system.

The nuclear power plant monitoring system inspection system according to an embodiment of the present invention includes a signal output unit for outputting a simulation signal for inspection to a plant data collection system (PDAS, Plant Data Acquisition), and a result value corresponding to the output simulated signal At least one of the computed result values and the processed data calculated by processing the computed result values through a plant monitoring computer system (PMCS) that receives the computed result values from the power plant data collection system to be computed, A PMS check communication unit for receiving the power simulation data, a PMS check screen display unit for displaying a check status of the power plant data collection system and the power plant monitoring computer system, and a digital conversion value corresponding to the output simulated signal, Value and the calculated result in the power plant data collection system and the power plant model And an arithmetic control unit for comparing at least one of the calculated machining data in the cutting computer system to check an error range and controlling an indication of the check status, wherein the power plant monitoring computer system receives the calculated result And a PMCS operation unit for detecting a request for at least one of the calculated data and the calculated machining data and for controlling the PMS communication unit to transmit the calculated result value corresponding to the request or the calculated machining data, The check screen display section displays the check status of at least one of the output simulated signal, the computed digital conversion value, the computed result value, and the computed processed data, and permits the error range and the digital conversion value Displays the normal range including possible errors.
The monitoring system of nuclear power plant monitoring system according to an embodiment of the present invention includes a PMS inspection system for outputting a simulation signal for inspection to a power plant data collection system and calculating a digital conversion value corresponding to the output simulated signal, A power plant data collection system for calculating a result value corresponding to the simulation signal and delivering the calculated result value to the plant monitoring computer system and the calculated result value to calculate processing data, And a power plant monitoring computer system for sensing a request for at least one of the computed result value and the computed machining data and controlling the computed result corresponding to the request or the computed machining data to be transmitted, The PMS checking system may be configured to send the output simulated signal to the power plant A PMS check communication unit for receiving at least one of the calculated result value and the calculated processed data from the power plant monitoring computer system, A PMS check screen display unit for displaying a check status and the digital conversion value corresponding to the output simulated signal, and for calculating the digital conversion value, the calculated result value in the power plant data collection system, And an operation control unit for checking an error range by comparing at least one of the calculated machining data and controlling an indication of the check status, wherein the power plant monitoring computer system processes the calculated result value, And the PMS check system A PMCS operation unit for detecting the request for at least one of the calculated result value and the calculated machining data, a PMCS operation unit for transmitting the calculated result value corresponding to the request or the calculated machining data to the PMS check system, And a PMCS screen display unit for displaying at least one of the calculated result data and the calculated processed data, wherein the PMS check screen display unit displays the calculated simulated signal, the calculated digital converted value, the calculated result value And displaying the check status for at least one of the computed machining data and displaying a normal range including an allowable error in the error range and the digital conversion value
A method for inspecting a monitoring system of a nuclear power plant according to an embodiment of the present invention includes a step of outputting a simulation signal for inspection to a power plant data collection system and a power data collection system for calculating a result value corresponding to the output simulated signal, Receiving at least one of the computed result value and the computed processed data by processing the computed result value through a power plant monitoring computer system receiving the computed result value, Comparing the computed digital conversion value with at least one of the computed result data in the plant data collection system and the computed data in the plant monitoring computer system to check the error range, Checking situation of collection system and computer monitoring system of power plant Wherein the power plant monitoring computer system senses a request for at least one of the computed result value and the computed machining data from the arithmetic and control unit and transmits the computed result data to the PMS communication unit, And outputting the calculated result data or the calculated processed data, wherein the step of displaying the check status is performed on at least one of the output simulated signal, the calculated digital converted value, the calculated result value, and the calculated processed data And displays a normal range including an allowable error in the error range and the digital conversion value.

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In an embodiment of the present invention, a simulation signal for checking the integrity of a power plant monitoring system of a nuclear power plant is output to at least one power plant system point included in the power plant data collection system (where points are input terminals to which simulated signals are input) A result value calculated through a power plant monitoring computer system that receives a result calculated from a power plant data collection system that calculates a digital conversion value corresponding to the output simulated signal and computes a result value corresponding to the output simulated signal, At least one of the computed data obtained by processing the computed result value is received, and at least one of the computed digital conversion value, the computed result in the power plant data collection system, and the computed data in the power plant monitoring computer system is compared, The range can be checked.

An embodiment of the present invention can check simulation result using communication through TCP / IP communication, serial communication and switching equipment, and check the power plant data collection system and power plant monitoring computer system using the simulation result .

In an embodiment of the present invention, when one communication line fails, even if the communication line is not restored, the existing serial communication method is used as spare communication to check the result of the simulation signal, System and plant monitoring computer systems can be checked.

1 is a block diagram showing a nuclear power plant monitoring system check system.
2 is a block diagram of a nuclear power plant monitoring system inspection system according to a first embodiment of the present invention.
3 is a block diagram of a monitoring system for monitoring a nuclear power plant according to a second embodiment of the present invention.
4 is a flowchart showing a method of checking a monitoring system of a nuclear power plant.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and accompanying drawings, but the present invention is not limited to or limited by the embodiments.

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. The terminology used herein is a term used for appropriately expressing an embodiment of the present invention, which may vary depending on the user, the intent of the operator, or the practice of the field to which the present invention belongs. Therefore, the definitions of these terms should be based on the contents throughout this specification.

1 is a block diagram showing a nuclear power plant monitoring system check system.

Referring to FIG. 1, the nuclear power plant monitoring system inspection system includes a PMS (Plant Monitoring System) inspection system 100, a PDAS (Plant Data Acquisition) 200, and a PMCS, System 300).

The PMS inspection system 100 outputs a simulation signal for inspection to the power plant data collection system 200, and computes the simulation signal as a digital conversion value. The simulated signal of the present invention may be a signal for checking the monitoring system of the nuclear power plant including the power plant data collection system 200 and the power plant computer system 300.

The power plant data collection system 200 collects the simulated signals output from the PMS inspection system 100 and calculates the collected simulated signals as result values. For example, the power plant data collection system 200 may collect systematic signals including signals from a fixed in-amp system (FIDAS) and inadequate core cooling monitoring system (ICCMS) signals.

In this case, the output simulated signal may be a signal in a form similar to the system signal collected in the power plant data collection system 200.

The plant monitoring computer system 300 receives the computed result values from the plant data collection system 200, detects requests for results from the PMS checking system 100, (100).

The plant monitoring computer system 300 can receive either the result computed from the plant data collection system 200 and the plant signal value using the opening signal through the A / D converter in the plant.

The PMS checking system 100 checks the error range by comparing the computed digital conversion value with the received value from the plant monitoring computer system.

According to one aspect of the present invention, the PMS inspection system 100 displays a check status of at least one of a simulation signal, a digital conversion value, and a result value, displays a normal range of an error range and a digital conversion value, May provide an interface for checking the collection system 200 and the plant monitoring computer system 300.

Hereinafter, a nuclear power plant monitoring system inspection system according to the present invention will be described in detail with reference to FIG. 2 to FIG.

2 is a block diagram of a nuclear power plant monitoring system inspection system according to a first embodiment of the present invention.

2, the nuclear power plant monitoring system (PMS) system 100 includes a signal output unit 110, a PMS check communication unit 120, a PMS check screen display unit 130, an operation control unit 140, .

The signal output unit 110 outputs a simulation signal for inspection to the power plant data collection system 200. Specifically, the signal output unit 110 outputs one or more simulated signals used as inputs to the power plant data collection system to a programmable logic controller (PLC), a program controlled interruption (PCI) It can be output from one point or multipoint using either one.

The output simulated signal of the present invention may be a signal for checking the monitoring system of the nuclear power plant including the power plant data collection system 200 and the power plant computer system 300 and may include a system signal collected in the power plant data collection system 200 It can be a signal in a similar form.

The plant data collection system 200 may collect systematic signals including signals from a fixed in-amp system (FIDAS) and inadequate core cooling monitoring system (ICCMS) signals.

The signal from the fixed amplifier can be a signal from a detector that is fixedly installed from underneath the reactor. The signal from the inadequate core cooling monitoring system can be a signal from a fixed core detector installed in the reactor core and a signal from a heated junction T / C) signal.

Further, the systematic signal and the simulated signal may be an analog signal including a current signal and a voltage signal, and may be a digital signal.

The power plant data collection system 200 is comprised of four Class 1E cabinets and three Non Class E1 cabinets, which can collect systematic signals and convert analog signals among the collected systematic signals into digital signals (A / D conversion) To the power plant computer system 300.

According to one aspect of the present invention, the power plant data collection system 200 can perform D / A conversion for the purpose of transmitting signals generated in the power plant monitoring computer system 300 to a display, a recorder, an alarm, and the like.

The PMS check communication unit 120 receives the result calculated by the power plant data collection system 200 on the basis of the output simulated signal through the power plant monitoring computer system 300.

The plant monitoring computer system 300 may receive either a result value from the plant data collection system 200 and a plant signal value using an opening signal at the plant through the A / D converter.

In addition, the plant monitoring computer system 300 generates and stores processed data such as processing, manipulation, calculation, and alarm for either the result value or the plant signal value, and transmits the resultant value, the plant signal value, (E.g., display, indicator, printer, etc.) of the monitoring computer system 300 to the operator and to the PMS check communication unit 120. [

In addition, the plant monitoring computer system 300 can be configured as a main computer and a secondary computer to ensure multiplicity, and the main computer can be operated during normal operation, and the secondary computer can be operated during normal operation like the main computer However, it may not transmit the results, plant signal values and processed data to the peripherals of the plant monitoring computer system 300.

The plant monitoring computer system 300 may also include input / output signal processing functions, alarm functions, application operating functions, data storage functions, operator interface functions, and maintenance and program development functions.

The input / output signal processing function may be a function of processing the opening signal, the simulated signal, the power plant signal value and the result value collected from the power plant data collection system, and the alarm function may be an input / output And may be a function of warning the abnormal state which may cause the stop of the nuclear power plant by referring to the value of the signal.

Application operating functions include nuclear reactor power plant (COLSS), control rod assembly (CEA) related monitoring program, zinon load and response balance program, reactor output reduction system CEA selection program, and plant performance evaluation program. And may be a function of operating a related program.

The data storage function may be a function to record, store and reproduce the input / output signal values in consideration of the time series according to the request of the operator, and the operation interface function may be a function to input / And an interface function including a search, trace and summary list function for the value of the output signal.

Maintenance and program development functions may be a function that provides a means to perform software maintenance and development to improve the performance of the plant monitoring computer system 300. [

The PMS check screen display unit 130 displays the check status of the power plant system.

According to one aspect of the present invention, the PMS check screen display unit 130 may display a check status of at least one of a simulation signal, a result value, a system signal, and a power plant signal value

In addition, the PMS check screen display unit 130 may provide an operator interface function and may provide a function of remotely controlling the power plant monitoring computer system 300. [

The operation control unit 140 computes a simulated signal as a digital converted value, outputs a simulated signal, displays an inspection status, and controls a request for a result value to the plant monitoring computer system 300.

The digital conversion value may be a value obtained by converting the simulation signal output from the signal output unit 110 through the A / D converter, and the resultant value may be a simulation signal collected from the power plant data collection system 200 through the A / It can be a converted value.

The power plant monitoring computer system includes a PMCS operation unit 330 that detects a request for a result value from the operation control unit 140 and controls the result value to be transmitted through the PMS check communication unit.

According to one aspect of the present invention, the operation control unit 140 can check the error range by comparing the calculated digital conversion value with a result value received from the plant monitoring computer system 300.

The PMS check screen display unit 130 displays a check status of at least one of a simulated signal, a digital converted value, and a result value, displays a normal range of an error range and a digital converted value, ) And the plant monitoring computer system (300).

In addition, the operation control unit 140 can control the accumulation of the history of the check status in the database, and manage the accumulated database as statistical data.

The power plant data collection system 200 according to an embodiment of the present invention may include a signal processing unit 210, a PDAS operation unit 220, and a PDAS communication unit 230.

The signal processing unit 210 may collect a simulated signal output from the PMS checking system.

According to one aspect of the present invention, the signal processing unit 210 may collect a systematic signal including a signal of a fixed in-amp system (FIDAS) and an inadequate core cooling monitoring system (ICCMS) signal.

The signal from the fixed amplifier can be a signal from a detector that is fixedly installed from underneath the reactor. The signal from the inadequate core cooling monitoring system can be a signal from a fixed core detector installed in the reactor core and a signal from a heated junction T / C) signal.

The systematic signal and the simulated signal may be an analog signal including a current signal and a voltage signal, and may be a digital signal.

The plant data collection system 200 is comprised of four Class 1E cabinets and three Non Class E1 cabinets to collect system signals.

The PDAS operation unit 220 can calculate a resultant value of the simulation signal collected based on the A / D converter, and calculate the systematic signal as a plant signal value.

The PDAS communication unit 230 can transmit the calculated result value to the power plant monitoring computer system 300.

According to one aspect of the present invention, the power plant data collection system 200 can perform D / A conversion for the purpose of transmitting signals generated in the power plant monitoring computer system 300 to a display, a recorder, an alarm, and the like.

The power plant monitoring computer system 300 according to an embodiment of the present invention may include a PMCS communication unit 310, a PMCS screen display unit 320, and a PMCS computing unit 330.

The PMCS communication unit 310 receives the calculated result value from the power plant data collection system 200, detects a request for the result value from the PMS checking system 100, and transmits the result value to the PMS checking system 100 .

According to one aspect of the present invention, the PMCS communication unit 310 receives the calculated power plant signal value from the power plant data collection system 200, detects a request for the power plant signal value from the PMS inspection system 100, To the PMS checking system 100.

The PMCS screen display unit 320 can display either the result value or the power plant signal value and the PMCS operation unit 330 can control the PMS inspection system 100 to detect the request for the result value.

According to one aspect of the present invention, the PMCS calculation unit 330 can control the generation and storage of processed data such as processing, operation, calculation, alarm, and the like, (For example, display, indicator, printer, etc.) of the power plant monitoring computer system 300 to the PMS checking system 100 To be transmitted.

3 is a block diagram of a monitoring system for monitoring a nuclear power plant according to a second embodiment of the present invention.

Referring to FIG. 3, the PMS check communication unit 120 of the PMS check system 100 in the monitoring system of the nuclear power plant surveillance system 100 uses the TCP / IP communication, the serial communication, Values from the plant monitoring computer system 300. [

More specifically, the PMS check communication unit 120 includes a serial communication method for directly connecting the power plant monitoring computer system 300, a TCP / IP communication method for providing a connection via a direct connection and a power plant data collection system 200, A hub and a bridge method for providing a switching device can be used, and a serial communication method can be used for spare communication.

FIG. 4 is a flowchart showing a method of checking a monitoring system of a nuclear power plant.

Referring to FIG. 4, in step 410, the monitoring method of nuclear power plant monitoring system outputs a simulation signal for inspection to a power plant data collection system.

The output simulated signal of the present invention can be a signal for checking a nuclear power plant monitoring system including a power plant data collection system and a power plant computer system.

The resultant value calculated in the power plant data collection system based on the simulated signal output in step 420 is received through the power plant monitoring computer system.

According to one aspect of the present invention, step 420 may be a step of receiving results from the plant monitoring computer system using either TCP / IP communications, serial communications, and communications via switching equipment.

The plant monitoring computer system of the present invention generates and stores process data, such as processing, manipulation, calculation, and alarm, and stores the result and processed data in a peripheral of the plant monitoring computer system (e.g., , Indicator, printer, etc.).

Further, in step 430, a check status of the power plant system is displayed, a simulated signal is computed as a digital converted value, an output of a simulated signal, an indication of a check status, and a request for a result value to the power plant monitoring computer system are controlled.

According to one aspect of the present invention, step 430 may be a step of displaying at least one of a simulation signal, a digital conversion value, a result value, an error range, and a normal range for the digital conversion value.

In step 440, a check status of the power plant system is displayed. According to one aspect of the present invention, step 430 may be a step of displaying at least one of a simulation signal, a digital conversion value, a result value, an error range, and a normal range for the digital conversion value.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

100: PMS inspection system
110: Signal output section
120: PMS inspection communication unit
130: PMS check screen display section
140:
200: Power Plant Data Collection System
210:
220: PDAS operation unit
230: PDAS communication section
300: Power plant monitoring computer system
310: PMCS communication section
320: PMCS screen display section
330: PMCS computing unit

Claims (12)

A signal output unit for outputting a simulation signal for inspection to a plant data collection system (PDAS, Plant Data Acquisition System);
(PMCS) that receives the calculated result value from a power plant data collection system that calculates a result value corresponding to the output simulated signal, and outputs the calculated result and the calculated result A PMS check communication unit for receiving at least one of the machining data calculated by processing the machining data;
A PMS check screen display unit for displaying a check status of the power plant data collection system and the power plant monitoring computer system; And
Calculating a digital conversion value corresponding to the output simulated signal, comparing the computed digital conversion value with the computed result value in the power plant data collection system and at least one of the computed data in the power plant monitoring computer system And an arithmetic control section for controlling the display of the check status,
Lt; / RTI >
Wherein the power plant monitoring computer system detects a request for at least one of the computed result value and the computed processing data from the operation control unit and transmits the calculated result value corresponding to the request or the computed processing A PMCS operation unit for controlling data to be transmitted
/ RTI >
Wherein the PMS check screen display unit displays the check status of at least one of the output simulated signal, the calculated digital converted value, the calculated result value, and the calculated processed data, and the error range and the digital converted value Indicating the normal range including the allowable error in
Nuclear Power Plant Monitoring System (PMS) Inspection System. delete delete delete A PMS check system for outputting a simulation signal for inspection to a power plant data collection system and calculating a digital conversion value corresponding to the output simulated signal;
A power plant data collection system for calculating a result value corresponding to the output simulated signal and delivering the calculated result value to a power plant monitoring computer system; And
Processing the calculated result values to compute processing data, detecting a request for at least one of the computed result values and the computed processing data from the plant monitoring system check system, A power plant monitoring computer system that controls the transmission of the resultant value or the calculated processed data
/ RTI >
The PMS inspection system
A signal output unit for outputting the output simulated signal to the power plant data collection system;
A PMS check communication unit for receiving at least one of the calculated result value and the calculated machining data from the power plant monitoring computer system;
A PMS check screen display unit for displaying a check status of the power plant data collection system and the power plant monitoring computer system; And
Calculating the digital conversion value corresponding to the output simulated signal, calculating at least one of the computed digital conversion value, the calculated result value in the power plant data collection system, and the calculated processing data in the power plant monitoring computer system And an arithmetic control unit for controlling the display of the check status,
/ RTI >
The plant monitoring computer system
A PMCS computing unit for computing the processed data by processing the calculated result value and detecting the request for at least one of the calculated result value and the calculated processed data from the PMS checking system;
A PMCS communication unit for transmitting the calculated result value corresponding to the request or the calculated processed data to the PMS checking system; And
A PMCS screen display unit for displaying at least one of the computed result value and the computed machining data,
Lt; / RTI >
Wherein the PMS check screen display unit displays the check status of at least one of the output simulated signal, the calculated digital converted value, the calculated result value, and the calculated processed data, and the error range and the digital converted value Indicating the normal range including the allowable error in
Nuclear power plant monitoring system check system. delete delete Outputting a simulation signal for inspection to a power plant data collection system;
The calculated result value and the calculated result value are processed through a power plant monitoring computer system that receives the calculated result value from a power plant data collection system that calculates a result value corresponding to the output simulated signal, ≪ / RTI >
Calculating a digital conversion value corresponding to the output simulated signal, comparing the computed digital conversion value with the computed result value in the power plant data collection system and at least one of the computed data in the power plant monitoring computer system Checking an error range; And
A step of displaying a check status of the power plant data collection system and the power plant monitoring computer system
Lt; / RTI >
Wherein the power plant monitoring computer system detects a request for at least one of the calculated result value and the calculated machining data from the operation control unit, and transmits the calculated result value corresponding to the request or the calculated machining data to the PMS communication unit Lt; / RTI >
Wherein the step of displaying the check status displays the check status of at least one of the output simulated signal, the calculated digital converted value, the calculated result value, and the calculated processed data, and the error range and the digital Indicating the normal range including the allowable error in the conversion value
How to check the monitoring system of nuclear power plants. delete delete delete A computer-readable recording medium having recorded thereon a program for performing the method of claim 8.

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