KR101469179B1 - System for diagnosing communication error of nuclear power plant simmulator - Google Patents

Abstract

The present invention relates to a system for diagnosing communications of a nuclear power plant simulator, and more specifically, to is a system for diagnosing communications of a nuclear power plant simulator, comprising multiple client terminals, multiple safety systems, multiple non-safety system, and server apparatus. The server apparatus includes a first server and a second server which store a dynamic model that simulates a nuclear power plant, perform a simulation of the overall phenomena in the nuclear power plant by executing the dynamic model, and output result data of the simulation, operation states of the nuclear power plant that is adopted for the dynamic model, and monitoring result data that is obtained by monitoring main devices and processors; and a field control processor which is connected to the multiple client terminals, the multiple safety systems, or the multiple non-safety systems via a communications network, and performs a communications network error diagnosing function for the multiple client terminals, the multiple safety systems, or the multiple non-safety systems. Therefore, it is possible to test and validate safety and reliability of a communications network of the nuclear power plant simulator by detecting errors in the communications network of the nuclear power plant simulator using an error diagnosing algorithm, and to present error information to a client or on a large-scale screen if the error is detected, thereby enabling an operator or a control room to cop with the error in the communications network.

Description

[0001] The present invention relates to a communication diagnostic system for a nuclear power generation simulator,

The present invention relates to a communication diagnosis system for a nuclear power generation simulator, and more particularly, to a communication diagnosis system for a nuclear power generation simulator capable of verifying and confirming the safety and reliability of a communication network through error diagnosis of a communication network of a nuclear power generation simulator .

Nuclear power plants usually consist of systems with more than 100 individual functions. These are largely nuclear steam supply systems (NSSS), secondary circulation cooling systems that deliver steam to generators, turbine generator systems that feed steam from secondary systems, Equipment.

The pressurized light water reactor type power plant, which is the main type of nuclear power plant in Korea, can be classified as a primary system including a reactor, a steam generator, a turbine, a secondary system including a generator and a condenser, Measurement control system, and other auxiliary systems.

The MMIS (Mna-Machine Interface System) of nuclear power plants is a concept that includes measurement control, MMI and ergonomics, and is recently used as a measurement control system for nuclear power plants. Nuclear Power Plant MMIS is a system corresponding to the brain and neural network of a nuclear power plant. It monitors and controls the operation status of a nuclear power plant, and performs safeguards to stop the reactor when an abnormal condition occurs. to be.

As the MMIS of a nuclear power plant is digitized, most of the surveillance, control and protection functions implemented in previous analog instruments and circuits are implemented as embedded software based on the hardware platform.

In order to ensure the safety of all power generation plants including nuclear power plants, and to improve the efficiency of operation and operation capacity of operators, a simulator for operator training is implemented so that operators can practice on many operations. It is also important to train the operating method of the power plant because it can cause serious accidents when the operator is stuck or improperly operated in operation of the instrumentation control system of the nuclear power plant.

For this purpose, workers are trained in the complete control method of the measurement control system through the nuclear power simulator simulating the measurement control system of the nuclear power plant for safer operation of the power plant.

However, the simulation applied to the nuclear power plant is developed as a software and is provided as one function applied to a large power plant system, and is configured to perform the operation related to the power plant operation by providing only the calculated result value.

The software of the simulator for the operator training is largely composed of a mathematical modeling program, a real-time execution program, a lecturer operator panel software, and a graphical user interface. The mathematical modeling program is a mathematical modeling of the steady state and transient state of a nuclear power plant. The real-time execution program allows the mathematical modeling program to be executed several times per second, so that the simulation of the nuclear power plant can be simulated in real time It will. The lecturer operator panel software handles the various commands required for the operation of the simulator. The graphical user interface utilizes powerful graphical tools to interface with variables in the graphical display and the simulation database.

However, it is important to verify and confirm the safety and reliability of the communication network applied to the measurement control system of the nuclear power plant through the nuclear power generation simulator. However, the error diagnosis of the communication network of the nuclear power generation simulator has not been properly performed.

Since it is most important that the safety and reliability of the communication network of a nuclear power plant is established, the nuclear power simulator uses a deterministic communication method with high reliability and compatibility. Since the deterministic communication method needs to transmit data within a limited time and a predictable time delay, the transmission capacity and the transmission delay time must be predicted in advance and the data must be processed by a predetermined method even when the prediction result is exceeded.

In addition, when an error occurs in the communication network of the nuclear power simulator, a data error, a failure of a transmission medium, a device failure, etc., must be turned off and then replaced with a new digital output module.

Conventionally, there has been proposed a technique for simulating nuclear power plant training simulator in order to cope with an urgent emergency and to improve accident prevention capability. However, since it does not diagnose communication network error of a nuclear power generator simulator, There is a problem that can not be confirmed (Korean Patent Publication No. 2013-0122853)

Meanwhile, in the conventional power plant simulation system, there has been proposed a technique of simulating a precise analysis model that can be used for power plant safety analysis or design in a plurality of client distributed model drive devices communicating data with the main server. However, Synchronization and real-time performance of the network can be obtained. However, as in the case of Korean Laid-open Patent Application No. 2013-0122853, there is a problem that the operator or the client can not confirm the error of the communication network (Korean Patent Publication No. 2007-0106232)

Korean Patent Laid-Open Publication No. 2013-0122853 entitled " Real-time Accident Simulation System and Method of Simulator for Training of Nuclear Power Plant " Korean Patent Publication No. 2007-0106232 "Power Plant Simulation System &

The present invention can verify and confirm the safety and reliability of a communication network of a nuclear power generation simulator by detecting an error in a communication network of a nuclear power generation simulator using an error diagnosis algorithm and display error information on a client or a large screen And a communication diagnosis system of a nuclear power generation simulator that can be provided.

Among the embodiments, the communication diagnosis system of a nuclear power generation simulator is a system for diagnosing a communication state of a nuclear power generation simulator including a plurality of client terminals, a plurality of safety systems, a plurality of non-safety systems, and a server device, The apparatus stores a dynamic model simulating a nuclear power plant, executes the dynamic model to simulate the phenomenon of the nuclear power plant in real time, and outputs the simulated simulation result data, the operating state of the dynamically modeled nuclear power plant, A first server and a second server for monitoring the performance of the processor and outputting monitoring result data; And a field control unit connected to the plurality of client terminals, a plurality of safety systems or a plurality of non-safety systems via a communication network, and performing a communication network error diagnosing function for the plurality of client terminals, the plurality of safety systems, And a shared memory for storing data of another client terminal and data of the other client terminal, wherein the plurality of client terminals include an application program for sharing data of the shared memory, The data sharing time with other client terminals is adjusted according to the importance of the data stored in the client terminal.

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Meanwhile, the field control processor receives state information data from the plurality of client terminals, a plurality of safety systems or a plurality of non-safety systems, receives control data for simulation from the server apparatus, A network switch module designed to transmit control data to the server device, a plurality of client terminals, a plurality of safety systems or a plurality of non-safety systems, respectively, and to design a redundant structure for preventing data errors in the communication network; And an error diagnosis module for executing an error diagnosis algorithm for detecting an error according to the data transmission rate or a communication node for the plurality of client terminals, the plurality of safety systems or the plurality of non-safety systems, and generating an error information signal .

Wherein the server device is interlocked with a large screen installed in a front direction of the plurality of client terminals to display an operation state of the nuclear power simulator and, when receiving the error information signal, Is displayed on a screen of a plurality of client terminals or a large screen.

Wherein the error diagnosis module comprises: a first diagnostic unit for performing a self-diagnosis of the field control processor to detect an error; A second diagnosis unit for detecting an error through error diagnosis of each of the plurality of client terminals in a state in which the connection between the network switch module and the plurality of safety systems and the non-safety systems is released; A third diagnostic unit for detecting an error through error diagnosis of each of the plurality of safety systems in a state in which the connection between the network switch module and the plurality of client terminals and the non-safety system is released; A fourth diagnostic unit for detecting an error through error diagnosis of each of the plurality of non-safety systems in a state in which the connection between the network switch module, the plurality of client terminals, and the safety system is released; And a controller for executing the error diagnosis algorithm to transmit diagnostic command signals to the first to fourth diagnostic units and to generate an error information signal according to an error detection result of the first to fourth diagnostic units .

Wherein the first diagnosis unit, the second diagnosis unit, the third diagnosis unit or the fourth diagnosis unit feed back the output values of the plurality of client terminals, the plurality of safety systems or the plurality of non-safety systems to the plurality of client terminals, Way communication or unidirectional communication by comparing the output value with the feedback value of the output value and detecting an abnormal state of the transmitting node or the receiving node according to a result of the comparison, do.

Meanwhile, the field control processor detects a communication node in which the error is detected among the communication nodes constituting the communication network, analyzes the correlation between the communication node in which the error is detected and the remaining communication nodes and the importance of the correlation The reliability of the communication node in which the error is detected and the communication node of the correlation are calculated and displayed.

In this case, the reliability of the communication node is calculated as one of a trusted state, an uncertain trust state, and an untrusted state.

The communication diagnosis system of the nuclear power generation simulator of the present invention can verify and confirm the safety and reliability of the communication network of the nuclear power generation simulator by detecting errors in the communication network of the nuclear power generation simulator by using the error diagnosis algorithm, And error information can be displayed on a client or a large screen when an error is detected, so that it is possible to quickly cope with a communication network error in an operator or a situation room.

1 is a view for explaining a communication diagnostic system of a nuclear power generation simulator according to an embodiment of the present invention.
2 is a block diagram illustrating the configuration of the field control processor of FIG.
3 is a block diagram illustrating the configuration of the error diagnosis module of FIG.
4 is a flowchart illustrating an error diagnosis algorithm of the error diagnosis module of FIG.

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

Meanwhile, the meaning of the terms described in the present invention should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

1 is a view for explaining a communication diagnostic system of a nuclear power generation simulator according to an embodiment of the present invention.

The main hardware platform that constitutes the MMIS of the nuclear power plant is the digital reactor which implements safety important function PLC (Programmable Logic Controller) in safety system, DCS (Distributed Control System) and nuclear power. The client terminal may be a communication device capable of network connection such as a desktop computer, a laptop computer, a smart phone, a tablet PC, and the like.

1, a communication diagnosis system of a nuclear power generation simulator includes a plurality of client terminals 10, a plurality of safety systems 20, a plurality of non-safety systems 30, a server device 40, To simulate the communication state of the nuclear power generation simulator.

The plurality of client terminals 10 include a shared memory (not shown) for storing the own data and the data of the other client terminals 10. At this time, the client terminal 10 has an application program for sharing data in the shared memory, and controls the data sharing time with other client terminals according to the importance of data stored in the shared memory through the application program.

The server device 40 uses the redundant server structure of the first server 41 and the second server 42 and uses the first server 41 with the first server 41 as the highest priority, The second server 42 is used when an error occurs in the second server 41.

This server device 40 transmits and receives information data and control data to and from a plurality of client terminals 10, a plurality of safety systems 20 or a plurality of non-safety systems 30 while performing a mathematical modeling function, And executes a program that executes the operation panel functions and the graphical user interface functions.

Therefore, the server device 40 stores the dynamic model simulating the nuclear power plant, executes the dynamic model to simulate the phenomenon of the nuclear power plant in real time, and outputs the simulation result data, the operation state of the dynamically modeled nuclear power plant, Monitors the performance of the processor and outputs the monitoring result data to the large screen 50 or the client terminal 10.

In addition, the server device 40 can display the operation status or error occurrence status of the nuclear power generation simulator on the large screen 50 installed in the front direction of the plurality of client terminals 10 through the graphic user interface.

The field control processor 45 is designed in a redundant switching structure and is connected to a plurality of client terminals 10, a plurality of safety systems 20 or a plurality of non-safety systems 30 via a communication network, And performs a network error diagnosis function for the node.

2 is a block diagram illustrating the configuration of the field control processor of FIG.

Referring to FIG. 2, the field control processor 45 includes a network switch module 210 and an error diagnosis module 220.

The network switch module 210 is designed in a duplex structure of the first network switch 211 and the second network switch 212 in order to establish a communication network in the form of a mesh network and to minimize data errors in the communication network, (Switched Control) method. The first network switch 211 and the second network switch 212 perform the same functions and functions.

The network switch module 210 receives information data from a plurality of client terminals 10, a plurality of safety systems 20 or a plurality of non-safety systems 30, And transmits the information data or control data to the server apparatus 40, the plurality of client terminals 10, the plurality of safety systems 20 or the plurality of non-safety systems 30, respectively.

The safety system 20 and the non-safety system 30 have a bidirectional communication port and a unidirectional communication port, and transmit and receive control data through the network switch module 210.

Each client terminal 10 receives data through the first network switch 211 and the second network switch 212, and outputs the data by voting the received data. If no data is received due to a failure of either the first network switch 211 or the second network switch 212, the client terminal 10 displays a network switch on which data is not received, on the screen.

Each of the client terminals 10 can transmit data to the first network switch 211, the second network switch 212 and the shared memory of the other client terminals 10. [ The server device 40 monitors data received through the first network switch 211 and the second network switch 212 from the first server 41 and the second server 42 and outputs the data.

The error diagnosis module 220 detects a communication error according to a data transmission rate or a communication node for a plurality of client terminals 10, a plurality of safety systems 20 or a plurality of non-safety systems 30, An error diagnosis algorithm is executed to detect an error to generate an error information signal. The error diagnosis module 220 executes an error diagnosis algorithm to check the status of the self-diagnosis, the client terminal 10, the safety system 20, and the non-safety system 30 at intervals of 50 ms.

The error diagnosis module 220 may include a first error diagnostic unit 221 connected to the first network switch 211 and a second error diagnostic unit 222 connected to the second network switch 212. In addition, the first network switch 211 and the first error diagnosis unit 221, the second network switch 212, and the second error diagnosis unit 222 may be formed as independent or integral units.

The server device 40 generates a display control signal so that error information corresponding to the error information signal is displayed on the screen of the plurality of client terminals 10 or the large screen 50 when the error information signal is received. At this time, the error information signal may include error information such as the communication node where the error occurred, the ID of the corresponding device, the error type, and the like.

3 is a block diagram illustrating the configuration of the error diagnosis module of FIG.

3, the error diagnosis module 220 includes a first diagnosis unit 310, a second diagnosis unit 320, a third diagnosis unit 330, a fourth diagnosis unit 340, a control unit 350, And a storage unit 360.

The first diagnostic unit 310 performs a self diagnosis on the error diagnosis algorithm or the field control processor 45 itself to detect an error.

The second diagnosis unit 320 diagnoses an error of the communication node for each of the plurality of client terminals 10 and detects an error. The second diagnosing unit 320 may be connected to the network switch module 210 and the plurality of client terminals 10 in a state in which the connection between the plurality of safety systems 20 and the non- Lt; RTI ID = 0.0 > a < / RTI >

The third diagnosis unit 330 diagnoses an error of the communication node for each of the plurality of safety systems 20 and detects an error. The third diagnosis unit 330 may detect an error for each of the safety systems 20 in a state where the connection between the network switch module 210, the plurality of client terminals 10 and the non-safety system 30 is released, Can be detected.

The fourth diagnosis unit 340 diagnoses an error of the communication node for each of the plurality of non-safety systems 30 and detects an error. The fourth diagnosis unit 340 may detect an error for each of the non-safety systems 30 in a state where the connection between the network switch module 210, the plurality of client terminals 10 and the safety system 20 is released, Can be detected.

The control unit 350 periodically executes an error diagnosis algorithm to transmit a diagnostic command signal to the first diagnostic unit 310, the second diagnostic unit 320, the third diagnostic unit 330 and the fourth diagnostic unit 340 And generates an error information signal according to the error detection result of the first diagnosis unit 310, the second diagnosis unit 320, the third diagnosis unit 330, and the fourth diagnosis unit 340. The control unit 350 stores the error detection result of each of the diagnostic units 310 to 340 and the error information corresponding to the error information signal in the storage unit 360.

The diagnostic command signal includes a reference diagnostic value and is sequentially transmitted to the first diagnostic unit 310, the second diagnostic unit 320, the third diagnostic unit 330, and the fourth diagnostic unit 340. Accordingly, each of the diagnosis units 310 to 340 can diagnose errors of the transmission node, the reception node, and the transmission rate based on the reference diagnostic value.

On the other hand, the second diagnosis unit 320 may feed back the output value of each client terminal 10 and input it to the corresponding client terminal 10 to calculate the feedback value of the output value. The second diagnosis unit 320 stores the feedback values of the output value and the output value in the storage unit 360, and then compares the feedback value of the output value with the feedback value of the output value. The second diagnosis unit 320 can detect an abnormal state of the transmitting node or the receiving node according to the comparison result, and can determine bidirectional communication or unidirectional communication with the corresponding client terminal 10.

The third diagnosis unit 330 and the fourth diagnosis unit 340 may also perform a bidirectional communication to the safety system 20 or the non-safety system 30 through error diagnosis through feedback of the output value, Or one-way communication.

The server device 40, the client terminal 10, the safety system 20 and the non-safety system 30 have a watchdog function and can detect an individual processor or a device to generate an alarm signal at the time of failure or operation stop .

4 is a flowchart illustrating an error diagnosis algorithm of the error diagnosis module of FIG.

Referring to FIG. 4, the error diagnosis module 220 sequentially generates a diagnostic command signal according to the error diagnosis algorithm in order of the first diagnostic unit 310, the second diagnostic unit 320, and the third diagnostic unit 330 And the fourth diagnosis unit 340. (S1) The diagnostic command signal can be changed in the order of transmission of the diagnostic command signal in accordance with the external command.

The error diagnosing algorithm is a self diagnosis of the error diagnosing module 220 by the first diagnosing unit 310 and the second diagnosing unit 320, the third diagnosing unit 330, An error of the communication node for each of the client terminal 10, the safety system 20 and the non-safety system 30 is detected through the control unit 340 (S2 to S4)

The error diagnosis algorithm checks whether the data transmission rate is 50 ms or less when no error is detected in the first to fourth diagnoses 310, 320, 330, and 340. (S5) As a result of the diagnosis, the error information signal of the error detection result of each communication node and the confirmation result of the transmission speed is transmitted to the first server 41. (S5, S6)

The first server 41 displays the status of the error information signal on the large screen 50 and each client terminal 10 if no error is detected through the self diagnosis. (S7, S8, S9) When an error is detected through the self-diagnosis, the server 41 transmits an error information signal to the second server 42. (S10)

If an error is not detected through the self-diagnosis, the second server 42 displays the state of the error information signal on the large screen 50 and each client terminal 10. (S9, S11, S12)

Meanwhile, the communication diagnosis system of the nuclear power generation simulator according to another embodiment of the present invention can display the reliability of the communication node on the client terminal 10 or the large screen 50.

The field control processor 45 has a plurality of client terminals 10, a plurality of safety systems 20 and a plurality of non-safety systems 30 which are components of a communication network as communication nodes, Specify information.

Then, the field control processor 45 detects the communication node whose error has been detected among the communication nodes using the error diagnosis algorithm, and analyzes the correlation between the detected communication node and the remaining communication nodes and the importance of the correlation .

That is, after setting the reference value for determining the correlation based on the communication history information, the field control processor 45 calculates the communication frequency information between the communication node and the communication node, the degree of importance or safety degree of the communicated data, To calculate the correlation between the communication nodes and the importance of the correlation.

The field control processor 45 calculates the reliability calculation value by reflecting the communication frequency information between the communication nodes 50% and 50% of the importance or safety of the data. The importance or safety of the data is converted into numerical values according to the level of the data can do. In addition, when calculating the importance of the correlation, the field control processor 45 sets the importance of the communication node related to the safety system to a high level in consideration of the characteristics of the nuclear power generation simulator, The importance of the communication node to the non-safety system can be set to a medium level. The importance of the correlation can be changed in accordance with the characteristics of the communication node, the communication data or the communication network in the lecturer's control panel or the like.

The field control processor 45 determines whether the reliability calculation value is greater than or equal to the reference value, the correlation of the 'close level', the 'normal level' correlation when the reliability value is approximate to the reference value, .

For example, when the client terminal 1 communicates with the safety system 2 and the non-safety system 1, the frequency of communication with the non-safety system 1 is five times a day, the importance or safety level of the data is' 2 is assumed to be 20 times a day, and the importance or safety level of the data is 'high' level.

In this case, if the field control processor 45 sets the reference value of the communication frequency information and the data level to '15' based on the communication history information, the field control processor 45 sets the correlation between the client terminal 1 and the non- , The importance of the correlation can be judged as a 'lower level'. Then, the field control processor 45 can determine that the correlation between the client terminal 1 and the safety system 2 is 'close level' and the importance of the correlation is 'higher level'.

Therefore, when an error is detected in the client terminal 1, the field control processor 45 displays the error information for the communication node of the client terminal 1, and transmits the communication to the client terminal 1, the safety system 2, and the non- The reliability of the node can be calculated and displayed on the other client terminal 10 and the large screen 50.

The field control processor 45 displays the reliability of the communication node having a high degree of correlation with the client terminal 1 and having a high correlation with the client terminal 1 as untrusted and indicates that the correlation with the client terminal 1 is normal, Is expressed as an uncertainty, and the reliability of the communication node, which is not closely correlated with the client terminal 1 and has a low importance of the correlation, is expressed as a trusted state.

Thus, the field control processor 45 indicates that the reliability of the client terminal 1 is untrusted and the reliability of the safety system 2 is also untrusted, while the reliability of the unsecured system 1 is unstable, it can be displayed as uncertain, and it can be displayed as a trust state for a communication node in which the correlation with the remaining client terminals 1 is not close to each other and the importance of the correlation is low.

In this way, the communication diagnosis system of the nuclear power plant simulator according to the embodiment of the present invention can automatically diagnose the faults control processor 45 including the network switch periodically by the error diagnosis algorithm, the client terminal 10, 20 and the non-secure system 30 and transmits the error information to the client terminal 10, the first server 41 and the second server 42 upon detection of an error, And the large screen 50 so that the error information can be displayed on the screen.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

10: client terminal 20: safety system
30: non-safety system 40: server device
45: field control processor 50: large screen
210: network switch module 220: error diagnosis module
310 to 340: First to fourth diagnostic units
350: control unit 360: storage unit

Claims (8)

A system for diagnosing a communication state of a nuclear power generation simulator including a plurality of client terminals, a plurality of safety systems, a plurality of non-safety systems, and a server apparatus,
Wherein the server apparatus stores a dynamic model simulating a nuclear power plant, executes the dynamic model to simulate a phenomenon of a nuclear power plant in real time, and outputs the simulated simulation result data, the operating state of the dynamically modeled nuclear power plant, A first server and a second server for monitoring the performance of the device or the processor and outputting monitoring result data; And a field control unit connected to the plurality of client terminals, a plurality of safety systems or a plurality of non-safety systems via a communication network, and performing a communication network error diagnosing function for the plurality of client terminals, the plurality of safety systems, A processor,
Wherein the plurality of client terminals include a shared memory for storing own data and data of other client terminals and by loading an application program for sharing data of the shared memory, And the data sharing time with other client terminals is adjusted according to the degree of importance.
delete The method according to claim 1,
The field control processor,
Receiving status information data from the plurality of client terminals, a plurality of safety systems or a plurality of non-safety systems, receiving control data for simulation in the server device, and transmitting the information data or control data to the server device, A network switch module designed to transmit data to a client terminal, a plurality of safety systems or a plurality of non-safety systems, respectively, and configured to prevent data errors in the communication network; And
And an error diagnosis module for executing an error diagnosis algorithm for detecting an error in accordance with the data transmission rate or a communication node for the plurality of client terminals, the plurality of safety systems or the plurality of non-safety systems, and generating an error information signal Communication diagnosis system of nuclear power generation simulator.
The method of claim 3,
The server apparatus comprising:
A plurality of client terminals connected to a large screen installed in a front direction of the plurality of client terminals for displaying an operation status of the nuclear power simulator,
And generates a display control signal so that error information according to the error information signal is displayed on the screen of the plurality of client terminals or the large screen when the error information signal is received.
The method of claim 3,
The error diagnosis module includes:
A first diagnostic unit for performing a self-diagnosis of the field control processor to detect an error;
A second diagnosis unit for detecting an error through error diagnosis of each of the plurality of client terminals in a state in which the connection between the network switch module and the plurality of safety systems and the non-safety systems is released;
A third diagnostic unit for detecting an error through error diagnosis of each of the plurality of safety systems in a state in which the connection between the network switch module and the plurality of client terminals and the non-safety system is released;
A fourth diagnostic unit for detecting an error through error diagnosis of each of the plurality of non-safety systems in a state in which the connection between the network switch module, the plurality of client terminals, and the safety system is released; And
And a control unit for executing the error diagnosis algorithm to transmit diagnostic command signals to the first to fourth diagnostic units and to generate an error information signal according to the error detection results of the first to fourth diagnostic units A communication diagnostic system of a nuclear power simulator characterized by.
6. The method of claim 5,
The first diagnosis unit, the second diagnosis unit, the third diagnosis unit, or the fourth diagnosis unit,
Feedbacks the output values of the plurality of client terminals, the plurality of safety systems or the plurality of non-safety systems to the plurality of client terminals, the plurality of safety systems or the plurality of non-safety systems, And a bidirectional communication or a unidirectional communication is determined by detecting an abnormal state of the transmitting node or the receiving node according to the comparison result.
The method according to claim 1,
The field control processor,
A communication node detecting an error among the communication nodes constituting the communication network, analyzing a correlation between the communication node for which the error is detected and the remaining communication nodes and the importance of the correlation, And the reliability of the communication node of the correlation is calculated and displayed.
8. The method of claim 7,
Wherein the reliability of the communication node is calculated as one of a trusted state, an uncertainty state of trust, and an untrusted state.

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