CN114609944A - Data monitoring system and method based on nuclear power station simulation platform - Google Patents
Data monitoring system and method based on nuclear power station simulation platform Download PDFInfo
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Abstract
The application discloses a data monitoring system and method based on a nuclear power station simulation platform, the data monitoring mode of the nuclear power station simulation platform is displayed through a display module instead of a simulation instrument and an indicator lamp, and the monitoring of more parameters of the nuclear power station simulation platform is improved. The data transmission of simulation platform and monitoring system adopts signal transmission's mode, and the mode of communication realizes simulation platform and monitoring system's data transmission promptly, need not through the mode of hard wiring, reduces wiring work load, owing to adopted the mode of communication, only need be connected the communication line between the cabinet assembly integration of in the factory and the instrument control platform can, compare the mode of hard wiring, improved the collection efficiency. And the increase of the monitoring parameters can provide more diagnostic information for operators, help the operators to quickly locate problems and improve the maintenance efficiency.
Description
Technical Field
The application relates to the technical field of instruments and meters, in particular to a data monitoring system and method based on a nuclear power station simulation platform.
Background
With the development of computer technology of instrumentation and control systems, the digital systems are widely applied in various industries, and the nuclear power plants are gradually adopting the digital systems. A nuclear power plant refers to a facility that converts nuclear energy into electrical energy by appropriate means.
Due to the requirement of deep defense of nuclear power plants, a plurality of digital systems, such as a control system, a protection system, a diversity system, a post-accident system, etc., are generally required to be arranged. Once a software common cause failure occurs, there is a risk that a plurality of systems arranged may fail simultaneously. To combat this risk, nuclear power plants are generally provided with instrumentation and control systems based on different technologies, such as: a protection system based on a digital technology and a diversity drive system based on an analog technology.
In the process of daily maintenance of the instrument control system of the nuclear power station, the monitoring parameters of the instrument control system are displayed through the simulation instrument and the indicator lamp on the coil panel.
The first aspect is limited by the size and the incoming line quantity of the coil panel, and the monitoring of more parameters is not supported because the number of monitored analog instruments and indicator lamps is limited; the second aspect is that the simulation platform and the monitoring instrument need to be realized in a hard wiring mode, the number of signal cables is large, the influence on site construction is large, and the improvement of integration efficiency is not facilitated; the third aspect is that the simulation platform data can only be monitored through the simulation instrument on the disk, and after problems such as faults occur, the simulation platform data needs manual judgment of operators, and the problems cannot be quickly positioned, so that the maintenance efficiency is low.
Disclosure of Invention
In view of this, the present application discloses a data monitoring system and method based on a nuclear power plant simulation platform, and aims to improve monitoring, integration efficiency, and maintenance efficiency of parameters of more nuclear power plant simulation platforms.
In order to achieve the purpose, the technical scheme is as follows:
the application discloses in a first aspect, a data monitoring system based on a nuclear power plant simulation platform, the system includes:
the system comprises an algorithm board card, a communication board card and a display module; the algorithm board card at least comprises a first algorithm sub board card and a second algorithm sub board card;
the first algorithm daughter board card is connected with the first end of the communication board card;
the second algorithm daughter board card is connected with the second end of the communication board card;
the third end of the communication board card is connected with the first end of the display module, and the fourth end of the communication board card is connected with the second end of the display module;
the first algorithm daughter board card is used for segmenting the acquired digital input signal to obtain a digital signal to be isolated, performing electrical isolation operation on the digital signal to be isolated, and performing parallel-serial conversion operation on the electrically isolated digital signal and pre-acquired first diagnosis pass information to obtain first serial data; the first diagnosis passing information is used for indicating that the state of the first algorithm daughter board card is in a diagnosis passing state;
the second algorithm daughter board card is used for dividing the acquired analog input signal to obtain an analog signal to be isolated, performing electrical isolation operation on the analog signal to be isolated, and performing parallel-serial conversion operation on the electrically isolated analog signal and second diagnosis pass information acquired in advance to obtain second serial data; the second diagnosis passing information is used for indicating that the state of the second algorithm daughter board card is in a diagnosis passing state;
the communication board card is used for performing optical coupling isolation on the first serial data and the second serial data to obtain target data, and converting the target data into preset protocol display data; the preset protocol display data is used for displaying simulation platform parameters of the nuclear power station;
the display module is used for displaying the preset protocol display data.
Preferably, the first algorithm daughter board card includes:
the first main channel, the first isolation circuit, the first state diagnosis circuit and the first parallel-serial conversion circuit;
the first end of the first main channel receives the digital input signal, the second end outputs a first output signal to a lower-level board card, the third end is connected with the first end of the first isolation circuit, and the first main channel is used for carrying out signal division on the digital input signal to obtain the digital signal to be isolated and the first output signal;
the second end of the first isolation circuit is connected with the first end of the first parallel-serial conversion circuit, and the first isolation circuit is used for electrically isolating the digital signal to be isolated;
the first state diagnosis circuit is connected with a first end of the first parallel-serial conversion circuit and is used for diagnosing the state of the first algorithm daughter board card;
and the second end of the first parallel-serial conversion circuit is connected with the first end of the communication board card, and the first parallel-serial conversion circuit is used for performing parallel-serial conversion operation on the electrically isolated digital input signal and the first diagnosis passing information.
Preferably, the first state diagnostic circuit is specifically configured to:
and if the board card of the first algorithm daughter board card is in place, the power supply state is correct and the board card type is correct, generating first diagnosis passing information.
Preferably, the first parallel-to-serial conversion circuit is specifically configured to:
and performing parallel-serial conversion on the electrically isolated digital signal and the first diagnosis passing information in a preset conversion mode to obtain the first serial data.
Preferably, the second algorithm daughter board card includes:
the second main path, the second isolation circuit, the second state diagnosis circuit and the second parallel-serial conversion circuit;
the first end of the second main channel receives the analog input signal, the second end outputs a second output signal to a lower-level board card, the third end is connected with the first end of the second isolation circuit, and the second main channel is used for carrying out signal segmentation on the analog input signal to obtain the analog signal to be isolated and the second output signal;
the second end of the second isolation circuit is connected with the first end of the second parallel-serial conversion circuit, and the second isolation circuit is used for electrically isolating the analog signal to be isolated;
the second state diagnosis circuit is connected with the first end of the second parallel-serial conversion circuit and is used for diagnosing the state of the second algorithm daughter board card;
and the second end of the second parallel-serial conversion circuit is connected with the first end of the communication board card, and the second parallel-serial conversion circuit is used for performing parallel-serial conversion operation on the electrically isolated analog input signal and the second diagnosis passing information.
Preferably, the second state diagnostic circuit is specifically configured to:
and if the board card of the second algorithm daughter board card is in place, the power supply state is correct and the board card type is correct, generating second diagnosis passing information.
Preferably, the second parallel-to-serial conversion circuit is specifically configured to:
and performing parallel-serial conversion on the electrically isolated analog signal and the second diagnosis passing information in a preset conversion mode to obtain second serial data.
Preferably, the communication board card includes:
the system comprises an isolation module, a first isolation communication link, a main system and a second isolation communication link;
the first end of the isolation module is connected with the second end of the first parallel-serial conversion circuit, the second end of the isolation module is connected with the second end of the second parallel-serial conversion circuit, and the third end of the isolation module is connected with the first end of the main system; the isolation module is used for optically coupling and isolating the first serial data and the second serial data;
the second end of the main system is connected with the first end of the first isolation communication link, and the third end of the main system is connected with the first end of the second isolation communication link; the main system is used for respectively sending the target data to the first isolation communication link and the second isolation communication link;
the second end of the first isolated communication link is connected with the first end of the display module;
the third end of the second isolation communication link is connected with the second end of the display module;
the first isolation communication link and the second isolation communication link form a redundant structure, and if any one of the first isolation communication link and the second isolation communication link fails, the isolation communication module which does not fail takes over the function of the isolation communication module which fails.
A second aspect of the present application discloses a data monitoring method based on a nuclear power plant simulation platform, which is characterized in that the data monitoring method based on the nuclear power plant simulation platform is applied to any one of the data monitoring systems based on the nuclear power plant simulation platform in the first aspect, and the method includes:
dividing a digital input signal to obtain a digital signal to be isolated, and carrying out electrical isolation operation on the digital signal to be isolated;
carrying out parallel-serial conversion operation on the electrically isolated digital signal and the pre-acquired first diagnosis passing information to obtain first serial data; the first diagnosis passing information is used for indicating that the state of the first algorithm daughter board card is in a diagnosis passing state;
dividing an analog input signal to obtain an analog signal to be isolated, and carrying out electrical isolation operation on the analog signal to be isolated;
carrying out parallel-serial conversion operation on the electrically isolated analog signal and the pre-acquired second diagnosis passing information to obtain second serial data; the second diagnosis passing information is used for indicating that the state of the second algorithm daughter board card is in a diagnosis passing state;
performing optical coupling isolation on the first serial data and the second serial data to obtain target data, and converting the target data into preset protocol display data; the preset protocol display data is used for displaying simulation platform parameters of the nuclear power station;
and displaying the preset protocol display data.
According to the technical scheme, the data monitoring system and method based on the nuclear power station simulation platform comprise an algorithm board card, a communication board card and a display module; the algorithm board card at least comprises a first algorithm sub board card and a second algorithm sub board card; the first algorithm daughter board card is connected with the first end of the communication board card; the second algorithm daughter board card is connected with the second end of the communication board card; the third end of the communication board card is connected with the first end of the display module, and the fourth end of the communication board card is connected with the second end of the display module; the first algorithm daughter card is used for segmenting the acquired digital input signal to obtain a digital signal to be isolated, electrically isolating the digital signal to be isolated, and performing parallel-serial conversion operation on the electrically isolated digital signal and the pre-acquired first diagnosis pass information to obtain first serial data; the first diagnosis passing information is used for indicating that the state of the first algorithm daughter board card is in a diagnosis passing state; the second algorithm daughter card is used for dividing the acquired analog input signal to obtain an analog signal to be isolated, performing electrical isolation operation on the analog signal to be isolated, and performing parallel-serial conversion operation on the electrically isolated analog signal and the pre-acquired second diagnosis pass information to obtain second serial data; the second diagnosis passing information is used for indicating that the state of the second algorithm daughter board card is in a diagnosis passing state; the communication board card is used for performing optical coupling isolation on the first serial data and the second serial data to obtain target data, and converting the target data into preset protocol display data; the preset protocol display data is used for displaying simulation platform parameters of the nuclear power station; and the display module is used for displaying the preset protocol display data. Through the scheme, the data of the nuclear power station simulation platform is monitored in a display mode without being displayed through the simulation instrument and the indicator lamp, and the data is displayed through the display module, so that the monitoring of more parameters of the nuclear power station simulation platform is improved. The data transmission of simulation platform and monitoring system adopts signal transmission's mode, and the mode of communication realizes simulation platform and monitoring system's data transmission promptly, need not through the mode of hard wiring, reduces wiring work load, owing to adopted the mode of communication, only need be connected the communication line between the cabinet assembly integration of in the factory and the instrument control platform can, compare the mode of hard wiring, improved the collection efficiency. And the increase of the monitoring parameters can provide more diagnostic information for operators, help the operators to quickly locate problems and improve the maintenance efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a data monitoring system based on a nuclear power plant simulation platform disclosed in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of another data monitoring system based on a nuclear power plant simulation platform disclosed in an embodiment of the present application;
fig. 3 is a schematic diagram of a first parallel-to-serial conversion circuit disclosed in the embodiment of the present application obtaining first serial data through a predetermined conversion method;
fig. 4 is a schematic diagram illustrating that a control signal of the first parallel-to-serial conversion circuit converts parallel transmission data into first serial data and outputs the first serial data through a clock according to an embodiment of the present disclosure;
fig. 5 is a schematic flowchart of a data monitoring method based on a nuclear power plant simulation platform according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As known in the background art, the connection mode between the coil panel and the control system is a hard-wired mode, and the defects of the first aspect that the connection mode is limited by the size and the incoming line quantity of the coil panel, and the monitoring of more parameters is not supported because the number of monitored analog instruments and indicator lamps is limited; the second aspect is that the simulation platform and the monitoring instrument need to be realized in a hard wiring mode, the number of signal cables is large, the influence on site construction is large, and the improvement of integration efficiency is not facilitated; the third aspect is that the simulation platform data can only be monitored through the simulation instrument on the disk, and after problems such as faults occur, the simulation platform data needs manual judgment of operators, and the problems cannot be quickly positioned, so that the maintenance efficiency is low.
In order to solve the problems, the application discloses a data monitoring system and a data monitoring method based on a nuclear power plant simulation platform, the data monitoring mode of the nuclear power plant simulation platform is displayed through a display module instead of a simulation instrument and an indicator lamp, and the monitoring of more parameters of the nuclear power plant simulation platform is improved. The data transmission of simulation platform and monitored control system adopts signal transmission's mode, and the mode of communication realizes simulation platform and monitored control system's data transmission promptly, need not through the mode of hard wiring, reduces wiring work load, owing to adopted the mode of communication, only need be connected the communication line between the cabinet assembly integration of in the factory and the instrument control platform can, compare the mode of hard wiring, improve the collection efficiency. And the increase of the monitoring parameters can provide more diagnostic information for operators, help the operators to quickly locate problems and improve the maintenance efficiency. The specific implementation is specifically illustrated by the following examples.
Referring to fig. 1, a schematic structural diagram of a data monitoring system based on a nuclear power plant simulation platform disclosed in an embodiment of the present application is shown, where the data monitoring system based on the nuclear power plant simulation platform includes an algorithm board 11, a communication board 12, and a display module 13, and the algorithm board includes at least a first algorithm daughter board 14 and a second algorithm daughter board 15.
The number of the algorithm daughter cards of the algorithm board card 11 may be multiple.
The connection relationship among the first algorithm daughter board card 14, the second algorithm daughter board card 15, the communication board card 12 and the display module 13 is as follows:
the first algorithm daughter board card 14 is connected to a first end of the communication board card 12.
The second algorithm daughter board card 15 is connected to a second end of the communication board card 12.
The third end of the communication board 12 is connected to the first end of the display module 13, and the fourth end is connected to the second end of the display module 13.
The data interaction process among the first algorithm daughter board card 14, the second algorithm daughter board card 15, the communication board card 12 and the display module 13 is as follows:
the first algorithm daughter board card 14 divides the acquired digital input signal to obtain a to-be-isolated digital signal.
The first algorithm daughter board card 14 divides the acquired digital input signal (D1) to obtain a to-be-isolated digital signal (DO2) and a first output signal (DO1), and the DO2 performs parallel-serial conversion after electrical isolation; and the DO1 is sent to the lower-level board card, and the lower-level board card is configured with a corresponding board card according to different applications. For example, the lower level board configures a board performing a delay function, and the DO1 participates in the processing of the delay board.
The lower-level board cards are configured with various board cards according to different applications, and the lower-level board cards generally comprise time-delay board cards, logical-conforming board cards, trigger board cards and the like.
The digital input signal is usually from a feedback signal of a pump valve on site or a switching value signal of a third-party system.
The third-party system comprises a post-accident monitoring system, a centralized monitoring system and the like.
The first algorithm daughter board card 14 performs electrical isolation operation on the digital signal to be isolated, and performs parallel-to-serial conversion operation on the electrically isolated digital signal and the pre-acquired first diagnosis pass information to obtain first serial data; the first diagnostic pass information is used to indicate that the status of the first algorithm daughter board 14 is in a diagnostic pass status.
The electrical isolation is mainly used for reducing mutual interference between two different circuits. For example, an actual circuit is poor in operating environment and is prone to cause a fault such as grounding. If the circuit is directly connected with a power supply without electrical isolation, once the circuit is grounded, the whole power grid can be influenced by the circuit and cannot work normally.
The first algorithm daughter board 14 converts the parallel data into serial data, and specifically, the first algorithm daughter board 14 converts the parallel data (the electrically isolated digital signal and the first diagnostic pass information) into first serial data.
The first algorithm daughter board 14 sends the first serial data to the communication board 12. The first serial data is optically coupled and isolated by the communication board card 12.
The optical coupling isolation is used for preventing interference caused by electric connection.
The second algorithm daughter board card 15 divides the acquired analog input signal to obtain an analog signal to be isolated, and performs electrical isolation operation on the analog signal to be isolated.
The second algorithm daughter board card 15 divides the obtained analog input signal to obtain an analog signal to be isolated (AO2) and a second output signal (AO1), and the analog signal to be isolated is sent to parallel-serial conversion after being electrically isolated; the second output signal is sent to the lower-level board card to participate in analog quantity processing operation of the lower-level board card, the lower-level analog board card generally comprises a threshold processing board card and four operation type board cards, and the analog quantity is isolated from the output board card.
The analog input signal is typically derived from a sensor signal in the field or an analog signal from a third party system.
The second algorithm daughter board card 15 performs parallel-to-serial conversion operation on the electrically isolated analog signal and the pre-acquired second diagnosis pass information to obtain second serial data; the second diagnosis pass information is used to indicate that the state of the second algorithm daughter board 15 is in the diagnosis pass state.
Specifically, the second algorithm daughter card 15 converts the parallel data (the electrically isolated analog signal and the second diagnostic pass information) into the second serial data.
The second algorithm daughter card 15 transmits the second serial data to the communication card 12. And the communication board card 12 optically couples and isolates the second serial data.
The communication board card 12 optically couples and isolates the first serial data and the second serial data to obtain target data, and converts the target data into preset protocol display data; the preset protocol display data is used for displaying simulation platform parameters of the nuclear power station.
The target data are used for indicating the first serial data subjected to optical coupling isolation and the second serial data subjected to optical coupling isolation.
The preset protocol display data is the simulation platform parameters (power, pressure, liquid level, etc.) of the standard protocol.
The standard protocol comprises a Modbus TCP protocol, a Modbus RTU protocol and the like.
The communication board 12 has a general communication interface, and can directly communicate with a monitoring system of a third party, and the monitoring system of the third party can realize alarm and data display functions by configuring or configuring received data, for example: displaying key process parameters, configuring and displaying various alarms, and the like.
The display module 13 displays the preset protocol display data.
Specifically, the first algorithm daughter board 14 includes a first main path 21, a first isolation circuit 22, a first state diagnosis circuit 23, and a first parallel-to-serial conversion circuit 24.
The second algorithm daughter board 15 includes a second main path 25, a second isolation circuit 26, a second status diagnosis circuit 27, and a second parallel-to-serial conversion circuit 28.
The communication board 12 includes an isolation module 31, a first isolated communication link 32, a host system 33, and a second isolated communication link 34.
The connection relationship and data interaction process of the first main path 21, the first isolation circuit 22, the first state diagnosis circuit 23, the first parallel-serial conversion circuit 24, the second main path 25, the second isolation circuit 26, the second state diagnosis circuit 27, the second parallel-serial conversion circuit 28, the isolation module 31, the first isolation communication link 32, the main system 33, the second isolation communication link 34 and the display module 13 will be described with reference to fig. 2. Fig. 2 shows a schematic structural diagram of another data monitoring system based on a nuclear power plant simulation platform.
In fig. 2, a first end of a first main path 21 receives a digital input signal, a second end outputs a first output signal to a lower-level board card, a third end is connected to a first end of a first isolation circuit 22, and the first main path 21 is configured to perform signal division on the digital input signal to obtain a to-be-isolated digital signal and a first output signal.
The second end of the first isolation circuit 22 is connected to the first end of the first parallel-to-serial conversion circuit 24, and the first isolation circuit 22 is used for electrically isolating the digital signal to be isolated.
The first state diagnosis circuit 23 is connected to a first end of the first parallel-to-serial conversion circuit 24, and the first state diagnosis circuit 23 is configured to diagnose a state of the first algorithm daughter board 14.
The information of the state diagnosis of the first algorithm daughter board card 14 (such as whether the first algorithm daughter board card 14 is in place, the power supply state, and whether the board type is correct) is also sent to the first parallel-to-serial conversion circuit.
If the first state diagnosis circuit 23 diagnoses that the board of the first algorithm daughter board 14 is in place, the power supply state is correct, and the board type is correct, first diagnosis pass information is generated.
The second end of the first parallel-to-serial conversion circuit 24 is connected to the first end of the communication board 12, and the first parallel-to-serial conversion circuit 24 is configured to perform a parallel-to-serial conversion operation on the electrically isolated digital input signal and the first diagnosis pass information.
The first parallel-to-serial conversion circuit 24 is configured to convert parallel transmission data (the electrically isolated digital input signal and the first diagnostic pass information) into first serial data.
Specifically, the first parallel-to-serial conversion circuit 24 performs parallel-to-serial conversion on the electrically isolated digital signal and the first diagnosis pass information in a preset conversion mode to obtain first serial data, that is, the first parallel-to-serial conversion circuit 24 performs conversion on parallel transmission data in a mode of shifting from right to left through a clock to obtain the first serial data.
For convenience of understanding, the first parallel-to-serial conversion circuit 24 performs parallel-to-serial conversion on the electrically isolated digital signal and the first diagnostic pass information by a preset conversion mode to obtain the first serial data, which is described herein with reference to fig. 3.
In fig. 3, the first parallel data includes the electrically isolated digital input signal and the first diagnostic information.
N is a clock, and the value of N is an integer greater than or equal to 1.
D is a parallel-to-serial conversion operation.
The control signal of the first parallel-to-serial conversion circuit 24 converts the first parallel data (the electrically isolated digital input signal and the first diagnostic pass information) into the first serial data by a clock so as to shift from "right to left" and outputs the first serial data.
For convenience of understanding, a process of converting the first parallel data into the first serial data in a manner of shifting from right to left by a clock according to a control signal of the first parallel-to-serial conversion circuit 24 and outputting the converted data will be described as an example with reference to fig. 4.
In fig. 4, each board contains 3 bytes, where Byte0 represents the ID number of the board, Byte1 represents the diagnostic information of the board, Byte2 represents the channel value of the board, the first parallel data includes the electrically isolated digital input signal and the first diagnostic information, and the values 1, 2 … 7, and 8 each represent the number of bits.
In the case of enabling the control signal, periodically combining the bytes from the two boards into a new byte, and sending the combined byte to the communication board 12, for example: in the first clock cycle, the Byte2 of the first board and the Byte2 of the 2 nd board are sent to the serial-to-parallel conversion circuit 24, the circuit recombines the data into two bytes (first serial data) respectively representing the channel value of the first board and the channel value of the second board, and sends the merged data to the communication board 12, when the second clock command is received, the Byte1 of the first board and the Byte1 of the 2 nd board are recombined into two bytes respectively representing the diagnostic information of the first board and the diagnostic information of the second board, and simultaneously sends the merged data to the communication board 12, and so on, each clock recombines the bytes from different boards into new data and sends the new data to the communication board 12.
In the application, each parallel-serial conversion circuit can process data of 16 boards at most simultaneously.
The connection relationship among the second main path 25, the second isolation circuit 26, the second status diagnosis circuit 27, the second parallel-serial conversion circuit 28, the isolation module 31, the first isolation communication link 32, the main system 33, the second isolation communication link 34 and the display module 13 is as follows:
the first end of the second main path 25 receives the analog input signal, the second end outputs a second output signal to the lower-level board card, the third end is connected with the first end of the second isolation circuit 26, and the second main path 25 is used for performing signal division on the analog input signal to obtain an analog signal to be isolated and a second output signal.
A second terminal of the second isolation circuit 26 is connected to a first terminal of the second parallel-to-serial conversion circuit, and the second isolation circuit is used for electrically isolating the analog signal to be isolated.
A second state diagnosis circuit 27 is connected to a first end of the second parallel-to-serial conversion circuit, and is configured to diagnose a state of the second algorithm daughter board 15.
If the second state diagnosis circuit 27 diagnoses that the board of the second algorithm daughter board 15 is in place, the power supply state is correct, and the board type is correct, second diagnosis pass information is generated.
A second end of the second parallel-to-serial conversion circuit 28 is connected to the first end of the communication board 12, and the second parallel-to-serial conversion circuit 28 is configured to perform a parallel-to-serial conversion operation on the electrically isolated analog input signal and the second diagnosis pass information.
The second parallel-to-serial conversion circuit 28 is configured to convert the parallel transmission data (the electrically isolated analog input signal and the second diagnostic pass information) into second serial data.
Specifically, the second parallel-to-serial conversion circuit 28 performs parallel-to-serial conversion on the electrically isolated analog signal and the second diagnostic pass information in a preset conversion manner to obtain second serial data.
The execution principle of the second parallel-to-serial conversion circuit 28 performing parallel-to-serial conversion on the electrically isolated analog signal and the second diagnosis pass information in a preset conversion manner to obtain the second serial data is consistent with the execution principle of the first parallel-to-serial conversion circuit 24 performing parallel-to-serial conversion on the electrically isolated digital signal and the first diagnosis pass information in a preset conversion manner to obtain the first serial data, which can be referred to and will not be described herein again.
A first end of the isolation module 31 is connected to a second end of the first parallel-to-serial conversion circuit 24, a second end is connected to a second end of the second parallel-to-serial conversion circuit 28, and a third end is connected to a first end of the main system 33; the isolation module 31 is configured to optically couple and isolate the first serial data and the second serial data.
A second end of the master system 33 is connected to a first end of a first isolated communication link 32 and a third end is connected to a first end of a second isolated communication link 34; the host system 33 is configured to send the target data to the first isolated communication link 32 and the second isolated communication link 34, respectively.
A second end of the first isolated communication link 32 is connected to a first end of the display module 13.
The third terminal of the second isolated communication link 34 is connected to the second terminal of the display module 13.
The first isolated communication link 32 and the second isolated communication link 34 form a redundant structure, and if any one of the first isolated communication link 32 and the second isolated communication link 34 fails, the isolated communication module that does not fail takes over the function of the isolated communication module that fails.
In the embodiment of the application, the data monitoring mode of the nuclear power station simulation platform does not need to be displayed through a simulation instrument and an indicator lamp, but is displayed through a display module, so that the monitoring of more parameters of the nuclear power station simulation platform is improved. The data transmission of simulation platform and monitored control system adopts signal transmission's mode, and the mode of communication realizes simulation platform and monitored control system's data transmission promptly, need not through the mode of hard wiring, reduces wiring work load, owing to adopted the mode of communication, only need be connected the communication line between the cabinet assembly integration of in the factory and the instrument control platform can, compare the mode of hard wiring, improve the collection efficiency. And the increase of the monitoring parameters can provide more diagnostic information for operators, help the operators to quickly locate problems and improve the maintenance efficiency.
Based on the above embodiment and fig. 1, a data monitoring system based on a nuclear power plant simulation platform is disclosed, and the embodiment of the application also correspondingly discloses a data monitoring method based on the nuclear power plant simulation platform, as shown in fig. 5, the data monitoring method based on the nuclear power plant simulation platform mainly includes the following steps:
s501: and segmenting the digital input signal to obtain a digital signal to be isolated, and carrying out electrical isolation operation on the digital signal to be isolated.
In S501, the digital input signal is divided to obtain a digital signal to be isolated and a first output signal.
The first output signal is sent to the lower-level board card.
The purpose of the electrical isolation is mainly to reduce mutual interference between two different circuits. For example, an actual circuit is poor in operating environment and is prone to cause a fault such as grounding. If the circuit is directly connected with a power supply without electrical isolation, once the circuit is grounded, the whole power grid can be influenced by the circuit and cannot work normally.
S502: carrying out parallel-serial conversion operation on the electrically isolated digital signals and the pre-acquired first diagnosis passing information to obtain first serial data; the first diagnosis passing information is used for indicating that the state of the first algorithm daughter board card is in a diagnosis passing state.
When the first algorithm daughter board card is in place, the power state of the first algorithm daughter board card is correct, and the board card type of the first algorithm daughter board card is correct, first diagnosis passing information is generated.
S503: and segmenting the analog input signal to obtain an analog signal to be isolated, and electrically isolating the analog signal to be isolated.
In S503, the analog input signal is divided to obtain an analog signal to be isolated and a second output signal.
The second output signal is sent to the lower-level board card.
S504: carrying out parallel-serial conversion operation on the electrically isolated analog signal and the pre-acquired second diagnosis passing information to obtain second serial data; the second diagnosis passing information is used for indicating that the state of the second algorithm daughter board card is in a diagnosis passing state.
And generating second diagnosis passing information when the second algorithm daughter board card is in place, the power state of the second algorithm daughter board card is correct, and the board card type of the second algorithm daughter board card is correct.
S505: performing optical coupling isolation on the first serial data and the second serial data to obtain target data, and converting the target data into preset protocol display data; the preset protocol display data is used for displaying simulation platform parameters of the nuclear power station.
The optical coupling isolation is used for preventing interference caused by electric connection.
The preset protocol display data is the simulation platform parameters of the standard protocol.
The target data are used for indicating the first serial data subjected to optical coupling isolation and the second serial data subjected to optical coupling isolation.
S506: and displaying the preset protocol display data.
In the embodiment of the application, the data monitoring mode of the nuclear power station simulation platform does not need to be displayed through a simulation instrument and an indicator lamp, but is displayed through a display module, so that the monitoring of more parameters of the nuclear power station simulation platform is improved. The data transmission of simulation platform and monitored control system adopts signal transmission's mode, and the mode of communication realizes simulation platform and monitored control system's data transmission promptly, need not through the mode of hard wiring, reduces wiring work load, owing to adopted the mode of communication, only need be connected the communication line between the cabinet assembly integration of in the factory and the instrument control platform can, compare the mode of hard wiring, improve the collection efficiency. And the increase of the monitoring parameters can provide more diagnostic information for operators, help the operators to quickly locate problems and improve the maintenance efficiency.
The embodiment of the application also provides a storage medium, wherein the storage medium comprises stored instructions, and when the instructions are executed, the equipment where the storage medium is located is controlled to execute the data monitoring method based on the nuclear power plant simulation platform.
The embodiment of the present application further provides an electronic device, whose schematic structural diagram is shown in fig. 6, specifically including a memory 601, and one or more instructions 602, where the one or more instructions 602 are stored in the memory 601, and are configured to be executed by one or more processors 603, and the one or more instructions 602 perform the above-mentioned data monitoring method based on the plant simulation platform.
The specific implementation procedures and derivatives thereof of the above embodiments are within the scope of the present application.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing is only a preferred embodiment of the present application and it should be noted that, as will be apparent to those skilled in the art, numerous modifications and adaptations can be made without departing from the principles of the present application and such modifications and adaptations are intended to be considered within the scope of the present application.
Claims (9)
1. A data monitoring system based on a nuclear power plant simulation platform, the system comprising:
the system comprises an algorithm board card, a communication board card and a display module; the algorithm board card at least comprises a first algorithm sub board card and a second algorithm sub board card;
the first algorithm daughter board card is connected with the first end of the communication board card;
the second algorithm daughter board card is connected with the second end of the communication board card;
the third end of the communication board card is connected with the first end of the display module, and the fourth end of the communication board card is connected with the second end of the display module;
the first algorithm daughter board card is used for segmenting the acquired digital input signal to obtain a digital signal to be isolated, performing electrical isolation operation on the digital signal to be isolated, and performing parallel-serial conversion operation on the electrically isolated digital signal and pre-acquired first diagnosis pass information to obtain first serial data; the first diagnosis passing information is used for indicating that the state of the first algorithm daughter board card is in a diagnosis passing state;
the second algorithm daughter board card is used for dividing the acquired analog input signal to obtain an analog signal to be isolated, performing electrical isolation operation on the analog signal to be isolated, and performing parallel-serial conversion operation on the electrically isolated analog signal and second diagnosis pass information acquired in advance to obtain second serial data; the second diagnosis passing information is used for indicating that the state of the second algorithm daughter board card is in a diagnosis passing state;
the communication board card is used for performing optical coupling isolation on the first serial data and the second serial data to obtain target data, and converting the target data into preset protocol display data; the preset protocol display data is used for displaying simulation platform parameters of the nuclear power station;
and the display module is used for displaying the preset protocol display data.
2. The system of claim 1, wherein the first algorithm daughter board comprises:
the first main channel, the first isolation circuit, the first state diagnosis circuit and the first parallel-serial conversion circuit;
the first end of the first main channel receives the digital input signal, the second end outputs a first output signal to a lower-level board card, the third end is connected with the first end of the first isolation circuit, and the first main channel is used for carrying out signal division on the digital input signal to obtain the digital signal to be isolated and the first output signal;
the second end of the first isolation circuit is connected with the first end of the first parallel-serial conversion circuit, and the first isolation circuit is used for electrically isolating the digital signal to be isolated;
the first state diagnosis circuit is connected with a first end of the first parallel-serial conversion circuit and is used for diagnosing the state of the first algorithm daughter board card;
and the second end of the first parallel-serial conversion circuit is connected with the first end of the communication board card, and the first parallel-serial conversion circuit is used for performing parallel-serial conversion operation on the electrically isolated digital input signal and the first diagnosis passing information.
3. The system of claim 2, wherein the first condition diagnostic circuitry is specifically configured to:
and if the board card of the first algorithm daughter board card is in place, the power supply state is correct and the board card type is correct, generating first diagnosis passing information.
4. The system of claim 2, wherein the first parallel-to-serial conversion circuit is specifically configured to:
and performing parallel-serial conversion on the electrically isolated digital signal and the first diagnosis passing information in a preset conversion mode to obtain the first serial data.
5. The system of claim 2, wherein the second algorithm daughter board comprises:
the second main path, the second isolation circuit, the second state diagnosis circuit and the second parallel-serial conversion circuit;
the first end of the second main channel receives the analog input signal, the second end outputs a second output signal to a lower-level board card, the third end is connected with the first end of the second isolation circuit, and the second main channel is used for carrying out signal segmentation on the analog input signal to obtain the analog signal to be isolated and the second output signal;
the second end of the second isolation circuit is connected with the first end of the second parallel-serial conversion circuit, and the second isolation circuit is used for electrically isolating the analog signal to be isolated;
the second state diagnosis circuit is connected with the first end of the second parallel-serial conversion circuit and is used for diagnosing the state of the second algorithm daughter board card;
and the second end of the second parallel-serial conversion circuit is connected with the first end of the communication board card, and the second parallel-serial conversion circuit is used for performing parallel-serial conversion operation on the electrically isolated analog input signal and the second diagnosis passing information.
6. The system of claim 5, wherein the second condition diagnostic circuitry is specifically configured to:
and if the board card of the second algorithm daughter board card is in place, the power supply state is correct and the board card type is correct, generating second diagnosis passing information.
7. The system of claim 5, wherein the second parallel-to-serial conversion circuit is specifically configured to:
and performing parallel-serial conversion on the electrically isolated analog signal and the second diagnosis passing information in a preset conversion mode to obtain second serial data.
8. The system of claim 5, wherein the communication board comprises:
the system comprises an isolation module, a first isolation communication link, a main system and a second isolation communication link;
the first end of the isolation module is connected with the second end of the first parallel-serial conversion circuit, the second end of the isolation module is connected with the second end of the second parallel-serial conversion circuit, and the third end of the isolation module is connected with the first end of the main system; the isolation module is used for optically coupling and isolating the first serial data and the second serial data;
the second end of the main system is connected with the first end of the first isolation communication link, and the third end of the main system is connected with the first end of the second isolation communication link; the main system is used for respectively sending the target data to the first isolation communication link and the second isolation communication link;
the second end of the first isolated communication link is connected with the first end of the display module;
the third end of the second isolation communication link is connected with the second end of the display module;
the first isolation communication link and the second isolation communication link form a redundant structure, and if any one of the first isolation communication link and the second isolation communication link fails, the isolation communication module which does not fail takes over the function of the isolation communication module which fails.
9. A nuclear power plant simulation platform-based data monitoring method, which is applied to the nuclear power plant simulation platform-based data monitoring system of any one of claims 1 to 8, and comprises the following steps:
dividing a digital input signal to obtain a digital signal to be isolated, and carrying out electrical isolation operation on the digital signal to be isolated;
carrying out parallel-serial conversion operation on the electrically isolated digital signal and the pre-acquired first diagnosis passing information to obtain first serial data; the first diagnosis passing information is used for indicating that the state of the first algorithm daughter board card is in a diagnosis passing state;
dividing an analog input signal to obtain an analog signal to be isolated, and carrying out electrical isolation operation on the analog signal to be isolated;
carrying out parallel-serial conversion operation on the electrically isolated analog signal and the pre-acquired second diagnosis passing information to obtain second serial data; the second diagnosis passing information is used for indicating that the state of the second algorithm daughter board card is in a diagnosis passing state;
performing optical coupling isolation on the first serial data and the second serial data to obtain target data, and converting the target data into preset protocol display data; the preset protocol display data is used for displaying simulation platform parameters of the nuclear power station;
and displaying the preset protocol display data.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05110634A (en) * | 1991-10-16 | 1993-04-30 | Hitachi Ltd | Multiple input specific pattern detection circuit |
| CN101060457A (en) * | 2007-04-05 | 2007-10-24 | 华南理工大学 | Optical fiber-based high speed serial industrial real-time communication bus system and its control method |
| CN104966538A (en) * | 2015-06-02 | 2015-10-07 | 北京广利核系统工程有限公司 | Nuclear power station instrument control system based on FPGA technologies |
| CN205563168U (en) * | 2016-02-01 | 2016-09-07 | 南京丹华昊博电力科技有限公司 | Arc suppressing coil controller device based on synchronous serial bus technique |
| CN111602125A (en) * | 2018-01-08 | 2020-08-28 | Wago管理有限责任公司 | Voltage diagnosis circuit |
| CN112666882A (en) * | 2019-10-16 | 2021-04-16 | 中电智能科技有限公司 | Program-controlled digital quantity input/output board card based on domestic CPU |
| CN113485183A (en) * | 2021-07-01 | 2021-10-08 | 浙江大学 | Serial signal acquisition output control device based on PCI bus protocol |
-
2022
- 2022-03-08 CN CN202210227072.4A patent/CN114609944A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05110634A (en) * | 1991-10-16 | 1993-04-30 | Hitachi Ltd | Multiple input specific pattern detection circuit |
| CN101060457A (en) * | 2007-04-05 | 2007-10-24 | 华南理工大学 | Optical fiber-based high speed serial industrial real-time communication bus system and its control method |
| CN104966538A (en) * | 2015-06-02 | 2015-10-07 | 北京广利核系统工程有限公司 | Nuclear power station instrument control system based on FPGA technologies |
| CN205563168U (en) * | 2016-02-01 | 2016-09-07 | 南京丹华昊博电力科技有限公司 | Arc suppressing coil controller device based on synchronous serial bus technique |
| CN111602125A (en) * | 2018-01-08 | 2020-08-28 | Wago管理有限责任公司 | Voltage diagnosis circuit |
| CN112666882A (en) * | 2019-10-16 | 2021-04-16 | 中电智能科技有限公司 | Program-controlled digital quantity input/output board card based on domestic CPU |
| CN113485183A (en) * | 2021-07-01 | 2021-10-08 | 浙江大学 | Serial signal acquisition output control device based on PCI bus protocol |
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