Data communication device, method and equipment based on network access equipment and medium

Abstract

The invention discloses a data communication device, method and equipment based on network access equipment and a medium, and relates to the field of wireless communication, and the device comprises a nuclear power station distributed system, an instrument measurement module, a system control center, a system execution module, the network access equipment, a 5G base station, 5G receiving equipment and an upper computer which are connected in sequence; the network access equipment is used for monitoring the quantity of transmitted data and a communication congestion condition in real time, and remotely transmitting data acquired by the instrument measurement module in real time to the 5G receiving equipment through the 5G base station by utilizing a 5G communication link based on a self-adaptive data packaging mechanism; the 5G receiving equipment and the upper computer carry out two-way transmission through a dynamic switching communication protocol; the data are sensor data collected by the instrument measurement module. According to the data transmission method and device, the data transmission efficiency can be improved, and the delay time of data transmission is shortened.

Description

Technical Field

[0001] The present application relates to the field of wireless communications, and in particular to a data communication device, method, equipment, and medium based on a network access device. Background Art

[0002] The rapid development of 5G technology has ushered in a revolutionary change in the field of wireless communications. With its high bandwidth, low latency, and massive connectivity, 5G technology provides unprecedented communication capabilities across various industries. In particular, the application of 5G technology in industrial control has significantly improved the real-time performance, reliability, and flexibility of systems. Nuclear power plants, as highly complex and safety-critical industrial systems, place particularly significant demands on the communication needs of their distributed control systems.

[0003] Traditional distributed control systems in nuclear power plants primarily rely on wired communication technologies, such as Ethernet and RS485. While these technologies meet the system's communication needs to a certain extent, they also have numerous limitations. First, wired communication cabling is complex, especially in large industrial environments like nuclear power plants, where cabling costs are high and maintenance is difficult. Second, wired communication suffers from poor scalability and struggles to adapt to dynamic changes in system size. Furthermore, wired communication suffers from long recovery times in the event of sudden failures, potentially impacting system stability.

[0004] With the introduction of 5G technology, wireless communications are becoming a crucial addition to distributed control systems in nuclear power plants. 5G not only provides high-speed, low-latency communication but also supports large-scale device connectivity, significantly enhancing system flexibility and scalability. However, existing data communication methods for 5G network access devices still suffer from low data transmission efficiency and long data transmission delays in the specialized environment of nuclear power plants. Summary of the Invention

[0005] The purpose of this application is to provide a data communication device, method, equipment and medium based on network access equipment to solve the problems of low data transmission efficiency and long data transmission delay time in existing data communication methods.

[0006] To achieve the above objectives, this application provides the following solutions:

[0007] In a first aspect, the present application provides a data communication device based on a network access device, comprising: a nuclear power plant distributed system, an instrument measurement module, a system control center, a system execution module, a network access device, a 5G base station, a 5G receiving device, and a host computer;

[0008] The output end of the nuclear power plant distributed system and the input end of the instrument measurement module are connected via a hardware connection line; the output end of the instrument measurement module and the system control center are connected via a wired communication link; the system control center and the input end of the system execution module and the network access device are connected via a wired communication link; the output end of the system execution module and the nuclear power plant distributed system are connected via a hardware connection line;

[0009] The network access device is used to monitor the amount of transmitted data and communication congestion in real time. Based on the adaptive data packaging mechanism, the data collected by the instrument measurement module in real time is remotely transmitted to the 5G receiving device through the 5G base station using the 5G communication link; the 5G receiving device and the host computer perform two-way transmission by dynamically switching the communication protocol; the data is the sensor data collected by the instrument measurement module.

[0010] In a second aspect, the present application provides a data communication method based on a network access device, comprising: utilizing a nuclear power plant distributed system to transmit sensor data collected by an instrument measurement module to a system control center;

[0011] Determine whether the currently uploaded sensor data is the same as the last uploaded sensor data;

[0012] If yes, discard the currently uploaded sensor data;

[0013] If not, embed the currently uploaded sensor data or control instructions into different protocol segments according to permissions and classifications, and distribute the sensor data or control instructions to be uploaded to the network access device using the OPC UA protocol;

[0014] Utilize the network access device to monitor the amount of transmitted data and communication congestion in real time, and based on an adaptive data packaging mechanism, utilize the 5G communication link to remotely transmit the sensor data collected in real time by the instrument measurement module to the 5G receiving device through the 5G base station;

[0015] By dynamically switching the communication protocol, the 5G receiving device and the host computer can perform two-way transmission to achieve stable operation of the distributed system of the nuclear power plant.

[0016] In a third aspect, the present application provides a computer device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement any one of the above-mentioned data communication methods based on a network access device.

[0017] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the above-mentioned data communication methods based on a network access device.

[0018] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0019] This application is based on the data communication device of the network access device and introduces an adaptive data packaging mechanism to realize the data communication of the network access device. This packaging method can improve the efficiency of data transmission and reduce the delay time of data transmission. In addition, this application also automatically switches the communication protocol between the 5G receiving device and the host computer by dynamically switching the communication protocol to perform two-way transmission, thereby increasing the rate of data upload to the cloud, further improving the data transmission efficiency, reducing the delay time of data transmission, and improving the communication efficiency and security of the distributed control system of the nuclear power plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a structural diagram of a data communication device based on a network access device in an embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the structure of a gateway in an embodiment of the present application;

[0023] Figure 3 This is a flow chart of a data communication method based on a network access device in an embodiment of the present application;

[0024] Figure 4 This is an operational flowchart of the 5G network access device based on this application;

[0025] Figure 5 This is an operational flow chart of the communication between the system control center and the network interface device in the 5G-based network access device of this application;

[0026] Figure 6 This is an operational flow chart of the transmission from the 5G receiving device to the host computer in the 5G network access device of this application;

[0027] Figure 7 This is the operational flow chart for transferring data from the host computer to IoTDB in the 5G-based network access device of this application;

[0028] Figure 8 A schematic diagram of the structure of a computer device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] like Figure 1 As shown, the present application provides a data communication device based on network access equipment, including: a nuclear power plant distributed system 1, an instrument measurement module 2, a system control center 3, a system execution module 4, a power supply module 5, a network access device 6, a 5G base station 7, a 5G receiving device 8 and a host computer 9.

[0032] The output end of the nuclear power plant distributed system 1 and the input end of the instrument measurement module 2 are connected through a hardware connection line; the output end of the instrument measurement module 2 and the system control center 3 are connected through a wired communication link; the system control center 3 and the input end of the system execution module 4 and the network access device 6 are connected through a wired communication link; the output end of the system execution module 4 is connected to the nuclear power plant distributed system 1 through a hardware connection line.

[0033] The network access device 6 is used to monitor the amount of transmitted data and communication congestion in real time. Based on the adaptive data packaging mechanism, the data collected by the instrument measurement module 2 in real time is remotely transmitted to the 5G receiving device 8 through the 5G base station 7 using the 5G communication link; the 5G receiving device 8 and the host computer 9 perform two-way transmission by dynamically switching the communication protocol; the data is the sensor data collected by the instrument measurement module 2.

[0034] In actual applications, the 5G receiving device 8 and the host computer 9 realize bidirectional transmission of information between the two through the cooperation of protocols such as Message Queuing Telemetry Transpor (MQTT), Kafka (Apache Kafka, Kafka) and Internet of Things Database (IoTDB).

[0035] In an exemplary embodiment, the system control center 3 specifically includes: a system control module, a sensor acquisition module, a status monitoring module, a calculation module and a data sending module; the system control module is used to manage the data acquisition process; wherein, the management includes configuring the acquisition point information corresponding to each sensor in the instrument measurement module 2, the validity of the collected data, the data forwarding method, the data forwarding protocol and the data processing rules, etc.; the validity includes the valid interval containing the data and the data exception handling mechanism, etc.

[0036] The sensor acquisition module is used to connect with each sensor through a wired communication link, and collect digital signals or analog signals generated by the sensor as needed, and transmit the collected signals to the status monitoring module.

[0037] The state monitoring module is used to verify the data based on the configuration information of the system control module after receiving the data, and transfer the data to the calculation module for calculation.

[0038] The calculation module is used to determine whether the data needs to be calculated. If so, the calculated data is delivered to the data sending module. If not, the data is directly delivered to the data sending module. The calculation method includes numerical conversion and weighted average algorithms.

[0039] The data sending module is used to send the data to the data receiving end according to the configuration information of the system control module after receiving the data.

[0040] In an exemplary embodiment, the collection point information includes control parameters, execution instructions, and status information; the control parameters include a sampling point data value threshold, which is a secondary judgment based on the result value calculated based on the collection point data value and the corresponding collection point data value. If the result meets the set control parameters, an execution instruction is sent to the valve control switch. For example, if the flow result value within the pipeline average time is greater than 0.5, the valve needs to be closed to 30°, etc.; the execution instruction includes an opening and closing instruction generated according to the sampling point data value threshold; the status information includes a periodic communication status judgment of the sampling point and a judgment of whether the sampling point data value is within a valid range.

[0041] In an exemplary embodiment, Figure 2 As shown, the network access device 6 specifically includes: multiple gateways; the multiple gateways include a first gateway, a second gateway and a third gateway; the first gateway is used to realize short-range 5G communication; the second gateway is used to realize medium-range 5G communication; the third gateway is used to realize long-range 5G communication.

[0042] Among them, W1-W11 represent the logical paths between the microprocessor and each communication interface.

[0043] W1: Data path from microprocessor to 4G / 5G communication module.

[0044] W2: Data path from microprocessor to Ethernet communication interface.

[0045] W3: Data path from microprocessor to RS485 communication interface.

[0046] W4: Data path from microprocessor to PCIE interface.

[0047] W5: Data path from microprocessor to UART2 interface.

[0048] W6: Data path from microprocessor to UART1 interface.

[0049] W7: Data path from microprocessor to IIC interface.

[0050] W8: Data path from microprocessor to SPI2 interface.

[0051] W9: Data path from microprocessor to SPI1 interface.

[0052] W10: Data path from microprocessor to WIFI communication module.

[0053] W11: Data path from microprocessor to TYPE-C interface, mainly used for data burning and data transmission.

[0054] In actual applications, the three gateways have the same hardware interface and functions, and only differ in 5G signal strength and device power consumption. The stronger the signal strength, the greater the power consumption and the longer the signal transmission distance. For example, the first gateway has a signal strength of 200mW, a transmission distance of 20 to 30 meters, and requires a 12v power supply; the second gateway has a signal strength of 500mW, a transmission distance of 30 to 50 meters, and requires a 24v power supply; the third gateway has a signal strength of 10W, a transmission distance of 100 meters, and requires a 36v power supply.

[0055] In actual applications, the gateway's external interfaces include: 5G module, Ethernet interface, RS232 & RS485 interface, PCIE2.0 / PCIE3.0 expansion interface, serial communication interface, IIC communication interface, SPI communication interface, wireless communication module, USB2.0 interface and microprocessor module; and the output end of the microprocessor module is respectively connected to the 5G module, Ethernet interface, RS232 & RS485 interface, PCIE2.0 / PCIE3.0 expansion interface, serial communication interface, IIC communication interface, SPI communication interface and wireless communication module.

[0056] Among them, the Ethernet interface, RS232 & RS485 interface, PCIE2.0 / PCIE3.0 expansion interface, serial communication interface, IIC communication interface and SPI communication interface are used to realize wired communication between the system control center 3 and the network interface device; the 5G module and wireless communication module are used to realize remote communication between the network interface device, 5G base station 7 and 5G receiving device.

[0057] In an exemplary embodiment, it further includes: a power module 5; the output end of the power module 5 is connected to the network access device 6 via a wired communication link.

[0058] In an exemplary embodiment, the protocols adopted by the host computer 9 include: MQTT, KafKa and IoTDB.

[0059] The embodiment of the present application provides a data communication method based on a network access device, which is executed by a computer device, specifically a computer device such as a terminal or a server, or a terminal and a server. In the embodiment of the present application, Figure 3 As shown, the method includes the following steps.

[0060] S1: Utilize the nuclear power plant distributed system 1 to transmit the sensor data collected by the instrument measurement module 2 to the system control center 3.

[0061] S2: Determine whether the currently uploaded sensor data is the same as the sensor data uploaded last time. If so, execute S3; if not, execute S4.

[0062] S3: Discard the currently uploaded sensor data.

[0063] S4: embed the currently uploaded sensor data or control instructions into different protocol segments according to permissions and classifications, and distribute the sensor data or control instructions to be uploaded to the network access device 6 using the Open Platform Communication Unified Architecture (OPC UA) protocol.

[0064] S5: Utilize the network access device 6 to monitor the amount of transmitted data and communication congestion in real time. Based on the adaptive data packaging mechanism, utilize the 5G communication link to remotely transmit the sensor data collected in real time by the instrument measurement module 2 to the 5G receiving device 8 through the 5G base station 7.

[0065] S6: By dynamically switching the communication protocol, the 5G receiving device 8 and the host computer 9 are enabled to perform bidirectional transmission to achieve stable operation of the nuclear power plant distributed system 1.

[0066] This application is based on an event trigger mechanism generated by data collection combined with data validity range control and data calculation / analysis technology, that is, the currently uploaded sensor data is compared with the last uploaded sensor data to determine whether the data needs to be uploaded, thereby reducing the amount of data transmitted to the cloud by the host computer 9 and reducing the space occupied by the cloud.

[0067] In an exemplary embodiment, S5 may be replaced by the following steps.

[0068] S51: Initialize multiple gateways in the network access device 6.

[0069] S52: Based on multiple gateways, establish a communication connection and determine the communication transmission direction, and determine whether the identity authentication is passed. If so, execute S53; if not, execute S55.

[0070] S53: monitoring the amount of transmitted data and the communication congestion in real time, and adaptively adjusting the data packaging threshold according to the communication congestion based on an adaptive data packaging mechanism.

[0071] S54: When the data volume reaches the packet threshold, the sensor data collected in real time by the instrument measurement module 2 is remotely transmitted in the form of data packets through the 5G base station 7 to the 5G receiving device 8 using the 5G communication link.

[0072] S55: End the communication.

[0073] The present application adopts an adaptive data packaging method to realize data communication of the network access device 6. This packaging method improves the efficiency of data transmission and reduces the delay time of data transmission.

[0074] In an exemplary embodiment, S6 may be replaced by the following steps.

[0075] S61: After the 5G receiving device 8 receives the data packet, it records the data packet decryption time.

[0076] S62: Switch the protocol type based on the dynamic switching communication protocol according to the data packet decryption time.

[0077] S63: uploading the data packet to the host computer 9 according to the switched protocol type, so as to achieve stable operation of the nuclear power plant distributed system 1.

[0078] This application automatically switches the communication protocol between the 5G receiving device 8 and the host computer 9 according to the complexity of the data packet decryption, thereby increasing the rate at which data is uploaded to the cloud.

[0079] In another exemplary embodiment, Figure 4 This is the operation flow chart of the 5G network access device based on this application. The specific operation steps are as follows:

[0080] Step 1-1: The nuclear power plant distributed system 1 is connected to the instrument measurement module 2 to sample the sensor data such as air pressure, temperature, current, voltage, power, etc., and all sensor data are collected to the system control center 3 through a security protocol.

[0081] Step 1-2: If there is data / command to upload, execute steps 1-3 to 1-6; otherwise, return to step 1-1.

[0082] Step 1-3: Place the data / instructions to be uploaded into different protocol segments according to permissions and classifications, and distribute the data to the network access device 6 using the OPC UA protocol.

[0083] Steps 1-4: The network access device 6 uses the 5G communication protocol to transmit the data / instructions to be uploaded to the 5G receiving device 8 through the 5G base station 7. Depending on the distance, the specific transmission process is classified as follows:

[0084] 1) If the data transmission distance is short, the data / instructions are transmitted from the first gateway in the network access device 6 to the 5G receiving device 8 via the 5G base station 7.

[0085] 2) If the data transmission distance is medium, the data / instructions are transmitted from the first gateway in the network access device 6 to the second gateway via the 5G base station 7, and then transmitted to the 5G receiving device 8 via the 5G base station 7.

[0086] 3) If the data transmission distance is long, the data / instructions are transmitted from the first gateway in the network access device 6 to the second gateway via the 5G base station 7, and then to the third gateway via the 5G base station 7; finally, they are transmitted to the 5G receiving device 8 via the 5G base station 7.

[0087] Step 1-5: The 5G receiving device 8 transmits the received data / instructions to the IoTDB of the host computer 9.

[0088] Step 1-6: The sensor data received by the host computer 9 is analyzed according to the overall requirements and performance indicators of the system, and the obtained control parameters, execution instructions and status information are uploaded to the IoTDB in real time.

[0089] Step 1-7: If it is found through analysis that the feedback information needs to be transmitted to the system execution module 4, execute steps 1-8 to 1-10; otherwise, return to step 1-2.

[0090] Step 1-8: Upload the control parameters, execution instructions and status information of IoTDB903 of the host computer 9 to the 5G receiving device 8.

[0091] Step 1-9: The 5G receiving device 8 transmits the received control parameters, execution instructions and status information to the network access device 6 via the 5G base station 7. The specific transmission process is classified as follows according to the transmission distance:

[0092] If the data transmission distance is short, the data / instructions are transmitted from the 5G receiving device 8 to the third gateway in the network access device 6 via the 5G base station 7 .

[0093] If the data transmission distance is medium, the data / instructions are transmitted from the 5G receiving device 8 to the third gateway in the network access device 6 through the 5G base station 7; then the data / instructions are transmitted from the third gateway in the network access device 6 to the second gateway in the network access device 6 through the 5G base station 7.

[0094] If the data transmission distance is medium, the data / instructions are transmitted from the 5G receiving device 8 to the third gateway in the network access device 6 through the 5G base station 7; then the data / instructions are transmitted from the third gateway in the network access device 6 to the second gateway in the network access device 6 through the 5G base station 7; finally, the data / instructions are transmitted from the second gateway in the network access device 6 to the first gateway in the network access device 6 through the 5G base station 7.

[0095] Step 1-10: The network access device 6 transmits the received control parameters, execution instructions and status information to the system control center 3 via the OPC UA protocol, and uses them as important instructions for the system execution module 4 to achieve stable operation of the nuclear power plant distributed system 1.

[0096] Figure 5 This is an operational flow chart of the communication between the system control center and the network interface device in the 5G network access device of this application. The specific operation steps are as follows:

[0097] Step 2-1: Initialize the first gateway, the second gateway, and the third gateway in the network access device 6.

[0098] Step 2-2: Establish a communication connection and determine the communication transmission direction: If the system needs to upload data / instructions, the data is transmitted from the system control center 3 to the network access device 6; if the system needs to issue data / instructions, the data is transmitted from the network access device 6 to the system control center 3.

[0099] Step 2-3: Check whether the identity authentication is passed. If the identity authentication is passed, proceed to the next step; if the identity authentication is not passed, the communication is terminated.

[0100] Step 2-4: The microcontroller 6010 in the network access device 6 monitors the amount of data transmitted by the system and the communication congestion in real time, and adaptively adjusts the data packaging threshold Nref according to the communication congestion;

[0101] Step 2-5: When the amount of data reaches the packet threshold Nref, the data is communicated between the network access device 6 and the system control center 3 in the form of packets.

[0102] Figure 6 This is the operational flow chart for transmitting data from a 5G receiving device to a host computer in a 5G network access device based on this application. The specific steps are as follows:

[0103] Step 3-1: After receiving the data packet, the 5G receiving device 8 records the time when the data packet is decrypted.

[0104] Step 3-2: Determine the length of time it takes to decrypt the data packet and proceed to the next step.

[0105] Step 3-3: If the data packet has the longest decryption time, the data is directly transmitted to IoTDB, otherwise proceed to the next step.

[0106] Step 3-4: If the decryption time of the data packet is long, the data is first converted to the Kafka protocol type and then transmitted to IoTDB. Otherwise, proceed to the next step.

[0107] Step 3-5: If the decryption time of the data packet is the shortest, the data is first transferred to the MQTT type, then from the MQTT type to the Kafka protocol type, and finally transmitted to IoTDB.

[0108] Figure 7 This is the operational flow chart for transferring data from the host computer to IoTDB in the 5G network access device of this application. The specific steps are as follows:

[0109] Step 4-1: Define the time series k = 1, 2, 3, ..., T, and the data set corresponding to the current moment is recorded as X(k).

[0110] Step 4-2: Compare the current dataset X(k) with the previous dataset X(k-1). The relative error between the two is ε = |X(k)-X(k-1)| / X(k).

[0111] Step 4-3: If the relative error ε is less than the data error threshold σ, X(k) can be not transmitted to IoTDB; otherwise, proceed to the next step.

[0112] Step 4-4: If the relative error ε is not less than the error threshold σ of the data, X(k) can be transmitted to IoTDB.

[0113] In an exemplary embodiment, a computer device is provided, such as Figure 8As shown, the computer device can be a server or a terminal. The computer device includes a processor, a memory, an input / output interface (I / O) and a communication interface. The processor, the memory and the input / output interface are connected via a system bus, and the communication interface is connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data communication data based on a network access device. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a data communication method based on a network access device is implemented.

[0114] In an exemplary embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor implements the above method when executing the computer program.

[0115] In an exemplary embodiment, a computer-readable storage medium is provided, storing a computer program, which implements the above method when executed by a processor.

[0116] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0117] In this application, all actions to obtain signals, information or data are carried out in compliance with the relevant data protection laws and policies of the country where they are located and with the authorization given by the owner of the corresponding device.

[0118] The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processors involved in the various embodiments provided herein may include, but are not limited to, general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic units, data processing logic units based on quantum computing, and the like.

[0119] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0120] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core concept of this application. At the same time, for those skilled in the art, based on the concept of this application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A data communication device based on a network access device, characterized in that: include: Nuclear power plant distributed system, instrument measurement module, system control center, system execution module, network access equipment, 5G base station, 5G receiving equipment and host computer; The output end of the nuclear power plant distributed system and the input end of the instrument measurement module are connected via a hardware connection line; the output end of the instrument measurement module and the system control center are connected via a wired communication link; the system control center and the input end of the system execution module and the network access device are connected via a wired communication link; the output end of the system execution module and the nuclear power plant distributed system are connected via a hardware connection line; The network access device is used to monitor the amount of transmitted data and communication congestion in real time, and based on an adaptive data packaging mechanism, transmit the data collected in real time by the instrument measurement module remotely via the 5G communication link to the 5G receiving device through the 5G base station; The 5G receiving device and the host computer perform bidirectional transmission by dynamically switching the communication protocol; the data is the sensor data collected by the instrument measurement module.

2. The data communication device based on the network access device according to claim 1, characterized in that: The system control center specifically includes: a system control module, a sensor acquisition module, a status monitoring module, a calculation module and a data sending module; The system control module is used to manage the data collection process; wherein, the management includes configuring the collection point information corresponding to each sensor in the instrument measurement module, the validity of the collected data, the data forwarding method, the data forwarding protocol and the data processing rules; the validity includes the valid interval of the data and the data exception handling mechanism; The sensor acquisition module is used to connect to each sensor through a wired communication link, collect digital signals or analog signals generated by the sensor as needed, and transmit the collected signals to the status monitoring module; The state monitoring module is used to verify the data based on the configuration information of the system control module after receiving the data, and transfer the data to the calculation module for calculation; The calculation module is used to determine whether the data needs to be calculated. If so, the calculated data is delivered to the data sending module. If not, the data is directly delivered to the data sending module. The data sending module is used to send the data to the data receiving end according to the configuration information of the system control module after receiving the data.

3. The data communication device based on the network access device according to claim 2, characterized in that: The collection point information includes control parameters, execution instructions and status information; The control parameter includes a sampling point data value threshold; the execution instruction includes an on / off instruction generated according to the sampling point data value threshold; the status information includes a periodic communication status judgment of the sampling point and a judgment of whether the sampling point data value is within a valid range.

4. The data communication device based on network access equipment according to claim 1, characterized in that: The network access device specifically includes: multiple gateways; The plurality of gateways include a first gateway, a second gateway, and a third gateway; The first gateway is used to implement short-range 5G communication; The second gateway is used to implement medium-range 5G communication; The third gateway is used to achieve long-distance 5G communication.

5. The data communication device based on network access equipment according to claim 1, characterized in that: Also includes: Power module; The output end of the power module is connected to the network access device via a wired communication link.

6. A data communication method based on a network access device, characterized in that: The data communication method based on a network access device is applied to the data communication apparatus based on a network access device according to any one of claims 1 to 5, and the data communication method based on a network access device includes: Utilize the distributed system of the nuclear power plant to transmit the sensor data collected by the instrument measurement module to the system control center; Determine whether the currently uploaded sensor data is the same as the last uploaded sensor data; If yes, discard the currently uploaded sensor data; If not, embed the currently uploaded sensor data or control instructions into different protocol segments according to permissions and classifications, and distribute the sensor data or control instructions to be uploaded to the network access device using the OPC UA protocol; Utilize the network access device to monitor the amount of transmitted data and communication congestion in real time, and based on an adaptive data packaging mechanism, utilize the 5G communication link to remotely transmit the sensor data collected in real time by the instrument measurement module to the 5G receiving device through the 5G base station; By dynamically switching the communication protocol, the 5G receiving device and the host computer can perform two-way transmission to achieve stable operation of the distributed system of the nuclear power plant.

7. The data communication method based on the network access device according to claim 6, characterized in that: The network access device is used to monitor the amount of transmitted data and communication congestion in real time. Based on an adaptive data packaging mechanism, the 5G communication link is used to remotely transmit the sensor data collected in real time by the instrument measurement module to the 5G receiving device through the 5G base station, specifically including: Initializing multiple gateways in the network access device; Based on multiple gateways, establish communication connections and determine the communication transmission direction, and determine whether identity authentication is passed; If so, monitor the amount of data transmitted and the communication congestion in real time, and based on an adaptive data packaging mechanism, adaptively adjust the data packaging threshold according to the communication congestion; When the data volume reaches the packet threshold, the sensor data collected in real time by the instrument measurement module is remotely transmitted in the form of data packets through the 5G base station to the 5G receiving device using a 5G communication link; If not, end the communication.

8. The data communication method based on network access equipment according to claim 7, characterized in that: By dynamically switching the communication protocol, the 5G receiving device and the host computer can perform two-way transmission to achieve stable operation of the nuclear power plant distributed system, specifically including: After the 5G receiving device receives the data packet, the data packet decryption time is recorded; Switching the protocol type based on the dynamic switching communication protocol according to the data packet decryption time; According to the switched protocol type, the data packet is uploaded to the host computer to achieve stable operation of the distributed system of the nuclear power plant.

9. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the data communication method based on a network access device according to any one of claims 6 to 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the data communication method based on a network access device according to any one of claims 6 to 8 is implemented.

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