348 results about "Ethernet communication" patented technology

The invention provides a vehicle-mounted Ethernet physical simulation demonstration system and method based on a time sensitive network, the system comprises an Ethernet communication subsystem, a TSN communication subsystem and a simulation upper computer, a TSN protocol configuration module receives an instruction of the simulation upper computer through the Ethernet and dynamically adjusts protocol parameters; the vehicle-mounted Ethernet physical simulation demonstration system constructs a vehicle-mounted Ethernet physical topology through hardware nodes of the vehicle-mounted Ethernet physical simulation demonstration system, realizes protocol function verification in combination with the TSN communication subsystem, and realizes communication performance analysis, scheduling mechanism optimization and real-time performance test under multiple scenes through the simulation upper computer. Cooperative work and mutual compatibility of time-sensitive network scheduling algorithms are detected and verified, and a reliable simulation platform is provided for interconnection and intercommunication of a vehicle-mounted network architecture and access of equipment such as any sensor.

The invention provides a vehicle-mounted multi-communication protocol test mainboard, and the mainboard comprises a CANFD communication module which is used for transmitting a test frame to a to-be-tested device under the condition that a CANFD test instruction is received; receiving a response frame corresponding to the test frame sent by the to-be-tested device; the vehicle-mounted Ethernet communication module is used for converting the standard Ethernet test signal into a vehicle-mounted Ethernet test signal and sending the vehicle-mounted Ethernet test signal to the equipment to be tested; receiving a vehicle-mounted Ethernet response signal which is sent by the equipment to be tested and corresponds to the vehicle-mounted Ethernet test signal, and converting the vehicle-mounted Ethernet response signal into a standard Ethernet response signal; the processor module is used for generating a CANFD test instruction and a standard Ethernet test signal; and generating an equipment test report of the to-be-tested equipment according to the response frame and the standard Ethernet response signal. According to the invention, the CANFD communication module and the vehicle-mounted Ethernet communication module are integrated, and the processor module is matched to carry out coordination control, so that automatic joint testing of different communication protocols is realized.

The invention discloses a vehicle-mounted communication safety protection method and related equipment, and relates to the technical field of vehicle-mounted communication, and the method comprises the steps: generating a multi-dimensional normalized time sequence feature vector according to the service call information, the message entropy value and the event group response information of vehicle-mounted Ethernet communication; performing integrity verification on the vehicle end detection model through the trusted execution environment to obtain a verification result; when the verification result is that the verification is passed, inputting the multi-dimensional normalized time sequence feature vector into a vehicle end detection model for anomaly detection, and determining a real-time threat level; and performing defense response on the vehicle-mounted Ethernet communication according to the real-time threat level. Through combination of time sequence analysis, a trusted execution environment, local real-time detection and dynamic defense, the identification capability of unknown attacks is improved, the detection model is prevented from being tampered, the detection time delay is reduced, and faster, more accurate and more stable vehicle-mounted network security protection can be realized.

The embodiment of the invention provides a data transmission method and device, a storage medium and electronic equipment, and relates to the field of computers, the data transmission method is applied to a first system on chip in a plurality of systems on chip in a computing platform, and the plurality of systems on chip further comprise a second system on chip. Comprising the steps that under the condition that target data is about to be sent to the second system-on-chip, the target data is stored in a target direct memory access memory in the computing platform, and the target direct memory access memory is a direct memory access memory corresponding to the first system-on-chip and the second system-on-chip; and sending a notification message to the second system-on-chip based on an Ethernet communication link between the first system-on-chip and the second system-on-chip, the notification message being used for indicating the second system-on-chip to acquire the target data from the target direct memory access memory.

This invention provides a method, apparatus, electronic device, and readable storage medium for redundancy control in ring network communication, relating to the field of vehicle-mounted communication. The method includes: controlling nodes in the vehicle-mounted ring network system to detect abnormal Ethernet link states and broadcast these states via CAN communication; a master control node can determine whether to switch redundant links based on the relevant link abnormal states of each node; if switching is required, a switching control message is broadcast via CAN communication; and each node can adjust its port settings based on the switching control message. By implementing Ethernet link detection and redundant link switching control based on Ethernet communication itself, and by integrating the functions of determining whether to switch links based on abnormal link states and broadcasting switching control messages into the master control node, the requirements for nodes other than the master control node are reduced. This lowers the hardware resource requirements of the vehicle-mounted ring network communication redundancy control scheme compared to existing solutions, making it simpler, easier to implement, and more usable.

The invention discloses a software and hardware collaborative RDMA network card SR-IOV parameterization configuration method, which can reduce redundant calculation steps through the collaboration of FPGA hardware acceleration and driving parameterization configuration, greatly improves the power consumption compared with a traditional pure software design scheme, and enables the VF performance of a network card to be close to the level of a physical network card. According to the method, the QP number, the MAC address and the RDMA enabling mark of the VF are dynamically adjusted through parameterization of the configuration file, and the operation and maintenance management efficiency can be effectively improved without manual item-by-item configuration; forwarding and isolation of CF traffic are achieved through the FPGA hardware layer, traffic sniffing between virtual machines is prevented, and safety is enhanced; the realized VF supports standard Ethernet communication and RDMA at the same time, the resource utilization rate is improved, and the requirements of hybrid scenes such as high performance computing (HPC) and cloud computing are met.

The invention relates to the technical field of Ethernet communication and digital information transmission, and discloses an Ethernet-based time synchronization acquisition method, device and equipment and a medium, and the method comprises the steps: obtaining initial network time based on a network time protocol and a precise time protocol; recovering the synchronous clock signal from the Ethernet physical layer signal and generating a trigger pulse signal aligned with a second boundary to generate second-level reference time; the trigger pulse signal and the synchronous clock signal are used for executing high-frequency counting accumulation to generate nanosecond-level fine time; performing frequency division processing on the synchronous clock signal based on the sampling rate configuration parameter to obtain a sampling driving clock; the analog-to-digital conversion unit is triggered at the effective jump edge of the sampling driving clock to sample and latch nanosecond-level fine time to generate a sampling timestamp, and the sampling timestamp is output in combination with sampling data. According to the method, time recovery, time refinement and sampling time locking are realized through a unified time base, so that sampling action and time counting are accurately aligned, and the data synchronization precision and consistency of distributed acquisition nodes are improved.

The invention discloses a security-level DCS redundant communication system, a communication method, equipment and a medium, and relates to the technical field of communication. The system comprises a first TU control station and a TU control station executing a gateway function, wherein the TU control station executing the gateway function comprises a second TU control station and at least two Ethernet communication modules arranged on a main control box backboard of the second TU control station; wherein the first TU control station and the second TU control station are in communication connection through a one-way receiving link, and the Ethernet communication module adopts a parallel working mode and respectively establishes communication connection with a non-security-level DCS side gateway to form a redundant communication link between the TU control station executing a gateway function and the non-security-level DCS. Redundant communication and fault link switching under the condition that a non-security-level DCS does not need to be transformed are achieved.

The invention discloses an intelligent spraying system and method for a coal mine stopping agent, and relates to the field of coal mine safety. Comprising a programmable controller, an electromagnetic controller, an audible and visual alarm, a flow meter, a pressure transmitter, a temperature sensor, a vibration sensor, a liquid level transmitter, a stopping agent concentration sensor, a stopping pump, a scraper feeding machine, a liquid tank and an electric ball valve set which are all connected with an underground industrial ring network switch. The ground server is connected with the ground industrial ring network switch; the ground industrial ring network switch is connected with the underground industrial ring network switch through an Ethernet communication line; the scraper feeding machine is communicated with the premixing tank through a feeding pipeline; the premixing tank is communicated with the liquid tank through a conveying pipeline; one end of the inhibition pump communicates with the liquid tank, and the other end of the inhibition pump communicates with the electric ball valve set through a main pipeline so that ground remote monitoring and underground inhibitor preparation spraying control can be conducted. In order to solve the problem that existing inhibitor spraying and fully mechanized coal mining face operation procedures are not synchronous, automatic spraying accurate control and real-time monitoring are achieved.

The utility model discloses a PLC (programmable logic controller) control system of an ultra-long stroke oil pumping unit, which belongs to the technical field of oil pumping unit control systems and comprises a touch screen, a PLC, an RTU (remote terminal unit) module, an electrical parameter module and an oil pumping unit driving mechanism. Wherein one RS485 communication interface is connected with a pumping unit driving mechanism and an electric parameter module, the other RS485 communication interface is connected with an RTU module, and the Ethernet communication interface is connected with a touch screen. And the PLC controller completes the operation of a real-time indicator diagram and a historical indicator diagram. The system is simple in structure, reasonable in design, strong in practicability, high in reliability, strong in expansibility, flexible in network communication, low in implementation cost and convenient to popularize and use. The super-long stroke pumping unit is automatically controlled through the control system, the overall stability of the system can be improved, the flexibility and safety of the system are improved, and the failure rate is reduced. And in the aspect of stroke adjustment, automatic adjustment can be achieved, and application is convenient.

The invention provides an Ethernet communication test method, device, system, equipment and medium, and relates to the technical field of rail transit, the method comprises the following steps: after an Ethernet communication link between display equipment and a train control unit is established, receiving a first input signal of a user on a communication control interface of the display equipment; sending a first input signal to the train control unit through the switch, and receiving response data from the train control unit; the response data is determined by the train control unit according to the communication identifier to be inquired and the first offset parameter; analyzing the response data to obtain an original byte sequence, a bit-level analysis result and a physical meaning, and displaying the original byte sequence, the bit-level analysis result and the physical meaning on a data monitoring interface of the display equipment; performing real-time verification on the response data, marking abnormal data and recording an abnormal occurrence moment; and generating a first test result based on the exception data, the exception occurrence moment and the response data. According to the scheme, the accuracy of network display screen interface troubleshooting and port consistency testing is effectively improved.

Disclosed in the present invention are a hot standby method and system for integrated driver machine interface devices. The method comprises: firstly, determining two driver machine interface devices as a master driver machine interface device and a standby driver machine interface device in a hot standby mode, wherein the master driver machine interface device comprises a master screen, and the standby driver machine interface device comprises a standby screen; and then, the master screen registering a first bus port for communication between the master driver machine interface device and a vehicle-mounted device, establishing a communication connection and information interaction with the vehicle-mounted device, transparently transmitting received information interaction content of the vehicle-mounted device to the standby screen by means of Ethernet communication for synchronous display, and sending received standby screen reply content to the vehicle-mounted device by means of the first bus port. The hot standby method ensures real-time consistent display of driver machine interfaces; and one first bus port for communication with a vehicle-mounted device is used, thereby reducing resource usage and greatly improving the system availability.

The invention discloses an online one-stop new energy power station rapid power regulation portable test system. The system comprises a multi-core processor and a data acquisition device. The data acquisition equipment acquires three-phase voltage and three-phase current analog quantity, signal analog quantity and external trigger calibration signal input quantity of a power grid, and outputs AGC / AVC remote regulation signal output quantity; the multi-core processor comprises test software, an Ethernet communication interface and a USB (Universal Serial Bus) interface; the test software comprises a test function selection module, a data acquisition and storage module, a digital filtering module, a signal frequency measurement and amplitude measurement module, a power calculation module, an AGC / AVC communication module and a test result analysis and report automatic generation module. The system fully considers the diversity of field test schemes according to the high automation and portability requirements of the new energy power station rapid power regulation field test, has the characteristics of online one-stop, portability, high compatibility and the like, and provides an efficient and accurate test scheme for the new energy power station rapid power regulation.

The invention relates to the technical field of communication and provides a method and a device for Ethernet communication with redundancy hot switching capability. The method comprises the following steps: uniformly monitoring respective link states of a plurality of Ethernet links comprising a main link and at least one standby link through a link state monitoring unit deployed on a hardware layer; physical layer data path switching among a plurality of Ethernet links is realized through a physical layer switching circuit; through an automatic switching controller which is deployed on a hardware layer and is respectively connected with a link state monitoring unit and a physical layer switching circuit, the physical layer switching circuit is controlled based on respective link states of a plurality of Ethernet links, so that redundant hot switching capability is provided for physical layer data paths associated with the plurality of Ethernet links. Therefore, hardware layer redundancy switching of Ethernet communication is realized, communication interruption is avoided, the switching process has no perception and no packet loss, and the system stability is improved.

The invention discloses a vehicle-mounted Ethernet communication test method and related equipment, and relates to the technical field of vehicle-mounted Ethernet, and the method comprises the steps: carrying out the communication test fine tuning of a general large language model, and obtaining a test case generation model adaptive to a target vehicle-mounted Ethernet communication protocol; generating a target test case for the to-be-tested communication component based on a test case generation model; running the target test case based on the to-be-tested communication component; and determining the security vulnerability of the to-be-tested communication component according to the abnormal feedback information of the to-be-tested communication component. According to the method, the test cases are automatically generated and run in batches through fine tuning of the large language model, different vehicle-mounted Ethernet communication protocols are adapted, abnormal feedback is analyzed in real time to accurately find security vulnerabilities, and the test efficiency, the automation degree and the system security can be improved.

For security reasons, a one-way Ethernet communication link is implemented to segregate edge devices for an autonomous vehicle (AV) from the AV compute system. A non-feature rich backchannel allows very limited amounts of data to be transmitted from the edge devices side to the AV compute side. It is a challenge to query information about the edge devices when the backchannel only allows enumerated type data values to be transmitted. To address this concern, the customer-facing access point includes a relay endpoint that operates as a proxy to a web server that manages the edge devices and encodes responses as enumerated type data values to be transmitted over the backchannel.

The invention relates to the technical field of vehicle-mounted Ethernet communication, in particular to a vehicle-mounted Ethernet bus fault injection test method and system based on CANoe, and the test method comprises the following steps: 1, determining a fault injection object; step 2, configuring at least two Ethernet networks by using test software and hardware equipment, and loading an Arxml database; step 3, creating a virtual gateway node between the tested ECUs, and using a CAPL programming language to realize routing and monitoring of a data packet; step 4, realizing an injection relation between the original signal value and the changed signal value by calling a database and a CAPL script, and simulating a fault signal; 5, the state of the vehicle-mounted Ethernet network is monitored in real time, and system response after fault injection is recorded and analyzed. The vehicle-mounted Ethernet bus fault injection testing method and system based on the CANoe can be used for simulating fault phenomena of a whole vehicle under various working conditions, and related actions are made and fault information is recorded when abnormal signals are detected and received.

The embodiment of the invention provides a method, a device and a computer readable medium for automatically measuring service interruption time of point-to-point or multi-point Ethernet service during path switching. In the method, a first device detects a continuity loss defect (dLOC) based on a CCM set to determine a first timestamp indicating a start of a service interrupt and a second timestamp indicating an end of the service interrupt. The first device then sends the first timestamp and the second timestamp to the second device. The second device determines a service interruption time of the multipoint Ethernet service based on the at least one first timestamp and the at least one second timestamp received from the plurality of first devices. Alternatively, the apparatus detects a continuity loss defect (dLOC) or a remote defect indication defect (dRDI) based on the CCM set, and determines a first timestamp indicating a start of the service interruption, and a second timestamp indicating an end of the service interruption, thereby determining a service interruption time for the multipoint Ethernet service.

The application relates to an Ethernet node data sending method based on a hybrid network of Ethernet and FC-AE-1553, belongs to the technical field of FC-AE-1553 and Ethernet hybrid network communication, and solves the problems of complex FC-AE-1553 and Ethernet communication network structure, large volume and high cost in the prior art. The Ethernet node data sending method comprises the following steps: receiving an Ethernet data frame sent by a source Ethernet node, determining the node type to which a destination node of the Ethernet data frame belongs; if the node type to which the destination node belongs is an FC-AE-1553 node, analyzing the Ethernet data frame to obtain all valid data contained in a data packet and determining whether the destination node is an NC node or an NT node; encapsulating the valid data contained in the data packet according to an FC-AE-1553 protocol format to obtain a command data sequence or a state data sequence corresponding to the data packet, and sending the command data sequence or the state data sequence to the destination node. Data transmission from Ethernet to FC-AE-1553 is realized.

The utility model discloses a control system for a wet-method pulverizing production line, which relates to the technical field of mechanical pulverizing equipment and comprises an industrial personal computer and an industrial router connected with the industrial personal computer through Ethernet communication. The jaw crusher control component, the cone crusher control component, the transfer stock bin control component, the double-roller flour mill control component, the vibrating screen control component, the separating tower control component, the magnetic separator control component, the second dewatering screen control component and the first conveying belt control component are connected with the industrial router through Ethernet communication. A first conveying belt control component, a second conveying belt control component, a third conveying belt control component, a fourth conveying belt control component, a first conveying pump control component and a water spraying device control component; the device has the characteristics that the device is convenient to operate and control, one-key start, one-key stop and one-key sudden stop of the whole line can be realized, and the operation data of the whole line can be automatically stored; the device is matched with a wet-method pulverizing production line and is suitable for preparing mineral powder such as quartz sand powder, dolomite powder and calcium carbonate powder.

The invention provides an industrial field instrument communication system, an industrial field instrument and a communication method thereof. The industrial field instrument communication system comprises: a processing unit for processing sensor data and generating a main process variable; the analog output module is connected with the processing unit and used for converting the main process variable into an analog current signal of a first specification and outputting the analog current signal to a two-wire system current loop; the HART modulation-demodulation module is used for superposing a low-frequency FSK digital signal on the analog current signal; the digital communication module is connected with the processing unit and comprises a physical layer adaptation unit, and the physical layer adaptation unit is used for supporting at least two Ethernet physical layer standards with different electrical specifications and rates; wherein the analog current signal and the Ethernet digital communication signal of the digital communication module can be simultaneously and independently transmitted on respective physical media. The industrial field instrument communication system disclosed by the invention can be compatible with Ethernet communication while reserving the existing infrastructure.

The invention discloses an Ethernet communication system based on MicroBlaze and a data transmission method. The system comprises a MicroBlaze processor, an Ethernet UDP (User Datagram Protocol) stack module, a cross-clock domain transmission module, an AXI-Stream FIFO (First In First Out) module and a composite bit width conversion module. The MicroBlaze drives each module through an AXI bus, intervention of a DDR controller and DMA is not needed, deviation between a processor clock and an Ethernet clock is eliminated through asynchronous FIFO, and data integrity and transmission stability are ensured; and the composite bit width conversion module adopts a five-stage pipeline processing architecture and is used for synchronously realizing splitting and merging of 32-bit and 8-bit Ethernet data, zero value filling and data alignment. The invention constructs a DMA / DDR-free architecture with less resource occupation and low transmission delay, realizes stable and reliable Ethernet transmission on an FPGA platform, and is suitable for the field of industrial control with strict real-time requirements.

The invention discloses a high-speed Ethernet communication node secondary queue message receiving method and a high-speed Ethernet communication node secondary queue message receiving system, which enable a high-speed Ethernet communication node to send messages by adopting multiple links, improve independence among subsystem applications in a multi-core and multi-task scene, avoid mutual exclusion operation of critical resources of a sending queue, and improve the service life of the high-speed Ethernet communication node. The execution efficiency of a message sending interface is optimized, and the network throughput rate and the network bandwidth of the high-speed Ethernet can be developed; the blocking operation of each partition application in the partition system caused by the message sending access sending queue and descriptor is effectively avoided, the execution time of the partition application message sending is further optimized and improved, the receiving buffer area is managed by adopting the receiving idle FIFO queue, the receiving buffer area does not need to be dynamically managed by applying for a large buffer pool, and the message sending efficiency is improved. Therefore, the overhead of memory resources is reduced, and the system overhead caused by applying or releasing the receiving buffer area is also avoided; and the network communication bandwidth and throughput are improved, and the capacity expansion and speed increase of the network are facilitated.

The application provides a vehicle-mounted Ethernet communication plug-in. The plug-in comprises an MCU unit, a switching chip, a PHY chip, a high-speed signal connector and a power connector. The MCU unit is configured to configure and manage the switching chip. The switching chip is connected with the PHY chip, the high-speed signal connector and the power connector, and is configured to provide at least two gigabit Ethernet interfaces and at least nine first hundred megabit Ethernet interfaces. One of the two gigabit Ethernet interfaces provides DC48V standard POE power supply externally through the power connector, and the other one of the two gigabit Ethernet interfaces is connected with a vehicle-mounted main control unit through the high-speed signal connector. The at least nine first hundred megabit Ethernet interfaces are respectively connected with one service unit through the high-speed signal connector.

The invention provides an EtherCAT slave station gateway for semiconductor temperature control equipment. The EtherCAT slave station gateway comprises a hardware layer and a software layer, wherein the hardware layer comprises an embedded semiconductor industrial equipment communication gateway, an integrated power supply module, a main control module, an Ethernet communication module, an EtherCAT slave station module and a 24V input and output port module; the software layer is an embedded software system with a layered architecture, is divided into an application layer, a protocol layer and a hardware abstraction layer, and realizes business logic processing, communication protocol conversion and software and hardware interaction decoupling. Through cooperative work of hardware and software, data transmission based on the EtherCAT protocol between the semiconductor production equipment host and the Chiller can be achieved, the real-time performance, accuracy and system maintainability of data transmission are improved, and the requirements of semiconductor production for high precision and high stability of temperature control are met.

The utility model discloses a communication protocol conversion board and a train control system, and the communication protocol conversion board comprises an Ethernet communication interface module which receives coded data transmitted by a train control master control module through an Ethernet interface and uploads track circuit state data to the train control master control module; the CAN communication interface module is used for acquiring CAN data of two CAN buses of the track circuit equipment through two CAN interfaces and sending two pieces of state inquiry data to the track circuit equipment; the main control logic module is used for receiving the coded data, generating two identical state inquiry data according to the coded data, sending the two identical state inquiry data to the CAN communication interface module, converting the received first CAN data and second CAN data into track circuit state data, storing the track circuit state data in a first buffer, and sending the track circuit state data to a second buffer when the coded data is received in the next period; and sending the track circuit state data stored in the first buffer to a train control master control module. According to the invention, network port resources of the train control master control module can be saved, and the real-time performance and the high efficiency of track circuit state data response are improved.

This invention discloses an FPGA-based visible light Ethernet rate-adjustable communication method and system, relating to the field of visible light communication equipment technology. It includes: an off-chip PHY chip, a MAC core, and an FPGA rate conversion and flow control module connected sequentially. The FPGA rate conversion and flow control module is connected to both an FPGA transmit control module and an FPGA receive control module. The FPGA transmit control module and the FPGA receive control module are connected to transceiver circuits, which are then connected to an LED and a photodiode, respectively. This invention addresses the need for visible light-Ethernet communication interface conversion, deeply integrating visible light communication with Ethernet access technology, while simultaneously solving the problem of the traditional single rate of visible light Ethernet, thus broadening the application scenarios of visible light communication.

The utility model discloses a DDC network controller structure based on Ethernet communication and control, which comprises a box body, the box body comprises a bottom shell and a shell cover, the bottom of the bottom shell is fixedly connected with a first circuit board, the first circuit board is connected with a supporting column, the supporting column is connected with a second circuit board, one side of the shell cover close to the bottom shell is fixedly connected with a third circuit board, and the third circuit board is connected with a second circuit board. A display screen is arranged on the third circuit board and is positioned in the display window; the first circuit board is fixedly connected with a first data line interface, the second circuit board is fixedly connected with a second data line interface, and the first data line interface and the second data line interface are located on the two sides of the box body respectively. According to the utility model, the circuit board is divided into the first circuit board, the second circuit board and the third circuit board which are arranged up and down, thereby reducing the installation size of the controller, and facilitating the arrangement and installation of the controller; and the first data wiring port and the second data wiring port are arranged on different sides, so that data lines can be conveniently connected.

The application discloses a vehicle-mounted Ethernet centralized data management system and method, relates to the technical field of vehicle-mounted Ethernet communication based on a time-sensitive network, and comprises an ECU identification module, a current parameter analysis module, a historical parameter analysis module and a parameter screening module.The ECU identification module is used for extracting ECU units.The current parameter analysis module is used for obtaining the mention rate and the importance of each basic parameter according to the ECU units, and obtaining a first parameter probability.The historical parameter analysis module is used for extracting the query rate and the modification rate of historical parameters, and obtaining a second parameter probability.The parameter screening module is used for obtaining target basic parameters according to the first parameter probability and the second parameter probability.The shortcut entry module is used for obtaining network entries according to parameter entries, and setting shortcut entries according to the network entries.The entity structure generation module is used for generating a distributed data entity structure.The application has the effect of improving the efficiency and accuracy of parameter query and modification of the vehicle-mounted Ethernet in a test development process.

The invention relates to the technical field of avionics communication. The invention provides an airborne satellite communication processing terminal. The airborne satellite communication processing terminal comprises a data control unit, a satellite data processing unit and a network processing unit, the satellite data processing unit sends data sent by a satellite to the data control unit; the data control unit performs communication protocol analysis and data format conversion on the received data; the data control unit sends the data subjected to communication protocol analysis and data format conversion to the network processing unit; the network processing unit encapsulates the received data into an Ethernet frame and then sends the Ethernet frame to the built-in network; the built-in network sends the received data to the data control unit through the Ethernet communication interface; and the data control unit encrypts the received data, converts the encrypted data into satellite signals and sends the satellite signals to a satellite. Satellite communication is converted into a universal Ethernet communication interface, and the compatibility problem of multi-platform interfaces is solved.