213 results about "Gigabit Ethernet" patented technology

The invention provides a PCIe (Peripheral Component Interconnect Express)-Ethernet high-speed data transmission system based on an FPGA (Field Programmable Gate Array), which belongs to the field of communication of digital circuits and comprises a PCIe interface module, a gigabit Ethernet interface module, a DDR3 (Double Data Rate 3) cache module and an AXI (Advanced eXtensible Interface) bus control module. The high-speed data transmission capability of the PCIe interface and the flexible port expansion capability of the gigabit Ethernet interface are integrated, and a user datagram protocol (UDP)-based control logic is constructed to realize data interaction between the PCIe and the gigabit Ethernet, so that high-speed and reliable data transmission is realized; and the high requirements of a high-speed signal acquisition and playback system and the like on the data transmission rate and reliability are met.

The invention discloses a flow chemistry intelligent experiment platform which comprises a direct-current constant-voltage power supply, a PC, a main control board, an electric energy metering module, a temperature control module, an electromagnetic valve, a stepping motor, a flow chemistry unit and an image sensor. The PC is provided with a webpage operation end, a control instruction is transmitted to the main control board through the gigabit Ethernet, and the main control board adopts a hardware architecture of FPGA and ARM co-processing and can accurately control devices such as an electromagnetic valve and a stepping motor to carry out experiments according to set reaction conditions; and in the reaction process, images acquired by the sensor and experimental data such as temperature, pressure, pH and the like are synchronously transmitted to the PC through the main control board to be displayed, analyzed and stored. The device provides maximum flexibility for the flowing chemical reaction, realizes integrated control of various reaction conditions such as temperature, pressure, pH and flow velocity, has the advantages of reasonable structure, high degree of freedom, good interactive experience and the like, and is suitable for various scenes such as classroom experiment teaching, student exploration experiment, college laboratory scientific research and the like.

The invention belongs to the technical field of central control screen performance testing, and particularly relates to a new energy automobile central control screen performance testing device which comprises a dynamic extreme environment reproduction cabin, a bionic man-machine interaction behavior simulator, a multi-modal parameter synchronous acquisition array, an intelligent decision-making level analysis and evaluation engine and a holographic visualization decision-making support terminal. Physical environment support is provided through the dynamic extreme environment reproduction cabin, environment parameters of the dynamic extreme environment reproduction cabin are synchronized to the multi-modal parameter synchronous acquisition array in real time through the CAN bus, and operation data generated by the bionic man-machine interaction behavior simulator and performance indexes acquired by the multi-modal parameter synchronous acquisition array are preprocessed by the edge computing node and then are transmitted to the multi-modal parameter synchronous acquisition array. The holographic visual decision support terminal is transmitted to the intelligent decision level analysis and evaluation engine through the gigabit Ethernet, and an evaluation report generated by the intelligent decision level analysis and evaluation engine drives the holographic visual decision support terminal to display a result, so that the construction of a closed-loop test system is realized, the test efficiency and the performance evaluation accuracy are remarkably improved, and the automation level and the intelligent level are high.

The invention relates to the technical field of industrial automation, and provides a master-slave distributed multi-machine asynchronous system sampling synchronization method and system, and the method comprises the steps: after a host device is powered on and started, a synchronous time synchronization message is sent to a slave device through a gigabit Ethernet optical port at the whole second moment; the slave devices are responsible for data sampling and receiving synchronous time synchronization messages from the host device, and the second starting time recorded by each slave device is synchronized with the second starting time of the host device after being subjected to delay compensation processing; the sampling CPU module of each slave device packs and frames the sampling data and the corresponding relative time mark to form a sampling data frame, and the sampling data frame is sent to the slave device of the previous node in real time through a gigabit Ethernet optical port; the CPU module of the host device receives the sampling data frames sent by the slave devices, and the sampling data of the slave devices are synchronously aligned through the relative time marks of the sampling data frames, so that the data sampling synchronization of the multi-machine asynchronous system is realized. The method is high in universality, and synchronization of sampling data of the slaves can be guaranteed.

The invention discloses a data processing method and device and belongs to the technical field of communication. The method is applied to the flexible Ethernet (FlexE), and the method is applied to the flexible Ethernet (FlexE). The method comprises: receiving an initial data stream sent by a FlexE instance, periodically inserting a filling sequence in the initial data stream to obtain a first data stream, the first data stream comprising the periodically appearing filling sequence, the filling sequence comprising continuous n filling code blocks, and n being an integer greater than or equal to 4. The invention provides a FlexE (FlexE)-oriented method capable of inserting more filling code blocks into a data stream, which can be suitable for PHY (Physical Layer) interfaces with higher rate, such as a 800 gigabit Ethernet (GE) PHY interface, a 1.6 TE PHY interface and the like, and can adapt to the evolution of the Ethernet standard.

The invention provides a development board based on a secure real-time bus SRB chip, and relates to the technical field of power electronics. The development board comprises any one or more of an SRB real-time single-twisted pair 100M Ethernet interface, an SRB real-time standard gigabit Ethernet interface, an SRB external memory interface EMIF parallel interface, an SRB serial peripheral interface SPI serial interface, an SRB configuration universal asynchronous receiver / transmitter UART serial port, an ARM RS422 serial port, an RS232 serial port, a CAN interface, an ARM UART serial port, an ARM 100M network port, an ARM JTAG interface and a power supply interface. According to the method, not only is the security bus characteristic test of the SRB chip concerned, but also other key function modules (such as an Ethernet interface, a memory interface, a serial peripheral interface and the like) are covered, so that a developer can more comprehensively evaluate the overall performance and reliability of the SRB chip, not just the security bus part.

The invention belongs to the technical field of network protocol transmission, and discloses a gigabit Ethernet engineering module division method and system. According to the method, the gigabit Ethernet engineering system is decomposed into a plurality of sub-modules according to obtained function requirement information of the gigabit Ethernet engineering system, and the sub-modules are further continuously decomposed into sub-modules of the next level until the design requirement of the gigabit Ethernet engineering is met. According to the method, codes have better reusability, repeated work among multiple designs can be reduced, repetition is avoided, the working efficiency is improved, the clock domains of different modules are relatively independent, and the boundary among the cross-clock-domain designs is clearer.

The invention relates to a forwarding control method and device, equipment and a medium, and relates to the technical field of communication. The method comprises the following steps: receiving a target data packet sent by a target terminal through a first gigabit Ethernet media access controller GMAC; wherein the first GMAC corresponds to a local area network side; under the condition that the target data packet is a first type of data packet, forwarding the target data packet through a second GMAC based on the forwarding table; wherein the first type of data packets are data packets which do not need to be processed by an application program and are forwarded based on a basic network protocol; the second GMAC corresponds to a wide area network side; under the condition that the target data packet is the second type of data packet, processing the target data packet through the application program, and forwarding the target data packet through the second GMAC after processing; wherein the second type of data packets are data packets which need to be forwarded after being processed by the application program. By adopting the method, intelligent forwarding control of the data packet can be realized.

The invention discloses a data network interaction system for rail transit data transmission, which relates to the technical field of data transmission and comprises a data acquisition module, an intelligent exchange scheduling module, a real-time processing module and a high-reliability transmission guarantee module. And high-speed and reliable transmission is ensured through a 10-gigabit point-to-point direct connection channel, and meanwhile, continuity is ensured by adopting a redundant link, so that efficient, stable and real-time processing of rail transit data is realized. According to the invention, a high-speed dedicated channel is constructed through direct connection of the 10-gigabit Ethernet, and hierarchical transmission of multi-source data is realized in combination with an intelligent scheduling strategy; meanwhile, hardware-level heartbeat detection and redundant links are deployed, and millisecond-level fault switching is guaranteed; and a dynamic threshold adjustment mechanism is introduced, the reliability and robustness of the system are adaptively optimized, and the high-real-time and high-reliability transmission requirements of rail transit are met.

The invention discloses a wide-narrow band fusion carrier communication processing circuit suitable for long-distance track communication. Comprising a power line interface connector ACIN, a wide-narrow band fusion carrier communication processing circuit, an analog front end H-AFE, an analog front end L-AFE, a digital baseband processor DBB, a FLASH memory, a gigabit Ethernet PHY, a gigabit Ethernet interface, an RS-485 transceiver, an RS-485 interface, an AC-DC power conversion and PMIC power management. The invention can effectively solve the problem of mutual interference between simultaneous transmission of wide and narrow bands and the problem of bandwidth reduction during communication of multiple groups of equipment in the same power supply line. The system can be widely applied to specific application scenes where network cables or optical fibers are inconvenient to lay in the field of rail robots, and transmission of broadband Ethernet data such as video monitoring and transmission of terminal equipment control signals are achieved through a power supply line. The overall design is simple, easy to use, safe and reliable.

The invention discloses an automatic test-oriented communication protocol and sequential logic cooperative control system, and relates to the technical field of nuclear field instrument and control system test, and the system comprises a 7-slot computer cage, a controller, a function card, a dual-path full duplex communication link, and a power supply monitoring module. The controller is fixed at the slot 0 of the 7-slot cage, and the function card is inserted in the slot 1 to the slot 6 in a mixed manner. And the controller is connected with each function card through a double-path full duplex communication link, is linked with the power supply monitoring module through a GPIO (General Purpose Input / Output) signal so as to monitor and control the power supply of the function card, and is also connected with the HMI through a gigabit Ethernet. The controller receives a test case of the HMI based on a first preset communication protocol, generates a test instruction, packages the test instruction into a control frame through a second preset communication protocol, issues the control frame according to three time sequence regulation and control modes, receives the state and test data returned by the function card, and intervenes the abnormal function card through the power supply monitoring module. And the function card analyzes the instruction, executes a test, collects and returns data, and reports the operation state at the same time.

The invention relates to the technical field of industrial control, and discloses a data analysis processing controller. The controller comprises a cabinet, an aviation plug front panel and a cabinet VPX backboard. External 24V direct current is connected with a cabinet VPX backboard through the power supply filtering module and is reduced to 12V direct current through the power supply module. A main control module, a digital quantity input / output module, an analog quantity input / output module and two reserved slot positions are integrated on a VPX backboard of the case, and all the modules are inserted into the standard slot positions through VPX connectors. The main control module is communicated with the function module through an RS232 bus and is integrated with a gigabit Ethernet, an RS485 interface and a CAN (Controller Area Network) interface; the digital quantity module adopts a dual-channel optical coupler isolation and self-checking technology, and the analog quantity module realizes dynamic fault switching through redundant output and controllable voltage superposition. Internal cable connection is eliminated through a VPX framework, the reliability, expansibility and real-time response capability of the system are remarkably improved by combining multi-stage power supply filtering and cold conduction and heat dissipation design, and the system is suitable for ship distance adjusting devices and other complex industrial environments.

The invention provides a one-way transmission mode switching method and system of gigabit Ethernet, a medium and equipment, and the method comprises the following steps: monitoring a signal-to-noise ratio of eye pattern quality of a transmission signal between master equipment and slave equipment, and triggering a one-way transmission mode based on the signal-to-noise ratio; controlling the master device to stop transmitting the training signal, and changing the setting of a preset register to enable the master device and the slave device to enter a one-way transmission mode establishment stage; when entering a one-way transmission mode establishment stage, controlling the master device to send a training signal of a preset duration, and completing establishment of a one-way transmission mode when the slave device successfully receives a modulation signal; and responding to a preset exit mechanism to exit the currently established one-way transmission mode, wherein the exit mechanism comprises a first mechanism, a second mechanism and a third mechanism. According to the one-way transmission mode switching method and system of the gigabit Ethernet, the medium and the equipment, the reliability of data transmission is remarkably improved, meanwhile, the network adaptability is enhanced, the maintenance cost is reduced, and the user experience is improved.

The invention relates to a 16-port CPEX gigabit Ethernet switching module, and belongs to the technical field of gigabit Ethernet switching modules. The module adopts a three-layer switching mode, a user can change the working mode of the switching module through a debugging interface, and the state of each network port can be monitored online or configuration parameters of the network port can be changed. Gigabit network signals are output to the CPEX connector after being isolated by the transformer, and a hardware interface is stable and reliable. The switching module is provided with a single-chip microcomputer management module, so that reliable management of power-on and reset of the switching module can be realized.

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 application provides a numerical control EtherCAT master station bandwidth adaptive scheduling and link fault bypass control system and method, belongs to the numerical control system industrial Ethernet bus control technical field, and the system comprises a heterogeneous multi-core processor, a field programmable gate array, a local bus, a gigabit Ethernet physical layer unit and a storage unit; the heterogeneous multi-core processor contains a high-performance computing core and a low-power control core, is interconnected with the field programmable gate array through the local bus, and executes physically isolated task scheduling; the field programmable gate array solidifies message preprocessing filtering, message hardware shunting, bandwidth clipping and a multi-channel hardware bypass switch array module, each module is cascaded in cooperation according to a data flow direction, message hardware unloading, bandwidth dynamic adjustment and fault bypass topology reconstruction are realized. The application reduces bus cycle jitter, improves bandwidth utilization efficiency and link fault tolerance capability, and is suitable for high-end numerical control machine tool multi-axis linkage control scenes.

The invention provides a cluster system comprising a computing unit and a switching unit and a task processing method and device, and relates to the technical field of computers. The cluster system comprises N computing platforms, and each computing platform comprises a switching unit, a computing unit, a power supply unit, a monitoring management unit and a controller. The computing unit comprises at least one of a PC, a CPU, a GPU and a neural network computing module; the switching unit comprises a first type switching module which is used for connecting a hardware or software interface of a network, is responsible for sending, receiving and processing data, and comprises but is not limited to a gigabit Ethernet interface; the second type of switching module provides support for high-speed serial data transmission, adopts high-speed data interfaces, and comprises but is not limited to a Serdes interface and an LVDS (Low Voltage Differential Signaling) interface; the third type of switching module is a high-bandwidth and low-delay data interface which comprises but is not limited to an MCIO interface and a PCIe interface; and the fourth type of switching module is a high-bandwidth and high-density data transmission interface which comprises but is not limited to a QSFP interface and an OSFP interface.

The invention relates to an intelligent table concentrator diversion ore-receiving sorting system, a sorting method and a software central platform, and the system comprises a high-performance server, a touch display screen, a data switch, a central control cabinet, a gigabit Ethernet line, a table concentrator group, a diversion ore-receiving sorting device, a table concentrator water supply control group and a table concentrator ore-feeding control group, the shaking table group comprises a shaking table group upstream, a shaking table group midstream and a shaking table group downstream, each shaking table is used for mineral separation and is provided with a diversion ore receiving separation device, the diversion ore receiving separation device is connected with the data switch through a first gigabit Ethernet line and transmits image data to the high-performance server, and the high-performance server is connected with the data switch through a second gigabit Ethernet line. And a control instruction is transmitted to the high-performance server through the second gigabit Ethernet line. Through the one-control-multiple intelligent control center, a plurality of shakers are controlled at the same time, and the functions of accurately identifying the demarcation point of the ore belt and dynamically adjusting the flow guide ore receiving plate are achieved, so that the labor intensity is reduced, and the separation precision and efficiency are improved.

The invention discloses a manufacturing process of a 10-gigabit Ethernet cable for a vehicle, and belongs to the technical field of cable manufacturing, and the manufacturing process comprises the following steps: 1, processing an oxygen-free copper wire by using a high-strength polycrystalline stranding wire-drawing die to realize surface treatment and outer diameter processing of the oxygen-free copper wire to obtain a conductive wire core; step 2, performing coating processing on the conductive wire core obtained in the step 1 by adopting a foaming PP formula and matching with a nitrogen injection mode, and uniformly forming an insulating protection layer on the surface of the conductive wire core to obtain a high-conductivity wire core; 3, pouring a high polymer material into an extruder, and carrying out coating processing of an insulating layer on the high-conductivity wire core obtained in the step 2 by using the extruder through a special mold to obtain a high-insulation wire; through the mutual cooperation of the twisted pair structure and the plurality of shielding layers, the electromagnetic compatibility of the cable is higher, and through the use of the oxygen-free copper wires, the internal resistance of the cable is reduced, and the twisted pair balance is improved.

The invention discloses a teenager education-oriented multi-mode interactive experience platform, and relates to the technical field of teenager education, interaction with a 5G intranet is carried out through a gigabit Ethernet, and user interaction comprises a 4KVR head display, a touch screen and a voiceprint recognition voice unit; the resource library is divided into four types of historical scenes and historical events and is updated quarterly; the generation module outputs multi-format content by using a GPT-4 lightweight model and verifies the multi-format content by an expert; intelligent adaptation is based on age, cognition and other portrait adaptation contents; a distributed architecture is adopted for storage, and a learning report is analyzed and output; safety comprises double content auditing and data desensitization; operation and maintenance are monitored for 7 * 24 hours, and remote operation and maintenance and automatic updating are supported; the problems that traditional education is single in form, poor in adaptation and insufficient in immersion are solved. Through multi-modal interaction, intelligent cognitive adaptation, safety control and closed-loop optimization, the interest and emotion resonance of teenagers are stimulated, and the attraction and effectiveness of cultural education are improved.

The application relates to a method for reducing the packet loss rate of a gigabit Ethernet network based on clock homologous design and belongs to the field of computer networks. The clock input sources of an E2000D chip, a KD5886 chip and other load devices are designed as homologous clocks, so that the network packet loss rate of an SGMII gigabit Ethernet interface between an E2000 series processor platform and other terminal processors is greatly reduced, the transmission rate of effective data is greatly improved, double-avoidance strategies are adopted at the firmware layer and the application layer, and the network communication packet loss rate of the SGMII interface between different processor platforms is reduced to 0%. The design adopted by the application can realize 100% localization, has self-controllability and referenceability, can be applied to all processor platforms of the E2000 series, and greatly improves the stability of network data communication between the SGMII interface and other loads.

The invention relates to the technical field of new energy battery production detection, in particular to a lithium battery pack polarity intelligent detection system and method based on deep learning, and the system comprises a hardware execution module which comprises an industrial personal computer, an adjustable illumination assembly, a sound-light alarm device, a high-precision industrial camera with a gigabit Ethernet interface, and an adjustable support; the software algorithm module comprises an upper computer interaction interface, a deep learning battery cell detection algorithm based on a YOLO model and a multi-target matching analysis algorithm; according to the lithium battery pack polarity intelligent detection system and method based on deep learning, the problems that traditional manual detection is low in efficiency and high in omission ratio, can only depend on a fixed template and cannot adapt to battery core model difference and battery pack difference are effectively solved.

The application relates to a ZYNQ-based fiber grating demodulation device and a gigabit Ethernet data transmission method thereof, and relates to the fields of optical fiber communication and sensing. The device takes a ZYNQ control module as a core, and is matched with a laser driver board, a laser, a beam splitter, an FBG sensor, a filter, a balanced photoelectric detector, a signal amplification module and an AD conversion module. The process is as follows: a terminal writes a filter characteristic curve into a PL end BRAM; the ZYNQ drives a laser, and the generated optical signal is reflected to the balanced photoelectric detector after passing through the beam splitter and the FBG sensor, is input into the PL end after photoelectric conversion, amplification and AD conversion; the PL end calculates and looks up a table to obtain a center wavelength; data is stored in a DDR3 through AXI and FIFO, and is uploaded to the terminal through a network port. Compared with a traditional MCU scheme, the application has the characteristics of fast operation speed, high integration degree and low transmission delay, and can be widely used in the fields of optical fiber communication and sensing measurement.

The invention discloses a baseband data transmission method, device and system based on a collaborative cache architecture, and the method comprises the steps: constructing an FIFO-RAM collaborative cache architecture, enabling FIFO to be used for matching a data generation rate, and enabling an RAM to persistently store a data copy as a data pool for sending and retransmission; sending data packets in batches through a gigabit Ethernet UDP protocol; a batch response and double trigger retransmission mechanism is established between an upper computer and a lower computer, the upper computer returns a batch response signal to indicate a lost packet, and the lower computer actively triggers retransmission based on the signal and an internal timeout timer and directly reads data from an RAM for retransmission. According to the invention, high-speed reliable transmission of gigabit UDP data is realized on a pure FPGA platform, and the method has the advantages of high bandwidth utilization rate, low retransmission delay and low system complexity, and is especially suitable for continuous high-speed data stream scenes such as ionosphere detection and the like.

The utility model relates to the technical field of integrated circuits, in particular to a multi-interface integrated circuit of a point sale mainboard, a device connector is electrically connected with a USB 2.0 joint and a USB PD quick charge connector, and the USB 2.0 joint is in communication connection with a port concentrator SL2.1 S chip; the port concentrator SL2.1 S chip is provided with a 100M network card chip and a USB two-port concentrator in parallel, and the 100M network card chip is electrically connected with an RJ45 100M network port. According to the utility model, the USB two-port concentrator and the RJ45 100M network port interface are used, so that better anti-interference and anti-aging performance is achieved, compatibility and connection of various peripheral equipment are supported, the USB PD fast charging connector supports PD protocol fast charging and can support more peripheral equipment needing electric power, and a plurality of safety protection mechanisms are adopted, so that the safety of the USB PD fast charging connector is greatly improved. And the phenomenon of overvoltage overload damage caused by incorrect use of the adapter and equipment of the traditional AC power supply is avoided.

The invention relates to a multi-channel time service TSN sending device, and belongs to the technical field of communication time service and TSN. According to the device, time service of three channels of B code, Beidou and system time is adopted, an upper computer can manage time information received by a central processing unit (CPU), a specific time optimization strategy is adopted for verification, and finally a TSN network message containing specific time information is sent out through a TSN GAMC. External interfaces of the device comprise a gigabit Ethernet electric port, a gigabit Ethernet optical port and a 10G Ethernet optical port, multi-channel time service, time verification, TSN protocol conversion and TSN sending are achieved, the reliability and the time certainty of a system are improved, and the time synchronization precision can reach the nanoscale to the maximum degree.

The present invention discloses a fingerprint classification method for Gigabit Ethernet devices based on generalized extreme value distribution compensation. The method includes: obtaining historical data base fingerprints of several Gigabit Ethernet devices from a historical database; collecting several current data of Gigabit Ethernet devices, processing the current data through the obtaining method of historical data base fingerprints to obtain current data base fingerprints; using the SMOTE algorithm (Synthetic Minority Over-sampling Technique) to perform data enhancement on the current data base fingerprints; after randomly sampling and under-sampling the historical data base fingerprints, adding the current data base fingerprints to obtain a new and old data mixed fingerprint library; based on the new and old data mixed fingerprint library after fitting with the generalized extreme value distribution, using the SVM (Support Vector Machine) method to train a fingerprint classifier to obtain a robust fingerprint classifier for subsequent fingerprint classification; the compensation method based on the generalized extreme value distribution of the present invention can resist the influence of environmental changes on fingerprints.

The utility model discloses high-speed signal synthesis processing module equipment, which comprises an outer shell, a shock-stopping ferrule, a heat dissipation fan module, an active knob, an indicator lamp, an adjusting knob, a control button, a wiring port, an alloy heat dissipation plate and a circuit board module, and is characterized in that the heat dissipation fan module is positioned and mounted at the top of the outer shell through the shock-stopping ferrule; a wiring port panel is fixedly provided with an alloy heat dissipation plate through screws, a wiring port is horizontally and transversely provided with a circuit board module, and the high-speed signal synthesis processing module equipment is more reliable by adopting a standard 6U VPX board card and a high-speed backboard framework; the transmission of data and instruction control interfaces is realized through a high-speed PCIE interface and a gigabit Ethernet port, and the whole system is provided with a Kylin operating system main control board file management interface and a complete machine self-checking function, so that the defects that the traditional signal synthesis is limited by data bandwidth performance and the data transmission rate is low are overcome; and high-speed, high-performance and high-expandability system application requirements are difficult to meet.

The utility model relates to communication technical field, concretely is a kind of gigabit ethernet port protection circuit.The protection circuit includes: difference signal positive electrode circuit and difference signal negative electrode circuit, for forming signal transmission path;Difference impedance matching circuit is used to suppress signal reflection;Power filter network circuit is used to filter high-frequency noise and suppress common-mode interference.The circuit architecture design of the utility model systematically solves the core technical problem in the high-speed transmission of gigabit ethernet port.In the signal transmission level, two-stage resistance-capacitance isolation and dynamic impedance matching mechanism construct the parameter self-adaptive signal transmission path, through the impedance buffer of series resistance, the direct current isolation of coupling capacitor and the dynamic adjustment of difference pair network, effectively suppress signal reflection and direct current bias interference, ensure the integrity of 10Gbps high-frequency signal in long-distance transmission.

The present invention discloses a control system and a communication board for a UHV flexible DC transmission converter valve. The communication board includes an ARM chip and an FPGA chip which are communicatively connected. The FPGA chip is connected to a backplane interface through an LVDS interface. A 100-Mbps Ethernet interface, a first Gigabit Ethernet interface, and a second Gigabit Ethernet interface are connected to the ARM chip. The 100-Mbps Ethernet interface communicates with a local monitoring system through the IEC104 communication protocol, and the first Gigabit Ethernet interface and the second Gigabit Ethernet interface are connected to a remote monitoring system by using the IEC61850 communication protocol. It can implement the IEC104 communication protocol and the IEC61850 communication protocol, and can not only communicate with the local monitoring system through IEC104 for local monitoring, but also communicate with the remote monitoring system through IEC61850.