The Design Of A Micro System For Non-Contact Near-Field High-Speed Data Transmission

The development of data transmission technology has accelerated the frequency of information exchange and increased the magnitude of data.In today’s society with highly developed electronic informatization,it promotes and adapts to the development of social productivity and the needs of human production and life.The traditional wired transmission technology requires frequent plug-in and plug-out operations,which is inconvenient to operate in harsh environments and has a short service life.Wireless transmission technology improves the flexibility and convenience of use by means of non-contact data transmission.However,the current wireless transmission technology generally has a low transmission rate and cannot meet the needs of high-speed transmission and has low security because the signal is easily hijacked,cracked.With regard to the above problems,this paper proposes a new near-field non-contact high-speed data transmission technology.To make it more widespread and practical,a microsystem based on the technology is designed.This paper first analyzes the structure and working principle of the existing short-distance non-contact data transmission micro-system,and completes the overall architecture design of the near-field non-contact high-speed data transmission micro-system on the basis of which,the micro-system is divided into wireless transceiver modules.Group and interface data processing unit in two parts.The whole micro system adopts Ser Des I/O technology.By breaking through key technologies such as high-speed I/O interconnection between the two modules,under the premise of ensuring transmission accuracy,high-speed interconnection and data transmission between wired transmission and wireless transceiver are realized.The transmission achieves the effect that the micro system takes into account the high speed of the wired transmission mode and the flexibility and convenience of the wireless transmission mode.After the architectural design work is completed,the corresponding selection and circuit design are completed for the two parts of the wireless transceiver module and the interface data processing unit in the system.Among them,the wireless transceiver module adopts 60 GHz millimeter wave technology,and adopts inductive field coupling instead of radiation field,which solves the security problem during high-speed wireless transmission of data.Depending on the extent of application scenarios,the Ethernet interface is selected on the interface data processing unit for design,and the specific division of each module and the detailed circuit design are completed.In the design of the interface data processing unit circuit,the SGMII interface technology is used in a breakthrough.Using the existing protocol,the processing and conversion of parallel data into high-speed serial data is carried out.Preparation for wireless transmission and reception to the wireless data transmission module.Following the selection of the corresponding chip,sample fabrication and circuit design for the two parts of the microsystem,the functional simulation analysis of the entire microsystem is completed.The working clock frequency of the data processing unit of the Ethernet interface is 125 MHz,and the data will perform 8b/10 b encoding and decoding on the two channels of receiving and sending,and then wirelessly send and receive through the wireless transceiver module.Simulation analysis follows the sequence from the module to the whole.Once the module circuit simulation analysis is completed,the function simulation and FPGA function verification of the interface data processing unit are carried out.Finally,the hardware verification of the entire micro-system is completed with the wireless transceiver module.The results show that the average data rate of the sender and receiver is940 Mbps,the functional performance of the Ethernet interface data processing unit has reached the design index,and the wireless transceiver module with a maximum rate of 6Gpbs can fully meet the rate requirements of high-speed data transmission,which illustrates the correctness and effectiveness of the microsystem design method in this paper.