Design And Implementation Of Public Network Multi-channel Low-delay Adaptive Wireless Image Encryption Transmission Circuit

Wireless image transmission is widely used in live reports,rescue and disaster relief,and agricultural management due to its convenience and practicality.At present,the development trend of wireless image transmission industry is low latency,long distance and high resolution.The development of 4G / LTE technology enables market adaptability of wireless image transmission.Wireless image transmission uses 4G public mobile network as the transmission carrier,which has the characteristics of low networking cost,low transmission delay and wide coverage.The 4G public mobile network data upload bandwidth has dropped significantly in areas with low base station coverage or high user density.The transparency of network protocols has led to lower security of data transmission in public mobile networks.Therefore,the bandwidth stability and information security of images transmitted by public mobile networks have research and practical value.This paper designs and implements a public network multi-channel low-delay adaptive wireless image encryption transmission circuit.The design of public network multi-channel low-latency adaptive wireless image encryption transmission circuit realizes the expansion of the wireless transmission network bandwidth through the link aggregation mechanism,and adopts a data polling distribution method that adjusts the transmission order and transmission weight of the aggregation link to realize the multi-chain of the image coding stream Road transmission.The design of the circuit realizes the transmission link flow control through the load balancing mechanism,and balances the link data transmission performance and the transmission flow by obtaining the public mobile network parameters and evaluating the data transmission link performance.The design of the circuit improves the security performance of the link transmission data through a mixed encryption method.The RSA algorithm is used to encrypt the AES encryption / decryption key and the key-enabled dual RAM key storage method is used to achieve key synchronization.The image sending end circuit adopts the multi-channel public network adaptive way to realize the encrypted transmission of the image coding data stream,realizes the network parameter detection and link data distribution by controlling the link data construction method,and dynamically adjusts the aggregate transmission mode by obtaining the link transmission performance.The image receiving end circuit uses the wired network or the public network to realize the reception and decryption of the image coded data stream,and restores the image coded stream and constructs the feedback data by means of the network data packet attribute buffer transmission data.This paper formulates the simulation method and test plan for the designed circuit.The simulation method detects the correctness of the logic function of the designed circuit by generating simulation excitation through different working modes of the analog circuit.The simulation results show that the public network multi-channel low-latency adaptive wireless image encryption transmission circuit is consistent with the expected function.The test plan uses local area network and public network as the transmission environment to carry out controlled data transmission and UAV acquisition image transmission,respectively.The test results show that the public network multi-channel low-delay adaptive wireless image encryption transmission circuit meets the expected goal.