Research on Video Remote Transmission Technology Based on FPGA

Abstract

In order to solve the problem of remote transmission technology of high speed digital video in the application process, this paper takes FPGA technology as the core, uses the optical fiber communication, Camera link interface technology, and high-speed serial parallel conversion and so on to provide a technical proposal of a high-speed digital video remote transmission. First of all, this paper overall designs the remote transmission technology of digital video, and then designs its hardware circuit and system control logic, focuses on the specific design of digital video acquisition, high-speed data caching and decoding, data sending and receiving and analog camera data. Finally, the debugging and testing of the experimental transmission technology of the remote digital video are carried out, mainly for the single board debugging, analog transmission experiment, and video transmission experiment, in which the debugging results show that the FPGA minimum system meets the requirements. Transmitting and receiving communication circuit and serial communication circuit of Camera link are correct; high-speed serial parallel conversion chip and SFP peripheral circuit are stable and reliable; simulation experiments show that in the process of image transmission, the pixel clock, line effective, field effective; and the sequence of image data is controlled reasonably, which can well achieve image transmission. The video transmission experiment results show that the transmission technology designed can achieve the remote transmission of digital video.