Design And Implementation Of Video Signal Conversion And Wireless Transmission For Video Glass

With the rapid development of wearable computing, needs of wearable terminalwith small size, portable and low power consumption are becoming more and moreurgent. As a form of wearable terminal system, video glasses have been paid a lot ofattention in recent years, and have a huge market prospect. However, due to thefunctional singleness and complex connection cables, the products already existing havepoor user experience. Therefore, enabling the video glasses to support a variety of inputvideo signal and wireless video transmission has become a hot issue in the industry.Against the issue of functional singleness and complex connection cables, thispaper designs and accomplishes a video signal conversion and wireless videotransmission subsystem of video glasses. In the meanwhile, it studies technology ofvideo signal conversion and wireless video transmission in the special applicationbackground of video glasses. This article covers the following aspects:1) Demand analysis of video glass’ video signal conversion and wireless videotransmission subsystem, drawing the design of indicators respectively both functionallyand non-functionally. On the basis of demand analysis, this article carries out thecomparative analysis and model selection in the proposed technologies, thus designs theoverall system.2) Three kinds of video signals, CVBS, VGA and HDMI, are focused, as well asvideo signal conversion technology. Thus accomplishing the design of video signalconversion, based on which this article elaborates video signal conversion design andimplementation in aspects of schematic circuit design, PCB design and configurationprogram design respectively.3) Research and analysis of technology in relation to wireless video transmission,proposal the wireless video transmission design of video glasses, combined with thepractical application background. Then elaborate specific schematic circuit design, PCBdesign and configuration program design of wireless transmission.4) Carrying out the research and analysis in relation to wireless video transmission,combined with demand analysis, mainly including key signal test, function test and performance index test, which shows this design has achieved the anticipated result.