摘要
针对空间科学实验设备在系统体积、功耗、可靠性、环境适应性等方面的特殊要求,本文探讨将JPEG图像信息插入视频码流中共用同一信道进行传输的方法,设计了基于PC/104工业总线标准的数据接收系统完成SPI接口串行数据至ISA接口8位并行数据的传输,在进机处理过程中实现图像数据抽取和恢复,并对视频编解码芯片相关的"起始码竞争"问题进行了修正。
According to the special demand in system size,power consumption,reliability,environmental adaptation of the Space Scientific Experiments devices,this article discuss the method that insert the JPEG image data into video bit stream,and transport them by one transmission channel.We design a Data Receiving System based on the PC104 Industry Standard Architecture in order to convert the Serial Data from SPI interface to 8-bit Parallel Data and transport it by ISA interface,realize the abstraction and recovery of the image data,and amend the ＂Starting-code Competition＂ problem of the Video Code/Decode Chip.
出处
《微计算机信息》
2010年第10期115-116,共2页
Control & Automation
