消化道无线内窥镜便携式图像接收装置的硬件设计  

The Hardware Design of a Portable Gastrointestinal Wireless Endoscope Image Receiver

作　　者：张思杰[1] 曾孝平[1] 郑小林[2] 谢礼莹[1] 彭承琳[2] 

机构地区：[1]重庆大学通信工程学院电子系,重庆400044 [2]重庆大学生物力学及组织工程教育部重点实验室,重庆400044

出　　处：《中国医疗器械杂志》2006年第3期184-187,223,共5页Chinese Journal of Medical Instrumentation

基　　金：本课题受"863"计划项目(2002AA404190);重庆科科技攻关项目(7793);重庆大学博士后基金的资助

摘　　要：消化道无线内窥镜便携式图像接收装置是在TMS320C6211 DSP的基础上进行开发的。先对摄像胶囊发出的调制信号进行接收和解调,然后利用视频解码芯片SAA7114H的同步信号,经过时序逻辑变换,控制对断续视频信号的采集,并将其存储到CF卡中。此外,还利用高速DSP对图像信号进行预处理和压缩,可大大节约数据的存储空间和处理时间。The portable gastrointestinal wireless endoscope image receiver is developed and based on TMS320C6211 DSP. It can receive and demodulate the modulated signal which is transmitted from the camera-capsule, and then output the video signal. The synchronizing signals offered by SAA7114H are made best of and are used to design the time logic circuit. The fitful video signal can be collected under the control of the time logic circuit. The circuit can automatically get rid of useless blank data and only collect effective and good-quality video signals, and storage them in CF card. In addition, the image signal can be processed and compressed by DSP, and thus the data storage space and the data- analyzing time can be saved.

关 键 词：消化道无线内窥镜 TMS320C6211 DSP SAA7114H CF卡 

分 类 号：R318.6[医药卫生—生物医学工程]