基于双绞线的工业现场视频信号的传输  

Long Distance Transmission of Video Signal in Industrial Fields

作　　者：张红兵[1] 黄石生[1] 

机构地区：[1]华南理工大学机械工程学院,广东广州510640

出　　处：《低压电器》2005年第5期29-31,35,共4页Low Voltage Apparatus

基　　金：国家自然科学基金资助项目(50375054)

摘　　要：在工业测控系统中使用双绞线传输视频信号,抗干扰能力强、传输距离远。其基本原理为在发送端将单端的视频信号转换成差分信号并通过双绞线传输,在接收端则将差分信号转换成单端视频信号。介绍了平衡发送驱动器和差分信号接收器的设计技术。对高频信号在发送端要预提升,在接收端要进行补偿。Video signal in industrial measuring and controlling system can be transmitted to a long distance over twisted-pair. Single ended video signal is transformed into differential signal in driver and is transmitted over twisted-pair. It is transformed back into single ended video signal in receiver. The design of balance transmission driver and differential receiver were introduced. High frequency signals must be boosted in driver and compensated in receiver.

关 键 词：双绞线 视频信号 传输 工业现场 

分 类 号：TN915.61[电子电信—通信与信息系统]