摘要
电缆长距离视频传输系统，采用７５Ω通用高频电缆长距离传输视频信号及控制信号，并利用视频信号去自动控制电子切换装置，利用控制信号自动控制终端电源的开启，采用先进的时分准脉宽数字编码、译码方式，是当前较为先进和实用的混合式监控系统．
The view-frequence signal and the controlling-signal propagate a long-distance in the commen high - frequence cable of 75Ω which is used in the system. The electric swicthing equipment and the openning of of the teminal power are controlled automatically by the view-frequence signal and the controlling signal respectively. The advanced time-eivided qusi-pulse-wisth coding and decoding form are used in the system which is a advanced and practical mixed-monitoring equipment up to date.
出处
《聊城大学学报（自然科学版）》
1995年第1期40-44,共5页
Journal of Liaocheng University:Natural Science Edition
关键词
时分准脉宽数字编码
译码控制
视频传输
自动切换
Time - divided qusi-pulse-wisth coding
Decode controlling
View - frequence signal propagating
Swicthing automatically
