分析了我国铁路既有道口信号存在的若干问题， 探讨了解决途径。较详细地介绍了一种智能化道口信号及图像监录系统。
The article analyzed the problems in China railways' level crossing signal and explored their solutions. And a intelligent level crossing signal and video monitoring system were introduced in details.
介绍一种自行设计用微机对电力系统动态信号进行快速采集及事故录波的微机系统。
A microcomputer system which USES the microcomputer to conduct the quickly-collecting and recording wave in accident about dynamic signal in dynamic system is introduced in this paper.
本文提出了一种不用时基校正器的彩色电视同步信号再生电路，它能使电视特殊效果发生器或彩色摄象机被录象视频信号同步锁相，对其实际电路进行了详细的分析。
This paper describes a circuit that enables special effect generators or colour video cameras to be genlocked with VTR's without the need of time base correctors, and analyses the circuits in detail.
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