The entire system is composed of computer, PC bus interface card, decode instrument, video switches matrix, audio switches matrix, pan, lens andalarm control etc.
整个系统由微机、PC总线适配卡、解码器、视频切换矩阵、音频切换矩阵、云台镜头和报警控制等部分组成。
2
Responsible for the maintenance of the ELV, telephone systems, fire alarm, monitoring system. To assist the operation and maintenance work of the audio and video installation.
The research in this paper is based on the projects which are "A Low Bit Rate Multimedia Remote Instruction System" and "A Video-Audio Monitoring-Control andAlarm System".