车载光学测量系统可视对讲的设计与实现

Design and Realization of Visual-talk for Vehicle Optical Measuring System

针对多载车光学测量系统实现交互测量的特点,研究开发了一套可视对讲系统。本系统采用高性能视频分割芯片TW2824将多路视频信号进行合成与实时显示,以实现主车中心站方舱对其它各方舱的实时图像监控,通过音频交叉开关选择与任意控制方舱进行语音通话,以实现各方舱间的协同工作。该可视对讲系统可通过主控计算机进行视频切换及语音通道选择,具有性能可靠、操作简单等特点,提高了系统的自动化程度。

Aooording to file oharaoteristios of interaotive measurement using multiple-vehicle optical measuring system.avisual-speaking systom has been dev,lop,d. The system uses a high-performance chip TW2824 to synthesize and display multiple video signals, so the main central station can monitor the subsystems inreal time Meanwhile,the main ccntral station can choose any one or all the subsystems＇ master cabin to talk by the audio crosspoint swith in order to achieve interoperability between all cabins. The visual-speaking system is controlled by main control computer to switch the channcl of video and audio. The visual-speaking system has the characteristics of reliable perfomace and simple operation,so it improves the automation of the system.