应用于高速公路收费站的多路字符叠加系统的研究
应用于高速公路收费站的多路字符叠加系统的研究
摘要:论文提出了一种基于分时复用原理的多路字符叠加系统。该系统通过stc89c52控制字符叠加芯片mb90092进行多路视频的字符叠加,同时可以通过rs232与上位机进行通信。该系统成本较低,性能稳定,可广泛应用于高速公路收费站的视频监控系统中。关键词:多路;分时复用原理;字符叠加
the research of multi-channel osd system used in highway toll station
jiang hui, li lan-jun
(school of electric engineering, university of south china, hengyang, 421001, hunan ,china)
abstract: this paper provides a multi-channel osd
(on-screen display ) system based on time division multiplex access. in this system, mb90092 osd chip is controlled by stc89c52. and this system can communicate with the host computer via rs232. it’s a system of lower-cost,stable performance, can be widely applied to the highway toll video surveillance system.
key words: multi-channel; time division multiplex access;osd
0.引言