摘要
本文介绍了在PIC18F4520单片机控制下以μPD6453字符叠加芯片为核心的字符叠加方案,实现了将点钞机的数据信息叠加到监控视频信号中。该电路已成功应用到银行和超市柜台中。
This paper introduces a character superimposition system using the character superimposition chipμPD6453 as a core,which is under the control of PIC18F4520.It implements to make the messages from the currency counter adding to the surveillance video signals.This circuit has been applied into banks and supermarket counters.
