出租车计价器黑匣子功能的实现

Implementation of Black Box Function of Taxi Price Counter

分析了现有出租车计价器的功能 ,提出了在出租车计价器上增加黑匣子功能的方法 ,利用很少的 I/O口线 ,构成具有 1M字节的大容量快闪存储器 ,通过对行车记录的压缩处理 ,可保存一个星期左右的行车记录 ,最后给出了实现黑匣子功能的程序流程图。

This paper analyzes the functions of current taxi price counter,and provides the method of adding the black box function into the taxi price counter.In the proposed method,only a few I/O ports are needed to obtain a 1M bytes capacity flash memory,which can save the driving record of one week with the way of data compression processing.The flow chart of implementing black box function is given in the end of paper.