摘要
介绍了一种适合于交通部门间歇式观测站和连续式观测站进行抽样的 流量计数仪器,它以AT89C51为核心,具有低功耗、体积小、携带方便、 价格便宜等特点。文章还给出了该仪器的硬件电路原理图和程序流程图,以 及系统如何实现低功耗的方案。
It introduces a kind of the flow counting instrument for disconnection and succession sample, which is based on AT89C51 and has more characteristics such as low consumption, small volume, and low cost and so on. This paper also introduces the circuitry principle and its software, as well as the method of how to realize low consumption.
出处
《仪器仪表用户》
2004年第2期22-23,共2页
Instrumentation
关键词
单片机
交通流量
计数抽样仪
设计
microcontroller
sample
the traffic flow
low consumption
