The acquisition system is composed of 8051 Single Chip which controls transmitting and accepting Ultrasound, and to use RS232 as a message channel to upper computer.

该采集系统采用8051单片机控制超声波的发射与接收，采用RS232与上位微机通讯。

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This system provides a novel way of developing 8051 series single-chip computer furthermore, the method also gives a rapid and convenient way for developing a new type of computer.

它为8051系列单片机的开发提供了一种新途径，同时也为新型计算机芯片的开发提供了一种快速方便的方法。

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Making use of rotary encoder attains the purpose of measuring rotative Angle of wiper through single chip computer 8051 to count the pulse of rotary encoder generating, which is drove by wipers axle.

主要介绍了旋转编码器的工作原理，通过8051单片机来累计旋转编码器被刮水器转轴带动所产生的脉冲数，将其换算转化为角度，从而达到测量刮水器转角的目的。

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