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本文介绍了一种内燃机发电机组运行状态信号采集电路,包括冷却水温,机油温度、机油压力、油门位置上下限以及转速(频率)信号的采集。文中给出了较详细的硬件电路,并进行了简要分析说明,该电路可用于微机自动控制系统,且除转速外,其它信号均采用开关量形式,采集简单,便于软件编程。该电路也可用于其它需开关量控制的场合,具有一定的通用性。
This paper introduces a signal acquisition circuit of operating status of internal combustion engine generator set, including the collection of cooling water temperature, oil temperature, oil pressure, upper and lower throttle position and speed (frequency) signal acquisition. The paper gives a more detailed hardware circuit, and a brief analysis shows that the circuit can be used for microcomputer automatic control system, and in addition to speed, the other signals are used switch form, acquisition is simple, easy software programming. The circuit can also be used for other occasions need to switch control, has a certain versatility.