电子水尺低功耗处理电路设计

A design of electronic water-level gauge low power processing circuit

首先介绍了低功耗的基本原理以及降低功耗的主要途径,围绕降低工作频率开展设计:增加一个遇水监测模块如监测有水则开启电源、微处理器等模块;如监测无水则关闭电源、微处理器等模块,不消耗电池电流,别是对一些长时间无水的应用场合其工作时间非常短,两者进行工作时间加权平均其运行频率在"0Hz"量级,从而降低工作频率获得低功耗。使用遇水监测模块获得很低的功耗,静态工作中功耗小于1m A,与传统电子水尺10m A的功耗相比,功耗降低1个数量级左右,具有低成本方案,具有很强的成本优势;相比传统电子水尺的定期上报,本设计对获得突发的警戒水位信息具有实时性。

A design of electronic water-level gauge low power processing circuit Abstract： First, this paper introduces the basic principle of low power and the main way to reduce the power consumption, focus on reducing working frequency to carry out the design： add a water monitoring module such as monitoring water power, micro controller modules and other modules; anhydrous then shut off the power, micro controller module, consumes no battery current, especially applications for some time the absolute long time is very short, the work time weighted average of the operation frequency of ＂0 Hz＂ in order to reduce the working frequency, low power dissipation. The use of water monitoring module for power consumption is very low, in the static power consumption less than 1 m A, compared with the traditional power electronic gauge 10 m A, power consumption is reduced by 1 orders of magnitude, with low cost, has a strong cost advantage; compared with the traditional electronic gauge of the periodic report, this design has to obtain real-time warning level emergency information.