检索式数字水位数据采集系统的低功耗途径探讨

Low-power Consumption Means of Digital Retrieval Water-level Sensor

低功耗的水位数据采集系统是独立水文测站能否实际应用的关键。笔者从检索式数字水位数据采集系统节能降耗出发,分析了影响系统功耗的各种因素,提出了将电源管理、低工作电压、芯片和器件的选择、电路板紧凑布线、微处理器时钟及工作方式的管理等措施应用于检索式数字水位数据采集系统物理层、软件层的低功耗设计中。测试表明,设计后的系统工作稳定,功耗更低,更适用于电池供电,长时间无人看守的场合。

Low-power digital retrieval water-level data acquisition system is the key to independent hydrological measurement station. Starting from data acquisition system based on digital retrieval water-level sensor saving energy, this paper analyses the impact of various factors to the system power consumption, puts forward a power management, low-voltage operation, the choice of chips and devices, compact circuit board layout, microprocessor clock and the way of management used in the digital retrieval water-level data acquisition system physical layer, the software layer of low power consumption design. Tests show that the system is stable, lower power consumption, and more suitable for battery-powered, long unguarded occasions.