低功耗智能传感器系统的设计

Design of a Low Power Intelligent Sensor System

设计了一个电池供电的智能传感器系统。该系统使用一个微控制器单元(MCU)来对整个系统进行控制,以及一个高分辨率的模数转换器(ADC)周期性地对实时传感器输出的模拟信号进行转换。文中首先给出了系统的硬件接口、MCU与ADC的串行口通信模式,然后对两种降低系统功耗的方法进行了详细地分析比较。结果表明,以突发方式工作能有效降低系统功耗。最后,提供了软件代码及代码流程分析,为类似系统的设计与实现提供了参考。

An intelligent sensor system was designed and implemented. A micro controller unit （MCU） was used to control the whole system, and a high resolution analog-to-digital converter （ADC） to convert the analog signal output from a real-time sensor. It described the hardware interfaces and the serial interface communication mode between MCU and ADC. Then it compared the two methods to reduce the system power consumption. The result indicates that the burst mode is efficient to reduce the system power consumption. Lastly the software flow and codes were also analyzed. This paper gives some reference to the design and implementation of the similar systems.