中文摘要：

分析了低功耗数据采样系统的需求，确认了系统的优化方向。针对系统无线网络簇头节点的硬件电路进行优化设计，将传感器节点进行轮询和数据传输处理完全分离，在保证系统无线数据传输稳定可靠的前提下，缩短数据通信的时间，从而进一步降低系统非簇头节点的功耗。

英文摘要：

The paper analyzes the demand of low-power data sampling system and describes the direction of system optimization. The optimization of hardware circuit design of cluster-head nodes in a wireless network separates polling and data transmission. It shorts the time of data communications and further reduces the power consumption of non-cluster-head node in system under the premise of ensuring reliable wireless data transmission.