摘要： 针对无线传感器网络时间同步算法的同步精度性能难以测量的问题，利用处理器的“自中断”功能，提出一种高精度、低成本的无线传感器网络时间同步误差测量方法，并在GAINS测试床上进行实现。实验结果表明，与使用高精度逻辑分析仪的测量方法相比，该方法的测量准确性较高，且成本更低。

关键词: 传感器网络, 时间同步, 测量, 中断

Abstract: Considering the difficulty in precise measurement of time synchronization algorithm of wireless sensor networks, this paper proposes a measurement method with high precision and low cost by utilizing the capability of the “self interrupt”, which is realized in many microcontrollers. The measurement method is realized on GAINS testbed. To verify its validity, the synchronization error of TPSN is measured on the testbed. Compared with the measurement method with logic analyzer, better precision and lower price are simultaneously gotten.

Key words: sensor networks, time synchronization, measurement, interruption

中图分类号: 

• TP393