摘要
针对无线传感器网络(W SNs)的功能需求,给出了基于高性能先进精简指令集机器(ARM)微处理器AT91SAM7S64、射频芯片CC2420、温度传感器MAX6666和加速度传感器ADXL202的W SNs节点的设计方案;分析了系统组成和原理;重点阐述了节点的硬件设计,基于SPI总线的CC2420驱动程序设计和温度传感器信号采集驱动程序的设计;最后,对传感器网络和节点上温度传感器的准确度进行了实验测试和分析。实验中,无线温度传感器网络的精度最高可达0.25℃。
A novel solution of wireless sensor networks （WSNs） node is describe1 based on advanced RISC machines（ARM） core processor AT91 SAM7S64, RF chip C C2420,temperature sensor MAX6666 and acceleration sensor ADXL202. After the analysis of system operation principle, the hardware design of WSNs node and the driver of on-board peripherals such as CC2420, MAX6666 and ADXL202 are expounded in detail. Finally, the performance of WSNs node especially temperature sensor is assessed by experiment. The wireless temperature sensor networks＇ accuracy is up to 0.25 ℃.
出处
《传感器与微系统》
CSCD
北大核心
2006年第12期48-50,56,共4页
Transducer and Microsystem Technologies
