【摘要】 无线传感器网络综合了传感器技术、嵌入式技术、分布式信息处理技术和网络通信技术,能够协作地实施监测、感知和采集各种环境对象的信息,并将信息传递给系统用户主机进行分析、处理。其巨大应用前景引起了军事、工业、商业和学术界专家的广泛关注。无线网络中的节点,具有感知和路由的功能,在实际的应用中功耗是影响节点工作寿命的关键因素,为此,使用了nRF903和微控制器MSP430F149设计并实现了一种超低功耗的无线传感器网络节点机,提出了一种物理层通信的超低功耗能量控制的方法,并进行了测试。结果证明该模块比较适合传感器网络层的节点机的应用,具有集成度高、微型化、体积小、功耗低等特点。更多还原

【Abstract】 Sensor networks are integration of sensor techniques, nested computation techniques, distributed computation techniques and wireless communication techniques. They can be used for information testing, sensing, collecting and processing of monitored objects and transferring the processed information to user’s host to analyze and manage. Because its massive using field, the experts in military, academia, commerce and industries are very interested in it. An Ultra-Low power Wireless Sensor Network (WSN )node’s controller is designed and implemented by using the nRF903 and MSP430F149 MCU in this paper. A method that controls the power energy wasting in the WSN physic layer is put forward. By testing, it is proved that the module is adapted to Ad-hoc Sensor Network node controller. The module is higher integrated, subminiature and lower power wasting.更多还原