微小型无线光电传感网络的实验系统设计

基于nRF905低功耗、高灵敏度无线收发的一体芯片实现了一种微小型无线光电传感网络实验系统。讨论了实验系统的硬件节点、网络通信协议及软件的设计。实验结果表明,在19.2kbit/s速率下,系统中任意两节点可实现30m(室内)至150m(室外空旷地带)范围内的无线通信。该系统具有硬件设计简单、软件及其协议编程方便等优点,可微型化、低成本的应用于无线光电传感器网络系统。

Design of laboratorial mini-system of wireless sensor network with photoelectric sensor

A wireless sensor network laboratorial system is designed based on the nRF905 transceiver chip. A design solution is provided. How to design the laboratorial system is described, including hardware, protocol, and software. When the speed of RF communication is 19.2kbit/s, the data are transmitted reliably between any both nodes in laboratory within 30 meters. And in open place, the distance can reach 150 meters. This scheme has many advantages, such as simple hardware design, compact software design and convenient network communication protocol design, and so on. It can be used in the field of wireless photoelectric sensor network which requires mini and low cost.