无线网络化微传感器及其嵌入式系统

摘要

首先对无线传感网络作了分类,描述了无线网络化微传感器的体系结构,提出了两种蓝牙无线网络化传感器的体系结构,其主要特征是蓝牙、RF-MEMS天线及嵌入式系统.然后,讨论了无线网络化微传感器的技术要求与关键技术,包括自适应跳频与自配置蓝牙组网等新思想;研究重点在于无线通信的稳定性与可靠性、无线组网方案及实时互联网连接.为实现环境监测并通过无线网络通信传递测量值,可设计无线网络化微传感器嵌入式系统;选用了适当型号的嵌入式处理器和uClinux操作系统,设计了系统软件、低层驱动程序、调度程序及蓝牙高层协议程序.最后,以无线远程图像监视系统作为实例加以说明.%The classification and architectures of wireless networked microsensors, and the architec-tures of two wireless microsensors with Bluetooth, RF-MEMS antenna and embedding system in par-tucular, are discussed in detail. The technical requirements for wireless networked microsensors andassociated key techniques, including adaptive brequency-hopped spread spectrum and self-configura-tion Bluetooth networking, are discussed with emphasis on stability and reliability of wireless commu-nication and wireless networking schemes including real-time connectivity to internet. A wireless net-worked microsensor can be designed with an embedding system to achieve environmental monitoringand transfer of measurements through wireless network communication. Low-level drivers, schedulersand Bluetooth high-level protocols can be designed by selecting appropriate 32 bits embedded processorand clinus operating system. The whole design and operating process of a wireless netwokred mi-crosensor and its embedding system are illustrated with a wireless remote image surveillance systemused as typical example.