嵌入式无线传感器网络网关节点的设计与实现

Design and Implementation Gateway Based on GPRS Model in Wireless Sensor Networks

无线传感器网络是新一代的传感器网络,具有非常广泛的应用前景。本文在对无线传感器网络体系结构、网关(Sink)节点的特点、功能分析的基础上,给出了无线传感器网络Sink节点的软硬件设计与实现方案。Sink节点以低功耗嵌入式处理器AR91R40008为核心,uC/os-II为嵌入式实时操作系统,配以内置TCP/IP协议的GPRS模块作为网络数据出口以及TR3000无线收发模块,可以实现高速的数据采集和可靠的数据传送,能够较好地达到低功耗和实时性的要求,最后给出实测结果。

Wireless sensor network is the new generation sensor network, which has an extensive application and bright foreground. Design and realization scheme of sink node in wireless sensor networks are proposed based on the introduction of its system structure, characteristics and function. The low-consumption embedded CPU-AR91R4008 is the core of sink node, which has the uC/os-Ⅱembedded operation system.the interface of GPRS model with TCP/IP and wireless transfer TR3000. It can collect and transmit data reliably at high speed. The system meets the needs of low-power and real-time. At last, we put forward the result of the test.