无线传感网节点群的远程控制研究

Research of Remote Control of Node Cluster in Wireless Sensor Network

摘要:

随着通信技术、嵌入式技术和传感器技术的飞速发展,传感器网络由于具备自组织性、协作性和动态组网变化等特点,在经济生活各方面应用广泛;但目前商用传感网络多为有线的局域网连接,对一些离散型的节点适用性不强,特别是在一些需要远程接入的控制场合就很难实现;针对上述不足,提出了一种基于无线网络与GPRS网络相结合的无线传感网络节点群远程控制方式;离散型终端节点通过433 MHz频点组成无线传感网络,经过本地嵌入式中心节点实现与GPRS网络的异网连接,进而通过手持式终端实现远程监控;实验系统比较了节点群在不同气候条件下数据传输的距离与可靠性,结果表明系统能实现上述两种无线网络的异网数据交换,有效地解决了传感网节点群的远程控制等问题。

Abstract:

With the rapid development of communication technology, embedded technology and sensor technology, the sensor network is widely used in many aspects of economic life due to its self-organization, collaboration and dynamic network changes characteristics. But most commercial sensor networks are wired LAN connection, so for some discrete nodes the applicability is not strong, especially in some remote access control required situations, it is difficult to achieve. In response to these deficiencies, a remote control mode of wireless network nodes cluster, based on the combination of GPRS network is proposed. Discrete terminal nodes in 433 MHz compose wireless sensor network and implement different network connections with GPRS network through a embedded local central node, and then get remote monitoring via the handheld terminal. System experiments compare the data transmission distance and reliability of nodes in different climate conditions, and the results show that the system can achieve different network data exchange in these kinds of wireless network, and solve the problems of remote control in sensor network nodes cluster effectively.