基于LZW算法的实时数据压缩无线传感器网络的设计

摘要：摘要： 针对利用ZigBee进行远距离无线通信时， 终端节点的数据量逐渐增大的特点， 系统设计了一种基于LZW算法的实时数据压缩无线传感器网络。 系统由终端节点、 路由器、 协调器和上位机构成。 终端节点负责将采集到的数据经过LZW压缩算法压缩后， 对数据进行存储并且发送； 路由器负责无线网络中数据的中继； 协调器负责将接收到的数据发送至上位机。 在网络功能实现方面， 利用Z-stack协议栈完成了终端节点、 路由器节点以及协调器节点上CC2530芯片的开发与配置， 并成功组网。 经过最终的仿真分析与测试验证， 系统实现了对远程数据的无线采集与存储， 并通过对数据的压缩降低了网络占用率， 具有一定的实用价值和应用前景。
Abstract： A real-time data compression wireless sensor network based on Lempel-Ziv-Welch encoding (LZW) algorithm is designed for the increasing data volume of terminal nodes when using ZigBee for long-distance wireless communication. The system consists of a terminal node, a router, a coordinator, and an upper computer. The terminal node is responsible for storing and sending the collected data after the LZW compression algorithm is compressed; The router is responsible for the relay of data in the wireless network; The coordinator is responsible for sending the received data to the upper computer. In terms of network function realization, the development and configuration of CC2530 chips on terminal nodes, router nodes, and coordinator nodes are completed using the Z-stack protocol stack, and the network is successfully organized. Through the final simulation analysis and test verification, the system realizes the wireless acquisition and storage of remote data, and reduces the network occupancy rate through the data compression, which has a certain practical value and application prospects.