基于McWiLL的大范围多类型数据传输系统设计

为解决大面积范围内数量众多的灌溉机井水泵传感器网络中多种类型数据实时传输的难题，建立了基于McWiLL宽带无线接入技术的新型传感器网络。对该传感器网络各部分功能设计和网络规划进行了研究，并建立了小规模的实验网络；对该试验网络的覆盖范围、数据传输延时进行了测试，并与基于GPRS（Gerner-alPacketRadioService）的传感器网络进行了对比分析。结果表明，该传感器网络能采集并传输多种媒体数据、平均数据传输延时较GPRS网络缩短20％，最大数据传输延时缩短为GPRS网络的1／3，单基站网络覆盖范围约16km，很好地满足了设计需求。

Multi-Type Data Transmission System Design in Large Area Based on McWiLL

To solve multi-media data transition difficulty in large scale water pump sensor network, a new sensor network based on McWiLL broadband wireless access technology was designed. Components functions of sensor network were designed, network plan was studied, and small testing sensor network containing one base station was established. In the testing system, delay time in data transmission of the covered area were measured. Comparing the network based on McWiLL with network based on GPRS （ Gerneral Packet Radio Service） , testing results show that the sensor network based on McWiLL can sample and transmit multi-media data. Average delay time in McWiLL is decreased by 20%. Maximum data transmission delay is decreased to 1/3 of GPRS. Covering area radius of single base station is 16 kin. The designed data transmission system can satisfy the design requirement.