基于ZigBee无线传感器网络的田间数据采集拥塞缓解方法研究-计算机科学与技术专业论文.docx

基于ZigBee无线传感器网络的田间数据采集拥塞缓解方法研究Congestion 基于ZigBee无线传感器网络的田间数据采集拥塞缓解方法研究 Congestion Relief Method Research Based--ZigBee Wireless Sensor Network within Field Data Collection ABSTRACT In the paper,Test-bed is based on TI CC2530 chip and a monitoring software for crop environment parameters is designed and achieved．In order to reduce network traffic that brought by data redundancy，weighted data fusion algorithm is achieved on terminal node and provided rigorous derivation in the paper． Congestion avoidance and congestion control are fulfilled based on rate adjustment and traffic control strategy．In the paper,works are presented as follows within ZigBee protocol：a)Congestion relief method with intelligent based on rate adjustment is designed and fulfilled，called as CR mechanism；b)Designing and achieving random data transmission method(RTM)；c)CR+is a hybrid method which is combined CR with RTM；d)designing and achieving time—sharing data transmission method(TSTM)．The paper uses Environment information parameters monitoring software for crop to monitor uninterruptedly beans and strawberry in experiment greenhouse for testing the robustness of the software．The performance of CR，CR+，RTM and TSTM method are verified by plentiful experiments in the paper． Ⅱ 万方数据 内蒙古大学硕士学位论文These 内蒙古大学硕士学位论文 These experiment results show that these proposed methods is embedded in ZigBee protocol respectively which are superior to raw ZigBee protocol to same degree． Further we compare the performance of ZigBee protocol embedded CR and CR+． The experiment result shows that the ZigBee protocol embedded CR+is better candidate。 KE硼ORI)S：ZigBee；congestion reliefj CR，CR+；RTM；TSTM III 万方数据 基于Zig,Bee无线传感器网络的田间数据采集拥塞缓解方法研究目录 基于Zig,Bee无线传感器网络的田间数据采集拥塞缓解方法研究 目录 摘要 ．．I ABSTRACT II 第一章绪论 ．1 1．1研究背景 l 1．2相关研究工作 ．．2 1．3 ZigBee拥塞概述 ．4 1．4课题来源及本文主要的研究工作 ．．4 1．5论文的组织结构 ．．5 1．6本章小结 6 第二章无线传感器网络及ZigBee技术 。7 2．1无线传感器网络 ．．7 2．1．1无线传感器的发展及应用 ．．7 2．1．2无线传感器网络的特点 ．．8 2．1．3无线传感器节点结构 ．．8 2．1．4无线传感器的通信协议架构 一9 2．2