自适应Tree-Mesh结构的大棚无线监测网络设计
针对大棚基地作物状态及环境信息的无线采集的需求,设计了改进的分簇Tree-Mesh混合拓扑结构无线传感器网络,并利用ZigBee实现了组网和多跳通信,以CC2530为核心设计了多传感器无线节点硬件系统,基于Z-Stack协议栈设计了有限状态机节点程序。同时,针对无线节点低功耗和网络信息低冗余的要求,设计了基于接收信号强度指示的最佳发射功率自适应机制,和基于感知数据差值的最小传输数据冗余自适应机制。试验结果表明,节点单跳和多跳通信速率典型值分别为20与0.3 kb/s,采用干电池供电和直流供电的节点通信距离分别可达30和90 m。仿真结果证明采用低功耗自适应机制的节点功耗降低了38.44%,可用...
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Published in | 农业工程学报 Vol. 29; no. 5; pp. 102 - 108 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
西南科技大学信息工程学院,绵阳 621010%西南科技大学国防科技学院,绵阳 621010
2013
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Subjects | |
Online Access | Get full text |
ISSN | 1002-6819 |
DOI | 10.3969/j.issn.1002-6819.2013.05.014 |
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Summary: | 针对大棚基地作物状态及环境信息的无线采集的需求,设计了改进的分簇Tree-Mesh混合拓扑结构无线传感器网络,并利用ZigBee实现了组网和多跳通信,以CC2530为核心设计了多传感器无线节点硬件系统,基于Z-Stack协议栈设计了有限状态机节点程序。同时,针对无线节点低功耗和网络信息低冗余的要求,设计了基于接收信号强度指示的最佳发射功率自适应机制,和基于感知数据差值的最小传输数据冗余自适应机制。试验结果表明,节点单跳和多跳通信速率典型值分别为20与0.3 kb/s,采用干电池供电和直流供电的节点通信距离分别可达30和90 m。仿真结果证明采用低功耗自适应机制的节点功耗降低了38.44%,可用作大棚基地的环境监测。 |
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Bibliography: | Shi Fanrong, Huang Yuqing, Ren Zhenwen, Wu Chun (1. School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China; 2. School of National Defence Science and Technology, Southwest University of Science and Technology, Mianyang 621010, China) 11-2047/S Wireless sensor networks have been widely utilized in agricultural production in such as crop information monitoring systems, agricultural facilities’ wireless control systems, etc. The wireless sensor networks could promote the development of agricultural information and intelligence, and more research has been focused on using ZigBee wireless technology to build the networks in recent years. To collect the base crop status and environmental information of greenhouses in a wireless way, a wireless sensor monitoring network system was designed. The basic work of this paper was the software and hardware system design; further work is projected to be low-power adaptive mechanism design. In analyzing the distribution charact |
ISSN: | 1002-6819 |
DOI: | 10.3969/j.issn.1002-6819.2013.05.014 |