In the implementation process of precision agriculture, wireless sensor networks are essential technical means for information transmission and control. Against to energy issues of wireless sensor networks in precision agriculture applications, proposed wake-up and data collection strategies, completed PD-MAC layer and the network layer design, set up a multi-stage power transmission mode and multi-mode receiver sensitivity and communication load balancing techniques to achieve the purpose of reducing energy consumption. Combines features of applications and needs,and consider a cross-layer design strategy. Finally, on the platform of TOSSIM completed simulation, the results show that the proposed strategy has good energy-saving effect.%在精准农业的实施过程中,无线传感器网络是必不可少的信息传输和控制的技术手段. 针对无线传感器网络在精准农业应用中的节能问题,提出了唤醒和数据收集策略,设计了PD-MAC层和网络层,采用多级功率发送模式和多灵敏度接收模式及通信负载均衡技术以达到减少能量消耗目的. 结合了需求和应用的特征,并考虑了跨层设计策略. 最后在TOSSIM平台进行了仿真验证,结果表明所提出的节能策略具有较好的节能效果.
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