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OALib Journal期刊
ISSN: 2333-9721
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节能型无线传感器网络在森林环境监测中的应用
DOI: 10.3969/j.issn.1000-2006.2014.04.003, PP. 14-18
Keywords: 无线传感器网络,森林环境监测,自适应采样,系统休眠,自适应路由
Abstract:
根据森林环境监测数据变化率相对较慢、数据冗余度较高,监测期间突发事件(如降雨、火灾)又有快速突变等特点,结合无线传感器网络在森林环境监测中的试验,从系统架设、传感器采样周期、基于系统休眠的自适应网络路由算法等方面分析了长期有效采集环境数据的系统结构,实时捕捉环境因子变化的方法;研究了网络节能、延长系统生命周期的方法;提出了采用变周期自适应采样法解决长期休眠丢失有效信息的方法,设计出一种结合系统休眠和分簇算法的自适应动态路由(sdrp)。系统实测结果表明,与常规森林资源与环境监测技术相比,节能型无线传感器网络不仅在时间和空间上提高了环境数据采集深度,同时提升了系统对环境因子变化的响应速度。此外,采用结合系统休眠的变周期采样技术以及针对系统节能的自适应动态路由都可有效降低系统能耗,维持系统工作的稳定性与数据的可靠性,适合森林环境监测。
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