在传感器领域(Sensor Field)内,传感器节点(Sensor Node)两两相互联系,通过无线传感器网互相传递信息。汇聚节点(Sink Node)是连接传感器网络与互联网等外部网络的节点,在物联网的运作当中起到重要作用。
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关键词:传感器网络;sink节点;M/M/1 /n;过载;自适应包丢弃 [gap=1129]Key words: sensor network; sink nodes; M/M/1/n;overload; adaptive packet discarding
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The results show that its’ effective to eliminate outlier and make up impact of data loss. The accuracy of data sent to sink node are accordingly improved and energy is saved.
采用第三方实测数据验证结果表明,该算法能有效地剔除感知数据集中的野值,弥补感知数据丢失带来的影响和提高传回汇聚节点数据的准确度。
参考来源 - 带野值处理的轻量级数据融合算法仿真研究The sensor nodes can monitor and collect the environment information. By composing the multihop and self-organization routing,the nodes can send the sample data in monitor area back to the sink node.
在无线传感器网络中,传感器节点能够实时监测、感知和采集覆盖区域内监测对象的信息,并通过多跳自组织的方式将数据传送回汇聚节点。
参考来源 - 无线传感器网络路由协议研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Practice application proves that the sink node with multi-communication methods has better practicability.
实际应用证明,多通信方式的汇聚节点具有较高的实用性。
However, the cluster heads close to the sink node lead to energy failure for transmit large amount of data, resulting in "energy hole" phenomenon.
但是,由于靠近汇聚节点的簇头需要转发大量数据,容易导致能量快速衰竭而失效,造成“能量空洞”现象。
In addition, the succeeded masquerader detection algorithm is proposed in this scheme. In this algorithm, the sink node monitors and examines the malicious region.
该方案也提出了成功假冒攻击源测定算法,其中采用了汇聚节点监控排查恶意区域、普通节点认证转发报警消息机制。
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