基于无线传感器网络拓扑结构的林火监测定位的应用研究

无线传感器网络的发展为林火监测提供新的计算模式。大量部署在监测区域中的传感器节点,可以通过自组织的方式形成无线传感器网络,实现对监测区域信息的感知,其中目标的定位技术已成为目前研究热点之一。由于受环境、硬件故障和障碍物等诸多因素的影响,传感器节点所采集的数据传输过程中易产生较大误差,形成错误数据,从而对定位造成严重影响。尽管有众多定位算法和模型,但针对联合拓扑结构实现定位的研究还较罕见,针对此问题,利用网络（几何）拓扑结构信息,提出一种用局部信息刻画全局分布密度信息的定位模型。

Application of Forest Fire Monitoring and Location-based Wireless Sensor Network Topology

The development of wireless sensor network for fire monitoring has provided a new calculation model. A large number of sensor nodes deployed in the monitoring area by way of self-organization can form a wireless sensor network, and realize the percep- tion on the information of the monitoring region. The target positioning technology has become one of the present research hot spots. Affected by the environment, hardware errors, and obstacles as well as other factors, the data collected by the sensor nodes can easily produce larger deviations during data transmission and therefore form error data, which caused serious impacts on positioning. Al- though many localization algorithms and models have been put forward, the studies on the jointed topological structure realizing positio- ning are rare. In this paper, using the network （geometric） topology information, a model which applies local information to depict the global distribution density of positioning information was put forward to solve the above problems.