无线地震仪传感网组网协议优化研究
发布时间：2019-03-28 17:26
【摘要】：无缆自存储地震仪的无缆化是野外施工追求的重要目标之一。但无缆化的同时,状态信息及勘探数据不能实时回收成为一个影响其应用的严重瓶颈。无线地震仪传感网是由大量的无缆地震仪节点组成的无线网络,在地质勘探领域有广阔的应用前景。现有的无线传感网组网协议不能直接应用于地震仪传感网,野外低功耗要求地震仪节点的通信能力和组网协议的能耗要小,一次勘探过程中需要的地震仪节点众多,节点上的数据量又大,为实时回收地震仪节点上的状态信息及数据,必须根据地震勘探的工作特点,研究有效的自组网协议是实现无线地震仪传感网的关键问题。本文结合公益性行业基金项目《无缆自定位地震勘探系统研制》的实际需求,开展自组网协议的优化研究。 针对地震勘探的实际工作需求,分别研究地震传感网中的带状拓扑和方阵状物理拓扑下的组网协议优化算法,主要工作如下： 1)地址分配算法的研究。分析了Cluster-Tree中的分布式地址分配算法,由于其不能满足无线地震仪传感网中百跳级以上的需求,提出了一种度有限的极大深度树地址分配算法,根据带状物理拓扑的特点,通过限制逻辑树中每层的路由节点的数目设计新型树形结构,减少了浪费的预留地址数,扩展了路由能够支持的网络最大深度,并对算法进行了仿真分析。 2)基于带状拓扑的组网路由改进及实现。基于论文改进的地址分配算法,针对无线地震仪传感网中带状物理拓扑的特点,设计并实现了适用于带状物理拓扑的组网协议。从入网唤醒、选择父节点和解决主线回绕三个方面进行重点研究,改进了路由寻路机制,提出了新的路由维护机制,重点解决了主线节点一旦断开时出现大面积网络失效的问题。 3)针对三维地震勘探中方阵状物理拓扑的特点,结合无线定位算法将地震仪方阵拓扑分为多个带状拓扑,设计并实现相应的组网及维护机制。研究了基于RSSI改进的加权质心定位算法,使用了动态获取路径损耗因子的机制。用改进的定位算法将方阵状拓扑分割为带状拓扑,再分别对每个子拓扑分别组网,并设计入网机制和维护机制。 4)在OMNET++平台下对带状拓扑和方阵状拓扑的组网协议分别进行仿真。研究了带状拓扑长度、网络节点密度对带状组网的影响和拓扑切割、拓扑规模对方阵状拓扑组网的影响。最后在嵌入式平台实现了带状组网协议并进行组网测试。
[Abstract]:The untwisting of the cable-free self-storage seismograph is one of the important goals in the field construction. But at the same time, the state information and exploration data can not be recovered in real time as a serious bottleneck affecting its application. The wireless seismograph sensing network is a wireless network composed of a large number of cable-less seismograph nodes, and has wide application prospect in the field of geological exploration. the prior wireless sensor network networking protocol can not be directly applied to the seismograph sensing network, the field low-power consumption requires the communication capability of the seismograph node and the energy consumption of the networking protocol to be small, the number of seismograph nodes required in the one-time exploration process is large, the data volume on the node is large, In order to recover the state information and data of the seismograph node in real time, it is necessary to study the effective self-networking protocol to realize the key problem of the sensor network of the wireless seismograph according to the characteristics of the seismic exploration. In this paper, the research on the optimization of the self-networking protocol is carried out in connection with the actual demand of the non-cable self-positioning seismic exploration system. According to the actual work demand of the seismic exploration, the network protocol optimization algorithm under the strip-like topology and the matrix-like physical topology in the seismic sensing network is respectively studied, and the main work is as follows: lower:1) address assignment algorithm In this paper, the distributed address assignment algorithm in Cluster-Tree is analyzed, because it can't meet the requirement of more than 100 hops in the sensor network of the wireless seismograph, a finite depth tree address assignment algorithm with limited degree is proposed, which is based on the band-shaped physical topology According to the method, the novel tree structure is designed by limiting the number of the routing nodes in each layer in the logic tree, the wasted reserved address number is reduced, the maximum depth of the network which can be supported by the route is expanded, and the algorithm is simulated true analysis.2) Network-based routing based on ribbon topology Improvement and implementation. Based on the improved address assignment algorithm, the paper designs and implements the band-shaped physical topology for the characteristics of the band-shaped physical topology in the sensor network of the wireless seismograph. In this paper, a new routing maintenance mechanism is proposed, and a new route maintenance mechanism is proposed, which mainly solves the problem that the main line node has large area network once it is disconnected to solve the problem of failure.3) In view of the characteristics of the matrix-like physical topology in the three-dimensional seismic exploration, the matrix topology of the seismograph is divided into a plurality of strip-shaped topologies in combination with a wireless positioning algorithm, In this paper, a weighted centroid localization algorithm based on the improvement of RSSI is studied, and the dynamic acquisition path is used. the matrix-like topology is divided into a band-like topology by an improved positioning algorithm, and each sub-topology is respectively connected with each sub-topology, and the network is designed mechanism and maintenance mechanism.4) Group-like topology and matrix-like topology under the OPMNET ++ platform The network protocols are simulated respectively. The effects of the length of the strip-like topology and the density of the network node on the band-like network and the topology cutting and the topology scale of the network are studied. In the end, the band-form networking is realized in the embedded platform
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P631.43;TN929.5;TP212.9
本文编号：2449075
[Abstract]:The untwisting of the cable-free self-storage seismograph is one of the important goals in the field construction. But at the same time, the state information and exploration data can not be recovered in real time as a serious bottleneck affecting its application. The wireless seismograph sensing network is a wireless network composed of a large number of cable-less seismograph nodes, and has wide application prospect in the field of geological exploration. the prior wireless sensor network networking protocol can not be directly applied to the seismograph sensing network, the field low-power consumption requires the communication capability of the seismograph node and the energy consumption of the networking protocol to be small, the number of seismograph nodes required in the one-time exploration process is large, the data volume on the node is large, In order to recover the state information and data of the seismograph node in real time, it is necessary to study the effective self-networking protocol to realize the key problem of the sensor network of the wireless seismograph according to the characteristics of the seismic exploration. In this paper, the research on the optimization of the self-networking protocol is carried out in connection with the actual demand of the non-cable self-positioning seismic exploration system. According to the actual work demand of the seismic exploration, the network protocol optimization algorithm under the strip-like topology and the matrix-like physical topology in the seismic sensing network is respectively studied, and the main work is as follows: lower:1) address assignment algorithm In this paper, the distributed address assignment algorithm in Cluster-Tree is analyzed, because it can't meet the requirement of more than 100 hops in the sensor network of the wireless seismograph, a finite depth tree address assignment algorithm with limited degree is proposed, which is based on the band-shaped physical topology According to the method, the novel tree structure is designed by limiting the number of the routing nodes in each layer in the logic tree, the wasted reserved address number is reduced, the maximum depth of the network which can be supported by the route is expanded, and the algorithm is simulated true analysis.2) Network-based routing based on ribbon topology Improvement and implementation. Based on the improved address assignment algorithm, the paper designs and implements the band-shaped physical topology for the characteristics of the band-shaped physical topology in the sensor network of the wireless seismograph. In this paper, a new routing maintenance mechanism is proposed, and a new route maintenance mechanism is proposed, which mainly solves the problem that the main line node has large area network once it is disconnected to solve the problem of failure.3) In view of the characteristics of the matrix-like physical topology in the three-dimensional seismic exploration, the matrix topology of the seismograph is divided into a plurality of strip-shaped topologies in combination with a wireless positioning algorithm, In this paper, a weighted centroid localization algorithm based on the improvement of RSSI is studied, and the dynamic acquisition path is used. the matrix-like topology is divided into a band-like topology by an improved positioning algorithm, and each sub-topology is respectively connected with each sub-topology, and the network is designed mechanism and maintenance mechanism.4) Group-like topology and matrix-like topology under the OPMNET ++ platform The network protocols are simulated respectively. The effects of the length of the strip-like topology and the density of the network node on the band-like network and the topology cutting and the topology scale of the network are studied. In the end, the band-form networking is realized in the embedded platform
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P631.43;TN929.5;TP212.9
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