单灯监测管理系统中网络节点信息处理的研究

发布时间：2018-03-16 02:08

  本文选题：助航灯光　切入点：无线传感器网络　出处：《中国民航大学》2016年硕士论文　论文类型：学位论文

【摘要】：机场助航灯光系统是保障飞机安全起降的重要目视助航设备。单灯监测管理系统可实现灯光系统的自动巡检和维修优化管理,提高灯光助航设备的保障能力。单灯监测管理系统由单灯监测无线传感器网络和单灯信息管理系统两部分组成。单灯监测无线传感器网络采集和传输灯位巡检信息,单灯信息管理系统负责巡检数据等信息的管理。如何降低网络节点能耗和对节点采集的信息进行有效管理是系统需要解决的关键问题。实现节点监测信息的压缩是降低无线传感器网络节点能耗、延长无线传感器网络使用寿命的重要手段。本文对簇头节点和汇聚节点上节点监测信息的时空相关性进行了分析,对各类数据压缩算法的可行性进行了论证。在此基础上提出了差分编码和管道压缩算法相结合的数据压缩方案。以监测信息在不同共享前缀位数下的压缩效果对比为基础,制定了优化的数据压缩策略。数据压缩策略决定了管道压缩算法需要处理的最优共享前缀位数。对共享前缀提取算法的功能和运行时间在硬件平台上进行了测试,证明了提取方法的可行性。对管道压缩算法进行了改进和仿真实验。仿真结果表明,改进的管道压缩算法能够将簇头节点和汇聚节点的数据压缩为初始数据量的60%左右。为弥补事后维修在灯光系统保障中存在的不足,以视情维修为指导、依照管理信息系统的设计方法建立了C/S模式的单灯信息管理系统。该系统可为工作人员开展视情维修提供决策依据。单灯信息管理系统的应用为进一步提高灯光系统的保障能力和民航飞行的安全打下基础。
[Abstract]:The airfield navigation light system is an important visual navigation aid equipment to ensure the aircraft safe take-off and landing. The single lamp monitoring management system can realize the automatic inspection and maintenance optimization management of the lighting system. Single lamp monitoring and management system consists of two parts: single lamp monitoring wireless sensor network and single lamp information management system. Single lamp monitoring wireless sensor network collects and transmits lamp level patrol information. The single lamp information management system is responsible for the management of information such as patrol data. How to reduce the energy consumption of network nodes and effectively manage the information collected by nodes is the key problem to be solved in the system. The compression of node monitoring information can be realized. To reduce the energy consumption of wireless sensor network nodes, In this paper, the temporal and spatial correlation of monitoring information on cluster head node and convergence node is analyzed. The feasibility of all kinds of data compression algorithms is demonstrated. On the basis of this, a data compression scheme combining differential coding and pipeline compression algorithm is proposed, which is based on the comparison of compression effects of monitoring information under different shared prefix bits. An optimized data compression strategy is developed, which determines the optimal number of shared prefix bits to be processed by the pipeline compression algorithm. The function and running time of the shared prefix extraction algorithm are tested on the hardware platform. The feasibility of the extraction method is proved. The pipeline compression algorithm is improved and simulated. The simulation results show that, The improved pipeline compression algorithm can compress the data of cluster head node and convergence node to about 60% of the initial data. According to the design method of management information system, a single lamp information management system based on C / S mode is established. The system can provide decision basis for staff to carry out maintenance according to the situation. The application of single lamp information management system can further improve the lighting. The support capability of the system and the safety of civil aviation flight lay the foundation.
【学位授予单位】：中国民航大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：V351.32
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本文编号：1617848