Hydrological Sensor Network Deployment Optimization

Hydrological information is generally collected through the network of hydrological stations, timely and accurate hydrological information collection and analysis is based on the work of the Water. Sensor network can monitor the object timely access to objective information, the hydrological information collection has a very broad application prospects. Hydrological sensor networks will be applied to optimize the hydrologic network deployment, or deployment of existing programs to further adjust and optimize, in addressing the hydrological information collection automation, real-time monitoring regimen to improve the monitoring network for the accuracy and timeliness of such issues has important theoretical and practical significance.This hydrological information collection for the problems, in-depth analysis of the sensor network physical topology, density analysis of the advantages to study the hydrological sensor network partition problem, a node deployment planning and deployment optimization programs, and applications Huai River tributaries of Xinyang City area.This dissertation includes forth parts, which are introduced in details as follows:(1) Retrospective analysis of the hydrological area, hydrological station network planning, sensor networks and other related theories discussed hydrological station network planning and sensor networks research frontier problems, combined with hydrological sensor networks in hydrological information collection aspects of the application, put forward the main issues this paper.(2) In-depth study of the cluster analysis, and applied to hydrological sensor network partition. In order to study regional hydrological characteristics of a variety of hydrological parameters for the index, consider the hierarchical sensor nodes, node reliability, and data summary way, according to characteristics of the river between the upstream and downstream hydrological and administrative divisions to carry out hydrographic partition of sensor networks, access partition effect is satisfactory. (3) According to watershed characteristics, rainfall model using surface average rainfall, combined with the deployment of traffic monitoring nodes in a straight line principle, the preliminary design of a deployment plan, and within the study area, rainfall, flow, water level, evaporation and other types of sensor nodes deployment, using Comparative analysis, demonstration of the program, the results show that the program to some extent to meet the hydrological monitoring requirements.(4) Analysis of the impact of hydrological sensor network deployment optimization, network, communications, sensor nodes and other major factors that determine the physical topology of a sensor network, optimization of the density of the standard, according to GAF algorithm, the initial deployment of the network node is optimized program in improving the network of monitoring stations in terms of accuracy and timeliness of satisfactory results obtained.