面向火电厂设备运行监测的无线传感器网络研究

发布时间：2017-12-30 20:16

本文关键词：面向火电厂设备运行监测的无线传感器网络研究　出处：《华北电力大学(北京)》2016年硕士论文　论文类型：学位论文

【摘要】：传感器网络是保障火力发电厂正常运行的重要组成部分,为监测、评估及控制火力发电厂设备运行状态提供依据。然而,当前我国火力发电厂仍普遍采用有线传感器网络,存在建网成本大、维护复杂及可扩展性差等问题,事实上,这些问题主要来源于有线传感器网络无法回避的复杂布线。为解决上述问题,本文在火力发电厂引入无线传感器网络以代替传统的有线传感器网络,在保证精确高效监测设备运行状态的同时,避免了有线传感器网络的布线难题。本文根据火力发电厂运行设备监测特点,建立以子系统为监测单位的分层分簇无线传感器网络,并基于该分层分簇无线传感器网络,深入研究了相应的网络模型、监测机制、故障检测机制、传输协议、数据上传机制及融合机制等,具体研究内容如下所述：1.在深入分析火力发电厂功能架构的基础上,建立了以子系统为监测单位的分层分簇无线传感器模型；并基于该模型设计了运行设备监测机制及传感器故障检测机制；2.基于本文所提出的分层分簇无线传感器网络模型,设计了面向子系统监测的无线传感器网络传输协议；包括基于图着色理论的分层分簇信道分配机制、基于优先级的载波侦听多路访问/冲突避免传输机制、分层分簇传感器网络数据包类型及帧格式。3.基于本文分层分簇无线传感器网络模型,设计了面向子系统监测的数据上传机制及融合机制,包括分层多精度监测数据上传机制及基于决策库的分层信息融合机制。
[Abstract]:The sensor network is an important part to ensure the normal operation of the thermal power plant, to provide the basis for monitoring, evaluation of operation state and control equipment of power plant. However, the current coal-fired power plants in China are still widely used in wired sensor network, cost, and maintenance of complex problems, poor scalability in fact, complex wiring these problems mainly come from the wired sensor network can not be avoided. In order to solve the above problems, this paper introduces wired sensor network wireless sensor network to replace the traditional in thermal power plant, in order to ensure the accurate and efficient monitoring of the running state of the equipment at the same time, to avoid the routing problem wired sensor network. Based on the characteristics of thermal power plant operation monitoring equipment in order to establish hierarchical subsystem, monitoring unit cluster wireless sensor network, and based on the hierarchical clustering algorithm in wireless sensor network, deep Research into the network model, the corresponding monitoring mechanism, fault detection mechanism, transmission protocol, data upload mechanism and integration mechanism, the specific research contents are as follows: 1. after analyzing the functional structure of the thermal power plant, built in hierarchical subsystem for cluster based wireless sensor monitoring unit based on the model; the model is designed to run the equipment monitoring mechanism and sensor fault detection mechanism; 2. layer based on clustering wireless sensor network model, designed for system monitoring protocol of wireless sensor network protocol; including cluster channel allocation mechanism based on hierarchical graph coloring theory, carrier sense multiple access / collision avoidance priority the transmission mechanism based on hierarchical cluster data sensor network packet type and frame format of.3. based hierarchical clustering wireless sensor network model based on Design Data uploading mechanism and fusion mechanism for sub-system monitoring, including layered multi precision monitoring data upload mechanism and hierarchical information fusion mechanism based on decision base.

【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP212.9;TN929.5;TM621

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