文档介绍：摘要
为了随时了解煤矿的空气质量状况,设计了一种基于无线传感器网络一氧化碳监测系统。由无线传感器网络及GPRS网络组成的CO质量监测系统可以实现远程实时数据采集。大量的传感器节点部署在监测区域,负责采集CO信息,再经GPRS网络传送到与Intemet网络相连的远端监控中心;工作人员通过对接收的数据进行分析,及时发布相应信息,为煤矿安全提供依据。ZigBee技术是近几年兴起的一种短距离无线通信标准,在无线传感器网络有自身独特的优势,因此基于ZigBee的气体浓度监测系统应运而生。
以煤田火区一氧化碳气体检测为背景,设计实现基于ZigBee气体浓度监测系统,主要工作有以下方面:
(l)研究了ZigBee协议标准,以及协议框架。
(2)根据具体环境,给出气体浓度监测系统总体结构设计和网络拓扑结构。
(3)选择主要器件和开发平台,完成终端节点的硬件设计,实现了数据采集模块、无线发送模块、电源供电模块。
(4)研究了ZigBee精简协议栈,完成终端节点及协调器应用程序。
(5)在IRM环境下,完成基于节点软件设计,实现了相应等功能。
(6)对气体浓度监测系统进行实验性的测试,给出测试结果。通过对气体浓度监测系统的设计实现与运行测试,基本达到了设计要求,充分体现了ZigBee技术在监控领域的优势。
此外,论文还设计了传感器网络节点的硬件电路:包括无线收发模块和扩展模块。
论文对所设计的层次型无线传感器网络进行了实验,对实验结果进行了分析。实验结果表明:网络能够成功实现拓扑结构的建立,并且使数据按照所设计的机制进行传输,到达了预期的设计目标。
关键词:无线传感器网络;GPRS;一氧化碳;检测系统;ZigBee;
Abstract
In order to enable us to keep abreast of coal mine quality,co monitoring systems based on the wireless works is designed. From wireless works and work of carbon monoxide monitoring system can bring about long-distance real-time data collection from a large number of sensor nodes deployed in the region to monitor for the acquisition of carbon mono- xide information,via works to deliver the information tothe far-monitoring centre which conn-
ected the the staff through the analysis of the data which were received and published timely it information, provide the basis for urban planning. Passed the test of the system, the system is work- ing well. The main contents and conclusions are as is a kind of standard that emerges in recent years as short distance munieation technical,and hasits own unique superiority when it is applied In the wireless the Gas Density Monitoring system based onZigBee emerged as the times require.
The paper designed and implemented the system based on ZigBee against a backdrop of sme- main work is as follows:
the zigBee protocol standards and framework·
of the over all structure of the Gas Density Monitoring system work topology depe- nd on specific environme