江西理工大学应用科学学院毕业设计
基于Zigbee技术的煤矿瓦斯监测系统
江西理工大学应用科学学院毕业设计
摘 要
随着我国经济的快速发展，各行各业对煤炭的需求急剧增加，各种矿难事故也频繁发生，在安全问题上，未能做到防患于未然。此次设计的主要目的是解决瓦斯气体的检测与报警。文中首先阐述了本论文所使用的无线传输协议zigbee，其次着重介绍了我们此次基于甲烷传感器mjc4 3.0l和ARM单片机的煤矿瓦斯监测报警器。本设计的硬件电路包括浓度检测，A/D转换，ARM检测与数据处理，数据显示电路，串口通信及各控制电路；软件设计包括浓度采集，数据转换及处理，动态显示及浓度控制等。通过软硬件的设计可实现对瓦斯浓度的监测并且当其浓度超过预警值时可进行声光报警。可有效防止和避免瓦斯燃烧或爆炸的恶性事故发生，对避免人员伤亡财产损失有着积极的作用。该装置具有经济实用、数据直观准确、适应性强等特点，可大量应用于煤矿井下作业现场。
关键词：无线传感器网络；Zigbee 网络；瓦斯监测;stm32
江西理工大学应用科学学院毕业设计
Abstract
With China's rapid economic development, all walks of life the demand for coal increased dramatically, and the occurrence of a variety of mining accidents, making the safe production of coal is facing tough challenges. The main content of the design of coal mine monitoring and alarm, from a subject point of view, the main design is divided into two parts: First, the coal mine gas monitoring system alarm. First described CH4monitoring system with the development and condition followed focused on the design of a coal mine gas monitoring based methane sensor MQ-5 and MCU stm32 alarm. The design of the hardware circuit, including the concentration detector, A / D conversion, single-chip system, the data show circuit and control circuit; software design, including the concentration acquisition, data conversion and processing, dynamic display and concentration control. Hardware and software design allows for the monitoring of gas concentration and when its concentration exceeds the alarm value, alarm sound and light and ventilation to reduce the gas concentration. Can effectively prevent and avoid the gas fire or explosion, fatal accidents, to avoid casualties and property loss has a positive role. The device has the economical and practical, intuitive and accurate data, adaptable, and can be applied to a large number of miners working underground site gas detection.
Key Words：Wireless sensor networks；Zigbee；Gas Monitor;stm32
江西理工大学应用科学学院毕业设计
目 录
第1章 引 言 ................................................ 1 1.1课题研究背景及意义 .......................................... 1 1.2课题的主要研究内容与要求 .................................... 3 第2章 系统功能介绍及方案选择 ............................... 4 2.1 系统性能描述 .............................................. 4 2.2 ZIGBEE无线通讯协议介绍 ..................................... 4 2.3 系统方案的选择............................................. 5 2.3.1 系统设计方案............................................. 5 2.3.2 传感器的选择............................................. 6 2.3.3 CC2530介绍 .............................................. 10 2.3.4 CORTEX-M3介绍 ............................................ 11 2.4 本章小结 ................................................. 13 第3章 硬件系统设计 ........................................ 14 3.1 硬件系统功能设计 .......................................... 14 3.2 各模块仿真原理图及工作原理 ................................ 15 3.2.1 信号采集电路............................................ 15 3.2.2 单片机最小系统电路 ...................................... 16 3.2.3 液晶显示电路............................................ 16 3.2.4 串口通信以及电源电路 .................................... 16 3.3 本章小结 ................................................. 17
江西理工大学应用科学学院毕业设计
第4章 软件设计 ............................................ 18 4.1 软件设计流程图............................................ 18 4.2
各部分软件设计 .......................................... 19
4.2.1 信号采集软件设计 ........................................ 20 4.2.1 串口通讯软件设计 ........................................ 21 4.3 本章小结 .................................................. 24 总结 ...................................................... 28 致谢 ...................................................... 28 参考文献 .................................................... 28 附录 ...................................................... 28