摘要本文设计了一个燃气泄漏报警与应急系统，以 MCS-51 单片机为核心，利用气敏传感器、检测电路、报警电路，并用 LED 显示当前环境实时温度。当环境中泄漏气体浓度超过限制时，系统发出声光报警，同时打开排风扇应急。当警报解除时，可以复位电路，各个功能正常运作。本设计共分两部分，硬件系统设计和软件系统设计。硬件部分利用气敏传感器和温度传感器，对环境中的燃气浓度进行检测，经过单片机系统将处理的数据送LED 显示实时温度，声光报警电路由蜂鸣器和发光二极管组成。软件部分用 C 语言进行编程，采纳模块化设计思想。该系统通过调试后，能够较好的完成燃气泄露报警和温度显示，并对燃气泄漏进行相应的处理。关键词:燃气泄漏；报警；应急；温度检测AbstractThis paper designs a gas leak alarm and emergency system, with MCS - 51 single-chip microcomputer as the core, and use of gas sensors, detection circuit, alarm circuit, and LED display the current environmental real-time temperature. When the concentration of gas leakage environment than limit when acousto-optic alarm, open a platoon emergency. While warnings, can reset circuit, each function normal operation.The design of two parts, hardware design and software design system. The hardware part USES gas sensors and temperature sensor, the gas concentrations of environment, through the data processing SCM system will send LED display real-time temperature, sound-light alarm circuit composed by the buzzer and light-emitting diodes. Software part C language program, modular design thought. The system through the debugging, can better finish gas leak alarm and temperature display, and gas leakage corresponding processing.Key words:gas leak, Alarm, Emergency, Temperature detection目 录1 绪论 11.1 课题讨论的背景 11.2 课题讨论的目的 11.3 国外讨论现状与进展动态 21.4 本文的容安排 42 方案论证 53 系统硬件设计 73.1 单片机 73.2 A/D 转换器的选择 133.2 LED 数码管 163.3 18B20 温度传感器 173.4 MAXL813L...
