文档介绍：东莞理工学院城市学院
本科毕业设计
毕业设计题目:家用煤气泄漏报警控制器
硬件设计
学生姓名: 徐向文
学号: 200548073225
系别: 计算机与信息科学系
专业班级: 05电子信息工程(2)班
指导教师姓名及职称:刘林泉高级工程师
起止时间: 2009 年 3 月— 2009 年 6月
摘要
当今社会上,出现了许多煤气报警器,而这些产品大都是针对煤气的泄漏所做出的相应的报警,即为家庭式。但是随着社会的发展,煤气报警器也在发展。
微机控制技术、传感器在工业控制、机电一体化、智能仪表、通信、家用电器等方面得到了广泛应用,显著提高了各种设备的技术水平和自动化程度。因此对这些原理和结构我们就需要很好的了解并掌握。
煤气报警系统采用了RCM5700为系统的CPU,通过单片机系统设计实现对家用煤气的控制功能,由NG-CO-001电化学一氧化碳气体传感器对煤气进行检测,将所得的浓度值与设定浓度值相比较得到偏差。通过对偏差信号的处理获得控制信号,去调节煤气出气阀的通断,四个单元的煤气浓度对应模拟量利用A/D转换为数字量,并加入了键盘输入,从而实现对家用煤气漏气的控制。整个系统的硬件电路设计合理,性能安全可靠。
关键词: 电位器采样报警临界值煤气浓度
Abstract
In the current society, a lot of coal gas alarms have appeared, and these products are mostly to letting out corresponding alarms made of coal gas , it is family. But with the development of society, coal gas alarm develop control technology, sensors in the industrial control, mechatronics, smart instrumentation, communications, household appliances, etc. has been widely applied, significantly improved the technological level of equipment and degree of automation. Thus the structure of these principles and we need to understand and grasp the good.
Coal gas warning system adopt puter CPU of system,Design a realization through a single slice of machine system to the control function of household-use coal gas. The NG-CO-001 electricity chemistry carbon monoxide air spreads a feeling machine to carry on an examination to the coal gas pares density value and enactment density value gaining to get deviation,the processing that passes to the deviation signal acquires control signal and regulate coal gas to give vent to anger the of valve coal gas density corresponding analog quantity of unit utilize A/D person who changes figure into, and has joined key in,carry out the control that leaks air to the household-use coal gas hardware circuit of the whole system is reasonable in design, performance is safe and reliable.
Keyword: The electric potential device sampl
目录
1、绪论 1
、课题研究的背景