一氧化碳报警器论文毕设论文.doc

河南城建学院本科毕业设计（论文） 摘要  PAGE \* MERGEFORMAT I  PAGE \* MERGEFORMAT I 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。在微机控制技术、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。 鉴于单片机AT89C51具有高集成度等优点，开发设计了一种基于AT89C51的一氧化碳报警器，为了提高系统的灵敏度和准确性，系统采用了一种十分稳定的传感器MQ-7。该报警器对一氧化碳（CO）进行实时控制，当一氧化碳的浓度超过允许值时，控制电路进行报警。 关键词：一氧化碳，单片机，报警器，传感器河南城建学院本科毕业设计（论文） Abstract  PAGE \* MERGEFORMAT II 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 too.Microcomputer 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. Carbon monoxide alarm is designed based on AT89C51 with a high level of integration. In order to improve sensitivity and accuracy ,the electrochemical sensor is used. The carbon monoxide alarm is monitored on for real - time, when permitted vale of the concentration of carbon monoxide is exceeded,the control circuit will alarm, and it is program - controlled through external row fans and solenoid valve with . Key words ：carbon monoxide， MCU， alarm，electrochemical sensor河南城建学院本科毕业设计（论文） 目录  PAGE \* MERGEFORMAT IV 目 录  HYPERLINK \l _Toc28293