有害气体检测系统论文摘要

: with the development of social economy, buildings, structures the diversity of applied materials, all kinds of industry and the development of science and technology, flammable material increased, together with people living environment and lifestyle changes, increasing the risk of fire, fire, the fire caused the number of casualties and economic loss increase gradually. Fire is harmful to human survival as the enemy of, more and more attention by people. With the increasing of the high-rise building, fire hidden trouble increase. Once the fire, and will be of the lives and property of the people do great harm, so people begin to seek a kind of early detection method of fire, in order to control and extinguish fire, reduce loss, and safeguarding the safety of life.With the introduction of the development of science and technology, electronic technology to become effective means of the safety aspects of, many, many of the safety aspects of electronic products, is the life of people's right-hand man. This design using single chip computer technology with A/D conversion chip constructed A flammable gas detection alarm. When environment flammable or poisonous gas leak, when gas alarm detect combustible gas concentration reach the point of alarm Settings, flammable gas alarm will be issued a warning signal to remind workers to take security measures. This paper firstly introduces the design flammable gas detection alarm the main way and the advantage of single-chip microcomputer system; And then introduced the flammable gas detection alarm design process, and the hardware and software design of the system, and gives the software program design detailed steps, including each module of the program design and the whole system commissioning and simulation steps, the results.This design USES MQ-2 gas sensor as flammable gas the signal acquisition tools, the collected simulation voltage quantity after ADC0809 into digital signals. Single chip ADC0809 collection to the digital signal after calculation, if combustible gas concentration reach the point of single chip set alarm when will drive LED and a buzzer issued a warning signal. In no RanQiTi, some unknown risk, alarm can human control key change fire alarm initial value.

试着翻译如下，参考： In accordance to the coming of "Information Era", sensor technology has increasingly progressed, and its coverage is more and more extensive,meanwhile, the demand for it is also becoming more urgent and higher.The monitoring system for indoor hazardous gas we are designing now is in purpose of pre-detecting and alarming of any harmful gas indoors,thus help prevent and reduce risk aiming at protecting security of human health as well as property.This article is based on the core technology of resistor-based air sensor and TMS320F2812 DSP, it fulfills the function to display the gas density and enable communication of the upper serial ports, makes the significant exploration and study on the operating technology of alarming for hazardous gas, and holds a referring value in the area of monitoring implementation.