智能楼宇消防报警系统

摘要

随着科学技术的快速发展，整个社会进入了计算机时代，传感器技术也因信息时代的快速发展得到明显的提高，越来越多的领域被用在其中，对它的要求也是越来越高，需要供求也是变得越来越急迫。电子产品被越来越多的应用在我们的生活中，很明显的就可以看到火灾越来越多的发生在我们的生活当中，火灾隐患也是时刻潜伏在我们的生活当中。怎么避免火灾的产生以及降低火灾给我们造成的损失是需要我们急迫解决的问题，因此设计并完善智能火灾警报系统是我们当代大学生的任务，并且将我们设计的产品广泛的应用到我们的日常生活当中，把火在组织在刚开始的时候，防患于未然，把我们的财产毁灭降到最低。

经典的火灾报警器经常会出现总线数据传输不稳定、长远距离的数据传输可靠性能差还有扩展性能不方便的因素, 最近几年来在各种电路系统中性能优良、价格便宜的MCU芯片被广泛应用其中,特别是电气自动控制方面,我们所经常说的那些问题也有了很大的改变。

本篇主要讲的是以nRF24L01无线传输模块和SIM900A模块相结合的联合无线火灾报警系统的设计方法，这个方案用单片机STC89C52作为控制芯片，用MQ-2烟雾传感器监测烟雾，DS18B20温度传感器监测温度，两种传感器相结合联合报警。设计中包括了温度采集模块、烟雾采集模块、采集数据的传输、声光报警以及其他的外围电路，此外本设计也包括了相应的软件设计，实现火灾报警功能这个设计结构简单、操作方便、价格较低，具有较高的实用性。

关键词：单片机STC89C52；无线模块nRF24L01；DS18B20；MQ-2；SIM900A

Abstract

With the rapid development of science and technology, and society as a whole has entered the computer age, sensor technology, but also because of the rapid development of the information age has significantly increased, more and more areas of use, its growing demand, supply and demand more and more urgent need. Electronic products, our lives more applications, more fire, fire danger you always live in our lives can be seen happening. To avoid the risk of fire, we are solving the most pressing problems of our losses caused by fire, so intelligent design to reduce fire alarm system, in order to improve the problem of university students, our company's product design, it is widely used in our lives. First, the fire within the organization, we have to reduce the property damage precaution.

Classical fire alarm device consists of, in many cases, an unstable bus data transmission, long-term reliability of the data transmission distance? Low extensive chip, high-performance show reasons for the decline, the most recent years, various circuit system can automatically control the inconvenience expansion in particular, those issues, we again, dramatically changed, and application software.

This film describes a wireless fire alarm system relies on in nrf24l201 wireless data transmission module design method of this chapter and sim900a module common wireless fire alarm systems together, and this procedure stc89c52 control module, mq2 Smoke In order to monitor temperature sensing, smoke, ds18b20 temperature sensor to supervise composed sensor. Designed to cope with the software design, implementation, simple design structure of the fire alarm functions, operations, prices have also been included in the design, coupled with the temperature obtaining module, smoke obtaining module for transmission of data, sound and light alarms or other peripheral circuits included, practicality.

Key words: MCU STC89C52；nRF24L01；DS18B20；MQ-2；SIM900A