无线火灾报警系统 毕业论文.docVIP

无线火灾报警系统 摘要 火灾还是一种终极型灾害，任何其他灾害最后都可能导致火灾。火灾能烧掉人类经过辛勤劳动创造的物质财富，使工厂、仓库、城镇、乡村和大量的生产、生活资料化为灰烬，一定程度上影响着社会经济的发展和人们的正常生活。火灾还污染了大气，破坏了生态环境。火灾不仅使一些人陷于困境，它还涂炭生灵，夺去许多人的生命和健康，造成难以消除的身心痛苦。STC89C52，该芯片具有高速、低耗能，功能强、价格低、寿命长，适合运行较为复杂的算法；采用DS18B20温度传感器与火焰传感器作为探测器。报警系统将传感器输出的电信号经放大滤波处理后送入STC89C52转换，得到的数字信号由单片机进行处理分析，判断是否发生火灾。当检测到火灾发生时，由火焰传感器监测到火灾信号，由温度传感器再次检测确认火灾信号，最终由GSM模块发出火灾信号给用户手机，检测终端进行火灾显示以及报警。系统的结构简单、性能稳定，使用方便，智能化程度高。由于采用了温度传感器和火焰传感器、烟雾气体传感器相结合探测方法，比使用单一的探测器能更加准确报警、降低了误报率。 关键词：无线火灾报警系统；传感器；GSM模块。 Abstract Fire or an ultimate type of disaster, and any other disaster eventually may result in fire. The fire can burn human created material wealth through hard work, factories, warehouses, towns, villages and a lot of production, subsistence reduced to ashes, to some extent, affect the socio-economic development and peoples normal life. The fires also pollute the atmosphere, the damage to the environment. The fire not only makes some people in dire straits, it also merciless, claiming many lives and health, resulting in difficult to eliminate physical and mental suffering. Wireless fire alarm system, as the early prediction of the fire, the fire put out, to protect personal and property safety, and has played an irreplaceable role. With the continuous development of science and technology, fire alarm systems will be further developed to the extent of its intelligence will become increasingly high. System using STC89C52, the chip has a high-speed, low energy consumption, strong function, low price, long life, suitable for running complex algorithms; DS18B20 temperature sensor and flame sentering processing into STC89C52 conversion, the digital signal processed by the microcosor as a detector. Alarm system to the sensor output signal by amplifying and filntroller, to determine whether the fire. To the fire signal detected when the fire broke by the flame sensor to monitor the testing to confirm the fire again by the temperature sensor signal, and ultimately issued by the GSM module