无线多功能火灾报器的设计与实现.docVIP

本科生毕业论文 毕业论文题目无线多功能火灾报警器的设计与实现 学 生 姓 名 所 在 学 院 专业及班级 指 导 教 师 完 成 日 期 无线多功能火灾报警器的设计与实现 摘要 随着现代家庭用电量、用火正在逐年的增加，家庭火灾发生的频率也越来越高，无线多功能火灾报警器也随之被广泛应用于各种场合。 本课题所研究的无线多功能火灾报警器采用STC89C51为核心控制器，根据不同火情选择多款适宜的火灾传感器，本课题中采用的是温度传感器DS18B20、气体传感器MQ-2、自制的烟雾传感器等。通过这些传感器，当环境中温度、烟雾浓度、可燃气体浓度等发生变化时系统会发出灯光报警信号，以此来实现有线报警，并在有线报警器的基础上加进无线通信模块，从而实现无线报警，让人们及时发现火灾。 关键词：温度传感器DS18b20；气体传感器MQ-2；火灾报警；无线数传 Abstract Along with the modern home with electricity,fire consumption increases, the frequency of home fires is getting higher and higher. The fire-alarm have also been widely used in various occasions. In this paper,wireless multi-function fire alarm using STC89C51 as core controller.Experiments proved that this detector can detect fire in complex surroundings through replacement of different sensors with very high reliability. In this paper, we used such as temperature sensor DS18B20, gas sensor MQ-2, smoke sensor which we made it by ourselves. Through these sensors, when the temperature, smoke concentration, combustible gas concentration changes in the environment, system will give out sound and alarm signal to lineate alarm, and the wireless fire-alarm is basis on the lineate alarm that added wireless communication module. For this reason, people can discover fire as soon as possible. Key words: temperature sensor DS18b20; gas sensor MQ-2;fire alarm; wireless digital transmission 目录 摘要. .............................................................1 Abstract. ..........................................................2 1 绪论...........................................................4 1.1 课题的研究背景.............................................4 1.2 课题的研究目的与意义.......................................4 1.3 火灾报警器的发展与现状.....................................5 1.4 课题的研究内容.............................................6 2 火灾报警器的总体方案设计....................................... 6 2.1 系统的功能要求.....