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毕业设计说明书
题目: 家庭智能紧急呼救系统设计
学院: 信息与通信学院
专业: 电子信息工程
学生姓名:
学号:
指导教师:
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题目类型: 理论研究实验研究√工程设计工程技术研究软件开发
2013 年 6 月 5 日
摘要
本设计介绍了家庭智能紧急呼救系统的设计以及工作原理。随着信息技术的飞速发展和人民生活水平大幅提高,人们对家居安全的重视程度不断提高。如今很多老人或儿童尤其是残疾人或有突发性疾病的患者等,在遇到突发事件时,如盗贼入室、火灾、燃气泄露、疾病求助等由于自身行动不方便或者过度惊慌没能发出报警的信息。最基本的电话求助已不能保证他们的居家安全,必须建立一个稳定、可靠、易操作的急救报警系统。
为了解决以上问题,本毕业设计通过GSM模块、煤气检测传感器、烟雾传感器、红外传感器与单片机的联接,实现对家庭的安全进行实时监测,当发生异常现象时发出报警的声音,通过GSM模块发出求救信息;同时设计无线求救模块,当有紧急情况时,可以通过无线求救模块发出求救信息。本设计也可以通过手机发送信息对系统进行复位以及获取当前每个传感器的实时信息如温度、气体浓度、红外传感器的状态,从而实现防火、防燃气泄漏、防盗的作用。
在这个系统当中,GSM模块与单片机之间的通信进行信息的双向传输是最关键的,因为如果不能确保它们之间的正常通信,就算是检测到了突发事件的发生,不能把求救信息发送出去,那么设计就失去了意义。
关键词:单片机;GSM;手机;传感器;无线模块
ABSTRACT
This design introduces a family of Intelligent emergency call system design and working principle. With the rapid development of information technology and a substantial increase in people's living standards, people are attaching increasing importance of home safety. Today, many elderly people or children, especially disabled or sudden illness of patients, when faced with an emergency, such as thieves burglary, fire, gas leaks, disease help. Inconvenient due to their own actions or excessive panic did not alarm information can be issued, the most basic telephone help can not guarantee the security of their home, you must create a stable, reliable, easy to operate the emergency alarm system.
In order to solve the above problems, the graduation project by GSM module, gas detection sensors, smoke sensors, infrared sensor and microcontroller connection to achieve real-time monitoring of the safety of the family, issued the alarm sound when an abnormal phenomenon, through the GSM module send out a distressinformation; designed wireless distress module, when there is an emergency situation, by wireless distress module sent out distress. The design can also send a message through the mobile phone to reset the system and access to real-time information for each sensor such as temperature, gas concentration, infrared sen