摘 要

随着中国经济的蓬勃发展和人民的生活水平的日益提高，汽车已经广泛深入到了普通百姓家中。随着人们使用汽车越来越频繁，以及对更加舒适的车内环境的要求，在汽车使用过程中人们有了新的诉求。在炎热的夏季，汽车在室外经过阳光长时间暴晒后，车内温度将非常高，当乘客要坐车时，车内温度会很不舒适，即使这时把汽车空调打开，也需要一段时间才能让车内温度逐渐降低。因此如果能在乘员进入汽车前，对汽车进行远程遥控预冷，将大大提高汽车的乘坐舒适性和使用的便利性。而在北方寒冷的冬天也是一样，车内温度不适宜人乘坐，此时如果能够提前对汽车进行预热，一方面能够将车内温度调节到舒适的温度，另一方面也可以让发动机保持在最佳的工作温度状态，以延长汽车发动机的使用寿命，同时也省去了预热汽车时车主等待的时间。

解决这些问题的关键在于要能够做到远程控制汽车空调的开启和关闭，而要让车辆空调工作就同时要启动发动机。本文通过利用51单片机开发板和GSM模块搭建车载的远程控制端模拟车辆接到命令做出相应操作；基于安卓应用开发环境设计和开发汽车室内温度与状态远程监控APP。本文的重点在于手机应用程序的设计，一方面要保证使用方便还要保证一定的安全性。对于手机和远程控制端之间的通信，本文充分考虑到了GSM信号覆盖范围广，同时SMS传输数据可靠性高、成本低等优点，利用短信对汽车发动机和空调进行远程控制，这大大提高了系统的稳定性和可靠性。

手机应用程序通过调用系统短信功能完成特定命令信息的发送，车主通过手机可远程实时监测汽车车内温度，决定是否提前启动发动机并开启空调调节车内温度趋向于舒适温度。这一远程遥控系统解决了车主冬夏两季取车时，车内温度不适宜乘客乘坐的问题。

关键词：安卓应用开发；远程控制；GSM模块

Abstract

With the development of China's economy and the improvement of people's living standards, the car has been widely in the ordinary people's home. With people using cars frequently, as well as the requirements of a more comfortable car environment, people have new demands in the using of the car. In the hot summer, after the car exposure to the sun outdoors, the temperature inside the car will be very high, when driver coming to the car, the temperature inside the car will very uncomfortable, even when the air conditioning opening, the car also need to spend a period of time to gradually reduce the temperature inside. Therefore, if we can control the car far away before the occupant enter the car, will improve the comfort and the convenience of the car greatly. As the same as the cold in northern winter, temperature inside the car is not suitable for people to drive. At this moment， if we can preheat the car in advance, on the one hand can adjust the temperature to a comfortable temperature, on the other hand can also keep the engine in the best working condition, at the same time eliminates the owners wait time when preheating the car.

The key to solve this problem is control the opening and closing of the car air conditioning remotely, and start the engine when let the vehicle air conditioning work at the same time. By using 51 MCU development board and GSM module to build the vehicle remote control terminal simulation vehicle received information and make corresponding operation, based on an Android application development environment, design and development app. The focus of this paper is on the design of mobile applications, on the one hand, to ensure that the use of convenience and security. This paper gives full consideration to the GSM signal covering a wide range, at the same time, the merits of low cost and high reliability of SMS data transmission, using SMS remote control automobile engine and air conditioning, and the data transmission reliability and control effectiveness is validated, can greatly improve the stability and reliability of the system.

The application complete specific information sent by using system call SMS function , the owner through the mobile phone can be real-time remote monitoring of the temperature of the automobile, and can decide whether to pre start engine and open air conditioning adjust interior temperature tends to a comfortable temperature. The remote control system to solve problem of the car interior temperature is not suitable for passengers both in summer and winter when taking the car

.

Key Words: Android application development; Remote control; The GSM module

目录

第1章 绪论 1

1.1研究背景和意义 1

1.2国内外研究现状 2

1.3主要研究内容 3

1.4研究方案 3

1.5本章小结 4

第2章 安卓手机客户端的实现 5

2.1 Android简介 5

2.2搭建Android开发环境 5

2.3 Android手机客户端开发的主要步骤 6

2.4手机客户端功能分析 8

2.5手机客户单的UI设计 9

2.6成果展示 9

2.7本章小结 10

第3章 远程控制端的搭建与实现 12

3.1远程控制端总体设计方案 12

3.1.1远程控制端的功能分析 12

3.1.2硬件选型和集成 12

3.2 GSM网络和SMS简介 13

3.3单片机程序设计 13

3.4 本章小结 15

第4章 总结与展望 16

4.1总结 16

4.2展望 17

参考文献 18

致谢 19

第1章 绪论

1.1研究背景和意义

自1886年德国工程师卡尔本茨发明了世界上第一辆公认的现代汽车以来，这一伟大的发明就极大地改善了人类生产和生活的方式，为人类的出行带来了极大的便利，也推动着人类社会的进步。在汽车百余年的发展历程中有着数次巨大的发展。而如今，汽车又面临着一次革命性的发展。在近几十年中，移动通信行业有了巨大的发展，而近几年随着智能手机的普及和互联网行业的蓬勃发展，随之诞生的车联网成为了汽车行业发展的下一个风口，这也成为了汽车发展的新方向。

随着中国经济几十年来朝气蓬勃的发展，人们的生活水平已经越来越高，买车对于大多数家庭来说已经变得不再那么遥远，汽车也已不再是少数人手中的奢侈品，而是广泛深入到了普通百姓家中。中国早已经成为了世界上汽车产销量最大的国家^[1]，而且我国的汽车保有量和每年新增的汽车驾驶员数量在世界也是名列前茅，虽然这些数字都十分惊人，但对于有着世界上最多人口的中国来说，任何的数字被平均分给中国十三亿人民之后都会变得很少，所以就有了下面的结果。如表1.1所示。