摘要

隨著中國(guó)經(jīng)濟(jì)的迅猛發(fā)展，人民生活水平的提高，購(gòu)車的家庭越來越多，私人汽車日益增多，治安狀況惡化，汽車被盜對(duì)有發(fā)生，汽車的定位與防盜也成為市場(chǎng)的一大需求。

目前汽車防盜系統(tǒng)存在存在功能簡(jiǎn)單、可靠性低、誤報(bào)警、報(bào)警距離短等缺點(diǎn)。GPS（Global Positioning System，全球衛(wèi)星定位系統(tǒng)）提供了一種可靠有效的車輛定位方法，而利用 GSM（globalsystemformobilecommunications，全球移動(dòng)通信系統(tǒng)）無線通信技術(shù)可將定位數(shù)據(jù)信息迅速傳遞到接收端，兩者結(jié)合形成 GPS/GSM 車輛監(jiān)控系統(tǒng)，為解決以上問題找到了一個(gè)很好的解決辦法。如果車主有一部收發(fā)短消息的GSM手機(jī)，防盜系統(tǒng)就可以實(shí)現(xiàn)實(shí)時(shí)報(bào)警，并且GPS可確定具體車輛的方位信息，便于查找丟失的汽車。

本文在對(duì)目前各種常規(guī)汽車防盜裝置的不足進(jìn)行分析的基礎(chǔ)上研究一種基于GPS/GSM的智能車輛防盜系統(tǒng)的軟硬件設(shè)計(jì)方案及其實(shí)現(xiàn)。該系統(tǒng)由STC12C5A60S2單片機(jī)、SIM300無線模塊、GPS接收機(jī)及防盜傳感器等組成。微處理器對(duì)收集到的信息進(jìn)行處理，確認(rèn)后可鎖死發(fā)動(dòng)機(jī)同時(shí)向車主手機(jī)或監(jiān)控中心發(fā)出信息，以實(shí)現(xiàn)汽車監(jiān)控，防止被盜。

關(guān)鍵詞:　GSM；GPS；汽車防盜系統(tǒng)

Abstract

With the rapid development of China's economy, the improvement of people's living standard, the principle of more and more families, private cars is growing and security situation is worse, car theft has to happen, car positioning and security has become a big market demand.

At present guard against theft system is simple and reliability have functional low, false-negatives, alarm short distance from shortcomings. GPS (global positioning system) provides a reliable and efficient vehicles positioning method, and use GSM (global system for mobile communications) wireless communication technology can will locate data information quickly passed to the receiver, both union form GPS/GSM vehicle monitoring system, to solve the above problem found a good solution. If the owner have a mobile phone short messages and send and receive the GSM, guard against theft system can realize real-time alarm, and GPS can determine the orientation of the specific vehicle information, it is easy to find the lost car.

In this paper at present various conventional lack of guard against theft system based on the analysis of the research based on GPS/GSM intelligent vehicle security system hardware and software design of the scheme and realization. The system consists of STC12C5A60S2 microcontroller, SIM300 wireless module, GPS receiver and guard against theft sensor etc. Microprocessor to collect the information processing, the engine can be confirmed at the cell phone owners locked or the monitoring center sends out information, so as to realize the car monitoring, prevent the theft.

Keywords: GSM; GPS; Guard against theft system

目錄

1 前言 1

1.1 課題背景 1

1.2 課題研究的目的和意義 1

2 系統(tǒng)組成及工作原理 2

2.1系統(tǒng)組成 2

2.2單片機(jī)控制核心 3

2.2.1 STC12C5A60S2系列單片機(jī)的內(nèi)部結(jié)構(gòu) 3

2.2.2 STC12C5A60S2單片機(jī)管腳說明 4

2.3 GPS模塊 8

2.3.1 GPS 概述 8

2.3.2 GPS系統(tǒng)原理及應(yīng)用 8

2.4  GSM通訊模塊 10

2.4.1 GSM通訊簡(jiǎn)介 10

2.4.2 GSM通訊模塊的選擇 10

2.4.3 SMS 短消息簡(jiǎn)介 11

2.4.4 SMS 的網(wǎng)絡(luò)體系結(jié)構(gòu) 11

2.4.5 SMS 的數(shù)據(jù)接口和控制模式 12

2.4.6 SMS 的特點(diǎn) 13

3 硬件電路設(shè)計(jì) 15

3.1系統(tǒng)總體設(shè)計(jì) 15

3.2 GPS芯片的輸出電路介紹 15

3.3 SIM300模塊輸出電路設(shè)計(jì)介紹 16

3.4 顯示模塊電路設(shè)計(jì) 17

3.4.1 12864概述 17

3.4.2 12864 管腳功能 17

3.4.3 顯示模塊的電路連接如圖所示： 18

3.5 傳感器模塊電路設(shè)計(jì) 19

4 軟件程序設(shè)計(jì) 21

4.1 軟件總體模塊介紹 21

4.2 串口通信處理 22

4.3 GPS定位數(shù)據(jù)處理 23

4.4 短信處理及AT指令 24

5 總結(jié) 26

致謝 27

參考文獻(xiàn) 28

附錄 30