【正文】 . This paper designed a family security work based on wireless sensor. The sensor nodes in the work use ultralow power singlechip MSP430 as MCU, use infrared sensors to detect intrusion shot, use environmental testing sensor at room to monitor temperature, smoke and gas and other bustible gases, and ZigBee wireless munications work will be set up to send detection message to the remote base station. Base station sends the receive data to the host puter through serial munication, host puter software processes data processing, realtime displays the monitor value of the abnormal (intrusion, fire, gas leak, etc.) and takes alarm. Because of good security of the system without cabling, laid convenience, low power consumption, small size, low cost, and with a certain degree of intelligence, can effectively increase the security level of the family. Keywords: Home burglar alarm system。網(wǎng)絡(luò)中的傳感器節(jié)點用 MSP430 超低功耗單片機作為 MCU，采用紅外對射傳感器檢測入侵，環(huán)境檢測傳感器檢測室溫、煙霧和煤氣等可燃氣體，并通過 ZigBee 組建無線通信網(wǎng)絡(luò) 將檢測信號發(fā)送到遠端基站，基站接收傳感器節(jié)點發(fā)來的數(shù)據(jù)通過串口通信發(fā)送給上位機，上位機軟件對數(shù)據(jù)進行處理，實時顯示監(jiān)測值，并對異常情況（入侵、火災(zāi)、煤氣泄漏等）進行報警。 1 目 錄 中文摘要 .......................................................................................................................... 1 英文摘要 .......................................................................................................................... 2 1 引 言 ........................................................................................................................ 3 2 概 述 ........................................................................................................................ 4 無線傳感器網(wǎng)絡(luò)（ WSN） ................................................................................... 4 無線傳感器網(wǎng)絡(luò)（ WSN）的結(jié)構(gòu) ................................................................ 4 無線傳感器網(wǎng)絡(luò)（ WSN）的特點和功用 .................................................... 5 家庭安防系統(tǒng) ........................................................................................................ 6 傳統(tǒng)家庭安防的方法 ..................................................................................... 6 基于無線傳感器的家庭安防網(wǎng)絡(luò)的優(yōu)點 ..................................................... 6 3 系統(tǒng)的總體設(shè)計 ........................................................................................................ 8 系統(tǒng)的組成結(jié)構(gòu) .................................................................................................... 8 系統(tǒng)開發(fā)環(huán)境 ........................................................................................................ 9 4 系統(tǒng)硬件設(shè)計 .......................................................................................................... 10 基站模塊設(shè)計 ...................................................................................................... 10 CC2430 無線單片機 ...................................................................................... 10 TSZigBeeCC2430 無線模塊 ....................................................................... 10 傳感器節(jié)點的設(shè)計 .............................................................................................. 13 MSP430 單片機系統(tǒng) ..................................................................................... 13 紅外線對射模塊設(shè)計 ................................................................................... 15 室內(nèi)檢測傳感器節(jié)點設(shè)計 ........................................................................... 16 溫度傳感器 DS18B20 .................................................................................. 16 煤氣傳感器 MQ5 ........................................................................................ 18 煙霧傳感器 MQA214 ................................................................................... 19 系統(tǒng)硬件 PCB 板設(shè)計相關(guān)問題 ........................................................................ 20 5 系統(tǒng)軟件設(shè)計 .......................................................................................................... 21 紅外線對射節(jié)點軟件流程圖 .............................................................................. 21 室內(nèi)檢測傳感器節(jié)點軟件流程圖 ...................................................................... 22 6 電路調(diào)試與實驗結(jié)果 .............................................................................................. 24 硬件電路調(diào)試 ...................................................................................................... 24 焊接 ............................................................................................................... 24 調(diào)試 ............................................................................................................... 24 調(diào)試總結(jié) ....................................................................................................... 24 軟件測試 .............................................................................................................. 25 2 MSP430 單片機的調(diào)試流程 ......................................................................... 25 調(diào)試 ............................................................................................................... 25 調(diào)試結(jié)果總結(jié) ............................................................................................... 26 結(jié) 論 ............................................................................................................................ 27 謝 辭 ............................................................................................................................ 27 參 考 文 獻 .................................................................................................................. 28 附錄一：硬件電路原理圖 ............................................................................................ 29 附錄二： PCB 圖及實物圖及上位機界面 .................................................................... 32 附錄三：程序源代碼 ...........................