| With the improvement of the modern life,we are no longer content with comfortable and sweet environment.Everyboby pay attention to safe more and more than before,Especially, The fire emergency happened in shanghai jiaozhou road on Nov 15th 2010,which aggravate the tension of family security. So my topic is not only to ensuring the life safety,but also promoting the society stability and harmonions.In the view of the requirement of security alarm system and the defect of similar products in the market,this reseach propose an embedded intelligent family security alarm system based on ZigBee and ARM9.The new system inducts the information of the sensors,such as magnetic bead,IR,coal gas and so on.when the sensors find the abnormal conditions,the alarm device is started,with the aim of reducing the personnel casualty and the property damage.The novelty of this system is that the sensor signal is sent to monitoring end fast and accurately by zigbee wireless network,which not only omitting the wiring trouble and saving the cost, but also expanding the monitoring scope.This paper is emphatically introduced for all network system from hardware and software,the hardware uses the CC2430 of TI and TQ2440 belongs to TIANQIAN company in Guangzhou,the software uses IAR and Fedora 10 in embedded Linux system,which contains protocol making,chip configuration and MMI design. The wireless receiving and sending protocol is included connection,build network,data sending between coordinator and device; The chip configuration includes serial of ARM9; The MMI includes the QT design in Linux operating system and API, the receiving data of serial can be shown on monitor display.The experimental results show that:This system can transmit various signal to the monitoring end wireless, the transmiting radius is 30-50 meters. if abnormal conditions is appearing,the device alarms immediately, which affords us great convenience and reliable safety control,the system has certain usability and the reference value. |
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