Design Of Intelligent Household Security And Alarm System Based On ARM9

With the rapid development of national economy and the improvement of livingstandards, people play more and more attention to the pursuit of safety and reliability of thehousehold life. At present, household burglar alarm systems on the market have many hiddentrouble and shortcomings, and they are too expensive, so they are far from people’sexpectations. Based on this, the design of household burglar alarm system based on ARM9isproposed, the system has a low cost, high performance and convenient for operation, etc. Themain work of the design includes:Firstly, combined with the current situation of domestic security alarm system, this paperputs forward a plan to a burglar alarm based on ARM9and Linux operating system as the core.It builds the hardware platform for the system, and designs the hardware circuit diagram ofthe connection between the various components and microprocessor, such as: the design ofeach sensor’s detection circuit, the design of GSM module’s and buzzer’s alarm circuit, etc. Inorder to support the normal operation of the hardware platform, so it needs to create the Linuxsoftware operating platform.Secondly, carrying on the software design for system, in other word, it needs to writedriver code for each module, this is the key part of the design. First, writing a driver code foralarm detection module, which realized detection function of the fingerprint sensor,temperature sensor and infrared sensor; Second, writing a driver code for alarm module,which realized alarm function of the buzzer and GSM module; Finally, writing a driver codefor monitoring module achieves the function of CMOS camera to capture video.Thirdly, in order to realize the remote monitoring, it focuses on the process of the Boaserver’s configuration and transplantation and technology of video transmission with MJPG-streamer. The video transmission with MJPG-streamer is a novel method, comparedwith the traditional technology, it reduces the memory of the CPU usage rate, shortens thetime of processing of video data and improves the speed transmission of video data.Finally, after tested, scheme which was proposed in this topic basically realized thefunction of presupposition.