Phone Alarm Device Design Based On Scene Information

At present, all kinds of functions of the household anti-theft warning system are more and more perfect in the fixed place, but personal alertor outside for self-defense is seldom . When people alone outside encounter danger or some unexpected events, one alarm device may not only alarm for help to their relatives and friends or the relevant departments in time ,but also collect information and preserve it, so as to provide accurate information to take effective measure for some concerend personnel and provide evidence to investigate who shall answer for the consequence.One mobile phone alarm device basing on scene information is designs in the paper ,which may collect scene information (characters information, a event information, time information) of some special circumstances by the camera of the mobile phone and send it through the MMS to relevant departments or personnel to alarm .This paper adopts Nokia FP1 type (the mobile phone Symbian OS), and develops and designs on S60 development platform .Hardware modules depends on the phone camera module to take pictures and the GPRS communication module to send MMS. In the mobile phone camera module, the camera need to adopt the 135 degrees wide-angle lens to increase the vision scope of the pictures in a near distance; In order to enhance radial brightness while the mobile phone camera is taking pictures, the mobile phone camera will add the low-pressure flash circuit ,and the mobile phone camera shortcut key will be the key to open or close the flash circuit. When the camera shortcut key is posed the flashes are working to strengthen clarity for taking pictures. Software system based on the s60 development platform adopts the carbide .c++ as the development language of the program that after the camera shortcut key is posed the mobile phone keyboard is unlocked and the JAVA program is called, and on WTK platform the JAVA program (the program is that the mobile phone takes pictures and sends MMS pictures to the designated phone) is developed, to realize the function once the mobile phone shortcut key is posed the mobile phone keyboard is unlocks and the mobile phone calls the program the mobile phone takes pictures and sends MMS to the designated phone. In the whole process once the mobile phone holders only needs to press the shortcut key, then mobile phone keyboard is unlocked, the lights are flashing, and the pictures are sent to the default mobile phone number by MMS, to realize the scene information (characters information, event information),and time information which are collected ,saved , transmitted , also timely provide accurate information and alarm to obtain effective help from the relevant friends or the relevant departments .