Research On Security And Defense System Based On GSM

A security and defense system based on GSM is described in this paper. This system consists of main control system (MCU), sensors (vibration sensor, angle sensor, acceleration sensor, force sensor, voice sensor and image sensor), actuator, power module, GSM module, computer interface module and so on.With the development of people's living standard and technology, more and more electrical home appliances and luxury goods have entered people's life, but the following one makes the safe precaution of home become the headache besides facilitating people's life. And the robber's means of stealing is more and more sophisticated. All all these is it appear one intellectual security and defense system, can is it take precautions against various kinds of potential safety hazards of house to control already to call, can play very good theft-proof function too.A security and defense system based on GSM has been developed just for the purpose mentioned above. This system mainly utilizes various kinds of sensors gathering local signals that include status information of operation of different equipment, environmental information, sound and image information. Through certain decision algorithm, the microcontroller manages and picks up the useful part among the information that has been gathered by sensors, then determine whether it should send warning message or carry out defence action. Warning message will be sent to users' phones in short message, voice call or other forms by GSM module. In this way users can acquire various kinds of local information in time. Users can also visit local equipment status informations or control it to carry out defence actions by the order set beforehand in short message. Thus a kind of bidirectional security and defense system syncretizing initiativeness and passiveness has been realized. In addition, parameters of the system may be set by short message and application software through USB interface.Security and defense system based on GSM in this paper is advanced, flexible, expansile, easy to use, and can offer a set of feasible reference for the design of such security and defense system as the house, vehicle, etc.