Design And Reserch Of Smart Security System Based On Embedded System

Home safety is not only the foundation for us to live and work in peace, but alsoan important link of building the harmonious society. With the rapid development ofthe computer, communication and microelectronics technology and the improvementof people’s living standard, people ask for higher requirements of living environmentfor the safety and manageability. As we know, much of the system’s communicationof traditional security systems use cable connections, which has a lot of disadvantages,such as complex to corrosion and not easy maintenance.At present, the rapid development of the mobile communication technology andincreasingly mature wireless sensor network technology were widely applied, whichprovide a powerful technical support for a new generation of security system. Mostcurrent application did not combine wireless sensor and a wireless network well,which used in the security system is preliminary, and it did not achieve intelligentmonitoring and control. Therefore, the system combines two wireless technology: thecommunication of terminals and control center adopts NRF24L01module; thecommunication of control centrol and remote user adopts wireless mobile technology.The system has higer flexibility and manageability.This paper proposes a kind of smart security system which based on the wirelesssensor network,GPRS wireless mobile network and the Internet, takes ARM for serverand PC or smart phones for client. The system uses mixed C/S and B/S systemstructure. This systemuses S3C2440micro processing chip, SIM300communicationmodule,USB camera module and Linux operating system.The system can be used tocontrol by PC and mobile phone. When the user is at room, the user can control therunning of the whole system by PC.When the user is outside, the user can realize realtime observation by mobile phone.When the indoor environment is abnormal, thesystem will automatically SMS alarm procedures, to tell the user that the home isabnormal. At the end, the system can achieve real intelligent security.