The Design Of Network Alarm System Based On RFID

In recent years, Chinese economy develops faster and faster; People’s living standards have been greatly improved,the security demand increases gradually. Information Technology develops very fast and this accelerates the pace of the intelligent security industry. Intelligent alarm system appears.After the analysis of the current alarm system, we find that the popular alarm system use sensors widely. Seldom researches have been done on the integration of Radio Frequency Identification technique, sensor technology and network technology. In this case, we used Radio Frequency Identification technique, sensor technique and network technology in our alarm system. And this greatly enriched the alarm system.The alarm system design is based on the demand of banks, and the alarm system both has fire resistance and theft-proof function. The system is divided into two parts, one for the PC software platform part, the other part is the hardware platform. Software systems and hardware platforms are connected through a network module W5100. Hardware platform consists of a network module, RFID detection module, single-chip processing module and sensor detection module. When the system works, the sensor carries on the front-end information collection. And then passes the information to the master chip microcontroller STC12C5A60S2. When the RFID detection module works, it passes the RFID card information to the microcontroller, the microcontroller deals with the information and then passed it to the software platform through the network module W5100. Software platform will determine whether the card has been authorized, if not authorized, the alarm signal to the alarm location and positioning, to remind staff on duty for emergency treatment.This paper conduct the alarm system software platform concept design, logical structure design and preliminary realize the functions of the system. This paper focus on the hardware board design, designed circuit schematics and made the PCB board. In the design process,taking into account various factors, therefore, the alarm system has a strong practical value.At the end of this paper, the function of the alarm system has been tested.This alarm system could identify the people who come into the area with a RFID card.The traditional alarms do not have this function. It would not alarm when the alarm couldidentify the card. This alarm system add identity function to the former system, and this has great significant for the bank and other important places.