Large scale active rfid system utilizing zigbee networks

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Large scale active rfid system utilizing zigbee networks

  1. 1. LARGE SCALE ACTIVE RFID SYSTEM UTILIZING ZIGBEE NETWORKS Introduction: RFID is high-technology automatic identification based on wireless networks and enable noncontact identification; however, they cannot be applied beyond their radio communication range. Considering this, the present paper proposes a large scale active RFID system utilizing Zigbee networks in order to extend a reader’s radio coverage. Existing System: Zigbee wireless technology is having limitation of distance while wireless communication takes place to transfer the data like RFID number, sensor value, etc. Hence we cannot be applied beyond their radio communication range. Hence we propose this system. Proposed system: The system consists of a master RFID reader, intermediate node (IN), collection node (CN), and RFID tags. In general, the reader acts as a traditional RFID reader and communicates with devices on Zigbee networks. Intermediate Nodes (INs) for transferring messages or commands from the reader or the CN can include a general Zigbee device, a sensor node, or a Collection node (CN). The collection node can communicate with other Zigbee devices and acts as a remote RFID reader. The RFID reader is attached with 8051 microcontroller with serial communication in main node. The RFID reader is used the RFID tag information and fed to microcontroller using UART. The microcontroller transfers the data to intermediate node using zigbee wireless protocol. The intermediate node receives the information sent by main node and strength the signal and it will send the data to the collection node. The collection node consist of zigbee with PC, and the information are stored in pc the zigbee wireless protocol and RS232 protocol, then the information is collected using .NET application.
  2. 2. Block Diagram: Main Node: RFID Tag’s Power supply RFID Reader AT89C51 MAX232 Microcontroller Intermediate Node:
  3. 3. Power supply AT89C51 Microcontroller Collection Node: Power supply Max232 Hardware Requirements: 1. 8051 Microcontroller. 2. RFID reader and tag PC
  4. 4. 3. Zigbee module. 4. MAX 232. 5. PC Software Requirements: 1. Embedded C 2. Keil Compiler 3. VB .NET

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