Rfid Based Attendance System
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Radio Frequency Identification (RFID) Card Readers provide a low-cost solution to read passive RFID transponder tags up to 2 inches away. The RFID Card Readers can be used in a wide variety of hobbyist and commercial applications, including access control, automatic identification, robotics navigation, inventory tracking, payment systems, and car immobilization. The RFID card reader read the RFID tag in range and outputs unique identification code of the tag at baud rate of 9600. The data from RFID reader can be interfaced to be read by microcontroller or PC. The project is designed in such a way that the controller will be interfaced to the RFID reader through a line driver IC max232 for serial communication. On the other hand, the controller will also be interfaced to the PC serially. Serial communication is often used either to control or to receive data from an embedded microprocessor. Serial communication is a form of I/O in which the bits of a byte being transferred appear one after the other in a timed sequence on a single wire. Each student will be issued with a unique RFID card. Whenever an RFID card is swiped over the reader, it gets the card information and sends to the microcontroller serially. So the controller receives the data and transmits it to the PC, as per the code logic. C# application in PC always interacts with serial port and it maintains the data base along with corresponding card details. So based on the received data the application can update the employee/student log. As per the design of the application, we can check the student logs on the required dates at any time. In this project 7805 is a regulator and it avoids noise spikes in power supply. RFID modem is connected microcontroller through serial port. These RFID modem works under 9600 or 4800 baud rates. Micro Controller : AT89S52 Crystal : 11.0592 MHz Lcd : HD44780 Led : 5mm Red LED Rfid Reader Max232 Software Requirements Keil Proteus Uc Flash Embedded C Prog Isp
Rfid Label
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We are offering rfid label. Uhf rfid 4x4 inch lables alien aln-9640-fwrc tags (squiggle inlay, higgs3, fc, clear). Label paper material � pure white ( capable of sticking onto cartons) paper thickness � 70-80 gsm release paper thickness � 65 gsm adhesive � will stick to cartons with shelf life of 1 year.
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Rfid Reader with Active Tags
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10 Piece(s) (MOQ)
we are offering rfid reader with active tags.gae - has newly developed a 2.4ghz rfid active reader & to meet different needs with 2.4ghz active tags in vehicle access control, vehicle toll collection, healthcare, rfid asset tracking, manufacturing, personnel tracking and building security and access control applications. With an external omni-directional antenna, this 2.4ghz reader is suitable for a number of rtls (real time location system) applications including asset tracking, warehouse management, logistics, and student management and so on. This 2.4ghz rfid reader can ensure whether the tracking products are in the visibility range of around 30 meters from the reader or not, since it has the ability of identifying a number of active tags within 30 meters simultaneously. And by working with an omni-directional antenna, it can identify tags in all directions, thus providing a high working accuracy. Active rfid tags have their own internal power source, which is used to power the integrated circuits and broadcast the signal to the reader. If the reader has received the signal from tag, the reader will send the data to the server computer to locate each of the tags. Moreover, it also provides rs232 & rs485 ports for data communication. The rf tag uses the ieee 802.15.4 standard protocol which makes the tag to function as a rfd (reduced functionality device) associating to a coordinator (fully functional devicereader), periodically waking up transmitting data and sleeping again, in the same personal area network. In all, this active rfid reader is available in operating from ism 2.4ghz to 2.5ghz to be deployed in any indoor or outdoor environments for various rtls applications. And it can offer an impressive long read range of up to 30 meters by integrating with an external antenna.
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