Employee monitoring & HR management using RFID

RFID is a term which designates a system where people or objects transmit their identification over radio frequencies. In earlier technologies, the labels or tags had to be scanned manually to capture the identity of the person/object. RFID, however, doesn't require manual scanning. An RFID system is generally made up of several readers with antennas which emit radio signals and capture back the signals emitted by tag. The context of our employee tracking application is we will provide each employee with RFID tag which correlates with two or more RFID reader which is placed inside the campus/office premises. The tag is activated with RF energy from the antennas that are placed in the chair of employees and it extracts information from the tag. Each tag has a unique ID. RFID reader converts the radio waves returned from the tag into a form that can be passed on to the controller. The data is updated at regular intervals in the host computer using wireless zigbee protocol (802.15.4). The delay is programmed using microcontroller. The performance of each employee is determined with the help of application software Visual Basic.