Abstract
"Attendance Management System" is based on RFID radio frequency
identification card information carrier for business or school attendance
management system. The system can use one unit to get rid of cumbersome,
inefficient attendance patterns. Identification work from the environment, easy to
operate, with a stain resistant, waterproof, encrypted storage and so on. Combined
with network communication technology and single-chip technology, the
enterprises and units of automatic attendance and attendance data analysis and
processing, saving time and attendance time, improve efficiency and increase
attendance attendance accuracy, promote the enterprise information management
units attendance level of development.
We use the hardware part of the Swiss micro-electric production constituted
EM4095 RF reader circuitry. The chip has a low cost, stable, accurate sampling
points, and so on. Microcontroller with 51 series. Way with the microcontroller
through the CAN bus communicate with each other. Reader circuit output signals
using microcontroller microcontroller identifies the card number between 232 and
PC communication, real-time upload data transfer to a PC for processing. The main
achievement of functional testing PC card data.
We use the hardware part of the Swiss micro-electric production constituted
EM4095 RF reader circuitry. The chip has a low cost, stable, accurate sampling
points, and so on. SCM Series 51 AT89C52.
Software part is divided into reader identification, CAN communication,
AT89C52 microcontroller and PC communication, alarm, PC side detection
processing.
This design uses a microcontroller development environment: AVR
development environment for CodeVisionAVR C Compiler, AT89C52
development environment for the Keil uVision2.
Keywords: Attendance Management System; RF Technology; SCM; CAN
Communication; 232; SPI Communication.
