DOOR ACCESS CONTROL SYSTEM USING PALM VEIN RECOGNITION

摘要

A door access control system using palm vein recognition, comprising a power supply, a power supply driving circuit, a palm vein acquisition circuit, an SD card, an SD card interface circuit, an ARM processor above Cortex A8, an LCD display circuit, an LCD display screen, an audio output circuit, a speaker, an RS232/485 communication conversion circuit, and a door access controller; the power supply is connected to the ARM processor above Cortex A8 by means of the power supply driving circuit, the palm vein acquisition circuit is connected to the ARM processor above Cortex A8, and the SD card is connected to the ARM processor above Cortex A8 by means of the SD card interface circuit; the ARM processor above Cortex A8 transmits intercom visual information to the LCD display screen by means of the LCD display circuit, an audio prompt is disseminated by means of the speaker by means of the audio output circuit, and the ARM processor above Cortex A8 controls palm vein recognition and logic communication between circuits; the ARM processor above Cortex A8 is equipped with a near-infrared LED camera for performing palm vein image extraction and digital processing on visitors.