“芝麻开门”智能锁设计

"Open, sesame" —Design of intelligent lock

设计的"芝麻开门"智能锁,是基于HT66FU50单片机控制步进电机的智能解锁装置.该设计近程解锁采用语音识别模块,将语音信息输入到主控芯片比对分析,正确则启动步进电机解锁,并辅以面部识别提高识别正确率.远程解锁是通过判断GSM接收到的短信与预定短信是否一致,一致则启动解锁,如短信错误或强加外力则发报警短信.本设计的优势在于成本低、实用性强、灵活的外围功能的扩展电路.

An intelligent lock named ＂open, sesame＂ is designed. This device was based on GTM 900 single chip microcomputer to unlock intelligently by controlling stepper motor. Short-range unlocking adopts voice recognition module to transmit voice information for main chip, if correct then to control stepper motor to unlock, and face recognition assists in improving recognition accuracy. Long-range unlocking is to judge received message by GSM module with scheduled message： if uniform then to unlock, if wrong or imposed by force then to send alarm message. The device has such advantages of low cost, high practicability and flexible expansion of the circuit.