多模式电子锁控制器设计

Design of Multi-Mode Electronic Lock Controller

传统机械锁具及密码锁具逐渐被更安全便捷的指纹、虹膜识别电子锁具所代替,但是任何单一的电子锁都存在较大的风险。提出了一种多模式认证的电子锁控制系统,介绍了指纹识别工作原理及算法,结合实际产品中的需求,设计系统总体框图及硬件电路,采用STM32F401作为微处理器,FPS200作为指纹图像传感器.重点分析了软件系统的工作流程以及指纹图像采集、指纹识别算法、密码认证等软件流程.通过设计系统软硬件综合测试,结果表明文中设计的指纹识别系统具有很高的指纹识别准确度.

Traditional mechanical locks and electronic password-lock are gradually replaced by more secure and convenient fingerprint and iris recognition electronic locks.However,any single electronic locks has greater risks.A multi-mode authentication electronic lock control system is proposed.A multi-mode authentication electronic lock control system is put forth.The working principle and algorithm for fingerprint identification are introduced.In combination with the real needs,the system overall block diagram and hardware circuit are designed,adopting STM32 F401 as the micro-processor and FPS200 as the fingerprint image sensor.In particular,an in-depth analysis is done of the work flow chart of the software system,the fingerprint image acquisition,fingerprint identification algorithm and pass-word authentication.A comprehensive test of the software and hardware system finds that the new fingerprint identification system has a very high degree of fingerprint identification accuracy.