基于AS602的智能指纹锁系统设计与实现

针对市场上指纹锁存在着价格高、功耗高等问题，设计了一种低成本、低功耗的智能指纹锁系统。STC12LE5A60S2作为核心处理器，对各模块进行控制。选用AS602作为指纹处理器，FPC1011F作为指纹采集器。从软硬件方面进行了低功耗设计，对密码进行TEA加密设置。采用了有限状态机模型来进行软件设计，避免了大量标志位与多层判断的问题。最后，对整个系统进行了综合测试，结果表明，本智能指纹锁系统运行稳定，安全可靠，指纹识别率高、识别速度快。

The Design and Implementation of a Fingerprint Lock Based on AS602

Due to the high power consumption and high price of fingerprint lock on the market, the design of fingerprint lock has the advantage of low cost, low power consumption. STC12LE5A60S2 is chosen as microprocessor to control different modules. AS602 is chosen to identify fingerprint, which controls the fingerprint sensor FPC1011F. The design of low power consumption consists of two parts: one is low power design of hardware and the other one is low power design of software. TEA is used to encrypt the passwords. Finite state machine is used in programming to reduce the judgment step and time. According to the results of the tests, the system is stable, safe and has reliable fingerprint identification rate, high recognition speed, low power consumption.