基于DSP指纹锁低功耗设计

Design of low power consumption fingerprint lock based on DSP

研究了基于嵌入式DSP指纹锁的低功耗的设计方法。针对脱机指纹锁的特点,在硬件设计方面,考虑系统整体低功耗实现方法;在图像传感器上,对采集头采取非典型节省功耗设计;在核心处理器和底层控制器上,软硬件结合优化设计。本文选择性价比高、功耗低的元器件,并在软件设计上作出优化,降低了系统的整体功耗,实现脱机指纹锁的低功耗特点。

The paper focuses on the design method based on the low power consumption of the embedded DSP fingerprint lock. Considering the features of the off-line fingerprint lock, the paper discusses the realization of the overall low power consumption of the system in the hardware design, adopts the non-traditional saving power design of the collector head in the photo sensor and combines the optimal designs of the hardware and the software in the core processor and the bottom controller. The paper realizes the low power consumption of the off-line fingerprint lock by choosing the cost-effective and low power consumption components, optimizing the software design and reducing the overall power consumption of the system.