基于多协议的无线指纹签到系统设计

Design of Wireless Fingerprint Sign in System Based on Multi Protocol

本文以多协议平台的指纹签到系统为设计对象,通过对高精度光学传感器采集的原始数据利用商用指纹算法处理得到一段经过测试的识别信息,由UART接口和通讯协议的智能型模块将识别信息送无线WIFI+蓝牙2合1功能的双核ESP32核心板。经过多次调测识别算法,完成多次收发试验,该系统可以与上位机有效稳定地传输指纹识别信息。

This paper takes the fingerprint sign in system of multi protocol platform as the design object, by using the commercial fingerprint algorithm to process the original data collected by the high-precision optical sensor, a section of tested identification information is obtained, the smart module of UART interface and communication protocol will send the identification information to the dual core esp32 core board with wireless WiFi+ Bluetooth 2-in-1 function. After many times of debugging and identification algorithm, complete multiple receiving and dispatching tests, the system can effectively and stably transmit fingerprint identification information with upper computer.