Diseño e implementación de un sistema biométrico de transmisión inalámbrica para el reconocimiento de personas a través de su historial médico en el Hospital Regional Docente Ambato.

Abstract

An embedded system was developed, which structure is based on an Arduino board Mega2560 that together with a biometric sensor, a nextion board and a wireless module GSM, constitute a biometric system of wireless transmission that has the capacity of identifying people through their fingerprints. This system captures the image of a person´s fingerprints through a biometric sensor, digitalizes the information and generates a template with its features. Additionally, it allows introducing ID numbers to be sent wirelessly to its base station. The receptor equipment using module SIM800L captures the information and transfers to another computer so the system identifies who this data belongs to. The designed interface reads each image or ID number of the database to compare them with the information received by the terminal equipment, it executes a procedure to improve the image and extracts its features, while it also makes SQL queries, the latter with the aim of identifying the person whom the information sent by the terminal belongs to. The stored features are compared to the template sent by the terminal equipment; stablishing at least fifteen minutiae to be recognised as that of the same image. Finally, the system activatesa search within the database for the information associated to the image and send it back to the terminal equipment wirelessly, in order to be displayed on the screen so people are identified by their fingerprints.