Mikroprocesorově řízený zabezpečovací senzor pracující na principu vyhodnocování slabých magnetických polí

Abstract

The work implementing design of the equipment (hardware and software) microprocessor-based magnetic sensor for security application operating on the principle of evaluation of weak magnetic fields. For measurement of magnetic field, which varies depending on the manipulation window was selected high sensitive magnetometer. The values of the magnetic field in all three axes are cyclically measured by the magnetometer, converted into digital form and then transmitted, for processing to microprocessor PIC16 . The user interface is implemented using touch switches with acoustic output directly on the device. Security sensor is powered by a single 1.5V battery. For the purposes of calibration and sensor diagnostics is equipped with a serial communication interface with implemented communications protocol. Create a software application in the microprocessor ensures operation of the equipment, operation magnetometer and communication with PC.