BURGLAR ALARM USING MAGNETIC INDUCTION METHOD

摘要

PURPOSE: A burglar alarm using magnetic induction method is provided to cut down expenses without using a high frequency and wirelessly supply a power. CONSTITUTION: A modulator/demodulator(2) modulates a transmission request data of tag set(B). A power source from a power supply(4) is induced at a magnetic inducing coil(1). A magnetic induced by the magnetic inducing coil(6) of the tag set(B) is supplied to a power source circuit(7). The power source is used operation power source. The magnetic induced by the magnetic inducing coil(6) is demodulated through a modulator/demodulator(9). A microprocessor(8) analyzes a demodulated data by the modulator/demodulator(9). The modulator/demodulator(9) modulates the analyzed data by the microprocessor(8).