| 摘要 |
PURPOSE: A method and device for detecting a position of a target object using a magnetic field sensor, and a recording medium thereof are provided to reduce an error by null adjustment and to improve the accuracy on searching a target object using ultrasonic wave or RFID signal. CONSTITUTION: A device for detecting a position of a target object using a magnetic field sensor comprises a magnetic field sensor(210), a memory unit(230), a target inquiry control unit(220) and a null adjustment unit(240). The magnetic field sensor measures the direction and intensity of magnetic field, which a source electromagnet attached to the target object, generates. The memory unit stores a reference location. The target inquiry control unit calculates the current coordinate of a target object using a re-constituted flux-line and reference location. The null adjustment unit comprises a tag reader which reads the coordinate information saved in an RFID tag and uses as the reference location.
|
