COMMUNICATION SYSTEM HAVING PROXIMITY DETECTOR OF FERROUS MATERIALS

摘要

A metal detection system for a portable radio is provided. The metal detection system comprises a magnet coupled to a substrate, such as a belt, the magnet generating a magnetic field. The system further comprises a magnetometer coupled to the substrate, the magnetometer measuring changes in the magnet's magnetic field strength indicative of metal accessories being within a predetermined proximity of the magnet. The removal of accessories, such as law enforcement accessories (for example handcuffs) can be detected. The portable radio detects changes to the magnetic field in response to changes in location of the metal accessories. The portable radio can transmit a signal in response to accessories being removed from the substrate.

主权项

1. A metal detection system, comprising:
a magnet coupled to a substrate, the magnet generating a magnetic field having a predetermined magnetic field strength; a magnetometer coupled to the substrate, the magnetometer measuring changes in the magnet's predetermined magnetic field strength indicative of metal being brought within a predetermined proximity of the magnet.