Theft-prevention system and method with magnetic field detection

US10950101B2 · kind B2 · utility

Assignee

• Alert Systems ApS · DK

Inventors

• Verner Falkenberg · Copenhagen, DK
• Dennis Pedersen · Aarhus, DK

Key dates

• Filing date: Oct 5, 2018
• Grant date: Mar 16, 2021
• Expiry date: Oct 5, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G08B29/185
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An electronic theft-alerting system, including magnetometers, such as multiaxis magnetometers, arranged in respective stations and configured to output respective vector signals representing movement of respective magnetic field vectors; and a signal processor coupled to receive the first and second vector signals, and configured to detect a corresponding movement of a first magnetic field vector and a second magnetic field vector. Detecting commencement and continuance of fluctuation the first magnetic field vector, determining whether to raise or forgo to raise an alarm that warns about a possible theft-related event in response to the determining of commencement and continuance of fluctuation of the first magnetic field vector or the second magnetic field vector.