US 2021/0263178 A1 · Portable Detection System Comprising Magnetostatic Sensors

Abstract

The invention relates to a system for detecting (1) a target object, comprising: —a first and a second detector (10, 20) which have magnetic sensors (5) configured to detect a magnetic field and to generate a signal which indicates a magnetic field intensity; —a processing unit (6) configured to receive the signals which indicate an intensity of a magnetic field detected by said sensors (5), and —a communication interface (7) which is configured to transmit the signals generated by the magnetic sensors (5) to the processing unit (6), said processing unit (6) additionally being configured to determine a corrected value of the signals generated by the magnetic sensors (5) of the first and second detectors (10, 20) and, when said corrected value is greater than a predetermined threshold value, to send instructions for generating an alarm.

Claims20

Dependent claims

A detection system comprising:

a first detector comprising a first magnetic sensor configured to generate a first signal, wherein the first signal is representative of an intensity of a detected magnetic field;
a second detector separate from the first detector and comprising a second magnetic sensor configured to generate a second signal, wherein the second signal is representative of an intensity of a detected magnetic field;
a processing unit configured to receive at least one of the first signal and the second signal;
a communication interface configured to transmit at least one of the first signal and the second signal to the processing unit;
wherein the processing unit is configured to determine a corrected value of the first signal and the second signal by applying an attenuation coefficient to the first signal and the second signal and, when said corrected value is greater than a predetermined threshold value, sending instructions to generate an alarm.

2 more elements

A detection method comprising the following steps:

S1:
generating with, a first signal with a first magnetic sensor of a first detector and a second signal with a second magnetic sensor of a second detector, wherein the first signal and the second signal are each representative of an intensity of a magnetic field,
S3:
applying an attenuation coefficient to the first signal and the second signal to obtain a corrected values;
S4:
comparing the corrected value with a predetermined threshold value;
and
S5:
when a corrected value is greater than the predetermined threshold value, sending instructions to generate an alarm.

6 more elements

Dependencies are inferred from the claim text.

Portable Detection System Comprising Magnetostatic Sensors

Life of this patent

Portable Detection System Comprising Magnetostatic Sensors

Life of this patent

Abstract

Claims20