System and method for the magnetic detection of the presence of objects in a blind angle of an automobile vehicle
First Claim
1. A system for the detection of the presence of objects in a blind angle of an automobile vehicle, installed in an automobile vehicle and comprising:
- first means of detection of distortion of the earth'"'"'s magnetic field caused by the entry of an object, containing at least one ferromagnetic material piece, in a zone of said blind angle covered by said first means of detection that supplies electric signals, on the basis of the strength of said magnetic field, to an electronic circuit with a digitizing stage for said signals,a second stage that analyses the signals obtained after said digitizing;
a first stage that generates variable output signals based on said analysis; and
second means of detection for possible magnetic distortion generated from a trajectory of said automobile vehicle, associated with said electronic circuit and intended to neutralize an influence of said possible magnetic distortion on the detection of said first means.
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Accused Products
Abstract
A system and method for the magnetic detection of the presence of objects in a blind angle of an automobile vehicle is disclosed. The system includes a first detector of distortion of the earth'"'"'s magnetic field caused by the entry of a ferromagnetic object into a blind angle, a second, a third and possibly a fourth detector of magnetic distortion deriving from the vehicle'"'"'s trajectory, inclination and/or vibration and magnetic fields generated inside the actual vehicle, respectively, all associated with an electronic circuit. The method includes employing the proposed system to, through the generation of a table relating trajectory, inclination and/or vibrations or magnetic fields generated inside the vehicle with a corresponding distortion of the magnetic filed due to the specific circumstances, neutralize the effects of the possible magnetic distortion on the detection of the object.
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Citations
18 Claims
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1. A system for the detection of the presence of objects in a blind angle of an automobile vehicle, installed in an automobile vehicle and comprising:
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first means of detection of distortion of the earth'"'"'s magnetic field caused by the entry of an object, containing at least one ferromagnetic material piece, in a zone of said blind angle covered by said first means of detection that supplies electric signals, on the basis of the strength of said magnetic field, to an electronic circuit with a digitizing stage for said signals, a second stage that analyses the signals obtained after said digitizing; a first stage that generates variable output signals based on said analysis; and second means of detection for possible magnetic distortion generated from a trajectory of said automobile vehicle, associated with said electronic circuit and intended to neutralize an influence of said possible magnetic distortion on the detection of said first means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 17, 18)
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12. A method of detection of the presence of objects in a blind angle of an automobile vehicle based on the use of first means of detection of distortion in the earth'"'"'s magnetic field caused by the entry of an object, which contains at least one ferromagnetic material, in a zone of said blind angle covered by said first means of detection and an electronic system, comprising:
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carrying out the detection of the entry of said object into said zone of said blind angle, obtaining signals that represent said detection, processing and analyzing of said signals, generating of some variable output signals based on said analysis, carrying out, by means of said electronic system and at least some second means of detection, the detection of possible magnetic distortion deriving from a trajectory of said automobile vehicle, and processing and analyzing of signals that are representative of said possible magnetic distortion deriving from the automobile vehicle'"'"'s trajectory, in order to neutralize its effect on the detection obtained by the first means of detections. - View Dependent Claims (13, 14, 15, 16)
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Specification