System and method for the magnetic detection of the presence of objects in a blind angle of an automobile vehicle
US7489234B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2003 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Mar 7, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/167
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.