Driving assistance method and system
OwnerJoseph E. Kovarik, James J. Kovarikinventors
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Abstract
A driving assistance system and method is provided that includes a plurality of magnetic markers having a magnet component configured to generate a magnetic field on a road surface, together with a pavement marking material that includes a RFID tag that is readable by a RFID tag reader. The pavement marking material includes encoded information that is conveyed to a vehicle's on-board sensing system that is adapted to obtain data through wireless communications. The magnetic markers are conformable, polymeric materials having viscoelastic properties such that vehicles having magnetic sensors can detect magnetic fields from the magnetic markers when positioned on a road surface.
Claims20
A driving assistance system, comprising:
- a plurality of magnetic markers that each include a magnet component configured to generate a magnetic field on a road surface, said magnetic markers comprising a magnetic tape or magnetic sheet, and wherein the magnet component is one of a conformable and a non-conformable magnet selected from the group consisting of polymeric magnets, ceramic magnets, metal magnets and metal alloy magnets;
- and
- a pavement marking material that includes a RFID tag that is readable by a RFID tag reader, said pavement marking material including encoded information that includes one or more bits of information able to be conveyed to a vehicle's on-board sensing system comprising a sensor system adapted to obtain data through wireless communications, and wherein the RFID tag is mounted on or within a body of the pavement marking material.
A driving assistance system, comprising:
- a plurality of magnetic markers that each include a magnet component configured to generate a magnetic field on a road surface, said magnetic markers comprising a magnetic tape or magnetic sheet, and wherein the magnet component is one of a conformable and a non-conformable magnet selected from the group consisting of polymeric magnets, ceramic magnets, metal magnets and metal alloy magnets;
- a pavement marking material that includes a RFID tag that is readable by a RFID tag reader, said pavement marking material including encoded information that includes one or more bits of information able to be conveyed to a vehicle's on-board sensing system comprising a sensor system adapted to obtain data through wireless communications, and wherein the RFID tag is mounted on or within a body of the pavement marking material;
- wherein a rare earth magnet is embedded in said pavement marking material;
- wherein a magnetic field of said plurality of magnetic markers, measured at 12 inches, is greater than at least 2 gauss;
- and wherein the magnet component is disposed in the plurality of magnetic markers, said plurality of magnetic markers being arranged in an array in which a gap of predetermined distance is maintained.
A driving assistance system, comprising:
- a plurality of magnetic markers that each include a magnet component configured to generate a magnetic field on a road surface, said magnetic markers comprising a magnetic tape or magnetic sheet, and wherein the magnet component is one of a conformable and a non-conformable magnet selected from the group consisting of polymeric magnets, ceramic magnets, metal magnets and metal alloy magnets;
- a pavement marking material that includes a RFID tag that is readable by a RFID tag reader, said pavement marking material including encoded information that includes one or more bits of information able to be conveyed to a vehicle's on-board sensing system comprising a sensor system adapted to obtain data through wireless communications, and wherein the RFID tag is mounted on or within a body of the pavement marking material;
- wherein the magnetic component comprises magnetic particles embedded in a conformable magnetic layer selected from the group consisting of paint and a polymeric composite stripe adherable to the road surface;
- and wherein said system enables accurate lane marking recognition despite weather conditions where the road is covered by snow.
Dependencies are inferred from the claim text.