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 pavement marking material comprising a magnetic marker that includes a magnet component configured to generate a magnetic field on a road surface, 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, wherein the magnetic marker is detectable by a vehicle that has a magnetic sensor adapted to detect a magnetic signal, said magnetic sensor being positioned on the vehicle to detect magnetic fields from said magnetic marker when positioned on said road surface;
- said pavement marking material including 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 adapted to obtain data through wireless communications, and wherein the RFID tag is mounted on or within the pavement marking material.
A driving assistance system, comprising:
- a pavement marking material comprising a magnetic marker that includes a magnet component configured to generate a magnetic field on a road surface, said magnet component being 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;
- said pavement marking material including 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, said RFID tag mounted on or within a body of the pavement marking material;
- wherein a magnetic field of said magnetic marker, measured at 12 inches, is greater than at least 2 gauss;
- and wherein said pavement marking material is adapted to reflect at least two of the following signals:
- visible light, laser from a lidar;
- and a radar signal.
A driving assistance system, comprising:
- a pavement marking material that includes a magnet component configured to generate a magnetic field on a road surface, said magnetic marker comprising a magnetic tape or magnetic sheet, and 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 magnetic field of said magnetic marker, measured at 12 inches, is greater than at least 2 gauss;
- and wherein said pavement marking material is adapted to reflect at least two of the following signals:
- visible light, laser from a lidar;
- and a radar signal, 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.