Patent ID: 11912282
Assignee: JEONGSEOK CHEMICAL CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC B  E  G | IPC B  E  H

Claim 13:
14. A magnetic field generation method using road-marking paint, comprising:
applying the road-marking paint onto a road so as to indicate a lane line;
generating an alternating magnetic field corresponding to an alternating magnetic pattern to be applied to the lane line based on a rotation angle of a wheel of a construction device that applies the road-marking paint onto the road;
applying the generated alternating magnetic field to the magnetic particles; and
outputting a magnetic field sensed by a vehicle to which a magnetic sensor is attached, in accordance with magnetic particles included in the road-marking paint,
wherein the magnetic particles are configured such that any one of an addition concentration, a magnetization pattern, and a remanent magnetization property is set differently depending on a type of each lane line.