Apparatus for detecting road surface condition

An apparatus for detecting road surface condition, which is installed in a vehicle, of a road on which the vehicle is driving, comprising:

• a first measuring instrument placed on a tire of a right wheel of the vehicle;
• a second measuring instrument placed on a tire of a left wheel of the vehicle;
• and
• a receiver placed in the vehicle,
• wherein the first measuring instrument comprises:
• a first acceleration sensor for measuring vibration of the tire of the right wheel to generate first vibration data;
• a first measuring instrument controller for processing the first vibration data to generate first roughness information for the road surface;
• and
• a first measuring instrument communicator configured to transmit the first roughness information to the receiver,
• wherein the second measuring instrument comprises:
• a second acceleration sensor for measuring vibration of the tire of the left wheel to generate second vibration data;
• a second measuring instrument controller for processing the second vibration data to generate second roughness information for the road surface;
• and
• a second measuring instrument communicator configured to transmit the second roughness information to the receiver, and
• wherein the receiver comprises:
• an in-vehicle communicator configured to receive the first roughness information and the second roughness information;
• a receiver controller configured to process the first roughness information and the second roughness information to generate final roughness information;
• and
• an external communicator configured to transmit the final roughness information to the outside,
• wherein the first measuring instrument further comprises a first geomagnetic sensor for generating first geomagnetic data by measuring geomagnetism of the ground traveling by the tire of the right wheel, and
• wherein the second measuring instrument further comprises a second geomagnetic sensor for generating second geomagnetic data by measuring geomagnetism of the ground traveling by the tire of the left wheel.