PROBLEM TO BE SOLVED: To provide a magnetic marker with suppressed magnetic force and a magnetic marker detection system.SOLUTION: A magnetic marker detection system 1S detects magnetism generated by a magnetic marker 1 installed on a road surface 53 by a magnetic sensor 2 attached to a vehicle body floor 50 of a vehicle 5. The magnetic marker detection system 1S is a system combining: a magnetic marker 1 having a magnetic arrival rate Gh/Gs of 0.5% or more which is a rate of a magnetic flux density Gh at a position at height of 250 mm to magnetic flux density Gs at a surface; and a magnetic sensor 2 using a magneto-impedance element including a magneto-sensitive body in which impedance changes according to an external magnetic field.SELECTED DRAWING: Figure 1
磁気マーカ及び磁気マーカ検出システム
2020-07-22
Patent
Elektronische Ressource
Japanisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / E01F ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE , Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl. / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |