DYNAMIC METHOD AND DEVICE FOR MEASURING THE LUMINANCE AND BACK-REFLECTION OF ROAD MARKINGS AND SIGNS AND OBTAINING THE SHAPE, POSITION AND DIMENSIONS THEREOF

A dynamic measurement procedure of the luminance and retroreflection of the road markings and signals and obtention of the dimensions of the same from a vehicle that circulates on the road; illuminating the zone of interest; knowing the position of the vehicle; measuring the luminance by means of a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GUTIÉRREZ MÉNDEZ, JOSÉ ANTONIO, MANSILLA GALLO, ALBERTO, REAL CORTÉS, JESÚS ÁNGEL, ORTIZ DE LEJARAZU MACHÍN, DIEGO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS SIGNALLING TESTING TRAFFIC CONTROL SYSTEMS
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Beschreibung
Zusammenfassung:	A dynamic measurement procedure of the luminance and retroreflection of the road markings and signals and obtention of the dimensions of the same from a vehicle that circulates on the road; illuminating the zone of interest; knowing the position of the vehicle; measuring the luminance by means of a light sensor in a single pass, at known distances or intervals; identifying and extracting one or several road markings and signals simultaneously in each measurement of luminance by means of algorithms; referencing the luminance both geometrically and in time, as well as the obtention of the shape, position and dimensions of the same; and the device for carrying out said procedure, which includes a luminous source, a system of global positioning of the vehicle, a light sensor, a camera, a data processor and a data storage device.