This paper presents a concept for a measurement set designed to record road images using vehicle positioning based on GPS-INS-RTK technology. A set of “megapixel” cameras was used in the measurement kit for image registration.
To determine the vehicle’s position, a SPAN measurement kit from Novatel was used, consisting of a GPS receiver, an inertial unit, and a radio modem enabling the entire system to operate using RTK technology. During measurements, a connection is established with the ASGEUPOS system to obtain reference corrections and achieve position accuracy at the level of +/- 2 cm. The proposed measurement set can be used for road inspections as well as for assessing the efficiency of transport systems, where a strong correlation between the camera image and its position is required.
VEHICLE POSITION AND ROAD IMAGE RECORDING AT TRANSPORT
SYSTEMS EFFICIENCY DESCRIPTION.
This paper presents a road image recording unit supported by vehicle position based on GPS-INS-RTK technology. A “megapixel” camera was applied to the measurement equipment to record road images. The SPAN system from the NOVATEL firm was used to define accurate vehicle position, which consists of: a GPS receiver, an inertial unit, and a radio modem enabling system operation using RTK-2 technology. A network connection is activated between the GPS system and the ASGEUPOS server via a radio modem, and thanks to that, reference corrections are received at the level of +/- 2 cm. The proposed measurement equipment can be used for road inspection and any other tasks in the transport sector that require high correlation between the camera image and its position. The proposed measurement system can be used for road inspection and transport system efficiency description, where high correlation between the camera image and its position is demanded. (…)
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