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Photographic measurement system and method for pavement evenness

A technology of camera measurement and flatness, which is applied in the fields of close-range photogrammetry, computer vision, highway engineering, and digital image processing. It can solve the problems of low measurement accuracy, high equipment cost, and slow measurement speed, and achieve high measurement efficiency and measurement accuracy. high effect

Inactive Publication Date: 2011-10-12
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0005] In general, the current road surface roughness detection equipment is mainly limited by the number, type and detection method of sensors, and there are problems such as high equipment cost, slow measurement speed, and low measurement accuracy.

Method used

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  • Photographic measurement system and method for pavement evenness
  • Photographic measurement system and method for pavement evenness
  • Photographic measurement system and method for pavement evenness

Examples

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Embodiment Construction

[0041] Such as figure 1 As shown, the camera measurement system for road surface roughness proposed in this embodiment is composed of two parts, the main vehicle 1 and the target vehicle 2. A certain number of targets 3 are fixed on the target vehicle 2 according to the measurement point density requirements. The target 3 and the target vehicle 2 is movable connection, and the upper part is fixed with the manual cooperation sign 9 with DC power supply 8, and the bottom is the wheel 4 directly contacting with the road surface. Therefore, when the target vehicle 2 advances on the road surface 5, the smoothness of the road surface can be reflected by the manual cooperation sign 9. In addition, a mileage encoder 7 and a wireless data transceiver module 7 are installed on the target vehicle. A camera measurement system is installed on the main vehicle, which consists of an industrial camera 10 with a motorized lens 11, a pan-tilt 12 for placing the industrial camera 10, an indust...

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Abstract

The invention discloses a photographic measurement system for pavement evenness, which comprises a main car with a photographic measurement device and a target car with targets; a mileage coder and a wireless data transceiver module are mounted on the target car; the photographic measurement device on the main car comprises an adjustable camera-mounting platform, a camera, an industrial personal computer and a wireless data transceiver module, the camera, the industrial personal computer and the wireless data transceiver module are mounted on the adjustable camera-mounting platform, and both the signal output end of the camera and the mileage coder on the target car are connected with the signal input end of the industrial personal computer through the wireless data transceiver module. Correspondingly, the invention also puts forward a measurement method based on the photographic measurement system. Under the premise of ensuring the precision and efficiency of measurement, the photographic measurement system and the method can effectively control the measurement cost.

Description

technical field [0001] The invention relates to the fields of close-range photogrammetry, digital image processing, computer vision, highway engineering, etc., and further refers to a camera measurement system and method for road surface smoothness. Background technique [0002] Highway pavement roughness is an important index in pavement evaluation and pavement construction acceptance. The smoothness directly reflects the driving comfort of the vehicle and the safety and service life of the road surface. The detection of road surface roughness can provide important information for decision makers, so that decision makers can make optimal decisions for road surface repair, maintenance and renovation. On the other hand, the detection of pavement roughness can accurately provide information on the quality of pavement construction, and provide an objective index for quality evaluation of pavement construction. [0003] At present, the testing equipment for road surface roughn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/01H04N17/00
Inventor 于起峰伏思华胡浩军姜广文
Owner NAT UNIV OF DEFENSE TECH
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