A method of using drones to determine the location of coring points for newly paved asphalt pavements
A technology of asphalt pavement and unmanned aerial vehicles, which is applied in computer components, image analysis, instruments, etc., can solve the problems of not reaching the quality inspection and disease monitoring of the whole life cycle of the pavement, and easy to deviate from the lowest temperature area, etc., to ensure clearness The effect of improving the detection accuracy
Active Publication Date: 2022-01-25
SHANDONG TRANSPORTATION INST
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Problems solved by technology
However, the current UAV on-site shooting technology can only determine the approximate outline and location of the low-temperature area. Without effective area identification and processing in the later stage, it is easy to deviate from the lowest temperature area during pavement coring and fail to reach the full life cycle of the pavement. Purpose of quality testing and disease monitoring
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Embodiment 1
[0041] Figure 1-Figure 11 Embodiment 1 of the present invention is shown.
[0042] A method for determining the location of a coring point for a newly paved asphalt pavement using an unmanned aerial vehicle, comprising the following steps:
[0043] S1: Float the UAV right above the road being paved, and use the UAV to find the low temperature area 2 during the paving process.
[0044] S2: Place the reference board 1 in the temperature area that meets the paving requirements, and make the reference board 1 be placed as close as possible to the low temperature area 2, measure the distance D1 from the center of the reference board to the curb 4, and record the distance from the center of the reference board 1 to the curb Perpendicular O with band 4, taking a visible light image including reference plate 1 and cryogenic region 2 ( figure 1 ), infrared image ( figure 2 ).
[0045] The reference plate 1 is used to provide a reference position for determining the location of th...
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The invention relates to the technical field of asphalt pavement construction quality inspection, in particular to a method for determining the position of a coring point on a newly paved asphalt pavement by using an unmanned aerial vehicle. By processing the image taken by the unmanned aerial vehicle, the maximum low-temperature connected area is calculated. d value (d value represents the maximum circle radius with the pixel in the maximum low-temperature connected area as the center) distribution, quickly determine the position of the center of the largest circle in the maximum low-temperature connected area, and use it as a coring point to ensure that the core point is located in the low-temperature area In order to ensure the quality detection accuracy of asphalt pavement. In addition, the present invention also provides a reference position for determining the position of the coring point by setting a reference plate, even when the low temperature area is far away from the curb belt, it can also ensure the clarity of the image taken by the drone, thereby improving the quality of the asphalt pavement Detection accuracy.
Description
technical field [0001] The invention relates to the technical field of asphalt pavement construction quality inspection, in particular to a method for determining the position of a coring point on a newly paved asphalt pavement by using an unmanned aerial vehicle. Background technique [0002] The paving construction of hot mix asphalt pavement has extremely high temperature requirements, and temperature control directly affects the quality and service life of the pavement entity. The temperature segregation generated during the paving process will directly lead to insufficient compaction in low temperature areas, thereby causing early diseases. Traditional asphalt paving construction mostly uses plug-in thermometers to measure temperature. During summer operations, the staff endure high temperatures and scorching heat, sampling back and forth to track the temperature of asphalt mixture in each process. In recent years, asphalt paving construction has begun to use handheld i...
Claims
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IPC IPC(8): G06V10/26G06V20/17G06T7/11G06T7/136G06T7/187G06T7/73G06T7/90
Inventor 魏帅帅韩文扬张欢韦金城马士杰牛磊陈凯
Owner SHANDONG TRANSPORTATION INST