Method for determining position of coring point of newly paved asphalt pavement by using unmanned aerial vehicle
An asphalt pavement and drone technology, applied in computer parts, image data processing, instruments, etc., can solve the problems of failing to reach the quality inspection and disease monitoring of the whole life cycle of the pavement, easy to deviate from the lowest temperature area, etc. The effect of clarity and improved detection accuracy
Active Publication Date: 2021-11-02
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 belt 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 ...
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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 of a newly paved asphalt pavement by using an unmanned aerial vehicle. The method comprises the steps: processing an image shot by an unmanned aerial vehicle, obtaining the d value (d value represents the maximum circle radius with the maximum low-temperature connected area pixel as the circle center) distribution of the maximum low-temperature connected area through calculation, rapidly determining the circle center position of the maximum circle in the maximum low-temperature connected area, and taking the circle center position as a coring point, so it can be ensured that a coring point is located in a low-temperature area, and the asphalt pavement quality detection precision is guaranteed. Besides, a reference plate is arranged, so that a reference position is provided for determining the position of a coring point, and the definition of images shot by the unmanned aerial vehicle can be ensured even if a low-temperature area is far away from a curb, so the quality detection precision of the asphalt pavement is improved.
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): G06K9/00G06K9/32G06T7/11G06T7/136G06T7/187G06T7/73G06T7/90
Inventor 魏帅帅韩文扬张欢韦金城马士杰牛磊陈凯
Owner SHANDONG TRANSPORTATION INST