The invention provides a pavement flatness detection method and
system, and is suitable for the technical field of pavement flatness detection. The method comprises the steps of
software and hardware preparation, coded pattern
data acquisition, coded pattern
data processing and uneven area statistics, and high-precision acquisition of pavement depth information is realized by carrying a range finder, a surface
structured light projection device and a high-definition camera through an unmanned aerial vehicle and adopting a surface
structured light technology; according to the method, automatic flight path planning is utilized, real-
time data processing is combined, and efficient detection of the full length of the
road surface is achieved; the detection
system is carried by the unmanned aerial vehicle, ground vibration interference is isolated, meanwhile, the manual participation degree is reduced, the stability of the
system in unevenness measurement is remarkably improved, the
automation level of detection and the
data processing efficiency are improved, and the
adverse effect of all-road-section fences on traffic is also avoided; according to the method, more reliable and consistent pavement flatness evaluation can be provided in a complex environment.