Smart road surface detection method and edge collection device, cloud-based road surface recognition module and system thereof

A smart road surface detection method comprising:

• using at least one edge mobile device to collect a plurality of streamed videos of roadways with poor pavements and corresponding data of a front inertial attitude, a rear inertial attitude, and GPS data thereof, the front inertial attitude measured by a front inertial sensor installed at a front of a vehicle, the rear inertial attitude measured by a rear inertial sensor installed at a rear of the vehicle;
• conducting a preliminary recognition process on the plurality of collected streamed videos separately in order to select a pavement condition index (PCI) characteristic from bounding boxes of a road surface;
• organizing the plurality of collected streamed videos and the corresponding inertial attitude, rear inertial attitude, and GPS data thereof into a plurality of metadata to be uploaded and stored in a cloud server, wherein each front inertial attitude value in the metadata has a corresponding rear inertial attitude value measured concurrently therewith;
• by a road surface recognition module executing on the cloud server:
• identifying and storing PCI eigenvalues of at least one of the plurality of collected streamed videos based on a plurality of testing streamed videos of selected roads with poor pavements and the corresponding front inertial attitude and rear inertial attitude thereof separately, and
• deriving surface recognition results for the at least one of the plurality of collected streamed videos from the PCI eigenvalues, front inertial attitude, and rear inertial attitude thereof;
• and
• displaying the derived surface recognition results for the at least one of the plurality of streamed videos in a geographic information system according to the GPS data thereof.