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Road slope rapid detection method for off-highway tourism vehicle

A technology of road slope and detection method, which is applied in measurement devices, mapping and navigation, measurement of inclination, etc., can solve the problems of increased measurement cost, high investment cost, and large workload.

Pending Publication Date: 2022-05-13
绍兴市特种设备检测院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The total station can be used to accurately measure the slope of the route, but the effective distance of a single measurement is generally about 20m. For long-distance routes, it is necessary to frequently change the position of the monitoring point and measure segment by segment. The task is heavy and the investment cost is high.
For the GPS base station measurement method, it is also necessary to frequently build base stations, which also has the problem of high investment costs
In order to ensure the driving safety of tourist vehicles and meet the exemption requirements of "except for short slopes with a slope length less than 20m", the relationship between "local detail slope" and "overall average slope" must be properly handled during slope measurement, which further increases The measurement cost of the traditional method

Method used

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  • Road slope rapid detection method for off-highway tourism vehicle
  • Road slope rapid detection method for off-highway tourism vehicle
  • Road slope rapid detection method for off-highway tourism vehicle

Examples

Experimental program
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Effect test

Embodiment

[0066] Embodiment: The test site is selected as a sightseeing car test base, the ramp is composed of an uphill section, a horizontal section and a downhill section, and the nominal gradient is 10%. The DJI Phantom 4RTK UAV is used for oblique photography. The UAV flight height is set to 25 meters, the average ground resolution of the image is 6.70mm / pixel, the tilt angle of the lens is 45°, the flight speed is 5m / s, and the horizontal 80% overlap. The UAV performed the shooting task according to the predetermined parameters, and obtained a total of 216 images, of which 196 images can be used for 3D reconstruction through aerial triangulation calculations. Table 1 shows the statistical results of position uncertainty of photos processed by aerial triangulation. The average position uncertainty in X, Y and Z directions is not more than 3mm.

[0067] Table 1

[0068] Position Uncertainty Statistics X direction (m) Y direction (m) Z direction (m) minimum val...

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Abstract

The invention discloses a road gradient rapid detection method for an off-highway tourism vehicle, and belongs to the technical field of special equipment inspection and detection. According to the method, the ground image of the traveling route of the sightseeing vehicle is shot by using the oblique photography technology of the unmanned aerial vehicle, the ground image is subjected to three-dimensional modeling, coordinates are extracted from the three-dimensional model to generate the slope-slope length curve of the sightseeing vehicle, and the slope-slope length curve is optimized, so that the slope of the traveling route of the sightseeing vehicle can be quickly detected.

Description

technical field [0001] The invention belongs to the technical field of inspection and detection of special equipment, and in particular relates to a method for quickly detecting road slopes of off-road sightseeing vehicles. Background technique [0002] Non-highway sightseeing vehicles (referred to as sightseeing vehicles), as a means of transportation operating in factories, tourist attractions, and playgrounds, are open in themselves, and the driving road conditions and surrounding driving environment are far lower than the national standard roads. When driving on the road, there are certain dangers such as collision, slipping, and overturning. In order to ensure the safe operation of sightseeing vehicles and reduce the incidence of accidents, the former General Administration of Quality Supervision, Inspection and Quarantine issued TSG N0001-2017 "Special Motor Vehicle Safety Technical Supervision Regulations in Sites (Factories)" issued by the former State Administration...

Claims

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Application Information

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IPC IPC(8): G01C9/00G01C11/34
CPCG01C9/00G01C11/34
Inventor 余焕伟唐艳同陈仙凤陈松宋剑华林仁波
Owner 绍兴市特种设备检测院
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