Rail comprehensive inspection method based on air-rail double-purpose unmanned aerial vehicle

A drone and track technology, applied in the field of drones, can solve problems such as poor flexibility, occupying normal driving space, and high cost, and achieve the effects of strong anti-interference ability, high flexibility, and low cost

Inactive Publication Date: 2017-02-22
BEIJING JIAOTONG UNIV
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AI Technical Summary

Problems solved by technology

[0004] In the existing method of using UAV to detect track defects, the lack of fasteners can only be detected based on the image data collected in the air, but the precise detection of cracks in rails or sleepers cannot be carried out. Man-machines can only drive on land, and cannot continuously drive along the railway track, so it cannot be applied to the precise detection of the railway track
[0005] The present invention proposes a dual-purpose special UAV for air and rail for safety detection on high-speed rails. The flight mode is use

Method used

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  • Rail comprehensive inspection method based on air-rail double-purpose unmanned aerial vehicle
  • Rail comprehensive inspection method based on air-rail double-purpose unmanned aerial vehicle
  • Rail comprehensive inspection method based on air-rail double-purpose unmanned aerial vehicle

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Embodiment Construction

[0028] 1-body, 2-rotating blades, 3-casing, 4-high-definition camera, 5-propelling propeller, 6-horizontal guide wheel, 7-telescopic connecting rod, 8-ultrasonic rangefinder, 9-stepping motor, 10 - U-bar, 11-rolling wheels.

[0029] (1) UAV design

[0030] Classified by scale, UAVs can be divided into micro UAVs, light UAVs, small UAVs, and large UAVs. The present invention considers that the actual situation on the railway is not complicated, and its own workload is not large. Through comparative analysis, the four-rotor light UAV selected by the present invention, such as figure 1 shown. Based on the current experimental environment, some main parameters of the UAV in this scheme are listed in Table 1, such as flight height, flight time, wind resistance, etc. The UAV has a long load flight time and low vibration during flight, which is convenient for the measurement of the ultrasonic height sensor in the test, and can carry 2 kg, which can meet the experimental requiremen...

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Abstract

The invention provides a rail comprehensive inspection method based on an air-rail double-purpose unmanned aerial vehicle. Two modes where the unmanned aerial vehicle flies in air and moves along a steel rail are adopted, the flight mode is adopted when quick detection is required for rail fastener missing and the like, the steel rail operating mode is adopted when high-precision detection is required for steel rail and tier surface defects, the two working modes may be arranged and allocated flexibly and switched at any time according to field requirements, and the significant problems of traditional surface inspection mode, such as high cost, poor sensitivity and occupation of normal driving space and other problems, are broken through and solved.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicles, in particular to a method for comprehensive orbit detection using an air-orbit dual-purpose unmanned aerial vehicle. Background technique [0002] At present, the quality inspection of my country's high-speed railway lines mainly includes manual inspection, rail inspection vehicle inspection and other means. The inspection of railway fasteners mainly relies on manual inspection. This method is time-consuming, laborious, and has poor reliability. The time for on-road inspections is insufficient. Especially with the gradual development of my country's high-speed railways, the manual inspection method has been completely unable to adapt to high-speed railways. The need for security checks. The detection of track space geometric dimension information, rail crack degree index, and train power index is mainly a combination of detection methods such as rail inspection vehicles and manual inspecti...

Claims

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Application Information

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IPC IPC(8): B64C39/02B61K9/10
CPCB61K9/10B64C39/02
Inventor 秦源璟吴云鹏赵雪军
Owner BEIJING JIAOTONG UNIV
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