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Medium-low-speed maglev train gap detection method based on image processing

A magnetic levitation train and image processing technology, applied in image data processing, image enhancement, image analysis, etc., can solve problems such as nonlinear correction, weak anti-interference ability, and high cost

Active Publication Date: 2020-04-03
重庆凯磁智能科技研究院有限公司
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Problems solved by technology

[0007] Aiming at the deficiencies of the existing levitation gap measurement technology, the present invention aims to solve the problems of the existing maglev train gap sensor, such as weak anti-interference ability, complex installation process, high cost, and the need for nonlinear correction, etc., and realize single detection at the same time The function of the device to detect the gap value of two floating points at the same time

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  • Medium-low-speed maglev train gap detection method based on image processing
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  • Medium-low-speed maglev train gap detection method based on image processing

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Embodiment Construction

[0049] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] Gap sensing unit E of the present invention L and E R The suspension gap images of the current suspension point and the suspension point of the adjacent suspension frame are captured simultaneously by a high-speed industrial camera. The installation position and angle of the gap sensing unit are as follows: figure 1 shown. Two high-speed industrial cameras are respectively installed on the suspension point of this side and the half position of the electromagnet at the outermost end of the suspension point of the adjacent suspension frame. The optical axis of the camera is parallel to the horizontal plane and is in the rated suspension gap of 10 mm The midpoint of the position, that is, the vertical distance from the upper edge of the electromagnet is 5 mm , the optical axis of the camera forms an included angle of 60 degree...

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Abstract

The invention discloses a medium-low-speed maglev train gap detection method based on image processing, and the method comprises the steps of respectively using a high-speed industrial camera to collect suspension gap images by two gap sensing units, and transmitting the collected images to respective image processing units for the processing of the suspension gap images; respectively calculatingthe actual suspension gap value of the current suspension point and the actual suspension gap value of the suspension point of the adjacent suspension frame by respective gap calculation units I, andrespectively sending the actual suspension gap values to gap calculation units II of the suspension point on the side and the suspension point of the adjacent suspension frame; and calculating the final suspension gap value and sending a fault alarm signal by the gap calculation unit II when the difference between the two suspension gap values is too large. The medium-low-speed maglev train gap detection method has the advantages of strong anti-interference capability, low equipment cost, simple installation process, high linearity and no temperature drift; and meanwhile, the detection precision and the fault tolerance are higher.

Description

technical field [0001] The invention relates to the technical field of maglev trains, in particular to an image processing-based gap detection method for low- and medium-speed maglev trains. Background technique [0002] The maglev train is a new type of non-contact ground rail transportation. It takes 8~12 mm The suspension operation of the suspension gap cancels the wheels in the traditional vehicle, and realizes the non-contact operation of non-adhesive traction. Because of its low noise, wide speed range, fast acceleration and deceleration, and low maintenance costs, it has broad application prospects. [0003] As a device for measuring the gap between the bottom of the maglev train and the track, the levitation gap sensor is an indispensable key element in the maglev train. It transmits the measured suspension gap of the train to the suspension controller to realize the stable suspension of the maglev train at a given gap. The suspension sensor must be able to provid...

Claims

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Application Information

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IPC IPC(8): G01B11/14G06T7/00G06T7/80
CPCG01B11/14G06T7/0004G06T7/80G06T2207/30252G06T7/246G06T7/73G06T2207/10016G06T2207/20028G06T2207/20036
Inventor 靖永志郝建华孔杰龚倩文张昆仑
Owner 重庆凯磁智能科技研究院有限公司
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