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Power transmission line clear distance calculation and safety alarm method based on binocular image distance measurement

A transmission line, image ranging technology, applied in computing, image analysis, image enhancement and other directions, can solve the problems of large monitoring cost and maintenance cost, low application universality and generalizability, etc.

Pending Publication Date: 2021-04-20
CHONGQING UNIV
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Problems solved by technology

For contact and non-contact monitoring methods, although the measurement accuracy can meet the requirements of the project, both of them have large monitoring costs and maintenance costs, and the application universality and scalability are not high.

Method used

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  • Power transmission line clear distance calculation and safety alarm method based on binocular image distance measurement
  • Power transmission line clear distance calculation and safety alarm method based on binocular image distance measurement
  • Power transmission line clear distance calculation and safety alarm method based on binocular image distance measurement

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Embodiment Construction

[0065] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0066] Such as figure 1 As shown, the present invention discloses a method for calculating the net distance of transmission lines based on binocular image ranging, including the following steps:

[0067] S1. Collect binocular inspection images of transmission lines, and extract image feature points;

[0068] S2. Calculate the vertical clearance distance and the horizontal clearance distance between the transmission line and the spanned object based on the double-sided imaging model.

[0069] In daily inspections, UAVs or inspection helicopters use shooting or video devices to record images of inspection lines. However, the mass image data taken is currently widely used to identify damaged insulators and floating objects through images. In fact, these image information contain the real-time position status information and basic structural features of the li...

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Abstract

The invention discloses a power transmission line clear distance calculation and safety alarm method based on binocular image distance measurement, and the method comprises the steps: collecting a binocular inspection image of a power transmission line, and extracting image feature points; calculating a vertical clearance distance and a horizontal clearance distance between the power transmission line and the spanned object based on a binocular imaging model; and when the vertical clearance distance between the power transmission line and the spanned object is smaller than or equal to the preset vertical clearance distance or the horizontal clearance distance between the power transmission line and the spanned object is smaller than or equal to the preset horizontal clearance distance, sending a clear distance out-of-limit alarm to power transmission line operation and maintenance personnel. According to the invention, the problems of power transmission line clear distance calculation and safety alarm are solved by combining an image processing mode with a binocular imaging model, image information acquired by existing helicopter and unmanned aerial vehicle inspection is fully utilized, and compared with existing contact type and non-contact type monitoring methods, the monitoring flexibility is higher, the operation and maintenance cost is lower, and the application universality and the generalizability are higher.

Description

technical field [0001] The invention relates to the technical field of power transmission equipment safety, in particular to a method for calculating the net distance of a power transmission line based on binocular image distance measurement and for safety alarming. Background technique [0002] The clearance distance of the transmission line is an important parameter in the design and operation of the transmission line. The aging of the line, the operating load and the change of the surrounding environment will cause the line sag to change, resulting in insufficient clearance distance between the line and the crossed object, thus affecting the safety of the line. run. Therefore, it is of great engineering application value to quickly and automatically measure the clear distance of transmission lines, combine with the minimum clear distance requirements of crossing objects, automatically identify potential safety hazards, and issue risk alarms. [0003] Transmission line sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/55G06T7/73G06T7/80G06T5/00G06T7/13G06T7/40G06K9/46G06K9/00G08B21/24
CPCY04S10/50
Inventor 王建李昊熊小伏张波陈红州
Owner CHONGQING UNIV
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