Power transmission cable video line patrol method and terminal
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A transmission line and video technology, applied in the field of electronic information, can solve the problems of low inspection frequency, manual control, and no overall view, and achieve the effects of high line inspection efficiency, smooth movement process, and smooth zoom process.
Active Publication Date: 2020-08-04
SANLI VIDEO FREQUENCY SCI & TECH SHENZHEN
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Problems solved by technology
Among them, both manual inspection and drone inspection require people to go to the site. The frequency of inspection is low, and bad weather makes it impossible to inspect the site; online monitoring device inspection can be checked at any time, but it is necessary to check the equipment and cables on the tower. , also requires manual control, which is time-consuming and labor-intensive
[0003] The disadvantages of the existing technology are: the situation of the inspection pole tower is controlled manually, or many preset positions are set, and the positions are viewed one by one. There is no overall view, and it is not known whether there are omissions
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Embodiment 1
[0056] Please refer to Figure 1 to Figure 5 , Embodiment 1 of the present invention is a video line inspection method for power transmission cables, such as figure 1 shown, including the following steps:
[0057] S1. Obtain multiple calibration preset positions of the power transmission cable.
[0058] The calibration preset positions may include the starting point, end point and inflection point of the power transmission cable, etc., and the number of calibration preset positions can be selected according to needs.
[0059] S2. Respectively acquire the horizontal rotation angle, the vertical rotation angle and the lens magnification of the ball camera at the multiple calibration preset positions.
[0060] The horizontal rotation angle is Pan in PTZ, the vertical rotation angle is Tilt in PTZ, and the lens magnification is Zoom in PTZ.
[0061] S3. Using the spline function to fit the variation relationship between the horizontal rotation angle and the vertical rotation an...
Embodiment 2
[0070] Please refer to Image 6 , the second embodiment of the present invention is:
[0071] A transmission cable video line inspection terminal 100, corresponding to the method in Embodiment 1, including a memory 1, a processor 2, and a computer program stored in the memory 1 and operable on the processor 2, the processing Implement the following steps when the device 2 executes the computer program:
[0072] Obtain multiple calibration preset positions of the transmission cable;
[0073] Respectively acquire the horizontal rotation angle, vertical rotation angle and lens magnification of the dome camera at the multiple calibration preset positions;
[0074] Using the spline function to fit the relationship between the horizontal rotation angle and the vertical rotation angle to obtain a first fitting function;
[0075] The spline function is used to fit the change relationship between the calibration preset position and the lens magnification, and a second fitting functi...
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Abstract
The invention discloses a power transmission cable video line patrol method and a terminal. The method comprises the following steps: acquiring a plurality of calibration preset positions of a power transmission cable; respectively obtaining the horizontal rotation angle, the vertical rotation angle and the lens multiplying power of the dome camera at the plurality of calibration preset positions;fitting the change relationship between the horizontal rotation angle and the vertical rotation angle by adopting a spline function to obtain a first fitting function; fitting the change relationshipbetween the calibration preset position and the lens magnification by adopting a spline function to obtain a second fitting function; calculating according to the first fitting function and the second fitting function to obtain line patrol parameters of a plurality of new preset positions; and enabling the dome camera to perform automatic line patrol on the power transmission cable according to the line patrol parameters of the plurality of new preset positions. The whole moving process and the zooming process are smooth during line patrol, line patrol can be automatically carried out, manualcalibration is not needed, and the line patrol efficiency is high.
Description
technical field [0001] The invention relates to the technical field of electronic information, in particular to a method and terminal for video inspection of power transmission cables. Background technique [0002] In order to ensure the safety of transmission cable channels, power companies generally use three modes of manual inspection, drone inspection, and online monitoring device inspection for cable inspection. Among them, both manual inspection and drone inspection require people to go to the site. The frequency of inspection is low, and bad weather makes it impossible to inspect the site; online monitoring device inspection can be checked at any time, but it is necessary to check the equipment and cables on the tower. , also requires manual control, which is time-consuming and labor-intensive. [0003] The disadvantages of the existing technology are: the situation of the inspection tower is manually controlled, or many preset positions are set, and the positions ar...
Claims
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Application Information
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