CN110887447A - Tower deformation detection sensor and detection method thereof - Google Patents
Tower deformation detection sensor and detection method thereof Download PDFInfo
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- CN110887447A CN110887447A CN201911123011.8A CN201911123011A CN110887447A CN 110887447 A CN110887447 A CN 110887447A CN 201911123011 A CN201911123011 A CN 201911123011A CN 110887447 A CN110887447 A CN 110887447A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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Abstract
The invention discloses a tower deformation detection sensor and a detection method thereof, wherein the tower deformation detection method comprises the following steps: step S1: fixing a camera on the top end of a tower; step S2: fixing a positioning device at the bottom end of a tower; step S3: placing the optical mark at a corresponding position as a point to be detected; step S4: saving the image shot for the first time after the camera is installed and taking the image as an initial state; step S5: and obtaining deformation data of each detection point of the tower through calculation and analysis. The tower deformation detection sensor and the detection method thereof disclosed by the invention can detect the tower in real time and all weather in high-voltage and dangerous environments, provide reliable real-time detection data for related personnel, and can take countermeasures in time once problems are found.
Description
Technical Field
The invention belongs to the technical field of tower deformation detection, and particularly relates to a tower deformation detection sensor and a tower deformation detection method.
Background
Along with the scientific and technological progress and the modern development of the society, the quality and the demand of people's life are continuously improved, and the power consumption is also greatly improved, which puts forward higher and higher requirements on the safety and the reliability of the power supply of a power grid. The transmission and distribution of electric power cannot be separated from overhead high-voltage transmission lines, high-voltage overhead towers and transmission cables are widely distributed, and the safety and the benefit of an electric power system are determined by the working operation quality of the overhead high-voltage transmission lines and the transmission cables. Along with the gradual and long-term, the shaft tower receives natural factors such as wind, frost, rain and snow and human factors such as underground mining areas with different shapes caused by mineral mining in recent years, light people can crack, incline and deform the shaft tower, and heavy people cause the shaft tower to topple over and collapse, so that the safe operation of the power transmission network is greatly threatened, and the life and property of people are lost.
In the existing tower deformation detection, extensive detection is mostly carried out in a manual visual inspection mode; secondly, carrying a simple test instrument to the site for temporary test; other types such as satellite monitoring, inspection robots and the like have high cost and are not suitable for monitoring high-voltage or dangerous towers.
Disclosure of Invention
The invention mainly aims to provide a tower deformation detection sensor and a detection method thereof, which can detect a tower in real time and all weather in a high-voltage and dangerous environment, provide reliable real-time detection data for related personnel and take countermeasures in time once problems are found.
The invention also aims to provide a tower deformation detection sensor and a detection method thereof, which solve the problem of insufficient maintenance personnel and reduce the labor intensity of the maintenance personnel.
In order to achieve the above object, the present invention provides a tower deformation detection method,
as a further preferable embodiment of the above-mentioned technical means, the method comprises the steps of:
step S1: fixing a camera on the top end of a tower;
step S2: fixing a positioning device at the bottom end of a tower;
step S3: placing the optical mark at a corresponding position as a point to be detected;
step S4: saving the image shot for the first time after the camera is installed and taking the image as an initial state;
step S5: and obtaining deformation data of each detection point of the tower through calculation and analysis.
As a further preferable embodiment of the above technical means, step S5 is specifically implemented as the following steps:
step S5.1: when the deformation data of the current tower needs to be acquired, the camera shoots images again and stores the images as the current state;
step S5.2: respectively calculating parameters of the camera in an initial state and a current state according to a coordinate system principle;
step S5.3: and obtaining deformation data of each detection point of the tower according to a deformation calculation principle.
As a further preferred embodiment of the above technical solution, step S5.2 is specifically implemented as the following steps:
step S5.2.1: converting the image pixel coordinate system into an image physical coordinate system;
step S5.2.2: converting the image physical coordinate system into a camera coordinate system;
step S5.2.3: the camera coordinate system is converted to a world coordinate system.
As a further preferred embodiment of the above technical solution, step S5.3 is specifically implemented as the following steps:
step S5.3.1:
step S5.3.2:
step S5.3.3:
as a further preferable technical solution of the above technical solution, the calculation formula is:
as a further preferable embodiment of the above technical means, step S3 is specifically implemented as the following steps:
step S3.1: placing an optical marker on a positioning device;
step S3.2: placing the optical mark on a tower body of a tower;
step S3.3: the optical markers are placed at preset positions.
In order to achieve the above object, the invention further provides a tower deformation detection sensor, which comprises a camera, a positioning device and an optical mark.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
In a preferred embodiment of the invention, the skilled person will note that the tower, camera, etc. to which the invention relates may be regarded as prior art.
Preferred embodiments.
The invention discloses a tower deformation detection method, which comprises the following steps:
step S1: fixing a camera on the top end of a tower;
step S2: fixing a positioning device at the bottom end of a tower;
step S3: placing the optical mark at a corresponding position as a point to be detected;
step S4: saving the image shot for the first time after the camera is installed and taking the image as an initial state;
step S5: and obtaining deformation data of each detection point of the tower through calculation and analysis.
Specifically, step S5 is implemented as the following steps:
step S5.1: when the deformation data of the current tower needs to be acquired, the camera shoots images again and stores the images as the current state;
step S5.2: respectively calculating parameters of the camera in an initial state and a current state according to a coordinate system principle;
step S5.3: and obtaining deformation data of each detection point of the tower according to a deformation calculation principle.
More specifically, step S5.2 is embodied as the following steps:
step S5.2.1: converting the image pixel coordinate system into an image physical coordinate system;
step S5.2.2: converting the image physical coordinate system into a camera coordinate system;
step S5.2.3: the camera coordinate system is converted to a world coordinate system.
Further, step S5.3 is embodied as the following steps:
step S5.3.1:
step S5.3.2:
step S5.3.3:
furthermore, the calculation formula for converting the pixel coordinate system of the image into the world coordinate system is as follows:
preferably, step S3 is embodied as the following steps:
step S3.1: placing an optical marker on a positioning device;
step S3.2: placing the optical mark on a tower body of a tower;
step S3.3: the optical markers are placed at preset positions.
The invention also discloses a tower deformation detection sensor which comprises a camera, a positioning device and an optical mark.
Preferably, the optical mark is placed on the positioning device, the tower body of the tower and a preset position.
Preferably, the camera is fixed to the top end of the tower.
Preferably, the positioning device is fixed to the bottom end of the tower.
Preferably, the optical markers are placed at corresponding positions as points to be detected.
Preferably, the first captured image is saved after the camera is installed and is taken as an initial state.
Preferably, when the current deformation data of the tower needs to be acquired, the camera shoots images again and stores the images as the current state, parameters of the camera in the initial state and the current state are respectively calculated according to a coordinate system principle, and the deformation data of each detection point of the tower is acquired according to a deformation calculation principle.
It should be noted that the technical features of the tower, the camera, and the like related to the present patent application should be regarded as the prior art, and the specific structure, the operation principle, the control mode and the spatial arrangement mode of the technical features may be conventional choices in the field, and should not be regarded as the invention point of the present patent, and the present patent is not further specifically described in detail.
It will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.
Claims (7)
1. A tower deformation detection method is characterized by comprising the following steps:
step S1: fixing a camera on the top end of a tower;
step S2: fixing a positioning device at the bottom end of a tower;
step S3: placing the optical mark at a corresponding position as a point to be detected;
step S4: saving the image shot for the first time after the camera is installed and taking the image as an initial state;
step S5: and obtaining deformation data of each detection point of the tower through calculation and analysis.
2. The tower deformation detection method according to claim 1, wherein the step S5 is implemented as the following steps:
step S5.1: when the deformation data of the current tower needs to be acquired, the camera shoots images again and stores the images as the current state;
step S5.2: respectively calculating parameters of the camera in an initial state and a current state according to a coordinate system principle;
step S5.3: and obtaining deformation data of each detection point of the tower according to a deformation calculation principle.
3. The tower deformation detection method according to claim 2, wherein the step S5.2 is implemented as the following steps:
step S5.2.1: converting the image pixel coordinate system into an image physical coordinate system;
step S5.2.2: converting the image physical coordinate system into a camera coordinate system;
step S5.2.3: the camera coordinate system is converted to a world coordinate system.
4. The tower deformation detection method according to claim 2, wherein step S5.3 is implemented as the following steps:
step S5.3.1:
step S5.3.2:
step S5.3.3:
5. the tower deformation detection method according to claim 3, wherein the formula for calculating the parameters is as follows:
6. the tower deformation detection method according to claim 1, wherein the step S3 is implemented as the following steps:
step S3.1: placing an optical marker on a positioning device;
step S3.2: placing the optical mark on a tower body of a tower;
step S3.3: the optical markers are placed at preset positions.
7. A tower deformation detection sensor applying the tower deformation detection method of claim 1, characterized by comprising a camera, a positioning device and an optical mark.
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| CN201911123011.8A CN110887447A (en) | 2019-11-16 | 2019-11-16 | Tower deformation detection sensor and detection method thereof |
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| CN201911123011.8A CN110887447A (en) | 2019-11-16 | 2019-11-16 | Tower deformation detection sensor and detection method thereof |
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