A computer vision-based method for measuring elongation at break of cable sheath

A technology of elongation at break and computer vision, which is applied in the field of measurement, can solve the problems that the measurement results have a large influence on the subjective consciousness of the surveyor and low efficiency, and achieve the effect of automatic measurement.

Active Publication Date: 2022-05-06
成都大公博创信息技术有限公司
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Problems solved by technology

At present, the measurement of various parameters of cables on the market is mainly carried out by manual measurement, which has the disadvantages of low efficiency and the measurement results are greatly affected by the subjective consciousness of the measurer. Therefore, the automatic measurement method of the elongation at break of the cable sheath appears especially important

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  • A computer vision-based method for measuring elongation at break of cable sheath
  • A computer vision-based method for measuring elongation at break of cable sheath
  • A computer vision-based method for measuring elongation at break of cable sheath

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[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without cre...

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Abstract

The present invention belongs to the technical field of measurement, and in particular relates to a method for measuring the elongation at break of a cable sheath based on computer vision. Clamp vertically; stretch the sheath, and use a camera to shoot the stretching process at the same time; obtain the position information of the marker through image processing, and use the frame difference method to track the marker, and record the marker spacing in real time; use the length increase When the length of the sheath changes suddenly, it is judged that the sheath is broken, and the measurement result of the elongation at break of the sheath sample is output.

Description

technical field [0001] The invention belongs to the technical field of measurement, and in particular relates to a method for measuring the elongation at break of a cable sheath based on computer vision. Background technique [0002] The cable sheath is an important material to protect the inner core of the cable, and it plays a role in protecting the inner core from external mechanical damage and chemical corrosion. Therefore, it is particularly important to detect various quality parameters of the cable sheath. The quality parameters of the cable sheath mainly include the maximum tensile force, tensile stress, tensile strength and elongation at break. These quality parameters are inseparable from the measurement of the maximum deformation of the cable sheath. At present, the measurement of various parameters of cables on the market is mainly carried out by manual measurement, which has the disadvantages of low efficiency and the measurement results are greatly affected by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/62G01B11/08G01N3/04G01N3/08
CPCG06T7/62G01B11/08G01N3/04G01N3/08
Inventor 牟少华
Owner 成都大公博创信息技术有限公司
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