Yarn tension detection method and device based on machine vision

The invention discloses a yarn tension detection method and device based on machine vision, and the method comprises the following steps: 1, installing a camera on the side surface of a yarn, and enabling the winding end and the unwinding end of the yarn to be disposed in the view field of the camera; 2, a yarn image is shot, and a yarn geometric image configuration is obtained; and 3, extracting geometric parameters of the yarns, and solving the tension of the yarns through the mathematical model. The invention further provides a detection device based on the method, the detection device comprises a base, the base is provided with a camera and a support, the support is provided with two motors, the two motors are each provided with a yarn drum, one yarn drum carries a yarn winding end, and the other yarn drum carries a yarn unwinding end. By means of the detection device and the detection method, non-contact measurement of the yarn tension can be achieved. 本发明公开了一种基于机器视觉的纱线张力检测方法及检测装置，所述方法包括以下步骤：步骤1、在纱线侧面安装相