Wheelchair curling track identifying, positioning and tracking and motion state detecting system

Abstract

The invention provides a wheelchair curling track identifying, positioning and tracking and motion state detecting system, and belongs to the technical field of special devices for sports. The system comprises a motion state detection device, an image acquisition device and a central control computer which is respectively connected with the two devices. The motion state detection device is used for collecting motion state data in a curling motion process in real time; the image acquisition device is used for acquiring a curling training or competition video; and the central control computer calculates the motion state data to obtain a curling release speed and a release angular speed, and processes the video data to obtain the reproduction result of the motion track of the curling in the actual ice rink. According to the method, the motion state data of the curling can be detected in real time, the motion track condition of the curling on the actual ice rink is reconstructed, and a scientific and effective training means and a resetting method are provided for wheelchair curling athletes and coaches.

Description

technical field [0001] The invention belongs to the technical field of special devices for sports, and in particular relates to a wheelchair curling trajectory identification, positioning and tracking and motion state detection system. Background technique [0002] Wheelchair curling is a young sport. It emerged in Europe in the late 1990s and quickly spread to Europe. Because of its interesting and competitive nature, wheelchair curling quickly won the favor of many sports enthusiasts . [0003] Wheelchair curling and traditional curling use the same track and the same curling stones. Some rules of wheelchair curling also refer to the rules of curling, but there are still obvious differences between the two. In wheelchair curling, athletes must sit in wheelchairs and use push rods to throw. Due to the long length of the ice rink, the length between the inner edges of the two end lines of the track is 45.72 meters. Wheelchair curlers are divided into tracks. At both ends, ...

AI Technical Summary

Problems solved by technology

During the process of brushing the ice, curlers can easily observe the motion state and trajectory of the curling, and adjust the power and rotation of the next throw accordingly. However, it is difficult for wheelchair curlers to directly observe the ice due to the inconvenience of movement. The trajectory and state of the jug on the ice rink

[0005] Xiao Shuming et al. proposed a smart curling and method that can collect its own motion parameters in real time in the patent CN 103157262 B. However, the curling has a large volume and can only detect the motion state data of the curling itself, and no further information is provided. The processing and display module does not provide a scientific and effective technical and tactical analysis system for athletes; Jin Jing et al. proposed a curling ball motion state estimation method in the patent CN 111709301 A, but in complex curling games or curling training Among them, there are often more than one curling balls on the ice rink. The curling ball target detection network trained by this method cannot accurately identify the curling balls that need to be tracked, and the curling handle angle obtained by it is only an estimated result, which cannot be given. Wheelchair curlers provide accurate reference data

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