Vision-based high-precision rotating speed measuring device and measuring method thereof

• Main Authors: LAN MENGYUAN, CHEN SHIQI, SHAN ZHEN, ZHAO ANJI, WANG ZHONGQIU, HAO CHENHANG, YANG JIANHUA, LEE SANG-WON, TIAN FENG, LOU LITAI
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MEASURING; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; PHYSICS; TESTING

The invention discloses a vision-based high-precision rotating speed measuring device and a measuring method thereof. The vision-based high-precision rotating speed measuring device comprises a rotating shaft, a camera device and a speed measuring mark, the camera device faces the rotating shaft, and the speed measurement mark is attached to the surface of the rotating shaft. A virtual line coinciding with the axis of the rotating shaft under the visual angle of the camera device is defined as a center line, the intersection position of the speed measurement mark and the center line changes continuously in a video shot by the camera device in the process that the speed measurement mark rotates along with the rotating shaft, and the rotating speed of the rotating shaft is calculated according to the length change of a line segment at the intersection position of the speed measurement mark and the center line. The rotating speed of the rotating shaft can be accurately measured; by arranging the speed measuremen