2 results about "Weightlessness" patented technology

The invention belongs to the technical field of tumble detection, and provides a tumble detection system and method, equipment and a medium, the system comprises a weightlessness impact motion monitoring module used for calculating weightlessness motion characteristics and impact motion characteristics of wearable equipment, and a rotation motion monitoring module used for running in parallel with the weightlessness impact motion monitoring module and monitoring the rotation motion of the wearable equipment. Calculating a rotation motion feature of the wearable device; and the tumble detection module is used for calculating to obtain a tumble detection result of the user according to the weightlessness motion feature, the impact motion feature and the rotation motion feature. According to the invention, through parallel calculation of the weightlessness motion feature, the impact motion feature and the rotation motion feature, the falling detection is carried out by using the specific'weightlessness-impact-rotation 'multi-mode continuous motion feature in the falling event, so that the real falling and the activities only containing part of violent actions in the daily life can be accurately distinguished; and the accuracy and the reliability of fall detection are obviously improved.

The application discloses a kind of to be suitable for multiple-specification large-size lens weightlessness detection clamping device, including installation base, azimuth component, pitch component, mirror chamber, adjustable back support component, adjustable mirror body anti-falling component, adjustable weight component.The application can be applied to the clamping of large-aperture mirror of different aperture, different thickness and different weight by the mutual cooperation of each component, solve the problem that large-aperture mirror body clamping of different specifications and models needs specially designed corresponding fixture;Gravity is unloaded to large-aperture mirror by weight component, eliminate the surface shape error of mirror surface shape precision caused by its own gravity, realize large-aperture mirror body gravity-free high-precision surface shape detection;Through the combined use of azimuth component and pitch component, the pitch rotation and azimuth rotation of multiple-specification large-aperture mirror body in the process of installation and detection are realized;In the process of installation and detection, one-time clamping can be realized, and surface shape detection under each working condition of mirror body is solved.