A system and methods for generating automated real-time live video stream of a target that is moving around an obstacle of pre-defined area uses an automated video streaming provided with a plurality of video cameras that are positioned about the pre-defined area by tracking the moving target and displaying the moving target on the animated timeline such as current class leader will be automatically displayed and compared, in real time, with the rider on the track and integrating the data collected by the wireless network to make video stream from that camera to the optimized video stream.

The present disclosure discloses a position changeable sensor (100) which is disposed on an exercise equipment. The position changeable sensor includes a main body (110) removably disposed on a selectable position on the exercise equipment. The main body includes at least one gravity sensor (140) and a removable connecting device connected with the exercise equipment and the main body.

The present invention discloses a seamless webbing loop of a rock climbing quickdraw, a textile machine and a textile method. The seamless webbing loop of a rock climbing quickdraw contains a plurality of tubular webbing layers, one surrounded by another, among which there is at least one indication layer. The indication layer is adjacent to the outermost one among the plurality of tubular webbing layers or is the innermost one among the plurality of tubular webbing layers. Such a multilayered structure of the webbing loop enhances the strength of the webbing loop for the quickdraw, but does not cause a seam to the webbing loop. Further, the indication layer contained in the webbing loop functions to remind a user of timely replacement of the webbing loop when the webbing loop is worn, and thus the webbing loop is safe in use. With the movable spindle assembly arranged on the textile machine, it is convenient to remove the webbing loop from the textile machine. In addition, the webbing loop disclosed in the present invention has a simple structure without any seam, and is strong, safe and durable.

Athletic performance sensing and/or tracking systems include components for measuring or sensing athletic performance data and/or for storing and/or displaying desired information associated with the athletic performance to the user (or others). Such systems can allow users a wide variety of options in creating workouts, selecting and presenting media content during the athletic performance, etc., e.g., to help keep users entertained and motivated. In some instances, user feedback may be used, optionally in combination with objective data relating to a workout, to control features of the workout routine, to control the music or other media content selected and/or presented, and/or to control features of future workout routines and/or the presented media content.