Patent ID: 11857839
Assignee: WISTRON CORPORATION
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 13:
14. A method for retrofitting exercise machines, the method comprising:
removably attaching a sensor module to a moving part of an exercise machine, the sensor module being configured to detect movements of the moving part and transmit detected data by a first wireless communication connection, wherein the detected data includes angular acceleration changes of the moving part for determining a speed level of a motor that drives the moving part;
placing a control module in a vicinity, yet separated from the exercise machine, the control module being configured to receive the detected data through the first wireless communication connection, calculate an angle value using the detected data and transmit the angle value by a second wireless communication connection to a display device, and the control module being further configured to compare the angular acceleration changes with a predetermined threshold.