Patent · US Active

Predictive maintenance of exercise machines with time-of-flight sensors

US11747471B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

SONY GROUP CORPORATION · JP

Inventors

Anders Linge · Katrineholm, SE
Jens RYDBERG · Lund, SE
Henrik Bengtsson · Lund, SE

Key dates

Filing date	Jul 16, 2020
Grant date	Sep 5, 2023
Priority date	—
Expiry date	Feb 13, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG01S7/497
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A monitoring device performs a method of detecting a need for maintenance of an exercise machine comprising a time-of-flight, ToF, sensor. The method comprises obtaining a measurement signal from the ToF sensor at a predefined operating condition of the exercise machine. Based on the measurement signal, the method determines a measured distance between the ToF sensor and a reflective element in the exercise machine. The measured distance has been found to be responsive to accumulation of deposits on the ToF sensor and is thus evaluated by the method to detect a need for cleaning. The method thereby enables preventive maintenance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.