Vibration monitoring beacon mode detection and transition

Patent metadata

Field	Value
Publication number	US-12297080-B2
Application number	US-202418586914-A
Country	US
Kind code	B2
Filing date	Feb 26, 2024
Priority date	Dec 5, 2018
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

According to an aspect, a method includes monitoring a plurality of vibration data by a vibration monitoring beacon and determining that the vibration monitoring beacon has been installed at a service location based on detecting an installation characteristic signature in the vibration data. The vibration monitoring beacon can transition into a learning mode based on determining that the vibration monitoring beacon has been installed at the service location. The method can also include monitoring for a learning mode termination event and transitioning the vibration monitoring beacon from the learning mode to a normal operation mode based on detecting the learning mode termination event.

First claim

What is claimed is:

1. A method comprising:
monitoring a plurality of vibration data by a vibration monitoring beacon;
determining that the vibration monitoring beacon has been installed at a service location based on detecting an installation characteristic signature in the vibration data;
transitioning the vibration monitoring beacon into a learning mode based on determining that the vibration monitoring beacon has been installed at the service location;
monitoring for a learning mode termination event;
comparing the vibration data in the normal operation mode to one or more characteristic signatures associated with one or more locations based on one or more of: a time domain analysis, a frequency domain analysis, and a sequence analysis; and
reverting to the learning mode based on determining that the vibration monitoring beacon is in an unknown state responsive to the comparing.

2. The method of claim 1 , wherein the installation characteristic signature comprises one or more spikes greater than a threshold level followed by a normal operating signature in the vibration data.

3. The method of claim 2 , wherein the normal operating signature comprises an elevated velocity in an expected direction of travel and within an expected range of variation.

4. The method of claim 1 , further comprising:
outputting a vibration signature based on the vibration data to one or more of: a service system and an analysis system.

5. The method of claim 4 , wherein the vibration monitoring beacon is configured to establish a one-way communication transmission to one or more of: the service system and the analysis system absent a communication reception capability at the vibration monitoring beacon.

6. The method of claim 1 , further comprising:
outputting a vibration signature based on the vibration data to one or more of: a service system and an analysis system.

7. The method of claim 6 , wherein the vibration monitoring beacon is configured to establish a one-way communication transmission to one or more of: the service system and the analysis system absent a communication reception capability at the vibration monitoring beacon.

8. The method of claim 1 , wherein the service location comprises an elevator car door.

9. A method comprising:
monitoring a plurality of vibration data by a vibration monitoring beacon;
determining that the vibration monitoring beacon has been installed at a service location based on detecting an installation characteristic signature in the vibration data;
transitioning the vibration monitoring beacon into a learning mode based on determining that the vibration monitoring beacon has been installed at the service location; and
monitoring for a learning mode termination event, wherein the learning mode comprises a higher sampling frequency than the normal operation mode, and an output heartbeat rate of the vibration monitoring beacon differs between the learning mode and the normal operation mode.

10. The method of claim 9 , further comprising:
outputting a vibration signature based on the vibration data to one or more of: a service system and an analysis system.

11. The method of claim 10 , wherein the vibration monitoring beacon is configured to establish a one-way communication transmission to one or more of: the service system and the analysis system absent a communication reception capability at the vibration monitoring beacon.

12. The method of claim 9 , wherein the service location comprises an elevator car door.

13. A system comprising:
one or more vibration sensors; and
a vibration monitoring beacon operably coupled to the one or more vibration sensors, the vibration monitoring beacon comprising a processing system configured to perform:
monitoring a plurality of vibration data;
determining that the vibration monitoring beacon has been installed at a service location based on detecting an installation characteristic signature in the vibration data; and

transitioning the vibration monitoring beacon into a learning mode based on determining that the vibration monitoring beacon has been installed at the service location, wherein the learning mode comprises a higher sampling frequency than a normal operation mode, and an output heartbeat rate of the vibration monitoring beacon differs between the learning mode and the normal operation mode.

14. The system of claim 13 , wherein the processing system is configured to perform:
monitoring for a learning mode termination event.

15. The system of claim 14 , wherein the processing system is configured to perform:
transitioning the vibration monitoring beacon from the learning mode to a normal operation mode based on detecting the learning mode termination event.

16. The system of claim 15 , wherein the learning mode termination event comprises one or more of detecting completion of a range of travel and a timeout period.

17. The system of claim 14 , wherein the processing system is configured to perform:
comparing the vibration data in the normal operation mode to one or more characteristic signatures associated with one or more locations based on one or more of: a time domain analysis, a frequency domain analysis, and a sequence analysis; and
reverting to the learning mode based on determining that the vibration monitoring beacon is in an unknown state responsive to the comparing.

18. The system of claim 13 , wherein the normal operating signature comprises an elevated velocity in an expected direction of travel and within an expected range of variation.

19. The system of claim 13 , wherein the service location comprises an elevator car door.

20. The system of claim 13 , wherein the installation characteristic signature comprises one or more spikes greater than a threshold level followed by an operating signature in the vibration data.

Assignees

• Otis Elevator Co

Inventors

• Witczak Tadeusz Pawel
• Bogli Craig Drew
• Pahlke Derk Oscar
• Michaelidis Yrinee

Classifications

• B66B13/02

  Door or gate operation (of general application E05F) · CPC title

• B66B5/0037

  Performance analysers · CPC title

• B66B5/0025

  for maintenance or repair · CPC title

• B66B5/0018 Primary

  Devices monitoring the operating condition of the elevator system · CPC title

• B66B5/0031 Primary

  for safety reasons · CPC title