Door closer diagnostics system

Patent metadata

Field	Value
Publication number	US-11397117-B2
Application number	US-202016822600-A
Country	US
Kind code	B2
Filing date	Mar 18, 2020
Priority date	Mar 20, 2019
Publication date	Jul 26, 2022
Grant date	Jul 26, 2022

Abstract

A method and apparatus relating to generating, by at least one motion sensor of a data acquisition device that is mounted to a door having a door closer, motion data indicative of motion as the door is moved from an open position to a closed position, generating, by at least one load cell of the data acquisition device, load data as the door is being opened, analyzing the motion data and load data by a central processing device, determining at least one adjustment to the door closer based on at least one of a duration the door was in each of a plurality of door movement zones, as determined using the motion data, and a force applied to open the door, as determined using the load data, and displaying at least one installation instruction corresponding with the at least one adjustment on a graphical user interface of the central processing device.

First claim

What is claimed is:

1. A method, comprising:
removably coupling a data acquisition device to a door having a door closer, the data acquisition device comprising a housing, and at least one motion sensor and at least one load cell or load transducer mounted within the housing;
generating, by the at least one motion sensor, motion data indicative of motion of the door as the door is moved between an open position and a closed position;
generating, by at the least one load cell or load transducer, mechanical force data associated with movement of the door;
transmitting the motion data and the mechanical force data from the data acquisition device to a central processing device having a graphical user interface separate from the data acquisition device;
analyzing the motion data to determine a duration the door was in each of a plurality of door movement zones between the open position and the closed position;
analyzing the mechanical force data to determine if a force used to open the door satisfies a predetermined criteria, and determining, if the force used to open the door does not satisfy the predetermined criteria, at least one force adjustment to the door closer to adjust the force needed to open the door;
determining at least one adjustment to the door closer for a successful installation of the door closer based on the duration the door was in each of the plurality of door movement zones;
displaying at least one installation instruction corresponding with the at least one adjustment on the graphical user interface of the central processing device; and
removing the data acquisition device from the door.

2. The method of claim 1 , further including:
displaying, if the force used to open the door does not satisfy the predetermined criteria, at least one force adjustment installation instruction corresponding with the at least one force adjustment on the graphical user interface of the central processing device.

3. The method of claim 1 , wherein analyzing the motion data comprises (i) transmitting the motion data from the central processing device to a server and (ii) analyzing the motion data by the server to determine the duration the door was in each of the plurality of door movement zones; and
wherein determining the at least one adjustment to the door closer comprises determining the at least one adjustment by the server.

4. The method of claim 1 , further comprising displaying, on the graphical user interface of the central processing device, a notification indicative of a successful installation of the door closer in response to a determination that no adjustments to the door closer are necessary for a successful installation of the door closer.

5. The method of claim 1 , wherein determining the at least one adjustment comprises determining an adjustment to a main valve of the door closer.

6. The method of claim 1 , wherein determining the at least one adjustment comprises determining an adjustment to a latch valve of the door closer.

7. The method of claim 1 , wherein determining the at least one adjustment comprises determining an adjustment to a spring of the door closer.

8. The method of claim 1 , wherein the plurality of door movement zones comprises a main zone and a latch zone;
wherein determining the at least one adjustment to the door closer comprises determining to loosen a main valve of the door closer in response to determining the duration the door was in the main zone is greater than a first threshold time; and
wherein determining the at least one adjustment to the door closer comprises determining to tighten the main valve in response to determining the duration the door was in the main zone is less than a second threshold time, wherein the first threshold time is greater than the second threshold time.

9. The method of claim 8 , wherein determining the at least one adjustment to the door closer comprises determining to loosen a latch valve of the door closer in response to determining the duration the door was in the latch zone is greater than a third threshold time; and
wherein determining the at least one adjustment to the door closer comprises determining to tighten the latch valve in response to determining the duration the door was in the latch zone is less than a fourth threshold time, and wherein each of the third threshold time and the fourth threshold time is based on the duration the door was in the main zone.

10. The method of claim 9 , wherein each of the third threshold time and the fourth threshold time is proportional to the duration the door was in the main zone.

11. The method of claim 8 , wherein determining the at least one adjustment to the door closer comprises determining to at least one of loosen the main valve or tighten a spring of the door closer in response to determining the door does not move from the open position to the closed position in less than a fifth threshold time, and wherein the fifth threshold time is greater than the first threshold time.

12. The method of claim 1 , wherein determining the at least one adjustment to the door closer comprises determining the at least one adjustment to the door closer based on at least one user-selected installation setting for the door closer.

13. The method of claim 1 , wherein the central processing device is located remote from the data acquisition device.

14. The method of claim 1 , wherein the data acquisition device is mounted for movement with the door, and wherein the central processing device is not mounted for movement with the door.

15. The method of claim 1 , wherein the load cell or load transducer includes a retractable measuring device that is configured to measure force at particular distances from a hinge of the door for various door sizes; and
wherein the analyzing the mechanical force data comprises using the retractable measuring device to measure the force used to open the door for a particular size of the door.

16. The method of claim 1 , wherein the housing is removably coupled to the door by an adhesive.

17. The method of claim 1 , wherein the analyzing the mechanical force data to determine if a force used to open the door satisfies a predetermined criteria comprises analyzing the mechanical force data in each of the plurality of door movement zones.

18. A door closer diagnostics system, comprising:
a door closer secured to a door;
a central processing device; and
a data acquisition device comprising a housing, and at least one motion sensor and at least one load cell mounted within the housing, and wherein the data acquisition device is configured to (i) be removably mounted to the door, (ii) generate, by the at least one motion sensor, motion data indicative of motion of the door as the door is moved between an open position and a closed position, (iii) generate, by the at least one load cell, load data indicative of a force used to open the door from the closed position, (iv) transmit the motion data and the load data to the central processing device, and (v) be removed from the door;
wherein the central processing device is configured to analyze the motion data to (i) determine a duration the door was in each of a plurality of door movement zones between the open position and the closed position, (ii) determine at least one adjustment to the door closer based on the duration the door was in each of the plurality of door movement zones, and (iii) provide at least a first installation instruction corresponding with the at least one adjustment;
wherein the central processing device if further configured to analyze the

Assignees

• Schlage Lock Co Llc

Inventors

• Eickhoff Brian C
• Baumgarte Joseph W
• Eubel Christopher
• Coyle Jonathan

Classifications

• E05Y2400/80

  User interfaces · CPC title

• E05Y2600/56

  Positioning, e.g. re-positioning, or pre-mounting · CPC title

• E05Y2900/132

  Doors · CPC title

• E05Y2400/852

  Sensors · CPC title

• E05Y2600/12

  by manual operation · CPC title