IP Library Granted Patent US 10,885,768
Granted Patent B2
US 10,885,768 · App. 15/893,829 · Granted Jan 5, 2021

Systems and methods for measuring performance of site maintenance

Inventors: Daniel P. Longhenry (Bloomington, MN); Mark Steven Citsay (Lake Elmo, MN); Daniel Messer (Golden Valley, MN)
Assignee: Tennant Company
G08B25/10A47L11/00A47L13/00G01C21/10G01C21/206G01S1/022G06Q10/0639G06Q10/06398G06Q10/087H04W4/027H04W4/30H04W4/33H04W4/38G06Q10/20
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Quick Facts
Patent No.
US 10,885,768
App. No.
15/893,829
Granted
Jan 5, 2021
Kind
B2
Abstract

Systems and methods for detecting a site maintenance operation done by a maintenance device are described. At least one motion sensor and at least one localization sensor can each be operatively coupled to the maintenance device to detect one or more motion parameters of the maintenance device via the motion sensor and the localization sensor. The maintenance device can be localized (e.g., its position located) on the indoor map. A movement of the maintenance device can be characterized and/or tracked on the indoor map. A motion map can be displayed to illustrate (e.g., visually represent) the characterized movement. An offsite computer can be used to determine whether the site maintenance operation has commenced at the indoor location, measure one or more maintenance parameters of the site maintenance operation and/or compare the one or more maintenance parameters to predetermined benchmark parameters to determine whether the site maintenance operation has been completed.

Claims (55)

1. A method of detecting a site maintenance operation, comprising:

providing a localization system operatively coupled to a maintenance device;

detecting, via the localization system, a localization of the maintenance device;

identifying a type of the maintenance device;

tracking a movement of the maintenance device based on the detected localization; and

determining whether the site maintenance operation is performed based on the tracked movement being indicative of performance of the site maintenance operation for the type of maintenance device identified, the tracked movement being indicative of performance of the site maintenance operation for the type of maintenance device identified when the maintenance device has a first value of a first motion parameter that is different than a second value of the first motion parameter, the second value of the first motion parameter being associated with maintenance device movement without performing the site maintenance operation.

2. The method of claim 1 , further comprising, detecting one or more motion parameters via the localization system, and determining whether the site maintenance operation is performed based on the one or more motion parameters.

3. The method of claim 1 , wherein the localization system is provided on a mobile computer located in proximity to the maintenance device.

4. The method of claim 3 , wherein the mobile computer is a wearable computer worn by an operator.

5. The method of claim 4 , wherein the maintenance device comprises electronic circuits having identifying information of the maintenance device stored thereon.

6. The method of claim 5 , further comprising:

providing the maintenance device, the maintenance device being locatable on an indoor map of an indoor location, and

electronically connecting the electronic circuits of the maintenance device to the mobile computer, whereupon the identifying information of the maintenance device is read by the mobile computer and transmitted to the offsite computer to permit the offsite computer to recognize the maintenance device on the indoor map.

7. The method of claim 6 , further comprising locating of the maintenance device in the indoor location using at least one of the following:

the localization system and wireless communication networks connectable wirelessly to the mobile computer;

cellular trilateration;

magnetic signature of the building; and/or

dead reckoning.

8. The method of claim 6 , further comprising, electronically connecting the electronic circuits of the maintenance device to the mobile computer only when an activation circuit provided on at least one of the maintenance device and the mobile computer is activated.

9. The method of claim 8 , wherein, an electronic connection between the electronic circuits of the maintenance device and the mobile computer comprises a wireless connection between the electronic circuits and the mobile computer.

10. The method of claim 1 , further comprising:

characterizing a movement of the maintenance device based on the detected localization;

tracking the characterized movement of the maintenance device on an indoor map over time; and

displaying a motion map, the motion map comprising the characterized movement correlated to the indoor map;

wherein determining whether the site maintenance operation is performed is based on the characterized movement being indicative of performance of the site maintenance operation for the type of maintenance device identified, and

wherein characterizing the movement of the maintenance device comprises using one or more of speed, direction of travel, and number of repetitions of motion and one or more of longitude, latitude, altitude, and barometric pressure.

11. The method of claim 1 , wherein determining whether the maintenance device is traveling in a characteristic pattern of motion includes using parameters being measured by at least one of: inertial measurement unit, compass, and magnetometer.

12. The method of claim 1 , wherein the tracked movement indicative of performance of the site maintenance operation for the type of maintenance device identified is serpentine movement.

13. The method of claim 1 , wherein the maintenance device is a mobile site maintenance machine comprising:

one or more wheels for traveling in the indoor location, and

at least one site maintenance tool, wherein the motion sensor is provided onboard on the mobile site maintenance machine.

14. A method of detecting a site maintenance operation, comprising:

providing a maintenance device, the maintenance device being locatable on an indoor map of an indoor location;

providing a localization system operatively coupled to the maintenance device;

detecting, via the localization system, a localization of the maintenance device on the indoor map; and

determining whether the maintenance device is traveling in a characteristic pattern of motion in a portion of the indoor location, the characteristic pattern of motion being indicative of performance of a first site maintenance operation for an identified type of maintenance device, the characteristic pattern of motion being indicative of performance of the first site maintenance operation for the identified type of maintenance device when the maintenance device has a first value of a first motion parameter that is different than a second value of the first motion parameter that is associated with maintenance device travel without performing the first site maintenance operation.

15. The method of claim 14 , wherein the characteristic pattern of motion indicative of a first site maintenance operation is serpentine movement.

16. The method of claim 14 , wherein the maintenance device is a mobile site maintenance machine comprising:

one or more wheels for traveling in the indoor location, and at least one site maintenance tool,

wherein a motion sensor is provided onboard on the mobile site maintenance machine.

17. The method of claim 14 , wherein the localization system is provided on a mobile computer located in proximity to the maintenance device.

18. The method of claim 14 , wherein the maintenance device comprises electronic circuits having identifying information of the maintenance device stored thereon.

19. The method of claim 18 , further comprising electronically connecting the electronic circuits of the maintenance device to the mobile computer, whereupon the identifying information of the maintenance device is read by the mobile computer and transmitted to the offsite computer to permit the offsite computer to recognize the maintenance device on the indoor map.

20. The method of claim 14 , further comprising displaying a motion map, the motion map comprising the characterized movement correlated to the indoor map, wherein characterizing the movement of the maintenance device comprises using one or more of speed, direction of travel, and number of repetitions of motion and one or more of longitude, latitude, altitude, and barometric pressure.

21. A method of detecting a site maintenance operation, comprising:

providing a maintenance device, the maintenance device being locatable on an indoor map of an indoor location;

providing a localization system operatively coupled to the maintenance device;

detecting, via the localization system, a localization of the maintenance device on the indoor map;

identifying a type of the maintenance device;

tracking a movement of the maintenance device based on the detected localization; and

determining whether the site maintenance operation is performed based on the tracked movement being indicative of performance of the site maintenance operation for the type of maintenance device identified,

wherein the maintenance device is a mobile site maintenance machine comprising:

one or more wheels for traveling in the indoor location, and

at least one site maintenance tool,

wherein a motion sensor is provided onboard on the mobile site maintenance machine.

Assignments (2)
SECURITY INTEREST Recorded Apr 12, 2021
From: TENNANT COMPANY
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 055892/0985 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2018
From: LONGHENRY, DANIEL P.; CITSAY, MARK STEVEN; MESSER, DANIEL
To: TENNANT COMPANY
Reel/Frame 045344/0072 →
Continuity (1)
Related Publication 20190251832A1 · Aug 15, 2019
Cited By (1)
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