Image recognition for personal protective equipment compliance enforcement in work areas

Patent metadata

Field	Value
Publication number	US-9695981-B2
Application number	US-201213452596-A
Country	US
Kind code	B2
Filing date	Apr 20, 2012
Priority date	Apr 20, 2012
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A method comprises receiving one or more images of a person from one or more image capture devices in response to an input, identifying one or more items of personal protective equipment in the one or more images, determining the positioning of the one or more items of personal protective equipment relative to the person in the one or more images, and verifying compliance with personal protective equipment standards based on the one or more identified items of personal protective equipment and the positioning of the one or more items of personal protective equipment.

First claim

What is claimed is:

1. A personal protective equipment compliance system comprising:
a location device;
an access device configured to deny access to a work area unless the access device receives a compliance verification signal indicative of compliance with one or more personal protective equipment standards;
an image capture device;
a memory comprising a non-transitory, computer readable media;
a processor; and
an image recognition processing tool that, when executed by the processor, configures the processor to:
determine a location of a person based on a signal from the location device;
direct one or more image capture devices to the location of the person by one or more of the following: panning, tilting, zooming;
receive one or more images from the image capture device;
detect one or more items of personal protective equipment within the one or more images;
detect the positioning of the one or more items of personal protective equipment on a person within the one or more images when the one or more items of personal protective equipment are detected;
identify the type of the one or more items of personal protective equipment when the one or more items of personal protective equipment are detected;
verify compliance with the one or more personal protective equipment standards based on the positioning of the one or more items of personal protective equipment and the type of the one or more items of personal protective equipment; and
send the compliance verification signal indicative of the compliance verification to the access device;
wherein the access device is further configured to, in response to receiving the compliance verification signal, grant access to the work area;
wherein the location device is separate and apart from the one or more image capture devices.

2. The personal protective equipment compliance system of claim 1 , wherein the image recognition processing tool, when executed by the processor, further configures the processor to:
send an alert to an output device when compliance with the personal protective equipment standards is not verified, wherein the message comprises information on the personal protective equipment standards; and
store information related to the compliance verification in at least one of an access log or a compliance log.

3. The personal protective equipment compliance system of claim 1 , wherein one or more items of personal protective equipment comprise at least one item selected from the group consisting of: glasses, goggles, an ear plug, ear muffs, a face mask, a respirator, a hair net, a hard hat, a wrist band, gloves, a skirt, a gown, an apron, shoes, boots, a safety harness, a safety suit, a chemical suit, and any combinations thereof.

4. The personal protective equipment, compliance system of claim 1 , wherein identify the type of the one or more items of personal protective equipment comprises:
identifying the kind of the one or more items of personal protective equipment; and
identifying at least one of the type or a sub-type of the one or more items of personal protective equipment.

5. The personal protective equipment compliance system of claim 1 , wherein the image capture device comprises a spectral camera, color video camera or infrared camera.

6. The personal protective equipment compliance system of claim 1 , wherein identify the type of the one or more items of personal protective equipment comprises:
identify one or more coded markings associated with the one or more items of personal protective equipment, wherein the one or more coded markings comprise at least one of a color code pattern, a color-symbol pattern, an asymmetrical pattern, a one dimensional bar code, a standard bar code, a two dimensional bar code, a shot code, a SEMACODE, or a color light pattern.

7. The personal protective equipment compliance system of claim 6 , wherein the one or more coded markings are formed from at least one of an infrared (IR) reflective coating, IR absorptive coating, an ultraviolet (UV) reflective coating, or a UV absorptive coating.

8. The personal protective equipment compliance system of claim 7 , wherein the personal protective equipment comprises glasses or goggles, and wherein the one or more coded markings are located on one or more lenses of the glasses or goggles.

9. The personal protective equipment compliance system of claim 1 , wherein receive one or more images comprises receiving a set of images and ranking each image of the set according to confidence level.

10. The personal protective equipment compliance system of claim 9 , wherein receive one or more images from an image capture device comprises retrieving a plurality of images from a circular storage buffer, and wherein the plurality of images are received from a plurality of image capture devices which have each been directed to the location of the person.

11. The personal protective equipment compliance system of claim 9 , wherein detect the positioning of the one or more items of personal protective equipment comprises analyzing the set of images and weighting or averaging the set of images to prevent false positives or false negatives.

12. The personal protective equipment compliance system of claim 1 , wherein detect the positioning of the one or more items of personal protective equipment comprises extracting one or more portions of the one or more images and using a background modeling/removal routine.

13. A personal protective equipment compliance system comprising:
a trigger device, wherein the trigger device is an entry way device located at an entry way to a work area;
an image capture device;
a memory comprising a non-transitory, computer readable media;
a processor; and
an image recognition processing tool that, when executed by the processor, configures the processor to:
receive a trigger signal from the trigger device;
receive one or more images from the image capture device in response to receiving the trigger signal;
detect one or more items of personal protective equipment within the one or more images;
detect the positioning of the one or more items of personal protective equipment on a person within the one or more images when the one or more items of personal protective equipment are detected;
identify the type of the one or more items of personal protective equipment when the one or more items of personal protective equipment are detected;
verify compliance with one or more personal protective equipment standards at the entry way to the work area based on the positioning of the one or more items of personal protective equipment and the type of the one or more items of personal protective equipment; and
send an output signal indicative of the compliance verification;
wherein a piece of equipment is configured to, in response to an access device for the piece of equipment receiving the output signal, activate;
wherein the piece of equipment is that to which the personal protective equipment relates to for protective purposes; and
wherein the trigger device is separate and apart from the one or more image capture devices.

14. The personal protective equipment compliance system of claim 13 , wherein the access device comprises a lock-out feature.

15. The personal protective equipment compliance system of claim 13 , wherein receive one or more images from an image capture device comprises retrieving the one or more images from a circular storage buffer.

16. The personal protective equipment compliance system of claim 15 , wherein the one or more images comprise at least one image obtained prior to activation

Assignees

• Au Kwong Wing
• Davalos Pedro
• Venkatesha Sharath
• Khurana Himanshu
• Bedros Saad J
• Mohideen Mohammed Ibrahim
• Gellaboina Mahesh Kumar
• Cs Adishesha
• Cabuz Cleopatra
• Honeywell Int Inc

Inventors

• Au Kwong Wing
• Davalos Pedro
• Venkatesha Sharath
• Khurana Himanshu
• Bedros Saad J
• Mohideen Mohammed Ibrahim
• Gellaboina Mahesh Kumar
• Cs Adishesha
• Cabuz Cleopatra

Classifications

• G06V40/10

  Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands · CPC title

• G06V20/52

  Surveillance or monitoring of activities, e.g. for recognising suspicious objects (recognising microscopic objects G06V20/69) · CPC title

• G07C9/38

  with central registration · CPC title

• F16P3/142 Primary

  using image capturing devices · CPC title

• G08B21/02

  Alarms for ensuring the safety of persons · CPC title