System and method for monitoring the gait characteristics of a group of individuals

• US 8,460,220 B2
• Filed: 12/18/2009
• Issued: 06/11/2013
• Est. Priority Date: 12/18/2009
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Cuddihy, Paul Edward
• Primary Examiner(s): HINDENBURG, MAX F
• Application Number:
  US12/641,481
• Publication Number:
  US 20110152726A1
• Time in Patent Office: 1,271 Days
• Field of Search: 600/587, 600/595
• US Class Current: 600/595
• CPC Class Codes: A61B 5/112 Gait analysis
• CPC Class Codes: A61B 5/1128 using image analysis A61B5/1127 takes precedence
• CPC Class Codes: G06V 40/172 Classification, e.g. identification
• CPC Class Codes: G06V 40/25 Recognition of walking or running movements, e.g. gait recognition

Abstract

A system is provided for monitoring gait characteristics of a group of enrollees in a monitoring region of a public area. The system includes an identifying device to enroll the group of enrollees into the system by measuring identifying information. The system further includes a gait monitoring device to measure a sample gait characteristic during an enrollment phase, and to measure a gait characteristic of each enrollee subsequent to the enrollment phase. The system further includes an alerting device to receive an alert signal from the gait monitoring device, when the measured gait characteristic of a respective enrollee exceeds a safety threshold. The system further includes a display device to issue a trend report of the measured gait characteristic of a selectable enrollee for a selectable time period.

Claims

1. A system for monitoring gait characteristics of one or more enrollees in a monitoring region of a public area, said system comprising:

an identifying device comprising a video camera positioned in the monitoring region of the public area, wherein the identifying device is configured to;

automatically prompt a potential enrollee having entered the monitoring region of the public area to provide consent for monitoring the enrollee in the monitoring region, and

enroll the enrollee on receiving the enrollee'"'"'s consent, said enrolling including automatically prompting the enrollee to move to a designated location in the monitoring region of the public area to acquire identifying information of the enrollee during an enrollment phase and automatically prompting the enrollee to move in monitoring region within a field of view of the video camera to measure a sample gait characteristic of the enrollee during the enrollment phase; and

acquire identifying information of one or more individuals having entered the monitoring region during a monitoring phase subsequent to the enrollment phase;

a processor configured to identify the enrollee from the one or more individuals in the monitoring region by comparing the acquired identifying information of the one or more individuals in the monitoring region with the acquired identifying information of the enrollee during the enrollment phase to determine if one of the individuals is the enrollee; and

a gait monitoring device configured to measure the sample gait characteristic of the enrollee during the enrollment phase;

said gait monitoring device being further configured to measure a gait characteristic of the enrollee during the monitoring phase, if the processor identifies that one of the individuals is the enrollee;

wherein said processor is further configured to compare the measured gait characteristic of the enrollee with at least one of a previously-measured gait characteristic and the sample gait characteristic of the enrollee, to determine if the measured gait characteristic exceeds a safety threshold.

2. The system of claim 1, further comprising:

an alerting device configured to receive an alert signal from said gait monitoring device, said alert signal based on the measured gait characteristic of the enrollee having exceeded the safety threshold; and

a display device configured to receive said measured gait characteristic data and the enrollee'"'"'s identifying information of said measured gait characteristic from said gait monitoring device;

said display device further configured to issue a trend report of the measured gait characteristic of a selectable enrollee for a selectable time period.

3. The system of claim 2, wherein the identifying device includes a video camera;

wherein during said enrollment phase, said enrollee is prompted to position the enrollee'"'"'s face in a field of view of the video camera to capture an image of the face as said identifying information;

wherein said identifying information is stored in a memory of said processor.

4. The system of claim 2, wherein said gait monitoring device comprises a sensing component, said sensing component being configured to detect the gait characteristic of the one or more individuals, said sensing component configured to detect said sample gait characteristic of the enrollee during the enrolment phase;

wherein said sample gait characteristic for each respective enrollee is stored within a memory of said processor.

5. The system of claim 4, wherein upon an individual having entered the monitoring area, said video camera is configured to capture an image of the individual'"'"'s face, and is configured to compare the captured face image with stored face images of enrollees in the memory of the processor;

wherein said identifying device is configured to transmit an activate signal to the gait monitoring device if the captured face image corresponds to a stored face image of the enrollee, such that upon receiving the activate signal, said gait monitoring device is configured to measure and store a gait characteristic of the individual moving through the monitoring area, and transmit the measured gait characteristic and identifying information to the display device, and transmit an alert signal to the alert device, in the event that the measured gait characteristic exceeds the safety threshold.

6. The system of claim 5, wherein said identifying device is configured to take no action if the captured face image does not correspond to a stored face image of the enrollee, and thus the gait monitoring device does not measure the gait characteristic of the individual moving through the monitoring area.

7. The system of claim 4, wherein said sensing component incorporates at least one of LIDAR, video, radar, active infrared, and smart floor technology.

8. The system of claim 2, wherein the display device is configured to output the trend report of the measured gait characteristics for the enrollee for a selectable time period based on the received alert signal at the alerting device, including a measured gait characteristic exceeding the safety threshold and the enrollee'"'"'s identifying information to diagnose any future complications of the enrollee.

9. The system of claim 1, wherein said monitoring area of the public area is a hallway where said enrollees frequently pass through on a routine basis.

10. The system of claim 1, wherein said monitoring area of the public area is a hallway in a senior assisted-living facility;

and wherein said alert signal and trend reports are utilised to forecast an oncoming risk of falling.

11. The system of claim 1, wherein an existing video camera is provided in the public area, such that the identifying device is a redundant video camera in the public area.

12. A system for monitoring gait characteristics of one or more enrollees, said system comprising:

an identifying device positioned in a monitoring region of a public area, said identifying device configured to;

automatically prompt a potential enrollee having entered the monitoring region of the public area to provide consent for monitoring the enrollee in the monitoring region,

enroll the enrollee on receiving the enrollee'"'"'s consent, said enrolling including automatically prompting the enrollee to move to a designated location in the monitoring region of the public area to capture corresponding facial recognition data and automatically prompting the enrollee to move within the monitoring region for measuring a sample gait characteristic of the enrollee;

a processor configured to identify the enrollee from one or more individuals having entered the monitoring region by comparing the captured facial recognition data with a predetermined set of facial recognition data for the one or more enrollees to determine if one of the individuals is the enrollee;

a gait monitoring device positioned in the monitoring area of the public area, said gait monitoring area configured to measure the sample gait characteristic of the enrollee, if the processor determines that one of the individuals is the enrollee;

said processor being further configured to compare the sample gait characteristic with at least one of a previously-measured gait characteristic and a predetermined set of sample gait characteristic for the enrollee to determine if the measured gait characteristic exceeds a safety threshold.

13. The system of claim 12, further comprising:

an alerting device positioned in the monitoring area of the public area, said alerting device configured to receive an alert signal from said gait monitoring device, said alert signal being indicative of the measured gait characteristic of the enrollee having exceeded the safety threshold; and

a display device positioned in the monitoring area of the public area, said display device configured to receive and store said measured gait characteristic data for the enrollee, said display device further configured to issue a trend report of the measured gait characteristic of a selectable enrollee for a selectable time period.

14. The system of claim 12, wherein said monitoring area in the public area is a hallway of a medical treatment facility, through which the enrollees pass through on a routine basis.

15. The system of claim 14, wherein said monitoring area in the public area is a hallway in a senior assisted-living facility, through which the enrollees pass through on a routine basis, and wherein said alert signal and trend report is utilised to reduce a future likelihood of falling of the enrollees within the senior assisted living facility.

16. The system of claim 12, wherein said identifying device includes a video camera and a processor;

wherein during an enrollment phase, said predetermined set of facial recognition data for the one or more enrollees is captured by the video camera by prompting each enrollee to position the enrollee'"'"'s face in a field of view of the video camera to capture the facial recognition data;

wherein said facial recognition data of each enrollee is stored in a memory of said processor.

17. A method for monitoring gait characteristics of one or more enrollees in a monitoring region of a public area, said method comprising:

automatically prompting a potential enrollee having entered the monitoring region of the public area to provide consent for monitoring of gait characteristics in the monitoring region;

enrolling the enrollee on receiving the enrollee'"'"'s consent, said enrolling including automatically prompting the enrollee to move to a designated location in the monitoring region of the public area for measuring identifying information of the enrollee during an enrollment phase and automatically prompting the enrollee to move within the monitoring region for measuring a sample gait characteristic of the enrollee during the enrollment phase;

monitoring one or more individuals having entered the monitoring region to acquire corresponding identifying information;

identifying the enrollee from the one or more individuals by comparing the identifying information of the enrollee with the identifying information of the one or more individuals in the monitoring region with the acquired identifying information of the enrollee during the enrollment phase;

measuring a gait characteristic of the enrollee upon identifying that one of the individuals is the enrollee;

comparing the measured gait characteristic of the enrollee with at least one of a previously-measured gait characteristic and the sample gait characteristic of the enrollee, to determine if the measured gait characteristic exceeds a safety threshold and alerting if the measured gait characteristic of the enrollee has exceeded a safety threshold; and

displaying a trend report of the measured gait characteristic of the enrollee for a selectable time period, wherein displaying a trend report comprises selecting the enrollee from the one or more enrollees.