SYSTEMS AND METHODS FOR SENSING BALANCED-ACTION FOR IMPROVING MAMMAL WORK-TRACK EFFICIENCY

• US 20130204545A1
• Filed: 08/08/2012
• Published: 08/08/2013
• Est. Priority Date: 12/17/2009
• Status: Abandoned Application

• Current Assignee: James C. Solinsky
• Original Assignee: James C. Solinsky
• Inventors: Solinsky, James C.
• Application Number:
  US13/570,152
• Publication Number:
  US 20130204545A1
• Time in Patent Office: Days
• US Class Current: 702/44
• CPC Class Codes: G01C 21/005 with correlation of navigation data from several sources, e.g. map or contour matching G01C21/30 takes precedence
• CPC Class Codes: G01C 21/166 Mechanical, construction or arrangement details of inertial navigation systems
• CPC Class Codes: G01L 5/00 Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
• CPC Class Codes: G01P 13/00 Indicating or recording presence, absence, or direction, of movement electric switches H01H; counting moving objects G06M7/00

Abstract

An example system includes one or more sleeves, each configured for attachment to a leg and comprising a pressure sensor, an accelerometer and a magnetometer. A processor processes sensor signals from the pressure sensor, the accelerometer and the magnetometer to estimate action (A) and work (W) using event detections of peak stance and valley swing events associated with leg movement.

Claims

1. A system comprising:

one or more sleeves, each configured for attachment to a leg and comprising a pressure sensor, an accelerometer and a magnetometer;

a processor for processing sensor signals from the pressure sensor, the accelerometer and the magnetometer to estimate action (A) and work (W) using event detections of peak stance and valley swing events associated with leg movement.

2. The system according to claim 1, wherein each sleeve comprises a board to which the pressure sensor, the accelerometer and the magnetometer are affixed.

3. The system according to claim 2, wherein the magnetometer and accelerometer are affixed to a first side of the board and the pressure sensor is affixed to a second, opposite side of the board.

4. The system according to claim 1, wherein each sleeve further comprises a wireless module for communication with the processor to provide for information feedback and systematic information collection for training and medical health assessment.

5. A system comprising:

a first sleeve comprising one or more pressure sensors for continuously sensing leg muscle expansion and contraction;

a processor for processing signals from the sensors to determine aspects of swing phases of a walking gait cycle.

6. The system according to claim 5, wherein the sleeve is configured for sensing expansion and contraction of calf muscles.

7. The system according to claim 5, wherein the sleeve is configured for sensing expansion and contraction of thigh muscles.

8. The system according to claim 5, further comprising:

a second sleeve comprising one or more pressure sensors for continuously sensing leg muscle expansion and contraction,

wherein the processor determines aspects of swing phases of a walking gait cycle by correlating signals from the sensors of both the first and second sleeves.

9. The system according to claim 5, wherein the processor processing signals from the sensors to further determine aspects of stance phases of a walking gait cycle.

10. The system according to claim 9, wherein the processor processes signals from the sensors to determine heel strike.

11. The system according to claim 9, wherein the processor determines aspects of swing and stance phases of a walking gait cycle based in part on a minimum stance foot-step force.

12. The system according to claim 5, wherein the sleeve further comprises a magnetometer and an accelerometer.

13. The system according to claim 12, wherein the processor uses signals from the magnetometer and the accelerometer, used as a gravitometer, to estimate action (A) and work (W).

14. The system according to claim 13, wherein the processor uses the estimated action and work to compute locomotion efficiency.

15. The system according to claim 12, wherein the processor calibrates the pressure sensors, the magnetometer and the accelerometer.

16. The system according to claim 5, wherein the processor compares the determined aspects of swing phases of a walking gait cycle with an action and work-based gait cycle model.

17. The system according to claim 5, wherein the processor compares the determined aspects of swing phases of a walking gait cycle with prior determined aspects of swing phases.

18. The system according to claim 5, further comprising:

a memory storing the determined aspects of swing phases of a walking gait.

19. The system according to claim 5, wherein the sleeve further comprises a wireless transmitter.

20. A system comprising:

a first sleeve comprising one or more pressure sensors for continuously sensing leg muscle expansion and contraction, an accelerometer and a magnetometer;

a processor configured to combine outputs from the pressure sensors, the accelerometer and the magnetometer to estimate foot thrust force (A) as a measurement of ground reaction force,

wherein the processor uses the outputs to identify swing reversal time (T_SwR) and heel strike for proprioception feedback.