Shoe-based analysis system
First Claim
1. An apparatus, comprising:
- a shoe having a sole, the sole having at least a portion of foam replaced with a first self-sensing composite polymeric foam sensor, wherein the composite polymeric foam is configured to have a decrease in electrical resistance when deformed and to generate an electric potential when deformed;
at least two probes disposed in the first self-sensing composite polymeric foam sensor;
a voltage detector coupled to the at least two probes configured to detect the decrease in electrical resistance generated by the first self-sensing composite polymeric foam sensor and configured to detect the electric potential generated by the first self-sensing composite polymeric foam sensor; and
memory storing instructions that, when executed by a controller, cause the controller to;
determine pressure data generated by a first impact event to the first self-sensing composite polymeric foam sensor based on the decrease in electrical resistance, anddetermine force data generated by a second impact event to the first self-sensing composite polymeric foam sensor based on the electric potential generated by the self-sensing composite polymeric foam,the first impact event occurring over a longer time period than the second impact event.
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Accused Products
Abstract
In one example, an apparatus includes a shoe having a sole with at least a portion of foam replaced with a composite polymeric foam, at least one probe disposed in the composite polymeric foam, a voltage detector coupled to the probe that detects voltage data generated by the composite polymeric foam, and a transformation module that converts voltage data generated by the composite polymeric foam in response to deformation events into GRF, acceleration, or pressure data. In another example, a method includes receiving voltage data produced by composite polymeric foam, the composite polymeric foam providing support and padding in the sole of a shoe, converting the voltage data to force data, comparing the force data to a profile, and transmitting, when the force data fails to fall within a threshold of the profile, a feedback signal to a physical feedback device, the feedback signal indicating a difference with the profile.
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Citations
21 Claims
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1. An apparatus, comprising:
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a shoe having a sole, the sole having at least a portion of foam replaced with a first self-sensing composite polymeric foam sensor, wherein the composite polymeric foam is configured to have a decrease in electrical resistance when deformed and to generate an electric potential when deformed; at least two probes disposed in the first self-sensing composite polymeric foam sensor; a voltage detector coupled to the at least two probes configured to detect the decrease in electrical resistance generated by the first self-sensing composite polymeric foam sensor and configured to detect the electric potential generated by the first self-sensing composite polymeric foam sensor; and memory storing instructions that, when executed by a controller, cause the controller to; determine pressure data generated by a first impact event to the first self-sensing composite polymeric foam sensor based on the decrease in electrical resistance, and determine force data generated by a second impact event to the first self-sensing composite polymeric foam sensor based on the electric potential generated by the self-sensing composite polymeric foam, the first impact event occurring over a longer time period than the second impact event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method, comprising:
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receiving, by a voltage detector, voltage data produced by a particular self-sensing composite polymeric foam sensor, the particular self-sensing composite polymeric foam sensor providing support and padding in a sole of a shoe, the voltage data including first data representing a decrease in electrical resistance caused by deformation of the particular self-sensing polymeric foam sensor and second data representing an electric potential generated by the particular self-sensing polymeric foam sensor in response to deformation; converting, by at least one processor, the first data to pressure data; converting, by the at least one processor, the second data to ground reaction force data; and transmitting, responsive to determining that the pressure data fails to fall within a threshold of a first profile by comparing the pressure data to the first profile or to determining that the ground reaction force data fails to fall within a threshold of a second profile by comparing the ground reaction force data to the second profile, a feedback signal to a physical feedback device, the feedback signal indicating in real time a difference with the first profile or with the second profile. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A shoe insert comprising:
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a first self-sensing composite polymeric foam sensor, wherein the composite polymeric foam is configured to have a decrease in electrical resistance when deformed and to generate an electric potential when deformed; at least two probes disposed in the first self-sensing composite polymeric foam sensor; a voltage detector coupled to the at least two probes configured to detect the decrease in electrical resistance generated by the first self-sensing composite polymeric foam sensor and configured to detect the electric potential generated by the first self-sensing composite polymeric foam sensor; and a microcontroller configured to; determine pressure data generated by a first impact event to the first self-sensing composite polymeric foam sensor based on the decrease in electrical resistance, and determine force data generated by a second impact event to the first self-sensing composite polymeric foam sensor based on the electric potential generated by the self-sensing composite polymeric foam, the first impact event occurring over a longer time period than the second impact event. - View Dependent Claims (19, 20, 21)
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Specification