A wearable article, a system, and methods include a structural material configured to enable the wearable article to the worn on a body, a piezoelectric generator, positioned with respect to the structural material in a configuration to be flexed to output a voltage, a data translator, coupled to the piezoelectric generator, configured to output electronic data based on the voltage, and an electronic data storage, coupled to the data translator, configured to store the electronic data from the data translator.

Sports equipment and/or areas of play are provided, comprising a sports equipment or area of play and a sensor.

An article of apparel, a system, and methods include a structural material configured to enable the article of footwear to the worn on a body. A wireless transmission circuit is included and a piezoelectric generator is positioned with respect to the structural material in a configuration to be flexed to induce a voltage signal output. A voltage sensor is configured to sense the voltage profile and output a sensor signal indicative of the voltage profile. An electronic data storage, coupled to the voltage sensor, is configured to store voltage profile information based on the sensor data. A comparator, coupled to the electronic data storage, is configured to identify a change in the voltage profile information over time. The wireless transmission circuit is configured to transmit data indicative of a physical status of the article of footwear based on the change in the voltage profile information over time.

The invention discloses a coupled power generating device, a power-generating insole and a light emitting shoe, the device comprising a column-shaped hollow shell, at least one group of magnetic induction coils that is provided on the outer wall of the column-shaped hollow shell, at least one removable column-shaped magnet that is provided on the inner wall of the column-shaped hollow shell, two triboelectric nano generating units that are provided at both ends of the column-shaped hollow shell. The coupled power generating device has the advantages of long service life, high output current, stable electrical performance and compact size.

The invention discloses a coupled power generating device, a power-generating insole and a light emitting shoe, the device comprising a column-shaped hollow shell, at least one group of magnetic induction coils that is provided on the outer wall of the column-shaped hollow shell, at least one removable column-shaped magnet that is provided on the inner wall of the column-shaped hollow shell, two triboelectric nano generating units that are provided at both ends of the column-shaped hollow shell. The coupled power generating device has the advantages of long service life, high output current, stable electrical performance and compact size.

A footwear system can employ a brake and/or a clutch, such as a one-way clutch, to convert human motion into usable electricity. The brake and one-way clutch can be used together, such as on opposite ends of a spring. During a storage phase, the brake can be engaged and the one-way clutch disengaged so the spring stores an energy. After the storage phase, the brake can be removed to initiate the release phase since the brake is not stopping the spring, but the one-way clutch allows the stored energy to be released.

A footwear system can employ a brake and/or a clutch, such as a one-way clutch, to convert human motion into usable electricity. The brake and one-way clutch can be used together, such as on opposite ends of a spring. During a storage phase, the brake can be engaged and the one-way clutch disengaged so the spring stores an energy. After the storage phase, the brake can be removed to initiate the release phase since the brake is not stopping the spring, but the one-way clutch allows the stored energy to be released.

The invention relates to a sole structure (1) for luminous footwear, comprising a sole (2) and a self-powered luminous device (3) combined with the sole, wherein the luminous device comprises: n light sources (5) with n>2, a piezoelectric system (6) comprising at least one supporting layer (8) and at least one first piezoelectric layer (9) combined with each other, and connecting means (7) to electrically connect the piezoelectric system to the light sources comprising a first electric cable (10) and a second electric cable (11) which have respective first ends (12, 13) electrically connected to the piezoelectric system, wherein n-m light sources (14, 15), with m>1, are arranged in the luminous device with a given electrical polarity, and m light sources (16) are arranged in the luminous device with an opposite electrical polarity with respect to the given electrical polarity, and wherein the luminous device is without electrical battery.

The invention relates to a sole structure (1) for luminous footwear, comprising a sole (2) and a self-powered luminous device (3) combined with the sole, wherein the luminous device comprises: n light sources (5) with n>2, a piezoelectric system (6) comprising at least one supporting layer (8) and at least one first piezoelectric layer (9) combined with each other, and connecting means (7) to electrically connect the piezoelectric system to the light sources comprising a first electric cable (10) and a second electric cable (11) which have respective first ends (12, 13) electrically connected to the piezoelectric system, wherein n-m light sources (14, 15), with m>1, are arranged in the luminous device with a given electrical polarity, and m light sources (16) are arranged in the luminous device with an opposite electrical polarity with respect to the given electrical polarity, and wherein the luminous device is without electrical battery.

A shoe energy collecting device includes a shell, a piezoelectric assembly, an elastic component, a magnet array, a base, a supporting block, an upper friction assembly and a lower friction assembly. The shell includes a supporting shell and a plastic shell connected in sequence. The base is provided below the supporting block in the supporting shell, the lower friction assembly is provided between the supporting block and the base. The upper friction assembly is provided on an inner wall of a top surface of the plastic shell. A coil is provided on a lower surface of the lower friction assembly at a side of the plastic shell, and the magnet array is provided below the coil. The piezoelectric assembly is provided in the plastic shell, the elastic component is provided on a side wall of the plastic shell away from the supporting block, and connected with the piezoelectric assembly.