A body state estimation system includes a sensor module that detects an inclination around a certain axis of a shoe, and an estimation unit that estimates an inclination state of the body of a wearer of the shoe based on a detection result from the sensor module. The estimation unit estimates, for example, a heel valgus angle, an ankle dorsiflexion angle, and a knee flexion angle of the wearer, using a regression model.

A body state estimation system includes a sensor module that detects an inclination around a certain axis of a shoe, and an estimation unit that estimates an inclination state of the body of a wearer of the shoe based on a detection result from the sensor module. The estimation unit estimates, for example, a heel valgus angle, an ankle dorsiflexion angle, and a knee flexion angle of the wearer, using a regression model.

An insole for controlling and adjusting the temperature of the foot. The insole includes a first heat conductive layer made of fabric, a second heat insulating layer comprising a Peltier cell. The Peltier cell includes a first surface and has a predetermined polarity such that, when the Peltier cell is on, the first surface is heated or cooled. A third heat dissipating layer includes an accelerometer and a logic control unit connected to the accelerometer and to the Peltier cell. The insole further includes a first flexible printed circuit configured to measure the temperature of the foot, through at least a first temperature sensor and the temperature of the first surface of the Peltier cell, through a further first temperature sensor.

A shoe and a method for controlling the shoe are provided. The shoe includes a vamp and a sole. The vamp is coupled to the sole, and the vamp and the sole form cooperatively a shoe chamber receiving a foot of a wearer. The shoe further includes a controller and, a communication unit, which are arranged on the vamp or the sole, and a first pressure sensor arranged on the vamp. The controller is electrically connected with the communication unit and the pressure sensor. The first pressure sensor is operated to detect a pressure on a preset area of the vamp, and output corresponding pressure data to the controller. The shoe is communicated with a user terminal device by the communication unit. The user terminal device is operated to display the pressure on the preset area of the vamp according to the pressure data.

A cooling and ventilation device (10), a cooling hat (20), a cooling shoe and a cooling backpack. The cooling and ventilation device (10) comprises: a housing (100), a ventilation assembly (200), a heat conduction frame (300) and a cooling assembly (400). Two ends of the housing (100) are respectively provided with an air inlet (110) and an air outlet (120). The ventilation assembly (200) is arranged at the position of the air inlet (110), and is used for bringing air into the housing (100). The heat conduction frame (300) is arranged within the housing (100). The cooling assembly (400) comprises semiconductor cooling plates (410) and heat conduction film layers (420), the semiconductor cooling plates (410) being arranged on the heat conduction frame (300), the heat conduction film layers (420) being attached to the side surfaces of the semiconductor cooling plates (410) away from the heat conduction frame (300). When the semiconductor cooling plates (410) are turned on, the sides of the semiconductor cooling plates (410) connected to the heat conduction film layers (420) are cooling ends, and heat in the air entering from the external environment can be absorbed by the heat conduction frame (300) in a rapid and timely manner. Thus, a cooling operation is performed on the air entering from the external environment in a rapid and timely manner, thereby ensuring that an airflow discharged from the air outlet (120) is a cold airflow.

An article of footwear with an upper and a sole. The upper has a flap portion while the sole has a lip portion. The flap portion of the upper is configured to removably attach to the lip portion of the sole, allowing a user to wear the article of footwear in a closed or open orientation.

An article of footwear with an upper and a sole. The upper has a flap portion while the sole has a lip portion. The flap portion of the upper is configured to removably attach to the lip portion of the sole, allowing a user to wear the article of footwear in a closed or open orientation.

A kit includes a pair of items of footwear; wherein each item of footwear includes a brace that is arranged to be releasably secured to at least part of a wearer's leg and/or foot; a platform that is operably connected to the brace; and a securing mechanism for releasably securing a balancing member, or a stack of balancing members, underneath the platform. The kit includes balancing members for each item of footwear so that one balancing member can be replaced with another balancing member that has a smaller ground-contacting area, or so that it can have another balancing member with a smaller ground-contacting area stacked underneath it.

A kit includes a pair of items of footwear; wherein each item of footwear includes a brace that is arranged to be releasably secured to at least part of a wearer's leg and/or foot; a platform that is operably connected to the brace; and a securing mechanism for releasably securing a balancing member, or a stack of balancing members, underneath the platform. The kit includes balancing members for each item of footwear so that one balancing member can be replaced with another balancing member that has a smaller ground-contacting area, or so that it can have another balancing member with a smaller ground-contacting area stacked underneath it.

This specification describes a transducer configured to convert electrical signals into vibrational movement. The transducer comprises an axially-magnetised reciprocating magnet, wherein the axially-magnetised reciprocating magnet comprises an aperture such that the reciprocating magnet has an inner boundary and an outer boundary.

The transducer further comprises at least two pairs of concentrically positioned electromagnetic solenoids, the at least two pairs of concentrically positioned electromagnetic solenoids being configured to drive the reciprocating magnet to reciprocate in a volume above and below the reciprocating magnet. The first solenoid of each of the pairs of concentrically positioned electromagnetic solenoids is positioned to influence the reciprocating magnet at the inner boundary more than at the outer boundary, and a second solenoid of each of the pairs of concentrically positioned electromagnetic solenoids is positioned to influence the reciprocating magnet at the outer boundary more than at the inner boundary. The reciprocating magnet is suspended in the mid-point of its axial travel at a null position using either mechanical springs or magnetic springs.