Motorized skating systems and methods for controlling the systems are disclosed. One exemplary system may include a primary skate and a secondary skate. The primary skate may include a sensor configured to detect a tilting signal. The primary skate may also include a first processor. The processor may be configured to determine a first control signal for moving the primary skate based on the tilting signal and determine a motion signal for moving the secondary skate based on the first control signal. The primary skate may further include a first communication interface configured to send the motion signal to the secondary skate. The secondary skate may include a second communication interface configured to receive the motion signal from the first communication interface. The secondary skate may also include a second processor configured to determine a second control signal for moving the secondary skate based on the received motion signal.

A four-wheel sensor controlled vehicle having a base and a control box installed with a battery and a control panel; two driving wheels are installed at the bottom surface of the base close to the front edge of the base, and two universal wheels are installed at the bottom surface of the base close to the rear edge of the base. The driving wheel has a hub assembled with a hub motor assembly of a motor. The base is installed with four weighing sensors at four corners, the first weighing sensor and the third weighing sensor respectively correspond to the fore sole and rear sole of the left foot, the second weighing sensor and the fourth weighing sensor respectively correspond to the fore sole and the rear sole of the right foot. The control panel is connected with the motor and the weighing sensors.

Articles of clothing include modules for sensing physical and/or physiological characteristics associated with use of the clothing or for performing other functions. Such clothing systems and methods may use physical or other interaction(s) between the module and the article of clothing for activating and/or deactivating the module and/or sensing devices included with the module, for example, to confirm whether the module and clothing are authorized for use with one another, and/or for automatic data algorithm selection methods. Additionally, such systems and methods also may sense interactions between the module and a module securing element of the clothing to determine characteristics associated with the clothing.

A method and system for use in the game of football to determine ball placement and position, as well as first down demarcations, is described, with various embodiments configured to track the location of a football to determine its position on the field and to determine and display the first down demarcation on the field. Certain embodiments employ software to assist in performing placement determinations, distance determinations, track movement of the ball, first down markers, as well as light emitting modules along a track that extends parallel to the field.

Methods, devices and computer systems utilize ground penetrating radar (GPR) embedded in or mounted on a ski or other equipment that is in contact with the snow during use device in order to obtain snow profile data from layers of snow or ice. A GPR device may include a trained model capable of deriving snow profile information based on GPR data and may also be capable of uploading GPR data to an online service. The online service can use the received GPR data to derive snow profile information, distribute snow profile information to user devices, and generate and distribute updated trained models. The online service may access online repositories of additional information and refine the snow profile information or the trained model based on such addition information. Generated snow profile information can be used to provide avalanche risk assessments.

The present disclosure comprises a novel system that attaches to skis in an alpine touring setup and provides electric, battery powered, motorized traction that assists the skier when traveling uphill or horizontal on snow. In one embodiment, the devices removably attach to the ski near the tail and have a cylindrical traction surface that sits below the ski near the tail. The traction surface is powered by an electric hub motor which engages, either with initiation of forward movement, input from sensors, or a set programmed cadence, thereby assisting the user's moving, unweighted ski forward until the completion of that step. Once arrived at the desired destination, or when downhill travel is warranted, the user removes and stores the devices from each ski and proceeds downhill.

A method for the continuous ranking of a competitor during a race of a slalom skiing type sports discipline includes the following iterative steps: a step of measuring the variation in the lateral angle of the gliding board about a predefined axis, a step of detecting the moment when the angle passes through a predefined value, a step of recording the competitor's run time corresponding to the detected moment, a step of comparing the stored run time with those of the preceding competitors for the corresponding detected moment, and a step of ranking the competitor with respect to the preceding competitors as a function of the run time of each competitor. A ranking system implements the method.

A system for control of a mobility device comprising a controller for analyzing data from at least one sensor on the mobility device, wherein the data is used to determine the gait of user. The gait data is then used to provide motion command to an electric motor on the mobility device.

The disclosure relates to a skateboard and control method thereof. A skateboard deck is fixed on an axle of the skateboard, and a first sensor group and a second sensor group are sequentially arranged on the skateboard deck in a width direction. The method includes acquiring a first pressure value of the first sensor group and a second pressure value of the second sensor group; controlling the skateboard to turn to a first direction when the first pressure value is greater than the second pressure value and a difference value between the first pressure value and the second pressure value is greater than a first threshold, and controlling the skateboard to turn to a second direction when the second pressure value is greater than the first pressure value and a difference value between the second pressure value and the first pressure value is greater than a second threshold.

An asymmetrically shaped handheld controller and harness assembly for securing safety accessories to the handheld controller for electric personal mobility devices (EPMDs), and a kit thereof, generally includes an asymmetrically shaped handheld controller, an adjustable and a flexible strap that is perforated along its length, releasable connectors that secure the flexible strap about the controller, and headlight and taillight assemblies. The flexible strap conforms to at least three sides of the controller and has an oblong aperture sized to allow access through the strap to a thumb control on the controller. Stabilizing side members may connect accessories including horns, bells, and mirrors to the flexible strap. The controller is configured to wirelessly connect to EPMDs. The taillight operates as a brake light.