A collision sensor assembly is attachable to a stationary structure such as a pallet rack, a door frame, the corner of a wall, or the like. The collision sensor is configured to sense when a collision occurs with the stationary structure such as when a piece of movable machinery contacts the stationary structure. The collision sensor assembly includes a sensor operatively connected to a processor which determines when a collision occurs, and produces a signal to an output signal generator to provide an external indication of the collision.

Embodiments provide physiological measurement systems, devices and methods for continuous health and fitness monitoring. A wearable strap may detect reflected light from a user's skin, where data corresponding to the reflected light is used to automatically and continually determine a heart rate of the user. The wearable strap may include a motion sensor that is used to determine a motion status of the user. Based upon the motion status of the user, the system may activate light emitters on the wearable strap to determine the heart rate of the user.

Training at the proper level of effort is important for athletes whose objective is to achieve the best results in the least time. In running, for example, pace is often monitored. However, pace alone does not reveal specific issues with regard to running form, efficiency, or technique, much less inform how training should be modified to improve performance or fitness. A sensing system and wearable sensor platform described herein provide real-time feedback to a user/wearer of his power expenditure during an activity. In one example, the system includes an inertial measurement unit (IMU) for acquiring multi-axis motion data at a first sampling rate, and an orientation sensor to acquire orientation data at a second sampling rate that is varied based on the multi-axis motion data.

A wireless-speaker includes an audio playback module mounted in an interior portion of a housing; a sensor package mounted in the interior portion of the housing, and including an accelerometer to detect motion of the wireless speaker and to generate sensor data corresponding to the detected motion; and a wireless communication transceiver configured to receive audio content from an external device over a wireless communication channel for playback by the audio module, and to receive sensor data from the sensor package for transmission to the external device.

In one embodiment, a method includes receiving, from one or more sensors, biomechanical data of a first user performing a plurality of actions of a first action-type and outcome data of a plurality of outcomes corresponding to the respective plurality of actions. A plurality of sets of action-parameter values may be determined based on the received biomechanical data, where each of the sets of action-parameter values corresponds to a respective action of the plurality of actions. An athletic-performance model of the first user may be generated based on the plurality of sets of action-parameter values. The athletic-performance model may be a statistical model including probabilities computed with respect to the sets of action-parameter values and the outcome data.

A system, device, and methods include or utilize a microphone, a processor, and a user interface. The microphone senses sound and in response outputs a sound signal indicative of the sound. The processor is coupled to the microphone to receive the sound signal, configured to analyze the sound signal to identify in the sound signal an impact of a golf club with a golf ball during a swing of the golf club and determine a characteristic of the swing of the golf club based on a portion of the sound signal corresponding to sound sensed, at least in part, before the impact. The user interface is coupled to the processor and configured to display information related to the characteristic of the swing as determined by the processor.

A shoulder joint rehabilitation assistive device has an exoskeleton base, an actuating mechanism, a spherical mechanism, and an upper limb connecting mechanism. The actuating mechanism is mounted on the exoskeleton base and has a yaw spring actuating assembly and a pitch spring actuating assembly. The spherical mechanism is connected with the actuating mechanism and has a linking rod, a spherical yaw linking assembly, and a spherical pitch linking assembly. The linking rod is pivotally connected with the exoskeleton base. The spherical yaw linking assembly has two ends respectively provided with a first yaw actuating portion and a second yaw actuating portion. The spherical pitch linking assembly has two ends respectively provided with a first pitch actuating portion and a second pitch actuating portion. The upper limb connecting mechanism is connected with the linking rod and the second yaw actuating portion of the spherical yaw linking assembly.

The gyroscopic exercise device, comprised of one or more rotating mass equipped with accompanying gears, bearings, and optional components, encased in a frame connected to an attachment which contains additional optional equipment including electric motors, magnets, batteries, wiring and electronics, to which one or more handles or grips are connected in a temporary or fixed position, intended to overcome the high degree of difficulty and failure new users experience when using prior art friction-based gyroscopic exercise devices, by providing a novel driving system and rotor that is substantially more efficiency, powerful and durable with means of servicing wear points, enables users to consistently progress, further encouraging regular use, thereby developing greater strength circulation, and coordination in the hands, arms and upper body, which enhances stability and control when users operate handheld equipment.

The present invention comprises a sports game ball tracking system and method. The invention includes at least one computer chip imbedded in a game ball. The game balls may be identified with a bar code system or a numbering system. The game ball computer chip may be configured to provide the coordinates of the game ball to a system computer using a global positioning system. The system computer may optionally be linked to a satellite system. The computer chip or chips and the system computer may be coupled to the game clock thereby allowing the position of the game ball to be known at each point in time on the game clock. The system of the present invention may be integrated with an American football down and distance stake and clip replacing the antiquated system of first down measurement of the prior art.

In one embodiment, a method includes accessing an athletic-performance model of a first user, where the model is based on a plurality of sets of action-parameter values of action parameters of the first user. The action-parameter values may be determined based on biomechanical data of the first user performing a plurality of actions of a first action-type and outcome data of each action. A current skill level of the first user may be determined based on a measure of variances associated with action parameters of the first action-type. Target ranges of action-parameter values may be calculated for action parameters based on the athletic-performance model. Each target range may be based on a measure of probability with respect to the particular action parameters and the outcome data. A report of athletic-performance feedback may be generated and may include current skill level information and the target ranges of action-parameter values.