An accuracy ball has a target strike cover, sensors, grips, and a data core that function in combination to provide a device that a trainer can hold and a fighter can practice striking accurately. The accuracy ball has target aim points that a user attempts to strike. The ball can gather data concerning the user's performance during a workout, including strike: accuracy/precision, strength/force, number and velocity, etc. The target strike cover can provide cushioning, as needed. Internal grasp handles allow the accuracy ball to be held safely by providing protection from errant strikes. Sensors including force plates, accelerometers, gyroscopes, location sensing, temperature, pressure, humidity, etc. can all be incorporated. On/off switch, IO port (such as micro-USB), wireless communication devices, display screen, control switches, etc. can be integrated therein as well. Exported data can be tracked, analyzed, graphed, and used to enhance learning and improve skill-sets.

The present invention discloses an intelligent household air purification cabinet type body-building apparatus, comprising a box body, a running machine, an air purifier and a power supply. The intelligent household air purification cabinet type body-building apparatus is further provided with an intelligent control system which comprises a controller, a central control computer, a pressure frequency detection device, an audio device, a display device and a signal receiving and transmitting device. A use method of the body-building apparatus comprises five steps of facility unfolding and need setting, environment preparation, body-building process, statistical analysis of body-building completion, and folding. The present invention has the advantages of small occupation space, complementary functions, no need of adding a power supply, supply of body-building environment beneficial to a human body, convenient operation and capability of long-term sustainable improvement.

An Internet of Thing (IoT) device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

In some aspects, the disclosure is directed to methods and systems for determining ballistics of golf balls in different atmospheric conditions. The system can receive a set of characteristics for a plurality of golf swings of a golf ball under baseline atmospheric condition. The system can generating a player profile comprising an average of each of the set of characteristics for the plurality of golf swings. The system can identify a second atmospheric conditions different from the baseline atmospheric conditions. The system can calculate a predicted distance traveled by the golf ball if hit by a golf swing under the second atmospheric conditions. The system can present, in a graphical user interface, the predicted distance traveled by the golf ball under the second atmospheric conditions.

Techniques for automatic tracking of user data for exercises are disclosed. In one aspect, a method of operating a wearable device may involve determining that a user of the wearable device has started an exercise, activating the GPS receiver in response to determining that the user has started the exercise, and detecting a time at which the GPS receiver achieves an initial GPS fix of a location of the wearable device. The method may further involve logging, based on output of the one or more biometric sensors, a first set of user data during a first time interval between the start of the exercise and the detected time of the initial GPS fix, and back-filling an exercise route of the user during the first time interval based on the first set of user data.

An Internet of Thing (IoT) device includes a sensor coupled to a processor; and a transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

The present invention relates to an electronic caddie-type golf assistance system and, more particularly, to an electronic caddie-type golf assistance system based on weather information calculated by inputting weather measurements into high-precision weather modeling. The golf assistance system according to the present invention comprises: a weather information acquisition device for acquiring weather information of a golf course; a wind information restoration device which models the weather information acquired by the weather information acquisition device to restore wind information; and an electronic caddie device for providing caddie information on the basis of the restored wind information. The golf assistance system according to the present invention may improve golfing performance by providing local-scale 3D wind information of a golf course.

An Internet of Thing (IoT) device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

A method of varying a dynamic resistive force during a strength training exercise includes receiving a selection of the strength training exercise from a set of available strength training exercises and obtaining exercise logic for the strength training exercise from computer memory. The exercise logic provides instructions for generating a vector that defines the dynamic resistive force provided at an end effector of a strength training apparatus during the strength training exercise. The method includes determining a real-time geometric arrangement of a plurality of cables coupled to the end effector, generating, based on the real-time geometric arrangement of the plurality of cables and the exercise logic, time-varying operating setpoints for a plurality of actuator assemblies coupled to the plurality of cables, and exerting the dynamic resistive force at the end effector by controlling the plurality of actuator assemblies in accordance with the time-varying operating setpoints.

Methods and systems for detecting configuration states of a golf club and adjustment systems of a golf club, such as a shaft connection system. A golf club configuration detection system captures configuration data from the adjustment system of the golf club by a configuration detection device, such as a camera, a barcode scanner, or an RFID scanner. The captured configuration data is compared to reference configuration data to determine a configuration state of the adjustment system. Swing data and ball-flight data are tracked for golf-ball strikes with the golf club in the detected configuration state. Recommendations for configuration states may be generated based on the tracked data.