摘要:
A swimmer performance analysis system is based on computer vision, including image processing, object detection and pose estimation. It can capture the image of the swimmer, recognize the swimmers' swimming style and analyze the swimmer's posture while calculating speed and the angle of the swimmer's body parts. Then, the analyzed information is fed back to a coach or the swimmer.
摘要:
In one aspect, a swimjet system may include a reverse thrust system worn by a swimmer proximate the frontal upper torso. The system provides a variable amount of reverse thrust such that the user can swim-in-place or make gradual forward progress. Importantly, this may enable a user to effectively "extend" a small residential pool to serve the same function as a twenty-five meter pool typically found at commercial or government facilities. The system also provides laminar current under the user while swimming, which solves the problems of "leg drop," the need to "out-kick" the arm stroke, and turbulence and wave action around the head associated with conventional swim-in-place devices. Still further, in certain embodiments the system provides a relatively strong current in the region of the arm stroke moving away from the swimmer which provides enhanced "resistance" for proficient swimmers
摘要:
Eine erfindungsgemäße Anordnung betrifft eine Vorrichtung (10) zur Erzeugung einer stehenden Welle (12) in einem Stillgewässer oder Wasserbecken (14). Dabei weist die Vorrichtung (10) mindestens einen Wasser-Beschleunigungsabschnitt (32), mindestens einen stromabwärts des Wasser-Beschleunigungsabschnitts (32) angeordneten Wellenerzeugungsabschnitt (46) und mindestens eine Pumpe (28) auf. Dabei ist die mindestens eine Pumpe (28) derart angeordnet, dass mit dieser Pumpe (28) Wasser aus einem Unterwasserbereich des Stillgewässers oder Wasserbeckens (14) auf ein gegenüber dem Wasserniveau (24) des Stillgewässers oder Wasserbeckens (14) höheres Startniveau (30) förderbar ist, um unter Ausnutzung der Schwerkraft (g) einen in Richtung des Wellenerzeugungsabschnitts (46) gerichteten Wasserstrom zu erzeugen. Ferner ist die Vorrichtung (10) gegenüber dem Stillgewässer oder Wasserbecken (14) derart angeordnet, dass das Stillgewässer oder Wasserbecken (14) mit seinem Wasserniveau (24) Teil des Wellenerzeugungsabschnittes (46) ist.
摘要:
A method and system for analyzing swimming technique, the method comprising measuring pressure exerted on the hand during a handstroke with at least one pressure sensor (12) attached to a hand of a swimmer; measuring acceleration in three dimensions during the handstroke with at least one acceleration sensor (13) attached to the hand of the swimmer; and calculating from the measured values a profile of the handstroke comprising a quantity and direction of the force during the handstroke.
摘要:
A kit comprising at least 2 devices adapted to be easily attached by way of suction to one or more sides or a bottom of a swimming pool, each of the devices having a grab member adapted to be grabbed by a hand of a child player or an adult player, the devices adapted to be easily attached to a side or bottom of the pool. A game can be played with the devices after they are attached at separate points such that a player may grab a first device with one hand and then a second device with another hand, moving along said side or said bottom while remaining under water. The device comprises a housing having an upper grab member having a height, diameter, cross-section, shape, and surface configured to be grabbed by a hand of a child or an adult, an actuator member configured to move up and down within the upper grab member, a spring member within the upper grab member arranged and adapted to urge the actuator member in an upward direction, and a flexible disk shaped member adapted to engage a swimming pool side or bottom by suction. The device is waterproof and is designed to be engaged by suction by pressing a release button while the flexible disk shaped member is pressed against an underwater pool surface.
摘要:
A wearable computing device that is secured or attached to a resilient strap, the resilient strap sized to fit around at least a part of a circumference of a human head. The device has a waterproof storage volume housing a plurality of sensors. The wearable computing device may calculate a plurality of swimming metrics based at least partly on data received from the at least one sensor. The wearable computing device may include a wireless communication subsystem secured to the resilient strap within the waterproof storage volume and may transmit at least one of the calculated plurality of swimming metrics to at least one computing device via the wireless communication subsystem. The wearable computing device may include at least one user output component and may present an indication of at least one of the calculated plurality of swimming metrics at the at least one user output component for communication to the user. The indication may be audio played in an ear piece connected to the strap, or may be visually displayed on a display in an eye goggle portion of the strap.
摘要:
Die Erfindung betrifft eine Wendeplatte (1) zum Messen von Abstosskräften von Schwimmern in einem Schwimmbecken (16) beim Wenden, umfassend eine steife Platte (2), die parallel zur Beckenwand (17) stabil befestigt werden kann, sowie Kraftsensoren (8) zum Ermitteln der Abstosskräfte. Erfindungsgemäss weist die Wendeplatte (1) einen steifen, rechteckigen Rahmen (6) auf, an welchem die Platte (2) an vier Stellen (7) jeweils über einen Kraftsensor (8) mit einer Spannschraube (9) unter Vorspannung befestigt ist. Zudem ist neben jedem dieser Kraftsensoren (8) ein Einstellbolzen (10) am Rahmen (6) angeordnet, der aus dem Rahmen (6) herausgefahren werden kann zum Abstützen des Rahmens (6) an der Beckenwand (17). Der Rahmen (6) weist mindestens einen, vorzugsweise zwei steife Befestigungsbügel (13) auf zur Montage am Beckenrand (18), vorzugsweise an einem Startblock (19).
摘要:
This invention relates to apparatus for the energy-efficient production of non-turbulent waves in a body of water and capable of producing a discrete wave or a succession of waves having a repetition rate and size that is suitable for surfing. The wave-making apparatus comprises a plurality of wave-making modules arranged side by side in parallel in a body of water (5) having an opposing beach (4) on which the waves may break. Each wave-making module comprises a reservoir (2) and a piston (1), the piston suspended so as to be able to move freely in a horizontal direction within the reservoir. Waves are generated in the body of water by the withdrawal (6) and forward (7) motions of the piston 1 when driven by an actuator. The design of the apparatus makes use of the resonant cavity that is formed between the piston (1) and the back wall of the reservoir (9), and makes use of the otherwise wasted wave energy from the withdrawal stroke of the piston, when reflected from the back wall of the reservoir (9), to supplement the forward, wave-generating stroke of the piston and thereby produce large non-turbulent waves with a high energy efficiency that are suitable for surfing and recreation. By energizing each wave-generating module in a sequence from one end to the other avoids the very high power requirement that would result from their simultaneous activation.