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WO2009099315A1 - Dispositif de détermination de position de membre pouvant être monté sur une personne - Google Patents

Dispositif de détermination de position de membre pouvant être monté sur une personne Download PDF

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Publication number
WO2009099315A1
WO2009099315A1 PCT/NL2008/000038 NL2008000038W WO2009099315A1 WO 2009099315 A1 WO2009099315 A1 WO 2009099315A1 NL 2008000038 W NL2008000038 W NL 2008000038W WO 2009099315 A1 WO2009099315 A1 WO 2009099315A1
Authority
WO
WIPO (PCT)
Prior art keywords
limb
mountable
determining device
person
base unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/NL2008/000038
Other languages
English (en)
Inventor
Hugo J. J. Braam
Paul A. J. Braam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/NL2008/000038 priority Critical patent/WO2009099315A1/fr
Publication of WO2009099315A1 publication Critical patent/WO2009099315A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A63F13/06—
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/20—Input arrangements for video game devices
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/20—Input arrangements for video game devices
    • A63F13/21—Input arrangements for video game devices characterised by their sensors, purposes or types
    • A63F13/211—Input arrangements for video game devices characterised by their sensors, purposes or types using inertial sensors, e.g. accelerometers or gyroscopes
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/20—Input arrangements for video game devices
    • A63F13/23—Input arrangements for video game devices for interfacing with the game device, e.g. specific interfaces between game controller and console
    • A63F13/235—Input arrangements for video game devices for interfacing with the game device, e.g. specific interfaces between game controller and console using a wireless connection, e.g. infrared or piconet
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/20—Input arrangements for video game devices
    • A63F13/21—Input arrangements for video game devices characterised by their sensors, purposes or types
    • A63F13/212—Input arrangements for video game devices characterised by their sensors, purposes or types using sensors worn by the player, e.g. for measuring heart beat or leg activity
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/25—Output arrangements for video game devices
    • A63F13/28—Output arrangements for video game devices responding to control signals received from the game device for affecting ambient conditions, e.g. for vibrating players' seats, activating scent dispensers or affecting temperature or light
    • A63F13/285—Generating tactile feedback signals via the game input device, e.g. force feedback
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/50—Controlling the output signals based on the game progress
    • A63F13/53—Controlling the output signals based on the game progress involving additional visual information provided to the game scene, e.g. by overlay to simulate a head-up display [HUD] or displaying a laser sight in a shooting game
    • A63F13/537—Controlling the output signals based on the game progress involving additional visual information provided to the game scene, e.g. by overlay to simulate a head-up display [HUD] or displaying a laser sight in a shooting game using indicators, e.g. showing the condition of a game character on screen
    • A63F13/5372—Controlling the output signals based on the game progress involving additional visual information provided to the game scene, e.g. by overlay to simulate a head-up display [HUD] or displaying a laser sight in a shooting game using indicators, e.g. showing the condition of a game character on screen for tagging characters, objects or locations in the game scene, e.g. displaying a circle under the character controlled by the player
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/70—Game security or game management aspects
    • A63F13/77—Game security or game management aspects involving data related to game devices or game servers, e.g. configuration data, software version or amount of memory
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/10—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals
    • A63F2300/1012—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals involving biosensors worn by the player, e.g. for measuring heart beat, limb activity
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/10—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals
    • A63F2300/1037—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals being specially adapted for converting control signals received from the game device into a haptic signal, e.g. using force feedback
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/30—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by output arrangements for receiving control signals generated by the game device
    • A63F2300/303—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by output arrangements for receiving control signals generated by the game device for displaying additional data, e.g. simulating a Head Up Display
    • A63F2300/306—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by output arrangements for receiving control signals generated by the game device for displaying additional data, e.g. simulating a Head Up Display for displaying a marker associated to an object or location in the game field
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/50—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by details of game servers
    • A63F2300/55—Details of game data or player data management
    • A63F2300/552—Details of game data or player data management for downloading to client devices, e.g. using OS version, hardware or software profile of the client device
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/80—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game specially adapted for executing a specific type of game
    • A63F2300/8082—Virtual reality

Definitions

  • the invention relates to the field of devices for determining the position of a person. Such devices are widely known, especially for computer gaming. Additionally, the invention relates to the field of exercising systems as well.
  • Philips, US 4.512.567, and Ritchie, US 4.637.605 both describe exercise bicycles with computer game controls. Additionally, there are a lot of other patents in which a known stationary exercise device like an exercise bicycle or a treadmill, a stair stepper or rowing machine, etc, is combined with a computer game. See in example Andrus et al. US 5.591.104, Bobick et al. US 5.890.995 or Ewert, US 6004243. All of these devices lack portability and they restrict the user to the specific movement of the stationary exercise device concerned.
  • Braeunig US 4.925.189, provides a body mounted video game exercise device comprising a tilt detecting means for the upper body.
  • the device registers tilting of the torso, not the movement of any limbs.
  • WO 9 605 766 disclosed a user controlled combination video game and exercise system using sensors to detect movement of body members.
  • it proposes a system with separate hand activity sensor apparatus, torso activity sensor apparatus and feet activity sensor apparatus with an infrared or radio frequency interface.
  • infrared for motion tracking may not be reliable when a body member is blocking the line of sight.
  • radio frequency for data transfer is well known at the time of application, but the patent does not teach how to use it for motion tracking.
  • each sensor would need a separate power source to be able to act as a receiver and/or transmitter.
  • Avni describes a mat comprising not only pressure sensors to register foot activity, but sensors to detect movement of the user's hands as well. Said sensors are located inside the mat and connected to two long elastic cords, which have handles on the other end for the user's hands. Movement of the user's hands is then registered by the sensors in the mat. Once again the user is restricted to movement on the mat and only the distance between the user's hands and the mat can be registered. Additionally, the mat only registers pressure of the feet on the mat, but does not track the actual movement of the legs.
  • Oh, US 5.616.078 discloses a motion controlled video entertainment system, using markers attached to body members and registered by detector means to determine the position in three dimensional space of said markers.
  • This invention needs a large empty space in order for the line of sight to be free between the markers and the detector means. Also, determining the position of the markers becomes impossible if the user puts a body member in the line of sight, i.e. by turning away or bending a body member.
  • Accelerometers are capable of measuring relative movement, but are not suited to precisely measure absolute movement, especially in case of slow movements or extreme fast and jerky movements, which is often the case with exercise. Additionally, accelerometers need power, which could be provided through separate power sources, like batteries, connected to the body members of the user, or by connecting them by contact wires. Neither of these solutions is preferred as it results in heavy sensors that need batteries, or contact wires along body limbs.
  • Myers GB 2.373.039, describes a transducer for detecting the position of a mobile unit, in which the mobile unit could be a glove, having application as an input device for a computer game.
  • the base unit By putting the base unit on the floor or table as proposed, the user is forced to stay within the region of the base unit, which means he is limited in range of exercise. Additionally, it is to be expected that the user will subconsciously move during exercise, which makes it impossible to correctly position connected body limbs relative to the body.
  • the invention as disclosed is not well suited for an exercise system using 4 .1 u e / i ⁇ L. 0 Q
  • Lavache WO 2007110626, describes a method for wireless position sensing in three dimensions using ultrasound.
  • a fixed unit communicates with a mobile unit through ultrasound and radio frequency, thus being able to determine the position the mobile unit.
  • the invention is particularly aimed at the computer and video games market, it is not well suited for such consumer applications, since the distance between the fixed unit and the mobile unit is relatively long for communication with sound, which means that there will some delay between position determination and the feedback on said determination, while quick reaction time is crucial especially for computer games. Additionally, accurate determination in a domestic environment over this distance may be problematic due to reflection by furniture and walls. A long distance also requires a more powerful ultrasonic transducer, consuming more battery power.
  • a member tracking system relative to the user's body, of which all the position determining units are mobile.
  • None of the existing position determining devices or exercise devices discloses a full body game and exercise application for consumer use.
  • none of the existing position determining devices used for gaming and exercise provides precise tracking of the position of the user's limbs relative to the user's body, while allowing the user to move around freely.
  • a goal of the invention is to provide a position determining device for use with interactive software, like games, computer animation, virtual reality or exercise software and the like, that obviates at least one of the above mentioned drawbacks.
  • another goal of the invention is to provide a reliable and relatively cheap position determining device.
  • the invention provides a person mountable limb position determining device for use with interactive software, comprising a central base unit adapted for mounting on the trunk of the user and at least one positioning element arranged for connection to a limb and an operative connection to the base unit for determining the position of the limb with respect to the central base unit.
  • central base unit mounted on the trunk of the user carrying the position determining device, he can move rather free on the ground without influencing the position determination of one or more of his limbs with respect to the central base unit.
  • the user carrying the position determining device By operatively connecting the central base unit to the positioning element through flexible or wireless means, the user carrying the position determining device, can move his limbs freely during use of the device.
  • the position determining device can be relatively small, and the short distance between the central base unit and the positioning element results in a more reliable communication, higher power efficiency and less delay as known devices with fixed units.
  • the position determining device can be rather compact, which is advantageous for the user carrying the position determining device.
  • the positioning element By providing a positioning element that comprises a limb connecting element and a position transducer, the positioning element can be easily mounted on the limb through the limb connecting element, while the position transducer can determine the position of the limb with respect to the central base unit, which is mounted on the trunk of the user.
  • the central base unit By providing the central base unit with a data gathering unit for processing data provided by the positioning element and a sender for sending the data to a receiver for further processing, data communication can be simplified.
  • the invention also provides an exercising system comprising a limb position determining device for use with interactive software according to any of the preceding claims, further comprising a receiver for receiving the data provided by the position determining device coupled to a control unit for providing input to an exercising program.
  • the position data gathered by the positioning elements can be easily sent to the receiver.
  • a control unit By coupling a control unit to the receiver the position data can be further processed as input to an exercising program.
  • the exercising program can e.g. provide feedback to the user carrying the position determining device, or can e.g. record the performance.
  • Fig. 1 a schematic view of a first embodiment of a person mountable limb position determining device according to the invention
  • Fig. 2 a schematic view of a position transducer according to the first embodiment of the invention
  • Fig. 3 a schematic view of a first exemplary use of the first embodiment of the invention
  • FIG. 4 a schematic view of a second exemplary use of the first embodiment of the invention
  • Fig. 5 a schematic view of an exemplary use of a second embodiment of the person mountable position determining device according to the invention
  • Fig. 6 a schematic view of a third embodiment of a person mountable position determining device according to the invention.
  • Fig. 7 a schematic view of a position transducer according to the third embodiment of the invention.
  • Fig. 8 a schematic view of a fourth embodiment of a person mountable position determining device according to the invention.
  • FIG.l depicts one preferred embodiment of the invention, in which the controller device comprises one central base unit 1.
  • the central base unit 1 comprises an acceleronieter for measuring tilt of the user's trunk and four positioning elements 2,3,4,5 for determining the position of the user's right arm, left arm, right leg and left leg respectively.
  • Each of said positioning elements comprises a limb connecting element 6,7,8,9 and a position transducer 10,11,12,13.
  • Two limb connecting elements 6,7 are strapped around the person's right and left wrist and two other limb connecting elements 8,9 around the user's right and left upper leg. They are kept into place by a Velcro shutting.
  • Each limb connecting element 6,7,8,9 is connected to the corresponding position transducer 10,11,12,13, comprising a distance determining instrument and an angle determining instrument, see FIG.2 for further explanation.
  • the central base unit 1 is adapted for attachment to the user's trunk by means of a belt 14.
  • the central base unit 1 comprises three control buttons 15 on top for additional control means.
  • a wireless handheld joystick 16 is provided comprising an analog joystick means 17 and control buttons 18 for additional control means.
  • FIG.2 shows a schematic view of the position transducer 10,11,12,13 of the embodiment depicted in FIG.l, comprising an elastic cord 19, a force sensor 20, an analog joystick mechanism 21 and a circuit board 22.
  • the elastic cord 19 is to be attached to a limb connecting element with attachment means 23 and can be extensively stretched, in order to provide sufficient freedom of movement for the user's arm or leg.
  • the other end of the elastic cord 19 is attached to the force sensor 20 and the analog joystick mechanism 21 by attachment means 24.
  • the elastic cord 19 and the force sensor 20 form a distance determining instrument, as the force sensor 20 can register the pulling force by the elastic cord 19 when the user extends his limb away from the central base unit. Thus, it can be determined if, and even how far, the limb of the user has been extended away from the central base unit.
  • the analog joystick mechanism 21 comprises an elongated stick 25 and operates as an angle determining instrument as it is pulled in the direction of the limb connecting element by the elastic cord 19, allowing the determination of the angle of the connected limb with respect to the central base unit along two axes.
  • the amount of extension of the user's limb provided by the distance determining instrument, together with the angle of the analog joystick mechanism make it possible to calculate the position of the user's limb with respect to the central base unit and thus to his body. Previous calibration by the user through software may be necessary for more precise determination, as the limbs of different users may differ significantly in length.
  • FIG.3 shows the embodiment depicted in FIG.l and FIG.2, but now the central base unit 1 is mounted on the user, by means of the belt 14.
  • the limb connecting elements 6,7 for the user's arms are attached to his wrists and the limb connecting elements 8,9 for the user's legs have been bound around the user's upper legs.
  • the wireless handheld joystick 16 is being held by the user's right hand.
  • the limb position, determining device is connected to a game console 26, by means of a wireless radio connection 27 on the license free 2,4 GHz frequency, between a sender positioned in the central base unit and a receiver inserted in the USB-port of the game console.
  • the game console 26 displays a martial arts game on TV 28 starring a character which is controlled by the user. While under constant attack by all kinds of evildoers, the user is forced to make the game character run, hit and kick in order to survive and make his way into the next level.
  • the user makes the game character run around using the analog joystick means 17 on the wireless joystick 16, which also communicates through the wireless connection 27.
  • the user makes the game character hit and kick by performing the same actions with his own body.
  • the body movements made by the user namely cause alteration of input for the positioning transducers 10,11,12,13 as it changes the angle of the analog joystick mechanisms and the pulling force on the force meter in the position transducers.
  • the analog joystick mechanism in the position transducer 10 will be pulled in an upward direction by the elastic cord between the limb connecting element and the analog joystick mechanism. Additionally, the elastic cord will pull the force sensor in the position transducer 10: the higher the force, the more distant is the hand from central base unit.
  • the data provided by the position transducer 10 is gathered by a data gathering unit in the central base unit 1 and transmitted to the game console 26 via the wireless radio connection 27. The data is then interpreted by the software as input for having the character punch upwards with his right hand.
  • FIG.4 depicts the same type of central base unit 1 as in FIG.l, but now without the limb connecting elements for the hands and the elastic cords are detached as well.
  • the embodiment of the invention is not being used on it own, but in combination with stationary exercise equipment, namely an exercise bike 29.
  • the user exercises on the exercise bike 29 by paddling his feet around in a circular motion, as if he is riding an actual bike.
  • the motion of the user's upper legs moving up and down is registered through position transducers 12,13.
  • connection means 31 which has been connected to the grip of the exercise bike through connection means 31, so that it can be easily controlled during the exercise while keeping the supporting grip available for the user's right hand.
  • Said joystick 30 is connected to the central base unit 1 by means of a connection cable 32.
  • the data from the position transducers 12,13 and the joystick 30, is transmitted to a personal computer 33 through a wireless radio connection 27.
  • the personal computer 33 is running a computer game called Bike Battle, which is displayed on a TV-screen 28 via the TV-out option of the graphics card of the personal computer 33.
  • the computer game is a cycling simulation, in which the user controls a virtual cycling character and has to compete with other virtual opponents.
  • the movement of the user's legs is synchronized with the movement of the legs of the virtual cycling character the user controls, which means that the faster the user makes the paddling rotations, the faster the virtual character will go.
  • the joystick 30 is used to steer the virtual bicycle left and right. Additionally, the user may turn his left or right leg outwards, which will make the analog joystick mechanism of the position transducer 12,13 connected to said leg, turn outwards as well. This input will be interpreted and translated by the game into a kicking action, which enables the user to kick opponents of their bikes when cycling next to them.
  • FIG.5 depicts the user running on a treadmill 34.
  • the limb position determining device he is using is a different embodiment of the invention than r
  • the central base unit 35 comprises position transducers 36,37 for the legs only, and thus fully lacks means for determining the position of the user's arms.
  • the user uses a wireless joystick 16 for additional control, which he holds in his right hand.
  • the user is playing a game, which is run on a receiving device 38, in which the particular software has been embedded, i.e. through a circuit board or on flash memory.
  • FIG.6 shows yet another alternative embodiment of the invention, in which the limb position determining device comprises a central base unit 39, which is connected to a belt 40 attached around the user's waist.
  • the central base unit 39 comprises an accelerometer to measure tilt of the user's trunk and four position transducers 41,42,43,44 and four limb connecting elements 45,46,47,48 forming the position elements for tracking of the user's arm and leg movement.
  • the position transducers 41,42,43,44 of the position elements in this particular embodiment of the invention are different.
  • Each position transducer can determine the position of the connected limb along three generally orthogonal axes by means of an analog joystick mechanism, a substantially non-elastic cord and an integrated potentiometer, as is explained in FIG.7.
  • the central base unit 39 comprises a connection point 49 for external devices like a heart rate monitor 50.
  • the information from the heart rate monitor is sent to a game console through a wireless connection.
  • the software running on the console displays the user's heart rate and tells the user to speed up his exercise if his heart rate is too low compared to the optimal heart rate for the particular exercise. Alternatively, the user is told to slow down a bit if the heart rate is too high in comparison with the optimal heart rate for the particular exercise.
  • FIG.7 displays a schematic view of one of the position transducers 41,42,43,44 as depicted in FIG.6. It comprises a regular analog joystick mechanism 49, but with an elongated hollow stick 50.
  • the joystick mechanism 49 operates as an angle determining instrument to determine the angle between the central base unit and the connected limb along two axes, as it is P
  • the substantially non-elastic cord 51 goes through the elongated hollow stick 50 into the central base unit where the winder 53 winds or unwinds the non-elastic cord 51 when the user moves the connected limb towards or away from the central base unit.
  • the distance between the limb and the central base unit can be determined through the extension of the non-elastic cord 51, which can be registered by means of the potentiometer 54 connected to the winder 53.
  • the readings of the analog joystick mechanism 49 combined with the readings of the potentiometer 54, make is possible to determine the position of the connected limb with respect to the central base unit.
  • FIG.8 shows yet another alternative embodiment of the invention in which the limb position determining device comprises a central base unit 55, which has been attached to the user's waist by means of a belt 56.
  • the position of the limbs is determined through wireless means, as the positioning elements are operatively connected to the central base unit 55 through ultrasound.
  • the position transducers in this embodiment comprise a plurality of ultrasonic transducers; one ultrasonic transducer 57, 58, 59, 60 is attached to each limb connecting element 61, 62, 63, 64 for sending out ultrasonic signals, while the central base unit comprises three ultrasonic transducers 65, 66, 67 for receiving the ultrasonic signals.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Cardiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Position Input By Displaying (AREA)

Abstract

L'invention porte sur un dispositif de détermination de position de membre pouvant être monté sur une personne, pour déterminer la position d'un ou plusieurs membres de l'utilisateur par rapport à son corps. Le dispositif de détermination de position de membre comprend une unité de base centrale conçue pour un montage sur le tronc de l'utilisateur et au moins un élément de positionnement conçu pour une liaison à un membre et une liaison opérationnelle à l'unité de base centrale pour déterminer la position du ou des membres par rapport à l'unité de base centrale.
PCT/NL2008/000038 2008-02-08 2008-02-08 Dispositif de détermination de position de membre pouvant être monté sur une personne Ceased WO2009099315A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/NL2008/000038 WO2009099315A1 (fr) 2008-02-08 2008-02-08 Dispositif de détermination de position de membre pouvant être monté sur une personne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL2008/000038 WO2009099315A1 (fr) 2008-02-08 2008-02-08 Dispositif de détermination de position de membre pouvant être monté sur une personne

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WO2009099315A1 true WO2009099315A1 (fr) 2009-08-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Publication number Priority date Publication date Assignee Title
US9808673B2 (en) 2016-01-12 2017-11-07 Julie C. Robinson System for automatically providing high-intensity interval training (HIIT)
US12076129B2 (en) 2018-08-10 2024-09-03 Tristan Whitmarsh Apparatus and method for determining an indication of blood flow

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