Instrumented handle and pedal systems for use in rehabilitation, exercise and training equipment

• US 8,025,607 B2
• Filed: 09/16/2010
• Issued: 09/27/2011
• Est. Priority Date: 09/16/2009
• Status: Active Grant

• Current Assignee: Northeastern University
• Original Assignee: Northeastern University
• Inventors: Lewis, Jeffrey, Deutsch, Judith, Sivak, Mark, Weinberg, Brian, Mavroidis, Constantinos, Ranky, Richard
• Primary Examiner(s): Thanh; Loan
• Assistant Examiner(s): Ginsberg; Oren
• Application Number:
  US12/883,814
• Publication Number:
  US 20110082009A1
• Time in Patent Office: 376 Days
• Field of Search: 482 1- 9, 482 51- 54, 482 57- 65, 482900-902, 601/23, 601/36, 434/61, 434/247, 434/255, 7337901-37903, 7337906-37907, 745/43, 745/60, 463/1, 463 6- 7, 463/36, 600/300, 600/587, 600/592, 600/595
• US Class Current: 482/8
• CPC Class Codes: A63B 2071/0644 with display speed of moving landscape controlled by the user's performance
• CPC Class Codes: A63B 2071/0652 Visualisation or indication relating to symmetrical exercise, e.g. right-left performance related to spinal column
• CPC Class Codes: A63B 2071/0655 Tactile feedback
• CPC Class Codes: A63B 2071/0691 Maps, e.g. yardage maps or electronic maps
• CPC Class Codes: A63B 22/0605 performing a circular movement, e.g. ergometers
• CPC Class Codes: A63B 2220/17 Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed
• CPC Class Codes: A63B 2220/30 Speed
• CPC Class Codes: A63B 2220/34 Angular speed
• CPC Class Codes: A63B 2220/51 Force
• CPC Class Codes: A63B 2220/56 Pressure
• CPC Class Codes: A63B 2220/58 Measurement of force related parameters by electric or magnetic means
• CPC Class Codes: A63B 2220/78 Surface covering conditions, e.g. of a road surface
• CPC Class Codes: A63B 2230/06 heartbeat rate only
• CPC Class Codes: A63B 23/16 for hands or fingers for teaching typing G09B13/00
• CPC Class Codes: A63B 24/0062 Monitoring athletic performances, e.g. for determining the work of a user on an exercise apparatus, the completed jogging or cycling distance
• CPC Class Codes: A63B 71/0622 Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing

Abstract

A mechatronic exercise system, e.g., for rehabilitation, having instrumented handle and pedal systems and, preferably, an interactive virtual environment is disclosed. Alternatively, the instrumented handle and pedal systems are part of a virtual reality augmenting kit that can convert most types of exercise equipment, such as a stationary or exercise bicycle, ergometer, rowing machine or the like, into full virtual reality (VR) smart systems. In another embodiment, the instrumented handle and pedal systems can each be used separately with other types of devices. In a preferred embodiment, components embedded with sensors are implemented, e.g., on a stationary, exercise bicycle to monitor physiological and biomechanical parameters of the user. Signal data from the sensing components is used to immerse the user in a VR simulation so as to provide the user with visual, auditory, and haptic feedback to the user'"'"'s performance.

Claims

1. A virtual reality augmented system for a mechatronic device for generating and displaying a virtual environment based on parameter data generated by a user of the mechatronic device during a user session, the system comprising:

one or two pedal assembly modules for sensing and measuring separately for each foot of the user forces in both compression and tension and static or dynamic pedal tilt, wherein each pedal assembly module includes;

a pedal having a pedal raceway;

a load cell that is disposed directly or substantially directly beneath the pedal raceway, for measuring load from a lower extremity on the pedal, the load cell structured and arranged to provide kinetic and kinematic parameter data to a processing device associated with the mechatronic device;

a spatial orientation detection device for sensing the static or dynamic pedal tilt by measuring a range of motion of an ankle of the user, the spatial orientation detection device being structured and arranged to provide tilt parameter data to the processing device; and

a sensing device for sensing velocity, the velocity sensing device structured and arranged to provide velocity parameter data to the processing device;

one or two handle bar assembly modules for sensing and measuring separately for each hand of the user a gripping and/or turning force on each handle bar of the mechatronic device;

a data acquisition system that is electrically coupled to each pedal assembly module and each handle bar assembly module to receive the parameter data separately therefrom and that is structured and arranged to process the parameter data and to transmit the parameter data to the processing device;

the processing device is structured and arranged to receive the parameter data from the data acquisition system and to use said parameter data to drive the virtual environment that is viewable by the user of the mechatronic device; and

a display device that is disposed proximate to the mechatronic device to be viewable by the user, the display device displaying the virtual environment generated by the processing device.

2. The system as recited in claim 1, further comprising a heart rate sensing device having a chest band that is attached to the user and that is structured and arranged to generate heart rate parameter data and to transmit said heart rate parameter data to a signal processing device that is used to establish speed of a virtual pace rider avatar in the virtual environment.

3. The system as recited in claim 2, further comprising a practitioner'"'"'s interface that is structured and arranged to display parameter data from each of the pedal assembly modules, from each of the handle bar modules, and from the heart rate sensing device to provide real-time and historic parameter data.

4. The system as recited in claim 1, wherein the parameter data are used to control one or more of dynamic motion, speed, or alignment and angle of tilt of a virtual pace rider avatar in the virtual environment.

5. The system as recited in claim 1, wherein the mechatronic device is a stationary, exercise bicycle.

21. The device as recited in claim 1, wherein the spatial orientation detection device is a single-axis or a multi-axis accelerometer, a gyroscope, a continuous rotary potentiometer or an optical encoder.

22. The device as recited in claim 1, wherein each pedal assembly module further comprises at least one vibrating device for providing haptic feedback to the user.

23. The device as recited in claim 1, wherein the pedal raceway is structured and arranged to mechanically couple to a crankshaft of a stationary, exercise bicycle.

24. The device as recited in claim 1, wherein each pedal assembly module further comprises a binding scheme for securing the user'"'"'s foot to the pedal.

25. The device as recited in claim 1, wherein the velocity parameter data generated by the velocity sensing device controls dynamic motion and a speed of a virtual, pace rider avatar in the virtual environment.

6. A mechatronic device for generating and displaying parameter data generated by a user of the mechatronic device during a user session, the system comprising:

one or two pedal assembly modules for sensing and measuring separately for each foot of the user forces in compression and/or tension and static or dynamic pedal tilt, wherein each pedal assembly module includes;

a pedal having a pedal raceway;

a load cell that is disposed directly or substantially directly beneath the pedal raceway, for measuring load from a lower extremity on the pedal, the load cell structured and arranged to provide kinetic and kinematic parameter data to a processing device associated with the mechatronic device;

a spatial orientation detection device for sensing the static or dynamic pedal tilt by measuring a range of motion of an ankle of the user, the spatial orientation detection device being structured and arranged to provide tilt parameter data to the processing device; and

a sensing device for sensing velocity, the velocity sensing device structured and arranged to provide velocity parameter data to the processing device;

the processing device is structured and arranged to receive the parameter data separately from each pedal assembly module;

a data acquisition system that is electrically coupled to each pedal assembly module to receive the parameter data therefrom and that is structured and arranged to process said parameter data and to transmit it to the processing device; and

a display device that is disposed proximate to the mechatronic device to be viewable by the user, the display device receiving from the processing device the parameter data generated by the user of the mechatronic device during the user session and displaying the parameter data.

7. The mechatronic device of claim 6, further comprising one or two handle bar assembly modules for sensing and measuring separately for each hand of the user a gripping force on each handle bar of the mechatronic device, wherein the processing device is further structured and arranged to receive parameter data separately from each of the handle bar assembly modules via the data acquisition system and to communicate handle bar assembly module data to the display device.

8. The mechatronic device of claim 6, further comprising a heart rate monitor to monitor the heart rate of the user during a user session, wherein the processing device is further structured and arranged to receive parameter data from the heart rate monitor via the data acquisition system and to communicate handle bar assembly module data to the display device.

9. The mechatronic device of claim 6, wherein said processing device is further structured to use said parameter data to drive a virtual environment that is viewable by the user of the mechatronic device and wherein the display device is further structured to display a virtual environment based on the parameter data generated by the user of the mechatronic device during a user session.

10. A mechatronic device for generating and displaying parameter data generated by a user of the mechatronic device during a user session, the system comprising:

one or two handle bar assembly modules for sensing and measuring separately for each hand of the user a gripping and/or turning force on each handle bar of the mechatronic device, the handle bar assembly module comprises;

a multi-piece handle bar housing that is structured and arranged to releasably attach to a handle bar of said mechatronic device, each piece of the housing including a plurality of channels;

one or more hydraulic chambers for carrying hydraulic fluid, each of the one or more hydraulic chambers being mounted in the plurality of channels of each piece of the multi-piece handle bar housing, wherein each said chamber comprises an effective sensing zone for contacting a hand of the user during user interaction with the mechatronic device to which said handle bar assembly module is attached and a non-sensing zone positioned outside the effective sensing zone;

one or more handle bar caps that are disposed on the handle bar housing and are associated with each of the one or more hydraulic chambers, each said handle bar cap being structured and arranged to constrain the portion of the associated hydraulic chamber positioned outside the effective sensing zone; and

at least one sensing device that is fluidly coupled to each of the one or more hydraulic chamber for sensing a change in fluid pressure therein and for generating an output signal;

a processing device that is structured and arranged to receive the parameter data separately from each handle bar assembly module;

a data acquisition system that is electrically coupled to each handle bar assembly module to receive the parameter data therefrom and that is structured and arranged to process said parameter data and to transmit it to the processing device; and

a display device that is disposed proximate to the mechatronic device to be viewable by the user, the display device receiving from the processing device the parameter data generated by the user of the mechatronic device during the user session and displaying the parameter data.

11. The mechatronic device of claim 10, further comprising one or two pedal assembly modules for sensing and measuring separately for each foot of the user forces in compression and/or tension and static or dynamic pedal tilt, wherein the processing device is further structured and arranged to receive parameter data separately from each of the pedal assembly modules via the data acquisition system and to communicate pedal assembly module data to the display device.

12. The mechatronic device of claim 10, further comprising a heart rate monitor to monitor the heart rate of the user during the user session, wherein the processing device is further structured and arranged to receive parameter data from the heart rate monitor via the data acquisition system and to communicate heart rate data to the display device.

13. The mechatronic device of claim 10, wherein said processing device is further structured to use said parameter data to drive a virtual environment that is viewable by the user of the mechatronic device and wherein the display device is further structured to display the virtual environment based on the parameter data generated by the user of the mechatronic device during a user session.

14. A method of generating and displaying a virtual environment based on parameter data generated by a user of a mechatronic device during a user session, the method comprising:

sensing separately forces applied by each foot of a mammalian user to a corresponding pedal assembly module of said mechatronic device;

outputting first parameter data signals from each corresponding pedal assembly module commensurate with the forces applied;

sensing static or dynamic pedal tilt separately for each foot of the user about the corresponding pedal assembly module;

outputting second parameter data signals commensurate with the static or dynamic pedal tilt of each corresponding pedal assembly module;

controlling alignment and angle of tilt of a virtual avatar in the virtual environment using a combination and/or modification of the first and second parameter data signals;

sensing separately a gripping force applied by each hand of the user to a corresponding handle assembly module of said mechatronic device;

outputting fluid pressure parameter signals commensurate with the gripping force applied to each corresponding handle assembly module;

controlling dynamic motion of the virtual avatar in the virtual environment using said fluid pressure parameter signals; and

displaying the virtual environment to the user.

15. The method as recited in claim 14, wherein the sensing forces applied by each foot includes sensing forces in both compression and tension using a single-axis or a multi-axis compression load cell.

16. The method as recited in claim 14, wherein the sensing a gripping force includes sensing gripping forces applied to a dorsal surface and to a ventral surface of a handle bar assembly.

17. The method as recited in claim 16, wherein said sensing a gripping force includes measuring a differential pressure between forces applied to the dorsal and to the ventral surfaces.

18. The method as recited in claim 14, further comprising:

sensing a heart rate of the user during a user session;

outputting heart rate parameter data signals commensurate with the heart rate; and

controlling a velocity of a virtual pace rider in the virtual environment using said heart rate parameter data signals.

19. The method as recited in claim 14, further comprising controlling a yaw of the virtual avatar using a differential force between gripping forces applied by a left hand to a left handle bar and gripping forces applied by a right hand to a right handle bar.

20. The method as recited in claim 14, further comprising providing haptic feedback to at least one of the user and the mechatronic device.

26. A virtual reality augmented system for a mechatronic device for generating and displaying a virtual environment based on parameter data generated by a user of the mechatronic device during a user session, the system comprising:

one or two pedal assembly modules for sensing and measuring separately for each foot of the user forces in both compression and tension and static or dynamic pedal tilt;

one or two handle bar assembly modules for sensing and measuring separately for each hand of the user a gripping and/or turning force on each handle bar of the mechatronic device;

wherein each of the handle bar assembly modules comprises;

handle bar assembly module comprises;

a multi-piece handle bar housing that is structured and arranged to releasably attach to a handle bar of said mechatronic device, each piece of the housing including a plurality of channels;

one or more hydraulic chambers for carrying hydraulic fluid, each of the one or more hydraulic chambers being mounted in the plurality of channels of each piece of the multi-piece handle bar housing, wherein each said chamber comprises an effective sensing zone for contacting a hand of the user during user interaction with the mechatronic device to which said handle bar assembly module is attached and a non-sensing zone positioned outside the effective sensing zone;

one or more handle bar caps that are disposed on the handle bar housing and are associated with each of the one or more hydraulic chambers, each said handle bar cap being structured and arranged to constrain the portion of the associated hydraulic chamber positioned outside the effective sensing zone; and

at least one sensing device that is fluidly coupled to each of the one or more hydraulic chamber for sensing a change in fluid pressure therein and for generating an output signal;

a data acquisition system that is electrically coupled to each pedal assembly module and each handle bar assembly module to receive the parameter data separately therefrom and that is structured and arranged to process the parameter data and to transmit the parameter data to a processing device;

the processing device is structured and arranged to receive the parameter data from the data acquisition system and to use said parameter data to drive the virtual environment that is viewable by the user of the mechatronic device; and

a display device that is disposed proximate to the mechatronic device to be viewable by the user, the display device displaying the virtual environment generated by the processing device.

27. The device as recited in claim 26, wherein the at least one sensing device is electrically coupled to the processing device to which said at least one sensing device is adapted to transmit fluid pressure parameter signals for controlling dynamic motion of a virtual avatar in the virtual environment.