Motion capture element

• US 8,903,521 B2
• Filed: 01/17/2012
• Issued: 12/02/2014
• Est. Priority Date: 08/26/2010
• Status: Active Grant

• Current Assignee: Newlight Capital, LLC
• Original Assignee: Blast Motion Incorporated
• Inventors: Goree, John, Bose, Bhaskar, Bentley, Michael
• Primary Examiner(s): Ali, Mohammad
• Assistant Examiner(s): Sivanesan, Sivalingam
• Application Number:
  US13/351,429
• Publication Number:
  US 20120116548A1
• Time in Patent Office: 1,050 Days
• Field of Search: 700/90
• US Class Current: 700/90
• CPC Class Codes: A61B 5/1118 Determining activity level
• CPC Class Codes: A61B 5/1123 Discriminating type of movement, e.g. walking or running A61B5/1116, A61B5/112 take precedence
• CPC Class Codes: A61B 5/1127 using markers
• CPC Class Codes: A61B 5/6895 Sport equipment
• CPC Class Codes: A61B 5/7232 involving compression of the physiological signal, e.g. to extend the signal recording period
• CPC Class Codes: A61B 5/7239 using differentiation including higher order derivatives
• CPC Class Codes: A61B 5/7253 characterised by using transforms
• CPC Class Codes: A61B 5/743 Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
• CPC Class Codes: A63B 2225/50 Wireless data transmission, e.g. by radio transmitters or telemetry
• CPC Class Codes: A63B 49/08 with special construction of the handle
• CPC Class Codes: A63B 53/14 Handles
• CPC Class Codes: A63B 60/46 Measurement devices associated with golf clubs, bats, rackets or the like for measuring physical parameters relating to sporting activity, e.g. baseball bats with impact indicators or bracelets for measuring the golf swing
• CPC Class Codes: A63B 69/3632 Clubs or attachments on clubs, e.g. for measuring, aligning A63B69/3614 takes precedence; clubs for swinging exercises in general A63B15/00

Abstract

Motion capture element for low power and accurate data capture for use in healthcare compliance, sporting, gaming, military, virtual reality, industrial, retail loss tracking, security, baby and elderly monitoring and other applications for example obtained from a motion capture element and relayed to a database via a mobile phone. System obtains data from motion capture elements, analyzes data and stores data in database for use in these applications and/or data mining, which may be charged for. Enables unique displays associated with the user, such as 3D overlays onto images of the user to visually depict the captured motion data. Ratings, compliance, ball flight path data can be calculated and displayed, for example on a map or timeline or both. Enables performance related equipment fitting and purchase. Includes active and passive identifier capabilities.

Claims

1. A motion capture element comprising:

a memory;

a sensor configured to capture any combination of values associated with an orientation, position, velocity, acceleration of said at least one motion capture element;

a radio;

a microcontroller coupled with said memory, said sensor and said radio, wherein said microcontroller is configured to

estimate an initial orientation based on motion capture data from two points in time;

collect data that comprises sensor values from said sensor;

detect a first value from said sensor values having a first threshold value; and

,

detect a second value from said sensor values having a second threshold value within a time window;

signify a prospective event;

compare said prospective event to a characteristic signal associated with a typical event and eliminate any false positive events;

signify a valid event if said prospective event is not a false positive event;

save said valid event in said memory that comprises information within an event time window as said data;

store said data in said memory; and

,

transmit said data via said radio.

2. The motion capture element of claim 1 wherein

said estimate comprises a calculation of an orientation transform matrix Q₀ of the sensor with respect to a world reference frame through integration of u(t)=∫

₀^tPs^Bdt wherein Q₀u(t)=−

gt when said motion capture data at said two points in time comprises estimated velocities that are approximately zero.

3. The motion capture element of claim 1 wherein said microcontroller is further configured to

alter a sampling rate of said sensor based on said sensor values obtained from said sensor to maintain accuracy of said sensor values.

4. The motion capture element of claim 1 wherein said microcontroller is further configured to

transmit said valid event as said data after said valid event is detected wherein said data is transmitted on an event-by-event basis or periodically or when requested by a computer.

5. The motion capture element of claim 1 wherein said microcontroller is further configured to store said data in memory at least until a communications link to a computer exists and said data has been transferred to said computer.

6. The motion capture element of claim 1 wherein said microcontroller is further configured to power off if no motion is detected for a predefined time.

7. The motion capture element of claim 1 wherein said microcontroller is further configured to power on when motion is detected.

8. The motion capture element of claim 1 wherein said microcontroller is further configured to power on when motion is detected via said sensor or wherein said microcontroller is coupled with a passive motion detector that requires no power and wherein said microcontroller is further configured to power on when said passive motion detector that requires no power detects said motion.

9. The motion capture element of claim 1 wherein said microcontroller is further configured to download new firmware, check the new firmware and if the new firmware is valid, execute the new firmware and wherein said download is configured to utilize a universally unique identifier to pair said microcontroller to another computer.

10. The motion capture element of claim 1 further comprising a visual marker.

11. The motion capture element of claim 1 further comprising a battery and a mechanical charger wherein said battery is coupled with said microcontroller and wherein said battery is further coupled with said mechanical charger.

12. The motion capture element of claim 1 further comprising a proximity sensor coupled with said microcontroller.

13. The motion capture element of claim 1 wherein said transmit of said data is configured to transmit said data to an alarm to turn said alarm off.

14. The motion capture element of claim 1 wherein said transmit of said data is configured to transmit said data to a computer that is configured to compare said data against previously saved motion capture data.

15. The motion capture element of claim 1 further comprising a wireless interface coupled to said microcontroller wherein said wireless interface is configured to wirelessly communicate with another wireless interface up to 50 meters away.

16. The motion capture element of claim 1 further comprising a cellular wireless interface coupled to said microcontroller wherein said cellular wireless interface is configured to wirelessly communicate with an Internet coupled computer.

17. The motion capture element of claim 1 wherein said microcontroller is further configured to enable a computer wirelessly coupled with said microcontroller to

read a value of a characteristic from the microcontroller;

send a new value for the characteristic to the microcontroller; and

,

command the microcontroller to notify the computer whenever the value of the characteristic changes.

18. A motion capture element comprising:

a memory;

a sensor configured to capture any combination of values associated with an orientation, position, velocity, acceleration of said at least one motion capture element;

a radio;

a microcontroller coupled with said memory, said sensor and said radio, wherein said microcontroller is configured to

collect data that comprises sensor values from said sensor;

detect a first value from said sensor values having a first threshold value; and

,

detect a second value from said sensor values having a second threshold value within a time window;

signify a prospective event;

compare said prospective event to a characteristic signal associated with a typical event and eliminate any false positive events;

signify a valid event if said prospective event is not a false positive event;

save said valid event in said memory that comprises information within an event time window as said data;

alter a sampling rate of said sensor based on said sensor values obtained from said sensor to maintain accuracy of said sensor values;

store said data in said memory; and

,

transmit said data via said radio.

19. A motion capture element comprising:

a memory;

a sensor configured to capture any combination of values associated with an orientation, position, velocity, acceleration of said at least one motion capture element;

a radio;

a microcontroller coupled with said memory, said sensor and said radio wherein said microcontroller is configured to

collect data that comprises sensor values from said sensor;

detect a first value from said sensor values having a first threshold value and

detect a second value from said sensor values having a second threshold value within a time window;

signify a prospective event;

compare said prospective event to a characteristic signal associated with a typical event and eliminate any false positive events;

signify a valid event if said prospective event is not a false positive event;

store said valid event in said memory that comprises information within an event time window;

transmit said valid event via said radio; and

,

maintain a communication link between said radio and a second radio through transmission of information via said radio at a first communication interval when no valid event has occurred over a predetermined first period wherein said first communication interval between transmission of information is longer than a time interval between transmission of packets related to said valid event or transmission of said data.