Multi-axis control of a fixed or moving device based on a wireless tracking location of one or many target devices

• US 20080002031A1
• Filed: 05/08/2006
• Published: 01/03/2008
• Est. Priority Date: 05/06/2005
• Status: Abandoned Application

• Current Assignee: John-Paul P. Cana, Stephen A. Milliren, Wylie J. Hilliard
• Original Assignee: John-Paul P. Cana, Stephen A. Milliren, Wylie J. Hilliard
• Inventors: Milliren, Stephen, Cana, John-Paul, Hilliard, Wylie
• Application Number:
  US11/429,898
• Publication Number:
  US 20080002031A1
• Time in Patent Office: Days
• US Class Current: 348/208.14
• CPC Class Codes: G01S 13/74 Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
• CPC Class Codes: G01S 15/74 Systems using reradiation of acoustic waves, e.g. IFF, i.e. identification of friend or foe
• CPC Class Codes: G01S 19/14 specially adapted for specific applications
• CPC Class Codes: G01S 5/0027 of actual mobile position, i.e. position determined on mobile
• CPC Class Codes: H04N 23/635 Region indicators; Field of view indicators
• CPC Class Codes: H04N 23/661 Transmitting camera control signals through networks, e.g. control via the Internet
• CPC Class Codes: H04N 23/695 Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects

Abstract

A wireless tracking and control system (122) is provided for aiming a device (124) toward TAGs (134) which are mounted to subjects for tracking. The TAGS (134) preferably include locating devices for determining TAG locations and wireless transmitters for transmitting location information to a tracking and control unit (122). The tracking and control unit (122) also includes a locating device, and determines the location of a selected TAG (134) relative to the device (124). A position control unit (130) is then moved to aim the device (124) toward the selected TAG (134). In a second embodiment, a sonic tracking and control system (190) includes a sonic TAG (192), which in response to a wireless command, emits a sonic burst which is received by spaced apart transducers of a tracking and control unit (194), for determining the location the sonic TAG (192) relative to the tracking and control unit (194).

Claims

1. A method for aiming a controlled device at a selected subject, the method comprising the steps of:

providing a first TAG having a wireless communication section and a first location device for determining a location of the first TAG;

further providing a tracking and control unit having a wireless receiver for receiving location information of the first TAG, the tracking and control unit having a second location device for determining a second location, for the controlled device;

determining the first location of the first TAG with the first location device;

transmitting first location information to the receiver of the tracking and control unit;

determining the second location for the controlled device with the second location device;

processing the location information in comparison to the second location for the controlled device to determine the relative position of the first TAG from the controlled device;

determining control values for moving the controlled device to aim at the first TAG; and

moving the controlled device to aim at the first TAG in response to the determined relative position of the first TAG relative to the controlled device.

2. The method according to claim 1, wherein the step of determining the location of the first TAG with the location device comprises the steps of receiving triangulation type position signals with a GPS receiver, and determining the position from the received position signals.

3. The method according to claim 2, wherein the step of determining the location of the controlled device with the second location device comprises the steps of receiving triangulation type position signals with a GPS receiver, and determining the position from the received position signals.

4. The method according to claim 3, wherein the controlled device is a video camera, and the method further comprises the steps of:

recording video of the selected subject;

determining the position of the selected subject relative to a view frame of the video camera, in which the view frame includes an inner focal region and an outer focal region;

determining the position of the selected subject according to the first location of the first TAG; and

automatically moving the video camera to dispose the selected subject within the inner focal region in response to determining the selected subject is disposed within the outer focal region.

5. The method according to claim 1, further comprising the steps of:

providing a second TAG having a second wireless communication section and a third location device for determining a third location, which is for the second TAG;

mounting the first TAG to a first subject;

mounting the second TAG to a second subject;

determining the third location relating to the second TAG with the third location device;

transmitting third location information from the second wireless communication section to the receiver of the tracking and control unit; and

determining the selected subject at which to aim the controlled device according to an automatic process defined by location parameters relating to the location of the first TAG mounted to the first subject and the third location relating to the second TAG mounted to the second subject.

6. The method according to claim 5, wherein the step of selecting the subject further comprises the step of the location parameters being defined by the step of comparing the accelerations of the first TAG and the second TAG.

7. The method according to claim 5, further comprising the steps of:

providing a third TAG having a third wireless communication section and a fourth location device for determining a fourth location, for the third TAG;

mounting the third TAG to a third subject;

determining a fourth location relating to the third TAG with the third location device;

transmitting fourth location information from the third wireless communication section to the receiver of the tracking and control unit; and

wherein the step of selecting the subject at which to aim the controlled device comprises automatically selecting the closest of the first TAG and the second TAG to the third TAG.

8. The method according to claim 5, wherein the step of selecting the subject further comprises the step of the location parameters comprises the steps of:

determining a line of sight for the controlled device;

comparing the distances of each of the first and second TAGS to the line of sight of the controlled device to determine an offset value for each of the first and second TAGS; and

wherein the step of selecting the subject at which to aim the controlled device comprises automatically selecting the first TAG and the second TAG which have the smallest offset value, to determine which of the first and second subjects are closest to the line of sight of the controlled device.

9. A method for aiming a video camera at a selected subject, the method comprising the steps of:

providing a first TAG having a wireless communication section and a first location device for determining a location of the first TAG;

further providing a tracking and control unit having a wireless receiver for receiving location information of the first TAG, the tracking and control unit having a second location device for determining a second location, for the video camera;

determining the first location of the first TAG with the first location device;

transmitting first location information to the receiver of the tracking and control unit;

determining the second location for the video camera with the second location device;

processing the location information in comparison to the second location for the video camera to determine the relative position of the first TAG from the video camera;

determining control values for moving the video camera to aim at the first TAG; and

moving the video camera to aim at the first TAG in response to the determined relative position of the first TAG relative to the video camera;

recording video of the selected subject;

determining the position of the selected subject relative to a view frame of the video camera, in which the view frame includes an inner focal region and an outer focal region;

determining the position of the selected subject according to the first location of the first TAG; and

automatically moving the video camera to dispose the selected subject within the inner focal frame in response to determining the selected subject is disposed within outside of the inner focal region.

10. The method according to claim 9, wherein the step of determining the location of the first TAG with the location device comprises the steps of receiving triangulation type position signals with a GPS receiver, and determining the position from the received position signal;

and wherein the step of determining the location of the video camera with the second location device comprises the steps of receiving triangulation type position signals with a GPS receiver, and determining the position from the received position signals.

11. The method according to claim 9, further comprising the steps of:

providing a second TAG having a second wireless communication section and a third location device for determining a third location, which is for the second TAG;

mounting the first TAG to a first subject;

mounting the second TAG to a second subject;

determining the third location relating to the second TAG with the third location device;

transmitting third location information from the second wireless communication section to the receiver of the tracking and control unit; and

determining the selecting subject at which to aim the video camera according to an automatic process defined by location parameters relating to the location of the first TAG mounted to the first subject and the third location relating to the second TAG mounted to the second subject.

12. The method according to claim 11, wherein the step of selecting the subject further comprises the step of the location parameters being defined by the step of comparing the accelerations of the first TAG and the second TAG.

13. The method according to claim 11, further comprising the steps of:

providing a third TAG having a third wireless communication section and a fourth location device for determining a fourth location, for the third TAG;

mounting the third TAG to a third subject;

determining a fourth location relating to the third TAG with the third location device;

transmitting fourth location information from the third wireless communication section to the receiver of the tracking and control unit; and

wherein the step of selecting the subject at which to aim the video camera comprises automatically selecting the closest of the first TAG and the second TAG to the third TAG.

14. The method according to claim 11, wherein the step of selecting the subject further comprises the step of the location parameters comprises the steps of:

determining a line of sight for the controlled device;

comparing the distances of each of the first and second TAGS to the line of sight of the video camera to determine an offset value for each of the first and second TAGS; and

wherein the step of selecting the subject at which to aim the video camera e comprises automatically selecting the first TAG and the second TAG which have the smallest offset value, to determine which of the first and second subjects are closest to the line of sight of the controlled device.

15. A method for aiming a controlled device at a selected subject, the method comprising the steps of:

providing a TAG having a wireless receiver and a sonic transducer, and a tracking and control unit having a wireless transmitter and at least two, spaced apart sonic transducers;

emitting a wireless command signal from the wireless transmitter of the tracking and control unit;

receiving the wireless command signal with the wireless receiver of the TAG;

emitting a sonic burst with the sonic transducer of the TAG in response to receiving the wireless command signal;

receiving the sonic burst with the two, spaced apart sonic transducers of the tracking and control unit, and emitting transducer signals in response thereto;

processing the transducer signals to determine the relative position of the TAG from the device being aimed;

determining control values for moving the device to aim at the TAG; and

moving the device to aim at the TAG in response to the determined relative position of the TAG relative to the device.

16. The method according to claim 15, wherein the step of emitting the sonic bursts further comprises the step of emitting a series of sonic bursts in response to receiving the wireless command signal.

18. The method according to claim 15, further comprising the steps of:

providing a second TAG having a second wireless communication section and a third location device for determining a third location, which is for the second TAG;

mounting the first TAG to a first subject;

mounting the second TAG to a second subject;

determining the third location relating to the second TAG with the third location device;

transmitting third location information from the second wireless communication section to the receiver of the tracking and control unit; and

determining the selected subject at which to aim the controlled device according to an automatic process defined by location parameters relating to the location of the first TAG mounted to the first subject and the third location relating to the second TAG mounted to the second subject.

19. The method according to claim 18, wherein the step of selecting the subject further comprises the step of the location parameters being defined by the step of comparing the accelerations of the first TAG and the second TAG.

20. The method according to claim 18, further comprising the steps of:

providing a third TAG having a third wireless communication section and a fourth location device for determining a fourth location, for the third TAG;

mounting the third TAG to a third subject;

determining a fourth location relating to the third TAG with the third location device;

transmitting fourth location information from the third wireless communication section to the receiver of the tracking and control unit; and

wherein the step of selecting the subject at which to aim the controlled device comprises automatically selecting the closest of the first TAG and the second TAG to the third TAG.

21. The method according to claim 18, wherein the step of selecting the subject further comprises the step of the location parameters comprises the steps of:

determining a line of sight for the controlled device;

comparing the distances of each of the first and second TAGS to the line of sight of the controlled device to determine an offset value for each of the first and second TAGS; and

wherein the step of selecting the subject at which to aim the controlled device comprises automatically selecting the first TAG and the second TAG which have the smallest offset value, to determine which of the first and second subjects are closest to the line of sight of the controlled device.

17. The method according to claim 17, further comprising the steps of:

determining the position of the selected subject relative to a view frame defined for the controlled device, in which the view frame includes an inner focal region and an outer focal region;

determining the position of the selected subject according to the first location of the first TAG; and

automatically moving the controlled device to disposed the selected subject within the inner focal frame in response to determining the selected subject is disposed within the outer focal region.