System and method for determining airtime using free fall
First Claim
1. A method for determining airtime of a moving sportsman, comprising:
- processing data from one or more accelerometers attached to the sportsman, to determine when the sportsman is in free-fall; and
determining a time period corresponding to the free-fall.
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Abstract
A system for determining airtime of a moving sportsman includes at least one accelerometer for detecting vibration or acceleration of the sportsman. A processor in communication with the at least one accelerometer processing signals from the accelerometer to determine free-fall. A pressure sensor may be used to determine change in altitude and the processor may process signals from the pressure sensor with the accelerometer signals to determine airtime and drop distance during free-fall. A method for determining airtime of a moving sportsman includes processing data from one or more accelerometers attached to the sportsman, to determine when the sportsman is in free-fall, and determining a time period corresponding to the free-fall.
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Citations
24 Claims
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1. A method for determining airtime of a moving sportsman, comprising:
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processing data from one or more accelerometers attached to the sportsman, to determine when the sportsman is in free-fall; and determining a time period corresponding to the free-fall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for determining airtime of a moving sportsman, comprising:
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at least one accelerometer for detecting acceleration of the sportsman; and a processor in communication with the at least one accelerometer, for processing signals from the accelerometer to determine free-fall. - View Dependent Claims (10, 11, 12, 13)
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14. A system for determining airtime of a moving sportsman, comprising:
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at least one accelerometer for generating signals indicative of vibration; a pressure sensor for determining change in altitude; and a processor for processing the signals from the accelerometer and pressure sensor to determine airtime and drop distance during free-fall. - View Dependent Claims (15, 16, 17, 18)
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19. An airtime measurement system, comprising:
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linear accelerometers for measuring acceleration in three translational directions; a processor for receiving and summing signals indicative of acceleration from the linear accelerometers, the processor timing a period in which the signals from the accelerometers sum to zero; wherein the processor identifies the period in which the signals sum to zero as a period of free-fall. - View Dependent Claims (20)
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21. An accelerometer suite for determining airtime of a vehicle ridden by a sportsman, comprising:
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three linear accelerometers for outputting signals indicative of vibrational noise in the vehicle; conditioning electronics for strengthening and filtering the signals and outputting conditioned signals; interface electronics in communication with the conditioning electronics, for converting the conditioned signals from analog to digital; and a processor for receiving and processing the conditioned signals to determine airtime; wherein the processor identifies a period of absence in vibrational noise as a period of free-fall. - View Dependent Claims (22, 23, 24)
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Specification