CADENCE DETECTION SYSTEM AND CADENCE SENSOR THEREFOR
First Claim
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1. A cadence detection system for use during exercise, comprising:
- an exercise device having a moveable drivetrain configured to provide a cadence, the moveable drivetrain including a target surface;
an optical sensor placed on a surface separate from the exercise device and positioned in optical view of the target surface of the moveable drivetrain, the optical sensor including an emitter configured to generate an optical signal for output and a detector configured to detect the optical signal after reflection off of the target surface, wherein the optical sensor is configured to generate an electrical signal based on the detected optical signal; and
a computing device configured to receive the electrical signal from the optical sensor and to calculate at least detected optical sensor signal instances received per unit of time.
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Abstract
A cadence detection system may include a cadence sensor and an exercise device, such as a stationary bike, an indoor cycle trainer, a bicycle trainer, a rowing machine, a stair stepping machine, or the like. In operation, the cadence sensor detects movement of at least one component of the drive train of the exercise device during operation thereof, which in turn, may be utilized for calculating the cadence of the exercise device.
19 Citations
20 Claims
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1. A cadence detection system for use during exercise, comprising:
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an exercise device having a moveable drivetrain configured to provide a cadence, the moveable drivetrain including a target surface; an optical sensor placed on a surface separate from the exercise device and positioned in optical view of the target surface of the moveable drivetrain, the optical sensor including an emitter configured to generate an optical signal for output and a detector configured to detect the optical signal after reflection off of the target surface, wherein the optical sensor is configured to generate an electrical signal based on the detected optical signal; and a computing device configured to receive the electrical signal from the optical sensor and to calculate at least detected optical sensor signal instances received per unit of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cadence detection system for use during exercise, comprising:
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at least two exercise devices having moveable drivetrains, each configured to generate a unique cadence, the moveable drivetrains each including a target surface; an optical sensor associated with each exercise device and placed on a surface separate from the associated exercise device, each optical sensor positioned in optical view of the target surface of the respective moveable drivetrain, wherein each of the optical sensors includes an emitter configured to generate optical signals for output and a detector configured to detect the optical signals after reflection off of the respective target surface, wherein each of the optical sensors are configured to generate electrical signals based on the detected optical signals; and a computing device configured to receive the electrical signals from the optical sensors and to calculate at least detected optical sensor signal instances received per unit time. - View Dependent Claims (12, 13, 14, 15)
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16. A method of detecting cadence during stationary exercise, comprising:
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continuously emitting light from a light source having a nominal range; moving a component of a drivetrain into and out of the nominal range; detecting reflected light off of the component; and calculating cadence of the drivetrain. - View Dependent Claims (17, 18, 19, 20)
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Specification