Magneto cyclist power sensor
First Claim
1. A device, mounted on a bicycle front derailleur comprised of a plurality of vibration sensors and an associated electronic measurement and signal processing unit, which computes sensors signal time correlations,wherein, wave speed and tension transmitted by the chain is determined by calculating a chain and a bike vibrations signal time correlation, andwherein, using the tension measurement, the device computes the force and torque applied by the pedals.
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Accused Products
Abstract
The “Magneto Cyclist Power Sensor” is a device that computes “cyclist performance” values of pedal power, pedal force, cycle speed, and used gear position of a bicycle using the a aggregated signals from several vibration sensors that are a part of an assembly attached to the bicycle front derailleur. This device, working in conjunction with data from the internet and the cyclist Bluetooth or USB connected phone, is calibrated using known geographic topography of the riders location, prior information about the particulars of the bicycle (make, model and size) and past riding logs recorded by the device. The “cyclist performance values” can be used for providing the cyclist with a display of the computed values on their phone. The device attached to the front derailleur is composed of magnets, inductors, data acquisition and processing unit. Being attached to the derailleur, the device magnets and inductors move with the chain as the chain moves from gear to gear (also called sprocket).
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Citations
4 Claims
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1. A device, mounted on a bicycle front derailleur comprised of a plurality of vibration sensors and an associated electronic measurement and signal processing unit, which computes sensors signal time correlations,
wherein, wave speed and tension transmitted by the chain is determined by calculating a chain and a bike vibrations signal time correlation, and wherein, using the tension measurement, the device computes the force and torque applied by the pedals.
Specification