US20130123070A1 - Cadence detection system and cadence sensor therefor - Google Patents
Cadence detection system and cadence sensor therefor Download PDFInfo
- Publication number
- US20130123070A1 US20130123070A1 US13/559,505 US201213559505A US2013123070A1 US 20130123070 A1 US20130123070 A1 US 20130123070A1 US 201213559505 A US201213559505 A US 201213559505A US 2013123070 A1 US2013123070 A1 US 2013123070A1
- Authority
- US
- United States
- Prior art keywords
- cadence
- detection system
- exercise device
- exercise
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0062—Monitoring athletic performances, e.g. for determining the work of a user on an exercise apparatus, the completed jogging or cycling distance
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/0002—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms
- A63B22/001—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms by simultaneously exercising arms and legs, e.g. diagonally in anti-phase
- A63B22/0012—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms by simultaneously exercising arms and legs, e.g. diagonally in anti-phase the exercises for arms and legs being functionally independent
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
- A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/20—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements using rollers, wheels, castors or the like, e.g. gliding means, to be moved over the floor or other surface, e.g. guide tracks, during exercising
- A63B22/201—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements using rollers, wheels, castors or the like, e.g. gliding means, to be moved over the floor or other surface, e.g. guide tracks, during exercising for moving a support element in reciprocating translation, i.e. for sliding back and forth on a guide track
- A63B22/203—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements using rollers, wheels, castors or the like, e.g. gliding means, to be moved over the floor or other surface, e.g. guide tracks, during exercising for moving a support element in reciprocating translation, i.e. for sliding back and forth on a guide track in a horizontal plane
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0087—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/0057—Means for physically limiting movements of body parts
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/16—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0087—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
- A63B2024/009—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load the load of the exercise apparatus being controlled in synchronism with visualising systems, e.g. hill slope
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/16—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles
- A63B2069/164—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles supports for the rear of the bicycle, e.g. for the rear forks
- A63B2069/165—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles supports for the rear of the bicycle, e.g. for the rear forks rear wheel hub supports
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/16—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles
- A63B2069/168—Force transfer through the rim of the wheel
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
- A63B21/0051—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using eddy currents induced in moved elements, e.g. by permanent magnets
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/008—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/008—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters
- A63B21/0085—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters using pneumatic force-resisters
- A63B21/0088—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters using pneumatic force-resisters by moving the surrounding air
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/22—Resisting devices with rotary bodies
- A63B21/225—Resisting devices with rotary bodies with flywheels
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/40—Interfaces with the user related to strength training; Details thereof
- A63B21/4027—Specific exercise interfaces
- A63B21/4033—Handles, pedals, bars or platforms
- A63B21/4034—Handles, pedals, bars or platforms for operation by feet
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2210/00—Space saving
- A63B2210/50—Size reducing arrangements for stowing or transport
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/17—Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
- A63B2220/805—Optical or opto-electronic sensors
Definitions
- Cycling is a very popular activity for both recreational riders and racing enthusiasts alike. Professional cyclists and triathletes are earning large sums of money through races, sponsorships, and advertisements. Moreover, cycling provides many health benefits for average riders in that it strengthens various muscle groups along with providing aerobic and anaerobic exercise to the user. Furthermore, physicians and physical therapists are turning to stationary cycle devices to rehabilitate patients from automobile, athletic, or work-related injuries. Because of this, there is a demand for indoor, stationary exercise trainers that simulate actual outdoor riding so that professional and recreational cyclists may train or exercise regardless of the weather, and that patients can rehabilitate injuries in the presence of their physicians and physical therapists.
- the microprocessor of the eddy current trainer is also connected to an electric drive circuit that energizes the electromagnets of the variable resistance device at predetermined times and power levels in order to simulate changes in terrain.
- An eddy current trainer that uses electromagnets to simulate real life bicycling road conditions, and that uses a microprocessor to evaluate the user's performance as stated above, is currently sold under the trademark COMPUTRAINER by Racermate, Inc., Seattle, Wash.
- a cadence detection system for use during exercise.
- the system comprises an exercise device having a moveable drivetrain configured to provide a cadence.
- the moveable drivetrain includes a target surface.
- the system also includes 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 includes 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.
- the system also includes 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.
- a cadence detection system for use during exercise.
- the system includes at least two exercise devices having moveable drivetrains. Each device is configured to generate a unique cadence and the moveable drivetrains each includes a target surface.
- the system also includes an optical sensor associated with each exercise device and placed on a surface separate from the associated exercise device. Each optical sensor is positioned in optical view of the target surface of the respective moveable drivetrain.
- 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, and are configured to generate electrical signals based on the detected optical signals.
- the system also includes 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.
- a method for detecting cadence during stationary exercise. The method includes 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.
- FIG. 1 is a perspective view of one example of a cadence detection system formed in accordance with aspects of the present disclosure
- FIG. 2A is a partial elevational view of the cadence detection system of FIG. 1 depicting one example of a cadence sensor in cross section and a pedal of an associated stationary bike, indoor cycle trainer, bicycle trainer, or the like, positioned along a portion of its down stroke;
- FIG. 2B is a partial elevational view of the cadence detection system of FIG. 1 depicting one example of a cadence sensor in cross section and a pedal of an associated stationary bike, indoor cycle trainer, bicycle trainer, or the like, positioned at the bottom of its down stroke;
- FIG. 3 is a block diagram of one example of a sensor suitable for use in the cadence detection system of FIG. 1 ;
- FIG. 4 is a block diagram of one example of a multi rider environment employing a centralized computing device
- FIG. 5 is a side elevational view of another example of a cadence detection system formed in accordance with aspects of the present disclosure
- FIG. 6 is a side elevational view of yet another example of a cadence detection system formed in accordance with aspects of the present disclosure
- FIG. 7 is a perspective view of still another example of a cadence detection system formed in accordance with aspects of the present disclosure.
- the system 20 includes a cadence sensor 22 and an exercise device 24 , such as a stationary bike, indoor cycle trainer, bicycle trainer, or the like.
- the exercise device 24 includes a pedal powered exercise device in the form of a bicycle 26 having pedal driven drivetrain 28 suitably mounted to an exercise apparatus or trainer 30 .
- the cadence sensor 22 detects movement of at least one component of the drive train 28 during operation of the exercise device 24 , which in turn, may be utilized for calculating the cadence of the exercise device 24 .
- the exercise device 24 may include a bicycle 26 operatively mounted to a trainer 30 .
- the bicycle 26 in one embodiment includes a frame 34 , a front fork 36 mounted to the front of the frame 34 , and handlebars 38 mounted to an upper end of front fork 36 .
- a front wheel 40 is mounted for rotation on front fork 36 in a conventional manner. Alternatively, the front wheel 40 may be omitted and the front fork 36 may be mounted onto a stationary mount.
- the bicycle 26 also includes a seat 42 and a driven rear wheel 46 , which are mounted to the frame 34 rearwardly of the handlebars 38 and the front wheel 40 .
- the bicycle 26 further includes a drivetrain 28 to transmit power from the rider to the driven rear wheel 46 .
- the frame 34 further supports a crank set 50 .
- the crank set 50 is operatively connected to the frame 34 via a spindle/bearing combination known as a bottom bracket (hidden in FIG. 1 ).
- the crank set 50 generally includes one or more chain rings 54 or front sprockets, a left hand crank arm 56 and a right hand crank arm (hidden in FIG. 1 ), a left hand pedal 58 mounted on a left-hand crank arm 56 , and a right-hand pedal (hidden in FIG. 1 ) mounted on a right-hand crank arm.
- Rotation of the left-hand and right-hand pedals imparts rotation to a hub 60 of the rear wheel 46 via a chain and cogwheel or rear sprocket arrangement 64 .
- the rotational speed, in revolutions per minute, of the crank set 50 or parts thereof, is typically referred to as “cadence.”
- the training device 30 may include a frame 70 , a resistance generator 74 , such as an eddy current brake, wind brake, fluid brake, etc., a shaft 76 and a flywheel 78 .
- the frame 70 is formed of a U-shaped forward frame member 80 and a U-shaped rear frame member 82 .
- the ends of the frame members 80 and 82 are pivotally joined at a pivot 84 .
- the forward and rear U-shaped frame members 80 and 82 rotate with respect to each other around pivot 84 . This rotational movement allows the frame 70 to be moved between a collapsed position (not shown) and an extended position ( FIG. 1 ). In the collapsed position, the forward and rear frame members 80 and 82 lie adjacent to each other while in the extended position or the forward and rear members form an upside-down V, as illustrated in FIG. 1 .
- the rear end of the frame 34 of the bicycle 26 is mounted within the frame 70 of the training device 30 at the pivot point 84 .
- the resistance generator 74 is mounted on the lower crossbar of the rear U-shaped frame member 82 .
- the resistance generator 74 is in the form of an eddy current brake that includes a housing in which the mechanics and electronics for the eddy current brake are located.
- a shaft 76 extends from the resistance generator 74 and is operatively coupled thereto.
- the shaft 76 is rotatably mounted within opposing bearings (hidden in FIG. 1 ) in the arms of a support bracket 88 .
- the support bracket 88 is, in turn, attached to the rear U-shaped frame member 82 so that the rear wheel 46 contacts the shaft 76 and causes the shaft to rotate as the rear wheel 146 rotates.
- a computing device 90 which may be in the form of a bicycle computer, a microprocessor, a programmable circuitry, or the like, may be secured to or otherwise associated with the bicycle 26 .
- the computing device 90 is secured to the bicycle in a suitable location, such as to the handlebar 38 .
- the computing device 90 may include a memory for storing information pertaining to one or more operating characteristics of the bicycle 26 , such as elapsed time, speed, distance, etc., and an optional display for conveying relevant information to the user during operation of the bicycle 26 .
- the computing device 90 may also be connected to an electric drive circuit of the eddy current brake for energizing the electromagnets of the eddy current brake at predetermined times and power levels in order to simulate changes in terrain.
- the computing device 90 can be centralized and/or located remote from the exercise device 24 , and in one embodiment shown in FIG. 4 , is capable of supporting a multi-rider environment via suitable software, such as those commercially available from Racermate, Inc., Seattle, Wash.
- a display 92 may be associated with each exercise device for conveying operational information of the associated exercise device and/or operational information from one or more of the other exercise devices in the multi-rider environment.
- FIG. 1 further illustrates a cadence sensor 22 that is positioned on a support surface, such as the floor, below one of the bicycle pedals, such as left pedal 58 .
- the cadence sensor 22 is configured to sense each revolution of the pedal 58 , and generate signals indicative thereof.
- the generated signals can be outputted to the computing device 90 for processing, display, etc.
- the signals generated by the cadence sensor 22 can be subsequently utilized by the computing device 90 to calculate the number of pedal strokes per minute or revolutions per minute (RPMs) of the pedals. It will be appreciated that the revolutions per minute (RPMs) of the pedals can be calculated by known techniques in the art.
- the computing device 90 may include a timer for keeping time, and a counter for tracking the number of signals generated by the cadence sensor 22 over a period of time. The computing device 90 may then calculate the pedal revolutions per minute (RPMs) by taking the number of signals generated by the cadence sensor 22 and dividing that by the period of time over which the signals where counted.
- the period of time for example, can be a minute (i.e., 60 seconds) or any fraction of a minute (e.g., 1 ⁇ 4, 1/10, 1/20, 1/30, 1/60, etc.).
- the cadence sensor 22 may be configured to accumulate the number of instances the component of the drivetrain is detected over a predetermined period of time.
- the cadence sensor 22 may be further configured to transmit the accumulated signals to the computing device at a determined time interval for further processing.
- the cadence sensor 22 may also include circuitry to process the signals indicative of each revolution of the pedal 58 , and to calculate the current cadence associated with the exercise device.
- the cadence sensor 22 generally includes a sensor 96 mounted, for example, within a protective enclosure 98 .
- the cadence sensor 22 acts as a proximity sensor or switch that generates a signal upon detection of a target, such as the pedal 58 , and as such, generates a signal for each revolution of the pedal.
- the sensor 96 comprises an emitter 102 , a detector 104 , and associated device circuitry 106 .
- the emitter 102 such as an LED, emits a beam of light 110 (See FIGS. 2A and 2B ), such as infrared light, at a high speed, under control of the device circuitry 106 .
- the detector 104 such as a photodiode or the like, senses any of the emitted beams of light 110 that was reflected off the target, such as the bicycle pedal 58 , referred herein as “reflected light 114 .” In response to the reception of reflected light 114 (See FIG.
- the detector 104 and/or device circuitry 106 generates a signal for output via a communication link, such as signal cable 116 , to the computing device 90 or the like.
- the enclosure 98 includes a base 124 detachably connected to a lid or cover 128 via any fastening technique that provides a secure coupling between the base and the cover 128 when connected thereto but also provides selective decoupling for separating the base and the cover.
- One such fastening technique that may be practiced with embodiments of the present invention is a threaded connection, as shown in FIGS. 2A and 2B .
- the sensor 96 is mounted on a planar surface of the base 124 , such as upon boss 130 , and aligned below a centralized opening or window 132 in the cover 128 .
- a protective lens 138 is positioned over the sensor 96 and aligned with the opening 132 of the cover 128 between the base 124 and the cover 128 . In the embodiment shown, the lens 138 and the boss 130 of the base 124 cooperate to ensconce the sensor 96 .
- the lens 138 can be made of glass, plastic, etc., and is translucent or transparent such that the beam of light emitted from the sensor 96 (via emitter 102 ) can pass through the window portion 140 of the lens 138 to the exterior of the enclosure 98 a predetermined distance, thereby defining the nominal range of the cadence sensor 22 and shown as by the arrow 144 in FIG. 2B , and similarly, reflected light 114 of a suitable intensity, which has been reflected by the target, can pass back through the lens 138 and be detected by the sensor 96 (via detector 104 ).
- a seal 146 may be provided between the cover 128 and the protective lens 138 in order to keep dirt and other debris from the sensor 96 .
- the lens 138 is dome shaped and is constructed out of transparent glass. In this embodiment, the lens 138 is of suitable thickness to provide compression strength to withstand the force of a rider's foot stepping or falling onto the sensor 22 .
- the rider rotates the pedals of the bicycle 26 , which in turn, drives the rear wheel 46 against the shaft 76 , which in turn, rotates against the resistance generated by the resistance generator 74 .
- the computing device 90 outputs commands to the resistance generator. These commands can, for example, instruct the resistance generator to energize the load generator, such as an eddy brake, at predetermined times and power levels in order to simulate changes in terrain.
- the cadence sensor 22 detects the rotation of the drivetrain 28 , and if desired, calculates the cadence of the rider in real-time or near real-time (e.g., rolling increment of 1 second, 5 seconds, etc.).
- the device circuitry 106 drives the emitter 102 to emit a beam of light 110 , such as infrared light, at high speed.
- the beam of light 114 emitted from the emitter 102 passes through the lens 138 and out through the opening 132 of the cover 128 to the nominal range 144 of the cadence sensor 22 .
- the pedal passes through the nominal range 144 of the cadence sensor 22 .
- the beam of light 110 emitted from the emitter 102 reflects off of the pedal 58 as reflected light 114 back toward the detector 104 .
- the detector 104 detects the reflected light 114 , and in response to the detection of the reflected light 114 , the device circuitry 106 and/or the detector 104 generates a signal for output via a communication link, such as signal cable 116 .
- the cadence sensor 22 generates a signal for each revolution of the pedal 58 .
- the generated signals can be transmitted to computing device 90 or the like and utilized thereby for calculating the number of pedal strokes per minute or revolutions per minute (RPMs) of the pedals.
- the cadence sensor 22 is arranged and configured such that a signal is generated when the pedal 58 is positioned at its maximum or lowest position during its down stroke.
- a cadence detection system 220 , 320 may be comprised of an upright type or recumbent style stationary bicycle 224 , 324 , respectively, and the cadence sensor 22 , as best shown in FIGS. 5 and 6 .
- a cadence detection system 420 may be comprised of a cross country skiing trainer 424 and the cadence sensor 22 , as best shown in FIG. 7 .
- Other non-pedal powered exercise devices may also be employed in embodiments of the present disclosure, such as stair stepping machines, rowing machines etc.
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.
Description
- This application claims the benefit of Provisional Application No. 61/512,858, filed Jul. 28, 2011, which is hereby incorporated by reference.
- Cycling is a very popular activity for both recreational riders and racing enthusiasts alike. Professional cyclists and triathletes are earning large sums of money through races, sponsorships, and advertisements. Moreover, cycling provides many health benefits for average riders in that it strengthens various muscle groups along with providing aerobic and anaerobic exercise to the user. Furthermore, physicians and physical therapists are turning to stationary cycle devices to rehabilitate patients from automobile, athletic, or work-related injuries. Because of this, there is a demand for indoor, stationary exercise trainers that simulate actual outdoor riding so that professional and recreational cyclists may train or exercise regardless of the weather, and that patients can rehabilitate injuries in the presence of their physicians and physical therapists.
- Various stationary cycle trainers have been presented to address this need. Conventional stationary cycle trainers simulate the characteristics of outdoor training by applying a variable resistance device to provide resistance against the pedaling of the rider. The variable resistance device mimics the resistances a rider would face during actual outdoor training such as wind resistance, rolling resistance, and resistances due to riding over varying terrain. The variable resistance devices may be of the wind, fluid, or roller type. Recently, the use of “eddy current” trainers has achieved widespread use due to their ability to simulate the resistance (loads) felt by riders during actual riding.
- Further advancements in “eddy current” trainers have allowed for the monitoring and evaluation of the rider's or patient's performance during the exercise session. These trainers generally use a microprocessor/sensor arrangement to calculate several session parameters, such as heart rate, energy exertion, time elapsed, distance and cadence. Currently available sensors for sensing cadence include a reed switch or hall effect sensor mounted directly to the cycle frame, and a magnet base mounted for rotation with one of the cycle crank arms or chain rings. Such cadence sensors generate a pulse signal to be transmitted to the microprocessor each time the magnet base passes the reed switch or hall effect sensor.
- The microprocessor of the eddy current trainer is also connected to an electric drive circuit that energizes the electromagnets of the variable resistance device at predetermined times and power levels in order to simulate changes in terrain. An eddy current trainer that uses electromagnets to simulate real life bicycling road conditions, and that uses a microprocessor to evaluate the user's performance as stated above, is currently sold under the trademark COMPUTRAINER by Racermate, Inc., Seattle, Wash.
- This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
- In accordance with aspects of the present disclosure, a cadence detection system is provided for use during exercise. The system comprises an exercise device having a moveable drivetrain configured to provide a cadence. The moveable drivetrain includes a target surface. The system also includes 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. In some embodiments, the optical sensor includes 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. The system also includes 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.
- In accordance with another aspect of the present disclosure, a cadence detection system is provided for use during exercise. The system includes at least two exercise devices having moveable drivetrains. Each device is configured to generate a unique cadence and the moveable drivetrains each includes a target surface. The system also includes an optical sensor associated with each exercise device and placed on a surface separate from the associated exercise device. Each optical sensor is positioned in optical view of the target surface of the respective moveable drivetrain. In some embodiments, 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, and are configured to generate electrical signals based on the detected optical signals. The system also includes 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.
- In accordance with another aspect of the present disclosure, a method is provided for detecting cadence during stationary exercise. The method includes 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.
- The foregoing aspects and many of the attendant advantages of this invention will become more readily appreciated as the same become better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein:
-
FIG. 1 is a perspective view of one example of a cadence detection system formed in accordance with aspects of the present disclosure; -
FIG. 2A is a partial elevational view of the cadence detection system ofFIG. 1 depicting one example of a cadence sensor in cross section and a pedal of an associated stationary bike, indoor cycle trainer, bicycle trainer, or the like, positioned along a portion of its down stroke; -
FIG. 2B is a partial elevational view of the cadence detection system ofFIG. 1 depicting one example of a cadence sensor in cross section and a pedal of an associated stationary bike, indoor cycle trainer, bicycle trainer, or the like, positioned at the bottom of its down stroke; -
FIG. 3 is a block diagram of one example of a sensor suitable for use in the cadence detection system ofFIG. 1 ; -
FIG. 4 is a block diagram of one example of a multi rider environment employing a centralized computing device; -
FIG. 5 is a side elevational view of another example of a cadence detection system formed in accordance with aspects of the present disclosure; -
FIG. 6 is a side elevational view of yet another example of a cadence detection system formed in accordance with aspects of the present disclosure; -
FIG. 7 is a perspective view of still another example of a cadence detection system formed in accordance with aspects of the present disclosure. - The detailed description set forth below in connection with the appended drawings where like numerals reference like elements is intended as a description of various embodiments of the disclosed subject matter and is not intended to represent the only embodiments. Each embodiment described in this disclosure is provided merely as an example or illustration and should not be construed as preferred or advantageous over other embodiments. The illustrative examples provided herein are not intended to be exhaustive or to limit the claimed subject matter to the precise forms disclosed. Similarly, any steps described herein may be interchangeable with other steps, or combinations of steps, in order to achieve the same or substantially similar result.
- In the following description, numerous specific details are set forth in order to provide a thorough understanding of exemplary embodiments of the present disclosure. It will be apparent to one skilled in the art, however, that many embodiments of the present disclosure may be practiced without some or all of the specific details. In some instances, well-known process steps have not been described in detail in order not to unnecessarily obscure various aspects of the present disclosure. Further, it will be appreciated that embodiments of the present disclosure may employ any combination of features described herein.
- Referring now to
FIG. 1 , there is shown an exemplary embodiment of a cadence detection system, generally designated 20, formed in accordance with aspects of the present disclosure. Generally, thesystem 20 includes acadence sensor 22 and anexercise device 24, such as a stationary bike, indoor cycle trainer, bicycle trainer, or the like. In the example depicted inFIG. 1 , theexercise device 24 includes a pedal powered exercise device in the form of abicycle 26 having pedal drivendrivetrain 28 suitably mounted to an exercise apparatus ortrainer 30. As will be described in more detail below, thecadence sensor 22 detects movement of at least one component of thedrive train 28 during operation of theexercise device 24, which in turn, may be utilized for calculating the cadence of theexercise device 24. - Still referring to
FIG. 1 , the components of thecadence detection system 20 will now be described in more detail. As best shown in the embodiment ofFIG. 1 , theexercise device 24 may include abicycle 26 operatively mounted to atrainer 30. Thebicycle 26 in one embodiment includes aframe 34, afront fork 36 mounted to the front of theframe 34, andhandlebars 38 mounted to an upper end offront fork 36. Afront wheel 40 is mounted for rotation onfront fork 36 in a conventional manner. Alternatively, thefront wheel 40 may be omitted and thefront fork 36 may be mounted onto a stationary mount. Thebicycle 26 also includes aseat 42 and a drivenrear wheel 46, which are mounted to theframe 34 rearwardly of thehandlebars 38 and thefront wheel 40. - The
bicycle 26 further includes adrivetrain 28 to transmit power from the rider to the drivenrear wheel 46. In that regard, theframe 34 further supports a crank set 50. The crank set 50 is operatively connected to theframe 34 via a spindle/bearing combination known as a bottom bracket (hidden inFIG. 1 ). The crank set 50 generally includes one or more chain rings 54 or front sprockets, a left hand crankarm 56 and a right hand crank arm (hidden inFIG. 1 ), aleft hand pedal 58 mounted on a left-hand crankarm 56, and a right-hand pedal (hidden inFIG. 1 ) mounted on a right-hand crank arm. Rotation of the left-hand and right-hand pedals imparts rotation to ahub 60 of therear wheel 46 via a chain and cogwheel orrear sprocket arrangement 64. The rotational speed, in revolutions per minute, of the crank set 50 or parts thereof, is typically referred to as “cadence.” - Still referring to
FIG. 1 , thetraining device 30, on which thebicycle 26 is mounted, may include aframe 70, aresistance generator 74, such as an eddy current brake, wind brake, fluid brake, etc., ashaft 76 and aflywheel 78. Theframe 70 is formed of a U-shapedforward frame member 80 and a U-shapedrear frame member 82. The ends of theframe members pivot 84. The forward and rearU-shaped frame members pivot 84. This rotational movement allows theframe 70 to be moved between a collapsed position (not shown) and an extended position (FIG. 1 ). In the collapsed position, the forward andrear frame members FIG. 1 . - The rear end of the
frame 34 of thebicycle 26 is mounted within theframe 70 of thetraining device 30 at thepivot point 84. When placed in theframe 70, the rotational axis of therear wheel 46 as defined by thehub 60 is aligned with thepivot 84. Theresistance generator 74 is mounted on the lower crossbar of the rearU-shaped frame member 82. In the embodiment shown, theresistance generator 74 is in the form of an eddy current brake that includes a housing in which the mechanics and electronics for the eddy current brake are located. Ashaft 76 extends from theresistance generator 74 and is operatively coupled thereto. Theshaft 76 is rotatably mounted within opposing bearings (hidden inFIG. 1 ) in the arms of asupport bracket 88. Thesupport bracket 88 is, in turn, attached to the rearU-shaped frame member 82 so that therear wheel 46 contacts theshaft 76 and causes the shaft to rotate as therear wheel 146 rotates. - Still referring to
FIG. 1 , acomputing device 90, which may be in the form of a bicycle computer, a microprocessor, a programmable circuitry, or the like, may be secured to or otherwise associated with thebicycle 26. In one embodiment, thecomputing device 90 is secured to the bicycle in a suitable location, such as to thehandlebar 38. Thecomputing device 90 may include a memory for storing information pertaining to one or more operating characteristics of thebicycle 26, such as elapsed time, speed, distance, etc., and an optional display for conveying relevant information to the user during operation of thebicycle 26. In the embodiment shown, thecomputing device 90 may also be connected to an electric drive circuit of the eddy current brake for energizing the electromagnets of the eddy current brake at predetermined times and power levels in order to simulate changes in terrain. Alternatively, thecomputing device 90 can be centralized and/or located remote from theexercise device 24, and in one embodiment shown inFIG. 4 , is capable of supporting a multi-rider environment via suitable software, such as those commercially available from Racermate, Inc., Seattle, Wash. In such an embodiment, a display 92 may be associated with each exercise device for conveying operational information of the associated exercise device and/or operational information from one or more of the other exercise devices in the multi-rider environment. -
FIG. 1 further illustrates acadence sensor 22 that is positioned on a support surface, such as the floor, below one of the bicycle pedals, such asleft pedal 58. Thecadence sensor 22 is configured to sense each revolution of the pedal 58, and generate signals indicative thereof. The generated signals can be outputted to thecomputing device 90 for processing, display, etc. The signals generated by thecadence sensor 22 can be subsequently utilized by thecomputing device 90 to calculate the number of pedal strokes per minute or revolutions per minute (RPMs) of the pedals. It will be appreciated that the revolutions per minute (RPMs) of the pedals can be calculated by known techniques in the art. In that regard, in one embodiment, thecomputing device 90 may include a timer for keeping time, and a counter for tracking the number of signals generated by thecadence sensor 22 over a period of time. Thecomputing device 90 may then calculate the pedal revolutions per minute (RPMs) by taking the number of signals generated by thecadence sensor 22 and dividing that by the period of time over which the signals where counted. The period of time, for example, can be a minute (i.e., 60 seconds) or any fraction of a minute (e.g., ¼, 1/10, 1/20, 1/30, 1/60, etc.). - In other embodiments, the
cadence sensor 22 may be configured to accumulate the number of instances the component of the drivetrain is detected over a predetermined period of time. Thecadence sensor 22 may be further configured to transmit the accumulated signals to the computing device at a determined time interval for further processing. In some embodiments, thecadence sensor 22 may also include circuitry to process the signals indicative of each revolution of the pedal 58, and to calculate the current cadence associated with the exercise device. - Turning now to
FIGS. 2A-2B , there is shown a cross sectional view of one example of thecadence sensor 22 formed in accordance with aspects of the present disclosure. As best shown inFIG. 2A , thecadence sensor 22 generally includes asensor 96 mounted, for example, within aprotective enclosure 98. Generally described, thecadence sensor 22 acts as a proximity sensor or switch that generates a signal upon detection of a target, such as thepedal 58, and as such, generates a signal for each revolution of the pedal. - In the embodiment shown in
FIG. 3 , thesensor 96 comprises anemitter 102, adetector 104, and associateddevice circuitry 106. Theemitter 102, such as an LED, emits a beam of light 110 (SeeFIGS. 2A and 2B ), such as infrared light, at a high speed, under control of thedevice circuitry 106. On the other hand, thedetector 104, such as a photodiode or the like, senses any of the emitted beams of light 110 that was reflected off the target, such as thebicycle pedal 58, referred herein as “reflected light 114.” In response to the reception of reflected light 114 (SeeFIG. 2B ), thedetector 104 and/ordevice circuitry 106 generates a signal for output via a communication link, such assignal cable 116, to thecomputing device 90 or the like. In the embodiment shown inFIGS. 2A and 2B , theenclosure 98 includes a base 124 detachably connected to a lid or cover 128 via any fastening technique that provides a secure coupling between the base and thecover 128 when connected thereto but also provides selective decoupling for separating the base and the cover. One such fastening technique that may be practiced with embodiments of the present invention is a threaded connection, as shown inFIGS. 2A and 2B . Thesensor 96 is mounted on a planar surface of thebase 124, such as uponboss 130, and aligned below a centralized opening orwindow 132 in thecover 128. Aprotective lens 138 is positioned over thesensor 96 and aligned with theopening 132 of thecover 128 between the base 124 and thecover 128. In the embodiment shown, thelens 138 and theboss 130 of the base 124 cooperate to ensconce thesensor 96. Thelens 138 can be made of glass, plastic, etc., and is translucent or transparent such that the beam of light emitted from the sensor 96 (via emitter 102) can pass through thewindow portion 140 of thelens 138 to the exterior of the enclosure 98 a predetermined distance, thereby defining the nominal range of thecadence sensor 22 and shown as by thearrow 144 inFIG. 2B , and similarly, reflectedlight 114 of a suitable intensity, which has been reflected by the target, can pass back through thelens 138 and be detected by the sensor 96 (via detector 104). Aseal 146 may be provided between thecover 128 and theprotective lens 138 in order to keep dirt and other debris from thesensor 96. - In one embodiment, the
lens 138 is dome shaped and is constructed out of transparent glass. In this embodiment, thelens 138 is of suitable thickness to provide compression strength to withstand the force of a rider's foot stepping or falling onto thesensor 22. - The operation of one embodiment of the
cadence detection system 20 in accordance with aspects of the present disclosure will now be described in detail. In operation, the rider rotates the pedals of thebicycle 26, which in turn, drives therear wheel 46 against theshaft 76, which in turn, rotates against the resistance generated by theresistance generator 74. In some embodiments, as the rider turns the pedals, thecomputing device 90 outputs commands to the resistance generator. These commands can, for example, instruct the resistance generator to energize the load generator, such as an eddy brake, at predetermined times and power levels in order to simulate changes in terrain. - During use of the
exercise device 24, thecadence sensor 22 detects the rotation of thedrivetrain 28, and if desired, calculates the cadence of the rider in real-time or near real-time (e.g., rolling increment of 1 second, 5 seconds, etc.). In that regard, thedevice circuitry 106 drives theemitter 102 to emit a beam oflight 110, such as infrared light, at high speed. The beam oflight 114 emitted from theemitter 102 passes through thelens 138 and out through theopening 132 of thecover 128 to thenominal range 144 of thecadence sensor 22. With every revolution of, for example, theleft pedal 58, the pedal passes through thenominal range 144 of thecadence sensor 22. As it passes through the nominal range of thecadence sensor 22, the beam oflight 110 emitted from theemitter 102 reflects off of the pedal 58 as reflected light 114 back toward thedetector 104. Thedetector 104 then detects the reflectedlight 114, and in response to the detection of the reflectedlight 114, thedevice circuitry 106 and/or thedetector 104 generates a signal for output via a communication link, such assignal cable 116. In this way, thecadence sensor 22 generates a signal for each revolution of thepedal 58. The generated signals can be transmitted tocomputing device 90 or the like and utilized thereby for calculating the number of pedal strokes per minute or revolutions per minute (RPMs) of the pedals. In one embodiment, thecadence sensor 22 is arranged and configured such that a signal is generated when thepedal 58 is positioned at its maximum or lowest position during its down stroke. - While the
system 20 has be shown herein and described above with a bicycle/trainer combination as the exercise device, other pedal powered exercise devices and non-pedal powered exercise devices may also be employed. For example, acadence detection system stationary bicycle cadence sensor 22, as best shown inFIGS. 5 and 6 . Additionally, acadence detection system 420 may be comprised of a crosscountry skiing trainer 424 and thecadence sensor 22, as best shown inFIG. 7 . Other non-pedal powered exercise devices may also be employed in embodiments of the present disclosure, such as stair stepping machines, rowing machines etc. - Various principles, representative embodiments, and modes of operation of the present disclosure have been described in the foregoing description. However, aspects of the present disclosure which are intended to be protected are not to be construed as limited to the particular embodiments disclosed. Further, the embodiments described herein are to be regarded as illustrative rather than restrictive. It will be appreciated that variations and changes may be made by others, and equivalents employed, without departing from the spirit of the present disclosure. Accordingly, it is expressly intended that all such variations, changes, and equivalents fall within the spirit and scope of the claimed subject matter.
Claims (20)
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.
2. The cadence detection system of claim 1 , wherein: the emitter has a nominal range; the drivetrain includes a pedal with the target surface thereon and having a pedal stroke; and the target surface of the pedal enters the nominal range at the maximum position of the pedal stroke.
3. The cadence detection system of claim 2 , wherein the maximum position of the pedal stoke occurs at a position closest to the optical sensor.
4. The cadence detection system of claim 1 , wherein the emitter of the optical sensor uses an LED light source, wherein the LED light source emits one of infrared and visible light.
5. The cadence detection system of claim 1 , wherein the surface separate from the exercise device is a substantially horizontal surface that supports the exercise device.
6. The cadence detection system of claim 1 , wherein the computing device includes a display to convey information to a user during operation of the exercise device.
7. The cadence detection system of claim 1 , wherein the computing device is mounted to the exercise device.
8. The cadence detection system of claim 1 , wherein the computing device is capable of simultaneously supporting two or more optical sensors, each optical sensor associated with a discrete exercise device.
9. The cadence detection system of claim 1 , wherein the exercise device includes one of an upright stationary bike, an indoor cycle trainer, a bicycle trainer, a recumbent stationary bike, an elliptical trainer, and a cross country skiing trainer.
10. The cadence detection system of claim 1 , wherein the target surface is at least a part of a pedal or a crankset.
11. A cadence detection system for use during exercise, comprising:
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.
12. The cadence detection system of claim 11 , further comprising a display associated with each exercise device, wherein each display is configured to convey information to a user during operation of the exercise device.
13. The cadence detection system of claim 12 , wherein the information conveyed to the user by the display corresponds to one or more operational parameters of the exercise device associated with the display.
14. The cadence detection system of claim 13 , wherein the information conveyed to the user by the display corresponds to one or more operational parameters of an exercise device associated with a different display and at least one additional user.
15. The cadence detection system of claim 12 , wherein the at least two exercise devices are substantially similar and selected from the group consisting of an upright stationary bike, an indoor cycle trainer, a bicycle trainer, a recumbent stationary bike, an elliptical trainer, and a cross country skiing trainer.
16. A method of detecting cadence during stationary exercise, comprising:
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.
17. The method of claim 16 , wherein the component of the drivetrain enters the nominal range at the maximum stroke position of the drivetrain.
18. The method of claim 17 , wherein the optical sensor is configured to send the signal to the computing device each time the component is detected.
19. The method of claim 17 , wherein the optical sensor is configured to send the signal to the computing device at a determined time interval, the signal transmitting the number of instances the component is detected during said time interval.
20. The method of claim 17 , wherein the computing device displays information associated with operation of the exercise device to a user.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/559,505 US20130123070A1 (en) | 2011-07-28 | 2012-07-26 | Cadence detection system and cadence sensor therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161512858P | 2011-07-28 | 2011-07-28 | |
US13/559,505 US20130123070A1 (en) | 2011-07-28 | 2012-07-26 | Cadence detection system and cadence sensor therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130123070A1 true US20130123070A1 (en) | 2013-05-16 |
Family
ID=48281172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/559,505 Abandoned US20130123070A1 (en) | 2011-07-28 | 2012-07-26 | Cadence detection system and cadence sensor therefor |
Country Status (1)
Country | Link |
---|---|
US (1) | US20130123070A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3009170A1 (en) * | 2014-10-14 | 2016-04-20 | Giant Manufacturing Co., Ltd. | Bicycle trainer |
US9833655B1 (en) * | 2013-01-17 | 2017-12-05 | Christopher G. Gallagher | Modular resistance force system |
WO2018004628A1 (en) * | 2016-06-30 | 2018-01-04 | Ford Global Technologies, Llc | Systems, methods, and devices for frame-mounted pedal cadence sensor |
US20190389524A1 (en) * | 2017-12-18 | 2019-12-26 | Shimano Inc. | Notification system |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4728100A (en) * | 1986-03-13 | 1988-03-01 | Smith Robert S | Exercise pacer |
US5059158A (en) * | 1990-05-08 | 1991-10-22 | E.B.T., Inc. | Electronic transmission control system for a bicycle |
US20050043915A1 (en) * | 2003-08-22 | 2005-02-24 | Takashi Ueda | Measurement apparatus and sensor apparatus |
US20060035758A1 (en) * | 2001-09-24 | 2006-02-16 | Joseph Rogozinski | Man - machine interface improvement |
US20060094569A1 (en) * | 2004-11-01 | 2006-05-04 | Day Franklin J | Exercise machine and method for use in training selected muscle groups |
US20060229163A1 (en) * | 2004-03-09 | 2006-10-12 | Waters Rolland M | User interactive exercise system |
US20060292534A1 (en) * | 2005-06-23 | 2006-12-28 | Christopher Tomes | Stationary virtual cycle system and method for operating the same |
US20070281828A1 (en) * | 2000-03-21 | 2007-12-06 | Rice Michael J P | Games controllers |
US20080015089A1 (en) * | 2006-07-06 | 2008-01-17 | Elisa Hurwitz | Method and apparatus for measuring exercise performance |
US20090088934A1 (en) * | 2007-09-28 | 2009-04-02 | Shimano Inc. | Bicycle control system |
US20090240858A1 (en) * | 2008-03-24 | 2009-09-24 | Shimano Inc. | Wireless communication apparatus |
US20090278734A1 (en) * | 2008-05-09 | 2009-11-12 | Polar Electro Oy | Data Transfer |
US20100048357A1 (en) * | 2005-12-12 | 2010-02-25 | Katsuya Nakagawa | Exercise assisting method, exercise appliance, and information processor |
US20110051340A1 (en) * | 2009-08-28 | 2011-03-03 | Polar Electro Oy | Cycling Computer |
US20120210784A1 (en) * | 2011-02-18 | 2012-08-23 | Polar Electro Oy | Apparatus for Pedalling Measurement Arrangement |
-
2012
- 2012-07-26 US US13/559,505 patent/US20130123070A1/en not_active Abandoned
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4728100A (en) * | 1986-03-13 | 1988-03-01 | Smith Robert S | Exercise pacer |
US5059158A (en) * | 1990-05-08 | 1991-10-22 | E.B.T., Inc. | Electronic transmission control system for a bicycle |
US20070281828A1 (en) * | 2000-03-21 | 2007-12-06 | Rice Michael J P | Games controllers |
US20060035758A1 (en) * | 2001-09-24 | 2006-02-16 | Joseph Rogozinski | Man - machine interface improvement |
US20050043915A1 (en) * | 2003-08-22 | 2005-02-24 | Takashi Ueda | Measurement apparatus and sensor apparatus |
US20060229163A1 (en) * | 2004-03-09 | 2006-10-12 | Waters Rolland M | User interactive exercise system |
US20060094569A1 (en) * | 2004-11-01 | 2006-05-04 | Day Franklin J | Exercise machine and method for use in training selected muscle groups |
US20060292534A1 (en) * | 2005-06-23 | 2006-12-28 | Christopher Tomes | Stationary virtual cycle system and method for operating the same |
US20100048357A1 (en) * | 2005-12-12 | 2010-02-25 | Katsuya Nakagawa | Exercise assisting method, exercise appliance, and information processor |
US20080015089A1 (en) * | 2006-07-06 | 2008-01-17 | Elisa Hurwitz | Method and apparatus for measuring exercise performance |
US20090088934A1 (en) * | 2007-09-28 | 2009-04-02 | Shimano Inc. | Bicycle control system |
US20090240858A1 (en) * | 2008-03-24 | 2009-09-24 | Shimano Inc. | Wireless communication apparatus |
US20090278734A1 (en) * | 2008-05-09 | 2009-11-12 | Polar Electro Oy | Data Transfer |
US20110051340A1 (en) * | 2009-08-28 | 2011-03-03 | Polar Electro Oy | Cycling Computer |
US20120210784A1 (en) * | 2011-02-18 | 2012-08-23 | Polar Electro Oy | Apparatus for Pedalling Measurement Arrangement |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9833655B1 (en) * | 2013-01-17 | 2017-12-05 | Christopher G. Gallagher | Modular resistance force system |
EP3009170A1 (en) * | 2014-10-14 | 2016-04-20 | Giant Manufacturing Co., Ltd. | Bicycle trainer |
US9421417B2 (en) | 2014-10-14 | 2016-08-23 | Giant Manufacturing Co., Ltd. | Bicycle trainer |
WO2018004628A1 (en) * | 2016-06-30 | 2018-01-04 | Ford Global Technologies, Llc | Systems, methods, and devices for frame-mounted pedal cadence sensor |
CN109415104A (en) * | 2016-06-30 | 2019-03-01 | 福特全球技术公司 | System, method and apparatus for frame installing type pedal rhythm sensor |
US20190389524A1 (en) * | 2017-12-18 | 2019-12-26 | Shimano Inc. | Notification system |
US10913505B2 (en) * | 2017-12-18 | 2021-02-09 | Shimano Inc. | Notification system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8062183B2 (en) | Sensing apparatus for use with exercise bicycles | |
JP5666301B2 (en) | Ergonometric training equipment | |
EP3341091B1 (en) | Pedal path of a stepping machine | |
US7806006B2 (en) | Bicycle torque measuring system | |
US20050008992A1 (en) | Apparatus for training on a bicycle connected to the apparatus | |
US8992391B2 (en) | Sizing fit cycle | |
US20120322621A1 (en) | Power measurement device for a bike trainer | |
US8333671B1 (en) | Reciprocating ball sports trainer | |
US20130123070A1 (en) | Cadence detection system and cadence sensor therefor | |
US20060223679A1 (en) | Elliptical exercise device | |
SE467998B (en) | CYCLE eXERCISER | |
SE467997B (en) | CYCLE eXERCISER | |
WO2009034309A1 (en) | Exercise apparatus | |
US20160089072A1 (en) | Crank angle indicating system | |
US11633639B2 (en) | Stationary exercise apparatus for indoor cycling | |
KR20170120285A (en) | System for driving bicycle using virtual reality | |
WO2009034317A2 (en) | Improvements relating to exercise bicycles | |
JP7436398B2 (en) | Method and apparatus for monitoring user effectiveness during exercise machine operation | |
US20040176220A1 (en) | Dual exercise device | |
KR102226708B1 (en) | bicycles for music interlocking movement and study | |
US11644374B2 (en) | Left and right feet pedaling analysis system | |
KR101863963B1 (en) | Performance Evaluation Equipment for bicycle | |
Koninckx et al. | Effect of a novel pedal design on maximal power output and mechanical efficiency in well-trained cyclists | |
CN108144255B (en) | Intelligent game exercise bicycle is felt to body | |
US20050282685A1 (en) | Gym bike that uses the effect of stroboscopic lights for the immediate visual control of the user's flywheel revolution speed |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |