DE202006019191U1 - System for measuring the force and movement of a bicycle pedal - Google Patents

System for measuring the force and movement of a bicycle pedal Download PDF

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Publication number
DE202006019191U1
DE202006019191U1 DE202006019191U DE202006019191U DE202006019191U1 DE 202006019191 U1 DE202006019191 U1 DE 202006019191U1 DE 202006019191 U DE202006019191 U DE 202006019191U DE 202006019191 U DE202006019191 U DE 202006019191U DE 202006019191 U1 DE202006019191 U1 DE 202006019191U1
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pedal
remote station
central component
force
sensor
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Aipermon GmbH and Co KG
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow
    • A61B5/221—Ergometry, e.g. by using bicycle type apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B62J45/40—Sensor arrangements; Mounting thereof
    • B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
    • B62J45/411—Torque sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B62J45/40—Sensor arrangements; Mounting thereof
    • B62J45/42—Sensor arrangements; Mounting thereof characterised by mounting
    • B62J45/421—Sensor arrangements; Mounting thereof characterised by mounting at the pedal crank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/08—Pedals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
    • G01L5/225—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to foot actuated controls, e.g. brake pedals

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • General Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

System zur Kraftmessung in mehrere verschiedene Richtungen (je nach baulicher Gegebenheit des Pedals in X, Y und Z Richtung) und Bewegungsanalyse (Kräfteparallelogram) eines Fahrradpedals, wobei eine Gruppe von Sensoren im Pedal selbst, ihre Informationen anhand einer zentralen Stelle mit Sender an eine Gegenstelle übermitteln, welche besagte Informationen sammelt und interpretiert.system for force measurement in several different directions (depending on the structural Givenness of the pedal in X, Y and Z direction) and motion analysis (force parallelogram) a bicycle pedal, with a group of sensors in the pedal itself, their information from a central point with transmitter to one Transmit to remote site, which collects and interprets said information.

Figure 00000001
Figure 00000001

Description

Diese Erfindung beschreibt ein elektronisches System zur Bewegungsanalyse und Kraftmessung an einem Fahrradpedal.These Invention describes an electronic system for motion analysis and force measurement on a bicycle pedal.

Hilfsmittel zur Geschwindigkeitsmessung an Fahrrädern gehören seit langem zum Stand der Technik, Messmittel zur Erfassung der aufgewendeten Kraft existieren ebenfalls schon.aid For speed measurement on bicycles have long been state of the art, Measuring means for detecting the applied force also exist beautiful.

Für medizinische oder sportphysiologische Anwendungen wäre es indess wünschenswert, möglichst präziese Messkurven über die aufgewändeten Kräfte an einem Fahrradpedal zu haben. Entsprechend kostengünstige Herstellung vorausgesetzt sind derartige Messmittel sicher auch für den Massenmarkt interessant, da sich aus der Bewegungskurve die tatsächlich aufgewendete Energie (lies Kalorienverbrauch) und damit der Kraftaufwand des Anwenders viel besser errechnen lassen, denn aus einem an zentraler Stelle (Beispielsweise Rad- oder Pedalnabe, DE 102005010373 A1 ), angebrachten Sensor.For medical or sports physiological applications, however, it would be desirable to have as precise as possible traces of the forces applied to a bicycle pedal. According to cost-effective production provided such measuring means are certainly interesting for the mass market, as can be calculated much better from the motion curve, the energy actually used (read calorie consumption) and thus the effort of the user, because of a central location (for example, wheel or pedal hub . DE 102005010373 A1 ), attached sensor.

Das im folgenden beschriebene System besteht aus einer Reihe von in mindestens ein Pedal (1) des Fahrrads eingebauter Sensoren (4), deren Messdaten von einer zentralen, ebenfalls im Pedal integrierten, Steuerung (2) zusammengefasst und per Drahtlosschnittstelle (3) an eine Gegenstelle (5) zum Sammeln und auswerten der eingehenden Messdaten weitergeleitet werden.The system described below consists of a series of in at least one pedal ( 1 ) of the bicycle's built-in sensors ( 4 ), whose measured data are from a central, also in the pedal integrated control ( 2 ) and via wireless interface ( 3 ) to a remote site ( 5 ) for collecting and evaluating the incoming measurement data.

Dabei werden am Pedal wirkende Kräfte anhand dort angebrachter Kraftsensoren (1) gemessen, welche die jeweilige Kraft als elektrisches Signal an die zentrale Stelle (2) im Pedal weitergelietet werden. Diese zentrale Stelle (2) überführt die eingehenden Messignale in Digitale Daten, welche über die Drahtlosschnittstelle (3) weitergeleitet werden. Aufgrund dessen existiert hier keine Kabelverbindung über bewegliche Teile hinfort.At the same time, forces acting on the pedal are determined on the basis of force sensors ( 1 ), which measures the respective force as an electrical signal to the central point ( 2 ) in the pedal. This central office ( 2 ) transfers the incoming measurement signals into digital data, which are transmitted via the wireless interface ( 3 ) to get redirected. Because of this, there is no cable connection on moving parts hinfort here.

Eine Ausprägung des hier vorgestellten Systems zeichent sich darüber hinaus durch ein besonders hohes Maß an Umweltverträglichkeit aus, da sie die benötigte Energie aus der Bewegungsenergie des Pedals gewinnt und es damit keiner zusätzlichen Battarie bedarf. Ein derartiges System kann wie in 2 dargestellt ausgeführt sein. Bei dieser größten Ausbaustufe ist im Inneren des Pedals (10) an der Trittachse (11) ein Dynamo (12) angebracht, der bei Bewegungsänderung des Pedals Energie erzeugt, die in einer Kapazität (13) gespeichert wird und die Elektronikkomponenten mit Spannung versorgt (aus Gründen der besseren Übersicht in 2 nicht dargestellt). Die Kraftsensoren (14) liefern nicht nur Information über die aufgewendete Kraft, sondern auch deren Verteilung auf vordere und hintere Pedalhälfte. Je nach Bauart des Pedals kann noch ein weiterer Kraftsensor (14) hinzukommen, der Information über wirkende Zugkräfte – zum Beispiel bei Pedalsystemen mit Bindung – liefert (in 2. nicht dargestellt). Zusätzlich liefern ein Beschleunigungs- (15) und Umdrehungs- bzw. Neigungssensor (16) Information über Bewegungsablauf und Richtung. Alle Sensoren (14, 15, 16) stellen ihre Informationen der zentralen Steuereinheit (17) bereit, welche ihrersits die eingehenden Messignale in entsprechend aufbereiteter (Vorverarbeitung) Form mittels einer Drahtlosschnittstelle (18) überträgt. Nicht nur ergibt sich aus der Kombination genannter Sensoren ein sehr viel genaueres Bewegungsbild, als mit bekannten Messmethoden, sondern die Kombination Neigungs- bzw. Umdrehungs- und Beschleunigungssensor ermöglicht darüber hinaus ein vollautomatisches Eichen der Messanlage.A characteristic of the system presented here is also characterized by a particularly high level of environmental compatibility, since it wins the energy required from the kinetic energy of the pedal and thus it requires no additional Battarie. Such a system can, as in 2 be shown represented. At this largest stage of development is inside the pedal ( 10 ) on the tread axis ( 11 ) a dynamo ( 12 ), which generates energy when changing the movement of the pedal, which is in a capacity ( 13 ) and the electronic components are supplied with voltage (for better clarity in 2 not shown). The force sensors ( 14 ) not only provide information about the applied force, but also their distribution to the front and rear pedal half. Depending on the design of the pedal, another force sensor ( 14 ), which provides information about acting tensile forces - for example, in pedal systems with binding - (in 2 , not shown). Additionally, an acceleration ( 15 ) and rotation or tilt sensor ( 16 ) Information about movement and direction. All sensors ( 14 . 15 . 16 ) provide their information to the central control unit ( 17 ), which supply the incoming measurement signals in a correspondingly prepared (preprocessing) form by means of a wireless interface ( 18 ) transmits. Not only does the combination of the mentioned sensors give a much more precise motion picture than with known measuring methods, but the combination of inclination or rotation and acceleration sensor additionally enables a fully automatic calibration of the measuring system.

Im Gegensatz zu anderen vergleichbaren Systemen (z.B: DE 102005010373 A1 ) lässt sich jedes handelsübliche Fahrrad ohne größeren technischen Eingriff mit dem hier beschriebenen System nachrüsten.Unlike other comparable systems (eg: DE 102005010373 A1 ) can be retrofitted to any standard bicycle without major technical intervention with the system described here.

Anwendungsbeispieleapplications

Um ein Rannfahrrad optimal auf seinen Fahrer einzustellen, wird es mit dem beschriebenen System ausgestattet, welches seine Daten an den Mess PC des Rennstalls übermittelt. Der PC zeigt Bewegungsrichtung und Kraftübertragung in jeder Phase der Pedaldrehung an. Anhand dieser Informationen kann das Fahrrad so eingestellt werden, daß der Sportler stets eine optimale Kraftübertragung erziehlt.Around It will be a perfect setting for a Rann bicycle on its driver equipped with the described system which transmits its data transmitted the measuring PC of the racing team. The PC shows direction of movement and power transmission in each phase of the Pedal rotation on. Based on this information, the bike can do so be adjusted that the athlete always an optimal power transmission conceded.

Global eingesetzt könnte das System im verlaufe eines Radrennens oder einer Radrenntour stochastische Daten über die einzelnen Fahrer liefern. Anhand dieser Daten wäre es sozusagen in Echtzeit möglich Rückschlüsse auf die eigesetzte Kraft einzelner Athleten zu schließen. Liegt besagte Kraft ungewöhnlich hoch im Vergleich zu Trainingsergebnissen, so kann eine unangemledte Dopingkontrolle durchgeführt werden, da ja ein Anfangsverdacht gegeben ist (Vgl.: Floyd Landis, Tour de France, 2006).Global could be used the system in the course of a cycle race or a cycle tour stochastic Data about the individual drivers deliver. Based on these data it would be, so to speak possible in real time Conclusions on to close the set power of individual athletes. Lies said force unusually high compared to training results, so may be an unhandled one Doping control performed since there is an initial suspicion (see Floyd Landis, Tour de France, 2006).

Ist das System hinreichend preiswert herstellbar, so kann es auch im Breitensport eingesetzt werden um ein Fahrrad möglichst ergonomisch auf seinen Faherer anzupassen.is The system can be produced sufficiently inexpensively, so it can also be used in the Popular sports are used to make a bike as ergonomic as possible To adapt to the driver.

Selbstverständlich sind auch weit trivialere Szenarien denkbar, beispielsweise als Hilfsmittel zur Überwachung eines medizinischen Diätprogrammes mit begleitender Bewegungstherapie.Of course they are also far more trivial scenarios conceivable, for example as aids for monitoring a medical diet program with accompanying movement therapy.

11
Fahrradpedalpedal
22
Zentrale Steuerungheadquarters control
33
Drahtlosschnittstelle (Antenne)Wireless interface (Antenna)
44
Kraftsensorforce sensor
55
Gegenstellsagainst Stells
1010
Fahradpedalbicycle pedal
1111
Hauptachsemain axis
1212
Dynamodynamo
1313
Kapazitätcapacity
1414
Kraftsensorforce sensor
1515
Beschleunigungssensoraccelerometer
1616
Neigungssensor/UmdrehungssensorTilt sensor / rotation sensor
1717
Zentrale Steuerungheadquarters control
1818
Drahtlosschnittstelle (Antenne)Wireless interface (Antenna)

Claims (22)

System zur Kraftmessung in mehrere verschiedene Richtungen (je nach baulicher Gegebenheit des Pedals in X, Y und Z Richtung) und Bewegungsanalyse (Kräfteparallelogram) eines Fahrradpedals, wobei eine Gruppe von Sensoren im Pedal selbst, ihre Informationen anhand einer zentralen Stelle mit Sender an eine Gegenstelle übermitteln, welche besagte Informationen sammelt und interpretiert.System for force measurement in several different Directions (depending on the structural condition of the pedal in X, Y and Z direction) and movement analysis (force parallelogram) of a bicycle pedal, with a group of sensors in the pedal itself, their information transmit via a central location with transmitter to a remote station, which collects and interprets said information. System nach Anspruch 1, wobei mechanische Kraftsensoren zum Einsatz kommen.The system of claim 1, wherein mechanical force sensors be used. System nach Anspruch 1, wobei optische Kraftsensoren verwendet werden.The system of claim 1, wherein optical force sensors be used. System nach Anspruch 1, welches piezo elektrische Kraftsensoren verwendet.System according to claim 1, which piezoelectric electrical Force sensors used. System nach Anspruch 1, dessen zentrale Komponente über eine Bluetooth-Drahtlosschnittstelle mit der Gegenstelle Verbindung hält.System according to claim 1, whose central component is via a Bluetooth wireless interface with the remote station keeps connection. System nach Anspruch 1, dessen zentrale Komponente über eine WiFi-Drahtlosschnittstelle mit der Gegenstelle Verbindung hält.System according to claim 1, whose central component is via a WiFi wireless interface with the remote station keeps connection. System nach Anspruch 1, dessen zentrale Komponente über eine ZigBee-Drahtlosschnittstelle mit der Gegenstelle Verbindung hält.System according to claim 1, whose central component is via a ZigBee wireless interface with the remote station keeps connection. System nach Anspruch 1, dessen zentrale Komponente mittells GSM Verbindung zur Gegenstelle hält.System according to claim 1, whose central component Mittell GSM connection to the remote station holds. System nach Anspruch 1, dessen zentrale Komponente über eine beliebige andere Datenfunkschnittstelle Verbindung mit der Gegenstelle hält.System according to claim 1, whose central component is via a any other data radio interface connection with the remote station holds. System nach Anspruch 1, welches aus einer Batterie oder Akkumulator mit Spannung versorgt wird.System according to claim 1, which consists of a battery or accumulator is supplied with voltage. System nach Anspruch 1, welches aus einer Kapazität mit Spannung versorgt wird.System according to claim 1, which consists of a capacitance with voltage is supplied. System nach Anspruch 1, welches seine Spannung aus einem ins Pedal integrierten und von der Bewegungsenergie des Nutzers angetriebenen, Dynamo bezieht.System according to claim 1, which outputs its voltage one integrated into the pedal and the kinetic energy of the user driven, dynamo refers. System nach Anspruch 1, dessen Gegenstelle als Fahrradcomputer ausgeführt ist.System according to claim 1, the remote station as a bicycle computer accomplished is. System nach Anspruch 1, dessen Gegenstelle als PDA ausgeführt ist.System according to claim 1, the remote station as a PDA accomplished is. System nach Anspruch 1, dessen Gegenstelle als PC ausgeführt ist.System according to claim 1, the remote station as a PC accomplished is. System nach Anspruch 1, dessen Gegenstelle selbst als Sensor (z.B.: Aktivitätssensor) ausgeführt ist.System according to claim 1, the remote site itself as sensor (eg: activity sensor) accomplished is. System nach Anspruch 1, dessen Gegenstelle als beliebiges Computersystem ausgeführt ist.System according to claim 1, the remote station as any Computer system running is. System nach Anspruch 1, wobei das Pedal zusätzlich mit einem Beschleunigungssensor ausgerüstet ist, um genauere Informationen über den Bewegungsablauf zu erhalten.The system of claim 1, wherein the pedal additionally comprises equipped with an acceleration sensor for more detailed information about the Movement to receive. System nach Anspruch 1 bzw. 18, wobei das Pedal zusätzlich mit einem Umdrehungssensor ausgerstattet ist, um ein genaueres Bewegungsbild zu erhalten.The system of claim 1 or 18, wherein the pedal additionally equipped with a revolution sensor, for a more accurate motion picture to obtain. System nach Anspruch 1 bzw. 18, wobei das Pedal zusätzlich mit einem Neigungssensor, der Pedalstellung in Relation zur Pedalachse aufzeichnet, ausgestattet ist, um ein genaueres Bewegungsbild zu erhalten.The system of claim 1 or 18, wherein the pedal additionally with a tilt sensor, the pedal position in relation to the pedal axis records, is equipped to provide a more accurate motion picture receive. System nach Anspruch 1 und 18 bis 20, wobei mindestens zwei Sensoren über ein Busnetzwerk an die zentrale Steuereiheit angeschlossen sind.The system of claims 1 and 18 to 20, wherein at least two sensors over a bus network are connected to the central Steuereiheit. System nach Anspruch 1 und 18 bis 20, wobei die zentrale Komponente im Pedal einen Teil der Messdaten vorverarbeitet oder sogar in komplett aufbereiteter Form an die Gegenstelle schickt.The system of claims 1 and 18 to 20, wherein the central component in the pedal pre-processed part of the measurement data or even in completely processed form to the opposite party sends.
DE202006019191U 2006-12-20 2006-12-20 System for measuring the force and movement of a bicycle pedal Expired - Lifetime DE202006019191U1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010014242A1 (en) * 2008-07-29 2010-02-04 George David O'neill System and device for measuring and analyzing forces applied by a cyclist on a pedal of a bicycle
WO2010109397A1 (en) * 2009-03-23 2010-09-30 Rmd Group Ag Apparatus and method for measuring a force acting on a bicycle pedal in the direction of the pedal shaft
WO2011106719A1 (en) * 2010-02-25 2011-09-01 Qualcomm Incorporated Methods and apparatus for applying tactile pressure sensors
GB2482696A (en) * 2010-08-11 2012-02-15 Martin Andrew Jackson Force-sensing bicycle pedal and electric cycle
AT513088A1 (en) * 2012-07-06 2014-01-15 Gerfried Dipl Ing Cebrat Integration of a pedal sensor in a pedal

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010014242A1 (en) * 2008-07-29 2010-02-04 George David O'neill System and device for measuring and analyzing forces applied by a cyclist on a pedal of a bicycle
US8011242B2 (en) 2008-07-29 2011-09-06 Garmin Switzerland Gmbh System and device for measuring and analyzing forces applied by a cyclist on a pedal of a bicycle
WO2010109397A1 (en) * 2009-03-23 2010-09-30 Rmd Group Ag Apparatus and method for measuring a force acting on a bicycle pedal in the direction of the pedal shaft
CH700681A1 (en) * 2009-03-23 2010-09-30 Rmd Group Ag Apparatus for transmitting force between a foot and a bicycle pedal and method for measuring a force acting on a bicycle pedal in the direction of the pedal shaft power.
WO2011106719A1 (en) * 2010-02-25 2011-09-01 Qualcomm Incorporated Methods and apparatus for applying tactile pressure sensors
US8638236B2 (en) 2010-02-25 2014-01-28 Qualcomm Incorporated Methods and apparatus for applying tactile pressure sensors
GB2482696A (en) * 2010-08-11 2012-02-15 Martin Andrew Jackson Force-sensing bicycle pedal and electric cycle
AT513088A1 (en) * 2012-07-06 2014-01-15 Gerfried Dipl Ing Cebrat Integration of a pedal sensor in a pedal

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