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A method for measuring the power output of a cyclist in real time

A technology for real-time measurement of output power, applied in bicycle accessories, transportation and packaging, etc., can solve problems that are not the simplest and most effective, and achieve simplified design, reduced number of components and circuit board size, and reduced power consumption of the circuit, saving the overall cost effect

Active Publication Date: 2020-12-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0005] It can be seen that the torque and rotational speed in the above measurement method are measured separately by different sensors. Although the power measurement of the cyclist can be completed, it is not the simplest and most effective method.

Method used

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  • A method for measuring the power output of a cyclist in real time
  • A method for measuring the power output of a cyclist in real time
  • A method for measuring the power output of a cyclist in real time

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] The present invention provides a method for measuring the output power of a cyclist in real time, such as Image 6 As shown, considering the torque measurement and the rotational speed measurement in a unified manner, only the sensor that measures the torque is used to not only measure the torque exerted by the rider on the bicycle crank, but also calculate the rotational speed of the bicycle crank from the variation law of the torque, so as to achieve The purpose of measuring the power output of the driver in real time.

[0024] 1. Torque measurement

[0025] Since the torque formed by the pedaling force of the bicycle rider is directly applied to the bicycle crank, the applied torque can be obtained by measuring the strain generated by the bicycle crank.

[0026] First, the force analysis of the bicycle crank is carried out, such as figure 1...

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Abstract

The invention discloses a method for measuring the output power of a bicycle rider in real time. Torque measurement and rotating speed measurement are considered in a unified mode, only a sensor for measuring torque is used, the torque applied by a rider and borne by a bicycle crank is measured, the rotating speed of the bicycle crank can be calculated accordingly, and therefore the purpose of measuring the output power of the bicycle rider in real time is achieved. According to the power measurement method provided by the invention, the design of the bicycle power meter is simplified. Due tothe adoption of the single sensor design, the number of components, the size of a circuit board and the power consumption of the circuit are remarkably reduced, and the total cost is saved.

Description

technical field [0001] The invention belongs to the technical field of sensor signal measurement, and in particular relates to a method for measuring the output power of a cyclist in real time. Background technique [0002] A bicycle power meter is an important device for detecting the riding performance of cyclists, and it can also be used for ordinary cyclists to collect their own exercise data. Cyclists can revise and improve competition strategies based on the measurement data of the power meter during competitions to prevent premature overdraft of physical strength; in daily training, athletes can implement training plans more scientifically. [0003] The bicycle power meter was only invented in 1986. The original power meter was completely mechanical, complex and heavy. The power meter measures the torque received by the bicycle crank through a spring structure. With the increase of the pedaling torque, the spring compression increases, so that the received torque can...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62J45/411B62J45/421
CPCB62J99/00
Inventor 蔡涛王宇恒陈杰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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