TW201718328A - Sensing system of bicycle treading device to sense the user's treading force, and record the moving trace generated by the movement, then proceed with calculation and analysis to be provided for the user's movement reference - Google Patents

Abstract

A sensing device of bicycle pedal is disclosed, which is mounted in a treading device of a bicycle. It comprises a sensing element to sense and record the conditional signal of applied force when the user treads on the treading device. A trace movement sensing unit senses and records the movement signal of the spatial position variation when the user treads on the treading device. A control circuit receives and processes the signal sensed by the sensing element and the trace movement sensing unit. A power supply device provides the driving power for the operation of the sensing element, the trace movement sensing unit, and the control circuit. Accordingly, it can sense the user's treading force, record the moving trace generated by the movement, and then proceed with calculation and analysis to be provided for the user's movement reference.

Description

Bicycle pedal sensing system

The present invention relates to a bicycle pedal sensing system, and more particularly to a sensing device that can sense a user's pedaling force and a motion trajectory on a bicycle pedal and provide the user with a motion reference.

With the abundance of life, most people in modern times have problems of overeating and over-nutrition, causing many civilized diseases such as obesity and harming people's health. Therefore, many people have gradually learned that by adjusting the physiological functions by appropriate exercise, people can meet the health needs. Along with this, there is a large amount of equipment associated with sports.

The best way to exercise, of course, is to get out of the open air. It is best to stay away from the dust and return to the natural environment. Not only can the body get active, but also breathe fresh air, and see the beautiful landscape, which can have a good impact on the human body and the mind. However, it is not easy to find a good sports venue with the busy life of modern people and the urbanization of the environment. Therefore, various fitness equipments have been born to meet people's needs for various sports.

In addition, in order to achieve the effect of exercise, recording the state of each movement is a good reference. For example, a common pedometer can record based on people's action status. The number of walking steps, and even the goal of daily activities. Along with the rapid development of science and technology, various recording units have reached the requirements of low price and good quality, and can be used for the daily exercise of ordinary people, and monitored at any time to maintain the health of the body.

However, various sports equipment has its special function, so it is better to sense the required motion signal according to the characteristics of the sports equipment and analyze it to provide a user motion reference.

In the case of a conventional bicycle exercise device, a conventional technique such as US Pat. No. 20120210784 A1, although a sensing element is provided on the pedal to provide a function of sensing a motion signal, the conventional technique cannot detect and analyze the user. The force applied to the bicycle pedal and the force applied to the surface of the bicycle pedal, so that the user can not obtain continuous information about the rotation of the whole week to improve their pedaling efficiency, in order to achieve better bicycle Sports effect.

Another conventional technique is shown in US Pat. No. 8,011,242 B2, as shown in FIG. 5 and FIG. 6, which are respectively provided with four sensing elements 1a, 1b on both sides of the pedal axis 51', and the sensing elements on both sides are provided. The angles of 1a and 1b are mutually deflected, and the continuous motion track S' cannot be measured for the pedaling force of a fixed position obtained by changing the position of the pedal axis 51', and the resolution of the sensing can only reach EX: 45°. However, the prior art must increase the number of sensing elements 1a, 1b to increase the resolution, while the sensing elements 1a, 1b are high-precision products, the price is not low, the more the number of sensing elements 1a, 1b are relatively Increase setup costs.

Moreover, when the bicycle is stepped on, a continuous motion trajectory is generated, and the trajectory action can further help the user to improve the pedaling manner for safe and effective bicycle movement.

Therefore, considering the needs of users, the inventor of this case is actively conceived, considering a kind of motion signal that can sense the user, and record the activity track generated during the exercise, and then Individual exercise data can be calculated, analyzed, or converted, and further suggestions for personal exercise can be provided to get the best exercise results.

The main object of the present invention is to provide a bicycle pedal sensing device, which is a device for simultaneously measuring motion signals and motion trajectories, and is suitable for users to perform bicycle sports, and has a relatively powerful function.

The bicycle pedal sensing device of the present invention, which can achieve the foregoing objectives, is applied to a bicycle exercising device, which is mainly provided with two or more sensing elements on the pedal, and the sensing element is used for measuring The strength of the force on the pedal and the force applied by the user, and the sensing element can be fixed to the axis or surface of the pedal by means of attachment or fitting.

And a track motion sensing unit is further disposed on the shaft or the pedal of the pedal device. When the user steps on the pedal, the track motion sensing unit senses the position of the pedal according to the change of the position of the pedal. The spatial position signal can be used to measure the spatial trajectory change of the pedal.

Thereby, when the user rides, the bicycle shoe can be buckled on the pedal, and the two are not placed in a state of falling off, and the pedaling force applied by the user can be completely transmitted to the pedal. The sensing element then begins recording the user's force condition and provides a record analysis.

At the same time, the trajectory motion sensing unit 21 is a two-axis or two-axis gravity/acceleration sensor. When the user moves, the X, Y two-dimensional position change in the space can be directly sensed, and then recorded for Follow-up use.

The pedal is provided with a control circuit and a power supply device, and the power supply device provides the sensing element, the track motion sensing unit, and the driving power of the control circuit.

The control circuit has an amplifying circuit, a filtering circuit, and a processing unit, and the amplifying circuit is configured to amplify the signal measured by the sensing component and the trajectory motion sensing unit, and filter the clutter through the filtering circuit to input the The processing unit performs processing.

In addition, the control circuit has a display unit that connects and outputs the data calculated by the processing unit.

In this way, the sensing component and the measurement signal measured by the trajectory motion sensing unit can be electrically connected to the processing unit via the amplifying circuit and the filtering circuit, respectively, and processed and calculated by the processing unit, and then wired and wirelessly The relevant measurement signal is transmitted to the display unit to provide an instant reference of the user, so that the user can control his own pedaling force and the force applied on the pedal according to the related information, and provide better combined with the movement track of the pedal. More accurate motion management information allows the user to achieve an effective output of athletic power.

The control circuit is connected to the display unit via a wired transmission method such as USB or IEEE1394, or the control circuit is connected to the display unit via a wireless transmission method such as RF, WIFI, Bluetooth or the like.

1, 1a, 1b‧‧‧ sensing components

2‧‧‧Track motion sensing unit

3‧‧‧Control circuit

31‧‧‧Amplification circuit

32‧‧‧Filter circuit

33‧‧‧Processing unit

34‧‧‧Display unit

35‧‧‧Wire

36‧‧‧Wireless Transmission Module

37‧‧‧ Receiver

4‧‧‧Power supply unit

5‧‧‧ pedal

51, 51’‧‧‧ Axis

6‧‧‧Bicycle shoes

S, S‧‧‧ continuous motion track

A, B‧‧‧ starting point

Θ‧‧‧ angle

1 is a reference structure of a use state of a bicycle pedal sensing device of the present invention; FIG. 2A is a schematic diagram of a sensing element track of a continuous movement of the bicycle pedal; 2B is a schematic diagram of a trajectory motion sensing unit track of the bicycle pedal continuous motion; FIG. 3 is a block diagram of a wired transmission circuit of the bicycle pedal sensing device; FIG. 4 is a block diagram of a wireless transmission circuit of the bicycle pedal sensing device; 5 is a structural reference diagram of a sensing element disposed on a pedal axis in the prior art; FIG. 6 is a schematic diagram of a sensing element trajectory of the continuous movement of the prior art; FIG. 7A is a schematic diagram showing an angle change obtained by the pedal at different pedaling angles according to the present invention; And FIG. 7B is a diagram showing the relationship between the pedaling stress obtained by different heights and stepping angles of the present invention.

Further embodiments of the invention are described below in conjunction with the drawings.

Please refer to FIG. 1 to provide a bicycle pedal sensing device for use on a bicycle exercising device (not shown). Further, the pedal 5 of the bicycle is matched with the shape of the bicycle shoe 6, so as to increase the stability of the bicycle shoe 6 and the pedal 5, and enhance the function of pedaling to achieve the best purpose of exercise. However, the bicycle shoe 6 is not the purpose of the present case and will not be described here.

The present invention mainly provides two or more sensing elements 1 on the shaft 51 of the footboard 5, and the sensing element 1 is used for measuring the strength of the force that the user steps on the pedal 5 and applies The condition of the force, and the sensing element 1 can be fixed to the surface of the shaft 51 of the pedal 5 or the pedal 5 by means of a covering or fitting.

Thereby, when the user rides, the bicycle shoe 6 can be buckled on the pedal 5 without being placed off, and the pedaling force applied by the user can be completely transmitted to the pedal. 5, then, the sensing element 1 begins to record the user's force condition, providing a record analysis.

Meanwhile, the present invention further provides a trajectory motion sensing unit 2 on the pedal axis 51 or the pedal 5, and when the user steps on the pedal 5, the trajectory motion sensing unit 2 will follow the position of the pedal 5. The change of the spatial angle position signal can be used to measure the spatial trajectory change of the pedal 5.

The trajectory motion sensing unit 2 is a three-axis gravity/acceleration sensor. When the user moves, the X, Y, and Z three-dimensional position changes in the space can be directly sensed to calculate the treading force of the user. Strength F.

The sensing element 1 and the trajectory motion sensing unit 2 are each disposed at a position of the pedal 5, but the number of the sensing elements 1 is not limited. In actual application, two sensing elements 1 and one trajectory motion sensing may be adopted. The unit 2 is arranged in such a manner that two of the sensing elements 1 are respectively disposed on both sides of the axis 51 of the pedal 5, and the path motion sensing unit 2 is disposed at the axis 51 of the pedal 5. .

Please refer to FIG. 2A and FIG. 2B for details, which show a change diagram of the continuous motion trajectory S obtained when the user stepped on the pedal 5 and the position of the pedal 5 is changed. The continuous motion trajectory S generally exhibits a circular motion, and can set a motion signal such as the number of recording laps, or the time of each lap, and calculate the angular velocity and the amount of time Δt, and provide the user as the amount of motion. For reference, you can further calculate calorie consumption, or adjust exercise time, speed, and so on.

From the force intensity F and the time change amount Δt obtained above, the work P=F/Δt can be calculated, and the magnitude of the work power of the user is known.

The force application condition obtained by the configuration of the present invention can further provide the user's force compensation function to obtain an optimal exercise condition. The so-called compensation principle, when the height of the user is different, because the starting point of the pedal 5 is different, the stress generated naturally also has Different, but need to compensate. As shown, basically, when the sensing element 1 is at the position of the starting point A, the user's stepping direction is vertical, and the sensed stress is at most 100%; and for the height is higher For the user, the start may be at the starting point B position, which will have an angle θ deviation from the starting point A. In other words, the stepping direction is inclined, and the stress is not 100% of the maximum force.

Referring to FIG. 7A and FIG. 7B, the stress analysis is performed on the user from the shortest to the highest height. In FIG. 7A, the user A with a relatively low height reaches between 0° and 45°. Maximum pedaling stress; user B with medium height will reach the maximum pedaling stress between 45° and 90°; and the highest user C will reach the maximum pedaling stress at around 90°.

FIG. 7B is a diagram showing the relationship between the pedaling stress obtained by the height and the stepping angle. First, the processor establishes a look-up data map. When the user with a medium height is stepping on, the angle of the sensing unit 2 is obtained according to the trajectory. Then, according to the B curve, the processor knows the percentage of his pedaling force, and the stress is compensated to 100% by this percentage.

For example, when user B stepped on 100% at about 60°, the pedaling force is 100 watt, and when he steps at 180°, the pedaling force is 50%, that is, 50 watt, and the compensation is 50 watt * 100% / 50%=100watt, this is the true pedaling force of user B, that is, the pedaling stress sensed when the 8 sensing units of the device are at 180° is 100 watt.

When the user C with the highest height reaches 100° at 120°, the pedaling force is 120 watt, and when he steps at 180°, the pedaling force is 50%, that is, 120 watt * 100%/50%. =120watt.

In addition, in calculating the true torque value of the user's stepping, the pedal axis 51 is not moved, but is rotated by the pedal 5, and when the pedal 5 is wound around the shaft 51, a torque maximum or intermediate value is taken out. , the minimum value, and the angle or θ value of the torque predicted by G-sensor, multi-turning to obtain more maximum values, as shown in the following table:

Therefore, if the right foot obtains 10 maximum values, intermediate values, and minimum values, the correct pedaling torque value and torque distribution angle or θ value of the right foot can be obtained, and when the average number of times is increased, the average pedaling value is increased. Precise, the same is true for the left foot.

Please refer to FIG. 3 and FIG. 4, FIG. 3 is a block diagram of a circuit for transmitting information in a wired manner according to a preferred embodiment of the present invention, and FIG. 4 is a circuit block diagram of wirelessly transmitting information according to a preferred embodiment of the present invention. .

The pedal axis 51 or the pedal 5 of the present invention is provided with the sensing element 1 and the path motion sensing unit 2, and is provided with a control circuit 3 and a power supply device 4, and the power supply device 4 provides the sensing element 1. The trajectory motion sensing unit 2 and the driving power of the control circuit 3.

The control circuit 3 has a circuit detector 31 for amplifying the signal measured by the sensing element 1 and the track motion sensing unit 2, and filtering out the clutter via the filter circuit 32. The processing unit 33 is input for processing.

Further, the control circuit 3 has a display unit 34 that connects and outputs the material calculated by the processing unit 33.

Therefore, as shown in FIG. 3, the sensing element 1, the trajectory motion sensing unit 2 The measured measurement signals can be electrically connected to the processing unit 33 via the amplification circuit 31 and the filter circuit 32, respectively, and the related measurement signals are transmitted to the display unit 34 in a wired manner via the processing and processing of the processing unit 33 through the wires 35. To provide an instant reference for the user, the user can control his own pedaling force and the force applied on the pedal 5 according to the relevant information, and provide better motion management information in combination with the continuous motion track S of the pedal 5. So that the user can achieve an effective output of athletic power.

The control circuit 3 is connected to the display unit 34 by a wired transmission protocol such as USB or IEEE1394.

As shown in FIG. 4, the control circuit 3 includes a wireless transmission module 36 and a receiver 37. The processing unit 33 can also be connected to the wireless transmission module 36 for transmission, so that the relevant measurement signal can be received via the external receiver 37 and transmitted to the display unit 34 to provide an instant reference of the user, so that The user can control whether the pedaling force and the exertion force on the pedal 5 are balanced according to the relevant information, and provide better motion management information in combination with the continuous motion track S of the pedal 5, so that the user can achieve effective The output of athletic power.

The wireless transmission module 36 and the receiver 37 of the control circuit 3 are connected to the display unit 34 via a wireless transmission protocol such as RF, WIFI, or Bluetooth.

With the foregoing device, the present invention can directly measure the strength of the force applied to the bicycle pedal 5 by the sole of the user when riding, and whether the force applied to the bicycle pedal 5 is balanced, except that the user can be prevented from generating an invalid application. Force or cause injury to the sport, and can effectively increase the user's pedaling efficiency.

At the same time, combined with the continuous motion trajectory S obtained by the trajectory motion sensing unit 2, the user's motion state can be further analyzed to provide the user with the most effective motion reference.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and combinations thereof may be made without departing from the spirit and scope of the invention. Simplifications should all be equivalent replacements and are included in the scope of the present invention.

1‧‧‧Sensor components

2‧‧‧Track motion sensing unit

3‧‧‧Control circuit

31‧‧‧Amplification circuit

32‧‧‧Filter circuit

33‧‧‧Processing unit

34‧‧‧Display unit

4‧‧‧Power supply unit

Claims (10)

A bicycle pedal sensing system is characterized in that: a pedal provides a user to step on to ride a bicycle, the pedal includes: a sensing component disposed at a position on both sides of the shaft of the pedal to sense and record the pedal a user applies a force application signal on the pedal; a track motion sensing unit is disposed on the axis of the pedal to sense and record a motion signal of a change in the spatial position of the pedal when the user steps on the control circuit; Receiving and processing the sensing component and the signal sensed by the trajectory motion sensing unit; the data output unit transmitting the data processed by the sensing component through the processor; the power supply device providing the sensing component, the trajectory The motion sensing unit and the driving power of the control circuit. A bicycle pedal sensing system is characterized in that: a pedal provides a user to step on to ride a bicycle, the pedal includes: a sensing component disposed on the pedal to sense and record that the user steps on the pedal a pedaling force signal; a track motion sensing unit disposed on the pedal to sense and record a motion signal of a change in a spatial position of the pedal when the user steps on; a control circuit that receives and processes the sensing component and the a signal sensed by the trajectory sensing unit; a power supply device that provides the sensing component, the trajectory motion sensing unit, and driving power for the control circuit to operate. The bicycle pedal device sensing system according to claim 1, wherein the sensing elements are two or more, and are evenly distributed on both sides of the shaft center. The bicycle pedal sensing system according to claim 2, wherein the sensing elements are two or more, and are evenly distributed on the pedal surface. The bicycle pedal sensing system according to claim 1 or 2, wherein the trajectory motion sensing unit is a two-axis or two-axis gravity/acceleration sensor, and can sense X in the space. , Y two-dimensional or above. The bicycle pedal device sensing system according to claim 1 or 2, wherein the control circuit has an amplifying circuit, a filtering circuit and a processing unit, and the amplifying circuit is configured to sense the sensing element and the track The signal measured by the measuring unit is operationally amplified, and the clutter is filtered through the filtering circuit and input to the processing unit for processing. The bicycle pedal device sensing system of claim 5, wherein the control circuit has a sensing element circuit detector. The bicycle pedal device sensing system according to claim 5, wherein the control circuit has a display output unit that connects and outputs the data calculated by the processing unit. The bicycle pedal device sensing system according to claim 6, wherein the control circuit is connected to the receiving display unit via a wired transmission method such as USB or IEEE1394. The bicycle pedal device sensing system according to claim 6, wherein the control circuit is connected to the wireless receiving display unit via a wireless transmission method such as RF, WIFI, Bluetooth or the like.