TWM578799U - Left and right foot treading analysis system - Google Patents

Abstract

A left and right foot pedaling analysis system includes a pedaling sensing device and an electronic vehicle, wherein the pedaling sensing device includes one or more transmission units and one or more accelerometers for detecting Measure the digital signal change data when stepping on the pedal, and then analyze the signal of the accelerometer when riding the bicycle through the pedaling sensing device or/and the electronic vehicle to know the number of pedaling revolutions, the proportion of the left and right foot power, and the installation direction. It is used to understand the proportion of the pedaling distribution of the left and right feet during riding, so it can help to improve the pedaling skill and adjust the pedaling force mode to reduce the risk of injury caused by excessive unbalanced pedaling asymmetry.

Description

Left and right foot stepping analysis system

This creation is related to a left and right foot pedaling analysis system, in particular, it can be applied to a crank of any type of bicycle, and can analyze the number of pedaling revolutions, the right and left foot power usage ratio and the installation direction, and can be displayed on an electronic load. With the left and right foot stepping analysis system.

Cycling is one of the most popular sports today. Many people choose to ride bicycles as a leisure activity on holiday. Plus, cycling is less burdensome for lower limbs, making it ideal for all ethnic groups. In recent years, with the popularity of bicycles, various bicycle competitions are often held. At the same time, bicycles are also one of the international sports competitions, such as the world-famous Free Cars (Basic Tournament, Tour de France, Tour de France). As well as the Olympic free car project, the use of bicycles has changed from being a means of transportation in the past to a choice of leisure sports, and even becoming one of competitive sports.

Therefore, from the point of view of cycling to better performance and low risk of injury, if the rider can understand the performance of riding, or tell them the possible timing of injury, it will enhance the rider's engagement. The willingness of this sport, and allowing them to increase their cardio-respiratory and muscle strength through progressive riding training within their own capabilities, to achieve the goal of improving performance without injury, therefore, judge this The way or tool of performance or injury has always been a topic of concern for cyclists, players, coaches and researchers.

The driving force of the bicycle is converted into the driving force of the crank by the contraction of the muscles of the rider's legs and the pedaling of the pedals, and is transmitted to the rear wheel of the bicycle to generate the driving force for the forward movement, so the number of revolutions generated during riding It is closely related to the strategy of the forward performance of the bicycle and the adjustment of the different slopes or match speeds during riding.

When bicycle enthusiasts and players are riding a specific number of swings, they often hear that they complain that the number of turns reaches a certain or faster value, and there will be uneven force on the left and right feet. Especially, after riding, it is always too painful and fatigued on one side. In the long-term riding state, its severity will affect performance, and serious injuries will require rest and rest.

Therefore, riding the current number of revolutions and the situation of the left and right foot pedaling power distribution is a kind of information that bicycle enthusiasts, players and coaches want to pay attention to. It helps to improve by knowing the proportion of pedaling distribution of the left and right feet during riding. The technique of stepping on and adjusting the mode of pedaling to reduce the risk of injury caused by excessive unbalanced pedaling asymmetry.

However, there are currently no devices or products on the market that can simultaneously calculate the treading frequency and determine the proportion of left and right foot strength. It is often necessary to install more than two products to obtain these two information. In addition, most bicycles that judge the ratio of left and right foot strength The product is based on the use of strain gauges as the basis of the sensor. These products generate current output through the strain gauge shape variable and convert it into the corresponding pedaling force value. Therefore, the user needs to purchase an integrally formed strain gauge crank or After pedaling, and destroying or disassembling the crank or pedal structure of the original bicycle, and then installing it on the cranks or pedals on both sides, the power information of the left and right feet can be obtained, and the installation process is relatively cumbersome and the product is expensive.

Therefore, this design has designed a product that can simultaneously satisfy the need to calculate the pedaling frequency and determine the ratio of the left and right foot strengths, and to solve the problem that there is no device or product on the market that can simultaneously meet the calculation of the pedaling frequency and determine the ratio of the right and left foot strength. Therefore, this creation should be an optimal solution.

A left and right foot stepping analysis system includes: a stepping sensing device, which can be disposed on a bicycle left foot crank or a right foot crank, and the pedal sensing device includes a transmission unit for data The data is transmitted out; one or more accelerometers are electrically connected to the transmission unit for detecting digital signal change data when stepping on, and the digital signal change data is included in at least a duration of acceleration a stepping time analysis unit is electrically connected to the transmission unit and the accelerometer, and the stepping time ratio analyzing unit can analyze the digital signal change data to a positive half cycle peak to a negative half cycle after the pedaling The peak time and the time from the negative half-cycle peak to the positive half-cycle peak after the pedaling, and compare the two times to form a ratio of the left and right foot pedaling time; a pedaling force analysis unit, and the transmission unit and the The stepping time analysis unit is connected, and the ratio of the left and right foot stepping time is proportional to the ratio of the pedaling force of the left and right feet. , So the pedaling force can be time ratio analysis unit through the depression of the left foot to the left foot analyzed using pedaling power ratio; and an electronic carrier, the information system can receive data transmission of the transmitting unit.

More specifically, the stepping sensing device further includes a revolution number analyzing unit electrically connected to the transmitting unit and the accelerometer for analyzing the signal per second according to the detected digital signal change data. The number of cycles is generated, and the number of pedaling revolutions is analyzed according to the number of signal cycles generated per second.

More specifically, the stepping sensing device further includes a first mounting direction analyzing unit electrically connected to the transmitting unit and the accelerometer, according to an order in which the peak of the signal sensed by the accelerometer appears. It is determined that the pedaling sensing device is mounted on the outer or inner side of the crank of the bicycle.

More specifically, the stepping sensing device further includes a second mounting direction analyzing unit electrically connected to the transmitting unit and the accelerometer, according to the direction of the signal offset sensed by the accelerometer. It is determined that the pedaling sensing device is mounted on the crank up or down position of the bicycle.

More specifically, the electronic vehicle is a handheld smart device or a car watch for receiving data transmitted by the transmission unit and displayed on the electronic vehicle to provide a tread information. .

More specifically, the transmission unit of the stepping sensing device can transmit the data data detected by the pedaling sensing device in a wired transmission manner or a wireless transmission manner, so that the electronic carrier can receive the transmission unit. The data transmitted.

More specifically, the pedaling sensing device is disposed on the left crank of the bicycle, and the time from the peak of the positive half cycle to the peak of the negative half cycle represents the left foot time or the right foot time, and the negative half The time from the peak of the week to the peak of the positive half is the time of the right foot or the time of the left foot, and is compared with the time of the left foot and the time of the right foot to form the proportion of the time of the left and right foot.

More specifically, the stepping sensing device is disposed on the right crank of the bicycle, and the time from the peak of the positive half cycle to the peak of the negative half cycle represents the left foot time or the right foot time, and the negative half The time from the peak of the week to the peak of the positive half is the time of the right foot or the time of the left foot, and is compared with the time of the left foot and the time of the right foot to form the proportion of the time of the left and right foot.

The utility model relates to a left and right foot stepping analysis system, which comprises: a stepping sensing device, which can be arranged on a bicycle left foot crank or a right foot crank, and the pedaling sensing device comprises: a transmission unit, which is used for Data data is transmitted; one or more accelerometers are electrically connected to the transmission unit for detecting digital signal change data when stepping on, and the digital signal change data is included in at least a duration An acceleration waveform; an electronic vehicle capable of receiving digital signal change data transmitted by the transmission unit, wherein the electronic vehicle has a stepping time analysis unit for performing data change according to the received digital signal Analyze the time from the positive half-cycle peak to the negative half-cycle peak after the pedaling and the time from the negative half-cycle peak to the positive half-cycle peak after the pedaling, and compare the two times to form a ratio of the pedaling time And a stepping force analysis unit connected to the pedaling time analysis unit, and the left and right foot pedaling time ratio is related to one left Walked on the use of force ratio showed the opposite, so the pedaling power unit capable of analyzing the proportion of time pedaling through the analysis of the left foot of the left and right foot pedaling power ratio.

More specifically, the electronic vehicle further includes a swing number analyzing unit for analyzing the number of signal cycles generated per second according to the received digital signal change data, and performing the number of signal cycles generated per second. Analyze the number of pedaling revolutions.

More specifically, the vehicle further includes a first mounting direction analyzing unit for determining that the pedal sensing device is mounted outside the crank of the bicycle or according to the order in which the received signal peak appears. Inside position.

More specifically, the electronic vehicle further includes a second mounting direction analyzing unit for determining that the pedal sensing device is mounted on the crank of the bicycle according to the direction of the received signal offset. Or down.

More specifically, the electronic vehicle is a handheld smart device or a car watch for displaying the analyzed data on the electronic vehicle to provide a tread information.

More specifically, the transmission unit of the stepping sensing device can transmit the data data detected by the pedaling sensing device in a wired transmission manner or a wireless transmission manner, so that the electronic carrier can receive the transmission unit. The data transmitted.

More specifically, the pedaling sensing device is disposed on the left crank of the bicycle, and the time from the peak of the positive half cycle to the peak of the negative half cycle represents the left foot time or the right foot time, and the negative half The time from the peak of the week to the peak of the positive half is the time of the right foot or the time of the left foot, and is compared with the time of the left foot and the time of the right foot to form the proportion of the time of the left and right foot.

More specifically, the stepping sensing device is disposed on the right crank of the bicycle, and the time from the peak of the positive half cycle to the peak of the negative half cycle represents the left foot time or the right foot time, and the negative half The time from the peak of the week to the peak of the positive half is the time of the right foot or the time of the left foot, and is compared with the time of the left foot and the time of the right foot to form the proportion of the time of the left and right foot.

Other technical contents, features, and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the drawings.

Please refer to the drawings 1A~1B, which are schematic diagrams of the overall architecture of the first implementation of the left and right foot pedaling analysis system and the structure of the pedaling sensing device of the first embodiment. As can be seen from the figure, the left and right foot pedaling analysis system includes A stepping sensing device 1 and an electronic carrier 2 capable of receiving data data transmitted by the transmission unit 11.

The pedaling sensing device 1 is disposed on a left crank or a right crank of a bicycle, and the pedal sensing device 1 includes a transmission unit 11, one or more accelerometers 12, and a revolution number analyzing unit. 13. A stepping time analyzing unit 14, a stepping force analyzing unit 15, a first mounting direction analyzing unit 16, and a second mounting direction analyzing unit 17;

The transmission unit 11 is configured to transmit data data, and the digital signal change data is used to detect at least a duration of an acceleration waveform; and the transmission unit 11 The data detected by the treading sensing device 1 can be transmitted by a wired transmission method or a wireless transmission method, so that the electronic carrier 2 can receive the data data transmitted by the transmission unit;

Wherein the accelerometer 12 is capable of measuring a sensing instrument or device of acceleration or/and gravitational acceleration;

The revolution number analyzing unit 13 is configured to analyze the number of signal cycles generated per second according to the detected digital signal change data, and analyze the number of pedaling revolutions according to the number of signal cycles generated per second;

The stepping time analyzing unit 14 can analyze the digital signal change data from a positive half-cycle peak to a negative half-cycle peak after the pedaling and a negative half-cycle peak to a positive half-cycle peak after the pedaling, and Comparing the two times to form a ratio of the pedaling time of the left and right feet;

Since the ratio of the pedaling time of the left and right feet is opposite to the ratio of the pedaling force of the left and right feet, the pedaling force analysis unit 15 can analyze the proportion of the pedaling force of the left and right feet by the ratio of the pedaling time of the left and right feet;

The first mounting direction analyzing unit 16 is configured to determine, according to the sequence of the signal peaks sensed by the accelerometer 12, that the pedaling sensing device 1 is mounted on the outer or inner side of the crank of the bicycle;

The second mounting direction analyzing unit 17 is configured to determine, according to the direction of the signal offset sensed by the accelerometer 12, the pedaling sensing device 1 is mounted on the crank-up or down position of the bicycle.

The electronic vehicle 2 is a handheld smart device or a car watch. For example, the car table can directly receive the data transmitted by the transmission unit 11 and display it through the display unit after receiving; If the electronic vehicle 2 is a handheld smart device, the electronic vehicle 2 can be further equipped with a proprietary application (APP) so that the received data can be displayed on the electronic carrier 11 application. To provide a tread information.

In addition to the above embodiments, the left and right foot pedaling analysis system can include a stepping sensing device 3 and an electronic vehicle capable of receiving data data transmitted by the transmission unit, as shown in FIGS. 2A-2B. 4, wherein the pedaling sensing device 3 comprises at least one transmission unit 31 and one or more accelerometers 32;

The electronic carrier 4 includes a swing number analyzing unit 41, a stepping time analyzing unit 42, a stepping force analyzing unit 43, a first mounting direction analyzing unit 44, and a second mounting direction analyzing unit 45, so In the second implementation, the digital signal change data detected by the accelerometer 32 is analyzed and transmitted to the electronic carrier 4, so that the electronic carrier 4 analyzes the number of pedaling revolutions, the ratio of the left and right foot pedaling time, and the left and right foot pedaling forces. The use ratio and the direction in which the sensing device is mounted (the electronic carrier 4 further has a receiving unit and is analyzed by an internal mounting or built-in analysis unit after receiving).

The detected gravitational accelerometer signal is shown in Figure 3. This case is based on a gravitational accelerometer capable of measuring gravitational acceleration. Therefore, the number of cycles in which the gravitational accelerometer signal appears every second is judged. One second occurs at 60 RPM, so if it is 1.5 cycles per second, it can be judged that the number of pedaling revolutions is 90 RPM.

When the pedaling sensing device 1 is placed on the left crank of the bicycle, if the left foot is stepped on, as shown in FIG. 4, in a complete pedaling cycle, the top dead center 51 to the bottom dead center 52 (The signal from the positive peak to the negative peak) and the ratio of the bottom dead center 52 to the top dead center 51 (the right foot force) time is judged. If the left foot is analyzed: the time percentage of the right foot is 44:56, due to the left and right The foot pedaling time is opposite to the pedaling force, so the left foot: the right foot uses 56:44, and the shorter the pedaling time of the left or right foot is, the higher the relative strength of the foot is. Use this principle to distinguish the use ratio of the left and right foot forces;

The relationship between the above time and the force ratio, according to the relationship between the tangential force and the rotation of the circular motion, the greater the force, the faster the tangential acceleration, and the faster the angular velocity generated, so the time spent at the same distance is shorter; Since the paths of the left and right feet are the same, the stepping force is larger, and the time for completing the pedaling is relatively shorter. Therefore, the pedaling time of the left and right feet is opposite to the pedaling force. According to this principle, the ratio of the left and right foot forces is used.

On the other hand, if the pedaling sensing device 1 is disposed on the right crank of the bicycle, the time from the peak of the positive half cycle to the peak of the negative half cycle represents the time of the right foot, and the time from the peak of the negative half cycle to the peak of the positive half cycle is It represents the left foot time, and then compares the left foot time and the right foot time to form the ratio of the left and right foot stepping time, and finally converts the left and right foot stepping power ratio by the ratio of the left and right foot stepping time ratio.

When judging the direction of product installation, the user can first install the product on the crank of the left foot, and then judge the installation in the outer or inner position and the offset direction to judge the product upward or downward by the order in which the peak of the signal appears. The different situations are analyzed as follows (where the dotted signal line is the normal acceleration signal and the solid line signal is the tangential acceleration signal):  (1) As shown in Figure 5A, if it is installed on the outside, the dotted signal appears in front of the solid line;  (2) As shown in Figure 5B, if installed on the inside, the solid line signal appears in front of the dotted line;  (3) As shown in Figure 5C, if the installation is facing up, the dotted signal will shift toward the upper side;  (4) As shown in Figure 5D, if the mounting is facing down, the dotted signal will shift toward the lower side.  

The advantages of the left and right foot pedaling analysis system provided by this creation are compared with other conventional techniques:  (1) This creation can place an accelerometer-based product on the left foot crank. By judging the signal of the accelerometer when riding the bicycle, the number of pedaling revolutions, the right and left foot power usage ratio can be known, and the automatic use can be judged. In which direction do you install this product and judge the above functions?  (2) This creation can be fixed on the crank by means of straps, so it is not necessary to disassemble or destroy the existing crank and pedal structure, and it can quickly install and accurately calculate the proportion of the left and right foot pedaling force, suitable for the use of various ethnic groups. Use.  

The present invention has been disclosed above through the above embodiments, but it is not intended to limit the present invention. Anyone who has ordinary knowledge in the technical field will understand the spirit and spirit of the present invention after understanding the foregoing technical features and embodiments of the present invention. Within the scope, you can't make some changes and refinements.

1‧‧‧Stepping sensing device

11‧‧‧Transportation unit

12‧‧‧Accelerometer

13‧‧‧ Rotational Number Analysis Unit

14‧‧‧Stepping time analysis unit

15‧‧‧Stepping force analysis unit

16‧‧‧First installation direction analysis unit

17‧‧‧Second installation direction analysis unit

2‧‧‧Electronic vehicle

3‧‧‧Stepping sensing device

31‧‧‧Transmission unit

32‧‧‧Accelerometer

4‧‧‧Electronic vehicle

41‧‧‧ Rotational Number Analysis Unit

42‧‧‧Stepping time analysis unit

43‧‧‧Stepping force analysis unit

44‧‧‧First installation direction analysis unit

45‧‧‧Second installation direction analysis unit

51‧‧‧Top dead center

52‧‧‧Bottom dead point

[Fig. 1A] is a schematic diagram of the overall architecture of the first implementation of the left and right foot pedaling analysis system.  [Fig. 1B] is a schematic structural view of the pedaling sensing device of the first implementation of the left and right foot pedaling analysis system.  [Fig. 2A] is a schematic diagram of the overall architecture of the second implementation of the left and right foot pedaling analysis system.  [Fig. 2B] is a schematic diagram of the architecture of the electronic vehicle of the second implementation of the left and right foot pedaling analysis system.  [Fig. 3] is a schematic diagram of the accelerometer signal of the left and right foot pedaling analysis system.  [Fig. 4] is a schematic diagram of waveform analysis of the left and right foot pedaling analysis system.  [Fig. 5A] is a schematic diagram of the installation direction waveform of the left and right foot pedaling analysis system.  [Fig. 5B] is a schematic diagram of the installation direction waveform of the left and right foot pedaling analysis system.  [Fig. 5C] is a schematic diagram of the installation direction waveform of the left and right foot stepping analysis system.  [Fig. 5D] is a schematic diagram of the installation direction waveform of the left and right foot pedaling analysis system.  

Claims (10)

A left and right foot pedaling analysis system, comprising:  A stepping sensing device can be disposed on a left crank or a right crank of a bicycle, and the pedal sensing device comprises:  a transmission unit for transmitting data data;  One or more accelerometers are electrically connected to the transmission unit for detecting digital signal change data when stepping on, and the digital signal change data is included in at least a duration of acceleration waveform;  a stepping time analysis unit is electrically connected to the transmission unit and the accelerometer, and the stepping time ratio analyzing unit can analyze the digital signal change data to a positive half cycle peak to a negative half cycle peak after the pedaling Time and the time from the negative half-cycle peak to the positive half-cycle peak after treading, and comparing the two times to form a ratio of the left and right foot pedaling time;  a stepping force analysis unit is connected to the transmission unit and the pedaling time analysis unit, and the ratio of the left and right foot pedaling time is opposite to the ratio of the pedaling force of the left and right feet, so the pedaling force analysis unit can transmit the left and right The ratio of the foot pedaling time is used to analyze the proportion of the pedaling force used by the left and right feet;  An electronic vehicle is capable of receiving data data transmitted by the transmission unit.   The left and right foot stepping analysis system of claim 1, wherein the stepping sensing device further comprises a revolution number analyzing unit electrically connected to the transmitting unit and the accelerometer for changing according to the detected digital signal. Data, analyze the number of signal cycles generated per second, and analyze the number of pedaling revolutions according to the number of signal cycles generated per second. The left and right foot stepping analysis system of claim 1, wherein the stepping sensing device further comprises a first mounting direction analyzing unit electrically connected to the transmitting unit and the accelerometer for sensing according to the accelerometer The order in which the peak of the signal appears is used to determine whether the pedaling sensing device is mounted on the outer or inner side of the crank of the bicycle. The left and right foot stepping analysis system of claim 1, wherein the stepping sensing device further comprises a second mounting direction analyzing unit electrically connected to the transmitting unit and the accelerometer for sensing according to the accelerometer The direction of the signal offset determines that the pedaling sensing device is mounted on the crank-up or down position of the bicycle. The left and right foot pedaling analysis system of claim 1, wherein the electronic vehicle is a handheld smart device or a car watch for receiving data transmitted by the transmission unit and displayed on the electronic carrier. With it, to provide a tread information. The left and right foot stepping analysis system of claim 1, wherein the transmission unit of the stepping sensing device can transmit the data detected by the stepping sensing device by wire transmission or wireless transmission, so that the data is The electronic carrier is capable of receiving data transmitted by the transmission unit. The left and right foot pedaling analysis system according to claim 1, wherein the pedaling sensing device is disposed on a left crank of the bicycle, and the peak of the positive half cycle to the peak of the negative half cycle represents the left foot time or The right foot time, and the time from the negative half cycle peak to the positive half cycle peak time represents the right foot time or the left foot time, and is further compared with the left foot time and the right foot time to form the left and right foot stepping time. proportion. The left and right foot stepping analysis system according to claim 1, wherein the stepping sensing device is disposed on a right crank of the bicycle, and the peak of the positive half cycle to the peak of the negative half cycle represents the left foot time or The right foot time, and the time from the negative half cycle peak to the positive half cycle peak time represents the right foot time or the left foot time, and is further compared with the left foot time and the right foot time to form the left and right foot stepping time. proportion. A left and right foot pedaling analysis system, comprising:  A stepping sensing device can be disposed on a left crank or a right crank of a bicycle, and the pedal sensing device comprises:  a transmission unit for transmitting data data;  One or more accelerometers are electrically connected to the transmission unit for detecting digital signal change data when stepping on, and the digital signal change data is included in at least a duration of acceleration waveform;  An electronic carrier capable of receiving digital signal change data transmitted by the transmission unit, wherein the electronic carrier has:  A stepping time analysis unit is configured to analyze the time from the positive half-cycle peak to the negative half-cycle peak after the pedaling and the negative half-cycle peak to the positive half-cycle peak after the pedaling according to the received digital signal change data. Time, and compare the two times to form a ratio of time to step on the left and right feet;  a stepping force analysis unit is connected to the stepping time analysis unit, and the ratio of the left and right foot stepping time is opposite to the ratio of the pedaling force of the left and right feet, so the stepping force analysis unit can pass the ratio of the pedaling time of the left and right feet Analyze the proportion of the left and right foot pedaling power.   The left and right foot pedaling analysis system of claim 9, wherein the electronic vehicle further comprises a revolution number analyzing unit, configured to analyze the number of signal cycles generated per second according to the received digital signal change data, and according to The number of signal cycles generated per second is analyzed to count the number of pedaling revolutions.