TW202236992A - Smart bicycle shoe achieves convenient use efficacy by mounting at least a force sensing unit and the motion sensing unit on the wearable pressure bearing unit - Google Patents

Abstract

A smart bicycle shoe comprises a pressure bearing unit, at least a force sensing unit, and a motion sensing unit. The pressure bearing unit can be provided for a user to wear and step. The force sensing unit can measure the force implied by feet. The motion sensing unit comprises a motion sensor, a computation module, and a wireless module. The computation module receives information, performs computation, and then sends a result to an interface unit through the wireless module. The invention mounts the at least a force sensing unit and the motion sensing unit on the wearable pressure bearing unit to achieve convenient use efficacy. In addition, the resolution is carried out by the computation module to further obtain diverse data directly and precisely.

Description

smart bike shoes

The invention relates to a measuring device applied to cycling, in particular to a smart bicycle shoe.

When riding a bicycle, the rider steps on the pedals with both feet and drives the crank to rotate, which in turn drives the tires to rotate and drives the bicycle itself to move forward with the rider. When pedaling, it will be resisted by the friction force between the tire and the ground, so it can produce sufficient movement effect. Moreover, in order to measure the exercise intensity of the rider during the riding process, various devices capable of measuring the pedaling power have appeared on the market. For example, a conventional pedaling power measuring device includes a plurality of strain gauges disposed on the outer surface of the crank, and a tachometer for measuring the rotational speed of the crank. The magnitude of the moment applied to the crank can be known through the strain gauges, and then calculated with the rotational speed measured by the tachometer, the pedaling power of the rider during the riding process can be known. Higher pedaling power usually means higher intensity for the rider. Therefore, it is beneficial for the rider or the coach to grasp the training situation, and can assist in formulating a sports plan. Especially in professional competitions, data-based training data can bring clear goals to players and have the opportunity to pre-build advantages outside the competition.

However, the disadvantage of the aforementioned existing pedaling power measuring device is that: since the sensing elements are all arranged on the crank, it is quite difficult to install and disassemble. If the same person owns multiple bicycles, the existing pedaling power measuring device must be installed on each bicycle. Or, when changing the bicycle, the crank of the original bicycle must be unloaded and reinstalled on another bicycle, which is quite troublesome to use. In addition, when using strain gauges for surface measurement, it is easily affected by factors such as the environment, mechanism, and materials, and frequent corrections are required. After calibration, it is still vulnerable to environmental factors and loses accuracy again.

Therefore, the object of the present invention is to provide a smart bicycle shoe that is easy to use and can provide diversified data.

Therefore, the smart bicycle shoe of the present invention is suitable for signal connection with an interface unit. The smart bicycle shoe includes a pressure-bearing unit, at least one force sensing unit, and a motion sensing unit.

The pressure-bearing unit can be worn by the user and stepped on by the user. The at least one force sensing unit is installed on the pressure-bearing unit and bears a foot force generated when the user steps on it to measure the foot force. The at least one force sensing unit generates force information according to the foot force. The motion sensing unit is installed on the pressure bearing unit and electrically connected with the at least one force sensing unit. The motion sensing unit includes a motion sensor for sensing triaxial acceleration and triaxial angular acceleration and generating motion information, an arithmetic module for performing calculations, and a wireless module for wireless transmission . The calculation module receives the force information and the motion information and performs calculation to generate output information. The wireless module receives the output information and sends the output information to the interface unit.

The effect of the present invention lies in: by installing the at least one force sensing unit and the motion sensing unit on the wearable pressure-bearing unit, the effect of convenient use is achieved. In addition, since the output information is calculated based on the force application information and the movement information, diversified data can be obtained directly and accurately.

Referring to FIG. 1 and FIG. 2 , an embodiment of the smart bicycle shoe of the present invention is suitable for signal connection with an interface unit 9 . The smart bicycle shoe includes a pressure-bearing unit 1 , four force sensing units 2 , and a motion sensing unit 3 .

The pressure-bearing unit 1 can be worn by the user and stepped on by the user. Those skilled in the art can select appropriate components as the pressure-bearing unit 1 according to requirements. For example, the pressure-bearing unit 1 can be an insole of a shoe, a midsole of a shoe or an outsole of a shoe. In addition, the number of the pressure-bearing unit 1 in this embodiment is one, but it is only an example, and it can also be two, three or more than four in other variation examples.

The force sensing units 2 are installed on the pressure-bearing unit 1 and are able to measure the foot force generated by the user when stepping on it. Each force sensing unit 2 generates force information S1 according to the foot force. In this embodiment, the force sensing units 2 are piezoelectric films that can generate electric energy when pressed. In this way, the force sensing units 2 can also supply power by themselves while measuring the force exerted by the foot, so that this embodiment can be used for a long time. However, this is just an example, and the force sensing units 2 can also be capacitive pressure-sensing films, which should not be limited thereto. In addition, the number of the force sensing units 2 in this embodiment is four, but it is only an example, and it can also be one, two, three or more than five in other variations.

It should be noted that, in this embodiment, the locations where the force sensing units 2 are distributed correspond to the forefoot of the user. The ingenuity of this kind of design lies in: when the user steps on the pedal of the bicycle, most of them apply force through the forefoot. Therefore, the actual benefit of arranging the force sensing units 2 at the heel is actually not great. Limiting the area where the force sensing units 2 are arranged to the forefoot not only does not affect the accuracy, but also can reduce the number of these force sensing units 2 and effectively reduce the manufacturing cost.

The motion sensing unit 3 is mounted on the pressure bearing unit 1 and electrically connected with the force sensing units 2 . The motion sensing unit 3 includes a motion sensor 31 for sensing three-axis acceleration and three-axis angular acceleration and generating a motion information S2, an operation module 32 for performing calculations, and a wireless transmission The wireless module 33. The calculation module 32 receives the force information S1 and the movement information S2 and performs calculation to generate an output information S3. The wireless module 33 receives the output information S3 and sends the output information S3 to the interface unit 9 .

Specifically, the motion sensor 31 has a three-axis accelerometer and a three-axis gyroscope, so it can sense three-axis acceleration and three-axis angular acceleration, so that the motion information S2 contains three-axis acceleration data and three-axis Angular acceleration data.

In this embodiment, the computing module 32 is a single-chip microcontroller (MCU), so it can directly and accurately calculate the diversified data through the applied force information S1 and the motion information S2. That is to say, the output information S3 includes tangential force data, radial force data, pedaling frequency data, pedaling power data, and so on. However, the computing module 32 can also be other devices with computing capabilities, and should not be limited thereto.

It should be noted that, referring to FIG. 3 , since the pedals move in a circle along a circular path R. Among the force F applied to the pedal, only the force Ft applied along the tangential direction can be effectively converted into a moment, while the force Fr applied along the radial direction does not help the bicycle to move forward. Therefore, it is necessary to convert the measured foot force into tangential force data and radial force data, and then convert the tangential force data into torque, and finally calculate the torque with the pedaling frequency data And obtain pedaling power data.

In this embodiment, the wireless module 33 is a Bluetooth transmission module, and the interface unit 9 is a smart phone. But this is just an example and should not be limited thereto. For example, the wireless module 33 can also be an infrared transmission module, a radio module, a near field communication module (Near Field Communication, NFC) . . . and so on. The interface unit 9 can also be a smart car watch, a smart watch or other smart devices.

In this way, this embodiment can be used with the Internet, an application program (APP) or a global positioning system (GPS), so that the user can also know information such as riding routes, riding distances, and weather conditions. Simultaneously understand real-time training data, such as: tangential force, radial force, pedaling frequency, pedaling power, etc., or statistics so far, such as calories burned, functional threshold power (FTP) …wait.

It should also be noted that the position of the motion sensing unit 3 in this embodiment corresponds to the inner longitudinal arch of the user's foot arch (as shown in FIG. 1 ). The ingenuity of this design lies in: Generally speaking, when stepping on a flat ground, there will be a gap between the bottom of the inner longitudinal bow and the ground. Therefore, compared with other positions, disposing the motion sensing unit 3 in the aforementioned gap will not hinder the user from walking, and the motion sensing unit 3 is less likely to be damaged due to the impact force when walking.

Also, in another variation, the position of the motion sensing unit 3 corresponds to the heel of the user (as shown in FIG. 4 ). The ingenuity of this design is that it is easier when the user wants to take off the motion sensing unit 3 or replace its components (such as battery replacement). In addition, many types of shoes are originally designed with cushioning parts at the heel position. This embodiment can also be embedded in the aforementioned cushioning parts to prevent damage due to impact force during walking.

It should be emphasized that, compared with the prior art, this embodiment can be worn by the user, so when riding different bicycles, the same device can be used without disassembly or installation, greatly improving convenience. In addition, as long as appropriate parameters are set for different bicycles (for example: setting the radius of the pedal circle), a variety of data can be directly and accurately calculated, allowing users to understand the exercise situation more carefully. In addition, the force sensing units 2 and the motion sensing unit 3 can be buried inside the pressure-bearing unit 1, so that the force sensing units 2 and the motion sensing unit 3 are less likely to be disturbed by environmental factors and can Avoid multiple calibrations.

To sum up, the smart bicycle shoe of the present invention achieves the effect of being easy to use by installing the force sensing units 2 and the motion sensor on the wearable pressure-bearing unit 1 . In addition, since the output information S3 is calculated based on the applied force information S1 and the motion information S2, multiple data can be obtained directly and accurately, thus achieving the purpose of the present invention.

But the above-mentioned ones are only embodiments of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

1: Pressure unit 2: Force sensing unit 3: Motion sensing unit 31:Motion sensor 32: Operation module 33:Wireless module 9: Interface unit S1: Shili Information S2: Sports information S3: output information R: Surround path F: The force F applied to the pedal Ft: the force applied along the tangential direction Fr: force applied along the radial direction

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a structural representation of an embodiment of the intelligent bicycle shoe of the present invention; Fig. 2 is a system architecture diagram of this embodiment; Fig. 3 is a schematic diagram for analyzing the force exerted when stepping on the pedals of a bicycle; and FIG. 4 is a structural schematic diagram of another variation of the embodiment.

1: Pressure unit

2: Force sensing unit

3: Motion sensing unit

Claims (10)

A smart bicycle shoe suitable for signal connection with an interface unit, the smart bicycle shoe includes: a pressure-bearing unit, which can be worn by the user and stepped on by the user; At least one force sensing unit is installed on the pressure-bearing unit and bears a foot force generated when the user steps on it to measure the foot force. The at least one force sensing unit is based on the foot force generating at least one force information; and A motion sensing unit, installed on the pressure-bearing unit and electrically connected to the at least one force sensing unit, the motion sensing unit includes a device for sensing triaxial acceleration and triaxial angular acceleration and generating a motion information A motion sensor, an operation module for performing calculations, and a wireless module for wireless transmission, the operation module receives the at least one force application information and the movement information and performs calculations to generate an output information, The wireless module receives the output information and sends the output information to the interface unit. The smart bicycle shoe according to claim 1, wherein the pressure-bearing unit is one of an insole of a shoe, a midsole of a shoe, or a outsole of a shoe. The smart bicycle shoe according to claim 1, wherein the at least one force sensing unit is a capacitive pressure-sensing film. The smart bicycle shoe according to claim 1, wherein the at least one force sensing unit is a piezoelectric film that can generate electric energy when pressed. The smart bicycle shoe according to claim 1, wherein the position of the motion sensing unit corresponds to the inner longitudinal arch of the user's foot arch. The smart bicycle shoe according to claim 1, wherein the position of the motion sensing unit corresponds to the user's heel. The smart bicycle shoe as described in claim 1, wherein the output information generated by the calculation module includes force data in a tangential direction. The smart bicycle shoe according to claim 1, wherein the output information generated by the calculation module includes radial force data. The smart bicycle shoe according to claim 1, wherein the output information generated by the computing module includes pedaling frequency data. The smart bicycle shoe as described in claim 1, wherein the output information generated by the computing module includes pedaling power data.

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