TW202126351A - Sports equipment capable of acquiring force output of exerciser employing mature and low-cost light sensor and angular velocity disc to calculate force output - Google Patents

Abstract

The present invention comprises an exercise device, a resistance device, an angular velocity measuring device, and a computing device. In which, the exercise device provides an exercise program and a bearing. An exerciser operates the exercise program to drive the bearing to rotate. The resistance device prevents the bearing from rotating and provides at least one resistance section to slow down the bearing. Different resistance sections have different resistance deceleration curves. The angular velocity measuring device is disposed on the exercise device to measure the rotational speed of the bearing to obtain an angular velocity variation. The computing device obtains the angular velocity variation and the resistance deceleration curve to calculate the force output of the exerciser. Thus, the present invention calculates and obtains the force output of the exerciser according to the angular velocity variation and the resistance deceleration curve, which has lower cost and can meet the usage requirements.

Description

Sports equipment capable of obtaining the strength of athletes

The present invention relates to sports equipment, in particular to a sports equipment that can obtain the strength of the athlete.

Sports equipment is for the operation and use of athletes to maintain physical and physical health, and can meet the needs of those who are inconvenient to engage in outdoor sports. In order to produce aerobic, body sculpting and health care effects, intensity and time are very important factors. For example, when the time and intensity are insufficient, the effect of exercise and fitness is limited. When the time and intensity exceed the load of the body, it is easy to cause sports injuries.

Therefore, in order to meet the fitness needs of athletes and avoid sports injuries. The intelligent sports equipment will obtain the time and intensity of the operation used by the exerciser, and analyze it to provide the exerciser as a reference during exercise, so as to correct the exercise intensity and time in a timely manner.

The intensity of the exerciser's operation of the exercise equipment is determined by the exerciser's output. For example, for a flywheel, the player’s output is the pedaling force of the pedals. To measure the player’s pedaling force, the conventional wisdom can only be obtained by using an expensive pedal or torque meter; Knowing the change of the angular velocity of the flywheel, it is necessary to install a gyroscope or accelerometer on the flywheel, so its construction cost is quite high.

Therefore, it makes smart sports equipment quite expensive and difficult to popularize.

The main purpose of the present invention is to disclose a sports equipment with low installation cost and power output.

To achieve the above objective, the present invention is a sports equipment that can obtain the strength of the athlete, which includes an exercise device, a resistance device, an angular velocity measurement device and an arithmetic device. The movement device provides a movement stroke and a bearing, and an athlete operates the movement stroke to drive the bearing to rotate. The resistance device hinders the rotation of the bearing and provides at least one resistance section to slow down the bearing, and different resistance sections have different resistance deceleration curves. The angular velocity measuring device is arranged on the moving device to measure the rotation of the bearing to obtain an angular velocity change. The arithmetic device is connected with the resistance device and the angular velocity measuring device, and the arithmetic device obtains the angular velocity change and the drag deceleration curve to calculate an output of the athlete.

Accordingly, since under the same pedaling frequency (speed), if the resistance section (according to the resistance deceleration curve) is different, the converted pedal force value is also different, so the present invention does not use expensive pedal force or torque meter, nor does it use a gyroscope. Or accelerometer. Using only mature technology and low-cost optical sensors and angular velocity discs, by obtaining the angular velocity change and referring to the drag reduction curve, the athlete's output can be calculated to meet the needs of use.

The detailed description and technical content of the present invention are described as follows in conjunction with the drawings:

Please refer to "Figure 1", which is a schematic diagram of the structure of the present invention. As shown in the figure, it includes a motion device 10, a resistance device 20, an angular velocity measurement device 30, and an arithmetic device 40. The movement device 10 provides a movement stroke and a bearing 11, and an athlete operates the movement stroke to drive the bearing 11 to rotate. The exercise device 10 can be selected from any of indoor bicycles, flywheels, elliptical machines, heavy training equipment, and circular exercise equipment, and the specific actions of the exercise stroke can be pedaling, rotating, reciprocating, and so on.

Please refer to FIG. 2 together. The resistance device 20 hinders the rotation of the bearing 11 and provides at least one resistance section to reduce the speed of the bearing 11. Different resistance sections have different resistance deceleration curves 21. The resistance deceleration curve 21 is generated by actually testing different decelerations of the resistance section after the configuration of the exercise device 10 and the resistance device 20 is confirmed. The horizontal axis is time and the vertical axis is angular velocity. The diagram is only A schematic diagram showing the trend of resistance deceleration curve 21, so no unit is indicated.

Please refer to "FIG. 1" and "FIG. 3" together, which are schematic diagrams of the photo-interruption sensor circuit of the present invention. The angular velocity measuring device 30 is installed on the motion device 10 to measure the rotation of the bearing 11 to obtain an angular velocity change (as shown in "FIG. 5"). In one embodiment, the angular velocity measuring device 30 may include a light sensor 31 and an angular velocity disk 32. "FIG. 3" is a schematic circuit diagram of an embodiment of the light sensor 31. The bearing 11 is connected to a wheel 12, the angular velocity disk 32 is fixed on the wheel 12, and the light sensor 31 is fixed on the motion device 10 and faces the angular velocity disk 32. In addition, the resistance device 20 can be used with a flywheel 22 and a transmission element 23. The two ends of the transmission element 23 are connected to the wheel 12 and the flywheel 22. Therefore, the athlete generates a force to step on a pedal 13 to drive the wheel. The rotation of 12 can be linked to the rotation of the flywheel 22, and the resistance device 20 can stop the rotation of the flywheel 22. Therefore, by changing the resistance of the resistance device 20, different resistance sections can be provided.

In addition, the photo sensor 31 can be any one selected from the group consisting of an interrupted optical couple, a reflective optical couple, a Hall sensor, and a displacement sensor, as long as it can determine the brightness change. And the exercise device 10 can be provided with a starting point detector 14 facing the angular velocity disc 32 at the position where the athlete generates the force. For example, the starting point detector 14 is provided on the crank of the pedal 13, so The starting point detector 14 can sense the position of the angular velocity plate 32 to calculate the angle of force when the athlete steps on the pedal 13.

"FIG. 1" also discloses the angular velocity disk 32, which is a single-turn angular velocity disk, which can be applied to a unidirectional rotating exercise device 10, such as an indoor bicycle, a flywheel, an elliptical machine, and so on. After the light sensor 31 is used in conjunction with the angular velocity disk 32, the angular velocity and the angular velocity change value can be measured, and then the angular acceleration can be calculated.

Please refer to "Figure 4" again, when the angular velocity disk 32 shown in Figure 1 can be changed to a dual-optical angular velocity disk 33, the dual-optical angular velocity disk 33 can be used for forward and reverse movements. Device 10, such as heavy training equipment or circular sports equipment, etc.

Please also refer to "Figure 5", which is a corresponding diagram of angular velocity and output of the present invention. The horizontal axis is time and the vertical axis is angular velocity and output. The diagram only shows the corresponding relationship between angular velocity and output, so there is no label unit. The arithmetic device 40 is connected to the resistance device 20 and the angular velocity measuring device 30, and the arithmetic device 40 obtains the angular velocity change (as shown in the upper diagram of "Fig. 5") and the resistance deceleration curve 21 (as in "Fig. 2) 。 Since the exercise device 10 will have a process of acceleration and deceleration, for example, the exercise device 10 will have different degrees of deceleration under different resistance sections. Under the same pedaling frequency (speed), if the resistance section (according to the resistance deceleration curve) is different , The converted pedaling force value is also different. Therefore, as long as you understand the change of the resistance deceleration curve 21 (such as "Figure 2"), and compare the measured angular velocity change, you can calculate the angular acceleration caused by the athlete's effort (the angular velocity change value (As shown in the upper figure of "Figure 5")); and based on the angular acceleration and the total weight of the exercise stroke, the athlete's output can be calculated (as in the lower figure of "Figure 5"), and by the starting point The setting of the detector 14 can know the angle of force when the athlete steps on the pedal 13. That is to say, the angular velocity change can be used to calculate the angular acceleration (deceleration), and then the angular acceleration can be corrected according to the resistance deceleration curve 21 to know the actual angular acceleration caused by the force when the athlete steps on the pedal 13 at different angles. (A), and then according to the physical formula F=MA, where M is the total weight of the exercise stroke, so the output of the athlete at different angles can be calculated when the athlete steps on the pedal 13.

In summary, the features of the present invention are:

1. No expensive pedals or torque meters, no gyroscopes or accelerometers are used, which effectively reduces setup costs.

2. The use of mature technology and low-cost optical sensors and angular velocity disks has high reliability and can reduce maintenance costs.

3. By obtaining the angular velocity change and referring to the resistance deceleration curve, the output of the athlete can be calculated to meet the needs of use.

4. With the use of dual optical couple angular velocity disc, it can distinguish between forward and reverse movement, and can be used for retraining equipment and ring sports equipment and other sports equipment.

10: Exercise equipment 11: Bearing 12: Roulette 13: Pedal 14: Starting point detector 20: Resistance device 21: drag curve 22: flywheel 23: Transmission components 30: Angular velocity measuring device 31: light sensor 32: Angular velocity plate 33: Double optical couple angular velocity disc 40: computing device

Figure 1 is a schematic diagram of the structure of the present invention. Figure 2 is a schematic diagram of the drag reduction curve of the present invention. Figure 3 is a schematic diagram of the photo-interruption sensor circuit of the present invention. Figure 4 is a structural diagram of the dual optical couple angular velocity disc of the present invention. Fig. 5 is a corresponding diagram of angular velocity and output of the present invention.

10: Exercise equipment

11: Bearing

12: Roulette

13: Pedal

14: Starting point detector

20: Resistance device

22: flywheel

23: Transmission components

30: Angular velocity measuring device

31: light sensor

32: Angular velocity plate

40: computing device

Claims (7)

A sports equipment that can obtain the strength of the athlete, which includes: A motion device, the motion device provides a motion stroke and a bearing, and a player operates the motion stroke to drive the bearing to rotate; A resistance device, the resistance device hinders the rotation of the bearing and provides at least one resistance section to slow down the bearing, and different resistance sections have different resistance deceleration curves; An angular velocity measuring device, the angular velocity measuring device is arranged on the motion device to measure the rotation of the bearing to obtain an angular velocity change; and An arithmetic device connected to the resistance device and the angular velocity measuring device, and the arithmetic device obtains the angular velocity change and the drag deceleration curve to calculate an output of the athlete. The sports equipment described in claim 1, wherein the angular velocity measuring device includes a light sensor and an angular velocity disk, the bearing is connected to a wheel disk, the angular velocity disk is fixed on the wheel disk, and the light sensor The device is fixed on the moving device and faces the angular velocity disc. The sports equipment described in item 2 of the scope of patent application, wherein the sports device is any one selected from an indoor bicycle, a flywheel, and an elliptical machine. The sports equipment described in item 2 of the scope of patent application, wherein the optical sensor is any one selected from the group consisting of an interrupted optical couple, a reflective optical couple, a Hall sensor, and a displacement sensor. The sports equipment described in item 2 of the scope of patent application, wherein the angular velocity disc is a dual optical couple angular velocity disc. The sports equipment described in item 5 of the scope of patent application, wherein the sports device is any one selected from the group consisting of heavy training equipment and loop sports equipment. The sports equipment described in item 2 of the scope of patent application, wherein the exercise device is provided with a starting point detector facing the angular velocity disc at the position where the exerciser generates the force.

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