CN212575597U - Power detection system - Google Patents
Power detection system Download PDFInfo
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- CN212575597U CN212575597U CN202020454185.4U CN202020454185U CN212575597U CN 212575597 U CN212575597 U CN 212575597U CN 202020454185 U CN202020454185 U CN 202020454185U CN 212575597 U CN212575597 U CN 212575597U
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Abstract
A power detection system comprises a power sensor, a control unit, a storage unit and a processor, wherein the power sensor comprises a sensing unit and a signal processing unit, and the sensing unit is selectively arranged on a right side operating part or a left side operating part of a bicycle; the signal processing unit outputs a corresponding electrical signal according to the deformation of the sensing unit; the control unit is used for being controlled by a user and outputting a weighting instruction; the processor receives the weighting instruction, stores the weighting instruction in the storage unit, obtains a weighting parameter corresponding to the weighting instruction according to a reference table stored in the storage unit, receives the electric signal output by the signal processing unit, calculates a first power value, multiplies the first power value by the weighting parameter to obtain a second power value, and adds the first power value and the second power value to obtain a total power value.
Description
Technical Field
The utility model relates to a unilateral power meter of a bicycle; more particularly, to a power detection system for estimating the total power applied to a bicycle using the single-sided power measured by a single-sided power meter.
Background
In order to monitor the riding performance, a power meter is generally installed on the bicycle for quantifying the riding performance as a training basis. The conventional power meters are generally disposed on the left and right sides of the bicycle, such as pedals or cranks, to measure the force applied by the rider to the two sides of the bicycle, respectively, thereby calculating the total power output by the rider. However, the two mounted power meters are installed on two sides of the bicycle respectively, and although the two mounted power meters can effectively provide the total power output by the rider, the two mounted power meters are expensive and difficult to install, which easily increases the training cost of the user and causes inconvenience in use.
In order to reduce the training cost of the user, a unilateral dynamometer has been developed in the market, which is only installed on the pedal or crank on one side of the bicycle to measure the force applied by one leg of the rider on one side of the bicycle, calculate the unilateral power outputted by one leg of the rider, and then directly multiply the unilateral power by two to obtain an estimated value of total power. From the above, the design of the conventional single-side power meter is still not perfect and there is still a need for improvement.
SUMMERY OF THE UTILITY MODEL
Accordingly, it is an object of the present invention to provide a power detection system that provides a higher level of accuracy for estimating the total power exerted on a bicycle by a cyclist.
In order to achieve the above object, the present invention provides a power detection system for a bicycle, the bicycle comprises a right operation portion and a left operation portion, the right operation portion and the left operation portion can be operated by a user to make the bicycle act, the power detection system comprises: the power sensor comprises a sensing unit and a signal processing unit, wherein the sensing unit is selectively arranged on the right side operation part or the left side operation part; the signal processing unit is in signal connection with the sensing unit and outputs a corresponding electric signal according to the deformation of the sensing unit; the control unit is used for being controlled by a user and outputting a weighting instruction; the storage unit is used for storing a reference table and the weighting instruction input by the control unit; the processor is in signal connection with the signal processing unit, the storage unit and the control unit, the processor receives the weighting instruction, stores the weighting instruction in the storage unit, obtains a weighting parameter corresponding to the weighting instruction according to the reference table, receives the electrical signal of the signal processing unit, calculates a first power value according to the electrical signal, multiplies the first power value by the weighting parameter to obtain a second power value, and adds the first power value and the second power value to obtain a total power value.
Wherein the weighting parameter is the ratio of the percentage of the force applied by one side of the user body to the total force applied by the other side of the user body to the total force applied by the two sides.
Wherein the right operation portion comprises a right pedal, the left operation portion comprises a left pedal, and the sensing unit is disposed on the right pedal or the left pedal.
Wherein the right operation part comprises a right crank, the left operation part comprises a left crank, and the sensing unit is disposed on the right crank or the left crank.
Wherein the right side operating portion contains a right side hand (hold), the left side operating portion contains a left side hand (hold), the right side hand (hold) has a right side section of gripping and a right side linkage segment, the left side hand (hold) has a left side section of gripping and a left side linkage segment, just the right side section of gripping the right side linkage segment the left side section of gripping connects according to the preface, sensing unit set up in the right side linkage segment or on the left side linkage segment.
The power detection system comprises a display unit which is in signal connection with the processor, the processor converts the total power value into an output signal and outputs the output signal to the display unit, and the display unit receives the output signal of the processor and displays the total power value.
The utility model has the effects of, the user can be based on experience or instrument measuring result decides the weighting parameter, based on the first power value that actual measurement user health one side output power obtained, obtains the second power value of estimating health opposite side output after multiplying first power value and weighting parameter, then adds first power value and second power value, borrows this, obtains the more accurate total power value of one-sided power meter now.
Drawings
Fig. 1 is a schematic diagram of a power detection system according to a preferred embodiment of the present invention.
FIG. 2 is a schematic view of the sensing unit disposed on one side of the bicycle.
FIG. 3 is a schematic view of the sensing unit disposed on one side of the bicycle.
FIG. 4 is a schematic view of the sensing unit disposed on one side of the bicycle.
Fig. 5 is a flowchart of the total power estimation method of the power detection system according to the preferred embodiment of the present invention.
Description of the reference numerals
[ the utility model ]
100: power detection system
10: power sensor
101: sensing unit
102: signal processing unit
20: control unit
30: processor with a memory having a plurality of memory cells
40: display unit
50: pedal
60: crank arm
70: right handle
72: left handle
701: right side holding section
702: right connecting segment
721: left side holding section
722: left side connecting section
80: storage unit
S01, S02, S03, S04, S05, S06, S07: step (ii) of
Detailed Description
In order to explain the present invention more clearly, the following detailed description will be given with reference to the accompanying drawings. Referring to fig. 1, a power detection system 100 according to a preferred embodiment of the present invention is shown. The power detection system 100 of the present invention is suitable for a bicycle, which includes a right operation portion and a left operation portion, wherein the right operation portion and the left operation portion can be operated to operate the bicycle. The power detection system 100 includes a power sensor 10, a control unit 20, a processor 30, a display unit 40 and a storage unit 80.
The power sensor 10 includes a sensing unit 101 and a signal processing unit 102, in this embodiment, the sensing unit 101 is illustrated as a strain gauge, the sensing unit 101 is disposed on the right side operating portion or the left side operating portion, and when a user applies a force to the right side operating portion or the left side operating portion, the sensing unit 101 deforms along with the application of the force to the right side operating portion or the left side operating portion.
The signal processing unit 102 includes a bridge circuit, an amplifier circuit, an analog-to-digital converter circuit, and the like, wherein the signal processing unit 102 is connected to the sensing unit 101 through a signal, and when the sensing unit 101 deforms along with the force applied by the user to the right operation portion or the left operation portion, the signal processing unit 102 can output a corresponding electrical signal according to the deformation of the sensing unit 101. The control unit 20 is controlled by a user and outputs a weighting command, and is in signal connection with the processor 30; the storage unit 80 is used to store a reference table and the weighting command inputted by the control unit 20; the processor 30 is respectively connected to the storage unit 80, the signal processing unit 102 and a display unit 40. The processor 30 and the signal processing unit 102 may be connected by wire or wirelessly, and the processor 30, the control unit 20 and the display unit 40 may be integrated into a computer, a smart phone or a bicycle computer.
As shown in fig. 2 to 3, the sensing unit 101 can be disposed on the pedal 50 or the crank 60 on one side of the bicycle, so that when the rider steps on the pedal 50, the sensing unit 101 disposed on the pedal 50 or the crank 60 deforms along with the force exerted by the rider on the pedal 50 or the crank 60, in practice, the right operating portion of the bicycle includes a right pedal, the left operating portion includes a left pedal, and the sensing unit can be disposed on the right pedal or the left pedal, and is not limited to being disposed on a specific side of the bicycle; similarly, in practice, the right operation portion of the bicycle includes a right crank, the left operation portion includes a left crank, and the sensing unit can be disposed on the right crank or the left crank, but is not limited to be disposed on a specific side of the bicycle.
In addition, the sensing unit 101 can also be disposed on the handle of the bicycle, please refer to fig. 4, wherein the right operating portion of the bicycle includes a right handle 70, the left operating portion includes a left handle 72, the right handle 70 has a right holding section 701 and a right connecting section 702, the left handle 72 has a left holding section 721 and a left connecting section 722, and the right holding section 701, the right connecting section 702, the left connecting section 722, and the left holding section 721 are sequentially connected, wherein the sensing unit 101 can be disposed on the right connecting section 702 or the left connecting section 721, and is not limited to be disposed on a specific side of the bicycle. For example, when the driver applies a force to the right holding section 701 when drawing the vehicle, the sensing unit disposed on the right connecting section 702 is deformed by the force applied to the right holding section 701 by the driver.
Referring to fig. 5, the total power estimation method for the power detection system of the preferred embodiment of the present invention includes the following steps:
in step S01, a measurement device is used to detect the subject and obtain a measurement result, wherein the measurement result includes the percentage of force applied by one side of the user 'S body to both sides and the percentage of force applied by the other side of the user' S body to both sides. For example, the measuring device may be a bicycle equipped with a bilateral dynamometer, and the person to be measured can obtain the output powers of the left leg and the right leg respectively by using the measuring device, and then obtain the measurement results of the percentage of the force applied by the left leg to the total force applied by the two legs and the percentage of the force applied by the right leg to the total force applied by the two legs after calculation.
In step S02, the control unit 20 is controlled by the user and outputs a weighting command to the processor 30, the processor 30 stores the weighting command in the storage unit 80, and compares the weighting command with a parameter table pre-stored in the storage unit 80 to obtain a weighting parameter corresponding to the weighting command, so that the user can set the value of the weighting parameter arbitrarily, in this embodiment, the user sets the value of the weighting parameter according to the measurement result of the measurement apparatus in step S01, that is, the weighting parameter is the ratio of the percentage of the force applied by one side of the user 'S body to the total force applied by the other side of the user' S body. In other embodiments, the user can set the weighting parameters according to his own experience or judgment.
Step S03, the signal processing unit 102 outputs a corresponding electrical signal according to the deformation of the sensing unit 101; step S04, the processor 30 receives the electrical signal output by the signal processing unit 102 and calculates a first power value according to the electrical signal; step S05, the processor 30 multiplies the first power value by the weighting parameter to obtain a second power value; step S06, the processor 30 adds the first power value and the second power value to obtain a total power value; in step S07, the processor 30 converts the total power value into an output signal and outputs the output signal to the display unit 40, and the display unit 40 receives the output signal from the processor 30 and displays the total power value for the user to view, thereby providing the user with a higher level of accuracy for estimating the total power value applied to the bicycle by the cyclist.
For example, when the sensing unit 101 disposed at one side of the bicycle deforms along with the force applied by the rider to one side of the bicycle, the signal processing unit 102 can output a corresponding electrical signal according to the deformation of the sensing unit, the processor 30 receives the electrical signal output by the signal processing unit 102 and calculates a first power value according to the electrical signal, when the value of the weighting parameter set by the user is 0.8, the processor 30 multiplies the first power value by the weighting parameter 0.8 to obtain a second power value, and then adds the first power value and the second power value to obtain a total power value which is converted and output to the display unit 40 for the user to refer to, so that a more accurate total power value can be obtained than that of the conventional single-side power meter.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications to the application of the present invention and the claims should be considered to be included in the scope of the present invention.
Claims (6)
1. A power detection system for a bicycle, the bicycle including a right operating portion and a left operating portion, the right operating portion and the left operating portion being operable by a user to actuate the bicycle, the power detection system comprising:
a power sensor, including a sensing unit and a signal processing unit, the sensing unit is selectively disposed on the right side operation portion or the left side operation portion; the signal processing unit is in signal connection with the sensing unit and outputs a corresponding electric signal according to the deformation of the sensing unit;
a control unit, which is controlled by the user and outputs a weighting instruction;
a storage unit for storing a reference table and the weighting command inputted by the control unit;
the processor is in signal connection with the signal processing unit, the storage unit and the control unit, stores the weighting instruction in the storage unit after receiving the weighting instruction, obtains a weighting parameter corresponding to the weighting instruction according to the reference table, receives the electric signal of the signal processing unit, calculates a first power value according to the electric signal, multiplies the first power value by the weighting parameter to obtain a second power value, and adds the first power value and the second power value to obtain a total power value.
2. The power detection system of claim 1 wherein the weighting parameter is a ratio of a percentage of total force applied by one side of the user's body to a percentage of total force applied by the other side of the user's body.
3. The power detection system as claimed in claim 1, wherein the right operation portion comprises a right pedal, the left operation portion comprises a left pedal, and the sensing unit is disposed on the right pedal or the left pedal.
4. The power detection system of claim 1, wherein the right operation portion comprises a right crank, the left operation portion comprises a left crank, and the sensing unit is disposed on the right crank or the left crank.
5. The power detection system of claim 1, wherein the right handle comprises a right handle, the left handle comprises a left handle, the right handle has a right holding section and a right connecting section, the left handle has a left holding section and a left connecting section, the right holding section, the right connecting section, the left connecting section, and the left holding section are sequentially connected, and the sensing unit is disposed on the right connecting section or the left connecting section.
6. The power detection system of claim 1, comprising a display unit in signal connection with the processor, wherein the processor converts the total power value into an output signal and outputs the output signal to the display unit, and the display unit receives the output signal from the processor and displays the total power value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020454185.4U CN212575597U (en) | 2020-04-01 | 2020-04-01 | Power detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020454185.4U CN212575597U (en) | 2020-04-01 | 2020-04-01 | Power detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212575597U true CN212575597U (en) | 2021-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020454185.4U Active CN212575597U (en) | 2020-04-01 | 2020-04-01 | Power detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212575597U (en) |
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2020
- 2020-04-01 CN CN202020454185.4U patent/CN212575597U/en active Active
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