CN113133761A - Method for judging left and right gait and analysis device thereof - Google Patents
Method for judging left and right gait and analysis device thereof Download PDFInfo
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- 230000005021 gait Effects 0.000 title claims abstract description 125
- 238000004458 analytical method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 22
- 238000004364 calculation method Methods 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/112—Gait analysis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6804—Garments; Clothes
- A61B5/6807—Footwear
Abstract
An analysis device for left and right gaits comprises two sensing units configured on two shoes and at least one calculation unit. Each sensing unit is used for outputting gait information, and the gait information at least comprises coordinate points. The at least one calculation unit obtains a gait track formed by a plurality of coordinate points of each sensing unit according to the gait information of each sensing unit, calculates the slope of a straight line between at least two adjacent coordinate points in the gait track, sets the sensing unit outputting the gait track to be a right sensing unit suitable for the right foot when the slope is greater than 0, and sets the sensing unit outputting the gait track to be a left sensing unit suitable for the left foot when the slope is less than 0. Therefore, the sensing unit is modularized in a mode of automatically judging the left foot or the right foot, and convenience and simplicity of the sensing unit when being installed on the shoe are improved.
Description
Technical Field
The present invention relates to a device for analyzing gait, and more particularly to a method for determining right and left gait and an analyzing device thereof.
Background
A conventional intelligent shoe pad disclosed in Taiwan patent No. M562025 or a conventional intelligent shoe disclosed in Taiwan patent No. M562028 is mainly provided with a sensing unit for sensing exercise information in a shoe or a shoe pad.
Either the aforementioned patent No. M562025 or the aforementioned patent No. M562028 only collects the exercise information for a single shoe or a single insole, that is, when analyzing the gait, the gait is analyzed by the respective movement information, however, the gait of the human body is the result of the interaction between the left foot and the right foot, therefore, there is still a difference between the analysis result and the actual gait, and in order to distinguish the sensing units of the motion information from the left or right foot, the sensing units are usually marked in advance, for example, the sensing unit with number 1 is installed on the right shoe or right insole, the sensing unit with number 2 is installed on the left shoe or left insole, and such marking is achieved either physically or in software, for on-site assembly personnel, the assembly can be carried out after identification, and the programming is more complicated and the installation is more inconvenient.
Disclosure of Invention
The invention aims to provide a left and right gait judging method and an analysis device thereof, which can improve the installation convenience and the simplicity.
The invention relates to a method for judging left and right gaits, which mainly arranges two sensing units on two shoes, wherein each sensing unit is used for outputting gaits information, the gaits information at least comprises coordinate points, and the method is characterized in that: the judging method realizes the following steps through at least one computing unit:
a: and calculating a gait track of each sensing unit according to the gait information of each sensing unit, wherein the gait track is composed of a plurality of coordinate points.
b: and calculating the slope of a straight line between at least two adjacent coordinate points in the gait track, setting the sensing unit outputting the gait track as a right sensing unit suitable for the right foot when the slope is greater than 0, and setting the sensing unit outputting the gait track as a left sensing unit suitable for the left foot when the slope is less than 0.
The invention relates to a method for judging left and right gaits, wherein the step b comprises
b-1: and selecting n coordinate points according to the gait track, wherein a straight line is defined between every two adjacent coordinate points.
b-2: the slope of each line is calculated.
b-3: and judging whether at least one slope in the gait track is larger than 0, if so, performing the step b-4, and if not, performing the step b-5.
b-4: and setting the sensing unit for outputting the gait track as a right sensing unit suitable for the right foot.
b-5: and judging whether at least one slope in the gait track is smaller than 0, if so, performing the step b-6, and if not, returning to the step a.
b-6: and setting the sensing unit for outputting the gait track as a left sensing unit suitable for the left foot.
In the step b-3, the at least one calculating unit judges whether more than half of the slope in the gait track is larger than 0, and in the step b-5, the at least one calculating unit judges whether more than half of the slope in the gait track is smaller than 0.
In the method for judging left and right gaits, in the step a, the at least one computing unit obtains the gait track according to the gait message received by each sensing unit from the starting time to the ending time, wherein the starting time to the ending time is 1 second to 3 seconds.
The method of determining right and left gaits according to claim 4, wherein: the at least one calculation unit obtains m coordinate points from the starting time to the ending time, wherein m is 10-50.
In the method for judging the left gait and the right gait, the n coordinate points are selected from a first coordinate point of the gait track in sequence, and the at least one calculating unit obtains the first coordinate point at the starting time.
An analysis device for left and right gait, which is disposed on two shoes, and comprises: two sensing units, and at least one computing unit.
Each sensing unit is configured on each shoe and is used for outputting gait information, and the gait information at least comprises a coordinate point.
The gait track of each sensing unit is calculated by the at least one calculating unit according to the gait information of each sensing unit, the gait track is composed of a plurality of coordinate points, the at least one calculating unit is further used for calculating the slope of a straight line between at least two adjacent coordinate points in the gait track, when the slope is larger than 0, the sensing unit outputting the gait track is set to be a right sensing unit suitable for a right foot, and when the slope is smaller than 0, the sensing unit outputting the gait track is set to be a left sensing unit suitable for a left foot.
The invention relates to an analysis device for left and right gaits, which comprises two calculation units, wherein each calculation unit is electrically connected with a respective sensing unit.
The left and right gait analysis device only comprises a computing unit, and the computing unit is communicated with the sensing unit through a wireless communication technology.
According to the device for analyzing the left and right gaits, the coordinate points define a plurality of straight lines, each straight line is connected with two adjacent coordinate points, the at least one calculating unit obtains the gaits track according to the gaits information received by each sensing unit from the starting time to the ending time, and the time from the starting time to the ending time is 1-3 seconds.
The invention has the beneficial effects that: the sensing unit is modularized in a mode of automatically judging the left foot or the right foot, so that convenience and simplicity of the sensing unit when being installed on the shoe are improved.
Drawings
Other features and effects of the present invention will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view illustrating an embodiment of the device for analyzing right and left gait of the present invention;
FIG. 2 is a block diagram of the embodiment;
FIG. 3 is a perspective view similar to FIG. 1, but with a computing unit being a component of an electronic device;
FIG. 4 is a flow chart of the embodiment;
fig. 5 is a diagram illustrating the variation of a plurality of coordinate points in two gait trajectories in the embodiment; and
fig. 6 is an enlarged schematic view of fig. 5.
Detailed Description
Referring to fig. 1 and 2, an embodiment of the device for analyzing right and left gaits of the present invention is disposed on two shoes 1 worn on the right and left feet of a human body. The analysis device comprises two sensing units 2, and two calculation units 4.
Each sensing unit 2 is disposed on a respective shoe 1 and is configured to output a gait message S. The gait message S includes at least one coordinate point P located in two dimensions. In the embodiment, each sensing unit 2 is disposed in a middle sole of the respective shoe 1 and adjacent to the arch of the foot, and may also be disposed in an outsole or an upper of the shoe, but not limited thereto.
In the present embodiment, each sensing unit 2 includes at least one of a three-axis acceleration sensor for acquiring three-axis acceleration and a gyroscope for acquiring three-axis angular rate, and is a Micro Electro Mechanical System (MEMS). And each coordinate point P adopts a three-dimensional coordinate system (X, Y, Z) comprising an X value along an X-axis direction, a Y value along a Y-axis direction, and a Z value along a Z-axis direction, wherein the Z axis extends along a vertical direction, and the X axis, the Y axis and the Z axis form an angle vertically. It should be noted that, the present invention only takes the X value and the Y value in the coordinate point P.
In this embodiment, each of the calculating units 4 is electrically connected to the corresponding sensing unit 2, and is disposed on the shoe 1 together with the sensing unit 2. Each computing unit 4 includes a memory 41 for storing or temporarily storing data, a communication module 42 for communicating externally through wireless communication technology, and a processor 43 electrically connected to the memory 41 and the communication module 42. The aforementioned wireless communication technology may be Bluetooth, wifi, NB-IoT, Cat-M1, etc., but is not limited thereto.
As shown in fig. 2 and fig. 5, for example, each sensing unit 2 outputs a plurality of gait messages S during the course of movement, so that the processor 43 of the respective calculating unit 4 obtains a plurality of coordinate points P (x, y, z), and at this time, the moving distance, direction, and angle can be calculated by only taking the coordinate points P (x, y, z) to perform gait analysis. Since the three-axis acceleration sensor and the gyroscope are disclosed in the prior art and are not the technical features of the present application, those skilled in the art can deduce the details of the expansion based on the above description, and therefore, the description is not added.
It should be noted that each computing unit 4 can communicate with a remote electronic device 6, such as a mobile phone, a tablet, or a computer, through the communication module 42. It should be noted that the number of the computing units 4 is not limited to 2, and in other variations of the present embodiment, the number of the computing units 4 may also be 1 as shown in fig. 3, and is independent of the sensing unit 2, for example, a component of the electronic device 6, and since a person skilled in the art can deduce details of the expansion according to the above description, the description is not repeated.
Referring to fig. 1, fig. 2, fig. 4 and fig. 5, the method for determining left and right gaits according to the present invention is implemented by the processor 43 of each computing unit 4 to perform the following steps:
step 51: according to the respective sensing unit 2 at a preset starting time TsTo a termination time TeAnd outputting a plurality of gait messages S to calculate a gait track L of each sensing unit 2 in the moving process. The gait track L is formed by a plurality of coordinate points P in the gait message S.
In this embodiment, the starting time TsTo the end time TeBetween 1 second and 3 seconds, and the processor 43 of each computing unit 4 is able to determine the starting time TsTo the end time TeAnd obtaining m coordinate points P, wherein m is 10-50.
Step 52: selecting n coordinate points P according to the gait trajectory L, and defining a straight line between every two adjacent coordinate points P, in this embodiment, n is 10, and starting from the 1 st coordinate point P of the gait trajectory L in sequenceA total of 10 coordinate points are selected to define 9 straight lines. For convenience of explanation, the 10 coordinate points P are labeled sequentially from P1 to P10, and the processor 43 of each computing unit 4 is at the starting time TsThe 1 st coordinate point P1 is obtained.
It should be noted that each gait track L corresponds to the step of 1 step of the user, and when the n coordinate points P are taken, the gait track L is not limited to the gait track L generated by taking the step of 1 step, but in other variations of the embodiment, five gait tracks L generated by the steps of 1 step to 5 steps of the user may be monitored for calculation, and the higher the number of the monitored steps is, the larger the n value is, and the more accurate the calculation result is.
Step 53: and calculating the slope k of each straight line in the gait track L.
Step 54: and judging whether more than half of the slope k in the gait track L is greater than 0, namely whether more than 5 straight lines have the slope k greater than 0, if not, performing step 55, and if so, performing step 56.
As shown in fig. 6, it should be noted that the slope k is greater than 0 or less than 0, which is determined according to an included angle θ between a straight line between two adjacent coordinate points P and the Y axis, and according to the formula, the slope k is tan θ, when the included angle θ is less than 90 degrees, the slope k is greater than 0, and when the included angle θ is greater than 90 degrees, the slope k is less than 0.
Step 55: and judging whether more than half of the slope k in the gait track L is smaller than 0, namely whether more than 5 straight lines have slopes smaller than 0, if not, returning to the step 51, and if so, executing the step 57.
Step 56: the sensing unit 2 outputting the gait trajectory L is set as a right sensing unit suitable for the right foot.
And 57: the sensing unit 2 outputting the gait trajectory L is set as a left sensing unit suitable for the left foot.
Accordingly, the processor 43 of the computing unit 4 automatically determines whether the sensing unit 2 in each shoe 1 is disposed on the right shoe 1 or the left shoe 1, and performs gait analysis of the left and right feet, such as analyzing whether the gait of the left and right feet is inner eight or outer eight, analyzing whether the gait of the left and right feet is deviated from the center, analyzing whether the gait of the left and right feet is inverted or everted, or analyzing whether the gait of the left and right feet falls on the ground with the toe or the pedal.
From the above description, the advantages of the foregoing embodiments can be summarized as follows:
the invention can automatically judge whether each sensing unit 2 is configured on the shoe 1 worn on the right foot or the shoe 1 worn on the left foot, therefore, the sensing unit 2 does not need to mark or distinguish the left foot and the right foot in advance, not only can modularize the sensing unit 2 and improve the convenience and the simplicity when the sensing unit 2 is installed on the shoe 1, but also can analyze the gait of the two feet during the action in a mode of simultaneously acquiring the gait information S of the left foot and the right foot, thereby obtaining the gait closer to the actual action and improving the accuracy when analyzing the gait.
The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and the invention is still within the scope of the present invention by simple equivalent changes and modifications made according to the claims and the contents of the specification.
Claims (10)
1. A method for judging left and right gaits is mainly to configure two sensing units on two shoes, each sensing unit is used for outputting gaits information, the gaits information at least comprises coordinate points, and the method is characterized in that: the judging method realizes the following steps through at least one computing unit:
a: calculating a gait track of each sensing unit according to the gait information of each sensing unit, wherein the gait track is composed of a plurality of coordinate points; and
b: and calculating the slope of a straight line between at least two adjacent coordinate points in the gait track, setting the sensing unit outputting the gait track as a right sensing unit suitable for the right foot when the slope is greater than 0, and setting the sensing unit outputting the gait track as a left sensing unit suitable for the left foot when the slope is less than 0.
2. The method of determining right and left gaits according to claim 1, wherein: step b comprises
b-1: selecting n coordinate points according to the gait track, wherein a straight line is defined between every two adjacent coordinate points;
b-2: calculating the slope of each straight line;
b-3: judging whether at least one slope in the gait track is larger than 0, if so, performing the step b-4, and if not, performing the step b-5;
b-4: setting the sensing unit for outputting the gait track as a right sensing unit suitable for the right foot;
b-5: judging whether at least one slope in the gait track is smaller than 0, if so, performing the step b-6, and if not, returning to the step a; and
b-6: and setting the sensing unit for outputting the gait track as a left sensing unit suitable for the left foot.
3. The method of determining right and left gaits according to claim 2, wherein: in step b-3, the at least one computing unit determines whether more than half of the slopes in the gait trajectory are greater than 0, and in step b-5, the at least one computing unit determines whether more than half of the slopes in the gait trajectory are less than 0.
4. The method of determining right and left gaits according to claim 2, wherein: in step a, the at least one computing unit obtains the gait track according to the gait message received by each sensing unit from the starting time to the ending time, wherein the starting time to the ending time is 1 second to 3 seconds.
5. The method of determining right and left gaits according to claim 4, wherein: the at least one calculation unit obtains m coordinate points from the starting time to the ending time, wherein m is 10-50.
6. The method of determining right and left gaits according to claim 4, wherein: the n coordinate points are sequentially selected from a first coordinate point of the gait track, and the at least one calculation unit obtains the first coordinate point at the starting time.
7. An analysis device for left and right gait, which is disposed on two shoes, and comprises:
each sensing unit is configured on each shoe and is used for outputting gait information, and the gait information at least comprises coordinate points; and
at least one computing unit;
the method is characterized in that:
the gait track of each sensing unit is calculated by the at least one calculating unit according to the gait information of each sensing unit, the gait track is composed of a plurality of coordinate points, the at least one calculating unit is further used for calculating the slope of a straight line between at least two adjacent coordinate points in the gait track, when the slope is larger than 0, the sensing unit outputting the gait track is set to be a right sensing unit suitable for a right foot, and when the slope is smaller than 0, the sensing unit outputting the gait track is set to be a left sensing unit suitable for a left foot.
8. The device for analyzing right and left gaits according to claim 7, wherein: the analysis device comprises two calculation units, and each calculation unit is electrically connected with a respective sensing unit.
9. The device for analyzing right and left gaits according to claim 7, wherein: the analysis device only comprises a computing unit, and the computing unit is communicated with the sensing unit through a wireless communication technology.
10. The device for analyzing right and left gaits according to claim 7, wherein: the coordinate points define a plurality of straight lines, each straight line is connected with two adjacent coordinate points, the at least one calculating unit obtains the gait track according to the gait information received by each sensing unit from the starting time to the ending time, and the starting time to the ending time is 1-3 seconds.
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