TWI578961B - Temperature - Sensitive Color - changing Gait Analysis System - Google Patents

Description

Temperature-sensitive gait analysis system

The present invention relates to a limb dynamics analysis system, and more particularly to an analysis system for foot gait.

In many ergonomic research institutions, it is often necessary to analyze the walking gait of humans or animals for product development, such as the development of sports shoes or leg mobility aids. Some medical research institutions need to understand the impact of brain or central nervous system damage on walking function, and assess the degree of walking dysfunction caused by damage to the brain or central nervous system of animals.

The current gait analysis is to walk the object on a transparent glass plate, and then set up an image capturing device under the transparent glass plate to capture the image of the foot of the object to be stepped on the transparent glass plate. According to the captured image, the foot is stepped on the transparent glass plate to define the shape of the palm print, and then the walking gait is analyzed, but the gait analysis method is quite troublesome and difficult to shoot. The image of the bottom of the foot is accurately analyzed to accurately measure the area where the transparent glass plate is actually stepped on, and there is still room for improvement.

Accordingly, it is an object of the present invention to provide a thermochromic gait analysis system that provides more accurate gait data.

Therefore, the temperature-sensitive gait analysis system of the present invention can be used to analyze the walking gait of the object to be tested, and includes a base station, an image capturing device, and a gait analyzing device connected to the image capturing device. . The base can be used for the subject to walk with the sole of the foot, and the color change can be generated according to the temperature of the foot of each stepping contact, and a color changing area is correspondingly generated. The image capturing device can capture an image of the color changing area of the base. The gait analysis device can receive the shape change and the color change of the image of each color-changing region captured by the image capturing device, and establish a stepping mode data for the sole corresponding to each color-changing region.

The effect of the invention: by analyzing the color change of the base which can be sensed by the object to be measured by the stepping of the object to be measured, more accurate information on the foot pedaling can be obtained, and the accuracy of the established walking gait data can be greatly improved. It is an innovative and temperature-sensitive gait analysis system with better accuracy.

3‧‧‧Abutment

30‧‧‧Discoloration area

301‧‧‧Colored blocks

31‧‧‧ tablet

32‧‧‧temperature sensitive film

4‧‧‧Image capture device

5‧‧‧gait analysis device

51‧‧‧Purchasing Change Analysis Module

510‧‧‧Stepping on the palm print

52‧‧‧Stepping time analysis module

53‧‧‧Stepping mode creation module

54‧‧‧gait building module

6‧‧‧Database installation

900‧‧‧Subjects

901‧‧‧foot

Other features and effects of the present invention will be apparent from the embodiments of the present invention. FIG. 1 is a perspective view of one embodiment of the thermochromic gait analysis system of the present invention; A partial side view of an example; FIG. 3 is a functional block diagram of the embodiment; 4 is a partial bottom view of a base of the embodiment, schematically illustrating a discolored area generated by the four feet of a test object being stepped on the base; and FIG. 5 is a schematic diagram illustrating a foot being stepped on during a stepping process. The shape change and the color change of the color-changing region generated by the stepping on the base.

As shown in FIG. 1 and FIG. 2, the embodiment of the sensible temperature-changing gait analysis system of the present invention is suitable for measuring and analyzing the walking gait of a subject 900 such as a human or an animal. In this embodiment, the figure The subject 900 to be tested is a mouse, but is not limited thereto. The thermochromic gait analysis system includes a base 3 for stepping on the foot 901 of the subject 900, an image capturing device 4 mounted under the base 3, and a signal connected to the image. The gait analysis device 5 of the capture device 4 and a database device 6 connected to the gait analysis device 5 are connected.

The base 3 has a flat plate 31 and a thermochromic film 32 which is coated and fixed on the top surface of the flat plate 31 and which is sensitive to temperature change. In the present embodiment, the flat plate 31 is transparent so that the color change of the thermochromic film 32 can be viewed from the bottom up.

As shown in FIG. 1, 4, and 5, the thermochromic film 32 can sense the temperature of each part of the foot 901 of the stepping contact, and correspondingly generate a color change according to the temperature of each part of the sole 901, and correspondingly generate a color. The color changing region 30, and the degree of influence on the temperature of the thermochromic film 32 may be different at the same time because the sole 901 is used to step on the respective portions of the base 3. In addition, when the sole 901 leaves the base 3, the thermochromic film 32 is cooled to the temperature of the environment, and is changed back to the color before being touched, so the foot 901 is stepped on each of the discolored regions 30 generated. The color appearing in each part may be different, and there may be a plurality of coloring blocks 301 that respectively present different colors or different color shades, and the color and shape of the coloring blocks 301 may vary with the pedaling process. That is, when the object to be tested 900 is walking on the base 3, the base 3 senses each stepping contact of each of the soles 901 of the object to be tested 900, and correspondingly generates a color changing area 30, The color of each part of the color-changing area 30 changes with time and gradually disappears after the foot 901 leaves.

The color change of the thermochromic film 32 may be gradually changed from transparent to a specific color, or may be changed from a specific color to another color, for example, from white to black, and may exhibit different color shade changes with temperature. In the embodiment, the thermochromic film 32 is transparent before being discolored, but is not limited thereto. In addition, when implemented, the thermochromic film 32 can also be designed to change a variety of colors, for example, three or more color changes can be exhibited according to the temperature, for example, the normal temperature (25 ° C) is transparent, 25 ~ 27 ° C It turns white, turns red at 27 to 30 ° C, turns black at 30 ° C or higher, and causes the thermochromic film 32 to exhibit different color shade changes with temperature. However, when implemented, it is not limited to the above type of discoloration.

The image capturing device 4 is disposed under the base 3 and can capture the image of the base 3, that is, capture an image of each of the color changing regions 30 generated by the base 3 being stepped on by the object 900. .

As shown in FIGS. 3, 4, and 5, the gait analysis device 5 can receive an image of the color-changing regions 30 that the image capturing device 4 captures and output, and correspondingly generate a walking step for the object to be tested 900. Information. The gait analysis device 5 includes a palm print change analysis module 51, a tread time analysis module 52, a pedaling mode creation module 53, and a gait creation module 54.

The palm print change analysis module 51 can analyze the shape of the outline of the color change area 30 formed by each of the feet at different times to identify the stepping print 510 corresponding to the color change area 30 at each time point, as shown in FIG. . Then, all the treading prints 510 in a stepping process are further integrated in time series, and the treading change data of each color changing area 30 in the corresponding pedaling process is obtained. Since the image recognition technology for recognizing the outline of the image through image analysis is numerous and is not an improvement point of the present invention, it will not be described in detail. The so-called "one stepping process" is defined as a period in which a foot starts to contact the base 3 to completely leave the base 3.

The stepping time analysis module 52 can analyze the color change of the treading 510 corresponding to the color changing area 30, such as the color depth or hue of the color, to analyze and estimate that each coloring block 301 of the color changing area 30 is corresponding. The time of contact of the foot 901, including the length of contact stay and the order of stepping on and leaving.

During a stepping step in which the sole 901 of the subject 900 starts to step on the base 3, in the initial stage of pedaling, the portion of the base 3 that is first stepped on will first undergo a color change, for example, a color change starts from a transparent shape. . And the foot 901 of the subject 900 is ready to leave the base At the end of the stepping of the table 3, the portion of the base 3 that is separated from the sole 901 first cools down, and first returns to the original color, for example, gradually returns to the transparent shape. In the middle of the pedaling, the sole 901 will be pressed against the base 3 substantially.

Since the longer the foot 901 contacts the base 3, the more heat is applied to the block of the thermochromic film 32 that is contacted, the temperature of the block of the thermochromic film 32 that is contacted is relatively higher. The color change that is presented will be more pronounced or a color change that exhibits a different hue. Therefore, by analyzing the color change of each coloring block 301 of each color changing area 30 during a stepping process, it is estimated that the coloring blocks 301 of each color changing area 30 are stepped on by the foot 901. The dwell time data is stepped on, and the contact sequence data of the coloring blocks 301 of each of the color changing regions 30 being stepped on and off.

The stepping mode setting module 53 can receive the treading change data analyzed by the palm printing change analysis module 51 for each color changing area 30, and the treading analyzed by the treading time analysis module 52 for each color changing area 30. The dwell time data and the contact sequence data, and the treading time data of each color changing area 30 and the contact sequence data are respectively integrated with the treading 510 in the treading change data to establish an output of each color change. The stepping pattern data of the sole 901 corresponding to the region 30 during a stepping process, for example, the sequence and the dwell time of each part of the sole 901 corresponding to each of the color changing regions 30 contacting the base 3 during one stepping.

The gait establishing module 54 aggregates the measured object 900 at the All the pedaling patterns of each foot in the walking process of the abutment 3, that is, the stamping pattern data of each stepping of the four feet of the mouse, and analyzing the distance and time difference between the two color changing regions 30 successively generated by the same foot. In order to establish the walking gait of the subject 900, for example, the stepping contact portion change of the sole anterior and the forefoot foot 901, the contact area and the contact urging change, the step distance, the stepping time, and the like, but not limited to the above.

The database device 6 can be used by the gait analysis device 5 to store the data analyzed by the palm print change analysis module 51, the stepping time analysis module 52, the stepping mode establishing module 53, and the gait establishing module 54.

In the embodiment, the flat plate 31 of the base 3 is designed to be transparent, and the color change image generated by the thermochromic film 32 being stepped on can be conveniently taken from the bottom up. However, the thermochromic film 32 may be disposed on the bottom surface of the flat plate 31 during implementation. In addition, when implemented, the image capturing device 4 can also be changed to a type disposed above the base 3, and can be used to capture the temperature change of the base 3 when the foot 901 of the object 900 is removed from the base 3. The images of the color-changing regions 30 are generated, and the walking gait analysis is performed accordingly.

Further, at the time of implementation, the thermochromic film 32 may be embedded in the transparent flat plate 31 to avoid wear and prolong the service life. Furthermore, in the implementation, the base 3 is not required to provide the thermochromic film 32, and the base 3 can be directly produced by mixing the thermochromic material with a thermoplastic material such as plastic or glass. The temperature of the sole 901 is sensed to produce a color change.

In summary, by analyzing the color change of the base 3 that is sensitive to temperature change by the object 900 being measured, it is more accurate. The foot 901 stepping on the information and greatly improving the accuracy of the established walking gait data is an innovative and better accurate gait analysis system design. Therefore, the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

3‧‧‧Abutment

31‧‧‧ tablet

32‧‧‧temperature sensitive film

4‧‧‧Image capture device

5‧‧‧gait analysis device

900‧‧‧Subjects

901‧‧‧foot

Claims (8)

A temperature-sensitive color gait analysis system can be used to analyze a walking gait of a test subject, and includes: a base for the test object to walk with its soles, and can follow the foot of each stepping touch a temperature change to produce a color change, and correspondingly to generate a color change area; an image capture device for capturing an image of the color change region of the base; and a gait analysis device, the signal being coupled to the image capture device, The shape change and the color change of the image of each color-changing area captured by the image capturing device may be received to establish a stepping mode in which each foot of the object to be measured walks on the base. The thermochromic gait analysis system according to claim 1, wherein the gait analysis device comprises a palm print change analysis module, a tread time analysis module, and a pedaling mode establishing module, and the palm print change analysis The module can analyze the shape change of each color changing area and recognize the stepping and printing change data of the corresponding foot of the output. The stepping time analysis module can analyze the color change of each stepping palm print, and analyze each foot corresponding to the stepping print. The step-by-step time of the part and the contact sequence data of the stepping contact and the disengagement, the stepping mode establishing module can analyze the change of the treading print, the treading time and the step contact and the disengagement contact sequence data of each color changing area during a stepping process. To establish the output of the pedaling mode. The thermochromic gait analysis system according to claim 2, wherein The gait analysis device further includes a step of analyzing all the pedaling modes established by the pedaling mode establishing module for each of the feet of the object to be measured, and establishing a walking gait for the soles of the objects of the object to be tested. Gait build module. The thermochromic gait analysis system according to claim 1, 2 or 3, wherein the base station comprises a flat plate, and a layer is fixed to the flat plate and can sense the temperature change of the foot of the test object to be stepped on. The color creates a thermochromic film of the discolored area. The thermochromic gait analysis system according to claim 4, wherein the thermochromic film is disposed on the top surface of the flat plate or embedded in the flat plate, and the flat plate is provided for viewing upwards. The color changing area of the thermochromic film is transparent, and the image capturing device is disposed under the base, and the color changing area image of the thermochromic film can be drawn upward. The thermochromic gait analysis system of claim 4, wherein the thermochromic film is disposed on a bottom surface of the flat plate, and the image capturing device is disposed under the base and can be drawn upward The color-changing area image of the thermochromic film. The thermochromic gait analysis system according to claim 4, wherein the thermochromic film is disposed on the bottom surface of the flat plate or embedded in the flat plate, and the flat plate is provided for viewing the temperature sensitively downwardly. The color changing film is transparent, and the image capturing device is disposed above the base, and the temperature sensitive color film is formed during the stepping of the foot after the foot is stepped off the base. The image of the color change area. The thermochromic gait analysis system according to claim 4, wherein the The thermochromic film is disposed on the top surface of the flat plate, and the image capturing device is disposed above the base plate, and the tweeter film is stepped on the sole after the foot is stepped off the base. The image of the discolored area formed by the temperature sensing.