Weight loss gait rehabilitation platform and fall prevention training method

Abstract

The application relates to the technical field of rehabilitation training, in particular to a weight-reducing gait rehabilitation platform and a fall-preventing training method. The weight-reducing gait rehabilitation platform comprises a rack, a left running belt, a right running belt, a left motor and a right motor. The method comprises the following steps: in response to a user selecting a training mode, the left motor and the right motor are controlled to start running, and the training duration is timed; during the running of the motors, the distance between the human body and the front end of the running belt and the distance between the human body and the rear end of the running belt are detected in real time; in response to the distance between the human body and the front end of the running belt being less than a preset distance or the distance between the human body and the rear end of the running belt being less than a preset distance, the left motor and the right motor are controlled to stop running; and in response to the training duration being greater than or equal to a preset training duration, the left motor and the right motor are controlled to stop running. The method can effectively prevent the user from falling off the running belt and guarantee the safety of the user during lower limb training.

Description

Technical Field

[0001] This invention generally relates to the field of rehabilitation training technology. More specifically, this invention relates to a weight-loss gait rehabilitation platform and a fall prevention training method. Background Technology

[0002] Legs and feet play a vital role in people's daily lives and work. If a person injures their leg, rehabilitation training is necessary after surgery to prevent muscle and ligament atrophy and to help them adapt to post-rehabilitation walking coordination. Current technology typically uses treadmills for leg rehabilitation training. However, if the user runs too fast, they may get too close to the end of the treadmill belt, increasing the risk of falling and compromising safety during rehabilitation. Summary of the Invention

[0003] To address the technical problem of poor safety in existing leg rehabilitation training methods, this invention provides solutions in the following aspects.

[0004] In a first aspect, the present invention provides a fall prevention training method based on a weight-reduced gait rehabilitation platform, the weight-reduced gait rehabilitation platform comprising a frame, a left treadmill belt and a right treadmill belt arranged parallel to each other and adjacent to each other on the frame, and a left motor and a right motor respectively for driving the rotation of the two treadmill belts, the method comprising:

[0005] In response to the user's selection of a training mode, the left and right motors are controlled to start running and the training duration is timed.

[0006] During motor operation, the distance between the human body and the front end of the treadmill belt and the distance between the human body and the rear end of the treadmill belt are detected in real time.

[0007] In response to the distance between the human body and the front end of the treadmill belt being less than a preset distance or the distance between the human body and the rear end of the treadmill belt being less than a preset distance, the left and right motors are controlled to stop running; in response to the training duration being greater than or equal to the preset training duration, the left and right motors are controlled to stop running.

[0008] In one embodiment, an image acquisition device for acquiring images of the human body is provided at the front end of the weight-loss gait rehabilitation platform, and the method further includes:

[0009] In response to the distance between the human body and the two ends of the treadmill being greater than a preset safety range and the distance between the human body and the image acquisition device being less than a first preset threshold, the rotation speeds of the left and right motors are increased by a preset step size, respectively; in response to the distance between the human body and the two ends of the treadmill being greater than a preset safety range and the distance between the human body and the image acquisition device being greater than a second preset threshold, the rotation speeds of the left and right motors are decreased by a preset step size, respectively.

[0010] In one embodiment, an image acquisition device for acquiring images of the human body is provided at the end of the weight-loss gait rehabilitation platform, and the platform further includes:

[0011] If the distance between the human body and both ends of the treadmill belt is greater than a preset safety range and the distance between the human body and the image acquisition device is less than a first preset threshold, then the speeds of the left and right motors are increased. The expression for calculating the increased speeds is as follows:

[0012]

[0013] If the distance between the human body and both ends of the treadmill belt exceeds a preset safety range and the distance between the human body and the image acquisition device exceeds a second preset threshold, then the speeds of the left and right motors are reduced. The expression for calculating the reduced speeds is as follows:

[0014]

[0015] In the above formulas, v0 represents the motor speed before adjustment, v1 represents the speed after adjustment, v2 represents the speed after adjustment, M1 represents the first preset threshold, M2 represents the second preset threshold, M3 represents the distance between the head and the tail of the weight-reducing gait rehabilitation platform, Δv represents the standard value of the speed adjustment step length, and M represents the distance between the human body and the image acquisition device.

[0016] In one embodiment, the method further includes: detecting in real time the distance between the user's left foot and the rear end of the left treadmill belt, and the distance between the user's right foot and the rear end of the right treadmill belt during training, and recording them as the first distance and the second distance, respectively.

[0017] In response to a first distance being less than a second distance and the difference between the two being greater than a third preset threshold, the speed of the left motor is controlled to decrease by a preset step, and the speed of the right motor is controlled to increase by a preset step; in response to a first distance being greater than a second distance and the difference between the two being greater than a third preset threshold, the speed of the left motor is controlled to increase by a preset step, and the speed of the right motor is controlled to decrease by a preset step.

[0018] In one embodiment, the training modes include a forward-moving training mode, a backward-moving training mode, and a differential training mode. In the forward-moving training mode, the left motor and the right motor have the same rotation speed and the rotation shafts both rotate in the first direction. In the backward-moving training mode, the left motor and the right motor have the same rotation speed and the rotation shafts both rotate in the opposite direction to the first direction. In the differential training mode, the left motor and the right motor have different rotation speeds and the rotation shafts rotate in the same direction.

[0019] In one embodiment, the training mode includes a single-limb training mode, in which one of the two motors is controlled to run while the other stops running.

[0020] In a second aspect, the present invention provides a weight-reducing gait rehabilitation platform, comprising a frame, a left running belt and a right running belt arranged parallel to each other and adjacent to each other on the frame, a left motor and a right motor for driving the rotation of the two running belts respectively, and a control circuit for controlling the left motor and the right motor, the control circuit being used to implement the fall prevention training method based on the weight-reducing gait rehabilitation platform of the present invention.

[0021] In one embodiment, the control circuit includes a control chip, a first distance sensor for detecting the distance between the human body and the front end of the running belt, and a second distance sensor for detecting the distance between the human body and the rear end of the running belt. The control chip is connected to the first distance sensor and the second distance sensor and is connected to the left motor and the right motor for control.

[0022] In one embodiment, the control circuit further includes a third distance sensor for detecting the distance between the user's left foot and the rear end of the left treadmill belt, and a fourth distance sensor for detecting the distance between the user's right foot and the rear end of the right treadmill belt, the control chip being connected to the third and fourth distance sensors.

[0023] The technical effect of the present invention is as follows: The fall prevention training method based on the weight-reduction gait rehabilitation platform of the present invention can effectively prevent users from falling off the running belt by detecting the distance between the user's body and both ends of the running belt in real time during the user's running process, and controlling the drive motor of the running belt to stop running when the distance between the user's body and the front or rear end of the running belt is too close, thereby ensuring the safety of the user when performing lower limb training.

[0024] Furthermore, since the image acquisition device is located at the front end of the weight-loss gait rehabilitation platform, when the distance between the human body and the image acquisition device is too close, it indicates that the treadmill speed is too slow and the human body is too close to the front end of the treadmill. Increasing the speed of the left and right motors by a preset step length can prevent the human body from continuing to shift towards the front end of the treadmill. When the distance between the human body and the image acquisition device is too far, it indicates that the treadmill speed is too fast and the human body is too close to the rear end of the treadmill. Decreasing the speed of the left and right motors by a preset step length can prevent the human body from continuing to shift towards the rear end of the treadmill. The method in this embodiment can further prevent the user from falling off the treadmill.

[0025] Furthermore, since the image acquisition device is located at the front end of the weight-loss gait rehabilitation platform, when the distance between the human body and the image acquisition device is too close, it indicates that the treadmill speed is too slow and the human body is too close to the front end of the treadmill. By increasing the speeds of the left and right motors respectively, the human body can be prevented from continuing to shift towards the front end of the treadmill. By making the increased stride length negatively correlated with the distance between the human body and the image acquisition device, the increased speed is greater when the human body is very close to the image acquisition device, and smaller when the human body is far from the image acquisition device, thus avoiding excessive speed adjustments of the left and right motors; when the distance between the human body and the image acquisition device is too close... The distance indicates that the treadmill is moving too fast and the user is too close to the rear of the treadmill. Reducing the speed of the left and right motors can prevent the user from continuing to drift towards the rear of the treadmill. By making the step size of the speed adjustment positively correlated with the distance between the user and the image acquisition device, the closer the user is to the rear of the treadmill, the larger the step size for speed adjustment, resulting in a relatively smaller speed after the speed reduction; conversely, the farther the user is from the rear of the treadmill, the smaller the step size for speed adjustment, resulting in a relatively larger speed after the speed reduction. This avoids excessive speed adjustments by the left and right motors. Thus, while preventing the user from falling off the treadmill, it also avoids excessive speed adjustments, ensuring a comfortable experience for the user during lower limb training.

[0026] Furthermore, when a user is running on the gait rehabilitation platform, if the distance between their two feet is too large, it indicates that the running belt corresponding to one foot is rotating too fast, which can easily lead to a fall. When the first distance is less than the second distance and the difference between the two is greater than a preset threshold, it indicates that the user's right foot is in front and the left foot is behind, and the distance between their two feet is too large. By controlling the speed of the left motor to decrease the preset step length and the speed of the right motor to increase the preset step length, the distance between the user's two feet can be prevented from increasing further, thus preventing the user from falling during training. When the first distance is greater than the second distance and the difference between the two is greater than a preset threshold, it indicates that the user's right foot is behind and the left foot is in front, and the distance between their two feet is too large. By controlling the speed of the left motor to increase the preset step length and the speed of the right motor to decrease the preset step length, the distance between the user's two feet can be prevented from increasing further, thus further preventing the user from falling during training. Attached Figure Description

[0027] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0028] Figure 1 This is a flowchart illustrating an embodiment of the fall prevention training method based on a weight-reducing gait rehabilitation platform according to the present invention.

[0029] Figure 2 This is a schematic diagram illustrating the structure of a weight-loss gait rehabilitation platform according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram illustrating the control circuit structure of an embodiment of the present invention. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] Example of a fall prevention training method based on a weight-reduction gait rehabilitation platform:

[0034] like Figure 1As shown, the fall prevention training method based on a weight-reduced gait rehabilitation platform of the present invention includes a frame, a left treadmill belt and a right treadmill belt arranged parallel to each other and adjacent to each other on the frame, and a left motor and a right motor respectively for driving the rotation of the two treadmill belts. The method of the present invention includes:

[0035] S101, Control the motor to run and start training timing, specifically: In response to the user selecting the training mode, control the left and right motors to start running and start timing the training duration;

[0036] In this embodiment, there can be multiple training modes, such as: forward walking training, backward walking training, differential speed training, and single limb training. In different training modes, the operating states of the left motor and the right motor are different.

[0037] S102. During motor operation, the distance between the human body and the front end of the treadmill belt and the distance between the human body and the rear end of the treadmill belt are detected in real time.

[0038] Distance sensors can be installed on the frame at the beginning and end of the treadmill of the weight loss gait rehabilitation platform to detect the distance between the human body and the beginning of the treadmill, as well as the distance between the human body and the end of the treadmill.

[0039] By setting up distance sensors to detect the distance between the human body and the two ends of the treadmill belt, the drive motor of the treadmill belt can be controlled when the human body gets too close to the end of the treadmill belt, so as to prevent the user from falling off the treadmill belt and protect the user.

[0040] S103. Control the motor to stop, specifically: in response to the distance between the human body and the front end of the running belt being less than a preset distance or the distance between the human body and the rear end of the running belt being less than a preset distance, control the left motor and the right motor to stop running; in response to the training duration being greater than or equal to the preset training duration, control the left motor and the right motor to stop running.

[0041] In this embodiment, the preset distance can be calculated according to the following expression:

[0042] x1 = 0.5 + v × 1 × 10%;

[0043] In the formula, x1 is the preset distance, v is the average current speed of the two running belts in m / s, and the running belt speed ranges from 0 to 1.2 m / s.

[0044] The fall prevention training method based on a weight-reduction gait rehabilitation platform of the present invention detects the distance between the user's body and both ends of the running belt in real time during the user's running process, and controls the drive motor of the running belt to stop running when the distance between the user's body and the front or rear end of the running belt is too close, thereby effectively preventing the user from falling off the running belt and ensuring the safety of the user when performing lower limb training.

[0045] In one embodiment, an image acquisition device for capturing images of the human body is provided at the front end of the weight-loss gait rehabilitation platform. The fall prevention training method based on the weight-loss gait rehabilitation platform further includes: in response to the distance between the human body and both ends of the treadmill belt being greater than a preset safety range and the distance between the human body and the image acquisition device being less than a first preset threshold, increasing the rotational speed of the left and right motors by a preset step length; and in response to the distance between the human body and both ends of the treadmill belt being greater than a preset safety range and the distance between the human body and the image acquisition device being greater than a second preset threshold, decreasing the rotational speed of the left and right motors by a preset step length. The preset step length can be determined based on the relationship between the motor rotational speed and the treadmill belt speed, as well as the range of treadmill belt speeds.

[0046] By setting up an image acquisition device, images of the user's legs can be captured during training, and deep learning algorithms can be used to calculate the user's step frequency, step length, and stride length during exercise.

[0047] The first preset threshold can be 0.5m-0.62m or calculated according to the above preset distance calculation expression; the second preset threshold can be 2m or other suitable distance thresholds. For weight loss gait rehabilitation platforms with a treadmill belt length of less than 2m, the second preset threshold can be four-fifths of the treadmill belt length.

[0048] Since the image acquisition device is located at the front end of the weight-loss gait rehabilitation platform, when the distance between the human body and the image acquisition device is too close, it indicates that the treadmill speed is too slow and the human body is too close to the front end of the treadmill. Increasing the speed of the left and right motors by a preset step length can prevent the human body from continuing to shift towards the front end of the treadmill. When the distance between the human body and the image acquisition device is too far, it indicates that the treadmill speed is too fast and the human body is too close to the rear end of the treadmill. Decreasing the speed of the left and right motors by a preset step length can prevent the human body from continuing to shift towards the rear end of the treadmill. The method in this embodiment can further prevent the user from falling off the treadmill.

[0049] In one embodiment, an image acquisition device for acquiring images of the human body is provided at the end of the weight-reducing gait rehabilitation platform, and the fall prevention training method based on the weight-reducing gait rehabilitation platform further includes:

[0050] If the distance between the human body and both ends of the treadmill belt is greater than a preset safety range and the distance between the human body and the image acquisition device is less than a first preset threshold, then the speeds of the left and right motors are increased. The expression for calculating the increased speeds is as follows:

[0051]

[0052] If the distance between the human body and both ends of the treadmill belt exceeds a preset safety range and the distance between the human body and the image acquisition device exceeds a second preset threshold, then the speeds of the left and right motors are reduced. The expression for calculating the reduced speeds is as follows:

[0053]

[0054] In the above formulas, v0 represents the motor speed before adjustment, v1 represents the increased speed, v2 represents the decreased speed, M1 represents the first preset threshold, M2 represents the second preset threshold, M3 represents the distance between the head and tail of the weight-loss gait rehabilitation platform, Δv represents the standard value of the speed adjustment step size, and M represents the distance between the human body and the image acquisition device. The standard value of the speed adjustment step size can be determined based on the relationship between the motor speed and the treadmill belt speed, as well as the range of treadmill belt speeds. In one embodiment, the standard value of the speed adjustment step size can be 200 r / min.

[0055] Because the image acquisition device is located at the front of the weight-loss gait rehabilitation platform, when the distance between the human body and the image acquisition device is too close, it indicates that the treadmill speed is too slow and the human body is too close to the front of the treadmill. Increasing the speeds of the left and right motors can prevent the human body from continuing to shift towards the front of the treadmill. By making the increased stride length negatively correlated with the distance between the human body and the image acquisition device, the increased speed is higher when the human body is very close to the image acquisition device, and lower when the human body is far from the image acquisition device, thus avoiding excessive speed adjustments to the left and right motors. When the distance between the human body and the image acquisition device is too far... This indicates that the treadmill is moving too fast and the user is too close to the rear of the treadmill. By reducing the speeds of the left and right motors, the user can be prevented from continuing to drift towards the rear of the treadmill. Furthermore, by making the step size of the speed adjustment positively correlated with the distance between the user and the image acquisition device, the closer the user is to the rear of the treadmill, the larger the step size for speed adjustment, resulting in a relatively smaller speed; conversely, the farther the user is from the rear of the treadmill, the smaller the step size for speed adjustment, resulting in a relatively larger speed. This avoids excessive speed adjustments by the left and right motors. Therefore, while preventing the user from falling off the treadmill, it also avoids excessive speed adjustments, ensuring a comfortable experience for the user during lower limb training.

[0056] In one embodiment, the method further includes: detecting in real time the distance between the user's left foot and the rear end of the left treadmill belt, and the distance between the user's right foot and the rear end of the right treadmill belt during training, and recording them as the first distance and the second distance, respectively.

[0057] In response to a first distance being less than a second distance and the difference between the two being greater than a third preset threshold, the speed of the left motor is controlled to decrease by a preset step, and the speed of the right motor is controlled to increase by a preset step; in response to a first distance being greater than a second distance and the difference between the two being greater than a third preset threshold, the speed of the left motor is controlled to increase by a preset step, and the speed of the right motor is controlled to decrease by a preset step.

[0058] In this embodiment, the third preset threshold can be 0.1m.

[0059] When a user performs running training on a gait rehabilitation platform, if the distance between their two feet is too large, it indicates that the running belt corresponding to one foot is rotating too fast, which can easily lead to a fall. When the first distance is less than the second distance and the difference between the two is greater than a preset threshold, it indicates that the user's right foot is in front and the left foot is behind, and the distance between their two feet is too large. By controlling the speed of the left motor to decrease the preset step length and the speed of the right motor to increase the preset step length, the distance between the user's two feet can be prevented from increasing further, thus preventing the user from falling during training. When the first distance is greater than the second distance and the difference between the two is greater than a preset threshold, it indicates that the user's right foot is behind and the left foot is in front, and the distance between their two feet is too large. By controlling the speed of the left motor to increase the preset step length and the speed of the right motor to decrease the preset step length, the distance between the user's two feet can be prevented from increasing further, thus preventing the user from falling during training. The method of this invention can further prevent users from falling during training.

[0060] In one embodiment, the training modes include a forward-moving training mode, a backward-moving training mode, and a differential training mode. In the forward-moving training mode, the left motor and the right motor have the same rotation speed and the rotation shafts both rotate in the first direction. In the backward-moving training mode, the left motor and the right motor have the same rotation speed and the rotation shafts both rotate in the opposite direction to the first direction. In the differential training mode, the left motor and the right motor have different rotation speeds and the rotation shafts rotate in the same direction.

[0061] When walking forward, the body leans slightly forward, shifting the center of gravity forward. The muscles in the front of the legs (such as the quadriceps) are activated alternately, with the heel landing first to propel the body forward. When walking backward, the body leans slightly backward, shifting the center of gravity backward. The muscles in the back of the legs (such as the hip extensors, knee flexors, and ankle plantar flexors) are activated alternately, with the forefoot landing first to propel the body backward. Setting a forward walking training mode effectively exercises the muscles in the front of the legs, while a backward walking training mode exercises the muscles in the back of the legs. For patients with unilateral movement disorders, where one leg is less mobile, a differential speed training mode can keep the running belt speed on the less mobile side lower, making training easier for these patients. By setting multiple training modes, more comprehensive rehabilitation training for the user's lower limbs can be provided.

[0062] In one embodiment, the training mode includes a single-limb training mode, in which one of the two motors is controlled to run while the other stops running.

[0063] For hemiplegic patients, whose body cannot move on one side, a single-limb training mode can be set up to enable these patients to carry out lower limb rehabilitation training.

[0064] Example of a weight-loss gait rehabilitation platform:

[0065] To implement the fall prevention training method based on a weight-reducing gait rehabilitation platform as described in the above embodiments, this invention also provides a weight-reducing gait rehabilitation platform. For example... Figure 2 As shown, the weight-reducing gait rehabilitation platform includes a frame, a left running belt and a right running belt located on the frame and arranged parallel to each other and adjacent to each other, a left motor and a right motor for driving the rotation of the two running belts respectively, and a control circuit for controlling the left motor and the right motor. The control circuit is used to execute the fall prevention training method based on the weight-reducing gait rehabilitation platform of the present invention.

[0066] like Figure 3 As shown, in one embodiment, the control circuit includes a control chip, a first distance sensor for detecting the distance between the human body and the front end of the treadmill belt, and a second distance sensor for detecting the distance between the human body and the rear end of the treadmill belt. The control chip is connected to the first distance sensor and the second distance sensor, and is connected to the left motor and the right motor for control.

[0067] In one embodiment, the control circuit further includes a third distance sensor for detecting the distance between the user's left foot and the rear end of the left treadmill belt, and a fourth distance sensor for detecting the distance between the user's right foot and the rear end of the right treadmill belt, the control chip being connected to the third and fourth distance sensors.

[0068] The first, second, third, and fourth distance sensors can all be installed on the frame of the weight-loss gait rehabilitation platform.

[0069] In this instruction manual, "front" refers to the direction the user faces when exercising on the weight-loss gait rehabilitation platform, and "back" is the opposite direction. "Multiple" or "several" means at least two, such as two, three or more, unless otherwise explicitly specified.

[0070] While this specification has shown and described numerous embodiments of the invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in the practice of this invention.

Claims

1. A fall prevention training method based on a weight-reduction gait rehabilitation platform, characterized in that, The weight-loss gait rehabilitation platform includes a frame, a left running belt and a right running belt arranged parallel to each other and adjacent to each other on the frame, and a left motor and a right motor for driving the rotation of the two running belts, respectively. The method includes: In response to the user's selection of a training mode, the left and right motors are controlled to start running and the training duration is timed. During motor operation, the distance between the human body and the front end of the treadmill belt and the distance between the human body and the rear end of the treadmill belt are detected in real time. In response to the distance between the human body and the front end of the treadmill belt being less than a preset distance or the distance between the human body and the rear end of the treadmill belt being less than a preset distance, the left and right motors are controlled to stop running; in response to the training duration being greater than or equal to the preset training duration, the left and right motors are controlled to stop running. During training, the distance between the user's left foot and the rear end of the left treadmill belt, and the distance between the right foot and the rear end of the right treadmill belt are detected in real time and recorded as the first distance and the second distance, respectively. In response to a first distance being less than a second distance and the difference between the two being greater than a third preset threshold, the speed of the left motor is controlled to decrease by a preset step, and the speed of the right motor is controlled to increase by a preset step; in response to a first distance being greater than a second distance and the difference between the two being greater than a third preset threshold, the speed of the left motor is controlled to increase by a preset step, and the speed of the right motor is controlled to decrease by a preset step. The preset distance is calculated according to the following expression: x1 = 0.5 + v × 1 × 10%; where x1 is the preset distance, v is the average current speed of the two running belts in m / s, and the running belt speed ranges from 0 to 1.2 m / s.

2. The fall prevention training method based on a weight-reduction gait rehabilitation platform as described in claim 1, characterized in that, An image acquisition device for acquiring images of the human body is installed at the front end of the weight-loss gait rehabilitation platform, and the method further includes: In response to the distance between the human body and the two ends of the treadmill being greater than a preset safety range and the distance between the human body and the image acquisition device being less than a first preset threshold, the rotation speeds of the left and right motors are increased by a preset step size, respectively; in response to the distance between the human body and the two ends of the treadmill being greater than a preset safety range and the distance between the human body and the image acquisition device being greater than a second preset threshold, the rotation speeds of the left and right motors are decreased by a preset step size, respectively.

3. The fall prevention training method based on a weight-reduction gait rehabilitation platform as described in claim 1, characterized in that, An image acquisition device for capturing images of the human body is installed at the end of the weight-loss gait rehabilitation platform, and it also includes: If the distance between the human body and both ends of the treadmill belt is greater than a preset safety range and the distance between the human body and the image acquisition device is less than a first preset threshold, then the speeds of the left and right motors are increased. The expression for calculating the increased speeds is as follows: ； If the distance between the human body and both ends of the treadmill belt exceeds a preset safety range and the distance between the human body and the image acquisition device exceeds a second preset threshold, then the speeds of the left and right motors are reduced. The expression for calculating the reduced speeds is as follows: ; Of the above formulas, This indicates the motor speed before adjustment. This indicates the increased rotational speed. This indicates the reduced rotational speed. This represents the first preset threshold. This indicates the second preset threshold. This indicates the distance between the head and tail of the weight-loss gait rehabilitation platform. This indicates the standard value for the speed adjustment step size. This indicates the distance between the human body and the image acquisition device.

4. The fall prevention training method based on a weight-reduction gait rehabilitation platform as described in any one of claims 1 to 3, characterized in that, The training modes include a forward-moving training mode, a backward-moving training mode, and a differential training mode. In the forward-moving training mode, the left motor and the right motor have the same rotation speed and the rotation shafts rotate in the first direction. In the backward-moving training mode, the left motor and the right motor have the same rotation speed and the rotation shafts rotate in the opposite direction to the first direction. In the differential training mode, the left and right motors rotate at different speeds, but the shafts rotate in the same direction.

5. The fall prevention training method based on a weight-reduction gait rehabilitation platform as described in claim 1, characterized in that, The training modes include a single-limb training mode, in which one of the two motors is controlled to run while the other stops running.

6. A weight-loss gait rehabilitation platform, characterized in that, The device includes a frame, a left running belt and a right running belt located on the frame and arranged parallel to each other and adjacent to each other, a left motor and a right motor for driving the rotation of the two running belts, and a control circuit for controlling the left motor and the right motor. The control circuit is used to execute the fall prevention training method based on the weight-reducing gait rehabilitation platform according to any one of claims 1 to 5.

7. The weight-loss gait rehabilitation platform as described in claim 6, characterized in that, The control circuit includes a control chip, a first distance sensor for detecting the distance between the human body and the front end of the running belt, and a second distance sensor for detecting the distance between the human body and the rear end of the running belt. The control chip is connected to the first distance sensor and the second distance sensor, and is connected to the left motor and the right motor for control.

8. The weight-loss gait rehabilitation platform as described in claim 6 or 7, characterized in that, The control circuit also includes a third distance sensor for detecting the distance between the user's left foot and the rear end of the left treadmill belt, and a fourth distance sensor for detecting the distance between the user's right foot and the rear end of the right treadmill belt. The control chip is connected to the third and fourth distance sensors.

Images