Finger ladder and control method thereof

Abstract

The invention relates to the field of finger steps, in particular to a finger step and a control method thereof. The finger ladder comprises a plurality of inverted-L-shaped ladder bodies capable of ascending and descending independently and further comprises a vertical ascending and descending component below each ladder body, and the free end of each vertical ascending and descending component is fixedly connected with the lower side face of the corresponding ladder body and used for controlling ascending and descending of the corresponding ladder body. And a pressure sensor is arranged between the free end and the lower side surface of the corresponding step. The height of each step of the finger steps can be adjusted according to the finger condition of the user, the fingers of the user can be effectively trained, and the training effect is better.

Description

Technical Field

[0001] The present invention generally relates to the field of finger ladders and more particularly to a finger ladder and a control method thereof. Background Art

[0002] Generally, users with hand dysfunction, such as hemiplegia caused by stroke, can use finger ladders for rehabilitation training. Specifically, users can improve the range of motion of finger joints by placing their fingers on the finger ladders and moving them back and forth, so as to train the flexibility and coordination of active finger movements. However, the height of existing finger ladders is generally fixed, such as Figure 1 As shown, not all users have inflexible five fingers. For example, some users have inflexible thumbs only, while some users have inflexible little fingers and index fingers. Furthermore, the flexibility of each finger is different. Therefore, the finger ladder with a fixed height cannot provide specific training for the different impairments of the user's five fingers, resulting in poor rehabilitation results, long rehabilitation training time, and other problems. Summary of the invention

[0003] In order to solve the technical problem of poor training effect caused by the fixed height of the finger steps, the present invention provides solutions in the following aspects.

[0004] In a first aspect, the present invention provides a finger ladder, comprising: a plurality of independently lifting inverted L-shaped steps, and a vertical lifting component under each step, wherein the free end of the vertical lifting component is fixedly connected to the lower side surface of its corresponding step for controlling the lifting and lowering of the corresponding step, and a pressure sensor is arranged between the free end and the lower side surface of the corresponding step.

[0005] Furthermore, the vertical lifting component is a hydraulic rod.

[0006] In a second aspect, the present invention provides a control method based on the finger ladder described in the first aspect, comprising:

[0007] Collect the pressure of the target finger placed on the target step;

[0008] When the pressure is less than a pressure threshold, the target step is raised until the pressure is greater than the pressure threshold; the pressure threshold is a pressure value when the user feels pain when pressing the target finger on the step.

[0009] Further, when the pressure value is less than the pressure threshold, the target step is increased until the pressure value is greater than the pressure threshold, including:

[0010] At every preset time, it is determined whether the pressure is greater than the pressure threshold, if so, the height of the target step is kept unchanged, if not, the target step is increased.

[0011] Further, ascending the target step includes: the ascending height is proportional to the pressure threshold, or the ascending height is a fixed preset elevation value.

[0012] Furthermore, the preset elevation value is 10 mm.

[0013] Furthermore, it also includes:

[0014] Collecting the pressure threshold and pressing time of the target finger pressing on the step;

[0015] The pressure threshold is modified according to the pressing time.

[0016] Further, the pressure threshold is modified according to the pressing time, including:

[0017] When the pressing time is greater than the first time, the pressure threshold becomes the original first percentage;

[0018] When the pressing time is less than the second time, the pressure threshold becomes a second percentage of the original value; wherein, the first time is greater than or equal to the second time, and the first percentage is greater than the second percentage.

[0019] Furthermore, it also includes:

[0020] Collecting a pressure threshold of the target finger pressing on the step and a time interval for the target finger to be placed from one step to another target step;

[0021] The pressure threshold is modified according to the time interval.

[0022] The beneficial effect of the present invention is that the finger ladder of the present invention can adjust the height of each ladder according to the finger obstacle of the user, so that the user's fingers can be effectively trained with better effect, thereby improving the efficiency of the user's finger rehabilitation training. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0024] Figure 1 is a diagram schematically showing the structure of a conventional finger ladder;

[0025] Figure 2 is a schematic diagram schematically showing the structure of a finger ladder according to an embodiment of the present invention;

[0026] Figure 3 is a flow chart schematically illustrating a method for controlling a finger ladder according to an embodiment of the present invention;

[0027] Figure 2 In the figure, 1-inverted L-shaped ladder; 2-vertical lifting part. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] Figure 2 Schematic diagram of the structure of a finger ladder according to an embodiment of the present invention.

[0031] In a first aspect, the present invention provides a finger ladder, such as Figure 2 As shown, the finger ladder includes a plurality of inverted L-shaped steps 1, a vertical lifting component 2 and a pressure sensor (not shown in the figure).

[0032] Specifically, each step 1 is separate and can be independently lifted and lowered. A vertical lifting component 2 is provided under each step 1. Specifically, the free end of the vertical lifting component 2 is fixedly connected to the lower side of its corresponding step for controlling the lifting of the corresponding step. A pressure sensor is provided between the free end of the vertical lifting component 2 and the lower side of its corresponding step. The pressure sensor is used to collect the pressure of the user's finger pressing on the step.

[0033] In this embodiment, the vertical lifting component is a hydraulic rod. In other optional embodiments, those skilled in the art can make a selection according to actual needs. For example, the vertical lifting component can be an electric push rod.

[0034] In one embodiment, the finger ladder further includes a controller for controlling the lifting of the hydraulic rod and receiving data from the pressure sensor. Furthermore, the controller can display the received data through a host computer.

[0035] Figure 3 is a flow chart schematically illustrating a method for controlling a finger ladder according to an embodiment of the present invention.

[0036] In a second aspect, the present invention provides a control method based on the finger ladder described in the first aspect, such as Figure 3 As shown, the control method includes:

[0037] S101 , collecting the pressure threshold of the user's target finger.

[0038] It is understandable that the target finger is the finger that needs to be trained. Specifically, the method of collecting the pressure threshold of the target finger includes: the user places the target finger on any step and then presses hard. When the user feels pain, the user stops pressing. At this time, the pressure value collected by the pressure sensor corresponding to the step is the pressure threshold. It is understandable that the pressure threshold is the maximum pressure value during the user's pressing process.

[0039] In one embodiment, since the health status of each user's fingers is different, and even on the same hand, each finger has certain differences, the collected pressure threshold can also be corrected. Specifically, the pressing time of the user's target finger at the pressure threshold can be collected, and the pressure threshold of the target finger can be corrected according to the pressing time. Specifically, when the pressing time of the target finger is greater than the first time, it indicates that the target finger has a long pain perception time, that is, the health status of the finger is better and it is not easy to get tired, then the pressure threshold is changed to the original first percentage; when the pressing time of the target finger is less than the second time, it indicates that the user's target finger has a short pain perception time, that is, the finger is more sensitive and easy to get tired, then the pressure threshold is changed to the original second percentage; wherein, the first time is greater than or equal to the second time, and the first percentage is greater than the second percentage.

[0040] In this embodiment, the first time can be set to 4s, the second time can be set to 2s, the first percentage can be set to 102%, and the second percentage can be set to 98%. It is understandable that no correction is required within the first time and the second time. In other optional embodiments, those skilled in the art can select the first time, the second time, the first percentage and the second percentage according to actual needs. For example, the first time can be set to 5s, the second time can be set to 3s, the first percentage can be set to 101%, and the second percentage can be set to the original 99%. In addition, a coefficient can also be set to establish the relationship between the pressure threshold and the pressing time.

[0041] In another embodiment, since the flexibility of each finger is different, the time interval from when the target finger is placed on one step to when it is placed on another step can also be collected, and then the pressure threshold of the target finger can be corrected according to the time interval. Specifically, the user places the target finger and other fingers on the same step, and then only moves the target finger from the step to another step. If the time it takes for the target finger to move from the step to another step is too long, it indicates that the flexibility of the target finger is poor and it may be prone to fatigue during training. Therefore, the pressure threshold should be appropriately lowered, for example, to 98% of the original value, so that the user can train safely and effectively within the scope of his or her ability; if the time it takes for the target finger to move from the step to another step is short, it indicates that the flexibility of the target finger is good and the condition of the finger is relatively good. The pressure threshold should be appropriately increased, for example, to 102% of the original value. By appropriately increasing its acceptable difficulty, the target finger can be effectively trained, so that the finger can obtain better training difficulty.

[0042] By correcting the pressure threshold of the target finger, the accuracy of the pressure threshold is improved, so that the user can get more effective training, thereby improving the effect of the training.

[0043] S102: collecting the pressure of a target finger placed on a target step, and controlling the height of the step according to a magnitude relationship between the pressure of the target finger and a pressure threshold.

[0044] It can be understood that the target ladder is the ladder at which the target finger needs to be trained.

[0045] Specifically, when determining the step height, the user only places the target finger on the target step. At this time, when the pressure collected by the sensor on the target step (i.e., the pressure of the target finger) is less than the pressure threshold of the target finger, the target step is raised until the pressure of the target finger is greater than the pressure threshold of the target finger.

[0046] In one embodiment, it is possible to determine whether the pressure of the target finger is greater than the pressure threshold of the target finger at every preset time. If so, the height of the target step is kept unchanged, that is, the height of the step is the height of the target finger that needs to be trained; if not, the target step is raised, wherein the height of the target step is proportional to the pressure threshold, or the height of the target step is a fixed preset increase value. In this embodiment, the preset increase value can be 10mm, and the preset time can be 50ms. It can be understood that every 50ms, it is determined whether the pressure of the target finger is greater than the pressure threshold of the target finger. If not, the target step is raised, indicating that the target step is raised by 10mm in 50ms. By raising the step within a period of time, the user is given time to adapt, avoiding the harm caused to the user by the rapid rise of the step, and improving the safety of the user in training.

[0047] For example, when a user needs to train his index finger, first, he can put all his fingers under the stairs, keep the other fingers still, and then put his index finger on the first step to determine whether the pressure of the user's index finger (i.e., the pressure collected by the pressure sensor of the first step) is greater than the pressure threshold of the index finger. If so, the step will not be raised. If not, the first step will be raised by 10mm in 50ms, and then the above judgment process will be repeated until the first step is no longer raised. The height of the stairs for other fingers that need to be trained is also determined according to the above process. For example, if the user also trains the middle finger, after determining the height of the first step, the middle finger can be placed on the second step to determine whether the pressure of the user's middle finger (i.e., the pressure collected by the pressure sensor of the second step) is greater than the pressure threshold of the middle finger. If so, the step will not be raised. If not, the first step will be raised by 10mm in 50ms, and then the above judgment process will be repeated until the second step is no longer raised. It can be understood that during the process of the stairs rising, the height positions of the other fingers remain unchanged, and only the height of the target finger changes.

[0048] It is understandable that if two fingers are to be trained simultaneously, for example, two fingers press the same step, then the corresponding pressure threshold is the sum of the pressure thresholds corresponding to the two fingers respectively.

[0049] In other optional embodiments, if the increase value is preset according to different set values ​​of the pressure threshold of each finger, the preset increase value of the user's target finger can also be obtained through historical data, wherein the historical data includes the pressure threshold and the preset increase value corresponding to each finger. Specifically, if the user wants to train the index finger, the pressure threshold corresponding to the index finger in the historical data is matched, the pressure threshold closest to the user's pressure threshold in the historical data is determined, and the preset increase value corresponding to the pressure threshold is used as the preset increase value of the user's index finger.

[0050] By determining the rising height of the steps according to different pressure thresholds, the height of each step in the finger ladder can be determined more quickly, thereby improving the efficiency of training. In addition, by determining the height of each step according to the user's hand condition, the user's fingers can be effectively trained, thereby improving the efficiency of the user's rehabilitation training.

[0051] Furthermore, the display screen can also display the user's pressing force and the position of the pressing steps in real time during each training session. Through these data, the user's training status can be intuitively displayed, and subsequent finger rehabilitation training can be adjusted accordingly based on these historical records to improve the efficiency of the user's finger training.

[0052] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] In addition, the meaning of "plurality" is at least two, such as two, three or more, etc. Unless otherwise clearly and specifically defined, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0054] Although this specification has shown and described a number of embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will conceive of many modifications, changes and alternatives without departing from the ideas and spirit of the present invention. It should be understood that in the practice of the present invention, various alternatives to the embodiments of the present invention described herein may be employed.

Claims

1. A finger ladder, comprising: A plurality of independently lifting inverted L-shaped stairs are characterized in that they also include a vertical lifting component under each step, wherein the free end of the vertical lifting component is fixedly connected to the lower side surface of the corresponding step and is used to control the lifting of the corresponding step, and a pressure sensor is arranged between the free end and the lower side surface of the corresponding step.

2. The finger ladder according to claim 1, characterized in that: The vertical lifting component is a hydraulic rod.

3. A control method based on the finger ladder according to claim 1 or 2, characterized in that: include: Collect the pressure of the target finger placed on the target step; When the pressure is less than a pressure threshold, the target step is raised until the pressure is greater than the pressure threshold; the pressure threshold is a pressure value when the user feels pain when pressing the target finger on the step.

4. The control method of the finger ladder according to claim 3, characterized in that: When the pressure value is less than the pressure threshold, the target step is raised until the pressure value is greater than the pressure threshold, including: judging whether the pressure is greater than the pressure threshold at preset time intervals, if so, keeping the height of the target step unchanged, if not, raising the target step.

5. The control method of the finger ladder according to claim 4, characterized in that: The target step is increased, including: the increased height is proportional to the pressure threshold, or the increased height is a fixed preset increase value.

6. The control method of the finger ladder according to claim 5, characterized in that: The preset height increase value is 10 mm.

7. The control method of the finger ladder according to claim 3, characterized in that: Also includes: Collecting the pressure threshold and pressing time of the target finger pressing on the step; The pressure threshold is modified according to the pressing time.

8. The control method of the finger ladder according to claim 7, characterized in that: The pressure threshold is modified according to the pressing time, including: When the pressing time is greater than the first time, the pressure threshold becomes the original first percentage; When the pressing time is less than the second time, the pressure threshold becomes a second percentage of the original value; wherein, the first time is greater than or equal to the second time, and the first percentage is greater than the second percentage.

9. The control method of the finger ladder according to claim 3, characterized in that: Also includes: Collecting a pressure threshold of the target finger pressing on the step and a time interval for the target finger to be placed from one step to another target step; The pressure threshold is modified according to the time interval.

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