Fine motor skills assessment device and method

Abstract

The application discloses a fine operation ability evaluation device, and belongs to the field of cognitive ability evaluation. A first driver is in transmission connection with a joystick and applies a load in a first direction to the joystick. A first torque sensor monitors the load size in the first direction to display the operation force size of an evaluated person in the first direction. The first driver records the position information of the joystick in the first direction. A second driver is in transmission connection with the joystick to apply a load in a second direction perpendicular to the first direction to the joystick. A second torque sensor monitors the load size in the second direction to display the operation force size of the evaluated person in the second direction. The second driver records the position information of the joystick in the second direction. A controller analyzes the fine operation ability of the evaluated person according to the operation force and the position information in the first direction and the second direction, and the evaluation result is more accurate. The application also relates to a fine operation ability evaluation method using the fine operation ability evaluation device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cognitive ability assessment, and in particular to a fine operation ability assessment device and method. BACKGROUND

[0002] In the process of pilot selection, fine operation ability is the necessary and preferred ability. Fine operation ability refers to the ability of physiological reflex of eye nerve conduction to quickly reflect on action. The eye visual system has many visual functions of reflection and conduction. The information observed from the surrounding environment is input into the brain center, and then the nerve muscle and skeletal movement system is driven and reflected on the fine action of hands or feet. As a typical feature of primates, humans can make rapid and accurate movements with extremely dexterous hands. Of course, many dexterous movements depend on visual information of target attributes such as position, size and direction, and somatosensory information of the position of the arm, eye and head at any given moment.

[0003] The existing fine operation ability assessment device is mostly single degree of freedom, and the load change in the flight process is not considered in the assessment, resulting in inaccurate assessment results. SUMMARY

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the present application is to provide a fine operation ability assessment device with multiple degrees of freedom and considering the load change in the flight process in the assessment process.

[0005] In order to overcome the deficiencies of the prior art, the second purpose of the present application is to provide a fine operation ability assessment method with multiple degrees of freedom and considering the load change in the flight process in the assessment process.

[0006] One of the purposes of the present application is achieved by adopting the following technical solutions:

[0007] A fine operation ability evaluation device, comprising a display device, which displays evaluation instructions and the operation of an evaluated person, a hand evaluation device, which comprises a joystick, a first variable load applying device and a second variable load applying device, and a controller, wherein the first variable load applying device comprises a first driver and a first torque sensor, the first driver is in driving connection with the joystick and applies a first direction load to the joystick, the first torque sensor monitors the first direction load to display the first direction operation force of the evaluated person, and the first driver records the position information of the joystick in the first direction; the second variable load applying device comprises a second driver and a second torque sensor, the second driver is in driving connection with the joystick to apply a second direction load perpendicular to the first direction to the joystick, the second torque sensor monitors the second direction load to display the second direction operation force of the evaluated person, and the second driver records the position information of the joystick in the second direction; and the controller analyzes the fine operation ability of the evaluated person according to the first direction operation force, the first direction position information, the second direction operation force and the second direction position information.

[0008] Further, the fine operation ability evaluation device further comprises a foot evaluation device, which comprises a third driver, a foot rudder and a third torque sensor, the third driver is in driving connection with the foot rudder and applies a third direction load to the foot rudder, the third direction is perpendicular to the first direction and the second direction, the third torque sensor monitors the third direction load to display the third direction operation force of the evaluated person, the third driver records the position information of the foot rudder in the third direction, and the controller analyzes the fine operation ability of the evaluated person according to the third direction operation force and the third direction position information.

[0009] Further, the fine operation ability evaluation device further comprises a base and a seat, the seat, the hand evaluation device and the foot evaluation device are fixed to the base, and the hand evaluation device is located between the seat and the foot evaluation device.

[0010] Further, the first direction load generated by the first driver and the second direction load generated by the second driver can be changed in real time according to the preset value of the controller.

[0011] Further, the joystick comprises a rod body and a sleeve, the rod body is fixed to the sleeve, the first variable load applying device further comprises a first support, the first support comprises a first main body and a first mounting shaft mounted to the first main body, and the first mounting shaft is connected with the sleeve.

[0012] Further, the second variable load applying device further comprises a second support, the second support comprising a second main body and a second mounting shaft mounted on the second main body, the second mounting shaft being connected with the rod body.

[0013] Further, the second mounting shaft is perpendicular to the first mounting shaft.

[0014] The second object of the present application is achieved by the following technical scheme:

[0015] A fine operation ability evaluation method implemented by the fine operation ability evaluation device, comprising the following steps:

[0016] Presetting the load and distance: presetting the moving distance and load change in the first direction and the second direction by the controller during evaluation;

[0017] Hand holding experiment: the evaluator holds the joystick with his hand, operates the joystick according to the indication of the display, makes the icon representing the operation of the evaluator on the display located at the indicated position, and keeps for a period of time, and the controller analyzes the stability of the fine operation of the hand of the evaluator according to the operation force in the first direction, the position information in the first direction, the operation force in the second direction, and the position information in the second direction;

[0018] Hand reciprocating experiment: the evaluator holds the joystick with his hand, operates the joystick according to the indication of the display and the frequency of the metronome, makes the icon representing the operation of the evaluator on the display reciprocate between at least two indicated positions, and the controller analyzes the accuracy of the fine operation of the hand of the evaluator according to the operation force in the first direction, the position information in the first direction, the operation force in the second direction, and the position information in the second direction.

[0019] Further, it further comprises a foot holding experiment, specifically: the evaluator steps on the foot rudder with his foot, operates the foot rudder according to the indication of the display, makes the icon representing the operation of the evaluator on the display located at the indicated position, and keeps for a period of time, and the controller analyzes the stability of the fine operation of the foot of the evaluator according to the operation force in the third direction and the position information in the third direction.

[0020] Further, it further comprises a foot reciprocating experiment, specifically: the evaluator steps on the foot rudder with his foot, operates the foot rudder according to the indication of the display, makes the icon representing the operation of the evaluator on the display reciprocate between at least two indicated positions, and the controller analyzes the accuracy of the fine operation of the foot of the evaluator according to the operation force in the third direction and the position information in the third direction.

[0021] Compared with the prior art, the fine operation ability evaluation device can apply loads of two different degrees of freedom through the first variable load applying device and the second variable load applying device, and the loads can change in real time to simulate load changes in the flight process; the operation force size and position information on different degrees of freedom are obtained through the torque sensor and the driver, and the fine operation ability of the evaluated person is analyzed according to the operation force size and position information, and the evaluation result is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of the fine operation ability evaluation device of the application;

[0023] Figure 2 It is a perspective view of the hand evaluation device of the fine operation ability evaluation device; Figure 1

[0024] Figure 3 It is a schematic view of the internal structure of the hand evaluation device; Figure 2

[0025] Figure 4 It is a schematic view of the local structure of the hand evaluation device; Figure 2

[0026] Figure 5 It is a perspective view of the foot evaluation device of the fine operation ability evaluation device; Figure 1

[0027] Figure 6 It is a schematic view of the use of the fine operation ability evaluation device. Figure 1 In the figure: 10, base; 20, seat; 30, hand evaluation device; 31, shell; 32, joystick; 320, rod body; 321, sleeve; 33, first variable load applying device; 330, first driver; 331, first transmission assembly; 332, first bearing; 333, first belt; 334, second bearing; 335, first torque sensor; 336, first support; 337, first main body; 338, first mounting shaft; 34, second variable load applying device; 340, second driver; 341, second transmission assembly; 342, third bearing; 343, second belt; 344, fourth bearing; 345, second torque sensor; 346, second support; 347, second main body; 348, second mounting shaft; 40, foot evaluation device; 41, fixed plate; 42, third driver; 43, third transmission assembly; 44, rotating shaft; 45, foot rudder; 200, evaluated person.

[0028] DETAILED DESCRIPTION

[0029] ​​​​​The technical solutions in the embodiments of the present application will be clearly and completely described in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0030] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or can be fixed thereto via an intervening component. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or can be connected thereto via an intervening component. When a component is referred to as being "disposed" on another component, it can be directly on the other component or can be disposed thereon via an intervening component. The terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0032] Figures 1 to 6 The fine operation ability evaluation device is used for evaluating the fine operation ability of a person. Specifically, the fine operation ability includes the hand fine operation ability and the foot fine operation ability. The fine operation ability evaluation device includes a display device, a base 10, a seat 20, a hand evaluation device 30, a foot evaluation device 40, and a controller.

[0033] The display device is used for displaying the evaluation indication and the operation of the evaluated person. Specifically, in the present embodiment, the evaluation indication is displayed as a plurality of hollow circles with black frames, and the operation of the evaluated person is displayed as a blue solid circle.

[0034] The seat 20 is fixed to the base 10, and the seat 20 is used for the evaluated person 200 to sit down when testing, so that the hands and feet of the evaluated person 200 can be evaluated separately or simultaneously.

[0035] The hand evaluation device 30 is fixedly installed on the base 10, and the hand evaluation device 30 is used for evaluating the hand fine operation ability of the evaluated person 200.

[0036] The hand evaluation device 30 comprises a housing 31, a lever 32, a first variable load applying device 33, and a second variable load applying device 34. The housing 31 is fixed to the base 10. The lever 32 is received in the housing 31 at one end and extends out of the housing 31 at the other end. The first variable load applying device 33 and the second variable load applying device 34 are mounted to the housing 31 and are in driving connection with the lever 32 to drive the end of the lever 32 to move in a first direction and a second direction perpendicular to the first direction, respectively.

[0037] Specifically, the lever 32 comprises a lever body 320 and a sleeve 321, and the lever body 320 is sleeved to the sleeve 321 at one end. The end of the lever body 320 away from the sleeve 321 is a gripping portion for the person to be evaluated 200 to grip. The end of the lever body 320 close to the sleeve 321 is connected with the second variable load applying device 34, so that the power of the second variable load applying device 34 is transmitted to the lever body 320. The end of the sleeve 321 away from the lever body 320 is connected with the first variable load applying device 33, so that the power of the first variable load applying device 33 is transmitted to the sleeve 321, thereby driving the gripping portion of the lever body 320 to move.

[0038] The first variable load applying device 33 comprises a first driver 330, a first transmission assembly 331, a first torque sensor 335, and a first bracket 336. The first driver 330 is fixed to the housing 31 and provides power. In the embodiment, the first driver 330 is preferably an electric motor. The first transmission assembly 331 comprises a first bearing 332, a first belt 333, and a second bearing 334. The first bearing 332 and the second bearing 334 are respectively rotatably mounted to the housing 31. The first bearing 332 is in driving connection with the output end of the first driver 330, and the first belt 333 is sleeved between the first bearing 332 and the second bearing 334. The first bearing 332 drives the second bearing 334 to rotate through the first belt 333. The first torque sensor 335 is mounted to one side of the second bearing 334, and detects the torque output by the first driver 330 and transmits the real-time torque value to the controller. The torque output by the first driver 330 is equal to the torque applied by the person to be evaluated 200 in the first direction, and the first torque sensor 335 indirectly measures the torque applied by the hand of the person to be evaluated 200 in the first direction. The first bracket 336 comprises a first main body 337 and a first mounting shaft 338. The first main body 337 is in driving connection with the second bearing 334, and the second bearing 334 drives the first main body 337 to rotate. The first mounting shaft 338 is fixedly mounted to the first main body 337 at both ends, and is fixedly connected with the sleeve 321. The torque output by the first driver 330 can be changed, so that the load in the first direction can be adjusted.

[0039] The second variable load applying device 34 comprises a second driver 340, a second transmission assembly 341, a second torque sensor 345, and a second bracket 346. The second driver 340 is fixed to the housing 31 and provides power. In the embodiment, the second driver 340 is preferably an electric motor. The second transmission assembly 341 comprises a third bearing 342, a second belt 343, and a fourth bearing 344. The third bearing 342 and the fourth bearing 344 are rotatably installed to the housing 31, respectively. The third bearing 342 is in transmission connection with an output end of the second driver 340, and the second belt 343 is sleeved between the third bearing 342 and the fourth bearing 344. The third bearing 342 drives the fourth bearing 344 to rotate through the second belt 343. The second torque sensor 345 is installed to one side of the fourth bearing 344. The second torque sensor 345 detects the torque output by the second driver 340 and transmits the real-time torque value to the controller. The torque output by the second driver 340 is equal to the torque applied by the person being evaluated 200 in the second direction, and the second torque sensor 345 indirectly measures the torque applied by the person being evaluated 200 in the second direction. The second bracket 346 comprises a second main body 347 and a second mounting shaft 348. The second main body 347 is in transmission connection with the fourth bearing 344, and the fourth bearing 344 drives the second main body 347 to rotate in the second direction. The second mounting shaft 348 is fixed to the second main body 347 at both ends, and the second mounting shaft 348 is fixed with the rod body 320. The torque output by the second driver 340 can be changed, so that the load in the second direction can be adjusted.

[0040] The foot evaluation device 40 comprises a fixed plate 41, a third driver 42, a third transmission assembly 43, a first torque sensor, a rotating shaft 44, and two foot rudders 45. The fixed plate 41 is fixed to the base 10, and the third driver 42 is fixed to the fixed plate 41. In the embodiment, the third driver 42 is preferably an electric motor. The third driver 42 drives the rotating shaft 44 to rotate through the third transmission assembly 43. The two foot rudders 45 are installed to both ends of the rotating shaft 44, respectively. The third torque sensor is installed to the third transmission assembly 43 and monitors the output torque of the third driver 42 in real time, and transmits the real-time torque value to the controller. The output torque of the third driver 42 is equal to the torque applied by the person being evaluated 200, and the third torque sensor indirectly measures the torque applied by the person being evaluated 200.

[0041] When the fine operation ability evaluation device is used, the person to be evaluated 200 sits on the seat 20, holds the joystick 32 with hands, and places feet on the foot rudder 45. The movement distance and load change of the first direction, the second direction, and the third direction during evaluation are preset by the controller. The movement distance of the first direction, the second direction, and the third direction is displayed in the form of a hollow circle on the display device. The person to be evaluated 200 observes the pattern displayed on the display device and starts the test. During the test, the experiment is divided into holding experiments and reciprocating experiments in the X direction, the Y direction, and the Z direction. The holding experiment requires the person to be evaluated 200 to hold the center of the black circle from left to right in turn according to the indication, and the holding time is 10 s; the reciprocating experiment requires the person to be evaluated 200 to control the blue ball to reciprocate in the two black circles according to the frequency (1 Hz, 1.5 Hz, 2 Hz) of the metronome. The two experiments can set parameters: motor torque size, set target position and size, metronome frequency.

[0042] The controller analyzes the fine operation ability of the hands of the person to be evaluated 200 according to the operation force of the first direction, the position information of the first direction, the operation force of the second direction, and the position information of the second direction. The controller analyzes the fine operation ability of the feet of the person to be evaluated 200 according to the operation force of the third direction and the position information of the third direction.

[0043] The application also relates to a fine operation ability evaluation method implemented by the fine operation ability evaluation device.

[0044] Presetting load and distance: presetting the movement distance and load change of the first direction and the second direction during evaluation by the controller;

[0045] Hand holding experiment: the person to be evaluated holds the joystick 32 with hands, operates the joystick 32 according to the indication of the display, makes the icon representing the operation of the person to be evaluated on the display located at the indicated position, and keeps for a period of time. The controller analyzes the stability of the fine operation of the hands of the person to be evaluated according to the operation force of the first direction, the position information of the first direction, the operation force of the second direction, and the position information of the second direction.

[0046] Hand reciprocating experiment: the person to be evaluated holds the joystick 32 with hands, operates the joystick 32 according to the indication of the display and the frequency of the metronome, makes the icon representing the operation of the person to be evaluated on the display reciprocate in at least two indicated positions, and the controller analyzes the accuracy of the fine operation of the hands of the person to be evaluated according to the operation force of the first direction, the position information of the first direction, the operation force of the second direction, and the position information of the second direction.

[0047] Further, the foot holding experiment is specifically: the foot of the evaluated person steps on the rudder 45, according to the indication of the display, the rudder 45 is operated, the icon representing the operation of the evaluated person on the display is located in the indicated position, and is kept for a period of time, and the controller analyzes the stability of the fine operation of the foot of the evaluated person according to the operation force of the third direction and the position information of the third direction.

[0048] Further, the foot reciprocating experiment is specifically: the foot of the evaluated person steps on the rudder 45, according to the indication of the display, the rudder 45 is operated, the icon representing the operation of the evaluated person on the display reciprocates in at least two indicated positions, and the controller analyzes the accuracy of the fine operation of the foot of the evaluated person according to the operation force of the third direction and the position information of the third direction.

[0049] Compared with the prior art, the fine operation ability evaluation device can apply loads of two different degrees of freedom through the first variable load applying device 33 and the second variable load applying device 34, and the loads can change in real time, simulating the load change in the flight process; the operation force size and the position information on different degrees of freedom are obtained through the torque sensor and the driver, and the fine operation ability of the evaluated person is analyzed according to the operation force size and the position information, so that the evaluation result is more accurate.

[0050] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are equivalent modifications and evolution of the above embodiments according to the essential technology of the present application, and these all belong to the protection scope of the present application.

Claims

1. A fine motor skills assessment device, comprising a display device that displays assessment instructions and the actions of the person being assessed, characterized in that: It also includes a hand assessment device and a controller. The hand assessment device includes a joystick, a first variable load application device, and a second variable load application device. The joystick is used for hand gripping. The first variable load application device includes a first driver and a first torque sensor. The first driver is kinetically connected to the joystick and applies a load in a first direction to the joystick. The first torque sensor monitors the magnitude of the load in the first direction to display the magnitude of the operating force of the person being assessed in the first direction. The first driver records the position information of the joystick in the first direction. The second variable load application device includes a second driver and a second torque sensor. The second driver is connected to the joystick to apply a load in a second direction perpendicular to the first direction to the joystick. The second torque sensor monitors the magnitude of the load in the second direction to display the magnitude of the operator's force in the second direction. The second driver records the position information of the joystick in the second direction. The controller presets the movement distance and load changes in the first and second directions during the evaluation, and then conducts a hand holding experiment and a hand reciprocating experiment. The controller analyzes the operator's fine motor skills based on the operator's force in the first direction, the position information in the first direction, the operator's force in the second direction, and the position information in the second direction during the experiment.

2. The precision operation capability assessment device according to claim 1, characterized in that: The fine motor skills assessment device also includes a foot assessment device, which includes a third actuator, a foot rudder, and a third torque sensor. The third actuator is connected to the foot rudder and applies a third-direction load to the foot rudder. The third-direction load is perpendicular to the first and second directions. The third torque sensor monitors the magnitude of the third-direction load to display the magnitude of the assessed person's operating force in the third-direction. The third actuator records the position information of the foot rudder in the third-direction. The controller analyzes the assessed person's fine motor skills based on the third-direction operating force and the third-direction position information.

3. The precision operation capability assessment device according to claim 2, characterized in that: The fine motor skills assessment device also includes a base and a seat. The seat, hand assessment device, and foot assessment device are fixed to the base, and the hand assessment device is located between the seat and the foot assessment device.

4. The precision operation capability assessment device according to claim 1, characterized in that: The load in the first direction generated by the first driver and the load in the second direction generated by the second driver can change in real time according to the preset value of the controller.

5. The precision operation capability assessment device according to claim 1, characterized in that: The control lever includes a lever body and a sleeve. The lever body is fixed to the sleeve. The first variable load application device also includes a first bracket. The first bracket includes a first main body and a first mounting shaft mounted on the first main body. The first mounting shaft is connected to the sleeve.

6. The precision operation capability assessment device according to claim 5, characterized in that: The second variable load application device further includes a second bracket, which includes a second body and a second mounting shaft mounted on the second body, the second mounting shaft being connected to the rod.

7. The precision operation capability assessment device according to claim 6, characterized in that: The second mounting shaft is perpendicular to the first mounting shaft.

8. A method for assessing fine operational capabilities using the fine operational capability assessment equipment described in any one of claims 1-7, characterized in that, Includes the following steps: Preset load and distance: The movement distance and load changes in the first and second directions are preset by the controller during the evaluation. Hand holding test: The subject holds the joystick and operates it according to the instructions on the display so that the icon representing the subject's operation on the display is in the indicated position and is held for a period of time. The controller analyzes the stability of the subject's fine hand operation based on the operating force in the first direction, the position information in the first direction, the operating force in the second direction, and the position information in the second direction. Hand reciprocating test: The subject holds the joystick and operates it according to the instructions on the display and the frequency of the metronome, so that the icon representing the subject's operation on the display moves back and forth between at least two indicated positions. The controller analyzes the accuracy of the subject's fine hand operation based on the operating force in the first direction, the position information in the first direction, the operating force in the second direction, and the position information in the second direction.

9. The method for evaluating fine operational capabilities according to claim 8, characterized in that: It also includes a foot holding test, which specifically involves the subject stepping on a foot rudder and operating the rudder according to the instructions on the display, so that the icon representing the subject's operation on the display is in the indicated position and is maintained for a period of time. The controller analyzes the stability of the subject's fine foot operation based on the third-party operating force and the third-party position information.

10. The method for evaluating fine operational capabilities according to claim 8, characterized in that: It also includes a foot reciprocating test, which specifically involves the subject stepping on a foot rudder and operating the rudder according to the instructions on the display, causing the icon representing the subject's operation on the display to reciprocate at at least two indicated positions. The controller analyzes the accuracy of the subject's fine foot operation based on the third-party operating force and the third-party position information.

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