Performance evaluation method, device, terminal and storage medium of prosthetic action classifier

A classifier and action technology, applied in the input/output process of instruments, data processing, user/computer interaction input/output, etc., can solve action inconsistencies, lack of quantifiable real-time evaluation methods, and cannot fully reflect real-time Myoelectric prosthetics control the specific situation and other issues to achieve accurate evaluation results

Active Publication Date: 2021-04-02
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current myoelectric prosthetics on the market can only use offline data analysis to evaluate the classification method and training effect, and lack quantifiable real-time evaluation methods. Therefore, amputees can only use data prediction and subjective observation of the trained myoelectric prosthesis control effect, judging the control situation
Although offline data analysis can provide objective data, it cannot fully reflect the specific situation in real-time myoelectric prosthetic control
In the actual use of myoelectric prostheses, there may be situations where the movements made by the myoelectric prosthesis do not match the intended movements of the amputee, or even completely fail to complete the movements that the amputee wants to complete.
This creates certain surprises and risks for amputees

Method used

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  • Performance evaluation method, device, terminal and storage medium of prosthetic action classifier
  • Performance evaluation method, device, terminal and storage medium of prosthetic action classifier
  • Performance evaluation method, device, terminal and storage medium of prosthetic action classifier

Examples

Experimental program
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Effect test

Embodiment 1

[0029] figure 1 It is a flow chart of a performance evaluation method for a prosthetic action classifier provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation of evaluating the control performance of a prosthetic action classifier in a myoelectric prosthesis. The performance evaluation device of action classifier is carried out, and this device can be realized by software and / or hardware, and generally can be integrated in the terminal such as computer, and this method specifically comprises the following steps:

[0030] Step 110, determining one of the preset test items as the current test item.

[0031] When an amputee first installs a myoelectric prosthesis, in order to adapt the myoelectric prosthesis to the amputee's own muscle characteristics, it is necessary to perform motion training on the prosthetic action classifier in the myoelectric prosthesis. This application is an evaluation of the control performance of a trained pr...

Embodiment 2

[0053] figure 2 It is a flow chart of a performance evaluation method for a prosthetic action classifier provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments, and specifically performs the specific process of obtaining the motion trajectory by testing the current test items. For optimization, the method specifically includes the following steps:

[0054] Step 201, determining one test item among a plurality of preset test items as the current test item.

[0055] Step 202 , display the starting point and test target in the current test item on the coordinate axis, and keep the cursor on the starting point when starting the test, and start timing.

[0056] The prosthetic action classifier is trained from a limited number of actions, so in actual use, there will be situations where the prosthetic action classifier fails to recognize, that is, the intended action of the amputee is misidentified as other a...

Embodiment 3

[0084] Figure 4 It is a schematic structural diagram of a performance evaluation device for a prosthetic action classifier provided in Embodiment 3 of the present invention. This embodiment is applicable to the situation of evaluating the control performance of a prosthetic action classifier in a myoelectric prosthesis. The device can be controlled by a software and / or hardware, and generally can be integrated into a terminal such as a computer. Such as Figure 4 As shown, the performance evaluation device of the prosthetic action classifier described in this embodiment includes: a test item selection module 310 , an action trajectory drawing module 320 , a test value determination module 330 and an evaluation value determination module 340 .

[0085] Wherein, the test item selection module 310 is used to determine that a test item in a plurality of preset test items is the current test item;

[0086] The motion trajectory drawing module 320 is used to display the starting ...

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Abstract

The invention discloses a performance evaluation method, device, terminal and storage medium of a prosthesis action classifier. The method includes: determining a test item among a plurality of preset test items as the current test item; displaying the starting point and test target in the current test item on the coordinate axis, and continuously acquiring the electromyography signal of the subject , identify the myoelectric signal through the prosthetic action classifier to obtain the result action, draw the action track corresponding to the result action from the starting point, and record the test time; according to the action track of the current test item and the test time , determining the test value of the current test item for the test evaluation index; combining the test values ​​of the multiple test items for the test evaluation index to obtain the evaluation value of the prosthetic movement classifier for the overall evaluation index. The invention realizes the real-time evaluation of the performance of the prosthesis action classifier, and obtains quantified evaluation results, which are relatively accurate.

Description

technical field [0001] Embodiments of the present invention relate to prosthetic limb control technology, and in particular to a performance evaluation method, device, terminal and storage medium of a prosthetic limb motion classifier. Background technique [0002] According to the 2006 sample survey data of my country's disabled population by the National Bureau of Statistics, among all kinds of disabled people in the country, the physically disabled population is the largest, accounting for 24.12 million people, accounting for 29.07% of the total disabled population. Due to accidents, birth defects, diseases, natural disasters and other reasons, the number of people with physical disabilities is still increasing. In the Sichuan Wenchuan Earthquake in May 2008 alone, more than 20,000 people lost limbs. These amputees need to wear artificial limbs to assist their daily life and work. According to the control method of the prosthesis, at present, the commercialized artifici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/01G06K9/00
CPCG06F3/015G06V40/20G06F2218/12
Inventor 田岚李向新方鹏李光林
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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