Marking system for accurate acquisition of brain signals in upper limb movement state in near-infrared spectrum

Abstract

The invention relates to a marking system for accurate acquisition of brain signals of an upper limb movement state in near infrared spectrum, and belongs to the field of brain movement intention identification. the marking system is combined with the near-infrared spectroscopy brain signal acquisition device, the accurate time start-stop calibration is carried out on the brain signals generated by the push, pull, lift and release of the upper limbs in the spontaneous state, so as to realize the accurate and rapid signal marking, and further improve the accuracy of the identification of the intention of the upper limbs movement state based on the near-infrared spectroscopy. The invention can accurately record the brain signals of a subject in a natural motion state, which ensures the spontaneity of the subjects when they perform the four motor paradigms, The punctuation can accurately reflect the start-stop time of the four movements, which provides an important analysis basis for theidentification of upper limb movement intention based on near infrared spectroscopy, and has an important significance for accelerating the application of near infrared spectroscopy in wearable equipment.

Description

technical field [0001] The invention relates to a marking system for accurate collection of brain signals of upper limb movement state in near-infrared spectrum, in particular to a marking system and method for accurate collection of brain signal of upper limb movement state in near-infrared spectrum, which belongs to the recognition of brain movement intention field. Background technique [0002] Since the 1960s, exoskeleton, as a concept of bionics, has been gradually applied to many aspects such as rehabilitation assistance, military assistance, etc., providing a reliable guarantee for improving the quality of life of human beings and enhancing the combat capabilities of soldiers. Most of the existing power-assisted exoskeleton control methods are based on the human-machine coupling method, which has the disadvantage of lagging in response and unable to respond quickly. Obtaining motion signals directly from the human brain through near-infrared spectroscopy equipment, a...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing marking system cannot realize the marking of the brain signal in the state of natural movement, and the recording of the start and end of the movement is inaccurate, and provide an accurate method for the brain signal of the upper limb movement state in the near-infrared spectrum. Collected marking system

The marking system is combined with the near-infrared spectrum brain signal acquisition device to perform accurate time start and stop calibration of the brain signals generated by the four actions of the upper limbs in the spontaneous state, such as pushing, pulling, lifting, and releasing, so as to solve the problem of existing marking systems and The guiding factors of the method can realize accurate and fast signal marking, and then improve the accuracy of upper limb movement state intention recognition based on near-infrared spectroscopy

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