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Brain alertness monitoring and alarming method

A technology of brain and EEG signals, applied in the field of monitoring and alarming of brain alertness, can solve problems such as less pulse waves, decreased amplitude of main pulse waves, and insignificant changes in main wave peak latency

Inactive Publication Date: 2019-01-04
中国人民解放军第三0五医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that when the degree of fatigue deepens, the amplitude of the main wave of the pulse wave decreases, while the latency of the peak of the main wave does not change significantly, and there are few studies on the relationship between the pulse wave and alertness

Method used

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  • Brain alertness monitoring and alarming method
  • Brain alertness monitoring and alarming method
  • Brain alertness monitoring and alarming method

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Experimental program
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Embodiment Construction

[0037] The overall technical route of the present invention is to first design a portable multi-channel physiological signal acquisition and recording system, design an alertness detection task similar to the work, and use the designed multi-physiological signal acquisition system to collect and record the physiological signals in the alertness detection task process , combined with the Stanford Sleepiness Scale (SSS) to judge the changes in brain alertness before and after the alertness task experiment, analyze the relationship between various physiological signals and alertness changes, and find the optimal physiological signal that can reflect the changes in brain alertness or a combination of physiological signals.

[0038] like Figure 4 As shown, the method for monitoring and alerting the brain vigilance includes the following steps:

[0039] (1) Acquire EEG signals, ECG signals, pulse wave signals, skin resistance signals, and blood oxygen saturation through the main c...

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Abstract

The invention discloses a brain alertness monitoring and alarming method. The optimal physiological signal or combination of the physiological signals capable of reflecting changes in brain alertnesscan be found. The brain alertness monitoring and alarming method comprises the following steps: (1) collecting EEG signals, ECG signals, pulse wave signals, skin resistance signals and blood oxygen saturation through a master control chip with multi-channels; (2) removing the interference signals by filtering so as to obtain the preprocessed signals; (3) extracting the correlated time domain, frequency domain, wavelet transform and multi-scale entropy characteristics from various pre-processed physiological signals as the objective indicators of alertness detection and then selecting the objective indicators to be combined with the SSS scale to establish the alertness model.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method for monitoring and alarming brain alertness. Background technique [0002] Alertness refers to the level of attention or vigilance a person maintains for an extended period of time while performing a task. The "clock test" as a method to detect a drop in alertness or a model to induce a drop in alertness, especially the psychomotor vigilance task (PVT) is considered the gold standard for studying changes in alertness after sleep deprivation. At present, the experimental tasks for vigilance measurement also tend to be diversified. [0003] In a variety of alertness measurement test tasks, it was found that with the progress of the alertness experimental task, the alertness of the subjects showed a downward trend, and at the same time, the physiological signals of the human body also changed to a certain extent. Therefore, people began to study the relationship b...

Claims

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Application Information

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IPC IPC(8): G16H50/30G06K9/00A61B5/0205A61B5/00
CPCA61B5/0205G16H50/30A61B5/7235G06F2218/08
Inventor 姬军王景华蒋知新高佳硕肖宏
Owner 中国人民解放军第三0五医院