Detection method based on electroencephalogram signal crew concentration degree detection system
A technology of EEG signal and detection system, which is applied in diagnostic recording/measurement, medical science, psychological devices, etc., and can solve problems such as accidents, crew inattention, and heavy workload.
Inactive Publication Date: 2021-02-09
WUHAN UNIV OF TECH
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Problems solved by technology
In ship driving, a driving often lasts for several hours, and the crew's inattention may lead to accidents
In addition, human attention is also limited by the amount of information processed by the brain. During the driving process of the ship, it is necessary to monitor multiple monitors and instrument panels, and observe the surrounding navigation environment. mission, it becomes less sensitive to security alerts and hazards
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[0108] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0109] figure 1 It is a system structure diagram of a specific embodiment of the present invention. The crew concentration detection system based on EEG signals includes:
[0110] EEG acquisition module, first bluetooth module, second bluetooth module, microprocessor, display module, voice module;
[0111] The EEG acquisition module is connected to the first Bluetooth module by wire;
[0112] The first bluetooth module is wirelessly connected ...
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The invention provides a detection method based on an electroencephalogram signal crew concentration degree detection system. The detection method comprises the following steps: acquiring an electroencephalogram signal data set for offline training and online detection by an electroencephalogram acquisition module; preprocessing the electroencephalogram signal data set in a microprocessor to obtain a preprocessed electroencephalogram data set; performing wavelet packet decomposition on the preprocessed electroencephalogram data set in the microprocessor to obtain an electroencephalogram signalcharacteristic quantity data set after wavelet packet decomposition; by using an offline training data set, performing offline training on the parameters of a hidden Markov model through a Baum-Welchalgorithm to obtain the parameters of the hidden Markov model; acquiring an online application data set as a model input quantity by using an electroencephalogram acquisition device, and performing calculating through a Viterbi algorithm in combination with hidden Markov model parameters to obtain a crew concentration degree detection result; and enabling the microprocessor to control a display module and a voice module to perform early warning according to the concentration degree state result. According to the invention, the crew concentration degree can be accurately detected in real time.
Description
technical field [0001] The invention belongs to the field of maritime safety, and in particular relates to a detection method of a detection system based on electroencephalogram signals for crew concentration. Background technique [0002] With the continuous improvement of ship system reliability, the proportion of accidents caused by technical failures has dropped significantly, while the proportion of accidents caused by human factors has continued to rise. Further studies have shown that: 75% to 96% of water traffic accidents (or Some) are directly or indirectly related to human factors. 84% to 88% of oil tanker accidents, 79% of tugboat grounding accidents, 89% to 96% of collision accidents, and 75% of fire and explosion accidents are directly or indirectly caused by human factors. brought about by factors. [0003] From the human errors in the accidents of the Titanic and the Pioneer of Free Enterprise, it can be seen that the attention of the crew in their working co...
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IPC IPC(8): A61B5/18A61B5/16A61B5/372A61B5/00
CPCA61B5/18A61B5/168A61B5/7235A61B5/7239A61B5/7253A61B5/726A61B5/7267
Inventor 杨柳万志远刘清涂延芳陈俊华何萌杨锬
Owner WUHAN UNIV OF TECH