Wireless brainwave acquisition and analysis system

Wireless brainwave acquisition and analysis system

1、 Product Overview

BD-C-1typeWireless brainwave acquisition and analysis systemIt is a portable brainwave acquisition and analysis system developed by Peking University based on advanced technologies from disciplines such as neuroscience, biofeedback, cognitive psychology, education, and neuroscience. It also has auxiliary training, testing, and analysis functions. The system adoptsA portable and reliable brainwave device and professional algorithm, utilizing data analysis and artificial intelligence technology, is an application system for EEG data collection, experimental analysis, and assisted training testing based on biofeedback.

2、 Product principle description

The system uses precision sensors and software systems to achieve the detection of basic brain waves δ, θlow-a,high-a,low-B (SMR）Thehigh-and β,low-γ、mid-The collection and recording of gamma, especially for brainwave alphaSMRWave, highBIntelligent spectrum analysis of key frequency bands such as waves, as well as dynamic quantitative acquisition and measurement methods for concentration and relaxation, can be used to conduct psychological and physiological synchronous measurement experiments and analysis, which can be achieved through Fourier transform（FFT）Conduct effective time-domain, frequency-domain, and time-frequency domain analysis of brain wave signals using analytical methods and algorithms, and conduct statistical analysis and exploratory experimental research. At the same time, portable neural biofeedback experiments can be conducted, and auxiliary regulation and training tests can be conducted on attention level, cognitive ability level, concentration ability, anti-interference ability, thinking ability, and emotional self-regulation ability.

3、 Product Features

1 EEG is a reflection of the activity process of the central nervous system in the brain. The product adopts an internationally advanced portable EEG wireless sensing system with medical accuracy to process and statistically analyze the collected EEG signals.

2 This system is equipped with two methods: collection and testing experiments and self-designed testing experiments, which can collect, analyze, and study multiple indicators of brainwave signals during the process of experiments and testing projects.

3 In cognitive psychology experiments, corresponding research between language processing, attention, memory, consciousness, and EEG signals can be conducted. Conduct measurements and evaluations of individuals' cognitive processes in the brain, analyze their EEG responses in specific experimental environments, and monitor and study the attention, event discrimination ability, perceptual tasks, psychological load, and emotional state of professionals in special industries such as pilots.

4 Network based database management can conduct data research and analysis on individual development and group distribution.

5 Conduct biofeedback experiments and conduct analysis and research on balancing and improving brain wave states, enhancing cognitive abilities such as attention, and neural system balance and coordination through neurofeedback training tests.

6 The product can be used standalone or set up for multi-user use on the network, making it convenient for teachers to conduct experiments, group teaching, data analysis, teaching analysis, scientific research activities, and EEG research on big data and different training projects.

4、 Applicable fields of the product

1 The system is portable, easy to operate, and can be used as a human-machine engineering and human factors engineering tool in universities/Basic experimental teaching equipment for majors such as ergonomics, cognitive psychology, experimental psychology, medicine, physiology, aerospace safety, industrial management and safety, sports, safety ergonomics, artificial intelligence, etc. It can also be used as a convenient and fast experimental tool for teachers and students to carry out innovative experiments and scientific research that combine physiology and psychology.

2 The system can perform testing and analysis functions,Conduct research on cultivating students' learning abilities and habits, alleviating and overcoming negative emotions such as anxiety, tension, impulsiveness, depression, and improving psychological factors,Attention Deficit Hyperactivity Disorder (ADHD)ADHDTraining tests and treatment effect reference analysis will be conducted on patients, anxiety disorders, sleep disorders, substance dependence (drug addiction, alcohol addiction) and other diseases.

3 In the field of sports, studying the harmony of athletes' hearts, brains, and nervous systems through testing and analyzing functions is beneficial for improving athletes' attention, stress management, reaction, and competitive performance.

5、 System composition

The product consists of three parts: a wireless brainwave collector, a signal receiving adapter, and an acquisition and analysis system.

1. Wireless brainwave collector: usingIntegrated single chip EEG sensor TGAM module. A single EEG channel has three contact points: EEG (EEG acquisition point) REF (reference point) GND (ground point); Adopting advanced noise filtering technology, low energy consumption, battery powered (working time greater than 10 hours); The EEG data is output at 512 Hz with a sampling rate of 512 Hz and a frequency range of 3Hz-100Hz. Brainwave signals can process and output alpha, beta, gamma and other brainwave band data; Real time collection of individual EEG signals, and through specialized algorithms, real-time acquisition and display of 8 sets of EEG parameters, concentration values, and relaxation ability values of students.

2 Signal receiving adapter: wireless data transmission. Adopting hardware binding mode, allowing one-to-one wireless communication between EEG devices and adapted data acquisition receivers, automatic matching, and no mutual interference.

3 Collection and analysis system: composed of a computer system and a software system. The collection and analysis software system is a data collection and analysis software system based on network applications, using a browser-Server structure, to facilitate the implementation and classification statistical analysis of different types of teaching and experiments.