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Electroencephalogram event synchronization system and method based on multi-channel electroencephalogram acquisition

An event synchronization and multi-channel technology, applied in computer components, electrical digital data processing, data processing input/output process, etc., can solve the problems of high cost, loss of event synchronization information, high complexity of equipment hardware, etc., and achieve high performance The effect of low requirements, reduced interaction, and reduced complexity

Active Publication Date: 2021-08-24
中科搏锐(北京)科技有限公司 +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of the loss of event synchronization information in the existing EEG event synchronization, and the high complexity and high cost of equipment hardware in the event synchronization acquisition of multi-acquisition channels; therefore, the present invention provides a multi-channel based EEG Event Synchronization System and Method for EEG Acquisition

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  • Electroencephalogram event synchronization system and method based on multi-channel electroencephalogram acquisition

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Embodiment

[0028] For example, one of the commonly used brain electrical stimulation paradigms is black and white flipping checkerboards, and the black and white checkerboards are flipped alternately between black and white at a set time, for example, flipping twice per second. The synchronous stimulation event device is a computer installed with a black-and-white flip checkerboard stimulation program. When the stimulation program starts, an instruction is sent synchronously to start each data acquisition module for data acquisition. During the data acquisition process of each data acquisition module, the data point acquisition information will be recorded, and The data information and data point collection information are packaged and sent to the EEG data collection device through the Ethernet port. At the same time, every time the black and white checkerboard stimulation program flips, it sends instructions to the control device through the serial port to notify the control device of th...

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Abstract

The invention discloses an electroencephalogram event synchronization system and method based on multi-channel electroencephalogram acquisition. A data acquisition device comprises a homologous clock module and a plurality of multi-channel data acquisition modules which are arranged in parallel, the plurality of data acquisition modules perform synchronous starting and synchronous acquisition of all data point information through the homologous clock module, and upload the data point information to an electroencephalogram data acquisition device; a control device records the external stimulation event information of a synchronous stimulation event device, obtains the data point information corresponding to all external stimulation events from the data acquisition device and uploads the data point information to the electroencephalogram data acquisition device; and the electroencephalogram data acquisition device matches the information uploaded by the control device with the information uploaded by the data acquisition device to obtain the corresponding relationship between the external stimulation event and the data point information. According to the present invention, the synchronous external stimulation event information and the data point information are separately recorded and transmitted, and the reliability of synchronous event transmission can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of multi-channel EEG signal acquisition, in particular to an EEG event synchronization system and method based on multi-channel EEG acquisition. Background technique [0002] The brain is the most important part of the human body, responsible for the individual's movement, vision, perception and other important functions. In the process of clinical diagnosis and treatment and brain science research, the evoked potential in the brain electrical activity is measured and analyzed. However, the individual evoked potentials are often very weak, less significant and difficult to measure, so some external stimulation events are often needed to activate the physiological electrical activity of specific brain regions, and the initial moment of the stimulation event and the start of the EEG data need to be recorded synchronously time. Generally, when conducting external stimulation experiments, it is often necessary...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/369A61B5/378A61B5/38A61B5/383G06F3/01
CPCG06F3/015
Inventor 张鑫余坚张志勇
Owner 中科搏锐(北京)科技有限公司
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