Portable wireless electroencephalogram acquisition device

An acquisition device and portable technology, applied in the field of portable wireless EEG acquisition devices, can solve the problems of increased device volume, difficulty in miniaturization, difficulty in system miniaturization and portability, and achieve system optimization, volume reduction, and good portability Effect

Active Publication Date: 2012-06-27
XI AN JIAOTONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

Such an acquisition device is difficult to miniaturize, especially when the number of acquisition channels increases, the volume of

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  • Portable wireless electroencephalogram acquisition device
  • Portable wireless electroencephalogram acquisition device
  • Portable wireless electroencephalogram acquisition device

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] see figure 1 , the present invention includes a plurality of scalp electrodes connected to the input end of the EEG acquisition module for EEG signal acquisition, the output end of the scalp electrodes is connected to the EEG signal extraction module, and the EEG signal processed by the EEG signal extraction module Input the EEG signal processing module, the EEG data processed by the EEG signal processing module and the real-time feature information package are sent to the EEG signal receiving end in a wireless way; it also includes the EEG signal extraction module and the EEG signal A power module for powering the processing module;

[0016] The EEG signal receiving end is used to receive the signal sent by the EEG signal processing module, and send it to the computer for display through the USB transmission interface.

[0017] A plurality of scalp...

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Abstract

The invention relates to a portable wireless electroencephalogram acquisition device which comprises a plurality of scalp electrodes. The scalp electrodes are connected with the input end of an electroencephalogram acquisition module and used for acquiring electroencephalogram signals; the output ends of the scalp electrodes are connected with an electroencephalogram signal extraction module; and the electroencephalogram signals processed by using the electroencephalogram signal extraction module are input into an electroencephalogram signal processing module and sent to an electroencephalogram signal receiving end in a wireless way. The volume of the front-end circuit of the traditional electroencephalogram acquisition system is greatly reduced, and the wireless electroencephalogram acquisition device is hereby portable. Due to the adoption of the wireless transmission way, the restriction of the wired electroencephalogram acquisition system to the spacial position of the tested object is eliminated. The processing of the analog signal in the traditional electroencephalogram acquisition system is converted into the processing of the digital signal, and due to the adoption of the digital signal processing method, the parameters of the electroencephalogram acquisition system can be adjusted flexibly, the electroencephalogram acquisition system can be optimized, and the cost of the electroencephalogram acquisition system can be reduced.

Description

technical field [0001] The invention relates to an EEG acquisition device, in particular to a portable wireless EEG acquisition device. Background technique [0002] EEG Figure 1 It has always been an important means for the diagnosis of clinical neurological diseases and the research of cognitive physiology and psychology. The performance of the EEG signal acquisition device will directly affect the reliability of the system and the effectiveness of the treatment. Most of the existing EEG acquisition and processing systems transmit the signals to the host computer through cables. [0003] The EEG electrode is a high-impedance signal source, and the preamplifier uses an instrumentation amplifier with high input impedance (over 10 megohms) and high common-mode rejection ratio. Before the EEG signal enters the ADC, it must be amplified, so that the output dynamic range of the ADC can be fully utilized. The range of a typical ADC is 2.5V, which requires the gain of the EEG a...

Claims

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Application Information

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IPC IPC(8): A61B5/0476
Inventor 王珏刘天李强林盘
Owner XI AN JIAOTONG UNIV
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