Electroencephalogram acquisition and wireless transmission device

Abstract

The invention discloses an electroencephalogram acquisition and wireless transmission device, which comprises a TGAM module, a forehead electrode, two ear clip electrodes, a Bluetooth transmitting module, a Bluetooth receiving module and an upper computer, wherein the output of the forehead electrode is connected to the TGAM module; the outputs of the two ear clip electrodes are respectively connected to the TGAM module; the input of the Bluetooth transmitting module is connected to the TGAM module; the Bluetooth receiving module is connected to the Bluetooth transmitting module in a mode of wireless communication; the input of the upper computer is connected to the Bluetooth receiving module; and the upper computer is provided with a USB interface module and an electroencephalogram display and analysis system: the input of the USB interface module is connected to the Bluetooth receiving module and the output is connected to the electroencephalogram display and analysis module. The device disclosed by the invention can achieve electroencephalogram acquisition and wireless transmission, avoid the limit of conventional wired measurement and enhance the mobility of the system, and the device can display electroencephalogram in real time and implement time-frequency analysis; and the device is reasonable and portable in structure, convenient to operate, applicable to the fields of medicine, education, scientific research and the like, and suitable for medical detection, technical research and development, etc.

Description

technical field

[0001] The invention relates to medical instruments, in particular to a device for collecting and wirelessly transmitting brain waves. Background technique

[0002] When the brain nerves are active, there will be weak electric field fluctuations. When tens of thousands of nerves are active at the same time, the electric field will produce rhythmic fluctuations. These fluctuations, known as brain waves, can be measured from the scalp. Different mental states will cause different forms of neural activity, resulting in different brain waves. The characteristics of the EEG signal: First, the EEG signal is very weak, generally only about 50 μV, and the amplitude range is 5 μV to 100 μV, so the amplification gain of the EEG signal is much higher than that of the general signal, generally about 20,000 times. Second, the EEG signal scalp and skull usually have a resistance of several thousand Ω, so the front part is required to have a high input impedance to improv...

Examples

Embodiment Construction

[0015] see figure 1 , the brainwave collection and wireless transmission device of the present invention, a brainwave collection and wireless transmission device, comprising a TGAM module 1, a forehead electrode 2 for sticking to the forehead, two earplugs for clamping on the left and right earlobes clamp electrode 3, bluetooth sending module 4, bluetooth receiving module 5 and host computer 6.

[0016] TGAM module 1 adopts the EEG acquisition module TGAM of NeuroSky Shennian Technology.

[0017] The output of the forehead electrode attached to the forehead is connected to the TGAM module; the forehead electrode is a silver chloride dry electrode using NeuroSky technology.

[0018] The outputs of the two ear clip electrodes used to clip on the left and right earlobes are respectively connected to the TGAM module; the ear clip electrodes are equipped with a ground electrode that makes the voltage of the human body equal to the voltage of the ear clip, and can filter out ambien...

technical field

[0001] The invention relates to medical instruments, in particular to a device for collecting and wirelessly transmitting brain waves. Background technique

[0002] When the brain nerves are active, there will be weak electric field fluctuations. When tens of thousands of nerves are active at the same time, the electric field will produce rhythmic fluctuations. These fluctuations, known as brain waves, can be measured from the scalp. Different mental states will cause different forms of neural activity, resulting in different brain waves. The characteristics of the EEG signal: First, the EEG signal is very weak, generally only about 50 μV, and the amplitude range is 5 μV to 100 μV, so the amplification gain of the EEG signal is much higher than that of the general signal, generally about 20,000 times. Second, the EEG signal scalp and skull usually have a resistance of several thousand Ω, so the front part is required to have a high input impedance to improv...

Examples

Embodiment Construction

[0015] see figure 1 , the brainwave collection and wireless transmission device of the present invention, a brainwave collection and wireless transmission device, comprising a TGAM module 1, a forehead electrode 2 for sticking to the forehead, two earplugs for clamping on the left and right earlobes clamp electrode 3, bluetooth sending module 4, bluetooth receiving module 5 and host computer 6.

[0016] TGAM module 1 adopts the EEG acquisition module TGAM of NeuroSky Shennian Technology.

[0017] The output of the forehead electrode attached to the forehead is connected to the TGAM module; the forehead electrode is a silver chloride dry electrode using NeuroSky technology.

[0018] The outputs of the two ear clip electrodes used to clip on the left and right earlobes are respectively connected to the TGAM module; the ear clip electrodes are equipped with a ground electrode that makes the voltage of the human body equal to the voltage of the ear clip, and can filter out ambien...

Images