CN105769183A - EEG (electroencephalogram) human body analyzer and EEG signal detection method - Google Patents
EEG (electroencephalogram) human body analyzer and EEG signal detection method Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 86
- 210000004556 brain Anatomy 0.000 claims abstract description 105
- 239000000284 extract Substances 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000004070 electrodeposition Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 26
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 12
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- 238000005086 pumping Methods 0.000 claims description 3
- 238000003745 diagnosis Methods 0.000 abstract description 2
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- 210000003128 head Anatomy 0.000 description 7
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- 238000012545 processing Methods 0.000 description 2
- 210000004761 scalp Anatomy 0.000 description 2
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- 230000003139 buffering effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/369—Electroencephalography [EEG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
- A61B5/0006—ECG or EEG signals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
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Abstract
The invention discloses an EEG (electroencephalogram) human body analyzer. The EEG human body analyzer comprises a head wearing part and a detection circuit arranged on the head wearing part. EEG detection lead wires of an EEG detection module are used for performing detection, and EEG signals obtained through detection are transmitted to a wireless transmission module; after the wireless transmission module transmits the EEG signals to a data terminal, the data terminal extracts different differential signals, classifies the differential signals and associates the differential signals of different channels with lead wire electrode positions of the channels where the differential signals are located according to comparison of the differential signals between the EEG signals detected by different EEG detection lead wires, and association of the differential signals and a brain functional region is obtained, so that the current EEG situation of the bran functional region nearby an EEG detection point is judged. The EEG human body analyzer can effectively detect EEG information for 24 h, the medical cost is reduced, and the diagnosis is accelerated.
Description
Technical field
The present invention relates to EEG checking device field, particularly relate to a kind of brain electricity human body analyser and EEG signals detection method.
Background technology
Along with the fast development of science and technology, medical level there has also been significant progress, and increasing disease is solved by Medical Technologist, but also has increasing New Type of Diseases to be found by experts and scholars, confirm.Brain wave, since being found and having paid close attention to, is just paid attention to by all kinds of medical workers, and the EEG checking device one that modernization medical treatment detection device is indispensable especially.While the appearance of large-scale brain electrical detection device brings Gospel to a series of sufferers, the price of its costliness also allows brain electro-detection medical services be difficult to become a major reason of general patient routine testing project with heavy volume.In order to make more colony enjoy convenient inexpensive brain electro-detection medical services, research and development institution of each side is researching and developing practicable brain electrical detection device energetically.
The principle of EEG signals detection equipment is, has many neurocytes in activity, and become the variation of electrical resistance in human brain.It is to say, there is the swing of electrical resistance to exist.And this swing is presented on scientific instrument, it appears that just as fluctuation.Electrical equipment vibrations in brain are we term it E.E.G.With in short E.E.G being described, perhaps it may be said that it is bioenergy produced by brain cell, or the rhythm of brain cell activity.The voltage produced on scalp is acquired by E.E.G at present usually by conductive electrode, through signal processing, the waveform drawn out just is called brain wave, and brain wave can reflect the active situation in each region of brain in real time, thus the diagnosis of the state of an illness is played a key effect.There is cost height in existing medical brain electrical detection device, volume is big, inconvenient to carry, data user rate is low, and the shortcoming that the quality of equipment is few.A kind of include individual's suitable in Various Hospitals therefore, it is necessary to develop, it is possible to effectively reduce use cost and portable novel EEG checking device.
Summary of the invention
The present invention is directed to the problem lacking the medical rank EEG checking device being specifically applied to private user in prior art, a kind of brain electricity human body analyser is provided, can effectively provide brain electric information was detected in 24 hours, reduce medical treatment cost, accelerate Diagnostic Time.
For solving the problems referred to above, the embodiment of the present invention provides a kind of brain electricity human body analyser, dresses the testing circuit on parts including head wearing parts with being located at described head, and described testing circuit includes MCU, wireless transport module, brain electro-detection module,
Described MCU couples described wireless transport module and brain electro-detection module, and for controlling duty and the operating frequency of wireless transport module and brain electro-detection module, and the data controlling wireless transport module and brain electro-detection module are transmitted；
Described brain electro-detection module includes at least two for detecting the brain electro-detection conducting wire of EEG signals, and EEG signals detection obtained is transmitted to wireless transport module；
Described wireless transport module is for receiving EEG signals that brain electro-detection module detects and described EEG signals being uploaded.
Optionally, also include data terminal, described data terminal couples described wireless transport module, for receiving the EEG signals that wireless transport module is uploaded, after wireless transport module is by EEG signals transmission to data terminal, differential signal between the EEG signals that data terminal is detected by different described brain electro-detection conducting wires by comparison, extract different differential signals, differential signal is sorted out, the different differential signals of passage are associated with the conducting wire electrode position of place passage, obtain associating between differential signal with brain domain, the brain electricity present situation of brain domain near brain electric-examination measuring point is judged.
Optionally, described head dresses parts is motion headband or medicated cap.
Optionally, described in be wirelessly transferred and include RF transceiver, EEG signals is uploaded to data terminal by described RF transceiver by described EEG signals.
A kind of EEG signals detection method, brain Electrical change is analyzed by described method and draws the brain electricity situation of above-mentioned brain electricity human body analyser connecting object by data terminal, by the differential signal between the EEG signals that comparison is detected by different described brain electro-detection conducting wires, extract different differential signals, differential signal is sorted out, the different differential signals of passage are associated with the conducting wire electrode position of place passage, obtain associating between differential signal with brain domain, the brain electricity present situation of brain domain near brain electric-examination measuring point is judged.
Optionally, also include conducting wire and connect signal detection step, described conducting wire connects signal detection step and the brain electro-detection conducting wire of different passages is positioned over appointment position, brain electro-detection module will send a pumping signal, determine whether each brain electro-detection conducting wire connects correctly by detecting the corresponding signal of each passage conducting wire.
Optionally, also include differential signal calculation procedure, the signal subtraction detected with the difference input brain electro-detection conducting wire of a passage is obtained differential signal by described differential signal calculation procedure, includes positive input conducting wire and the negative input conducting wire of different input with a passage.
Optionally, also including signal amplification procedure, the calculated differential signal of differential signal calculation procedure is amplified by described signal amplification procedure.
Optionally, also including signal filtrating step, the signal that signal amplification procedure is obtained is carried out three rank low-pass digital filters by the extracted digital filter of brain electro-detection inside modules and processes by described signal filtrating step.
The present invention has following notable technique effect: brain electricity human body analyser can effectively detect human body electroencephalogram's ripple, and accuracy of detection is high, and sensitivity is good, and stand-by time is long, adapts to various environment, uses simple, and volume is little easy to carry, and cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the brain electricity human body analyser of the embodiment of the present invention；
Fig. 2 is the schematic flow sheet of the EEG signals detection method of the brain electricity human body analyser of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, by specific embodiment, technical scheme is carried out clear, complete description.
As it is shown in figure 1, a kind of brain electricity human body analyser, dressing parts and the testing circuit being located on head wearing parts including head, testing circuit includes MCU100, wireless transport module 200, brain electro-detection module 300, data terminal 400.It can be movable head band or medicated cap that head dresses parts, has only to bring headband or medicated cap confirmation to wear correctly, can correctly collect EEG signals when installation.
MCU100 couples wireless transport module 200 and brain electro-detection module 300, and for controlling duty and the operating frequency of wireless transport module 200 and brain electro-detection module 300, and the data controlling wireless transport module 200 and brain electro-detection module 300 are transmitted.MCU100 mainly includes low-power scm and its peripheral circuit.MCU100 model is the IC chip that Texas Instruments produces, because this device needs volume little portable, powers with battery, and 16 super low-power consumption chip standby currents that the said firm produces are minimum such that it is able to ensure that brain electricity human body analyser runs for a long time continuously.
EEG signals is also uploaded to data terminal 400 by RF transceiver by EEG signals that wireless transport module 200 detects for receiving brain electro-detection module 300；Brain electricity human body analyser can use wired or wireless and main frame to communicate, consider to install and maintenance cost, adopt wireless solution in the present embodiment, wireless transport module 200 is the super low-power consumption Bluetooth chip adopting Texas Instruments to produce, and it is mainly for industry, scientific research, medical treatment and short-range wireless communication apparatus and wearable device.Receiving sensitivity reaches-94dBm.Can provide processing data packets, data buffering FIFO, received signal strength indicator (RSSI), wake the hardware supported of the functions such as intervalometer, low voltage test, temperature sensor, 10 bit A/D converters and general I/O port up.
Brain electro-detection module 300 includes at least two for detecting the brain electro-detection conducting wire of EEG signals, and after different brain electro-detection conducting wires is placed into the scalp location specifying brain district corresponding, EEG signals detection obtained is transmitted to wireless transport module 200.Brain electro-detection conducting wire connects by standard, and each two brain electro-detection conducting wire one input channel of composition, multiple combination of channels are shaped as the brain wave figure of multi-lead.Led the brain wave figure of combination by difference, it is possible to the active situation of different brain domains is analyzed, the discriminatory analysis of the state of an illness is had a conclusive effect.
After wireless transport module 200 is by EEG signals transmission to data terminal 400, data terminal 400 is the data server being positioned at high in the clouds or far-end, all of EEG signals is collected and recorded to data terminal 400 by wireless connections, and EEG signals change is analyzed and draws each brain district brain wave present situation by following EEG signals detection method by data terminal 400.
EEG signals detection method is as follows: by comparison by the differential signal between the EEG signals detected with the different EEG signals detection conducting wire of a passage, extract different differential signals, differential signal is classified, different differential signals is associated to relevant passage, obtain the differential signal of current channel, the differential signal obtained carries out signal amplification, signal filters, it is achieved the detection (it is EEG signals that the EEG signals of destination channel refers to that conducting wire connects detection position, brain district) to the EEG signals of destination channel.In the present embodiment, it is by setting up certain electroencephalogram table, by the corresponding relation between different passages and brain district, analyze the amplitude change of EEG signals, frequency change, further according to signal distribution on frequency domain, brain district, signal place is carried out correspondence analysis, it is possible to obtain certain relevant information.
Except above-mentioned steps, also include conducting wire and connect signal detection step 501, differential signal calculation procedure 502, signal amplification procedure 503, signal filtrating step 504.
Conducting wire connects signal detection step 501 and the brain electro-detection conducting wire of different passages is positioned over appointment position, brain electro-detection module 300 will send a pumping signal, determine whether each brain electro-detection conducting wire connects correctly by detecting the response signal of each passage brain electro-detection conducting wire.
The signal subtraction detected with the difference input brain electro-detection conducting wire of a passage is obtained differential signal by differential signal calculation procedure 502, refers to positive input conducting wire and the negative input conducting wire of 1 differential signal with the difference input brain electro-detection conducting wire of a passage.
The calculated differential signal of differential signal calculation procedure 502 is amplified by signal amplification procedure 503.This step carries out on the programmable gain amplifier within brain electro-detection module 300, and amplification is obtained by MCU100.
The signal that signal amplification procedure 503 is obtained is carried out three rank low-pass digital filters by the extracted digital filter within brain electro-detection module 300 and processes by signal filtrating step 504, obtains clean signal.Signal filtrating step 504 read calculate from brain electro-detection module 300 through differential signal, the signal of signal amplification procedure 503, carry out digital filtering by MCU100 device；Digital filtering includes low-pass filtering, high-pass filtering and trap；Low-pass filtering refers to frequency lower than setting the target signal filter by frequency；High-pass filtering refers to frequency higher than setting the target signal filter by frequency；Trap refers to the target signal filter that frequency is in setpoint frequency limit on weekly duty, is mainly used in filtering the Hz noise of 50HZ or 60HZ.
Although the present invention is with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art are without departing from the spirit and scope of the present invention; may be by the method for the disclosure above and technology contents and technical solution of the present invention is made possible variation and amendment; therefore; every content without departing from technical solution of the present invention; according to any simple modification, equivalent variations and modification that above example is made by the technical spirit of the present invention, belong to the protection domain of technical solution of the present invention.
Claims (9)
1. a brain electricity human body analyser, it is characterised in that including head and dress parts and the testing circuit being located on described head wearing parts, described testing circuit includes MCU, wireless transport module, brain electro-detection module,
Described MCU couples described wireless transport module and brain electro-detection module, and for controlling duty and the operating frequency of wireless transport module and brain electro-detection module, and the data controlling wireless transport module and brain electro-detection module are transmitted；
Described brain electro-detection module includes at least two for detecting the brain electro-detection conducting wire of EEG signals, and EEG signals detection obtained is transmitted to wireless transport module；
Described wireless transport module is for receiving EEG signals that brain electro-detection module detects and described EEG signals being uploaded.
2. brain electricity human body analyser as claimed in claim 1, it is characterized in that, also include data terminal, described data terminal couples described wireless transport module, for receiving the EEG signals that wireless transport module is uploaded, after wireless transport module is by EEG signals transmission to data terminal, differential signal between the EEG signals that data terminal is detected by different described brain electro-detection conducting wires by comparison, extract different differential signals, differential signal is sorted out, the different differential signals of passage are associated with the conducting wire electrode position of place passage, obtain associating between differential signal with brain domain, the brain electricity present situation of brain domain near brain electric-examination measuring point is judged.
3. brain electricity human body analyser as claimed in claim 1, it is characterised in that it is motion headband or medicated cap that described head dresses parts.
4. brain electricity human body analyser as claimed in claim 2, it is characterised in that described in be wirelessly transferred and include RF transceiver, EEG signals is uploaded to data terminal by described RF transceiver by described EEG signals.
5. an EEG signals detection method, it is characterized in that, brain Electrical change is analyzed by described method and draws the brain electricity situation of above-mentioned brain electricity human body analyser connecting object by data terminal, by the differential signal between the EEG signals that comparison is detected by different described brain electro-detection conducting wires, extract different differential signals, differential signal is sorted out, the different differential signals of passage are associated with the conducting wire electrode position of place passage, obtain associating between differential signal with brain domain, the brain electricity present situation of brain domain near brain electric-examination measuring point is judged.
6. EEG signals detection method as claimed in claim 5, it is characterized in that, also include conducting wire and connect signal detection step, described conducting wire connects signal detection step and the brain electro-detection conducting wire of different passages is positioned over appointment position, brain electro-detection module will send a pumping signal, determine whether each brain electro-detection conducting wire connects correctly by detecting the corresponding signal of each passage conducting wire.
7. EEG signals detection method as claimed in claim 5, it is characterized in that, also include differential signal calculation procedure, the signal subtraction detected with the difference input brain electro-detection conducting wire of a passage is obtained differential signal by described differential signal calculation procedure, includes positive input conducting wire and the negative input conducting wire of different input with a passage.
8. EEG signals detection method as claimed in claim 7, it is characterised in that also including signal amplification procedure, the calculated differential signal of differential signal calculation procedure is amplified by described signal amplification procedure.
9. EEG signals detection method as claimed in claim 8, it is characterized in that, also including signal filtrating step, the signal that signal amplification procedure is obtained is carried out three rank low-pass digital filters by the extracted digital filter of brain electro-detection inside modules and processes by described signal filtrating step.
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2016
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|---|---|---|---|---|
| US5333616A (en) * | 1991-12-26 | 1994-08-02 | Instromedix, Inc. | Wrist-worn ECG monitor |
| US5458124A (en) * | 1994-02-08 | 1995-10-17 | Stanko; Bruce E. | Electrocardiographic signal monitoring system |
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