Without fixed contact eeg collection system and its information collecting method
Technical field
The present invention relates to the collection of the bioelectrical signals of electrophysiological diagnosis kind equipment technical field, process and conveyor apparatus,
Specifically a kind of without fixed contact eeg collection system and its information collecting method.
Background technology
With the continuous progress of science and technology, and hospital seeks medical advice the continuous growth of number, and portable medical device meets the tendency of
And give birth to, people can stay indoors the safe and reliable Medical Devices for using.
EEG signals are the overall reflections of cranial nerve cell group's bioelectrical activity, and the different conditions of brain and the cause of disease can make brain
EEG signals in zones of different or frequency range change, so that EEG signals show different mode.EEG(electrocardiogram) examination is existing
Play an important role in the clinical diagnosis of psychoneural section, oneself is it is found that many encephalopathics and mental illness and EEG signals
Abnormal related.EEG signals are also commonly used to do monitoring of sleep analysis, depth of anesthesia etc..The analysis of clinical electroencephalogram is brain mostly
Electrograph expert understands and evaluates by estimating the method for marking, easily causes error and fatigue, and cause clinically lead brain more
" data compression " and " feature extraction " of electric signal is rested in subjective process level always.After the sixties, area of computer aided brain
Electric signal analysis and the developmental research of EEG signals automatic analysis system, propose many EEG signals are carried out point from engineering viewpoint
The method of analysis, and have made some progress and achievement.
But common eeg signal acquisition system is higher using loaded down with trivial details, cost and generally needs one letter of body-worn
Breath tape deck, and need to smear conducting medium on skin, it is worth Patient Experience poor.
Content of the invention
The present invention is for above-mentioned deficiency present in prior art, there is provided a kind of without fixed contact eeg collection system
And its information collecting method.
The present invention is achieved by the following technical solutions.
A kind of without fixed contact eeg collection system, including:Array of acquisition units, electrod-array fixing device and nothing
Line Receiver Module, wherein:
- array of acquisition units is removably mounted in electrod-array fixing device, the array of acquisition units with wireless
Receiver Module wirelessly connects;
- electrod-array fixing device, for placing array of acquisition units, is just gathered by adjusting electrod-array fixing device
Cell array is in close contact with collection position, and provides the connecting path of reference potential for array of acquisition units;
- less radio-frequency receiver module, is wirelessly connected with array of acquisition units, for receiving the brain of array of acquisition units transmission
Signal characteristics information, and EEG signals characteristic information is sent to the information processing terminal;
The array of acquisition units includes that a brain electricity reference potential unit and the multiple brain electricity of apparent size identical are adopted
Collection unit and some temperature collecting cells, wherein:
- multiple brain wave acquisition units are arranged in electrod-array fixing device in an array manner, for gathering brain telecommunications
Number;
- temperature collecting cell is arranged in electrod-array fixing device, for collecting temperature signal data;
- brain electricity reference potential unit is arranged in electrod-array fixing device, for carrying to each brain wave acquisition unit
Current potential for reference.
Any one brain wave acquisition unit described includes:Integrated EEG measuring electrode, brain electricity reference electrode, the first electricity
Source, the first signal transacting and wireless radio transmission module and first sensor mounting groove, the EEG measuring electrode and brain electricity
Reference electrode constitutes the collection terminal of brain wave acquisition unit, the first power supply and the first signal transacting and wireless radio transmission module collection
Become one integrally, and the fixing end of brain wave acquisition unit is constituted with first sensor mounting groove, wherein:
- EEG measuring electrode, for gathering EEG signals data;
- brain electricity reference electrode, is connected with brain electricity reference potential unit, for providing brain electricity reference to EEG measuring electrode
The reference potential of current potential unit collection.
- the first power supply, for the first signal transacting and wireless radio transmission module for power supply;
- the first signal transacting and wireless radio transmission module, are wirelessly connected with less radio-frequency receiver module, for brain electricity
The EEG signals that measuring electrode is collected are amplified, filter and pattern-recognition, and the EEG signals characteristic information for extracting is sent out
Deliver to less radio-frequency receiver module;
- first sensor mounting groove, for fixing brain wave acquisition unit;
Any one temperature collecting cell described includes:Integrated temperature acquisition chip, second source, secondary signal process
And wireless radio transmission module and second sensor mounting groove, the temperature acquisition chip constitutes temperature collecting cell
Collection terminal, second source is processed with secondary signal and wireless radio transmission module is integrated into an entirety, and is pacified with second sensor
Tankage constitutes the fixing end of temperature collecting cell, wherein:
- temperature acquisition chip, for collecting temperature signal data;
- second source, for secondary signal process and wireless radio transmission module for power supply;
The process of-secondary signal and wireless radio transmission module, are wirelessly connected with less radio-frequency receiver module, for temperature
The temperature signal that acquisition chip is collected is amplified, filters and pattern-recognition, and the temperature signal characteristic information for extracting is sent out
Deliver to less radio-frequency receiver module;
- second sensor mounting groove, for fixed temperature collecting unit.
The temperature collecting cell is preferably one.
The EEG measuring electrode includes:Conductive material, filling inner bag and end liner, the conductive wrap is in filling
The outside of courage, and on end liner, wherein, the conductive material is silver fiber conductive fabric or electroplates silver coating, the filling
Inner bag is sponge or ambroin, and the end liner is ambroin, and the silver fiber conductive fabric parcel sponge inner bag is simultaneously pasted onto
EEG measuring electrode is constituted on ambroin end liner or plating silver coating is covered on ambroin inner bag and is pasted onto insulated plastic
EEG measuring electrode is constituted on material end liner;
First power supply and second source are chargeable button battery.
The brain electricity reference electrode and EEG measuring electrode are detachable.
The electrod-array fixing device generally elastic head band structure, including elastic bands and embedding in an array manner
The multiple collecting unit fixing grooves being located in elastic bands, the bottom land of the plurality of collecting unit fixing groove pass through flexible wire phase
Connect, and be connected with brain electricity reference potential unit, the collecting unit fixing groove and brain wave acquisition unit and temperature acquisition list
The shape of the fixing end of unit is adapted.
The brain electricity reference potential unit generally ear-holder type structure, including ear clip and the reference being arranged on ear clip electricity
Position acquisition electrode, the reference potential acquisition electrode are two, and the positive and negative directly contact with side ear-lobe respectively.
The less radio-frequency receiver module, including radio-frequency antenna and micro USB interfaces, wherein, the radio-frequency antenna
For receiving the signal characteristic information that brain wave acquisition unit and temperature collecting cell send, the micro USB interfaces be used for
The information processing terminal is connected;
The radio-frequency antenna is onboard radio-frequency antenna or external 2db-gdb antennas.
Above-mentioned without fixed contact eeg collection system.Also include collecting unit cradle, the collecting unit cradle
Including charging slot and USB interface, the USB interface is used for being connected with external power source, the charging slot with brain wave acquisition list
The shape of the fixing end of unit and temperature collecting cell is adapted, and the use for brain wave acquisition unit and temperature collecting cell is front
Charge.
A kind of information collecting method without fixed contact eeg collection system, comprises the following steps:
Step 1, data acquisition, including:
- brain wave acquisition unit is gathered by EEG measuring electrode many simultaneously with brain electricity reference potential unit as reference potential
The EEG signals of individual brain electricity key position;
- temperature collecting cell passes through temperature acquisition chip measurement temperature information;
Step 2, pretreatment, including:
The brain that first signal transacting of-brain wave acquisition unit and wireless radio transmission module are collected to EEG measuring electrode
Electric signal is filtered, amplifies, and obtains characteristic information by way of pattern match;
The temperature that the secondary signal of-temperature collecting cell is processed and wireless radio transmission module is collected to temperature acquisition chip
Degree signal is filtered, amplifies, and obtains characteristic information by way of pattern match;
Step 3, less radio-frequency send, the first signals collecting and less radio-frequency sending module and secondary signal gather with wireless
Radio frequency sending module by process after signal characteristic information sent by less radio-frequency;
Step 4, less radio-frequency are received:Less radio-frequency receiver module by radio-frequency antenna simultaneously receive multichannel EEG signals and
EEG signals characteristic information and some temperature signals and temperature signal characteristic information, and letter is transmitted to by micro USB ports
Breath processing terminal.
First signals collecting and less radio-frequency sending module sampled data in the form of frequency hopping, and adopt dynamic group
The mode of net launches data;
First signals collecting is equal with less radio-frequency sending module with less radio-frequency sending module and secondary signal collection
Multipoint wireless medical device communication agreement is relayed using intelligence, including:The Medical Devices interconnected communication standard of IEEE11073 definition
With IEC80001 Medical Devices IT network risk management agreements.
Signal transacting and signal transmission code used in the step 2 and step 3 is in the first signal transacting and wirelessly
Realize in the embedded system of radiofrequency emitting module or secondary signal process and wireless radio transmission module.
First innovative point of the present invention is to be combined temperature signal with traditional brain wave acquisition analysis system, deep in sleep
New scheme is provided in the applications such as degree monitoring, notice analysis.
Second innovative point of the present invention is EEG signals, the collection of temperature signal, feature extraction and less radio-frequency
Send and be integrated in battery-powered array of acquisition units, this innovation overcomes existing eeg collection system to be needed by solidifying
Attachment of electrodes is disturbed strong, electrode easily to come off, need the transmission cable that grows to be connected to eeg amplifier very much in affected part, signal by glue
The problems such as.
3rd innovative point of the present invention is to be applied in combination multiple brain wave acquisition units, and is needed according to measurement dynamic
State increases or decreases collecting unit, and a brain wave acquisition unit is a lead, and different leads are using electrod-array fixing device
On brain electricity reference potential unit as reference electrode.
4th innovative point of the present invention is to provide reference potential using brain electricity reference potential unit for EEG measuring, this
Innovation cause eeg signal acquisition easier, the EEG signals feature of collection becomes apparent from.
The present invention provide without fixed contact eeg collection system and its information collecting method, have the characteristics that:
(1) it is made up of multiple brain wave acquisition units and a temperature collecting cell without fixed contact electrode array, can be with
The signal and temperature signals of multiple brain electricity key positions are gathered simultaneously;
(2) adopt without the fixed way of contact, during collection physiological signal without fixed contact electrode array, brain wave acquisition unit
General user can be directed to, arbitrarily electrode can be contacted with exposed skin of head;For the professional user of doctor, it is also possible to according to
The normal place of forehead EEG collection is placed, and realizes more accurately, more efficiently obtaining information;
(3) less radio-frequency of signal sends and receives:The EEG signals of pretreatment will be passed through, defined by IEEE11073
Medical Devices interconnected communication standard and IEC80001 Medical Devices IT network risk management protocol definitions device, by difference
Communication port, many-one is transmitted into wireless receiving module, and safety and reliability all meets high-quality medicine detector device mark
Accurate;
(4) signals collecting and less radio-frequency sending module gathered data in the form of frequency hopping, can reduce the biography of data
Defeated conflict is possible, is easy to the real-time for improving data;
(5) sports type headband of the electrod-array fixing device using harmless and comfortable wearing, conductive electrode are adopted
Reticulated conductive material electrode, and reference potential needed for being obtained using brain wave acquisition unit, make user have more preferable experience;
(6) multiple brain wave acquisition units can be applied in combination, and need dynamic to increase or decrease collecting unit according to measurement,
One brain wave acquisition unit is a lead, and different leads are using the ear-clip electrodes in electrod-array fixing device as reference.
(7) by the way of signals collecting and less radio-frequency sending module and wireless receiving module send reception using many-one,
User can be facilitated while using multiple equipment, and transmit data to host computer in real time.
Instant invention overcomes common eeg collection system is easy to operate, contact not signal interference, Yi Ji electricity caused by apt
Pole come off and using signal-transmitting cable cause inconvenient the problems such as, without using any organic solvent, be close to can electrode
On human body skin, accurate acquisition EEG signals, extract real-time characteristic information simultaneously pass through wireless radio frequency transmission to wireless receiving end.
The present invention provide without fixed contact eeg collection system and its information collecting method, make brain wave acquisition product have wear or
Win that easy to operate, picking rate is fast, number of electrodes can be increased or decreased whenever and wherever possible and without the need for do to system hardware and software
The features such as any modification, possesses larger using value.
Description of the drawings
Collection terminals of the Fig. 1 for brain wave acquisition unit;
Fixing ends of the Fig. 2 for brain wave acquisition unit;
Fig. 3 is electrod-array fixing device;
Fig. 4 is less radio-frequency receiver module;
Fig. 5 is electrode charge seat;
In figure, 1 is EEG measuring electrode, and 3 is lithium battery, and 4 is signal transacting and wireless radio transmission module, and 5 is brain electricity
Brain electricity reference potential unit, 6 is motor array fixing device, and 7 is collecting unit fixing groove, and 8 is collecting unit, and 9 is radio frequency day
Line, 10 is micro USB interfaces, and 11 is charging slot, and 12 is temperature collecting cell, and 13 is USB interface.
Specific embodiment
Below embodiments of the invention are elaborated:The present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following enforcements
Example.
As shown in figure 3, present embodiments provide a kind of without fixed contact eeg collection system, including:Collecting unit battle array
Row, electrod-array fixing device and less radio-frequency receiver module, wherein:
- array of acquisition units is removably mounted in electrod-array fixing device, the array of acquisition units with wireless
Receiver Module wirelessly connects;
- electrod-array fixing device.For placing array of acquisition units, collection is made by adjusting electrod-array fixing device
Cell array is in close contact with collection position, and provides the connecting path of reference potential for array of acquisition units;
- less radio-frequency receiver module, is wirelessly connected with array of acquisition units, for receiving the brain of array of acquisition units transmission
Signal characteristics information, and EEG signals characteristic information is sent to the information processing terminal;
The array of acquisition units includes that a brain electricity reference potential unit and the multiple brain electricity of apparent size identical are adopted
Collection unit and some temperature collecting cells, wherein:
- multiple brain wave acquisition units are arranged in electrod-array fixing device in an array manner, for gathering brain telecommunications
Number;
- temperature collecting cell is arranged in electrod-array fixing device, for collecting temperature signal data;
- brain electricity reference potential unit is arranged in electrod-array fixing device, for carrying to each brain wave acquisition unit
Current potential for reference.
As depicted in figs. 1 and 2, any one brain wave acquisition unit described includes:Integrated EEG measuring electrode, brain electricity ginseng
Examine electrode, the first power supply, the first signal transacting and wireless radio transmission module and first sensor mounting groove, the brain electricity
Measuring electrode and brain electricity reference electrode constitute the collection terminal of brain wave acquisition unit, the first power supply and the first signal transacting and wirelessly
Radiofrequency emitting module is integrated into one integrally, and constitutes the fixing end of brain wave acquisition unit with first sensor mounting groove, wherein:
- EEG measuring electrode, for gathering EEG signals data;
- brain electricity reference electrode, is connected with brain electricity reference potential unit, for providing brain electricity reference to EEG measuring electrode
The reference potential of current potential unit collection.
- the first power supply, for the first signal transacting and wireless radio transmission module for power supply;
- the first signal transacting and wireless radio transmission module, are wirelessly connected with less radio-frequency receiver module, for brain electricity
The EEG signals that measuring electrode is collected are amplified, filter and pattern-recognition, and the EEG signals characteristic information for extracting is sent out
Deliver to less radio-frequency receiver module;
- first sensor mounting groove, for fixing brain wave acquisition unit.
Further, the EEG measuring electrode includes conductive material, filling inner bag and end liner, wherein, the conduction
Material is wrapped in the outside of filling inner bag, and on end liner.The conductive material can be silver fiber conductive fabric or electricity
Plating silver coating.The filling inner bag can be sponge or ambroin.The end liner is ambroin.The EEG measuring electricity
Extremely sponge inner bag can be wrapped up for silver fiber conductive fabric and be pasted onto on ambroin end liner, or plating silver coating is covered
On ambroin inner bag and it is pasted onto on ambroin end liner.
Further, the conductive material is silver fiber, and the filling inner bag is that sponge fills inner bag.
Further, the power supply is chargeable lithium cell.
Further, brain electricity reference electrode and EEG measuring electrode are detachable.
Any one temperature collecting cell described includes:Integrated temperature acquisition chip, second source, secondary signal process
And wireless radio transmission module and second sensor mounting groove, the temperature acquisition chip constitutes temperature collecting cell
Collection terminal, second source is processed with secondary signal and wireless radio transmission module is integrated into an entirety, and is pacified with second sensor
Tankage constitutes the fixing end of temperature collecting cell, wherein:
- temperature acquisition chip, for collecting temperature signal data;
- second source, for secondary signal process and wireless radio transmission module for power supply;
The process of-secondary signal and wireless elbow frequency transmitter module, are wirelessly connected with less radio-frequency receiver module, for temperature
The temperature signal that acquisition chip is collected is amplified, filters and pattern-recognition, and the temperature signal characteristic information for extracting is sent out
Deliver to less radio-frequency receiver module;
- second sensor mounting groove, for fixed temperature collecting unit.
Further, as an eeg collection system generally only needs to temperature data all the way, so in the present embodiment
Temperature collecting cell is preferably one.
As shown in figure 3, further, the electrod-array fixing device generally elastic head band structure, ties up including elasticity
Band and be embedded the multiple collecting unit fixing grooves in elastic bands, the plurality of collecting unit fixing groove in an array manner
Bottom land be connected with each other by flexible wire, and be connected with brain electricity reference potential unit, the collecting unit fixing groove and brain are electric
The shape of the fixing end of collecting unit and temperature collecting cell is adapted.
Further, electrod-array fixing device is available for the people of different head circumferences to use using telescopic elastic material, and which is wide
Spend for 1.5cm, thickness is 0.5cm.
Further, the brain electricity reference potential unit generally ear-holder type structure, including ear clip and is arranged on ear clip
On reference potential acquisition electrode, the reference potential acquisition electrode is two, and direct with the positive and negative of side ear-lobe respectively
Contact.
As shown in figure 4, further, the less radio-frequency receiver module, connects including radio-frequency antenna and micro USB
Mouthful, wherein, the radio-frequency antenna is used for receiving the signal characteristic information that brain wave acquisition unit and temperature collecting cell send, described
Micro USB interfaces are used for being connected with the information processing terminal;
Further, the radio-frequency antenna is onboard radio-frequency antenna or external 2db-9db antennas.
As shown in figure 5, above-mentioned without fixed contact eeg collection system, also include collecting unit cradle, the collection
Unit cradle includes charging slot and USB interface, and the USB interface is used for being connected with external power source, the charging slot with
The shape of the fixing end of brain wave acquisition unit and temperature collecting cell is adapted, and for brain wave acquisition unit and temperature acquisition list
The front charging of first use.
In the present embodiment, brain wave acquisition unit and temperature collecting cell are arranged in electrod-array fixing device, and can
In measurement process, dynamic increases or decreases the quantity of brain wave acquisition unit;Electrod-array fixing device by brain wave acquisition unit and
Temperature collecting cell is close to human skin, and provides each road brain wave acquisition elements reference current potential to brain electricity reference potential unit
Connecting path;It is the signal transmission relation of one-to-many between less radio-frequency receiver module and multiple brain wave acquisition units, is surveying
The quantity of brain wave acquisition unit can be dynamically increased or is reduced during amount;Electrode charge seat is used for system and gives brain electricity using front
Collecting unit and temperature collecting cell charge.
Brain wave acquisition unit and temperature collecting cell have identical apparent size, can install electrod-array fixing device
In any one collecting unit fixing groove.Brain wave acquisition unit is integrated with the embedded of brain electric treatment and wireless line radiofrequency emitting module
Formula system;Temperature collecting cell is integrated with the embedded system of signal transacting and wireless radio transmission module.Brain wave acquisition unit
The EEG signals for collecting can be amplified, be filtered, feature extraction, wireless radio transmission;Temperature collecting cell can lead to
The temperature test chip that crosses in unit extracts the temperature information of test point.
Brain wave acquisition unit, without the need for placing according to traditional electrode for encephalograms position, is without fixed contact type structure.
Between signals collecting and less radio-frequency sending module and less radio-frequency receiver module in the brain wave acquisition unit
For many-one signal transmission, and signals collecting and dispensing device quantity can be increased or decreased at any time.
The present embodiment provide without fixed contact eeg collection system, its information collecting method is comprised the following steps:
Step 1, data acquisition, including:
- brain wave acquisition unit is gathered by EEG measuring electrode many simultaneously with brain electricity reference potential unit as reference potential
The EEG signals of individual brain electricity key position;
- temperature collecting cell passes through temperature acquisition chip measurement temperature information;
Step 2, pretreatment, including:
The brain that first signal transacting of-brain wave acquisition unit and wireless radio transmission module are collected to EEG measuring electrode
Electric signal is filtered, amplifies, and obtains characteristic information by way of pattern match;
The temperature that the secondary signal of-temperature collecting cell is processed and wireless radio transmission module is collected to temperature acquisition chip
Degree signal is filtered, amplifies, and obtains characteristic information by way of pattern match;
Step 3, less radio-frequency send, the first signals collecting and less radio-frequency sending module private secondary signal gather with wireless
Radio frequency sending module by process after signal characteristic information sent by less radio-frequency;
Step 4, less radio-frequency are received:Less radio-frequency receiver module by radio-frequency antenna simultaneously receive multichannel EEG signals and
Its characteristic information and some temperature signals and its characteristic information, and the information processing terminal is transmitted to by micro USB ports.
Further, in the step 1, it is more to obtain with dispensing device quantity that user can increase signals collecting at any time
Brain electric information reduces brain conductance connection quantity to reduce headband weight and volume;
Further, first signals collecting and less radio-frequency sending module sampled data in the form of frequency hopping, and
Launch data by the way of dynamic group net.
Further, first signals collecting is sent out with less radio-frequency with less radio-frequency sending module and secondary signal collection
Module is sent to relay multipoint wireless medical device communication agreement using intelligence, including:The Medical Devices interconnection of IEEE11073 definition
Communication standard and IEC80001 Medical Devices IT network risk management agreements.
Further, the signal transacting and signal transmission code used in the step 2 and step 3 is at the first signal
Realize in the embedded system of reason and wireless radio transmission module or secondary signal process and wireless radio transmission module.
Further, the EEG Processing code and EEG signals are wirelessly transferred code in brain wave acquisition unit
Realize in signals collecting and the embedded system of less radio-frequency sending module.It is equal that filter code and EEG signals are wirelessly transferred code
Write using Keil C51.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various modifications or modification within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.