CN111481195A - Wireless acquisition system for electroencephalogram signal acquisition - Google Patents
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Abstract
The invention relates to the technical field of electroencephalogram signal acquisition, in particular to a wireless acquisition system for acquiring electroencephalogram signals, which comprises a recording end and a plurality of acquisition ends, wherein the recording end is carried by a user and is used for wirelessly receiving the electroencephalogram signals, the acquisition ends are used for acquiring the electroencephalogram signals of different brain positions, each acquisition end comprises an acquisition module, a processing module, a conversion module and a transmission module, the acquisition modules are used for acquiring the electroencephalogram signals of the brain and transmitting the electroencephalogram signals to the conversion modules, the conversion modules are used for acquiring the electroencephalogram signals for conversion and transmitting the converted electroencephalogram signals to the processing modules, the processing modules are used for packaging the converted electroencephalogram signals and then transmitting the converted electroencephalogram signals to the transmission modules, and the transmission modules are used. The acquisition end is not directly connected with the recording end through the lead wire to transmit data, so that the activity of a patient is not limited by a lead wire, and the use is more convenient.
Description
Technical Field
The invention relates to the technical field of electroencephalogram signal acquisition, in particular to a wireless acquisition system for acquiring electroencephalogram signals.
Background
The informatization development of the medical technology leads the medical technology to be more and more advanced, and the development of the medical technology also leads the diagnosis and treatment of diseases to be more accurate, convenient and rapid. The brain electrical signal is a spontaneous electrical potential activity which is generated by brain neuron activity and exists all the time, and is an important bioelectric signal. The electroencephalogram signals can provide diagnosis basis for certain brain diseases, and can be used for assisting in judging curative effect to adjust treatment strategies in time, such as epilepsy, Alzheimer's disease, hysteria and other diseases. Therefore, the acquisition of the electroencephalogram signals is very important.
In the existing electroencephalogram signal monitoring system, an electrode plate on the brain collects electroencephalograms, and then the electroencephalograms are input into an electroencephalograph through a lead wire, and then electroencephalographs analyze the electroencephalograms recorded by the electroencephalograph through related software. In order to package the integrity of electroencephalogram signal monitoring, a plurality of positions of a brain need to be monitored simultaneously, more electrode plates are needed during electroencephalogram signal monitoring, more lead wires are arranged between an electroencephalograph and the electrode plates, a user cannot move freely in the electroencephalogram signal monitoring process, and the electroencephalogram monitoring device is extremely inconvenient to use, and is particularly used for long-time electroencephalogram monitoring.
Disclosure of Invention
The invention aims to provide a wireless acquisition system for electroencephalogram signal acquisition, so as to solve the problem of inconvenience in electroencephalogram signal monitoring in the prior art.
A wireless collection system for brain electrical signal gathers in this scheme, including supply the user to hand-carry and carry out wireless receiving's record end and a plurality of collection end of gathering the brain electrical signal of different brain positions to brain electrical signal, the collection end is including collection module, processing module, conversion module and sending module, the brain electrical signal conveying of brain is gathered to the collection module conveys to conversion module, conversion module acquires brain electrical signal and converts and conveys the brain electrical signal after will converting to processing module, processing module sends the brain electrical signal after will converting to sending module, sending module sends the brain electrical signal after will encapsulating to record end storage wirelessly.
The beneficial effect of this scheme is:
compared with the prior art, on the one hand, through the electroencephalogram signals on a plurality of positions of the brain of a plurality of collection terminals, the electroencephalogram signals are wirelessly sent to the recording terminal by the sending module after being converted by the conversion module, the recording terminal can be carried by a user, if the user carries home to collect the electroencephalogram signals, the activities of the user cannot be limited, and the use is very convenient.
On the other hand, every collection end carries out wireless transmission to the record end with the electroencephalogram signal of gathering alone, if an electrode tip gathers then wireless transmission as collection module, need not to set up the lead wire between a plurality of collection ends and record end, and user's position is not restricted, even need carry out long-time monitoring to user's electroencephalogram signal, also need not to keep the user to be located a position for a long time, and the electroencephalogram signal monitoring is more convenient.
Further, the recording end comprises a control module and a communication module, the control module acquires and compares the acquired electroencephalogram signals with a preset electroencephalogram threshold value, the control module wirelessly sends abnormal information to a medical end of a background through the communication module when judging that the electroencephalogram signals are abnormal, the electroencephalogram threshold value comprises a threshold value range and a lower limit value, and the abnormal signals comprise pathologic abnormal signals and abnormal signals of falling off of the acquisition end.
The beneficial effects are that: the control module analyzes pathological and collection end falling abnormal information in the electroencephalogram signals, and the problem that the abnormal information cannot be found in time when a plurality of collection ends send more electroencephalogram signals at the same time is avoided.
Further, the control module comprises a judging unit, the judging unit judges whether the electroencephalogram signal is within a threshold range, the judging unit sends out a pathological abnormal signal when the electroencephalogram signal is outside the threshold range, and the control module adds a pathological identification section to the converted electroencephalogram signal according to the pathological abnormal signal.
The beneficial effects are that: when the judgment unit judges that the pathology in the electroencephalogram signals is abnormal, a pathology identification section is added to the electroencephalogram signals, and the abnormal electroencephalogram signals are marked in time so as to be convenient to check and perform subsequent processing in time.
Furthermore, the recording end also comprises a storage module, and the storage module stores the converted electroencephalogram signals.
The beneficial effects are that: the electroencephalogram signals are stored, so that the electroencephalogram signals can be traced conveniently in the follow-up process, and omission is avoided.
The control module further comprises a comparison unit, the comparison unit is used for comparing the acquired electroencephalogram signals with a set lower limit value, the comparison unit sends out electrode falling abnormal signals when the electroencephalogram signals are smaller than the lower limit value, the control module determines falling time according to the electrode falling abnormal signals, and the control module adds falling identification sections to the electroencephalogram signals in a first time length before and after the falling time.
The beneficial effects are that: the two units are used for respectively judging and analyzing pathological abnormality and abnormality caused by electrode falling, so that two different kinds of abnormal information are prevented from being confused and cannot be found in time, when the abnormality caused by electrode falling is obtained through electroencephalogram signal analysis, a falling identification section is added to the electroencephalogram signal within a period of time, and the electroencephalogram signal with possible errors can be found in time.
Further, the control module comprises a timing unit for timing the electroencephalogram signal transmission, the timing unit sends out a timing transmission signal when the timing is finished, and the control module sends the electroencephalogram signal in the storage module to the medical terminal to the communication module when simultaneously acquiring the pathological abnormal signal and the timing transmission signal.
The beneficial effects are that: when the electroencephalogram signals obtained through analysis have pathological abnormalities and reach the time of timing transmission, all the electroencephalogram signals are transmitted, so that the reference property is improved, all the signals can be conveniently contrasted and analyzed, and the accuracy of subsequent analysis results is improved.
Furthermore, the control module adds a falling identification section to the electroencephalogram signal when acquiring the electrode falling abnormal signal and the timing sending signal at the same time, and the control module sends the electroencephalogram signal to the communication module when the next time for sending the electroencephalogram signal arrives.
The beneficial effects are that: when the electrode fall abnormity is detected and the timing sending time is reached, a fall identification section is added to the electroencephalogram signal, the electroencephalogram signal is sent when the next timing sending time of the electroencephalogram signal is reached, and the continuity of the sent acquired electroencephalogram signal is improved.
Further, when the electrode shedding abnormal signal and the pathological abnormal signal are acquired simultaneously, the control module adds shedding identification sections to the plurality of electroencephalogram signals within a second time length before and after the shedding moment, wherein the second time length is less than the first time length.
The beneficial effects are that: when the shedding abnormality and the pathological abnormality of the electroencephalogram signals are analyzed simultaneously, a shedding identification section is added to the electroencephalogram signals in a second time length which is shorter than the first time length, namely, part of the electroencephalogram signals are marked less, and the range of the electroencephalogram signals concerned is narrowed.
Further, the sending module and the recording end are in wireless communication through a Bluetooth protocol, and the communication module and the medical end are in wireless communication through a mobile communication protocol.
The beneficial effects are that: the electroencephalogram signals are wirelessly sent to the recording end by a Bluetooth protocol, and are sent to the medical end by a mobile communication protocol, such as a 2G, 3G, 4G or 5G communication protocol, so that the activity range of an object for acquiring the electroencephalogram signals can be kept unlimited, and the acquisition and sending of the electroencephalogram signals cannot be influenced.
Furthermore, the acquisition end also comprises a power module, and the power module is used for supplying power to the processing module.
The beneficial effects are that: the power supply module supplies power, so that the electroencephalogram signals can be continuously collected conveniently, and the continuity of the electroencephalogram signals is improved.
Drawings
Fig. 1 is an architecture diagram of a wireless acquisition system for electroencephalogram acquisition according to a first embodiment of the present invention;
fig. 2 is a schematic block diagram of an acquisition end and a recording end in a wireless acquisition system for electroencephalogram acquisition according to a first embodiment of the present invention.
Detailed Description
The following is a more detailed description of the present invention by way of specific embodiments.
Example one
A wireless acquisition system for electroencephalogram signal acquisition is shown in figures 1 and 2: comprises a plurality of acquisition ends for acquiring electroencephalogram signals of different brain positions, the plurality of acquisition ends are worn on the head in the existing electroencephalogram cap mode for acquiring the electroencephalogram signals, the acquisition ends comprise an acquisition module, a processing module and a conversion module, the device comprises a sending module and a power module, an acquisition module signal connection processing module, a sending module signal connection processing module, a conversion module signal connection processing module, a power module is used for supplying power for the processing module, the power module can supply power in a power supply mode in the existing Bluetooth headset, an acquisition end is wirelessly connected with a recording end, the recording end is used for a user to carry and wirelessly receives electroencephalogram signals of the acquisition end, the electroencephalogram signals can be represented by voltage values, the recording end comprises a communication module, a control module and a storage module, the communication module signal connection control module, the storage module signal connection control module, and the control module can supply power through a battery.
The brain electrical signal that collection module gathered the brain conveys conversion module, the brain electrical signal collection electrode on the collection module available current electrode cap, a plurality of collection end just form the electrode cap and wear at the head, conversion module acquires brain electrical signal and carries out the conversion and conveys the brain electrical signal after the conversion to processing module, conversion module can use current signal amplification circuit, each electronic components can select the product of paster type in the conversion module in order to reduce the volume of collection end, processing module sends the brain electrical signal after will converting to sending module after encapsulating, processing module can use the SOC chip of current sea thinking brand or other miniature and the chip that meets the requirements, sending module sends the brain electrical signal after the encapsulation to record end storage wirelessly, sending module and record end carry out wireless communication through the bluetooth protocol, sender in the sending module accessible bluetooth headset carries out information interaction with the receiver in the bluetooth headset that sets up in the record end.
The electroencephalogram signal receiving and packaging device comprises a communication module on a recording end, an electroencephalogram signal transmitting module, a control module, a judging unit and a comparing unit, wherein the communication module receives the encapsulated electroencephalogram signal and transmits the encapsulated electroencephalogram signal to the control module, the control module compares the electroencephalogram signal with a preset electroencephalogram threshold value to obtain an abnormal signal, the abnormal signal comprises a pathological abnormal signal and a collection end falling abnormal signal, the electroencephalogram threshold value comprises a threshold range and a lower limit value, the control module comprises the control unit, the judging unit is in signal connection with the control unit, the comparing unit is in signal connection with the control unit, the control module transmits the electroencephalogram signal to a storage module for storage, the storage module.
The control module judges whether the electroencephalogram signal is located in a threshold range through the judging unit, the threshold range can be set according to the normal electroencephalogram signal range of the brain, the threshold range comprises a lowest value and a highest value, the electroencephalogram signal is judged with the highest value and the lowest value respectively when the judging unit judges, the electroencephalogram signal is smaller than the lowest value or is located outside the threshold range when being larger than the highest value, when the electroencephalogram signal is located outside the threshold range, the judging unit sends out a pathological abnormal signal, the control unit of the control module acquires the pathological abnormal signal and adds a pathological identification section to the electroencephalogram signal, and the control unit stores the electroencephalogram signal with the pathological identification section added to the storage module.
The method comprises the steps that an electroencephalogram signal is compared with a set lower limit value by a comparison unit, the comparison unit sends an electrode falling abnormal signal when the electroencephalogram signal is smaller than the lower limit value, a control unit determines the falling time of an electrode according to the electrode falling abnormal signal, the control unit adds falling identification sections to the electroencephalogram signal within a first time period before and after the falling time, for example, the falling time is T, the first time period is N, the time range of adding the falling identification sections is from time (T-N) to time (T + N), the control unit wirelessly sends abnormal information to a medical end in a background through a communication module when the abnormal signal is obtained, the communication module wirelessly communicates with the medical end through a mobile communication protocol, and if the communication module performs information interaction through a 2G, 3G, 4G or 5G mobile communication protocol, the selection can be performed according to actual requirements.
In the specific implementation:
when gathering EEG signal, go on through wearing a plurality of collection ends at patient's head electrode cap, collection module on every collection end is gathered behind the EEG signal and is converted by conversion module, conversion module sends the EEG signal after the conversion to processing module, let processing module send the EEG signal after will converting to the record end with bluetooth communication mode through sending module after the encapsulation, it is connected through the lead wire to let need not between every collection end and the record end, the record end can let the user hand-carry, carry out EEG signal's collection home if the user, user's position and activity can not be restricted, it is located a position for a long time to need not to keep the user, EEG signal monitoring is more convenient, user's use is very convenient.
The method comprises the steps that a communication module on a recording end receives an electroencephalogram signal and transmits the electroencephalogram signal to a judging unit and a comparing unit, the judging unit judges whether the electroencephalogram signal is located in a threshold range, when the electroencephalogram signal is located outside the threshold range, the judging unit sends a pathological abnormal signal to the controlling unit, the controlling unit adds a pathological identification section to the electroencephalogram signal according to the pathological abnormal signal, the controlling unit stores the electroencephalogram signal added with the pathological identification section to a storage module, the comparing unit compares the electroencephalogram signal with a lower limit value, when the electroencephalogram signal is smaller than the lower limit value, the comparing unit sends an electrode falling abnormal signal to the controlling unit, the controlling unit determines the falling time of an electrode, namely the time of receiving the electrode falling abnormal signal, and the controlling unit adds falling identification sections to the electroencephalogram signal in a first time length before the falling time and after the falling time, when the control unit receives an abnormal signal, namely a pathological abnormal signal or an electrode falling abnormal signal, the control unit sends the corresponding abnormal signal to a medical end of a background through the communication module, so that the abnormal electroencephalogram signal is marked in time, and the identification section can increase the visibility and readability of the abnormal electroencephalogram signal so as to be convenient for viewing in time for subsequent processing.
Example two
The difference from the first embodiment is that the control module further includes a timing unit, the timing unit is in signal connection with the control unit, the timing unit performs timing on electroencephalogram signal transmission, the timing unit performs timing through an internal clock of the control module, timing duration can be set as required, for example, 24 hours, the timing unit sends out a timing transmission signal when timing is finished, and the control unit obtains the timing transmission signal and obtains the electroencephalogram signal in the storage module to be sent to a medical end in the background.
When an electrode falling abnormal signal and a timing sending signal are obtained simultaneously, a control unit of the control module adds a falling identification section to the electroencephalogram signal, the control unit sends the electroencephalogram signal to a medical end of a background through the communication module when the next time of sending the electroencephalogram signal arrives, namely the control unit sends the electroencephalogram signal when the timing sending signal is received next time, the situation that unmarked wrong electroencephalogram signals are sent to the medical end immediately is avoided, enough time is reserved for marking the falling identification section of the electroencephalogram signal, and the situation that signals when unmarked electrodes fall off are sent to the medical end is prevented.
When the abnormal electrode falling signal and the abnormal pathological signal are acquired simultaneously, the control unit adds falling identification sections to the electroencephalograms in a second time length before and after the falling time, the second time length is shorter than the first time length, the electroencephalogram abnormal error caused by the falling of the electrode is avoided being taken as the electroencephalogram abnormity caused by the pathology, the falling identification sections are added to the electroencephalograms in the second time length shorter than the first time length, namely, part of electroencephalograms are labeled less, and the range of the concerned falling electroencephalograms is narrowed.
When a timing sending signal and a pathological abnormal signal are obtained simultaneously, the control unit adds a pathological identification section to the electroencephalogram signal, the control unit sends the electroencephalogram signal to a medical end of a background through the communication module when the next timing sending time of the electroencephalogram signal arrives, namely the control unit sends the electroencephalogram signal when the timing sending signal is received next time, the electroencephalogram signal is not sent immediately, enough time is reserved for carrying out pathological identification operation on the electroencephalogram signal, and the situation that the unmarked electroencephalogram signal is sent to cause that partial data cannot be focused is prevented.
EXAMPLE III
The difference with the first embodiment is that the control unit does not directly send the electroencephalogram signal to the judging unit and the comparing unit, that is, the judging unit and the comparing unit do not work simultaneously, the control unit firstly sends the electroencephalogram signal to the judging unit for judgment, and when the electroencephalogram signal is located outside the threshold range, the electroencephalogram signal located outside the threshold range refers to the electroencephalogram signal being smaller than the lowest value, and then the control unit sends the electroencephalogram signal to the comparing unit for comparison.
Because the electroencephalogram signal detected when the electrode falls off or is in poor contact is very small, the electroencephalogram signal is only compared with the lower limit value when the electroencephalogram signal is judged to be out of the threshold range and smaller than the lowest value, and the electroencephalogram signal is not compared when the electroencephalogram signal is larger than the highest value, so that the operation energy consumption of the system can be saved.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A wireless collection system for brain electrical signal gathers, its characterized in that: including supply the user to hand-carry and carry out wireless receiving's record end and a plurality of collection end of gathering to the EEG signal of different brain positions, the collection end includes collection module, processing module, conversion module and sending module, the EEG signal conveying of collection module collection brain is to conversion module, conversion module acquires the EEG signal and converts and conveys the EEG after the conversion to processing module, processing module sends the EEG after will converting to sending module, sending module will encapsulate the EEG after to send to record end storage wirelessly.
2. The wireless acquisition system for electroencephalogram acquisition of claim 1, characterized in that: the recording end comprises a control module and a communication module, the control module acquires and compares the acquired electroencephalogram signals with a preset electroencephalogram threshold value, the control module wirelessly sends abnormal information to a medical end of a background through the communication module when the electroencephalogram signals are judged to be abnormal, the electroencephalogram threshold value comprises a threshold range and a lower limit value, and the abnormal signals comprise pathological abnormal signals and acquisition end falling abnormal signals.
3. The wireless acquisition system for electroencephalogram acquisition of claim 2, characterized in that: the control module comprises a judging unit which judges whether the electroencephalogram signal is within a threshold range, the judging unit sends out a pathological abnormal signal when the electroencephalogram signal is outside the threshold range, and the control module adds a pathological identification section to the converted electroencephalogram signal according to the pathological abnormal signal.
4. The wireless acquisition system for electroencephalogram acquisition of claim 2, characterized in that: the recording end further comprises a storage module, and the storage module stores the converted electroencephalogram signals.
5. The wireless acquisition system for electroencephalogram acquisition of claim 3, wherein: the control module further comprises a comparison unit, the comparison unit is used for comparing the collected electroencephalogram signals with a set lower limit value, the comparison unit sends out electrode falling abnormal signals when the electroencephalogram signals are smaller than the lower limit value, the control module determines falling time according to the electrode falling abnormal signals, and the control module adds falling identification sections to the electroencephalogram signals in a first time length before and after the falling time.
6. The wireless acquisition system for electroencephalogram acquisition of claim 5, wherein: the control module comprises a timing unit for timing the sending of the electroencephalogram signals, the timing unit sends out timing sending signals when the timing is finished, and the control module sends the electroencephalogram signals in the storage module to the medical end to the communication module when simultaneously acquiring the pathological abnormal signals and the timing sending signals.
7. The wireless acquisition system for electroencephalogram acquisition of claim 6, wherein: the control module adds a falling identification section to the electroencephalogram signal when acquiring an electrode falling abnormal signal and a timing sending signal, and sends the electroencephalogram signal to the communication module when the next time for sending the electroencephalogram signal arrives.
8. The wireless acquisition system for electroencephalogram acquisition of claim 7, wherein: when the electrode shedding abnormal signal and the pathological abnormal signal are acquired simultaneously, the control module adds shedding identification sections to the plurality of electroencephalogram signals within a second time length before and after the shedding moment, wherein the second time length is less than the first time length.
9. The wireless acquisition system for electroencephalogram acquisition of claim 1, characterized in that: the sending module and the recording end are in wireless communication through a Bluetooth protocol, and the communication module and the medical end are in wireless communication through a mobile communication protocol.
10. The wireless acquisition system for electroencephalogram acquisition of claim 1, characterized in that: the acquisition end further comprises a power module, and the power module is used for supplying power to the processing module.
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