CN104720800B - A kind of electromagnetic wave signal processing unit - Google Patents
A kind of electromagnetic wave signal processing unit Download PDFInfo
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- CN104720800B CN104720800B CN201510177672.4A CN201510177672A CN104720800B CN 104720800 B CN104720800 B CN 104720800B CN 201510177672 A CN201510177672 A CN 201510177672A CN 104720800 B CN104720800 B CN 104720800B
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- 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
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
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Abstract
The embodiment of the invention discloses a kind of electromagnetic wave signal processing unit, including fixing device, controller, frequency converter and denoiser, wherein, the medial surface of fixing device is provided with least four electrode slices being electrically connected with the controller, and each electrode slice is electrically connected by controller with any one quality end in receiving terminal, transmitting terminal and earth terminal.First, Frequency Converter Control transmitting terminal is by electrode slice to the electromagnetic wave signal of the multiple different frequencies of skull internal emission, and then, two electrode slices electrically connected with receiving terminal receive electromagnetic wave signal, also, utilize the noise of denoiser reduction electromagnetic wave signal.
Description
Technical field
The present invention relates to signal monitoring technical field, more particularly to a kind of electromagnetic wave signal processing unit.
Background technology
Encephaledema refers to the increased pathological phenomenon of intracerebral moisture, is reaction of the brain tissue to various pathogenic factors.Encephaledema
Intracranial hypertension is easily caused, major injury brain tissue is clinically common in wound, encephalic sense inside the nervous system disease, such as skull
Contaminate (encephalitis, meningitis etc.), cranial vascular disease, Intracranial mass lesion (such as tumour), epileptic attack and systemic disease are such as
Toxic dysentery, severe pneumonia etc..Therefore, the encephaledema state of an illness is promptly and accurately diagnosed, encephaledema change of illness state, correct processing is grasped
The key factor that encephaledema is the damage of acute Brain circlulation, the cerebral disease such as wound, brain surgery infectious-related complication is successfully given treatment to inside skull it
One.
At present, the inspection method of encephaledema patient mainly includes intracranial pressure direct measurement, CT scan
(CT, Computer Tomography) and magnetic resonance imaging (MRI, Magnetic Resonance Imaging), wherein, cranium
Internal pressure direct measurement is a kind of method of indirect reflection degree of cerebral edema, including waist wears pressure measurement and dura mater measuring pressure from outside two ways,
But, intracranial pressure direct measuring method needs pressure sensor being placed in vivo, with traumatic, easily causes the pain of patient
It is bitter, it is impossible to be guarded.Meanwhile, this method can not can determine that the position of encephaledema and size, therefore, intracranial pressure are directly surveyed
Amount needs to be combined with CT or MRI technique.
CT is detected and although the use of MRI technique solves the problem of determining encephaledema position and size, but due to brain water
Swollen metamorphosis needs the regular hour, and CT and MRI can not be monitored in real time, causes brain can not be found and supervised in the very first time
Oedema situation.In addition, CT and MRI check consuming time length, it is costly, the need for being not suitable for bedside monitoring.Therefore, develop a kind of
Noninvasive, easy encephaledema detection technique, the treatment of cerebral disease related for encephaledema is very necessary, is also current encephaledema inspection
Survey field significant problem urgently to be resolved hurrily.
The content of the invention
A kind of electromagnetic wave signal processing unit is provided in the embodiment of the present invention, with it is simple, non-invasively monitor brain signal.
In order to solve the above-mentioned technical problem, the embodiment of the invention discloses following technical scheme：
A kind of electromagnetic wave signal processing unit, is detected for the skull to measurand, and described device includes fixing
Device, controller, frequency converter and denoiser；
Wherein, the inner surface of the fixing device is provided with least four electrode slices, and each electrode slice is and controller
Electrical connection；The distribution shape of the electrode slice and the shape phase of at least one skull suture on the skull of the measurand
Match somebody with somebody；
The controller is electrically connected with quality end, and the quality end includes receiving terminal, transmitting terminal and earth terminal；Each electricity
A controlling switch is all respectively arranged between pole piece and all properties end；Controller is controlled between each electrode slice and quality end
Controlling switch is opened or closed；
Wherein, the controlling switch closure between any two electrode slice and receiving terminal, and between earth terminal, transmitting terminal
Controlling switch is opened；Controlling switch closure between any one electrode slice and earth terminal, and between transmitting terminal, receiving terminal
Controlling switch is opened；Controlling switch closure between any one electrode slice and transmitting terminal, and between earth terminal, receiving terminal
Controlling switch is opened；
The output end of the frequency converter is electrically connected with transmitting terminal, to control transmitting terminal outwards to launch the electricity of multiple different frequencies
Magnetostatic wave signal；
The input of the denoiser is electrically connected with being connected two electrode slices of receiving terminal respectively, also, the denoiser
Output end electrically connected with the receiving terminal, to reduce the noise that electrode slice is sent to the electromagnetic wave signal of receiving terminal.
Alternatively, the controller includes：
Receive the control signal receiving terminal of objective attribute target attribute control signal；
Attribute information obtains circuit, and the attribute information obtains the defeated of the input of circuit and the control signal receiving terminal
Go out end electrical connection, to obtain the target property information of each electrode slice, the target category according to the objective attribute target attribute control signal
Property information includes：One in receiving electrode, emission electrode and grounding electrode；
Circuit is controlled, the input of the control circuit is electrically connected with the output end that the attribute information obtains circuit, with
According to the target property information of each electrode slice, the control between each electrode slice and corresponding objective attribute target attribute end is controlled to open respectively
Close and close, the objective attribute target attribute end includes：Receiving terminal, transmitting terminal and earth terminal.
Alternatively, the frequency converter includes：
Obtain the frequency acquisition device of predeterminated frequency value；
Frequency controller, the input of the frequency controller is electrically connected with the output end of the frequency acquisition device, also,
The output end of the frequency controller is electrically connected with the transmitting terminal, to control transmitting terminal to send frequency as the predeterminated frequency value
Electromagnetic wave；
Frequency increases device, and the output end of the frequency increase device is electrically connected with the input of the frequency acquisition device, will
The predeterminated frequency value is added with a preset increase values, and the summation after will add up is as the predeterminated frequency value；
Frequency arbiter, the input of the frequency arbiter is electrically connected with the output end that the frequency increases device, to sentence
Whether the predeterminated frequency value of breaking is more than preset termination frequency values；
Stop element, the input of the stop element is electrically connected with the output end of the frequency arbiter, also, described
The output end of stop element is electrically connected with the transmitting terminal, to be more than the preset termination frequency values in the predeterminated frequency value
When, control transmitting terminal stops sending electromagnetic wave.
Alternatively, described device also includes data obtainer, result getter and alarm；
The input of the data obtainer is electrically connected with receiving terminal, by through the electromagnetic wave of the measurand skull
Scan data is obtained as scanning signal, and according to scanning signal；
The input of the result getter is electrically connected with the output end of the data obtainer, with according to the scanning number
According to acquisition scanning result value；
The input of the alarm is electrically connected with the output end of the result getter, to judge the scanning result value
Whether it is located between the first default alarm value and the second default alarm value；
If the scanning result value is not located between the first default alarm value and the second default alarm value, hair
Go out alarm.
Alternatively, the denoiser includes differential amplifier circuit；
Two inputs of the differential amplifier circuit are connected with the first receiving electrode, the second receiving electrode respectively, institute
It is two electrode slices electrically connected with receiving terminal to state the first receiving electrode and the second receiving electrode；
The electromagnetic wave signal received to first receiving electrode, the second receiving electrode carries out differential amplification processing, with
Realize the noise for the electromagnetic wave signal that reduction receiving terminal is received.
Alternatively, the controller includes：
Mode unit, the mode unit is stored with the mode list pre-set, and the mode list includes multiple moulds
Formula, the pattern includes the attribute information of each electrode slice, and the attribute information includes：Receiving electrode, emission electrode and ground connection
One in electrode；
Target pattern unit, the input of the target pattern unit is electrically connected with the output end of the mode unit, with
A pattern in the mode list is obtained as target pattern；
Connection unit, the input of the connection unit is electrically connected with the output end of the target pattern unit, with basis
The attribute information of each electrode slice in the target pattern, controls each electrode slice to be electrically connected respectively with corresponding quality end.
Alternatively,
The fixing device includes at least one fixing band；
All electrode slices are all disposed within the medial surface of the fixing band；
On the distribution shape of electrode slice and the skull of the measurand at least one fixing band at least
The shape of one skull suture matches.
Alternatively, the fixing band is a plurality of；
It is connected between a plurality of fixing band, the space of skull of the measurand can be accommodated by forming one.
Alternatively,
The fixing band is regulation band that can be sized.
Alternatively, the inner surface of the fixing device is provided with eight electrode slices, wherein, eight electrode slices are divided into four
Electrode slice group, each electrode slice group includes two electrode slices, and four electrode slice groups are in cross symmetrical.
From above technical scheme, electromagnetic wave signal processing unit provided in an embodiment of the present invention, including fixing device,
Controller, frequency converter and denoiser, wherein, the medial surface of fixing device is provided with least four electrodes being electrically connected with the controller
Piece, each electrode slice is electrically connected by controller with any one quality end in receiving terminal, transmitting terminal and earth terminal.It is first
First, Frequency Converter Control transmitting terminal by electromagnetic wave signal from electrode slice to the multiple different frequencies of skull internal emission, then, with connecing
Two electrode slices of receiving end electrical connection receive electromagnetic wave signal, also, reduce the electromagnetic wave that receiving terminal is received using denoiser
The noise of signal.
Therefore, fixing device can be set on the skull of measurand, passed through by the device provided using the present invention, user
The electrode slice transmission signal electrically connected with transmitting terminal, the electrode slice electrically connected with receiving terminal receives signal, obtains measurand big
The detection signal of multiple frequencies in intracerebral portion, also, on the basis of electrode slice and measurand skull contact position is not adjusted,
The quality end that electrode slice is electrically connected is switched by controller, to change signal interior path propagated inside measurand skull,
Realize detection signal inside comprehensive acquisition skull.
In addition, reducing the noise for the electromagnetic wave signal that receiving terminal is received by denoiser, it is possible to decrease noise is believed detection
Number influence, make the detection signal results of acquisition more accurate.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of structural representation of electromagnetic wave signal processing unit provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of fixing device provided in an embodiment of the present invention；
Fig. 3 is the structural representation that a kind of electrode slice provided in an embodiment of the present invention is connected with quality end.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to protection of the present invention
Scope.
Electromagnetic wave propagation speed is inversely proportional with propagating the dielectric constant square root of material, and different material is in transmission same frequency
There are different dielectric constants during the electromagnetic wave of rate, therefore, the speed that identical frequency electromagnetic is propagated in different material is measured
Can indirect identification material species.For example, when transmitting certain frequency electromagnetic, the dielectric constant of water is 80, the dielectric constant of blood
For 130, and the dielectric constant of biological tissue, such as brain tissue is 100, thus can substantially distinguish water, blood and brain tissue.
Received in user by receiving terminal C after the electromagnetic wave transmitted in cranial cavity, using the electromagnetism wave number received
According to the situation of brain tissue in analysis cranial cavity, and with the presence or absence of ponding or hemotoncus etc. in analysis cranial cavity.
Fig. 1 is a kind of structural representation of electromagnetic wave signal processing unit provided in an embodiment of the present invention, for tested
The skull of object is detected that the device includes fixing device 1, controller 3, frequency converter 4 and denoiser 5.
Wherein, the inner surface of fixing device 1 is provided with least four electrode slices 2, and each electrode slice 2 is led by one
Line is electrically connected with controller 3, and each electrode slice 2 is electrically connected with controller 3.
In one particular embodiment of the present invention, electrode slice 2 can be fixed on fixation by way of pasting or suturing
On device 1, the inner side of fixing device 1 can also be embedded in by embedded mode, no matter using which kind of set-up mode, as long as making
Fixing device 1 is exposed in one side surface of electrode slice 2, so that when fixing device 1 is set in outside object under test, each
Electrode slice 2 can directly be contacted with object under test.For example, fixing device 1 can be set in outside human skull, each electrode slice
2 can be with the direct skin contact at human skull.
The shape of at least one skull suture on the distribution shape of electrode slice 2 and the skull of measurand matches.
Another embodiment that Fig. 2 provides for the present invention, as shown in Fig. 2 fixing device 1 includes at least one fixing band,
All electrode slices 2 are all disposed within the medial surface of fixing band；Also, the distribution shape of the electrode slice 2 at least one fixing band
Match with the shape of at least one skull suture on the skull of measurand.
Because the main load unit of skull suture is collagenous fibres, compared to the bony structures of skull, skull suture is to electromagnetic wave
Obstruction degree is less than the degree that skull is hindered electromagnetic wave.So, some electrode slice 2 and transmitting terminal B electricity in fixing band
During connection, the electromagnetic wave signal intensity entered through the electrode in cranial cavity is larger；Some electrode slice 2 in fixing band is in reception
When holding C electrical connections, the electromagnetic wave signal intensity inside process cranial cavity received through the electrode is also larger.
Therefore, when the skull suture on the distribution shape of electrode slice 2 and the skull of measurand in fixing band is matched,
Receiving terminal C can be made to receive the bigger electromagnetic wave signal of intensity.
To make the shape of at least one skull suture on the distribution shape of electrode slice 2 and the skull of measurand in fixing band
Shape matches, and fixing device 1 can be arranged into following form：Fixing band formation one closes and can be set in measurand cranium
Ring-type on bone, two supports are provided with the corresponding both sides of fixing band；One end of each support is electrically connected with fixing band,
The other end is provided with arc earpiece.The shape of the shape of arc earpiece and human ear gabarit matches, also, arc earpiece card holder
When in human ear, the skull suture on the distribution shape of fixing band Top electrode piece 2 and the skull of measurand matches.
Or, fixing device 1 includes being electrically connected between a plurality of fixing band, a plurality of fixing band, and forming one can accommodate
The space of the skull of measurand, when fixing device 1 is set on the skull of measurand, point of fixing band Top electrode piece 2
Skull suture on the skull of cloth shape and measurand matches.
Also, the fixing band in fixing device 1 can be flexible elastic webbing, or can be sized tune
Band is saved, is easy to fixing device 1 being set in outside the skull of different measurands, enables the electrode slice 2 of the inner side of fixing device 1
Contacted with the skin outside measurand skull.
Controller 3 is electrically connected with quality end, and quality end includes receiving terminal, transmitting terminal and earth terminal；Each electrode slice 2 with
A controlling switch is all respectively arranged between all properties end, controller 3 controls to control between each electrode slice 2 and quality end
What is switched opens or closes.
As shown in figure 3, wherein, the controlling switch closure between any two electrode slice 2 and receiving terminal, and with earth terminal,
Controlling switch between transmitting terminal is opened；Between any one electrode slice 2 and earth terminal controlling switch closure, and with transmitting
Controlling switch between end, receiving terminal is opened；Controlling switch closure between any one electrode slice 2 and transmitting terminal, and with connecing
Controlling switch between ground terminal, receiving terminal is opened.I.e., it is ensured that in multiple electrodes piece, two electrode slices 2 are electrically connected with receiving terminal
Connect, there is an electrode slice 2 to be electrically connected with earth terminal, there is an electrode slice 2 to be electrically connected with transmitting terminal.
In one particular embodiment of the present invention, controller 3 includes control signal receiving terminal, attribute information acquisition circuit
With control circuit, wherein：
Control signal receiving terminal, for receiving objective attribute target attribute control signal, the objective attribute target attribute control signal can be outside
The electric signal that the electric signal or controller 3 of controller 3 are sent itself is sent to, also, in objective attribute target attribute control signal
The target property information of each electrode slice 2 is carried, target property information includes：In receiving electrode, emission electrode and grounding electrode
One.
Attribute information obtains circuit, and the output end that attribute information obtains the input and control signal receiving terminal of circuit is electrically connected
Connect, for according to the target property information that each electrode slice 2 is obtained in objective attribute target attribute control signal.
Circuit is controlled, controls the input of circuit to be electrically connected with the output end that attribute information obtains circuit, for according to every
The target property information of individual electrode slice 2, controls each electrode slice 2 to be electrically connected respectively with corresponding objective attribute target attribute end, target category
Property end includes：Receiving terminal, transmitting terminal and earth terminal.Any one electrode slice 2 is electrically connected with an objective attribute target attribute end simultaneously.
As shown in figure 3, controller 3 is electrically connected with quality end, quality end includes receiving terminal C, transmitting terminal B and earth terminal A, its
In, transmitting terminal B is used for outside transmission signal, such as electromagnetic wave signal；Receiving terminal C is used to receive signal, for example, receiving transmitting
The electromagnetic wave that end B is launched, receiving end C is received after the electromagnetic wave is transmitted through object under test；Earth terminal A is used to ensure determinand
The safety of body, it is to avoid object under test gets an electric shock when receiving the electric current of larger voltage.
A controlling switch (not marked in figure) is respectively arranged between each electrode slice 2 and all properties end, i.e.
Electrically connected between each electrode slice 2 and all properties end by a controlling switch.For example, some electrode slice 2 and hair
Penetrate between end B, receiving terminal C and earth terminal A and be respectively arranged with a controlling switch, the control between the electrode slice 2 and transmitting terminal B
During system switch closure, the electrode slice 2 is connected with transmitting terminal B, so that the electromagnetic wave that transmitting terminal B is launched can be by the electrode slice 2
Outwards the controlling switch between transmitting electromagnetic wave, also, the electrode slice 2 and receiving terminal C, earth terminal A is opened, i.e. any one
Electrode slice 2 is only electrically connected with a quality end simultaneously.
Also, the quality end electrically connected by the changeable each electrode slice 2 of controller 3.One in the present invention is specific
In embodiment, multiple knobs are provided with controller 3, each knob one electrode slice 2 of correspondence.For each knob,
A control signal is sent to corresponding all controlling switches when being rotated to preset gear, each controlling switch is believed according to control
Number closure or open.
In the manner described above, the electrical connection of each electrode slice 2 and any one quality end can be realized, thus, can be not
Electrode slice 2 is adjusted with the basis of the skull contact position of measurand, changing propagation path of the electromagnetic wave in cranial cavity, working as electricity
When the quantity of pole piece 2 is more, using the device in the present embodiment, electromagnetic wave propagation path can be made to cover whole cranial cavity, comprehensive,
Three-dimensionally obtain transmission signal of the electromagnetic wave in cranial cavity.
Any one electrode slice 2 and transmitting terminal B between controlling switch close, and between receiving terminal C, earth terminal A
Controlling switch open, i.e. an electrode slice 2 in multiple electrodes piece 2 is electrically connected with transmitting terminal B；Any two electrode slice 2 with
Receiving terminal C between controlling switch closure, and controlling switch between transmitting terminal B, earth terminal A opens, i.e. multiple electrodes
Two electrode slices 2 in piece 2 are electrically connected with receiving terminal C；Any one electrode slice 2 and earth terminal A between controlling switch close
Close, and the controlling switch between transmitting terminal B, receiving terminal C is opened, i.e. an electrode slice 2 and ground connection in multiple electrodes piece 2
Hold A electrical connections.
Any one electrode slice 2 is only electrically connected with a quality end simultaneously, has more than four electrode slices in fixing device 1
During 2 situation, for example, fixing device 1 has eight electrode slices 2, four electrode slices 2 can be arbitrarily chosen in eight electrode slices 2
As the electrode slice 2 electrically connected with transmitting terminal B, receiving terminal C and earth terminal A, electrode slice 2 is chosen with different combinations, you can structure
The different propagation path of electromagnetic wave is built, makes electromagnetic wave by multiple propagation paths to reach the purpose inside the whole skull of covering.
The output end of frequency converter 4 is electrically connected with transmitting terminal, to control transmitting terminal outwards to launch the electromagnetism of multiple different frequencies
Ripple signal；
In one particular embodiment of the present invention, frequency converter 4 includes following part：
Frequency acquisition device, can obtain predeterminated frequency value, for example, 20KHz.
Frequency controller, the input of frequency controller is electrically connected with the output end of frequency acquisition device, also, FREQUENCY CONTROL
The output end of device is electrically connected with transmitting terminal, to control transmitting terminal to send electromagnetic wave of the frequency as predeterminated frequency value, makes the frequency
Electromagnetic wave scans the skull of measurand.
Frequency increases device, and the output end of frequency increase device is electrically connected with the input of frequency acquisition device, can be by default frequency
Rate value is added with a preset increase values, and the summation after will add up is as predeterminated frequency value.One in the present invention is specific
In embodiment, often after transmitting terminal launches a frequency to measurand skull for the electromagnetic wave of predeterminated frequency value, by this
Predeterminated frequency value increases a preset increase values.Or, frequency increase utensil has clocking capability, often will after process preset time
Predeterminated frequency value increases a preset increase values.
Frequency arbiter, the input of frequency arbiter is electrically connected with the output end that frequency increases device, to judge default frequency
Whether rate value is more than preset termination frequency values.For example, preset termination frequency values are 100KHz.
Stop element, the input of stop element is electrically connected with the output end of frequency arbiter, also, stop element is defeated
Go out end to electrically connect with transmitting terminal, when predeterminated frequency value is more than preset termination frequency values, control transmitting terminal stops sending electromagnetic wave.
In one particular embodiment of the present invention, a predeterminated frequency value can be set first, for example, 10KHz, by becoming
The transmitting terminal B electromagnetic waves launched are adjusted to the predeterminated frequency value by frequency device 4, and are connect by the electrode slice 2 electrically connected with receiving terminal C
The electromagnetic wave after the adjustment frequency is received, then, above-mentioned predeterminated frequency value is added with a preset increase values, for example, 10KHz,
And the summation after both are added, as the predeterminated frequency value of frequency converter 4 next time, frequency converter 4 continues according to the pre- of the new acquisition
If the frequency of frequency values adjustment transmitting electromagnetic wave, when predeterminated frequency value is more than a preset termination frequency values, stops to be pre-
If frequency values increase preset increase values, so as to obtain the electromagnetic wave signal under multiple frequencies.
In another embodiment of the present invention, the device in above-described embodiment also includes data obtainer, result acquisition
Device and alarm.
The input of data obtainer is electrically connected with the output end of receiving terminal, by through the electromagnetic wave of measurand skull
Scan data is obtained as scanning signal, and according to scanning signal.In one particular embodiment of the present invention, scan data is
The scanning signal is transferred to data obtainer, data obtainer is to sweeping by impedance value, receiving terminal after scanning signal is received
Retouch signal and carry out analog-to-digital conversion, scanning signal is converted into data signal, also, carried out repeatedly in a data processing cycle
Analog-to-digital conversion, such as 100 times, finally averages；Then discrete Fourier transform (DFT, Discrete Fourier is used
Transform) algorithm process, obtains a real part data value and an imaginary data value for each scanning signal, calculates
Impedance value.
As a result the input of getter is electrically connected with the output end of data obtainer, to obtain scanning knot according to scan data
Fruit is worth.In one particular embodiment of the present invention, adding with average value as scanning result value for all scan datas can be obtained.
For example, after transmitting terminal stops electromagnetic signals, as a result getter is obtained based on sweeping that each predeterminated frequency value is obtained
Data are retouched, the summation of all scan datas is calculated and obtains the average value of summation, regard this average value as scanning result value.Example
Such as, all scan datas are 320,300,290,240,210,205,180,175,160,150, calculate the flat of all scan datas
It is 223 to be worth to scanning result value.
The input of alarm is electrically connected with the output end of result getter, to judge whether scanning result value is located at first
Between default alarm value and the second default alarm value.If scanning result value is not located at the first default alarm value and the
Between two default alarm values, alarm is sent, wherein, the first default alarm value is more than the second default alarm value, for example,
First default alarm value is 360, and the second default alarm value is that the scanning result value obtained in 280, above-described embodiment is 223, no
In number range between 360 and 280, then alarm is sent.
First default alarm value and the second default alarm value obtain can user obtained by test of many times, example
Such as, user learns through test of many times, generally there are ponding when scanning result value is more than 360 in cranium brain, or, scanning result value is less than
Hemotoncus is generally there are when 280 in cranium brain, therefore, can whether normal in automatic decision cranium brain after two fiducial values are set, such as
It is really abnormal, alarm.
Denoiser 5 is arranged between receiving terminal and controller 3, and the input of denoiser 5 is respectively with being connected the two of receiving terminal
Individual electrode slice is electrically connected, also, the output end of the denoiser 5 is electrically connected with the receiving terminal, is sent to reducing electrode slice 2
The noise of the electromagnetic wave signal of receiving terminal.
In one particular embodiment of the present invention, denoiser 5 includes differential amplifier circuit；
Wherein, two inputs of differential amplifier circuit are electrically connected with the first receiving electrode, the second receiving electrode respectively,
First receiving electrode and the second receiving electrode are two electrode slices 2 electrically connected with receiving terminal, and the first receiving electrode, second are connect
The electromagnetic wave signal progress differential amplification processing that electrode is received is received, to realize the electromagnetic wave signal that reduction receiving terminal is received
Noise.
First receiving electrode and the second receiving electrode, are sent out for receiving by the emission electrode set in measurand cranium brain
The electromagnetic wave signal penetrated.The electromagnetic wave signal that signal generator is launched by emission electrode to measurand cranium brain, this electromagnetic wave
After signal is by measurand cranium brain, by the first receiving electrode and the second receiving electrode are come the electricity of the process measured target to transmitting
Magnetostatic wave signal is received.
, may be due to objective factor (such as artificial attended operation mistake when signal generator electromagnetic signals
Difference) or external environment condition influence, make to load interference signal or interference noise on the electromagnetic wave signal of transmission, and then influence to pass through
The accuracy of the electromagnetic wave signal received after measured target.
In order to reduce interference signal or interference noise to the influence of the electromagnetic wave signal received, using the original of differential transfer
Reason, if the signal amplitude that differential transfer is transmitted on two transmission lines is equal, opposite in phase, then on this two transmission lines
The signal of transmission is exactly differential signal.The characteristics of differential signal has strong antijamming capability, therefore, it is possible to effectively suppress electromagnetism
Interference or interference noise, and then improve the signal to noise ratio of amplifier system.
In another embodiment of the present invention, controller 3 includes following components：
Mode unit, mode unit is stored with the mode list pre-set, and mode list includes multiple patterns, pattern bag
The attribute information of each electrode slice 2 is included, attribute information includes：One in receiving electrode, emission electrode and grounding electrode；
Target pattern unit, the input of target pattern unit is electrically connected with the output end of mode unit, for obtaining
A pattern in mode list is used as target pattern；
Connection unit, the input of connection unit is electrically connected with the output end of target pattern unit, for according to target mould
The attribute information of each electrode slice 2 in formula, controls each electrode slice 2 to be electrically connected respectively with corresponding quality end, and any one
Individual electrode slice 2 is electrically connected with a quality end simultaneously.
In the present embodiment, all patterns in mode list are respectively as target pattern, according to each target pattern
In corresponding relation electrically connect each electrode slice 2 and corresponding quality end, also, obtain in each target pattern with receiving terminal
The electrode slice 2 of electrical connection sends the result data of receiving terminal to.The electrode slice 2 electrically connected in a pattern is obtained with receiving terminal
After sending the result of receiving terminal to, then target pattern is changed, make electrode slice 2 according to next target pattern and corresponding attribute
End electrical connection.
Mode list is as shown in the table：
Wherein, under the pattern that numbering is 01, first electrode piece is electrically connected with transmitting terminal B, second electrode piece and receiving terminal C electricity
Connection, the 3rd electrode slice is electrically connected with receiving terminal C, and the 4th electrode slice is electrically connected with earth terminal A.It is similar with above-mentioned connected mode,
Under the connection mode that numbering is 02, each electrode slice 2 is electrically connected with a quality end respectively.
A scan button is provided with controller 3, when scan button is pressed, controller 3 can control each
Individual electrode slice 2 is electrically connected according to all patterns in mode unit with quality end successively.For example, pressing scan button in user
When, controller 3 controls each electrode slice 2 according to the pattern listed in mode unit, is electrically connected respectively with corresponding quality end
Connect, all patterns is realized.Thus, receiving terminal can obtain multiple electromagnetic wave signals based on above-mentioned multiple patterns.
In another embodiment of the present invention, the inner side of fixing device 1 is provided with eight electrode slices 2, wherein, eight electrodes
2 points of piece is four electrode slice groups, and each electrode slice group includes two electrode slices 2, and four electrode slice groups are in cross symmetrical point
Cloth.
User is in application device proposed by the present invention, in addition to it can realize the function in above-described embodiment, moreover it is possible to
It is enough by making any one electrode slice 2 in four groups of electrode slice groups be electrically connected with quality end, another electrode slice 2 not with quality end
The mode of connection, is received through the electromagnetic wave signal in measurand cranial cavity, for example, making four electrode slices electrically connected with quality end
2 intersect the inconsistent cross distribution of line length and asymmetric cross distribution etc. in cross distribution, two, to reach preferably
Detection results.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
Individual entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operate it
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include those
Key element, but also other key elements including being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in the process including the key element, method, article or equipment.
Described above is only the embodiment of the present invention, is made skilled artisans appreciate that or realizing this hair
It is bright.A variety of modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
1. a kind of electromagnetic wave signal processing unit, is detected, it is characterised in that described device for the skull to measurand
Including fixing device, controller, frequency converter and denoiser；
Wherein, the inner surface of the fixing device is provided with least four electrode slices, and each electrode slice is electrically connected with controller
Connect；The distribution shape of the electrode slice and the shape of at least one skull suture on the skull of the measurand match；
The controller is electrically connected with quality end, and the quality end includes receiving terminal, transmitting terminal and earth terminal；Each electrode slice
A controlling switch is all respectively arranged between all properties end；Controller controls to control between each electrode slice and quality end
What is switched opens or closes；
Wherein, the controlling switch closure between any two electrode slice and receiving terminal, and the control between earth terminal, transmitting terminal
Switch is opened；Controlling switch closure between any one electrode slice and earth terminal, and the control between transmitting terminal, receiving terminal
Switch is opened；Controlling switch closure between any one electrode slice and transmitting terminal, and the control between earth terminal, receiving terminal
Switch is opened；
The output end of the frequency converter is electrically connected with transmitting terminal, to control transmitting terminal outwards to launch the electromagnetic wave of multiple different frequencies
Signal；
The input of the denoiser is electrically connected with being connected two electrode slices of receiving terminal respectively, and the output end of the denoiser
Electrically connected with the receiving terminal, to reduce the noise that electrode slice is sent to the electromagnetic wave signal of receiving terminal；
The denoiser includes differential amplifier circuit；
Two inputs of the differential amplifier circuit are connected with the first receiving electrode, the second receiving electrode respectively, and described
One receiving electrode and the second receiving electrode are two electrode slices electrically connected with receiving terminal；
The electromagnetic wave signal received to first receiving electrode, the second receiving electrode carries out differential amplification processing, to realize
The noise for the electromagnetic wave signal that reduction receiving terminal is received.
2. device according to claim 1, it is characterised in that the controller includes：
Receive the control signal receiving terminal of objective attribute target attribute control signal；
Attribute information obtains circuit, and the attribute information obtains the input of circuit and the output end of the control signal receiving terminal
Electrical connection, to obtain the target property information of each electrode slice, the objective attribute target attribute letter according to the objective attribute target attribute control signal
Breath includes：One in receiving electrode, emission electrode and grounding electrode；
Circuit is controlled, the input of the control circuit is electrically connected with the output end that the attribute information obtains circuit, with basis
The target property information of each electrode slice, controls the controlling switch between each electrode slice and corresponding objective attribute target attribute end to close respectively
Close, the objective attribute target attribute end includes：Receiving terminal, transmitting terminal and earth terminal.
3. device according to claim 1, it is characterised in that the frequency converter includes：
Obtain the frequency acquisition device of predeterminated frequency value；
Frequency controller, the input of the frequency controller is electrically connected with the output end of the frequency acquisition device, and the frequency
The output end of rate controller is electrically connected with the transmitting terminal, to control transmitting terminal to send electromagnetism of the frequency as the predeterminated frequency value
Ripple；
Frequency increases device, and the output end of the frequency increase device is electrically connected with the input of the frequency acquisition device, will be described
Predeterminated frequency value is added with a preset increase values, and the summation after will add up is as the predeterminated frequency value；
Frequency arbiter, the input of the frequency arbiter is electrically connected with the output end that the frequency increases device, to judge
State whether predeterminated frequency value is more than preset termination frequency values；
Stop element, the input of the stop element is electrically connected with the output end of the frequency arbiter, also, the stopping
The output end of unit is electrically connected with the transmitting terminal, when the predeterminated frequency value is more than the preset termination frequency values, to control
Transmitting terminal processed stops sending electromagnetic wave.
4. device according to claim 3, it is characterised in that described device also includes data obtainer, result getter
And alarm；
The input of the data obtainer is electrically connected with receiving terminal, using through the electromagnetic wave of the measurand skull as
Scanning signal, and scan data is obtained according to scanning signal；
The input of the result getter is electrically connected with the output end of the data obtainer, to be obtained according to the scan data
Take scanning result value；
The input of the alarm is electrically connected with the output end of the result getter, whether to judge the scanning result value
Between the first default alarm value and the second default alarm value；
If the scanning result value is not located between the first default alarm value and the second default alarm value, police is sent
Report.
5. device according to claim 1, it is characterised in that the controller includes：
Mode unit, the mode unit is stored with the mode list pre-set, and the mode list includes multiple patterns, institute
The attribute information that pattern includes each electrode slice is stated, the attribute information includes：In receiving electrode, emission electrode and grounding electrode
One；
Target pattern unit, the input of the target pattern unit is electrically connected with the output end of the mode unit, to obtain
A pattern in the mode list is used as target pattern；
Connection unit, the input of the connection unit is electrically connected with the output end of the target pattern unit, with according to described
The attribute information of each electrode slice in target pattern, controls each electrode slice to be electrically connected respectively with corresponding quality end.
6. device according to claim 1, it is characterised in that
The fixing device includes at least one fixing band；
All electrode slices are all disposed within the medial surface of the fixing band；
The distribution shape of electrode slice at least one fixing band and at least one on the skull of the measurand
The shape of skull suture matches.
7. device according to claim 6, it is characterised in that the fixing band is a plurality of；
It is connected between a plurality of fixing band, the space of skull of the measurand can be accommodated by forming one.
8. the device according to claim 6 or 7, it is characterised in that
The fixing band is regulation band that can be sized.
9. device according to claim 1, it is characterised in that the inner surface of the fixing device is provided with eight electrodes
Piece, wherein, eight electrode slices are divided into four electrode slice groups, and each electrode slice group includes two electrode slices, four electrode slice groups
In cross symmetrical.
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| CN104757971B (en) * | 2015-04-15 | 2017-01-25 | 重庆博恩富克医疗设备有限公司 | Signal detection device and method |
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| CN102525458B (en) * | 2012-02-27 | 2013-11-06 | 重庆博恩富克医疗设备有限公司 | Device for monitoring hydrocephalus and encephaledema |
| CN102920453A (en) * | 2012-10-29 | 2013-02-13 | 泰好康电子科技（福建）有限公司 | Electroencephalogram signal processing method and device |
| CN104274210B (en) * | 2014-09-24 | 2017-05-31 | 广州三星通信技术研究有限公司 | Fetal heart monitor and fetal rhythm monitoring method |
| CN204683596U (en) * | 2015-04-15 | 2015-10-07 | 重庆博恩富克医疗设备有限公司 | A kind of electromagnetic wave signal blood processor |
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