CN105962903B - A kind of wearable rehabilitation state monitor - Google Patents
A kind of wearable rehabilitation state monitor Download PDFInfo
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- CN105962903B CN105962903B CN201610586777.XA CN201610586777A CN105962903B CN 105962903 B CN105962903 B CN 105962903B CN 201610586777 A CN201610586777 A CN 201610586777A CN 105962903 B CN105962903 B CN 105962903B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
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Abstract
In order to improve the processing accuracy of rehabilitation training signal, reduce the noise wherein mixed, the present invention provides a kind of wearable rehabilitation state monitors, it include: flexible band, rehabilitation information detecting apparatus, communication unit and remote rehabilitation information monitoring server, wherein the rehabilitation information detecting apparatus and the communication unit are fixed on person's body to be monitored by the flexible band in wearable mode.The present invention can be avoided the aliasing and interference for pumping signal occur to electromyography signal, greatly improve the defect that existing rehabilitation training situation relies primarily on artificial judgment, be conducive to long-range rescue center understand in time rehabilitation training personnel at home or other the quick response for needing rescue situations is not occurred by the occasion of on-site supervision.
Description
Technical field
The present invention relates to the signal processing technology fields of rehabilitation training condition monitoring device, can more particularly, to one kind
Dress rehabilitation state monitor.
Background technique
The most attention of researcher and medical institutions has been obtained in the country such as America and Europe for healing robot technology, than
More typical is that MIT design in 1991 completes First upper-limbs rehabilitation training robot system MIT-MANUS, which uses
Five-bar mechanism, terminating impedance is smaller, using impedance control realize training safety, stability and ride comfort, it have 2 from
By spending, shoulder, the elbow movement of paralytic are helped.Another upper-limbs rehabilitation training robot system is MIME, and the equipment is smooth by this
Good fortune university research personnel design, manipulates patient's suffering limb using industrial robot PUMA-560, can both provide plane fortune
Dynamic training can also make three-dimensional motion training.Patient forearm is clamped with clamping plate, and six-axis force sensor, pneumatic mistake are housed on clamping plate
It carries and disconnects sensor and quickly connect/disconnect mechanism.In China, the colleges and universities such as Tsinghua University are also actively being studied.
Currently, the robot of rehabilitation training purposes has gradually formed the mechanism of remote supervisory and guidance, that is, usually with electrode
The muscle signals and/or electromyography signal that acquisition is fed back after excitation are target, and the monitoring client where being sent to distal end director carries out
Monitoring and guidance.However, being inevitably contaminated with the generation such as physiological function, metabolism of human normal in the signal that feedback obtains
Noise, also, when stimulation muscle and inducing myoelectric potential occur and the position of stimulating electrode and recording electrode is close simultaneously
When, electromyography signal is mixed with the interference of pumping signal, influences whether the acquisition precision of signal.
Summary of the invention
In order to obtain the accurate signal for indicating rehabilitation training state, the present invention from healing robot in rehabilitation training
Provide a kind of wearable rehabilitation state monitor, flexible band, rehabilitation information detecting apparatus, communication unit and remote rehabilitation
Information monitoring server, wherein the flexible band is by the rehabilitation information detecting apparatus and the communication unit with wearable
Mode is fixed on person's body to be monitored, and the rehabilitation information detecting apparatus is used to meet predetermined identity item when the flag information
The detection of rehabilitation training and rehabilitation information is powered and carried out when part, and the communication unit is for setting the rehabilitation infomation detection
The detection information of standby output is transferred to the remote rehabilitation information monitoring server, and the remote rehabilitation information monitoring server is used
Rescue information is requested in issuing according to the detection information received to First aid station.
Further, the rehabilitation information detecting apparatus includes: to set for carrying out the rehabilitation training of rehabilitation training and exercise
Rehabilitation training detection device standby and for detecting rehabilitation training signal in the recovery and exercise routine, the rehabilitation training
Equipment include by excitation electrode to by excitation position emission electrode pumping signal electrode excitation signal generation unit and adopt
Collect the myoelectricity response signal acquisition unit of the response as the electrode excitation signal, the rehabilitation training detection device includes: sharp
Encourage remaining removal signal element, signal detection mode matching unit, amplification channel switch arrays, the first filter unit and the second filter
Wave unit, wherein the remaining removal signal element of the excitation, the signal detection mode matching unit, amplification channel switch
Array, first filter unit and second filter unit are in sequential series.
Further, the remaining removal signal element of the excitation is used to eliminate the pumping signal in electromyographic signal collection unit
Interference components, comprising: electrode excitation signal characteristic spectrum generating unit, electromyography signal frequency spectrum generation unit, delay determination unit,
Delay unit, subtractor circuit, wherein the electrode excitation signal characteristic spectrum generating unit is generated in the electrode excitation signal
The prearranged signals frequency spectrum of specific incentives signal characteristic, the letter are attached on the basis of the electrode excitation signal that generation unit generates
Number frequency spectrum is input into the delay determination unit, and the delay determination unit is used for the period according to the prearranged signals frequency spectrum
Property feature determines the phase difference between the frequency spectrum for the electrode excitation signal that it is generated with the electrode excitation signal generation unit, and
According to the phase difference determine the electrode excitation signal generation unit to by excitation position generate electrode excitation signal after with it is described
Electromyographic signal collection unit collects the time difference between response signal, and the delay unit is according to the time difference to the electrode
The electrode excitation signal that excitation signal generation unit generates is delayed, and the signal obtained after delay is adopted with the electromyography signal
The collection collected myoelectricity response signal of unit is input to the subtractor circuit jointly, thus by the electrode excitation signal described
Remnants in myoelectricity response signal are removed from the myoelectricity response signal.
Further, the prearranged signals frequency spectrum is the frequency spectrum of the square-wave signal with 2 seconds.
Further, the signal detection mode matching unit includes: at mode memory, spectral analysis unit and data
Device is managed, the mode memory is stored with the frequency spectrum with the one-to-one electrode excitation signal of the various modes of rehabilitation training signal
The First Eigenvalue, the spectral analysis unit is used for the electrode excitation signal that generates the electrode excitation signal generation unit
It is transformed to frequency spectrum and determines the Second Eigenvalue of the frequency spectrum, the Second Eigenvalue is identical as the fisrt feature Value Types, institute
It states data processor and searches the Second Eigenvalue in the mode memory, and determine matching the First Eigenvalue pair
The mode answered.
Further, the First Eigenvalue and the Second Eigenvalue are spectrum density.
Further, the amplification channel switch arrays include that multiple controllable switches and amplifier connected in series are constituted
Switch arrays and channel status memory, the input terminal of each amplifier in the switch arrays are sent out with to by excitation position
Each excitation electrode of radio pole excitation signal concatenates correspondingly, the channel status memory for store with it is described more
Optimized switch state of the one-to-one each excitation electrode of kind mode under each mode, the switch arrays are according to
The mode that signal detection mode matching unit determines is searched corresponding with the mode each sharp from the channel status memory
The optimized switch state of electrode in this mode is encouraged, and controls the switch state of each controllable switch in the switch arrays.
Further, the optimized switch state is each to disconnecting and/or being closed according to various rehabilitation training modes once
Relationship between the signal-to-noise ratio of the myoelectricity response signal obtained after a controllable switch determines.
Further, first filter unit is bandpass filter, and lower limiting frequency and upper cut off frequency are respectively
5Hz and 1800Hz.
Further, second filter unit include: 6.84k Ω resistance, 19.73k Ω resistance, 9.75k Ω resistance,
14.3k Ω resistance, 5.13k Ω resistance, 10.94k Ω resistance, 1.73k Ω resistance, 3.91k Ω resistance, 2.8k Ω resistance, 5k Ω
Resistance, 2k Ω resistance, the first 1k Ω resistance, the first 2.5k Ω resistance, the first 2.2k Ω resistance, the 2nd 2.2k Ω resistance, second
1k Ω resistance, 9.31k Ω resistance, 2.32k Ω resistance, 4.2k Ω resistance, 4.8k Ω resistance, the 2nd 2.5k Ω resistance, 0.27uF
Capacitor, 0.22uF capacitor, the first 0.31uF capacitor, 0.33uF capacitor, 0.38uF capacitor, 0.82uF capacitor, 6.8uF capacitor,
0.57uF capacitor, the 2nd 0.31uF capacitor, 0.12uF capacitor, 2uF capacitor, the first 0.8uF capacitor, the 2nd 0.8uF capacitor, first
0.35uF capacitor, the 2nd 0.35uF capacitor, the 3rd 0.31uF capacitor, 0.47uF capacitor, the first operational amplifier, the second operation are put
Big device, third operational amplifier, four-operational amplifier, the 5th operational amplifier, the 6th operational amplifier, the 7th operation amplifier
Device, the first Zener diode, the second Zener diode, third Zener diode, the 4th Zener diode, two pole of the 5th Zener
Pipe, the 6th Zener diode, the 7th Zener diode, the first subtractor circuit and the second subtractor circuit, wherein the 6.84k
The first end of Ω resistance is separately connected the first end at input signal end and 2.8k Ω resistance, and the second of the 6.84k Ω resistance
End connects the first end of the 19.73k Ω resistance, and the second end of the 19.73k Ω resistance is separately connected first operation and puts
The big positive input terminal of device and the first end of the 0.22uF capacitor, the second end ground connection of the 0.22uF capacitor, the 19.73k
The first end of Ω resistance is also connected with the first end of the 0.27uF capacitor, the second end connection described first of the 0.27uF capacitor
The output end of operational amplifier, the first end of 2uF capacitor, the first end and the first operational amplifier of the 9.75k Ω resistance
Negative input end, the second end of the 9.75k Ω resistance connects with the first end of the 14.3k Ω resistance, the 14.3k Ω electricity
The second end of resistance is separately connected the positive input terminal of the second operational amplifier and the first end of the first 0.31uF capacitor, institute
The second end ground connection of the first 0.31uF capacitor is stated, the first end of the 14.33k Ω resistance is also connected with the of the 0.33uF capacitor
One end, the second end of the 0.33uF capacitor connect the output end of the second operational amplifier, the first end of 2uF capacitor, institute
State the first end of 5.13k Ω resistance and the negative input end of second operational amplifier, the second end difference of the 2.8k Ω resistance
Connect the first of the first end of the 2nd 0.31uF capacitor, the first end of the 0.12uF capacitor and the 4.2k Ω resistance
End, the second end ground connection of the 4.2k Ω resistance, the second end of the 0.12uF capacitor are separately connected the third operation amplifier
The first end of the negative input end of device and the 4.8k Ω resistance, the second end of the 2nd 0.31uF capacitor are separately connected described
The anode of the output end and the first Zener diode of the second end of 4.8k Ω resistance and the third operational amplifier, described
The cathode of Zener diode connects the positive input terminal of second subtractor circuit, the output end connection of second subtractor circuit
The second end of the first 1k Ω resistance and the first end of the 2nd 0.8uF capacitor, the third operational amplifier it is just defeated
Enter end connection DC voltage, the second end of the 2uF capacitor is separately connected the positive input terminal of the four-operational amplifier, output
The first end at end, the first end of the first 1k Ω resistance and 5k Ω resistance, the second end connection the described 4th of the 5k Ω resistance
The output end of the negative input end of operational amplifier, the four-operational amplifier is also connected with the anode of the second Zener diode, institute
The cathode for stating the second Zener diode is separately connected the first end of the 5.13k Ω resistance and the first end of the 2k Ω resistance,
The output end of the third operational amplifier is also respectively connected with the cathode of the third Zener diode, the first 0.8uF capacitor
The anode of the first end of first end and the first 2.5k Ω resistance, the third Zener diode is separately connected described first
The anode of Zener diode, the first end of the 2nd 0.8uF capacitor, the anode of the 4th Zener diode, the first 1k Ω resistance
Two ends, the first end of the 2nd 1k Ω resistance, the first end of the 2nd 2.2k Ω resistance, the second end point of the first 2.5k Ω resistance
Do not connect the second end of the 2k Ω resistance and the second end of the 5.13k Ω resistance and the 5th Zener diode cathode and
The first end of the first 2.2k Ω resistance, the anode of the 4th Zener diode, the second end of the first 0.8uF capacitor,
It is the second end of two 0.8uF capacitors, the second end of the 2nd 1k Ω resistance, the second end of the first 0.35uF capacitor, described
The second end of 2nd 0.35uF capacitor, the cathode of the 6th Zener diode are grounded, the second end of the 2nd 2.2k Ω resistance
Be separately connected the first end of the 2nd 0.35uF capacitor, the anode of the 6th Zener diode, the 7th Zener diode anode,
The second end of the first 2.2k Ω resistance is separately connected the first end of the first 0.35uF capacitor, the 7th Zener diode
The first end of cathode and 9.31k Ω resistance, the second end of the 5.13k Ω resistance are separately connected the negative of the 5th Zener diode
The first end of pole, the first end of the 10.94k Ω resistance and the 0.82uF capacitor, the second of the 10.94k Ω resistance
End is separately connected the first end of the positive input terminal of the 5th operational amplifier, 0.38uF capacitor, the second end of the 0.38uF capacitor
Ground connection, the second end of the 0.82uF capacitor are separately connected the output end of the 5th operational amplifier, the 1.73k Ω resistance
First end, the negative input end of the 5th operational amplifier and the anode of the 5th Zener diode, the 1.73k Ω
The second end of resistance is separately connected the first end of the 3.91k Ω resistance and the first end of the 6.8uF capacitor, described
The second end of 3.91k Ω resistance is separately connected the positive input terminal of the 6th operational amplifier and the first end of 0.57uF capacitor, described
The second end of 0.57uF capacitor is grounded, and the second end of the 6.8uF capacitor is separately connected the output of the 6th operational amplifier
The negative input end at end, the negative input end of first subtractor circuit and the 6th operational amplifier, the 9.31k Ω resistance
Second end be separately connected the first end of the 0.47uF capacitor, the first end and 2.32k Ω of the 3rd 0.31uF capacitor
The first end of resistance, the second end ground connection of the 2.32k Ω resistance, the second end of the 3rd 0.31uF capacitor are separately connected institute
State the negative input end of the 7th operational amplifier, the first end of the 2nd 2.5k Ω resistance, the of the 2nd 2.5k Ω resistance
Two ends are separately connected the output end of the second end of the 0.47uF capacitor, the 7th operational amplifier, the 7th operational amplifier
Positive input terminal connect DC voltage, the output end of the 7th operational amplifier is also connected with the just defeated of first subtractor circuit
Enter end, the output end of first subtractor circuit connects the negative input end of second subtractor circuit, first subtractor circuit
Output end connect output signal end.
The beneficial effects of the present invention are:
(1) present invention can be avoided the aliasing and interference for pumping signal occur to electromyography signal, greatly improve existing
Rehabilitation training situation relies primarily on the defect of artificial judgment, is conducive to long-range rescue center and understands rehabilitation training personnel in time to exist
Family or other the quick response for needing rescue situations is not occurred by the occasion of on-site supervision；
(2) present invention screens the Spectrum Relationship between pumping signal and electromyography signal from the angle of frequency domain, and then obtains
Delayed data between electromyography signal and pumping signal has established solid foundation to improve the degree of purity of electromyography signal, relatively
There is stronger anti-noise effect in time-domain processing mode directly from the prior art and screen performance；
(3) it is chosen by mode and based on the training of statistical big data quantity, the present invention can intelligently control excitation
The channel of electrode is to open or be closed, to remove noise in corresponding rehabilitation training as much as possible, is improved overall
Output signal-noise ratio；
(4) it is screened using spectrum density as frequency spectrum, is conducive to save operand, reduces power consumption；
(5) by bandpass filter, electromyography signal screening can be preliminarily carried out, has established base for subsequent finer filter
Plinth；
(6) the present invention provides a kind of specially designed filter circuit unit, in conjunction with low order active filter and
Low order passive filter and novel designs according to filter construction not only reduce load effect and are suitable for including to the heart
Rate signal, motor message, electromyography signal etc. may have upper frequency or lower frequency and frequency changes irregular signal and exists
Interior wide variable signal filter range；Energy is filtered in the wide frequency range of common 0-10kHz frequency in compared with the prior art
Power and the drawbacks of not can guarantee the linearity under the wide scope of application, after tested, which is guaranteeing 70Hz low-frequency cutoff frequency
Under the premise of rate, the wideband filter range with 10-25kHz, decaying is less than 1.9dB, and third-order interception point reaches 30dBm, has
Excellent output linearity degree and rate-adaptive pacemaker stability, the chip relative to external specialized manufacturer significantly reduce cost,
Be conducive to wearable device in the tremendous development in China and popularize.
(7) present invention combines the filter circuit of the control of intelligent channel and well-designed filter unit composition, fits
Different accuracy requirement together in a variety of rehabilitation modalities has more good expandability on the basis of training data.
Detailed description of the invention
Fig. 1 shows the composition block diagram of wearable rehabilitation state monitor according to the present invention.
Fig. 2 shows the circuit diagrams of the second filter unit.
Specific embodiment
As shown in Figure 1, preferred embodiment in accordance with the present invention, the present invention provides a kind of wearable rehabilitation states to monitor
Device, comprising: flexible band, rehabilitation information detecting apparatus, communication unit and remote rehabilitation information monitoring server, wherein described
The rehabilitation information detecting apparatus and the communication unit are fixed on person's body to be monitored in wearable mode by flexible band
On, the rehabilitation information detecting apparatus when the flag information meets predetermined identity condition for being powered and carrying out rehabilitation training
And the detection of rehabilitation information, the communication unit is for the detection information that the rehabilitation information detecting apparatus exports to be transferred to
The remote rehabilitation information monitoring server, the remote rehabilitation information monitoring server are used for according to the detection information received
Request rescue information is issued to First aid station.
The rehabilitation information detecting apparatus includes: rehabilitation training equipment for carrying out rehabilitation training and exercise and is used for
The rehabilitation training detection device of rehabilitation training signal is detected in the recovery and exercise routine, the rehabilitation training equipment includes logical
It overdrives electrode and is used as the electricity to by the electrode excitation signal generation unit of excitation position emission electrode pumping signal and acquisition
The myoelectricity response signal acquisition unit of the response of pole excitation signal, the rehabilitation training detection device include: the remaining removal of excitation
Signal element, signal detection mode matching unit, amplification channel switch arrays, the first filter unit and the second filter unit,
Described in the remaining removal signal element of excitation, the signal detection mode matching unit, the amplification channel switch arrays, described
First filter unit and second filter unit are in sequential series.
Preferably, the pumping signal that the remaining removal signal element of the excitation is used to eliminate in electromyographic signal collection unit is dry
Disturb component, comprising: electrode excitation signal characteristic spectrum generating unit, delay determination unit, prolongs at electromyography signal frequency spectrum generation unit
Shi Danyuan, subtractor circuit are produced wherein the electrode excitation signal characteristic spectrum generating unit is generated in the electrode excitation signal
The prearranged signals frequency spectrum of specific incentives signal characteristic, the signal are attached on the basis of the electrode excitation signal that raw unit generates
Frequency spectrum is input into the delay determination unit, and the delay determination unit is for according to the prearranged signals frequency spectrum, (this to be predetermined
Signal be square wave when, frequency spectrum have periodically) periodic feature determine that it is produced with the electrode excitation signal generation unit
Phase difference between the frequency spectrum of raw electrode excitation signal, and the electrode excitation signal generation unit is determined according to the phase difference
The time between response signal is collected with the electromyographic signal collection unit to after by excitation position generation electrode excitation signal
Difference (is attenuated but spectrum signature will not change because being contaminated in the collected response signal of electromyographic signal collection unit in amplitude
Electrode excitation signal), the electrode that the delay unit generates the electrode excitation signal generation unit according to the time difference
Pumping signal is delayed, the signal obtained after delay by with the collected myoelectricity response signal of the electromyographic signal collection unit
It is input to the subtractor circuit jointly, so that the electrode excitation signal is remaining from described in the myoelectricity response signal
It is removed in myoelectricity response signal.
Preferably, the prearranged signals frequency spectrum is the frequency spectrum of the square-wave signal with 2 seconds.
Preferably, the signal detection mode matching unit includes: mode memory, spectral analysis unit and data processing
Device, the mode memory are stored with and the frequency spectrum of the one-to-one electrode excitation signal of the various modes of rehabilitation training signal
The First Eigenvalue, the electrode excitation signal that the spectral analysis unit is used to generate the electrode excitation signal generation unit become
It is changed to frequency spectrum and determines the Second Eigenvalue of the frequency spectrum, the Second Eigenvalue is identical as the fisrt feature Value Types, described
Data processor searches the Second Eigenvalue in the mode memory, and determines that matching the First Eigenvalue is corresponding
Mode.
Preferably, the First Eigenvalue and the Second Eigenvalue are spectrum density.
Preferably, the amplification channel switch arrays include multiple controllable switches and what amplifier connected in series was constituted opens
Array and channel status memory are closed, the input terminal of each amplifier in the switch arrays emits with to by excitation position
Each excitation electrode of electrode excitation signal concatenates correspondingly, the channel status memory for store with it is described a variety of
Optimized switch state of the one-to-one each excitation electrode of mode under each mode, the switch arrays are according to the letter
The mode that number detection pattern matching unit determines searches each excitation corresponding with the mode from the channel status memory
The optimized switch state of electrode in this mode, and control the switch state of each controllable switch in the switch arrays.
Preferably, the optimized switch state is each to disconnecting and/or being closed according to various rehabilitation training modes once
Relationship between the signal-to-noise ratio of the myoelectricity response signal obtained after controllable switch determines.
Preferably, first filter unit is bandpass filter, and lower limiting frequency and upper cut off frequency are respectively 5Hz
And 1800Hz.
Preferably, second filter unit include: 6.84k Ω resistance, 19.73k Ω resistance, 9.75k Ω resistance,
14.3k Ω resistance, 5.13k Ω resistance, 10.94k Ω resistance, 1.73k Ω resistance, 3.91k Ω resistance, 2.8k Ω resistance, 5k Ω
Resistance, 2k Ω resistance, the first 1k Ω resistance, the first 2.5k Ω resistance, the first 2.2k Ω resistance, the 2nd 2.2k Ω resistance, second
1k Ω resistance, 9.31k Ω resistance, 2.32k Ω resistance, 4.2k Ω resistance, 4.8k Ω resistance, the 2nd 2.5k Ω resistance, 0.27uF
Capacitor, 0.22uF capacitor, the first 0.31uF capacitor, 0.33uF capacitor, 0.38uF capacitor, 0.82uF capacitor, 6.8uF capacitor,
0.57uF capacitor, the 2nd 0.31uF capacitor, 0.12uF capacitor, 2uF capacitor, the first 0.8uF capacitor, the 2nd 0.8uF capacitor, first
0.35uF capacitor, the 2nd 0.35uF capacitor, the 3rd 0.31uF capacitor, 0.47uF capacitor, the first operational amplifier, the second operation are put
Big device, third operational amplifier, four-operational amplifier, the 5th operational amplifier, the 6th operational amplifier, the 7th operation amplifier
Device, the first Zener diode, the second Zener diode, third Zener diode, the 4th Zener diode, two pole of the 5th Zener
Pipe, the 6th Zener diode, the 7th Zener diode, the first subtractor circuit and the second subtractor circuit, wherein the 6.84k
The first end of Ω resistance is separately connected the first end at input signal end and 2.8k Ω resistance, and the second of the 6.84k Ω resistance
End connects the first end of the 19.73k Ω resistance, and the second end of the 19.73k Ω resistance is separately connected first operation and puts
The big positive input terminal of device and the first end of the 0.22uF capacitor, the second end ground connection of the 0.22uF capacitor, the 19.73k
The first end of Ω resistance is also connected with the first end of the 0.27uF capacitor, the second end connection described first of the 0.27uF capacitor
The output end of operational amplifier, the first end of 2uF capacitor, the first end and the first operational amplifier of the 9.75k Ω resistance
Negative input end, the second end of the 9.75k Ω resistance connects with the first end of the 14.3k Ω resistance, the 14.3k Ω electricity
The second end of resistance is separately connected the positive input terminal of the second operational amplifier and the first end of the first 0.31uF capacitor, institute
The second end ground connection of the first 0.31uF capacitor is stated, the first end of the 14.33k Ω resistance is also connected with the of the 0.33uF capacitor
One end, the second end of the 0.33uF capacitor connect the output end of the second operational amplifier, the first end of 2uF capacitor, institute
State the first end of 5.13k Ω resistance and the negative input end of second operational amplifier, the second end difference of the 2.8k Ω resistance
Connect the first of the first end of the 2nd 0.31uF capacitor, the first end of the 0.12uF capacitor and the 4.2k Ω resistance
End, the second end ground connection of the 4.2k Ω resistance, the second end of the 0.12uF capacitor are separately connected the third operation amplifier
The first end of the negative input end of device and the 4.8k Ω resistance, the second end of the 2nd 0.31uF capacitor are separately connected described
The anode of the output end and the first Zener diode of the second end of 4.8k Ω resistance and the third operational amplifier, described
The cathode of Zener diode connects the positive input terminal of second subtractor circuit, the output end connection of second subtractor circuit
The second end of the first 1k Ω resistance and the first end of the 2nd 0.8uF capacitor, the third operational amplifier it is just defeated
Enter end connection DC voltage, the second end of the 2uF capacitor is separately connected the positive input terminal of the four-operational amplifier, output
The first end at end, the first end of the first 1k Ω resistance and 5k Ω resistance, the second end connection the described 4th of the 5k Ω resistance
The output end of the negative input end of operational amplifier, the four-operational amplifier is also connected with the anode of the second Zener diode, institute
The cathode for stating the second Zener diode is separately connected the first end of the 5.13k Ω resistance and the first end of the 2k Ω resistance,
The output end of the third operational amplifier is also respectively connected with the cathode of the third Zener diode, the first 0.8uF capacitor
The anode of the first end of first end and the first 2.5k Ω resistance, the third Zener diode is separately connected described first
The anode of Zener diode, the first end of the 2nd 0.8uF capacitor, the anode of the 4th Zener diode, the first 1k Ω resistance
Two ends, the first end of the 2nd 1k Ω resistance, the first end of the 2nd 2.2k Ω resistance, the second end point of the first 2.5k Ω resistance
Do not connect the second end of the 2k Ω resistance and the second end of the 5.13k Ω resistance and the 5th Zener diode cathode and
The first end of the first 2.2k Ω resistance, the anode of the 4th Zener diode, the second end of the first 0.8uF capacitor,
It is the second end of two 0.8uF capacitors, the second end of the 2nd 1k Ω resistance, the second end of the first 0.35uF capacitor, described
The second end of 2nd 0.35uF capacitor, the cathode of the 6th Zener diode are grounded, the second end of the 2nd 2.2k Ω resistance
Be separately connected the first end of the 2nd 0.35uF capacitor, the anode of the 6th Zener diode, the 7th Zener diode anode,
The second end of the first 2.2k Ω resistance is separately connected the first end of the first 0.35uF capacitor, the 7th Zener diode
The first end of cathode and 9.31k Ω resistance, the second end of the 5.13k Ω resistance are separately connected the negative of the 5th Zener diode
The first end of pole, the first end of the 10.94k Ω resistance and the 0.82uF capacitor, the second of the 10.94k Ω resistance
End is separately connected the first end of the positive input terminal of the 5th operational amplifier, 0.38uF capacitor, the second end of the 0.38uF capacitor
Ground connection, the second end of the 0.82uF capacitor are separately connected the output end of the 5th operational amplifier, the 1.73k Ω resistance
First end, the negative input end of the 5th operational amplifier and the anode of the 5th Zener diode, the 1.73k Ω
The second end of resistance is separately connected the first end of the 3.91k Ω resistance and the first end of the 6.8uF capacitor, described
The second end of 3.91k Ω resistance is separately connected the positive input terminal of the 6th operational amplifier and the first end of 0.57uF capacitor, described
The second end of 0.57uF capacitor is grounded, and the second end of the 6.8uF capacitor is separately connected the output of the 6th operational amplifier
The negative input end at end, the negative input end of first subtractor circuit and the 6th operational amplifier, the 9.31k Ω resistance
Second end be separately connected the first end of the 0.47uF capacitor, the first end and 2.32k Ω of the 3rd 0.31uF capacitor
The first end of resistance, the second end ground connection of the 2.32k Ω resistance, the second end of the 3rd 0.31uF capacitor are separately connected institute
State the negative input end of the 7th operational amplifier, the first end of the 2nd 2.5k Ω resistance, the of the 2nd 2.5k Ω resistance
Two ends are separately connected the output end of the second end of the 0.47uF capacitor, the 7th operational amplifier, the 7th operational amplifier
Positive input terminal connect DC voltage, the output end of the 7th operational amplifier is also connected with the just defeated of first subtractor circuit
Enter end, the output end of first subtractor circuit connects the negative input end of second subtractor circuit, first subtractor circuit
Output end connect output signal end.
Preferred embodiment in accordance with the present invention, DC voltage are Vdd/2 and Vdd=5V.Each subtractor circuit can be with
Select subtracter.
Above for the purpose that narration made by presently preferred embodiments of the present invention is to illustrate, and it is not intended to limit essence of the invention
Really it is disclosed form, learns and make an amendment or change to be possible based on above introduction or from the embodiment of the present invention
, embodiment is to explain the principle of the present invention and those skilled in the art being allowed to exist with various embodiments using the present invention
It is selected in practical application and narration, technical idea attempt of the invention is determined by claim and its equalization.
Claims (1)
1. a kind of wearable rehabilitation state monitor, comprising: flexible band, rehabilitation information detecting apparatus, communication unit and remote
Cheng Kangfu information monitoring server, wherein the flexible band is by the rehabilitation information detecting apparatus and the communication unit with can
The mode of wearing is fixed on person's body to be monitored, and the rehabilitation information detecting apparatus is used to believe when the mark of the person to be monitored
Breath is powered and carries out the detection of rehabilitation training and rehabilitation information when meeting predetermined identity condition, the communication unit is used for institute
The detection information for stating the output of rehabilitation information detecting apparatus is transferred to the remote rehabilitation information monitoring server, the remote rehabilitation
Information monitoring server is used to issue request rescue information to First aid station according to the detection information received；The rehabilitation information
Detection device includes: rehabilitation training equipment for carrying out rehabilitation training and exercise and in the rehabilitation training and taking exercise
The rehabilitation training detection device of rehabilitation training signal is detected in the process, and the rehabilitation training equipment includes by motivating electrode to quilt
It motivates the electrode excitation signal generation unit of position emission electrode pumping signal and acquires the sound as the electrode excitation signal
The myoelectricity response signal acquisition unit answered, the rehabilitation training detection device include: the remaining removal signal element of excitation, signal inspection
Pattern matching unit, amplification channel switch arrays, the first filter unit and the second filter unit are surveyed, wherein the excitation remnants are gone
Except signal element, the signal detection mode matching unit, the amplification channel switch arrays, first filter unit and institute
It is in sequential series to state the second filter unit；
The remaining removal signal element of excitation is used to eliminate the pumping signal interference components in electromyographic signal collection unit, packet
Include: electrode excitation signal characteristic spectrum generating unit, delay determination unit, delay unit, is asked electromyography signal frequency spectrum generation unit
Difference circuit generates wherein the electrode excitation signal characteristic spectrum generating unit is generated in the electrode excitation signal generation unit
Electrode excitation signal on the basis of be attached to the prearranged signals frequency spectrum of specific incentives signal characteristic, which is entered
To the delay determination unit, the delay determination unit is used to determine it according to the periodic feature of the prearranged signals frequency spectrum
Phase difference between the frequency spectrum of the electrode excitation signal generated with the electrode excitation signal generation unit, and according to the phase difference
Determine the electrode excitation signal generation unit to by excitation position generate electrode excitation signal after with the electromyographic signal collection
Unit collects the time difference between response signal, and the delay unit generates the electrode excitation signal according to the time difference
The electrode excitation signal that unit generates is delayed, and the signal obtained after delay is collected with the electromyographic signal collection unit
Myoelectricity response signal be input to the subtractor circuit jointly, thus by the electrode excitation signal in the myoelectricity response signal
In remnants removed from the myoelectricity response signal；
The prearranged signals frequency spectrum is the frequency spectrum of the square-wave signal with 2 seconds；
The signal detection mode matching unit includes: mode memory, spectral analysis unit and data processor, the mode
Memory is stored with the First Eigenvalue with the frequency spectrum of the one-to-one electrode excitation signal of the various modes of rehabilitation training signal,
The spectral analysis unit is used to the electrode excitation signal that the electrode excitation signal generation unit generates being transformed to frequency spectrum simultaneously
Determine the Second Eigenvalue of the frequency spectrum, the Second Eigenvalue is identical as the fisrt feature Value Types, the data processor
The Second Eigenvalue is searched in the mode memory, and determines the matching corresponding mode of the First Eigenvalue；
The First Eigenvalue and the Second Eigenvalue are spectrum density；
The amplification channel switch arrays include the switch arrays that multiple controllable switches and amplifier connected in series are constituted and
Channel status memory, the input terminal of each amplifier in the switch arrays are believed with to by excitation position emission electrode excitation
Number each excitation electrode concatenate correspondingly, the channel status memory is a pair of with the various modes one for storing
Optimized switch state of each excitation electrode answered under each mode, each mode herein refer to the mode memory
Be stored with each mode in the various modes of rehabilitation training signal, the switch arrays are according to the signal detection mode
The mode that matching unit determines searches each excitation electrode corresponding with the mode in the mould from the channel status memory
Optimized switch state under formula, and control the switch state of each controllable switch in the switch arrays；First filtering
Unit is bandpass filter, and lower limiting frequency and upper cut off frequency are respectively 5Hz and 1800Hz；
It is characterized in that, the optimized switch state is according to various rehabilitation training modes once, it is each to disconnecting and/or being closed
Relationship between the signal-to-noise ratio of the myoelectricity response signal obtained after controllable switch determines；
Second filter unit include: 6.84k Ω resistance, 19.73k Ω resistance, 9.75k Ω resistance, 14.3k Ω resistance,
5.13k Ω resistance, 10.94k Ω resistance, 1.73k Ω resistance, 3.91k Ω resistance, 2.8k Ω resistance, 5k Ω resistance, 2k Ω electricity
Resistance, the first 1k Ω resistance, the first 2.5k Ω resistance, the first 2.2k Ω resistance, the 2nd 2.2k Ω resistance, the 2nd 1k Ω resistance,
9.31k Ω resistance, 2.32k Ω resistance, 4.2k Ω resistance, 4.8k Ω resistance, the 2nd 2.5k Ω resistance, 0.27uF capacitor,
0.22uF capacitor, the first 0.31uF capacitor, 0.33uF capacitor, 0.38uF capacitor, 0.82uF capacitor, 6.8uF capacitor, 0.57uF electricity
Appearance, the 2nd 0.31uF capacitor, 0.12uF capacitor, 2uF capacitor, the first 0.8uF capacitor, the 2nd 0.8uF capacitor, the first 0.35uF electricity
Appearance, the 2nd 0.35uF capacitor, the 3rd 0.31uF capacitor, 0.47uF capacitor, the first operational amplifier, second operational amplifier,
Three operational amplifiers, four-operational amplifier, the 5th operational amplifier, the 6th operational amplifier, the 7th operational amplifier, first
Zener diode, the second Zener diode, third Zener diode, the 4th Zener diode, the 5th Zener diode, the 6th are together
Receive diode, the 7th Zener diode, the first subtractor circuit and the second subtractor circuit, wherein the 6.84k Ω resistance
First end is separately connected the first end at input signal end and 2.8k Ω resistance, and the second end of the 6.84k Ω resistance connects institute
The first end of 19.73k Ω resistance is stated, the second end of the 19.73k Ω resistance is being separately connected first operational amplifier just
The first end of input terminal and the 0.22uF capacitor, the second end ground connection of the 0.22uF capacitor, the 19.73k Ω resistance
First end is also connected with the first end of the 0.27uF capacitor, and the second end of the 0.27uF capacitor connects first operation amplifier
The output end of device, the first end of 2uF capacitor, the first end of the 9.75k Ω resistance and the negative input of the first operational amplifier
End, the second end of the 9.75k Ω resistance are connected with the first end of the 14.3k Ω resistance, and the second of the 14.3k Ω resistance
End be separately connected the second operational amplifier positive input terminal and the first 0.31uF capacitor first end, described first
The second end of 0.31uF capacitor is grounded, and the first end of the 14.3k Ω resistance is also connected with the first end of the 0.33uF capacitor, institute
The second end for stating 0.33uF capacitor connects the output end of the second operational amplifier, the first end of 2uF capacitor, the 5.13k
The first end of Ω resistance and the negative input end of second operational amplifier, the second end of the 2.8k Ω resistance are separately connected described
The first end of the first end of 2nd 0.31uF capacitor, the first end of the 0.12uF capacitor and the 4.2k Ω resistance, it is described
The second end of 4.2k Ω resistance is grounded, and it is defeated that the second end of the 0.12uF capacitor is separately connected bearing for the third operational amplifier
Enter the first end of end and the 4.8k Ω resistance, the second end of the 2nd 0.31uF capacitor is separately connected the 4.8k Ω resistance
Second end and the third operational amplifier output end and the first Zener diode anode, two pole of the first Zener
The cathode of pipe connects the positive input terminal of second subtractor circuit, and the output end of second subtractor circuit connects the first 1k
The positive input terminal connection of the first end of the second end of Ω resistance and the 2nd 0.8uF capacitor, the third operational amplifier is straight
The second end of galvanic electricity pressure, the 2uF capacitor is separately connected the positive input terminal, output end, the first 1k of the four-operational amplifier
The second end of the first end of Ω resistance and the first end of 5k Ω resistance, the 5k Ω resistance connects the four-operational amplifier
Negative input end, the output end of the four-operational amplifier is also connected with the anode of the second Zener diode, second Zener
The cathode of diode is separately connected the first end of the 5.13k Ω resistance and the first end of the 2k Ω resistance, the third fortune
Calculate amplifier output end be also respectively connected with the cathode of the third Zener diode, the first 0.8uF capacitor first end and
The first end of the first 2.5k Ω resistance, the anode of the third Zener diode are separately connected the of the 2nd 0.8uF capacitor
One end, the anode of the 4th Zener diode, the second end of the first 1k Ω resistance, the first end of the 2nd 1k Ω resistance, the 2nd 2.2k
The first end of Ω resistance, the second end of the first 2.5k Ω resistance are separately connected the second end of the 2k Ω resistance and described
The first end of the second end of 5.13k Ω resistance and the cathode of the 5th Zener diode and the first 2.2k Ω resistance, it is described
The cathode of 4th Zener diode, the second end of the first 0.8uF capacitor, the second end of the 2nd 0.8uF capacitor, the 2nd 1k Ω
The second end of resistance, the second end of the first 0.35uF capacitor, the second end of the 2nd 0.35uF capacitor, the 6th Zener two
The cathode of pole pipe is grounded, and the second end of the 2nd 2.2k Ω resistance is separately connected the first of the 2nd 0.35uF capacitor
End, the anode of the 6th Zener diode, the 7th Zener diode anode, the second end of the first 2.2k Ω resistance connects respectively
First end, the cathode of the 7th Zener diode and the first end of 9.31k Ω resistance of the first 0.35uF capacitor are connect, it is described
The second end of 5.13k Ω resistance be separately connected the cathode of the 5th Zener diode, the 10.94k Ω resistance first end and
The second end of the first end of the 0.82uF capacitor, the 10.94k Ω resistance is separately connected the positive input of the 5th operational amplifier
It holds, the first end of 0.38uF capacitor, the second end ground connection of the 0.38uF capacitor, the second end of the 0.82uF capacitor connects respectively
Connect the output end of the 5th operational amplifier, the first end of the 1.73k Ω resistance, the 5th operational amplifier bear it is defeated
Enter the anode of end and the 5th Zener diode, the second end of the 1.73k Ω resistance is separately connected the 3.91k Ω electricity
The first end of the first end of resistance and the 6.8uF capacitor, the second end of the 3.91k Ω resistance are separately connected the 6th operation and put
The big positive input terminal of device and the first end of 0.57uF capacitor, the second end ground connection of the 0.57uF capacitor, the 6.8uF capacitor
Second end is separately connected the output end of the 6th operational amplifier, the negative input end of first subtractor circuit and described
The negative input end of six operational amplifiers, the second end of the 9.31k Ω resistance be separately connected the 0.47uF capacitor first end,
The first end of the 3rd 0.31uF capacitor and the first end of 2.32k Ω resistance, the second termination of the 2.32k Ω resistance
The second end on ground, the 3rd 0.31uF capacitor is separately connected the negative input end of the 7th operational amplifier, described second
The first end of 2.5k Ω resistance, the second end of the 2nd 2.5k Ω resistance be separately connected the second end of the 0.47uF capacitor,
The positive input terminal of the output end of 7th operational amplifier, the 7th operational amplifier connects DC voltage, the 7th operation
The output end of amplifier is also connected with the positive input terminal of first subtractor circuit, and the output end of first subtractor circuit connects institute
The negative input end of the second subtractor circuit is stated, the output end of first subtractor circuit connects output signal end.
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| CN107174243B (en) * | 2017-06-22 | 2020-03-31 | 四川东鼎里智信息技术有限责任公司 | Muscle balance information acquisition method |
| CN107137081B (en) * | 2017-06-22 | 2019-10-25 | 四川东鼎里智信息技术有限责任公司 | Muscle transient equilibrium detection system |
| CN107296606B (en) * | 2017-06-22 | 2019-10-25 | 四川东鼎里智信息技术有限责任公司 | Muscle transient equilibrium monitoring device |
| CN107296617B (en) * | 2017-06-22 | 2019-10-25 | 四川东鼎里智信息技术有限责任公司 | The monitoring method of muscle explosive force |
| CN108267249A (en) * | 2018-02-08 | 2018-07-10 | 四川东鼎里智信息技术有限责任公司 | A kind of stealthy night vision device of wearableization based on graphene |
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