CN106236090B - A kind of physical stamina test equipment based on ARM - Google Patents
A kind of physical stamina test equipment based on ARM Download PDFInfo
- Publication number
- CN106236090B CN106236090B CN201610589710.1A CN201610589710A CN106236090B CN 106236090 B CN106236090 B CN 106236090B CN 201610589710 A CN201610589710 A CN 201610589710A CN 106236090 B CN106236090 B CN 106236090B
- Authority
- CN
- China
- Prior art keywords
- resistance
- capacitor
- signal
- operational amplifier
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/389—Electromyography [EMG]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/30—Input circuits therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Cardiology (AREA)
- Physiology (AREA)
- Pulmonology (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
In order to improve the processing accuracy of physical stamina test feedback signal, reduce the noise wherein mixed, the physical stamina test equipment based on ARM that the present invention provides a kind of, it include: ASM9260T processor, physical stamina test feedback signal detection unit, and physical efficiency Indexes Comparison and display unit, wherein the ASM9260T processor controls the physical stamina test feedback signal detection unit and carries out physical stamina test to human body, the physical stamina test feedback signal detection unit detects physical stamina test feedback signal, after the physical efficiency Indexes Comparison is compared according to the feedback signal that the physical stamina test feedback signal detection unit exports with preset threshold with display unit, comparison result is shown.The present invention can be avoided the aliasing and interference for pumping signal occur to electromyography signal, and physical stamina test situation is enabled by artificial judgment, to be conducive to the situation of change that sportsman etc. understands in time the crowd that physical stamina test result has urgent need physical efficiency as few as possible.
Description
Technical field
The present invention relates to physical efficiencys to quantify monitoring technical field, sets more particularly, to a kind of physical stamina test based on ARM
It is standby.
Background technique
Modern rehabilitation science thinks that the physical efficiency after personal injury can obtain rehabilitation, example by movement appropriate and exercise
Such as, by means of fitness equipment.However, the usual function of traditional fitness equipment is simple, expensive, the physical efficiency for being mainly used for Healthy People is strong
Change trained or fitness training.It is not suitable for use in the physical training of apoplexy or hemiplegia patient.In the prior art, the body of sportsman
It can test and usually be completed by professional test personnel teacher, medical expense is high, the course for the treatment of is long, it usually needs user receives instruction to hospital
Practice, to bring many inconvenience.For healthy person, common body-building is costly, and many by place, personnel, expense etc.
The limitation of aspect.
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 limb physical efficiency test machine people 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 limb physical efficiency test machine people's 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 physical stamina test 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 physical stamina test state, the present invention from healing robot during physical stamina test
Provide a kind of physical stamina test equipment based on ARM, comprising: ASM9260T processor, physical stamina test feedback signal detection unit,
And physical efficiency Indexes Comparison and display unit, wherein the ASM9260T processor controls the physical stamina test feedback signal detection
Unit carries out physical stamina test to human body, and the physical stamina test feedback signal detection unit detects physical stamina test feedback signal, described
The feedback signal and default threshold that physical efficiency Indexes Comparison and display unit are exported according to the physical stamina test feedback signal detection unit
After value is compared, comparison result is shown.
Further, the physical stamina test feedback signal detection unit includes: the physical stamina test for carrying out physical stamina test
Equipment and in the test process detect physical stamina test feedback signal feedback signal detection device, the physical stamina test
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 feedback signal 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 and the one-to-one electrode excitation signal of the various modes of physical stamina test feedback signal
The First Eigenvalue of frequency spectrum, the spectral analysis unit are used for the electrode excitation for generating the electrode excitation signal generation unit
Signal is transformed to frequency spectrum and determines the Second Eigenvalue of the frequency spectrum, the Second Eigenvalue and the fisrt feature Value Types phase
Together, the data processor searches the Second Eigenvalue in the mode memory, and determines that matching first is special
The corresponding mode of value indicative.
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 physical stamina test 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, so that physical stamina test situation
Artificial judgment can be relied on as few as possible, overcome existing detection device and requirement is unable to satisfy to the processing of interference and aliasing
The drawbacks of, be conducive to the situation of change that sportsman etc. understands in time the crowd that physical stamina test result has urgent need physical efficiency；
(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 during corresponding physical stamina test 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 the physical stamina test equipment according to the present invention based on ARM.
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 physical stamina tests based on ARM to set
It is standby, comprising: ASM9260T processor, physical stamina test feedback signal detection unit and physical efficiency Indexes Comparison and display unit,
Described in ASM9260T processor control the physical stamina test feedback signal detection unit physical stamina test, the body carried out to human body
Feedback signal detection unit detection physical stamina test feedback signal can be tested, the physical efficiency Indexes Comparison and display unit are according to
After the feedback signal of physical stamina test feedback signal detection unit output is compared with preset threshold, comparison result is shown
Show.
Wherein, the physical efficiency Indexes Comparison and display unit include the storage for being stored with the standard reference value of physical efficiency index
Device, display and display driver circuit corresponding with the display, the physical stamina test feedback signal are turned by modulus
It is compared after changing with the standard reference value, comparison result and the standard reference value are shown in it by the display jointly
In screen on.
The physical stamina test feedback signal detection unit includes: the physical stamina test equipment and use for carrying out physical stamina test
In the feedback signal detection device for detecting physical stamina test feedback signal in the test process, the physical stamina test 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 feedback signal 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 the frequency with the one-to-one electrode excitation signal of the various modes of physical stamina test feedback signal
The First Eigenvalue of spectrum, the electrode excitation that the spectral analysis unit is used to generate the electrode excitation signal generation unit are believed
It number being transformed to frequency spectrum and determines the Second Eigenvalue of the frequency spectrum, the Second Eigenvalue is identical as the fisrt feature Value Types,
The data processor searches the Second Eigenvalue in the mode memory, and determines matching the First Eigenvalue
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 physical stamina test 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 physical stamina test equipment based on ARM characterized by comprising ASM9260T processor, physical stamina test feedback letter
Number detection unit and physical efficiency Indexes Comparison and display unit, wherein the ASM9260T processor controls the physical stamina test
Feedback signal detection unit carries out physical stamina test to human body, and the physical stamina test feedback signal detection unit detection physical stamina test is anti-
The feedback letter that feedback signal, the physical efficiency Indexes Comparison and display unit are exported according to the physical stamina test feedback signal detection unit
After number being compared with preset threshold, comparison result is shown；
The physical stamina test feedback signal detection unit include: physical stamina test equipment for carrying out physical stamina test and for
The feedback signal detection device of physical stamina test feedback signal is detected in the test process, the physical stamina test equipment includes by swashing
Electrode is encouraged to swash to by the electrode excitation signal generation unit of excitation position emission electrode pumping signal and acquisition as the electrode
The myoelectricity response signal acquisition unit of the response of signal is encouraged, the feedback signal detection device includes: the remaining removal signal of excitation
Unit, signal detection mode matching unit, amplification channel switch arrays, the first filter unit and the second filter unit, wherein institute
State the remaining removal signal element, the signal detection mode matching unit, the amplification channel switch arrays, described first of excitation
Filter unit and second filter unit are in sequential series；
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 spy with the frequency spectrum of the one-to-one electrode excitation signal of the various modes of physical stamina test feedback signal
Value indicative, the spectral analysis unit are used to for the electrode excitation signal that the electrode excitation signal generation unit generates to be transformed to frequency
Compose and determine the Second Eigenvalue of the frequency spectrum, the Second Eigenvalue is identical as the fisrt feature Value Types, at the data
Reason device searches the Second Eigenvalue in the mode memory, and determines the matching corresponding mould of the First Eigenvalue
Formula；
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, the switch arrays are according to the signal detection mould
The mode that formula matching unit determines searches each excitation electrode corresponding with the mode at this from the channel status memory
Optimized switch state under mode, and control the switch state of each controllable switch in the switch arrays；
The optimized switch state is according to various physical stamina test modes once, after disconnecting and/or being closed each controllable switch
Relationship between the signal-to-noise ratio of the myoelectricity response signal of acquisition determines；
First filter unit is bandpass filter, and lower limiting frequency and upper cut off frequency are respectively 5Hz and 1800Hz；
It is characterized in that, 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 14.3k 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 5.13k Ω resistance
The second end of the negative input end of one end and second operational amplifier, the 2.8k Ω resistance is separately connected the 2nd 0.31uF
The first end of the first end of capacitor, the first end of the 0.12uF capacitor and the 4.2k Ω resistance, the 4.2k Ω resistance
Second end ground connection, the second end of the 0.12uF capacitor are separately connected the negative input end of the third operational amplifier and described
The first end of 4.8k Ω resistance, the second end of the 2nd 0.31uF capacitor be separately connected the 4.8k Ω resistance second end and
The cathode of the output end of the third operational amplifier and the anode of the first Zener diode, first Zener diode connects
The positive input terminal of second subtractor circuit is connect, the output end of second subtractor circuit connects the of the first 1k Ω resistance
The first end at two ends and the 2nd 0.8uF capacitor, the positive input terminal of the third operational amplifier connects DC voltage, described
The second end of 2uF capacitor be separately connected the positive input terminal of the four-operational amplifier, output end, the first 1k Ω resistance first
The first end of end and 5k Ω resistance, the second end of the 5k Ω resistance connect the negative input end of the four-operational amplifier,
The output end of the four-operational amplifier is also connected with the anode of the second Zener diode, the cathode of second Zener diode
Be separately connected the first end of the 5.13k Ω resistance and the first end of the 2k Ω resistance, the third operational amplifier it is defeated
Outlet is also respectively connected with the cathode of the third Zener diode, the first end of the first 0.8uF capacitor and the first 2.5k
The anode of the first end of Ω resistance, the third Zener diode is separately connected the first end of the 2nd 0.8uF capacitor, the 4th Zener
The anode of diode, the second end of the first 1k Ω resistance, the first end of the 2nd 1k Ω resistance, the 2nd 2.2k Ω resistance first
End, the second end of the first 2.5k Ω resistance be separately connected the 2k Ω resistance second end and the 5.13k Ω resistance
The first end of the cathode and the first 2.2k Ω resistance of second end and the 5th Zener diode, the 4th Zener diode
Cathode, the second end of the first 0.8uF capacitor, the second end of the 2nd 0.8uF capacitor, the second end of the 2nd 1k Ω resistance,
The second end of the first 0.35uF capacitor, the second end of the 2nd 0.35uF capacitor, the cathode of the 6th Zener diode are equal
Ground connection, the second end of the 2nd 2.2k Ω resistance are separately connected the first end of the 2nd 0.35uF capacitor, the 6th Zener two
The second end of the anode of the anode of pole pipe, the 7th Zener diode, the first 2.2k Ω resistance is separately connected described first
The first end of the first end of 0.35uF capacitor, the cathode of the 7th Zener diode and 9.31k Ω resistance, the 5.13k Ω electricity
The second end of resistance is separately connected the cathode of the 5th Zener diode, the first end of the 10.94k Ω resistance and the 0.82uF
The second end of the first end of capacitor, the 10.94k Ω resistance is separately connected positive input terminal, the 0.38uF of the 5th operational amplifier
The first end of capacitor, the second end ground connection of the 0.38uF capacitor, the second end of the 0.82uF capacitor are separately connected described the
The output end of five operational amplifiers, the first end of the 1.73k Ω resistance, the 5th operational amplifier negative input end and
The anode of 5th Zener diode, the second end of the 1.73k Ω resistance are separately connected the first of the 3.91k Ω resistance
The first end of end and the 6.8uF capacitor, the second end of the 3.91k Ω resistance are being separately connected the 6th operational amplifier just
The first end of input terminal and 0.57uF capacitor, the second end ground connection of the 0.57uF capacitor, the second end point of the 6.8uF capacitor
The output end of the 6th operational amplifier, the negative input end of first subtractor circuit and the 6th operation is not connected to put
The negative input end of big device, the second end of the 9.31k Ω resistance are separately connected the first end of the 0.47uF capacitor, the third
The first end of 0.31uF capacitor and the first end of 2.32k Ω resistance, the second end ground connection of the 2.32k Ω resistance, described the
The second end of three 0.31uF capacitors is separately connected the negative input end of the 7th operational amplifier, the 2nd 2.5k Ω resistance
The second end of first end, the 2nd 2.5k Ω resistance is separately connected the second end of the 0.47uF capacitor, the 7th operation amplifier
The positive input terminal of the output end of device, the 7th operational amplifier connects DC voltage, the output of the 7th operational amplifier
End is also connected with the positive input terminal of first subtractor circuit, and poor electricity is sought in the output end connection described second of first subtractor circuit
The output end of the negative input end on road, first subtractor circuit connects output signal end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610589710.1A CN106236090B (en) | 2016-07-25 | 2016-07-25 | A kind of physical stamina test equipment based on ARM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610589710.1A CN106236090B (en) | 2016-07-25 | 2016-07-25 | A kind of physical stamina test equipment based on ARM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106236090A CN106236090A (en) | 2016-12-21 |
| CN106236090B true CN106236090B (en) | 2019-04-09 |
Family
ID=57603832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610589710.1A Active CN106236090B (en) | 2016-07-25 | 2016-07-25 | A kind of physical stamina test equipment based on ARM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106236090B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244753A (en) * | 2008-03-17 | 2008-08-20 | 哈尔滨工业大学 | Motion training pedal cycle with multi-motion and feedback mode |
| CN102438519A (en) * | 2009-08-28 | 2012-05-02 | 艾伦·约瑟夫·泽尔纳 | Characterizing a physical capability by motion analysis |
| CN104207793A (en) * | 2014-07-03 | 2014-12-17 | 中山大学 | Gripping function evaluating and training system |
| CN105233406A (en) * | 2015-09-25 | 2016-01-13 | 上海交通大学 | Cerebral apoplexy functional electrical stimulation rehabilitation system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9372535B2 (en) * | 2013-09-06 | 2016-06-21 | Thalmic Labs Inc. | Systems, articles, and methods for electromyography-based human-electronics interfaces |
-
2016
- 2016-07-25 CN CN201610589710.1A patent/CN106236090B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244753A (en) * | 2008-03-17 | 2008-08-20 | 哈尔滨工业大学 | Motion training pedal cycle with multi-motion and feedback mode |
| CN102438519A (en) * | 2009-08-28 | 2012-05-02 | 艾伦·约瑟夫·泽尔纳 | Characterizing a physical capability by motion analysis |
| CN104207793A (en) * | 2014-07-03 | 2014-12-17 | 中山大学 | Gripping function evaluating and training system |
| CN105233406A (en) * | 2015-09-25 | 2016-01-13 | 上海交通大学 | Cerebral apoplexy functional electrical stimulation rehabilitation system |
Non-Patent Citations (2)
| Title |
|---|
| 表面肌电信号实时反馈式电刺激康复训练系统的设计;杨洋等;《生物医学工程学进展》;20150930;第36卷(第3期);正文第143页左栏第11行到第145页右栏第6行及图1-2 |
| 高校体质健康测试信息反馈系统的构建研究;杨锋;《网络与信息工程》;20141231;全文 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106236090A (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105962903B (en) | A kind of wearable rehabilitation state monitor | |
| CN111084618A (en) | Wearable multifunctional respiration cycle detection system and method | |
| CN104224495A (en) | Portable elbow joint rehabilitation robot control method | |
| CN106308792A (en) | Portable collection device for high precision myoelectric signal | |
| CN101449971A (en) | Portable cardiac diagnosis monitoring device based on rhythm mode | |
| CN106236090B (en) | A kind of physical stamina test equipment based on ARM | |
| CN110786848B (en) | Single-channel acquisition amplifier for multiple physiological parameter signals | |
| CN201033074Y (en) | Portable wireless cardiac electrical monitoring instrument | |
| CN106228012B (en) | A kind of remote rehabilitation information detecting system | |
| Lee et al. | Wearable ECG monitoring system using conductive fabrics and active electrodes | |
| CN103690161B (en) | Wearable electroencephalogram sleeping quality evaluator | |
| CN106137189B (en) | A kind of motion function recovery detector | |
| CN105232041A (en) | Measuring device for electrical characteristic distribution of human body surface, data terminal and method | |
| CN106175760B (en) | A kind of front-end detection unit of motion function recovery system | |
| CN106209030B (en) | Rehabilitation training signal filter circuit | |
| CN204698533U (en) | Outdoor exercise ambient parameter and pulse frequency detector | |
| CN104000567B (en) | Portable multipoint pulse wireless monitoring system | |
| CN200966842Y (en) | Temporary cardiac analyser | |
| CN105877745A (en) | Direct-current motor speed control system and method based on surface electromyogram signals | |
| CN207590676U (en) | A kind of portable cardiac detection device based on electronics epidermis | |
| CN211066609U (en) | Human surface electromyographic signal monitoring device | |
| CN101972514A (en) | Portable pressure-mediated biological function feedback instrument | |
| CN112842367A (en) | Human body electromyographic signal detection device and detection system | |
| Liye et al. | Research of Feature Extraction Method for Stroke Patients' Surface Electromyography | |
| CN102688029A (en) | Exercise intensity and physiological parameter detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |