CN106166329A - Portable detector based on neuromuscular electric stimulation therapy instrument and method - Google Patents
Portable detector based on neuromuscular electric stimulation therapy instrument and method Download PDFInfo
- Publication number
- CN106166329A CN106166329A CN201610609261.2A CN201610609261A CN106166329A CN 106166329 A CN106166329 A CN 106166329A CN 201610609261 A CN201610609261 A CN 201610609261A CN 106166329 A CN106166329 A CN 106166329A
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- signal
- electric stimulation
- circuit
- stimulation therapy
- therapy instrument
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
Abstract
The present invention provides a kind of portable detector based on neuromuscular electric stimulation therapy instrument, and including housing, circuit board, software system and touch screen, described housing includes: main casing, button cap and mounting fixing parts；Described circuit board includes: relay network, resistor network, signal conditioning circuit, CPU single-chip microcomputer and power module.Invention is automatically controlled by relay network, safeguard protection and change-over circuit; the load resistance switching of the different resistances of resistor network; signal is amplified and adds signal zero circuit by signal conditioning circuit; improve precision and the stability of sampling; the electrical parameter and the accuracy of waveform that make detection are higher; reduce linearity error, simple in construction, be used widely in medical devices detection and industrial control field.
Description
Technical field
The present invention relates to precision instrument detection field, particularly relate to a kind of portable inspection based on neuromuscular electric stimulation therapy instrument
Survey device and method.
Background technology
Medically, conventional neuromuscular electric stimulation therapy instrument sends electrical pulse sequence induction muscular movement, stimulates specific muscle
Group makes it twitch or shrinks, and then reaches the technology that " function " repairs.This instrument output electric pulse size is directly connected to control
The effect treated, the progress for the treatment of is played vital effect by the stability of its electrical parameter output, existing current, electricity traditionally
Sub-detecting instrument reading inaccuracy, reacts the sensitiveest, line style error is bigger, it is impossible to that well applies at precision instrument is electrical
In detection.Therefore, it is necessary to design a kind of portable detector based on neuromuscular electric stimulation therapy instrument and method.
Summary of the invention
The present invention provides a kind of portable detector based on neuromuscular electric stimulation therapy instrument and method, to solve to pass at present
System electronic detector reading inaccuracy, reacts the sensitiveest, line style error is bigger, it is impossible to well apply the electricity at precision instrument
Property detection on problem.
To achieve these goals, the present invention is to realize by the following technical solutions: a kind of based on neuromuscular electricity
The portable detector of stimulation instrument, including housing, circuit board, software system and touch screen, described housing includes: main casing,
Button cap and mounting fixing parts；Described circuit board includes: relay network, resistor network, signal conditioning circuit, CPU single-chip microcomputer
And power module；Wherein,
CPU single-chip microcomputer is 12 high-speed AD of band, and 12 high-speed AD of described band use SMT32F407VET6；
Relay network is connected with resistor network, is used for automatically controlling, safeguard protection and change-over circuit；
Resistor network is connected with signal conditioning circuit, is used for generating test signal；
Signal conditioning circuit is connected with CPU single-chip microcomputer, is used for amplifying signal and processing AD sampling；
Power module is used for providing power supply needed for system；
Touch screen is connected with CPU single-chip microcomputer, is used for showing output signal and oscillogram.
Further, described relay network includes relay, and described relay uses TQ2-L2-5V.
Further, described resistor network includes that load resistance, described load resistance are divided into 300 Ω load resistances, 500 Ω
Load resistance, 1000 Ω load resistances, 2000 Ω load resistances, 10K Ω load resistance and outside extension 80 Ω load resistances；
Further, described signal conditioning circuit includes variable gain amplifier, and described variable gain amplifier is for right
Signal is amplified 1-128 times and signal zero is adjusted to 1.25V, and described variable gain amplifier uses PGA280.
Further, described power module includes that lithium battery charging circuit, 3.3V power supply, 5V backlight and relay are powered electricity
Source, ± 5V analog circuit power supply and a key switch electromechanics road；Wherein,
Described lithium battery charging circuit includes battery charge controller, and described controller uses MCP73831T-2ATI/OT；
3.3V power supply includes IC chip, and described IC chip uses TPS62260DDC；
5V backlight and relay power supply include integrated switch, and described boost converter uses TPS61040；
± 5V analog circuit power supply includes integrated switch, and described integrated switch uses TPS65133；
One key switch electromechanics road includes switching metal-oxide-semiconductor and unilateral diode.
Further, being provided with film crystal tube drive circuit between described touch screen and CPU single-chip microcomputer, described touch screen is adopted
With 4.3 cun of capacitance touch screens.
A kind of portable detection method based on neuromuscular electric stimulation therapy instrument, described method comprises the steps:
S1) first device is started shooting；
S2) outfan of neuromuscular electric stimulation therapy instrument divides both positive and negative polarity to be respectively connecting to the signal input part of device；
S3) selector channel, impedance on device, enters test interface；
S4), after neuromuscular electric stimulation therapy instrument being started shooting, start output, test.
Further, described step S3) include step S3.1): enter measurement pattern, arrange load impedance, TCH test channel,
Voltage range and frequency band range.
Further, described test parameter includes electric current, voltage, output waveform figure, input voltage signal value, signal frequency
Rate, DC component, AC compounent, interference electric current and beat frequency.
The invention has the beneficial effects as follows:
The present invention is automatically controlled by relay network, safeguard protection and change-over circuit, the different resistances of resistor network
Load resistance switch, signal is amplified and adds signal zero circuit by signal conditioning circuit, improve sampling precision and
Stability, makes the electrical parameter of detection and accuracy of waveform higher, reduce linearity error, simple in construction, medical devices detection and
Industrial control field is used widely.
Accompanying drawing explanation
Fig. 1 is that a structure of the present invention connects block diagram；
Fig. 2 is a circuit connection diagram of the CPU single-chip microcomputer of the present invention；
Fig. 3 is a circuit connection diagram of the variable gain amplifier of the present invention；
Fig. 4 is a circuit connection diagram of the access point of the present invention；
Fig. 5 is a circuit connection diagram of relay DQ1～DQ3 of the present invention；
Fig. 6 is a circuit connection diagram of invention relay DQ4～DQ7；
Fig. 7 is a circuit connection diagram of invention relay DQ8.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the embodiment of the present invention, and make the present invention real
Execute the above-mentioned purpose of example, feature and advantage can become apparent from understandable, below in conjunction with the accompanying drawings to technical side in the embodiment of the present invention
Case is described in further detail.
Seeing Fig. 1, the present invention includes housing, circuit board and touch screen, and housing includes: main casing, film key；Circuit board
Including: relay network, resistor network, signal conditioning circuit, CPU single-chip microcomputer and power pack；Wherein, CPU single-chip microcomputer is band
12 high-speed AD, 12 high-speed AD of described band use SMT32F407VET6；Relay network is connected with resistor network, for certainly
Dynamic control, safeguard protection and change-over circuit；Resistor network is connected with signal conditioning circuit, is used for generating test signal；Signal is adjusted
Reason circuit is connected with CPU single-chip microcomputer, is used for amplifying signal and processing AD sampling；Numeral needed for power pack generation system and mould
Intend power supply, for system power supply；Touch screen is connected with CPU single-chip microcomputer, is used for showing output signal, oscillogram and measured value.
In the present embodiment, relay network includes relay, and described relay uses TQ2-L2-5V；Resistor network bag
Including load resistance, load resistance is divided into 300 Ω load resistances, 500 Ω load resistances, 1000 Ω load resistances, 2000 Ω loads
Resistance, 10K Ω load resistance and outside extension 80 Ω load resistances；Signal conditioning circuit includes variable gain amplifier, adjustable
Gain amplifier for being amplified 1-128 times and signal zero being adjusted to 1.25V to signal, and variable gain amplifier uses
PGA280；Power module includes that lithium battery charging circuit, 3.3V power supply, 5V backlight and relay power supply, ± 5V simulate electricity
Road power supply and a key switch electromechanics road；Wherein, lithium battery charging circuit includes that battery charge controller, described controller are adopted
Use MCP73831T-2ATI/OT；3.3V power supply includes IC chip, and IC chip uses TPS62260DDC；5V backlight and relay supply
Electricity power supply includes integrated switch, and boost converter uses TPS61040；± 5V analog circuit power supply includes integrated switch, collection
Switch is become to use TPS65133；One key switch electromechanics road includes switching metal-oxide-semiconductor and unilateral diode.
In the present embodiment, film crystal tube drive circuit, described touch it are provided with between described touch screen and CPU single-chip microcomputer
Screen uses 4.3 cun of capacitance touch screens.
The operation principle of the present invention is: according to test setting, and software controls relay DQ1～DQ3 and chooses signal access point
Wherein a road or two-way in J1～J3, and control DQ4～DQ8 choose test load resistor network, DQ8 is for choosing outside
Resistance and internal relay.After voltage test signal is by measuring divider resistance R238～R242 and R244 dividing potential drop, voltage is believed
Number sending in 7 feet of PGA280 i.e. passage 2 and to be amplified and the lifting of signal intermediate value, the signal after conditioning is sent into
23 feet carry out AD sampling, and according to the size of AD value, CPU is automatically adjusted the amplification of PGA280 to suitably value, it is ensured that signal
Complete, obtain complete measurement data.The signal mean voltage input pin of PGA280 is 3 feet, and this foot voltage is defeated by the DA of CPU
Go out 30 foot outputs, it is achieved software is adjustable.
In the present embodiment, when testing current, current signal is converted into voltage signal by R274 by current test signal
The passage 1 of rear feeding PGA280, other signal flows and processing mode are with above-mentioned operation principle.
A kind of portable detection method based on neuromuscular electric stimulation therapy instrument, described method comprises the steps:
S1) first device is started shooting；
S2) outfan of neuromuscular electric stimulation therapy instrument divides both positive and negative polarity to be respectively connecting to the signal input part of device；
S3) selector channel, impedance on device, enters test interface, enters measurement pattern, arranges load impedance, test
Passage, voltage range and frequency band range；
S4), after neuromuscular electric stimulation therapy instrument being started shooting, start output, test, draw test parameter, including: electric current
(RMS), voltage (RMS), electric current (MAX), voltage (MAX), output waveform figure, input voltage signal value, signal frequency, direct current divide
Amount, AC compounent, interference electric current and beat frequency.
In the present embodiment, when test electric current (MAX, RMS) and voltage (MAX, RMS), signal is selected by relay network
Sampled by the high-speed AD of CPU after taking the one, two or three in 1～3 passages, access load resistor network and PGA280,
Obtaining initial data, CPU is processed by Fourier transformation, draws electric current (MAX, RMS) and voltage (MAX, RMS) value；Test defeated
When entering signal value, signal, by being sampled by the high-speed AD of CPU after relay network, load resistor network and PGA280, is obtained
Initial data, by changing the sampling time, sample frequency can change between 10K to 100K；During test DC component, by surveying
Measuring initial data, CPU is processed by Fourier transformation, draws DC component；During test AC compounent, obtained by measurement
Initial data, CPU is processed by Fourier transformation, draws AC compounent；When test interference electric current and beat frequency, interference electric current and bat
Frequency is typically made up of 2 or multiple channel signal, and one of them has amplitude and specific, a frequency, additionally have amplitude and specific and can
Frequency；The electric current of each passage, frequency can be measured respectively；Interference current effective value is to be realized by the superposition of input signal
's.
As seen from the above-described embodiment, the present invention is automatically controlled by relay network, safeguard protection and change-over circuit, resistance
The load resistance switching of the different resistances of network, signal is amplified and adds signal zero circuit, carrying by signal conditioning circuit
The precision of high sampling and stability, make the electrical parameter of detection and accuracy of waveform higher, reduces line style error, simple in construction,
It is used widely in medical devices detection and industrial control field.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained at this
In the middle of the right of invention.
Claims (9)
1. a portable detector based on neuromuscular electric stimulation therapy instrument, including housing, circuit board, software system and touch
Screen, it is characterised in that: described housing includes: main casing, button cap and mounting fixing parts；Described circuit board includes: relay net
Network, resistor network, signal conditioning circuit, CPU single-chip microcomputer and power module；Wherein,
CPU single-chip microcomputer is 12 high-speed AD of band, and 12 high-speed AD of described band use SMT32F407VET6；
Relay network is connected with resistor network, is used for automatically controlling, safeguard protection and change-over circuit；
Resistor network is connected with signal conditioning circuit, is used for generating test signal；
Signal conditioning circuit is connected with CPU single-chip microcomputer, is used for amplifying signal and processing AD sampling；
Power module is used for providing power supply needed for system；
Touch screen is connected with CPU single-chip microcomputer, is used for showing output signal and oscillogram.
A kind of portable detector based on neuromuscular electric stimulation therapy instrument, it is characterised in that: institute
Stating relay network and include relay, described relay uses TQ2-L2-5V.
A kind of portable detector based on neuromuscular electric stimulation therapy instrument, it is characterised in that: institute
State resistor network and include that load resistance, described load resistance are divided into 300 Ω load resistances, 500 Ω load resistances, 1000 Ω loads
Resistance, 2000 Ω load resistances, 10K Ω load resistance and outside extension 80 Ω load resistances.
A kind of portable detector based on neuromuscular electric stimulation therapy instrument, it is characterised in that: institute
Stating signal conditioning circuit and include variable gain amplifier, described variable gain amplifier is for being amplified 1-128 times to signal
With signal zero is adjusted to 1.25V, described variable gain amplifier use PGA280.
A kind of portable detector based on neuromuscular electric stimulation therapy instrument, it is characterised in that: institute
State power module and include that lithium battery charging circuit, 3.3V power supply, 5V backlight and relay power supply, ± 5V analog circuit are powered
Power supply and a key switch electromechanics road；Wherein,
Described lithium battery charging circuit includes battery charge controller, and described controller uses MCP73831T-2ATI/OT；
3.3V power supply includes IC chip, and described IC chip uses TPS62260DDC；
5V backlight and relay power supply include integrated switch, and described boost converter uses TPS61040；
± 5V analog circuit power supply includes integrated switch, and described integrated switch uses TPS65133；
One key switch electromechanics road includes switching metal-oxide-semiconductor and unilateral diode.
A kind of portable detector based on neuromuscular electric stimulation therapy instrument, it is characterised in that: institute
Stating and be provided with film crystal tube drive circuit between touch screen and CPU single-chip microcomputer, described touch screen uses 4.3 cun of capacitance touch screens.
7. a portable detection method based on neuromuscular electric stimulation therapy instrument, described method comprises the steps:
S1) first device is started shooting；
S2) outfan of neuromuscular electric stimulation therapy instrument divides both positive and negative polarity to be respectively connecting to the signal input part of device；
S3) selector channel, impedance on device, enters test interface；
S4), after neuromuscular electric stimulation therapy instrument being started shooting, start output, test, draw test parameter.
A kind of portable detection method based on nerve electric stimulation instrument, it is characterised in that: described step
Rapid S3) include step S3.1): enter measurement pattern, load impedance, TCH test channel, voltage range and frequency band range are set.
A kind of portable detection method based on nerve electric stimulation instrument, it is characterised in that: described survey
Examination parameter includes electric current, voltage, output waveform figure, input voltage signal value, signal frequency, DC component, AC compounent, interference
Electric current and beat frequency.
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| CN201610609261.2A CN106166329B (en) | 2016-07-28 | 2016-07-28 | Portable detector and method based on neuromuscular electric stimulation therapy instrument |
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| CN201610609261.2A CN106166329B (en) | 2016-07-28 | 2016-07-28 | Portable detector and method based on neuromuscular electric stimulation therapy instrument |
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| CN106166329A true CN106166329A (en) | 2016-11-30 |
| CN106166329B CN106166329B (en) | 2019-07-02 |
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| CN109381786A (en) * | 2018-09-10 | 2019-02-26 | 清华大学 | Intersect the system of electric pulse performance for detecting implantation medical equipment |
| CN109381787A (en) * | 2018-09-10 | 2019-02-26 | 清华大学 | Implantation medical equipment intersects electric pulse detection method and equipment |
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| CN109381786B (en) * | 2018-09-10 | 2023-10-31 | 清华大学 | System for detecting cross electrical pulse performance of implantable medical devices |
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