CN204708847U - A kind of adjustable human body surface myoelectric signal acquiring system - Google Patents
A kind of adjustable human body surface myoelectric signal acquiring system Download PDFInfo
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- CN204708847U CN204708847U CN201520242897.9U CN201520242897U CN204708847U CN 204708847 U CN204708847 U CN 204708847U CN 201520242897 U CN201520242897 U CN 201520242897U CN 204708847 U CN204708847 U CN 204708847U
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Abstract
The utility model discloses a kind of adjustable human body surface myoelectric signal acquiring system, it is characterized in that: comprise electrical switch, amplification filtering module, analog-to-digital conversion module, driving switch and MCU module, electrical switch, amplification filtering module, analog-to-digital conversion module are connected successively, electrical switch is also connected with MCU module, analog-to-digital conversion module outfan is connected with MCU module, and driving switch is connected with MCU module.This utility model places a GSS Gear Select Switch in circuit, and user, before acquired signal, selects different port numbers by switch, can not only accurate acquisition to human body surface myoelectric signal, and the signalling channel number of acquisition system can easily be regulated.It is novel in design, structure is simple, easy to use, motility is good, result of use is good.
Description
Technical field
This utility model relates to human body surface signals collecting field, especially relates to a kind of adjustable human body surface myoelectric signal acquiring system.
Background technology
Electromyographic signal (EMG) is moving cell action potential (MUAP) superposition over time and space in numerous muscle fiber.Surface electromyogram signal (SEMG) is that in superficial muscular EMG and nerve trunk, electrical activity, at the comprehensive effect of skin surface, can reflect nervimuscular activity to a certain extent; In measurement, there is Noninvasive, hurtless measure, simple operation and other advantages relative to needle electrode EMG, SEMG.Thus, SEMG all has important practical value in clinical medicine, man-machine efficacy, rehabilitation medicine and sports science etc.
According to nervous physiology knowledge, muscle action potential will produce the electric potential difference of-90mV to 30mV, because human body is the non-conductor (internal resistance of the 1M order of magnitude) of electricity, therefore can only obtain the peak value of about 1mV from the patch electrode of body surface.According to document, in SEMG, often mix the interfering signal of very low frequency (close to direct current) and high frequency, and effective electromyographic signal spectrum distribution is between 10-500Hz.Therefore be generally made up of patch electrode, amplifying circuit, filter circuit, A/D convertor circuit, software section from the signal that patch electrode detects.Patch electrode is placed in human body surface, when muscular movement, its motor message can be collected, and do visual display and preservation.But, when needs gather human body surface myoelectric signal, the electromyographic signal of one piece of muscle sometimes only need be gathered, and polylith muscle really sometimes.General surface myoelectric acquisition system can easily not regulate the signalling channel number of acquisition system, causes difficulty to data acquisition.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of adjustable human body surface myoelectric signal acquiring system is provided, this utility model can not only accurate acquisition to human body surface myoelectric signal, and the signalling channel number of acquisition system can easily be regulated.It is novel in design, structure is simple, easy to use, motility is good, result of use is good.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of adjustable human body surface myoelectric signal acquiring system, it is characterized in that: comprise electrical switch, amplification filtering module, analog-to-digital conversion module, driving switch and MCU module, described electrical switch, amplification filtering module, analog-to-digital conversion module are connected successively, described electrical switch is also connected with MCU module, described analog-to-digital conversion module outfan is connected with MCU module, and described driving switch is connected with MCU module.
The adjustable human body surface myoelectric signal acquiring system of above-mentioned one, is characterized in that: described MCU module is connected with host computer.
The adjustable human body surface myoelectric signal acquiring system of above-mentioned one, is characterized in that: described MCU module is connected by MAX232 electrical level transferring chip with host computer.
The adjustable human body surface myoelectric signal acquiring system of above-mentioned one, is characterized in that: described electrical switch front end is connected with electrode signal amplifying circuit, patch electrode successively.
This utility model compared with prior art has the following advantages:
This utility model places a GSS Gear Select Switch in circuit, and user, before acquired signal, selects different port numbers by switch, can not only accurate acquisition to human body surface myoelectric signal, and the signalling channel number of acquisition system can easily be regulated.It is novel in design, structure is simple, easy to use, motility is good, result of use is good.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is electromyographic signal collection system architecture diagram of the present utility model;
Fig. 2 is driving switch and the MCU catenation principle figure of Fig. 1.
Detailed description of the invention
As shown in Figure 1, a kind of adjustable human body surface myoelectric signal acquiring system, it is characterized in that: comprise electrical switch 1, amplification filtering module 2, analog-to-digital conversion module 3, driving switch 4 and MCU module 5, described electrical switch 1, amplification filtering module 2, analog-to-digital conversion module 3 are connected successively, described electrical switch 1 is also connected with MCU module 5, described analog-to-digital conversion module 3 outfan is connected with MCU module 5, and described driving switch 4 is connected with MCU module 5.
In the present embodiment, described MCU module 5 is connected with host computer.MCU module 5 is connected by MAX232 electrical level transferring chip with host computer.
In the present embodiment, described electrical switch 1 front end is connected with electrode signal amplifying circuit, patch electrode successively.
The present embodiment places a GSS Gear Select Switch in circuit, and user, before acquired signal, selects different port numbers by driving switch, and this driving switch is connected with slave computer MCU.Identify by MCU the port number that user will use, thus do AD conversion for corresponding channel signal.
As shown in Figure 2, port number regulates and realizes mainly through regulation stall switch, driving switch connects the different pins of MCU, toggle switch, change MCU respective pins level, MCU just can detect the required signalling channel number gathered of user, then controls corresponding A/D chip and do digital-to-analogue conversion, and to host computer sendaisle number mark.Again when display waveform and preservation data, the data of each passage are shown separately and preservation by the port number mark that host computer sends according to slave computer.
The above; it is only preferred embodiment of the present utility model; not this utility model is imposed any restrictions; every above embodiment is done according to this utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (4)
1. an adjustable human body surface myoelectric signal acquiring system, it is characterized in that: comprise electrical switch (1), amplification filtering module (2), analog-to-digital conversion module (3), driving switch (4) and MCU module (5), described electrical switch (1), amplification filtering module (2), analog-to-digital conversion module (3) are connected successively, described electrical switch (1) is also connected with MCU module (5), described analog-to-digital conversion module (3) outfan is connected with MCU module (5), and described driving switch (4) is connected with MCU module (5).
2. according to the adjustable human body surface myoelectric signal acquiring system of one according to claim 1, it is characterized in that: described MCU module (5) is connected with host computer.
3. according to the adjustable human body surface myoelectric signal acquiring system of one according to claim 1, it is characterized in that: described MCU module (5) is connected by MAX232 electrical level transferring chip with host computer.
4. according to the adjustable human body surface myoelectric signal acquiring system of one according to claim 1, it is characterized in that: described electrical switch (1) front end is connected with electrode signal amplifying circuit, patch electrode successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520242897.9U CN204708847U (en) | 2015-04-21 | 2015-04-21 | A kind of adjustable human body surface myoelectric signal acquiring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520242897.9U CN204708847U (en) | 2015-04-21 | 2015-04-21 | A kind of adjustable human body surface myoelectric signal acquiring system |
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| CN204708847U true CN204708847U (en) | 2015-10-21 |
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| CN201520242897.9U Expired - Fee Related CN204708847U (en) | 2015-04-21 | 2015-04-21 | A kind of adjustable human body surface myoelectric signal acquiring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104783790A (en) * | 2015-04-21 | 2015-07-22 | 广东工业大学 | Adjustable human body surface electromyogram signal collecting system |
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2015
- 2015-04-21 CN CN201520242897.9U patent/CN204708847U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104783790A (en) * | 2015-04-21 | 2015-07-22 | 广东工业大学 | Adjustable human body surface electromyogram signal collecting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Hanwu Inventor after: Wei Yuwei Inventor after: He Hanwu, Wei Yuwei, He Xiaoyao Inventor before: He Xiaoyao Inventor before: Wei Yuwei Inventor before: He Xiaoyao, Wei Yuwei, He Hanwu |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160421 |