CN102846317A - Wearing-type electromyographic signal acquisition system - Google Patents
Wearing-type electromyographic signal acquisition system Download PDFInfo
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- CN102846317A CN102846317A CN2012102494755A CN201210249475A CN102846317A CN 102846317 A CN102846317 A CN 102846317A CN 2012102494755 A CN2012102494755 A CN 2012102494755A CN 201210249475 A CN201210249475 A CN 201210249475A CN 102846317 A CN102846317 A CN 102846317A
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Abstract
The invention discloses a wearing-type electromyographic signal acquisition system, which comprises a wristlet signal preamplifier and a signal processing device, wherein the wristlet signal preamplifier and the signal processing device are connected through a flexible flat cable; the wristlet signal preamplifier enhances the anti-interference capacity of the system through preprocessing an electromyographic signal of a skin surface, and transmits a processed signal to a signal processing device; and the signal processing device transits, through analog-to-digital conversion and via Bluetooth, a signal to a computer for processing. The wearing-type electromyographic signal acquisition system provided by the invention uses a silver-coated copper wire to replace the traditional gel electrode and adopts the preamplification strategy, thus greatly increasing the use convenience of the electromyographic signal acquisition device under the condition that little signal quality is reduced; a user can use the electromyographic signal acquisition device to obtain the electromyographic signal with good quality without rigid skin surface cleaning; and thus the wearing-type electromyographic signal acquisition system provided by the invention is convenient and easy to use and low in cost.
Description
Technical field
The present invention relates to the system of Medical Technology and fields of measurement, specifically a kind of skin surface electromyographic signal collection system of non-damage.
Background technology
Electromyographic signal is the integrated of a series of motor unit action potentiales, and it has embodied the response of muscle to neural impulse.Since the electromyographic signal sensor was invented, it had been widely used in the fields such as medical treatment, bio electricity feedback and athletic training, is used for measuring the signal of telecommunication that muscle produces when shrinking.Traditional electromyographic signal collection system contacts with skin by Signa Gel the signal leading difference amplifier is gathered.It is extremely loaded down with trivial details using the process of gel electrode, and gel electrode is difficult to be reused simultaneously, and most applications is next to be disposable.Although gel electrode can guarantee and good the contacting of skin, and ensures signal quality to a certain extent, use procedure loaded down with trivial details so that it be difficult to be widely used.There are some researches show also that in the disturbance situation characteristic of the easy deformation of gel is so that the signal that gathers can be received very large impact equally.So, adopt metal as the equipment of electrode and contact skin become exceed add extensive.
Along with medical treatment and research field for the increase in demand of electromyographic signal collection system, a lot of companies have developed corresponding commercial product, such as DELSYS company a lot of EMG(electromyographic signals for different application are just arranged) acquisition system.But these products still need special glue that electrode is bonded on the arm in use, and the acquisition channel of portable product is less, simultaneously whole system still comparatively huge being unsuitable for carry, whole on the high side.
Summary of the invention
The present invention is directed to above shortcomings in the prior art, a kind of Worn type electromyographic signal collection system is provided.Gather by dried electrode pair signal, send data by bluetooth.Whole system is more portable, and cost is lower.
The present invention is achieved by the following technical solutions:
A kind of Worn type electromyographic signal collection system comprises two parts of wrist carried advance signal amplifying device and signal processing apparatus, and wherein, wrist carried advance signal amplifying device and signal processing apparatus are by the FPC(flexible flat cable) be connected;
Described wrist carried advance signal amplifying device, the effects on surface electromyographic signal is carried out preliminary filtering and processing and amplifying;
Described signal processing apparatus, the signal that described wrist carried advance signal amplifying device is transmitted carries out further filtering, amplification and analog digital conversion, is sent to computer or other terminal by bluetooth.
Described wrist carried advance signal amplifying device comprises a plurality of amplifiers, can gather simultaneously the electromyographic signal of a plurality of passages.
Described a plurality of amplifier is fixed on a diverse location on the resilient bandage, to gather the surface electromyogram signal of relevant position.
Described amplifier adopts the differential amplification pattern, and the contact parts of skin uses three silver-plated copper electrodes.
Described each amplifier is delivered to a line collecting plate by a FPC with preliminary amplifying signal respectively first, by a FPC the preliminary amplifying signal of a plurality of passages is passed to signal processing apparatus again.
Described signal processing apparatus adopts parallel sampling A/D chip, simultaneously multiple signals is carried out analog digital conversion, and the signal after will changing by bluetooth is sent to computer or other-end.
One of described bandage has VELCRO, can after bandage takes up bandage be fixed.
Described system is bandpass characteristics, and passband is 20～500Hz.
Be compared with existing technology, the present invention has the following advantages:
(1) use is easier.Adopt preposition amplification strategy, use metal electrode to replace the Signa Gel electrode, greatly improved the portability of using.Almost can think disposablely because electrode slice is attached to method on the skin, before each the use, also needing to prepare new paster, and metal electrode then can be reused as a kind of dried electrode.Simultaneously, when port number was more, the wire harness Large Amplitude Motion that also can limit hand mixed in together brought inconvenience to use.And native system adopts FPC to come transmission of signal, and a FPC is only arranged between adapting amplifier device and signal processing apparatus, and whole system is more succinct, thus the problem of having avoided wire harness to mix.
(2) port number is more, and quantity of information is larger.Native system can have a plurality of passages, can more comprehensively collect the brachiocubital electromyographic signal of hands, makes subsequent treatment more reliable.
(3) portable performance is improved.The present invention has obviously improved ease for use and the portability of system, and the interface of bluetooth has widely prospect of the application so that more terminal can support the use with native system.Adopt elastic bands to a certain degree to stretch, adapt to the crowd of different forearm thicknesses.Because acquisition system has been fixed on the arm, whole device is very light again simultaneously, can cause interference to wearer's action hardly after finishing wearing, and the wearer can arbitrarily walk about or do other inviolent actions.
(4) than like product both domestic and external, the cost of this invention is cheaper.
Description of drawings
Fig. 1 is the block diagram of system of the present invention;
Fig. 2 is the sketch map of advance signal amplifying device among Fig. 1;
Among the figure, 4 is preamplifier, and 5 is elastic bands, and 6 is VELCRO
Fig. 3 is the sketch map of preamplifier among Fig. 2;
Among the figure, 7 is metal electrode
Fig. 4 is the native system structural representation;
Among the figure, 1 is the advance signal amplifying device; 2 is flexible flat cable; 3 is signal processing apparatus
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment technical solution of the present invention is done a detailed explanation:
As shown in Figure 1, native system is to be attached to the collection of carrying out electromyographic signal on the forearm muscle by metal electrode.Comprise two parts of wrist carried advance signal amplifying device and signal processing apparatus, wherein, wrist carried advance signal amplifying device, the effects on surface electromyographic signal is carried out preliminary filtering and processing and amplifying.Signal processing apparatus, the signal that wrist carried advance signal amplifying device is transmitted carries out further filtering, amplification and analog digital conversion, is sent to other terminals such as computer or mobile phone by bluetooth.Be connected by FPC between wrist carried advance signal amplifying device and the signal processing apparatus.
As shown in Figure 2, in the present embodiment, the advance signal amplifying device has altogether 8 preamplifiers, and the size of each amplifier is 27mm * 19mm * 8mm; Adopted the differential amplification pattern.The contact parts of skin has three silver-plated copper metal electrodes 7 on each amplifier, and wherein two are used for the difference input, and one is the earth polar reference point.Two difference input electrode spacings are 10mm, and the spacing of another electrode and a nearest singal input electrode is 6mm.
As shown in Figure 3,8 preamplifiers are fixed on the elastic bands 5.One of bandage has VELCRO 6, can after taking up bandage bandage be fixed.
As shown in Figure 4, advance signal amplifying device 1 is sent to 8 tunnel analogue signals in the signal processing apparatus 3.Signal processing apparatus 3 in the present embodiment is of a size of 69mm * 44mm * 27mm.Signal processing apparatus 3 has adopted parallel sampling A/D chip, simultaneously 8 road signals is carried out analog digital conversion, and sample frequency is 1000Hz, by bluetooth digital signal is sent to computer or other-end.The one side of signal processing apparatus 3 has VELCRO and is convenient to fix.
System of the present invention is bandpass characteristics, and passband is 20～500Hz.
The use procedure of system of the present invention may further comprise the steps:
1, forearm water or the ethanol of needs being worn this system clean a little.Wrist carried advance signal amplifying device 1 on arm and tighten up, is ridden on the bandage 5 VELCRO 6 with fixing.
2, manually adjust the position of each preamplifier 4, make the metal electrode 7 on it keep good contacting with skin.
3, wear the bandage with VELCRO 6 at the large arm of corresponding arm, utilize VELCRO that signal processing apparatus 3 is fixed on this bandage.
4, the switch on the opening signal blood processor 3, signal namely begin to send.In computer end or other-end is opened bluetooth and signal processing apparatus matches, can receive signal.
This device can gather the surface electromyogram signal of 8 passages simultaneously, for follow-up study, application provide possibility.Simple for use, and have preferably signal quality.
Above-described embodiment is interpreted as only being used for explanation the present invention and is not used in restriction protection scope of the present invention.After the content of having read the present invention's record, those skilled in the art can make various changes or modifications the present invention, and these equivalences change and modification falls into claim limited range of the present invention equally.
Claims (8)
1. Worn type electromyographic signal collection system, it is characterized in that, comprise two parts of wrist carried advance signal amplifying device and signal processing apparatus, wherein, wrist carried advance signal amplifying device and signal processing apparatus are by the FPC(flexible flat cable) be connected;
Described wrist carried advance signal amplifying device, the effects on surface electromyographic signal is carried out preliminary filtering and processing and amplifying;
Described signal processing apparatus, the signal that described wrist carried advance signal amplifying device is transmitted carries out further filtering, amplification and analog digital conversion, and is sent to computer or other terminal unit by bluetooth.
2. Worn type electromyographic signal collection according to claim 1 system is characterized in that described wrist carried advance signal amplifying device comprises a plurality of amplifiers, can gather simultaneously the electromyographic signal of a plurality of passages.
3. Worn type electromyographic signal collection according to claim 2 system is characterized in that described a plurality of amplifiers are fixed on a diverse location on the resilient bandage, to gather the surface electromyogram signal of relevant position.
4. Worn type electromyographic signal collection according to claim 2 system is characterized in that, described amplifier adopts the differential amplification pattern, and the contact parts of skin uses three silver-plated copper electrodes.
5. Worn type electromyographic signal collection according to claim 2 system, it is characterized in that, described each amplifier is delivered to a line collecting plate by a FPC with preliminary amplifying signal respectively first, by a FPC the preliminary amplifying signal of a plurality of passages is passed to signal processing apparatus again.
6. Worn type electromyographic signal collection according to claim 2 system, it is characterized in that, described signal processing apparatus adopts parallel sampling A/D chip, simultaneously multiple signals is carried out analog digital conversion, and the signal after will changing by bluetooth again is sent to computer or other-end.
7. Worn type electromyographic signal collection according to claim 3 system is characterized in that described bandage one headband has VELCRO, can after bandage takes up bandage be fixed.
8. Worn type electromyographic signal collection according to claim 1 system is characterized in that described system is bandpass characteristics, and passband is 20～500Hz.
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| CN2012102494755A CN102846317A (en) | 2012-07-18 | 2012-07-18 | Wearing-type electromyographic signal acquisition system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315737A (en) * | 2013-06-18 | 2013-09-25 | 上海交通大学 | Wearable multi-channel surface electromyogram signal collecting armlet |
| CN103393420A (en) * | 2013-07-30 | 2013-11-20 | 中国科学技术大学 | High-density active flexible electrode array and signal conditioning circuit thereof |
| CN103892825A (en) * | 2014-03-14 | 2014-07-02 | 浙江大学 | Electrocardiogram detecting device based on Bluetooth communication |
| CN105796098A (en) * | 2016-04-22 | 2016-07-27 | 深圳还是威健康科技有限公司 | Wearable device and method for measuring muscle action potential |
| CN105943042A (en) * | 2016-06-07 | 2016-09-21 | 中国人民解放军国防科学技术大学 | Operator-hand-behavior perception system based on electromyographic signals |
| CN106037730A (en) * | 2016-06-22 | 2016-10-26 | 吴建萍 | Electromyogram intelligent detection device |
| CN106137188A (en) * | 2015-04-10 | 2016-11-23 | 青岛智拓智能科技有限公司 | A kind of electromyographic signal transmission method and system |
| CN107198509A (en) * | 2016-08-26 | 2017-09-26 | 常州市钱璟康复股份有限公司 | Feature extracting method and system based on surface myoelectric |
| CN110811598A (en) * | 2019-11-14 | 2020-02-21 | 深圳先进技术研究院 | Wrist strap type biological signal acquisition equipment and manufacturing method thereof |
| CN110946577A (en) * | 2019-12-03 | 2020-04-03 | 南京航空航天大学 | Flexible circuit board device for collecting arm electromyographic signals |
| CN111714123A (en) * | 2020-07-22 | 2020-09-29 | 华南理工大学 | System and method for detecting human body waist and back surface electromyographic signals |
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| EP1708613B1 (en) * | 2004-01-15 | 2011-12-14 | Koninklijke Philips Electronics N.V. | Adaptive physiological monitoring system and methods of using the same |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315737B (en) * | 2013-06-18 | 2015-04-15 | 上海交通大学 | Wearable multi-channel surface electromyogram signal collecting armlet |
| CN103315737A (en) * | 2013-06-18 | 2013-09-25 | 上海交通大学 | Wearable multi-channel surface electromyogram signal collecting armlet |
| CN103393420A (en) * | 2013-07-30 | 2013-11-20 | 中国科学技术大学 | High-density active flexible electrode array and signal conditioning circuit thereof |
| CN103892825A (en) * | 2014-03-14 | 2014-07-02 | 浙江大学 | Electrocardiogram detecting device based on Bluetooth communication |
| CN103892825B (en) * | 2014-03-14 | 2016-03-02 | 浙江大学 | A kind of Electrocardiography equipment based on Bluetooth communication |
| CN106137188A (en) * | 2015-04-10 | 2016-11-23 | 青岛智拓智能科技有限公司 | A kind of electromyographic signal transmission method and system |
| CN105796098A (en) * | 2016-04-22 | 2016-07-27 | 深圳还是威健康科技有限公司 | Wearable device and method for measuring muscle action potential |
| CN105943042A (en) * | 2016-06-07 | 2016-09-21 | 中国人民解放军国防科学技术大学 | Operator-hand-behavior perception system based on electromyographic signals |
| CN106037730A (en) * | 2016-06-22 | 2016-10-26 | 吴建萍 | Electromyogram intelligent detection device |
| CN107198509A (en) * | 2016-08-26 | 2017-09-26 | 常州市钱璟康复股份有限公司 | Feature extracting method and system based on surface myoelectric |
| CN110811598A (en) * | 2019-11-14 | 2020-02-21 | 深圳先进技术研究院 | Wrist strap type biological signal acquisition equipment and manufacturing method thereof |
| CN110946577A (en) * | 2019-12-03 | 2020-04-03 | 南京航空航天大学 | Flexible circuit board device for collecting arm electromyographic signals |
| CN111714123A (en) * | 2020-07-22 | 2020-09-29 | 华南理工大学 | System and method for detecting human body waist and back surface electromyographic signals |
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Application publication date: 20130102 |