CN102370463A - Physiological signal non-contact acquisition method and non-contact sensor - Google Patents
Physiological signal non-contact acquisition method and non-contact sensor Download PDFInfo
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- CN102370463A CN102370463A CN201110255341XA CN201110255341A CN102370463A CN 102370463 A CN102370463 A CN 102370463A CN 201110255341X A CN201110255341X A CN 201110255341XA CN 201110255341 A CN201110255341 A CN 201110255341A CN 102370463 A CN102370463 A CN 102370463A
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- physiological signal
- tensile force
- telecommunication
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Abstract
The invention discloses a physiological signal non-contact acquisition method and a non-contact sensor. The method comprises the following steps of: acquiring human body pressure and converting the human body pressure into tensile force; and generating an electric signal according to the tensile force and processing to acquire a physiological signal of a human body. In the invention, by acquiring the human body pressure and performing corresponding processing, the physiological signal of the human body is acquired in a non-direct contact mode with skin of the human body, so that the acquisition of the physiological signal is more convenient and faster.
Description
Technical field
The present invention relates to physiological signal and gather the field, specially refer to a kind of physiological signal noncontact acquisition method and non-contact sensor.
Background technology
Physiology signal harvester of the prior art; Need be through signal electrode be closely contacted with human body skin; Handle to gather the pressure signal that muscle produces and to convert the signal of telecommunication into, obtain the physiological signal that body weight for humans is wanted, such as physiological signals such as heart beating, breathing and tics.
Above-mentioned physiology signal harvester need closely contact with human body skin in the gatherer process that carries out physiological signal, in use will bring inconvenience to user; Simultaneously; Need during collection signal electrode is sticked in the human body skin surface; Maybe be owing to the not equal reason in the human body skin position of pasting forms different impedance at every turn; Thereby intensity (amplitude) instability of the signal that causes gathering makes and possibly can't accurately collect needed physiological signal, such as the strength signal of heart beating etc.
Summary of the invention
Main purpose of the present invention promotes the convenience that physiological signal is gathered for a kind of physiological signal noncontact acquisition method is provided.
The present invention proposes a kind of physiological signal noncontact acquisition method, comprises step:
Obtain the human pressure, and convert said human pressure into tensile force;
Obtain the physiological signal of human body according to the said tensile force generation signal of telecommunication and after handling.
Preferably, said processing comprises amplification, filtering and the A/D conversion of the signal of telecommunication.
Preferably, said method also comprises:
Through wireless transparent transmission said physiological signal is exported.
The present invention also proposes a kind of non-contact sensor, comprising:
The tensile force converting unit is obtained the human pressure, and converts said human pressure into tensile force;
Signal produces and processing unit, obtains the physiological signal of human body according to the said tensile force generation signal of telecommunication and after handling.
Preferably, said signal generation and processing unit comprise:
Pick off produces analog electrical signal according to said tensile force;
Signal amplification circuit amplifies said analog electrical signal;
Filter circuit carries out filtering to the analog electrical signal after amplifying, and obtains the physiological signal of needed human body;
The A/D change-over circuit converts filtered analog electrical signal into digital signal.
Preferably, said non-contact sensor also comprises:
Wireless transparent transmission circuit is exported said digital signal through wireless transparent transmission.
Preferably, said non-contact sensor also comprises:
Power subsystem provides power supply;
PMU is managed said power subsystem.
Preferably, said power subsystem comprises accumulator.
The present invention is through obtaining the human pressure and carry out corresponding conversion, thereby obtains the physiological signal of human body with the non-mode that directly contacts with human body skin, makes obtaining of physiological signal more convenient; Simultaneously, use wireless technology that the physiological signal that obtains is transferred to remote equipment, signals collecting is separated with operations such as further analysis or storage and uniform, further facilitate the collection of physiological signal.
Description of drawings
Fig. 1 is the steps flow chart sketch map of physiological signal noncontact acquisition method one embodiment of the present invention;
Fig. 2 is the hardware structure sketch map of physiological signal noncontact acquisition method one embodiment of the present invention;
Fig. 3 is the steps flow chart sketch map of another embodiment of physiological signal noncontact acquisition method of the present invention;
Fig. 4 is the hardware structure sketch map of another embodiment of physiological signal noncontact acquisition method of the present invention;
Fig. 5 is the structural representation of non-contact sensor one embodiment of the present invention;
Fig. 6 is that signal produces and the structural representation of processing unit among non-contact sensor one embodiment of the present invention;
Fig. 7 is that signal produces and another structural representation of processing unit among non-contact sensor one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1, a kind of physiological signal noncontact of the present invention acquisition method one embodiment is proposed.This method can comprise:
Step S10, obtain the human pressure, and convert said human pressure into tensile force;
Step S11, according to said tensile force produce the signal of telecommunication and handle after obtain the physiological signal of human body.
Collection to physiological signal in the prior art need directly contact with skin usually; Physiological signal noncontact acquisition method in the present embodiment can obtain the human pressure and convert tensile force into through non-direct contact; Produce the signal of telecommunication according to tensile force again, can obtain the physiological signal of human body after treatment.This processing can comprise the operations such as amplification, filtering and A/D (analog/digital) conversion of the signal of telecommunication.Above-mentioned physiological signal comprises signals such as breathing, heart beating, tic and motion.
With reference to Fig. 2, the hardware structure that needs in the present embodiment to use comprises: tensile force converting unit 21, pick off 22, signal amplification circuit 23, filter circuit 24 and A/D change-over circuit 25 etc.
The contour structures of above-mentioned tensile force converting unit 21 can be the waveform flexible body, can be arranged in the daily apparatus such as mattress, seat cushion, back cushion and callosity, is used for when user uses above-mentioned daily apparatus, obtaining the human pressure of user.Because this wave zone can convert pressure into tensile force behind the waveform flexible body pressurized, therefore can convert the human pressure into tensile force through 21 of this tensile force converting units.User can use in daily life whenever and wherever possible, and is very convenient.
The sensor 22 can be connected with above-mentioned tensile force converting unit 21, and the tensile force that 21 conversions obtain according to above-mentioned tensile force converting unit produces the signal of telecommunication, accomplishes the conversion of (stretching) force signal to the signal of telecommunication.This pick off 22 can be the sensing element that can tensile force be converted into the signal of telecommunication arbitrarily.This signal of telecommunication is generally analogue signal.
Above-mentioned signal amplification circuit 23 can be connected with the sensor 22, and the signal of telecommunication that this pick off 22 is produced amplifies, so that this signal of telecommunication is carried out filtering operation.The amplification degree of 23 pairs of signals of telecommunication of this signal amplification circuit can be decided according to concrete needs.
Above-mentioned filter circuit 24 can be connected with above-mentioned signal amplification circuit 23, and the signal of telecommunication after this signal amplification circuit 23 is amplified carries out filtering.This filter circuit 24 can filter the unwanted signal frequency range through relevant parameter is set, and obtains the signal of telecommunication that needs, and such as the signal that can filter out outside 0.7Hz～3Hz, (frequency is generally 0.7Hz～3Hz) to obtain heartbeat signal.This filter circuit 24 can be through being provided with parameters such as frequency, obtains needed physiological signal thereby the signal of telecommunication filtered.
Above-mentioned A/D change-over circuit 25 can be connected with above-mentioned filter circuit 24, can the filtered signal of telecommunication be carried out the conversion of analogue signal to digital signal.Because the signal of telecommunication that the sensor 22 is produced is generally analog electrical signal, then this filtered signal of telecommunication also is an analog electrical signal.This A/D change-over circuit 25 can convert this analog electrical signal into digital signal, operations such as convenient further processing and transmission to signal.
With reference to Fig. 3, in another embodiment, said method also can comprise:
Step S12, said physiological signal is exported through wireless transparent transmission.
The convenience of gathering for the physiological signal of enhances human body can separate the further analysis of the collection of physiological signal and physiological signal or storage and uniform etc.After collecting needed physiological signal, can this physiological signal be transferred to remote equipment through wireless transparent transmission technology, further to analyze or storage and uniform etc.Realize the wireless transparent transmission of this physiological signal, need on above-mentioned hardware structure, to set up wireless transparent transmission circuit 26.(with reference to Fig. 4)
Above-mentioned physiological signal noncontact acquisition method through obtaining the human pressure and carry out corresponding conversion, thereby obtains the physiological signal of human body with the non-mode that directly contacts with human body skin, makes obtaining of physiological signal more convenient; Simultaneously, use wireless technology that the physiological signal that obtains is transferred to remote equipment, signals collecting is separated with operations such as further analysis or storage and uniform, further facilitate the collection of physiological signal.
With reference to Fig. 5, an embodiment of a kind of non-contact sensor 30 of the present invention is proposed.This non-contact sensor 30 can comprise: tensile force converting unit 31 and signal generation and processing unit 32 etc.; This tensile force converting unit 31 is obtained the human pressure, and converts said human pressure into tensile force; This signal produces and processing unit 32, obtains the physiological signal of human body according to the said tensile force generation signal of telecommunication and after handling.
With reference to Fig. 6, above-mentioned signal produces and processing unit 32 further comprises: pick off 321, signal amplification circuit 322, filter circuit 323 and A/D change-over circuit 324; This pick off 321 produces analog electrical signal according to said tensile force; This signal amplification circuit 322 amplifies said analog electrical signal; This filter circuit 323 carries out filtering to the analog electrical signal after amplifying, and obtains the physiological signal of needed human body; This A/D change-over circuit 324 converts filtered analog electrical signal into digital signal.
The contour structures of above-mentioned tensile force converting unit 31 can be the waveform flexible body, can be arranged in the daily apparatus such as mattress, seat cushion, back cushion and callosity, is used for when user uses above-mentioned daily apparatus, obtaining the human pressure of user.Because this wave zone can convert pressure into tensile force behind the waveform flexible body pressurized, therefore can convert the human pressure into tensile force through 31 of this tensile force converting units.User can use in daily life whenever and wherever possible, and is very convenient.
The sensor 321 can be connected with above-mentioned tensile force converting unit 31, and the tensile force that 31 conversions obtain according to above-mentioned tensile force converting unit produces the signal of telecommunication, accomplishes the conversion of (stretching) force signal to the signal of telecommunication.This pick off 321 can be the sensing element that can tensile force be converted into the signal of telecommunication arbitrarily.This signal of telecommunication is generally analogue signal.
Above-mentioned signal amplification circuit 322 can be connected with the sensor 321, and the signal of telecommunication that this pick off 321 is produced amplifies, so that this signal of telecommunication is carried out filtering operation.The amplification degree of 322 pairs of signals of telecommunication of this signal amplification circuit can be decided according to concrete needs.
Above-mentioned filter circuit 323 can be connected with above-mentioned signal amplification circuit 322, and the signal of telecommunication after this signal amplification circuit 322 is amplified carries out filtering.This filter circuit 323 can filter the unwanted signal frequency range through relevant parameter is set, and obtains the signal of telecommunication that needs, and such as the signal that can filter out outside 0.7Hz～3Hz, (frequency is generally 0.7Hz～3Hz) to obtain heartbeat signal.This filter circuit 323 can be through being provided with parameters such as frequency, obtains needed physiological signal thereby the signal of telecommunication filtered.
Above-mentioned A/D change-over circuit 324 can be connected with above-mentioned filter circuit 323, can the filtered signal of telecommunication be carried out the conversion of analogue signal to digital signal.Because the signal of telecommunication that the sensor 321 is produced is generally analog electrical signal, then this filtered signal of telecommunication also is an analog electrical signal.This A/D change-over circuit 324 can convert this analog electrical signal into digital signal, operations such as convenient further processing and transmission to signal.
With reference to Fig. 7, in another embodiment, above-mentioned non-contact sensor 30 also comprises: wireless transparent transmission circuit 325, said digital signal is exported through wireless transparent transmission.
The convenience of gathering for the physiological signal of enhances human body can separate the further analysis of the collection of physiological signal and physiological signal or storage and uniform etc.After collecting needed physiological signal, can this physiological signal be transferred to remote equipment through above-mentioned wireless transparent transmission circuit 325, further to analyze or storage and uniform etc.
Above-mentioned non-contact sensor 30 also comprises: power subsystem and PMU; This power subsystem provides power supply; This PMU is managed said power subsystem.
Above-mentioned power subsystem can be accumulator, can be above-mentioned non-contact sensor 30 power supply is provided.This non-contact sensor 30 is managed this accumulator through above-mentioned PMU.
Above-mentioned power subsystem also can be the link that connects external power source, is that above-mentioned non-contact sensor 30 provides power supply through inserting external power source.This non-contact sensor 30 is managed this link through above-mentioned PMU.
Above-mentioned non-contact sensor 30 through obtaining the human pressure and carry out corresponding conversion, thereby obtains the physiological signal of human body with the non-mode that directly contacts with human body skin, makes obtaining of physiological signal more convenient; Simultaneously, use wireless technology that the physiological signal that obtains is transferred to remote equipment, signals collecting is separated with operations such as further analysis or storage and uniform, further facilitate the collection of physiological signal.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes description of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (8)
1. a physiological signal noncontact acquisition method is characterized in that, comprises step:
Obtain the human pressure, and convert said human pressure into tensile force;
Obtain the physiological signal of human body according to the said tensile force generation signal of telecommunication and after handling.
2. physiological signal noncontact acquisition method according to claim 1 is characterized in that, said processing comprises amplification, filtering and the A/D conversion of the signal of telecommunication.
3. physiological signal noncontact acquisition method according to claim 1 and 2 is characterized in that said method also comprises:
Through wireless transparent transmission said physiological signal is exported.
4. a non-contact sensor is characterized in that, comprising:
The tensile force converting unit is obtained the human pressure, and converts said human pressure into tensile force;
Signal produces and processing unit, obtains the physiological signal of human body according to the said tensile force generation signal of telecommunication and after handling.
5. non-contact sensor according to claim 4 is characterized in that, said signal produces and processing unit comprises:
Pick off produces analog electrical signal according to said tensile force;
Signal amplification circuit amplifies said analog electrical signal;
Filter circuit carries out filtering to the analog electrical signal after amplifying, and obtains the physiological signal of needed human body;
The A/D change-over circuit converts filtered analog electrical signal into digital signal.
6. according to claim 4 or 5 described non-contact sensors, it is characterized in that said non-contact sensor also comprises:
Wireless transparent transmission circuit is exported said digital signal through wireless transparent transmission.
7. according to claim 4 or 5 described non-contact sensors, it is characterized in that said non-contact sensor also comprises:
Power subsystem provides power supply;
PMU is managed said power subsystem.
8. non-contact sensor according to claim 7 is characterized in that said power subsystem comprises accumulator.
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| CN201110255341XA CN102370463A (en) | 2011-08-31 | 2011-08-31 | Physiological signal non-contact acquisition method and non-contact sensor |
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| CN201110255341XA CN102370463A (en) | 2011-08-31 | 2011-08-31 | Physiological signal non-contact acquisition method and non-contact sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013029408A1 (en) * | 2011-08-31 | 2013-03-07 | 深圳市视聆科技开发有限公司 | Wave-shaped physiological signal acquisition device and physiological signal acquisition mattress |
| CN104605822A (en) * | 2015-01-28 | 2015-05-13 | 杨松 | Supporting body and mattress |
| CN106037646A (en) * | 2016-05-23 | 2016-10-26 | 深圳和而泰智能控制股份有限公司 | Physiological signal acquisition device and mattress |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013029408A1 (en) * | 2011-08-31 | 2013-03-07 | 深圳市视聆科技开发有限公司 | Wave-shaped physiological signal acquisition device and physiological signal acquisition mattress |
| CN104605822A (en) * | 2015-01-28 | 2015-05-13 | 杨松 | Supporting body and mattress |
| CN104605822B (en) * | 2015-01-28 | 2018-08-17 | 昆山合才智能科技有限公司 | supporting body and mattress |
| CN106037646A (en) * | 2016-05-23 | 2016-10-26 | 深圳和而泰智能控制股份有限公司 | Physiological signal acquisition device and mattress |
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Application publication date: 20120314 |
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