CN105249950A - Pressure signal acquisition device and human body physiology signal acquisition pad body - Google Patents
Pressure signal acquisition device and human body physiology signal acquisition pad body Download PDFInfo
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- CN105249950A CN105249950A CN201510732251.3A CN201510732251A CN105249950A CN 105249950 A CN105249950 A CN 105249950A CN 201510732251 A CN201510732251 A CN 201510732251A CN 105249950 A CN105249950 A CN 105249950A
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- 230000037086 body physiology Effects 0.000 title abstract 4
- 238000012545 processing Methods 0.000 claims abstract description 25
- 239000012528 membrane Substances 0.000 claims description 71
- 239000013013 elastic material Substances 0.000 claims description 24
- 230000035479 physiological effects, processes and functions Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 238000004148 unit process Methods 0.000 claims description 3
- 239000010409 thin film Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 10
- 230000035945 sensitivity Effects 0.000 description 8
- 239000002033 PVDF binder Substances 0.000 description 4
- 235000009392 Vitis Nutrition 0.000 description 4
- 241000219095 Vitis Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000010247 heart contraction Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241000282412 Homo Species 0.000 description 1
- 229920000079 Memory foam Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000008210 memory foam Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
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Abstract
The invention discloses a pressure signal acquisition device and a human body physiology signal acquisition pad body. The pressure signal acquisition device comprises a flexible closed cavity, a piezoelectric thin film and a signal processing unit, wherein a through hole is formed in the flexible closed cavity; the piezoelectric thin film seals the through hole; when the flexible closed cavity is squeezed by external force, the piezoelectric thin film deforms and generates corresponding electric signals; the signal processing unit receives the electric signals and carries out corresponding processing. According to the pressure signal acquisition device, the through hole is formed in the flexible closed cavity, the piezoelectric thin film seals the through hole, and the pressure to the piezoelectric thin film at the through hole greatly varies when the pressure to the large area of the surface of the flexible closed cavity slightly varies, so that the high-sensitivity sensing is realized. The human body physiology signal acquisition pad body provided with the pressure signal acquisition device can collect human body physiology signals on a flexible pad body in a high-sensitivity manner.
Description
Technical field
The present invention relates to physiology signal and gather field, particularly relate to pressure signal harvester and physiology signal collection pad.
Background technology
Physiology signal harvester of the prior art, need by by signal electrode and human body skin close contact, to gather pressure signal that muscle produces and to be converted to the signal of telecommunication and to process, obtain the physiological signal that body weight for humans is wanted, the physiological signals such as such as heart beating, breathing and tic.
Also has a kind of contactless physiology signal harvester at present, piezoelectric membrane film is attached in the lateral wall of a flexible utricule or medial wall, the physiological signal of human body can be collected equally, but, it is relatively not high to there is pressure signal collection sensitivity in it, when the heart beating of a user is on the weak side, or when breathing on the weak side, the respective signal of collection can be caused more weak, may occur that the situation of false judgment occurs.
Summary of the invention
Main purpose of the present invention gathers pad for providing a kind of highly sensitive pressure signal harvester and physiology signal.
In order to realize foregoing invention object, the invention provides a kind of pressure signal harvester, comprising flexible encapsulated cavity, piezoelectric membrane and signal processing unit;
Described flexible encapsulated cavity arranges through hole, and described piezoelectric membrane hides the described through hole of envelope;
When described flexible encapsulated cavity is subject to external force extruding, described piezoelectric membrane generation deformation produces the corresponding signal of telecommunication;
Described signal processing unit accepts the described signal of telecommunication and processes accordingly.
Further, elastic support is set in described flexible encapsulated cavity and supports described flexible encapsulated cavity; Or, fill ventilative elastic material in described flexible encapsulated cavity and support described flexible encapsulated cavity.
Further, the area of described through hole be less than described flexible encapsulated housing surface long-pending 1/10th.
Further, described flexible encapsulated cavity is oval ball, and described through hole is arranged at a major axis top of oval ball.
The present invention also provides a kind of physiology signal to gather pad, comprises flexible pad, pressure signal harvester and transport module;
Described pressure signal harvester comprises flexible encapsulated cavity, piezoelectric membrane and signal processing unit; Described flexible encapsulated cavity arranges through hole, and described piezoelectric membrane hides the described through hole of envelope; Described flexible encapsulated cavity is subject to external force extruding, and piezoelectric membrane produces the corresponding signal of telecommunication; Described signal processing unit accepts the described signal of telecommunication and carries out analyzing and processing;
Pressure signal harvester described at least one is set in described flexible pad; Information after described transport module receives described signal processing unit processes also spreads out of to outside corresponding receiving system.
Further, elastic support is set in described flexible encapsulated cavity and supports described flexible encapsulated cavity; Or, fill ventilative elastic material in described flexible encapsulated cavity and support described flexible encapsulated cavity.
Further, the area of described through hole be less than described flexible encapsulated housing surface long-pending 1/10th.
Further, described transport module is wireless transport module.
Further, the through hole of described flexible encapsulated cavity is towards vertical with the thickness direction of described flexible pad; In described flexible pad, corresponding described piezoelectric membrane place arranges groove.
Further, described pressure signal harvester becomes latticed and is arranged in described flexible pad.
Pressure signal harvester of the present invention, flexible encapsulated cavity arranges through hole, then piezoelectric membrane is hidden the described through hole of envelope, the faint change of the large-area pressure of flexible encapsulated housing surface, capital causes the larger change of the piezoelectric membrane pressure of through hole, thus realizes high-sensitive sensing.And the physiology signal that above-mentioned pressure signal harvester is housed gathers pad, can the physiological signal of human body on the flexible pad of highly sensitive collection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pressure signal harvester of one embodiment of the invention;
Fig. 2 is the structural representation of the pressure signal harvester of another embodiment of the present invention;
Fig. 3 is the structured flowchart of the physiology signal collection pad of one embodiment of the invention;
Fig. 4 is the structural representation of the physiology signal collection pad of one embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
With reference to Fig. 1, a kind of pressure signal harvester 1, comprises flexible encapsulated cavity 10, piezoelectric membrane 20 and signal processing unit; Described flexible encapsulated cavity 10 arranges through hole 11, and described piezoelectric membrane 20 hides the described through hole 11 of envelope; When described flexible encapsulated cavity 10 is subject to external force extruding, there is deformation and produce the corresponding signal of telecommunication in described piezoelectric membrane 20; Described signal processing unit accepts the described signal of telecommunication and processes accordingly.
Above-mentioned flexible encapsulated cavity 10 refers to that the cavity of deformation occurs a kind of being under pressure.Gassy or liquid in flexible encapsulated cavity 10, when pressure acts on flexible encapsulated cavity 10, when deformation occurs flexible encapsulated cavity 10, the gas of its inside or liquid can impact the sidewall of flexible encapsulated cavity 10.
Above-mentioned through hole 11 refers to the hole of the sidewall running through flexible encapsulated cavity 10.When pressure acts on flexible encapsulated cavity 10, when deformation occurs flexible encapsulated cavity 10, the gas of its inside or the sidewall of hydraulic shock flexible encapsulated cavity 10, if through hole 11 is not by shutoff, so gas or liquid using through hole 11 as giving vent to mouth, can be discharged in flexible encapsulated cavity 10; When through hole 11 is by shutoff, then the gas in flexible encapsulated cavity 10 or liquid can impact plug, and plug is under pressure.
Above-mentioned piezoelectric membrane 20 is generally piezoelectric polyvinylidene fluoride PVDF polymeric membrane, is that one is subject to External force interference and after being out of shape, can produces the thin film of corresponding electric signal, and it is larger that same piezoelectric membrane 20 has deformation, the feature that the signal of telecommunication of generation is larger.
Above-mentioned signal processing unit is the signal of telecommunication receiving piezoelectric membrane 20 generation, and to the unit that the signal of telecommunication processes, it can convert electrical signals to digital signal, also corresponding process can be carried out to the signal of telecommunication, as simple the signal of telecommunication carried out amplifying, the process such as filtering, if necessary, the data of needs can also be calculated, as when carrying out the work of human heart recovery, can be analyzed by the hrv parameter etc. of rescuer by the signal of telecommunication.
The pressure signal harvester 1 of the present embodiment, flexible encapsulated cavity 10 arranges through hole 11, then piezoelectric membrane 20 is hidden the described through hole 11 of envelope, the faint change of the large-area pressure on flexible encapsulated cavity 10 surface, capital causes the larger change of piezoelectric membrane 20 pressure at through hole 11 place, thus make piezoelectric membrane 20 produce the larger signal of telecommunication, improve the sensitivity of pressure acquisition, the convenient analysis of the larger signal of telecommunication.
In the present embodiment, elastic support is set in above-mentioned flexible encapsulated cavity 10 and supports described flexible encapsulated cavity 10; Elastic support can ensure that flexible encapsulated cavity 10 keeps shape, can not lose efficacy because flexible encapsulated cavity 10 slightly leaks gas.In one embodiment, it is flexible sack or bottle that flexible encapsulated cavity 10 can regard a sidewall as, in bag mouth or bottleneck, piezoelectric membrane 20 is set, elastic support is arranged in sack or bottle, sack or bottle are supported, when sack or bottle are squeezed, elastic support acting can be overcome, make gas in sack or bottle or liquid effects in piezoelectric membrane 20, piezoelectric membrane 20 is made to produce the signal of telecommunication, after the power of extruding is cancelled, flexible encapsulated cavity 10 restores to the original state by elastic support.
With reference to Fig. 2, in another embodiment, in the present embodiment, fill ventilative elastic material 12 in above-mentioned flexible encapsulated cavity 10 and support described flexible encapsulated cavity 10, elastic material 12 can ensure that flexible encapsulated cavity 10 keeps shape equally, can not lose efficacy because flexible encapsulated cavity 10 slightly leaks gas.The ventilative all right absorbing high-frequency signal of elastic material 12, can be applied to the collecting work of some low frequency signals, such as gather the breath signal etc. of human body.Described ventilative elastic material 12 can be restorable material of can trying one's best after the extruding such as sponge, cotton-wool, after flexible encapsulated cavity 10 is squeezed, gas in flexible encapsulated cavity 10 can extrude piezoelectric membrane 20 by ventilative elastic material 12, makes piezoelectric membrane 20 produce the signal of telecommunication.In one embodiment, flexible encapsulated cavity 10 can think that a sidewall is flexible sack or bottle, in bag mouth or bottleneck, piezoelectric membrane 20 is set, ventilative elastic material 12 is arranged in sack or bottle, sack or bottle are supported, when sack or bottle are squeezed, ventilative elastic material 12 can be overcome do work, make air effect in sack or bottle in piezoelectric membrane 20, piezoelectric membrane 20 is made to produce the signal of telecommunication, after the power of extruding is cancelled, spatial accommodation restores to the original state by ventilative elastic material 12.
In the present embodiment, the area of above-mentioned through hole 11 is less than 1/10th of described flexible encapsulated cavity 10 surface area, the inner wall area of flexible encapsulated cavity 10 and the area ratio of through hole 11 larger, then when flexible encapsulated cavity 10 is squeezed, the stressed rear deformation of piezoelectric membrane 20 is larger.In the present embodiment, the area of through hole 11 is less than 1/10th of described flexible encapsulated cavity 10 surface area, can ensure the sensitivity of pressure signal harvester 1.
In the present embodiment, above-mentioned flexible encapsulated cavity 10 is oval ball, and described through hole 11 is arranged at a major axis top of oval ball.Oval ball is when placing, and two major axis ends can be naturally unsettled, and prevent piezoelectric membrane 20 in placed side contact, when stressed extruding, the minor axis end of oval ball is more easily stressed.In other embodiments, flexible encapsulated cavity 10 can also be other shape, and as Fructus Vitis viniferae is granular, piezoelectric membrane 20 is arranged at the junction etc. of Fructus Vitis viniferae and vine.
In one embodiment, flexible encapsulated cavity 10 is oval spherical, in a longitudinal end of oval ball, a through hole 11 is set, through hole 11 place hides envelope piezoelectric membrane 20, the side of piezoelectric membrane 20 can be attached on the medial wall of flexible encapsulated cavity 10, and such piezoelectric membrane 20 is installed stable, is not easy to come off when stressed, also can be attached on the lateral wall of flexible encapsulated cavity 10, install simple and convenient.In flexible encapsulated cavity 10, fill ventilative elastic material 12 support described flexible encapsulated cavity 10, ventilative elastic material 12 can be the material such as sponge, Cotton Gossypii, when flexible encapsulated cavity 10 is squeezed, do work in ventilative elastic material 12, control simultaneously in flexible encapsulated cavity 10 can extrude piezoelectric membrane 20 through ventilative elastic material 12, make piezoelectric membrane 20 deformation occur and produce the corresponding signal of telecommunication, the signal of telecommunication can be received by signal processing unit and process.
In another specific embodiment, pressure signal harvester 1 also can connect a display module or transport module, the data after pressure signal harvester 1 process can be shown, or by transport module, the data of pressure signal harvester collection are sent on external process devices, carry out reprocessing analysis and display storage etc., can as a cardiac resuccitation checkout gear, when patient carries out first aid out of doors and needs cardiac resuccitation, rescuer can hand-held pressure signal harvester 1, then contacted with the chest of patient by pressure signal harvester 1, then pressing recovery heart is carried out, in pressing process, the heartbeat signal of the collection patient in pressure signal harvester 1 meeting moment and other pressure signals, then by corresponding algorithm, the signal collected is processed, obtain the heart rate signal etc. of patient, rescuer can be facilitated to understand the situation of patient, carry out corresponding process of suing and labouring, improve the successful of suing and labouring.
The pressure signal harvester 1 of the present embodiment, after can also being arranged in mattress under mattress, when human body couches on mattress, can the physiological signal of human body.
The pressure signal harvester 1 of the present embodiment, make full use of the flexibility of flexible encapsulated cavity 10, it is made to extrude inner air, place arranges piezoelectric membrane 20 with through hole 11, allow large area deformation make piezoelectric membrane 20 deformation quantity at through hole 11 place of small size larger, and then improve the sensitivity of pressure signal harvester 1.
With reference to Fig. 3, the embodiment of the present invention also provides a kind of physiology signal to gather pad, comprises flexible pad 2, pressure signal harvester 1 and transport module 3; Described pressure signal harvester 1 comprises flexible encapsulated cavity 10, piezoelectric membrane 20 and signal processing unit; Described flexible encapsulated cavity 10 arranges through hole 11, and described piezoelectric membrane 20 hides the described through hole 11 of envelope; Described flexible encapsulated cavity 10 is subject to external force extruding, and piezoelectric membrane 20 produces the corresponding signal of telecommunication; Described signal processing unit accepts the described signal of telecommunication and carries out analyzing and processing; Pressure signal harvester 1 described at least one is set in described flexible pad 2; Information after described transport module 3 receives described signal processing unit processes also spreads out of to outside corresponding receiving system.
Above-mentioned flexible encapsulated cavity 10 refers to that the cavity of deformation occurs a kind of being under pressure.Gassy or liquid in flexible encapsulated cavity 10, when pressure acts on flexible encapsulated cavity 10, when deformation occurs flexible encapsulated cavity 10, the gas of its inside or liquid can impact the sidewall of flexible encapsulated cavity 10.
Above-mentioned through hole 11 refers to the hole of the sidewall running through flexible encapsulated cavity 10.When pressure acts on flexible encapsulated cavity 10, when deformation occurs flexible encapsulated cavity 10, the gas of its inside or the sidewall of hydraulic shock flexible encapsulated cavity 10, if through hole 11 is not by shutoff, so gas or liquid using through hole 11 as giving vent to mouth, can be discharged in flexible encapsulated cavity 10; When through hole 11 is by shutoff, then the gas in flexible encapsulated cavity 10 or liquid can impact plug, and plug is under pressure.
Above-mentioned piezoelectric membrane 20 is generally piezoelectric polyvinylidene fluoride PVDF polymeric membrane, is that one is subject to External force interference and after being out of shape, can produces the thin film of corresponding electric signal, and it is larger that same piezoelectric membrane 20 has deformation, the feature that the signal of telecommunication of generation is larger.
Above-mentioned signal processing unit is the signal of telecommunication receiving piezoelectric membrane 20 generation, and to the unit that the signal of telecommunication processes, it can convert electrical signals to digital signal, also corresponding process can be carried out to the signal of telecommunication, as simple the signal of telecommunication carried out amplifying, the process such as filtering, if necessary, the data of needs can also be calculated, as when carrying out the work of human heart recovery, can be analyzed by the hrv parameter etc. of rescuer by the signal of telecommunication.
Above-mentioned flexible pad 2 is that one is under pressure and relative deformation can occurs, and cancels and regrets restorable pad, as common memory foam pad, sping mattress etc. when on the pressure side.
Above-mentioned transport module 3 a kind ofly the data that collect of pressure signal harvester 1 can be transferred to the module of external reception device, and it can be wire transmission module 3, also can be wireless transport module 3.
In the present embodiment, elastic support is set in above-mentioned flexible encapsulated cavity 10 and supports described flexible encapsulated cavity 10; Elastic support can ensure that flexible encapsulated cavity 10 keeps shape, can not lose efficacy because flexible encapsulated cavity 10 slightly leaks gas.In one embodiment, it is flexible sack or bottle that flexible encapsulated cavity 10 can regard a sidewall as, in bag mouth or bottleneck, piezoelectric membrane 20 is set, elastic support is arranged in sack or bottle, sack or bottle are supported, when sack or bottle are squeezed, elastic support acting can be overcome, make gas in sack or bottle or liquid effects in piezoelectric membrane 20, piezoelectric membrane 20 is made to produce the signal of telecommunication, after the power of extruding is cancelled, flexible encapsulated cavity 10 restores to the original state by elastic support.During physiological signal collection pad life-time service, when flexible encapsulated cavity 10 slightly leaks gas, still can continue to use.
With reference to Fig. 2, in another embodiment, in the present embodiment, fill ventilative elastic material 12 in above-mentioned flexible encapsulated cavity 10 and support described flexible encapsulated cavity 10, elastic material 12 can ensure that flexible encapsulated cavity 10 keeps shape equally, can not lose efficacy because flexible encapsulated cavity 10 slightly leaks gas.The ventilative all right absorbing high-frequency signal of elastic material 12, can be applied to the collecting work of some low frequency signals, such as gather the breath signal etc. of human body.Described ventilative elastic material 12 can be restorable material of can trying one's best after the extruding such as sponge, cotton-wool, after flexible encapsulated cavity 10 is squeezed, gas in flexible encapsulated cavity 10 can extrude piezoelectric membrane 20 by ventilative elastic material 12, makes piezoelectric membrane 20 produce the signal of telecommunication.In one embodiment, flexible encapsulated cavity 10 can think that a sidewall is flexible sack or bottle, in bag mouth or bottleneck, piezoelectric membrane 20 is set, ventilative elastic material 12 is arranged in sack or bottle, sack or bottle are supported, when sack or bottle are squeezed, ventilative elastic material 12 can be overcome do work, make air effect in sack or bottle in piezoelectric membrane 20, piezoelectric membrane 20 is made to produce the signal of telecommunication, after the power of extruding is cancelled, spatial accommodation restores to the original state by ventilative elastic material 12.
In the present embodiment, the area of above-mentioned through hole 11 is less than 1/10th of described flexible encapsulated cavity 10 surface area, the inner wall area of flexible encapsulated cavity 10 and the area ratio of through hole 11 larger, then when flexible encapsulated cavity 10 is squeezed, the stressed rear deformation of piezoelectric membrane 20 is larger.In the present embodiment, the area of through hole 11 is less than 1/10th of described flexible encapsulated cavity 10 surface area, can ensure the sensitivity of pressure signal harvester 1.
In the present embodiment, above-mentioned transport module 3 is wireless transport module 3, and wireless transport module 3 is easy to use, and without the need to a large amount of wiring, the data wireless that pressure signal harvester 1 gathers can be transferred to external reception device by wireless transport module 3.Outside receiving device can store the signal received, or carries out analyzing and processing, display and storage etc. further.
In the present embodiment, the through hole 11 of above-mentioned flexible encapsulated cavity 10 is towards vertical with the thickness direction of described flexible pad 2; In described flexible pad 2, corresponding described piezoelectric membrane 20 place arranges groove 21.Through hole 11 towards setting, when flexible belt body can be avoided to receive external impacts, directly impact piezoelectric membrane 20, improve service life of piezoelectric membrane 20.In flexible pad 2, corresponding described piezoelectric membrane 20 place arranges groove 21, provides enough deformation spaces can to piezoelectric membrane 20, prevent flexible pad 2 from hindering the expansion of piezoelectric membrane 20 and affecting validity and the sensitivity of acquired signal.
In the present embodiment, above-mentioned flexible encapsulated cavity 10 is oval ball, and described through hole 11 is arranged at a major axis top of oval ball.Described in the longer axis parallel of oval ball, flexible pad 2 is arranged, couch on pad personnel time, the minor axis end of oval ball is more easily stressed.In other embodiments, flexible encapsulated cavity 10 can also be other shape, and as Fructus Vitis viniferae is granular, piezoelectric membrane 20 is arranged at the junction etc. of Fructus Vitis viniferae and vine.
In the present embodiment, above-mentioned pressure signal harvester 1 one-tenth is latticed to be arranged in described flexible pad 2, the latticed grid etc. comprising rectangular grid, arrange according to the distribution of human body sprawl, can get the pressure signal of most of position on pad, reduce the existence of check frequency.
Physiology signal of the present invention gathers pad, in flexible pad 2, pressure signal harvester 1 is set, and the flexible encapsulated cavity 10 of pressure signal harvester 1 is arranged through hole 11, then piezoelectric membrane 20 is hidden the described through hole 11 of envelope, the faint change of the large-area pressure on flexible encapsulated cavity 10 surface, capital causes the larger change of piezoelectric membrane 20 pressure at through hole 11 place, thus make piezoelectric membrane 20 produce the larger signal of telecommunication, improve the sensitivity of pressure acquisition, the convenient analysis of the larger signal of telecommunication, thus improve collection sensitivity and the precision that physiology signal gathers pad.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a pressure signal harvester, is characterized in that, comprises flexible encapsulated cavity, piezoelectric membrane and signal processing unit;
Described flexible encapsulated cavity arranges through hole, and described piezoelectric membrane hides the described through hole of envelope;
When described flexible encapsulated cavity is subject to external force extruding, described piezoelectric membrane generation deformation produces the corresponding signal of telecommunication;
Described signal processing unit accepts the described signal of telecommunication and processes accordingly.
2. pressure signal harvester according to claim 1, is characterized in that, arranges elastic support and support described flexible encapsulated cavity in described flexible encapsulated cavity; Or, fill ventilative elastic material in described flexible encapsulated cavity and support described flexible encapsulated cavity.
3. pressure signal harvester according to claim 1 and 2, is characterized in that, the area of described through hole be less than described flexible encapsulated housing surface long-pending 1/10th.
4. pressure signal harvester according to claim 1 and 2, is characterized in that, described flexible encapsulated cavity is oval ball, and described through hole is arranged at a major axis top of oval ball.
5. physiology signal gathers a pad, it is characterized in that, comprises flexible pad, pressure signal harvester and transport module;
Described pressure signal harvester comprises flexible encapsulated cavity, piezoelectric membrane and signal processing unit; Described flexible encapsulated cavity arranges through hole, and described piezoelectric membrane hides the described through hole of envelope; Described flexible encapsulated cavity is subject to external force extruding, and piezoelectric membrane produces the corresponding signal of telecommunication; Described signal processing unit accepts the described signal of telecommunication and carries out analyzing and processing;
Pressure signal harvester described at least one is set in described flexible pad; Information after described transport module receives described signal processing unit processes also spreads out of to outside corresponding receiving system.
6. physiology signal according to claim 5 gathers pad, it is characterized in that, arranges elastic support and support described flexible encapsulated cavity in described flexible encapsulated cavity; Or, fill ventilative elastic material in described flexible encapsulated cavity and support described flexible encapsulated cavity.
7. physiology signal according to claim 5 or 6 gathers pad, it is characterized in that, the area of described through hole be less than described flexible encapsulated housing surface long-pending 1/10th.
8. the physiology signal according to claim 5 or 6 gathers pad, and it is characterized in that, described transport module is wireless transport module.
9. the physiology signal according to claim 5 or 6 gathers pad, and it is characterized in that, the through hole of described flexible encapsulated cavity is towards vertical with the thickness direction of described flexible pad; In described flexible pad, corresponding described piezoelectric membrane place arranges groove.
10. the physiology signal according to claim 5 or 6 gathers pad, and it is characterized in that, described pressure signal harvester becomes latticed and is arranged in described flexible pad.
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| CN201510732251.3A CN105249950A (en) | 2015-10-29 | 2015-10-29 | Pressure signal acquisition device and human body physiology signal acquisition pad body |
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| CN201510732251.3A CN105249950A (en) | 2015-10-29 | 2015-10-29 | Pressure signal acquisition device and human body physiology signal acquisition pad body |
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| CN106037692A (en) * | 2016-07-14 | 2016-10-26 | 昆山合才智能科技有限公司 | Micro-motion signal acquisition device, method and system |
| CN107172516A (en) * | 2017-05-26 | 2017-09-15 | 北京小鸟听听科技有限公司 | A kind of earphone and heart rate detection method |
| CN108814616A (en) * | 2018-04-12 | 2018-11-16 | 深圳和而泰数据资源与云技术有限公司 | A kind of sitting posture knows method for distinguishing and Intelligent seat |
| CN112216786A (en) * | 2019-07-09 | 2021-01-12 | 北京大学 | Flexible piezoelectric polymer micro-mechanical energy collector and preparation method thereof |
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| CN112216786A (en) * | 2019-07-09 | 2021-01-12 | 北京大学 | Flexible piezoelectric polymer micro-mechanical energy collector and preparation method thereof |
| CN112216786B (en) * | 2019-07-09 | 2022-05-17 | 北京大学 | Flexible piezoelectric polymer micro-mechanical energy collector and preparation method thereof |
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