CN204636367U - A kind of noncontact device for detecting respiratory - Google Patents
A kind of noncontact device for detecting respiratory Download PDFInfo
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- CN204636367U CN204636367U CN201520146496.3U CN201520146496U CN204636367U CN 204636367 U CN204636367 U CN 204636367U CN 201520146496 U CN201520146496 U CN 201520146496U CN 204636367 U CN204636367 U CN 204636367U
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- 230000000241 respiratory effect Effects 0.000 title claims abstract description 26
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- 230000003321 amplification Effects 0.000 claims abstract description 18
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 238000011161 development Methods 0.000 claims description 6
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- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 9
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- 230000036541 health Effects 0.000 description 2
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- 206010003497 Asphyxia Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a kind of noncontact device for detecting respiratory, comprise detecting electrode (1), described detecting electrode be attached to human body dress clothes on define a coupling capacitance, described detecting electrode is by the elastic overcoat (8) that can be enclosed within clothes outer surface, the multiple battery lead plates (9) being arranged on position, overcoat shirtfront form jointly, in described detecting electrode access oscillation test unit (2), described oscillation test unit and FM demodulator (3) are electrically connected, described FM demodulator is also electrically connected with amplification filtering unit (4), described amplification filtering unit is also electrically connected with control system (5), described control system is also electrically connected with display (6) and bluetooth module (7) respectively.The beneficial effects of the utility model are, testing process is simple, easy to use.
Description
Technical field
This utility model relates to human body respiration detection field, particularly a kind of noncontact device for detecting respiratory.
Background technology
Breathing is an important physical signs, carries out detecting the physiological status can observing patient, judge the vital signs of patient to the breathing situation of high risk patient.When sleeping for ordinary people, respiration detection contributes to the generation preventing cardio-cerebralvascular diseases.Asphyxia when there are some researches show sleep quality is relevant with sleep apnea syndrome.Basic medical and clinical research confirmation sleep apnea syndrome become the key factor affecting health.Sleep apnea directly causes the sleep quality degradation of people, causes adverse effect to orthobiosis of patient and work.Respiration detection when sleeping to human body, can the phenomenon of Timeliness coverage sleep apnea, keeps health.
Traditional breath signal detects the main method adopting contact, directly carries out contacting the breath signal gathering human body with human body skin by sensor.Although the method for contact can gather accurately to the breath signal of human body, when detecting for a long time, subject person has uncomfortable sensation, affects the rest of subject person.
Traditional respiration detection method mainly comprises strain gauge pressure sensor method and critesistor method.Along with motion and the hocketing of inhalation effort of exhaling, the corrugated hose of human body and the position such as breast, abdomen produce periodically moves and causes the foil gauge pasted thereon to produce periodically distortion, the breath signal of human body can be obtained by the deformation detecting foil gauge, this method needs foil gauge to be fixed on human body skin, and require very high to the placement location of foil gauge, the sense of discomfort of testee can be caused.
Respiratory is exactly human body carries out gas exchange process by respiratory apparatus and the external world in simple terms, and respiratory will inevitably cause the change of nasal cavity or mouth cavity temperature.Utilize critesistor or other temperature sensing materials to detect this variations in temperature, just can obtain the breath signal of human body.Adopt critesistor method to detect when breathing in reality to need the front portion of sensor placement at nose or mouth, this can affect the normal activity of subject person, and due to the response time of critesistor longer, detecting has necessarily delayed, also limit its application.
Utility model content
The purpose of this utility model is to solve the problem, and devises a kind of noncontact device for detecting respiratory.
Realizing above-mentioned purpose the technical solution of the utility model is, a kind of noncontact device for detecting respiratory, comprise detecting electrode 1, described detecting electrode be attached to human body dress clothes on define a coupling capacitance, described detecting electrode is by the elastic overcoat 8 that can be enclosed within clothes outer surface, the multiple battery lead plates 9 being arranged on position, overcoat shirtfront form jointly, in described detecting electrode access oscillation test unit 2, described oscillation test unit and FM demodulator 3 are electrically connected, described FM demodulator is also electrically connected with amplification filtering unit 4, described amplification filtering unit is also electrically connected with control system 5, described control system is also electrically connected with display 6 and bluetooth module 7 respectively.
Described oscillation test unit 2 is LC agitator, in described LC agitator the frequency of oscillation of oscillation circuit by the signal intensity produced in coupling capacitance by the respiratory movement of human body modulate, produce FM signal.
The FM signal that oscillation test unit produces is carried out amplitude modulation and demodulation by described FM demodulator 3, and by the Signal transmissions after demodulation to amplification filtering unit.
Modulation signal after demodulation carries out amplifying and filtering by described amplification filtering unit 4, obtains the signal of respiratory variations clearly that A/D converter can identify.
Described amplification filtering unit 4 is electrically connected successively by amplifying circuit 10, zeroing circuit 11, second-order low-pass filter circuit 12 and double-T shaped 50Hz Hz noise trap circuit 13 and forms.
Described control system 5 is the embedded development control system based on ARM processor.
The model of described arm processor is S3C2440.
The noncontact device for detecting respiratory utilizing the technical solution of the utility model to make, avoids electrode slice or sensor accurately under prerequisite to the restriction of human body in guarantee measurement result, improves the comfortableness of respiration detection process; The Acquire and process utilizing embedded system to carry out breath signal can reduce volume and the cost of collecting unit; The wireless transmission adopting Bluetooth technology to carry out breath signal can expand the outside Presentation Function of local acquisition system, and diagnostician or tester are observed breath state in real time.
Accompanying drawing explanation
Fig. 1 is the structural representation of noncontact device for detecting respiratory described in the utility model;
In figure, 1, detect motor; 2, oscillation test unit; 3, FM demodulator; 4, amplification filtering unit; 5, control system; 6, display; 7, bluetooth module; 8, overcoat; 9, battery lead plate; 10, amplifying circuit; 11, zeroing circuit; 12, second-order low-pass filter circuit; 13, double-T shaped 50Hz Hz noise trap circuit.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is specifically described, as the structural representation that Fig. 1 is noncontact device for detecting respiratory described in the utility model, as shown in the figure, a kind of noncontact device for detecting respiratory, comprise detecting electrode 1, described detecting electrode be attached to human body dress clothes on define a coupling capacitance, described detecting electrode is by the elastic overcoat 8 that can be enclosed within clothes outer surface, the multiple battery lead plates 9 being arranged on position, overcoat shirtfront form jointly, in described detecting electrode access oscillation test unit 2, described oscillation test unit and FM demodulator 3 are electrically connected, described FM demodulator is also electrically connected with amplification filtering unit 4, described amplification filtering unit is also electrically connected with control system 5, described control system is also electrically connected with display 6 and bluetooth module 7 respectively.Wherein, described oscillation test unit 2 is LC agitator, in described LC agitator the frequency of oscillation of oscillation circuit by the signal intensity produced in coupling capacitance by the respiratory movement of human body modulate, produce FM signal; The FM signal that oscillation test unit produces is carried out amplitude modulation and demodulation by described FM demodulator 3, and by the Signal transmissions after demodulation to amplification filtering unit; Modulation signal after demodulation carries out amplifying and filtering by described amplification filtering unit 4, obtains the signal of respiratory variations clearly that A/D converter can identify; Described amplification filtering unit 4 is electrically connected successively by amplifying circuit 10, zeroing circuit 11, second-order low-pass filter circuit 12 and double-T shaped 50Hz Hz noise trap circuit 13 and forms; Described control system 5 is the embedded development control system based on ARM processor; The model of described arm processor is S3C2440.
In the technical program, detecting electrode is placed in human body surface, define a coupling capacitance between such detecting electrode and human body, human body and detecting electrode are as two pole plates of coupling capacitance, and the electrolyte of the setup action coupling capacitances such as the muscle of human body, skin, medicated clothing.Thorax change during human body respiration motion causes the coupling capacitance between human body and detecting electrode to change, and detects this change, just can realize the non-contact detecting of breath signal by an oscillating circuit.Because the breath signal collected is very faint, and mix very strong noise signal, A/D conversion cannot be carried out, therefore modelled signal is needed to amplify and filter circuit, breath signal is amplified to the scope that A/D transducer can identify, and filtering is mingled in the noise in breath signal, for subsequent treatment.
In the technical program, the embedded developping system based on ARM processor is adopted to carry out the collecting work of breath signal.Development system is chosen as mini2440.The processor model selected is S3C2440, and this processor has that volume is little, price is low, the feature of stable performance.For reasonable employment development system hardware resource and give full play to the performance of processor, the technical program selects Windows CE as embedded OS, carries out the Embedded development of ARM under Windows CE system.Windows CE is 32 embedded OSs of a opening, can carry out multi-thread programming, has outstanding graphic user interface and good real-time.
Technique scheme only embodies the optimal technical scheme of technical solutions of the utility model; those skilled in the art all embody principle of the present utility model to some variations that wherein some part may be made, and belong within protection domain of the present utility model.
Claims (7)
1. a noncontact device for detecting respiratory, comprise detecting electrode (1), described detecting electrode be attached to human body dress clothes on define a coupling capacitance, it is characterized in that, described detecting electrode is by the elastic overcoat (8) that can be enclosed within clothes outer surface, the multiple battery lead plates (9) being arranged on position, overcoat shirtfront form jointly, in described detecting electrode access oscillation test unit (2), described oscillation test unit and FM demodulator (3) are electrically connected, described FM demodulator is also electrically connected with amplification filtering unit (4), described amplification filtering unit is also electrically connected with control system (5), described control system is also electrically connected with display (6) and bluetooth module (7) respectively.
2. noncontact device for detecting respiratory according to claim 1, it is characterized in that, described oscillation test unit (2) is LC agitator, in described LC agitator the frequency of oscillation of oscillation circuit by the signal intensity produced in coupling capacitance by the respiratory movement of human body modulate, produce FM signal.
3. noncontact device for detecting respiratory according to claim 1, is characterized in that, the FM signal that oscillation test unit produces is carried out amplitude modulation and demodulation by described FM demodulator (3), and by the Signal transmissions after demodulation to amplification filtering unit.
4. noncontact device for detecting respiratory according to claim 1, is characterized in that, the modulation signal after demodulation carries out amplifying and filtering by described amplification filtering unit (4), obtains the signal of respiratory variations clearly that A/D converter can identify.
5. noncontact device for detecting respiratory according to claim 1, it is characterized in that, described amplification filtering unit (4) is electrically connected successively by amplifying circuit (10), zeroing circuit (11), second-order low-pass filter circuit (12) and double-T shaped 50Hz Hz noise trap circuit (13) and forms.
6. noncontact device for detecting respiratory according to claim 1, is characterized in that, described control system (5) is the embedded development control system based on ARM processor.
7. noncontact device for detecting respiratory according to claim 6, is characterized in that, the model of described arm processor is S3C2440.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146496.3U CN204636367U (en) | 2015-03-13 | 2015-03-13 | A kind of noncontact device for detecting respiratory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146496.3U CN204636367U (en) | 2015-03-13 | 2015-03-13 | A kind of noncontact device for detecting respiratory |
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| Publication Number | Publication Date |
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| CN204636367U true CN204636367U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520146496.3U Expired - Fee Related CN204636367U (en) | 2015-03-13 | 2015-03-13 | A kind of noncontact device for detecting respiratory |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426427A (en) * | 2019-09-07 | 2019-11-08 | 中国科学院宁波材料技术与工程研究所 | A capacitive coupling sensor, its preparation method and application |
| CN110693237A (en) * | 2019-10-24 | 2020-01-17 | 浙江布华家纺有限公司 | Mattress capable of monitoring sleep |
| CN111839519A (en) * | 2020-05-26 | 2020-10-30 | 合肥工业大学 | Non-contact respiratory rate monitoring method and system |
-
2015
- 2015-03-13 CN CN201520146496.3U patent/CN204636367U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426427A (en) * | 2019-09-07 | 2019-11-08 | 中国科学院宁波材料技术与工程研究所 | A capacitive coupling sensor, its preparation method and application |
| CN110693237A (en) * | 2019-10-24 | 2020-01-17 | 浙江布华家纺有限公司 | Mattress capable of monitoring sleep |
| CN111839519A (en) * | 2020-05-26 | 2020-10-30 | 合肥工业大学 | Non-contact respiratory rate monitoring method and system |
| CN111839519B (en) * | 2020-05-26 | 2021-05-18 | 合肥工业大学 | Non-contact respiratory rate monitoring method and system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150916 Termination date: 20160313 |