CN204318732U - Fibre Optical Sensor intelligent clothing - Google Patents
Fibre Optical Sensor intelligent clothing Download PDFInfo
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- CN204318732U CN204318732U CN201420766660.6U CN201420766660U CN204318732U CN 204318732 U CN204318732 U CN 204318732U CN 201420766660 U CN201420766660 U CN 201420766660U CN 204318732 U CN204318732 U CN 204318732U
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Abstract
The utility model discloses a kind of Fibre Optical Sensor intelligent clothing.This utility model comprises garment body, fiber grating pulse transducer, fiber grating hear sounds/respiration pickup, for the optical singnal processing unit of Wavelength demodulation and Signal transmissions with for parameter information display, stores and the information processing terminal of telecommunication; Described fiber grating pulse transducer inweaves or embeds clothing cuff place, and described fiber grating hear sounds/respiration pickup inweaves or embed clothing anterior part of chest, and optical singnal processing unit inweaves or embeds clothing; Fiber grating pulse transducer, fiber grating hear sounds/respiration pickup is connected with optical singnal processing unit respectively by single-mode fiber; Optical singnal processing unit wirelessly communicates with the information processing terminal.This utility model electromagnetism interference, detection sensitivity are high, can use under the occasions such as high-intensity magnetic field, strong electromagnetic noise, intense radiation, can be applicable to the human body physical sign monitoring in nuclear magnetic resonance check, the safety custody of downhole personnel health, the space suit of spacefarer, the safety clothes etc. of fireman.
Description
Technical field
This utility model relates to intelligent clothing technical field, in particular, relates to a kind of Fibre Optical Sensor intelligent clothing.
Background technology
Intelligent clothing refers to and environment or internal state can carry out perception to external world, and carries out the clothing that respond in time, is the frontier of current Garment Industry Development.Human body physical sign parameter, as body temperature, heart rate, blood pressure etc., reflects the health condition of human body, by the monitoring to these physical sign parameters, can prevent the generation of some disease, as cardiovascular and cerebrovascular disease etc.In addition, also need to carry out Real-Time Monitoring to the physical sign parameters of human body under some special occasions or working environment.Because clothing have wearable property, do not affect people's normal activity, therefore, clothing carry out the ideal carrier that human body physical sign parameter detects in real time, and the research and development of intelligent clothing are significant.
Through investigation, patent of invention 200610125600.6 discloses a kind of intelligent clothing based on MEMS, the human body physiological parameter such as electrocardio, hear sounds can be gathered, these clothing utilize MEMS technology to make flexible sensor array film, use polymer to encapsulate it, utilize conductive fiber sensor array thin film and textile to be stitched into one.
Patent of invention 201210151420 discloses a kind of Human Physiology index and clothing building micro-climate monitoring system, for the temperature of human body, clothing humidity and human pulse.Digital temperature sensor DS18B20, humidity sensor DHT11 and piezoelectric membrane pulse transducer HK2000A embed in clothing by this system, utilize the collection of chip microcontroller signal, display and wireless transmission, between sensor and single-chip microcomputer, take wired connection mode.
Utility model patent 201320696659 discloses a kind of intelligent clothing towards outdoor activity based on Zigbee, by embedding information detecting module monitoring human temperature, heart rate, the blood pressure and pulse signal in clothing.Each information detecting module and adopt Zigbee wireless mode to carry out data communication between information processing and sending module, in clothing, each module is connected with power module by conductive fiber.
Patent of invention 201010581424 discloses the wearable multiple physiological parameter recording device that a kind of human body physiological parameter is measured.Be made up of wearing clothing, pulse wave measurement unit and control box, wearing clothing, pulse wave measurement unit are connected with control box in a wired fashion respectively, and control box is communicated with smart mobile phone by Bluetooth wireless communication mode.This device utilizes pulse transit time parameter to carry out the Fitting Calculation, obtains pressure value, achieves the detection to electrocardio, blood pressure and blood oxygen three kinds of physical signs.In this device, electrocardioelectrode is inwardly stained with hardhead sponge by supporting pad and the soft sponge of being wrapped up by conductive fibers is formed, and conductive fabric is connected with processing unit by wire.
Above-mentioned four kinds of intelligent clothings or wearable device all adopt electric sensor to realize the detection of human parameters, the antenna effect produced because conductive fiber is wound around, make to be subject to electromagnetic interference in electrical signal collection and transmitting procedure, reduce the signal to noise ratio of acquired signal, affect accuracy of detection.In addition, detecting unit (sensor) volume in patent of invention 201210151420 and utility model patent 201320696659 is large, has constant weight, is not easy to be combined with fabric, have impact on the comfortableness that clothing are worn.In addition, the intelligent clothing based on electric sensor all can not work under strong electromagnetic and strong magnetic field circumstance, thus limits the application scenario of intelligent clothing.
Utility model content
Technical problem to be solved in the utility model is, overcomes the defect existing for intelligent clothing in above-mentioned prior art, provides a kind of Fibre Optical Sensor intelligent clothing.
A kind of Fibre Optical Sensor intelligent clothing of this utility model, comprises garment body, fiber grating pulse transducer, fiber grating hear sounds/respiration pickup, for the optical singnal processing unit of Wavelength demodulation and Signal transmissions with for parameter information display, stores and the information processing terminal of telecommunication; Described fiber grating pulse transducer inweaves or embeds clothing cuff place, and described fiber grating hear sounds/respiration pickup inweaves or embed clothing anterior part of chest, and optical singnal processing unit inweaves or embeds clothing; Fiber grating pulse transducer, fiber grating hear sounds/respiration pickup is connected with optical singnal processing unit respectively by single-mode fiber; Optical singnal processing unit wirelessly communicates with the information processing terminal.
Described fiber grating pulse transducer comprises pulse sensing element, internal layer fabric and outer fabric, pulse sensing element is formed by fiber grating and sheet polymer, sheet polymer opens V-type groove along center line, be fixed on by fiber grating in the V-type groove of sheet polymer, the elasticity of sheet polymer material is greater than fiber grating material; Sheet polymer is connected with internal layer fabric, and the fluting of sheet polymer is facing to internal layer fabric; Internal layer fabric elasticity is greater than outer fabric, forms pocket between internal layer fabric and outer fabric, and the outline that hard plastics formation is housed in pocket is the implant of cambered surface, and implant is fixed on directly over sheet polymer; Internal layer fabric is connected wrist strap respectively with the two ends of outer fabric, and wrist strap is sewed with thread gluing.
Described fiber grating hear sounds/respiration pickup comprises hear sounds/breath-sensitive element, internal layer fabric and outer fabric, hear sounds/breath-sensitive element is formed by fiber grating and sheet polymer, sheet polymer opens V-type groove along center line, be placed on by fiber grating in the V-type groove of sheet polymer, the elasticity of sheet polymer material is greater than fiber grating material; Sheet polymer is connected with internal layer fabric, and the fluting of sheet polymer is facing to internal layer fabric; Internal layer fabric elasticity is greater than outer fabric, pocket is formed between internal layer fabric and outer fabric, the outline that hard plastics formation is housed in pocket is the implant of cambered surface, and implant is fixed on directly over sheet polymer, and the two ends of internal layer fabric are sewed with thread gluing.
Described optical singnal processing unit is positioned at clothing forward swing place, is connected with clothing in embedded pocket mode, and optical singnal processing unit comprises optical module for realizing optic fiber grating wavelength demodulation and for the circuit of signal processing and supplying cell.
The described optical module for realizing optic fiber grating wavelength demodulation comprises wideband light source, its output of wideband light source connects optoisolator successively, 1 × 2 photo-coupler input, 1 × 2 photo-coupler two-way outfan connects 1 foot of the first optical circulator and the second optical circulator respectively, first optical circulator is connected with fiber grating pulse transducer and hear sounds/respiration pickup respectively with 2 feet of the second optical circulator, first optical circulator is connected with the input of the first fiber mode interference filter and the second fiber mode interference filter respectively with 3 feet of the second optical circulator, thus the output light of fiber grating pulse transducer and hear sounds/respiration pickup is introduced the first fiber mode interference filter and the second fiber mode interference filter, the output of the first fiber mode interference filter and the second fiber mode interference filter is successively with input, the opto-electronic conversion of the first photo-detector and the second photo-detector and modulate circuit inputs, the ADC of MCU/MPU module is connected, realize optical signal and be converted to the signal of telecommunication, and utilize the ADC in MCU/MPU module to gather.
Described fiber mode interference filter on a section single-mould fiber, forms two bulge-structures at a distance of L by welding mode form.
The utility model discloses a kind of intelligent clothing utilizing fiber grating human body hear sounds, pulse, breathing, blood pressure.Compare electricity intelligent clothing, the place of this utility model most advantage is that electromagnetism interference, detection sensitivity are high, can use under the occasions such as high-intensity magnetic field, strong electromagnetic noise, intense radiation, can be applicable to the human body physical sign monitoring in nuclear magnetic resonance check, the safety custody of downhole personnel health, the space suit of spacefarer, the safety clothes etc. of fireman.In this utility model, bare optical fibers and bare optical gratings is suitably encapsulated, and inweaved fabric, realize the detection to pulse, hear sounds, breathing by specific fabric construction, form flexible fabric sensor, improve the comfortableness of dress.
Accompanying drawing explanation
Fig. 1 is this utility model Fibre Optical Sensor intelligent clothing structural representation;
Fig. 2 is the pulse wave that fiber grating pulse sensing Fabric Detection goes out;
Fig. 3 is the sectional structure chart of fiber grating pulse sensing fabric;
Fig. 4 is the optical fiber grating sensing fabric top view detected for hear sounds/breath signal;
Fig. 5 is the optical fiber grating sensing fabric side view detected for hear sounds/breath signal;
Fig. 6 is the Wavelength demodulation signal waveform that fiber grating hear sounds/breath signal sensing Fabric Detection goes out;
Fig. 7 is the cardiechema signals waveform extracted from restituted signal shown in Fig. 6 after wavelet denoise;
Fig. 8 is the composition frame chart of optical singnal processing unit;
Fig. 9 is the algorithm block diagram in optical singnal processing unit in MCU/MPU;
Figure 10 is fiber mode interference filter structured flowchart.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further.
One, the optics intelligent clothing that relates to of this utility model
As shown in Figure 1, garment body 1-1, fiber grating pulse transducer 1-2, fiber grating hear sounds/respiration pickup 1-3, optical singnal processing unit 1-4 (realizing Wavelength demodulation and signal processing, transmission) and information processing terminal 1-6 (parameter information display, store and telecommunication) is comprised.Wherein, fiber grating pulse transducer 1-2, fiber grating hear sounds/respiration pickup 1-3, optical singnal processing unit 1-4 inweave or embed clothing relevant position, are connected between them by single-mode fiber 1-5.Optical singnal processing unit 1-4 wirelessly communicates with information processing terminal 1-6.Fiber grating pulse transducer 1-2, fiber grating hear sounds/respiration pickup 1-3, optical singnal processing unit 1-4 all can from clothing removal, thus convenient underclothes cleaning.
Fiber grating pulse transducer 1-2 is positioned at clothing cuff place, for human body radial artery pulse wave, is designed to wrist carried flexible sensing fabric, embeds in clothing.Fiber grating is close to position of radial artery, radial pulse signal is converted to the change of fiber grating output wavelength.
Fiber grating hear sounds/respiration pickup 1-3 is positioned at clothing anterior part of chest, is designed to belt flexible sensing fabric, embeds in clothing.Human body hear sounds and breath signal all can change the output wavelength of fiber grating, realize being separated of hear sounds and breath signal by related algorithm.
Optical singnal processing unit 1-4 is positioned at clothing forward swing place, is connected with clothing in embedded pocket mode.Optical singnal processing unit 1-4 comprises optical module for realizing optic fiber grating wavelength demodulation and for the circuit of signal processing and supplying cell.
Two, fiber grating pulse transducer
The pulse transducer that the sensor of current human body pulse mainly contains photoelectricity positive displacement pulse transducer and makes with varistor or piezoelectric membrane.Wherein, photoelectricity positive displacement pulse transducer generally by referring to that folder is fixed on finger tip place, can not be implanted in clothing.Pressure sensitive and the sensitivity of piezoelectric film type pulse transducer lower, and there is certain thickness, after embedding clothing, affect the comfortableness of dress.In addition, pressure sensitive and piezoelectric film type pulse transducer are subject to electromagnetic noise interference.
The sensing fabric of described human body radial pulse, combines fiber grating with fabric, increases fiber grating place local pressure, reduce the integral pressure to wrist by particular fabric structure, thus improves the comfortableness of dress.Comparatively electricity pulse transducer improves detection sensitivity, can detect the heavy ripple of multiple pulse, as shown in Figure 2.
Described fiber grating pulse sensing fabric unit is wrist strap shape, by two-layer fabrics structure.Its cross-section structure as shown in Figure 3.Pulse sensing element is formed by fiber grating 4-1 and sheet polymer cuboid 4-2.Polymer cuboid 4-2 opens V-type groove along center line, leaves circular sewing hole near long edge position.Fiber grating 4-1 is placed in the V-type groove of polymer cuboid 4-2, after fiber grating 4-1 is applied certain prestressing force, by a glue mode itself and polymer 4-2 pasted and be integrated, elasticity due to polymeric material is greater than fiber grating material, therefore realizes the enhanced sensitivity of fiber grating axial strain.To be sewed with internal layer fabric 4-3 by polymer 4-2 by sewing hole and be connected, the fluting of polymer 4-2 is facing to internal layer fabric 4-3.It is two-layer fabrics above polymer 4-2, be respectively internal layer fabric 4-3 and outer fabric 4-4, and internal layer fabric 4-3 elasticity is greater than outer fabric 4-4, pocket 4-5 is formed between two-layer fabrics, the outline that hard plastics formation is housed in pocket 4-5 is that the implant 4-6 of cambered surface, implant 4-6 are fixed on directly over polymer 4-2.Wrist strap fabric ends is sewed with thread gluing 4-7, for wrist strap is fixed on wrist place, and by thread gluing 4-7 adjusting tightness.This wrist carried sensing fabric is connected with garment body cuff place by the mode such as thread gluing, zip.
In use, polymer 4-2 is placed on wrist radial artery place, by the thread gluing on fabric both sides, sensing fabric and wrist is fixed.The pressure that pulse produces makes polymer 4-2 that deformation occur, and changes the axial strain of fiber grating 4-1, thus the change of pulse pressure is converted to the change of fiber grating reflection wavelength, realize the detection of pulse wave.Combine owing to adopting different elastic two-layer fabrics, and arc implant 4-6 is with the addition of between two fabrics, can when identical fabric pulling force, increase implant 4-6 place to the pressure of polymer 4-2, thus when pulse wave can be detected, substantially reduce the pressure of cuff to human body, increase the comfortableness of dress.
Three, fiber grating hear sounds/respiration pickup
Tradition hear sounds and respiration pickup many employings piezoelectric type or piezoresistive transducer, its volume is large, affect the comfortableness of dress, and single-sensor can only gather a kind of signal after embedding clothing.
A kind of fiber grating heart sound transducer of bellows-type structure is disclosed in patent of invention 201210331015.7 document, this sensor involving vibrations film, ring support, vibration cavity and reflecting wall is formed, because box body is that hard material makes, and volume is comparatively large, therefore affects the comfortableness of dress.
The utility model discloses a kind of fiber grating hear sounds/breathing sensing fabric and signal processing method thereof.Utilize a fiber grating to detect hear sounds and breath signal simultaneously.Compare electricity hear sounds, respiration pickup, it is little, highly sensitive that this sensor has volume, electromagnetism interference, simultaneously advantage such as detection hear sounds and breath signal etc.This sensing fabric can inweave clothing, improves the comfortableness of dress.
As shown in Figures 4 and 5, entirety is banded to this utility model fiber grating hear sounds/breathing sensing fabric construction, comprises fiber grating 5-1, sheet polymer 5-2, fiber grating tail optical fiber 5-3, internal layer fabric 5-4, outer fabric 5-6, cambered surface implant 5-7, thread gluing 5-5 form.The elasticity of internal layer fabric 5-4 is greater than outer fabric 5-6.
Sheet polymer 5-2 center line section is slotted.Fiber grating 5-1, having in certain prestressed situation, is fixed in groove by a glue mode.Sheet polymer 5-2 edge has sewing hole, and sewing with internal layer fabric 5-4 is connected.Fiber grating tail optical fiber 5-3 is fixed on internal layer fabric 5-4 by yarn.Form pocket at sheet polymer 5-2 position internal layer fabric 5-4 and outer fabric 5-6, inner filling hard cambered surface implant 5-7, in order to increase fiber grating place local pressure.This belt hear sounds/breathing sensing fabric is connected with garment body by the mode such as thread gluing, zip, makes fiber grating be in left front breast cardiophony position, is fixed and applies certain pulling force to webbing, make fiber grating be close to skin by thread gluing 5-5.
Because hear sounds and breathing all can make fiber grating 5-1 axial strain change, thus cause fiber grating reflection wavelength to change, therefore contain hear sounds and breath signal in reflection wavelength change, hear sounds and breathing can be detected simultaneously.Because hear sounds and breath signal are in different frequency scope, utilize wavelet transformation can realize being separated of hear sounds and breath signal.
When carrying out wavelet analysis, the selection of wavelet basis is very important, but does not still have good method at present, mainly by judging the quality of wavelet basis by the result of wavelet analysis method process and the error of notional result, and selectes wavelet basis thus.Wavelet function conventional at present mainly contains haar small echo, db small echo, coif small echo, sym small echo, meyer small echo and dmey small echo.Compared by the result using different wavelet basis to process to Wavelength demodulation signal, this utility model final choice db4 wavelet function is as wavelet basis function.Concrete processing method is: under sample frequency is 1KHz situation, carry out 10 layers of wavelet decomposition, d4 and d5 layer data (respective frequencies scope is 31.25Hz ~ 62.5Hz) is carried out superposition and extracts cardiechema signals, a10 layer signal (respective frequencies scope is 0 ~ 0.977Hz) is as the breath signal extracted.Fig. 6 is fiber grating demodulation signal, and Fig. 7 is the cardiechema signals after above-mentioned algorithm process.Visible, the method from the restituted signal being mixed with respiration information, effectively can extract cardiechema signals.
Four, optical singnal processing unit
This utility model fiber optical grating intelligent clothing, utilize fiber grating human body pulse and cardiechema signals, and the change of pulse and cardiechema signals shows as the change of fiber grating reflection wavelength, need to detect the change of wavelength, namely realize Wavelength demodulation.
Patent of invention 201210331015.7 reports a kind of method realizing fiber grating heart sound transducer Wavelength demodulation based on tunable TEA CO2 laser.The method is by automatic calibration algorithm Automatic-searching dynamic wavelength demodulation operating point, and the output center wavelength of control F-P wave filter arrives the dynamic demodulation operating point of specifying.After F-P filter center wavelength arrives dynamic demodulation operating point, suppressed the drift of dynamic demodulation operating point by the method adding high frequency components signal at F-P FILTER TO CONTROL end.This demodulation method use device is many, complex structure, and tunable TEA CO2 laser cost is high, volume large, and owing to adding disturbing signal when carrying out dynamic wavelength demodulation, therefore contains the noise that disturbing signal causes in restituted signal, be not suitable for the detection of small-signal.
Patent of invention 201310544420 discloses a kind of fiber grating cardiechema signals demodulation method based on array waveguide grating, utilize the transmission spectrum of array waveguide grating to carry out filtering to fiber grating reflection wavelength, specified arrays waveguide optical grating passage output intensity is detected and calculated the reflection wavelength of fiber grating.The temperature-compensating of array waveguide grating is realized by the method adding null grating.The shortcoming of the method is that array waveguide grating module volume is comparatively large, affect snugness of fit afterwards, and price is higher with clothing are integrated.
The utility model proposes a kind of FBG Wavelength demodulation device and method based on fiber mode interference filter, utilize the demodulation that this demodulating equipment realizes fiber grating hear sounds/breath signal and pulse signal.On single-mode fiber, form micro structure by special welding mode, the generation of excitation fiber inner high-order cladding mode light, and cladding mode light and fibre core basic mode light are interfered, produce pectination interference spectrum, form comb filter.Utilize this wave filter to carry out filtering to FBG reflected light, make output intensity and FBG reflection wavelength linear, thus realize FBG Wavelength demodulation.The fiber mode interference filter proposed is formed on a section single-mould fiber, substantially reduces the volume and weight of Wavelength demodulation system, and what be conducive to clothing is integrated.In addition, owing to using general single mode fiber, therefore its cost is very low.
Optical singnal processing unit in Fig. 1, its internal structure as shown in Figure 8.Wideband light source adopts ASE or SLED light source module, its output connects optoisolator, 1 × 2 photo-coupler input successively, 1 × 2 photo-coupler two-way outfan connects 1 foot of optical circulator 1 and 2 respectively, optical circulator 1 with 22 feet be connected with fiber grating pulse transducer and hear sounds/respiration pickup respectively, optical circulator 1 with 23 feet be connected with the input of fiber mode interference filter 1 and 2 respectively, thus the output light of fiber grating pulse transducer and hear sounds/respiration pickup is introduced fiber mode interference filter 1 and 2.Fiber mode interference filter 1 with 2 output successively with photo-detector 1 with 2 input, opto-electronic conversion and modulate circuit inputs, the ADC of MCU/MPU module is connected, realize optical signal and be converted to the signal of telecommunication, and utilize the ADC of MCU/MPU module to gather.Because the reflection wavelength change of fiber grating is linear with the change of mode-interference wave filter output intensity, therefore, the demodulation to wavelength can be realized by collection light intensity.
The function of optical singnal processing unit comprises: carry out Wavelength demodulation to FBG pulse wave sensor, FBG hear sounds/respiration pickup output optical signal; The parameter that respective algorithms process obtains blood pressure, hear sounds, breathing is carried out to restituted signal; Blood pressure, hear sounds and respiration parameter are transmitted.
The light path part of optical singnal processing unit achieves and FBG outputs wavelength information is converted to intensity signal, i.e. light intensity and the FBG output wavelength of photo-detector input are linear, realize the demodulation of wavelength by detecting this light intensity.
As shown in Figure 9, detailed process is as follows for algorithm block diagram in optical singnal processing unit in MCU/MPU:
Contain hear sounds and respiratory component in FBG hear sounds/breathing restituted signal (namely photo-detector 2 outputs signal), this signal, first through wavelet decomposition, isolates cardiechema signals and breath signal.To in the process of breath signal, obtain breathing rate by the cycle calculating breath signal.To in the process of cardiechema signals, the mathematical morphology hear sounds peak point combined based on linear structure element and cosine structural element and terminal distinguished number obtain peak point and the terminal information of first heart sound (S1) and second heart sound (S2), utilize these information to calculate cardiac parameter.The cardiac parameter obtained has: heart rate, mental and physical efforts, S1 time limit, S2 time limit, S1S2 interval, S2S1 interval.In addition, the S1 peak point extracted also checks the calculating of PWTT in algorithm for blood pressure.
FBG pulse wave restituted signal (namely photo-detector 1 outputs signal) is for many Pulse-Parameters human blood-pressure detection algorithm, this algorithm comprises pulse wave pretreatment, pulse characteristics point extracts, the foundation of blood pressure model and blood pressure estimation, obtains systolic pressure and diastolic pressure information.
MCU/MPU module completes Wavelength demodulation, and the related physiological parameters obtained after carrying out related algorithm process to restituted signal is transferred to mobile terminal by wireless module or remote server shows, records and analyzes further.Wireless transmission method comprises bluetooth, Zigbee and Wifi mode.
The structure of the fiber mode interference filter proposed as shown in Figure 10.A section single-mould fiber forms two bulge-structures at a distance of L by special welding mode, i.e. convex cone structure 1 and 2.Because convex cone structure causes optical fiber mode fields not mated, therefore input light and inspire cladding mode at convex cone structure 1 place, cladding mode and core mode are jointly propagated in length L section optical fiber, and in convex cone structure 2, cladding mode is coupled into fibre core, interferes with core mode.The fusion joining process proposed, in cladding mode excitation process, only has a main cladding mode, therefore there occurs two-beam interference at convex cone structure 2 place, produces comb spectrum.
Fiber mode interference filter adopts conventional SMF 28 single-mode fiber to be raw material, and the FSM-60 single mode heat sealing machine utilizing Japanese Teng Cang company to produce is made.Manufacture method and technological parameter as follows: two section single-mould fibers are removed coats, surface cleaning, are placed in heat sealing machine two V-type grooves respectively after ends cutting by (1); (2) arranging splicing parameter is: fibre core is to core mode, fiber end face interval=10um, lap=150um, cleaner discharge time=150ms, fritting time=180ms, first time discharge time=3s, first time strength of discharge=" stand ", second time discharge time=0, then discharge time=0, other parameter is identical with the built-in mode standard SM-SM of heat sealing machine.(3) start automatic welding, welding goes out first convex cone structure.(4) optical fiber of first convex cone structure welding is had to take out, in distance, first convex cone structure L length place carries out ends cutting, the single-mode fiber handled well with other end carries out the welding of above-mentioned parameter again, and welding goes out second convex cone structure, thus produces fiber mode interferometer.Wherein L is interferometer length, determines the Free Spectral Range of comb spectrum, L=1cm in experiment.(5) made fiber mode interferometer is encapsulated; fiber section containing two convex cone structures is inserted in a cylindrical tube; as in capillary tubing or plastic conduit; the mouth of pipe seals by two ends binding agent; and the single-mode fiber at fixing two ends; thus the protection realized interferometer, in addition, the encapsulating structure of tubulose is also convenient to inweave fabric.
Claims (6)
1. a Fibre Optical Sensor intelligent clothing, it is characterized in that, comprise garment body, fiber grating pulse transducer, fiber grating hear sounds/respiration pickup, for the optical singnal processing unit of Wavelength demodulation and Signal transmissions with for parameter information display, store and the information processing terminal of telecommunication; Described fiber grating pulse transducer inweaves or embeds clothing cuff place, and described fiber grating hear sounds/respiration pickup inweaves or embed clothing anterior part of chest, and optical singnal processing unit inweaves or embeds clothing; Fiber grating pulse transducer, fiber grating hear sounds/respiration pickup is connected with optical singnal processing unit respectively by single-mode fiber; Optical singnal processing unit wirelessly communicates with the information processing terminal.
2. a kind of Fibre Optical Sensor intelligent clothing according to claim 1, it is characterized in that: described fiber grating pulse transducer comprises pulse sensing element, internal layer fabric and outer fabric, pulse sensing element is formed by fiber grating and sheet polymer, sheet polymer opens V-type groove along center line, be fixed on by fiber grating in the V-type groove of sheet polymer, the elasticity of sheet polymer material is greater than fiber grating material; Sheet polymer is connected with internal layer fabric, and the fluting of sheet polymer is facing to internal layer fabric; Internal layer fabric elasticity is greater than outer fabric, forms pocket between internal layer fabric and outer fabric, and the outline that hard plastics formation is housed in pocket is the implant of cambered surface, and implant is fixed on directly over sheet polymer; Internal layer fabric is connected wrist strap respectively with the two ends of outer fabric, and wrist strap is sewed with thread gluing.
3. a kind of Fibre Optical Sensor intelligent clothing according to claim 1, it is characterized in that: described fiber grating hear sounds/respiration pickup comprises hear sounds/breath-sensitive element, internal layer fabric and outer fabric, hear sounds/breath-sensitive element is formed by fiber grating and sheet polymer, sheet polymer opens V-type groove along center line, be fixed on by fiber grating in the V-type groove of sheet polymer, the elasticity of sheet polymer material is greater than fiber grating material; Sheet polymer is connected with internal layer fabric, and the fluting of sheet polymer is facing to internal layer fabric; Internal layer fabric elasticity is greater than outer fabric, pocket is formed between internal layer fabric and outer fabric, the outline that hard plastics formation is housed in pocket is the implant of cambered surface, and implant is fixed on directly over sheet polymer, and the two ends of internal layer fabric are sewed with thread gluing.
4. a kind of Fibre Optical Sensor intelligent clothing according to claim 1, it is characterized in that: optical singnal processing unit is positioned at clothing forward swing place, be connected with clothing in embedded pocket mode, optical singnal processing unit comprises optical module for realizing optic fiber grating wavelength demodulation and for the circuit of signal processing and supplying cell.
5. a kind of Fibre Optical Sensor intelligent clothing according to claim 4, it is characterized in that: the described optical module for realizing optic fiber grating wavelength demodulation comprises wideband light source, its output of wideband light source connects optoisolator successively, 1 × 2 photo-coupler input, 1 × 2 photo-coupler two-way outfan connects 1 foot of the first optical circulator and the second optical circulator respectively, first optical circulator is connected with fiber grating pulse transducer and hear sounds/respiration pickup respectively with 2 feet of the second optical circulator, first optical circulator is connected with the input of the first fiber mode interference filter and the second fiber mode interference filter respectively with 3 feet of the second optical circulator, thus the output light of fiber grating pulse transducer and hear sounds/respiration pickup is introduced the first fiber mode interference filter and the second fiber mode interference filter, the output of the first fiber mode interference filter and the second fiber mode interference filter is successively with input, the opto-electronic conversion of the first photo-detector and the second photo-detector and modulate circuit inputs, the ADC of MCU/MPU module is connected, realize optical signal and be converted to the signal of telecommunication, and utilize the ADC of MCU/MPU module to gather.
6. a kind of Fibre Optical Sensor intelligent clothing according to claim 5, is characterized in that: described fiber mode interference filter on a section single-mould fiber, forms two bulge-structures at a distance of L by welding mode form.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104382569A (en) * | 2014-12-08 | 2015-03-04 | 天津工业大学 | Fiber-optic sensing intelligent garment and heart sound and blood pressure parameter processing methods thereof |
| CN105455794A (en) * | 2015-12-29 | 2016-04-06 | 东莞广州中医药大学中医药数理工程研究院 | Wearing article |
| WO2017174031A1 (en) * | 2016-04-07 | 2017-10-12 | 杨章民 | Sensing system utilizing multifunctional fabric, method, and object |
| WO2019127950A1 (en) * | 2017-12-25 | 2019-07-04 | 苏州安莱光电科技有限公司 | Inter-mode interference-based vital sign monitoring device |
| WO2019178886A1 (en) * | 2018-03-22 | 2019-09-26 | 香港纺织及成衣研发中心 | Intelligent bionic human body part model detection device and method for manufacturing same |
| CN112353372A (en) * | 2020-11-10 | 2021-02-12 | 西安工程大学 | Wearable intelligent garment health monitoring system |
| CN113584679A (en) * | 2021-08-10 | 2021-11-02 | 天津工业大学 | Flexible monitoring respiratory fabric based on optical fiber luminescence sensitization mechanism and preparation method thereof |
| CN114052684A (en) * | 2020-08-03 | 2022-02-18 | Oppo广东移动通信有限公司 | Wearable device |
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2014
- 2014-12-08 CN CN201420766660.6U patent/CN204318732U/en not_active Expired - Fee Related
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| CN104382569B (en) * | 2014-12-08 | 2017-04-12 | 天津工业大学 | Fiber-optic sensing intelligent garment and heart sound parameter processing methods thereof |
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| CN105455794B (en) * | 2015-12-29 | 2018-06-22 | 东莞广州中医药大学中医药数理工程研究院 | A kind of wear |
| WO2017174031A1 (en) * | 2016-04-07 | 2017-10-12 | 杨章民 | Sensing system utilizing multifunctional fabric, method, and object |
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| US11860051B2 (en) | 2018-03-22 | 2024-01-02 | The Hong Kong Research Institute Of Textiles And Apparel Limited | Intelligent bionic human body part model detection device and method for manufacturing same |
| CN114052684A (en) * | 2020-08-03 | 2022-02-18 | Oppo广东移动通信有限公司 | Wearable device |
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