CN103940531A - Infant incubator temperature monitoring system with fiber bragg grating sensors - Google Patents
Infant incubator temperature monitoring system with fiber bragg grating sensors Download PDFInfo
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- CN103940531A CN103940531A CN201410176275.0A CN201410176275A CN103940531A CN 103940531 A CN103940531 A CN 103940531A CN 201410176275 A CN201410176275 A CN 201410176275A CN 103940531 A CN103940531 A CN 103940531A
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Abstract
The invention discloses an infant incubator temperature monitoring system with fiber bragg grating sensors. The infant incubator temperature monitoring system comprises a computer, an optical grating demodulation instrument, a sound-light alarm module and multiple infant incubators located in a ward and identical in structure, wherein the computer, the optical grating demodulation instrument and the sound-light alarm module are located in a master monitoring room. The optical grating demodulation instrument and the sound-light alarm module are respectively connected with the computer, multiple series-connected fiber bragg grating sensors are laid on the inner wall of the periphery of each infant incubator, and the series-connected fiber bragg grating sensors in the infant incubators are respectively connected with the optical grating demodulation instrument through FC interfaces. The infant incubator temperature monitoring system adopts multiple fiber bragg grating sensors having different central wave lengths to monitor the temperatures in multiple infant incubators, is high in monitoring accuracy and accuracy, simple in system layout and stable in performance, greatly reduces the working strength of medical workers and is suitable for real-time monitoring of the temperatures in multiple infant incubators.
Description
Technical field
The present invention relates to temperature monitoring system, be specifically related to a kind of infant incubator temperature monitoring system of fiber-optic grating sensor.
Background technology
Infant incubator, be called again neonatal incubator, its effect mainly contains two: the one, and in order there to be the child who needs, (common premature or the state of an illness are critical, the baby who needs better nursing and observe) provide the environment of a simulation parent, its main feature is exactly constant temperature, constant humidity, noiselessness, and owing to isolating with extraneous, bacterium infects few; The 2nd, be more conducive to medical personnel to baby's observation and treatment, because baby need not wear the clothes in insulation can, medical personnel can observe the variation of child's vital sign at any time, and insulation can connect various monitors, medical personnel can directly monitor the situations such as baby's body temperature, heartbeat, pulse, breathing, blood pressure, brain function, also can directly to baby, carry out blue-light treatment and film making etc.
Its basic comprising of infant incubator in the market mainly comprises the assemblies such as infant compartment, temperature controller, incubator cabinet, blue light irradiation lamp box, adopt the mode of " adjusting of steam advection heat ", utilize computer technology to control incubator temperature, regulate the temperature in incubator to remain within the scope of the required thermoneutrality of neonate.
As the relatively high medicine equipment of a kind of security requirement, already there is corresponding national standard to carry out standard to it.As < < GB 11243-2008 > >, < < CNS 12794-1991 > >, < < CNS 12793-1991 > > etc. are the structure to infant incubator just, each parameter bound and the method for inspection etc. have been done strict regulations.Although under the constraint of standard, the probability of failure of infant incubator should be very little, but the data from Administration of Food and Drug show, the suspicious medicine equipment adverse events report of the relevant infant incubator that receive at national drug adverse reaction monitoring center still has a lot, main manifestations is temperature control, ventilating system fault, fash, scuffing etc., and wherein one of temperature control accounts for more than 50%.
The temp-controled mode of infant incubator mainly contains the temperature inside the box control and shell temperature control at present, by being placed in insulation can thermistor, AD590, DS18B20 equitemperature sensor inner and that be attached on baby's belly, obtain the digital signal that is incubated the temperature inside the box and baby's shell temperature, through a series of digital signal processing, obtain temperature value, with preset standard temperature, compare again, if the temperature gathering is in preset range, temperature control modules is normally worked, otherwise reports to the police and carry out heating and cooling action.The shortcoming of this mode is:
1, digital circuit structure is complicated, and the performance performance of each electronic component is unstable causes the signal of printed circuit board (PCB) and communication to be easily disturbed, and debugging is difficult for.Only be suitable for monitoring among a small circle, can not realize a plurality of infant incubators are monitored to whole ward simultaneously.
2, a lot of infant incubators are not considered monitoring personnel's needs, and they,, when monitoring, need to constantly be timed to the situation of observing baby in insulation can within the watch time of 24 hours, and working strength is very high.
Therefore, be necessary to propose a kind ofly can carry out high precision, Real-Time Monitoring to infant incubator, can alleviate again the infant incubator temperature monitoring system of guardian person's working strength.
Summary of the invention
In order to overcome the deficiency in above-mentioned background technology, the object of the present invention is to provide a kind of infant incubator temperature monitoring system of fiber-optic grating sensor.
The technical solution used in the present invention is:
The present invention includes the computing machine, grating demodulation instrument and the acousto-optic alarm module that are positioned at main Control Room, be positioned at the identical a plurality of infant incubators of structure in ward; Grating demodulation instrument is connected with computing machine respectively with acousto-optic alarm module, the surrounding inwall of each infant incubator is equipped with the fiber-optical grating temperature sensor of a plurality of serial connections, and in a plurality of infant incubators, the fiber-optical grating temperature sensor of serial connection is connected to grating demodulation instrument by FC interface respectively.
Described a plurality of fiber-optical grating temperature sensor all has different centre wavelength.
Described grating demodulation instrument need to be selected 1 ~ 32 passage according to monitoring point number, can be connected in series a plurality of fiber-optical grating temperature sensors of 1 ~ 20 different wave length on 1 passage.
Described sound and light alarm module comprises LED lamp and hummer.
Compare with background technology, the beneficial effect that the present invention has is:
1, Fibre Optical Sensor is non-electrical sensor, can shield well the interference such as electromagnetism, ultrasound wave, have good stability, and fiber-optical grating temperature sensor be Wavelength demodulation, utilize wavelength-division multiplex can realize multiple spot monitoring, can to a plurality of infant incubators, carry out temperature monitoring simultaneously.
2, fiber-optical grating temperature sensor has higher measuring accuracy, and in (30 ~ 60) ℃ temperature range, precision can reach 0.1 ℃, and accuracy is ± 0.2 ℃.
Data that 3, record by fiber-optical grating temperature sensor and the reflection infant incubator temperature variation after the demodulation of grating demodulation instrument are presented on the computing machine of Control Room in real time, when real-time temperature data arrives the alarm temperature value of setting, computing machine automatic alarm, monitoring personnel can find corresponding insulation can to carry out temperature adjusting according to the position of alarm sensor very soon.
Accompanying drawing explanation
Fig. 1 is syndeton schematic diagram of the present invention.
Fig. 2 is fiber-optical grating temperature sensor arrangement mode schematic diagram in the present invention.
Fig. 3 is the signal demodulation principle figure of grating demodulation instrument of the present invention.
In figure: 1, computing machine, 2, grating demodulation instrument, 3, sound and light alarm module, 4, infant incubator, 5, fiber-optical grating temperature sensor, 6, LED lamp, 7, hummer, 8, broadband or tuning source, 9, coupling mechanism, 10, photodetector, 11, wave filter, 12, A/D converter.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1 and Figure 2, the present invention includes the computing machine 1, grating demodulation instrument 2 and the acousto-optic alarm module 3 that are positioned at main Control Room, be positioned at the identical a plurality of infant incubators 4 of structure in ward; Grating demodulation instrument 2 is connected with computing machine 1 respectively with acousto-optic alarm module 3, the surrounding inwall of each infant incubator is equipped with the fiber-optical grating temperature sensor 5 of a plurality of serial connections, and in a plurality of infant incubators, the fiber-optical grating temperature sensor 5 of serial connection is connected to grating demodulation instrument 2 by FC interface respectively.
Described fiber-optical grating temperature sensor 5 is TMS-03C, and a plurality of fiber-optical grating temperature sensors all have different centre wavelength.
Described grating demodulation instrument 2 is i Smart 1115, according to monitoring point number, need to select 1 ~ 32 passage, can be connected in series a plurality of fiber-optical grating temperature sensors 5 of 1 ~ 20 different wave length on 1 passage.
Described sound and light alarm module 3 comprises LED lamp 6 and hummer 7.
Described computing machine 1 can be realized sensor parameters inquiry and setting, the high lower bound of temperature is reported to the police and difference warnings, temperature curve demonstration, the inquiry of historical data and printing function, the temperature that described a plurality of fiber-optical grating temperature sensors 5 monitor by described grating demodulation instrument 2 demodulation after demonstration in real time on described computing machine 1.
The fiber-optical grating temperature sensor 5 that infant incubator temperature monitoring system in the present embodiment adopts is a kind of wavelength-modulated type Fibre Optical Sensors, than traditional sensors, have highly sensitive, volume is little, corrosion-resistant, anti-electromagnetic interference (EMI), be convenient to the advantages such as remote measurement.In addition, a plurality of fiber-optical grating temperature sensors 5 can adopt respectively an optical fiber to be connected in series, and can realize quasi-distributed measurement.
As shown in Figure 3, grating demodulation instrument 2 comprises broadband or tuning source 8, three coupling mechanisms 9, two photodetectors 10, two wave filters 11, reference channel and A/D converters 12.The light that broadband or tuning source 8 send enters the first coupling mechanism, first coupling mechanism Yi road the second coupling mechanism incident light arrives with reference to grating passage, another Lu Jing tri-coupling mechanism incident lights of the first coupling mechanism are after sensing grating passage, the light reflecting with reference to the fiber-optical grating temperature sensor of grating passage is through the second coupling mechanism, the first photodetector 10, the first wave filter 11 enters A/D converter 12, the light that the fiber-optical grating temperature sensor of sensing grating passage reflects is through the 3rd coupling mechanism, the second photodetector 10, the second wave filter 11 enters A/D converter 12, two-way photodetector 10 detects temperature variant wavelength signals and is changed into electric signal, gained electric signal is processed through wave filter 11 filtering, by A/D converter 12, changed into digital signal, real-time displays temperature value on computing machine 1.
The specific works flow process of the infant incubator temperature monitoring system of a kind of fiber-optic grating sensor in the present embodiment is as follows:
1, to a plurality of fiber-optical grating temperature sensor 5 numberings with different centre wavelengths that are connected in series by optical fiber, be fixed in point to be monitored, its arrangement mode is to lay around infant incubator surrounding inwall, as shown in Figure 2.
2, start on computing machine 1 parameters such as sensor parameters, data acquisition time interval, temperature bound alarming value, temperature differential temperature alarming value are set.
3, a plurality of fiber-optical grating temperature sensors 5 are measured the temperature of monitoring point respectively, and its inner centre wavelength changes along with the temperature variation of monitoring point, and export corresponding light signal.
4, grating demodulation instrument 2, by the light signal of a plurality of fiber-optical grating temperature sensor 5 outputs being carried out to photodetection, denoising amplification, A/D conversion and demodulation, obtains real-time temperature data and shows in real time on computing machine 1.
5, when real-time temperature data reaches predefined alarming value, on computing machine 1 screen, show corresponding alarm prompting, LED alarm lamp and hummer work simultaneously, reminds monitoring personnel to check the corresponding insulation can that occurs alarm.
Claims (4)
1. the infant incubator temperature monitoring system of fiber-optic grating sensor, it is characterized in that: comprise the computing machine (1), grating demodulation instrument (2) and the acousto-optic alarm module (3) that are positioned at main Control Room, be positioned at the identical a plurality of infant incubators (4) of structure in ward; Grating demodulation instrument (2) is connected with computing machine (1) respectively with acousto-optic alarm module (3), the surrounding inwall of each infant incubator is equipped with the fiber-optical grating temperature sensor (5) of a plurality of serial connections, and in a plurality of infant incubators, the fiber-optical grating temperature sensor (5) of serial connection is connected to grating demodulation instrument (2) by FC interface respectively.
2. the infant incubator temperature monitoring system of fiber-optic grating sensor according to claim 1, is characterized in that: described a plurality of fiber-optical grating temperature sensors (5) all have different centre wavelength.
3. the infant incubator temperature monitoring system of fiber-optic grating sensor according to claim 1, it is characterized in that: described grating demodulation instrument (2) need to be selected 1 ~ 32 passage according to monitoring point number, on 1 passage, can be connected in series a plurality of fiber-optical grating temperature sensors (5) of 1 ~ 20 different wave length.
4. the infant incubator temperature monitoring system of fiber-optic grating sensor according to claim 1, is characterized in that: described sound and light alarm module (3) comprises LED lamp (6) and hummer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410176275.0A CN103940531A (en) | 2014-04-29 | 2014-04-29 | Infant incubator temperature monitoring system with fiber bragg grating sensors |
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| CN201410176275.0A CN103940531A (en) | 2014-04-29 | 2014-04-29 | Infant incubator temperature monitoring system with fiber bragg grating sensors |
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| CN103940531A true CN103940531A (en) | 2014-07-23 |
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| CN201410176275.0A Pending CN103940531A (en) | 2014-04-29 | 2014-04-29 | Infant incubator temperature monitoring system with fiber bragg grating sensors |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104243925A (en) * | 2014-09-19 | 2014-12-24 | 王学军 | Real-time central monitoring system for infant incubator |
| CN112254839A (en) * | 2020-11-09 | 2021-01-22 | 深圳市沛元科技有限公司 | Fiber bragg grating temperature measurement system of communication machine room and temperature detection method of communication machine room |
| CN114018431A (en) * | 2021-11-09 | 2022-02-08 | 江苏工程职业技术学院 | Multichannel distributed optical fiber temperature detection device |
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| CN203869790U (en) * | 2014-04-29 | 2014-10-08 | 中国计量学院 | Infant incubator temperature monitoring system with fiber bragg grating sensors |
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2014
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| US6443885B1 (en) * | 1999-12-17 | 2002-09-03 | DRäGER MEDIZINTECHNIK GMBH | Process for operating an incubator |
| CN201764989U (en) * | 2010-08-25 | 2011-03-16 | 四川大学华西第二医院 | Baby incubator temperature and humidity monitoring and alarming system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104243925A (en) * | 2014-09-19 | 2014-12-24 | 王学军 | Real-time central monitoring system for infant incubator |
| CN112254839A (en) * | 2020-11-09 | 2021-01-22 | 深圳市沛元科技有限公司 | Fiber bragg grating temperature measurement system of communication machine room and temperature detection method of communication machine room |
| CN114018431A (en) * | 2021-11-09 | 2022-02-08 | 江苏工程职业技术学院 | Multichannel distributed optical fiber temperature detection device |
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Application publication date: 20140723 |