CN110261005A - A kind of fiber optic network new energy battery temperature monitoring system - Google Patents
A kind of fiber optic network new energy battery temperature monitoring system Download PDFInfo
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- CN110261005A CN110261005A CN201910689340.2A CN201910689340A CN110261005A CN 110261005 A CN110261005 A CN 110261005A CN 201910689340 A CN201910689340 A CN 201910689340A CN 110261005 A CN110261005 A CN 110261005A
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- fiber
- new energy
- fiber optic
- battery temperature
- energy battery
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
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Abstract
A kind of fiber optic network new energy battery temperature of the present invention monitors system, including four road optic-fiber monitoring systems, the single-path optical fiber monitoring system includes light path module, signal monitoring and processing module and measurement optical fiber, light path module includes light source, fiber coupler, signal monitoring and processing module, and signal monitoring and processing module include photodetector, high-speed AD acquisition device, nRF24L01 wireless module, DSPC64X and computer disposal.The present invention has optical signal not by the electromagnetic interference of power equipment, and each battery modules situation of comprehensive monitoring, high sensitivity, measurement accuracy is high, is by simply easily building the remarkable advantages such as service life length.
Description
Technical field
The invention belongs to new energy battery detection technical fields, particularly relate to a kind of fiber optic network new energy battery temperature
Monitoring system.
Background technique
It is well known that new-energy automobile is all being greatly developed in countries in the world, China is even more included in new to seven great strategies
Among emerging industry, 17,000,000 are up to the year two thousand thirty New Energy Sources In China automobile volume of production and marketing is estimated, however over the past two years, new energy
Automobile safety accident takes place frequently, and therefore, is just particularly important to the safety monitoring of battery modules.
Currently, use is still point type thermometric to the monitoring of new energy battery temperature, and point type thermometric is weak electric signal, vulnerable to electricity
Magnetic disturbance, at the same be used for volume battery detection when it is cumbersome, it is time-consuming and laborious.Therefore, the battery pack of new-energy automobile needs to configure electricity
Pond temperature monitoring system is monitored every piece of single battery mould group, and by communication line the temperature of each single battery
Parameter uploads to computer, is managed concentratedly by computer and is handled, and alarm and control signal are issued, based on the above reasons,
It is proposed that a kind of fiber optic network new energy battery temperature monitors system.
Summary of the invention
The present invention is completed to solve in the prior art insufficient, and the object of the present invention is to provide a kind of signals
By force, not vulnerable to electromagnetic interference, convenient for simultaneously for volume battery detection and time saving and energy saving fiber optic network new energy battery temperature
Monitoring system.
To achieve the above object, the invention provides the following technical scheme: a kind of fiber optic network new energy battery temperature monitors
System, which is characterized in that including four road optic-fiber monitoring systems, the single-path optical fiber monitoring system includes light path module, signal prison
It surveys and processing module and measurement optical fiber.
Preferably, the light path module includes light source, fiber coupler, fiber optic splitter and optical filter.
Preferably, the coupling ratio of the fiber coupler is 1:1.
Preferably, the light source is specially laser, and laser generates the laser pulse of certain repetition rate fixed pulse width,
Laser pulse enters measurement optical fiber by fiber coupler.
Preferably, the signal monitoring and processing module includes photodetector, high-speed AD acquisition device, nFR24L01 is wireless
Module, DSPC64X and computer.
The light that the photodetector is used to export optical filter carries out photoelectric conversion, converts optical signals to electric signal；
The high-speed AD acquisition device is for acquiring electric signal and inputting computer disposal after being converted into digital signal；
The DSPC64X is used for Digital Signal Processing；
The nFR24L01 wireless module, which is used to for the temperature data after computer disposal to be transferred to terminal, carries out temperature curve
Display.
Compared with prior art, the beneficial effects of the present invention are: 1, battery temperature monitors the optical signal used, not by electric power
The electromagnetic interference of equipment.
2, battery temperature monitoring system uses all -fiber, strong anti-interference performance, and good insulation preformance is asked without puncturing, burning etc.
Topic.
3, the case where monitoring point is continuous, can monitor each battery modules in all directions.
4, high sensitivity, measurement accuracy are high.
5, the service life is long, and system is simple, easily builds.
Detailed description of the invention
A kind of single-path optical fiber Fundamentals of Supervisory Systems figure of fiber optic network new energy battery temperature monitoring system of Fig. 1 present invention；
A kind of Technology Roadmap of fiber optic network new energy battery temperature monitoring system of Fig. 2 present invention；
A kind of four road optic-fiber monitoring system figures of fiber optic network new energy battery temperature monitoring system of Fig. 3 present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution:
The fiber optic network new energy battery temperature of the present embodiment monitors system, single-path system as shown in Figure 1 mainly by light path module,
Signal monitoring and processing module and measurement optical fiber three parts composition.Light path module includes light source, the fiber coupling that coupling ratio is 1:1
Device, fiber optic splitter and optical filter, light source are specially laser, and light source, which is mainly responsible for, generates certain repetition rate fixed pulse width
Laser pulse, laser pulse enter sensing measurement optical fiber by fiber coupler, and Raman scattering occurs in measurement optical fiber, generates
Anti-Stokes and Stokes light, two kinds of light enter fiber optic splitter by fiber coupler, then are exported by optical filter
Anti-Stokes and Stokes light.
It is output and then enter signal monitoring and processing module, signal monitoring and processing module include photodetector, high-speed AD
Collector, nFR24L01 wireless module, DSPC64X and computer.Firstly, Anti-Stokes and Stokes light enters photoelectricity spy
It surveys device and carries out photoelectric conversion, electric signal is switched to by optical signal, light source generates the synchronization electric signal of light pulse simultaneously, works as lock-out pulse
When being high level, DSPC64X is acquired, and the sample rate of DSPC64X capture card is constant during acquisition, different in this way
Acquisition time just corresponds to the different location in optical fiber, and by four-dimensional netted location algorithm output, collected data pass through
Transmission line passes on computer, and computer carries out data processing by software, demodulates temperature, and pass through the wireless mould of nFR24L01
Block is transferred to terminal progress temperature curve and shows.
The fiber optic network new energy battery temperature of the present embodiment monitors system, and laser pulse as shown in Figure 2 passes through optical fiber coupling
Clutch enters the sensing measurement optical fiber being coiled in battery modules, and Raman scattering occurs in measurement optical fiber, generates Anti-Stokes
With Stokes light, two kinds of light enter fiber optic splitter by fiber coupler, then are exported by optical filter, visit subsequently into photoelectricity
It surveys device and carries out photoelectric conversion, electric signal is switched to by optical signal, collected data are passed on computer by transmission line, computer
Data processing is carried out by software, show that temperature information, laser issue the pulse signal of fixed frequency, and be simultaneously emitted by synchronization
Electric impulse signal, the acquisition of control triggering DSP, DSP carries out data acquisition according to certain sample rate, then passes through computer
Software processing obtains location information, studies temperature and location information by Experimental comparison, while improving system and optical fiber loop, most
New energy car battery temperature monitoring system is formed afterwards.
The fiber optic network new energy battery temperature of the present embodiment monitors system, No. four as shown in Figure 3 laser with-it is fixed
Repetition rate issues the pulse of equal in width, and pulse is incident in four road sensing measurement optical fiber, it is assumed that at the beginning of being incident on optical fiber from pulse
Start timing when beginning position, then incident light scatters from being incident on fibre scattering point position, and scatters light from scattering point
Place returns to optical fiber initial end, obtains four kinds of different time data of abnormal battery modules by four channels, then using spy
Fixed four-dimensional network time algorithm determines the time finally to be accurately positioned battery modules, and the method is positioned compared to single laser
Accuracy is higher, more stable.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of fiber optic network new energy battery temperature monitors system, which is characterized in that described including four road optic-fiber monitoring systems
Single-path optical fiber monitoring system includes light path module, signal monitoring and processing module and measurement optical fiber.
2. a kind of fiber optic network new energy battery temperature according to claim 1 monitors system, it is characterised in that: the light
Road module includes light source, fiber coupler, fiber optic splitter and optical filter.
3. a kind of fiber optic network new energy battery temperature according to claim 2 monitors system, it is characterised in that: the light
The coupling ratio of fine coupler is 1:1.
4. a kind of fiber optic network new energy battery temperature according to claim 3 monitors system, it is characterised in that: the light
Source is specially laser, and laser generates the laser pulse of certain repetition rate fixed pulse width, and laser pulse passes through fiber coupling
Device enters measurement optical fiber.
5. a kind of fiber optic network new energy battery temperature according to claim 4 monitors system, it is characterised in that: the letter
Number monitoring with processing module include photodetector, high-speed AD acquisition device, nFR24L01 wireless module, DSPC64X and computer;
The light that the photodetector is used to export optical filter carries out photoelectric conversion, converts optical signals to electric signal；
The high-speed AD acquisition device is for acquiring electric signal and inputting computer disposal after being converted into digital signal；
The DSPC64X is used for Digital Signal Processing；
The nFR24L01 wireless module, which is used to for the temperature data after computer disposal to be transferred to terminal, carries out temperature curve
Display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910689340.2A CN110261005A (en) | 2019-07-29 | 2019-07-29 | A kind of fiber optic network new energy battery temperature monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910689340.2A CN110261005A (en) | 2019-07-29 | 2019-07-29 | A kind of fiber optic network new energy battery temperature monitoring system |
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| CN110261005A true CN110261005A (en) | 2019-09-20 |
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| CN201910689340.2A Pending CN110261005A (en) | 2019-07-29 | 2019-07-29 | A kind of fiber optic network new energy battery temperature monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865743A (en) * | 2021-10-13 | 2021-12-31 | 广东感芯激光科技有限公司 | Optical fiber distributed battery multipoint temperature measurement system and application |
| CN114312483A (en) * | 2021-12-28 | 2022-04-12 | 重庆长安汽车股份有限公司 | Power battery temperature monitoring system, power battery and automobile |
| WO2023097582A1 (en) * | 2021-12-01 | 2023-06-08 | 山东微感光电子有限公司 | Distributed optical fiber temperature measurement device, and photovoltaic panel temperature measurement system and method |
| CN116735029A (en) * | 2023-08-09 | 2023-09-12 | 中国科学技术大学 | Battery safety monitoring system, method and device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865743A (en) * | 2021-10-13 | 2021-12-31 | 广东感芯激光科技有限公司 | Optical fiber distributed battery multipoint temperature measurement system and application |
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| CN116735029B (en) * | 2023-08-09 | 2023-11-17 | 中国科学技术大学 | Battery safety monitoring system, method and device |
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Application publication date: 20190920 |