CN106211527B - Automatic regulation type classroom lighting system - Google Patents
Automatic regulation type classroom lighting system Download PDFInfo
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- CN106211527B CN106211527B CN201610576038.2A CN201610576038A CN106211527B CN 106211527 B CN106211527 B CN 106211527B CN 201610576038 A CN201610576038 A CN 201610576038A CN 106211527 B CN106211527 B CN 106211527B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
Abstract
The invention provides automatic regulation type classroom lighting system, the system includes：Fluorescent lighting module, light sensor module, control circuit module, processing system modules, and setting module.The system can cause indoor luminous intensity to maintain setting value so that the illuminance in classroom desk for middle school student face is uniform, reasonable, effective, soft, so as to mitigate the influence of the significant change of light and uneven illumination to student eyesight.
Description
Technical field
The invention belongs to a kind of illuminator, more particularly to applies the lamp system in classroom, relates more particularly to one kind
Automatic regulation type classroom lamp system.
Background technology
Learning time of China middle school student is long, intensity is big, while again on the occasion of the body development stage, lighting environment it is fine or not right
Student eyesight can produce a very large impact.Lighting environment is poor, easily causes visual fatigue, reduces learning efficiency.Both include among these
Architectural factors, include weather conditions or natural cause again.For architectural factors, present urban land is nervous, many schools
Teaching building is built all not open enough or even narrow, causes daylighting limited or daylighting is uneven, generally requires to sacrifice and certain adopts naturally
Luminosity.For weather conditions or natural cause, different time sections or the illumination of different weather Students ' desktop in one day be present
The problems such as inadequate or uneven illumination.
Fluorescent lighting is generally used in classroom, because fluorescent lamp is compared with incandescent lamp, not only light is more
It is bright, and save.Fluorescent lamp generally use frequency conversion electronic ballast, electric frequency is improved to 30-50kHz by 50Hz, and light
The amplitude of variation of brightness is because the afterglow effect of fluorescent material becomes very small, therefore human eye fundamental sensation is less than stroboscopic, while lamp
Gloss three primary colors fluorescent powder so that light is soft, mitigates asthenopia with this.In addition, fluorescent lamp uses direct current ballast
Device, alternating current is first become direct current, with direct current lighting, also reach substantially without stroboscopic, be avoided that asthenopia, and without electromagnetism
Interference.
CN104168702A discloses classroom lighting control system, including environmental data collecting unit, control unit, light
The signal collected is conveyed to control unit by system, the environmental data collecting unit, then by control unit process signal after
Control instruction is sent to lighting system, completes signal light control.
CN104302055A discloses a kind of classroom lighting intelligent control device, is related to lighting control technology field.It is wrapped
It is steady to include single-chip microcomputer, infrared sensor of the human body module, optical sensor, button, photoelectrical coupler, relay, liquid crystal display and direct current
Voltage source, single-chip microcomputer respectively with infrared sensor of the human body module, optical sensor, button, photoelectrical coupler, liquid crystal display and direct current
Voltage-stabilized power supply is connected, and photoelectrical coupler is connected with relay, D.C. regulated power supply respectively with infrared sensor of the human body module, illumination
Sensor, button, liquid crystal display are connected.
CN105246204A discloses a kind of classroom lighting management system, wherein the collection of outdoor brightness impression device is outdoor bright
Spend information, room brilliancy induction installation collection room brilliancy information, the indoor image of infrared eye shooting, data processing dress
Put and contrasted outdoor monochrome information and room brilliancy information, when outdoor monochrome information is higher than room brilliancy information, and take the photograph
During as infrared image be present in the next image of device transmission, control illumination switch control device opens illumination, in the absence of infrared shadow
During picture, it is not turned on illuminating；When outdoor monochrome information is less than room brilliancy information, and infrared image is not present, control illumination
Switch controlling device disconnects illumination, and when infrared image be present, data processing equipment does not control lighting switchgear to disconnect illumination, shines
The unlatching and disconnection of bright switch controlling device control illumination.
CN204929318U discloses a kind of classroom lighting intelligent control device, comprising a human detection module, for examining
Survey classroom whether presence of people；One ambient light detection module, for detecting the intensity of illumination of ambient light；One display module, is used for
The current working condition of real-time displaying device；One alarm module, alarmed for time-out；One power module, 220V civil powers are converted into
Dc source；One relay module, for controlling the switch of electric light；With a controller module, for gathering human detection module
Come control relay module and alarm module work with ambient light detection module information；The controller module and human testing mould
Block, ambient light detection module, display module, alarm module and relay module communication connection, the power module and controller
Module electrically connects.
CN2014205657890A discloses a kind of eye-protecting lamp, and it can effectively reduce dazzle by engineering science structure
Generation, uniform illumination, no low frequency stroboscopic, no high frequency radiation, no high energy blue light, be beneficial to eliminate injury of the stroboscopic to eyesight,
Injury of the electromagnetic radiation to human brain is eliminated, visual fatigue is eliminated, effective pre- myopia prevention, protects memory.
CN104728736A discloses a kind of multifunctional eyes protection light, including desk lamp body, and controller, desk lamp body middle part is equipped with control
Device processed, controller upper end are equipped with bulb, and the connection of controller lower end is equipped with base, and base side is equipped with switch, controller bottom dress
There is battery, battery upper end is equipped with operating display, and operating display side is equipped with thermometer, and operating display opposite side is equipped with survey
Distance meter.
CN101515526A discloses a kind of method with coating inner wall of fluorescent tube with nano titanium dioxide, uses 2-2.5%
For nano titanium oxide water thin liquid to fluorescent tube inside coating, the particle diameter of best nano titanium oxide, both can be with below 60NM
Make initial light well-illuminated and reduced with conventional aluminum oxide inside coating than less, black sodium amalgam can be made to be reduced to the journey of needs again
Degree, 2000H lumen depreciation increase about 5%.
CN101552177A discloses a kind of band cover compact fluorescent lamp, including body, main amalgam and stem, consolidates on stem
Fixation has Auxiliary amalgam, and another Auxiliary amalgam is mounted with the centre position of fluorescent tube, and at the Auxiliary amalgam in the centre position
In electrical discharge arc region, it can in addition contain in the inner surface of tube body precoating layer titanium dioxide diaphragm.
JP 2010-038303A disclose a kind of fluorescent lamp, the fluorescent lamp have the luminous tube that is made up of quartz glass and
The luminescent coating for the radiation ultraviolet being coated on the inner surface of the luminous tube, can efficiently radiate the ultraviolet of 200~260nm of wavelength
Line, and the luminescent coating on the inner surface of above-mentioned luminous tube will not peel off easily.
WO2009/133676A1 discloses a kind of fluorescent lamp, has correlated colour temperature more than 10000K less than 17000K, Duv
Photochromic in the range of 2.5 to 5, the fluorescent lamp includes：Electric arc tube；With the fluorescence formed on the inner surface of the electric arc tube
Bisque, wherein the phosphor powder layer comprises at least：Burn red fluorescent RE powder, during it includes rare earth element as lighting
The heart, the light emitting main peak of the centre of luminescence are between 605~625nm；Glow green fluorescent RE powder, it includes rare earth element
As the centre of luminescence, the light emitting main peak of the centre of luminescence is between 540~550nm；With the coloured light fluorescent RE powder that turns blue, it is wrapped
Containing rare earth element is between 440~460nm as the centre of luminescence, the light emitting main peak of the centre of luminescence, per unit light beam
The action function efficiency that epiphysin suppresses is more than 1.0, and average color rendering index Ra is more than 80.
" application of the titanium dioxide diaphragm in fluorescent lamp ", Cheng Zhengming etc., Chinese electric lighting are 12 phases in 2010, public
Open and transparent nano titanium deoxid film is prepared in fluorescent glass tubes inwall by Sol-Gel techniques, film layer structure is fine and close, crystal grain
Particle diameter is tiny and homogeneous, compared with the nano-aluminium oxide film of routine, preferably protection can be played with smaller thickness and is made
With the unleaded helix tube band cover fluorescent lamp burning-point 600h of 9W for not applying fluorescent material black experiment and electron scanning micrograph table
It is bright, compared with the fluorescent lamp for being not coated with diaphragm, using the fluorescent lamp of the process film, its 1000h light decay reduce amplitude up to 10% with
On.
However, generally all not operatively consider and solve the above problems in the prior art, or such as only by light
Source is started with itself, such as by light source design into area source, or starting with only by the arrangement of light source, such as adjusts classroom
The layout of interior fluorescent lamp, these mode regulative modes are limited, such as higher to the design requirement of light source, or means are single,
Although as described above, there is patent document report combining environmental light to adjust indoor light, otherwise means are excessively complicated,
It is less effective.In addition, in the above prior art, fluorescent lamp also be present and have that luminescent lifetime is short, light efficiency is relatively low, ultraviolet light
The defects of poor filtration effect, and the titanium deoxid film coated easily cracks during fluorescent lamp use, serious shadow
Illumination effect and service life are rung.This area needs a kind of classroom lighting system that can solve above-mentioned technical problem simultaneously.
The content of the invention
In order to solve the above technical problems, the present inventor by further investigation and many experiments, and with Fluorescent lamp production business
Cooperative development, start with respectively from lamp system design, fluorescent lamp circuit design, fluorescent tube improvement etc. are many-sided, it is proposed that following skill
Art scheme.
In one aspect of the invention, there is provided a kind of automatic regulation type classroom lighting system, the system include：Fluorescent lamp shines
Bright module, light sensor module, control circuit module, processing system modules, and setting module.
Further, the indoor light intensity value sensed can be transferred to processing system modules by the light sensor module,
Processing system modules can be by the value and the value beforehand through setting module setting（The preferably luminous intensity of classroom or classroom position
Value or brightness values）It is compared, if indoor light intensity value exceedes the light intensity value of setting, the luminous intensity that should will be reduced
Value is transferred to control circuit module, and control circuit module control fluorescent lighting module reduces brightness so that by indoor luminous intensity
Maintain setting value；If indoor light intensity value is less than the light intensity value of setting, the light intensity value that should be improved is transferred to
Control circuit module, control circuit module control fluorescent lighting module improve brightness so that maintain indoor luminous intensity and set
Definite value；If the indoor light intensity value sensed is equal to the light intensity value of setting, processing system need not be to control circuit module
Send control signal.
Preferably, light sensor module senses to indoor light intensity value be designated as A1, the light intensity value of setting module setting
A0, the then luminous intensity or brightness value that fluorescent lighting module should change are Δ A=(A1-A0).As Δ A ＞ 0, show to reduce
Brightness of fluorescent lamp, or even extinguish fluorescent lamp when needed, to maintain the light intensity value A0 of setting；As Δ A ＜ 0, show to carry
High brightness of fluorescent lamp, to maintain the light intensity value A0 of setting；As Δ A=0, brightness of fluorescent lamp remains unchanged.
Preferably, the light sensor module senses indoor luminous intensity in real time；Or regularly sense indoor luminous intensity, example
Such as every 1-10 minutes, preferably 3-5 minutes, indoor luminous intensity is carried out（That is brightness）Detection.
Preferably, the light sensor module includes multiple light sensors, and the fluorescent lighting module includes multiple
Fluorescent lamp, light sensor are located at the diverse location in classroom, sense the indoor luminous intensity of relevant position, the room light that will be sensed
Intensity level is transferred to processing system modules, by processing system modules via control circuit module to light sensor position
Brightness of fluorescent lamp makes regulation.
It is highly preferred that a light sensor module is set near each fluorescent lighting module.
The setting module, which can have, to be used to show that input value obtains display device, such as display screen.Setting value can basis
Student eyesight brightness requirement is selected, such as be may be referred to middle and primary schools' classroom lighting and illumination sanitary standard and selected.
In a preferred embodiment, the fluorescent lamp is specular removal eye-protecting lamp, and the fluorescent tube of the specular removal eye-protecting lamp is
Fluorescent glass tubes, the inwall of fluorescent glass tubes are coated with transparent nano-titanium dioxide film.
In a preferred embodiment, wherein the thickness of the nano thin-film is preferably 30 ~ 250nm.
The glass material of the fluorescent glass tubes is preferably the glass of high silicon content.
It is highly preferred that the silicone content in the glass is with SiO2It is calculated as 70-85wt.%, preferably 80wt.%.
In a preferred embodiment, the processing system modules use single-chip microcomputer as main control unit.It is highly preferred that
The CPU that the single-chip microcomputer is selected is 16/32 risc processor S3C2410A that Samsung companies release.S3C2410A is used
ARM920T kernels, the grand unit of CMOS standards of 0.18um techniques and memory unit, the present inventor are additionally closed to it
Reason extension, is integrated with following internal unit：16KB Instruction Caches and 16KB data Cache, MMU, support TFT LCD to control
Device, nand flash memory controller, 3 passage UART, 4 passage DMA, 4 passage PWM timers, I/O mouths, RTC, 8 10, passage ADC and
Touch screen interface, IIC-BUS interfaces, IIS-BUS interfaces, usb host, equipment interface, SD, mmc card interface, 2 road SP interfaces.Institute
Setting is stated compared with commercially available CPU, can be eliminated as the needs of system configuration additional devices, so as to provided the user low price,
Low-power consumption, the solution of high-performance microcontroller.
Preferably, the control circuit module is the circuit control system based on CAN.It is highly preferred that described be based on
The circuit control system of CAN uses Field Bus Control Technology, forms full-separate microcomputer lamp light control system, maximum web
Network number of contacts 110, peak transfer rate 1Mb/s, maximum transmission distance 10km, transmission means and medium are differential voltage and double
Twisted wire so that can effectively solve the deficiency of above-mentioned microcomputer type lamp light control system, the system good through practical effect
Small investment, function is strong, and reliability is high, is easy to extend, is particularly suitable for control needs of the multiple classrooms of whole school to light units.This hair
A person of good sense has found that the CAN buses can be string type communication network, and communication uses short frame structure, the effective word joint number of each frame
For 8 so that transmission time is short, and corrupt data rate is low.When node gross error, there is automatic closing function, cut off this and connect
Point contacts with bus, makes other contacts in bus and communicates unaffected, has stronger antijamming capability, with other controls
Mode processed is compared, and the communication of its data has higher reliability, real-time and flexibility, disclosure satisfy that school to the reliable of light source
Property require.
The fluorescent tube is preferably fluorescent glass tubes.It is highly preferred that the inwall of the fluorescent glass tubes is received coated with transparent
Rice titanium deoxid film.
It is known to those skilled in the art that fluorescent lamp light decay is mainly the atoms such as sodium, the potassium separated out by glass-tube and the mercury in pipe
Generation amalgam cause glass-tube black because its, therefore generally between phosphor powder layer and glass tube formed one layer of fine and close oxide
Film, using it is more be aluminum oxide film.Titanium dioxide has higher transmission to visible ray due to that can absorb ultraviolet light
Rate, when the nano-titanium dioxide film of densification is made in tube inner wall, moreover it is possible to reduce the risk of ultraviolet leakage, improve and use
Security.
It is particularly preferred that mixed with titanium dioxide nanofiber in the titanium deoxid film.Titanium dioxide nanofiber with
The mass ratio of titanium oxide nanoparticles can be 1 in titanium deoxid film:6~1:25, preferably 1:10~1:20.
Further, the titanium deoxid film is particularly preferably made by the following method：
（1）By butyl titanate（That is positive four butyl ester of metatitanic acid）Mixed with ethanol and acetic acid, be sufficiently stirred obtained solution A；
（2）Water, ethanol and nitric acid are mixed, are sufficiently stirred obtained solution B；
（3）Solution B is injected in solution A under conditions of stirring, is sufficiently stirred and obtains transparent colloidal sol；
（4）In step（3）Titanium dioxide nanofiber, titanium dioxide nanofiber and titanium are added in the clear solution of acquisition
The mol ratio of sour four butyl esters is 1:6~1:25, preferably 1:10~1:20；
（5）The colloidal sol is coated in the inwall of fluorescent glass tubes, allows the dissolved glue film to be formed to dry under field conditions (factors), then
Calcine in an oven, obtain transparent titanium dioxide dense film.
The inventors discovered that the generation that can suppress to precipitate in hydrolysis and polycondensation process by this method, can obtain dioxy
It is homogeneous to change titanium nano thin-film, transparency is high.
Preferably, compared with the conventional method, in the method, ethanol total amount and the mol ratio of butyl titanate for (5~
30):1, preferably 25:1.Step（1）With step（2）Proportion of ethanol 1：3~3：1 weight.
Preferably, in step（1）In, the mol ratio of acetic acid and butyl titanate is (1~3):1, preferably 1.5:1.
In step（2）In, the amount of water is according to butyl titanate：Water=1：(1 ~ 5), preferably 1：2 amount match somebody with somebody and taken.Nitric acid
Amount according to butyl titanate：Nitric acid=1：(0.1 ~ 0.5), preferably 1：0.12 amount match somebody with somebody and taken.
Preferably, in step（3）In, triethanolamine is added into mixed solution in whipping process, with maintenance system pH
For 4 ~ 9, preferably 5.5 ~ 8.5.The triethanolamine can play chelating agent effect, and the selection of itself and foregoing acetate catalyst is protected jointly
It is unified to have held the collaboration of catalyst and chelating agent acid-base property, precipitation can be suppressed and produced, form the vitreosol of stable homogeneous.
In calcination process, 1 ~ 4h, preferably 2.5h are calcined under air atmosphere preferably at a temperature of 260 ~ 600 DEG C.
The coating is preferably but not limited to carry out by way of spin coating or curtain coating.
The thickness of the nano thin-film is preferably 30 ~ 250nm, preferably 50 ~ 100nm.
The inventors discovered that when as prior art, titania fiber is added without in titanium deoxid film i.e.
When titanium deoxid film is only used only, then during fluorescent lamp use, with the extension of usage time, due to expand with heat and contract with cold with
And the factor such as decrease of the binding ability between glass, titanium deoxid film easily ftracture, even most tiny splits
Line, extreme influence can be all produced to illumination effect, such as the homogeneous soft of light can be produced a very large impact.The present invention exists first
Titanium dioxide nanofiber is added in titanium dioxide, the tensile strength of titanium deoxid film is enhanced, effectively prevents two
The cracking of thin film of titanium oxide.This report that still belongs to the first time in the prior art.Detect and find, titanium dioxide nanofiber in the present invention
Addition can make fluorescent tube titanium dioxide nano-film life-span improve 1 ~ 5 times, preferably 2 ~ 3 times.
The present inventors have additionally discovered that due to titanium dioxide nanofiber and titania nanoparticles have it is fabulous compatible
Property, compared with other nanofibers, interfacial effect will not be produced, and titanium dioxide nanofiber also has well transparent
Degree, therefore adding for titanium dioxide nanofiber will not produce to the UV Absorption degree and light transmittance of titanium dioxide nano-film
Influence, such effect is that previous institute is unanticipated.
In a particularly preferred embodiment, the titanium dioxide nanofiber is carried out by method of electrostatic spinning.
The method of electrostatic spinning preferably includes following steps：
（1）Prepare spinning solution：Butyl titanate is added to the frosted mouth for filling glacial acetic acid and absolute ethyl alcohol mixed solvent
In vial, it is subsequently placed on magnetic stirring apparatus and is stirred at room temperature 1 ~ 20 minute, polyvinylpyrrolidone is then added to metatitanic acid
In four butyl acetate solutions, continue stirring 1 ~ 5 hour until polyvinylpyrrolidone dissolving completely, obtains uniform yellow transparent spinning
Liquid；
（2）Prepare butyl titanate/polyvinylpyrrolidone composite fiber precursor：By the butyl titanate prepared and polyethylene
The mixed solution of pyrrolidones is fitted into syringe, and the stainless steel syringe needle that one oral area of connection polishes on syringe is as spinneret
Head, spinning head internal diameter are 0.1mm ~ 1.5mm, and spinning flow velocity is 0.2 ~ 1ml/h；Set and receive in the injection direction of spinning head
Plate, have conductive substrates on receiver board（It is preferred that aluminium foil）, then the glass substrate cleaned up is attached in conductive substrates, by height
The positive pole of voltage source is connected on spinning head, and negative pole is connected on receiver board, collects fiber by receiver board, then startup power supply
And applying voltage, voltage is 8 ~ 15kV, and interelectrode distance is 15 ~ 28cm；In course of injection, jet by solvent volatilization and
After solute solidification, continuous-stable is sprayed 1 ~ 2 hour, and several microns even fiber of tens nanometer diameters are obtained on receiver board；
（3）Calcine butyl titanate/polyvinylpyrrolidone composite fibre：Surface there is into TiO 2 precursor/polymerization
The glass substrate of thing composite fiber precursor is placed in high temperature oven calcining, removes polyvinylpyrrolidone, it is as pure to leave material
Titania fiber.
In step（3）In, it is preferable that 550 DEG C are to slowly warm up to 2 DEG C/min since room temperature in Muffle furnace,
550 DEG C of 1.5 ~ 4h of calcining, furnace cooling, obtain white translucent titanium dioxide nanofiber.
In a further preferred embodiment, the glass material of the fluorescent glass tubes is the high silicon content of high silicon content
Glass.
It is further preferred that doped with Eu in the glass of the high silicon content of the high silicon content2+、Tb3+And Dy3+In extremely
It is few a kind of, two or more.
Stereometer based on glass basis, Eu2+、Tb3+And Dy3+Doping concentration be preferably each independently 0.5 ~
1.5mol/L, preferably 1.0mol/L.Research finds, Eu2+、Tb3+And Dy3+Doping can improve luminous intensity.In addition, high silicon
The fluorescent glass of content has the advantages that preferable heat endurance, chemical stability, be especially suitable for fluorescent lamp material.It is this
Three interionic quantum-cuttings and energy transmission effect are not reported in the prior art.Can by the three interionic effects
More effectively to activate the centre of luminescence, luminous efficiency is improved.
The glass bag of the high silicon content contains：
| SiO2 | 70-85wt.% |
| Na2O | 1-5wt.% |
| CaO | 5-15wt.% |
| MgO | 1-5wt.% |
| Al2O3 | 3-8wt.% |
| K2O | 2-5wt.% |
| SO3 | 0.01-0.20wt.% |
| CeO2 | 0.0010-0.0025wt.% |
| With Fe2O3Total iron of meter | 0.01-0.08wt.% |
| Redox ratio | Less than 0.40 |
The spectral quality that wherein glass measures under 5.5 mm of thickness is as follows：Existed using C.I.E. standard sources " A "
100-200 nm wavelength（It is ultraviolet）In the range of transmissivity more than 91% is measured with 2 ° of observers.This is than conventional sodium calcium silicon glass
The ultraviolet wavelength transmitance of glass is higher by least 20%.
The inventors discovered that because the glass has relatively low sodium, potassium content, reduce and draw with the mercury generation amalgam in pipe
The problem of glass-tube blacks is played, so as to further increase the service life of fluorescent tube.Fluorescent lamp glass coated with titanium dioxide
The cost of pipe can increase, so if if the life-span of fluorescent tube in itself can not substantially increase, it will be eyeshield fluorescent lamp
Cost dramatically increases, therefore the use of above-mentioned glass is coated with the fluorescent glass tubes of titanium deoxid film particularly suitable for using,
That is, good cost supporting function can be played to fluorescent tube as use.
In the present invention, above-mentioned lighting system can cause indoor luminous intensity to maintain setting value so that classroom middle school student
The illuminance of desk top is uniform, reasonable, effective, soft, and student is regarded so as to mitigate the significant change of light and uneven illumination
The influence of power.Especially, by using the above-mentioned special fluorescent tube coated with titanium dioxide nano-film, service life
Long, stability is high, and colour rendering is high, and illumination is reasonable, is adapted to the physiological vision requirement of human body.
Brief description of the drawings
Fig. 1 is the schematic diagram according to the automatic regulation type classroom lighting system of the present invention.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples：
Embodiment 1
To be disposed with the classrooms of 12 fluorescent lamps as experimental subjects, illumination deficiency if natural light is only leaned in the classroom, in addition
It is obvious in external sunlight light intensity change every morning to every afternoon.It is photosensitive in the additional setting one of every lamp with reference to figure 1
The indoor light intensity value sensed is transferred to processing system modules by sensing module, the light sensor module in real time, processing
System module by the value compared with the value set beforehand through setting module, if indoor light intensity value exceed setting light
Intensity level, then the light intensity value that should be reduced is transferred to control circuit module, control circuit module control fluorescent lighting mould
Block reduces brightness so that indoor luminous intensity is maintained into setting value；If indoor light intensity value is less than the light intensity value of setting,
The light intensity value that should be improved is transferred to control circuit module, control circuit module control fluorescent lighting module improves bright
Degree so that indoor luminous intensity is maintained into setting value；If the indoor light intensity value sensed is equal to the light intensity value of setting,
Processing system to control circuit module without sending control signal.The fluorescent tube can regard company or a bright science and technology derived from section
Company.
In this embodiment, due to adjusting brightness of fluorescent lamp, the unexpected change of the brightness of the imperceptible fluorescence of student in real time
Change, the illuminance of whole classroom whole day class period desk top is uniform, soft, mitigates significant change and the uneven illumination of light
Influence to student eyesight, student's repercussion are very good.
Embodiment 2
In the system shown in embodiment 1, classroom fluorescent tube is fluorescent glass tubes, and the inwall of the fluorescent glass tubes is coated with saturating
Bright nano-titanium dioxide film, the thickness of the nano-titanium dioxide film is 30nm, is adulterated in nano-titanium dioxide film
There is 10wt.% titanium dioxide nanofiber, the average diameter of the fiber is 30 nanometers, and average length is 30 μm.
Comparative example 1
With differing only in nano-titanium dioxide film undoped with titanium dioxide nanofiber for embodiment 2.
Through being tested according to GB/T 9468 and GB 10682, embodiment 1 is received compared with the eye-protecting lamp fluorescence of comparative example 1
There is 2 times of the time lengthening of segmentation crack in rice titanium dioxide, reaches 8000 hours.Such effect is not expect previously
's.
To sum up, classroom lighting system of the invention, brightness of fluorescent lamp, whole classroom class period desk can be adjusted in real time
The illuminance in face is uniform, soft, reduces the adverse effect to student eyesight, in addition the administration of titanium dioxide nano-film, can
Effectively improve light efficiency, cross filtering ultraviolet, and enhancing service life, it is significantly cost-effective.
This written description discloses the present invention, including optimal mode using example, and also enables those skilled in the art
Manufacture and using the present invention.The present invention can patentable scope be defined by the claims, and this area skill can be included
Other examples that art personnel expect.If this other examples have the structural elements of the not literal language different from claims
Element, or if this other examples include equivalent structure element of the literal language without substantial differences with claims,
Then this other examples are intended to be within the scope of claims.In the case where inconsistent degree will not be caused, by reference to
It will be incorporated herein in place of all references referred to herein.
Claims (7)
1. automatic regulation type classroom lighting system, the system include：Fluorescent lighting module, light sensor module, control circuit
Module, processing system modules, and setting module, wherein the indoor light intensity value sensed is transferred to by the light sensor module
Processing system modules, processing system modules by the value compared with the value set beforehand through setting module, if room light
Intensity level exceedes the light intensity value of setting, then the light intensity value that should be reduced is transferred into control circuit module, control circuit mould
Block control fluorescent lighting module reduces brightness so that indoor luminous intensity is maintained into setting value；If indoor light intensity value is small
In the light intensity value of setting, then the light intensity value that should be improved is transferred to control circuit module, control circuit module control is glimmering
Light lamp lighting module improves brightness so that indoor luminous intensity is maintained into setting value；If indoor light intensity value sensed etc.
In the light intensity value of setting, then processing system to control circuit module without sending control signal；
The fluorescent tube of the fluorescent lighting module is fluorescent glass tubes, and the inwall of the fluorescent glass tubes is coated with transparent nanometer two
Thin film of titanium oxide, the thickness of the nano thin-film is 30 ~ 250nm；The titanium deoxid film is made by the following method：
（1）Butyl titanate is mixed with ethanol and acetic acid, is sufficiently stirred obtained solution A；
（2）Water, ethanol and nitric acid are mixed, are sufficiently stirred obtained solution B；
（3）Solution B is injected in solution A under conditions of stirring, is sufficiently stirred and obtains transparent colloidal sol；
（4）In step（3）Titanium dioxide nanofiber, titanium dioxide nanofiber and metatitanic acid are added in the transparent colloidal sol obtained
The mol ratio of four butyl esters is 1:6~1:25；
（5）The colloidal sol is coated in the inwall of fluorescent glass tubes, allows the dissolved glue film to be formed to dry under field conditions (factors), is then drying
Calcined in case, obtain transparent titanium dioxide dense film；
The processing system modules use single-chip microcomputer, and as main control unit, the CPU that the single-chip microcomputer is selected pushes away for Samsung companies
The 16/32 risc processor S3C2410A gone out, S3C2410A use ARM920T kernels, and the CMOS standards of 0.18um techniques are grand
Unit and memory unit, and it is integrated with following internal unit：16KB Instruction Caches and 16KB data Cache, MMU, support
TFT lcd controller, nand flash memory controller, 3 passage UART, 4 passage DMA, 4 passage PWM timers, I/O mouths, RTC, 8 is logical
10, road ADC and touch screen interface, IIC-BUS interfaces, IIS-BUS interfaces, usb host, equipment interface, SD, mmc card interface, 2
Road SP interfaces.
2. system according to claim 1, wherein the light sensor module senses indoor luminous intensity in real time.
3. system according to claim 1, wherein the light sensor module includes multiple light sensors, the fluorescent lamp shines
Bright module includes multiple fluorescent lamps, and light sensor is located at the diverse location in classroom, senses the indoor luminous intensity of relevant position, will
The indoor light intensity value sensed is transferred to processing system modules, by processing system modules via control circuit module to photosensitive biography
The brightness of fluorescent lamp of sensor position makes regulation.
4. system according to claim 1 or 2, it is characterised in that the glass material of the fluorescent glass tubes is that high silicon contains
The glass of amount.
5. system according to claim 4, it is characterised in that the silicone content in the glass is with SiO2It is calculated as 70-
85wt.%。
6. system according to claim 1, wherein the processing system modules use single-chip microcomputer as main control unit.
7. system according to claim 1, wherein the control circuit module is the circuit control system based on CAN
System.
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| CN106224820B (en) * | 2016-07-25 | 2019-05-31 | 连云港市一明医疗科技有限公司 | A kind of high photosynthetic efficiency eye-protecting lamp |
| CN107567153B (en) * | 2017-10-31 | 2024-03-29 | 广东工业大学 | System and method for adjusting indoor light |
| CN109379820A (en) * | 2018-09-28 | 2019-02-22 | 朱晓 | Classroom illumination system with region control |
| CN109451625B (en) * | 2018-09-28 | 2020-12-04 | 朱晓 | Lighting control system |
| CN109905944A (en) * | 2019-04-10 | 2019-06-18 | 安徽建筑大学 | A kind of intelligent illuminating system based on citopic |
| CN110401997B (en) * | 2019-07-26 | 2021-11-26 | 张兢桐 | Indoor myopia prevention and control lighting system based on controllable ultraviolet light |
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| CN101515526A (en) * | 2008-02-21 | 2009-08-26 | 上海振欣电子工程有限公司 | Method for coating inner wall of fluorescent tube with nano titanium dioxide |
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| CN105636265A (en) * | 2015-12-29 | 2016-06-01 | 中国计量学院 | Novel LED classroom lamp |
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