CN104481386B - Multi-media classroom lighting control system and method - Google Patents
Multi-media classroom lighting control system and method Download PDFInfo
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- CN104481386B CN104481386B CN201410708553.2A CN201410708553A CN104481386B CN 104481386 B CN104481386 B CN 104481386B CN 201410708553 A CN201410708553 A CN 201410708553A CN 104481386 B CN104481386 B CN 104481386B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a kind of multi-media classroom lighting control system and method, the system includes：Power module, for providing the voltage required for the course of work for system；Temperature detecting module, for measuring the temperature in multi-media classroom；Photosensitive module, the light intensity inside and outside for detecting multi-media classroom；Shade position detection module, the open position for detecting curtain；Clock module, for providing the time for system, and with timing function；One-chip computer module, is connected with multimedia on-off circuit, is instructed for receiving photosensitive module, shade position detection module, clock module and the information of multimedia on-off circuit, and according to the delivering received；Motor drive module, according to the order-driven motor of one-chip computer module, and then adjusts shade position；Houselights control module, is opened or closed according to light in the instruction control multi-media classroom of one-chip computer module；And display module, for showing light intensity and temperature inside and outside time, multi-media classroom.
Description
Technical field
The present invention relates to a kind of multi-media classroom lighting control system and method.
Background technology
With the development and the progress of science and technology of information technology, many schools all begin to use multimedia to be imparted knowledge to students.Many
In Media Classroom, often the media information projection such as word, figure, image, image is come out using projecting apparatus, so that
Teaching process more enriches.But use in Multimedia Teaching, reflective, unsharp feelings occur by force very much in light sometimes
Condition.Mostly at present is classroom is reached suitable light intensity by adjusting curtain and light manually.If during instruction
It is related to enabling and closing for multimedia projection equipment, the mode controlled manually needs teacher or student to go to control the rising of curtain
Or decline and houselights is opened or closed, teaching process can be influenceed, efficiency of teaching is reduced.So for multi-media classroom
Light intensity realize that intelligentized control method is extremely necessary.
At present, existing a variety of domestic intelligent curtain occur, and they are mainly accustomed to according to the work and rest of people, according to the time and
The control that intensity of illumination is opened and closed to curtain, improves the comfortableness of people's life to a certain extent.With family expenses
Automatic curtain is different, and school is likely to be daytime, the evening of being also likely to be using multi-media classroom, so simply time-based control
Domestic intelligent curtain is not particularly suited for multi-media classroom., it is necessary to close lighting apparatus near screen when using multimedia equipment
To ensure the definition of screen, when without using multimedia equipment, it is also desirable to curtain and lighting apparatus are entered according to light intensity
Row control.These situations all determine that family expenses automatic curtain is not applied for multi-media classroom, it is necessary to according to multi-media classroom
Handling characteristics, the suitable light intensity control system of design.
The content of the invention
The present invention provides a kind of multi-media classroom lighting control system and method, to solve multi-media classroom in the prior art
Interior light is too strong or excessively dark, causes the problem of student does not see screen or blackboard.
In order to solve the above technical problems, the present invention provides a kind of multi-media classroom lighting control system, including：
Power module, for providing the voltage required for the course of work for system；
Temperature detecting module, for measuring the temperature in multi-media classroom；
Photosensitive module, the light intensity inside and outside for detecting multi-media classroom；
Shade position detection module, the open position for detecting curtain；
Clock module, for providing the time for system, and with timing function；
One-chip computer module, is connected with multimedia on-off circuit, for receive photosensitive module, shade position detection module, when
The information of clock module and multimedia on-off circuit, and instructed according to the delivering received；
Motor drive module, according to the order-driven motor of one-chip computer module, and then adjusts shade position；
Houselights control module, according to one-chip computer module instruction control multi-media classroom in multiple light open or
Close；
And display module, for showing time, the inside and outside light intensity of multi-media classroom and temperature.
Preferably, the power module is used in dry cell, lithium battery and three-phase alternating-current supply with voltage stabilizing chip
One or two.
Preferably, the one-chip computer module takes single-chip minimum system, including：Model STC89C52 microcontroller
Device, reset circuit and clock oscillation.
Preferably, the photosensitive module uses illuminance sensor；The motor drive module uses model L298
Motor drive ic；The motor uses stepper motor or DC speed-reducing.
Preferably, the shade position detection module is carried out upper and lower to curtain respectively using two groups of non-contact switch
It is spacing.
A kind of multi-media classroom light control method, comprises the following steps：Step 1：After system initialization, multimedia is detected
Temperature in classroom, the inside and outside light intensity in classroom, and read access time numerical value；Step 2：Judge whether is projecting apparatus in multi-media classroom
Enable, if projecting apparatus is enabled, into step 3A, step 3B is entered if projecting apparatus not enabled；Step 3A：One-chip computer module
Judge indoor light intensity according to the information that receives, and to motor drive module, houselights control module and display
Module sends instruction；Step 3B：One-chip computer module judges outdoor light intensity according to the information received, and is driven to motor
Module, houselights control module and display module send instruction；Step 4：Motor drive module and houselights control mould
Root tuber adjusts curtain and light according to the instruction of one-chip computer module；Light in the display module display time, multi-media classroom
Intensity and temperature.
Preferably, in described multi-media classroom light control method, if the indoor light intensity in step 3A is small
In setting value, then motor is motionless in step 4, closes preceding bank light corresponding with projecting apparatus screen in multi-media classroom, opens heel row
Lamp；If the indoor light intensity in step 3A is in setting value or more than setting value, motor drive module drives in step 4
Motor closes curtain, closes bank light after preceding bank light corresponding with projecting apparatus screen in multi-media classroom, opening.
Preferably, in described multi-media classroom light control method, step 3B includes：One-chip computer module is according to connecing
The information received judges outdoor light intensity；If outdoor light intensity is less than setting value, one-chip computer module sends instruction, made
The motionless light standard-sized sheet of curtain；If outdoor intensity of light is in setting value, one-chip computer module determines whether that the light of interior is strong
Degree, and send instruction to motor drive module, houselights control module and display module；If outdoor intensity of light is more than pre-
If value, one-chip computer module determine whether interior light intensity, and to motor drive module, houselights control module and
Display module sends instruction.
Preferably, in described multi-media classroom light control method, in step 3B, outdoor intensity of light is in setting
When in value,
If the indoor light intensity that one-chip computer module judges is less than setting value, one-chip computer module sends instruction unpack window
Curtain, light Close All；
If indoor light intensity is in range of set value, one-chip computer module, which sends instruction, makes curtain motionless, and light is whole
Close.
Preferably, in described multi-media classroom light control method, in step 3B, outdoor intensity of light, which is more than, to be set
During definite value,
If the indoor light intensity that one-chip computer module judges is less than setting value, one-chip computer module sends instruction unpack window
Curtain, lamp is fully closed；
If the indoor light intensity that one-chip computer module judges is in setting value, one-chip computer module, which sends instruction, makes curtain
It is motionless, light Close All；
If the indoor light intensity that one-chip computer module judges is more than setting value, one-chip computer module sends instruction and closes window
Curtain, light Close All.
Compared with prior art, the present invention has advantages below：Multi-media classroom lighting control system can be according to display
Equipment service condition automatically adjusts to religion indoor light, while also passing through temporal information, temperature and illumination numerical value aobvious
Show that module is shown.When using projector equipment, light can be solved well causes by force multimedia projection reflective, unintelligible very much
The problem of, reduce under manual control mode, it is necessary to which teacher or student go to control rising or falling and houselights for curtain
Open or close brought influence, efficiency of teaching is improved well；, can be strong according to light when without using display device
The degree bright equipment of numerical comparatives and curtain are controlled, and not only allow teaching process to have good environment, also there is the effect of energy-conserving and environment-protective
Really.
Brief description of the drawings
Fig. 1 is the structure diagram of multi-media classroom lighting control system in the embodiment of the invention；
Fig. 2 is the circuit theory diagrams of multi-media classroom lighting control system in the embodiment of the invention；
Fig. 3 a to Fig. 3 k are respectively Fig. 2 partial enlarged drawing；
Fig. 4 a to Fig. 4 d are the application schematic diagram of multi-media classroom lighting control system in the embodiment of the invention；
Fig. 5 a to Fig. 5 d are the work of each module in multi-media classroom lighting control system in the embodiment of the invention
Make schematic flow sheet；
Fig. 6 is the schematic flow sheet of multi-media classroom light control method in the embodiment of the invention.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.It should be noted that, accompanying drawing of the present invention uses simplified form and uses non-essence
Accurate ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
As depicted in figs. 1 and 2, the lighting control system for the multi-media classroom that the present invention is provided, including：
Power module 1, for providing the voltage required for the course of work for system；
Temperature detecting module 2, for measuring the temperature in multi-media classroom；
Photosensitive module 3, the light intensity inside and outside for detecting multi-media classroom；
Shade position detection module 4, the open position for detecting curtain；
Clock module 5, for providing the time for system, and with timing function；
One-chip computer module 10, is connected with multimedia on-off circuit 6, for receiving photosensitive module 3, shade position detection module
4th, the information of clock module 5 and multimedia on-off circuit 6, and instructed according to the delivering received；
Motor drive module 7, according to the order-driven motor M of one-chip computer module 10, and then adjusts shade position；
Houselights control module 8, beats according to multiple light in the instruction control multi-media classroom of one-chip computer module 10
Open or close and close；
And
Display module 9, for showing time, the inside and outside light intensity of multi-media classroom and temperature.
The present invention is realized using said system to be automatically controlled to multi-media classroom curtain and houselights, and its is main
Control mode is：
(1) in the case of projecting apparatus is started：
If indoor and outdoor light is too strong, curtain is closed, and front-seat light is closed, and heel row light is opened；If indoor light
Moderate, curtain is closed, and front-seat light is closed, and heel row light is opened；If indoor light is excessively dark, curtain is remained stationary as, preceding bank light
Light is closed, and heel row light is opened.
(2) in the case of unused projecting apparatus or closing projecting apparatus：
When outdoor light is too strong, if indoor light is excessively bright, curtain is adjusted to appropriate location, and light is closed mode；
If indoor light is moderate, curtain is motionless, and all light are closed；If indoor light is excessively dark, curtain rises to appropriate location, institute
There is light closing.When outdoor light is moderate, if indoor light is moderate, curtain is motionless, and all light are closed；If room light
Line is excessively dark, and curtain rises to appropriate location, and all light are closed.When outdoor light is excessively dark, curtain is remained stationary as, all light
Open.
By the above-mentioned means, can not only solve screen reflecting in Multimedia Teaching, unsharp shortcoming, preferably
The effect brought of displaying multimedia, can also without using it is multimedia when religion indoor light is controlled, allow student to have
More preferable academic environment.
As shown in Fig. 2, Fig. 3 a~Fig. 3 k, the power module 1 can using dry cell, plus voltage stabilizing chip lithium battery and
It is one or two kinds of in three-phase alternating-current supply.Wherein, according to dry cell power supply, it is ensured that the DC characteristic of power supply, ripple ratio
It is smaller；According to the lithium battery power supply for adding voltage stabilizing chip, its volume is light and handy, easy for installation；It is many according to three-phase alternating-current supply
220V voltage-stabilized power supplies in Media Classroom, can provide AC power conversion the voltages such as 12V, 5V by power supply adaptor,
This scheme is easy to use, takes small volume, smaller by ectocine, and under normal circumstances can be with continued power.
Preferably, preferred scheme of the present invention is：Using three-phase alternating-current supply as power module 1, using with voltage stabilizing
The lithium battery of chip is used as stand-by power supply.The preferred scheme has the 220V voltage stabilizings in good continuous capability, multi-media classroom
Power supply has stability, it is to avoid cell voltage wild effect.And when having a power failure, lithium battery can be assign as the standby of the system
With battery, it is continuously the system and powers, further ensure that the electrical stability of system.
Please emphasis reference picture 3b, in the power module 1,220V voltage-stabilized power supplies J1 directly obtained by power supply adaptor+
12V DC voltages, then after voltage-stablizer U5 (model 7805) voltage stabilizing, obtain+5V voltages to system power supply, including motor M,
Display module 9 and one-chip computer module 10.To prevent multi-media classroom power outage causes the system to be stopped to user from bringing
Inconvenience, using standby lithium pond (+5V), can continue as systems stay when having a power failure and power.
Please emphasis reference picture 3a, one-chip computer module 10 uses single-chip minimum system, and it includes：Model STC89C52's
Microcontroller U1, reset circuit 101 and clock oscillation 102.STC89C52 is low-power consumption, 8 microcontrollers of high-performance CMOS
Device, with 8K in-system programmable components flash storages.On a single chip, 8 bit CPUs and in-system programmable components of dexterity are possessed
Flash performance, therefore microcontroller U1 can provide the high flexible, solution of super efficient for system.
Please emphasis reference picture 3c, the temperature detecting module 2 is using the temperature sensor U4 for supporting one-wire bus, and it has
Miniaturization, low-power consumption, high-performance, strong antijamming capability, the advantages of easily match somebody with somebody microprocessor, can be directly by temperature inversion into serial number
Word signal one-chip computer module 10 is handled.With continued reference to Fig. 3 c, the Pin description of the temperature sensor U4 is：GND is grounded, and DQ is
Data input/output pin, the pin P1.2, VDD for meeting microcontroller U1 connects+5V power supplys.It refer to Fig. 5 b, the TEMP
Device U4 is used to gather present real-time temperature, and its specific workflow is：Initialize, write data, read data, temperature transition and display
Temperature.
Please emphasis reference picture 3d, the photosensitive module 3 is using model po188 illuminance sensor, and it is photoelectricity collection
Into sensor, it is seen that optical range inner height is sensitive, and output current linearly changes with illumination and stability is good.In order to compare room
Inside and outside light intensity, carries out real-time curtain and light regulation.With reference to Fig. 4 a, the present embodiment employs two illuminance sensors
U6 and U7, respectively according to inside and outside curtain 20, one is used to measure outdoor intensity of illumination, and another is used in measuring chamber
Intensity of illumination, two illuminance sensors U6, U7 analog output value all carries out AD by model PCF8591 conversion chip U8
Conversion, further, conversion chip U8 export for serial ports, have saved port resource.It should be noted that due to the present embodiment
Light intensity is divided into three sections：Cross bright, moderate and excessively dark, wherein every section of corresponding illuminance sensor U6, U7 magnitude of voltage is：
1.745V~2.5V, 0.745V~1.744V, 0~0.744V.
Fig. 5 c are refer to, because the photosensitive module 3 is the intensity irradiated by illumination on illuminance sensor U6, U7
To change the change of circuit output voltage.The present embodiment design two illumination numerical value, one be outdoor light intensity, one is room
Interior light intensity, the two is AD converted by same conversion chip U8, respectively respective channel 0 (AIN0) and passage 1
(AIN1).The conversion chip U8 is to two passage wheel stream process, specific workflow：AD passages 0 are selected, processing and conversion chamber
Outer light intensity numerical value；AD passages 1 are selected, light intensity numerical value in processing and conversion chamber；Repeat the above steps.
The shade position detection module 40 of the present invention uses upper and lower non-contact switch 41,42, and curtain is carried out respectively
It is upper and lower spacing.Specifically, as shown in Figure 3 e, upper non-contact switch 41 of the invention is switched using metal approach, preferably Shanghai work
LJ18A3-8-Z/BX M18 inductance approach switches JJKG1.Incorporated by reference to Fig. 4 a, using when, two left sides are laid below curtain 20
Right symmetrical bonding jumper 21, detection and the shaking degree of reduction curtain 20 for proximity switch JJKG1, is opening curtain 20
During, when reach capacity position when, the bonding jumper 21 on curtain 20 is defeated close proximity to switch JJKG1, proximity switch JJKG1
Go out signal and low level is exported to microcontroller U1 by optocoupler U10, microcontroller U1, which is detected, powers off motor M after signal, stop
Spin-ended turn, curtain 20 stops opening.
As illustrated in figure 3f, the lower non-contact switch 42 detects circuit, preferably RPR220 types photoelectricity using infrared tube
To pipe U11.Incorporated by reference to Fig. 4 c and 4d, in the present embodiment, curtain 20 is roller shutter type, and its upper end is connected with upper roller bearing 201, lower end and
Lower roller bearing 202 is connected, and motor M is arranged on upper roller bearing 201, for driving upper roller bearing 201 to rotate.In the top of curtain 20 close to light
Electricity is to pasting a wide bar black bands 22 on the white broadband 23 of pipe U11 sides, when curtain 20 drops to bottom, black bands 22 absorb
Infrared light, is not turned on photoelectric tube U11 reception pipe, and comparator LM339 negative terminals are low level, and output pin P25 outputs are high
Level.When curtain 20 is not up to bottom, reception pipe conducting, comparator LM339 negative terminals are high level, and output pin P25 is defeated
Go out low level.So during curtain 20 is opened, P25 outputs high level, microcontroller when reaching the extreme position of lower end
Device U1 is detected and motor M is powered off after signal, is stopped the rotation, curtain 20 stops descending motion.
As shown in figure 3g, the clock module 5 using model DS1302 clock chip U3 come the time of control system.
Further, the clock module 5 is made up of clock chip U3, crystal oscillator X2 and two electric capacity C11, BT1.Its output end (pin
SCLK、I/O、) access microcontroller U1, microcontroller U1 can transfer interior data by software, and it is carried out
Control, realize to year, month, day, Sunday, when, minute, second carry out timing, and with leap year compensation function.As shown in Figure 5 a, it is described
The clock chip U3 course of work is：Initialization, instructs to clock chip U3 writing address, byte is read from clock chip U3
Data, byte number adds 1, and number of addresses adds 1, judges to read whether data terminate, if so, then terminating, above-mentioned step is repeated if it is not, returning
Suddenly, until digital independent terminates.
As illustrated in figure 3h, the multimedia on-off circuit 6 uses key switch SW-PB, access microcontroller U1.
As shown in figure 3i, the motor drive module 7 is using model L298 motor drive ic U9, and it can be by PWM
Signal control motor M speed governing, it has high, safe small volume, reliability, strong antijamming capability, peripheral circuit is simple, drive
Kinetic force is larger or can direct-driving motor M work.
As fig 5d, the concrete operating principle of motor drive module 7 is that motor drive ic U9 is controlled by microcontroller U1
System, motor drive ic U9 IN1 driving input pins (Motor1) connect microcontroller U1 P2.6 mouths (Motor1), and IN2 drives
Dynamic input pin (Motor2) connects microcontroller U1 P2.7 mouths (Motor2)；
As IN1=1, IN2=0, motor drive ic U9 receives MOTOR1=1, MOTOR2=0, and motor M starts just
Turn；
As IN1=0, IN2=1, motor drive ic U9 receives MOTOR1=0, MOTOR2=1, and motor M starts instead
Turn；
As IN1=0, IN2=0, motor drive ic U9 receives MOTOR1=0, MOTOR2=0, and motor stops turning
It is dynamic.
As shown in Fig. 3 j, houselights control module 8 is divided into two parts, and a part is used to control the preceding bank light in classroom,
Another part is used to control remaining lamp in classroom, and described two parts are connected with microcontroller U1.
As shown in figure 3k, the display module 9 is using model LCD1602 liquid crystal display U2, itself and microcontroller
During U1 connections, centre is using exclusion RP1, and the liquid crystal display U2 is used to show real-time temperature, intensity of illumination and time, allows
People readily understands the ambient conditions in classroom.The liquid crystal display U2 of the present invention has small volume, low in energy consumption and display operation
Simple the characteristics of.Liquid crystal display U2 has 16 pins, and its function is respectively：1 pin (Vss)：5V power supplys/ground；2 pin (VDD)：
Positive pole；3 pin (VEE)：Liquid crystal display bias voltage signal；4 pin (RS)：Data-/ command selects end；5 pin (R/W)：Read/write selects end；6
Pin (E)：Enable Pin；7~14 pin (D0~D7)：FPDP 0~7；15 pin A：Backlight positive pole；16 pin K：LED-OV.
As shown in fig. 6, the present invention also provides a kind of multi-media classroom light control method, in the case of projecting apparatus is started,
If outdoor light is too strong, curtain is closed, and front-seat light is closed, and heel row light is opened；If outdoor light is moderate, curtain is closed
Close, front-seat light is closed；If outdoor light is excessively dark, curtain is remained stationary as, and front-seat light is closed, and heel row light is opened.When not
In the case of projecting apparatus or closing projecting apparatus：If outdoor light is too strong, curtain is adjusted to appropriate location；If outdoor optical
Line is moderate, and curtain is remained stationary as, and all light are closed；If outdoor light is excessively dark, curtain is remained stationary as, and all light are opened.
Light in the present invention is moderate to refer to light intensity in range of set value, and excessively bright refer to that light intensity is more than and set
Definite value, it is excessively dark then to refer to that light intensity is less than setting value.The setting value can be set according to actual conditions, that can be clearly apparent
Blackboard and blackboard it is non-reflective, it is not dazzling premised on.
The multi-media classroom light control method, including：
Step 1：After system initialization, the temperature in detection multi-media classroom, the inside and outside light intensity in classroom, and read access time number
Value；
Step 2：Judge whether the projecting apparatus in multi-media classroom enables, if projecting apparatus is enabled, into step 3A, if
Projecting apparatus not enabled then enters step 3B；
Step 3A：One-chip computer module judges indoor light intensity according to the information that receives, and to motor drive module,
Houselights control module and display module send instruction；
Step 3B：One-chip computer module judges outdoor light intensity according to the information that receives, and to motor drive module,
Houselights control module and display module send instruction；
Step 4：Motor drive module and houselights control module adjust curtain and lamp according to the instruction of one-chip computer module
Light；The display module shows time, the light intensity in multi-media classroom and temperature.
Specifically, if to be less than motor M in setting value, step 4 motionless for indoor light intensity in step 3A, many matchmakers are closed
Bank light after preceding bank light corresponding with projecting apparatus screen, opening in body classroom；
If the indoor light intensity in step 3A is in setting value or more than setting value, motor drives mould in step 4
Block motor M closes curtain, closes bank light after preceding bank light corresponding with projecting apparatus screen in multi-media classroom, opening.
Fig. 6 is continued referring to, the step 3B includes：One-chip computer module judges outdoor light according to the information received
Intensity；If outdoor light intensity is less than setting value, one-chip computer module sends instruction, makes the motionless light standard-sized sheet of curtain；
If outdoor intensity of light is in setting value, one-chip computer module determines whether the light intensity of interior, and to electricity
Machine drive module, houselights control module and display module send instruction；If the indoor light that one-chip computer module judges is strong
Degree is less than setting value, then one-chip computer module sends instruction unpack curtain, light Close All；If indoor light intensity is in setting value
In the range of, then one-chip computer module, which sends instruction, makes curtain motionless, light Close All.
If outdoor intensity of light is more than preset value, one-chip computer module determines whether the light intensity of interior, and to motor
Drive module, houselights control module and display module send instruction, if the indoor light intensity that one-chip computer module judges
Less than setting value, then one-chip computer module sends instruction unpack curtain, and lamp is fully closed；If the indoor light intensity that one-chip computer module judges
When in setting value, then one-chip computer module, which sends instruction, makes curtain motionless, light Close All；If the room that one-chip computer module judges
When interior light intensity is more than setting value, then one-chip computer module sends instruction and closes curtain, light Close All.
The present invention is designed on the basis of the handling characteristics of existing multi-media classroom are analyzed, it is contemplated that display is set
The synthesis of standby, curtain and lighting apparatus is used, and three is jointly controlled, and good ring is not only provided to teaching process
Border, the effect for also having energy-conserving and environment-protective.Different from existing domestic intelligent curtain, present invention uses indoor and outdoor two light
Intensity sensor, can preferably carry out beam intensity ratio compared with, make optimum operation, more can energy-conserving and environment-protective.For current most smart windows
Curtain only relies on the situation that position switch is controlled to shade position, and the present invention combines upper and lower two position switch and AD is real-time
Detection, can not only reduce the use of position switch, curtain can also be adjusted in real time in position, be not solely restricted to completely
Open, completely close, opening the limited position such as half.Therefore, multi-media classroom lighting control system can be according to display device
Service condition automatically adjusts to religion indoor light, while also by temporal information, temperature and illumination numerical value by showing mould
Block is shown.When using projector equipment, light can be solved well causes by force very much that multimedia projection is reflective, unsharp ask
Topic, is reduced under manual control mode, it is necessary to which teacher or student go rising or falling for curtain of control and beating for houselights
Open or close and close brought influence, efficiency of teaching is improved well；, can be according to light intensity number when without using display device
Value is controlled to lighting apparatus and curtain, not only allows teaching process to have good environment, also there is the effect of energy-conserving and environment-protective.
It should be noted that the part component and its annexation in the accompanying drawing of the application are conventional arrangement, herein not
Give and repeating.The annexation of each component is not limited to shown in accompanying drawing in the application, can reach the component of the application purpose
And its annexation is within the protection domain of the application.
Obviously, those skilled in the art can carry out the spirit of various changes and modification without departing from the present invention to invention
And scope.So, if these modifications and variations of the present invention belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to including these changes and modification.
Claims (5)
1. a kind of multi-media classroom light control method, it is characterised in that comprise the following steps：
Step 1：After system initialization, the temperature in temperature detecting module, photosensitive module and clock module detection multi-media classroom,
The inside and outside light intensity in classroom, and read access time numerical value；
Step 2：Judge whether the projecting apparatus in multi-media classroom enables, if projecting apparatus is enabled, into step 3A, if projection
Instrument not enabled then enters step 3B；
Step 3A：One-chip computer module judges indoor light intensity according to the information that receives, and to motor drive module, illumination
Lighting control module and display module send instruction, into step 4；
Step 3B：One-chip computer module judges outdoor light intensity according to the information that receives, and to motor drive module, illumination
Lighting control module and display module send instruction；
Step 4：Motor drive module and houselights control module adjust curtain and light according to the instruction of one-chip computer module；
The display module shows time, the light intensity in multi-media classroom and temperature；
Wherein,
Temperature detecting module, for measuring the temperature in multi-media classroom；
Photosensitive module, the photosensitive module uses illuminance sensor, the light intensity inside and outside for detecting multi-media classroom；
Shade position detection module, the open position for detecting curtain, the shade position detection module non-is connect using two groups
Touch switches, are carried out upper and lower spacing to curtain respectively；
Clock module, for providing the time for system, and with timing function；
One-chip computer module, is connected with multimedia on-off circuit, for receiving photosensitive module, shade position detection module, clock mould
The information of block and multimedia on-off circuit, and instructed according to the delivering received, the one-chip computer module takes monolithic
Machine minimum system, including：Model STC89C52 microcontroller, reset circuit and clock oscillation；
Motor drive module, the motor drive module uses model L298 motor drive ic, according to one-chip computer module
Order-driven motor, and then adjust shade position, the motor use stepper motor or DC speed-reducing；
Houselights control module, beats according to multiple light in the instruction control multi-media classroom of one-chip computer module and opens or closes
Close；
And
Display module, for showing time, the inside and outside light intensity of multi-media classroom and temperature.
2. multi-media classroom light control method as claimed in claim 1, it is characterised in that
If the motor that the indoor light intensity in step 3A is less than motor drive module in setting value, step 4 is motionless, close many
Bank light after preceding bank light corresponding with projecting apparatus screen in Media Classroom, opening；
If the indoor light intensity in step 3A is equal to setting value or more than setting value, motor drive module drives in step 4
Dynamic motor closes curtain, closes bank light after preceding bank light corresponding with projecting apparatus screen in multi-media classroom, opening.
3. multi-media classroom light control method as claimed in claim 1, it is characterised in that step 3B includes：
One-chip computer module judges outdoor light intensity according to the information received；
If outdoor light intensity is less than setting value, one-chip computer module sends instruction, makes the motionless light standard-sized sheet of curtain；
If outdoor intensity of light is equal to setting value, one-chip computer module determines whether the light intensity of interior, and is driven to motor
Dynamic model block, houselights control module and display module send instruction；
If outdoor intensity of light is more than setting value, one-chip computer module determines whether the light intensity of interior, and is driven to motor
Module, houselights control module and display module send instruction.
4. multi-media classroom light control method as claimed in claim 3, it is characterised in that in step 3B, outside light light intensity
When degree is in setting value,
If the indoor light intensity that one-chip computer module judges is less than setting value, one-chip computer module sends instruction unpack curtain, lamp
Light Close All；
If indoor light intensity is equal to setting value, one-chip computer module, which sends instruction, makes curtain motionless, light Close All.
5. multi-media classroom light control method as claimed in claim 3, it is characterised in that in step 3B, outside light light intensity
When degree is more than setting value,
If the indoor light intensity that one-chip computer module judges is less than setting value, one-chip computer module sends instruction unpack curtain, lamp
It is fully closed；
If the indoor light intensity that one-chip computer module judges is equal to setting value, one-chip computer module, which sends instruction, makes curtain not
It is dynamic, light Close All；
If the indoor light intensity that one-chip computer module judges is more than setting value, one-chip computer module sends instruction and closes curtain,
Light Close All.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410708553.2A CN104481386B (en) | 2014-11-27 | 2014-11-27 | Multi-media classroom lighting control system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708553.2A CN104481386B (en) | 2014-11-27 | 2014-11-27 | Multi-media classroom lighting control system and method |
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| CN104481386A CN104481386A (en) | 2015-04-01 |
| CN104481386B true CN104481386B (en) | 2017-09-22 |
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| CN107567153B (en) * | 2017-10-31 | 2024-03-29 | 广东工业大学 | System and method for adjusting indoor light |
| CN107969057A (en) * | 2017-12-21 | 2018-04-27 | 北京邮电大学 | Indoor light control method and device |
| CN109164843A (en) * | 2018-08-24 | 2019-01-08 | 重庆昊磐节能科技股份有限公司 | A kind of indoor light and environmental Kuznets Curves adjusting method |
| CN109874202B (en) * | 2018-12-29 | 2021-02-02 | 中国计量大学 | Integrated classroom scene type self-adaptive lighting system for kindergarten, control device and control method |
| CN111738597A (en) * | 2020-06-22 | 2020-10-02 | 西南石油大学 | Teaching management system and method for multimedia classroom |
| CN114428440B (en) * | 2022-02-28 | 2024-04-30 | 歌尔股份有限公司 | Projector system adjusting method, projector system adjusting device, electronic equipment and readable storage medium |
| CN116822031B (en) * | 2023-08-29 | 2023-11-17 | 江苏钛科圈物联网科技有限公司 | Lighting design method and system based on classroom three-dimensional model layout |
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| CN101847023B (en) * | 2010-06-12 | 2013-05-08 | 北京富通永泰国际贸易有限公司 | Method and device for controlling indoor light |
| WO2013140292A2 (en) * | 2012-03-20 | 2013-09-26 | Koninklijke Philips N.V. | A method for controlling blind slat angle and height of a single motor blind |
| CN203206548U (en) * | 2013-04-21 | 2013-09-18 | 郭沛霖 | Multimedia classroom light modulation system |
| CN203482465U (en) * | 2013-09-26 | 2014-03-12 | 刘秀菊 | Intelligent illumination control system for work places |
| CN203558023U (en) * | 2013-10-11 | 2014-04-23 | 李晨阳 | Vehicular curtain automatic control device |
| CN204311959U (en) * | 2014-11-27 | 2015-05-06 | 苏州经贸职业技术学院 | Multi-media classroom lighting control system |
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