CN206775794U - Intelligent classroom lighting system - Google Patents

Abstract

The utility model discloses a kind of intelligent classroom lighting system, statistical module of the intelligent classroom lighting system including the number in control module, detection classroom, the luminance detection module of light intensity, the clock module that timing section is set and multiple rows of LED being set up in parallel in detection classroom, the control module is connected with the demographics module, luminance detection module, clock module and the LED respectively, wherein, LED described in the control module intelligent control switchs by row.Intelligent classroom lighting system provided by the utility model considers three religion indoor illumination, number, time parameters simultaneously, and to meet intelligent control of the realization to classroom illumination that impose a condition of three parameters, multifactor control can be with the use of reasonable distribution LED.

Description

Intelligent classroom lighting system

Technical field

It the utility model is related to intelligent lighting technical field, and in particular to a kind of intelligent classroom lighting system.

Background technology

With the development of social economy and science and technology, the living standard of people improves constantly, and power load constantly aggravates, Simultaneously because global energy crisis, the energy, which lacks, turns into the Tough questions that the world is faced, thus energy-saving and emission-reduction into For focus instantly, wherein electric consumption on lighting occupies the very big proportion that the mankind consume the energy, especially educational undertaking electricity consumption more It is severe.As country also gradually expands therewith to the attention of education and the growth of number of student scale, campus scale, classroom Lighting demand is also more and more.

What current most of school all carried out is opening management mode, in the very high situation of indoor illuminance level on daytime Under, the classroom still more phenomenon of the normal bright light of generally existing；Even if it is sometimes feelings of the classroom number rareness even without student Under condition, the phenomenon that all lamps are all opened in classroom is also to happen occasionally, and these phenomenons largely waste electric power Resource, aggravate energy shortage.

In order to solve the problems, such as waste of energy, the improved procedure of illuminating energy-saving has a lot, such as common are：Administrative staff's hand Dynamic control, sound control type light fixture, solar energy lamp etc., but some shortcomings each be present in these modes.Administrative staff control manually Limitation to personnel is larger, troublesome in poeration, if classroom can at most lose time to consume energy.Sound control type light fixture often easily goes out Existing inaccurate phenomenon, is easily influenceed by external factor.Solar energy lamp up-front investment is big, and easily strong by illumination The influence of degree, indoor place are not suitable for using.So there is an urgent need to novel energy-conserving scheme for present in the market.

Utility model content

The purpose of this utility model is to provide a kind of intelligent classroom lighting system, for solving existing classroom illumination side The problem of waste energy that formula is brought because the control effect to light fixture is bad.

To achieve these goals, the utility model provides following technical scheme：A kind of intelligent classroom lighting system, it is wrapped Include control module, the statistical module of occupancy is taught in detection, the luminance detection module of light intensity, setting timing in detection classroom The clock module in section and multiple rows of LED being set up in parallel, the control module respectively with the demographics module, illumination Detection module, clock module and the LED are connected, wherein, LED described in the control module intelligent control is opened by row Close.

Preferably, the control module includes microprocessor and the crystal oscillator being connected respectively with microprocessor electricity Road, reset circuit and exclusion.

Preferably, the microprocessor is STC89C52 single chip.

Preferably, the statistical module is infrared tube or infrared human body heat releasing electric transducer.

Preferably, the infrared tube includes the infrared receiving tube and infrared transmitting tube for being respectively arranged on classroom door both sides.

Preferably, the luminance detection module is photo resistance.

Preferably, the clock module is DS1302 real time clock circuits.

Preferably, the intelligent classroom lighting system also includes the LCD MODULE being connected with the control module, The LCD MODULE is used to show the number in classroom.

Preferably, the LCD MODULE is LCD1602 LCDs.

Preferably, the intelligent illuminating system also includes the one key switching module being connected with the control module, described One key switching module is used for the automatic pattern switching that the LED switchs by row to manual mode.

Compared to prior art, intelligent classroom lighting system described in the utility model has the advantage that：

First, intelligent classroom lighting system provided by the utility model considers religion indoor illumination, number, time three simultaneously Parameter, to meet intelligent control of the realization to classroom illumination that impose a condition of three parameters, multifactor control can be with reasonable distribution The use of LED, the phenomenon that lamp is also opened when bright light is more, light is strong when lamp is bright when avoiding nobody, people is few, can also effectively consider Daily schedule, by the way of switching by row can effective use of energy sources, reduce waste of energy；

2nd, intelligent classroom lighting system provided by the utility model can be realized automatic mutually compatible with manual control, more Intelligent hommization, it can be adjusted accordingly according to service condition.

Brief description of the drawings

By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to this practicality New limitation.In the accompanying drawings：

Fig. 1 shows a kind of structural frames of the intelligent classroom lighting system of preferred embodiment provided by the utility model Figure；

Fig. 2 shows the circuit diagram of Fig. 1 intelligent classroom lighting systems；

Fig. 3 shows the circuit diagram of statistical module in Fig. 1；

Fig. 4 shows the circuit diagram of luminance detection module in Fig. 1；

Fig. 5 shows the circuit diagram of clock module in Fig. 1；

Fig. 6 shows the circuit diagram of LCD MODULE in Fig. 1；

Fig. 7 shows the circuit diagram of one key switching module in Fig. 1；

Fig. 8 shows the main program flow chart of Fig. 1 intelligent classroom lighting systems.

Description of reference numerals

1- intelligent classroom lighting systems, 11- control modules,

12- statistical modules, 13- luminance detection modules,

14- clock modules, 15-LED lamps,

16- LCD MODULEs, 17- one key switching modules.

Embodiment

The utility model provides many applicable creative concepts, and the creative concept can be reflected in a large number of specifically Context in.Specific embodiment described in following embodiments of the present utility model is only used as tool of the present utility model The exemplary illustration of body embodiment, without forming the limitation to the scope of the utility model.

The utility model will be further described with specific embodiment below in conjunction with the accompanying drawings.

As shown in figure 1, the present embodiment provides a kind of intelligent classroom lighting system 1, the intelligent classroom lighting system 1 includes Control module 11, detection teach the statistical module 12 of occupancy, detect the luminance detection module 13 of light intensity in classroom, set The clock module 14 in timing section, the multiple rows of LED 15 being set up in parallel, LCD MODULE 16 and one key switching module 17, The control module 11 respectively with the demographics module 12, luminance detection module 13, clock module 14, the LED 15, LCD MODULE 16 and one key switching module 17 are connected.

The control module 11 switchs by row for LED 15 described in intelligent control.

As shown in Fig. 2 the control module 11 is single-chip minimum system, it include microprocessor and respectively with institute Crystal oscillating circuit, reset circuit and exclusion that microprocessor is connected are stated, the crystal oscillating circuit is connected with the reset circuit.

U2 is the microprocessor, preferably STC89C52 single chip in Fig. 2.STC89C52 single chip is a kind of CMOS 8 Microprocessor, it contains the read-only storage of 8KB programmable erasing function.The device has more advantage, wherein Including：Can be downloaded by serial ports, 40 pins, reading speed is fast, cheap, burning is convenient, can also realize online programming, adopt ATMEL high density nonvolatile storages manufacturing technology of receiving manufactures.

Crystal oscillating circuit is used for ensureing SCM system normal work.If hunting operation may cause to perform journey Sequence system time mistake, it is clear and definite that it, which will reflect in communication,：Circuit will be unable to link up.Its vibration and two potteries including crystal Porcelain condenser, the necessary grounding connection of two ceramic capacitors is to the end.Parallel resonance is typically in the crystal oscillator work of single-chip microcomputer State, parallel resonance state are a parts for resonant capacitance, and it is to provide crystal vibration load according to the requirement manufacturer of crystal Capacitance selects, that is to say, that the value that it is measured under the load capacitance of offer, this is the frequency of crystal, it may ensure that most The frequency values of big error, also ensure that temperature drift errors etc..What the value of two electric capacity was just as, if difference is very Greatly, the imbalance of resonance is easily caused, also easily causes failure of oscillation or clear-cut not starting of oscillation.Crystal oscillating circuit can more steadily with coordination Keep its pulse, here function as the effect shaken to an association in parallel.

Reset circuit is equivalent to the work of Security Personnel, and the system of being to ensure that can be stablized, reliable power circuit.In rigid connection In the case of logical, for the electric capacity of reset circuit of SCM without electricity, the resistance in electric capacity is also very low at this moment, is connecting 5V electricity After source, power supply can be by resistance electrochemical capacitor, so as to be started to charge up to electric capacity, within this very short time, with the usual time Compared to less than 0.3 second, the electricity at electric capacity both ends can gradually rise from 0V, until rising to 4V or so, therefore, the voltage of resetting pin from The low potential of beginning is raised to high potential, causes the connection of single-chip microcomputer internal circuit, and working result is completed so as to obtain reset circuit； After the selection key of reset is pressed, electric capacity both ends start to discharge its internal electricity, when electric capacity is returned to 0V, reset Circuit also completes again it and resets work.

Exclusion, i.e. network resistor (Wire-wound Resistor).Exclusion is by the identical electricity of several parameters Resistance concentration is packaged together, made of combination.Their pin is all connected to together, as common pin.Remaining pin is just Often draw.Using exclusion ratio with some fixed resistances are more convenient, packing density is high.

The statistical module 12 is used to detect the number in classroom, and first parameter, root are provided for the control module 11 The number control range that can be accommodated according to classroom.The statistical module 12 is infrared tube or infrared human body heat releasing fax sense Device.

As shown in figure 3, in the present embodiment, the statistical module 12 is realized by infrared tube to count, specifically, institute Infrared receiving tube and infrared transmitting tube that infrared tube includes being respectively arranged on classroom door both sides are stated, quantity is two groups.Infrared receiver Pipe is the semiconductor devices for the infrared ray light for coming from infrared transmitting tube for sensing of making a special trip to a certain place, reception, and effect is by infrared ray Optical signal be changed into electric signal；Infrared transmitting tube belongs to diode-like.It is into luminous by infraluminescence diode rectangle Body, PN junction is made with infrared radiant material, by exciting infrared light to PN junction forward bias Injection Current.

Infrared receiving tube receives the light of infrared transmitting tube transmitting, when someone passes through, shuts out the light, infrared receiving tube connects Light is can not receive, represents that someone passes through.When detecting that light is blocked successively with the infrared receiving tube in door outdoors, mean that Someone enters classroom.

LM339 is operational amplifier in Fig. 3, and conduct voltage comparator here uses, and the 4th pin is V-, and the 5th pin is V+, 2nd pin is output.As input voltage V+>During V-, high level is exported, as input voltage V+<During V-, low level is exported.

LED7 and LED6 is infrared receiving tube, and LED8 and LED9 are infrared transmitting tube, R21 and R22 current-limiting protection transmitting tubes, R12 and R13 is the pull-up resistor of receiving terminal, in order to obtain high level.When blocking, infrared light is sent out by shelter Penetrate and received by reception pipe, reception pipe conducting ground connection, now voltage less than+input 2.5V ,+<-, comparator exports low electricity Flat, LED light is bright；Thing does not block, and this when, reception pipe did not turned on, and voltage is greater than 2.5V, so+>-, High level is exported, LED light is gone out.The control module 11 determines that whether someone passes through by the height of decision level.

The luminance detection module 13 is used to detect the light intensity in classroom, and second is provided for the control module 11 Parameter, preferably photo resistance.When photo resistance senses light change, signal is transmitted at the control module 11 Manage, then the light on and off of the LED 15 are controlled by the control module 11.Photo resistance is also known as photoconductive tube, conventional making material For cadmium sulfide, the also material such as selenium, aluminium sulfide, vulcanized lead and bismuth sulfide in addition.

As shown in figure 4, the operation principle of photo resistance is to be based on inner photoeffect.Photosensitive material at semi-conducting electrode both ends Material, the transparent window of encapsulating package form photo resistance, and in order to increase sensitiveness, two electrodes often make pectination.Illumination is stronger, resistance Value is lower.Incident light disappears, and the value of photo resistance will recover original value.LIGHT1 is photo resistance, under bright state, photosensitive electricity The resistance of resistance is smaller, and the voltage assigned to is low, and now 4 pin voltages are less than the 2.5V of 5 pin voltages, and the pin of comparator 2 exports high level, LED D4 is defined as dark display lamp, and dark display lamp extinguishes；Under dark state, the resistance of photo resistance is larger, the electricity assigned to Pressure is high, and voltage is greater than 2.5V, so+<-, low level is exported, dark display lamp is lighted, and the control module 11 is by sentencing Flat height is powered off to determine to belong to dark state or bright state.

As shown in figure 5, the clock module 14 is used to set timing section, the usage time of the LED 15 is controlled, is The control module 11 provides the 3rd parameter.Preferably DS1302 real time clock circuits.DS1302 real time clock circuits have Trickle current charging ability, using serial data transmission, it be able to can also be provided for power-down protection circuit with charge closing function The characteristics of programmable charge function.It is a kind of real time clock circuit with RAM, is mainly characterized by performance height, low in energy consumption. DS1302 real time clock circuits co-exist in 12 registers, wherein there is 7 registers related to calendar, clock in 12 registers Connection, and the data bit deposited exists in the form of binary-coded decimal.In the pin arrangements of DS1302 real time clock circuits, Vcc1 and Vcc2 Respectively back-up source and main power source.Even if main power source is closed, clock can also keep continuous operation in the presence of back-up source, DS1302 real time clock circuits generally select the side power supply of larger pair of voltage.

The LED 15 is multiple rows of to be set up in parallel, in the present embodiment, the LED 15 by rows, specifically, being 4 rows LED.The LED 15 includes two mode of operations, i.e. automatic mode and manual mode, under automatic mode, the LED 15 Opened or closed by the intelligent control of control module 11, under manual mode, carried out by the one key switching module 17 Pattern switching, by manually controlling the LED 15 to open or close.

As shown in fig. 6, the LCD MODULE 16 is used to show the number in classroom, certainly, the liquid crystal display mode Block 16 can be also used for showing date, time and week.The LCD MODULE is preferably LCD1602 LCDs. LCD1602 LCDs generally has the LCD of 14 lead-foot-lines or 16 lead-foot-lines, and additional 2 lines are backlight electric power lines VCC (15 pin) and ground wire GND (16 pin),

As shown in fig. 7, the one key switching module 17 is used for the automatic pattern switching that the LED switchs by row to hand Dynamic model formula.For the one key switching module 17 using free-standing button, free-standing button is the list directly formed with I/O mouth lines Individual key circuit.

As shown in figure 8, the intelligent control of the intelligent classroom lighting system 1 depends on three parameters：Teach occupancy, light Line bull bear position and timing section, in the present embodiment, classroom can accommodate 99 people；Weak light is then dark state, and light is strong It is then bright state；Timing section is 18 when 22.

During beginning, the control module 11 sends to the clock module 14 and asked, and the clock module 14 replys data And updated the data, then enter automatic mode or manual mode by setting real-time time process choosing.

In automatic mode, when real-time time in timing section (i.e. in the bound time range of setting), and teach Weak room light is dark state, when the statistical module 12 detects that someone enters classroom, after both having met 3 Parameter Conditions, The control module 11 opens corresponding LED according to the number detected：

Bright first bank light when number is no more than 10 people, bright preceding two rows of lights when 10-20 people, when increasing to First three bright bank light in the case of 20-30 people, the whole LED of selection unlatching when more than 30 people, when the liquid crystal When the number that display module 16 is shown is 99 people, now it is not recommended that there is student to enter classroom again；

When classroom light is by force bright state, then LED is closed；

When real-time time is not in timing section, then LED is closed.

Under manual mode, hand switch controls the opening and closing of the LED 15.

The utility model is limited it should be noted that above-described embodiment illustrates rather than to the utility model System, and those skilled in the art can design alternative embodiment without departing from the scope of the appended claims. In claim, any reference symbol between bracket should not be configured to limitations on claims.Word "comprising" Element or step not listed in the claims is not excluded the presence of.

Claims (10)

1. a kind of intelligent classroom lighting system, it is characterised in that it includes control module, the statistics mould of detection religion occupancy The luminance detection module of light intensity in block, detection classroom, clock module that timing section is set and multiple rows of it is set up in parallel LED, the control module respectively with the demographics module, luminance detection module, clock module and the LED phase Connection, wherein, LED described in the control module intelligent control switchs by row.

2. intelligent classroom lighting system according to claim 1, it is characterised in that the control module includes microprocessor The device and crystal oscillating circuit being connected respectively with the microprocessor, reset circuit and exclusion.

3. intelligent classroom lighting system according to claim 2, it is characterised in that the microprocessor is that STC89C52 is mono- Piece machine.

4. intelligent classroom lighting system according to claim 1, it is characterised in that the statistical module be infrared tube or Person's infrared human body heat releasing electric transducer.

5. intelligent classroom lighting system according to claim 4, it is characterised in that the infrared tube includes being respectively arranged on The infrared receiving tube and infrared transmitting tube of classroom door both sides.

6. intelligent classroom lighting system according to claim 1, it is characterised in that the luminance detection module is photosensitive electricity Resistance.

7. intelligent classroom lighting system according to claim 1, it is characterised in that the clock module is that DS1302 is real-time Clock circuit.

8. intelligent classroom lighting system according to claim 1, it is characterised in that the intelligent classroom lighting system is also wrapped The LCD MODULE being connected with the control module is included, the LCD MODULE is used to show the number in classroom.

9. intelligent classroom lighting system according to claim 8, it is characterised in that the LCD MODULE is LCD1602 LCDs.

10. intelligent classroom lighting system according to claim 1, it is characterised in that the intelligent illuminating system also includes The one key switching module being connected with the control module, the one key switching module are used for switch the LED by row Automatic pattern switching is to manual mode.