CN110062494A - A kind of classroom LED lamp Healthy Lighting light decay is warned device - Google Patents
A kind of classroom LED lamp Healthy Lighting light decay is warned device Download PDFInfo
- Publication number
- CN110062494A CN110062494A CN201910237207.3A CN201910237207A CN110062494A CN 110062494 A CN110062494 A CN 110062494A CN 201910237207 A CN201910237207 A CN 201910237207A CN 110062494 A CN110062494 A CN 110062494A
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- lamps
- lanterns
- control unit
- lamp
- indicator
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
Abstract
It warns device the present invention relates to a kind of classroom LED lamp Healthy Lighting light decay, each illuminance transducer is connected to corresponding zigbee wireless sending module and is mounted in same corresponding lamps and lanterns in the device, and when the distance between illuminance transducer and lamp luminescence face are with factory testing is identical；Control unit connect with zigbee wireless receiving module, LCD MODULE and indicator lamp groups respectively and is fully integrated on liquid crystal display panel；The actually detected brightness value of illuminance transducer acquisition sends control unit by wireless transmission method, and as lamps and lanterns luminous flux sustainment rate η < 70%, LCD MODULE identifies pattern of warning accordingly；When desk surface illumination works as E in classroomaWhen < 300lx, corresponding indicator light is highlighted.The present invention prompt user's lamps and lanterns can be needed to be serviced or be replaced when lamps and lanterns luminous flux sustainment rate is lower than 70% or desk top illumination is lower than the minimal illumination value of national standard.
Description
Technical field:
The invention belongs to lighting technical field, it is related to a kind of light decay and warns device, it is strong to particularly relate to a kind of classroom LED lamp
Kang Zhaoming light decay is warned device.
Background technique:
During routine use, most users only work as lamps and lanterns and obviously dimmed be unable to satisfy normally occur illuminator
Visual task demand can just select in the case where can not lighting to replace or safeguard lamps and lanterns.It is specified that ordinary user lacks detection lamps and lanterns
Effective convenient method of service life limit value causes very big shadow to visual performance so often missing the best period of replacement lamps and lanterns
It rings.
National health health committee data show that China's adolescent myopia disease incidence has surmounted other countries, are in generation
Boundary first, the situation is tense.The illuminator that tradition classroom uses at present can not in real time, precisely provide any lamps and lanterns luminous flux and maintain
Rate can not position, judge, safeguard or replace bad lamps and lanterns in time to meet the visual demand of student, to extend student non-
The time of living and studying in health lighting (especially desktop illumination) increases eye sense tired out, ultimately causes the generation of myopia
With the reduction of learning efficiency.
Summary of the invention:
It warns device the technical problem to be solved in the present invention is to provide a kind of classroom LED lamp Healthy Lighting light decay, the dress
Set detect lamps and lanterns luminous flux sustainment rate lower than 70% or desk top illumination be lower than national standard minimal illumination value when, can
Prompt user maintenance replaces the lamps and lanterns.
In order to solve the above-mentioned technical problem, classroom LED lamp Healthy Lighting light decay of the invention warns device including controlling
Unit, n illuminance transducer, n zigbee wireless sending module, zigbee wireless receiving module, LCD MODULE, instruction
Lamp group；Wherein n is the quantity for teaching indoor LED lamps；Each illuminance transducer is connected simultaneously with corresponding zigbee wireless sending module
It is mounted in same corresponding lamps and lanterns, and the distance between illuminance transducer and lamp luminescence face D1It is shone when equal to lamps and lanterns factory testing
Spend the distance between sensor and lamp luminescence face D3；The control unit respectively with zigbee wireless receiving module, liquid crystal
Display module and indicator lamp groups connection, and control unit, zigbee wireless receiving module, LCD MODULE and indicator lamp groups
It is integrated on liquid crystal display panel；It include display mark corresponding with each lamps and lanterns on the LCD MODULE；Indicator lamp groups
Including No. 3 indicator lights；The actually detected brightness value of illuminance transducer acquisition by corresponding zigbee wireless sending module and
Zigbee wireless receiving module is sent to control unit, if lamps and lanterns factory testing brightness value is E0, actually detected brightness value is Ec,
Luminous flux sustainment rate η=Ec/E0；For any lamps and lanterns, as actually detected brightness value Ec≥0.7E0When, control unit controls liquid crystal
The corresponding display mark display luminous flux sustainment rate η of display module；As actually detected brightness value Ec<0.7E0When, control unit control
LCD MODULE processed identifies pattern of warning accordingly；Meanwhile control unit calculates desk table in classroom according to formula (1)
Face illumination Ea；
K1It is proportionality coefficient,K2For fixed coefficient, K2=0.55~0.6；
Work as EaWhen < 300lx, control unit controls No. 3 indicator lights and is highlighted.
Selection switch, driving unit, relay group are also equipped on the liquid crystal display panel；Control unit respectively with
Selection switch, driving unit connection；Control unit controls relay by driving unit according to the switch selection signal of selection switch
The corresponding actuating of relay lights corresponding a line lamps and lanterns in device group.
The indicator lamp groups further include No. 1 indicator light；When a line lamps and lanterns are lighted, if the practical inspection of all lamps and lanterns of the row
Survey brightness value Ec>=0.7E0When, then control unit controls No. 1 indicator light and is highlighted.
The indicator lamp groups further include No. 2 indicator lights；When a line lamps and lanterns are lighted, if the reality of at least one lamps and lanterns of the row
Detect brightness value E in borderc<0.7E0When, then control unit controls No. 2 indicator lights and is highlighted.
Power switch is also equipped on the liquid crystal display panel.
The illuminance transducer is mounted on the frame of lamps and lanterns.
The illuminance transducer can also be mounted on telescopic rod；Telescopic rod and lamps and lanterns frame are hinged；Rotation is flexible
Telescopic rod can be such that illuminance transducer is stored in the groove of lamps and lanterns frame, also adjustable illuminance transducer and lamp luminescence face
Distance.
The present invention is embedded in illuminance transducer in lamps and lanterns, the illuminance information of real-time detection light-emitting surface, and using zigbee without
Line technology transfers information to liquid crystal display panel, can observe the luminous flux in lamp luminescence face in real time by LCD MODULE
Sustainment rate information.As lamps and lanterns are increased using the time, when lamps and lanterns luminous flux sustainment rate is lower than 70% or desk top illumination is lower than state
When marking desired minimal illumination value (300lx), corresponding display mark display " WARNING " pattern of LCD MODULE is warned,
Prompt user's lamps and lanterns are needed to be serviced or are replaced.
Detailed description of the invention:
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is structural block diagram of the invention.
Fig. 2 a is illuminance transducer schematic view of the mounting position；Fig. 2 b is the portion the A partial enlarged view of Fig. 2 a.
Fig. 3 is light decay alarm function flow chart of the invention.
Fig. 4 is indicator light and key works flow chart.
Fig. 5 is liquid crystal display panel schematic diagram.
Fig. 6 is that flat lamp illumination in classroom simulates schematic diagram.
Specific embodiment:
The following examples are only intended to illustrate the technical solution of the present invention more clearly, and cannot be used as a limitation the limitation present invention
Protection scope.
Classroom layer is high in school, depending on gas capacity, daylight uniformity, the ratio in room and the visual effect in space and
The factors such as economy.For example, primary school's classroom clear height is 3.1 meters, classroom clear height is 3.4 meters, height of table top 750 ± 10mm, a
There is not a small amount of error in area.
By taking no daylight conditions as an example, the light mixing between lamps and lanterns quantity and lamps and lanterns, intersection light filling are used in classroom
Deng, analog simulation can be carried out using DIALux software before lamp installation, calculate in the classroom in use lamps and lanterns quantity and
Arrangement mode.According to the pertinent regulations of existing relevant national standard " standard for lighting design of buildings " GB 50034, in different classrooms
The value of lighting power density and corresponding brightness value it is as shown in table 1.
Table 1
In lamps and lanterns use process, the illuminance information of the automatic real-time testing lamps and lanterns of illuminance transducer in lamps and lanterns.Illumination sensing
For device apart from 5~10cm of lamp luminescence surface, what it is according to brightness value and distance square is in inversely prroportional relationship formula, lamp luminescence identity distance
It is 1.7~2.0 meters or so with a distance from the desk surface of classroom.
As shown in Figure 1, classroom LED lamp Healthy Lighting light decay of the invention is warned, device includes control unit, n illumination
Sensor 3, n zigbee wireless sending module, zigbee wireless receiving module, LCD MODULE, indicator lamp groups, selection are opened
It closes, driving unit, relay group, power switch.
As shown in Fig. 2 a, Fig. 2 b, by taking flat lamp as an example, each illuminance transducer 3 can be fixedly mounted on corresponding lamps and lanterns 1
On frame 11, and away from lamp luminescence identity distance from D1=5~10cm can detecte the illumination away from lamp luminescence face 5~10cm distance
Value；Each illuminance transducer 3 also may be mounted on telescopic rod 4, and as shown in Figure 2 b, the frame 11 of telescopic rod 4 and lamps and lanterns is hinged, can
It rotates and flexible, durings lamps and lanterns packaging, transport, installation etc., illuminance transducer 3 and telescopic rod 4 are stored in groove 2；?
Illuminance transducer 3 can be adjusted when use by telescopic rod 4 at a distance from lamp luminescence face.
The zigbee wireless sending module is fixed on the frame 11 of lamps and lanterns 1 and connect with illuminance transducer.
The illuminance transducer measurement range that the present invention selects is 0.045lx~188000lx (can shoot the sun light), and illumination passes
The collected illuminance information of sensor is digital signal (hexadecimal).Illuminance transducer is furnished with MCU element, and MCU and sensor are logical
Cross I2C bus mode carries out data transmission, and MUC calibrates the digital signal that illuminance transducer acquires, and obtained numerical value is i.e.
For actually detected brightness value.MCU and zigbee wireless sending module is attached by cable mode, MCU eventually by
Actually detected brightness value is sent to control unit and carries out data by zigbee wireless sending module and zigbee wireless receiving module
Processing.
The control unit, zigbee wireless receiving module, LCD MODULE, selection switch, driving unit, relay
Device group, indicator lamp groups and power switch are integrated on liquid crystal display panel.
The control unit uses single-chip microcontroller, realizes data acquisition, data processing, data storage and sends the function such as instruction
Energy.Implementation is as follows: single-chip microcontroller acquires each actually detected brightness value in lamp luminescence face of zigbee wireless receiving module transmission
EcAnd luminous flux sustainment rate η and desk surface illumination E is calculated by presetting operation relationa, the luminous flux that will be calculated
Sustainment rate η and desk surface illumination EaIt is compared with scheduled standard value, command adapted thereto is sent to liquid crystal according to comparison result
Display module and indicator lamp groups realize alarm function.Single-chip microcontroller is connect with selection switch and driving unit simultaneously, is selected by manipulation
Switch is selected, the exportable driving signal of single-chip microcontroller lights a line lamps and lanterns by driving unit and relay group selection.
The method that the single-chip microcontroller handles data is specific as follows:
Calculate lamps and lanterns luminous flux sustainment rate η, η=Ec/E0；EcThe actually detected brightness value detected for illuminance transducer 3；E0
For lamps and lanterns factory testing brightness value；The distance between illuminance transducer 3 and lamp luminescence face D1It is shone when equal to lamps and lanterns factory testing
Spend the distance between sensor and lamp luminescence face D3；D1When=0.05m, E0For 280~320klx；D1When=0.1m, E0It is 70
~80klx；
Desk surface illumination E in classroom is calculated according to formula (1), (2)a；
K1It is proportionality coefficient,K2For fixed coefficient, K2=0.55~0.6.
As the actually detected brightness value E of illuminance transducerc<0.7E0When, determine that the lamp life terminates, and pass through liquid crystal
Show that module identifies warn pattern " WARNING " accordingly, while single-chip microcontroller output signal No. 2 indicator lights of control are highlighted aobvious
Show, reminds user's replacement problem lamps and lanterns；
As the actually detected brightness value E of illuminance transducerc≥0.7E0When, determine that lamps and lanterns are in normal life cycle, leads to
It crosses LCD MODULE and identifies display luminous flux sustainment rate η accordingly, while controlling No. 1 indicator light and being highlighted；
Work as EaWhen < 300lx, determine that desk surface illumination is lower than requirements of the national standard in classroom, controls No. 3 indicator light height
Bright display, warning user remind user should replacement problem lamp immediately note that illuminance of lamp has begun influence student eyesight at this time
Tool；
Work as EaWhen >=300lx, determine that desk surface illumination complies with the national standard requirements in classroom.
As shown in figure 3, figure 4 and figure 5, teach the workflow of indoor lamp light decay alarm function as follows:
In liquid crystal display panel, when pattern of warning " WARNING " 101 is highlighted, illustrate the corresponding lamps and lanterns in the position
Luminous flux sustainment rate η starts less than 70%, according to lamps and lanterns latest national standards GB/T 24823-2017 " general lighting LED mould
Block performance requirement " relevant regulations, judge the lamp life terminate, need to change lamps and lanterns." 70% " mark 102 indicates that lamps and lanterns light is logical
Measuring sustainment rate η is 70%, belongs to critical value whether lamp life terminates." 90% " mark 103 is expressed as lamps and lanterns luminous flux dimension
Holdup η is 90%.Remaining numerical identity meaning is similar.Indicate that religion Interior Illumination Environment is non-hazardous when No. 1 indicator light 104 highlights.No. 2
The national standard for having lamps and lanterns lux maintenance η to be lower than 70% in classroom is indicated when indicator light 105 highlights, which terminates,
It is recommended that user's replacement problem lamps and lanterns.Desk surface illumination E in classroom is indicated when No. 3 indicator lights 106 highlightaIt is wanted lower than national standard
It asks, for warning user note that illuminance of lamp has begun influence student eyesight at this time, user should replacement problem lamps and lanterns immediately.Selection
Switch 107 and power switch 108 are used to teach the switch control of indoor lamp, and when pressing 1 selection switch 107, " R8 " can be shown
At " R1 ", illustrate that power switch 108 can individually control the first row lamps and lanterns and light and turn off, and so on, it can be controlled separately 4
The independent open and close of portable lighter tool.When there are when problem, select switch 107 to can be used for positioning failure lamps and lanterns place for religion indoor lamp
Row, play the role of facilitating user to debug.
When that will realize that single-chip microcontroller exports high level signal when lighting full line lamp control function, realized by relay
The function of vulnerabilities scan forceful electric power can directly control full line lamps and lanterns constant-current source and connect alternating current 220V (AC), it may be assumed that light lamps and lanterns function.1
The backlight of number indicator light 106 of indicator light 105,3 of indicator light 104,2 and power switch 108 is realized using single LED.
Above-described embodiment should not necessarily be limited to protection scope of the present invention, and lamp type is not limited to flat lamp, further include linear
Lamp, strip light, Projecting Lamp, downlight, shot-light etc..
Claims (7)
- The device 1. a kind of classroom LED lamp Healthy Lighting light decay is warned, it is characterised in that including control unit, n illumination sensing Device (3), n zigbee wireless sending module, zigbee wireless receiving module, LCD MODULE, indicator lamp groups；Wherein n is Teach the quantity of indoor LED lamps；Each illuminance transducer (3) is connected and is mounted on same with corresponding zigbee wireless sending module In corresponding lamps and lanterns, and the distance between illuminance transducer (3) and lamp luminescence face D1Illumination senses when equal to lamps and lanterns factory testing The distance between device and lamp luminescence face D3；The control unit respectively with zigbee wireless receiving module, liquid crystal display mode Block and indicator lamp groups connection, and control unit, zigbee wireless receiving module, LCD MODULE and indicator lamp groups are integrated in On liquid crystal display panel；It include display mark corresponding with each lamps and lanterns on the LCD MODULE；Indicator lamp groups include No. 3 Indicator light (106)；The actually detected brightness value of illuminance transducer (3) acquisition by corresponding zigbee wireless sending module and Zigbee wireless receiving module is sent to control unit, if lamps and lanterns factory testing brightness value is E0, actually detected brightness value is Ec, Luminous flux sustainment rate η=Ec/E0；For any lamps and lanterns, as actually detected brightness value Ec≥0.7E0When, control unit controls liquid crystal The corresponding display mark display luminous flux sustainment rate η of display module；As actually detected brightness value Ec<0.7E0When, control unit control LCD MODULE processed identifies pattern of warning accordingly；Meanwhile control unit calculates desk table in classroom according to formula (1) Face illumination Ea；K1It is proportionality coefficient,K2For fixed coefficient, K2=0.55~0.6；Work as EaWhen < 300lx, control unit controls No. 3 indicator lights (106) and is highlighted.
- The device 2. LED lamp Healthy Lighting light decay in classroom according to claim 1 is warned, it is characterised in that the liquid crystal Selection switch, driving unit, relay group are also equipped on display panel；Control unit respectively with selection switch, driving unit Connection；Control unit controls corresponding relay in relay group by driving unit according to the switch selection signal of selection switch Device movement lights corresponding a line lamps and lanterns.
- The device 3. LED lamp Healthy Lighting light decay in classroom according to claim 1 is warned, it is characterised in that the instruction Lamp group further includes No. 1 indicator light (104)；When a line lamps and lanterns are lighted, if the actually detected brightness value E of all lamps and lanterns of the rowc? ≥0.7E0When, then control unit controls No. 1 indicator light (104) and is highlighted.
- The device 4. LED lamp Healthy Lighting light decay in classroom according to claim 1 is warned, it is characterised in that the instruction Lamp group further includes No. 2 indicator lights (105)；When a line lamps and lanterns are lighted, if the actually detected brightness value of at least one lamps and lanterns of the row Ec<0.7E0When, then control unit controls No. 2 indicator lights (105) and is highlighted.
- The device 5. LED lamp Healthy Lighting light decay in classroom according to claim 1 is warned, it is characterised in that the liquid crystal Power switch is also equipped on display panel.
- The device 6. LED lamp Healthy Lighting light decay in classroom according to claim 1 is warned, it is characterised in that the illumination Sensor (3) is mounted on the frame of lamps and lanterns.
- The device 7. LED lamp Healthy Lighting light decay in classroom according to claim 1 is warned, it is characterised in that the illumination Sensor (3) is mounted on telescopic rod (4)；Telescopic rod (4) and lamps and lanterns frame (11) are hinged；Rotation or flexible telescopic rod (4) can It is stored in illuminance transducer (3) in the groove (2) of lamps and lanterns frame (11), also adjustable illuminance transducer (3) and lamps and lanterns are sent out The distance of smooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237207.3A CN110062494B (en) | 2019-03-27 | 2019-03-27 | Classroom LED lamp healthy illumination light attenuation warning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237207.3A CN110062494B (en) | 2019-03-27 | 2019-03-27 | Classroom LED lamp healthy illumination light attenuation warning device |
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| Publication Number | Publication Date |
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| CN110062494A true CN110062494A (en) | 2019-07-26 |
| CN110062494B CN110062494B (en) | 2021-11-16 |
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|---|---|---|---|
| CN201910237207.3A Active CN110062494B (en) | 2019-03-27 | 2019-03-27 | Classroom LED lamp healthy illumination light attenuation warning device |
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Cited By (3)
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| CN112861704A (en) * | 2021-02-04 | 2021-05-28 | 开望(杭州)科技有限公司 | Children writing analysis system and method based on sensor analysis and image processing |
| CN116017829A (en) * | 2022-12-30 | 2023-04-25 | 亚翔系统集成科技（苏州）股份有限公司 | Dust-free room lamp service life monitoring method |
| CN116030743A (en) * | 2023-03-30 | 2023-04-28 | 合肥市航嘉显示科技有限公司 | LED display and brightness adjustment detection structure thereof |
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