CN103032800A - LED illumination system for classroom - Google Patents
LED illumination system for classroom Download PDFInfo
- Publication number
- CN103032800A CN103032800A CN2013100043731A CN201310004373A CN103032800A CN 103032800 A CN103032800 A CN 103032800A CN 2013100043731 A CN2013100043731 A CN 2013100043731A CN 201310004373 A CN201310004373 A CN 201310004373A CN 103032800 A CN103032800 A CN 103032800A
- Authority
- CN
- China
- Prior art keywords
- emitting device
- classroom
- led
- light
- led light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005286 illumination Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000003860 storage Methods 0.000 claims description 33
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 4
- 230000004438 eyesight Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000001795 light effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004379 myopia Effects 0.000 description 2
- 208000001491 myopia Diseases 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004436 pseudomyopia Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
Images
Abstract
The invention discloses an LED (Light-emitting Diode) illumination system for a classroom. The LED illumination system comprises a high-contrast blackboard and an LED lamp, wherein the high-contrast blackboard comprises a writing layer, a long afterglow material layer and a reflective material layer; the LED illumination system comprises an AC (Alternating Current)/DC (Direct Current) conversion power supply, an automatic control unit, a charging relay, a rechargeable accumulator, a supply relay and a low-voltage LED light-emitting device. With adoption of the LED illumination system for the classroom, disclosed by the invention, the contrast of the blackboard in the classroom, as well as the illumination effect in the classroom, is increased on one hand, and the energy consumption of classroom illumination is reduced on the other hand.
Description
Technical field
The present invention relates to a kind of teaching equipment, particularly a kind of classroom illumination system.
Background technology
Along with country continues to increase the input of education, education is more paid attention to, and student's eyesight is in continuous decline, the student is often worried for can't see the demonstration blackboard, have to put on one's glasses in advance, allow the student have to change very soon true myopia into from pseudo-myopia, and then affect fitness-for-all.
Traced it to its cause three:
The first, light and shallow for the differ writing that causes chalk to write out thereon of the smooth degree of blackboard itself;
The second, the nonhomogeneous hardness of chalk is larger, the word that the chalk that hardness is higher writes out is light and shallow, the pen that the chalk that hardness is lower writes out is thick and dark, the word that in addition writes with chalk has dust pollution, physical and mental health to teachers and students has certain infringement, and impact of ambient light etc. is many-sided former thereby cause in addition in addition.
The 3rd: what present stage, all schools used all is fluorescent lamp lighting, and the light source characteristic of fluorescent lamp is light source discontinuous and flicker, and just naked eyes are differentiated not out.Thus teen-age eyesight being brought larger impact, also is the principal element that causes myopia multiple.Be necessary to design a kind of novel blackboard and classroom illumination system to overcome the above problems.
Be used for a kind of classroom LED illuminator of teaching in view of above former thereby invention, the characteristics of this classroom LED illuminator exchange conversion electric power, automatic control circuit, LED light-emitting device, battery, long after glow luminous material for adopting.
Summary of the invention
The object of the invention is to overcome existing above-mentioned deficiency in the prior art, a kind of classroom LED illuminator is provided.To realize following goal of the invention: one, improve the contrast of blackboard in the classroom and improve illuminating effect in the classroom.Two, reduce the energy consumption of classroom illumination.In order to realize the foregoing invention purpose, the invention provides following technical scheme:
A kind of classroom LED illuminator, described a kind of classroom LED illuminator comprises high-contrast blackboard and LED illuminating lamp;
Described high-contrast blackboard comprises writing layer, long-afterglow material layer and the reflective material layer that sets gradually from outside to inside;
Described LED illuminating lamp comprises: ac-dc switching power, automatic control unit, charge relay, chargeable storage, supply relay and LED light-emitting device;
The LED light-emitting device be separately positioned on the high-contrast blackboard around or the back side or classroom in the top in order to illumination to be provided;
Wherein, chargeable storage is connected with the ac-dc switching power output by charge relay, and be connected with LED light-emitting device shunt circuit by supply relay, the LED light-emitting device also is connected with ac-dc switching power, and automatic control unit is connected with ac-dc switching power, charge relay and supply relay;
Wherein, ac-dc switching power is used for the alternating current of input is converted to direct current, automatic control unit is used for the work of control charge relay, supply relay, the LED light-emitting device both can be by ac-dc switching power work, also can be by supply relay work under the power supply of chargeable storage, when the electric weight of charging accumulator is crossed when low, can connect ac-dc switching power and be its charging by charge relay by the control of automatic control unit.
Wherein, in the high-contrast blackboard, writing layer is used for using the writing implement with high-contrast blackboard coupling to write thereon; The long-afterglow material layer is used for absorbing light and luminous; The contrast that reflective material layer is used for playing soft light effect and increases blackboard.High-contrast blackboard of the present invention, the font visible contrast of writing under any light condition is high, and no dust pollution; In the situation that have a power failure, can do the emergency lighting at night, and safe escape illumination during something unexpected happened at night.
The LED light-emitting device is identical with luminous flux in the situation of civil power, and power consumption saves 50-75% than fluorescent lamp, saves 90% than incandescent lamp.When automatic control unit detected without civil power, battery-supply relay was connected, and powers to the LED light-emitting device by the one-way conduction diode, is supplied the power supply of LED light-emitting device by chargeable storage.When chargeable storage was full of electricity, the capable for LED illuminating lamp used 5-24 hours, and the operating power size of service time and LED light-emitting device is inversely proportional to, and power is short large its service time, and power is just long little service time.
LED light-emitting device or employing anury power supply mode allow the LED light-emitting device directly be installed to desk, take full advantage of light source and energy-saving effect to reach.
Pass through technique scheme, the LED illuminating lamp both can enter work by the incoming transport civil power, also can carry out work by the chargeable storage that carries, can be accessed by simultaneously solar cell or wind energy power supply in place with good conditionsi, under the control of automatic control unit, when the brownout of charging accumulator, be its charging by automatically connecting ac-dc switching power by charge relay both.
The positive pole of all the LED lamps among the LED light-emitting device respectively with the coupling of the positive pole of described chargeable storage, charge relay, supply relay, ac-dc switching power, negative pole respectively with the negative pole coupling of described chargeable storage, charge relay, supply relay, ac-dc switching power.
Described LED illuminating lamp also comprises AC switch constant-current source controller, and described AC switch constant-current source controller is connected to the downstream of ac-dc switching power and is used for regulating electric current and the voltage of ac-dc switching power output.
The light source of described LED light-emitting device adopts LED or OLED, and the standard household light source interface is all adopted in LED, oled light source.
Described ac-dc switching power also comprises flow measurement resistance, and described flow measurement resistance and the coupling of described LED light-emitting device are used for measuring the electric current of the described LED light-emitting device of flowing through.
Described ac-dc switching power adopts the AC Switching Power Supply.
Described LED light-emitting device comprises light emitting diode and current-limiting resistance parallel with one another more than one or series connection.
Described a kind of classroom LED illuminating lamp also comprises solar cell or wind energy power supply, described solar cell or wind energy power supply after being converted to direct current or directly access low-voltage dc power supply and with the coupling of described LED light-emitting device.
The positive pole coupling of the positive pole of described LED light-emitting device and described solar cell or wind energy power supply, the negative pole coupling of the negative pole of described LED light-emitting device and described solar cell or wind energy power supply.
The material that described long-afterglow material layer adopts is fluorescent material, rare-earth luminescent material.
The writing implement that described high-contrast blackboard coupling adopts the luminous writing material of high-contrast to make.
Be used for a kind of classroom LED illuminator of teaching in view of above former thereby invention, the font visible contrast of writing under any light condition is high, and no dust pollution; In the situation that have a power failure, can do the emergency lighting at night, and safe escape illumination during something unexpected happened at night.
The LED light-emitting device is identical with luminous flux in the situation of civil power, and power consumption saves 50-75% than fluorescent lamp, saves 90% than incandescent lamp.When automatic control unit detected without civil power, battery-supply relay was connected, and powers to the LED light-emitting device by the one-way conduction diode, is supplied the power supply of LED light-emitting device by chargeable storage.When chargeable storage was full of electricity, the capable for LED light-emitting device used 5-24 hours, and be directly proportional with the watt level that the LED light-emitting device is worked simultaneously service time, and power is short large its service time, and power is just long little service time.
A kind of means of illumination of high-contrast blackboard comprises the steps, the first step: light spreads into the long-afterglow material layer from writing layer, and the long-afterglow material layer stores light; Second step: a part of light reflects to strengthen the soften of high-contrast blackboard glazed thread by reflector layer; The 3rd step: when outage or night, power the long-afterglow material layer is provided light source and the high-contrast blackboard is thrown light on for the LED light-emitting device by chargeable storage; The 4th step, when outage or during night, in the situation that be not equipped with chargeable storage, long-afterglow material is luminous so that the high-contrast blackboard is thrown light on.
Compared with prior art, beneficial effect of the present invention:
One, improved the contrast of blackboard in the classroom and improved the illuminating effect in the classroom.
Two, reduced the energy consumption of classroom illumination.
Three, the LED light-emitting device adopts standard interface, can reduce the use of power line, avoids the available circuit structural damage, reduces user's initial cost, thereby saves and reduce the use amount of non-ferrous metal.
Four, low pressure centrally connected power supply can significantly reduce the manufacture difficulty of LED light-emitting device, process simplification, and the use amount of significantly cutting down electrolytic aluminium, plastics etc. reduces raw-material consumption.
Five. adopt the LED light-emitting device to comprise to throw light on and to the background light filling of high-contrast blackboard; Because it is only continuous that light source sends, thereby played the effect of vision protection.
Description of drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is structural representation of the present invention.
Mark among the figure: 1-ac-dc switching power, 2-charge relay, 3-chargeable storage, 4-supply relay, 5-automatic control unit, 6-LED light-emitting device, 7-writing layer, 8-long-afterglow material layer, 9-reflective material layer.
The specific embodiment
The present invention is described in further detail below in conjunction with test example and the specific embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology that realizes based on content of the present invention all belong to scope of the present invention.
A kind of classroom LED illuminator, this service system can comprise the subsystem of one or more parallel connections, and has numerous embodiments;
A kind of classroom LED illuminator, described a kind of classroom LED illuminator comprises high-contrast blackboard and LED illuminating lamp;
As shown in Figure 1, described high-contrast blackboard comprises writing layer 7, long-afterglow material layer 8 and the reflective material layer 9 that sets gradually from outside to inside;
As shown in Figure 2, described LED illuminating lamp comprises: ac-dc switching power 1, automatic control unit 5, charge relay 2, chargeable storage 3, supply relay 4 and LED light-emitting device 6;
The LED light-emitting device be separately positioned on the high-contrast blackboard around or the back side or classroom in the top in order to illumination to be provided;
Wherein, chargeable storage is connected with the ac-dc switching power output by charge relay, and be connected with LED light-emitting device shunt circuit by supply relay, the LED light-emitting device also is connected with ac-dc switching power, and automatic control unit is connected with ac-dc switching power, charge relay and supply relay;
Wherein, in the high-contrast blackboard, writing layer is used for using the writing implement with high-contrast blackboard coupling to write thereon; The long-afterglow material layer is used for absorbing light and luminous; The contrast that reflective material layer is used for playing soft light effect and increases blackboard.High-contrast blackboard of the present invention, the font visible contrast of writing under any light condition is high, and no dust pollution; In the situation that have a power failure, can do the emergency lighting at night, and safe escape illumination during something unexpected happened at night.
Wherein, ac-dc switching power is used for the alternating current of input is converted to direct current, automatic control unit is used for the work of control charge relay, supply relay, the LED light-emitting device both can be by ac-dc switching power work, also can be by supply relay work under the power supply of chargeable storage, when the electric weight of charging accumulator is crossed when low, can connect ac-dc switching power and be its charging by charge relay by the control of automatic control unit.
Wherein, the positive pole coupling of the positive pole of LED light-emitting device and automatic control unit and ac-dc switching power, charge relay and supply relay, solar cell etc., the negative pole coupling of the negative pole of LED light-emitting device and automatic control unit and ac-dc switching power, charge relay and supply relay, solar cell etc.The ac-dc switching power of alternating current 150-264V civil power by Switching Power Supply is converted to 12VDC voltage and powers to the work of LED light-emitting device by the one-way conduction diode, the LED illuminating lamp is identical with luminous flux in the situation of civil power, power consumption saves 50-75% than fluorescent lamp, saves 90% than incandescent lamp.When automatic control unit detected without civil power, battery-supply relay was connected, and powers to the LED light-emitting device by the one-way conduction diode, and the power supply of LED light-emitting device is provided by chargeable storage.When chargeable storage was full of electricity, the capable for LED light-emitting device used 5-24 hours, and the operating power size of service time and LED light-emitting device is inversely proportional to, and power is short large its service time, and power is just long little service time.
LED light-emitting device or employing anury power supply mode allow the LED light-emitting device directly be installed to desk, take full advantage of light source and energy-saving effect to reach.
Automatic control unit adopts special-purpose software control.Automatic control unit detects the voltage of chargeable storage, and when detecting voltage and be lower than 11V, ac-dc switching power charges to chargeable storage by charge relay.Automatic control unit detects the working condition of LED light-emitting device by the size of current of passing through that detects power of alterating and direct current, when the load of LED light-emitting device not overrate 50% the time, then allow charge relay to connect, charge to chargeable storage.In order to guarantee security of system work, the power source charges condition can arrange.
Automatic control unit also detects simultaneously by the electric current of ac-dc switching power to chargeable storage charging, when charging current greater than specified charging current 150% the time, charge relay disconnects, and stops charging; Delay time and connected again charge relay in 10 seconds, battery is continued charging, impaired such as battery, repair simultaneously impaired battery.When detect charging current less than specified charging current 5% or accumulative total charging interval surpass or reach 8 hours, then the automatic disconnection charge relay stops to charge in batteries.
As using solar recharging, solar cell charges to chargeable storage by the one-way conduction diode, is powered to the LED light-emitting device by supply relay by chargeable storage again.Save the medium voltage conversion links, to raise the efficiency.Directly to the power supply of LED light-emitting device, guarantee that the voltage of chargeable storage is relatively stable by chargeable storage, and then guarantee the working stability of LED light-emitting device.
The power of ac-dc switching power is according to the capacity of chargeable storage and the power determination of LED light-emitting device.
The high-contrast blackboard utilizes the propagation characteristic of light, characteristic in conjunction with the novel transferring material of a kind of macromolecule and long-afterglow fluorescent luminescent material, realization will showing the writing high-contrast that writes on the blackboard, allow the people see very easily, and the LED light-emitting device is combined with long-afterglow material layer fluorescence luminescent material; Guaranteed the continuity of light, flicker free, and then reach the effect of vision protection;
Simultaneously the long-afterglow fluorescent luminescent material can be used as low light level illumination at night, the long-afterglow fluorescent luminescent material after receiving certain hour light, powered-down or light source; The storage light characteristic of long-afterglow fluorescent luminescent material, when external light source was lower than the light luminance of long-afterglow fluorescent luminescent material, the long-afterglow fluorescent luminescent material was the limited light source of sustained release about ten hours, luminous intensity in time increase progressively gradually decay.
Although the specific embodiment of the present invention is illustrated and illustrates, but be not that meaning characterizes all possible forms of the invention with the diagram of above-mentioned embodiment and explanation, more definite, used word is illustrative but not determinate in the specification, and can understand, can carry out many changes and not deviate from the spirit and scope of the present invention the present invention.
Claims (10)
1. a classroom LED illuminator is characterized in that, described classroom LED illuminator comprises high-contrast blackboard and LED illuminating lamp;
Described high-contrast blackboard comprises writing layer, long-afterglow material layer and the reflective material layer that sets gradually from outside to inside;
Described LED illuminating lamp comprises: ac-dc switching power, automatic control unit, charge relay, chargeable storage, supply relay and LED light-emitting device;
The LED light-emitting device be separately positioned on the high-contrast blackboard around or the back side or classroom in the top in order to illumination to be provided;
Wherein, chargeable storage is connected with the ac-dc switching power output by charge relay, and be connected with LED light-emitting device shunt circuit by supply relay, the LED light-emitting device also is connected with ac-dc switching power, and automatic control unit is connected with ac-dc switching power, charge relay and supply relay;
Wherein, ac-dc switching power is used for the alternating current of input is converted to direct current, automatic control unit is used for the work of control charge relay, supply relay, the LED light-emitting device both can be by ac-dc switching power work, also can be by supply relay work under the power supply of chargeable storage, when the electric weight of charging accumulator is crossed when low, can connect ac-dc switching power and be its charging by charge relay by the control of automatic control unit.
2. a kind of classroom as claimed in claim 1 LED illuminator, it is characterized in that, described a kind of classroom LED illuminating lamp also comprises AC switch constant-current source controller, and described AC switch constant-current source controller is connected to the downstream of ac-dc switching power and is used for regulating electric current and the voltage of ac-dc switching power output.
3. a kind of classroom as claimed in claim 1 LED illuminator is characterized in that, the light source of described LED light-emitting device adopts LED or OLED.
4. a kind of classroom as claimed in claim 1 LED illuminator is characterized in that, described ac-dc switching power also comprises flow measurement resistance, and described flow measurement resistance and the coupling of described LED light-emitting device are used for measuring the electric current of the described LED light-emitting device of flowing through.
5. a kind of classroom as claimed in claim 1 LED illuminator is characterized in that, described ac-dc switching power adopts the AC Switching Power Supply.
6. such as claim 1 or 3 described a kind of classroom LED illuminators, it is characterized in that, described LED light-emitting device comprises light emitting diode and current-limiting resistance parallel with one another more than one or series connection.
7. a kind of classroom as claimed in claim 1 LED illuminator, it is characterized in that, described LED illuminating lamp also comprises solar cell or wind energy power supply, described solar cell or wind energy power supply after being converted to direct current or directly access low-voltage dc power supply and with the coupling of described LED light-emitting device.
8. a kind of classroom as claimed in claim 7 LED illuminator, it is characterized in that, the positive pole coupling of the positive pole of described LED light-emitting device and described solar-electricity battery or wind energy power supply, the negative pole coupling of the negative pole of described LED light-emitting device and described solar cell or wind energy power supply.
9. a kind of classroom as claimed in claim 1 LED illuminator is characterized in that, the material that described long-afterglow material layer adopts is fluorescent material.
10. the means of illumination of a high-contrast blackboard is characterized in that, comprises the steps the first step: light spreads into the long-afterglow material layer from writing layer, and the long-afterglow material layer stores light; Second step: a part of light reflects to strengthen the soften of high-contrast blackboard glazed thread by reflector layer; The 3rd step: when outage or night, power the long-afterglow material layer is provided light source and the high-contrast blackboard is thrown light on for the LED light-emitting device by chargeable storage; The 4th step, when outage or during night, in the situation that be not equipped with chargeable storage, long-afterglow material is luminous so that the high-contrast blackboard is thrown light on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004373.1A CN103032800B (en) | 2013-01-07 | 2013-01-07 | A kind of LED illumination system for classroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004373.1A CN103032800B (en) | 2013-01-07 | 2013-01-07 | A kind of LED illumination system for classroom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103032800A true CN103032800A (en) | 2013-04-10 |
| CN103032800B CN103032800B (en) | 2015-08-19 |
Family
ID=48019992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310004373.1A Active CN103032800B (en) | 2013-01-07 | 2013-01-07 | A kind of LED illumination system for classroom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103032800B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476486A (en) * | 2016-12-16 | 2017-03-08 | 朱虹斐 | Can global flag blackboard |
| CN112519454A (en) * | 2020-12-07 | 2021-03-19 | 河北华发教育科技股份有限公司 | Data acquisition type multifunctional intelligent blackboard |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020050985A1 (en) * | 1999-01-29 | 2002-05-02 | Kenichi Takekawa | Method and device for inputting coordinate-position and a display board system |
| CN201344442Y (en) * | 2008-12-17 | 2009-11-11 | 郑兴林 | Illumination system with electricity-storage LED |
| CN201385507Y (en) * | 2009-04-27 | 2010-01-20 | 何东光 | Wordpad for teaching |
| CN201390059Y (en) * | 2009-04-08 | 2010-01-27 | 宫永洁 | Dust-free vision-aid blackboard |
| CN102142711A (en) * | 2011-03-25 | 2011-08-03 | 姚志恩 | Control system of wind driven generator |
-
2013
- 2013-01-07 CN CN201310004373.1A patent/CN103032800B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020050985A1 (en) * | 1999-01-29 | 2002-05-02 | Kenichi Takekawa | Method and device for inputting coordinate-position and a display board system |
| CN201344442Y (en) * | 2008-12-17 | 2009-11-11 | 郑兴林 | Illumination system with electricity-storage LED |
| CN201390059Y (en) * | 2009-04-08 | 2010-01-27 | 宫永洁 | Dust-free vision-aid blackboard |
| CN201385507Y (en) * | 2009-04-27 | 2010-01-20 | 何东光 | Wordpad for teaching |
| CN102142711A (en) * | 2011-03-25 | 2011-08-03 | 姚志恩 | Control system of wind driven generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476486A (en) * | 2016-12-16 | 2017-03-08 | 朱虹斐 | Can global flag blackboard |
| CN112519454A (en) * | 2020-12-07 | 2021-03-19 | 河北华发教育科技股份有限公司 | Data acquisition type multifunctional intelligent blackboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103032800B (en) | 2015-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102438353B (en) | Control circuit of double-light-source intelligent control type illumination lamp | |
| CN204901616U (en) | Intelligence solar energy LED lamp | |
| CN103032800B (en) | A kind of LED illumination system for classroom | |
| CN203024023U (en) | Schoolroom LED (Light Emitting Diode) illuminating system | |
| CN201803268U (en) | Multifunctional LED lamp | |
| CN202158477U (en) | LED (Light-Emitting Diode) lamp with storage battery | |
| CN201968038U (en) | Solar emergency kit | |
| CN202150978U (en) | Emergency illuminating lamp | |
| CN201827696U (en) | Emergency energy-saving lamp | |
| CN201330988Y (en) | Solar multipurpose lamp | |
| CN204795725U (en) | Solar energy corridor lamp control system based on singlechip | |
| CN202915227U (en) | Mining low-power-consumption emergency LED (Light-Emitting Diode) lighting device | |
| CN202132851U (en) | Indoor LED illuminating lamp | |
| CN203027569U (en) | Household low-voltage energy-saving LED (Light Emitting Diode) illumination system | |
| CN202276491U (en) | Solar energy/mains supply complementary charging type flashlight circuit | |
| CN204442750U (en) | A kind ofly integrate emergent and the LED of inductive lightning function | |
| CN203336255U (en) | Novel portable outdoor lamp | |
| CN202857058U (en) | LED safety desk lamp | |
| CN203893052U (en) | LED (Light Emitting Diode) solar table lamp | |
| CN201344442Y (en) | Illumination system with electricity-storage LED | |
| CN201983086U (en) | School emergency lighting system | |
| CN202818693U (en) | Solar environmental protection intelligent pedestrian lamp | |
| CN205491367U (en) | Illumination stand -by power supply of school | |
| CN206272907U (en) | A kind of photovoltaic illumination LED controller | |
| CN201407630Y (en) | General-purpose mobile phone holder charging and illuminating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Feng Haiyan Inventor before: Zhang Xudong |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170315 Address after: Pingdingshan City, Henan province 467000 Zhanhe District Road No. 15 Building No. 25 Zhanhe Patentee after: Feng Haiyan Address before: 610045 Wuhou District, Chengdu province fruit Weir Street, No. 12 7-1-8 Patentee before: Zhang Xudong |
|
| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cao Jing Inventor after: Pan Weijuan Inventor before: Feng Haiyan |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170818 Address after: 463711 Henan city of Jiaozuo province Biyang County Water Town Center School Co-patentee after: Pan Weijuan Patentee after: Cao Jing Address before: Pingdingshan City, Henan province 467000 Zhanhe District Road No. 15 Building No. 25 Zhanhe Patentee before: Feng Haiyan |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181206 Address after: 401120 Jinxianglin 17 Building-1-2, 25 Kaige Second Branch Road, Huixing Street, Yubei District, Chongqing Patentee after: Chongqing Moyan Technology Co., Ltd. Address before: 463711 Chunshui Town Central School, Biyang County, Jiaozuo City, Henan Province Co-patentee before: Pan Weijuan Patentee before: Cao Jing |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20201125 Address after: Building 9 and 10, No. 33, Xinkang Road, Nantong City, Jiangsu Province, 226000 Patentee after: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS INSTITUTE AT NANTONG Co.,Ltd. Address before: 401120 Jinxianglin 17 Building-1-2, 25 Kaige Second Branch Road, Huixing Street, Yubei District, Chongqing Patentee before: Chongqing Moyan Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |