CN102261600A - Induction lighting lamp and induction lighting system - Google Patents
Induction lighting lamp and induction lighting system Download PDFInfo
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- CN102261600A CN102261600A CN2010101844606A CN201010184460A CN102261600A CN 102261600 A CN102261600 A CN 102261600A CN 2010101844606 A CN2010101844606 A CN 2010101844606A CN 201010184460 A CN201010184460 A CN 201010184460A CN 102261600 A CN102261600 A CN 102261600A
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Abstract
The invention discloses an induction lighting lamp, which comprises an induction control module, a switch module, a light source part, a power supply control module and a linkage terminal arranged between the switch module and the light source part, wherein the induction control module inducts an external signal to generate an induction signal; the switch module receives the induction signal and sends a turning-on signal to the light source part; the linkage terminal can be connected with the linkage terminals of other induction lighting lamps, so that when the turning-on signal passes, the turning-on signal can be transmitted to the linkage terminals of the other induction lighting lamps and further transmitted to the light source parts of the other induction lighting lamps; and the light source part is turned on when receiving the turning-on signal and turned off when not receiving the turning-on signal. The induction lighting lamp saves energy and has high brightness and long service life; and the lamps in a plurality of regions needing light can be linked only by mutually connecting the linkage terminals of the lamps, and complex operation and arrangement are avoided. The invention also discloses an induction lighting system employing the induction lighting lamp.
Description
Technical field
The present invention relates to a kind of inductive lightning light fixture and a kind of inductive lightning system that uses this inductive lightning light fixture, be specifically related to a kind of inductive lightning light fixture and inductive lightning system of the management that can link to the illumination in polylith zone.
Background technology
Along with improving constantly of quickening of urbanization process and living standards of the people, increasing large-scale public infrastructure and large-scale residential quarters or commercial center are built, how effective and energy-conservation management is rationally carried out in these heavy constructions group's illumination, just become more and more important problem.
Such as, large-scale residential quarters and commercial center all possess the underground parking usually, up to ten thousand square metres easily of these parking lot areas, and lack lamp.If adopt traditional lighting solutions, then or must monitor every field of illumination respectively, when being arranged, the turnover of people or car manually lights the light source in this zone separately; Must make all light sources in all field of illuminations long bright.Though last scheme is energy-conservation, careless mistake appears in difficult management easily; Though back one scheme illuminating effect is good, energy consumption is big, and very waste, and light fixture is lighted for a long time also and can be influenced its service life.
For solving the contradiction between above-mentioned two kinds of schemes,, adopted the inductive lightning scheme in some building in recent years in conjunction with the advantage of the two.Such as in the corridor of residential building, when being arranged through certain floor, the people sends sound of movement, received acoustic signals by sonic transducer, then this floor electric light is lighted automatically; When the people leaves this floor, then electric light extinguishes immediately.Though this method need not the people manually be opened illumination, and is very convenient, and energy-conservation, owing to the induction coverage of the sensor of being installed on every electric light is little, so can't be used for the illumination in broad zones such as parking lot.
On the other hand, for long and narrow zones such as the gateway of underground parking or tunnels, when vehicle through out-of-date, illumination before and after having only in the segment limit is lighted, and still be a slice dark at a distance, this can bring the feared state of mind to the driver, and can produce the illumination dead angle, very easily leak and see pedestrian or vehicle, cause the accident.Perhaps,,, its brightness is dimmed, thereby influence driver or pedestrian's sight line though the light source in the full wafer zone is all lighted in order to reduce illumination cost.
Summary of the invention
One of purpose of the present invention is to provide a kind of inductive lightning light fixture of the management that can link to the illumination in polylith zone.
To achieve the above object of the invention, the present invention has taked following technical scheme: a kind of inductive lightning light fixture, have: the induction control module, switch module, light source portion, give described induction control module, the power supply control module of described switch module and the power supply of described light source portion, and be arranged on interlock terminal between described switch module and the described light source portion, wherein, described induction control module generates an induced signal according to this outer signals when sensing outer signals, and the described induced signal that will generate reaches described switch module, described switch module is when receiving described induced signal, tie point via described interlock terminal, send a some modulating signal to described light source portion, when described induced signal disappears, described switch module stops to send described some modulating signal, described interlock terminal can be connected with the described interlock terminal of other inductive lightning light fixtures, make described some modulating signal the time through described tie point, can be passed to the described interlock terminal of other inductive lightning light fixtures, and then be passed to the described light source portion of other inductive lightning light fixtures, described light source portion is not extinguished when receiving described some modulating signal in that to receive described some modulating signal time point bright.
Further, described induction control module possesses sensor circuit, and this sensor circuit comprises sensor, and this sensor is infrared sensor or sonic transducer, and when described sensor was infrared sensor, described outer signals was the infrared radiation signal that human body is emitted; When described sensor was sonic transducer, described outer signals was an acoustic signals.
Further, described induction control module also possesses light-operated circuit, when described light-operated circuit is sensed extraneous brightness greater than a default brightness value, the induced signal output of described sensor circuit is blocked; When described light-operated circuit is sensed extraneous brightness less than a default brightness value, remove blockade to the induced signal output of described sensor circuit.
Further, described sensor circuit also has a delay circuit, makes described sensor circuit still to keep described induced signal in the certain hour after described outer signals disappears.
Further, described sensor circuit also comprises the control chip that links to each other with described sensor, this control chip comprises operational amplifier, be used to amplify the signal of described sensor output, be provided with misoperation at the output of described operational amplifier and prevent the loop, be used to prevent that described control chip from not receiving described outer signals mistiming at described sensor and generating described induced signal.
Further, described switch module comprises a FET or a constant current control chip.
Further, this inductive lightning light fixture also has the ground terminal that is connected with described switch module, this ground terminal can be connected with the described ground terminal of other inductive lightning light fixtures, thereby the described switch module that makes described inductive lightning light fixture and other inductive lightning light fixtures altogether.
Another object of the present invention is to provide a kind of inductive lightning system of the management that can link to the illumination in polylith zone.
To achieve the above object of the invention, the present invention has taked following technical scheme:
A kind of inductive lightning system, has plural number small cup inductive lightning light fixture, wherein, every described inductive lightning light fixture has: the induction control module, switch module, light source portion, give described induction control module, the power supply control module of described switch module and the power supply of described light source portion, and be arranged on interlock terminal between described switch module and the described light source portion, wherein, described induction control module generates an induced signal according to this outer signals when sensing outer signals, and the described induced signal that will generate reaches described switch module, described switch module is when receiving described induced signal, tie point via described interlock terminal, send a some modulating signal to described light source portion, when described induced signal disappears, described switch module stops to send described some modulating signal, each described interlock terminal of described plural number small cup inductive lightning light fixture interconnects, make the described interlock terminal of the described inductive lightning light fixture of wherein arbitrary small cup the described signal of lighting a lamp arranged through out-of-date, with this modulating signal via other interlock terminals that link to each other, be passed to the described light source portion of other inductive lightning light fixtures, described light source portion is not extinguished when receiving described some modulating signal in that to receive described some modulating signal time point bright.
Further, this inductive lightning system also has: an interlock control centre, this interlock control centre is connected with each described interlock terminal, and can send described some modulating signal to the described light source portion of each described inductive lightning light fixture via described interlock terminal.
Further, every described inductive lightning light fixture also has the ground terminal that is connected with described switch module, each described ground terminal of described plural number small cup inductive lightning light fixture interconnects, thereby the described switch module that makes each described inductive lightning light fixture altogether.
Have following advantage according to induction light fixture of the invention process and inductive lightning system:
1, adopt the induction type illumination, energy-conservation, brightness is high, the light fixture long service life.
2, only interconnect, just can allow the light fixture in the polylith zone that need throw light on realize interlock by interlock terminal with each light fixture, and need not complicated operations and setting.
3, in the interlock field of illumination, as long as there is the sensor of arbitrary light fixture to receive outer signals, all light fixtures in just can the zone are lighted simultaneously, the generation at the dead angle of having avoided throwing light on.Such as in the place of long and narrow dark such as tunnel, can simultaneously the whole piece tunnel be lighted, make the driver can not produce the feared state of mind, improved the security of driving.
Description of drawings
Fig. 1 is the module map of the inductive lightning system of embodiment 1;
Fig. 2 is the workflow diagram of the inductive lightning system of embodiment 1;
Fig. 3 is the module map of the inductive lightning system of embodiment 2;
Fig. 4 is the circuit diagram of an inductive lightning light fixture in the inductive lightning system of embodiment 2;
Wherein: 10,10a, 10b, 10c, inductive lightning light fixture; 11, light source portion; 12, power supply; 13, LED lamp; 20, induction control module; 24, sensor circuit; 25, delay circuit; 26, light-operated circuit; 27, DC voltage converting circuit; 28, misoperation prevents the loop; 30, power supply control module; 35, ac-dc converter circuit; 40, switch module; 60, inductive lightning system; 61, interlock terminal; 62, control centre; 63, ground terminal; 64, tie point.
The specific embodiment
Below in conjunction with specific embodiment, inductive lightning light fixture 10 of the present invention and inductive lightning system 60 are described further.Should be understood that following examples only are used to the present invention is described but not are used to limit scope of the present invention.
Embodiment 1:
Accompanying drawing 1 is the module map of the inductive lightning system of embodiment 1.
As shown in Figure 1, inductive lightning system 60 is made up of the inductive lightning light fixture 10 of many shared same power supplys 12, so that wherein 3 inductive lightning light fixture 10a, 10b, 10c are example.Every inductive lightning light fixture 10 includes power supply control module 30, induction control module 20, switch module 40, interlock terminal 61, ground terminal 63 and light source portion 11.
Wherein, power supply 12 is the civil power of AC220V.Power supply control module 30 is accepted the electric power of civil power, and is translated into the dc low-voltage electricity of 12V by an ac-dc converter circuit 35, then to induction control module 20, switch module 40 and light source portion 11 power supplies.
The effect of ground terminal 63 is with switch module 40 ground connection, and the ground terminal 63 of each inductive lightning light fixture 10 is interconnective in the system, thereby each switch module 40 that makes each inductive lightning light fixture 10 altogether.
Accompanying drawing 2 is the workflow diagram of the inductive lightning system 60 of embodiment 1.
As shown in Figure 2, inductive lightning light fixture 10a at first gives induction control module 20, switch module 40 and light source portion 11 power supply (step 1) by power supply control module 30 after startup.
After the energising, judge whether to receive from other continuous some modulating signals (step 2) of terminals 61 that link,, then skip to step 7 described later if received the some modulating signal by interlock terminal 61; If do not receive then flow process end of a modulating signal.
Simultaneously, judge that whether (step 3), if be blocked, then flow process finishes owing to the effect of light-operated circuit 26 is blocked for the output of sensor circuit 24.
If the output of sensor circuit 24 is not blocked, judge then whether sensor circuit 24 has sensed outer signals (step 4).
If sensor circuit 24 is sensed outer signals, then can generate an induced signal and be sent to switch module 40 (step 5).
The light source portion 11 of all inductive lightning light fixtures 10 all receives a modulating signal in the system, simultaneously luminous (step 7).
After light source portion 11 beginnings are luminous, will judge whether to continue to receive a modulating signal (step 8).If continue to receive a modulating signal, then light source portion 11 is lasting luminous, returns step 8; If light a lamp blackout, then light source portion is extinguished (step 9), flow process end.
Embodiment 2:
Accompanying drawing 3 is the module map of the inductive lightning system 60 of the embodiment of the invention 2.
As shown in Figure 3, identical with embodiment 1, every inductive lightning light fixture 10 among the embodiment 2 includes power supply control module 30, induction control module 20, switch module 40, interlock terminal 60 and light source portion 11.
And embodiment 2 has following difference with embodiment 1: the sensor circuit in the induction control module 20 has delay circuit 25 and misoperation prevents loop 28; The interlock terminal 61 of all inductive lightning light fixtures 10 also is connected with a control centre 62 except that interconnecting, thereby can unify to accept the control of control centre 62, manually lights light source portion 11 in all inductive lightning light fixtures 10 by operating personnel.
As shown in Figure 4, power supply control module 30 is subjected to civil power through N, L termination.The civil power of AC220V enters rectifier bridge through N, L end, and through big capacitor C 2 filtering, resistance R 6 provides cut-in voltage for power switch chip TNY280 again, TNY280 work.Resistance R 7, resistance R 8, resistance R ', capacitor C 4, diode D8, diode D9 be used to absorb the primary back-emf, protection TNY280.
Power switch chip TNY280 starts working, and then the civil power of A capacitor C 220V will be transformed into the constant voltage that is about 12V through ac-dc converter circuit 35, be delivered to circuit thereafter.Ac-dc converter circuit 35 is made up of following element: diode D11, R9, capacitor C 7 provide accessory power supply for TNY280; Diode D10, capacitor C 6, capacitor C 9, inductance L 1 are formed output filter circuit; Zener diode TL2, the photoelectrical coupler U3 of resistance R 10, resistance R 11, resistance R 13, resistance R 14, resistance R 15, capacitor C 8, three end parallel connections forms the output feedback network, thereby output voltage is adjusted to constant 12V.
Control chip CS9803 is built-in with two-level operating amplifier, and the micro voltage signal that infrared sensor PIR is sent amplifies.But in amplification process,, be easy to take place misoperation owing to there is noise jamming.Particularly the susceptibility of infrared sensor PIR is high more, and clutter is many more, disturbs big more.Therefore, be provided with a misoperation at the output of second level operational amplifier and prevent loop 28, this misoperation prevents to be provided with a capacitor C 9 in the loop 28, plays filter action, interfering signal is filtered out, thereby the computing amplifying signal that guarantees output is reliable.In addition, misoperation prevents that the capacitor C 9 in the loop also can be changed to elements such as inductance, all can as long as possess filter action.
Simultaneously, induction control module 20 also possesses a light-operated circuit 26, and these light-operated circuit 26 1 ends and control chip CS9803 receive the input voltage of 5V equally, and other end ground connection is equivalent in parallel with control chip CS9803.And this light-operated circuit 26 also is connected to 9 pin of control chip CS9803 with current constant mode.The photo resistance RG that on this light-operated circuit 26, connected, extraneous brightness is high more, and the resistance value of this photo resistance is more little.
If extraneous brightness is very high, the resistance of photo resistance RG is very little, then the voltage of light-operated circuit 26 is very little, be equivalent to the ground connection zero potential, control chip CS9803 then in parallel with it also is equivalent to zero potential, its 11 pin is blocked, even infrared sensor PIR has sensed infrared signal, control chip CS9803 also can't export induced signal.Otherwise dark if extraneous brightness is changeed, the resistance of photo resistance RG increases, and then voltage also increases thereupon, removes the blockade to 11 pin of control chip CS9803, and control chip CS9803 can generate and export induced signal according to the induction result of infrared sensor PIR.
In addition, also possess a delay circuit 25 that is made of oscillating circuit in the sensor circuit 24, its effect is to make induction control module 20 under infrared sensor PIR has responded to situation less than infrared signal, still continues in the certain hour to keep and the output induced signal.So, LED lamp 13 just is unlikely to the pedestrian just through just extinguishing suddenly, and is humanized.In addition, be arranged on the resistance of the variable resistor R5 in this delay circuit 25, can also regulate the duration of time-delay by adjusting.Such as, at the current place of vehicles such as parking lot, time-delay be set to 30 seconds just enough; And, then time-delay is made as 1 minute, thereby leave pedestrian's adequate time for away from building at walk places such as corridor, halls.
The source ground of FET 2SK2662, and be provided with ground terminal 63 at this earth terminal, the ground terminal 63 of each inductive lightning light fixture 10 also interconnects in the system.This is because because inductive lightning system 60 adopts the electric main power supply, the phase place of the input electric current of each LED lamp 13 is different probably in the system.If rashly each interlock terminal 61 is linked together, then cause short circuit probably owing to phase place is different.So, by with the source ground of FET 2SK2662 and interconnect, the input phase place of each LED lamp 13 is adjusted to unanimity, thereby avoids short circuit in the present embodiment.
In addition, the interlock terminal 61 of all inductive lightning light fixtures 10 also can unify to be connected to a control centre 62 in the system, directly send a modulating signal by the operator who is positioned at control centre 62 then, so that do not receive induced signal at switch module 40, but the operator judges when needing illumination, all the LED lamps 13 in the artificial lighting system.
Claims (10)
1. inductive lightning light fixture, it is characterized in that, have: induction control module (20), switch module (40), light source portion (11), the power supply control module (30) of powering for described induction control module (20), described switch module (40) and described light source portion (11), and be arranged on interlock terminal (61) between described switch module (40) and the described light source portion (11)
Wherein, described induction control module (20) generates an induced signal according to this outer signals when sensing outer signals, and the described induced signal that will generate reaches described switch module (40),
Described switch module (40) is when receiving described induced signal, via the tie point (64) of described interlock terminal (61), send a some modulating signal to described light source portion (11), when described induced signal disappears, described switch module (40) stops to send described some modulating signal
Described interlock terminal (61) can be connected with the described interlock terminal (61) of other inductive lightning light fixtures (10), make described some modulating signal the time through described tie point (64), can be passed to the described interlock terminal (61) of other inductive lightning light fixtures (10), and then be passed to the described light source portion (11) of other inductive lightning light fixtures (10)
Described light source portion (11) is not extinguished when receiving described some modulating signal in that to receive described some modulating signal time point bright.
2. inductive lightning light fixture according to claim 1 is characterized in that:
Described induction control module (20) possesses sensor circuit (24), and this sensor circuit (24) comprises sensor, and this sensor is infrared sensor or sonic transducer,
When described sensor was infrared sensor, described outer signals was the infrared radiation signal that human body is emitted;
When described sensor was sonic transducer, described outer signals was an acoustic signals.
3. inductive lightning light fixture according to claim 2 is characterized in that:
Described induction control module (20) also possesses light-operated circuit (26),
When described light-operated circuit (26) is sensed extraneous brightness greater than a default brightness value, the induced signal output of described sensor circuit (24) is blocked;
When described light-operated circuit (26) is sensed extraneous brightness less than a default brightness value, remove blockade to the induced signal output of described sensor circuit (24).
4. inductive lightning light fixture according to claim 2 is characterized in that:
Described sensor circuit (24) also has a delay circuit (25), makes described sensor circuit (24) still to keep described induced signal in the certain hour after described outer signals disappears.
5. inductive lightning light fixture according to claim 2 is characterized in that:
Described sensor circuit (24) also comprises the control chip that links to each other with described sensor, and this control chip comprises operational amplifier, is used to amplify the signal of described sensor output,
Be provided with misoperation at the output of described operational amplifier and prevent loop (28), be used to prevent that described control chip from not receiving described outer signals mistiming at described sensor and generating described induced signal.
6. inductive lightning light fixture according to claim 1 is characterized in that:
Described switch module (40) comprises a FET or a constant current control chip.
7. inductive lightning light fixture according to claim 1 is characterized in that,
Also has the ground terminal (63) that is connected with described switch module (40), this ground terminal (63) can be connected with the described ground terminal (63) of other inductive lightning light fixtures (10), thereby the described switch module (40) that makes described inductive lightning light fixture (10) and other inductive lightning light fixtures (10) altogether.
8. an inductive lightning system is characterized in that, has plural number small cup inductive lightning light fixture (10),
Wherein, every described inductive lightning light fixture (10) has:
Induction control module (20), switch module (40), light source portion (11), the power supply control module (30) of powering for described induction control module (20), described switch module (40) and described light source portion (11), and be arranged on interlock terminal (61) between described switch module (40) and the described light source portion (11)
Wherein, described induction control module (20) generates an induced signal according to this outer signals when sensing outer signals, and the described induced signal that will generate reaches described switch module (40),
Described switch module (40) is when receiving described induced signal, via the tie point (64) of described interlock terminal (61), send a some modulating signal to described light source portion (11), when described induced signal disappears, described switch module (40) stops to send described some modulating signal
Each described interlock terminal (61) of described plural number small cup inductive lightning light fixture (10) interconnects, make the described interlock terminal (61) of wherein arbitrary described inductive lightning light fixture of small cup (10) the described signal of lighting a lamp arranged through out-of-date, with this modulating signal via other interlock terminals (61) that link to each other, be passed to the described light source portion (11) of other inductive lightning light fixtures (10)
Described light source portion (11) is not extinguished when receiving described some modulating signal in that to receive described some modulating signal time point bright.
9. inductive lightning according to claim 8 system, it is characterized in that, also have: an interlock control centre (62), this interlock control centre (62) is connected with each described interlock terminal (61), and can send described some modulating signal to the described light source portion (11) of each described inductive lightning light fixture (10) via described interlock terminal (61).
10. inductive lightning according to claim 8 system is characterized in that:
Every described inductive lightning light fixture (10) also has the ground terminal (63) that is connected with described switch module (40),
Each described ground terminal (63) of described plural number small cup inductive lightning light fixture (10) interconnects, thereby the described switch module (40) that makes each described inductive lightning light fixture (10) altogether.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101844606A CN102261600A (en) | 2010-05-25 | 2010-05-25 | Induction lighting lamp and induction lighting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101844606A CN102261600A (en) | 2010-05-25 | 2010-05-25 | Induction lighting lamp and induction lighting system |
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| CN102261600A true CN102261600A (en) | 2011-11-30 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496304A (en) * | 2011-12-09 | 2012-06-13 | 广东朗视光电技术有限公司 | Parking lot management system |
| CN104219852A (en) * | 2014-09-19 | 2014-12-17 | 王柯 | Intelligent lighting system for entrance and exit of underground garage |
| CN104482459A (en) * | 2014-11-28 | 2015-04-01 | 苏州市欧博锐自动化科技有限公司 | Inductive lighting method of pedestrian overcrossing |
| CN104594172A (en) * | 2014-11-28 | 2015-05-06 | 苏州市欧博锐自动化科技有限公司 | Induction lamp of pedestrian overpass |
| CN105323896A (en) * | 2014-07-28 | 2016-02-10 | 李仁良 | Double-brightness sound-light control light emitting diode loop induction electric lamp |
| CN105485586A (en) * | 2016-01-13 | 2016-04-13 | 任锴 | Intelligent lamplight safety device for highway tunnel and underground or indoor parking area |
| CN106455185A (en) * | 2016-06-17 | 2017-02-22 | 合肥三川自控工程有限责任公司 | Functional fire-fighting emergency lighting and evacuation light fixture and intelligent control system |
| CN107027235A (en) * | 2017-06-21 | 2017-08-08 | 合肥木凡节能环保科技有限公司 | A kind of induction type fluorescent lamp |
| CN107072017A (en) * | 2017-06-14 | 2017-08-18 | 南平市允升高新技术开发有限公司 | Parking lot energy saving illumination control system |
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| CN200966170Y (en) * | 2006-04-05 | 2007-10-24 | 联准实业有限公司 | Infrared lighting and warning lamp set |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496304A (en) * | 2011-12-09 | 2012-06-13 | 广东朗视光电技术有限公司 | Parking lot management system |
| CN105323896A (en) * | 2014-07-28 | 2016-02-10 | 李仁良 | Double-brightness sound-light control light emitting diode loop induction electric lamp |
| CN104219852A (en) * | 2014-09-19 | 2014-12-17 | 王柯 | Intelligent lighting system for entrance and exit of underground garage |
| CN104482459A (en) * | 2014-11-28 | 2015-04-01 | 苏州市欧博锐自动化科技有限公司 | Inductive lighting method of pedestrian overcrossing |
| CN104594172A (en) * | 2014-11-28 | 2015-05-06 | 苏州市欧博锐自动化科技有限公司 | Induction lamp of pedestrian overpass |
| CN105485586A (en) * | 2016-01-13 | 2016-04-13 | 任锴 | Intelligent lamplight safety device for highway tunnel and underground or indoor parking area |
| CN106455185A (en) * | 2016-06-17 | 2017-02-22 | 合肥三川自控工程有限责任公司 | Functional fire-fighting emergency lighting and evacuation light fixture and intelligent control system |
| CN106455185B (en) * | 2016-06-17 | 2018-01-23 | 合肥三川自控工程有限责任公司 | Multifunctional fire-fighting emergency lighting and evacuation light fixture and intelligence control system |
| CN107072017A (en) * | 2017-06-14 | 2017-08-18 | 南平市允升高新技术开发有限公司 | Parking lot energy saving illumination control system |
| CN107072017B (en) * | 2017-06-14 | 2019-05-07 | 南平市允升高新技术开发有限公司 | Parking lot energy saving illumination control system |
| CN107027235A (en) * | 2017-06-21 | 2017-08-08 | 合肥木凡节能环保科技有限公司 | A kind of induction type fluorescent lamp |
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