CN104219847A - Indoor automatic illumination circuit - Google Patents
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- CN104219847A CN104219847A CN201410470237.6A CN201410470237A CN104219847A CN 104219847 A CN104219847 A CN 104219847A CN 201410470237 A CN201410470237 A CN 201410470237A CN 104219847 A CN104219847 A CN 104219847A
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- 238000005286 illumination Methods 0.000 title claims abstract description 47
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims description 40
- 230000005622 photoelectricity Effects 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000003381 stabilizer Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The invention discloses an indoor automatic illumination circuit, and belongs to the technical field of indoor illumination. The indoor automatic illumination circuit comprises a voltage-stabilized source circuit, a trigger circuit, a memory circuit and an illumination photoelectric bleeder circuit, wherein the voltage-stabilized source circuit is connected with the trigger circuit, the memory circuit and the illumination photoelectric bleeder circuit, the memory circuit is connected with the trigger circuit and the illumination photoelectric bleeder circuit, and the illumination photoelectric bleeder circuit comprises a slide rheostat W, a phototriode BG, a second triode VT2, a seventh resistor R7, a bidirectional triode thyristor VS and an illumination lamp ZD. A door-opening trigger signal is acquired by the trigger circuit composed of a Hall sensor B; the memory circuit is used for differentiating a door-opening signal from a door-closing signal, thus a lamp is turned on when people open a door and enter and is turned off when people open a door and leave; the illumination photoelectric bleeder circuit is used for realizing a light-control effect, and the lamp is not turned on in case of a high illumination intensity in the daytime and is turned on in the night or in case of a dark light in the daytime; the indoor automatic illumination circuit has the advantages of being convenient to use, reliable in running, and remarkable in energy-saving effect.
Description
Technical field
The invention belongs to Inner-lighting Technology field, be specifically related to a kind of indoor automatic lighting circuit.
Background technology
For a long time, people are accustomed to adopting hand switch to realize the switch control of the indoor illumination such as kitchen, toilet, and human factor is large, often can cause waste of energy because forgetting to turn off the light.Along with the propelling of scientific and technological development and national energy-saving reduction of discharging policy, the control device of room lighting is also progressively being upgraded.Some lighting circuits develop into and utilize rpyroelectric infrared sensing module to gather the infrared signal sent of human body to realize automatic illuminating control, in the time infrared signal having been detected, and the illumination of automatically turning on light; After people leaves, close streetlamp energy-saving.But rpyroelectric infrared sensing module has the following disadvantages in actual application process: complicated, on the high side, manageability is not installed, in addition, owing to not possessing supporting light-operated circuit, thereby also can open lighting circuit because human body enters sensitive zones by day, cause waste of energy.As " the timing automatic lighting switch " of Chinese utility model patent Granted publication CN203416451U recommendation, it utilizes available light in phototriode nernst cell, realize the light-operated effect that natural lighting is turned on light when lamp does not work when enough, natural lighting is not enough automatically, utilize magnet and tongue tube to realize people's automatic illuminating control that while entering, lamp is bright, time delay certain hour back light goes out of opening the door.But in this design, if need to continue illumination, need manually to close a switch, slightly do not note still can occurring " altar lamp " phenomenon; In addition, tongue tube is mechanical magnet-sensitive switch, and owing to being the passive device of contact, its working life is limited, and is easily damaged in installation process.
In view of above-mentioned prior art, be necessary existing indoor automatic lighting circuit to be improved, for this reason, the applicant has done useful design, and technical scheme described below produces under this background.
Summary of the invention
The object of the present invention is to provide a kind of easy to use, reliable and there is the indoor automatic lighting circuit of light control functionality.
The object of the invention is to reach like this, a kind of indoor automatic lighting circuit, is characterized in that: comprise voltage-stabilized power supply circuit, circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit, described voltage-stabilized power supply circuit respectively with circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit connect, and described memory circuit is connected with circuits for triggering and illumination photoelectricity bleeder circuit respectively, and described memory circuit comprises the first trigger IC1, the second trigger IC2, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 3rd capacitor C 3, the 4th capacitor C 4, the first triode VT1, the second diode VD2, push-button switch SA, relay coil J, and the relay contact J-1 corresponding with relay coil J, one end of the second described resistance R 2 is connected with 3 pin of the first trigger IC1, and connect described circuits for triggering as the signal input part of memory circuit, 4 pin of the first trigger IC1 are connected with one end of anodal and the 3rd resistance R 3 of the 3rd capacitor C 3 respectively, the other end of the 3rd resistance R 3 respectively with 1 pin of the first trigger IC1, one end of push-button switch SA, 11 pin of one end of the 4th resistance R 4 and the second trigger IC2 connect, 9 pin of the second trigger IC2 are connected with 12 pin, 10 pin of the second trigger IC2 are connected with one end of the 4th capacitor C 4 and one end of the 5th resistance R 5 respectively, 13 pin of the second trigger IC2 are connected with one end of the 6th resistance R 6, the other end of the 6th resistance R 6 connects the base stage of the first triode VT1, the collector electrode of the first triode VT1 is connected with one end of relay coil J and the positive pole of the second diode VD2, the other end of the second resistance R 2, 5 of the first trigger IC1, 14 pin, the other end of push-button switch SA, the other end of the 4th capacitor C 4, the other end of relay coil J, the common cathode output end that connects described voltage-stabilized power supply circuit in one end of the negative pole of the second diode VD2 and relay contact J-1, the other end of relay contact J-1 connects described illumination photoelectricity bleeder circuit, 6 pin of the first trigger IC1 as the output of memory circuit, the negative pole of the 3rd capacitor C 3, the other end of the 4th resistance R 4, the other end of the 5th resistance R 5, 7 of the second trigger IC2, the emitter of 8 pin and the first triode VT1 connects the cathode output end of voltage-stabilized power supply circuit jointly, and described illumination photoelectricity bleeder circuit comprises slide rheostat W, phototriode BG, the second triode VT2, the 7th resistance R 7, bidirectional triode thyristor VS and illuminating lamp ZD, one end of described slide rheostat W is connected with sliding end, and connect described memory circuit as the input of illumination photoelectricity bleeder circuit, the other end of slide rheostat W is connected with the collector electrode of phototriode BG and the base stage of the second triode VT2 respectively, the collector electrode of the second triode VT2 is connected with one end of the 7th resistance R 7, the other end of the 7th resistance R 7 is connected with the control utmost point of bidirectional triode thyristor VS, a main electrode of bidirectional triode thyristor VS connects the L line of external ac power source, another main electrode of bidirectional triode thyristor VS is connected with one end of illuminating lamp ZD, the other end of illuminating lamp ZD connects the N line of external ac power source, and the emitter of phototriode BG and the emitter of the second triode VT2 are connected the cathode output end of voltage-stabilized power supply circuit jointly.
In a specific embodiment of the present invention, described voltage-stabilized power supply circuit comprises the first resistance R 1, the first capacitor C 1, the second capacitor C 2, the first diode VD1 and voltage-stabiliser tube DW, one end of the first described resistance R 1 and one end of the first capacitor C 1 are connected the L line of external ac power source jointly, the other end of the first resistance R 1 respectively with the other end of the first capacitor C 1, the positive pole of the negative pole of voltage-stabiliser tube DW and the first diode VD1 connects, the negative pole of the first diode VD1 is connected with the positive pole of the second capacitor C 2, and as the cathode output end of voltage-stabilized power supply circuit respectively with circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit connect, the positive pole of voltage-stabiliser tube DW and the negative pole of the second capacitor C 2 are connected the N line of external ac power source jointly, and as the cathode output end of voltage-stabilized power supply circuit respectively with circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit connect.
In another specific embodiment of the present invention, described circuits for triggering comprise Hall element B and and the magnet steel T that is used in conjunction with of described Hall element B, wherein, Hall element B adopts SL3020, the positive supply input of Hall element B connects the cathode output end of voltage-stabilized power supply circuit, the negative supply input of Hall element B connects the cathode output end of voltage-stabilized power supply circuit, and the signal output part of Hall element B connects described memory circuit.
In another specific embodiment of the present invention, described the first trigger IC1 and the second trigger IC2 adopt same double D trigger, and described double D trigger is CD4013.
In another specific embodiment of the present invention, described Hall element B is arranged on doorframe, and described magnet steel T is arranged on a upper position corresponding with Hall element B.
Also have in a specific embodiment of the present invention, it is upper that described Hall element B is arranged on door, and described magnet steel T is arranged on position corresponding with Hall element B on doorframe.
The present invention is owing to having adopted said structure, by the circuits for triggering collection being made up of the Hall element B triggering signal of opening the door; Described memory circuit is used for distinguishing switch gate signal, someone is opened the door and while entering, turn on light, open the door and turn off the light while leaving; Described illumination photoelectricity bleeder circuit is used for realizing light-operated effect, when daylight intensity is high, does not turn on light, and when night or daytime, light was dark, turns on light, and has easy to use, reliable, the significant advantage of energy-saving effect.
Brief description of the drawings
Fig. 1 is electrical schematic diagram of the present invention.
Embodiment
Applicant will describe in detail the specific embodiment of the present invention below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, anyly changes in the form rather than substance and all should be considered as protection scope of the present invention according to the present invention design.
Refer to Fig. 1, a kind of indoor automatic lighting circuit, comprises voltage-stabilized power supply circuit, circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit.Described voltage-stabilized power supply circuit is connected with circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit respectively, and described memory circuit is connected with circuits for triggering and illumination photoelectricity bleeder circuit respectively.Described voltage-stabilized power supply circuit comprises the first resistance R 1, the first capacitor C 1, the second capacitor C 2, the first diode VD1 and voltage-stabiliser tube DW.One end of the first described resistance R 1 and one end of the first capacitor C 1 are connected the L line (live wire) of external ac power source jointly, and the other end of the first resistance R 1 is connected with the other end, the negative pole of voltage-stabiliser tube DW and the positive pole of the first diode VD1 of the first capacitor C 1 respectively.The negative pole of the first diode VD1 is connected with the positive pole of the second capacitor C 2, and is connected with circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit respectively as the cathode output end of voltage-stabilized power supply circuit.The positive pole of voltage-stabiliser tube DW is connected the N line (zero line) of external ac power source jointly with the negative pole of the second capacitor C 2, and is connected with circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit respectively as the cathode output end of voltage-stabilized power supply circuit.Outside 220V AC power becomes stable 12V direct voltage after the first capacitor C 1 step-down current limliting, the first diode VD1 rectification, the second capacitor C 2 filtering and voltage-stabiliser tube DW voltage stabilizing, is respectively circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit power supply is provided.The magnet steel T that described circuits for triggering comprise Hall element B and are used in conjunction with this Hall element B, in the present embodiment, described Hall element B adopts SL3020.The positive supply input (1 pin) of described Hall element B connects the cathode output end of voltage-stabilized power supply circuit, the negative supply input (2 pin) of Hall element B connects the cathode output end of voltage-stabilized power supply circuit, and the signal output part (3 pin) of Hall element B connects described memory circuit.In the time of practical application, described Hall element B and magnet steel T are arranged on respectively on door and doorframe, and in the time that Hall element B is arranged on doorframe, described magnet steel T is arranged on a upper position corresponding with Hall element B; When described Hall element B is arranged on when upper, described magnet steel T is arranged on position corresponding with Hall element B on doorframe.Described memory circuit comprises the first trigger IC1, the second trigger IC2, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 3rd capacitor C 3, the 4th capacitor C 4, the first triode VT1, the second diode VD2, push-button switch SA, relay coil J and the relay contact J-1 corresponding with relay coil J, in the present embodiment, described the first trigger IC1 and the second trigger IC2 adopt same double D trigger, and described double D trigger is CD4013.Push-button switch SA adopts CS316, and the relay that described relay coil J and relay contact J-1 are corresponding is 3V Miniature direct current relay.One end of the second described resistance R 2 is connected with 3 pin of the first trigger IC1, and connects described circuits for triggering as the signal input part of memory circuit.4 pin of the first trigger IC1 are connected with one end anodal and the 3rd resistance R 3 of the 3rd capacitor C 3 respectively, the other end of the 3rd resistance R 3 respectively with 1 pin of the first trigger IC1, one end of push-button switch SA, 11 pin of one end of the 4th resistance R 4 and the second trigger IC2 connect, 9 pin of the second trigger IC2 are connected with 12 pin, 10 pin of the second trigger IC2 are connected with one end of the 4th capacitor C 4 and one end of the 5th resistance R 5 respectively, 13 pin of the second trigger IC2 are connected with one end of the 6th resistance R 6, the other end of the 6th resistance R 6 connects the base stage of the first triode VT1, the collector electrode of the first triode VT1 is connected with one end of relay coil J and the positive pole of the second diode VD2.The common cathode output end that connects described voltage-stabilized power supply circuit in the other end, the negative pole of the second diode VD2 and one end of relay contact J-1 of the other end of the other end of the second resistance R 2,5,14 pin of the first trigger IC1, push-button switch SA, the other end of the 4th capacitor C 4, relay coil J, the other end of relay contact J-1 connects described illumination photoelectricity bleeder circuit as the output of memory circuit.The other end of 6 pin of the first trigger IC1, the negative pole of the 3rd capacitor C 3, the 4th resistance R 4, the other end of the 5th resistance R 5,7,8 pin of the second trigger IC2 and the emitter of the first triode VT1 connect the cathode output end of voltage-stabilized power supply circuit jointly.Herein, the first described trigger IC1 connects into monostable circuit, and the second trigger IC2 is connected to bistable circuit, due to the 6 pin dead earths of the first trigger IC1, so 1 pin output low level; The second trigger IC2 is in the moment that rigidly connects energize, there is the positive spike after the 4th capacitor C 4 and the 5th resistance R 5 differential to act on 10 pin, the second trigger IC2 is resetted, 13 pin output low levels, the first triode VT1 cut-off, relay coil J dead electricity, relay contact J-1 disconnects, and illumination photoelectricity bleeder circuit is disconnected.Described illumination photoelectricity bleeder circuit comprises slide rheostat W, phototriode BG, the second triode VT2, the 7th resistance R 7, bidirectional triode thyristor VS and illuminating lamp ZD, in the present embodiment, phototriode BG is 3DU33, and bidirectional triode thyristor VS adopts 3A/600V bidirectional triode thyristor.Other electronic component in the present embodiment, all can adopt conventional element, without particular/special requirement.One end of described slide rheostat W is connected with sliding end, and connects described memory circuit as the input of illumination photoelectricity bleeder circuit.The other end of slide rheostat W is connected with the collector electrode of phototriode BG and the base stage of the second triode VT2 respectively, the collector electrode of the second triode VT2 is connected with one end of the 7th resistance R 7, and the other end of the 7th resistance R 7 is connected with the control utmost point of bidirectional triode thyristor VS.A main electrode of bidirectional triode thyristor VS connects the L line of external ac power source, and another main electrode of bidirectional triode thyristor VS is connected with one end of illuminating lamp ZD, and the other end of illuminating lamp ZD connects the N line of external ac power source.The emitter of phototriode BG and the emitter of the second triode VT2 are connected the cathode output end of voltage-stabilized power supply circuit jointly.
Please continue to refer to Fig. 1, operation principle of the present invention is described as application examples using toilet illumination.Hall element B is installed on a top, and magnet steel T is arranged on position corresponding with Hall element B on doorframe.At ordinary times, bathroom door is always closed, Hall element B because of with magnet steel T near output low level, no pulse triggers the first trigger IC1, therefore the second trigger IC2 does not overturn, the first triode VT1, bidirectional triode thyristor VS cut-off, illuminating lamp ZD does not work.When having people to open the door to enter toilet and closing while visiting, magnet steel T leaves Hall element B, make Hall element B output high level, the first trigger IC1 is triggered, 1 pin output high level, the second trigger IC2 overturns, the high level of its 13 pin output, after the first triode VT1 amplifies, makes relay coil J obtain electric, relay contact J-1 closure, and illumination photoelectricity bleeder circuit is started working thus.If be now daytime, and indoor illumination is good, phototriode BG is low resistive state, itself and slide rheostat W dividing potential drop, make the base stage of the second triode VT2 be electronegative potential, the second triode VT2 cut-off, bidirectional triode thyristor VS triggerless voltage and ending, illuminating lamp ZD does not work.If be now night, or when daytime, indoor illumination was inadequate, phototriode BG is high-impedance state, itself and slide rheostat W dividing potential drop, make the base stage of the second triode VT2 in high potential, the second triode VT2 saturation conduction, trigger bidirectional triode thyristor VS conducting, illuminating lamp ZD obtains electric lighting.Leave toilet and close while visiting when people opens the door, magnet steel T makes Hall element B output high level again, this high level again triggers the first trigger IC1 and makes the second trigger IC2 upset, 13 pin of the second trigger IC2 become low level, relay coil J dead electricity, illumination photoelectricity bleeder circuit is disconnected, and illuminating lamp ZD extinguishes.The temporary stable state time of the first trigger IC1 is determined by the 3rd resistance R 3 and the 3rd capacitor C 3, generally gets 3～5 seconds, and during this period of time, if opened the door for several times, the first trigger IC1 can not be affected.Push-button switch SA is hand push button, arranges in order to deal with some special circumstances.For example, the cleaning that opens the door, and need to put bright light time, now can press push-button switch SA once or twice, makes the second trigger IC2 change output state, lights or extinguishes illuminating lamp ZD.
Claims (6)
1.
a kind of indoor automatic lighting circuit, is characterized in that: comprise voltage-stabilized power supply circuit, circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit, described voltage-stabilized power supply circuit respectively with circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit connect, and described memory circuit is connected with circuits for triggering and illumination photoelectricity bleeder circuit respectively, and described memory circuit comprises the first trigger IC1, the second trigger IC2, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 3rd capacitor C 3, the 4th capacitor C 4, the first triode VT1, the second diode VD2, push-button switch SA, relay coil J, and the relay contact J-1 corresponding with relay coil J, one end of the second described resistance R 2 is connected with 3 pin of the first trigger IC1, and connect described circuits for triggering as the signal input part of memory circuit, 4 pin of the first trigger IC1 are connected with one end of anodal and the 3rd resistance R 3 of the 3rd capacitor C 3 respectively, the other end of the 3rd resistance R 3 respectively with 1 pin of the first trigger IC1, one end of push-button switch SA, 11 pin of one end of the 4th resistance R 4 and the second trigger IC2 connect, 9 pin of the second trigger IC2 are connected with 12 pin, 10 pin of the second trigger IC2 are connected with one end of the 4th capacitor C 4 and one end of the 5th resistance R 5 respectively, 13 pin of the second trigger IC2 are connected with one end of the 6th resistance R 6, the other end of the 6th resistance R 6 connects the base stage of the first triode VT1, the collector electrode of the first triode VT1 is connected with one end of relay coil J and the positive pole of the second diode VD2, the other end of the second resistance R 2, 5 of the first trigger IC1, 14 pin, the other end of push-button switch SA, the other end of the 4th capacitor C 4, the other end of relay coil J, the common cathode output end that connects described voltage-stabilized power supply circuit in one end of the negative pole of the second diode VD2 and relay contact J-1, the other end of relay contact J-1 connects described illumination photoelectricity bleeder circuit, 6 pin of the first trigger IC1 as the output of memory circuit, the negative pole of the 3rd capacitor C 3, the other end of the 4th resistance R 4, the other end of the 5th resistance R 5, 7 of the second trigger IC2, the emitter of 8 pin and the first triode VT1 connects the cathode output end of voltage-stabilized power supply circuit jointly, and described illumination photoelectricity bleeder circuit comprises slide rheostat W, phototriode BG, the second triode VT2, the 7th resistance R 7, bidirectional triode thyristor VS and illuminating lamp ZD, one end of described slide rheostat W is connected with sliding end, and connect described memory circuit as the input of illumination photoelectricity bleeder circuit, the other end of slide rheostat W is connected with the collector electrode of phototriode BG and the base stage of the second triode VT2 respectively, the collector electrode of the second triode VT2 is connected with one end of the 7th resistance R 7, the other end of the 7th resistance R 7 is connected with the control utmost point of bidirectional triode thyristor VS, a main electrode of bidirectional triode thyristor VS connects the L line of external ac power source, another main electrode of bidirectional triode thyristor VS is connected with one end of illuminating lamp ZD, the other end of illuminating lamp ZD connects the N line of external ac power source, and the emitter of phototriode BG and the emitter of the second triode VT2 are connected the cathode output end of voltage-stabilized power supply circuit jointly.
2.
indoor automatic lighting circuit according to claim 1, it is characterized in that described voltage-stabilized power supply circuit comprises the first resistance R 1, the first capacitor C 1, the second capacitor C 2, the first diode VD1 and voltage-stabiliser tube DW, one end of the first described resistance R 1 and one end of the first capacitor C 1 are connected the L line of external ac power source jointly, the other end of the first resistance R 1 respectively with the other end of the first capacitor C 1, the positive pole of the negative pole of voltage-stabiliser tube DW and the first diode VD1 connects, the negative pole of the first diode VD1 is connected with the positive pole of the second capacitor C 2, and as the cathode output end of voltage-stabilized power supply circuit respectively with circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit connect, the positive pole of voltage-stabiliser tube DW and the negative pole of the second capacitor C 2 are connected the N line of external ac power source jointly, and as the cathode output end of voltage-stabilized power supply circuit respectively with circuits for triggering, memory circuit and illumination photoelectricity bleeder circuit connect.
3.
indoor automatic lighting circuit according to claim 1, it is characterized in that described circuits for triggering comprise Hall element B and and the magnet steel T that is used in conjunction with of described Hall element B, wherein, Hall element B adopts SL3020, the positive supply input of Hall element B connects the cathode output end of voltage-stabilized power supply circuit, the negative supply input of Hall element B connects the cathode output end of voltage-stabilized power supply circuit, and the signal output part of Hall element B connects described memory circuit.
4.
indoor automatic lighting circuit according to claim 2, is characterized in that described the first trigger IC1 and the second trigger IC2 adopt same double D trigger, and described double D trigger is CD4013.
5.
indoor automatic lighting circuit according to claim 3, is characterized in that described Hall element B is arranged on doorframe, and described magnet steel T is arranged on a upper position corresponding with Hall element B.
6.
indoor automatic lighting circuit according to claim 3, is characterized in that described Hall element B is arranged on door upper, and described magnet steel T is arranged on position corresponding with Hall element B on doorframe.
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| CN201410470237.6A CN104219847B (en) | 2014-09-16 | 2014-09-16 | Indoor automatic lighting circuit |
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| CN201410470237.6A CN104219847B (en) | 2014-09-16 | 2014-09-16 | Indoor automatic lighting circuit |
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| CN109743824A (en) * | 2019-03-03 | 2019-05-10 | 山西工程技术学院 | Based on timing, photosensitive intelligent road-lamp lighting control system and implementation method |
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| CN104219847B (en) | 2016-09-07 |
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