CN108575035A - Light emission luminance with environmental change traffic lights - Google Patents
Light emission luminance with environmental change traffic lights Download PDFInfo
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- CN108575035A CN108575035A CN201810398495.6A CN201810398495A CN108575035A CN 108575035 A CN108575035 A CN 108575035A CN 201810398495 A CN201810398495 A CN 201810398495A CN 108575035 A CN108575035 A CN 108575035A
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- circuit
- resistance
- light emission
- emission luminance
- traffic lights
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to a kind of light emission luminance with the traffic lights of environmental change, and feature includes 220V AC powers, 12V DC regulated power supply, photosensor signal and its amplifying circuit, relaxation oscillations type trigger circuit, signal timing cyclic switching circuit；For light emission luminance of the present invention with the traffic lights of environmental change, it is the illumination according to ambient light, and photosensitive circuit is taken to automatically adjust the light emission luminance of incandescent lamp traffic lights according to ambient lighting.The light emission luminance that signal lamp can be increased automatically when daylight environment is bright and clear, when again ambient light illumination is weaker or at dark, incandescent lamp traffic lights can reduce light emission luminance automatically.If encounter rainy days or haze sky, or play the weather such as greasy weather, it can suitably reduce the light emission luminance of incandescent lamp traffic lights automatically, and incandescent lamp traffic lights is enable preferably to command road traffic.
Description
Technical field
The invention belongs to electronic technology and lighting technical field, it is related to a kind of traffic signals of light emission luminance with environmental change
Lamp.
Background technology
Present Traffic Signals in Urban Roads lamp majority performance is reliable and energy-efficient high-brightness light emitting diode.But make
Making traffic lights with cheap incandescent lamp still has certain market.Make the luminance of conventional incandescent traffic signals
Degree, it no matter daytime or night its light emission luminance be it is changeless, have sunlight daytime conventional incandescent friendship
Messenger light emission luminance seems not bright enough, and seems special too bright, too dazzling to its light emission luminance of night, instead
It is unfavorable for commanding road traffic.So how to solve existing this phenomenon
For light emission luminance of the present invention with the traffic lights of environmental change, it is the illumination according to ambient light, is adopted
Photosensitive circuit is taken to automatically adjust the light emission luminance of incandescent lamp traffic lights according to ambient lighting.When daylight environment is bright and clear
The light emission luminance that signal lamp can be increased automatically, when ambient light illumination is weaker or at dark, incandescent lamp traffic lights again can be certainly
It is dynamic to reduce light emission luminance.If encounter rainy days or haze sky, or play the weather such as greasy weather, it can suitably reduce incandescent lamp automatically
The light emission luminance of traffic lights enables incandescent lamp traffic lights preferably to command road traffic.
Light emission luminance of the present invention described further below institute in implementation process with the traffic lights of environmental change
It is related to necessary, key technique content.
Invention content
Goal of the invention and advantageous effect：For light emission luminance of the present invention with the traffic lights of environmental change, it is root
According to the illumination of ambient light, photosensitive circuit is taken to automatically adjust the light emission luminance of incandescent lamp traffic lights according to ambient lighting.
The light emission luminance that signal lamp can be increased automatically when daylight environment is bright and clear, when ambient light illumination is weaker or at dark, in vain
Vehement lamp traffic lights can reduce light emission luminance automatically again.If encounter rainy days or haze sky, or play the weather such as greasy weather, it
The light emission luminance that incandescent lamp traffic lights can suitably be reduced automatically, enables incandescent lamp traffic lights preferably road to be commanded to hand over
It is logical.
Circuit operation principle：Light emission luminance passes through capacitance-resistance with the traffic signals circuit for lamp of environmental change by 220V AC powers
After decompression and halfwave rectifier, and 12V DC regulated power supply is obtained through zener diode DW voltage stabilizings, supplying entire circuit by it makes
With.Bidirectional triode thyristor trigger circuit is formed by relaxation oscillations circuit, changes the i.e. changeable traffic of the angle of flow of bidirectional triode thyristor BCR
The light emission luminance of signal lamp.
Light emission luminance is with the traffic lights working law of environmental change：When daylight environment brightness is brighter, Photosensitive
When transistor VT1 is made its resistance value be reduced rapidly by illumination, the electric current of trigger circuit increases, the luminous brightness of traffic lights with
Increase；
When ambient brightness is dimmed, because the photosensitive transistor npn npn VT1 illumination reductions being illuminated by the light make its resistance value increase, tension and relaxation is shaken
The both end voltage rising for swinging capacitance C3 in circuit becomes faster, and so that the bidirectional triode thyristor BCR angles of flow is reduced, the electricity at traffic lights both ends
Pressure is reduced rapidly, and the luminous brightness of traffic lights also declines therewith.
Above-mentioned operation principle is by taking red colored lamp HLr as an example, when time loop control switching switch Kn is switched to green respectively
When lamp HLg or amber light HLy, circuit operation principle is complete with red colored lamp HLr (actually incandescent lamp) operation principle of above-mentioned analysis
It is complete consistent.
Technical characteristic：For light emission luminance with the traffic lights of environmental change, it includes that 220V AC powers, 12V DC are steady
Voltage source, photosensor signal and its amplifying circuit, relaxation oscillations type trigger circuit, signal timing cyclic switching circuit, feature
It is：
Photosensor signal and its amplifying circuit：It is by resistance R2, resistance R3, photosensitive transistor npn npn VT1, PNP transistor VT2
It is formed with linear potentiometer RP, the base stage of PNP transistor VT2 connects the collector and linear potentiometer of photosensitive transistor npn npn VT1
One end of RP, the other end and its activity termination circuit anode VCC of linear potentiometer RP, the emitter of photosensitive transistor npn npn VT1
One end of one end of the emitter connecting resistance R2 of with connecing circuit GND, PNP transistor VT2 and the R3 of resistance, resistance R2's is another
Another termination circuit of termination circuit anode VCC, resistance R3 GND, the collector of PNP transistor VT2 connect relaxation oscillations type
Trigger circuit；
Relaxation oscillations type trigger circuit：It is made of unijunction transistor VT3, capacitance C3 and resistance R4, unijunction transistor VT3
One end of the emitter e of the model BT33 of selection, unijunction transistor VT3 and the collector and capacitance C3 of PNP transistor VT2
Be connected, the first base stage b1 of another termination circuit of capacitance C3 ground GND, unijunction transistor VT3 by resistance R4 with connecing circuit
The second base stage b2 of GND, unijunction transistor VT3 meet circuit anode VCC；
Signal timing cyclic switching circuit：It is by time loop control switching switch Kn, bidirectional triode thyristor BCR and red
Lamp HLr, green light HLg and amber light HLy compositions, the first base of the control pole G order junction transistors VT3 of bidirectional triode thyristor BCR
GND, the second plate T2 of bidirectional triode thyristor BCR connect red colored lamp to the first anode T1 of pole b1, bidirectional triode thyristor BCR with connecing circuit
One end of HLr, one end and amber light HLy of green light HLg one end, another termination time loop control of red colored lamp HLr cuts
The green light terminal g of another termination time loop control switching switch Kn of red colored lamp the terminal r, green light HLg of switch Kn is changed,
The amber light terminal y of another termination time loop control switching switch Kn of amber light HLy, time loop control switch switch Kn
Common end com meet 220V AC power zero lines L；
12V DC regulated power supply：It is by step-down capacitor C1, bleeder resistance R1, silicon rectifier diode D1, silicon voltage regulator diode
DW and filter capacitor C2 compositions, the voltage stabilizing value that silicon voltage regulator diode DW is used is 12V, and 220V AC power zero lines L connects decompression
One end of one end and bleeder resistance R1 of capacitance C1, the other end of step-down capacitor C1 and another termination silicon rectifier of bleeder resistance R1
The anode of diode D1, the cathode of silicon rectifier diode D1 connect the anode of the cathode and filter capacitor C2 of silicon voltage regulator diode DW,
The anode of silicon voltage regulator diode DW and cathode with the connecing circuit GND of filter capacitor C2；
12V DC positive pole of stabilized voltage supply is connected with circuit anode VCC, 12V DC regulated power supply cathode and circuit GND and
220V AC power zero line sides N is connected.
Description of the drawings
Attached drawing 1 is that light emission luminance provided by the invention works with the circuit of traffic lights one embodiment of environmental change
Schematic diagram；Dashed rectangle in attached drawing 1 is that time loop control switches switch Kn, and equivalent circuit is equivalent to 1 single-pole three throw
Switch.
Specific implementation mode
It is said with the traffic lights circuit fundamental diagram and attached drawing of environmental change according to attached light emission luminance shown in FIG. 1
It is bright, and according to connection relation between component in each section circuit described in invention content and the member described in embodiment
Device technology parameter request and circuit production main points carry out implementing that the present invention can be realized, with reference to embodiments to the present invention's
The relevant technologies are further described.
The technical parameter of component and its selection require
D1 is silicon rectifier diode, the model 1N4007 of selection；
DW zener diodes, the voltage stabilizing value used is 12V, power 1W；
VT1 is photosensitive transistor npn npn, and the photosensitive transistor npn npn of the models such as 3DU5 can be selected；
VT2 is PNP transistor, the model 2SC9012 of selection, it is desirable that amplification factor β >=160；
VT3 is unijunction transistor, the model BT33 of selection；
BCR is bidirectional triode thyristor, and the technical parameter used is 2.0A, 450V；
The resistance value of linear potentiometer RP is 82K Ω, power 1W；
The resistance value of bleeder resistance R1 is 680K Ω, power 2W；It is 1/4W metalfilmresistors, electricity that other resistance, which select power,
The resistance value for hindering R2 is 2.7K Ω；The resistance value of resistance R3 is 100K Ω；The resistance value of resistance R4 is 200~270 Ω；
C1 is step-down capacitor, and capacity is 0.68 μ F/450V；C2 is filter capacitor, and capacity is 680 μ F/25V；Capacitance C3 is
Electric capacity of the dacron, capacity is 0.1 μ F, pressure resistance 160V；
Power≤150W the incandescent lamp bulbs for recommending red colored lamp HLr, green light HLg and amber light HLy to use；
Kn is time loop control switching switch, and three groups of circulating section controls for being respectively provided with independent time setting may be selected
Switch.
Circuit production main points and circuit debugging
When making circuit of the light emission luminance with the traffic lights of environmental change, as long as the electronic component performance selected
It is intact, and the component connection relation in attached drawing 1 is welded to specifications, physical connection line and welding quality are by careful
After checking correctly, it can be worked normally as long as circuit is slightly debugged；
The position of opening of Photosensitive triode VT 1 should be arranged around street lamp light-illuminating less than place；
When debugging traffic signals circuit for lamp of the light emission luminance with environmental change, first the resistance value of linear potentiometer RP is transferred to
Maximum value, surveying the both ends red colored lamp HLr DC voltage with multimeter should be in 205V or more, if can adjust photosensitive window less than 200V
Size or photosensitive transistor npn npn VT1 installation sites, make up to requirement；
The resistance value of linear potentiometer RP is adjusted, the DC voltage at the both ends red colored lamp HLr should change between 130~205V,
Otherwise the resistance value of linear potentiometer RP can be replaced, or slightly adjusts the resistance value of resistance R4；
Once red colored lamp HLr light emission luminance is adjusted to satisfied, then the hair of the light emission luminance of green light HLg and amber light HLy
Brightness does not need to adjust again.
The circuit structure design of the present invention, components' placement and its structure feature, face shaping and size etc.
It is not the key technology of the present invention, nor claimed key technique content, because not influencing tool of the present invention
The realization of body implementation process and goal of the invention, therefore do not illustrate one by one in the description.
Claims (1)
1. a kind of light emission luminance is with the traffic lights of environmental change, it include 220V AC powers, 12V DC regulated power supply,
Photosensor signal and its amplifying circuit, relaxation oscillations type trigger circuit, signal timing cyclic switching circuit, it is characterised in that：
The photosensor signal and its amplifying circuit is by resistance R2, resistance R3, photosensitive transistor npn npn VT1, PNP transistor VT2
It is formed with linear potentiometer RP, the base stage of PNP transistor VT2 connects the collector and linear potentiometer of photosensitive transistor npn npn VT1
One end of RP, the other end and its activity termination circuit anode VCC of linear potentiometer RP, the emitter of photosensitive transistor npn npn VT1
One end of one end of the emitter connecting resistance R2 of with connecing circuit GND, PNP transistor VT2 and the R3 of resistance, resistance R2's is another
Another termination circuit of termination circuit anode VCC, resistance R3 GND, the collector of PNP transistor VT2 connect relaxation oscillations type
Trigger circuit；
The relaxation oscillations type trigger circuit is made of unijunction transistor VT3, capacitance C3 and resistance R4, unijunction transistor VT3
One end of the emitter e of the model BT33 of selection, unijunction transistor VT3 and the collector and capacitance C3 of PNP transistor VT2
Be connected, the first base stage b1 of another termination circuit of capacitance C3 ground GND, unijunction transistor VT3 by resistance R4 with connecing circuit
The second base stage b2 of GND, unijunction transistor VT3 meet circuit anode VCC；
Signal timing cyclic switching electricity route time loop control switching switch Kn, bidirectional triode thyristor BCR and the red
Lamp HLr, green light HLg and amber light HLy compositions, the first base of the control pole G order junction transistors VT3 of bidirectional triode thyristor BCR
GND, the second plate T2 of bidirectional triode thyristor BCR connect red colored lamp to the first anode T1 of pole b1, bidirectional triode thyristor BCR with connecing circuit
One end of HLr, one end and amber light HLy of green light HLg one end, another termination time loop control of red colored lamp HLr cuts
The green light terminal g of another termination time loop control switching switch Kn of red colored lamp the terminal r, green light HLg of switch Kn is changed,
The amber light terminal y of another termination time loop control switching switch Kn of amber light HLy, time loop control switch switch Kn
Common end com meet 220V AC power zero lines L；
The 12V DC regulated power supply is by step-down capacitor C1, bleeder resistance R1, silicon rectifier diode D1, silicon voltage regulator diode
DW and filter capacitor C2 compositions, the voltage stabilizing value that silicon voltage regulator diode DW is used is 12V, and 220V AC power zero lines L connects decompression
One end of one end and bleeder resistance R1 of capacitance C1, the other end of step-down capacitor C1 and another termination silicon rectifier of bleeder resistance R1
The anode of diode D1, the cathode of silicon rectifier diode D1 connect the anode of the cathode and filter capacitor C2 of silicon voltage regulator diode DW,
The anode of silicon voltage regulator diode DW and cathode with the connecing circuit GND of filter capacitor C2；
The 12V DC positive pole of stabilized voltage supply is connected with circuit anode VCC, 12V DC regulated power supply cathode and circuit ground GND
And 220V AC power zero line sides N is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810398495.6A CN108575035A (en) | 2018-04-28 | 2018-04-28 | Light emission luminance with environmental change traffic lights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810398495.6A CN108575035A (en) | 2018-04-28 | 2018-04-28 | Light emission luminance with environmental change traffic lights |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108575035A true CN108575035A (en) | 2018-09-25 |
Family
ID=63575384
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810398495.6A Withdrawn CN108575035A (en) | 2018-04-28 | 2018-04-28 | Light emission luminance with environmental change traffic lights |
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| Country | Link |
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| CN (1) | CN108575035A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112950967A (en) * | 2019-11-26 | 2021-06-11 | 云南金隆伟业电子有限公司 | Road traffic signal lamp panel with light sensing and brightness control functions |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106102278A (en) * | 2016-07-29 | 2016-11-09 | 吴圣铎 | Brightness flop is with the sensitive street lamp of environmental change |
-
2018
- 2018-04-28 CN CN201810398495.6A patent/CN108575035A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106102278A (en) * | 2016-07-29 | 2016-11-09 | 吴圣铎 | Brightness flop is with the sensitive street lamp of environmental change |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112950967A (en) * | 2019-11-26 | 2021-06-11 | 云南金隆伟业电子有限公司 | Road traffic signal lamp panel with light sensing and brightness control functions |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180925 |
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| WW01 | Invention patent application withdrawn after publication |