CN206100578U - Traffic signal lamp luminance environment self -adaptive controller - Google Patents
Traffic signal lamp luminance environment self -adaptive controller Download PDFInfo
- Publication number
- CN206100578U CN206100578U CN201621110838.7U CN201621110838U CN206100578U CN 206100578 U CN206100578 U CN 206100578U CN 201621110838 U CN201621110838 U CN 201621110838U CN 206100578 U CN206100578 U CN 206100578U
- Authority
- CN
- China
- Prior art keywords
- signal lamp
- adaptive controller
- base circuit
- time base
- power supply
- 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.)
- Expired - Fee Related
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Classifications
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- 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 utility model discloses a traffic signal lamp luminance environment self -adaptive controller, including photoelectric sensor, power and signal lamp load, photoelectric sensor is connected with signal processor spare, time -base circuit, switch tube and signal lamp load order in proper order, the power -on is crossed the switch tube and is connected with the signal lamp load, power -on overvoltage detection device with time -base circuit connects. The utility model discloses the system architecture is simpler, not only can make signal lamp luminance along with the change of environment automatically regulated, also can the luminance of automatic stabilization signal lamp, prevent that it from changing along with mains voltage's change.
Description
Technical field
The utility model belongs to field of traffic control, more particularly to a kind of traffic lights lightness environment Self Adaptive Control
Device.
Background technology
Traffic lights, play very important effect in traffic system.And the traffic lights that used at present are more
For constant brightness, in the case of so on daytime, sunlight is preferable, luminance shortage, so that cannot clearly recognize；And night, brightness
It is bright, not only power consumption, and discomfort can be caused to drivers and pedestrians' eyes, cause light pollution.
Prior art can be by brightness controller come the brightness of regulation traffic signal lamp.Its system is mainly sensed by light intensity
Device, single-chip microcomputer, PLD, PWM dim signal generators, dim signal coupling driving power supply and signal lamp are suitable successively
Sequence connects；Power supply is connected by dim signal coupling driving power supply with signal lamp.So its system architecture is complicated, and in power supply electricity
In the case of buckling, its signal lamp brightness also can change therewith, it is impossible to stablize its brightness.
Therefore, how to solve the above problems, be the content to be studied of those skilled in the art.
The content of the invention
For the problems referred to above, it is more simple that the purpose of this utility model is to provide a kind of system architecture, and being capable of automatic steady
Determine the traffic lights lightness environment adaptive controller of brightness.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of traffic lights lightness environment adaptive controller, including photoelectric sensor, power supply and signal lamp load, institute
State photoelectric sensor to be linked in sequence successively with signal processor, time base circuit, switching tube and signal lamp load, the power supply leads to
Cross switching tube to be connected with signal lamp load, the power supply is connected by voltage detection device with the time base circuit.
Further, the signal processor adopts operational amplifier, model LM324.The time base circuit adopts 555
Time base circuit, to export PWM ripples.Switching tube model IRS640.The voltage detection device is examined using supply voltage
Survey sample resistance.
The utility model has the beneficial effect that：
The utility model is except can be with the change of environment light and shade in addition to automatic regulating signal lamp brightness, additionally it is possible to automatically
Stabilization signal lamp brightness, changes preventing its change with supply voltage, and whole system structure is simpler.
Description of the drawings
Fig. 1 is signal lamp brilliance control principle schematic of the present utility model.
Fig. 2 is signal lamp intednsity circuit figure of the present utility model.
In accompanying drawing, 1, power supply；2nd, operational amplifier；3rd, photo resistance；4th, 555 time base circuit；5th, switching tube；6th, signal lamp
Load.
Specific embodiment
Below in conjunction with the accompanying drawings, preferred embodiment is elaborated.
As shown in figure 1, this kind of signal lamp lightness environment adaptive controller includes photoelectric sensor, power supply and signal lamp
Load, the photoelectric sensor is linked in sequence successively with signal processor, time base circuit, switching tube and signal lamp load, institute
State power supply to be connected with signal lamp load by switching tube, the power supply is connected by voltage detection device with the time base circuit.
Further, the signal processor adopts operational amplifier, model LM324.The time base circuit adopts 555
Time base circuit, to export PWM ripples.Switching tube model IRS640.The voltage detection device is examined using supply voltage
Survey sample resistance.
Signal lamp intednsity circuit as shown in Figure 2, the system adopts the method for controlling switch of variable impulse width.Wherein
555 time base circuit 4 produces PWM ripples, and photo resistance 3 obtains environmental light intensity signal, and the light intensity signal is amplified by operational amplifier 2
Afterwards, the PWM ripples vibration pulsewidth of 555 time base circuits, and then adjustment signal lamp brightness are controlled.Switching tube realizes the "ON" of whole circuit
With "Off".
When daylight environment brightness is higher, the resistance of photo resistance 3 reduces, and the voltage of N points declines in circuit, Jing operation amplifiers
After device 2 reversely amplifies, Q point voltages are raised in circuit, now 555 vibration pulse duty cycle increase, and signal lamp brightness strengthens therewith.
When ambient brightness is dimmed, the resistance of photo resistance 3 is larger, and N point voltages are raised, and the voltage of the output of operational amplifier 2 declines, now
555 vibration pulse duty cycles constantly reduce with environmental light intensity, and signal lamp brightness also weakens therewith.Resistance R5, resistance R7 are used for
Signal lamp brightness when setting evening or dark ambient light, resistance R8, resistance R9 are used to set daylight signal lamp brightness.
Because signal lamp power supply is from civil power, the rectification after transformer pressure-reducing is obtained.Signal can be made when power supply 1 fluctuates
Lamp load electric current has a greater change, and the direct current power source voltage being carried on signal lamp load 6 also has large change.Supply voltage
Detection sample resistance R1 and resistance R2 coordinates for setting the in-phase end reference voltage of operational amplifier 2.When the voltage of power supply 1 is raised
When, the in-phase end P point voltages of operational amplifier 2 are raised, and Q point voltages decline, and now 555 vibration pulsewidths diminish, signal lamp current
Decline；When the power supply voltage drops, the in-phase end P point voltages of operational amplifier 2 decline, and Q point voltages rise, now 555 vibration
Pulsewidth becomes big, and signal lamp current rises；When mains voltage variations, by selecting suitable resistance R1, the resistance R2 parameters can be with
The dutycycle of 555 output pulses is automatically adjusted, so that load obtains electric current adjust automatically, signal lamp has been reached in supply voltage
Brightness stability control during change.
Those listed above is a series of to describe the tool for being only for feasibility embodiment of the present utility model in detail
Body illustrates that they are simultaneously not used to limit protection domain of the present utility model, all to be made without departing from the utility model skill spirit
Equivalent implementations or change should be included within protection domain of the present utility model.
Claims (5)
1. a kind of signal lamp lightness environment adaptive controller, including photoelectric sensor, power supply and signal lamp load, its feature
It is：The photoelectric sensor is linked in sequence successively with signal processor, time base circuit, switching tube and signal lamp load, institute
State power supply to be connected with signal lamp load by switching tube, the power supply is connected by voltage detection device with the time base circuit.
2. a kind of signal lamp lightness environment adaptive controller as claimed in claim 1, is characterized in that：The signal transacting
Device adopts operational amplifier, model LM324.
3. a kind of signal lamp lightness environment adaptive controller as claimed in claim 1, is characterized in that：The voltage detecting
Device detects sample resistance using supply voltage.
4. a kind of signal lamp lightness environment adaptive controller as claimed in claim 1, is characterized in that：The time base circuit
Using 555 time base circuits, to export PWM ripples.
5. a kind of signal lamp lightness environment adaptive controller as claimed in claim 1, is characterized in that：The switch cast
Number be IRS640.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621110838.7U CN206100578U (en) | 2016-10-11 | 2016-10-11 | Traffic signal lamp luminance environment self -adaptive controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621110838.7U CN206100578U (en) | 2016-10-11 | 2016-10-11 | Traffic signal lamp luminance environment self -adaptive controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206100578U true CN206100578U (en) | 2017-04-12 |
Family
ID=60413541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621110838.7U Expired - Fee Related CN206100578U (en) | 2016-10-11 | 2016-10-11 | Traffic signal lamp luminance environment self -adaptive controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206100578U (en) |
-
2016
- 2016-10-11 CN CN201621110838.7U patent/CN206100578U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20171011 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |