CN108260265A - A kind of signal lamp adaptive equalization power supply - Google Patents
A kind of signal lamp adaptive equalization power supply Download PDFInfo
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- CN108260265A CN108260265A CN201810180326.5A CN201810180326A CN108260265A CN 108260265 A CN108260265 A CN 108260265A CN 201810180326 A CN201810180326 A CN 201810180326A CN 108260265 A CN108260265 A CN 108260265A
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- microcontroller
- power supply
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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
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to a kind of signal lamp adaptive equalization power supply, including external power supply, microcontroller, accumulator, power control circuit, input detecting circuit, memory, load output driving circuit；External power supply input is sequentially connected accumulator, power control circuit all the way；External power supply input another way is sequentially connected input detecting circuit, microcontroller, load output driving circuit, and the power control circuit is interconnected with microcontroller, microcontroller connection memory；Microcontroller control load output driving circuit.The present invention is previous ought identify whole or determines in the storage to memory of journey information, basis read out the whole information in memory or determined journey information and determines whether to compensate next time, realize that power-off preserves function, and judge that this is whole or determines journey information and result judgement is saved in memory as next basis for estimation again, it realizes study identification and once just adapts to whether current demand signal machine needs compensation function, realize adaptive equalization function.
Description
Technical field
The present invention relates to a kind of adaptive equalization power supplys, and in particular to and it is a kind of to preserve function using memory, realize power-off
Memory, accomplishes according to on-site signal machine situation, the signal lamp adaptive equalization power supply of self-adapting estimation compensation function.
Background technology
Some uses of currently known traffic lights, which are gone out, dodges triggering mode triggering countdown, that is, determines journey countdown, special
Point is that semaphore is worked using the glitch triggering countdown time system that goes out of 150~300ms, and is no signal output during the glitch that goes out
, this signal showed on classical signal lamp be a 150~300ms extinguishing, this signal lamp extinguishing performance can give
Pedestrian and vehicle bring error message, and when green light goes out sudden strain of a muscle, pedestrian and vehicle can be mistakenly considered blue flash and start and shift to an earlier date signal lamp
It gets redy to start off, when red light goes out sudden strain of a muscle, pedestrian and vehicle can be mistakenly considered red light and terminate and get redy to start off in advance signal lamp, give in this way
Traffic brings security risk, occurs compensation power supply in the market, realize determine journey go out glitch occur when compensation output, but should
Kind is to work Error Compensation occur on whole semaphore using the signal lamp performance of compensation power supply, is shown without the twinkle SM that goes out
Number red light turns Error Compensation during green light and occurs red green with bright, and during green light signals in first blue flash, because being mistakened as when goes out
Glitch and Error Compensation cause first time blue flash to be lost, hidden danger are brought to traffic safety.
Invention content
In view of the above-mentioned problems, it is a kind of using memory preservation function it is a primary object of the present invention to provide, realize power-off
Memory, accomplishes according to on-site signal machine situation, the signal lamp adaptive equalization power supply of self-adapting estimation compensation function.
The present invention is to solve above-mentioned technical problem by following technical proposals：A kind of signal lamp adaptive equalization electricity
Source, it is characterised in that：The signal lamp adaptive equalization power supply includes：External power supply, microcontroller, accumulator, power supply control
Circuit processed, input detecting circuit, memory, load output driving circuit.
External power supply input is sequentially connected accumulator, power control circuit all the way.
External power supply input another way is sequentially connected input detecting circuit, microcontroller, load output driving circuit, the electricity
Source control circuit is interconnected with microcontroller, microcontroller connection memory；Microcontroller control load output driving circuit.
In specific embodiments of the present invention, microcontroller is previous ought identify whole or determines journey information storage and arrives
In memory, basis read out the whole information in memory or determined journey information and determines whether to compensate next time, realized that power-off is protected
Deposit function, and judge that this is whole again or determine journey information and using result judgement be saved in memory as it is next judge according to
According to whether need compensation function, realize adaptive equalization function if realizing study identification and once just adapt to current demand signal machine.
In specific embodiments of the present invention, the memory can be EEPROM, FLASH.
In specific embodiments of the present invention, during a red light or green light signals for signal lamp, when red light or green
When modulating signal is opened, power supply obtains electric energy work, power work, and microcontroller obtains power supply output electric energy work, microcontroller identification
Either with or without the glitch that goes out less than 0.3 second in current demand signal, have, be judged as determining journey, be not judged as whole process then, memory is first
The use of preceding storage is first whole information, microcontroller is currently identify whole or determine the letter preserved in journey information and memory
Breath compares, if unanimously, be failure to actuate, conversely, it is inconsistent, it changes whole in memory or determines journey information, this, which goes out, gets out of the way
After beginning, microcontroller is according to the whole information read out in memory or determines journey information and determines whether to compensate, and reading is whole letter
Breath then controls uncompensation, and reading determines journey information and then controls compensation, wherein the electric energy during control compensation is by the energy storage electricity in power supply
Capacitive energy storage provides in road, realize dodge go out during maintain output, after red light or green light signals, power cut-off, in power supply
Energy storage in accumulator is consumed by microcontroller, until microcontroller power down is shut down, when next red light or green light are again turned on, and electricity
Microcontroller works in a manner described again in source, realizes adaptive equalization function.
The positive effect of the present invention is：Signal lamp adaptive equalization power supply provided by the invention, when previous knowledge
Not Chu Lai it is whole or determine the storage of journey information in memory, next time is believed according to reading out the whole information in memory or determine journey
Breath determines whether to compensate, and realizes that power-off preserves function, and judges that this is whole or determines journey information and result is judged to protect again
It is stored in memory as next basis for estimation, realizes study identification and once just adapt to whether current demand signal machine needs to compensate
Function realizes adaptive equalization function.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the circuit diagram of the present invention.
Fig. 3 is the program flow diagram of the present invention.
In Fig. 2 AC220 input P3, resistance R1, R2, R3, R4, R5, R7, R8, R9, R10, R11, R12, R14, R15, R16,
R17, R18, rectifier bridge BR1 insure resistance RF1, varistor RV1, safety X capacitance C1, safety Y capacitance C5, optocoupler U2, U3,
It is fast to restore diode D1, D2, Schottky diode D3, TVS pipe DZ1, voltage-stabiliser tube D4, LED light D5, capacitance C2, C3, C4,
C7, C8, C13, C14, C15, C16, common mode inductance L1, high frequency transformer T1, field-effect tube Q1, load output P2, programming port
P1, microcontroller U5, power supply chip U1, three terminal regulator U4.
Specific embodiment
Present pre-ferred embodiments are provided below in conjunction with the accompanying drawings, with the technical solution that the present invention will be described in detail.
Fig. 1 is the overall structure diagram of the present invention, as shown in Figure 1：Signal lamp adaptive equalization electricity provided by the invention
Source includes：External power supply, microcontroller, accumulator, power control circuit, input detecting circuit, memory, load output driving
Circuit；External power supply input is sequentially connected accumulator, power control circuit all the way；External power supply input another way is sequentially connected
Input detecting circuit, microcontroller, load output driving circuit, the power control circuit are interconnected with microcontroller, microcontroller connection
Memory；Microcontroller control load output driving circuit.External power supply in the present invention is selected as AC220V power supplys.
Fig. 2 is the circuit diagram of the present invention, as shown in Figure 2：External communication is electrically accessed AC220V input P3, and electricity passes through
Insuring resistance RF1 to rectifier bridge BR1, safety X capacitances C1 is realization filter action, when external input voltage is excessively high, varistor
RV1 clampers are protected, and realize lightning protection effect, and electric a-road-through of the externally input electricity after rectifier bridge BR1 rectifications is too fast extensive
To capacitance C2, C3, wherein capacitance C2, C3, common mode inductance L1 form filter circuit and realize filter function multiple diode D1, fast to restore
Diode D1 and capacitance C4 realizes electricity energy-storage function, when having electricity input, capacitance C4 storage electric energy, and when being inputted without electricity, capacitance
The electric energy of C4 storages can also maintain to go out dodge during the electric energy of load output and power supply itself work, power supply chip U1 obtains electric energy and opens
Beginning work, power supply chip U1 realize power control circuit, and resistance R7, R8 are the operating voltage range control electricity of power supply chip U1
Resistance, capacitance C7 are the power control capacitances of power supply chip U1, and power supply chip U1 is to realize power control function, TVS pipe DZ1 with it is fast
Restore diode D2 and form clamp circuit, absorb the high voltage after high frequency transformer T1 flybacks, safety Y capacitance C5 realizes that filtering is made
With low pressure electricity output after electricity is converted by high frequency transformer T1, low pressure electricity output electricity reaches electricity after Schottky diode D3
Holding C8, Schottky diode D3 plays one-way conduction, and capacitance C8 realizes voltage regulation filtering, and secondary electrical passes through R18 to VCC all the way,
Zener diode D4 is anti-overvoltage protection effect, and VCC is converted to microcontroller by capacitance C16, C15, C14, three terminal regulator U4
Operating voltage needed for U5, microcontroller U5 obtain electricity, start to work, and resistance R11, R12, which are realized, divides electric power output voltage
Output voltage supply monolithic machine testing afterwards, resistance R16 is to realize current detection function, single after having current flowing resistance R16
Piece machine U5 converses the electric current for flowing through resistance R16 by resistance R17 reading voltages, realizes electric power outputting current detection circuit,
Middle Q1 conducting resistances very little is ignored, if influencing that correction, resistance R1, R3, field-effect tube Q1, load output P2 can be calculated
Realize load output driving circuit, microcontroller U5 output high level when by resistance R1 after, field-effect tube Q1 conducting, microcontroller U5
Export low level when by resistance R1 after, field-effect tube Q1 high resistants, realize switched output circuits function, resistance R3 is field-effect tube
Absorption resistance after Q1 shutdowns, optocoupler U2, resistance R9, R10, R14 composition power feedback, microcontroller U5 is by detecting
By adjusting the low and high level state of PWM_CC pins after Current Voltage calculating, reached by resistance R9, R10 and adjust optocoupler U2's
Input current magnitude function, optocoupler U2 output terminals change, that is, realize and the working condition of power supply is fed back to power supply chip U1 therewith,
Power supply chip U1 adjusts power work situation according to feedback current, and the feedback of optocoupler U2 more frequently realizes that work(is stablized in power supply output
Can, electric another way of the externally input electricity after rectifier bridge BR1 rectifications passes through resistance R4, R5 to optocoupler U3, resistance R2, capacitance
C13 forms input detecting circuit, after outside is linked into AC220V input P3, optocoupler U3 input conductings, and optocoupler U3 output conductings,
It is low level that resistance R2 connects performance with capacitance C13 centres to microcontroller, otherwise performance is high level, realizes that microcontroller U5 is detected
Outside either with or without electric input function, microcontroller U5 integrates eeprom memory, can store and determine journey or whole information, microcontroller
Whether U5 detection external electricals input to go out and get out of the way beginnings, determine journey or whole letter according to what microcontroller U5 integrated eeprom memory storage
Then breath controls whether that it is high level to open control RA5 pins, then controls and open field-effect tube Q1 conductings, safeguard that power supply exports,
It is on the contrary then control and close field-effect tube Q1 and close, power supply output is closed, realizes that power supply realizes compensation or uncompensation according to storage value
Output, when not being that the glitch that goes out then controls RA5 roots with input, input has electricity then to open the Q1 conductings of control field-effect tube, inputs nothing
It is electric then control field-effect tube Q1 shutdown conducting, programming port P1 is SCM program burning interface, for program download use, resistance
R15 and LED light D5 is that output refers to lamp function.
Fig. 3 is the program flow diagram of the present invention, microcontroller U5 program work principles is explained in conjunction with Fig. 3, at one
During red signal or green light signals, when signal starts, power supply obtains electric energy, power supply electrifying work, and microcontroller U5 obtains electricity
Source offer electric energy works, and the whole of self-contained storing devices storage is read after microcontroller U5 work or determines journey information, when appearance first time
After input disconnects, work is maintained due to power supply has capacitance C4 energy storage, the information if the read out memory storage is whole information, then
Microcontroller U5 control control field-effect tube Q1 conducting shutdown outputs, reach output and follow input, if the read out memory storage
Information is to determine journey information then to open maintenance output, reaches compensation output function, while start timing after input disconnects in first time,
Be again turned on if occurring input after input disconnects for the first time, timing stops, and calculates timing time, if count the time is little
In 0.3 second, then it was to determine journey information to judge this, and the information stored in reading memory before compares, if consistent
It does not make an amendment, if it is inconsistent, storage value is determines journey in modification memory；, whereas if count the time be more than 0.3 second or
It was opened more than 1 second without input again, then it is whole information to judge this, and is done pair in reading storage value in memory before
Than not made an amendment if consistent, if it is inconsistent, storage value is whole process in modification memory；When microcontroller judges to input
Signal control output and timing judge whether after changing memory storage value process, behind input signal variation do not do and sentence
Disconnected, microcontroller U5 is continued to run with, and after red light or green light signals, power supply power-fail, power capacitor C4 energy storage maintains the short time
Microcontroller works, and microcontroller U5 consumes electric energy until power down shutdown, since the middle information power down for being saved in memory will not change
It disappears, can be that task make a decision foundation under microcontroller U5, when on green light again or red signal incoming call, microcontroller U5 repetitions
The process of stating carries out judging that input signal control output and timing judge whether to change memory storage value, has reached supply self adaptation
Judge input signal whether when compensate output function.
Microcontroller self-contained storing devices of the present invention previous ought identify whole or determine the storage of journey information to memory
In, basis read out the whole information in memory or determined journey information and determines whether to compensate next time, realized that power-off preserves function,
And judge that this is whole or determines journey information and result judgement is saved in memory as next basis for estimation again, it realizes
Study identification once just adapts to whether current demand signal machine needs compensation function, realizes adaptive equalization function.
The basic principles, main features and the advantages of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. a kind of signal lamp adaptive equalization power supply, it is characterised in that：The signal lamp adaptive equalization power supply includes：It is external
Power supply, microcontroller, accumulator, power control circuit, input detecting circuit, memory, load output driving circuit；
External power supply input is sequentially connected accumulator, power control circuit all the way；
External power supply input another way is sequentially connected input detecting circuit, microcontroller, load output driving circuit, the power supply control
Circuit processed is interconnected with microcontroller, microcontroller connection memory；Microcontroller control load output driving circuit.
2. signal lamp adaptive equalization power supply according to claim 1, it is characterised in that：Microcontroller handle previous ought identify
Come whole determine the storage of journey information in memory, and basis read out the whole information in memory or determined journey information and sentences next time
It is disconnected whether to compensate, realize that power-off preserves function, and judge that this is whole or determines journey information and result judgement is saved in again
As next basis for estimation in memory, realize study identification and once just adapt to whether current demand signal machine needs to compensate work(
Can, realize adaptive equalization function.
3. signal lamp adaptive equalization power supply according to claim 1, it is characterised in that：The memory can be
EEPROM、FLASH。
4. signal lamp adaptive equalization power supply according to claim 1, it is characterised in that：Signal lamp a red light or
During green light signals, when red light or green light signals unlatching, power supply obtains electric energy work, and power work, microcontroller obtains power supply
Electric energy work is exported, microcontroller is identified in current demand signal either with or without the glitch that goes out less than 0.3 second, is had, is judged as determining journey, not have
Have, be judged as whole process, memory is whole information first using preceding storage, and microcontroller is the whole process currently identified or determines
Journey information is compared with the information preserved in memory, if unanimously, be failure to actuate, conversely, it is inconsistent, it changes in memory
It is whole or determine journey information, this goes out get out of the way the beginning after, microcontroller is according to the whole information read out in memory or determines journey information and sentences
Whether disconnected to compensate, reading is that whole information then controls uncompensation, and reading determines journey information and then controls compensation, wherein the control compensation phase
Between electric energy provided by capacitive energy storage in the accumulator in power supply, realize dodge go out during maintain output, when red light or green light are believed
After number, power cut-off, the energy storage in power supply in accumulator is consumed by microcontroller, until microcontroller power down is shut down, instantly
When secondary red light or green light are again turned on, microcontroller works in a manner described again in power supply, realizes adaptive equalization function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810180326.5A CN108260265A (en) | 2018-03-05 | 2018-03-05 | A kind of signal lamp adaptive equalization power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810180326.5A CN108260265A (en) | 2018-03-05 | 2018-03-05 | A kind of signal lamp adaptive equalization power supply |
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| Publication Number | Publication Date |
|---|---|
| CN108260265A true CN108260265A (en) | 2018-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810180326.5A Pending CN108260265A (en) | 2018-03-05 | 2018-03-05 | A kind of signal lamp adaptive equalization power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109618465A (en) * | 2019-01-21 | 2019-04-12 | 上海乾丰新能源科技有限公司 | A kind of LED changeable driveway programmable power supply |
-
2018
- 2018-03-05 CN CN201810180326.5A patent/CN108260265A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109618465A (en) * | 2019-01-21 | 2019-04-12 | 上海乾丰新能源科技有限公司 | A kind of LED changeable driveway programmable power supply |
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