CN106973474A - A kind of street lighting electric power system based on PWM light-adjusting modules - Google Patents
A kind of street lighting electric power system based on PWM light-adjusting modules Download PDFInfo
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- CN106973474A CN106973474A CN201710228694.8A CN201710228694A CN106973474A CN 106973474 A CN106973474 A CN 106973474A CN 201710228694 A CN201710228694 A CN 201710228694A CN 106973474 A CN106973474 A CN 106973474A
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- pwm
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- electric power
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- 238000004891 communication Methods 0.000 claims abstract description 24
- 230000005611 electricity Effects 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- 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
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention discloses a kind of street lighting electric power system based on PWM light-adjusting modules, including：Mains electricity input end；Streetlight monitoring center；Centralized Controller, it is communicatively connected to streetlight monitoring center；At least one 485 light adjusting controller, it includes the communication module for being communicatively connected to the power module of mains electricity input end, the light modulation main control chip and PWM dimming driving circuits of power module being communicatively connected to respectively and light modulation main control chip is communicatively connected to；Several streetlamp control terminals；Each streetlamp control terminal is communicatively connected to PWM dimming driving circuits；Wherein, light modulation main control chip is communicatively connected to PWM dimming driving circuits；Centralized Controller is connected to the communication module of at least one 485 light adjusting controller by a RS485 bus communication.The street lighting electric power system based on PWM light-adjusting modules that the present invention is provided, while PWM light modulations are realized to street lamp, with stronger load capacity.
Description
Technical field
The present invention relates to street lighting power supply technique field, it is more particularly related to which a kind of dim mould based on PWM
The street lighting electric power system of block.
Background technology
Under the main trend of municipal road lamp intelligent development, all newly-built intelligent illumination system demonstration pilot project of many provinces and cities.
But, because financial budget is also not covered with the street lamp illumination system transformation in whole city, so quite a few illuminator
Old managing and control system is also continued to use, or even some local light fixtures have been replaced by the LED lamp of tunable optical, but be due to fund reason
It is not updated to intelligentized illumination management system.Therefore, how low cost, advantageously traditional 485 street lightings are controlled
System progress is engineered, intelligentized street lighting power supply management system is updated to, with great economic implications.
The content of the invention
For weak point present in above-mentioned technology, the present invention provides a kind of street lighting based on PWM light-adjusting modules
Electric power system, while PWM light modulations are realized to street lamp, with stronger load capacity.
In order to realize that, according to object of the present invention and further advantage, the present invention is achieved through the following technical solutions：
The present invention provides a kind of street lighting electric power system based on PWM light-adjusting modules, including：
Mains electricity input end；
Streetlight monitoring center；
Centralized Controller, it is communicatively connected to the streetlight monitoring center；
At least one 485 light adjusting controller, it includes being communicatively connected to the power module of the mains electricity input end, led to respectively
Letter is connected to the light modulation main control chip and PWM dimming driving circuits of the power module and is communicatively connected to the light modulation master control
The communication module of chip；And,
Several streetlamp control terminals；Each streetlamp control terminal is communicatively connected to the PWM dimming driving circuits；
Wherein, the light modulation main control chip is communicatively connected to the PWM dimming driving circuits；The Centralized Controller passes through
One RS485 bus communication is connected to the communication module of at least one 485 light adjusting controller.
Preferably, a PWM dimming driving circuit includes at least two PWM dimming interfaces, and each PWM is adjusted
Optical interface is communicatively connected to the streetlamp control terminal.
Preferably, the operating voltage of the PWM dimming interfaces is 0-10V.
Preferably, each PWM dimming interfaces are communicatively connected to 255 streetlamp control terminals, each described
The light modulation internal resistance of streetlamp control terminal is more than 10k Ω.
Preferably, the light modulation main control chip is STC12C5616AD series monolithics.
Preferably, the communication module includes MAX485ESA chips.
The present invention at least includes following beneficial effect：
The street lighting electric power system based on PWM light-adjusting modules that the present invention is provided, Centralized Controller passes through a RS485
Bus communication is connected to the communication module of at least one 485 light adjusting controller, and each streetlamp control terminal is communicatively connected to PWM tune
Light drive circuit, while PWM light modulations are realized to street lamp, with stronger load capacity, saves energy consumption.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
The communication scheme for the street lighting electric power system based on PWM light-adjusting modules that Fig. 1 provides for the present invention；
In figure：
10- mains electricity input end；20- streetlight monitorings center；30- Centralized Controllers；
40-485 light adjusting controllers；
41- power modules；42- dims main control chip；43-PWM dimming driving circuits；
431-PWM dimming interfaces；44- communication modules；
50- streetlamp control terminals；
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded from one or many
The presence or addition of individual other elements or its combination.
As shown in figure 1, the present invention provides a kind of street lighting electric power system based on PWM light-adjusting modules, including：Civil power is defeated
Enter end 10, streetlight monitoring center 20, Centralized Controller 30, at least one 485 light adjusting controller 40 and several Street lamps controls
Terminal 50.Centralized Controller 30 is communicatively connected to streetlight monitoring center 20.485 light adjusting controllers 40 include being communicatively connected to civil power
The power module 41 of input 10, the light modulation main control chip 42 that power module 41 is communicatively connected to respectively and PWM light modulation driving electricity
Road 43 and the communication module 44 for being communicatively connected to light modulation main control chip 42.Each streetlamp control terminal 50 is communicatively connected to PWM
Dimming driving circuit 43.
In above-mentioned embodiment, power module 41 respectively dims main control chip 42 by being connected to mains electricity input end 10
And PWM dimming driving circuits 43 are powered.Light modulation main control chip 42 is communicatively connected to PWM dimming driving circuits 43, and PWM light modulations are driven
Dynamic circuit 43 is communicatively connected to streetlamp control terminal 50, so as to realize PWM of the light modulation main control chip 42 to streetlamp control terminal 50
Light modulation, is Intelligent road lamp lighting power supply system by traditional street lighting power supply management system upgrade while saving energy consumption.
Centralized Controller 30 is connected to the communication module 44 of at least one 485 light adjusting controller 40 by a RS485 bus communication, i.e.,
One Centralized Controller 30 can be managed by a RS485 bus to the light modulation of multiple 485 light adjusting controllers 40, be improved
The load capacity of system, is adapted to long-distance transmissions, and signal attenuation is small.When needing repairing and transforming, dismounting is also facilitated.
As a kind of embodiment, a PWM dimming driving circuit 43 includes at least two PWM dimming interfaces 431,
The operating voltage of each PWM dimming interfaces is 0-10V, and each PWM dimming interfaces 431 are communicatively connected to streetlamp control terminal 50,
The streetlamp control terminal 50 for communicating connection by each 431 pairs of PWM dimming interfaces is dimmed；And at least two PWM
It is independent mutually between dimming interface 431, be independent of each other, therefore, tune of multiple PWM dimming interfaces 431 to streetlamp control terminal 50
It is separate between light, be independent of each other.As a preference of the present invention, a PWM dimming driving circuit 43 includes four PWM light modulations
Interface 431, improves the load capacity of system.
As for the load capacity of each PWM dimming interfaces 431, it can specifically be defined as, each PWM dimming interfaces 431 lead to
Letter, which is connected to 255 loads, the light modulation internal resistances that each load, is more than 10k Ω, more specifically, i.e. each PWM dimming interfaces 431
Load capacity can be communicatively connected to 255 streetlamp control terminals 50, each streetlamp control terminal 50 light modulation internal resistance it is big
In 10k Ω, it can be seen that, whole system connects at least one by a Centralized Controller 30 through a RS485 bus communication
Light adjusting controller 40, each light adjusting controller 40 have at least two PWM dimming interfaces 431, each PWM dimming interfaces 431 again
Several streetlamp control terminals 50 are may be communicatively coupled, so that with higher load capacity.
As a preference of the present invention, light modulation main control chip 42 is STC12C5616AD series monolithics.STC12C5616AD
Series monolithic has high speed/low-power consumption/superpower jamproof feature, instruction code completely compatible traditional 8051, but speed is fast
8-12 times；MAX810 Special reset circuits are internally integrated, with good antijamming capability.
As a preference of the present invention, communication module 41 include MAX485ESA chips, its maximum transmission rate be 10Mbps,
Maximum transmission distance standard value is 4000 feet (actually up to 3000 meters).MAX485ESA chips are the RS485 of a standard
Transceiver, can only carry out semiduplex communication, include an output driver and a signal receiver, MAX485ESA chips
With RS485 bus communications, the communication of Centralized Controller 30 and each 485 light adjusting controller 40 is realized.MAX485ESA chips have
Low power dissipation design, quiescent current is only 300uA.MAX485ESA has tri state output characteristics, when using MAX485ESA, bus
32 MAX485ESA chips can be at most connected simultaneously.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With.It can be applied to various suitable the field of the invention completely.Can be easily for those skilled in the art
Realize other modification.Therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (6)
1. a kind of street lighting electric power system based on PWM light-adjusting modules, it is characterised in that it includes：
Mains electricity input end；
Streetlight monitoring center；
Centralized Controller, it is communicatively connected to the streetlight monitoring center；
At least one 485 light adjusting controller, it includes being communicatively connected to the power module of the mains electricity input end, respectively communication link
It is connected to the light modulation main control chip and PWM dimming driving circuits of the power module and is communicatively connected to the light modulation main control chip
Communication module；And,
Several streetlamp control terminals；Each streetlamp control terminal is communicatively connected to the PWM dimming driving circuits；
Wherein, the light modulation main control chip is communicatively connected to the PWM dimming driving circuits；The Centralized Controller passes through one
RS485 bus communications are connected to the communication module of at least one 485 light adjusting controller.
2. the street lighting electric power system as claimed in claim 1 based on PWM light-adjusting modules, it is characterised in that described in one
PWM dimming driving circuits include at least two PWM dimming interfaces, and each PWM dimming interfaces are communicatively connected to the street lamp
Control terminal.
3. the street lighting electric power system as claimed in claim 2 based on PWM light-adjusting modules, it is characterised in that the PWM is adjusted
The operating voltage of optical interface is 0-10V.
4. the street lighting electric power system as claimed in claim 2 or claim 3 based on PWM light-adjusting modules, it is characterised in that Mei Gesuo
State PWM dimming interfaces and be communicatively connected to 255 streetlamp control terminals, the light modulation internal resistance of each streetlamp control terminal is big
In 10k Ω.
5. the street lighting electric power system as claimed in claim 1 based on PWM light-adjusting modules, it is characterised in that the light modulation
Main control chip is STC12C5616AD series monolithics.
6. the street lighting electric power system based on PWM light-adjusting modules as described in claim 1, it is characterised in that the communication
Module includes MAX485ESA chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710228694.8A CN106973474A (en) | 2017-04-10 | 2017-04-10 | A kind of street lighting electric power system based on PWM light-adjusting modules |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710228694.8A CN106973474A (en) | 2017-04-10 | 2017-04-10 | A kind of street lighting electric power system based on PWM light-adjusting modules |
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| CN106973474A true CN106973474A (en) | 2017-07-21 |
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| CN201710228694.8A Pending CN106973474A (en) | 2017-04-10 | 2017-04-10 | A kind of street lighting electric power system based on PWM light-adjusting modules |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153789A (en) * | 2020-09-26 | 2020-12-29 | 广东南控云图科技有限公司 | Adjustable street lamp management system and control method thereof |
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| US20100127642A1 (en) * | 2008-11-21 | 2010-05-27 | Shou-Shan Chen | Cluster control device of street lamp circuits |
| CN201667738U (en) * | 2009-06-04 | 2010-12-08 | 广州冠今电子科技有限公司 | Led illumination intelligent energy-saving control system |
| CN202019482U (en) * | 2011-03-16 | 2011-10-26 | 深圳茂硕电源科技股份有限公司 | One-way recommended standard (RS)-485 control light-emitting diode (LED) driving power supply system |
| CN202160310U (en) * | 2011-07-23 | 2012-03-07 | 李鸿 | Intelligent light modulation device for light modulation by LED street lamp according to ambient light |
| US20130073058A1 (en) * | 2011-09-16 | 2013-03-21 | Chao-Huang Wei | Smart Lighting Control System |
| CN205005301U (en) * | 2015-08-11 | 2016-01-27 | 扬州市金湛照明电器有限公司 | Led street lamp control system |
| CN206042470U (en) * | 2016-08-19 | 2017-03-22 | 重庆华虹仪表有限公司 | Solar street lamp dimmer circuit |
| CN206629316U (en) * | 2017-04-10 | 2017-11-10 | 安徽卓越电气有限公司 | A kind of street lighting electric power system based on PWM light-adjusting modules |
-
2017
- 2017-04-10 CN CN201710228694.8A patent/CN106973474A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100127642A1 (en) * | 2008-11-21 | 2010-05-27 | Shou-Shan Chen | Cluster control device of street lamp circuits |
| CN101572983A (en) * | 2009-06-04 | 2009-11-04 | 广州冠今电子科技有限公司 | Intelligent LED illumination energy-saving control system |
| CN201667738U (en) * | 2009-06-04 | 2010-12-08 | 广州冠今电子科技有限公司 | Led illumination intelligent energy-saving control system |
| CN202019482U (en) * | 2011-03-16 | 2011-10-26 | 深圳茂硕电源科技股份有限公司 | One-way recommended standard (RS)-485 control light-emitting diode (LED) driving power supply system |
| CN202160310U (en) * | 2011-07-23 | 2012-03-07 | 李鸿 | Intelligent light modulation device for light modulation by LED street lamp according to ambient light |
| US20130073058A1 (en) * | 2011-09-16 | 2013-03-21 | Chao-Huang Wei | Smart Lighting Control System |
| CN205005301U (en) * | 2015-08-11 | 2016-01-27 | 扬州市金湛照明电器有限公司 | Led street lamp control system |
| CN206042470U (en) * | 2016-08-19 | 2017-03-22 | 重庆华虹仪表有限公司 | Solar street lamp dimmer circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112153789A (en) * | 2020-09-26 | 2020-12-29 | 广东南控云图科技有限公司 | Adjustable street lamp management system and control method thereof |
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Application publication date: 20170721 |