CN103024997B - Based on the LED lamp driving power of power line carrier - Google Patents
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Abstract
Based on a LED lamp driving power for power line carrier, comprise driving power module, sampling module, lamp control module and power line carrier module; Described lamp control module judges the electrical quantity that described sampling module is sampled and environmental parameter whether in normal range (NR), if not, then send abnormality alarm, and the output voltage controlling described driving power module quits work to control light fixture; If, then control described driving power module output normal voltage normally to work to control light fixture, receive the control signal of described power line carrier module simultaneously, the control signal of described power line carrier module is for controlling the operating state of described lamp control module, and described power line carrier module also monitors the operating state of described lamp control module.
Description
Technical field
The present invention relates to light fixture control technology, particularly relate to the LED lamp driving power based on power line carrier.
Background technology
Because LED illumination environmental protection, power savings advantages are obvious, current various countries are just actively promoting LED illumination plan.LED street lamp driving power is one of key component forming LED street lamp.A LED street lamp configures a LED street lamp driving power.Along with the rise of LED illumination, be increasingly strong to the dimming energy-saving of LED street lamp and the demand of intelligent management.Compare with traditional lighting technology, it is energy-conservation that LED illumination has been carried out reaching to a certain degree.But common LED drive power cannot regulate LED lamp brightness, brightness of illumination control cannot be carried out as required.Especially, when at dead of night without pedestrian and vehicle, street lamp also presses normal brightness in illumination.Both waste electric energy, also affect the street lamp life-span; And in tunnel street lighting, whether having car process, brightness as usual, causes great waste.
Traditional LED drive power does not possess street lamp condition monitoring simultaneously, and existing lighting installation management work mainly adopts artificial inspection pattern.Not only workload is large, also waste of manpower, material resources, financial resources.Fault reports and citizen's complaint according to being mainly derived from tour personnel, lacks initiative, promptness and reliability, can not monitor the street lamp operation conditions of whole city in real time, accurately, all sidedly, lack effective fault pre-alarming mechanism.
Mode of turning off the light falls behind, and current Street lamps control, also rests on manual, light-operated, clock mode.Affect by season, weather and artificial factor, automatic management level is low, does not work when often this is bright, does not go out when this goes out, and very easily causes energy waste, adds financial burden.Regulate manipulation scarce capacity: cannot the remotely modifying switch lamp time, can not according to actual conditions (change in weather, major event, red-letter day) in time school time and the amendment switch lamp time, be not suitable with present diversified management expectancy.
Summary of the invention
Based on this, provide a kind of real-time monitoring, the intelligentized LED lamp driving power based on power line carrier.
Based on a LED lamp driving power for power line carrier, comprise driving power module, sampling module, lamp control module and power line carrier module; Described driving power module is used for being connected with light fixture and electrical network, with described driving power model calling while of described sampling module and described lamp control module, described sampling module is connected with described lamp control module, described lamp control module is connected with described power line carrier module, and described power line carrier module is also for being connected with electrical network;
Described driving power module is used for providing power supply to light fixture;
Described electrical quantity and environmental parameter for electrical quantity in described driving power module and the environmental parameter of sampling, and are transferred to described lamp control module by described sampling module;
The output voltage of the electrical quantity that described lamp control module is sampled according to described sampling module and environment parameter control driving power module is to control the operating state of light fixture;
The carrier signal that described power line carrier module is used for electrical network exports carries out modulation and demodulation, and controls the operating state of lamp control module according to the carrier signal received;
Wherein, described lamp control module judges the electrical quantity that described sampling module is sampled and environmental parameter whether in normal range (NR), if not, then send abnormality alarm, and the output voltage controlling described driving power module quits work to control light fixture; If, then control described driving power module output normal voltage normally to work to control light fixture, receive the control signal of described power line carrier module simultaneously, the control signal of described power line carrier module is for controlling the operating state of described lamp control module, described power line carrier module reads electrical quantity and the environmental parameter of sampling module transmission simultaneously, monitor the operating state of described lamp control module, and monitor input electrical quantity and the environmental parameter of light fixture.
Wherein in an embodiment, described driving power module comprises power factor correction module, power conversion module, feedback comparison module and constant current/constant voltage circuit module; Described power factor correction module is used for being connected with electrical network, described power factor correction module is also connected with described power conversion module, described power conversion module is connected with described feedback comparison module and described constant current/constant voltage circuit module simultaneously, and described feedback comparison module is also connected with described constant current/constant voltage circuit module;
Described power factor correction module for adjusting the waveform of input current, and compensates the phase difference of current/voltage, keeps input current and input voltage homophase;
Described power conversion module is used for DC power supply high for power factor to be transformed in check specified high frequency square wave pulse voltage;
Described constant current/constant voltage circuit module is for exporting constant electric current and constant voltage;
Described feedback comparison module is used for the output signal output feedback signal according to constant current/constant voltage circuit module, controls the duty ratio of described power conversion module.
Wherein in an embodiment, described power conversion module comprises electronic switch and high frequency transformer, and described electronic switch is by the size of adjustment switching signal Duty ratio control output current.
Wherein in an embodiment, also comprise power line carrier coupling module, described power line carrier coupling module is used for being connected with electrical network, described power line carrier coupling module is also connected with described power line carrier module, and described power line carrier coupling module is used for isolated high-voltage electrical network and power line carrier modulation signal or power line carrier restituted signal are coupled to electrical network or power line carrier module.
Wherein in an embodiment, also comprise accessory power supply, described accessory power supply is connected with described power line carrier module, and described accessory power supply is used for powering to described power line carrier module.
Wherein in an embodiment, described power line carrier module also for receive electrical network coupling come in timing or real time control command, control command is sent to described lamp control module by described power line carrier module, described lamp control module controls the output voltage of described driving power module according to described control command, and described lamp control module feeds back to described power line carrier module by according to the practice condition of described control command.
Wherein in an embodiment, described electrical quantity comprises electric current, voltage, power and power factor.
Wherein in an embodiment, described environmental parameter comprises temperature and humidity.
Wherein in an embodiment, described lamp control module is by controlling the output voltage of described driving power module to control the lighting of described light fixture, to extinguish and brightness.
The above-mentioned LED lamp driving power based on power line carrier controls the output voltage of driving power module by lamp control module, to control the lighting of LED lamp, to extinguish and brightness.Simultaneously, power line carrier module controls further to lamp control module, namely power line carrier module controls the operating state of lamp control module, read electrical quantity and the environmental parameter of sampling module transmission simultaneously, and monitor the operating state of lamp control module, to realize input electrical quantity and the environmental parameter of monitoring light fixture, thus control lamp control module more accurately to the state of a control of light fixture, and then realize the intelligentized control method to LED lamp driving power.
Accompanying drawing explanation
Fig. 1 is the module map of the LED lamp driving power based on power line carrier.
Embodiment
As shown in Figure 1, be the module map of the LED lamp driving power based on power line carrier.Based on a LED lamp driving power for power line carrier, comprise driving power module 10, sampling module 20, lamp control module 30 and power line carrier module 40.Driving power module 10 is for being connected with light fixture and electrical network, sampling module 20 is connected with driving power module 10 with lamp control module 30 simultaneously, sampling module 20 is connected with lamp control module 30, lamp control module 30 is connected with power line carrier module 40, and power line carrier module 40 is also for being connected with electrical network.
Driving power module 10 is for providing power supply to light fixture.
Electrical quantity and environmental parameter for electrical quantity in driving power module 10 and the environmental parameter of sampling, and are transferred to lamp control module 30 by sampling module 20.
The output voltage of the electrical quantity that lamp control module 30 is sampled according to sampling module 20 and environment parameter control driving power module 10 is to control the operating state of light fixture.
Power line carrier module 40 carries out modulation and demodulation for the carrier signal exported electrical network, and controls the operating state of lamp control module 30 according to the carrier signal received.
Wherein, lamp control module 30 judges the electrical quantity that sampling module 20 is sampled and environmental parameter whether in normal range (NR), if not, then send abnormality alarm, and the output voltage controlling driving power module 10 quits work to control light fixture; If, then control driving power module 10 to export normal voltage and normally work to control light fixture, receive the control signal of power line carrier module 40 simultaneously, the control signal of power line carrier module 40 is for controlling the operating state of lamp control module 30, and power line carrier module 40 also monitors the operating state of lamp control module 30.
LED lamp requires higher to driving power, such as, then needs driving power to export multiple constant output current value to lamp light-regulating.For the lighting and extinguish of LED lamp controlling outdoor application, general access and the disconnection adopting the driving power controlling LED lamp.
Driving power module 10 comprises power factor correction module 102, power conversion module 104, feedback comparison module 106 and constant current/constant voltage circuit module 108; Power factor correction module 102 is for being connected with electrical network, power factor correction module 102 is also connected with power conversion module 104, power conversion module 104 is connected with feedback comparison module 106 and constant current/constant voltage circuit module 108 simultaneously, and feedback comparison module 106 is also connected with constant current/constant voltage circuit module 108.Wherein, power conversion module 104 is connected with lamp control module 30, and constant current/constant voltage circuit module 108 is connected with sampling module 20.
In alternating current circuit, the cosine of the phase difference (Φ) between voltage and electric current is called power factor, represents with symbol cos Φ, and numerically, power factor is the ratio of active power and apparent power, i.e. cos Φ=P/S.The size of power factor is relevant with the load character of circuit, and the power factor as the resistive load such as incandescent lamp bulb, resistance furnace is 1, and the circuit power factor generally with inductive load is all less than 1.Power factor is the important technical data of of electric power system.Power factor weighs a coefficient of electric equipment efficiency.Power factor is low, illustrates that circuit is used for the reactive power of alternating magnetic field conversion greatly, thus reduces the utilance of equipment, add line powering loss.So power supply department has certain standard-required to by the power factor of electric unit.
Power factor correction module 102 for adjusting the waveform of input current, and compensates the phase difference of current/voltage, keeps input current and input voltage homophase.
Power conversion module 104 is for being transformed in check specified high frequency square wave pulse voltage by DC power supply high for power factor.
Constant current/constant voltage circuit module 108 is for exporting constant electric current and constant voltage;
Feedback comparison module 106, for the output signal output feedback signal according to constant current/constant voltage circuit module 108, controls the duty ratio of power conversion module 104.
Power conversion module 104 comprises electronic switch and high frequency transformer, and electronic switch is by the size of adjustment switching signal Duty ratio control output current.
The operation principle of driving power module 10 is particularly: the waveform of the input current of power factor correction module 102 pairs of electrical networks adjusts, the phase place of current/voltage is compensated simultaneously, thus reach higher power factor, keep input current and input voltage homophase.The input current corrected via power factor correction module 102 and input voltage are input to power conversion module 104.Power conversion module 104 comprises electronic switch and high frequency transformer, and the power number of changing module 104 is for converting the in check high frequency square wave pulse voltage meeting LED lamp and require to by direct voltage.Constant current/constant voltage circuit module 108 adopts the mode of first voltage stabilizing constant current again, for LED lamp provides constant current to input.For adapting to load needs, voltage will ensure within the specific limits, by using constant current/constant voltage circuit module 108 regulation output voltage and current, makes output voltage and current stabilization to reach the driving requirement of LED lamp.
In practice, the output of constant current/constant voltage circuit module 108 generally there will be deviation under the impact of environment factor and system factor, therefore, add between constant current/constant voltage circuit module 108 and power conversion module 104 and feed back comparison module 106, for correcting the output of constant current/constant voltage circuit module 108, make the output voltage of constant current/constant voltage circuit module 108 and electric current more accurately stable.
Sampling module 20, for the output of driving power module 10 of sampling, is specially, the output voltage of sampling driving power module 10, electric current, power, power factor and temperature etc.
Lamp control module 30 controls the operating state of light fixture according to the sampled result of sampling module 20.Such as, the magnitude of voltage of sampling when sampling module 20 is far above the normal working voltage of light fixture, then now there is overvoltage anomaly in light fixture, lamp control module 30 controls driving power module 10 and reduces output voltage and normally work to make LED lamp, or direct controlling and driving power module 10 not output voltage LED lamp is extinguished.
Power line carrier module 40 receives the carrier signal that electrical network sends, and carrier signal is sent to lamp control module 30, changes the operating state of lamp control module 30.Particularly, power line carrier module 40 is to the carrier signal received according to recombination data bag after the demodulation of electric line carrier communication, and by Packet Generation to lamp control module 30, wherein packet is control command.Lamp control module 30 performs interrupt routine after receiving the control command of power line carrier module 40, and the control procedure before namely interrupting, now controls the operating state of LED lamp according to the control command received.Namely by power line carrier module 40 receive electrical network be coupled come in real time or timing coutrol instruction, lamp control module 30 controls driving power module 10 and LED lamp according to real-time or timing coutrol instruction.The state performing control command is returned to power line carrier module 40 by lamp control module 30 simultaneously.
LED lamp driving power based on power line carrier also comprises accessory power supply 50, and accessory power supply 50 is connected with power line carrier module 40, and accessory power supply 50 is powered for giving power line carrier module 40.
LED lamp driving power based on power line carrier also comprises power line carrier coupling module 60, power line carrier coupling module 60 is for being connected with electrical network, power line carrier coupling module 60 is also connected with power line carrier module 40, and power line carrier coupling module 60 is for isolated high-voltage electrical network and power line carrier modulation signal or power line carrier restituted signal are coupled to electrical network or power line carrier module 40.
Power line carrier module 40 also for receive electrical network coupling come in timing or real time control command, control command is sent to lamp control module 30 by power line carrier module 40, lamp control module 30 controls the output voltage of driving power module 10 according to control command, and lamp control module 30 feeds back to power line carrier module 40 by according to the practice condition of control command.
Electrical quantity comprises electric current, voltage, power and power factor.
Environmental parameter comprises temperature and humidity.
Lamp control module 30 by the output voltage that controls driving power module 10 to control the lighting of light fixture, to extinguish and brightness.
The above-mentioned LED lamp driving power based on power line carrier controls the output voltage of driving power module 10 by lamp control module 30, to control the lighting of LED lamp, to extinguish and brightness.Simultaneously, power line carrier module 40 pairs of lamp control module 30 control further, namely power line carrier module 40 controls the operating state of lamp control module 30, read electrical quantity and the environmental parameter of sampling module 20 transmission simultaneously, and monitor the operating state of lamp control module 30, to realize input electrical quantity and the environmental parameter of monitoring light fixture, thus control the state of a control of lamp control module 30 pairs of light fixtures more accurately, and then realize the intelligentized control method to LED lamp.
The above-mentioned LED lamp driving power based on power line carrier possesses monitoring and remote monitoring ability in real time, can be realized the operation such as switch, light modulation of driving power module 10 by Long-distance Control, wherein light modulation is that the size of change output current to realize the adjustment of being in the light more.And possess perfect grouping, time control function based on the LED lamp driving power of power line carrier, the effect of secondary energy-saving can be reached.Because power line carrier technology itself occupy electrical network, a line is dual-purpose, without the need to wiring, cheap, easy construction.Based on this, employing power line carrier module 40 can by the Based Intelligent Control of sending controling instruction realization to LED lamp.Sampling module 20 can every electrical quantity of Real-time Collection driving power module 10 and environmental parameter, such as, and electric current, voltage, power and power factor etc.By the collection of the working condition indexs such as these electrical quantitys, the operating state analyzing driving power module 10 can be known, as situations such as overvoltage, under-voltage, overload, underload and damages.Lamp control module 30 judges the sampled result that sampling module 20 sends; if not in normal range (NR), then send abnormality alarm, early warning can be sent for the fault of system in time; and carry out starting corresponding protection mechanism according to fault state, guarantee the use safety of driving power module 10.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (9)
1. based on a LED lamp driving power for power line carrier, it is characterized in that, comprise driving power module, sampling module, lamp control module and power line carrier module; Described driving power module is used for being connected with light fixture and electrical network, with described driving power model calling while of described sampling module and described lamp control module, described sampling module is connected with described lamp control module, described lamp control module is connected with described power line carrier module, and described power line carrier module is also for being connected with electrical network;
Described driving power module is used for providing power supply to light fixture;
Described electrical quantity and environmental parameter for electrical quantity in described driving power module and the environmental parameter of sampling, and are transferred to described lamp control module by described sampling module;
The output voltage of the electrical quantity that described lamp control module is sampled according to described sampling module and environment parameter control driving power module is to control the operating state of light fixture;
The carrier signal that described power line carrier module is used for electrical network exports carries out modulation and demodulation, and controls the operating state of lamp control module according to the carrier signal received;
Wherein, described lamp control module judges the electrical quantity that described sampling module is sampled and environmental parameter whether in normal range (NR), if not, then send abnormality alarm, and the output voltage controlling described driving power module quits work to control light fixture; If, then control described driving power module output normal voltage normally to work to control light fixture, receive the control signal of described power line carrier module simultaneously, the control signal of described power line carrier module is for controlling the operating state of described lamp control module, described power line carrier module reads electrical quantity and the environmental parameter of sampling module transmission simultaneously, monitor the operating state of described lamp control module, to realize input electrical quantity and the environmental parameter of monitoring light fixture.
2. the LED lamp driving power based on power line carrier according to claim 1, is characterized in that, described driving power module comprises power factor correction module, power conversion module, feedback comparison module and constant current/constant voltage circuit module; Described power factor correction module is used for being connected with electrical network, described power factor correction module is also connected with described power conversion module, described power conversion module is connected with described feedback comparison module and described constant current/constant voltage circuit module simultaneously, and described feedback comparison module is also connected with described constant current/constant voltage circuit module;
Described power factor correction module for adjusting the waveform of input current, and compensates the phase difference of current/voltage, keeps input current and input voltage homophase;
Described power conversion module is used for DC power supply high for power factor to be transformed in check specified high frequency square wave pulse voltage;
Described constant current/constant voltage circuit module is for exporting constant electric current and constant voltage;
Described feedback comparison module is used for the output signal output feedback signal according to constant current/constant voltage circuit module, controls the duty ratio of described power conversion module.
3. the LED lamp driving power based on power line carrier according to claim 2, it is characterized in that, described power conversion module comprises electronic switch and high frequency transformer, and described electronic switch is by the size of adjustment switching signal Duty ratio control output current.
4. the LED lamp driving power based on power line carrier according to claim 1, it is characterized in that, also comprise power line carrier coupling module, described power line carrier coupling module is used for being connected with electrical network, described power line carrier coupling module is also connected with described power line carrier module, and described power line carrier coupling module is used for isolated high-voltage electrical network and power line carrier modulation signal or power line carrier restituted signal are coupled to electrical network or power line carrier module.
5. the LED lamp driving power based on power line carrier according to claim 1, it is characterized in that, also comprise accessory power supply, described accessory power supply is connected with described power line carrier module, and described accessory power supply is used for powering to described power line carrier module.
6. the LED lamp driving power based on power line carrier according to claim 1, it is characterized in that, described power line carrier module also for receive electrical network coupling come in timing or real time control command, control command is sent to described lamp control module by described power line carrier module, described lamp control module controls the output voltage of described driving power module according to described control command, and described lamp control module feeds back to described power line carrier module by according to the practice condition of described control command.
7. the LED lamp driving power based on power line carrier according to claim 1-6 any one, it is characterized in that, described electrical quantity comprises electric current, voltage, power and power factor.
8. the LED lamp driving power based on power line carrier according to claim 1-6 any one, it is characterized in that, described environmental parameter comprises temperature and humidity.
9. the LED lamp driving power based on power line carrier according to claim 1-6 any one, is characterized in that, described lamp control module is by controlling the output voltage of described driving power module to control the lighting of described light fixture, to extinguish and brightness.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103874300A (en) * | 2014-03-31 | 2014-06-18 | 太仓电威光电有限公司 | Method and system for adjusting parameters of output end of LED drive |
| CN106231750A (en) * | 2016-08-01 | 2016-12-14 | 广东古帆装饰工程有限公司 | A kind of LED based on carrier-wave transmission control signal |
| CN106708164B (en) * | 2017-02-10 | 2018-11-02 | 珠海凌达压缩机有限公司 | Circuit of power factor correction structure, control method and electric appliance |
| CN107785985B (en) * | 2017-11-09 | 2020-06-26 | 黎辉 | High-low frequency combined type power supply unit |
| CN109496046A (en) * | 2018-09-25 | 2019-03-19 | 新克科技有限公司 | A kind of safety alarm method for the maintenance of street lamp O&M |
| CN115696679B (en) * | 2022-09-09 | 2023-09-22 | 广州市新航科技有限公司 | Aviation obstruction light for power line carrier communication |
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Effective date of registration: 20220628 Address after: 518000 Sanbai Industrial Park, Xiao Bai Mang, Nanshan District, Shenzhen, Guangdong Patentee after: MOSO POWER SUPPLY TECHNOLOGY Co.,Ltd. Address before: 518057 Shenzhen Hong Kong industry university research base w408, high tech Zone, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN CHINAWISEST MEASUREMENT CONTROL TECHNOLOGY CO.,LTD. |