CN201204725Y - Intelligent switch controller for solar street lamp - Google Patents
Intelligent switch controller for solar street lamp Download PDFInfo
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- CN201204725Y CN201204725Y CNU2008200545910U CN200820054591U CN201204725Y CN 201204725 Y CN201204725 Y CN 201204725Y CN U2008200545910 U CNU2008200545910 U CN U2008200545910U CN 200820054591 U CN200820054591 U CN 200820054591U CN 201204725 Y CN201204725 Y CN 201204725Y
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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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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- 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
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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Abstract
The utility model pertains to the solar energy utilization technique field, specifically relates to an intelligent switch control device of solar street light comprising a main processor CPU module, a communication module, a CPU monitoring module, an input module, an output module, a load open-circuit detection module and a DC-DC transformation module which are connected by circuit. The output of the solar battery is connected with the input module and then sent to the CPU module; the output of the photovoltaic controller is connected with the input module and then connected to the CPU module; the battery voltage is transformed by the DC-DC transformation module and then supplied to the system working power supply; the actuating mechanism of the output module which comprises a commercial power transfer relay and an inversion transfer relay, accepts the control of the CPU module; the load open-circuit detection module is connected between the output module and the load; the CPU module is connected with the communication module and performs data communication with the whole network via the communication bus. All the operation state of the utility model can be transmitted to the far-end upper machine through the communication module, and the upper machine can also remotely control the operation or stop of the terminal road lamp under commercial power supply.
Description
Technical field
The utility model belongs to technical field of solar utilization technique, is specifically related to a kind of solar street light intelligence switch controller.
Background technology
Traditional controller for solar generally only possesses control and the protection to charging and discharging of accumulator process and solar panel, such as the solar panel reversal connection, instead fill protection, reverse connection of accumulator, open a way, overcharge, cross put, overvoltage, under-voltage protection, load overcurrent and short-circuit protection are supported time control, light-operated; Function such as regularly, light sensitivity is adjustable.These functions can satisfy instructions for use in unit control occasion, and along with going deep into of progress of science and technology and modern management, it is imperative that networking is controlled and managed, but traditional controller obviously can't satisfy current trend.
Summary of the invention
The purpose of this utility model is to provide a kind of can realize networking work, can carry out the solar street light intelligence switch controller of unit work again.
The solar street light intelligence switch controller structured flowchart that the utility model proposes as shown in Figure 1.The ancillary equipment of this structure is continued to use traditional controller and is finished solar panel to basic functions such as accumulator cell charging and dischargings, and the utility model is then gathered their relevant inputs, output state is realized the purpose that intelligence is switched and teledata transmits.
This intelligence switch controller is connected to form through circuit by primary processor CPU module 1, communication module 2, cpu monitor module 3, input module 4, output module 5, load open circuit detection module 6 and DC-DC conversion module 7.Solar cell 9 outputs are connected to input module 4, and the result after comparator 10 is handled sends into CPU module 1; Photovoltaic controller 8 outputs are connected to input module 4 and are connected to CPU module 1 after photoelectricity are isolated; Battery voltage provides the system works power supply after 7 conversion of DC-DC conversion module; The actuator of output module 5 accepts the control of CPU module 1 by photoelectricity isolation 12; The actuator of output module 5 is made up of civil power transfer relay J11 and inversion transfer relay J21, is connected load open circuit detection module 6 between output module 5 and the load; CPU module 1 is connected to communication module 2 and carries out exchanges data through communication bus and whole network.
The electric energy that is shined upon generation when solar panel by traditional photovoltaic controller to charge in batteries and arrive rated capacity gradually and detect when turning on light state, 24 volts of voltages of output output direct current, connect the inverter operation relay when the utility model receives this voltage, 220 volts of power works of inverter output are used in load.When traditional photovoltaic controller detection had been arrived turn-off, output stopped to export 24 volts of voltages, and the utility model disconnects the inverter operation relay when detecting this loss of voltage, and load quits work.
Because comparator input terminal of the present utility model is received in the output of solar panel simultaneously, when this input detects the 24 volts of voltages of direct current that do not receive the photovoltaic controller output to the state of turning on light, start time-delay circulation in 30 minutes and confirm that back (photovoltaic controller fault) automatically switches to the civil power operation, disconnect civil power operation relay when detecting turn-off.
Enter behind the state of turning on light as battery voltage and descend when making inverter stop to export, the utility model is judged by comparator input terminal and still will be disconnected the inverter operation relay and connect civil power operation relay when turning on light state, disconnects civil power operation relay when detecting turn-off.
All running statuses of the utility model can be sent to the far-end host computer by communication module, but host computer also far-end control terminal street lamp under mains supply operation or stop.
Device property
The STC89C51RC chip that primary processor CPU1 adopts U.S. STC Corporation to produce; this chip has wide operating voltage 3.4V-6V, superpower anti-interference (power supply, reset circuit all pass through special processing; each I/O mouth is connected to diode clamp protection), super low-power consumption (normal mode of operation 4mA-7mA; idle pulley 2mA; power-down mode 0.5uA), can't decipher that (user program is to write with ISP/IAP mechanism; nos sense command is write in verification on one side on one side), reduction EMI (electromagnetic interference), high-antistatic (ESD), powerful characteristics such as communication function
[1]Circuit bank prejudice Fig. 2.
The interface of communication module 2 adopts the RS-485 communication interface chip; produce by U.S. Maxim company; be MAX3082 half-duplex operation chip; this chip has real fail safe operation; 1/8 unit load (allowing 256 bus nodes); three kinds of other Slew Rate restrictions of level, and the data rate of 10Mbps.They are that first satisfies the device that the RS-232 standard provides real fail safe output simultaneously again.
What the RS-485 interface adopted is a kind of differential transfer mode, the communication between each node all be by a pair of (half-duplex) or two to (full duplex) twisted-pair feeder as transmission medium.According to the standard code of RS-485, the receiving sensitivity of receiver is ± 200mV, promptly the differential voltage of receiving terminal greater than, equal+during 200mV, receiver is output as high level; Less than, equal-during 200mV, receiver is output as low level; Between between ± the 200mV time, receiver is output as nondeterministic statement.In the bus free time is that all nodes all are accepting state and during at transmission line open circuit or short trouble on the transmission line, if do not take special measure, then receiver may export high level also may output low level.Will make serial received device (UART) can not find start bit in case the receiver of certain node produces low level, thereby cause communication abnormality.Use MAX3082 can effectively solve this type of problem, because this chip belt failure protection function, it can make receiver be output as high level under bus open circuit, short circuit and idle condition.Receiver output high level is realized by changing the receiver input threshold when guaranteeing bus free time, short circuit.When input sensitivity is-50mV/-200mV, promptly differential receiver input voltage UA-B 〉=-during 50mV, receiver output logic high level; If UA-B≤-200mV, then output logic low level.When all transmitters were under an embargo on receiver input bus short circuit or the bus, the receiver differential input end was 0V, thereby made receiver output high level
[2]Circuit bank prejudice Fig. 3.
The Single Chip Microcomputer (SCM) system supervisory circuit IMP813L that cpu monitor module 3 adopts USA I P company to produce.The CPU situation such as cause that system parameters is illegally modified that executes instruction mistakenly when supply voltage reduces, need increase power supply supervisory circuit to system, CPU when being lower than a certain value, supply voltage is quit work, be in reset mode, after treating that voltage recovers normally, CPU breaks away from reset mode again, enters normal operating conditions; When system powers on, also must provide reliable reset signal to CPU.The major function of IMP813L is as follows: 1. system power on, when power down and supply power voltage reduce, the 7th pin produces the output that resets, high level is effective; 2. watchdog circuit output is not if triggered this circuit (i.e. the 6th pin no pulse input) then low level of the 8th pin output in 1.6 seconds; 3. hand-reset input, low level is effective, i.e. low level of the 1st pin input, then the 7th pin produces the output that resets
[3]Circuit bank prejudice Fig. 4.
CPU I/O all adopts the TLP521 photoelectric coupler isolation with peripheral input, output interface.Civil power and inversion TURP converting mechanism adopt the DC24V direct current relay in the output module 5, and the relay coil end installs protection diode D3, D4 and anti-interference capacitor C5, C6 respectively additional.The coil-end that is civil power transfer relay J11 installs the protection diode D3 and the interference capacitors C5 that shakes respectively additional, and the coil-end of inversion switch J21 installs protection diode D4 and capacitor C 6 respectively additional.Cause serious consequence for preventing that civil power output relay and inversion output relay from connecting simultaneously, the dual interlock that ad hoc meter relay J 12, J22 form, i.e. adjunction relay J 12 between relay J 11 and capacitor C 5, adjunction relay J 22 between relay J 12 and electric capacity 6, because the normally opened contact of this relay is serially connected in respectively in the other side's the control loop, can not lead to grave consequences even therefore produce misoperation in the circuit yet.Figure 10,11,12 is respectively the switching value input processing circuit.
Load open circuit detection module 6 is made up of sample resistance R25, rectifier bridge heap B1, filter capacitor C7, current-limiting resistance R26 and photoelectrical coupler G7.Circuit is seen Fig. 8.Wherein, sample resistance R25 is connected in the two ends of rectifier bridge heap B1, and filter capacitor C7 is connected in the two ends in addition of rectifier bridge heap B1, and current-limiting resistance R26 and photoelectrical coupler G7 are connected between rectifier bridge heap B1 and the load successively.
DC-DC conversion module 7 adopts the LM2576-5V chip, and this chip is the monolithic buck switching regulator that U.S. NS company produces.Partly form by oscillator, sampling amplifier, comparator, PWM modulator, power switch etc.
The MCU of micro control system generally needs a stable operating voltage ability reliably working.And the designer is accustomed to adopting linear voltage stabilization device (as 78xx series three-terminal voltage-stabilizing device) as voltage-regulation and voltage-stabilizing device higher direct voltage to be changed the required operating voltage of MCU more.The linearity of this linear stabilized power supply is adjusted working method and is had bigger " thermal loss " (its value is V pressure drop * I load) at work, and its operating efficiency only is 30%～50%.The Switching Power Supply trim is then worked in the mode of complete conducting or shutoff.Therefore, be that big electric current flows through the switching tube of low conducting voltage or is to flow through by no current fully during work.Therefore, the power consumption of switching power supply is extremely low, and its average operating efficiency can reach 70%～90%.Under the condition of same voltage drop, the Switching Power Supply trim is compared " thermal loss " with much less with the linear voltage stabilization device.Therefore, switching power supply can significantly reduce the area of fin volume and pcb board, even does not in most of the cases need finned, thereby has reduced the adverse effect to the MCU operational environment.Adopt switching power supply to come the instead of linear stabilized voltage power supply as another advantage of MCU power supply to be: the high frequency break-make characteristic of switching tube and the use of series filtering inductance have stronger inhibitory action to the High-frequency Interference that comes from power supply
[4]Circuit bank prejudice Fig. 9.
Operation principle
1, during normal condition
When system gets when detecting P3.7 also for low level again when electric back CPU detects P1.7 and is low level in 30 minutes, the P0.1 output low level makes photoelectrical coupler T3 and VT2 conducting, inversion transfer relay J21, J22 adhesive.J21 contacting inverter makes loaded work piece, and the J22 contact disconnects civil power transfer relay J11, J12 control loop.When CPU detected P3.7 and P1.7 and is high level, P0.1 output high level ended photoelectrical coupler T3 and VT2, and inversion transfer relay J21, J22 discharge.
When 2, moving midway the under-voltage or fault of converter of storage battery
To detect P1.7 be low level and P3.7 when being high level to CPU behind the loaded work piece, and P0.1 output high level ends photoelectrical coupler T3 and VT2, and inversion transfer relay J21, J22 discharge.The P0.0 output low level makes photoelectrical coupler T2 and VT1 conducting, civil power transfer relay J11, J12 adhesive.J11 contacting mains supply makes loaded work piece, and the J12 contact disconnects inversion transfer relay J21, J22 control loop.Connect the fault alarm indicator light simultaneously.
When 3, photovoltaic controller does not have the output of 24V control voltage
When detection was low level less than P3.7 after CPU detects P1.7 to be low level and in 30 minutes, the P0.0 output low level made photoelectrical coupler T2 and VT1 conducting, civil power transfer relay J11, J12 adhesive.J11 contacting mains supply makes loaded work piece, and the J12 contact disconnects inversion transfer relay J21, J22 control loop.Connect the fault alarm indicator light simultaneously.When CPU detected P1.7 and is high level, P0.0 output high level ended photoelectrical coupler T2 and VT1, and civil power transfer relay J11, J12 discharge.
4, load open circuit detects
The state of CPU cycle detection P0.2 is to judge the load running situation behind the loaded work piece.Program continued operation when P0.2 was low level; P0.1 output high level ended photoelectrical coupler T2 or T3 and VT1 or VT2 when P0.2 was high level, and inversion transfer relay J11, J12 or J21, J22 discharge, and connect malfunction indicator lamp.
CPU serial line interface SBUF is controlled to be the slave status that is used for multi-computer communication by state byte SCON, mode of operation 3 (SM0=SM1=1) communication baud rate 9600bps.Slave was not in idle condition when main frame did not send data.When main frame is sent out a frame address information, slave compares with this machine address after receiving address frame, and the address conforms to and then puts SM2=0, sends Frame to main frame.The address does not conform to and then keeps SM2=1, keeps the idle waiting state
[5]
The main circulating program flow chart is seen Figure 13.
The master-slave communication program flow diagram is seen Figure 14.
System's characteristics
But independent operating when not networking.Line data is uploaded but host computer opening and closing street lamp in networking back is gone forward side by side.
Starting load open circuit measuring ability immediately after load is opened is found to cut off the electricity supply immediately behind the load open circuit and light malfunction indicator lamp.
Automatically switch to the civil power operation behind photovoltaic controller or the fault of converter.
Automatically switch to the civil power operation after moving storage battery under-voltage protection midway.
The fault that the power input design has anti-reverse function to cause on the contrary to avoid polarity to connect.
Force switch is set so that in installation or maintenance or can the opening and closing street lamp when emergent.
Adopt the CRC check method to guarantee the reliability of communication data.
Because misoperation causes the serious consequence that civil power and inversion electrical relay are connected simultaneously, on hardware and software, taked dual interlocking measure for avoiding simultaneously.
List of references
[1]STC?datasheet?STC89C51RC-RD+_GUIDE-CHINESE.pdf
[2]MAXIM?datasheet?MAX3080E-MAX3089E.pdf
[3]IMP?datasheet?IMP705_13.pdf
[4]NS?datasheet?LM2576_5V.pdf
[5] He Limin. the scm application system design. Beijing: publishing house of BJ University of Aeronautics ﹠ Astronautics 1990
Description of drawings
Fig. 1, the utility model system block diagram.
Fig. 2, the utility model primary processor CPU module principle figure.
Fig. 3, the utility model communication module schematic diagram.
Fig. 4, the utility model cpu monitor module principle figure.
Fig. 5, the utility model output handover module basic circuit diagram.
Fig. 6, the utility model output handover module civil power switching principle figure.
Fig. 7, the utility model output handover module inversion switching principle figure.
Fig. 8, the utility model load open circuit detection module schematic diagram.
Fig. 9, the utility model DC-DC conversion module schematic diagram.
State schematic diagram when Figure 10, the utility model input module use alternating current.
State diagram when Figure 11, the utility model input module use alternating current.
Figure 12, the utility model input module are by day or the state at night diagram.
Figure 13, the utility model main program flow chart.
Figure 14, the utility model signal procedure flow chart.
Embodiment
Because telecommunication circuit IC4 is a half-duplex mode, its reiving/transmitting state is enabled for receiving during IC4 (2) (3) pin low level by CPU I/O P3.2 control triode VT5, enables for sending during high level.See shown in Figure 3.
During cpu monitor circuit I MP813L practical application, the 7th pin is connect the RESET pin of CPU, the 1st pin links to each other by diode D5 with the 8th pin, and the 6th pin links to each other with the P1.4 of CPU.The continuous output pulse signal of P1.4 in software design.Cause P1.4 no pulse output as system in case of system halt, then after 1.6 seconds in the 8th pin output low level of IMP813L.This low level is added to the 1st pin makes IMP813L produce the output that resets, and makes the CPU active homing, breaks away from the predicament of endless loop.When supply voltage was lower than threshold value 4.65V, IMP813L also produced the output that resets in addition, made CPU not carry out any operation and recovered normal until supply voltage.See shown in Figure 4.
When load current is flowed through sample resistance R25, obtain alternating voltage and after rectification and filtering, obtain the galvanic current pressure, after current-limiting resistance R26 current limliting, make photoelectrical coupler G7 output conducting or end, load was normal when the G7 output was low level, load open circuit during for high level.This state is sent into CPU I/O P0.2.See shown in Figure 8.
Because solar energy system adopts the 24V storage battery, makes that system power supply of the present utility model can be directly by storage battery power supply.Power input of the present utility model is connected to anti-reverse diode D1 in case the serious consequence that the stop polarity wrong brings.For reducing to import transient voltage and provide switching current to adjuster, voltage input end meets shunt capacitance C1 and sends into IC5 (1) pin, thereby obtains system power supply VCC at IC5 (2) pin.See shown in Figure 9.
Alternating current 220V obtains direct current 100V voltage after by rectifier diode D6 rectification to be made photoelectrical coupler G8 output conducting or ends after resistance R 27 current limlitings, this state is sent into CPU I/O P0.7.See shown in Figure 10.
The voltage one tunnel that silicon photocell is shined upon generation charges to storage battery and judges operation or the condition that stops according to light is strong and weak through traditional photovoltaic controller, its output DC24V (operation) or 0V (stopping) signal are sent into photoelectrical coupler T1 through R18, allow inversion during the T1 output low level, forbid inversion during the output high level.This state is sent into CPU I/O P3.7.See shown in Figure 11.
Operational amplifier IC2 is sent in another road after R3, R4 dividing potential drop, if this voltage is " evening " less than 5 volts of explanations, and operational amplifier IC2 output low level.If voltage is " daytime " greater than the 5V explanation, operational amplifier IC2 exports high level.This state is sent into CPU I/O P1.7.See shown in Figure 12.
RS-485 telecommunication cable total length is necessary≤and 200 meters, use the twisted pair communications cable of band screen.
Concatenate rule must be to begin be linked in sequence successively (annular is opened up benefit) from the host computer communication interface till the last slave communication interface.
Hold the resistance of each one 120 Ω in parallel from machine communication interface A, B at communication interface A, the B of host computer end and the last.
Claims (7)
1, a kind of solar street light intelligence switch controller is characterized in that being connected to form through circuit by primary processor CPU module (1), communication module (2), cpu monitor module (3), input module (4), output module (5), load open circuit detection module (6) and DC-DC conversion module (7); Solar cell (9) output is connected to input module (4), and the result after comparator (10) is handled sends into CPU module (1); Photovoltaic controller (8) output is connected to input module (4) and is connected to CPU module (1) after photoelectricity is isolated; Battery voltage provides the system works power supply after DC-DC conversion module (7) conversion; The actuator of output module (5) isolates the control that (12) accept CPU module (1) by photoelectricity; The actuator of output module is made up of civil power transfer relay (J11) and inversion transfer relay (J21), is connected load open circuit detection module (6) between output module (5) and the load; CPU module (1) is connected to communication module (2) and carries out exchanges data through communication bus and whole network.
2, solar energy intelligent switch controller according to claim 1 is characterized in that described primary processor CPU module (1) adopts the STC89C51RC chip.
3, solar energy intelligent switch controller according to claim 1 is characterized in that the interface of described communication module (2) adopts MAX3082 half-duplex operation chip.
4, solar energy intelligent switch controller according to claim 1 is characterized in that described cpu monitor module (3) adopts IMP813L.
5, solar energy intelligent switch controller according to claim 1, it is characterized in that described 2 photoelectricity isolate (11,12) and all adopt the TLP521 photoelectrical coupler, in described output module (5), civil power transfer relay (J11) and inversion transfer relay (J21) all adopt the DC24V direct current relay; Install protection diode D3, anti-interference capacitor C5 respectively additional in the coil-end of civil power transfer relay (J11), install protection two utmost point D4, anti-interference capacitor C6 respectively additional in the coil-end of inversion transfer relay (J21); Simultaneously, adjunction relay (J12) between civil power transfer relay (J11) and capacitor C 5, adjunction relay (J22) constitutes dual interlock between inversion transfer relay (J21) and capacitor C 6.
6, solar energy intelligent switch controller according to claim 1 is characterized in that load open circuit detection module (6) is made up of sample resistance R25, rectifier bridge heap B1, filter capacitor C7, current-limiting resistance R26 and photoelectrical coupler G7; Wherein, sample resistance R25 is connected in the two ends of rectifier bridge heap B1, and filter capacitor C7 is connected in the two ends in addition of rectifier bridge heap B1, and current-limiting resistance R26 and photoelectrical coupler G7 are connected between rectifier bridge heap B1 and the load successively.
7, solar energy intelligent switch controller according to claim 1 is characterized in that described DC-DC conversion module (7) adopts the LM2576-5V chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008200545910U CN201204725Y (en) | 2008-01-10 | 2008-01-10 | Intelligent switch controller for solar street lamp |
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| CNU2008200545910U CN201204725Y (en) | 2008-01-10 | 2008-01-10 | Intelligent switch controller for solar street lamp |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801130A (en) * | 2010-02-10 | 2010-08-11 | 金陵科技学院 | Remote intelligent distributed control system and method for solar energy power generating streetlamp |
| CN101877499A (en) * | 2010-04-07 | 2010-11-03 | 艾默生网络能源有限公司 | Method and system for continuously supplying power by solar energy and commercial power |
| CN101997335A (en) * | 2010-06-25 | 2011-03-30 | 珠海高凌信息科技有限公司 | Power supply control system and control method |
| CN102364810A (en) * | 2011-09-30 | 2012-02-29 | 长沙学院 | A control method and controller for multi-stage absorption of solar photovoltaic cell electric energy |
| WO2012145880A1 (en) * | 2011-04-28 | 2012-11-01 | 东莞勤上光电股份有限公司 | Led street lamp and control device thereof |
| CN103298191A (en) * | 2012-03-05 | 2013-09-11 | 海洋王照明科技股份有限公司 | Street lamp and power supplying method thereof |
-
2008
- 2008-01-10 CN CNU2008200545910U patent/CN201204725Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801130A (en) * | 2010-02-10 | 2010-08-11 | 金陵科技学院 | Remote intelligent distributed control system and method for solar energy power generating streetlamp |
| CN101801130B (en) * | 2010-02-10 | 2013-09-11 | 金陵科技学院 | Remote intelligent distributed control system and method for solar energy power generating streetlamp |
| CN101877499A (en) * | 2010-04-07 | 2010-11-03 | 艾默生网络能源有限公司 | Method and system for continuously supplying power by solar energy and commercial power |
| CN101877499B (en) * | 2010-04-07 | 2012-07-18 | 艾默生网络能源有限公司 | Method and system for continuously supplying power by solar energy and commercial power |
| CN101997335A (en) * | 2010-06-25 | 2011-03-30 | 珠海高凌信息科技有限公司 | Power supply control system and control method |
| WO2012145880A1 (en) * | 2011-04-28 | 2012-11-01 | 东莞勤上光电股份有限公司 | Led street lamp and control device thereof |
| CN102364810A (en) * | 2011-09-30 | 2012-02-29 | 长沙学院 | A control method and controller for multi-stage absorption of solar photovoltaic cell electric energy |
| CN102364810B (en) * | 2011-09-30 | 2014-04-23 | 长沙学院 | A control method and controller for multi-stage absorption of solar photovoltaic cell electric energy |
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| CN103298191B (en) * | 2012-03-05 | 2016-06-29 | 海洋王照明科技股份有限公司 | A kind of street lamp and method of supplying power to thereof |
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