CN102395231B - Direct current (DC) high-voltage power supply LED (light-emitting diode) street lamp system and control signal transmitting and receiving method thereof - Google Patents
Direct current (DC) high-voltage power supply LED (light-emitting diode) street lamp system and control signal transmitting and receiving method thereof Download PDFInfo
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- CN102395231B CN102395231B CN201110277122.1A CN201110277122A CN102395231B CN 102395231 B CN102395231 B CN 102395231B CN 201110277122 A CN201110277122 A CN 201110277122A CN 102395231 B CN102395231 B CN 102395231B
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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
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- 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 invention relates to a direct current (DC) high-voltage power supply LED (light-emitting diode) street lamp system and a control signal transmitting and receiving method thereof, wherein the system comprises a central DC power source machine cabinet and an LED street lamp connected with an electric wire of the machine cabinet. The method comprises the following step: the central DC power source machine cabinet supplies power through the electric wire with a first high voltage; the central DC power source machine cabinet supplies power through the electric wire with a second high voltage and a first continuous duration and transmits data '1'; and the central DC power source machine cabinet supplies power through the electric wire with the second high voltage and a second continuous duration and transmits data '0'. Compared with the prior art, the system and the control signal transmitting and receiving method thereof have the characteristic of power supply and control integration, the establishing and maintaining cost of an LED illumination system is greatly saved, the service life of the whole system is prolonged, and the reliability of the system is improved.
Description
Technical field
The present invention relates to LED illumination, be specifically related to a kind of high direct voltage power supply LED road lamp system and control signal transmission method of reseptance thereof.
Background technology
Compared with conventional road lamp, LED street lamp has long service life, the advantage such as energy-conservation.LED street lamp in the past all adopts interchange (AC) power supply, and every LED street lamp all needs at least one for AC being converted to the Switching Power Supply of direct current (DC), could allow LED street lamp normally work.But because this power supply life-span itself is short, regular damage, this has brought a difficult problem of safeguarding just to LED street lamp, and brief introduction has affected the useful life of LED street lamp.
High direct voltage power supply, namely adopts the form of centrally connected power supply, carries 250V high voltage direct current directly to LED street lamp, and on LED street lamp just without the independent Switching Power Supply of outfit.So far, also there is not the control mode for this high direct voltage power supply LED street lamp specially.In the time that needs are controlled this LED street lamp, can only adopt the way for alternating-current power supply LED street lamp in the past, outside street lamp power supply, road lamp power supply system, increasing control system realizes, this just need to install a signal receiving device on every LED street lamp, and these signals of centralized control receive and the equipment of final controlling element.This class mode has caused the increase of manpower and material cost, in while maintenance afterwards, also needs to safeguard strength for these devices drop into.
In addition, China's invention " LED controller for road lamp ", application number 200910105774.X, the LED controller for road lamp of open a kind of control mode that adopts general packet radio service (GPRS) and purple honeybee (ZigBee) wireless communication transmission data, realize LED street lamp Long-distance Control, it is also the one of autonomous control system and network.
Summary of the invention
The technical issues that need to address of the present invention are, a kind of high direct voltage power supply LED road lamp system and control signal transmission method of reseptance thereof are provided, need not special arrangement and circuit realize Long-distance Control.
First technical problem of the present invention solves like this: a kind of high direct voltage power supply LED road lamp system is provided, comprises:
Central authorities' DC power supply rack, be electrically connected with LED street lamp by electric wire, comprise main control chip, D/A converter module and the power module of electrical connection successively, be used for the first high pressure to LED street lamp power supply, road lamp power supply, or continue duration to LED street lamp power supply, road lamp power supply and transmission data " 1 " with the second high pressure and first, or continue duration to LED street lamp power supply, road lamp power supply and transmission data " 0 " with the second high pressure and second;
LED street lamp, comprises the voltage transformation module, voltage sample module and the single-chip microcomputer that are electrically connected successively, for luminous according to the described transmission Data Control self receiving.
Another technical problem of the present invention solves like this: a kind of high direct voltage power supply LED road lamp system control signal transmission method of reseptance is provided, comprises the following steps:
Central authorities' DC power supply rack by electric wire with the first high pressure to LED street lamp power supply, road lamp power supply;
Central authorities' DC power supply rack continues duration to LED street lamp power supply, road lamp power supply and transmission data " 1 " by electric wire with the second high pressure and first;
Central authorities' DC power supply rack continues duration to LED street lamp power supply, road lamp power supply and transmission data " 0 " by electric wire with the second high pressure and second.
In a preferred embodiment of the present invention, also comprise: between each transmission data, central DC power supply rack is setting in guard time length by electric wire with the first high pressure to LED street lamp power supply, road lamp power supply; Each byte can a corresponding concrete instruction, has distance between byte, also has distance (guard time length) between each data.
In a preferred embodiment of the present invention, it is bus or Star network that the syndeton of described electric wire includes, but are not limited to.
In a preferred embodiment of the present invention, also comprise: the power module that the processor of central DC power supply rack is touched modular converter control central authorities DC power supply rack by the number of central DC power supply rack is with the first high pressure or the second High voltage output.
In a preferred embodiment of the present invention, also comprise: the processor of central DC power supply rack obtains LED street lamp control command by external command receiving interface or external command receiving system.
In a preferred embodiment of the present invention, also comprise: the processor of central DC power supply rack calls corresponding LED street lamp control command according to the control program of storage inside operation.
In a preferred embodiment of the present invention, also comprise: described LED street lamp detects by built-in voltage and described transmission data are obtained in timing unit reception.
In a preferred embodiment of the present invention, also comprise: described LED street lamp detects sampling unit by built-in voltage and single-chip microcomputer receives, processes and obtain described transmission data.
In a preferred embodiment of the present invention, comprise the following steps:
The processor of central authorities' DC power supply rack obtains or calls LED street lamp control command;
The power module that the processor of central authorities' DC power supply rack is touched modular converter control central authorities DC power supply rack by the number of central DC power supply rack is with the first high pressure or the second High voltage output;
Central authorities' DC power supply rack by electric wire with the first high pressure to LED street lamp power supply, road lamp power supply;
Central authorities' DC power supply rack continues duration to LED street lamp power supply, road lamp power supply and transmission data " 1 " by electric wire with the second high pressure and first;
Central authorities' DC power supply rack continues duration to LED street lamp power supply, road lamp power supply and transmission data " 0 " by electric wire with the second high pressure and second;
Described LED street lamp is received and is obtained corresponding described transmission data by built-in voltage detecting and timing unit or built-in voltage detecting sampling unit and single-chip microcomputer.
High direct voltage power supply LED road lamp system of the present invention and control signal transmission method of reseptance thereof, adopt voltage and time to change remote transmission control signal, compared with prior art, there is the feature of Power supply and control unification, greatly save the newly-built and maintenance cost of LED illuminator, further also improved bulk life time and reliability.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, further the present invention is described in detail.
Fig. 1 is the LED road lamp system structural representation of the specific embodiment of the invention;
Fig. 2 is the electric structural representation of LED street lamp in Fig. 1;
Fig. 3 is the control flow schematic diagram that the road lamp system of LED shown in Fig. 1 is corresponding;
Fig. 4 is DAC module output electrical signals sequential schematic diagram in Fig. 1;
Fig. 5 is power module output electrical signals sequential schematic diagram in Fig. 1;
Fig. 6 is that in Fig. 2, single-chip microcomputer obtains signal of telecommunication sequential schematic diagram;
Fig. 7 is the schematic diagram that in Fig. 2, single-chip microcomputer is processed the signal of telecommunication according to state machine model.
Embodiment
As shown in Figure 1, the high direct voltage power supply LED road lamp system of the specific embodiment of the invention comprises central DC power supply rack, multiple direct current supply LED street lamp, and connects the electric wire of central DC power supply rack and direct current supply LED street lamp, wherein:
1, central DC power supply rack comprises: controller, at least one power module;
2, direct current supply LED street lamp comprises: LED light source module, voltage conversion circuit, ADC module, MCU, constant-current circuit;
3, electric wire: directly adopt existing alternating current wires, facilitate street lamp engineering transformation.
Controller comprises: command reception device, main control chip (MCU), digital-to-analogue conversion (DAC) module.Its operation principle is:
External command receiving system is used for receiving external control signal, and this signal is sent to MCU by serial ports; MCU analytic signal, and the data format timed sending data that specify according to DAC module are to DAC module, DAC module becomes analog signal to send to power module the data transaction receiving from MCU, power module changes the output voltage of self according to this control signal, be carried through wires to each direct current supply LED street lamp.
Direct current supply LED street lamp: voltage transformation module converts the high pressure simulation signal that in electric wire, transmission comes to low-voltage analog signal, give analog-to-digital conversion (ADC) module, ADC module is sampled and is extracted analog signal by AD, and convert this signal to digital signal, send to single-chip microcomputer, after single-chip microcomputer is analyzed this digital signal, control constant-current circuit; ADC module claims again voltage sample module.
As shown in Figure 2, the LED street lamp of the specific embodiment of the invention comprises voltage transformation module, ADC module, single-chip microcomputer, constant flow module and LED light source, and described voltage transformation module is electrically connected with high direct voltage power line; ADC module claims again voltage sample module.Its operation principle is:
First the voltage conversion circuit of LED street lamp converts the DC220V-DC250V high-voltage signal receiving from power module to 2.7V-3.3V low-voltage signal, then give ADC resume module, ADC module adopts the mode of timing sampling, sampling period is T, the analog signal collecting is converted to digital signal and give single-chip microcomputer processing, single-chip microcomputer is like this by the processing of agreement rule: LED street lamp powered on moment, the voltage that ADC module detects is high level, therefore, single-chip microcomputer arranges signal=1, signal is the variable of a Boolean type, being used for identifying single-chip microcomputer is low level state or high level state processing the magnitude of voltage that ADC module collects.ADC module gathers M magnitude of voltage and gives single-chip microcomputer (M>20, an integer variable), single-chip microcomputer is arranged this M magnitude of voltage from small to large ord, and remove 4 maximums and 4 minimum values, the mean value of getting remaining (M-8) inferior magnitude of voltage deposits array VOL[0 in], array VOL is an one-dimension array that length is 4, is used for preserving the average voltage level of single-chip microcomputer in processing signals process.Single-chip microcomputer obtains 3 average voltage level again by this rule, deposits respectively VOL[1 in], VOL[2] and VOL[3].
After 1 sampling period T, single-chip microcomputer makes VOL[0]=VOL[1], VOL[1] and=VOL[2], VOL[2]=VOL[3], ADC module gathers magnitude of voltage again M time, gives single-chip microcomputer, single-chip microcomputer obtains the mean value of these voltages in the manner described above, deposits aray variable VOL[3 in].Every through 1 sampling period, single-chip microcomputer just upgrades the value of VOL array in this manner.And these four values relatively: if the difference between 4 elements of array VOL within error range, single-chip microcomputer judges it is " voltage plateau "; If VOL[0]-VOL[1] >Differ, VOL[1]-VOL[2] >Differ, VOL[2]-VOL[3] value of >Differ(Differ will determine according to concrete t1 time value), single-chip microcomputer is judged to be " voltage drop is along state ", now, signalization flag bit Signal_Flag=0, Signal_Flag is the temporary variable that single-chip microcomputer arranges for identification signal level changes; If VOL[1]-VOL[0] >Differ, VOL[2]-VOL[1] >Differ, VOL[3]-VOL[2] >Differ, single-chip microcomputer is judged to be " voltage rising edge state ", and signalization flag bit Signal_Flag=1.
In said process, the value of giving tacit consent to signal when single-chip microcomputer powers on is 1, and single-chip microcomputer can be judged according to " voltage plateau ", " voltage drop is along state " and " voltage rising edge state " value of signal afterwards.If it is " voltage plateau " that single-chip microcomputer has been judged, now the value of Signal_Flag is 0, shows that this voltage plateau is just to have passed through a voltage drop edge, and therefore, single-chip microcomputer is judged signal=0; If single-chip microcomputer is in the time having judged voltage plateau, the value of siganl_Flag is 1, shows that this voltage plateau is just to have passed through a voltage rising edge, and therefore, single-chip microcomputer is judged signal=1.Single-chip microcomputer, according to 0 of signal or 1 state, can draw waveform as shown in Figure 6.
In following process, single-chip microcomputer, according to 0 of signal or 1 state, utilizes state machine thought, and final analysis goes out control signal:
When powering on, gives tacit consent to by single-chip microcomputer siganl=1, state=1, and state is the variable that single-chip microcomputer arranges for the step in id signal analytic process.As shown in Figure 7, when single-chip microcomputer detects that from state=1 siganl is 0, and the lasting time of state 1 meet the demands, make state=2, and empty data buffer zone; When single-chip microcomputer detects that from state=2 signal is 1, make state=3, the time that now single-chip microcomputer can be lasting according to state 2, judgement is data bit 0 or data bit 1, and deposits data buffer zone in; Single-chip microcomputer according to this rule judges and duration of state 2 obtains data bit, in the time that the program in single-chip microcomputer runs to the 8th state 2, if siganl=1 detected, gets the hang of 4.The duration of tracking mode 4 afterwards, in the time that this time exceedes certain value, shows that data byte for transmission is complete, and single-chip microcomputer is processed this byte.
Single-chip microcomputer, handle the data byte of specifying number according to above-mentioned rule after, operates LED light source module by operation constant-current drive circuit, carrys out the executable operations after settling signal receives.
As shown in Figure 3, the LED road lamp system control signal transmission method of reseptance of the specific embodiment of the invention, idiographic flow comprises the following steps:
301) beginning that powers on;
302) MCU of central DC power supply rack control power module is exported with DC250V;
303) judge whether to receive that command reception device is transmitted to the external dimmer command signal of MCU by serial ports? be to enter next step, otherwise return to step 302);
304) MCU extracts this signal, by byte processing, sends the data to DAC resume module according to the reception form of DAC module, and makes DAC module export analog signal as shown in Figure 4 to power module.
Wherein,
t0≥1.5P，t1=0.6P+200mP，t2=0.5P+200mP，t3=0.5P+200mP,t4=1.5P+200mP
Note: P is the time of a unit, and representative value is 1P=1 second.
Like this, MCU, when to a control signal of power module output, can make DAC module export successively magnitude of voltage below: DAC module is first exported the voltage of 5V, and the duration is t0; DAC module is exported magnitude of voltage from 5V to 4.4V, that be in time linear change again, and the time of this process need is t1; DAC module again output duration is t0, magnitude of voltage is that (4.4V voltage is low-voltage for the voltage of 4.4V, the low-voltage duration is that the data that t2 indicates to transmit are binary number 0, and the low-voltage duration is that the data that t4 indicates to transmit are binary number 1); DAC module is exported the voltage that is in time linear change from 4.4V to 5V again, and this time is t1; DAC module is according to after this rule output 6 duration 4.4V low-voltage that is t2, then according to same rule, the 4.4V low-voltage that to export 2 duration be t4; DAC module is exported the voltage that continues variation from 4.4V to 5V again, and after voltage is raised to 5V, the 5V high voltage that output duration is t0.Now, DAC module has been transferred to power module by the data of a byte (8 data bit).If the MCU decision instruction signal of controller is not also sent, can in the manner described above, carry out the transmission of next byte.Otherwise the MCU of controller can allow DAC module continue the voltage of output 5V.
(note: waveform shown in Fig. 4 represents that the data that the MCU of controller will be transferred to power module are hexadecimal number 0x03, namely binary number 0,000 0011, in the time of practical application, the MCU of controller can be according to the data that will transmit, determine number and the order of when transmission ' 0 ' and ' 1 ', thereby determine duration t2 and the t4 of 4.4V low-voltage.）
305) power module, in the time receiving the signal of above-mentioned DAC module output, can change the output voltage of self simultaneously, and the output voltage relation in direct ratio of the output voltage of power module and DAC module.The output voltage of the 5V voltage corresponding power module of DAC module output is 250V, and the output voltage of the 4.4V voltage corresponding power module of DAC module output is 220V, and voltage is transferred to LED street lamp by electric wire, specifically as shown in Figure 5.
306) first the voltage conversion circuit of LED street lamp converts the DC220V-DC250V high-voltage signal receiving from power module to 2.7V-3.3V low-voltage signal, then give ADC resume module, ADC module adopts the mode of timing sampling, sampling period is T, the analog signal collecting is converted to digital signal and give single-chip microcomputer processing, single-chip microcomputer is after handling the data byte of specifying number according to agreement rule, operate LED light source module by operation constant-current drive circuit, carry out the executable operations after settling signal receives.
Claims (5)
1. a high direct voltage power supply LED road lamp system, is characterized in that, comprising:
Central authorities' DC power supply rack, be electrically connected with LED street lamp by electric wire, comprise main control chip, D/A converter module and the power module of electrical connection successively, be used for the first high pressure to LED street lamp power supply, road lamp power supply, or continue duration to LED street lamp power supply, road lamp power supply and transmission data " 1 " with the second high pressure and first, or continue duration to LED street lamp power supply, road lamp power supply and transmission data " 0 " with the second high pressure and second;
LED street lamp, comprises the voltage transformation module, voltage sample module and the single-chip microcomputer that are electrically connected successively, for luminous according to the described transmission Data Control self receiving from described electric wire;
Described LED street lamp detects by built-in voltage and described transmission data are obtained in timing unit reception;
Described LED street lamp detects sampling unit by built-in voltage and single-chip microcomputer receives, processes and obtain described transmission data;
Between each transmission data, central DC power supply rack is setting in guard time length by electric wire with the first high pressure to LED street lamp power supply, road lamp power supply;
The power module that the processor of central authorities' DC power supply rack is touched modular converter control central authorities DC power supply rack by the number of central DC power supply rack is with the first high pressure or the second High voltage output.
2. according to the high direct voltage power supply LED road lamp system described in claim 1, it is characterized in that, the syndeton of described electric wire is bus or Star network.
3. high direct voltage power supply LED road lamp system according to claim 1, is characterized in that, also comprises: the processor of central DC power supply rack obtains LED street lamp control command by external command receiving interface or external command receiving system.
4. high direct voltage power supply LED road lamp system according to claim 1, is characterized in that, also comprises: the processor of central DC power supply rack calls corresponding LED street lamp control command according to the control program of storage inside operation.
5. a high direct voltage power supply LED road lamp system control signal transmission method of reseptance, is characterized in that, comprises the following steps:
The processor of central authorities' DC power supply rack obtains or calls LED street lamp control command;
The power module that the processor of central authorities' DC power supply rack is touched modular converter control central authorities DC power supply rack by the number of central DC power supply rack is with the first high pressure or the second High voltage output;
Central authorities' DC power supply rack by electric wire with the first high pressure to LED street lamp power supply, road lamp power supply;
Central authorities' DC power supply rack continues duration to LED street lamp power supply, road lamp power supply and transmission data " 1 " by electric wire with the second high pressure and first;
Central authorities' DC power supply rack continues duration to LED street lamp power supply, road lamp power supply and transmission data " 0 " by electric wire with the second high pressure and second;
Described LED street lamp is received and is obtained corresponding described transmission data by built-in voltage detecting and timing unit or built-in voltage detecting sampling unit and single-chip microcomputer.
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|---|---|---|---|
| CN201110277122.1A CN102395231B (en) | 2011-09-19 | 2011-09-19 | Direct current (DC) high-voltage power supply LED (light-emitting diode) street lamp system and control signal transmitting and receiving method thereof |
| PCT/CN2011/002008 WO2013040736A1 (en) | 2011-09-19 | 2011-11-30 | Dc high voltage power supply led street lamp system and realization method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110277122.1A CN102395231B (en) | 2011-09-19 | 2011-09-19 | Direct current (DC) high-voltage power supply LED (light-emitting diode) street lamp system and control signal transmitting and receiving method thereof |
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| CN102395231B true CN102395231B (en) | 2014-11-26 |
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| CN103763833B (en) * | 2014-01-23 | 2016-03-16 | 中达电通股份有限公司 | A kind of control method and system controlling LED street lamp based on supply line |
| CN104113970A (en) * | 2014-08-06 | 2014-10-22 | 刘欢艳 | Sub-control device and sub-control unit comprising same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874640A (en) * | 2006-06-09 | 2006-12-06 | 浙江大学 | Intelligent illumination system, and control method |
| CN101778514A (en) * | 2010-02-09 | 2010-07-14 | 浙江金基电子技术有限公司 | LED street lamp energy conversion and energy saving control device |
| CN201608948U (en) * | 2010-03-26 | 2010-10-13 | 东莞勤上光电股份有限公司 | High-voltage DC LED street lamp power supply system and street lamp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000277269A (en) * | 1999-03-26 | 2000-10-06 | Matsushita Electric Works Ltd | Dimming terminal unit of remote supervisory control system |
| US6771029B2 (en) * | 2001-03-28 | 2004-08-03 | International Rectifier Corporation | Digital dimming fluorescent ballast |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874640A (en) * | 2006-06-09 | 2006-12-06 | 浙江大学 | Intelligent illumination system, and control method |
| CN101778514A (en) * | 2010-02-09 | 2010-07-14 | 浙江金基电子技术有限公司 | LED street lamp energy conversion and energy saving control device |
| CN201608948U (en) * | 2010-03-26 | 2010-10-13 | 东莞勤上光电股份有限公司 | High-voltage DC LED street lamp power supply system and street lamp |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2000-277269A 2000.10.06 * |
| JP特开2007-273474A 2007.10.18 * |
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Effective date of registration: 20171103 Address after: 523565 Guangdong city of Dongguan province Changping Zhen Heng Jiang Jiang Xia Heng Industrial Road, set up a file Patentee after: KINGSUN OPTOELECTRONIC CO., LTD. Address before: 523000 Guangdong city of Dongguan province Changping Zhen Heng Jiang set up a file Patentee before: Dongguan Qinshang Photoelectric Co., Ltd. |