CN109041382A - Two core wire RGB light adjusting circuit of outdoor low voltage - Google Patents
Two core wire RGB light adjusting circuit of outdoor low voltage Download PDFInfo
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- CN109041382A CN109041382A CN201810985942.8A CN201810985942A CN109041382A CN 109041382 A CN109041382 A CN 109041382A CN 201810985942 A CN201810985942 A CN 201810985942A CN 109041382 A CN109041382 A CN 109041382A
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- electrically connected
- triode
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- interface
- microprocessor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Present invention discloses a kind of two core wire RGB light adjusting circuits of outdoor low voltage, including control unit and driving unit, driving unit to be electrically connected with control unit by two core wires, and two core wires are for powering and transmitting carrier signal；The present invention connects driving unit and control unit by using two core wires, i.e. two core wires can either achieve the purpose that power supply, and can achieve the purpose that transmit data, so as to reduce cost.
Description
Technical field
The present invention relates to light adjusting circuit technical fields, and in particular to a kind of two core wire RGB light adjusting circuit of outdoor low voltage.
Background technique
Current outdoor RGB light adjusting circuit generally comprises control unit and driving unit, and driving unit is to pass through quad
It being electrically connected with control unit, i.e., two in quad piece conducting wire is for powering, and in addition two conducting wires are then used for transmission data, but
Be driving unit to be connected using quad and the maximum drawback of control unit is: the manufacture craft of quad requires relatively
Height, and have the shortcomings that at high cost.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of two core wire RGB light adjusting circuit of outdoor low voltage, by using
Two core wires connect driving unit and control unit, i.e. two core wires can either achieve the purpose that power supply, and can reach transmission number
According to purpose, so as to reduce cost.
Two core wire RGB light adjusting circuit of a kind of outdoor low voltage disclosed by the invention, including control unit and driving unit, driving
Unit is electrically connected with control unit by two core wires, and two core wires are for powering and transmitting carrier signal.
Two core wire RGB light adjusting circuit of a kind of outdoor low voltage disclosed by the invention, wherein control unit includes supply convertor
The IN foot of U1 and microprocessor U2, supply convertor U1 are electrically connected with power supply+16V, and the EN foot of supply convertor U1 passes through resistance
R10 is electrically connected with power supply+16V, and power supply+16V is grounded by capacitor C11, the GND foot ground connection of supply convertor U1, power conversion
The COMP foot of device U1 is grounded after being sequentially connected in series capacitor C3 and resistance R5, is grounded after the FB foot series resistance R4 of supply convertor U1,
It is electrically connected after the FB foot series resistance R2 of supply convertor U1 with interface P1, the SW foot differential concatenation pressure stabilizing two of supply convertor U1
It is grounded after pole pipe D1, is electrically connected after the SW foot series capacitance C1 of supply convertor U1 with the BS foot of supply convertor U1, power supply becomes
It is electrically connected, is grounded after interface P1 series capacitance C2, capacitor C2 is parallel with electricity with interface P1 after the SW foot series inductance L1 of parallel operation U1
R7 is hindered, is electrically connected after the 2 foot series resistance R9 of microprocessor U2 with the grid of field-effect tube Q11, the source electrode of field-effect tube Q11 connects
The drain electrode on ground, field-effect tube Q11 is electrically connected with interface P2, and 4 feet and 7 feet of microprocessor U2 are electrically connected with power supply+5V, micro process
5 feet and 6 feet of device U2 are grounded after distinguishing series capacitance C5 and capacitor C6, after 5 feet of microprocessor U2 series connection crystal oscillator X1 with micro- place
The 6 feet electrical connection of device U2 is managed, 10 feet of microprocessor U2 are electrically connected with the Vout foot of infrared receiving tube IR1, infrared receiving tube IR1
GND foot ground connection, be electrically connected with power supply+5V after the VCC foot series resistance R6 of infrared receiving tube IR1, infrared receiving tube IR1's
Be grounded after VCC foot series capacitance C7,11 feet of microprocessor U2 ground connection, after the 11 foot series capacitance C4 of microprocessor U2 with power supply
+ 5V electrical connection.
Two core wire RGB light adjusting circuit of a kind of outdoor low voltage disclosed by the invention, wherein driving unit includes bridge rectifier mould
Two ac input ends of block BR and microprocessor U3, bridge rectifier module BR are electrically connected with interface P4 and interface P5 respectively, bridge
The cathode output end of formula rectification module BR is electrically connected with ground terminal GND2, the cathode output end series resistance of bridge rectifier module BR
It is grounded after R8, the cathode output end of bridge rectifier module BR is electrically connected with the anode of diode D2, the cathode series connection of diode D2
It is grounded after capacitor C12, is electrically connected after the cathode series resistance R19 of diode D2 with power end+3.3V, power end+3.3V series connection
It is electrically connected after zener diode DZ2 with ground terminal GND2, zener diode DZ2 is parallel with capacitor C13,4 feet of microprocessor U3
It is electrically connected with power end+3.3V with 7 feet, after the 10 foot series resistance R17 of microprocessor U3 just with bridge rectifier module BR
Pole output end is electrically connected, and is electrically connected after the 10 foot series voltage stabilizing diode DZ1 of microprocessor U3 with ground terminal GND2, microprocessor
11 feet of U3 are electrically connected with ground terminal GND2, are electrically connected after the 11 foot series capacitance C10 of microprocessor U3 with power end+3.3V,
It is electrically connected after the 1 foot series resistance R1 of microprocessor U3 with the collector of the base stage of triode Q3 and triode Q7, triode Q7
Emitter be electrically connected with ground terminal GND2, be electrically connected after the emitter series resistance R12 of triode Q3 with ground terminal GND2, three
The base stage of pole pipe Q7 is electrically connected with the emitter of triode Q3, and the collector of triode Q3 is electrically connected with 4 feet of interface P3, micro- place
It is electrically connected after managing the 14 foot series resistance R3 of device U3 with the collector of the base stage of triode Q1 and triode Q5, the hair of triode Q5
Emitter-base bandgap grading is electrically connected with ground terminal GND2, is electrically connected after the emitter series resistance R14 of triode Q1 with ground terminal GND2, triode
The base stage of Q5 is electrically connected with the emitter of triode Q1, and the collector of triode Q1 is electrically connected with 2 feet of interface P3, microprocessor
It is electrically connected after the 13 foot series resistance R15 of U3 with the collector of the base stage of triode Q2 and triode Q6, the transmitting of triode Q6
Pole is electrically connected with ground terminal GND2, is electrically connected after the emitter series resistance R16 of triode Q2 with ground terminal GND2, triode Q6
Base stage be electrically connected with the emitter of triode Q2, the collector of triode Q2 is electrically connected with 3 feet of interface P3, the 1 of interface P3
Foot is electrically connected with the cathode output end of bridge rectifier module BR.
A kind of two core wire RGB light adjusting circuit of outdoor low voltage disclosed by the invention, wherein two lead-out wires of two core wire one end
It is electrically connected respectively with interface P1 and interface P2, two lead-out wires of the two core wire other ends are electrically connected with interface P4 and interface P5 respectively
It connects, interface P4 is electrically connected with interface P1, and interface P5 is electrically connected with interface P2.
The present invention connects driving unit and control unit by using two core wires, i.e. two core wires can either reach power supply
Purpose, and can achieve the purpose that transmit data, so as to reduce cost.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is schematic block circuit diagram of the invention；
Fig. 2 is the circuit diagram of control unit；
Fig. 3 is the circuit diagram of driving unit.
Specific embodiment
Multiple embodiments of the invention will be disclosed with schema below, as clearly stated, the details in many practices
It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also
It is to say, in some embodiments of the invention, the details in these practices is non-essential.In addition, for the sake of simplifying schema,
Some known usual structures and component will be painted it in the drawings in simply illustrative mode.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, not especially censure
The meaning of order or cis-position, also non-to limit the present invention, the component described just for the sake of difference with same technique term
Or operation, it is not understood to indicate or imply its relative importance or implicitly indicates the number of indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.In addition, each
Technical solution between a embodiment can be combined with each other, but must can be implemented as base with those of ordinary skill in the art
Plinth will be understood that the combination of this technical solution is not present when conflicting or cannot achieve when occurs in the combination of technical solution,
Also not the present invention claims protection scope within.
Two core wire RGB light adjusting circuit of outdoor low voltage of the invention, including control unit 1 and driving unit 2, driving unit 2
It is electrically connected by two core wires 3 with control unit 1, two core wires 3 are for powering and transmitting carrier signal；Control unit 1 includes power supply
The IN foot of converter U1 and microprocessor U2, supply convertor U1 are electrically connected with power supply+16V, and the EN foot of supply convertor U1 is logical
It crosses resistance R10 to be electrically connected with power supply+16V, power supply+16V is grounded by capacitor C11, the GND foot ground connection of supply convertor U1, electricity
The COMP foot of source converter U1 is grounded after being sequentially connected in series capacitor C3 and resistance R5, after the FB foot series resistance R4 of supply convertor U1
It is grounded, is electrically connected after the FB foot series resistance R2 of supply convertor U1 with interface P1, the SW foot differential concatenation of supply convertor U1
It is grounded after zener diode D1, is electrically connected after the SW foot series capacitance C1 of supply convertor U1 with the BS foot of supply convertor U1,
It is electrically connected, is grounded after interface P1 series capacitance C2, capacitor C2 is simultaneously with interface P1 after the SW foot series inductance L1 of supply convertor U1
It is associated with resistance R7, is electrically connected after the 2 foot series resistance R9 of microprocessor U2 with the grid of field-effect tube Q11, field-effect tube Q11's
Source electrode ground connection, the drain electrode of field-effect tube Q11 are electrically connected with interface P2, and 4 feet and 7 feet of microprocessor U2 are electrically connected with power supply+5V,
5 feet and 6 feet of microprocessor U2 are grounded after distinguishing series capacitance C5 and capacitor C6, after the 5 feet series connection crystal oscillator X1 of microprocessor U2
It is electrically connected with 6 feet of microprocessor U2,10 feet of microprocessor U2 are electrically connected with the Vout foot of infrared receiving tube IR1, infrared to connect
The GND foot of closed tube IR1 is grounded, and is electrically connected after the VCC foot series resistance R6 of infrared receiving tube IR1 with power supply+5V, infrared receiving tube
It is grounded after the VCC foot series capacitance C7 of IR1, the 11 feet ground connection of microprocessor U2, after the 11 foot series capacitance C4 of microprocessor U2
It is electrically connected with power supply+5V；Driving unit 2 include bridge rectifier module BR and microprocessor U3, two of bridge rectifier module BR
Ac input end is electrically connected with interface P4 and interface P5 respectively, cathode output end and ground terminal the GND2 electricity of bridge rectifier module BR
Connection is grounded after the cathode output end series resistance R8 of bridge rectifier module BR, the cathode output end of bridge rectifier module BR with
The anode of diode D2 is electrically connected, and is grounded after the cathode series capacitance C12 of diode D2, the cathode series resistance of diode D2
It is electrically connected, is electrically connected after power end+3.3V series voltage stabilizing diode DZ2 with ground terminal GND2, surely with power end+3.3V after R19
Pressure diode DZ2 is parallel with capacitor C13, and 4 feet and 7 feet of microprocessor U3 are electrically connected with power end+3.3V, microprocessor U3
10 foot series resistance R17 after be electrically connected with the cathode output end of bridge rectifier module BR, the series connection of 10 feet of microprocessor U3 is steady
It is electrically connected after pressure diode DZ1 with ground terminal GND2,11 feet of microprocessor U3 are electrically connected with ground terminal GND2, microprocessor U3
11 foot series capacitance C10 after be electrically connected with power end+3.3V, after the 1 foot series resistance R1 of microprocessor U3 with triode Q3
Base stage and triode Q7 collector electrical connection, the emitter of triode Q7 is electrically connected with ground terminal GND2, triode Q3's
It being electrically connected after emitter series resistance R12 with ground terminal GND2, the base stage of triode Q7 is electrically connected with the emitter of triode Q3,
The collector of triode Q3 is electrically connected with 4 feet of interface P3, with triode Q1's after the 14 foot series resistance R3 of microprocessor U3
The electrical connection of the collector of base stage and triode Q5, the emitter of triode Q5 are electrically connected with ground terminal GND2, the hair of triode Q1
It being electrically connected after emitter-base bandgap grading series resistance R14 with ground terminal GND2, the base stage of triode Q5 is electrically connected with the emitter of triode Q1, and three
The collector of grade pipe Q1 is electrically connected with 2 feet of interface P3, the base after the 13 foot series resistance R15 of microprocessor U3 with triode Q2
The electrical connection of the collector of pole and triode Q6, the emitter of triode Q6 are electrically connected with ground terminal GND2, the transmitting of triode Q2
It is electrically connected after the series resistance R16 of pole with ground terminal GND2, the base stage of triode Q6 is electrically connected with the emitter of triode Q2, three-level
The collector of pipe Q2 is electrically connected with 3 feet of interface P3, and the cathode output end of 1 foot and bridge rectifier module BR of interface P3 is electrically connected
It connects；Two lead-out wires of two core wires, 3 one end are electrically connected with interface P1 and interface P2 respectively, two extractions of two core wires, 3 other end
Line is electrically connected with interface P4 and interface P5 respectively, and interface P4 is electrically connected with interface P1, and interface P5 is electrically connected with interface P2；It is using
When of the invention, lamp plate is electrically connected with driving unit, the present invention at work, the control signal of 2 feet of microprocessor U2 output
The open and close of field-effect tube Q11 are controlled, so that generating the waveform coding of a short time in two core wires, which can be inputted
To 10 feet of microprocessor U3, microprocessor U3 is decoded control signal, and so, driving unit can be realized to lamp
The light modulation of plate；The present invention connects driving unit and control unit by using two core wires, i.e. two core wires can either reach power supply
Purpose, and can achieve the purpose that transmit data, so as to reduce cost.
The upper only embodiments of the present invention, are not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.All any modifications made in spirit and principles of the present invention are equal
Replacement, improvement etc., should all be included within scope of the presently claimed invention.
Claims (4)
1. a kind of two core wire RGB light adjusting circuit of outdoor low voltage, including control unit (1) and driving unit (2), it is characterised in that:
The driving unit (2) is electrically connected by two core wires (3) with control unit (1), and two core wire (3) is for powering and transmitting load
Wave signal.
2. two core wire RGB light adjusting circuit of outdoor low voltage according to claim 1, which is characterized in that described control unit (1)
Including supply convertor U1 and microprocessor U2, the IN foot of the supply convertor U1 is electrically connected with power supply+16V, the power supply
The EN foot of converter U1 is electrically connected by resistance R10 with power supply+16V, and the power supply+16V is grounded by capacitor C11, the electricity
The GND foot of source converter U1 is grounded, and the COMP foot of the supply convertor U1 is grounded after being sequentially connected in series capacitor C3 and resistance R5, institute
Be grounded after stating the FB foot series resistance R4 of supply convertor U1, after the FB foot series resistance R2 of the supply convertor U1 with interface
P1 is electrically connected, and is grounded after the SW foot differential concatenation zener diode D1 of the supply convertor U1, the supply convertor U1's
It is electrically connected after SW foot series capacitance C1 with the BS foot of supply convertor U1, after the SW foot series inductance L1 of the supply convertor U1
It is electrically connected, is grounded after the interface P1 series capacitance C2, the capacitor C2 is parallel with resistance R7, the microprocessor with interface P1
It is electrically connected after the 2 foot series resistance R9 of U2 with the grid of field-effect tube Q11, the source electrode ground connection of the field-effect tube Q11, the field
The drain electrode of effect pipe Q11 is electrically connected with interface P2, and 4 feet and 7 feet of the microprocessor U2 are electrically connected with power supply+5V, described micro-
5 feet and 6 feet of processor U2 are grounded after distinguishing series capacitance C5 and capacitor C6, the 5 feet series connection crystal oscillator X1 of the microprocessor U2
It being electrically connected afterwards with 6 feet of microprocessor U2,10 feet of the microprocessor U2 are electrically connected with the Vout foot of infrared receiving tube IR1,
The GND foot of the infrared receiving tube IR1 is grounded, electric with power supply+5V after the VCC foot series resistance R6 of the infrared receiving tube IR1
It connects, is grounded after the VCC foot series capacitance C7 of the infrared receiving tube IR1, the 11 feet ground connection of the microprocessor U2 is described micro-
It is electrically connected after the 11 foot series capacitance C4 of processor U2 with power supply+5V.
3. two core wire RGB light adjusting circuit of outdoor low voltage according to claim 2, which is characterized in that the driving unit (2)
Including bridge rectifier module BR and microprocessor U3, two ac input ends of the bridge rectifier module BR respectively with interface P4
It is electrically connected with interface P5, the cathode output end of the bridge rectifier module BR is electrically connected with ground terminal GND2, the bridge rectifier
It is grounded after the cathode output end series resistance R8 of module BR, the cathode output end of the bridge rectifier module BR is with diode D2's
Anode is electrically connected, and is grounded after the cathode series capacitance C12 of the diode D2, the cathode series resistance R19 of the diode D2
It is electrically connected, is electrically connected after the power end+3.3V series voltage stabilizing diode DZ2 with ground terminal GND2, institute with power end+3.3V afterwards
It states zener diode DZ2 and is parallel with capacitor C13,4 feet and 7 feet of the microprocessor U3 are electrically connected with power end+3.3V, institute
It is electrically connected after stating the 10 foot series resistance R17 of microprocessor U3 with the cathode output end of bridge rectifier module BR, the micro process
It is electrically connected after the 10 foot series voltage stabilizing diode DZ1 of device U3 with ground terminal GND2,11 feet and ground terminal of the microprocessor U3
GND2 is electrically connected, and is electrically connected after the 11 foot series capacitance C10 of the microprocessor U3 with power end+3.3V, the microprocessor
It is electrically connected after the 1 foot series resistance R1 of U3 with the collector of the base stage of triode Q3 and triode Q7, the hair of the triode Q7
Emitter-base bandgap grading is electrically connected with ground terminal GND2, is electrically connected after the emitter series resistance R12 of the triode Q3 with ground terminal GND2, institute
The base stage for stating triode Q7 is electrically connected with the emitter of triode Q3, the collector of the triode Q3 and the 4 feet electricity of interface P3
It connects, is electrically connected after the 14 foot series resistance R3 of the microprocessor U3 with the base stage of triode Q1 and the collector of triode Q5
Connect, the emitter of the triode Q5 is electrically connected with ground terminal GND2, after the emitter series resistance R14 of the triode Q1 with
Ground terminal GND2 electrical connection, the base stage of the triode Q5 are electrically connected with the emitter of triode Q1, the collection of the triode Q1
Electrode is electrically connected with 2 feet of interface P3, after the 13 foot series resistance R15 of the microprocessor U3 with the base stage of triode Q2 and three
The collector of pole pipe Q6 is electrically connected, and the emitter of the triode Q6 is electrically connected with ground terminal GND2, the hair of the triode Q2
It is electrically connected after emitter-base bandgap grading series resistance R16 with ground terminal GND2, the base stage of the triode Q6 and the emitter of triode Q2 are electrically connected
It connects, the collector of the triode Q2 is electrically connected with 3 feet of interface P3, and 1 foot of the interface P3 is with bridge rectifier module BR's
Cathode output end electrical connection.
4. two core wire RGB light adjusting circuit of outdoor low voltage according to claim 3, which is characterized in that two core wire (3) one
Two lead-out wires at end are electrically connected with interface P1 and interface P2 respectively, two lead-out wires difference of two core wire (3) other end
It is electrically connected with interface P4 and interface P5, the interface P4 is electrically connected with interface P1, and the interface P5 is electrically connected with interface P2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810985942.8A CN109041382B (en) | 2018-08-28 | 2018-08-28 | Two core wire RGB light adjusting circuit of outdoor low voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810985942.8A CN109041382B (en) | 2018-08-28 | 2018-08-28 | Two core wire RGB light adjusting circuit of outdoor low voltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109041382A true CN109041382A (en) | 2018-12-18 |
| CN109041382B CN109041382B (en) | 2019-12-03 |
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ID=64625498
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810985942.8A Active CN109041382B (en) | 2018-08-28 | 2018-08-28 | Two core wire RGB light adjusting circuit of outdoor low voltage |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118453A (en) * | 2011-11-16 | 2013-05-22 | 金德奎 | Light emitting diode (LED) tandem driving control circuit based on microcontroller and programming method of microcontroller |
| CN103167672A (en) * | 2011-12-09 | 2013-06-19 | 金德奎 | Light-emitting diode (LED) illumination power supply and drive control system |
| CN103687238A (en) * | 2013-12-13 | 2014-03-26 | 卫星电子（中山）有限公司 | Novel LED two-line dimming control circuit |
| CN203645862U (en) * | 2013-09-24 | 2014-06-11 | 西安石油大学 | Two-wire system LED emergency lamp |
| CN204441888U (en) * | 2015-03-20 | 2015-07-01 | 宋刚 | A kind of two-wire electronic switch off-state power supply circuits and intelligent switch |
| CN107959344A (en) * | 2017-10-20 | 2018-04-24 | 合肥成科电子科技有限公司 | A kind of intelligent integral backup power supply |
-
2018
- 2018-08-28 CN CN201810985942.8A patent/CN109041382B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118453A (en) * | 2011-11-16 | 2013-05-22 | 金德奎 | Light emitting diode (LED) tandem driving control circuit based on microcontroller and programming method of microcontroller |
| CN103167672A (en) * | 2011-12-09 | 2013-06-19 | 金德奎 | Light-emitting diode (LED) illumination power supply and drive control system |
| CN203645862U (en) * | 2013-09-24 | 2014-06-11 | 西安石油大学 | Two-wire system LED emergency lamp |
| CN103687238A (en) * | 2013-12-13 | 2014-03-26 | 卫星电子（中山）有限公司 | Novel LED two-line dimming control circuit |
| CN204441888U (en) * | 2015-03-20 | 2015-07-01 | 宋刚 | A kind of two-wire electronic switch off-state power supply circuits and intelligent switch |
| CN107959344A (en) * | 2017-10-20 | 2018-04-24 | 合肥成科电子科技有限公司 | A kind of intelligent integral backup power supply |
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| Publication number | Publication date |
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| CN109041382B (en) | 2019-12-03 |
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