CN106028513B - A kind of intelligent dimming controller suitable for the light modulation of large area space place - Google Patents
A kind of intelligent dimming controller suitable for the light modulation of large area space place Download PDFInfo
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- CN106028513B CN106028513B CN201610392588.9A CN201610392588A CN106028513B CN 106028513 B CN106028513 B CN 106028513B CN 201610392588 A CN201610392588 A CN 201610392588A CN 106028513 B CN106028513 B CN 106028513B
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of intelligent dimming controllers suitable for the light modulation of large area space place, and including internal dimming module, by-pass switch, having air switch is connected between the internal dimming module and externally fed power supply；The internal dimming module includes MCU main control modules, internal electric source, the stem grafting point module being connect with MCU main control modules, the photoelectrical coupler being connect with MCU main control modules, the bidirectional triode thyristor circuit being connect with MCU main control modules；Choke coil, and bidirectional triode thyristor circuit connection load output plate is inscribed in the bidirectional triode thyristor circuit；By-pass switch is connected between the load output plate and air switch；The MCU main control modules are connected by 485 communicating circuits with control terminal, with PC machine respectively；485 communicating circuits connect two input pins of MCU main control modules with stem grafting point module respectively；The bidirectional triode thyristor circuit connects the output pin of MCU main control modules；The stem grafting point module connects current feedback module.
Description
Technical field
The present invention relates to engineering circuit control field, more particularly, to a kind of intelligence suitable for the light modulation of large area space place
It can light adjusting controller.
Background technology
Existing architectural lighting control system mainly carries out light source ON/OFF control, usually bright and clear on daytime
When, light-source brightness is still larger, it is impossible to carry out rational illuminance control and scenery control according to environment.These unnecessary photographs
It is bright to cause a large amount of waste of energy.Light source in actual use, to meet the illumination under different time, environment, atmosphere
Degree and light aesthetic design acquirement are effectively prevented from illuminating dark angle and reduce power consumption, and light source usually needs to increase light modulation work(
It can, you can controllable type adjusting is carried out to illuminance.And general lamps and lanterns and without dimming behavior, even the lamps and lanterns with light modulation,
Also it can not meet requirements at the higher level of the people to dimming effect.Therefore light adjusting controller of arranging in pairs or groups usually is needed.However, at present on the market
Light adjusting controller, the following defect of generally existing：
1. existing light adjusting controller protectiveness is poor, once there is systemic breakdown, it is impossible to continue to ensure the normal of controlled area
Illumination, it is impossible to which the illumination accident of timely processing burst does not have power failure memory function；
2. existing light adjusting controller scene setting is single, subregion can not be set, can not be carried out according to the needs of owner interim
Reasonable variation；
3. existing light adjusting controller performance is unstable, when light modulation is transferred to compared with low-light (level), it is susceptible to flicker.If control
System and lighting apparatus do not match, and are likely to result in lights or flicker, and the driving circuit and light source of light source may be made
Into damage；
4. some products of existing light adjusting controller do not have soft start function, it is impossible to well control close, power-off source when pair
Even if influence of the impact and power grid overvoltage of light bulb to lamp life using light modulation, also can not effectively extend expensive lamps and lanterns
Service life；
5. the type of existing light adjusting controller belong to after along phase-controlled dimming, lighting network control power is small, weak heat-dissipating, cost
It is very high, and it is complicated to manufacture flow；
Even 6. silicon-controlled forward position phase-cut dimming, because the attribute of silicon-controlled half control switch, only firing current
Function, and electric current cannot be complete switched off, though be adjusted to it is minimum still there is weak current to pass through, and the characteristic that LED micro-currents shine makes
Handy controllable silicon light modulation largely deposits the phenomenon that LED is still with the presence of Weak-luminescence after shut-off, before becoming many on the market at present
Along the problem of phase-cut dimming product.
7. the lamps and lanterns variety protection of pair light modulation is fastidious, it is difficult to carry out light modulation matching with various types of lamps and lanterns；
The bearing power that 8. illumination range of light modulation is limited, can bear is smaller, it is impossible to meet modern architecture large area sky
Between high power requirements, can not ideally control device be dimmed；
9. without fire coupling, not expansible control (linking with fire-fighting signal) for emergency lighting or receive third
Method, system controls.
10. not expansible connect current feedback module, it is impossible to which real-time query current conditions carry out electricity metering.
Invention content
To solve deficiency of the prior art, the object of the present invention is to provide a kind of dimming behavior is good and power stability,
To lamps and lanterns matching rate height, can cope with burst illumination accident, power saving, can prolonging service lives of lamps be suitable for large area space place tune
The intelligent dimming controller of light.
To achieve the above object, the technical scheme is that：A kind of intelligence suitable for the light modulation of large area space place
Light adjusting controller including internal dimming module, by-pass switch, connects between the internal dimming module and externally fed power supply
Having air switch；The internal dimming module includes MCU main control modules, internal electric source, the stem grafting being connect with MCU main control modules
Point module, the photoelectrical coupler being connect with MCU main control modules, the bidirectional triode thyristor circuit being connect with MCU main control modules；Described
Internal electric source is connect by transformation power supply circuit with MCU main control modules and photoelectrical coupler；In the bidirectional triode thyristor circuit
Choke coil is connect, and bidirectional triode thyristor circuit connection load output plate, load output plate are connect with external loading；The load is defeated
By-pass switch is connected between ejecting plate and air switch；The MCU main control modules are whole with control respectively by 485 communicating circuits
End is connected with PC machine；485 communicating circuits connect two input pins of MCU main control modules with stem grafting point module respectively；
The bidirectional triode thyristor circuit connects the output pin of MCU main control modules；It is anti-that the stem grafting point module connects electric current
Present module；The bidirectional triode thyristor circuit includes resistance R5, and described resistance R5 one end connects MCU main control modules, and R5 is another
A pole of photodiode PD1 in end connection TTL photoelectric coupled circuits, another pole and the MCU main control module phases of photodiode PD1
Even；There are one NPN type triode Q1, the C1 poles connecting resistance R4 of NPN type triode Q1, resistance R4 for tool in the TTL photoelectric coupled circuits
It is in parallel with resistance R3 to be followed by 12V power supplys；The C2 poles of the other end connection NPN type triode Q2 of the resistance R3；The NPN
The B2 poles of the E1 poles connection NPN type triode Q2 of type triode Q1, the connection of E2 poles the resistance R2, resistance R2 of NPN type triode Q2
Connect the gate pole of silicon-controlled T1；The B1 poles of the NPN type triode Q1 connect resistance R6, and resistance R6 is connected with choke coil CC
It connects, the choke coil CC is connect with silicon-controlled T1, and forms parallel circuit A with capacitance C1 and resistance R1；The parallel connection electricity
Road A and resistance RLAfter connection, then with by-pass switch SW2 compositions parallel circuit B；It is opened by air at the L ends of the parallel circuit B
It closes SW1 and is connected to externally fed power supply, the N-terminal of parallel circuit B connects load output plate；
The current rise time of the choke coil is more than 100us.
Preferably, programmable logic controller (PLC), memory storage chip are included in the MCU main control modules.
Preferably, the air switch can be c-type 6A or 10A or 16A or 20A breakers.
Preferably, the control terminal can be scenery control panel, it is clock control panel, mobile phone, tablet computer, red
Outer remote controler, illuminance transducer, infrared dynamic and static sensor.
Preferably, 485 communicating circuits include U1 chips, 1 pin and 4 pins of the U1 chips connect respectively
MCU main control modules, 2 pins of U1 chips and the interconnection of 3 pins are followed by MCU main control modules, and 2 pins are mutually interconnected with 3 pins
GND is connect by resistance R9 after connecing；8 pins of the U1 chips meet VCC, and 5 pins of U1 chips connect GND, 6 pins of U1 chips
The anode of zener diode D2 is connect by slide rheostat K1, and the anode of zener diode D2 connects VCC, voltage stabilizing by resistance R7
The cathode of diode D2 meets one end of capacitance C2, another termination VCC of capacitance C2；7 pins of the U1 chips pass through slip
Rheostat K2 connects the cathode of zener diode D1, and the cathode of zener diode D1 meets GND by resistance R8, and zener diode D1 is just
Pole connects the cathode of zener diode D2.
Beneficial effects of the present invention：With silicon-controlled forward position phase-cut dimming technology, cost is lower, facilitates production, adjusts simultaneously
High, efficient, small, light-weight, the easy remote operation of precision is saved, is suitble to the light modulation of conventional light fixtures various on the market.Often
Primary Ioops with independent air switch, prevent short-circuit effective protection circuit element.Independent bypass is carried per primary Ioops
Switch facilitates debugging, maintenance or emergency pressure to light.A variety of light modulation scene selections, and remember with Episodic Memory and power-off
Recall function.Dimming curve mitigates, and power stability is high, is less prone to " stroboscopic bad lamp " phenomenon, while solve controllable silicon light modulation
The problem of LED can not be complete switched off in circuit.Due to having the function of soft start, limitation surge voltage and adjustment protection, light modulation
Stablize flicker free, prolonging service lives of lamps, suitable for the use demand of large area space high-power dimming.It can by stem grafting point module
Connect external illuminance transducer or infrared dynamic and static sensor, current feedback system or fire-fighting system equipment or third party producer face
Plate, wireless coding chip or infrared coding chip, expanded function are powerful.
Description of the drawings
Fig. 1 is the system block diagram of the present invention.
Fig. 2 is the circuit connection diagram of the light adjusting controller with 12 circuits of the present invention.
Fig. 3 is the bidirectional triode thyristor circuit diagram of the present invention.
Fig. 4 is the 485 communicating circuit figures of the present invention.
Specific embodiment
As shown in Figure 1,2,3, 4, a kind of intelligent dimming controller suitable for the light modulation of large area space place, including inside
Light-adjusting module, by-pass switch 17 connect having air switch 2 between the internal dimming module and externally fed power supply 1；It is described
Internal dimming module include MCU main control modules 5, internal electric source 3, the stem grafting point module 10 being connect with MCU main control modules 5, with
The photoelectrical coupler 14 that MCU main control modules 5 connect, the bidirectional triode thyristor circuit 15 being connect with MCU main control modules 5；Described is interior
Portion's power supply 3 is connect by transformation power supply circuit 4 with MCU main control modules 5 and photoelectrical coupler 14；The bidirectional triode thyristor circuit
15 inscribed choke coils 16, and bidirectional triode thyristor circuit 15 connects load output plate 18, load output plate 18 connects with external loading 19
It connects；By-pass switch 17 is connected between the load output plate 18 and air switch 2；The MCU main control modules 5 pass through
485 communicating circuits 6 are connected respectively with control terminal 9, PC machine 7；485 communicating circuits 6 connect respectively with stem grafting point module 10
Two input pins of MCU main control modules 5；The bidirectional triode thyristor circuit 15 connects the output pin of MCU main control modules 5；Institute
The stem grafting point module 10 stated connects current feedback module.
Programmable logic controller (PLC), memory storage chip are included in the MCU main control modules 5.
The air switch 2 can be c-type 6A or 10A or 16A or 20A breakers.
The control terminal 9 can be scenery control panel, clock control panel, mobile phone, tablet computer, infrared remote control
Device, illuminance transducer, infrared dynamic and static sensor.
The bidirectional triode thyristor circuit 15 includes resistance R5, described resistance R5 one end connection MCU main control modules 5, R5
A pole of photodiode PD1 in other end connection TTL photoelectric coupled circuits, another pole and the MCU master control moulds of photodiode PD1
Block 5 is connected；There are one NPN type triode Q1, the C1 poles connecting resistance R4 of NPN type triode Q1, electricity for tool in the TTL photoelectric coupled circuits
R4 is in parallel with resistance R3 is followed by 12V power supplys for resistance；The C2 poles of the other end connection NPN type triode Q2 of the resistance R3；It is described
NPN type triode Q1 E1 poles connection NPN type triode Q2 B2 poles, the E2 poles connection resistance R2 of NPN type triode Q2, electricity
Hinder the gate pole of the silicon-controlled T1 of R2 connections；The B1 poles connection resistance R6, resistance R6 and choke coil CC phases of the NPN type triode Q1
Connection, the choke coil CC are connect with silicon-controlled T1, and form parallel circuit A with capacitance C1 and resistance R1；The parallel connection
Circuit A and resistance RLAfter connection, then with by-pass switch SW2 compositions parallel circuit B；The L ends of the parallel circuit B pass through air
Switch SW1 is connected to externally fed power supply 1, and the N-terminal of parallel circuit B connects load output plate 18.MCU main control modules 5 pass through control
The break-make of silicon-controlled T1 and then the conducting for controlling load.
The current rise time of the choke coil 16 is more than 100us.
485 communicating circuits 6 include U1 chips, and 1 pin and 4 pins of the U1 chips connect MCU master controls respectively
Module 5,2 pins of U1 chips and the interconnection of 3 pins are followed by MCU main control modules 5, and lead to after 2 pins and the interconnection of 3 pins
It crosses resistance R9 and meets GND；8 pins of the U1 chips meet VCC, and 5 pins of U1 chips meet GND, and 6 pins of U1 chips pass through cunning
Dynamic rheostat K1 connects the anode of zener diode D2, and the anode of zener diode D2 connects VCC, zener diode by resistance R7
The cathode of D2 meets one end of capacitance C2, another termination VCC of capacitance C2；7 pins of the U1 chips pass through slide rheostat
K2 connects the cathode of zener diode D1, and the cathode of zener diode D1 meets GND by resistance R8, and zener diode D1 anodes connect surely
Press the cathode of diode D2.
Include programmable logic controller (PLC), memory storage chip in the MCU main control modules 5 of the present invention, utilized by PC machine 5
System software package 8 writes the instruction into programmable logic controller (PLC), and wherein system software package 8 includes system debug software, system diagram
Shape monitoring software and other mobile Internet control softwares.Or it is carried out in control terminal 9 in advance using debugging programming software
It pre-sets, then the scene set is called by 485 communicating circuits 6, instruction is transmitted to MCU main control modules 5.It is any
Scene can set subregion in debugging programming software, realize zonal control, and expansible scene.When light adjusting system circuit occurs
During failure, being closed by-pass switch 17 makes externally fed power supply 1 be led directly to load output plate 18, ensures normal illumination or electric appliance
Normal work.Bidirectional triode thyristor circuit 15 is controlled to change its output by MCU main control modules 5 and photoelectrical coupler 14 has one
Section is more than the fade time of 8us, and impact when can greatly reduce open and close power supply to lamps and lanterns can be such that dimming curve more mitigates,
Choke coil 16 effectively controls the output of higher hamonic wave simultaneously, and the rise time of electric current is made to be more than 100us, is made in dimming curve
" burr " is partly reduced as far as, and dimming curve is more smooth, and soft start realizes that the gradual change of light is gentle and stablizes, and prevents out
Existing " stroboscopic bad lamp " phenomenon.The dimming curve of controllable silicon light modulation is one section of sine wave, although the LED of controllable silicon light modulation have can not
The characteristic of shutdown, but sine wave and X-axis it is intersecting when, it is possible to turned off.It is bent by adjusting light modulation using this point
Line, when dimming curve and X-axis intersection point, MCU main control modules 5 drive bidirectional triode thyristor circuit 15 by photoelectrical coupler 14, will
Dimming curve is extended for a short-term, you can to realize that LED is turned off.Final signal is stable defeated by being converted into after choke coil 16
Go out voltage or output current, be applied in all kinds of loads 19 by load output plate 18, form final Lighting control state.It is logical
Light adjusting controller is crossed, the light modulation scene pre-set can be called, can also be set by PC machine 7 and control terminal 9
The scene put is not dim, only on and off, can be with scene set：The combination of light scene or illumination and curtain,
The equipment linkages such as air-conditioning, conference system, stereo set.Stem grafting point module 10 connects current feedback module, can real-time query electric current feelings
Condition can also connect external illuminance transducer or infrared dynamic and static sensor 11, fire-fighting system equipment or third party producer panel 12, nothing
Line coding chip or 13 grade of infrared coding chip carry out Function Extension.The foregoing is merely illustrative of the preferred embodiments of the present invention,
It is not intended to limit the invention, any modification, equivalent replacement or improvement for being made all within the spirits and principles of the present invention etc.,
It should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of intelligent dimming controller suitable for the light modulation of large area space place, including internal dimming module, by-pass switch
(17), which is characterized in that having air switch (2) is connected between the internal dimming module and externally fed power supply (1)；It is described
Internal dimming module include MCU main control modules (5), internal electric source (3), the stem grafting point module being connect with MCU main control modules (5)
(10), the photoelectrical coupler (14) being connect with MCU main control modules (5), the bidirectional triode thyristor electricity being connect with MCU main control modules (5)
Road (15)；The internal electric source (3) is connected by transformation power supply circuit (4) and MCU main control modules (5) and photoelectrical coupler (14)
It connects；Choke coil (16), and bidirectional triode thyristor circuit (15) connection load output plate is inscribed in the bidirectional triode thyristor circuit (15)
(18), load output plate (18) is connect with external loading (19)；Connect between the load output plate (18) and air switch (2)
It is connected to by-pass switch (17)；The MCU main control modules (5) by 485 communicating circuits (6) respectively with control terminal (9), PC machine
(7) it is connected；Two inputs that 485 communicating circuits (6) connect MCU main control modules (5) with stem grafting point module (10) respectively are drawn
Foot；The bidirectional triode thyristor circuit (15) connects the output pin of MCU main control modules (5)；The stem grafting point module (10) connects
Current feedback module；
The bidirectional triode thyristor circuit (15) includes resistance R5, described resistance R5 one end connection MCU main control modules (5), R5
A pole of photodiode PD1 in other end connection TTL photoelectric coupled circuits, another pole and the MCU master control moulds of photodiode PD1
Block (5) is connected；Have in the TTL photoelectric coupled circuits there are one NPN type triode Q1, the C1 poles connecting resistance R4 of NPN type triode Q1,
Resistance R4 is in parallel with resistance R3 to be followed by 12V power supplys；The C2 poles of the other end connection NPN type triode Q2 of the resistance R3；Institute
The B2 poles of the E1 poles connection NPN type triode Q2 of the NPN type triode Q1 stated, the E2 poles connection resistance R2 of NPN type triode Q2,
The gate pole of the silicon-controlled T1 of resistance R2 connections；The connection of B1 poles the resistance R6, resistance R6 and choke coil CC of the NPN type triode Q1
It is connected, the choke coil CC is connect with silicon-controlled T1, and forms parallel circuit A with capacitance C1 and resistance R1；It is described and
Join circuit A and resistance RLAfter connection, then with by-pass switch SW2 compositions parallel circuit B；The L ends of the parallel circuit B pass through sky
Air cock SW1 is connected to externally fed power supply (1), and the N-terminal of parallel circuit B connects load output plate (18)；
The current rise time of the choke coil (16) is more than 100us.
2. a kind of intelligent dimming controller suitable for the light modulation of large area space place according to claim 1, feature
It is, programmable logic controller (PLC), memory storage chip is included in the MCU main control modules (5).
3. a kind of intelligent dimming controller suitable for the light modulation of large area space place according to claim 1, feature
It is, the air switch (2) can be c-type 6A or 10A or 16A or 20A breakers.
4. a kind of intelligent dimming controller suitable for the light modulation of large area space place according to claim 1, feature
Be, the control terminal (9) can be scenery control panel, clock control panel, mobile phone, tablet computer, IR remote controller,
Illuminance transducer, infrared dynamic and static sensor.
5. a kind of intelligent dimming controller suitable for the light modulation of large area space place according to claim 1, feature
It is, 485 communicating circuits (6) include U1 chips, and 1 pin and 4 pins of the U1 chips connect MCU master control moulds respectively
After block (5), 2 pins of U1 chips and the interconnection of 3 pins are followed by MCU main control modules (5), and 2 pins and 3 pins are connected with each other
GND is connect by resistance R9；8 pins of the U1 chips meet VCC, and 5 pins of U1 chips meet GND, and 6 pins of U1 chips pass through
Slide rheostat K1 connects the anode of zener diode D2, and the anode of zener diode D2 connects VCC, two pole of voltage stabilizing by resistance R7
The cathode of pipe D2 meets one end of capacitance C2, another termination VCC of capacitance C2；7 pins of the U1 chips are by sliding variable resistance
Device K2 connects the cathode of zener diode D1, and the cathode of zener diode D1 meets GND by resistance R8, and zener diode D1 anodes connect
The cathode of zener diode D2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610392588.9A CN106028513B (en) | 2016-06-03 | 2016-06-03 | A kind of intelligent dimming controller suitable for the light modulation of large area space place |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610392588.9A CN106028513B (en) | 2016-06-03 | 2016-06-03 | A kind of intelligent dimming controller suitable for the light modulation of large area space place |
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| CN106028513B true CN106028513B (en) | 2018-06-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203279250U (en) * | 2013-03-21 | 2013-11-06 | 惠州市欢腾智能科技有限公司 | High-power dimming controller |
| CN104322145A (en) * | 2012-03-20 | 2015-01-28 | 皇家飞利浦有限公司 | LED string driver circuit including a charge control diode for a capacitor |
| CN205693931U (en) * | 2016-06-03 | 2016-11-16 | 杭州荣亚科技有限公司 | A kind of high-power intelligent dimming controller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6171590B2 (en) * | 2013-06-06 | 2017-08-02 | 三菱電機株式会社 | Lighting device and lighting device |
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2016
- 2016-06-03 CN CN201610392588.9A patent/CN106028513B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104322145A (en) * | 2012-03-20 | 2015-01-28 | 皇家飞利浦有限公司 | LED string driver circuit including a charge control diode for a capacitor |
| CN203279250U (en) * | 2013-03-21 | 2013-11-06 | 惠州市欢腾智能科技有限公司 | High-power dimming controller |
| CN205693931U (en) * | 2016-06-03 | 2016-11-16 | 杭州荣亚科技有限公司 | A kind of high-power intelligent dimming controller |
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Effective date of registration: 20200426 Address after: Room 211, building 2, No. 1418-60, Moganshan Road, Hangzhou, Zhejiang Province Patentee after: HANGZHOU JUE LANG TECHNOLOGY Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310005 Moganshan Road No. 2 1418-60 building room 207 (Shangcheng science and technology industrial base) Patentee before: HANGZHOU RONGYA TECHNOLOGY Co.,Ltd. |