CN106506040A - Keep the method and device of power line communication carrier-quality - Google Patents
Keep the method and device of power line communication carrier-quality Download PDFInfo
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- CN106506040A CN106506040A CN201510561031.9A CN201510561031A CN106506040A CN 106506040 A CN106506040 A CN 106506040A CN 201510561031 A CN201510561031 A CN 201510561031A CN 106506040 A CN106506040 A CN 106506040A
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- power line
- line communication
- communication carrier
- electrically connected
- chokes
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Abstract
A kind of method for keeping power line communication carrier-quality, comprises the steps of：One of which and the load of the live wire and ground wire of electric lines of force is electrically connected at a switch module, and is electrically connected at another one and the load of the live wire and ground wire of electric lines of force with an at least chokes component.Chokes component has the iron core of a corresponding B-H loop.When switch module is not turned on, the iron core operation of the chokes component is can transmit the power line communication carrier wave and gives the load to avoid the core sataration in the zero crossings of B-H loop.When switch module is turned on, the iron core of the chokes component operate in the saturation region of the B-H loop so that the core sataration and do not transmit the power line communication carrier wave and give the load.So just can effectively ensure that holding power line communication carrier-quality and avoid long range propagation from causing distortion.
Description
Technical field
The present invention relates to a kind of control method of power line communication carrier wave, more particularly to a kind of guarantor
Hold the method and device of power line communication carrier-quality.
Background technology
Power line communication control system is control technology popular in recent years, and advantage is using existing
Electric lines of force can be controlled, but be used for when controlling light-emitting device or general electrical equipment, run into
Problem include：Which is easily subject to existing electric equipment poor compatibility, power line communication carrier wave
The noise jamming of his electric equipment generation, overall power are very high, and transmission range is easy when longer
There is the problem of noise and signal distortion.
Therefore, how to realize power line communication control system and existing electric equipment compatibility,
Capacity of resisting disturbance is improved, energy-saving effect is improved and is avoided noise and signal that long range propagation is produced
Distortion, is an important problem.
Content of the invention
It is an object of the invention to provide a kind of holding power line communication for improving prior art is carried
The method of wave mass.
The present invention keep power line communication carrier-quality method some enforcement aspects in order to
Keep a signal with the power line communication carrier wave between a live wire, a ground wire and a load
Quality, the method includes the steps of：With the fire that a switch module is electrically connected at the electric lines of force
The one of which and the load of line and ground wire, and the electricity is electrically connected at an at least chokes component
The another one of the live wire and ground wire of the line of force and the load, the chokes component have a corresponding magnetic hysteresis
The iron core of curve；When the switch module is not turned on, the iron core of the chokes component is operated in the magnetic
The zero crossings of stagnant curve can transmit the power line communication carrier wave and give to avoid the core sataration
The load；And when the switch module is turned on, the iron core of the chokes component is operated in the magnetic hysteresis
The saturation region of curve so that the core sataration and do not transmit the power line communication carrier wave and give the load.
The method of the holding power line communication carrier-quality of the present invention, the switch module are not turned on
Period need not be in the more zero crossings of alternating current.
The present invention keeps the device of power line communication carrier-quality, and there is a fire in order to keep one
The signal quality of the power line communication carrier wave between line, a ground wire and a load, the device bag
Contain：One switch module, is electrically connected at the one of which of the live wire and ground wire of the electric lines of force and is somebody's turn to do
Load；And an at least chokes component, be electrically connected at the electric lines of force live wire and ground wire another
Person and the load, the chokes component have the iron core of a corresponding B-H loop, in the switches set
When part is not turned on, the operation of the iron core of the chokes component the B-H loop zero crossings avoiding
The core sataration and can transmit the power line communication carrier wave and give the load, and in the switch module
During conducting, the iron core of the chokes component is operated in the saturation region of the B-H loop so that the iron core is full
With and do not transmit the power line communication carrier wave and give the load.
The device of the holding power line communication carrier-quality of the present invention, should in some enforcement aspects
Load include an electrical equipment body, an acrossing the line filter capacitor and one prevent electromagnetic wave propagation and/
Or the wave filter for receiving；The holding transmission quality device also includes that a coupling assembly and electrically connects
The isolation module being connected between the wave filter and the coupling assembly, the isolation module is in the switches set
When part is not turned on, isolation external disturbance gives the electrical equipment to transmit glitch-free power line communication carrier wave
Body, and the power line communication carrier wave is not by acrossing the line filter capacitor absorption.
The device of the holding power line communication carrier-quality of the present invention includes that one is electrical with the live wire
First wiring of connection, second wiring being electrically connected with the ground wire and an isolation module, should
The quantity of chokes component have multiple, at least include a live wire for being electrically connected at the electric lines of force and
The another one of ground wire and the first chokes component of the load, and belong to the isolation module one
Two chokes components and one the 3rd chokes component, the second chokes component are electrically connected with this and first connect
Line, the 3rd chokes component are electrically connected with second wiring.
The device of the holding power line communication carrier-quality of the present invention is gone back in some enforcement aspects
Including a socket, the second chokes component and the 3rd chokes component are arranged in the socket, should
Second chokes component is electrically connected between first wiring and the Electromagnetic interference filter, and the 3rd
Chokes component is electrically connected between second wiring and the wave filter.
The device of the holding power line communication carrier-quality of the present invention is gone back in some enforcement aspects
Including a plug, the second chokes component and the 3rd chokes component are arranged in the plug, should
Second chokes component is electrically connected between first wiring and the wave filter, the 3rd chokes component
It is electrically connected between second wiring and the wave filter.
The device of the holding power line communication carrier-quality of the present invention is gone back in some enforcement aspects
Including a repeater, the repeater has a repeat circuit, at least two inputs and at least two defeated
Go out end, one group is electrically connected with the second chokes component between input and outfan, another group defeated
Enter and between end and outfan, be electrically connected with the 3rd chokes component, and the repeater is a long range
The repeater of the one-to-one type of tandem signal, or a pair many types of repeaters of a tapped off signal.
The device of the holding power line communication carrier-quality of the present invention, the magnetic conductance of the chokes component
Rate is more than or equal to 1000 Henry/meter.
The device of the holding power line communication carrier-quality of the present invention is gone back in some enforcement aspects
Including two match circuits, respectively the match circuit be electrically connected with first wiring and second wiring it
Between and be respectively arranged at first wiring and the second wiring formation circuit two ends, with one
High-voltage capacitance and one have two-wire characteristic impedance resistance.
The device of the holding power line communication carrier-quality of the present invention, should in some enforcement aspects
The computing formula of the characteristic impedance of the two-wire of resistance is：
D therein is first wiring and second wiring two being electrically connected with the ground wire
The distance of wire center, diameters of the d for wire.
The beneficial effects of the present invention is：
1. interfering in order to avoid power line communication carrier wave and ac signal, the present invention exist
Supply of electric power side coordinates the switching cycle of switch module and operation in the B-H loop of chokes component
Different qualities, can be effectively ensured holding power line communication carrier-quality.
2. in order to avoid the acrossing the line filter capacitor of electrical equipment body absorbs power line communication carrier wave,
The present invention coordinates coupling assembly and another two groups of chokes components in electric power output side to ensure electric lines of force
Communication carrier-quality.
3., in order to avoid long range propagation causes distortion, the present invention is using with two-wire characteristic impedance
Match circuit, it is thus ensured that power line communication carrier wave will not the distortion because of long range propagation.
Description of the drawings
Other features and effect of the present invention, in describing in detail in the embodiment with reference to schema
Clearly present, wherein：
Fig. 1 is a circuit block diagram, illustrates that the present invention is carried in order to realize holding power line communication
The embodiment of the holding transmission quality device of the method for wave mass；
Fig. 2 is an oscillogram, and B-H loop and the output of the chokes component of the present embodiment are described
Electric current；
Fig. 3 is an oscillogram, and ac signal, the alternating voltage carrier wave of the present embodiment are described
And integrated signal and the output current of power line communication carrier wave；
Fig. 4 is a schematic diagram, illustrates to calculate two wire centers of two-wire characteristic impedance
Distance and diameter of wire；
Fig. 5 is a schematic diagram, illustrates that the isolation module of the present embodiment is arranged at basic controller
And between load；
Fig. 6 is a schematic diagram, and the embodiment that isolation module is arranged in socket is described；
Fig. 7 is a schematic diagram, illustrates that isolation module is arranged on another embodiment in plug；
Fig. 8 is a schematic diagram, and an enforcement state of the holding transmission quality device of the present invention is described
Sample has the repeater of multiple chokes components and one group of one-to-one type；
Fig. 9 is a schematic diagram, and another enforcement of the holding transmission quality device of the present invention is described
Aspect has the repeater of multiple chokes components and one group of a pair two type.
Specific embodiment
Before the present invention is described in detail, it shall be noted that in the following description content, it is similar to
Component be to be represented with being identically numbered.
Fig. 1 to Fig. 3 is referred to, in embodiments of the invention, one keeps transmission quality device 100
In order to realize the method for keeping 203 mass of power line communication carrier wave.
The holding transmission quality device 100 includes a basic controller 1, the basic controller 1
Couple including a control unit 10, a switch module 111, one first chokes component 112,
Component 12 and a wireless transmission unit 13.It should be noted that, the switch module 111 of the present embodiment
The live wire 101 and the first chokes component 112 for being electrically connected at electric lines of force is electrically connected at electricity
One ground wire 102 of the line of force.However, in other embodiment, if coordinate corresponding control mode and
First chokes component 112 is electrically connected at the ground wire 102 of electric lines of force and the first chokes component
112 live wires 101 for being electrically connected at electric lines of force, fall within the application category of the present invention.
Wireless transmission unit 13 is electrically connected with control unit 10, can receive from a remote control 8
Wireless signal give control unit 10, be loaded with a control instruction in the wireless signal of remote control 8,
Control unit 10 is exactly to form a power line communication carrier wave 203 according to the control instruction, and by coupling
Seaming element 12 is coupled and transmits the power line communication carrier wave 203 gives load 3.In other embodiment,
Also can by the wireless transmission unit 13 with a network (Ethernet) transmission unit (such as：Wireless network
Interface) replace, the network signal that network transmitting unit reception is loaded with the control instruction gives the control
Unit processed 10, also belongs to scope of the invention.
Fig. 1 and Fig. 2 is referred to, the first chokes component 112 has a corresponding magnetic hysteresis (B-H) curve
Iron core (not shown), and B-H loop has a unsaturated area and a saturation region (with void in Fig. 2
Line is separated).It is with high magnetic capacity (μ in the present embodimentr=fabrication of iron core high frequency 20000) is gripped
Stream circle, as long as be obtained the inductance of high inductance value around upper a few.When power signal disconnect one of short duration
Time (live wire and zero line start simultaneously), the electric current for flowing into load 3 is zero, and this is to high frequency choke
For circle be exactly bias current be zero, so choke coil iron core operation B-H loop zero point
Near, due to power line carrier signal electric current less, even if could be used without the ultra-high conducting of air gap
Magnetic coefficient iron core, this kind of small current will not also allow core sataration, and reach and ensure transmission quality
Effect.Switch module 111 is the electronic type solid-state switch of load current 20A or so, in order to control
Whether electric power processed turns on, and during electric power is turned on, the inductance of the first chokes component 112 is almost
Zero (core sataration).During power cut carries out data communication, the first chokes component 112
Inductance value reverts to the millihenry (mH) of several units.
Fig. 1 and Fig. 3 is referred to, when the switch module 111 is not turned on (t1) when, the first chokes component
112 iron core operation is can transmit with avoiding the core sataration in the zero crossings of the B-H loop
One power line communication carrier wave 203 gives the load 3.When the switch module 111 is turned on, this
The iron core of one chokes component 112 operate in the saturation region of the B-H loop so that the core sataration and
Transmit the ac signal 201 and give the load 3.It should be noted that existing electric lines of force is logical
News carrier wave just must can make power line communication carrier wave have higher signal in the more zero point of alternating current
Quality, of the invention then because using choke coil hysteresis curve characteristic, the switch module 111 is not
(t during conducting1) power line communication carrier wave need not be also can guarantee that in the more zero crossings of alternating current
Signal quality.
Refering to Fig. 1 and Fig. 4, transmission quality device 100 is kept also to include one with the live wire 101
The second wiring 104 that the first wiring 103, being electrically connected with is electrically connected with the ground wire 102,
And two match circuits 5, each match circuit 5 is electrically connected with the first wiring 103 and the second wiring 104
Between and be respectively arranged at 104 formation of the first wiring 103 and the second wiring circuit two ends,
There is a high-voltage capacitance 51 and a resistance 52 with two-wire characteristic impedance, in order to avoid long away from
From transmission signal distortion.
The computing formula of the characteristic impedance of the two-wire of the resistance 52 isD therein is
First wiring 103 and the distance of second 104 liang of wire centers of wiring, d are the first wiring 103
And second wiring 104 wire diameter.So that the street lamp of outdoor setting is as load 3 as an example,
Per kilometer arranges multigroup load 3, selects according to the present invention and meets the calculating of afore-mentioned characteristics formula of impedance
Go out the resistance value of resistance 52, it is possible to overcome power line communication carrier wave 203 to pass through long-distance
Defeated distortion phenomenon.
Fig. 1 and Fig. 3 is referred to, in the present embodiment, electric lines of force 101 is to the transmission between load 3
Distance exceedes the distance that power line communication carrier wave 203 can produce standing wave, for example, it is assumed that
Transmission frequency is the electric wave signal of 200kHz, then half-wave of the electric wave signal in conductor is grown up
About 500 meters, standing wave formula for half-wavelength integral multiple, to transmission more than 500 meters away from
From, you can adopt the technology of the present invention to avoid the distorted signals phenomenon that standing wave is produced, this belongs to
The application category of the present invention.
Refering to Fig. 5, Fig. 1, the load 3 is coordinated to include that an electrical equipment body 31 and prevents electromagnetism
Ripple propagate and/or receive wave filter 32, the wave filter 32 can be one have electromagnetic interference
(EMI) filtering unit of characteristic, a filtering unit with Electronmagnetic Stamina (EMS) characteristic, or
The filtering unit of one electromagnetic compatibility (EMC) characteristic for having electromagnetic interference and Electronmagnetic Stamina concurrently.Filter
Ripple device 32 simultaneously has an acrossing the line filter capacitor Cx.Transmission quality device 100 is kept also to wrap
An isolation module 110 being electrically connected between the wave filter 32 and the coupling assembly 12 is included,
The isolation module 110 is in the switch module 111 in being not turned on (t1) when isolation external disturbance passing
Defeated glitch-free power line communication carrier wave 203 gives the electrical equipment body 31.In the present embodiment, isolation
Module 110 has one second chokes component 113 and one the 3rd chokes component 114, the isolation mode
The second chokes component 113 of block 110 is electrically connected between the first wiring 103 and wave filter 32,
3rd chokes component 114 is electrically connected between the second wiring 104 and wave filter 32.
Refering to Fig. 6, Fig. 5, a kind of of the present invention is coordinated to implement in aspect, the such as isolation of Fig. 5
Module 110 is arranged in a socket 61.
Refering to Fig. 7, coordinate Fig. 5, in another aspect of the present invention, the isolation module 110
It is arranged in a plug 62.
In the present embodiment, the second chokes component 113 and the 3rd chokes component 114 adopt pcrmeability
μrThe iron core and about 5 circle coiling (lines that about 1.5～2.0 centimeter of=20000 Henry/meter, diameter
2 millimeters of footpath) inductance value of number mH can be obtained, its size directly can be inserted in socket or plug
And it is commercially available and practical.
As the live wire and ground wire in general house wiring is two independent conductors and spacing is non-fixed
Value, line impedence (characteristic impedance) can change with wiring and affect transmission signal quality, its solution party
Case such as Fig. 8 and Fig. 9.
Refering to Fig. 8, coordinate Fig. 5, between basic controller 1 and match circuit 5 also electrically
Connect the second chokes component 113 that the isolation module 110 of a repeater 7 and similar Fig. 5 has
And the 3rd chokes component 114, and the second chokes component 113 is electrically connected with the first wiring 103,
3rd chokes component 114 is electrically connected with the second wiring 104.Repeater 7 has a repeat circuit
70th, two inputs, 701,702 and two outfan 703,704, one of which input 702
And be electrically connected with the second chokes component 113 between outfan 704, another group of input 701 and
Be electrically connected with the 3rd chokes component 114 between outfan 703, and the repeater 7 be a length away from
From the repeater 7 of the one-to-one type of tandem signal, shaping transmission signal is avoiding affecting to pass whereby
Defeated signal quality.
Fig. 9 is referred to, and unlike Fig. 8, basic controller 1 and two tap circuits 71,
A pair many types of repeaters 7 ' for being used for tapped off signal and two group second is electrically connected between 72
The 113,113 ' and the 3rd chokes component 114,114 ' of chokes component, and the second chokes component 113,
113 ' are electrically connected with the first wiring 103, and the 3rd chokes component 114,114 ' is electrically connected with second and connects
The main switch power supply of domestic can be separated and transmission signal, can also avoid affecting by line 104 whereby
Transmission signal quality.
Supplementary notes, if the permeability range that selects in each embodiment is more than or equal to 1000
The chokes component of Henry/meter, also belongs to the application category of the present invention.In addition, though each implement
The load 3 of example only shows one group, as long as however, being electrically connected at the first wiring 103 and second
Multigroup load 3 of wiring 104, is also applied for technical scheme and keeps electric lines of force to lead to
The signal quality of news carrier wave 203.
In sum, effect of the invention is：
1. interfering in order to avoid power line communication carrier wave 203 and ac signal 201,
The present invention coordinates the switching cycle of switch module 111 in the feed end of electric lines of force and operates in chokes
The different qualities of the B-H loop of component, can be effectively ensured holding power line communication carrier wave 203
Quality.
2. lead in order to avoid the acrossing the line filter capacitor Cx of electrical equipment body 31 absorbs electric lines of force
News carrier wave 203, the present invention coordinate another two groups of chokes components to ensure electricity in the outfan of electric lines of force
Line of force communication carrier wave 203 is not absorbed.
3., in order to avoid long range propagation causes distortion, the present invention is using with two-wire characteristic impedance
Match circuit 5, it is thus ensured that power line communication carrier wave 203 will not be because of long range propagation
Distortion.
4. the present invention can coordinate the repeater 7 of one-to-one type, the second chokes component 113 and the 3rd
Chokes component 114 to ensure the transmission signal quality of outdoor long range propagation, in addition, of the invention
A pair many types of repeaters 7 ', the second chokes component 113 and the 3rd chokes components can be coordinated again
114 to ensure the transmission signal quality of indoor tap circuit 71,72, the practical valency with application
Value, therefore the purpose of the present invention can be reached really.
As described above, only embodiments of the invention, when can not limit the present invention with this
The scope of enforcement, i.e., all according to claims of the present invention and description made simple etc.
Effect change and modification, all still belong to the scope of the present invention.
Claims (11)
1. a kind of keep power line communication carrier-quality method, in order to keep a live wire,
The signal quality of the power line communication carrier wave between one ground wire and a load, it is characterised in that：
The method includes the steps of：
The one of which of the live wire and ground wire of the electric lines of force is electrically connected at a switch module
And the load, and the live wire and ground wire of the electric lines of force is electrically connected at an at least chokes component
Another one and the load, the chokes component has the iron core of a corresponding B-H loop；
When the switch module is not turned on, the iron core of the chokes component is operated in the B-H loop
Zero crossings can transmit the power line communication carrier wave to avoid the core sataration and give this to bear
Carry；And
When the switch module is turned on, the iron core of the chokes component is operated in the B-H loop
Saturation region so that the core sataration and do not transmit the power line communication carrier wave and give the load.
2. according to claim 1 keep power line communication carrier-quality method, its
It is characterised by：The period that is not turned on of the switch module need not be in the more zero crossings of alternating current.
3. a kind of device for keeping power line communication carrier-quality, has one in order to keep one
The signal quality of the power line communication carrier wave between live wire, a ground wire and a load, which is special
Levy and be：The device includes：
One switch module, be electrically connected at the live wire and ground wire of the electric lines of force one of which and
The load；And
An at least chokes component, is electrically connected at the another one of the live wire and ground wire of the electric lines of force
And the load, the chokes component has the iron core of a corresponding B-H loop, in the switches set
When part is not turned on, the operation of the iron core of the chokes component the B-H loop zero crossings keeping away
Exempt from the core sataration and can transmit the power line communication carrier wave and give the load, and in the switch
During element turns, the iron core of the chokes component is operated in the saturation region of the B-H loop so that should
Core sataration and do not transmit the power line communication carrier wave and give the load.
4. according to claim 3 keep power line communication carrier-quality device, its
It is characterised by：The load includes that an electrical equipment body, an acrossing the line filter capacitor and are prevented
Electromagnetic wave propagation and/or the wave filter of reception；The holding transmission quality device also includes a coupling
Component and one is electrically connected at the isolation module between the wave filter and the coupling assembly, should be every
Isolate external disturbance when the switch module is not turned on from module to transmit glitch-free electric lines of force
Communication carrier wave gives the electrical equipment body, and the power line communication carrier wave is not filtered by the acrossing the line
Capacitive absorption.
5. according to claim 3 keep power line communication carrier-quality device, its
It is characterised by：Including one with the first wiring that the live wire is electrically connected with, electrical with the ground wire
Second wiring of connection and an isolation module, the quantity of the chokes component have multiple, at least
First of another one and the load including the live wire and ground wire for being electrically connected at the electric lines of force
Chokes component, and belong to one second chokes component and one the 3rd chokes group of the isolation module
Part, the second chokes component are electrically connected with first wiring, and the 3rd chokes component is electrically connected with
Second wiring.
6. according to claim 5 keep power line communication carrier-quality device, its
It is characterised by：Also include a socket, the second chokes component and the 3rd chokes component are arranged
In the socket, the second chokes component is electrically connected with first wiring and electromagnetic interference filter
Between ripple device, the 3rd chokes component is electrically connected between second wiring and the wave filter.
7. according to claim 5 keep power line communication carrier-quality device, its
It is characterised by：Also include a plug, the second chokes component and the 3rd chokes component are arranged
In the plug, the second chokes component is electrically connected between first wiring and the wave filter,
3rd chokes component is electrically connected between second wiring and the wave filter.
8. according to claim 5 keep power line communication carrier-quality device, its
It is characterised by：Also include a repeater, the repeater has a repeat circuit, at least two defeated
Enter end and at least two outfans, be electrically connected between one of which input and outfan this
Two chokes components, another group is electrically connected with the 3rd chokes component between input and outfan,
And the repeater is the repeater of the one-to-one type of a long range tandem signal, or a tap letter
Number a pair many types of repeaters.
9. holding electric lines of force according to claim 3 to 8 any of which claim leads to
The device of news carrier-quality, it is characterised in that：The pcrmeability of the chokes component is more than or equal to
1000 Henry/meter.
10. holding electric lines of force according to claim 5 to 8 any of which claim leads to
The device of news carrier-quality, it is characterised in that：Also include two match circuits, respectively the coupling electricity
Road is electrically connected between first wiring and second wiring and is respectively arranged at first wiring
And the two ends of the circuit of the second wiring formation, have two-wire special with a high-voltage capacitance and one
The resistance of property impedance.
11. devices for keeping power line communication carrier-quality according to claim 10,
It is characterized in that：The computing formula of the characteristic impedance of the two-wire of the resistance is：
D therein is first wiring and second wiring being electrically connected with the ground wire
The distance of two wire centers, diameters of the d for wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510561031.9A CN106506040B (en) | 2015-09-07 | 2015-09-07 | Keep the method and device of power line communication carrier-quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510561031.9A CN106506040B (en) | 2015-09-07 | 2015-09-07 | Keep the method and device of power line communication carrier-quality |
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| CN106506040A true CN106506040A (en) | 2017-03-15 |
| CN106506040B CN106506040B (en) | 2019-05-10 |
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| CN201510561031.9A Active CN106506040B (en) | 2015-09-07 | 2015-09-07 | Keep the method and device of power line communication carrier-quality |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106506040B (en) | 2019-05-10 |
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