CN108718208B - D wave underground communication circuit - Google Patents
D wave underground communication circuit Download PDFInfo
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- CN108718208B CN108718208B CN201810699657.XA CN201810699657A CN108718208B CN 108718208 B CN108718208 B CN 108718208B CN 201810699657 A CN201810699657 A CN 201810699657A CN 108718208 B CN108718208 B CN 108718208B
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- operational amplifier
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- 238000004891 communication Methods 0.000 title claims abstract description 37
- 239000003990 capacitor Substances 0.000 claims description 56
- 238000005070 sampling Methods 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/15535—Control of relay amplifier gain
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a D wave underground communication circuit, which is arranged between a D wave machine for receiving a D wave signal and a PC for displaying the D wave signal, wherein the D wave signal is amplified by a low-frequency automatic gain control circuit and a voltage amplifying circuit and then connected with a modem after being transmitted to the underground D wave machine, the input voltage of the low-frequency automatic gain control circuit is only between 100 and 2000mv, the input voltage is always 500mv, the adaptability is strong, the voltage is stable, the damage to interface equipment is avoided, and the D wave signal is transmitted to the PC after sequentially passing through a singlechip and an ARM processor.
Description
Technical Field
The invention belongs to the technical field of underground communication, and particularly relates to a D-wave underground communication circuit.
Background
Miners working underground are buried underground after sudden mining accidents, original pipelines and telephone lines are interrupted, and the existing communication methods such as radio wave communication (including various frequencies and wavelengths), optical fiber communication, laser communication and the like cannot be used underground after mining accidents. Thus, the victim can not be connected with the well, the personnel on the well can not know the dangerous situation of going on by using the original communication equipment, in order to solve the technical problem, the D wave underground communication technology is generated, and when the existing D wave is used, a plurality of technical problems exist, firstly, after the D wave signal is transmitted to the underground D wave machine from the ground, the D wave signal is also required to be transmitted to the PC from the D wave machine, and the existing serial port is easy to damage the interface equipment when the communication of the two is realized; secondly, lack necessary terminal underground, when the mine disaster takes place, the miner can't send distress signal in the first time.
Disclosure of Invention
The invention aims to provide a D-wave underground communication circuit which is used for connecting a D-wave machine and a PC machine to realize stable transmission of D-wave signals when mining accidents occur.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a D ripples underground communication circuit, this communication circuit sets up and is used for transmitting signal parameter between the D ripples machine that is used for receiving the D ripples signal and the PC that is used for showing the D ripples signal, the D ripples machine with modem, singlechip and ARM treater have been set gradually between the PC, the D ripples machine with be provided with low frequency automatic gain control circuit and voltage amplification circuit between the modem, the singlechip passes through TTL serial communication and links to each other with the ARM treater, the ARM treater passes through RS232 serial communication and links to each other with the PC.
Further, the low-frequency automatic gain control circuit comprises a buffer module, an automatic gain control module and an attenuation module which are sequentially connected, wherein the input end of the buffer module is connected with the D-wave machine, and the output end of the attenuation module is connected with the modem.
Further, the buffer module includes an operational amplifier U13, a resistor R46-R50, a capacitor C36, a capacitor C37 and a capacitor C48, where a pin 1 of the operational amplifier U13 is connected to the automatic gain control module, a resistor R49 and a capacitor C36 are sequentially connected in series between a pin 2 of the operational amplifier U13 and the D-wave machine, a resistor R48 is connected in series between the capacitor C36 and a ground terminal, a pin 3 of the operational amplifier U13 is connected to a +12v power supply through the resistor R46, a resistor R47 is connected in series between the pin 3 of the operational amplifier U13 and the ground terminal, a capacitor C48 is connected in parallel at two ends of the resistor R47, a pin 4 of the operational amplifier U13 is grounded, a capacitor C37 is connected in series between a pin 8 of the operational amplifier U13 and the +12v power supply, and a resistor R50 is connected in series between the pin 2 of the operational amplifier U13 and the pin 1 of the operational amplifier U13.
Further, the automatic gain control module comprises a capacitor C38, a resistor R114, an operational amplifier U14, a resistor R53, a resistor R54 and a capacitor C40, wherein the capacitor C38 is connected in series between the pin 3 of the operational amplifier U14 and the buffer module, the resistor R114 is connected in series between the pin 4 of the operational amplifier U14 and the buffer module, the pin 4 of the operational amplifier U14 is grounded, the pin 6 of the operational amplifier U14 is connected with a-5V power supply, the pin 8 of the operational amplifier U14 is connected with a +5v power supply, the resistor R54 is connected in series between the pin 2 of the operational amplifier U14 and the ground terminal, the resistor R53 is connected in series between the pin 2 of the operational amplifier U14 and the +5v power supply, the capacitor C40 is connected in series between the +5v power supply and the ground terminal, the pin 5 of the operational amplifier U14 is directly connected with the pin 7, and the pin 7 of the operational amplifier U14 is connected with the attenuation module.
Further, the attenuation module includes a capacitor C41, a resistor R58, a resistor R59, and a capacitor C42, where the resistor R59 is connected between the pin 6 and the pin 7 of the operational amplifier U13, the resistor R58 and the capacitor C41 are sequentially connected in series between the pin 6 of the operational amplifier U13 and the automatic gain control module, and the capacitor C42 is connected in series between the pin 7 of the operational amplifier U13 and the modem.
Further, a sampling circuit is connected in series between the pin 1 and the pin 7 of the operational amplifier U14, the sampling circuit includes a resistor R55, a triode Q1, a plurality of parallel resistors and a plurality of parallel capacitors, the resistor R55 is connected in series between the pin 1 and the +5v power supply of the operational amplifier U14, the pin 1 of the operational amplifier U14 is connected with the collector of the triode Q1, the base of the triode Q1 is grounded, the emitter of the triode Q1 is connected with the pin 7 of the operational amplifier U14 after being connected in series with the plurality of parallel resistors, and a plurality of parallel resistors are connected in series between the pin 1 and the ground terminal of the operational amplifier U14.
Further, the amplifying circuit includes: the digital wave generator comprises an operational amplifier U9, resistors R60-R65, a capacitor C21 and a capacitor C22, wherein the output end of the operational amplifier U9 is sequentially connected with the capacitor C22 and the resistor R60 in series and then is connected with the D wave generator, a resistor R61 is connected between the output end and the inverting input end of the operational amplifier U9 in series, a resistor R62 and a capacitor C21 are sequentially connected between the inverting input end and a modem of the operational amplifier U9 in series, a resistor R63 is connected between the resistor R62 and the grounding end in series, the non-inverting input end of the operational amplifier U9 is connected with a +12V power supply after passing through the resistor R64, and a resistor R65 is connected between the non-inverting input end and the grounding end of the operational amplifier U9.
Compared with the prior art, the invention has the beneficial effects that: the D wave underground communication circuit is arranged between the D wave machine for receiving the D wave signal and the PC for displaying the D wave signal, the D wave signal is transmitted to the underground D wave machine and then is amplified by the low-frequency automatic gain control circuit and the voltage amplifying circuit and then is connected with the modem, wherein the input voltage of the low-frequency automatic gain control circuit is only between 100 and 2000mv, the output voltage is always 500mv, the adaptability is strong, the voltage is stable, the damage to interface equipment is avoided, the D wave signal is transmitted to the PC after sequentially passing through the singlechip and the ARM processor, the whole structure of the D wave underground communication circuit is simple and stable, and the D wave underground communication circuit can replace a conventional communication means to communicate with the underground when a mine disaster occurs.
Drawings
FIG. 1 is a block diagram of a process for transmitting a D-wave signal in the subsurface according to the present invention;
FIG. 2 is a circuit diagram of a low frequency automatic gain control circuit according to the present invention;
FIG. 3 is a circuit diagram of an amplifying circuit in the present invention;
the marks in the figure: 4. the device comprises a buffer module 5, an automatic gain control module 6, an attenuation module 11, a D wave machine 12, a modem 13, a singlechip 14, an ARM processor 15, a PC 16, a voltage amplifying circuit 17 and a low-frequency automatic gain control circuit.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all, embodiments of the present invention, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
As shown in FIG. 1, the D-wave underground communication circuit is arranged between a D-wave machine 11 for receiving a D-wave signal and a PC 15 for displaying the D-wave signal and is used for transmitting signal parameters, a modem 12, a singlechip 13 and an ARM processor 14 are sequentially arranged between the D-wave machine 11 and the PC 15, a low-frequency automatic gain control circuit 17 and a voltage amplifying circuit 16 are arranged between the D-wave machine 11 and the modem 12, the singlechip 13 is connected with the ARM processor 14 through TTL serial communication, and the ARM processor 14 is connected with the PC 15 through RS232 serial communication.
As shown in fig. 2, the low-frequency automatic gain control circuit 17 includes a buffer module 4, an automatic gain control module 5 and an attenuation module 6 which are sequentially connected, wherein an input end of the buffer module 4 is connected with the D-wave machine 11, a bandwidth of a D-wave signal output by the D-wave machine is 80db, a voltage is between 100mv and 2000mv, a voltage constant after passing through the buffer module 4 and the automatic gain control module 5 is 1000mv, and a voltage after passing through the attenuation module is 500mv, no matter how large a voltage value of the input low-frequency automatic gain control circuit 17 is, an output voltage of the low-frequency automatic gain control circuit 17 is 500mv, and the voltage is stable and cannot damage interface equipment; the output of the attenuation module 6 is connected to a modem 12. The buffer module 4 comprises an operational amplifier U13, resistors R46-R50, a capacitor C36, a capacitor C37 and a capacitor C48, wherein a pin 1 of the operational amplifier U13 is connected with the automatic gain control module 5, a resistor R49 and the capacitor C36 are sequentially connected in series between a pin 2 of the operational amplifier U13 and the D-wave machine 11, a resistor R48 is connected in series between the capacitor C36 and a grounding end, a pin 3 of the operational amplifier U13 is connected with a +12V power supply through the resistor R46, a resistor R47 is connected in series between the pin 3 of the operational amplifier U13 and the grounding end, the two ends of the resistor R47 are connected with the capacitor C48 in parallel, a pin 4 of the operational amplifier U13 is grounded, a capacitor C37 is connected in series between a pin 8 of the operational amplifier U13 and the +12V power supply, and a resistor R50 is connected in series between the pin 2 of the operational amplifier U13 and the pin 1 of the operational amplifier U13. The automatic gain control module 5 comprises a capacitor C38, a resistor R114, an operational amplifier U14, a resistor R53, a resistor R54 and a capacitor C40, wherein the capacitor C38 is connected in series between a pin 3 of the operational amplifier U14 and the buffer module 4, the resistor R114 is connected in series between the pin 4 of the operational amplifier U14 and the buffer module 4, the pin 4 of the operational amplifier U14 is grounded, the pin 6 of the operational amplifier U14 is connected with a-5V power supply, the pin 8 of the operational amplifier U14 is connected with a +5V power supply, the resistor R54 is connected in series between the pin 2 of the operational amplifier U14 and a grounding end, the resistor R53 is connected in series between the +5V power supply and the grounding end, the capacitor C40 is connected in series between the pin 5 of the operational amplifier U14 and the pin 7, and the pin 7 of the operational amplifier U14 are directly connected, and the pin 7 of the operational amplifier U14 is connected with the attenuation module 6. The attenuation module 6 comprises a capacitor C41, a resistor R58, a resistor R59 and a capacitor C42, wherein the resistor R59 is connected between a pin 6 and a pin 7 of the operational amplifier U13, the resistor R58 and the capacitor C41 are sequentially connected in series between the pin 6 of the operational amplifier U13 and the automatic gain control module 5, and the capacitor C42 is connected in series between the pin 7 of the operational amplifier U13 and the modem 12. Here, the operational amplifier U13 in the attenuation module and the buffer module are the same AD8599 amplifier, and in fig. 2, the operational amplifier U13 in the buffer module is denoted by U13A, and the operational amplifier U13B in the attenuation module.
Further optimizing this scheme, there is sampling circuit in series between pin 1 and the pin 7 of operational amplifier U14, this sampling circuit include resistance R55, triode Q1, a plurality of parallel resistance and a plurality of parallel capacitance, there is resistance R55 in series between pin 1 and the +5V power of operational amplifier U14, operational amplifier U14's pin 1 links to each other with triode Q1's collecting electrode, and triode Q1 is NPN triode, and triode Q1's base ground, triode Q1's projecting pole and a plurality of parallel resistance are established ties the back with operational amplifier U14's pin 7 links to each other, a plurality of parallel resistance has been established ties between operational amplifier U14's pin 1 and the ground terminal, and operational amplifier U14's model is AD603.
As shown in fig. 3, the amplifying circuit includes: the model of the operational amplifier U9 is LM358, the output end of the operational amplifier U9 is connected with the D-wave machine 11 after being connected with the capacitor C22 and the resistor R60 in series, a resistor R61 is connected between the output end and the inverting input end of the operational amplifier U9 in series, a resistor R62 and a capacitor C21 are connected between the inverting input end and the modem 12 of the operational amplifier U9 in series, a resistor R63 is connected between the resistor R62 and the grounding end in series, the non-inverting input end of the operational amplifier U9 is connected with a +12V power supply after passing through the resistor R64, and a resistor R65 is connected between the non-inverting input end and the grounding end of the operational amplifier U9.
The D wave underground communication circuit is arranged between the D wave machine for receiving the D wave signal and the PC for displaying the D wave signal, the D wave signal is transmitted to the underground D wave machine and then is amplified by the low-frequency automatic gain control circuit and the voltage amplifying circuit and then is connected with the modem, wherein the input voltage of the low-frequency automatic gain control circuit is only between 100 and 2000mv, the output voltage is always 500mv, the adaptability is strong, the voltage is stable, the damage to interface equipment is avoided, the D wave signal is transmitted to the PC after sequentially passing through the singlechip and the ARM processor, the whole structure of the D wave underground communication circuit is simple and stable, and the D wave underground communication circuit can replace a conventional communication means to communicate with the underground when a mine disaster occurs.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A D wave underground communication circuit is characterized in that: the communication circuit is arranged between a D wave machine (11) for receiving a D wave signal and a PC (15) for displaying the D wave signal and is used for transmitting signal parameters, a modem (12), a singlechip (13) and an ARM processor (14) are sequentially arranged between the D wave machine (11) and the PC (15), a low-frequency automatic gain control circuit (17) and a voltage amplification circuit (16) are arranged between the D wave machine (11) and the modem (12), the singlechip (13) is connected with the ARM processor (14) through TTL serial port communication, and the ARM processor (14) is connected with the PC (15) through RS232 serial port communication;
the low-frequency automatic gain control circuit (17) comprises a buffer module (4), an automatic gain control module (5) and an attenuation module (6) which are sequentially connected, the buffer module (4) comprises an operational amplifier U13, resistors R46-R50, a capacitor C36, a capacitor C37 and a capacitor C48, a pin 1 of the operational amplifier U13 is connected with the automatic gain control module (5), a resistor R49 and a capacitor C36 are sequentially connected in series between a pin 2 of the operational amplifier U13 and a D-wave machine (11), a resistor R48 is connected in series between the capacitor C36 and a grounding end, a resistor R47 is connected in series between the pin 3 of the operational amplifier U13 and the grounding end through the resistor R46, the capacitor C48 is connected in parallel at two ends of the resistor R47, a pin 8 of the operational amplifier U13 is connected with a +12V power supply and a grounding end, a resistor C37 is connected in series between the pin 8 of the operational amplifier U13 and the grounding end, and the resistor R1 is connected in series between the pin 13 and the operational amplifier U1.
2. The D-wave underground communication circuit of claim 1, wherein: the input end of the buffer module (4) is connected with the D wave machine (11), the output end of the attenuation module (6) is connected with the modem (12), and the automatic gain control module (5) comprises a capacitor C38, a resistor R114, an operational amplifier U14, a resistor R53, a resistor R54 and a capacitor C40.
3. A D-wave underground communication circuit according to claim 2, wherein: the capacitor C38 is connected in series between the pin 3 of the operational amplifier U14 and the buffer module (4), the resistor R114 is connected in series between the pin 4 of the operational amplifier U14 and the buffer module (4), the pin 4 of the operational amplifier U14 is grounded, the pin 6 of the operational amplifier U14 is connected with a-5V power supply, the pin 8 of the operational amplifier U14 is connected with a +5V power supply, the resistor R54 is connected in series between the pin 2 of the operational amplifier U14 and the ground terminal, the resistor R53 is connected in series between the pin 2 of the operational amplifier U14 and the +5V power supply, the capacitor C40 is connected in series between the +5V power supply and the ground terminal, the pin 5 of the operational amplifier U14 is directly connected with the pin 7, and the pin 7 of the operational amplifier U14 is connected with the attenuation module (6).
4. A D-wave underground communication circuit according to claim 2, wherein: the attenuation module (6) comprises a capacitor C41, a resistor R58, a resistor R59 and a capacitor C42, wherein the resistor R59 is connected between the pin 6 and the pin 7 of the operational amplifier U13, the resistor R58 and the capacitor C41 are sequentially connected in series between the pin 6 of the operational amplifier U13 and the automatic gain control module (5), and the capacitor C42 is connected in series between the pin 7 of the operational amplifier U13 and the modem (12).
5. A D-wave underground communication circuit according to claim 3, wherein: the sampling circuit is connected in series between the pin 1 and the pin 7 of the operational amplifier U14 and comprises a resistor R55, a triode Q1, a plurality of parallel resistors and a plurality of parallel capacitors, the resistor R55 is connected in series between the pin 1 and a +5V power supply of the operational amplifier U14, the pin 1 of the operational amplifier U14 is connected with the collector of the triode Q1, the base of the triode Q1 is grounded, the emitter of the triode Q1 is connected with the pin 7 of the operational amplifier U14 after being connected in series with the plurality of parallel resistors, and a plurality of parallel resistors are connected in series between the pin 1 and the ground of the operational amplifier U14.
6. The D-wave underground communication circuit according to claim 1, wherein the amplifying circuit comprises: the digital wave generator comprises an operational amplifier U9, resistors R60-R65, a capacitor C21 and a capacitor C22, wherein the output end of the operational amplifier U9 is sequentially connected with the capacitor C22 and the resistor R60 in series and then is connected with the D wave generator (11), a resistor R61 is connected between the output end and the inverting input end of the operational amplifier U9 in series, a resistor R62 and the capacitor C21 are sequentially connected between the inverting input end of the operational amplifier U9 and the modem (12) in series, a resistor R63 is connected between the resistor R62 and the grounding end in series, the non-inverting input end of the operational amplifier U9 is connected with the +12V power supply through the resistor R64, and a resistor R65 is connected between the non-inverting input end and the grounding end of the operational amplifier U9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699657.XA CN108718208B (en) | 2018-06-29 | 2018-06-29 | D wave underground communication circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699657.XA CN108718208B (en) | 2018-06-29 | 2018-06-29 | D wave underground communication circuit |
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| Publication Number | Publication Date |
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| CN108718208A CN108718208A (en) | 2018-10-30 |
| CN108718208B true CN108718208B (en) | 2024-04-09 |
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| CN201810699657.XA Active CN108718208B (en) | 2018-06-29 | 2018-06-29 | D wave underground communication circuit |
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| CN205666067U (en) * | 2016-06-06 | 2016-10-26 | 东北大学秦皇岛分校 | Microphone array speech enhancement circuit |
| CN208572090U (en) * | 2018-06-29 | 2019-03-01 | 河南中多科技发展有限公司 | Communicating circuit under a kind of rolling land D |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9356706B2 (en) * | 2014-05-05 | 2016-05-31 | Stolar, Inc. | First responder and mine emergency communication |
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| CN2938237Y (en) * | 2006-08-16 | 2007-08-22 | 魏伟 | Money checking machine with forge money discerning function |
| WO2008049170A1 (en) * | 2006-10-26 | 2008-05-02 | Cmte Development Limited | Mine communication system |
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| CN108718208A (en) | 2018-10-30 |
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