CN108809353A - Integrated form network information transfer device - Google Patents
Integrated form network information transfer device Download PDFInfo
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- CN108809353A CN108809353A CN201810797581.4A CN201810797581A CN108809353A CN 108809353 A CN108809353 A CN 108809353A CN 201810797581 A CN201810797581 A CN 201810797581A CN 108809353 A CN108809353 A CN 108809353A
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- network information
- information transfer
- transfer device
- integrated form
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- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/11—Protection against environment
- H04Q1/116—Protection against environment lightning or EMI protection, e.g. shielding or grounding
Abstract
The present invention provides a kind of integrated form network information transfer device, including casing, circuit board and several pins, circuit board is equipped at least two sets of network information transfer circuits；Each network information transfer circuit includes that the first transformer, the second transformer and signal control chip, two input terminals of signal control chip are connected with two input terminals of the first transformer respectively, and signal is connected between controlling two signal ends of chip for by the anti-electromagnetic interference circuit of electromagnetic interference current drain.The present invention connects anti-electromagnetic interference circuit between two signal ends of each set network information transfer circuit, with by the electromagnetic interference current drain in circuit, to reduce electromagnetic interference, prevent influencing each other between unlike signal channel, ensure the good transmission of signal, and by the way that at least two sets of network information transfer circuits are arranged on circuit boards, to form multichannel structure, it realizes the integrated of network information transfer circuit, and is minimized.
Description
Technical field
The invention belongs to technical field of information transmission, are to be related to a kind of integrated form network information transfer dress more specifically
It sets.
Background technology
Network information transfer module is common electronic component in information transmission.Network information transfer module be computer with
The module used required for a link in two-way exchange data voltage signal chain between server.Current network information transmits
Signal is to be transmitted in signal path in the form of an electromagnetic wave in module, and signal path is the complexity with resistance, capacitance, inductance
Network is a typical distributed parameter system.When due to network information transfer, electromagnetic wave will produce electromagnetic interference, to prevent
Influencing each other between unlike signal channel, current network information transfer module are mostly single-path architectures.
Invention content
It is existing in the prior art to solve the purpose of the present invention is to provide a kind of integrated form network information transfer device
Network information transfer module is mostly to use single-path architecture, integrated poor problem.
To achieve the above object, the technical solution adopted by the present invention is：A kind of integrated form network information transfer device is provided,
Including casing, the circuit board being installed in the casing and several pins drawn by the casing, each pin with it is described
Circuit board is electrical connected, and the circuit board is equipped at least two sets of network information transfer circuits；Each network information transfer electricity
Road includes that the first transformer, the second transformer and signal control chip, two input terminals of the signal control chip respectively with
Two input terminals of first transformer are connected, in several pins：Two pins respectively with first transformation
Two output ends of device are connected, and two signal ends that two pins control chip with the signal respectively are connected, two institutes
State pin respectively with the signal control chip two control terminals be connected, four pins respectively with second transformer
Two input terminals and the connection of two output ends, be connected between two signal ends for by electromagnetic interference current drain
Anti- electromagnetic interference circuit.
Further, the anti-electromagnetic interference circuit includes first resistor, second resistance, 3rd resistor and capacitance, described
First resistor is connected with the second resistance, and the 3rd resistor is in parallel with the capacitance, one end of the first resistor and one
A signal end be connected, one end of the second resistance is connected with signal end described in another, the first resistor it is another
End is connected with the other end of the second resistance, and the other end of the first resistor is connected with one end of the 3rd resistor, institute
State the other end ground connection of 3rd resistor.
Further, the impedance of the second resistance is equal to the impedance of the first resistor.
Further, the impedance of the second resistance is 55 Ω.
Further, the impedance of the 3rd resistor is 5K Ω, and the capacitance is 270pF.
Further, the signal control chip includes impedance matching network module and transmission drive module, the impedance
Two input terminals that two output ends of matching network module distinguish first transformer are connected, the impedance matching network mould
Two input terminals of block distinguish it is described send drive module two output ends be connected, set in the transmission drive module there are two
The control terminal and two signal ends.
Further, first transformer include the first magnetic core, the first primary line for being wound on first magnetic core
The first secondary coil on first magnetic core is enclosed and is wound in, first primary coil is twisted wire made of multi cord, institute
It is twisted wire made of multi cord to state the first secondary coil.
Further, second transformer include the second magnetic core, the second primary line for being wound on second magnetic core
The second subprime coil on second magnetic core is enclosed and is wound in, second primary coil is twisted wire made of multi cord, institute
It is twisted wire made of multi cord to state second subprime coil.
Further, the equal turn numbers of the number of turns of second primary coil and the second subprime coil.
Further, the integrated form network information transfer device further includes the encapsulation circuit board and is filled in the machine
Solidification glue in shell.
The advantageous effect of integrated form network information transfer device provided by the invention is：Compared with prior art, this hair
It is bright to connect anti-electromagnetic interference circuit between two signal ends of each set network information transfer circuit, the electromagnetism in circuit is done
Current drain is disturbed, to reduce electromagnetic interference, influencing each other between unlike signal channel is prevented, ensures the good biography of signal
It is defeated, and by the way that at least two sets of network information transfer circuits are arranged on circuit boards, to form multichannel structure, realize the network information
Transmission circuit integrates, and is minimized.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the theory structure schematic diagram of integrated form network information transfer device provided in an embodiment of the present invention；
Fig. 2 is the main structure diagram of integrated form network information transfer device provided in an embodiment of the present invention；
Fig. 3 is the side structure schematic view of integrated form network information transfer device shown in Fig. 2.
Wherein, each attached drawing main mark in figure：
11- casings；12- pins；20- network information transfer circuits；21- signals control chip；211-；212-；22- first
Transformer；The second transformers of 23-；The anti-electromagnetic interference circuits of 24-.
Specific implementation mode
In order to make technical problems, technical solutions and advantages to be solved be more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
In addition, term " second ", " first " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " second " as a result, the feature of " first " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined." several " are meant that one or more, unless otherwise specifically defined.
In the description of the present invention, it is to be understood that, term "center", " length ", " width ", " thickness ", "upper",
The orientation or position of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot manage
Solution is limitation of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
The interaction relationship of connection or two elements inside two elements.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
Also referring to Fig. 1 and Fig. 2, now integrated form network information transfer device provided by the invention is illustrated.Institute
State integrated form network information transfer device, including casing 11, circuit board (not shown) and several pins 12, circuit board installation
In casing 11, by casing 11 come protection circuit plates.Circuit board includes PCB (printed wiring board).Electronics member is installed on PCB
Part, to form circuit.Several pins 12 are mounted on casing 11, and one end of each pin 12 is mounted on casing 11, and the other end draws
Go out outside casing 11；Each pin 12 is electrical connected with circuit board.Further, PCB can be double-sided wiring board, to reduce volume.
In further embodiments, PCB may be multilayer road plate, to reduce volume.
Circuit board is equipped with network information transfer circuit 20, is transmitted in a network into row information to realize.The network information
Transmission circuit 20 includes that the first transformer 22, the second transformer 23 and signal control chip 21.Signal controls two of chip 21
Input terminal is connected with two input terminals of the first transformer 22 respectively, and it can be network chip or network interface card core that signal, which controls chip 21,
Piece.Network chip (networking processor) is that an offer sends and receives mathematical logic (packet in a communication network
Include sound and video) microprocessor.The first transformer 22 and the second transformer 23, which is arranged, can enhance signal, improve transmission distance
From, so that die terminals is isolated from the outside, enhance anti-interference ability, to signal control chip 21 protect.
In several pins 12：Two pins 12 are connected with two output ends of the first transformer 22 respectively, two pins 12
Two signal ends for controlling chip 21 with signal respectively are connected, and two pins 12 control two controls of chip 21 with signal respectively
End is connected, and four pins 12 are connect with two input terminals of the second transformer 23 and two output ends respectively, with easy to use.
Network information transfer circuit 20 on circuit board is at least two sets, to collect network information transfer circuit 20
At realization is integrated, minimizes.In the present embodiment, circuit board is equipped with three sets of network information transfer circuits 20.At some other
The network information transfer circuit 20 of two sets, four sets, five sets etc. quantity can also be set in embodiment, on circuit board.
It is connected between two signal ends of signal control chip 21 for doing the anti-electromagnetism of electromagnetic interference current drain
Disturb circuit 24.Anti- electromagnetic interference circuit 24 is set, the electromagnetic interference electric current in circuit loop can be released, to reduce electricity
Magnetic disturbance improves anti-interference ability, while can prevent influencing each other between unlike signal channel.
Integrated form network information transfer device provided by the invention, compared with prior art, the present invention are believed in each set network
Anti- electromagnetic interference circuit 24 is connected between two signal ends of breath transmission circuit 20, the electromagnetic interference electric current in circuit is let out
It puts, to reduce electromagnetic interference, prevents influencing each other between unlike signal channel, ensure the good transmission of signal, and lead to
It crosses and at least two sets of network information transfer circuits 20 is set on circuit boards, to form multichannel structure, realize network information transfer electricity
Road 20 integrates, and is minimized.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, mounting technology and spot-welding technology installation may be used in the circuit board in signal control chip 21, to subtract
Small capacitances facilitate installation, reduce insertion loss.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, anti-electromagnetic interference circuit 24 include first resistor R1, second resistance R2,3rd resistor R3 and capacitance C,
First resistor R1 connects with second resistance R2, and 3rd resistor R3 is in parallel with capacitance C, one end of first resistor R1 and a signal end
It is connected, one end of second resistance R2 is connected with another signal end, and the other end of first resistor R1 is another with second resistance R2's
End is connected, and the other end of first resistor R1 is connected with one end of 3rd resistor R3, the other end ground connection of 3rd resistor R3.The structure
It, can be by most electromagnetic interference (EMI) current drain to greatly by the holder AC earth of 3rd resistor R3 and capacitance C parallel connections
On the ground, the dissemination for blocking EMI is played.Further, which can also be with 22 and second transformation of above-mentioned first transformer
Device 23 combines, to block EMI to propagate in the loop.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, the impedance of second resistance R2 is equal to the impedance of first resistor R1, to make network information transfer circuit
Potential balance between 20 two signal ends, and the electromagnetic interference in circuit is allow preferably to release.Further,
The impedance of two resistance R2 is 55 Ω, then the impedance of first resistor R1 is also 55 Ω, while to ensure signal energy good transmission, more
Good releases electromagnetic interference, reduces influence of the electromagnetic interference to transmission signal.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
The impedance of a kind of specific implementation mode, 3rd resistor R3 is 5K Ω, and capacitance C is 270pF, which can make electromagnetic interference electric current
It is preferably released to big ground, the effect for blocking electromagnetic interference to propagate.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, it includes impedance matching network module and transmission drive module, impedance matching net that signal, which controls chip 21,
Two input terminals that two output ends of road module distinguish the first transformer 22 are connected, two inputs of impedance matching network module
Two output ends that end sends drive module respectively are connected, and send control terminal and two signal ends there are two being set in drive module.
Setting impedance matching network module and transmission drive module subtract more stably to transmit signal in signal controls chip 21
Small loss.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, the first transformer 22 include the first magnetic core, the first primary coil being wound on the first magnetic core and twine
The first secondary coil being around on the first magnetic core, the first primary coil are twisted wire made of multi cord, and the first secondary coil is more
Twisted wire made of strand.Using twisted wire made of multi cord as the first primary coil and the first primary coil, it is inserted into reducing
Loss.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, the equal turn numbers of the number of turns of the first primary coil and the first secondary coil are improved anti-with reducing loss
Electromagnetic interference capability.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, the first transformer 22 is arranged with the intervals capacitance C, to reduce insertion loss.Similarly, the second transformer 23
It is arranged with the intervals capacitance C, to reduce insertion loss.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, the axial direction of the first magnetic core of the first transformer 22 are spatially parallel to wiring board, and then reduce the
Influence of one transformer 22 to device on wiring board reduces electromagnetic interference.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, the second transformer 23 include the second magnetic core, the second primary coil being wound on the second magnetic core and twine
The second subprime coil being around on the second magnetic core, the second primary coil are twisted wire made of multi cord, and second subprime coil is more
Twisted wire made of strand.Using twisted wire made of multi cord as the second primary coil and the second primary coil, it is inserted into reducing
Loss.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, the equal turn numbers of the number of turns and second subprime coil of the second primary coil are improved anti-with reducing loss
Electromagnetic interference capability.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, the axial direction of the second magnetic core of the second transformer 23 are spatially parallel to wiring board, and then reduce the
Influence of two transformers 23 to device on wiring board reduces electromagnetic interference.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, the integrated form network information transfer device further include dimensional packaged circuit board and are filled in consolidating in casing 11
Change glue and improves the shock resistance of the integrated form network information transfer device to fix each electronic device.
Further, the working frequency of the integrated form network information transfer device is between 1kHz~1062MHz, to increase
Operating frequency range.The integrated form network information transfer device is in high band by the coupling of " conducting wire "-inductance, capacitance C compositions
Chain realizes the transmission of energy, to realize that common-mode signal inhibits, reduces interference.
Further, it is Surface Mount structure which, which has good reliability, each exit,
That is two input terminals and two output ends of the second transformer 23, two output ends, two input terminals of the first transformer 22, letter
Number control two control terminals of chip 21, two signal ends, two input terminals are Surface Mount structure, and each exit and PCB
Use Sn10Pb solders when plate welds, the solid fusing point of solder at 268 degree, liquid fusing point at 301 degree, with the first transformer 22 of guarantee,
The reliability of solder joint when second transformer 23 and each other electron component cross Reflow Soldering (245 degree of maximum temperature)；Again through high temperature mould
Pressure mode makes each device be combined into one；Reliability when ensureing that complete machine uses.
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
A kind of specific implementation mode, pin 12 are 28, and the both sides of casing 11 are respectively equipped with 14 pins 12；Along 11 length side of casing
To：The pin 12 of 11 side of casing is followed successively by 1-14 pins 12, and the pin 12 of 11 other side of casing is followed successively by 28-15, with convenient
It uses.
Further, the exit of each label is connected with corresponding pin 12 in Fig. 1, such as：Marked as 1 exit with it is right
Pin 12 that should be marked as 1 is connected, be connected with the corresponding pin 12 marked as 2 marked as 2 exit etc..
Further, also referring to Fig. 1 to Fig. 3, as integrated form network information transfer device provided by the invention
The length L of a kind of specific implementation mode, casing 11 is 20.2mm；The width H of casing 11 is 10mm；11 both sides corresponding pin of casing
The length M of 12 free ends is 14mm；Each pin 12 bottom surface protrusion casing 11 bottom surface, 12 bottom surface of pin to 11 top surface of casing it
Between distance N be 4.95mm.It follows that the integrated form network information transfer device of the application can be smaller by volume making,
It realizes and minimizes, is integrated.
Each electrical parameter such as following table of the integrated form network information transfer device of the present embodiment：
1 integrated form network information transfer device electrical parameter of table
As seen from the above table, the integrated form network information transfer device loss value of the present embodiment is less than 2dB, has electromagnetism anti-dry
It disturbs, the characteristics such as low-loss transmission, and there is good reliability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. integrated form network information transfer device, including casing, the circuit board that is installed in the casing and drawn by the casing
Several pins gone out, each pin are electrical connected with the circuit board, it is characterised in that：The circuit board is equipped at least two
Cover network information transfer circuit；Each network information transfer circuit includes the first transformer, the second transformer and signal control
Two input terminals of chip, the signal control chip are connected with two input terminals of first transformer respectively, Ruo Gansuo
It states in pin：Two pins are connected with two output ends of first transformer respectively, two pins respectively with
Two signal ends of the signal control chip are connected, and two pins control two controls of chip with the signal respectively
End is connected, and four pins are connect with two input terminals of second transformer and two output ends respectively, described in two
It is connected between signal end for by the anti-electromagnetic interference circuit of electromagnetic interference current drain.
2. integrated form network information transfer device as described in claim 1, it is characterised in that：The anti-electromagnetic interference circuit packet
First resistor, second resistance, 3rd resistor and capacitance are included, the first resistor is connected with the second resistance, the third electricity
Resistance it is in parallel with the capacitance, one end of the first resistor is connected with a signal end, one end of the second resistance and
Another described signal end is connected, and the other end of the first resistor is connected with the other end of the second resistance, and described first
The other end of resistance is connected with one end of the 3rd resistor, the other end ground connection of the 3rd resistor.
3. integrated form network information transfer device as claimed in claim 2, it is characterised in that：The impedance etc. of the second resistance
In the impedance of the first resistor.
4. integrated form network information transfer device as claimed in claim 3, it is characterised in that：The impedance of the second resistance is
55Ω。
5. integrated form network information transfer device as claimed in claim 2, it is characterised in that：The impedance of the 3rd resistor is
5K Ω, the capacitance are 270pF.
6. integrated form network information transfer device as described in any one in claim 1-5, it is characterised in that：The signal control
Chip includes impedance matching network module and sends drive module, and two output ends of the impedance matching network module distinguish institute
Two input terminals for stating the first transformer are connected, and two input terminals of the impedance matching network module distinguish the transmission driving
Two output ends of module are connected, set in the transmissions drive module there are two the control terminal and two signal ends.
7. integrated form network information transfer device as described in any one in claim 1-5, it is characterised in that：First transformation
Device includes the first magnetic core, the first primary coil being wound on first magnetic core and be wound on first magnetic core first
Secondary coil, first primary coil are twisted wire made of multi cord, and first secondary coil is to be twisted made of multi cord
Line.
8. integrated form network information transfer device as described in any one in claim 1-5, it is characterised in that：Second transformation
Device includes the second magnetic core, the second primary coil being wound on second magnetic core and be wound on second magnetic core second
Secondary coil, second primary coil are twisted wire made of multi cord, and the second subprime coil is to be twisted made of multi cord
Line.
9. integrated form network information transfer device as claimed in claim 8, it is characterised in that：The circle of second primary coil
The equal turn numbers of number and the second subprime coil.
10. integrated form network information transfer device as described in any one in claim 1-5, it is characterised in that：The integrated form
Network information transfer device further includes the solidification glue for encapsulating the circuit board and being filled in the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810797581.4A CN108809353B (en) | 2018-07-19 | 2018-07-19 | Integrated network information transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810797581.4A CN108809353B (en) | 2018-07-19 | 2018-07-19 | Integrated network information transmission device |
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| CN108809353A true CN108809353A (en) | 2018-11-13 |
| CN108809353B CN108809353B (en) | 2024-04-05 |
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| CN201810797581.4A Active CN108809353B (en) | 2018-07-19 | 2018-07-19 | Integrated network information transmission device |
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