CN106160835A - Mobile communication network relay - Google Patents
Mobile communication network relay Download PDFInfo
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- CN106160835A CN106160835A CN201610697528.8A CN201610697528A CN106160835A CN 106160835 A CN106160835 A CN 106160835A CN 201610697528 A CN201610697528 A CN 201610697528A CN 106160835 A CN106160835 A CN 106160835A
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- 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
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Abstract
The invention provides a kind of mobile communication network relay, including near-end unit and far-end unit；Near-end unit includes: the first master controller, the first local maintenance interface, Ethernet transport module, the first high-speed digital transmission radio station and the first power module, first local maintenance interface, Ethernet transport module and the first high-speed digital transmission radio station are connected to the first master controller, near-end unit is connected with concentrator by Ethernet transport module, near-end unit is connected with external user terminal by the first local maintenance interface, and the first power module is that the first master controller, the first local maintenance interface, Ethernet transport module and the first high-speed digital transmission radio station power.Beneficial effects of the present invention: extended the signal transmission distance of Ethernet transmitting device and concentrator by enhancing signal.
Description
Technical field
The present invention relates to communicator, be specifically related to a kind of mobile communication network relay.
Background technology
Signal relay device, refers specifically to for passing through wired in mobile communications network signal blind zone or jitter region
Channel and other radio channel resource relay transmission mobile communications network signals, Shi Gai district device within the domain can normally use movement
The relay that communication network communicates, belongs to electric power O&M Site Detection field.Along with intelligent power grid technology at home
Fast development and application, power user power consumption information acquisition system reaches its maturity, but its terminal unit is because being arranged on various complexity
Environment in, there is 2G, 3G or 4G signal and not covering or the situation of jitter in part region, causes between terminal and main website not
Can set up and connect or connect instability, thus occur cannot the normal problem such as copy reading terminal data.Build for remote districts, city
The electric power acquisition terminal that the mobile communications network signals such as the basement built fail in covering or the more weak environment of signal cannot be normal
Use the problem that mobile communications network communicates, it is proposed that provide terminal uplink data in the exploitation of 230MHz electric power exclusive frequency range
The device of transfer service, device one end is by wire message way and concentrator interaction data, and the upstream data of concentrator is by this device
Near-end unit forwarded by 230MHz wireless channel, the data that the far-end unit of device will be received by 230MHz wireless channel
It is forwarded to mobile communications network, the data of relaying are delivered to main website, it is achieved concentrator is in mobile communications network signal blind zone also
Can be with the function of main website proper communication.
A kind of Authorization Notice No. disclosed in Chinese patent is the most flexible letter covered without public network signal of CN 204884143U
Device, this device has a near-end and a far-end, and near-end is installed nearby with special transformer terminals, and near-end is mainly by the first main control list
Unit, the first high-speed digital transmission radio station and RJ45 Ethernet data access unit composition, a described RJ45 Ethernet data connects
Enter and connected by the first main control unit, proximally by a RJ45 Ethernet data between unit and the first high-speed digital transmission radio station
Access unit and special transformer terminals interaction data, and transformer terminals upstream data is wireless by the 230MHz in the first high-speed digital transmission radio station
Channel forwards.Although this device achieves the concentrator proper communication function in mobile communication network signal blind zone, but
The shortcoming that this device yet suffers from is: 1) for a general RJ45 Ethernet data access unit and for, it is only used for
Relatively short distance signal transmits, if signal is farther out, then the quality of the signal of its transmission is the most poor, therefore cannot be used for distance and pass
Defeated signal；2) in use, its die terminals is not the most isolated from the outside the chip of a RJ45 Ethernet data access unit, because of
This is during it transmits or receives signal, and the signal of its transmission can be interfered, and therefore causes core because of reasons such as thunderbolts
Sheet damages.
Summary of the invention
The invention provides a kind of mobile communication network relay, extend Ethernet transmitting device by enhancing signal
Signal transmission distance with concentrator.
For achieving the above object, present invention employs following technical scheme:
A kind of mobile communication network relay, including near-end unit and far-end unit；
Near-end unit includes: the first master controller, the first local maintenance interface, Ethernet transport module, the first high speed number
Conduct electricity platform and the first power module, and the first local maintenance interface, Ethernet transport module and the first high-speed digital transmission radio station are equal
Being connected to the first master controller, near-end unit is connected with concentrator by Ethernet transport module, and near-end unit passes through first
Ground maintenance interface is connected with external user terminal, and the first power module is the first master controller, the first local maintenance interface, ether
Net transport module and the first high-speed digital transmission radio station power；
Far-end unit includes: the second master controller, the second local maintenance interface, GPRS module, the second high-speed digital transmission radio station
And second source module, it is main that the second local maintenance interface, GPRS module and the second high-speed digital transmission radio station are connected to first
Controller, far-end unit is arranged on the place that GPRS signal covers, and far-end unit is by with GPRS module and mobile communication network
Connecting, far-end unit is connected with external user terminal by the second local maintenance interface, the first high-speed digital transmission electricity of near-end unit
Forming 230MHz radio-frequency channel between platform and the second high-speed digital transmission radio station of far-end unit, second source module is the second main control
Device, the second local maintenance interface, GPRS module and the second high-speed digital transmission radio station power；
Wherein, Ethernet transport module includes: Ethernet chip, Ethernet peripheral circuit, networking transformator and RJ-45
Interface Terminal, Ethernet peripheral circuit is connected with Ethernet chip, and Ethernet chip passes through RJ-45 Interface Terminal and concentrator phase
Even, networking transformator is connected on the circuit that Ethernet chip is connected with RJ-45 Interface Terminal, with to concentrator to ether web-roll core
The signal that sheet sends carries out analog digital conversion and amplification.
Preferably, the first end of RJ-45 Interface Terminal and the first couple simulation of the second end connection networking transformator export
Input, the 3rd end of RJ-45 Interface Terminal and the second couple simulation input/output terminal of six end connecting networking transformator, networking
First numeral I/O of transformator is connected with the pair of output of Ethernet chip, the second numeral of networking transformator
Input/output terminal is connected with second pair of input of Ethernet chip, in second pair of input and the networking transformation of Ethernet chip
It is provided with the first mu balanced circuit, the line that the pair of output of Ethernet chip is connected with networking transformator on the circuit that device connects
It is provided with the second mu balanced circuit on road, and the first mu balanced circuit is connected with the power end of network transformer, at network transformer
Connect on earth terminal and have a voltage stabilizing grounded circuit, and voltage stabilizing grounded circuit and the 4th end of RJ-45 Interface Terminal, the 5th end, the 7th
End and the 8th end connect.
Preferably, the first mu balanced circuit includes the first resistance, the second resistance, the first electric capacity and the second electric capacity, first
The equal ground connection of negative pole of electric capacity and the second electric capacity, the positive pole of the second electric capacity is for connecting the power end of network transformer, the first resistance
One end is connected with the positive pole of the first electric capacity, and the first resistance other end is connected with the positive pole of second pair of input of Ethernet chip,
Second resistance one end is connected with the positive pole of the first electric capacity, and input is born by the second resistance other end with the second of Ethernet chip
The most connected.
Preferably, the second mu balanced circuit includes the 3rd resistance, the 4th resistance and the 3rd electric capacity, the negative pole of the 3rd electric capacity
Ground connection, the 3rd resistance one end and the 4th resistance one end all positive poles with the 3rd electric capacity are connected, the 3rd resistance other end, the 4th resistance
The other end is connected with the positive pole in pair of output, negative pole respectively.
Preferably, voltage stabilizing grounded circuit includes the 5th resistance, the 6th resistance, the 7th resistance, the 4th electric capacity, the 5th electric capacity
And the 6th electric capacity, the 5th electric capacity and the equal ground connection of negative pole of the 6th electric capacity, the positive pole of the 5th electric capacity and the 6th electric capacity all with
The negative pole of the 4th electric capacity connects, and the positive pole of the 4th electric capacity is connected with the earth terminal of network transformer by the 5th resistance, the 4th electricity
The positive pole held is connected with the 4th end and the 5th end of RJ-45 Interface Terminal by the 6th resistance, and the positive pole of the 4th electric capacity passes through the
Seven resistance are connected with the 7th end and the 8th end of RJ-45 Interface Terminal.
Preferably, near-end unit also includes: the first infrared connection module being connected with the first controller；Far-end unit is also
Including: the second infrared connection module being connected with second controller；First local maintenance interface and the second local maintenance interface
All include: differential data transceiver, the first photoelectrical coupler, the second photoelectrical coupler, the 3rd photoelectrical coupler, user interface end
Son, the first sub-quick resistance, the second sub-quick resistance, the first diode, the second diode, the 8th resistance and the 9th resistance, difference
The input of the receptor outfan of data collector and the first photoelectrical coupler connects, the outfan of the first photoelectrical coupler with
The input of the first controller or second controller is connected, and the receptor output Enable Pin of differential data transceiver and driver make
Can all be connected to and the outfan of the second photoelectrical coupler by end, the input of the second photoelectrical coupler and the first controller or the second control
The outfan of device processed is connected, and the driver input end of differential data transceiver and the outfan of the 3rd photoelectrical coupler connect, the
The input of three photoelectrical couplers and the outfan of the first controller or second controller are connected, the power supply of differential data transceiver
End connects the first power module or the 5v power end of second source module, and the first end of user-interface terminal passes through the first sub-quick electricity
Resistance is connected to the anode of the first diode, and the anode of the first diode is connected with the B end of differential data transceiver, the first power supply mould
The 5v power end of block or second source module is connected to the anode of the first diode, the anode of the first diode by the 8th resistance
Being connected with the A end of differential data transceiver, the B end of differential data transceiver is connected and connects differential data transmitting-receiving by the 9th resistance
The earth terminal of device is connected, and the earth terminal of differential data transceiver and the negative electrode of the second diode are connected, the of user-interface terminal
Two ends are connected to the anode of the second diode by the second sub-quick resistance, and the anode of the second diode connects the moon of the first diode
Pole.
Preferably, near-end unit also includes: the first display module being connected with the first controller；Far-end unit also wraps
Include: the second display module being connected with second controller.
Preferably, the first power module and second source module all include: analog-digital converter, transformator, blood pressure lowering are steady
Depressor, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the tenth electric capacity, the first electrochemical capacitor and the second electrochemical capacitor, modulus turns
The live wire termination civil power high-voltage line of parallel operation, the zero line termination civil power low-voltage line of analog-digital converter, the ground connection termination of analog-digital converter
Ground, the outfan of analog-digital converter be the first power module or second source module 12v power end and with the 12v end of transformator
It is connected, and the 12v end of transformator is connected to the positive pole of the 7th electric capacity, two earth terminals of transformator, the negative pole of the 7th electric capacity and the
The equal ground connection of negative pole of eight electric capacity, the 5v end of transformator is the 5v power end of the first power module or second source module, transformation
The 5v end of device is connected to the input of voltage-releasing voltage stabilizer, the positive pole of the tenth electric capacity and the positive pole of the second electrochemical capacitor and is connected to
The input of voltage-releasing voltage stabilizer, the earth terminal of voltage-releasing voltage stabilizer, the negative pole of the 9th electric capacity, negative pole the tenth electricity of the first electrochemical capacitor
Hold negative pole and the equal ground connection of negative pole of the second electrochemical capacitor, two outfans of voltage-releasing voltage stabilizer, the positive pole of the 9th electric capacity and
The positive pole of the first electrochemical capacitor is connected to a node and 3.3v that this node is the first power module or second source module electricity
Source.
Compared to prior art, there is advantages that
By arranging Ethernet chip, it is achieved that the ethernet communication mode that near-end unit is middle with concentrator；By setting
Put Ethernet peripheral circuit, it is achieved that the driving to Ethernet chip；By arranging networking transformator, both achieved signal in fact
Analog-to-digital conversion, by facilitate after analog-to-digital conversion Ethernet chip receive data and send data, achieve again signal
Amplifying, signal extends the signal transmission distance of Ethernet transmitting device and concentrator after amplifying；By arranging RJ-45 interface end
Son facilitates the connection with concentrator.
Accompanying drawing explanation
Fig. 1 is the network chart of mobile communication network relay；
Fig. 2 is the circuit block diagram of near-end unit in Fig. 1；
Fig. 3 is the circuit block diagram of far-end unit in Fig. 1；
Fig. 4 is the circuit diagram of Ethernet transport module；
Fig. 5 is the first master controller or the circuit diagram of the second master controller；
Fig. 6 is the first local maintenance interface or circuit diagram of the second local maintenance interface；
Fig. 7 is the first infrared connection module or the circuit diagram of the second infrared connection module；
Fig. 8 is the first power module or the circuit diagram of second source module.
Detailed description of the invention
As it is shown in figure 1, the present invention proposes a kind of mobile communication network relay, including near-end unit 1 and far-end
Unit 2.
As shown in Figure 1 and Figure 2, near-end unit 1 includes: the first master controller 11, first local maintenance interface 12, ether
Net transport module the 13, first high-speed digital transmission radio station 14 and the first power module 15, the first local maintenance interface 12, Ethernet pass
Defeated module 13 and the first high-speed digital transmission radio station 14 are connected to the first master controller 11, and near-end unit 1 is transmitted by Ethernet
Module 13 is connected with concentrator 3, and near-end unit 1 is connected with external user terminal by the first local maintenance interface 12, the first electricity
Source module 15 is the first local maintenance interface 12 of master controller 11, first, Ethernet transport module 13 and the first high-speed digital transmission
Radio station 14 powers.
As shown in Figure 1 and Figure 3, far-end unit 2 includes: second master controller the 21, second local maintenance interface 22, GPRS
Module the 23, second high-speed digital transmission radio station 24 and second source module 25, the second local maintenance interface 22, GPRS module 23 and
Second high-speed digital transmission radio station 24 is connected to the first master controller 11, and far-end unit 2 is arranged on the place that GPRS signal covers, far
End unit 2 is by being connected with mobile communication network with GPRS module 23, and far-end unit 2 passes through the second local maintenance interface 22 with outer
Portion user terminal connects, the first high-speed digital transmission radio station 14 of near-end unit 1 and the second high-speed digital transmission radio station 24 of far-end unit 2 it
Between formed 230MHz radio-frequency channel, second source module 25 is second master controller the 21, second local maintenance interface 22, GPRS mould
Block 23 and the second high-speed digital transmission radio station 24 power.
As shown in Figure 4, wherein, Ethernet transport module 13 includes: Ethernet chip U10, Ethernet peripheral circuit, networking
Transformator U11 and RJ-45 Interface Terminal J2, Ethernet peripheral circuit is connected with Ethernet chip U10, Ethernet chip U10
Being connected with concentrator 3 by RJ-45 Interface Terminal J2, networking transformator is connected to Ethernet chip U10 and RJ-45 Interface Terminal
On the circuit that J2 connects, carry out analog digital conversion and amplification with the signal that concentrator 3 is sent to Ethernet chip U10.
As shown in FIG. 4 and 5, the first master controller 11 and the second master controller 21 all use STM32 model to control core
Sheet, Ethernet chip U10 use DM9161 model chip, the MDIO foot of Ethernet chip U10, RXD [3] foot, RXD [2] foot,
RXD [1] foot, RXD [0] foot, MDINTR# foot, RXCLK foot, CRS foot, COL foot, MDC foot, TXD0 foot, TXD1 foot, TXD2 foot,
TXD3 foot, SPEEDLED#OP1 foot, LINK/ACTLED#OP2 foot, DX/COLLED#OP0 foot, TX+ foot, TX-foot, RX+ foot, RX-
Foot, RXER foot respectively with the PA2 foot of the first master controller 11, PB1 foot, PB0 foot, PC5 foot, PC4 foot, PA7 foot, PA1 foot, PA0
Foot, PA3 foot, PC1 foot, PB12 foot, PB13 foot, PC2 foot, PB8 foot, PE12 foot, PE11 foot, PD9 foot, PE9 foot, PE10 foot, PE7
Foot, PE8 foot, PD11 foot connect, thus realize Ethernet chip U10 and the communication of the first master controller 11.RJ-45 Interface Terminal
First end (that is: No. 1 foot) of J2 and the second end (that is: No. 2 feet) connect the first couple simulation I/O of networking transformator
(that is: TX+/RX+ foot and TX-/RX-foot), the 3rd end (that is: No. 3 feet) of RJ-45 Interface Terminal J2 and the 6th end (that is: No. 6 feet)
Connect the second couple simulation input/output terminal (that is: RX+/TX+ foot and RX-/TX-foot) of networking transformator, networking transformator U11's
The pair of output of the first numeral I/O (that is: TD+/RD+ foot and TD-/RD-foot) and Ethernet chip U10 is (i.e.:
TX+ foot and TX-foot) it is connected, the second digital IO end (that is: RD+/TD+ foot and RD-/TD-foot) of networking transformator U11
It is connected with second pair of input (that is: RX+ foot and RX-foot) of Ethernet chip U10, defeated the second couple of Ethernet chip U10
Enter and be provided with the first mu balanced circuit, Ethernet chip on the circuit that end (that is: RX+ foot and RX-foot) is connected with networking transformator U11
The second voltage stabilizing electricity it is provided with networking transformator U11 on the circuit that the pair of output (that is: TX+ foot and TX-foot) of U10 is connected
Road, and the first mu balanced circuit is connected with the power end VCC of network transformer, connecting on the earth terminal GND of network transformer has
Voltage stabilizing grounded circuit, and voltage stabilizing grounded circuit and the 4th end (that is: No. 4 feet) of RJ-45 Interface Terminal J2, the 5th end (that is: No. 5
Foot), the 7th end (that is: No. 7 feet) and the 8th end (that is: No. 8 feet) connect.By arranging the first mu balanced circuit, the second voltage stabilizing electricity
Road, it is achieved that signal transmission stable between networking transformator U11 and Ethernet chip U10, it is ensured that stablizing of signal transmitting and receiving
Carrying out, the second mu balanced circuit also has the effect of power end VCC input voltage of stabilizing network transformator simultaneously, network transformer
Power end VCC connects the 5V power end of the first power module 15.
As shown in Figure 4, the first mu balanced circuit includes the first resistance R1, the second resistance R2, the first electric capacity C1 and the second electricity
Holding C2, the equal ground connection of negative pole of the first electric capacity C1 and the second electric capacity C2, the positive pole of the second electric capacity C2 is for connecting network transformer
Power end, first resistance R1 one end is connected with the positive pole of the first electric capacity C1, the first resistance R1 other end and Ethernet chip U10
The positive pole of second pair of input is connected, and second resistance R2 one end is connected with the positive pole of the first electric capacity C1, the second resistance R2 other end
It is connected with the negative pole of second pair of input of Ethernet chip U10.
As shown in Figure 4, the second mu balanced circuit includes the 3rd resistance R3, the 4th resistance R4 and the 3rd electric capacity C3, the 3rd electricity
Holding the minus earth of C3, the 3rd resistance R3 one end and the 4th resistance R4 one end all positive poles with the 3rd electric capacity C3 are connected, and the 3rd is electric
The resistance R3 other end, the 4th resistance R4 other end are connected with the positive pole in pair of output, negative pole respectively.
As shown in Figure 4, voltage stabilizing grounded circuit includes the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 4th electric capacity
C4, the 5th electric capacity C5 and the 6th electric capacity C6, the equal ground connection of negative pole of the 5th electric capacity C5 and the 6th electric capacity C6, the 5th electric capacity C5 with
And the 6th positive pole all negative poles with the 4th electric capacity C4 of electric capacity C6 be connected, the positive pole of the 4th electric capacity C4 passes through the 5th resistance R5 and net
The earth terminal of network transformator is connected, and the positive pole of the 4th electric capacity C4 is by the 4th end of the 6th resistance R6 and RJ-45 Interface Terminal J2
And the 5th end be connected, the positive pole of the 4th electric capacity C4 the 7th end and the 8th by the 7th resistance R7 and RJ-45 Interface Terminal J2
End is connected.At the positive pole of the 5th electric capacity C5 connect Ethernet transport module 13 shell ground end and with the first master controller 11
PD8 end is connected, to avoid the shell touching Ethernet transport module 13 to get an electric shock, and the company with this end of the first master controller 11
Connect, for detecting whether the most grounded, to detect whether attachment security.
As shown in Fig. 5, Fig. 6 and Fig. 7, near-end unit 1 also includes: the first infrared connection mould being connected with the first controller
Block；Far-end unit 2 also includes: the second infrared connection module being connected with second controller.First infrared connection module and
Two infrared connection modules all use RIDA model chip, and the Vout foot of the first infrared connection module or the second infrared connection module is even
Connect the first master controller 11 or PD2 foot of the second master controller 21, to realize connecting.
First local maintenance interface 12 and the second local maintenance interface 22 all include: differential data transceiver U2, first
Photoelectrical coupler E1, the second photoelectrical coupler E2, the 3rd photoelectrical coupler E3, user-interface terminal J1, the first sub-quick resistance R '
1, second sub-quick resistance R ' the 2, first diode VD1, the second diode VD2, the 8th resistance R8 and the 9th resistance R9.Wherein,
Differential data transceiver U2 uses 75LBC184 model chip.The receptor outfan RO of differential data transceiver U2 and the first light
The input of electric coupler E1 connects, the outfan 485RX of the first photoelectrical coupler E1 and the first controller or second controller
Input PB11 be connected, the receptor of differential data transceiver U2 output Enable Pin RE and driver Enable Pin DE be all connected to
The outfan of the second photoelectrical coupler E2, the input EN of the second photoelectrical coupler E2 and the first controller or second controller
Outfan (PE15 foot and PB7 foot) is connected, the driver input end DI of differential data transceiver U2 and the 3rd photoelectrical coupler
The outfan of E3 connects, the input 485TX of the 3rd photoelectrical coupler E3 and the first controller or the outfan of second controller
PB10 is connected, and the power end VCC of differential data transceiver U2 connects the 5v electricity of the first power module 15 or second source module 25
Source, the first end of user-interface terminal J1 is connected to the anode of the first diode VD1 by the first sub-quick resistance R ' 1, and first
The anode of diode VD1 is connected with the B end of differential data transceiver U2, the first power module 15 or the 5v of second source module 25
Power end is connected to the anode of the first diode VD1 by the 8th resistance R8, and the anode of the first diode VD1 is received with differential data
The A end sending out device U2 is connected, and the B end of differential data transceiver U2 is connected and connects differential data transceiver U2's by the 9th resistance R9
Earth terminal GND is connected, and the negative electrode of the earth terminal GND and the second diode VD2 of differential data transceiver U2 is connected, user interface end
Second end of sub-J1 is connected to the anode of the second diode VD2, the anode of the second diode VD2 by the second sub-quick resistance R ' 2
Connect the negative electrode of the first diode VD1.During work, the first master controller 11 or the second master controller 21 pass through two outfans,
Inputting low and high level to the input EN of the second photoelectrical coupler E2, the first sub-quick resistance R ' 1 and the second sub-quick resistance R ' 2 is respectively
Side a and b carries out overvoltage protection, and the first diode VD1 ensures the pressure reduction having 0.7v between side a and b, thus ensures Vid
In=VA-VB, the value of Vid is just always, and the first infrared connection module and the second infrared connection module are respectively the first master control simultaneously
Device 11 processed and the second master controller 21 provide infrared communication agreement, thus realize differential data transceiver U2 and the first main control
The infrared ray of device 11 or the second master controller 21 connects.
As shown in FIG. 2 and 3, near-end unit 1 also includes: the first display module 16 being connected with the first controller；Far
End unit 2 also includes: the second display module 26 being connected with second controller.
As shown in Figure 8, in order to utilize stable 12v, 5v and 3v power supply needed in civil power sustainable supply circuit, first
Power module 15 and second source module 25 all include: analog-digital converter U7, transformator U8, voltage-releasing voltage stabilizer U9, the 7th electricity
Hold C7, the 8th electric capacity C8, the 9th electric capacity C9, the tenth electric capacity C10, the first electrochemical capacitor C ' 1 and the second electrochemical capacitor C ' 2, mould
The live wire termination civil power high-voltage line of number converter U7, the zero line termination civil power low-voltage line of analog-digital converter U7, analog-digital converter U7
Earth terminal ground connection, the outfan of analog-digital converter U7 is the 12v power end of the first power module 15 or second source module 25
And be connected with the 12v end of transformator U8, and the 12v end of transformator U8 is connected to the positive pole of the 7th electric capacity C7, the two of transformator U8 connect
Ground end, the negative pole of the 7th electric capacity C7 and the equal ground connection of negative pole of the 8th electric capacity C8, the 5v end of transformator U8 is the first power supply mould
The 5v power end of block 15 or second source module 25, the 5v end of transformator U8 is connected to the input of voltage-releasing voltage stabilizer U9, and the tenth
The positive pole of electric capacity C10 and the positive pole of the second electrochemical capacitor C ' 2 are connected to the input of voltage-releasing voltage stabilizer U9, voltage-releasing voltage stabilizer
The earth terminal of U9, the negative pole of the 9th electric capacity C9, the negative pole of negative pole the tenth electric capacity C10 of the first electrochemical capacitor C ' 1 and the second electricity
Solve the equal ground connection of negative pole of electric capacity C ' 2, two outfans of voltage-releasing voltage stabilizer U9, the positive pole of the 9th electric capacity C9 and the first electrochemical capacitor
The positive pole of C ' 1 is connected to a node and 3.3v power end that this node is the first power module 15 or second source module 25.
The operation principle of the present embodiment: during work, near-end unit 1 is mutual with concentrator 3 by Ethernet transport module 13
Data, the RJ45 Interface Terminal of Ethernet transport module 13 is transmitted to the first master controller 11, the first main control after receiving data
Device 11 passes to the first high-speed digital transmission radio station 14 after processing data, the data received are modulated into by the first high-speed digital transmission radio station 14
The wireless signal of 230MHz also enters 230MHz radio-frequency channel and sends.First high-speed digital transmission radio station 14 and the second high-speed digital transmission
The running parameter in radio station 24: communication frequency 230MHz, traffic rate 19200bps.Far-end unit 2 is by the second high-speed digital transmission electricity
Platform 24 accesses 230MHz radio-frequency channel and receives data, and then wireless signal counter modulation is become numeral by the second high-speed digital transmission radio station 24
Signal, and digital signal is passed to the second master controller 21, the data received are turned by the second master controller 21 after treatment
Issue GPRS module, GPRS module data are repacked and be sent to mobile communication network, it is achieved data are transmitted.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained at this
In the middle of the right of invention.
Claims (8)
1. a mobile communication network relay, it is characterised in that include near-end unit and far-end unit；
Near-end unit includes: the first master controller, the first local maintenance interface, Ethernet transport module, the first high-speed digital transmission electricity
Platform and the first power module, the first local maintenance interface, Ethernet transport module and the first high-speed digital transmission radio station are all connected with
To the first master controller, near-end unit is connected with concentrator by Ethernet transport module, and near-end unit is by the first local dimension
Protecting interface to be connected with external user terminal, the first power module is the first master controller, the first local maintenance interface, Ethernet biography
Defeated module and the first high-speed digital transmission radio station power；
Far-end unit includes: the second master controller, the second local maintenance interface, GPRS module, the second high-speed digital transmission radio station and
Second source module, the second local maintenance interface, GPRS module and the second high-speed digital transmission radio station are connected to the first main control
Device, far-end unit is arranged on the place that GPRS signal covers, and far-end unit passes through to be connected with mobile communication network with GPRS module,
Far-end unit is connected with external user terminal by the second local maintenance interface, and the first high-speed digital transmission radio station of near-end unit is with remote
Form 230MHz radio-frequency channel between second high-speed digital transmission radio station of end unit, second source module be the second master controller, the
Two local maintenance interfaces, GPRS module and the second high-speed digital transmission radio station power；
Wherein, Ethernet transport module includes: Ethernet chip, Ethernet peripheral circuit, networking transformator and RJ-45 interface
Terminal, Ethernet peripheral circuit is connected with Ethernet chip, and Ethernet chip is connected with concentrator by RJ-45 Interface Terminal,
Networking transformator is connected on the circuit that Ethernet chip is connected with RJ-45 Interface Terminal, with to concentrator to Ethernet chip
The signal sent carries out analog digital conversion and amplification.
Mobile communication network relay the most according to claim 1, it is characterised in that the first of RJ-45 Interface Terminal
End and the second end connect the first couple simulation I/O of networking transformator, the 3rd end of RJ-45 Interface Terminal and the 6th end
Connect the second couple simulation input/output terminal of networking transformator, the first numeral I/O of networking transformator and ether web-roll core
The pair of output of sheet is connected, the second digital IO end of networking transformator and second pair of input of Ethernet chip
It is connected, the circuit that second pair of input of Ethernet chip is connected with networking transformator is provided with the first mu balanced circuit, with
The second mu balanced circuit, and the first voltage stabilizing electricity it is provided with networking transformator on the circuit that too pair of output of web-roll core sheet is connected
Road is connected with the power end of network transformer, and connecting on the earth terminal of network transformer has voltage stabilizing grounded circuit, and voltage stabilizing connects
Ground circuit is connected with the 4th end, the 5th end, the 7th end and the 8th end of RJ-45 Interface Terminal.
Mobile communication network relay the most according to claim 2, it is characterised in that the first mu balanced circuit includes first
Resistance, the second resistance, the first electric capacity and the second electric capacity, the equal ground connection of negative pole of the first electric capacity and the second electric capacity, the second electric capacity
Positive pole is for connecting the power end of network transformer, and first resistance one end is connected with the positive pole of the first electric capacity, the first resistance another
End is connected with the positive pole of second pair of input of Ethernet chip, and second resistance one end is connected with the positive pole of the first electric capacity, and second
The resistance other end is connected with the negative pole of second pair of input of Ethernet chip.
Mobile communication network relay the most according to claim 2, it is characterised in that the second mu balanced circuit includes the 3rd
Resistance, the 4th resistance and the 3rd electric capacity, the minus earth of the 3rd electric capacity, the 3rd resistance one end and the 4th resistance one end are all with
The positive pole of three electric capacity be connected, the 3rd resistance other end, the 4th resistance other end respectively with the positive pole in pair of output, negative pole
It is connected.
Mobile communication network relay the most according to claim 2, it is characterised in that voltage stabilizing grounded circuit includes the 5th
Bearing of resistance, the 6th resistance, the 7th resistance, the 4th electric capacity, the 5th electric capacity and the 6th electric capacity, the 5th electric capacity and the 6th electric capacity
Extremely all ground connection, the positive pole of the 5th electric capacity and the 6th electric capacity all negative poles with the 4th electric capacity are connected, and the positive pole of the 4th electric capacity passes through
5th resistance is connected with the earth terminal of network transformer, and the positive pole of the 4th electric capacity is by the 6th resistance and RJ-45 Interface Terminal
4th end and the 5th end are connected, and the positive pole of the 4th electric capacity is by the 7th end and the 8th of the 7th resistance with RJ-45 Interface Terminal
End is connected.
Mobile communication network relay the most according to claim 1, it is characterised in that
Near-end unit also includes: the first infrared connection module being connected with the first controller；
Far-end unit also includes: the second infrared connection module being connected with second controller；
First local maintenance interface and the second local maintenance interface all include: differential data transceiver, the first photoelectrical coupler,
Second photoelectrical coupler, the 3rd photoelectrical coupler, user-interface terminal, the first sub-quick resistance, the second sub-quick resistance, the one or two pole
Pipe, the second diode, the 8th resistance and the 9th resistance, the receptor outfan of differential data transceiver and the first photoelectric coupling
The input of device connects, and the outfan of the first photoelectrical coupler and the input of the first controller or second controller are connected, poor
The receptor output Enable Pin of divided data transceiver and driver Enable Pin are all connected to and the outfan of the second photoelectrical coupler, the
The input of two photoelectrical couplers and the outfan of the first controller or second controller are connected, the driving of differential data transceiver
The outfan of device input and the 3rd photoelectrical coupler connects, the input of the 3rd photoelectrical coupler and the first controller or second
The outfan of controller is connected, and the power end of differential data transceiver connects the 5v electricity of the first power module or second source module
Source, the first end of user-interface terminal is connected to the anode of the first diode by the first sub-quick resistance, the first diode
Anode is connected with the B end of differential data transceiver, and the 5v power end of the first power module or second source module is by the 8th electricity
Resistance is connected to the anode of the first diode, and the anode of the first diode is connected with the A end of differential data transceiver, and differential data is received
The connected earth terminal by the 9th resistance connection differential data transceiver of B end sending out device is connected, the ground connection of differential data transceiver
End is connected with the negative electrode of the second diode, and the second end of user-interface terminal is connected to the second diode by the second sub-quick resistance
Anode, the anode of the second diode connects the negative electrode of the first diode.
Mobile communication network relay the most according to claim 1, it is characterised in that
Near-end unit also includes: the first display module being connected with the first controller；
Far-end unit also includes: the second display module being connected with second controller.
Mobile communication network relay the most according to claim 1, it is characterised in that the first power module and second
Power module all includes: analog-digital converter, transformator, voltage-releasing voltage stabilizer, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the tenth electricity
Appearance, the first electrochemical capacitor and the second electrochemical capacitor, the live wire termination civil power high-voltage line of analog-digital converter, the zero of analog-digital converter
Wire end civil power low-voltage line, the earth terminal ground connection of analog-digital converter, the outfan of analog-digital converter is the first power module or
The 12v power end of two power modules and being connected with the 12v end of transformator, and the 12v end of transformator is connected to the positive pole of the 7th electric capacity,
Two earth terminals of transformator, the negative pole of the 7th electric capacity and the equal ground connection of negative pole of the 8th electric capacity, the 5v end of transformator is first
The 5v power end of power module or second source module, the 5v end of transformator is connected to the input of voltage-releasing voltage stabilizer, the tenth electricity
The positive pole held and the positive pole of the second electrochemical capacitor are connected to the input of voltage-releasing voltage stabilizer, the earth terminal of voltage-releasing voltage stabilizer,
The negative pole of the 9th electric capacity, the negative pole of negative pole the tenth electric capacity of the first electrochemical capacitor and the equal ground connection of negative pole of the second electrochemical capacitor,
The positive pole of two outfans of voltage-releasing voltage stabilizer, the positive pole of the 9th electric capacity and the first electrochemical capacitor is connected to a node and this joint
Point is the 3.3v power end of the first power module or second source module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610697528.8A CN106160835B (en) | 2016-08-19 | 2016-08-19 | Mobile communication network relay device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610697528.8A CN106160835B (en) | 2016-08-19 | 2016-08-19 | Mobile communication network relay device |
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| CN106160835B CN106160835B (en) | 2022-07-29 |
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| CN106160835B (en) | 2022-07-29 |
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