CN110212947A - The network transmission module that a kind of data and power supply pass altogether with cable - Google Patents
The network transmission module that a kind of data and power supply pass altogether with cable Download PDFInfo
- Publication number
- CN110212947A CN110212947A CN201910472483.8A CN201910472483A CN110212947A CN 110212947 A CN110212947 A CN 110212947A CN 201910472483 A CN201910472483 A CN 201910472483A CN 110212947 A CN110212947 A CN 110212947A
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- CN
- China
- Prior art keywords
- power supply
- chip
- network
- data
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2691—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation involving interference determination or cancellation
Abstract
The network transmission module that the present invention discloses a kind of data and power supply passes altogether with cable, including the distal end transmitter to match and local end-receiver, the local end-receiver includes sequentially connected first CPU, first network chip, the first exchange chip, the first master chip and the first amplifier between the first RS232 data port and the first power supply signal Hybrid port and the first RS232 data port and the first power supply signal output port；The network signal entered by cable is transferred to the first CPU and is converted to ofdm signal, the first power supply signal Hybrid port is transferred to after the first amplifier amplifies ofdm signal after first network chip processing；The RS232 data entered by the first RS232 data port mix with power supply signal after passing sequentially through the first CPU, first network chip, the first exchange chip, the first master chip and the first amplifier by the first CPU, are transferred to distal end transmitter.
Description
Technical field
The present invention relates to a kind of web-transporting device, the network transmission passed altogether more particularly, to a kind of data and power supply with cable
Module.
Background technique
Network transmission refers to that the variation of the adjustment with a series of route (optical fiber, twisted pair etc.) through oversampling circuit is passed according to network
Defeated agreement is come the process that is communicated.Wherein network transmission needs in medium, that is, network between sender and recipient
Physical path, it has a certain impact to the data communication tool of network.Common transmission medium has: twisted pair, coaxial cable, light
Fine, wireless transmission medium.It is transmitted in network protocol, that is, network (including internet), some specifications of management information.
Such as application No. is CN201510561063.9 to provide a kind of PLC network transmitter, comprising: input power cord, PLC net
Network transmission box, the cable network connecting pin being set on PLC network transmission box, at least one power supply output line, PLC network
Transmission box includes power supply module, digital microchip processor, and input power cord is electrically connected at power supply module and digital microchip
Manage device, digital microchip processor electrical connection power supply module and cable network connecting pin.The internal circuit of the network transmitter is real
Show and network signal is loaded into power supply output, and can realize and the network signal being loaded by input power cord is converted into independent electricity
Source signal and network signal are transferred to the network equipment, can not only save wiring, but also can save the network switch, reduce
Intraoffice network wiring cost.
And pass through 4G network application No. is one kind disclosed in CN201821845976.9 and carry out PLC remote control module,
Including shell, PLC host, 4G communication module, mode selection circuit and SIM interface circuit, it is bridge by means of 4G network, is not necessarily to
It can be solved the problems, such as to scene, work is allowed to become light；It is previously required to the work largely gone on business and stays indoors and can solve now
Certainly, cost is reduced.
Since science and technology continues to develop, traditional analog video is no longer satisfied the market demand, public order safety, production
Safety, property safety etc. increasingly receive the attention of people, possess networking, intelligent, digitlization, the network of long-range feature
Video monitoring system becomes new application trend；Electrical screen and other RS232 equipment, advertisement dispensing and device systems upgrading,
Tradition uses USB flash disk waste of manpower financial resources, and client wishes that directly equipment can be upgraded or replace ad content in computer room.Portion
Divide scene without power available, needs to transmit power supply from computer room end to front end, rewiring needs labor intensive financial resources.
Summary of the invention
The PLC network transmitter that the present invention provides a kind of network signal and RS232 data and power supply signal passes altogether with cable, and
The transmitter may be implemented power supply and network signal, RS232 signal that access inputs being converted into independent signal difference defeated again
Out, network layout is simpler, saves cable, artificial, shortening cable wiring manufacture duration.
To solve the above problems, the present invention provides a kind of network signal and RS232 data and power supply signal passes altogether with cable
PLC network transmitter can transmit power supply, network signal, RS232 signal with cable by power supply line；Including the distal end hair to match
Device and local end-receiver are sent,
The local end-receiver includes the first RS232 data port and the first power supply signal Hybrid port, Yi Ji
Sequentially connected first CPU, first network chip, first are handed between one RS232 data port and the first power supply signal output port
Change chip, the first master chip and the first amplifier；The network signal entered by cable is transferred to after first network chip processing
First CPU is converted to ofdm signal, and the first power supply signal Hybrid port is transferred to after the first amplifier amplifies ofdm signal；
The RS232 data entered by the first RS232 data port pass sequentially through the first CPU, first network chip, the by the first CPU
It is mixed after one exchange chip, the first master chip and the first amplifier with power supply signal, is transferred to distal end transmitter.
In the present invention, the design of carrier communication unit: OFDM modulation-demodulation technique, using high pass AR7400+AR1500 chip
Group, the chipset have reliable anti-interference ability in the case where guaranteeing bandwidth, guarantee to carry under elevator complex electromagnetic environment
Wave communication works normally.It monitors control unit and uses MSP430G2001MCU, MCU passes through monitoring master chip GPIO after working on power
Mouthful, judge master chip work it is whether normal, when monitor master chip work it is abnormal when by metal-oxide-semiconductor cutting remove MCU power supply it
Outer all chip powers 10 seconds, then power on again, are the equal of once restarting firmly.Main control unit design: main control unit is adopted
With STM32F103C8 master chip, carrier data is saved in the buffer, etc. carrier datas has passed later reconvert at serial ports number
According to being sent to advertisement screen.This programme at least needs two products just to can be used, and one is local end-receiver, remaining is remote
Hold transmitter.Local side and distal end be identical product, by configuration software by products configuration be local side, distal end, transmission
Device mainly consists of the following parts: input power cord 1, isolation circuit 2, power supply, signal Hybrid port 3, DC12V power module 4,
Power supply chip 5, amplifier chip 6, master chip 7, exchanger chip 8, cpu chip 9, network chip 10, network inputs/output port
11, RS232 data-out port 12.
Preferably, the local end-receiver includes the first power input port, successively with the first power input port
The first power module and the first power supply chip of connection；
The first isolation circuit is connected between first power input port and the first power supply signal Hybrid port；
First power module is used to being converted to the 220V power supply that the first power input port inputs into the output of 12V power supply
To the first amplifier and the first power supply chip.
It is further preferred that the first power supply chip connecting with first power module is equipped with, by the 12V power supply of input
3.3V power supply is converted to export to the first singlechip chip, first network chip, the first exchange chip and the first master chip.
The distal end transmitter is identical as the local structure of end-receiver.The distal end transmitter includes the 2nd RS232
Between data port and second source signal Hybrid port and the 2nd RS232 data port and second source signal output port
Sequentially connected 2nd CPU, the second network chip, the second exchange chip, the second master chip and the second amplifier；Entered by cable
Network signal after the processing of the second network chip, be transferred to the 2nd CPU and be converted to ofdm signal, by the second amplifier by OFDM
Second source signal Hybrid port is transferred to after signal amplification；The RS232 data entered by the 2nd RS232 data port are by the
Two CPU, pass sequentially through after the 2nd CPU, the second network chip, the second exchange chip, the second master chip and the second amplifier with power supply
Signal mixing, is sent to local end-receiver.
Preferably, the distal end transmitter includes second source input port, is successively connected with second source input port
The second power supply module and second source chip connect；
The second isolation circuit is connected between the second source input port and second source signal Hybrid port；
The second power supply module is used to being converted to the 220V power supply that second source input port inputs into the output of 12V power supply
To the second amplifier and second source chip.
It is further preferred that the second source chip connecting with the second power supply module is equipped with, by the 12V power supply of input
3.3V power supply is converted to export to the second singlechip chip, the second network chip, the second exchange chip and the second master chip.
In the present invention, the distal end transmitter carries out signal with the local end-receiver by two core wires and is electrically connected.
Due to using above-mentioned design scheme, the network transmission module that a kind of data provided by the invention and power supply pass altogether with cable
The remote transmission of high-speed network data signals and 1 road RS232 signal can be achieved, transmission range is farthest up to 1000 meters, most
Big band width in physical can achieve 500Mbps；By the way that anti-interference isolation circuit is arranged, the noise jamming in power grid is filtered out, coupling is passed through
Clutch, which is realized, is loaded into power supply output for network signal, and can realize and turn the network signal and power supply signal that are loaded by power supply line
Change independent power supply signal into, network signal is transferred to the network equipment, can not only save wiring reduce elevator shaft be routed to
This, and improve the obtained network signal of subsequent network device and power quality.
Detailed description of the invention
Fig. 1 is network transmission module structural schematic diagram in the present invention.
Fig. 2 is the distal end transmitter architecture schematic diagram of network transmission module in the present invention.
Fig. 3 is the local side receiver architecture schematic diagram of network transmission module in the present invention.
In Fig. 1: 1 distal end transmitter, 2 local end-receivers.
In Fig. 2: 1-1 power input port, 1-2 isolation circuit, 1-3 power supply signal Hybrid port, 1-4 power module, 1-5
Power supply chip, 1-6 amplifier, 1-7 master chip, 1-8 exchange chip, 1-9CPU processor, 1-10 network chip, 1-11 cable connect
Mouthful, 1-12RS232 interface.
In Fig. 3: 2-1 power input port, 2-2 isolation circuit, 2-3 power supply signal Hybrid port, 2-4 power module, 2-5
Power supply chip, 2-6 amplifier, 2-7 master chip, 2-8 exchange chip, 2-9CPU processor, 2-10 network chip, 2-11 cable connect
Mouthful, 2-12RS232 interface.
Specific embodiment
Below with reference to embodiment and attached drawing, the present invention will be described in detail, but the present invention is not limited to this.
As shown in Figure 1, data of the present invention and power supply include distal end transmitter 1 and local with the network transmission module that cable passes altogether
End-receiver 2；As shown in Fig. 2, the distal end transmitter 1 includes 1-1 power input port, 1-2 isolation circuit, 1-3 power supply letter
Number Hybrid port, 1-4 power module, 1-5 power supply chip, 1-6 amplifier, 1-7 master chip, 1-8 exchange chip, 1-9CPU processing
Device, 1-10 network chip, 1-11 cable interface, 1-12RS232 interface；Local end-receiver 2 includes 2-1 power supply as shown in Figure 3
Input port, 2-2 isolation circuit, 2-3 power supply signal Hybrid port, 2-4 power module, 2-5 power supply chip, 2-6 amplifier, 2-7
Master chip, 2-8 exchange chip, 2-9CPU processor, 2-10 network chip, 2-11 cable interface, 2-12RS232 interface.
The distal end transmitter 1 carries out signal with the local end-receiver 2 by two core wires and is electrically connected, the distal end
In transmitter 1, power input 1-1 is electrically connected with isolation circuit 1-2, isolation circuit 1-2 and power supply, signal Hybrid port 1-3 electricity
Connection, power input 1-1 are electrically connected with power module 1-4, and power module 1-4 is electrically connected with amplifier, power module 1-4 and power supply
Chip 1-5 electrical connection, power supply chip 1-5 master chip 1-7 electrical connection, power supply chip 1-5 are electrically connected with CPU1-9, power supply chip 1-
5 are electrically connected with exchange chip 1-8, and power supply chip 1-5 is electrically connected with network chip 1-10,232 port 1-12 and CPU1-9 signal
Connection, CPU1-9 are connect with network chip 1-10 signal, and network chip 1-10 is connect with exchange chip 1-8 signal, cable interface
1-11 is connect with exchange chip 1-8 signal, and exchange chip 1-8 is connect with master chip signal, master chip 1-7 and amplifier 1-6 signal
Connection, amplifier 1-6 are connect with power supply signal Hybrid port signal.
In the local end-receiver 2, power input 2-1 is electrically connected with isolation circuit 2-2, isolation circuit 2-2 and power supply,
Signal Hybrid port 2-3 electrical connection, power input 2-1 are electrically connected with power module 2-4, and power module 2-4 is electrically connected with amplifier,
Power module 2-4 is electrically connected with power supply chip 2-5, power supply chip 2-5 master chip 2-7 electrical connection, power supply chip 2-5 and CPU2-9
Electrical connection, power supply chip 2-5 are electrically connected with exchange chip 2-8, and power supply chip 2-5 is electrically connected with network chip 2-10,232 ports
2-12 is connect with CPU2-9 signal, and CPU2-9 is connect with network chip 2-10 signal, and network chip 2-10 and exchange chip 2-8 believe
Number connection, cable interface 2-11 connect with exchange chip 2-8 signal, and exchange chip 2-8 is connect with master chip signal, master chip 2-
7 connect with amplifier 2-6 signal, and amplifier 2-6 is connect with power supply signal Hybrid port signal.
When network signal is connected to the local side network equipment by cable, network signal after exchange chip is handled,
It is transferred to master chip, serial data is converted to N number of parallel data and distributes to N number of different subchannel, process is a series of
Baseband signal is exported by D/A and low-pass filter according to serial mode after processing, finally passes through up-conversion output OFDM signal,
Power supply, signal Hybrid port are transferred to after amplifier chip amplifies ofdm signal, power supply passes through isolation from power input
It after circuit filters out the noise jamming in power grid, is mixed with ofdm signal, RS232 data pass through after passing through CPU microprocessor first
It crosses after network chip is converted into network data, is transferred to amplifier after exchange chip, master chip OFDM modulation, amplifier chip will
Signal power mixes after being further amplified with power supply, is transferred to remote network devices by two core wires.
When ofdm signal and power supply are passed to remote network devices by two core wires, power supply is connected to after passing through isolation circuit
Power output terminal is load supplying, and ofdm signal is transferred to master chip by amplifier, and ofdm signal is demodulated into net by master chip
Network signal, subnetwork signal are output to network interface after passing through exchange chip, and another part network signal passes through network chip
Processing is transferred to CPU, and RS232 signal is converted into after embedded micro process, is output to RS232 equipment by DB9 interface.
The foregoing is merely preferable implementation examples of the invention, are not intended to restrict the invention, it is all in spirit of that invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. the network transmission module that a kind of data and power supply pass altogether with cable, which is characterized in that including the distal end transmitter to match
With local end-receiver,
The local end-receiver includes the first RS232 data port and the first power supply signal Hybrid port and first
Sequentially connected first CPU, first network chip, the first exchange between RS232 data port and the first power supply signal output port
Chip, the first master chip and the first amplifier；The network signal entered by cable is transferred to the after first network chip processing
One CPU is converted to ofdm signal, and the first power supply signal Hybrid port is transferred to after the first amplifier amplifies ofdm signal；By
The RS232 data that first RS232 data port enters pass sequentially through the first CPU, first network chip, first by the first CPU
It is mixed after exchange chip, the first master chip and the first amplifier with power supply signal, is transferred to distal end transmitter.
2. the network transmission module that data as described in claim 1 and power supply pass altogether with cable, which is characterized in that the local
End-receiver includes the first power input port, with sequentially connected first power module of the first power input port and the first electricity
Source chip；
The first isolation circuit is connected between first power input port and the first power supply signal Hybrid port；
First power module is used to being converted to the 220V power supply that the first power input port inputs into 12V power supply and export to the
One amplifier and the first power supply chip.
3. the network transmission module that data as claimed in claim 2 and power supply pass altogether with cable, which is characterized in that be equipped with it is described
First power supply chip of the first power module connection, is converted to 3.3V power supply to the first singlechip for the 12V power supply of input
Chip, first network chip, the first exchange chip and the output of the first master chip.
4. the network transmission module that data as described in claim 1 and power supply pass altogether with cable, which is characterized in that the distal end hair
Send device identical as the local structure of end-receiver.
5. the network transmission module that data as claimed in claim 4 and power supply pass altogether with cable, which is characterized in that the distal end
Transmitter includes the 2nd RS232 data port and second source signal Hybrid port and the 2nd RS232 data port and second
Sequentially connected 2nd CPU, the second network chip, the second exchange chip, the second master chip and between power supply signal output port
Two amplifiers；The network signal entered by cable is transferred to the 2nd CPU and is converted to OFDM letter after the processing of the second network chip
Number, second source signal Hybrid port is transferred to after the second amplifier amplifies ofdm signal；By the 2nd RS232 data port
The RS232 data of entrance pass sequentially through the 2nd CPU, the second network chip, the second exchange chip, the second main core by the 2nd CPU
It is mixed after piece and the second amplifier with power supply signal, is sent to local end-receiver.
6. the network transmission module that data as claimed in claim 5 and power supply pass altogether with cable, which is characterized in that the distal end
Transmitter includes second source input port, with the sequentially connected second power supply module of second source input port and second source
Chip；
The second isolation circuit is connected between the second source input port and second source signal Hybrid port；
The second power supply module is used to being converted to the 220V power supply that second source input port inputs into 12V power supply and export to the
Two amplifiers and second source chip.
7. the network transmission module that data as claimed in claim 6 and power supply pass altogether with cable, which is characterized in that be equipped with it is described
The second source chip of second power supply module connection, is converted to 3.3V power supply to the second singlechip for the 12V power supply of input
Chip, the second network chip, the second exchange chip and the output of the second master chip.
8. the network transmission module that data as described in claim 1 and power supply pass altogether with cable, which is characterized in that the distal end hair
Device is sent to carry out signal with the local end-receiver by two core wires and be electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472483.8A CN110212947A (en) | 2019-05-31 | 2019-05-31 | The network transmission module that a kind of data and power supply pass altogether with cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472483.8A CN110212947A (en) | 2019-05-31 | 2019-05-31 | The network transmission module that a kind of data and power supply pass altogether with cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110212947A true CN110212947A (en) | 2019-09-06 |
Family
ID=67790253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910472483.8A Pending CN110212947A (en) | 2019-05-31 | 2019-05-31 | The network transmission module that a kind of data and power supply pass altogether with cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110212947A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090110085A1 (en) * | 2007-10-29 | 2009-04-30 | Lightwaves Systems, Inc. | High bandwidth data transport system |
| CN206644827U (en) * | 2017-04-20 | 2017-11-17 | 昆山网电科技有限公司 | Applied to the power line carrier module on goat |
| CN207283546U (en) * | 2017-10-25 | 2018-04-27 | 广州美高立电气有限公司 | A kind of gateway based on broadband power line carrier communication |
| CN209028807U (en) * | 2018-10-31 | 2019-06-25 | 绍兴奥顿电子有限公司 | The network transmitter that a kind of PLC carrier band RS232 data and power supply pass altogether with cable |
-
2019
- 2019-05-31 CN CN201910472483.8A patent/CN110212947A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090110085A1 (en) * | 2007-10-29 | 2009-04-30 | Lightwaves Systems, Inc. | High bandwidth data transport system |
| CN206644827U (en) * | 2017-04-20 | 2017-11-17 | 昆山网电科技有限公司 | Applied to the power line carrier module on goat |
| CN207283546U (en) * | 2017-10-25 | 2018-04-27 | 广州美高立电气有限公司 | A kind of gateway based on broadband power line carrier communication |
| CN209028807U (en) * | 2018-10-31 | 2019-06-25 | 绍兴奥顿电子有限公司 | The network transmitter that a kind of PLC carrier band RS232 data and power supply pass altogether with cable |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190906 |