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CN108199745B - System for parameter negotiation in copper wire data transmission process and application method - Google Patents

System for parameter negotiation in copper wire data transmission process and application method Download PDF

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Publication number
CN108199745B
CN108199745B CN201711416451.3A CN201711416451A CN108199745B CN 108199745 B CN108199745 B CN 108199745B CN 201711416451 A CN201711416451 A CN 201711416451A CN 108199745 B CN108199745 B CN 108199745B
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data
copper wire
signaling
circuit
triode
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CN108199745A (en
Inventor
蒲云林
颜兴茂
刘燕兵
魏涛
宋松
王敏
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Sichuan Netop Telecom Co ltd
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Sichuan Netop Telecom Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines
    • H04B3/542Systems for transmission via power distribution lines the information being in digital form
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines
    • H04B3/56Circuits for coupling, blocking, or by-passing of signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028Formatting

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

The invention discloses a system for parameter negotiation in the copper wire data transmission process, which comprises: carrying out data signal transmission by taking a copper wire as a medium to form two terminals of a copper wire transmission system; each terminal is additionally hung with a parameter negotiation system, and each parameter negotiation comprises a transmitting circuit and a receiving circuit which are matched with an opposite terminal; the sending circuit and the receiving circuit are connected with the copper wire transmission system through an access end, so that parameter negotiation or exchange is realized through the processing modules arranged on the parameter negotiation systems before data transmission is carried out, and then auto-negotiation of system bottom layer parameters is realized, and data communication is completed. The invention provides a system for parameter negotiation in a copper wire data transmission process, which is used as an auxiliary system to help an original copper wire transmission system to judge a channel state, quickly determine transmission parameters, establish communication and avoid manual parameter setting by a user.

Description

System for parameter negotiation in copper wire data transmission process and application method
Technical Field
The invention relates to a system for use in data transmission situations. More particularly, the present invention relates to a system for parameter negotiation in the case of data transmission using a copper wire as a transmission medium.
Background
Copper wire transmission has been developed into the most extensive and convenient broadband access mode, and plays an irreplaceable role in some specific transmission fields. However, in the copper wire transmission technology, a user is usually required to configure parameters such as master-slave and rate of a communication terminal and a channel, so that related parameters of a master end sending a signal and a slave end receiving the signal are matched with each other to realize data transmission between the master end and the slave end, but the setting of the parameters usually requires a professional broadband maintenance worker to set the parameters in a series, so that the user can smoothly access the broadband transmission system, the installation time of the user is influenced, the access speed of the user system is further influenced, the workload of the maintenance worker is increased, the installation efficiency of the user is influenced, and the user operation experience is poor.
Therefore, it is necessary to provide a method for avoiding the complicated setup of the user end to the communication system, automatically negotiating parameters or providing information such as line status in real time.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
The invention also aims to provide a system for parameter negotiation in the copper wire data transmission process, which can be used as an auxiliary system by a parameter transmission system hung on a traditional copper wire transmission system to help the original copper wire transmission system to judge the channel state, quickly determine the transmission parameters and establish communication, so that the trouble of manually setting the parameters is avoided after a user installs the system, the installation efficiency of installation and maintenance personnel is improved, the user experience is improved, and the access speed of the system is improved.
It is still another object of the present invention to provide a communication application method based on a parameter negotiation system, which is simple and reliable, and implements auto-negotiation capability of system-based parameters by exchanging parameters before the device establishes formal data communication.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a system for parameter negotiation during copper data transmission, comprising:
carrying out data signal transmission by taking a copper wire as a medium to form two terminals of a copper wire transmission system;
each terminal is additionally hung with a parameter negotiation system, and each parameter negotiation comprises a transmitting circuit and a receiving circuit which are matched with an opposite terminal;
the sending circuit and the receiving circuit are connected with the copper wire transmission system through an access end, so that parameter negotiation or exchange is realized through the processing modules arranged on the parameter negotiation systems before data transmission is carried out, and then auto-negotiation of system bottom layer parameters is realized, and data communication is completed.
Preferably, wherein the transmission circuit includes:
the two parallel first optocouplers or first triodes are arranged at the data transmitting end;
the isolation power supply is connected to each first optocoupler or each first triode;
and the input end of the first optocoupler or the first triode is connected with a data transmitting end.
Preferably, the base electrodes of the first triodes are respectively connected with the data transmitting terminal;
the collector of the first triode is respectively connected with the positive electrode and the negative electrode of the isolated output of the isolated power supply;
and the emitting electrode of the first triode outputs positive and negative direct current pulse voltages respectively so as to be connected into a copper wire transmission system.
Preferably, wherein the receiving circuit comprises:
the rectifying circuit is matched with the copper wire transmission system;
the second optocoupler or the second triode is matched with the rectifying circuit;
and the output end of the second optocoupler or the second triode is connected with a data receiving end.
Preferably, the rectifier circuit is configured as a bridge rectifier circuit;
the power input ends of the bridge rectifier circuits are matched with a copper wire transmission system;
and the positive and negative output ends of the bridge rectifier circuit are connected with a second optocoupler or a second triode.
Preferably, the input end is configured as any one of an optical coupler, a relay and a capacitor.
Preferably, the processing module is configured as any one of a single chip, a CPU, and an FPGA, so as to complete the processing and negotiation of master-slave, rate, channel control parameters, and states.
Preferably, the processing module at the data sending end sends the self-defined signaling content to the data receiving end according to a predetermined signaling format, so as to implement the switch negotiation of the master-slave, rate and power saving modes and the line anomaly detection through the signaling content.
Preferably, before the processing module at the data sending end sends the signaling, the isolation power supply generates the working power supply of the sending circuit;
the data transmitting terminal transmits a corresponding signal to drive the first triode or the first optocoupler, and generates a corresponding direct current pulse signal to be output to the processing module;
a processing module of the data sending end sends signaling data of the self-defined signaling content according to a preset signaling format based on the received direct current pulse signal;
the access end matched with the data sending end accesses the signaling data to the copper wire transmission system;
the access end matched with the data receiving end outputs the signaling data to the data receiving end;
a receiving circuit of the data receiving end carries out polarity adjustment on the received signal and then drives a second optocoupler or a second triode to realize the receiving of signaling data;
and a processing module at the data receiving end analyzes the signaling content of the received signaling data according to a preset signaling format based on the received signaling data to realize data transmission.
Preferably, wherein the signaling format is configured as an 8-bit binary code, each bit of data consists of a high-low level of 100 ms.
The invention at least comprises the following beneficial effects: firstly, the invention can be used as an auxiliary system through a parameter transmission system hung on a traditional copper wire transmission system, and helps the original copper wire transmission system to judge the channel state, quickly determine the transmission parameters and establish communication, so that after a user installs the system, the trouble of manually setting the parameters is avoided, the installation efficiency of installation and maintenance personnel is improved, the user experience is improved, and the access speed of the system is improved.
Secondly, the parameter negotiation system of the invention provides a simple and reliable communication method, before the equipment establishes formal data communication, parameter exchange is carried out, in short, the auxiliary system of the invention can realize the mutual correspondence of the parameter data related to communication between two terminals through a preset signaling format, and finish the translation of transmission content, so that the two terminals can directly identify the data content.
Thirdly, the parameter negotiation system of the invention can realize the electrical isolation between the inside and the outside of the equipment without influencing the safety characteristic and the environmental adaptability of the original equipment.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram illustrating an application principle of a system for performing parameter negotiation during copper data transmission according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the hardware of a data transmission link of a system for parameter negotiation during copper data transmission according to another embodiment of the present invention;
FIG. 3 is a software algorithm flow diagram of a system for performing parameter negotiation during copper data transmission according to another embodiment of the present invention;
fig. 4 is a schematic diagram of system data transmission for performing parameter negotiation during copper wire data transmission according to another embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-2, an implementation form of a system for performing parameter negotiation during copper data transmission according to the present invention includes:
carrying out data signal transmission by taking a copper wire 2 as a medium to form two terminals of a copper wire transmission system 1;
each terminal is additionally hung with a parameter negotiation system 3, and each parameter negotiation comprises a sending circuit 4 and a receiving circuit 5 which are matched with an opposite terminal;
the sending circuit and the receiving circuit are connected to the copper wire transmission system through an access terminal (not shown), so that parameter negotiation or exchange is realized through a processing module (not shown) arranged on each parameter negotiation system before data transmission is carried out, and then auto-negotiation of system bottom layer parameters is realized, and data communication is completed. The data transmission process of a single data transmission link is explained, the system hardware principle of the data transmission link is shown in fig. 2, a data transmitting end is additionally connected with a transmitting circuit in a hanging mode, and a transmitting part firstly generates a working power supply of the transmitting circuit through an isolation power supply to achieve the purpose of electrical isolation inside and outside the equipment. Then, a triode, an optocoupler and other devices are driven by a sending signal to realize data sending; the receiving part adjusts the polarity of a received signal through a rectifying circuit and drives an optocoupler or a triode to realize data receiving; the copper line that sets up between data sending end and data receiving terminal passes through the access end with sending circuit and receiving circuit and inserts copper line transmission system, and the access part then can be according to transmission system's characteristic, inserts through modes such as opto-coupler, relay, electric capacity and then before using the copper line to carry out data transmission as the medium, through realizing parameter negotiation or exchange with sending circuit, receiving circuit matched with processing module, realizes the auto-negotiation of system bottom parameter. By adopting the scheme, the system consists of two parts, namely a hardware circuit and a software protocol. The hardware circuit is optional, and the software is customizable and expandable. The system application principle is as shown in figure 1, and the system has the advantages of simple structure, strong practicability and good adaptability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
As shown in fig. 2, in another example, the transmission circuit includes:
two first optocouplers or first triodes 6 which are connected in parallel and arranged at the data transmitting end;
an isolation power supply 7 connected to each first optocoupler or first triode;
and the input end of the first optocoupler or the first triode is connected with a data transmitting end. The transmitting part adopting the scheme firstly generates a working power supply of the transmitting circuit through an isolated power supply, so that the purpose of electrically isolating the inside and the outside of the equipment is achieved. And then the device such as a triode or an optocoupler is driven by a sending signal to realize data sending, so that the electrical isolation between the hardware part of the parameter system and the copper wire data transmission system can be effectively realized, the safety characteristic and the environmental adaptability of the original equipment are not influenced, and the device has the advantages of good implementable effect, simple structure and good implementable effect. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
In another example, the base electrodes of the first triodes are respectively connected with a data transmitting terminal;
the collector of the first triode is respectively connected with the positive electrode and the negative electrode of the isolated output of the isolated power supply;
and the emitting electrode of the first triode outputs positive and negative direct current pulse voltages respectively so as to be connected into a copper wire transmission system. The scheme is only described for the circuit connection mode of the transmitting circuit adopting the triode, so that the circuit connection mode is more practical, can meet the signal transmission requirement of the transmitting circuit, and has the advantages of good implementable effect and strong operability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
As shown in fig. 2, in another example, the receiving circuit includes:
a rectifying circuit 8 matched with the copper wire transmission system;
a second optocoupler or a second triode 9 matched with the rectifying circuit;
and the output end of the second optocoupler or the second triode is connected with a data receiving end. The receiving part of the scheme adjusts the polarity of the received signal through the rectifying circuit and then drives the optocoupler or the triode to receive data, and the circuit has the advantages of simple structure, controllable cost and good implementation effect. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
In another example, the rectifier circuit is configured as a bridge rectifier circuit;
the power input ends of the bridge rectifier circuits are matched with a copper wire transmission system;
and the positive and negative output ends of the bridge rectifier circuit are connected with a second optocoupler or a second triode. The scheme is only used for explaining the circuit connection mode of the receiving circuit adopting the rectifying circuit so as to be more practical, can meet the signal receiving requirement of the receiving circuit, and has the advantages of good implementable effect and strong operability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
In another example, the input end is configured as any one of an optical coupler, a relay and a capacitor. The access part adopting the scheme can be accessed in the modes of an optical coupler, a relay, a capacitor and the like according to the characteristics of a transmission system. The optical coupler is generally used for communication of small signals, but has certain loss on transmitted signals, and is not suitable for a transmission system of large current, so that the optical coupler is less in use. The relay can realize the physical isolation of the original system and the original system, so that the two systems are mutually independent and have no electrical interference with each other. Therefore, the relay is used for replacing the optical coupler, so that the method is a good solution and becomes a conventional choice. The system usually uses direct current pulse signals for communication, has a frequency band which is greatly different from that of the original system, and cannot generate mutual interference, so that the system can be accessed by using a capacitor. The capacitor access can be used for realizing the simultaneous operation of the original system, and the capacitor has small volume and low price, so the capacitor access is an ideal choice, and the capacitor access has the advantages of good implementable effect, strong operability and good stability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
In another example, the processing module is configured as any one of a single chip, a CPU, and an FPGA to complete the processing and negotiation of master-slave, rate, channel control parameters, and status. The system software part can use any embedded or upper computer software system such as a singlechip, a CPU and the like, has the functions of finishing the processing and negotiation of parameters and states such as master-slave, speed, channel control and the like, and has the advantages of good adaptability and good implementable effect. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
In another example, the processing module at the data sending end sends self-defined signaling content to the data receiving end according to a predetermined signaling format, so as to implement master-slave, rate, power saving mode switch negotiation and line anomaly detection through the signaling content. The signalling format using this scheme is shown by the following code table:
0xA8 10101000 wake-up 8*200ms=1600ms
0xB8 10111000 Response to
0x80 10000000 Responding to
0x90 10010000 Disconnect/request master slave/request speed
0xB0 10110000 Disagreement of
0xC8 11001000 Agree to
0xC0 11000000 Responding to disagreement
0xA0 10100000 Respond to consent
To complete the processing and negotiation of master-slave, rate, channel control and other parameters and states, specifically, the processing flow of the software is as shown in fig. 3, and the DCP transmission time control in P1 and P2 shown in fig. 3: the transmission is mainly carried out once every 2S, and 6 times of transmission form a group; sending every (3.4S,10S) for 6 times; wait 3.4S from detecting the disconnection before sending for the first time. If one group fails to be sent, sending the next group every T1 mS; the master terminal T1 is 5min, and the slave terminal T1 is radom (5min, 5min +3.4S), and the data passing flow between the data transmitting terminal and the data receiving terminal is as shown in fig. 4. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
In another example, before a processing module at a data transmitting end transmits a signaling, an isolation power supply generates a working power supply of a transmitting circuit;
the data transmitting terminal transmits a corresponding signal to drive the first triode or the first optocoupler, and generates a corresponding direct current pulse signal to be output to the processing module;
a processing module of the data sending end sends signaling data of the self-defined signaling content according to a preset signaling format based on the received direct current pulse signal;
the access end matched with the data sending end accesses the signaling data to the copper wire transmission system;
the access end matched with the data receiving end outputs the signaling data to the data receiving end;
a receiving circuit of the data receiving end carries out polarity adjustment on the received signal and then drives a second optocoupler or a second triode to realize the receiving of signaling data;
and a processing module at the data receiving end analyzes the signaling content of the received signaling data according to a preset signaling format based on the received signaling data to realize data transmission. The technical scheme is adopted to implement the work flow of the hardware component and the software component of the parameter negotiation system so as to realize the functions of the invention in a mutual matching way, and has the advantages of good implementable effect and good implementable effect. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
In another example, the signaling format is configured as an 8-bit binary code, with each bit of data consisting of a 100ms high-low level. The signaling format of the parameter negotiation system is customized by adopting the scheme, so that the signaling format and the signaling format are matched with each other to realize the claimed function of the invention, and the method has the advantages of good implementable effect and good implementable effect. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the system and method for parameter negotiation during copper wire transmission of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.

Claims (6)

1. A system for parameter negotiation during copper wire data transmission, comprising:
carrying out data signal transmission by taking a copper wire as a medium to form two terminals of a copper wire transmission system;
each terminal is additionally hung with a parameter negotiation system, and each parameter negotiation comprises a transmitting circuit and a receiving circuit which are matched with an opposite terminal;
the sending circuit and the receiving circuit are accessed into the copper wire transmission system through an access end, so that parameter negotiation or exchange is realized through the processing modules arranged on the parameter negotiation systems before data transmission is carried out, and further, auto-negotiation of system bottom layer parameters is realized, and data communication is completed;
the transmission circuit includes:
the two parallel first optocouplers or first triodes are arranged at the data transmitting end;
the isolation power supply is connected to each first optocoupler or each first triode;
the input end of the first optocoupler or the first triode is connected with the data transmitting end;
the base electrode of the first triode is respectively connected with the data transmitting end;
the collector of the first triode is respectively connected with the positive electrode and the negative electrode of the isolated output of the isolated power supply;
the emitter of the first triode outputs positive and negative direct current pulse voltages respectively to be connected into a copper wire transmission system;
the receiving circuit includes:
the rectifying circuit is matched with the copper wire transmission system;
the second optocoupler or the second triode is matched with the rectifying circuit;
the output end of the second optocoupler or the second triode is connected with a data receiving end;
the rectifier circuit is configured as a bridge rectifier circuit;
the power input ends of the bridge rectifier circuits are matched with a copper wire transmission system;
and the positive and negative output ends of the bridge rectifier circuit are connected with a second optocoupler or a second triode.
2. The system for parameter negotiation during copper wire data transmission according to claim 1, wherein the access terminal is configured as any one of an optocoupler, a relay, and a capacitor.
3. The system for parameter negotiation during copper wire data transmission according to claim 1, wherein the processing module is configured as any one of a single chip, a CPU, and an FPGA to complete the processing and negotiation of master-slave, rate, channel control parameters and status.
4. A method for applying the system for parameter negotiation during copper wire data transmission according to any of claims 1-3, comprising: and the processing module at the data sending end sends self-defined signaling content to the data receiving end according to a preset signaling format so as to realize switch negotiation of master-slave, rate and power-saving modes and line abnormity detection through the signaling content.
5. The method of claim 4, wherein before the processing module at the data transmitting end sends the signaling, the isolation power supply generates the working power supply of the transmitting circuit;
the data transmitting terminal transmits a corresponding signal to drive the first triode or the first optocoupler, and generates a corresponding direct current pulse signal to be output to the processing module;
a processing module of the data sending end sends signaling data of the self-defined signaling content according to a preset signaling format based on the received direct current pulse signal;
the access end matched with the data sending end accesses the signaling data to the copper wire transmission system;
the access end matched with the data receiving end outputs the signaling data to the data receiving end;
a receiving circuit of the data receiving end carries out polarity adjustment on the received signal and then drives a second optocoupler or a second triode to realize the receiving of signaling data;
and a processing module at the data receiving end analyzes the signaling content of the received signaling data according to a preset signaling format based on the received signaling data to realize data transmission.
6. The method of claim 5, wherein the signaling format is configured as an 8-bit binary code, and each bit of data is composed of a 100ms high-low level.
CN201711416451.3A 2017-12-25 2017-12-25 System for parameter negotiation in copper wire data transmission process and application method Active CN108199745B (en)

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US20040090970A1 (en) * 2002-11-11 2004-05-13 Sanchez Cheryl A. Distribution of data flows to local loop subscribers by an access multiplexer
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