CN109274400A - The information transferring method and system of conveying length in a kind of raising cable - Google Patents
The information transferring method and system of conveying length in a kind of raising cable Download PDFInfo
- Publication number
- CN109274400A CN109274400A CN201811251251.1A CN201811251251A CN109274400A CN 109274400 A CN109274400 A CN 109274400A CN 201811251251 A CN201811251251 A CN 201811251251A CN 109274400 A CN109274400 A CN 109274400A
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- signal
- electromagnetic wave
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention discloses a kind of information transferring methods of conveying length in raising cable, this method comprises: by the transmitting signal spread-spectrum for transmitting information and being modulated to high-frequency electromagnetic wave carrier signal in the cable and transmitting, the transmission signal after being transmitted demodulates the electromagnetic wave carrier and de-spreads the reception signal for generating transmission information.Based on above- mentioned information transmission method, the present invention also provides a kind of information transmission systems of conveying length in raising cable.Information transferring method of the present invention and system can carry biggish information content；The anti-interference ability and noise resisting ability of information transmission can be greatly improved, to extend conveying length of the information in cable.
Description
Technical field
The present invention relates to the technical field of detection method, in particular to a kind of information transmission for improving conveying length in cable
Method and system.
Background technique
Information transmission be by the information of transmission by electromagnetic wave carrier by way of transmit, but electromagnetic wave is in cable
When middle transmission, due to loss and to external radiation etc., transmission range is limited.In the prior art, improving conveying length method is
By reducing the frequency of electromagnetic wave, but the information content that low-frequency electromagnetic wave carries is again smaller.
Therefore, a kind of the present invention provides raising frequency electromagnetic waves in the cable information transferring method of conveying length and it is
System.
Summary of the invention
The main purpose of the present invention is to provide it is a kind of raising cable in conveying length information transferring method and system,
Have the advantages that carrying contains much information and improves conveying length.
To achieve the above object, described the present invention provides a kind of information transferring method of conveying length in raising cable
Method includes:
Step S1, it by the transmitting signal spread-spectrum for transmitting information and is modulated to high-frequency electromagnetic wave carrier signal in the cable and carries out
Transmission；
Step S2, the transmission signal after being transmitted, which demodulates the electromagnetic wave carrier and de-spreads, generates connecing for transmission information
The collection of letters number.
Preferably, step S1 is specifically included:
Step S11, the transmitting signal for transmitting data is generated into baseband signal；
Step S12, spread-spectrum signal is generated after being spread the baseband signal；
Step S13, high-frequency electromagnetic wave carrier signal used in cable transmission is generated, the spread-spectrum signal is modulated to electromagnetic wave
Transmission signal is formed on carrier wave to be transmitted in cable.
Preferably, step S2 is specifically included:
Step S21, demodulated signal is generated after being demodulated the electromagnetic wave carrier transmitted on signal；
Step S22, the baseband signal will be generated after demodulated signal despreading；
Step S23, the baseband signal is generated to the reception signal of transmission data.
Preferably, the system comprises signal emission module and signal receiving modules；
Signal emission module, for will transmit the transmitting signal spread-spectrum of data and be modulated to high-frequency electromagnetic wave carrier signal described
It is transmitted in cable；
Signal receiving module demodulates for the transmission signal after being transmitted and de-spreads the reception letter of production transmission data
Number.
Preferably, the signal emission module and the signal receiving module are mounted in the cable, the signal
Transmitting module is set on the cable at signal transmitting, and the signal receiving module is set to signal receiving area on the cable.
Preferably, the signal emission module specifically includes:
Baseband transmission unit, the transmitting signal for that will transmit data generate baseband signal；Base-band spread-spectrum unit, being used for will
The baseband signal generates spread-spectrum signal after being spread；Electromagnetic wave generates unit, for generating electricity used in cable transmission
Magnetic wave carrier wave；And electromagnetic wave modulation unit, it is passed for the spread-spectrum signal to be modulated to be formed on the electromagnetic wave carrier in cable
Defeated signal is transmitted；
The baseband transmission unit, the base-band spread-spectrum unit, electromagnetic wave generate unit and electromagnetic wave modulation unit successively
Connection, the electromagnetic wave generate unit and connect with the electromagnetic wave modulation unit.
Preferably, the signal receiving module specifically includes:
Electromagnetic wave demodulating unit, for generating demodulated signal after being demodulated the electromagnetic wave carrier transmitted on signal；Base
Band despread unit, for the baseband signal will to be generated after demodulated signal despreading；And Baseband-Receive unit, being used for will be described
Baseband signal generates the reception signal of transmission data；
The electromagnetic wave demodulating unit, the base band despread unit and the Baseband-Receive unit are sequentially connected, the electricity
Magnetic wave generates unit and connect with the electromagnetic wave demodulating unit.
Compared with prior art, the invention has the following beneficial effects: the present invention is passed by high-frequency electromagnetic wave carrier signal
Defeated information can carry biggish information content；The transmitting signal of transmission information is spread, using much larger than information bandwidth itself
Bandwidth for transmission information, can be greatly improved information transmission anti-interference ability and noise resisting ability, to extend information
Conveying length in cable；By despreading the transmission information of original bandwidth can be received in information receiving area.
Detailed description of the invention
Fig. 1 is the flow chart that the embodiment of the present invention improves the information transferring method of conveying length in cable.
Fig. 2 is the structural schematic diagram that the embodiment of the present invention improves the information transmission system of conveying length in cable.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
In field of data transmission, high-frequency electromagnetic wave energy is carried compared with large information capacity, and the present invention can using high-frequency electromagnetic wave carrier signal
Guarantee to carry biggish information content；Meanwhile the signal for carrying information is spread, information transmission can be greatly improved
Anti-interference ability and noise resisting ability, to extend conveying length of the information in cable.Fig. 1 is raising of the embodiment of the present invention
The flow chart of the information transferring method of conveying length in cable, as shown in Figure 1, the letter for improving conveying length in cable of the invention
Ceasing transmission method includes:
Step S1, the transmitting signal spread-spectrum for transmitting information and being modulated in the online cable of high-frequency electromagnetic wave carrier signal is passed
It is defeated；
Step S2, the transmission signal after being transmitted demodulates electromagnetic wave carrier and de-spreads the reception letter for generating transmission information
Number.
Transmission information spread and be modulated on high-frequency electromagnetic wave carrier signal at information transmitting, and information receiving area into
Row is reconciled high-frequency electromagnetic wave carrier signal and is de-spread, so that transmission information does not have the loss of information in entire transmission process.
To the processing method of transmission information at information transmitting specifically: the transmitting signal for transmitting data is generated base band letter
Number, spread-spectrum signal is generated after baseband signal is spread, and is generated high-frequency electromagnetic wave carrier signal used in cable transmission, will be spread
Transmission signal is formed in signal modulation to electromagnetic wave carrier to be transmitted in cable.Cause, the transmitting signal for transmitting data carry out
After spread spectrum, much larger than the bandwidth for transmission information of information bandwidth itself, the anti-interference ability of information transmission can be greatly improved
And noise resisting ability, to extend conveying length of the information in cable.Preferably, the bandwidth range of baseband signal is 1Kbps-
10Kbps, the bandwidth range of spread-spectrum signal is several hundred Kbps or so after spread spectrum.
When transmission information is transmitted to information receiving area, transmission information processing will be carried in cable and be reduced to original biography
Defeated information.Specifically, demodulated signal is generated after the electromagnetic wave carrier transmitted on signal is demodulated, after demodulated signal is de-spread
Baseband signal is generated, baseband signal is generated to the reception signal of transmission data.
Based on the above-mentioned information transferring method for improving conveying length in cable, Fig. 2 is that the embodiment of the present invention improves cable
The structural schematic diagram of the information transmission system 100 of middle conveying length, as shown in Fig. 2, transmitting length in the raising cable of the present embodiment
The information transmission system 100 of degree includes signal emission module 10 and signal receiving module 20, is carried out below to modules detailed
Description:
Wherein, the signal emission module 10 of this implementation is for will transmit the transmitting signal spread-spectrum of data and be modulated to high-frequency electrical
Magnetic wave carrier wave is transmitted in cable, and signal emission module 10 is installed in cable, and signal emission module 10 is set on cable
At signal transmitting.Signal emission module 10 include baseband transmission unit 11, base-band spread-spectrum unit 12, electromagnetic wave generate unit 13 and
Electromagnetic wave modulation unit 14, baseband transmission unit 11, base-band spread-spectrum unit 12 and electromagnetic wave modulation unit 14 are sequentially connected, electromagnetism
Wave generates unit 13 and connect with electromagnetic wave modulation unit 14.Specifically, baseband transmission unit 11 is used to transmit the transmitting of data
Signal generates baseband signal, and base-band spread-spectrum unit 12 is produced for generating spread-spectrum signal, electromagnetic wave after being spread baseband signal
Raw unit 13 is for generating electromagnetic wave carrier used in cable transmission, and electromagnetic wave modulation unit 14 is for modulating spread-spectrum signal
Transmission signal is formed on electromagnetic wave carrier into cable to be transmitted.
Furthermore the transmission signal after the signal receiving module 20 of the present embodiment is used to be transmitted demodulates and de-spreads production
The reception signal of data is transmitted, signal receiving module 20 is installed in cable, and signal receiving module 20 is set to signal on cable and connects
At receipts.Signal receiving module 20 includes electromagnetic wave demodulating unit 21, base band despread unit 22 and Baseband-Receive unit 23, electromagnetic wave
Demodulating unit 21, base band despread unit 22 and Baseband-Receive unit 23 are sequentially connected, and electromagnetic wave generates unit 13 and solution electromagnetic
Unit 21 is adjusted to connect.Specifically, electromagnetic wave demodulating unit 21 is raw after being used to be demodulated the electromagnetic wave carrier transmitted on signal
At demodulated signal, for generating baseband signal after de-spreading demodulated signal, Baseband-Receive unit 23 is used for base band despread unit 22
Baseband signal is generated to the reception signal of transmission data.
Compared with prior art, the invention has the following beneficial effects: the present invention is passed by high-frequency electromagnetic wave carrier signal
Defeated information can carry biggish information content；The transmitting signal of transmission information is spread, using much larger than information bandwidth itself
Bandwidth for transmission information, can be greatly improved information transmission anti-interference ability and noise resisting ability, to extend information
Conveying length in cable；By despreading the transmission information of original bandwidth can be received in information receiving area.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of information transferring method for improving conveying length in cable, which is characterized in that the described method includes:
Step S1, it by the transmitting signal spread-spectrum for transmitting information and is modulated to high-frequency electromagnetic wave carrier signal in the cable and passes
It is defeated；
Step S2, the transmission signal after being transmitted demodulates the electromagnetic wave carrier and de-spreads the reception letter for generating transmission information
Number.
2. the information transferring method according to claim 1 for improving conveying length in cable, which is characterized in that step S1 tool
Body includes:
Step S11, the transmitting signal for transmitting data is generated into baseband signal；
Step S12, spread-spectrum signal is generated after being spread the baseband signal；
Step S13, high-frequency electromagnetic wave carrier signal used in cable transmission is generated, the spread-spectrum signal is modulated to electromagnetic wave carrier
Upper formation transmission signal is transmitted in cable.
3. the information transferring method according to claim 2 for improving conveying length in cable, which is characterized in that step S2 tool
Body includes:
Step S21, demodulated signal is generated after being demodulated the electromagnetic wave carrier transmitted on signal；
Step S22, the baseband signal will be generated after demodulated signal despreading；
Step S23, the baseband signal is generated to the reception signal of transmission data.
4. a kind of information transmission system for improving conveying length in cable, which is characterized in that the system comprises signals to emit mould
Block and signal receiving module；
Signal emission module, for will transmit the transmitting signal spread-spectrum of data and be modulated to high-frequency electromagnetic wave carrier signal in the cable
In transmitted；
Signal receiving module demodulates for the transmission signal after being transmitted and de-spreads the reception signal of production transmission data.
5. the information transmission system according to claim 4 for improving conveying length in cable, which is characterized in that the signal
Transmitting module and the signal receiving module are mounted in the cable, and the signal emission module, which is set on the cable, to be believed
At number transmitting, the signal receiving module is set to signal receiving area on the cable.
6. the information transmission system according to claim 4 for improving conveying length in cable, which is characterized in that the signal
Transmitting module specifically includes:
Baseband transmission unit, the transmitting signal for that will transmit data generate baseband signal；Base-band spread-spectrum unit, being used for will be described
Baseband signal generates spread-spectrum signal after being spread；Electromagnetic wave generates unit, for generating electromagnetic wave used in cable transmission
Carrier wave；And electromagnetic wave modulation unit, transmission letter is formed for the spread-spectrum signal to be modulated on the electromagnetic wave carrier in cable
It number is transmitted；
The baseband transmission unit, the base-band spread-spectrum unit, electromagnetic wave generate unit and electromagnetic wave modulation unit is sequentially connected,
The electromagnetic wave generates unit and connect with the electromagnetic wave modulation unit.
7. the information transmission system according to claim 6 for improving conveying length in cable, which is characterized in that the signal
Receiving module specifically includes:
Electromagnetic wave demodulating unit, for generating demodulated signal after being demodulated the electromagnetic wave carrier transmitted on signal；Base band solution
Expand unit, for the baseband signal will to be generated after demodulated signal despreading；And Baseband-Receive unit, it is used for the base band
Signal generates the reception signal of transmission data；
The electromagnetic wave demodulating unit, the base band despread unit and the Baseband-Receive unit are sequentially connected, the electromagnetic wave
Unit is generated to connect with the electromagnetic wave demodulating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811251251.1A CN109274400A (en) | 2018-10-25 | 2018-10-25 | The information transferring method and system of conveying length in a kind of raising cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811251251.1A CN109274400A (en) | 2018-10-25 | 2018-10-25 | The information transferring method and system of conveying length in a kind of raising cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109274400A true CN109274400A (en) | 2019-01-25 |
Family
ID=65194189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811251251.1A Pending CN109274400A (en) | 2018-10-25 | 2018-10-25 | The information transferring method and system of conveying length in a kind of raising cable |
Country Status (1)
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| CN (1) | CN109274400A (en) |
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| WO2004075433A1 (en) * | 2003-02-20 | 2004-09-02 | Hitachi, Ltd. | Power line carrier communication device and power line carrier communication method |
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| CN207251620U (en) * | 2017-08-31 | 2018-04-17 | 四川理工学院 | A kind of remote spread spectrum data transmission system based on tropospheric scatter |
| CN208986934U (en) * | 2018-10-25 | 2019-06-14 | 东莞市慧眼数字技术有限公司 | The information transmission system of conveying length in a kind of raising cable |
-
2018
- 2018-10-25 CN CN201811251251.1A patent/CN109274400A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH114427A (en) * | 1997-06-11 | 1999-01-06 | Showa Electric Wire & Cable Co Ltd | Catv equipment |
| US20020106996A1 (en) * | 2001-01-30 | 2002-08-08 | Jens-Peer Stengl | Method and device for transferring a signal from a signal source to a signal sink in a system |
| WO2004075433A1 (en) * | 2003-02-20 | 2004-09-02 | Hitachi, Ltd. | Power line carrier communication device and power line carrier communication method |
| JP2008278169A (en) * | 2007-04-27 | 2008-11-13 | Hitachi Ltd | Radio communication system |
| CN101567745A (en) * | 2009-04-03 | 2009-10-28 | 湖南大学 | OFDM radio-on-fiber communication system for generating optical millimeter wave by suppressing modulation of optical carrier |
| CN102025398A (en) * | 2009-09-11 | 2011-04-20 | 中颖电子股份有限公司 | Wired carrier communication method and device |
| CN101719308A (en) * | 2009-11-06 | 2010-06-02 | 北京航空航天大学 | Method for realizing high anti-interference unmanned aerial vehicle remote control data link |
| CN101833110A (en) * | 2010-04-15 | 2010-09-15 | 山东科技大学 | Exploration method of geological information |
| CN205961115U (en) * | 2016-07-18 | 2017-02-15 | 南京方未智能科技有限公司 | System for utilize intermediate frequency coaxial cable transmission low frequency serial port signal |
| CN207251620U (en) * | 2017-08-31 | 2018-04-17 | 四川理工学院 | A kind of remote spread spectrum data transmission system based on tropospheric scatter |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Ke Inventor after: Xie Wen Inventor after: Zhang Shaodong Inventor before: Xie Wen |
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