CN110247680A - A kind of novel high-speed rail communication system based on power-line carrier communication - Google Patents
A kind of novel high-speed rail communication system based on power-line carrier communication Download PDFInfo
- Publication number
- CN110247680A CN110247680A CN201910485850.8A CN201910485850A CN110247680A CN 110247680 A CN110247680 A CN 110247680A CN 201910485850 A CN201910485850 A CN 201910485850A CN 110247680 A CN110247680 A CN 110247680A
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- Prior art keywords
- speed rail
- communication
- speed
- signal
- pantograph
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/544—Setting up communications; Call and signalling arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
Abstract
The present invention discloses a kind of novel high-speed rail communication system based on power-line carrier communication, the various mobile terminals carried including several ground base stations being arranged along the line, the pantograph-contact net system being set to above high-speed rail train and high-speed rail passenger；Adjacent ground base station is connected by cable to be communicated, ground base station is connected directly by the power line of cable and high-speed railway touching net, the power line of high-speed railway touching net is connected with the pantograph overlap joint at the top of high-speed rail train, pantograph is connected with visible light communication equipment, it is seen that optical communication equipment is connected with the various mobile terminals wireless communication that high-speed rail passenger carries.Compared with the prior art, technical solution of the present invention has many advantages, such as that cost is relatively low, transmission is reliable and fast speed, it can provide reasonable high-speed rail mobile communication system, to realize safe and reliable communication quality, provide quick, good mobile communication service and experience for vast high-speed rail user.
Description
Technical field
The present invention relates to the high-speed rail communications field, in particular to a kind of novel high Tie Tong based on power-line carrier communication
Letter system.
Background technique
High-speed railway is the common rapid transit growth requirement of development trend and various countries of world's railway.Due to China
Railway walks the road for development of autonomous scientific and technical innovation, and by successful implementation, " import of advanced technology does the design and production together, makes China
Brand " strategy, in short time more than ten years, Chinese high-speed rail causes world wide attention to leader from scratch, from chasing after runner, walks out
One high-speed rail development with Chinese characteristics." high-speed rail " was once a high and new technology noun, and nowadays it has become
The preferred traffic tool of common people's commercial affairs and tourism trip.It is most complete to have become high-speed railways technical system in the world for China at present
Whole, integration capability is most strong, operating mileage longest, speed of service highest, the maximum country of building scale.
As the construction of Chinese high-speed rail and the fast development of high-speed rail core technology, the speed of service of Chinese high-speed rail are constantly promoted,
And as the high-speed rail speed of service is promoted, high-speed rail passenger is logical to the network coverage, network environment safety and the network in high-iron carriage
Talking about quality etc., more stringent requirements are proposed.Since current worldwide high-speed rail wireless mobile communications are horizontal and public network
Mobile communication level is compared to there is also larger gaps, and especially the network coverage of high-speed rail train is faced with ten under high-speed mobile scene
Point severe challenge, industry generally believe known to three big technological difficulties existing for high-speed rail wireless mobile communications, first, high-speed rail train
Car body signal penetration loss is big, Doppler frequency shift, mobile terminal switching time are extremely short.Chinese high-speed rail train is using totally-enclosed
The body construction of formula, wireless signal are lost larger during penetrating car body.Especially in the promotion with speed, penetration loss
It can become larger therewith, cause the network problems such as terminal handover success rate is low, wireless signal covering is weak in high-iron carriage；Second, in height
Under fast mobile context, with the continuous promotion of high-speed rail train speed, doppler shift effect is further obvious, will cause wireless signal
A series of problems, such as offset, network insertion difficulty, the raising of data transmission error rate, handover success rate reduce；Third is moved in high speed
Under dynamic scene, the time that mobile terminal passes through cell is less than the mobile terminal handoff response time, and it is not yet complete to will cause mobile terminal
At overlapping region is just had already passed through before switching, so as to cause network problems such as off-grid call drop, cell handover failures, influence user's
Service-aware.
For the above-mentioned three big technological difficulties that current high-speed rail wireless mobile communications are faced, state-owned railroads department, Ge great Yi
Dynamic common carrier, major University Scientific Research mechanism etc. have all successively put into a large amount of technologies, personnel and financial resources research and have improved high speed
Under mobile context in high-speed rail compartment wireless network covering and performance issue, and propose many high-speed rail communication system solution party
Case, such as long term evolution (Long Time Evolution Advanced, LTE) communication plan, wherein LTE communication scheme provides
One High Data Rate, big bandwidth, low delay, the availability of frequency spectrum high mobile radio system, and use orthogonal frequency
A variety of advanced technologies such as multiplexing technology, MIMO technology can provide the nothing greater than 100kbps for the high-speed rail passenger of speed per hour 350Km/h
Line communication access service.But under high-speed mobile scene, LTE network is still faced with high-speed rail train body letter in high-iron carriage
The general issues such as number penetration loss is big, Doppler frequency shift, mobile terminal switching time are extremely short, additionally need to solve cell switching
With the problems such as gravity treatment is frequent, call voice falls after rise or redirects.
Therefore, a reasonable high-speed rail mobile communication system how is designed, under high-speed mobile scene to realize that safety can
The communication quality leaned on provides quick, good mobile communication service and experience for vast high-speed rail user, is that there is an urgent need to solve at present
Certainly the technical issues of.
Summary of the invention
The main object of the present invention be propose it is a kind of cost is relatively low, transmission is reliable and fast speed based on power line carrier
The novel high-speed rail communication system of the communication technology, it is desirable to provide reasonable high-speed rail mobile communication system, to realize safe and reliable lead to
Believe quality, provides quick, good mobile communication service and experience for vast high-speed rail user.
To achieve the above object, a kind of novel high-speed rail communication system based on power-line carrier communication proposed by the present invention
System, including several ground base stations being arranged along the line, the pantograph-contact net system and the high-speed rail that are set to above high-speed rail train
The various mobile terminals that passenger carries；Adjacent ground base station is connected by cable to be communicated, and ground base station passes through cable and high-speed iron
The power line of road contact net is connected directly, and the power line of high-speed railway touching net overlaps phase with the pantograph at the top of high-speed rail train
Even, pantograph is connected with visible light communication equipment, it is seen that optical communication equipment and the various mobile terminals that high-speed rail passenger carries are wireless
Communication is connected.
Preferably, the pantograph-contact net system includes the high-speed railway touching net using electric power carrier communication technology
And several pantographs using electric power carrier communication technology.
Preferably, the visible light communication equipment issues visible light in interior and carries with the high-speed rail passenger each
Kind mobile terminal connection communication.
Preferably, the visible light communication equipment includes being connected VLC communication equipment and to communicate with VLC with the pantograph
The illuminating LED lamp that equipment is connected.
Preferably, the visible light communication equipment can be substituted by the WiFi communication equipment or wire communication facility of broad sense,
WiFi communication equipment is connected by wireless communication with the various mobile terminals that high-speed rail passenger carries, and wire communication facility multiplies with high-speed rail
The various mobile terminals that visitor carries are connected by wire communication.Since high-speed rail passenger's most of the time is all seated on the seat,
Wired communication mode can be used directly to be attached.
Preferably, the high-speed rail train, which includes at least, has 8N to save compartment, and N is positive integer.
Preferably, the signal of communication of the ground base station is transmitted through the communications cable, and signal of communication reaches ground base station signal
Transmitting terminal and being modulated is coupled with route, then is superimposed upon the power line of the high-speed railway touching net and is transmitted to and be located at
Modulated signal is filtered out from power line after coupled and filtering, then passed through by the ground base station signal receiving end at the top of high-speed rail train
Demodulation restoring data signal；After high-speed rail train signal is transferred to the high-speed rail train signal transmitting terminal at the top of high-speed rail train,
The coupling of modulated and route, the power line transmission being finally superimposed upon in pantograph pass through the height of power line transmission to ground base station
Iron train signal receiving end, coupled and filtering filter out modulated signal from power line, demodulated and restoring data signal,
Data-signal after reduction is transferred back into ground base station by the communications cable.
Technical solution of the present invention has the advantage that compared with the prior art
Technical solution of the present invention will be transmitted Signal averaging using power-line carrier communication and be transmitted in power line, because
This does not need to be laid with dedicated communication line, directly can carry out signal transmission using pantograph-contact net system power line, in this way
Material cost and labour cost are not only saved, the communication requirement of high quality can also be realized, in addition by traditional radio communication mold
Formula becomes wired communication modes, can effectively avoid in high-speed rail wireless communications mode due to doppler shift effect, high-speed rail train vehicle
Body loss is big, mobile terminal switching time is extremely short and makes that high-iron carriage internal signal is of poor quality, networking speed is slow, speech quality
The technical problem of difference realizes that the high-iron carriage internal signal quality under high-speed mobile scene is strong, networking speed is fast, speech quality
Height provides mobile communication service and the experience of high quality for the high-speed rail passenger under high-speed mobile scene, to meet high-speed rail passenger day
The demand and QoS requirement for the message transmission rate that benefit increases.
At the same time, logical using the WiFi of visible light communication technology or broad sense inside the high-iron carriage of technical solution of the present invention
Believe equipment or wire communication facility covering, avoids directly linking for single mobile terminal and ground base station, can effectively solve cell
Switching and the frequent problem of gravity treatment.By using the illumination LED inside high-iron carriage as signal optical source, electromagnetic-radiation-free is avoided
And electromagnetic interference, and there are the advantages such as environmentally protective and energy-saving and emission-reduction.It in addition will not as the carrier of signal using visible light
Discomfort is caused to high-speed rail passenger's body, furthermore the sum of general power of LED light source for illuminating inside used high-iron carriage is reachable
Tens of watts or more, ensureing the signal power that communication uses and the potentiality with high-speed communication, frequency spectrum can be used without authorization,
Effectively solve the problems, such as existing radio frequency spectrum resource scarcity, it is only necessary to VLC be installed on the basis of existing high-speed rail illumination LED device
Good communication can be realized in equipment, and system building is simple and at low cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is that the present invention is based on the structural schematic diagrams of the novel high-speed rail communication system of electric power carrier communication technology.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of novel high-speed rail communication system based on power-line carrier communication.
Referring to Figure 1, the novel high-speed rail communication system based on power-line carrier communication of the embodiment of the present invention includes
Multiple ground base stations for being arranged along the line, the pantograph-contact net system being set to above high-speed rail train and high-speed rail passenger carry
Various mobile terminals.Wherein it is connected between adjacent ground base station by cable and is communicated, ground base station passes through cable and high-speed iron
The power line of road contact net is connected directly, and the power line of high-speed railway touching net overlaps phase with the pantograph at the top of high-speed rail train
Even, pantograph is connected with visible light communication equipment, it is seen that optical communication equipment and the various mobile terminals that high-speed rail passenger carries are wireless
Communication is connected.Visible light communication equipment positioned at high-speed rail roof of train portion can be set by the WiFi communication equipment of broad sense or wire communication
Standby substitution, WiFi communication equipment are connected by wireless communication with the various mobile terminals that high-speed rail passenger carries, wire communication facility
The various mobile terminals carried with high-speed rail passenger are connected by wire communication.Due to high-speed rail, passenger is sitting in seat the most of the time
On, therefore wired communication mode can be used directly and be attached.
Specifically, the present embodiment pantograph and high-speed railway touching net include the high-speed iron using electric power carrier communication technology
Road contact net and the multiple pantographs for using electric power carrier communication technology, pantograph is by cable and is set to high-speed rail train vehicle
The intracorporal visible light communication equipment connection in compartment compartment, it is seen that the various shiftings that optical communication equipment issues visible light and carries with high-speed rail passenger
Dynamic terminal is connected, in other embodiments of the invention, the various mobile terminals of WiFi communication equipment and high-speed rail passenger carrying
It is connected by wireless communication, wire communication facility is connected with the various mobile terminals that high-speed rail passenger carries by wire communication.It is excellent
Selection of land, the present embodiment visible light communication equipment include the VLC communication equipment being connected with pantograph and are connected with VLC communication equipment
The illuminating LED lamp connect, is covered using visible light communication technology, all kinds of mobile whole entrained by high-speed rail passenger so as to meet
The broadband services demand at end.
When the novel high-speed rail communication system based on power-line carrier communication of the embodiment of the present invention is worked, ground
The signal of communication of base station is transmitted through the communications cable, and signal of communication reaches ground base station signal sending end and is modulated and route coupling
It closes, then the ground base station signal reception for being superimposed upon the power line of high-speed railway touching net and being transmitted at the top of high-speed rail train
End filters out modulated signal after coupled and filtering from power line, then demodulated and restoring data signal；High-speed rail train signal
After being transferred to the high-speed rail train signal transmitting terminal being located at the top of high-speed rail train, the coupling of modulated and route is finally superimposed upon by electricity
Power line transmission in bow, by the high-speed rail train signal receiving end of power line transmission to ground base station, coupled and filtering will
Modulated signal is filtered out from power line, and the data-signal after reduction is passed through the communications cable by demodulated and restoring data signal
Transfer back to ground base station.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the design of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/it is used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (7)
1. a kind of novel high-speed rail communication system based on power-line carrier communication, which is characterized in that including what is be arranged along the line
The various shiftings that several ground base stations, the pantograph-contact net system being set to above high-speed rail train and high-speed rail passenger carry
Dynamic terminal；Adjacent ground base station is connected by cable to be communicated, and ground base station passes through the power line of cable and high-speed railway touching net
It is connected directly, the power line of high-speed railway touching net is connected with the pantograph overlap joint at the top of high-speed rail train, pantograph and visible light
Communication equipment is connected, it is seen that optical communication equipment is connected with the various mobile terminals wireless communication that high-speed rail passenger carries.
2. novel high-speed rail communication system as described in claim 1, which is characterized in that the pantograph-contact net system includes
High-speed railway touching net using electric power carrier communication technology and several pantographs using electric power carrier communication technology.
3. novel high-speed rail communication system as claimed in claim 2, which is characterized in that the visible light communication equipment is in compartment
The various mobile terminal connection communications that portion issues visible light and carries with the high-speed rail passenger.
4. novel high-speed rail communication system as claimed in claim 3, which is characterized in that the visible light communication equipment includes and institute
The illuminating LED lamp stating the connected VLC communication equipment of pantograph and being connected with VLC communication equipment.
5. novel high-speed rail communication system as claimed in claim 3, which is characterized in that the visible light communication equipment can be by broad sense
WiFi communication equipment or wire communication facility substitution, WiFi communication equipment passes through with the various mobile terminals that high-speed rail passenger carries
Wireless communication is connected, and wire communication facility is connected with the various mobile terminals that high-speed rail passenger carries by wire communication.
6. novel high-speed rail communication system as described in claim 1, which is characterized in that the high-speed rail train, which includes at least, 8N section
Compartment, N are positive integer.
7. novel high-speed rail communication system as claimed in claim 4, which is characterized in that the signal of communication of the ground base station is through logical
Believe cable transmission, signal of communication reaches ground base station signal sending end and is modulated and couples with route, then is superimposed upon the height
The power line of fast railway contact line and the ground base station signal receiving end being transmitted at the top of high-speed rail train, it is coupled and
Modulated signal is filtered out from power line after filtering, then demodulated and restoring data signal；High-speed rail train signal, which is transferred to, to be located at
After high-speed rail train signal transmitting terminal at the top of high-speed rail train, the coupling of modulated and route, the electric power being finally superimposed upon in pantograph
Line transmission, by the high-speed rail train signal receiving end of power line transmission to ground base station, it is coupled and filter by modulated signal from
It is filtered out on power line, the data-signal after reduction is transferred back to ground by the communications cable by demodulated and restoring data signal
Base station.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485850.8A CN110247680A (en) | 2019-06-05 | 2019-06-05 | A kind of novel high-speed rail communication system based on power-line carrier communication |
| LU101369A LU101369B1 (en) | 2019-06-05 | 2019-08-28 | New high-speed railway communication system based on a power line carrier communication technology |
| RU2019130029A RU2776672C2 (en) | 2019-06-05 | 2019-09-25 | Communication system for high-speed railways based on technology of power line communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485850.8A CN110247680A (en) | 2019-06-05 | 2019-06-05 | A kind of novel high-speed rail communication system based on power-line carrier communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110247680A true CN110247680A (en) | 2019-09-17 |
Family
ID=67886112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910485850.8A Pending CN110247680A (en) | 2019-06-05 | 2019-06-05 | A kind of novel high-speed rail communication system based on power-line carrier communication |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110247680A (en) |
| LU (1) | LU101369B1 (en) |
Cited By (3)
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| CN110834653A (en) * | 2019-10-15 | 2020-02-25 | 上海新海信通信息技术有限公司 | Urban rail transit steel rail broken rail monitoring system and method |
| CN111355516A (en) * | 2020-03-23 | 2020-06-30 | 深圳市大拿科技有限公司 | Short-distance communication method and system for rail transit transport vehicle |
| CN117579406A (en) * | 2024-01-15 | 2024-02-20 | 中铁一局集团电务工程有限公司 | Trolley bus, communication method and system |
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- 2019-08-28 LU LU101369A patent/LU101369B1/en active IP Right Grant
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| CN110834653A (en) * | 2019-10-15 | 2020-02-25 | 上海新海信通信息技术有限公司 | Urban rail transit steel rail broken rail monitoring system and method |
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| CN111355516A (en) * | 2020-03-23 | 2020-06-30 | 深圳市大拿科技有限公司 | Short-distance communication method and system for rail transit transport vehicle |
| CN117579406A (en) * | 2024-01-15 | 2024-02-20 | 中铁一局集团电务工程有限公司 | Trolley bus, communication method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| LU101369B1 (en) | 2020-01-07 |
| RU2019130029A (en) | 2021-03-25 |
| RU2019130029A3 (en) | 2022-01-21 |
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Application publication date: 20190917 |