CN109068296A - A kind of vehicle ground high speed radio transmission grid topology - Google Patents
A kind of vehicle ground high speed radio transmission grid topology Download PDFInfo
- Publication number
- CN109068296A CN109068296A CN201810708416.7A CN201810708416A CN109068296A CN 109068296 A CN109068296 A CN 109068296A CN 201810708416 A CN201810708416 A CN 201810708416A CN 109068296 A CN109068296 A CN 109068296A
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- Prior art keywords
- vehicle
- network
- wireless
- ground
- high speed
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Classifications
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- 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]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Abstract
A kind of the invention discloses vehicle high speed radio transmission grid topology, including data center, ground network, terrestrial wireless access points AP, radio antenna interface ANT, wireless client WiClient, vehicle Ethernet ECN, wireless network Transmission system and onboard wireless client, it is characterized by: the wireless network Transmission system is the channel for constructing vehicle network and being connected to ground network, the operation information of vehicle arrangement in vehicle network can be transmitted to ground data center, wireless interaction between the vehicle network and ground network, the present invention relates to building rolling stock section's high speed radio transmission systems.A kind of vehicle ground high speed radio transmission grid topology, the limitation that 802.11ac transmission range is close, coverage area is small can effectively be avoided, signal interference between avoiding simultaneously wirelessly, the problems such as capableing of the MIMO effect of each in-vehicle wireless device of performance of maximum performance, also avoiding the contention of wireless channel in libraries section.
Description
Technical field
The present invention relates to building rolling stock section's high speed radio transmission system, specially a kind of vehicle ground high speed radio transmission system networks
Network topology.
Background technique
Wireless network Transmission system is mainly used for constructing the channel that is connected to ground network of vehicle network, so as to by vehicle
The operation information of vehicle arrangement is transmitted to ground data center in network.For the non real-time status information one of the operation of vehicle
As by the way that after vehicle Hui Ku, after safeguarding radio network coverage area domain into rolling stock section, vehicle automatically accesses rolling stock section's maintenance wireless network
Network is initiated data and is uploaded.To respond national anti-terrorism demand, public security department is for public friendships in cities such as subway, light rail, tramcars
Way system, it is desirable that install Vehicular video monitoring information storage system additional.The system is mainly used for department of public security organ anti-terrorism video prison
Memory requirement is controlled, while being shown for Vehicular video and corresponding Video stream information is provided.Vehicular video monitoring system has data volume
Greatly, the features such as mobility is strong, information is relatively isolated.Existing vehicle maintenance wireless network generally uses 802.11a/b/g/n technology,
The topological structure of all standing in rolling stock section is realized using wireless network, scheme advantage is to be able to achieve biggish wireless coverage,
Ground AP can be reduced to the greatest extent layout quantity, suitable for the application scenarios of low bandwidth needs, but be answered for big bandwidth, big flow
With scene, existing scheme is simultaneously not suitable for.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of vehicle high speed radio transmission grid is topological, solves existing
There is wireless network to realize the topological structure of all standing in rolling stock section, when for the application scenarios of big bandwidth, big flow and be not suitable for,
To using the problem of making troubles.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of vehicle ground high speed radio transmission system network
Network topology, including data center, ground network, terrestrial wireless access points AP, radio antenna interface ANT, wireless client
WiClient, vehicle Ethernet ECN, wireless network Transmission system and onboard wireless client, it is characterised in that: the vehicle
Ground wireless network transmission system is the channel for constructing vehicle network and being connected to ground network, can be by vehicle arrangement in vehicle network
Operation information be transmitted to ground data center, interacted between the ground network and data center, terrestrial wireless access
Access point AP, wireless client WiClient and onboard wireless client are mounted on MIMO directional aerial, the car-ground radio
Network transmission system uses IEEE802.11ac technology, applies the technologies such as 3T3R-MIMO.
Preferably, the IEEE802.11ac is a 802.11 wireless LAN communication standards, by 5GHz frequency band into
Row communication, using its effective transmission speed of 3T3R-MIMO technology in 300Mbps between 400Mbps.
Preferably, the wireless network Transmission system uses IEEE802.11ac standard, mobile communications network packet
Contained the 4G mobile communications network including FDD-LTE and contain the 3G mobile communications network including WCDMA and contain GSM,
2G mobile communications network including GPRS.
Preferably, the vehicle high speed radio transmission single wireless client WiClient and ground peak value theory pass
Defeated bandwidth is 1.3Gb/s, surveys average bandwidth up to 500Mb/s.
Preferably, the ground network does not do full libraries section wireless coverage, and only oriented cover, which stops, specifies region.
Preferably, the terrestrial wireless access points AP beam communication in the onboard wireless client and respective carter.
Preferably, nothing is carried out by vehicle Ethernet ECN between the wireless client WiClient in the respective carter
Line interaction.
Preferably, interaction between the data center on the terrestrial wireless access points AP and respective carter.
Preferably, the 3T3R-MIMO technology is in terrestrial wireless access points AP and onboard wireless client
The transmitting terminal of WiClient and receiving end use multiple MIMO directional aerials respectively, and signal is made to pass through the transmitting of MIMO directional aerial
End and receiving end carry out the transmission and reception of signal, realize multiple-input multiple-output by multiple MIMO directional aerials.
Preferably, the terrestrial wireless access points AP carries out fixed point arrangement according to stock rail and parking position.
(3) beneficial effect
A kind of the present invention provides vehicle high speed radio transmission grid topology.Have it is following the utility model has the advantages that
(1), a kind of vehicle ground high speed radio transmission grid topology, by using wireless network Transmission system
IEEE802.11ac technology, applies the technologies such as 3T3R-MIMO, and IEEE802.11ac is 802.11 wireless LAN communications
Standard is communicated by 5GHz frequency band, effective transmission rate in 300Mbps between 400Mbps, using the topological project energy
The theoretical peak transmission bandwidth on realizing vehicle very high speediness wireless transmission, single onboard wireless client and ground is 1.3Gb/s, real
Average bandwidth is surveyed up to 500Mb/s, improves nearly ten times than conventional wireless network bandwidth, at the same ground network do not do full libraries section without
Line covering, only oriented cover stops specified region, by by terrestrial wireless access points AP according to stock rail and parking stall
It sets and carries out fixed point arrangement, can effectively avoid the limitation that 802.11ac transmission range is close, coverage area is small.
(2), a kind of vehicle ground high speed radio transmission grid topology, by terrestrial wireless access points AP and vehicle
It carries wireless client WiClient and is mounted on MIMO directional aerial, make transmitting terminal and reception of the signal by MIMO directional aerial
End carry out signal transmission and reception, by multiple MIMO directional aerials realize multiple-input multiple-output, onboard wireless client with it is corresponding
Terrestrial wireless access points AP beam communication on track, the signal interference between effectively preventing wirelessly, being capable of maximum performance
Each in-vehicle wireless device of performance MIMO effect, while because of wirelessly covering between each track, each ground wireless access points AP
The problems such as lid does not overlap spatially, avoids the contention of wireless channel in libraries section.
Detailed description of the invention
Fig. 1 for vehicle of the present invention high speed radio transmission system network topology schematic diagram.
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 embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention provides a kind of technical solution: a kind of vehicle high speed radio transmission grid open up
It flutters, including data center, ground network, terrestrial wireless access points AP, radio antenna interface ANT, wireless client
WiClient, vehicle Ethernet ECN, wireless network Transmission system and onboard wireless client, wireless network transmission
System is the channel for constructing vehicle network and being connected to ground network, the operation information of vehicle arrangement in vehicle network can be transmitted
To ground data center, wireless interaction between ground network and data center, terrestrial wireless access points AP and onboard wireless
Client WiClient is mounted on MIMO directional aerial, and wireless network Transmission system uses IEEE802.11ac technology,
Apply the technologies such as 3T3R-MIMO.
IEEE802.11ac is a 802.11 wireless LAN communication standards, is communicated, is had by 5GHz frequency band
Transmission rate is imitated in 300Mbps between 400Mbps.
Wireless network Transmission system uses IEEE802.11ac standard, and mobile communications network contains FDD-LTE
It 4G mobile communications network inside and contains the 3G mobile communications network including WCDMA and contains the 2G including GSM, GPRS
Mobile communications network.
Vehicle the single wireless client WiClient of high speed radio transmission and the theoretical peak transmission bandwidth on ground be
1.3Gb/s surveys average bandwidth up to 500Mb/s.
Ground network does not do full libraries section wireless coverage, and only oriented cover, which stops, specifies region.Onboard wireless client
Terrestrial wireless access points AP beam communication on WiClient and respective carter.Wireless client in respective carter
It is interacted between WiClient and vehicular control unit by vehicle Ethernet ECN.Terrestrial wireless access points AP sum number
It is interacted according between center by ground network.3T3R-MIMO technology is in terrestrial wireless access points AP and vehicle-mounted nothing
The transmitting terminal of line client WiClient and receiving end use multiple MIMO directional aerials respectively, and signal is made to orient day by MIMO
The transmitting terminal of line and receiving end carry out the transmission and reception of signal, realize multiple-input multiple-output by multiple MIMO directional aerials.Ground
Wireless access points AP carries out fixed point arrangement according to stock rail and parking position.
In use, applying 3T3R- by the way that wireless network Transmission system is used IEEE802.11ac technology first
The technologies such as MIMO, IEEE802.11ac are a 802.11 wireless LAN communication standards, are communicated by 5GHz frequency band,
Effective transmission rate is in 300Mbps between 400Mbps, and using the topological project, very high speediness is wirelessly transferred with being able to achieve vehicle, individually
Onboard wireless client and the theoretical transmission bandwidth on ground are 1.3Gb/s, survey average bandwidth up to 500Mb/s, than traditional nothing
Line network bandwidth improves nearly ten times, while ground network does not do full libraries section wireless coverage, and only oriented cover, which stops, specifies region,
By the way that terrestrial wireless access points AP is carried out fixed point arrangement according to stock rail and parking position, can effectively avoid
The limitation that 802.11ac transmission range is close, coverage area is small, while by terrestrial wireless access points AP, wireless client
WiClient and onboard wireless client are mounted on MIMO directional aerial, make signal by the transmitting terminal of MIMO directional aerial and
Receiving end carry out signal transmission and reception, by multiple MIMO directional aerials realize multiple-input multiple-output, onboard wireless client with
Terrestrial wireless access points AP beam communication in respective carter, the signal interference between effectively preventing wirelessly can be maximum
The MIMO effect of each in-vehicle wireless device of performance of performance, while because of the nothing between each track, each ground wireless access points AP
The problems such as line covering does not overlap spatially, avoids the contention of wireless channel in libraries section.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element ".
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of vehicle ground high speed radio transmission grid topology, including data center, ground network, terrestrial wireless access access
Point AP, radio antenna interface ANT, wireless client WiClient, vehicle Ethernet ECN, wireless network Transmission system and
Onboard wireless client, it is characterised in that: the wireless network Transmission system is that building vehicle network and ground network connect
The operation information of vehicle arrangement in vehicle network, can be transmitted to ground data center by logical channel, the vehicle network with
Wireless interaction between ground network, the terrestrial wireless access points AP, wireless client WiClient and onboard wireless visitor
Family end is mounted on MIMO directional aerial, and the wireless network Transmission system uses IEEE802.11ac technology, applies
The technologies such as 3T3R-MIMO.
2. a kind of vehicle according to claim 1 ground high speed radio transmission grid topology, it is characterised in that: described
IEEE802.11ac is a 802.11 wireless LAN communication standards, is communicated by 5GHz frequency band, using 3T3R-MIMO
Its effective transmission speed of technology is in 300Mbps between 400Mbps.
3. a kind of vehicle according to claim 1 ground high speed radio transmission grid topology, it is characterised in that: the vehicle
Wireless network transmission system uses IEEE802.11ac standard, and mobile communications network contains the 4G movement including FDD-LTEZ
It communication network and contains the 3G mobile communications network including WCDMA and contains the 2G mobile radio communication including GSM, GPRS
Network.
4. a kind of vehicle according to claim 1 ground high speed radio transmission grid topology, it is characterised in that: the vehicle
The single wireless client WiClient of high speed radio transmission and the peak value theoretical transmission bandwidth on ground are 1.3Gb/s, and actual measurement is flat
Equal effective bandwidth is up to 500Mb/s.
5. a kind of vehicle according to claim 1 ground high speed radio transmission grid topology, it is characterised in that: the ground
Network does not do full libraries section wireless coverage, and only oriented cover vehicle parking track specifies region.
6. a kind of vehicle according to claim 1 ground high speed radio transmission grid topology, it is characterised in that: described vehicle-mounted
Terrestrial wireless access points AP beam communication on wireless client and respective carter.
7. a kind of vehicle according to claim 1 ground high speed radio transmission grid topology, it is characterised in that: the correspondence
It wireless client WiClient on track and is interacted between vehicular control unit by vehicle Ethernet ECN.
8. a kind of vehicle according to claim 1 ground high speed radio transmission grid topology, it is characterised in that: the ground
Pass through ground network interaction between data center on wireless access points AP and respective carter.
9. a kind of vehicle according to claim 1 ground high speed radio transmission grid topology, it is characterised in that: described
3T3R-MIMO technology is the transmitting terminal and receiving end in terrestrial wireless access points AP and onboard wireless client WiClient
Multiple MIMO directional aerials are used respectively, and signal is made to carry out the transmission of signal by the transmitting terminal of MIMO directional aerial and receiving end
And reception, multiple-input multiple-output is realized by multiple MIMO directional aerials.
10. a kind of vehicle according to claim 1 ground high speed radio transmission grid topology, it is characterised in that: describedly
Face wireless access points AP carries out fixed point arrangement according to stock rail and parking position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708416.7A CN109068296A (en) | 2018-07-02 | 2018-07-02 | A kind of vehicle ground high speed radio transmission grid topology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708416.7A CN109068296A (en) | 2018-07-02 | 2018-07-02 | A kind of vehicle ground high speed radio transmission grid topology |
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| Publication Number | Publication Date |
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| CN109068296A true CN109068296A (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810708416.7A Pending CN109068296A (en) | 2018-07-02 | 2018-07-02 | A kind of vehicle ground high speed radio transmission grid topology |
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Cited By (2)
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| CN110460979A (en) * | 2019-08-19 | 2019-11-15 | 北京德百利泰科技有限公司 | A kind of stacker-reclaimer wireless telecommunication system and method |
| CN110597048A (en) * | 2019-09-27 | 2019-12-20 | 中国铁路南宁局集团有限公司南宁机务段 | Zero-distance wireless reconnection system for locomotive |
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| CN105682107A (en) * | 2015-06-29 | 2016-06-15 | 南方银谷科技有限公司 | Train compartment WIFI (Wireless Fidelity) coverage network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20181221 |
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