CN103442380B - A kind of method and system of intelligent transportation link selection - Google Patents
A kind of method and system of intelligent transportation link selection Download PDFInfo
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- CN103442380B CN103442380B CN201310382474.2A CN201310382474A CN103442380B CN 103442380 B CN103442380 B CN 103442380B CN 201310382474 A CN201310382474 A CN 201310382474A CN 103442380 B CN103442380 B CN 103442380B
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Abstract
The present invention relates to communication technical field, the invention discloses the system of a kind of intelligent transportation link selection, it specifically includes network transmission module and intelligent transportation link selection system, described network transmission module is for the data interaction of user terminal with network-side, described intelligent transportation link selection system includes that transmission link detection module and transmission link select module, and described transmission link detection module is for detecting the situation of each transmission link；Described transmission link selection module is used for the data selecting suitable transmission link, user terminal or network-side and is transmitted by selected suitable transmission link.Select the link that in transmission link, signal is good or data to be transmitted bag is few to carry out data transmission, improve stability and the reliability of data transmission.
Description
Technical field
The present invention relates to Cellular Networks and WLAN communication technical field, a kind of method particularly relating to intelligent transportation link selection
And system.
Background technology
Mobile router is to be further added by wireless transport module such as outside the Wi-Fi AM access module of former wireless router
LTE module (Long Term Evolution, Long Term Evolution), user accesses mobile router by Wi-Fi AM access module, moves
User data is converted to LTE signal data by the LTE module of dynamic router, and by the cellular network WCDMA of operator,
Carrying out wireless data transmission between CDMA2000, TD-SCDMA etc. and base station, base station again and carries out wire transmission between network.Move
Dynamic router has Wi-Fi function and is capable of shared verification, as long as mobile phone, computer etc. just can access shifting with Wi-Fi function
Dynamic router, mobile router accesses Internet, mobile router by the wireless transport module such as LTE module of himself
Appearance bring great convenience to user.Such mobile Wi-Fi technology be particluarly suitable for bus, train, high ferro,
Use in the mobile devices such as ferrum.
But, owing to the physical location of bus, train, high ferro, subway etc. can quickly move, cause in cellular network
Significantly changing can often occur in signal, and cellular transmission link is the most unstable, situation off and on easily occurs.Work as honeycomb
When transmission link interrupts, user will be unable to access destination service by transmission link, thus causes service disruption, and Consumer's Experience is relatively
Difference.Such as on bus, N number of user accesses Internet by a mobile router, when its LTE transmission link down
Time, the Internet service disruption of all users under this mobile router will be caused.And it is disconnected when continuing occurs in LTE transmission link
Time when continuing state, user Internet service will be caused the most unusable.
Summary of the invention
It is an object of the invention to interrupt causing the skill of all user's service disruption in prior art transmission link
Art problem, it is provided that a kind of method of intelligent transportation link selection, in selection transmission link, signal is good or data to be transmitted bag is few
Link carry out data transmission, improve data transmission stability and reliability.The invention also discloses and realize this intelligence
The system that transmission link selects.
The purpose of the present invention is realized by following technical proposals:
A kind of system of intelligent transportation link selection, it specifically includes network transmission module and transmission link selects system,
Described network transmission module is for the data interaction of user terminal with network-side, and described transmission link selects system to include chain
Road detection module and transmission link select module, and described transmission link detection module is for detecting the situation of each transmission link；
Described transmission link selects module to be used for selecting the data of suitable transmission link, user terminal or network-side by selected
Suitably transmission link is transmitted.The data of user terminal or network-side are all carried out by selected suitable transmission link
Transmission, has ensured stablizing of system.
Further, above-mentioned network transmission module includes first network transport module and the second network transmission module, institute
Stating transmission link selects system to be connected with each network transmission module signal respectively, each second network transmission module and network-side
Between be a transmission link；Described first network transport module is for receiving the access information of user terminal, by user terminal
Data be sent to transmission link and select system, and transmission link selects the data of network-side that system receives be sent to user
Terminal；Described second network transmission module is used for by selected transmission link, the data of user terminal are transferred to network-side,
And the data of the network-side of reception are transferred to transmission link selection system；After transmission link selects system to select transmission link,
The data of user terminal are sent to the second network transmission module on the transmission link selected；Second network transmission module will be used
The data of family terminal are transferred to network-side by selected transmission link.With two network transmission modules, one for user eventually
End and transmission link select the data interaction of system, a data interaction selecting system for network-side and transmission link, divide
Opening and realize its single function, two network transmission modules can identical can also differ
Further, above-mentioned first network transport module is Wi-Fi module, cellular module or wire transmission module.
Wi-Fi module launches Wi-Fi signal, and user terminal accesses Wi-Fi module by the way of wireless Wi-Fi.User terminal also may be used
Cellular module is accessed to realize the access of user terminal in the way of using 3G radio communication.Additionally user terminal such as computer can
To access its wire transmission module by netting twine.
Further, above-mentioned second network transmission module is Wi-Fi module, cellular module or wire transmission module.
Wi-Fi module launches Wi-Fi signal, by Wi-Fi signal, the data of user terminal can be sent to network-side.Similarly,
Network-side can be sent to by the base station etc. of cellular module in the way of using 3G radio communication.Additionally user terminal is the most electric
Brain can transfer data to network-side by netting twine.
Further, above-mentioned suitable transmission link is one or is more than one.Generally, one suitably
Transmission link, more when the transmission link free time or many in order to select when more fully ensureing system stable
Individual transmission link transmits identical data simultaneously.
Further, above-mentioned transmission link selects system also to include message judge module, when selecting two or two
Above during suitable transmission link, start message judge module, abandon other messages beyond first message of identical message,
And first message received is sent to destination address.Two or more suitable transmission links transmit same report
Wen Shi, upon receipt by identical packet loss, it is to avoid repeats to receive.
Further, above-mentioned suitable transmission link can be the chain that signal intensity is more than signal strength threshold
Road, data to be transmitted amount are less than the transmission link of data-quantity threshold or unobstructed transmission link.The suitably choosing of transmission link
Determining mode can set the most flexibly, the selection of threshold value selects also according to different application.
Further, said system includes that two transmission links select system, and one for selecting user terminal
Data are sent to the first transmission link of network-side, and one for selecting to be sent to the data of network-side the second of user terminal
Transmission link.Two transmission links select system, first transmission link selecting family terminal to network end, and one selects net
Network end uses two different transmission links to select system to the second transmission link of user terminal, the transmission link coming and going data
Select respectively, be suitable for transmission link be exceedingly fast change situation in.
Further, above-mentioned transmission link detection module is timing detection or the feelings of each transmission link of detection trigger
Condition.Update transmission link table after timing detection, it is adaptable to the situation that transmission link change is very fast or data transmission is more, trigger
Detection is applicable to transmission link change, and relatively slowly or data transmit less situation.Different situations selects different detection sides
Formula, further increases the efficiency of system.
A kind of method that the invention also discloses intelligent transportation link selection, it specifically includes below step: user is eventually
End initiates request, accesses the network transmission module of its correspondence, and the data of user terminal are sent to by corresponding network transmission module
Transmission link selects system, and transmission link selects system to select one or more chain according to the situation of each transmission link
Road, transmission link selects the network transmission module on the transmission link that the data of user terminal are sent to select by system, passes through
The data of user terminal are sent to network-side by selected transmission link.Pass through said method, it is achieved that intelligent transportation link
Select, select suitable transmission link transmission data according to the situation of each transmission link.
Crossing and use above technical scheme, the present invention exists and provides the benefit that: set transmission link resource, when part passes
When transmission link situation is poor, by link selection system, reduces the traffic load of this link, data message is transferred to situation relatively
On good transmission link, equalize link load, effectively reduce owing to unicast link circuit condition declines the impact on network.
Accompanying drawing explanation
Fig. 1 is the flow chart of the intelligent transportation link selecting method of the present invention.
Fig. 2 is to arrange two transmission links in high ferro to select the structure chart of system.
Fig. 3 is the functional module framework figure that transmission link selects system.
Return link in Figure of description i.e. refers to the transmission link selected.
Detailed description of the invention
The detailed description of the invention of the present invention is described in detail below in conjunction with Figure of description.
The flow chart of the method for the intelligent transportation link selection of the present invention as shown in Figure 1.The invention discloses a kind of intelligence
Can the method that selects of transmission link, it specifically includes below step: a kind of method of intelligent transportation link selection, it specifically wraps
Include below step: step S101, after each Wi-Fi module receives the access information of user terminal, by the upper line number of user
System is selected according to being sent to transmission link；Step S201, transmission link selects system to include transmission link detection module and transmission
Link selection module, described transmission link detection module is for detecting the situation of each transmission link；Described transmission link selects
Module is used for selecting suitable transmission link；Step S301, is a transmission link between each LTE module and base station, transmission
After link selection system selectes transmission link, the upstream data of user is sent to the LTE module on the transmission link selected；Step
Rapid S401, the upstream data of user is transferred to base station by selected transmission link by LTE module；Step S501, base station receives
Being transferred to LTE module by transmission link after the downlink data of network, LTE module is transferred to transmission link and selects system, transmission
Downlink data transmission to Wi-Fi module corresponding to user terminal, is sent back user eventually by Wi-Fi module by link selection system
End.The present invention selects system by arranging transmission link, by the communication feelings of the transmission link between all of LTE module and base station
Condition detects, and the access information of user terminal Wi-Fi module received selects suitable transmission link to be transmitted, and keeps away
All telex networks that exempting from has no progeny in a transmission link is connected in Wi-Fi module are interrupted, and have an advantage in that set chain
Road resource, when fractional transmission link circuit condition is poor, selects system by transmission link, reduces the traffic load of this link, will
Data message is transferred on the preferable transmission link of situation, equalizes link load, effectively reduces due to unicast link circuit condition
Decline the impact on network.
One of them embodiment
Two mobile routers of installation on bus, the referred to as first mobile router and the second mobile router, each
Have a Wi-Fi module and a LTE module on mobile router respectively, be called the first Wi-Fi module, second
Wi-Fi module and the first LTE module and the second LTE module.
In prior art, after user terminal accesses the first Wi-Fi module access, its inevitable choice first LTE module is by number
According to being sent to base station, in like manner user terminal access second Wi-Fi module access after, its also inevitable choice the second LTE module by number
According to being sent to base station, the two mobile router independently works.Biography between one of them LTE module and base station
When the communication conditions of transmission link is poor, the communication of its all user terminals being connected in corresponding Wi-Fi module all can be by shadow
Ring, and because the quick mobility of bus, between its LTE module and base station, cellular communications networks is the most unstable, just
The experience making user is very poor.
In the present invention by arrange transmission link select system solve this problem.
After user terminal is accessed by the first Wi-Fi module, user data is sent to chain by the first Wi-Fi module
Road selects system, transmission link detection module two biographies between LTE module and base station of detection in transmission link selection system
The situation of transmission link, and form transmission link table, transmission link selects module to select suitable chain according to transmission link table
Road.Such as transmission link table showing, the transmission link 1 between the first LTE module and base station has interrupted, and the second LTE module
And transmission link 2 communication conditions between base station is good, then transmission link selects module that transmission link 2 can be selected to use as this
The transmission link of family terminal.Second LTE module selects the transfer of system by transmission link after receiving the transmission data of base station,
Sending data back to the first Wi-Fi module, the first Wi-Fi module transfers data to user terminal.
Two transmission links are integrated by the present embodiment, it is judged that the signal intelligence of each transmission link, select signal
The transmission link that intensity is good or data to be transmitted is few is transmitted so that communication speed is high, good communication quality.
One of them embodiment
On each compartment of train, installing N number of Wi-Fi module and M LTE module, wherein the quantity of M and N is permissible
Identical can also differ, the quantity of M and N is set according to the length in compartment, such as can arrange M and N and be all higher than 3.
Transmission link selects system to be arranged on headstock.Transmission link selects system pass through wired or wirelessly connect each
Wi-Fi module and LTE module.Transmission link, altogether a M transmission link is set up between each LTE module and base station.Pass
Transmission link selects system can periodically detect the situation of M transmission link, and forms transmission link table, it is also possible to trigger ground
Detect the situation of each transmission link, form transmission link table.
After the upstream data of user terminal arrives transmission link selection system by one of them Wi-Fi module, transmission
Link selection system can select one of them suitable transmission link, it is also possible to select the transmission link more than to enter simultaneously
Row data are transmitted, and the number of transmission link can be at most all of transmission link, and i.e. M transmission link transmits simultaneously.Elected
Selecting the transmission link more than, when such as two transmission links transmit same data message simultaneously, transmission link selects system
Unite and judge according to the message information received, abandon other messages beyond first message of identical message, and will receive
First message be sent to this Wi-Fi module, be sent to user terminal by this Wi-Fi module.Use one properly
Transmission link or use multiple suitable transmission link to carry out data transmission simultaneously, further ensure stablizing of system
Property.
The present embodiment may be used for low speed or or automobile on, up user terminal data and descending network number
According to using same transmission link, this is because on automobile or low speed train, upstream data and the time of downlink data transmission
Between difference, base station will not change, and the situation of transmission link changes less, therefore uses a transmission link to select system to install
On automobile or train.
One of them embodiment
Arranging two transmission links in high ferro and select system, one is arranged on headstock, and one is arranged on network-based control
Center, the transmission link being called headstock selects the transmission link of system and control centre to select system.The chain of headstock
Road selects system for selecting the transmission tunnel of upstream data between honeycomb and base station, and the transmission link of control centre selects system
For selecting the transmission tunnel of downlink data between base station and Cellular Networks.Because the speed of service of high ferro is exceedingly fast, work as upstream data
After being transmitted, the situation of transmission link may have occurred and that change, so time need to use other transmission link to send
Data message.
The multiple Wi-Fi module of safety and LTE module on compartment, the transmission link of headstock selects system and above-mentioned two to implement
Mode of operation identical, do not repeating at this.Except that, after high ferro is moved, honeycomb and between the transmission link of base station
May can not use or the signal(l)ing condition of transmission link there occurs change greatly, now, it is necessary to use other
Downlink data is sent to user terminal by transmission link.
As in figure 2 it is shown, 3 honeycombs are connected with network foundation by 2 base stations, it is called tunnel 1, tunnel 2 and tunnel
The IP address of 3,3 honeycombs is respectively IP1, IP2 and IP3, when the upstream data of client terminal is sent to base station 1 by tunnel 1,
And after being sent to network by base station 1, the downlink data of its network is sent to the transmission link of control centre and selects system, controls
The transmission link at center selects system to judge the situation in each tunnel, selects suitable transmission link, such as according to the feelings in tunnel
Condition selects tunnel 3 as the transmission channel of network downstream data, then the transmission link of control centre selects system by under network
Row data are sent to base station 2, and base station 2 is sent to honeycomb 3 by tunnel 3.According to the destination address being attached on message, it is
The downlink data of honeycomb 1, then this downlink data transmission is selected system to the transmission link of headstock by honeycomb.Follow-up process and
Above-mentioned two embodiment is identical, does not repeats them here.
The present embodiment it is important that be respectively provided with at headstock and control centre transmission link select system, respectively control on
The link selection of row data and the link selection of downlink data.With adapt to cellular signal in the high ferro of high-speed cruising be exceedingly fast change
Situation.
The invention also discloses the system of the method realizing above-mentioned intelligent transportation link selection, it specifically includes user eventually
End, Wi-Fi module, LTE module, base station, transmission link select system, wireless company between described user terminal and Wi-Fi module
Connecing, Wi-Fi module is for the access of user terminal, and each Wi-Fi module selects system signal to be connected with transmission link, each
LTE module selects system signal to be connected with transmission link, forms transmission link, described transmission between each LTE module and base station
Link selection system is according to the situation of each link, to the suitable transmission link of each user terminal selecting.
Transmission link as shown in Figure 3 selects the functional module framework figure of system, it include transmission link detection module and
Transmission link selects module, and described transmission link detection module is for detecting the situation of each transmission link；Described transmission link
Module is selected to be used for selecting suitable transmission link；After transmission link selects system to select transmission link, by the upper line number of user
According to the LTE module being sent on the transmission link selected.
In Fig. 3, return link i.e. refers to the transmission link selected, return link include return link 1, return link 2 ...,
Return link N, return link selects the i.e. transmission link of module to select module, return link detection module i.e. transmission link detection mould
Block, the user data i.e. upstream data of user, link-state list i.e. represents the table of each return link state.
The coefficient gone out given in the above embodiments and parameter, be available to those skilled in the art and realize or use
The present invention's, the present invention does not limit and only takes aforementioned disclosed numerical value, without departing from the present invention in the case of the inventive idea, this
Above-described embodiment can be made various modifications or adjustment by the technical staff in field, thus protection scope of the present invention does not goes up
State embodiment to be limited, and should be the maximum magnitude meeting the inventive features that claims are mentioned.
Claims (9)
1. the system of an intelligent transportation link selection, it is characterised in that include that network transmission module and transmission link select system
System, described network transmission module is for the data interaction of user terminal with network-side, and described transmission link selects system to include passing
Transmission link detection module and transmission link select module, and described transmission link detection module is for detecting the feelings of each transmission link
Condition；Described transmission link selects module to be used for selecting the data of suitable transmission link, user terminal or network-side by choosing
Fixed suitable transmission link is transmitted, and described network transmission module includes first network transport module and the transmission of the second network
Module, described transmission link selects system to be connected with each network transmission module signal respectively, each second network transmission module
And it is a transmission link between network-side；Described first network transport module, will for receiving the access information of user terminal
The data of user terminal are sent to transmission link and select system, and transmission link selects the data of network-side that system receives send out
Give user terminal；Described second network transmission module is for being transferred to the data of user terminal by selected transmission link
Network-side, and the data of the network-side of reception are transferred to transmission link selection system；Transmission link selects the selected transmission of system
After link, the data of user terminal are sent to the second network transmission module on the transmission link selected；Second network transmission
The data of user terminal are transferred to network-side by selected transmission link by module.
2. the system of intelligent transportation link selection as claimed in claim 1, it is characterised in that described first network transport module
For Wi-Fi module, cellular module or wire transmission module.
3. the system of intelligent transportation link selection as described in claim 1 or 2, it is characterised in that described second network transmission
Module is Wi-Fi module, cellular module or wire transmission module.
4. the system of intelligent transportation link selection as claimed in claim 1, it is characterised in that described suitable transmission link is
One or more than one.
5. the system of intelligent transportation link selection as claimed in claim 4, it is characterised in that described transmission link selects system
Also include message judge module, when selecting two or more suitable transmission links, start message judge module, lose
Abandon other messages beyond first message of identical message, and first message received is sent to destination address.
6. the system of the intelligent transportation link selection described in claim 1, it is characterised in that described suitable transmission link is permissible
Be signal intensity be more than the transmission link of signal strength threshold, data to be transmitted amount less than data-quantity threshold transmission link or
Unobstructed transmission link.
7. the system of the intelligent transportation link selection as described in claim 1,2,4,5 or 7, it is characterised in that described system bag
Including two transmission links and select system, one for selecting to be sent to the data of user terminal the first chain of network-side
Road, one for selecting to be sent to the data of network-side the second transmission link of user terminal.
8. the system of the intelligent transportation link selection as described in claim 1 or 6, it is characterised in that described transmission link detects
Module is timing detection or the situation of each transmission link of detection trigger.
9. a method for intelligent transportation link selection, it specifically includes below step: user terminal initiates request, accesses it
Corresponding network transmission module, the data of user terminal are sent to transmission link and select system by corresponding network transmission module,
Transmission link selects system to select one or more transmission link according to the situation of each transmission link, and transmission link selects system
The data of user terminal are sent to the network transmission module on the transmission link selected by system, will be used by selected transmission link
The data of family terminal are sent to network-side；Above-mentioned selection refers to the situation according to each transmission link detected, it is suitable to select
Transmission link；Described network transmission module includes first network transport module and the second network transmission module, described chain
Road selects system to be connected with each network transmission module signal respectively, is one between each second network transmission module and network-side
Individual transmission link；The data of user terminal, for receiving the access information of user terminal, are sent out by described first network transport module
Give transmission link and select system, and transmission link selects the data of network-side that system receives be sent to user terminal；Institute
State the second network transmission module for the data of user terminal are transferred to network-side, and general's reception by selected transmission link
The data of network-side be transferred to transmission link and select system；After transmission link selects system to select transmission link, by user eventually
The data of end are sent to the second network transmission module on the transmission link selected；Second network transmission module is by user terminal
Data are transferred to network-side by selected transmission link.
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| CN109479324B (en) * | 2015-05-01 | 2022-09-06 | 恩智浦美国有限公司 | Transmission opportunity ownership transfer and extension in Wireless Local Area Networks (WLANs) |
| CN105553868A (en) * | 2015-09-21 | 2016-05-04 | 宇龙计算机通信科技(深圳)有限公司 | Data transmission method and device and terminal |
| CN107222403A (en) * | 2016-03-22 | 2017-09-29 | 掌赢信息科技（上海）有限公司 | A kind of data transmission method, system and electronic equipment |
| CN107222299A (en) * | 2016-03-22 | 2017-09-29 | 掌赢信息科技（上海）有限公司 | A kind of data transmission method, system and electronic equipment |
| CN105871509A (en) * | 2016-03-25 | 2016-08-17 | 乐视控股（北京）有限公司 | Data transmission method and device |
| CN110786029A (en) * | 2018-11-30 | 2020-02-11 | 深圳市大疆创新科技有限公司 | Communication method, device, mobile platform and control terminal |
| CN110868698A (en) * | 2019-10-08 | 2020-03-06 | 珠海众通乐行网络科技有限公司 | Load balancing method among multiple LTE modules in high-speed rail environment |
| CN113364639B (en) * | 2020-03-03 | 2023-09-08 | 成都鼎桥通信技术有限公司 | Method, system and device for switching transmission links of small station |
| CN111405524B (en) * | 2020-03-25 | 2022-07-12 | 卡斯柯信号有限公司 | Multi-vehicle-ground wireless communication system and communication method thereof |
| CN111726406A (en) * | 2020-06-16 | 2020-09-29 | 杭州涂鸦信息技术有限公司 | Data transmission method and related equipment |
| CN114286397B (en) * | 2020-09-27 | 2023-05-12 | 展讯通信（上海）有限公司 | Transmission link switching method and related products |
| CN115914585B (en) * | 2022-11-04 | 2023-08-01 | 南京林业大学 | Comprehensive management system for broadcast television satellite transmission |
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