CN103248688B - Access control method of vehicle-mounted intelligent terminal - Google Patents
Access control method of vehicle-mounted intelligent terminal Download PDFInfo
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Abstract
The invention provides an access control method of a vehicle-mounted intelligent terminal. The access control method comprises the steps as follows: the signal strength of a wireless local area network and a mobile communication network is detected; whether signals of the wireless local area network are superior to those of the mobile communication network is judged according to the detected signal strength; when the signals of the wireless local area network are superior to those of the mobile communication network, a wireless access module selects to establish wireless connection with the wireless local area network; when the signals of the wireless local area network are inferior to those of the mobile communication network, the wireless access module selects to establish wireless connection with the mobile communication network; and the selected wireless local area network or the mobile communication network accesses the internet, and performs data transceiving with a vehicle network service center.
Description
Technical field
The present invention relates to a kind of car networking technology, especially, it is related to a kind of vehicle intelligent terminal
Connection control method.
Background technology
Be skyrocketed through with economic development automobile quantity, lead to traffic jam, energy resource consumption and
The problems such as atmosphere pollution, is increasingly serious, even if this does not make the very flourishing country of road equipment also not
Obtain uncommon in terms of the thoughtcast steering in the past only to meet demand by supply is taken confession, needed two
Technology and method with management to improve the traffic problems being becoming increasingly acute.In the process, " intelligence
The concept of traffic system " just gradually forms, and car networking exactly realizes a weight of intelligent transportation
Want technological means.
The elementary object of car networking development at present is to realize on information network platform to all cars
Attribute information and quiet, multidate information extracted and effectively utilizes, and according to different work(
Demand the running status of all vehicles can effectively be supervised and is provided the one of integrated service
Plant wireless network.So, with vehicle-carrying communication technology and related application research have considerable enter
Exhibition, automobile is again dependent of beyond communication network, and, benefits from wireless communication technology
Development is it now is possible to accomplish, using vehicle as a terminal, terminal to be interconnected with service end
Get up network consisting, and such network is just referred to as car networking.
In existing car networking, vehicle is usually provided with vehicle intelligent terminal, and described vehicle intelligent is eventually
End can be linked into internet by Radio Access Network, and is entered with service centre by internet
Row communication.But, current vehicle intelligent terminal is linked into generally by mobile communications network
Internet, it is a dynamic process because vehicle runs, run to mobile communication in vehicle
The bad place of network signal, vehicle intelligent terminal possibly cannot be linked into network, thus leading to
Vehicle cannot obtain car networking service.Current car networking system service reliability is not high.
For solving the above problems, the present invention provides a kind of vehicle-mounted intelligence with higher service reliability
The connection control method of energy terminal.
Content of the invention
The connection control method of the vehicle intelligent terminal that the present invention provides includes：
Detection WLAN and the signal strength signal intensity of mobile communications network；According to the letter detecting
Number strength information, judges whether the signal of described WLAN is better than described mobile radio communication
The signal of network, it includes：The signal calculating WLAN is with respect to mobile communications network
The comparative factor of signal；The signal of the described WLAN that signal detection module is detected
What intensity level was multiplied by that described comparative factor obtains takes advantage of value, strong with the signal of described mobile communications network
Degree is compared；If the described signal strength signal intensity taking advantage of value to be more than described mobile communications network, sentence
Break and the signal better than described mobile communications network for the signal of described WLAN；Otherwise,
Judge that the signal of described WLAN is inferior to the signal of described mobile communications network；Institute
State WLAN signal be better than described mobile communications network signal when, select with described
WLAN sets up wireless connection；It is inferior to described shifting in the signal of described WLAN
During the signal of dynamic communication network, select wirelessly to be connected with the foundation of described mobile communications network；Pass through
Select mobile communications network or WLAN be linked into internet, and with car networking service
Center carries out data transmit-receive.
In connection control method one preferred embodiment of the vehicle intelligent terminal that the present invention provides,
The signal strength signal intensity of described detection WLAN and mobile communications network includes：Using vehicle-mounted intelligence
The WLAN described in signal detection module real-time detection of energy terminal and described mobile communication
The signal strength signal intensity of network, and the signal strength information detecting is supplied to described vehicle intelligent eventually
The processor at end.
In connection control method one preferred embodiment of the vehicle intelligent terminal that the present invention provides,
The signal strength signal intensity of described detection WLAN and mobile communications network includes：Using vehicle-mounted intelligence
The WLAN described in signal detection module real-time detection of energy terminal and described mobile communication
The signal strength signal intensity of network, and the signal strength information detecting is supplied to described vehicle intelligent eventually
The processor at end.
In connection control method one preferred embodiment of the vehicle intelligent terminal that the present invention provides,
The signal strength signal intensity of described detection WLAN and mobile communications network includes：Using vehicle-mounted intelligence
The signal detection module of energy terminal is periodically detected described WLAN and described movement is led to
The signal strength signal intensity of communication network, and the signal strength information detecting is supplied to described vehicle intelligent
The processor of terminal.
In connection control method one preferred embodiment of the vehicle intelligent terminal that the present invention provides,
Whether the described signal judging described WLAN is better than the letter of described mobile communications network
Number include：If the signal strength signal intensity of described WLAN is more than described mobile communications network
Signal strength signal intensity, then judge that the signal of described WLAN is better than described mobile communications network
Signal；Otherwise, judge that the signal of described WLAN is inferior to described mobile radio communication
The signal of network.
In connection control method one preferred embodiment of the vehicle intelligent terminal that the present invention provides,
If the signal of described WLAN is better than the signal of described mobile communications network, choosing
Select set up with described WLAN be wirelessly connected including：When judging described wireless local
When the signal of network is better than the signal of described mobile communications network, the place of described vehicle intelligent terminal
Reason device issues link order to radio access module, indicates described radio access module and described nothing
Line LAN sets up wireless communication connection.Also include：The processor of described vehicle intelligent terminal
Issue open command to mobile communication module, the described mobile communication module of instruction disconnects and described shifting
The wireless communication connection of dynamic communication network.
In connection control method one preferred embodiment of the vehicle intelligent terminal that the present invention provides,
When the described signal in described WLAN is inferior to the signal of described mobile communications network, choosing
Select set up with described mobile communications network be wirelessly connected including：When judging described wireless local
When the signal of network is inferior to the signal of described mobile communications network, the place of described vehicle intelligent terminal
Reason device issues link order to mobile communication module, indicates described mobile communication module and described nothing
Line communication network sets up wireless communication connection.Also include：The processor of described vehicle intelligent terminal
Issue open command to radio access module, the described radio access module of instruction disconnects and described nothing
The wireless communication connection of line access network.
In the scheme that the present invention provides, described vehicle intelligent terminal is according to described WLAN
The signal of network and described mobile communications network is good and bad, automatically select with described WLAN or
Described mobile communications network is attached, thus ensureing that described vehicle intelligent terminal is smoothly linked into
Internet, obtains the car networking service that described car networking service centre provides.Therefore, the present invention
The connection control method of the vehicle intelligent terminal providing has higher service reliability.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to embodiment
In description the accompanying drawing of required use be briefly described it should be apparent that, below describe in
Accompanying drawing is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings,
Wherein：
Fig. 1 is a kind of schematic diagram of embodiment of car networking system that the present invention provides.
Fig. 2 is a kind of schematic diagram of embodiment of vehicle intelligent terminal that the present invention provides.
Fig. 3 is the schematic flow sheet of the connection control method of the vehicle intelligent terminal shown in Fig. 2.
Specific embodiment
Technical scheme in the embodiment of the present invention will be clearly and completely described below, show
So, described embodiment is only a part of embodiment of the present invention, rather than whole enforcement
Example.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativeness
The all other embodiment being obtained under the premise of work, broadly falls into the scope of protection of the invention.
Refer to Fig. 1, it is a kind of schematic diagram of embodiment of car networking system that the present invention provides.
Described car networking system include vehicle 110, Radio Access Network 160～180, internet 130,
Car networking service centre 140 and described content provider server 150-n (wherein, n=1,2,
3、4).
Described vehicle 110 includes vehicle intelligent terminal 111, and described vehicle intelligent terminal 111 can
As a network node, to be linked into described by described Radio Access Network 160～180
Internet 130, and with described car networking service centre 140 and described content provider server
150-n sets up communication connection；On the other hand, described vehicle intelligent terminal 111 can also pass through
Described Radio Access Network 160～180 is attached with described content provider server 150.
Wherein, described Radio Access Network 160～180 includes WLAN 160, moves
Dynamic communication network 170 and vehicle private network 180, described content provider server 150-n
First content server 150-1, the second content server 150-2, the 3rd content can be included
Server 150-3 and the 4th content server 150-4, wherein said first content server 150
- 1 is connected to described internet 130, and described second content server 150-2 is connected to described nothing
Line access network 160, described 3rd content server 150-3 is connected to described mobile radio communication
Network 170, described 4th content server 150-4 is connected to described vehicle private network 180.
Described WLAN 160, described mobile communications network 170 and described vehicle private network
The content service that connected content provider server 150 can be provided by 180 1 aspects
It is supplied to described vehicle 110, on the other hand it is also possible to access described vehicle 110 further
To described internet 130.
Wherein, described Radio Access Network 160～180 includes WLAN 160, moves
Dynamic communication network 170 and vehicle private network 180, described content provider server 150-n
First content server 150-1, the second content server 150-2, the 3rd content can be included
Server 150-3 and the 4th content server 150-4, wherein said first content server 150
- 1 is connected to described internet 130, and described second content server 150-2 is connected to described nothing
Line access network 160, described 3rd content server 150-3 is connected to described mobile radio communication
Network 170, described 4th content server 150-4 is connected to described vehicle private network 180.
Described WLAN 160, described mobile communications network 170 and described vehicle private network
The content service that connected content provider server 150 can be provided by 180 1 aspects
It is supplied to described vehicle 110, on the other hand it is also possible to access described vehicle 110 further
To described internet 130.
Inside the vehicle intelligent terminal 111 of described vehicle 110 can equipped with described wireless office
Domain network 160, described mobile communications network 170 and described vehicle private network 180 are corresponding
Wireless communication module, and described vehicle intelligent terminal 111 can according to preset rules or
User Defined rule, selects described WLAN 160, described mobile communications network 170
One of them is wirelessly connected with described vehicle private network 180.
When described vehicle 110 is connected to described WLAN 160, described vehicle intelligent
Terminal 111 is connected to described nothing by the radio access module (such as WIFI module) of its own
The WAP of line LAN 160, described WAP can pass through copper cash further
Or internet 130 described in intelligent acess, are simultaneously connected to described second content server 150
-2.Thus, described vehicle 110 just can be linked into described internet 130, and by described
Internet 130 enters line number with described service centre 140 and described first service server 150-1
According to transmitting-receiving, thus obtaining described service centre 140 and described first content server 150-1 carries
For service, or, by described WLAN 160 directly with described second content clothes
Business device 150-2 carries out data transmit-receive, thus obtain described second content server 150-2 providing
Content service.
When described vehicle 110 is connected to described mobile communications network 170, described vehicle intelligent
Mobile communication module (such as 3G communication module or 4G communication by its own for the terminal 111
Module) it is connected with mobile base station foundation.Described mobile base station can be linked into by private-line mode
The Provider Equipment of described mobile communications network 170, and with described 3rd content server 150
- 3 are attached, and therefore described vehicle 110 passes through to connect described mobile communications network 170 just
The service based on described mobile communications network 170 of mobile operator offer can be obtained (such as
Voice communications services or short message service), and obtain described 3rd content server 150- simultaneously
The content service of 3 offers.And, due to described mobile communications network 170 and described internet
It is also intercommunication between 130, therefore described vehicle 110 can be led to by described movement further
Communication network 170 is linked into described internet 130, and by described internet 130 and described clothes
Business center 140 and described first service server 150-1 carry out data transmit-receive, thus obtaining institute
State the service that service centre 140 and described first content server 150-1 provide.
When described vehicle 110 is connected to described vehicle private network 180, described vehicle intelligent
Terminal 111 passes through the private network communication module of its own and other vehicles or roadside access points, even
It is connected into multi-hop, acentric, ad hoc deployed wireless networks.Meanwhile, described roadside access points can
To be connected to described 4th content server 150-4, it is linked into described by wired mode simultaneously
Internet 130.Thus, described vehicle 110 just can by described internet 130 with described
Service centre 140 and described first service server 150-1 carry out data transmit-receive, thus obtaining
Described service centre 140 and the service of described first content server 150-1 offer；Or,
Line number is directly entered with described 4th content server 150-4 by described vehicle private network 180
According to transmitting-receiving thus obtaining the content service that described 4th content server 150-4 provides.
As described above, described vehicle intelligent terminal 111 can according to preset rules or user from
Definition rule, selects described WLAN 160, described mobile communications network 170 and institute
One of them is wirelessly connected to state vehicle private network 180, i.e. described vehicle intelligent terminal
111 can adopt dynamic connection control method.In the present embodiment, described vehicle intelligent is whole
End 111 can refer to Fig. 2, described vehicle intelligent terminal using structure as shown in Figure 2
111 can include processor 310, mobile communication module 320, radio access module 330 and
Signal detection module 340, wherein, described signal detection module 340 is connected to described processor
310, described processor 310 is connected to described mobile communication module 320 and described wireless access
Module 330.And, refer to Fig. 3, the Access Control side of described vehicle intelligent terminal 111
Method may comprise steps of：
Step S1, the signal strength signal intensity of detection WLAN and mobile communications network；
Specifically, described signal detection module 340 can in real time or be periodically detected described nothing
Line LAN 160 and the signal strength signal intensity of described mobile communications network 170, and will detect
Signal strength information is supplied to described processor 310.
Step S2, judges whether the signal of described WLAN is better than described mobile communication
The signal of network；
The signal that described processor 310 can detect according to described signal detection module 340 is strong
Degree information, judges the signal in WLAN described in current location 160 for the described vehicle 110
Whether it is better than the signal of described mobile communications network 170.In one embodiment, described process
Device 310 simply can judge described WLAN 160 and institute according to signal strength signal intensity size
The signal stating mobile communications network 170 is good and bad, i.e. if described WLAN 160
Signal strength signal intensity is more than the signal strength signal intensity of described mobile communications network 170, then described WLAN
The signal of network 160 is better than the signal of described mobile communications network 170；Otherwise, described wireless office
The signal of domain network 160 is inferior to the signal of described mobile communications network 170.
In other embodiments, described processor 310 first can also calculate according to software algorithm
The signal of described WLAN 160 is with respect to the signal of described mobile communications network 170
Comparative factor, and the described WLAN that described signal detection module 340 is detected
After 160 signal strength values are multiplied by described comparative factor, then with described mobile communications network
170 signal strength signal intensity is compared, and determines that the signal of the two is good and bad.
Step S3, if the signal of described WLAN is better than described mobile communications network
Signal, select with described WLAN foundation be wirelessly connected；
When described WLAN judged by the processor 310 of described vehicle intelligent terminal 111
When the signal of network 160 is better than the signal of described mobile communications network 170, it can be to described nothing
Line AM access module 330 issues link order, the described radio access module of instruction 330 and described nothing
Line LAN 160 sets up wireless communication connection.Meanwhile, described processor 310 can also be to
Described mobile communication module 320 issues open command, indicates that described mobile communication module 320 breaks
Open the wireless communication connection with described mobile communications network 170.
Step S4, if the signal of described WLAN is inferior to described mobile communications network
Signal, select with described mobile communications network foundation be wirelessly connected；
When described WLAN judged by the processor 310 of described vehicle intelligent terminal 111
When the signal of network 160 is better than the signal of described mobile communications network 170, it can be to described shifting
Dynamic communication module 320 issues link order, the described mobile communication module of instruction 320 and described shifting
Dynamic communication network 170 sets up wireless communication connection.Meanwhile, described processor 310 can also be to
Described radio access module 330 issues open command, indicates that described radio access module 330 breaks
Open the wireless communication connection with described WLAN 160.
Step S5, is linked into interconnection by the mobile communications network or WLAN selecting
Net, and carry out data transmit-receive with car networking service centre.
In described mobile communication module 320 or described radio access module 330 and described wireless office
Domain network 160 or described mobile communications network 170 are set up after wirelessly connecting, described vehicle-mounted intelligence
Terminal 111 just can pass through described WLAN 160 or described mobile communications network 170
It is linked into described internet 130, and by described internet 130 and the service of described car networking
The heart 140 carries out data transmit-receive.
In the scheme that the present invention provides, described vehicle intelligent terminal 111 can be according to described nothing
The signal of line LAN 160 and described mobile communications network 170 is good and bad, automatically selects and institute
State WLAN 160 or described mobile communications network 170 is attached, thus ensureing institute
State vehicle intelligent terminal 111 and be smoothly linked into internet, thus obtaining in described car networking service
The car networking service that the heart 140 provides.Therefore, the present invention provide vehicle intelligent terminal and its connect
Access control method has higher service reliability.
The foregoing is only embodiments of the invention, not thereby limit the patent model of the present invention
Enclose, equivalent structure or equivalent flow conversion that every utilization present specification is made, or
Directly or indirectly it is used in the technical field of other correlations, all include the patent in the present invention in the same manner
In protection domain.
Claims (7)
1. a kind of connection control method of vehicle intelligent terminal is it is characterised in that include：
Detection WLAN and the signal strength signal intensity of mobile communications network；
According to the signal strength information detecting, whether judge the signal of described WLAN
Better than the signal of described mobile communications network, it includes：Calculate the signal phase of WLAN
Comparative factor for the signal of mobile communications network；Described in signal detection module is detected
What the signal strength values of WLAN were multiplied by that described comparative factor obtains takes advantage of value, with described shifting
The signal strength signal intensity of dynamic communication network is compared；If described take advantage of value to be more than described mobile radio communication
The signal strength signal intensity of network, then judge that the signal of described WLAN is better than described mobile communication
The signal of network；Otherwise, judge that the signal of described WLAN is inferior to described movement and leads to
The signal of communication network；
When the signal of described WLAN is better than the signal of described mobile communications network, choosing
Select to set up with described WLAN and be wirelessly connected；
When the signal of described WLAN is inferior to the signal of described mobile communications network, choosing
Select to set up with described mobile communications network and be wirelessly connected；
Internet is linked into by the mobile communications network or WLAN selecting, and and car
The Internet services center carries out data transmit-receive.
2. method according to claim 1 is it is characterised in that the wireless office of described detection
The signal strength signal intensity of domain network and mobile communications network includes：Signal inspection using vehicle intelligent terminal
Survey the signal strength signal intensity of WLAN and described mobile communications network described in module real-time detection,
And the signal strength information detecting is supplied to the processor of described vehicle intelligent terminal.
3. method according to claim 1 is it is characterised in that the wireless office of described detection
The signal strength signal intensity of domain network and mobile communications network includes：Signal inspection using vehicle intelligent terminal
Survey module is periodically detected described WLAN and the signal of described mobile communications network is strong
Degree, and the signal strength information detecting is supplied to the processor of described vehicle intelligent terminal.
If 4. method according to claim 1 is it is characterised in that described nothing
The signal of line LAN is better than the signal of described mobile communications network, selects and described wireless office
Domain network is set up wireless connection and is included：
When the signal judging described WLAN is better than described mobile communications network
During signal, the processor of described vehicle intelligent terminal issues link order to radio access module,
Indicate that described radio access module and described WLAN set up wireless communication connection.
If 5. method according to claim 4 is it is characterised in that described nothing
The signal of line LAN is better than the signal of described mobile communications network, selects and described wireless office
Domain network is set up wireless connection and is also included：
The processor of described vehicle intelligent terminal issues open command to mobile communication module, instruction
Described mobile communication module disconnects the wireless communication connection with described mobile communications network.
6. method according to claim 1 it is characterised in that described described wireless
When the signal of LAN is inferior to the signal of described mobile communications network, select to lead to described movement
Communication network is set up wireless connection and is included：
When judging to the signal of described WLAN to be inferior to described mobile communications network
During signal, the processor of described vehicle intelligent terminal issues link order to mobile communication module,
Indicate that described mobile communication module and described cordless communication network set up wireless communication connection.
7. method according to claim 6 it is characterised in that described described wireless
When the signal of LAN is inferior to the signal of described mobile communications network, select to lead to described movement
Communication network is set up wireless connection and is also included：
The processor of described vehicle intelligent terminal issues open command to radio access module, instruction
Described radio access module disconnects the wireless communication connection with described Radio Access Network.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104754638A (en) * | 2013-12-27 | 2015-07-01 | 中国移动通信集团公司 | Communication method and corresponding equipment |
| CN103957579B (en) * | 2014-04-25 | 2017-07-14 | 电子科技大学 | A kind of access selection method of vehicle-mounted heterogeneous network communication |
| CN105392204B (en) * | 2015-11-24 | 2018-11-02 | 上海汽车集团股份有限公司 | vehicle communication method and device |
| CN108449784A (en) * | 2018-03-14 | 2018-08-24 | 深圳市海派通讯科技有限公司 | The electricity saving method of intelligent switch action net |
| CN109246781A (en) * | 2018-09-27 | 2019-01-18 | 惠州Tcl移动通信有限公司 | A kind of method based on signal strength output information, storage equipment and intelligent terminal |
| CN111935218A (en) * | 2020-07-02 | 2020-11-13 | 云南电网有限责任公司 | Power grid data efficient reporting method based on multi-channel performance perception |
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