CN103248688A - Access control method of vehicle-mounted intelligent terminal - Google Patents

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

The connection control method of vehicle intelligent terminal

Technical field

The present invention relates to a kind of car networking technology, especially, relate to a kind of connection control method of vehicle intelligent terminal.

Background technology

Along with economic development automobile quantity rapidly increases, cause problems such as traffic jam, energy resource consumption and air pollution serious day by day, even if this feasible very flourishing country of road equipment also has to turn to technology and the method taking to supply, need two aspects to manage jointly improve the traffic problems that are becoming increasingly acute from the thoughtcast that only satisfies the demands by supply in the past.In this process, the concept of " intelligent transportation system " just progressively forms, and the car networking realizes an important technical of intelligent transportation just.

The elementary object of the development of car networking at present be implemented on the information network platform to the attribute information of all vehicles and quiet, multidate information extracts and effectively utilize, and according to different functional requirements the running status of all vehicles is effectively supervised and provided a kind of wireless network of integrated service.So, along with the research of vehicle-carrying communication technology and related application has had considerable progress, automobile again is not independent of beyond the communication network, and, benefit from development of wireless communication devices, can accomplish now with vehicle as a terminal terminal and service end to be connected to each other the composition network, such network just is referred to as the car networking.

In the existing car networking, vehicle is provided with vehicle intelligent terminal usually, and described vehicle intelligent terminal can be linked into the Internet by Radio Access Network, and communicates by the Internet and service centre.But, present vehicle intelligent terminal generally is linked into the Internet by mobile communications network, because vehicle operating is a dynamic process, in the place of vehicle operating to the mobile communications network poor signal, vehicle intelligent terminal possibly can't be linked into network, thereby causes vehicle can't obtain the car internet services.Present car networked system service reliability is not high.

Summary of the invention

For addressing the above problem, the invention provides a kind of connection control method with vehicle intelligent terminal of higher service reliability.

The connection control method of vehicle intelligent terminal provided by the invention comprises: the signal strength signal intensity that detects WLAN and mobile communications network; According to detected signal strength information, judge whether the signal of described WLAN is better than the signal of described mobile communications network; When the signal of described WLAN is better than the signal of described mobile communications network, select to set up wireless connections with described WLAN; When the signal of described WLAN is inferior to the signal of described mobile communications network, select to set up wireless connections with described mobile communications network; Be linked into the Internet by mobile communications network or the WLAN of selecting, and carry out data transmit-receive with car internet services center.

In connection control method one preferred embodiment of vehicle intelligent terminal provided by the invention, the signal strength signal intensity of described detection WLAN and mobile communications network comprises: utilize the signal detection module of vehicle intelligent terminal to detect the signal strength signal intensity of described WLAN and described mobile communications network in real time, and detected signal strength information is offered the processor of described vehicle intelligent terminal.

In connection control method one preferred embodiment of vehicle intelligent terminal provided by the invention, the signal strength signal intensity of described detection WLAN and mobile communications network comprises: utilize the signal detection module of vehicle intelligent terminal periodically to detect the signal strength signal intensity of described WLAN and described mobile communications network, and detected signal strength information is offered the processor of described vehicle intelligent terminal.

In connection control method one preferred embodiment of vehicle intelligent terminal provided by the invention, the signal whether described signal of judging described WLAN is better than described mobile communications network comprises: if the signal that the signal strength signal intensity of described WLAN greater than the signal strength signal intensity of described mobile communications network, is then judged described WLAN is better than the signal of described mobile communications network; Otherwise the signal of judging described WLAN is inferior to the signal of described mobile communications network.

In connection control method one preferred embodiment of vehicle intelligent terminal provided by the invention, the signal whether described signal of judging described WLAN is better than described mobile communications network comprises: calculate the signal of described WLAN with respect to the comparative factor of the signal of described mobile communications network; The signal strength values of the detected described WLAN of described signal detection module be multiply by the value of taking advantage of that described comparative factor obtains, compare with the signal strength signal intensity of described mobile communications network; If the signal that the described value of taking advantage of greater than the signal strength signal intensity of described mobile communications network, is then judged described WLAN is better than the signal of described mobile communications network; Otherwise the signal of judging described WLAN is inferior to the signal of described mobile communications network.

In connection control method one preferred embodiment of vehicle intelligent terminal provided by the invention, if the signal of described WLAN is better than the signal of described mobile communications network, selecting to set up wireless connections with described WLAN comprises: when the signal of judging described WLAN is better than the signal of described mobile communications network, the processor of described vehicle intelligent terminal issues link order to radio access module, indicates described radio access module to set up radio communication with described WLAN and is connected.Also comprise: the processor of described vehicle intelligent terminal issues open command to mobile communication module, indicates described mobile communication module to disconnect and is connected with the radio communication of described mobile communications network.

In connection control method one preferred embodiment of vehicle intelligent terminal provided by the invention, when described signal in described WLAN is inferior to the signal of described mobile communications network, selecting to set up wireless connections with described mobile communications network comprises: when the signal of judging described WLAN is inferior to the signal of described mobile communications network, the processor of described vehicle intelligent terminal issues link order to mobile communication module, indicates described mobile communication module to set up radio communication with described cordless communication network and is connected.Also comprise: the processor of described vehicle intelligent terminal issues open command to radio access module, indicates described radio access module to disconnect and is connected with the radio communication of described Radio Access Network.

In scheme provided by the invention, described vehicle intelligent terminal is according to the signal quality of described WLAN and described mobile communications network, automatically select to be connected with described WLAN or described mobile communications network, thereby guarantee that described vehicle intelligent terminal is linked into the Internet smoothly, obtain the car internet services that described car internet services center provides.Therefore, the connection control method of vehicle intelligent terminal provided by the invention has higher service reliability.

Description of drawings

In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:

Fig. 1 is the schematic diagram of a kind of embodiment of car networked system provided by the invention.

Fig. 2 is the schematic diagram of a kind of embodiment of vehicle intelligent terminal provided by the invention.

Fig. 3 is the schematic flow sheet of the connection control method of vehicle intelligent terminal shown in Figure 2.

Embodiment

To the technical scheme in the embodiment of the invention be clearly and completely described below, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.

See also Fig. 1, it is the schematic diagram of a kind of embodiment of car networked system provided by the invention.Described car networked system comprisesvehicle 110, Radio Access Network 160～180, the Internet 130, carinternet services center 140 and described content provider server 150-n (wherein, n=1,2,3,4).

Describedvehicle 110 comprises vehicleintelligent terminal 111, described vehicleintelligent terminal 111 can be used as a network node, be linked into described the Internet 130 by described Radio Access Network 160～180, and establish a communications link with described carinternet services center 140 and described content provider server 150-n; On the other hand, described vehicleintelligent terminal 111 also can be connected with described content provider server 150 by described Radio Access Network 160～180.

Wherein, described Radio Access Network 160～180 comprises WLAN 160,mobile communications network 170 and vehicle private network 180, described content provider server 150-n can comprise first content server 150-1, second content server 150-2, the 3rd content server 150-3 and the 4th content server 150-4, wherein said first content server 150-1 is connected to described the Internet 130, described second content server 150-2 is connected to described Radio Access Network 160, described the 3rd content server 150-3 is connected to describedmobile communications network 170, and described the 4th content server 150-4 is connected to described vehicle private network 180.Described WLAN 160, describedmobile communications network 170 and described vehicle private network 180 can offer the content service that connected content provider server 150 provides describedvehicle 110 on the one hand, on the other hand, also describedvehicle 110 further can be linked into described the Internet 130.

Vehicleintelligent terminal 111 inside of describedvehicle 110 can be equipped with the wireless communication module corresponding with described WLAN 160, describedmobile communications network 170 and described vehicle private network 180, and described vehicleintelligent terminal 111 can be according to preset rules or User Defined rule, and one of them carries out wireless connections to select described WLAN 160, describedmobile communications network 170 and described vehicle private network 180.

When describedvehicle 110 is connected to described WLAN 160, described vehicleintelligent terminal 111 is connected to the WAP (wireless access point) of described WLAN 160 by himself radio access module (such as the WIFI module), described WAP (wireless access point) can further insert described the Internet 130 by copper cash or optical fiber, is connected to described second content server 150-2 simultaneously.Thus, describedvehicle 110 just can be linked into described the Internet 130, and carry out data transmit-receive by described the Internet 130 with describedservice centre 140 and the described first service server 150-1, thereby obtain the service that describedservice centre 140 and described first content server 150-1 provide, perhaps, directly carry out data transmit-receive with described second content server 150-2 by described WLAN 160, thereby obtain the content service that described second content server 150-2 provides.

When describedvehicle 110 was connected to describedmobile communications network 170, described vehicleintelligent terminal 111 connected with the mobile base station by the mobile communication module (such as 3G communication module or 4G communication module) of himself.Described mobile base station can be linked into operator's equipment of describedmobile communications network 170 by private-line mode, and be connected with described the 3rd content server 150-3, therefore describedvehicle 110 just can obtain the service based on described mobile communications network 170 (such as voice communications services or short message service) that mobile operator provides by connecting describedmobile communications network 170, and obtains the content service that described the 3rd content server 150-3 provides simultaneously.And, owing to also be intercommunication between describedmobile communications network 170 and the described the Internet 130, therefore describedvehicle 110 can further be linked into described the Internet 130 by describedmobile communications network 170, and carry out data transmit-receive by described the Internet 130 with describedservice centre 140 and the described first service server 150-1, thereby obtain the service that describedservice centre 140 and described first content server 150-1 provide.

When describedvehicle 110 was connected to described vehicle private network 180, described vehicleintelligent terminal 111 connected into multi-hop, acentric, ad hoc deployed wireless networks by himself private network communication module and other vehicles or roadside access point.Simultaneously, described roadside access point can be connected to described the 4th content server 150-4, is linked into described the Internet 130 by wired mode simultaneously.Thus, describedvehicle 110 just can carry out data transmit-receive with describedservice centre 140 and the described first service server 150-1 by described the Internet 130, thereby obtains the service that describedservice centre 140 and described first content server 150-1 provide; Perhaps, thus directly carry out data transmit-receive with described the 4th content server 150-4 by described vehicle private network 180 and obtain the content service that described the 4th content server 150-4 provides.

As mentioned above, described vehicleintelligent terminal 111 can be according to preset rules or User Defined rule, one of them carries out wireless connections to select described WLAN 160, describedmobile communications network 170 and described vehicle private network 180, and namely described vehicleintelligent terminal 111 can adopt dynamic connection control method.In the present embodiment, described vehicleintelligent terminal 111 can adopt structure as shown in Figure 2, see also Fig. 2, described vehicleintelligent terminal 111 can compriseprocessor 310,mobile communication module 320,radio access module 330 andsignal detection module 340, wherein, describedsignal detection module 340 is connected to describedprocessor 310, and describedprocessor 310 is connected to describedmobile communication module 320 and described radio access module 330.And, seeing also Fig. 3, the connection control method of described vehicleintelligent terminal 111 can may further comprise the steps:

Step S1, the signal strength signal intensity of detection WLAN and mobile communications network;

Particularly, describedsignal detection module 340 can be in real time or is periodically detected the signal strength signal intensity of described WLAN 160 and describedmobile communications network 170, and detected signal strength information is offered describedprocessor 310.

Step S2 judges whether the signal of described WLAN is better than the signal of described mobile communications network;

Describedprocessor 310 can judge whether describedvehicle 110 is better than the signal of describedmobile communications network 170 at the signal of the describedWLAN 160 of current location according to describedsignal detection module 340 detected signal strength informations.In one embodiment, describedprocessor 310 can be judged the signal quality of described WLAN 160 and describedmobile communications network 170 simply according to the signal strength signal intensity size, namely, if the signal strength signal intensity of described WLAN 160 is greater than the signal strength signal intensity of describedmobile communications network 170, then the signal of describedWLAN 160 is better than the signal of describedmobile communications network 170; Otherwise the signal of describedWLAN 160 is inferior to the signal of describedmobile communications network 170.

In other embodiments, describedprocessor 310 can also calculate the signal of described WLAN 160 earlier with respect to the comparative factor of the signal of describedmobile communications network 170 according to software algorithm, and the signal strength values of describedsignal detection module 340 detected described WLAN 160 be multiply by after the described comparative factor, signal strength signal intensity with describedmobile communications network 170 compares again, determines the signal quality of the two.

Step S3 if the signal of described WLAN is better than the signal of described mobile communications network, selects to set up wireless connections with described WLAN;

When the signal of judging described WLAN 160 when theprocessor 310 of described vehicleintelligent terminal 111 is better than the signal of describedmobile communications network 170, it can issue link order to describedradio access module 330, indicates describedradio access module 330 to set up radio communication with described WLAN 160 and is connected.Simultaneously, describedprocessor 310 can also issue open command to describedmobile communication module 320, indicates describedmobile communication module 320 to disconnect and is connected with the radio communication of describedmobile communications network 170.

Step S4 if the signal of described WLAN is inferior to the signal of described mobile communications network, selects to set up wireless connections with described mobile communications network;

When the signal of judging described WLAN 160 when theprocessor 310 of described vehicleintelligent terminal 111 is better than the signal of describedmobile communications network 170, it can issue link order to describedmobile communication module 320, indicates describedmobile communication module 320 to set up radio communication with describedmobile communications network 170 and is connected.Simultaneously, describedprocessor 310 can also issue open command to describedradio access module 330, indicates describedradio access module 330 to disconnect and is connected with the radio communication of describedWLAN 160.

Step S5 is linked into the Internet by mobile communications network or the WLAN of selecting, and carries out data transmit-receive with car internet services center.

After describedmobile communication module 320 or describedradio access module 330 and described WLAN 160 or describedmobile communications network 170 are set up wireless connections, described vehicleintelligent terminal 111 just can be linked into described the Internet 130 by described WLAN 160 or describedmobile communications network 170, and carries out data transmit-receive by described the Internet 130 with described carinternet services center 140.

In scheme provided by the invention, described vehicleintelligent terminal 111 can be according to the signal quality of described WLAN 160 and describedmobile communications network 170, automatically select to be connected with described WLAN 160 or describedmobile communications network 170, thereby guarantee that described vehicleintelligent terminal 111 is linked into the Internet smoothly, thereby obtain the car internet services that described carinternet services center 140 provides.Therefore, vehicle intelligent terminal provided by the invention and connection control method thereof have higher service reliability.

The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.

Claims (9)

1. the connection control method of a vehicle intelligent terminal is characterized in that, comprising:

Detect the signal strength signal intensity of WLAN and mobile communications network;

According to detected signal strength information, judge whether the signal of described WLAN is better than the signal of described mobile communications network;

When the signal of described WLAN is better than the signal of described mobile communications network, select to set up wireless connections with described WLAN;

When the signal of described WLAN is inferior to the signal of described mobile communications network, select to set up wireless connections with described mobile communications network;

Be linked into the Internet by mobile communications network or the WLAN of selecting, and carry out data transmit-receive with car internet services center.

2. method according to claim 1, it is characterized in that, the signal strength signal intensity of described detection WLAN and mobile communications network comprises: utilize the signal detection module of vehicle intelligent terminal to detect the signal strength signal intensity of described WLAN and described mobile communications network in real time, and detected signal strength information is offered the processor of described vehicle intelligent terminal.

3. method according to claim 1, it is characterized in that, the signal strength signal intensity of described detection WLAN and mobile communications network comprises: utilize the signal detection module of vehicle intelligent terminal periodically to detect the signal strength signal intensity of described WLAN and described mobile communications network, and detected signal strength information is offered the processor of described vehicle intelligent terminal.

4. method according to claim 1 is characterized in that, the signal whether described signal of judging described WLAN is better than described mobile communications network comprises:

If the signal that the signal strength signal intensity of described WLAN greater than the signal strength signal intensity of described mobile communications network, is then judged described WLAN is better than the signal of described mobile communications network; Otherwise the signal of judging described WLAN is inferior to the signal of described mobile communications network.

5. method according to claim 1 is characterized in that, the signal whether described signal of judging described WLAN is better than described mobile communications network comprises:

Calculate the signal of described WLAN with respect to the comparative factor of the signal of described mobile communications network;

The signal strength values of the detected described WLAN of described signal detection module be multiply by the value of taking advantage of that described comparative factor obtains, compare with the signal strength signal intensity of described mobile communications network;

If the signal that the described value of taking advantage of greater than the signal strength signal intensity of described mobile communications network, is then judged described WLAN is better than the signal of described mobile communications network; Otherwise the signal of judging described WLAN is inferior to the signal of described mobile communications network.

6. method according to claim 1 is characterized in that, if the signal of described WLAN is better than the signal of described mobile communications network, selects to set up wireless connections with described WLAN and comprises:

When the signal of judging described WLAN is better than the signal of described mobile communications network, the processor of described vehicle intelligent terminal issues link order to radio access module, indicates described radio access module to set up radio communication with described WLAN and is connected.

7. method according to claim 6 is characterized in that, if the signal of described WLAN is better than the signal of described mobile communications network, selects to set up wireless connections with described WLAN and also comprises:

The processor of described vehicle intelligent terminal issues open command to mobile communication module, indicates described mobile communication module to disconnect and is connected with the radio communication of described mobile communications network.

8. method according to claim 1 is characterized in that, when described signal in described WLAN is inferior to the signal of described mobile communications network, selects to set up wireless connections with described mobile communications network and comprises:

When the signal of judging described WLAN is inferior to the signal of described mobile communications network, the processor of described vehicle intelligent terminal issues link order to mobile communication module, indicates described mobile communication module to set up radio communication with described cordless communication network and is connected.

9. method according to claim 8 is characterized in that, when described signal in described WLAN is inferior to the signal of described mobile communications network, selects to set up wireless connections with described mobile communications network and also comprises:

The processor of described vehicle intelligent terminal issues open command to radio access module, indicates described radio access module to disconnect and is connected with the radio communication of described Radio Access Network.

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