CN109874126A - A kind of application method of wireless communication technique in car networking V2V - Google Patents
A kind of application method of wireless communication technique in car networking V2V Download PDFInfo
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- CN109874126A CN109874126A CN201910163618.2A CN201910163618A CN109874126A CN 109874126 A CN109874126 A CN 109874126A CN 201910163618 A CN201910163618 A CN 201910163618A CN 109874126 A CN109874126 A CN 109874126A
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- car borne
- borne gateway
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Abstract
The present invention provides a kind of wireless communication technique in the application method of car networking V2V, first car borne gateway establishes connection with wireless Mesh netword, method includes the following steps: S1, when the second car borne gateway is close to the first car borne gateway, the second car borne gateway issue have identity ciphering information close request；Identity ciphering information is uploaded to top service device by S2, the first car borne gateway；S3, top service device judge whether the identity ciphering information is legal, if so, the first car borne gateway and the second car borne gateway establish the communication link of legitimate secure, while wireless Mesh netword is added in the second car borne gateway；S4, when the second car borne gateway is far from the first car borne gateway, regularly monitoring signal of eating dishes without rice or wine judges the current signal quality of the second car borne gateway；S5, the second car borne gateway exit from wireless Mesh netword according to signal quality or establish communication link with current adjacent third car borne gateway；Have the advantages that high speed, stablizes, cooperates with each other and cooperate with ad hoc network mode between vehicle vehicle.
Description
Technical field
The invention belongs to vehicle networking technical fields, and in particular to a kind of wireless communication technique is in the application side of car networking V2V
Method.
Background technique
In the prior art, car networking generally is carried out using RFID or Ad Hoc technology, uses RFID technique or bluetooth
Performance and scalability are very limited, are unable to satisfy the bandwidth demand of various sensors and image transmission in V2V communication, use Ad
Hoc technology does not support Traditional IP, palpus design specialized, efficient wireless multi-hop Routing Protocol, in the dynamic change of network topology
There are limitations.
Therefore a kind of scheme is needed rationally, between high speed, stable, vehicle vehicle to cooperate with each other and cooperate with the wireless of ad hoc network mode
Application method of the mechanics of communication in car networking V2V.
Summary of the invention
The object of the present invention is to provide a kind of wireless communication technique car networking V2V application method, it is existing to solve
Car networking uses the very limited property of performance and scalability of RFID technique or bluetooth, causes that matter is connected and communicated between car networking
Measure general problem.
The present invention provides the following technical solutions:
A kind of wireless communication technique car networking V2V application method, applied to the vehicle-mounted access in wireless Mesh netword
On point gateway, retaining wireless Mesh netword has the function of redundancy scheme provided by distributed network and re-routes, the first vehicle
Support grid pass establishes connection with wireless Mesh netword, method includes the following steps: S1, when the second car borne gateway is close to the first vehicle
When support grid is closed, it is signal of eating dishes without rice or wine that the second car borne gateway, which issues signal type, and content is the close request with identity ciphering information；
Identity ciphering information is uploaded to top service device by wireless Mesh netword by S2, the first car borne gateway；S3, top service device are sentenced
Whether the identity ciphering information of breaking is legal, if so, the first car borne gateway and the second car borne gateway establish the communication of legitimate secure
Link, while wireless Mesh netword is added by the communication link in the second car borne gateway；If it is not, then the first car borne gateway refusal the
Two car borne gateways establish communication link；S4, when the second car borne gateway is far from the first car borne gateway, regularly monitoring is eated dishes without rice or wine signal
Beacon information and probe information judge the current signal quality of the second car borne gateway；S5, the second car borne gateway are according to signal
Quality exits from wireless Mesh netword or establishes communication link with current adjacent third car borne gateway；S6, when second vehicle-mounted
After gateway communication link change, the first car borne gateway, the second car borne gateway and third car borne gateway add the identity of three at this time
Confidential information is updated in internal routing forwarding list and neighbor list and pre-selection neighbor list；S7, the first car borne gateway,
Two car borne gateways and third car borne gateway respectively match internal routing forwarding list and neighbor list and pre-selection neighbor list
It sets therein and is sent to adjacent car borne gateway；S8, the adjacent car borne gateway are according to exiting or be added Wireless Mesh
The demand and signal quality of network simultaneously adjust communication lines by best neighbouring car borne gateway carries out establishing communication chain with communication quality
Road promotes communication efficiency.
Preferably, the S5, the second car borne gateway exited from wireless Mesh netword according to signal quality or with current phase
Adjacent third car borne gateway establishes communication link, comprising: judges whether the current signal quality of the second car borne gateway is greater than first
The preset signal quality threshold values of car borne gateway, if so, keeping the communication chain between the second car borne gateway and the first car borne gateway
Road；If it is not, then disconnecting the communication link between the second car borne gateway and the first car borne gateway, the second car borne gateway is exited wirelessly
Mesh network, and it is preset to judge whether the current signal quality of the second car borne gateway is greater than current adjacent third car borne gateway
Signal quality threshold values, if so, the second car borne gateway and current adjacent third car borne gateway establish communication link；If it is not, then
Second car borne gateway finds adjacent car borne gateway again.
The beneficial effects of the present invention are:
A kind of wireless communication technique of the present invention is developed in the application method of car networking V2V with being based on Ad Hoc technology
Wireless MESH technology based on, by eating dishes without rice or wine technology and to extend in eating dishes without rice or wine exclusive private information and improve using advanced WIFI
Network communication efficiency, by the constructing communication network between car borne gateway, each vehicle is during traveling, regularly by listening to
Beacon and probe information listens to current link-quality and neighbor information, and regularly updates the link of oneself, to reach vehicle
Quickly connecting between vehicle and the communicating requirement of quick response, reach vehicle and communicate with vehicle, vehicle with other network cooperatings, close on vehicle
It can keep stable wireless interconnected.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the method for the present invention flow diagram；
Fig. 2 is the vehicle net schematic diagram of the specific embodiment of the invention.
Specific embodiment
As shown in Figure 1, a kind of application method of wireless communication technique in car networking V2V, is applied in wireless Mesh netword
Vehicle-mounted access point gateway on, retain wireless Mesh netword have distributed network provided by redundancy scheme and re-route function
Can, the first car borne gateway establishes connection with wireless Mesh netword, method includes the following steps:
S1, when the second car borne gateway is close to the first car borne gateway, it is to eat dishes without rice or wine letter that the second car borne gateway, which issues signal type,
Number, content is the close request with identity ciphering information；
Identity ciphering information is uploaded to top service device by wireless Mesh netword by S2, the first car borne gateway；
S3, top service device judge whether the identity ciphering information is legal, and big data gateway can be used in top service device
It is realized；
If so, the first car borne gateway and the second car borne gateway establish the communication link of legitimate secure, while second is vehicle-mounted
Wireless Mesh netword is added by the communication link in gateway；
If it is not, then the second car borne gateway of the first car borne gateway refusal establishes communication link；
S4, when the second car borne gateway is far from the first car borne gateway, regularly monitoring eat dishes without rice or wine signal beacon information and
Probe information judges the current signal quality of the second car borne gateway；
S5, the second car borne gateway are exited from wireless Mesh netword or vehicle-mounted with current adjacent third according to signal quality
Gateway establishes communication link；
Judge whether the current signal quality of the second car borne gateway is greater than the preset signal quality threshold values of the first car borne gateway,
If so, keeping the communication link between the second car borne gateway and the first car borne gateway；
If it is not, then disconnecting the communication link between the second car borne gateway and the first car borne gateway, the second car borne gateway is exited
Wireless Mesh netword, and it is pre- to judge whether the current signal quality of the second car borne gateway is greater than current adjacent third car borne gateway
If signal quality threshold values,
If so, the second car borne gateway and current adjacent third car borne gateway establish communication link；
If it is not, then the second car borne gateway finds adjacent car borne gateway again.
S6, after the second car borne gateway communication link changes, the first car borne gateway, the second car borne gateway and third vehicle at this time
Support grid closes routing forwarding list and neighbor list and pre-selection neighbor list by the identity ciphering information update of three to inside
In；
S7, the first car borne gateway, the second car borne gateway and third car borne gateway respectively by internal routing forwarding list and
Neighbor list and pre-selection neighbor list are configured to therein and are sent to adjacent car borne gateway；
S8, the adjacent car borne gateway according to the demand and signal quality for exiting or being added wireless Mesh netword and adjust logical
Letter routing, best neighbouring car borne gateway carries out establishing communication link with communication quality, promotes communication efficiency.
A kind of course of work of specific embodiment of the invention are as follows:
As shown in Fig. 2, providing a kind of model for establishing network connection between a kind of wireless Mesh netword vehicle and vehicle, retain it
Having the function of redundancy scheme provided by distributed network and re-routes, V1 to V8 is the vehicle for carrying car borne gateway, and
V1 to V7 has formed wireless Mesh netword, and when V8 is close to wireless Mesh netword, V8 can issue one with identity ciphering information
Close request, V2 vehicle can be directly transmitted to the identity information of V8 the big data Networking Platform on upper layer at this time, by big data net
Platform is closed to determine whether legal, notice V2 establishes the legitimate secure communication channel with V8, and allow V8 that wireless Mesh netword is added,
And establish safe network connection.After V8 is gradually distance from V2, by according to current signal quality, whether judgement needs to exit V8
Whether wireless Mesh netword needs to exit the connection with V2 and establishes connection with V7 or V6；The connection of V8 changes
Afterwards, the network communication topological structure of V8 changes, and equipment V8, V2 and the V7 being related at this time will automatically update internal road
By forwarding list and neighbor list and pre-selection neighbor list, these information are automatically configured into oneself inside and are notified adjacent
Equipment, neighbouring device is as needed and communication signal quality and adjust automatically communication lines are by being automatically rerouted to one and leading to
The lesser adjacent node of letter flow amount is transmitted, to obtain most effective transmission path.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of wireless communication technique is in the application method of car networking V2V, applied to the vehicle-mounted access point in wireless Mesh netword
On gateway, which is characterized in that retaining wireless Mesh netword has redundancy scheme provided by distributed network and re-route function
Can, the first car borne gateway establishes connection with wireless Mesh netword, method includes the following steps:
S1, when the second car borne gateway is close to the first car borne gateway, it is to eat dishes without rice or wine signal that the second car borne gateway, which issues signal type, interior
Holding is the close request with identity ciphering information；
Identity ciphering information is uploaded to top service device by wireless Mesh netword by S2, the first car borne gateway；
S3, top service device judge whether the identity ciphering information is legal,
If so, the first car borne gateway and the second car borne gateway establish the communication link of legitimate secure, while the second car borne gateway
Wireless Mesh netword is added by the communication link；
If it is not, then the second car borne gateway of the first car borne gateway refusal establishes communication link；
S4, when the second car borne gateway is far from the first car borne gateway, regularly monitoring is eated dishes without rice or wine the beacon information and probe of signal
Information judges the current signal quality of the second car borne gateway；
S5, the second car borne gateway exited from wireless Mesh netword according to signal quality or with current adjacent third car borne gateway
Establish communication link；
S6, after the second car borne gateway communication link changes, the first car borne gateway, the second car borne gateway and the vehicle-mounted net of third at this time
It closes in routing forwarding list and neighbor list and the pre-selection neighbor list by the identity ciphering information update of three to inside；
S7, the first car borne gateway, the second car borne gateway and third car borne gateway are respectively by internal routing forwarding list and neighbours
List and pre-selection neighbor list are configured to therein and are sent to adjacent car borne gateway；
S8, the adjacent car borne gateway according to the demand and signal quality for exiting or being added wireless Mesh netword and adjust communication lines
By best neighbouring car borne gateway carries out establishing communication link with communication quality, promotes communication efficiency.
2. a kind of wireless communication technique according to claim 1 is in the application method of car networking V2V, which is characterized in that institute
S5 is stated, the second car borne gateway is exited from wireless Mesh netword according to signal quality or built with current adjacent third car borne gateway
Vertical communication link, comprising:
Judge whether the current signal quality of the second car borne gateway is greater than the preset signal quality threshold values of the first car borne gateway,
If so, keeping the communication link between the second car borne gateway and the first car borne gateway；
If it is not, then disconnecting the communication link between the second car borne gateway and the first car borne gateway, the second car borne gateway is exited wirelessly
Mesh network, and it is preset to judge whether the current signal quality of the second car borne gateway is greater than current adjacent third car borne gateway
Signal quality threshold values,
If so, the second car borne gateway and current adjacent third car borne gateway establish communication link；
If it is not, then the second car borne gateway finds adjacent car borne gateway again.
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| CN201910163618.2A CN109874126A (en) | 2019-03-05 | 2019-03-05 | A kind of application method of wireless communication technique in car networking V2V |
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| CN201910163618.2A CN109874126A (en) | 2019-03-05 | 2019-03-05 | A kind of application method of wireless communication technique in car networking V2V |
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Cited By (2)
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| CN113709914A (en) * | 2020-05-07 | 2021-11-26 | 云米互联科技(广东)有限公司 | Network distribution method of Mesh network, server, Mesh device and storage medium |
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