CN108683986A - Fleet communications method, computer readable storage medium and terminal - Google Patents
Fleet communications method, computer readable storage medium and terminal Download PDFInfo
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- CN108683986A CN108683986A CN201810431035.9A CN201810431035A CN108683986A CN 108683986 A CN108683986 A CN 108683986A CN 201810431035 A CN201810431035 A CN 201810431035A CN 108683986 A CN108683986 A CN 108683986A
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- transmitting terminal
- receiving terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Traffic Control Systems (AREA)
Abstract
A kind of fleet communications method, computer readable storage medium and terminal, the method includes：Obtain the data packet transmitted by the transmitting terminal vehicle in itself coverage area；The data packet is to be sent to the data packet of receiving terminal vehicle；The information of the communication channel selected by the transmitting terminal vehicle is determined based on transmitted data packet, and is obtained the identity of receiving terminal vehicle and be presently in location information；Identity based on communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle and it is presently in location information, chooses corresponding communication pattern and the data packet of the transmitting terminal vehicle is transmitted to the receiving terminal vehicle.Above-mentioned scheme can improve the reliability of fleet vehicle communication.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of communication means, computer readable storage medium and
Terminal.
Background technology
The network that fleet is made of multiple vehicle nodes is all widely used in the activity such as self-driving travel, cross-country pulling force.
Existing fleet communications are realized by intercom or mobile terminal.Although the former does not need the support of any network, letter
It is single to cease the mode exchanged, cannot meet the needs of people are growing；The latter's communications cost is higher, and is moved in vehicle high-speed
In the case of be difficult to ensure communication quality.
Existing vehicle-mounted communication method be broadly divided into cellular communication (LTE-V) method based on long term evolution (LTE) and
Wireless communications method (DSRC) based on IEEE 802.11p, the former will be by base station or the frequency spectrum authorized using LTE；The latter is only
The data exchange within the scope of tens meters can be met.
In the practical application scene of fleet communications, often number of vehicles is more in fleet, communication requirement is different, single
The effect is unsatisfactory for communication means.Therefore, the communication means of the fleet in existing fleet the problem of there is poor reliability.
Invention content
Present invention solves the technical problem that being how to improve the reliability of vehicle communication in fleet.
In order to solve the above technical problems, an embodiment of the present invention provides a kind of fleet communications method, the method includes：
Obtain the data packet transmitted by the transmitting terminal vehicle in itself coverage area；The data packet is to be sent to
The data packet of receiving terminal vehicle；
The information of the communication channel selected by the transmitting terminal vehicle is determined based on transmitted data packet, and obtains reception
It holds the identity of vehicle and is presently in location information；
Identity based on communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle and it is presently in position
Confidence ceases, and chooses corresponding communication pattern and the data packet of the transmitting terminal vehicle is transmitted to the receiving terminal vehicle.
Optionally, the identity based on the communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle and
It is presently in location information, corresponding communication pattern is chosen and the data packet of the transmitting terminal vehicle is transmitted to the receiving terminal vehicle
, including：
Communication channel selected by the transmitting terminal vehicle is business channels and the transmitting terminal vehicle and the reception
When end vehicle is belonged in the coverage area of same roadside unit, using LTE-V-DIRECT patterns as the transmitting terminal vehicle and institute
State the communication pattern between receiving terminal vehicle；
Roadside unit belonging to the transmitting terminal vehicle establishes LTE-V-DIRECT patterns to transmitting terminal vehicle transmission
Prompt message；
The transmitting terminal vehicle receives the prompt message for establishing LTE-V-DIRECT patterns and only by preset LTE
Vertical authorized spectrum band is established point-to-point direct communication with the receiving terminal vehicle and is connect；
The data packet is sent to described connect by the transmitting terminal vehicle by the point-to-point direct communication connection established
Receiving end vehicle.
Optionally, the identity based on the communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle and
It is presently in location information, corresponding communication pattern is chosen and the data packet of the transmitting terminal vehicle is transmitted to the receiving terminal vehicle
, further include：
Communication channel selected by the transmitting terminal vehicle is business channels and the transmitting terminal vehicle and the reception
Vehicle is non-at end when belonging in the coverage area of same roadside unit, using LTE-V-CELL patterns as the transmitting terminal vehicle and institute
State the communication pattern between receiving terminal vehicle；
The data packet is sent to the receiving terminal by the roadside unit belonging to the transmitting terminal vehicle by LTE Cellular Networks
Roadside unit belonging to vehicle；
Roadside unit belonging to the receiving terminal vehicle receives the data packet and is sent to the receiving terminal vehicle.
Optionally, the identity based on the communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle and
It is presently in location information, corresponding communication pattern is chosen and the data packet of the transmitting terminal vehicle is transmitted to the receiving terminal vehicle
, further include：
Communication channel selected by the transmitting terminal vehicle is common frequency channel and the transmitting terminal vehicle and the reception
End vehicle is when belonging in the coverage area of same roadside unit, and DSRC_IN patterns as the transmitting terminal vehicle and described are connect
Communication pattern between receiving end vehicle；
Roadside unit belonging to the transmitting terminal vehicle establishes DSRC_IN communication patterns to transmitting terminal vehicle transmission
Prompt message；
The transmitting terminal vehicle, which receives the prompt message for establishing DSRC_IN communication patterns and determines, arrives the receiving terminal
The best multihop path of vehicle；
The data packet is sent to described connect by the roadside unit belonging to the transmitting terminal vehicle by best multihop path
Receiving end vehicle.
Optionally, the identity based on the communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle and
It is presently in location information, corresponding communication pattern is chosen and the data packet of the transmitting terminal vehicle is transmitted to the receiving terminal vehicle
, further include：
Communication channel selected by the transmitting terminal vehicle is common frequency channel and the transmitting terminal vehicle and the reception
Vehicle is non-at end when belonging in the coverage area of same roadside unit, using DSRC_OUT patterns as the transmitting terminal vehicle and described
Communication pattern between receiving terminal vehicle；
The data packet is passed through cable-network transmission to the receiving terminal by the roadside unit belonging to the transmitting terminal vehicle
Roadside unit belonging to vehicle；
The number that roadside unit belonging to the receiving terminal vehicle receives the data packet and will be received by wireless network
It is sent to the receiving terminal vehicle according to packet.
Optionally, the identity based on the communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle and
It is presently in location information, corresponding communication pattern is chosen and the data packet of the transmitting terminal vehicle is transmitted to the receiving terminal vehicle
, further include：
Communication channel selected by the transmitting terminal vehicle is common frequency channel and the transmitting terminal vehicle and the reception
It is in the vehicle non-coverage area for belonging to same roadside unit of end and non-when belonging to same fleet, using LTE-V-CELL patterns as institute
State the communication pattern between transmitting terminal vehicle and the receiving terminal vehicle；
The data packet is passed through LTE cellular transmissions to the receiving terminal by the roadside unit belonging to the transmitting terminal vehicle
Roadside unit belonging to vehicle；
Roadside unit belonging to the receiving terminal vehicle receives the data packet and is sent to the receiving terminal vehicle.
Optionally, when the receiving terminal vehicle receives the data packet that multiple transmitting terminal vehicles are sent, the method is also
Including：
The receiving terminal vehicle obtains the weight between the multiple transmitting terminal vehicle；
For the data packet of the transmitting terminal vehicle with different weights, the receiving terminal vehicle is suitable according to the height of weight
Sequence discharges received corresponding data packet successively；
For the information of the transmitting terminal vehicle with equal weight, the receiving terminal vehicle is suitable according to the priority of receiving time
Sequence discharges received corresponding data packet successively.
The embodiment of the present invention additionally provides a kind of fleet communications system, the system comprises：
Multiple roadside units and vehicle；The vehicle for sending information is known as transmitting terminal vehicle, transmitted by transmitting terminal vehicle
The intended recipient object of information be known as receiving terminal vehicle；When transmitting terminal vehicle is located in the coverage area of a roadside unit,
The roadside unit is known as the roadside unit belonging to transmitting terminal vehicle；When receiving terminal vehicle is located at the coverage area of a roadside unit
When interior, which is known as the roadside unit belonging to receiving terminal vehicle
Roadside unit belonging to transmitting terminal vehicle is suitable for obtaining transmitted by the transmitting terminal vehicle in itself coverage area
Data packet, the data packet is to be sent to the data packet of receiving terminal vehicle；The hair is determined based on transmitted data packet
The information of communication channel selected by sending end vehicle, and obtain the identity of receiving terminal vehicle and be presently in location information；
Identity based on communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle and it is presently in location information, selected
Take corresponding communication pattern；
The transmitting terminal vehicle, suitable for the data packet of the transmitting terminal vehicle is transmitted to the receiving terminal vehicle；
The receiving terminal vehicle is suitable for receiving data packet and release that the transmitting terminal vehicle is sent.
Optionally, the roadside unit belonging to the transmitting terminal vehicle is suitable for working as the communication selected by the transmitting terminal vehicle
When channel is that business channels and the transmitting terminal vehicle are belonged to the receiving terminal vehicle in the coverage area of same roadside unit,
Using LTE-V-DIRECT patterns as the communication pattern between the transmitting terminal vehicle and the receiving terminal vehicle；To the transmission
End vehicle sends the prompt message for establishing LTE-V-DIRECT patterns；
The transmitting terminal vehicle, suitable for receiving the prompt message for establishing LTE-V-DIRECT patterns and by preset
LTE independent authorizations frequency range is established point-to-point direct communication with the receiving terminal vehicle and is connect；It is direct by the point-to-point established
The data packet is sent to the receiving terminal vehicle by communication connection.
Optionally, the roadside unit belonging to the transmitting terminal vehicle is suitable for working as the communication selected by the transmitting terminal vehicle
Channel is business channels and the transmitting terminal vehicle and the receiving terminal vehicle is non-belongs in the coverage area of same roadside unit
When, using LTE-V-CELL patterns as the communication pattern between the transmitting terminal vehicle and the receiving terminal vehicle；By the number
The roadside unit belonging to the receiving terminal vehicle is sent to by LTE Cellular Networks according to packet；
Roadside unit belonging to the receiving terminal vehicle, suitable for receiving the data packet and being sent to the receiving terminal vehicle
.
Optionally, the roadside unit belonging to the transmitting terminal vehicle is suitable for selected by transmitting terminal vehicle determination
Communication channel is the coverage area that common frequency channel and the transmitting terminal vehicle belong to same roadside unit with the receiving terminal vehicle
When interior, using DSRC_IN patterns as the communication pattern between the transmitting terminal vehicle and the receiving terminal vehicle；To the transmission
End vehicle sends the prompt message for establishing DSRC_IN communication patterns；
The transmitting terminal vehicle, suitable for receiving the prompt message for establishing DSRC_IN communication patterns and determining to described
The best multihop path of receiving terminal vehicle；The data packet is sent to the receiving terminal vehicle by best multihop path.
Optionally, the roadside unit belonging to the transmitting terminal vehicle is suitable for working as the communication selected by the transmitting terminal vehicle
Channel is common frequency channel and the transmitting terminal vehicle and the receiving terminal vehicle is non-belongs in the coverage area of same roadside unit
When, using DSRC_OUT patterns as the communication pattern between the transmitting terminal vehicle and the receiving terminal vehicle；By the data
Packet passes through the roadside unit belonging to cable-network transmission to the receiving terminal vehicle；
Roadside unit belonging to the receiving terminal vehicle, suitable for receiving the data packet and being sent to the receiving terminal vehicle
.
Optionally, the roadside unit belonging to the transmitting terminal vehicle is suitable for working as the communication selected by the transmitting terminal vehicle
Channel is common frequency channel and the transmitting terminal vehicle and the receiving terminal vehicle is non-belongs in the coverage area of same roadside unit
And it is non-when belonging to same fleet, using LTE-V-CELL patterns as logical between the transmitting terminal vehicle and the receiving terminal vehicle
Letter pattern；The data packet is passed through into the roadside unit belonging to LTE cellular transmissions to the receiving terminal vehicle；
Roadside unit belonging to the receiving terminal vehicle, suitable for receiving the data packet and being sent to the receiving terminal vehicle
.
Optionally, the receiving terminal vehicle is further adapted for sending when the receiving terminal vehicle receives multiple transmitting terminal vehicles
Data packet when, obtain the weight between the multiple transmitting terminal vehicle；For the transmitting terminal vehicle with different weights
Data packet discharges received corresponding data packet according to the sequence of weight successively；For the hair with equal weight
The information of sending end vehicle discharges received corresponding data packet according to the sequencing of receiving time successively.
The embodiment of the present invention additionally provides a kind of computer readable storage medium, is stored thereon with computer instruction, described
The step of computer instruction executes fleet communications method described in any one of the above embodiments when running.
The embodiment of the present invention additionally provides a kind of terminal, including memory and processor, and energy is stored on the memory
Enough computer instructions run on the processor, the processor execute any of the above-described when running the computer instruction
The step of described fleet communications method.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that：
Above-mentioned scheme can be obtained pending transmitted by the transmitting terminal vehicle in itself coverage area by roadside unit
It send to the data packet of receiving terminal vehicle, and based on the identity of communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle
Location information is identified and be presently in, corresponding communication pattern is chosen so that the vehicle in fleet can be led to by selected
Data packet is transmitted to the receiving terminal vehicle by letter pattern, with using for single communication pattern, can improve fleet vehicle
Between the reliability that communicates, promote the usage experience of user.
Description of the drawings
Fig. 1 is a kind of flow diagram of fleet communications method in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the fleet communications system in the embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of the communication means of fleet communications system in the embodiment of the present invention；
Fig. 4 be between the transmitting terminal vehicle in the embodiment of the present invention and receiving terminal vehicle using LTE-V-DIRECT patterns into
The schematic diagram of row communication；
Fig. 5 is carried out using LTE-V-CELL patterns between the transmitting terminal vehicle in the embodiment of the present invention and receiving terminal vehicle
The schematic diagram of communication；
Fig. 6 is led to using DSRC_IN patterns between the transmitting terminal vehicle in the embodiment of the present invention and receiving terminal vehicle
The schematic diagram of letter；
Fig. 7 is led to using DSRC_OUT patterns between the transmitting terminal vehicle in the embodiment of the present invention and receiving terminal vehicle
The schematic diagram of letter.
Specific implementation mode
Technical solution in the embodiment of the present invention can obtain the transmitting terminal vehicle in itself coverage area by roadside unit
The data packet for being sent to receiving terminal vehicle transmitted by, and based on selected by the transmitting terminal vehicle communication channel and connect
The identity of receiving end vehicle and it is presently in location information, chooses corresponding communication pattern so that vehicle in fleet can be with
Data packet is transmitted to the receiving terminal vehicle by selected communication pattern, it, can for using single communication pattern
To improve the reliability communicated between fleet vehicle, the usage experience of user is promoted.
It is understandable to enable above-mentioned purpose, feature and the advantageous effect of the present invention to become apparent, below in conjunction with the accompanying drawings to this
The specific embodiment of invention is described in detail.
Fig. 1 is a kind of flow diagram of fleet communications method of the embodiment of the present invention.With reference to figure 1, a kind of fleet communications
Method can specifically include following step：
Step S101：Obtain the data packet transmitted by the transmitting terminal vehicle in itself coverage area；The data packet
To be sent to the data packet of receiving terminal vehicle.
In specific implementation, by the vehicle with the distance between roadside unit within a preset range, as the roadside unit
Data packet described in vehicle in coverage area is to be sent to the data packet of receiving terminal vehicle.Wherein, when roadside unit covers model
When vehicle in enclosing is needed to other vehicle transmission datas, the vehicle of transmission data packet is known as transmitting terminal vehicle, and will hair
The intended recipient object of data packet transmitted by sending end vehicle is as receiving terminal vehicle.
Step S102：The information of the communication channel selected by the transmitting terminal vehicle is determined based on transmitted data packet,
And it obtains the identity of receiving terminal vehicle and is presently in location information.
In specific implementation, the communication channel includes the common frequency channel of business channels and non-traffic channel.Business channels
Different frequency ranges are occupied from common frequency channel.Wherein, the LTE frequency ranges that the frequency range of the business channels is distributed by each operator, it is general
The frequency range in passband road is the radio band of 5.9GHZ.
Step S103：Identity based on communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle and work as
Preceding present position information chooses corresponding communication pattern and the data packet of the transmitting terminal vehicle is transmitted to the receiving terminal vehicle
.
In specific implementation, selected communication pattern can be according to communication channel, the receiving terminal vehicle selected by transmitting terminal
Identity and be presently in location information and be determined.In an embodiment of the present invention, selected communication pattern includes
LTE-V-DIRECT patterns, LTE-V-DIRECT patterns, DSRC_IN patterns and DSRC_OUT patterns.Wherein, LTE-V-DIRECT
Pattern, LTE-V-DIRECT patterns, DSRC_IN patterns and DSRC_OUT patterns particular content refer to retouching in detail hereinafter
It states.
Above-mentioned scheme can be obtained pending transmitted by the transmitting terminal vehicle in itself coverage area by roadside unit
It send to the data packet of receiving terminal vehicle, and based on the identity of communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle
Location information is identified and be presently in, corresponding communication pattern is chosen so that the vehicle in fleet can be led to by selected
Data packet is transmitted to the receiving terminal vehicle by letter pattern, with using for single communication pattern, can improve fleet vehicle
Between the reliability that communicates, promote the usage experience of user.
The fleet communications method in the embodiment of the present invention will be further described in detail below.
In order to make it easy to understand, the fleet communications system in implementing first to the present invention does brief introduction.
Fig. 2 shows a kind of structures of fleet communications system in implementation of the present invention.Referring to Fig. 2, a kind of fleet communications system
System, including multiple roadside communication unit RSU and multiple vehicle V.
In specific implementation, a fleet can be formed according to the actual needs between multiple vehicle V.Wherein, same vehicle
Vehicle fleet's mark having the same in team, the information of the fleet belonging to vehicle can be determined by fleet's mark of vehicle.
In an embodiment of the present invention, the vehicle in fleet is identified using identical subnet mask.In other words, using unique son
Net mask generates fleet's identification code of corresponding fleet, be added the IP address of the vehicle of same fleet using identical subnet mask into
Row covering, to obtain the corresponding identity of each vehicle.
The operation principle of communication system shown in Fig. 2 is introduced below in conjunction with Fig. 3.
Referring to Fig. 3, a kind of fleet communications method in the embodiment of the present invention can specifically include following operation：
Step S301：Roadside unit obtains the identification information of the target vehicle in itself coverage area, and builds
Found corresponding self-organizing network.
In specific implementation, the roadside unit is set to the both sides or side in section.When vehicle passes through roadside unit institute
Section when, roadside unit can obtain the location information of neighbouring vehicle, such as can outward be broadcasted by vehicle itself the whole world
Positioning system (Global Position System, GPS) location information gets the vehicle broadcast within the scope of pre-determined distance
GPS positioning information etc..
When getting the location information of neighbouring vehicle, roadside unit can be by the GPS positioning information of acquired vehicle
It is compared with the position of itself, and when determining that the vehicle is less than preset distance threshold at a distance from itself, will correspond to
Vehicle as target vehicle, to which the identification information of identified target vehicle is stored in preset neighbor table.
After establishing target vehicle, according to corresponding communication between all target vehicles of the roadside unit in its coverage area
Agreement, such as IEEE 802.11p agreements, establish self-organizing network.Meanwhile roadside unit can in real time or periodically be based on mesh
The variation for marking vehicle carries out real-time update to the topological structure of the self-organizing network of itself.
Step S302：When needing to send information, transmitting terminal vehicle generates corresponding data packet and is sent to belonging to itself
Roadside unit.
In specific implementation, when vehicle needs are communicated with other vehicles, the transmitting terminal vehicle as information transmitting terminal
Corresponding information to be sent can will be acquired by information collecting devices such as speech recognition system, cameras, and generate correspondence
Data packet be sent to the roadside unit belonging to itself.
Step S303：Roadside unit belonging to transmitting terminal vehicle receives the data packet and judges the transmitting terminal vehicle hair
Send frequency range used in the data packet；When being determined as business frequency range, step S303 can be executed；When being determined as common frequency range
When, then it can execute step S307.
In specific implementation, the data packet generated is when being sent to the roadside unit belonging to itself by transmitting terminal vehicle,
Can according to the actual needs, such as the data packet importance, choosing business channels or common frequency channel will be generated
Data packet is sent to the roadside unit belonging to itself.Roadside unit belonging to transmitting terminal vehicle is receiving in itself coverage area
Vehicle send data packet when, can by frequency range used in received data packet, judge transmitting terminal vehicle send number
Channel according to packet is that business channels or common frequency channel are sent.
Step S304：Roadside unit belonging to the transmitting terminal vehicle judges whether receiving terminal vehicle is in the covering of itself
In range；When judging result is to be, step S305 can be executed；Conversely, can then execute step S306.
In specific implementation, the roadside unit belonging to transmitting terminal vehicle judges whether receiving terminal vehicle is in the covering of itself
In range, that is, judge transmitting terminal vehicle and itself the distance between whether within the scope of preset, and judge transmitting terminal vehicle
Whether belong to receiving terminal vehicle in the coverage area of same roadside unit.
In specific implementation, the roadside unit belonging to the transmitting terminal vehicle can be by will be in itself corresponding neighbor table
The identification information of vehicle in itself coverage area of storage, the identification information progress with the receiving terminal vehicle
Match, whether is belonged in the coverage area of itself with the determination receiving terminal vehicle.Wherein, exist when in the neighbor table for determining itself
When the identification information of receiving terminal vehicle, determine that receiving terminal vehicle belongs in the coverage area of itself；Conversely, can then determine
Receiving terminal vehicle is not belonging in the coverage area of itself.
Step S305：Roadside unit belonging to the transmitting terminal vehicle is using LTE-V-DIRECT patterns as the transmitting terminal
Communication pattern between vehicle and the receiving terminal vehicle.
In specific implementation, the channel used by transmitting terminal vehicle transmission data packet is business channels, and transmitting terminal vehicle
When with receiving terminal vehicle in the coverage area of same roadside unit, the transmitting terminal vehicle and the receiving terminal vehicle are located at
In the corresponding self-organizing network of same roadside unit belonging to described the two, therefore the self-organizing that can be established by the roadside unit
Network communicated namely same roadside unit coverage area in transmitting terminal vehicle and receiving terminal vehicle LTE-V- may be used
DIRECT patterns are communicated, and Fig. 4 is specifically referred to.
Referring to Fig. 4, when determining that transmitting terminal vehicle and receiving terminal vehicle are communicated using LTE-V-DIRECT patterns, institute
LTE-V-DIRECT patterns can be established to transmitting terminal vehicle transmission is corresponding by stating the roadside unit belonging to transmitting terminal vehicle
The prompt message communicated.Meanwhile the roadside unit belonging to the transmitting terminal vehicle will delete the transmitting terminal receiving unit
The data packet of transmission, to save memory.
When receiving the prompt message for establishing LTE-V-DIRECT patterns, the transmitting terminal vehicle passes through preset LTE
Independent authorization frequency range, frequency range 5905MHZ-5925MHz establish point-to-point direct communication with the receiving terminal vehicle and connect
It connects, and when determining that the connection of point-to-point direct communication is successfully established, the data packet generated is straight by the point-to-point established
It connects communication connection and is sent to the receiving terminal vehicle, to complete the once data transmission between receiving terminal vehicle.
Step S306：Roadside unit belonging to the transmitting terminal vehicle is using LTE-V-CELL patterns as the transmitting terminal vehicle
Communication pattern between the receiving terminal vehicle.
In specific implementation, the channel used by transmitting terminal vehicle transmission data packet is business channels, and transmitting terminal vehicle
With receiving terminal vehicle in non-belong in the coverage area of same roadside unit, transmitting terminal vehicle and receiving terminal vehicle will be unable to
It is communicated using the self-organizing network that roadside unit is established, may be used between transmitting terminal vehicle and receiving terminal vehicle at this time
LTE-V-CELL patterns are communicated, and Fig. 5 is specifically referred to.
Referring to Fig. 5, when determining that the transmitting terminal vehicle and receiving terminal vehicle are communicated using LTE-V-CELL patterns,
The data packet that transmitting terminal vehicle is sent can pass sequentially through roadside unit (be known as source roadside unit) belonging to transmitting terminal vehicle with
Roadside unit (being known as target roadside unit) belonging to receiving terminal vehicle is relayed, finally by the roadside belonging to receiving terminal vehicle
Unit is sent to the receiving terminal vehicle.
Step S307：Roadside unit belonging to the transmitting terminal vehicle judges whether the receiving terminal vehicle is in itself
In coverage area；When judging result is to be, step S308 can be executed；Conversely, can then execute step S309.
Step S308：Roadside unit belonging to the transmitting terminal vehicle is using DSRC_IN patterns as the transmitting terminal vehicle
Communication pattern between the receiving terminal vehicle.
In specific implementation, when determining that the roadside unit belonging to the transmitting terminal vehicle determines that the transmitting terminal vehicle is chosen
Channel be common frequency range, and when transmitting terminal vehicle and receiving terminal vehicle are belonged in the coverage area of same roadside unit, send
End vehicle and receiving terminal vehicle may be used DSRC_IN patterns and communicated, and specifically refer to Fig. 6.
Referring to Fig. 6, when determining that the transmitting terminal vehicle is communicated with receiving terminal vehicle using DSRC_IN patterns, institute
It states the roadside unit belonging to transmitting terminal vehicle and sends the prompt message for establishing DSRC_IN communication patterns to the transmitting terminal vehicle.
The transmitting terminal vehicle receives the prompt message for establishing DSRC_IN communication patterns, and determines to the receiving terminal vehicle
Best multihop path is such as determined based on ospf (Open Shortest Path First, OSPF) algorithm
Best multihop path between transmitting terminal vehicle and receiving terminal vehicle etc., and use identified best multihop path by transmitting terminal
The data packet that vehicle is sent is sent to receiving terminal vehicle.Wherein, the best multihop path includes the transmitting terminal vehicle and connect
Multiple vehicles in the corresponding self-organizing network of same roadside unit belonging to receiving end vehicle, i.e., by corresponding self-organizing network
One or more vehicles constitute connection transmitting terminal vehicle and receiving terminal vehicle data transmission channel, by transmitting terminal send number
It is sent to receiving terminal vehicle according to packet, to establish peace for the vehicle transmitting terminal in this self-organizing network and between vehicle receiving terminal
Entirely, stable, efficient information transmission path.
Step S309：Judge whether the transmitting terminal vehicle belongs to same fleet with the receiving terminal vehicle；When judgement is tied
Fruit is that when being, can execute step S310；Conversely, can then execute step S311.
In specific implementation, belong to identification information fleet's mark having the same of the vehicle of same fleet, such as phase
Same subnet mask.Thus, by the way that the fleet in the identification information of the transmitting terminal vehicle and receiving terminal vehicle is identified
Compare, identified whether with the fleet of the determination transmitting terminal vehicle and receiving terminal vehicle it is identical, so that it is determined that the transmitting terminal vehicle
With the receiving terminal vehicle whether belong to same fleet.
Step S310：Roadside unit belonging to the transmitting terminal vehicle is using DSRC_OUT patterns as the transmitting terminal vehicle
Communication pattern between the receiving terminal vehicle.
In specific implementation, the communication channel selected by the transmitting terminal vehicle is common frequency channel and the transmitting terminal vehicle
With the receiving terminal vehicle is non-belong in the coverage area of same roadside unit when, between transmitting terminal vehicle and receiving terminal vehicle
It is communicated using DSRC_OUT patterns, specifically refers to Fig. 7.
Referring to Fig. 7, under DSRC_OUT patterns, roadside unit belonging to the transmitting terminal vehicle (or it is single for source roadside
Member) cable-network transmission to the receiving terminal vehicle institute will be passed through from transmitting terminal vehicle received data packet by wireless network
The roadside unit (or being target roadside unit) of category, then wireless network is passed through by the roadside unit belonging to the receiving terminal vehicle
Received data packet is sent to the receiving terminal vehicle, is completed primary logical between transmitting terminal vehicle and receiving terminal vehicle
Letter.
Step S311：Roadside unit belonging to the transmitting terminal vehicle is using LTE-V-CELL patterns as the transmitting terminal vehicle
Communication pattern between the receiving terminal vehicle.
In specific implementation, the communication channel selected by the transmitting terminal vehicle is business channels and the transmitting terminal vehicle
With the non-coverage area for belonging to same roadside unit of the receiving terminal vehicle in and it is non-belong to same fleet when, can be by LTE-
V-CELL patterns specifically refer to Jie of Fig. 5 as the communication pattern between the transmitting terminal vehicle and the receiving terminal vehicle
It continues, repeats no more.
In specific implementation, receiving terminal vehicle may receive the data packet that multiple vehicles are sent, to communication contention aware occur.
To solve the problems, such as this, in an embodiment of the present invention, assign different vehicles different weights.For example, driving according to each vehicle
The person's of sailing importance difference of role in fleet assigns different vehicles corresponding weight, if fleet team leader administers very important decision,
The driver of headstock and the tailstock needs to be notified to often road conditions to grasp entire fleet's trend, and the vehicle of each family/groupuscule is driven
There are one the driver of group leader role and other everyday drivers in the person of sailing, in this case by the vehicle of entire fleet
It is four weight ranks according to Partition of role of the member in fleet, and identity is arranged in the message header sent for corresponding vehicle
Identifier, such as 11,10,01 and 00 is distinguished successively.When later higher weights vehicle communication behavior with it is ongoing low
When the communication behavior of weight vehicle clashes, into VIP patterns, i.e.,：
(1) receiving terminal vehicle identification goes out the data packet that the vehicle that the informed source newly received is higher weights identity is sent
When, the information of the low weight vehicle received is included in buffering area, then preferential receipt and discharges the vehicle from higher weights
Send data packet identity information.After the message sink release that the vehicle of higher weights is sent, then from buffering area
The information for recalling low weight vehicle continues to discharge.
(2) when the communication behavior of the vehicle with equal weight clashes, receiving terminal vehicle is reached according to data packet
Chronological order into row information release.
The embodiment of the present invention additionally provides a kind of computer readable storage medium, is stored thereon with computer instruction, described
The step of fleet communications method is executed when computer instruction is run.Wherein, the fleet communications method refers to aforementioned
Partial is discussed in detail, and repeats no more.
The embodiment of the present invention additionally provides a kind of terminal, including memory and processor, and energy is stored on the memory
Enough computer instructions run on the processor, the processor execute the fleet when running the computer instruction
The step of communication means.Wherein, the fleet communications method refers to being discussed in detail for preceding sections, repeats no more.
Said program in the embodiment of the present invention can obtain the transmitting terminal vehicle in itself coverage area by roadside unit
The data packet for being sent to receiving terminal vehicle transmitted by, and based on selected by the transmitting terminal vehicle communication channel and connect
The identity of receiving end vehicle and it is presently in location information, chooses corresponding communication pattern so that vehicle in fleet can be with
Data packet is transmitted to the receiving terminal vehicle by selected communication pattern, it, can for using single communication pattern
To improve the reliability communicated between fleet vehicle, the usage experience of user is promoted.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in computer readable storage medium, and storage is situated between
Matter may include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (9)
1. a kind of fleet communications method, which is characterized in that including：
Obtain the data packet transmitted by the transmitting terminal vehicle in itself coverage area；The data packet is to be sent to receiving terminal vehicle
Data packet；
The information of the communication channel selected by the transmitting terminal vehicle is determined based on transmitted data packet, and obtains receiving terminal vehicle
Identity and be presently in location information；
Identity based on communication channel and receiving terminal vehicle selected by the transmitting terminal vehicle and it is presently in position letter
Breath, chooses corresponding communication pattern and the data packet of the transmitting terminal vehicle is transmitted to the receiving terminal vehicle.
2. fleet communications method according to claim 1, which is characterized in that described based on selected by the transmitting terminal vehicle
Communication channel and receiving terminal vehicle identity and be presently in location information, choose corresponding communication pattern by the hair
The data packet of sending end vehicle is transmitted to the receiving terminal vehicle, including：
Communication channel selected by the transmitting terminal vehicle is business channels and the transmitting terminal vehicle and the receiving terminal vehicle
When belonging in the coverage area of same roadside unit, LTE-V-DIRECT patterns as the transmitting terminal vehicle and described are connect
Communication pattern between receiving end vehicle；
Roadside unit belonging to the transmitting terminal vehicle establishes carrying for LTE-V-DIRECT patterns to transmitting terminal vehicle transmission
Show information；
The transmitting terminal vehicle receives the prompt message for establishing LTE-V-DIRECT patterns and is independently awarded by preset LTE
Power frequency range is established point-to-point direct communication with the receiving terminal vehicle and is connect；
The transmitting terminal vehicle is connected by the point-to-point direct communication established the data packet being sent to the receiving terminal
Vehicle.
3. fleet communications method according to claim 2, which is characterized in that described based on selected by the transmitting terminal vehicle
Communication channel and receiving terminal vehicle identity and be presently in location information, choose corresponding communication pattern by the hair
The data packet of sending end vehicle is transmitted to the receiving terminal vehicle, further includes：
Communication channel selected by the transmitting terminal vehicle is business channels and the transmitting terminal vehicle and the receiving terminal vehicle
It is non-when belonging in the coverage area of same roadside unit, LTE-V-CELL patterns as the transmitting terminal vehicle and described are connect
Communication pattern between receiving end vehicle；
The data packet is sent to the receiving terminal vehicle by the roadside unit belonging to the transmitting terminal vehicle by LTE Cellular Networks
Affiliated roadside unit；
Roadside unit belonging to the receiving terminal vehicle receives the data packet and is sent to the receiving terminal vehicle.
4. fleet communications method according to claim 3, which is characterized in that described based on selected by the transmitting terminal vehicle
Communication channel and receiving terminal vehicle identity and be presently in location information, choose corresponding communication pattern by the hair
The data packet of sending end vehicle is transmitted to the receiving terminal vehicle, further includes：
Communication channel selected by the transmitting terminal vehicle is common frequency channel and the transmitting terminal vehicle and the receiving terminal vehicle
When belonging in the coverage area of same roadside unit, using DSRC_IN patterns as the transmitting terminal vehicle and the receiving terminal
Communication pattern between vehicle；
Roadside unit belonging to the transmitting terminal vehicle sends the prompt for establishing DSRC_IN communication patterns to the transmitting terminal vehicle
Information；
The transmitting terminal vehicle, which receives the prompt message for establishing DSRC_IN communication patterns and determines, arrives the receiving terminal vehicle
Best multihop path；
The data packet is sent to the receiving terminal by the roadside unit belonging to the transmitting terminal vehicle by best multihop path
Vehicle.
5. fleet communications method according to claim 4, which is characterized in that described based on selected by the transmitting terminal vehicle
Communication channel and receiving terminal vehicle identity and be presently in location information, choose corresponding communication pattern by the hair
The data packet of sending end vehicle is transmitted to the receiving terminal vehicle, further includes：
Communication channel selected by the transmitting terminal vehicle is common frequency channel and the transmitting terminal vehicle and the receiving terminal vehicle
When in the non-coverage area for belonging to same roadside unit and belonging to same fleet, using DSRC_OUT patterns as the transmitting terminal
Communication pattern between vehicle and the receiving terminal vehicle；
The data packet is passed through cable-network transmission to the receiving terminal vehicle by the roadside unit belonging to the transmitting terminal vehicle
Affiliated roadside unit；
Roadside unit belonging to the receiving terminal vehicle receives the data packet and by wireless network by received data packet
It is sent to the receiving terminal vehicle.
6. fleet communications method according to claim 5, which is characterized in that described based on selected by the transmitting terminal vehicle
Communication channel and receiving terminal vehicle identity and be presently in location information, choose corresponding communication pattern by the hair
The data packet of sending end vehicle is transmitted to the receiving terminal vehicle, further includes：
Communication channel selected by the transmitting terminal vehicle is common frequency channel and the transmitting terminal vehicle and the receiving terminal vehicle
It is in the non-coverage area for belonging to same roadside unit and non-when belonging to same fleet, using LTE-V-CELL patterns as the hair
Communication pattern between sending end vehicle and the receiving terminal vehicle；
The data packet is passed through LTE cellular transmissions to the receiving terminal vehicle by the roadside unit belonging to the transmitting terminal vehicle
Affiliated roadside unit；
Roadside unit belonging to the receiving terminal vehicle receives the data packet and is sent to the receiving terminal vehicle.
7. according to claim 1-6 any one of them fleet communications methods, which is characterized in that when the receiving terminal vehicle receives
To multiple transmitting terminal vehicles send data packet when, further include：
The receiving terminal vehicle obtains the weight between the multiple transmitting terminal vehicle；
For the data packet of the transmitting terminal vehicle with different weights, the receiving terminal vehicle according to weight sequence according to
Corresponding data packet received by secondary release；
For the information of the transmitting terminal vehicle with equal weight, the receiving terminal vehicle according to receiving time sequencing according to
Corresponding data packet received by secondary release.
8. a kind of computer readable storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction fortune
Perform claim requires the step of 1 to 7 any one of them fleet communications method when row.
9. a kind of terminal, which is characterized in that including memory and processor, being stored on the memory can be in the processing
The computer instruction run on device, perform claim requires described in 1 to 7 any one when the processor runs the computer instruction
Fleet communications method the step of.
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