CN106910256A - A kind of multiple antennas associated working method and system under multilane free flow - Google Patents
A kind of multiple antennas associated working method and system under multilane free flow Download PDFInfo
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- CN106910256A CN106910256A CN201510971363.4A CN201510971363A CN106910256A CN 106910256 A CN106910256 A CN 106910256A CN 201510971363 A CN201510971363 A CN 201510971363A CN 106910256 A CN106910256 A CN 106910256A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
- G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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- Business, Economics & Management (AREA)
- Finance (AREA)
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- General Physics & Mathematics (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
- Mobile Radio Communication Systems (AREA)
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Abstract
The invention provides the multiple antennas associated working method and system under a kind of multilane free flow, methods described includes：The uplink information that the OBU received according to more than one roadside unit RSU in default communication zone sends, determines the positional information of the OBU；OBU described in a distance to a declared goal nearest RSU sends downlink information to the OBU；Whether judge to be preset in Preset Time in communication zone has RSU to receive the uplink information that the OBU sends；If so, the step of then continuing executing with the uplink information that the OBU received comprising more than one roadside unit RSU in the default communication zone of the basis sends, until the sign off of the RSU in the OBU and default communication zone.The present invention can solve the problem that on the market partly because the OBU deviations of directivity cause vehicle transaction communications failure problem, on the whole improve OBU vehicle transaction communications success rates.The present invention can also improve occur in multilane free flow process of exchange lane change, jump a queue when OBU vehicle transaction communications success rates.
Description
Technical field
The invention belongs to intelligent transportation field, and in particular to many days under a kind of multilane free flow
Line associated working method and system.
Background technology
(ETC, Electronic Toll Collection, electronics is or not ETC based on bicycle road pattern
Stopping charging system) though technology is more ripe at present, the pattern need to install OBU (OBU,
On-Board Unit, vehicle carried electronic label) vehicle enter specific lane, with low speed (20km/h)
By ETC tracks；For the illegal vehicle for entering ETC tracks, track railing is intercepted automatically,
Processed by manual intervention.The relatively conventional manual toll collection of the E-payment system of bicycle road pattern,
All increased in lane capacity, the effect of energy-saving and emission-reduction, but be still present and be open to traffic
Relatively lower speed, illegal vehicle needs the inconvenience such as live artificial treatment.Vehicle congestion and its cause
Environmental pollution the problems such as need it is urgent solve to be known together as various circles of society, in " internet+"
Under the overall background of " smart city ", the free Flow Technique of multilane based on ETC technologies meet the tendency of and
It is raw.
The free Flow Technique of multilane is managed for improvement traffic congestion, security administration, intelligent parking lot
Comprehensively and accurately scheme is provided Deng urban traffic control, its popularization is with application to improving me
State means of transportation service efficiency, to improve urban transportation intelligent level significant.In view of
The progressively application of the free streaming system of multilane, has OBU vehicles by sustainable growth, free flow charge
System need to be in the case where current road speed not be influenceed, it is ensured that have the trading efficiency of OBU vehicles
With transaction success rate.But at present on the market with the presence of part storage vehicle carried electronic label because of directional diagram
Local derviation causes DSRC, and (DSRC, Dedicated Short Range Communications, specialty are short
The journey communication technology) upward signal deviates normal direction in junction service, and then cause Fail Transaction
Problem, this is reduced to a certain extent the transaction of OBU vehicles under free flow Fare Collection System
Success rate and excessively car rate.Additionally, in multilane free flow process of exchange occur lane change, jump a queue
When can also influence transaction success rate and cross car rate.
The content of the invention
For defect of the prior art, the present invention provides many days under a kind of multilane free flow
Line associated working method and system, solve on the market partly because the OBU deviations of directivity cause vehicle
The problem of transaction communications failure, improves OBU vehicle transaction communications success rates on the whole.
In a first aspect, the invention provides the multiple antennas associated working under a kind of multilane free flow
Method, when having detected vehicle and sailing default communication zone into, wakes up the vehicle mounted electric of the vehicle
Subtab OBU, and perform following steps：
What more than one roadside unit RSU was received in the default communication zone of S1, basis is described
The uplink information that OBU sends, determines the positional information of the OBU；
S2, the positional information according to the OBU, OBU described in distance to a declared goal it is nearest first
RSU sends downlink information to the OBU；
S3, judge in Preset Time preset communication zone in whether there is RSU to receive the OBU
The uplink information of transmission；If so, then continue executing with step S1-S3, until the OBU with it is pre-
If the sign off of the RSU in communication zone.
Preferably, the OBU for being received according to more than one RSU in default communication zone
The uplink information of transmission, determines the positional information of the OBU, including：
The OBU to more than one RSU in default communication zone send uplink information it
Afterwards, the first position information that a RSU sends is received, the first position information is a RSU
What the uplink information that the OBU received according to it sends was obtained；
According to the first position information, the positional information of the OBU is determined.
Preferably, the OBU for being received according to more than one RSU in default communication zone
The uplink information of transmission, determines the positional information of the OBU, including：
The OBU to more than one RSU in default communication zone send uplink information it
Afterwards, multiple second place information that multiple RSU sends, the multiple second place information are received
It is that the uplink information that the OBU that multiple RSU are received according to it sends is obtained；
According to the multiple second place information, the positional information of the OBU is determined.
Preferably, it is described according to the multiple second place information, determine the position of the OBU
Information, including：
The farthest value and most recent value in the multiple second place information are removed, removal is obtained farthest
It is worth multiple second place information of most recent value；
Multiple second place information of the farthest value most recent value of the removal are averaging, it is determined that described
The positional information of OBU.
Preferably, judge to be preset in Preset Time in communication zone whether to have RSU to receive described
The uplink information that OBU sends, methods described also includes：
If it is not, the 2nd RSU then a RSU nearest described in distance to a declared goal sends out to the OBU
Downlink information is sent, and judges preset whether communication zone is interior has RSU to receive institute in Preset Time
State the uplink information of OBU transmissions.
Preferably, it is described to judge preset whether communication zone is interior has RSU to receive in Preset Time
The uplink information that the OBU sends, specially：
After a RSU sends downlink information to the OBU, default communication is judged
Whether there is RSU to receive the uplink information that the OBU sends in region；
If it is not, then judging that a RSU is to the number of times that the OBU sends downlink information
It is no more than preset times value, if it is not, then continue specify a RSU sent out to the OBU
Downlink information is sent, otherwise, the 2nd RSU nearest RSU is to described described in distance to a declared goal
OBU sends downlink information.
Preferably, the multiple antennas include the RSU combinations of single goal positioning antenna, or multiple target
Position the RSU combinations of antenna.
Second aspect, the invention provides the multiple antennas associated working under a kind of multilane free flow
System, the system includes：
Position units, for according to more than one RSU is received in default communication zone
The uplink information that OBU sends, determines the positional information of the OBU；
Designating unit, the positional information of the OBU for being determined according to the position units is specified
A RSU nearest apart from the OBU sends downlink information to the OBU；
Whether judging unit, judging to be preset in communication zone in Preset Time has RSU to receive institute
State the uplink information of OBU transmissions.
Preferably, the designating unit, is additionally operable to,
After a RSU sends downlink information to the OBU, judging unit judges
When receiving the uplink information that the OBU sends without RSU in default communication zone, specify
Twoth RSU nearest apart from a RSU sends downlink information to the OBU.
Preferably, the judging unit, is additionally operable to,
After the 2nd RSU sends downlink information to the OBU, default communication is judged
Whether there is RSU to receive the uplink information that the OBU sends in region.
As shown from the above technical solution, the invention provides many days under a kind of multilane free flow
Line associated working method and system, by more than one roadside unit in default communication zone
RSU determines the positional information of the OBU, so OBU described in distance to a declared goal it is nearest first
RSU sends downlink information to the OBU, and is received in the RSU preset in communication zone
After the uplink information that the OBU sends, repeat the above steps, until the OBU with it is pre-
If the sign off of the RSU in communication zone.The present invention can solve the problem that on the market partly because
The OBU deviations of directivity cause the problem of transaction communications failure, and the transaction of OBU vehicles is improved on the whole
Communication success rate.The present invention can also improve occur in multilane free flow process of exchange lane change,
OBU vehicle transaction communications success rates when jumping a queue.
Brief description of the drawings
In order to illustrate more clearly of the embodiment of the present disclosure or technical scheme of the prior art, below
The accompanying drawing to be used needed for embodiment or description of the prior art will be briefly described, show and
Easy insight, drawings in the following description are only some embodiments of the present disclosure, for this area
For those of ordinary skill, on the premise of not paying creative work, can also be according to these
Figure obtains other accompanying drawings.
Multiple antennas joint under a kind of multilane free flow that Fig. 1 is provided for one embodiment of the invention
The schematic flow sheet of method of work；
Multiple antennas connection under a kind of multilane free flow that Fig. 2 is provided for another embodiment of the present invention
Close the schematic flow sheet of method of work；
Multiple antennas joint under a kind of multilane free flow that Fig. 3 is provided for one embodiment of the invention
The structural representation of work system；
Fig. 4 is slightly away from normal direction schematic diagram for the OBU directional diagrams of vehicle；
Fig. 5 is the OBU directional diagram substantial deviation normal direction schematic diagrames of vehicle；
Fig. 6 is slightly away from normal direction and across road schematic diagram for the OBU directional diagrams of vehicle.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present disclosure, to the technical side in the embodiment of the present disclosure
Case is clearly and completely described, it is clear that described embodiment is only the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the disclosure, this area is general
The every other embodiment that logical technical staff is obtained under the premise of creative work is not made,
Belong to the scope of disclosure protection.
The partial words referred in the embodiment of the present invention are illustrated below.
Roadside unit RSU (Road Side Unit) is drive-in toll ETC (Electronic
Toll Collection) in system, installed in trackside, using DSRC (Dedicated Short Range
Communication) technology, with vehicle carried electronic label (OBU, the On on vehicle
Board Unit) communicated, realize testing vehicle register identification, electronics deduction of points, the dress of automatic fee
Put.
Fig. 1 shows the multiple antennas under a kind of multilane free flow that one embodiment of the invention is provided
The schematic flow sheet of associated working method, as shown in figure 1, a kind of multilane of the present embodiment is certainly
By the multiple antennas associated working method for flowing down, when having detected vehicle and having sailed default communication zone into,
The vehicle carried electronic label OBU of the vehicle is waken up, and performs following steps：
What more than one roadside unit RSU was received in the default communication zone of S1, basis is described
The uplink information that OBU sends, determines the positional information of the OBU.
It is understood that in this example, the design of RSU follows standard GB/T 20851,
Communication frequency is 5.8GHz.In addition, as shown in figure 4, workspace 1 is the work of RSU1
Make region, workspace 2 is the working region of RSU2.The workspace 1 of RSU1 covers it and is pacified
The track 1 of dress, and it is no more than 1m with the lap of workspace 2 of adjacent R SU2.
Further, in the present embodiment, RSU has positioning function and trading function.Specifically
For, RSU have according to OBU send uplink information, the function of being positioned to OBU,
Also have and communicated with OBU, and then complete testing vehicle register identification, electronics deduction of points, pay automatically
The function of taking.
S2, the positional information according to the OBU, OBU described in distance to a declared goal it is nearest first
RSU sends downlink information to the OBU.
It is understood that according to the positional information of OBU, it may be determined that nearest apart from OBU
RSU.In general, the RSU nearest apart from OBU is that track where OBU is corresponding
RSU。
Specifically, as shown in figure 4, now OBU is nearest apart from OBU in track 1
RSU is mounted in the RSU1 in track 1.Thus, RSU1 is communicated with OBU, Xiang Qi
Send downlink information.
S3, judge in Preset Time preset communication zone in whether there is RSU to receive the OBU
The uplink information of transmission.
It is understood that to ensure the unimpeded of road traffic, the communication of RSU and OBU should
It is completed in a relatively short time, therefore should have periodically been detected whether in Preset Time
RSU receives the uplink information that the OBU sends.
Specifically, as shown in figure 4, RSU1, RSU2, RSU3 under multilane may
The upward signal of OBU replies can be received, if after OBU sends upward signal, many cars
RSU1, RSU2, RSU3 under road receive the uplink information that the OBU sends, now,
Step S1-S3 is continued executing with, until the communication of the RSU in the OBU and default communication zone
Terminate.
The multiple antennas joint that the present embodiment starts under multilane is received, and efficiently solves market top
Divide and do not receive the up letters of OBU because OBU transmitting upward signal deviations are just often resulting in track antenna
Number problem, on the whole improve OBU vehicle transaction communications success rates.The present embodiment can be with
Improve multilane free flow process of exchange in occur lane change, jump a queue when OBU vehicles
Transaction communications success rate.
Fig. 2 shows many days under a kind of multilane free flow that another embodiment of the present invention is provided
The schematic flow sheet of line associated working method, as shown in Fig. 2 a kind of multilane of the present embodiment
Multiple antennas associated working method under free flow, default communication zone is sailed into when vehicle has been detected
When, the vehicle carried electronic label OBU of the vehicle is waken up, and perform following steps：
What more than one roadside unit RSU was received in the default communication zone of S21, basis is described
The uplink information that OBU sends, determines the positional information of the OBU.
It is understood that RSU is to orient beam control read-write antenna and rf control unit by high-gain
Composition.In the present embodiment, the multiple antennas include the RSU combinations of single goal positioning antenna,
Or the RSU combinations of Multi-target position antenna.
Alternatively, the S21 specifically includes following step S211-S212：
S211, send up to more than one RSU in default communication zone in the OBU
After information, the first position information that a RSU sends is received, the first position information is
What the uplink information that the OBU that one RSU is received according to it sends was obtained.
S212, according to the first position information, determine the positional information of the OBU.
Alternatively, the S21 specifically includes the following step of alternative step S211-S213
S211’-S213’：
S211 ', send up to more than one RSU in default communication zone in the OBU
After information, multiple second place information that multiple RSU sends, the multiple second are received
Confidence breath is obtained for multiple RSU according to the uplink information of its OBU transmission for receiving.
S212 ', the farthest value and most recent value removed in the multiple second place information, are gone
Except multiple second place information of farthest value most recent value；
S213 ', multiple second place information of the farthest value most recent value of the removal are averaging, really
The positional information of the fixed OBU.
S22, the positional information according to the OBU, OBU described in distance to a declared goal it is nearest first
RSU sends downlink information to the OBU.
It is understood that according to the positional information of OBU, it may be determined that nearest apart from OBU
RSU.In general, the RSU nearest apart from OBU is that track where OBU is corresponding
RSU。
Specifically, as shown in figure 5, now OBU is nearest apart from OBU in track 1
RSU is mounted in the RSU1 in track 1.Thus, RSU1 is communicated with OBU, Xiang Qi
Send downlink information.
S23, judge to be preset in Preset Time in communication zone whether to have RSU to receive described
The uplink information that OBU sends.
It is understood that the S23 specifically includes following step：
Whether judge to be preset in Preset Time in communication zone has RSU to receive the OBU hairs
The uplink information for sending, if so, then continue executing with step S21-S23, until the OBU with it is pre-
If the sign off of the RSU in communication zone；
Otherwise, a 2nd RSU RSU nearest described in distance to a declared goal sends to the OBU
Downlink information, and judge to be preset in Preset Time in communication zone whether to have RSU to receive described
The uplink information that OBU sends.
Further, in the case where a RSU nearest apart from the OBU sends to the OBU
After row information, if no RSU in communication zone is preset in Preset Time receives the OBU
The uplink information of transmission, now, judges that a RSU sends descending letter to the OBU
Whether the number of times of breath exceedes preset times value, if it is not, then continuing to specify a RSU to institute
State OBU and send downlink information, otherwise, the 2nd RSU nearest RSU described in distance to a declared goal
Downlink information is sent to the OBU.
It is understood that in the communication process of RSU and OBU, each RSU is to institute
State OBU and send the number of times of same frame downlink information all no more than preset times value, it is preferable that
The span of the preset times value is 3-5 times.
If twoth RSU nearest apart from a RSU sends downlink information to the OBU
Afterwards, RSU in communication zone is preset in Preset Time and is not received by what the OBU sent
Uplink information, then the 3rd RSU the 2nd RSU nearest described in distance to a declared goal sent out to the OBU
Send downlink information.
It is understood that in the communication process of RSU and OBU, attempting being sent to OBU
The RSU of same frame downstream signal is no more than predetermined number value, it is preferable that the predetermined number
The value of value is 3.
Specifically, in actual life, OBU has that directional diagram deviates normal direction,
Additionally, being likely to influence the directional diagram of OBU when lane change.Fig. 4, Fig. 5, Fig. 6 are
Three kinds of situations of the present embodiment concrete application：
As shown in figure 4, the OBU directional diagrams presence of vehicle is slightly away from asking for normal direction in figure
Topic, now, directional diagram cover simultaneously RSU1 and RSU2 can communication zone, and be partial to
RSU2。
As shown in figure 5, in figure there is asking for substantial deviation normal direction in the OBU directional diagrams of vehicle
Topic, now, what directional diagram only covered RSU2 can communication zone.
As shown in fig. 6, the OBU directional diagrams of vehicle are slightly away from normal direction and across road in figure,
When having just enter into track 2 its directional diagram cover simultaneously RSU1 and RSU2 can the comunication area, and partially
To in RSU2, when track 2 is sailed into, its directional diagram is while covering RSU2's and RSU3 can
Communication zone, and it is partial to RSU3.
It is understood that all antennas in communication zone are likely to receive OBU hairs
The upward signal for sending, and communication zone is limited by the transmission power of RSU, OBU and receives sensitive
Degree.In Fig. 4, Fig. 5, Fig. 6, the RSU under multilane sends upward signal according to OBU
Determine the positional information of OBU, RSU controllers obtain OBU in track according to the positional information
On 1, now, the RSU nearest apart from OBU is mounted in the RSU1 in track 1, thus,
RSU1 sends downstream signal to OBU.
The direction of transmitting with the reception of OBU is consistent, as shown in figure 5, in OBU directions
Figure completely offsets from RSU1, and during covering RSU2, in such cases, OBU cannot be received
The downstream signal that RSU1 sends, so that OBU also will not send next to the RSU under multilane
Frame upward signal.Now, the RSU under multilane and OBU communication disruptions.
RSU controller distance to a declared goal RSU1 nearest RSU2 sends downlink information to OBU,
The direction of transmitting with the reception of OBU is consistent, in the feelings of OBU directions map combinings RSU2
Under condition, OBU receives the downstream signal of RSU2 transmissions, so that OBU is under multilane
RSU sends next frame upward signal.Now, the RSU under multilane communicates with OBU is carried out
In.
The multiple antennas joint that the present embodiment starts under multilane is received, and efficiently solves market top
Divide and do not receive the up letters of OBU because OBU transmitting upward signal deviations are just often resulting in track antenna
Number problem, on the whole improve OBU vehicle transaction communications success rates.The present embodiment can be with
Improve multilane free flow process of exchange in occur lane change, jump a queue when OBU vehicles
Transaction communications success rate.
Fig. 3 shows the multiple antennas under a kind of multilane free flow that one embodiment of the invention is provided
The structural representation of associated working system, as shown in figure 3, a kind of multilane of the present embodiment is certainly
By the multiple antennas associated working system 30 for flowing down, the system includes：
Position units 31, for the institute received according to more than one RSU in default communication zone
The uplink information of OBU transmissions is stated, the positional information of the OBU is determined；
Designating unit 32, the positional information of the OBU for being determined according to the position units 31,
OBU described in a distance to a declared goal nearest RSU sends downlink information to the OBU；
Whether judging unit 33, judging to be preset in communication zone in Preset Time has RSU to receive
The uplink information that the OBU sends.
In multiple antennas associated working system under the multilane free flow that another embodiment is provided,
The designating unit, is additionally operable to,
After a RSU sends downlink information to the OBU, judging unit judges
When receiving the uplink information that the OBU sends without RSU in default communication zone, specify
Twoth RSU nearest apart from a RSU sends downlink information to the OBU.
The judging unit, is additionally operable to,
After the 2nd RSU sends downlink information to the OBU, default communication is judged
Whether there is RSU to receive the uplink information that the OBU sends in region.
The multiple antennas joint that the present embodiment starts under multilane is received, and efficiently solves market top
Divide and do not receive the up letters of OBU because OBU transmitting upward signal deviations are just often resulting in track antenna
Number problem, on the whole improve OBU vehicle transaction communications success rates.The present embodiment can be with
Improve multilane free flow process of exchange in occur lane change, jump a queue when OBU vehicles
Transaction communications success rate.
One of ordinary skill in the art will appreciate that：Various embodiments above is only used to illustrate the present invention
Technical scheme, rather than its limitations；Although being carried out to the present invention with reference to foregoing embodiments
Detailed description, it will be understood by those within the art that：It still can be to foregoing each
Technical scheme described in embodiment is modified, or special to which part or whole technologies
Levying carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution
Depart from the scope of the claims in the present invention.
Claims (10)
1. a kind of multiple antennas associated working method under multilane free flow, it is characterised in that when
When having detected vehicle and sailing default communication zone into, the vehicle carried electronic label of the vehicle is waken up
OBU, and perform following steps：
What more than one roadside unit RSU was received in the default communication zone of S1, basis is described
The uplink information that OBU sends, determines the positional information of the OBU；
S2, the positional information according to the OBU, OBU described in distance to a declared goal it is nearest first
RSU sends downlink information to the OBU；
S3, judge in Preset Time preset communication zone in whether there is RSU to receive the OBU
The uplink information of transmission；If so, then continue executing with step S1-S3, until the OBU with it is pre-
If the sign off of the RSU in communication zone.
2. method according to claim 1, it is characterised in that according to default communication zone
The uplink information that the OBU that interior more than one RSU is received sends, determines the OBU
Positional information, including：
The OBU to more than one RSU in default communication zone send uplink information it
Afterwards, the first position information that a RSU sends is received, the first position information is a RSU
What the uplink information that the OBU received according to it sends was obtained；
According to the first position information, the positional information of the OBU is determined.
3. method according to claim 1, it is characterised in that according to default communication zone
The uplink information that the OBU that interior more than one RSU is received sends, determines the OBU
Positional information, including：
The OBU to more than one RSU in default communication zone send uplink information it
Afterwards, multiple second place information that multiple RSU sends, the multiple second place information are received
It is that the uplink information that the OBU that multiple RSU are received according to it sends is obtained；
According to the multiple second place information, the positional information of the OBU is determined.
4. method according to claim 3, it is characterised in that described according to the multiple
Second place information, determines the positional information of the OBU, including：
The farthest value and most recent value in the multiple second place information are removed, removal is obtained farthest
It is worth multiple second place information of most recent value；
Multiple second place information of the farthest value most recent value of the removal are averaging, it is determined that described
The positional information of OBU.
5. method according to claim 1, it is characterised in that judge pre- in Preset Time
If whether there is RSU to receive the uplink information that the OBU sends, the side in communication zone
Method also includes：
If it is not, the 2nd RSU then a RSU nearest described in distance to a declared goal sends out to the OBU
Downlink information is sent, and judges preset whether communication zone is interior has RSU to receive institute in Preset Time
State the uplink information of OBU transmissions.
6. method according to claim 5, it is characterised in that the judgement Preset Time
Whether there is RSU to receive the uplink information that the OBU sends in interior default communication zone, tool
Body is：
After a RSU sends downlink information to the OBU, default communication is judged
Whether there is RSU to receive the uplink information that the OBU sends in region；
If it is not, then judging that a RSU is to the number of times that the OBU sends downlink information
It is no more than preset times value, if it is not, then continue specify a RSU sent out to the OBU
Downlink information is sent, otherwise, the 2nd RSU nearest RSU is to described described in distance to a declared goal
OBU sends downlink information.
7. according to any described methods of claim 1-6, it is characterised in that the multiple antennas
RSU combinations including single goal positioning antenna, or the RSU of Multi-target position antenna is combined.
8. a kind of multiple antennas associated working system under multilane free flow, it is characterised in that institute
The system of stating includes：
Position units, for according to more than one RSU is received in default communication zone
The uplink information that OBU sends, determines the positional information of the OBU；
Designating unit, the positional information of the OBU for being determined according to the position units is specified
A RSU nearest apart from the OBU sends downlink information to the OBU；
Whether judging unit, judging to be preset in communication zone in Preset Time has RSU to receive institute
State the uplink information of OBU transmissions.
9. system according to claim 8, it is characterised in that the designating unit, also
For,
After a RSU sends downlink information to the OBU, judging unit judges
When receiving the uplink information that the OBU sends without RSU in default communication zone, specify
Twoth RSU nearest apart from a RSU sends downlink information to the OBU.
10. system according to claim 9, it is characterised in that the judging unit,
It is additionally operable to,
After the 2nd RSU sends downlink information to the OBU, default communication is judged
Whether there is RSU to receive the uplink information that the OBU sends in region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971363.4A CN106910256B (en) | 2015-12-22 | 2015-12-22 | A kind of multiple antennas under multilane free flow works together method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971363.4A CN106910256B (en) | 2015-12-22 | 2015-12-22 | A kind of multiple antennas under multilane free flow works together method and system |
Publications (2)
| Publication Number | Publication Date |
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| CN106910256A true CN106910256A (en) | 2017-06-30 |
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| CN110047159A (en) * | 2019-04-22 | 2019-07-23 | 深圳成有科技有限公司 | Improve the method, device and equipment of free flow charge transaction success rate |
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| CN112734960A (en) * | 2020-12-30 | 2021-04-30 | 北京万集智能网联技术有限公司 | Road side unit, method and computer readable storage medium for ETC system |
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