CN105741365B - A kind of anti-interference with vehicle method of commerce, roadside unit and transaction system - Google Patents
A kind of anti-interference with vehicle method of commerce, roadside unit and transaction system Download PDFInfo
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- CN105741365B CN105741365B CN201610055160.5A CN201610055160A CN105741365B CN 105741365 B CN105741365 B CN 105741365B CN 201610055160 A CN201610055160 A CN 201610055160A CN 105741365 B CN105741365 B CN 105741365B
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- transmission power
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- roadside unit
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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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- Devices For Checking Fares Or Tickets At Control Points (AREA)
Abstract
The present invention relates to a kind of anti-interference with vehicle method of commerce, roadside unit and transaction systems, which includes: step of transmitting: roadside unit is with the first transmission power transmitting search signal;Receiving step: it is to be received in preset duration etc., until receiving the feedback signal that OBU entrained by the vehicle in roadside unit coverage area is sent;Transaction step: current transmission power is reduced to the second transmission power by the first transmission power, and the transaction with the OBU is completed with the second transmission power.Using technical solution of the present invention, it can avoid interference with vehicle, the accuracy and success rate of transaction improved, to improve the satisfaction of user experience.
Description
Technical field
The present invention relates to the fields intelligent transportation (Intelligent Transportation System, ITS), more specifically
Ground says, is related to a kind of anti-interference with vehicle method of commerce, roadside unit and transaction system.
Background technique
In parking lot or highway ETC (Electronic Toll Collection, electric non-stop toll) system
Application in, when certain moment outlet or entrance vehicle it is more when, will have the feelings that vehicle is followed tighter
Condition.So in actual application, the OBU (On board Unit, on board unit) of subsequent vehicle there is, before interfering with
The transaction of face vehicle OBU, the problem of leading to transaction errors, referred to as interference with vehicle problem.For example, at a time, being loaded with OBU's
Vehicle 2 is followed behind vehicle 1, reaches Entrance, the RSU of entrance may first search OBU2, and (performance of OBU2 refers to
Mark may be better than OBU1, or is mounted so as to standardize than OBU1), OBU1 is searched again for, then RSU just first trades with OBU2, is opened
It is vehicle 1 that lock, which has been released,.At this time for vehicle 2 close to gate, RSU discovery is again OBU2, will lead to vehicle 2 into not, and
1 admission of vehicle, entrance have but saved the information at vehicle 2.Transaction success rate and accuracy have been seriously affected, thread alternating money etc. is caused
Problem, to influence user experience.
Summary of the invention
In view of this, the present invention provides a kind of anti-interference with vehicle method of commerce, solve in parking lot or highway ETC
In, since vehicle follows tightlier to cause the problem of interfering with each other of trading.It ensure that the situation for following tighter when vehicle
Under, roadside unit wrong will not trade with subsequent OBU.The accuracy and success rate for improving transaction, to improve use
The satisfaction of family experience.
A kind of anti-interference with vehicle method of commerce, comprising:
Step of transmitting: roadside unit is with the first transmission power transmitting search signal;
Receiving step: it is to be received in preset duration etc., until the vehicle received in roadside unit coverage area is taken
The feedback signal that the OBU of band is sent;
Transaction step: current transmission power is reduced to the second transmission power by the first transmission power, and with the second transmitting
Power is completed and the transaction of the OBU.
Preferably, after the transaction step further include:
Lifting step: current transmission power is improved by the second transmission power to the first transmission power.
Preferably, second transmission power is 18.5~20.5dbm.
Preferably, first transmission power is 21dbm~23dbm.
Preferably, the radiation of power range of second transmission power are as follows: 6 meters long, wide 2 meters of elliptical region.
Preferably, before the step of transmitting further include:
Wake-up step: judging whether to receive wake-up signal, if so, starting to execute the step of transmitting, wherein described
Wake-up signal detects for detection device is sent to the roadside unit after vehicle enters this lane;
After the lifting step further include:
Sleep step: enter dormant state.
Preferably, the detection device detects that vehicle enters this lane method particularly includes:
The ground induction coil detection vehicle for being set to this lane, which drives into this lane, leads to electromagnetic change;Or,
The camera for covering this lane judges that vehicle drives into this lane by dynamic detection;Or,
Laser detector detects that vehicle drives into this lane.
The present invention also provides a kind of roadside units of anti-interference with vehicle characterized by comprising
Transmitting module, for the first transmission power transmitting search signal;
Receiving module, for be received in preset duration etc., until receiving the vehicle in roadside unit coverage area
The feedback signal that entrained OBU is sent;
Transaction modules, for current transmission power to be reduced to the second transmission power by the first transmission power, and with second
Transmission power is completed and the transaction of the OBU.
Preferably, further includes:
Hoisting module, for after completing transaction, current transmission power to be improved by the second transmission power to the first transmitting
Power.
The present invention also provides a kind of ETC transaction systems of anti-interference with vehicle, which is characterized in that is set to including at least one
Interior OBU, the roadside unit described at least more than one.
Based on the above-mentioned technical proposal, after roadside unit receives the feedback signal of OBU transmission, dynamic reduces transmission power,
Transmission power reduce after, still can guarantee with current OBU complete trade, and will not be radiated followed by vehicle,
To avoid interference with vehicle, the accuracy and success rate of transaction are improved, to improve the satisfaction of user experience.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart of anti-interference with vehicle method of commerce embodiment one provided by the invention;
Fig. 2 is the schematic diagram that transmission power reduces front and back radiation of power range;
Fig. 3 is a kind of building-block of logic of the roadside unit embodiment one of anti-interference with vehicle provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is a kind of flow chart of anti-interference with vehicle method of commerce embodiment one provided by the invention, which prevents
Interference with vehicle method of commerce includes:
S10. step of transmitting: roadside unit is with the first transmission power transmitting search signal;
It should be understood that can complete to trade relatively early when in order to guarantee that OBU reaches out inbound in the application of ETC, it is suitable
Benefit is current, and the transmission power of general roadside unit can be radiated apart from 10 meters of antenna or even farther distance.For example,
In one embodiment, the first transmission power of roadside unit is 21dbm~23dbm, when the mounting height of roadside unit is 2.5m,
Setting angle be 55 degree, and for side dress when, radiation of power range are as follows: grow 9 meters, wide 2.5 meters of elliptical region, such as Fig. 2 institute
Show, in this way when vehicle reaches in the region, roadside unit can wake up OBU in advance.Therefore it is somebody's turn to do when the vehicle for carrying OBU enters
When region, the search signal of roadside unit transmitting can be received, and then return feedback signal can be corresponded to.
S20. receiving step: it is to be received in preset duration etc., until receiving the vehicle in roadside unit coverage area
The feedback signal that entrained OBU is sent;
S30. transaction step: current transmission power is reduced to the second transmission power by the first transmission power, and with second
Transmission power is completed and the transaction of the OBU.
It should be understood that it is 10 meters that coverage area when due to roadside unit transmitting search signal, which prolongs lane length, even
It is farther.So when two cars follow closer, in fact it could happen that the case where there are two OBU in coverage area, due to the performance of OBU
It is different, it may cause two OBU and interfere with each other.Thus the present invention is after receiving feedback signal, by current transmission power by the
One transmission power is reduced to the second transmission power, for example, in one embodiment, roadside unit is by current transmission power by first
Transmission power 21dbm~23dbm reduces by 5 grades (2.5dbm), that is, it is reduced to second 18.5~20.5dbm of transmission power, at this point,
The radiation of power range of second transmission power are as follows: 6 meters long, wide 2 meters of elliptical region, the region is reduced less than transmission power
Preceding radiation areas, as shown in Figure 2.After roadside unit reduces transmission power, into trade mode, at this point, having following two
Kind situation: if the feedback signal 1) received is current OBU, (closest to the OBU of gate) is returned, roadside unit drop
After low transmitting power, the vehicle due to loading OBU continues to go ahead, moreover, the transaction threshold power of OBU, which is less than, wakes up power,
So still being able to continue to communicate with current OBU although roadside unit reduces transmission power, transaction flow is completed, and will not
Be radiated followed by vehicle OBU;2) if the not current OBU of the feedback signal received is returned, but is followed at it
What the OBU of subsequent vehicle was returned, then, roadside unit reduce transmission power after, although the vehicle for loading the OBU continue it is past
Before walk, still, since the radiation scope of the second transmission power becomes smaller, the OBU is very big not to be communicated with roadside unit
, i.e., enabled communication, signal is also unstable, to make roadside unit that can not complete to trade with the OBU, so that it is dry to solve follow the bus
The problem of disturbing.
Further, after transaction step, may also include that
Lifting step: current transmission power is improved by the second transmission power to the first transmission power, that is, completed in transaction
Afterwards, restore to original transmission power, communicated with the OBU with subsequent vehicle.
Still further, before step of transmitting, further includes:
Wake-up step: judging whether to receive wake-up signal, if so, starting to execute the step of transmitting, wherein described
Wake-up signal detects for detection device is sent to the roadside unit after vehicle enters this lane;
It should be understood that roadside unit is in suspend mode, that is, roadside unit is not sent out when not having vehicle to pass through website
Signal avoids roadside unit in the case where this lane does not have vehicle, disturbs other roadside units to work nearby.
After detection device detects that vehicle enters this lane, wake-up signal is sent to roadside unit, wherein detection device
It detects vehicle and enters this lane concrete mode are as follows: the ground induction coil detection vehicle for being set to this lane, which drives into this lane, leads to electromagnetism
Variation;Or, the camera for covering this lane judges that vehicle drives into this lane by dynamic detection;Or, laser detector detects
Vehicle drives into this lane.
After roadside unit receives the wake-up signal of detection device transmission, into search pattern, that is, start to send search
Signal BST carries out the search of OBU.
After lifting step, further includes:
Sleep step: enter dormant state.
It should be understood that roadside unit after promoting transmission power, if being not received by new wake-up signal, enters and stops
Dormancy state, dormant state refer to that the roadside unit does not execute step of transmitting, receiving step or transaction step.
Fig. 3 is a kind of building-block of logic of the roadside unit embodiment one of anti-interference with vehicle provided by the invention, the implementation
The roadside unit of example includes: transmitting module 10, receiving module 20 and transaction modules 30, wherein transmitting module 10 is used for first
Transmission power transmitting search signal;Receiving module 20 is covered for be received in preset duration etc. until receiving roadside unit
The feedback signal that OBU entrained by vehicle within the scope of lid is sent;Transaction modules 30 are used for current transmission power by the first hair
It penetrates power and is reduced to the second transmission power, and the transaction with the OBU is completed with the second transmission power.
Preferably, the roadside unit road of anti-interference with vehicle of the invention may also include hoisting module, which is used for
After completing transaction, current transmission power is improved by the second transmission power to the first transmission power.
Still further, the roadside unit road of anti-interference with vehicle of the invention may also include wake-up module and sleep block.
Wherein, wake-up module is used for when receiving wake-up signal, starts to activate transmitting module, wherein the wake-up signal is detection
Device, which detects, is sent to the roadside unit after vehicle enters this lane;Sleep block, for being mentioned in current transmission power
After rising, into dormant state.
In addition, the present invention also constructs a kind of ETC transaction system of anti-interference with vehicle, car is set to including at least one
OBU, at least one roadside unit as described above, and make for sending wake-up signal when detecting that vehicle enters this lane
Roadside unit enters the detection device of working condition.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of anti-interference with vehicle method of commerce characterized by comprising
Step of transmitting: roadside unit with the first transmission power transmitting search signal, first transmission power be 21dbm~
23dbm;
Receiving step: it is to be received in preset duration etc., until receiving entrained by the vehicle in roadside unit coverage area
The feedback signal that OBU is sent;
Transaction step: current transmission power is reduced to the second transmission power by the first transmission power, and with the second transmission power
It completes and the transaction of the OBU, second transmission power is 18.5~20.5dbm.
2. anti-interference with vehicle method of commerce according to claim 1, which is characterized in that also wrapped after the transaction step
It includes:
Lifting step: current transmission power is improved by the second transmission power to the first transmission power.
3. anti-interference with vehicle method of commerce according to claim 1, which is characterized in that the power of second transmission power
Radiation scope are as follows: 6 meters long, wide 2 meters of elliptical region.
4. anti-interference with vehicle method of commerce according to claim 2, which is characterized in that
Before the step of transmitting further include:
Wake-up step: judging whether to receive wake-up signal, if so, starting to execute the step of transmitting, wherein the wake-up
Signal detects for detection device is sent to the roadside unit after vehicle enters this lane;
After the lifting step further include:
Sleep step: enter dormant state.
5. anti-interference with vehicle method of commerce according to claim 4, which is characterized in that the detection device detects vehicle
Into this lane method particularly includes:
The ground induction coil detection vehicle for being set to this lane, which drives into this lane, leads to electromagnetic change;Or,
The camera for covering this lane judges that vehicle drives into this lane by dynamic detection;Or,
Laser detector detects that vehicle drives into this lane.
6. a kind of roadside unit of anti-interference with vehicle characterized by comprising
Transmitting module, for the first transmission power transmitting search signal, first transmission power to be 21dbm~23dbm;
Receiving module, for be received in preset duration etc., until the vehicle received in roadside unit coverage area is taken
The feedback signal that the OBU of band is sent;
Transaction modules, for current transmission power to be reduced to the second transmission power by the first transmission power, and with the second transmitting
Power is completed and the transaction of the OBU, and second transmission power is 18.5~20.5dbm.
7. the roadside unit of anti-interference with vehicle according to claim 6, which is characterized in that further include:
Hoisting module, for after completing transaction, current transmission power to be improved by the second transmission power to the first transmission power.
8. a kind of ETC transaction system of anti-interference with vehicle, which is characterized in that be set to interior OBU including at least one, at least
One roadside unit as claimed in claims 6 or 7.
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CN107909814A (en) * | 2017-11-06 | 2018-04-13 | 胡晓华 | A kind of highway congestion determination methods |
CN111047724B (en) * | 2019-11-11 | 2021-12-28 | 深圳市金溢科技股份有限公司 | Readable storage medium, path identification system, vehicle-mounted unit and transaction method |
CN110996267B (en) * | 2019-12-10 | 2021-11-23 | 北京聚利科技有限公司 | Method and device for identifying OBU |
CN112967409B (en) * | 2021-02-03 | 2023-02-17 | 北京千方科技股份有限公司 | Anti-collision method and system for ETC information transmission |
CN115131890A (en) * | 2021-03-26 | 2022-09-30 | 华为技术有限公司 | Traffic control method and device |
CN114038076B (en) * | 2021-11-12 | 2024-02-06 | 上汽通用五菱汽车股份有限公司 | ETC misreading prevention method and device, vehicle-mounted OBU and readable storage medium |
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CN2840200Y (en) * | 2005-11-14 | 2006-11-22 | 广州华工信息软件有限公司 | A kind of dual communication area electronic non-parking the lane in which the drivers should pay fees system |
JP2008167139A (en) * | 2006-12-28 | 2008-07-17 | Denso Corp | Road machine group system and road machine |
CN101510319B (en) * | 2009-03-06 | 2011-04-27 | 广州华工信息软件有限公司 | Multi-business zone electronic fee-charging roadway system and fee charging method thereof |
CN101996424B (en) * | 2009-08-25 | 2012-07-18 | 中兴通讯股份有限公司 | Method for realizing electronic toll collection |
CN101872495B (en) * | 2010-06-17 | 2012-12-05 | 北京万集科技股份有限公司 | Road measuring method, device and non-stop charging system |
CN102104400B (en) * | 2011-02-15 | 2013-11-27 | 深圳市金溢科技有限公司 | Communication method for on-vehicle unit and roadside base station in ambiguous path identification system |
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CN104574544B (en) * | 2014-12-31 | 2017-04-26 | 深圳市金溢科技股份有限公司 | Method for communicating with OBU and RSU |
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