CN103514750B - It is anti-with car interference method, device and application system based on DSRC - Google Patents
It is anti-with car interference method, device and application system based on DSRC Download PDFInfo
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- CN103514750B CN103514750B CN201210199032.XA CN201210199032A CN103514750B CN 103514750 B CN103514750 B CN 103514750B CN 201210199032 A CN201210199032 A CN 201210199032A CN 103514750 B CN103514750 B CN 103514750B
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Abstract
This application discloses a kind of anti-with car interference method, device and DSRC application systems based on DSRC.Method is comprised the following steps：Signal receives step：RSU is received includes an OBU, the microwave signal that multiple OBU of the 2nd OBU send；Positioning step：RSU obtains the location information of each OBU according to each microwave signal；Comparison step：By the location information of relatively more each OBU, RSU selects the OBU of priority treatment from the OBU.The application is applied to highway communication field, effective identification has been carried out to the front and back position of vehicle by vehicle positioning technology, so as to accurately select the OBU of priority treatment and carry out priority treatment to the vehicle with the OBU, the OBU on other vehicles is set not produce interference to the normal interaction process between the OBU of priority treatment and RSU, so as to efficiently solve vehicle with car interference problem, reduce the probability of error handle.
Description
Technical field
The application is related to intelligent transportation（ITS：Intelligent Transportation System）Field, especially relates to
And it is a kind of based on DSRC（DSRC：Dedicated Short Range Communications）It is anti-with car interference
Method, device and application system.
Background technology
Electric non-stop toll（ETC：Electronic Toll Collection）The DSRC application systems such as system are usual
Using DSRC key equipment roadside units（RSU：Road Side Unit）And board units（OBU：On-board Units）It is right
Vehicle is charged, detected or monitored, these systems in the process of running it sometimes appear that OBU signals with car interference problem：
After i.e. previous vehicle sails default transaction area into, beginning through its OBU and RSU carries out information exchange, now follows in the vehicle
Another vehicle below may can also enter transaction area, and send information to RSU by its OBU in the same time, to previous
Normal interaction process between OBU and RSU on vehicle produces interference, causes the processing procedure of DSRC application systems mistake occur
Or omit, such as such as in ETC system, these interference cause the generation of the phenomenons such as error in charging, detection mistake sometimes, right
Some vehicles are repeated to charge, and some vehicles are not charged.
In order to ensure the normal operation of DSRC application systems, it would be highly desirable to solve anti-with car interference problem.
The content of the invention
The application provides a kind of anti-with car interference method, device and DSRC application systems based on DSRC.
According to the application's in a first aspect, the application protection is a kind of to prevent with car interference method including following based on DSRC
Step：
Signal receives step：RSU is received includes an OBU, the microwave signal that multiple OBU of the 2nd OBU send；
Positioning step：RSU obtains the location information of each OBU according to each microwave signal；
Comparison step：By the location information of relatively more each OBU, RSU selects the OBU of priority treatment from the OBU.
In a kind of embodiment, in the comparison step, RSU selects the concrete mode of the OBU of priority treatment from the OBU
For, from the OBU RSU described in chosen distance nearest OBU as priority treatment OBU；Also wrapped after the comparison step
Include transaction step：RSU is preferential to send charge instruction to the OBU of the priority treatment.
In a kind of embodiment, after the OBU of the priority treatment is selected in the comparison step, always according to other OBU and RSU
The distance between to described other OBU by closely to being far ranked up；In the transaction step, RSU also to described other OBU according to
By closely sending charge instruction successively to remote order.
In a kind of embodiment, RSU outdoor units position coordinates in a first direction is 0, in the positioning step, first
The location information of OBU includes that the location information of the position coordinates y1, the 2nd OBU of first direction includes the position coordinates of first direction
y2；In the comparison step, if | y1 |<| y2 |, then select the OBU that an OBU is the priority treatment, if | y1 |>|y2
|, then select the OBU that the 2nd OBU is the priority treatment.
In a kind of embodiment, RSU outdoor units are all in a first direction 0, the positioning with the position coordinates of second direction
In step, the location information of an OBU includes the position coordinates y1 of the first direction and position coordinates x1 of second direction, second
The position coordinates y2 of the location information of OBU including the first direction and position coordinates x2 of second direction, wherein, first direction and the
Two directions are vertical；In the comparison step, ifThen the first OBU of selection is the preferential place
The OBU of reason, ifThen the 2nd OBU of selection is the OBU of the priority treatment.
In a kind of embodiment, the positioning step uses phase difference positioning mode.
According to the second aspect of the application, the application protects a kind of preventing with car countermeasure set based on DSRC, including
RSU, the RSU includes：
Signal receiving module：Include the microwave signal of an OBU, multiple OBU transmissions of the 2nd OBU for receiving；
Locating module：For the microwave signal sent according to each OBU, the location information of each OBU is obtained；
Comparison module：For the location information by relatively more each OBU, the OBU of priority treatment is selected from the OBU.
In a kind of embodiment, the comparison module is used for RSU described in chosen distance nearest OBU conducts from the OBU
The OBU of priority treatment；The RSU also includes transaction modules, for preferentially sending charge instruction to the OBU of the priority treatment.
According to the third aspect of the application, the application protects a kind of DSRC application systems, including above-described is based on
DSRC's is anti-with car countermeasure set.
In a kind of embodiment, the DSRC application systems are bicycle road band barrier machine ETC system, multilane band barrier machine
The free streaming system of ETC system, bicycle road or the free streaming system of multilane, the signal receiving module are arranged on the bicycle road band
On the corresponding track of barrier machine ETC system, multilane with barrier machine ETC system or the free streaming system of bicycle road, or it is arranged on many
On at least one of the free streaming system in track free flow section.
In a kind of embodiment, the DSRC system include vehicle detecting system, vehicle speed measuring system, model recognition system,
At least one of image identification system, video capture system.
The beneficial effect of the application is：The application is applied to highway communication field, is selected by vehicle location and location comparison
OBUs of the OBU on suitable vehicle as priority treatment is selected, effective identification of vehicle front and back position is realized, then RSU can be first
First the OBU of priority treatment is charged or the treatment of other forms is carried out to the vehicle with the OBU, to other OBU or band
The vehicle for having other OBU is not processed temporarily, makes the OBU on other vehicles can't be between the OBU of priority treatment and RSU
Normal interaction process produce interference, so as to efficiently solve vehicle with car interference problem.And the application is according to each OBU's
Particular location selects the OBU of priority treatment, and such as chosen distance RSU is nearest, farthest or has specific range with RSU
OBU, is effectively improved the interference free performance of system in actual application, reduces the probability of error handle, it is ensured that DSRC
The normal operation of application system.
Brief description of the drawings
Fig. 1 is a kind of anti-flow chart with car interference method of embodiment of the application；
Fig. 2 is the side view that a kind of vehicle of embodiment of the application is located in RSU signal coverage areas；
Fig. 3 is a kind of reception antenna layout of the localization method of embodiment of the application；
Fig. 4 is a kind of anti-structured flowchart with car countermeasure set of embodiment of the application.
Specific embodiment
The application is described in further detail below by specific embodiment combination accompanying drawing.
In the embodiment of the present application, RSU is using the OBU's on multiple vehicles that location technology determines and RSU is interacted
Location information, so that it is determined that the position of each OBU, then suitable OBU is selected as priority treatment by comparing the position of each OBU
OBU, is charged to the OBU of the priority treatment or the treatment of other forms is carried out to the vehicle with the OBU, to other first
OBU or the vehicle with other OBU are not processed temporarily
Embodiment one：
The anti-information exchange being based on car interference method between RSU and OBU of the present embodiment.Wherein, RSU includes outdoor single
Unit and indoor unit, RSU outdoor units have dual-mode antenna, for sending microwave signal to OBU and receiving the microwave from OBU
Signal, RSU outdoor units are typically mounted on road top or sidepiece, and RSU indoor units are used to be controlled RSU outdoor units
And the reception of RSU outdoor units and the information for sending are processed；OBU also has antenna, for sending microwave signal simultaneously to RSU
The microwave signal from RSU is received, OBU is typically mounted in vehicle, for example, is fixed on the front windshield of vehicle.Refer to
Fig. 1 and Fig. 2, the method for the present embodiment mainly includes with step：
S101：After two vehicles all enter in the RSU signal coverage areas shown in dotted line, installed on the first vehicle
The wake-up signal that the OBU 2 installed on the vehicles of OBU 1 and second is periodically sent by RSU wakes up, and two OBU send to RSU
Answer signal between RSU so that set up communication link.
S102：By taking the first vehicle as an example, RSU sends microwave signal to OBU 1, and request data is carried in the microwave signal
Frame, the particular content of the request data frame as needed depending on, be generally used for asking OBU 1 to return to certain information, example to RSU
Request data frame such as the present embodiment is used to ask information of vehicles（Including license plate number, vehicle model, vehicle color etc. in information
One or more）.
S103：After OBU 1 receives the microwave signal of RSU, it is parsed, RSU institutes are then obtained by internal calculation
The information of vehicles of request is simultaneously packaged into reply data frame, then returns to microwave signal B to RSU, and microwave signal B includes answer number
The information such as the ID according to frame and OBU 1.
S104：Signal receiving step, RSU receives the microwave signal B that OBU 1 is returned to RSU.
S105：Positioning step：RSU obtains reply data frame after being parsed to microwave signal B, and utilizes the microwave signal
The location information that B obtains OBU 1 is the location information of the first vehicle.In the present embodiment, RSU carries out both direction to OBU 1
Position and obtain the location information comprising two-dimensional coordinate, i.e., the location information of OBU 1 includes the positions in a first direction of OBU 1
The position coordinates x1 of coordinate y1 and second direction, wherein second direction and first direction in the plane of road surface and are mutually perpendicular to,
First direction is parallel with road bearing of trend, and second direction is vertical with road bearing of trend.Obtain the side of the location information of OBU 1
Method includes various, such as phase difference positioning mode or signal intensity positioning mode, and the former receives same using different reception antennas in RSU
Corresponding phase difference value is positioned to OBU 1 during microwave signal, when the latter receives microwave signal using reception antenna in RSU pair
The signal intensity size answered is positioned to OBU1.
The phase difference positioning mode of such as a kind of microwave signal is specially：
Fig. 3 is refer to, antenna is formed using the reception antenna 1, reception antenna 2, reception antenna 3 arranged on the same line
Group receives the microwave signal that same OBU sends, the distance between reception antenna 1 and reception antenna 2 d12<λ, reception antenna 1 with connect
Receive the distance between antenna 3 d13>Angle between the arrival bearing of the microwave signal that N λ, OBU send and aerial array normal is
The deflection of θ, i.e. microwave signal.When microwave signal arrives separately at three reception antennas, due to microwave signal and reception antenna it
Between distance it is distant, belong to reception antenna far-field region, therefore each reception antenna of arrival parallel equivalent to microwave signal, receive
Delayed phase of the microwave signal that antenna 2 is received than microwave signal that reception antenna 1 is receivedThat is reception antenna 2 is relative to connecing
Receive antenna 1 phase difference bePhase steric retardation of the microwave signal that reception antenna 3 is received than microwave signal that reception antenna 1 is received
AfterwardsI.e. reception antenna 3 is relative to the phase difference of reception antenna 1
Then（Formula one）
Then（Formula two）
Wherein,It is that phase difference is obtained by phase bit comparisonWhen the actual number of degrees, due toTherefore the numerical value has
There is uniqueness.
In order to determine N values, using equation below：
（Formula three）
In above formula, d12And d13, it is known thatActual read number can be obtained by phase bit comparison, andCan be according to formula three
Calculate.
In acceptable error range, if it is assumed that：
Then can obtain below equation to determine N with reference to formula three：
（Formula four）
ConsiderIn include error in signal receiving path caused by every treatment, calculated by formula three
Error value beError valueTherefore calculated by formula three and formula twoOnly approximately equal, it is impossible to
It is essentially equal, as long as calculateError in tolerance interval, it is possible to combine formula two and formula four obtain with
Lower formula determines θ：
（Formula five）
In above derivation, from formula two,Numerical value and assumption value between difference beN values are bigger, thenError amount it is smaller, but the excessive then d of N values13It is larger, cause the total length for positioning antenna to increase and be laid out difficulty, therefore can
3≤N≤10 are chosen, certain positioning precision can either be ensured, but convenient antenna is laid out.Finally, according to the numerical value of θ, with reference to each
The setting height(from bottom) and angle of reception antenna, calculate the location information of OBU, i.e., it is covered in front of RSU antennas orthogonal subpoints
The specific coordinate in region.
One-dimensional positioning can be carried out to OBU, according to upper type if being further added by one group of antenna vertical with above antenna sets
Group, two-dimensional localization can be carried out using same processing mode to OBU.
Similar to step S102 to step S105, RSU obtains OBU always according to OBU 2 to the microwave signal A that RSU is returned
2 location information is the location information of the second vehicle, including the OBU 2 position coordinates y2 in a first direction and second direction
Position coordinates x2.
S106：Comparison step, RSU compares the location information of OBU 1 and OBU 2, according to different selection strategy from two
Select the OBU of priority treatment in OBU, such as OBU chosen distance RSU nearest from two OBU as priority treatment OBU,
Or chosen distance RSU is farthest or the OBU with specific range is the OBU of priority treatment from two OBU.According to difference
Coordinate system, the comparative approach of the present embodiment has various, for example, be arranged on the installation site of RSU outdoor units according to Fig. 2
During the coordinate center of coordinate system, i.e., when position coordinates of the RSU outdoor units in a first direction with second direction is all 0, this step
In comparison procedure, ifShow OBU 2 apart from RSU outdoor unit relative closes, the first car
Follow in the second vehicle back or sidepiece, then it is the OBU of priority treatment to select OBU 2, if on the contrary,Show OBU 1 apart from RSU outdoor unit relative closes, the second vehicle is followed after the first vehicle
Face or sidepiece, then it is the OBU of priority treatment to select OBU 1.
S107：OBUs of the RSU to priority treatment or the vehicle with the OBU carry out corresponding priority treatment, for example, process
When mode is for transaction, RSU preferentially sends charge instruction and prepares to charge it to the OBU of priority treatment, certainly according to specific
Needs, RSU can also send other process instructions according to presupposed solution, for example process instruction can be instructed for detection, monitoring is instructed,
Photographing instruction etc., the treatment of other forms such as is respectively used to detect the first vehicle, monitors, takes pictures, now to other OBU
Or the vehicle with other OBU does not deal with temporarily.
In some embodiments, RSU can carry out information exchange with the OBU on multiple vehicles in each step of the above, receive each OBU
After the microwave signal of transmission, the location information of each OBU is obtained according to these microwave signals respectively, in the comparison step of step S106
In, RSU is again the OBU of priority treatment by the nearest OBU of the location information chosen distance RSU of relatively more each OBU, can also be according to excellent
The distance between other OBU and RSU beyond the OBU for first processing to other OBU by closely to being far ranked up, then in step
In the process step of S107, after RSU sends charge instruction to the OBU of priority treatment first, also to other OBU according to by closely to remote
Order send successively charge instruction, or in this place reason step RSU send other process instructions first according to presupposed solution
After carrying out the treatment of other forms to the vehicle of the OBU with priority treatment, then other process instructions are sent to other
The vehicle of OBU to remote order according to by closely being processed.
In practical application, the information exchange between RSU and each OBU may have multiple, the microwave that OBU sends to RSU
Signal correspondingly also has multiple, and these signals all include No. ID of OBU, and in order to reach the purpose of positioning, OBU sends to RSU
Microwave signal in, should at least have a microwave signal for positioning.
Embodiment two：
From unlike a upper embodiment, RSU only realizes a direction to the present embodiment during being positioned to OBU
Positioning, especially realize OBU and obtained comprising one-dimensional coordinate in the positioning of the first direction parallel to road bearing of trend
Location information, specifically, during the present embodiment is to the positioning step of OBU 1 and OBU 2, the location information for obtaining OBU 1 includes
The location information of the position coordinates y1, OBU 2 in a first direction of OBU 1 includes the position coordinates y2 of first direction, comparison step
In, if | y1 |>| y2 |, shows OBU2 apart from RSU outdoor unit relative closes, the first vehicle follow in the second vehicle back or
Sidepiece, then it is the OBU of priority treatment to select OBU 2, if on the contrary, | y1 |<| y2 |, shows OBU 1 apart from RSU outdoor units
Relative close, the second vehicle is followed in the first vehicle back or sidepiece, then it is the OBU of priority treatment to select OBU 1.
Embodiment three：
As shown in figure 4, the present embodiment is used to realize that embodiment one or anti-the interference with car based on DSRC of embodiment two fill
Put including RSU, RSU mainly includes signal receiving module 10, locating module 20, comparison module 30 and processing module 40.
Wherein signal receiving module 10 is arranged on RSU outdoor units, and it includes antenna, for receive include an OBU 1,
The microwave signal that multiple OBU of the 2nd OBU 2 send.
Locating module 20 is used for the microwave signal sent according to each OBU, obtains the location information of each OBU.According to positioning side
The difference of formula, locating module 20 can carry out the positioning in direction to OBU and obtain the location information comprising one-dimensional coordinate, also may be used
Carry out the positioning of both direction and obtain the location information comprising two-dimensional coordinate.
Comparison module 30 is used for the location information by relatively more each OBU, and the OBU of priority treatment, such as one are selected from OBU
In kind of embodiment, for the chosen distance RSU from OBU nearest OBU as priority treatment OBU.According to manner of comparison not
Together, comparison module 30 can carry out the location comparison in direction to OBU, can also carry out the location comparison of both direction.Some realities
Apply in example, when RSU and multiple OBU carry out information exchange, comparison module 30 can also be according to other beyond the OBU of priority treatment
The distance between OBU and RSU, to other OBU by closely to being far ranked up.
Processing module 40 is used to send process instruction to the OBU of priority treatment, or the vehicle with the OBU is carried out excellent
First process, processing module 40 can be all kinds of processing modules, such as transaction modules such as transaction modules, detection module or monitoring module,
For preferentially sending charge instruction to the OBU of priority treatment.In some embodiments, when RSU and multiple OBU carry out information exchange
When, processing module 40 can also send charge instruction to the OBU of priority treatment first according to the ranking results of comparison module 30
Afterwards, also instructed according to by closely sending charge successively to remote order to other OBU, or other places are sent according to presupposed solution
After reason instruction carries out the treatment of other forms to the vehicle of the OBU with priority treatment first, then send other process instructions
To the vehicle with other OBU according to by closely being processed to remote order.
The anti-of the application above example is widely portable to all kinds of DSRC application systems, such as bicycle with car interference method
Road band barrier machine ETC system, multilane band barrier machine ETC system, the free streaming system of bicycle road, the free streaming system of multilane, with
And for carrying out monitor in real time or in violation of rules and regulations vehicle speed measuring system, model recognition system, image identification system, the figure of inspection to vehicle
As various types of vehicles monitoring systems such as capturing systems.Wherein, signal receiving module is arranged on bicycle road band barrier machine ETC system, many
On corresponding track of the track with barrier machine ETC system or the free streaming system of bicycle road, or it is arranged in the free streaming system of multilane
At least one free flow section on, can accurately realize non-parking charge to vehicle nearest apart from RSU in transaction area, keep away
Exempt to follow the OBU on another vehicle of vehicle back to be produced to the normal interaction process between the OBU and RSU on previous vehicle dry
Disturb, so as to avoid the generation of error in charging, the detection phenomenon such as mistake, it is ensured that charge is normally carried out.
Above example two can be used for bicycle road DSRC application systems, the structure of RSU and the letter more relatively of information processing side
Single, cost is relatively low, and embodiment one can be used for bicycle road or multilane DSRC application systems, and recognition result is more accurate, reliable.
Monkey chatter method is easy to operate, processing speed is fast and accuracy is high for the application putting based on DSRC, due to it not
Change the area and quantity of transaction area, RSU can't be influenceed to the charge of vehicle or the normal handling process of other forms,
Speed will not be reduced, system cost will not be more significantly increased, therefore be widely portable to expressway tol lcollection, parking fee collective system etc.
Various highway communication fields.
It will be understood by those skilled in the art that all or part of step of various methods can be by journey in above-described embodiment
Sequence instructs related hardware to complete, and the program can be stored in a computer-readable recording medium, storage medium can include：
Read-only storage, random access memory, disk or CD etc..
Above content is the further description made to the application in conjunction with specific embodiments, it is impossible to assert the application
Specific implementation be confined to these explanations.For the application person of an ordinary skill in the technical field, do not departing from
On the premise of the application conceives, some simple deduction or replace can also be made.
Claims (9)
1. it is a kind of anti-with car interference method based on DSRC, it is characterised in that to comprise the following steps：
Signal receives step：Roadside unit is received includes the first board units, multiple board units of the second board units send
Microwave signal；
Positioning step：The microwave signal that roadside unit sends according to each board units, obtains each vehicle-mounted using phase difference positioning mode
The location information of unit；
Comparison step：By the location information of relatively more each board units, roadside unit is selected from preferential from the board units
The board units of reason；
The phase difference positioning mode is using corresponding phase difference when different reception antennas receive same microwave signal in roadside unit
Value is positioned to board units；Specially：
Antenna sets are formed using the reception antenna 1, reception antenna 2, reception antenna 3 arranged on the same line receive same vehicle-mounted
The microwave signal that unit sends；The distance between reception antenna 1 and reception antenna 2 are d12, reception antenna 1 and reception antenna 3 it
Between distance be d13；Delayed phase of the microwave signal that reception antenna 2 is received than microwave signal that reception antenna 1 is received
Delayed phase of the microwave signal that reception antenna 3 is received than microwave signal that reception antenna 1 is received
According to the d12、d13、WithCalculate arrival bearing and the aerial array method of the microwave signal that board units send
Angle theta between line；
According to the numerical value of θ, with reference to the setting height(from bottom) and angle of each reception antenna, the location information of board units is calculated.
2. the method for claim 1, it is characterised in that in the comparison step, roadside unit is from the board units
The concrete mode of the board units of middle selection priority treatment is that roadside unit described in chosen distance is nearest from the board units
Board units as priority treatment board units；Also include transaction step after the comparison step：Roadside unit is preferential
Charge instruction is sent to the board units of the priority treatment.
3. method as claimed in claim 2, it is characterised in that the vehicle-mounted list of the priority treatment is selected in the comparison step
After unit, always according to the distance between other board units and roadside unit to described other board units by closely to far arranging
Sequence；In the transaction step, roadside unit also to described other board units according to by closely sending charge successively to remote order
Instruction.
4. method as claimed in claim 2, it is characterised in that the roadside unit includes outdoor unit, the outdoor unit
Position coordinates in a first direction is 0, and in the positioning step, the location information of the first board units includes the position of first direction
Coordinate y1 is put, the location information of the second board units includes the position coordinates y2 of first direction；In the comparison step, if |
Y1 | ＜ | y2 |, then the board units that the first board units are the priority treatment are selected, if | y1 | ＞ | y2 |, select
Two board units are the board units of the priority treatment.
5. method as claimed in claim 2, it is characterised in that the roadside unit includes outdoor unit, the outdoor unit
The position coordinates with second direction is all 0 in a first direction, and in the positioning step, the location information of the first board units includes
The position coordinates y1 of the first direction and position coordinates x1 of second direction, the location information of the second board units includes first direction
Position coordinates y2 and second direction position coordinates x2, wherein, first direction is vertical with second direction, according to formulaDetermine arrival bearing and the antenna array of the microwave signal that board units send
Angle theta between row normal, wherein, d12＜ λ, d13＞ N λ, 3≤N≤10,In the comparison step,
IfThe board units that the first board units are the priority treatment are then selected, ifThen select the board units that the second board units are the priority treatment.
6. it is a kind of anti-with car countermeasure set based on DSRC, it is characterised in that including roadside unit, the trackside list
Unit includes：
Signal receiving module：For receive include the first board units, the second board units multiple board units transmission it is micro-
Ripple signal；
Locating module：For according to each microwave signal, the location information of each board units being obtained using phase difference positioning mode；It is described
Phase difference positioning mode is using corresponding phase difference value when different reception antennas receive same microwave signal in roadside unit to vehicle-mounted
Unit is positioned；Specially：
Antenna sets are formed using the reception antenna 1, reception antenna 2, reception antenna 3 arranged on the same line receive same vehicle-mounted
The microwave signal that unit sends；The distance between reception antenna 1 and reception antenna 2 are d12, reception antenna 1 and reception antenna 3 it
Between distance be d13；Delayed phase of the microwave signal that reception antenna 2 is received than microwave signal that reception antenna 1 is received
Delayed phase of the microwave signal that reception antenna 3 is received than microwave signal that reception antenna 1 is received
According to the d12、d13、WithCalculate arrival bearing and the aerial array method of the microwave signal that board units send
Angle theta between line；
According to the numerical value of θ, with reference to the setting height(from bottom) and angle of each reception antenna, the location information of board units is calculated；
Comparison module：For the location information by relatively more each board units, priority treatment is selected from the board units
Board units.
7. device as claimed in claim 6, it is characterised in that the comparison module be used to being selected from the board units away from
The board units nearest from the roadside unit as priority treatment board units；The roadside unit also includes transaction mould
Block, for preferentially sending charge instruction to the board units of the priority treatment.
8. a kind of DSRC application system, it is characterised in that including described in claim 6 or 7 based on special short distance
What is communicated is anti-with car countermeasure set.
9. system as claimed in claim 8, it is characterised in that the DSRC application system is bicycle road band railing
Machine electronic charging system without parking, multilane band barrier machine electronic charging system without parking, the free streaming system of bicycle road or many cars
The free streaming system in road, the signal receiving module is arranged on the bicycle road band barrier machine electronic charging system without parking, many cars
On corresponding track of the road with barrier machine electronic charging system without parking or the free streaming system of bicycle road, or it is arranged on multilane freedom
On the free flow section of at least one of streaming system.
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| CN201210199032.XA CN103514750B (en) | 2012-06-15 | 2012-06-15 | It is anti-with car interference method, device and application system based on DSRC |
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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 |
| CN105118098A (en) * | 2015-06-26 | 2015-12-02 | 深圳市金溢科技股份有限公司 | Method and system for preventing car following or adjacent lane interference, vehicle-mounted unit and road side unit |
| CN105184878B (en) * | 2015-09-30 | 2018-03-13 | 深圳市金溢科技股份有限公司 | Exclude the method for commerce of monkey chatter, roadside unit and multilane system in the same direction |
| CN110503732B (en) * | 2019-08-30 | 2021-05-14 | 深圳成谷科技有限公司 | ETC vehicle transaction method and device based on vehicle detection |
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| CN112669620B (en) * | 2020-12-10 | 2022-05-24 | 深圳市金溢科技股份有限公司 | Vehicle traveling direction determination method, ETC communication method, OBU, and RSU |
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| CN102142888B (en) * | 2011-01-31 | 2014-04-02 | 华为技术有限公司 | Microwave device and microwave transmission method |
| CN102436684B (en) * | 2011-09-20 | 2013-12-11 | 广州新软计算机技术有限公司 | Method and system for preventing a plurality of OBUs (On-Board Units) from interfering with ETC (electronic toll collection) transaction |
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