CN103730014B - A kind of statistical method of traffic flow based on ambiguous path identifying system and system - Google Patents
A kind of statistical method of traffic flow based on ambiguous path identifying system and system Download PDFInfo
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- CN103730014B CN103730014B CN201310522212.1A CN201310522212A CN103730014B CN 103730014 B CN103730014 B CN 103730014B CN 201310522212 A CN201310522212 A CN 201310522212A CN 103730014 B CN103730014 B CN 103730014B
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Abstract
This application provides a kind of statistical method of traffic flow based on ambiguous path identifying system, including：Roadside unit RSU sends beacon site information includes OBU power supply to electronic tag OBU, the OBU；The RSU receives the information of vehicles that the OBU is fed back after the beacon site information is received；The RSU often receives an information of vehicles, carries out add-one operation to Current vehicle number, and the Current vehicle number after will Jia 1 is used as Current vehicle number；The RSU calculates the vehicle flowrate in current preset duration according to Current vehicle number.Therefore, statistics cost is reduced, is overcome reading difficult problem and improves the accuracy of vehicle flowrate result and reduce energy consumption.
Description
Technical field
The application is related to intelligent transportation field, more particularly to a kind of vehicle flowrate based on ambiguous path identifying system
Method and system.
Background technology
With the fast development of highway, expressway network toll application and life, wherein, ambiguous path system exists
It is widely used in expressway network toll.Ambiguous path system is the system of registration of vehicle routing information.In highway
In networked fee collection system, can be charged according to the vehicle route information of ambiguous path system record.Although ambiguity road
Footpath system can with registration of vehicle routing information, to provide data foundation as expressway network toll, but current ambiguity road
Footpath system can not be counted to the vehicle flowrate on highway.
At present, on the highway based on ambiguous path system vehicle flowrate typically passes through to count in charge station
The vehicle fleet size of upper and lower expressway is completing, in order to realize counting the vehicle flowrate in the outer each section of charge station, existing in each section peace
Dress RFID（Radio Frequency Identification, RF identification）Label reader, is installed passive vehicle-mounted in the car
RFID label tag, reads in-car passive vehicle-mounted RFID label tag by RFID reader, vehicle flowrate is counted.
But, current vehicle typically can all paste car film, and car film can be decayed the less radio-frequency that passive vehicle-mounted RFID label tag sends
Signal, causes RFID reader to read passive vehicle-mounted RFID label tag difficulty, can cause RFID label tag when attenuation is serious
Reader cannot read passive vehicle-mounted RFID label tag, cause vehicle flowrate result inaccurate.As RFID tags reader is logical
Cross radio frequency to power to passive vehicle-mounted RFID label tag, it is therefore desirable to launch radio frequency power larger could cover large area, with protect
Demonstrate,prove when many vehicles pass through at a high speed the reading area of RFID tags reader simultaneously, not skip, but as RFID tags are read
The power of device transmitting radio frequency is big, therefore increased energy consumption.
As the highway based on ambiguous path system is in statistical vehicle flowrate, extras will be increased, therefore
Increased statistics cost.
Therefore, there is high cost, reading in the vehicle flowrate being currently based on the highway of ambiguous path system
Take the shortcoming of the inaccurate and high energy consumption of difficulty, statistics.
Content of the invention
For solving above-mentioned technical problem, the embodiment of the present application provides a kind of vehicle flowrate based on ambiguous path identifying system
Statistical method, to reduce statistics cost, overcomes accuracy and the drop for reading difficult problem and improving vehicle flowrate result
The purpose of low energy consumption, technical scheme are as follows：
A kind of statistical method of traffic flow based on ambiguous path identifying system, including：
Roadside unit RSU sends beacon site information includes OBU power supply to electronic tag OBU, the OBU；
The RSU receives the information of vehicles that the OBU is fed back after the beacon site information is received；
The RSU often receives an information of vehicles, carries out add-one operation to Current vehicle number, and current after will Jia 1
Vehicle number is used as Current vehicle number；
The RSU calculates the vehicle flowrate in current preset duration according to Current vehicle number.
Preferably, according to Current vehicle number, after calculating the vehicle flowrate in current preset duration, also include：
Return the step for roadside unit RSU transmission beacon site information being executed to electronic tag OBU.
Preferably, described according to Current vehicle number, after calculating the vehicle flowrate in current preset duration, also include：
The vehicle flowrate is sent to data center or server.
Preferably, the vehicle flowrate is sent to data center or server described, also include：
Release link instructions are sent, with the communication terminated and between the OBU.
Preferably, described according to Current vehicle number, the vehicle flowrate in current preset duration is calculated, return executes the road
Side unit RSU sends the process of beacon site information to electronic tag OBU, including：
By the Current vehicle number divided by the current preset duration, the vehicle flowrate in current preset duration is calculated；
Empty Current vehicle number；
Judge whether to receive the brand-new preset duration that the data center or server send；
If so, the brand-new preset duration is determined for current preset duration, return to execute the roadside unit RSU and send and believe
Site information is marked to electronic tag OBU；
If it is not, determining that the acquiescence preset duration of storage is current preset duration, returning the execution roadside unit RSU and sending
Beacon site information is to electronic tag OBU.
Preferably, the OBU periodicity monitoring beacon site information, in the case of beacon site information is monitored, by
Intermittent mode is converted to mode of operation, receives the beacon site information.
Preferably, the information of vehicles at least includes：
OBU ID and license plate number；
The electronic tag OBU includes：Double frequency RFID.
A kind of vehicle flowrate system based on ambiguous path identifying system, including：
Roadside unit RSU, for sending beacon site information to electronic tag OBU, receive the OBU receive described
The information of vehicles fed back after beacon site information, often receives an information of vehicles, carries out add-one operation to Current vehicle number,
And the Current vehicle number after will Jia 1 is used as Current vehicle number, and according to Current vehicle number, calculate in current preset duration
Vehicle flowrate, and return execution and send beacon site information to electronic tag OBU；
Electronic tag OBU, for receiving the beacon site information of RSU transmission, and feeds back information of vehicles to described
RSU, wherein described OBU include OBU power supply；
Wherein, the roadside unit RSU includes：
First transmitting element, for sending beacon site information to electronic tag OBU；
Receiving unit, for receiving the information of vehicles that the OBU is fed back after the beacon site information is received；
First computing unit, for often receiving an information of vehicles, carries out add-one operation to Current vehicle number, and will
Current vehicle number after plus 1 is used as Current vehicle number；
Second computing unit, for according to Current vehicle number, calculating the vehicle flowrate in current preset duration.
Preferably, second computing unit is additionally operable to, according to Current vehicle number, calculate in current preset duration
After vehicle flowrate, return and execute the first transmitting element.
Preferably, the roadside unit RSU also includes：
Second transmitting element, for sending the vehicle flowrate to data center or server.
Preferably, the roadside unit RSU also includes：
3rd transmitting element, for sending release link instructions, with the communication terminated and between the OBU.
Preferably, second computing unit includes：
3rd computing unit, current pre- for by the Current vehicle number divided by the current preset duration, calculating
If the vehicle flowrate in duration；
Unit is emptied, for emptying Current vehicle number；
Judging unit, for judging whether to receive the brand-new preset duration that the data center or server send, if
It is to execute the first determining unit, if it is not, executing the second determining unit；
First determining unit, for determining the brand-new preset duration for current preset duration, return executes described first
Transmitting element；
Second determining unit, the acquiescence preset duration for determining storage are current preset duration, return and execute described the
One transmitting element.
Compared with prior art, the having the beneficial effect that of the application：
In this application, roadside unit RSU sends beacon site information includes OBU electricity to electronic tag OBU, the OBU
Source；The RSU receives the information of vehicles that the OBU is sent after the beacon site information is received；The RSU is often received
One information of vehicles, carries out add-one operation, and the Current vehicle number after will Jia 1 is used as Current vehicle to Current vehicle number
Number；The RSU is calculated the vehicle flowrate in current preset duration, and returns the execution trackside list according to Current vehicle number
First RSU sends beacon site information to electronic tag OBU.
As RSU and OBU is that the device in ambiguous path system and the RSU in ambiguous path system are arranged at a high speed
The each section of highway, therefore, can be to the wagon flow in each section in highway by the RSU in ambiguous path system and OBU
Amount is counted, and need not be increased extras, be reduced statistics cost.OBU includes OBU power supply, is active RFID electronic mark
Sign, improve the transmit power of signal so that send strong to the signal of RSU, the impact of vehicle pad pasting deamplification is reduced, from
And overcome the accuracy for reading difficult problem and improve vehicle flowrate result.And the OBU power supply that OBU is included by which is supplied
Electricity, transmits wireless signals to OBU compared to RSU and powers, reduce energy consumption.
Description of the drawings
For the technical scheme being illustrated more clearly that in the embodiment of the present application, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present application, for
For those of ordinary skill in the art, without having to pay creative labor, which can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is a kind of a kind of flow process of statistical method of traffic flow based on ambiguous path identifying system that the application is provided
Figure；
Fig. 2 is a kind of another kind of stream of statistical method of traffic flow based on ambiguous path identifying system that the application is provided
Cheng Tu；
Fig. 3 is a kind of a kind of subflow of statistical method of traffic flow based on ambiguous path identifying system that the application is provided
Cheng Tu；
Fig. 4 is a kind of another stream for statistical method of traffic flow based on ambiguous path identifying system that the application is provided
Cheng Tu；
Fig. 5 is a kind of another stream for statistical method of traffic flow based on ambiguous path identifying system that the application is provided
Cheng Tu；
Fig. 6 is a kind of another stream for statistical method of traffic flow based on ambiguous path identifying system that the application is provided
Cheng Tu；
Fig. 7 is a kind of a kind of structure of vehicle flowrate system based on ambiguous path identifying system that the application is provided
Schematic diagram；
Fig. 8 is a kind of a kind of structural representation of roadside unit RSU that the application is provided；
Fig. 9 is a kind of a kind of structural representation of second computing unit that the application is provided；
Figure 10 is a kind of another kind of structural representation of roadside unit RSU that the application is provided；
Figure 11 is a kind of yet another construction schematic diagram of roadside unit RSU that the application is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of the application protection.
In this application, ambiguous path identifying system is applied to highway, and wherein, ambiguous path identifying system is extremely
Include RSU less（Roadside unit, Road Side Unit）And OBU（Electronic tag, On Board Unit）.RSU is installed at a high speed
The trackside in each section of highway, OBU is in the vehicle for entering express highway section.
One embodiment
Fig. 1 is referred to, a kind of vehicle flowrate based on ambiguous path identifying system of the application offer is provided
A kind of flow chart of method, may comprise steps of：
Step S11：Roadside unit RSU sends beacon site information includes OBU power supply to electronic tag OBU, the OBU.
In the present embodiment, roadside unit RSU sends beacon site information to the electronic tag OBU positioned at in-car, by
OBU receives the beacon site information that RSU sends.
As OBU is installed in travelling in vehicle on express highway section, and express highway section include multiple
RSU, therefore, the vehicle for being provided with OBU is often entered in effective read range of a RSU, and RSU will send beacon site information
OBU to corresponding vehicle.
In the present embodiment, OBU improves the transmit power of signal per se with power supply, as transmit power is carried
Height, is therefore strengthened the signal strength signal intensity of transmission to RSU, and the signal strength signal intensity through vehicle pad pasting also strengthens, so as to reduce
The impact of vehicle pad pasting deamplification.
In the present embodiment, OBU is sent wireless signal without the need for RSU and powers, reduce the energy consumption of RSU per se with power supply.
And OBU by per se with power supply power, compared to by RSU send wireless signal power, overall energy consumption is relatively low.
In the present embodiment, electronic tag OBU can be double frequency RFID, naturally it is also possible to for single-frequency RFID electricity
Subtab.
Step S12：The RSU receives the information of vehicles that the OBU is fed back after the beacon site information is received.
OBU can feed back the information of vehicles of OBU record to corresponding RSU after the beacon site information for receiving RSU transmission.
RSU then receives the information of vehicles of OBU feedback.
In the present embodiment, the information of vehicles of OBU feedback at least includes：OBU ID and license plate number.
Step S13：The RSU often receives an information of vehicles, carries out add-one operation to Current vehicle number, and will Jia 1
Current vehicle number afterwards is used as Current vehicle number.
In the present embodiment, when any one information of vehicles is not received, Current vehicle number can be initially RSU
Zero.
RSU often receives an information of vehicles, then carry out add-one operation to Current vehicle number, and by the current vehicle after Jia 1
Number is used as Current vehicle number.
Step S14：The RSU calculates the vehicle flowrate in current preset duration according to Current vehicle number.
In the present embodiment, RSU can calculate the vehicle flowrate in current preset duration according to Current vehicle number.
In the present embodiment, current preset duration can be that data center or server send, naturally it is also possible to deposit for RSU
The acquiescence preset duration of storage.
The vehicle flowrate of current preset duration is the data that Current vehicle number is obtained divided by current preset duration.
In this application, roadside unit RSU sends beacon site information to the double frequency RFID for being located at in-car
OBU, the OBU include OBU power supply；The RSU receives the vehicle that the OBU is sent after the beacon site information is received
Information；The RSU often receives an information of vehicles, carries out add-one operation to Current vehicle number, and by the current vehicle after Jia 1
Number is used as Current vehicle number；The RSU calculates the vehicle flowrate in current preset duration according to Current vehicle number.
As RSU and OBU is that the device in ambiguous path system and the RSU in ambiguous path system are arranged at a high speed
The each section of highway, therefore, can be to the wagon flow in each section in highway by the RSU in ambiguous path system and OBU
Amount is counted, and need not be increased extras, be reduced statistics cost.OBU includes OBU power supply, is active RFID electronic mark
Sign, improve the transmit power of signal so that send strong to the signal of RSU, the impact of vehicle pad pasting deamplification is reduced, from
And overcome the accuracy for reading difficult problem and improve vehicle flowrate result.And the OBU power supply that OBU is included by which is supplied
Electricity, transmits wireless signals to OBU compared to RSU and powers, reduce energy consumption.
Another embodiment
In the present embodiment, in a kind of statistical method of traffic flow based on ambiguous path identifying system shown in Fig. 1
On the basis of expand another kind of statistical method of traffic flow based on ambiguous path identifying system, detailed process refers to Fig. 2.Figure
The 2 another kind of flow charts for showing a kind of statistical method of traffic flow based on ambiguous path identifying system that the application is provided,
May comprise steps of：
Fig. 2 is referred to, a kind of vehicle flowrate based on ambiguous path identifying system of the application offer is provided
A kind of flow chart of method, may comprise steps of：
Step S21：Roadside unit RSU sends beacon site information includes OBU power supply to electronic tag OBU, the OBU.
Step S22：The RSU receives the information of vehicles that the OBU is fed back after the beacon site information is received.
Step S23：The RSU often receives an information of vehicles, carries out add-one operation to Current vehicle number, and will Jia 1
Current vehicle number afterwards is used as Current vehicle number.
A kind of vehicle flowrate based on ambiguous path identifying system shown in step S21, step S22 and step S23 and Fig. 1
Step S11, step S12 in statistical method is identical with step S13, will not be described here.
Step S24：The RSU is calculated the vehicle flowrate in current preset duration, and returns execution according to Current vehicle number
The roadside unit RSU sends beacon site information to the step for being located at in-car electronic tag OBU.
In the present embodiment, RSU can calculate the vehicle flowrate in current preset duration according to Current vehicle number, and
Execution step S21 is returned, to realize vehicle flowrate being calculated within continuous time.
In the present embodiment, current preset duration can be that data center or server send, naturally it is also possible to deposit for RSU
The acquiescence preset duration of storage.
The vehicle flowrate of current preset duration is the data that Current vehicle number is obtained divided by current preset duration.
The present embodiment, can compared to a kind of statistical method of traffic flow based on ambiguous path identifying system shown in Fig. 1
With in the case of not receiving and ceasing and desisting order, continuous continual calculating vehicle flowrate.
Further embodiment
In the present embodiment, thus it is shown that RSU calculates the vehicle flowrate in current preset duration according to Current vehicle number,
And the detailed process for executing the step for roadside unit RSU sends beacon site information electronic tag OBU extremely is returned, please
A kind of one kind for statistical method of traffic flow based on ambiguous path identifying system that the application is provided is shown referring to Fig. 3, Fig. 3
Sub-process figure, may comprise steps of：
Step S31：By the Current vehicle number divided by the current preset duration, calculate in current preset duration
Vehicle flowrate.
Step S32：Empty Current vehicle number.
After the vehicle flowrate in current preset duration is calculated, the Current vehicle number i.e. number of Current vehicle number is emptied
Value returns to original state.Current vehicle number is emptied, the vehicle flowrate that can simplify in next current preset duration was calculated
Journey and avoid mistake in computation.
Step S33：Judge whether to receive the brand-new preset duration that the data center or server send.
Current vehicle number is being emptied, RSU judges whether to receive data center or when completely newly presetting of server transmission
Long, if receiving, execution step S24, if not receiving, execution step S25.
Step S34：The brand-new preset duration is determined for current preset duration, return the execution roadside unit RSU and send out
Deliver letters site information is marked to electronic tag OBU.
Step S35：Determine that the acquiescence preset duration for storing is current preset duration, return and execute the roadside unit RSU
Beacon site information is sent to electronic tag OBU.
Further embodiment
In the present embodiment, in a kind of statistical method of traffic flow based on ambiguous path identifying system shown in Fig. 2
On the basis of expand another kind of statistical method of traffic flow based on ambiguous path identifying system, detailed process refers to Fig. 4.Figure
The 4 another kind of flow charts for showing a kind of statistical method of traffic flow based on ambiguous path identifying system that the application is provided,
May comprise steps of：
Step S41：Roadside unit RSU sends beacon site information includes OBU power supply to electronic tag OBU, the OBU.
Step S42：The RSU receives the information of vehicles that the OBU is fed back after the beacon site information is received.
Step S43：The RSU often receives an information of vehicles, carries out add-one operation to Current vehicle number, and will Jia 1
Current vehicle number afterwards is used as Current vehicle number.
A kind of vehicle flowrate based on ambiguous path identifying system shown in step S41, step S42 and step S43 and Fig. 1
Step S31, step S32 in statistical method is identical with step S33, will not be described here.
Step S44：The RSU calculates the vehicle flowrate in current preset duration according to Current vehicle number.
Wherein, RSU according to Current vehicle number, shown with Fig. 3 by the detailed process for calculating the vehicle flowrate in current preset duration
, according to Current vehicle number, the detailed process of the vehicle flowrate in calculating current preset duration is identical, and here is no longer gone to live in the household of one's in-laws on getting married for the RSU for going out
State.
Step S45：The vehicle flowrate is sent to data center or server.
In the present embodiment, RSU sends calculated vehicle flowrate to data center or server.
In the present embodiment, data center or server, are to control whole section in freeway facility（Or it is whole high
Fast network of highways）In the computer that can network（Can be a common computer, or mainframe computer or server）, tool
There are communication, data storage, computing and control the function of connected device action.
Wherein, RSU calculated vehicle flowrate can be sent to data center by wire communication or radio communication or
Server.
Further embodiment
In the present embodiment, in a kind of statistical method of traffic flow based on ambiguous path identifying system shown in Fig. 4
On the basis of expand another kind of statistical method of traffic flow based on ambiguous path identifying system, detailed process refers to Fig. 5.Figure
5 another flow chart for showing a kind of statistical method of traffic flow based on ambiguous path identifying system that the application is provided,
May comprise steps of：
Step S51：Roadside unit RSU sends beacon site information includes OBU power supply to electronic tag OBU, the OBU.
Step S52：The RSU receives the information of vehicles that the OBU is fed back after the beacon site information is received.
Step S53：The RSU often receives an information of vehicles, carries out add-one operation to Current vehicle number, and will Jia 1
Current vehicle number afterwards is used as Current vehicle number.
Step S54：The RSU is calculated the vehicle flowrate in current preset duration, and returns execution according to Current vehicle number
The step for roadside unit RSU sends beacon site information to electronic tag OBU.
Wherein, RSU according to Current vehicle number, shown with Fig. 3 by the detailed process for calculating the vehicle flowrate in current preset duration
, according to Current vehicle number, the detailed process of the vehicle flowrate in calculating current preset duration is identical, and here is no longer gone to live in the household of one's in-laws on getting married for the RSU for going out
State.
One kind shown in step S51, step S52, step S53 and step S54 and Fig. 4 is based on ambiguous path identifying system
Statistical method of traffic flow in step S41, step S42, step S43 identical with step S44, will not be described here.
Step S55：The vehicle flowrate is sent to data center or server.
Step S56：Release link instructions are sent, with the communication terminated and between the OBU.
No longer response is sent after release link instructions are received OBU any instruction of the RSU of release link instructions, is kept away
The excessive situation of RSU processing data that RSU constantly receives OBU feedack and cause is exempted from.
Further embodiment
In the present embodiment, in a kind of statistical method of traffic flow based on ambiguous path identifying system shown in Fig. 5
On the basis of expand another kind of statistical method of traffic flow based on ambiguous path identifying system, detailed process refers to Fig. 6.Figure
The 6 another kind of flow charts for showing a kind of statistical method of traffic flow based on ambiguous path identifying system that the application is provided,
May comprise steps of：
Step S61：Roadside unit RSU sends beacon site information includes OBU power supply to electronic tag OBU, the OBU.
Step S62：The RSU receives the information of vehicles that the OBU is fed back after the beacon site information is received.
Step S63：The RSU often receives an information of vehicles, carries out add-one operation to Current vehicle number, and will Jia 1
Current vehicle number afterwards is used as Current vehicle number.
A kind of vehicle flowrate based on ambiguous path identifying system shown in step S61, step S42 and step S43 and Fig. 1
Step S31, step S32 in statistical method is identical with step S33, will not be described here.
Step S64：The RSU calculates the vehicle flowrate in current preset duration according to Current vehicle number.
Step S65：The vehicle flowrate is sent to data center or server.
Step S66：Release link instructions are sent, with the communication terminated and between the OBU.
One kind shown in step S61, step S62, step S63, step S64, step S65 and step S66 and Fig. 5 is based on two
Step S51, step S52, step S53, step S54, step S55 in the statistical method of traffic flow of justice path identifying system and
Step S56 is identical, will not be described here.
Step S67：Return the step for roadside unit RSU transmission beacon site information being executed to electronic tag OBU.
No longer response is sent after release link instructions are received OBU any instruction of the RSU of release link instructions, is kept away
The excessive situation of RSU processing data that RSU constantly receives OBU feedack and cause is exempted from.
After release link instructions are sent, execution step S61 is returned.
In the above-described embodiments, OBU periodicity monitoring beacon site information, in the situation for monitoring beacon site information
Under, mode of operation is converted to by intermittent mode, receives the beacon site information.Wherein, intermittent mode is battery saving mode.
For aforesaid each method embodiment, in order to be briefly described, therefore which is all expressed as a series of combination of actions, but
It is that those skilled in the art should know, the application is not limited by described sequence of movement, because according to the application, certain
A little steps using other orders or while can be carried out.Secondly, those skilled in the art should also know, be retouched in specification
The embodiment that states belongs to preferred embodiment, necessary to involved action and module not necessarily the application.
Corresponding with said method embodiment, this application provides a kind of vehicle flowrate based on ambiguous path identifying system
A kind of structural representation of statistical system, refers to Fig. 7, the vehicle flowrate system bag based on ambiguous path identifying system
Include：Roadside unit RSU71 and electronic tag OBU72.Wherein：
Roadside unit RSU71, for sending beacon site information to electronic tag OBU, receives the OBU receiving
The information of vehicles fed back after beacon site information being stated, an information of vehicles often being received, fortune is carried out plus 1 to Current vehicle number
Calculate, and the Current vehicle number after will Jia 1 is used as Current vehicle number, and according to Current vehicle number, when calculating current preset
Vehicle flowrate in length, and execution transmission beacon site information is returned to electronic tag OBU.
Electronic tag OBU72, for receiving the beacon site information of RSU transmission, and feeds back information of vehicles to described
RSU.
Wherein electronic tag OBU72 includes OBU power supply.
In the present embodiment, the concrete structure of roadside unit RSU71 may refer to Fig. 8, Fig. 8 and be illustrated that the application is provided
A kind of roadside unit RSU a kind of structural representation, roadside unit RSU includes：
First transmitting element 81, receiving unit 82, the first computing unit 83 and the second computing unit 84.
First transmitting element 81, for sending beacon site information to electronic tag OBU.
Receiving unit 82, for receiving the information of vehicles that the OBU is fed back after the beacon site information is received.
First computing unit 83, for often receiving an information of vehicles, carries out add-one operation to Current vehicle number, and
Current vehicle number after will Jia 1 is used as Current vehicle number.
Second computing unit 84, for according to Current vehicle number, calculating the vehicle flowrate in current preset duration.
In the above-described embodiments, the second computing unit 84 is additionally operable in foundation Current vehicle number, when calculating current preset
After vehicle flowrate in length, return and execute the first transmitting element 81.
Wherein, the second computing unit 84 calculates the vehicle flowrate in current preset duration for foundation Current vehicle number,
And in the case of returning the first transmitting element 81 of execution, the concrete structure of the second computing unit 84 may refer to Fig. 9, Fig. 9 and illustrate
Be a kind of second computing unit that the application is provided a kind of structural representation, the second computing unit includes：
3rd computing unit 91, empty unit 92, judging unit 93, the first determining unit 94 and the second determining unit 95.
3rd computing unit 91, current for by the Current vehicle number divided by the current preset duration, calculating
Vehicle flowrate in preset duration.
Unit 92 is emptied, for emptying Current vehicle number.
Judging unit 93, for judging whether to receive the brand-new preset duration that the data center or server send,
If so, the first determining unit 94 is executed, if it is not, executing the second determining unit 95.
First determining unit 94, for determining the brand-new preset duration for current preset duration, returns and executes described the
One transmitting element 81.
Second determining unit 95, the acquiescence preset duration for determining storage are current preset duration, return execution described
First transmitting element 81.
Another embodiment
In the present embodiment, another kind of roadside unit is expanded on the basis of a kind of roadside unit RSU shown in Fig. 8
RSU, concrete composition refer to Figure 10.A kind of another kind of structural representation of roadside unit RSU that wherein Figure 10 is provided for the application
Figure, also includes on the basis of a kind of roadside unit RSU shown in Fig. 8：Second transmitting element 101, for sending the wagon flow
Measure to data center or server.
Further embodiment
In the present embodiment, another kind of roadside unit is expanded on the basis of a kind of roadside unit RSU shown in Figure 10
RSU, concrete composition refer to Figure 11.A kind of yet another construction of roadside unit RSU that wherein Figure 11 is provided for the application is illustrated
Figure, also includes on the basis of a kind of roadside unit RSU shown in Figure 10：3rd transmitting element 111, for sending release link
Instruction, with the communication terminated and between the OBU.
It should be noted that each embodiment in this specification is all described by the way of going forward one by one, each embodiment weight
Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.
For device class embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, related part ginseng
See the part explanation of embodiment of the method.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between exist any this actual relation or order.And, term " including ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that a series of process including key elements, method, article or equipment not only include that
A little key elements, but also other key elements including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element for being limited by sentence "including a ...", does not arrange
Remove and also there is other identical element in the process for including the key element, method, article or equipment.
Above to a kind of statistical method of traffic flow based on ambiguous path identifying system provided herein and system
It is described in detail, specific case used herein is set forth to the principle of the application and embodiment, above reality
The explanation for applying example is only intended to help and understands the present processes and its core concept；General technology simultaneously for this area
Personnel, according to the thought of the application, all will change in specific embodiments and applications, in sum, this theory
Bright book content should not be construed as the restriction to the application.
Claims (6)
1. a kind of statistical method of traffic flow based on ambiguous path identifying system, it is characterised in that include：
Roadside unit RSU sends beacon site information includes OBU power supply to electronic tag OBU, the OBU；
The RSU receives the information of vehicles that the OBU is fed back after the beacon site information is received；
The RSU often receives an information of vehicles, carries out add-one operation to Current vehicle number, and by the Current vehicle after Jia 1
Number is used as Current vehicle number；
The RSU calculates the vehicle flowrate in current preset duration according to Current vehicle number；
Wherein, the RSU is arranged on freeway；
Wherein, according to Current vehicle number, after calculating the vehicle flowrate in current preset duration, also include：
Return the step for roadside unit RSU transmission beacon site information being executed to electronic tag OBU；
The foundation Current vehicle number, calculates the vehicle flowrate in current preset duration, returns the execution roadside unit RSU and sends out
The process of mark site information to electronic tag OBU of delivering letters, including：
By the Current vehicle number divided by the current preset duration, the vehicle flowrate in current preset duration is calculated；
Empty Current vehicle number；
Judge whether to receive the brand-new preset duration that data center or server send；
If so, the brand-new preset duration is determined for current preset duration, return and execute the roadside unit RSU transmission beaconing station
Point information is to electronic tag OBU；
If it is not, determining that the acquiescence preset duration of storage is current preset duration, returning the execution roadside unit RSU and sending beacon
Site information is to electronic tag OBU.
2. method according to claim 1, it is characterised in that described according to Current vehicle number, calculates current preset
After vehicle flowrate in duration, also include：
The vehicle flowrate is sent to data center or server；
The vehicle flowrate is being sent to data center or server, also including：
Release link instructions are sent, with the communication terminated and between the OBU.
3. method according to claim 1 and 2, it is characterised in that the OBU periodicity monitoring beacon site information,
In the case of monitoring beacon site information, mode of operation is converted to by intermittent mode, receives the beacon site information.
4. method according to claim 1 and 2, it is characterised in that the information of vehicles at least includes：
OBU ID and license plate number；
The electronic tag OBU includes：Double frequency RFID.
5. a kind of vehicle flowrate system based on ambiguous path identifying system, it is characterised in that include：
Roadside unit RSU, for sending beacon site information to electronic tag OBU, receives the OBU and is receiving the beacon
The information of vehicles fed back after site information, often receives an information of vehicles, carries out add-one operation to Current vehicle number, and will
Current vehicle number after plus 1 is used as Current vehicle number, and according to Current vehicle number, calculates the car in current preset duration
Flow, and execution transmission beacon site information is returned to electronic tag OBU；
Electronic tag OBU, for receiving the beacon site information of RSU transmission, and feeds back information of vehicles to the RSU, its
Described in OBU include OBU power supply；
Wherein, the roadside unit RSU includes：
First transmitting element, for sending beacon site information to electronic tag OBU；
Receiving unit, for receiving the information of vehicles that the OBU is fed back after the beacon site information is received；
First computing unit, for often receiving an information of vehicles, carries out add-one operation to Current vehicle number, and after will Jia 1
Current vehicle number as Current vehicle number；
Second computing unit, for according to Current vehicle number, calculating the vehicle flowrate in current preset duration；
Wherein, the roadside unit RSU is arranged on freeway；
Wherein, second computing unit is additionally operable to, according to Current vehicle number, calculate the vehicle flowrate in current preset duration
Afterwards, return and execute the first transmitting element；
Second computing unit includes：
3rd computing unit, for by the Current vehicle number divided by the current preset duration, when calculating current preset
Vehicle flowrate in length；
Unit is emptied, for emptying Current vehicle number；
Judging unit, for judging whether to receive the brand-new preset duration that data center or server send, if so, executes the
One determining unit, if it is not, execute the second determining unit；
First determining unit, for determining the brand-new preset duration for current preset duration, returns and executes first transmission
Unit；
Second determining unit, the acquiescence preset duration for determining storage are current preset duration, return execution described first
Send unit.
6. system according to claim 5, it is characterised in that the roadside unit RSU also includes：
Second transmitting element, for sending the vehicle flowrate to data center or server；
The roadside unit RSU for including second transmitting element also includes：3rd transmitting element, refers to for sending release link
Order, with the communication terminated and between the OBU.
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| CN201310522212.1A CN103730014B (en) | 2013-10-29 | 2013-10-29 | A kind of statistical method of traffic flow based on ambiguous path identifying system and system |
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| CN201310522212.1A CN103730014B (en) | 2013-10-29 | 2013-10-29 | A kind of statistical method of traffic flow based on ambiguous path identifying system and system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104794929A (en) * | 2015-04-10 | 2015-07-22 | 成都锐奕信息技术有限公司 | Highway network operating monitoring and managing system |
| CN107886584B (en) * | 2017-10-27 | 2020-08-18 | 深圳市金溢科技股份有限公司 | Wake-up signal sending control method, controller, road side unit and toll collection tag |
| CN110083594A (en) * | 2019-04-24 | 2019-08-02 | 广东联合电子服务股份有限公司 | A kind of elimination method and device of terminating machine jump data |
| CN113963550A (en) * | 2020-07-21 | 2022-01-21 | 阿里巴巴集团控股有限公司 | Ambiguous path identification method and device and electronic equipment |
| CN115830730A (en) * | 2022-11-15 | 2023-03-21 | 广州铭创通讯科技有限公司 | RSU equipment integrating ETC fee deduction, traffic flow monitoring and Beidou positioning |
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