CN109472880A

CN109472880A - Cloud path system and implementation method based on Radio Frequency Identification Technology

Info

Publication number: CN109472880A
Application number: CN201811273111.4A
Authority: CN
Inventors: 王启斌; 罗杜波; 欧启伦; 肖奇
Original assignee: Guangzhou Inlay Information Technology Co Ltd
Current assignee: Guangzhou Inlay Information Technology Co Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2019-03-15
Anticipated expiration: 2038-10-30
Also published as: CN109472880B

Abstract

The invention discloses a kind of cloud path system and implementation method based on Radio Frequency Identification Technology, system includes entrance lane charging system, mark dot system, exit lane charging system, radio frequency roadside unit, cloud Trail termination and cloud path cloud, the entrance lane charging system, it is deployed in expressway access lane, radio frequency roadside unit is connected, the information of vehicles of highway is entered by the identification of radio frequency roadside unit；The mark dot system is deployed in section of the highway there are ambiguous path, connects radio frequency roadside unit, and the information of vehicles of highway is entered by the identification of radio frequency roadside unit；The exit lane charging system is deployed in expressway exit lane, connects radio frequency roadside unit, and the information of vehicles of highway is driven out to by the identification of radio frequency roadside unit；The information of vehicles, is then passed to the host computer of connection radio frequency roadside unit by the radio frequency roadside unit, the information of vehicles passed through by radio-frequency technique identification；The cloud Trail termination, is deployed in charge station, stores freeway network information, for receiving entrance lane charging system or identifying the vehicle route information that dot system sends；Cloud path cloud, is deployed in Back end data center, for being managed to cloud Trail termination.

Description

Cloud path system and implementation method based on Radio Frequency Identification Technology

Technical field

The invention belongs to the technical fields of Path Recognition, are related to a kind of cloud path system and reality based on Radio Frequency Identification Technology Existing method.

Background technique

Probability method of identification is usually relied on to realize in traditional solution for freeway path identification problem Path Recognition, such as critical path method (CPM), negotiation investigation method, applied probability method etc., these methods rely on theoretical calculation and association mostly Quotient splits, although at low cost, caused dispute is also big.With continuing to bring out for new technology, this traditional probability identifies skill Art is gradually eliminated.The direction of vehicle running path accurately identified as research and application is realized using new technology.

It is exactly that the actual travel path of each car is accurately identified by technical measures that path, which accurately identifies technology, is directly solved Certainly charges and fractionation both sides problem, although the financial support that this technology needs are certain, can reduce pass cost It is lost, any dispute will not be caused in terms of expense levying and fractionation, can preferably safeguard the interests of user and owner, and modern The application trend of freeway path identification technology afterwards.

In recent years, Path Recognition research and application hot spot all concentrate on accurately identifying technically.On the one hand, the technology energy It is collected the charges according to vehicle actual travel route, reduces the loss of pass cost；It on the other hand, can be according to the investment of different sections of highway Situation is rationally split, and eliminates the dispute between owner.With the technologies such as microwave communication, image recognition maturation application, at present compared with For hot spot exact path identification technology specifically include that RFID identification technology, video vehicle license plate recognition, GPS identification technology, 5.8G DSRC unified path identification technology, electronic license plate identification technology.

Currently, video Car license recognition and RFID identification technology are most popular, but there is also this certain drawbacks for both technologies. The operating condition of license plate recognition technology is influenced by site environment, and accuracy of identification is not high under the adverse circumstances such as light is poor；And Although 433MHz RFID identification technology using extremely successful, can not be applied to the ETC vehicle of 5.8G, need in the lane MTC In addition 5.8G mark equipment is disposed, increased costs are caused.

In the near term, 5.8G DSRC unified path identification technology can solve the problems, such as MTC and ETC Path Recognition simultaneously, be Comparatively ideal scheme.From the point of view of long long term, with the construction of smart city and the development of radio-frequency technique, country can gradually add The application of big electronic license plate technology, pushes the standardized process of electronic license plate, solves to exist in electronic license plate application process as early as possible The problem of, passive electronic license plate technology solves the problems, such as the preferred plan of Path Recognition by becoming.It is based on so how to develop one kind The cloud path implementation method of video technique is the research direction of those skilled in the art.

Summary of the invention

The shortcomings that it is a primary object of the present invention to overcome the prior art and deficiency provide a kind of based on Radio Frequency Identification Technology Cloud path system and implementation method.

In order to achieve the above object, the invention adopts the following technical scheme:

Cloud path system provided by the invention based on Radio Frequency Identification Technology, including entrance lane charging system, identification point System, exit lane charging system, radio frequency roadside unit, cloud Trail termination and cloud path cloud,

The entrance lane charging system is deployed in expressway access lane, connects radio frequency roadside unit, passes through radio frequency Roadside unit identification enters the information of vehicles of highway, and entrance lane charging system is obtained from radio frequency roadside unit into high speed After the information of vehicles of highway, it sends information of vehicles, access station information to the cloud Trail termination for being deployed in the charge station, then by this Information of vehicles and access information are passed ahead to the cloud path for the charge station that may be reached by cloud Trail termination according to road network information Terminal；

The mark dot system is deployed in section of the highway there are ambiguous path, connects radio frequency roadside unit, leads to The information of vehicles that the identification of radio frequency roadside unit enters highway is crossed, mark dot system is obtained from radio frequency roadside unit by the mark After the information of vehicles for knowing point vehicle, it sends information of vehicles, identification point information to certain the specified charge station for being deployed in this section Cloud Trail termination, then previous vehicle driving path is merged by the cloud Trail termination and generates the newest driving path of vehicle, and will most New traveling path root is passed ahead to the cloud Trail termination for the charge station that may be reached according to road network information；

The exit lane charging system is deployed in expressway exit lane, connects radio frequency roadside unit, passes through radio frequency Roadside unit identifies the information of vehicles for being driven out to highway, and exit lane charging system is obtained from radio frequency roadside unit and will be driven out to After the information of vehicles of highway, vehicle running path information is obtained from the cloud Trail termination for being deployed in the charge station, in conjunction with this The outlet information stood forms complete vehicle running path, calculates pass cost according to driving path, collects pass cost, clearance vehicle ?；

The radio frequency roadside unit, the information of vehicles passed through by radio-frequency technique identification, then passes the information of vehicles Pass the host computer of connection radio frequency roadside unit；

The cloud Trail termination is deployed in charge station, stores freeway network information, for receiving entrance lane charge The vehicle route information that system or mark dot system are sent, then according to road network information, the receipts that may be reached in front of travelling Take the cloud Trail termination transmitting vehicle route information at station；

Cloud path cloud, is deployed in Back end data center, for being managed to cloud Trail termination, including deployment pipe Reason, parameter management and condition managing；In addition, cloud path cloud also stores vehicle running path information, in case because of identification point Or query path uses when the missing of vehicle running path caused by network failure.

As a preferred technical solution, the cloud Trail termination by information of vehicles and access information according to road network information forward Pass to the principle of the cloud Trail termination foundation for the charge station that may be reached are as follows:

It is only delivered to from the charge station without where the reachable all charge stations of identification point and next possible identification point The charge station in section identifies the transmitting of routing information caused by point failure etc. in order to prevent and discontinuously lacks, and cloud Trail termination removes To outside the transmission path information of traveling front, also to cloud transmission path information, in case not finding vehicle in cloud Trail termination It is obtained when routing information from cloud.

Being passed ahead to described in as a preferred technical solution, and according to road network information newest driving path may arrival Charge station cloud Trail termination in the principle transmitted are as follows:

It is only delivered to from the charge station without where the reachable all charge stations of identification point and next possible identification point The charge station in section；If cloud Trail termination can not find the routing information of corresponding vehicle when merging previous vehicle driving path, Illustrate previous identification point or access station path transmitting failure, is then obtained by cloud path cloud, identify point failure etc. in order to prevent Caused routing information transmitting is discontinuous and lacks, and cloud Trail termination is other than the transmission path information in front of travelling, also to cloud Transmission path information is held, in case obtaining when cloud Trail termination removes and do not find vehicle route information from cloud.

As a preferred technical solution, in exit lane charging system, if cloud Trail termination can not find corresponding vehicle Routing information, illustrate previous identification point or access station path transmitting failure, then by cloud path cloud obtain.

As a preferred technical solution, in cloud Trail termination, in order to avoid there is unlimited endless loop in routing information forwarding, Cloud Trail termination only sends routing information to all charge stations reachable without identification point in transmitting path information forwards With the charge station in section where next possible identification point；Identify in order to prevent the transmitting of routing information caused by point failure it is discontinuous and Missing, cloud Trail termination is other than the cloud Trail termination transmission path information in front of travelling, also to cloud transmission path information；? Charge station is exported, cloud Trail termination provides vehicle running path information to lane toll system, uses for charging；If cloud path Terminal does not respond to vehicle running path information, illustrates previous identification point or access station path transmitting failure, then passes through cloud path Cloud obtains.

The implementation method of the present invention also provides a kind of cloud path system based on Radio Frequency Identification Technology, including following steps It is rapid:

(1) the cloud path terminating equipment of storage and distribution routing information is used in the deployment of each charge station；

(2) for vehicle when passing through access station or identification point, radio frequency roadside unit passes through vehicle by Radio Frequency Identification Technology acquisition Information, and by collected information of vehicles, access station coding or identification point coding be sent to cloud Trail termination: (A) for Collected information is sent to the cloud Trail termination of our station deployment, is deposited by the cloud Trail termination by access station, radio frequency roadside unit It stores up and forwards vehicle route information forward；(B) for identification point, collected information is sent to identification point by radio frequency roadside unit The cloud Trail termination of specified certain charge station deployment in affiliated section, then previous path is spliced by the cloud Trail termination, store and is turned It dispatches a car a routing information；

(3) cloud Trail termination is stored with freeway network information, on the vehicle road that RX path acquisition equipment is sent After diameter information, splices and store path information may charge then according to the possible driving direction of vehicle to traveling front is deployed in The current path information for the cloud Trail termination distribution vehicle stood；

(4) the cloud Trail termination of traveling front charge station deployment receives the cloud Trail termination hair of connection path acquisition equipment After the vehicle route information sent, store spare；

(5) the cloud Trail termination of connection path acquisition equipment is only forwarded to not identified in forward-path information forward The charge station in section where the reachable all charge stations of point and next identification point；

(6) if causing routing information that cannot successively transmit downwards due to identifying point failure, connection path acquisition is caused to set Standby cloud Trail termination is after receiving the information of vehicles that identification point is sent, when cannot obtain the vehicle previous path information, this The path Shi Congyun cloud obtains, and repair process uses when cloud path cloud transmits abnormal as path, to reduce the letter on network Breath stream；

(7) since there are multiple circuits in network, for same vehicle, certain cloud Trail termination may will receive one Multiple routing informations that cloud Trail termination is sent retain one；

(8) for 5.8G identification point, routing information is successively transmitted between cloud Trail termination along driving direction；For electronics License plate recognition technology, due to not having directionality, routing information is in cloud Trail termination-" cloud path cloud "-cloud Trail termination three Between transmit；

(9) in outlet station, lane toll system obtains the routing information of vehicle from cloud Trail termination, according to actual travel road Diameter calculates pass cost.

As a preferred technical solution, in the step (3), the freeway network information passes through following four aspects Element description:

(A) charge station's information, (B) charge station block information, (C) identification point block information, the section (D) intermediate node information；

In charge station's information, charge station includes entity charge station and dummy charge station, and the dummy charge station refers to The section is virtual presence in the charge station set up with other section connecting points, between charging in section and description section It interconnects use, and the dummy charge station is also used to describe the identification point of section laying；Charge station's information includes: to receive Section coding, charge station's coding, charge station's type, the cloud Trail termination IP address for disposing the charge station where expense station；

Charge station's block information, description entity charge station are located at this which two reachable section intermediate nodes are included Between the phantom station in the affiliated section of charge station, charge station's block information includes: section coding, coding of standing, closes on phantom station Coding 1 closes on phantom station coding 2, wherein " close on phantom station coding 1 ", that " closing on phantom station coding 2 " describes both ends respectively is reachable The section intermediate node affiliated section of the charge station that is included phantom station；

The identification point block information describes identification point and is located at belonging to the identification point which two " section intermediate nodes " are included Between the phantom station in section, identification point block information includes: identification point number, affiliated section, access station number, outlet station volume Number,；Wherein " access station number ", " outlet station number " describe the affiliated road of identification point that both ends " section intermediate node " are included respectively The phantom station of section；

The section intermediate node information describes the connectivity between section, and section intermediate node is virtually received accordingly by each section Expense station group is combined into, and section intermediate node information includes: node serial number, section coding 1, coding 1 of standing, section coding 2, standing encodes 2, " node serial number " identifies certain a road section intermediate node, represents an interchange or section tie point；One in the intermediate node table of section Item record represents the combination of a pair of of phantom station, indicates that " road can be reached by the node from " coding 1 of standing " of " section coding 1 " " coding 2 of standing " of section coding 2 "；Or " section coding 1 " can be reached by the node from " coding 2 of standing " of " section coding 2 " " stand coding 1 ".

As a preferred technical solution, in step (2)-(A), the acquisition of access station routing information and transmitting process flow are such as Under:

(2A-1) entrance lane charging system enters the information of vehicles of highway by the identification of radio frequency roadside unit, and will Information of vehicles, access station information are sent to the cloud Trail termination of station deployment；

The cloud Trail termination of (2A-2) access station receives the routing information that entrance lane charging system is sent；

(2A-3) access station cloud Trail termination inquires " charge station's information table ", all entities in section where obtaining the charge station Then routing information is passed to the cloud Trail termination of these entity charge stations deployment by charge station's information；These entity charge stations The cloud Trail termination of deployment is after receiving routing information, in addition " receiving time stamp " is saved in " routing information table "；

(2A-4) cloud Trail termination inquires " charge station's information table ", obtains all dummy charge stations in section where the charge station Then information inquires " section intermediate node table ", obtain the void in other the corresponding sections being connected to these phantom stations by node Quasi- station information；

(2A-5) for the phantom station in other sections obtained " step (2A-4) ", inquiry " charge station's information table " determines empty The type at quasi- station is identification point phantom station or non-identifying phantom station；

(2A-6) for other sections obtained " step (2A-4) " phantom station, if type is identification point phantom station, " charge station's information table " is then inquired, all entity charge station information in section, then pass routing information where obtaining the phantom station Pass the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving path After information, in addition " receiving time stamp " saves afterwards；

(2A-7) for other sections obtained " step (2A-4) " phantom station, if type is that non-identification point is virtual It stands, then inquires " charge station's information table ", all entity charge station information in section where obtaining the phantom station, then by routing information Pass to the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving road After diameter information, in addition " receiving time stamp " saves afterwards；

(2A-8) for other sections obtained " step (2A-4) " phantom station, if type is that non-identification point is virtual It stands, (2A-4)-(2A-8) step is repeated for each of these phantom stations phantom station and is iterated, until all phantom stations Until not being non-identification point phantom station；

Information of vehicles and routing information are transferred to cloud by (2A-9).

As a preferred technical solution, in step (2)-(B), the acquisition of identification point routing information and transmitting process flow It is as follows:

(2B-1) identifies dot system and passes through the information of vehicles of the identification point by the identification of radio frequency roadside unit, and vehicle is believed Breath, identification point information are sent to the cloud Trail termination of some charge station of the affiliated section of identification point deployment；

(2B-2) cloud Trail termination receives the routing information that mark dot system is sent；

(2B-3) cloud Trail termination inquires " the routing information table " of this equipment, the vehicle previous path information is obtained, with mark Know the routing information that dot system is sent to merge, generates the newest routing information of vehicle；If this equipment query is less than corresponding vehicle Previous path information is obtained from cloud；

(2B-4) cloud Trail termination inquiry " identification point interval table " obtain section encoded information where the identification point and Correlated identities point block information；

(2B-5) cloud Trail termination is inquired " charge station's information table " according to road section information where identification point, obtains the mark All entity charge station information in section where point；Then, according to section entity where the identification point block information and identification point Which entity erect-position charge station's information, inquiry " Fee Schedule in section " determine in the front of identification point, i.e., from identification point section void Quasi- station is to field " combination of ETC identification point " includes that the identification point just illustrates the entity in Fee Schedule record in the section between entity station Otherwise erect-position is located at identification point rear in front of identification point；Routing information is passed to the entity that those are located at mark front to receive Take the cloud Trail termination of station deployment；The cloud Trail termination of these entity charge stations deployment is after receiving routing information, in addition " connecing Receive timestamp " it is saved in " routing information table "；

(2B-6) cloud Trail termination obtains the identification point according to road section information inquiry " charge station's information table " where identification point All dummy charge station information in place section；Then, virtually received according to section where the identification point block information and identification point Take station information, inquiry " Fee Schedule in section " determines which phantom station is located at the front of identification point, i.e., virtual from identification point section Field " combination of ETC identification point " includes that the identification point just illustrates the phantom station in Fee Schedule of standing into the section between phantom station record In front of identification point, otherwise it is located at identification point rear；For being located at the phantom station in front of identification point, " section intermediate node is inquired Table " obtains the phantom station information in other the corresponding sections being connected to these phantom stations by node；

(2B-7) for the phantom station in other sections obtained " step (2B-6) ", inquiry " charge station's information table " determines empty The type at quasi- station is identification point phantom station or non-identifying phantom station；

(2B-8) for other sections obtained " step (2B-6) " phantom station, if type is identification point phantom station, " charge station's information table " is then inquired, all entity charge station information in section, then pass routing information where obtaining the phantom station Pass the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving path After information, in addition " receiving time stamp " saves afterwards；

(2B-9) for other sections obtained " step (2B-6) " phantom station, if type is that non-identification point is virtual It stands, then inquires " charge station's information table ", all entity charge station information in section where obtaining the phantom station, then by routing information Pass to the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving road After diameter information, in addition " receiving time stamp " saves afterwards；

The phantom station in other sections that (2B-10) obtains previous step obtains if type is non-identification point phantom station All dummy charge station information in section where taking the phantom station, then inquire " section intermediate node table ", obtain and these phantom stations Pass through the phantom station information in other corresponding sections that node is connected to；

(2B-11) inquires " charge station's information table " and determines for the phantom station in other sections obtained " step (2B-10) " The type of phantom station is identification point phantom station or non-identifying phantom station；

(2B-12) for other sections obtained " step (2B-10) " phantom station, if type is that identification point is virtual It stands, then inquires " charge station's information table ", all entity charge station information in section where obtaining the phantom station, then by routing information Pass to the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving road After diameter information, in addition " receiving time stamp " saves afterwards；

(2B-13) for other sections obtained " step (2B-10) " phantom station, if type is that non-identification point is virtual It stands, then inquires " charge station's information table ", all entity charge station information in section where obtaining the phantom station, then by routing information Pass to the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving road After diameter information, in addition " receiving time stamp " saves afterwards；

(2B-14) for other sections obtained " step (2B-10) " phantom station, if type is that non-identification point is virtual It stands, (2B-10)-(2B-14) step is repeated for each of these phantom stations phantom station and is iterated, until all virtual Stand be not non-identification point phantom station until；

(2B-15) information of vehicles and routing information are transferred to cloud.

As a preferred technical solution, in step (9), pass cost is calculated according to actual travel path specifically:

(9-1) exit lane charging system obtains the forward driving path of vehicle from cloud Trail termination, if cloud path is whole There is no the routing information of corresponding vehicle in end, is then obtained from cloud；

This charge station is determined that vehicle completely travels road in conjunction with the run routing information of acquisition as outlet station by (9-2) Diameter；

(9-3) inquires " charge station's interval table " and obtains access station, the corresponding charge station's block information of outlet station；

(9-4) merges identical phantom station according to the corresponding charge station's block information of access station, excludes invalid endpoint, is formed Entrance is access station and outlet is " the access station section set " of access station section phantom station；

(9-5) is inquired " section intermediate node table " according to the outlet virtual station in the set of access station section, and it is virtual to obtain these It stands corresponding " access station section node set "；

(9-6) gathers according to access station section, inquires " Fee Schedule in section ", obtains " access station section rate set "；

(9-7) merges identical phantom station according to the corresponding charge station's block information of outlet station, excludes invalid endpoint, is formed Entrance is outlet station section phantom station and outlet is " the outlet station section set " of outlet station；

(9-8) is inquired " section intermediate node table " according to the ingress virtual station in the set of outlet station section, and it is virtual to obtain these It stands corresponding " outlet station section node set "；

(9-9) gathers according to outlet station section, inquires " Fee Schedule in section ", obtains " outlet station section rate set "；

(9-10) inquires " identification point interval table " acquisition by way of " the identification point Interval Set of the corresponding each identification point of identification point It closes "；

(9-11) gathers according to identification point section, inquires " section intermediate node table ", obtains block information both ends phantom station pair " the identification point section node set " answered；

(9-12) is inquired " Fee Schedule in section " according to identification point block information, obtains block information both ends phantom station pair " the identification point section rate set " answered；

(9-13) according to access station, mark 1, mark 2 ..., identification point N, outlet station, vehicle driving sequence, in accordance with previous Section outlet station connects the principle of temporal sequence of next section access station, and judging corresponding path node set, which is equal, which not phase Deng；It is equal illustrate section be it is continuous, it is unequal to illustrate that section is discontinuous；

(9-14) connects the principle of temporal sequence of next section access station according to previous section outlet station for discontinuous section, It inquires " path basis Fee Schedule " and obtains corresponding shortest path, while inquiring " path segments calculating parameter table " with the presence or absence of not The shortest path of identified point, if there is the path without identification point, then shortest path and small without the identification point path amount of money Person is preferential, if the amount of money is the same, takes shortest path；

(9-15) according to access station, mark 1, mark 2 ..., identification point m, outlet station, vehicle driving sequence, in accordance with previous Section outlet station connects the principle of temporal sequence of next section access station, according to section node continuation property, successively stitching path information, this Sample finally obtains Ni*N1* ... * Nm*No possible path, wherein Ni is access station interval number, and N1 is the section of identification point 1 Number ..., Nm are the interval number for identifying m, and No is the interval number of outlet station；

(9-16) selects vehicle driving road from this Ni*N1* ... * Nm*No possible path according to the principle of most short rate Diameter；Then inquire " Fee Schedule in section ", obtain the section path Zhong Ge in rate, add up to, finally obtain vehicle pass cost, Each section routing information, fee distribution information.

Compared with the prior art, the invention has the following advantages and beneficial effects:

It compares various ambiguous paths and accurately identifies technology, the present invention is more satisfactory realization skill using radio-frequency technique Art has precision height, high-efficient, wide coverage.

Currently, prior art video Car license recognition and RFID identification technology are most popular, but there is also this for both technologies Certain drawback.And other Path Recognition technology such as GPS identification technologies, 5.8G DSRC unified path identification technology, electronics vehicle There is also certain disadvantages for board identification technology etc..

To vehicle in the frequency range mode identified the present invention is based on the cloud path system of Radio Frequency Identification Technology by electronic information The storage and transmitting of run routing information can't be affected because of weather external environment, and the work of license plate recognition technology Condition is influenced by site environment, and accuracy of identification is not high under the adverse circumstances such as light is poor.Video vehicle license plate recognition is to utilize Video camera acquisition includes the vehicle image of license plate, is then partitioned into the rectangular area comprising licence plate character, and carries out two-value and incite somebody to action It is divided into single character, identifies license plate number and license plate color by mode identification technology.The technical requirements are public in high speed Charge station's entrance on road, outlet are designed with high-definition camera and license auto-recognition system equipment, work at ambiguity path identification point It is as principle: when vehicle reaches entrance, obtains license plate number, be then uploaded to superior system；It is same to acquire when at identified point License board information is uploaded；When reaching outlet, according to the license board information that acquisition identifies, matched in license plate database, Entrance, identification point and the vehicle line of outlet can be formed after successful match.Thus the accuracy of identification of the identification technology is not high, is disliked Bad weather condition influences big.

RFID identification technology is contactless automatic identification technology, using radiofrequency signal automatic identification target object and is obtained Take related data.It is usually necessary to use the compound password cards of the IC card of integrated 433MHz electronic tag and 13.56MHz to deposit for the technology Store up vehicle driving path (entrance, identification point), although and 433MHz RFID identification technology the lane MTC application very at Function, but the ETC vehicle of 5.8G can not be applied to, it needs in addition to dispose 5.8G mark equipment, leads to increased costs；In addition, The 433Mhz frequency range that RFID identification technology uses, electronic license plate identification technology is using 840~845Mhz (or 920~925MHz) frequency Section, these frequency ranges do not orient ability to communicate, carry out information exchange using broadcast mode, cannot distinguish between the vehicle of different driving directions ?.And after using the cloud path system based on Radio Frequency Identification Technology, various different radio frequency Path Recognition technology (e.g., 5.8G DSRC Unified path identification technology, electronic license plate identification technology etc.) it can be merged on system Construction, and pass in and out highway Vehicle no longer need to carry it is various storage driving paths medium (e.g., compound password card, CPU stored value card or CPU account cards Deng), it solves the problems, such as that RFID exists, realizes fusion of the highway ambiguous path on system Construction, reduce construction investment Cost and operation cost.

GPS identification technology then needs to pass through positioning based on GPS satellite positioning, mobile communication technology and digital navigation map System and vehicle-mounted GPS apparatus indicate the driving path of vehicle in road network, and are marked according to determining driving path and charge Standard is to vehicle charge tolls.In the technology concrete application, usually there is two ways, one is require vehicle to install GPS Identification and wireless communication terminal, this mode are difficult to realize；Second is the compound passage for researching and developing integrated GPS module and IC module Card is similar to the compound password card of RFID, and there are two technical problems for this method, first is that in order to improve the service life of battery, It needs to study battery and wakes up problem；Second is that the thickness problem of compound password card.And use the cloud path based on Radio Frequency Identification Technology System does not need vehicle installation extras, without the medium for carrying various storage driving paths, is more not required to consider research and development The problem of compound password card.

In the near term, 5.8G DSRC unified path identification technology can solve the problems, such as MTC and ETC Path Recognition simultaneously, be Comparatively ideal scheme.But from the point of view of long long term, with the construction of smart city and the development of radio-frequency technique, country can be by The application of step increasing electronic license plate technology, the promotion standardized process of electronic license plate, and the cloud path based on Radio Frequency Identification Technology System can then solve the problems, such as electronic license plate application process, by various different radio frequency Path Recognition technology (e.g., 5.8G DSRC unified path identification technology, electronic license plate identification technology etc.) it is merged on system Construction, comply with Development Technology fusion Allow passive electronic license plate technology that will become the preferred plan for solving the problems, such as Path Recognition.

The problem of electronic license plate identification technology is no directionality.It uses 840~845Mhz (or 920~925MHz) frequency Section, these frequency ranges do not orient ability to communicate, carry out information exchange using broadcast mode, cannot distinguish between the vehicle of different driving directions ?.The problem of for this technology, routing information can by between the cloud Trail termination in cloud transfer mode optimized It solves, the various different radio frequency Path Recognition technologies such as electronic license plate identification technology is merged on system Construction.

Detailed description of the invention

Fig. 1 is cloud path system structure chart of the invention；

Fig. 2 is cloud path implementation method flow chart of the invention.

Specific embodiment

Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited In this.

Embodiment

As shown in Figure 1, the present invention is based on the cloud path system of Radio Frequency Identification Technology, including entrance lane charging system, mark Know dot system, exit lane charging system, radio frequency roadside unit, cloud Trail termination and cloud path cloud；

The entrance lane charging system is deployed in expressway access lane, connects radio frequency roadside unit, passes through radio frequency Roadside unit identification enters the information of vehicles (license plate number, license plate color, vehicle) of highway.Entrance the lane in which the drivers should pay fees system from Radio frequency roadside unit is obtained into after the information of vehicles of highway, sends information of vehicles, access station information to be deployed in this The cloud Trail termination of charge station, then be passed ahead to information of vehicles and access information according to road network information by the cloud Trail termination The cloud Trail termination for the charge station that may be reached.Transmitting principle is only delivered to reachable without identification point from the charge station The charge station in section where all charge stations and next possible identification point.Routing information caused by point failure etc. is identified in order to prevent Transmitting is discontinuous and lack, and cloud Trail termination is in addition to other than transmission path information in front of traveling, also to cloud transmission path information, In case being obtained when cloud Trail termination does not find vehicle route information from cloud.

The mark dot system is deployed in section of the highway there are ambiguous path, connects radio frequency roadside unit, leads to Cross the information of vehicles (license plate number, license plate color, vehicle) that the identification of radio frequency roadside unit enters highway.Identify dot system from Radio frequency roadside unit obtains after the information of vehicles of the identification point vehicle, sends deployment for information of vehicles, identification point information In the cloud Trail termination of certain specified charge station in this section, then previous vehicle driving path is merged by the cloud Trail termination and is generated The newest driving path of vehicle, and by newest driving path according to road network information be passed ahead to may arrival charge station cloud road Diameter terminal.It is only delivered to from the charge station without road where the reachable all charge stations of identification point and next possible identification point The charge station of section.If cloud Trail termination can not find the routing information of corresponding vehicle, say when merging previous vehicle driving path Failure is transmitted in bright previous identification point or access station path, then is obtained by cloud path cloud.Point failure etc. is identified in order to prevent to draw The routing information transmitting risen is discontinuous and lacks, and cloud Trail termination is other than the transmission path information in front of travelling, also to cloud Transmission path information, in case being obtained when cloud Trail termination does not find vehicle route information from cloud.

The exit lane charging system is deployed in expressway exit lane, connects radio frequency roadside unit, passes through radio frequency Roadside unit identifies the information of vehicles (license plate number, license plate color, vehicle) for being driven out to highway.Export the lane in which the drivers should pay fees system from After radio frequency roadside unit obtains the information of vehicles of approaching end of motorway highway, obtained from the cloud Trail termination for being deployed in the charge station Vehicle running path information (access information, identification point information) forms complete vehicle driving road in conjunction with the outlet information of our station Diameter (entrance, identification point, outlet) calculates pass cost according to driving path, collects pass cost, clearance vehicle.If cloud path is whole End can not find the routing information of corresponding vehicle, illustrates previous identification point or access station path transmitting failure, then passes through cloud path cloud End obtains.

The radio frequency roadside unit, information of vehicles (license plate number, license plate color, the vehicle passed through by radio-frequency technique identification Type etc.), it is then passed to the host computer (such as lane toll system, mark dot system) of connection radio frequency roadside unit.

The cloud Trail termination is one of the core of cloud path system.Storing freeway network information, (e.g., section is received Take station information, interchange or section connection point information, identification point information etc.).Receive entrance lane system or mark dot system The vehicle route information sent, then according to road network information, the cloud Trail termination for the charge station that may be reached to traveling front Transmit vehicle route information；In order to avoid unlimited endless loop occurs in routing information forwarding, cloud Trail termination is sending road forwards When diameter information, only send routing information to without section where the reachable all charge stations of identification point and next possible identification point Charge station；It is discontinuous and lack to identify the transmitting of routing information caused by point failure etc. in order to prevent, cloud Trail termination in addition to Outside the cloud Trail termination transmission path information of traveling front, also to cloud transmission path information.In outlet charge station, cloud Trail termination Vehicle running path information is provided to lane toll system, is used for charging.If cloud Trail termination does not respond to vehicle driving Routing information illustrates previous identification point or access station path transmitting failure, is then obtained by cloud path cloud.

Cloud path cloud, is deployed in Back end data center, is one of the core of cloud path system.Cloud path cloud master Wanting function is to be managed to cloud Trail termination, including deployment manages, parameter management, condition managing；In addition, cloud also stores vehicle Run routing information, in case query path uses when vehicle running path lacks because of caused by identification point or network failure.

As described in Figure 2, the implementation method of the cloud path system based on Radio Frequency Identification Technology, includes the following steps:

(2) for vehicle when passing through access station or identification point, radio frequency roadside unit passes through vehicle by Radio Frequency Identification Technology acquisition Information, and by collected information of vehicles, access station coding or identification point coding be sent to cloud Trail termination: (A) for Collected information is sent to the cloud Trail termination of our station deployment, is deposited by the cloud Trail termination by access station, radio frequency roadside unit It stores up and forwards vehicle route information forward；(B) for identification point, collected information is sent to identification point by radio frequency roadside unit The cloud Trail termination of specified certain charge station deployment in affiliated section, then previous path is spliced by the cloud Trail termination, store and is turned It dispatches a car a routing information.

Cloud Trail termination is receiving entrance the lane in which the drivers should pay fees system or identification point system acquisition and the routing information sent Afterwards, according to freeway network information, to the cloud Trail termination transmission path information for being deployed in charge station in front of vehicle driving.

In order to avoid there is unlimited endless loop in routing information transmitting, cloud Trail termination in transmitting path information forwards, The charge station without section where the reachable all charge stations of identification point and next possible identification point only is sent by routing information, Specific processing method are as follows:

(2-1) entrance lane charging system enters the information of vehicles of highway by the identification of radio frequency roadside unit, and will Information of vehicles, access station information are sent to the cloud Trail termination of station deployment；

The cloud Trail termination of (2-2) access station receive routing information that entrance lane charging system sends (information of vehicles, Access information)；

(2-3) access station cloud Trail termination inquires " charge station's information table (Station), as shown in table 1-1 ", obtains the receipts Routing information, is then passed to the cloud path of these entity charge stations deployment by all entity charge station information in section where taking station Terminal；The cloud Trail termination of these entity charge stations deployment is after receiving routing information, in addition " receiving time stamp " is saved in In " routing information table (PathInfo) ", as shown in table 1-2；

Table 1-1 charge station information table (Station)

Serial number

Field name

Alias

Data type

Byte wide

It forces

Major key

1

Section coding

RoadID

Smallint

2

TRUE

PK

2

It stands coding

StationID

Integer

4

TRUE

PK

3

Station name

StationName

Char

8

TRUE

4

Cloud Trail termination IP

PathTerminal IP

Char

15

TRUE

5

Version number

Version

Integer

4

TRUE

PK

6

Enabling time

StartTime

DateTime

8

TRUE

7

Charge station's type

StationType

Tinyint

1

TRUE

8

State

Status

SmallInt

2

FALSE

9

Branch coding

BranchID

Tinyint

1

TRUE

Table 1-2 routing information table (PathInfo)

Serial number

Field name

Alias

Data type

Byte wide

It forces

Major key

1

License plate number

PlateNo

char

12

TRUE

PK

2

License plate color

PlateColor

tinyint

1

TRUE

PK

3

Vehicle

CarType

tinyint

1

TRUE

4

Entrance section coding

EnRoadID

Smallint

2

TRUE

5

Entrance charge station coding

EnStationID

Integer

4

TRUE

6

Identification point combination

FlagComb

varchar

256

TRUE

7

Receiving time stamp

TimeStamp

DateTime

8

TRUE

(2-4) cloud Trail termination inquires " charge station's information table (Station) ", all void in section where obtaining the charge station Quasi- charge station's information, then inquires " section intermediate node table (Node) ", and acquisition is connected to these phantom stations by node corresponding Other sections phantom station information；

(2-5) inquires " charge station's information table for the phantom station in other sections obtained " step (2-4) " (Station) " type for determining phantom station is identification point phantom station or non-identifying phantom station；

(2-6) for other sections obtained " step (2-4) " phantom station, if type is identification point phantom station, It inquires " charge station's information table (Station) ", all entity charge station information in section where obtaining the phantom station, then by path Information passes to the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving To after routing information, in addition " receiving time stamp " saves afterwards；

(2-7) for other sections obtained " step (2-4) " phantom station, if type is non-identification point phantom station, " charge station's information table (Station) " is then inquired, all entity charge station information in section where obtaining the phantom station, then by road Diameter information passes to the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is connecing After receiving routing information, in addition " receiving time stamp " saves afterwards；

(2-8) for other sections obtained " step (2-4) " phantom station, if type is non-identification point phantom station, For each of these phantom stations phantom station repeat (2-4)-(2-8) step be iterated, until all phantom stations not Until being non-identification point phantom station.

(2-9) information of vehicles and routing information are transferred to cloud.

The cloud Trail termination for the charge station that cloud Trail termination may be reached to traveling front transmits vehicle route information, selection The foundation for transmitting target is exactly freeway network information.So the setting of freeway network information is quite crucial.

In cloud path system, freeway network information is described by the element of four aspects: (A) charge station information, (B) charge station's block information, (C) identification point block information, the section (D) intermediate node information.

A: about charge station's information, charge station includes entity charge station and dummy charge station.Entity charge station is exactly high speed The charge station actually laid on highway；Dummy charge station refers to that the section is empty in the charge station set up with other section connecting points Quasi- to exist, mainly for use of interconnecting between charging in section and description section, furthermore dummy charge station be can also be used to The identification point of section laying is described.

Charge station's information describes the relevant information of charge station, and section coding, charge station compile where specifically including that charge station Code, charge station's type, the cloud Trail termination IP address for disposing the charge station.Charge station's information detailed content is detailed in " charge station's letter Cease table ".

Charge station's classification of type " entity charge station ", " identification point phantom station ", " non-identifying phantom station ", " ETC mark The types such as point ", " MTC identification point ".Wherein only have " entity charge station " to dispose cloud Trail termination.

The difference of " identification point phantom station " and " non-identifying phantom station " is: section where identification point phantom station is deployed with Identification point is not disposed in identification point, section where non-identifying phantom station.It can control cloud Trail termination by the type attribute To the depth of traveling front transmitting vehicle route information, prevent from falling into the endless loop of information transmitting.

B: about charge station's block information, charge station's block information describes which two reachable section entity charge station is located at Between the phantom station in the affiliated section of the charge station that intermediate node is included.

Charge station's block information includes: section coding, coding of standing, closes on phantom station coding 1, closes on phantom station coding 2, in detail It is shown in Table 2 " charge station's interval table (StationZone) ".Wherein " closing on phantom station coding 1 ", " closing on phantom station coding 2 " difference The phantom station in the affiliated section of the charge station that the reachable section intermediate node in description both ends is included.

2 charge station's interval table (StationZone) of table

Section intermediate node describes the connectivity between section, and section intermediate node is combined by the corresponding dummy charge station in each section Composition indicates that another section dummy charge station can be reached from certain section dummy charge station.

Based on section intermediate node and the characteristics of dummy charge station, charge station's block information physical meaning is as follows:

If (a) corresponding charge station's block information meaning: the entity station enters height from the charge station as access station After fast highway, it can be driven out to the section from the phantom station that block information describes and reach and travelled on other section.

If (b) corresponding charge station's block information meaning: the entity station passes through road from other section as outlet station Section intermediate node can drive into section belonging to charge station from the phantom station that block information describes, and then be driven out to high speed from the charge station Highway.

C: identification point block information describes identification point and is located at the affiliated road of identification point which two " section intermediate nodes " are included Between the phantom station of section.

Identification point block information includes: identification point number, affiliated section, access station number, outlet station number, and see Table 3 for details " identification point interval table (FlagZone) ".Wherein " access station number ", " outlet station number " describe both ends " section segmentum intercalaris respectively The phantom station in the affiliated section of the identification point that point " is included.

3 identification point interval table (FlagZone) of table

Note: mark vertex type: 0--RFID identification point；1--ETC identification point.When for ETC free flow, identification point, vehicle Outlet station is driven towards from access station；When for RFID mark, not subentry, export direction.

Identification point block information physical meaning are as follows: vehicle is from a phantom station (such as " entrance in identification point block information Stand coding " specified phantom station) section is driven into, from another phantom station (such as " outlet station coding " specified phantom station) It is driven out to the section, by the identification point.

D: about section intermediate node information, section intermediate node information describes the connectivity between section, section intermediate node by Each corresponding dummy charge station group in section is combined into.

Section intermediate node information includes: node serial number, section coding 1, coding 1 of standing, section coding 2, coding 2 of standing, and is detailed in Table 4 " section intermediate node table (Node) "." node serial number " identifies certain a road section intermediate node, represents an interchange or section Tie point；A record represents the combination of a pair of of phantom station in the intermediate node table of section, indicates " the coding of standing from " section coding 1 " 1 " " coding 2 of stand " that can reach " section coding 2 " by the node (or passes through and is somebody's turn to do from " coding 2 of stand " of " section coding 2 " Node can reach " coding 1 of standing " of " section coding 1 ").

4 section intermediate node table (Node) of table

The acquisition of identification point routing information and transmitting process flow are as follows:

(3-1) identifies dot system and passes through the information of vehicles of the identification point by the identification of radio frequency roadside unit, and vehicle is believed Breath, identification point information are sent to the cloud Trail termination of some charge station of the affiliated section of identification point deployment；

(3-2) cloud Trail termination receives the routing information (information of vehicles, identification point information) that mark dot system is sent；

(3-3) cloud Trail termination inquires " routing information table (PathInfo) " of this equipment, obtains the vehicle previous path Information, the routing information sent with mark dot system merge, and generate the newest routing information of vehicle；If this equipment query is not To corresponding vehicle previous path information, obtained from cloud；

(3-4) cloud Trail termination inquiry " identification point interval table (FlagZone) " obtains the section coding where the identification point Information and correlated identities point block information；

(3-5) cloud Trail termination is inquired " charge station's information table (Station) ", is obtained according to road section information where identification point All entity charge station information in section where taking the identification point；Then, according to where the identification point block information and identification point Which entity erect-position section entity charge station information, inquiry table 5 " Fee Schedule (RoadPrice) in section " determine in identification point (field " combination of ETC identification point " includes in Fee Schedule record in from identification point section phantom station to the section entity station in front The identification point just illustrates that the entity erect-position in front of identification point, is otherwise located at identification point rear)；Routing information is passed to those Positioned at the cloud Trail termination of the entity charge station deployment in mark front；The cloud Trail termination of these entity charge stations deployment is receiving To after routing information, in addition " receiving time stamp " is saved in " routing information table (PathInfo) "；

Fee Schedule (RoadPrice) in 5 section of table

(3-6) cloud Trail termination is obtained according to road section information inquiry " charge station's information table (Station) " where identification point All dummy charge station information in section where the identification point；Then, according to road where the identification point block information and identification point Section dummy charge station information, inquiry " Fee Schedule (RoadPrice) in section " determine which phantom station is located at the front of identification point (field " combination of ETC identification point " includes the mark in Fee Schedule record in from identification point section phantom station to the section phantom station Know point and just illustrate that the phantom station is located in front of identification point, be otherwise located at identification point rear)；It is virtual in front of identification point for being located at It stands, inquires " section intermediate node table (Node) ", obtain the void in other the corresponding sections being connected to these phantom stations by node Quasi- station information；

(3-7) inquires " charge station's information table for the phantom station in other sections obtained " step (3-6) " (Station) " type for determining phantom station is identification point phantom station or non-identifying phantom station；

(3-8) for other sections obtained " step (3-6) " phantom station, if type is identification point phantom station, It inquires " charge station's information table (Station) ", all entity charge station information in section where obtaining the phantom station, then by path Information passes to the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving To after routing information, in addition " receiving time stamp " saves afterwards；

(3-9) for other sections obtained " step (3-6) " phantom station, if type is non-identification point phantom station, " charge station's information table (Station) " is then inquired, all entity charge station information in section where obtaining the phantom station, then by road Diameter information passes to the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is connecing After receiving routing information, in addition " receiving time stamp " saves afterwards；

The phantom station in other sections that (3-10) obtains previous step obtains if type is non-identification point phantom station Take all dummy charge station information in section where the phantom station, then inquire " section intermediate node table (Node) ", obtain and these The phantom station information in other corresponding sections that phantom station is connected to by node；

(3-11) inquires " charge station's information table for the phantom station in other sections obtained " step (3-10) " (Station) " type for determining phantom station is identification point phantom station or non-identifying phantom station；

(3-12) for other sections obtained " step (3-10) " phantom station, if type is identification point phantom station, " charge station's information table (Station) " is then inquired, all entity charge station information in section where obtaining the phantom station, then by road Diameter information passes to the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is connecing After receiving routing information, in addition " receiving time stamp " saves afterwards；

(3-13) for other sections obtained " step (3-10) " phantom station, if type is that non-identification point is virtual It stands, then inquires " charge station's information table (Station) ", all entity charge station information in section where obtaining the phantom station, then Routing information is passed to the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment After receiving routing information, in addition " receiving time stamp " saves afterwards；

(3-14) for other sections obtained " step (3-10) " phantom station, if type is that non-identification point is virtual It stands, (3-10)-(3-14) step is repeated for each of these phantom stations phantom station and is iterated, until all phantom stations Until not being non-identification point phantom station.

(3-15) information of vehicles and routing information are transferred to cloud.

(4) the cloud Trail termination of traveling front charge station deployment receives the cloud Trail termination hair of connection path acquisition equipment After the vehicle route information sent, store spare.

(5) it since freeway network extends in all direction, is connected with each other, in order to avoid infinitely extremely following occurs in routing information forwarding Ring, connection path acquire the cloud Trail termination of equipment in forward-path information forward, are only forwarded to reachable without identification point The charge station in section where all charge stations and next identification point.

(6) if causing routing information that cannot successively transmit downwards due to identifying point failure, connection path acquisition is caused to set Standby cloud Trail termination is after receiving the information of vehicles that identification point is sent, when cannot obtain the vehicle previous path information, this The path Shi Congyun cloud obtains.Repair process uses when cloud path cloud transmits abnormal as path, to reduce the letter on network Breath stream.

(7) since there are multiple circuits in network, for same vehicle, certain cloud Trail termination may will receive one Multiple routing informations that cloud Trail termination is sent retain one.

(8) in Radio Frequency Identification Technology, 5.8G DSRC unified path identification technology has directionality, electronic license plate identification Technology does not have directionality.For 5.8G identification point, routing information is successively transmitted between cloud Trail termination along driving direction；For Electronic license plate identification technology, due to not having directionality, routing information is in cloud Trail termination-" cloud path cloud "-cloud Trail termination It is transmitted between three.

Exit lane charging system calculates vehicle according to the routing information (access station, identification point) obtained from cloud Trail termination Pass cost.

In cloud path system, highway rate information: rate in the section (A) is described by the element of three aspects, (B) path basis rate, (C) path segments calculating parameter.

See Table 5 for details " Fee Schedule (RoadPrice) in section ".Rate mainly describes to charge two-by-two in each section in section It stands the distance between (including entity station and phantom station), expense, and the information such as identification point passed through.

About path basis rate, see Table 6 for details " path basis Fee Schedule (MultiPathPrice) ".Path basis rate Shortest path rate between main description freeway network Zhong Liangge charge station (including entity station and phantom station).But by In road network complexity, if institute is all combined there are two charge station, such total number of records may reach more than one hundred million, 1,000,000,000 ranks, It is even higher, very big resource and time loss and difficulty are brought to storage, lookup information.In cloud path system, path base Plinth rate only stores following situation:

(1) the shortest path rate information between entity charge station；

(2) phantom station (including mark phantom station and non-identifying phantom station) arrives mark phantom station shortest path rate information；

(3) phantom station is identified to charge station's shortest path rate；

(4) up to farthest rate.

6 path basis Fee Schedule (MultiPathPrice) of table

Note: rate types definition: the shortest path rate of 0-- charge station to charge station；1-- phantom station to mark phantom station Shortest path rate；2-- identifies phantom station to the shortest path rate of charge station；3-- is up to farthest rate；

Path basis rate be mainly used in order in the case where identification point may be lost, determine Liang Ge charge station or phantom station it Between shortest path rate.

About path segments calculating parameter, see Table 7 for details " path segments calculating parameter table (RoadPathSectionInfo)".Path segments calculating parameter mainly describes freeway network Zhong Liangge charge station (packet Include entity station and phantom station) between the shortest path rate that may be present without identification point.

7 path segments calculating parameter table (RoadPathSectionInfo) of table

Note: (1) without the record of identification point, identification point code field fills out 0

(2) vertex type: 0--RFID identification point is identified；1--ETC identification point.When for ETC free flow, identification point, vehicle Outlet station is driven towards from access station；When for RFID mark, not subentry, export direction.

Why there is such shortest path without identification point, be primarily due to out rate to construction and operation at The factors such as this, there is no the identification points of deployment ambiguous path to cause in some sections.

About driving path restore and pass cost calculate, using path restore and pass cost calculating principle,

Vehicle when being driven out to highway, believe from the path that cloud Trail termination obtains vehicle driving by exit lane charging system Cease (access station, identification point), in conjunction with this charge station be used as outlet station, form vehicle driving complete driving path (access station, By way of identification point, outlet station).

Exit lane charging system according to complete driving path (access station, by way of identification point, outlet station), road network information, Rate information calculates the pass cost of vehicle.

Calculating principle is as follows:

1. there is actual travel path, pass cost is calculated by actual travel path；

2., for no section for losing identification point, calculating pass cost by Actual path if losing identification point；For losing The section for having lost identification point calculates pass cost by shortest path.

3. may have a plurality of reachable path from access station to outlet station；For there is a plurality of reachable path, choose most Short path carries out calculating pass cost.

There may be the paths without identification point between ④Liang Ge charge station or phantom station, so determining Liang Ge charge station Or between phantom station when shortest path, need to combine the shortest path and " path segments calculating parameter " in " path basis rate " In the path without identification point, if there is the path without identification point, it then follows following principle: (A) shortest path and without This is preferential for identification point path network minimal；(B) expense is equal if two, takes shortest path as Liang Ge charge station or phantom station Between path.

Exit lane charging system carries out vehicle running path recovery and calculating pass cost process is as follows:

This charge station is determined that vehicle completely travels road in conjunction with the run routing information of acquisition as outlet station by (9-2) Diameter (access station, by way of identification point, outlet station)；

(9-3) inquires " charge station's interval table (StationZone) " and obtains access station, the corresponding charge station section of outlet station Information；

(9-5) inquires " section intermediate node table (Node) " according to the outlet virtual station in the set of access station section, obtains this A little phantom stations are corresponding " access station section node set "；

(9-6) gathers according to access station section, inquires " Fee Schedule (RoadPrice) in section ", obtains " access station section Rate set "；

(9-8) inquires " section intermediate node table (Node) " according to the ingress virtual station in the set of outlet station section, obtains this A little phantom stations are corresponding " outlet station section node set "；

(9-9) gathers according to outlet station section, inquires " Fee Schedule (RoadPrice) in section ", obtains " outlet station section Rate set "；

(9-10) inquires " identification point interval table (FlagZone) " and obtains " marking by way of the corresponding each identification point of identification point Know point section set "；

(9-11) gathers according to identification point section, inquires " section intermediate node table (Node) ", and it is empty to obtain block information both ends It is quasi- to stand corresponding " identification point section node set "；

(9-12) is inquired " Fee Schedule (RoadPrice) in section " according to identification point block information, obtains block information two Hold phantom station corresponding " identification point section rate set "；

(9-14) connects the principle of temporal sequence of next section access station according to previous section outlet station for discontinuous section, It inquires " path basis Fee Schedule (MultiPathPrice) " and obtains corresponding shortest path, while inquiring " path segments calculating Parameter list (RoadPathSectionInfo) " whether there is the shortest path without identification point.If there is without identification point Path, then shortest path and preferential without the identification point path small person of the amount of money, if the amount of money is the same, takes shortest path；

(9-15) according to access station, mark 1, mark 2 ..., identification point m, outlet station, vehicle driving sequence, in accordance with previous Section outlet station connects the principle of temporal sequence of next section access station, according to section node continuation property, successively stitching path information, this Sample finally obtains Ni*N1* ... * Nm*No possible path, wherein Ni is access station interval number, and N1 is the section of identification point 1 Number ..., Nm are the interval number for identifying m, and No is the interval number of outlet station.

(9-16) selects vehicle driving road from this Ni*N1* ... * Nm*No possible path according to the principle of most short rate Diameter；Then " Fee Schedule (RoadPrice) in section " is inquired, obtains the rate in the section path Zhong Ge, added up to, finally obtain vehicle Pass cost, each section routing information, fee distribution information.

The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention, It should be equivalent substitute mode, be included within the scope of the present invention.

Claims

1. the cloud path system based on Radio Frequency Identification Technology, which is characterized in that including entrance lane charging system, identification point system System, exit lane charging system, radio frequency roadside unit, cloud Trail termination and cloud path cloud,

The entrance lane charging system is deployed in expressway access lane, connects radio frequency roadside unit, passes through radio frequency trackside Unit identification enters the information of vehicles of highway, and entrance lane charging system is obtained from radio frequency roadside unit into highway Information of vehicles after, send information of vehicles, access station information on the cloud Trail termination for being deployed in the charge station, the road Zai Yougaiyun Information of vehicles and access information are passed ahead to the cloud Trail termination for the charge station that may be reached by diameter terminal according to road network information；

The mark dot system is deployed in section of the highway there are ambiguous path, radio frequency roadside unit is connected, by penetrating The identification of frequency roadside unit enters the information of vehicles of highway, and mark dot system is obtained from radio frequency roadside unit by the identification point After the information of vehicles of vehicle, it sends information of vehicles, identification point information in the cloud for being deployed in certain specified charge station in this section Trail termination, then previous vehicle driving path is merged by the cloud Trail termination and generates the newest driving path of vehicle, and will most newline Sail the cloud Trail termination that path is passed ahead to the charge station that may be reached according to road network information；

The exit lane charging system is deployed in expressway exit lane, connects radio frequency roadside unit, passes through radio frequency trackside Unit identifies the information of vehicles for being driven out to highway, and exit lane charging system obtains approaching end of motorway from radio frequency roadside unit After the information of vehicles of highway, vehicle running path information is obtained from the cloud Trail termination for being deployed in the charge station, in conjunction with our station Outlet information forms complete vehicle running path, calculates pass cost according to driving path, collects pass cost, clearance vehicle；

The radio frequency roadside unit, the information of vehicles passed through by radio-frequency technique identification, then passes to the information of vehicles Connect the host computer of radio frequency roadside unit；

The cloud Trail termination is deployed in charge station, freeway network information is stored, for receiving entrance lane charging system Or the vehicle route information that mark dot system is sent, then according to road network information, the charge station that may be reached in front of travelling Cloud Trail termination transmit vehicle route information；

Cloud path cloud, is deployed in Back end data center, for being managed to cloud Trail termination, including deployment management, Parameter management and condition managing；In addition, cloud path cloud also stores vehicle running path information, in case because of identification point or net Query path uses when vehicle running path caused by network failure lacks.

2. the cloud path system based on Radio Frequency Identification Technology according to claim 1, which is characterized in that the cloud Trail termination Information of vehicles and access information are passed ahead to the cloud Trail termination foundation of the charge station of possible arrival according to road network information Principle are as follows:

It is only delivered to from the charge station without section where the reachable all charge stations of identification point and next possible identification point Charge station, it is discontinuous and lack to identify the transmitting of routing information caused by point failure etc. in order to prevent, cloud Trail termination in addition to Outside the transmission path information of traveling front, also to cloud transmission path information, in case not finding vehicle route in cloud Trail termination It is obtained when information from cloud.

3. the cloud path system based on Radio Frequency Identification Technology according to claim 1, which is characterized in that described and will most newline Sail path according to road network information be passed ahead to may arrival charge station cloud Trail termination in the principle transmitted are as follows:

It is only delivered to from the charge station without section where the reachable all charge stations of identification point and next possible identification point Charge station；If cloud Trail termination can not find the routing information of corresponding vehicle, explanation when merging previous vehicle driving path Failure is transmitted in previous identification point or access station path, then is obtained by cloud path cloud, is identified point failure etc. in order to prevent and is caused Routing information transmitting it is discontinuous and lack, cloud Trail termination is in addition to other than the transmission path information of traveling front, also to cloud biography Routing information is passed, in case obtaining when cloud Trail termination removes and do not find vehicle route information from cloud.

4. the cloud path system based on Radio Frequency Identification Technology according to claim 1, which is characterized in that charge in exit lane In system, if cloud Trail termination can not find the routing information of corresponding vehicle, illustrate previous identification point or the transmitting of access station path Failure is then obtained by cloud path cloud.

5. the cloud path system based on Radio Frequency Identification Technology according to claim 1, which is characterized in that in cloud Trail termination In, in order to avoid unlimited endless loop occurs in routing information forwarding, cloud Trail termination is in transmitting path information forwards, the road Jin Jiang Diameter information is sent to the charge station without section where the reachable all charge stations of identification point and next possible identification point；In order to anti- It only identifies the transmitting of routing information caused by point failure discontinuously to lack, cloud Trail termination is in addition to the cloud Trail termination in front of travelling Outside transmission path information, also to cloud transmission path information；In outlet charge station, cloud Trail termination is provided to lane toll system Vehicle running path information is used for charging；If cloud Trail termination does not respond to vehicle running path information, illustrate previous mark Know point or failure is transmitted in access station path, is then obtained by cloud path cloud.

6. the implementation method of the cloud path system based on Radio Frequency Identification Technology according to claim 1, which is characterized in that including Following step:

(2) for vehicle when passing through access station or identification point, radio frequency roadside unit is by Radio Frequency Identification Technology acquisition by vehicle Information, and collected information of vehicles, access station coding or identification point coding are sent to cloud Trail termination:

(A) for access station, collected information is sent to the cloud Trail termination of our station deployment by radio frequency roadside unit, by the cloud Trail termination stores and forwards vehicle route information forward；

(B) for identification point, collected information is sent to certain specified charge of the affiliated section of identification point by radio frequency roadside unit Stand deployment cloud Trail termination, then by the cloud Trail termination splice previous path, store and forward vehicle route information；

(3) cloud Trail termination is stored with freeway network information, in the vehicle route letter that RX path acquisition equipment is sent After breath, splicing and store path information travel the possible charge station in front to being deployed in then according to the possible driving direction of vehicle The current path information of cloud Trail termination distribution vehicle；

(4) the cloud Trail termination that the cloud Trail termination of traveling front charge station deployment receives connection path acquisition equipment is sent Vehicle route information after, store it is spare；

(5) for the cloud Trail termination of connection path acquisition equipment in forward-path information forward, being only forwarded to can without identification point The charge station in section where all charge stations reached and next identification point；

(6) if causing routing information that cannot successively transmit downwards due to identifying point failure, connection path acquisition equipment is caused Cloud Trail termination is after receiving the information of vehicles that identification point is sent, when cannot obtain the vehicle previous path information, at this moment from Cloud path cloud obtains, and repair process uses when cloud path cloud transmits abnormal as path, to reduce the information flow on network；

(7) since there are multiple circuits in network, for same vehicle, certain cloud Trail termination may will receive the road Shang Yigeyun Multiple routing informations that diameter terminal is sent retain one；

(8) for 5.8G identification point, routing information is successively transmitted between cloud Trail termination along driving direction；For electronic license plate Identification technology, due to not having directionality, routing information is between cloud Trail termination-" cloud path cloud "-cloud Trail termination three Transmitting；

(9) in outlet station, lane toll system obtains the routing information of vehicle from cloud Trail termination, according to actual travel path meter Calculate pass cost.

7. the implementation method of the cloud path system based on Radio Frequency Identification Technology according to claim 6, which is characterized in that described In step (3), the freeway network information is described by following four aspects elements:

In charge station's information, charge station includes entity charge station and dummy charge station, the road the dummy charge Zhan Zhigai The charge station that other section connecting points of Duan Yu are set up, is virtual presence, for interconnecting between charging in section and description section Intercommunication uses, and the dummy charge station is also used to describe the identification point of section laying；Charge station's information includes: charge station Place section coding, charge station's coding, charge station's type, the cloud Trail termination IP address for disposing the charge station；

Charge station's block information, description entity charge station are located at the charge which two reachable section intermediate nodes are included Between the phantom station in section belonging to standing, charge station's block information includes: section coding, coding of standing, closes on phantom station coding 1, phantom station coding 2 is closed on, wherein " closing on phantom station coding 1 ", " closing on phantom station coding 2 " describe the reachable road in both ends respectively The phantom station in the affiliated section of the charge station that section intermediate node is included；

The identification point block information describes identification point and is located at the affiliated section of identification point which two " section intermediate nodes " are included Phantom station between, identification point block information include: identification point number, affiliated section, access station number, outlet station number,；Its In " access station number ", " outlet station number " void in the affiliated section of identification point that both ends " section intermediate node " are included is described respectively Quasi- station；

The section intermediate node information describes the connectivity between section, and section intermediate node is by the corresponding dummy charge station in each section Group is combined into, and section intermediate node information includes: node serial number, section coding 1, coding 1 of standing, section coding 2, coding 2 of standing, " section Point number " identifies certain a road section intermediate node, represents an interchange or section tie point；A note in the intermediate node table of section Record represents the combination of a pair of of phantom station, indicates to reach and " compile in section by the node from " coding 1 of standing " of " section coding 1 " " coding 2 of standing " of code 2 "；Or " section coding 1 " can be reached by the node from " coding 2 of standing " of " section coding 2 " " coding 1 of standing ".

8. the implementation method of the cloud path system based on Radio Frequency Identification Technology according to claim 6, which is characterized in that in step Suddenly in (2)-(A), the acquisition of access station routing information and transmitting process flow are as follows:

(2A-1) entrance lane charging system enters the information of vehicles of highway by the identification of radio frequency roadside unit, and by vehicle Information, access station information are sent to the cloud Trail termination of station deployment；

(2A-3) access station cloud Trail termination inquires " charge station's information table ", all entity charges in section where obtaining the charge station It stands information, then routing information is passed to the cloud Trail termination of these entity charge stations deployment；The deployment of these entity charge stations Cloud Trail termination after receiving routing information, in addition " receiving time stamp " is saved in " routing information table "；

(2A-4) cloud Trail termination inquires " charge station's information table ", all dummy charge station letters in section where obtaining the charge station Then breath inquires " section intermediate node table ", obtain the virtual of other the corresponding sections being connected to these phantom stations by node It stands information；

(2A-5) inquires " charge station's information table " and determines phantom station for the phantom station in other sections obtained " step (2A-4) " Type be identification point phantom station or non-identifying phantom station；

(2A-6) looks into the phantom station in other sections obtained " step (2A-4) " if type is identification point phantom station It askes " charge station's information table ", all entity charge station information in section, then pass to routing information where obtaining the phantom station The cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving routing information Afterwards, in addition " receiving time stamp " saves afterwards；

(2A-7) for other sections obtained " step (2A-4) " phantom station, if type is non-identification point phantom station, It inquires " charge station's information table ", all entity charge station information in section, then transmit routing information where obtaining the phantom station The cloud Trail termination disposed to these entity charge stations；The cloud Trail termination of these entity charge stations deployment is receiving path letter After breath, in addition " receiving time stamp " saves afterwards；

(2A-8) for other sections obtained " step (2A-4) " phantom station, it is right if type is non-identification point phantom station In each of these phantom stations phantom station repeat (2A-4)-(2A-8) step be iterated, until all phantom stations not Until being non-identification point phantom station；

9. the implementation method of the cloud path system based on Radio Frequency Identification Technology according to claim 6, which is characterized in that described In step (2)-(B), the acquisition of identification point routing information and transmitting process flow are as follows:

(2B-1) identify dot system by radio frequency roadside unit identification pass through the identification point information of vehicles, and by information of vehicles, Identification point information is sent to the cloud Trail termination of some charge station of the affiliated section of identification point deployment；

(2B-3) cloud Trail termination inquires " the routing information table " of this equipment, the vehicle previous path information is obtained, with identification point The routing information that system is sent merges, and generates the newest routing information of vehicle；If this equipment query is less than corresponding vehicle elder generation Preceding routing information is obtained from cloud；

(2B-4) cloud Trail termination inquiry " identification point interval table " obtains section encoded information and correlation where the identification point Identification point block information；

(2B-5) cloud Trail termination is inquired " charge station's information table " according to road section information where identification point, obtains the identification point institute In all entity charge station information in section；Then, charged according to section entity where the identification point block information and identification point It stands information, which entity erect-position inquiry " Fee Schedule in section " determines in the front of identification point, i.e., from identification point section phantom station Field " combination of ETC identification point " includes that the identification point just illustrates the entity erect-position in Fee Schedule record in the section between entity station In front of identification point, otherwise it is located at identification point rear；Routing information is passed into those entity charge stations for being located at mark front The cloud Trail termination of deployment；The cloud Trail termination of these entity charge stations deployment is after receiving routing information, in addition " when reception Between stab " be saved in " routing information table "；

(2B-6) cloud Trail termination obtains identification point place according to road section information inquiry " charge station's information table " where identification point All dummy charge station information in section；Then, according to section dummy charge station where the identification point block information and identification point Information, inquiry " Fee Schedule in section " determine which phantom station is located at the front of identification point, i.e., from identification point section phantom station to Field " combination of ETC identification point " includes that the identification point just illustrates that the phantom station is located in Fee Schedule record in section between phantom station In front of identification point, otherwise it is located at identification point rear；For the phantom station in front of identification point, inquire " section intermediate node table ", Obtain the phantom station information in other the corresponding sections being connected to these phantom stations by node；

(2B-7) inquires " charge station's information table " and determines phantom station for the phantom station in other sections obtained " step (2B-6) " Type be identification point phantom station or non-identifying phantom station；

(2B-8) looks into the phantom station in other sections obtained " step (2B-6) " if type is identification point phantom station It askes " charge station's information table ", all entity charge station information in section, then pass to routing information where obtaining the phantom station The cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving routing information Afterwards, in addition " receiving time stamp " saves afterwards；

(2B-9) for other sections obtained " step (2B-6) " phantom station, if type is non-identification point phantom station, It inquires " charge station's information table ", all entity charge station information in section, then transmit routing information where obtaining the phantom station The cloud Trail termination disposed to these entity charge stations；The cloud Trail termination of these entity charge stations deployment is receiving path letter After breath, in addition " receiving time stamp " saves afterwards；

The phantom station in other sections that (2B-10) obtains previous step, if type is non-identification point phantom station, obtaining should All dummy charge station information in section where phantom station, then inquire " section intermediate node table ", and acquisition passes through with these phantom stations The phantom station information in other corresponding sections of node connection；

(2B-11) for the phantom station in other sections obtained " step (2B-10) ", inquiry " charge station's information table " determines virtual The type stood is identification point phantom station or non-identifying phantom station；

(2B-12) for other sections obtained " step (2B-10) " phantom station, if type is identification point phantom station, It inquires " charge station's information table ", all entity charge station information in section, then transmit routing information where obtaining the phantom station The cloud Trail termination disposed to these entity charge stations；The cloud Trail termination of these entity charge stations deployment is receiving path letter After breath, in addition " receiving time stamp " saves afterwards；

(2B-13) for other sections obtained " step (2B-10) " phantom station, if type is non-identification point phantom station, " charge station's information table " is then inquired, all entity charge station information in section, then pass routing information where obtaining the phantom station Pass the cloud Trail termination of these entity charge stations deployment；The cloud Trail termination of these entity charge stations deployment is receiving path After information, in addition " receiving time stamp " saves afterwards；

(2B-14) for other sections obtained " step (2B-10) " phantom station, if type is non-identification point phantom station, It repeats (2B-10)-(2B-14) step for each of these phantom stations phantom station to be iterated, until all phantom stations Until not being non-identification point phantom station；

10. the implementation method of the cloud path system based on Radio Frequency Identification Technology according to claim 6, which is characterized in that step Suddenly in (9), pass cost is calculated according to actual travel path specifically:

(9-1) exit lane charging system obtains the forward driving path of vehicle from cloud Trail termination, if in cloud Trail termination There is no the routing information of corresponding vehicle, is then obtained from cloud；

This charge station is determined the complete driving path of vehicle in conjunction with the run routing information of acquisition as outlet station by (9-2)；

(9-4) merges identical phantom station according to the corresponding charge station's block information of access station, excludes invalid endpoint, forms entrance For access station and outlet is " the access station section set " of access station section phantom station；

(9-5) inquires " section intermediate node table " according to the outlet virtual station in the set of access station section, obtains these phantom stations pair " the access station section node set " answered；

(9-7) merges identical phantom station according to the corresponding charge station's block information of outlet station, excludes invalid endpoint, forms entrance For outlet station section phantom station and outlet is " the outlet station section set " of outlet station；

(9-8) inquires " section intermediate node table " according to the ingress virtual station in the set of outlet station section, obtains these phantom stations pair " the outlet station section node set " answered；

(9-10) inquires " identification point interval table " acquisition by way of " the identification point section set " of the corresponding each identification point of identification point；

(9-11) gathers according to identification point section, inquires " section intermediate node table ", and it is corresponding to obtain block information both ends phantom station " identification point section node set "；

(9-12) is inquired " Fee Schedule in section " according to identification point block information, and it is corresponding to obtain block information both ends phantom station " identification point section rate set "；

(9-13) according to access station, mark 1, mark 2 ..., identification point N, outlet station, vehicle driving sequence, in accordance with previous section Outlet station connects the principle of temporal sequence of next section access station, and judging corresponding path node set, which is equal, which is unequal；Phase Deng illustrate section be it is continuous, it is unequal to illustrate that section is discontinuous；

(9-14) connects the principle of temporal sequence of next section access station according to previous section outlet station for discontinuous section, inquiry " path basis Fee Schedule " obtains corresponding shortest path, while inquiring " path segments calculating parameter table " and whether there is without mark The shortest path for knowing point, if there is the path without identification point, then shortest path and excellent without the identification point path small person of the amount of money First, if the amount of money is the same, shortest path is taken；

(9-15) according to access station, mark 1, mark 2 ..., identification point m, outlet station, vehicle driving sequence, in accordance with previous section Outlet station connects the principle of temporal sequence of next section access station, according to section node continuation property, successively stitching path information, so most The * Nm*No possible path that obtains Ni*N1* eventually ..., wherein Ni is access station interval number, and N1 is interval number ... the of identification point 1, Nm is the interval number for identifying m, and No is the interval number of outlet station；

(9-16) selects vehicle running path from this Ni*N1* ... * Nm*No possible path according to the principle of most short rate； Then " Fee Schedule in section " is inquired, obtains the rate in the section path Zhong Ge, added up to, finally obtain the pass cost, each of vehicle Section routing information, fee distribution information.