CN101533561B - Traffic information management server, navigation terminals and method thereof - Google Patents
Traffic information management server, navigation terminals and method thereof Download PDFInfo
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- CN101533561B CN101533561B CN 200810083595 CN200810083595A CN101533561B CN 101533561 B CN101533561 B CN 101533561B CN 200810083595 CN200810083595 CN 200810083595 CN 200810083595 A CN200810083595 A CN 200810083595A CN 101533561 B CN101533561 B CN 101533561B
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Abstract
The invention relates to a traffic information management server managing the provision of traffic information to a plurality of navigation terminals and a navigation terminal. In accordance with a request message of the traffic information at the navigation terminal, the traffic information management server extracts the traffic information including the location ID of a moving object at the path, the traffic information and reliability corresponding to the location ID from a traffic information database, then generates traffic news and sends the traffic news to the navigation terminal. The traffic information management server also updates the reliability corresponding to the location ID in the traffic information database according to the traffic feedback information at the navigation terminal. The invention relates to a traffic information management method and a navigation method. According to the invention, the navigation terminal can send feedback information to the traffic information management server to test the reliability of the traffic information. Based on the above traffic information management server and methods thereof, the electronic map quality of the navigation terminal can be improved and the cost of the navigation information services can be reduced.
Description
Technical field
The present invention relates to navigation field, particularly a kind of management to a plurality of navigation terminals provide transport information traffic information management server and a kind of search for mobile object from origin-to-destination via the path, guide the navigation terminal and the corresponding method of described mobile object.
Background technology
The navigation terminal that is loaded with electronic chart of today can be according to geography and the traffic rules information search path in the electronic geographic that exists on the media such as hard disk or DVD.By the input terminus, the user can be according to the result of calculation selection schemer of navigation terminal.In the navigation stroke, system tells the path that the user should travel, such as travelling to which intersection etc.The data that are used to route calculation come from the database in the electronic chart, generally upgrade several times in 1 year.
Yet in some developing city, road is also in frequent construction, and traffic rules also often change, and point of interest (terrestrial reference in some places such as sign buildings on the map) also often changes.The conventional approach of upgrading by artificial collection can't provide up-to-date information to the user on electronic chart.Based on the information of these " old ", the calculated route of navigation terminal is often made troubles to the user, and user's time even money has been wasted in the indication of mistake.
For fear of above-mentioned situation, the electronic chart provider more frequent method such as artificial field data acquisition of passing through of having to is gone updating map data, perhaps comprises that by setting up alliance government unit goes to guarantee the renewal frequency of data.Yet, so still need to expend a large amount of money and time, and this point can both be accomplished by not every map provider.Therefore a kind of demand is arranged, need to gather automatically, tissue differentiates and provides up-to-date that trustworthy and detailed data are given navigation terminal.
A patent of the U.S., " upgrade by feedback, strengthen or improve the method and system of geographical data bank " (6516267) have described a system and method, find by the detecting device feedback information of road, upgrade and the enhancing geographical data bank.Feedback information includes the matching degree of the credibility of information with expression feedback information and actual geographic entity.Yet the update frequency of information source has only been considered in the increase of the credibility of this feedback information or reduction, does not consider that but the navigation terminal user uses this result of information, does not comprise real user feedback process.So accuracy and credibility that this information acquisition update method that is actually single direction can not guarantee information.
Also have the open service of number of site, such as: http://www.poihandler.com in that more new data free or charge is provided to the user, is used for sharing of different navigation terminals.The pattern of this " contribute and ask for " is very general in the internet, yet the confidence level of these information but is difficult to give security to the user.If the user is using these more problem to occur in the new data, feedback procedure is spontaneous often and uncontrollable.Other users are difficult in time and accurately obtain the feedback of this class.
The Mapmaster of Toyota has delivered one piece of paper on the ITS world convention of Nagoya, be about keep the renewal of map datum by the probe vehicles data.It has described a kind of algorithm, by in conjunction with traffic signals and probe vehicles data, judges one-way road or forbidden line.Yet, point out that as it detection data accuracy of onboard system can influence the credibility of lastest imformation.They have to check the unmatched place of confirming map and data by the scene.This still takes time and effort.
Summary of the invention
Therefore, purpose of the present invention just provides a kind of traffic information management server, the platform of a message exchange is provided for a plurality of navigation terminals, can in time exchange various transport information, such as point of interest, and road information, traffic restriction etc.
In order not only to guarantee the ageing of transport information, the reliability of guarantee information also, the present invention also provides a kind of method to be used for gathering check, with provide transport information to navigation terminal, the user can also feed back evaluation to the transport information of upgrading by navigation terminal.
According to first aspect present invention, proposed a kind of management and provide the traffic information management server of transport information to a plurality of navigation terminals, comprising:
Interface unit is carried out communicating by letter between network and a plurality of navigation terminals by described interface unit;
Storage unit, the traffic information database that storage manages the transport information from a plurality of information sources;
Described traffic information database comprises the reliability of the transport information that offers described navigation terminal, described transport information and represents the position ID of the position of described transport information on map;
Control module, when the request message of receiving from the transport information of described navigation terminal, from described traffic information database, extract and comprise that mobile object is via the described position ID on the path, the transport information of corresponding described position ID, and described reliability and generate traffic message, control described interface unit described traffic message is sent to described navigation terminal.
According to second aspect present invention, proposed a kind of search for mobile object from origin-to-destination via the path, guide the navigation terminal of described mobile object, comprising:
The expression unit, based on described search via the path, the expression transport information;
Interface unit, by described interface unit navigation terminal is connected with traffic information management server, the described transport information request message via the transport information on the path of being asked is sent to traffic information management server, comprise described traffic message via the transport information on the path from described traffic information management server reception;
Storage unit, storage via on the path, by the traffic information management table that described traffic message constitutes, described traffic information management table comprises the reliability of transport information, described transport information and represents the position ID of the position of described transport information on map,
Control module, based on described traffic information management table, control described expression unit represent with described search via the corresponding described reliability of described position ID on the path.
According to third aspect present invention, proposed a kind of management and provide the traffic information management method of transport information to a plurality of navigation terminals, comprising:
Reception is from the transport information request message of navigation terminal;
From traffic information database, extract and comprise mobile object via the described position ID on the path, the transport information of corresponding described position ID, thereby and the reliability corresponding with described transport information generate traffic message;
The traffic message of described generation is sent to described navigation terminal.
According to fourth aspect present invention, proposed a kind of search for mobile object from origin-to-destination via the path, guide the air navigation aid of described mobile object, comprising:
The transport information request message via the transport information on the path of being asked is sent to traffic information management server;
Comprise described traffic message from described traffic information management server reception via the transport information on the path;
With reference to representing transport information corresponding and the reliability corresponding, wherein saidly comprise the reliability of transport information, described transport information and represent the position ID of described transport information position on map, corresponding with described transport information via the traffic information management table on the path with described transport information with the position ID via on the path of described search via traffic information management table on the path, that constitute by described traffic message.
Information acquisition comprises taxi from road vehicle, bus, and private cars etc., or the detecting device on the road comprise inductive coil, camera, microwave detector, ultrasonic detector etc., perhaps the government information system comprises the road construction situation, traffic rules variation etc.
Because transport information is by road vehicle, detecting device produces at random, and for the accuracy of guarantee information, traffic information management server is responsible for organizing and checking the data of these magnanimity.
The algorithm of check is: the source of fox message at first.If from official or authority's channel, such as government notice, or height trusted client, the confidence level of information is just high.If data come from a new channel, necessary checkout procedure comprises data layout, proves image, and user feedback.If data have been passed through this checkout procedure, the reliability of information still can be made as height.The rank process of reliability is strict and can changes by user's navigation terminal feedback evaluation.
The transport information of upgrading is by after checking, and data are stored in and prepare user's download in the traffic information management server.At the lane database of traffic information management server, data are stored in the different classification, comprise different areas, different data types, and such as traffic rules, point of interest etc.
The download of transport information is by distributed service.Because consider the huge of quantity of information, the be more convenient for high efficiency user's of satisfying download demand of distributed service.
In user's navigation terminal, comprise the navigation terminal of vehicle-mounted embedded type, portable navigation terminal, personal digital assistant, smart mobile phone, data updated is by broadcasting, cell phone network, or other network download are shown to the user by a kind of suitable form in terminal system.For lastest imformation being provided for different terminal as much as possible, data layout can be XML (XML (extensible Markup Language)) or other language, is convenient to terminal parses.
Advantage of the present invention is as follows:
Traffic information link is crossed multiple different channel collection, and the ageing and freshness of guarantee information in time fullys understand traffic and geography information on the road.
Transport information is verified and differentiates at traffic information management server, and the correctness of guarantee information and accuracy allow the user can relieved use.
The issue of transport information is efficient and rapid.The user can not only obtain updated information from traffic information management server, can also directly download from other users that downloaded this part or all of lastest imformation.Share transport information to greatest extent and help the user to understand up-to-date traffic correlation circumstance, ready for going on a journey.
Description of drawings
To the detailed description of embodiment, it is clearer that above-mentioned purpose of the present invention and advantage will become by with reference to the accompanying drawings, wherein:
Fig. 1 a is the schematic configuration diagram of traffic information management server;
Fig. 1 b is the schematic configuration diagram of control module in the traffic information management server;
Fig. 1 c is the schematic configuration diagram of the traffic information database that storage unit is stored in the traffic information management server;
Fig. 1 d is the process flow diagram that upgrades traffic database in the traffic information management server;
Fig. 1 e is a process flow diagram of interworking between traffic information management server and the navigation terminal;
Fig. 2 is an example structure figure with the navigation terminal of traffic information management server interworking;
Fig. 3 carries out exchange work another example flow diagram with exchange and renewal transport information between traffic information management server and the navigation terminal.
Fig. 4 is the process flow diagram that check comes from the road information of probe vehicles or detecting device;
Fig. 5 is an example with vehicle mounted guidance terminal of information exchange functions;
Fig. 6 is the embodiment of the traffic message form of download;
Fig. 7 is that the traffic feedback information of vehicle is uploaded the conditional parameter explanation.
Fig. 8 is an example of the traffic feedback information uploaded of navigation terminal.
For the ease of understanding, used identical reference symbol to represent same components total among these figure.
Embodiment
Fig. 1 a is the structural drawing of traffic information management server.Traffic information management server 104 is from department information system of government 101, a plurality of information sources of road information acquisition system 102 and website and other infosystem 103 and so on are obtained up-to-date geography and/or transport information, and are the confidence level grading of giving a mark according to the reliability of information.This traffic information management server 104 comprises: storage unit 105, control module 106 and interface unit 107.Wherein, storage unit 105 is used to store the traffic information database that the transport information from a plurality of information sources is managed, traffic information database comprises a plurality of traffic information management tables, the traffic information management table offers the transport information of this terminal, corresponding to reliability and this transport information of the expression position ID position on map, corresponding with described transport information of this transport information.Wherein, transport information can comprise information such as traffic rules, point of interest, traffic events, road construction.
Interface unit 107 is used to provide interface function, carries out communicating by letter between network and a plurality of navigation terminals by this interface unit.Control module 106 is used for when the request message of receiving from the transport information of described navigation terminal, from described traffic information database, extract comprise mobile object via the described position ID on the path, with the corresponding transport information of described position ID, and the reliability corresponding and generate traffic message, and described traffic message is sent to described navigation terminal by described interface unit 107 with this transport information.The traffic message that navigation terminal 108 receiving traffic information management servers 104 send, simultaneously navigation terminal 108 is also as the channel of information feedback, the transport information that traffic information management server 104 provides is fed back evaluation, provide the traffic feedback information to traffic information management server 104.If described interface unit 107 receives the traffic feedback information from a plurality of described navigation terminals, then control module 106 upgrades described reliability corresponding with described position ID in the traffic information management table according to the traffic feedback information that receives.
To simply describe how obtaining the reliability corresponding below with transport information.If data obtain from the disclosed infosystem 101 of government department, the reliability of information is just the highest, such as being 5 stars.If information comes from road information acquisition system 102, comprise taxi, bus, coil, it is first-class to make a video recording, and information via is chosen as 4 stars after handling, and expression has higher confidence level, but needs more feedback informations to confirm.If the quantity of positive feedback information surpasses certain number percent (such as 50%), the reliability of this lastest imformation is upgraded to 5 stars.If data come from website and other infosystems 103, reliability can be 3 stars, and expression information has certain confidence level, but needs the closs validation of other channels, such as the information that comes from probe vehicles or coil.Above-mentioned only is that the mode that how to obtain reliability exemplarily has been described, in addition, can also obtain reliability by other method of statistics and so on.Have only when lastest imformation be fed confirmed after, its reliability just can be enhanced.Therefore, the reliability of upgrading transport information is not unalterable, can constantly change according to user's feedback.
When needs upgraded the traffic information management table, the transport information that needs to upgrade in 105 pairs of traffic information management tables of storage unit was upgraded, such as road conditions, and traffic conditions, point of interest etc.Different information is placed in the different table classes.
Fig. 1 b is the schematic configuration diagram of control module 106 in the traffic information management server.Because the channel difference of the transport information of gathering needs different processing units to handle different transport information.Control module 106 in the traffic information management server comprises image processing system 205, is used for processing image information 201; Text processing system 206 is used to handle text message 202; Road information disposal system 207 is used to handle road information 203, and updating block 208 is used for traffic information database is upgraded; Traffic message generation unit 209 and feedback information processing unit 210.If more new data is an image information 201, just discern processing according to the pattern information that comprises in the image automatically by image recognition processing system 205.If more new data is a text message 202, just carry out analyzing and processing according to the keyword that comprises in the literal by text analysis system 206.If the form of data is GPS or other road informations 203, just handle according to the critical data that comprises in the information by road information disposal system 207.Afterwards with the data storage handled in storage unit 105.For image information 201, if clear and comprised geographical location information, such as the crossing name, figure on the traffic mark board and literal store the identified traffic rules info class that is used as.For text message 202, filter by keyword search, will be used as the traffic rules classification together such as " restriction is turned left " and geographical location information and store.For road information 203, come from the gps data of vehicle, or come from other data of detecting device, can analyze the situation of traffic flow, comprise traffic direction, top speed and route etc.If by analyzing, a new road or new traffic direction are found, then can utilize the traffic information database in 208 pairs of storage unit of updating block to upgrade to it by Data Format Transform.Afterwards, if there is feedback information, then increases after its reliabilities it is stored in the database as new geography information through information check feedback information processing unit 210.Traffic message generation unit 209, when the request that receives navigation terminal, from state the traffic information management table, extract and comprise mobile object via the described position ID on the path, the transport information of corresponding described position ID, and described reliability and generate traffic message.Feedback information processing unit 210 upgrades described reliability corresponding with described position ID in the traffic information management table according to the traffic feedback information that receives.
Obviously, control module 106 can only comprise traffic message generation unit 209 or only comprise traffic message generation unit 209 and feedback information processing unit 210.
Fig. 1 c is the schematic configuration diagram of the traffic information database stored of the storage unit in the traffic information management server.In the traffic information database of storage unit 105, the position id number that every transport information goes up according to the map (such as road road chain numbering, crossing numbering, point of interest numbering etc.) is arranged.Every transport information all is divided into a plurality of classifications (such as traffic rules, point of interest, traffic events, condition of road surface etc.) and exists in the different table classes.General data is transport information content (limiting left-hand rotation etc. such as certain road cross), and the transport information of with good grounds these transport information contents and category division receives class of subscriber (such as everyone, private car, commercial car, officer's car, pedestrian, bicycle etc.), and the reliability of this information (such as 5 stars, 4 stars etc.).When management server is received the transport information request message of navigation terminal transmission, control module (106) by management server by with the communicating by letter of storage unit (105), data are carried out the retrieval of various conditions according to the above-mentioned field in the above-mentioned traffic information database, extract the corresponding transport information in the traffic information database, generate traffic message and send to navigation terminal.The example of the traffic message of downloading has explanation in Fig. 8.
Fig. 1 d is the process flow diagram that upgrades traffic information database in the traffic information management server.At first control module 106 carries out Data Format Transform 208 according to the channel of different information sources to transport information, is unified into the Interchange Format of a regulation, is stored in the traffic information database of storage unit 105.Every transport information in the traffic information data table all is according to position ID, and the information content and reliability sort, and the content of every ID has uniqueness according to the classification difference of information.The reliability of every information is not unalterable, becomes according to the quantity and the feedback of information source.
When many information sources on same position ID, occurring (such as government department, with the road information acquisition system of traffic restricted information to(for) certain bar road is arranged all), if the information content is identical, system keeps the information content constant, and the reliability that this information is set simultaneously is the highest rank of reliability in these information sources; If information is opposite, system is the reliability of relatively newer old information earlier, if the reliability of fresh information is higher, then change the information content, otherwise temporarily keep the prime information content constant, continue to detect fresh information simultaneously, when the information content opposite with the prime information content is increased to a certain degree (surpassing 50% such as the ratio that accounts for total information quantity) about this position ID, then change the content of this information, and its reliability is revised.The principle of revising reliability is to select on the basis of the information source of high reliability, changes according to the user's of this information of use feedback.If positive feedback reaches certain quantity,, then increase the reliability one-level such as surpassing 50% of total feedback quantity; If negative feedback reaches certain ratio,, then reduce the reliability one-level such as surpassing 50% of total feedback quantity.The rest may be inferred.
Fig. 2 shows the structural drawing with the navigation terminal of traffic information management server interworking.This navigation terminal comprises expression unit 21, interface unit 22, storage unit 23 and control module 24.Represent that wherein unit 21 is used for representing transport information based on described search via the path.Interface unit 22, be used to provide interface function, by described interface unit navigation terminal is connected with traffic information management server, the described transport information request message via the transport information on the path of being asked is sent to traffic information management server, and comprise described traffic message via the transport information on the path from described traffic information management server reception.Storage unit 23, be used to store via on the path, by the traffic information management table that described traffic message constitutes, described traffic information management table comprises the reliability of transport information, described transport information and represents the position ID position of described transport information on map, corresponding with described transport information.And control module 24, be used for based on described traffic information management table, control described expression unit represent with described search via the corresponding described reliability of described position ID on the path.
Below in conjunction with Fig. 1 a, 1b, Fig. 2 describe how traffic information management server carries out traffic information management alternately with navigation terminal process flow diagram.
With reference to figure 1e, at first, in step 11, the request that traffic information management server 104 receives transport information from one or more navigation terminals 108 by interface unit 107.In step 12, the control module 106 of traffic information management server 104 is according to the request of navigation terminal, from traffic information database, extract and comprise that mobile object is via the described position ID on the path, the transport information of corresponding described position ID, and the reliability corresponding and generate traffic message, and by interface unit 107 this traffic message is sent to navigation terminal 108 in step 13 with described transport information.Navigation terminal 108 is after receiving this traffic message by its interface unit 22, can be with this traffic message as being stored in the storage unit 23 via traffic information management table on the path, that constitute by described traffic message, so as the expression unit represent with described search via the corresponding described reliability of described position ID on the path.In step 14, if navigation terminal 108 has sent feedback information, then traffic information management server 104 receives this feedback information, and is upgraded by the described reliability corresponding with described position ID in 106 pairs of described traffic information databases of control module in step 15, otherwise finishes.
Fig. 3 carries out exchange work another example flow diagram with exchange and renewal transport information between traffic information management server and the navigation terminal.
This flow process is that the user begins in the starting point of stroke.Primary route calculation is finished in this locality of navigation terminal.After the path list from origin-to-destination produced, this tabulation was sent to traffic information management server 104 by cordless communication network (GPRS, CDMA, WiMAX etc.).Traffic information management server 104 is searched in the traffic information database of storage unit 105 according to this tabulation, if find to have the transport information of renewal, traffic information management server is at first checked the classification of this information.If interest point information, can not influence the result of calculation in path.If traffic rules information, conditional this path will be sent out back navigation terminal, and navigation terminal need recomputate route, sends to traffic information management server inspection once more.Use the information exchange functions of navigation terminal and traffic information management server by the user, can find the most rational travel route.After the navigation beginning, the user can select whether to start the feedback function of navigation terminal 108, also can set in advance the feedback states (activating or dormancy) of acquiescence, if startup feedback function, the gps data record is with automatic opening entry and coupling route, after the user reaches the destination this navigation of end, navigation terminal 108 generates a matching result tabulation automatically, and sending to the control module 106 of traffic information management server by interface unit 22, it can further check the reliability of this lastest imformation by this time stroke of user.If there is not the situation that it fails to match, traffic information management server 104 will increase the reliability of this lastest imformation, if the road that it fails to match is arranged, system will ask the user by literal or speech interfaces input it fails to match reason, perhaps report to the center by the vehicle-mounted picture system of automatic identification.If it is wrong proving this lastest imformation, traffic information management server will reduce the reliability of this information.If the reason that it fails to match is self-inflicted by the user, such as not travelling according to navigation way, or change the destination temporarily, navigation terminal will be beamed back not bright reason by interface unit 22 and give traffic information management server 104, and communication breath management server 104 is abandoned this feedback result.
Fig. 4 is the process flow diagram that check comes from the road information of probe vehicles or detecting device.If the information of gathering comes from the vehicle on the road, such as probe vehicles, according to its gps data, traffic information management server can generate information such as top speed, traffic direction and travel route.The ratio that surpasses some speed limits (according to present map attribute data) by the statistical study computing velocity in some periods, surpass 40% such as probability, traffic information management server can infer that change may take place the maximum speed limit that this road.By analysis and judgement traffic direction and travel route, traffic information management server can know which turn direction forbids, any bar road be close or the one-way road.The data of analyzing probe vehicles are not only based on the vehicle heading in some moment, the position, speed, or the map match route of a certain car, but according to mean velocity range, other information such as travel direction and type of vehicle are in per 5 minutes, traffic behavior rule in one day 24 hours is because most traffic rules are free restriction and type of vehicle restriction.These methods can be avoided mistake that onboard system self calculates and unilateral as far as possible.
If the information of gathering comes from the detecting device of installing on the road, such as inductive coil, camera, ultrasonic detector, microwave detector etc., traffic information management server can be analyzed the traffic flow that each detects on the section by the method for statistical study, finds the traffic flow character of road, generates the traffic situation of change.The inductive coil that top speed and traffic direction can be installed on the track is differentiated.Turn to situation to differentiate by the track that the ground directional bea con is arranged.Such as, if having sensed a car, the leftmost track from west to east at a crossing passes through, and in a signal lamp cycle, the track of the close the inside of north-to-south direction has also been sensed car and has been sailed into, illustrates that vehicle carries out being travelled by the left-hand bend of west south in the green time at this crossing.Simultaneously, the differentiation of travel route also can be carried out track up to car plate by camera and analyzes.
Fig. 5 has shown an example with vehicle mounted guidance terminal of information exchange functions.The camera 404 that a table top in this navigation terminal and the car is taken to headstock the place ahead is used to upload with the radio antenna 405 of data download and links to each other with one.In navigation map display screen (401), there are two examples to show.In example 1, car 1 is driving towards crossing 1, prepares to turn left to reach the destination A.Yet this moment, navigation terminal was received the lastest imformation that has just obtained, and showed this crossing no left turn.Warning message is presented on the bottom-right download message display screen 403, has the reliability of 3 stars.Reliability represents that this information is the more new data that just obtains from some channel, but does not also confirm through other channels.If can be confirmed, the reliability of this information also can continue to rise to higher level.This navigation terminal recomputates route automatically then, and the prompting driver turns right, and 2 turn around to get back to crossing 1 at the crossing, and the A that reaches the destination keeps straight on.The starting point that this example explanation lastest imformation promptly can begin stroke the user is by downloads that link to each other with the database of central server, points out the user on the navigation terminal but also can be in approaching renewal place be downloaded to automatically by network and central server.Take which kind of mode to upgrade and depend on concrete system and user situation.
In example 2, car 2 is driving towards crossing 2, prepares the B that reaches the destination that keeps straight on.Yet the existing road ahead inlet of vehicle-mounted pick-up hair has the traffic mark board prompting, and No entry.The road at B place, destination is the one-way road.Therefore after the driver judged voluntarily according to this situation, 2 turned left and the B that reaches the destination that detours at the crossing.At this moment, just the lastest imformation of finding uploads to central server automatically by navigation terminal and wireless network, reports the road conditions at up-to-date B place, destination.Contain the image information that camera collection arrives in the report data, and 2 the positional information at the crossing of car 2.This lastest imformation shows in uploading image display panel 402.
Fig. 6 is an embodiment of the traffic message of download.Traffic message comprises header, coding, and length, position ID, data type, user type, reliability, the information content, and other.Header is used for data packet communication and uses synchronously.Coding is used for package number, such as the order of the packet that breaks.Length is the length of datagram.Position ID has indicated the position on the pairing map of this traffic message, such as road road chain numbering, crossing numbering etc.Data type is the kind of this information, comprises traffic rules, point of interest, road construction, traffic events etc.User type is the classification of message recipient, comprises everyone, private car, commercial car, officer's car, pedestrian, bicycle.Reliability is the confidence level classification of this lastest imformation.Such as the highest confidence level of 5 stars representative, and the like.The user can judge the credibility of this information according to the reliability of information.The information content is the main contents of this traffic message.The specifying information that comprises this renewal.Navigation terminal can directly read these data and be used for calculated route.Other parts are the communication field that system reserves.
Fig. 7 is that the traffic feedback information of vehicle is uploaded the conditional parameter explanation.This uploads condition is to feed back the parameter list that exchange message is used at the vehicle that vehicle mounted guidance terminal is housed.Comprising type of vehicle (private car, taxi, bus, officer's car, lorry), because information such as traffic rules and type of vehicle often have relation; Upload state (having activated or dormancy) with the communications status of the traffic information management server at center; GPS recording status (the record function on of the GPS module of registration of vehicle travel route or stop); Route searching and map matching result tabulation (1 is that the match is successful, and 0 is that it fails to match, contains position ID), (cause type comprises road closed to reason that it fails to match, road limits is travelled, and turns to restriction, the track restriction, the track is closed, traffic events and other), and the feedback of renewal (correct, failure, not bright, perhaps do not check).Feedback uploads to the center by user or navigation terminal input.The mode of feedback comprises image and text, and image mode is the feedback data that the automatic identification of navigation terminal of camera head is housed, and text is the feedback data of user by the interface input.Feedback information is uploaded and is stored into by interface unit and control module in the storage unit of traffic information management server at center, is used to check the reliability of lastest imformation.
Fig. 8 is an embodiment of the traffic feedback information uploaded of navigation terminal.The traffic message form of the download that the similar Fig. 6 of the form of the traffic feedback information that navigation terminal is uploaded describes, it is corresponding that content and the traffic feedback information among Fig. 7 are uploaded conditional parameter, comprising header, coding, length, position ID, data type, user type, inconsistent reason, feedback information, and other.Header is used for data packet communication and uses synchronously.Coding is used for package number, such as the order of the packet that breaks.Length is the length of datagram.Position ID has indicated the position on the pairing map of this traffic feedback information, such as road road chain numbering, crossing numbering etc.Data type is the kind of this information, comprises traffic rules, point of interest, road construction, traffic events etc.User type is the classification of message uploader, comprises private car, taxi, bus, officer's car, lorry.Inconsistent reason is the cause description that it fails to match, and comprising does not have that it fails to match (promptly all not correctly), road closed, and road limits is travelled etc.Feedback information is the main contents of this traffic feedback message, comprises correctly mistake, not bright and not inspection.Other parts are the system communication reserved field.
Although described the present invention, those of skill in the art recognize that under the situation that does not break away from the spirit and scope of the present invention, can change in form and details with reference to preferred embodiment.
Claims (16)
1. a management provides the traffic information management server of transport information to a plurality of navigation terminals, comprising:
Interface unit is carried out communicating by letter between network and a plurality of navigation terminals by described interface unit;
Storage unit, the traffic information database that storage manages the transport information from a plurality of information sources;
Described traffic information database comprises the reliability of the transport information that offers described navigation terminal, described transport information and represents the position ID of the position of described transport information on map;
Control module, when the request message of receiving from the transport information of described navigation terminal, from described traffic information database, extract and comprise that mobile object is via the described position ID on the path, the transport information of corresponding described position ID, and described reliability and generate traffic message, control described interface unit described traffic message is sent to described navigation terminal
Wherein said interface unit receives the traffic feedback information from a plurality of described navigation terminals, and described control module upgrades described reliability corresponding with described position ID in the traffic information database according to the traffic feedback information that receives.
2. traffic information management server as claimed in claim 1, wherein:
The reliability of described transport information is based on the information source of described transport information and sets.
3. traffic information management server as claimed in claim 1, wherein: described traffic feedback information comprises:
Described position ID;
Positive false information, described transport information of the described information representation of correcting errors and real road situation comparing result;
Reason when inconsistent reason, described inconsistent reason are represented described positive false information for mistake.
4. traffic information management server as claimed in claim 3, wherein:
Described traffic feedback information also comprises the mobile object classification information of the mobile object of the described navigation terminal of expression lift-launch.
One kind search for mobile object from origin-to-destination via the path, guide the navigation terminal of described mobile object, comprising:
The expression unit, based on described search via the path, the expression transport information;
Interface unit, by described interface unit navigation terminal is connected with traffic information management server, the described transport information request message via the transport information on the path of being asked is sent to traffic information management server, comprise described traffic message via the transport information on the path from described traffic information management server reception;
Storage unit, storage via on the path, by the traffic information management table that described traffic message constitutes, described traffic information management table comprises the reliability of transport information, described transport information and represents the position ID of the position of described transport information on map,
Control module, based on described traffic information management table, control described expression unit represent with described search via the corresponding described reliability of described position ID on the path,
Wherein, described storage unit is preserved the real road situation based on the described position ID of described mobile object; And
Described control module compares described transport information and real road situation based on described position ID, generate the traffic feedback information and be sent to traffic information management server, so that traffic information management server upgrades according to the traffic feedback information pair described reliability corresponding with described position ID that receives.
6. navigation terminal as claimed in claim 5, wherein:
The reliability of described transport information is based on the information source of described transport information and sets.
7. navigation terminal as claimed in claim 5, wherein, described traffic feedback information comprises:
Described position ID,
Positive false information, the described comparative result of the described information representation of correcting errors,
Reason when inconsistent reason, described inconsistent reason are represented described positive false information for mistake.
8. navigation terminal as claimed in claim 5, wherein:
Described traffic feedback information comprises that also expression carries the mobile object classification information of the described mobile object of described navigation terminal.
9. a management provides the traffic information management method of transport information to a plurality of navigation terminals, comprising:
Reception is from the transport information request message of navigation terminal;
From traffic information database, extract and comprise mobile object via the described position ID on the path, the transport information of corresponding described position ID, thereby and the reliability corresponding with described transport information generate traffic message;
The traffic message of described generation is sent to described navigation terminal;
Reception is from the traffic feedback information of a plurality of navigation terminals, and according to the feedback information that receives the described reliability corresponding with described position ID in the traffic information database upgraded.
10. traffic information management method as claimed in claim 9, wherein:
The reliability of described transport information is based on the information source of described transport information and sets.
11. traffic information management method as claimed in claim 9, wherein: described traffic feedback information comprises:
Described position ID;
Positive false information, described transport information of the described information representation of correcting errors and real road situation comparing result;
Reason when inconsistent reason, described inconsistent reason are represented described positive false information for mistake.
12. traffic information management method as claimed in claim 11, wherein:
Described traffic feedback information also comprises the mobile object classification information of the mobile object of the described navigation terminal of expression lift-launch.
13. one kind search for mobile object from origin-to-destination via the path, guide the air navigation aid of described mobile object, comprising:
The transport information request message via the transport information on the path of being asked is sent to traffic information management server;
Comprise described traffic message from described traffic information management server reception via the transport information on the path;
With reference to representing transport information corresponding and the reliability corresponding, wherein saidly comprise the reliability of transport information, described transport information and represent the position ID of described transport information position on map, corresponding with described transport information via the traffic information management table on the path with described transport information with the position ID via on the path of described search via traffic information management table on the path, that constitute by described traffic message;
Based on described position ID described transport information and real road situation are compared, generate the traffic feedback information and described traffic feedback information is offered traffic information management server, so that traffic information management server upgrades according to the traffic feedback information pair described reliability corresponding with described position ID that receives.
14. method as claimed in claim 13, wherein:
The reliability of described transport information is based on the information source of described transport information and sets.
15. method as claimed in claim 13, wherein, described traffic feedback information comprises:
Described position ID,
Positive false information, the described comparative result of the described information representation of correcting errors,
Reason when inconsistent reason, described inconsistent reason are represented described positive false information for mistake.
16. method as claimed in claim 13, wherein:
Described traffic feedback information comprises that also expression carries the mobile object classification information of the described mobile object of described navigation terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810083595 CN101533561B (en) | 2008-03-12 | 2008-03-12 | Traffic information management server, navigation terminals and method thereof |
| JP2009057763A JP5096396B2 (en) | 2008-03-12 | 2009-03-11 | Traffic information management server, navigation terminal and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810083595 CN101533561B (en) | 2008-03-12 | 2008-03-12 | Traffic information management server, navigation terminals and method thereof |
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| CN101533561A CN101533561A (en) | 2009-09-16 |
| CN101533561B true CN101533561B (en) | 2011-11-30 |
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| CN 200810083595 Expired - Fee Related CN101533561B (en) | 2008-03-12 | 2008-03-12 | Traffic information management server, navigation terminals and method thereof |
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| JP (1) | JP5096396B2 (en) |
| CN (1) | CN101533561B (en) |
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| JP2009217826A (en) | 2009-09-24 |
| CN101533561A (en) | 2009-09-16 |
| JP5096396B2 (en) | 2012-12-12 |
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