WO2014092504A1 - 경로 계산 방법, 경로 획득 방법 또는 이를 위한 장치 - Google Patents
경로 계산 방법, 경로 획득 방법 또는 이를 위한 장치 Download PDFInfo
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- WO2014092504A1 WO2014092504A1 PCT/KR2013/011592 KR2013011592W WO2014092504A1 WO 2014092504 A1 WO2014092504 A1 WO 2014092504A1 KR 2013011592 W KR2013011592 W KR 2013011592W WO 2014092504 A1 WO2014092504 A1 WO 2014092504A1
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- Prior art keywords
- terminal
- route
- party
- location
- server
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000004364 calculation method Methods 0.000 claims description 60
- 230000004044 response Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 description 15
- 238000010295 mobile communication Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
- G01C21/3415—Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
- G01C21/3438—Rendez-vous, i.e. searching a destination where several users can meet, and the routes to this destination for these users; Ride sharing, i.e. searching a route such that at least two users can share a vehicle for at least part of the route
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3492—Special cost functions, i.e. other than distance or default speed limit of road segments employing speed data or traffic data, e.g. real-time or historical
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
- G06Q10/047—Optimisation of routes or paths, e.g. travelling salesman problem
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- G06Q50/40—
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096805—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route
- G08G1/096811—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route where the route is computed offboard
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096833—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route
- G08G1/096844—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route where the complete route is dynamically recomputed based on new data
Definitions
- the present invention relates to a method for calculating a route, a method for obtaining a route, or an apparatus therefor, and more particularly, to a method for calculating a route using information provided from a server or a terminal therefor, and It relates to a method for determining whether to provide information or a server therefor.
- the 0MA (0pen Mobile Alliance) standardization organization delivers TPEG Traffic Protocol Expert Group (TPEG Traffic Protocol Expert Group) information in a DMBCDigital Multimedia Broadcasting (NSB) network in which information is provided in an existing broadcasting format. Rather, they are standardizing the Dynamic Navigation Enabler (DynNav), which delivers real-time traffic information to peer-to-peer (P2P) over IP (Internet Protocol) -based networks in mobile or wireless networks.
- DynNav Dynamic Navigation Enabler
- P2P peer-to-peer
- IP Internet Protocol
- the first is a form of performing a complicated route calculation in a navigation application mounted on a smartphone, in a server providing traffic information and route information, and delivering the route to the smartphone.
- the second is to improve the performance of the smart phone when the route calculation is performed by the application itself mounted on the smartphone or when the navigation terminal equipped with a mobile communication modem calculates the route.
- the terminal does not transmit When the mountain route is registered in the server, only the real-time traffic information related to the route may be personally provided from the server in IP-based P2P, not in the form of existing broadcasting.
- FIG. 1 shows a classification of a navigation device.
- the navigation device additionally transmits TPEG-based traffic information transmitted through a broadcasting network such as DMB (110), additionally transmits traffic information based on IP such as mobile communication network or Wi-Fi (120), and other communications. It can be classified into a standalone form 130 that generates and provides route information by tracking a vehicle's location through a GPS connection without a medium connection.
- DynNav which is currently standardized in OMA LOC WG, belongs to the form of delivering IP-based traffic information (120) in the above classification, and more specifically, belongs to the category of delivering in P2P form.
- the device is divided into two types as follows.
- Smart NEKSmart ND, 122) A device that can calculate routes by itself and requests only real-time traffic information without receiving route information through the DynNav server.
- Trip Structure As the first terminal, the first terminal acquires information such as origin and destination from the user and transfers the information to the server.
- the trip structure consists of subsets corresponding to multiple path structures.
- the route structure is represented by several segments in such a way that the entire route calculated through the trip structure is represented.
- Segment Structure It is a structure that expresses each segment and can define not only the length of each segment but also the real-time traffic situation corresponding to the segment based on the expression of (TPEG).
- FIG. 2 is a flowchart illustrating the operation of the smart NlXSmart ND) in the conventional DynNav system. Since the performance of the terminal itself supports route calculation, the smart ND calculates its own route based on the trip information defined by the user and sends it to the server. Typical functions are as follows.
- Smart ND delivers the calculated route to the server, and the server delivers the real-time traffic status of the route.
- the server may respond with a representation of the created "trip" resource. In this use case behaviors are equivalent [23] 2.
- the application uploads the calculated route to resource / ⁇ tripld ⁇ / routes.
- the server may reply with a representation of a "route" resource, including links to performance parameters and traffic events.
- the server may answer with traffic information (performance parameters and traffic events). In this case an additional get operation is needed to retrieve the contents of the resource.
- the application subscribes to a notification service for trips and routes.
- the server delivers a notification resource to the application using links to the changed resources, including trips and routes including updated performance parameters and traffic information.
- the application decides to calculate a new route using the received resource.
- the application uploads the newly calculated path to resource / ⁇ tripId ⁇ / routes.
- the server responds with a representation of a "path" resource, including links to path performances and events. This step can be repeated several times until a path that satisfies the performance constraint is found.
- the application requests to change the subscript ion setting to add a notification for the newly subscribed route.
- FIG. 3 illustrates the operation of the smart ND described in FIG. 2 when the destination is the third terminal (ie, the destination terminal 34).
- the positioning assistance information (A /) is used for fast GPS access and additional support information between the navigation terminal (ie, source terminal 31) and the location server 33 in advance.
- D; Assistance Data is shared between the source terminal and the location server, S301:
- the source terminal 31 performs a service for setting the location of the target terminal 34 as a destination.
- an identifier (identifier; ID) for identifying the target terminal is used.
- the identifier is used globally unique value of the terminal such as IPv4, IPv6, MSISDN, IMSI.
- the source terminal specifies that the traffic information server 32 will perform a service for setting the location of the target terminal as a destination by passing the identifier value of the specified target terminal.
- the source terminal transmits its location information to the traffic information server for service in the process.
- the traffic information server requests an inquiry to the target terminal for agreement on utilization of location information and service progress of the target terminal and accepts the request. If the target terminal does not accept the request in the process, the service is not performed.
- S37 The navigation service is started when the target terminal accepts the service execution in S303.
- the traffic information server requests the location information of the target terminal through the location server 33 at the same time as the navigation service starts.
- the location server acquires location information of the target terminal at the request of the traffic information server.
- the location server transmits the location of the target terminal obtained in S306 to the communication information server.
- the traffic information server transmits the location information of the target terminal obtained in S307 to the source terminal.
- partial traffic information may be provided.
- the meaning of the partial traffic information is basically based on the location of the source terminal delivered by the source terminal in S302 and the location of the destination terminal delivered by the location server in S307. (Within a certain radius) delivers detailed traffic information and a traffic event from the origin to the destination.
- S309 The source terminal calculates an optimal route based on the location of the target terminal and the partial traffic information received in S308.
- S310 The source terminal registers the route obtained in S309 with the traffic information server.
- S311 The traffic information server transmits a current traffic condition to the source terminal in the registered route information.
- the reason is basically that the source terminal calculates an expected arrival time for the corresponding route.
- the route recalculation is not performed because S308 passes information such as traffic accidents or constructions in the route.
- the location server tracks the location of the target terminal based on a specified period (temporal period) to transfer the corresponding location information to the traffic information server, or continuously tracks and moves the location of the target terminal.
- the location information may be transmitted to the traffic information server only when one distance is satisfied.
- the method may differ depending on the type of service or the type of implementation.
- the traffic information server transmits the location of the received target terminal to the source terminal.
- S314 The source terminal re-calculates (or re-searchs) the route based on the location of the received target terminal. After re-calculating the route, the process returns to S309 and repeats S309 to S314.
- ND has some problems.
- the location server takes the location of the destination terminal and delivers the information to the source device at a time interval, for example, assuming that the location server obtains the location of the destination terminal every 5 minutes, Assume that the location of the source / destination terminal has not changed significantly.
- the re-calculated path is basically different from the existing path. It changes a lot You may not. In this case, the path is unnecessarily re-calculated, and therefore, overhead occurs in data processing and transmission and reception.
- the source terminal does not basically have traffic situation information, and determines the route re-calculation using only its own location and the location of the destination terminal. This determination process may not reflect the actual traffic situation in more detail. There is a problem. That is, when the current location of the target terminal is not in the existing route, since there is no traffic situation information from the existing route to the current location of the target terminal, the re-calculated route does not properly reflect the actual traffic situation. Very likely.
- the present invention aims to propose a method for solving the problems, namely, inefficiencies and shortcomings of the path re-calculation, which occur in the form of the conventionally proposed service mentioned above.
- a method for determining whether re-calculation of a route of a trip identified as a starting point and a destination is required using traffic informat ion according to an embodiment of the present invention.
- the method may further include transmitting updated communication information about the obtained third party's current location and a currently ongoing route to the terminal. It may include.
- the terminal may be configured to re-calculate the route based on the obtained current location of the third party and updated traffic information about the route currently in progress.
- the method includes: requesting location information for the third party from a location server; And receiving location information on the third party from the location server in response to the request.
- the method may include waiting until the terminal moves by the specific distance from the current position of the terminal.
- a method for determining whether re-calculation of a route of a trip identified as a starting point and a destination using traffic informat ion is necessary. Transmitting the current location of the terminal to the server if the terminal is performed by the terminal and the terminal moves by a predetermined distance from a previously reported location; If the destination is a location of the third party defined by a third party identifier (ID), if it is determined that re-calculation of the route is necessary according to a specific condition based on the current location of the third party, then from the server Receiving updated traffic information about the current location of the third party and the current on-going route, wherein the specific condition is (1) the third party travels more than a predetermined distance from a previously reported location.
- ID third party identifier
- the third party has not moved more than a predefined distance from the previously reported position and the distance between the current position of the terminal and the current position of the third party is less than a threshold value. If one of the specific conditions is met, it may be determined that re-calculation of the path is necessary. Preferably, the method may include re-calculating the route based on the current location of the received third party and updated traffic information regarding the route currently in progress.
- the method may include waiting to move by the specific distance from the current position of the terminal.
- a server configured to determine whether re-calculation of a route of a trip identified as a starting point and a destination is required using traffic informat ion according to an embodiment of the present invention.
- a transceiver configured to be; And a processor configured to provide traffic information on a route received from the terminal, wherein the processor receives a current position of the terminal from the terminal when the terminal moves a specific distance from above reported above. And if the destination is the location of the third party defined by a third party identifier (ID), obtain the current location of the third party, and according to a specific condition based on the obtained current location of the third party.
- ID third party identifier
- the particular condition is (1) if the third party travels more than a predetermined distance from a previously reported position, or (2) the third party Did not move more than a predefined distance from the previously reported position, the current position of the terminal and the current position of the third party If the distance is less than the threshold value, and when one of the specific conditions are satisfied again in the route can be determined that the required calculations.
- the processor may be configured to transmit to the terminal updated traffic information regarding the current location of the acquired third party and a route currently in progress. Can be.
- the terminal may be configured to re-calculate the route based on the obtained current location of the third party and updated traffic information about the route currently in progress.
- the processor when the current location of the terminal is received from the terminal, the processor requests location information for the third party from a location server, and requests the location information from the location server in response to the request. It may be configured to receive the location information for the third party. Preferably, if it is determined that re-calculation of the route is not necessary, the processor may be configured to wait until the terminal moves by the specific distance from the current position of the terminal.
- a terminal configured to determine whether re-calculation of a route of a trip identified as a starting point and a destination using traffic informat ion according to an embodiment of the present invention is communicated with a server.
- a transceiver configured to be;
- a processor configured to calculate a route based on traffic information on a route received from the server and / or a location of a destination, wherein the processor moves when the terminal moves by a specific distance from a previously reported position.
- ID third party identifier
- the processor may be configured to recalculate the route based on updated traffic information about the current location of the received third party and a route currently in progress.
- the processor may be configured to wait until the specific distance from the current position of the terminal.
- 1 shows a classification of a navigation device.
- FIG. 2 is a flowchart illustrating the operation of the smart MXSmart ND) in the conventional DynNav system.
- FIG. 3 is a flowchart illustrating the operation of the smart NlXSmart ND when the destination of the route is a mobile terminal (that is, a destination terminal) in addition to FIG. 2.
- 5 shows the hierarchical structure of TPEG.
- FIG. 7 shows an example of an embodiment related to FIG. 6.
- Figure 8 is shown a block diagram of a device that may be implemented embodiments of the present invention ".
- Application herein refers to the implementation of a well-defined but not standardized set of functions that perform tasks on behalf of a user.
- the application may consist of software and / or hardware elements and associated user interfaces.An may lement at ion of a well—defined but not standardized set of functions that performs work on behalf of the user. of software and / or hardware elements and associated user interfaces.
- a server corresponds to an entity that provides resources to clients in response to requests (An entity that provides resources to Clients in response to requests.).
- a client corresponds to a device, user agent, or other entity operating as a receiver of a service (A device, user agent, or other entity that acts as the receiver of a). service.)
- DynNav corresponds to entity 1 which is responsible for interacting with the DynNav server to obtain optimal route (s), real-time and future traffic information and auxiliary data (An entity that is in charge of interacting with a DynNav Server to get optimal route (s), real time and forecasted traffic informat ion and complimentary data.). Therefore, the DynNav application is mounted on a terminal including a smartphone, a mobile phone, a navigation device, and the like, and accordingly, the DynNav application may be referred to interchangeably with the terminal. In this respect, the DynNav application is a kind of client.
- the source terminal refers to a terminal requesting a destination terminal location-based path setting service
- the target terminal refers to an entity that is a destination in the service.
- the DynNav server corresponds to an entity that is responsible for providing optimal route (s) ⁇ real-time and future traffic information and auxiliary data to the application (An entity that is in charge). of providing to the application optimal route (s), real-time and forecasted traffic informat ion and complimentary data.).
- the DynNav server corresponds to a type of the server.
- the DynNav server is referred to as "traffic information server” or simply "server”.
- a location URI corresponds to a URI that allows a device's current location to be obtained from a specific location server by using a protocol for obtaining a location (A URI that enables the current location of a device to be obtained from a particular location server using a particular dereferencing protocol.).
- a navigation device corresponds to an entity that assists a driver to show a correct path to reach a final destination using a Global Navigation Satellite System (GNSS) service.
- GNSS Global Navigation Satellite System
- This entity can process real-time and predicted traffic information according to user preferences and dynamically estimate the optimal route (An entity that, using GNSS service, assists the driver showing correct route to reach the final dest inat ion.
- This entity may process real-t ime and predicted traffic informat ion and dynamical ly estimates the optimal route, according to user preferences.)
- the lightweight ND means a navigation device which does not have a function for calculating a route and requests and receives a calculated route from a server, and if the local map database is not available, And to the navigation device that accesses the server to retrieve the road shape representation.
- a navigat ion device that accesses to a server for route estimation functionalities and for retreiving roads shape representation, if not available in a local map database).
- a smart ND corresponds to a navigation device that can calculate a route (s) using a road network database available on the device itself (A navigat ion device that is able to calculate the route (A). s), using a roads network database available on the device itself.).
- points of interest describe information about locations such as name, category, unique identifier, or city address (POI describes information about locations such as name, category, unique identifier, or civic address.).
- segments are defined as segments by dividing the roads according to the policy of each highway.
- traffic congestion or passing time may be determined.
- segments are used interchangeably with road segments.
- [108] refers to a collection of one or more consecutive segments. If necessary, a segment sequence consisting of one segment is also possible. Also, for example, a segment sequence consisting of two or more segments has the end point of the first segment equal to the start point of the second segment.
- a polyline corresponds to a continuous line used in graphic computing composed of one defined by specifying end points of each segment. or more line segments, defined by specifying the endpoints of each segment).
- route information corresponds to information about coordinates of segment end points and complimentary data from the defined origin and the dest inat ion from a defined source to a destination. ).
- the traffic information corresponds to information consisting of traffic events and network performance parameters related to an area or a route.
- the traffic information may include current or future traffic information, that is, future traffic information.
- a traffic event refers to events that are imposed or planned by a road network operator related to an area or route (that is, road constructions causing road closure) or events that occur outside the control of the network operator ( Informat ion regarding events related to an area or a route that are either imposed or planned by the road network operator (ie road works leading to lane closures) or events that occur outside the control of the network operator (ie accidents)).
- the network performance parameter corresponds to information on performance or traffic flow (ie, speed, delay, and time required) of each segment existing in an area or a path (Informat ion regarding the performances (ie speed). , delay and travel time) of road segments related to an area or a route.).
- a type of route information including all segments from a source to a destination. Unless otherwise stated, the path information means the entire path.
- the present invention relates to a navigation system, a method and a device for reflecting real-time traffic information. More particularly, the present invention relates to a communication system capable of calculating a route by itself and connecting to a mobile communication network in a system for providing real-time traffic information. Navigation system, method and apparatus for transmitting a calculated route and / or calculated route based on real-time traffic information to a server using a minimum communication bandwidth when having a modem. In recent years, with the active spread of smartphones, navigation services that provide a route to mobile communication devices have become commonplace, away from the conventional DMB broadcasting network. It is called.
- the navigation device refers to a device capable of performing a route guidance function
- the navigation device is portable, such as a smartphone, a mobile phone, a mobile device, a ramlob, a tablet PC, a smart pad, or the like.
- a smartphone a mobile phone, a mobile device, a ramlob, a tablet PC, a smart pad, or the like.
- FIG. 4 is a network configuration diagram illustrating an overall IP-based DynNav system, which is a navigation system of the present invention.
- the navigation system of the present invention is a navigation device (D) capable of accessing a mobile communication network, a mobile communication network for wireless transmission and reception, and a traffic information collecting device and traffic information to provide traffic information.
- a location server configured to generate and transmit path data providing server (DynNav Server) and assistance data (Assistance Data) for obtaining location of the navigation device.
- the traffic information providing server or the DynNav server is expressed as “server”, and the navigation device is “terminal”, “ND” or “Smart ND according to the capability of each terminal. "Or” Lightweight ND 1 ".
- the terminal (which can be divided into two terminal types as mentioned above) can be connected to an IP network such as a mobile communication network or Wi-Fi as shown in the drawing, and for route guidance.
- a navigation application is provided, and the application can access a server to receive route guidance data and real-time traffic information to guide the route.
- the terminal capable of calculating the route itself may selectively receive only real-time traffic information without receiving route guidance data from the server.
- the real-time traffic information means additional information related to traffic such as optimal route information, real-time and predicted traffic information, point of interest (POI) and weather calculated by the DynNav server and delivered to the terminal.
- terminal In addition, to eliminate duplication of expression, the navigation application or terminal is collectively referred to as a terminal. Therefore, in the present specification, “terminal”, “ND”, “Smart ND”, “Lightweight ND”, and “navigation application” may all be referred to as a terminal.
- TPEG Transport Protocol Experts Group
- TPEG refers to a standard protocol for transmitting traffic and travel information through a digital broadcasting network.
- the hierarchical structure of the TPEG extends from the network layer (third layer) to the application layer (seventh layer) of the IS0 / 0SI Layer model.
- Network negotiation defines TPEG frame synchronization and routing.In the packetization layer of the 4th, 5th and 6th layers, the components of each application are merged into one stream, and each message specification corresponds to the 7th layer, which is the application layer. do.
- DynNav the real-time traffic information may be provided to the terminal according to the real-time traffic information expression method of the TPEG, and a separate expression method may be used.
- FIG. 6 shows a flowchart of an operation according to an embodiment of the present invention.
- the terminal applied in FIG. 6 corresponds to the smart ND.
- the smart ND may receive traffic information from a server before calculating the route by itself.
- the terminal obtains trip structure information such as a departure point and a destination from the first navigation user, and transmits the travel structure to the server to receive traffic information on a related route before calculating a route based on the navigation structure.
- trip structure information such as a departure point and a destination from the first navigation user
- the positioning assistance information (A / D) can be used by using the location transfer protocol for fast GPS access and additional support information between the navigation terminal (ie, source terminal 31) and the location server 33.
- (Assistance Data) is shared between the source terminal and the location server.
- the source terminal 31 performs the service for setting the location of the target terminal 34 as a destination (that is, the 3 rd party tracking). It may be set as a destination of the route (S601).
- the purpose step in the process When specifying a word use an identifier (ID) to identify the target terminal.
- ID is a globally unique value of the terminal such as IPv4, IPv6, MS ISDN, IMSI.
- the source terminal may specify that the traffic information server 32 will perform a service for setting the location of the target terminal as a destination by transmitting the specified identifier value of the target terminal (S602).
- the source terminal may transmit its location information to the traffic information server for service in the process.
- the traffic information server may request an inquiry to the target terminal for consent to use location information of the target terminal and proceed with service, and receive a response for accepting the request (S603). If the target terminal does not accept the request in the process, the service is not performed.
- step S603 when the target terminal accepts the request, the navigation service is started (S604).
- the traffic information server may request the location information of the target terminal through the location server 33 at the same time as the navigation service starts (S605).
- the location server may acquire location information of the target terminal at the request of the traffic information server (S606).
- the location server may transmit the location of the target terminal acquired in S606 to the traffic information server (S607).
- the traffic information server may transmit the location information of the target terminal obtained in S607 to the source terminal (S608). At the same time, the traffic information server may transmit the partial traffic information to the source terminal.
- the meaning of the partial traffic information is basically the location of the source terminal transmitted by the source terminal in S602 and the location server transmitted in S607. Based on the location of the target terminal, a detailed traffic information (Performance Parameter) and a traffic event information from a departure point to a destination are transmitted near a departure point (for example, within a predetermined radius from the departure point).
- the source terminal may calculate an optimal route based on the location of the target terminal and the partial traffic information received in S608 (S609).
- the source terminal may register the route obtained in S609 with the traffic information server (S610).
- the reason for registering in the traffic information server is based on a route in which the source terminal is registered. In order to receive a traffic condition change of the corresponding route based on the current traffic situation and the registered route.
- the traffic information server may transmit the current traffic condition of the registered route to the source terminal (S611).
- the reason is basically that the source terminal calculates the expected arrival time for the corresponding route. Basically, since the information such as traffic accident or construction in the route is transmitted from S608, the route re-calculation according to S611 is not performed. Do not.
- S612 After the source terminal performs the navigation service, it may be determined whether the source terminal has moved a predetermined distance (S612). Since the source terminal can identify that the moving object (for example, a vehicle) on which the source terminal is mounted moves, proceed to the next step when moving a certain distance, otherwise the step until the predetermined distance is moved Repeat. That is, one embodiment of the present invention is configured such that subsequent steps (ie, S613 to S618) including this step are performed whenever the source terminal travels the predetermined distance. In other words, S612 may be a procedure for triggering a procedure to be described below of an embodiment of the present invention.
- the source terminal that has moved a certain distance may provide its location to the traffic information server (S613).
- the reason why the source terminal reports its location is as follows.
- the source terminal Since the source terminal has moved a certain distance, it is to check the position of the target terminal accordingly to determine whether the additional route calculation process is necessary. In addition, while the source terminal moves a certain distance, the target terminal can also move a certain distance. In other words, one embodiment of the present invention is a departure . Since the location of the destination and the destination may be dynamically changed, it is necessary to periodically report or acquire the location of the source terminal or the location of the target terminal.
- the following operation according to the movement of the position of the target terminal may be considered.
- navigator The subject receiving the service is the source terminal, and the target terminal may not move according to time, and when the source terminal does not move, at least the previously reported position of the source terminal has not been changed. Since the path to the target terminal is valid as it is, it may be desirable to trigger the following operation of an embodiment of the present invention based on the movement of the source terminal.
- the traffic information server may request current location information of the target terminal through the location server (S614). This is to obtain information to be used to determine whether route re-calculation (re-search) is necessary, i.e. the current position of the target terminal. As will be described later, it may be determined whether recalculation of the route is necessary according to the current position of the target terminal. This is a procedure that may occur when the source terminal is moved by a predetermined distance in S612. Since the position movement of the source terminal has already been confirmed in S612, the current position of the target terminal (as the location of the destination) required for path calculation is determined. It can be understood to acquire.
- re-search route re-calculation
- the location server may acquire current location information of the target terminal at the request of the traffic information server (S615).
- the location server may transmit the location of the target terminal obtained in S615 to the traffic information server (S616).
- the traffic information server may determine whether route re-calculation is necessary based on the current location of the source terminal obtained in S613 and the current location of the destination terminal obtained in S616 (S617).
- the source terminal has capability to search / calculate a route but cannot know a traffic condition of the route.
- the traffic information server grasps information on the traffic situation, when 1) the location of the target terminal and 2) the location of the target terminal is delivered based on the advanced navigation service, It may have a feature that it is possible to provide traffic information necessary for fast additional route information acquisition of the source terminal. More specifically, in S617 it is classified whether the path re-calculation is necessary based on the following conditions.
- the re-calculation of the route is necessary under certain conditions as follows: (1) the third party (ie the destination terminal) has moved more than a distance from the previously reported position, or (2 When the target terminal does not move more than a specific distance from a previously reported position, but the distance between the source terminal and the target terminal is closer than the threshold distance (The re-routing is required under the specific conditions: (1) the 3rd party moves over a certain distance from previously reported posit ion of the 3rd party or (2) the 3rd party does not move a certain distance but the distance between DynNav application and the 3rd party is closer than a threshold value.)
- the traffic information server determines in step S617 that the route re-calculation of the source terminal is necessary, the traffic information server transmits the current location information of the target terminal to the source terminal and the currently ongoing route (ie, Information on the updated traffic situation for the previous route) may be transmitted (S618). When all the procedures are performed, the process returns to step S619 again until the source terminal reaches the location of the target terminal.
- the currently ongoing route ie, Information on the updated traffic situation for the previous route
- the information on the traffic condition includes all necessary detailed traffic information (Performance Parameter) or non detailed traffic information (Traffic Event) from the source terminal to the target terminal.
- the conditions to include are not specified separately, but may be set by the traffic information server as necessary. If the traffic information server determines that the route re-calculation of the source terminal is not necessary in S617, the embodiment returns to S612 and waits until the source terminal moves a certain distance.
- FIG. 7 is a flowchart illustrating a more detailed operation according to an embodiment of the present invention shown in FIG. 6.
- the application 710 corresponds to the DynNav application as mentioned above, and may be referred to as a “terminal.” Thus, the description of FIG. 7 refers to the application as a “terminal”.
- server 720 corresponds to the DynNav server as mentioned above.
- the terminal 710 may generate a trip description through the travel parameters defined by the user of the terminal, that is, a departure destination or additional information, using a POST command. .
- the server 720 may generate a trip based on the travel description and transmit an identifier (ID) and parameters defined therefor to the terminal.
- ID identifier
- the terminal may generate an area description by using a POST command to request traffic information related to the trip identified as a starting point and a destination of the trip.
- the server can answer two types of traffic information to optimize bandwidth and operation.
- the (network) performance parameter refers to information on performance or traffic flow (ie, speed, delay, and time required) of a segment representing an area or a path, and the "2.
- POST create area description Are said to be performance parameters in an area or path within a certain radius from the origin, and these performance parameters are to be provided by the server if there is more than a certain level of movement in the area or path within the radius. Can be.
- the terminal may read traffic information provided by the server using a GET command. This traffic information can be used by the terminal to estimate or calculate the route for the defined trip while trying to avoid significant road segments (affected by accidents, construction or road congestions).
- the terminal may upload the estimated path (selected among the paths calculated by the terminal) to the server using a POST command.
- the server may respond with a representation of a "path" resource, including performance parameters and links to traffic events.
- the terminal may subscribe to the notification service for the area selected in step 2 and the trip defined in step 3 using the POST command.
- the terminal may be informed from the server of new information about performance parameters and traffic events related to the selected area and all routes uploaded for the trip.
- the terminal may periodically update its current location using a PUT command to modify the starting parameter of the travel resource. This operation is triggered when the vehicle to which the terminal is attached has moved a certain distance from the previously reported position;
- the server may utilize this information to delete a road segment that has already traveled from the route (s) information.
- the server may acquire the current location of the third party and determine whether re-calculation of a route is required by the terminal. .
- the re-calculation of the route may be one of the conditions described above, ie a third party has moved more than a distance from the previously reported position; When a third party has not moved more than a certain distance from a previously reported position but the distance between the terminal and the third party is closer than a threshold distance; Alternatively, if one of the cases where a large change in the traffic condition of the route between the terminal and the third party occurs, it is determined that it is necessary.
- the server is additional traffic information (for example, so that the terminal can estimate the alternative route based on the changed third party location). Traffic information between the modified third party's location and the previously reported location of the third party).
- the terminal may access updated traffic information (traffic events and performance parameters) related to the route notified above using a GET command.
- the terminal may decide to re-calculate a new path under the following conditions:
- the terminal receives the updated traffic information and / or the updated destination in step 8
- the terminal recalls a newly calculated path using a PUT command or a POST command for a newly registered path for an existing path.
- the server may reply with a representation of a "path" resource that includes performance parameters.
- This step may be repeated several times until the performance of the re-computed path, i.e. the time required, is better than the previous paths.
- the terminal may acquire a new region description to obtain traffic information in an area where a repeated request has occurred in a similar operation to that described in steps 2 and 3 above. Can be defined.
- the UE may select to use a partial path method of uploading only segments changed with respect to a previously defined reference path. [190] 10. DELETE: response the previous route resource
- the terminal may delete previous paths that are no longer used from the proposed set of paths by using the DELETE command.
- the terminal may delete the newly calculated route from the proposed set of routes if the performance of the new route is worse than the route being used.
- the terminal may unsubscribe the previous paths from the notification service using DELETE.
- the terminal 810 may include a transceiver 811 configured to communicate with the server 820; and a processor 812 configured to calculate the route through the traffic information received from the server.
- the server 820 includes a transceiver 821 configured to communicate with the terminal; And a processor 822 configured to calculate a route or collect and process traffic information based on a travel related parameter such as starting and destination information received from the terminal.
- the terminal 810 is a smart ND.
- the processor 812 may transmit the current location of the terminal to the server if the terminal moves by a certain distance from the previously reported location.
- the destination is a third party location defined by a third party identifier (ID)
- ID a third party identifier
- Processor 812 may be configured to receive updated traffic information about the third party's current location and current on-going route from the server. Whether re-calculation of the route is necessary is determined by the server managing / providing traffic information.
- the specific condition may include (1) when the third party has moved more than a predetermined distance from a previously reported position, or (2) a predefined distance from the previously reported position by the third party. If the distance between the current position of the terminal and the current position of the third party is less than a threshold value, and if one of the specific conditions is satisfied, it may be determined that re-calculation of the path is necessary.
- the processor 812 may be configured to re-calculate the route based on updated traffic information regarding the current location of the received third party and a route currently in progress.
- the processor 812 may be configured to wait until it moves by the specific distance from the current location of the terminal.
- the processor 822 of the server is configured to receive the current position of the terminal from the terminal if the terminal moves by a certain distance from a previously reported position.
- the processor 822 further obtains a current location of the third party if the destination is a third party location defined by a third party identifier (ID), and obtains the current location of the third party. It may be configured to determine whether re-calculation of the route is necessary according to the specific conditions based on it.
- ID third party identifier
- the processor 822 is configured to transmit updated communication information about the acquired third party's current location and a currently ongoing route to the terminal. Can be.
- the processor 822 When the current location of the terminal is received from the terminal, the processor 822 requests a location server for location information about the third party and responds to the request from the location server for the third party. It can be configured to receive location information.
- the processor 822 may be configured to wait until the terminal moves by the specific distance from the current position of the terminal.
- the terminal or the server may perform a combination of one or two or more of the embodiments described above, may be performed by combining or combining some of the embodiment (s).
- Embodiments of the present invention are applicable to a navigation device or a server.
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Abstract
Description
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2015547859A JP6105747B2 (ja) | 2012-12-13 | 2013-12-13 | 経路計算方法、経路獲得方法またはこのための装置 |
KR1020157013964A KR20150096653A (ko) | 2012-12-13 | 2013-12-13 | 경로 계산 방법, 경로 획득 방법 또는 이를 위한 장치 |
US14/649,156 US9574887B2 (en) | 2012-12-13 | 2013-12-13 | Method of calculating route, and method or device for obtaining route |
EP13863261.7A EP2933606A4 (en) | 2012-12-13 | 2013-12-13 | ROUTE CALCULATION METHOD, AND METHOD OR DEVICE FOR ROUTE ROUTING |
CN201380065178.8A CN104919281B (zh) | 2012-12-13 | 2013-12-13 | 计算路线的方法及用于获得路线的方法或者设备 |
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US201261737074P | 2012-12-13 | 2012-12-13 | |
US61/737,074 | 2012-12-13 | ||
US201361902798P | 2013-11-12 | 2013-11-12 | |
US61/902,798 | 2013-11-12 | ||
US201361905262P | 2013-11-17 | 2013-11-17 | |
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US (1) | US9574887B2 (ko) |
EP (1) | EP2933606A4 (ko) |
JP (1) | JP6105747B2 (ko) |
KR (1) | KR20150096653A (ko) |
CN (1) | CN104919281B (ko) |
WO (1) | WO2014092504A1 (ko) |
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Also Published As
Publication number | Publication date |
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CN104919281B (zh) | 2018-06-15 |
JP6105747B2 (ja) | 2017-03-29 |
US9574887B2 (en) | 2017-02-21 |
US20160216125A1 (en) | 2016-07-28 |
EP2933606A4 (en) | 2016-11-23 |
EP2933606A1 (en) | 2015-10-21 |
JP2016502096A (ja) | 2016-01-21 |
KR20150096653A (ko) | 2015-08-25 |
CN104919281A (zh) | 2015-09-16 |
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