WO2012163090A1 - 一种交通路径获取的系统和方法 - Google Patents

一种交通路径获取的系统和方法 Download PDF

Info

Publication number
WO2012163090A1
WO2012163090A1 PCT/CN2012/070046 CN2012070046W WO2012163090A1 WO 2012163090 A1 WO2012163090 A1 WO 2012163090A1 CN 2012070046 W CN2012070046 W CN 2012070046W WO 2012163090 A1 WO2012163090 A1 WO 2012163090A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
path
server
time
terminal device
Prior art date
Application number
PCT/CN2012/070046
Other languages
English (en)
French (fr)
Inventor
李会
单良
李伟华
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012163090A1 publication Critical patent/WO2012163090A1/zh

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/265Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network constructional aspects of navigation devices, e.g. housings, mountings, displays

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a system and method for interacting between a terminal device and a server to obtain corresponding traffic path information.
  • location services have always been considered as a bright spot for future mobile value-added services.
  • mobile positioning services have been launched by major mobile communication operators in North America, Europe, Asia Pacific, Japan and South Korea. Positioning is the most attractive business in mobile value-added services, and it is also one of the most complex services in all aspects of the industry chain.
  • LOC is the Open Mobile Architecture (OMA), which will work on the LIF Forum in 2002, as well as the positioning service in the WAP (Wireless Access Protocol) Forum, and 3GPP (3rd Partner Project) R6 LCS. (Location Services, Location Services) The third phase of the work was merged and established. The purpose is to develop the positioning service standards for interconnection and to establish specifications for mobile location services to ensure end-to-end interoperability. At present, 0MA L0C gradually replaces 3GPP and 3GPP2 in research fields such as roaming and Le interface, becoming the main international norm maker of the location service standard.
  • OMA Open Mobile Architecture
  • OMA LOC The main work of OMA LOC is to develop user plane-based positioning technology in mobile communication networks, to realize the transmission of relevant positioning parameters in the control plane positioning technology in the past mobile communication network in the IP channel, thereby realizing the positioning and reducing the pair.
  • the core network's reliance reduces coupling and increases flexibility.
  • OMA LOC is gradually studying how to provide location services for non-mobile communication networks, such as positioning of fixed access methods, positioning of the Internet, positioning of WLANs, and so on.
  • the positioning system is mainly composed of three functional entities, which are respectively SUPL positioning service agents (SUPL Agent). ), SUPL Server (SLP) and SUPL-enabled terminals (SET).
  • SUPL Agent can provide an application with a function of accessing the positioning service, and is the first service access point provided to the outside by the positioning service system.
  • the application requests to locate one or more SET terminals through a SUPL proxy.
  • the terminal can acquire location information from the home server.
  • current SUPL technology does not support path selection from one location to another, and the path selection does not take into account factors such as traffic congestion.
  • the technical problem to be solved by the present invention is to provide a system and method for obtaining traffic routes, and providing users with more valuable traffic paths.
  • the present invention provides a method for obtaining a traffic path, including: the terminal device sends a path request message to the server, where the path request message includes location information and time information, and the server according to the location information and The time information acquires corresponding path information, and returns the path information to the terminal device.
  • the location information includes start location information and end location information, or a link name, or a link number.
  • the starting point location information or the ending location information is a current location of the terminal device; the server acquiring corresponding path information according to the location information and the time information, including: according to the location information and the time information Get the corresponding path information.
  • the path information includes one or more pieces of path information, or one or more pieces of sub-path information.
  • the path information further includes time length information.
  • the path request message further includes the acquiring mode information, where the acquiring mode information includes any one of the following methods: single acquisition; periodic acquisition; event trigger acquisition; periodic acquisition and event trigger acquisition.
  • the path request message further includes one of the following information: a real-time mode, a prediction mode, and an average mode.
  • the present invention also provides a path acquisition system, including: a server and a terminal device, where: The terminal device is configured to: send a path request message to the server, where the path request message includes location information and time information;
  • the server is configured to: obtain corresponding path information according to the location information and the time information, and return the path information to the terminal device.
  • the location information includes start location information and end location information, or a link name, or a link number.
  • the starting point location information or the ending location information is a current location of the terminal device
  • the path information includes one or more pieces of path information, or one or more pieces of sub-path information.
  • the path information further includes time length information.
  • the path request message further includes the acquiring mode information, where the acquiring mode information includes any one of the following methods: single acquisition; periodic acquisition; event trigger acquisition; periodic acquisition and event trigger acquisition.
  • the path request message further includes one of the following information: a real-time mode, a prediction mode, and an average mode.
  • the present invention also provides a server for obtaining a traffic path, the server is configured to: obtain corresponding path information according to the location information and the time information, and return the path information to the terminal device;
  • the path request message includes location information and time information, and the path request message is sent by the terminal device to the server.
  • the location information includes start location information and end location information, or a link name, or a link number.
  • the starting position information or the ending position information is a current location of the terminal device; Front location information.
  • the path information includes one or more pieces of path information, or one or more pieces of sub-path information.
  • the path request message further includes the acquiring mode information, where the acquiring mode information includes any one of the following methods: single acquisition; periodic acquisition; event trigger acquisition; periodic acquisition and event trigger acquisition.
  • the path request message further includes one of the following information: a real-time mode, a prediction mode, and an average mode.
  • the terminal user can request and obtain a selectable path from the starting location to the terminal location by using the held terminal, and the so-called selectable path refers to multiple paths selectable by the terminal device. .
  • These paths not only take into account physical distance factors, but also provide opportunities for path selection with reference to traffic congestion factors, road quality (road grades, roadblocks) and other factors.
  • the present invention also considers a path selection service in a single, multiple, periodic, etc. manner. Undoubtedly, the present invention provides a more powerful path determination and selection system. BRIEF abstract
  • FIG. 1 is a structural diagram of a system according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a single acquisition path information according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of acquiring periodic path information according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of event path information acquisition according to an embodiment of the present invention.
  • the solution of the present invention includes: the terminal device sends a path request message to the server, where the path request message includes location information and time information, and the server acquires corresponding path information according to the location information and the time information, and the path is The information is returned to the terminal device.
  • the above time information refers to the time information using the requested path, and the obtained path information is The path information of the request path within the range of time information.
  • the terminal device can be provided with the best road traffic information according to the real-time road conditions at the time or the historical road conditions at that time, using real-time or predictive methods.
  • the above location information includes the start location information and the end location information of the requested path, or the link name, or the link number. If the request is a link name or a link number, it is equivalent to the start position and end position information.
  • the starting position information may be current location information of the terminal device or location information of other locations.
  • the end position information may be current location information of the terminal device or location information of other locations.
  • the terminal device sets the starting position or the ending position as the current location of the terminal device, and the server acquires the current location information of the terminal device by interacting with the terminal device, for example, by using a secure user plane positioning method or performing position calculation by using a satellite navigation method.
  • the time information of the requested path may be time period information (including start time and end time) or time point information (start time or end time).
  • the start time can be the current time or some time in the future.
  • the path request message further includes the acquiring mode information, including: a single acquisition, or multiple acquisitions, and the multiple acquisitions include: periodic acquisition, event trigger acquisition, or periodic acquisition and event trigger acquisition.
  • the periodic acquisition means that the server calculates the path information at a certain time and then returns the information to the terminal device.
  • the event-triggered acquisition refers to when the server learns that an event occurs on the path calculated by the terminal (for example, a traffic incident, a roadblock, The dangerous road section prompts, etc., sends the path information to the terminal device to the terminal device.
  • the server needs to interact with the terminal to perform current location calculation before calculating the path each time. .
  • the path information calculated by the server includes path information of one or more paths, or one or more pieces of sub-path information.
  • the path request message further includes one of the following information: a real-time mode, a prediction mode, and an average mode.
  • the path information calculated by the server may further include time length information (corresponding to the path information) Time length information and/or time length information corresponding to the sub path information).
  • the time length information includes estimated time length information, average time length information, or real time length information.
  • the path information further includes real-time length information; if the path request message includes prediction mode information, the path information further includes estimated time length information; The path request message includes average mode information, and the path information further includes average time length information.
  • the real-time mode information, the prediction mode information, or the average mode information can be used in combination with the above-described acquisition mode information.
  • the following describes the estimated time length information, average time length information, and real-time length information:
  • a estimated time length information refers to: estimating the time length information corresponding to the road condition at a certain time or a certain time point in the future;
  • the A average time length information refers to: an average time length information calculated based on the time length statistical information corresponding to the past road conditions;
  • a Real-time length information refers to the length of time required for the current time period or the time of the road.
  • the road condition may be a road condition corresponding to the path or a road condition corresponding to the sub path.
  • the system structure of the present invention includes at least two logical function modules, namely: a terminal device and a server. among them:
  • the terminal device is configured to send a path request message to the server, where the path request message includes location information and time information;
  • the terminal device can be a mobile phone, a personal data assistant (PDA) or any other portable navigation device (PND: Portable Navigation Devices).
  • PDA personal data assistant
  • PND Portable Navigation Devices
  • a common feature of this category of terminal equipment is: It can provide auxiliary navigation for traffic and driving.
  • devices of this category generally have corresponding chips for GPS or other navigation satellites.
  • the positioning function can be implemented by itself or with the aid of the network.
  • the device can also implement the positioning function by means of the communication network. In the present invention, the implementation of the specific positioning function of the device is not restricted.
  • the server is used to obtain corresponding path information based on location information and time information, The path information is returned to the terminal device.
  • the server its functions include: calculation and acquisition of traffic paths and positioning functions.
  • the positioning function means that the terminal device can provide auxiliary data or calculate the current location information of the terminal, and the server needs to have a corresponding positioning protocol support with the positioning terminal; at the same time, the server also needs to have an interface relationship with the auxiliary data source.
  • auxiliary data source for example: satellite information; in addition, in this embodiment, the server also needs to have an interface relationship with the path and the road condition information source to obtain corresponding road condition information.
  • the road condition information is acquired by the server in the present invention and the corresponding path information is calculated based on it to satisfy the user's needs.
  • the road condition information may be various, including but not limited to: mobile terminal distribution data, moving speed data of the mobile terminal, sensor information on both sides of the road, and the like.
  • the above-mentioned path and road condition information source can be provided for government functions (traffic, public security, urban management, etc.) or enterprises.
  • the information may be in the form of vehicle distribution information, mobile terminal distribution data, auxiliary or speed information of the mobile terminal, road sensor information, and the like.
  • Embodiment 1 of the present invention will be described below with reference to FIG.
  • the terminal device requests the server to acquire the one-time path information.
  • the specific description is as follows:
  • Step 301 Establish a data link between the terminal device and the server, or restore a data link that already exists between the two.
  • Step 302 The terminal device sends a path request message to the server, where the parameters included are: time information and location information;
  • the time information may be the current time or some time in the future, or a certain time period;
  • the location information is, for example, the Zhonghuamen to the central gate, or the path information between the two latitude and longitude points, and may also be the name or logo of a certain road.
  • Information for example: Zhongshan Road, G312 Road;
  • Step 303 If the current location is involved in step 302, the server and the terminal device may also need to perform a positioning service session process to obtain the current location information of the terminal device, or The terminal directly reports the location information of the existing location to the server; if the current location is not involved, skip this step, and perform step 304;
  • Step 304 After receiving the path request message from the terminal device, the server interacts with the path and the road condition information source, and specifically includes: the server requests, from the information source, traffic data of a certain road segment at a certain time point or time period, Step optional;
  • the path and road condition information source is used to provide real-time road conditions or historical road conditions for the time indicated by the time information, and may be, for example, a traffic control system, or any database that stores the road condition information.
  • the traffic condition information can also be obtained by moving the speed of the terminal located in the relevant road section of the communication network.
  • Traffic data includes, for example, traffic congestion factors, road quality (road grades, roadblocks), cost factors (such as toll booth information), and the like.
  • Step 305 The server performs calculation based on the acquired data to obtain path information.
  • the server can use existing technology to obtain a path based on location information in combination with time and road condition information.
  • the path information includes: one or more paths and corresponding time length information (average time length information estimated according to historical average traffic conditions or real-time length information estimated according to real-time traffic conditions);
  • Step 306 After obtaining the path information, the server sends the path information to the terminal device, and the process ends.
  • the path request message sent by the terminal device to the server in step 302 further includes real-time mode information, the time length information included in the path information is real-time length information;
  • the time length information included in the path information is estimated time length information
  • the time length information included in the path information is the average time length information.
  • Embodiment 2 of the present invention will be described below with reference to FIG.
  • the terminal device is directed to the service
  • the server cycle requests the path information.
  • Step 401 Establish a data link between the terminal device and the server or restore a data link that already exists between the two.
  • Step 402 The terminal device sends a path request message to the server, where the parameters included are: time information, location information, and acquisition mode information;
  • the time information may be the current time or a certain time in the future, or a certain time period; the location information, for example: the Zhonghuamen to the central gate, or the path information between the two latitude and longitude points, may also be the name of a certain road Or identification information, for example: Zhongshan Road, G312 Road.
  • the obtaining mode information in this embodiment is used to indicate that the path information needs to be obtained in a periodic manner, that is, the manner in which the subsequent path information is acquired to the server, or the acquiring mode and the period duration.
  • Step 403 If the current location is involved in the step 402, the server and the terminal device may also need to perform a location service session process to obtain the current location information of the terminal device, or the terminal may directly report the location information of the terminal to the server. If the current location is not involved, skip this step, go to step 404;
  • Step 404 After receiving the path request message from the terminal device, the server interacts with the path and the road condition information source, and specifically includes: the server requests the information source for the traffic data of a certain section at a certain time point or time period. Step optional;
  • Step 405 The server performs calculation based on the acquired data to obtain path information.
  • Step 406 After calculating, the server obtains one or more path information, and sends the information to the terminal device.
  • Step 407 After completing step 406, the server acquires the current location information of the terminal at a certain period of time, and acquires corresponding road condition data again from the path and the road condition information source. Steps of acquiring the road condition data again from the path and the road condition information source For optional steps.
  • Step 408 The server performs path information calculation.
  • Step 409 After calculating, the server obtains one or more path information, and sends the path information to the terminal device.
  • the above steps 407, 408, and 409 are executed multiple times until the end of the cycle or the terminal is set. A business process that is cancelled or interrupted.
  • Step 410 the process ends.
  • the path request message sent by the terminal device to the server in step 402 further includes real-time mode information, the time length information included in the path information is real-time length information;
  • the path request message sent by the terminal device to the server in step 402 further includes prediction mode information, the time length information included in the path information is estimated time length information;
  • the time length information included in the path information is the average time length information.
  • the terminal device requests the server for the acquisition path information based on the event mode.
  • the so-called event mode means: The server needs to judge the occurrence of the corresponding event. Once it happens, the path information needs to be calculated and sent to the terminal device (the event content can also be sent to the terminal).
  • Step 501 Establish a data link between the terminal device and the server or restore a data link that already exists between the two;
  • Step 502 The terminal device sends a path request message to the server, where the parameters include: time information, location information, and acquisition mode information;
  • the time information may be the current time or a certain time in the future, or a certain time period; the location information, for example: the Zhonghuamen to the central gate, or the path information between the two latitude and longitude points, may also be the name of a certain road Or identification information, for example: Zhongshan Road, G312 Road.
  • the obtaining mode information in this embodiment is used to indicate that the path information is triggered by an event, that is, the server is instructed to obtain subsequent path information acquisition based on a specific event trigger.
  • Step 503 If the current location is involved in the step 502, the server and the terminal device may also need to perform a positioning service session process to obtain the current location information of the terminal device, or the terminal may report the location information of the terminal directly. To the server; if the current location is not involved, skip this step, go to step 504;
  • Step 504 After receiving the path request message from the terminal device, the server periodically follows the road.
  • the interaction between the path and the road information source includes: the server requests the information source for the traffic data of a certain section at a certain time point or time period;
  • Step 505 the server performs calculation based on the obtained data, and determines whether a specific event occurs, if yes, step 506 is performed, and if not, executing 507;
  • Step 506 After calculating the acquired one or more path information, the server sends the path information to the terminal device or sends the path information together with the generated event information to the terminal device. Step 507, after a period of time, the server and the path And the traffic information source interacts to determine whether a specific event occurs. If there is an event, step 508 is performed, if the step is not returned;
  • Step 508 If the location of the current terminal device is specified in step 502, the server also needs to interact with the terminal device to acquire location information of the terminal device, where the server is based on the current location information of the terminal device, and Obtaining corresponding path information from the road condition information obtained from the path and the road condition information source;
  • Step 509 After the server obtains one or more path information, the server sends the path information to the terminal device or sends the path information together with the generated event information to the terminal device.
  • the foregoing steps 507, 508, and 509 are performed multiple times. , until the end time or the business process of the terminal device cancellation or interruption.
  • Step 510 the process ends.
  • the path request message sent by the terminal device to the server in step 502 further includes real-time mode information, the time length information included in the path information is real-time length information;
  • the path request message sent by the terminal device to the server in step 502 further includes prediction mode information, the time length information included in the path information is estimated time length information;
  • the time length information included in the path information is the average time length information.
  • an end user can request and obtain a selectable path from a starting position to a terminal location by using a terminal held by the terminal, and the so-called selectable path refers to a plurality of available terminal devices.
  • the path chosen. These paths not only take into account physical distance factors, but also provide opportunities for path selection with reference to traffic congestion factors, road quality (road grades, roadblocks) and other factors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种路径获取的系统和方法,为用户提供更有参考价值的路径。所述方法包括:终端设备向服务器发送路径请求消息,所述路径请求消息包括位置信息及时间信息,所述服务器根据所述位置信息以及所述时间信息获取相应的路径信息,将所述路径信息返回给所述终端设备。所述系统包括:服务器和终端设备。通过参考时间信息计算路径,可以根据当时的实时路况或者当时的历史路况,为终端设备提供最佳的路径信息。

Description

一种交通路径获取的系统和方法
技术领域
本发明涉及移动通信技术领域, 尤其涉及终端设备与服务器之间进行交 互以获取相应的交通路径信息的系统和方法。
背景技术
作为移动通信系统的特色业务之一, 定位服务一直被认为是未来移动增 值业务的一个亮点。 目前, 北美、 欧洲和亚太和日韩等国家和地区的主要移 动通信运营商都已开通了移动定位业务。 定位业务是移动增值业务中最具吸 引力的业务, 同时也是产业链各个环节最为复杂的业务之一。
LOC是开放移动联盟( Open Mobile Architecture, 简称为 OMA )于 2002 年将 LIF论坛的工作, 以及 WAP (Wireless Access Protocol, 无线接入协议) 论坛中的定位业务,以及 3GPP (3rd Partner Project) R6 LCS (Location Services, 定位服务)第三阶段的相关工作并入而成立的, 其目的是实现制定互联互通的 定位业务标准,制定移动位置业务的规范,确保端到端的互操作。 目前, 0MA L0C在漫游、 Le接口等研究领域逐步取代 3GPP和 3GPP2 ,成为定位 (Location) 业务标准的主要国际规范制订者。 OMA LOC的主要工作就是制定移动通信 网络中基于用户面的定位技术, 实现对过去移动通信网络中的控制面定位技 术中相关定位参数在 IP通道中的传输, 进而实现定位, 同时也减少了对核心 网的依赖, 减少了耦合, 增加了灵活性。 随着需要的不断发展, OMA LOC 也逐步研究如何为非移动通信网络提供定位服务,例如固定接入方式的定位 , 因特网方式的定位, WLAN方式的定位等。
目前, 根据开放移动联盟(OMA )定位组(LOC )定义的安全用户面定 位技术( Secure User Plane Location, SUPL ) , 该定位系统主要由三个功能实 体构成, 分别为 SUPL定位业务代理(SUPL Agent ) , SUPL服务器 (SLP)和 支持 SUPL的终端 (SET)。 SUPL代理可以向应用提供一个访问定位业务的功 能, 是定位业务系统的向外部提供的第一个业务接入点。 应用通过 SUPL代 理请求对某一个或者多个 SET终端进行定位。 发明内容
在上述 OMA SUPL架构中, 终端可以从归属地服务器获取位置信息。但 是, 目前 SUPL技术并不能够支持对从某一位置到另外一个目标位置的路径 选择, 并且该路径选择没有考虑到交通拥堵情况等因素。
本发明要解决的技术问题是提供一种交通路径获取的系统和方法, 为用 户提供更有参考价值的交通路径。
为解决上述技术问题, 本发明提供了一种交通路径获取的方法, 包括: 终端设备向服务器发送路径请求消息, 所述路径请求消息包括位置信息 及时间信息, 所述服务器根据所述位置信息以及所述时间信息获取相应的路 径信息, 将所述路径信息返回给所述终端设备。
优选地, 所述位置信息包括起点位置信息和终点位置信息, 或者路段名 称, 或者路段编号。
优选地,所述起点位置信息或终点位置信息为所述终端设备的当前位置; 所述服务器根据所述位置信息以及所述时间信息获取相应的路径信息,包括: 据位置信息以及所述时间信息获取相应的路径信息。
优选地, 所述路径信息包括一条或多条路径信息, 或者一段或者多段子 路径信息。
优选地, 所述路径信息还包括时间长度信息。
优选地, 所述路径请求消息中还包括获取方式信息, 所述获取方式信息 包括以下任意一种方式: 单次获取; 周期性获取; 事件触发获取; 周期获取 和事件触发获取。
优选地, 所述路径请求消息中还包括以下信息之一: 实时方式、 预测方 式、 平均方式。
为解决上述技术问题, 本发明还提供了一种路径获取的系统, 包括: 服 务器和终端设备, 其中: 所述终端设备设置为: 向服务器发送路径请求消息, 所述路径请求消息 包括位置信息及时间信息;
所述服务器设置为: 根据所述位置信息以及所述时间信息获取相应的路 径信息, 将所述路径信息返回给所述终端设备。
优选地, 所述位置信息包括起点位置信息和终点位置信息, 或者路段名 称, 或者路段编号。
优选地,所述起点位置信息或终点位置信息为所述终端设备的当前位置; 置信息。
优选地, 所述路径信息包括一条或多条路径信息, 或者一段或者多段子 路径信息。
优选地, 所述路径信息还包括时间长度信息。
优选地, 所述路径请求消息中还包括获取方式信息, 所述获取方式信息 包括以下任意一种方式: 单次获取; 周期性获取; 事件触发获取; 周期获取 和事件触发获取。
优选地, 所述路径请求消息中还包括以下信息之一: 实时方式、 预测方 式、 平均方式。
本发明还提供了一种交通路径获取的服务器, 所述服务器设置为: 根据 位置信息以及时间信息获取相应的路径信息, 将所述路径信息返回给终端设 备;
所述路径请求消息包括位置信息及时间信息, 所述路径请求消息由所述 终端设备向所述服务器发送。
优选地, 所述位置信息包括起点位置信息和终点位置信息, 或者路段名 称, 或者路段编号。
优选地,所述起点位置信息或终点位置信息为所述终端设备的当前位置; 前位置信息。
优选地, 所述路径信息包括一条或多条路径信息, 或者一段或者多段子 路径信息。
优选地, 所述路径请求消息中还包括获取方式信息, 所述获取方式信息 包括以下任意一种方式: 单次获取; 周期性获取; 事件触发获取; 周期获取 和事件触发获取。
优选地, 所述路径请求消息中还包括以下信息之一: 实时方式、 预测方 式、 平均方式。
釆用本发明实施例的方案, 终端用户可以利用所持有的终端请求并获得 从起始位置到终端位置的可选择的路径, 所谓可选择的路径是指多条可供终 端设备选择的路径。 这些路径不仅仅考虑到物理的实际距离因素, 同时, 本 发明方案为路径选择参考交通拥堵因素、 道路质量(道路等级、 路障) 因素 等其它因素提供可能。 此外, 本发明还考虑了单次、 多次、 周期等方式的路 径选择服务。 无疑, 本发明提供了一种功能更强大的路径判断和选择系统。 附图概述
图 1是本发明实施例的系统结构图;
图 2是本发明实施例的单次获取路径信息的流程图;
图 3是本发明实施例的周期方式路径信息获取的流程图;
图 4是本发明实施例的事件方式路径信息获取的流程图。
本发明的较佳实施方式
本发明的方案包括: 终端设备向服务器发送路径请求消息, 所述路径请 求消息包括位置信息及时间信息, 所述服务器根据所述位置信息以及所述时 间信息获取相应的路径信息, 将所述路径信息返回给所述终端设备。
上述时间信息是指使用所请求的路径的时间信息, 得到的路径信息即所 请求路径在该时间信息范围内的路径信息。 通过参考时间信息获取路径, 可 以根据当时的实时路况或者当时的历史路况, 釆用实时或者预测的方式, 为 终端设备提供最佳的道路交通信息。
上述位置信息包括所请求的路径的起点位置信息和终点位置信息, 或者 路段名称, 或者路段编号。 请求的如果是路段名称或者路段编号, 则相当于 隐含了起点位置和终点位置信息。 起点位置信息可以是终端设备的当前位置 信息也可以是其它位置的位置信息。 同理, 终点位置信息可以是终端设备的 当前位置信息也可以是其它位置的位置信息。 终端设备设定起点位置或终点 位置为终端设备当前位置, 则服务器通过与终端设备交互获取该终端设备当 前位置信息, 例如通过安全用户面定位方式进行定位或者通过卫星导航方式 进行位置计算。
所请求的路径的时间信息可以是时间段信息(包括起点时间和终点时间) 也可以是时间点信息 (起点时间或终点时间) 。 起点时间可以是当前时间或 者是将来的某个时间。
优选地, 上述路径请求消息中还包括获取方式信息, 包括: 单次获取, 或多次获取, 多次获取包括: 周期性获取, 事件触发获取, 或周期获取和事 件触发获取。 其中, 周期性获取是指每隔一定时间, 服务器计算路径信息, 然后返回给终端设备; 事件触发获取是指当服务器获知为该终端计算的路径 上有事件发生时 (例如: 交通事件、 路障、 危险路段提示等) , 向终端设备 发送将路径信息发送给终端设备。
如果终端设备向服务器发送的路径请求消息中, 如果设置获取方式为多 次获取, 且请求位置信息中包括终端当前位置信息, 则服务器在每次计算路 径之前, 均需与终端交互进行当前位置计算。
上述服务器计算的路径信息包括一条或多条路径的路径信息, 或者一段 或者多段子路径信息。
优选地, 所述路径请求消息中还包括以下信息之一: 实时方式、 预测方 式、 平均方式。
服务器计算的路径信息中还可包括时间长度信息 (所述路径信息对应的 时间长度信息和 /或子路径信息对应的时间长度信息)。 该时间长度信息包括 预计时间长度信息、 平均时间长度信息或实时长度信息。
如果所述路径请求消息中包括实时方式信息, 则所述路径信息还包括实 时长度信息; 如果所述路径请求消息中包括预测方式信息, 则所述路径信息 还包括预计时间长度信息; 如果所述路径请求消息中包括平均方式信息, 则 所述路径信息还包括平均时间长度信息。 实时方式信息、 预测方式信息或平 均方式信息可以与上述获取方式信息组合使用。
下面对预计时间长度信息、平均时间长度信息和实时长度信息进行说明:
A预计时间长度信息是指: 根据对未来某段时间或者某时间点的路况所 对应的时间长度信息估计;
A平均时间长度信息是指: 基于过去的路况对应的时间长度统计信息计 算的平均时间长度信息;
A实时长度信息: 指当前的时间段或者时间点的路况所需的时间长度信 息。
上述路况可以是路径对应的路况也可能是子路径对应的路况。
以下结合图 1 , 对本发明的结构图进行描述。
本发明的系统结构至少包括两个逻辑功能模块, 分别是: 终端设备和服 务器。 其中:
*该终端设备, 用于向服务器发送路径请求消息, 该路径请求消息包括 位置信息及时间信息;
终端设备可以为手机、 个人数据助理(PDA )或者是其它一切的可携带 导航设备(PND: Portable Navigation Devices )。 该类别的终端设备的一个公 共的特性是: 可以为交通、 驾驶提供辅助导航功能。 另外, 该类别设备一般 都具备 GPS或者其它导航卫星的相应的芯片。 一般可以自己或者借助网络的 辅助实现定位功能, 同时, 该类设备也可以借助通信网络实现定位功能。 在 本发明中, 该类设备具体的定位功能的实现方式不做约束。
•该服务器, 用于根据位置信息以及时间信息获取相应的路径信息, 将 该路径信息返回给终端设备。
关于服务器, 其具备的功能包括: 交通路径的计算和获取以及定位功能。 所述定位功能是指其可以为终端设备提供辅助数据或者计算终端当前位置信 息, 服务器需要与定位终端之间有相应的定位协议支撑; 同时, 服务器还需 要与辅助数据源之间有接口关系, 用于获取辅助数据源, 例如: 卫星信息; 此外, 在本实施例中, 服务器还需要与路径及路况信息源之间有接口关系, 用以获取相应的路况信息。 所述路况信息在本发明中是被服务器获取并基于 它计算相应的路径信息以满足用户的需求。 所述路况信息有多种, 包括但不 限于: 移动终端分布数据、 移动终端的移动速度数据、 道路两侧的传感器信 息等等。
上述路径及路况信息源, 其可以为政府职能部分(交通、 公安、 城管等) 或者企业所提供。 信息的方式可以为车辆分布信息、 移动终端分布数据、 辅 助或者移动终端的速度信息、 道路传感器信息等等。 路径及路况信息源与服 务器之间有接口, 可以为服务器所调用。
实施例 1
以下结合图 2来说明本发明的实施例一。 在本实施例中, 终端设备向服 务器请求获取一次性的路径信息。 所谓一次性是指: 服务器在接收到请求后, 只进行一次路径计算并返回一次。 具体描述如下:
步骤 301 , 终端设备与服务器之间建立数据链接或者恢复二者之间已经 存在的数据链接;
步骤 302 , 终端设备向服务器发送路径请求消息, 在该消息中, 包括的 参数有: 时间信息、 位置信息;
时间信息可以为当前时间或者未来的某个时间, 或者某个时间段; 位置 信息例如: 中华门到中央门, 或者二个经纬点之间的路径信息, 也可以为某 个路的名称或者标识信息, 例如: 中山路, G312路;
步骤 303 , 如果在步骤 302 中还涉及到当前位置, 则服务器与终端设备 可能还需要进行定位业务会话过程以获取终端设备当前的位置信息, 也可能 终端将自己已有的位置信息直接上报到服务器; 如果不涉及到当前位置, 则 跳过本步骤, 执行步骤 304;
步骤 304 , 服务器在接收到来自终端设备的路径请求消息后, 与路径及 路况信息源之间进行交互, 具体包括: 服务器向信息源请求在某时间点或者 时间段内某路段的交通数据, 本步骤可选;
路径及路况信息源用于提供该时间信息所指示时间的实时路况或者历史 路况, 例如可以是交管局系统, 也可以是任何一个保存有该路况信息的数据 库。 路况信息除了可通过交管局提供的监控信息得到, 还可以通过对通信网 中位于相关路段的终端的移动速度来获得。
交通数据例如包括: 交通拥堵因素、 道路质量(道路等级、 路障) 、 成 本因素 (例如收费站信息)等。
步骤 305 , 服务器基于获取的数据进行计算, 获得路径信息;
服务器可利用现有技术根据位置信息结合时间和路况信息获得路径。 路径信息包括: 一个或者多个路径以及对应时间长度信息 (根据历史平 均交通状况预计的平均时间长度信息或者根据实时交通状况预计的实时长度 信息) ;
步骤 306 , 服务器在得到路径信息后, 将路径信息发送给终端设备, 流 程结束。
如果步骤 302中终端设备向服务器发送的路径请求消息中还包括实时方 式信息, 则路径信息中包含的时间长度信息为实时长度信息;
如果步骤 302中终端设备向服务器发送的路径请求消息中还包括预测方 式信息, 则路径信息中包含的时间长度信息为预计时间长度信息;
如果步骤 302中终端设备向服务器发送的路径请求消息中还包括平均方 式信息, 则路径信息中包含的时间长度信息为平均时间长度信息。
实施例 2
以下结合图 3来说明本发明的实施例二。 在本实施例中, 终端设备向服 务器周期请求获取路径信息。 所谓周期性是指: 服务器需要周期方式的计算 获取相应的路径信息, 然后发送到终端设备。 具体流程描述如下:
步骤 401 , 终端设备与服务器之间建立数据链接或者恢复二者之间已经 存在的数据链接;
步骤 402 , 终端设备向服务器发送路径请求消息, 在该消息中, 包括的 参数有: 时间信息、 位置信息、 获取方式信息;
其中, 时间信息可以为当前时间或者未来的某个时间, 或者某个时间段; 位置信息例如: 中华门到中央门, 或者二个经纬点之间的路径信息, 也可以 为某个路的名称或者标识信息, 例如: 中山路, G312路。 本实施例中的获 取方式信息用于指示需要周期方式获取路径信息, 即向服务器指示后续的路 径信息获取的方式, 或者获取方式和周期时长。
步骤 403 , 如果在步骤 402 中还涉及到当前位置, 则服务器与终端设备 可能还需要进行定位业务会话过程以获取终端设备当前的位置信息, 也可能 终端将自己已有的位置信息直接上报到服务器; 如果不涉及到当前位置, 则 跳过本步骤, 执行步骤 404;
步骤 404 , 服务器在接收到来自终端设备的路径请求消息后, 与路径及 路况信息源之间进行交互, 具体包括: 服务器向信息源请求在某时间点或者 时间段内某路段的交通数据, 本步骤可选;
步骤 405 , 服务器基于获取的数据进行计算, 获得路径信息;
步骤 406 , 服务器在计算获取了一个或者多个路径信息后, 将信息发送 给终端设备;
步骤 407 , 在完成步骤 406之后 , 服务器每隔一定的周期时间, 获取终 端当前的位置信息, 以及从路径及路况信息源再次获取相应的路况数据; 从路径及路况信息源再次获取路况数据的步骤为可选步骤。
步骤 408, 服务器进行路径信息的计算;
步骤 409 , 服务器在计算获取了一个或者多个路径信息后, 将该路径信 息发送给终端设备;
上述步骤 407、 408、 409循环执行多次, 直到周期结束时间或者终端设 备取消或中断的业务流程。
步骤 410, 流程结束。
如果步骤 402中终端设备向服务器发送的路径请求消息中还包括实时方 式信息, 则路径信息中包含的时间长度信息为实时长度信息;
如果步骤 402中终端设备向服务器发送的路径请求消息中还包括预测方 式信息, 则路径信息中包含的时间长度信息为预计时间长度信息;
如果步骤 402中终端设备向服务器发送的路径请求消息中还包括平均方 式信息, 则路径信息中包含的时间长度信息为平均时间长度信息。
实施例 3
以下结合图 4来说明本发明的实施例三。 在本实施例中, 终端设备向服 务器请求基于事件方式的获取路径信息。 所谓事件方式是指: 服务器需要判 断相应的事件的发生情况, 一但有发生则需要将路径信息计算出来, 然后发 送到终端设备(还可将事件内容一并发送给终端) 。 具体流程描述如下: 步骤 501 , 终端设备与服务器之间建立数据链接或者恢复二者之间已经 存在的数据链接;
步骤 502 , 终端设备向服务器发送路径请求消息, 在该消息中, 包括的 参数有: 时间信息、 位置信息、 获取方式信息;
其中, 时间信息可以为当前时间或者未来的某个时间, 或者某个时间段; 位置信息例如: 中华门到中央门, 或者二个经纬点之间的路径信息, 也可以 为某个路的名称或者标识信息, 例如: 中山路, G312路。 本实施例中的获 取方式信息用于指示通过事件触发获取路径信息, 即向服务器指示后续的路 径信息获取是基于特定的事件触发。
步骤 503 , 如果在步骤 502 中还涉及到当前位置, 则服务器与终端设备 之间可能还需要进行定位业务会话过程以获取终端设备当前的位置信息, 也 可能终端将自己已有的位置信息直接上报到服务器;如果不涉及到当前位置, 则跳过本步骤, 执行步骤 504;
步骤 504 , 服务器在接收到来自终端设备的路径请求消息后, 定期与路 径及路况信息源之间进行交互, 具体包括: 服务器向信息源请求在某时间点 或者时间段内某路段的交通数据;
步骤 505 , 服务器基于获取的数据进行计算, 判断是否有特定的事件发 生, 如果有, 则执行步骤 506 , 如果没有, 则执行 507;
步骤 506 , 服务器在计算获取了一个或者多个路径信息后, 将路径信息 发送给终端设备或者将路径信息和发生的事件信息一并发送给终端设备; 步骤 507 , 间隔一段时间后, 服务器与路径及路况信息源进行交互, 以 确定是否有特定的事件发生, 如果有事件, 则执行步骤 508 , 如果没有返回 本步骤;
步骤 508 , 如果在步骤 502 中指定的是基于当前终端设备的位置, 则在 本步骤中服务器还需要与终端设备进行交互, 以获取终端设备的位置信息, 服务器基于终端设备的当前的位置信息以及从路径及路况信息源处获取的路 况信息计算获取相应的路径信息;
步骤 509 , 服务器在计算获取了一个或者多个路径信息后, 将路径信息 发送给终端设备或者将路径信息和发生的事件信息一并发送给终端设备; 上述步骤 507、 508、 509循环执行多次, 直到结束时间或者终端设备取 消或中断的业务流程。
步骤 510、 流程结束。
如果步骤 502中终端设备向服务器发送的路径请求消息中还包括实时方 式信息, 则路径信息中包含的时间长度信息为实时长度信息;
如果步骤 502中终端设备向服务器发送的路径请求消息中还包括预测方 式信息, 则路径信息中包含的时间长度信息为预计时间长度信息;
如果步骤 502中终端设备向服务器发送的路径请求消息中还包括平均方 式信息, 则路径信息中包含的时间长度信息为平均时间长度信息。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
当然, 本发明还可有其他多种实施例, 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
工业实用性 釆用本发明实施例的方案, 终端用户可以利用所持有的终端请求并获得 从起始位置到终端位置的可选择的路径, 所谓可选择的路径是指多条可供终 端设备选择的路径。 这些路径不仅仅考虑到物理的实际距离因素, 同时, 本 发明方案为路径选择参考交通拥堵因素、 道路质量(道路等级、 路障) 因素 等其它因素提供可能。

Claims

权 利 要 求 书
1、 一种交通路径获取的方法, 包括:
终端设备向服务器发送路径请求消息, 所述路径请求消息包括位置信息 及时间信息, 所述服务器根据所述位置信息以及所述时间信息获取相应的路 径信息, 将所述路径信息返回给所述终端设备。
2、 如权利要求 1所述的方法, 其中,
所述位置信息包括起点位置信息和终点位置信息, 或者路段名称, 或者 路段编号。
3、 如权利要求 2所述的方法, 其中,
所述起点位置信息或终点位置信息为所述终端设备的当前位置; 所述服务器根据所述位置信息以及所述时间信息获取相应的路径信息, 息, 根据位置信息以及所述时间信息获取相应的路径信息。
4、 如权利要求 1所述的方法, 其中,
所述路径信息包括一条或多条路径信息,或者一段或者多段子路径信息。
5、 如权利要求 1所述的方法, 其中,
所述路径信息还包括时间长度信息。
6、 如权利要求 1所述的方法, 其中,
所述路径请求消息中还包括获取方式信息, 所述获取方式信息包括以下 任意一种方式: 单次获取; 周期性获取; 事件触发获取; 周期获取和事件触 发获取。
7、 如权利要求 1-6中任一权利要求所述的方法, 其中,
所述路径请求消息中还包括以下信息之一: 实时方式、 预测方式、 平均 方式。
8、 一种交通路径获取的系统, 包括: 服务器和终端设备, 其中: 所述终端设备设置为: 向服务器发送路径请求消息, 所述路径请求消息 包括位置信息及时间信息;
所述服务器设置为: 根据所述位置信息以及所述时间信息获取相应的路 径信息, 将所述路径信息返回给所述终端设备。
9、 如权利要求 8所述的系统, 其中,
所述位置信息包括起点位置信息和终点位置信息, 或者路段名称, 或者 路段编号。
10、 如权利要求 9所述的系统, 其中,
所述起点位置信息或终点位置信息为所述终端设备的当前位置; 前位置信息。
11、 如权利要求 8所述的系统, 其中,
所述路径信息包括一条或多条路径信息 ,或者一段或者多段子路径信息。
12、 如权利要求 7所述的系统, 其中,
所述路径信息还包括时间长度信息。
13、 如权利要求 7所述的系统, 其中,
所述路径请求消息中还包括获取方式信息, 所述获取方式信息包括以下 任意一种方式: 单次获取; 周期性获取; 事件触发获取; 周期获取和事件触 发获取。
14、 如权利要求 8-13中任一权利要求所述的系统, 其中,
所述路径请求消息中还包括以下信息之一: 实时方式、 预测方式、 平均 方式。
15、 一种交通路径获取的服务器, 所述服务器设置为: 根据位置信息以 及时间信息获取相应的路径信息, 将所述路径信息返回给终端设备;
所述路径请求消息包括位置信息及时间信息, 所述路径请求消息由所述 终端设备向所述服务器发送。
16、 如权利要求 15所述的服务器, 其中, 所述位置信息包括起点位置信 息和终点位置信息, 或者路段名称, 或者路段编号。
17、 如权利要求 16所述的服务器, 其中, 所述起点位置信息或终点位置 信息为所述终端设备的当前位置; 前位置信息。
18、 如权利要求 15所述的服务器, 其中, 所述路径信息包括一条或多条 路径信息, 或者一段或者多段子路径信息。
19、 如权利要求 15所述的服务器, 其中, 所述路径请求消息中还包括获 取方式信息, 所述获取方式信息包括以下任意一种方式: 单次获取; 周期性 获取; 事件触发获取; 周期获取和事件触发获取。
20、 如权利要求 15所述的服务器, 其中, 所述路径请求消息中还包括以 下信息之一: 实时方式、 预测方式、 平均方式。
PCT/CN2012/070046 2011-06-03 2012-01-05 一种交通路径获取的系统和方法 WO2012163090A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110149498.4 2011-06-03
CN201110149498.4A CN102811417B (zh) 2011-06-03 2011-06-03 一种交通路径获取的系统和方法

Publications (1)

Publication Number Publication Date
WO2012163090A1 true WO2012163090A1 (zh) 2012-12-06

Family

ID=47234969

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/070046 WO2012163090A1 (zh) 2011-06-03 2012-01-05 一种交通路径获取的系统和方法

Country Status (2)

Country Link
CN (1) CN102811417B (zh)
WO (1) WO2012163090A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104374397A (zh) * 2013-08-14 2015-02-25 英华达(上海)科技有限公司 一种路线规划系统及其方法
CN109935097A (zh) * 2017-12-16 2019-06-25 北京嘀嘀无限科技发展有限公司 一种路段提示的方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1627044A (zh) * 2003-12-10 2005-06-15 日本先锋公司 向导诱导设备及其系统、方法、程序和记录介质
CN101694749A (zh) * 2009-08-25 2010-04-14 北京世纪高通科技有限公司 一种路径推测方法及装置
CN102080964A (zh) * 2009-12-01 2011-06-01 汤贻芸 自动确定导航目标地址的智能导航方法和系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ523742A (en) * 2000-06-26 2004-09-24 Stratech Systems Ltd Method and system for providing traffic and related information for a specific traveler profile
JP2005049138A (ja) * 2003-07-30 2005-02-24 Pioneer Electronic Corp 交通状況報知装置、そのシステム、その方法、そのプログラム、および、そのプログラムを記録した記録媒体
CN1700219A (zh) * 2004-05-21 2005-11-23 深圳市海之力科技实业有限公司 一种提供道路交通状况的方法
CN1881277A (zh) * 2005-06-17 2006-12-20 Sk株式会社 交通信息提供系统及其方法
CN101470947A (zh) * 2007-12-25 2009-07-01 上海爱国者数码科技有限公司 可显示道路交通信息的信息获取终端

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1627044A (zh) * 2003-12-10 2005-06-15 日本先锋公司 向导诱导设备及其系统、方法、程序和记录介质
CN101694749A (zh) * 2009-08-25 2010-04-14 北京世纪高通科技有限公司 一种路径推测方法及装置
CN102080964A (zh) * 2009-12-01 2011-06-01 汤贻芸 自动确定导航目标地址的智能导航方法和系统

Also Published As

Publication number Publication date
CN102811417B (zh) 2016-09-28
CN102811417A (zh) 2012-12-05

Similar Documents

Publication Publication Date Title
KR100847345B1 (ko) 위치 기반 애플리케이션에 따른 이동국의 위치 결정을용이하게 하기 위한 장치 및 관련된 방법
US7953421B2 (en) Disposal method of location information request in location service
JP5678219B2 (ja) Supl3.0に基づいて処理する装置、システム及びその方法
US7818114B2 (en) Methods, apparatuses, and computer program product for traffic data aggregation using virtual trip lines and GPS-enabled mobile handsets
ES2549484T3 (es) Procedimiento y aparato para soportar servicios de localización con una capa de servicio de localización racionalizado
CN103477664A (zh) 用于经由以位置标识符为基础选择性地授权对访问位置估计的请求的位置隐私的方法、装置和物品
US20080242373A1 (en) Method and device for providing position information
CN103200679A (zh) 用安全用户平面定位(supl)进行的位置报告
JP2008537859A (ja) 無線デバイスを使用する端末間動作のモニタリング及び測定システム及び方法
WO2011120404A1 (zh) 支持supl技术的终端定位方法、装置和系统
CN103168459A (zh) 用于经由通用位置会话来支持位置服务的方法和装置
EP1773076A1 (en) A method for locating mobile terminal
WO2004036930A1 (fr) Procede de positionnement d'un combine agps dans des reseaux de communication mobile
CN105144790A (zh) 远程局部无线网络中的抢先认证
KR100651443B1 (ko) 특정 지역을 기준으로 이동단말기의 위치 유형 정보를선택적으로 제공하기 위한 방법
WO2019218780A1 (zh) 一种接入类型选择方法、设备及存储介质
Han et al. A gateway and framework for telematics systems independent on mobile networks
WO2012163090A1 (zh) 一种交通路径获取的系统和方法
US20100128704A1 (en) Mulitcasting, location services, payment methods and performance management in broadband wireless access networks
JP5197764B2 (ja) PHS網でのロケーティング(locating)およびアシスタント・ロケーティングの方法および装置
CN102387493B (zh) 定位能力信息的传输方法、装置及系统
CN111193621B (zh) 一种物联网rtos设备端与服务端保障数据通信的方法
CN102954797A (zh) 一种导航方法、导航服务器及终端
KR20070036649A (ko) 텔레매틱스 서비스 전송 게이트웨이 장치 및 그 동작 방법
Yoshihara et al. Content Delivery Platform on ITS Road-Vehicle Communication System Based on Radio over Fiber

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12794003

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12794003

Country of ref document: EP

Kind code of ref document: A1