WO2017071188A1 - 获取地图信息的方法、导航方法及设备 - Google Patents

获取地图信息的方法、导航方法及设备 Download PDF

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Publication number
WO2017071188A1
WO2017071188A1 PCT/CN2016/082815 CN2016082815W WO2017071188A1 WO 2017071188 A1 WO2017071188 A1 WO 2017071188A1 CN 2016082815 W CN2016082815 W CN 2016082815W WO 2017071188 A1 WO2017071188 A1 WO 2017071188A1
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WIPO (PCT)
Prior art keywords
map information
information
roadside device
map
vehicle terminal
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Application number
PCT/CN2016/082815
Other languages
English (en)
French (fr)
Inventor
李文锐
徐勇
邹禹
陈昆盛
林伟
刘鹏
李丹
Original Assignee
乐视控股(北京)有限公司
乐卡汽车智能科技(北京)有限公司
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Publication of WO2017071188A1 publication Critical patent/WO2017071188A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • 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
    • G01C21/34Route searching; Route guidance
    • 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
    • G01C21/38Electronic maps specially adapted for navigation; Updating thereof
    • G01C21/3885Transmission of map data to client devices; Reception of map data by client devices
    • G01C21/3893Transmission of map data from distributed sources, e.g. from roadside stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/06Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]

Definitions

  • Embodiments of the present invention relate to communication technologies, and in particular, to a method, a navigation method, and a device for acquiring map information.
  • driving navigation technology can be equipped with an electronic navigation system through a car navigation device, a car machine or other equipment, and real-time navigation of the driving route according to the electronic map.
  • Existing driving navigation technology can be navigated using offline electronic maps or real-time electronic maps.
  • the technology of using offline electronic maps for navigation requires downloading a large amount of map information packets in advance of driving navigation.
  • the size of the map information packets can usually reach hundreds of megabytes or gigabytes, and the map information has When changing, you need to update the map packet in advance.
  • the technology of real-time electronic map needs to download the required map information in real time during the navigation process, but it consumes a lot of mobile traffic and is easily affected by network signals and network speed.
  • the embodiment of the invention provides a method, a navigation method and a device for acquiring map information, which are used to solve the defects that the offline electronic map has large storage capacity, is not updated in time, and the real-time electronic map consumes traffic, is limited by the network state, and realizes real-time update localization. Map, and map information acquisition methods that are not restricted by network status and traffic.
  • An embodiment of the present invention provides a method for acquiring map information, which is applied to an in-vehicle terminal, and includes:
  • the roadside device And receiving, by the roadside device, the map information returned according to the map information; wherein the map information is map information in a preset geographic range stored by the roadside device.
  • a method for acquiring map information which is applied to a roadside device, includes:
  • map information is map information in a preset geographic range stored by the roadside device.
  • a navigation method which is applied to an in-vehicle terminal, and includes:
  • the map information is map information in a preset geographic range stored by the roadside device;
  • the navigation information is displayed.
  • an in-vehicle terminal including:
  • a map information requesting module configured to send a map information request to a roadside device corresponding to the current location; wherein the in-vehicle terminal communicates with the roadside device through a short-range communication protocol;
  • the map information receiving module is configured to receive map information that is requested by the roadside device according to the map information, where the map information is map information in a preset geographic range stored by the roadside device.
  • a roadside device including:
  • a map request receiving module configured to receive a map information request from the vehicle-mounted terminal; wherein the vehicle-mounted terminal communicates with the roadside device through a short-range communication protocol;
  • a map information sending module configured to send the stored map information to the in-vehicle terminal; the map information is map information in a preset geographic range stored by the roadside device.
  • an in-vehicle terminal including:
  • a navigation request sending module configured to send a navigation request to a roadside device corresponding to the current location; wherein the in-vehicle terminal communicates with the roadside device by using a short-range communication protocol, where the navigation request includes start address information and Destination address information;
  • a route information receiving module configured to receive at least one route information from the roadside device that meets the start address information and the destination address information
  • a target route determining module configured to determine target route information according to a user selecting operation of the route information
  • a map information requesting module configured to send a map information request to a roadside device corresponding to the current location; wherein the in-vehicle terminal communicates with the roadside device through a short-range communication protocol;
  • a map information receiving module configured to receive map information that the roadside device requests to return according to the map information; wherein the map information is map information in a preset geographic range stored by the roadside device;
  • a navigation information generating module configured to generate navigation information according to the target route information and the map information
  • a navigation information display module is configured to display the navigation information.
  • an in-vehicle terminal including:
  • the processor, the memory, and the communication interface complete communication with each other through the bus;
  • the communication interface is used for information transmission between the vehicle-mounted terminal and the roadside device;
  • the processor is configured to invoke logic instructions in the memory to perform the following methods:
  • the roadside device And receiving, by the roadside device, the map information returned according to the map information; wherein the map information is map information in a preset geographic range stored by the roadside device.
  • a computer program comprising program code for performing the following operations:
  • the roadside device And receiving, by the roadside device, the map information returned according to the map information; wherein the map information is map information in a preset geographic range stored by the roadside device.
  • a storage medium for storing a computer program as described above is provided.
  • a roadside device including:
  • the processor, the memory, and the communication interface complete communication with each other through the bus;
  • the communication interface is used for information transmission between the roadside device and the vehicle terminal;
  • the processor is configured to invoke logic instructions in the memory to perform the following methods:
  • map information is map information in a preset geographic range stored by the roadside device.
  • a computer program comprising program code for performing the following operations:
  • map information is map information in a preset geographic range stored by the roadside device.
  • a storage medium for storing a computer program as described above is provided.
  • an in-vehicle terminal including:
  • the processor, the memory, and the communication interface complete communication with each other through the bus;
  • the communication interface is used for information transmission between the vehicle-mounted terminal and the roadside device;
  • the processor is configured to invoke logic instructions in the memory to perform the following methods:
  • the map information is map information in a preset geographic range stored by the roadside device;
  • the navigation information is displayed.
  • a computer program comprising program code for performing the following operations:
  • the map information is map information in a preset geographic range stored by the roadside device;
  • the navigation information is displayed.
  • a storage medium for storing a computer program as described above is provided.
  • An embodiment of the present invention provides a method, a navigation method, and a device for acquiring map information.
  • an in-vehicle terminal may interact with a roadside device corresponding to a current location, and request to acquire map information stored by the roadside device.
  • map information In order to obtain map information of the range of the current location.
  • the embodiment of the present invention only needs to download the map information in the preset geographic range stored by the roadside device corresponding to the current location, and the amount of data is small. Therefore, compared with the prior art, the need to download the complete offline electronic map needs to be stored.
  • the problem of large space saves the storage space of the vehicle terminal; in addition, the data exchange between the vehicle and the roadside device can be performed by the short-range communication protocol, and the short-range communication protocol can not use the traffic. Therefore, the embodiment of the present invention can also Resolving the problem that the non-offline electronic map is limited by the network status and the traffic tariff saves the traffic charge of the vehicle terminal, so that the required map information can be quickly and efficiently obtained.
  • FIG. 1 is a flowchart of a first embodiment of a method for acquiring map information according to an embodiment of the present invention
  • FIG. 2 is a flow chart showing the steps of a first embodiment of a navigation method according to an embodiment of the present invention
  • FIG. 3 is a flow chart of steps of a second embodiment of a method for acquiring map information according to an embodiment of the present invention
  • FIG. 4 is a flow chart of steps of a second embodiment of a navigation method according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram of an embodiment of a navigation system according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of an application example of an in-vehicle terminal according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of an application example of a roadside device according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of Embodiment 1 of an in-vehicle terminal according to an embodiment of the present invention.
  • FIG. 9 is a structural block diagram of Embodiment 1 of a roadside device according to an embodiment of the present invention.
  • FIG. 10 is a structural block diagram of Embodiment 2 of an in-vehicle terminal according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a physical structure of a third embodiment of an in-vehicle terminal according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a second embodiment of a roadside device according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram showing the physical structure of a fourth embodiment of a vehicle-mounted terminal according to an embodiment of the present invention.
  • FIG. 1 a flow chart of a first embodiment of a method for acquiring map information according to an embodiment of the present invention is shown.
  • Step 101 Send a map information request to a roadside device corresponding to the current location, where the in-vehicle terminal and the roadside device communicate through a short-range communication protocol;
  • the embodiment of the present invention can be applied to acquiring map information in the process of driving navigation.
  • the embodiment of the present invention can be stored in the roadside device.
  • the preset geographic range may include: a geographic area corresponding to the location of the roadside device, or a geographic area corresponding to the signal coverage of the roadside device.
  • the geographical area corresponding to the location of the roadside device may be a geographic location with a preset size that covers the location of the roadside device; for example, the geographic location corresponding to the location of the roadside device may be: the roadside device
  • the location is the circular center
  • the first distance threshold is a circular area.
  • the geographic location corresponding to the location of the roadside device may be: the location of the roadside device as the reference, east, south, west, A geographical area in which the north direction extends a second distance threshold.
  • the embodiment of the present invention does not limit the specific first distance threshold, the second distance threshold, and the specific preset geographic range.
  • each roadside device only needs to store the map information in the preset geographical range, the data amount of the map information is relatively small, and the vehicle-mounted terminal can obtain the corresponding map information with the preset geographic range as the granularity as compared with the prior art. Therefore, it is possible to reduce the storage space required for the in-vehicle terminal and the traffic required to download the map.
  • the roadside device is the center of the circle, and the map information within a radius of 2 km is used.
  • the vehicle can pass the V2X (Vehicle to X, the vehicle to the outside world).
  • the information exchange technology communicates with the roadside device to acquire map information stored by the roadside device.
  • the next roadside device requests the stored map. Information so that the required map information can be dynamically acquired while driving.
  • V2X is the key technology of intelligent transportation system, which enables vehicles to communicate with vehicles, vehicles and base stations, so that a series of traffic information such as real-time road conditions, road information and pedestrian information can be obtained.
  • the V2X technology may be: the vehicle-mounted terminal uses a DSRC (Dedicated Short Range Communication) to establish a microwave communication link with the roadside device during the vehicle driving process.
  • the roadside device communicates with the roadside device to receive the map information returned by the roadside device according to the map information request, because the vehicle-mounted terminal can request the roadside device by using the short-range communication protocol.
  • Map information while the short-range communication protocol can not use traffic, so the traffic cost can be greatly reduced compared to the prior art.
  • Step 102 Receive map information that is requested by the roadside device according to the map information.
  • the map information is map information in a preset geographic range stored by the roadside device.
  • the vehicle may dynamically request to receive map information stored in the roadside device by using the vehicle terminal, and the map information may be map information within a preset geographic range.
  • the map information may be map information within a preset geographic range.
  • a user needs to drive from the Wudaokou subway station to the Guomao subway station, and during the driving process, the distance from the Wudaokou subway station to the Guomao subway station can be dynamically downloaded.
  • Partial map information instead of downloading the map information of the whole city in one time, because of the map information relative to the whole Beijing, the partial map information corresponding to the distance from Wudaokou subway station to Guomao subway station is only the whole Beijing As part of the map information, the amount of data is small, so that the storage space required for the in-vehicle terminal to download map information can be reduced.
  • the in-vehicle terminal may also store the map information locally in the vehicle-mounted terminal, so that the vehicle-mounted terminal may not be to the roadside device when the current location is passed again next time. Request corresponding map information to save time when downloading map information.
  • the method may further include: performing integration processing on the map information from the plurality of roadside devices sequentially received.
  • the vehicle-mounted terminal sequentially receives map information from a plurality of roadside devices, because in actual applications, the map information stored by the two roadside devices may include repeated information. Therefore, the in-vehicle terminal can perform deduplication processing and integration processing on the repeated information in the map information of the plurality of roadside devices that are received, so that continuous map information can be obtained.
  • the vehicle terminal sequentially receives map information from three roadside devices such as Wudaokou, Zhanchunyuan and Beihang North Gate, among which the map information of Wudaokou roadside equipment is included.
  • map information from Wudaokou along Chengfu Road to the east to Zhanchunyuan West Road.
  • the map information of the side equipment of Zhanchunyuan Road includes the road along the west side of Zhanchunyuan West Road to the north of the Fourth Ring Road.
  • Map information the map information of the North Gate North Gate Road side equipment includes map information along the north fourth ring road auxiliary road eastward to the north navigation north gate section, then the map information of the three roadside equipments can be integrated and processed.
  • Get continuous map information from Wudaokou to Beihang North Gate. Since the preset geographical range stored by the adjacent roadside devices may overlap, and thus there is repeated information between the map information of the adjacent road test devices, for example, the Wudaokou roadside device and the Zhanchunyuan roadside device are stored.
  • the map information of a certain section of the road in the west of the exhibition area therefore, when the map information of the two roadside devices is integrated, the repeated map information can be removed to avoid redundant data storage and save storage space.
  • the vehicle-mounted terminal can interact with the road-side device corresponding to the current location, request corresponding map information from the roadside, and further obtain a map of the current location range. information.
  • the embodiment of the present invention only needs to download the map information in the preset geographic range stored by the roadside device corresponding to the current location, and the amount of data is small. Therefore, compared with the prior art, the storage space required for downloading the complete offline electronic map is solved. Larger problem; in addition, the data exchange between the vehicle and the roadside device can be performed through the short-range communication protocol, and the short-range communication protocol can not use the traffic. Therefore, the embodiment of the present invention can also solve the problem that the non-offline electronic map is limited to the network. Status and traffic tariff issues to quickly and efficiently capture the map information you need.
  • the embodiment of the present invention further provides a method for navigating according to the map information acquired in the foregoing embodiment. Specifically, before the navigation starts, the navigation request is first sent to the roadside device, where the navigation request may include the start address information. And the destination address information to obtain the route information corresponding to the navigation request, and then the target route information may be determined, so that the navigation information may be generated according to the map information requested by the roadside device and the target route information during the driving to realize the navigation .
  • the target route information may first be determined, and the target route information generally includes: Track pattern and corresponding text from location A to location B on the map Description, the trajectory pattern generally includes: a plurality of discrete position points passing through the location A to the location B, and a direction between adjacent location points, but generally does not include map information between adjacent location points, therefore, in addition to the above Map information is also required for navigation outside the trajectory.
  • the vehicle may request map information stored by the roadside device from the roadside device near the current location of the vehicle in the process of traveling eastward along Chengfu Road according to the target route information, after receiving the map information. Then, the trajectory graph of the corresponding range in the target route information can be enriched and improved, and the corresponding map information is added, thereby generating navigation information that can be used for navigation.
  • a flow chart of a first embodiment of a navigation method according to an embodiment of the present invention, which is applied to an in-vehicle terminal, may specifically include:
  • Step 201 Send a navigation request to a roadside device corresponding to the current location, where the in-vehicle terminal communicates with the roadside device by using a short-range communication protocol, where the navigation request includes start address information and destination address information;
  • the user may send a navigation request to the roadside device corresponding to the current location by the vehicle-mounted terminal to obtain the route information, where the navigation request may include the start address information and the destination address information.
  • the starting address information may specifically be the current location information of the vehicle.
  • the current location information may be obtained by using the vehicle terminal, and the method for obtaining includes, but is not limited to, using a GPS (Global Positioning System), BDS (BeiDou). Navigation Satellite System, China Beidou Satellite Navigation System, and Golosas.
  • Step 202 Receive at least one route information from the roadside device that meets the start address information and the destination address information.
  • the process of planning route information may be implemented by using a server.
  • the roadside device may send the received navigation request to the server, and the server plans route information according to the start address information and the destination address information, and The planned at least one route information is sent to the roadside device, and then sent by the roadside device to the vehicle terminal.
  • the route information may specifically include: a trajectory graphic between the start address and the destination address, and a corresponding text description.
  • the route information may be Considering the trajectory graph corresponding to multiple route schemes (such as the shortest time, the shortest distance, and the least cost), but not including the detailed navigation map information, the user can select the appropriate route information as the target route information. It will be appreciated that embodiments of the present invention do not limit the specific manner in which the target route information is determined.
  • Step 203 Determine target route information according to a user selecting operation of the route information.
  • the in-vehicle terminal may display the received at least one kind of route information in the display interface, so that the user can select one of the route information as the target route information.
  • Step 204 Send a map information request to a roadside device corresponding to the current location.
  • Step 205 Receive map information that is requested by the roadside device according to the map information, where the map information is map information in a preset geographic range stored by the roadside device.
  • Step 206 Generate navigation information according to the target route information and the map information.
  • the trajectory graph corresponding to the target route information may be enriched to obtain route information including map data that can be used for navigation.
  • the map information may specifically include the feature information and the road information, and the step of generating the navigation information according to the target route information and the map information acquired by the foregoing method may specifically include:
  • a map can be seen as consisting of three geometric shapes: point, line, and plane.
  • Points refer to feature entities
  • lines are entities such as roads and railways
  • entities such as divisions can be characterized by faces.
  • the process of generating the navigation information is to associate the target route with each point and line entity included in the route, so that the target route information has information such as coordinates and names of the features and roads that can be navigated.
  • the vehicle intends to start from the current location (place A) and arrive at the location B, and first determines the target route information from the location A to the location B, and only knows: Depart from Wudaokou subway station, go east along Chengfu Road, drive 190 meters, turn right into Zhanchunyuan West Road, but you can't know the whole picture of Chengfu Road and Zhanchunyuan West Road during the driving process.
  • Step 207 Display the navigation information.
  • the vehicle-mounted terminal may send a navigation request to the roadside device corresponding to the current location, and receive at least the start address information and the destination address information from the roadside device. a route information, and then determining target route information therefrom, requesting, by the roadside device corresponding to the current location, map information stored by the roadside device during the running of the vehicle, according to the received map information from the roadside device and The target route information generates navigation information and displays the navigation information to implement a navigation function.
  • suitable route information can be obtained in real time according to requirements, and local map information stored by the roadside device is obtained in real time according to the current location through the short-range communication protocol during the running of the vehicle, according to the route information and the map.
  • the information can generate navigation information, thereby realizing the process of dynamically generating navigation information, and solves the problem that the amount of downloaded map data is large and the navigation process consumes traffic compared with the existing navigation navigation technology.
  • the process of obtaining route information in the embodiment of the present invention may also use a short-range communication protocol, and may not use traffic. Therefore, traffic can be saved compared to the existing navigation process.
  • FIG. 3 a flow chart of a method for obtaining the map information in the second embodiment of the present invention is shown in the following steps.
  • Step 301 Receive a map information request from an in-vehicle terminal, where the in-vehicle terminal and the roadside device communicate through a short-range communication protocol;
  • the roadside device when the vehicle travels within the signal coverage of the roadside device, the roadside device may receive a map information request from the in-vehicle terminal.
  • Step 302 Send the stored map information to the in-vehicle terminal; the map information is map information in a preset geographic range stored by the roadside device.
  • the roadside device may only store map information within its own location range, the data of the map information.
  • the amount is very small, and the complete map information of a large amount of data is stored in the server.
  • the data amount of the map information stored in the roadside device can be determined according to requirements, and the embodiment of the present invention does not limit the data amount of the map information stored in the roadside device. system.
  • the roadside device can communicate with the server through a traditional Ethernet access to the Internet or a private network.
  • the server can be used to store route information in addition to map information for storing large amounts of data.
  • the roadside device may be further configured to receive a navigation request from the in-vehicle terminal, and send the navigation request to the server, plan route information corresponding to the navigation request, and send at least one route information from the server.
  • the roadside device can also implement the following steps:
  • the method may further include:
  • the stored map information is updated based on the updated map information.
  • the server may push the updated content to the corresponding roadside device to solve the problem that the offline electronic map is not updated in time, thereby ensuring the roadside device.
  • the accuracy of the map information is not limited to the embodiment of the present invention.
  • FIG. 4 a flowchart of a step of a second embodiment of a navigation method according to an embodiment of the present invention is shown.
  • Step 401 The in-vehicle terminal sends a navigation request to the roadside device corresponding to the current location, where the in-vehicle terminal communicates with the roadside device by using a short-range communication protocol, where the navigation request includes a start address information and a destination address.
  • Information includes a start address information and a destination address.
  • the starting address information is a current location of the vehicle
  • the in-vehicle terminal and the nearby roadside device can be automatically networked by using V2X technology, and the navigation request is sent to the road by V2X technology.
  • Side equipment can be automatically networked by using V2X technology, and the navigation request is sent to the road by V2X technology.
  • Step 402 After receiving the navigation request, the roadside device sends the navigation request to the server.
  • the roadside device can access the Internet or a private network through a conventional Ethernet, and maintain communication with the server. After the roadside device receives the navigation request from the in-vehicle terminal, the navigation request is sent to the server through the Ethernet. In the specific application, when the roadside device sends the navigation request to the server, the navigation request may be added to the navigation request. The identification information and the location information of the roadside device, so that the server can return the corresponding data information to the corresponding roadside device.
  • Step 403 After receiving the navigation request, the server plans route information according to the start address information and the destination address information, and sends at least one route information that meets the start address information and the destination address information to the roadside device.
  • the server stores complete map information. After the server receives the navigation request, the route information may be obtained according to the start address information and the destination address information.
  • Step 404 The roadside device sends, by using the V2X technology, the at least one route information that meets the start address information and the destination address information to the in-vehicle terminal;
  • Step 405 The in-vehicle terminal sends a map information request corresponding to the target route information to the roadside device corresponding to the current location, where the in-vehicle terminal communicates with the roadside device through a short-range communication protocol;
  • the at least one type of route information conforming to the start address information and the destination address information may be displayed by the vehicle-mounted terminal, and the user selects one of the route information as the target route information, and the vehicle-mounted terminal during the running of the vehicle
  • the map information stored by the roadside device is requested from the roadside device corresponding to the current location, and the map information is integrated with the target route information to generate navigation information.
  • Step 406 After receiving the map information request of the vehicle-mounted terminal, the roadside device sends the map information stored by itself to the vehicle-mounted terminal through the V2X technology.
  • Step 407 After acquiring the map information of the corresponding roadside device, the in-vehicle terminal updates the map information required by the target route information.
  • the vehicle-mounted terminal After acquiring the map information of the corresponding roadside device, the vehicle-mounted terminal
  • the target route information is continuously enriched, and as the vehicle continues to travel, the detailed map information required can be updated in real time.
  • Step 408 The server end pushes the updated map information to the corresponding roadside device.
  • the embodiment of the present invention in the navigation process, only the map information stored by the roadside device corresponding to the current location needs to be downloaded, and the amount of data is small. Therefore, compared with the prior art, the storage space required for downloading the complete offline electronic map is solved. A larger problem; in addition, data exchange between the vehicle and the roadside device can be performed through a short-range communication protocol, and the map information can be transmitted without using the mobile network. Therefore, embodiments of the present invention can also solve the problem that the non-offline electronic map is limited to the network. Status and traffic tariff issues to quickly and efficiently capture the map information you need.
  • FIG. 5 it is a structural block diagram of an embodiment of a navigation system according to an embodiment of the present invention, which may specifically include: an in-vehicle terminal 510 and a roadside device 520;
  • the in-vehicle terminal 510 and the roadside device 520 can be automatically networked by the V2X technology, and communication between the in-vehicle terminal 510 and the roadside device 520 is realized by the V2X technology.
  • the vehicle-mounted terminal 510 is mounted on the vehicle and is a terminal part of the navigation system, and can be used to initiate a navigation request, display map information, and receive map information in real time.
  • the vehicle terminal 510 may specifically include:
  • the map information requesting module 511 is configured to send, to the roadside device corresponding to the current location, a map information request corresponding to the target route information, where the in-vehicle terminal communicates with the roadside device through a short-range communication protocol;
  • the map information receiving module 512 is configured to receive map information that is requested by the roadside device according to the map information; the map information is map information in a preset geographic range stored by the roadside device;
  • the roadside device 520 is deployed beside the road and can be used to communicate with the vehicle terminal and the server.
  • the roadside device 520 may specifically include:
  • a map request receiving module 521 configured to receive a map information request corresponding to the target route information from the in-vehicle terminal; wherein the in-vehicle terminal communicates with the roadside device through a short-range communication protocol;
  • a map information sending module 522 configured to send the stored map information to the vehicle-mounted terminal;
  • the map information is map information within a preset geographic range stored by the roadside device.
  • system may further include: a server 530;
  • the roadside device 520 can communicate with the server 530 by accessing the Internet or a private network through a conventional Ethernet.
  • the server 530 is a background processing part of the navigation system, and can be used to process navigation requests, plan and send route information, update and push the latest map information, and the like.
  • the server 530 may specifically include:
  • a second navigation request receiving module 531 configured to receive a navigation request from a roadside device, where the navigation request includes start address information and destination address information;
  • the route information planning module 532 is configured to plan route information according to the map information stored by the server, and the start address information and the destination address information;
  • the second route information sending module 533 is configured to send, to the roadside device, at least one route information that meets the start address information and the destination address information;
  • the in-vehicle terminal 510 may further include:
  • the first navigation request sending module 513 is configured to send a navigation request to the roadside device corresponding to the current location, where the in-vehicle terminal communicates with the roadside device by using a short-range communication protocol, where the navigation request includes a start Address information and destination address information;
  • the first route information receiving module 514 is configured to receive at least one route information from the roadside device that meets the start address information and the destination address information;
  • the target route information determining module 515 is configured to use one of the at least one route information as the target route information;
  • the navigation information generating module 516 is configured to generate navigation information according to the target route information and the map information;
  • the navigation information display module 517 is configured to display the navigation information.
  • the in-vehicle terminal may further include:
  • the integration module 518 is configured to perform integration processing on the map information from the plurality of roadside devices that are sequentially received.
  • the roadside device 520 may further include:
  • a first navigation request receiving module 523 configured to receive a navigation request from the in-vehicle terminal;
  • the navigation request includes start address information and destination address information;
  • a second navigation request sending module 524 configured to send the navigation request to a server
  • the second route information receiving module 525 is configured to receive at least one route information from the server that meets the start address information and the destination address information;
  • the first route information sending module 526 is configured to send the at least one route information that meets the start address information and the destination address information to the in-vehicle terminal.
  • the server may further include: an update push module 534;
  • the update push module 534 is configured to: after the map information stored by the server is updated, push the updated map information to the corresponding roadside device;
  • the roadside device 520 may further include:
  • An update receiving module 527 configured to receive updated map information pushed from the server
  • the map update module 528 is configured to update the stored map information according to the updated map information.
  • the vehicle-mounted terminal can interact with the road-side device corresponding to the current location through the V2X technology, requesting to acquire the map information stored by the roadside device, and further obtain the map information of the range of the current location.
  • the embodiment of the present invention only needs to download the map information stored by the roadside device corresponding to the current location, and the amount of data is small. Therefore, compared with the prior art, the problem that a large offline storage electronic map needs to be downloaded requires a large storage space.
  • the data exchange between the vehicle and the roadside device can be performed through the short-range communication protocol, and the mobile network can be omitted. Therefore, the embodiment of the present invention can also solve the problem that the non-offline electronic map is limited by the network state and the traffic tariff, thereby being fast. Effectively obtain the required map information.
  • the navigation system may include: an in-vehicle terminal, a roadside device, and a server.
  • FIG. 6 a structural block diagram of an application example of an in-vehicle terminal according to an embodiment of the present invention is shown, which may specifically include:
  • the power supply module 610 is configured to supply power to other modules, including but not limited to a battery and a vehicle power supply. Wait;
  • the positioning module 620 is configured to obtain current location information, including but not limited to GPS, Beidou, Golosas, etc., after obtaining the current location information, transmitting the current location information to the processing module;
  • the interface module 630 is configured to input a navigation request and display route information and map information
  • the user can input a navigation request on the graphical interface, such as inputting a destination address, and the interface module passes the navigation request to the processing module.
  • the processing module 640 is configured to integrate each module and process data.
  • the processing module may send the information to the wireless module after acquiring the current location information transmitted by the positioning module and the destination address transmitted by the display module; the processing module as the receiving end may be wirelessly The module acquires route information or map information sent by the roadside device.
  • the wireless module 650 is configured to communicate with the roadside device through the V2X technology.
  • FIG. 7 a structural block diagram of an application example of a roadside device according to an embodiment of the present invention is shown, which may specifically include:
  • the power supply module 710 is configured to supply power to other modules, including but not limited to a battery, a vehicle power supply, and the like;
  • the main module 720 is configured to store location information of the roadside device, map information of the range of the location information, and the like, and process and forward the related data. Specifically, the main module can communicate with the vehicle terminal through the wireless module, for example, The wireless network receives the navigation request from the in-vehicle terminal and transmits the map information to the in-vehicle terminal, and the main module can also communicate with the server through the wired module, for example, receiving route information and map information from the server via Ethernet.
  • FIG. 8 is a structural block diagram of Embodiment 1 of an in-vehicle terminal according to an embodiment of the present invention, which may specifically include:
  • the map information requesting module 810 is configured to send a map information request to the roadside device corresponding to the current location; wherein the in-vehicle terminal communicates with the roadside device through a short-range communication protocol; and
  • the map information receiving module 820 is configured to receive map information that is requested by the roadside device according to the map information, where the map information is a location within a preset geographic range stored by the roadside device. Figure information.
  • the in-vehicle terminal may further include:
  • the integration module is configured to integrate the map information received from the plurality of roadside devices in sequence.
  • the in-vehicle terminal may further include:
  • a first link establishing module configured to establish a microwave communication link with the roadside device according to the short-range communication protocol
  • the map information requesting module may specifically include:
  • a map information requesting sub-module configured to send, according to the microwave communication link, a map information request to a roadside device corresponding to the current location;
  • the map information receiving module may specifically include:
  • the map information receiving submodule is configured to receive, according to the microwave communication link, map information that is requested by the roadside device according to the map information.
  • FIG. 9 a structural block diagram of an embodiment of a roadside device according to an embodiment of the present invention is shown, which may specifically include:
  • a map request receiving module 910 configured to receive a map information request corresponding to the target route information from the in-vehicle terminal; wherein the in-vehicle terminal communicates with the roadside device through a short-range communication protocol;
  • the map information sending module 920 is configured to send the stored map information to the in-vehicle terminal; the map information is map information in a preset geographic range stored by the roadside device.
  • the roadside device may further include:
  • An update receiving module configured to receive updated map information pushed from the server
  • the map update module is configured to update the stored map information according to the updated map information.
  • the roadside device may further include:
  • a second link establishing module configured to establish a microwave communication link with the vehicle-mounted terminal according to the short-range communication protocol
  • the map request receiving module may specifically include:
  • a map request receiving submodule configured to receive a map information request from the in-vehicle terminal according to the microwave communication link
  • the map information sending module may specifically include:
  • a map information sending submodule configured to send the stored map information to the in-vehicle terminal according to the microwave communication link.
  • FIG. 10 it is a structural block diagram of a second embodiment of an in-vehicle terminal according to an embodiment of the present invention, which may specifically include:
  • the navigation request sending module 1001 is configured to send a navigation request to the roadside device corresponding to the current location; wherein the in-vehicle terminal communicates with the roadside device by using a short-range communication protocol, where the navigation request includes start address information And destination address information;
  • the route information receiving module 1002 is configured to receive at least one route information from the roadside device that meets the start address information and the destination address information;
  • the target route determining module 1003 is configured to determine target route information according to a user selecting operation of the route information
  • the map information requesting module 1004 is configured to send a map information request to the roadside device corresponding to the current location; wherein the in-vehicle terminal communicates with the roadside device through a short-range communication protocol; and
  • the map information receiving module 1005 is configured to receive map information that the roadside device requests to return according to the map information; the map information is map information in a preset geographic range stored by the roadside device;
  • the navigation information generating module 1006 is configured to generate navigation information according to the target route information and the map information.
  • the navigation information display module 1007 is configured to display the navigation information.
  • the map information may include feature information and road information
  • the navigation information generating module 1006 may specifically include:
  • An information determining submodule configured to determine feature information and road information corresponding to the target route information according to the map information
  • the navigation generation submodule is configured to generate navigation information corresponding to the target route information according to the feature information and the road information.
  • the in-vehicle terminal may include a processor 1101 and a memory 1102. a communication interface (Communications Interface) 1103 and a bus 1104;
  • the processor 1101, the memory 1102, and the communication interface 1103 complete communication with each other through the bus 1104;
  • the communication interface 1103 can be used for information transmission between the vehicle-mounted terminal and the roadside device;
  • the processor 1101 can invoke logic instructions in the memory to perform the following methods:
  • the roadside device And receiving, by the roadside device, the map information returned according to the map information; wherein the map information is map information in a preset geographic range stored by the roadside device.
  • the roadside device may include: a processor 1201 and a memory. 1202, a communication interface (Communications Interface) 1203 and a bus 1204; wherein
  • the processor 1201, the memory 1202, and the communication interface 1203 complete communication with each other through the bus 1204;
  • the communication interface 1203 can be used for information transmission between the roadside device and the vehicle terminal;
  • the processor 1201 can invoke the logic instructions in the memory 1202 to perform the following methods:
  • map information is map information in a preset geographic range stored by the roadside device.
  • the in-vehicle terminal may include: a processor 1301, a memory 1302, a communication interface 1303, and a bus 1304;
  • the processor 1301, the memory 1302, and the communication interface 1303 complete communication with each other through the bus 1304;
  • the communication interface 1303 can be used for information transmission between the vehicle-mounted terminal and the roadside device;
  • the processor 1301 can invoke logic instructions in the memory to perform the following methods:
  • the map information is map information in a preset geographic range stored by the roadside device;
  • the navigation information is displayed.
  • the embodiment discloses a computer program, including program code, where the program code is used to perform the following operations:
  • the roadside device And receiving, by the roadside device, the map information returned according to the map information; wherein the map information is map information in a preset geographic range stored by the roadside device.
  • This embodiment discloses a storage medium for storing the meter according to the foregoing program embodiment 1.
  • Computer program
  • the embodiment discloses a computer program, including program code, where the program code is used to perform the following operations:
  • map information is map information in a preset geographic range stored by the roadside device.
  • the embodiment discloses a storage medium for storing the computer program as described in the foregoing program embodiment 2.
  • the embodiment discloses a computer program, including program code, where the program code is used to perform the following operations:
  • the map information is map information in a preset geographic range stored by the roadside device;
  • the navigation information is displayed.
  • the computer programs involved in the foregoing first to third embodiments of the present invention can be written in a plurality of programming languages, such as C language, C++, Python, etc., which are not limited by the embodiments of the present invention.
  • This embodiment discloses a storage medium for storing a computer program according to the foregoing third embodiment of the program.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

一种获取地图信息的方法、导航方法及设备,其中获取地图信息的方法具体包括:向当前位置对应的路侧设备发送地图信息请求;其中,车载终端与路侧设备之间通过短程通信协议通信(101);接收路侧设备依据地图信息请求返回的地图信息;其中,地图信息为路侧设备存储的预置地理范围内的地图信息(102)。该获取地图信息的方法、导航方法及设备不仅可以节省车载终端的存储空间,并且,能够节省车载终端的流量资费。

Description

获取地图信息的方法、导航方法及设备
交叉引用
本申请引用于2015年10月29日提交的专利名称为“获取地图信息的方法、导航方法及设备”的第2015107177647号中国专利申请,其通过引用被全部并入本申请。
技术领域
本发明的实施例涉及通信技术,尤其涉及一种获取地图信息的方法、导航方法及设备。
背景技术
随着电子信息技术的不断发展,电子地图逐渐取代了纸质地图,为人们的出行带来便利。例如,行车导航技术可以通过车载导航仪、车机或者其他设备搭载电子导航系统,根据电子地图对行车路线进行实时导航。
现有的行车导航技术可以使用离线电子地图或实时电子地图进行导航。其中,使用离线电子地图进行导航的技术,需要在行车导航前提前下载大数据量的地图信息包,该地图信息包的大小通常可以达到上百兆或者上千兆字节,而且在地图信息有变化的时候,需要提前对地图信息包进行更新。使用实时电子地图的技术,需要在行车导航过程中实时下载所需要的地图信息,但是需要消耗较多的移动流量,而且容易受到网络信号以及网络速度的影响。
因此,使用离线电子地图存在需要较大的存储空间和更新不及时的问题,而使用实时电子地图存在耗费流量和受限于网络状态的问题。
发明内容
本发明实施例提供一种获取地图信息的方法、导航方法及设备,用以解决离线电子地图存储量大、更新不及时以及实时电子地图耗费流量、受限于网络状态的缺陷,实现实时更新局部地图,且不受网络状态和流量限制的地图信息获取方法。
本发明实施例提供一种获取地图信息的方法,应用于车载终端,包括:
向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
依据本发明的实施例的另一个方面,提供一种获取地图信息的方法,应用于路侧设备,包括:
接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
向所述车载终端发送存储的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
依据本发明的实施例的又一个方面,提供一种导航方法,应用于车载终端,包括:
向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
依据用户对于所述路线信息的选择操作,确定目标路线信息;
向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
依据所述目标路线信息和所述地图信息,生成导航信息;
显示所述导航信息。
依据本发明的实施例的再一个方面,提供一种车载终端,包括:
地图信息请求模块,用于向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;及
地图信息接收模块,用于接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
依据本发明的实施例的再一个方面,提供一种路侧设备,包括:
地图请求接收模块,用于接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;及
地图信息发送模块,用于向所述车载终端发送存储的地图信息;所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
依据本发明的实施例的再一个方面,提供一种车载终端,包括:
导航请求发送模块,用于向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
路线信息接收模块,用于接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
目标路线确定模块,用于依据用户对于所述路线信息的选择操作,确定目标路线信息;
地图信息请求模块,用于向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;及
地图信息接收模块,用于接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
导航信息生成模块,用于依据所述目标路线信息和所述地图信息,生成导航信息;及
导航信息显示模块,用于显示所述导航信息。
依据本发明的实施例的再一个方面,提供一种车载终端,包括:
处理器、存储器、通信接口和总线;其中,
所述处理器、存储器、通信接口通过所述总线完成相互间的通信;
所述通信接口用于该车载终端与路侧设备之间的信息传输;
所述处理器用于调用所述存储器中的逻辑指令,以执行如下方法:
向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
依据本发明的实施例的再一个方面,提供一种计算机程序,包括程序代码,所述程序代码用于执行如下操作:
向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
依据本发明的实施例的再一个方面,提供一种存储介质,用于存储如前所述的计算机程序。
依据本发明的实施例的再一个方面,提供一种路侧设备,包括:
处理器、存储器、通信接口和总线;其中,
所述处理器、存储器、通信接口通过所述总线完成相互间的通信;
所述通信接口用于该路侧设备与车载终端之间的信息传输;
所述处理器用于调用所述存储器中的逻辑指令,以执行如下方法:
接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
向所述车载终端发送存储的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
依据本发明的实施例的再一个方面,提供一种计算机程序,包括程序代码,所述程序代码用于执行如下操作:
接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
向所述车载终端发送存储的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
依据本发明的实施例的再一个方面,提供一种存储介质,用于存储如前所述的计算机程序。
依据本发明的实施例的再一个方面,提供一种车载终端,包括:
处理器、存储器、通信接口和总线;其中,
所述处理器、存储器、通信接口通过所述总线完成相互间的通信;
所述通信接口用于该车载终端与路侧设备之间的信息传输;
所述处理器用于调用所述存储器中的逻辑指令,以执行如下方法:
向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
依据用户对于所述路线信息的选择操作,确定目标路线信息;
向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
依据所述目标路线信息和所述地图信息,生成导航信息;
显示所述导航信息。
依据本发明的实施例的再一个方面,提供一种计算机程序,包括程序代码,所述程序代码用于执行如下操作:
向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
依据用户对于所述路线信息的选择操作,确定目标路线信息;
向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
依据所述目标路线信息和所述地图信息,生成导航信息;
显示所述导航信息。
依据本发明的实施例的再一个方面,提供一种存储介质,用于存储如前所述的计算机程序。
本发明实施例提供一种获取地图信息的方法、导航方法及设备,在本发明实施例中,车载终端可以与当前位置对应的路侧设备进行交互,请求获取所述路侧设备存储的地图信息,进而可以得到当前位置所在范围的地图信息。由于本发明实施例只需要下载当前位置对应的路侧设备所存储的预置地理范围内的地图信息,数据量较小,因此,相对于现有技术,解决了需要下载完整离线电子地图需要存储空间较大的问题,节省了车载终端的存储空间;此外,车辆与路侧设备之间可以通过短程通信协议进行数据交互,而短程通信协议可以不使用流量,因此,本发明的实施例还可以解决非离线电子地图受限于网络状态和流量资费的问题,节省了车载终端的流量资费,从而快速有效地获取所需要的地图信息。
附图说明
图1为本发明的实施例的一种获取地图信息的方法实施例一的步骤流程图;
图2为本发明的实施例的一种导航方法实施例一的步骤流程图;
图3为本发明的实施例的一种获取地图信息的方法实施例二的步骤流程图;
图4为本发明的实施例的一种导航方法实施例二的步骤流程图;
图5为本发明的实施例的一种导航系统实施例的结构框图;
图6为本发明的实施例的一种车载终端应用示例的结构框图;
图7为本发明的实施例的一种路侧设备应用示例的结构框图;
图8本发明的实施例的一种车载终端实施例一的结构框图;
图9为本发明的实施例的一种路侧设备实施例一的结构框图;
图10为本发明的实施例的一种车载终端实施例二的结构框图;
图11为本发明的实施例的一种车载终端实施例三的实体结构示意图;
图12为本发明的实施例的一种路侧设备实施例二的实体结构示意图;
图13为本发明的实施例的一种车载终端实施例四的实体结构示意图。
具体实施方式
实施例一
参照图1,示出了本发明的实施例的一种获取地图信息的方法实施例一的步骤流程图,应用于车载终端,具体可以包括:
步骤101、向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
本发明实施例可应用于在行车导航过程中获取地图信息,为了解决现有技术需要下载完整地图信息导致所需存储空间较大或者耗费流量的问题,本发明实施例可以在路侧设备中存储预置地理范围内的地图信息,其中,上述预置地理范围可以包括:该路侧设备所在位置对应的地理区域,或者,该路侧设备的信号覆盖范围所对应的地理区域。进一步,该路侧设备所在位置对应的地理区域可以为覆盖该路侧设备所在位置的、具有预置尺寸的地理位置;例如,该路侧设备所在位置对应的地理范围可以为:该路侧设备所在位置为圆心、第一距离阈值为半径的圆形区域,又如,该路侧设备所在位置对应的地理范围还可以为:以该路侧设备所在位置为基准、向东、南、西、北等方向延伸第二距离阈值的地理区域。本发明实施例对于具体的第一距离阈值、第二距离阈值和具体的预置地理范围不加以限制。
由于每个路侧设备只需存储预置地理范围内的地图信息,因此,地图信息的数据量比较小,相对于现有技术,可以使得车载终端以预置地理范围为粒度获取对应的地图信息,因此可以减少车载终端所需的存储空间以及下载地图所需的流量。例如以该路侧设备为圆心,2公里为半径范围内的地图信息,当车辆行驶到某个路侧设备的信号覆盖范围内时,可以由车载终端通过V2X(Vehicle to X,车对外界的信息交换)技术与该路侧设备进行通信以获取路侧设备所存储的地图信息,当车辆行驶到下一个路侧设备的信号覆盖范围内时,再向下一个路侧设备请求其存储的地图信息,从而可以在行驶过程中,动态获取所需要的地图信息。
其中,V2X是智能交通运输系统的关键技术,它使得车与车、车与基站之间能够通信,从而可以获得实时路况、道路信息、行人信息等一系列交通信息。
在本发明的实施例的一种优选实施例中,V2X技术可以为:车载终端利用DSRC(Dedicated Short Range Communication,短程通信协议),与路侧设备之间建立微波通信链路,在车辆行驶过程中,根据建立的微波通信链路,和路侧设备通过微波进行通信,以接收所述路侧设备依据所述地图信息请求返回的地图信息,由于车载终端可以利用短程通信协议向路侧设备请求地图信息,而短程通信协议可以不使用流量,因此,相对于现有技术,可以大大降低流量费用。
步骤102、接收所述路侧设备依据所述地图信息请求返回的地图信息;所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
在本发明实施例中,车辆在行驶过程中,可以通过车载终端动态请求接收路侧设备中存储的地图信息,该地图信息可以为预置地理范围内的地图信息。例如,在本发明的实施例的一种应用示例中,某用户需要从五道口地铁站驾车到国贸地铁站,则在行驶过程中,可以动态地下载从五道口地铁站到国贸地铁站这段路程对应的局部地图信息,而不用一次性地将整个北京市的地图信息下载下来,由于相对于整个北京市的地图信息,五道口地铁站到国贸地铁站这段路程对应的局部地图信息仅仅是整个北京市的地图信息的一部分,数据量较小,因此可以减小车载终端下载地图信息所需的存储空间。
在具体应用中,车载终端接收到来自所述路侧设备的地图信息之后,还可以将该地图信息存储在车载终端本地,这样,当下次再经过当前位置时,车载终端可以不向路侧设备请求对应的地图信息,以节省下载地图信息的时间。
在本发明的实施例的一种优选实施例中,所述方法还可以包括:对依次接收到的来自多个路侧设备的地图信息进行整合处理。具体地,在车辆行驶过程中,根据车辆的行进,车载终端会依次接收到来自多个路侧设备的地图信息,由于在实际应用中,两个路侧设备存储的地图信息可能包括重复的信息,因此,车载终端还可以将接收到的多个路侧设备的地图信息中的重复信息进行去重处理和整合处理,可以得到连续的地图信息。
例如,车辆在从五道口行驶到北航北门的过程中,车载终端依次接收到来自五道口、展春园、北航北门等3个路侧设备的地图信息,其中,五道口路侧设备的地图信息中包括从五道口出发沿成府路向东至展春园西路这一段路的地图信息,展春园路侧设备的地图信息中包括沿展春园西路向南至北四环中路辅路这一段路的地图信息,北航北门路侧设备的地图信息中包括沿北四环中路辅路向东至北航北门这一段路的地图信息,则可以将该3个路侧设备的地图信息进行整合处理,以得到从五道口到北航北门这一段路线的连续地图信息。由于相邻路侧设备存储的预置地理范围可能存在交叉、从而导致相邻路测设备的地图信息之间存在重复的信息,例如,五道口路侧设备和展春园路侧设备中都存储有展春园西路的某一段路的地图信息,因此,在对这两个路侧设备的地图信息进行整合时,可以去掉其中重复的地图信息,以避免冗余数据的存储,节省存储空间。
综上,在本发明实施例中,车辆在行驶过程中,车载终端可以与当前位置对应的路侧设备进行交互,向所述路侧请求对应的地图信息,进而可以得到当前位置所在范围的地图信息。由于本发明实施例只需要下载当前位置对应的路侧设备存储的预置地理范围内的地图信息,数据量较小,因此,相对于现有技术,解决了需要下载完整离线电子地图需要存储空间较大的问题;此外,车辆与路侧设备之间可以通过短程通信协议进行数据交互,而短程通信协议可以不使用流量,因此,本发明的实施例还可以解决非离线电子地图受限于网络状态和流量资费的问题,从而快速有效地获取所需要的地图信息。
实施例二
本发明实施例还提供了一种根据上述实施例一获取的地图信息进行导航的方法,具体地,在导航开始前,首先向路侧设备发送导航请求,该导航请求中可以包括起始地址信息和目的地址信息,以获取该导航请求对应的路线信息,然后可以确定目标路线信息,从而可以在行驶过程中根据向路侧设备请求的地图信息和该目标路线信息生成导航信息,以实现行车导航。
在本发明的实施例的一种应用示例中,假设车辆打算从当前位置(地点A)出发,到达地点B,由于不知道该如何行驶,首先可以确定目标路线信息,该目标路线信息通常包括:地图上地点A到地点B的轨迹图形及对应的文字 描述,该轨迹图形通常包括:地点A到地点B所经过的若干个离散位置点、以及相邻位置点之间的方向,但通常不包括相邻位置点之间的地图信息,因此,除了上述轨迹图形外导航还需要地图信息。例如,对于上述应用示例,根据该轨迹图形,仅仅可以得知:从五道口地铁站出发,沿成府路向东,行驶190米,右转进入展春园西路,但无法得知行驶过程中成府路和展春园西路的全貌。
在上述应用示例中,车辆根据目标路线信息沿成府路向东行驶的过程中,可以向该车辆当前所在位置附近的路侧设备请求该路侧设备存储的地图信息,在接收到该地图信息后,即可将目标路线信息中对应范围的轨迹图形进行充实完善,添加上对应的地图信息,从而生成可用于导航的导航信息。
参照图2,示出了本发明的实施例的一种导航方法实施例一的步骤流程图,应用于车载终端,具体可以包括:
步骤201、向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
在本发明实施例中,在导航开始前,用户可以通过车载终端向当前位置对应的路侧设备发送导航请求,以获取路线信息,所述导航请求中可以包括起始地址信息和目的地址信息,其中,起始地址信息具体可以为车辆当前位置信息,在具体应用中,可以通过车载终端获取当前位置信息,获取的方法包括但不限于利用GPS(Global Positioning System,全球定位系统)、BDS(BeiDou Navigation Satellite System,中国北斗卫星导航系统)、以及戈洛萨斯等方法。
步骤202、接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
在本发明实施例中,可以利用服务器实现规划路线信息的过程,具体地,路侧设备可以将接收到的导航请求发送至服务器,由服务器根据起始地址信息和目的地址信息规划路线信息,并且将规划得到的至少一种路线信息发送至路侧设备,再由路侧设备发送至车载终端。
该路线信息具体可以包括:起始地址和目的地址之间的轨迹图形、及对应的文字描述,为了可以向用户提供更多更灵活的导航选择,该路线信息可 以为多种路线方案(例如时间最短、距离最短、费用最少等多种可选方案)对应的轨迹图形,但不包括详细导航地图信息,用户可以从中选取合适的路线信息作为目标路线信息。可以理解,本发明的实施例对于确定目标路线信息的具体方式不加以限制。
步骤203、依据用户对于所述路线信息的选择操作,确定目标路线信息;
在具体应用中,车载终端可以将接收到的至少一种路线信息在显示界面中进行显示,以供用户可以从中选择一种作为目标路线信息。
步骤204、向当前位置对应的路侧设备发送地图信息请求;
步骤205、接收所述路侧设备依据所述地图信息请求返回的地图信息;所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
步骤206、依据所述目标路线信息和所述地图信息,生成导航信息;
在具体应用中,根据地图信息,可以对目标路线信息对应的轨迹图形进行充实,以得到可用于导航的包括地图数据的路线信息。
其中,所述地图信息中具体可以包括地物信息和道路信息,所述依据所述目标路线信息和前述的方法获取的地图信息,生成导航信息的步骤,具体可以包括:
根据所述地图信息,确定与所述目标路线信息对应的地物信息和道路信息;
根据所述地物信息和道路信息生成所述目标路线信息对应的导航信息。
在实际应用中,一副地图可以看成是由点、线、面三种几何图形构成的。点指的是地物实体,线则是道路、铁路之类的实体,而区划这类的实体就可以用面来表征。生成导航信息的过程,就是将所述目标路线与该路线中所包括的各点、线实体进行对应,以使得该目标路线信息具有可以导航的地物和道路的坐标、名称等信息。例如,在本发明的实施例的上述应用示例中,假设车辆打算从当前位置(地点A)出发,到达地点B,首先确定了从地点A到地点B的目标路线信息,仅仅可以得知:从五道口地铁站出发,沿成府路向东,行驶190米,右转进入展春园西路,但无法得知行驶过程中成府路和展春园西路的全貌。在获取到展春园西路以及成府路对应路侧设备的地图信息后,即可将该地图信息中展春园西路以及成府路对应的地物信息和道路信息添加到该目标路线信息中,也即可以对地图信息和目标路线信息进行融合, 以得到可用于导航的导航信息。
步骤207、显示所述导航信息。
在本发明实施例中,在行车导航开始之前,车载终端可以向当前位置对应的路侧设备发送导航请求,以及接收来自所述路侧设备的符合所述起始地址信息和目的地址信息的至少一种路线信息,然后,从中确定目标路线信息,在车辆行驶过程中,向当前位置对应的路侧设备请求所述路侧设备存储的地图信息,根据接收到的来自路侧设备的地图信息和目标路线信息生成导航信息,并且将该导航信息进行显示以实现导航功能。
通过本发明实施例,可以根据需要实时获取适合的路线信息,以及在车辆行驶过程中,通过短程通信协议,根据当前所在位置实时获取路侧设备存储的局部地图信息,根据所述路线信息和地图信息可以生成导航信息,从而实现动态生成导航信息的过程,相对于现有的行车导航技术,解决了下载地图数据量大以及导航过程耗费流量的问题。此外,本发明实施例获取路线信息的过程也可以通过短程通信协议,可以不使用流量,因此,相对于现有的行车导航过程,可以节省流量。
实施例三
参照图3,示出了本发明的实施例的一种获取地图信息的方法实施例二的步骤流程图,应用于路侧设备,具体可以包括:
步骤301、接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
在本发明实施例中,当车辆行驶到路侧设备的信号覆盖范围内时,该路侧设备可以接收到来自车载终端的地图信息请求。
步骤302、向所述车载终端发送存储的地图信息;所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
本发明实施例为了减小路侧设备的存储负担,以及车载终端与路侧设备之间的数据传输量,可以在路侧设备中只存储其自身位置范围内的地图信息,该地图信息的数据量非常小,而将大数据量的完整地图信息存储在服务器中。可以理解,在实际应用中,可以根据需要确定路侧设备中存储的地图信息的数据量,本发明的实施例对于路侧设备中存储的地图信息的数据量不加以限 制。在具体应用中,路侧设备可以通过传统以太网接入互联网或者专用网,与服务器进行通信,所述服务器除了可用于存储大数据量的地图信息外,还可用于规划路线信息。
在具体应用中,路侧设备还可以用于接收来自车载终端的导航请求,以及将导航请求发送至服务器,通过服务器规划该导航请求对应的路线信息,并且将来自服务器的至少一种路线信息发送至车载终端,具体地,路侧设备还可以实现如下步骤:
接收来自车载终端的导航请求;其中,所述导航请求中包括起始地址信息和目的地址信息;
向服务器发送所述导航请求;
接收来自服务器的符合所述起始地址信息和目的地址信息的至少一种路线信息;
向车载终端发送所述符合所述起始地址信息和目的地址信息的至少一种路线信息。
为了保证路侧设备中地图信息的准确性,在本发明的实施例的另一种优选实施例中,所述方法还可以包括:
接收来自服务器推送的更新后的地图信息;
根据所述更新后的地图信息,对存储的地图信息进行更新。
在本发明实施例中,当服务器中的地图信息有所更新后,服务器可以将有更新的内容推送至对应的路侧设备,以解决离线电子地图更新不及时的问题,从而保证路侧设备中地图信息的准确性。
实施例四
为了更清楚地描述本发明的实施例的导航方法,本实施例结合具体应用示例对本发明的实施例导航方法进行详细说明。
参照图4,示出了本发明的实施例的一种导航方法实施例二的步骤流程图,具体可以包括:
步骤401、车载终端向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
在本发明的实施例的一种应用示例中,所述起始地址信息为车辆当前位置,车载终端与其附近的路侧设备可以通过V2X技术自动组网,并且通过V2X技术将导航请求发送至路侧设备。
步骤402、路侧设备接收到所述导航请求之后,向服务器发送所述导航请求;
具体地,路侧设备可以通过传统以太网接入互联网或者专用网,和服务器保持通信。在路侧设备接收到来自车载终端的导航请求后,通过以太网向服务器发送所述导航请求,在具体应用中,路侧设备向服务器发送该导航请求时,还可以在该导航请求中添加该路侧设备的标识信息和位置信息,以使服务器可以向对应的路侧设备返回对应的数据信息。
步骤403、服务器在接收到所述导航请求后,根据起始地址信息和目的地址信息规划路线信息,以及向路侧设备发送至少一种符合所述起始地址信息和目的地址信息的路线信息;
在本发明实施例中,服务器中存储着完整的地图信息,在服务器接收到导航请求以后,可以根据起始地址信息和目的地址信息规划得到路线信息。
步骤404、路侧设备通过V2X技术,向车载终端发送所述至少一种符合所述起始地址信息和目的地址信息的路线信息;
步骤405、车载终端向当前位置对应的路侧设备发送目标路线信息对应的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
在本发明实施例中,可以通过车载终端显示所述至少一种符合所述起始地址信息和目的地址信息的路线信息,用户从中选择一种作为目标路线信息,在车辆行驶过程中,车载终端向当前位置对应的路侧设备请求所述路侧设备存储的地图信息,并且将该地图信息与目标路线信息进行综合输出,从而生成导航信息。
步骤406、路侧设备在接收到车载终端的地图信息请求后,通过V2X技术,向车载终端发送自身存储的地图信息;
步骤407、车载终端在获取对应路侧设备的地图信息之后,更新所述目标路线信息所需的地图信息;
在本发明实施例中,车载终端在获取对应路侧设备的地图信息之后,对 目标路线信息进行不断充实,随着车辆的不断行进,可以实时更新所需要的详细地图信息。
步骤408、服务器端向对应的路侧设备推送更新后的地图信息。
通过本发明实施例,在导航过程中,只需要下载当前位置对应的路侧设备存储的地图信息,数据量较小,因此,相对于现有技术,解决了需要下载完整离线电子地图需要存储空间较大的问题;此外,车辆与路侧设备之间可以通过短程通信协议进行数据交互,可以不使用移动网络传输地图信息,因此,本发明的实施例还可以解决非离线电子地图受限于网络状态和流量资费的问题,从而快速有效地获取所需要的地图信息。
实施例五
参照图5,示出了本发明的实施例的一种导航系统实施例的结构框图,具体可以包括:车载终端510和路侧设备520;
所述车载终端510和路侧设备520可以通过V2X技术自动组网,并且通过V2X技术实现车载终端510和路侧设备520之间的通信。
其中,所述车载终端510搭载在车辆上,是导航系统的终端部分,可用于发起导航请求,显示地图信息,实时接收地图信息等。所述车载终端510,具体可以包括:
地图信息请求模块511,用于向当前位置对应的路侧设备发送目标路线信息对应的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
地图信息接收模块512,用于接收所述路侧设备依据所述地图信息请求返回的地图信息;所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
所述路侧设备520部署在道路旁边,可用于和车载终端以及服务器进行通信。所述路侧设备520,具体可以包括:
地图请求接收模块521,用于接收来自车载终端的目标路线信息对应的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
地图信息发送模块522,用于向所述车载终端发送存储的地图信息;所 述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
在本发明的实施例的一种优选实施例中,所述系统还可以包括:服务器530;
所述路侧设备520可以通过传统以太网接入互联网或者专用网,和服务器530进行通信。
所述服务器530,是导航系统的后台处理部分,可用于处理导航请求,规划并发送路线信息,更新并推送最新地图信息等。所述服务器530,具体可以包括:
第二导航请求接收模块531,用于接收来自路侧设备的导航请求;其中,所述导航请求中包括起始地址信息和目的地址信息;
路线信息规划模块532,用于根据服务器存储的地图信息,以及起始地址信息和目的地址信息,规划路线信息;
第二路线信息发送模块533,用于向路侧设备发送符合所述起始地址信息和目的地址信息的至少一种路线信息;
所述车载终端510,还可以包括:
第一导航请求发送模块513,用于向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
第一路线信息接收模块514,用于接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
目标路线信息确定模块515,用于将所述至少一种路线信息中的一种作为目标路线信息;
导航信息生成模块516,用于依据所述目标路线信息和所述地图信息,生成导航信息;
导航信息显示模块517,用于显示所述导航信息。
在本发明的实施例的一种优选实施例中,所述车载终端还可以包括:
整合模块518,用于对依次接收到的来自多个路侧设备的地图信息进行整合处理。
所述路侧设备520,还可以包括:
第一导航请求接收模块523,用于接收来自车载终端的导航请求;其中, 所述导航请求中包括起始地址信息和目的地址信息;
第二导航请求发送模块524,用于向服务器发送所述导航请求;
第二路线信息接收模块525,用于接收来自服务器的符合所述起始地址信息和目的地址信息的至少一种路线信息;
第一路线信息发送模块526,用于向车载终端发送所述符合所述起始地址信息和目的地址信息的至少一种路线信息。
在本发明的实施例的另一种优选实施例中,所述服务器还可以包括:更新推送模块534;
所述更新推送模块534,用于在服务器存储的地图信息更新后,将更新后的地图信息推送至相应的路侧设备;
所述路侧设备520,还可以包括:
更新接收模块527,用于接收来自服务器推送的更新后的地图信息;
地图更新模块528,用于根据所述更新后的地图信息,对存储的地图信息进行更新。
在本发明实施例中,车载终端可以通过V2X技术,与当前位置对应的路侧设备进行交互,请求获取所述路侧设备存储的地图信息,进而可以得到当前位置所在范围的地图信息。由于本发明实施例只需要下载当前位置对应的路侧设备存储的地图信息,数据量较小,因此,相对于现有技术,解决了需要下载完整离线电子地图需要存储空间较大的问题,此外,车辆与路侧设备之间可以通过短程通信协议进行数据交互,可以不使用移动网络,因此,本发明的实施例还可以解决非离线电子地图受限于网络状态和流量资费的问题,从而快速有效地获取所需要的地图信息。
应用示例
下面结合具体应用场景,详细说明本发明的实施例的上述导航系统。在本发明的实施例的一种应用示例中,所述导航系统可以包括:车载终端、路侧设备和服务器。
参照图6,示出了本发明的实施例的一种车载终端应用示例的结构框图,具体可以包括:
供电模块610,用于为其它模块供电,包括但不限于蓄电池、车载电源 等;
定位模块620,用于获取当前位置信息,获取方式包括但不限于GPS、北斗、戈洛萨斯等,在获取到当前位置信息后,将当前位置信息传递给处理模块;
界面模块630,用于输入导航请求以及显示路线信息和地图信息;
具体地,用户可以在图形界面上输入导航请求,例如输入目的地址,界面模块将该导航请求传递给处理模块。
处理模块640,用于整合各个模块以及处理数据。
在具体应用中,处理模块作为发送端,可以在获取定位模块传递来的当前位置信息和由显示模块传递来的目的地址之后,将这些信息发送给无线模块;处理模块作为接收端,可以从无线模块获取由路侧设备发送来的路线信息或地图信息。
无线模块650,用于通过V2X技术与路侧设备进行通信。
参照图7,示出了本发明的实施例的一种路侧设备应用示例的结构框图,具体可以包括:
供电模块710,用于为其它模块供电,包括但不限于蓄电池、车载电源等;
主模块720,用于存储路侧设备的位置信息、位置信息所在范围的地图信息等,以及对相关数据进行处理和转发,具体地,主模块可以通过无线模块与车载终端进行通信,例如,通过无线网络接收来自车载终端的导航请求以及向车载终端发送地图信息等,主模块还可以通过有线模块与服务器进行通信,例如,通过以太网接收来自服务器的路线信息以及地图信息等。
装置实施例一
参照图8,示出了本发明的实施例的一种车载终端实施例一的结构框图,具体可以包括:
地图信息请求模块810,用于向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;及
地图信息接收模块820,用于接收所述路侧设备依据所述地图信息请求返回的地图信息;所述地图信息为所述路侧设备存储的预置地理范围内的地 图信息。
在本发明的实施例的一种优选实施例中,所述车载终端还可以包括:
整合模块,用于对依次接收到的来自多个路侧设备的地图信息进行整合处理。
在本发明的实施例的另一种优选实施例中,所述车载终端还可以包括:
第一链路建立模块,用于根据短程通信协议,与路侧设备建立微波通信链路;
所述地图信息请求模块,具体可以包括:
地图信息请求子模块,用于根据所述微波通信链路,向当前位置对应的路侧设备发送地图信息请求;
所述地图信息接收模块,具体可以包括:
地图信息接收子模块,用于根据所述微波通信链路,接收所述路侧设备依据所述地图信息请求返回的地图信息。
装置实施例二
参照图9,示出了本发明的实施例的一种路侧设备实施例的结构框图,具体可以包括:
地图请求接收模块910,用于接收来自车载终端的目标路线信息对应的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;及
地图信息发送模块920,用于向所述车载终端发送存储的地图信息;所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
在本发明的实施例的一种优选实施例中,所述路侧设备还可以包括:
更新接收模块,用于接收来自服务器推送的更新后的地图信息;
地图更新模块,用于根据所述更新后的地图信息,对存储的地图信息进行更新。
在本发明的实施例的另一种优选实施例中,所述路侧设备还可以包括:
第二链路建立模块,用于根据短程通信协议,与车载终端建立微波通信链路;
所述地图请求接收模块,具体可以包括:
地图请求接收子模块,用于根据所述微波通信链路,接收来自车载终端的地图信息请求;
所述地图信息发送模块,具体可以包括:
地图信息发送子模块,用于根据所述微波通信链路,向所述车载终端发送存储的地图信息。
装置实施例三
参照图10,示出了本发明的实施例的一种车载终端实施例二的结构框图,具体可以包括:
导航请求发送模块1001,用于向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
路线信息接收模块1002,用于接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
目标路线确定模块1003,用于依据用户对于所述路线信息的选择操作,确定目标路线信息;
地图信息请求模块1004,用于向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;及
地图信息接收模块1005,用于接收所述路侧设备依据所述地图信息请求返回的地图信息;所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
导航信息生成模块1006,用于依据所述目标路线信息和所述地图信息,生成导航信息;及
导航信息显示模块1007,用于显示所述导航信息。
在本发明的实施例的一种优选实施例中,所述地图信息中可以包括地物信息和道路信息,所述导航信息生成模块1006,具体可以包括:
信息确定子模块,用于根据所述地图信息,确定与所述目标路线信息对应的地物信息和道路信息;
导航生成子模块,用于根据所述地物信息和道路信息生成所述目标路线信息对应的导航信息。
实体结构实施例一
参照图11,示出了本发明的实施例的一种车载终端实施例三的实体结构示意图,如图11所示,该车载终端可以包括:处理器(processor)1101、存储器(memory)1102、通信接口(Communications Interface)1103和总线1104;其中,
所述处理器1101、存储器1102、通信接口1103通过所述总线1104完成相互间的通信;
所述通信接口1103可以用于该车载终端与路侧设备之间的信息传输;
所述处理器1101可以调用所述存储器中的逻辑指令,以执行如下方法:
向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
实体结构实施例二
参照图12,示出了本发明的实施例的一种路侧设备实施例二的实体结构示意图,如图12所示,该路侧设备可以包括:处理器(processor)1201、存储器(memory)1202、通信接口(Communications Interface)1203和总线1204;其中,
所述处理器1201、存储器1202、通信接口1203通过所述总线1204完成相互间的通信;
所述通信接口1203可以用于该路侧设备与车载终端之间的信息传输;
所述处理器1201可以调用所述存储器1202中的逻辑指令,以执行如下方法:
接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
向所述车载终端发送存储的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
实体结构实施例三
参照图13,示出了本发明的实施例的一种车载终端实施例四的实体结构 示意图,如图13所示,该车载终端可以包括:处理器(processor)1301、存储器(memory)1302、通信接口(Communications Interface)1303和总线1304;其中,
所述处理器1301、存储器1302、通信接口1303通过所述总线1304完成相互间的通信;
所述通信接口1303可以用于该车载终端与路侧设备之间的信息传输;
所述处理器1301可以调用所述存储器中的逻辑指令,以执行如下方法:
向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
依据用户对于所述路线信息的选择操作,确定目标路线信息;
向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
依据所述目标路线信息和所述地图信息,生成导航信息;
显示所述导航信息。
程序实施例一
参看图1,本实施例公开一种计算机程序,包括程序代码,所述程序代码用于执行如下操作:
向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
介质实施例一
本实施例公开一种存储介质,用于存储如前述程序实施例一所述的计 算机程序。
程序实施例二
参看图3,本实施例公开一种计算机程序,包括程序代码,所述程序代码用于执行如下操作:
接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
向所述车载终端发送存储的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
介质实施例二
本实施例公开一种存储介质,用于存储如前述程序实施例二所述的计算机程序。
程序实施例三
参看图2,本实施例公开一种计算机程序,包括程序代码,所述程序代码用于执行如下操作:
向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
依据用户对于所述路线信息的选择操作,确定目标路线信息;
向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
依据所述目标路线信息和所述地图信息,生成导航信息;
显示所述导航信息。
前述程序实施例一至三所涉及的计算机程序可以通过多种编程语言进行编写,比如C语言、C++、Python等,本发明的实施例对此不作限定。
介质实施例三
本实施例公开一种存储介质,用于存储如前述程序实施例三所述的计算机程序。
本领域普通技术人员可以理解:实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成,前述的程序可以存储于一计算机可读取存储介质中,该程序在执行时,执行包括上述方法实施例的步骤;而前述的存储介质包括:ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是:以上各实施例仅用以说明本发明的实施例的技术方案,而非对其限制;尽管参照前述各实施例对本发明的实施例进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明的实施例各实施例技术方案的范围。

Claims (25)

  1. 一种获取地图信息的方法,其特征在于,应用于车载终端,包括:
    向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
    接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
  2. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    对依次接收的、来自多个路侧设备的地图信息进行整合处理。
  3. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    根据短程通信协议,与所述路侧设备建立微波通信链路;
    所述向当前位置对应的路侧设备发送地图信息请求的步骤,包括:
    根据所述微波通信链路,向当前位置对应的路侧设备发送地图信息请求;
    所述接收所述路侧设备依据所述地图信息请求返回的地图信息的步骤,包括:
    根据所述微波通信链路,接收所述路侧设备依据所述地图信息请求返回的地图信息。
  4. 一种获取地图信息的方法,其特征在于,应用于路侧设备,包括:
    接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
    向所述车载终端发送存储的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
  5. 根据权利要求4所述的方法,其特征在于,所述方法还包括:
    接收来自服务器推送的更新后的地图信息;
    根据所述更新后的地图信息,对存储的地图信息进行更新。
  6. 根据权利要求4所述的方法,其特征在于,所述方法还包括:
    根据短程通信协议,与车载终端建立微波通信链路;
    所述接收来自车载终端的地图信息请求的步骤,包括:
    根据所述微波通信链路,接收来自车载终端的地图信息请求;
    所述向所述车载终端发送存储的地图信息的步骤,包括:
    根据所述微波通信链路,向所述车载终端发送存储的地图信息。
  7. 一种导航方法,其特征在于,应用于车载终端,包括:
    向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
    接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
    依据用户对于所述路线信息的选择操作,确定目标路线信息;
    向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
    接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
    依据所述目标路线信息和所述地图信息,生成导航信息;
    显示所述导航信息。
  8. 根据权利要求7所述的方法,其特征在于,所述地图信息中包括地物信息和道路信息,所述依据所述目标路线信息和所述地图信息,生成导航信息的步骤,包括:
    根据所述地图信息,确定与所述目标路线信息对应的地物信息和道路信息;
    根据所述地物信息和道路信息生成所述目标路线信息对应的导航信息。
  9. 一种车载终端,其特征在于,包括:
    地图信息请求模块,用于向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;及
    地图信息接收模块,用于接收所述路侧设备依据所述地图信息请求返 回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
  10. 根据权利要求9所述的车载终端,其特征在于,所述车载终端还包括:
    整合模块,用于对依次接收的、来自多个路侧设备的地图信息进行整合处理。
  11. 根据权利要求9所述的车载终端,其特征在于,所述车载终端还包括:
    第一链路建立模块,用于根据短程通信协议,与路侧设备建立微波通信链路;
    所述地图信息请求模块,包括:
    地图信息请求子模块,用于根据所述微波通信链路,向当前位置对应的路侧设备发送地图信息请求;
    所述地图信息接收模块,包括:
    地图信息接收子模块,用于根据所述微波通信链路,接收所述路侧设备依据所述地图信息请求返回的地图信息。
  12. 一种路侧设备,其特征在于,包括:
    地图请求接收模块,用于接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;及
    地图信息发送模块,用于向所述车载终端发送存储的地图信息;所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
  13. 根据权利要求12所述的路侧设备,其特征在于,所述路侧设备还包括:
    更新接收模块,用于接收来自服务器推送的更新后的地图信息;
    地图更新模块,用于根据所述更新后的地图信息,对存储的地图信息进行更新。
  14. 根据权利要求12所述的路侧设备,其特征在于,所述路侧设备还包括:
    第二链路建立模块,用于根据短程通信协议,与车载终端建立微波通 信链路;
    所述地图请求接收模块,包括:
    地图请求接收子模块,用于根据所述微波通信链路,接收来自车载终端的地图信息请求;
    所述地图信息发送模块,包括:
    地图信息发送子模块,用于根据所述微波通信链路,向所述车载终端发送存储的地图信息。
  15. 一种车载终端,其特征在于,包括:
    导航请求发送模块,用于向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
    路线信息接收模块,用于接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
    目标路线确定模块,用于依据用户对于所述路线信息的选择操作,确定目标路线信息;
    地图信息请求模块,用于向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;及
    地图信息接收模块,用于接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
    导航信息生成模块,用于依据所述目标路线信息和所述地图信息,生成导航信息;及
    导航信息显示模块,用于显示所述导航信息。
  16. 根据权利要求15所述的车载终端,其特征在于,所述地图信息中包括地物信息和道路信息,所述导航信息生成模块,包括:
    信息确定子模块,用于根据所述地图信息,确定与所述目标路线信息对应的地物信息和道路信息;
    导航生成子模块,用于根据所述地物信息和道路信息生成所述目标路 线信息对应的导航信息。
  17. 一种车载终端,其特征在于,包括:
    处理器、存储器、通信接口和总线;其中,
    所述处理器、存储器、通信接口通过所述总线完成相互间的通信;
    所述通信接口用于该车载终端与路侧设备之间的信息传输;
    所述处理器用于调用所述存储器中的逻辑指令,以执行如下方法:
    向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
    接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
  18. 一种计算机程序,其特征在于,包括程序代码,所述程序代码用于执行如下操作:
    向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
    接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
  19. 一种存储介质,用于存储如权利要求18所述的计算机程序。
  20. 一种路侧设备,其特征在于,包括:
    处理器、存储器、通信接口和总线;其中,
    所述处理器、存储器、通信接口通过所述总线完成相互间的通信;
    所述通信接口用于该路侧设备与车载终端之间的信息传输;
    所述处理器用于调用所述存储器中的逻辑指令,以执行如下方法:
    接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
    向所述车载终端发送存储的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
  21. 一种计算机程序,其特征在于,包括程序代码,所述程序代码用于执行如下操作:
    接收来自车载终端的地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
    向所述车载终端发送存储的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息。
  22. 一种存储介质,用于存储如权利要求21所述的计算机程序。
  23. 一种车载终端,其特征在于,包括:
    处理器、存储器、通信接口和总线;其中,
    所述处理器、存储器、通信接口通过所述总线完成相互间的通信;
    所述通信接口用于该车载终端与路侧设备之间的信息传输;
    所述处理器用于调用所述存储器中的逻辑指令,以执行如下方法:
    向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
    接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
    依据用户对于所述路线信息的选择操作,确定目标路线信息;
    向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信;
    接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
    依据所述目标路线信息和所述地图信息,生成导航信息;
    显示所述导航信息。
  24. 一种计算机程序,其特征在于,包括程序代码,所述程序代码用于执行如下操作:
    向当前位置对应的路侧设备发送导航请求;其中,所述车载终端与所述路侧设备之间通过短程通信协议通信,所述导航请求中包括起始地址信息和目的地址信息;
    接收来自所述路侧设备的、符合所述起始地址信息和目的地址信息的至少一种路线信息;
    依据用户对于所述路线信息的选择操作,确定目标路线信息;
    向当前位置对应的路侧设备发送地图信息请求;其中,所述车载终端 与所述路侧设备之间通过短程通信协议通信;
    接收所述路侧设备依据所述地图信息请求返回的地图信息;其中,所述地图信息为所述路侧设备存储的预置地理范围内的地图信息;
    依据所述目标路线信息和所述地图信息,生成导航信息;
    显示所述导航信息。
  25. 一种存储介质,用于存储如权利要求24所述的计算机程序。
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