WO2018032654A1 - Offline map acquisition method, and in-vehicle unit - Google Patents
Offline map acquisition method, and in-vehicle unit Download PDFInfo
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- WO2018032654A1 WO2018032654A1 PCT/CN2016/108330 CN2016108330W WO2018032654A1 WO 2018032654 A1 WO2018032654 A1 WO 2018032654A1 CN 2016108330 W CN2016108330 W CN 2016108330W WO 2018032654 A1 WO2018032654 A1 WO 2018032654A1
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- map data
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- 230000015654 memory Effects 0.000 description 20
- 238000004891 communication Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000001427 coherent effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/28—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network with correlation of data from several navigational instruments
- G01C21/30—Map- or contour-matching
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
Definitions
- the present invention relates to the field of electronic technologies, and in particular, to an offline map acquisition method and an onboard unit.
- maps of in-vehicle devices are generally downloaded and updated in the presence of a network, or the offline map data packets are downloaded first in the case of a network, and then used without a network.
- the user does not currently have a network to obtain a map, and does not download an offline map of the corresponding area in advance, so that when the user needs to use the map for navigation, it cannot be realized.
- the technical problem to be solved by the embodiments of the present invention is to provide an offline map acquisition method and a vehicle-mounted unit, which are used to solve the problem of map acquisition of an in-vehicle device without a mobile network.
- An embodiment of the present invention provides an offline map obtaining method, where the method includes:
- the vehicle unit sends a connection request to the roadside unit, and establishes a connection with the roadside unit;
- the onboard unit sends an area map acquisition request to the roadside unit
- the vehicle-mounted unit receives map data of an area where the roadside unit is sent by the roadside unit, where map data of the area where the roadside unit is located is obtained by the roadside unit based on the area map Requesting acquisition and sending to the onboard unit.
- the onboard unit after receiving the map data of the area where the roadside unit is sent by the roadside unit, the onboard unit further includes:
- the onboard unit outputs the map data through a display device.
- the map data has a corresponding area identifier, and the area identifier is regularly marked according to a relative position relationship of each area;
- outputting the map data by the onboard unit through the display device includes:
- the onboard unit determines, according to the pre-stored area identifier position relation table, a first area identifier adjacent to the area identifier corresponding to the received map data;
- the onboard unit detects whether the area identifier corresponding to the at least one map data acquired in advance exists The first area identifier
- the onboard unit acquires the map data corresponding to the first area identifier according to the received relative positional relationship between the area identifier corresponding to the map data and the first area identifier, and receives The map data that is obtained is combined with the map data corresponding to the first area identifier and output.
- the method further includes:
- the onboard unit after the onboard unit receives the navigation instruction for the target location information input by the user, querying, in the map data, whether the target location information exists;
- the onboard unit plans and outputs a driving route from a current location to a location corresponding to the target location information according to the map data.
- the method further includes:
- the vehicle-mounted unit sends a traffic data update request for the map data to the roadside unit, so that the roadside unit acquires vehicle state information of a region, and generates a latest region according to the vehicle state information. Traffic data is sent to the onboard unit;
- the onboard unit receives the latest traffic data sent by the roadside unit, and updates the map data according to the latest traffic data.
- an embodiment of the present invention further provides an onboard unit, where the onboard unit includes:
- connection establishing module configured to send a connection request to the roadside unit by the onboard unit, and establish a connection with the roadside unit
- a first sending module configured to send, by the onboard unit, an area map obtaining request to the roadside unit
- a map receiving module configured to receive, by the onboard unit, the road sent by the roadside unit The map data of the area where the side unit is located, wherein the map data of the area where the roadside unit is located is obtained by the roadside unit based on the area map acquisition request, and is sent to the onboard unit.
- the onboard unit further includes:
- a map output module configured to output the map data by the display unit by the onboard unit.
- the map data has a corresponding area identifier, and the area identifier is regularly marked according to a relative positional relationship of each area;
- the map output module includes:
- an identifier determining unit configured to determine, by the onboard unit, according to the pre-stored area identifier position relationship table Receiving, by the area corresponding to the map data, an adjacent first area identifier;
- a determining unit configured to detect, by the onboard unit, whether the first area identifier exists in an area identifier corresponding to the at least one map data acquired in advance;
- an output unit configured to: if present, the onboard unit acquires map data corresponding to the first area identifier according to the received area identifier corresponding to the map data and the first area identifier The positional relationship is obtained by synthesizing the received map data and the map data corresponding to the first area identifier.
- the onboard unit further includes:
- a query module configured to query, in the map data, whether the target location information exists after the onboard unit receives the navigation instruction for the target location information input by the user;
- a route planning module configured to: if the target location information exists, the onboard unit plans and outputs a driving route from a current location to a location corresponding to the target location information according to the map data.
- the onboard unit further includes:
- a second sending module configured to send, by the onboard unit, a traffic data update request for the map data to the roadside unit, so that the roadside unit acquires vehicle state information of a region, according to the The vehicle status information generates the latest traffic data of the area in which it is located, and transmits the traffic data to the onboard unit;
- an update module configured to receive, by the onboard unit, the latest traffic data sent by the roadside unit, and update the map data according to the latest traffic data.
- a connection request is sent to the roadside unit by the onboard unit, and a connection is established with the roadside unit, and then the onboard unit sends an area map acquisition request to the roadside unit, the roadside unit Obtaining, according to the area map obtaining request, the map data of the area where the roadside unit is located, and transmitting the map data to the onboard unit, where the onboard unit receives the map data of the area where the roadside unit is located, which can solve the problem of the vehicle.
- the map gets the problem with the device without a mobile network.
- FIG. 1 is a schematic flowchart of an offline map acquisition method according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of a map data area division according to an embodiment of the present invention.
- FIG. 3 is a schematic diagram of a method for marking a region identifier according to an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of an onboard unit according to an embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of a map output module of FIG. 3 according to an embodiment of the present invention.
- FIG. 6 is a schematic structural diagram of another vehicle-mounted unit according to an embodiment of the present invention.
- a roadside unit (RSU, abbreviated as Road Side Unit), which is installed on the road side and uses a dedicated short-range communication (DSRC) to communicate with an on-board unit (OBU, On Board Unit) or a server. .
- DSRC dedicated short-range communication
- An onboard unit is a device that uses DSRC technology to communicate with an RSU and a server, and is usually installed in a vehicle to acquire data of its own vehicle, and with servers, roadside units, and other vehicles.
- the in-vehicle device performs data transmission and reception.
- FIG. 1 is a schematic flowchart of a method for acquiring an offline map according to an embodiment of the present invention.
- the method may be implemented by an onboard unit.
- the method as shown in the figure includes at least:
- Step S101 The onboard unit sends a connection request to the roadside unit, and establishes a connection with the roadside unit.
- connection request may be sent to the roadside unit, where the request may carry the identifier of the vehicle unit or a connection address, such as a Bluetooth address,
- the edge unit can agree to the request and establish a connection with the onboard unit corresponding to the received identifier or connection address.
- Step S102 The onboard unit sends an area map acquisition request to the roadside unit.
- the area map acquisition request may be sent to the roadside unit, where the area map acquisition request is used to instruct the roadside unit to send to the onboard unit.
- Step S103 the onboard unit receives map data of an area where the roadside unit is sent by the roadside unit, where map data of the area where the roadside unit is located is the roadside unit based on the The regional map acquisition request is acquired and sent to the onboard unit.
- the roadside unit After receiving the area map acquisition request, acquires map data of the area where the pre-stored roadside unit is located, and transmits map data of the area where the roadside unit is located to the vehicle-mounted unit.
- map data of an area in which the road itself is located is pre-stored in the roadside unit.
- the area A includes a roadside unit 1 (traffic light), a roadside unit 2 (street light), and a roadside unit 3 (convenience store), and all of the three roadside units are pre-stored in the area A.
- Map data that is, if the onboard unit transmits a regional map acquisition request after any of the roadside unit 1, the roadside unit 2, or the roadside unit 3 is connected, the received map data is the area A Map data shown.
- step S103 the method further includes:
- the onboard unit outputs the map data through a display device.
- the onboard unit may output the map data, for example, displaying image data of the map data on a display screen of the vehicle unit, and the voice data passes through the earphone or the speaker. Play it out.
- the map data has a corresponding area identifier, and the area identifier is regularly marked according to the relative positional relationship of each area, and the onboard unit outputs the map data through the display device, which may be:
- the onboard unit determines, according to the pre-stored area identifier position relation table, a first area identifier adjacent to the area identifier corresponding to the received map data.
- the map data has a corresponding area identifier, where the area identifier may be identified according to a preset rule that can reflect the relative positional relationship between the areas. For example, as shown in FIG. 3, an exemplary identification manner, four regions adjacent to the region 1 may be labeled as 11, 12, 13, and 14, respectively, with the region 1, the region 12, and Areas adjacent to area 13 may be labeled 123, and so on.
- the area identifier location relationship table is a mapping table reflecting the location relationship between the area identifier and the area, the area
- the identification position relationship table may be pre-stored in the vehicle-mounted unit, or may be acquired by the vehicle-mounted unit through the roadside unit, and is not specifically limited.
- the in-vehicle unit can search for the first area identifier adjacent to the area identifier corresponding to the received map data by using the area identifier position relationship table.
- the vehicle unit can determine the first area adjacent to the area identifier 11 corresponding to the map data according to Table 1.
- the identifiers are 1, 112 and 113 respectively.
- the onboard unit detects whether the first area identifier exists in the area identifier corresponding to the at least one map data acquired in advance.
- the onboard unit has previously acquired at least one map data of another area, and the onboard unit may search for the first area identifier corresponding to the at least one map data that has been previously acquired.
- Area ID the area identifiers corresponding to at least one map data that have been acquired by the in-vehicle unit are 112, 124, and 14, respectively, and can be found after comparing with the first area identifiers 1, 11 2 and 113, and the area identifier 112 is the first
- An area identifier may be considered to exist in the area identifier corresponding to the at least one map data acquired in advance.
- the onboard unit acquires the map data corresponding to the first area identifier according to the received relative positional relationship between the area identifier corresponding to the map data and the first area identifier, and receives The map data that is obtained is combined with the map data corresponding to the first area identifier and output.
- the onboard unit detects the area identifier corresponding to the at least one map data acquired in advance, If the first area identifier is present, the map data corresponding to the first area identifier and the map data of the area where the roadside unit is currently requested and acquired by the onboard unit may be combined and output. In the synthesis, the map data may be synthesized according to the relative positional relationship indicated by the received area map and the first area identifier.
- the first area existing in the onboard unit is identified as area B, area C, and area D
- the area identifier corresponding to the map data acquired by the current vehicle unit is area A
- the map is reflected according to the preset area identifier.
- the relative positional relationship of the data, the map data obtained by combining the area A, the area B, the area C, and the area D as shown in FIG. 2 can be output to the user.
- the method further includes:
- the onboard unit After the onboard unit receives the navigation instruction for the target location information input by the user, it is queried in the map data whether the target location information exists.
- the onboard unit can navigate the vehicle in combination with the map data and the GPS navigation system.
- the in-vehicle device may first search for the target location information input by the user in the at least one map data that has been acquired.
- the navigation instruction may be a pressing operation of the navigation button of the in-vehicle device, a gesture operation on the preset navigation icon, or a voice command issued to the in-vehicle device, and the like, and is not specifically limited herein.
- the navigation instruction includes target location information that the user needs to navigate, and the target location information may include a road name, a marker name, and the like.
- the onboard unit plans and outputs a driving route from a current location to a location corresponding to the target location information according to the map data.
- the onboard unit searches for the target location information in the map data acquired in advance, and can plan a driving route for the user according to the current location of the in-vehicle device and the acquired map data.
- the target location information is in the same area as the current location of the onboard unit, and then the in-vehicle device only needs to call the map data of the current area of the onboard unit to drive the vehicle.
- the route is only planned.
- the target location information is not in the same area as the current location of the vehicle-mounted unit, and then the vehicle-mounted unit needs to first detect whether the map data corresponding to the target location information and the map data corresponding to the current location of the vehicle-mounted unit can be combined into a coherent map. Data, if available Therefore, the driving route can be planned only, otherwise the user is prompted not to plan the driving route.
- the in-vehicle device can determine whether the relative positional relationship between the two is based on the area identifier of the map data corresponding to the target location information and the area identifier of the map data corresponding to the current location of the vehicle-mounted unit. If they are adjacent, the driving route planning is directly performed according to the map data synthesized by the adjacent positional relationship; if not adjacent, the onboard unit may detect at least one map data acquired in advance in the in-vehicle unit. Whether there is map data that connects the map data of the two, and if so, a coherent map data is synthesized, and the driving route planning is performed based on the coherent map data.
- the method further includes:
- the onboard unit transmits a traffic data update request for the map data to the roadside unit, so that the roadside unit acquires vehicle state information of a region, and generates a latest region according to the vehicle state information. Traffic data is sent to the onboard unit.
- the map data may include traffic data, and may be used to indicate data of a road's patency state, traffic flow, traffic indicator status, and the like in the map.
- the map data pre-stored by the roadside unit is generally acquired before, so the traffic data is not updated.
- the vehicle unit may send a traffic data update request to the roadside unit, and after receiving the traffic data update request, the roadside unit may acquire the vehicle state information of the area in which it is located, and then according to the vehicle.
- the state information generates the latest traffic data in the area where the roadside unit is located and sends it to the vehicle in the unit.
- the vehicle status information may include a vehicle position, a vehicle speed, a road vehicle density, a road traffic volume, and the like, and the specific acquisition manner may receive the vehicle status information sent by the vehicle or the roadside unit in the area through the vehicle network.
- the onboard unit receives the latest traffic data sent by the roadside unit, and updates the map data according to the latest traffic data.
- the onboard unit may update the acquired map data of the area.
- the embodiment of the present invention sends a connection request to the roadside unit through the vehicle-mounted unit, and establishes a connection with the roadside unit through the vehicle network, and then the vehicle-mounted unit sends the area map to the roadside unit through the vehicle network.
- the roadside unit Acquiring a request, the roadside unit acquiring the area where the roadside unit is located based on the area map acquisition request
- the map data of the domain is sent to the onboard unit, and the onboard unit receives the map data of the area where the roadside unit is located by the roadside unit through the vehicle network, and can solve the problem that the in-vehicle device has no mobile network. Map gets the problem.
- FIG. 4 is a schematic structural diagram of an onboard unit according to an embodiment of the present invention, including:
- connection establishing module 410 is configured to send, by the onboard unit, a connection request to the roadside unit, and establish a connection with the roadside unit;
- the first sending module 420 is configured to send, by the onboard unit, an area map obtaining request to the roadside unit
- the map receiving module 430 is configured to receive, by the onboard unit, map data of an area where the roadside unit is sent by the roadside unit, where map data of the area where the roadside unit is located is the roadside The unit acquires based on the area map acquisition request and sends it to the onboard unit.
- the onboard unit further includes:
- the map output module 440 is configured to output the map data by the display unit through the display unit.
- the map data has a corresponding area identifier, and the area identifier is regularly marked according to a relative positional relationship of each area;
- the map output module 440 includes an identification determining unit 441, a determining unit 442, and an output unit 443, as shown in FIG. 5, wherein:
- the identifier determining unit 441 is configured to determine, according to the pre-stored area identifier position relationship table, the first area identifier adjacent to the area identifier corresponding to the received map data;
- the determining unit 442 is configured to detect, by the onboard component, whether the first area identifier exists in an area identifier corresponding to the at least one map data that is acquired in advance;
- the output unit 443 is configured to: if yes, the onboard unit acquires the map data corresponding to the first area identifier according to the received area identifier corresponding to the map data and the first area identifier The relative positional relationship is obtained by synthesizing the received map data and the map data corresponding to the first area identifier.
- the onboard unit further includes:
- the query module 450 is configured to: when the onboard unit receives the navigation instruction for the target location information input by the user, query the map data whether the target location information exists; [0103]
- the route planning module 460 is configured to: if the target location information exists, the onboard unit plans and outputs a driving route from a current location to a location corresponding to the target location information according to the map data.
- the onboard unit further includes:
- the second sending module 470 is configured to send, by the onboard unit, a traffic data update request for the map data to the roadside unit, so that the roadside unit acquires vehicle state information of a region, according to the The vehicle status information generates the latest traffic data of the area in which it is located, and transmits the traffic data to the onboard unit;
- the update module 480 is configured to receive, by the onboard unit, the latest traffic data sent by the roadside unit, and update the map data according to the latest traffic data.
- the embodiment of the present invention sends a connection request to the roadside unit through the vehicle-mounted unit, and establishes a connection with the roadside unit through the vehicle network, and then the vehicle-mounted unit sends the area map to the roadside unit through the vehicle network.
- the roadside unit acquires map data of an area where the roadside unit is located based on the area map acquisition request, and sends the map data to the vehicle-mounted unit, and the vehicle-mounted unit receives the roadside unit transmission station by using the vehicle network
- the map data of the area where the roadside unit is located can solve the problem of map acquisition of the in-vehicle device without the mobile network.
- FIG. 6 is a schematic structural diagram of another vehicle-mounted unit according to an embodiment of the present invention.
- the onboard unit includes a processor 61, a memory 62, and a communication interface 63.
- the processor 61 is connected to a memory 62 and a communication interface 63, for example, the processor 61 can be connected to the memory 62 and the communication interface 63 via a bus.
- the processor 61 is configured to support the onboard unit to perform the corresponding function in the above method.
- the processor 61 can be a central processing unit (English: central processing unit,
- the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
- ASIC application-specific integrated circuit
- PLD programmable logic device
- the above PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), or a general array logic (GAL). Or any combination thereof
- the memory 62 is used to store map data, traffic data, and the like.
- Memory 62 can include volatile memory Memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); memory 62 may also include non-volatile memory (English: non-vol atile memory), such as read-only Memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state drive, abbreviation: SSD
- the memory 62 may also include a combination of the above types of memories.
- the communication interface 63 is for wireless connection with the roadside unit.
- the processor 61 can perform the following operations:
- the map data of the area where the roadside unit is sent by the roadside unit is received by the communication interface 63, wherein the map data of the area where the roadside unit is located is obtained by the roadside unit based on the area map. Requesting acquisition and sending to the onboard unit.
- the processor 61 is further configured to:
- the map data is output by a display device.
- the map data has a corresponding area identifier, and the area identifier is regularly marked according to a relative position relationship of each area;
- the processor 61 outputs the map data by using a display device, specifically for:
- the processor 61 is further configured to:
- the onboard unit plans and outputs a driving route from a current location to a location corresponding to the target location information according to the map data.
- the processor 61 is further configured to:
- the storage medium may be a magnetic disk, an optical disk, or a read-only storage memory (Read-Only)
- ROM Read Only Memory
- RAM Random Access Memory
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Abstract
Provided in embodiments of the present invention are an offline map acquisition method, and in-vehicle unit. The method comprises: an in-vehicle unit sends to a roadside unit a connection request and establishes a connection to the roadside unit; the in-vehicle unit sends to the roadside unit a regional map acquisition request; and the in-vehicle unit receives map data of an area of the roadside unit sent by the roadside unit, wherein the map data of the area of the roadside unit is acquired the roadside unit on the basis of the regional map acquisition request, and sent to the in-vehicle unit. The present invention can be employed to solve the problem of map acquisition when an in-vehicle unit does not have a mobile network access.
Description
说明书 发明名称:一种离线地图获取方法及车载单元 Instruction title: An offline map acquisition method and vehicle unit
[0001] 技术领域 [0001] Technical Field
[0002] 本发明涉及电子技术领域, 尤其涉及一种离线地图获取方法及车载单元。 [0002] The present invention relates to the field of electronic technologies, and in particular, to an offline map acquisition method and an onboard unit.
[0003] 背景技术 BACKGROUND
[0004] 目前车载设备的地图, 一般都是在有网络的情况下实吋下载更新的, 或者是提 前在有网络的情况下先下载好离线地图数据包, 然后在无网络的情况下使用。 但是, 有一种情况是用户当前没有网络去实吋获取地图, 也没有提前下载好相 应区域的离线地图, 那么当用户需要使用地图进行导航吋, 就无法实现。 [0004] At present, maps of in-vehicle devices are generally downloaded and updated in the presence of a network, or the offline map data packets are downloaded first in the case of a network, and then used without a network. However, there is a case where the user does not currently have a network to obtain a map, and does not download an offline map of the corresponding area in advance, so that when the user needs to use the map for navigation, it cannot be realized.
[0005] 发明内容 SUMMARY OF THE INVENTION
[0006] 本发明实施例所要解决的技术问题在于, 提供一种离线地图获取方法及车载单 元, 用于解决车载设备在无移动网络情况下的地图获取问题。 The technical problem to be solved by the embodiments of the present invention is to provide an offline map acquisition method and a vehicle-mounted unit, which are used to solve the problem of map acquisition of an in-vehicle device without a mobile network.
[0007] 本发明实施例提供了一种离线地图获取方法, 该方法包括: An embodiment of the present invention provides an offline map obtaining method, where the method includes:
[0008] 车载单元向路边单元发送连接请求, 并与所述路边单元建立连接; [0008] the vehicle unit sends a connection request to the roadside unit, and establishes a connection with the roadside unit;
[0009] 所述车载单元向所述路边单元发送区域地图获取请求; [0009] the onboard unit sends an area map acquisition request to the roadside unit;
[0010] 所述车载单元接收所述路边单元发送的所述路边单元所在区域的地图数据, 其 中, 所述路边单元所在区域的地图数据是所述路边单元基于所述区域地图获取 请求进行获取, 并发送给所述车载单元的。 [0010] the vehicle-mounted unit receives map data of an area where the roadside unit is sent by the roadside unit, where map data of the area where the roadside unit is located is obtained by the roadside unit based on the area map Requesting acquisition and sending to the onboard unit.
[0011] 可选的, 所述车载单元接收所述路边单元发送的所述路边单元所在区域的地图 数据之后, 还包括: [0011] Optionally, after receiving the map data of the area where the roadside unit is sent by the roadside unit, the onboard unit further includes:
[0012] 所述车载单元通过显示设备输出所述地图数据。 [0012] The onboard unit outputs the map data through a display device.
[0013] 可选的, 所述地图数据存在对应的区域标识, 所述区域标识根据各区域的相对 位置关系规律地标记; [0013] Optionally, the map data has a corresponding area identifier, and the area identifier is regularly marked according to a relative position relationship of each area;
[0014] 所述车载单元通过显示设备输出所述地图数据包括: [0014] outputting the map data by the onboard unit through the display device includes:
[0015] 所述车载单元根据预存的区域标识位置关系表, 确定与接收到的所述地图数据 对应的区域标识相邻的第一区域标识; [0015] the onboard unit determines, according to the pre-stored area identifier position relation table, a first area identifier adjacent to the area identifier corresponding to the received map data;
[0016] 所述车载单元检测预先获取到的至少一个地图数据对应的区域标识中是否存在
所述第一区域标识; [0016] the onboard unit detects whether the area identifier corresponding to the at least one map data acquired in advance exists The first area identifier;
[0017] 若存在, 则所述车载单元获取所述第一区域标识对应的地图数据按照接收到的 所述地图数据对应的区域标识与所述第一区域标识所指示的相对位置关系, 将 接收到的所述地图数据与所述第一区域标识对应的地图数据合成后输出。 [0017] if present, the onboard unit acquires the map data corresponding to the first area identifier according to the received relative positional relationship between the area identifier corresponding to the map data and the first area identifier, and receives The map data that is obtained is combined with the map data corresponding to the first area identifier and output.
[0018] 可选的, 所述方法还包括: [0018] Optionally, the method further includes:
[0019] 当所述车载单元接收到用户输入的针对目标位置信息的导航指令后, 在所述地 图数据中査询是否存在所述目标位置信息; [0019] after the onboard unit receives the navigation instruction for the target location information input by the user, querying, in the map data, whether the target location information exists;
[0020] 若所述目标位置信息存在, 则所述车载单元根据所述地图数据, 规划并输出从 当前位置前往所述目标位置信息对应的位置的行车路线。 [0020] If the target location information exists, the onboard unit plans and outputs a driving route from a current location to a location corresponding to the target location information according to the map data.
[0021] 可选的, 所述方法还包括: [0021] Optionally, the method further includes:
[0022] 所述车载单元向所述路边单元发送针对所述地图数据的交通数据更新请求, 以 使所述路边单元获取所在区域的车辆状态信息, 根据所述车辆状态信息生成所 在区域最新的交通数据, 并发送给所述车载单元; [0022] the vehicle-mounted unit sends a traffic data update request for the map data to the roadside unit, so that the roadside unit acquires vehicle state information of a region, and generates a latest region according to the vehicle state information. Traffic data is sent to the onboard unit;
[0023] 所述车载单元接收所述路边单元发送的所述最新的交通数据, 并根据所述最新 的交通数据, 更新所述地图数据。 And [0023] the onboard unit receives the latest traffic data sent by the roadside unit, and updates the map data according to the latest traffic data.
[0024] 相应的, 本发明实施例还提供了一种车载单元, 该车载单元包括: [0024] Correspondingly, an embodiment of the present invention further provides an onboard unit, where the onboard unit includes:
[0025] 连接建立模块, 用于车载单元向路边单元发送连接请求, 并与所述路边单元建 立连接; [0025] a connection establishing module, configured to send a connection request to the roadside unit by the onboard unit, and establish a connection with the roadside unit;
[0026] 第一发送模块, 用于所述车载单元向所述路边单元发送区域地图获取请求; [0027] 地图接收模块, 用于所述车载单元接收所述路边单元发送的所述路边单元所在 区域的地图数据, 其中, 所述路边单元所在区域的地图数据是所述路边单元基 于所述区域地图获取请求进行获取, 并发送给所述车载单元的。 a first sending module, configured to send, by the onboard unit, an area map obtaining request to the roadside unit; [0027] a map receiving module, configured to receive, by the onboard unit, the road sent by the roadside unit The map data of the area where the side unit is located, wherein the map data of the area where the roadside unit is located is obtained by the roadside unit based on the area map acquisition request, and is sent to the onboard unit.
[0028] 可选的, 所述车载单元还包括: [0028] Optionally, the onboard unit further includes:
[0029] 地图输出模块, 用于所述车载单元通过显示设备输出所述地图数据。 [0029] a map output module, configured to output the map data by the display unit by the onboard unit.
[0030] 可选的, 所述地图数据存在对应的区域标识, 所述区域标识根据各区域的相对 位置关系规律地标记; [0030] Optionally, the map data has a corresponding area identifier, and the area identifier is regularly marked according to a relative positional relationship of each area;
[0031] 所述地图输出模块包括: [0031] The map output module includes:
[0032] 标识确定单元, 用于所述车载单元根据预存的区域标识位置关系表, 确定与接
收到的所述地图数据对应的区域标识相邻的第一区域标识; [0032] an identifier determining unit, configured to determine, by the onboard unit, according to the pre-stored area identifier position relationship table Receiving, by the area corresponding to the map data, an adjacent first area identifier;
[0033] 判断单元, 用于所述车载单元检测预先获取到的至少一个地图数据对应的区域 标识中是否存在所述第一区域标识; a determining unit, configured to detect, by the onboard unit, whether the first area identifier exists in an area identifier corresponding to the at least one map data acquired in advance;
[0034] 输出单元, 用于若存在, 则所述车载单元获取所述第一区域标识对应的地图数 据按照接收到的所述地图数据对应的区域标识与所述第一区域标识所指示的相 对位置关系, 将接收到的所述地图数据与所述第一区域标识对应的地图数据合 成后输出。 [0034] an output unit, configured to: if present, the onboard unit acquires map data corresponding to the first area identifier according to the received area identifier corresponding to the map data and the first area identifier The positional relationship is obtained by synthesizing the received map data and the map data corresponding to the first area identifier.
[0035] 可选的, 所述车载单元还包括: [0035] Optionally, the onboard unit further includes:
[0036] 査询模块, 用于当所述车载单元接收到用户输入的针对目标位置信息的导航指 令后, 在所述地图数据中査询是否存在所述目标位置信息; [0036] a query module, configured to query, in the map data, whether the target location information exists after the onboard unit receives the navigation instruction for the target location information input by the user;
[0037] 路线规划模块, 用于若所述目标位置信息存在, 则所述车载单元根据所述地图 数据, 规划并输出从当前位置前往所述目标位置信息对应的位置的行车路线。 [0037] a route planning module, configured to: if the target location information exists, the onboard unit plans and outputs a driving route from a current location to a location corresponding to the target location information according to the map data.
[0038] 可选的, 所述车载单元还包括: [0038] Optionally, the onboard unit further includes:
[0039] 第二发送模块, 用于所述车载单元向所述路边单元发送针对所述地图数据的交 通数据更新请求, 以使所述路边单元获取所在区域的车辆状态信息, 根据所述 车辆状态信息生成所在区域最新的交通数据, 并发送给所述车载单元; [0039] a second sending module, configured to send, by the onboard unit, a traffic data update request for the map data to the roadside unit, so that the roadside unit acquires vehicle state information of a region, according to the The vehicle status information generates the latest traffic data of the area in which it is located, and transmits the traffic data to the onboard unit;
[0040] 更新模块, 用于所述车载单元接收所述路边单元发送的所述最新的交通数据, 并根据所述最新的交通数据, 更新所述地图数据。 [0040] an update module, configured to receive, by the onboard unit, the latest traffic data sent by the roadside unit, and update the map data according to the latest traffic data.
[0041] 本发明实施例通过车载单元向路边单元发送连接请求, 并与所述路边单元建立 连接, 然后所述车载单元向所述路边单元发送区域地图获取请求, 所述路边单 元基于所述区域地图获取请求获取路边单元所在区域的地图数据, 并发送给所 述车载单元, 所述车载单元接收所述路边单元发送所述路边单元所在区域的地 图数据, 可以解决车载设备在无移动网络情况下的地图获取问题。 [0041] In the embodiment of the present invention, a connection request is sent to the roadside unit by the onboard unit, and a connection is established with the roadside unit, and then the onboard unit sends an area map acquisition request to the roadside unit, the roadside unit Obtaining, according to the area map obtaining request, the map data of the area where the roadside unit is located, and transmitting the map data to the onboard unit, where the onboard unit receives the map data of the area where the roadside unit is located, which can solve the problem of the vehicle. The map gets the problem with the device without a mobile network.
[0042] 附图说明 BRIEF DESCRIPTION OF THE DRAWINGS
[0043] 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实施例或 现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的 附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创 造性劳动的前提下, 还可以根据这些附图获得其他的附图。
[0044] 图 1是本发明实施例提供的一种离线地图获取方法的流程示意图; [0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work. 1 is a schematic flowchart of an offline map acquisition method according to an embodiment of the present invention;
[0045] 图 2是本发明实施例提供的一种地图数据区域划分示意图; 2 is a schematic diagram of a map data area division according to an embodiment of the present invention;
[0046] 图 3是本发明实施例提供的一种区域标识标记方法的示意图; 3 is a schematic diagram of a method for marking a region identifier according to an embodiment of the present invention;
[0047] 图 4是本发明实施例提供的一种车载单元的结构示意图; 4 is a schematic structural diagram of an onboard unit according to an embodiment of the present invention;
[0048] 图 5是本发明实施例中图 3的地图输出模块的结构示意图; 5 is a schematic structural diagram of a map output module of FIG. 3 according to an embodiment of the present invention;
[0049] 图 6是本发明实施例提供的另一种车载单元的结构示意图。 FIG. 6 is a schematic structural diagram of another vehicle-mounted unit according to an embodiment of the present invention.
[0050] 具体实施方式 DETAILED DESCRIPTION
[0051] 下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是全部 的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创造性劳 动前提下所获得的所有其他实施例, 都属于本发明保护的范围。 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
[0052] 首先, 先对本发明实施例中均有涉及的名词进行解释。 [0052] First, the nouns involved in the embodiments of the present invention are first explained.
[0053] 路边单元 (RSU, 英文缩写 Road Side Unit) , 安装在路侧, 采用专用短程通信 技术 (DSRC, Dedicated Short Range Communication) 与车载单元 (OBU, On Board Unit) 或服务器进行通讯的装置。 [0053] A roadside unit (RSU, abbreviated as Road Side Unit), which is installed on the road side and uses a dedicated short-range communication (DSRC) to communicate with an on-board unit (OBU, On Board Unit) or a server. .
[0054] 车载单元 (OBU, On Board Unit) , 是采用 DSRC技术, 与 RSU及服务器进行 通讯的装置, 通常安装在车辆中, 获取自身车辆的数据, 并且与服务器、 路边 单元以及其他车辆的车载设备进行数据收发。 [0054] An onboard unit (OBU) is a device that uses DSRC technology to communicate with an RSU and a server, and is usually installed in a vehicle to acquire data of its own vehicle, and with servers, roadside units, and other vehicles. The in-vehicle device performs data transmission and reception.
[0055] 图 1是本发明实施例提供的一种离线地图获取方法的流程示意图, 本方法流程 可以由车载单元实施, 如图所示所述方法至少包括: 1 is a schematic flowchart of a method for acquiring an offline map according to an embodiment of the present invention. The method may be implemented by an onboard unit. The method as shown in the figure includes at least:
[0056] 步骤 S101, 车载单元向路边单元发送连接请求, 并与所述路边单元建立连接。 [0056] Step S101: The onboard unit sends a connection request to the roadside unit, and establishes a connection with the roadside unit.
[0057] 具体的, 当用户需要从某一路边单元中获取离线地图吋, 可以先向该路边单元 发送连接请求, 该请求中可以携带车载单元的标识或者连接地址, 例如蓝牙地 址, 则路边单元在接收到车载单元发送的该连接请求后, 则可以同意该请求, 并与接收到的标识或连接地址对应的车载单元建立连接。 [0057] Specifically, when the user needs to obtain an offline map from a roadside unit, the connection request may be sent to the roadside unit, where the request may carry the identifier of the vehicle unit or a connection address, such as a Bluetooth address, After receiving the connection request sent by the onboard unit, the edge unit can agree to the request and establish a connection with the onboard unit corresponding to the received identifier or connection address.
[0058] 步骤 S102, 所述车载单元向所述路边单元发送区域地图获取请求。 [0058] Step S102: The onboard unit sends an area map acquisition request to the roadside unit.
[0059] 具体的, 车载单元与路边单元的连接建立之后, 就可以向该路边单元发送区域 地图获取请求, 其中, 区域地图获取请求是用于指示路边单元向车载单元发送
路边单元所在区域的地图数据的请求。 [0059] Specifically, after the connection between the onboard unit and the roadside unit is established, the area map acquisition request may be sent to the roadside unit, where the area map acquisition request is used to instruct the roadside unit to send to the onboard unit. A request for map data for the area where the roadside unit is located.
[0060] 步骤 S103, 所述车载单元接收所述路边单元发送的所述路边单元所在区域的地 图数据, 其中, 所述路边单元所在区域的地图数据是所述路边单元基于所述区 域地图获取请求进行获取, 并发送给所述车载单元的。 [0060] Step S103, the onboard unit receives map data of an area where the roadside unit is sent by the roadside unit, where map data of the area where the roadside unit is located is the roadside unit based on the The regional map acquisition request is acquired and sent to the onboard unit.
[0061] 具体的, 路边单元在接收到区域地图获取请求后, 就获取预存的路边单元所在 区域的地图数据, 并向车载单元发送该路边单元所在区域的地图数据。 [0061] Specifically, after receiving the area map acquisition request, the roadside unit acquires map data of the area where the pre-stored roadside unit is located, and transmits map data of the area where the roadside unit is located to the vehicle-mounted unit.
[0062] 需要说明的是, 本发明实施例的情景中, 路边单元中都预存了其本身所在区域 的地图数据。 例如, 如图 2所示, 区域 A中包括路边单元 1 (红绿灯) 、 路边单元 2 (路灯) 和路边单元 3 (便利店) , 这三个路边单元中预存的都是区域 A的地图 数据, 也就是说, 如果车载单元于路边单元 1、 路边单元 2或路边单元 3中的任一 路边单元连接后发送区域地图获取请求, 接收到的地图数据都是区域 A所示的地 图数据。 [0062] It should be noted that, in the scenario of the embodiment of the present invention, map data of an area in which the road itself is located is pre-stored in the roadside unit. For example, as shown in FIG. 2, the area A includes a roadside unit 1 (traffic light), a roadside unit 2 (street light), and a roadside unit 3 (convenience store), and all of the three roadside units are pre-stored in the area A. Map data, that is, if the onboard unit transmits a regional map acquisition request after any of the roadside unit 1, the roadside unit 2, or the roadside unit 3 is connected, the received map data is the area A Map data shown.
[0063] 可选的, 步骤 S103之后, 该方法还包括: [0063] Optionally, after step S103, the method further includes:
[0064] 所述车载单元通过显示设备输出所述地图数据。 [0064] The onboard unit outputs the map data through a display device.
[0065] 具体的, 车载单元接收到路边单元所在区域的地图数据后, 可以将该地图数据 输出出来, 例如将地图数据的图像数据显示在车载单元的显示屏幕上, 语音数 据通过耳机或者扬声器播放出来。 [0065] Specifically, after receiving the map data of the area where the roadside unit is located, the onboard unit may output the map data, for example, displaying image data of the map data on a display screen of the vehicle unit, and the voice data passes through the earphone or the speaker. Play it out.
[0066] 可选的, 所述地图数据存在对应的区域标识, 所述区域标识根据各区域的相对 位置关系规律地标记, 则所述车载单元通过显示设备输出所述地图数据具体可 以为: [0066] Optionally, the map data has a corresponding area identifier, and the area identifier is regularly marked according to the relative positional relationship of each area, and the onboard unit outputs the map data through the display device, which may be:
[0067] 所述车载单元根据预存的区域标识位置关系表, 确定与接收到的所述地图数据 对应的区域标识相邻的第一区域标识。 [0067] The onboard unit determines, according to the pre-stored area identifier position relation table, a first area identifier adjacent to the area identifier corresponding to the received map data.
[0068] 具体的, 地图数据存在对应的区域标识, 其中, 区域标识可以是根据预设的一 种能够反映个区域之间的相对位置关系的规律进行标识的。 例如, 如图 3所示的 是一种示例性的标识方式, 与区域 1相邻的 4个区域可以按顺吋针规律分别标记 为 11、 12、 13和 14, 与区域 1、 区域 12和区域 13都相邻的区域可以标记为 123, 以此类推。 [0068] Specifically, the map data has a corresponding area identifier, where the area identifier may be identified according to a preset rule that can reflect the relative positional relationship between the areas. For example, as shown in FIG. 3, an exemplary identification manner, four regions adjacent to the region 1 may be labeled as 11, 12, 13, and 14, respectively, with the region 1, the region 12, and Areas adjacent to area 13 may be labeled 123, and so on.
[0069] 区域标识位置关系表是反映区域标识与区域之间的位置关系的映射表, 该区域
标识位置关系表可以是预先存储在车载单元中的, 也可以是车载单元通过路边 单元获取到的, 具体不作限定。 车载单元通过区域标识位置关系表, 可以査找 与接收到的地图数据对应的区域标识相邻的第一区域标识。 [0069] The area identifier location relationship table is a mapping table reflecting the location relationship between the area identifier and the area, the area The identification position relationship table may be pre-stored in the vehicle-mounted unit, or may be acquired by the vehicle-mounted unit through the roadside unit, and is not specifically limited. The in-vehicle unit can search for the first area identifier adjacent to the area identifier corresponding to the received map data by using the area identifier position relationship table.
例如, 设区域标识位置关系表如表 1所示, 车载单元接收到的地图数据对应的 区域标识为 11, 则车载单元根据表 1可以确定与地图数据对应的区域标识 11相邻 的第一区域标识分别为 1、 112和 113。 For example, if the area identifier position relationship table is as shown in Table 1, the area identifier corresponding to the map data received by the vehicle unit is 11, and the vehicle unit can determine the first area adjacent to the area identifier 11 corresponding to the map data according to Table 1. The identifiers are 1, 112 and 113 respectively.
[0072] 所述车载单元检测预先获取到的至少一个地图数据对应的区域标识中是否存在 所述第一区域标识。 [0072] The onboard unit detects whether the first area identifier exists in the area identifier corresponding to the at least one map data acquired in advance.
[0073] 具体的, 在一种情景中, 车载单元之前已经获取到了其他区域的至少一个地图 数据, 那么车载单元可以在之前已经获取到的至少一个地图数据对应的区域标 识中査找是否存在第一区域标识。 仍使用上例, 设之前车载单元已经获取到的 至少一个地图数据分别对应的区域标识为 112、 124和 14, 与第一区域标识 1、 11 2和 113比较后可以发现, 区域标识 112是第一区域标识, 那么可以认为预先获取 到的至少一个地图数据对应的区域标识中存在所述第一区域标识。 [0073] Specifically, in one scenario, the onboard unit has previously acquired at least one map data of another area, and the onboard unit may search for the first area identifier corresponding to the at least one map data that has been previously acquired. Area ID. Still using the above example, the area identifiers corresponding to at least one map data that have been acquired by the in-vehicle unit are 112, 124, and 14, respectively, and can be found after comparing with the first area identifiers 1, 11 2 and 113, and the area identifier 112 is the first An area identifier may be considered to exist in the area identifier corresponding to the at least one map data acquired in advance.
[0074] 若存在, 则所述车载单元获取所述第一区域标识对应的地图数据按照接收到的 所述地图数据对应的区域标识与所述第一区域标识所指示的相对位置关系, 将 接收到的所述地图数据与所述第一区域标识对应的地图数据合成后输出。 [0074] if present, the onboard unit acquires the map data corresponding to the first area identifier according to the received relative positional relationship between the area identifier corresponding to the map data and the first area identifier, and receives The map data that is obtained is combined with the map data corresponding to the first area identifier and output.
[0075] 具体的, 当车载单元检测到预先获取到的至少一个地图数据对应的区域标识中
存在所述第一区域标识, 则可以在输出地图数据吋, 将第一区域标识对应的地 图数据和车载单元当前请求并获取到的路边单元所在区域的地图数据合成后进 行输出。 在合成吋, 可以根据接收到的地图数据对应的区域标识与第一区域标 识所指示的相对位置关系, 将地图数据进行合成。 [0075] Specifically, when the onboard unit detects the area identifier corresponding to the at least one map data acquired in advance, If the first area identifier is present, the map data corresponding to the first area identifier and the map data of the area where the roadside unit is currently requested and acquired by the onboard unit may be combined and output. In the synthesis, the map data may be synthesized according to the relative positional relationship indicated by the received area map and the first area identifier.
[0076] 例如, 车载单元中存在的第一区域标识为区域 B、 区域 C和区域 D, 当前车载单 元获取到的地图数据对应的区域标识为区域 A, 那么根据预设的区域标识反映的 地图数据的相对位置关系, 可以向用户输出如图 2所示的将区域 A、 区域 B、 区域 C和区域 D合成后的地图数据。 [0076] For example, the first area existing in the onboard unit is identified as area B, area C, and area D, and the area identifier corresponding to the map data acquired by the current vehicle unit is area A, and the map is reflected according to the preset area identifier. The relative positional relationship of the data, the map data obtained by combining the area A, the area B, the area C, and the area D as shown in FIG. 2 can be output to the user.
[0077] 可选的, 所述方法还包括: [0077] Optionally, the method further includes:
[0078] 当所述车载单元接收到用户输入的针对目标位置信息的导航指令后, 在所述地 图数据中査询是否存在所述目标位置信息。 [0078] After the onboard unit receives the navigation instruction for the target location information input by the user, it is queried in the map data whether the target location information exists.
[0079] 具体的, 车载单元在离线接收到地图数据后, 就可以结合地图数据和 GPS导航 ***对车辆进行导航。 当接收到用户输入的针对目标位置信息的导航指令后, 车载设备可以先在已经获取到的至少一个地图数据中査找是否存在用户输入的 目标位置信息。 具体实施中, 导航指令可以是用户对车载设备的导航按键的按 压操作、 对预设导航图标的手势操作或者对车载设备发出的语音指令等等, 这 里不作具体限定。 其中, 导航指令中包括了用户需要进行导航的目标位置信息 , 该目标位置信息可以包括道路名称、 标志物名称等等。 [0079] Specifically, after receiving the map data offline, the onboard unit can navigate the vehicle in combination with the map data and the GPS navigation system. After receiving the navigation instruction for the target location information input by the user, the in-vehicle device may first search for the target location information input by the user in the at least one map data that has been acquired. In a specific implementation, the navigation instruction may be a pressing operation of the navigation button of the in-vehicle device, a gesture operation on the preset navigation icon, or a voice command issued to the in-vehicle device, and the like, and is not specifically limited herein. The navigation instruction includes target location information that the user needs to navigate, and the target location information may include a road name, a marker name, and the like.
[0080] 若所述目标位置信息存在, 则所述车载单元根据所述地图数据, 规划并输出从 当前位置前往所述目标位置信息对应的位置的行车路线。 [0080] If the target location information exists, the onboard unit plans and outputs a driving route from a current location to a location corresponding to the target location information according to the map data.
[0081] 具体的, 车载单元在预先获取到的地图数据中査找到目标位置信息吋, 则可以 根据车载设备当前的位置以及获取到的地图数据来为用户规划行车路线并输出 [0081] Specifically, the onboard unit searches for the target location information in the map data acquired in advance, and can plan a driving route for the user according to the current location of the in-vehicle device and the acquired map data.
[0082] 具体实施中可以有两种情景, 第一种是目标位置信息与车载单元当前的位置均 处于同一区域中, 那么车载设备仅需调用车载单元当前所述区域的地图数据即 可对行车路线仅进行规划。 第二种是目标位置信息与车载单元当前的位置不处 于同一区域中, 那么车载单元需要先检测目标位置信息对应的地图数据与车载 单元当前的位置对应的地图数据是否可以合成一个连贯性的地图数据, 如果可
以, 则可以对行车路线仅进行规划, 否则则提示用户不能进行行车路线规划。 [0082] In the specific implementation, there may be two scenarios. The first one is that the target location information is in the same area as the current location of the onboard unit, and then the in-vehicle device only needs to call the map data of the current area of the onboard unit to drive the vehicle. The route is only planned. The second type is that the target location information is not in the same area as the current location of the vehicle-mounted unit, and then the vehicle-mounted unit needs to first detect whether the map data corresponding to the target location information and the map data corresponding to the current location of the vehicle-mounted unit can be combined into a coherent map. Data, if available Therefore, the driving route can be planned only, otherwise the user is prompted not to plan the driving route.
[0083] 示例性的, 在第二种情景中, 车载设备可以根据目标位置信息对应的地图数据 的区域标识以及车载单元当前的位置对应的地图数据的区域标识, 判断两者的 相对位置关系是否是相邻的, 如果是相邻的, 则直接根据相邻的位置关系所合 成的地图数据进行行车路线规划; 如果不是相邻的, 那么车载单元可以检测车 载单元中预先获取的至少一个地图数据中是否有将两者的地图数据连接在一起 的地图数据, 如果有则合成一个连贯性的地图数据, 根据该连贯性的地图数据 进行行车路线规划。 [0083] Illustratively, in the second scenario, the in-vehicle device can determine whether the relative positional relationship between the two is based on the area identifier of the map data corresponding to the target location information and the area identifier of the map data corresponding to the current location of the vehicle-mounted unit. If they are adjacent, the driving route planning is directly performed according to the map data synthesized by the adjacent positional relationship; if not adjacent, the onboard unit may detect at least one map data acquired in advance in the in-vehicle unit. Whether there is map data that connects the map data of the two, and if so, a coherent map data is synthesized, and the driving route planning is performed based on the coherent map data.
[0084] 可选的, 所述方法还包括: [0084] Optionally, the method further includes:
[0085] 所述车载单元向所述路边单元发送针对所述地图数据的交通数据更新请求, 以 使所述路边单元获取所在区域的车辆状态信息, 根据所述车辆状态信息生成所 在区域最新的交通数据, 并发送给所述车载单元。 [0085] the onboard unit transmits a traffic data update request for the map data to the roadside unit, so that the roadside unit acquires vehicle state information of a region, and generates a latest region according to the vehicle state information. Traffic data is sent to the onboard unit.
[0086] 具体的, 地图数据中可以包括交通数据, 可以用于在地图中指示道路的通畅状 态、 车流量、 交通指示灯情况等的数据。 通常, 路边单元预存的地图数据一般 是之前就获取到的, 因此交通数据并未进行更新。 当车载单元接收到路边单元 所在区域的地图数据后, 可以向路边单元发送交通数据更新请求, 路边单元接 收到交通数据更新请求后, 可以获取其所在区域的车辆状态信息, 然后根据车 辆状态信息生成路边单元所在区域最新的交通数据发送给车在单元。 其中, 车 辆状态信息可以包括车辆位置、 车辆速度、 道路车辆密度、 道路车流量等等, 具体的获取方式可以通过车联网接收该区域中的车辆或者路边单元发送的车辆 状态信息。 [0086] Specifically, the map data may include traffic data, and may be used to indicate data of a road's patency state, traffic flow, traffic indicator status, and the like in the map. Usually, the map data pre-stored by the roadside unit is generally acquired before, so the traffic data is not updated. After receiving the map data of the area where the roadside unit is located, the vehicle unit may send a traffic data update request to the roadside unit, and after receiving the traffic data update request, the roadside unit may acquire the vehicle state information of the area in which it is located, and then according to the vehicle. The state information generates the latest traffic data in the area where the roadside unit is located and sends it to the vehicle in the unit. The vehicle status information may include a vehicle position, a vehicle speed, a road vehicle density, a road traffic volume, and the like, and the specific acquisition manner may receive the vehicle status information sent by the vehicle or the roadside unit in the area through the vehicle network.
[0087] 所述车载单元接收所述路边单元发送的所述最新的交通数据, 并根据所述最新 的交通数据, 更新所述地图数据。 And [0087] the onboard unit receives the latest traffic data sent by the roadside unit, and updates the map data according to the latest traffic data.
[0088] 具体的, 车载单元接收到路边单元发送的该区域最新的交通数据后, 可以对获 取到的该区域的地图数据进行更新。 [0088] Specifically, after receiving the latest traffic data of the area sent by the roadside unit, the onboard unit may update the acquired map data of the area.
[0089] 本发明实施例通过车载单元向路边单元发送连接请求, 并与所述路边单元通过 车联网建立连接, 然后所述车载单元通过所述车联网向所述路边单元发送区域 地图获取请求, 所述路边单元基于所述区域地图获取请求获取路边单元所在区
域的地图数据, 并发送给所述车载单元, 所述车载单元通过所述车联网接收所 述路边单元发送所述路边单元所在区域的地图数据, 可以解决车载设备在无移 动网络情况下的地图获取问题。 [0089] The embodiment of the present invention sends a connection request to the roadside unit through the vehicle-mounted unit, and establishes a connection with the roadside unit through the vehicle network, and then the vehicle-mounted unit sends the area map to the roadside unit through the vehicle network. Acquiring a request, the roadside unit acquiring the area where the roadside unit is located based on the area map acquisition request The map data of the domain is sent to the onboard unit, and the onboard unit receives the map data of the area where the roadside unit is located by the roadside unit through the vehicle network, and can solve the problem that the in-vehicle device has no mobile network. Map gets the problem.
[0090] 图 4是本发明实施例提供的一种车载单元的结构示意图, 包括: 4 is a schematic structural diagram of an onboard unit according to an embodiment of the present invention, including:
[0091] 连接建立模块 410, 用于车载单元向路边单元发送连接请求, 并与所述路边单 元建立连接; [0091] The connection establishing module 410 is configured to send, by the onboard unit, a connection request to the roadside unit, and establish a connection with the roadside unit;
[0092] 第一发送模块 420, 用于所述车载单元向所述路边单元发送区域地图获取请求 [0092] The first sending module 420 is configured to send, by the onboard unit, an area map obtaining request to the roadside unit
[0093] 地图接收模块 430, 用于所述车载单元接收所述路边单元发送的所述路边单元 所在区域的地图数据, 其中, 所述路边单元所在区域的地图数据是所述路边单 元基于所述区域地图获取请求进行获取, 并发送给所述车载单元的。 [0093] The map receiving module 430 is configured to receive, by the onboard unit, map data of an area where the roadside unit is sent by the roadside unit, where map data of the area where the roadside unit is located is the roadside The unit acquires based on the area map acquisition request and sends it to the onboard unit.
[0094] 可选的, 所述车载单元还包括: [0094] Optionally, the onboard unit further includes:
[0095] 地图输出模块 440, 用于所述车载单元通过显示设备输出所述地图数据。 [0095] The map output module 440 is configured to output the map data by the display unit through the display unit.
[0096] 可选的, 所述地图数据存在对应的区域标识, 所述区域标识根据各区域的相对 位置关系规律地标记; [0096] Optionally, the map data has a corresponding area identifier, and the area identifier is regularly marked according to a relative positional relationship of each area;
[0097] 所述地图输出模块 440包括标识确定单元 441、 判断单元 442和输出单元 443, 如 图 5所示, 其中: [0097] The map output module 440 includes an identification determining unit 441, a determining unit 442, and an output unit 443, as shown in FIG. 5, wherein:
[0098] 标识确定单元 441, 用于所述车载单元根据预存的区域标识位置关系表, 确定 与接收到的所述地图数据对应的区域标识相邻的第一区域标识; [0098] The identifier determining unit 441 is configured to determine, according to the pre-stored area identifier position relationship table, the first area identifier adjacent to the area identifier corresponding to the received map data;
[0099] 判断单元 442, 用于所述车载单元检测预先获取到的至少一个地图数据对应的 区域标识中是否存在所述第一区域标识; [0099] The determining unit 442 is configured to detect, by the onboard component, whether the first area identifier exists in an area identifier corresponding to the at least one map data that is acquired in advance;
[0100] 输出单元 443, 用于若存在, 则所述车载单元获取所述第一区域标识对应的地 图数据按照接收到的所述地图数据对应的区域标识与所述第一区域标识所指示 的相对位置关系, 将接收到的所述地图数据与所述第一区域标识对应的地图数 据合成后输出。 [0100] The output unit 443 is configured to: if yes, the onboard unit acquires the map data corresponding to the first area identifier according to the received area identifier corresponding to the map data and the first area identifier The relative positional relationship is obtained by synthesizing the received map data and the map data corresponding to the first area identifier.
[0101] 可选的, 所述车载单元还包括: [0101] Optionally, the onboard unit further includes:
[0102] 査询模块 450, 用于当所述车载单元接收到用户输入的针对目标位置信息的导 航指令后, 在所述地图数据中査询是否存在所述目标位置信息;
[0103] 路线规划模块 460, 用于若所述目标位置信息存在, 则所述车载单元根据所述 地图数据, 规划并输出从当前位置前往所述目标位置信息对应的位置的行车路 线。 [0102] The query module 450 is configured to: when the onboard unit receives the navigation instruction for the target location information input by the user, query the map data whether the target location information exists; [0103] The route planning module 460 is configured to: if the target location information exists, the onboard unit plans and outputs a driving route from a current location to a location corresponding to the target location information according to the map data.
[0104] 可选的, 所述车载单元还包括: [0104] Optionally, the onboard unit further includes:
[0105] 第二发送模块 470, 用于所述车载单元向所述路边单元发送针对所述地图数据 的交通数据更新请求, 以使所述路边单元获取所在区域的车辆状态信息, 根据 所述车辆状态信息生成所在区域最新的交通数据, 并发送给所述车载单元; [0105] The second sending module 470 is configured to send, by the onboard unit, a traffic data update request for the map data to the roadside unit, so that the roadside unit acquires vehicle state information of a region, according to the The vehicle status information generates the latest traffic data of the area in which it is located, and transmits the traffic data to the onboard unit;
[0106] 更新模块 480, 用于所述车载单元接收所述路边单元发送的所述最新的交通数 据, 并根据所述最新的交通数据, 更新所述地图数据。 [0106] The update module 480 is configured to receive, by the onboard unit, the latest traffic data sent by the roadside unit, and update the map data according to the latest traffic data.
[0107] 本发明实施例通过车载单元向路边单元发送连接请求, 并与所述路边单元通过 车联网建立连接, 然后所述车载单元通过所述车联网向所述路边单元发送区域 地图获取请求, 所述路边单元基于所述区域地图获取请求获取路边单元所在区 域的地图数据, 并发送给所述车载单元, 所述车载单元通过所述车联网接收所 述路边单元发送所述路边单元所在区域的地图数据, 可以解决车载设备在无移 动网络情况下的地图获取问题。 [0107] The embodiment of the present invention sends a connection request to the roadside unit through the vehicle-mounted unit, and establishes a connection with the roadside unit through the vehicle network, and then the vehicle-mounted unit sends the area map to the roadside unit through the vehicle network. Obtaining a request, the roadside unit acquires map data of an area where the roadside unit is located based on the area map acquisition request, and sends the map data to the vehicle-mounted unit, and the vehicle-mounted unit receives the roadside unit transmission station by using the vehicle network The map data of the area where the roadside unit is located can solve the problem of map acquisition of the in-vehicle device without the mobile network.
[0108] 图 6是本发明实施例提供的另一种车载单元的结构示意图。 如图 6所示, 该车载 单元包括处理器 61、 存储器 62以及通信接口 63。 处理器 61连接到存储器 62和通 信接口 63, 例如处理器 61可以通过总线连接到存储器 62和通信接口 63。 FIG. 6 is a schematic structural diagram of another vehicle-mounted unit according to an embodiment of the present invention. As shown in FIG. 6, the onboard unit includes a processor 61, a memory 62, and a communication interface 63. The processor 61 is connected to a memory 62 and a communication interface 63, for example, the processor 61 can be connected to the memory 62 and the communication interface 63 via a bus.
[0109] 处理器 61被配置为支持车载单元执行上述方法中相应的功能。 该处理器 61可以 是中央处理器 (英文: central processing unit, [0109] The processor 61 is configured to support the onboard unit to perform the corresponding function in the above method. The processor 61 can be a central processing unit (English: central processing unit,
CPU) , 网络处理器 (英文: network processor, NP) , 硬件芯片或者其任意组 合。 上述硬件芯片可以是专用集成电路 (英文: application-specific integrated circuit, ASIC) , 可编程逻辑器件 (英文: programmable logic device, PLD) 或 其组合。 上述 PLD可以是复杂可编程逻辑器件 (英文: complex programmable logic device, CPLD) , 现场可编程逻辑门阵列 (英文: field-programmable gate array , FPGA) , 通用阵列逻辑 (英文: generic array logic, GAL) 或其任意组合 CPU), network processor (English: network processor, NP), hardware chip or any combination thereof. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), or a general array logic (GAL). Or any combination thereof
[0110] 存储器 62存储器用于存储地图数据、 交通数据等。 存储器 62可以包括易失性存
储器 (英文: volatile memory) , 例如随机存取存储器 (英文: random-access memory , 缩写: RAM) ; 存储器 62也可以包括非易失性存储器 (英文: non-vol atile memory) , 例如只读存储器 (英文: read-only memory, 缩写: ROM) , 快闪存储器 (英文: flash memory) , 硬盘 (英文: hard disk drive, 缩写: HDD ) 或固态硬盘 (英文: solid-state drive , 缩写: SSD) ; 存储器 62还可以包括上 述种类的存储器的组合。 [0110] The memory 62 is used to store map data, traffic data, and the like. Memory 62 can include volatile memory Memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); memory 62 may also include non-volatile memory (English: non-vol atile memory), such as read-only Memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state drive, abbreviation: SSD The memory 62 may also include a combination of the above types of memories.
[0111] 通信接口 63用于与路边单元无线连接。 [0111] The communication interface 63 is for wireless connection with the roadside unit.
[0112] 处理器 61可以执行以下操作: [0112] The processor 61 can perform the following operations:
[0113] 通过通信接口 63向路边单元发送连接请求, 并与所述路边单元建立连接; [0113] transmitting a connection request to the roadside unit through the communication interface 63, and establishing a connection with the roadside unit;
[0114] 通过通信接口 63向所述路边单元发送区域地图获取请求; [0114] transmitting an area map acquisition request to the roadside unit through the communication interface 63;
[0115] 通过通信接口 63接收所述路边单元发送的所述路边单元所在区域的地图数据, 其中, 所述路边单元所在区域的地图数据是所述路边单元基于所述区域地图获 取请求进行获取, 并发送给所述车载单元的。 The map data of the area where the roadside unit is sent by the roadside unit is received by the communication interface 63, wherein the map data of the area where the roadside unit is located is obtained by the roadside unit based on the area map. Requesting acquisition and sending to the onboard unit.
[0116] 可选的, 处理器 61接收所述路边单元发送的所述路边单元所在区域的地图数据 之后, 还用于: [0116] Optionally, after receiving the map data of the area where the roadside unit is sent by the roadside unit, the processor 61 is further configured to:
[0117] 通过显示设备输出所述地图数据。 [0117] The map data is output by a display device.
[0118] 可选的, 所述地图数据存在对应的区域标识, 所述区域标识根据各区域的相对 位置关系规律地标记; [0118] Optionally, the map data has a corresponding area identifier, and the area identifier is regularly marked according to a relative position relationship of each area;
[0119] 处理器 61通过显示设备输出所述地图数据吋, 具体用于: [0119] The processor 61 outputs the map data by using a display device, specifically for:
[0120] 根据预存的区域标识位置关系表, 确定与接收到的所述地图数据对应的区域标 识相邻的第一区域标识; [0120] determining, according to the pre-stored area identifier location relationship table, a first area identifier adjacent to the area identifier corresponding to the received map data;
[0121] 检测预先获取到的至少一个地图数据对应的区域标识中是否存在所述第一区域 标识; [0121] detecting whether the first area identifier exists in an area identifier corresponding to the at least one map data acquired in advance;
[0122] 若存在, 则获取所述第一区域标识对应的地图数据按照接收到的所述地图数据 对应的区域标识与所述第一区域标识所指示的相对位置关系, 将接收到的所述 地图数据与所述第一区域标识对应的地图数据合成后输出。 [0122] if yes, acquiring the map data corresponding to the first area identifier according to the received relative positional relationship between the area identifier corresponding to the map data and the first area identifier, and the received The map data corresponding to the first area identifier is synthesized and output.
[0123] 可选的, 处理器 61还用于: [0123] Optionally, the processor 61 is further configured to:
[0124] 当所述车载单元接收到用户输入的针对目标位置信息的导航指令后, 在所述地
图数据中査询是否存在所述目标位置信息; [0124] after the onboard unit receives the navigation instruction for the target location information input by the user, Querying whether the target location information exists in the graph data;
[0125] 若所述目标位置信息存在, 则所述车载单元根据所述地图数据, 规划并输出从 当前位置前往所述目标位置信息对应的位置的行车路线。 [0125] If the target location information exists, the onboard unit plans and outputs a driving route from a current location to a location corresponding to the target location information according to the map data.
[0126] 可选的, 处理器 61还用于: [0126] Optionally, the processor 61 is further configured to:
[0127] 通过通信接口 63向所述路边单元发送针对所述地图数据的交通数据更新请求, 以使所述路边单元获取所在区域的车辆状态信息, 根据所述车辆状态信息生成 所在区域最新的交通数据, 并发送给所述车载单元; [0127] transmitting, by the communication interface 63, a traffic data update request for the map data to the roadside unit, so that the roadside unit acquires vehicle state information of a region, and generates a latest region according to the vehicle state information. Traffic data is sent to the onboard unit;
[0128] 通过通信接口 63接收所述路边单元发送的所述最新的交通数据, 并根据所述最 新的交通数据, 更新所述地图数据。 [0128] receiving the latest traffic data sent by the roadside unit through the communication interface 63, and updating the map data according to the latest traffic data.
[0129] 本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程, 是可 以通过计算机程序来指令相关的硬件来完成, 所述的程序可存储于一计算机可 读取存储介质中, 该程序在执行吋, 可包括如上述各方法的实施例的流程。 其 中, 所述的存储介质可为磁碟、 光盘、 只读存储记忆体 (Read-Only [0129] Those skilled in the art can understand that all or part of the process of implementing the above embodiments may be completed by a computer program to instruct related hardware, and the program may be stored in a computer readable storage medium. The program, after execution, may include the flow of an embodiment of the methods as described above. The storage medium may be a magnetic disk, an optical disk, or a read-only storage memory (Read-Only)
Memory , ROM) 或随机存储记忆体 (Random Access Memory , RAM) 等。 Memory, ROM) or Random Access Memory (RAM).
[0130] 以上所揭露的仅为本发明较佳实施例而已, 当然不能以此来限定本发明之权利 范围, 因此依本发明权利要求所作的等同变化, 仍属本发明所涵盖的范围。 技术问题 The above disclosure is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes made by the claims of the present invention are still within the scope of the present invention. technical problem
问题的解决方案 Problem solution
发明的有益效果
Advantageous effects of the invention
Claims
[权利要求 1] 一种离线地图获取方法, 其特征在于, 所述方法包括: [Attachment 1] An offline map acquisition method, the method comprising:
车载单元向路边单元发送连接请求, 并与所述路边单元建立连接; 所述车载单元向所述路边单元发送区域地图获取请求; The vehicle unit sends a connection request to the roadside unit and establishes a connection with the roadside unit; the vehicle unit sends a regional map acquisition request to the roadside unit;
所述车载单元接收所述路边单元发送的所述路边单元所在区域的地图 数据, 其中, 所述路边单元所在区域的地图数据是所述路边单元基于 所述区域地图获取请求进行获取, 并发送给所述车载单元的。 The vehicle-mounted unit receives the map data of the area where the roadside unit is sent by the roadside unit, where the map data of the area where the roadside unit is located is obtained by the roadside unit based on the area map acquisition request. And sent to the onboard unit.
[权利要求 2] 如权利要求 1所述的方法, 其特征在于, 所述车载单元接收所述路边 单元发送的所述路边单元所在区域的地图数据之后, 还包括: 所述车载单元通过显示设备输出所述地图数据。 [Claim 2] The method according to claim 1, wherein, after the onboard unit receives the map data of the area where the roadside unit is sent by the roadside unit, the method further includes: The display device outputs the map data.
[权利要求 3] 如权利要求 2所述的方法, 其特征在于, 所述地图数据存在对应的区 域标识, 所述区域标识根据各区域的相对位置关系规律地标记; 所述车载单元通过显示设备输出所述地图数据包括: [Claim 3] The method according to claim 2, wherein the map data has a corresponding area identifier, and the area identifier is regularly marked according to a relative positional relationship of each area; Outputting the map data includes:
所述车载单元根据预存的区域标识位置关系表, 确定与接收到的所述 地图数据对应的区域标识相邻的第一区域标识; 所述车载单元检测预先获取到的至少一个地图数据对应的区域标识中 是否存在所述第一区域标识; Determining, by the onboard unit, the first area identifier adjacent to the area identifier corresponding to the received map data according to the pre-stored area identifier position relationship table; the onboard unit detecting the area corresponding to the at least one map data acquired in advance Whether the first area identifier exists in the identifier;
若存在, 则所述车载单元获取所述第一区域标识对应的地图数据按照 接收到的所述地图数据对应的区域标识与所述第一区域标识所指示的 相对位置关系, 将接收到的所述地图数据与所述第一区域标识对应的 地图数据合成后输出。 If yes, the onboard unit acquires the map data corresponding to the first area identifier according to the received relative positional relationship between the area identifier corresponding to the map data and the first area identifier, and the received location The map data corresponding to the first area identifier is synthesized and output.
[权利要求 4] 如权利要求 1所述的方法, 其特征在于, 所述方法还包括: [Claim 4] The method according to claim 1, wherein the method further comprises:
当所述车载单元接收到用户输入的针对目标位置信息的导航指令后, 在所述地图数据中査询是否存在所述目标位置信息; After the onboard unit receives the navigation instruction for the target location information input by the user, querying, in the map data, whether the target location information exists;
若所述目标位置信息存在, 则所述车载单元根据所述地图数据, 规划
并输出从当前位置前往所述目标位置信息对应的位置的行车路线。 If the target location information exists, the onboard unit plans according to the map data And driving the driving route from the current position to the position corresponding to the target position information.
[权利要求 5] 如权利要求 1所述的方法, 其特征在于, 所述方法还包括: [Claim 5] The method according to claim 1, wherein the method further comprises:
所述车载单元向所述路边单元发送针对所述地图数据的交通数据更新 请求, 以使所述路边单元获取所在区域的车辆状态信息, 根据所述车 辆状态信息生成所在区域最新的交通数据, 并发送给所述车载单元; 所述车载单元接收所述路边单元发送的所述最新的交通数据, 并根据 所述最新的交通数据, 更新所述地图数据。 The vehicle-mounted unit sends a traffic data update request for the map data to the roadside unit, so that the roadside unit acquires vehicle state information of a region, and generates latest traffic data of the region according to the vehicle state information. And transmitting to the onboard unit; the onboard unit receives the latest traffic data sent by the roadside unit, and updates the map data according to the latest traffic data.
[权利要求 6] —种车载单元, 其特征在于, 所述车载单元包括: [Claim 6] The vehicle-mounted unit is characterized in that:
连接建立模块, 用于车载单元向路边单元发送连接请求, 并与所述路 边单元建立连接; a connection establishing module, configured to send a connection request to the roadside unit by the vehicle unit, and establish a connection with the roadside unit;
第一发送模块, 用于所述车载单元向所述路边单元发送区域地图获取 请求; a first sending module, configured to send, by the onboard unit, an area map obtaining request to the roadside unit;
地图接收模块, 用于所述车载单元接收所述路边单元发送的所述路边 单元所在区域的地图数据, 其中, 所述路边单元所在区域的地图数据 是所述路边单元基于所述区域地图获取请求进行获取, 并发送给所述 车载单元的。 a map receiving module, configured to receive, by the onboard unit, map data of an area where the roadside unit is sent by the roadside unit, where map data of the area where the roadside unit is located is the roadside unit based on the The regional map acquisition request is acquired and sent to the onboard unit.
[权利要求 7] 如权利要求 6所述的车载单元, 其特征在于, 所述车载单元还包括: 地图输出模块, 用于所述车载单元通过显示设备输出所述地图数据。 The vehicle-mounted unit according to claim 6, wherein the onboard unit further comprises: a map output module, wherein the onboard unit outputs the map data through a display device.
[权利要求 8] 如权利要求 6所述的车载单元, 其特征在于, 所述地图数据存在对应 的区域标识, 所述区域标识根据各区域的相对位置关系规律地标记; 所述地图输出模块包括: The vehicle-mounted unit according to claim 6, wherein the map data has a corresponding area identifier, and the area identifier is regularly marked according to a relative positional relationship of each area; the map output module includes :
标识确定单元, 用于所述车载单元根据预存的区域标识位置关系表, 确定与接收到的所述地图数据对应的区域标识相邻的第一区域标识; 判断单元, 用于所述车载单元检测预先获取到的至少一个地图数据对
应的区域标识中是否存在所述第一区域标识; An identifier determining unit, configured to determine, by the in-vehicle unit, a first area identifier adjacent to the area identifier corresponding to the received map data according to the pre-stored area identifier position relationship table; and a determining unit, configured to detect the in-vehicle unit At least one map data pair acquired in advance Whether the first area identifier exists in the area identifier of the area;
输出单元, 用于若存在, 则所述车载单元获取所述第一区域标识对应 的地图数据按照接收到的所述地图数据对应的区域标识与所述第一区 域标识所指示的相对位置关系, 将接收到的所述地图数据与所述第一 区域标识对应的地图数据合成后输出。 And an output unit, configured to acquire the relative positional relationship between the area identifier corresponding to the received map data and the first area identifier according to the received map data, if yes, And synthesizing the received map data and the map data corresponding to the first area identifier, and outputting the map data.
[权利要求 9] 如权利要求 6所述的车载单元, 其特征在于, 所述车载单元还包括: 査询模块, 用于当所述车载单元接收到用户输入的针对目标位置信息 的导航指令后, 在所述地图数据中査询是否存在所述目标位置信息; 路线规划模块, 用于若所述目标位置信息存在, 则所述车载单元根据 所述地图数据, 规划并输出从当前位置前往所述目标位置信息对应的 位置的行车路线。 The vehicle-mounted unit according to claim 6, wherein the on-board unit further comprises: a query module, configured to: when the on-board unit receives a navigation instruction for target location information input by a user, Querying, in the map data, whether the target location information exists; the route planning module, configured to: if the target location information exists, the onboard unit plans and outputs the current location from the current location according to the map data The driving route of the location corresponding to the target location information.
[权利要求 10] 如权利要求 6所述的车载单元, 其特征在于, 所述车载单元还包括: 第二发送模块, 用于所述车载单元向所述路边单元发送针对所述地图 数据的交通数据更新请求, 以使所述路边单元获取所在区域的车辆状 态信息, 根据所述车辆状态信息生成所在区域最新的交通数据, 并发 送给所述车载单元; The vehicle-mounted unit according to claim 6, wherein the on-board unit further includes: a second transmitting module, configured to send, by the onboard unit, the map data to the roadside unit a traffic data update request, so that the roadside unit acquires vehicle state information of a region, generates latest traffic data of the region according to the vehicle state information, and sends the traffic data to the onboard unit;
更新模块, 用于所述车载单元接收所述路边单元发送的所述最新的交 通数据, 并根据所述最新的交通数据, 更新所述地图数据。
And an update module, configured to receive, by the onboard unit, the latest traffic data sent by the roadside unit, and update the map data according to the latest traffic data.
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