CN113448973A - Map data updating method, server, vehicle machine and storage medium - Google Patents
Map data updating method, server, vehicle machine and storage medium Download PDFInfo
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- CN113448973A CN113448973A CN202010227907.7A CN202010227907A CN113448973A CN 113448973 A CN113448973 A CN 113448973A CN 202010227907 A CN202010227907 A CN 202010227907A CN 113448973 A CN113448973 A CN 113448973A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
- G06F16/2379—Updates performed during online database operations; commit processing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
Abstract
The application provides a map data updating method, a server, a vehicle machine and a storage medium, wherein the method comprises the following steps: acquiring the driving information of the vehicle, wherein the driving information comprises the current position, the driving speed and the driving direction of the vehicle; determining a tile list required by the vehicle according to the driving information; further processing and extracting map data in a tile list in the target NDS map data to generate target data, wherein the target NDS map data are map data meeting preset conditions; and sending the target data to the vehicle so as to update the map data of the tile list in the vehicle into the target data. The updating of the map data in the vehicle is realized, and the efficiency of updating the map data by the vehicle is improved.
Description
Technical Field
The present application relates to the field of navigation map technologies, and in particular, to a map data updating method, a server, a vehicle machine, and a storage medium.
Background
The Navigation Data Standard (NDS) is widely used in mainstream car factories as a global Navigation map physical format, and with the increasing role of Navigation map Data in the vehicle driving assistance process, especially with the emergence of a series of new application scenarios such as Advanced Driver Assistance Systems Interface Specifications (ADASIS) of Advanced driving assistance Systems, the requirements of car factories on the freshness of map Data are increasing, how to quickly send the latest NDS map Data to a vehicle and meet customer requirements is a subject that various map manufacturers need intensive research.
In the prior art, a server is usually used to differentiate the latest full-scale NDS map data compiled by a map manufacturer from the previous full-scale NDS map data to obtain a differential data packet, and then the differential data packet is sent to a vehicle end of a vehicle, and the vehicle end updates the differential data packet into the map data of the local machine and combines the differential data packet with the map data of the local machine, so as to obtain the latest NDS map data, thereby updating the map data in the vehicle.
However, in the prior art, the map data in the vehicle is updated in a manner that the vehicle is required to use the full amount of map data as a reference map and then update the differential data packet to the map data in the vehicle, so that the updating efficiency is low.
Disclosure of Invention
The application provides a map data updating method, a server, a vehicle machine and a storage medium, so that the map data in a vehicle can be updated, the efficiency of updating the map data by the vehicle can be improved, the vehicle is not required to store the whole map data, and the storage space of the vehicle is saved.
In a first aspect, an embodiment of the present application provides a map data updating method, including:
acquiring the driving information of the vehicle, wherein the driving information comprises the current position, the driving direction and the driving speed of the vehicle;
determining a tile list required by the vehicle according to the driving information;
processing and extracting map data in a tile list in the target navigation data standard NDS map data to generate target data, wherein the target NDS map data are map data meeting preset conditions;
and sending the target data to the vehicle so as to update the map data of the tile list in the vehicle into the target data.
In the embodiment of the application, the tile list required by the vehicle is determined according to the driving information, the map data in the tile list in the target NDS map data is processed and extracted to generate the target data, so that the vehicle updates the map data in the tile list in the vehicle into the target data, the map data in the vehicle is updated, the map data in the tile list in the target NDS map data is only extracted and processed, and the map data in the tile list in the vehicle is updated, the efficiency of updating the map data by the vehicle is improved, a large amount of calculation is avoided, and compared with the prior art that the vehicle needs to store the whole amount of map data, the storage space of the vehicle is saved.
In a second aspect, an embodiment of the present application provides a map data updating method, which can be applied to a car machine, and includes:
sending the driving information of the vehicle to a server, wherein the driving information comprises the current position, the driving speed and the driving direction of the vehicle, so that the server determines a tile list required by the vehicle according to the driving information, processes and extracts map data in the tile list in target NDS map data to generate target data, the target NDS map data is map data meeting preset conditions, and the target data is sent to the vehicle; receiving target data sent by a server; the map data of the tile list in the vehicle is updated to target data.
The apparatus, the electronic device, the computer-readable storage medium, and the computer program product provided in the embodiments of the present application are described below, and contents and effects thereof may refer to the map data updating method provided in the embodiments of the present application, and are not described again.
In a third aspect, an embodiment of the present application provides a map data updating apparatus, including:
the system comprises an acquisition module, a display module and a control module, wherein the acquisition module is used for acquiring the running information of a vehicle, and the running information comprises the current position, the running speed and the running direction of the vehicle;
the first determining module is used for determining a tile list required by the vehicle according to the driving information;
the processing module is used for processing and extracting map data in a tile list in the target navigation data standard NDS map data to generate target data, wherein the target NDS map data are map data meeting preset conditions;
the first sending module is used for sending the target data to the vehicle so as to update the map data of the tile list in the vehicle into the target data.
In a fourth aspect, an embodiment of the present application provides a map data updating apparatus, including:
the second sending module is used for sending the driving information of the vehicle to the server, wherein the driving information comprises the current position, the driving speed and the driving direction of the vehicle, so that the server determines a tile list required by the vehicle according to the driving information, processes and extracts the map data in the tile list in the target NDS map data to generate target data, and the target NDS map data are map data meeting preset conditions and send the target data to the vehicle;
the receiving module is used for receiving the target data sent by the server;
and the updating module is used for updating the map data of the tile list in the vehicle into target data.
In a fifth aspect, an embodiment of the present application provides a server:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method as provided by the first aspect or the first aspect realizable manner.
In a sixth aspect, an embodiment of the present application provides a car machine:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method as provided by the second aspect or an implementable manner of the second aspect.
In a seventh aspect, embodiments of the present application provide a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method as provided by the first aspect or the first aspect implementable manner, or the method as provided by the second aspect or the second aspect implementable manner.
In an eighth aspect, an embodiment of the present application provides a computer program product, including: executable instructions for implementing a method as provided in the first aspect or the first aspect alternatives, or a method as provided in the second aspect or the second aspect alternatives.
According to the map data updating method, the server, the vehicle machine and the storage medium, the driving information of the vehicle is obtained, and the driving information comprises the current position, the driving speed and the driving direction of the vehicle; then determining a tile list required by the vehicle according to the driving information; further processing and extracting map data in a tile list in the target navigation data standard NDS map data to generate target data, wherein the target NDS map data are map data meeting preset conditions; and finally, sending the target data to the vehicle so as to update the map data of the tile list in the vehicle into the target data. In the embodiment of the application, the tile list required by the vehicle is determined according to the driving information, the map data in the tile list in the target NDS map data is processed and extracted, the target data is generated, so that the vehicle updates the map data in the tile list in the vehicle into the target data, the map data in the vehicle is updated, and only the map data in the tile list in the target NDS map data is extracted and processed, and the map data in the tile list in the vehicle is updated, so that the efficiency of updating the map data by the vehicle is improved, a large amount of calculation is avoided, and compared with the prior art that the vehicle needs to store the whole amount of map data, the storage space of the vehicle is saved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a diagram of an exemplary application scenario provided by an embodiment of the present application;
fig. 2 is a schematic flowchart of a map data updating method according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a tile list provided by an embodiment of the present application;
FIG. 4 is a block diagram of a tile list according to another embodiment of the present application;
FIG. 5 is a schematic diagram of an orientation coordinate system provided by an embodiment of the present application;
FIG. 6 is a schematic diagram of a tile list provided by yet another embodiment of the present application;
fig. 7 is a schematic structural diagram of a map data updating apparatus according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a map data updating apparatus according to another embodiment of the present application;
fig. 9 is a schematic structural diagram of a server provided in an embodiment of the present application;
fig. 10 is a schematic structural diagram of a vehicle machine provided in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
With the development of the automatic driving technology, the requirement on the freshness of map data is higher and higher, and how to rapidly issue the latest NDS map data to a vehicle and meet the customer requirements is a subject of intensive research required by each map manufacturer. In the prior art, a server generally performs a difference between the latest full-size NDS map data and the previous full-size NDS map data to obtain a differential data packet, and then sends the differential data packet to a vehicle end of a vehicle, and the vehicle end updates the differential data packet into the map data of the local machine and combines the differential data packet with the map data of the local machine, so as to obtain the latest NDS map data, thereby updating the map data in the vehicle, and the updating efficiency is low. In order to solve the foregoing technical problem, an embodiment of the present application provides a map data updating method, a server, a car machine, and a storage medium.
The map data updating method, the server, the vehicle machine and the storage medium provided by the embodiment of the application have the inventive concept that in order to avoid the need of storing the full amount of NDS map data by a vehicle, a tile list required by the vehicle can be determined according to the vehicle driving information, and the full amount of map data does not need to be stored by only updating the map data in the tile list, so that the storage space of the vehicle is saved; and a large amount of calculation can be avoided, and the efficiency of updating the map data by the vehicle is improved.
An exemplary application scenario of the embodiments of the present application is described below.
The map data updating method provided by the embodiment of the application can be executed by the map data updating device provided by the embodiment of the application. Fig. 1 is an exemplary application scenario diagram provided by an embodiment of the present application, and as shown in fig. 1, the map data updating method provided by the embodiment of the present application may be applied to a server 11, where there is data communication between the server 11 and a vehicle 12, the server 11 obtains driving information of the vehicle through the vehicle 12, and determines a tile list required by the vehicle according to the driving information, further processes and extracts map data in the tile list in target NDS map data, generates target data, and sends the target data to the vehicle 12, and the vehicle 12 updates the map information in the tile list in the vehicle according to the target data. The type of the server and the type of the vehicle are not limited in the embodiments of the present application.
Fig. 2 is a schematic flowchart of a map data updating method according to an embodiment of the present application, where the method may be executed by a map data updating apparatus, and the apparatus may be implemented by software and/or hardware, for example: the apparatus may be a part or all of a server, and the following describes a map data updating method with the server as an execution subject, as shown in fig. 2, the map data updating method provided in the embodiment of the present application may include:
step S101: the driving information of the vehicle is acquired.
The server acquires the driving information of the vehicle, and may acquire the driving information by receiving the driving information sent by the vehicle to the server, and the driving information of the vehicle may include information such as a current position, a driving speed, and a driving direction of the vehicle, which is not limited in this embodiment of the application. The embodiment of the application does not limit the triggering condition for the vehicle to send the driving information to the server, and in a possible implementation, if the tile data of the preset distance in front of the driving road of the vehicle is missing, the vehicle sends the driving information of the vehicle to the server; in another possible embodiment, if the update time of the map data in the vehicle exceeds the preset time from the last update of the map data, the driving information of the vehicle is sent to the server; in yet another possible embodiment, the user operation may be received by the vehicle, and the travel information of the vehicle may be transmitted to the server according to the user operation. The embodiments of the present application are merely examples, and are not limited thereto.
Step S102: according to the driving information, a required tile list of the vehicle is determined.
The map is formed by seamlessly splicing a plurality of tiles with the same size according to a set rule, and each tile can be uniquely marked by grade and row-column number. After the driving information of the vehicle is acquired, the tile list required by the vehicle is determined according to the driving information, and the specific implementation manner of determining the tile list required by the vehicle according to the driving information is not limited in the embodiment of the application. In a possible implementation manner, the tile where the vehicle is located and the surrounding tiles may be determined by the current position of the vehicle as the tile list required by the vehicle, or the tile that the driving road passes through may be determined by the driving road of the vehicle as the tile list required by the vehicle, etc., which is only taken as an example in this application.
In one possible embodiment, the tile list comprises a first set of tiles and a second set of tiles, the driving information comprises a current location of the vehicle, and determining the list of tiles required by the vehicle based on the driving information comprises:
determining a tile where the current position is located as a first tile; from the first tile, a second set of tiles is determined, a second tile of the second set of tiles being a tile at which a location that the vehicle is likely to reach within a preset time is located.
In the embodiment of the application, the integrity and the reliability of the map data in the tile list are improved by determining the tiles where the current position of the vehicle is located and the tiles where the position of the vehicle which may arrive within the preset time is located as the tile list.
The embodiment of the present application is not limited to the implementation of determining the second set of tiles according to the first tile, and in a possible implementation, determining the second set of tiles according to the first tile includes:
acquiring a road in the first tile, and determining a second tile set according to the road, wherein a second tile in the second tile set is a tile containing the road; and/or determining from the first tile a peripheral tile adjacent to the first tile, wherein the second set of tiles comprises the peripheral tile; and/or determining a second tile set according to the first tile, the driving information and the preset time.
It should be noted that "and/or" may represent three possible embodiments, including that each scheme may be used alone or two schemes may be used in combination; for example, "scheme a and/or scheme B" means "scheme a" or "scheme B" or "scheme a and scheme B".
Therefore, any one or more ways of determining the second set of tiles from the first tile may be included in the above embodiments to determine the second set of tiles, and embodiments of the present application are not listed.
The following description is directed to each specific implementation of determining the second set of tiles based on the first tile.
In a first implementable manner, a second tile of the second set of tiles is a tile containing a road by obtaining the road within the first tile and determining a second set of tiles from the road.
For convenience of introduction, fig. 3 is a schematic diagram of a tile list provided in an embodiment of the present application, as shown in fig. 3, wherein a first tile W1 is a tile where a current location of a vehicle is located, one or more roads (links) may be included in the first tile W1, such as R1, R2, and R3 in fig. 3, a tile including R1, R2, and R3 is respectively used as the second tile W2, each link has a start end point, an end point, and a shape point, and road information of the link may be stored in the tile where the start end point is located or the tile where the end point is located, and in order to ensure integrity of the road information in the first tile, the second tile set may be determined by acquiring a tile through which a road in the first tile passes as the second tile.
In a second implementable manner, a peripheral tile adjacent to the first tile is determined from the first tile, wherein the second set of tiles comprises the peripheral tile.
Fig. 4 is a schematic structural diagram of a tile list provided in another embodiment of the present application, and as shown in fig. 4, the first tile W1 is a tile where the current location of the vehicle is located, and the second tile W2 may include a tile directly adjacent to the first tile W1, or may include a tile that is less than a preset distance from the first tile W1.
In a third implementable manner, a second set of tiles is determined from the first tile, the travel information and a preset time.
For example, the driving information may include a driving direction, and if the vehicle is driven on R2 and the driving direction is a true north direction, the tile where R2 is located may be taken as the second tile, as shown in fig. 3. And then determining the number of the tiles which can be passed by the vehicle to run through according to the preset time, and further determining other second tiles.
For another example, the driving information further includes a driving speed and a driving direction, and the determining the second tile set according to the first tile, the driving information and the preset time includes:
determining the driving distance of the vehicle within a preset time at the driving speed; determining a first quantity threshold value M and a second quantity threshold value N of tiles which can be passed by a vehicle in a preset time according to the distance, wherein M is a threshold value of the quantity of parallel tile borders, and N is a threshold value of the quantity of diagonal tiles; a second set of tiles is determined based on the driving direction, M, and N.
The distance traveled by the vehicle within the preset time may be calculated by multiplying the travel speed of the vehicle by the preset time. The first and second threshold numbers M, N of tiles that the vehicle may pass through within a preset time according to the distance may be calculated by the following formula:
first quantity threshold: m ═ ceil (D/L);
second quantity threshold:
where ceil denotes rounding up, e.g., ceil (0.1) ═ 1, D denotes the distance traveled by the vehicle over a preset time, the tiles are square and have fixed side lengths, L denotes the actual distance represented by the side lengths of the tiles, and in one possible embodiment, L ═ 2.44 kilometers (km).
According to the driving direction of the vehicle, the area that the vehicle may pass through can be judged, fig. 5 is a schematic diagram of an azimuth coordinate system provided in an embodiment of the present application, and as shown in fig. 5, the azimuth coordinate system is established with the current position of the vehicle as the center, wherein the due north direction is 0 °, the direction angle gradually increases according to the clockwise direction until returning to the due north direction by 360 °, wherein 360 ° coincides with 0 °. According to the direction angle of vehicle running, the area is divided into a first area, a second area, a third area and a fourth area, wherein the first area is an area with the direction angle of more than or equal to 45 degrees and less than 135 degrees, the second area is an area with the direction angle of more than or equal to 135 degrees and less than 225 degrees, the third area is an area with the direction angle of more than or equal to 225 degrees and less than 315 degrees, and the fourth area is an area with the direction angle of more than or equal to 0 degrees and less than 45 degrees or the direction angle of more than or equal to 315 degrees and less than 360 degrees.
Based on this, in one possible implementation, the second set of tiles is determined according to the driving direction, M and N, which may be the area that the vehicle is likely to reach according to the driving direction. For example, if the direction angle of the traveling direction of the vehicle is 60 °, the area that the vehicle is likely to reach is the first area, and then the area in the first area near the first tile can be determined
The first tile is a second tile, which is taken as an example and not limited to this.
In another possible embodiment, determining the second set of tiles according to the driving direction, M and N comprises:
s1: determining two direction pairs of the driving direction, wherein the two direction pairs are used for determining a second tile set; wherein one direction pair comprises a first direction and a second direction, the first direction and the second direction being perpendicular to each other; the other pair of directions includes a second direction and a third direction, the third direction being perpendicular to the second direction and opposite to the first direction.
S2: m tiles are respectively obtained along the first direction and the second direction of the first tile, and the M tiles are set as a second tile.
S3: a tile diagonally adjacent to the first tile between the first direction and the second direction is set as the first tile, and M-1 and N-1 are set.
S4: steps S2-S4 are repeatedly performed until N < ═ 0, and the second set of tiles includes all the second tiles obtained.
The following description will only take the driving direction of the vehicle being greater than or equal to 135 ° and less than 315 ° as an example, and the methods for other directions are similar to this method and will not be described again. Fig. 6 is a schematic diagram of a tile list according to yet another embodiment of the present application, and as shown in fig. 6, a region that a vehicle may reach may be determined to be a third region according to a driving direction of the vehicle, where each region corresponds to two mutually perpendicular direction pairs, where the two direction pairs corresponding to the third region are 0 ° and 270 °, and 180 ° and 270 °, respectively, and the direction pairs corresponding to the third region are described as 0 ° and 270 °, and the processing manner of the direction pairs corresponding to 180 ° and 270 ° is similar thereto, and is not described again. For convenience of description, the first direction is 0 °, the second direction is 270 °, M is 2, and N is 2.
The second tile W2 is obtained as 2 tiles in the 0 ° direction and the 270 ° direction of the first tile W1, respectively, then the tile W3 diagonally adjacent to the first tile between the first direction and the second direction is set as the first tile, M-1, N-1, then the second tile W4 is obtained as 1 tile in the 0 ° direction and the 270 ° direction of the tile W3, M-1, N-1, M-0, N-0, and N-0, respectively, and the cycle ends. The second set of tiles includes all second tiles acquired for both direction pairs according to the method described above. According to the tile setting method and device, the second tile set is determined according to the first tile, the vehicle running speed, the vehicle running direction and the preset time, tiles where positions which can possibly reach within the preset time can be determined more accurately, and the reliability of the second tile set is improved.
Step S103: and processing and extracting the map data in the tile list in the target NDS map data to generate target data.
After the tile list is determined, the map data in the tile list in the target NDS map data is processed and extracted to generate target data. The target data is data in a tile list of the target NDS map data. The target NDS map data is map data meeting preset conditions; in one possible implementation, the target NDS map data is the most up-to-date map data.
The specific implementation manner of processing and extracting the map data in the tile list in the target NDS map data is not limited in the embodiment of the present application, and in a possible implementation manner, the processing and extracting the map data in the tile list in the target navigation data standard NDS map data to generate the target data includes:
traversing first data in a tile list in the target NDS map data, the first data including road information in the tile list and road information of tiles in a non-tile list adjacent to the tiles in the tile list, the road information including shape points and end points of the roads; determining, in the road information, a shape point and an end point of a first road extending from a tile in the tile list to a tile in the non-tile list along the driving direction; and determining the shape point of the junction of the tile in the tile list and the tile in the non-tile list in the first road as a new end point, updating the road information, and generating target data.
In one possible embodiment, in the road information, there may be a second road extending from a tile in the non-tile list to a tile in the tile list along the traveling direction, and the road information of the second road may be directly deleted in order to reduce the amount of data.
In the target NDS map data, it is possible that map data in each provincial region is stored in a different storage region, the first data in the tile list and road information of tiles in the non-tile list adjacent to the tiles in the tile list are acquired, and the map data in the tile list can be extracted by determining provincial information in the tile list and then extracting the map data in the tile list from the map data of the provincial region involved in the tile list. The first data includes road information in the tile list, the road information including shape points and end points of roads, in the road information, there are cross-tile roads and non-cross-tile roads, in which there may also be roads that cross tiles in the tile list and tiles in the non-tile list. For a link that spans a tile in the tile list and a tile in the non-tile list, the shape point of the link needs to be used when cutting the link, and the shape point of the link may be located at the boundary between the tile list and the non-tile list.
In the embodiment of the present application, a road extending from a tile in the tile list to a tile in the non-tile list along the driving direction is determined as the first road according to the direction of the road.
The first road comprises end points and shape points, and the distribution of the first road may comprise: one end point is in a tile of the tile list and the other end point is in a tile of the non-tile list; or, both end points are in a tile of the tile list, the shape point is in a tile of the non-tile list; or, the shape point is in a tile in the tile list, and the two end points are in a tile in the non-tile list, which is not limited by the embodiment of the present application. And taking the shape point at the junction of the tile in the tile list and the tile in the non-tile list in the first road as a new end point, updating the road information and generating target data. In one possible embodiment, the updating the road information further includes: and updating the identification of each road, the attribute information of the road and the incidence relation among the roads in the road information.
The road mark may include a cross-tile mark and a non-cross-tile mark, and the attribute information of the road may include information such as a level, a road position, road lane information, and a road type of the road, which is not limited in the embodiment of the present application. If the attribute information of the road is in the tiles of the non-tile list, reading the attribute information of the road from the tiles of the non-tile list and adding the attribute information of the road into the updated tiles where the road is located; and if the attribute information of the road is in the tiles of the tile list, updating the association relationship among the roads.
In the embodiment of the application, the reliability and the integrity of the target data are further ensured by updating the end points of the roads of the tiles in the cross-tile list and the tiles in the non-tile list, and updating the identification of each road, the attribute information of the roads and the incidence relation among the roads in the road information.
In a possible implementation, before obtaining the first data in the tile list, the method further includes:
determining a preset NDS data grade, wherein the preset NDS data grade comprises information types required by the vehicle; acquiring map data with preset NDS data levels from target NDS map data; obtaining first data in a tile list, comprising: in map data of a preset NDS data level, first data in a tile list is acquired.
Different types of Information may be needed for different vehicles, and the Information types may include road Information (ROUTING), NAME (NAME), Point of Interest (POI), Traffic Information (TI), intersection View (JV), voice (Speech), and the like. Three NDS data levels may be provided based on the function required for vehicle assisted driving, for example, a first level including ROUTING, NAME information; the second level comprises ROUTING, NAME and POI information; the third level includes ROUTING, NAME, POI, TI, JV, spech information. The preset NDS data level may be any one of a first level, a second level, and a third level.
In the embodiment of the application, the NDS data grade can be preset according to different requirements of the vehicle on the information types in the map data, and data except the NDS data grade can be deleted, so that data redundancy can be avoided, and the data processing efficiency can be improved.
Step S104: and sending the target data to the vehicle so as to update the map data of the tile list in the vehicle into the target data.
After the target data is obtained, the server sends the target data to the vehicle to update the map data of the tile list in the vehicle to the target data, and updates the map data of the tile list in the vehicle to the target data, and the target data can be fused with the data in the tile list in the vehicle, or a data source of the vehicle can be switched, and the target data is directly used for navigation.
In the embodiment of the application, the tile list required by the vehicle is determined according to the driving information, the map data in the tile list in the target NDS map data is processed and extracted to generate the target data, so that the vehicle updates the map data in the tile list in the vehicle into the target data, the map data in the vehicle is updated, the map data in the tile list in the target NDS map data is only extracted and processed, and the map data in the tile list in the vehicle is updated, the efficiency of updating the map data by the vehicle is improved, a large amount of calculation is avoided, and compared with the prior art that the vehicle needs to store the whole amount of map data, the storage space of the vehicle is saved.
The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.
Fig. 7 is a schematic structural diagram of a map data updating apparatus provided in an embodiment of the present application, which may be implemented by software and/or hardware, for example: the apparatus may be part or all of a server, and as shown in fig. 7, the map data updating apparatus provided in the embodiment of the present application may include:
an obtaining module 61, configured to obtain driving information of a vehicle, where the driving information includes a current position, a driving direction, and a driving speed of the vehicle;
a first determining module 62, configured to determine a tile list required by the vehicle according to the driving information;
the processing module 63 is configured to process and extract map data in a tile list in the target navigation data standard NDS map data to generate target data, where the target NDS map data is map data meeting preset conditions;
a first sending module 64, configured to send the target data to the vehicle to update the map data of the tile list in the vehicle to the target data.
Fig. 8 is a schematic structural diagram of a map data updating apparatus according to another embodiment of the present application, which may be implemented by software and/or hardware, for example: the device may be part or all of a vehicle, for example, a vehicle machine, as shown in fig. 8, the map data updating device provided in the embodiment of the present application may include:
a second sending module 71, configured to send driving information of the vehicle to the server, where the driving information includes a current position, a driving speed, and a driving direction of the vehicle, so that the server determines a tile list required by the vehicle according to the driving information, and processes and extracts map data in the tile list in the target NDS map data to generate target data, where the target NDS map data is map data meeting a preset condition and sends the target data to the vehicle;
a receiving module 72, configured to receive target data sent by a server;
and an updating module 73, configured to update the map data of the tile list in the vehicle to the target data.
In a possible implementation, the second sending module 71 is specifically configured to:
and if the tile data of the preset distance in front of the driving road of the vehicle is missing or the preset time is exceeded since the last map data updating, transmitting the driving information of the vehicle to the server.
The device embodiments provided in the present application are merely schematic, and the module division in fig. 7 and fig. 8 is only one logic function division, and there may be other division ways in actual implementation. For example, multiple modules may be combined or may be integrated into another system. The coupling of the various modules to each other may be through interfaces that are typically electrical communication interfaces, but mechanical or other forms of interfaces are not excluded. Thus, modules described as separate components may or may not be physically separate, may be located in one place, or may be distributed in different locations on the same or different devices.
Fig. 9 is a schematic structural diagram of a server provided in the embodiment of the present application, and as shown in fig. 9, the server provided in the embodiment of the present application includes:
a processor 81, a memory 82, a transceiver 83, and a computer program; wherein the transceiver 83 enables data transmission with other devices, a computer program is stored in the memory 82 and configured to be executed by the processor 81, the computer program comprising instructions for performing the above-mentioned map data updating method, the contents and effects of which refer to the method embodiments.
Fig. 10 is a schematic structural diagram of a vehicle machine provided in an embodiment of the present application, and as shown in fig. 10, the vehicle machine includes:
a processor 91, a memory 92, a transceiver 93, and a computer program; wherein the transceiver 93 enables data transmission with other devices, a computer program is stored in the memory 92 and configured to be executed by the processor 91, the computer program comprising instructions for performing the above-mentioned map data updating method, the contents and effects of which refer to the method embodiments.
The embodiment of the application further provides a vehicle, which comprises the vehicle machine provided by the embodiment.
In addition, embodiments of the present application further provide a computer-readable storage medium, in which computer-executable instructions are stored, and when at least one processor of the user equipment executes the computer-executable instructions, the user equipment performs the above-mentioned various possible methods.
Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in user equipment. Of course, the processor and the storage medium may reside as discrete components in a communication device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (12)
1. A map data updating method, comprising:
acquiring running information of a vehicle, wherein the running information comprises a current position, a running speed and a running direction of the vehicle;
determining a tile list required by the vehicle according to the driving information;
processing and extracting map data in the tile list in target navigation data standard NDS map data to generate target data, wherein the target NDS map data are map data meeting preset conditions;
sending the target data to the vehicle to update the map data of the tile list in the vehicle to the target data.
2. The method of claim 1, wherein the tile list comprises a first set of tiles and a second set of tiles, and wherein determining the list of tiles needed for the vehicle based on the driving information comprises:
determining that the tile in which the current position is located is the first tile;
determining the second tile set according to the first tile, wherein the second tile in the second tile set is the tile where the vehicle can reach in the preset time.
3. The method of claim 2, wherein determining the second set of tiles from the first tile comprises:
acquiring a road in the first tile, and determining a second tile set according to the road, wherein the second tile in the second tile set is a tile containing the road;
and/or the presence of a gas in the gas,
determining a peripheral tile from the first tile that is adjacent to the first tile, wherein the second set of tiles includes the peripheral tile;
and/or the presence of a gas in the gas,
determining the second set of tiles according to the first tile, the driving information and the preset time.
4. The method of claim 3, wherein determining the second set of tiles from the first tile, the driving information, and the preset time comprises:
determining the distance traveled by the vehicle within the preset time at the travel speed;
determining a first quantity threshold M and a second quantity threshold N of tiles which the vehicle may pass through within the preset time according to the distance, wherein M is a threshold of the number of parallel tile borders, and N is a threshold of the number along the diagonal of the tiles;
determining the second set of tiles according to the driving direction, the M, and the N.
5. The method of claim 4, wherein determining the second set of tiles from the direction of travel, the M, and the N comprises:
s1: determining two direction pairs of the driving direction, the two direction pairs being used for determining the second set of tiles; wherein a pair of directions comprises a first direction and a second direction, the first direction and the second direction being perpendicular to each other;
s2: respectively obtaining M tiles along the first direction and the second direction of a first tile, and setting the M tiles as the second tile;
s3: setting tiles diagonally adjacent to a first tile between the first direction and the second direction as a first tile, where M-1 and N-1;
s4: repeating steps S2-S4 until N < ═ 0, the second set of tiles including all the second tiles obtained.
6. The method according to any of claims 1-5, wherein the processing and extracting map data within the tile list in target navigation data standard NDS map data to generate target data comprises:
traversing, in the target NDS map data, first data in the tile list, the first data including road information in the tile list and road information of tiles in a non-tile list adjacent to tiles in the tile list, the road information including shape points and end points of roads;
determining, in the road information, a shape point and an end point of a first road extending from a tile in the tile list to a tile in the non-tile list along the driving direction;
determining a shape point at a junction of the tile in the tile list and the tile in the non-tile list in the first road as a new end point, updating the road information, and generating the target data.
7. The method of claim 6, wherein the updating the road information further comprises:
and updating the identification of each road, the attribute information of the road and the incidence relation among the roads in the road information.
8. The method of claim 6, further comprising, prior to obtaining the first data in the tile list:
determining a preset NDS data level, wherein the preset NDS data level comprises information categories required by the vehicle;
acquiring map data of the preset NDS data grade from the target NDS map data;
the obtaining first data in the tile list comprises:
and acquiring first data in the tile list from the map data of the preset NDS data level.
9. The method of claim 1, wherein the obtaining the driving information of the vehicle comprises:
and if the tile data of the preset distance in front of the driving road of the vehicle is missing, or the preset time is exceeded from the last updating of the map data, or user operation is received, acquiring the driving information of the vehicle.
10. A server, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-9.
11. The utility model provides a car machine, its characterized in that includes:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein
The memory stores instructions executable by the at least one processor, the instructions being executable by the at least one processor, the at least one processor being further configured to:
sending the driving information of the vehicle to a server, wherein the driving information comprises the current position, the driving speed and the driving direction of the vehicle, so that the server determines a tile list required by the vehicle according to the driving information, processes and extracts map data in the tile list in target NDS map data to generate target data, the target NDS map data is map data meeting preset conditions, and the target data is sent to the vehicle; receiving target data sent by a server; the map data of the tile list in the vehicle is updated to target data.
12. A non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to perform the method of any one of claims 1-9.
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| CN202010227907.7A CN113448973A (en) | 2020-03-27 | 2020-03-27 | Map data updating method, server, vehicle machine and storage medium |
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