WO2021103514A1 - 一种基于车联网的动态信息发送方法及设备 - Google Patents
一种基于车联网的动态信息发送方法及设备 Download PDFInfo
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Definitions
- This application relates to the field of communication technology, and in particular to a method and equipment for sending dynamic information based on the Internet of Vehicles.
- a high-precision map includes a static layer part and a dynamic layer part.
- the static layer part mainly refers to some target objects or objects that remain regular in the high-precision map, which can include roads, lanes, intersections, road signs, and traffic. Road ancillary facilities such as signs, traffic lights, etc.
- the dynamic layer part refers to the dynamic information that is changing or may change during the automatic driving process, that is, dynamically changing event information, such as changing traffic flow, real-time road conditions, road repair or road closure, and other data that need to be pushed or updated in real time.
- the communication of intelligent networked vehicles based on the information of the dynamic layer part can provide a more accurate basis for vehicle positioning, decision-making planning, and perception fusion, thereby ensuring the driving safety and comfort of higher-level autonomous vehicles And driving efficiency.
- the traffic flow and traffic congestion information on the same road segment may change with the time period, the traffic flow information from 7 pm to 9 pm and the traffic flow from 9 am to 11 am Information may be very different. Therefore, real-time and accurate dynamic information should be indicated from the two dimensions of time and space. This will lead to a large amount of dynamic information sent by the Internet of Vehicles server to the Internet of Vehicles terminal. In the case of a certain bandwidth If the data volume of the dynamic information to be sent is relatively large, the transmission time will be longer, which will affect the transmission efficiency of the dynamic information.
- the embodiments of the present application provide a method and device for transmitting dynamic information based on the Internet of Vehicles, so as to solve the problem of low dynamic information transmission efficiency in the prior art.
- the embodiments of the present application provide a method for sending dynamic information based on the Internet of Vehicles.
- the first device determines the indication range of the dynamic information in the high-precision map according to the route information of the navigation map. Further, the The first device sends first indication information to the second device, where the first indication information is used to indicate dynamic information within the indication range in the high-precision map.
- the methods described in the embodiments of the present application may be executed by the first device, or may be executed by components in the first device, such as a processor chip or a circuit.
- the execution of the first device is taken as an example for description.
- the first device can be a device such as a car networking server or a roadside unit or a cloud server such as a map cloud server.
- the second device described can be a car networking terminal (such as a vehicle, a device for navigation, advanced intelligent driving assistance, or autonomous driving). On-board unit, on-board box, etc.).
- the first device uses the route information of the navigation map as a constraint or restriction condition indicating the range of the dynamic information in the high-precision map of the second device, and determines the dynamic information in the high-precision map according to the route information of the navigation map. Indicating the range, so that it is not necessary to send all the dynamic information of the high-precision map to the second device, reducing the data volume of the dynamic information sent, and improving the transmission efficiency of the dynamic information.
- the second device is driving within the indication range corresponding to the navigation information of the navigation map.
- the first device restricts the indication range of the dynamic information in the high-precision map according to the route information of the navigation map, and not only does not affect the second device
- the driving within the corresponding indication range of the navigation information has an impact, and by reducing the data volume of the dynamic information sent to the second device, the transmission efficiency of the dynamic information is improved, which is more conducive to the second device to obtain the dynamic information related to the driving in time. Improve driving safety.
- the dynamic information includes at least one of traffic jam information, traffic accident information, road surface condition information, passable information, pedestrian or bicycle crossing road information, and pedestrian or motor vehicle occupation road information.
- traffic jam information traffic accident information
- road surface condition information road surface condition information
- passable information pedestrian or bicycle crossing road information
- pedestrian or motor vehicle occupation road information pedestrian or motor vehicle occupation road information
- the method further includes: before the first device sends the first indication information to the second device, sending second indication information to the second device, the second indication Information is used to indicate that the dynamic information is associated with the path information.
- sending, by the first device, the first indication information to the second device includes: sending second indication information and the first indication information to the second device, where the second indication information is used for Indicating that the dynamic information is associated with the path information.
- the second indication information indicates that the dynamic information indicated by the first indication information is associated with the route information of the navigation map, which is beneficial to The second device distinguishes whether the first indication information indicates global dynamic information of the high-precision map system or dynamic information within an indication range corresponding to the route information of the navigation map.
- the first device when the dynamic information is associated with the path information, the first device sends the first indication information to the second device in a first format, and the first format corresponds to the The first device sends the dynamic information within the indication range corresponding to the path information to the second device; when the dynamic information indicated by the first indication information is not associated with the path information of the navigation map, the The first device sends the first indication information to the second device in a second format, where the first format is different from the second format.
- the first device uses a matching format to send the dynamic information, which helps the second device to distinguish that the first instruction information indicates the global high-precision map system according to the format of the first instruction information.
- the dynamic information is still dynamic information within the indicated range corresponding to the route information of the navigation map.
- the first indication information when the dynamic information is road-level dynamic information, includes: road marking information and content of dynamic information corresponding to the road marking information; when the dynamic information is In the case of lane-level dynamic information, the first indication information includes: lane identification information and content of dynamic information corresponding to the lane identification information, wherein the lane identification information includes road information and lane information.
- the dynamic information is classified according to the content type of the dynamic information, and the data format of the dynamic information of different content types is standardized for standardized transmission, which is beneficial to improve the transmission efficiency of the dynamic information and facilitate the second device to check the dynamic information. Acquisition of information content.
- the first device sending the first indication information to the second device includes: when the dynamic information is low-efficiency dynamic information, the first device sends the first indication information to the second device according to the first period.
- the second device sends the first indication information; when the dynamic information is high-efficiency dynamic information, the first device sends the first device to the second device when the trigger event corresponding to the dynamic information is triggered.
- the device sends the first indication information.
- the first device sends the first indication information to the second device, which is conducive to the timely maintenance or update of the dynamic information in the high-precision map by the second device.
- the first device sends the first indication information to the second device according to the first cycle, which is beneficial to saving signaling.
- the high-efficiency dynamic information is sent when the corresponding trigger event is triggered
- the low-efficiency dynamic information it is sent according to the first cycle, which avoids sending all the dynamic information to the second device at the same time, which is also conducive to improving the transmission of dynamic information. reliability.
- the first indication information indicates the at least two associated information contents that are jointly coded.
- the associated information content is jointly encoded, which is conducive to the binding and transmission of dynamic information, and also helps to quickly update the dynamic information in the high-precision map in the second device, thereby improving the driving safety of the autonomous vehicle.
- the scrambling codes or initialization values corresponding to the dynamic information of different high-precision maps are different.
- the first device can use different scrambling codes or initialization values to scramble the dynamic information, and the dynamic information after different scrambling or initialization corresponds to different image providers.
- the high-precision map that is, the processing method or transmission format of the dynamic information corresponding to the high-precision map of different graphic vendors can be different.
- the embodiments of the present application provide a method for sending dynamic information based on the Internet of Vehicles.
- the beneficial effects of the second aspect can be referred to the beneficial effects of the first aspect.
- the method includes: the first device sends the first device to the second device.
- Indication information the first indication information is used to indicate dynamic information in a high-precision map, where, when the dynamic information is road-level dynamic information, the first indication information includes: road identification information and the road identification The content of the dynamic information corresponding to the information; when the dynamic information is lane-level dynamic information, the first indication information includes: lane identification information and content of the dynamic information corresponding to the lane identification information, wherein the lane identification information Including road information and lane information.
- the sending of the first indication information by the first device to the second device includes:
- the first device When the dynamic information is low-efficiency dynamic information, the first device sends the first indication information to the second device according to a first cycle; when the dynamic information is high-efficiency dynamic information, the first device When a device is triggered by a trigger event corresponding to the dynamic information, the first device sends the first indication information to the second device.
- the first indication information indicates the at least two associated information contents that are jointly coded.
- the scrambling codes or initialization values corresponding to the dynamic information of different high-precision maps are different.
- the embodiments of the present application provide a method for receiving dynamic information based on the Internet of Vehicles.
- the beneficial effects of the third aspect can be referred to the beneficial effects of the first aspect.
- the method includes: the second device receives the data sent by the first device.
- the first indication information, the first indication information is used to indicate the dynamic information within the indication range in the high-definition map, and the indication range is the information in the high-definition map determined by the first device according to the route information of the navigation map
- the indication range of the dynamic information the second device maintains and updates the dynamic information within the indication range in the high-precision map according to the first indication information.
- the dynamic information includes at least one of traffic jam information, traffic accident information, road surface condition information, passable information, pedestrian or bicycle crossing road information, and pedestrian or motor vehicle occupation road information.
- the method before the second device receives the first indication information sent by the first device, the method further includes: the second device receives the second device sent by the first device. Indication information, the second indication information is used to indicate that the dynamic information is associated with the path information; or the second device receiving the first indication information sent by the first device includes: receiving the first device The sent second indication information and the first indication information, where the second indication information is used to indicate that the dynamic information is associated with the path information.
- the receiving, by the second device, the first indication information sent by the first device includes: receiving, by the second device, the second device sent by the first device in a first format.
- the first indication information when the dynamic information is road-level dynamic information, includes: road marking information and content of dynamic information corresponding to the road marking information; when the dynamic information is In the case of lane-level dynamic information, the first indication information includes: lane identification information and content of dynamic information corresponding to the lane identification information, wherein the lane identification information includes road information and lane information.
- the first indication information indicates the at least two associated information contents that are jointly coded.
- the scrambling codes or initialization values corresponding to the dynamic information of different high-precision maps are different.
- an embodiment of the present application provides a method for receiving dynamic information based on the Internet of Vehicles.
- the beneficial effects of the fourth aspect may refer to the beneficial effects of the first aspect.
- the method includes: the second device receives the data sent by the first device.
- the first indication information is used to indicate the dynamic information in the high-precision map; wherein, when the dynamic information is road-level dynamic information, the first indication information includes: road identification information and the The content of the dynamic information corresponding to the road identification information; when the dynamic information is lane-level dynamic information, the first indication information includes: lane identification information and content of the dynamic information corresponding to the lane identification information, wherein the lane The identification information includes road information and lane information; the second device maintains and updates the dynamic information in the high-precision map according to the first instruction information.
- the dynamic information includes at least one of traffic jam information, traffic accident information, road surface condition information, passable information, pedestrian or bicycle crossing road information, and pedestrian or motor vehicle occupation road information.
- the first indication information indicates the at least two associated information contents that are jointly coded.
- the scrambling codes or initialization values corresponding to the dynamic information of different high-precision maps are different.
- an embodiment of the present application provides an Internet of Vehicles device, which has the function of realizing any of the possible design methods of the first aspect or the first aspect, or the second aspect or the second aspect.
- the function of any possible design method can be realized by hardware, or by hardware executing corresponding software.
- the hardware or software includes one or more modules corresponding to the above-mentioned functions, such as a transceiver unit and a processing unit.
- the device can be a chip or an integrated circuit.
- the device includes a memory and a processor.
- the memory is used to store a program executed by the processor.
- the program is executed by the processor, the device can execute the first aspect or any of the first aspects.
- the method described in one possible design, or the method described in the above-mentioned second aspect or any one of the possible designs of the second aspect is implemented.
- the device can be a car networking server or a roadside unit.
- an embodiment of the present application provides an Internet of Vehicles device, which has the function of realizing any one of the possible design methods of the third aspect or the third aspect, or the fourth aspect or the fourth aspect.
- the function of any possible design method can be realized by hardware, or by hardware executing corresponding software.
- the hardware or software includes one or more modules corresponding to the above-mentioned functions, such as a transceiver unit and a processing unit.
- the device can be a chip or an integrated circuit.
- the device includes a memory and a processor, and the memory is used to store a program executed by the processor.
- the program is executed by the processor, the device can execute any of the foregoing third aspect or the third aspect.
- the method described in one possible design, or the method described in the fourth aspect or any one of the possible designs of the fourth aspect is implemented.
- the device can be a car networking terminal.
- an embodiment of the present application provides a computer-readable storage medium, the storage medium stores computer instructions, and when the computer instructions are executed, the first aspect or any one of the possibilities of the first aspect can be realized.
- the method described in the design, or the method described in the second aspect or any one of the possible designs of the second aspect above, or the method described in the third aspect or any one of the possible designs of the third aspect above The method described above, or the method described in the fourth aspect or any one of the possible designs of the fourth aspect.
- the embodiments of the present application also provide a computer program product, including a computer program or instruction.
- the computer program or instruction When executed, it can implement the above-mentioned first aspect or any one of the possible designs of the first aspect.
- FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of this application.
- FIG. 2 is a schematic diagram of a dynamic information transmission process provided by an embodiment of this application.
- FIG. 3 is a schematic diagram of navigation information of a navigation map provided by an embodiment of this application.
- FIG. 4 is a schematic diagram of another dynamic information transmission process provided by an embodiment of this application.
- FIG. 5 is a schematic diagram of a dynamic information transmission format provided by an embodiment of this application.
- FIG. 6 is a schematic block diagram of a car networking device provided by an embodiment of the application.
- FIG. 7 is a schematic block diagram of an Internet of Vehicles server provided by an embodiment of the application.
- FIG. 8 is a schematic block diagram of another car networking device provided by an embodiment of the application.
- FIG. 9 is a schematic block diagram of a car networking terminal provided by an embodiment of the application.
- Fig. 10 is a schematic structural diagram of a car networking terminal provided by an embodiment of the application.
- This application provides a method and equipment for sending dynamic information based on the Internet of Vehicles, which aims to improve the dynamics of the HD map by restricting the range of the dynamic information transmitted by the dynamic layer of the HD map and optimizing the transmission format of the dynamic information.
- the transmission efficiency of the dynamic information of the layer solves the problem of low transmission efficiency in the real-time transmission of all dynamic information of the high-precision map dynamic layer in the prior art.
- the Internet of Vehicles terminal can also be referred to as Internet of Vehicles communication device or vehicle terminal equipment in this application.
- the IoV terminal can be an IoV terminal of a vehicle or non-motor vehicle with a communication function, a portable device, a wearable device, a mobile phone (or called a "cellular" phone), a portable, pocket-sized, or handheld terminal, etc., or Chips in these devices, etc.
- a vehicle is a typical Internet of Vehicles terminal.
- a vehicle is used as an example for description. Those skilled in the art should understand that the embodiments of the present application using a vehicle as an example can also be applied to other types Terminal.
- the Internet of Vehicles terminal can specifically execute Internet of Vehicles related business processes through its internal functional units or devices.
- the Internet of Vehicles terminal is a vehicle
- one or more of the following devices in the vehicle can be used to execute the method procedures related to the Internet of Vehicles terminal in the embodiment of the present application, such as a telematics box (T-Box), a domain controller ( domian controller (DC), multi-domian controller (MDC), on-board unit (OBU), or car networking chip, etc.
- T-Box telematics box
- DC domian controller
- MDC multi-domian controller
- OBU on-board unit
- car networking chip etc.
- Roadside unit which can be used to send vehicles to everything (vehicle to everything) through communication methods such as direct communication (such as PC5) or dedicated short-range communications (dedicated short range communications, DSRC). , V2X) message.
- the V2X message can carry dynamic information or other information that needs to be notified to the car networking terminal.
- the communication method between the roadside unit and the vehicle networking terminal may also be referred to as vehicle to roadside infrastructure (V2I) communication.
- V2I vehicle to roadside infrastructure
- This application does not specifically limit the specific deployment form of the roadside unit, which may be a car networking terminal, mobile or non-mobile terminal equipment, server or chip, etc.
- the roadside unit can also be used to report dynamic information that occurs within the jurisdiction to the Internet of Vehicles server, for example, to report dynamic information through roadside information (RSI) messages.
- RSI roadside information
- the Internet of Vehicles server can be an Internet of Vehicles platform or server that manages and provides services to Internet of Vehicles terminals and/or roadside units, including application servers or map cloud servers that provide services for high-precision maps and navigation maps.
- the specific deployment form of the Internet of Vehicles server is not limited in this application. The specific deployment form may be cloud deployment, or independent computer equipment or chips.
- the car networking server can send the V2X message to the roadside unit, and the roadside unit can broadcast it to the car networking terminal in its coverage area.
- the V2X message can also be sent directly to the car networking terminal by the car networking server.
- At least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.
- the ordinal numbers such as "first" and "second” mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance.
- the first lane and the second lane are only for distinguishing different lanes, but do not indicate the difference in priority or importance of the two lanes.
- a network architecture applicable to this embodiment of the application relates to an Internet of Vehicles server that provides services for high-precision maps and navigation maps, and Internet of Vehicles terminals for navigation, advanced intelligent assisted driving or autonomous driving, and It may involve equipment such as roadside units, wherein the Internet of Vehicles server may be an application server or a map cloud server that provides services for high-precision maps and navigation maps, and the Internet of Vehicles terminal device may be a vehicle or may be installed in the vehicle.
- the on-board unit, on-board box and other devices of the vehicle are not specifically limited here.
- the Internet of Vehicles server can communicate with Internet of Vehicles terminals and multiple roadside units deployed on the roadside of the road (the road can include one or more lanes), and each roadside unit can also communicate to the Internet of Vehicles terminal within its own coverage area. Send a V2X message.
- the coverage areas of different roadside units are separated by dotted lines in FIG. 1. It should be understood that in practical applications, the coverage area of the roadside unit can be a regular shape, such as a rectangle, or an irregular shape; the coverage areas of different roadside units can be partially or completely overlapped, as shown in Figure 1 of this application. Only one possible example.
- the Internet of Vehicles server can provide planning and control services for Internet of Vehicles terminals by maintaining and updating the information of the high definition map (HD MAP), and can also maintain and update the information of the navigation map.
- the car networking terminal provides navigation services.
- a roadside unit can send a car networking message containing dynamic information of a high-precision map to a car networking terminal.
- dynamic information usually corresponds to a time-varying dynamic event, which is information about a dynamic event.
- a dynamic event refers to information that may change over time, such as: lanes, road construction events, traffic control events, traffic Accident events, severe weather, or natural disasters, etc.
- V2X vehicle to X, commonly known as V2X
- V2X vehicle to X
- the range of dynamic information transmitted by the dynamic layer of the high-precision map can be restricted by the route information of the navigation map, so as to reduce the transmission volume of the dynamic information in the high-precision map to be transmitted and improve the dynamic information. Transmission efficiency and utilization.
- a schematic diagram of a dynamic information transmission process provided by an embodiment of this application can be implemented by an Internet of Vehicles server as the first device and an Internet of Vehicles terminal (a vehicle as an example) as the second device.
- the method includes the following steps.
- S201 The Internet of Vehicles server determines the indication range of the dynamic information in the high-precision map according to the route information of the navigation map.
- the indication range of the dynamic information in the high-precision map corresponds to the route information of the navigation map, that is, when the car networking server indicates the dynamic information in the high-precision map of the car networking terminal, the car networking server can use the navigation
- the route information planned by the map for the IoV terminal is used as a range constraint indicating the dynamic information in the high-precision map of the IoV terminal to reduce the amount of dynamic information transmission, thereby improving the transmission efficiency of dynamic information.
- the route information of the navigation map such as the route information planned by the navigation map for the IoV terminal (vehicle), may include one or more driving sections planned for the IoV terminal and the lane occupied by the IoV terminal on each driving section. Information.
- the IoV The server can plan route information for the car networking terminal based on the navigation map.
- the IoV terminal reports the current location and destination to the IoV server, and the IoV server plans the IoV terminal in the navigation map according to the location of the IoV terminal "Location A" and the destination "Location B"
- One or more paths, and one or more paths planned for the IoV terminal in the navigation map are sent to the IoV terminal.
- the Internet of Vehicles server is the path planned by the Internet of Vehicles terminal in the navigation map, that is, the Internet of Vehicles server is the Internet of Vehicles in the navigation map.
- Path information planned by the terminal when the IoV server plans multiple paths in the navigation map for the IoV terminal, the IoV server can determine the path of the IoV terminal according to the path selected by the user through the IoV terminal in the navigation map information.
- the Internet of Vehicles server when the Internet of Vehicles server is not used as an application server or a map cloud server that provides services for the navigation map of the Internet of Vehicles terminal, the Internet of Vehicles server is sending to the Internet of Vehicles terminal the dynamic information in the high-precision map.
- the Internet of Vehicles server when the Internet of Vehicles server is not used as an application server or a map cloud server that provides services for the navigation map of the Internet of Vehicles terminal, the Internet of Vehicles server can also be used to provide services for the navigation map of the Internet of Vehicles terminal.
- the cloud server obtains the route information planned by the navigation map for the IoV terminal.
- the car networking server can use the navigation map as one or more driving sections planned by the car networking terminal as the dynamic information in the high-precision map Indicates the range.
- the route information planned by the navigation map for the IoV terminal is: Avenue A (section 1)-Avenue B (section 6)-Road C (section 2)
- the Internet of Vehicles server can determine
- the indication range of the dynamic information in the high-precision map is: Avenue A (section 1)-Avenue B (section 6)-Road C (section 2).
- the Internet of Vehicles server can further restrict (limit) the indication range of the dynamic information in the high-precision map according to the information of the lanes occupied on each driving section planned for the Internet of Vehicles terminal according to the navigation map.
- the IoV terminal needs to turn left into Avenue B (section 6), and the navigation map is that the IoV terminal is planned to occupy lane 2 on Avenue A (section 1). Turn left lane), the car networking server can determine that the indication range of the dynamic information in the high-precision map on Avenue A (section 1) is lane 2.
- the IoV server can determine the indication range of the dynamic information in the high-precision map as: A street (section 1) lane 2, B Lane 1 of the main street (section 6) and lane 3 of the road C (section 2) further reduce the indication range of the dynamic information in the high-precision map. Therefore, when the Internet of Vehicles server indicates dynamic information such as construction events, traffic control events, traffic accidents, severe weather or natural disasters, it only needs to indicate lane 2 of Street A (section 1) and lane 2 (section 6) of Street B (section 6). Corresponding dynamic information on lane 1 and lane 3 of road C (section 2).
- the Internet of Vehicles server can also determine the current driving section of the Internet of Vehicles terminal as an indication of the dynamic information in the high-definition map based on the route information of the navigation map of the Internet of Vehicles terminal and the current location of the Internet of Vehicles terminal.
- the current driving section of the IoV terminal is Avenue A (Road Section 1)
- the IoV server can use Lane 2 of Avenue A (Road Section 1) as the indication range of the dynamic information in the high-definition map.
- the route information of the navigation map of the Internet of Vehicles terminal will be updated. For example, when the destination remains unchanged, as the Internet of Vehicles terminal moves, the Internet of Vehicles terminal will reach the destination. The path will change, and the indication range of the dynamic information in the high-precision map determined by the Internet of Vehicles server will be updated according to the updated path information of the navigation map.
- S202 The Internet of Vehicles server sends first instruction information to the Internet of Vehicles terminal, where the first instruction information is used to indicate dynamic information within the instruction range on the high-precision map.
- the dynamic information may include at least one of the following information: traffic jam information, traffic accident information, road surface condition information, passability information, pedestrian or bicycle crossing road information, pedestrian or motor vehicle in a certain lane Road occupation information, traffic congestion information, traffic accident information, road condition information, passable information, pedestrian or bicycle crossing information, pedestrian or motor vehicle occupation information, or weather information on a certain road section.
- the first indication information indicates that the road surface condition of Lane 2 of Avenue A (Road Section 1) is wet and slippery.
- the vehicle networking terminal receives the first instruction information sent by the vehicle networking server, and maintains and updates the dynamic information within the instruction range in the high-precision map.
- the Internet of Vehicles server may send the first instruction message to the roadside unit (such as a roadside unit covering the current location of the Internet of Vehicles terminal), and the roadside unit forwards the first instruction message to the Internet of Vehicles terminal.
- the roadside unit such as a roadside unit covering the current location of the Internet of Vehicles terminal
- the roadside unit forwards the first instruction message to the Internet of Vehicles terminal.
- it is sent to the car networking terminal through low-latency wireless communication; the first indication message can also be directly sent by the car networking server to the car networking terminal, which is not specifically limited here.
- the Internet of Vehicles terminal After receiving the first instruction message, the Internet of Vehicles terminal updates the dynamic information within the corresponding instruction range according to the instruction range of the first instruction information, and can adjust the decision-making of automatic driving or the optimal driving assistance based on the updated dynamic information. Decisions on optimal driving routes.
- the first indication information indicates that the road surface condition of Lane 2 on Avenue A (section 1) is slippery
- the vehicle networking terminal updates the road surface condition of Lane 2 on Avenue A (section 1) as slippery to the high-precision map.
- the car networking terminal can combine the received first indication information sent by the car networking server with the navigation map by default, that is, the dynamic information indicated by the first indication information is associated with the route information of the navigation map.
- the car networking server when the range of dynamic information in the high-precision map indicated by the first indication information is determined according to the route information of the navigation map, before the car networking server sends the first indication information to the car networking terminal.
- the Internet of Vehicles server when the Internet of Vehicles server sends the first instruction information to the Internet of Vehicles terminal, it also sends second instruction information to the Internet of Vehicles terminal, where the second instruction information is used to indicate that the dynamic information is associated with the path information. That is, it is indicated that the dynamic information is relative information within an indication range determined according to the path information.
- the IoV server sets the dynamic information indicated by the first indication information
- the Internet of Vehicles server may also use the first format to send the first instruction information to the Internet of Vehicles terminal.
- the Internet of Vehicles server may also use a second format to send first instruction information to the Internet of Vehicles terminal, the first format corresponding to the dynamic information within the instruction range corresponding to the route information sent by the Internet of Vehicles server to the Internet of Vehicles terminal;
- the second format corresponds to that the dynamic information sent by the Internet of Vehicles server to the Internet of Vehicles terminal is not associated with the route information of the navigation map, and the first format is different from the second format.
- the Internet of Vehicles server can use one or more roadside units to broadcast format to all the areas covered by the one or more roadside units.
- the Internet of Vehicles terminal broadcasts the first indication information; the Internet of Vehicles server for the relative range of dynamic information "Wet and slippery road surface information of Lane 2 of Avenue A (section 1)" related to the route information of the navigation map of a certain Internet of Vehicles terminal
- the first instruction information is sent to the Internet of Vehicles terminal directly or through a roadside unit covering the Internet of Vehicles terminal.
- the Internet of Vehicles server indicates in the second format "the road surface wet and slippery information on all 4 lanes of Avenue A (Road 1)", that is, every The slippery road surface information of each lane shall be notified separately.
- the transmission format of the dynamic information can also be optimized to improve the transmission efficiency of the dynamic information of the dynamic layer in the high-precision map.
- the transmission format of the dynamic information can also be optimized to improve the transmission efficiency of the dynamic information of the dynamic layer in the high-precision map.
- a schematic diagram of a dynamic information transmission process provided by an embodiment of this application can be implemented by an Internet of Vehicles server as the first device and an Internet of Vehicles terminal (a vehicle as an example) as the second device.
- the method includes the following steps.
- the Internet of Vehicles server sends first instruction information to the Internet of Vehicles terminal, where the first instruction information is used to indicate dynamic information in the high-precision map;
- the first indication information when the dynamic information is road-level dynamic information, includes: road identification information and content of the dynamic information corresponding to the road identification information; when the dynamic information is lane-level dynamic information, The first indication information includes: lane identification information and content of dynamic information corresponding to the lane identification information, wherein the lane identification information includes road information and lane information.
- the vehicle networking terminal receives the first instruction information sent by the vehicle networking server, and maintains and updates the dynamic information in the high-precision map.
- the dynamic information can be divided into general dynamic information, road-level dynamic information, and lane-level dynamic information according to the coverage of the content of the dynamic information.
- General dynamic information which can also be called global level dynamic information, usually covers more than a certain road section or multiple road sections, such as weather conditions (rain, snow, fog, etc.), all road sections in a larger range are the same at the same time Of a message.
- Road-level dynamic information usually covers a certain road section, such as traffic control information on a certain road, road construction information, information on pedestrians or bicycles crossing the road, information on road occupation, etc.
- Lane-level dynamic information usually covers a certain lane, such as traffic jam information, traffic accident information, road surface information, manhole cover ups and downs, lane occupied information, and tidal lane information.
- the first indication information includes the information type, such as weather, and the content of the dynamic information corresponding to the information type, such as rainstorm weather , Estimated to last 4 hours.
- the first indication information includes road identification information, such as information road section 3 and the dynamic information corresponding to the road identification information
- the content such as road construction and speed limit of 20km/h; referring to (C) in FIG. 5, the first indication information may also include the type of information under the road sign information, such as construction conditions.
- the first indication information includes: lane identification information, such as information road section No. 3-lane 2 and the lane identification information corresponding The content of the dynamic information, such as slight congestion; referring to (E) in FIG. 5, the first indication information may also include the type of information under the lane identification information, such as traffic congestion.
- the dynamic information is classified according to the coverage of the content of the dynamic information, and the data format of the dynamic information of different content types is standardized, and the standardized transmission is helpful to improve the transmission efficiency of the dynamic information and facilitate the Internet of Vehicles terminal to analyze the dynamic information content. Of access.
- the Internet of Vehicles server can also send the first indication information for indicating the dynamic information in the high-precision map to the Internet of Vehicles terminal according to the timeliness of the dynamic information. .
- the priority can be set for the dynamic event corresponding to each dynamic information.
- the priority of the dynamic event can be used to indicate whether the dynamic event is a dynamic event with high timeliness (or emergency) or a dynamic event with low timeliness (or called Non-emergency). Thereby indicating the priority of the dynamic information corresponding to the dynamic event. For example, an event with a priority that reaches (or exceeds) a certain threshold is a low-time dynamic event, on the contrary, an event with a priority lower than (or not higher than) the threshold is a low-time dynamic event.
- high-priority dynamic events can include traffic accident information, road surface condition information, passable information (such as corresponding traffic indicator information), pedestrian or bicycle crossing road information, pedestrian or motor vehicle occupation road information, and other sudden emergencies. Strong events; low-priority dynamic events, including weather, traffic control and other unexpected events that are often predictable in advance.
- the Internet of Vehicles server can broadcast to the Internet of Vehicles terminal according to the first cycle.
- the first cycle is configurable, or it can be pre-configured in the car networking server.
- the Internet of Vehicles server broadcasts road passable information to the Internet of Vehicles terminal every 20 minutes or broadcasts weather information to the Internet of Vehicles terminal every 1 hour.
- the Internet of Vehicles server will trigger the event according to the dynamic information,
- the trigger event is triggered, the first indication information is sent to the car networking terminal.
- the lane-level dynamic information is triggered to update and the corresponding instruction is given. That is, the trigger condition of the lane-level dynamic information includes lane or road switching.
- the IoV terminal may need to change lanes or roads, so the IoV server can be based on the lane change or road switching situation of the IoV terminal , Trigger road or lane-level dynamic information to the car networking terminal.
- the priority of the dynamic event described and the trigger event of the dynamic information corresponding to the dynamic event can be pre-configured or adjusted according to requirements.
- the dynamic information sent by the Internet of Vehicles server to the Internet of Vehicles terminals that use different operators’ HD maps may adopt different data formats, for example: one
- the four traffic lights at the intersection can have different numbers in different high-precision maps.
- the four traffic lights in the high-precision map of Figure 1 are numbered 1, 2, 3, and 4, while in Figure 2
- the four traffic lights in the high-precision map of Figure 3 are numbered 4, 3, 2, and 1, and the four traffic lights in the high-precision map of Figure 3 are numbered 2, 3, 1, and 4. Therefore, the traffic light information sent to different graphic vendors should adopt the information format corresponding to the graphic vendor.
- one way is to use different scrambling codes or initialization values to scramble the dynamic information of the high-precision maps sent to different high-precision map operators.
- the IoV server when the IoV server indicates the dynamic information, it can also consider the association (binding) relationship between different dynamic information. For example, there is an association relationship between weather information and road-level road condition information. When the weather information is rain or snow, etc., Associate weather information as rain or snow with road-level road condition information, such as slippery and stagnant water information, and perform joint coding instructions. When the weather information is sunny, there may be no need to indicate slippery or stagnant water information. That is, the dependency relationship between the information to be indicated is established, for example, the indication of the slippery road surface information depends on the indication of the weather information. The joint instruction of the two can improve the efficiency of dynamic information transmission.
- association relationship between weather information and road-level road condition information When the weather information is rain or snow, etc., Associate weather information as rain or snow with road-level road condition information, such as slippery and stagnant water information, and perform joint coding instructions. When the weather information is sunny, there may be no need to indicate slippery or stagnant water information. That is, the dependency relationship between the information to be
- Another example can be when the road-level dynamic information indicates that the road is slippery and water is accumulated, and the lane-level passability information is associated at the same time, and the two kinds of dynamic information are jointly coded.
- each network element includes a hardware structure and/or software module (or unit) corresponding to each function.
- the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
- FIG. 6 shows a possible exemplary block diagram of an Internet of Vehicles device involved in an embodiment of the present application, and the Internet of Vehicles device 600 may exist in the form of software.
- the apparatus 600 may include: a processing unit 602 and a transceiver unit 603.
- the processing unit 602 is used to implement corresponding processing functions.
- the transceiver unit 603 is used to support the communication between the device 600 and other network entities.
- the transceiving unit 603 may include a receiving unit and/or a sending unit, which are used to perform receiving and sending operations, respectively.
- the device 600 may further include a storage unit 601 for storing the program code and/or data of the device 600.
- the device 600 may be the Internet of Vehicles server in any of the foregoing embodiments (for example, the Internet of Vehicles server is the Internet of Vehicles server in Embodiment 1), or may also be a component such as a chip set in the Internet of Vehicles server.
- the processing unit 602 may support the device 600 to execute the actions of the Internet of Vehicles server in the foregoing method examples. Alternatively, the processing unit 602 mainly executes the internal actions of the Internet of Vehicles server in the method example, and the transceiver unit 603 can support the communication between the device 600 and the Internet of Vehicles terminal.
- the processing unit 602 is configured to determine the indication range of the dynamic information in the high-precision map according to the path information of the navigation map;
- the transceiver unit 603 is configured to send first indication information to the car networking terminal, where the first indication information is used to indicate dynamic information within the indication range in the high-precision map.
- the dynamic information includes at least one of traffic jam information, traffic accident information, road surface condition information, passable information, pedestrian or bicycle crossing road information, and pedestrian or motor vehicle occupation road information.
- the transceiving unit 603 is further configured to send second instruction information to the Internet of Vehicles terminal before sending the first instruction information to the Internet of Vehicles terminal, and the second instruction information is used for To indicate that the dynamic information is associated with the path information.
- the transceiver unit 603 when the transceiver unit 603 sends the first instruction information to the Internet of Vehicles terminal, it is specifically configured to send the second instruction information and the first instruction information to the Internet of Vehicles terminal,
- the second indication information is used to indicate that the dynamic information is associated with the path information.
- the transceiver unit 603 when the dynamic information is associated with the path information, the transceiver unit 603 sends the first indication information to the vehicle networking terminal in a first format, and the first format corresponds to Sending the dynamic information within the indication range corresponding to the path information to the vehicle networking terminal.
- the first indication information when the dynamic information is road-level dynamic information, includes: road marking information and content of dynamic information corresponding to the road marking information; when the dynamic information is lane In the case of level dynamic information, the first indication information includes: lane identification information and content of dynamic information corresponding to the lane identification information, wherein the lane identification information includes road information and lane information.
- the transceiver unit 603 is specifically configured to send the first indication information to the Internet of Vehicles terminal according to the first cycle when the dynamic information is low-efficiency dynamic information; When the information is high-efficiency dynamic information, when a trigger event corresponding to the dynamic information is triggered, the first indication information is sent to the vehicle networking terminal.
- the first indication information indicates the at least two associated information contents that are jointly coded.
- the scrambling codes or initialization values corresponding to the dynamic information of different high-precision maps are different.
- the processing unit 602 is configured to determine to send first indication information to the car networking terminal, where the first indication information is used to indicate dynamic information in the high-precision map, where, when the dynamic information is a road
- the first indication information includes: road identification information and content of dynamic information corresponding to the road identification information
- the first indication information includes: lane Identification information and content of the dynamic information corresponding to the lane identification information, wherein the lane identification information includes road information and lane information;
- the transceiver unit 603 is configured to send the first indication information to the vehicle networking terminal.
- the transceiver unit 603 is specifically configured to send the first indication information to the Internet of Vehicles terminal according to the first cycle when the dynamic information is low-efficiency dynamic information; when the dynamic information When the dynamic information is time-efficient, when a trigger event corresponding to the dynamic information is triggered, the first indication information is sent to the vehicle networking terminal.
- the first indication information indicates the at least two associated information contents that are jointly coded.
- the scrambling codes or initialization values corresponding to the dynamic information of different high-precision maps are different.
- an embodiment of the present application further provides an Internet of Vehicles server 700.
- the Internet of Vehicles server 700 includes a processor 710, a memory 720, and a transceiver 730.
- the memory 720 stores instructions or programs or data, and the memory 720 may be used to implement the functions of the storage unit 601 in the foregoing embodiment.
- the processor 710 is configured to read instructions or programs or data stored in the memory 720. When the instructions or programs stored in the memory 720 are executed, the processor 710 is configured to perform the operations performed by the processing unit 602 in the foregoing embodiment, and the transceiver 730 is configured to perform the operations performed by the transceiver unit 603 in the foregoing embodiment.
- the Internet of Vehicles device 600 or Internet of Vehicles server 700 in the embodiment of the present application may correspond to the Internet of Vehicles server in the dynamic information transmission method (FIG. 2 or FIG. 4) of the embodiment of the present application, and the Internet of Vehicles device 600 or Internet of Vehicles
- the operation and/or function of each module in the server 700 is to implement the corresponding process of each method in FIG. 2 or FIG. 4, and is not repeated here for brevity.
- FIG. 8 shows a possible exemplary block diagram of a car networking device involved in an embodiment of the present application, and the device 800 may exist in the form of software.
- the apparatus 800 may include: a processing unit 802 and a transceiver unit 803.
- the processing unit 802 is used to implement corresponding processing functions.
- the transceiver unit 803 is used to support communication between the device 800 and other network entities.
- the transceiving unit 803 may include a receiving unit and/or a sending unit, which are used to perform receiving and sending operations, respectively.
- the device 800 may further include a storage unit 801 for storing program codes and/or data of the device 800.
- the device 800 may be the Internet of Vehicles terminal in any of the foregoing embodiments, or may also be a component such as a chip provided in the Internet of Vehicles terminal.
- the processing unit 802 may support the device 800 to execute the actions of the car networking terminal in the above method examples.
- the processing unit 802 mainly executes the internal actions of the Internet of Vehicles terminal in the method example, and the transceiver unit 803 can support the communication between the device 800 and the Internet of Vehicles server.
- the transceiver unit 803 is configured to receive first indication information sent by the Internet of Vehicles server, where the first indication information is used to indicate dynamic information within an indication range on the high-precision map.
- the indication range is the indication range of the dynamic information in the high-precision map determined by the Internet of Vehicles server according to the route information of the navigation map;
- the processing unit 802 is configured to maintain and update the dynamic information within the indication range in the high-precision map according to the first indication information.
- the dynamic information includes at least one of traffic jam information, traffic accident information, road surface condition information, passable information, pedestrian or bicycle crossing road information, and pedestrian or motor vehicle occupation road information.
- the transceiver unit 803 is further configured to receive second instruction information sent by the Internet of Vehicles server before receiving the first instruction information sent by the Internet of Vehicles server.
- the second indication information is used to indicate that the dynamic information is associated with the path information.
- the transceiver unit 803 when receiving the first instruction information sent by the Internet of Vehicles server, is specifically configured to receive the second instruction information and the first instruction sent by the Internet of Vehicles server.
- Information the second indication information is used to indicate that the dynamic information is associated with the path information.
- the transceiver unit 803 when the transceiver unit 803 receives the first instruction information sent by the Internet of Vehicles server, it is specifically configured to receive the first instruction sent by the Internet of Vehicles server in a first format.
- the first format corresponds to the dynamic information within the indication range corresponding to the path information sent by the Internet of Vehicles server.
- the first indication information when the dynamic information is road-level dynamic information, includes: road marking information and content of dynamic information corresponding to the road marking information; when the dynamic information is In the case of lane-level dynamic information, the first indication information includes: lane identification information and content of dynamic information corresponding to the lane identification information, and the lane identification information includes road information and lane information.
- the first indication information indicates the at least two associated information contents that are jointly coded.
- the scrambling codes or initialization values corresponding to the dynamic information of different high-precision maps are different.
- the transceiver unit 803 is configured to receive first indication information sent by the Internet of Vehicles server, where the first indication information is used to indicate dynamic information in the high-precision map, where, when the dynamic information is a road
- the first indication information includes: road identification information and content of dynamic information corresponding to the road identification information
- the first indication information includes: lane Identification information and content of the dynamic information corresponding to the lane identification information, wherein the lane identification information includes road information and lane information;
- the processing unit 802 is configured to maintain and update the dynamic information in the high-precision map according to the first instruction information.
- the first indication information indicates the at least two associated information contents that are jointly coded.
- the scrambling codes or initialization values corresponding to the dynamic information of different high-precision maps are different.
- an embodiment of the present application further provides an Internet of Vehicles terminal 900.
- the Internet of Vehicles terminal 900 includes a processor 910, a memory 920, and a transceiver 930.
- the memory 920 stores instructions or programs or data, and the memory 920 may be used to implement the functions of the storage unit 801 in the foregoing embodiment.
- the processor 910 is configured to read instructions or programs or data stored in the memory 920. When the instructions or programs stored in the memory 920 are executed, the processor 910 is configured to execute the operations performed by the processing unit 802 in the foregoing embodiment, and the transceiver 930 is configured to execute the operations performed by the transceiver unit 803 in the foregoing embodiment.
- the car networking device 800 or the car networking terminal 900 of the embodiment of the present application may correspond to the car networking terminal in the dynamic information transmission method (FIG. 2 or FIG. 4) of the embodiment of the present application, and the car networking device 800 or the car networking terminal 900
- the operation and/or function of each module in the terminal 900 is to implement the corresponding process of each method in FIG. 2 or FIG. 4, and is not repeated here for brevity.
- the embodiments of the present application also provide an Internet of Vehicles device.
- the Internet of Vehicles device may be an Internet of Vehicles terminal or a circuit.
- the Internet of Vehicles device may be used to perform the actions performed by the Internet of Vehicles terminal in the foregoing method embodiments.
- FIG. 10 shows a simplified structural diagram of a car networking terminal. It is easy to understand and easy to illustrate.
- a mobile phone is taken as an example of the Internet of Vehicles terminal.
- the Internet of Vehicles terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
- the processor is mainly used to process the communication protocol and communication data, and to control the car networking terminal, execute the software program, and process the data of the software program.
- the memory is mainly used to store software programs and data.
- the radio frequency circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals.
- the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
- Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of car networking terminals may not have input and output devices.
- the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
- the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
- the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data .
- FIG. 10 only one memory and processor are shown in FIG. 10. In actual car networking terminal products, there may be one or more processors and one or more memories.
- the memory may also be referred to as a storage medium or storage device.
- the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
- the antenna and radio frequency circuit with the transceiver function can be regarded as the transceiver unit (or communication unit) of the car networking terminal, and the processor with the processing function can be regarded as the processing unit of the car networking terminal.
- the Internet of Vehicles terminal includes a transceiver unit 1010 and a processing unit 1020.
- the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
- the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
- the device for implementing the receiving function in the transceiver unit 1010 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 1010 as the sending unit, that is, the transceiver unit 1010 includes a receiving unit and a sending unit.
- the transceiver unit may sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit.
- the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
- the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
- transceiving unit 1010 is used to perform the sending and receiving operations on the IoV terminal side in the foregoing method embodiment
- processing unit 1020 is used to perform other operations on the IoV terminal in the foregoing method embodiment except for the transceiving operation.
- the transceiver unit 1010 is used to perform the sending and receiving operations on the IoV terminal side in S203 of FIG. 2, and/or the transceiver unit 1010 is also used to perform the IoV terminal side operations in the embodiment of the present application.
- the processing unit 1020 is configured to perform processing operations on the vehicle networking terminal side in S203 in FIG. 2, and/or the processing unit 1020 is also configured to perform other processing steps on the vehicle networking terminal side in the embodiment of the present application.
- the device may include a transceiver unit and a processing unit.
- the transceiving unit may be an input/output circuit and/or a communication interface;
- the processing unit is an integrated processor or microprocessor or integrated circuit.
- a computer-readable storage medium is provided with instructions stored thereon, and when the instructions are executed, the method on the vehicle networking terminal side in the foregoing method embodiment can be executed.
- a computer program product containing instructions is provided.
- the instructions are executed, the method on the vehicle networking terminal side in the foregoing method embodiment can be executed.
- a chip is provided, the chip is coupled with a memory, and is used to read and execute instructions stored in the memory.
- the Internet of Vehicles in the above method embodiment can be executed. The method on the terminal side.
- a computer-readable storage medium is provided, and an instruction is stored thereon.
- the instruction is executed, the method on the vehicle networking server side in the foregoing method embodiment can be executed.
- a computer program product containing instructions is provided.
- the instructions are executed, the method on the vehicle networking server side in the foregoing method embodiment can be executed.
- a chip is provided, the chip is coupled with a memory, and is used to read and execute instructions stored in the memory.
- the Internet of Vehicles in the above method embodiment can be executed. Server-side method.
- each step in the method provided in this embodiment can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
- the steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
- the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
- the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
- the above-mentioned processor may be a general-purpose central processing unit (central processing unit, CPU), general-purpose processor, digital signal processing (digital signal processing, DSP), application specific integrated circuits (ASIC), field programmable gate array Field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof; it can also be a combination of computing functions, such as a combination of one or more microprocessors, DSP and micro-processing The combination of the device and so on.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the memory or storage unit in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be random access memory (RAM), which is used as an external cache.
- RAM random access memory
- static random access memory static random access memory
- dynamic RAM dynamic RAM
- DRAM dynamic random access memory
- synchronous dynamic random access memory synchronous DRAM, SDRAM
- double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
- enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
- synchronous connection dynamic random access memory serial DRAM, SLDRAM
- direct rambus RAM direct rambus RAM
- the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
- software it can be implemented in the form of a computer program product in whole or in part.
- the computer program product includes one or more computer programs or instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer program or instruction may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server integrating one or more available media.
- the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; it may also be an optical medium, such as a DVD; it may also be a semiconductor medium, such as a solid state disk (SSD).
- the various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application specific integrated circuits (ASICs), and field programmable gate arrays (field programmable gate arrays). , FPGA) or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions.
- the general-purpose processor may be a microprocessor.
- the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine.
- the processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration. achieve.
- the steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
- the software unit can be stored in RAM, flash memory, ROM, EPROM, EEPROM, register, hard disk, removable disk, CD-ROM or any other storage medium in the field.
- the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium.
- the storage medium may also be integrated into the processor.
- the processor and the storage medium can be set in the ASIC, and the ASIC can be set in the car networking terminal.
- the processor and the storage medium may also be arranged in different components in the car networking terminal.
- These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
- the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
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Abstract
Description
Claims (29)
- 一种基于车联网的动态信息发送方法,其特征在于,包括:根据导航地图的路径信息,确定高精地图中动态信息的指示范围;向第二设备发送第一指示信息,所述第一指示信息用于指示高精地图中所述指示范围内的动态信息。
- 根据权利要求1所述的方法,其特征在于,向所述第二设备发送所述第一指示信息之前,所述方法还包括:向所述第二设备发送第二指示信息,所述第二指示信息用于指示所述动态信息与所述路径信息关联。
- 根据权利要求1所述的方法,其特征在于,向所述第二设备发送所述第一指示信息,包括:向所述第二设备发送第二指示信息和所述第一指示信息,所述第二指示信息用于指示所述动态信息与所述路径信息关联。
- 根据权利要求1至3中任一项所述的方法,其特征在于,向所述第二设备发送所述第一指示信息,包括:采用第一格式向所述第二设备发送所述第一指示信息,所述第一格式对应于向所述第二设备发送所述路径信息对应的所述指示范围内的所述动态信息。
- 根据权利要求1至4中任一项所述的方法,其特征在于,向所述第二设备发送所述第一指示信息,包括:当所述动态信息为低时效动态信息时,根据第一周期向所述第二设备发送所述第一指示信息;当所述动态信息为高时效动态信息时,在所述动态信息对应的触发事件被触发时,向所述第二设备发送所述第一指示信息。
- 一种基于车联网的动态信息接收方法,其特征在于,包括:接收第一设备发送的第一指示信息,所述第一指示信息用于指示高精地图中指示范围内的动态信息,所述指示范围是所述第一设备根据导航地图的路径信息,确定出的高精地图中所述动态信息的指示范围;根据所述第一指示信息,对所述高精地图中所述指示范围内的动态信息进行维护和更新。
- 根据权利要求6所述的方法,其特征在于,接收所述第一设备发送的所述第一指示信息之前,所述方法还包括:接收所述第一设备发送的第二指示信息,所述第二指示信息用于指示所述动态信息与所述路径信息关联。
- 根据权利要求6所述的方法,其特征在于,接收所述第一设备发送的所述第一指示信息,包括:接收所述第一设备发送的第二指示信息和所述第一指示信息,所述第二指示信息用于指示所述动态信息与所述路径信息关联。
- 根据权利要求6至8中任一项所述的方法,其特征在于,接收所述第一设备发送的所述第一指示信息,包括:接收所述第一设备采用第一格式发送的所述第一指示信息,所述第一格式对应于所述第一设备发送所述路径信息对应的所述指示范围内的所述动态信息。
- 根据权利要求1至9中任一项所述的方法,其特征在于,所述动态信息包括交通拥堵信息、交通事故信息、路面状况信息、可通行信息、行人或自行车穿越马路信息、行人或机动车占用马路信息中的至少一个。
- 根据权利要求1至10中任一项所述的方法,其特征在于,当所述动态信息为道路级动态信息时,所述第一指示信息包括:道路标识信息和所述道路标识信息对应的动态信息的内容;当所述动态信息为车道级动态信息时,所述第一指示信息包括:车道标识信息和所述车道标识信息对应的动态信息的内容,其中所述车道标识信息包括道路信息和车道信息。
- 根据权利要求1至11中任一项所述的方法,其特征在于,当所述动态信息包括至少两个关联的信息内容时,所述第一指示信息指示联合编码的所述至少两个关联的信息内容。
- 根据权利要求1至12中任一项所述的方法,其特征在于,不同高精地图的动态信息对应的扰码或初始化值不同。
- 一种基于车联网的第一设备,其特征在于,包括:处理器,用于根据导航地图的路径信息,确定高精地图中动态信息的指示范围;收发器,用于向车联网中的第二设备发送第一指示信息,所述第一指示信息用于指示高精地图中所述指示范围内的动态信息。
- 根据权利要求14所述的第一设备,其特征在于,所述收发器,还用于向所述第二设备发送所述第一指示信息之前;向所述第二设备发送第二指示信息,所述第二指示信息用于指示所述动态信息与所述路径信息关联。
- 根据权利要求14所述的第一设备,其特征在于,所述收发器,向所述第二设备发送所述第一指示信息时,具体用于向所述第二设备发送第二指示信息和所述第一指示信息,所述第二指示信息用于指示所述动态信息与所述路径信息关联。
- 根据权利要求14至16中任一项所述的第一设备,其特征在于,所述收发器向所述第二设备发送第一指示信息时,具体用于采用第一格式向所述第二设备发送第一指示信息,所述第一格式对应于向所述第二设备发送所述路径信息对应的所述指示范围内的所述动态信息。
- 根据权利要求14至17中任一项所述的装置,其特征在于,所述收发器,具体用于当所述动态信息为低时效动态信息时,根据第一周期向所述第二设备发送所述第一指示信息;当所述动态信息为高时效动态信息时,在所述动态信息对应的触发事件被触发时,向所述第二设备发送所述第一指示信息。
- 一种基于车联网的第二设备,其特征在于,包括:收发器,用于接收车联网中的第一设备发送的第一指示信息,所述第一指示信息用于指示高精地图中指示范围内的动态信息,所述指示范围是所述第一设备根据导航地图的路径信息,确定出的高精地图中所述动态信息的指示范围;处理器,用于根据所述第一指示信息,对所述高精地图中所述指示范围内的动态信息进行维护和更新。
- 根据权利要求19所述的第二设备,其特征在于,所述收发器,还用于在接收所 述第一设备发送的所述第一指示信息之前,接收所述第一设备发送的第二指示信息,所述第二指示信息用于指示所述动态信息与所述路径信息关联。
- 根据权利要求19所述的第二设备,其特征在于,所述收发器,在接收所述第一设备发送的第一指示信息时,具体用于接收所述第一设备发送的第二指示信息和所述第一指示信息,所述第二指示信息用于指示所述动态信息与所述路径信息关联。
- 根据权利要求19至21中任一项所述的第二设备,其特征在于,所述收发器,接收所述第一设备发送的所述第一指示信息时,具体用于接收所述第一设备采用第一格式发送的所述第一指示信息,所述第一格式对应于所述第一设备发送所述路径信息对应的所述指示范围内的所述动态信息。
- 根据权利要求14至22中任一项所述的第一设备或第二设备,其特征在于,所述动态信息包括交通拥堵信息、交通事故信息、路面状况信息、可通行信息、行人或自行车穿越马路信息、行人或机动车占用马路信息中的至少一个。
- 根据权利要求14至23中任一项所述的第一设备或第二设备,其特征在于,当所述动态信息为道路级动态信息时,所述第一指示信息包括:道路标识信息和所述道路标识信息对应的动态信息的内容;当所述动态信息为车道级动态信息时,所述第一指示信息包括:车道标识信息和所述车道标识信息对应的动态信息的内容,其中所述车道标识信息包括道路信息和车道信息。
- 根据权利要求14至24中任一项所述的第一设备或第二设备,其特征在于,当所述动态信息包括至少两个关联的信息内容时,所述第一指示信息指示联合编码的所述至少两个关联的信息内容。
- 根据权利要求14至25中任一项所述的第一设备或第二设备,其特征在于,不同高精地图的动态信息对应的扰码或初始化值不同。
- 一种车联网系统,其特征在于,包括如权利要求14-18或23-26中任一项所述的基于车联网的第一设备,及如权利要求19-26中任一项所述的基于车联网的第二设备。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质包括计算机程序,当计算机程序在被一个或多个处理器读取并执行时实现如权利要求1至13中任一项所述的方法。
- 一种芯片,其特征在于,所述芯片与存储器耦合,用于读取并执行所述存储器中存储的程序指令,实现如权利要求1至13中任一项所述的方法。
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EP4057647A1 (en) | 2022-09-14 |
JP7411803B2 (ja) | 2024-01-11 |
CN115696198A (zh) | 2023-02-03 |
JP2023503369A (ja) | 2023-01-27 |
CN112887913B (zh) | 2022-10-18 |
CN112887913A (zh) | 2021-06-01 |
CN115696199A (zh) | 2023-02-03 |
EP4057647A4 (en) | 2023-01-04 |
US20220292965A1 (en) | 2022-09-15 |
KR20220106179A (ko) | 2022-07-28 |
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