阅读说明：本技术 一种混合传统导航功能与辅助驾驶地图功能的汽车导航系统 (Automobile navigation system with mixed traditional navigation function and auxiliary driving map function ) 是由 杨扬 王玉龙 朱文超 李兵 周波 单松松 闫建杰 于 2020-05-12 设计创作，主要内容包括：本发明提供一种混合传统导航功能与辅助驾驶地图功能的汽车导航系统,涉及汽车导航系统技术领域。该混合传统导航功能与辅助驾驶地图功能的汽车导航系统,该导航系统包括数据层、业务逻辑层、交互层,所述导航系统包括传统导航模式与辅助驾驶模式两种工作模式,所述导航系统包括人工驾驶模式下工作状态及共享信息使用方案和辅助驾驶模式下工作状态及共享信息使用方案。本发明设计的汽车导航系统,使车辆在辅助驾驶过程中提高燃油经济性,在车辆处于人工驾驶时结合普通地图和ADAS地图数据规划更加合理的路线,并使引导信息播报更加详细。两个系统的混合,减少了硬件冗余,丰富了两种工况下的数据来源,同时两个工作模式的无缝切换,提高用户体验。(The invention provides a car navigation system mixing a traditional navigation function and a driving-assistant map function, and relates to the technical field of car navigation systems. The automobile navigation system with the mixed traditional navigation function and the assistant driving map function comprises a data layer, a business logic layer and an interaction layer, the navigation system comprises two working modes of a traditional navigation mode and an assistant driving mode, and the navigation system comprises a working state and shared information using scheme under a manual driving mode and a working state and shared information using scheme under the assistant driving mode. The automobile navigation system designed by the invention improves the fuel economy of the vehicle in the process of auxiliary driving, plans a more reasonable route by combining the data of a common map and an ADAS map when the vehicle is in manual driving, and enables the guidance information to be broadcasted in more detail. The two systems are mixed, so that hardware redundancy is reduced, data sources under two working conditions are enriched, and meanwhile, the seamless switching of the two working modes improves user experience.)

1. A car navigation system that mixes traditional navigation function and driver assistance map function which characterized in that: the navigation system comprises a data layer, a service logic layer and an interaction layer; the data layer is a data support layer of the system and mainly provides road network data used for planning and ADAS map data required for assisting a driving process; the business logic layer is a core layer of the system and is used for finishing logic processing and calculation of the system; and the interaction layer is divided into interaction between the system and the user and interaction between the systems.

2. The car navigation system mixing the conventional navigation function with the driving assistance map function according to claim 1, wherein: the business logic layer comprises a traditional navigation engine module, an auxiliary driving engine module and a communication module; the traditional navigation engine module is used for planning a route with fuel economy by utilizing road network data of a common map and gradient and curvature data of roads in ADAS map data; the auxiliary driving engine module is used for predicting route planning and extracting ADAS map data; and the communication module is used for realizing information communication between the traditional navigation and the driving assistance functions.

3. The car navigation system mixing the conventional navigation function with the driving assistance map function according to claim 1, wherein: the interaction layer comprises a graphical interface display module, a voice broadcast module and an ADAS map communication interface; the graphical interface display module is used for providing image guidance for a user during common navigation; the voice broadcasting module is used for providing voice guidance for a user during ordinary navigation; and the ADAS map communication interface is used for performing data interaction on the front path information and the auxiliary driving control execution system in a specified message format and providing ADAS map data support for auxiliary driving decision.

4. A car navigation system mixing a conventional navigation function with a driving assistance map function according to claims 1 to 3, characterized in that: the navigation system comprises a traditional navigation mode and an auxiliary driving mode.

5. The car navigation system mixing the conventional navigation function with the driving-assist map function as claimed in claims 1 to 4, wherein: the traditional navigation mode comprises the functions of planning, map browsing, peripheral retrieval, voice broadcast guidance, danger warning and the like of the conventional automobile navigation system.

6. The car navigation system mixing the conventional navigation function with the driving assistance map function according to claim 1, wherein: the auxiliary driving mode comprises the functions of predicting route planning, driving space-time trajectory planning, predicting cruise data support, danger warning information communication and the like.

7. The car navigation system mixing the conventional navigation function with the driving-assist map function as recited in claims 1 to 6, wherein: the navigation system comprises a working state and shared information using scheme in a manual driving mode and a working state and shared information using scheme in an auxiliary driving mode.

8. The car navigation system mixing the conventional navigation function with the driving-assistance map function according to claim 7, wherein: the specific contents of the working state and the shared information using scheme in the manual driving mode are as follows:

in the manual driving mode, the system is in a traditional navigation working mode, the system mainly works by traditional navigation, driving support is provided for a driver through interface interaction and voice interaction modes, an auxiliary driving engine runs at a background, and an ADAS map data communication interface keeps communication silence; and simultaneously, navigating a shared planning route to an assistant driving engine, if the ADAS map data exists in the road section, analyzing whether the current vehicle driving state is reasonable or not by the engine according to the ADAS map data, reminding a driver to avoid possible dangers in advance in a voice broadcasting mode, if the driver does not process the map information in time, sending the map information through an ADAS map data communication interface, and performing assistant acceleration and deceleration or turning control by an assistant driving decision system.

9. The car navigation system mixing the conventional navigation function with the driving-assistance map function according to claim 7, wherein: the specific contents of the working state and the shared information using scheme in the auxiliary driving mode are as follows:

under the auxiliary driving mode, the system is in an auxiliary driving working mode, an auxiliary driving engine predicts a route by using traditional navigation shared route information or a path prediction scheme, and sends vehicle position information and front road section detailed information in real time through a communication interface to provide data support for pre-deceleration and steering assistance of a vehicle; meanwhile, the assistant driving system monitors whether the front road section supports assistant driving in real time, reminds a driver to take over the control of the vehicle in advance in a voice mode, and the system is switched into a traditional navigation mode.

Technical Field

The invention relates to the technical field of automobile navigation systems, in particular to an automobile navigation system with a traditional navigation function and a driving assistance map function.

Background

At present, partial auxiliary driving functions are realized, an auxiliary system can sense environmental information of a vehicle within a certain range by relying on sensors such as a camera and a radar of the vehicle body, and partial auxiliary control of the vehicle can be completed according to lane information and the dynamic conditions of surrounding vehicles within a visible range.

The traditional automobile navigation market has developed to be mature, and can provide routes and guide support for drivers under various working conditions. Under the condition of auxiliary driving, information collected by a vehicle-mounted sensor is mostly used as data support, an auxiliary driving system generally cannot well utilize ADAS map data and route and guide information planned by a navigation system, and a man-machine dual-purpose navigation map software product with complete functions does not exist.

The vehicle with the auxiliary driving function in the current market only has one or more driving auxiliary functions, auxiliary control of the vehicle is not completed according to the driving intention of a driver and road information outside the sight distance, the function of realizing auxiliary driving is single and limited, and a navigation system product special for auxiliary driving is not provided. The common map used by the traditional navigation product can not meet the precision requirement of the auxiliary driving, and the navigation technical scheme can not meet the functional requirement of the auxiliary driving. In addition, in the vehicle with the driving assistance function, the map navigation and driving assistance system is installed on respective hardware equipment, so that the waste of hardware resources is caused, and the interaction of necessary information is lost.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the automobile navigation system mixing the traditional navigation function and the driving assistance map function, and solves the problems of single function, poor user experience and hardware resource waste of the driving assistance system in the prior navigation system.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a car navigation system mixing a traditional navigation function and a driving-assistant map function comprises a data layer, a business logic layer and an interaction layer.

The data layer is a data support layer of the system and mainly provides road network data used for planning and ADAS map data required for assisting a driving process;

the business logic layer is a core layer of the system and is used for finishing logic processing and calculation of the system;

and the interaction layer is divided into interaction between the system and the user and interaction between the systems.

Preferably, the business logic layer comprises a traditional navigation engine module, an auxiliary driving engine module and a communication module.

The traditional navigation engine module is used for planning a route with fuel economy by utilizing road network data of a common map and gradient and curvature data of roads in ADAS map data;

the auxiliary driving engine module is used for predicting route planning and extracting ADAS map data;

and the communication module is used for realizing information communication between the traditional navigation and the driving assistance functions.

Preferably, the interaction layer comprises a graphical interface display module, a voice broadcast module and an ADAS map communication interface.

The graphical interface display module is used for providing image guidance for a user during common navigation;

the voice broadcasting module is used for providing voice guidance for a user during ordinary navigation;

and the ADAS map communication interface is used for performing data interaction on the front path information and the auxiliary driving control execution system in a specified message format and providing ADAS map data support for auxiliary driving decision.

Preferably, the navigation system comprises two working modes, namely a traditional navigation mode and an auxiliary driving mode.

Preferably, the conventional navigation mode includes functions of planning, map browsing, peripheral retrieval, voice broadcast guidance, danger warning, and the like of the existing car navigation system.

Preferably, the auxiliary driving mode comprises functions of predictive route planning, driving space-time trajectory planning, predictive cruise data support, danger warning information communication and the like.

Preferably, the navigation system comprises a working state and shared information using scheme in a manual driving mode and a working state and shared information using scheme in an auxiliary driving mode.

Preferably, the specific content of the operating state and the shared information using scheme in the manual driving mode is as follows:

in the manual driving mode, the system is in a traditional navigation working mode, the system mainly works through traditional navigation, driving support is provided for a driver through interface interaction and voice interaction modes, an assistant driving engine runs in a background, an ADAS map data communication interface keeps communication silence, a shared planning route is navigated to the assistant driving engine, if ADAS map data exist in the road section, the engine analyzes whether the current vehicle driving state is reasonable or not according to the ADAS map data, and reminds the driver to avoid possible dangers in advance through a voice broadcast mode, if the driver does not process timely, map information is sent through the ADAS map data communication interface, and assistant driving decision-making system performs assistant acceleration and deceleration or turning control.

Preferably, the specific content of the operating state and the shared information using scheme in the driving assistance mode is as follows:

in the auxiliary driving mode, the system is in an auxiliary driving working mode, an auxiliary driving engine predicts a route by using traditional navigation shared route information or a path prediction scheme, and sends vehicle position information and front road section detailed information in real time through a communication interface to provide data support for pre-deceleration and steering assistance of a vehicle, meanwhile, the auxiliary driving system monitors whether the front road section supports auxiliary driving in real time, reminds a driver to take over control of the vehicle in advance in a voice mode, and the system is switched into the traditional navigation mode.

(III) advantageous effects

The invention provides a car navigation system mixing a traditional navigation function and a driving-assistant map function. The method has the following beneficial effects:

the invention provides a car navigation system with functions of mixing traditional navigation guidance and an assistant driving map, which can improve the fuel economy of a car in the assistant driving process on the current assistant driving car partially depending on ADAS map data and under the road type covered by partial ADAS map data, plan a more reasonable route by combining a common map and the ADAS map data when the car is in manual driving, and enable the guidance information to be broadcasted in more detail. The two systems are mixed, so that hardware redundancy is reduced, data sources under two working conditions are enriched, and meanwhile, the seamless switching of the two working modes improves user experience.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a flow chart of the present invention;

FIG. 3 is a schematic diagram of a predicted path scheme according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

Example (b):

as shown in fig. 1 to 3, an embodiment of the present invention provides a car navigation system that mixes a conventional navigation function and a driving assistance map function, and the car navigation system includes a data layer, a business logic layer, and an interaction layer.

The data layer is a data support layer of the system and mainly provides road network data used for planning and ADAS map data required for assisting a driving process;

the business logic layer is a core layer of the system and is used for finishing logic processing and calculation of the system;

and the interaction layer is divided into interaction between the system and the user and interaction between the systems.

The business logic layer comprises a traditional navigation engine module, a driving assistance engine module and a communication module.

The traditional navigation engine module is used for planning a route with fuel economy by utilizing road network data of a common map and gradient and curvature data of roads in ADAS map data;

the auxiliary driving engine module is used for predicting route planning and extracting ADAS map data;

and the communication module is used for realizing information communication between the traditional navigation and the driving assistance functions.

The interaction layer comprises a graphical interface display module, a voice broadcast module and an ADAS map communication interface.

The graphical interface display module is used for providing image guidance for a user during common navigation;

the voice broadcasting module is used for providing voice guidance for a user during ordinary navigation;

and the ADAS map communication interface is used for performing data interaction on the front path information and the auxiliary driving control execution system in a specified message format and providing ADAS map data support for auxiliary driving decision.

The navigation system comprises a traditional navigation mode and an auxiliary driving mode.

The traditional navigation mode comprises functions of planning, map browsing, peripheral retrieval, voice broadcast guidance, danger warning and the like of the conventional automobile navigation system.

The auxiliary driving mode comprises the functions of predicting route planning, planning space-time trajectory of driving, supporting predictive cruise data, communicating danger warning information and the like

The route planning is predicted, and the function comprises two planning states, namely a roaming state and a guiding state. When the navigation is in a roaming state, predicting a driving route from the current position of the vehicle according to the historical driving route, driving habits and road section information of the driving direction of a user, and when the navigation is in a guiding state, sharing the optimal path within a certain distance to an auxiliary driving system in real time by the navigation;

planning a driving space-time trajectory, namely matching information such as a high-precision vehicle position, a lane where the vehicle is located, a road section type, a vehicle body posture and the like by using ADAS map data according to a vehicle body positioning communication module, and sending the information to an auxiliary driving decision system to be used as a static reference trajectory for driving behavior decision;

the method comprises the steps of predictive cruise data support, wherein according to a task route, the gradient, curvature and course change of a road within a certain distance in front of a vehicle are extracted from ADAS map data, and data support is provided for a predictive cruise control strategy;

the communication of the danger warning information provides detailed information such as speed limit of a road ahead, danger warning, electronic eyes, intersections and the like according to the position, the state and the road ahead information of the vehicle.

The navigation system comprises a working state and shared information using scheme in a manual driving mode and a working state and shared information using scheme in an auxiliary driving mode.

The specific contents of the working state and the shared information using scheme in the manual driving mode are as follows:

in the manual driving mode, the system is in a traditional navigation working mode, the system mainly works through traditional navigation, driving support is provided for a driver through interface interaction and voice interaction modes, an assistant driving engine runs in a background, an ADAS map data communication interface keeps communication silence, a shared planning route is navigated to the assistant driving engine, if ADAS map data exist in the road section, the engine analyzes whether the current vehicle driving state is reasonable or not according to the ADAS map data, and reminds the driver to avoid possible dangers in advance through a voice broadcast mode, if the driver does not process timely, map information is sent through the ADAS map data communication interface, and assistant driving decision-making system performs assistant acceleration and deceleration or turning control.

The specific contents of the working state and the shared information using scheme in the auxiliary driving mode are as follows:

in the auxiliary driving mode, the system is in an auxiliary driving working mode, the auxiliary driving engine predicts a route by using the traditional navigation shared route information or a path prediction scheme, and sends the position information of the vehicle and the detailed information of the front road section in real time through a communication interface, so that data support is provided for pre-deceleration and steering assistance of the vehicle. Meanwhile, the assistant driving system monitors whether the front road section supports assistant driving in real time, reminds a driver to take over the control of the vehicle in advance in a voice mode, and the system is switched into a traditional navigation mode.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.