CN114136307B

CN114136307B - Full-automatic map updating method for vehicle navigation system

Info

Publication number: CN114136307B
Application number: CN202111488249.8A
Authority: CN
Inventors: 熊春; 吴文斌; 徐志俊; 张丹
Original assignee: SAIC Volkswagen Automotive Co Ltd
Current assignee: SAIC Volkswagen Automotive Co Ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2024-01-26
Anticipated expiration: 2041-12-07
Also published as: CN114136307A

Abstract

The invention provides a full-automatic map updating method for an on-board navigation system, which comprises the following steps: step S11, updating cloud map version; step S12, the car navigation system automatically determines whether the names of the cities of the home and the company are available If so, automatically updating the map of the city in which the home and company are located; step S13, in the list of remaining cities excluding the cities in which the home and company are located, continuing to determine whether or not to include surrounding cities of the home and company If so, continuing to step S14, and if not, not updating; and step S14, updating is determined according to the state of the vehicle and whether the vehicle is currently in the surrounding city range of the home and the company. The invention can solve the problems of complex operation and need of users waiting for updating, so that the users do not need any operation in the whole navigation map updating process, the noninductive updating is realized, and the navigation map of the users is kept in the latest state at all times.

Description

Full-automatic map updating method for vehicle navigation system

Technical Field

The invention mainly relates to navigation map updating, in particular to a full-automatic map updating method for a vehicle navigation system.

Background

In many vehicles and mobile terminal devices, for example in tablet computers or smart phones, digital navigation maps are used for navigating along a determined or selected route during a movement of a user of the respective vehicle or of the respective mobile terminal device from a starting point to a target point. In particular vehicles with partially or fully automatic driving functions (autonomous driving) rely on high-precision digital navigation maps.

In order to safely navigate a user of a vehicle or a mobile terminal device at any time, it is necessary to always keep a digital navigation map stored in a control device of the vehicle or in the mobile terminal device in an up-to-date state. This may be accomplished by continually updating the digital navigation map. For this purpose, newer versions of the digital navigation map are usually transmitted by the backend system via a wireless connection to the control device or mobile terminal device of the vehicle.

For the best possible timeliness, the digital navigation map is updated automatically, that is to say without active participation of the user, as soon as a newer version is available on the backend system. However, the navigation functions or other functions of the vehicle or mobile terminal device may be affected when updating is performed during the movement of the user of the vehicle or mobile terminal device. This is unacceptable for safety critical functions of the vehicle.

To avoid affecting vehicle functions during driving, the digital navigation map may be updated during the parking phase. However, transmitting the newer version of the digital navigation map into the control device of the vehicle and updating the digital navigation map stored in the control device of the vehicle consumes electrical energy retrieved from the battery of the vehicle. Therefore, there is a risk that the battery is discharged due to updating of the digital navigation map during the parking of the vehicle, so that the electric energy remaining in the battery after the updating is insufficient to start the vehicle.

In addition, if the duration of the parking phase is insufficient to completely update the digital navigation map, undefined intermediate states of the digital navigation map may occur in the control device of the vehicle. In an undefined intermediate state, the stored digital navigation map may not be available, requiring repeated updates.

Document DE 10 2015 014 049 A1 therefore discloses a method for updating software which is stored in a control device of a vehicle. In this method, the updating of the software is performed during the parking phase of the vehicle in order to exclude the influence of the updating on the control device during the driving of the vehicle. The energy demand for the update is first predicted and the energy reserve of the vehicle is determined. The software is updated in such a way that the energy reserve minus the predicted energy requirement is not below the determined minimum energy level. Further, the time requirements for the update may be predicted and the parking behavior of the driver of the vehicle determined. The software is updated when the learned parking duration is greater than the predicted time requirement.

Another problem with digital navigation maps is that it is very costly to detect changing environmental and road conditions, generate correspondingly matched newer versions of the digital navigation maps, and provide these digital navigation maps in time for transmission. Therefore, the latest version of the digital navigation map provided will also typically be different from the actual surrounding environment and road conditions.

To reduce this difference, document DE 10 2012 212 740 A1 discloses a system and method for updating a digital navigation map. The system includes a plurality of vehicles each including a control device having a digital navigation map transmitted by the back-end server and stored in the control device, and at least one environmental sensor and/or vehicle sensor, and a back-end server providing the digital navigation map for transmission. In the method, ambient data and/or vehicle data are detected with sensors and transmitted to a backend server. The back-end server determines a difference between the provided navigation map and the environmental data and/or vehicle data transmitted by the vehicle and updates the provided navigation map according to the determined difference, which is then transmitted into the control device of the vehicle.

Digital navigational maps typically have a large amount of data due to the large area of the imaged area and the corresponding large amount of detail. Accordingly, a complete update of the digital navigation map requires a lot of time and furthermore results in high costs, especially when using a mobile radio connection. Accordingly, it is desirable to reduce the cost of updating digital navigation maps.

Thus, document EP 1 870 671 A1 discloses a system and method for updating a digital navigation map comprising a plurality of square map sections arranged in a grid. The system includes a vehicle having a control device and a digital navigation map stored in the control device, and a back-end server having a navigation map stored in the back-end server. Immediately after the vehicle starts, the control apparatus requests, from the backend server, updated information about a determined square area having a determined place, such as a residence place entered by the driver of the vehicle or a destination entered by the driver, approximately at the center thereof. The backend server then transmits difference information with updated map segments for the particular square area to the control device. Based on the difference information, the control device first requests an updated map section of the central square sub-area with a reduced priority, then respectively requests the central sub-area of the surrounding annular sub-area surrounding the residence, and acquires a corresponding updated map section transmitted from the backend server.

In this approach, the backend server may be heavily loaded when many vehicles request updated map segments at the same time. Further, if the vehicle driver does not input a changed residence or destination, the back-end server may actually send an undesirable map segment. Furthermore, the method uses a mobile radio network as an update path, which in certain areas does not provide sufficient quality.

Moreover, for most users, the OTA update of the generic navigation map is compared, the user operation steps comprising: 1. finding a related menu; 2. manually clicking the related city to start updating; 3. waiting for the update to complete.

The updating operation is complex, and the user is required to wait for the updating to be completed, so that the updating of the navigation map can not be completed for the user unfamiliar with the navigation menu or time emergency, and the user experience is affected.

Disclosure of Invention

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the disclosure.

In order to solve the technical problems, the invention provides a full-automatic map updating method for an on-board navigation system, which is characterized by comprising the following steps:

step S11, updating cloud map version;

step S12, the car navigation system automatically determines whether the names of the cities of the home and the company are available? If so, automatically updating the map of the city in which the home and company are located;

step S13, in the list of remaining cities excluding the cities in which the home and company are located, continuing to determine whether or not to include surrounding cities of the home and company? If so, continuing to step S14, and if not, not updating;

and step S14, updating is determined according to the state of the vehicle and whether the vehicle is currently in the surrounding city range of the home and the company.

Preferably, the invention further discloses a full-automatic map updating method for a vehicle navigation system, which is characterized in that the step S14 further comprises:

and under the condition that the vehicle is not in navigation guidance, judging whether the vehicle is currently located in the surrounding city and region, if so, updating the map of the surrounding city and region, and if not, not updating.

if the vehicle is in a navigation guidance situation, determine if a navigation route is routed through the surrounding city and region? If yes, updating, if not, not updating.

Preferably, the invention further discloses a full-automatic map updating method for a vehicle navigation system, which is characterized in that the step S14 further comprises the following steps:

determining whether a navigation destination is in the surrounding city and region? If not, no update is made, and if so, the update is made.

Preferably, the invention further discloses a full-automatic map updating method for the vehicle navigation system, which is characterized by further comprising the step of performing map switching after the map updating is completed, wherein the map switching comprises the following steps:

and under the condition that the vehicle is not in navigation guidance, the switching is hidden in the starting page to be automatically switched.

and under the condition that the vehicle is in navigation guidance, determining a switching time according to the distance between the current position of the vehicle and the boundary line of the destination city.

Preferably, the invention further discloses a full-automatic map updating method for a vehicle navigation system, which is characterized in that the switching time further comprises:

when the distance between the current position of the vehicle and the boundary line of the destination city is larger than a set value and flameout occurs, automatically switching the map in a startup page;

and when flameout does not occur, continuing to detect the distance between the current position of the vehicle and the destination city boundary line until the distance between the current position of the vehicle and the destination city boundary line is smaller than the set value, prompting a user to switch the map, and when the user accepts the map, switching the map, and when the user does not accept the map, switching the map to be flameout.

Preferably, the invention further discloses a full-automatic map updating method for the vehicle navigation system, which is characterized in that in the step S11, the cloud comprises map data of all cities of the whole country updated from time to time.

Preferably, the invention further discloses a full-automatic map updating method for the vehicle navigation system, which is characterized in that the set value is 5 km.

Compared with the prior art, the invention has the following advantages:

the invention can solve the problems of complex operation and need of users waiting for updating, so that the users do not need any operation in the whole navigation map updating process, the noninductive updating is realized, and the navigation map of the users is kept in the latest state at all times.

Drawings

Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

Furthermore, although terms used in the present disclosure are selected from publicly known and commonly used terms, some terms mentioned in the present disclosure may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present disclosure is understood, not simply by the actual terms used but by the meaning of each term lying within.

The above and other objects, features and advantages of the present invention will become apparent to those skilled in the art from the following detailed description of the present invention with reference to the accompanying drawings.

FIG. 1 is a flow chart of an implementation of vehicle navigation map updating without using navigation in accordance with the present invention;

FIG. 2 is a flow chart of an implementation of the update of a vehicle navigation map in the case of using navigation in accordance with the present invention;

fig. 3 is a flow chart of an implementation of map switching in accordance with the present invention.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are used in the description of the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is obvious to those skilled in the art that the present application may be applied to other similar situations according to the drawings without inventive effort. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application. Furthermore, although terms used in the present application are selected from publicly known and commonly used terms, some terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present application be understood, not simply by the actual terms used but by the meaning of each term lying within.

Flowcharts are used in this application to describe the operations performed by systems according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in order precisely. Rather, the various steps may be processed in reverse order or simultaneously. At the same time, other operations are added to or removed from these processes.

Example 1

Referring to fig. 1, a flow for implementing automatic update of a vehicle navigation map is shown, where the flow is applied to route guidance where a user does not use a navigation map:

step S11, the cloud map is updated with versions (map data of all cities in the country are uniformly updated to the cloud);

step S12, the car navigation system automatically determines whether the names of the cities of the home and the company are available? If so, turning to step S16, and updating map data of the corresponding city;

step S13, in the city list remaining after excluding the cities of the home and the company, continuing to determine whether there are surrounding cities and regions of the home and the company? If not, go to step S15;

step S14, if a surrounding city and region of the home and company can be obtained, continuing to determine whether the current vehicle is located in the surrounding city and region? If located in the surrounding city and region, go to step S16;

step S15, the map of surrounding cities and areas of the home and the company is not updated;

in step S16, the background automatically updates the map data of the corresponding city.

The step S16 specifically includes:

if yes, the background automatically updates the map of the city where the home and the company are located;

if yes in step S14, the background automatically updates the map of the city and area around the home and company where the vehicle is located at that time.

It should be noted that in the preferred embodiment, the surrounding cities and regions are those centered around home and company, and within 600 KM.

The map navigation automatic updating idea is to grade the driving area of the user under the condition of not using navigation. The corresponding three types are: frequent driving, occasional driving, and unusual driving. The highest grade is the unconditional automatic update of the frequent driving place; for even driving, a judging condition is added, namely whether the current vehicle is located at the ground or not, if so, the vehicle is updated, and if not, the vehicle is not necessary to be updated. While for unusual driving, the level is lowest, and is also considered unnecessary and not updated.

Example two

Fig. 2 shows a flow for automatically updating a car navigation map in a navigation state, which is different from the first embodiment in that the flow is applied to a route guidance scene where a user is using the car navigation map.

Step S21, updating the cloud map version;

step S22, the car navigation system automatically determines whether there is a city name of home and company? If available, go to step S28;

step S23, in the list of remaining cities excluding cities in which the home and company are located, continuing to determine whether there are surrounding cities and regions of the home and company? If not, go to step S25;

step S24, if the surrounding cities and regions of the home and company can be obtained, continuing to determine whether the navigation guidance route passes through the surrounding cities and regions of the home and company? If yes, go to step S28;

step S25, further determining whether the navigation destination is in the surrounding city and region? If not, go to step S27, if yes, go to step S28;

step S26, if the navigation guidance route does not pass through the surrounding cities and regions of the map-updated home and company, continuing to determine whether the destination is in the surrounding cities and regions of the map-updated home and company? If not, go to step S27, if yes, go to step S28;

step S27, the map data of the city and the region of the judgment object is not updated;

the case of no update involves: excluding home and company, excluding city and area around home and company where the vehicle is not located at that time, and excluding simultaneously satisfying not navigation destination+non-navigation route point.

Step S28, updating map data of the city and region to be determined.

The case of updating according to this step involves: home and company, city and area surrounding the home and company where the vehicle is located at the time, route of navigation route, and navigation destination.

The map navigation automatic updating idea is to grade the driving area of the user in a dynamic environment. The corresponding three types are: frequent driving ground and guide line driving ground. The highest grade is the unconditional automatic update of the frequent driving place; and updating the navigation route points or the destination.

Example III

After map updating according to the used/unused navigation shown in fig. 1 and 2, respectively, the switching timing of the vehicle-mounted map interface has the following cases:

when no route guidance exists, i.e. under a static environment, the switching of updating the map occurs at the time of starting up, i.e. after starting up, the map is switched to be updated.

The method is characterized in that when route guidance exists, namely, the automobile runs and is in a dynamic environment for navigation, the method comprises the following steps:

step S31, cloud map updating occurs in the vehicle navigation system;

step S32, judging the distance D between the vehicle and the city boundary line where the destination is located at the moment;

step S33, judging the relation between the distance D and the set value N;

step S34, when the distance D > the set value N, continue to determine whether the user has flameout?

Step S35, if flameout occurs in step S34, switching is immediately performed, and the switching time is hidden in the starting page;

step S36, if the step S34 does not flameout, returning to the step S32, and continuing to acquire the distance D from the vehicle to the destination city;

step S37, when the distance D is less than or equal to the set value N, indicating that the vehicle is about to enter a destination city of the updated map;

step S38, according to step S26 of fig. 2, the update map is downloaded, and the interface prompts the user to immediately switch the updated map?

Step S39, if the user accepts, the switch is made immediately;

step S40, if the user refuses, switching is performed at the next ignition time, and the switching time is hidden in the starting page.

In the preferred embodiment, the set point N is 5KM, which theoretically indicates that a new city is about to be entered.

For example, if the user starts from the Shanghai to Nanjing, referring to fig. 2, the background has updated the city Nanjing of the destination, and the city map of the city su, wuxi …, etc., the map interface is not switched immediately during the running of the vehicle, but when the distance from the Wuxi is smaller than the set value N, it indicates that the vehicle will enter Wuxi, prompts the user whether the user needs to switch, if the user agrees, the updated map is switched immediately, if the user does not agree, the user can go to, for example, a service area, and the user can switch when the user fires next time.

In addition, in the above determination as to whether it is a home or a company, various methods may be employed including: 1. manually entered by a user; 2. machine learning: that is, the control system screens out invalid/dirty data according to the flameout, ignition position and time information of the user's vehicle, analyzes the user's behavior, and finally counts out the cities (home/company city), which the user frequently drives, the cities (home/company surrounding city) which are occasionally driven, and the cities (other cities) which are not frequently driven.

In summary, the invention provides a full-automatic map updating method for an on-vehicle navigation system, which can solve the problem that a user cannot smoothly complete map updating due to complex OTA updating operation of a current navigation map. According to the invention, through learning user behaviors, cities which are frequently driven by users (cities where home/companies are located), cities which are occasionally driven (cities around home/companies) and cities which are not frequently driven (other cities) can be analyzed, classification processing is carried out according to the learned results of the users and scenes with and without guide routes, and the users can ensure that the local navigation map is in the latest state without any operation or waiting in the whole updating process. On the basis of the original OTA scheme, the method omits all user operations, can automatically update the navigation map completely without sense, and ensures that the offline map of the user is kept in the latest state at all times.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the above disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations of the present application may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this application, and are therefore within the spirit and scope of the exemplary embodiments of this application.

Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the present application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present application may be combined as suitable.

Some aspects of the present application may be performed entirely by hardware, entirely by software (including firmware, resident software, micro-code, etc.) or by a combination of hardware and software. The above hardware or software may be referred to as a "data block," module, "" engine, "" unit, "" component, "or" system. The processor may be one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital signal processing devices (DAPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, or a combination thereof. Furthermore, aspects of the present application may take the form of a computer product, comprising computer-readable program code, embodied in one or more computer-readable media. For example, computer-readable media can include, but are not limited to, magnetic storage devices (e.g., hard disk, floppy disk, tape … …), optical disk (e.g., compact disk CD, digital versatile disk DVD … …), smart card, and flash memory devices (e.g., card, stick, key drive … …).

The computer readable medium may comprise a propagated data signal with the computer program code embodied therein, for example, on a baseband or as part of a carrier wave. The propagated signal may take on a variety of forms, including electro-magnetic, optical, etc., or any suitable combination thereof. A computer readable medium can be any computer readable medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code located on a computer readable medium may be propagated through any suitable medium, including radio, cable, fiber optic cable, radio frequency signals, or the like, or a combination of any of the foregoing.

Likewise, it should be noted that in order to simplify the presentation disclosed herein and thereby aid in understanding one or more inventive embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof. This method of disclosure, however, is not intended to imply that more features than are presented in the claims are required for the subject application. Indeed, less than all of the features of a single embodiment disclosed above.

In some embodiments, numbers describing the components, number of attributes are used, it being understood that such numbers being used in the description of embodiments are modified in some examples by the modifier "about," approximately, "or" substantially. Unless otherwise indicated, "about," "approximately," or "substantially" indicate that the number allows for a 20% variation. Accordingly, in some embodiments, numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by the individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and employ a method for preserving the general number of digits. Although the numerical ranges and parameters set forth herein are approximations that may be employed in some embodiments to confirm the breadth of the range, in particular embodiments, the setting of such numerical values is as precise as possible.

While the present application has been described with reference to the present specific embodiments, those of ordinary skill in the art will recognize that the above embodiments are for illustrative purposes only, and that various equivalent changes or substitutions can be made without departing from the spirit of the present application, and therefore, all changes and modifications to the embodiments described above are intended to be within the scope of the claims of the present application.

Claims

1. The full-automatic map updating method for the vehicle navigation system is applied to a vehicle and is characterized by comprising the following steps of:

step S11, updating cloud map version;

step S14, determining updating according to the state of the vehicle and whether the vehicle is currently in the range of the surrounding cities of the home and the company; wherein, the step S14 further includes:

judging whether the vehicle is currently located in the surrounding city and region or not under the condition that the vehicle is not in navigation guidance, if so, updating the map of the surrounding city and region, and if not, not updating;

wherein, the step S14 further includes:

if the vehicle is in a navigation guidance situation, determine if a navigation route is routed through the surrounding city and region? If yes, updating, if not, not updating;

and performing the map switching after the map updating is completed, wherein the map switching comprises:

determining switching time according to the distance between the current position of the vehicle and a destination city boundary line under the condition that the vehicle is in navigation guidance;

the switching opportunity further includes:

2. The fully automatic map updating method of a car navigation system according to claim 1, wherein the step S14 further comprises:

3. The fully automatic map updating method for a car navigation system according to claim 1, further comprising performing the map switching after the map updating is completed, the map switching comprising:

4. The method for automatically updating a map of a car navigation system according to claim 1, wherein,

in step S11, the cloud end includes map data of all cities of the whole country updated from time to time.

5. The method for automatically updating a map of a car navigation system according to claim 4, wherein,

the set value is 5 km.