CN114013451A

CN114013451A - Auxiliary driving method of vehicle and related product

Info

Publication number: CN114013451A
Application number: CN202111438873.7A
Authority: CN
Inventors: 戈燕
Original assignee: Shenzhen Zhibangban Information Technology Development Co ltd
Current assignee: Shenzhen Zhibangban Information Technology Development Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-02-08

Abstract

The present disclosure provides a method of assisted driving of a vehicle and related products, the method comprising the steps of: the method comprises the steps that a vehicle-mounted terminal collects the current state of a vehicle, and if the current state of the vehicle is an auxiliary driving state, the navigation path of the vehicle is obtained; the method comprises the steps that a vehicle-mounted terminal extracts a first link identification corresponding to a high-speed change point in a navigation path, periodically collects the current coordinate of a vehicle, and obtains a second link identification of the current coordinate; and the vehicle-mounted terminal extracts at least one link identifier between the second link identifier and the first link identifier from the navigation path, calculates the distance X of the at least one link identifier, and sends prompt information for prompting a driver to execute lane change operation if the distance X belongs to a set interval. The technical scheme that this application provided has the advantage that the degree of experience is high of driving.

Description

Auxiliary driving method of vehicle and related product

Technical Field

The invention relates to the technical field of intelligent driving, in particular to an auxiliary driving method of a vehicle and a related product.

Background

The international grades of automatic driving are divided into five grades of L1, L2, L3, L4 and L5, L1, the auxiliary driving is realized, the self-adaptive cruise is relied on, the feet are released, but the hands can not leave the steering wheel, and the driver still needs to operate the automobile; l2, semi-automatic driving, but the driver needs to continuously monitor the driving condition of the automobile; l3, high automatic driving, the driver does not need to continuously monitor the automobile (can see the mobile phone), but in some cases, the driver needs to intervene in the driving of the automobile according to the requirements of the system; l4 higher level autopilot, where the system controls the car automatically, e.g. in case of high speed/parking lot, without the driver having to monitor the car; l5 highest level of automatic driving.

Self-driving automobiles (also known as unmanned automobiles and computer-driven automobiles); the automatic driving automobile depends on the cooperation of artificial intelligence, visual calculation, radar, monitoring device and global positioning system, so that the computer can operate the motor vehicle automatically and safely without any active operation of human.

The existing automatic driving is generally automatic driving at the level of L1, which is also called auxiliary driving, and the existing auxiliary driving cannot prompt in lane change, so that the driving experience of a user is influenced.

Disclosure of Invention

The embodiment of the invention provides an auxiliary driving method of a vehicle and a related product, which can realize the advance reminding during lane change and improve the driving experience of a user.

In a first aspect, an embodiment of the present invention provides a driving assistance method for a vehicle, including:

the method comprises the steps that a vehicle-mounted terminal collects the current state of a vehicle, and if the current state of the vehicle is an auxiliary driving state, the navigation path of the vehicle is obtained;

the method comprises the steps that a vehicle-mounted terminal extracts a first link identification corresponding to a high-speed change point in a navigation path, periodically collects the current coordinate of a vehicle, and obtains a second link identification of the current coordinate;

and the vehicle-mounted terminal extracts at least one link identifier between the second link identifier and the first link identifier from the navigation path, calculates the distance X of the at least one link identifier, and sends prompt information for prompting a driver to execute lane change operation if the distance X belongs to a set interval.

In a second aspect, there is provided a driving assistance system for a vehicle, the system comprising:

the acquisition unit is used for acquiring the current state of the vehicle;

the processing unit is used for acquiring a navigation path of the vehicle if the current state of the vehicle is the driving assisting state; extracting a first link identification corresponding to a high-speed change point in a navigation path, periodically acquiring the current coordinate of a vehicle, and acquiring a second link identification of the current coordinate; and extracting at least one link identifier between the second link identifier and the first link identifier from the navigation path, calculating the distance X of the at least one link identifier, and if the distance X belongs to a set interval, sending prompt information by the vehicle-mounted terminal, wherein the prompt information is used for prompting a driver to execute lane change operation.

In a third aspect, a computer-readable storage medium is provided, which stores a program for electronic data exchange, wherein the program causes a terminal to execute the method provided in the first aspect.

The embodiment of the invention has the following beneficial effects:

according to the technical scheme, the vehicle-mounted terminal acquires the current state of the vehicle, and acquires the navigation path of the vehicle if the current state of the vehicle is the driving assistance state; the method comprises the steps that a vehicle-mounted terminal extracts a first link identification corresponding to a high-speed change point in a navigation path, periodically collects the current coordinate of a vehicle, and obtains a second link identification of the current coordinate; and the vehicle-mounted terminal extracts at least one link identifier between the second link identifier and the first link identifier from the navigation path, calculates the distance X of the at least one link identifier, and sends prompt information for prompting a driver to execute lane change operation if the distance X belongs to a set interval. Through the arrangement, in actual auxiliary driving, when the vehicle is away from the high-speed change point by a proper distance (namely, the vehicle belongs to a set interval), the prompt message is sent, so that the situation that the vehicle cannot be changed too soon due to insufficient distance is avoided, a user cannot be changed to a right lane in advance due to too far distance is avoided, and the driving experience of the user is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic configuration diagram of a vehicle-mounted terminal.

Fig. 2 is a flowchart of a driving assistance method of a vehicle.

Fig. 3 is a schematic structural diagram of a driving assistance system of a vehicle according to an embodiment of 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 some, not all, embodiments of the present invention. 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.

The terms "first," "second," "third," and "fourth," etc. in the description and claims of the invention and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, result, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 provides a vehicle-mounted terminal, where the vehicle-mounted terminal may specifically be a tablet computer, a computer, or a server installed on a vehicle, and the vehicle-mounted terminal may be a terminal of an IOS system, an android system, or the like, and may also be a terminal of another system, such as a hong meng system, and the application does not limit the specific system, and the vehicle-mounted terminal may specifically include: the device comprises a processor, a memory, a camera and a display screen, wherein the above components may be connected through a bus or in other ways.

For example, the camera may be installed at different positions of the vehicle, such as at the side, front, rear, etc. of the vehicle, according to different driving manners, and the application is not limited to the specific installation position of the camera. The above-mentioned in-vehicle terminal may further include: and the communication component can be a communication antenna or a communication module.

The auxiliary driving of the vehicle is divided into a plurality of grades, the auxiliary driving is generally configured on a new energy vehicle at present, such as a pure electric vehicle, the auxiliary driving is also generally used on a high-speed or express way, and particularly, the auxiliary driving can well reduce the fatigue of the long-term driving when the auxiliary driving is driven on the long-term express way. In the auxiliary driving, the vehicle generally does not have the lane changing function, that is, the vehicle can run in one lane for acceleration, deceleration, constant speed cruising and other types, and the running state can be cancelled when the driver participates in the driving, but the existing auxiliary driving can not remind the user of performing lane changing treatment, and the situation is particularly serious when high speed is required or other high speeds are required, because the domestic vehicle runs on the right side, in order to not influence the running of the vehicle on the right side, the vehicle for auxiliary driving generally runs on the lane close to the left side, taking the conventional 3 lanes in the current high speed as an example, because the high speed is required to be adjusted to the rightmost lane and even to the expanded lane on the right side, the vehicle needs to change the lane from the lane of the leftmost lane to the rightmost lane in a short time, and because the low speed in the traffic rules, the lane changing function is performed on the right side, The long solid line is generally arranged at the road junction where the vehicle turns at a high speed to prohibit lane changing, so that when the vehicle needs to drive in an auxiliary mode and the driver needs to turn at the high speed or turn at the high speed, the distance cannot be guaranteed to change from the leftmost lane to the rightmost lane, and the safety and the experience of the driver are further influenced.

Referring to fig. 2, fig. 2 provides a driving assistance method for a vehicle, which is performed by the in-vehicle terminal shown in fig. 1, as shown in fig. 2, and includes the steps of:

step S201, a vehicle-mounted terminal collects the current state of a vehicle, and if the current state of the vehicle is an auxiliary driving state, a navigation path of the vehicle is obtained;

step S202, the vehicle-mounted terminal extracts a first link identification corresponding to a high-speed change point in the navigation path, periodically collects the current coordinate of the vehicle, and acquires a second link identification of the current coordinate;

for example, the high-speed change point may specifically include: the starting point of the lower expressway ramp, the starting point of the transfer expressway ramp, and the like.

And S203, the vehicle-mounted terminal extracts at least one link identifier between the second link identifier and the first link identifier from the navigation path, calculates the distance X of the at least one link identifier, and sends prompt information for prompting a driver to execute lane change operation if the distance X belongs to a set interval.

The setting interval may be specifically: 1 km to 1.5 km, but of course also 0.8 km to 1.2 km.

For example, the setting interval may be further adjusted according to the current speed, and a specific adjustment manner may be that, if the current speed exceeds the preset speed, the setting interval is multiplied by a coefficient k (a coefficient greater than 1) to obtain an adjusted setting interval, where k = the current speed/the preset speed.

For example, the method may further include:

if the distance X does not fall within the set interval, the operation of step S202 is continued.

For example, the sending of the prompt information by the vehicle-mounted terminal may specifically include:

the vehicle-mounted terminal sends out voice prompt information, head-up display information or other prompt information (such as vibrating a steering wheel and the like).

For example, the method may further include, before step S202:

when the in-vehicle terminal determines that the vehicle is in the leftmost lane, step S202 is performed.

For example, the manner in which the vehicle-mounted terminal determines that the vehicle is in the leftmost lane may specifically include:

and the vehicle-mounted terminal extracts the position information of other vehicles in the previous period of time, and if the other vehicles in the previous period of time are all positioned on the right side or the front of the display screen, the vehicle is determined to be positioned in the leftmost lane.

The previous period of time may be the first 10 minutes, the first 5 minutes, etc.

For example, the other vehicle position information may be implemented by an on-vehicle sensor, and the on-vehicle sensor may specifically be: a camera (assisted driving based on visual calculations, e.g. tesla) or a laser sensor (assisted driving with radar, e.g. xiao peng).

The method is based on the principle that if a vehicle is located in the leftmost lane at high speed, other vehicles only appear in the front or the right, the position information of the vehicle-mounted terminal extracted in the previous period of time meets the front or the right, and the opposite vehicle at high speed cannot be detected due to the fact that the opposite vehicle has the isolation belt, so that whether the opposite vehicle belongs to the leftmost lane or not can be determined in the situation.

Referring to fig. 3, fig. 3 provides a driving assistance system of a vehicle, the system including:

the acquisition unit 301 is used for acquiring the current state of the vehicle;

the processing unit 302 is configured to obtain a navigation path of the vehicle if the current state of the vehicle is the driving assistance state; extracting a first link identification corresponding to a high-speed change point in a navigation path, periodically acquiring the current coordinate of a vehicle, and acquiring a second link identification of the current coordinate; and extracting at least one link identifier between the second link identifier and the first link identifier from the navigation path, calculating the distance X of the at least one link identifier, and if the distance X belongs to a set interval, sending prompt information by the vehicle-mounted terminal, wherein the prompt information is used for prompting a driver to execute lane change operation.

Alternatively to this, the first and second parts may,

the processing unit is specifically configured to send one or a combination of voice prompt information and head-up display information.

Alternatively to this, the first and second parts may,

the processing unit is further configured to execute an operation of extracting a first link mark corresponding to a high-speed change point in the navigation path when it is determined that the vehicle is located in the leftmost lane.

Alternatively to this, the first and second parts may,

the processing unit is specifically configured to extract position information of other vehicles in a previous period of time, and determine that the vehicle is located in a leftmost lane if the other vehicles in the previous period of time are all located on the right side or in front of the display screen.

Embodiments of the present invention also provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program makes a computer execute part or all of the steps of any one of the driving assistance methods for a vehicle as recited in the above method embodiments.

Embodiments of the present invention also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any one of the vehicle driving assistance methods as set forth in the above method embodiments.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may be performed in other orders or concurrently according to the present invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are exemplary embodiments and that the acts and modules illustrated are not necessarily required to practice the invention.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of a receiving hardware or a receiving software program module.

The integrated units, if implemented in the form of software program modules and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a memory and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

The above embodiments of the present invention are described in detail, and the principle and the implementation of the present invention are explained by applying specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A driving assist method of a vehicle, characterized by comprising the steps of:

2. The method according to claim 1, wherein the sending of the prompt message by the vehicle-mounted terminal specifically comprises:

the vehicle-mounted terminal sends out one or a combination of voice prompt information and head-up display information.

3. The method according to claim 1, before the vehicle-mounted terminal extracts the first link identification corresponding to the high-speed change point in the navigation path, the method further comprises:

and when the vehicle-mounted terminal determines that the vehicle is in the leftmost lane, the operation of extracting the first link mark corresponding to the high-speed change point in the navigation path is executed.

4. The method according to claim 3, wherein the vehicle-mounted terminal determines the manner in which the vehicle is in the leftmost lane specifically comprises:

5. A driving assistance system for a vehicle, characterized in that the system comprises:

the acquisition unit is used for acquiring the current state of the vehicle;

6. The system of claim 5,

7. The system of claim 5,

8. The system of claim 7,

9. A computer-readable storage medium storing a program for electronic data exchange, wherein the program causes a terminal to perform the method as provided in any one of claims 1-4.