CN112732859A

CN112732859A - Prompt information generation method and device, electronic equipment and storage medium

Info

Publication number: CN112732859A
Application number: CN202110098236.3A
Authority: CN
Inventors: 高璇
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-04-30
Anticipated expiration: 2041-01-25
Also published as: CN112732859B

Abstract

The application discloses a prompt message generation method, a prompt message generation device, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring a planning path message of a target vehicle; selecting a turning road intersection area corresponding to the target vehicle from the acquired road intersection areas; collecting road characteristics corresponding to roads adjacent to each road intersection area; identifying an adjacent road intersection area with the same turning direction as the turning road intersection area in the adjacent road intersection area corresponding to the turning road intersection area based on the planned route and the road characteristics to obtain a similar road intersection area corresponding to the turning road intersection area; the prompt information of the similar road intersection area is generated and output, and the scheme can improve the accuracy of identifying the similar road intersection area, so that the prompt information displayed in the map is higher in accuracy.

Description

Prompt information generation method and device, electronic equipment and storage medium

Technical Field

The present application relates to the field of computer technologies, and in particular, to a method and an apparatus for generating a prompt message, an electronic device, and a storage medium.

Background

With the development of the internet, internet applications are affecting aspects of individual users. Navigation applications have become essential software for users to travel. The traffic conditions of modern large cities are very complex, and users may encounter a similar road intersection area (similar intersection) which causes confusion when driving vehicles, so that misjudgment of the users is easily caused, and further, the users need to plan a route again for driving.

At present, the method for identifying similar road intersection areas is based on the geometric shape of the road intersection areas, that is, whether adjacent road intersection areas in the same direction as the turning direction exist, but the accuracy for identifying the similar road intersection areas is low.

Disclosure of Invention

The application provides a prompt message generation method, a prompt message generation device, electronic equipment and a storage medium, which can improve the accuracy of identifying similar road intersection areas, thereby improving the accuracy of prompt messages.

The application provides a prompt message generation method, which comprises the following steps:

acquiring planned path information of a target vehicle, wherein the planned path information comprises a planned route of the target vehicle and a road intersection area through which the target vehicle passes in the driving process;

selecting a turning road intersection area corresponding to the target vehicle from the acquired road intersection areas, wherein the turning road intersection area is a road intersection area where the target vehicle needs to perform turning operation;

collecting road characteristics corresponding to roads adjacent to each road intersection area;

identifying an adjacent road intersection area with the same turning direction as the turning road intersection area in the adjacent road intersection area corresponding to the turning road intersection area based on the planned route and the road characteristics to obtain a similar road intersection area corresponding to the turning road intersection area, wherein the adjacent road intersection area is a road intersection area adjacent to the turning road intersection area;

and generating and outputting prompt information of the similar road intersection area.

Correspondingly, the present application further provides a prompt information generating device, including:

the system comprises an acquisition module, a display module and a control module, wherein the acquisition module is used for acquiring planned path information of a target vehicle, and the planned path information comprises a planned route of the target vehicle and a road intersection area which the target vehicle passes through in the driving process;

the selection module is used for selecting a turning road intersection area corresponding to the target vehicle from the acquired road intersection areas, wherein the turning road intersection area is a road intersection area where the target vehicle needs to execute turning operation;

the acquisition module is used for acquiring road characteristics corresponding to roads adjacent to each road intersection area;

the identification module is used for identifying an adjacent road intersection area with the same turning direction as the turning road intersection area in the adjacent road intersection area corresponding to the turning road intersection area based on the planned route and the road characteristics to obtain a similar road intersection area corresponding to the turning road intersection area, wherein the adjacent road intersection area is a road intersection area adjacent to the turning road intersection area;

and the generating module is used for generating and outputting prompt information of the similar road intersection area.

Optionally, in some embodiments of the present application, the identification module includes:

the identification submodule is used for identifying the steering of the adjacent road intersection area according to the planned route;

and the determining submodule is used for determining the adjacent road intersection area with the same steering direction as the similar road intersection area corresponding to the turning road intersection area based on the road characteristics when the situation that the steering direction of the adjacent road intersection area is the same as the steering direction of the turning road intersection area is identified.

Optionally, in some embodiments of the present application, the determining sub-module includes:

the generation unit is used for generating the steering grade of the adjacent road intersection area according to the road characteristics of the adjacent steering road corresponding to the adjacent road intersection area when the fact that the steering of the adjacent road intersection area is the same as the steering of the steering road intersection area is recognized;

the first determining unit is used for determining an adjacent road intersection area corresponding to an adjacent turning road with the turning grade greater than or equal to a preset grade as a similar road intersection area corresponding to the turning road intersection area.

Optionally, in some embodiments of the present application, the determining unit includes:

the determining subunit is used for determining a corresponding turning road after the turning road intersection region turns;

the generating subunit is configured to generate a similarity degree between the adjacent road intersection area and the diverted road intersection area according to the road characteristics of the adjacent diverted road corresponding to the adjacent road intersection area and the road characteristics of the diverted road;

the obtaining subunit is used for obtaining a mapping relation between a preset steering grade and the similarity degree to obtain a first mapping relation;

and the mapping subunit is configured to map the similarity degree to a corresponding steering grade based on the first mapping relationship, so as to obtain the steering grade of the adjacent road intersection region.

Optionally, in some embodiments of the present application, the generating subunit is specifically configured to:

extracting the road grade and the road attribute of the turning road from the road characteristics of the turning road to obtain a first road grade and a first road attribute;

extracting the road grade and the road attribute of the adjacent turning road from the road characteristics of the adjacent turning road to obtain a second road grade and a second road attribute;

and generating the similarity between the adjacent road intersection area and the turning road intersection area according to the first road grade, the first road attribute, the second road grade and the second road attribute.

Optionally, in some embodiments of the present application, the identifier module includes:

the second determining unit is used for determining a road intersection area adjacent to the turning road intersection area within a preset range according to the planned route to obtain an adjacent road intersection area of the adjacent road intersection area corresponding to the turning road intersection area;

the acquisition unit is used for acquiring the corresponding steering road after the adjacent road intersection area is steered to obtain the adjacent steering road corresponding to the adjacent road intersection area;

the third determining unit is used for determining the road connected with the planned route and the adjacent road interaction area to obtain a traveling road;

and the identification unit is used for identifying the steering of the adjacent road intersection area according to the included angle between the adjacent steering road and the advancing road.

Optionally, in some embodiments of the present application, the identification unit is specifically configured to:

calculating an included angle between the adjacent steering road and the advancing road;

acquiring a mapping relation between an included angle between the adjacent turning road and the traveling road and turning to obtain a second mapping relation;

and obtaining the steering of the adjacent road intersection area based on the second mapping relation and the included angle between the adjacent steering road and the advancing road.

Optionally, in some embodiments of the present application, the selection module is specifically configured to:

and determining the area with the angle change in the acquired road intersection area as a steering road intersection area corresponding to the target vehicle.

Optionally, in some embodiments of the present application, the generating module is specifically configured to:

and generating and displaying prompt information of the similar road intersection area according to the distance between the similar road intersection area and the turning road intersection area.

After the planning path information of the target vehicle is obtained, the planning path information includes a planning route of the target vehicle and a road intersection area through which the target vehicle passes in the driving process, a turning road intersection area corresponding to the target vehicle is selected from the obtained road intersection areas, the turning road intersection area is a road intersection area in which the target vehicle needs to perform turning operation, then road characteristics corresponding to roads adjacent to each road intersection area are collected, then, based on the planning route and the road characteristics, an adjacent road intersection area which turns the same as the turning road intersection area is identified in the adjacent road intersection area corresponding to the turning road intersection area, a similar road intersection area corresponding to the turning road intersection area is obtained, and the adjacent road intersection area is a road intersection area adjacent to the turning road intersection area, finally, the prompt information of the similar road intersection area is generated and output, in the prompt information generation scheme provided by the application, the similar road intersection area corresponding to the turn road intersection area is identified based on the planned route and the road characteristics, and then the prompt information of the similar road intersection area is generated and output, namely, when the planned route is generated, the corresponding prompt information can be generated according to the road characteristics of the similar road intersection area, so that the problem that the similar road intersection area is judged inaccurately only according to the shape of the road intersection area is avoided, therefore, the accuracy of identifying the similar road intersection area is improved, and the accuracy of the prompt information is improved.

Drawings

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

Fig. 1a is a scene schematic diagram of a prompt message generation method provided in the present application;

FIG. 1b is a schematic flow chart of a prompt message generation method provided in the present application;

fig. 1c is a schematic diagram of a mapping relationship between a steering angle and a steering direction in the prompt information generation method provided by the present application;

fig. 1d is a schematic diagram illustrating a turn direction of the identified road junction area a in the prompt information generation method provided by the present application;

FIG. 2 is another schematic flow chart diagram of a prompt message generation method provided in the present application;

fig. 3 is a schematic structural diagram of a prompt message generation device provided in the present application;

fig. 4 is a schematic structural diagram of an electronic device provided in the present application.

Detailed Description

The technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

The application provides a prompt message generation method, a prompt message generation device, electronic equipment and a storage medium.

The prompt information generating device may be specifically integrated in a terminal or a server, and the terminal may be a smart phone, a tablet computer, a notebook computer, a desktop computer, a smart speaker, a smart watch, or a vehicle only, but is not limited thereto. The terminal and the server may be directly or indirectly connected through a wired or wireless communication manner, where the server may be an independent physical server, may also be a server cluster or a distributed system formed by a plurality of physical servers, and may also be a cloud server that provides basic cloud computing services such as a cloud service, a cloud database, cloud computing, a cloud function, cloud storage, a network service, cloud communication, a middleware service, a domain name service, a security service, a CDN, and a big data and artificial intelligence platform, and the application is not limited herein.

For example, referring to fig. 1a, the present application provides a prompt information generating device integrated in a mobile phone, wherein a user navigates through the mobile phone when traveling, first, the mobile phone obtains planned route information of a target vehicle, the planned route information including a planned route of the target vehicle and a road intersection area through which the target vehicle passes during traveling, then, the mobile phone selects a turning road intersection area corresponding to the target vehicle from the obtained road intersection areas, the turning road intersection area being a road intersection area where the target vehicle needs to perform a turning operation, next, the mobile phone collects road characteristics corresponding to roads adjacent to each road intersection area, then, the mobile phone identifies an adjacent road intersection area where turning is the same as the turning road intersection area in an adjacent road intersection area corresponding to the turning road intersection area based on the planned route and the road characteristics, and finally, generating and outputting prompt information of the similar road intersection area by the mobile phone, for example, displaying the prompt information of 'going straight through the front intersection and then turning right at the next intersection' on a screen of the mobile phone.

The prompt information generation method provided by the application identifies the similar road intersection area corresponding to the turning road intersection area based on the planned route and the road characteristics, then generates and outputs the prompt information of the similar road intersection area, namely, when the planned route is generated, the corresponding prompt information can be generated according to the road characteristics of the similar road intersection area, and the problem that the judgment of the similar road intersection area is inaccurate due to the fact that the shape of the similar road intersection area is only the basis is avoided, so that the accuracy of identifying the similar road intersection area is improved, and the accuracy of the prompt information is improved.

The following are detailed below. It should be noted that the description sequence of the following embodiments is not intended to limit the priority sequence of the embodiments.

A prompt message generation method comprises the following steps: the method comprises the steps of obtaining planned path information of a target vehicle, selecting a turning road intersection area corresponding to the target vehicle from the obtained road intersection areas, collecting road characteristics corresponding to roads adjacent to each road intersection area, identifying adjacent road intersection areas turning to the same direction as the turning road intersection area in the adjacent road intersection areas corresponding to the turning road intersection areas on the basis of the planned route and the road characteristics, obtaining similar road intersection areas corresponding to the turning road intersection areas, and generating and outputting prompt information of the similar road intersection areas.

Referring to fig. 1b, fig. 1b is a schematic flow chart of a prompt message generation method provided in the present application. The specific process of the prompt information generation method can be as follows:

101. and acquiring the planned path information of the target vehicle.

The planned path information includes a planned route of a target vehicle and a road intersection region through which the target vehicle passes in the driving process, the road intersection region refers to a road intersection, commonly called a crossing, and specifically, the planned path information of the target vehicle can be obtained from an application client of the planned path, and also can be connected with a server, the planned path information of the target vehicle can be obtained from the server, and the planned path information of the target vehicle can be directly or indirectly connected with the server in a wired or wireless communication mode, which is specifically determined according to actual conditions and is not repeated herein.

102. And selecting a turning road intersection area corresponding to the target vehicle from the acquired road intersection areas.

The turn road intersection region is a road intersection region where the target vehicle needs to perform a turning operation, for example, specifically, an area where an angle change occurs in the acquired road intersection region is determined as the turn road intersection region, that is, optionally, in some embodiments, the step "select a turn road intersection region corresponding to the target vehicle in the acquired road intersection region" may specifically be: and determining the area with the angle change in the acquired road intersection area as a steering road intersection area corresponding to the target vehicle.

Specifically, whether an included angle between the current driving direction of the target vehicle and the driving direction at the previous moment is greater than or equal to a preset included angle is calculated, and when the calculated included angle between the current driving direction of the target vehicle and the driving direction at the previous moment is greater than or equal to the preset included angle, the area with the changed angle is determined as the turning road intersection area. In order to reduce the calculation amount, the obtained road intersection areas are used as a reference, the position of each road intersection area corresponding to the planned route is determined, whether the angle change occurs at the determined position of the planned route is calculated, and when the angle change occurs at the determined position of the planned route and the changed angle is larger than or equal to the preset included angle, the area with the changed angle is determined as the turning road intersection area.

It should be noted that the mapping relationship between the steering angle and the steering direction may be pre-established, and the steering direction corresponding to the steering angle may be determined according to the mapping relationship in specific use, for example, please refer to fig. 1c, in this application, the steering direction is divided into: the vehicle steering system comprises a left turning direction, a left front direction, a right turning direction, a right back direction, a turning around direction and a left back direction, wherein each steering direction corresponds to an included angle in an interval range, for example, the steering direction corresponding to 60-135 degrees is the right turning direction, and the directions mentioned in the application all use the driving direction of a target vehicle as a reference.

103. Road characteristics corresponding to roads adjacent to each road intersection area are collected.

As mentioned above, the intersection region is commonly referred to as an intersection, which is a junction of roads, wherein the intersection may include a "T-shaped" intersection, a "Y-shaped" intersection and an intersection, and the types of roads adjacent to different types of intersections are also different, for example, at an expressway on a national road, the road on which the target vehicle travels before entering the expressway is a national road, the road on which the target vehicle travels after passing through the expressway is a highway, and the road characteristics corresponding to the two roads are different, for example, there is no traffic light on the expressway, and step 104 is executed after the road characteristics corresponding to the roads adjacent to each intersection region are collected.

104. And identifying the adjacent road intersection area with the same turning direction as the turning road intersection area in the adjacent road intersection area corresponding to the turning road intersection area based on the planned route and the road characteristics to obtain the similar road intersection area corresponding to the turning road intersection area.

Wherein the adjacent intersection area is an intersection area adjacent to the diverted intersection area, for example, the turn of the adjacent intersection area can be identified according to the planned route and the road characteristics, specifically, the intersection area adjacent to the diverted intersection area is determined according to the planned route, then, the turn of the adjacent intersection area is identified based on the road characteristics of the adjacent intersection area, for example, the corresponding turn can be determined according to the included angle between the roads corresponding to the adjacent intersection area, and finally, the adjacent intersection area which turns the same as the diverted intersection area is determined as a similar intersection area, i.e., optionally, in some embodiments, the step "identifies the adjacent intersection area which turns the same as the diverted intersection area in the adjacent intersection area corresponding to the diverted intersection area based on the planned route and the road characteristics, obtaining a similar road intersection region corresponding to the turn road intersection region "may specifically include:

(11) identifying the steering of the adjacent road intersection area according to the planned route and the road characteristics;

(12) and when the condition that the steering of the adjacent road intersection area is the same as the steering of the steering road intersection area is identified, determining the adjacent road intersection area with the same steering as a similar road intersection area corresponding to the steering road intersection area based on the road characteristics.

It should be noted that, if the distance between the adjacent intersection area and the turning intersection area is too large, in this application, the turning of the adjacent intersection area is not recognized, because when the distance between the adjacent intersection area and the turning intersection area is too large, the user can easily distinguish the area that needs to be turned (i.e., the turning intersection area), that is, optionally, in some embodiments, the step "recognizing the turning of the adjacent intersection area according to the planned route and the road characteristics" may specifically include:

(21) determining a road intersection region adjacent to the turning road intersection region within a preset range according to the planned route to obtain an adjacent road intersection region of the adjacent road intersection region corresponding to the turning road intersection region;

(22) acquiring corresponding steering roads after steering of adjacent road intersection areas to obtain adjacent steering roads corresponding to the adjacent road intersection areas;

(23) determining roads connected with the planned route and the adjacent road interaction area to obtain a traveling road;

(24) and identifying the steering of the adjacent road intersection area according to the included angle between the adjacent steering road and the advancing road.

For example, specifically, a road intersection region adjacent to the turn road intersection region within 400 meters is determined according to the planned route, the determined adjacent road intersection region includes a road intersection region a, a road intersection region B and a road intersection region C, the road intersection region a is taken as an example for specific description, please refer to fig. 1d, the distance between the road intersection region a and the turn road intersection region is 100 meters, and for a user driving a vehicle, the road intersection region is a road intersection region which is easy to be confused, therefore, the turn road a corresponding to the turn road intersection region a after the turn road intersection region a is turned can be collected, and the road B connecting the planned route and the road intersection region a is determined, the turn of the road intersection region a is identified according to the included angle between the road a and the road B, as shown in the figure, the included angle between the road a and the road B is 90 degrees, as can be known according to the previous embodiment, the turning of the road intersection region is right turning, that is, optionally, in some embodiments, the step "identifying the turning of the adjacent road intersection region according to an included angle between the adjacent turning road and the traveling road" may specifically include:

(31) calculating an included angle between an adjacent turning road and a traveling road;

(32) acquiring a mapping relation between an included angle between an adjacent turning road and a traveling road and turning to obtain a second mapping relation;

(33) and obtaining the steering of the adjacent road intersection area based on the second mapping relation and the included angle between the adjacent steering road and the advancing road.

Further, after determining the turning direction of the adjacent intersection region, a corresponding turning level may be generated according to the road characteristics of the adjacent intersection region, and when the turning level is greater than or equal to a preset level, the turning level is determined as the similar intersection region, that is, optionally, in some embodiments, the step "when it is recognized that the turning direction of the adjacent intersection region is the same as the turning direction of the turning intersection region, determining the adjacent intersection region turning the same as the turning direction as the similar intersection region corresponding to the turning intersection region based on the road characteristics" may specifically include:

(41) when the fact that the steering of the adjacent road intersection area is the same as the steering of the turning road intersection area is recognized, the turning grade of the adjacent road intersection area is generated according to the road characteristics of the adjacent turning road corresponding to the adjacent road intersection area;

(42) and determining an adjacent road intersection area corresponding to the adjacent turning road with the turning grade greater than or equal to the preset grade as a similar road intersection area corresponding to the turning road intersection area.

It should be noted that, in the present application, the steering rank is used to measure the degree to which the intersection area may be steered, where the steering rank may include five ranks 1, 2, 3, 4, and 5, where a rank 5 is the highest steering rank, a steering rank of the steered intersection area is 5, and a steering rank of the similar intersection area is 4, for example, a steering rank of the steered intersection area a is 3, a steering rank of the steered intersection area B is 2, a steering rank of the steered intersection area C is 1, and a preset rank is 2, and then the steered intersection area a and the steered intersection area B are determined as the similar intersection area in the present application.

There may be various ways to generate the turn level, for example, the similarity between the turn intersection region and the adjacent intersection region may be calculated, and specifically, the similarity may be calculated based on the shape between the intersection regions and the road information (such as the road level and the presence or absence of traffic light information) between the intersection regions, but in an actual situation, the road of lower road rank after the turn is distinguishable to the user, and therefore, in this application, and also takes the corresponding steering road after the steering road intersection region is steered and the road characteristics of the adjacent steering road into consideration to generate the steering grade of the adjacent road intersection region, that is, optionally, in some embodiments, the step "generating the turning rank of the adjacent road intersection area according to the road characteristics of the adjacent turning road corresponding to the adjacent road intersection area" may specifically include:

(51) determining a corresponding turning road after the turning road intersection region is turned;

(52) generating a similarity degree between the adjacent road intersection area and the turning road intersection area according to the road characteristics of the adjacent turning roads corresponding to the adjacent road intersection area and the road characteristics of the turning roads;

(53) acquiring a mapping relation between a preset steering grade and the similarity degree to obtain a first mapping relation;

(54) and mapping the similarity degree to the corresponding steering grade based on the first mapping relation to obtain the steering grade of the adjacent road intersection area.

In the present application, a steered road refers to a road into which a target vehicle enters after performing a steering operation in a steered road intersection area, where road characteristics include road grades and road attributes, and since the properties and functions of roads are different, it is impossible to grade all roads by using a unique standard, and therefore, in current practice in various countries, the road types are generally classified first, and then the grades are classified according to the technical standards of various roads. Grade express way, main road, secondary road and branch road four-grade. According to the use characteristics of roads, China can be divided into urban roads, highways, factory roads, forest roads and rural roads. Except for accurate grading standards for highways and urban roads, the grades of forest roads, factory roads and country roads are generally not graded. An urban road refers to a road having certain technical conditions and facilities in the urban area. According to the status, action and traffic function of roads in urban road systems and the service function of buildings along the lines, China divides urban roads into four categories: fast road, main road, secondary road and branch road. The express way is arranged in a super-large city or a big city, the central separation belt is used for separating uplink vehicles and downlink vehicles, the express way is special for automobiles, and the express way is mainly used for connecting main areas and urban areas of urban areas, main suburbs of urban areas, satellite towns and main outward roads, bearing main passenger and freight traffic of the city and has higher speed and large traffic capacity. The main road is a framework of an urban road network, and is a traffic main road which is in contact with main industrial areas, residential areas, ports, airports, stations and other freight centers of the city and bears main traffic tasks of the city. Excessive pedestrian and vehicle entrances are not suitable to be built on two sides of the main road along the line, otherwise, the speed of the vehicle is reduced. The secondary main road is a common traffic main road in the urban area, and is matched with the main road to form an urban main road network, so that the functions of linking all parts and collecting and distributing are realized, and the traffic load of the main road is shared. The secondary trunk road has a service function, allows public buildings attracting people to be arranged on two sides, and is provided with a parking lot. The branch is a connecting line between the secondary main road and the street roads, is arranged for solving the traffic of local areas, and mainly has a service function. Some main branches can be provided with public transport lines or bicycle special lanes, and the branches are not suitable for cross traffic. The road attributes include information such as road width, road driving direction, road traffic time, passable vehicles on the road, and traffic lights on the road, so that it can be seen that the similarity of two road intersection regions can be measured according to the road grade and the road attributes, that is, optionally, in some embodiments, the step "generating the similarity between an adjacent road intersection region and a diverted road intersection region according to the road characteristics of an adjacent diverted road corresponding to the adjacent road intersection region and the road characteristics of the diverted road" may specifically include:

(61) extracting the road grade and the road attribute of the turning road from the road characteristic of the turning road to obtain a first road grade and a first road attribute, and extracting the road grade and the road attribute of the adjacent turning road from the road characteristic of the adjacent turning road to obtain a second road grade and a second road attribute;

(62) and generating the similarity between the adjacent road intersection area and the turning road intersection area according to the first road grade, the first road attribute, the second road grade and the second road attribute.

For example, when the target vehicle is running at a high speed, the target vehicle will exit the high speed and enter a national road at a turn road intersection region T, an adjacent road intersection region S is located at the turn road intersection region T, and the adjacent road intersection region S is a road intersection region entering another high speed, that is, the road grade of the road entering through the adjacent road intersection region S is different from the road grade of the road entering through the turn road intersection region T, and at this time, the user can perceive the road, so in this application, the adjacent road intersection region S is not a similar road region.

For another example, when the target vehicle is traveling at a high speed, it will exit the high speed and enter a national road at the turn road intersection area T, the turn road intersection area T has an adjacent road intersection area D, which is a road entering a village, that is, the road grade of the road entering through the adjacent road intersection area D is lower than the road grade of the road entering through the turn road intersection area T, and at this time, the user can perceive the road, so in this application, the road passing through the adjacent road intersection area D is not a similar road area.

For another example, the target vehicle travels on a national road, turns right to enter another national road in the turn road intersection region T, and has an adjacent road intersection region S before the target vehicle passes through the turn road intersection region T, where the adjacent road intersection region S is a road entering the national road, that is, the road grade of the road entering the adjacent road intersection region S is the same as the road grade of the road entering the turn road intersection region T, so in this application, the road passing the adjacent road intersection region S is a similar road region.

105. And generating and outputting prompt information of the similar road intersection area.

The corresponding prompt information can be generated according to the distance between the similar road intersection area and the turning road intersection area, and displayed so that a user can know that the prompt information can carry the distance between the similar road intersection area and the turning road intersection area.

For example, specifically, the distance between the similar intersection area and the turn intersection area is 400 meters, a prompt message may be generated according to the distance, and the prompt message is displayed to the user as "pass through the current intersection area, and then turn right after 400 meters.

In the embodiment of the application, after the planning path information of the target vehicle is acquired, a turning road intersection area corresponding to the target vehicle is selected from the acquired road intersection areas, then the road characteristics corresponding to roads adjacent to each road intersection area are acquired, next, the adjacent road intersection area with the same turning direction as the turning road intersection area is identified in the adjacent road intersection area corresponding to the turning road intersection area based on the planning path and the road characteristics, the similar road intersection area corresponding to the turning road intersection area is obtained, finally, the prompt information of the similar road intersection area is generated and output, in the prompt information generation scheme provided by the application, the similar road intersection area corresponding to the turning road intersection area is identified based on the planning path and the road characteristics, and then the prompt information of the similar road intersection area is generated and output, that is, when the planned route is generated, the corresponding prompt information can be generated according to the road characteristics of the similar road intersection area, and the problem that the judgment of the similar road intersection area is inaccurate only according to the shape of the road intersection area is avoided, so that the accuracy of identifying the similar road intersection area is improved, and the accuracy of the prompt information is improved.

Further, the present embodiment will be described from the viewpoint of the prompt information generation apparatus being integrated in a terminal.

Referring to fig. 2, a method for generating a prompt message may specifically include the following steps:

201. the terminal acquires the planned path information of the target vehicle.

The planned path information includes a planned route of a target vehicle and a road intersection region where the target vehicle passes in the driving process, the road intersection region refers to a road intersection, commonly called as a road junction, and specifically, the terminal can acquire the planned path information of the target vehicle from an application client of the planned path.

202. And selecting a turning road intersection area corresponding to the target vehicle from the road intersection areas acquired by the terminal.

For example, specifically, the terminal may calculate whether an angle between the current driving direction of the target vehicle and the driving direction at the previous time is greater than or equal to a preset angle, and when the terminal calculates that the angle between the current driving direction of the target vehicle and the driving direction at the previous time is greater than or equal to the preset angle, determine the area where the angle changes as the turn road junction area. In order to reduce the calculation amount, the terminal determines the position of each road intersection area corresponding to the planned route by taking the road intersection area which can be acquired by the terminal as a reference, calculates whether the angle change occurs at the determined position of the planned route, and determines the area with the changed angle as the turning road intersection area when the angle change occurs at the determined position of the planned route and the changed angle is greater than or equal to the preset included angle.

203. The terminal collects road characteristics corresponding to roads adjacent to each road intersection area.

204. And the terminal identifies an adjacent road intersection area with the same turning direction as the turning road intersection area in the adjacent road intersection area corresponding to the turning road intersection area based on the planned route and the road characteristics to obtain a similar road intersection area corresponding to the turning road intersection area.

The terminal may identify the turning of the adjacent road intersection area according to the planned route and the road characteristics, and then, the terminal identifies the turning of the adjacent road intersection area based on the road characteristics of the adjacent road intersection area, for example, the terminal may determine the turning corresponding to the adjacent road intersection area according to an included angle between roads corresponding to the adjacent road intersection area, and finally, the terminal determines the adjacent road intersection area which is the same as the turning road intersection area as a similar road intersection area.

205. And the terminal generates and outputs prompt information of the similar road intersection area.

For example, specifically, the distance between the similar intersection area and the turn intersection area is 400 meters, the terminal may generate the prompt information according to the distance, and display the prompt information to the user as "passing through the current intersection area, and then turning right after 400 meters"

As can be seen from the above, after the terminal of the embodiment of the present application acquires the planned path information of the target vehicle, the terminal selects a turn road intersection region corresponding to the target vehicle from the acquired road intersection regions, then, the terminal acquires road characteristics corresponding to roads adjacent to each road intersection region, then, the terminal identifies, based on the planned route and the road characteristics, an adjacent road intersection region that turns the same as the turn road intersection region in the adjacent road intersection region corresponding to the turn road intersection region, obtains a similar road intersection region corresponding to the turn road intersection region, and finally, the terminal generates and outputs prompt information of the similar road intersection region, in the prompt information generation scheme provided by the present application, the terminal identifies, based on the planned route and the road characteristics, the similar road intersection region corresponding to the turn road intersection region, and then, the terminal generates and outputs the prompt information of the similar road intersection area, namely, when the terminal generates a planned route, the terminal can generate corresponding prompt information according to the road characteristics of the similar road intersection area, and the problem that the judgment of the similar road intersection area is inaccurate only according to the shape of the road intersection area is avoided, so that the accuracy of identifying the similar road intersection area is improved, and the accuracy of the prompt information is improved.

In order to better implement the prompt information generating method of the present application, the present application further provides a prompt information generating device (abbreviated as generating device) based on the above, wherein the meaning of the mentioned noun is the same as that in the prompt information generating method, and the specific implementation details can refer to the description in the method embodiment.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a prompt information generating device provided in the present application, where the generating device may include an obtaining module 301, a selecting module 302, an acquiring module 303, an identifying module 304, and a generating module 305, and specifically the following modules may be included:

the obtaining module 301 is configured to obtain planned path information of a target vehicle.

The selecting module 302 is configured to select a turning road junction area corresponding to the target vehicle from the acquired road junction areas.

For example, specifically, the selection module 302 may calculate whether an angle between the current driving direction of the target vehicle and the driving direction at the previous time is greater than or equal to a preset angle, and when it is calculated that the angle between the current driving direction of the target vehicle and the driving direction at the previous time is greater than or equal to the preset angle, the selection module 302 determines the area where the angle changes as the turn road junction area. In order to reduce the calculation amount, the selection module 302 may determine, based on the intersection areas obtained by the selection module 302, a position of each intersection area corresponding to the planned route, calculate whether an angle change occurs in the planned route at the determined position, and when the angle change occurs in the planned route at the determined position and the changed angle is greater than or equal to a preset included angle, the selection module 302 determines the area with the changed angle as the intersection area of the turn road

Optionally, in some embodiments, the selection module 302 may specifically be configured to: and determining the area with the angle change in the acquired road intersection area as a steering road intersection area corresponding to the target vehicle.

The collecting module 303 is configured to collect road characteristics corresponding to roads adjacent to each road intersection area.

The identifying module 304 is configured to identify, based on the planned route and the road characteristics, an adjacent road intersection area where the turn direction is the same as the turn direction road intersection area in the adjacent road intersection area corresponding to the turn direction road intersection area, so as to obtain a similar road intersection area corresponding to the turn direction road intersection area.

For example, the identification module 304 may identify the turn of the adjacent intersection region according to the planned route and the road characteristics, specifically, the identification module 304 determines the intersection region adjacent to the turn intersection region according to the planned route, then the identification module 304 identifies the turn of the adjacent intersection region based on the road characteristics of the adjacent intersection region, for example, the identification module 304 may determine the turn corresponding to the adjacent intersection region according to the included angle between the roads corresponding to the adjacent intersection region, and finally, the identification module 304 determines the adjacent intersection region turning the same as the turn intersection region as the similar intersection region

Optionally, in some embodiments, the identifying module 304 may specifically include:

and the determining submodule is used for determining the adjacent road intersection area with the same steering as the similar road intersection area corresponding to the turning road intersection area based on the road characteristics when the situation that the steering of the adjacent road intersection area is the same as the steering of the turning road intersection area is identified.

Optionally, in some embodiments, the determining the sub-module specifically may include:

the generation unit is used for generating the steering grade of the adjacent road intersection area according to the road characteristics of the adjacent steering road corresponding to the adjacent road intersection area when the situation that the steering of the adjacent road intersection area is the same as the steering of the steering road intersection area is identified;

the first determining unit is used for determining an adjacent road intersection area corresponding to an adjacent turning road with the turning grade greater than or equal to the preset grade as a similar road intersection area corresponding to the turning road intersection area.

Optionally, in some embodiments, the determining unit may specifically include:

the generating subunit is used for generating the similarity between the adjacent road intersection area and the turning road intersection area according to the road characteristics of the adjacent turning roads corresponding to the adjacent road intersection area and the road characteristics of the turning roads;

and the mapping subunit is used for mapping the similarity degree to the corresponding steering grade based on the first mapping relation to obtain the steering grade of the adjacent road intersection area.

Optionally, in some embodiments, the generating subunit may specifically be configured to: the method comprises the steps of extracting road grades and road attributes of turning roads from road characteristics of the turning roads to obtain first road grades and first road attributes, extracting road grades and road attributes of adjacent turning roads from road characteristics of the adjacent turning roads to obtain second road grades and second road attributes, and generating the similarity degree between adjacent road intersection areas and the turning road intersection areas according to the first road grades, the first road attributes, the second road grades and the second road attributes.

Optionally, in some embodiments, the identifier module may specifically include:

the third determining unit is used for determining the road of the planned route connected with the adjacent road interaction area to obtain a traveling road;

Optionally, in some embodiments, the identification unit may be specifically configured to: calculating an included angle between an adjacent turning road and an advancing road, acquiring a mapping relation between the included angle between the adjacent turning road and the advancing road and the turning to obtain a second mapping relation, and acquiring the turning of an adjacent road intersection area based on the second mapping relation and the included angle between the adjacent turning road and the advancing road.

And the generating module 305 is configured to generate and output prompt information of the similar road intersection area.

The generating module 305 may generate corresponding prompt information according to the distance between the similar road intersection area and the turn road intersection area, and display the prompt information, so that the user knows that the prompt information may carry the distance between the similar road intersection area and the turn road intersection area, that is, optionally, in some embodiments, the generating module 305 may specifically be configured to: and generating and displaying prompt information of the similar road intersection area according to the distance between the similar road intersection area and the turning road intersection area.

After the acquisition module 301 of the embodiment of the application acquires the planned path information of the target vehicle, the selection module 302 selects a turn road intersection region corresponding to the target vehicle from the acquired road intersection regions, then the acquisition module 303 acquires road characteristics corresponding to roads adjacent to each road intersection region, then the identification module 304 identifies, based on the planned route and the road characteristics, adjacent road intersection regions that turn the same as the turn road intersection regions in adjacent road intersection regions corresponding to the turn road intersection regions to obtain similar road intersection regions corresponding to the turn road intersection regions, and finally the generation module 305 generates and outputs prompt information of the similar road intersection regions, in the prompt information generation scheme provided by the application, the identification module 304 identifies the similar road intersection regions corresponding to the turn road intersection regions based on the planned route and the road characteristics, then, the generating module 305 generates and outputs the prompt information of the similar road intersection area, that is, when the generating device generates the planned route, the generating device may generate the corresponding prompt information according to the road characteristics of the similar road intersection area, so as to avoid the problem that the judgment of the similar road intersection area is not accurate only according to the shape of the road intersection area, thereby improving the accuracy of identifying the similar road intersection area, and thus improving the accuracy of the prompt information.

In addition, the present application also provides an electronic device, as shown in fig. 4, which shows a schematic structural diagram of the electronic device related to the present application, specifically: the electronic device may include components such as a processor 401 of one or more processing cores, memory 402 of one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will appreciate that the electronic device configuration shown in fig. 4 does not constitute a limitation of the electronic device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. Wherein:

the processor 401 is a control center of the electronic device, connects various parts of the whole electronic device by various interfaces and lines, performs various functions of the electronic device and processes data by running or executing software programs and/or modules stored in the memory 402 and calling data stored in the memory 402, thereby performing overall monitoring of the electronic device. Optionally, processor 401 may include one or more processing cores; preferably, the processor 401 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 401.

The memory 402 may be used to store software programs and modules, and the processor 401 executes various functional applications and data processing by operating the software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to use of the electronic device, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 access to the memory 402.

The electronic device further comprises a power supply 403 for supplying power to the various components, and preferably, the power supply 403 is logically connected to the processor 401 through a power management system, so that functions of managing charging, discharging, and power consumption are realized through the power management system. The power supply 403 may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.

The electronic device may further include an input unit 404, and the input unit 404 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

Although not shown, the electronic device may further include a display unit and the like, which are not described in detail herein. Specifically, in this embodiment, the processor 401 in the electronic device loads the executable file corresponding to the process of one or more application programs into the memory 402 according to the following instructions, and the processor 401 runs the application program stored in the memory 402, thereby implementing various functions as follows:

the method comprises the steps of obtaining planned path information of a target vehicle, selecting a turning road intersection area corresponding to the target vehicle from the obtained road intersection areas, collecting road characteristics corresponding to roads adjacent to each road intersection area, identifying adjacent road intersection areas turning to the same direction as the turning road intersection area in the adjacent road intersection areas corresponding to the turning road intersection areas on the basis of the planned route and the road characteristics, obtaining similar road intersection areas corresponding to the turning road intersection areas, and generating and outputting prompt information of the similar road intersection areas.

The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.

As can be seen from the above, in the embodiment of the present application, after the planned path information of the target vehicle is acquired, the turn road intersection region corresponding to the target vehicle is selected from the acquired road intersection regions, then, the road characteristics corresponding to the roads adjacent to each road intersection region are collected, then, based on the planned route and the road characteristics, the adjacent road intersection region turning the same as the turn road intersection region is identified in the adjacent road intersection region corresponding to the turn road intersection region, the similar road intersection region corresponding to the turn road intersection region is obtained, and finally, the prompt information of the similar road intersection region is generated and output, in the prompt information generation scheme provided by the present application, the similar road intersection region corresponding to the turn road intersection region is identified based on the planned route and the road characteristics, and then, the prompt information of the similar road intersection region is generated and output, that is, when the planned route is generated, the corresponding prompt information can be generated according to the road characteristics of the similar road intersection area, and the problem that the judgment of the similar road intersection area is inaccurate only according to the shape of the road intersection area is avoided, so that the accuracy of identifying the similar road intersection area is improved, and the accuracy of the prompt information is improved.

It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.

To this end, the present application provides a storage medium having stored therein a plurality of instructions that can be loaded by a processor to perform the steps of any of the hint information generation methods provided herein. For example, the instructions may perform the steps of:

Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.

Since the instructions stored in the storage medium can execute the steps in any prompt information generation method provided by the present application, beneficial effects that can be achieved by any prompt information generation method provided by the present application can be achieved, for details, see the foregoing embodiments, and are not described herein again.

According to an aspect of the application, a computer program product or computer program is provided, comprising computer instructions, the computer instructions being stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the method provided in the various alternative implementations described above.

The method, the apparatus, the electronic device, and the storage medium for generating the prompt information provided by the present application are described in detail above, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, 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 application.

Claims

1. A method for generating prompt information is characterized by comprising the following steps:

2. The method according to claim 1, wherein identifying, based on the planned route and road characteristics, an adjacent road junction area having the same turn as the turn road junction area in an adjacent road junction area corresponding to the turn road junction area to obtain a similar road junction area corresponding to the turn road junction area comprises:

identifying the steering of the adjacent road intersection area according to the planned route and the road characteristics;

and when the fact that the turning direction of the adjacent road intersection area is the same as the turning direction of the turning road intersection area is recognized, determining the adjacent road intersection area with the same turning direction as a similar road intersection area corresponding to the turning road intersection area based on the road characteristics.

3. The method of claim 2, wherein when it is recognized that the turn of the adjacent road intersection region is the same as the turn of the diverted road intersection region, determining the adjacent road intersection region having the same turn as the diverted road intersection region corresponding to a similar road intersection region based on the road characteristics comprises:

when the fact that the steering of the adjacent road intersection area is the same as the steering of the turning road intersection area is recognized, generating the turning grade of the adjacent road intersection area according to the road characteristics of the adjacent turning road corresponding to the adjacent road intersection area;

and determining an adjacent road intersection area corresponding to an adjacent turning road with the turning grade greater than or equal to a preset grade as a similar road intersection area corresponding to the turning road intersection area.

4. The method according to claim 3, wherein the generating the steering level of the adjacent road intersection area according to the road characteristics of the adjacent steering road corresponding to the adjacent road intersection area comprises:

determining a corresponding turning road after the turning road intersection region is turned;

generating a similarity degree between the adjacent road intersection area and the turning road intersection area according to the road characteristics of the adjacent turning roads corresponding to the adjacent road intersection area and the road characteristics of the turning roads;

acquiring a mapping relation between a preset steering grade and the similarity degree to obtain a first mapping relation;

and mapping the similarity degree to a corresponding steering grade based on the first mapping relation to obtain the steering grade of the adjacent road intersection area.

5. The method according to claim 4, wherein the generating the similarity between the adjacent road junction area and the diverted road junction area according to the road characteristics of the adjacent diverted road corresponding to the adjacent road junction area and the road characteristics of the diverted road comprises:

6. The method of any of claims 2 to 5, wherein identifying turns to adjacent road intersection regions from the planned route comprises:

determining a road intersection region adjacent to the turn road intersection region within a preset range according to the planned route, and obtaining an adjacent road intersection region of the adjacent road intersection region corresponding to the turn road intersection region;

acquiring a corresponding steering road after the adjacent road intersection area is steered to obtain an adjacent steering road corresponding to the adjacent road intersection area;

determining the road connected with the planned route and the adjacent road interaction area to obtain a traveling road;

and identifying the steering of the adjacent road intersection area according to the included angle between the adjacent steering road and the advancing road.

7. The method of claim 6, wherein identifying the turn of the adjacent roadway intersection region based on the angle between the adjacent turn roadway and the travel roadway comprises:

8. The method according to any one of claims 1 to 7, wherein selecting a turning intersection region corresponding to the target vehicle from the acquired intersection regions comprises:

9. The method according to any one of claims 1 to 7, wherein the generating and outputting the prompt information of the similar road intersection region comprises:

10. A presentation information generating apparatus, comprising:

11. The apparatus of claim 10, wherein the identification module comprises:

12. The apparatus of claim 11, wherein the determination submodule comprises:

13. The apparatus of claim 12, wherein the determining unit comprises:

14. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method of generating a reminder information according to any one of claims 1 to 9 are implemented when the program is executed by the processor.

15. A computer-readable storage medium, on which a computer program is stored, wherein the computer program, when being executed by a processor, carries out the steps of the hint information generation method as set forth in any one of claims 1 to 9.