CN112598916A

CN112598916A - Navigation reminding method and device, electronic equipment and storage medium

Info

Publication number: CN112598916A
Application number: CN202011437070.5A
Authority: CN
Inventors: 宫冰川
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-04-02
Anticipated expiration: 2040-12-07
Also published as: CN112598916B

Abstract

The embodiment of the application provides a navigation reminding method and device, electronic equipment and a storage medium, and relates to the technical field of navigation. The method comprises the following steps: acquiring the current position, the driving state and the navigation route of a target vehicle; determining a search range according to the current position of the target vehicle, and acquiring surrounding vehicles which are matched with the navigation route of the target vehicle in the search range; and if the target vehicle and the peripheral vehicle are determined not to be in the safe distance according to the acquired current position and the driving state of the peripheral vehicle and the current position and the driving state of the target vehicle, generating a navigation prompt. Compared with the mode of only displaying the navigation route on the map, the embodiment of the application ensures that the driver is willing to open the navigation to receive the navigation prompt even if the driver knows the road relatively, thereby improving the utilization rate and the satisfaction degree of the user on the navigation.

Description

Navigation reminding method and device, electronic equipment and storage medium

Technical Field

The present application relates to the field of navigation technologies, and in particular, to a navigation reminding method, an apparatus, an electronic device, and a storage medium.

Background

Along with the high-speed development of social economy, the quantity of motor vehicles is also rapidly increased, and traffic accidents are gradually increased, so that the early warning on the driving risks of the motor vehicles is more and more emphasized.

The traditional navigation only provides path planning from a starting point to a terminal point once, and after the navigation is finished, and meanwhile, the navigation reminding information is only limited to the reminding of the deviation and traffic conditions of the road.

Disclosure of Invention

Embodiments of the present invention provide a navigation reminding method, apparatus, electronic device and storage medium that overcome the above problems or at least partially solve the above problems.

In a first aspect, a navigation reminding method is provided, and the method includes:

acquiring the current position, the driving state and the navigation route of a target vehicle;

determining a search range according to the current position of the target vehicle, and acquiring surrounding vehicles which are matched with the navigation route of the target vehicle in the search range;

and if the target vehicle and the peripheral vehicle are determined not to be in the safe distance according to the acquired current position and the driving state of the peripheral vehicle and the current position and the driving state of the target vehicle, generating a navigation prompt.

In one possible implementation, determining the search range according to the current position of the target vehicle includes:

determining the road grade of the road where the target vehicle is located according to the current position of the target vehicle;

and determining a corresponding search range according to the road grade.

In one possible implementation, acquiring a nearby vehicle within the search range that matches the navigation route of the target vehicle includes:

determining at least one path point in a road section with a preset length to be driven by the target vehicle from the navigation route according to the current position of the target vehicle;

acquiring the current position, the driving state and the navigation route of other vehicles in a search range taking at least one path point as a circle center;

and if the navigation routes of the other vehicles comprise road sections with preset lengths, taking the other vehicles as the peripheral vehicles matched with the navigation routes of the target vehicle.

In one possible implementation, obtaining a surrounding vehicle within the search range that matches the navigation route of the target user further includes:

obtaining vehicle type information of surrounding vehicles;

triggering the navigation prompt includes:

and if the vehicle type information of the peripheral vehicles meets the preset conditions, triggering the navigation prompt containing the vehicle type information of the peripheral vehicles.

In one possible implementation, the driving conditions include direction and speed;

if the target vehicle and the surrounding vehicle are determined not to be in the safe distance according to the current positions and the running states of the target vehicle and the surrounding vehicle, the method also comprises the following steps:

determining the front-back relationship and the distance between the surrounding vehicle and the target vehicle according to the current positions of the surrounding vehicle and the target vehicle;

and judging whether the target vehicle and the peripheral vehicle are in a safe distance or not according to the front-back relation and the distance between the peripheral vehicle and the target vehicle and by combining the directions and the speeds of the peripheral vehicle and the target vehicle.

In one possible implementation manner, the determining whether the target vehicle and the nearby vehicle are at a safe distance or not according to the front-back relationship and the distance between the nearby vehicle and the target vehicle and the direction and the speed between the nearby vehicle and the target vehicle includes at least one of the following situations:

if the speed of the rear vehicle in the peripheral vehicle and the target vehicle is smaller than that of the front vehicle, determining that the target vehicle and the peripheral vehicle are in a safe vehicle distance;

if the speed of the rear vehicle in the peripheral vehicle and the target vehicle is greater than that of the front vehicle, and the rear vehicle is determined not to collide with the front vehicle within the preset time according to the current positions, directions and speeds of the peripheral vehicle and the target vehicle, determining that the target vehicle and the peripheral vehicle are in a safe vehicle distance;

and if the speed of the rear vehicle in the peripheral vehicle and the target vehicle is greater than that of the front vehicle, and the rear vehicle is determined to collide with the front vehicle within the preset time according to the current positions, directions and speeds of the peripheral vehicle and the target vehicle, determining that the target vehicle and the peripheral vehicle are not in the safe distance.

In one possible implementation, the current position, the driving state, and the navigation route of the target vehicle are encrypted by a preset encryption algorithm;

determining a search range according to the current position of the target vehicle, and acquiring a peripheral vehicle which is matched with the navigation route of the target user and is in the search range, wherein the method also comprises the following steps:

and decrypting the encrypted current position, the encrypted running state and the encrypted navigation route of the target vehicle according to a decryption algorithm corresponding to the preset encryption algorithm. In a second aspect, a navigation reminder device is provided, which includes:

the target vehicle information acquisition module is used for acquiring the current position, the running state and the navigation route of a target vehicle;

the peripheral processing information acquisition module is used for determining a search range according to the current position of the target vehicle and acquiring the peripheral vehicles which are matched with the navigation route of the target vehicle in the search range;

and the navigation reminding triggering module is used for triggering navigation reminding if the target vehicle and the peripheral vehicle are determined not to be in a safe distance according to the current position and the running state of the peripheral vehicle, and the current position and the running state of the target vehicle, which are acquired in advance.

In one possible implementation, the peripheral processing information obtaining module includes:

the road grade acquisition unit is used for determining the road grade of the current road of the target vehicle according to the current position of the target vehicle;

and the search range determining unit is used for determining a corresponding search range according to the road grade.

the system comprises a path point acquisition unit, a navigation unit and a processing unit, wherein the path point acquisition unit is used for determining at least one path point in a road section with a preset length to be driven by a target vehicle from a navigation route according to the current position of the target vehicle;

the other vehicle information acquisition unit is used for acquiring the current position, the driving state and the navigation route of other vehicles in a search range taking at least one path point as the center of a circle;

and the matching unit is used for taking other vehicles as the peripheral vehicles matched with the navigation route of the target vehicle if the navigation route of the other vehicles comprises the road sections with the preset length.

In one possible implementation manner, the peripheral processing information obtaining module further includes:

a vehicle type acquisition unit for acquiring vehicle type information of peripheral vehicles;

the navigation reminds trigger module, still includes:

a vehicle type reminding unit for triggering the navigation reminding containing the vehicle type information of the peripheral vehicles if the vehicle type information of the peripheral vehicles meets the preset conditions

the navigation reminding device further comprises:

the system comprises a relation determining module, a distance determining module and a control module, wherein the relation determining module is used for determining the front-back relation and the distance between a surrounding vehicle and a target vehicle according to the current positions of the surrounding vehicle and the target vehicle;

and the safety judgment module is used for judging whether the target vehicle and the peripheral vehicle are in a safe distance or not according to the front-back relation and the distance between the peripheral vehicle and the target vehicle and by combining the directions and the speeds of the peripheral vehicle and the target vehicle.

In one possible implementation manner, the safety judgment module is specifically configured to:

in one possible implementation, the target vehicle information acquisition module is further configured to:

and decrypting the encrypted current position, the encrypted running state and the encrypted navigation route of the target vehicle according to a decryption algorithm corresponding to the preset encryption algorithm.

In a third aspect, an embodiment of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps of the method provided in the first aspect.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the method as provided in the first aspect.

In a fifth aspect, an embodiment of the present invention provides a computer program, where the computer program includes computer instructions stored in a computer-readable storage medium, and when a processor of a computer device reads the computer instructions from the computer-readable storage medium, the processor executes the computer instructions, so that the computer device executes the steps of implementing the method provided in the first aspect.

The navigation reminding method, the navigation reminding device, the electronic equipment and the storage medium provided by the embodiment of the invention can obtain the current position, the driving state and the navigation route of the target vehicle, determine the search range according to the current position of the target vehicle, match the navigation route of the target vehicle to the surrounding vehicles, reduce the samples needing to judge the safe distance, improve the operation efficiency by phase change, calculate the safe distance by combining the current positions and the driving states of the target vehicle and the surrounding vehicles, obtain the data with higher accuracy, reduce the potential accidents caused in the process of traveling, and because the scheme can judge and remind the safe distance in real time in the navigation process, even if a driver knows the road relatively, the driver still wants to open the navigation to receive the navigation reminding, the utilization rate and satisfaction degree of the user on navigation are improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments of the present application will be briefly described below.

Fig. 1 is a schematic diagram of navigation prompt information displayed in a route overview page provided in the related art;

fig. 2 is an exemplary system architecture of a navigation reminding method or apparatus according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a navigation reminder system according to another embodiment of the present application;

fig. 4 is a schematic flowchart of a navigation reminding method according to an embodiment of the present application;

fig. 5 is a schematic flowchart of acquiring a navigation route according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a navigation route of a vehicle provided by an embodiment of the present application;

fig. 7 is a schematic view of a driving scene of a nearby vehicle and a target vehicle according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a navigation reminder device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present invention.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

First, a number of terms related to embodiments of the present application will be described:

navigation route: the terminal or the server plans a route which can be reached to the end point position from the starting position by the user according to the obtained starting position and the obtained end point position, and the route meets the requirements of the user on the planned route. The requirement of the user on the planned route is referred to as a planning condition for short, that is, the navigation route planned by the terminal or the server needs to meet the requirements of the starting position, the end position and the planning condition at the same time. The planning condition is a definition requirement for a route planned by the terminal or the server based on the starting position and the end position. Typically, the planning conditions include: at least one of a high speed priority principle, a charging avoidance principle, a congestion avoidance principle or a high speed non-walking principle.

The terminal includes: the mobile terminal or the vehicle-mounted terminal is internally provided with a positioning component, the position of the terminal can be obtained according to the positioning component, and the position of the terminal is used as an initial position. And the terminal plans a navigation route according to the acquired initial position and the acquired end position by inputting the end position to the terminal by the user.

In the navigation process, the terminal generates navigation prompt information for key position points encountered in the road, and the navigation prompt information is used for informing the user of the subsequent traveling direction. The key position points can include crossroads, three-way intersections, roundabouts and the like.

The safe vehicle distance is a necessary distance between the rear vehicle and the front vehicle during traveling in order to avoid an accidental collision with the front vehicle. The safe distance has no absolute numerical concept, which is determined on a case-by-case basis. Generally, the faster the vehicle speed and the larger the vehicle weight, the longer the distance required for the safety distance.

In a related art, a terminal acquires a navigation route, however, the content of navigation guidance information of the navigation route is too small. Referring to fig. 1, which schematically illustrates a navigation prompt message displayed in a route overview page provided in the related art, in fig. 1, the navigation prompt message 10 and a current location 20 of a user are included, the navigation prompt message 10 includes a traveling direction and a distance from the current location 20 of the user to a street, and a time for completing a whole navigation process along a navigation route and a length for completing the whole navigation process. However, the content of the navigation prompt message generated by the current terminal is too monotonous, so that once the user is familiar with the route, the navigation cannot be started, and the utilization rate and the satisfaction degree of the driver on the traditional navigation are not ideal.

The navigation reminding method, the navigation reminding device, the electronic equipment and the storage medium aim to solve the technical problems in the prior art.

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

Referring to fig. 2, a schematic diagram of an exemplary system architecture 100 of a navigation reminding method or apparatus provided by an embodiment of the present application is exemplarily shown.

As shown in fig. 2, system architecture 100 may include one or more of

terminal devices

110, 120, 130, a network 140, and a server 150. Network 140 is the medium used to provide communication links between

end devices

110, 120, 130 and server 150. Network 140 may include various connection types, such as wired, wireless communication links, or fiber optic cables, to name a few.

It should be understood that the number of terminal devices, networks, and servers in fig. 2 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for implementation. For example, the server 150 may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing a cloud computing service.

The execution method of the server in the embodiment of the present application may be implemented in a form of cloud computing (cloud computing), which is a computing mode and distributes computing tasks on a resource pool formed by a large number of computers, so that various application systems can obtain computing power, storage space, and information services as needed. The network that provides the resources is referred to as the "cloud". Resources in the "cloud" appear to the user as being infinitely expandable and available at any time, available on demand, expandable at any time, and paid for on-demand.

As a basic capability provider of cloud computing, a cloud computing resource pool (called as an ifas (Infrastructure as a Service) platform for short is established, and multiple types of virtual resources are deployed in the resource pool and are selectively used by external clients.

According to the logic function division, a PaaS (Platform as a Service) layer can be deployed on an IaaS (Infrastructure as a Service) layer, a SaaS (Software as a Service) layer is deployed on the PaaS layer, and the SaaS can be directly deployed on the IaaS. PaaS is a platform on which software runs, such as a database, a web container, etc. SaaS is a variety of business software, such as web portal, sms, and mass texting. Generally speaking, SaaS and PaaS are upper layers relative to IaaS.

A user may use

terminal devices

110, 120, 130 to interact with server 150 via network 140 to receive or send messages, etc. The

terminal devices

110, 120, 130 may be various electronic devices having a display screen and supporting web browsing, including but not limited to smartphones, tablets, portable computers, wearable devices, terminal devices, and the like.

The terminal is installed with a target application program for providing services by the server 150, the target application program may be an application program or an operating system, and the target application program provides a running environment for implementing navigation services. For example, the target application may be a navigation application and the navigation service may be implemented based on the target application, which provides an operating environment for the navigation service. For another example, the target application may be an Android operating system (Android), the navigation service may be implemented based on a fast application of the target application, and the target application provides a running environment for the fast application for providing the navigation service.

The server 150 may be a server that provides various services, particularly a server that provides a navigation service.

In the embodiment of the present application, when a user needs to navigate, the user may enter a navigation service interface through a target application on the terminal 110, and send a navigation request to the server 150 based on the navigation service interface. The navigation request comprises a start point and a stop point of the navigation, a real-time position of a vehicle where the user is located and a driving state, the driving state of the vehicle where the user is located can be collected through a sensor arranged on the vehicle and is sent to a target application program, and the driving state can comprise information such as speed, direction and altitude.

The server 150 receives information such as a starting point, a real-time position and a driving state uploaded by each terminal, so that whether the vehicles meet a safe vehicle distance can be judged by combining a big data analysis technology, a navigation prompt is generated when the vehicle where the user is located and surrounding vehicles are not located at the safe vehicle distance, and the user can respond as early as possible by sending the navigation prompt to the terminal 110, so that traffic accidents are avoided.

Referring to fig. 3, which schematically illustrates a structural diagram of a navigation reminder system according to another embodiment of the present application, the difference from fig. 2 includes that, as shown in fig. 3, the navigation reminder system includes:

the positioning module 210 is configured to periodically transmit back the position information of the vehicle where the terminal is located through a positioning callback function according to the positioning frequency set by the terminal; for example, if the positioning frequency set by the terminal is to acquire the positioning information every 5 seconds, the terminal returns the position information every 5 seconds through the positioning callback function. In this embodiment of the application, the Positioning module may be a GPS (global Positioning system) module, a beidou Positioning module, a wifi locator, or the like, and taking the GPS module as an example, the GPS module may periodically send a Positioning request to a GPS satellite or a GPS server according to a Positioning frequency to obtain position information returned by the GPS satellite or the GPS server. The Wifi locator is mainly used for carrying out triangular positioning on people and vehicles accurately through wireless signal intensity of mobile equipment and three wireless network access points and a difference algorithm, and the accuracy can only be maintained at meter level positioning.

A positioning processing module 220, configured to package the position information into a data format that can be received by the navigation engine, and transmit the data format to the navigation engine 230;

the navigation engine 230 encapsulates and protects the topological relationships of the geometric data and the guidance data, providing route analysis, topology analysis, and guidance information functions. The data format that the navigation engine 230 can receive may be GPS or wifi, and for the terminal of the android system, the source of the positioning information is divided into two types, one is positioning information issued through a satellite, which is GPS information, and the other is positioning information issued through a network, which is base station information, and the basis for determining whether the GPS information or the base station information is wifi or GPS. The navigation engine 230 encrypts and uploads the received positioning data to the server. Specifically, the navigation engine 230 may perform Encryption by means of AES (Advanced Encryption Standard).

A server, comprising:

a positioning collecting unit 310, which receives the encrypted positioning data, decrypts the encrypted positioning data to obtain plaintext positioning data, and transmits the plaintext positioning data to a position processing unit 320;

the position processing unit 320 determines the nearby vehicle within the search range of the vehicle from the clear text positioning data, and returns the nearby vehicle information to the navigation engine 230.

The navigation engine 230 transmits the information to the event distribution module 240 of the terminal according to the surrounding vehicles, the current road name, the remaining distance of the navigation section, and the remaining time.

The event distribution module 240 performs state analysis on the positioning data, the driving state, the current road name, the remaining distance of the navigation segment, and the remaining time information of the located (target) vehicle and the received surrounding vehicle, and distributes the result to each processing unit:

a destination unit, configured to mainly receive a destination arrival instruction sent by the event distribution module 240 when the remaining distance of the navigation segment is 0 or the remaining time is 0, and learn, according to the received destination arrival, that the destination has arrived, notify, through a voice engine (not shown in the figure), that the user has arrived, and end this navigation;

and an alarm unit, which receives the alarm information of the event distribution unit 240 when the surrounding vehicle is identified as a luxury vehicle, calculates the distance between the current positioning information of the vehicle and the positioning information of the surrounding vehicle, and analyzes whether a potential danger occurs by combining the direction and the speed between the current positioning information of the vehicle and the positioning information of the surrounding vehicle, and if the potential danger exists, triggers an alarm device to alarm, wherein the alarm device may include a sound, a lamp, a display screen, and the like.

The redrawing unit is mainly used for drawing visual navigation information, such as navigation guide actions, current road names, remaining distance of current navigation sections, remaining time from a destination and the like;

the enlargement image unit is mainly used for drawing an enlarged intersection image;

the service area unit is mainly used for drawing a service area panel;

and the yaw unit is mainly used for triggering yaw reminding when the distance between the current position of the vehicle and the navigation route is greater than the preset distance so as to remind a user that yaw occurs at present.

As can be seen from the system in the embodiment shown in fig. 3, the server may be configured to collect information (e.g., current position, driving state, navigation route) of each vehicle on the road and determine the vehicles around the vehicle, and then transmit the information of the vehicles around to the terminal, and the terminal may perform the determination and calculation of whether to prompt navigation by combining the information of the vehicles around.

Referring to fig. 4, a schematic flowchart of a navigation reminding method provided in an embodiment of the present application is exemplarily shown, and as shown in fig. 4, the method includes:

s101, acquiring the current position, the running state and the navigation route of a target vehicle;

the current position of the target vehicle is obtained through a terminal on the target vehicle, such as a mobile terminal or a vehicle-mounted terminal, a positioning component is installed in the terminal, the positioning component can position the position of the terminal (which is equal to the target vehicle) in real time, and the terminal determines the position provided by the positioning component as the current position of the target vehicle.

The driving state of the target vehicle refers to a state of the target vehicle during driving, and may include information such as a vehicle speed, a direction, a lane where the target vehicle is located, an altitude, and the like, and may be acquired by a sensor or a terminal of the target vehicle through positioning information collection for a certain time. For example, the vehicle speed can be obtained by a speed sensor of the vehicle itself, or can be obtained by the terminal according to the displacement change condition in a certain time. The direction of the vehicle may be determined by a steering angle sensor of the vehicle or a displacement direction of the vehicle over a certain time.

The navigation route can be obtained by planning a starting position and an end position preset by the terminal.

The method for the terminal to obtain the starting position includes at least one of the following three methods:

firstly, a positioning component is installed in the terminal, the positioning component is used for positioning the position of the terminal, and the terminal determines the position provided by the positioning component as the starting position of navigation.

Secondly, a user manually inputs an initial position to the terminal, and the terminal acquires the initial position of navigation.

Thirdly, the user determines the starting position in the electronic map by clicking, and the terminal acquires the starting position of the navigation. Electronic maps, also known as digital maps, are maps that are stored and consulted digitally using computer technology.

The terminal acquires the end position in at least one of the following two ways:

in the first mode, a user manually inputs an end point position to a terminal, and the terminal acquires the navigation end point position.

In the second mode, a user determines the end point position in an electronic map in a clicking mode, and the terminal acquires the navigation end point position.

Optionally, the manner in which the terminal acquires the start position is any one of the three manners, and the manner in which the terminal acquires the end position is any one of the two manners. The manner in which the terminal acquires the start position and the end position includes, but is not limited to, the above-described acquisition manner.

Referring to fig. 5, a schematic flow chart for providing a navigation route according to an embodiment of the present application is exemplarily shown, and as shown in the drawing, the method includes:

step 1, acquiring longitude and latitude values of a starting point position and an end point position of a target vehicle;

the starting point position of the target vehicle can be the position of the target vehicle when the target vehicle is not started, and can also be the real-time position of the target vehicle when the target vehicle runs, namely the target vehicle can continuously plan a real-time navigation route according to the current position and the end point position in the running process, so that a new navigation route can be planned in time when the target vehicle deviates from the historical navigation route.

Step 2, transmitting the starting position and the end position to a navigation engine, and performing navigation route calculation by the navigation engine according to the starting position and the end position;

when the navigation engine has off-line navigation data or is in network connection with the navigation server, the navigation engine can calculate the route successfully, and when the navigation engine has neither off-line navigation data nor network connection with the navigation server, the situation of route calculation failure can occur. In addition, when the navigation server goes down, the navigation engine also has the problem of route calculation failure.

Step 3, if the path calculation is successful, executing step 6, otherwise executing step 4;

step 4, judging whether the retry number is less than the specified retry number (for example, the specified retry number can be 1, 3, 5, etc.), if so, executing step 1, otherwise, executing step 5;

step 5, the navigation engine informs the user of the way calculation failure and ends the way calculation of the navigation route;

and 6, analyzing the route calculation result by the navigation engine to obtain a navigation route, and transmitting the navigation route back to the terminal.

It should be understood that the number of navigation routes may not be limited to 1, and may include, for example, a route with the least traffic lights, a route with the least congestion, a route with the shortest distance, a route with the least charge, and the like.

And 7, drawing and displaying the visual navigation route by the terminal according to the returned route.

S102, determining a search range according to the current position of the target vehicle, and acquiring the surrounding vehicles which are matched with the navigation route of the target vehicle in the search range.

In order to add new content on the basis of the traditional navigation reminding content to enhance the utilization rate of a user for a navigation program, one of the purposes of the embodiment of the present application is to provide potential safety hazards which may occur in the navigation process for the user, so that it is necessary to determine a search range according to the current position of a target vehicle and further determine a surrounding vehicle which is within the search range and is matched with the navigation route of the target vehicle.

The related scheme utilizes V2V communication (V2V communication) to realize wireless-based data transmission among motor vehicles and realize the sharing of the position and speed of each vehicle when determining the peripheral vehicles of the vehicles, but V2V communication belongs to short-range communication, when the vehicle speed is fast, the communication among the vehicles has the problems of instability and timeliness, and the V2V communication has high requirements on the hardware of the vehicles.

Therefore, the current position, the driving state and the navigation route of the terminal are uploaded to the server by the terminal, the server determines the peripheral vehicles which are in the searching range of the target vehicle and are matched with the navigation route of the target vehicle through the mass data uploaded by the terminal and the big data analysis technology, the hardware requirement on the terminal can be reduced, meanwhile, the V2V communication range is wider than the V2V communication range in the searching range, and finally predicted potential safety hazards can be reserved for users to be processed in more time.

Specifically, after the current position of the target vehicle is obtained, a circular search range may be circled by using the position as a circle center and using a preset radius, and by combining the obtained current positions of other vehicles, other vehicles located in the search range may be screened out. Because the navigation routes of the vehicles are different, the vehicles can run to different lanes or even different roads, and if the two vehicles run on different roads, the probability of safety accidents is generally extremely low, so that the navigation route is used as a condition for screening surrounding vehicles in the embodiment of the application.

S103, if the target vehicle and the peripheral vehicle are determined not to be in the safe distance according to the acquired current position and the driving state of the peripheral vehicle and the current position and the driving state of the target vehicle, generating a navigation prompt.

After the surrounding vehicle is determined, the current position and the running state of the surrounding vehicle can be further determined, so that whether the surrounding vehicle and the target vehicle are in the safe distance or not is judged according to the current positions and the running states of the surrounding vehicle and the target vehicle, and if the surrounding vehicle and the target vehicle are not in the safe distance, a navigation prompt is generated.

The navigation reminding method of the embodiment of the application obtains the current position, the running state and the navigation route of the target vehicle, determining a search range according to the current position of the target vehicle, matching the surrounding vehicles by combining the navigation route of the target vehicle, the obtained vehicles around are all the vehicles with intersection with the target vehicle on the driving route, so that the samples of safety distance judgment are reduced, the operation efficiency is improved through phase change, the safe distance is calculated by combining the current positions and the driving states of the target vehicle and the surrounding vehicles, so that data with higher accuracy can be obtained, potential accidents caused in the traveling process are reduced, according to the scheme, the safe distance can be judged and reminded in real time in the navigation process, so that even if a driver knows the road relatively, the driver still is willing to open the navigation to receive the navigation reminding, and the utilization rate and the satisfaction degree of the user on the navigation are improved.

On the basis of the foregoing embodiments, as an alternative embodiment, determining a search range according to the current position of the target vehicle includes:

s201, determining the road grade of the road where the target vehicle is located according to the current position of the target vehicle;

specifically, according to the embodiment of the present invention, the road where the current position of the target vehicle is located may be determined from the road network data, and generally, the road network data may record the road grade of the road, so that after the road where the current position of the target vehicle is located is determined, the road grade of the road may be further obtained from the road network data.

The road grade of the road can be obtained by analyzing the satellite image, specifically, the characteristics of the width, texture, surrounding environment and the like of the road where the target vehicle is located on the satellite influence are determined, and the road grade is determined according to the characteristics.

Because the vehicle in this embodiment of the application will send the positioning data to the server, the road grade can also be determined according to the information of the GPS track point of the vehicle on the road in the preset historical period, for example: acquiring a floating car Global Positioning System (GPS) track point of a road network; matching the GPS track points with road sections in a road network to obtain a GPS track point set matched with the road sections and road section sets of all the road sections matched with the GPS track points; determining at least one traffic capacity characteristic value for representing the traffic capacity of the road section according to the GPS track points in the GPS track point set matched with the road section; determining a traffic capacity characteristic central value of each traffic capacity corresponding to the initial road grade according to the traffic capacity characteristic value of each traffic capacity of the road sections with the same initial road grade in the road section set; respectively matching the traffic capacity characteristic value of each traffic capacity of the road sections in the road section set with the traffic capacity characteristic central value of the traffic capacity corresponding to each initial road grade, and taking the initial road grade corresponding to the successfully matched traffic capacity characteristic central value as the alternative road grade of the road section; and determining the road grade of the road section according to the alternative road grades of the road section.

Floating car: generally refers to a vehicle mounted with an on-board GPS positioning device and traveling on a road. The Floating Car (Floating Car Data) technology, also called "Probe Car", can be used to obtain road traffic information, and its basic principle is: by utilizing a GPS positioning device installed on the floating car, the information such as the position (namely GPS longitude and latitude coordinates), time, direction (which can be an included angle between a car head and a road center line), speed and the like of the car is regularly recorded in the running process of the floating car, and the information such as floating car vehicle identification, the position (namely GPS longitude and latitude coordinates), time, direction, speed and the like of the car is reported to a data processing center such as a road network center and the like for collecting GPS track points.

Because the precision of the GPS track points of the floating car is high, the passing capacity characteristic value of the passing capacity of the road section is determined accurately according to the GPS track points of the road section, and therefore the passing capacity characteristic central value of the passing capacity corresponding to the initial road grade is determined accurately according to the passing capacity characteristic value of the road section with the same initial road grade. And comparing the traffic capacity characteristic value of the road section with the traffic capacity characteristic central value corresponding to each initial road grade, and determining that the road grade of the road section is more accurate according to the comparison result.

S202, determining a corresponding search range according to the road grade of the road.

Because the requirements on the vehicle speed are different on different road grades, the search range is related to the road grade in the embodiment of the application, the search range can be larger for roads with lower road grades, so that more surrounding vehicles can be determined, and the driving safety of the vehicles is further enhanced.

On the basis of the above embodiments, as an alternative embodiment, acquiring a nearby vehicle matching the navigation route of the target vehicle within the search range includes:

s301, determining at least one path point in a road section with a preset length to be driven by the target vehicle from the navigation route according to the current position of the target vehicle;

referring to fig. 6, which schematically illustrates a navigation route of a vehicle, as shown in the figure, a target vehicle a needs to sequentially pass through a quiet road, a safe road and a male road from a current position to a destination position, wherein the target vehicle a needs to travel 800 meters on the quiet road, 2 kilometers on the safe road, and 5 kilometers on the male road.

In the embodiment of the present application, a uniform length (for example, 500 meters, 1 kilometer, or 3 kilometers, etc.) may be set for the length of the road segment with the preset length, and the length of the road segment may also be determined according to the road grade of the road where the vehicle is currently located, for example, when the target vehicle is located on a first-level road, at least one waypoint of 2 kilometers that the target vehicle is about to travel is determined from the navigation route, when the target vehicle is located on a second-level road, at least one waypoint of 1 kilometer that the target vehicle is about to travel is determined from the navigation route, and the like.

The preset length segment in fig. 6 is represented by a dashed segment S, and the distance between two adjacent waypoints is not limited in the embodiment of the present application, and may be, for example, 5 meters, 10 meters, 20 meters, and the like.

S302, acquiring the current position, the driving state and the navigation route of other vehicles in the search range taking at least one path point as the center.

After the path points are determined, each path point is taken as a circle center, a circle is made in the map by a preset search radius, and each vehicle on the road uploads the current position, the driving state and the navigation route of the vehicle, so that the step S303 is continuously executed on the vehicle in the circular area at the current moment according to the position of each vehicle on the road.

S303, if the navigation routes of other vehicles comprise road sections with preset lengths, taking the other vehicles as surrounding vehicles matched with the navigation routes of the target users

For a vehicle within the circular area, by determining whether the road route of the vehicle includes the section of the preset length determined in step S301, i.e. the surrounding vehicles can be determined, and with continued reference to fig. 6, the vehicles B and C exist in the search range located at the waypoints (indicated by triangles in the figure) in fig. 6, since the navigation route (not shown in the figure) of the vehicle B is driven toward the constant-safe street after the quiet road, but is not driven toward the safe street, the preset-length section S on which the target vehicle a is to travel is not included in the navigation route thereof, and therefore B does not belong to the vehicles in the vicinity of the target vehicle a, and the navigation route map of the vehicle C, not shown) has a high degree of coincidence with the target vehicle a, the navigation route of the vehicle C also includes the target vehicle a, i.e., the preset-length link S to be traveled, and therefore the vehicle C is regarded as a vehicle in the vicinity of the target vehicle a.

It should be understood that, since the number of route points is not limited to one, when determining the nearby vehicles for a plurality of route points, there may be a case of duplicate vehicles, so after obtaining the nearby vehicles corresponding to all the route points, the duplicate vehicles may also be screened. In particular, the filtering may be based on a unique identification of the vehicle, such as a license plate number.

On the basis of the above embodiments, as an optional embodiment, the embodiment of the present application can implement real-time safety distance between vehicles, and can also implement vehicle type reminding, so that when a car is in a luxury condition, the car can be reminded, specifically: when the vehicle uploads the information to the server, the vehicle type information of the vehicle is also included.

Acquiring a nearby vehicle matching the navigation route of the target user within the search range, further comprising:

obtaining vehicle type information of surrounding vehicles;

triggering the navigation prompt includes:

Specifically, the vehicle types of the peripheral vehicles which need to be triggered can be counted in advance to obtain a vehicle type table, after the vehicle type information of the peripheral vehicles is obtained, the vehicle types of the peripheral vehicles are searched in the vehicle type table, if the vehicle type information of the peripheral vehicles is found, it is determined that the vehicle type information of the peripheral vehicles meets the preset conditions, the navigation prompt containing the vehicle type information of the peripheral vehicles is triggered, if the vehicle type information of the peripheral vehicles is not found, it is determined that the vehicle type information of the peripheral vehicles does not meet the preset conditions, and the navigation prompt containing the vehicle type information of the peripheral vehicles is not.

On the basis of the above embodiments, as an alternative embodiment, the running state includes a direction and a speed;

and determining the front-back relationship and the distance between the surrounding vehicle and the target vehicle according to the current positions of the surrounding vehicle and the target vehicle.

Specifically, after the current positions of the target vehicle and the nearby vehicle are determined, the front-rear relationship between the nearby vehicle and the target vehicle can be determined according to the road where the target vehicle and the nearby vehicle are located and the driving direction.

According to the front-back relationship and the distance between the peripheral vehicle and the target vehicle, and by combining the direction and the speed between the peripheral vehicle and the target vehicle, judging whether the target vehicle and the peripheral vehicle are in a safe distance, wherein the method specifically comprises at least one of the following conditions:

when the speed of the rear vehicle is smaller than that of the front vehicle, the distance between the rear vehicle and the front vehicle gradually increases, which means that the possibility of collision between the two vehicles is lower and lower, and therefore it can be determined that the target vehicle is at a safe distance from the surrounding vehicle.

Specifically, the traveling tracks of the vehicle in a subsequent period of time (for example, 5 seconds, 10 seconds, 20 seconds, or the like) may be determined according to the current position and direction of the vehicle, and if it is further calculated, in combination with the speed of the vehicle, that the traveling tracks of the vehicle in the subsequent period of time intersect, it is indicated that the following vehicle collides with the preceding vehicle within the preset time, that is, the target vehicle and the surrounding vehicle are not at the safe inter-vehicle distance.

On the basis of the above embodiment, determining that the target vehicle and the nearby vehicle are not at the safe distance, then further includes:

determining the speed and/or direction of the target vehicle not to collide with the surrounding vehicles, and reminding the target vehicle.

Please refer to fig. 7, which schematically illustrates a driving scenario of a surrounding vehicle and a target vehicle provided in an embodiment of the present application. As shown in the figure, the peripheral vehicle B is located behind the target vehicle a, the straight-line distance between the peripheral vehicle B and the target vehicle a is 50 meters, the direction of the vehicle is represented by the included angle between the head of the peripheral vehicle and the center line of the road, the two vehicles are located in the same lane, and the directions of the two vehicles are both 0 °, if the current speed of the peripheral vehicle B is 25m/s and the current speed of the target vehicle a is 20m/s, it can be calculated that the peripheral vehicle B collides with the target vehicle a after 10 seconds, so that the distance between the two vehicles is determined not to be the safe distance, further, since the distance between the peripheral vehicle B and the target vehicle a is not shortened when the speed of the target vehicle a is adjusted to be more than 25m/s, a prompt for adjusting the speed of the peripheral vehicle to be more than 25m/s can be sent to the target vehicle a, or if it is determined that no other vehicle exists in the preset range on either, the target vehicle a may also be alerted to adjust the direction, which may be 30 ° to the left or 30 ° to the right, so as to guide the target vehicle a to another lane.

On the basis of the above embodiments, as an optional embodiment, the current position, the driving state, and the navigation route of the target vehicle are encrypted by a preset encryption algorithm;

The AES algorithm in the embodiment shown in fig. 3 may be specifically used for encryption, so as to ensure the security of data transmission.

An embodiment of the present application provides a navigation reminding device, as shown in fig. 8, the navigation reminding device may include: the system comprises a target vehicle information acquisition module 101, a peripheral processing information acquisition module 102 and a navigation reminding triggering module 103, and specifically comprises:

a target vehicle information acquisition module 101, configured to acquire a current position, a driving state, and a navigation route of a target vehicle;

the peripheral processing information acquisition module 102 is configured to determine a search range according to the current position of the target vehicle, and acquire a peripheral vehicle within the search range and matching the navigation route of the target vehicle;

and the navigation reminding triggering module 103 is configured to trigger navigation reminding if it is determined that the target vehicle and the neighboring vehicle are not located at a safe vehicle distance according to the current position and the driving state of the neighboring vehicle, which are obtained in advance, and the current position and the driving state of the target vehicle.

The navigation reminding device provided in the embodiment of the present invention specifically executes the process of the above method embodiment, and please refer to the content of the above navigation reminding method embodiment in detail, which is not described herein again. The navigation reminding device provided by the embodiment of the invention obtains the current position, the running state and the navigation route of the target vehicle, determining a search range according to the current position of the target vehicle, matching the surrounding vehicles by combining the navigation route of the target vehicle, the obtained vehicles around are all the vehicles with intersection with the target vehicle on the driving route, so that the samples of safety distance judgment are reduced, the operation efficiency is improved through phase change, the safe distance is calculated by combining the current positions and the driving states of the target vehicle and the surrounding vehicles, so that data with higher accuracy can be obtained, potential accidents caused in the traveling process are reduced, according to the scheme, the safe distance can be judged and reminded in real time in the navigation process, so that even if a driver knows the road relatively, the driver still is willing to open the navigation to receive the navigation reminding, and the utilization rate and the satisfaction degree of the user on the navigation are improved.

On the basis of the foregoing embodiments, as an optional embodiment, the peripheral processing information acquisition module includes:

On the basis of the foregoing embodiments, as an optional embodiment, the peripheral processing information acquiring module further includes:

the navigation reminds trigger module, still includes:

the navigation reminding device further comprises:

On the basis of the foregoing embodiments, as an optional embodiment, the safety determination module is specifically configured to:

on the basis of the foregoing embodiments, as an alternative embodiment, the target vehicle information acquisition module is further configured to:

An embodiment of the present application provides an electronic device, including: a memory and a processor; at least one program stored in the memory for execution by the processor, which when executed by the processor, implements: by acquiring the current position, the driving state and the navigation route of the target vehicle, determining the search range according to the current position of the target vehicle, matching the surrounding vehicles according to the navigation route of the target vehicle, the obtained vehicles around are all the vehicles with intersection with the target vehicle on the driving route, so that the samples of safety distance judgment are reduced, the operation efficiency is improved through phase change, the safe distance is calculated by combining the current positions and the driving states of the target vehicle and the surrounding vehicles, so that data with higher accuracy can be obtained, potential accidents caused in the traveling process are reduced, according to the scheme, the safe distance can be judged and reminded in real time in the navigation process, so that even if a driver knows the road relatively, the driver still is willing to open the navigation to receive the navigation reminding, and the utilization rate and the satisfaction degree of the user on the navigation are improved.

In an alternative embodiment, an electronic device is provided, as shown in fig. 9, the electronic device 4000 shown in fig. 9 comprising: a processor 4001 and a memory 4003. Processor 4001 is coupled to memory 4003, such as via bus 4002. Optionally, the electronic device 4000 may further comprise a transceiver 4004. In addition, the transceiver 4004 is not limited to one in practical applications, and the structure of the electronic device 4000 is not limited to the embodiment of the present application.

The Processor 4001 may be a CPU (Central Processing Unit), a general-purpose Processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (field programmable Gate Array) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor 4001 may also be a combination that performs a computational function, including, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, or the like.

Bus 4002 may include a path that carries information between the aforementioned components. The bus 4002 may be a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The bus 4002 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate only one bus or one type of bus.

The Memory 4003 may be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory) or other types of dynamic storage devices that can store information and instructions, an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), a magnetic Disc storage medium or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to these.

The memory 4003 is used for storing application codes for executing the scheme of the present application, and the execution is controlled by the processor 4001. Processor 4001 is configured to execute application code stored in memory 4003 to implement what is shown in the foregoing method embodiments.

The present application provides a computer-readable storage medium, on which a computer program is stored, which, when running on a computer, enables the computer to execute the corresponding content in the foregoing method embodiments. Compared with the prior art, by acquiring the current position, the running state and the navigation route of the target vehicle, determining a search range according to the current position of the target vehicle, matching the surrounding vehicles by combining the navigation route of the target vehicle, the obtained vehicles around are all the vehicles with intersection with the target vehicle on the driving route, so that the samples of safety distance judgment are reduced, the operation efficiency is improved through phase change, the safe distance is calculated by combining the current positions and the driving states of the target vehicle and the surrounding vehicles, so that data with higher accuracy can be obtained, potential accidents caused in the traveling process are reduced, according to the scheme, the safe distance can be judged and reminded in real time in the navigation process, so that even if a driver knows the road relatively, the driver still is willing to open the navigation to receive the navigation reminding, and the utilization rate and the satisfaction degree of the user on the navigation are improved.

The embodiment of the present application provides a computer program, which includes computer instructions stored in a computer-readable storage medium, and when a processor of a computer device reads the computer instructions from the computer-readable storage medium, the processor executes the computer instructions, so that the computer device executes the contents as shown in the foregoing method embodiment. Compared with the prior art, by acquiring the current position, the running state and the navigation route of the target vehicle, determining a search range according to the current position of the target vehicle, matching the surrounding vehicles by combining the navigation route of the target vehicle, the obtained vehicles around are all the vehicles with intersection with the target vehicle on the driving route, so that the samples of safety distance judgment are reduced, the operation efficiency is improved through phase change, the safe distance is calculated by combining the current positions and the driving states of the target vehicle and the surrounding vehicles, so that data with higher accuracy can be obtained, potential accidents caused in the traveling process are reduced, according to the scheme, the safe distance can be judged and reminded in real time in the navigation process, so that even if a driver knows the road relatively, the driver still is willing to open the navigation to receive the navigation reminding, and the utilization rate and the satisfaction degree of the user on the navigation are improved.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A navigation reminding method is characterized by comprising the following steps:

determining a search range according to the current position of the target vehicle, and acquiring a peripheral vehicle which is matched with the navigation route of the target vehicle in the search range;

and if the target vehicle and the peripheral vehicle are determined not to be in a safe distance according to the acquired current position and the driving state of the peripheral vehicle and the acquired current position and the driving state of the target vehicle, generating a navigation prompt.

2. The navigation reminding method according to claim 1, wherein the determining a search range according to the current position of the target vehicle comprises:

and determining a corresponding search range according to the road grade.

3. The navigation reminding method according to any one of claims 1 or 2, wherein the obtaining of the nearby vehicle within the search range that matches the navigation route of the target vehicle comprises:

determining at least one path point in a preset-length road section to be driven by the target vehicle from the navigation route according to the current position of the target vehicle;

acquiring the current position, the driving state and the navigation route of other vehicles in a search range taking the at least one path point as the center of a circle;

and if the navigation routes of the other vehicles comprise the road sections with the preset length, taking the other vehicles as the peripheral vehicles matched with the navigation routes of the target vehicle.

4. The navigation reminding method according to claim 1, wherein the obtaining of the surrounding vehicles within the search range that match the navigation route of the target user further comprises:

obtaining the vehicle type information of the surrounding vehicle;

the triggering of the navigation prompt includes:

and if the vehicle type information of the peripheral vehicle meets the preset condition, triggering the navigation prompt containing the vehicle type information of the peripheral vehicle.

5. The navigation reminding method according to claim 1, wherein the driving state comprises direction and speed;

if the target vehicle and the surrounding vehicle are determined not to be in the safe vehicle distance according to the current positions and the running states of the target vehicle and the surrounding vehicle, the method also comprises the following steps:

and judging whether the target vehicle and the nearby vehicle are in a safe distance or not according to the front-back relation and the distance between the nearby vehicle and the target vehicle and by combining the directions and the speeds of the nearby vehicle and the target vehicle.

6. The navigation reminding method according to claim 5, wherein the determining whether the target vehicle and the nearby vehicle are at a safe distance or not according to the front-back relationship and the distance between the nearby vehicle and the target vehicle and the direction and the speed of the nearby vehicle and the target vehicle comprises at least one of the following situations:

if the speed of the peripheral vehicle and the rear vehicle in the target vehicle is smaller than the speed of the front vehicle, determining that the target vehicle and the peripheral vehicle are in a safe vehicle distance;

if the speed of a rear vehicle in the peripheral vehicle and the target vehicle is greater than that of a front vehicle, and the rear vehicle is determined not to collide with the front vehicle within preset time according to the current positions, directions and speeds of the peripheral vehicle and the target vehicle, determining that the target vehicle and the peripheral vehicle are in a safe vehicle distance;

and if the speed of the nearby vehicle and the rear vehicle in the target vehicle is greater than that of the front vehicle, and the rear vehicle is determined to collide with the front vehicle within preset time according to the current positions, directions and speeds of the nearby vehicle and the target vehicle, determining that the target vehicle and the nearby vehicle are not in a safe vehicle distance.

7. The navigation reminding method according to claim 1, wherein the current position, the driving state and the navigation route of the target vehicle are encrypted by a preset encryption algorithm;

the method comprises the following steps of determining a search range according to the current position of the target vehicle, and acquiring a peripheral vehicle which is matched with the navigation route of the target user and is in the search range, wherein the method also comprises the following steps:

and decrypting the current position, the running state and the navigation route of the encrypted target vehicle according to a decryption algorithm corresponding to the preset encryption algorithm.

8. A navigation reminder device, comprising:

and the navigation reminding triggering module is used for triggering navigation reminding if the target vehicle and the peripheral vehicle are determined not to be in a safe vehicle distance according to the current position and the running state of the peripheral vehicle, which are acquired in advance, and the current position and the running state of the target vehicle.

9. 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 navigation alert method according to any one of claims 1 to 7 are implemented when the processor executes the program.

10. A computer-readable storage medium storing computer instructions for causing a computer to perform the steps of the navigation reminder method according to any one of claims 1 to 7.

11. A computer program, characterized in that the computer program comprises computer instructions stored in a computer readable storage medium, which when read by a processor of a computer device from the computer readable storage medium, cause the processor to execute the computer instructions, so that the computer device performs the steps of the navigation reminder method according to any one of claims 1 to 7.