WO2024031751A1

WO2024031751A1 - Navigation method, roadside unit, mobile terminal, navigation system and vehicle

Info

Publication number: WO2024031751A1
Application number: PCT/CN2022/115197
Authority: WO
Inventors: 刘明
Original assignee: 湖南三一智能控制设备有限公司
Priority date: 2022-08-09
Filing date: 2022-08-26
Publication date: 2024-02-15
Also published as: CN115265576A

Abstract

A navigation method, a roadside unit (401), a mobile terminal (402), a navigation system and a vehicle. The navigation method comprises: a roadside unit (401) receives destination information sent by a mobile terminal (402) (S101); and the roadside unit (401) acquires advancing direction information on the basis of the destination information, and sends the heading direction information to the mobile terminal (402), wherein the heading direction information is used for guiding the mobile terminal (402) to select a path in a current position, the mode of communication connection between the mobile terminal (402) and the roadside unit (401) is a medium-short range wireless communication mode, and the heading direction information is determined on the basis of a first corresponding relationship among the roadside unit (401), the destination information and the heading direction information (S102). Therefore, a digitalized way-asking navigation mechanism is realized without depending on satellite positioning information and map information, so that effective navigation can be still performed in regions where satellite positioning cannot be carried out, such as underground tunnels, culverts or rooms, and in places where maps cannot be updated timely and effectively due to frequent geographic changes, etc.

Description

Navigation methods, roadside equipment, mobile terminals, navigation systems and vehicles

Cross-references to related applications

This application claims priority to the Chinese patent application with application number 202210952719X and titled "Navigation method, road terminal equipment, mobile terminal, navigation system and vehicle" submitted on August 9, 2022, which is fully incorporated by reference. This article.

Technical field

The present application relates to the field of communication technology, and in particular to a navigation method, road end equipment, mobile terminal, navigation system and vehicle.

Background technique

Navigation is the process and method of guiding objects to move from one point to another along a certain forward route, which brings great convenience to people's travel.

Currently, the main methods for navigating vehicles and pedestrians on land include satellite navigation and inertial navigation. Under normal circumstances, more accurate route navigation can be achieved through the combination of satellite positioning systems and map data. This is currently the most popular and commonly used navigation method. However, satellite navigation relies on the reception of satellite signals and detailed map data. In areas without satellite signals, such as underground tunnels, culverts or indoors, the assistance of other navigation systems is required. At the same time, for places with frequent geographical changes, such as construction sites, or places where detailed mapping of geographical characteristics cannot be carried out, such as military sites, maps cannot be updated in a timely and effective manner, thus making it impossible to ensure the effectiveness of navigation.

Inertial navigation is an autonomous navigation method that does not rely on external information when working. However, it has the problem of insufficient positioning accuracy. It is usually only used to assist satellite navigation for a short period of time. For example, in areas that cannot be covered by satellite signals, inertial navigation Inertial navigation is used to assist within the range to ensure that the position of the object is not lost instantly. If the navigation mode is continued completely, it is difficult to conduct effective navigation independently.

In summary, existing navigation methods cannot achieve effective navigation in the above specific scenarios.

Contents of the invention

In view of the problems existing in the prior art, this application provides a navigation method, road end equipment, mobile terminal, navigation system and vehicle.

This application provides a navigation method, including:

The road end device receives the destination information sent by the mobile terminal;

The road-end device obtains forward direction information based on the destination information, and sends the forward direction information to the mobile terminal; wherein the forward direction information is used to guide the mobile terminal to perform a path at the current location. Optionally, the communication connection method between the mobile terminal and the road-end equipment is a short- to medium-distance wireless communication method; the forward direction information is based on the relationship between the road-end equipment, the destination information and the forward direction information. The first corresponding relationship is determined.

According to the navigation method provided by this application, the road-end device obtains heading information based on the destination information, including:

Send the destination information and the identification information of the road-end device to the cloud;

Receive the forward direction information fed back by the cloud; wherein the forward direction information is obtained by the cloud matching the identification information and the destination information based on the first correspondence relationship.

According to the navigation method provided by this application, the cloud determines the forward direction information through the following steps:

The identification information is matched based on the second correspondence between the road end device and the first mapping relationship, and the first mapping relationship corresponding to the identification information is obtained as the target mapping relationship; wherein, the The first mapping relationship is used to characterize the third corresponding relationship between the destination information and the heading information;

Match the destination information based on the target mapping relationship to obtain the forward direction corresponding to the destination information as the first candidate forward direction;

The heading information is determined based on the first candidate heading.

According to the navigation method provided by this application, the first mapping relationship is updated based on traffic information.

The destination information is matched based on the second mapping relationship to obtain the forward direction corresponding to the destination information as a second candidate forward direction; the second mapping relationship is used to represent the destination information and the A fourth corresponding relationship between forward direction information, the second mapping relationship corresponding to the road-end device;

The heading information is determined based on the second candidate heading.

According to the navigation method provided by this application, it also includes:

The road-end device receives update information sent by the cloud, and the update information is used to update the second mapping relationship; wherein the update information is determined by the cloud based on traffic information.

According to the navigation method provided by this application, the road-end device receives the destination information sent by the mobile terminal and sends the forward direction information to the mobile terminal based on the V2X communication method.

This application also provides a road-end device, including:

a data receiving module for receiving destination information sent by the mobile terminal;

A computing module configured to obtain forward direction information based on the destination information;

A data sending module, configured to send the forward direction information to the mobile terminal; wherein the forward direction information is used to guide the mobile terminal to select a path at the current location, and the mobile terminal and the road end The device communication connection method is a short-to-medium distance wireless communication method; the forward direction information is determined based on the first correspondence between the road end device, the destination information and the forward direction information.

This application also provides a mobile terminal, including:

The first communication module is used to send destination information to the road-end equipment;

The second communication module is used to receive the forward direction information sent by the road end device; wherein the forward direction information is used to guide the mobile terminal to select a path at the current location, and the mobile terminal communicates with the road end device. The communication connection method of the end device is a short- to medium-distance wireless communication method; the forward direction information is determined based on the first correspondence between the road end device, the destination information and the forward direction information.

This application also provides a navigation system, including: road end equipment and mobile terminal;

The mobile terminal is used to send destination information to the road end device;

The road-end device is configured to obtain forward direction information based on the destination information, and send the forward direction information to the mobile terminal; wherein the forward direction information is used to guide the mobile terminal to proceed at the current location. For the selection of the path, the communication method between the mobile terminal and the road-end device is a short- to medium-distance wireless communication method; the forward direction information is based on the road-end device, the destination information and the forward direction information. The first correspondence between them is determined.

This application also provides a vehicle, including: a mobile terminal as described in any one of the above.

The navigation method, road-end equipment, mobile terminal, navigation system and vehicle provided by this application receive the destination information sent by the mobile terminal through the road-end equipment, obtain the forward direction information based on the destination information, and send the forward direction information to the mobile phone. The terminal guides the mobile terminal to select a path at the current location through the forward direction information. The forward direction information is determined based on the first correspondence between the road end device, the destination information and the forward direction information. The entire navigation process does not require Relying on satellite positioning information and map information, a digital way-finding navigation mechanism is implemented, so that in areas where satellite positioning cannot be performed, such as underground tunnels, culverts or indoors, and places where map updates cannot be timely and effective such as frequent geographical changes, the system can still Ability to navigate effectively.

Description of drawings

In order to more clearly illustrate the technical solutions in this application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are the drawings used in the present application. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is a schematic flow chart of the navigation method provided by this application;

Figure 2 is a schematic structural diagram of the road end equipment provided by this application;

Figure 3 is a schematic structural diagram of a mobile terminal provided by this application;

Figure 4 is a schematic structural diagram of the navigation system provided by this application;

Figure 5 is one of the schematic diagrams of the working principle of the navigation system provided by this application;

Figure 6 is a second schematic diagram of the working principle of the navigation system provided by this application;

Figure 7 is a schematic structural diagram of an electronic device provided by this application.

Detailed ways

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application. , not all examples. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

The navigation method of this application is described below in conjunction with Figure 1. The navigation method of this application is executed by electronic equipment such as computers or the hardware and/or software thereof. Figure 1 is a schematic flow chart of the navigation method of this application. As shown in Figure 1, the navigation method of this application includes:

S101. The road end device receives the destination information sent by the mobile terminal.

Specifically, the road-end equipment can be installed at a key location on the roadside, for example, a location where there are multiple paths to be selected, such as an intersection. The mobile terminal may be a mobile device capable of communicating with the roadside device. The mobile device may be installed on a vehicle or carried by a pedestrian. The destination information is the location to be reached. The user can directly input the destination information into the mobile terminal, or the user can select the destination location on the mobile terminal to send the destination information to the roadside device through the mobile terminal.

S102. The road-end device obtains forward direction information based on the destination information, and sends the forward direction information to the mobile terminal; wherein the forward direction information is used to guide the mobile terminal to proceed at the current location. For the selection of the path, the communication method between the mobile terminal and the road-end device is a short- to medium-distance wireless communication method; the forward direction information is based on the road-end device, the destination information and the forward direction information. The first correspondence between them is determined.

Specifically, the communication connection method between the mobile terminal and the road-side equipment is a short- to medium-range wireless communication method, such as V2X (Vehicle to Set according to actual needs, such as 200, 500 meters, 1000 meters, etc. Forward direction information, that is, the direction to go at the current location if you reach the destination, for example, east, west, south, north. The current position is the actual position of the mobile terminal at the current moment. The distance between the current position and the road-end device is less than or equal to the preset distance. That is, the mobile terminal is located near the road-end device at the current moment. The preset distance can be set according to the distance between the mobile terminal and the road-end device to establish a communication connection. When the mobile terminal establishes a communication connection with the road-end device, it means that the mobile terminal reaches the vicinity of the road-end device.

Traditional navigation methods all rely on accurate positioning systems. In environments where precise positioning is not possible, effective navigation cannot be achieved. In the embodiment of the present application, since the position of the road-end device is fixed, the mobile terminal can determine which direction it needs to go at the current position based on the forward direction information fed back by the road-end device to select a path, and there is no need to The mobile terminal performs precise positioning, so that effective navigation can still be carried out in areas such as underground tunnels, culverts or indoors where satellite positioning is not possible.

At the same time, traditional navigation methods usually generate one or more complete navigation paths at the beginning of navigation, which requires a large amount of calculation and requires high computing power of the system. In the embodiment of this application, when the mobile terminal is in the on state, each time it passes a road-end device, it can send destination information to the road-end device it passes at the current moment, so as to obtain the location near the road-end device (i.e., the current location). According to the forward direction information, path planning is carried out station by station until the destination is reached, so that the destination is reached under the guidance of the forward direction information fed back by each road end device, and navigation is completed without the need to form a complete navigation path at one time, that is, this application What the embodiment implements is a digital way-finding navigation mechanism. The implementation process is simple and efficient, and effectively reduces the requirements on the computing power of the system.

It can be understood that the mobile terminal can also display signal connection information when passing by the road-end device, and determine whether to send destination information to the road-end device passing by at the current time based on the user's operation information. For example, the mobile terminal arrives at the road-end device. When the device is nearby, after establishing a communication connection with the road-end device, the signal connection information or prompt information is displayed on the mobile terminal to prompt the user whether it is necessary to send destination information to the road-end device to obtain the forward direction information, thereby improving the navigation process. flexibility.

It should be noted that each end device can be managed uniformly through the cloud, so that each end device can be maintained and upgraded through the cloud to ensure that each end device can operate normally and work stably. Among them, the cloud can maintain and upgrade various terminal devices through mobile cellular networks, such as LTE (Long Term Evolution, Long Term Evolution) mobile network and 5G mobile network.

The specific method for the road-end device to obtain the forward direction information based on the destination information can be set according to actual needs. For example, the road-end device can directly obtain the forward direction information based on the destination information, or it can send the destination information to other servers, such as , cloud servers, etc., to determine the forward direction information through other servers, and return the determined forward direction information to the road end device. The road-end device or other server may determine the forward direction information corresponding to the destination information based on the first correspondence between the road-end device, destination information and forward direction information. The first corresponding relationship can be set in advance and stored in the form of a lookup table so that it can be called at any time during the navigation process.

Traditional satellite navigation also relies on detailed and specific map data. For places with frequent geographical changes, such as construction sites, or places where detailed mapping of geographical characteristics cannot be carried out, such as military sites, maps cannot be updated in a timely and effective manner, making navigation impossible. effectiveness. At the same time, the satellite navigation mechanism based on map information is relatively complex and requires high computing performance and map data storage performance. In the embodiment of the present application, the forward direction information corresponding to the destination information is determined based on the first correspondence between the road end equipment, destination information and forward direction information. There is no need to rely on map data, so it is impossible to respond in time to frequent geographical changes. Where the map is updated effectively, effective navigation can still be performed, and the calculation process is simple and efficient, effectively reducing the requirements for computing performance. At the same time, compared to the storage of map data, the storage of lookup tables has lower storage performance requirements, thus effectively reducing the storage performance requirements.

After the road-end equipment sends the forward direction information to the mobile terminal, the mobile terminal can display the forward direction information through the display device and/or broadcast the forward direction information through the voice broadcast device. For example, it can directly feed back the forward direction information to the road-end device. The information can be displayed or broadcast, or the forward direction information fed back by the road-end equipment can be converted through the mobile terminal and then displayed or broadcast, for example, into information that is easy for the user to understand, such as left turn, right turn, U-turn, go straight, etc. , so that users can quickly and accurately select paths based on forward direction information. The specific way in which the mobile terminal converts the forward direction information fed back by the road-end device can be set according to actual needs. For example, the forward direction information fed back by the road-end device can be converted according to the current forward direction of the mobile terminal.

It can be seen that the embodiment of the present application receives the destination information sent by the mobile terminal through the road end device, obtains the forward direction information based on the destination information, and sends the forward direction information to the mobile terminal, so as to guide the mobile terminal through the forward direction information. The current location is used to select the path without relying on satellite positioning information, so that effective navigation can still be carried out in areas where satellite positioning is not possible, such as underground tunnels, culverts or indoors.

At the same time, the embodiment of the present application determines the forward direction information corresponding to the destination information based on the first correspondence between the road end equipment, destination information and forward direction information, without relying on map data, which cannot be timely and effective for frequent geographical changes. In places where map updates are performed locally, effective navigation can still be performed, and the calculation process is simple and efficient, effectively reducing the requirements for computing performance and storage performance.

In addition, the embodiment of the present application uses a question-based navigation mechanism, which eliminates the need to form a complete navigation path at once, making the implementation process simple and efficient, effectively reducing the requirements on the computing power of the system.

Based on the above embodiment, the road-end device obtains heading information based on the destination information, including:

Specifically, the identification information of the road-end device is information used to identify the road-end device. For example, it may be the ID of the road-end device, the location information of the road-end device, etc. Among them, the location information of the road-end equipment can be determined based on the fixed coordinates of the geographical location where the road-end equipment is installed. It is understandable that in areas covered by satellite signals, the location information of road-end equipment can also be provided through GPS (Global Positioning System).

After receiving the destination information sent by the mobile terminal, the road-end device can send the destination information and the identification information of the road-end device itself to the cloud to determine the forward direction information through the cloud, and return the forward direction information to the road end. equipment, which sends forward direction information to the corresponding mobile terminal through the road end equipment. Wherein, the cloud matches the received identification information and destination information based on the first corresponding relationship to obtain the forward direction information and returns it to the road end device.

The first correspondence relationship between the road end equipment, destination information and forward direction information can be represented by a first lookup table that stores the mapping relationship between the road end equipment, destination information and forward direction information, or it can It is represented by a plurality of second lookup tables that store mapping relationships between destination information and forward direction information, where the second lookup tables correspond to the road end equipment one-to-one.

When the first correspondence is represented by the first lookup table, the cloud can match the received identification information and destination information with the road-end equipment and destination information in the first lookup table to obtain the forward direction information.

When the first correspondence is represented by a second lookup table that corresponds one-to-one with the road-end device, the cloud can determine the second lookup table corresponding to the road-end device based on the correspondence between the identification information and the second lookup table, and will receive The received destination information is matched with the destination information in the second lookup table to obtain forward direction information.

In the embodiment of this application, the road-end device sends the destination information and the identification information of the road-end device to the cloud, and receives the forward direction information obtained by the cloud matching the identification information and the destination information based on the first correspondence relationship, which can effectively reduce Computing power requirements for road-end equipment, and ensuring the real-time and validity of the results of determining the forward direction information.

Based on any of the above embodiments, the cloud determines the forward direction information through the following steps:

The heading information is determined based on the first candidate heading.

Specifically, the first correspondence relationship may include a first mapping relationship and a second correspondence relationship. The first mapping relationship is used to represent the correspondence relationship between the destination information and the forward direction information. The second correspondence relationship is between the road end device and the first Correspondence between mapping relationships.

Based on the second corresponding relationship between the road-end device and the first mapping relationship, the first mapping relationship corresponding to the road-end device, that is, the target mapping relationship, can be determined. The second corresponding relationship may be a corresponding relationship between the identification information and the number of the first mapping relationship. The received identification information is matched based on the second correspondence relationship to obtain the number of the first mapping relationship corresponding to the identification information, and based on the first mapping relationship The number of the mapping relationship determines the target mapping relationship. The corresponding first mapping relationship can also be directly named through the identification information of each road end device, so as to directly search for the corresponding first mapping relationship according to the received identification information and obtain the target mapping relationship.

The first mapping relationship may be preset, or may be updated in real time based on traffic information, such as traffic control information, road condition information, weather information, etc. The first mapping relationship can be stored in the cloud or a storage device connected to the cloud server in the form of a second lookup table, so that it can be called at any time during the process of determining the forward direction information.

After determining the target mapping relationship, the cloud matches the destination information sent by the road-end device according to the target mapping relationship to obtain the forward direction information corresponding to the destination information as the first candidate forward direction. The first candidate forward direction may be one forward direction or multiple forward directions. When the first forward direction candidate is one forward direction, the first forward direction candidate can be directly used as the forward direction information and returned to the road end device; when the first forward direction candidate is multiple forward directions, the multiple forward directions can be The direction is also returned to the road-end device as forward direction information, providing users with a variety of forward direction choices. It can also be selected from multiple firsts according to preset constraints (such as shortest path, shortest time, highway priority, highway avoidance, etc.) The forward direction that satisfies the constraint conditions is selected from the candidate forward directions as the forward direction information and returned to the road end device.

In the embodiment of the present application, the cloud matches the identification information based on the second correspondence between the road-side device and the first mapping relationship to obtain the target mapping relationship, and matches the destination information based on the target mapping relationship to obtain the first candidate advance direction to determine the forward direction information based on the first candidate forward direction, which effectively improves the efficiency and accuracy of obtaining forward direction information, thereby ensuring the real-time and accuracy of navigation.

Based on any of the above embodiments, the first mapping relationship is updated based on traffic information.

Specifically, traffic information such as traffic control information, road condition information, weather information, etc. The cloud can obtain the traffic information of each road in real time to update the first mapping relationship stored in the cloud in real time based on the traffic information, so that in the process of determining the forward direction information based on the first mapping relationship, congested road sections can be effectively avoided, and thus Guide users to reach their destination more efficiently.

Based on any of the above embodiments, the road-end device obtains heading information based on the destination information, including:

The destination information is matched based on the second mapping relationship to obtain the forward direction corresponding to the destination information as a second candidate forward direction; the second mapping relationship is used to represent the destination information and the A fourth correspondence relationship between forward direction information, the second mapping relationship corresponds to the road end device;

The heading information is determined based on the second candidate heading.

Specifically, the first correspondence relationship includes a plurality of second mapping relationships, each second mapping relationship corresponds to the road-end device one-to-one, and the second mapping relationship is used to represent the destination information and the forward direction information at the corresponding road-end device. correspondence between them. The second mapping relationship may be preset, or may be updated in real time based on traffic information, such as traffic control information, road condition information, weather information, etc. The second mapping relationship can be stored in the corresponding road-end device or a storage device connected to the road-end device in the form of a third lookup table, so that it can be called at any time during the process of determining the forward direction information. That is, each road-end device stores a second mapping relationship corresponding to the road-end device.

After receiving the destination information sent by the mobile terminal, the road end device can match the destination information sent by the mobile terminal according to the second mapping relationship to obtain the forward direction information corresponding to the destination information as the second forward candidate. direction. The second candidate forward direction may be one forward direction or multiple forward directions. When the second forward direction candidate is one forward direction, the second forward direction candidate can be directly used as forward direction information and sent to the mobile terminal; when the second forward direction candidate is multiple forward directions, the multiple forward directions can be At the same time, it is sent to the mobile terminal as forward direction information, providing users with multiple forward direction choices. They can also advance from multiple second candidates according to preset constraints (such as shortest path, shortest time, high-speed priority, avoid high-speed, etc.) The forward direction that satisfies the constraint conditions is selected from the directions and sent to the mobile terminal as the forward direction information.

In the embodiment of the present application, the road-end device matches the destination information based on the second mapping relationship to obtain the second candidate forward direction, and determines the forward direction information based on the second candidate forward direction, so that during the navigation process, the road-end device can directly determine It also feeds back the forward direction information, which is not affected by the quality of the network connection between the road-end device and other servers (such as the cloud). The acquisition process of the forward direction information is simple and efficient, ensuring real-time navigation.

Based on any of the above embodiments, it also includes:

Specifically, if the forward direction information is determined through the road-end device, the cloud can generate update information based on the traffic information of each road obtained in real time, and update the second mapping relationship stored in each road-end device in real time through the update information, thereby In the process of determining the forward direction information based on the second mapping relationship, congested road sections can be effectively avoided, thereby guiding the user to reach the destination more efficiently.

Based on any of the above embodiments, the road-end device receives the destination information sent by the mobile terminal and sends the forward direction information to the mobile terminal based on the V2X communication method.

Specifically, V2X refers to the information exchange between vehicles and the outside world. When the mobile terminal communicates with the road-side device through V2X wireless communication, the road-side device can be a V2X RSU (Road Side Unit), and the mobile terminal can be a V2X system configured on the vehicle, or a mobile phone that supports V2X functions. equipment to realize communication between mobile terminals and road-side equipment. The information transmission has high stability and low delay, effectively ensuring the navigation effect.

The road-end equipment provided by this application is described below. The road-end equipment described below and the navigation method described above can be mutually referenced. The structural diagram of the road end equipment of this application is shown in Figure 2, including:

Data receiving module 201, used to receive destination information sent by the mobile terminal;

Calculation module 202, configured to obtain forward direction information based on the destination information;

The data sending module 203 is used to send the forward direction information to the mobile terminal; wherein the forward direction information is used to guide the mobile terminal to select a path at the current location, and the mobile terminal is connected to the road. The communication connection method of the end device is a short- to medium-distance wireless communication method; the forward direction information is determined based on the first correspondence between the road end device, the destination information and the forward direction information.

Based on the above embodiment, the calculation module 202 is specifically used to:

Based on any of the above embodiments, the cloud is specifically used for:

The heading information is determined based on the first candidate heading.

Based on any of the above embodiments, the calculation module 202 is specifically used to:

The heading information is determined based on the second candidate heading.

Based on any of the above embodiments, an update module is also included, and the update module is used for:

Receive update information sent by the cloud, where the update information is used to update the second mapping relationship; wherein the update information is determined by the cloud based on traffic information.

The mobile terminal provided by the present application is described below. The mobile terminal described below and the navigation method described above can be mutually referenced. The structural diagram of the mobile terminal of this application is shown in Figure 3, including:

The first communication module 301 is used to send destination information to the road end device;

The second communication module 302 is used to receive the forward direction information sent by the road end device; wherein the forward direction information is used to guide the mobile terminal to select a path at the current location, and the mobile terminal and the The communication connection method of the road-end equipment is a short- to medium-distance wireless communication method; the forward direction information is determined based on the first correspondence between the road-end equipment, the destination information and the forward direction information.

The navigation system provided by the present application will be described below. The navigation system described below and the navigation method described above may be mutually referenced. As shown in Figure 4, the navigation system of this application includes: road end equipment 401 and mobile terminal 402;

The mobile terminal 402 is used to send destination information to the road end device 401;

The road-end device 401 is configured to obtain forward direction information based on the destination information, and send the forward direction information to the mobile terminal 402; wherein the forward direction information is used to guide the mobile terminal 402 in To select a path at the current location, the mobile terminal 402 communicates with the road-end device 401 in a short- to medium-distance wireless communication mode; the forward direction information is based on the road-end device 401 and the destination information. and the first corresponding relationship between the forward direction information.

Specifically, the road-end device 401 can be set at a key location on the roadside, for example, a location where there are multiple paths to be selected, such as an intersection.

As an optional implementation method, the cloud may also be included. The cloud is used for unified management of each road-side device 401 to maintain and upgrade each road-side device 401 through the cloud to ensure that each road-side device 401 can operate normally and Stable job. Among them, the cloud can maintain and upgrade each end device 401 through a mobile cellular network, such as an LTE mobile network and a 5G mobile network.

Based on the above embodiment, the cloud 501 is also included;

The road-end device 401 is configured to send the destination information and the identification information of the road-end device 401 to the cloud 501;

The cloud 501 is configured to match the identification information and the destination information based on the first correspondence relationship to obtain the forward direction information, and send the forward direction information to the road end device 401 .

Specifically, in this embodiment, the tasks of path planning and selection are performed by the cloud 501.

As an optional implementation, the schematic diagram of the working principle of the navigation system is shown in Figure 5, including:

The mobile terminal 402 sends the destination information to the road end device 401;

After receiving the destination information, the road-end device 401 sends the destination information and its own identification information to the cloud 501;

The cloud 501 determines the forward direction information based on the destination information and identification information, and sends the forward direction information to the road end device 401;

The road end device 401 forwards the forward direction information sent by the cloud 501 to the corresponding mobile terminal 402.

At the same time, the cloud 501 is also used to maintain and upgrade the road-end equipment 401.

As an optional implementation, the cloud 501 is specifically used for:

The identification information is matched based on the second correspondence between the road end device 401 and the first mapping relationship, and the first mapping relationship corresponding to the identification information is obtained as the target mapping relationship; wherein, The first mapping relationship is used to represent the third corresponding relationship between the destination information and the heading information;

The heading information is determined based on the first candidate heading.

As an optional implementation, the cloud 501 is also used for:

The first mapping relationship is updated based on traffic information.

Based on any of the above embodiments, the road end equipment 401 is specifically used for:

The destination information is matched based on the second mapping relationship to obtain the forward direction corresponding to the destination information as a second candidate forward direction; the second mapping relationship is used to represent the destination information and the The fourth correspondence relationship between forward direction information, the second mapping relationship corresponds to the road end device 401;

The heading information is determined based on the second candidate heading.

Specifically, in this embodiment, the tasks of path planning and selection are performed by the road end device 401.

As an optional implementation, the schematic diagram of the working principle of the navigation system is shown in Figure 6, including:

After receiving the destination information, the road end device 401 determines the forward direction information based on the destination information, and sends the forward direction information to the corresponding mobile terminal 402.

At the same time, the road-end equipment 401 is maintained and upgraded through the cloud 501.

As an optional implementation, the cloud 501 is also used for:

Update information is determined based on the traffic information and sent to the road end device 401. The update information is used to update the second mapping relationship.

An embodiment of the present application also provides a vehicle, including the mobile terminal described in any of the above embodiments.

Specifically, vehicles such as commercial vehicles, passenger cars, etc.

As an optional implementation manner, the vehicle may be a vehicle equipped with a V2X system or a mobile device that supports V2X functions.

Figure 7 illustrates a schematic diagram of the physical structure of an electronic device. As shown in Figure 7, the electronic device may include: a processor (processor) 701, a communications interface (Communications Interface) 702, a memory (memory) 703 and a communication bus 704. Among them, the processor 701, the communication interface 702, and the memory 703 complete communication with each other through the communication bus 704. The processor 701 can call logical instructions in the memory 703 to perform a navigation method, which method includes: the road end device receives destination information sent by the mobile terminal;

In addition, the above-mentioned logical instructions in the memory 703 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code. .

On the other hand, the present application also provides a computer program product. The computer program product includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions. When the program instructions are read by a computer, When executed, the computer can execute the navigation method provided by each of the above methods. The method includes: the road end device receives the destination information sent by the mobile terminal;

On the other hand, the present application also provides a non-transitory computer-readable storage medium on which a computer program is stored. The computer program is implemented when executed by a processor to perform the navigation methods provided above. The method includes: The device receives destination information sent by the mobile terminal;

The device embodiments described above are only illustrative. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in One location, or it can be distributed across multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Persons of ordinary skill in the art can understand and implement the method without any creative effort.

Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the part of the above technical solutions that essentially contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disc, optical disk, etc., including a number of instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in various embodiments or certain parts of the embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent substitutions are made to some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present application.

Claims

A navigation method that includes:

The road end device receives the destination information sent by the mobile terminal;

The road-end device obtains forward direction information based on the destination information, and sends the forward direction information to the mobile terminal; wherein the forward direction information is used to guide the mobile terminal to perform a path at the current location. Optionally, the communication connection method between the mobile terminal and the road-end equipment is a short- to medium-distance wireless communication method; the forward direction information is based on the relationship between the road-end equipment, the destination information and the forward direction information. The first corresponding relationship is determined.
The navigation method according to claim 1, wherein the road-end device obtains heading information based on the destination information, including:

Send the destination information and the identification information of the road-end device to the cloud;

Receive the forward direction information fed back by the cloud; wherein the forward direction information is obtained by the cloud matching the identification information and the destination information based on the first correspondence relationship.
The navigation method according to claim 2, wherein the cloud determines the forward direction information through the following steps:

The identification information is matched based on the second correspondence between the road end device and the first mapping relationship, and the first mapping relationship corresponding to the identification information is obtained as the target mapping relationship; wherein, the The first mapping relationship is used to characterize the third corresponding relationship between the destination information and the heading information;

Match the destination information based on the target mapping relationship to obtain the forward direction corresponding to the destination information as the first candidate forward direction;

The heading information is determined based on the first candidate heading.
The navigation method according to claim 3, wherein the first mapping relationship is updated based on traffic information.
The navigation method according to claim 1, wherein the road-end device obtains heading information based on the destination information, including:

The destination information is matched based on the second mapping relationship to obtain the forward direction corresponding to the destination information as a second candidate forward direction; the second mapping relationship is used to represent the destination information and the A fourth corresponding relationship between forward direction information, the second mapping relationship corresponding to the road-end device;

The heading information is determined based on the second candidate heading.
The navigation method according to claim 5, further comprising:

The road-end device receives update information sent by the cloud, and the update information is used to update the second mapping relationship; wherein the update information is determined by the cloud based on traffic information.
The navigation method according to any one of claims 1 to 6, wherein the road-end device receives the destination information sent by the mobile terminal and sends the forward direction information to the mobile terminal based on V2X communication mode. of mobile terminals.
A road-side equipment including:

a data receiving module for receiving destination information sent by the mobile terminal;

A computing module configured to obtain forward direction information based on the destination information;

A data sending module, configured to send the forward direction information to the mobile terminal; wherein the forward direction information is used to guide the mobile terminal to select a path at the current location, and the mobile terminal and the road end The device communication connection method is a short-to-medium distance wireless communication method; the forward direction information is determined based on the first correspondence between the road end device, the destination information and the forward direction information.
A mobile terminal including:

The first communication module is used to send destination information to the road-end equipment;

The second communication module is used to receive the forward direction information sent by the road end device; wherein the forward direction information is used to guide the mobile terminal to select a path at the current location, and the mobile terminal communicates with the road end device. The communication connection method of the end device is a short- to medium-distance wireless communication method; the forward direction information is determined based on the first correspondence between the road end device, the destination information and the forward direction information.
A navigation system, including: road terminal equipment and mobile terminal;

The mobile terminal is used to send destination information to the road end device;

The road-end device is configured to obtain forward direction information based on the destination information, and send the forward direction information to the mobile terminal; wherein the forward direction information is used to guide the mobile terminal to proceed at the current location. For the selection of the path, the communication method between the mobile terminal and the road-end device is a short- to medium-distance wireless communication method; the forward direction information is based on the road-end device, the destination information and the forward direction information. The first correspondence between them is determined.
A vehicle, comprising: the mobile terminal according to claim 9.