Navigation method, road-side device, mobile terminal, navigation system, and vehicle

Abstract

The present application relates to the field of communication, and provide a kind of navigation method, road end device, mobile terminal, navigation system and vehicle, navigation method includes: road end device receives destination information sent by mobile terminal;Road end device obtains advancing direction information based on destination information, and sends advancing direction information to mobile terminal;Wherein, advancing direction information is used to guide mobile terminal to select path in current position, and the mode that mobile terminal is communicatively connected with road end device is short-range wireless communication mode;Advancing direction information is determined based on the first corresponding relationship between road end device, destination information and advancing direction information.This application does not need to rely on satellite positioning information and map information, realizes a kind of digital ask road navigation mechanism, so that in underground tunnel, culvert or indoor etc. cannot be carried out satellite positioning area and geography changes frequently etc. cannot be promptly and effectively carried out map update place, still can carry out effective navigation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, in particular to a navigation method, a road terminal device, a mobile terminal, a navigation system and a vehicle. BACKGROUND

[0002] Navigation is the process and method of guiding an object to move along a certain route from one point to another, which brings great convenience to people's travel.

[0003] Currently, the methods for navigating vehicles and pedestrians on land mainly include satellite navigation and inertial navigation. Generally, through the combination of satellite positioning system and map data, relatively accurate route navigation can be achieved, which is also the most popular and universal navigation method at present. However, satellite navigation relies on the reception of satellite signals and detailed and specific map data, and in areas without satellite signals, such as underground tunnels, culverts or indoors, other navigation systems need to be assisted. At the same time, for places with frequent geographical changes, such as construction sites, or places where detailed mapping of geographical features is not possible, such as military sites, the map cannot be updated in time and effectively, so the effectiveness of navigation cannot be guaranteed.

[0004] Inertial navigation is a self-contained navigation method that does not rely on external information, but it has the problem of insufficient positioning accuracy, and is usually only used to assist satellite navigation for a short time. For example, in areas where satellite signals cannot cover, inertial navigation is used to assist for a short time to ensure that the position of the object will not be lost instantaneously, and the navigation mode will be completed, which is difficult to independently navigate effectively.

[0005] In summary, the existing navigation method cannot achieve effective navigation in the above-mentioned specific scenarios. SUMMARY

[0006] In view of the problems in the prior art, the present application provides a navigation method, a road terminal device, a mobile terminal, a navigation system and a vehicle.

[0007] The present application provides a navigation method, comprising:

[0008] The road terminal device receives destination information sent by the mobile terminal;

[0009] The road terminal device obtains the 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 select a path at the current position, the communication connection mode between the mobile terminal and the road terminal device is a short and medium distance wireless communication mode; the forward direction information is determined based on a first correspondence relationship between the road terminal device, the destination information and the forward direction information.

[0010] According to the navigation method provided by the present invention, the roadside device obtains forward direction information based on the destination information, including:

[0011] Send the destination information and the identification information of the roadside equipment to the cloud;

[0012] The system receives the forward direction information fed back from 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.

[0013] According to the navigation method provided by the present invention, the cloud determines the forward direction information through the following steps:

[0014] The identification information is matched based on the second correspondence between the roadside equipment and the first mapping relationship to obtain the first mapping relationship corresponding to the identification information, which is used as the target mapping relationship; wherein, the first mapping relationship is used to characterize the third correspondence between the destination information and the forward direction information;

[0015] The destination information is matched based on the target mapping relationship to obtain the forward direction corresponding to the destination information, which is used as the first candidate forward direction;

[0016] The forward direction information is determined based on the first candidate forward direction.

[0017] According to the navigation method provided by the present invention, the first mapping relationship is obtained by updating traffic information.

[0018] According to the navigation method provided by the present invention, the roadside device obtains forward direction information based on the destination information, including:

[0019] The destination information is matched based on the second mapping relationship to obtain the direction of travel corresponding to the destination information, which is used as the second candidate direction of travel; the second mapping relationship is used to characterize the fourth correspondence between the destination information and the direction of travel information, and the second mapping relationship corresponds to the roadside equipment;

[0020] The forward direction information is determined based on the second candidate forward direction.

[0021] The navigation method provided by the present invention further includes:

[0022] The roadside equipment receives update information sent from the cloud, which is used to update the second mapping relationship; wherein the update information is determined by the cloud based on traffic information.

[0023] According to the navigation method provided by the present invention, the roadside device receives the destination information sent by the mobile terminal and sends the forward direction information to the mobile terminal based on V2X communication.

[0024] The present invention also provides a roadside device, comprising:

[0025] The data receiving module is used to receive destination information sent by the mobile terminal;

[0026] The calculation module is used to obtain forward direction information based on the destination information;

[0027] A data transmission module 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 communicates with the roadside equipment via a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside equipment, the destination information, and the forward direction information.

[0028] The present invention also provides a mobile terminal, comprising:

[0029] The first communication module is used to send destination information to the roadside equipment;

[0030] The second communication module is used to receive forward direction information sent by the roadside device; wherein, the forward direction information is used to guide the mobile terminal to select a path at the current location, and the communication connection between the mobile terminal and the roadside device is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside device, the destination information, and the forward direction information.

[0031] The present invention also provides a navigation system, comprising: roadside equipment and a mobile terminal;

[0032] The mobile terminal is used to send destination information to the roadside device;

[0033] The roadside device is used 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 select a path at the current location, and the communication connection between the mobile terminal and the roadside device is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside device, the destination information, and the forward direction information.

[0034] The present invention also provides a vehicle comprising: a mobile terminal as described in any of the above embodiments.

[0035] The navigation method, roadside equipment, mobile terminal, navigation system, and vehicle provided by this invention receive destination information sent by the mobile terminal through the roadside equipment, obtain forward direction information based on the destination information, and send the forward direction information to the mobile terminal to guide the mobile terminal to select a path at the current location. The forward direction information is determined based on a first correspondence between the roadside equipment, the destination information, and the forward direction information. The entire navigation process does not rely on satellite positioning information or map information, realizing a digital wayfinding and navigation mechanism. Thus, effective navigation can still be performed in areas where satellite positioning is not possible, such as underground tunnels, culverts, or indoors, as well as in places where map updates are not timely and effective due to frequent geographical changes. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is a flowchart illustrating the navigation method provided by the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of the road-end equipment provided by the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the mobile terminal provided by the present invention;

[0040] Figure 4 This is a schematic diagram of the navigation system provided by the present invention;

[0041] Figure 5 This is one of the schematic diagrams illustrating the working principle of the navigation system provided by the present invention;

[0042] Figure 6 This is the second schematic diagram illustrating the working principle of the navigation system provided by this invention;

[0043] Figure 7 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0045] The following is combined Figure 1 The navigation method of the present invention is described. The navigation method of the present invention is executed by an electronic device such as a computer, or by hardware and / or software therein. Figure 1 This is a flowchart illustrating the navigation method of the present invention, as shown below. Figure 1 As shown, the navigation method of the present invention includes:

[0046] S101. The roadside equipment receives destination information sent by the mobile terminal.

[0047] Specifically, roadside equipment can be installed at key locations along the road, such as intersections where multiple routes are available. The mobile terminal can be a mobile device capable of communicating with the roadside equipment; this device can be mounted in a vehicle or carried by a pedestrian. The destination information is the desired location. Users can either directly input the destination into the mobile terminal or select the destination location on the mobile terminal, which will then send the destination information to the roadside equipment.

[0048] S102, the roadside 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 select a path at the current location, and the communication connection between the mobile terminal and the roadside device is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside device, the destination information, and the forward direction information.

[0049] Specifically, the communication connection between the mobile terminal and the roadside equipment is a short-to-medium range wireless communication method, such as V2X (Vehicle to X), WiFi, Bluetooth, etc. The maximum communication distance for this method can be set according to actual needs, such as 200, 500, or 1000 meters. The direction of travel information indicates the direction the mobile terminal needs to travel from its current location to reach its destination, such as east, west, south, or north. The current location refers to the actual location of the mobile terminal at the current moment. The distance between the current location and the roadside equipment is less than or equal to a preset distance, meaning the mobile terminal is currently near the roadside equipment. The preset distance can be set based on the distance at which the mobile terminal establishes a communication connection with the roadside equipment. Establishing a communication connection means the mobile terminal has reached the vicinity of the roadside equipment.

[0050] Traditional navigation methods rely on precise positioning systems, which cannot achieve effective navigation in environments where precise positioning is not possible. However, in this embodiment of the invention, since the location of the roadside equipment is fixed, the mobile terminal can determine the direction to move from its current position based on the forward direction information fed back by the roadside equipment, thus selecting a path. Furthermore, precise positioning of the mobile terminal is not required, enabling effective navigation even in areas where satellite positioning is impossible, such as underground tunnels, culverts, or indoor spaces.

[0051] Meanwhile, traditional navigation methods typically generate one or more complete navigation paths at the start of navigation, which involves a large amount of computation and requires high system computing power. In this embodiment of the invention, the mobile terminal, when enabled, can send destination information to each roadside device it passes through at any given time. This allows it to obtain forward direction information near the location of that roadside device (i.e., the current location), and perform path planning station by station until the destination is reached. Guided by the forward direction information fed back from each roadside device, the mobile terminal arrives at its destination, completing navigation. This eliminates the need to form a complete navigation path all at once. In other words, this embodiment of the invention implements a digital wayfinding and navigation mechanism that is simple and efficient, effectively reducing the computational requirements of the system.

[0052] Understandably, mobile terminals can also display signal connection information when passing by roadside equipment and determine whether to send destination information to the roadside equipment they are currently passing based on the user's operation information. For example, when a mobile terminal arrives near a roadside equipment, after establishing a communication connection with the roadside equipment, it can display signal connection information or prompt information on the mobile terminal to prompt the user whether they need to send destination information to the roadside equipment to obtain forward direction information, thereby improving the flexibility of the navigation process.

[0053] It should be noted that all terminal devices can be managed centrally through the cloud, enabling cloud-based maintenance and upgrades to ensure their normal and stable operation. Specifically, the cloud can perform maintenance and upgrades via mobile cellular networks, such as LTE (Long Term Evolution) and 5G mobile networks.

[0054] The specific method by which the roadside equipment obtains the direction of travel information based on the destination information can be set according to actual needs. For example, the roadside equipment can directly obtain the direction of travel information based on the destination information, or it can send the destination information to other servers, such as cloud servers, to determine the direction of travel information and return the determined direction of travel information to the roadside equipment. The roadside equipment or other servers can determine the direction of travel information corresponding to the destination information based on a first correspondence between the roadside equipment, the destination information, and the direction of travel information. This first correspondence can be pre-set and stored in the form of a lookup table so that it can be retrieved at any time during navigation.

[0055] Traditional satellite navigation relies on detailed map data. However, for locations with frequently changing geography, such as construction sites, or locations where detailed mapping is impossible, such as military sites, timely and effective map updates are not possible, thus compromising navigation effectiveness. Furthermore, map-based satellite navigation mechanisms are complex, demanding high computational and map data storage performance. In contrast, this invention determines the direction of travel corresponding to the destination information based on a first correspondence between roadside equipment, destination information, and direction of travel information. This eliminates the need for map data, enabling effective navigation even in locations with frequently changing geography where timely and effective map updates are impossible. The calculation process is simple and efficient, effectively reducing computational performance requirements. Moreover, compared to map data storage, lookup table storage has lower storage performance requirements, further reducing storage performance constraints.

[0056] After the roadside equipment sends the direction of travel information to the mobile terminal, the mobile terminal can display the direction of travel information through a display device and / or broadcast the direction of travel information through a voice broadcast device. For example, it can directly display or broadcast the direction of travel information fed back by the roadside equipment, or it can convert the direction of travel information fed back by the roadside equipment into information that is easy for users to understand, such as left turn, right turn, U-turn, straight ahead, etc., so that users can quickly and accurately choose a route based on the direction of travel information. The specific method by which the mobile terminal converts the direction of travel information fed back by the roadside equipment can be set according to actual needs. For example, it can convert the direction of travel information fed back by the roadside equipment based on the current direction of travel of the mobile terminal.

[0057] Therefore, the embodiments of the present invention receive destination information sent by a mobile terminal through roadside equipment, obtain forward direction information based on the destination information, and send the forward direction information to the mobile terminal so as to guide the mobile terminal to select a path at the current location through the forward direction information. This does not require satellite positioning information, so effective navigation can still be carried out in areas where satellite positioning is not possible, such as underground tunnels, culverts or indoors.

[0058] Meanwhile, the embodiments of the present invention determine the direction of travel information corresponding to the destination information based on the first correspondence between the roadside equipment, destination information and direction of travel information, without relying on map data. Therefore, effective navigation can still be performed in places where the geography changes frequently and the map cannot be updated in a timely and effective manner. Moreover, the calculation process is simple and efficient, effectively reducing the requirements for computing performance and storage performance.

[0059] In addition, the embodiments of the present invention use a route-finding navigation mechanism, which eliminates the need to form a complete navigation path at once, making the process simple and efficient and effectively reducing the computational requirements of the system.

[0060] Based on the above embodiments, the roadside equipment obtains forward direction information based on the destination information, including:

[0061] Send the destination information and the identification information of the roadside equipment to the cloud;

[0062] The system receives the forward direction information fed back from 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.

[0063] Specifically, the identification information of roadside equipment refers to the information used to identify the roadside equipment, such as its ID and location information. The location information can be determined based on the fixed coordinates of the geographical location where the roadside equipment is installed. It is understandable that in areas with satellite signal coverage, the location information of the roadside equipment can also be provided via GPS (Global Positioning System).

[0064] After receiving destination information from a mobile terminal, the roadside equipment can send the destination information and its own identification information to the cloud. The cloud then determines the direction of travel information and returns it to the roadside equipment, which in turn sends the direction of travel information to the corresponding mobile terminal. Specifically, the cloud matches the received identification information and destination information based on a first correspondence to obtain the direction of travel information and returns it to the roadside equipment.

[0065] The first correspondence between roadside equipment, destination information, and direction of travel information can be represented by a first lookup table that stores the mapping relationship between roadside equipment, destination information, and direction of travel information, or by multiple second lookup tables that store the mapping relationship between destination information and direction of travel information, wherein the second lookup table corresponds one-to-one with the roadside equipment.

[0066] When the first correspondence is represented by the first lookup table, the cloud can match the received identification information and destination information with the roadside equipment and destination information in the first lookup table respectively to obtain the forward direction information.

[0067] When the first correspondence is represented by a second lookup table that corresponds one-to-one with the roadside equipment, the cloud can determine the second lookup table corresponding to the roadside equipment based on the correspondence between the identification information and the second lookup table, and match the received destination information with the destination information in the second lookup table to obtain the forward direction information.

[0068] In this embodiment of the invention, the roadside device sends the destination information and the identification information of the roadside 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. This can effectively reduce the computing power requirements of the roadside device and ensure the real-time performance and effectiveness of the forward direction information determination result.

[0069] Based on any of the above embodiments, the cloud determines the forward direction information through the following steps:

[0070] The identification information is matched based on the second correspondence between the roadside equipment and the first mapping relationship to obtain the first mapping relationship corresponding to the identification information, which is used as the target mapping relationship; wherein, the first mapping relationship is used to characterize the third correspondence between the destination information and the forward direction information;

[0071] The destination information is matched based on the target mapping relationship to obtain the forward direction corresponding to the destination information, which is used as the first candidate forward direction;

[0072] The forward direction information is determined based on the first candidate forward direction.

[0073] Specifically, the first correspondence may include a first mapping relationship and a second correspondence relationship. The first mapping relationship is used to characterize the correspondence between destination information and forward direction information, and the second correspondence relationship is the correspondence between roadside equipment and the first mapping relationship.

[0074] Based on the second correspondence between the roadside equipment and the first mapping relationship, the first mapping relationship corresponding to the roadside equipment, i.e., the target mapping relationship, can be determined. The second correspondence can be a correspondence between identification information and the number of the first mapping relationship. Based on the second correspondence, the received identification information is matched to obtain the number of the first mapping relationship corresponding to that identification information, and the target mapping relationship is determined based on the number of the first mapping relationship. Alternatively, the corresponding first mapping relationships can be directly named using the identification information of each roadside equipment, allowing direct lookup of the corresponding first mapping relationship based on the received identification information to obtain the target mapping relationship.

[0075] The first mapping relationship can be pre-defined or updated in real time based on traffic information, such as traffic control information, road condition information, and weather information. This first mapping relationship can be stored in the cloud or on a storage device connected to a cloud server in the form of a second lookup table, so that it can be accessed at any time during the process of determining the direction of travel.

[0076] After determining the target mapping relationship, the cloud platform matches the destination information sent by the roadside equipment according to the target mapping relationship to obtain the forward direction information corresponding to the destination information, which is used as the first candidate forward direction. The first candidate forward direction can be one or multiple forward directions. When there is only one first candidate forward direction, it can be directly used as the forward direction information and returned to the roadside equipment. When there are multiple first candidate forward directions, multiple forward directions can be returned to the roadside equipment simultaneously, providing users with multiple forward direction options. Alternatively, based on preset constraints (such as shortest path, shortest time, high-speed priority, high-speed avoidance, etc.), the forward direction that meets the constraints can be selected from multiple first candidate forward directions and used as the forward direction information to be returned to the roadside equipment.

[0077] In this embodiment of the invention, the cloud matches the identification information based on the second correspondence between the roadside 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 forward direction. The forward direction information is then determined based on the first candidate forward direction, which effectively improves the efficiency and accuracy of obtaining the forward direction information, thereby ensuring the real-time performance and accuracy of navigation.

[0078] Based on any of the above embodiments, the first mapping relationship is obtained by updating traffic information.

[0079] Specifically, traffic information includes traffic control information, road condition information, and weather information. The cloud can obtain traffic information for each road in real time, and update the first mapping relationship stored in the cloud in real time based on the traffic information. In the process of determining the direction of travel based on the first mapping relationship, it can effectively avoid congested road sections and guide users to their destination more efficiently.

[0080] Based on any of the above embodiments, the roadside device obtains forward direction information based on the destination information, including:

[0081] The destination information is matched based on the second mapping relationship to obtain the direction of travel corresponding to the destination information, which is used as the second candidate direction of travel; the second mapping relationship is used to characterize the fourth correspondence between the destination information and the direction of travel information, and the second mapping relationship corresponds to the roadside equipment;

[0082] The forward direction information is determined based on the second candidate forward direction.

[0083] Specifically, the first correspondence includes multiple second mapping relationships, each corresponding one-to-one with a roadside device. The second mapping relationship characterizes the correspondence between destination information and direction of travel information at the corresponding roadside device. The second mapping relationships can be pre-set or updated in real-time based on traffic information such as traffic control information, road condition information, and weather information. These second mapping relationships can be stored in the corresponding roadside device or a storage device connected to the roadside device in the form of a third lookup table, so that they can be retrieved at any time during the determination of direction of travel information. That is, each roadside device stores a second mapping relationship corresponding to that roadside device.

[0084] After receiving destination information from a mobile terminal, the roadside equipment can match the destination information according to a second mapping relationship to obtain the corresponding forward direction information, which serves as the second candidate forward direction. The second candidate forward direction can be one or multiple forward directions. When there is only one second candidate forward direction, it can be directly sent to the mobile terminal as forward direction information. When there are multiple second candidate forward directions, all forward directions can be sent to the mobile terminal simultaneously, providing the user with multiple forward direction options. Alternatively, based on preset constraints (such as shortest path, shortest time, high-speed priority, high-speed avoidance, etc.), a forward direction that meets the constraints can be selected from multiple second candidate forward directions and sent to the mobile terminal as forward direction information.

[0085] In this embodiment of the invention, the roadside device matches destination information based on a second mapping relationship to obtain a second candidate direction of travel. Based on the second candidate direction of travel, the direction of travel information is determined. Thus, during navigation, the roadside device can directly determine and feed back the direction of travel information without being affected by the network connection quality between the roadside device and other servers (e.g., the cloud). Moreover, the process of obtaining the direction of travel information is simple and efficient, ensuring the real-time performance of navigation.

[0086] Based on any of the above embodiments, it further includes:

[0087] The roadside equipment receives update information sent from the cloud, which is used to update the second mapping relationship; wherein the update information is determined by the cloud based on traffic information.

[0088] Specifically, if the direction of travel information is determined by roadside equipment, the cloud can generate updated information based on the real-time traffic information of each road, and update the second mapping relationship stored in each roadside equipment in real time through the updated information. In the process of determining the direction of travel information based on the second mapping relationship, it can effectively avoid congested road sections and guide users to their destination more efficiently.

[0089] Based on any of the above embodiments, the roadside equipment receives the destination information sent by the mobile terminal and sends the forward direction information to the mobile terminal via V2X communication.

[0090] Specifically, V2X refers to vehicle-to-everything (V2X) communication. When a mobile terminal communicates with roadside equipment via V2X wireless communication, the roadside equipment can be a V2X RSU (Road Side Unit), and the mobile terminal can be a V2X system installed on the vehicle or a mobile device that supports V2X functionality. This enables communication between the mobile terminal and the roadside equipment, resulting in high information transmission stability and low latency, effectively ensuring navigation performance.

[0091] The roadside device provided by this invention is described below. The roadside device described below can be referred to in correspondence with the navigation method described above. A schematic diagram of the structure of the roadside device of this invention is shown below. Figure 2 As shown, it includes:

[0092] The data receiving module 201 is used to receive destination information sent by the mobile terminal;

[0093] Calculation module 202 is used to obtain forward direction information based on the destination information;

[0094] The data transmission 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 communicates with the roadside equipment via a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside equipment, the destination information, and the forward direction information.

[0095] Based on the above embodiments, the calculation module 202 is specifically used for:

[0096] Send the destination information and the identification information of the roadside equipment to the cloud;

[0097] The system receives the forward direction information fed back from 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.

[0098] Based on any of the above embodiments, the cloud is specifically used for:

[0099] The identification information is matched based on the second correspondence between the roadside equipment and the first mapping relationship to obtain the first mapping relationship corresponding to the identification information, which is used as the target mapping relationship; wherein, the first mapping relationship is used to characterize the third correspondence between the destination information and the forward direction information;

[0100] The destination information is matched based on the target mapping relationship to obtain the forward direction corresponding to the destination information, which is used as the first candidate forward direction;

[0101] The forward direction information is determined based on the first candidate forward direction.

[0102] Based on any of the above embodiments, the first mapping relationship is obtained by updating traffic information.

[0103] Based on any of the above embodiments, the computing module 202 is specifically used for:

[0104] The destination information is matched based on the second mapping relationship to obtain the direction of travel corresponding to the destination information, which is used as the second candidate direction of travel; the second mapping relationship is used to characterize the fourth correspondence between the destination information and the direction of travel information, and the second mapping relationship corresponds to the roadside equipment;

[0105] The forward direction information is determined based on the second candidate forward direction.

[0106] Based on any of the above embodiments, an update module is further included, the update module being used for:

[0107] The system receives update information sent from the cloud, which is used to update the second mapping relationship; wherein the update information is determined by the cloud based on traffic information.

[0108] Based on any of the above embodiments, the roadside equipment receives the destination information sent by the mobile terminal and sends the forward direction information to the mobile terminal via V2X communication.

[0109] The mobile terminal provided by this invention will be described below. The mobile terminal described below can be referred to in correspondence with the navigation method described above. A schematic diagram of the structure of the mobile terminal of this invention is shown below. Figure 3 As shown, it includes:

[0110] The first communication module 301 is used to send destination information to the roadside equipment;

[0111] The second communication module 302 is used to receive forward direction information sent by the roadside device; wherein, the forward direction information is used to guide the mobile terminal to select a path at the current location, and the communication connection between the mobile terminal and the roadside device is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside device, the destination information and the forward direction information.

[0112] The navigation system provided by this invention is described below. The navigation system described below can be referred to in correspondence with the navigation method described above. For example... Figure 4 As shown, the navigation system of the present invention includes: a roadside device 401 and a mobile terminal 402;

[0113] The mobile terminal 402 is used to send destination information to the roadside device 401;

[0114] The roadside device 401 is used 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 to select a path at the current location, and the communication connection between the mobile terminal 402 and the roadside device 401 is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence relationship between the roadside device 401, the destination information, and the forward direction information.

[0115] Specifically, the roadside device 401 can be installed at key locations on the roadside, such as at intersections where there are multiple paths to choose from.

[0116] As an optional implementation, a cloud platform may also be included. This cloud platform is used for unified management of each terminal device 401, enabling maintenance and upgrades of each terminal device 401 to ensure their normal and stable operation. The cloud platform can perform maintenance and upgrades of each terminal device 401 via a mobile cellular network, such as an LTE mobile network or a 5G mobile network.

[0117] Based on the above embodiments, it also includes a cloud-based 501;

[0118] The roadside device 401 is used to send the destination information and the identification information of the roadside device 401 to the cloud 501;

[0119] The cloud 501 is used to match the identification information and the destination information based on the first correspondence to obtain the forward direction information, and send the forward direction information to the roadside device 401.

[0120] Specifically, in this embodiment, the task of path planning and selection is performed by the cloud 501.

[0121] As an optional implementation method, a schematic diagram of the working principle of the navigation system is shown below. Figure 5 As shown, it includes:

[0122] Mobile terminal 402 sends destination information to roadside device 401;

[0123] After receiving the destination information, the roadside device 401 sends the destination information and its own identification information to the cloud 501;

[0124] Cloud-based 501 determines the direction of travel information based on destination and identification information, and sends the direction of travel information to roadside device 401;

[0125] The roadside device 401 forwards the forward direction information sent by the cloud 501 to the corresponding mobile terminal 402.

[0126] Meanwhile, Cloud 501 is also used for maintenance and upgrades of Roadside Equipment 401.

[0127] As an optional implementation, the cloud 501 is specifically used for:

[0128] The identification information is matched based on the second correspondence between the roadside device 401 and the first mapping relationship to obtain the first mapping relationship corresponding to the identification information, which is used as the target mapping relationship; wherein, the first mapping relationship is used to characterize the third correspondence between the destination information and the forward direction information;

[0129] The destination information is matched based on the target mapping relationship to obtain the forward direction corresponding to the destination information, which is used as the first candidate forward direction;

[0130] The forward direction information is determined based on the first candidate forward direction.

[0131] As an optional implementation, the cloud 501 is also used for:

[0132] The first mapping relationship is updated based on traffic information.

[0133] Based on any of the above embodiments, the roadside device 401 is specifically used for:

[0134] The destination information is matched based on the second mapping relationship to obtain the forward direction corresponding to the destination information, which is used as the second candidate forward direction; the second mapping relationship is used to characterize the fourth correspondence between the destination information and the forward direction information, and the second mapping relationship corresponds to the road end device 401;

[0135] The forward direction information is determined based on the second candidate forward direction.

[0136] Specifically, in this embodiment, the task of path planning and selection is performed by the roadside device 401.

[0137] As an optional implementation method, a schematic diagram of the working principle of the navigation system is shown below. Figure 6 As shown, it includes:

[0138] Mobile terminal 402 sends destination information to roadside device 401;

[0139] After receiving the destination information, the roadside device 401 determines the direction of travel information based on the destination information and sends the direction of travel information to the corresponding mobile terminal 402.

[0140] Meanwhile, maintenance and upgrades of roadside equipment 401 are carried out via cloud-based 501.

[0141] As an optional implementation, the cloud 501 is also used for:

[0142] Based on traffic information, update information is determined and sent to the roadside device 401. The update information is used to update the second mapping relationship.

[0143] This invention also provides a vehicle that includes the mobile terminal described in any of the above embodiments.

[0144] Specifically, vehicles include commercial vehicles and passenger vehicles.

[0145] As an alternative implementation, the vehicle can be a vehicle equipped with a V2X system or a mobile device that supports V2X functionality.

[0146] Figure 7 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 7 As shown, the electronic device may include a processor 701, a communications interface 702, a memory 703, and a communication bus 704, wherein the processor 701, communications interface 702, and memory 703 communicate with each other via the communication bus 704. The processor 701 can call logical instructions in the memory 703 to execute a navigation method, which includes: the roadside device receiving destination information sent by the mobile terminal;

[0147] The roadside 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 select a path at the current location, and the communication connection between the mobile terminal and the roadside device is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside device, the destination information, and the forward direction information.

[0148] Furthermore, the logical instructions in the aforementioned memory 703 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0149] On the other hand, the present invention also provides a computer program product, the computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer, the computer is able to execute the navigation method provided by the above methods, the method including: a roadside device receiving destination information sent by a mobile terminal;

[0150] The roadside 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 select a path at the current location, and the communication connection between the mobile terminal and the roadside device is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside device, the destination information, and the forward direction information.

[0151] In another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the navigation methods provided above, the method comprising: a roadside device receiving destination information sent by a mobile terminal;

[0152] The roadside 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 select a path at the current location, and the communication connection between the mobile terminal and the roadside device is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside device, the destination information, and the forward direction information.

[0153] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0154] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0155] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A navigation method, characterized in that, include: The roadside equipment receives destination information sent by the mobile terminal; The roadside 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 select a path at the current location, and the communication connection between the mobile terminal and the roadside device is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside device, the destination information, and the forward direction information; The roadside equipment obtains forward direction information based on the destination information, including: The destination information and the identification information of the roadside device are sent to the cloud, where the identification information of the roadside device is the location information of the roadside device. 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, and the first correspondence relationship is represented as a first lookup table storing the mapping relationship between roadside equipment, destination information and forward direction information; The cloud platform determines the forward direction information through the following steps: The identification information is matched based on the second correspondence between the roadside equipment and the first mapping relationship to obtain the first mapping relationship corresponding to the identification information, which is used as the target mapping relationship; wherein, the first mapping relationship is used to characterize the third correspondence between the destination information and the forward direction information; The destination information is matched based on the target mapping relationship to obtain the forward direction corresponding to the destination information, which is used as the first candidate forward direction; The forward direction information is determined based on the first candidate forward direction.

2. The navigation method according to claim 1, characterized in that, The first mapping relationship is obtained by updating traffic information.

3. The navigation method according to claim 1, characterized in that, The roadside equipment obtains forward direction information based on the destination information, including: The destination information is matched based on the second mapping relationship to obtain the direction of travel corresponding to the destination information, which is used as the second candidate direction of travel; the second mapping relationship is used to characterize the fourth correspondence between the destination information and the direction of travel information, and the second mapping relationship corresponds to the roadside equipment; The forward direction information is determined based on the second candidate forward direction.

4. The navigation method according to claim 3, characterized in that, Also includes: The roadside equipment receives update information sent from the cloud, which is used to update the second mapping relationship; wherein the update information is determined by the cloud based on traffic information.

5. The navigation method according to any one of claims 1 to 4, characterized in that, The roadside equipment receives the destination information sent by the mobile terminal and sends the forward direction information to the mobile terminal via V2X communication.

6. A road-end device, characterized in that, include: The data receiving module is used to receive destination information sent by the mobile terminal; The calculation module is used to obtain forward direction information based on the destination information; A data transmission module 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 communicates with the roadside equipment via a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside equipment, the destination information, and the forward direction information. The calculation module is specifically used to send the destination information and the identification information of the roadside device to the cloud, wherein the identification information of the roadside device is the location information of the roadside device; and to receive the forward direction information fed back by the cloud; wherein the forward direction information is obtained by the cloud by matching the identification information and the destination information based on the first correspondence relationship, wherein the first correspondence relationship is represented as a first lookup table storing the mapping relationship between the roadside device, the destination information and the forward direction information; Specifically, the cloud is used to: match the identification information based on a second correspondence between the roadside device and the first mapping relationship to obtain the first mapping relationship corresponding to the identification information, which serves as the target mapping relationship; wherein, the first mapping relationship is used to characterize a third correspondence between the destination information and the forward direction information; match the destination information based on the target mapping relationship to obtain the forward direction corresponding to the destination information, which serves as the first candidate forward direction; and determine the forward direction information based on the first candidate forward direction.

7. A mobile terminal, characterized in that, include: The first communication module is used to send destination information to the roadside equipment; The second communication module is used to receive forward direction information sent by the roadside device; wherein, the forward direction information is used to guide the mobile terminal to select a path at the current location, and the communication connection between the mobile terminal and the roadside device is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence relationship between the roadside device, the destination information, and the forward direction information; the forward direction information is obtained by the cloud based on the first correspondence relationship by matching the identification information sent by the roadside device and the destination information, and the first correspondence relationship is represented as a first lookup table storing the mapping relationship between the roadside device, the destination information, and the forward direction information, and the identification information of the roadside device is the location information of the roadside device; The cloud determines the forward direction information through the following steps: matching the identification information based on a second correspondence between the roadside device and the first mapping relationship to obtain the first mapping relationship corresponding to the identification information, which serves as the target mapping relationship; wherein, the first mapping relationship is used to characterize a third correspondence between the destination information and the forward direction information; matching the destination information based on the target mapping relationship to obtain the forward direction corresponding to the destination information, which serves as the first candidate forward direction; and determining the forward direction information based on the first candidate forward direction.

8. A navigation system, characterized in that, include: Roadside equipment and mobile terminals; The mobile terminal is used to send destination information to the roadside device; The roadside device is used 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 select a path at the current location, and the communication connection between the mobile terminal and the roadside device is a short-to-medium range wireless communication method; the forward direction information is determined based on a first correspondence between the roadside device, the destination information, and the forward direction information; The roadside device is used to send the destination information and the identification information of the roadside device to the cloud, wherein the identification information of the roadside device is the location information of the roadside device; and to receive the forward direction information fed back by the cloud; wherein the forward direction information is obtained by the cloud by matching the identification information and the destination information based on the first correspondence relationship, wherein the first correspondence relationship is represented as a first lookup table storing the mapping relationship between the roadside device, the destination information and the forward direction information; The cloud is used to match the identification information based on a second correspondence between the roadside device and the first mapping relationship to obtain the first mapping relationship corresponding to the identification information, which serves as the target mapping relationship; wherein, the first mapping relationship is used to characterize a third correspondence between the destination information and the forward direction information; the destination information is matched based on the target mapping relationship to obtain the forward direction corresponding to the destination information, which serves as the first candidate forward direction; the forward direction information is determined based on the first candidate forward direction.

9. A vehicle, characterized in that, include: The mobile terminal as described in claim 7.

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