Driving direction icon display method and device, storage medium and processor

Abstract

The invention discloses a driving direction icon display method and device, a storage medium and a processor. When the method provided by the embodiment of the invention is executed, firstly, all roads on which the target vehicle can run and the directions of the roads are determined, and then the reference and non-reference driving directions of each road are determined according to the priority. And then determining a reference combination body which corresponds to the reference driving direction and has a clear identification feature as a target combination body, selecting driving direction icon elements corresponding to the reference driving direction and the non-reference driving direction from the combination body, and extracting and combining the driving direction icon elements to form a final driving direction icon combination. If the recommended driving direction exists on the road, relevant icon elements are displayed in an enhanced mode so as to improve identifiability. The driving direction icon elements contained in the reference assembly have clear identification characteristics, so that when the driving direction icon elements are combined into the final driving direction icon combination, shielding or confusion among the elements can be effectively avoided.

Description

Technical Field

[0001] The present application relates to the field of navigation technology, and in particular to a method, device, storage medium and processor for displaying a driving direction icon. Background Art

[0002] With the acceleration of urbanization, in terms of road traffic, traditional two-way 4-lane and two-way 6-lane roads are difficult to meet the growing and diverse urban traffic needs. What followed was a new road configuration of two-way 10 lanes or even two-way 12 lanes. As the number of lanes increases, the combination of driving lanes has become increasingly complex. In the past, in order to ensure the display of recommended driving directions for complex multi-directional lanes, the navigation system used an exhaustive method to draw the combination of all lanes and all driving direction icons one by one, and screened out valid combinations that meet the current lane driving rules, and set the recommended lanes in the valid combination to highlight. However, when a new lane type is added or the lane driving rules change, using the above method to recommend lanes means that the combination of driving direction icons needs to be adjusted on a large scale, which in turn leads to a large amount of resource investment. It can be seen that the flexibility of the previous solution is poor and the scalability is insufficient.

[0003] To avoid the above problems, the current method is generally to predefine basic drivable direction icons (referred to as basic icons), such as straight ahead, left front, right front, left turn, right turn, left rear, right rear, left U-turn and right U-turn icons. For different lane configurations, a combination that meets the current lane configuration is selected from these basic icons to obtain the final drivable direction icon combination, and the recommended lane in the drivable direction icon combination is set to highlight. However, in this process, problems such as icons blocking each other that affect visual judgment may occur, which in turn affects the driver's accurate judgment of the driving direction. Summary of the invention

[0004] Based on the above problems, the present application provides a method, device, storage medium and processor for displaying a driving direction icon, with the aim of providing a driving direction icon combination that does not affect visual judgment, so that the driver can prepare to judge the driving direction of the driving lane.

[0005] The embodiments of the present application disclose the following technical solutions:

[0006] A method for displaying a driving direction icon, the method comprising:

[0007] Determine a drivable lane for the target vehicle and a drivable direction included in the drivable lane;

[0008] Determining a reference drivable direction and a non-reference drivable direction of the drivable lane according to the number of drivable directions included in the drivable lane and the priority of the drivable directions;

[0009] According to the reference drivable direction, a target assembly corresponding to the drivable lane is determined from a plurality of reference assemblies; the reference assembly includes one or more driving direction icon elements with identification characteristics;

[0010] Extracting the driving direction icon element corresponding to the reference drivable direction and the driving direction icon element corresponding to the non-reference drivable direction from the target combination, and combining them to obtain the driving direction icon combination of the drivable lane;

[0011] If the drivable lane includes a recommended driving direction for the target vehicle, the display effect of the driving direction icon element corresponding to the recommended driving direction is enhanced in the displayed driving direction icon combination; if the drivable lane does not include a recommended driving direction for the target vehicle, the driving direction icon combination is directly displayed.

[0012] In a possible implementation, determining the reference drivable direction and the non-reference drivable direction of the drivable lane according to the number of drivable directions included in the drivable lane and the priority of the drivable directions includes:

[0013] If the number of drivable directions included in the drivable lane is equal to 1, determining that the only drivable direction included in the drivable lane is the reference drivable direction;

[0014] If the number of drivable directions included in the drivable lane is greater than 1, the priority of each drivable direction is queried, and the drivable direction with the highest priority is determined as the benchmark drivable direction, and the drivable direction with a lower priority than the benchmark drivable direction is determined as the non-baseline drivable direction.

[0015] In a possible implementation, the method further includes:

[0016] Determining predefined initial elements for constructing the reference assembly based on traffic rules;

[0017] If the number of initial elements used to construct the reference assembly is equal to 1, the only initial element used to construct the reference assembly is used as the driving direction icon element of the reference assembly;

[0018] If the number of initial elements used to construct the reference assembly is greater than 1, the initial elements used to construct the reference assembly are visually differentiated based on the lane display principle to obtain the driving direction icon element of the reference assembly.

[0019] In a possible implementation, the initial elements used to construct the reference assembly are subjected to visual differentiation processing based on the lane display principle to obtain the driving direction icon element of the reference assembly, including:

[0020] When the number of initial elements used to construct the reference assembly is greater than 1, the initial elements used to construct the reference assembly with the highest priority in the driving direction are determined as reference elements, and the remaining initial elements used to construct the reference assembly are determined as non-reference elements; the reference element and the non-reference element both include a direction indicating portion and a starting portion; the end of the direction indicating portion is connected to the head end of the starting portion;

[0021] The starting part of the reference element is used as a reference line and based on the lane display principle, the starting part of the non-reference element is subjected to the visual differentiation processing to obtain the driving direction icon element of the reference combination.

[0022] In a possible implementation, the plurality of reference combinations include a straight-ahead combination, a left front combination, a right front combination, a left turn combination, a right turn combination, a left U-turn combination, a right U-turn combination, a left rear combination, a right rear combination, a left front and right front combination, a left turn and right U-turn combination, and a left turn and right turn combination;

[0023] The initial elements used to construct the straight-moving combination include a straight-moving direction element, a left front driving direction element, a right front driving direction element, a left turn driving direction element, a right turn driving direction element, a left rear driving direction element, a right rear driving direction element, a left U-turn driving direction element, and a right U-turn driving direction element;

[0024] The initial elements used to construct the left front assembly include a left front driving direction element, a left U-turn driving direction element, a left rear driving direction element, and a left turn driving direction element;

[0025] The initial elements used to construct the right front assembly include a right front driving direction element, a right U-turn driving direction element, a right rear driving direction element, and a right turn driving direction element;

[0026] The initial elements used to construct the left-turn combination include a left-turn driving direction element, a left U-turn driving direction element, and a left rear driving direction element;

[0027] The initial elements used to construct the right-turn combination include a right-turn driving direction element, a right U-turn driving direction element, and a right rear driving direction element;

[0028] The initial elements used to construct the left U-turn assembly include a left U-turn driving direction element and a left rear driving direction element;

[0029] The initial elements used to construct the right U-turn assembly include a right U-turn driving direction element and a right rear driving direction element;

[0030] The initial elements used to construct the left rear assembly include a left rear driving direction element;

[0031] The initial elements used to construct the right rear assembly include a right rear driving direction element;

[0032] The initial elements used to construct the left-front and right-front combination include a left-front driving direction element, a right-front driving direction element, a right-rear driving direction element, a left-rear driving direction element, a left-turn driving direction element, and a right-turn driving direction element;

[0033] The initial elements used to construct the left-turn and right-turn combination include a left-turn driving direction element and a right-turn driving direction element;

[0034] The initial elements used to construct the left-turn and right-turn combination include a left-turn driving direction element and a right-turn driving direction element.

[0035] In a possible implementation, the process of combining the driving direction icon combination includes:

[0036] Adding the reference drivable direction to a first foreground layer, and adding the non-reference drivable direction to a second foreground layer;

[0037] Acquire a background layer of the driving direction icon combination; the background layer is an underlying image used when the driving direction icon combination is displayed; the background layer has a different color from the first foreground layer and the second foreground layer;

[0038] A layer combination mode is determined, and based on the layer combination mode, the first foreground layer, the second foreground layer, and the background layer are layer-combined to obtain the driving direction icon combination.

[0039] A display device for a driving direction icon, the device comprising:

[0040] A first determination unit, used to determine a drivable lane of the target vehicle and a drivable direction included in the drivable lane;

[0041] A second determining unit is used to determine a reference drivable direction and a non-reference drivable direction of the drivable lane according to the number of drivable directions included in the drivable lane and the priority of the drivable directions;

[0042] A third determining unit is used to determine a target assembly corresponding to the drivable lane from a plurality of reference assemblies according to the reference drivable direction; the reference assembly includes one or more driving direction icon elements with identification characteristics;

[0043] an extraction and combination unit, configured to extract the driving direction icon element corresponding to the reference drivable direction and the driving direction icon element corresponding to the non-reference drivable direction from the target combination, and combine them to obtain a driving direction icon combination of the drivable lane;

[0044] a first display unit, for enhancing the display effect of a driving direction icon element corresponding to the recommended driving direction in the displayed driving direction icon combination if the drivable lane includes a recommended driving direction for the target vehicle;

[0045] The second display unit is used to directly display the driving direction icon combination if the drivable lane does not include a recommended driving direction for the target vehicle.

[0046] In a possible implementation manner, the second determining unit specifically includes:

[0047] a fourth determining unit, for determining, if the number of drivable directions included in the drivable lane is equal to 1, the only drivable direction included in the drivable lane as the reference drivable direction;

[0048] The query determination unit is used to query the priority of each of the drivable directions if the number of drivable directions included in the drivable lane is greater than 1, and determine the drivable direction with the highest priority as the reference drivable direction, and determine the drivable direction with a lower priority than the reference drivable direction as the non-reference drivable direction.

[0049] A computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device executes the method for displaying a driving direction icon as described above.

[0050] A processor is used to run a computer program, and when the program is run, the method for displaying a driving direction icon as described above is executed.

[0051] Compared with the prior art, this application has the following beneficial effects:

[0052] The embodiment of the present application first determines all feasible roads that the target vehicle can travel on, and determines the current drivable direction of each road. Subsequently, according to the number of drivable directions contained in each feasible road and their priorities, the reference drivable direction and non-reference drivable direction of the road are determined. Next, a target assembly corresponding to the road is selected from a plurality of predefined reference assemblies according to the reference drivable direction, and these assemblies contain driving direction icon elements with unique identification features. Then, the driving direction icon elements corresponding to the reference drivable direction and the non-reference drivable direction are extracted from the target assembly, and they are combined into a final drivable direction icon assembly. If the road contains a recommended driving direction for the target vehicle, the icon element of the recommended driving direction is enhanced; if there is no recommended driving direction, the driving direction icon assembly is directly displayed. Since the driving direction icon elements in the reference assembly have clear identification features, they can effectively avoid occlusion or confusion between elements when they are combined into the final drivable direction icon assembly. At the same time, compared to the traditional exhaustive method, the present application determines the driving direction icon combination of the drivable lane based on rules and priorities, rather than exhaustively enumerating every possibility, and determines the reference and non-reference directions according to the number and priority of directions contained in the lane, which can greatly reduce the number of combinations that need to be considered, thereby improving calculation efficiency. In addition, if the drivable lane contains a recommended driving direction, the display effect of the corresponding driving direction icon element will be enhanced according to the recommended driving direction. This enhancement can be through special markings, color deepening or other visual means to further improve the recognizability of the recommended route. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor. Figure 1 A schematic diagram of an exhaustive combination icon provided in an embodiment of the present application;

[0054] Figure 2a A schematic diagram of a driving direction combination icon provided in an embodiment of the present application;

[0055] Figure 2b A schematic diagram of a driving direction combination icon provided in an embodiment of the present application;

[0056] Figure 2c A schematic diagram of a driving direction combination icon provided in an embodiment of the present application;

[0057] Figure 3A schematic diagram of a driving direction icon provided in an embodiment of the present application;

[0058] Figure 4 A flowchart of an implementation method of a method for displaying a driving direction icon provided in an embodiment of the present application;

[0059] Figure 5 A flowchart of an implementation method of a method for obtaining a driving direction icon element provided in an embodiment of the present application;

[0060] Figure 6 A schematic diagram of a reference element segmentation diagram provided in an embodiment of the present application;

[0061] Figure 7a A schematic diagram of a straight-moving assembly provided in an embodiment of the present application;

[0062] Figure 7b A schematic diagram of a left front assembly provided in an embodiment of the present application;

[0063] Figure 7c A schematic diagram of a right front assembly provided in an embodiment of the present application;

[0064] Figure 7d A schematic diagram of a left-turn assembly provided in an embodiment of the present application;

[0065] Figure 7e A schematic diagram of a right-turn assembly provided in an embodiment of the present application;

[0066] Figure 7f A schematic diagram of a left U-turn assembly provided in an embodiment of the present application;

[0067] Figure 7g A schematic diagram of a right U-turn assembly provided in an embodiment of the present application;

[0068] Figure 7h A schematic diagram of a left rear assembly provided in an embodiment of the present application;

[0069] Figure 7i A schematic diagram of a right rear assembly provided in an embodiment of the present application;

[0070] Figure 7j A schematic diagram of a left front and right front combination provided in an embodiment of the present application;

[0071] Figure 7k A schematic diagram of a left-turn and right-turn combination provided in an embodiment of the present application;

[0072] Figure 7L A schematic diagram of a left-turn and right-turn combination provided in an embodiment of the present application;

[0073] Figure 8 A flowchart of a combination implementation method of a driving direction icon combination provided in an embodiment of the present application;

[0074] Fig. 9 A schematic diagram of a two-way 12-lane road provided in an embodiment of the present application;

[0075] Fig.10 A schematic diagram of a display device for a driving direction icon provided in an embodiment of the present application. DETAILED DESCRIPTION

[0076] To facilitate understanding of the technical solutions provided by the embodiments of the present application, the background technology involved in the embodiments of the present application will be described below.

[0077] The recommended lane in the navigation system refers to the suggested lane displayed in the navigation system to guide the driver to the best driving route from the starting point to the destination. When the driver approaches an intersection or needs to change lanes, the navigation system will display the recommended lane to help the driver make the right driving choice to reach the destination smoothly.

[0078] With the continuous development of urbanization, urban traffic is facing increasing challenges. Traditional two-way 4-lane and two-way 6-lane roads can no longer effectively cope with the traffic needs in and around the city. Therefore, many cities have begun to take transformation measures to introduce more spacious road configurations, such as two-way 10-lane or even two-way 12-lane. The increase in the number of these new lanes not only enhances the ability to handle traffic flow, but also brings the complexity challenge of lane driving rule combinations in the navigation system.

[0079] In the traditional design method, in order to ensure the display of recommended lanes for complex multi-directional lanes, the navigation system uses an exhaustive method to draw all combinations of lane and driving direction icons one by one and encode each combination, and then selects the valid combinations that meet the current lane rules and sets the recommended lanes in the valid combinations as highlighted (such as Figure 1 As shown, Figure 1 What is shown in the figure are some exhaustive combination icons under the exhaustive method, and each exhaustive combination icon has a corresponding combination code. Figure 1 The black area in the middle is the highlighted area). However, the disadvantage of this approach is that once a new lane type is added or the lane rules are changed, a large number of icon combinations need to be readjusted and produced, which requires huge investment in design resources, and the impact of the change is wide-ranging and far-reaching.

[0080] Modern technology has gradually used predefined basic drivable direction icons. These basic icons include straight ahead, left front, right front, left turn, right turn, left rear, right rear, left U-turn and right U-turn. For different lane configurations, the navigation system can select the appropriate combination from these basic icons to build the final drivable direction icon combination that meets the actual lane requirements, and set the recommended lane in the drivable direction icon combination to highlight. This method not only saves design resources, but also responds to lane changes or new requirements more quickly.

[0081] However, although the icon-based approach can improve efficiency and flexibility, it also has some challenges in practical applications. For example, icons may occlude each other during the combination process (e.g. Figure 2a As shown, Figure 2a The right rear driving direction and the right U-turn driving direction block each other), or there is visual confusion (such as Figure 2b and Figure 2c As shown, Figure 2b There will be visual confusion between the right rear driving direction and the right turn driving direction. Figure 2c There will be visual confusion between the left rear driving direction and the left turn driving direction in the traffic light), which may affect the driver's accurate judgment of the driving direction, thereby increasing the risk of traffic safety.

[0082] Based on this, the embodiment of the present application provides a method for displaying a driving direction icon, and when all the drivable roads of the target vehicle are obtained, all the current drivable directions of each drivable road will be determined. Then, the reference drivable direction and non-reference drivable direction of the drivable lane are determined according to the number of drivable directions contained in the drivable lane and the priority of the drivable direction. Then, according to the reference drivable direction, a target combination corresponding to the drivable lane is determined from a plurality of reference combinations, wherein the reference combination contains one or more driving direction icon elements with identification characteristics. Then, the driving direction icon elements corresponding to the reference drivable direction and the driving direction icon elements corresponding to the non-reference drivable direction are extracted from the target combination, and combined to obtain the driving direction icon combination of the drivable lane. If the drivable lane contains a recommended driving direction for the target vehicle, the display effect of the driving direction icon element corresponding to the recommended driving direction is enhanced in the displayed driving direction icon combination; if the drivable lane does not contain a recommended driving direction for the target vehicle, the driving direction icon combination is directly displayed. This application effectively avoids the occlusion or confusion of driving direction icon elements when combining them through clear identification features. Compared with the traditional exhaustive method, the driving direction icon combination of the drivable lane is determined based on rules and priorities, which reduces the number of combinations considered and improves the calculation efficiency. In addition, the display effect of the corresponding driving direction icon elements is enhanced according to the recommended driving direction, further improving the recognizability of the recommended route.

[0083] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0084] See also Figure 3 , Figure 3 A schematic diagram of a driving direction icon provided in an embodiment of the present application.

[0085] When displaying the driving direction icons for all the drivable lanes currently facing the target vehicle, it is first necessary to determine all the drivable lanes currently facing the target vehicle, and at the same time determine all the drivable directions contained in each drivable lane. Each lane usually has multiple drivable directions, such as straight, left turn, right turn, etc. Before displaying the driving direction icon, it is necessary to clarify all the driving directions allowed for each lane. The driving directions allowed for each lane are defined based on traffic rules.

[0086] Analyze the number of drivable directions contained in each drivable lane. If the number of drivable directions contained in the drivable lane is greater than 1, the drivable direction with the highest priority is determined as the base drivable direction, and the remaining drivable directions are determined as non-base drivable directions. Priorities are pre-assigned to drivable directions. A drivable direction refers to the direction in which a vehicle can travel along the road, usually indicated by lane lines or other guide signs. These priorities may be determined based on the traffic rules of the road, the vehicle's travel direction requirements, and other factors. For example, going straight usually has a higher priority than turning left or right.

[0087] This embodiment is explained by taking the case that the target vehicle has one drivable lane, and the drivable lane includes three drivable directions: a straight drivable direction, a right turn drivable direction, and a left U-turn drivable direction. The priority of the straight drivable direction is higher than that of the right turn drivable direction, and the priority of the right turn drivable direction is higher than that of the left U-turn drivable direction. Therefore, the straight drivable direction is the reference drivable direction, and the right turn drivable direction and the left U-turn drivable direction are non-reference drivable directions.

[0088] According to the straight driving direction, a target combination corresponding to the straight driving direction is determined from a plurality of reference combinations as a straight driving combination. The straight driving combination includes a first straight driving direction element, a first left front driving direction element, a first right front driving direction element, a first left turn driving direction element, a first right turn driving direction element, a first left rear driving direction element, a first right rear driving direction element, a first left U-turn driving direction element, and a first right U-turn driving direction element, which are nine driving direction icon elements with identifiable characteristics.

[0089] The driving direction icon element corresponding to the straight driving direction is extracted from the straight combination as the first straight driving direction element, the driving direction icon element corresponding to the right turn driving direction is extracted from the straight combination as the first right turn driving direction element, and the driving direction icon element corresponding to the left U-turn driving direction is extracted from the straight combination as the first left U-turn driving direction element. The first straight driving direction element, the first right turn driving direction element and the first left U-turn driving direction element are combined to obtain the driving direction icon combination of the drivable lane.

[0090] This embodiment is explained by taking the straight driving direction as the recommended driving direction as an example. Since the driving direction icon combination is obtained by combining the first straight driving direction element, the first right turn driving direction element and the first left turn driving direction element, the driving direction icon combination includes the recommended driving direction for the target vehicle contained in the drivable lane as the first straight driving direction element, so the display effect of the first straight driving direction element is enhanced to obtain the final display icon combination. There are many ways to enhance the display effect of the recommended driving direction, for example, color deepening: by deepening the color of the recommended driving direction, it makes it more conspicuous and easy to identify in the driving direction icon combination; dynamic effect: animation or flashing effect can be used to attract the driver's attention, especially when a decision needs to be made quickly.

[0091] Those skilled in the art will understand that Figure 3 The framework diagram shown is only an example in which the embodiments of the present application can be implemented. The scope of application of the embodiments of the present application is not limited by any aspect of the framework.

[0092] To facilitate understanding of the present application, a method for displaying a driving direction icon provided in an embodiment of the present application is described below in conjunction with the accompanying drawings.

[0093] See also Figure 4 , Figure 4 A flow chart of an implementation method of a method for displaying a driving direction icon provided in an embodiment of the present application is shown as follows: Figure 4 As shown, the method may include S401-S405:

[0094] S401: Determine a drivable lane for the target vehicle and a drivable direction included in the drivable lane.

[0095] A drivable lane refers to a portion of a road where vehicles can travel normally, usually a specific lane on the road that is divided for vehicle travel. The drivable directions included in the drivable lane refer to the driving directions allowed for each specific lane on the road. Specifically, each lane is designated in road traffic design to allow driving in a specific direction. For example, a multi-lane highway has a left lane, a middle lane, and a right lane. The left lane allows left turns and straight driving, which means that the left lane contains two drivable directions: left turn and straight driving; the middle lane only allows straight driving, which means that the middle lane only contains one drivable direction: straight driving; the right lane allows right turns and straight driving, which means that the right lane contains two drivable directions: right turn and straight driving.

[0096] Determining the target vehicle's drivable lanes and the directions they can travel is critical to the vehicle's navigation system, as the drivable lanes determine how effectively the navigation system can display recommended directions to the driver. The navigation system first needs to identify the target vehicle's current road environment, including which drivable lanes are available and which directions each drivable lane corresponds to. This can be achieved through on-board cameras, global positioning systems (GPS), or map data, so that the navigation system can accurately capture the road layout around the vehicle.

[0097] It should be noted that the determination of the drivable directions contained in each drivable lane is based on a variety of factors. These factors include traffic rules, road signs, vehicle navigation needs, and user preferences. The navigation system may also analyze signs and signs on the road to confirm the allowed driving direction of each lane, or rely on real-time lane recognition technology to dynamically update and adjust this information.

[0098] In addition, there are 9 types of driving directions, namely, straight driving direction, left front driving direction, right front driving direction, left turn driving direction, right turn driving direction, left U-turn driving direction, right U-turn driving direction, left rear driving direction, and right rear driving direction. The drivable direction is determined from these 9 types of driving directions.

[0099] It should also be noted that the recommended driving direction is determined by the navigation system based on the vehicle's destination. For example, if the target vehicle needs to turn left or right, but the target vehicle's destination requires a left turn, then the left turn is the recommended driving direction, and the navigation system will enhance the display effect of the recommended driving direction to help the driver make the correct turning decision.

[0100] S402: Determine a reference drivable direction and a non-reference drivable direction of the drivable lane according to the number of drivable directions included in the drivable lane and the priority of the drivable directions.

[0101] The purpose of determining the reference and non-reference drivable directions of a drivable lane according to the number of drivable directions contained in the drivable lane and the priority of these directions is to determine a reference combination that contains both reference and non-reference drivable directions. By considering the number of different directions contained in each lane, the navigation system can identify the main driving direction based on the priority of the drivable directions and match the reference combination for it.

[0102] In a possible implementation, the priority relationship of each driving direction is:

[0103] Straight driving direction > left front driving direction = right front driving direction;

[0104] Left front driving direction = right front driving direction > left turn driving direction = right turn driving direction;

[0105] Left turn driving direction = right turn driving direction > left U-turn driving direction = right U-turn driving direction;

[0106] Left U-turn driving direction = right U-turn driving direction > left rear driving direction = right rear driving direction.

[0107] In a possible implementation, the specific steps of determining the reference drivable direction and the non-reference drivable direction of the drivable lane according to the number of drivable directions included in the drivable lane and the priority of the drivable directions include:

[0108] Determine whether the number of drivable directions included in the drivable lane is greater than 1. If the number of drivable directions included in the drivable lane is not greater than 1 but equal to 1, then the only drivable direction included in the drivable lane is determined as the benchmark drivable direction; if the number of drivable directions included in the drivable lane is greater than 1, then the benchmark and non-baseline drivable directions are determined according to the priorities of these drivable directions, the drivable direction with the highest priority is determined as the benchmark drivable direction, and all other drivable directions with priorities lower than the benchmark drivable direction are determined as non-baseline drivable directions.

[0109] Example 1: Assume that the drivable lane A has only one drivable direction, which is the straight drivable direction. Then the straight drivable direction is the only reference drivable direction, and there is no non-reference drivable direction.

[0110] Example 2: Assume that there are only four drivable directions in drivable lane B, namely, the straight drivable direction, the left front driving direction, the right front driving direction and the left U-turn driving direction. At this time, the straight drivable direction has the highest priority. Then the straight drivable direction is the reference drivable direction, and the left front driving direction, the right front driving direction and the left U-turn driving direction are non-reference drivable directions.

[0111] There is also a situation where there are two drivable directions with the highest priority. In this case, both drivable directions are determined as the reference drivable directions. For example, in Example 3, it is assumed that there are only three drivable directions in drivable lane C, namely, the left front driving direction, the right front driving direction, and the left U-turn driving direction. In this case, the left front driving direction and the right front driving direction have the same priority and both have the highest priority. Then, the left front driving direction and the right front driving direction are both determined as the reference drivable directions, and only the left U-turn driving direction is a non-reference drivable direction.

[0112] S403: Determine a target combination corresponding to the drivable lane from a plurality of reference combinations according to the reference drivable direction.

[0113] After determining the reference drivable direction, the target combination corresponding to the drivable lane can be determined based on the reference drivable direction. The determined target combination is a unique target combination corresponding to the reference drivable direction selected from multiple possible reference combinations. Each reference combination contains one or more driving direction icon elements with identifiable characteristics. When these elements are combined into a driving direction icon combination, there will be no element occlusion, which is used to clearly display the driving direction options that the vehicle can select.

[0114] In one possible implementation, there are 12 reference combinations, namely: straight combination, left front combination, right front combination, left turn combination, right turn combination, left U-turn combination, right U-turn combination, left rear combination, right rear combination, left front and right front combination, left turn and right U-turn combination, and left turn and right turn combination.

[0115] In a possible implementation, each or every two reference drivable directions have a corresponding relationship with a reference combination. The straight driving direction corresponds to the straight driving combination; the left front driving direction corresponds to the left front combination; the right front driving direction corresponds to the right front combination; the left turn driving direction corresponds to the left turn combination; the right turn driving direction corresponds to the right turn combination; the left U-turn driving direction corresponds to the left U-turn combination; the right U-turn driving direction corresponds to the right U-turn combination; the left rear driving direction corresponds to the left rear combination; the right rear driving direction corresponds to the right rear combination; the left front driving direction and the right front driving direction correspond to the left front and right front combination; the left turn driving direction and the right U-turn driving direction correspond to the left turn and right U-turn combination; the left turn driving direction and the right turn driving direction correspond to the left turn and right turn combination.

[0116] When there is only one reference drivable direction, the target combination is determined based on the correspondence between the only reference drivable direction and a reference combination; when there are two reference drivable directions, the target combination needs to be determined based on the correspondence between the two reference drivable directions and a reference combination.

[0117] Exemplarily, the explanation will continue with Example 2. In Example 2, the only reference drivable direction is the straight drivable direction. Then, according to the corresponding relationship of "straight driving direction corresponds to straight combination", it can be determined that the target combination corresponding to the drivable lane B is the straight combination.

[0118] Let's continue the explanation by taking Example 3 as an example. In Example 3, there are two reference drivable directions, namely the left front driving direction and the right front driving direction. Then, according to the corresponding relationship that "the left front driving direction and the right front driving direction correspond to the left front and right front combination", it can be determined that the target combination corresponding to the drivable lane C is the left front and right front combination.

[0119] See also Figure 5 , Figure 5 This is a flowchart of an implementation method of a method for obtaining a driving direction icon element provided in an embodiment of the present application, which can be implemented by the following steps:

[0120] A1: Determine predefined initial elements for constructing the reference assembly based on traffic rules.

[0121] The driving direction icon element is an element in the reference assembly. To obtain the driving direction icon element of the reference assembly, the initial elements used to construct these reference assemblies must first be determined based on traffic rules. The initial elements of these reference assemblies are also predefined based on traffic rules.

[0122] In a possible implementation, the multiple initial elements in the reference combination can be divided into a reference element and one or more non-reference elements, and the driving direction icon combination obtained by combining the reference element with any non-reference element complies with traffic regulations.

[0123] In a possible implementation, the initial elements used to construct the straight-moving combination include a straight-moving direction element, a left front driving direction element, a right front driving direction element, a left turn driving direction element, a right turn driving direction element, a left rear driving direction element, a right rear driving direction element, a left U-turn driving direction element, and a right U-turn driving direction element; Figure 7a As shown, Figure 7a A schematic diagram of a straight assembly provided in an embodiment of the present application. The order of the initial elements of the straight assembly described in the above text is the same as Figure 7aThe order of the initial elements of the straight row combination shown in is consistent;

[0124] The initial elements used to construct the left front assembly include the left front driving direction element, the left U-turn driving direction element, the left rear driving direction element, and the left turn driving direction element; Figure 7b As shown, Figure 7b A schematic diagram of a left front assembly provided in an embodiment of the present application. The order of the initial elements of the left front assembly described in the above text is the same as Figure 7b The order of the initial elements of the left front assembly shown in is consistent;

[0125] The initial elements used to construct the right front assembly include the right front driving direction element, the right U-turn driving direction element, the right rear driving direction element, and the right turn driving direction element; Figure 7c As shown, Figure 7c A schematic diagram of a right front assembly provided in an embodiment of the present application. The order of the initial elements of the right front assembly described in the above text is the same as Figure 7c The order of the initial elements of the right front assembly shown in is consistent;

[0126] The initial elements used to construct the left-turn combination include the left-turn driving direction element, the left U-turn driving direction element, and the left rear driving direction element; Figure 7d As shown, Figure 7d A schematic diagram of a left-turn assembly provided in an embodiment of the present application. The order of the initial elements of the left-turn assembly described in the above text is the same as Figure 7d The order of the initial elements of the left-turn combination shown in is consistent;

[0127] The initial elements used to construct the right-turn combination include the right-turn driving direction element, the right U-turn driving direction element, and the right rear driving direction element; Figure 7e As shown, Figure 7e A schematic diagram of a right-turn assembly provided in an embodiment of the present application. The order of the initial elements of the right-turn assembly described in the above text is the same as Figure 7e The order of the initial elements of the right-turn combination shown in is consistent;

[0128] The initial elements used to construct the left U-turn assembly include the left U-turn driving direction element and the left rear driving direction element; Figure 7f As shown, Figure 7f Schematic diagram of a left U-turn assembly provided in an embodiment of the present application. The order of the initial elements of the left U-turn assembly described in the above text is the same as Figure 7f The order of the initial elements of the left-turn assembly shown in is consistent;

[0129] The initial elements used to construct the right U-turn assembly include the right U-turn driving direction element and the right rear driving direction element; Figure 7g As shown, Figure 7g A schematic diagram of a right U-turn assembly provided in an embodiment of the present application. The order of the initial elements of the right U-turn assembly described in the above text is the same as Figure 7g The order of the initial elements of the right turn assembly shown in is consistent;

[0130] The initial elements used to construct the left rear assembly include the left rear driving direction element; Figure 7h As shown, Figure 7h A schematic diagram of a left rear assembly provided in an embodiment of the present application;

[0131] The initial elements used to construct the right rear assembly include the right rear driving direction element; Figure 7i As shown, Figure 7i A schematic diagram of a right rear assembly provided in an embodiment of the present application;

[0132] The initial elements used to construct the left front and right front combination include a left front driving direction element, a right front driving direction element, a left rear driving direction element, a right rear driving direction element, a left turn driving direction element, and a right turn driving direction element; Figure 7j As shown, Figure 7j A schematic diagram of a left front and right front combination provided in an embodiment of the present application. The order of the initial elements of the left front and right front combination described in the above text is the same as Figure 7j The order of the initial elements of the left front and right front assemblies shown in is consistent;

[0133] The initial elements used to construct the left turn and right U-turn combination include the left turn driving direction element and the right U-turn driving direction element; Figure 7k As shown, Figure 7k A schematic diagram of a left-turn and right-turn combination provided in an embodiment of the present application. The order of the initial elements of the left-turn and right-turn combination described in the above text is the same as Figure 7k The order of the initial elements of the left turn and right turn combination shown in is consistent;

[0134] The initial elements used to construct the left-turn and right-turn combination include the left-turn driving direction element and the right-turn driving direction element. Figure 7L As shown, Figure 7L A schematic diagram of a left-turn and right-turn combination provided in an embodiment of the present application. The order of the initial elements of the left-turn and right-turn combination described in the above text is the same as Figure 7L The order of the initial elements of the left-turn and right-turn combinations shown in is consistent.

[0135] A21: If the number of initial elements used to construct the reference assembly is equal to 1, the only initial element used to construct the reference assembly is used as the driving direction icon element of the reference assembly.

[0136] If there is only one initial element used to construct the benchmark assembly, then this unique initial element will be used as the driving direction icon element in the benchmark assembly.

[0137] A22: If the number of initial elements used to construct the benchmark assembly is greater than 1, the initial elements used to construct the benchmark assembly are visually differentiated based on the lane display principle to obtain the driving direction icon element of the benchmark assembly.

[0138] When there are multiple initial elements for building the reference assembly, it is sufficient to visually differentiate these initial elements based on the lane display principle to obtain the final icon element for indicating the driving direction. The purpose of this is to ensure that the user can clearly identify different driving directions in the navigation system.

[0139] In a possible implementation, the lane display principle includes a principle of aesthetic balance of combined display and a principle of offsetting and not overlapping combined elements.

[0140] The principle of aesthetic balance of the combination display: In the design of driving direction icon elements, the principle of aesthetic balance is an important principle to ensure that the overall layout of the driving direction icon combination achieves harmony and balance when the driving direction icon elements form the driving direction icon combination.

[0141] The principle of non-overlapping offset of combined elements: This principle ensures that when driving direction icon elements form a driving direction icon combination, the overall layout of the driving direction icon combination is such that each driving direction icon element can be clearly displayed without blocking or confusing each other.

[0142] In a possible implementation, if the number of initial elements used to construct the reference assembly is greater than 1 in step A22, the initial elements used to construct the reference assembly are visually differentiated based on the lane display principle to obtain the driving direction icon element of the reference assembly, specifically including:

[0143] When the number of initial elements used to construct the reference assembly is greater than 1, then the initial elements used to construct the reference assembly with the highest priority in the driving direction are first determined as the reference element, and the remaining initial elements used to construct the reference assembly are determined as non-reference elements. These reference elements and non-reference elements both include a direction indicating portion and a starting portion, and the end of the direction indicating portion is connected to the head end of the starting portion. Figure 6 , Figure 6The figure shows a reference element with a left turn as the driving direction. The reference element is divided into two parts by a dotted line. The part ① above the dotted line is the direction indication part, and the part ② below the dotted line is the starting part. The end of the direction indication part ① adjacent to the dotted line is the end of the direction indication part ①, and the end of the starting part ② adjacent to the dotted line is the beginning of the starting part ②.

[0144] Then, after determining the reference element and the non-reference element, the starting part of the reference element is used as the reference line and based on the lane display principle, the starting part of the non-reference element is visually differentiated to obtain the driving direction icon element of the reference combination.

[0145] Additionally, a datum element can be defined as the name of a datum assembly.

[0146] In a possible implementation, the process of visually differentiating the initial elements in the straight combination includes:

[0147] The starting part of the straight driving direction element, the initial element used to construct the straight combination, is used as the display reference line and based on the lane display principle, the initial element used to construct the straight combination is adjusted in a symmetrical lane line to obtain the driving direction icon elements in the straight combination: the first straight driving direction element, the first left front driving direction element, the first right front driving direction element, the first left turn driving direction element, the first right turn driving direction element, the first left rear driving direction element, the first right rear driving direction element, the first left U-turn driving direction element and the first right U-turn driving direction element. The starting part of each driving direction element in the straight combination is located at the display center axis of the combination display area. See Figure 7a , Figure 7a The driving direction icon elements shown in the figure are obtained by visually differentiating the initial elements in the straight-ahead combination.

[0148] The process of visual differentiation of the initial elements in the left front assembly includes:

[0149] The starting part of the left front driving direction element, the initial element used to construct the left front combination, is used as the display reference line and based on the lane display principle, the initial element used to construct the left front combination is adjusted in a symmetrical form to obtain the driving direction icon elements in the left front combination: the second left front driving direction element, the second left U-turn driving direction element, the second left rear driving direction element and the second left turn driving direction element. The starting part of each driving direction element in the left front combination is located to the right of the display center axis of the combination display area. See Figure 7b , Figure 7b The driving direction icon element displayed in the figure is obtained by visually differentiating the initial element in the left front combination.

[0150] The process of visual differentiation of the initial elements in the right front assembly includes:

[0151] The starting part of the right front driving direction element, the initial element used to construct the right front combination, is used as the display reference line and based on the lane display principle, the initial element used to construct the right front combination is adjusted in a symmetrical form to obtain the driving direction icon elements in the right front combination: the second right front driving direction element, the second right U-turn driving direction element, the second right rear driving direction element and the second right turn driving direction element. The starting part of each driving direction element in the right front combination is located to the left of the display center axis of the combination display area. See Figure 7c , Figure 7c The driving direction icon element displayed in the figure is obtained by visually differentiating the initial element in the right front combination.

[0152] The process of visual differentiation of the initial elements in the left-turning assembly includes:

[0153] The starting part of the left-turn driving direction element, the initial element used to construct the left-turn combination, is used as the display baseline and based on the lane display principle, the initial element used to construct the left-turn combination is adjusted in a symmetrical form to obtain the driving direction icon elements in the left-turn combination: the third left-turn driving direction element, the third left U-turn driving direction element, and the third left rear driving direction element. The starting part of each driving direction element in the left-turn combination is located on the right side of the display center axis of the combination display area. See Figure 7d , Figure 7d The driving direction icon element shown in the figure is obtained by visually differentiating the initial element in the left turn combination.

[0154] The process of visual differentiation of the initial elements in the right-turn combination includes:

[0155] The starting part of the right-turn driving direction element, the initial element used to construct the right-turn combination, is used as the display reference line and based on the lane display principle, the initial element used to construct the right-turn combination is adjusted in a symmetrical form to obtain the driving direction icon elements in the right-turn combination: the third right-turn driving direction element, the third right U-turn driving direction element, and the third right rear driving direction element. The starting part of each driving direction element in the right-turn combination is located on the left side of the display center axis of the combination display area. See Figure 7e , Figure 7e The driving direction icon element shown in the figure is obtained by visually differentiating the initial element in the right turn combination.

[0156] The process of visual differentiation of the initial elements in the left U-turn assembly includes:

[0157] The starting part of the left U-turn driving direction element, the initial element used to construct the left U-turn combination, is used as the display baseline and based on the lane display principle, the initial element used to construct the left U-turn combination is adjusted in a symmetrical form to obtain the driving direction icon elements in the left U-turn combination: the fourth left U-turn driving direction element and the fourth left rear driving direction element. The starting part of each driving direction element in the left U-turn combination is located on the right side of the display center axis of the combination display area. See Figure 7f , Figure 7f The driving direction icon element shown in the figure is obtained by visually differentiating the initial element in the left turn combination.

[0158] The process of visual differentiation of the initial elements in the right U-turn assembly includes:

[0159] The starting part of the right U-turn driving direction element, the initial element used to construct the right U-turn combination, is used as the display reference line and based on the lane display principle, the initial element used to construct the right U-turn combination is adjusted in a symmetrical form to obtain the driving direction icon elements in the right U-turn combination: the fourth right U-turn driving direction element and the fourth right rear driving direction element. The starting part of each driving direction element in the right U-turn combination is located on the left side of the display center axis of the combination display area. See Figure 7g , Figure 7g The driving direction icon element shown in the figure is obtained by visually differentiating the initial element in the right turn combination.

[0160] The left rear assembly contains only one initial element, so the left rear assembly is displayed with the starting part of the left rear driving direction element as the display reference line. Figure 7h , Figure 7h The figure shows the driving direction icon element in the left rear assembly. Similarly, the right rear assembly contains only one initial element, so the right rear assembly is displayed with the starting part of the right rear driving direction element as the display reference line. Figure 7i , Figure 7i Shown in FIG. 1 is a driving direction icon element in the right rear assembly.

[0161] The process of visually differentiating the initial elements in the left front and right front combination includes:

[0162] The initial element used to construct the left-front and right-front combination - the starting part of the left-front driving direction element or the starting part of the left-front driving direction element is used as the display reference line and based on the lane display principle, the initial element used to construct the left-front and right-front combination is adjusted in a symmetrical lane line to obtain the driving direction icon elements in the left-front and right-front combination: the third left-front driving direction element, the third right-front driving direction element, the sixth left-rear driving direction element, the sixth right-rear driving direction element, the fourth left-turn driving direction element and the fourth right-turn driving direction element. The starting part of each driving direction element in the left-front and right-front combination is located at the display center axis of the combined display area. See Figure 7j , Figure 7j The driving direction icon elements displayed in the figure are obtained by visually differentiating the initial elements in the left front and right front combination.

[0163] The process of visually differentiating the initial elements in the left-turn and right-turn combination includes:

[0164] The initial element used to construct the left turn and right U-turn combination - the starting part of the left turn driving direction element or the starting part of the right U-turn driving direction element is used as the display baseline and based on the lane display principle, the initial element used to construct the left turn and right U-turn combination is adjusted in a symmetrical form to obtain the driving direction icon elements in the left turn and right U-turn combination: the fifth left turn driving direction element and the fifth right U-turn driving direction element. The starting part of each driving direction element in the left turn and right U-turn combination is located to the right of the display center axis of the combined display area. See Figure 7k , Figure 7k The driving direction icon element shown in the figure is obtained by visually differentiating the initial element in the left turn and right turn combination.

[0165] The process of visually differentiating the initial elements in the left-turn and right-turn combination includes:

[0166] The initial element used to construct the left-turn and right-turn combination - the starting part of the left-turn driving direction element or the starting part of the right-turn driving direction element is used as the display reference line and based on the lane display principle, the initial element used to construct the left-turn and right-turn combination is adjusted in a symmetrical form to obtain the driving direction icon elements in the left-turn and right-turn combination: the sixth left-turn driving direction element and the fifth right-turn driving direction element. The starting part of each driving direction element in the left-turn and right-turn combination is located at the display center axis of the combination display area. See Figure 7L , Figure 7L The driving direction icon elements shown in the figure are visually differentiated from the initial elements in the left turn and right turn combination.

[0167] S404: extracting the driving direction icon element corresponding to the reference drivable direction and the driving direction icon element corresponding to the non-reference drivable direction from the target combination, and combining them to obtain the driving direction icon combination of the drivable lane.

[0168] The driving direction icon elements corresponding to the reference drivable direction and the driving direction icon elements corresponding to the non-reference drivable direction are extracted from the target combination, and then they are combined to finally obtain the driving direction icon combination of the drivable lane.

[0169] See also Figure 8 , Figure 8 A flowchart of a combination implementation method of a driving direction icon combination provided in an embodiment of the present application can be implemented through steps B1-B3:

[0170] B1: adding the reference drivable direction to the first foreground layer, and adding the non-reference drivable direction to the second foreground layer.

[0171] By using the foreground layer as a tool for element positioning, when displaying the driving direction icon combination, the base drivable direction and non-base drivable direction are added to different layers respectively, the base drivable direction is added to the first foreground layer, and the non-base drivable direction is added to the second foreground layer. Using the concept of foreground layers, base and non-base directions can be flexibly combined in different foreground layers, and the reasonable superposition effect of elements between the two foreground layers can be displayed by adjusting properties such as transparency and color. This processing method creates a more diverse visual hierarchy and sense of depth, allowing users to more clearly distinguish the importance and priority of each direction, thereby improving the presentation of navigation information and providing users with more interactive and intuitive driving guidance.

[0172] In addition, if there are multiple non-baseline drivable directions, these multiple non-baseline drivable directions are usually added to multiple second foreground layers. Each base drivable direction corresponds to an independent foreground layer, so as to effectively distinguish and manage the display of each non-baseline direction. There are at most two base drivable directions, and these two base drivable directions are also added to the two first foreground layers. Each base drivable direction also corresponds to an independent foreground layer.

[0173] B2: Obtain the background layer of the driving direction icon combination.

[0174] The background layer of the driving direction icon combination is obtained to provide underlying support during display. The background layer has different colors from the first foreground layer and the second foreground layer. This difference ensures that the driving direction icon combination has a clear layering effect in visual presentation. The background layer, as the underlying image, provides a solid foundation for the main information of the foreground layer. At the same time, the color contrast makes the reference and non-reference directions in the foreground layer more prominent and easy to identify, thereby enhancing the user's perception and understanding of the lane indication information.

[0175] B3: Determine a layer combination mode, and perform layer combination on the first foreground layer, the second foreground layer, and the background layer based on the layer combination mode to obtain the driving direction icon combination.

[0176] The purpose of determining the layer combination mode is to effectively integrate the contents of different layers. Based on the selected layer combination mode, the first foreground layer, the second foreground layer and the background layer are combined to finally form a driving direction icon combination. By carefully selecting and applying the appropriate layer combination mode, the overlay effect and visual performance between the layers can be ensured to be optimal, so that the driving direction icon combination presents a clear and vivid visual effect while maintaining information accuracy and readability.

[0177] It should be noted that, in the process of combining to obtain the driving direction icon combination, the starting parts of the driving direction elements in different foreground layers overlap with each other.

[0178] In a possible implementation, the layer combination modes include but are not limited to the following:

[0179] Normal mode: This is the most basic synthesis mode, which directly covers the foreground layer on the background layer and superimposes it according to its pixel value. In this mode, the foreground layer completely covers the background layer, and the color and transparency do not change;

[0180] Overlay mode: Overlay mode emphasizes the contrast and color saturation between the pixel values ​​of the foreground layer and the background layer. In this mode, the color of the foreground layer will be superimposed on the background layer, producing a more vivid and layered effect, which is very useful for enhancing the details and texture of the image;

[0181] Opacity mode: The transparency mode allows partial transparency between layers. In this mode, you can control the degree of blending between layers by adjusting the transparency of the layers, so that the background layer can be seen through the foreground layer, thus creating a softer visual effect;

[0182] Screen mode: Screen mode is suitable for processing image overlays with higher brightness. In this mode, the color of the foreground layer is applied to the background layer while retaining the brightness of the background. This can produce a soft light and shadow effect, which is often used to create light effects or color overlays.

[0183] In one possible implementation, when displaying recommended lanes, the foreground layer corresponding to the reference drivable direction or non-reference drivable direction of the recommended lane can be placed on the top layer and rendered in shaded form to highlight the lane information. In this way, the driver can clearly see the recommended driving path, facilitating accurate and timely driving decisions. Shaded rendering can mark the recommended lanes with bright colors or high contrast, improving visibility and user experience, and helping to reduce the possibility of confusion and mis-navigation during driving.

[0184] Using a combination of multiple foreground and background layers, the visual presentation of the driving direction icon is optimized through different layer combination modes (such as normal mode, overlay mode, transparency mode, and screen mode). This method can enhance the visual hierarchy and depth, allowing users to more clearly distinguish the importance and priority of different directions, and improve the presentation of navigation information. In addition, through shading rendering and layer topping, the recommended lanes are effectively highlighted, which improves the user's visibility and experience and reduces the risk of confusion and incorrect navigation that may occur during driving.

[0185] S405: If the drivable lane includes a recommended driving direction for the target vehicle, then in the displayed driving direction icon combination, the display effect of the driving direction icon element corresponding to the recommended driving direction is enhanced; if the drivable lane does not include a recommended driving direction for the target vehicle, then the driving direction icon combination is directly displayed.

[0186] In the navigation system, when it is detected that the drivable lane contains a recommended driving direction for the target vehicle, the navigation system will especially emphasize the icon elements related to the recommended driving direction in the displayed driving direction icon combination to enhance its visual display effect. This enhancement can be achieved by increasing the brightness and saturation of the icon or by other visual means to highlight the recommended direction, helping the driver to identify the recommended driving path more quickly and clearly. On the contrary, if there is no indication of the recommended driving direction in the drivable lane, the system will directly display the overall driving direction icon combination to ensure that the driver can accurately understand the current optional driving direction and support them in making timely driving decisions. The effect diagram is as follows Fig. 9 As shown, Fig. 9 A scenario of a two-way 12-lane road is shown, and the effect of applying the method of the application to display the recommended road for the target vehicle is demonstrated. Fig. 9 The highlighted driving direction in the left front driving direction is the recommended road, and Fig. 9 The blue background color in the figure is the color of the background layer, and the colors of the first foreground layer and the second foreground layer are gray. Fig. 9 The number above the driving direction icon combination is the number of the drivable lane. In such a scenario, the recommended road is highlighted to highlight the recommended road that the target vehicle needs to travel, to help the driver understand the navigation guidance more clearly. In this way, the driver can more easily make the correct lane selection and follow the recommended path, thereby improving the driving experience and safety. This visualization effect helps to simplify navigation information in complex traffic environments, making the navigation process of the target vehicle more intuitive.

[0187] Based on the description of S401-S405, the embodiment of the present application first determines all feasible roads that the target vehicle can travel and their respective directions, and then selects the benchmark and non-benchmark drivable directions according to the number and priority of drivable directions for each road. By selecting the target combination corresponding to the benchmark drivable direction in the predefined benchmark combination, the corresponding driving direction icon elements are extracted to form the final combination, the display effect of the recommended driving direction is enhanced, and the overlapping and confusion of elements are effectively avoided. Different from the traditional exhaustive method, this method determines the direction icon combination based on rules, reduces the calculation complexity, improves the calculation efficiency, and at the same time enhances the display effect in the recommended driving direction through special markings or color deepening, further improving the recognizability of the recommended route.

[0188] Based on the method for displaying a driving direction icon provided by the above method embodiment, the embodiment of the present application also provides a device for displaying a driving direction icon, which will be described below in conjunction with the accompanying drawings.

[0189] See also Fig.10 As shown, Fig.10 A schematic diagram of a display device for a driving direction icon provided in an embodiment of the present application. Fig.10 As shown, the display device of the driving direction icon includes:

[0190] The first determining unit 1001 is used to determine a drivable lane of the target vehicle and a drivable direction included in the drivable lane;

[0191] A second determining unit 1002 is used to determine a reference drivable direction and a non-reference drivable direction of the drivable lane according to the number of drivable directions included in the drivable lane and the priority of the drivable directions;

[0192] The third determining unit 1003 is used to determine a target assembly corresponding to the drivable lane from a plurality of reference assemblies according to the reference drivable direction; the reference assembly includes one or more driving direction icon elements with identification characteristics;

[0193] An extraction and combination unit 1004 is used to extract the driving direction icon element corresponding to the reference drivable direction and the driving direction icon element corresponding to the non-reference drivable direction from the target combination, and combine them to obtain the driving direction icon combination of the drivable lane;

[0194] The first display unit 1005 is configured to enhance the display effect of the driving direction icon element corresponding to the recommended driving direction in the displayed driving direction icon combination if the drivable lane includes a recommended driving direction for the target vehicle;

[0195] The second display unit 1006 is used to directly display the driving direction icon combination if the drivable lane does not include a recommended driving direction for the target vehicle.

[0196] In a possible implementation manner, the second determining unit 1002 specifically includes:

[0197] a fourth determining unit, for determining, if the number of drivable directions included in the drivable lane is equal to 1, the only drivable direction included in the drivable lane as the reference drivable direction;

[0198] The query determination unit is used to query the priority of each of the drivable directions if the number of drivable directions included in the drivable lane is greater than 1, and determine the drivable direction with the highest priority as the reference drivable direction, and determine the drivable direction with a lower priority than the reference drivable direction as the non-reference drivable direction.

[0199] In a possible implementation manner, the device further includes:

[0200] A fifth determining unit, configured to determine a predefined initial element for constructing the reference assembly based on traffic rules;

[0201] A setting unit, for using the only initial element used to construct the reference assembly as the driving direction icon element of the reference assembly if the number of initial elements used to construct the reference assembly is equal to 1;

[0202] The first visual differentiation processing unit is used to perform visual differentiation processing on the initial elements used to construct the benchmark assembly based on the lane display principle if the number of initial elements used to construct the benchmark assembly is greater than 1, so as to obtain the driving direction icon element of the benchmark assembly.

[0203] In a possible implementation manner, the first visual difference processing unit specifically includes:

[0204] A sixth determining unit, when the number of initial elements used to construct the reference assembly is greater than 1, is used to determine the initial elements used to construct the reference assembly with the highest priority of the driving direction as the reference element, and to determine the remaining initial elements used to construct the reference assembly as non-reference elements; the reference element and the non-reference element both include a direction indicating portion and a starting portion; the end of the direction indicating portion is connected to the head end of the starting portion;

[0205] The second visual differentiation processing unit is used to use the starting part of the reference element as a reference line and based on the lane display principle, perform the visual differentiation processing on the starting part of the non-reference element to obtain the driving direction icon element of the reference combination.

[0206] In a possible implementation, the plurality of reference combinations include a straight-ahead combination, a left front combination, a right front combination, a left turn combination, a right turn combination, a left U-turn combination, a right U-turn combination, a left rear combination, a right rear combination, a left front and right front combination, a left turn and right U-turn combination, and a left turn and right turn combination;

[0207] The initial elements used to construct the straight-moving combination include a straight-moving direction element, a left front driving direction element, a right front driving direction element, a left turn driving direction element, a right turn driving direction element, a left rear driving direction element, a right rear driving direction element, a left U-turn driving direction element, and a right U-turn driving direction element;

[0208] The initial elements used to construct the left front assembly include a left front driving direction element, a left U-turn driving direction element, a left rear driving direction element, and a left turn driving direction element;

[0209] The initial elements used to construct the right front assembly include a right front driving direction element, a right U-turn driving direction element, a right rear driving direction element, and a right turn driving direction element;

[0210] The initial elements used to construct the left-turn combination include a left-turn driving direction element, a left U-turn driving direction element, and a left rear driving direction element;

[0211] The initial elements used to construct the right-turn combination include a right-turn driving direction element, a right U-turn driving direction element, and a right rear driving direction element;

[0212] The initial elements used to construct the left U-turn assembly include a left U-turn driving direction element and a left rear driving direction element;

[0213] The initial elements used to construct the right U-turn assembly include a right U-turn driving direction element and a right rear driving direction element;

[0214] The initial elements used to construct the left rear assembly include a left rear driving direction element;

[0215] The initial elements used to construct the right rear assembly include a right rear driving direction element;

[0216] The initial elements used to construct the left-front and right-front combination include a left-front driving direction element, a right-front driving direction element, a right-rear driving direction element, a left-rear driving direction element, a left-turn driving direction element, and a right-turn driving direction element;

[0217] The initial elements used to construct the left-turn and right-turn combination include a left-turn driving direction element and a right-turn driving direction element;

[0218] The initial elements used to construct the left-turn and right-turn combination include a left-turn driving direction element and a right-turn driving direction element.

[0219] In a possible implementation manner, the device further includes:

[0220] an adding unit, configured to add the reference drivable direction to a first foreground layer, and add the non-reference drivable direction to a second foreground layer;

[0221] An acquisition unit is used to acquire a background layer of the driving direction icon combination; the background layer is an underlying image used when the driving direction icon combination is displayed; the background layer has a different color from the first foreground layer and the second foreground layer;

[0222] The layer combination unit is used to determine a layer combination mode, and to combine the first foreground layer, the second foreground layer and the background layer based on the layer combination mode to obtain the driving direction icon combination.

[0223] In addition, an embodiment of the present application further provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a terminal device, the terminal device executes the method for displaying a driving direction icon as described above.

[0224] In addition, an embodiment of the present application further provides a processor for running a computer program, and when the program is running, the method for displaying a driving direction icon as described above is executed.

[0225] The embodiment of the present application analyzes the current driving direction of each road for all roads on which the target vehicle can travel. Based on the number of driving directions of each road and its priority, the baseline and non-baseline drivable directions of the road are determined. Subsequently, according to the predefined baseline combinations, target combinations corresponding to the baseline drivable directions are selected, and these combinations contain driving direction icon elements with specific identification features. Then, the driving direction icon elements of the baseline and non-baseline directions are extracted and combined from the target combinations to form a final drivable direction icon combination. If a road recommends a specific driving direction, the relevant icon elements are highlighted by visual enhancement means such as special markings or color deepening to improve the recognition of the recommended route. Compared with the traditional exhaustive method, this method is based on rules and priorities, avoids exhaustive enumeration of each possibility, and thus significantly improves the computational efficiency and the clarity of the icon combination.

[0226] It should be noted that each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely schematic, in which the unit described as a separate component may or may not be physically separated, and the component prompted as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

[0227] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for displaying a driving direction icon, characterized in that: The method comprises: Determine a drivable lane for the target vehicle and a drivable direction included in the drivable lane; Determining a reference drivable direction and a non-reference drivable direction of the drivable lane according to the number of drivable directions included in the drivable lane and the priority of the drivable directions; According to the reference drivable direction, a target assembly corresponding to the drivable lane is determined from a plurality of reference assemblies; the reference assembly includes one or more driving direction icon elements with identification characteristics; Extracting the driving direction icon element corresponding to the reference drivable direction and the driving direction icon element corresponding to the non-reference drivable direction from the target combination, and combining them to obtain the driving direction icon combination of the drivable lane; If the drivable lane includes a recommended driving direction for the target vehicle, the display effect of the driving direction icon element corresponding to the recommended driving direction is enhanced in the displayed driving direction icon combination; if the drivable lane does not include a recommended driving direction for the target vehicle, the driving direction icon combination is directly displayed.

2. The method according to claim 1, characterized in that The determining, according to the number of drivable directions included in the drivable lane and the priority of the drivable directions, a reference drivable direction and a non-reference drivable direction of the drivable lane comprises: If the number of drivable directions included in the drivable lane is equal to 1, determining that the only drivable direction included in the drivable lane is the reference drivable direction; If the number of drivable directions included in the drivable lane is greater than 1, the priority of each drivable direction is queried, and the drivable direction with the highest priority is determined as the benchmark drivable direction, and the drivable direction with a lower priority than the benchmark drivable direction is determined as the non-baseline drivable direction.

3. The method according to claim 1, characterized in that The method further comprises: Determining predefined initial elements for constructing the reference assembly based on traffic rules; If the number of initial elements used to construct the reference assembly is equal to 1, the only initial element used to construct the reference assembly is used as the driving direction icon element of the reference assembly; If the number of initial elements used to construct the reference assembly is greater than 1, the initial elements used to construct the reference assembly are visually differentiated based on the lane display principle to obtain the driving direction icon element of the reference assembly.

4. The method according to claim 3, characterized in that: The initial elements used to construct the reference assembly are subjected to visual differentiation processing based on the lane display principle to obtain the driving direction icon element of the reference assembly, including: When the number of initial elements used to construct the reference assembly is greater than 1, the initial elements used to construct the reference assembly with the highest priority in the driving direction are determined as reference elements, and the remaining initial elements used to construct the reference assembly are determined as non-reference elements; the reference element and the non-reference element both include a direction indicating portion and a starting portion; the end of the direction indicating portion is connected to the head end of the starting portion; The starting part of the reference element is used as a reference line and based on the lane display principle, the starting part of the non-reference element is subjected to the visual differentiation processing to obtain the driving direction icon element of the reference combination.

5. The method according to claim 3, characterized in that: The multiple reference combinations include a straight-ahead combination, a left front combination, a right front combination, a left turn combination, a right turn combination, a left U-turn combination, a right U-turn combination, a left rear combination, a right rear combination, a left front and right front combination, a left turn and right U-turn combination, and a left turn and right turn combination; The initial elements used to construct the straight-moving combination include a straight-moving direction element, a left front driving direction element, a right front driving direction element, a left turn driving direction element, a right turn driving direction element, a left rear driving direction element, a right rear driving direction element, a left U-turn driving direction element, and a right U-turn driving direction element; The initial elements used to construct the left front assembly include a left front driving direction element, a left U-turn driving direction element, a left rear driving direction element, and a left turn driving direction element; The initial elements used to construct the right front assembly include a right front driving direction element, a right U-turn driving direction element, a right rear driving direction element, and a right turn driving direction element; The initial elements used to construct the left-turn combination include a left-turn driving direction element, a left U-turn driving direction element, and a left rear driving direction element; The initial elements used to construct the right-turn combination include a right-turn driving direction element, a right U-turn driving direction element, and a right rear driving direction element; The initial elements used to construct the left U-turn assembly include a left U-turn driving direction element and a left rear driving direction element; The initial elements used to construct the right U-turn assembly include a right U-turn driving direction element and a right rear driving direction element; The initial elements used to construct the left rear assembly include a left rear driving direction element; The initial elements used to construct the right rear assembly include a right rear driving direction element; The initial elements used to construct the left-front and right-front combination include a left-front driving direction element, a right-front driving direction element, a right-rear driving direction element, a left-rear driving direction element, a left-turn driving direction element, and a right-turn driving direction element; The initial elements used to construct the left-turn and right-turn combination include a left-turn driving direction element and a right-turn driving direction element; The initial elements used to construct the left-turn and right-turn combination include a left-turn driving direction element and a right-turn driving direction element.

6. The method according to claim 1, characterized in that The combination process of the driving direction icon combination includes: Adding the reference drivable direction to a first foreground layer, and adding the non-reference drivable direction to a second foreground layer; Acquire a background layer of the driving direction icon combination; the background layer is an underlying image used when the driving direction icon combination is displayed; the background layer has a different color from the first foreground layer and the second foreground layer; A layer combination mode is determined, and based on the layer combination mode, the first foreground layer, the second foreground layer, and the background layer are layer-combined to obtain the driving direction icon combination.

7. A display device for a driving direction icon, characterized in that: The device comprises: A first determination unit, used to determine a drivable lane of the target vehicle and a drivable direction included in the drivable lane; A second determining unit is used to determine a reference drivable direction and a non-reference drivable direction of the drivable lane according to the number of drivable directions included in the drivable lane and the priority of the drivable directions; A third determining unit is used to determine a target assembly corresponding to the drivable lane from a plurality of reference assemblies according to the reference drivable direction; the reference assembly includes one or more driving direction icon elements with identification characteristics; an extraction and combination unit, configured to extract the driving direction icon element corresponding to the reference drivable direction and the driving direction icon element corresponding to the non-reference drivable direction from the target combination, and combine them to obtain a driving direction icon combination of the drivable lane; a first display unit, for enhancing the display effect of a driving direction icon element corresponding to the recommended driving direction in the displayed driving direction icon combination if the drivable lane includes a recommended driving direction for the target vehicle; The second display unit is used to directly display the driving direction icon combination if the drivable lane does not include a recommended driving direction for the target vehicle.

8. The device according to claim 7, characterized in that The second determining unit specifically includes: a fourth determining unit, for determining, if the number of drivable directions included in the drivable lane is equal to 1, the only drivable direction included in the drivable lane as the reference drivable direction; The query determination unit is used to query the priority of each of the drivable directions if the number of drivable directions included in the drivable lane is greater than 1, and determine the drivable direction with the highest priority as the reference drivable direction, and determine the drivable direction with a lower priority than the reference drivable direction as the non-reference drivable direction.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device executes the method for displaying a driving direction icon as described in any one of claims 1 to 6.

10. A processor, characterized in that: Used to run a computer program, which, when running, executes the method for displaying a driving direction icon as described in any one of claims 1 to 6.

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