Navigation screen display method, device, storage medium and computer program product

Abstract

The present application relates to a navigation screen display method, device, computer equipment, storage medium and computer program product. The method comprises: displaying a navigation screen for a navigation object, wherein the navigation screen is a three-dimensional screen projected on a three-dimensional electronic map according to the field of view of the navigation viewpoint corresponding to the navigation object; when the distance between the navigation object and the entrance of the shielded section meets the distance condition, the navigation screen with a gradually narrowing field of view is displayed as the height of the navigation viewpoint decreases; when the navigation object enters the shielded section, the navigation screen projected from the inside of the virtual shielded space is displayed as the navigation viewpoint moves in the virtual shielded space corresponding to the shielded section. It is more in line with the real visual scene and helps to improve safety during driving. The applicable scenarios of the present application include but are not limited to maps, navigation, autonomous driving, smart transportation, vehicle-road collaboration and other scenarios.

Description

Technical Field

[0001] The present application relates to the field of computer technology, and in particular to a navigation screen display method, apparatus, computer equipment, storage medium and computer program product. Background Art

[0002] With the development of navigation technology, online navigation functions are now widely used. For example, online car-hailing applications, navigation applications, map applications, etc. all need to provide vehicle driving navigation functions.

[0003] In the related art, the terminal displays a map within a certain range around the user through a navigation interface, and controls the update of the navigation screen according to the position change of the vehicle.

[0004] However, in the display method of the navigation screen in the related art, when the vehicle enters a tunnel or other obstructed road, the camera is kept above the top of the tunnel, and the tunnel is processed semi-transparently so that the camera can clearly capture the driving status of the vehicle. However, the navigation screen obtained by the above processing cannot display the visual scene in the tunnel during the tunnel driving process, and relies on the user's judgment of the scene, which affects driving safety. Summary of the invention

[0005] Based on this, it is necessary to provide a navigation screen display method, device, computer equipment, computer-readable storage medium and computer program product that can display the real visual scene on the obstructed road and ensure driving safety in response to the above technical problems.

[0006] In a first aspect, the present application provides a navigation screen display method. The method comprises:

[0007] Displaying a navigation picture for the navigation object, the navigation picture being a three-dimensional picture projected on a three-dimensional electronic map according to the field of view of the navigation viewpoint corresponding to the navigation object;

[0008] When the distance between the navigation object and the entrance of the blocked road section meets the distance condition, a navigation screen with a gradually narrowing field of view is displayed as the height of the navigation viewpoint decreases;

[0009] When the navigation object enters the shielded section, the navigation viewpoint moves in the virtual shielded space corresponding to the shielded section, and a navigation picture projected from inside the virtual shielded space is displayed.

[0010] In a second aspect, the present application further provides a navigation screen display device, the device comprising:

[0011] A first display module is used to display a navigation picture for a navigation object, wherein the navigation object corresponds to a navigation viewpoint, and the navigation picture is an immersive picture obtained by projecting a field of view corresponding to the navigation viewpoint on a three-dimensional electronic map;

[0012] A second display module is used to display a navigation screen with a zoomed view when the distance between the navigation object and the blocked road section meets the distance condition, wherein the zoom ratio of the view is positively correlated with the change in the viewpoint height of the navigation viewpoint, and the change in the viewpoint height matches the blocking height of the blocked road section;

[0013] The third display module is used to display a navigation picture with a changing field of view angle when the navigation object is in the shielded road section, and the field of view angle is positively correlated with the pitch angle of the navigation viewpoint.

[0014] In a third aspect, the present application further provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0015] Displaying a navigation picture for the navigation object, the navigation picture being a three-dimensional picture projected on a three-dimensional electronic map according to the field of view of the navigation viewpoint corresponding to the navigation object;

[0016] When the distance between the navigation object and the entrance of the blocked road section meets the distance condition, a navigation screen with a gradually narrowing field of view is displayed as the height of the navigation viewpoint decreases;

[0017] When the navigation object enters the shielded section, the navigation viewpoint moves in the virtual shielded space corresponding to the shielded section, and a navigation picture projected from inside the virtual shielded space is displayed.

[0018] In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0019] Displaying a navigation picture for the navigation object, the navigation picture being a three-dimensional picture projected on a three-dimensional electronic map according to the field of view of the navigation viewpoint corresponding to the navigation object;

[0020] When the distance between the navigation object and the entrance of the blocked road section meets the distance condition, a navigation screen with a gradually narrowing field of view is displayed as the height of the navigation viewpoint decreases;

[0021] When the navigation object enters the shielded section, the navigation viewpoint moves in the virtual shielded space corresponding to the shielded section, and a navigation picture projected from inside the virtual shielded space is displayed.

[0022] In a fifth aspect, the present application further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0023] Displaying a navigation picture for the navigation object, the navigation picture being a three-dimensional picture projected on a three-dimensional electronic map according to the field of view of the navigation viewpoint corresponding to the navigation object;

[0024] When the distance between the navigation object and the entrance of the blocked road section meets the distance condition, a navigation screen with a gradually narrowing field of view is displayed as the height of the navigation viewpoint decreases;

[0025] When the navigation object enters the shielded section, the navigation viewpoint moves in the virtual shielded space corresponding to the shielded section, and a navigation picture projected from inside the virtual shielded space is displayed.

[0026] The above-mentioned navigation screen display method, device, computer equipment, storage medium and computer program product, when the distance between the navigation object and the obstructed road section meets the distance condition, follows the decrease in the height of the navigation viewpoint to display a navigation screen with a gradually narrowing field of view; when the navigation object enters the obstructed road section, follows the movement of the navigation viewpoint in the virtual obstructed space corresponding to the obstructed road section to display the navigation screen projected from the inside of the virtual obstructed space, and performs a three-dimensional simulation of the scene corresponding to the navigation screen of the navigation object traveling in the obstructed road section. The navigation screen projected from the inside of the virtual obstructed space can bring an immersive navigation screen experience to the user, and the navigation screen is more in line with the real visual scene, which helps to improve safety during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A diagram showing an application environment of a navigation screen display method in an embodiment;

[0028] Figure 2 It is a flowchart of a method for displaying a navigation screen in one embodiment;

[0029] Figure 3 A schematic diagram of a page before the navigation screen is zoomed in an embodiment;

[0030] Figure 4 A schematic diagram of a page after a navigation screen is zoomed in an embodiment;

[0031] Figure 5 A schematic diagram of a page of a short-distance navigation screen in an embodiment;

[0032] Figure 6 A schematic diagram of a page of a long-distance navigation screen in one embodiment;

[0033] Figure 7 A schematic diagram of changes in the height and pitch angle of the navigation viewing angle in one embodiment;

[0034] Figure 8 is a flowchart of a navigation screen display method in another embodiment;

[0035] Fig. 9 is a flowchart of a navigation screen display method in yet another embodiment;

[0036] Fig.10 is a structural block diagram of a navigation screen display device in one embodiment;

[0037] Fig.11 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] The navigation screen display method provided in the embodiment of the present application can be applied to Figure 1In the application environment shown. Among them, the terminal 102 communicates with the server 104 through the network. The data storage system can store the electronic map that the server 104 needs to process. The data storage system can be integrated on the server 104, or it can be placed on the cloud or other network servers. The terminal 102 is used to display a navigation screen for a navigation object such as a moving vehicle. Specifically, in the terminal 102, a navigation screen for the navigation object is displayed, and the navigation object corresponds to the navigation viewpoint. The navigation screen is an immersive screen obtained by projecting the field of view corresponding to the navigation viewpoint on the three-dimensional electronic map. When the terminal 102 or the server 104 detects that the distance between the navigation object and the shielded section meets the distance condition, in the terminal 102, when the distance between the navigation object and the entrance of the shielded section meets the distance condition, the height of the navigation viewpoint is reduced, and the navigation screen with a gradually narrowing field of view is displayed; when the terminal 102 or the server 104 detects that the navigation object enters the shielded section, the navigation viewpoint moves in the virtual shielded space corresponding to the shielded section, and the navigation screen projected from the inside of the virtual shielded space is displayed in the terminal 102. The terminal 102 may be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, IoT devices, and portable wearable devices. The IoT devices may be navigation devices, smart vehicle-mounted devices, etc. The portable wearable devices may be smart watches, smart bracelets, head-mounted devices, etc. The server 104 may be implemented as an independent server or a server cluster consisting of multiple servers.

[0040] In one embodiment, Figure 2 As shown, a navigation screen display method is provided, and the method is applied to Figure 1 The terminal in is used as an example to illustrate, including the following steps:

[0041] Step 202 : Displaying a navigation picture for the navigation object. The navigation picture is a three-dimensional picture obtained by projecting the field of view of the navigation viewpoint corresponding to the navigation object onto the three-dimensional electronic map.

[0042] The navigation object is the object being navigated, such as a user who enables the navigation function and a vehicle driven by the user, etc. The terminal determines its own position as the location of the navigation object. For example, when a user navigates through a mobile phone while driving, the location of the mobile phone is the location of the navigation object. For another example, when a user navigates through a car navigation device, the location of the vehicle is the location of the navigation object.

[0043] The navigation screen refers to a local three-dimensional map displayed in the navigation interface of the terminal, wherein the local three-dimensional map is a three-dimensional map. In response to the operation of enabling the navigation function, the terminal obtains the current location information and displays the navigation interface based on the current location information. The navigation interface may include a local three-dimensional map projected in a three-dimensional electronic map according to the navigation viewpoint and an object identifier of a navigation object, and the position of the object identifier in the electronic map can reflect the geographical location of the navigation object.

[0044] The navigation viewpoint is the reference position when the electronic map is projected. The parameters of the navigation viewpoint include the viewpoint height and the pitch angle. The higher the viewpoint height, the larger the field of view corresponding to the navigation viewpoint. The lower the viewpoint height, the smaller the field of view corresponding to the navigation viewpoint. The larger the pitch angle, the farther the viewing distance corresponding to the navigation viewpoint. The smaller the pitch angle, the closer the viewing distance corresponding to the navigation viewpoint. Specifically, the navigation viewpoint can be the shooting viewpoint of the virtual camera required for navigating the navigation object. The terminal controls the virtual camera to shoot from behind the location of the navigation object according to a certain viewpoint height and pitch angle based on the three-dimensional map generated by three-dimensional modeling, so as to display the local three-dimensional map obtained by shooting by the virtual camera on the navigation interface, providing the user with an immersive navigation screen experience. An immersive screen is a three-dimensional screen that provides an immersive experience for the user. The screen obtained by the terminal by projecting the three-dimensional electronic map according to the field of view corresponding to the navigation viewpoint is a three-dimensional stereoscopic screen. Through the immersive navigation screen, the user can feel a more realistic visual scene.

[0045] Specifically, the terminal responds to the operation of enabling the navigation function, obtains the current location information of the navigation object, and displays the navigation interface based on the current location information, in which an immersive picture navigation picture obtained by projecting the field of view corresponding to the navigation viewpoint of the navigation object on the three-dimensional electronic map is displayed. The navigation interface is as follows: Figure 3 As shown, the electronic map of the navigation interface also displays the logo of the navigation object, and the position of the logo in the electronic map can reflect the geographical location of the navigation object. The navigation interface can also display navigation route indication information, which is text information or graphic information, such as a guide line that takes the logo corresponding to the navigation object as the starting point and indicates the direction of travel.

[0046] In a specific application, the terminal determines the current position of the navigation object in response to the user's activation operation of the navigation application, and determines the position of the navigation viewpoint corresponding to the navigation object in the three-dimensional electronic map based on the current position of the navigation object. When the navigation is started, the viewpoint height of the navigation viewpoint corresponding to the navigation object is the initial viewpoint height, and the pitch angle of the navigation viewpoint is the initial pitch angle. When the road where the navigation object is located is a non-blocked road, in order to keep the navigation picture relatively uncertain, the terminal controls the virtual camera to project and shoot in the three-dimensional electronic map at a fixed height and a fixed top-down angle, and displays the projected picture in the navigation interface of the terminal.

[0047] Step 204: When the distance between the navigation object and the entrance of the obstructed road section meets the distance condition, the navigation viewpoint is lowered in height to display a navigation picture with a gradually narrowing field of view.

[0048] The blocked road section is a road section with a certain length and blocked at the top relative to a road section with a wide field of view. The blocked road section can be a semi-enclosed road section surrounded on both sides and at the top, such as a tunnel or corridor, or a road section with only the top blocked and wide fields of view on both sides, such as a road section under and parallel to an overpass. The length of the blocked road section is the distance between the entrance to the blocked road section and the exit from the blocked road section.

[0049] The distance between the navigation object and the obstructed section can be the distance between the navigation object and the entrance of the obstructed section, or the distance between the navigation object and the exit of the obstructed section. The distance condition can be that the change in the distance between the navigation object and the obstructed section conforms to a preset change trend and reaches a preset threshold range, and the change area includes the distance gradually decreasing or the distance gradually increasing. For example, the distance condition can be that the distance between the navigation object and the entrance of the obstructed section gradually decreases and is less than 500 meters, or that the distance between the navigation object and the exit of the obstructed section gradually decreases and is less than 10 meters, etc.

[0050] As the height of the navigation viewpoint changes, the field of view of the navigation screen will also be scaled accordingly. The scaling of the field of view is the result of the vertical movement of the navigation viewpoint. Since the ground is relatively fixed, the higher the navigation viewpoint, the larger the field of view, and the larger the proportion of the projected local three-dimensional map in the electronic map; the lower the navigation viewpoint, the smaller the field of view, and the smaller the proportion of the projected local three-dimensional map in the electronic map; when the navigation viewpoint moves from high to low, the field of view corresponding to the navigation viewpoint will shrink, that is, the proportion of the projected local three-dimensional map in the electronic map will decrease; when the navigation viewpoint moves from low to high, the field of view corresponding to the navigation viewpoint will expand, that is, the proportion of the projected local three-dimensional map in the electronic map will increase.

[0051] The scaling of the field of view can be determined by the field of view scaling ratio. The field of view scaling ratio is the ratio of the proportion of the local three-dimensional map projected in the electronic map when the updated field of view is compared to the time when the field of view is not scaled after the viewpoint height of the navigation viewpoint changes compared to the original height. The field of view scaling ratio of the navigation viewpoint can be determined based on the height change of the viewpoint height of the navigation viewpoint compared to the original height. Specifically, the greater the change in the viewpoint height, the greater the field of view scaling ratio, and the smaller the change in the viewpoint height, the smaller the field of view scaling ratio.

[0052] The viewpoint height of the navigation viewpoint is the default initial viewpoint height when the navigation is started. The higher the blocking height of the blocked road section, the smaller the height change from the viewpoint height of the navigation viewpoint to the blocking height of the blocked road section will be. Correspondingly, the reduction in the field of view of the navigation viewpoint, that is, the field of view zoom ratio, will also be smaller.

[0053] Specifically, the terminal detects the distance between the navigation object and the obstructed road section in real time. When it is detected that the distance between the navigation object and the obstructed road section meets the distance condition, the terminal determines the change in the viewpoint height of the navigation viewpoint based on the matching of the obstruction height of the obstructed road section, and then determines the field of view zoom ratio of the navigation viewpoint based on the change in the viewpoint height of the navigation viewpoint, and displays the navigation picture projected on the electronic map after the field of view is zoomed according to the field of view zoom ratio of the navigation viewpoint. The displayed navigation picture can be directly switched based on the field of view zoom ratio corresponding to the maximum height change, or it can be projected by changing the field of view zoom ratio at a uniform speed.

[0054] Step 206 : When the navigation object enters the shielded section, following the movement of the navigation viewpoint in the virtual shielded space corresponding to the shielded section, a navigation picture projected from inside the virtual shielded space is displayed.

[0055] The virtual shielded space refers to the virtual space corresponding to the shielded road in the three-dimensional electronic map where the navigation object is located. When the navigation object enters the shielded road section, the navigation viewpoint corresponding to the navigation object will enter the virtual shielded space corresponding to the shielded road section, and the navigation viewpoint located in the virtual shielded space will move with the movement of the navigation object in the shielded road navigation.

[0056] The navigation picture projected from inside the virtual shielded space refers to a picture projected from a navigation viewpoint in the virtual shielded space.

[0057] Specifically, when the navigation object enters a shielded road section, the navigation viewpoint moves in the virtual shielded space corresponding to the shielded road section, and the terminal displays a navigation screen projected from inside the virtual shielded space. Based on the navigation screen projected from inside the virtual shielded space, the user can visually create a sense of immersion as if they are in the space corresponding to the shielded road section.

[0058] The above-mentioned navigation screen display method, when the distance between the navigation object and the obstructed road section meets the distance condition, follows the lowering of the height of the navigation viewpoint to display a navigation screen with a gradually narrowing field of view; when the navigation object enters the obstructed road section, follows the movement of the navigation viewpoint in the virtual obstructed space corresponding to the obstructed road section to display the navigation screen projected from the inside of the virtual obstructed space; a three-dimensional simulation is performed on the scene corresponding to the navigation screen of the navigation object traveling in the obstructed road section, and the navigation screen projected from the inside of the virtual obstructed space can bring an immersive navigation screen experience to the user. The navigation screen is more in line with the real visual scene, which helps to improve safety during driving.

[0059] In one embodiment, the navigation picture display method further includes: when the navigation object moves in the obstructed road section, following the change of the pitch angle of the navigation viewpoint, displaying the navigation picture with the changing viewing distance.

[0060] Among them, the pitch angle is used to characterize the projection direction and projection range of the navigation viewpoint. The pitch angle of the navigation viewpoint corresponds to the viewing angle range of the navigation viewpoint. The viewing angle is the abbreviation of the field of view angle, which refers to the angle range of the angle between the line of sight and the vertical direction of the navigation viewpoint. The line of sight will change with the change of the pitch angle of the navigation viewpoint. The increase of the pitch angle of the navigation viewpoint will cause the angle between the line of sight and the vertical direction of the navigation viewpoint to increase. Conversely, the decrease of the pitch angle of the navigation viewpoint will cause the angle between the line of sight and the vertical direction of the navigation viewpoint to decrease. The change of the field of view angle will cause the change of the line of sight length. The larger the field of view angle, the longer the line of sight length, and the smaller the field of view angle, the shorter the line of sight length.

[0061] In this embodiment, when the terminal detects that the navigation object is in an obstructed section, the projection result of the electronic map under a long-distance field of view is obtained by increasing the pitch angle of the navigation viewpoint, so that the user can see the electronic map and navigation route at a farther distance through the navigation interface, which is convenient for the user to grasp the approximate changes of a longer navigation route.

[0062] In one embodiment, when the navigation object is in a blocked section, the viewpoint height of the navigation viewpoint is kept unchanged, and the pitch angle of the navigation viewpoint is adjusted to display the variable distance navigation screen corresponding to the navigation viewpoint with the updated view angle.

[0063] Among them, keeping the viewpoint height of the navigation viewpoint unchanged and adjusting the pitch angle of the navigation viewpoint is a processing method that only changes the field of view angle of the navigation viewpoint without changing the field of view scaling ratio, such as Figure 5 and Figure 6 As shown, when the viewing angle becomes larger, the distance of the road ahead that can be seen in the navigation picture corresponding to the navigation viewpoint becomes longer, and when the viewing angle becomes smaller, the distance of the road ahead that can be seen in the navigation picture corresponding to the navigation viewpoint becomes shorter.

[0064] In this embodiment, when the navigation object is in an obstructed road section, the processing method of only changing the field of view angle of the navigation viewpoint without changing the field of view zoom ratio is adopted. By displaying the variable-distance navigation screen, the user can see the road conditions farther away through the navigation screen, which is convenient for the user to grasp the approximate changes of a longer navigation route. It can also reduce or even avoid the dizziness caused to the user by the simultaneous changes in field of view zoom and field of view angle, thereby improving safety during driving.

[0065] In one embodiment, the obstructed road section includes a first section near an entrance end of the obstructed road section and a second section near an exit end of the obstructed road section; when the navigation object moves in the obstructed road section, a navigation screen showing a change in the sight distance is displayed following a change in the elevation angle of the navigation viewpoint, including:

[0066] When the navigation object moves in the first section of the obstructed road section, the pitch angle following the navigation viewpoint increases, and a navigation picture with a longer viewing distance is displayed; when the navigation object moves in the second section of the obstructed road section, the pitch angle following the navigation viewpoint decreases, and a navigation picture with a shorter viewing distance is displayed.

[0067] Specifically, when the navigation object enters the first section from the entrance end of the shielded section, the pitch angle of the navigation viewpoint is adjusted from the initial pitch angle to the target pitch angle.

[0068] Among them, adjusting the pitch angle of the navigation viewpoint from the initial pitch angle to the target pitch angle may be switching the pitch angle of the navigation viewpoint from the initial pitch angle to the target pitch angle, or may be gradually increasing the pitch angle of the navigation viewpoint from the initial pitch angle to the target pitch angle. By directly switching from the initial pitch angle to the target pitch angle, a rapid change in the pitch angle can be achieved, and a navigation picture with a farther viewing distance can be obtained more quickly. By gradually increasing the pitch angle of the navigation viewpoint from the initial pitch angle to the target pitch angle, a sudden change in the navigation picture can be avoided from causing dizziness to the user.

[0069] Furthermore, after the pitch angle is changed, the terminal may determine the long-distance field of view corresponding to the target pitch angle, and display a long-distance navigation picture projected on the three-dimensional electronic map according to the long-distance field of view.

[0070] In one embodiment, the obscured road segment further includes a middle road segment between the first road segment and the second road segment, and when the navigation object moves in the middle road segment of the obscured road segment, the pitch angle of the navigation viewpoint remains unchanged.

[0071] Specifically, when the navigation object enters the first section from the entrance of the obstructed section, the pitch angle of the navigation viewpoint is adjusted from the initial pitch angle to the target pitch angle; when the navigation object moves in the middle section of the obstructed section, the pitch angle of the navigation viewpoint remains unchanged; when the navigation object enters the second section from the middle section, the pitch angle of the navigation viewpoint is adjusted from the target pitch angle to the initial pitch angle; after the pitch angle is adjusted to the initial pitch angle, a short-distance navigation screen obtained by projecting the initial pitch angle into the electronic map can also be displayed based on the short-distance field of view corresponding to the initial pitch angle.

[0072] In a specific application, taking the navigation object as a vehicle, starting from 500 meters before the vehicle is away from the tunnel, according to the top surface height of the tunnel about to enter, the navigation viewpoint is gradually lowered while keeping the navigation viewpoint pitch angle at 68° unchanged, until the navigation viewpoint is consistent with the top surface height of the tunnel, so as to achieve the effect that the navigation viewpoint follows the vehicle into the tunnel. In the first section where the vehicle enters the tunnel, by increasing the navigation viewpoint pitch angle to 80°, the visible distance in front of the vehicle becomes longer, ensuring that the vehicle has sufficient safe sight distance when driving in the tunnel. In the second section 200 meters away from the tunnel exit, the navigation viewpoint pitch angle is gradually restored to 68°, in preparation for raising the navigation viewpoint after exiting the tunnel. When the vehicle arrives at the tunnel entrance and is about to leave the tunnel, while keeping the navigation viewpoint pitch angle at 68° unchanged, the navigation viewpoint is gradually raised to restore the navigation viewpoint when driving on ordinary roads before.

[0073] In this embodiment, by performing three-stage processing inside the tunnel, the immersive experience brought to the user by the corresponding navigation pictures of entering the tunnel, driving in the tunnel and leaving the tunnel can be further improved, allowing the user to feel the driving stage in the tunnel.

[0074] In one embodiment, when the distance between the navigation object and the obstructed road section meets the distance condition, the pitch angle of the navigation viewpoint is kept unchanged, and the viewpoint height of the navigation viewpoint is adjusted to determine the field of view zoom ratio of the navigation viewpoint; and the zoomed navigation screen corresponding to the navigation viewpoint with the field of view zoomed according to the field of view zoom ratio is displayed.

[0075] Among them, keeping the pitch angle of the navigation viewpoint unchanged and adjusting the viewpoint height of the navigation viewpoint is a processing method that only changes the zoom ratio of the navigation viewpoint's field of view, without changing the field of view angle, such as Figure 3 and Figure 4 As shown, the map area viewed by the zoomed navigation screen corresponding to the navigation viewpoint that zooms the field of view according to the field of view zoom ratio gradually becomes larger or smaller. By displaying the zoomed navigation screen, a visual effect of about to enter or about to leave a blocked section of road is formed.

[0076] In this embodiment, by changing the navigation viewpoint and adjusting the field of view zoom ratio without changing the field of view angle when entering a blocked section, it can create a visual effect of entering or leaving a blocked section, making the scene switching of entering or leaving the blocked section very obvious, making the entrance or exit of the blocked section the focus of the user in the navigation screen, and having a stronger safety reminder effect on the user's driving behavior. In addition, only changing the field of view zoom ratio of the navigation viewpoint without changing the processing method of the field of view angle can also reduce or even avoid the dizziness caused to the user by the simultaneous changes in the field of view zoom and the field of view angle, thereby improving safety during driving.

[0077] In one embodiment, as the pitch angle of the navigation viewpoint increases, a navigation picture with a longer viewing distance is displayed, including: as the pitch angle of the navigation viewpoint increases from an initial pitch angle to a preset target pitch angle, a navigation picture with a longer viewing distance is displayed; the initial pitch angle is the pitch angle of the navigation viewpoint in the virtual shielded space before the navigation object enters the shielded section.

[0078] Further, as the pitch angle of the navigation viewpoint decreases, a navigation picture with a shorter viewing distance is displayed, including: as the pitch angle of the navigation viewpoint decreases from a target pitch angle to an initial pitch angle, a navigation picture with a shorter viewing distance is displayed.

[0079] In one embodiment, when the distance between the navigation object and the entrance of the obstructed road section meets the distance condition, the height of the navigation viewpoint is lowered to display a navigation screen with a gradually narrowing field of view, including: when the navigation object moves toward the obstructed road section and the distance between the navigation object and the entrance of the obstructed road section is less than or equal to a first preset distance, based on the first preset distance, determining the descent speed of the viewpoint height; according to the descent speed, uniformly lowering the viewpoint height of the navigation viewpoint to a target height that is lower than or equal to the corresponding spatial height of the virtual obstructed space; and displaying a navigation screen with a uniformly narrowing field of view as the height of the navigation viewpoint is uniformly lowered.

[0080] In a specific application, taking the obstructed road section as a tunnel as an example, when the distance between the navigation object and the tunnel entrance is less than or equal to the first preset distance, the descent speed of the viewpoint height is determined; based on the descent speed, the viewpoint height of the navigation viewpoint is uniformly lowered to the tunnel height of the tunnel; the field of view reduction ratio corresponding to each viewpoint height of the navigation viewpoint is determined in turn; the field of view of the navigation viewpoint is reduced in turn according to each field of view reduction ratio, and a navigation screen with a projected field of view reduced in turn is displayed.

[0081] In this embodiment, by determining the descending speed of the viewpoint height and lowering the viewpoint height at a uniform speed, a smooth transition of the navigation screen with a smaller field of view can be achieved, avoiding dizziness caused by sudden changes in field of view to the user, thereby improving safety during driving.

[0082] Furthermore, based on a first preset distance, a speed at which the viewpoint height descends is determined, including: determining a height difference between an initial height of the navigation viewpoint and a target height, the initial height being the viewpoint height of a target position point of the navigation viewpoint in the virtual shielded space; a distance between the target position point and the entrance of the shielded road section in the virtual shielded space being equal to a first preset distance; based on the first preset distance, determining a descending time required for the navigation object to reach the tunnel entrance; and based on the height difference and the descending time, determining a speed at which the viewpoint height descends in the virtual shielded space.

[0083] Furthermore, in a specific application, taking the obstructed road section as a tunnel as an example, the terminal determines the height difference between the initial viewpoint height of the navigation viewpoint and the tunnel height, the initial viewpoint height is the viewpoint height when the navigation object is located at the target position, and the target position is the position corresponding to the farthest distance that satisfies the first distance condition. Based on the height difference and the time required for the navigation object to reach the tunnel entrance, the descent speed of the viewpoint height is determined.

[0084] Further, based on the first preset distance, determining the descent time required for the navigation object to reach the tunnel entrance includes:

[0085] The initial driving speed and deceleration of the navigation object are obtained, where the initial driving speed is the driving speed corresponding to when the navigation object reaches the target position, and the deceleration is the speed change rate corresponding to when the navigation object performs a deceleration operation; based on the deceleration, the initial driving speed, the maximum allowable speed of the obscured section, and the first preset distance, the time required for the navigation object to reach the tunnel entrance is determined.

[0086] The initial driving speed of the navigation object refers to the driving speed of the navigation object at the position corresponding to the farthest distance that satisfies the first distance condition. For example, when the first distance condition is that the distance between the navigation object and the entrance of the shielded section is less than or equal to 500 meters, the driving speed of the navigation object is the driving speed when the distance between the navigation object and the entrance of the shielded section is 500 meters.

[0087] In a specific application, the process of determining the time required for a navigation object to reach a tunnel entrance includes: obtaining an initial driving speed and deceleration of the navigation object, the initial driving speed being the driving speed corresponding to when the navigation object reaches a target position, and the deceleration being the speed change rate corresponding to when the navigation object performs a deceleration operation; based on the deceleration, the initial driving speed, the maximum allowable speed of a shielded section, and the maximum allowable distance, determining the time required for the navigation object to reach the tunnel entrance.

[0088] In a specific application, suppose the vehicle is traveling at a speed of v1 when it is 500m away from the tunnel entrance, and the speed limit at the tunnel entrance is v2. Suppose the vehicle starts to decelerate according to the navigation prompt when it is 500m away from the tunnel entrance, and the deceleration is a1. The time required for the vehicle to travel from 500m away from the tunnel entrance to 0m away from the tunnel entrance is t. The initial height of the navigation viewpoint when it is away from the tunnel entrance is h, and the height of the tunnel entrance is h0. Suppose the pitch angle of the navigation viewpoint is 68°, the navigation viewpoint keeps the pitch angle unchanged, and moves downward at a uniform speed in the longitudinal direction, and the longitudinal moving speed is v 下 , the speed v at which the navigation viewpoint moves uniformly downward in the vertical direction 下 The relationship between the speed of the vehicle is as follows:

[0089] h-h0=v 下 t (1)

[0090] t=(v2-v1) / a (2)

[0091]

[0092]

[0093] In this embodiment, the descent speed is determined according to the initial driving speed and the deceleration. The navigation viewpoint is updated by uniformly lowering the viewpoint height from the initial viewpoint height to the tunnel height. This can achieve a smooth transition of the navigation screen with a smaller field of view, avoid dizziness caused to the user by sudden changes in the field of view, and match the descent speed of the viewpoint height with the change in the vehicle's moving speed, thereby achieving immersive picture changes during movement.

[0094] In one embodiment, the method includes: the method also includes: when the distance between the navigation object and the exit of the obstructed road section meets the distance condition, following the increase in the height of the navigation viewpoint, displaying a navigation picture with a gradually increasing field of view.

[0095] Specifically, when the navigation object moves toward the obstructed road section and the distance between the navigation object and the obstructed road section meets the first distance condition, the navigation screen corresponding to the reduced projection field of view is displayed; when the navigation object moves away from the obstructed road section and the distance between the navigation object and the obstructed road section meets the second distance condition, the navigation screen corresponding to the enlarged projection field of view is displayed.

[0096] Among them, the movement of the navigation object to the obstructed section refers to the movement process of the navigation object from being far away from the entrance of the obstructed section to being close to the entrance of the obstructed section. The distance condition includes that the change in the distance between the navigation object and the obstructed section conforms to the preset change trend and reaches the preset threshold range. The first distance condition can be that the distance between the navigation object and the entrance of the tunnel is less than or equal to the first preset distance. For example, the distance condition can be that the distance between the navigation object and the entrance of the obstructed section gradually decreases and is less than or equal to the first preset distance, such as less than 500 meters, indicating that the navigation object is about to reach the entrance of the obstructed section. The second distance condition can be that the distance between the navigation object and the exit of the tunnel is less than or equal to the second preset distance. For example, the distance condition can be that the distance between the navigation object and the exit of the obstructed section gradually decreases and is less than or equal to the second preset distance, such as less than 10 meters, indicating that the navigation object is about to reach the exit of the obstructed section.

[0097] Specifically, when the terminal detects that the navigation object moves toward the shielded section and the distance from the shielded section meets the first distance condition, the viewpoint height of the navigation viewpoint is lowered to reduce the projection field of view, and the navigation screen corresponding to the reduced projection field of view is displayed on the terminal. When the terminal detects that the navigation object moves away from the shielded section and the distance from the shielded section meets the second distance condition, the viewpoint height of the navigation viewpoint is raised to enlarge the projection field of view, and the navigation screen corresponding to the enlarged projection field of view is displayed.

[0098] In this embodiment, when the navigation object moves toward the obstructed road section, the navigation picture corresponding to the reduced projection field of view is displayed; when the navigation object moves away from the obstructed road section, the navigation picture corresponding to the enlarged projection field of view is displayed, creating a visual effect of about to enter or leave the obstructed road section, making the scene switching of entering or leaving the obstructed road section very obvious, making the entrance or exit of the obstructed road section the focus of the user's attention in the navigation picture, and having a stronger safety reminder effect on the user's driving behavior.

[0099] In one embodiment, as the altitude of the navigation viewpoint increases, a navigation screen with a gradually increasing field of view is displayed, including:

[0100] Following the change in the height of the navigation viewpoint from the target height to the initial height, a navigation screen is displayed in which the field of view gradually increases to the original field of view size;

[0101] Among them, the target height is less than or equal to the spatial height corresponding to the virtual shielded space, the initial height is the viewpoint height of the target position point of the navigation viewpoint in the virtual shielded space; the distance between the target position point and the entrance of the shielded section in the virtual shielded space is the maximum distance that meets the distance condition, and the original field of view size is the field of view size corresponding to the navigation viewpoint corresponding to the initial height.

[0102] When the navigation object moves toward the obstructed road section and the distance to the obstructed road section meets the first distance condition, the viewpoint height of the navigation viewpoint is lowered from the initial height to the target height, and the target height is equal to or lower than the obstruction height of the obstructed road section; based on the relationship between the change in the viewpoint height and the field of view scaling ratio, the navigation screen corresponding to the reduced field of view size is displayed.

[0103] The initial height may be the default viewpoint height of the navigation viewpoint corresponding to the navigation object when navigation is started, or the viewpoint height set for the navigation object in a road section with a wide field of view. The obstruction height of the obstructed road section refers to the top height that can be observed when the navigation object is in the obstructed road section. For example, when the obstructed road section is a tunnel, the obstruction height of the obstructed road section may be the top height of the tunnel.

[0104] Specifically, the terminal lowers the viewpoint height of the navigation viewpoint from an initial height to a target height that is equal to or lower than the obstruction height of the obstructed road section, determines the change in viewpoint height, and based on the relationship between the change in viewpoint height and the field of view scaling ratio, determines the target field of view scaling ratio, projects the field of view after reducing the field of view size according to the target field of view scaling ratio onto a three-dimensional electronic map, and displays the projected immersive navigation picture inside the obstructed road section.

[0105] In this embodiment, by lowering the viewpoint height of the navigation viewpoint from the initial height to a target height that is equal to or lower than the obstruction height of the obstructed road section, the field of view corresponding to the navigation viewpoint after the viewpoint height is reduced can be projected on the three-dimensional electronic map to obtain an immersive picture inside the obstructed road section, thereby achieving an immersive navigation experience.

[0106] Specifically, the navigation object being away from the obstructed section may be the navigation object approaching the exit of the obstructed section or the exit away from the obstructed section. Specifically, when the navigation object enters the obstructed section from the entrance of the obstructed section, the viewpoint height of the navigation viewpoint is a target height that is equal to or lower than the obstruction height of the obstructed section.

[0107] Specifically, when the terminal detects that the navigation object moves toward the exit of the obstructed road section and the distance to the exit is less than or equal to the preset distance, or when the navigation object reaches the exit of the obstructed road section, the viewpoint height of the navigation viewpoint is raised from the target height to the initial height, and the target field of view scaling ratio is determined based on the change in the viewpoint height and the relationship between the change in the viewpoint height and the field of view scaling ratio. The field of view after the field of view size is enlarged according to the target field of view scaling ratio is projected on the three-dimensional electronic map to display an immersive navigation picture in which the field of view becomes wider after leaving the obstructed road section.

[0108] In this embodiment, by raising the viewpoint height target height of the navigation viewpoint to the initial height, the enlarged view based on the view size is projected on the three-dimensional electronic map, and an immersive navigation picture with a wide view after leaving the obstructed road section can be displayed, thereby achieving an immersive navigation experience and improving driving safety.

[0109] In a specific embodiment, when the distance between the navigation object and the exit of the obstructed road section meets the distance condition corresponding to the increase in the field of view, the navigation screen with the gradually increasing field of view is displayed as the height of the navigation viewpoint increases, including: when the navigation object moves to the exit of the obstructed road section and moves in a direction away from the obstructed road section, the navigation screen with the gradually increasing field of view is displayed as the height of the navigation viewpoint increases. Further, when the distance between the navigation object and the exit of the obstructed road section is greater than or equal to a second preset distance, a navigation screen that maintains the initial field of view size is displayed.

[0110] In another specific embodiment, when the distance between the navigation object and the exit of the obstructed road section meets the distance condition, the navigation screen with a gradually increasing field of view is displayed as the height of the navigation viewpoint increases, including: when the navigation object moves toward the exit of the obstructed road section, and the distance between the navigation object and the exit of the obstructed road section is less than or equal to the second preset distance, the navigation screen with a gradually increasing field of view is displayed as the height of the navigation viewpoint increases. Further, when the navigation object moves to the exit of the obstructed road section, a navigation screen with an initial field of view size is displayed.

[0111] Specifically, Figure 7 As shown, when the terminal detects that the navigation object moves toward the exit of the obstructed road section and the distance from the exit is less than or equal to the preset distance, or when the navigation object reaches the exit of the obstructed road section, the viewpoint height of the navigation viewpoint is raised from the target height to the initial height, and the target field of view scaling ratio is determined based on the change in the viewpoint height and the relationship between the change in the viewpoint height and the field of view scaling ratio. The field of view after the field of view size is enlarged according to the target field of view scaling ratio is projected on the three-dimensional electronic map to display an immersive navigation picture in which the field of view becomes wider after leaving the obstructed road section.

[0112] In this embodiment, by raising the viewpoint height target height of the navigation viewpoint to the initial height, the enlarged view based on the view size is projected on the three-dimensional electronic map, and an immersive navigation picture with a wide view after leaving the obstructed road section can be displayed, thereby achieving an immersive navigation experience and improving driving safety.

[0113] In one embodiment, the obstructed road section is a tunnel. When the navigation object is far away from the obstructed road section and the distance to the obstructed road section satisfies a second distance condition, a navigation picture corresponding to the enlarged projection field of view is displayed, including:

[0114] When the navigation object moves toward the tunnel exit, and the distance from the tunnel exit is less than or equal to the second preset distance, or the navigation object moves to the tunnel exit, the navigation viewpoint is raised at a uniform speed to a preset viewpoint height based on the driving speed and acceleration of the navigation object, and the acceleration is the speed change rate corresponding to the navigation object when performing the acceleration operation; the projection field of view magnification ratio corresponding to each viewpoint height of the navigation viewpoint is determined in turn; the field of view of the navigation viewpoint is magnified in turn according to each field of view magnification ratio, and a navigation screen with the projection field of view magnified in turn is displayed.

[0115] In a specific application, assume that the vehicle travels at a speed v3 in the tunnel, which is less than or equal to the speed limit v2 at the tunnel entrance. The time required for the vehicle to travel from 200 meters from the tunnel entrance to 0 meters from the tunnel exit is t2. The initial height of the navigation viewpoint at the tunnel entrance is h, and the height of the tunnel entrance is h0. The pitch angle of the navigation viewpoint remains unchanged at 68°. The navigation viewpoint moves upward at a uniform speed in the longitudinal direction, and the longitudinal moving speed is v. The speed at which the navigation viewpoint moves upward at a uniform speed in the longitudinal direction is v. 上 The relationship between the speed of the vehicle is as follows:

[0116] h-h0=v 上 t2 (5)

[0117] t2=200 / v3 (6)

[0118]

[0119]

[0120] In this embodiment, the rising speed of the navigation viewpoint is determined according to the driving speed and acceleration of the vehicle in the tunnel. By uniformly raising the viewpoint height of the navigation viewpoint from the tunnel height to the original height to update the navigation picture, a smooth transition of the navigation picture with a larger field of view can be achieved, avoiding the dizziness of the user caused by sudden changes in the field of view, and matching the rising speed of the viewpoint height with the change in the vehicle's moving speed, thereby achieving immersive changes in the navigation picture based on speed changes during vehicle driving.

[0121] Furthermore, the rising speed of the navigation viewpoint can be determined based on the height difference between the tunnel height and the preset viewpoint height of the navigation viewpoint, and the time required for the navigation object to reach the tunnel exit; according to the rising speed, the viewpoint height of the navigation viewpoint is uniformly raised to the initial viewpoint height, so as to achieve a uniform increase in the navigation picture.

[0122] In one embodiment, following the change in the height of the navigation viewpoint from the target height to the initial height, displaying a navigation screen in which the field of view gradually increases to the original field of view size includes:

[0123] Based on the corresponding relationship between the altitude change and the field of view size change and the altitude change speed from the target altitude to the initial altitude, the field of view size change speed at which the field of view gradually increases to the original field of view size is determined; and a navigation screen is displayed in which the field of view increases to the original field of view size based on the field of view size change speed.

[0124] Among them, the height change is positively correlated with the change in field of view size, and the height change is positively correlated with the distance between the navigation object and the obscured road section. That is, the viewpoint height of the navigation viewpoint will change with the change of the distance between the navigation object and the obscured road section. The closer the distance between the navigation object and the obscured road section, the lower the updated viewpoint height, and the faster the navigation viewpoint height changes, the faster the field of view size changes.

[0125] In this embodiment, the correspondence between the change in altitude and the change in field of view size is quantified so that the displayed navigation screen changes the speed of gradually shrinking the field of view based on the speed of the altitude change. The faster the speed, the more obvious the effect of gradually shrinking the field of view will be, thereby improving the user experience.

[0126] In a specific embodiment, Figure 8 As shown, a navigation screen display method is provided, comprising the following steps:

[0127] Step 802 , displaying a navigation picture for the navigation object, where the navigation picture is a three-dimensional picture obtained by projecting the field of view of the navigation viewpoint corresponding to the navigation object onto the three-dimensional electronic map.

[0128] Step 804: when the navigation object moves toward the shielded road section and the distance between the navigation object and the entrance of the shielded road section is less than or equal to the first preset distance, determine the height difference between the initial height of the navigation viewpoint and the target height.

[0129] The initial height is the viewpoint height of the target position point of the navigation viewpoint in the virtual shielded space. The distance between the target position point and the position point where the entrance of the shielded road section is located in the virtual shielded space is equal to the first preset distance.

[0130] Step 806, obtaining the initial driving speed and deceleration of the navigation object, where the initial driving speed is the driving speed corresponding to when the navigation object reaches the target position point, and the deceleration is the speed change rate corresponding to when the navigation object performs a deceleration operation.

[0131] Step 808, determining the time required for the navigation object to reach the tunnel entrance based on the deceleration, the initial driving speed, the maximum allowed speed of the obstructed road section, and the first preset distance.

[0132] Step 810: Determine the descending speed of the viewpoint height in the virtual shielding space based on the height difference and the descending time.

[0133] Step 812: uniformly lower the viewpoint height of the navigation viewpoint according to the descending speed to a target height that is lower than or equal to the space height corresponding to the virtual shielding space.

[0134] Step 814, as the altitude of the navigation viewpoint decreases at a uniform speed, a navigation screen with a uniformly reduced field of view is displayed.

[0135] Step 816: When the distance between the navigation object and the entrance of the obstructed road section meets the first distance condition, the navigation viewpoint is lowered in height to display a navigation picture with a gradually narrowing field of view.

[0136] Step 818: When the navigation object enters the shielded section, the navigation viewpoint moves in the virtual shielded space corresponding to the shielded section, and a navigation picture projected from inside the virtual shielded space is displayed.

[0137] The shielded section includes a first section near an entrance end of the shielded section, a second section near an exit end of the shielded section, and an intermediate section between the first section and the second section.

[0138] Step 820: When the navigation object moves in the first section of the blocked section, the pitch angle of the navigation viewpoint increases from the initial pitch angle to the preset target pitch angle, and a navigation picture with a longer viewing distance is displayed.

[0139] The initial pitch angle is the pitch angle of the navigation viewpoint in the virtual shielded space before the navigation object enters the shielded section.

[0140] Step 822: When the navigation object moves in the middle section of the obscured section, the pitch angle of the navigation viewpoint remains unchanged.

[0141] Step 824: When the navigation object moves in the second section of the obstructed section, the pitch angle of the navigation viewpoint decreases from the target pitch angle to the initial pitch angle, and a navigation picture with a shorter viewing distance is displayed.

[0142] Step 826, when the navigation object moves to the exit of the obstructed road section and moves in the direction away from the obstructed road section, based on the correspondence between the height change and the field of view size change and the height change speed when the target height rises to the initial height, determine the field of view size change speed at which the field of view gradually increases to the original field of view size.

[0143] Step 828, displaying a navigation screen in which the field of view increases to the original field of view size based on the field of view size change speed.

[0144] Step 830: When the distance between the navigation object and the exit of the blocked road section is greater than or equal to a second preset distance, a navigation picture is displayed with the initial field of view size unchanged.

[0145] Step 832, when the navigation object moves toward the exit of the obstructed road section, and the distance between the navigation object and the exit of the obstructed road section is less than or equal to a second preset distance, based on the correspondence between the height change and the field of view size change and the height change speed when the target height rises to the initial height, determine the field of view size change speed at which the field of view gradually increases to the original field of view size.

[0146] Step 834, displaying a navigation screen in which the field of view increases to the original field of view size based on the field of view size change speed.

[0147] Step 836: When the navigation object moves to the exit of the blocked road section, a navigation screen with an initial field of view size is displayed.

[0148] Among them, the target height is less than or equal to the space height corresponding to the virtual shielded space, the initial height is the viewpoint height of the target position point of the navigation viewpoint in the virtual shielded space; the distance between the target position point and the position point at the entrance of the shielded road section in the virtual shielded space is the maximum distance that satisfies the distance condition, and the original field of view size is the field of view size corresponding to the navigation viewpoint corresponding to the initial height.

[0149] This application also provides an application scenario, such as Fig. 9 As shown, the application scenario applies the above-mentioned navigation screen display method. Specifically, the application of the navigation screen display in the application scenario is as follows:

[0150] In the traditional navigation screen display method, when the vehicle enters the tunnel, the camera position is kept above the top surface of the tunnel. By making the tunnel semi-transparent, the camera can clearly capture the driving status of the vehicle. However, the vehicle does not have a real scene experience when driving in the tunnel, resulting in low user trust in product data. The above navigation screen display method changes the viewing angle of the camera position before the vehicle enters the tunnel, allowing the camera position to follow the vehicle into the tunnel, making the scene of the vehicle driving in the tunnel more realistic, and also greatly improving user trust in the product.

[0151] Specifically, starting from 500 meters before the vehicle is away from the tunnel, the height of the camera position is gradually lowered according to the height of the top surface of the tunnel that is about to enter, while keeping the camera position pitch angle at 68° unchanged, until the camera position is at the same height as the tunnel top surface, achieving the effect of the camera position following the vehicle into the tunnel.

[0152] When the vehicle enters the tunnel, the camera's pitch angle is increased to 80°, which increases the visible distance in front of the vehicle and ensures that the vehicle has sufficient safe sight distance when driving in the tunnel. When the vehicle is 200 meters away from the tunnel exit and is about to leave the tunnel, the camera's pitch angle is restored to 68° to prepare for raising the camera after exiting the tunnel.

[0153] When the vehicle reaches the tunnel entrance and is about to leave the tunnel, the camera position is gradually raised while maintaining the pitch angle of the camera at 68° to restore the camera position when driving on the ordinary road.

[0154] Among them, it is assumed that the vehicle is traveling at a speed of v1 when it is 500 meters away from the tunnel entrance, and the speed limit at the tunnel entrance is v2. It is assumed that the vehicle starts to decelerate according to the navigation prompt when it is 500 meters away from the tunnel entrance, and the deceleration is a. The time required for the vehicle to travel from 500 meters away from the tunnel entrance to 0 meters away from the tunnel entrance is t. The initial height of the camera when it is away from the tunnel entrance is h, and the height of the tunnel entrance is h0. It is assumed that the camera moves downward at a uniform speed in the longitudinal direction, and the longitudinal moving speed is v 下 , we can calculate the speed v of the camera moving uniformly downward in the vertical direction 下 The relationship between the speed of the vehicle is as follows:

[0155] h-h0=v 下 t (9)

[0156] t=(v2-v1) / a (10)

[0157]

[0158]

[0159] Assume that the vehicle travels at a speed v3 in the tunnel, which is less than or equal to the speed limit v2 at the tunnel entrance. The time required for the vehicle to travel from 200 meters away from the tunnel entrance to 0 meters away from the tunnel exit is t2. The initial height of the navigation viewpoint at the tunnel entrance is h, and the height of the tunnel entrance is h0. The pitch angle of the navigation viewpoint remains unchanged at 68°. The navigation viewpoint moves upward at a uniform speed in the longitudinal direction, and the longitudinal moving speed is v. 上 , the relationship between the speed v of the navigation viewpoint moving uniformly upward in the longitudinal direction and the vehicle speed is as follows:

[0160] h-h0=v 上 t2 (13)

[0161] t2=200 / v3 (14)

[0162]

[0163]

[0164] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0165] Based on the same inventive concept, the embodiment of the present application also provides a navigation screen display device for implementing the above-mentioned navigation screen display method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above-mentioned method, so the specific limitations in one or more navigation screen display device embodiments provided below can refer to the limitations of the navigation screen display method above, and will not be repeated here.

[0166] In one embodiment, Fig.10 As shown, a navigation screen display device 1000 is provided, comprising: a first display module 1002, a second display module 1004 and a third display module 1006, wherein:

[0167] A first display module 1002 is used to display a navigation picture for a navigation object, wherein the navigation picture is a three-dimensional picture projected on a three-dimensional electronic map according to the field of view of a navigation viewpoint corresponding to the navigation object;

[0168] The second display module 1004 is configured to display a navigation picture with a gradually narrowing field of view as the height of the navigation viewpoint decreases when the distance between the navigation object and the entrance of the shielded road section meets a distance condition;

[0169] The third display module 1006 is used to display a navigation picture projected from inside the virtual shielded space following the movement of the navigation viewpoint in the virtual shielded space corresponding to the shielded road section when the navigation object enters the shielded road section.

[0170] In one embodiment, the apparatus further comprises:

[0171] The sight distance change module is used to display a navigation picture with a sight distance change following the pitch angle change of the navigation viewpoint when the navigation object moves in the shielded road section.

[0172] In one embodiment, the shielded road section includes a first road section near an entrance end of the shielded road section and a second road section near an exit end of the shielded road section;

[0173] The viewing distance change module includes a first viewing distance change module and a second viewing distance change module;

[0174] A first sight distance changing module, configured to display a navigation picture with a longer sight distance as the elevation angle of the navigation viewpoint increases when the navigation object moves in the first section of the shielded section;

[0175] The second sight distance changing module is used to display a navigation picture with a shorter sight distance following the decrease in the pitch angle of the navigation viewpoint when the navigation object moves in the second section of the shielded section.

[0176] In one embodiment, the obscured road section further includes a middle section between the first road section and the second road section, and when the navigation object moves in the middle section of the obscured road section, the pitch angle of the navigation viewpoint remains unchanged.

[0177] In one embodiment, the first viewing distance change module is further used to display a navigation screen with a longer viewing distance as the pitch angle of the navigation viewpoint increases from an initial pitch angle to a preset target pitch angle; the initial pitch angle is the pitch angle of the navigation viewpoint in the virtual obscured space before the navigation object enters the obscured road section.

[0178] In one embodiment, the second viewing distance changing module is further configured to display a navigation picture with a shorter viewing distance as the pitch angle of the navigation viewpoint decreases from the target pitch angle to the initial pitch angle.

[0179] In one embodiment, the second display module is also used to determine the descent speed of the viewpoint height based on a first preset distance when the navigation object moves toward the obscured road section and the distance between the navigation object and the entrance of the obscured road section is less than or equal to a first preset distance; uniformly lower the viewpoint height of the navigation viewpoint according to the descent speed to a target height that is lower than or equal to the height of the space corresponding to the virtual obscured space; and display a navigation screen with a uniformly reduced field of view following the uniform decrease in the height of the navigation viewpoint.

[0180] In one embodiment, the second display module is also used to determine the height difference between the initial height of the navigation viewpoint and the target height, the initial height being the viewpoint height of the target position point of the navigation viewpoint in the virtual shielded space; the distance between the target position point and the position point at the entrance of the shielded road section in the virtual shielded space is equal to the first preset distance; based on the first preset distance, determine the descent time required for the navigation object to reach the tunnel entrance; based on the height difference and the descent time, determine the descent speed of the viewpoint height in the virtual shielded space.

[0181] In one embodiment, the second display module is also used to obtain the initial driving speed and deceleration of the navigation object, the initial driving speed is the driving speed corresponding to when the navigation object reaches the target position point, and the deceleration is the speed change rate corresponding to when the navigation object performs a deceleration operation; based on the deceleration, the initial driving speed, the maximum allowable speed of the shielded road section and the first preset distance, the time required for the navigation object to reach the tunnel entrance is determined.

[0182] In one embodiment, the device further includes a fourth display module, which is used to display a navigation picture with a gradually increasing field of view as the height of the navigation viewpoint increases when the distance between the navigation object and the exit of the obstructed road section meets a distance condition.

[0183] In one embodiment, the fourth display module is also used to follow the change of the height of the navigation viewpoint from the target height to the initial height, and display a navigation screen in which the field of view gradually increases to the original field of view size; wherein, the target height is less than or equal to the spatial height corresponding to the virtual shielded space, and the initial height is the viewpoint height of the target position point of the navigation viewpoint in the virtual shielded space; the distance between the target position point and the position point at the entrance of the shielded road section in the virtual shielded space is the maximum distance that satisfies the distance condition, and the original field of view size is the field of view size corresponding to the navigation viewpoint corresponding to the initial height.

[0184] In one embodiment, the fourth display module is further used to display a navigation picture with a gradually increasing field of view as the height of the navigation viewpoint increases when the navigation object moves to the exit of the obstructed road section and moves away from the obstructed road section.

[0185] In one embodiment, the fourth display module is further used to display a navigation picture that maintains an unchanged initial field of view size when the distance between the navigation object and the exit of the shielded road section is greater than or equal to a second preset distance.

[0186] In one embodiment, the fourth display module is also used to display a navigation screen with a gradually increasing field of view as the height of the navigation viewpoint increases when the navigation object moves toward the exit of the obstructed road section and the distance between the navigation object and the exit of the obstructed road section is less than or equal to a second preset distance.

[0187] In one embodiment, when the distance condition corresponding to the increase in field of view is that the navigation object moves toward the exit of the obstructed road section, and the distance between the navigation object and the exit of the obstructed road section is less than or equal to a second preset distance, the fourth display module is also used to display the navigation screen with the initial field of view size when the navigation object moves to the exit of the obstructed road section.

[0188] The fourth display module is also used to determine the speed of change of the field of view gradually increasing to the original field of view size based on the correspondence between the altitude change and the field of view size change and the altitude change speed from the target altitude to the initial altitude; and display a navigation screen in which the field of view increases to the original field of view size based on the field of view size change speed.

[0189] Each module in the above navigation screen display device can be implemented in whole or in part by software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module.

[0190] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Fig.11 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a navigation screen display method is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a button, a trackball or a touch pad set on the computer device housing, or an external keyboard, touch pad or mouse, etc.

[0191] Those skilled in the art will understand that Fig.11The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0192] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0193] In one embodiment, a computer-readable storage medium is provided, storing a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0194] In one embodiment, a computer program product or computer program is provided, the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the steps in the above-mentioned method embodiments.

[0195] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions.

[0196] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0197] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0198] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A navigation screen display method, characterized in that: The method comprises: Displaying a navigation picture for the navigation object, the navigation picture being a three-dimensional picture projected on a three-dimensional electronic map according to the field of view of the navigation viewpoint corresponding to the navigation object; When the distance between the navigation object and the entrance of the obstructed road section meets the distance condition, the elevation angle of the navigation viewpoint is kept unchanged, and as the height of the navigation viewpoint decreases, a navigation picture with a gradually narrowing field of view is displayed; When the navigation object enters the shielded section, following the movement of the navigation viewpoint in the virtual shielded space corresponding to the shielded section, a navigation picture projected from inside the virtual shielded space is displayed; When the navigation object moves in the shielded road section, the height of the navigation viewpoint is kept unchanged, and the navigation picture with the changing sight distance is displayed following the change of the pitch angle of the navigation viewpoint.

2. The method according to claim 1, characterized in that: The shielded road section includes a first road section near an entrance end of the shielded road section and a second road section near an exit end of the shielded road section; When the navigation object moves in the shielded road section, following the change of the pitch angle of the navigation viewpoint, displaying a navigation picture with a change in the viewing distance includes: When the navigation object moves in the first section of the shielded section, the elevation angle of the navigation viewpoint increases, and a navigation picture with a longer viewing distance is displayed; When the navigation object moves in the second section of the blocked section, the elevation angle following the navigation viewpoint decreases, and a navigation picture with a shorter viewing distance is displayed.

3. The method according to claim 2, characterized in that The obscured road section further includes a middle section between the first road section and the second road section. When the navigation object moves in the middle section of the obscured road section, the pitch angle of the navigation viewpoint remains unchanged.

4. The method according to claim 2, characterized in that: The step of following the increase of the pitch angle of the navigation viewpoint to display a navigation screen with a longer viewing distance includes: Following the pitch angle of the navigation viewpoint increasing from an initial pitch angle to a preset target pitch angle, a navigation picture with a longer viewing distance is displayed; The initial pitch angle is the pitch angle of the navigation viewpoint in the virtual shielded space before the navigation object enters the shielded road section.

5. The method according to claim 4, characterized in that The step of following the decrease in the pitch angle of the navigation viewpoint to display a navigation picture with a shorter viewing distance includes: As the pitch angle of the navigation viewpoint decreases from the target pitch angle to the initial pitch angle, a navigation picture with a shorter viewing distance is displayed.

6. The method according to claim 1, characterized in that When the distance between the navigation object and the entrance of the shielded road section meets the distance condition, the navigation viewpoint is lowered and a navigation picture with a gradually narrowing field of view is displayed, including: When the navigation object moves toward the shielded road section, and the distance between the navigation object and the entrance of the shielded road section is less than or equal to a first preset distance, determining a descending speed of the height of the navigation viewpoint based on the first preset distance; According to the descending speed, uniformly lowering the viewpoint height of the navigation viewpoint to a target height that is lower than or equal to the space height corresponding to the virtual shielding space; Following the uniform decrease in the altitude of the navigation viewpoint, a navigation screen with a uniformly reduced field of view is displayed.

7. The method according to claim 6, characterized in that The step of determining the descending speed of the viewpoint height based on the first preset distance includes: Determine a height difference between an initial height of the navigation viewpoint and the target height, wherein the initial height is a viewpoint height of a target position point of the navigation viewpoint in the virtual shielded space; and a distance between the target position point and a position point at which the entrance of the shielded road section is located in the virtual shielded space is equal to the first preset distance; Based on the first preset distance, determining a descent time required for the navigation object to reach the entrance; Based on the height difference and the descending time, a descending speed of the viewpoint height in the virtual shielding space is determined.

8. The method according to claim 6, characterized in that The determining, based on the first preset distance, the descent time required for the navigation object to reach the entrance comprises: Acquire the initial driving speed and deceleration of the navigation object, wherein the initial driving speed is the driving speed corresponding to when the navigation object reaches the target position point, and the deceleration is the speed change rate corresponding to when the navigation object performs a deceleration operation; The time required for the navigation object to reach the entrance is determined based on the deceleration, the initial driving speed, the maximum allowed speed of the shielded road section, and the first preset distance.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises: When the distance between the navigation object and the exit of the shielded road section satisfies a distance change condition, a navigation picture with a gradually increasing field of view is displayed as the altitude of the navigation viewpoint increases.

10. The method according to claim 9, characterized in that The step of displaying a navigation picture with a gradually increasing field of view as the altitude of the navigation viewpoint increases includes: Following the change in the height of the navigation viewpoint from the target height to the initial height, a navigation screen is displayed in which the field of view gradually increases to the original field of view size; Among them, the target height is less than or equal to the spatial height corresponding to the virtual shielded space, the initial height is the viewpoint height of the target position point of the navigation viewpoint in the virtual shielded space; the distance between the target position point and the position point at the entrance of the shielded road section in the virtual shielded space is the maximum distance that satisfies the distance condition; the original field of view size is the field of view size corresponding to when the navigation viewpoint is at the initial height.

11. The method according to claim 9, characterized in that When the distance between the navigation object and the exit of the shielded road section satisfies the distance change condition, displaying a navigation picture with a gradually increasing field of view as the altitude of the navigation viewpoint increases, comprises: When the navigation object moves to the exit of the shielded road section and moves in a direction away from the shielded road section, a navigation picture with a gradually increasing field of view is displayed as the altitude of the navigation viewpoint increases.

12. The method according to claim 11, characterized in that When the distance change condition is that the navigation object moves to the exit of the shielded road section and moves in a direction away from the shielded road section, the method further includes: When the distance between the navigation object and the exit of the obstructed road section is greater than or equal to a second preset distance, the viewpoint height of the navigation viewpoint maintains the target height unchanged, and displays a navigation screen that maintains an unchanged initial field of view scaling ratio, wherein the initial field of view scaling ratio is the field of view scaling ratio corresponding to the target height when the navigation viewpoint is located, and the target height is less than or equal to the obstruction height of the obstructed road section.

13. The method according to claim 9, characterized in that When the distance between the navigation object and the exit of the shielded road section satisfies the distance condition corresponding to the increase of the field of view, displaying a navigation picture with a gradually increasing field of view as the height of the navigation viewpoint increases, comprises: When the navigation object moves toward the exit of the obstructed road section and the distance between the navigation object and the exit of the obstructed road section is less than or equal to a second preset distance, a navigation picture with a gradually increasing field of view is displayed as the altitude of the navigation viewpoint increases.

14. The method according to claim 13, characterized in that When the distance change condition is that the navigation object moves toward the exit of the shielded road section, and the distance between the navigation object and the exit of the shielded road section is less than or equal to a second preset distance, the method further includes: When the navigation object moves to the exit of the obstructed road section, a navigation screen of an original field of view size is displayed, where the original field of view size is the field of view size corresponding to when the navigation viewpoint is at an initial height.

15. The method according to claim 10, characterized in that The step of following the change in the height of the navigation viewpoint from the target height to the initial height and displaying a navigation screen in which the field of view gradually increases to the original field of view size includes: Based on the corresponding relationship between the height change and the change in the size of the visual field and the speed at which the target height increases to the initial height, the speed at which the visual field gradually increases to the original visual field size is determined; A navigation screen is displayed in which the field of view increases to an original field of view size based on the field of view size change speed.

16. A navigation screen display device, characterized in that: The device comprises: A first display module, used for displaying a navigation picture for a navigation object, wherein the navigation picture is a three-dimensional picture obtained by projecting a field of view of a navigation viewpoint corresponding to the navigation object onto a three-dimensional electronic map; A second display module is used to keep the pitch angle of the navigation viewpoint unchanged when the distance between the navigation object and the entrance of the shielded road section meets the distance condition, and display a navigation picture with a gradually narrowing field of view as the height of the navigation viewpoint decreases; A third display module is used for following the movement of the navigation viewpoint in the virtual shielded space corresponding to the shielded section when the navigation object enters the shielded section, and displaying a navigation picture projected from inside the virtual shielded space; The sight distance changing module is used to keep the height of the navigation viewpoint unchanged when the navigation object moves in the shielded road section, follow the pitch angle change of the navigation viewpoint, and display the navigation picture with the sight distance change.

17. The device according to claim 16, characterized in that The shielded road section includes a first road section near an entrance end of the shielded road section and a second road section near an exit end of the shielded road section; The viewing distance change module includes a first viewing distance change module and a second viewing distance change module; The first sight distance changing module is used to display a navigation picture with a longer sight distance as the elevation angle of the navigation viewpoint increases when the navigation object moves in the first section of the shielded section; The second viewing distance changing module is used to display a navigation picture with a shorter viewing distance as the pitch angle of the navigation viewpoint decreases when the navigation object moves in the second section of the shielded section.

18. The device according to claim 17, characterized in that The obscured road section further includes a middle section between the first road section and the second road section. When the navigation object moves in the middle section of the obscured road section, the pitch angle of the navigation viewpoint remains unchanged.

19. The device according to claim 17, characterized in that The first sight distance changing module is used to display a navigation picture with a longer sight distance as the pitch angle of the navigation viewpoint increases from an initial pitch angle to a preset target pitch angle; The initial pitch angle is the pitch angle of the navigation viewpoint in the virtual shielded space before the navigation object enters the shielded road section.

20. The device according to claim 19, characterized in that The second viewing distance changing module is further configured to display a navigation picture with a shorter viewing distance as the pitch angle of the navigation viewpoint decreases from the target pitch angle to the initial pitch angle.

21. The device according to claim 16, characterized in that The second display module is also used to determine the descent speed of the navigation viewpoint based on the first preset distance when the navigation object moves toward the obstructed road section and the distance between the navigation object and the entrance of the obstructed road section is less than or equal to the first preset distance; uniformly lower the viewpoint height of the navigation viewpoint according to the descent speed to a target height that is lower than or equal to the height of the corresponding space of the virtual obstructed space; and display a navigation screen with a uniformly reduced field of view following the uniform decrease in the height of the navigation viewpoint.

22. The device according to claim 21, characterized in that The second display module is also used to determine the height difference between the initial height of the navigation viewpoint and the target height, the initial height being the viewpoint height of the target position point of the navigation viewpoint in the virtual shielded space; the distance between the target position point and the position point at the entrance of the shielded road section in the virtual shielded space is equal to the first preset distance; based on the first preset distance, determine the descent time required for the navigation object to reach the entrance; based on the height difference and the descent time, determine the descent speed of the viewpoint height in the virtual shielded space.

23. The device according to claim 21, characterized in that The second display module is further used to obtain the initial driving speed and deceleration of the navigation object, the initial driving speed is the driving speed corresponding to when the navigation object reaches the target position point, and the deceleration is the speed change rate corresponding to when the navigation object performs a deceleration operation; The time required for the navigation object to reach the entrance is determined based on the deceleration, the initial driving speed, the maximum allowed speed of the shielded road section, and the first preset distance.

24. The device according to any one of claims 16 to 23, characterized in that The device also includes a fourth display module, which is used to display a navigation picture with a gradually increasing field of view as the height of the navigation viewpoint increases when the distance between the navigation object and the exit of the shielded road section meets a distance change condition.

25. The device according to claim 24, characterized in that The fourth display module is further configured to display a navigation screen whose field of view gradually increases to an original field of view size as the height of the navigation viewpoint increases from the target height to the initial height; Among them, the target height is less than or equal to the spatial height corresponding to the virtual shielded space, the initial height is the viewpoint height of the target position point of the navigation viewpoint in the virtual shielded space; the distance between the target position point and the position point at the entrance of the shielded road section in the virtual shielded space is the maximum distance that satisfies the distance condition; the original field of view size is the field of view size corresponding to when the navigation viewpoint is at the initial height.

26. The device according to claim 24, characterized in that The fourth display module is further configured to display a navigation picture with a gradually increasing field of view as the height of the navigation viewpoint increases when the navigation object moves to the exit of the shielded road section and moves in a direction away from the shielded road section.

27. The device according to claim 26, characterized in that The fourth display module is also used for maintaining the target height unchanged at the viewpoint height of the navigation viewpoint and displaying the navigation screen according to the initial field of view scaling ratio when the distance between the navigation object and the exit of the obstructed road section is greater than or equal to the second preset distance, wherein the initial field of view scaling ratio is the field of view scaling ratio corresponding to the target height when the navigation viewpoint is located, and the target height is less than or equal to the obstruction height of the obstructed road section.

28. The device according to claim 26, characterized in that The fourth display module is also used to display a navigation picture with a gradually increasing field of view as the height of the navigation viewpoint increases when the navigation object moves toward the exit of the obstructed road section and the distance between the navigation object and the exit of the obstructed road section is less than or equal to a second preset distance.

29. The device according to claim 28, characterized in that When the distance condition corresponding to the increase in field of view is that the navigation object moves toward the exit of the obstructed road section, and the distance between the navigation object and the exit of the obstructed road section is less than or equal to a second preset distance, the fourth display module is also used to display a navigation screen with an original field of view size when the navigation object moves to the exit of the obstructed road section, and the original field of view size is the field of view size corresponding to when the navigation viewpoint is at an initial height.

30. The device according to claim 25, characterized in that The fourth display module is also used to determine the speed of change of the field of view gradually increasing to the original field of view size based on the correspondence between the altitude change and the field of view size change and the altitude change speed from the target altitude to the initial altitude; and display a navigation screen in which the field of view increases to the original field of view size based on the field of view size change speed.

31. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 15 are implemented.

32. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 15 are implemented.

33. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 15 are implemented.

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