Device and method for map display

Abstract

The present invention provides a method for map display, the method comprising: presetting a plurality of color-matched enlarged views of the intersection for an intersection; when a vehicle reaches a predetermined trigger position close to the intersection, obtaining the external environmental conditions of the vehicle; and selecting an enlarged view of the intersection from the plurality of color-matched enlarged views of the intersection according to the external environmental conditions to be displayed together with a navigation map, wherein the selected enlarged view of the intersection is different from other enlarged views of the intersection in the plurality of color-matched enlarged views in the color of the map. The present invention also provides a device for map display, a computer storage medium, and a car. The technical solution of the present invention obtains the external environmental conditions of the vehicle and then selects an enlarged view of the intersection corresponding to the external environmental conditions, so that the user can see the situation at the intersection comfortably and clearly.

Description

Technical Field

[0001] The invention relates to the field of automobile navigation, and in particular to a device and method for map display. Background Art

[0002] With the development of electronic technology and economy, and the popularity of private cars, car navigation plays an irreplaceable role in the automotive field. Car navigation provides drivers with positioning, route calculation, voice guidance, driving speed, real-time traffic information, etc. As car navigation has attracted more and more attention, the display effect of navigation has become particularly important on the basis of focusing on navigation accuracy.

[0003] The current car navigation systems on the market provide a magnified view of the intersection when approaching a complex intersection, so that users can understand the situation at the intersection more clearly and accurately and avoid going the wrong way. However, the style and color of the existing magnified intersection view do not change during the navigation process, that is, they cannot adapt to the external environmental conditions. This will result in that under certain lighting conditions, even if the navigation system provides a magnified intersection view, the user cannot see it clearly, and it does not play its due role. In addition, a single form of magnified intersection view cannot provide users with an "immersive" experience.

[0004] The information disclosed in the background section of the present invention above is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] In order to solve at least one of the above problems in the prior art, the present invention provides a method for map display, the method comprising: pre-setting a plurality of color-matched enlarged intersection images for an intersection; when a vehicle reaches a predetermined trigger position close to the intersection, obtaining the external environmental conditions of the vehicle; and selecting an enlarged intersection image from the plurality of color-matched enlarged intersection images according to the external environmental conditions and displaying the enlarged intersection image with the navigation map. Figure 1 The selected enlarged image of the intersection is displayed together, wherein the color scheme of the map is different from that of other enlarged images of the intersections in the plurality of color schemes.

[0006] In the above method, the plurality of color-matched enlarged intersection images include a first enlarged intersection image corresponding to daytime, a second enlarged intersection image corresponding to dawn or dusk, and a third enlarged intersection image corresponding to nighttime.

[0007] In the above method, the predetermined trigger position occurs at the second induction point, and the farthest map opening distance ranges from 200 meters to 1000 meters.

[0008] In the above method, the obtaining of the external environmental conditions of the intersection includes: obtaining the latitude and longitude and time of the vehicle's location from a cloud server.

[0009] In the above method, the step of obtaining the external environmental conditions of the intersection further includes: obtaining weather conditions at the location of the vehicle from the cloud server.

[0010] In the above method, according to the external environment conditions, an enlarged intersection image and a navigation map are selected from the enlarged intersection images of the plurality of color combinations. Figure 1 The display includes: determining the light intensity around the vehicle according to the latitude and longitude of the vehicle's location and the time, and selecting the enlarged intersection image corresponding to the light intensity from the enlarged intersection images of the multiple color matching colors and the navigation map. Figure 1 Start displaying.

[0011] In the above method, according to the external environment conditions, an enlarged intersection image and a navigation map are selected from the enlarged intersection images of the plurality of color combinations. Figure 1 The display includes: determining the light intensity around the vehicle according to the longitude and latitude of the vehicle's location and the time; and selecting the enlarged intersection image corresponding to the light intensity from the enlarged intersection images of the multiple color combinations.

[0012] According to another aspect of the present invention, a computer storage medium is provided, wherein the medium includes computer instructions, and when the computer instructions are executed, the aforementioned map display method is performed.

[0013] According to another aspect of the present invention, a device for map display is provided, the device comprising: a storage unit, the storage unit being used to pre-store multiple color-matched enlarged intersection images for a certain intersection; an acquisition unit being used to acquire the external environmental conditions of the vehicle when the vehicle reaches a predetermined trigger position close to the intersection; and a display unit being used to select an enlarged intersection image from the multiple color-matched enlarged intersection images according to the external environmental conditions and display the enlarged intersection image with the navigation map. Figure 1 The selected enlarged image of the intersection is displayed together, wherein the color scheme of the map is different from that of other enlarged images of the intersections in the plurality of color schemes.

[0014] In the above device, the multiple color-matched enlarged intersection images include a first enlarged intersection image corresponding to daytime, a second enlarged intersection image corresponding to dawn or dusk, and a third enlarged intersection image corresponding to nighttime.

[0015] In the above device, the predetermined trigger position occurs at the second induction point, and the farthest opening distance ranges from 200 meters to 1000 meters.

[0016] In the above device, the acquisition unit is configured to: acquire the latitude and longitude and time of the vehicle's location from the cloud server when the vehicle arrives at the predetermined trigger location.

[0017] In the above device, the acquisition unit is further configured to: acquire weather conditions at the location of the vehicle from the cloud server.

[0018] In the above device, the display unit is configured to: determine the light intensity around the vehicle according to the latitude and longitude of the vehicle's location and the time, and select the enlarged intersection image corresponding to the light intensity from the enlarged intersection images of the multiple color matching colors and the navigation map. Figure 1 Start displaying.

[0019] In the above device, the display unit is configured to: determine the light intensity around the vehicle according to the longitude and latitude of the vehicle's location and the time; and select the enlarged intersection image corresponding to the light intensity from the enlarged intersection images of the multiple color schemes.

[0020] According to yet another aspect of the present invention, a car is provided, comprising the device for map display as described above.

[0021] The technical solution of the present invention obtains the external environmental conditions of the vehicle and then selects an enlarged view of the intersection corresponding to the external environmental conditions, so that the user can see the intersection situation comfortably and clearly.

[0022] By incorporating the accompanying drawings and Figure 1 Other features and advantages of the method and apparatus of the present invention will become more clearly apparent or elucidated with reference to the specific embodiments used to illustrate certain principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram showing a navigation interface of an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram showing an enlarged view of an intersection according to an embodiment of the present invention;

[0025] Figure 3 is a flowchart of a method for map display according to an embodiment of the present invention; and

[0026] Figure 4 It is a schematic diagram showing the structure of a device for map display according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following description describes specific embodiments of the present invention to teach those skilled in the art how to make and use the best mode of the present invention. In order to teach the principles of the invention, some conventional aspects have been simplified or omitted. Those skilled in the art will appreciate that variations derived from these embodiments will fall within the scope of the present invention. Those skilled in the art will appreciate that the following features can be combined in various ways to form multiple variations of the present invention. Thus, the present invention is not limited to the following specific embodiments, but is limited only by the claims and their equivalents.

[0028] In the context of the present invention, the term "external environmental conditions" refers to the conditional elements in the vehicle's external environment that are associated with the map display. These conditional elements include, but are not limited to, the vehicle's geographical location (latitude and longitude), the time of day in the vehicle's area, weather conditions, etc.

[0029] In the context of the present invention, a maneuvering point refers to an intersection, a turn, a tunnel entrance, a toll booth, etc. Generally speaking, each maneuvering point will have at least three voice announcements. The term "second induction point" refers to the "second voice announcement" among the three voice announcements, that is, during the second voice announcement, an enlarged view of the intersection is displayed.

[0030] The term "farthest map opening distance" refers to the farthest distance between the vehicle and the intersection when the intersection zoomed-in map appears. For example, on a highway, the farthest map opening distance is 1000m. Even if the navigation makes a second voice announcement at 1500m, the intersection zoomed-in map will not be displayed at this time. The intersection zoomed-in map will be displayed when the vehicle reaches 1000m.

[0031] Generally speaking, the time in the area where the vehicle is located can be used to determine the lighting conditions outside the vehicle, and the lighting conditions will affect the map display (for example, the background color of the sky will change accordingly with the change of lighting conditions). For example, when the time in the area where the vehicle is located is determined to be 8 o'clock in the morning, it can be determined that the lighting conditions outside the vehicle are strong, and the background color of the sky in the map can be bright (such as sky blue or pure blue), but when the time in the area where the vehicle is located is determined to be 8 o'clock in the evening, it can be determined that the lighting conditions outside the vehicle are poor, and the background color of the sky is dark (such as gray or black). Those skilled in the art will understand that if the geographical location (latitude and longitude) and / or weather conditions of the vehicle are taken into consideration, more accurate lighting conditions can be obtained, which will in turn affect the display of the map.

[0032] Figure 1 is a schematic diagram showing a navigation interface of an embodiment of the present invention. Figure 1 In the navigation interface of , when the vehicle reaches the predetermined trigger position near the intersection, the navigation interface will change from displaying the navigation map alone to displaying the intersection zoomed-in image and the navigation interface at the same time. Figure 1As shown, the navigation map 110 is located in the lower middle part of the navigation interface, and the intersection magnified image 130 is located in the upper right side of the navigation interface, which provides the user with the information of the intersection ahead together with the navigation text 120. For the user, even if driving on a complex road section (including an intersection with multiple forks), by viewing the intersection magnified image 130, the user can quickly and clearly grasp the information of the intersection ahead and avoid going the wrong way.

[0033] Figure 2 A schematic diagram of an enlarged view of an intersection 130 is shown. Figure 2 In the enlarged view 130 of the intersection, the navigation route 131, the highway / viaduct 132 and 133, the ground / water surface 134 and 135, the distant building 136 and the sky background 137 are schematically shown. In one embodiment of the present invention, for an intersection, a plurality of color-matching enlarged views of the intersection are pre-set / stored. In one embodiment, the color of the navigation route 131 remains unchanged in the enlarged view of the intersection with multiple colors, while the colors of the highway / viaduct 132 and 133, the ground / water surface 134 and 135, the distant building 136 and the sky background 137 are different in different enlarged views of the intersection.

[0034] In one embodiment, for an intersection, three magnified images of the intersection are pre-set, namely, a daytime version, a morning and evening version, and a night version of the magnified image of the intersection (corresponding to different light intensities). For example, in the daytime version of the magnified image of the intersection, the color of the navigation route 131 is light green, the distant building 136 is light gray, and the sky background 137 is light blue. In the morning and evening version of the magnified image of the intersection, the color of the navigation route 131 is light green, the distant building 136 is light purple, and the sky background 137 is a gradient of gray-yellow. In the night version of the magnified image of the intersection, the color of the navigation route 131 is light green, the distant building 136 is gray-black, and the sky background 137 is a gradient of light gray.

[0035] It is understandable that various color schemes may be used to distinguish the enlarged intersection images of various colors.

[0036] Figure 3 FIG. 3 is a flow chart showing a method 3000 for map display according to an embodiment of the present invention. Figure 3 As shown, method 3000 includes the following steps:

[0037] In step 310, for an intersection, a plurality of color matching magnified intersection images are pre-set;

[0038] In step 320, when the vehicle reaches a predetermined trigger position close to the intersection, the external environmental conditions of the vehicle are obtained; and

[0039] In step 330, according to the external environment conditions, an enlarged intersection image and a navigation map are selected from the enlarged intersection images of the plurality of color combinations. Figure 1 The selected enlarged image of the intersection is displayed together, wherein the color scheme of the map is different from that of other enlarged images of the intersections in the plurality of color schemes.

[0040] In one embodiment, the multiple color-matched enlarged intersection images include a first enlarged intersection image corresponding to daytime, a second enlarged intersection image corresponding to dawn or dusk, and a third enlarged intersection image corresponding to nighttime.

[0041] In one embodiment, the predetermined trigger position is a predetermined distance away from the intersection, and the predetermined distance may be 100 meters, 120 meters, 200 meters, 500 meters or higher, depending on the needs.

[0042] In one embodiment, the predetermined trigger position occurs at the second induction point, and the range of the farthest map opening distance is 200 meters to 1000 meters. For example, the farthest map opening distance is shown in the following table:

[0043] Road Grade value The maximum distance to expand the image Level 0 highway 1000m Level 1, Level 2, expway, arterial, 300m Level 3, Level 4, Level 5, Level 6, Level 7, Level 8, Level 9 localMajor, local, localpath, localminor, poiConnector, other, bicyclelane 200 meters

[0044] In one embodiment, obtaining the external environmental conditions of the intersection in step 320 includes: obtaining the time and / or longitude and latitude and / or weather conditions of the vehicle's location from the cloud server. Generally speaking, the time of the area where the vehicle is located can be used to determine the lighting conditions outside the vehicle, and the lighting conditions will affect the map display (for example, the background color of the sky will change accordingly with the change of lighting conditions). For example, when it is determined that the time in the area where the vehicle is located is 8 o'clock in the morning, it can be determined that the lighting conditions outside the vehicle are strong, and the background color of the sky in the map can be bright (such as sky blue or pure blue), but when it is determined that the time in the area where the vehicle is located is 8 o'clock in the evening, it can be determined that the lighting conditions outside the vehicle are poor, and the background color of the sky is dark (such as gray or black). Those skilled in the art will understand that if the geographical location (longitude and latitude) and / or weather conditions of the vehicle are taken into consideration, more accurate lighting conditions can be obtained, which will in turn affect the display of the map.

[0045] In one embodiment, step 330 includes: determining the light intensity around the vehicle according to the latitude and longitude of the vehicle's location and the time, and selecting the intersection enlarged image corresponding to the light intensity from the multiple color-matched intersection enlarged images and the navigation map. Figure 1 Start displaying.

[0046] In another embodiment, step 330 includes: determining the light intensity around the vehicle according to the longitude and latitude of the vehicle's location and the time; and selecting the enlarged intersection image corresponding to the light intensity from the enlarged intersection images of the multiple color schemes.

[0047] Those skilled in the art will appreciate that the above-mentioned map display method can be provided as a computer program product. Therefore, the present invention can be in the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program codes.

[0048] According to another aspect of the present invention, a computer storage medium is provided, wherein the medium includes computer instructions, and when the computer instructions are executed, the map display method as described above is performed.

[0049] Figure 4 4 is a schematic diagram of a map display device 4000 according to an embodiment of the present invention. The device 4000 may include a storage unit 410, an acquisition unit 420, and a display unit 430. The storage unit 410 is used to pre-store multiple color-matched enlarged intersection images for a certain intersection. The acquisition unit 420 is used to acquire the external environmental conditions of the vehicle when the vehicle reaches a predetermined trigger position close to the intersection. The display unit 430 is used to select an enlarged intersection image from the multiple color-matched enlarged intersection images according to the external environmental conditions and display the enlarged intersection image with the navigation map. Figure 1 The selected enlarged image of the intersection is displayed together, wherein the color scheme of the map is different from that of other enlarged images of the intersections in the plurality of color schemes.

[0050] In one embodiment, the enlarged image of the intersection includes a first enlarged image of the intersection corresponding to daytime, a second enlarged image of the intersection corresponding to dawn or dusk, and a third enlarged image of the intersection corresponding to nighttime.

[0051] In one embodiment, the predetermined trigger position is a predetermined distance away from the intersection, and the predetermined distance may be 100 meters, 120 meters, 200 meters, 500 meters or higher, depending on different scenarios.

[0052] In one embodiment, the acquisition unit 420 is configured to: acquire the time and / or longitude and latitude and / or weather conditions of the vehicle's location from the cloud server when the vehicle arrives at the predetermined trigger position. Generally speaking, the time of the area where the vehicle is located can be used to determine the lighting conditions outside the vehicle, and the lighting conditions will affect the map display (for example, the background color of the sky will change accordingly with the change of lighting conditions). For example, when it is determined that the time in the area where the vehicle is located is 8 o'clock in the morning, it can be determined that the lighting conditions outside the vehicle are strong, and the background color of the sky in the map can be bright (such as sky blue or pure blue), but when it is determined that the time in the area where the vehicle is located is 8 o'clock in the evening, it can be determined that the lighting conditions outside the vehicle are poor, and the background color of the sky is dark (such as gray or black). Those skilled in the art will understand that if the geographical location (longitude and latitude) and / or weather conditions of the vehicle are taken into consideration, more accurate lighting conditions can be obtained, which will in turn affect the display of the map.

[0053] In one embodiment, the display unit 430 is configured to: determine the light intensity around the vehicle according to the latitude and longitude of the vehicle's location and the time, and select the enlarged intersection image corresponding to the light intensity from the enlarged intersection images of the multiple color matching colors and the navigation map. Figure 1 Start displaying.

[0054] In another embodiment, the display unit 430 is configured to: determine the light intensity around the vehicle according to the latitude and longitude of the vehicle's location and the time; and select the enlarged intersection image corresponding to the light intensity from the enlarged intersection images of the multiple color schemes.

[0055] In one embodiment, the aforementioned device for map display is integrated or included in a car.

[0056] When the vehicle approaches an intersection, the device will detect the surrounding lighting conditions and, based on parameters such as the vehicle's latitude and longitude and time, display a daytime version of the enlarged view of the intersection when it is daytime / when the light intensity is high; display a morning and evening version of the enlarged view of the intersection at dawn / dusk / when the lights are dim; and display a night version of the enlarged view of the intersection at night / darkness.

[0057] The above examples mainly illustrate the device and method for map display, computer storage medium and automobile of the present invention. Although only one or more embodiments of some of the present invention are described, it should be understood by those skilled in the art that the present invention can be implemented in many other forms without departing from its subject matter and scope. Therefore, the examples and embodiments shown are regarded as illustrative rather than restrictive, and the present invention may cover various modifications and substitutions without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A method for displaying a map, the method comprising: For an intersection, a plurality of color-matching magnified intersection images are pre-set, wherein the color of the navigation route remains unchanged in the magnified intersection images with the plurality of color-matchings, while the colors of the highway / viaduct, the ground / water surface, the distant building and the sky background are different in different magnified intersection images; When the vehicle reaches a predetermined trigger position close to the intersection, the external environmental conditions of the vehicle are obtained, and according to the external environmental conditions, an intersection enlarged image is selected from the multiple color-matched intersection enlarged images to be displayed together with the navigation map, so that the navigation interface changes from originally displaying only the navigation map to displaying the intersection enlarged image and the navigation map at the same time, Wherein, the predetermined trigger position is a predetermined distance away from the intersection, the selected enlarged image of the intersection is different from other enlarged images of the intersection in the plurality of color schemes in the color scheme of the map; and wherein, the enlarged image of the intersection together with the navigation text provides the user with information about the intersection ahead.

2. The method of claim 1, wherein: The multiple color-matching intersection magnified images include a first intersection magnified image corresponding to daytime, a second intersection magnified image corresponding to dawn or dusk, and a third intersection magnified image corresponding to nighttime.

3. The method of claim 1, wherein: The predetermined trigger position occurs at the second induction point, and the farthest map opening distance ranges from 200 meters to 1000 meters.

4. The method of claim 1, wherein: The obtaining of the external environment conditions of the intersection includes: Get the latitude, longitude and time of the vehicle's location from the cloud server.

5. The method of claim 4, wherein: The step of obtaining the external environment condition of the intersection further includes: The weather conditions at the location of the vehicle are obtained from the cloud server.

6. The method of claim 4, wherein: According to the external environment condition, selecting an enlarged intersection image from the enlarged intersection images of multiple color schemes to display together with the navigation map includes: Determine the light intensity around the vehicle according to the latitude and longitude of the vehicle's location and the time, and An enlarged intersection image corresponding to the illumination intensity is selected from the plurality of color-matched enlarged intersection images and displayed together with the navigation map.

7. The method of claim 5, wherein: According to the external environment condition, selecting an enlarged intersection image from the enlarged intersection images of multiple color schemes to display together with the navigation map includes: Determining the light intensity around the vehicle according to the latitude and longitude of the vehicle's location and the time; An enlarged intersection image corresponding to the illumination intensity is selected from the enlarged intersection images of the plurality of color combinations.

8. A computer storage medium, the medium comprising computer instructions, which, when executed, perform the map display method according to any one of claims 1 to 7.

9. A device for map display, the device comprising: A storage unit, the storage unit being used to pre-store multiple color-matching magnified images of the intersection for a certain intersection, wherein the color of the navigation route remains unchanged in the multiple color-matching magnified images of the intersection, while the colors of the highway / viaduct, the ground / water surface, the distant buildings and the sky background are different in different magnified images of the intersection; an acquisition unit, configured to acquire an external environmental condition of the vehicle when the vehicle reaches a predetermined trigger position close to the intersection, wherein the predetermined trigger position is a predetermined distance away from the intersection; and The display unit is used to select an enlarged intersection image from the multiple color-matched enlarged intersection images to display together with the navigation map according to the external environmental conditions, so that the navigation interface changes from originally displaying the navigation map alone to displaying the enlarged intersection image and the navigation map at the same time, wherein the selected enlarged intersection image is different from other enlarged intersection images in the multiple color-matched enlarged intersection images in the map color; and wherein the enlarged intersection image and the navigation text provide the user with the information of the intersection ahead.

10. The device of claim 9, wherein: The enlarged images of intersections with multiple color combinations include a first enlarged image of the intersection corresponding to daytime, a second enlarged image of the intersection corresponding to dawn or dusk, and a third enlarged image of the intersection corresponding to nighttime.

11. The device of claim 9, wherein: The predetermined trigger position occurs at the second induction point, and the farthest map opening distance ranges from 200 meters to 1000 meters.

12. The apparatus of claim 9, wherein: The acquisition unit is configured to acquire the latitude and longitude and time of the vehicle's location from a cloud server when the vehicle arrives at the predetermined trigger location.

13. The apparatus of claim 12, wherein: The acquisition unit is further configured to: The weather conditions at the location of the vehicle are obtained from the cloud server.

14. The apparatus of claim 12, wherein: The display unit is configured as follows: Determine the light intensity around the vehicle according to the latitude and longitude of the vehicle's location and the time, and An enlarged intersection image corresponding to the illumination intensity is selected from the enlarged intersection images of the plurality of color schemes and displayed together with the navigation map.

15. The apparatus of claim 12, wherein: The display unit is configured as follows: Determining the light intensity around the vehicle according to the latitude and longitude of the vehicle's location and the time; An enlarged intersection image corresponding to the illumination intensity is selected from the enlarged intersection images of the plurality of color combinations.

16. A car, comprising the device for map display according to any one of claims 9 to 15.

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