CN102003962A - Method for adjusting navigation map scale and navigation device - Google Patents
Method for adjusting navigation map scale and navigation device Download PDFInfo
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- CN102003962A CN102003962A CN 201010548919 CN201010548919A CN102003962A CN 102003962 A CN102003962 A CN 102003962A CN 201010548919 CN201010548919 CN 201010548919 CN 201010548919 A CN201010548919 A CN 201010548919A CN 102003962 A CN102003962 A CN 102003962A
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Abstract
The embodiment of the invention provides a method for adjusting a navigation map scale and a navigation device. Wherein the method comprises: acquiring the current position of a navigation device, and acquiring road condition information of the navigation device from a destination; setting path selection points to be displayed on a navigation map of the navigation device according to the acquired road condition information, wherein the path selection points comprise any one or more of corner points, lanes, traffic lights, one-way lanes, restricted lanes, crowded lanes and traffic control lanes; and according to the set path selection point and the scale of the navigation map on the navigation device at the current position of the vehicle, displaying the road condition information between the navigation device and the path selection point on the navigation map in a proper scale. By implementing the invention, the navigation map of the navigation device is automatically adjusted according to the needs of the user, and the inflexibility of manual operation of the user is avoided.
Description
Technical field
The present invention relates to navigation field, relate in particular to a kind of method and guider of adjusting the navigation map engineer's scale.
Background technology
Guider is used widely.In the prior art, guider shows electronic chart and path planning with fixing engineer's scale, but, when the user browses navigation map, often need to carry out universe or the part is browsed, therefore, need the user manually to click the amplification on the navigation map in the prior art or dwindle button, regulate electronic chart and switch between wide area and local map, such operation is dumb, and reaction is slow.
Application number is that 200810225066.5 Chinese patent discloses a kind of method of adjusting the navigation map engineer's scale according to Vehicle Speed, though it can realize adjusting automatically the navigation map engineer's scale, but the size of engineer's scale is subjected to the influence of travel speed, can not represent the user intuitively and wish the navigation map seen.
Summary of the invention
The fundamental purpose of the embodiment of the invention is, a kind of method and a kind of guider of adjusting the engineer's scale of navigation map is provided.Can adjust the navigation map of guider automatically according to user's needs, avoid the manually operated ineffective activity of user, and can represent the user intuitively and wish the navigation map seen.
In order to solve the technical matters of background technology, the embodiment of the invention provides the method for adjusting the navigation map engineer's scale, and it comprises:
Obtain the guider current location, and obtain the traffic information of described guider apart from the destination;
According to the described traffic information that obtains the routing point that the navigation map of described guider need show is set, described routing point comprises any one or more in corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road;
According to the routing point of described setting and the engineer's scale of the navigation map on the described guider of vehicle current location, so that described navigation map shows that with suitable ratio described guider is to the traffic information between the described routing point.
Preferable, when described routing point is in described corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road any, described according to the automatic engineer's scale of adjusting the navigation map on the described guider of described definite routing point, so that described navigation map shows that with suitable ratio described guider comprises to the traffic information between the described routing point:
Obtain the latitude and longitude information of the latitude and longitude information of described guider current location, described routing point and the dimension information of guider display screen;
Adjust the engineer's scale of navigation map on the described guider, so that described navigation map is presented at described guider in the range of size of described display screen to the traffic information between the described routing point with the ratio of maximum.
Preferable, when described selected element is described when turning to multiple in bend, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road, described method also comprises:
For being provided with engineer's scale, described multiple routing point adjusts priority level and weighting coefficient information;
Described according to the automatic engineer's scale of adjusting the navigation map on the described guider of described definite routing point, so that described navigation map shows that with suitable ratio described guider comprises to the traffic information between the described routing point:
Automatically adjust the engineer's scale of navigation map on the described guider according to the priority level of the routing point of setting and weighting coefficient according to priority mode from high to low, so that described navigation map shows that with suitable ratio described guider arrives the traffic information between the described routing point.
Further, described method also comprises:
When described guider is crossed described routing point, the navigation map of described guider is returned to the engineer's scale state of the nearest preservation before adjusting.
Preferable, describedly obtain the guider current location, and obtain the traffic information of described guider apart from the destination, further comprise:
According to the default time cycle, regularly obtain the guider current location, and obtain the traffic information of described guider apart from the destination.
Accordingly, the embodiment of the invention also provides a kind of guider, comprises
Receiver module is used to receive the relevant information of satellite system;
Display screen is used for the show navigator map;
In addition, it also comprises:
Acquisition module is used to obtain the current location of described guider, and obtains the traffic information of described guider apart from the destination;
Selected element is provided with module, be used for according to the traffic information that described acquisition module obtains the routing point that the navigation map of described guider need show being set, described routing point comprises any one or more in corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road;
Adjusting module, be used for according to the routing point of described setting and the engineer's scale of the navigation map on the described guider of vehicle current location, so that described navigation map shows that with suitable ratio described guider is to the traffic information between the described routing point.
Preferable, when described routing point was in described corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road any, described adjusting module comprised:
First acquisition module is used to obtain the latitude and longitude information of the latitude and longitude information of described guider current location, described routing point and the dimension information of guider display screen;
First adjusts submodule, be used for the information obtained according to described first acquisition module, adjust the engineer's scale of navigation map on the described guider, so that described navigation map is presented at described guider in the range of size of described display screen to the traffic information between the described routing point with the ratio of maximum.
Preferable, when described selected element is described when turning to multiple in bend, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road, described adjusting module comprises:
Adjust pretreatment module, be used to described multiple routing point that engineer's scale is set and adjust priority level and weighting coefficient information;
Second adjusts submodule, be used for adjusting the engineer's scale of navigation map on the described guider automatically according to priority mode from high to low, so that described navigation map shows that with suitable ratio described guider arrives the traffic information between the described routing point according to the priority level of the routing point of setting and weighting coefficient.
Further, this device also comprises:
Memory module is used to store historical scale number certificate;
Engineer's scale recovers module, is used for the navigation map of described guider being returned to the engineer's scale state of the preceding nearest preservation of adjustment when described guider is crossed described routing point.
Preferable, described guider also comprises:
Timing module is used to calculate described acquisition module and regularly obtains the guider current location, and obtains the time cycle of described guider apart from the traffic information of destination.
Implement the embodiment of the invention, have following beneficial effect:
The method and the guider of the adjustment navigation map engineer's scale that the embodiment of the invention provides, put automatic resize ratio chi according to the routing that the user sets, can adjust the navigation map of guider automatically according to user's needs, avoid the manually operated ineffective activity of user.In addition, the application's technical scheme is directly to represent routing point that the user is provided with and the traffic information between the guider current location, and it can represent the user intuitively and wish the navigation map seen.
Description of drawings
Fig. 1 is an embodiment schematic flow sheet of the method for adjustment navigation map engineer's scale of the present invention;
Fig. 2 is another embodiment schematic flow sheet of the method for adjustment navigation map engineer's scale of the present invention;
Fig. 3 is that an example structure of guider of the present invention is formed synoptic diagram;
Fig. 4 is that first example structure of adjusting module among Fig. 3 is formed synoptic diagram;
Fig. 5 is that second example structure of adjusting module among Fig. 3 is formed synoptic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of method of adjusting the navigation map engineer's scale, comprising: obtain the guider current location, and obtain the traffic information of described guider apart from the destination; According to the described traffic information that obtains the routing point that the navigation map of described guider need show is set, described routing point comprises any one or more in corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road; According to the routing point of described setting and the engineer's scale of the navigation map on the described guider of vehicle current location, so that described navigation map shows that with suitable ratio described guider is to the traffic information between the described routing point.The method of the adjustment navigation map engineer's scale that the embodiment of the invention provides is put automatic resize ratio chi according to the routing of setting, and can adjust the navigation map of guider automatically according to user's needs, avoids the manually operated ineffective activity of user.
Below in conjunction with Fig. 1-Fig. 2 the specific embodiment of the method for adjustment navigation map engineer's scale of the present invention is described.
Fig. 1 is the schematic flow sheet of an embodiment of the method for adjustment navigation map engineer's scale of the present invention.As shown in Figure 1, the method for present embodiment comprises:
Step S110 obtains the guider current location, and obtains the traffic information of described guider apart from the destination.
In the specific implementation; when opening guider; guider can show a navigation map with a fixed proportion chi usually; and the current current location on map of guider is shown; after the user selected your destination on described navigation map, guider will provide one by the routing information (such as the path that with complete trails show current location and destination) of current location to the destination for the user.Step S110 did normally carries out under the situation that the user has selected your destination.Concrete, described guider apart from the traffic information of destination can comprise whether number of track-lines, the track of the road that whether distance has traffic lights in the distance, the distance that arrives the individual crossing of n (n is more than or equal to 1) down, path of the individual corner point of n (n is more than or equal to 1) down, travel are one-way roads, whether the individual crossing of n (n is more than or equal to 1) has driving restriction, road congested conditions, whether traffic control or the like information is arranged down.
Step S112 is provided with the routing point that the navigation map of described guider need show according to the described traffic information that obtains.
In the specific implementation, described routing point comprises any in corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road.Such as, among the path of destination, corner point is arranged when getting access to the guider current location at step S110, therefore, at step S112 the nearest corner point of distance navigation device can be set is the routing point.For another example, when get access to the guider current location at step S110 the highway section of traffic control is arranged among the path of destination, and it is just in the not far part of guider, therefore, the highway section that described traffic control can be set at step S112 is the routing point.
In the specific implementation, step S112 can regularly carry out according to the default time cycle.
Step S114 obtains the latitude and longitude information of the latitude and longitude information of described guider current location, described routing point and the dimension information of guider display screen.
In the specific implementation, the demonstration of the selected element on the navigation map can realize in the following way, at first obtain the latitude and longitude coordinates of described selected element, convert described latitude and longitude coordinates to screen coordinate then, at last described screen coordinate is shown on described navigation map.
Step S116 adjusts the engineer's scale of navigation map on the described guider, so that described navigation map is presented at described guider in the range of size of described display screen to the traffic information between the described routing point with the ratio of maximum.
In the specific implementation, can get access to the latitude and longitude information of the longitude and latitude and the routing point of guider current location via satellite, and the size of guider display screen is normally fixing, and the information of obtaining by step S114 at the step S116 engineer's scale of adjusting navigation map automatically gets final product like this.Such as, during adjustment, the guider current location can be corresponded to the lower left corner of display screen, the routing point corresponds to the upper right corner of display screen, but thus maximum ratio ground display navigation apparatus current location to the traffic information of routing point.For another example, during adjustment, the guider current location can be corresponded to the centre of display screen, the routing point corresponds to the upper right corner of display screen, thus can be with the traffic information of maximum ratio ground display navigation apparatus current location to routing point in the scope of determining.
Fig. 2 is another embodiment schematic flow sheet of the method for adjustment navigation map engineer's scale of the present invention.The method of present embodiment comprises as shown in Figure 2:
Step S210 obtains the guider current location, and obtains the traffic information of described guider apart from the destination.This step is identical with step S110 shown in Figure 1, does not give unnecessary details at this.
Step S212 is provided with the routing point that the navigation map of described guider need show according to the described traffic information that obtains.In the specific implementation, described routing point turns to multiple in bend, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road for described.Such as, the number of track-lines of the road that the extension angle point and the vehicle at the nearest place of distance navigation device current location can be about to enter is as the routing point.
Step S214 adjusts priority level and weighting coefficient information for described multiple routing point is provided with engineer's scale.
Step S216, automatically adjust the engineer's scale of navigation map on the described guider according to the priority level of the routing point of setting and weighting coefficient according to priority mode from high to low, so that described navigation map shows that with suitable ratio described guider arrives the traffic information between the described routing point.
In the specific implementation, can be at first adjust the engineer's scale of navigation map at step S216, so that described navigation map shows the traffic information of described guider to the highest routing point of described priority with maximum ratio according to the highest routing point of priority.On this basis, according to the weighting coefficient of time high routing point of priority and described selected element the engineer's scale of above-mentioned maximum ratio chi is carried out part adjustment again so that described navigation map with the described inferior high routing point of the engineer's scale demonstration that meets described weighting coefficient to the traffic information between the guider.How according to the mode of the resize ratio chi of the routing point of follow-up priority, the mode that can take with reference to above-mentioned high routing point is not given unnecessary details at this.
Step S218 when described guider is crossed described routing point, returns to the navigation map of described guider the engineer's scale state of the nearest preservation before adjusting.
Execution in step S218 can make things convenient for guider to carry out the adjustment of engineer's scale in real time fast according to user's different choice.
Accordingly, the embodiment of the invention also provides a kind of guider, and this guider can be placed on the vehicles such as automobile, carries out automobile navigation, also can be placed on the portable terminal such as mobile phone, carries out the navigation of user's track route.
As shown in Figure 3, the guider that the embodiment of the invention provides comprises: receiver module 30, display screen 31, acquisition module 32, selected element are provided with module 33 and adjusting module 34, wherein:
Described receiver module 30 is used to receive the relevant information of satellite system.
Described display screen 31 is used for the show navigator map.
Described acquisition module 32 is used to obtain the current location of described guider, and obtains the traffic information of described guider apart from the destination.In the specific implementation; when opening guider; the receiver module of guider can be after the satellite system received signal; the display screen of guider can show a navigation map with a fixed proportion chi usually; and the current current location on map of guider is shown; after the user selected your destination on described navigation map, guider will provide one by the routing information of current location to the destination for the user.Acquisition module 32 is done normally carries out under the situation that the user has selected your destination.Concrete, described guider apart from the traffic information of destination can comprise whether number of track-lines, the track of the road that whether distance has traffic lights in the distance, the distance that arrives the individual crossing of n (n is more than or equal to 1) down, path of the individual corner point of n (n is more than or equal to 1) down, travel are one-way roads, whether the individual crossing of n (n is more than or equal to 1) has driving restriction, road congested conditions, whether traffic control or the like information is arranged down.
Described selected element is provided with module 33, is used for according to the traffic information that described acquisition module 32 obtains the routing point that the navigation map of described guider need show being set.
In the specific implementation, described routing point comprises any one or more in corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road.
Described adjusting module 34, be used for the automatic engineer's scale of adjusting the navigation map on the described guider of routing point that module 33 is provided with being set, so that described navigation map shows that with suitable ratio described guider is to the traffic information between the described routing point according to described.
As previously mentioned, selected element is provided with module 33 when routing point is set, and the routing of its setting point comprises any one or more in corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road.
When described routing point comprised in corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road any, adjusting module 34 further comprises structure as shown in Figure 4, and was concrete, as shown in Figure 4:
Described first acquisition module 341 is used to obtain the latitude and longitude information of the latitude and longitude information of described guider current location, described routing point and the dimension information of guider display screen.Concrete, get access to the latitude and longitude information of guider current location, the latitude and longitude information of described routing point in the relevant information that described first acquisition module 341 can receive from receiver module 30, the dimension information of the display screen that can get access to according to the guider internal storage information.
First adjusts submodule 343, be used for the information obtained according to described first acquisition module 341, adjust the engineer's scale of navigation map on the described guider, so that described navigation map is presented at described guider in the range of size of described display screen to the traffic information between the described routing point with the ratio of maximum.Such as, during adjustment, the guider current location can be corresponded to the lower left corner of display screen, the routing point corresponds to the upper right corner of display screen, but thus maximum ratio ground display navigation apparatus current location to the traffic information of routing point.For another example, during adjustment, the guider current location can be corresponded to the centre of display screen, the routing point corresponds to the upper right corner of display screen, thus can be with the traffic information of maximum ratio ground display navigation apparatus current location to routing point in the scope of determining.
When described routing point for described when turning to multiple in bend, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road, adjusting module 34 further comprises structure as shown in Figure 5, and is concrete, as shown in Figure 5:
Described adjustment pretreatment module 344 is used to described multiple routing point that engineer's scale is set and adjusts priority level and weighting coefficient information.
Second adjusts submodule 346, automatically adjust the engineer's scale of navigation map on the described guider according to the priority level of the routing point of setting and weighting coefficient according to priority mode from high to low, so that described navigation map shows that with suitable ratio described guider arrives the traffic information between the described routing point.
In the specific implementation, described second adjusts submodule 345 can at first be adjusted navigation map according to the highest routing point of priority engineer's scale, so that described navigation map shows the traffic information of described guider to the highest routing point of described priority with maximum ratio.On this basis, according to the weighting coefficient of time high routing point of priority and described selected element the engineer's scale of above-mentioned maximum ratio chi is carried out part adjustment again so that described navigation map with the described inferior high routing point of the engineer's scale demonstration that meets described weighting coefficient to the traffic information between the guider.How according to the mode of the resize ratio chi of the routing point of follow-up priority, the mode that can take with reference to above-mentioned high routing point is not given unnecessary details at this.
In addition, in other embodiment of guider of the present invention, also can comprise:
Memory module (not shown) is used to store historical scale number certificate.
Engineer's scale recovers module (not shown), is used for the navigation map of described guider being returned to the engineer's scale state of the preceding nearest preservation of adjustment when described guider is crossed described routing point.
In addition, in other embodiment of guider of the present invention, also can comprise:
Timing module is used to calculate described acquisition module and regularly obtains the guider current location, and obtains the time cycle of described guider apart from the traffic information of destination.
Above disclosed only is preferred embodiment of the present invention, certainly can not limit the present invention's interest field with this, one of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description, and, still belong to the scope that invention is contained according to the equivalent variations that claim of the present invention is done.
Claims (10)
1. a method of adjusting the navigation map engineer's scale is characterized in that, comprising:
Obtain the guider current location, and obtain the traffic information of described guider apart from the destination;
According to the described traffic information that obtains the routing point that the navigation map of described guider need show is set, described routing point comprises any one or more in corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road;
According to the routing point and the automatic engineer's scale of adjusting the navigation map on the described guider of vehicle current location of described setting, so that described navigation map shows that with suitable ratio described guider is to the traffic information between the described routing point.
2. the method for adjustment navigation map engineer's scale as claimed in claim 1, it is characterized in that, when described routing point is in described corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road any, described according to the automatic engineer's scale of adjusting the navigation map on the described guider of described definite routing point, so that described navigation map shows that with suitable ratio described guider comprises to the traffic information between the described routing point:
Obtain the latitude and longitude information of the latitude and longitude information of described guider current location, described routing point and the dimension information of guider display screen;
Adjust the engineer's scale of navigation map on the described guider, so that described navigation map is presented at described guider in the range of size of described display screen to the traffic information between the described routing point with the ratio of maximum.
3. the method for adjustment navigation map engineer's scale as claimed in claim 1 is characterized in that, when described selected element is described when turning to multiple in bend, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road, described method also comprises:
For being provided with engineer's scale, described multiple routing point adjusts priority level and weighting coefficient information;
Described according to the automatic engineer's scale of adjusting the navigation map on the described guider of described definite routing point, so that described navigation map shows that with suitable ratio described guider comprises to the traffic information between the described routing point:
Automatically adjust the engineer's scale of navigation map on the described guider according to the priority level of the routing point of setting and weighting coefficient according to priority mode from high to low, so that described navigation map shows that with suitable ratio described guider arrives the traffic information between the described routing point.
4. as the method for each described adjustment navigation map engineer's scale among the claim 1-3, it is characterized in that described method also comprises:
When described guider is crossed described routing point, the navigation map of described guider is returned to the engineer's scale state of the nearest preservation before adjusting.
5. as the method for each described adjustment navigation map engineer's scale among the claim 1-3, it is characterized in that, describedly obtain the guider current location, and obtain the traffic information of described guider, further comprise apart from the destination:
According to the default time cycle, regularly obtain the guider current location, and obtain the traffic information of described guider apart from the destination.
6. a guider comprises
Receiver module is used to receive the relevant information of satellite system;
Display screen is used for the show navigator map;
It is characterized in that, also comprise:
Acquisition module is used to obtain the current location of described guider, and obtains the traffic information of described guider apart from the destination;
Selected element is provided with module, be used for according to the traffic information that described acquisition module obtains the routing point that the navigation map of described guider need show being set, described routing point comprises any one or more in corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road;
Adjusting module, be used for according to the routing point of described setting and the engineer's scale of the navigation map on the described guider of vehicle current location, so that described navigation map shows that with suitable ratio described guider is to the traffic information between the described routing point.
7. guider as claimed in claim 6 is characterized in that, when described routing point was in described corner point, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road any, described adjusting module comprised:
First acquisition module is used to obtain the latitude and longitude information of the latitude and longitude information of described guider current location, described routing point and the dimension information of guider display screen;
First adjusts submodule, be used for the information obtained according to described first acquisition module, adjust the engineer's scale of navigation map on the described guider, so that described navigation map is presented at described guider in the range of size of described display screen to the traffic information between the described routing point with the ratio of maximum.
8. guider as claimed in claim 6 is characterized in that, when described selected element is described when turning to multiple in bend, track, traffic lights, one-way road, restricted driving road, crowded road, the traffic control road, described adjusting module comprises:
Adjust pretreatment module, be used to described multiple routing point that engineer's scale is set and adjust priority level and weighting coefficient information;
Second adjusts submodule, automatically adjust the engineer's scale of navigation map on the described guider according to the priority level of the routing point of setting and weighting coefficient according to priority mode from high to low, so that described navigation map shows that with suitable ratio described guider arrives the traffic information between the described routing point.
9. as each described guider among the claim 6-8, it is characterized in that, also comprise:
Memory module is used to store historical scale number certificate;
Engineer's scale recovers module, is used for the navigation map of described guider being returned to the engineer's scale state of the preceding nearest preservation of adjustment when described guider is crossed described routing point.
10. as each described guider among the claim 6-8, it is characterized in that, also comprise:
Timing module is used to calculate described acquisition module and regularly obtains the guider current location, and obtains the time cycle of described guider apart from the traffic information of destination.
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| CN103063219A (en) * | 2012-12-21 | 2013-04-24 | 清华大学 | Method for navigation electronic map pretreatment and display |
| CN103823828A (en) * | 2013-10-31 | 2014-05-28 | 小米科技有限责任公司 | Map scale setting method, map scale setting device and terminal |
| CN106210094A (en) * | 2016-07-19 | 2016-12-07 | 腾讯科技（深圳）有限公司 | Periphery focus road conditions methods of exhibiting, the first client, service end and system |
| CN106210094B (en) * | 2016-07-19 | 2019-08-13 | 腾讯科技（深圳）有限公司 | Periphery hot spot road conditions methods of exhibiting, the first client, server-side and system |
| CN110081899A (en) * | 2018-01-26 | 2019-08-02 | 深圳市凯立德科技股份有限公司 | A kind of high-precision electronic map road conditions display methods and device |
| CN110874951A (en) * | 2018-08-31 | 2020-03-10 | 高德信息技术有限公司 | Road condition rendering method, device, equipment and medium |
| CN110874951B (en) * | 2018-08-31 | 2023-03-14 | 阿里巴巴（中国）有限公司 | Road condition rendering method, device, equipment and medium |
| CN109764890A (en) * | 2019-01-31 | 2019-05-17 | 北京蓦然认知科技有限公司 | A kind of method and device that adjustment navigation map is shown |
| CN109764890B (en) * | 2019-01-31 | 2020-07-03 | 北京蓦然认知科技有限公司 | Method and device for adjusting navigation map display |
| CN111664862A (en) * | 2019-03-06 | 2020-09-15 | 北京嘀嘀无限科技发展有限公司 | Display scale adjusting method and system |
| CN111664862B (en) * | 2019-03-06 | 2022-07-26 | 北京嘀嘀无限科技发展有限公司 | Display scale adjusting method and system |
| CN117076593A (en) * | 2023-10-18 | 2023-11-17 | 中微智创(北京)软件技术有限公司 | Dynamic target track multistage construction and storage method based on memory database |
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