CN102566869A - Method and system for automatically scaling display scale of navigation map - Google Patents
Method and system for automatically scaling display scale of navigation map Download PDFInfo
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Abstract
The invention discloses a method and a system for automatically scaling a display scale of a navigation map. The method at least comprises the following steps of: obtaining the current position of a vehicle; judging whether the vehicle is close to a complex crossroad or not according to the current position of the vehicle; if so, displaying a current map in terms of a first display proportional scale; if not, obtaining the current speed of the vehicle; searching a proportional scale corresponding to the current speed as a second display proportional scale; and displaying the current map in terms of the second display proportional scale. The system comprises a positioning unit, a judging unit, a speed measuring unit, a storing unit, a searching unit and a drawing unit. When the vehicle is close to the complex crossroad, the current map can be automatically adjusted and is displayed in terms of the first display proportional scale, and the current map can be automatically adjusted and is displayed in terms of the second display proportional scale corresponding to the current speed of the vehicle when the vehicle is not close to the complex crossroad. According to the method and the system, disclosed by the invention, the purpose of automatically scaling the display scale of the navigation map can be achieved under different conditions, the observation is convenient for the user, and the user does not need to operate repeatedly.
Description
Technical field
The present invention relates to navigation field, be meant a kind of auto zoom method and system of navigation map displaying ratio especially.
Background technology
Universal day by day along with automobile, the vehicle mounted guidance technology has also obtained development fast thereupon.The engineer's scale of common navigation software general map in the process of navigation is fixed, with convenient guiding.And the zoom function of navigation map need be operated through the user basically and triggers realization.
Usually when bigger variation took place the speed of automobile, the user possibly need different maps to show experience.Such as when the speed of a motor vehicle is slow, the user needs the engineer's scale of map to amplify, conveniently to see road conditions and point of interest (Point of Interest, the POI) information on next door, own parking stall clearly; When the speed of a motor vehicle was very fast, the user needed the engineer's scale of map to dwindle, to see more information of overall importance.
Simultaneously, when through complex crossing the time, the user need amplify current engineer's scale more to clearly illustrate current crossing situation; And having crossed complex crossing, the user needs the engineer's scale of map to dwindle, to see more information of overall importance.
But user's both hands in the process of driving are inconvenient to operate, even the user can operate, when carrying out the map convergent-divergent, the user need operate, and is cumbersome at every turn.
Therefore, how under condition of different, carry out the auto zoom of the engineer's scale of navigation map, become the problem of needing solution badly.
Summary of the invention
What the present invention solved is, how under different situations, auto zoom navigation map displaying ratio, watch to make things convenient for the user, and need not the problem of user's repeatable operation.
For addressing the above problem, the present invention provides a kind of auto zoom method of navigation map displaying ratio, comprises at least:
Obtain the vehicle current location;
Judge that according to the vehicle current location whether vehicle is near complex crossing;
If show current map with the first displaying ratio chi;
If not, obtain the vehicle present speed; The engineer's scale of searching corresponding present speed is as the second displaying ratio chi; Show current map with the said second displaying ratio chi.
Optional, search through the speed engineer's scale table of comparisons obtain corresponding present speed engineer's scale as the second displaying ratio chi.
Optional, said complex crossing is for to confirm to draw according to filling information.
Optional, said filling information is the information of each point between starting point and destination in the navigation path planning.
Optional, said complex crossing is that working direction can't be through the crossing of the turn left prompting or the prompting channeling conduct of turning right.
Optional, the said vehicle present speed that obtains comprises: (Controller Area Network, CAN) bus is obtained the vehicle present speed to the controller local area network through vehicle.
Optional, the said vehicle present speed that obtains comprises: 2 longitudes and latitudes that obtain through navigation software draw the distance of point-to-point transmission, again with this distance divided by through the resulting result of time of these 2 costs as the vehicle present speed that obtains.
Optional, the said speed engineer's scale table of comparisons obtains for being provided with according to the user.
Optional, the current map of said demonstration comprises interest point information.
Optional, said point of interest classification is searched according to said first displaying ratio chi or the said second displaying ratio chi and is obtained.
Optional, said point of interest classification is to search through the speed engineer's scale table of comparisons to obtain.
Optional, larger proportion chi correspondence comprises more multi-class point of interest in the said engineer's scale point of interest classification table of comparisons.
Optional, the said engineer's scale point of interest classification table of comparisons obtains for being provided with according to the user.
The present invention also provides a kind of auto zoom system of navigation map displaying ratio, comprising:
Positioning unit is used to obtain the current location of vehicle;
Judging unit is connected with said positioning unit, is used for whether judging vehicle near complex crossing according to said current location, if then produce the first displaying ratio chi;
The unit that tests the speed is used to obtain the present speed of vehicle;
Storage unit is used to store the corresponding relation between friction speed and engineer's scale;
Query unit links to each other with said unit and the said storage unit of testing the speed, and is used for according to said present speed, and the engineer's scale of from said storage unit, searching corresponding present speed is as the second displaying ratio chi;
The drawing unit links to each other with said judging unit and said query unit, is used for drawing out current map according to said first displaying ratio chi or the said second displaying ratio chi, and said first displaying ratio has precedence over the said second displaying ratio chi.
Optional, also comprise definite unit, link to each other with said judging unit, said definite unit is used for confirming to draw complex crossing according to filling information, and said filling information is the information of each point between starting point and destination in the navigation path planning.
Optional, said complex crossing is that working direction can't be through the crossing of the turn left prompting or the prompting channeling conduct of turning right.
Optional, the said unit that tests the speed links to each other with controller local area network's bus of vehicle, obtains the vehicle present speed through said controller local area network bus.
Optional, the said unit that tests the speed obtains the distance that 2 longitudes and latitudes draw point-to-point transmission from navigation software, again with this distance divided by through the resulting result of time of these 2 costs as the vehicle present speed that obtains.
Optional, store the speed engineer's scale table of comparisons in the said storage unit.
Optional, also comprise first user input unit, be used to import the said speed engineer's scale table of comparisons.
Optional, said current map comprises interest point information, said query unit is searched the classification that obtains said point of interest according to said first displaying ratio chi or the said second displaying ratio chi.
Optional, store the engineer's scale point of interest classification table of comparisons in the said storage unit.
Optional, larger proportion chi correspondence comprises more multi-class point of interest in the said engineer's scale point of interest classification table of comparisons.
Optional, also comprise second user input unit, be used to import the said engineer's scale point of interest classification table of comparisons.
Compared with prior art, adopt the auto zoom method and system of navigation map displaying ratio of the present invention, have the following advantages:
When vehicle was near complex crossing, promptly the current map of adjustment showed with the first displaying ratio chi automatically, and in not near complex crossing, then the current map of adjustment shows with the second corresponding displaying ratio chi of vehicle present speed automatically.Under different situations, can reach auto zoom navigation map displaying ratio, make things convenient for the user to watch, and need not user's repeatable operation.
Description of drawings
Fig. 1 is the auto zoom method preferred embodiment process flow diagram of navigation map displaying ratio of the present invention;
Fig. 2 is the auto zoom system first embodiment module map of navigation map displaying ratio of the present invention;
Fig. 3 is the auto zoom system second embodiment module map of navigation map displaying ratio of the present invention.
Embodiment
Said as the background technology part, prior art is when carrying out convergent-divergent to navigation map, and the user need operate, and is cumbersome.
For make above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, promptly combines accompanying drawing and embodiment specific embodiments of the invention to do detailed explanation below.
Set forth a lot of details in the following description so that make much of the present invention, implement but the present invention can also adopt other to be different from alternate manner described here, so the present invention has not received the restriction of following disclosed specific embodiment.
See also Fig. 1, Fig. 1 is the auto zoom method preferred embodiment process flow diagram of navigation map displaying ratio of the present invention.For addressing the above problem, the present invention provides a kind of auto zoom method of navigation map displaying ratio, in present embodiment, comprising:
Step S1: obtain the vehicle current location;
Step S2: judge that according to the vehicle current location whether vehicle is near complex crossing;
If then carry out step S3: show current map with the first displaying ratio chi;
If not, then carry out step S4: obtain the vehicle present speed; Step S5: the engineer's scale of searching corresponding present speed is as the second displaying ratio chi; Step S6: show current map with the said second displaying ratio chi.
Pass through said method; When vehicle is near complex crossing; Promptly the current map of adjustment shows with the first displaying ratio chi automatically, and in not near complex crossing, then the current map of adjustment shows with the second corresponding displaying ratio chi of vehicle present speed automatically.Under different situations, can reach auto zoom navigation map displaying ratio, make things convenient for the user to watch, and need not user's repeatable operation.
Here, said step S5 be through the speed engineer's scale table of comparisons search obtain corresponding present speed engineer's scale as the second displaying ratio chi.Certainly, be example with the speed engineer's scale table of comparisons, but not as limit, also can search through the mapping relations of other speed and engineer's scale.
Here, generally speaking, the said speed engineer's scale table of comparisons is preset table.Certainly, the said speed engineer's scale table of comparisons also can obtain for being provided with according to the user, thereby can make things convenient for the user to be arranged under the different speed of a motor vehicle with the second displaying ratio chi displayed map according to the demand of oneself.
Here, the said complex crossing among the said step S2 is for to confirm to draw according to filling information; Said filling information is the information of each point between starting point and destination in the navigation path planning; Certainly, said complex crossing can can't be judged definite through the crossing of the turn left prompting or the prompting channeling conduct of turning right for working direction according to this.
Here, for step S4, the said vehicle present speed that obtains can be for comprising step: the controller local area network's bus through vehicle is obtained the vehicle present speed.Thereby can from the control system of vehicle itself, can obtain the present speed of vehicle, simultaneously, accessed vehicle present speed is more accurate.
Here; For step S4; The said vehicle present speed that obtains also can be for comprising step: 2 longitudes and latitudes that obtain through navigation software draw the distance of point-to-point transmission, again with this distance divided by through the resulting result of time of these 2 costs as the vehicle present speed that obtains.Can obtain the vehicle present speed from navigation software itself thereby need not be connected with the control system of vehicle itself, obtain more conveniently, and the change on the hardware is littler.
Here, the current map of said demonstration comprises interest point information.Said point of interest classification is searched according to said first displaying ratio chi or the said second displaying ratio chi and is obtained.When said current map is when showing with the first displaying ratio chi, said point of interest classification is searched according to the said first displaying ratio chi and is obtained; When said current map is when showing with the second displaying ratio chi, said point of interest classification is searched according to the said second displaying ratio chi and is obtained.
Here, said point of interest classification is that the passing ratio chi point of interest classification table of comparisons is searched and obtained.Certainly, be example with the speed engineer's scale table of comparisons, but not as limit, also can search through the mapping relations of other speed and engineer's scale.
Here, larger proportion chi correspondence comprises more multi-class point of interest in the said engineer's scale point of interest classification table of comparisons.For example, minimum engineer's scale can show the point of interest of 30 classifications, and maximum engineer's scale can show the point of interest of 80 classifications.
Here, generally speaking, the said engineer's scale point of interest classification table of comparisons is preset table.Certainly, the said engineer's scale point of interest classification table of comparisons also can obtain for being provided with according to the user, thereby can make things convenient for the user to be arranged under the different proportion chi with corresponding point of interest classification displayed map according to the demand of oneself.
See also Fig. 2, Fig. 2 is the auto zoom system first embodiment module map of navigation map displaying ratio of the present invention.The present invention also provides a kind of auto zoom system of navigation map displaying ratio, comprising:
Positioning unit 10 is used to obtain the current location of vehicle;
Judging unit 20 is connected with said positioning unit 10, is used for whether judging vehicle near complex crossing according to said current location, if then produce the first displaying ratio chi;
The unit 30 that tests the speed is used to obtain the present speed of vehicle;
Drawing unit 60 links to each other with said judging unit 20 and said query unit 50, is used for drawing out current map according to said first displaying ratio chi or the said second displaying ratio chi, and said first displaying ratio has precedence over the said second displaying ratio chi.
Through said system, said judging unit 20 judges that according to the vehicle current location that said positioning unit 10 obtains when vehicle was near complex crossing, said drawing unit 60 was promptly adjusted current map automatically and shown with the first displaying ratio chi.And in not near complex crossing; Said query unit 50 is searched in said storage unit 40 according to the said unit 30 resulting present speeds that test the speed and is obtained the second displaying ratio chi, and 60 of said drawing unit are adjusted current map automatically and shown with the second corresponding displaying ratio chi of vehicle present speed.Thereby under different situations, can reach auto zoom navigation map displaying ratio, make things convenient for the user to watch, and need not user's repeatable operation.
Here, said complex crossing is that working direction can't be through the crossing of the turn left prompting or the prompting channeling conduct of turning right.Certainly, said complex crossing also can define according to Else Rule.
Here, the said unit 30 that tests the speed can obtain the vehicle present speed through said controller local area network bus for linking to each other with controller local area network's bus of vehicle.Thereby can from the control system of vehicle itself, can obtain the present speed of vehicle, simultaneously, accessed vehicle present speed is more accurate.
Here, the said unit 30 that tests the speed also can be for obtaining the distance that 2 longitudes and latitudes draw point-to-point transmission from navigation software, again with this distance divided by through the resulting result of time of these 2 costs as the vehicle present speed that obtains.Can obtain the vehicle present speed from navigation software itself thereby need not be connected with the control system of vehicle itself, obtain more conveniently, and the change on the hardware is littler.
Store the speed engineer's scale table of comparisons in the said storage unit 40 here; Said query unit 50 is according to said present speed, and the seek rate engineer's scale table of comparisons draws the said second displaying ratio chi from said storage unit 40.Certainly, be example with the speed engineer's scale table of comparisons, but not as limit, also can otherwise store the mapping relations of other speed and engineer's scale in the said storage unit 40.
Here, said current map comprises interest point information, and said query unit 50 is searched the classification that obtains said point of interest according to said first displaying ratio chi or the said second displaying ratio chi.When said current map is when showing with the first displaying ratio chi, said query unit 50 is searched according to the said first displaying ratio chi and is obtained said point of interest classification; When said current map is when showing with the second displaying ratio chi, said query unit 50 is searched according to the said second displaying ratio chi and is obtained said point of interest classification.
Here, said point of interest classification is that the passing ratio chi point of interest classification table of comparisons is searched and obtained.Certainly, be example with the speed engineer's scale table of comparisons, but not as limit, also can search through the mapping relations of other speed and engineer's scale.
Store the engineer's scale point of interest classification table of comparisons in the said storage unit 40 here; Said query unit 50 is the engineer's scales according to current map, from said storage unit 40, searches the engineer's scale point of interest classification table of comparisons and draws said point of interest classification.Certainly, be example with the engineer's scale point of interest classification table of comparisons, but not as limit, also can otherwise store the mapping relations of other speed and engineer's scale in the said storage unit 40.
Here, larger proportion chi correspondence comprises more multi-class point of interest in the said engineer's scale point of interest classification table of comparisons.For example, minimum engineer's scale can show the point of interest of 30 classifications, and maximum engineer's scale can show the point of interest of 80 classifications.
Please consult Fig. 3 again, Fig. 3 is the auto zoom system second embodiment module map of navigation map displaying ratio of the present invention.
Compare with first embodiment, the auto zoom system of the navigation map displaying ratio of this second embodiment also comprises:
First user input unit 80; Be used to import the said speed engineer's scale table of comparisons; Thereby the said speed engineer's scale table of comparisons not only can be preset table; Also can obtain, thereby can make things convenient for the user to be arranged under the different speed of a motor vehicle with the second displaying ratio chi displayed map according to the demand of oneself for being provided with according to the user;
Second user input unit 90; Be used to import the said engineer's scale point of interest classification table of comparisons; Thereby the said engineer's scale point of interest classification table of comparisons not only can be preset table; Also can obtain, thereby can make things convenient for the user to be arranged on the interest point information that on map, shows respective classes under the different proportion chi according to the demand of oneself for being provided with according to the user.
It is thus clear that; Compared with prior art; In this second embodiment; Except the advantage that first embodiment is possessed, also possesses following advantage: on the one hand the definite mode to complex crossing is provided, the user input unit of the speed engineer's scale table of comparisons, the engineer's scale point of interest classification table of comparisons also is provided on the other hand.
Though the present invention with preferred embodiment openly as above; But it is not to be used for limiting the present invention; Any those skilled in the art are not breaking away from the spirit and scope of the present invention; Can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (23)
1. the auto zoom method of a navigation map displaying ratio is characterized in that, comprises at least:
Obtain the vehicle current location;
Judge that according to the vehicle current location whether vehicle is near complex crossing;
If show current map with the first displaying ratio chi;
If not, obtain the vehicle present speed; The engineer's scale of searching corresponding present speed is as the second displaying ratio chi; Show current map with the said second displaying ratio chi.
2. the auto zoom method of navigation map displaying ratio as claimed in claim 1 is characterized in that, search through the speed engineer's scale table of comparisons obtain corresponding present speed engineer's scale as the second displaying ratio chi.
3. the auto zoom method of navigation map displaying ratio as claimed in claim 1 is characterized in that said complex crossing is for to confirm to draw according to filling information.
4. the auto zoom method of navigation map displaying ratio as claimed in claim 3 is characterized in that, said filling information is the information of each point between starting point and destination in the navigation path planning.
5. the auto zoom method of navigation map displaying ratio as claimed in claim 1 is characterized in that, said complex crossing is that working direction can't be through the crossing of the turn left prompting or the prompting channeling conduct of turning right.
6. like the auto zoom method of each described navigation map displaying ratio among the claim 1-5, it is characterized in that the said vehicle present speed that obtains comprises: the controller local area network's bus through vehicle is obtained the vehicle present speed.
7. like the auto zoom method of each described navigation map displaying ratio among the claim 1-5; It is characterized in that; The said vehicle present speed that obtains comprises: 2 longitudes and latitudes that obtain through navigation software draw the distance of point-to-point transmission, again with this distance divided by through the resulting result of time of these 2 costs as the vehicle present speed that obtains.
8. the auto zoom method of the navigation map displaying ratio described in claim 2 is characterized in that, the said speed engineer's scale table of comparisons obtains for being provided with according to the user.
9. like the auto zoom method of each described navigation map displaying ratio among the claim 1-5; It is characterized in that; The current map of said demonstration comprises interest point information, and the classification of said point of interest is searched according to said first displaying ratio chi or the said second displaying ratio chi and obtained.
10. the auto zoom method of the navigation map displaying ratio described in claim 9 is characterized in that, said point of interest classification is that the passing ratio chi point of interest classification table of comparisons is searched and obtained.
11. the auto zoom method of navigation map displaying ratio as claimed in claim 10 is characterized in that, larger proportion chi correspondence comprises more multi-class point of interest in the said engineer's scale point of interest classification table of comparisons.
12. the auto zoom method of navigation map displaying ratio as claimed in claim 10 is characterized in that, the said engineer's scale point of interest classification table of comparisons obtains for being provided with according to the user.
13. the auto zoom system of a navigation map displaying ratio is used for automobile navigation, it is characterized in that, comprising:
Positioning unit is used to obtain the current location of vehicle;
Judging unit is connected with said positioning unit, is used for whether judging vehicle near complex crossing according to said current location, if then produce the first displaying ratio chi;
The unit that tests the speed is used to obtain the present speed of vehicle;
Storage unit is used to store the corresponding relation between friction speed and engineer's scale;
Query unit links to each other with said unit and the said storage unit of testing the speed, and is used for according to said present speed, and the engineer's scale of from said storage unit, searching corresponding present speed is as the second displaying ratio chi;
The drawing unit links to each other with said judging unit and said query unit, is used for drawing out current map according to said first displaying ratio chi or the said second displaying ratio chi, and said first displaying ratio has precedence over the said second displaying ratio chi.
14. the auto zoom system of navigation map displaying ratio as claimed in claim 13; It is characterized in that; Also comprise definite unit; Link to each other with said judging unit, said definite unit is used for confirming to draw complex crossing according to filling information, and said filling information is the information of each point between starting point and destination in the navigation path planning.
15. the auto zoom system of navigation map displaying ratio as claimed in claim 13 is characterized in that, said complex crossing is that working direction can't be through the crossing of the turn left prompting or the prompting channeling conduct of turning right.
16. auto zoom system like each described navigation map displaying ratio among the claim 13-15; It is characterized in that; The said unit that tests the speed links to each other with controller local area network's bus of vehicle, obtains the vehicle present speed through said controller local area network bus.
17. auto zoom system like each described navigation map displaying ratio among the claim 13-15; It is characterized in that; The said unit that tests the speed obtains the distance that 2 longitudes and latitudes draw point-to-point transmission from navigation software, again with this distance divided by through the resulting result of time of these 2 costs as the vehicle present speed that obtains.
18. the auto zoom system of navigation map displaying ratio as claimed in claim 13 is characterized in that, stores the speed engineer's scale table of comparisons in the said storage unit.
19. the auto zoom system of navigation map displaying ratio as claimed in claim 18 is characterized in that, also comprises first user input unit, is used to import the said speed engineer's scale table of comparisons.
20. the auto zoom system of navigation map displaying ratio as claimed in claim 13; It is characterized in that; Said current map comprises interest point information, and said query unit is searched the classification that obtains point of interest according to said first displaying ratio chi or the said second displaying ratio chi.
21. the auto zoom system of the navigation map displaying ratio described in claim 20 is characterized in that, stores the engineer's scale point of interest classification table of comparisons in the said storage unit.
22. the auto zoom system of navigation map displaying ratio as claimed in claim 21 is characterized in that, larger proportion chi correspondence comprises more multi-class point of interest in the said engineer's scale point of interest classification table of comparisons.
23. the auto zoom system of navigation map displaying ratio as claimed in claim 21 is characterized in that, also comprises second user input unit, is used to import the said engineer's scale point of interest classification table of comparisons.
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| 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 |
| CN114812543A (en) * | 2021-01-28 | 2022-07-29 | 泰为股份有限公司 | Computing system with automatic map zoom mechanism and operation method thereof |
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Application publication date: 20120711 |