CN102541412A - Method and system for automatically zooming in and out display scale of navigation map - Google Patents
Method and system for automatically zooming in and out display scale of navigation map Download PDFInfo
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- CN102541412A CN102541412A CN201010607120XA CN201010607120A CN102541412A CN 102541412 A CN102541412 A CN 102541412A CN 201010607120X A CN201010607120X A CN 201010607120XA CN 201010607120 A CN201010607120 A CN 201010607120A CN 102541412 A CN102541412 A CN 102541412A
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Abstract
The invention discloses a method and system for automatically zooming in and out a display scale of a navigation map. The method comprises the following steps of: acquiring a current speed of a vehicle; searching a scale corresponding to the current speed to serve as a display scale according to the current speed; and displaying a current map with the display scale. The system comprises a speed measurement unit used for acquiring a current speed of a vehicle, a storage unit used for storing corresponding relationships between different speeds and scales, a search unit which is connected with the speed measurement unit and the storage unit and used for searching the scale corresponding to the current speed from the storage unit to serve as a display scale according to the current speed, and a drawing unit which is connected with the search unit and used for drawing a current map according to the display scale. The current map is automatically regulated by acquiring the current speed of the vehicle, so that the display scale corresponding to the current speed of the vehicle is displayed. According to the method and system for automatically zooming in and out the display scale of the navigation map, the aim of automatically zooming the display scale of the navigation map without repeated operation of a user is achieved.
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.
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, the displaying ratio of auto zoom navigation map is watched 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, comprising:
Obtain the vehicle present speed;
According to said present speed, the engineer's scale of searching corresponding present speed is as the displaying ratio chi;
Show current map with said displaying ratio chi.
Optional, through the speed engineer's scale table of comparisons search obtain corresponding present speed engineer's scale as the displaying ratio chi.
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, said current map comprises interest point information, the classification of said point of interest is searched according to said displaying ratio chi and is obtained.
Optional, said point of interest classification is that the passing ratio chi point of interest classification table of comparisons is searched and obtained.
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:
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 displaying ratio chi;
The drawing unit links to each other with said query unit, is used for drawing out current map according to said displaying ratio chi.
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 point of interest according to said 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:
Through obtaining the vehicle present speed current map of adjustment automatically, the displaying ratio chi corresponding with the vehicle present speed shows.Reach the displaying ratio of auto zoom navigation map, make things convenient for the user to watch, and need not the purpose of 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.The present invention provides a kind of auto zoom method of navigation map displaying ratio, in present embodiment, comprising:
Step S1: obtain the vehicle present speed;
Step S2: according to said present speed, the engineer's scale of searching corresponding present speed is as the displaying ratio chi;
Step S3: show current map with said displaying ratio chi.
Utilize said method, through obtaining the vehicle present speed current map of adjustment automatically, the displaying ratio chi corresponding with the vehicle present speed shows.Thereby reach the displaying ratio of auto zoom navigation map, make things convenient for the user to watch, and need not the purpose of user's repeatable operation.
Here, said step S2 be through the speed engineer's scale table of comparisons search obtain corresponding present speed engineer's scale as the 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 said displaying ratio chi displayed map according to the demand of oneself.
Here, for step S1, 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 S1; 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, said current map comprises interest point information.Said point of interest classification is searched according to said 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:
The unit 10 that tests the speed is used to obtain the present speed of vehicle;
Pass through said system; Said query unit 30 is searched in said storage unit 20 according to the said unit 10 resulting present speeds that test the speed and is obtained the displaying ratio chi, and 40 of said drawing unit are adjusted current map automatically and shown with the second corresponding displaying ratio chi of vehicle present speed.Thereby can reach the displaying ratio of auto zoom navigation map, make things convenient for the user to watch, and need not the purpose of user's repeatable operation.
Here, the said unit 10 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 10 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 20 here; Said query unit 30 is according to said present speed, and the seek rate engineer's scale table of comparisons draws said displaying ratio chi from said storage unit 20.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 20.
Here, said current map comprises interest point information, and said query unit 30 is searched the classification that obtains said point of interest according to said displaying ratio chi.
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 20 here; Said query unit 30 is the engineer's scales according to current map, from said storage unit 20, 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 20.
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 50; 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 displaying ratio chi displayed map according to the demand of oneself for being provided with according to the user;
Second user input unit 60; 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: the user input unit of the speed engineer's scale table of comparisons, the engineer's scale point of interest classification table of comparisons is provided, thereby has made things convenient for the user to be provided with according to the needs of oneself.
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 (18)
1. the auto zoom method of a navigation map displaying ratio is characterized in that, comprising:
Obtain the vehicle present speed;
According to said present speed, the engineer's scale of searching corresponding present speed is as the displaying ratio chi;
Show current map with said displaying ratio chi.
2. the auto zoom method of navigation map displaying ratio as claimed in claim 1 is characterized in that, through the speed engineer's scale table of comparisons search obtain corresponding present speed engineer's scale as the displaying ratio chi.
3. according to claim 1 or claim 2 the auto zoom method of navigation map displaying ratio 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.
4. according to claim 1 or claim 2 the auto zoom method of navigation map displaying ratio; 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.
5. 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.
6. according to claim 1 or claim 2 the auto zoom method of navigation map displaying ratio is characterized in that said current map comprises interest point information, and the classification of said point of interest is searched according to said displaying ratio chi and obtained.
7. the auto zoom method of the navigation map displaying ratio described in claim 6 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.
8. the auto zoom method of navigation map displaying ratio as claimed in claim 7 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.
9. the auto zoom method of navigation map displaying ratio as claimed in claim 7 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.
10. the auto zoom system of a navigation map displaying ratio is characterized in that, comprising:
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 displaying ratio chi;
The drawing unit links to each other with said query unit, is used for drawing out current map according to said displaying ratio chi.
11. the auto zoom system of navigation map displaying ratio as claimed in claim 10 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.
12. the auto zoom system of navigation map displaying ratio as claimed in claim 10; 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.
13. the auto zoom system of navigation map displaying ratio as claimed in claim 10 is characterized in that, stores the speed engineer's scale table of comparisons in the said storage unit.
14. the auto zoom system of navigation map displaying ratio as claimed in claim 13 is characterized in that, also comprises first user input unit, is used to import the said speed engineer's scale table of comparisons.
15. the auto zoom system of navigation map displaying ratio as claimed in claim 10 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 displaying ratio chi.
16. the auto zoom system of the navigation map displaying ratio described in claim 15 is characterized in that, stores the engineer's scale point of interest classification table of comparisons in the said storage unit.
17. the auto zoom system of navigation map displaying ratio as claimed in claim 16 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.
18. the auto zoom system of navigation map displaying ratio as claimed in claim 16 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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| Application Number | Priority Date | Filing Date | Title |
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| CN201010607120XA CN102541412A (en) | 2010-12-27 | 2010-12-27 | Method and system for automatically zooming in and out display scale of navigation map |
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| CN201010607120XA CN102541412A (en) | 2010-12-27 | 2010-12-27 | Method and system for automatically zooming in and out display scale of navigation map |
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| CN104992616A (en) * | 2015-07-31 | 2015-10-21 | 小米科技有限责任公司 | Map display method and device thereof |
| WO2017118270A1 (en) * | 2016-01-08 | 2017-07-13 | 腾讯科技（深圳）有限公司 | Vehicle-mounted hmi adjustment method, vehicle-mounted terminal and storage medium |
| CN107084740A (en) * | 2017-03-27 | 2017-08-22 | 宇龙计算机通信科技(深圳)有限公司 | A kind of air navigation aid and device |
| CN107357829A (en) * | 2017-06-19 | 2017-11-17 | 北京小米移动软件有限公司 | Scaling processing method and processing device |
| WO2018023738A1 (en) * | 2016-08-05 | 2018-02-08 | 胡明祥 | Method for prompting ownership information about navigation map scaling technology, and navigation system |
| WO2018023739A1 (en) * | 2016-08-05 | 2018-02-08 | 胡明祥 | Map scaling method during navigation, and navigation system |
| WO2018023737A1 (en) * | 2016-08-05 | 2018-02-08 | 胡明祥 | Data collection method for scaling map according to speed, and navigation system |
| CN108917775A (en) * | 2018-03-29 | 2018-11-30 | 斑马网络技术有限公司 | Vehicular map dynamic processing system and its method |
| 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 |
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Application publication date: 20120704 |