CN104236561A - On-line and off-line mixed path calculating method for vehicle navigation - Google Patents
On-line and off-line mixed path calculating method for vehicle navigation Download PDFInfo
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- CN104236561A CN104236561A CN201410475721.8A CN201410475721A CN104236561A CN 104236561 A CN104236561 A CN 104236561A CN 201410475721 A CN201410475721 A CN 201410475721A CN 104236561 A CN104236561 A CN 104236561A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3446—Details of route searching algorithms, e.g. Dijkstra, A*, arc-flags, using precalculated routes
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Navigation (AREA)
- Traffic Control Systems (AREA)
Abstract
An on-line and off-line mixed path calculating method for vehicle navigation is a method adopting comparison with a path provided by a network server simultaneously in a path calculating process of a vehicle navigation system. According to the method, a function module can be divided into a server side module and a client side module; a server side of the server side module finishes development of a path calculation module and a communication module, and the path calculation module is responsible for path planning according to a path calculating demand provided by the vehicle navigation system; a client side of the client side module is divided into a communication module and an on-line and off-line path comparison module, the communication module is communicated with the server side for sending the path calculating demand and receiving a path calculating result, and the on-line and off-line path comparison module compares an on-line path and an off-line path comprehensively and supplies the path with better road conditions to a user according to the comparison result. The on-line and off-line mixed path calculating method has the advantages as follows: the condition that poor path quality of local path calculation caused by information limit is avoided through comparison with the network path, and the path quality is improved.
Description
Technical field
The present invention relates to vehicle mounted guidance technical field, particularly path method is calculated in the online off-line mixing of a kind of vehicle mounted guidance.
Background technology
What current onboard navigation system adopted substantially is all off-line route planning technology, namely data and software systems are stored in this locality, software systems utilize local data programme path for user, there is software and the slow inferior position of map data update in this route planning technology, and passing by journey in calculation can not with reference to real-time road condition information, so the route quality sometimes cooked up is not good.
Summary of the invention
The object of the invention is to be applied in onboard navigation system to server be calculated online road technique, namely when network function can with the route that this locality can be planned of onboard navigation system and the route planned of the webserver compare, route more excellent for road conditions is supplied to user to use, thus promoting calculation road quality, spy provides the online off-line mixing of a kind of vehicle mounted guidance and calculates path method.
The invention provides the online off-line mixing of a kind of vehicle mounted guidance and calculate path method, it is characterized in that: path method is calculated in the online off-line mixing of described vehicle mounted guidance, be a kind of in the route calculation process of onboard navigation system, provide route to compare method with the webserver simultaneously;
Functional module divides can be divided into server end module and client modules:
Server end module:
Server end completes the exploitation of calculating road module and communication module, route planning is carried out in the calculation road request that calculating road module in charge provides according to onboard navigation system, communication module realizes the communication with onboard navigation system, comprises the road request of calculating that obtains, calculation road result feedback to client, sees Fig. 1.
Client modules:
Client is divided into communication module and online off-line route comparison module two parts.Communication module realizes the communication with server end, comprises transmission and calculates road request, receives and calculate road result.Online off-line route comparison module carries out Integrated comparative to online route and off-line route, according to comparative result, better for road conditions route is supplied to user, sees Fig. 2.
Path method is calculated in the online off-line mixing of described vehicle mounted guidance, in onboard navigation system, namely when network function can with onboard navigation system route that this locality is planned and the route planned of the webserver compare, route more excellent for road conditions is supplied to user.
Advantage of the present invention:
Path method is calculated in the mixing of vehicle mounted guidance of the present invention online off-line, by with the comparing of network routes, shield and locally calculate road because information limits to the not good situation of the route quality that causes, thus improve route quality.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is vehicle mounted guidance and webserver communications applications schematic diagram;
Fig. 2 is the application scenario example schematic of online off-line mixing.
Embodiment
Embodiment 1
Present embodiments provide the online off-line mixing of a kind of vehicle mounted guidance and calculate path method, it is characterized in that: path method is calculated in the online off-line mixing of described vehicle mounted guidance, be a kind of in the route calculation process of onboard navigation system, provide route to compare method with the webserver simultaneously;
Functional module divides can be divided into server end module and client modules:
Server end module:
Server end completes the exploitation of calculating road module and communication module, route planning is carried out in the calculation road request that calculating road module in charge provides according to onboard navigation system, communication module realizes the communication with onboard navigation system, comprises the road request of calculating that obtains, calculation road result feedback to client, sees Fig. 1.
Client modules:
Client is divided into communication module and online off-line route comparison module two parts.Communication module realizes the communication with server end, comprises transmission and calculates road request, receives and calculate road result.Online off-line route comparison module carries out Integrated comparative to online route and off-line route, according to comparative result, better for road conditions route is supplied to user, sees Fig. 2.
Path method is calculated in the online off-line mixing of described vehicle mounted guidance, in onboard navigation system, namely when network function can with onboard navigation system route that this locality is planned and the route planned of the webserver compare, route more excellent for road conditions is supplied to user.
Claims (2)
1. a path method is calculated in the online off-line mixing of vehicle mounted guidance, it is characterized in that: path method is calculated in the online off-line mixing of described vehicle mounted guidance, is a kind of in the route calculation process of onboard navigation system, provides route to compare method simultaneously with the webserver;
Functional module divides can be divided into server end module and client modules:
Server end module:
Server end completes the exploitation of calculating road module and communication module, route planning is carried out in the calculation road request that calculating road module in charge provides according to onboard navigation system, communication module realizes the communication with onboard navigation system, comprises the road request of calculating that obtains, calculation road result feedback to client;
Client modules:
Client is divided into communication module and online off-line route comparison module two parts; Communication module realizes the communication with server end, comprises transmission and calculates road request, receives and calculate road result; Online off-line route comparison module carries out Integrated comparative to online route and off-line route, according to comparative result, better for road conditions route is supplied to user.
2. calculate path method according to the online off-line mixing of vehicle mounted guidance according to claim 1, it is characterized in that: path method is calculated in the online off-line mixing of described vehicle mounted guidance, in onboard navigation system, namely when network function can with onboard navigation system route that this locality is planned and the route planned of the webserver compare, route more excellent for road conditions is supplied to user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410475721.8A CN104236561A (en) | 2014-09-17 | 2014-09-17 | On-line and off-line mixed path calculating method for vehicle navigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410475721.8A CN104236561A (en) | 2014-09-17 | 2014-09-17 | On-line and off-line mixed path calculating method for vehicle navigation |
Publications (1)
| Publication Number | Publication Date |
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| CN104236561A true CN104236561A (en) | 2014-12-24 |
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| CN201410475721.8A Pending CN104236561A (en) | 2014-09-17 | 2014-09-17 | On-line and off-line mixed path calculating method for vehicle navigation |
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Cited By (2)
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| CN106441314A (en) * | 2015-08-13 | 2017-02-22 | 现代自动车株式会社 | Navigation interworking apparatus for mobile terminal |
| CN108027246A (en) * | 2015-05-28 | 2018-05-11 | 谷歌有限责任公司 | The dynamically offline and online data in Integrated GIS application |
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Application publication date: 20141224 |