CN105509757A - Automatic navigation path switching method and device - Google Patents
Automatic navigation path switching method and device Download PDFInfo
- Publication number
- CN105509757A CN105509757A CN201510868372.0A CN201510868372A CN105509757A CN 105509757 A CN105509757 A CN 105509757A CN 201510868372 A CN201510868372 A CN 201510868372A CN 105509757 A CN105509757 A CN 105509757A
- Authority
- CN
- China
- Prior art keywords
- guidance path
- online
- module
- local
- navigation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
- G01C21/3415—Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Navigation (AREA)
Abstract
The invention provides an automatic navigation path switching method and device. By comparison of the difference between a local navigation path and an on-line navigation path, whether on-line navigation is started or not can be determined according to the difference grade, and the advantages of local navigation and on-line navigation are drawn into consideration, so that not only is the correctness of the navigation path guaranteed, but also the network data traffic is saved, and the user experience is improved.
Description
Technical field
The present invention relates to vehicle mounted guidance technical field, particularly relate to a kind of guidance path automatic switching method and device.
Background technology
Along with the development of network technology, the particularly release of 3G/4G network, makes network speed can be competent at the transmission of the larger data of capacity, thereby produces online navigation.Navigate relative to traditional this locality, online navigation possesses that route degree of accuracy is high, the lower advantage of the navigational system of local side, cost, but, the shortcoming of online navigation is to need to expend more network traffic data, for the user that network traffic data is less, too not large actual use value.And this locality is navigated because navigation map is off-line, without the need to expending network traffic data, the cost that therefore navigates is almost nil, but this navigation also has individual shortcoming, namely navigation map is not up-to-date usually, when road changes, can not correctly navigate, Consumer's Experience is not good.Therefore, prior art requires further improvement.
Summary of the invention
The invention provides a kind of guidance path automatic switching method and device, be intended to solve defect of the prior art, realize the advantage taking into account local navigation and online navigation, improve Consumer's Experience.
For achieving the above object, the technical solution used in the present invention is:
One aspect of the present invention provides a kind of guidance path automatic switching method, comprising:
S10. calculate the local guidance path from current location to destination, and upload described local guidance path to online navigation server;
S30. described online navigation server calculates the online guidance path from current location to destination, and more described local guidance path and described online guidance path, whether both judgements there are differences, when a discrepancy exists, enter next step, otherwise return the errorless message of navigation way;
S70. determine last first circuit node overlapped of described local guidance path and described online guidance path and the second circuit node again overlapped, and the online guidance path between described first circuit node, second circuit node and first circuit node, second circuit node is sent to local navigational system;
S80., when the distance that current location arrives described first circuit node is less than predetermined threshold value K1, guidance path is switched to online guidance path by local navigational system;
S90., when the distance that current location crosses described second circuit node is greater than predetermined threshold value K2, guidance path is switched to local guidance path by local navigational system.
Particularly, described predetermined threshold value K1=100 ~ 1000m, preferably, K1=500m.
Particularly, described predetermined threshold value K2=0 ~ 500m, preferably, K1=250m.
Further, also comprise after described step S10:
S20., the preset value S of distance difference is set
th, and upload to online navigation server;
Comprise after described step S30:
S40. the difference grade of described local guidance path and described online guidance path is judged;
S50. when described difference grade is the first estate, step S60 is entered; When described difference grade is the second grade, enter step S70;
S60. judge whether the distance difference of described local guidance path and described online guidance path is greater than preset value S
th, be enter step, otherwise return the errorless message of navigation way.
Particularly, described the first estate is for can arrive at the destination by local guidance path, but online guidance path distance is shorter; Described second grade is for can not arrive at the destination by local guidance path.
The present invention provides a kind of guidance path automatic switchover system on the other hand, comprises local navigational system, online navigation server; Described local navigational system comprises: locating module, local navigation map module, guidance path computing module, data upload module, online navigation data receiver module, online navigation data parsing module, guidance path handover module;
Described locating module, for obtaining current location;
Described local navigation map module, for storing the digital navigation map of local navigational system;
Described guidance path computing module, for calculating guidance path according to departure place, destination;
Described data upload module, for uploading the data needed for navigation;
Described online navigation data receiver module, for receiving online navigation data or the message of the transmission of online navigation server;
Described online navigation data parsing module, for resolving online navigation data or the message of the transmission of online navigation server;
Described guidance path handover module, for switching between local guidance path and online guidance path.
Described guidance path computing module comprises: coincide point preserves module, navigation way redraws module;
Described coincide point preserves module, for preserving the coincidence point information that online navigation data parsing module parses;
Described navigation way update module, for according to coincidence point information and online navigation map, upgrades Present navigation map;
Described online navigation server comprises: data reception module, local guidance path extraction module, online guidance path computing module, guidance path comparison module, online navigation data sending module;
Data reception module, for receiving the data needed for navigation that local navigational system uploads;
Described local guidance path extraction module, for the local guidance path of the extracting data needed for the navigation of uploading from local navigational system;
Described online guidance path computing module, calculates guidance path for the departure place according to local guidance path, destination and online navigation map;
Described guidance path comparison module, for more local guidance path and online guidance path;
Described online navigation data sending module, for sending online guidance path to local navigational system.
Further, described guidance path automatic switchover system, also comprises:
In described local navigational system, be also provided with distance difference threshold setting module, for arranging acceptable distance difference threshold value;
In described online navigation server, be also provided with distance difference threshold value extraction module, for extracting the distance difference threshold value that local navigational system is uploaded; And difference grade judge module, for judging the difference grade of local guidance path and described online guidance path.
Beneficial effect of the present invention is: the present invention passes through the difference of more local guidance path and online guidance path, and determine whether to start online navigation according to the grade of difference, take into account the advantage of local navigation and online navigation, both ensure that the correctness of guidance path, in turn save network traffic data, improve Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is local guidance path schematic diagram of the present invention;
Fig. 2 is the schematic diagram that local guidance path of the present invention compares with online guidance path;
Fig. 3 is another schematic diagram that local guidance path of the present invention compares with online guidance path;
Fig. 4 is the structural representation that guidance path of the present invention automatically switches;
Fig. 5 is another structural representation that guidance path of the present invention automatically switches.
Embodiment
Specifically illustrate embodiments of the present invention below in conjunction with accompanying drawing, accompanying drawing is only for reference and use is described, does not form the restriction to scope of patent protection of the present invention.
As shown in Figure 1 to Figure 3, embodiments of the invention provide a kind of guidance path automatic switching method on the one hand, comprising:
S10. calculate the local guidance path from current location to destination, and upload described local guidance path to online navigation server;
Particularly, local navigational system calculates local guidance path automatically by current location, destination, local navigation map, described local guidance path is by path A 1, A2, A3 ... An forms, and is uploaded on online navigation server by described local guidance path.
S30. described online navigation server calculates the online guidance path from current location to destination, and more described local guidance path and described online guidance path, whether both judgements there are differences, when a discrepancy exists, enter next step, otherwise return the errorless message of navigation way;
Particularly, described online navigation server to navigate the local guidance path uploaded according to this locality, extract navigation departure place and destination, online navigation map according to line server calculates online guidance path, described online guidance path is by path B1, B2, B3 ... Bn forms, and whether both judgements there are differences.
S70. determine last first circuit node overlapped of described local guidance path and described online guidance path and the second circuit node again overlapped, and the online guidance path between described first circuit node, second circuit node and first circuit node, second circuit node is sent to local navigational system;
S80., when the distance that current location arrives described first circuit node is less than predetermined threshold value K1, guidance path is switched to online guidance path by local navigational system;
Particularly, described predetermined threshold value K1=100 ~ 1000m, preferably, K1=500m.
By arranging predetermined threshold value K1, in advance guidance path can be switched to online guidance path by local navigational system, in order to avoid lead to miss the opportunity of Reroute due to gps signal error or personal error.
S90., when the distance that current location crosses described second circuit node is greater than predetermined threshold value K2, guidance path is switched to local guidance path by local navigational system.
Particularly, described predetermined threshold value K2=0 ~ 500m, preferably, K1=250m.
By arranging predetermined threshold value K2, again guidance path being switched to local guidance path by local navigational system after can overlapping completing correct route, ensureing the correctness of navigation way.
In one embodiment of the invention, also comprise after described step S10:
S20., the preset value S of distance difference is set
th, and upload to online navigation server;
Comprise after described step S30:
S40. the difference grade of described local guidance path and described online guidance path is judged;
S50. when described difference grade is the first estate, step S60 is entered; When described difference grade is the second grade, enter step S70;
Particularly, described the first estate is for can arrive at the destination by local guidance path, but online guidance path distance is shorter;
Described second grade is for can not arrive at the destination by local guidance path.
S60. judge whether the distance difference of described local guidance path and described online guidance path is greater than preset value S
th, be enter step, otherwise return the errorless message of navigation way.
Described preset value S
thcan such as, according to needing setting particularly, 10km.
As shown in Figure 2, the present invention provides a kind of guidance path automatic switchover system on the other hand, comprises local navigational system, online navigation server; Described local navigational system comprises: locating module, local navigation map module, guidance path computing module, data upload module, online navigation data receiver module, online navigation data parsing module, guidance path handover module;
Described locating module, for obtaining current location;
Described local navigation map module, for storing the digital navigation map of local navigational system;
Described guidance path computing module, for calculating guidance path according to departure place, destination;
Described data upload module, for uploading the data needed for navigation;
Described online navigation data receiver module, for receiving online navigation data or the message of the transmission of online navigation server;
Described online navigation data parsing module, for resolving online navigation data or the message of the transmission of online navigation server;
Described guidance path handover module, for switching between local guidance path and online guidance path.
Described guidance path computing module comprises: coincide point preserves module, navigation way redraws module;
Described coincide point preserves module, for preserving the coincidence point information that online navigation data parsing module parses;
Described navigation way update module, for according to coincidence point information and online navigation map, upgrades Present navigation map.
Described online navigation server comprises: data reception module, local guidance path extraction module, online guidance path computing module, guidance path comparison module, online navigation data sending module;
Data reception module, for receiving the data needed for navigation that local navigational system uploads;
Described local guidance path extraction module, for the local guidance path of the extracting data needed for the navigation of uploading from local navigational system;
Described online guidance path computing module, calculates guidance path for the departure place according to local guidance path, destination and online navigation map;
Described guidance path comparison module, for more local guidance path and online guidance path;
Described online navigation data sending module, for sending online guidance path to local navigational system.
The course of work of guidance path automatic switching control equipment of the present invention is:
Local navigational system is by locating module determination current location, the destination that guidance path computing module is arranged by user calculates local guidance path automatically according to the local map of navigation electronic of local navigation map module stores, and uploaded on online navigation server by described local guidance path by data upload module.
The data reception module of line server receives the data that local navigational system is uploaded, and send to local guidance path extraction module to extract local guidance path, and navigate departure place and destination, then online guidance path computing module is according to navigation departure place and destination, the online navigation map of line server calculates online guidance path, the more described local guidance path of guidance path comparison module and described online guidance path, whether both judgements there are differences, then determine last first circuit node overlapped of described local guidance path and described online guidance path and the second circuit node again overlapped in this way, and by online navigation data sending module by described first circuit node, second circuit node and first circuit node, online guidance path between second circuit node sends to local navigational system after data packing.
The online navigation data receiver module of local navigational system receives the packet of online navigation server transmission, online navigation data parsing module is sent to resolve, coincide point in guidance path handover module is preserved module and is preserved described first circuit node, second circuit node, when locating module judges that the distance that current location arrives described first circuit node is less than predetermined threshold value K1, guidance path is switched to online guidance path by navigation way update module; When locating module judges that the distance that current location crosses described second circuit node is greater than predetermined threshold value K2, guidance path is switched to local guidance path by local navigational system.
As shown in Figure 3, in one embodiment of the invention, described guidance path automatic switchover system, also comprises:
In described local navigational system, be also provided with distance difference threshold setting module, for arranging acceptable distance difference threshold value;
In described online navigation server, be also provided with distance difference threshold value extraction module, for extracting the distance difference threshold value that local navigational system is uploaded; And difference grade judge module, for judging the difference grade of local guidance path and described online guidance path.
By arranging distance difference threshold setting module in described local navigational system, arrange distance difference threshold value extraction module, difference grade judge module in described online navigation server, when being arrived at the destination by local guidance path, judge the distance difference with online guidance path, if distance difference is less than distance difference threshold value, then do not start online navigation data to download, save flow; Otherwise, if distance difference is greater than distance difference threshold value or can not be arrived at the destination by local guidance path, then start online navigation data and download, reach the object of correct navigation.
Above disclosedly be only preferred embodiment of the present invention, the scope of the present invention can not be limited with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (7)
1. a guidance path automatic switching method, is characterized in that, comprising:
S10. calculate the local guidance path from current location to destination, and upload described local guidance path to online navigation server;
S30. described online navigation server calculates the online guidance path from current location to destination, and more described local guidance path and described online guidance path, whether both judgements there are differences, when a discrepancy exists, enter next step, otherwise return the errorless message of navigation way;
S70. determine last first circuit node overlapped of described local guidance path and described online guidance path and the second circuit node again overlapped, and the online guidance path between described first circuit node, second circuit node and first circuit node, second circuit node is sent to local navigational system;
S80., when the distance that current location arrives described first circuit node is less than predetermined threshold value K1, guidance path is switched to online guidance path by local navigational system;
S90., when the distance that current location crosses described second circuit node is greater than predetermined threshold value K2, guidance path is switched to local guidance path by local navigational system.
2. guidance path automatic switching method according to claim 1, is characterized in that, also comprises after described step S10:
S20., the preset value S of distance difference is set
th, and upload to online navigation server;
Comprise after described step S30:
S40. the difference grade of described local guidance path and described online guidance path is judged;
S50. when described difference grade is the first estate, step S60 is entered; When described difference grade is the second grade, enter step S70;
S60. judge whether the distance difference of described local guidance path and described online guidance path is greater than preset value S
th, be enter step, otherwise return the errorless message of navigation way.
3. guidance path automatic switching method according to claim 2, is characterized in that, described the first estate is for can arrive at the destination by local guidance path, but online guidance path distance is shorter; Described second grade is for can not arrive at the destination by local guidance path.
4. the guidance path automatic switching method according to claim 1-2, is characterized in that, described predetermined threshold value K1=100 ~ 1000m, preferably, and K1=500m.
5. the guidance path automatic switching method according to claim 1-2, is characterized in that, described predetermined threshold value K2=0 ~ 500m, preferably, and K1=250m.
6. a guidance path automatic switching control equipment, is characterized in that, comprising: local navigational system, online navigation server; Described local navigational system comprises: locating module, local navigation map module, guidance path computing module, data upload module, online navigation data receiver module, online navigation data parsing module, guidance path handover module;
Described locating module, for obtaining current location;
Described local navigation map module, for storing the digital navigation map of local navigational system;
Described guidance path computing module, for calculating guidance path according to departure place, destination;
Described data upload module, for uploading the data needed for navigation;
Described online navigation data receiver module, for receiving online navigation data or the message of the transmission of online navigation server;
Described online navigation data parsing module, for resolving online navigation data or the message of the transmission of online navigation server;
Described guidance path handover module, for switching between local guidance path and online guidance path.
Described guidance path computing module comprises: coincide point preserves module, navigation way redraws module;
Described coincide point preserves module, for preserving the coincidence point information that online navigation data parsing module parses;
Described navigation way update module, for according to coincidence point information and online navigation map, upgrades Present navigation map;
Described online navigation server comprises: data reception module, local guidance path extraction module, online guidance path computing module, guidance path comparison module, online navigation data sending module;
Data reception module, for receiving the data needed for navigation that local navigational system uploads;
Described local guidance path extraction module, for the local guidance path of the extracting data needed for the navigation of uploading from local navigational system;
Described online guidance path computing module, calculates guidance path for the departure place according to local guidance path, destination and online navigation map;
Described guidance path comparison module, for more local guidance path and online guidance path;
Described online navigation data sending module, for sending online guidance path to local navigational system.
7. guidance path automatic switching control equipment according to claim 6, is characterized in that, also comprise:
In described local navigational system, be also provided with distance difference threshold setting module, for arranging acceptable distance difference threshold value;
In described online navigation server, be also provided with distance difference threshold value extraction module, for extracting the distance difference threshold value that local navigational system is uploaded; And difference grade judge module, for judging the difference grade of local guidance path and described online guidance path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510868372.0A CN105509757B (en) | 2015-11-30 | 2015-11-30 | A kind of guidance path automatic switching method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510868372.0A CN105509757B (en) | 2015-11-30 | 2015-11-30 | A kind of guidance path automatic switching method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105509757A true CN105509757A (en) | 2016-04-20 |
| CN105509757B CN105509757B (en) | 2019-02-01 |
Family
ID=55717912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510868372.0A Active CN105509757B (en) | 2015-11-30 | 2015-11-30 | A kind of guidance path automatic switching method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105509757B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918825A (en) * | 2017-03-31 | 2017-07-04 | 咪咕互动娱乐有限公司 | A kind of connecting method of track, client |
| CN108627162A (en) * | 2017-03-21 | 2018-10-09 | 高德信息技术有限公司 | A kind of navigation routine determines method and device |
| CN109061698A (en) * | 2018-07-20 | 2018-12-21 | 深圳市泰比特科技有限公司 | Accurate navigation method and mobile terminal |
| CN109672508A (en) * | 2018-12-31 | 2019-04-23 | 叶春林 | It is intelligent to prevent automobile navigation suspension system |
| CN110471409A (en) * | 2019-07-11 | 2019-11-19 | 深圳市优必选科技股份有限公司 | Robot method for inspecting, device, computer readable storage medium and robot |
| CN110832417A (en) * | 2016-12-30 | 2020-02-21 | 迪普迈普有限公司 | Generating routes for autonomous vehicles using high-definition maps |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005005928A1 (en) * | 2003-07-10 | 2005-01-20 | Robert Bosch Gmbh | Method for route navigation in motor vehicles and corresponding navigation device |
| WO2009011839A2 (en) * | 2007-07-13 | 2009-01-22 | Dash Navigation, Inc. | System and method for identifying portions of roads |
| EP2051223A1 (en) * | 2007-10-19 | 2009-04-22 | C.R.F. Societa' Consortile per Azioni | Vehicle dynamic navigation system and method |
| CN102121830A (en) * | 2010-01-11 | 2011-07-13 | 中国移动通信集团公司 | Navigation method, terminal and system |
| CN102564440A (en) * | 2010-09-30 | 2012-07-11 | 株式会社电装 | Communication system and movable terminal |
| JP2013011451A (en) * | 2011-06-28 | 2013-01-17 | Nippon Telegr & Teleph Corp <Ntt> | Route search device, route search method and route search program |
-
2015
- 2015-11-30 CN CN201510868372.0A patent/CN105509757B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005005928A1 (en) * | 2003-07-10 | 2005-01-20 | Robert Bosch Gmbh | Method for route navigation in motor vehicles and corresponding navigation device |
| WO2009011839A2 (en) * | 2007-07-13 | 2009-01-22 | Dash Navigation, Inc. | System and method for identifying portions of roads |
| EP2051223A1 (en) * | 2007-10-19 | 2009-04-22 | C.R.F. Societa' Consortile per Azioni | Vehicle dynamic navigation system and method |
| CN102121830A (en) * | 2010-01-11 | 2011-07-13 | 中国移动通信集团公司 | Navigation method, terminal and system |
| CN102564440A (en) * | 2010-09-30 | 2012-07-11 | 株式会社电装 | Communication system and movable terminal |
| JP2013011451A (en) * | 2011-06-28 | 2013-01-17 | Nippon Telegr & Teleph Corp <Ntt> | Route search device, route search method and route search program |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110832417A (en) * | 2016-12-30 | 2020-02-21 | 迪普迈普有限公司 | Generating routes for autonomous vehicles using high-definition maps |
| CN110832417B (en) * | 2016-12-30 | 2023-06-09 | 辉达公司 | Generating routes for autonomous vehicles using high definition maps |
| CN108627162A (en) * | 2017-03-21 | 2018-10-09 | 高德信息技术有限公司 | A kind of navigation routine determines method and device |
| CN106918825A (en) * | 2017-03-31 | 2017-07-04 | 咪咕互动娱乐有限公司 | A kind of connecting method of track, client |
| CN109061698A (en) * | 2018-07-20 | 2018-12-21 | 深圳市泰比特科技有限公司 | Accurate navigation method and mobile terminal |
| CN109672508A (en) * | 2018-12-31 | 2019-04-23 | 叶春林 | It is intelligent to prevent automobile navigation suspension system |
| CN110471409A (en) * | 2019-07-11 | 2019-11-19 | 深圳市优必选科技股份有限公司 | Robot method for inspecting, device, computer readable storage medium and robot |
| CN110471409B (en) * | 2019-07-11 | 2022-12-02 | 深圳市优必选科技股份有限公司 | Robot inspection method and device, computer readable storage medium and robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105509757B (en) | 2019-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105509757A (en) | Automatic navigation path switching method and device | |
| CN102016508B (en) | Transmission of routes between client and server using route IDs | |
| US20220412764A1 (en) | Navigation method and apparatus | |
| CN103017783B (en) | Navigation method and system, map data management high in the clouds and data-updating method thereof | |
| KR102394103B1 (en) | Location determination methods and devices, servers and systems | |
| CN110779538B (en) | Allocating processing resources across local and cloud-based systems relative to autonomous navigation | |
| US20080091348A1 (en) | Navigation apparatus and route re-search method thereof | |
| US9465099B2 (en) | Method for measuring position of vehicle using cloud computing | |
| KR20070032948A (en) | Route navigation device, route navigation method and program | |
| JP4480613B2 (en) | Navigation device | |
| CN104378731A (en) | Blind switching or blind redirection method and system and associated equipment | |
| US10613190B2 (en) | Position estimation system and center | |
| KR100864178B1 (en) | Driving status detection method according to speed and traffic information providing system using the method | |
| US20140222320A1 (en) | Operating method of road guide system and road guide method of portable device | |
| CN101526359A (en) | Automatic analysis method for running route of navigation apparatus and data sharing method between devices | |
| JP4571887B2 (en) | Navigation system, matching method, route search server, and navigation terminal device | |
| KR101067377B1 (en) | Apparatus and method for estimating the position of a road vehicle | |
| EP3701225A1 (en) | Method and apparatus for navigation based on route reuse | |
| CN105698805A (en) | Navigation method and device | |
| JP5908742B2 (en) | Warning activation instruction method in train approach warning system | |
| CN100535599C (en) | Hazardous area guide method for vehicle navigation equipment | |
| KR102703475B1 (en) | Apparatus and method for guiding route | |
| KR100459400B1 (en) | Navigator and navigation method for automobile | |
| CN202382748U (en) | Navigation and positioning correction device | |
| US20150237468A1 (en) | Method of sending destination and current locations from a mobile device to a central viewing location |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |