CN102944247B - A kind of method for path navigation - Google Patents
A kind of method for path navigation Download PDFInfo
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- CN102944247B CN102944247B CN201210488964.6A CN201210488964A CN102944247B CN 102944247 B CN102944247 B CN 102944247B CN 201210488964 A CN201210488964 A CN 201210488964A CN 102944247 B CN102944247 B CN 102944247B
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Abstract
The invention discloses a kind of method for path navigation, relate to ITS Information service technology field, solve in prior art and weather condition and path navigation are not combined, make user when by guidance path, can not avoid running into boisterous problem, described method comprises: obtain the raster data carrying Weather information data according to prefixed time interval; When existence in described grid is greater than the Weather information data of predetermined threshold value, determine that described raster data is hazardous weather information data; Obtain the center point coordinate of the boundary rectangle of each path unit in specified path; According to the coordinate data of described center point coordinate and described hazardous weather information data, set up label table; The departure place sent according to described label table and terminal, destination and with reference to weather condition, determine path navigation information, and described path navigation information sent to described terminal.The embodiment of the present invention is applied in path navigation process.
Description
Technical field
The present invention relates to ITS Information service technology field, particularly relate to a kind of method for path navigation.
Background technology
Along with the fast development of traffic-information service industry, the scope traffic information simple traditional sense of dabbling of transport information expands to road trip information, Weather information also to be gone on a journey indispensable reference information as city city car and crowd, especially travelling across city of an intercity vehicle, has higher requirement to the real-time of weather condition and forecast information.
In existing path navigation technology, the departure place, destination, the weather condition that just arrange according to user and evade path, for user provides more satisfactory new route, and provide new route weather condition through region, and weather condition and path navigation are not combined, make user when by guidance path, can not avoid running into inclement weather.
Summary of the invention
Embodiments of the invention provide a kind of method for path navigation, achieve when path navigation, can avoid running into boisterous path for user provides, and strengthen Consumer's Experience.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of method for path navigation, comprising:
The raster data carrying Weather information data is obtained according to prefixed time interval, described raster data comprises Weather information data and the coordinate data of the designated geographic area that each grid covers, and described coordinate data is used to refer to the designated geographic area that each grid covers;
When existence in described grid is greater than the Weather information data of predetermined threshold value, determine that described raster data is hazardous weather information data;
Obtain the center point coordinate of the boundary rectangle of each path unit in specified path, described path unit is divide according to different designated sizes multiple route segments that described specified path obtains;
According to the coordinate data of described center point coordinate and described hazardous weather information data, set up label table, described label table comprises the mark of path unit corresponding to center point coordinate in the coordinate data being present in described hazardous weather information data;
The departure place sent according to described label table and terminal, destination and with reference to weather condition, determine path navigation information, and described path navigation information sent to described terminal, do not comprise the path unit in described label table in described path navigation information.
A kind of method for path navigation that the embodiment of the present invention provides, the raster data carrying Weather information data is obtained according to prefixed time interval, when existence in described grid is greater than the Weather information data of predetermined threshold value, determine that described raster data is hazardous weather information data, according to the center point coordinate of the boundary rectangle of path unit each in specified path and the coordinate data of described hazardous weather information data, set up label table, then according to the departure place that described label table and terminal send, destination and reference weather condition, determine path navigation information, and described path navigation information is sent to described terminal.The embodiment of the present invention solves in prior art and weather condition and path navigation is not combined, make user when by guidance path, can not avoid running into boisterous problem, achieve when path navigation, can avoid running into boisterous path for user provides, strengthen Consumer's Experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in the embodiment of the present invention below, apparently, accompanying drawing described is below only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The process flow diagram of a kind of method for path navigation that Fig. 1 provides for the embodiment of the present invention;
The process flow diagram of the another kind of method for path navigation that Fig. 2 provides for the embodiment of the present invention;
The process flow diagram setting up label table that in a kind of method for path navigation that Fig. 3 provides for the embodiment of the present invention, step 104 comprises;
The process flow diagram of the determination path navigation information that step 105 comprises in a kind of method for path navigation that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, embodiments provide a kind of method for path navigation, the executive agent of the embodiment of the present invention is TSP (Telematics Service Provider, traffic-information service provider), and described method comprises:
101, the raster data carrying Weather information data is obtained according to prefixed time interval, described raster data comprises Weather information data and the coordinate data of the designated geographic area that each grid covers, and described coordinate data is used to refer to the designated geographic area that each grid covers.
Weather bureau is according to OGC (Open Geospatial Consortium, open geographic information system association) the grid Web service standard formulated, designated geographic area is divided into grid one by one, raster data in each grid is the coordinate data in the Weather information data in the region that this grid covers and the region of this grid covering, and transmits so that the form of grid (Grid) is Network Based.The data-interface that TSP is provided by weather bureau obtains the raster data carrying Weather information data, the time interval obtained can obtain according to Preset Time, such as, the interval time that weather bureau upgrades Weather information data is 1 hour, then TSP is according to the raster data carrying Weather information data of the time interval acquisition weather bureau issue of 1 hour.
Wherein, the raster data got can be stored in the Weather information database of TSP.
Described Weather information data can be quantity of precipitation, snowfall, dense fog concentration or typhoon.
102, when existence in described grid is greater than the Weather information data of predetermined threshold value, determine that described raster data is hazardous weather information data.
When the Weather information data obtained are quantity of precipitation, according to the predetermined threshold value that TSP is arranged for quantity of precipitation, when the quantity of precipitation got is greater than described predetermined threshold value, determine that raster data corresponding to described quantity of precipitation is hazardous weather data;
When the Weather information data obtained are snowfall, according to the predetermined threshold value that TSP is arranged for snowfall, when the snowfall got is greater than described predetermined threshold value, determine that the raster data that described snowfall is corresponding is hazardous weather data;
When the Weather information data obtained are dense fog concentration, according to the predetermined threshold value that TSP is arranged for dense fog concentration, when the dense fog concentration got is greater than described predetermined threshold value, determine that raster data corresponding to described dense fog concentration is hazardous weather data;
When the Weather information data obtained are typhoon, the predetermined threshold value arranged for typhoon according to TSP is for having, then when getting the Weather information data of typhoon, then the raster data that described typhoon is corresponding is hazardous weather data.
The screening of above-mentioned Weather information data, a data Filter Engine that can be provided by TSP carries out, and the grid utilizing ArcEngine to provide extraction interface completes.
Wherein, the described hazardous weather data obtained by this time point are stored in the Weather information database of TSP.
103, obtain the center point coordinate of the boundary rectangle of each path unit in specified path, described path unit is divide according to different designated sizes multiple route segments that described specified path obtains.
Described specified path is intercity highway, advanced road, loop wire in national highway and city and the main trunk road chosen in advance in the highway in the whole nation or the world.Utilize in prior art, according to the designated size in the correspondence table preset, described specified path is divided into multiple path unit (link), wherein said granularity can not be identical on every bar specified path, the granularity of division of each path unit on same specified path is not identical yet, can with reference to the criteria for classifying of the prior art.
Then obtain the center point coordinate of the boundary rectangle of each path unit, have how many path unit, just have how many center point coordinates.
104, according to the coordinate data of described center point coordinate and described hazardous weather information data, set up label table, described label table comprises the mark of path unit corresponding to center point coordinate in the coordinate data being present in described hazardous weather information data.
Using the input of described center point coordinate as ArcEngine, then the grid point value query interface provided by ArcEngine inquires corresponding grid point value, namely in the coordinate data of described raster data, described center point coordinate is searched, when there is described center point coordinate in the coordinate data at described raster data, then illustrate that described hazardous weather can have influence on the road conditions in path unit corresponding to described center point coordinate.
105, the departure place sent according to described label table and terminal, destination and with reference to weather condition, determine path navigation information, and described path navigation information is sent to described terminal, do not comprise the path unit in described label table in described path navigation information.
When user terminal is wanted to obtain navigation information, by inputting the address of departure place and destination, and choose with reference to weather condition, and when the requirement obtaining navigation information being sent to described TSP, then described TSP receiving terminal send departure place, destination and with reference to weather condition, and the departure place sent according to described label table and terminal, destination and with reference to weather condition, determine path navigation information, and the path unit do not comprised in described path navigation information in described label table, then described path navigation information is sent to described terminal.
Described path navigation information can be stored in volatile data base by described TSP, and regularly can empty the path navigation information sending to terminal, owing to giving the path navigation information of described terminal nonsensical for other-end, but the requirement that described terminal obtains navigation information next time may be there is, then need to upgrade according to this path navigation information is carried out remaining silent with the requirement obtaining navigation information next time, then in the volatile data base of TSP, store described path navigation information, storage time is arranged as required by TSP, such as, be half an hour.
Described hazardous weather information data is also comprised in described path navigation information, when the operating system of described terminal is conventional system, described terminal can according to described hazardous weather information data, the path unit of dangerous weather is shown in described terminal, such as represent with circle or rectangle frame the hazardous location that hazardous weather covers, when described terminal is the terminal supporting vehicle-mounted embedded browser, then described terminal can according to described hazardous weather information data, the path unit of dangerous weather is shown with irregular profile in described terminal, here do not limit.
When described terminal possesses the terminal of TTS (Text to Speech, phonetic synthesis) or correlation function, described terminal can according to described hazardous weather information data forecast weather conditions.
A kind of method for path navigation that the embodiment of the present invention provides, the raster data carrying Weather information data is obtained according to prefixed time interval, when existence in described grid is greater than the Weather information data of predetermined threshold value, determine that described raster data is hazardous weather information data, according to the center point coordinate of the boundary rectangle of path unit each in specified path and the coordinate data of described hazardous weather information data, set up label table, then according to the departure place that described label table and terminal send, destination and reference weather condition, determine path navigation information, and described path navigation information is sent to described terminal.The embodiment of the present invention solves in prior art and weather condition and path navigation is not combined, make user when by guidance path, can not avoid running into boisterous problem, achieve when path navigation, can avoid running into boisterous path for user provides, strengthen Consumer's Experience.
In a kind of implementation of the embodiment of the present invention, a kind of method for path navigation is provided, as shown in Figure 2, in above-mentioned steps 102, it is described when existence in described grid is greater than the Weather information data of predetermined threshold value, before determining that described raster data is hazardous weather information data, described method also comprises:
106, judge whether there are the Weather information data being greater than predetermined threshold value in each grid described.
The kind of described Weather information data with describe in above-mentioned steps 102 consistent, repeat no more herein.
107, when there are not the Weather information data being greater than described predetermined threshold value in described grid, described raster data is deleted.
When there are not the Weather information data being greater than described predetermined threshold value in described grid, described raster data is deleted from described Weather information database.
In the another kind of implementation of the embodiment of the present invention, provide a kind of method for path navigation, as shown in Figure 3, in above-mentioned steps 104, the described coordinate data according to described center point coordinate and described hazardous weather information data, set up label table, concrete steps are as follows:
301, described center point coordinate is mated with the coordinate data in described hazardous weather information data;
302, when finding described center point coordinate in the coordinate data in described hazardous weather information data, the mark of path unit corresponding for described center point coordinate is stored in described label table.
Using the input of described center point coordinate as ArcEngine, then the grid point value query interface provided by ArcEngine inquires corresponding grid point value, namely in the coordinate data of described raster data, described center point coordinate is searched, when there is described center point coordinate in the coordinate data at described raster data, then illustrate that described hazardous weather can have influence on the road conditions in path unit corresponding to described center point coordinate.
Comprise the mark of path unit at described label table, described path unit is that corresponding center point coordinate is present in the coordinate data in described hazardous weather information data.
In another implementation of the embodiment of the present invention, a kind of method for path navigation is provided, as shown in Figure 4, in above-mentioned steps 105, described send according to described label table and terminal departure place, destination and with reference to weather condition, determine path navigation information, do not comprise the path unit in described label table in described path navigation information, concrete steps are as follows:
401, using the path unit existed in described label table as evading path, and the described resistance value evading path is set to infinity;
402, the departure place, the destination that send according to terminal, with reference to weather condition and the local described label table preserved, determine path navigation information, not comprising resistance value in described path navigation information is infinitely-greatly evade path.
When using the path unit existed in described label table as after evading path, the network analysis that calculation pass in described TSP is held up arranges can be set to infinity to the described resistance value evading path temporarily, network analysis evades path described in would not considering according to the resistance value analyzed, here existing commercialization is calculated road engine service and has been possessed the ability of evading conventional path, belong to prior art, here repeat no more.
When user terminal is wanted to obtain navigation information, by inputting the address of departure place and destination, and choose with reference to weather condition, and when the requirement obtaining navigation information being sent to described TSP, then described TSP receiving terminal send departure place, destination and with reference to weather condition, and the departure place sent according to described label table and terminal, destination and with reference to weather condition, determine path navigation information, and the path unit do not comprised in described path navigation information in described label table, then described path navigation information is sent to described terminal.
The path navigation information obtained by said method, when can be implemented in path navigation, can avoid running into boisterous path for user provides, and strengthens Consumer's Experience.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better embodiment.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in the storage medium that can read, as the floppy disk of computing machine, hard disk or CD etc., comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (8)
1. a method for path navigation, is characterized in that, comprising:
The raster data carrying Weather information data is obtained according to prefixed time interval, described raster data comprises Weather information data and the coordinate data of the designated geographic area that each grid covers, and described coordinate data is used to refer to the designated geographic area that each grid covers;
Judge whether there are the Weather information data being greater than predetermined threshold value in each grid described;
When existence in described grid is greater than the Weather information data of predetermined threshold value, determine that described raster data is hazardous weather information data;
Obtain the center point coordinate of the boundary rectangle of each path unit in specified path, described path unit is divide according to different designated sizes multiple route segments that described specified path obtains;
According to the coordinate data of described center point coordinate and described hazardous weather information data, set up label table, described label table comprises the mark of path unit corresponding to center point coordinate in the coordinate data being present in described hazardous weather information data;
The departure place sent according to described label table and terminal, destination and with reference to weather condition, determine path navigation information, and described path navigation information is sent to described terminal and described path navigation information is stored in the volatile data base of traffic-information service provider, do not comprise the path unit in described label table in described path navigation information;
Described described path navigation information being stored in the volatile data base of traffic-information service provider is used for upgrading according to this path navigation information being carried out remaining silent with the requirement obtaining navigation information next time.
2. method according to claim 1, is characterized in that, described Weather information data are quantity of precipitation, snowfall, dense fog concentration or typhoon.
3. method according to claim 1, is characterized in that, described method also comprises:
By described hazardous weather information data storing in Weather information database.
4. method according to claim 1, is characterized in that, described method also comprises:
When there are not the Weather information data being greater than described predetermined threshold value in described grid, described raster data is deleted.
5. method according to claim 1, is characterized in that, the described coordinate data according to described center point coordinate and described hazardous weather information data, sets up label table and comprises:
Described center point coordinate is mated with the coordinate data in described hazardous weather information data;
When finding described center point coordinate in the coordinate data in described hazardous weather information data, the mark of path unit corresponding for described center point coordinate is stored in described label table.
6. method according to claim 1, is characterized in that, described method also comprises:
The departure place that receiving terminal sends, destination and reference weather condition.
7. method according to claim 6, it is characterized in that, described send according to described label table and terminal departure place, destination and with reference to weather condition, determine path navigation information, in described path navigation information, the path unit do not comprised in described label table comprises:
Using the path unit existed in described label table as evading path, and the described resistance value evading path is set to infinity;
The departure place, the destination that send according to terminal, with reference to weather condition and the local described label table preserved, determine path navigation information, not comprising resistance value in described path navigation information is infinitely-greatly evade path.
8. method according to claim 1, is characterized in that, also comprises described hazardous weather information data in described path navigation information.
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| CN106595692A (en) * | 2016-11-24 | 2017-04-26 | 飞驰镁物（北京）信息服务有限公司 | Method and device for providing weather information |
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| CN103824467B (en) * | 2013-12-18 | 2016-03-02 | 招商局重庆交通科研设计院有限公司 | For reservation type communication navigation method of servicing and the device of POV |
| JP2016085080A (en) * | 2014-10-23 | 2016-05-19 | 株式会社オートネットワーク技術研究所 | Avoidance route search system, avoidance route search device, avoidance route search method, and computer program |
| CN104977015B (en) * | 2015-03-27 | 2017-12-29 | 腾讯科技（深圳）有限公司 | The method and device of a kind of route guidance |
| CN107727108B (en) * | 2017-09-30 | 2020-10-30 | 百度在线网络技术（北京）有限公司 | Recommendation method and device for public transportation travel route and computer readable medium |
| CN109186628A (en) * | 2018-09-04 | 2019-01-11 | 武汉华信联创技术工程有限公司 | A kind of weather service system and method for automatic Pilot navigation |
| CN109360435A (en) * | 2018-10-30 | 2019-02-19 | 北京恒达时讯科技股份有限公司 | A kind of highway communication weather information acquisition methods and system |
| CN109724619A (en) * | 2018-11-30 | 2019-05-07 | 深圳春沐源控股有限公司 | Information-pushing method, device and server |
| CN111915913A (en) * | 2019-05-07 | 2020-11-10 | 上海博泰悦臻网络技术服务有限公司 | Severe weather prompting method, prompting system, storage medium and electronic device |
| CN112307361A (en) * | 2019-08-01 | 2021-02-02 | 上海擎感智能科技有限公司 | Severe weather prompting method, prompting system, storage medium and electronic device |
| CN110793536A (en) * | 2019-10-08 | 2020-02-14 | 上海博泰悦臻网络技术服务有限公司 | Vehicle navigation method, device and computer storage medium |
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| US8260485B1 (en) * | 2007-04-26 | 2012-09-04 | The Boeing Company | Adaptive multi-vehicle area coverage optimization system and method |
| TW201024678A (en) * | 2008-12-23 | 2010-07-01 | Mitac Int Corp | Navigation system combined with weather information and method thereof |
| CN102200440A (en) * | 2010-03-25 | 2011-09-28 | 苏州汉扬精密电子有限公司 | Vehicle navigation system and method |
| EP2580558A2 (en) * | 2010-06-14 | 2013-04-17 | TeleCommunication Systems, Inc. | Weather-sensitive route mapping |
| CN102095422B (en) * | 2010-12-07 | 2012-12-26 | 陕西博瑞智通电子科技有限责任公司 | Highway safe driving and smooth traffic guide system and onboard driving guiding instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106595692A (en) * | 2016-11-24 | 2017-04-26 | 飞驰镁物（北京）信息服务有限公司 | Method and device for providing weather information |
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