CN102944247A - Path navigation method - Google Patents
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- CN102944247A CN102944247A CN2012104889646A CN201210488964A CN102944247A CN 102944247 A CN102944247 A CN 102944247A CN 2012104889646 A CN2012104889646 A CN 2012104889646A CN 201210488964 A CN201210488964 A CN 201210488964A CN 102944247 A CN102944247 A CN 102944247A
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Abstract
The invention discloses a path navigation method, relates to the technical field of intelligent traffic information service, and solves the problem that a user cannot avoid severe weather when passing through a navigation path as a weather situation is not combined with path navigation in the prior art. The method includes the steps: acquiring raster data carrying weather information data according to preset time intervals; determining that the raster data are dangerous weather information data when the weather information data in a raster are larger than a preset threshold value; acquiring central point coordinates of an exterior rectangle of each path unit in an appointed path; building an identity table according to the central point coordinates and coordinate data of the dangerous weather information data; and determining path navigation information according to the identity table and departure place, destination and referring weather conditions transmitted by a terminal, and transmitting the path navigation information to the terminal. The path navigation method is applied to the path navigation process.
Description
Technical field
The present invention relates to ITS Information service technology field, relate in particular to a kind of path navigation method.
Background technology
Fast development along with the traffic-information service industry, the scope simple traffic information on the traditional sense of dabbling of transport information expands to the road trip information, Weather information is also as vehicle in the city and the crowd indispensable reference information of going on a journey, travel in the city of striding of an especially intercity vehicle, the real-time and forecast information of weather condition is had higher requirement.
In existing path navigation technology, departure place, destination, the weather condition that just arranges according to the user and evade the path, for the user provides more satisfactory new route, and provide new route to pass through the weather condition in zone, and weather condition and path navigation are not carried out combination, so that the user can not avoid running into inclement weather by guidance path the time.
Summary of the invention
Embodiments of the invention provide a kind of path navigation method, have realized when path navigation, can avoid running into boisterous path for the user provides, and strengthen the user and experience.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of path navigation method comprises:
Carry the raster data of Weather information data according to the Preset Time interval acquiring, described raster data comprises Weather information data and the coordinate data of the designated geographic area of each grid covering, and described coordinate data is used to refer to the designated geographic area that each grid covers;
When the Weather information data that exist in the described grid greater than predetermined threshold value, determine that described raster data is the hazardous weather information data;
Obtain the center point coordinate of the boundary rectangle of each path unit in the specified path, described path unit is for to divide a plurality of route segments that described specified path obtains according to different designated sizes;
According to the coordinate data of described center point coordinate and described hazardous weather information data, set up label table, comprise the sign of the path unit that center point coordinate in the coordinate data that is present in described hazardous weather information data is corresponding in the described label table;
The departure place that sends according to described label table and terminal, destination and with reference to weather condition are determined path navigation information, and described path navigation information are sent to described terminal, do not comprise the path unit in the described label table in the described path navigation information.
A kind of path navigation method that the embodiment of the invention provides, carry the raster data of Weather information data according to the Preset Time interval acquiring, when the Weather information data that exist in the described grid greater than predetermined threshold value, determine that described raster data is the hazardous weather information data, according to the center point coordinate of the boundary rectangle of each path unit in the specified path and the coordinate data of described hazardous weather information data, set up label table, then the departure place that sends 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.The embodiment of the invention has solved in the prior art does not carry out combination with weather condition and path navigation, so that the user is by guidance path the time, can not avoid running into boisterous problem, realized when path navigation, can avoid running into boisterous path for the user provides, strengthen the user and experience.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the below will do to introduce simply to the accompanying drawing of required use in the embodiment of the invention, apparently, below described accompanying drawing only be some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The process flow diagram of a kind of path navigation method that Fig. 1 provides for the embodiment of the invention;
The process flow diagram of the another kind of path navigation method that Fig. 2 provides for the embodiment of the invention;
The process flow diagram of setting up label table that step 104 comprises in a kind of path navigation method that Fig. 3 provides for the embodiment of the invention;
The process flow diagram of definite path navigation information that step 105 comprises in a kind of path navigation method that Fig. 4 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1, the embodiment of the invention provides a kind of path navigation method, and the executive agent of the embodiment of the invention is TSP (Telematics Service Provider, traffic-information service provider), and described method comprises:
101, carry the raster data of Weather information data according to the Preset Time interval acquiring, described raster data comprises Weather information data and the coordinate data of the designated geographic area of each grid covering, 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, association of open geographic information system) the grid Web service standard of formulating, designated geographic area is divided into one by one grid, the Weather information data in the zone that the raster data in each grid covers for this grid and the coordinate data in the zone that this grid covers, and with Network Based transmission of form of grid (Grid).The data-interface that TSP provides by weather bureau obtains the raster data that carries the Weather information data, the time interval of obtaining can obtain according to Preset Time, for example, be 1 hour the interval time that weather bureau upgrades the Weather information data, and then TSP obtained the raster data that carries the Weather information data of weather bureau's issue according to 1 hour the time interval.
Wherein, the raster data that gets access to 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 the Weather information data that exist in the described grid greater than predetermined threshold value, determine that described raster data is the hazardous weather information data.
When the Weather information data of obtaining were quantity of precipitation, the predetermined threshold value that arranges for quantity of precipitation according to TSP when the quantity of precipitation that gets access to during greater than described predetermined threshold value, determined that raster data corresponding to described quantity of precipitation is the hazardous weather data;
When the Weather information data of obtaining were snowfall, the predetermined threshold value that arranges for snowfall according to TSP when the snowfall that gets access to during greater than described predetermined threshold value, determined that raster data corresponding to described snowfall is the hazardous weather data;
When the Weather information data of obtaining were dense fog concentration, the predetermined threshold value that arranges for dense fog concentration according to TSP when the dense fog concentration that gets access to during greater than described predetermined threshold value, determined that raster data corresponding to described dense fog concentration is the hazardous weather data;
When the Weather information data of obtaining are typhoon, according to TSP for the predetermined threshold value of typhoon setting for having, when then getting access to the Weather information data of typhoon, the raster data that then described typhoon is corresponding is the hazardous weather data.
The screening of above-mentioned Weather information data can be undertaken by the data Filter Engine that TSP provides, and the grid extraction interface that utilizes ArcEngine to provide is finished.
Wherein, the described hazardous weather data of this time point being obtained are stored in the Weather information database of TSP.
103, obtain the center point coordinate of the boundary rectangle of each path unit in the specified path, described path unit is for to divide a plurality of route segments that described specified path obtains according to different designated sizes.
Described specified path is loop wire and main trunk road in intercity highway, advanced road, national highway and the city chosen in advance in the highway in the whole nation or the world.Utilize in the prior art, according to the designated size in the default correspondence table, described specified path is divided into a plurality of path unit (link), wherein said granularity can be not identical on every specified path, the granularity of division of each path unit on the same specified path is not identical yet, can be 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, how many path unit are arranged, how many center point coordinates are just arranged.
104, according to the coordinate data of described center point coordinate and described hazardous weather information data, set up label table, comprise the sign of the path unit that center point coordinate in the coordinate data that is present in described hazardous weather information data is corresponding in the described label table.
With the input of described center point coordinate as ArcEngine, then the grid point value query interface that provides by ArcEngine inquires corresponding grid point value, namely in the coordinate data of described raster data, search described center point coordinate, when having described center point coordinate in the coordinate data at described raster data, illustrate that then described hazardous weather can have influence on the road conditions on path unit corresponding to described center point coordinate.
105, the departure place that sends 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 the described label table in the described path navigation information.
When user terminal is wanted to obtain navigation information, address by input departure place and destination, and choose with reference to weather condition, and the requirement that will obtain navigation information is when sending to described TSP, the then departure place that sends of described TSP receiving terminal, destination and with reference to weather condition, and the departure place that sends according to described label table and terminal, destination and with reference to weather condition, determine path navigation information, and do not comprise the path unit in the described label table in the described path navigation information, then described path navigation information is sent to described terminal.
Described TSP can be stored in described path navigation information in the volatile data base, and can regularly empty the path navigation information that sends to terminal, owing to giving the path navigation information of described terminal nonsensical for other-end, but may exist described terminal to obtain the requirement of navigation information next time, then need according to renewal that this path navigation information and the requirement of obtaining navigation information are remained silent next time, then in the volatile data base of TSP, store described path navigation information, arranged as required by TSP storage time, for example is half an hour.
In described path navigation information, also comprise described hazardous weather information data, when the operating system of described terminal is conventional system, described terminal can be according to described hazardous weather information data, the path unit of dangerous weather is shown in described terminal, for example represent the hazardous location that hazardous weather covers with circle or rectangle frame, when described terminal is when supporting the terminal of vehicle-mounted embedded browser, then described terminal can be according to described hazardous weather information data, the path unit of dangerous weather is shown with irregular profile on described terminal, do not do restriction here.
When described terminal possessed the terminal of TTS (Text to Speech, phonetic synthesis) or correlation function, described terminal can be according to described hazardous weather information data forecast weather conditions.
A kind of path navigation method that the embodiment of the invention provides, carry the raster data of Weather information data according to the Preset Time interval acquiring, when the Weather information data that exist in the described grid greater than predetermined threshold value, determine that described raster data is the hazardous weather information data, according to the center point coordinate of the boundary rectangle of each path unit in the specified path and the coordinate data of described hazardous weather information data, set up label table, then the departure place that sends 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.The embodiment of the invention has solved in the prior art does not carry out combination with weather condition and path navigation, so that the user is by guidance path the time, can not avoid running into boisterous problem, realized when path navigation, can avoid running into boisterous path for the user provides, strengthen the user and experience.
In a kind of implementation of the embodiment of the invention, a kind of path navigation method is provided, as shown in Figure 2, in above-mentioned steps 102, described when the Weather information data that exist in the described grid greater than predetermined threshold value, determine that described raster data is before the hazardous weather information data, described method also comprises:
106, judge the Weather information data that whether exist in described each grid greater than predetermined threshold value.
That describes in the kind of described Weather information data and the above-mentioned steps 102 is consistent, repeats no more herein.
107, when the Weather information data that do not exist in the described grid greater than described predetermined threshold value, with described raster data deletion.
When the Weather information data that do not exist in the described grid greater than described predetermined threshold value, described raster data is deleted from described Weather information database.
In the another kind of implementation of the embodiment of the invention, provide a kind of path navigation method, as shown in Figure 3, in above-mentioned steps 104, described coordinate data according to described center point coordinate and described hazardous weather information data is set up label table, and concrete steps are as follows:
301, the coordinate data in described center point coordinate and the described hazardous weather information data is mated;
302, when finding described center point coordinate in the coordinate data in described hazardous weather information data, the sign of the path unit that described center point coordinate is corresponding is stored in the described label table.
With the input of described center point coordinate as ArcEngine, then the grid point value query interface that provides by ArcEngine inquires corresponding grid point value, namely in the coordinate data of described raster data, search described center point coordinate, when having described center point coordinate in the coordinate data at described raster data, illustrate that then described hazardous weather can have influence on the road conditions on path unit corresponding to described center point coordinate.
The sign that comprises path unit in described label table, described path unit is present in the coordinate data in the described hazardous weather information data for corresponding center point coordinate.
In another implementation of the embodiment of the invention, a kind of path navigation method is provided, as shown in Figure 4, in above-mentioned steps 105, the described departure place that sends according to described label table and terminal, destination and with reference to weather condition, determine path navigation information, do not comprise the path unit in the described label table in the described path navigation information, concrete steps are as follows:
401, with the path unit that exists in the described label table as evading the path, and the described resistance value of evading the path is set to infinity;
402, the departure place that sends according to terminal, destination, with reference to weather condition and the local described label table of preserving, determine path navigation information, do not comprise in the described path navigation information that resistance value is the infinitely-great path of evading.
The path unit that exists in described label table is as after evading the path, the network analysis that calculation pass among the described TSP is held up arranges and can be set to infinity to the described resistance value of evading the path temporarily, network analysis just can not considered the described path of evading according to the resistance value of analyzing, here the existing commercial calculation pass service of holding up has possessed the ability of evading conventional path, belong to prior art, here repeat no more.
When user terminal is wanted to obtain navigation information, address by input departure place and destination, and choose with reference to weather condition, and the requirement that will obtain navigation information is when sending to described TSP, the then departure place that sends of described TSP receiving terminal, destination and with reference to weather condition, and the departure place that sends according to described label table and terminal, destination and with reference to weather condition, determine path navigation information, and do not comprise the path unit in the described label table in the described path navigation information, then described path navigation information is sent to described terminal.
By the path navigation information that said method obtains, can realize when path navigation, for providing, the user can avoid running into boisterous path, and strengthen the user and experience.
Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better embodiment in a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk such as computing machine, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, 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 (10)
1. a path navigation method is characterized in that, comprising:
Carry the raster data of Weather information data according to the Preset Time interval acquiring, described raster data comprises Weather information data and the coordinate data of the designated geographic area of each grid covering, and described coordinate data is used to refer to the designated geographic area that each grid covers;
When the Weather information data that exist in the described grid greater than predetermined threshold value, determine that described raster data is the hazardous weather information data;
Obtain the center point coordinate of the boundary rectangle of each path unit in the specified path, described path unit is for to divide a plurality of route segments that described specified path obtains according to different designated sizes;
According to the coordinate data of described center point coordinate and described hazardous weather information data, set up label table, comprise the sign of the path unit that center point coordinate in the coordinate data that is present in described hazardous weather information data is corresponding in the described label table;
The departure place that sends according to described label table and terminal, destination and with reference to weather condition are determined path navigation information, and described path navigation information are sent to described terminal, do not comprise the path unit in the described label table in the described path navigation information.
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 and 2 is characterized in that, described during when the Weather information data that exist in the described grid greater than predetermined threshold value, determines that described raster data is before the hazardous weather information data, and described method also comprises:
Judge the Weather information data that whether exist in described each grid greater than predetermined threshold value.
4. method according to claim 3 is characterized in that, described method also comprises:
With described hazardous weather information data storing in the Weather information database.
5. method according to claim 3 is characterized in that, described method also comprises:
When the Weather information data that do not exist in the described grid greater than described predetermined threshold value, with described raster data deletion.
6. method according to claim 3 is characterized in that, described coordinate data according to described center point coordinate and described hazardous weather information data is set up label table and comprised:
Coordinate data in described center point coordinate and the described hazardous weather information data is mated;
When finding described center point coordinate in the coordinate data in described hazardous weather information data, the sign of the path unit that described center point coordinate is corresponding is stored in the described label table.
7. method according to claim 1 is characterized in that, described method also comprises:
The departure place that receiving terminal sends, destination and with reference to weather condition.
8. method according to claim 7, it is characterized in that, path navigation information is determined in the described departure place that sends according to described label table and terminal, destination and with reference to weather condition, does not comprise in the described path navigation information that the path unit in the described label table comprises:
As evading the path, and the described resistance value of evading the path is set to infinity with the path unit that exists in the described label table;
The departure place that sends according to terminal, destination, with reference to weather condition and the local described label table of preserving, determine path navigation information, do not comprise in the described path navigation information that resistance value is the infinitely-great path of evading.
9. method according to claim 8 is characterized in that, described method comprises:
Described path navigation information is stored in the volatile data base.
10. method according to claim 9 is characterized in that, also comprises described hazardous weather information data in the described path navigation information.
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| CN103824467A (en) * | 2013-12-18 | 2014-05-28 | 招商局重庆交通科研设计院有限公司 | Reservation type traffic navigation service method and apparatus for private vehicle |
| CN104977015A (en) * | 2015-03-27 | 2015-10-14 | 腾讯科技（深圳）有限公司 | Method and apparatus for route navigation |
| 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 |
| CN107727108A (en) * | 2017-09-30 | 2018-02-23 | 百度在线网络技术（北京）有限公司 | The recommendation method, apparatus and computer-readable medium of transit trip route |
| 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 |
| 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 |
| 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 |
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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 |
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| 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 |
| CN107727108A (en) * | 2017-09-30 | 2018-02-23 | 百度在线网络技术（北京）有限公司 | The recommendation method, apparatus and computer-readable medium of transit trip route |
| 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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