CN104344824A

CN104344824A - Satellite-positioning multifunctional information navigation method

Info

Publication number: CN104344824A
Application number: CN201310158038.7A
Authority: CN
Inventors: 朱孝杨
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-08
Filing date: 2013-08-08
Publication date: 2015-02-11

Abstract

The invention discloses a satellite-positioning multifunctional information navigation method. The method can trace the changes of the topological structure of streets around a current position, then automatically adjusts the searching radius according to the street lengths and topological structure characteristics, achieves the orientation of a designated direction, and automatically shields the searches on directions that are not needed.

Description

Satnav multifunctional information air navigation aid

Technical field

Patent of the present invention relates to a kind of Satellite Navigation Technique, particularly a kind of change can following the tracks of current location periphery street topology structure, feature according to the street length in all directions and topological structure adjusts search radius automatically, and the orientation of assigned direction can be realized, automatic shield does not need the satnav multifunctional information air navigation aid of the Search Results in direction.

Background technology

At present linear vector search engine traditional in the world automatically cannot follow the change of avenue topology and automatically adjust the problem of search radius, hunting zone can only cover a regular circle shapes or rectangular area and accurately cannot cover the irregular geometry graphics field that embodies best search effect, traditional linear vector search engine can only carry out faceted search simultaneously, and cannot realize accurate beam search and target localization.This means that traveler needs oneself in a large amount of Search Results, to be optimized screening to Search Results, the road name combined when position periphery is even needed to be optimized screening, bring very large inconvenience when inquiring about peripheral information not only to traveler, simultaneously if in a strange place and the guideboard at crossing disappearance or not in obvious place, traveler also cannot judge the position at the result place of search accurately.In order to address these problems, we have proposed the change can following the tracks of current location periphery street topology structure, feature according to the street length in all directions and topological structure adjusts search radius automatically, and the orientation of assigned direction can be realized, automatic shield does not need the satnav multifunctional information navar technical solution of the Search Results in direction.

Summary of the invention

The object of this invention is to provide one and overcome above-mentioned deficiency, the change of current location periphery street topology structure can be followed the tracks of, feature according to the street length in all directions and topological structure adjusts search radius automatically, and the orientation of assigned direction can be realized, automatic shield does not need the satnav multifunctional information air navigation aid of the Search Results in direction.

The technical scheme realizing the object of the invention is: a kind of satnav multifunctional information air navigation aid, according to the geographic position of current continuous change realize to surrounding cities along the street with the search of public information, simultaneously can adaptively from the change of motion tracking current location periphery street topology structure under the support of electronic digit map in search procedure, and by intelligently obtaining a best hunting zone to the topological structure in current location periphery street and the intelligent comprehensive analysis of target distribution situation, and to Search Results, automatic optimal screening is carried out to the comfort level that Search Results goes to according to the Distance geometry gone to.

Above-mentioned satnav multifunctional information air navigation aid only can carry out beam search to specific direction, and all information on automatic shield non-search direction, the information type simultaneously can also selected according to user carries out automatic classification screening to information.

The present invention has positive effect:

(1) social benefit:

Propose a kind of brand-new geography information search technique and thereby produce a kind of brand-new navigation Service form---" information navigation ", makes the search of the geography information of China reach advanced world standards.

(2) economic benefit:

The standard configuration that Future Satellite location navigation becomes automobile will be trend of the times, up-to-date data display, and the popularity rate of american car satellite positioning navigation instrument is 65%, reaches 73% and 76% respectively in the popularity rate of European Union member countries and Japan.Automobile pollution by comparison at the end of China to " 12 " will reach 1.5 hundred million, but the popularity rate of vehicle satellite location navigator is less than 10%, therefore there is huge market development space.

On the other hand, along with 3G smart mobile phone and the various personal mobile information terminal based on 3G start to popularize, satellite positioning navigation market will no longer only be confined to traditional vehicle mounted guidance, according to national statistics data, national state in 2012 trip number of only travelling just reaches 29.57 hundred million person-times, 12.0% is increased than last year, wherein strange land tourist arrivals is 7.7 hundred million person-times, local tourist arrivals is 21.87 hundred million person-times, simultaneously because China has mobile phone colony maximum in the world, predict according to Ministry of Industry and Information, the 3G smart mobile phone recoverable amount of the five-year China reaches to 700,000,000, therefore the market demand of the diversification city satellite positioning navigation service of trip and consumer applications is comprised by various 3G acquisition for mobile terminals such as 3G smart mobile phones by the growth of blasting property.And enforcement of the present invention can help motorist to avoid blocking up section effectively, therefore comparison receives the welcome of motorist.Calculate with every Zhong Duan $20 unit, the market capacity Da Dao $150 hundred million yuan of the five-year.

Accompanying drawing explanation

In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein

Fig. 1: avenue distributed data base form;

Fig. 2: city is information database form along the street;

Fig. 3: shown information distribution list.

Embodiment

Be described as follows referring now to accompanying drawing in conjunction with the embodiments:

1. according to the geographic position of current continuous change, the change of current location periphery street topology structure is dynamically followed the tracks of under the support of electronic digit map, and pass through the topological structure in current location periphery street and the intelligent comprehensive analysis of target distribution situation, comprise and automatically adjust search radius according to the feature of the street length in all directions and topological structure, form the implementation method of a best hunting zone:

1) under the support of electronic digit map, the change of current location periphery street topology structure is dynamically followed the tracks of: in electronic digit map, obtain current place according to current satnav street or crossing: if on street, then centered by the crossing of street two, current place end, by the avenue distributed data base form shown in Fig. 1, the section of this crossing direct correlation is obtained by the corresponding relation in crossing and direct correlation section, and the various parameters relevant to these sections, comprise section towards, the length in section, the satellite positioning location longitude and latitude of section two end corner, separate with Chinese comma or any other symbol between multiple association section and between multiple similar parameter.If at crossing, then centered by this crossing, by the avenue distributed data base form shown in Fig. 1, the section of this crossing direct correlation is obtained by the corresponding relation in crossing and direct correlation section, and the various parameters relevant to these sections, comprise section towards, the length in section, the satellite positioning location longitude and latitude of section two end corner;

2) to the topological structure in current location periphery street and the intelligent comprehensive analysis of target distribution situation: according to the section of the place street two end crossing direct correlation obtained, by the information database form along the street of the city shown in Fig. 2, the information along the street on these sections is obtained according to the corresponding relation of section title and information along the street, and the various parameters relevant to these information, comprise the type of information, title, main management, address, satellite positioning location longitude and latitude, and form an information distribution list as shown in Figure 3 to according to the type of these information and section, place, information sorting in information list carries out in units of section, place, namely the information on same section comes together, separate with symbol " ^ " between different information.The section list at institute's acquisition information distribution place is called information space;

3) automatically search radius is adjusted according to the feature of the street length in all directions and topological structure: when searching for the information in information space with radii fixus, search radius also needs the length in each section in reference information space, if search radius exceedes the length in searched section, the search radius on this section automatically will be reduced, until only cover this section.Otherwise, if the length in the section searched for is less than the length in searched section, then need automatically to increase search radius until cover whole section.After obtaining the search radius on each direction, section, the information that the section title covered according to search radius obtains on these sections by Fig. 3 forms Search Results, or according to Fig. 3, what the satnav longitude and latitude position of the information point wherein along the street in information field on each section was less than search radius to the air line distance of user's current location is all Search Results.

4) naming method in section: section, place ~ left phase cross-channel-right phase cross-channel.List separator " ~ " wherein and "-" also can be other arbitrary symbols.

5) naming method at crossing: section, place phase cross-channel.List separator "@" wherein also can be other arbitrary symbols.

2. go to the comfort level of Search Results to be optimized sequence according to the Distance geometry of Search Results distance current location from current location, list wherein recently and all best 10 of the comfort level of going to, show the implementation method of which Search Results ranked the first simultaneously:

1) comfort level of Search Results is gone to be optimized sequence according to the Distance geometry of Search Results distance users current location from current location: to sort to the distance of searching for the result distance users current location obtained, simultaneously again according to going to the comfort level of searching for the result obtained to sort from user's current location, the bat the first of nearest comfort level the best, different apart from identical but comfort level is preferential with comfort level.When judging distance is far and near, the resolution of distance is 20 meters, i.e. two objects, distance users current location 10 meters and another distance 15 meters, then the far and near distance of this two objects distance users current location is identical.

2) the sequence rule of the comfort level of target location is gone to: the street at the place of user position is first preferential, the street of the place street of user position is second preferential, other priorities by go to from current location wait for traffic required for target street number for according to sorting.If need the traffic signals quantity of wait identical, then to go to the distance in target street to sort from current location.

3) can be air line distance from current location to the distance in target information position or target street also can be actual walking distance.The unit of distance is rice.The calculating of distance is obtained by the range formula of point to point or other general computing formula.

Satnav multifunctional information navar technology of the present invention, be further characterized in that can only to mobile terminal specific towards direction carry out beam search, and the unwanted information type of automatic shield:

1) directly call detection of handset in smart mobile phone towards compass control obtain current mobile phone towards.By aforementioned 1-1), 1-2) and method 1-3) obtain information space, and obtain from information space the section of current position periphery and these sections towards, calculate current phone towards and these sections towards between angle, and sort by order from small to large, two sections finding wherein angle minimum, calculate the angle of the route of going to these two sections from current location, wherein angle and current phone are exactly the section need carrying out searching for towards that identical section simultaneously.

2) in the database table of diagram 3, obtain all information on this section according to the section title of required search, then according to the information needed type of user's setting, information is screened automatically.

3) mobile phone towards the compass software indication current phone referred on smart mobile phone towards the angle between direct north righter turn 90 degrees after direction.

4) car lane stood in towards street central authorities on this road road towards finger in section, then the right side turn 90 degrees angle that is rear and horizontal direction.

The route angle of target road section is gone to refer to from the line between current location and target location and the angle between horizontal direction from current location, the linear equation consisted of current location and 2, target location obtains, and the K that namely angle equals in linear equation Y=KX+C converts angle to.

Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a satnav multifunctional information air navigation aid; It is characterized in that: according to the geographic position of current continuous change realize to surrounding cities along the street with the search of public information, simultaneously can adaptively from the change of motion tracking current location periphery street topology structure under the support of electronic digit map in search procedure, and by intelligently obtaining a best hunting zone to the topological structure in current location periphery street and the intelligent comprehensive analysis of target distribution situation, and to Search Results, automatic optimal screening is carried out to the comfort level that Search Results goes to according to the Distance geometry gone to.

2. satnav multifunctional information air navigation aid according to claim 1, it is characterized in that: only can carry out beam search to specific direction, and all information on automatic shield non-search direction, the information type simultaneously can also selected according to user carries out automatic classification screening to information.