CN104330081A - Descriptive position prompt message generation method and device - Google Patents
Descriptive position prompt message generation method and device Download PDFInfo
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- CN104330081A CN104330081A CN201410543063.1A CN201410543063A CN104330081A CN 104330081 A CN104330081 A CN 104330081A CN 201410543063 A CN201410543063 A CN 201410543063A CN 104330081 A CN104330081 A CN 104330081A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/005—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 with correlation of navigation data from several sources, e.g. map or contour matching
Abstract
The embodiment of the invention provides a descriptive position prompt message generation method and device, and the method is as follows: locating position points in an electronic map of a current terminal; determining the first direction of the current terminal; on the basis of street view data, finding information of one or more interest points contained in a preset range; and generating a descriptive position prompt message by combination of the first direction of the current terminal and the information of one or more interest points. The descriptive position prompt message generated by the descriptive position prompt message generation method and device provides a user simple and intuitive location description, greatly improves the practicability of the location service, the current position can be quickly informed, continuous locating of the user can be avoided, and the consumption of system resources and cyber sources can be reduced.
Description
Technical field
The present invention relates to electronic map technique field, be specifically related to a kind of generation method of descriptive position indicating information and a kind of generating apparatus of descriptive position indicating information.
Background technology
Along with GPS (Global Positioning System, GPS) application is more and more extensive, based on various location-based services (the such as Location Based Services in geographic position, LBS) also fast-developing, as individual position's positioning service, path navigation service, Perimeter service etc., the development of LBS brings many facilities to the work of people and life.
When user's utilization provides the application program of geo-location service to position, application program cannot accurately be located, and usually can only provide the Position Approximate residing for user or location expression information.
Such as, when user utilize on bright Ma Qiao provide the electronic chart of geo-location service to position time, generally can only provide a point and represent current position on electronic chart.
As above-mentioned too wide in range to put locative location expression, positioning precision is very poor, and user can only judge position by oneself geographical perception, and positioning action is complicated.
But the plane picture that electronic chart generally provides, in a lot of situation, the scene that the plane picture that user provides according to electronic chart and reality are seen also misfits.
The plane that some user provides according to electronics, when arriving outdoor especially indoor, often cannot accurately judge present position orientation or towards, particularly for the user that those senses of direction are poor, they often seem very vast and hazy, effectively cannot know the geographic position or orientation information being convenient to understand.。
Summary of the invention
In view of the above problems, the present invention is proposed to provide a kind of overcoming the problems referred to above or the generation method of a kind of descriptive position indicating information solved the problem at least in part and the generating apparatus of corresponding a kind of descriptive position indicating information.
According to one aspect of the present invention, provide a kind of generation method of descriptive position indicating information, comprising:
Location point in the electronic chart at present terminal place, location;
Determine the first direction faced by present terminal;
Based on streetscape data to search the one or more interest point informations comprised in preset range;
In conjunction with the first direction faced by described present terminal, and described one or more interest point information, generate descriptive position indicating information.
Alternatively, the step of the location point in the electronic chart at present terminal place, described location comprises:
By the location point of mixed positioning mode determination present terminal in electronic chart;
Wherein, described mixed positioning mode comprises following at least one:
Satnav mode, Wireless Fidelity locator meams, architecture mode, cell ID locator meams, advanced forward link triangle polyester fibre mode.
Alternatively, describedly determine that the step of the first direction faced by present terminal comprises:
First direction faced by current by the alignment sensor acquisition in present terminal;
Wherein, described alignment sensor comprises following at least one:
Gyroscope, electronic compass, GPS.
Alternatively, described preset range comprises the visual scope based on streetscape data.
Alternatively, describedly to comprise with the step of searching the one or more interest point informations comprised in preset range based on streetscape data:
In described electronic chart centered by described location point position, to determine with described center based on the visual scope of streetscape data for preset range;
One or more interest point information is searched in described preset range.
Alternatively, the first direction described in described combination faced by present terminal, and described one or more interest point information, the step generating descriptive position indicating information comprises:
Coordinate system is built based on described first direction;
Calculate described one or more interest point information in described coordinate system, relative to the azimuth information of described location point;
Identify the address location at described location point place;
Gather described azimuth information and described address location generates descriptive prompting positional information.
Alternatively, the described step based on described first direction structure coordinate system comprises:
With described location point for initial point, build coordinate system along described first direction and second direction; Described second direction be the direction vertical with described first direction.
Alternatively, the described one or more interest point information of described calculating, in described coordinate system, comprises relative to the step of the azimuth information of described location point:
The angle that calculating Eigenvector and described coordinate system are formed; Described Eigenvector is the line segment that described location point and described one or more interest point information are formed;
The orientation belonging to described angle is searched in the azimuth information table preset.
According to a further aspect in the invention, provide a kind of generating apparatus of descriptive position indicating information, comprising:
Locating module, is suitable for the location point of locating in the electronic chart at present terminal place;
Determination module, is suitable for the first direction determined faced by present terminal;
Search module, be suitable for based on streetscape data to search the one or more interest point informations comprised in preset range;
Generation module, is suitable in conjunction with the first direction faced by described present terminal, and described one or more interest point information, generates descriptive position indicating information.
Alternatively, described locating module is also suitable for:
By the location point of mixed positioning mode determination present terminal in electronic chart;
Wherein, described mixed positioning mode comprises following at least one:
Satnav mode, Wireless Fidelity locator meams, architecture mode, cell ID locator meams, advanced forward link triangle polyester fibre mode.
Alternatively, described determination module is also suitable for:
First direction faced by current by the alignment sensor acquisition in present terminal;
Wherein, described alignment sensor comprises following at least one:
Gyroscope, electronic compass, GPS.
Alternatively, described preset range comprises the visual scope based on streetscape data.
Alternatively, search module described in be also suitable for:
In described electronic chart centered by described location point position, to determine with described center based on the visual scope of streetscape data for preset range;
One or more interest point information is searched in described preset range.
Alternatively, described generation module is also suitable for:
Coordinate system is built based on described first direction;
Calculate described one or more interest point information in described coordinate system, relative to the azimuth information of described location point;
Identify the address location at described location point place;
Gather described azimuth information and described address location generates descriptive prompting positional information.
Alternatively, described generation module is also suitable for:
With described location point for initial point, build coordinate system along described first direction and second direction; Described second direction be the direction vertical with described first direction.
Alternatively, described generation module is also suitable for:
The angle that calculating Eigenvector and described coordinate system are formed; Described Eigenvector is the line segment that described location point and described one or more interest point information are formed;
The orientation belonging to described angle is searched in the azimuth information table preset.
Location point in the electronic chart at present terminal place, embodiment of the present invention location, and the first direction faced by present terminal, based on streetscape data to search the one or more interest point informations comprised in preset range, in conjunction with the first direction faced by described present terminal, and one or more interest point information, generate descriptive position indicating information, the descriptive information generated based on this provides simple to user, positioning describing intuitively, be convenient to geographic position or the orientation information of understanding, substantially increase the practicality of positioning service, know current residing position fast, avoid user constantly to position or by the situation of other means inquiring position information again, reduce the consumption of system resource and Internet resources.
The embodiment of the present invention sets up coordinate system using self as reference system, to user's sense of direction the most intuitively, improve the simplicity of positioning action, positioned by the orientation of navigation object, carry out reference with one or more adminicle, substantially increase degree of accuracy and the success ratio of location.
The embodiment of the present invention based on streetscape data to search the one or more interest point informations comprised in preset range, set out with the visual angle of user and need look for the interest point information that practicality is high, considerably increase the probability that user finds point of interest in actual environment, further increase success ratio and the efficiency of location.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of instructions, and can become apparent, below especially exemplified by the specific embodiment of the present invention to allow above and other objects of the present invention, feature and advantage.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 diagrammatically illustrates a kind of according to an embodiment of the invention flow chart of steps of generation embodiment of the method for descriptive position indicating information;
Fig. 2 A and Fig. 2 B diagrammatically illustrates a kind of according to an embodiment of the invention exemplary plot of positioning action;
Fig. 3 diagrammatically illustrates a kind of according to an embodiment of the invention exemplary plot of terminal;
Fig. 4 diagrammatically illustrates a kind of according to an embodiment of the invention exemplary plot of streetscape;
Fig. 5 diagrammatically illustrates a kind of according to an embodiment of the invention classification exemplary plot of four orientation;
Fig. 6 diagrammatically illustrates a kind of according to an embodiment of the invention display exemplary plot of descriptive information; And
Fig. 7 diagrammatically illustrates a kind of according to an embodiment of the invention structured flowchart of generating apparatus embodiment of descriptive position indicating information.
Embodiment
Below with reference to accompanying drawings exemplary embodiment of the present disclosure is described in more detail.Although show exemplary embodiment of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment set forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
With reference to Fig. 1, diagrammatically illustrate a kind of according to an embodiment of the invention flow chart of steps of generation embodiment of the method for descriptive position indicating information, specifically can comprise the steps:
Step 101, the location point in the electronic chart at present terminal place, location;
It should be noted that, the embodiment of the present invention can be applied in general terminal, such as mobile phone, vehicle mounted guidance, PDA (Personal Digital Assistant, personal digital assistant), laptop computer, panel computer etc., the embodiment of the present invention is not limited this.
These terminals can support the operating system such as Windows, Android (Android), IOS, WindowsPhone, and this operating system can support the operation of electronic chart usually.
Electronic chart, i.e. numerical map, can refer to utilize computer technology, store and the map consulted in a digital manner, general Distribution GIS (Geographic Information System) stores and transmits map datum, but other infosystem also can be adopted to store and transmit map datum, and the embodiment of the present invention is not limited this.
Electronic chart generally uses vector mode image storage map datum, and map scale is enlarging or reducing or rotate and do not affect display effect.
Electronic chart can be formed with multiple layer when drawing to match, the layer of electronic chart can comprise Fundamental Geographic Information System (such as river, mountains and rivers, Plain etc.), urban infrastructure building and roading information, POI (Point of Interest, point of interest) markup information etc.
In a kind of embodiment of the present invention, step 101 can comprise following sub-step:
Sub-step S11, by the location point of mixed positioning mode determination present terminal in electronic chart;
In embodiments of the present invention, if user uses terminal to position, then can obtain the location point of present terminal in electronic chart by mixed positioning mode, to improve the degree of accuracy of location point location.
Wherein, this location point can be the coordinate in electronic chart, specifically can comprise latitude and longitude coordinates.
In an example of the embodiment of the present invention, as shown in Figure 2 A, user is positioned by terminal, can determine the location point 201 in electronic chart.
Described mixed positioning mode can be positioned by one or more locator meamss, specifically can comprise following at least one:
Satnav mode, Wireless Fidelity locator meams, architecture mode, cell ID locator meams, advanced forward link triangle polyester fibre mode.
The position signalling of terminal can be sent to backstage, location and position by satnav mode.Current spendable global position system comprises GPS, GLONASS, dipper system, Galileo system etc.
The signal intensity that Wireless Fidelity (WIFI) locator meams can send according to the WIFI hot spot being deployed in each place and global unique mac address (Media Access Control Address, media access control address, or be called hardware address, the position for define grid equipment) position.
Architecture mode can be utilize the base station of operator (as mobile operator, operator of UNICOM, telecom operators etc.) to the measuring and calculating distance of the distance of terminal to determine the position of terminal.
Cell ID (Cell ID) locator meams can by the cell id (can estimate according to the base station of service) residing for wireless network (as cellular network) reporting terminal, and location service platform translates into latitude and longitude coordinates cell id.
Advanced forward link triangle polyester fibre mode (AFLT) is when positioning operation, terminal monitors the pilot frequency information of multiple base station (at least 3 base stations) simultaneously, utilize chip time delay to determine that terminal arrives the distance of neighbouring base station, finally calculate the position of terminal with triangulation location.
In specific implementation, can satnav mode, architecture mode, Wireless Fidelity locator meams etc., then in conjunction with other several locator meams, as cell ID locator meams, advanced forward link triangle polyester fibre mode etc., position.Such as, the mixed positioning mode that mobile phone can use satnav mode, architecture mode, Wireless Fidelity locator meams combine positions.
Certainly, just exemplarily, when implementing the embodiment of the present invention, can arrange other mixed positioning modes according to actual conditions, the embodiment of the present invention is not limited this above-mentioned mixed positioning mode.In addition, except above-mentioned mixed positioning mode, those skilled in the art can also adopt other mixed positioning mode according to actual needs, and the embodiment of the present invention is not also limited this.
Step 102, determines the first direction faced by present terminal;
In actual applications, as shown in Figure 3, the direction shown in arrow 302 for terminal (mobile phone) 301 current faced by direction.Due to operating habit, user when using electronic chart 303 to locate, the general user oriented of the screen 304 of terminal (mobile phone) 301, then terminal (mobile phone) 301 current towards direction, be also generally user current towards direction.
In an example of the embodiment of the present invention, as shown in Figure 2 A, the direction of arrow in location point 201 can first direction faced by present terminal.
In a kind of embodiment of the present invention, step 102 can comprise following sub-step:
Sub-step S12, the first direction faced by current by the alignment sensor acquisition in present terminal;
In embodiments of the present invention, can integrated positioning sensor in terminal, if user uses terminal to position, then can obtain first direction faced by present terminal by alignment sensor.
Wherein, described alignment sensor can comprise following at least one:
Gyroscope, electronic compass, GPS.
Gyroscope can reach measured angular speed, angular velocity is carried out to the integration of time, can obtain the angle that terminal tilts.If a given initial direction, then can calculate current direction in conjunction with the angle of inclination.
Electronic compass, usually can by two resolute value determination orientation values, the specifically Azimuth=arcTans (Y/X) of terrestrial magnetic field in X-axis and Y-axis when horizontal level, and wherein, Azimuth is the angle of current direction and magnetic north.When tilting, slope compensation can be carried out by acceleration transducer, with computer azimuth value.
GPS exports WGS-84 rectangular space coordinate, converts thereof into topocentric coordinates, according to the coordinate difference that GPS records, just can measure position angle.
In specific implementation, in some cases, electronic compass can be combined with gyroscope and obtain current direction; In some cases, some terminal (as mobile phone) does not have gyroscope, then electronic compass can be used to obtain current direction; In some cases, if terminal opens GPS, then GPS can be mainly used to obtain current direction, etc.
Certainly, just exemplarily, when implementing the embodiment of the present invention, can arrange other alignment sensors according to actual conditions, the embodiment of the present invention is not limited this above-mentioned alignment sensor.In addition, except above-mentioned alignment sensor, those skilled in the art can also adopt other alignment sensor according to actual needs, and the embodiment of the present invention is not also limited this.
Step 103, based on streetscape data to search the one or more interest point informations comprised in preset range;
Navigation object can be adopted in the embodiment of the present invention to assist and to determine current azimuth information, specifically can comprise arbitrary object in electronic chart.
Conveniently user identifies, this navigation object can be interest point information POI, such as, and hotel, dining room, supermarket etc.
Certainly, this navigation object also can based on geography information (such as river, mountains and rivers, Plain etc.), urban infrastructure building and roading information etc., the embodiment of the present invention is not limited this.
In a kind of embodiment of the present invention, described preset range can comprise the visual scope based on streetscape data, i.e. the scope that can observe of view-based access control model.
Then in embodiments of the present invention, step 103 can comprise following sub-step:
Sub-step S31, in described electronic chart centered by described location point position, to determine with described center based on the visual scope of streetscape data for preset range;
It should be noted that, the resolution characteristic of the eyes of people is limited, and difference is very large, and affected by environment, its visual scope is also not quite similar, and the embodiment of the present invention can set according to actual conditions.
In desirable spacious environment, time fine, a people can see that the maximum distance in sea is r (unit: km), available formula r
2=16.88h estimates, wherein, h is the height (unit: m) of eyes plane off sea.Take r as radius, according to area formula S=π × (r^2) of circle, current visual scope S can be calculated.
Under the environmental factors such as haze, dusk, rainy day, night, visibility can decline, and visual scope can reduce.And under user's factors such as eyesight, weak-eyed user, its visual scope is less, clear-eyed user, and its visual scope is larger.Then in such cases, can at formula r
2on the basis of=16.88h, according to environmental factors such as haze, dusk, rainy day, nights, and user's factors such as eyesight compensate, estimation r.
In the environment such as cities and towns, due to blocking of buildings, user often can not observe the navigation object in optimal visual scope.Then in such cases, visual scope can be judged in conjunction with streetscape.
Specifically, streetscape is generally the service based on outdoor scene that electronic chart provides, and can show 360 degree of panoramic pictures of selected urban street (rural area, field environment etc.), this panoramic picture can comprise day images and night scene image.
Streetscape is generally taken in each cities and towns by special streetscape car, then 360 degree of shoot on location photos is placed on for user in electronic chart, and user can obtain map view as if on the spot in person by this service and experience.
In an example of the embodiment of the present invention, the streetscape shown in Fig. 4 is the streetscape that in Fig. 2 A, location point 201 is captured in the direction of the arrow, is also equivalent to the streetscape that active user can see.
In the embodiment of the present invention, can search from streetscape farthest, can clearly navigation object be distinguished, with current location point for the center of circle, current location point and the distance of this navigation object are that radius builds circular visual scope.
In an example of the embodiment of the present invention, scope 202 as shown in Figure 2 A can be current visual scope, i.e. preset range.
Certainly, just exemplarily, when implementing the embodiment of the present invention, can arrange other preset range according to actual conditions, the preset range of such as rectangle, leg-of-mutton preset range etc., the embodiment of the present invention is not limited this above-mentioned preset range.
Sub-step S32, searches one or more interest point information in described preset range.
In specific implementation, this navigation object (such as interest point information POI) can comprise many-sided information, such as title, classification, longitude, latitude etc.
In the embodiment of the present invention, the spatial relationship of spatial relationship geometric algorithm to navigation object and preset range can be adopted to analyze, to judge navigation object whether in preset range.Spatial relationship refers to that some existence between geographical entity have the relation of spatial character, and one of core of Distribution GIS is spatial analysis, and spatial relationship is then the basis of spatial analysis and inquiry.
In order to describe the relation between various geographical entity, need these geographical entities to be embedded in a coordinate space, the control model of this coordinate can be theorem in Euclid space.According to the difference of spatial data handling applied environment, may be 2 dimension theorem in Euclid space, also may be 3 dimension theorem in Euclid space.In 2 dimension theorem in Euclid space, geographical entity key element is embedded wherein, defines 3 class geographic element objects, namely put object, line object and in the face of resembling.Therefore, can be 6 kinds of situations simply by the spatial relation description in Distribution GIS between geometric object: a point/relation, point/line relation, point/face relation, line/line relation, line/face relation, face/face relation.
In practice, 5 kinds of basic spatial relationships can be defined: from relation (Disjoint), the relation that connects (touch), pass through relation (Cross), in internal relations (Within), overlapping relation (Overlap), and be the minimal set of spatial relationship by these 5 kinds of contextual definitions.
In the invention process, the spatial relationship of navigation object and preset range can be described as a little/face relation, if the spatial relationship of navigation object and preset range is in internal relations (Within) or the relation that connects (touch) or overlapping relation (Overlap), then can judge that navigation object is in preset range territory, if the spatial relationship of navigation object and preset range is from relation (Disjoint), then can judge that navigation object is not in preset range.
In an example of the embodiment of the present invention, in the scope 202 shown in Fig. 2 A, multiple navigation object (as interest point information POI) can be found out, comprise club 203, dining room 204, restaurant 205, apartment 206, commemorate statue 207, supermarket 208 etc.
The embodiment of the present invention based on streetscape data to search the one or more interest point informations comprised in preset range, set out with the visual angle of user and need look for the interest point information that practicality is high, considerably increase the probability that user finds point of interest in actual environment, further increase success ratio and the efficiency of location.
Step 104, in conjunction with the first direction faced by described present terminal, and described one or more interest point information, generate descriptive position indicating information.
Descriptive prompting positional information, can be the information by least one in the prompting present orientation information such as descriptive word, sound and address location, determine the orientation of present position with assisted user.
In a kind of embodiment of the present invention, step 104 can comprise following sub-step:
Sub-step S41, builds coordinate system based on described first direction;
In embodiments of the present invention, the coordinate system relative to terminal (being equivalent to user) can be built, using terminal (being equivalent to user) as reference system.
In a kind of alternate exemplary of the embodiment of the present invention, sub-step S41 can comprise following sub-step:
Sub-step S411, with described location point for initial point, builds coordinate system along described first direction and second direction; Described second direction be the direction vertical with described first direction.
In the embodiment of the present invention, coordinate axis can be set up along first direction and second direction respectively, build plane right-angle coordinate (abbreviation rectangular coordinate system).
In an example of the embodiment of the present invention, as shown in Figure 2 B, with location point 201 for initial point, set up X-axis 209 along first direction (direction namely indicated by triangle), set up Y-axis 210 along second direction.
Certainly, except rectangular coordinate system, the embodiment of the present invention can also build other coordinate systems, such as three-dimensional system of coordinate (as cartesian coordinate system, cylindrical-coordinate system, spheric coordinate system etc.), and the embodiment of the present invention is not limited this.
Sub-step S42, calculates described one or more interest point information in described coordinate system, relative to the azimuth information of described location point;
In specific implementation, using terminal (being equivalent to user) as reference system, can calculate the azimuth information of navigation object relative to terminal (being equivalent to user), i.e. position, direction, take user as reference system, to user's sense of direction intuitively.
In a kind of alternate exemplary of the embodiment of the present invention, sub-step S42 can comprise following sub-step:
Sub-step S421, the angle that calculating Eigenvector and described coordinate system are formed; Described Eigenvector is the line segment that described location point and described one or more interest point information are formed;
Sub-step S422, searches the orientation belonging to described angle in the azimuth information table preset.
Orientation can be the order of entity in geographical space, as left and right, the four corners of the world etc., is the one tolerance describing position relationship between two articles, also claims dimensional orientation, often represent with angle.
In specific implementation, this Eigenvector can form angle with the X-axis of plane right-angle coordinate, also can form angle with Y-axis, and can also form angle with the coordinate axis of other coordinate systems, the embodiment of the present invention is not limited this.
In an example of the embodiment of the present invention, as shown in Figure 2 B, location point 201 and navigation object 204 morphogenesis characters line segment 211, the angle that this Eigenvector 211 and X-axis 209 are formed is θ.
Because the coordinate of the coordinate of location point, navigation object is known, namely the length of Eigenvector can be calculated, and the direction of coordinate axis is also known in coordinate system, then can according to trigonometric function (as sine, cosine, tangent, cotangent, secant, cosecant etc.) calculate Eigenvector and coordinate system the angle that formed.
The application embodiment of the present invention, can pre-set azimuth information table, can record orientation and belong to the angular range in this orientation in this orientation information table.If this angle falls in certain angular range, then this angle belongs to the orientation of this angular range association.
In geoanalysis, often do not need to carry out quantitative description to orientation, simpler and be easier to understand sometimes to the qualitative description in orientation.The directional terminology such as general front, rear, left and right, south, north, east, west carry out semantic description, are a kind of fuzzy concepts, describe qualitatively.
Such as, as shown in Figure 5, if application four bearing classifications, positive east E is identical with first direction, and angle is the angle of the coordinate axis at Eigenvector and first direction place, then azimuth information table can be as shown in the table:
| Angle theta | Orientation |
| θ＝0° | Positive east (dead ahead) E |
| 0°＜θ＜90° | North-east (left front) NE |
| θ＝90° | The positive north (front-left) N |
| 90°＜θ＜180° | Northwest (left back) NW |
| θ＝180° | Positive west (dead astern) W |
| 180°＜θ＜270° | Southwest (right back) SW |
| θ＝270° | Due South (front-right) S |
| 270°＜θ＜360° | The southeast (right front) SE |
Certainly, the embodiment of the present invention can also adopt the space such as eight fraction positions, 16 points of positions, 32 fraction positions to divide a mode, and the embodiment of the present invention is not limited this.
In an example of the embodiment of the present invention, if apply the azimuth information table of above-mentioned four bearing classifications, in fig. 2b, club 203 and dining room 204 are positioned at the north-east (left front) of location point 201, restaurant 205 is positioned at northwest (left back) of location point 201, apartment 206 and souvenir statue 207 are positioned at the southwest (right back) of location point 201, and supermarket 208 is positioned at the southeast (right front) of location point 201.
Generally speaking, the plane picture provided due to electronic chart is very not identical with the real scene seen, therefore, user wants to judge current residing position, often combines actual scenery and judges.But user is difficult to the orientation told in reality, especially for the user being bad at geographic direction judgement, severe patient is even hard to tell all directions.
The embodiment of the present invention self builds coordinate system as reference system using terminal (being equivalent to user), calculate the orientation of actual scenery relative to terminal (being equivalent to user) self, simple qualitative description can be carried out to orientation with left-right and front-back etc., and most users all can tell left-right and front-back, in numerous actual scenery, if can be told one of them, then can locate current residing position, greatly reduce the difficulty of location.
The embodiment of the present invention sets up coordinate system using self as reference system, to user's sense of direction the most intuitively, improve the simplicity of positioning action, positioned by the orientation of navigation object, carry out reference with one or more adminicle, substantially increase degree of accuracy and the success ratio of location.
Sub-step S43, identifies the address location at described location point place;
In specific implementation, can by the geographic position at inverse geocoding recognizing site point place.
Inverse geocoding is for geocoding.
Geocoding service, i.e. matching addresses, from the conversion of the latitude and longitude coordinates of known address descriptor conversion correspondence, namely according to address information, can inquire about the point coordinate etc. corresponding to this address.
Inverse geocoding can be address resolution service, specifically refers to the Transformation Service from known latitude and longitude coordinates (location point can provide) to corresponding address descriptor (as provinces and cities, block, floor, room etc.).
In an example of the embodiment of the present invention, the location point 201 shown in Fig. 2 A, by inverse geocoding, can identify the address location at place near Yansha bridge.
Sub-step S44, gathers described azimuth information and described address location generates descriptive prompting positional information.
In the embodiment of the present invention, generate descriptive prompting positional information with azimuth information and address location, improve the capacity of suggestion content, determine the orientation of current present position with assisted user.
In an example of the embodiment of the present invention, for club shown in Fig. 2 A and these two navigation objects of dining room, if application azimuth information, descriptive prompting positional information can be generated for " left front be club, dining room " or " north-east is club, dining room "; If application address position, then can generate descriptive prompting positional information for " near Yansha bridge "; If apply azimuth information and address location simultaneously, then can generate descriptive prompting positional information for " near Yansha bridge, left front is club, dining room ", or, " near Yansha bridge, north-east is club, dining room ".
The descriptive prompting positional information generated for other navigation objects shown in Fig. 2 A is also similar, then for current location, the descriptive prompting " near Yansha bridge; left front is club, dining room; left back is restaurant; right back is apartment and commemorates statue, and right front is supermarket " that can generate.
This descriptive prompting positional information can show in region 305 as shown in Figure 6, to point out user.
Location point in the electronic chart at present terminal place, embodiment of the present invention location, and the first direction faced by present terminal, based on streetscape data to search the one or more interest point informations comprised in preset range, in conjunction with the first direction faced by described present terminal, and one or more interest point information, generate descriptive position indicating information, the descriptive information generated based on this provides simple to user, positioning describing intuitively, substantially increase the practicality of positioning service, know current residing position fast, avoid user constantly to position, reduce the consumption of system resource and Internet resources.
For embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the embodiment of the present invention is not by the restriction of described sequence of movement, because according to the embodiment of the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in instructions all belongs to preferred embodiment, and involved action might not be that the embodiment of the present invention is necessary.
With reference to Fig. 7, diagrammatically illustrate a kind of according to an embodiment of the invention structured flowchart of generating apparatus embodiment of descriptive position indicating information, specifically can comprise as lower module:
Locating module 701, is suitable for the location point of locating in the electronic chart at present terminal place;
Determination module 702, is suitable for the first direction determined faced by present terminal;
Search module 703, be suitable for based on streetscape data to search the one or more interest point informations comprised in preset range;
Generation module 704, is suitable in conjunction with the first direction faced by described present terminal, and described one or more interest point information, generates descriptive position indicating information.
In a kind of embodiment of the present invention, described locating module 701 can also be suitable for:
By the location point of mixed positioning mode determination present terminal in electronic chart;
Wherein, described mixed positioning mode can comprise following at least one:
Satnav mode, Wireless Fidelity locator meams, architecture mode, cell ID locator meams, advanced forward link triangle polyester fibre mode.
In a kind of embodiment of the present invention, described determination module 702 can also be suitable for:
First direction faced by current by the alignment sensor acquisition in present terminal;
Wherein, described alignment sensor can comprise following at least one:
Gyroscope, electronic compass, GPS.
In a kind of embodiment of the present invention, described preset range comprises the visual scope based on streetscape data.
In a kind of embodiment of the present invention, described in search module 703 and can also be suitable for:
In described electronic chart centered by described location point position, to determine with described center based on the visual scope of streetscape data for preset range;
One or more interest point information is searched in described preset range.
In a kind of embodiment of the present invention, described generation module 704 can also be suitable for:
Coordinate system is built based on described first direction;
Calculate described one or more interest point information in described coordinate system, relative to the azimuth information of described location point;
Identify the address location at described location point place;
Gather described azimuth information and described address location generates descriptive prompting positional information.
In a kind of alternate exemplary of the embodiment of the present invention, described generation module 704 can also be suitable for:
With described location point for initial point, build coordinate system along described first direction and second direction; Described second direction be the direction vertical with described first direction.
In a kind of alternate exemplary of the embodiment of the present invention, described generation module 704 can also be suitable for:
The angle that calculating Eigenvector and described coordinate system are formed; Described Eigenvector is the line segment that described location point and described one or more interest point information are formed;
The orientation belonging to described angle is searched in the azimuth information table preset.
For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Intrinsic not relevant to any certain computer, virtual system or miscellaneous equipment with display at this algorithm provided.Various general-purpose system also can with use based on together with this teaching.According to description above, the structure constructed required by this type systematic is apparent.In addition, the present invention is not also for any certain programmed language.It should be understood that and various programming language can be utilized to realize content of the present invention described here, and the description done language-specific is above to disclose preferred forms of the present invention.
In instructions provided herein, describe a large amount of detail.But can understand, embodiments of the invention can be put into practice when not having these details.In some instances, be not shown specifically known method, structure and technology, so that not fuzzy understanding of this description.
Similarly, be to be understood that, in order to simplify the disclosure and to help to understand in each inventive aspect one or more, in the description above to exemplary embodiment of the present invention, each feature of the present invention is grouped together in single embodiment, figure or the description to it sometimes.But, the method for the disclosure should be construed to the following intention of reflection: namely the present invention for required protection requires feature more more than the feature clearly recorded in each claim.Or rather, as claims below reflect, all features of disclosed single embodiment before inventive aspect is to be less than.Therefore, the claims following embodiment are incorporated to this embodiment thus clearly, and wherein each claim itself is as independent embodiment of the present invention.
Those skilled in the art are appreciated that and adaptively can change the module in the equipment in embodiment and they are arranged in one or more equipment different from this embodiment.Module in embodiment or unit or assembly can be combined into a module or unit or assembly, and multiple submodule or subelement or sub-component can be put them in addition.Except at least some in such feature and/or process or unit be mutually repel except, any combination can be adopted to combine all processes of all features disclosed in this instructions (comprising adjoint claim, summary and accompanying drawing) and so disclosed any method or equipment or unit.Unless expressly stated otherwise, each feature disclosed in this instructions (comprising adjoint claim, summary and accompanying drawing) can by providing identical, alternative features that is equivalent or similar object replaces.
In addition, those skilled in the art can understand, although embodiments more described herein to comprise in other embodiment some included feature instead of further feature, the combination of the feature of different embodiment means and to be within scope of the present invention and to form different embodiments.Such as, in the following claims, the one of any of embodiment required for protection can use with arbitrary array mode.
All parts embodiment of the present invention with hardware implementing, or can realize with the software module run on one or more processor, or realizes with their combination.It will be understood by those of skill in the art that the some or all functions that microprocessor or digital signal processor (DSP) can be used in practice to realize according to the some or all parts in the generation equipment of the descriptive position indicating information of the embodiment of the present invention.The present invention can also be embodied as part or all equipment for performing method as described herein or device program (such as, computer program and computer program).Realizing program of the present invention and can store on a computer-readable medium like this, or the form of one or more signal can be had.Such signal can be downloaded from internet website and obtain, or provides on carrier signal, or provides with any other form.
The present invention will be described instead of limit the invention to it should be noted above-described embodiment, and those skilled in the art can design alternative embodiment when not departing from the scope of claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and does not arrange element in the claims or step.Word "a" or "an" before being positioned at element is not got rid of and be there is multiple such element.The present invention can by means of including the hardware of some different elements and realizing by means of the computing machine of suitably programming.In the unit claim listing some devices, several in these devices can be carry out imbody by same hardware branch.Word first, second and third-class use do not represent any order.Can be title by these word explanations.
Claims (10)
1. a generation method for descriptive position indicating information, comprising:
Location point in the electronic chart at present terminal place, location;
Determine the first direction faced by present terminal;
Based on streetscape data to search the one or more interest point informations comprised in preset range;
In conjunction with the first direction faced by described present terminal, and described one or more interest point information, generate descriptive position indicating information.
2. the method for claim 1, is characterized in that, the step of the location point in the electronic chart at present terminal place, described location comprises:
By the location point of mixed positioning mode determination present terminal in electronic chart;
Wherein, described mixed positioning mode comprises following at least one:
Satnav mode, Wireless Fidelity locator meams, architecture mode, cell ID locator meams, advanced forward link triangle polyester fibre mode.
3. the method as described in any one of claim 1-2, is characterized in that, describedly determines that the step of the first direction faced by present terminal comprises:
First direction faced by current by the alignment sensor acquisition in present terminal;
Wherein, described alignment sensor comprises following at least one:
Gyroscope, electronic compass, GPS.
4. the method as described in any one of claim 1-3, is characterized in that, described preset range comprises the visual scope based on streetscape data.
5. the method as described in any one of claim 1-4, is characterized in that, describedly comprises with the step of searching the one or more interest point informations comprised in preset range based on streetscape data:
In described electronic chart centered by described location point position, to determine with described center based on the visual scope of streetscape data for preset range;
One or more interest point information is searched in described preset range.
6. the method as described in any one of claim 1-5, is characterized in that, the first direction described in described combination faced by present terminal, and described one or more interest point information, and the step generating descriptive position indicating information comprises:
Coordinate system is built based on described first direction;
Calculate described one or more interest point information in described coordinate system, relative to the azimuth information of described location point;
Identify the address location at described location point place;
Gather described azimuth information and described address location generates descriptive prompting positional information.
7. the method as described in any one of claim 1-6, is characterized in that, the described step based on described first direction structure coordinate system comprises:
With described location point for initial point, build coordinate system along described first direction and second direction; Described second direction be the direction vertical with described first direction.
8. the method as described in any one of claim 1-7, is characterized in that, the described one or more interest point information of described calculating, in described coordinate system, comprises relative to the step of the azimuth information of described location point:
The angle that calculating Eigenvector and described coordinate system are formed; Described Eigenvector is the line segment that described location point and described one or more interest point information are formed;
The orientation belonging to described angle is searched in the azimuth information table preset.
9. a generating apparatus for descriptive position indicating information, comprising:
Locating module, is suitable for the location point of locating in the electronic chart at present terminal place;
Determination module, is suitable for the first direction determined faced by present terminal;
Search module, be suitable for based on streetscape data to search the one or more interest point informations comprised in preset range;
Generation module, is suitable in conjunction with the first direction faced by described present terminal, and described one or more interest point information, generates descriptive position indicating information.
10. device as claimed in claim 9, it is characterized in that, described locating module is also suitable for:
By the location point of mixed positioning mode determination present terminal in electronic chart;
Wherein, described mixed positioning mode comprises following at least one:
Satnav mode, Wireless Fidelity locator meams, architecture mode, cell ID locator meams, advanced forward link triangle polyester fibre mode.
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| CN201410543063.1A CN104330081B (en) | 2014-10-14 | 2014-10-14 | A kind of generation method and device of descriptive position indicating information |
| PCT/CN2015/091935 WO2016058533A1 (en) | 2014-10-14 | 2015-10-14 | Method and apparatus for generating and positioning descriptive location prompt information |
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| CN201410543063.1A CN104330081B (en) | 2014-10-14 | 2014-10-14 | A kind of generation method and device of descriptive position indicating information |
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