CN101324437B - Method and device for displaying navigation circuit - Google Patents
Method and device for displaying navigation circuit Download PDFInfo
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- CN101324437B CN101324437B CN2007101103842A CN200710110384A CN101324437B CN 101324437 B CN101324437 B CN 101324437B CN 2007101103842 A CN2007101103842 A CN 2007101103842A CN 200710110384 A CN200710110384 A CN 200710110384A CN 101324437 B CN101324437 B CN 101324437B
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- 239000000284 extract Substances 0.000 claims description 34
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Abstract
The invention discloses a navigation route display method, which comprises the following steps: extracting crossings from acquired navigation routes; segmenting the navigation route according to the extracted crossings; calling a crossing symbol template base for anyone of the extracted crossings and extracting corresponding crossing symbol; linearizing each segment of the navigation route; and linearly connecting the linearized segments of the navigation route by the extracted crossing symbols, and displaying. The invention also discloses a navigation route display device. The method and the device disclosed by the invention can clearly, concisely and intuitively display the navigation route information and have good readability. Particularly, the device can completely and clearly display the navigation route on a smaller screen.
Description
Technical field
The present invention relates to the navigation circuit display technique, relate in particular to the navigation circuit display packing and the navigation circuit display device of a kind of linearize, symbolism show navigator circuit.
Background technology
Navigation circuit figure is used for the planning circuit is presented to the user with graphic form, thereby realizes the navigation feature to vehicle and pedestrian.
At present, navigation circuit figure generally adopts the display mode that highlights the circuit actual path on background map.This navigation circuit figure is following outside the navigation circuit information needed (for example the situation at turning, sail into/go and roll away from/go road name etc.), there is more redundant information, disturbed following the clear expression of navigation circuit information needed, therefore influenced the readability of navigation circuit figure, directly perceived inadequately; Particularly, when need be when going up the show navigator circuit in the small screen (for example mobile phone, palm PC, size-constrained vehicle-mounted computer display screen etc.), be subject to the resolution needs of background map, be difficult to clearly the complete navigation circuit be presented, often need to thumb the different piece of background map.
Summary of the invention
The object of the present invention is to provide a kind of navigation circuit display packing and a kind of navigation circuit display device, readable poor to overcome in the prior art navigation circuit figure, and defective that can't clear, complete show navigator circuit under the limited situation of screen size.
The invention provides a kind of navigation circuit display packing, may further comprise the steps:
From the navigation circuit that has obtained, extract the crossing;
Carry out the segmentation of navigation circuit according to the crossing of being extracted;
To arbitrary crossing of extracting, call symbol guide storehouse, crossing and extract corresponding crossing symbol;
Linearize is handled each leading line highway section;
Connect leading line highway section after described linearize is handled with the crossing symbol linear of being extracted, and shown.
The present invention also provides a kind of navigation circuit display device, comprise transportation network Database Unit, navigation circuit acquiring unit and display unit, also comprise crossing extraction unit, symbol extraction unit, crossing, crossing symbol guide library unit and navigation circuit assembled unit; Described crossing extraction unit is connected with navigation circuit acquiring unit and transportation network Database Unit, is used for extracting intersection information and carrying out the segmentation of navigation circuit at the navigation circuit of output; Symbol extraction unit, described crossing is connected with transportation network Database Unit and crossing extraction unit, be used to receive the intersection information of described crossing extraction unit output, extract corresponding crossing symbol according to transportation network data call crossing symbol guide library unit, and symbol is strengthened in the crossing carry out the operation that highlights the selected branch of navigation circuit; Described navigation circuit assembled unit is used for the leading line highway section that linearize is handled the output of described crossing extraction unit, and the crossing symbol that itself and symbol extraction unit, described crossing are exported carries out linear combination, and exports to described display unit and shown.
Navigation circuit display packing provided by the present invention and navigation circuit display device, adopt the mode of linearize, symbolism show navigator circuit, and need not background map is shown to have following beneficial effect:
1, can be clear, concisely, show navigator line information intuitively, have preferable readability;
2, especially be convenient on less screen, realize complete, the clear demonstration of navigation circuit.
Description of drawings
Fig. 1 is the process flow diagram of navigation circuit display packing embodiment 1 provided by the present invention;
Fig. 2 is the process flow diagram of navigation circuit display packing embodiment 2 provided by the present invention;
Fig. 3 is the process flow diagram of navigation circuit display packing embodiment 3 provided by the present invention;
Fig. 4 is the synoptic diagram that illustrates navigation circuit+background map embodiment;
Fig. 5 is the synoptic diagram that illustrates crossing symbol embodiment;
Fig. 6 is the synoptic diagram of navigation circuit embodiment behind the extraction crossing;
Fig. 7 is the synoptic diagram that carries out the navigation circuit embodiment after the segmentation;
Fig. 8 is that a mark does not have the synoptic diagram that the navigation circuit embodiment of crossing selects in branch;
Fig. 9 is that a mark does not have branch and selects crossing and nothing to turn to the synoptic diagram of the navigation circuit embodiment of crossing;
Figure 10 is the synoptic diagram that a linearize is handled back navigation circuit embodiment;
Figure 11 is for showing a navigation circuit figure embodiment of a static whole circuit;
Figure 12 is for showing another navigation circuit figure embodiment of a static whole circuit;
Figure 13 is for showing the another navigation circuit figure embodiment of a static whole circuit;
Figure 14 is for showing a navigation circuit figure embodiment again of a static whole circuit;
Figure 15 is for showing the navigation circuit figure embodiment of a dynamic whole circuit;
Figure 16 is the navigation circuit figure embodiment of the local navigation indication of a demonstration;
Figure 17 is the navigation circuit figure embodiment of mileage indication;
Figure 18 is the structural representation of navigation circuit display device embodiment 1 provided by the present invention;
Figure 19 is the structural representation of navigation circuit display device embodiment 2 provided by the present invention;
Figure 20 is the structural representation of navigation circuit display device embodiment 3 provided by the present invention.
Embodiment
For solve be difficult in the prior art clear, intuitively express the defective of navigation circuit information, the invention provides a kind of navigation circuit display packing and a kind of navigation circuit display device, be elaborated below in conjunction with accompanying drawing.
For the purpose of at first it may be noted that for convenience of description, the present invention is that example is illustrated with navigation circuit+background map that Fig. 4 was provided; But those skilled in the art can understand, and navigation circuit shown in Figure 4+background map situation only is for example and not limitation, and navigation circuit display packing provided by the present invention and navigation circuit display device are applicable to and show any navigation circuit.
Navigation circuit display packing embodiment 1:
Referring to Fig. 1, the process flow diagram for navigation circuit display packing embodiment 1 provided by the present invention may further comprise the steps:
101, from the navigation circuit that has obtained, extract the crossing;
Because the present invention is the improvement that acquired navigation circuit is shown the aspect, and the actual process of obtaining of navigation circuit can be carried out according to arbitrary navigation circuit acquisition methods in the prior art, such as manual starting point and the terminal point title keyed in, perhaps select starting point and terminal point etc. by touch-sensitive display, obtaining navigation circuit and select an output by inquiry transportation network database then, therefore to how obtaining navigation circuit repeating no more here.But those skilled in the art as can be seen, also should comprise before this step 101 and obtain the step of following required navigation circuit.Usually, navigation circuit is presented on the background map, as shown in Figure 4, has shown a navigation circuit and the background context map of from people road No. 111 (starting point) to Wang Jia lane No. 16 (terminal points).
Referring to Fig. 6, based on the transportation network database, 5 crossings have appearred altogether in background map further, the present invention will extract be navigation circuit 4 crossings of process, be numbered A, B, C and D respectively.
102, carry out the segmentation of navigation circuit according to the crossing of being extracted, as shown in Figure 7;
103, the arbitrary crossing to extracting is called symbol guide storehouse, crossing and is extracted corresponding crossing symbol.According to the expression requirement of this crossing, be divided into three kinds of situations:
First kind, extract crossing reduction symbol.In general, crossing reduction symbol does not show that the actual sets of crossing becomes branch, but represent the crossing with the crossing symbol (as symbols such as point symbol, empty circles or solid circles) of reduction branch, it mainly is applicable to the crossing that need not to emphasize according to hoist pennants;
Such as, the user is only required to show that the situation of mileage and advanced positions, the branch of all circuits all need not to show, then all crossings can adopt crossing reduction symbol to express.
Second kind, extract the crossing null symbol.So-called crossing null symbol is the crossing symbol that only keeps linkage function, promptly in the final navigation circuit that forms shows, any expression to this crossing can not occur.
The third extracts the crossing and strengthens symbol and highlight the selected branch of navigation circuit, specifically comprises:
To arbitrary crossing of extracting, call the crossing typelib and discern its affiliated type; For instance, each crossing type is as follows among Fig. 6: crossing A is not for there being the cross crossing that turns to, crossing B has right turn crossings left and right and three branches that keep straight on, crossing C is the right turn crossing that need not to select branch, and exit point and always crossing to branch, crossing D are to have to keep straight on and the " T "-intersection of two branches that turn right.
According to the crossing type of being discerned, to call symbol guide storehouse, crossing, and extract the crossing and strengthen symbol, this crossing is strengthened symbol and is shown each branch of current crossing, and highlights the selected branch of navigation circuit; In this step, the branch that can highlight as needs by the selected branch of mark navigation circuit realizes the actual effect that highlights by final display unit.
Referring to Fig. 5 first row, correspondingly provided the related crossing that shows each branch of crossing and highlight the selected branch of navigation circuit and strengthened symbol.
104, linearize is handled each leading line highway section;
So-called linearize is promptly represented the highway section of arbitrary shape, as shown in figure 10 with straight-line segment.
Linearize can be not be consistent with the engineer's scale in former highway section, be that shown length of straigh line needn't be proportional with former road section length, but the magnitude relationship that can keep each navigation circuit segment length, promptly the pairing straight-line segment in highway section that length is long originally represents not to be shorter than the short pairing straight-line segment in highway section of length originally.Certainly, also can keep strict proportionate relationship.
In actual use, whether keep magnitude relationship, and whether adopt strict engineer's scale, by the user according to hobby or needs are set separately.
Linearize is handled the leading line highway section and is extracted between the symbol of crossing and do not have sequential relationship, can take place before it or afterwards, and the sequence of steps of present embodiment only is for example and not limitation.
105, the linear operation that connects is carried out in the leading line highway section after with the crossing symbol that extracted described linearize being handled, and is shown, present embodiment is the navigation circuit of starting point between to terminal;
Specifically, exactly with symbolism crossing and linearize highway section according to travelling/walk sequential combination, the symbolism that can add Origin And Destination is expressed, simultaneously can add other elements such as annotation, direction as required, can also use drawing elements such as different colors and line style to be distinguished as required.
As shown in figure 11, for showing the navigation circuit figure embodiment of a static whole circuit.In the figure, not only shown the crossing of symbolism, also shown road name, also shown the length information in highway section as annotation; Wherein, the crossing symbol is that symbol is strengthened in the crossing, show each branch of crossing, and the selected branch of navigation circuit is highlighted.It will be understood by those skilled in the art that the crossing symbol among the navigation circuit figure also can adopt crossing reduction symbol or crossing null symbol.
As can be seen, present embodiment 1 provides a kind of new navigation circuit display packing, be expressed as the straight line circuit to what the circuit with arbitrary curve track was simplified, and be the crossing that the situation of crossing presents with the symbolism form, thereby both clear expression navigation circuit is followed information, be convenient to again on the small screen, show that resulting navigation circuit figure is simple and clear, directly perceived, readability.
Navigation circuit display packing embodiment 2:
Based on embodiment 1 described content, can be further in crossing symbolism process according to the mark of crossing whether, dissimilar crossings is distinguished, select different crossing symbols to show, such as to the crossing (as crossing C among Fig. 6) that need not to select branch, do not have the crossing (as crossing A among Fig. 6) that turns to and/or other and need the crossing of weakening/ignoring, adopt crossing reduction symbol or crossing null symbol to show, and turn to, need to select the crossing of branch to having, then adopt the crossing to strengthen symbol and show.
For convenience of description, introduced the demonstration rank here, such as:
When current demonstration rank is first rank, will select the crossing of branch to adopt crossing reduction symbol or crossing null symbol to show to need not;
When current demonstration rank is second level, will adopt crossing reduction symbol or crossing null symbol to show to the crossing that nothing turns to;
Current demonstration rank is third level when other, will be to need not to select the crossing of branch and not having the crossing that turns to and adopt crossing reduction symbol or crossing null symbol to show;
Other is set to example with above-mentioned display level in the explanation of related embodiment of the present invention, but it will be appreciated by those skilled in the art that, it is above-mentioned that other setting only is for example and not limitation to display level, the user can be provided with flexibly according to the needs of oneself fully, such as first rank is set be: select the crossing of branch to adopt crossing reduction symbol to show to need not, second level is set is: select the crossing of branch to adopt the crossing null symbol to show or the like to need not, repeat no more.
Below the technical scheme of carrying out the crossing mark is specifically described.
Referring to Fig. 2, the process flow diagram for the embodiment 2 of navigation circuit display packing provided by the present invention has comprised the step of the crossing being discerned judgement.Present embodiment 2 is an example with navigation circuit shown in Figure 4 still, and step is as follows:
201, from the navigation circuit that has obtained, extract the crossing, see Fig. 6;
202, carry out the segmentation of navigation circuit according to the crossing of being extracted, see Fig. 7;
203, the arbitrary crossing to extracting is called the crossing typelib and is discerned its affiliated type;
204, current demonstration rank be the first order other the time, whether need select branch, be execution in step 206 then if discerning this crossing, otherwise execution in step 205;
205, this crossing of mark;
As can be seen, present embodiment is that to need not to select the crossing (as crossing C among Fig. 6) of branch with identification be that example describes.To need not to select the crossing of branch, even each branch of crossing is not shown, can not cause to turn to mistake yet, so this crossing of mark, as shown in Figure 8; Can use crossing reduction symbol or crossing null symbol to it, realize the simplification of navigation circuit figure.
Those skilled in the art can understand, in this step, and when showing that rank is second level, also can be according to the continuity of highway section shape, identification does not have the crossing that the turns to row labels of going forward side by side.
Perhaps, when showing that rank is third level when other, identification and mark need not to select the crossing of branch and the crossing that nothing turns to, as shown in Figure 9.
Above-mentioned several possibility situations of for example understanding the mark crossing it is pointed out that in the present embodiment and the possible mode of all abbreviations are not enumerated that concrete mark mode can be according to application need, the crossing that flexible mark need not to represent.
Simultaneously, show that rank selected to determine by the user no matter select which rank according to actual needs, what changed only is the content of mark, and technical scheme of the present invention is not made a difference.And the user can obtain the information of different the level of details in the small screen in the switching of different stage.
206, judging whether whole crossings finish type identification, is execution in step 207 then, otherwise execution in step 203;
207, judging that whether the crossing discerned is the crossing of mark, is execution in step 208 then, otherwise execution in step 209;
208, extract the crossing null symbol, execution in step 211 then;
209, extract the crossing and strengthen symbol, this symbol has shown each branch of crossing
210, on this crossing reinforcement symbol, highlight the selected branch of navigation circuit;
211, linearize is handled each leading line highway section;
212, the linear operation that connects is carried out in the leading line highway section after with the crossing symbol that extracted described linearize being handled, and is shown, present embodiment is the navigation circuit of starting point between to terminal;
Referring to Figure 12, be to carry out the navigation circuit figure that obtains after the above-mentioned steps of present embodiment 2, wherein the crossing C in the displayed map 6 not.
Understand easily, when identification and mark simultaneously need not to select the crossing of branch and crossing that nothing turns to, can further realize the simplification of navigation circuit figure.
In this course, can further carry out the differentiation of mark, select the crossing of branch to use different marks such as the crossing that nothing is turned to need not, thereby distinguish employing crossing reduction symbol or crossing null symbol according to different marks.As shown in figure 13, when need not to select the crossing of branch and crossing that nothing turns to for identification and mark simultaneously, the embodiment of a navigation circuit figure; Wherein, select the crossing of branch to adopt the crossing null symbol to show to need not, and adopted crossing reduction symbol to show the crossing that need not to turn to.
Accordingly, in this course, if, will adopt same crossing symbols to these two kinds of crossings so to nothing crossing that turns to and the identical mark of crossing use that need not to select branch.Shown in Fig. 5 secondary series, crossing A and C adopt crossing reduction symbol simultaneously, are specially the open circles symbol; Shown in Fig. 5 the 3rd row, crossing A and C adopt the crossing null symbol simultaneously.Please further referring to Figure 14, when need not to select the crossing of branch and crossing that nothing turns to for identification and mark simultaneously, the embodiment of a navigation circuit figure again; Wherein, select the crossing of branch and do not have the crossing that turns to and all adopted the crossing null symbol to show need not.
Generally speaking, embodiments of the invention 2 are a preferred embodiment of the present invention, provide by mark and have distinguished different crossings, the method that the different crossing symbol of corresponding employing comes linearize show navigator circuit, on the basis of embodiment 1, further simplified content displayed.
In actual applications, can give tacit consent to the operation of taking mark to need not to select the crossing of branch, with avoid shown in Figure 11 two or more the unhelpful of multi-intersection pile up.And nothing is turned to the mark of crossing and to the mark of whole crossings, can select to realize according to the demonstration rank of reality.
The embodiment 1 of above-mentioned navigation circuit display packing and embodiment 2, given all is the static state expression of navigation circuit; Those skilled in the art can understand, and the real time position that can add vehicle or pedestrian in the navigation circuit display packing provided by the present invention forms the dynamic navigation conspectus.Specific implementation is that the dynamic body position of advancing that adds is indicated on the basis of static synoptic diagram, just can form dynamic schematic diagram, as shown in figure 15; At this moment, the main body (people or vehicle) in advancing is shown as dynamic point-like or rectangle or linear symbol etc. on navigation circuit figure.
Simultaneously, given among the embodiment 1 and 2 all is overall index map, and method provided by the present invention is equally applicable to the expression of local line, promptly local navigation index map.So-called local navigation index map, be only to show the wiring diagram of current driving highway section to crossing, the place ahead or highway section according to advanced positions, it makes by dwindling indication range that figure was both clear easily to be distinguished, be not subjected to the influence of the temporary transient information that has nothing to do again, be used for providing schematically that circuit is followed and reminding turning advancing, make interpreting blueprints person obtain information by pan promptly, as shown in figure 16, it has shown the reminding turning of ensuing 2 crossings.
Concrete, local navigation index map scheme can for: extract current advanced positions; The part navigation circuit of demonstration from current advanced positions toward the terminal point direction.
But in general, local navigation index map should provide reminding turning in advance, and guarantees that interpreting blueprints person has the time enough reaction, therefore local navigation index map scheme can also for: extract current advanced positions; Extract the present speed parameter, calculate and show length, as to be processed turning in 2 minutes the range of driving next; Demonstration is from the navigation circuit of current advanced positions to the described demonstration length of terminal point direction.In this process, can be aided with voice suggestion.
The embodiment 1 and the 2 given many circuits with horizontal expansion of navigation circuit figure that it may be noted that the navigation circuit display packing are shown that this is only for giving an example.In actual use, circuit also can be longitudinal extension, is beneficial to contrast in advancing, as part navigation indication Figure 16.No matter take which bearing of trend to be shown, owing to no longer there is curve and curving,, also can operates and show full figure by simple unidirectional roll screen even under the limited situation that can't all show of small screen size.
Navigation circuit display packing embodiment 3:
Under situation about simplifying most, can carry out the mark of whole crossings, crossing reduction symbol or crossing null symbol are used in the crossing behind the mark, reach the effect that the whole piece circuit is simplified, this is particularly useful for dynamically showing the situation of mileage.Main body often wants to understand the mileage situation often advancing owing to advance, and how far has promptly walked, how far has waited with ining addition, and the mileage index map is used for open-and-shut understanding mileage situation, and the line segment and the current location that comprise starting point, terminal point, whole circuit are indicated.Navigation circuit display packing embodiment 3 provided by the present invention just provides a kind of like this technical scheme, as shown in Figure 3, may further comprise the steps:
301, from the navigation circuit that has obtained, extract the crossing;
302, carry out the segmentation of navigation circuit according to the crossing of being extracted;
303, carry out the mark of whole crossings;
304, the arbitrary crossing to extracting is called symbol guide storehouse, crossing and is extracted corresponding crossing symbol, in the present embodiment, is the crossing null symbol;
Wherein, step 304 can realize by following steps: judge that the crossing discerned is the crossing of mark; Extract the crossing null symbol.
305, linearize is handled each leading line highway section;
306, the linear operation that connects is carried out in the leading line highway section after with the crossing symbol that extracted described linearize being handled, and is shown;
307, on the navigation circuit figure that shows, add current advanced positions indication and mileage indication, as shown in figure 17.Wherein, gone mileage and treat that the ratio between the row mileage can be kept.
The present invention also provides the navigation circuit display device that realizes said method, and this device is realized by software module, with other software module collaborative works of navigation application system.This navigation circuit display device can be arranged on the navigator, perhaps on the server of Distributed Calculation.
Navigation circuit display device embodiment 1:
Referring to Figure 18, the structural representation for navigation circuit display device embodiment 1 provided by the invention comprises:
Transportation network Database Unit 1 is used for recording traffic network data information;
Navigation circuit acquiring unit 2 is used to call described transportation network Database Unit 1, obtains and follows required navigation circuit;
Crossing extraction unit 4 is connected with navigation circuit acquiring unit 2 and transportation network database 1, is used for according to the transportation network data, extracts intersection information and carry out the segmentation of navigation circuit in the navigation circuit of output;
Symbol extraction unit, crossing 5 receives the intersection information of crossing extraction unit 4 outputs, and is connected with transportation network Database Unit 1, is used for according to transportation network data call crossing symbol guide library unit 6 and extracts corresponding crossing symbol; Such as, to the situation of mileage indication, can extract crossing reduction symbol or crossing null symbol;
Navigation circuit assembled unit 7 is used for the leading line highway section that linearize is handled 4 outputs of described crossing extraction unit, the crossing symbol of itself and symbol extraction unit, described crossing 5 outputs is carried out linear combination, and the navigation circuit after will making up is exported to described display unit 3 and is shown.
As can be seen, present embodiment 1 provides a kind of new navigation circuit display device, by obtaining navigation circuit and handling by the cooperation of above-mentioned module 4-7, finally be expressed as the straight line circuit to what the circuit with arbitrary curve track was simplified, and be the crossing that the situation of crossing presents with the symbolism form, thereby both clear expression navigation circuit is followed information, is convenient to again show on the small screen, and resulting navigation circuit figure is simple and clear, directly perceived, readability.
Wherein, transportation network Database Unit 1, navigation circuit acquiring unit 2 and display unit 3 have been widely used in present Navigation Display system, and its implementation and function are those skilled in the art's known technology, do not repeat them here.
Simultaneously, optionally, also comprise advanced positions detecting unit 10, be connected, be used to detect current advanced positions with described navigation circuit assembled unit 7; Then described navigation circuit assembled unit 7 also is used for showing current advanced positions on the navigation circuit of linear combination, thereby realizes the demonstration of dynamic navigation wiring diagram; Perhaps show from current advanced positions, to the local navigation circuit figure of terminal point direction.
Optionally, also comprise gait of march detecting unit 11, be used to detect current gait of march; Then described navigation circuit assembled unit 7 is connected with described gait of march detecting unit 11, is used for according to current gait of march, calculates the demonstration length of navigation circuit and exports dynamic, the local navigation circuit of described length.
Navigation circuit display device embodiment 2:
Further, under the collaborative work of typelib unit, crossing, the extraction of symbol can also be realized the crossing is strengthened in the symbol extraction unit, crossing 5 among the embodiment 1.As shown in figure 19, structural representation for navigation circuit display device embodiment 2 provided by the invention, on the basis of the foregoing description 1, further comprise the typelib unit, crossing 8 that is connected with symbol extraction unit, described crossing 5, be used to enumerate and preserve all or typical intersection type; Accordingly, correspondence is preserved corresponding symbol guide in the symbol guide library unit 6 of crossing, and arbitrary symbol guide has shown each branch of a kind of crossing type, and allows its certain branch to be highlighted.
Symbol extraction unit, then described crossing 5 is used to extract the intersection information of crossing extraction unit 4 outputs, calls typelib unit, described crossing 8, in conjunction with type under the transportation network data identification crossing; And, call crossing symbol guide library unit 6 and extract corresponding crossing reinforcement symbol, and highlight the selected branch of navigation circuit according to the crossing type.
Navigation circuit display device embodiment 3:
Further, in crossing symbolism process, also can be whether according to the mark of crossing, different crossing symbols is selected in difference, thus the variation that realizes crossing symbol in the navigation circuit is expressed.Referring to Figure 20, the structural representation for the embodiment 3 of navigation circuit display device provided by the present invention has comprised the function of the crossing being discerned judgement.Concrete, this embodiment 3 comprises further showing rank input block 9 that then crossing extraction unit 4 is used for the demonstration rank according to input, and mark is carried out in the crossing on the basis of embodiment 2.Whether the mark of crossing will exert an influence to the mode of operation of symbol extraction unit, crossing 5, judges that such as, symbol extraction unit, crossing 5 whether the crossing discerned is the crossing of mark; To unlabelled crossing, extract corresponding crossing and strengthen symbol, and highlight the selected branch of navigation circuit; To the crossing of mark, extract crossing reduction symbol or crossing null symbol.
In this course, the situation of selected marker crossing can be provided with according to the actual needs, for instance, can comprise:
To first rank, identification need not to select the crossing of branch, the row labels of going forward side by side; Perhaps
To second level, identification does not have the crossing that turns to, the row labels of going forward side by side; Perhaps
Other to the third level, identification need not to select the crossing of branch and does not have the crossing that turns to, the row labels of going forward side by side.
Perhaps, the whole crossings of mark.
Generally speaking, the embodiment 3 of navigation circuit display device of the present invention provides by mark and has distinguished different crossings, and adopt different crossing symbols to come the device of linearize show navigator circuit respectively, not only can linearize, symbolism show navigator circuit, and can carry out Signed Domination according to the actual needs, when satisfying the navigation demand, reduce the demonstration complexity.
Should be noted that, in navigation circuit display device embodiment provided by the present invention, the unit that is occurred is all described with the form of functional block, but in actual use, but each unit arbitrary combination and do not influence technical scheme of the present invention realizes the function of crossing extraction unit 4 and navigation circuit assembled unit 7 such as realizing in a module.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (15)
1. navigation circuit display packing is characterized in that may further comprise the steps:
From the navigation circuit that has obtained, extract the crossing;
Carry out the segmentation of navigation circuit according to the crossing of being extracted;
To arbitrary crossing of extracting, call symbol guide storehouse, crossing and extract corresponding crossing symbol;
Linearize is handled each leading line highway section;
Connect leading line highway section after described linearize is handled with the crossing symbol linear of being extracted, and shown.
2. navigation circuit display packing according to claim 1 is characterized in that extracting corresponding crossing symbol and comprises:
To arbitrary crossing of extracting, call the crossing typelib and discern its affiliated type, and according to the crossing type of being discerned,
Extract the crossing and strengthen symbol, and highlight the selected branch of described navigation circuit; Described crossing is strengthened symbol and is shown each branch of crossing;
Perhaps extract crossing reduction symbol or crossing null symbol;
Described crossing reduction symbol does not show the branch of crossing, and described crossing null symbol only keeps the linkage function of crossing symbol to part of path.
3. navigation circuit display packing according to claim 1 is characterized in that extracting after the crossing from described navigation circuit, also comprises the arbitrary crossing to extracting, and calls the crossing typelib and discerns its affiliated type; And according to the crossing type of being discerned, the step of selected marker crossing; Wherein, the step of selected marker crossing includes but not limited to:
To first rank, identification need not to select the crossing of branch, the row labels of going forward side by side; Perhaps
To second level, identification does not have the crossing that turns to, the row labels of going forward side by side; Perhaps
Other to the third level, identification need not to select the crossing of branch and does not have the crossing that turns to, the row labels of going forward side by side.
4. navigation circuit display packing according to claim 1 is characterized in that extracting after the crossing from described navigation circuit, also comprises the mark that carries out whole crossings.
5. according to claim 3 or 4 described navigation circuit display packings, it is characterized in that extracting corresponding crossing symbol and comprise:
Judge that whether the crossing discerned is the crossing of mark;
To unlabelled crossing, extract the crossing and strengthen symbol, and highlight the selected branch of described navigation circuit;
To the crossing of mark, extract crossing reduction symbol or crossing null symbol.
6. navigation circuit display packing according to claim 1 is characterized in that linearize handles each leading line highway section and also comprise the magnitude relationship that keeps each leading line highway section.
7. navigation circuit display packing according to claim 1 is characterized in that showing that the leading line highway section after linear the connection comprises: show the navigation circuit between starting point to terminal.
8. navigation circuit display packing according to claim 1 is characterized in that showing that the leading line highway section after linear the connection comprises: extract current advanced positions; Demonstration is from current advanced positions, to the part navigation circuit of terminal point direction.
9. navigation circuit display packing according to claim 1 is characterized in that showing that the leading line highway section after linear the connection comprises: extract current advanced positions; Extract the present speed parameter, calculate demonstration length; Demonstration is from the navigation circuit of current advanced positions to the described demonstration length of terminal point direction.
10. according to claim 1 or 7 or 8 or 9 described navigation circuit display packings, it is characterized in that also comprising: on described navigation circuit, show reference information, include but not limited to current advanced positions indication, dynamic/static mileage indication.
11. navigation circuit display device, comprise transportation network Database Unit, navigation circuit acquiring unit and display unit, it is characterized in that also comprising crossing extraction unit, symbol extraction unit, crossing, crossing symbol guide library unit and navigation circuit assembled unit;
Described crossing extraction unit is connected with navigation circuit acquiring unit and transportation network Database Unit, is used for extracting intersection information and carrying out the segmentation of navigation circuit at the navigation circuit of output;
Symbol extraction unit, described crossing is connected with transportation network Database Unit and crossing extraction unit, be used to receive the intersection information of described crossing extraction unit output, extract corresponding crossing symbol according to transportation network data call crossing symbol guide library unit, and symbol is strengthened in the crossing carry out the operation that highlights the selected branch of described navigation circuit;
Described navigation circuit assembled unit is used for the leading line highway section that linearize is handled the output of described crossing extraction unit, and the crossing symbol that itself and symbol extraction unit, described crossing are exported carries out linear combination, and exports to described display unit and shown.
12. navigation circuit display device according to claim 11 is characterized in that also comprising the advanced positions detecting unit, is connected with described navigation circuit assembled unit, is used to detect current advanced positions;
Described navigation circuit assembled unit is used for showing current advanced positions on the navigation circuit of linear combination, perhaps shows from current advanced positions, to the navigation circuit of terminal point direction.
13. navigation circuit display device according to claim 12 is characterized in that also comprising the gait of march detecting unit, is used to detect current gait of march;
Described navigation circuit assembled unit is connected with described gait of march detecting unit, is used for according to current gait of march, calculates the demonstration length of navigation circuit and exports the navigation circuit of described length.
14. according to the arbitrary described navigation circuit display device of claim 11-13, it is characterized in that also comprising the typelib unit, crossing that is connected with symbol extraction unit, described crossing, be used to preserve the crossing type; Symbol extraction unit, described crossing is used to extract the intersection information of crossing extraction unit output, calls typelib unit, described crossing, type under the navigation identification of lines crossing; And, call crossing symbol guide library unit and extract corresponding crossing reinforcement symbol, and highlight the selected branch of navigation circuit according to the crossing type.
15. navigation circuit display device according to claim 14 is characterized in that also comprising the demonstration rank input block that is connected with described crossing extraction unit, described crossing extraction unit is used for the demonstration rank according to input, and mark is carried out in the crossing; Whether corresponding symbol extraction unit, then described crossing be used for according to the mark of crossing selection crossing symbol.
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| CN2007101103842A CN101324437B (en) | 2007-06-13 | 2007-06-13 | Method and device for displaying navigation circuit |
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| CN102620743A (en) * | 2011-12-31 | 2012-08-01 | 深圳市凯立德科技股份有限公司 | Display method and display device for planned roads |
| CN103413437B (en) * | 2013-07-31 | 2015-04-29 | 福建工程学院 | Method and system for identifying road intersection steering based on vehicle data collection |
| JP2017026568A (en) * | 2015-07-28 | 2017-02-02 | ソニー株式会社 | Information processor, information processing method and program |
| CN117268427A (en) * | 2023-09-27 | 2023-12-22 | 江苏泽景汽车电子股份有限公司 | Navigation information display method and device, storage medium and electronic equipment |
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