Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
Be illustrated in figure 1 as the structural representation of the navigator of the embodiment of the invention, described navigator comprises:
Route acquiring module 101 is used for according to electronic map information, obtains navigation way from origin to destination;
Determination module 102 is used for determining the current geographic location of navigation object;
Processing module 103 is used for the current geographic location according to described navigation object, obtains described navigation object arrives the preset location on the electronic chart from described current geographic location the parameter of advancing, and described preset location is positioned on the described navigation way; The described parameter of advancing is distance or estimated time of arrival (ETA);
First judge module 104 is used to judge whether the described parameter of advancing is less than or equal to first predetermined threshold value, when the described parameter of advancing is less than or equal to described first predetermined threshold value, generates and calls indication;
Calling module 105 is used for calling indication according to described, calls the navigation picture of described preset location, and described navigation picture acceptance of the bid is marked with the navigation information that is complementary with described navigation way;
Display module 106;
First control module 107 is used to control described display module 106 and shows described navigation picture.
For example above-mentioned navigator is elaborated below.
Suppose that above-mentioned navigator is an in-vehicle navigation apparatus, the user need be under the navigation directions of described navigator, and driving a car arrives B ground from A ground, and wherein A ground is the departure place, and B ground is the destination, and above-mentioned navigation object is the automobile that the user drives;
Route acquiring module 101 calculates a navigation way from A ground to B ground according to the electronic map information of user's input and storage; User's input comprises: the destination (B ground) that current departure place (A ground) and needs arrive, in addition, and can also be as required, input is calculated principle (for example minimal path principle, shortest time principle) etc. via ground, avoidance ground and navigation way; After calculating described navigation way, generally described navigation way can be presented on the electronic chart by display module 106, travel with the guiding user;
Determination module 102 is determined the current geographic location E of automobile, the current geographic location E of described automobile promptly is the place that the automobile current driving is arrived, can measure in real time, described current geographic position can adopt earth latitude and longitude coordinates to represent, for example the E geographic position of ordering be (east longitude: 116 ° 23 ' 17 ", north latitude: 39 ° 54 ' 27 "); Described navigator can be real-time the current geographic location E with automobile be presented on the electronic chart because described automobile is to travel according to the navigation way that navigator is calculated, therefore, the current position E of described automobile is positioned on the described navigation way;
Suppose the navigation way from A ground to B ground that aforementioned calculation draws, need the preset location C ground that marks on the approach electronic chart, described C ground generally is the place of traffic route more complicated, and C ground is positioned on the described navigation way;
Suppose that the above-mentioned parameter of advancing is: described navigation object arrives the distance of preset location from current geographic location, above-mentioned processing module 103 is according to the current geographic location E of described automobile and the geographic position on preset location C ground, obtain described automobile from described current geographic location E to preset location C ground apart from s, supposing to calculate described is 500 meters apart from s;
Above-mentioned first predetermined threshold value can be set to rational distance threshold, for example 50 meters, promptly first judge module 104 is when judging automobile and also have 50 meters to be about to arrive C ground, then indicate calling module 105 to call the navigation picture on C ground, and pass through navigation picture shown in described display module 106 demonstrations of control module 107 controls;
Certainly, also described navigation object can be arrived the estimated time of arrival (ETA) of preset location as the described parameter of advancing from current geographic location.At this moment, also need to obtain the movement speed v of described automobile, described processing module 103 is obtained described automobile arrives the preset location C ground on the electronic chart from described current geographic location E estimated time of arrival (ETA) t according to the current geographic location E and the movement speed v of described automobile; At this moment, suppose to measure above-mentioned automobile with the speed of 10 meter per seconds to C advance, according to the current geographic location E of described automobile and the geographic position on preset location C ground, calculate the current geographic location E of automobile 500 meters with being positioned at distance C, at this moment, described automobile from the estimated time of arrival (ETA) t that described current geographic location E arrives C ground is:
(distance between E ground and the C ground)/(speed of automobile)=500/10=50 second;
At this moment, above-mentioned first predetermined threshold value can be set to rational time threshold, for example 10 seconds, promptly first judge module 104 is when judging automobile and also have 10 seconds and be about to arrive C ground, then indicate calling module 105 to call the navigation picture on C ground, and pass through navigation picture shown in described display module 106 demonstrations of control module 107 controls;
Certainly, because described estimated time of arrival (ETA) is being advanced during parameter as above-mentioned, also need to obtain the translational speed of automobile, and calculate described estimated time of arrival (ETA) according to described translational speed, if the translational speed of automobile is measured inaccurate words, above-mentioned estimated time of arrival (ETA) also error must occur, therefore, more accurate for what calculate, generally be that described navigation object is arrived the distance of preset location as the described parameter of advancing from current geographic location.
The navigation picture on the C ground that above-mentioned display module 106 shows is got the bid and is marked with the navigation information that is complementary to the navigation way on B ground with described A ground, described navigation information can comprise: turning information, direction information and/or information of place names etc., for example need the turning information of turning eastwards, the place name on the directional information on C ground, C ground etc. on C ground.
The navigator that provides by the foregoing description can at navigation object during near a preset location, show the navigation picture of described preset location, provides more intuitive and accurate navigation information to the user.
Be illustrated in figure 2 as another structural representation of the navigator of the embodiment of the invention, on the basis of the foregoing description, described navigator also comprises: gps signal receiver module 108 is used to receive gps signal; Described determination module 102 is determined the current geographic location of navigation object according to described gps signal.
Navigator in the foregoing description is a GPS navigation equipment, when described GPS navigation opening of device, promptly can receive gps signal in real time, and determines the current geographic location of navigation object according to described gps signal, and its accuracy and real-time are very high.
Above-mentioned navigation picture can be the image of anticipating, and is stored in the image data base of described navigator, perhaps is stored in other external image databases, when described navigator needs, downloads from described external image database.
Be illustrated in figure 3 as the another structural representation of the navigator of the embodiment of the invention, on the basis of embodiment shown in Figure 1, described navigator also comprises:
Image memory module 109 is used to store navigation image database, comprises in the described navigation image database: the directional information of the navigation way that marks in the navigation picture of described preset location, the geographic position of described preset location and the described navigation picture;
Described calling module 105 is inquired about described navigation image database according to the described geographic position of the described preset location that comprises in the indication and the directional information of described navigation way called, and calls the navigation picture with described navigation way coupling.
Following table is the specific embodiment of relevant information of the navigation picture of the preset location of storing in the navigation image database:
Preset location |
Navigation picture |
The preset location geographic position |
The directional information of predetermined paths |
A certain crossing, the Tian'anmen Square, Beijing |
Image information |
East longitude: 116 ° 23 ' 17 ", north latitude: 39 ° 54 ' 27 " |
Turn from north east |
Because the data volume of above-mentioned navigation picture may be very big, the storage space of navigator possibly can't satisfy the demands, and therefore, also navigation picture can be stored in the gps satellite database, just downloads on the navigator when needed and uses.
Navigation information in the above-mentioned navigation picture can be that manual type marks on corresponding real scene image, perhaps utilizes image analysis technology, adopts computing machine to mark automatically, will mark good navigation picture then and be stored in the corresponding navigation image data base.
In addition, described navigation picture also can and be handled for real time shooting and obtain, and promptly described navigation object is in the process of carrying out, take the real scene image of preset location in real time, and on described real scene image, mark the navigation information that mates with current navigation way, generate navigation picture, and show.
Be illustrated in figure 4 as the another structural representation of the navigator of the embodiment of the invention, on the basis of embodiment shown in Figure 1, described navigator also comprises:
Real scene image acquisition module 110 is used for obtaining in real time the real scene image of described preset location;
Labeling module 111 is used for the real scene image in described preset location, marks the navigation information that mates with described navigation way, generates the navigation picture of described preset location;
Above-mentioned calling module 105 calls the navigation picture of the described preset location of described labeling module 111 generations according to calling indication.
Above-mentioned real scene image acquisition module 110 can be a camera head, obtains the real scene image of described preset location;
Above-mentioned labeling module 111 is utilized image analysis technology, marks the navigation information with current navigation way coupling on described real scene image automatically.
The navigator that provides by the foregoing description, can in traveling process, take the real scene image of preset location in real time, and on described real scene image, mark the navigation information that mates with navigation way, needn't store navigation picture in advance, reduce the storage space of navigator.
In addition, in the above-described embodiments, at navigation object when the preset location, the navigation picture that shows preset location, provide more directly perceived to the user, navigation information accurately, yet, above-mentioned navigator also can not show the navigation picture of described preset location for a long time, for example, arrived or during by described preset location, then do not continued to show necessity of described navigation picture again at navigation object, therefore, be illustrated in figure 5 as the another structural representation of the navigator of the embodiment of the invention, on the basis of embodiment shown in Figure 1, above-mentioned navigator also comprises:
Second judge module 112 is used to judge whether the described parameter of advancing is less than or equal to second predetermined threshold value;
Second control module 113 is used for controlling described display module and cancelling described navigation picture when the described parameter of advancing is less than or equal to described second predetermined threshold value.
As mentioned above, the described parameter of advancing can arrive the distance or the estimated time of arrival (ETA) of preset location for described navigation object from current geographic location.
Suppose that the described parameter of advancing is described distance, at this moment, can described second predetermined threshold value be set to a less distance, for example, second predetermined threshold value can be set to zero, and promptly navigation object has arrived described preset location, at this moment, then can cancel the described navigation picture of demonstration,, or show the navigation picture of next preset location so that described display module 106 can show electronic chart.
Navigator in the foregoing description can be personal digital assistant, portable terminal, MP3, MP4, electronics wrist formula equipment and other miniature electronic instrument.
By the navigator that the foregoing description provides, the user can obtain the navigation information that needs more intuitively, exactly from described navigation picture, has improved the accuracy and the ease for use of navigation; Owing to the real scene image of navigation picture by preset location comes, therefore, can also increase user's use enjoyment, reduction brain burden greatly, improved user experience.
Be illustrated in figure 6 as the schematic flow sheet of the air navigation aid of the embodiment of the invention, said method comprising the steps of:
Step 601 according to electronic map information, is obtained navigation way from origin to destination;
Step 602 is determined the current geographic location of navigation object;
Step 603 according to the current geographic location of described navigation object, is obtained described navigation object arrives preset location from described current geographic location the parameter of advancing, and described preset location is positioned on the described navigation way;
Step 604 judges whether the described parameter of advancing is less than or equal to first predetermined threshold value, when the described parameter of advancing is less than or equal to described first predetermined threshold value, generates and calls indication, enters step 605, otherwise returns step 603;
Step 605 is called indication according to described, calls the navigation picture of described preset location, and described navigation picture acceptance of the bid is marked with the navigation information that is complementary with described navigation way;
Step 606 shows described navigation picture.
The current geographic location of above-mentioned navigation object can adopt earth latitude and longitude coordinates to represent;
The described parameter of advancing can arrive the distance or the estimated time of arrival (ETA) of preset location for described navigation object from current geographic location.
Suppose that the described parameter of advancing is described distance, at this moment, above-mentioned first predetermined threshold value can be set to rational distance threshold, and for example 50 meters, making to provide the navigation picture of preset location for the user before navigation object arrives preset location.
The navigation information that is complementary with described navigation way that marks in the above-mentioned navigation picture can comprise: turning information, direction information and/or information of place names etc.
Air navigation aid by the foregoing description provides can by showing the navigation picture of described preset location, provide intuitive and accurate navigation information to the user when navigation object is about to arrive a preset location.
Be illustrated in figure 7 as another schematic flow sheet of the air navigation aid of the embodiment of the invention, said method comprising the steps of:
Step 701 according to electronic map information, is obtained navigation way from origin to destination;
Step 702 according to the gps signal that receives, is determined the current geographic location of navigation object;
Step 703 according to the current geographic location of described navigation object, is obtained described navigation object arrives preset location from described current geographic location distance;
Step 704 judges whether described distance is less than or equal to first predetermined threshold value, when described distance is less than or equal to described first predetermined threshold value, generates and calls indication, enters step 705, otherwise returns step 703;
Step 705 is called indication according to described, and the enquiry navigation image data base is obtained the navigation picture with the described preset location of described navigation way coupling;
Step 706 shows described navigation picture.
In the above-described embodiments, at navigation object when the preset location, the navigation picture that shows preset location, provide intuitive and accurate navigation information to the user, yet, above-mentioned navigator also can not show the navigation picture of described preset location for a long time, for example, arrived or during at navigation object by described preset location, then do not continue to show necessity of described navigation picture again, therefore, above-mentioned air navigation aid also comprises: judge whether described distance is less than or equal to the step of second predetermined threshold value; When described distance was less than or equal to described second predetermined threshold value, cancellation showed the step of described navigation picture.
Just described navigation object arrives the distance of preset location as the described parameter of advancing from current geographic location in the foregoing description, certainly, also described navigation object can be arrived the estimated time of arrival (ETA) of preset location as the described parameter of advancing from current geographic location, its principle is identical, is not described in detail.
The air navigation aid that provides by the foregoing description, can be from the navigation image database that is stored in navigator in advance, call the navigation picture of preset location, the user can obtain the navigation information that needs intuitively, exactly from described navigation picture, has improved the accuracy and the ease for use of navigation; Owing to the real scene image of navigation picture by preset location comes, therefore, can also increase user's use enjoyment, reduction brain burden greatly, improved user experience.
Be illustrated in figure 8 as the another schematic flow sheet of the air navigation aid of the embodiment of the invention, said method comprising the steps of:
Step 801 according to electronic map information, is obtained navigation way from origin to destination;
Step 802 is obtained the real scene image of preset location in real time;
Step 803 on the real scene image of described preset location, marks the navigation information that mates with described navigation way, generates the navigation picture of described preset location;
Step 804 is determined the current geographic location of navigation object;
Step 805 according to the current geographic location of described navigation object, is obtained described navigation object arrives described preset location from described current geographic location distance;
Step 806 judges whether described distance is less than or equal to first predetermined threshold value, when described distance is less than or equal to described first predetermined threshold value, enters step 807, otherwise returns step 805;
Step 807 is obtained the navigation picture of described preset location;
Step 808 shows described navigation picture.
The method that provides by the foregoing description, can in traveling process, take the real scene image of preset location in real time, and on described real scene image, mark the navigation information that mates with navigation way, needn't store navigation picture in advance, reduce the storage space of navigator.
Generally, under the fairly simple situation of craspedodrome route or traffic, the user is difficult for false judgment, therefore, generally, above-mentioned preset location is the place of traffic more complicated, and the fork in the road with the traffic more complicated is that example is elaborated to the air navigation aid in the foregoing description below.
(1) departure place of setting according to the user, destination, navigation way calculate principle and electronic map information etc., calculate a navigation way;
(2) in traveling process, take the real scene image of default fork in the road in real time;
(3) on the real scene image of described fork in the road, mark the navigation information that is complementary with described navigation way, generate the navigation picture of described fork in the road;
Suppose that current fork in the road comprises three crossings: first crossing, second crossing and Third Road mouth, navigation object from the south orientation north to travelling, need turn eastwards at the place, second crossing of fork in the road, at this moment, then on the real scene image of described fork in the road, be labeled in the navigation information that place, described second crossing turns from south east, obtain described navigation picture;
(4), obtain current geographic position according to the gps signal that receives;
(5) near described fork in the road the time, obtain the navigation picture of the described fork in the road that is complementary with described navigation way;
(6) show described navigation picture.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better embodiment under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this obtains the machine software product and is stored in the storage medium, comprises that some instructions are used so that a station terminal equipment is carried out the described method of each embodiment of the present invention.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.