Background technology
Along with popularizing of guider with popular, there has been increasing people to begin to carry so-called portable navigation device, these guiders see through satellite navigation system, and (Global Positioning System is to call the running of GPS in the following text, can calculate the current location at guider (to call navigation spots in the following text) place itself in real time, navigation map arround the show navigator point in the particular range, the destination (course line between the Waypoint (foundation of Route and the navigation that provide navigation spots and user to set, and provide and comprise the food clothing and live the setpoint information that row is educated happy each side, add short and small frivolous Portable design, bring many facilities in life for the user really.
Path navigation function with vehicle navigation device is an example, if the user wants from first ground when second ground does not know but how this plans best travel path (being the course line), the user only need import the destination (being destination) that will arrive in guider, the flight course planning function that then can see through GPS can determine best course line and be presented in the navigation screen of guider for the user with reference to going to, and allows solve many lost puzzlements the user that some are unfamiliar with for road conditions or sense of direction is not good.
At present known technology the navigation screen that can provide as shown in " Fig. 3 A " to " Fig. 3 C ", anticipate.As previously mentioned, after the user finishes destination 32 settings, guider just can be according to known navigation display technique, set up earlier the course line 34 between the destination 32 of the navigation spots 30 of represent guider or user position and user's setting, the navigation map is with (this is the initialization procedure of finishing after 34 planning of course line) in the navigation screen that course line as " Fig. 3 A " is provided is illustrated in guider then, this moment, the user at first can see whole course lines 34 overviews of being planned by the flight course planning function of GPS, then just can enter actual navigation procedure, general navigation screen can be the center and show current navigation spots 30 in the mode of displaying ratio greatly with navigation spots 30 this moment, course line 34 and corresponding navigation map, shown in " Fig. 3 B ", the user just can grasp the counterparty in current navigation spots 30 and course line 34 and to the pass was this moment, and in navigation map other setpoint information of navigation spots 30 peripheries, and then the navigation of guider in navigation screen advanced towards destination 30, in the actual process of carrying out course line 34 navigation of guider, can be that the direct of travel that produces the reference that is available for users to advance in real time illustrates 36 to the pass according to the counterparty between navigation spots 30 positions at present and the course line 34, the direction place that can allow the user know should to advance at present.
But the navigation screen shown in " Fig. 3 B " is understood some disappearance, please refer to " Fig. 3 C ", we illustrate to the ratio that shows to reaching vertically with navigation spots 30 level in navigation screen in the drawings, can find that navigation screen that known technology is realized all is is that navigation spots 30 is carried out at the center with navigation spots 30, the demonstration of course line 34 and navigation map, that is to say that navigation spots 30 can be shown in the centre of whole navigation screen and to be the center with navigation spots 30 show that with level and vertical all symmetrical manner corresponding navigation map is in navigation screen, that is respectively show 50% navigation map at navigation spots about 30, and navigation spots 30 respectively shows 50% navigation map up and down.This kind display mode will cause course line 34 displayable parts quite limited, with " Fig. 3 B " is example, when direct of travel icon 36 is that straight line is forward when (towards navigation screen top), this moment the user course line 34 scopes that can see then only have navigation spots 30 tops 50% navigation screen (such as " Fig. 3 C " signal), navigation screen as for navigation spots 30 belows 50% then is subject to known technology and can't provides more course line 34 scopes, in the comparatively complicated navigation procedure of some course line 34 direct of travels, particularly in the application of vehicle navigation device, the user may cause the problem of taking a wrong way even influencing traffic safety because can't predict under the situation of multiple course 34 more.
Summary of the invention
In view of above problem, it is the guider and the method thereof of display base with the direct of travel that fundamental purpose of the present invention is to provide a kind of, can in navigation screen, provide the user more route information and other setpoint information on direct of travel, to allow the user can in traveling process, carry out every preparation early.
The present invention is disclosed to be the guider of display base with the direct of travel, includes: in order to store the internal memory of navigation map; Be used for receiving the gps antenna and the GPS receiving element of above satellite signals; Be electrically connected to the CPU (central processing unit) of GPS receiving element and internal memory, carry out the navigation spots location according to received satellite signals, when confirming the direct of travel parameter change of navigation spots, dynamically adjust first display parameter of navigation spots and second display parameter of navigation map, and according to the corresponding navigation map of second display parameter acquisition; And display unit, can be in navigation screen according to first display parameter and the second display parameter show navigator point and navigation map.
The present invention is disclosed to be the air navigation aid of display base with the direct of travel, includes the following step:
Destination according to the user is set the course line that generates between destination and navigation spots.
According to the second display parameter show navigator point of first display parameter of initialized navigation spots and navigation map and navigation map in navigation screen.
Receive above satellite signals and carry out the navigation spots location, to confirm the direct of travel parameter change of navigation spots.
Dynamically adjust first display parameter of navigation spots according to the direct of travel parameter.
Dynamically adjust second display parameter of navigation map according to first display parameter.
According to the first display parameter show navigator point, and capture corresponding navigation map according to second display parameter and be shown in the navigation screen.
Relevant characteristics and implementation of the present invention cooperate diagram to be described in detail as follows as most preferred embodiment now.
Embodiment
It is the guider and the method thereof of display base with the direct of travel that the present invention proposes a kind of, basic composition is as shown in " Figure 1A ", include input block 10, CPU (central processing unit) 12, gps receiver 14, gps antenna 16, display unit 18 and internal memory 20, this is the first embodiment aspect of guider 5.
Input block 10, be electrically connected at CPU (central processing unit) 12, mainly be to be used to provide the user that guider 5 is imported and control operation, common input block 10 can be meant also that for keyboard or Touch Screen are used for importing the control knob on the guider 5 is used for carrying out the control of menu and option; CPU (central processing unit) 12 electrically connects with gps receiver 14, can handle a plurality of satellite signals of being passed back by gps receiver 14 and calculate the current location at guider 5 (navigation spots) place; 16 of gps antennas and gps receiver 14 electrically connect to provide gps receiver 14 described a plurality of satellite signals; Display unit 18, be electrically connected at CPU (central processing unit) 12, can be used to the show navigator picture, wherein comprise guider 5 (navigation spots) current position information and related navigational information (containing navigation map and setpoint information), in guider 5 many with LCD screen as display unit 18; Internal memory 20 then is electrically connected at CPU (central processing unit) 12 equally, is used for storing navigation information (containing navigation map and setpoint information).
Guider 5 is mentioned actual when carrying out path navigation in the front, CPU (central processing unit) 12 can carry out the calculating of navigation spots current location according to received a plurality of satellite signals and the counterparty between the course line is that the direct of travel diagram is provided in navigation screen to the pass according to current location and planning, and 5 navigation screen that can provide of guider of the present invention are characterised in that the going direction changing of the navigation spots that its display mode can be judged according to guider 5 and dynamically adjust, particularly at the part of navigation spots display position and navigation map indication range, allow the user can in navigation screen, obtain more route information and other setpoint information, air navigation aid is described as follows shown in " Fig. 2 A " in detail:
At first, CPU (central processing unit) 12 can be set the course line (step 100) that generates between the destination navigation spots with representing guider 5 own according to the destination of user in guider 5; Then after finishing flight course planning, carry out initialization procedure so that the user to be provided result that can the whole flight course planning of overview, and according to the second display parameter show navigator point and the corresponding navigation map (step 110) in navigation screen of first display parameter of predetermined navigation spots and predetermined navigation map; Along with moving of navigation spots, CPU (central processing unit) 12 can continue to carry out path navigation according to satellite signals, and the direct of travel parameter that is produced during according to path navigation to produce corresponding direct of travel in navigation screen graphic, does and the direct of travel of judging navigation spots simultaneously change? (step 120) just dynamically adjusts first display parameter (step 130) of navigation spots according to the direct of travel parameter when the direct of travel parameter change of navigation spots; Dynamically adjust second display parameter (step 140) of navigation map then according to first display parameter; At last according to first display parameter and the second display parameter show navigator point and navigation map (step 150) in navigation screen.
First display parameter are the demonstration positional parameters that are used for being set in relevant navigation spots in the navigation screen, generally all are to represent with pixel coordinate position; Second display parameter then are the indication range parameters that is used for being set in relevant navigation map in the navigation screen, generally are to generate corresponding to the navigation map indication range size around the navigation spots with reference to first display parameter.As previously mentioned, all navigation screen all are that navigation spots is positioned over the central authorities of navigation screen and decides the navigation map scope that institute should show around the navigation spots with level and the equal symmetrical manner of vertical direction in known technology, and therefore first display parameter and second display parameter are fixed in the process of entire path navigation and can not changed.But in the present invention, the initialization of being carried out when finishing flight course planning shows that the stage can carry out the demonstration of correlation navigation picture with predetermined first display parameter and second display parameter, go forward side by side in the process that walking along the street directly navigates when navigation spots begins to move, first display parameter and second display parameter then at any time can the changes to some extent because of the going direction changing of navigation spots.
The change of first display parameter and second display parameter, must meet basically " direct of travel parameter and this first display parameter are to present reverse pass to be, this direct of travel parameter and this second display parameter be present forward close be " principle.So-called reverse pass is, expression when the direct of travel parameter be during towards north-westward (promptly towards the navigation screen upper left side), first display parameter must make the demonstration of navigation spots be partial to the southeast in the navigation screen to (promptly towards the navigation screen lower right); And for example when the direct of travel parameter be during towards North-East Bound (promptly towards the navigation screen upper right side), first display parameter then must make the north-westward (promptly towards the navigation screen lower left) in the demonstration deflection navigation screen of navigation spots.This reverse closing is presenting when showing can also convert the actual pixels coordinate position that reverse pass is middle navigation spots according to the longitude and latitude angle of direct of travel parameter representative to.So-called forward closes, then expression when the direct of travel parameter be during towards north-westward (promptly towards the navigation screen upper left side), second display parameter must strengthen the indication range ratio (promptly towards navigation screen upper left side) of navigation map in the navigation spots north-westward; And for example when the direct of travel parameter be during towards North-East Bound (promptly towards the navigation screen upper right side), second display parameter then must strengthen navigation map in the indication range ratio in navigation spots North-East Bound (promptly towards the navigation screen upper right side).This forward close be can also be converted to presenting when showing around the navigation spots according to the actual displayed position of navigation spots the actual ratio size of all directions navigation map that should show.
Can under the big principle of the technology of the present invention principle, freely set by those who are familiar with this art as for the rule of the conversion correspondence between direct of travel parameter, first display parameter and second display parameter and there is no particular limitations.
About judging the part of direct of travel parameter change, be to close to calculate from the relative direction between the course line that the location and the desire navigation of present navigation spots position are advanced through CPU (central processing unit) 12 to learn basically.In addition, the part of direct of travel parameter change can also directly offer CPU (central processing unit) 12 through the signal of external unit and make judgment processing, please refer to the part of " Figure 1B ", the second embodiment aspect for guider 5 of the present invention, wherein how be that with " Figure 1A " difference a sensing unit 22 is electrically connected at CPU (central processing unit) 12, direct of travel parameter this sensing unit 22 can directly directly provide change when navigation spots generation going direction changing after is to CPU (central processing unit) 12, when CPU (central processing unit) 12 is pointed to the signal of unit 22 once receiving from the outside, can start and carry out the program of dynamically adjusting first display parameter and second display parameter, finish in the navigation screen demonstration of navigation spots and navigation map equally and dynamically adjust.
Corresponding air navigation aid is as shown in " Fig. 2 B ", and the difference between " Fig. 2 A " only is after the demonstration of completing steps 110 initialization navigation screen, the sensing unit 22 that start along with guider 5 this moment begins to calculate the direct of travel of navigation spots, when the front and back direct of travel of a discovery navigation spots changes, just can directly send corresponding direct of travel parameter directly carries out first display parameter and the dynamic program of adjusting (step 160) of second display parameter for CPU (central processing unit) 12, omitted the step 120 of judging going direction changing in original " Fig. 2 A " by CPU (central processing unit) 12, reduce the processing burden of CPU (central processing unit) 12, and the flow process of follow-up processing is all identical with " Fig. 2 A ".
" Fig. 4 A " reaches " Fig. 4 B " for implementing the synoptic diagram of navigation screen of the present invention, can fully show the effect that this case technology contents is produced, and is described as follows:
By the direct of travel in " Fig. 4 A " diagram 36 as can be known at that time the direct of travel that given of 5 pairs of navigation spots 30 of guider be positive north orientation advance (towards the navigation screen top), the definition navigation spots 30 that expression according to reverse pass is must be presented in the square on the lower side picture of navigation screen, so that can allow the user grasp more course line 34 information and other setpoint information when straight ahead.As shown in the figure, through after the adjustment to first display parameter, can find that navigation spots 30 is presented at the square on the lower side position, middle of whole navigation screen, because direct of travel parameter at that time is the deflection about straight ahead there is no, therefore in the adjustment of first display parameter, only need to adjust navigation spots 30 in navigation screen vertically to display position can the adjustment level to display position, relative in the adjustment of second display parameter then must and the direct of travel parameter present forward and close and be, with reference to the result of first display parameter can learn navigation map must strengthen vertical to displaying ratio.At last as shown in FIG., navigation spots 30 be displayed in the navigation screen level to the left and right ratio each 50%, descend vertically upward ratio to be respectively 65% and 35% position, and navigation map level displaying ratio to the left and right each 50%, descend vertically upward displaying ratio to be respectively 65% and 35%, therefore the user can obtain more information and other setpoint information of multiple course 34 when straightaway, before can in navigation screen, being found to the pointed course line 34 of A among the figure early as the user the curved information in a left side is arranged, and the preparation and the reaction of prior abundance can be arranged.
Similarly, when the indicated direct of travel of guider changes to some extent, when changing into the north-westward as shown in " Fig. 4 B " as advancing and advancing (advancing) towards the navigation screen upper left side by the positive north orientation in " Fig. 4 A ", direct of travel diagram 36 also will be changed into the points west north orientation, carry out the dynamic adjustment that navigation screen shows simultaneously, must be displayed on the lower right of navigation screen according to same adjustment principle navigation spots 30, so that can allow the user can acquire information and other setpoint information in relevant course line on the how present direct of travel.As shown in FIG., navigation spots 30 be displayed in the navigation screen level to the left and right ratio be respectively 70% and 30%, descend vertically upward ratio to be respectively 80% and 20% position, and navigation map in navigation screen level to the left and right displaying ratio be respectively 70% and 30%, descend displaying ratio to be respectively 80% and 20% vertically upward.So, just the user can when north-westward is advanced, know early course line 34 will occur as figure in the pointed course line 34 consecutive curve information of B, can carry out the preparation of turning.
More than disclose the technology contents of guider of the present invention and air navigation aid, the path navigation effect that it produced mainly is to provide multirow more to advance course line 34 information on the direction and other setpoint information to the user.Particularly in the application process of some vehicle navigation devices, the user who drives can be known information and other setpoint information in more relevant planning course line 34 in advance, avoids causing mistake and dangerous generation the in the driving.