The content of the invention
Guider and navigation system are drawn it is an object of the invention to provide one kind navigation drawing drawing method, navigation pictureSystem, to solve not navigating in current GPS blind areas and the problem of no return is navigated.
In order to achieve the above object, the invention provides one kind navigate drawing drawing method, for draw from a departure place toThe navigation picture of one destination, M punctuate position is had from the departure place to destination, and the departure place is the 1st punctuation bitPut, the destination is m-th punctuate position, is comprised the following steps：
The information of i-th of punctuate position is obtained and stored, and is identified with an identifier being adapted with its category attributeI-th of punctuate position；
Obtain and store the operation information since i-th of punctuate position, until reaching (i+1) individual punctuation bitPut；
Obtain and store the information of (i+1) individual punctuate position；
Repeat the above steps, until the m-th punctuation bit is set to the destination so that formed from the departure place toNavigation picture between destination, wherein, M is natural number more than or equal to 2, and i is natural number, and i=1 ..., M.
It is preferred that, in above-mentioned navigation drawing drawing method, the letter of the information of the departure place and i-th of punctuate positionBreath includes：Image information, voice description information and one kind in character description information or any a variety of combination.
The character description information is the specific descriptions to the punctuate position, for example, when a punctuation bit is set to a parking stallWhen, the character description information can include the environment description around the number on the parking stall, and the parking stall, for example, shouldThere is a The Wash on the left side on parking stall, the entrance for having a market along the parking stall and the straight trip of the direction of the The Wash lineDeng.When a punctuation bit is set to a stair or elevator, the character description information can describe the specific of the stair or elevatorPosition and several buildings etc. will be reached by the stair or elevator.When a punctuation bit is set to a bridge, the character description informationThe feature of this bridge can be described, such as this bridge is the title of arch bridge and this bridge.
The voice description information is also the additional notes of the punctuate position, and its content can believe the word descriptionBreath is played back in the form of speech, that is to say, that the information content and the word included in the voice description informationThe information content that description information is included is consistent, simply shows that the form of the information content is different.Certainly, the voiceContent included in description information can also be from the information included in the character description information it is different, can part notIt is same or entirely different, it is also the further description to the punctuate position so that in the mistake using the navigation pictureIt is more quick and easily find the punctuate position in journey.
It is preferred that, in above-mentioned navigation drawing drawing method, the operation information includes：Mileage information or/and motion sideTo and angle information.
A kind of display methods of navigation picture is additionally provided in the present invention, for showing that what method as described above drawn leadsChart.
It is preferred that, in the display methods of above-mentioned navigation picture, methods described includes：Show that each in the navigation picture is markedPoint position identifier, the identifier for its punctuate position identified category attribute.
It is preferred that, in the display methods of above-mentioned navigation picture, methods described also includes：Show each in the navigation pictureThe character description information and/or voice description information of individual punctuate position.
Present invention also offers a kind of return air navigation aid, leading that navigation drawing drawing method as described above is drawn is utilizedChart realizes the navigation from the destination to departure place.
It is preferred that, in above-mentioned return air navigation aid, including：
Found on navigation picture and choose the punctuate position closest with return departure place, first navigated as returnIndividual punctuate position；
Found on the navigation picture and choose the punctuate position closest with return destination, be used as purpose landmark pointPosition；
One is chosen on the navigation picture to tie to the destination punctuate position since first punctuate positionThe return navigation way of beam；And
The destination punctuate position is back to along the return navigation way of selection, then in the destination punctuate positionSurrounding finds the return destination.
The present invention more provides a kind of navigation picture and drawn and guider, including：
Data acquisition device, for obtain departure place in navigation picture, destination and from the departure place to destination itBetween each punctuate position information, and with the category attribute of each punctuate position be adapted identifier be identified；
Operation information harvester, for obtaining the operation information brought into operation from departure place；
Storage device, for store the information of each punctuate position in the navigation picture acquired in the data acquisition device,Operation information that follow acquired in the operation information harvester brings into operation and from the departure place to destinationBetween navigation picture；And
Control process device, for controlling the data acquisition device, operation information harvester and storage device.
It is preferred that, in above-mentioned navigation picture drafting and guider, also include：Display device, for showing the numberThe information that is obtained according to harvester and from the departure place to the navigation picture of destination.
It is preferred that, in above-mentioned navigation picture drafting and guider, also include：Also include：Loudspeaker arrangement, for playingThe information that the data acquisition device is obtained.
Present invention also offers a kind of navigation system, including：
Navigation picture as described above is drawn and guider；And
With the server of navigation picture drafting and guider communication connection.
The present invention more provides a kind of computer program product, the computer program product includes executable with executionThe calculating that any one or more in above-mentioned navigation drawing drawing method, the display methods of navigation picture and return air navigation aid is combinedMachine readable instruction.
In the navigation drawing drawing method, navigation picture that the present invention is provided draw guider and navigation system, do not havingIn the case that GPS is covered or can not be accurately positioned by GPS, during from origin to destination, acquisition departure place,Destination and from origin to destination between each punctuate position information, draw out from the departure place to destinationBetween navigation way and navigation picture.When being back to the departure place from the destination, it is possible to use above-mentioned followGround to destination navigation way and navigation picture, from the destination navigation to the departure place.So as to solve current GPSIt can not be navigated in blind area and the problem of no return is navigated.
Embodiment
The embodiment of the present invention is described in more detail below in conjunction with schematic diagram.According to description below andClaims, advantages and features of the invention will become apparent from.It should be noted that, accompanying drawing uses very simplified form and equalUsing non-accurately ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
One embodiment of the invention provides a kind of navigation drawing drawing method, for drawing from a departure place a to destinationNavigation picture, M punctuate position is had from the departure place to destination, and the departure place is the 1st punctuate position, the purposeGround is m-th punctuate position, wherein, M is natural number more than or equal to 3, and i is natural number, and i=1 ..., M.As shown in figure 1,Fig. 1 is the flow chart of navigation drawing drawing method in one embodiment of the invention.Specifically, the described method comprises the following steps：First,Obtain and store the step S11 in the information of departure place, such as Fig. 1.
In step s 11, can be by least one mode to obtain using the departure place as first punctuate positionThe information of departure place (first punctuate position) is stated, now i value is 1.For example, going out using described in image collecting device acquisitionThe image information on ground is sent out, the voice description information to the departure place is obtained by voice acquisition device, obtained by input unitTake the character description information to the departure place.In step s 11, the information of the acquired departure place includes but is not limited toA kind of information or much information in image information, voice description information and the character description information of the departure place it is anyCombination.
Specifically, the character description information is the specific descriptions to the punctuate position, for example, when a punctuation bit is set to oneDuring parking stall, the character description information can include the environment description around the number on the parking stall, and the parking stall, exampleSuch as, there is a The Wash on the left side on the parking stall, has a market along the parking stall and the straight trip of the direction of the The Wash lineEntrance etc..When a punctuation bit is set to a stair or elevator, the character description information can describe the stair or elevatorParticular location and several buildings etc. will be reached by the stair or elevator.When a punctuation bit is set to a bridge, the word is retouchedThe feature of this bridge can be described by stating information, such as this bridge is the title of arch bridge and this bridge.The embodiment of the present invention is simultaneouslyThe above-described description to punctuate position is not limited only to, any other content that can recognize that the punctuate position is can also beDescription, the present invention is not limited thereto.
The voice description information is also the additional notes of the punctuate position, and its content can believe the word descriptionBreath is played back in the form of speech, that is to say, that the information content and the word included in the voice description informationThe information content that description information is included is consistent, simply shows that the form of the information content is different.Certainly, the voiceContent included in description information can also be from the information included in the character description information it is different, can part notIt is same or entirely different, it is also the further description to the punctuate position so that in the mistake using the navigation pictureIt is more quick and easily find the punctuate position in journey.
Then, obtain and store the operation information since the departure place, until in next punctuate position, such as Fig. 1Step S12.
In step s 12, the operation information since the departure place includes but is not limited to mileage information and the direction of motionAnd angle information.During obtaining and storing the operation information, it is first to obtain the mileage information first, is then obtainingTake after a mileage information, calculated current kinetic direction and angle information and stored the current kinetic side obtained after calculatingTo and angle-data.
Specifically, in an embodiment of the present invention, mileage record function being realized by an acceleration transducer, is enteredOne step, when drawing walking navigation figure, the mileage information is meter step information.Obtain vertical by the acceleration transducerIn the information of the Z axis on ground, then the Z axis information is handled, it is hereby achieved that the gait waveform figure of people, then to instituteState gait waveform figure and carry out Fourier transformation, you can obtain the meter step information.Certainly, in an embodiment of the present invention, notIt is only limitted to obtain the meter step information by acceleration transducer, in other embodiments of the invention, can also be by itHe walks information at methods to obtain the meter, and the present invention is not limited thereto.
In another embodiment of the present invention, the direction of motion and angle can be obtained by electronic compass sensorInformation.The electronic compass sensor can obtain accurate relative at any position (including indoor and underground parking garage)Angle in magnetic field of the earth, according to the accurate angle information supplementary inertial sensor relative to magnetic field of the earth of acquisition and then canTo obtain the accurate direction of motion and angle information.
At the individual punctuate position of arrival (i+1), then the information of (i+1) individual punctuate position is obtained and stores, itsMiddle i is the step S13 in the natural number more than or equal to 1 and less than or equal to M, such as Fig. 1.
In step s 13, in embodiments of the present invention, i value is the natural number more than or equal to 1, next, with i etc.Exemplified by 1, i.e., with since the starting point up to reach second punctuation bit be set to example.
Specifically, (i+1) individual punctuate position can be gone from the departure place (the 1st punctuate position) to describedThe optional position run into during destination (m-th punctuate position), certainly, preferably, each punctuation bit be set to thanThe index point of obvious personal characteristics.For example, can be the building with distinguishing mark, elevator, lavatory, paving, parkAnd have distinctive scenery etc. in park.The information of acquired (i+1) individual punctuate position includes but is not limited to instituteState a kind of information or a variety of in the image information, voice description information and character description information of (i+1) individual punctuate positionAny combination of information.
Finally, S11 is repeated the above steps to step S13, until (m-th punctuate position) is arrived at, so as to be formedFrom the departure place to the bar navigation route destination.And from the departure place to can form a plurality of destinationNavigation way, a plurality of navigation way are so as to form the navigation picture from the departure place to destination.
It should be noted that in embodiment involved in the present invention, from the departure place (the 1st punctuate position) to instituteStating the species of the information of all M punctuate positions between destination (m-th punctuate position) be able to can also be differed with identical.Specifically, the species of the information of all M punctuate positions is identical, that is to say, that the information of all M punctuate positions is wrappedImage information, voice description information and one kind in character description information or any a variety of combination are included, for example, all MThe information of punctuate position includes image information, or the information of all M punctuate positions is retouched including image information and voiceState information.
Certainly, the species of the information of all M punctuate positions can also be different.For example, the N1 in M punctuate positionIndividual information only includes image information, and the information of N2 punctuate position includes image information and voice description information, N3 markThe information of point position includes image information, voice description information and character description information, wherein, (N1+N2+N3)≤M, andN1, N2 and N3 are the natural number more than or equal to 1.
One embodiment of the invention additionally provides a kind of navigation picture for showing and being drawn according to above-mentioned navigation drawing drawing methodMethod, as shown in Fig. 2 Fig. 2 is by showing what the navigation drawing drawing method according to Fig. 1 was drawn in one embodiment of the inventionThe flow chart of the method for navigation picture.The display methods of the navigation picture includes：Will be identified each in upper navigation drawing drawing methodIndividual punctuate position is shown with corresponding identifier respectively.Such as the step S21 in Fig. 2.Specifically, the identifier isThe picture of the category attribute of punctuate position can be clearly picked out, for example, when a punctuation bit is set to an automobile, it is possible to use a vapourThe picture of car is used as the identifier of the punctuate position, as soon as when punctuation bit is set to an elevator, this is used as using the picture of elevatorThe identifier of punctuate position, as soon as when punctuation bit is set to a stair, using the picture of stair as the identifier of the punctuate position,As soon as when punctuation bit is set to a park, the identifier of the punctuate position is used as using the picture in a park.The embodiment of the present invention is simultaneouslyAbove-described various category attributes are not limited only to, any one category attribute that can be seen in actual life is can also be,The present invention is not limited thereto.
In an embodiment of this law, directly it can also be identified with the image information of each punctuate position, alsoIt is to say, at any one punctuate position in showing the navigation picture, is directly used as this with the image information of the punctuate positionThe category attribute of punctuate position.
In another embodiment of the present invention, the display methods of the navigation picture can also include：Show the navigation pictureIn each punctuate position character description information.Such as the step S22 in Fig. 2.Specifically, around the identifier of punctuate positionShow the character description information of the punctuate position.The character description information can be in the form of brief note form or prompting frameShow.
Further, the character description information is the specific descriptions to the punctuate position, for example, when a punctuation bit is set toDuring one parking stall, the character description information can include the environment description around the number on the parking stall, and the parking stall,For example, there is a The Wash on the left side on the parking stall, there is a business along the parking stall and the straight trip of the direction of the The Wash lineEntrance of field etc..When a punctuation bit is set to a stair or elevator, the character description information can describe the stair or electricityLadder particular location and several buildings etc. will be reached by the stair or elevator.When a punctuation bit is set to a bridge, the wordDescription information can describe the feature of this bridge, such as this bridge is the title of arch bridge and this bridge.The embodiment of the present inventionIt is not limited in the above-described description to punctuate position, can also be in any other that can recognize that the punctuate positionThe description of appearance, the present invention is not limited thereto.
The display methods of the navigation picture also includes：Show the voice description letter of each punctuate position in the navigation pictureBreath.Such as the step S23 in Fig. 2.Specifically, showing a voice around any one punctuate position in the navigation pictureSymbol, by triggering the phonic symbol, you can the voice description information of the punctuate position is obtained by a loudspeaker arrangement.Institute's predicateSound description information also be the punctuate position additional notes, its content can be by the character description information in the form of speechPlay back, that is to say, that the information content included in the voice description information is included with the character description informationThe information content be consistent, simply show that the form of the information content is different.Certainly, wrapped in the voice description informationThe content contained can also be from the information included in the character description information it is different, can part it is different or completeIt is complete different, it is also the further description to the punctuate position so that quicker during using the navigation pictureAnd easily find the punctuate position.
The present invention additionally provides a kind of method that return navigation is carried out using above-mentioned navigation picture with embodiment, for not havingIn the environment of GPS is covered or GPS can not be accurately positioned, departure place before how smoothly being returned from destination beforeProblem.Specifically, as shown in figure 3, Fig. 3 is the method using the progress return navigation of above-mentioned navigation picture in one embodiment of the inventionFlow chart.First, found on navigation picture and choose the punctuate position closest with current position, navigated as returnFirst punctuate position.Such as the step S31 in Fig. 3.Next, being found on the navigation picture and choosing the destination with return(departure place i.e., before) closest punctuate position, is used as destination punctuate position.Such as the step S32 in Fig. 3.Then,Selection one is set to departure place, destination punctuate position using first punctuation bit and is used as destination on the navigation pictureReturn navigation way.Such as the step S33 in Fig. 3.Selected return navigation way is back to the purpose along in step S33Landmark point position, then find around the destination punctuate position destination (departure place before i.e.) of the return.Such asStep S34 in Fig. 3.
It should be noted that in an embodiment of the present invention, in above-mentioned steps S33, being chosen in navigation picture sentimentUsing first punctuation bit be set to departure place, destination punctuate position as destination return navigation way during,Preferably, punctuate position known to selecting, it is of course also possible to automatically skip over known punctuate position.
One embodiment of the invention additionally provides a kind of device that navigation picture is drawn using above-mentioned navigation drawing drawing method, such as schemesShown in 4, Fig. 4 is the structural representation of navigation picture drafting and guider in one embodiment of the invention.The navigation picture draw andGuider includes：Data acquisition device, operation information harvester, storage device, control process device and display device.
Specifically, the data acquisition device is used for the information for obtaining the punctuate of each in navigation picture position.The present invention'sIn one embodiment, the information of each acquired punctuate position includes but is not limited to the image information of each punctuate position, voiceAny combination of a kind of information or much information in description information and character description information.Therefore, the data acquisition dressPut any one in including but not limited to image collecting device, voice acquisition device, video acquisition device and input unitOr any a variety of any combination.Further, described image harvester and video acquisition device include but is not limited to take the photographAs head, CCD and industrial camera etc. can obtain the device of image and video.The voice acquisition device includes but is not limited to wheatGram wind.
The operation information harvester is used to obtain the operation information brought into operation from departure place.One in the present invention is realApply in example, the operation information harvester includes but is not limited to acceleration transducer, electronic compass sensor and inertia and passedAny multiple combinations in sensor.
Specifically, when drawing walking navigation figure, the acceleration transducer obtains the information of the Z axis perpendicular to ground,Then the Z axis information is handled, it is hereby achieved that the gait waveform figure of people, then Fu is carried out to the gait waveform figureIn leaf transformation, you can obtain it is described meter step information.Certainly, in an embodiment of the present invention, it is not limited in passing by accelerationSensor come obtain it is described meter step information, in other embodiments of the invention, can also by other means method to obtainMeter step information is stated, the present invention is not limited thereto.
The direction of motion and angle information are obtained by the electronic compass sensor.The electronic compass sensorThe accurate angle relative to magnetic field of the earth can be obtained any position (including indoor and underground parking garage), according to obtainingThe accurate angle information relative to magnetic field of the earth obtained aids in the inertial sensor and then can obtain accurate motion sideTo and angle information.
The storage device is used for the letter for storing each punctuate position in the navigation picture acquired in the data acquisition deviceOperation information that breath, the follow acquired in the operation information harvester bring into operation and final from departure place to purposeNavigation way between ground.
Specifically, the character description information is the specific descriptions to the punctuate position, for example, when a punctuation bit is set to oneDuring parking stall, the character description information can include the environment description around the number on the parking stall, and the parking stall, exampleSuch as, there is a The Wash on the left side on the parking stall, has a market along the parking stall and the straight trip of the direction of the The Wash lineEntrance etc..When a punctuation bit is set to a stair or elevator, the character description information can describe the stair or elevatorParticular location and several buildings etc. will be reached by the stair or elevator.When a punctuation bit is set to a bridge, the word is retouchedThe feature of this bridge can be described by stating information, such as this bridge is the title of arch bridge and this bridge.The embodiment of the present invention is simultaneouslyThe above-described description to punctuate position is not limited only to, any other content that can recognize that the punctuate position is can also beDescription, the present invention is not limited thereto.
The voice description information is also the additional notes of the punctuate position, and its content can believe the word descriptionBreath is played back in the form of speech, that is to say, that the information content and the word included in the voice description informationThe information content that description information is included is consistent, simply shows that the form of the information content is different.Certainly, the voiceContent included in description information can also be from the information included in the character description information it is different, can part notIt is same or entirely different, it is also the further description to the punctuate position so that in the mistake using the navigation pictureIt is more quick and easily find the punctuate position in journey.
The control process device be used for control the data acquisition device, operation information harvester, storage device withAnd Each performs its own functions for display device, to realize the drafting to navigation picture from origin to destination.The display device is used to showShow the navigation picture from the departure place to destination.The display device is additionally operable to show the letter that the data acquisition device is obtainedBreath.
Specifically, the display device is additionally operable to show the identifier of each punctuate position in the navigation picture, the markThe picture that symbol is the category attribute that can clearly pick out punctuate position is known, for example, when a punctuation bit is set to an automobile, it is possible toIt is used as the identifier of the punctuate position with the picture of an automobile, as soon as when punctuation bit is set to an elevator, with the picture of elevatorAs the identifier of the punctuate position, as soon as when punctuation bit is set to a stair, the punctuate position is used as using the picture of stairIdentifier, as soon as when punctuation bit is set to a park, the identifier of the punctuate position is used as using the picture in a park.It is of the invention realApply example and be not limited in above-described various category attributes, can also be any one classification that can be seen in actual lifeAttribute, the present invention is not limited thereto.The identifier can also be each punctuate position that the data acquisition device is obtainedPictorial information or video information.
Further, the display device is additionally operable to show the word description letter of each punctuate position in the navigation pictureBreath.Specifically, showing the character description information of the punctuate position around the identifier of punctuate position.The word description letterBreath can be shown in the form of brief note form or prompting frame.
The character description information is the specific descriptions to the punctuate position, for example, when a punctuation bit is set to a parking stallWhen, the character description information can include the environment description around the number on the parking stall, and the parking stall, for example, shouldThere is a The Wash on the left side on parking stall, the entrance for having a market along the parking stall and the straight trip of the direction of the The Wash lineDeng.When a punctuation bit is set to a stair or elevator, the character description information can describe the specific of the stair or elevatorPosition and several buildings etc. will be reached by the stair or elevator.When a punctuation bit is set to a bridge, the character description informationThe feature of this bridge can be described, such as this bridge is the title of arch bridge and this bridge.The embodiment of the present invention is simultaneously not only limitedIn the above-described description to punctuate position, retouching for any other content that can recognize that the punctuate position can also beState, the present invention is not limited thereto.
The navigation picture is drawn and guider also includes a loudspeaker arrangement, and the loudspeaker arrangement is used to play the voiceThe voice description information that harvester is obtained.Specifically, being shown around any one punctuate position in the navigation pictureGo out a phonic symbol, by triggering the phonic symbol, you can the voice for obtaining the punctuate position by the loudspeaker arrangement is describedInformation.The voice description information is also the additional notes of the punctuate position, and its content can be by the character description informationPlay back in the form of speech, that is to say, that the information content included in the voice description information is retouched with the wordIt is consistent to state the information content that information included, and simply shows that the form of the information content is different.Certainly, the voice is retouchedState the content included in information can also be from the information included in the character description information it is different, can part notIt is same or entirely different, it is also the further description to the punctuate position so that in the mistake using the navigation pictureIt is more quick and easily find the punctuate position in journey.In one embodiment of this invention, the loudspeaker arrangement include butIt is not limited to loudspeaker and earphone etc..
In still another embodiment of the process, it can also be drawn using the navigation picture and guider carries out return navigation,For showing from original destination to the navigation way original departure place, to facilitate user to cover in no GPS orOriginal departure place is smoothly back in the case of person GPS is not accurate enough.
During being drawn using the navigation picture and guider carries out return navigation, the control process device first existsFound on navigation picture and choose the punctuate position closest with current position, first punctuation bit navigated as returnPut, then choose the punctuate position closest with the destination (departure place i.e., before) of return, be used as destination punctuation bitPut, then the first punctuate position and destination punctuate position further according to the return search out a bar navigation route, and willFirst punctuate position of the return, destination punctuate position and according to the two identified navigation way in the displayShown on device, to facilitate in navigation way and the navigation way of the user according to the display deviceFind the destination of return in each punctuate position.
The principle of the present invention is applicable to any type of mapping or navigation equipment.In a preferred embodiment, it is describedNavigation picture is drawn and guider is navigation equipment.One particular utility field is relevant with portable navigating device (PND).CauseThis, in embodiment, the mapping or the equipment that navigation equipment is portable navigating device (PND).
The present invention could be applicable to be provided as the navigation equipment of the part of integrated navigation systems.For example, it is described to leadChart is drawn and guider can form the part of integrated navigation systems in the vehicles.
The present invention also provides a kind of navigation system, and it includes appointing in described aspect of the invention or embodimentThe navigation picture of one is drawn and guider and a service being communicatively coupled with navigation picture drafting and guiderDevice.Therefore, in an embodiment of the present invention, methods described is a kind of method for the navigation equipment for operating navigation system.It is described to leadBoat system can be integrated navigation systems in the vehicles.
Specifically, when a navigation picture draw and guider using the navigation picture draw and guider obtain its fromAfter the navigation way of one departure place a to destination, the navigation way is sent to the server, with facilitate other with it is describedThe navigation picture drafting of server communication connection and guider obtain each punctuate in the navigation way and the navigation wayPosition, thus improve navigation picture draw and guider utilization rate, and then improve the navigation picture and draw and guiderPositioning precision.And then in GPS blind areas (no GPS covering or GPS can not pinpoint environment), the navigation system can also be utilizedSystem realizes navigation, improves Consumer's Experience.
It should be noted that can be that finite communication connects between the navigation picture drafting and guider and the serverConnect or wireless communication connection.Preferably, in current social, with the popularization of intelligent terminal, therebetween moreIt is wireless communication connection.Further, the server can be an independent computer equipment or one by manyThe cluster of individual computer equipment composition, can also be the cloud server being made up of multiple clusters certainly.The present invention is not with thisIt is limited.
The present invention extends also to a kind of computer program product, and the computer program product includes executable with executionState the computer-readable instruction of navigation drawing drawing method.
The present invention extends also to a kind of computer program product, and the computer program product includes executable with executionState the computer-readable instruction of the display methods of navigation picture.
The present invention extends also to a kind of computer program product, and the computer program product includes executable with executionState the computer-readable instruction of return air navigation aid.
Certainly, the computer program product can also be to include can perform performing above-mentioned navigation drawing drawing method, leadingThe computer-readable instruction of any multiple combinations in the display methods and return air navigation aid of chart.
Further, the embodiment of the present invention is provided navigation drawing drawing method, navigation picture are drawn guider and ledBoat system is applied also in the environment of GPS coverings, in the environment that GPS is covered, in the map making stage, can directly be passed throughGPS has obtained the particular location of departure place.During return is navigated, each punctuate position can be also obtained by GPSParticular location (such as the longitude and latitude of the punctuate position).
To sum up, guider and navigation system are drawn in navigation drawing drawing method provided in an embodiment of the present invention, navigation pictureIn system, in the case where no GPS is covered or can not be accurately positioned by GPS, during from origin to destination,Obtain departure place, destination and from origin to destination between each punctuate position information, draw out from it is described go outGround is sent out to the navigation way and navigation picture between destination.When being back to the departure place from the destination, Ke YiliWith above-mentioned navigation way and navigation picture from origin to destination, from the destination navigation to the departure place.So as toSolving can not navigate in current GPS blind areas and the problem of no return is navigated.
The preferred embodiments of the present invention are above are only, any restriction effect is not played to the present invention.Belonging to anyThose skilled in the art, in the range of technical scheme is not departed from, to the invention discloses technical scheme andTechnology contents make the variation such as any type of equivalent or modification, belong to the content without departing from technical scheme, stillBelong within protection scope of the present invention.