CN103063220A - Automobile navigation method and automobile navigation system - Google Patents
Automobile navigation method and automobile navigation system Download PDFInfo
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- CN103063220A CN103063220A CN2012105748503A CN201210574850A CN103063220A CN 103063220 A CN103063220 A CN 103063220A CN 2012105748503 A CN2012105748503 A CN 2012105748503A CN 201210574850 A CN201210574850 A CN 201210574850A CN 103063220 A CN103063220 A CN 103063220A
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Abstract
Embodiments in the invention disclose an automobile navigation method and an automobile navigation system. With the automobile navigation method and the automobile navigation system, navigation and positioning can be carried out on an automobile when satellite navigation signals are fully or partially obstructed. According to the embodiments in the invention, the method comprises the following steps: scanning a road sign printed with an identification code; acquiring geographical location information carried by the identification code; detecting and acquiring a distance between an automobile and the road sign printed with the identification code; acquiring latitude and longitude information about current location of the automobile based on the distance and geographical location information; and matching the latitude and longitude information with a preset display map so as to obtain the current location of the automobile on the preset display map and display the current location.
Description
Technical field
The present invention relates to the auto navigation art, especially relate to a kind of automobile navigation method and auto-navigation system.
Background technology
Along with development, satellite navigation system be widely applied to military affairs, civilian on, satellite navigation system can provide location and the navigation informations such as longitude, latitude, sea level elevation, speed, course, time in the world.And at present satellite navigator is applied on the surface car such as automobile more and more, and satellite navigator and navigation map and software can guide the driver to arrive the destination.
The core technology of auto navigation is location technology, by GPS (Global PositioningSystem is called for short GPS) or Beidou satellite navigation system etc., obtains the latitude and longitude information of oneself.; when satellite navigation signals is subject to all or part of blocking; block such as tunnel, mountain valley, overpass, intensive high-lager building etc.; the very weak or satellite of satellite-signal relies on when disturbed; satellite navigator is with regard to cisco unity malfunction, and the driver also just can't accurately know the geographic position of oneself.In order to address this problem, some gps satellite omniselectors also occur and in the GPS navigation system, increased inertial navigation element (such as gyro sensor) as auxiliary positioning, the inertial navigation technology difficulty is higher, cost is higher, be not used widely, if there is not for a long time satellite-signal, positioning error is also larger.
Summary of the invention
The embodiment of the invention provides a kind of automobile navigation method and auto-navigation system, can carry out navigator fix to automobile when satellite navigation signals is subject to all or part of blocking.
In view of this, first aspect present invention provides a kind of automobile navigation method, can comprise:
Scanning is printed on the road sign of identification code;
Obtain the geographical location information that carries in the described identification code;
Survey and obtain the distance between automobile and the described road sign that is printed on identification code;
According to described distance and described geographical location information, obtain the latitude and longitude information of automobile current location;
Described latitude and longitude information is shown that map mates with presetting, obtain that automobile is current to be preset the position that shows on the map and show described.
In some embodiments, the described scanning road sign that is printed on identification code is printed on the buildings that the electric pole of identification code or stone carving that scanning is printed on identification code or scanning are printed on identification code for scanning.
In some embodiments, the described geographical location information that carries in the described identification code that obtains comprises: obtain mark information and the traffic conditions information of carrying in the described identification code, wherein, described mark information comprises the latitude and longitude information of road sign own, and described traffic conditions information comprises the latitude and longitude information of near the terrestrial reference of described road sign, parking lot, hotel, public place of entertainment, hospital.
In some embodiments, described detection and obtain automobile and the described road sign that is printed on identification code between distance comprise: utilize infrared or radar detection and obtain automobile and the described road sign that is printed on identification code between distance.
Preferably, described obtain automobile current described preset the position that shows on the map and show after also comprise: described traffic conditions information and described presetting are shown that map mates, obtain the indicated place of described traffic conditions information and preset the also demonstration of position that shows on the map described.
Second aspect present invention provides a kind of auto-navigation system, can comprise:
Be printed on the road sign of identification code;
Place vehicle front, be used for scanning the described road sign that is printed on identification code, obtain the road sign end of scan of the geographical location information that carries in the described identification code;
Place vehicle front, be used for to survey and obtain the distance measurement terminal of the distance between automobile and the described road sign that is printed on identification code;
Be connected with the distance measurement terminal with described road sign end of scan, be used for according to described distance and described geographical location information, obtain the latitude and longitude information of automobile current location; Described latitude and longitude information is shown that map mates with presetting, and it is current at the described data processor that shows the position on the map that presets to obtain automobile;
Be connected with described data processor, it is current at the described display terminal that shows the position on the map that presets to be used for display automobile.
In some embodiments, described road sign end of scan comprises: be used for the scan module that scanning is printed on the road sign of identification code; Be used for obtaining described identification code and carry the latitude and longitude information of road sign own, and the acquisition of information module of the latitude and longitude information of near the terrestrial reference the described road sign, parking lot, hotel, public place of entertainment, hospital.
In some embodiments, the described road sign that is printed on identification code is to be printed on the electric pole of identification code or to be printed on the stone carving of identification code or to be printed on the buildings of identification code.
In some embodiments, described distance measurement terminal is infrared eye or radar detedtor.
In some embodiments, described display terminal is LCDs.
As can be seen from the above technical solutions, a kind of automobile navigation method and auto-navigation system that the embodiment of the invention provides, the road sign that utilization is printed on identification code obtains the geographical location information that carries in the identification code, and obtain the latitude and longitude information of automobile current location according to the distance between automobile and this road sign, it is shown that map mates with presetting, thereby can know intuitively the map location that automobile is current, do not need to launch an artificial satellite to provide latitude and longitude information, can when satellite navigation signals is subject to all or part of blocking, can carry out navigator fix to automobile yet.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the below will describe to embodiment the simply introduction of accompanying drawing do of required use, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of automobile navigation method schematic flow sheet that Fig. 1 provides for the embodiment of the invention;
Another schematic flow sheet of a kind of automobile navigation method that Fig. 2 provides for the embodiment of the invention;
A kind of auto-navigation system structural representation that Fig. 3 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of automobile navigation method and auto-navigation system, can carry out navigator fix to automobile when satellite navigation signals is subject to all or part of blocking.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
Below be elaborated respectively.
Please refer to Fig. 1, a kind of automobile navigation method schematic flow sheet that Fig. 1 provides for the embodiment of the invention, wherein, described method comprises:
Be understandable that described road sign can be that electric pole, stone carving, buildings and other have fixing
The article of position are printed on identification code on the described road sign, and described identification code can adopt the methods such as air brushing or printing to be attached on the road sign, and wherein, but described identification code can be the identification code of two-dimensional bar or three-dimensional barcode or other expressing information and record data;
From the above, a kind of automobile navigation method that the embodiment of the invention provides, the road sign that utilization is printed on identification code obtains the geographical location information that carries in the identification code, and obtain the latitude and longitude information of automobile current location according to the distance between automobile and this road sign, it is shown that map mates with presetting, thereby can know intuitively the map location that automobile is current, do not need to launch an artificial satellite to provide latitude and longitude information, can when satellite navigation signals is subject to all or part of blocking, can carry out navigator fix to automobile yet.
For ease of understanding, the embodiment of the invention is carried out labor with a concrete application scenarios to automobile navigation method, wherein under this application scenarios, the identification code that automobile scans is most widely used two-dimensional bar, be understandable that, the method of telling about is equally applicable to other identification codes such as three-dimensional barcode, does not do concrete restriction herein.
Please refer to Fig. 2, a kind of automobile navigation method schematic flow sheet that Fig. 2 provides for the embodiment of the invention, wherein, described method comprises:
Step 201, scanning are printed on the road sign of two-dimensional bar;
Be understandable that described road sign can be that electric pole, stone carving, buildings and other have the article of fixed position, is printed on two-dimensional bar on the described road sign, described two-dimensional bar can adopt the methods such as air brushing or printing to be attached on the road sign.
Step 202, obtain the geographical location information that carries in the described two-dimensional bar;
In some embodiments, can be specially: obtain mark information and the traffic conditions information of carrying in the described two-dimensional bar, wherein, described mark information comprises the latitude and longitude information of road sign own, and described traffic conditions information comprises the latitude and longitude information of the peripheral facilities such as near the terrestrial reference of described road sign, parking lot, hotel, public place of entertainment, hospital.That is to say that the geographical location information that carries in the identification code (two-dimensional bar) is not equal to the used coding of traffic police, but some concrete geography information, such as latitude and longitude information.
Wherein, automobile can pass through beam coupling device (CCD, Charge Couple Device) the identification reader scans two-dimensional bar and obtains geographical location information, also can pass through wireless transmission, namely send scanning light beam in the automobile and learn the geographical location information that carries in the two-dimensional bar.
Step 203, utilize infrared or radar detection and obtain automobile and the described road sign that is printed on two-dimensional bar between distance;
Step 204, according to described distance and the latitude and longitude information of described road sign own, obtain the latitude and longitude information of automobile current location;
Because in step 202, automobile can get access to the latitude and longitude information of road sign own and traffic conditions information, the automobile that can detect according to the latitude and longitude information of described road sign own and step 203 particularly and the distance between the road sign calculate the latitude and longitude information of automobile; In embodiments of the present invention, distance between described automobile and the described road sign that is printed on two-dimensional bar can be 10 meters to 30 meters, be understandable that, this distance may have different values in different practical application scenes, in the higher scene of some degree of accuracy, therefore the scope that may detect can be larger, the concrete value of the distance between automobile and the described road sign that is printed on identification code do not limited.
Step 205, the latitude and longitude information of automobile current location is shown that map mates with presetting, obtain that automobile is current to be preset the position that shows on the map and show described;
Be understandable that, described presetting shows that map is pre-stored in vehicle processor, the latitude and longitude information of automobile current location is shown that map mates with presetting, the latitude and longitude information of the digital format that step 204 can be obtained is converted to the particular location on the map, show to user vehicle intuitively, in order to utilize this demonstration image to carry out navigator fix.
Preferably, described obtain automobile current described preset the position that shows on the map and show after can also comprise: described traffic conditions information and described presetting are shown that map mates, obtain the indicated place of described traffic conditions information and preset the also demonstration of position that shows on the map described; Wherein, described traffic conditions information is the latitude and longitude information of the peripheral facilities such as near the terrestrial reference of fingerpost, parking lot, hotel, public place of entertainment, hospital, similarly, these latitude and longitude information are shown that map mates, and can be converted to the latitude and longitude information of digital format the particular location on the map with presetting; Under this embodiment, owing to the automobile current location can show in map, and the indicated place of traffic conditions information also can show in map, so user vehicle can as required, navigate to the indicated place of traffic conditions information.
From the above, a kind of automobile navigation method that the embodiment of the invention provides, the road sign that utilization is printed on identification code obtains the geographical location information that carries in the identification code, and obtain the latitude and longitude information of automobile current location according to the distance between automobile and this road sign, it is shown that map mates with presetting, thereby can know intuitively the map location that automobile is current, do not need to launch an artificial satellite to provide latitude and longitude information, can when satellite navigation signals is subject to all or part of blocking, can carry out navigator fix to automobile yet.
For ease of better implementing the technical scheme of the embodiment of the invention, the embodiment of the invention also is provided for implementing the related system of above-mentioned automobile navigation method.Wherein identical in the implication of noun and the above-mentioned automobile navigation method, the explanation of specific implementation details in can reference method embodiment.
Please refer to Fig. 3, a kind of auto-navigation system structural representation that Fig. 3 provides for the embodiment of the invention, wherein, described system comprises:
Be printed on the road sign 301 of identification code;
Place vehicle front, be used for scanning the described road sign 301 that is printed on identification code, obtain the road sign end of scan 302 of the geographical location information that carries in the described identification code;
Place vehicle front, be used for to survey and obtain the distance measurement terminal 303 of the distance between automobile and the described road sign 301 that is printed on identification code;
Are connected with the distance measurement terminal with described road sign end of scan 302 and are connected, be used for according to described distance and described geographical location information, obtain the latitude and longitude information of automobile current location; Described latitude and longitude information is shown that map mates with presetting, and it is current at the described data processor 304 that shows the position on the map that presets to obtain automobile;
Be connected with described data processor 304, it is current at the described display terminal 305 that shows the position on the map that presets to be used for display automobile.
Be understandable that, the described road sign that is printed on identification code 301 is for being printed on the electric pole of identification code or being printed on the stone carving of identification code or being printed on the buildings of identification code, or other are printed on the article with fixed position of identification code, be printed on identification code on the described road sign 301, described identification code can adopt the methods such as air brushing or printing to be attached on the road sign, wherein, but described identification code can be the identification code of two-dimensional bar or three-dimensional barcode or other expressing information and record data; What expect easily in addition is that road sign end of scan 302, distance measurement terminal 303, data processor 304 and display terminal 305 all arrange at automobile in the described system.
In some embodiments, described road sign end of scan 302 can comprise: be used for the scan module that scanning is printed on the road sign 301 of identification code; Be used for obtaining described identification code and carry the latitude and longitude information of road sign own, and the acquisition of information module of the latitude and longitude information of near the terrestrial reference the described road sign 301 that is printed on identification code, parking lot, hotel, public place of entertainment, hospital.That is to say that the geographical location information that carries in the identification code is not equal to the used coding of traffic police, but some concrete geography information, such as latitude and longitude information.
In some embodiments, described distance measurement terminal 303 can be infrared eye or radar detedtor.
In this embodiment, distance between the automobile that can be specifically be used for the data processor 304 own latitude and longitude information of road sign that gets access to according to described road sign end of scan 302 and distance measurement terminal 303 detect and the road sign 301 that is printed on identification code calculates the latitude and longitude information of automobile; In embodiments of the present invention, distance between described automobile and the described road sign 301 that is printed on identification code can be 10 meters to 30 meters, be understandable that, this distance may have different values in different practical application scenes, in the higher scene of some degree of accuracy, therefore the scope that may detect can be larger, the concrete value of the distance between automobile and the described road sign that is printed on identification code do not limited.
Data processor 304 calculates after the latitude and longitude information of automobile current location, the latitude and longitude information of automobile current location is shown that map mates with presetting, the latitude and longitude information of the digital format that obtains can be converted to the particular location on the map, described display terminal 305 can be LCDs, be used for showing current particular location to user vehicle intuitively, in order to utilize this demonstration image to carry out navigator fix.
Preferably, traffic conditions information and described presetting that data processor 304 can also be used for described road sign end of scan 302 is got access to show that map mates, and obtain the indicated place of described traffic conditions information and also show in the described position that shows on the map of presetting; Wherein, described traffic conditions information refers to be printed on the latitude and longitude information of the peripheral facilities such as near the road sign 301 of identification code terrestrial reference, parking lot, hotel, public place of entertainment, hospital, similarly, these latitude and longitude information are shown that map mates, and can be converted to the latitude and longitude information of digital format the particular location on the map with presetting; Under this embodiment, because the automobile current location can show in map by display terminal 305, and the indicated place of traffic conditions information also can show in map by display terminal 305, therefore user vehicle can as required, navigate to the indicated place of traffic conditions information.
From the above, a kind of auto-navigation system that the embodiment of the invention provides, the road sign that utilization is printed on identification code obtains the geographical location information that carries in the identification code, and obtain the latitude and longitude information of automobile current location according to the distance between automobile and this road sign, it is shown that map mates with presetting, thereby can know intuitively the map location that automobile is current, do not need to launch an artificial satellite to provide latitude and longitude information, can when satellite navigation signals is subject to all or part of blocking, can carry out navigator fix to automobile yet.
The those skilled in the art can be well understood to, and is the convenience described and succinct, and the specific works process of the unit module in the system of foregoing description can with reference to the corresponding process among the preceding method embodiment, not repeat them here.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of programmed instruction, aforesaid program can be stored in the computer read/write memory medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-OnlyMemory), the various media that can be program code stored such as random access memory (RAM, Random Access Memory), magnetic disc or CD.
More than a kind of automobile navigation method provided by the present invention and auto-navigation system are described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. an automobile navigation method is characterized in that, comprising:
Scanning is printed on the road sign of identification code;
Obtain the geographical location information that carries in the described identification code;
Survey and obtain the distance between automobile and the described road sign that is printed on identification code;
According to described distance and described geographical location information, obtain the latitude and longitude information of automobile current location;
Described latitude and longitude information is shown that map mates with presetting, obtain that automobile is current to be preset the position that shows on the map and show described.
2. method according to claim 1 is characterized in that, the road sign that described scanning is printed on identification code is: scanning is printed on the buildings that the electric pole of identification code or stone carving that scanning is printed on identification code or scanning are printed on identification code.
3. method according to claim 1 is characterized in that, the described geographical location information that carries in the described identification code that obtains comprises:
Obtain mark information and the traffic conditions information of carrying in the described identification code, wherein, described mark information comprises the latitude and longitude information of road sign own, and described traffic conditions information comprises the latitude and longitude information of near the terrestrial reference of described road sign, parking lot, hotel, public place of entertainment, hospital.
4. according to claim 1 to 3 each described methods, it is characterized in that, described detection and obtain automobile and the described road sign that is printed on identification code between distance comprise:
Utilize infrared or radar detection and obtain automobile and the described road sign that is printed on identification code between distance.
5. method according to claim 3 is characterized in that, described obtain automobile current described preset the position that shows on the map and show after also comprise:
Described traffic conditions information and described presetting are shown that map mates, obtain the indicated place of described traffic conditions information and also show in the described position that shows on the map of presetting.
6. an auto-navigation system is characterized in that, comprising:
Be printed on the road sign of identification code;
Place vehicle front, be used for scanning the described road sign that is printed on identification code, obtain the road sign end of scan of the geographical location information that carries in the described identification code;
Place vehicle front, be used for to survey and obtain the distance measurement terminal of the distance between automobile and the described road sign that is printed on identification code;
Be connected with the distance measurement terminal with described road sign end of scan, be used for according to described distance and described geographical location information, obtain the latitude and longitude information of automobile current location; Described latitude and longitude information is shown that map mates with presetting, and it is current at the described data processor that shows the position on the map that presets to obtain automobile;
Be connected with described data processor, it is current at the described display terminal that shows the position on the map that presets to be used for display automobile.
7. system according to claim 6 is characterized in that, described road sign end of scan comprises:
Be used for the scan module that scanning is printed on the road sign of identification code;
Be used for obtaining described identification code and carry the latitude and longitude information of road sign own, and the acquisition of information module of the latitude and longitude information of near the terrestrial reference the described road sign that is printed on identification code, parking lot, hotel, public place of entertainment, hospital.
8. system according to claim 6 is characterized in that, the described road sign that is printed on identification code is to be printed on the electric pole of identification code or to be printed on the stone carving of identification code or to be printed on the buildings of identification code.
9. according to claim 6 to 8 each described systems, it is characterized in that described distance measurement terminal is infrared eye or radar detedtor.
10. according to claim 6 to 8 each described systems, it is characterized in that described display terminal is LCDs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210574850.3A CN103063220B (en) | 2012-12-26 | 2012-12-26 | A kind of automobile navigation method and auto-navigation system |
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| CN201210574850.3A CN103063220B (en) | 2012-12-26 | 2012-12-26 | A kind of automobile navigation method and auto-navigation system |
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| CN105531601A (en) * | 2013-09-20 | 2016-04-27 | 卡特彼勒公司 | Positioning system |
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| CN109062969A (en) * | 2018-06-28 | 2018-12-21 | 深圳市轱辘汽车维修技术有限公司 | A kind of vehicle positioning method and relevant device |
| CN112414414A (en) * | 2019-08-23 | 2021-02-26 | 华为技术有限公司 | Positioning method and positioning device |
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