CN103077624B - A kind of instant navigation road condition system based on GPS and air navigation aid - Google Patents
A kind of instant navigation road condition system based on GPS and air navigation aid Download PDFInfo
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- CN103077624B CN103077624B CN201210587020.4A CN201210587020A CN103077624B CN 103077624 B CN103077624 B CN 103077624B CN 201210587020 A CN201210587020 A CN 201210587020A CN 103077624 B CN103077624 B CN 103077624B
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Abstract
The invention provides a kind of real-time road condition navigational system based on GPS, comprise: locating module, numerical map, map match unit and reminding unit, it is characterized in that: described navigational system also comprises: video monitor unit, in order to obtain the video of surrounding road condition; Image acquisition unit, in order to the video acquisition key images obtained from video monitor unit; Graphics processing unit, in order to obtain image command information from key images; Integrated information processing unit, in order to overall treatment GPS and image information, and obtains final command information; Reminding unit, in order to inform user by final command information.The invention has the beneficial effects as follows enough more accurately for driver provides more accurate, more effective navigation information, effectively avoid because the situation that the error of traditional GPS navigation and numerical map upgrade not in time occurs.
Description
Technical field
The invention belongs to guidance field, especially relate to a kind of real-time road condition navigational system based on GPS and air navigation aid.
Background technology
In recent years, keep the background increased fast in economy under, automobile progressively entered average family, and National Information Center estimates, China will exceed the U.S. before and after 2015, and when the time comes, market capacity will more than 17,000,000.Meanwhile, highway in China construction, also at development, all can increase the highway of several ten thousand kilometers newly every year, driver on road through being unfamiliar with area time, usually need the auxiliary of navigational system, existing GPS navigation system relies on GPS and generalized information system, can give driver suitable guide accurately.But mainly there is following problem in existing GPS navigation system:
GPS is due to the problem of precision, and error is generally within tens meters, and for more complicated crossing or viaduct, especially there is close crossing, several position or crossing, this error very easily causes fatal navigational error.Mislead driver and miss correct route.
In addition; because highway development makes rapid progress; often have the route newly built up; or due to other reasons; incity, city road conditions there occurs larger change; but the built-in electronic chart of GPS upgrades often needs a period of time, have certain delayed compared with reality, easily give driver with the guide of mistake.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of real-time road condition navigational system based on GPS and air navigation aid, is especially applicable to using when often changing with load conditions.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of real-time road condition navigational system based on GPS, comprising: locating module, numerical map, map match unit and reminding unit, and described navigational system also comprises:
Video monitor unit, in order to obtain the video of surrounding road condition;
Image acquisition unit, in order to the video acquisition key images obtained from video monitor unit;
Graphics processing unit, in order to obtain image command information from key images;
Integrated information processing unit, in order to overall treatment GPS and image information, and obtains final command information;
Reminding unit, in order to inform user by final command information.
Further, described graphics processing unit comprises:
Storage unit, in order to store corresponding road sign figure and implication;
Contrast unit, in order to the road sign figure that will capture compared with the road sign figure of storage;
Word recognition unit, in order to obtain corresponding Word message from key images.
Further, described video monitor unit is camera.
Further, described reminding unit is speech utterance equipment.
Further, described reminding unit is screen display device.
Further, described real-time road condition navigational system also comprises: in order to calculate the taximeter of operating range.
According to a further aspect in the invention, present invention also offers the air navigation aid that a kind of real-time road condition based on GPS navigates, comprising:
The positional information that map match unit obtains according to locating module obtains navigation information;
Obtain real-time road condition video;
Key images is determined from real-time road condition video;
Command information is obtained from key images;
Command information and navigation information are compared, obtains final command information;
Command information is informed user.
Further, the 4th described step comprises:
1) if command information is consistent with navigation information, then command information is informed user;
2) if command information and navigation information inconsistent, then obtained the key images of second guideboard by video monitor unit and image acquisition unit;
3) by first guideboard be start taximeter, and by during second guideboard stop have the records of distance by the log;
4) by graphics processing unit, second guideboard key images is processed, and draw the distance between first guideboard and second guideboard by integrated information processing unit;
5) distance that taximeter calculates by integrated information processing unit compares with the distance calculated through graphics processing unit, if unanimously, then command information is informed user, as inconsistent, then navigation information is informed user.
The advantage that the present invention has and good effect are: owing to adopting technique scheme, can more accurately for driver provides more accurate, more effective navigation information, effectively avoids because the situation that the error amount of money numerical map of traditional GPS navigation upgrades not in time occurs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is flow processing schematic diagram of the present invention
Fig. 3 is one embodiment of the present of invention application scenarios schematic diagram
Fig. 4 is deterministic process schematic flow sheet in one embodiment of the present of invention application scenarios
Embodiment
As depicted in figs. 1 and 2, when driver vehicle, the locating module of GPS receives the present position of vehicle, is combined with electronic chart by map match unit, is combined, draw the navigation information of track route by the relevant information that electronic chart prestores.Namely the video monitor unit of native system starts to carry out work, in order to catch the instant change of surrounding road condition, image data unit carries out sampling processing according to the frequency of setting to video image, this frequency can set as the case may be, 1hz or higher frequency can be taked, arranged the two field picture for certain hour interval, and judge whether to belong to the predefined key images of system according to the content in two field picture, key images refers to the image that may comprise the visible transport information of the multi views such as guideboard.Graphics processing unit processes the key images that previous step obtains, and compare with the image of pre-stored in storer, if comparison meets, then by its record, and by word recognition unit, the word on direction board is identified, and sending these information to reminding unit, reminding unit passes through voice-output unit, by above-mentioned information by speech play to driver, for driver's reference.
When running into scene as shown in Figure 3, the locating module of GPS receives the present position of vehicle, combined with electronic chart by map match unit, combined by the relevant information that electronic chart prestores, can in judging that in this guideboard certain distance guidance path should in the inside turn of certain distance, now, video monitor unit also can get the corresponding video of guideboard, image data unit carries out sampling processing according to the frequency of setting to video image, obtain the key images about guideboard instruction, graphics processing unit is compared by the transport information image prestored in contrast unit and storage unit, and by word recognition unit, Word message corresponding on guideboard is identified, comprehensively draw, forward and turn left the to turn right relevant information of destination of driving towards and the range information apart from turning crossing, also can judge that guidance path should in the inside turn of certain distance.
The related navigational information that integrated information processing unit overall treatment GPS and vision navigation system obtain, and both information is compared, if come to the same thing, then confirm that navigation information is errorless, informs navigation information by voice broadcast unit to driver.Ordinary highway is all provided with multiple indication guide board for the navigation at a crossing at diverse location, and the present invention formally make use of this feature and verifies navigation information.When integrated information processing unit more out the related navigational information that obtains of GPS and vision navigation system and inconsistent time, integrated information processing unit can notify that image acquisition unit improves frequency acquisition, and image acquisition unit capture automobile by this indication guide board in start taximeter, with since calculate distance travelled, video monitor unit, image acquisition unit and graphics processing unit identify second piece of guideboard according to the above-mentioned recognition method to a guideboard, to draw the relevant information of the destination driven towards of second piece of guideboard instruction and the range information apart from turning crossing, obtained two pieces, front and back guideboard positional information is compared, and compare according to the distance that the positional information calculation on guideboard goes out on the distance of two pieces of guideboards and taximeter, if met, then inform to driver the navigation results that vision guided navigation information draws by voice broadcast unit, if do not met, then inform to driver the navigation results that GPS navigation draws.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (1)
1., based on an air navigation aid for the real-time road condition navigational system of GPS, the described real-time road condition navigational system based on GPS comprises: locating module, numerical map, map match unit and
Video monitor unit, in order to obtain the video of surrounding road condition;
Image acquisition unit, in order to the video acquisition key images obtained from video monitor unit;
Graphics processing unit, in order to obtain image command information from key images;
Integrated information processing unit, in order to overall treatment GPS and image information, and obtains final command information;
Reminding unit, in order to inform user by final command information;
In order to calculate the taximeter of operating range,
Based on the air navigation aid of above-mentioned real-time road condition navigational system, comprise the steps:
1) real-time road condition video is obtained;
2) from real-time road condition video, key images is determined;
3) from key images, command information is obtained;
4) command information and navigation information are compared, obtain final command information;
5) command information is informed user;
It is characterized in that: described air navigation aid the 4th step also comprises:
1) if command information is consistent with navigation information, then command information is informed user;
2) if command information and navigation information inconsistent, then obtained the key images of second guideboard by video monitor unit and image acquisition unit;
3) by first guideboard time start taximeter, and by during second guideboard stop have the records of distance by the log;
4) by graphics processing unit, second guideboard key images is processed, and draw the distance between first guideboard and second guideboard by integrated information processing unit;
5) distance that taximeter calculates by integrated information processing unit compares with the distance calculated through graphics processing unit, if unanimously, then command information is informed user, as inconsistent, then navigation information is informed user.
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| CN201210587020.4A CN103077624B (en) | 2012-12-28 | 2012-12-28 | A kind of instant navigation road condition system based on GPS and air navigation aid |
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| CN201210587020.4A CN103077624B (en) | 2012-12-28 | 2012-12-28 | A kind of instant navigation road condition system based on GPS and air navigation aid |
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| CN103077624B true CN103077624B (en) | 2015-07-29 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106153058B (en) * | 2015-04-13 | 2020-08-14 | 酷派软件技术（深圳）有限公司 | Navigation method, navigation device and terminal |
| CN107560622A (en) * | 2016-07-01 | 2018-01-09 | 板牙信息科技（上海）有限公司 | A kind of method and apparatus based on driving image-guidance |
| US10801853B2 (en) | 2016-07-25 | 2020-10-13 | Ford Global Technologies, Llc | Method and apparatus for upcoming turn identification and assistance |
| CN106323315A (en) * | 2016-09-14 | 2017-01-11 | 百度在线网络技术（北京）有限公司 | Live broadcast navigation method and device |
| CN106651953B (en) * | 2016-12-30 | 2019-10-18 | 山东大学 | A kind of vehicle position and orientation estimation method based on traffic sign |
| US11725957B2 (en) | 2018-11-02 | 2023-08-15 | Google Llc | Context aware navigation voice assistant |
| CN110763246A (en) * | 2019-08-06 | 2020-02-07 | 中国第一汽车股份有限公司 | Automatic driving vehicle path planning method and device, vehicle and storage medium |
| CN111998861B (en) * | 2020-09-29 | 2023-03-14 | 阿波罗智联(北京)科技有限公司 | Vehicle prompting method, device, equipment and storage medium |
| CN115200596A (en) * | 2021-04-13 | 2022-10-18 | 上海亮衡信息科技有限公司 | AI navigation method, device, computer equipment and storage medium |
| CN113240923B (en) * | 2021-07-08 | 2021-09-17 | 深圳市汇鑫垒刀模科技有限公司 | Processing method and system for abnormal prompt information state of lane |
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| CN1755326A (en) * | 2004-10-01 | 2006-04-05 | 株式会社日立制造作 | Navigation apparatus |
| CN1880918A (en) * | 2005-06-14 | 2006-12-20 | Lg电子株式会社 | Matching camera-photographed image with map data in portable terminal and travel route guidance method |
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