CN101576389A - Error correcting method of navigation system - Google Patents
Error correcting method of navigation system Download PDFInfo
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- CN101576389A CN101576389A CNA2009100846264A CN200910084626A CN101576389A CN 101576389 A CN101576389 A CN 101576389A CN A2009100846264 A CNA2009100846264 A CN A2009100846264A CN 200910084626 A CN200910084626 A CN 200910084626A CN 101576389 A CN101576389 A CN 101576389A
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Abstract
The invention relates to an error correcting method of a navigation system. The method receives GPS positioning information under a navigation error-correcting mode by starting the mode, judges whether a navigation object deviates from a planned path, if so, acquiring a standby channel in a first distance of the navigation object and displaying the standby channel provided for a user for selection. After adopting the technical proposal, the navigation system also can provide the chance of correcting the current positioning channel when the distance between the channels is shorter; therefore, compared with the existing navigation system of which the current positioning path can not correct errors, the invention reduces the possibility of traffic accident occurrence and improves the navigation information accuracy of the navigation system.
Description
Technical field
The invention belongs to field of navigation technology, relate in particular to a kind of air navigation aid that can correct guidance path under specific circumstances.
Background technology
At present, (Global Positioning System GPS) is one of GPS navigation important application direction to automobile-used GPS.The gps antenna of automobile-used GPS navigation system receives from 3 data messages that transmitted in earth-circling 24 gps satellites at least, in conjunction with the electronic chart that is stored in the Vehicular navigation terminal, the position coordinates of determining by gps satellite signal is complementary therewith, determines the accurate position of navigation object in electronic chart.The user of steering vehicle can transfer to computer and select driving path when driving, and as direction guiding, thereby correctly arrive the destination apace.
(Global Positioning System, GPS) in the navigational system, the most desirable error of present stage GPS receiving trap also will reach ± 15 meters scopes in existing GPS.And the electronic map data that this navigational system is adopted self, its production run also is to use the GPS information track of having gathered to write down to make up, and therefore, also there is same error range in electronic map data.
Because adding up of both errors makes composition error to float in tens meters scope.Therefore, navigational system has certain degrees of tolerance for site error, and promptly it can depart from the certain threshold value of path planning in actual location information, and near behind another road, just carries out the path and rerun.Such processing mode makes troubles for user's use when the two road distance is too small.
For example, current navigation object is cruising on the viaduct just, and because positioning error, and navigational system but is positioned at navigation object on the surface road below the viaduct.At this moment, the path that navigational system is planned out is owing to travel surface road below the viaduct, viaduct that this path and navigation object are travelling and onrelevant.And for example, user's former guidance path is to be on the main stem of through street, and after the user entered auxilliary road, because positioning error, navigational system but continued navigation object to be positioned on the main stem (former guidance path), does not carry out the path and reruns.Owing to may have the isolation strip between the major-minor road, at this moment, the path that navigational system is planned out is too big not related with main stem yet.
In sum, when navigational system is positioned at navigation object on the wrong path, if there is not suitable mechanism to correct a mistake, the system that then can the make path of can't reruning, induction information is worth extremely low, and causes the generation of traffic hazard easily.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of guider, relates in particular to a kind of air navigation aid that can correct guidance path under specific circumstances.
The objective of the invention is to be achieved through the following technical solutions:
A kind of error correcting method of navigation system said method comprising the steps of:
A. start the navigation error correction mode;
B. receive the GPS locating information;
C. judge whether navigation object departs from the path of having planned, if navigation object departs from the path of having planned, execution in step d then, otherwise continue execution in step c;
D. obtain near the interior alternative road of one first distance of navigation object, and show that described alternative road is for user's selection.
In error correcting method of navigation system of the present invention, described step a may further comprise the steps:
A1. receive the GPS locating information;
A2. judge whether navigation object is in complicated highway section,, otherwise continue execution in step a2 if navigation object is in then execution in step a3 of complicated highway section;
A3. start the navigation error correction mode.
In error correcting method of navigation system of the present invention, when on the electronic chart arbitrarily the distance between two road be no more than a second distance, and described navigation object thinks that then described navigation object is to be in complicated highway section when being in wherein on the road.
In error correcting method of navigation system of the present invention, described second distance is 15 meters.
In error correcting method of navigation system of the present invention, when described navigation object more than 10 meters, thinks then that described navigation object departs from the path of having planned apart from the path of having planned.
In error correcting method of navigation system of the present invention, described first distance is 30 meters.
In error correcting method of navigation system of the present invention, the minor increment that described first distance be described navigation object in the distance in some highway sections of composition road.
In error correcting method of navigation system of the present invention, described navigation object is determined in the following manner to the distance in the highway section of described composition road: the vertical line that is made to described highway section from navigation object, judge whether described intersection point drops on the described highway section, if intersection point drops on the described highway section, then arrive the distance in described highway section as described navigation object with the distance of navigation object and intersection point; If intersection point does not drop on the described highway section, then with navigation object to the distance of described highway section two end nodes the shorter one as the distance of described navigation object to described highway section.
After having adopted technical scheme of the present invention, navigational system hour also can provide the chance of correcting current location road in the road spacing, thereby compares the existing navigational system of the current location road that can't right the wrong.The present invention has reduced the possibility that traffic hazard takes place, the navigation information accuracy that has improved navigational system.
Description of drawings
Fig. 1 judges whether to need to start the process flow diagram of navigation error correction mode for error correcting method of navigation system of the present invention.
Fig. 2 is for after error correcting method of navigation system of the present invention starts the navigation error correction mode, the process flow diagram that guidance path is carried out error correction.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Design of the present invention is that navigational system starts error correction mode when judging that navigation object is in complicated highway section.Under this pattern, navigational system reduces the tolerance threshold value of site error.After definite navigation object departs from former guidance path, list original route and can select road on every side, select its residing tram for the user, to generate correct guidance path.
See also Fig. 1, error correcting method of navigation system of the present invention at first judges whether to need to start the navigation error correction mode, and it may further comprise the steps:
In step S101, receive the GPS locating information;
In step S103, judge whether navigation object is in complicated highway section.In preferred implementation of the present invention, when on the electronic chart arbitrarily the distance between two road be no more than 15 meters, and navigation object thinks that then navigation object is to be in complicated highway section when being in wherein on the road.This judging distance value can be set up on their own by the user.If navigation object is in complicated highway section, then start the navigation error correction mode, judge otherwise continue to receive locating information.
In step S105, start the navigation error correction mode.
See also Fig. 2, after starting the navigation error correction mode, the process flow diagram that guidance path is carried out error correction.It may further comprise the steps:
In step S201, receive the GPS locating information;
In step S202, judge whether navigation object departs from the path of having planned.If navigation object has departed from the path of having planned, then execution in step S203 judges otherwise continue to receive locating information.Under error correction mode, navigational system is reduced to 10 meters of this preferred implementation to the tolerance threshold value of site error, and the user can set up on their own as required.When the former guidance path of navigation object distance is more than 10 meters, just be deflection path promptly.
In step S203, obtain the alternative road near the certain distance of navigation object.In this preferred implementation, this distance range is set to 30 meters.The information of road comprises road name, and identify label (Identify, ID), the set of node of wagon flow direction and orderly composition road.Wherein, the concrete nodal information of node correspondence comprises node ID, longitude, latitude etc.Because node is orderly, so adjacent node can be used for constituting the highway section; By the intersection point of differentiate boat object, can further try to achieve intersection point and whether drop on the highway section to place, highway section straight line; If intersection point drops on the highway section, the distance of then using navigation object and intersection point is as the distance of anchor point to this highway section; If intersection point does not drop on the highway section, then with navigation object to the distance of highway section two end nodes the shorter one as the distance of anchor point to this highway section.Must there be minimum one in navigation object to a road in the distance in each highway section, be the bee-line of navigation object to this road.System shows all navigation objects of calculate finding to the bee-line of road those roads less than distance range.
In step S204, select alternative road the interface being prompted to the user.
In step S205, judge whether the prompting time limit arrives.If, and then execution in step S206, if not, then transfer execution in step S207.
In step S206, the cancellation road is selected the prompting interface.Forward step S201 after finishing to.
In step S207, judge whether the user has assigned operational order.If then transfer execution in step S208, otherwise return execution in step S205.
In step S206, whether the decision operation instruction is to select the road instruction.If, execution in step S209, otherwise then execution in step S210.
In step S209, navigation object is navigated on the road of user's selection.Forwarding step S112 then to carries out.
In step S210, carry out the instruction of those non-selection roads, forward step S205 then to and carry out.For example, if current pending instruction is the suggested interface of cancellation step S204, then this step can be operated the time limit and is set to expired immediately, like this, when system arrives execution in step S205, because condition judgment is set up, so system flow can be selected the prompting interface with the cancellation road by further execution in step S206.
In step S211, system is path planning again, after planning is finished, returns step S201.
After having adopted technical scheme of the present invention, navigational system hour also can provide the chance of correcting current location road in the road spacing, thereby compares the existing navigational system of the current location road that can't right the wrong.The present invention has reduced the possibility that traffic hazard takes place, the navigation information accuracy that has improved navigational system.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1, a kind of error correcting method of navigation system is characterized in that, said method comprising the steps of:
A. start the navigation error correction mode;
B. receive the GPS locating information;
C. judge whether navigation object departs from the path of having planned, if navigation object departs from the path of having planned, execution in step d then, otherwise continue execution in step c;
D. obtain near the interior alternative road of one first distance of navigation object, and show that described alternative road is for user's selection.
2, error correcting method of navigation system as claimed in claim 1 is characterized in that, described step a may further comprise the steps:
A1. receive the GPS locating information;
A2. judge whether navigation object is in complicated highway section,, otherwise continue execution in step a2 if navigation object is in then execution in step a3 of complicated highway section;
A3. start the navigation error correction mode.
3, error correcting method of navigation system as claimed in claim 2, it is characterized in that, when on the electronic chart arbitrarily the distance between two road be no more than a second distance, and described navigation object thinks that then described navigation object is to be in complicated highway section when being in wherein on the road.
4, error correcting method of navigation system as claimed in claim 3 is characterized in that, described second distance is 15 meters.
5, error correcting method of navigation system as claimed in claim 1 is characterized in that, when described navigation object more than 10 meters, thinks then that described navigation object departs from the path of having planned apart from the path of having planned.
6, error correcting method of navigation system as claimed in claim 1 is characterized in that, described first distance is 30 meters.
7, error correcting method of navigation system as claimed in claim 6 is characterized in that, the minor increment that described first distance be described navigation object in the distance in some highway sections of composition road.
8, error correcting method of navigation system as claimed in claim 7, it is characterized in that, described navigation object is determined in the following manner to the distance in the highway section of described composition road: the vertical line that is made to described highway section from navigation object, judge whether described intersection point drops on the described highway section, if intersection point drops on the described highway section, then arrive the distance in described highway section as described navigation object with the distance of navigation object and intersection point; If intersection point does not drop on the described highway section, then with navigation object to the distance of described highway section two end nodes the shorter one as the distance of described navigation object to described highway section.
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| CNA2009100846264A CN101576389A (en) | 2009-05-18 | 2009-05-18 | Error correcting method of navigation system |
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| CNA2009100846264A CN101576389A (en) | 2009-05-18 | 2009-05-18 | Error correcting method of navigation system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200450A (en) * | 2010-03-26 | 2011-09-28 | 富港电子（东莞）有限公司 | Navigation component and method thereof |
| CN102589558A (en) * | 2011-01-07 | 2012-07-18 | 北京高德泰信科技有限公司 | Navigation method, navigation terminal and navigation system |
| CN102636175A (en) * | 2011-02-14 | 2012-08-15 | 株式会社电装 | Path guide system |
| CN103185597A (en) * | 2011-12-30 | 2013-07-03 | 上海博泰悦臻电子设备制造有限公司 | Navigation method and navigation apparatus |
| CN105606087A (en) * | 2015-12-23 | 2016-05-25 | 北京百度网讯科技有限公司 | Navigation method and device |
| WO2016078606A1 (en) * | 2014-11-21 | 2016-05-26 | 高德软件有限公司 | Navigation method and apparatus |
| CN102589558B (en) * | 2011-01-07 | 2016-12-14 | 高德软件有限公司 | Air navigation aid, navigation terminal and navigation system |
| CN106767864A (en) * | 2016-12-05 | 2017-05-31 | 深圳市车音网科技有限公司 | Automobile navigation control method and device |
| CN107702726A (en) * | 2017-06-30 | 2018-02-16 | 百度在线网络技术（北京）有限公司 | Air navigation aid, device, equipment and computer-readable recording medium |
| CN112240770A (en) * | 2020-10-15 | 2021-01-19 | 浙江欣奕华智能科技有限公司 | Method, device and terminal for generating robot motion trail |
-
2009
- 2009-05-18 CN CNA2009100846264A patent/CN101576389A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200450A (en) * | 2010-03-26 | 2011-09-28 | 富港电子（东莞）有限公司 | Navigation component and method thereof |
| CN102589558A (en) * | 2011-01-07 | 2012-07-18 | 北京高德泰信科技有限公司 | Navigation method, navigation terminal and navigation system |
| CN102589558B (en) * | 2011-01-07 | 2016-12-14 | 高德软件有限公司 | Air navigation aid, navigation terminal and navigation system |
| CN102636175A (en) * | 2011-02-14 | 2012-08-15 | 株式会社电装 | Path guide system |
| CN102636175B (en) * | 2011-02-14 | 2015-05-20 | 株式会社电装 | Path guide system |
| CN103185597A (en) * | 2011-12-30 | 2013-07-03 | 上海博泰悦臻电子设备制造有限公司 | Navigation method and navigation apparatus |
| WO2016078606A1 (en) * | 2014-11-21 | 2016-05-26 | 高德软件有限公司 | Navigation method and apparatus |
| CN105651275A (en) * | 2014-11-21 | 2016-06-08 | 高德软件有限公司 | Navigation method and device |
| CN105651275B (en) * | 2014-11-21 | 2018-06-19 | 高德软件有限公司 | A kind of air navigation aid and device |
| CN105606087A (en) * | 2015-12-23 | 2016-05-25 | 北京百度网讯科技有限公司 | Navigation method and device |
| CN105606087B (en) * | 2015-12-23 | 2020-01-14 | 北京百度网讯科技有限公司 | Navigation method and device |
| CN106767864A (en) * | 2016-12-05 | 2017-05-31 | 深圳市车音网科技有限公司 | Automobile navigation control method and device |
| CN107702726A (en) * | 2017-06-30 | 2018-02-16 | 百度在线网络技术（北京）有限公司 | Air navigation aid, device, equipment and computer-readable recording medium |
| WO2019000879A1 (en) * | 2017-06-30 | 2019-01-03 | 百度在线网络技术（北京）有限公司 | Navigation method, apparatus, equipment and computer readable storage medium |
| CN112240770A (en) * | 2020-10-15 | 2021-01-19 | 浙江欣奕华智能科技有限公司 | Method, device and terminal for generating robot motion trail |
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