CN101561494A - Intelligent positioning correcting system and method - Google Patents
Intelligent positioning correcting system and method Download PDFInfo
- Publication number
- CN101561494A CN101561494A CNA2008100931544A CN200810093154A CN101561494A CN 101561494 A CN101561494 A CN 101561494A CN A2008100931544 A CNA2008100931544 A CN A2008100931544A CN 200810093154 A CN200810093154 A CN 200810093154A CN 101561494 A CN101561494 A CN 101561494A
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- point
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Abstract
The invention relates to an intelligent positioning correcting system and method. The intelligent positioning correcting system comprises an electronic map database module which is used for storing road node data, an address database module which is used for storing address date and coordinate date, a positioning and recording database module which is used for storing history records of GPS positioning, and a positioning correcting processing module which is respectively connected with the positioning and recording database module, the address database module and the electronic map database module and makes a GPS positioning correcting process by using the intelligent positioning correcting method. The invention can correct GPS positioning deviation under the condition of no addition of the cost of car hardware by using an electronic map database, an address database, positioning and recording date, and the like.
Description
Technical field
The present invention relates to a kind of GPS, particularly a kind of intelligent positioning correcting system and method.
Background technology
GPS (Global Positioning System is called for short GPS) is a kind of round-the-clock space reference navigational system of U.S. Department of Defense's research and development, can satisfy to be positioned at the pinpoint Anywhere needs in the whole world.The composition of this system comprises 24 gps satellites in the space; Ground 1 master station, 3 data input stations and 5 monitoring stations and as the GPS receiver of client.On average need wherein 3-4 satellite approximately, with regard to energy residing on earth position of rapid test client and sea level elevation, the satellite number that is received is many more, and the position that decoding is come out is just accurate more.
The GPS signal divides military discipline and civilian two kinds, and the military discipline degree of accuracy is added with error in the civilian signal in 10 meters, about about 100 meters of degree of accuracy.After 2000, U.S. government cancels the added error of civilian signal, and present civilian signal degree of accuracy error is in the 10-25 meter.
Because the lifting of the civilian information accuracy of GPS drives the development of many GPS positioning relative applications and service, for example: transportation information service systems, vehicle monitoring management system, Vehicular navigation system and vehicle safety system etc.Yet because of GPS is subject to influences such as atmospheric concentration variation, buildings refraction or tunnel cover, make the GPS degree of accuracy, above-mentioned application service system effect is had a greatly reduced quality not as expection.
Though differential Global Positioning System (Differential GPS is arranged at present, be called for short DGPS), near the known reference coordinate points utilizing is revised the error of GPS, again the consideration of the coordinate computation of this Real-time Error value adding own, can obtain more accurate value, error is reduced in the 1-5 meter.But brought forward is described, and the suffered external factor influence of GPS still can't be avoided.In addition, still have to cooperate gyroscope to carry out the solution of GPS positioning correcting, but that its shortcoming is a hardware cost is too high.
Summary of the invention
The objective of the invention is to propose a kind of intelligent positioning correcting system and method, under the condition that need not increase car machine hardware cost, can proofread and correct GPS elements of a fix point, the service of GPS positioning relative applications can effectively be operated as traffic information system, vehicle monitoring management system, Vehicular navigation system and vehicle safety system etc., the user is provided higher-quality service.
Reaching foregoing invention purpose intelligent positioning correcting system and method, is to utilize the positioning correcting processing module to connect electronic map database module, address date library module and location record database module respectively, handles in order to carry out the GPS gps correction data.
Its method is for to utilize the road data of electronic chart to carry out staging treating earlier, each bar road axis is several sections according to the right and wrong degree cutting of road, every section end points is called circuit node, attributes such as following each the road node coordinate of record, and be stored in the electronic map database module, use during for positioning correcting processing module calculation correction point.
Moreover, prepare an address date library module, include better address and coordinate contrasting data.
At last, prepare a location record database module, store the GPS elements of a fix, direction, speed and data such as road name or position.
After finishing aforementioned preparation routine, import system into as new GPS locating information, when the positioning correcting processing module utilizes the coordinate points of this GPS locating information and corrected elements of a fix point to be shown on the electronic chart in real time, just can be presented on the road unlikely being offset to outside the road.
The present invention can effectively proofread and correct the GPS deviations, need not increase or change the design of car machine, save huge hardware change or design cost, also can be applied to most transport information application systems fast, has research and development elasticity, and can guarantee that the correction of GPS location to reasonable road scope, improves user satisfaction.
Description of drawings
See also the detailed description and the accompanying drawing thereof of following relevant the present invention's one specific embodiment, can further understand technology contents of the present invention and purpose effect thereof; The accompanying drawing of relevant this embodiment is:
Fig. 1 is the system architecture diagram of intelligent positioning correcting system of the present invention and method;
Fig. 2 is the method flow diagram of this intelligent positioning correcting system and method;
Fig. 3 is for implementing the preceding fleet management system Organization Chart of this intelligent positioning correcting system and method; And
Fig. 4 is the fleet management system Organization Chart after this intelligent positioning correcting system of enforcement and the method.
[major part conventional letter]
1 positioning correcting processing module
2 electronic map database modules
3 address date library modules
4 location record database module
5GPS/GPRS car machine
6 fleet management's application servers
7 databases
8 Tu Tai systems
9 users
10 intelligent positioning correcting systems
Embodiment
The present invention is a kind of intelligent positioning correcting system and method, utilizes electronic chart, address database and position history record, and GPS global positioning satellite deviation is proofreaied and correct.
See also shown in Figure 1ly, be the system architecture diagram of intelligent positioning correcting system of the present invention and method, comprising:
One electronic map database module 2 is in order to store the road node data that road node processing method produces;
One address date library module 3 is in order to store better address and coordinate data;
One location record database module 4 is in order to store the record of GPS position history; And
One positioning correcting processing module 1 connects electronic map database module 2, address date library module 3 and location record database module 4 respectively, utilizes intelligent positioning correction method to carry out GPS navigation data treatment for correcting.
See also shown in Figure 2, method flow diagram for intelligent positioning correcting system of the present invention and method, positioning correcting processing module 1 is utilized the coordinate points A of this GPS locating information in real time, obtains check point A ' by positioning correction method, is stored to location record database module 4 then.Check point A ' guarantees to be positioned at coordinate points on the road in the reasonable error scope, when therefore being shown in this corrected elements of a fix point on the electronic chart, just can be presented on the road unlikely being offset to outside the road.
The present invention can reach GPS global positioning satellite deviation is proofreaied and correct, and its intelligent positioning correction method may further comprise the steps:
(1) the road circuit node is handled;
(2) utilize positioning correction method to draw the check point of GPS elements of a fix point.
Above-mentioned steps (1) is handled the road circuit node, and implementation step is as follows:
(a) electronic map road data is handled with the GIS instrument in advance;
(b) every road adds segmented node according to degree of crook, institute's line segment that is in line and road axis driving fit between two nodes;
(c) write down all road node coordinates,, change and be stored to the electronic map database module together with cartographic informations such as road data such as counties and cities, small towns, road names.
The positioning correction method of above-mentioned steps (2), implementation step is as follows:
(a) read the GPS elements of a fix point A of up-to-date repayment;
(b) search all roads in the distance A coordinate points r meter, wherein r is that maximum error is worth apart from tolerance; If look into no road, then execution in step c; If looked into road, then execution in step d;
(c) search address in the distance A coordinate points r meter, obtain road name, and be check point A ' with the A point from the address date library module;
(d) if search result is single road, then calculate the check point A ' of A point at this road; If the result is a plurality of roads, then calculate the suitableeest check point A ' of A point at these a plurality of roads;
(e) the check point A ' that step (c) or step (d) are tried to achieve is stored to location record database module together with former coordinate points A and road name, finishes correction program.
Wherein, described calculating A point is at the check point A ' of this road, and implementation step is specific as follows:
(a) desire to ask the check point A ' of elements of a fix point A at certain road, establish road contain n node N1, N2 ..., Nn}, wherein N
1And N
nBe end points;
(b) obtain the nearest node N of distance A point earlier
x
(c) if N
xBe end points (x=1 or x=n), then N
xBe check point (A '=N
x);
(d) if 1＜x＜n obtains the A point respectively at L1 (N
X-1N
x) and L2 (N
xN
X+1) the subpoint A of line segment
1And A
2, A wherein
1∈ L
1, A
2∈ L
2
(e) if A
1And A
2All exist, then get distance A and put nearer person (A
1Or A
2) be check point A '; If A
1And A
2Only one of them existence is got this and is had point (A
1Or A
2) be check point A '; If A
1And A
2N is then got in neither existence
xBe check point A '.
Described calculating A point is at the suitableeest check point A ' of these a plurality of roads, and implementation step is specific as follows:
(a) m bar road is arranged near setting position coordinate points A, calculate respectively the A point the check point of m bar road A1 ', A2 ' ..., Am ' };
(b) take out last elements of a fix check point B ' from location record database module, calculate the distance R of A point and B ' point
0, and the direction D of B ' point
B, obtain
V0=(R
0, D
B);
(c) difference calculation correction point A
Y '(the distance R of 1≤y≤m) and B ' point
y, and A
Y 'Direction D
y, draw V={ (R
1, D
1), (R
2, D
2) ..., (R
m, D
m);
(d) each element and the V of the V that step (c) is obtained
0Compare, find out the Vi as a result that meets most, the check point A that it is corresponding
I 'Be the suitableeest check point A ' that is asked.
See also shown in Figure 3ly,, comprise the GPS/GPRS car machine 5, fleet management's application server 6, database 7, Tu Tai system 8 and the client that are installed on vehicle for implementing intelligent positioning correcting system of the present invention and method fleet management system Organization Chart before.Owing to lack effective biased poor correcting scheme, when on electronic chart, watching vehicle, find that vehicle location often is to fall within outside the road scope, but not within road, this phenomenon makes user 9 feel confused, uncertain vehicle is positioned at that road actually, and can't make a strategic decision, and loses the purpose of fleet management system.
See also shown in Figure 4, for implementing intelligent positioning correcting system of the present invention and method fleet management system Organization Chart afterwards, at fleet management's application server 6 end device native systems 10, can be after fleet management's application server 6 receives the GPS locator data of GPS/GPRS car machine 5 repayment of vehicle, see through native system 10 and position offset correction, deposit database 7 then in.When user 9 supervised vehicle through electronic chart, under normal situation rationally, vehicle location must be positioned at the road scope, can not fall within outside the road.So user 9 can know the understanding traveling state of vehicle, and when making a strategic decision, can judge more accurately.
Cumulated volume embodiment is described, and the present invention can be transportation information service systems, vehicle monitoring management system, Vehicular navigation system and vehicle anti-theft safety system etc. a deviations correcting scheme that is simple and easy to usefulness is provided, and the user is provided 9 higher-quality services.
Intelligent positioning correcting system provided by the present invention and method when comparing mutually with other prior art, have more and get the row advantage ready:
1. the present invention can effectively proofread and correct the GPS deviations, need not increase or change the design of car machine, saves huge hardware change or design cost.
2. the present invention can be applied to most transport information application systems fast, has research and development elasticity.
3. the present invention can guarantee that the correction of GPS location to reasonable road scope, improves user satisfaction.
Above-listed detailed description is at the specifying an of possible embodiments of the present invention, and only this embodiment is not in order to limiting claim of the present invention, does not allly break away from the equivalence that skill spirit of the present invention does and implements or change, all should be contained in the claim of this case.
Claims (6)
1. an intelligent positioning correcting system is characterized in that, comprising:
One electronic map database module is in order to store the road node data that road node processing method produces;
One address date library module is in order to store better address and coordinate data;
One location record database module is in order to store the record of GPS position history;
One positioning correcting processing module connects electronic map database module, address date library module and location record database module respectively, utilizes intelligent positioning correction method to carry out GPS navigation data treatment for correcting.
2. an intelligent positioning correction method is characterized in that, may further comprise the steps:
A. the road circuit node is handled;
B. utilize positioning correction method to draw the check point of GPS elements of a fix point.
3. intelligent positioning correction method according to claim 2 is characterized in that: wherein among the step a, the described road circuit node is handled specifically may further comprise the steps:
A. electronic map road data is handled with the GIS instrument in advance;
B. every road adds segmented node according to degree of crook, institute's line segment that is in line and road axis driving fit between two nodes;
C. write down all road node coordinates,, change and be stored to the electronic map database module together with cartographic informations such as road data such as counties and cities, small towns, road names.
4. intelligent positioning correction method according to claim 2 is characterized in that: wherein among the step b, the check point that described positioning correction method draws GPS elements of a fix point specifically may further comprise the steps:
A. read the GPS elements of a fix point A of up-to-date repayment;
B. search all roads in the distance A coordinate points r meter, wherein r is that maximum error is worth apart from tolerance; If look into no road, then execution in step c; If looked into road, then execution in step e;
C. search the address in the distance A coordinate points r meter, obtain road name, and be check point A ' with the A point from the address date library module;
D. if search result is single road, then calculate the check point A ' of A point at this road; If the result is a plurality of roads, then calculate the suitableeest check point A ' of A point at these a plurality of roads;
E. the check point A ' that step c or steps d are tried to achieve is stored to location record database module together with former coordinate points A and road name, finishes correction program.
5. intelligent positioning correction method according to claim 4 is characterized in that: in the steps d, described calculating A point specifically may further comprise the steps at the check point A ' of this road:
A. desire to ask the check point A ' of elements of a fix point A at certain road, establish road contain n node N1, N2 ..., Nn}, wherein N
1And N
nBe end points;
B. obtain the nearest node N of distance A point earlier
x
C. if N
xBe end points (x=1 or x=n), then N
xBe check point (A '=N
x);
D. if 1＜x＜n obtains the A point respectively at L1 (N
X-1N
x) and L2 (N
xN
X+1) the subpoint A of line segment
1And A
2, A wherein
1∈ L
1, A
2∈ L
2
E. obtain A
1And A
2After, if A
1And A
2All exist, then get distance A and put nearer person (A
1Or A
2) be check point A '; If A
1And A
2Only one of them existence is got this and is had point (A
1Or A
2) be check point A '; If A
1And A
2N is then got in neither existence
xBe check point A '.
6. intelligent positioning correction method according to claim 4 is characterized in that: wherein in the steps d, described calculating A point specifically may further comprise the steps at the suitableeest check point A ' of these a plurality of roads:
A. near setting position coordinate points A m bar road is arranged, calculate respectively the A point the check point of m bar road A1 ', A2 ' ..., Am ' };
B. take out last elements of a fix check point B ' from location record database module, calculate the distance R of A point and B ' point
0, and the direction D of B ' point
B, obtain V
0=(R
0, D
B).
C. distinguish check point A in the calculation procedure (a)
Y '(the distance R of 1≤y≤m) and B ' point
y, and A
Y 'Direction D
y, draw V={ (R
1, D
1), (R
2, D
2) ..., (R
m, D
m);
D. each element and the V of the V that step c is obtained
0Compare, find out the Vi as a result that meets most, the check point A that it is corresponding
i' be the suitableeest check point A ' that is asked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100931544A CN101561494A (en) | 2008-04-18 | 2008-04-18 | Intelligent positioning correcting system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100931544A CN101561494A (en) | 2008-04-18 | 2008-04-18 | Intelligent positioning correcting system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101561494A true CN101561494A (en) | 2009-10-21 |
Family
ID=41220376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100931544A Pending CN101561494A (en) | 2008-04-18 | 2008-04-18 | Intelligent positioning correcting system and method |
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| CN (1) | CN101561494A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455428A (en) * | 2010-10-21 | 2012-05-16 | 中国移动通信集团天津有限公司 | Positioning method and device of point facility in transmission pipeline system |
| CN102998686A (en) * | 2011-09-19 | 2013-03-27 | 深圳市赛格导航科技股份有限公司 | Method and system for displaying current reference position of vehicle |
| CN103065119A (en) * | 2011-10-12 | 2013-04-24 | 富士施乐株式会社 | Information processing apparatus, information processing method |
| CN104236575A (en) * | 2014-09-16 | 2014-12-24 | 百度在线网络技术（北京）有限公司 | Travel path recording method and device as well as navigation method and device |
| CN104412064A (en) * | 2012-07-11 | 2015-03-11 | 哈曼国际工业有限公司 | Navigation system and method thereof |
| WO2016082080A1 (en) * | 2014-11-24 | 2016-06-02 | 华为技术有限公司 | Positioning method and apparatus |
| CN109631917A (en) * | 2018-12-11 | 2019-04-16 | 斑马网络技术有限公司 | Processing method, device, electronic equipment and the storage medium of map datum |
| CN109683183A (en) * | 2019-02-22 | 2019-04-26 | 山东天星北斗信息科技有限公司 | A kind of public transit system index point auxiliary revision method and system |
| CN111142138A (en) * | 2018-11-06 | 2020-05-12 | Oppo广东移动通信有限公司 | Electronic device, electronic device ranging method, and computer-readable storage medium |
| CN117688122A (en) * | 2024-02-04 | 2024-03-12 | 民航成都电子技术有限责任公司 | Coordinate conversion method, device, equipment and medium for slice map |
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2008
- 2008-04-18 CN CNA2008100931544A patent/CN101561494A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102455428B (en) * | 2010-10-21 | 2014-09-17 | 中国移动通信集团天津有限公司 | Positioning method and device of point facility in transmission pipeline system |
| CN102455428A (en) * | 2010-10-21 | 2012-05-16 | 中国移动通信集团天津有限公司 | Positioning method and device of point facility in transmission pipeline system |
| CN102998686A (en) * | 2011-09-19 | 2013-03-27 | 深圳市赛格导航科技股份有限公司 | Method and system for displaying current reference position of vehicle |
| CN103065119A (en) * | 2011-10-12 | 2013-04-24 | 富士施乐株式会社 | Information processing apparatus, information processing method |
| CN103065119B (en) * | 2011-10-12 | 2018-03-30 | 富士施乐株式会社 | Message processing device and information processing method |
| US10458796B2 (en) | 2012-07-11 | 2019-10-29 | Harman International Industries, Incorporated | Navigation system and method thereof |
| CN104412064A (en) * | 2012-07-11 | 2015-03-11 | 哈曼国际工业有限公司 | Navigation system and method thereof |
| CN104236575A (en) * | 2014-09-16 | 2014-12-24 | 百度在线网络技术（北京）有限公司 | Travel path recording method and device as well as navigation method and device |
| CN104236575B (en) * | 2014-09-16 | 2018-08-07 | 百度在线网络技术（北京）有限公司 | Trip route recording method and device, air navigation aid and device |
| WO2016082080A1 (en) * | 2014-11-24 | 2016-06-02 | 华为技术有限公司 | Positioning method and apparatus |
| CN111142138A (en) * | 2018-11-06 | 2020-05-12 | Oppo广东移动通信有限公司 | Electronic device, electronic device ranging method, and computer-readable storage medium |
| CN109631917A (en) * | 2018-12-11 | 2019-04-16 | 斑马网络技术有限公司 | Processing method, device, electronic equipment and the storage medium of map datum |
| CN109683183A (en) * | 2019-02-22 | 2019-04-26 | 山东天星北斗信息科技有限公司 | A kind of public transit system index point auxiliary revision method and system |
| CN117688122A (en) * | 2024-02-04 | 2024-03-12 | 民航成都电子技术有限责任公司 | Coordinate conversion method, device, equipment and medium for slice map |
| CN117688122B (en) * | 2024-02-04 | 2024-04-30 | 民航成都电子技术有限责任公司 | Coordinate conversion method, device, equipment and medium for slice map |
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Open date: 20091021 |