CN1488955A - Apparatus and method for correcting GPS/DGPS positioning deviation and removing screening-obstacles - Google Patents
Apparatus and method for correcting GPS/DGPS positioning deviation and removing screening-obstacles Download PDFInfo
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- CN1488955A CN1488955A CNA021442576A CN02144257A CN1488955A CN 1488955 A CN1488955 A CN 1488955A CN A021442576 A CNA021442576 A CN A021442576A CN 02144257 A CN02144257 A CN 02144257A CN 1488955 A CN1488955 A CN 1488955A
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Abstract
The invented method includes network with needed pinpoint data of landmark being stored, and networked IC card etc. main components in vehicle or other mobile tools. The invention is utilized to correct deviation of location data received by vehicular device through GPS based on principle of differentiate correction location. With being corrected by the invented device, using 'calculus of locating rules' calculates corrective location of path or area the vehicle travels. The method eliminates imperfect signal received caused by shades such as buildings, trees, tunnels and overbridges. Error range of corrected locating information is within 10 cm, and degree of accuracy is raised more than 98%.
Description
Technical field
Especially in regard to a kind of deviations of proofreading and correct GPS GPS and DGPS ground differential corrections positioning principle, and eliminate the bad device of satnav reception that veil caused.
Background technology
The development of GPS GPS is existing two more than ten years so far, and technology is quite ripe at present.There are 27 position location satellites in the whole world approximately around the earth, on average utilizes 3 ~ 4 position location satellites to measure the location point on ground with triangle position-finding method.General degree of accuracy error approximately can be in 10 ~ 25 meters.
Because the positioning signal of GPS is to send with shortwave, thus more be not subjected to weather effect, but be subjected to solar wind, atmospheric concentration variation, the refraction of buildings external form, tunnel, overcover etc. to influence reception.
So intend utilization GPS GPS when purposes such as traffic, often the degree of accuracy because of locator data has a greatly reduced quality the facility function that need utilize global position system inadequately.As develop the used vehicle carried device of the intelligent communications and transportation of ITS and often can't bring into play too greatly as electronic charging, crashproof, function such as prompting in violation of rules and regulations because of the positioning error degree.Simultaneously, places such as many buildingss, trees, tunnel, overline bridge are being arranged, bad or the situation that at all can't reception of reception is also often taking place, causing the dead angle in the reception.
Though nowadays have ground differential corrections positioning principle (DGPS) to assist to revise, degree of accuracy significantly improved the error range of 1 ~ 5 meter of Yue Keda.But use facility for some, it is not enough that the degree of accuracy demand on function is still disliked.
Summary of the invention
For eliminating above-mentioned defective, the objective of the invention is to:
(1) makes the intelligent communications and transportation of ITS, under high-tech technology cheaply is auxiliary, shaped up.
(2) make the action of people, car, three aspects, road in conjunction with safer and convenient.
(3) except communications and transportation, other must use the field of accurate locator data also can use this method easily.
For reaching above-mentioned purpose, the invention provides a kind of device that is used for the correction GPS GPS and the DGPS differential corrections positioning principle satnav deviation of traffic administration, it is characterized in that: described device comprises: store the networking network of the required accurate locator data of fixed position, the networking IC-card of vehicle carried device;
Wherein said networking network is used to store the accurate locator data of the required road landmark point of measuring through accurate instrument, bad in order to proofread and correct GPS GPS and the DGPS differential corrections positioning principle satellite location data that described vehicle carried device receives, to eliminate veil whereby the satnav reception that is caused.
The present invention also provides a kind of method that is used for the correction GPS/DGPS deviations of traffic or others, and described method comprises the following steps:
Measure the accurate locator data of this road starting point earlier with the accurate surveying instrument of GPS, establish a virtual anchor point every suitable distance again, then with " locating rule computing method " with this road all virtually the locator data of punctuate accurately calculate, and store in the computer networking network according to the ordering of longitude and latitude coordinate, eliminate whereby and cover obstacle.
Described method also further comprises the following steps:
Use the accurate locator data in the networking network, proofread and correct the locator data of the received GPS deviation of vehicle carried device; In trimming process, vehicle carried device can according to the elements of a fix numerical value that correction codes is arranged in the immediate virtual road network of gps coordinate that ordering is grasped and oneself is received, be proofreaied and correct according to this networking network numerical value then by in the networking network.
The networking network decides the position of settings " correction codes " according to the speed of a motor vehicle and flow before the strategic road fixed point that needs are proofreaied and correct, the judgement vehicle carried device through this time must be or not proofread and correct; When vehicle is passed through herein, meeting and the comparison of network virtual landmark point, automatically the elements of a fix data of this network landmark point are used as basic fixed position " corrected value ", do one relatively with the elements of a fix that vehicle carried device GPS receives, see through the calculating of computer software programs design, and produce "+/-error ratio % " value; When vehicle was advanced thereafter, the received elements of a fix data of GPS just went multiply by this "+/-error ratio % " value, and the elements of a fix value of gained is proofreaied and correct the more accurate elements of a fix data in back exactly.
Suitable distance before the import and export that veil is arranged is proofreaied and correct the satellite location data that vehicle carried device was received with apparatus of the present invention earlier, and then is utilized " locating rule computing method ", the accurate locator data when calculating vehicle and entering within this veil;
But in the underground parking and tunnel of complete closed, the then necessary device of strengthening the communication transmission signals of installing, as GPRS, 3G communication signal transmitter, the information such as location of sealing the place with transmission are to stopping or the capable control of road center.
" locating rule computing method " of the present invention at first to obtain road correct " start, end " apart from length, perhaps optionally obtain elements of a fix data, then according to the direction of road, the curved width of cloth, every suitable apart from the setting parameter value, see through the reckoning of computer software programs, can list each elements of a fix data of road virtual landmark point soon in regular turn.
In other words, the present invention discloses a kind of deviations that is used to proofread and correct GPS GPS and DGPS ground differential corrections positioning principle, and eliminates the bad device and method of satnav reception that veil caused, and comprising:
Store the primary clusterings such as networking IC-card in networking network, vehicle carried device or other walking machine of the required accurate locator data of landmark point.
This device is used to proofread and correct that vehicle carried device etc. received via GPS, and the deviation of differential corrections positioning principle institute locator data.After proofreading and correct, utilize " locating rule computing method " can calculate the vehicles by this device, can eliminate the bad situation of reception that is caused because of veil such as buildings, trees, tunnel, overline bridge etc. the route or the regional correct location of advancing.Through its degree of accuracy of locating information Yue Keda of overcorrect more than 98%.
Description of drawings
Fig. 1 is vehicle carried device GPS GPS coordinates correction figure; Label 1 expression networking network; Networking IC-card in label 2 expression vehicle carried devices or other walking machine;
Fig. 2 is particular location positioning correcting and the regular compute location figure that veil is arranged.
Embodiment
Be used to proofread and correct the GPS GPS according to of the present invention, and the deviation of DGPS ground differential corrections positioning principle; Through its degree of accuracy of locating information Yue Keda of overcorrect more than 98%.And eliminate and to cover the bad device and method of satnav reception that obstacle causes, comprising: store the networking network 1 of the required accurate locator data of fixed position, the primary clusterings such as networking IC-card 2 in the vehicle carried device.Apparatus of the present invention and method also can be used other walking machine except carrying out with vehicle carried device.
Details are as follows for its mode of connection, How It Works and function:
[mode of connection and How It Works]
(1) elder generation measures the accurate locator data of this road starting point with the accurate surveying instrument of GPS, establish a virtual anchor point every suitable approximately distance again, then with " locating rule computing method " with this road all virtually the locator data of punctuate accurately calculate, and store in the computer networking network 1 according to the ordering of longitude and latitude coordinate.
(2) Fig. 1 shows networking network 1 before the strategic road fixed point that needs are proofreaied and correct, and decides the position of settings " correction codes " according to the speed of a motor vehicle and flow, the judgement vehicle carried device through this time need to proofread and correct; When vehicle is passed through herein, meeting and the comparison of network virtual landmark point, automatically the elements of a fix data of this network landmark point are used as basic fixed position " corrected value ", do one relatively with the elements of a fix that vehicle carried device GPS receives, see through the calculating of computer software programs design, and produce "+/-error ratio % " value; When vehicle was advanced thereafter, the received elements of a fix data of GPS just went multiply by this "+/-error ratio % " value, and the elements of a fix value of gained is proofreaied and correct the more accurate elements of a fix data in back exactly.
(3) if Fig. 2 shows ground such as veil such as tunnel, closed parking lot, tree-covered walkways, the intensive place of high building are being arranged, suitable distance before its import and export, proofread and correct the satellite location data that vehicle carried device was received with apparatus of the present invention earlier, and then utilize " locating rule computing method ", the accurate locator data when calculating vehicle and entering within this closed parking lot, tunnel, tree-covered walkways, park, the compact district, building etc.But in the underground parking and tunnel of complete closed, the then necessary device of strengthening the communication transmission signals of installing, as communication signal transmitters such as GPRS or 3G, the interior information such as location of sealing the place with transmission are to stopping or the capable control of road center.
(4) method of locating rule computing method is as follows:
After the GPS elements of a fix data of vehicle carried device are calibrated, can use " locating rule computing method ", at first to obtain road correct " start, end " apart from length, perhaps optionally obtain elements of a fix data, then according to the direction of road, the curved width of cloth, establish parameter value such as a scaling point at a certain distance, see through the reckoning of computer programming software, can list each coordinate data of road virtual landmark point in regular turn very soon.
[function declaration]
Can reach following function according to device and method of the present invention:
(1) makes the vehicle carried device of " vehicles collision avoidance system ", under the situation that can significantly improve, filled part crashproof function of performance in the degree of accuracy of positioning system.This collision avoidance system must be transmitted in locating information such as the right front car of vehicle angle, left front Che Jiao, the right side in side, the left side side, right back car angle, left back car angle or the like information to the capable control of road center, after the auxiliary correction of apparatus of the present invention, can significantly improve the degree of accuracy of anchor point, make collision avoidance system bring into play crashproof function.
(2) accurate localization and speed information help the keyholed back plate of the magnitude of traffic flow.
(3) accurate localization and speed information help the analysis of not traffic congestion route.
What make (4) that the vehicle carried device of " detect in violation of rules and regulations processing capacity " can be because of locating information accurately brings into play function.When crawling, crossing over double amber lines, unlawful practice such as walking curb etc. as the vehicles, vehicle carried device can be brought into play because of the degree of accuracy of location and remind and the function of punishment.
(5) help vehicle carried device that the driver is carried out the parking service of curb parking lattice, as seeking room, preceding conduction leading service, Car park payment etc.
(6) solve the particular location as: tunnel, closed parking lot, tree-covered walkways, the intensive place of high building, national park, etc. problems such as ground GPS reception is bad.
(7) keyholed back plate such as the discarded object that can strengthen regulatory area topple over arbitrarily, illegal mining sandstone, the vehicle monitoring of river conservation district or the like.
Apparatus of the present invention and method except the application of traffic aspect, also can be used for other purposes of the accurate satellite location data of needs.
Claims (7)
1. device that is used for the correction GPS GPS and the DGPS differential corrections positioning principle satnav deviation of traffic administration, it is characterized in that: described device comprises: store the networking network of the required accurate locator data of fixed position, the networking IC-card of vehicle carried device;
Wherein said networking network is used to store the accurate locator data of the required road landmark point of measuring through accurate instrument, bad in order to proofread and correct GPS GPS and the DGPS differential corrections positioning principle satellite location data that described vehicle carried device receives, to eliminate veil whereby the satnav reception that is caused.
2. device as claimed in claim 1 is characterized in that: wherein vehicle carried device connects a GPS receiver; So the accurate locator data of being stored in the locator data still devious that received and the described networking network can be compared, proofreaied and correct.
3. method that is used for the correction GPS/DGPS deviations of traffic or others, it is characterized in that: described method comprises the following steps:
Measure the accurate locator data of this road starting point earlier with the accurate surveying instrument of GPS, establish a virtual anchor point every suitable distance again, then with " locating rule computing method " with this road all virtually the locator data of punctuate accurately calculate, and store in the computer networking network according to the ordering of longitude and latitude coordinate, eliminate whereby and cover obstacle.
4. method as claimed in claim 3 is characterized in that: wherein said " locating rule computing method " method is as follows:
At first to obtain road correct " start, end " apart from length, perhaps optionally obtain elements of a fix data, then according to the direction of road, the curved width of cloth, every suitable apart from the setting parameter value, see through the reckoning of computer software programs, can list each elements of a fix data of road virtual landmark point soon in regular turn.
5. method as claimed in claim 3 is characterized in that: described method further comprises the following steps:
Use the accurate locator data in the networking network, proofread and correct the locator data of the received GPS deviation of vehicle carried device; In trimming process, vehicle carried device can according to the elements of a fix numerical value that correction codes is arranged in the immediate virtual road network of gps coordinate that ordering is grasped and oneself is received, be proofreaied and correct according to this networking network numerical value then by in the networking network.
6. method as claimed in claim 5 is characterized in that: described method further comprises the following steps:
The networking network decides the position of settings " correction codes " according to the speed of a motor vehicle and flow before the strategic road fixed point that needs are proofreaied and correct, the judgement vehicle carried device through this time must be or not proofread and correct; When vehicle is passed through herein, meeting and the comparison of network virtual landmark point, automatically the elements of a fix data of this network landmark point are used as basic fixed position " corrected value ", do one relatively with the elements of a fix that vehicle carried device GPS receives, see through the calculating of computer software programs design, and produce "+/-error ratio % " value; When vehicle was advanced thereafter, the received elements of a fix data of GPS just went multiply by this "+/-error ratio % " value, and the elements of a fix value of gained is proofreaied and correct the more accurate elements of a fix data in back exactly.
7. method as claimed in claim 3 is characterized in that: described method further comprises the following steps:
Suitable distance before the import and export that veil is arranged is proofreaied and correct the satellite location data that vehicle carried device was received with apparatus of the present invention earlier, and then is utilized " locating rule computing method ", the accurate locator data when calculating vehicle and entering within this veil;
But in the underground parking and tunnel of complete closed, the then necessary device of strengthening the communication transmission signals of installing, as GPRS, 3G communication signal transmitter, the information such as location of sealing the place with transmission are to stopping or the capable control of road center.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021442576A CN100353178C (en) | 2002-10-08 | 2002-10-08 | Apparatus and method for correcting GPS/DGPS positioning deviation and removing screening-obstacles |
| HK04107799A HK1065104A1 (en) | 2002-10-08 | 2004-10-11 | Device and method for correcting the position deviation of gps/dgps ranging signals and bad signal reception |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021442576A CN100353178C (en) | 2002-10-08 | 2002-10-08 | Apparatus and method for correcting GPS/DGPS positioning deviation and removing screening-obstacles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1488955A true CN1488955A (en) | 2004-04-14 |
| CN100353178C CN100353178C (en) | 2007-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021442576A Expired - Fee Related CN100353178C (en) | 2002-10-08 | 2002-10-08 | Apparatus and method for correcting GPS/DGPS positioning deviation and removing screening-obstacles |
Country Status (2)
| Country | Link |
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| CN (1) | CN100353178C (en) |
| HK (1) | HK1065104A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7705775B2 (en) | 2005-12-30 | 2010-04-27 | General Motors Llc | Method of improving a vehicle emergency call network |
| CN101542552B (en) * | 2007-02-02 | 2011-05-18 | 丰田自动车株式会社 | Vehicle-mounted receiver apparatus |
| CN101344397B (en) * | 2008-08-27 | 2011-11-02 | 深圳市凯立德欣软件技术有限公司 | Navigation system and navigation method |
| CN104620130A (en) * | 2012-09-07 | 2015-05-13 | 微软公司 | Estimating and predicting structures proximate to a mobile device |
| CN104838281A (en) * | 2013-01-10 | 2015-08-12 | 英特尔公司 | Positioning and mapping based on virtual landmarks |
| US9429657B2 (en) | 2011-12-14 | 2016-08-30 | Microsoft Technology Licensing, Llc | Power efficient activation of a device movement sensor module |
| US9464903B2 (en) | 2011-07-14 | 2016-10-11 | Microsoft Technology Licensing, Llc | Crowd sourcing based on dead reckoning |
| US9470529B2 (en) | 2011-07-14 | 2016-10-18 | Microsoft Technology Licensing, Llc | Activating and deactivating sensors for dead reckoning |
| US9832749B2 (en) | 2011-06-03 | 2017-11-28 | Microsoft Technology Licensing, Llc | Low accuracy positional data by detecting improbable samples |
| US10184798B2 (en) | 2011-10-28 | 2019-01-22 | Microsoft Technology Licensing, Llc | Multi-stage dead reckoning for crowd sourcing |
| CN112666587A (en) * | 2019-10-16 | 2021-04-16 | 奥迪股份公司 | Method for locating non-motorized road users and traffic device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI554773B (en) * | 2012-10-02 | 2016-10-21 | 矽億消費電子股份有限公司 | Positioning apparatus, system and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2861957B2 (en) * | 1996-07-31 | 1999-02-24 | トヨタ自動車株式会社 | Positioning system, fixed station side device and positioning device used in this system |
| US6101390A (en) * | 1997-01-08 | 2000-08-08 | Us Wireless Corporation | Calibration table generation for wireless location determination |
| US5974356A (en) * | 1997-03-14 | 1999-10-26 | Qualcomm Incorporated | System and method for determining vehicle travel routes and mileage |
-
2002
- 2002-10-08 CN CNB021442576A patent/CN100353178C/en not_active Expired - Fee Related
-
2004
- 2004-10-11 HK HK04107799A patent/HK1065104A1/en not_active IP Right Cessation
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992981B (en) * | 2005-12-30 | 2011-08-03 | 通用汽车有限责任公司 | Method of improving a vehicle emergency call network |
| US7705775B2 (en) | 2005-12-30 | 2010-04-27 | General Motors Llc | Method of improving a vehicle emergency call network |
| CN101542552B (en) * | 2007-02-02 | 2011-05-18 | 丰田自动车株式会社 | Vehicle-mounted receiver apparatus |
| CN101344397B (en) * | 2008-08-27 | 2011-11-02 | 深圳市凯立德欣软件技术有限公司 | Navigation system and navigation method |
| US9832749B2 (en) | 2011-06-03 | 2017-11-28 | Microsoft Technology Licensing, Llc | Low accuracy positional data by detecting improbable samples |
| US9464903B2 (en) | 2011-07-14 | 2016-10-11 | Microsoft Technology Licensing, Llc | Crowd sourcing based on dead reckoning |
| US9470529B2 (en) | 2011-07-14 | 2016-10-18 | Microsoft Technology Licensing, Llc | Activating and deactivating sensors for dead reckoning |
| US10082397B2 (en) | 2011-07-14 | 2018-09-25 | Microsoft Technology Licensing, Llc | Activating and deactivating sensors for dead reckoning |
| US10184798B2 (en) | 2011-10-28 | 2019-01-22 | Microsoft Technology Licensing, Llc | Multi-stage dead reckoning for crowd sourcing |
| US9429657B2 (en) | 2011-12-14 | 2016-08-30 | Microsoft Technology Licensing, Llc | Power efficient activation of a device movement sensor module |
| CN104620130A (en) * | 2012-09-07 | 2015-05-13 | 微软公司 | Estimating and predicting structures proximate to a mobile device |
| US9817125B2 (en) | 2012-09-07 | 2017-11-14 | Microsoft Technology Licensing, Llc | Estimating and predicting structures proximate to a mobile device |
| CN104620130B (en) * | 2012-09-07 | 2020-02-07 | 微软技术许可有限责任公司 | Estimating and predicting structure of proximate mobile devices |
| CN104838281B (en) * | 2013-01-10 | 2018-04-24 | 英特尔公司 | Figure is positioned and built based on virtually target |
| US9677890B2 (en) | 2013-01-10 | 2017-06-13 | Intel Corporation | Positioning and mapping based on virtual landmarks |
| CN104838281A (en) * | 2013-01-10 | 2015-08-12 | 英特尔公司 | Positioning and mapping based on virtual landmarks |
| CN112666587A (en) * | 2019-10-16 | 2021-04-16 | 奥迪股份公司 | Method for locating non-motorized road users and traffic device |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1065104A1 (en) | 2005-02-08 |
| CN100353178C (en) | 2007-12-05 |
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