Title:
DEAD-RECKONING NAVIGATION AND POSITIONING METHOD AND SYSTEM FOR OBTAINING LONGITUDE AND LATITUDE OF VEHICLE BY SPEEDOMETER
Document Type and Number:
WIPO Patent Application WO/2016/070723
Kind Code:
A1
Abstract:
A dead-reckoning navigation and positioning method for obtaining the longitude and latitude of a vehicle by a speedometer. The method comprises the steps of: (1) differencing a travelling distance acquired by a speedometer, so as to obtain a travelling speed and a heading angle of a vehicle; (2) reckoning the longitude and latitude of the vehicle according to the travelling speed and the heading angle; and (3) outputting the travelling speed, the heading angle and the longitude and latitude. In this method, the longitude and latitude of a vehicle are obtained only by taking a vehicle-mounted speedometer as a data source, and furthermore, the travelling speed and the heading angle at the current moment serve as the output of a dead-reckoning system rather than only serving as a coordinate of a plane-rectangular coordinate system, thereby realizing the dead-reckoning navigation and positioning system which directly provides the longitude and latitude of the vehicle; and there is no need to use inertial devices such as a gyroscope and an accelerometer, so that the cost of the realized dead-reckoning navigation and positioning system which directly provides the longitude and latitude of the vehicle is relatively low. Also provided is a dead-reckoning navigation and positioning system.
Inventors:
WANG LIYANG (CN)
HE WENTAO (CN)
MA CHENGYAN (CN)
LIN XIAOLONG (CN)
ZHAI KUNPENG (CN)
HU XIAOFENG (CN)
WANG HAO (CN)
HE WENTAO (CN)
MA CHENGYAN (CN)
LIN XIAOLONG (CN)
ZHAI KUNPENG (CN)
HU XIAOFENG (CN)
WANG HAO (CN)
Application Number:
PCT/CN2015/092675
Publication Date:
May 12, 2016
Filing Date:
October 23, 2015
Export Citation:
Assignee:
JIAXING MICROELECTRONICS AND SYSTEM ENGINEERING CT CHINESE ACADEMY OF SCIENCES (CN)
International Classes:
G05D3/00; G01C21/00; G01C22/00; G05D1/02
Foreign References:
| CN104316059A | 2015-01-28 | |||
| JPH09243387A | 1997-09-19 | |||
| CN101576384A | 2009-11-11 | |||
| CN1499324A | 2004-05-26 | |||
| CN202133404U | 2012-02-01 | |||
| US20140288828A1 | 2014-09-25 |
Other References:
LIU, CHUANCAI ET AL.: "Error Analysis of ''Rear'' and ''Front'' Wheel Dual Odometer System of Mobile Robots with Four Tires", ROBOT, vol. 20, no. 2, 31 March 1998 (1998-03-31), pages 143 - 146, ISSN: 1002-0446
Attorney, Agent or Firm:
SUNRAY INTELLECTUAL PROPERTY ATTORNEYS (CN)
上海旭诚知识产权代理有限公司 (CN)
上海旭诚知识产权代理有限公司 (CN)
Download PDF: