Hybrid navigation

from Wikipedia, the free encyclopedia

Hybrid navigation uses several hybrid navigation systems to obtain location data for navigation . By bundling the data of the individual subsystems, a better quality of location data can be achieved. An exact and complete knowledge of the location is essential for autonomous driving .

function

With hybrid navigation, different navigation systems are used synchronously. GPS, as a radio system, usually only works outdoors (outside of buildings). Other location data systems must be used to navigate in areas where reception is not possible.

Problems
  • A decision must be made as to which dates are to be preferred. Triple hybrid systems offer a solution for this.
  • Systems that use a GPS component are exposed to the risk of failure, shutdown and reduced accuracy by the operator. Radio systems are also rendered inoperable by electromagnetic pulses .
GPS and inertial sensors

Combination of GPS and inertial navigation (inertial navigation) . The inertial navigation calculates the position as the sum of the motion vectors from the starting point.

GPS and incremental sensors

The navigation system calculates the current position based on the GPS signal and the vehicle speed .

Differential GPS

Differential GPS uses a terrestrial reference transmitter in addition to the satellite data. Because of the dependence on the condition of a free field, another system for determining location data is required.

Use

The accuracy of the position is increased and the susceptibility to errors (due to external influences) is reduced.

Web links

Commons : Differential Global Positioning System  - collection of images, videos and audio files
Commons : Navigation  - collection of images, videos and audio files
Wiktionary: Satellite navigation  - explanations of meanings, word origins, synonyms, translations

literature

  • T. Strang: "Localization method (LR, German Aerospace Center eV in the Helmholtz Association), Aachen, 2008 ISBN 978-3-8322-7492-4 , DNB 991512979
  • Werner Mansfeld: "Satellite positioning and navigation: Basics, mode of operation and application of global satellite navigation systems", Vieweg + Teubner, Wiesbaden, 2010 ISBN 978-3-8348-0611-6 , DNB 1053674112
  • Yilin Zhao: Vehicle Location and Navigation Systems , Artech House, Boston, 1997, ISBN 978-0-89006-861-8
  • Harvey J. Miller, Shih-Lung Shaw: Geographic Information Systems for Transportation: Principles and Applications , Oxford Press, NY 2001, ISBN 0-19-512394-8

Remarks

  1. ↑ GPS (full name NAVSTAR GPS), or another satellite navigation system such as GLONASS , GALILEO , BEIDOU or QZSS
  2. ^ A b Philip Bump: Republican warnings about an electro-magnetic pulse (EMP) . 15th January 2016.
  3. ↑ If you enter a long tunnel with a car, for example, the GPS signal for determining your position is not available.

Individual evidence

  1. ↑ Friedhelm Greis: AUTONOMOUS DRIVING: Who has the best cards? . September 2, 2015. Accessed July 17, 2016.
  2. ↑ a b Bestmann, vonWulfen, Hecker, Kneissl, Kropp: Aviation Applications: Hybrid Navigation Techniques and Safety-of-Life Requirements ( en ) July / August 2010. Archived from the original on July 17, 2016. Info: The archive link was inserted automatically and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved July 17, 2016. @1@ 2Template: Webachiv / IABot / www.insidegnss.com
  3. ^ Leendert Dorst: How Does Inertial Navigation Work? ( en ) January 27, 2011. Accessed July 16, 2016.
  4. ↑ Stanley K. Honey: NAV85 Papers ( en ) April 2, 1985. Archived from the original on March 4, 2016. Information: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved July 17, 2016. @1@ 2Template: Webachiv / IABot / www.honeynav.com
  5. ↑ Brooks Goodhue: What is DGPS or Differential GPS? ( en ) May 9, 2011. Accessed July 16, 2016.