Improved Positioning of City Buses
(2014) FMS820 20141Mathematical Statistics
- Abstract (Swedish)
- In order to build an efficient transportation system of the future, public
transport needs to be an attractive alternative offering a high quality travel
experience. Future digital information systems for public buses will enrich
the travelers experience by delivering relevant content - accurately on the
right time and place. In this master thesis, design and implementation of
an improved bus positioning system is presented with the objective to meet
these demands. The system is based on a bank of particle filters used to
track a non-linear, non Gaussian state model of the bus. The available input
signals are GPS, wheel speed, and door opening sensors. The system utilizes
a GIS database containing the street network and a local... (More) - In order to build an efficient transportation system of the future, public
transport needs to be an attractive alternative offering a high quality travel
experience. Future digital information systems for public buses will enrich
the travelers experience by delivering relevant content - accurately on the
right time and place. In this master thesis, design and implementation of
an improved bus positioning system is presented with the objective to meet
these demands. The system is based on a bank of particle filters used to
track a non-linear, non Gaussian state model of the bus. The available input
signals are GPS, wheel speed, and door opening sensors. The system utilizes
a GIS database containing the street network and a local traffic system
database with spatial and temporal information of the buses. The implementation
is done in python, powered by the GeoDjango framework and the
PostgreSQL database, and has been tested in buses containing a commercial
digital information system. The system improves the positioning during
GPS failure and increases reliability by combining all disposable information
and presenting an accurate and redundant estimate. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/4305400
- author
- Bengtsson, Nils
- supervisor
- organization
- course
- FMS820 20141
- year
- 2014
- type
- H2 - Master's Degree (Two Years)
- subject
- language
- English
- id
- 4305400
- date added to LUP
- 2014-02-12 15:19:17
- date last changed
- 2014-02-12 15:19:17
@misc{4305400, abstract = {{In order to build an efficient transportation system of the future, public transport needs to be an attractive alternative offering a high quality travel experience. Future digital information systems for public buses will enrich the travelers experience by delivering relevant content - accurately on the right time and place. In this master thesis, design and implementation of an improved bus positioning system is presented with the objective to meet these demands. The system is based on a bank of particle filters used to track a non-linear, non Gaussian state model of the bus. The available input signals are GPS, wheel speed, and door opening sensors. The system utilizes a GIS database containing the street network and a local traffic system database with spatial and temporal information of the buses. The implementation is done in python, powered by the GeoDjango framework and the PostgreSQL database, and has been tested in buses containing a commercial digital information system. The system improves the positioning during GPS failure and increases reliability by combining all disposable information and presenting an accurate and redundant estimate.}}, author = {{Bengtsson, Nils}}, language = {{eng}}, note = {{Student Paper}}, title = {{Improved Positioning of City Buses}}, year = {{2014}}, }