Next Article in Journal
Journey-to-Crime Distances of Residential Burglars in China Disentangled: Origin and Destination Effects
Previous Article in Journal
Analyzing the Tagging Quality of the Spanish OpenStreetMap
Open AccessArticle

An INS/Floor-Plan Indoor Localization System Using the Firefly Particle Filter

School of Information Science and Engineering, Xiamen University, Xiamen 361001, China
*
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2018, 7(8), 324; https://doi.org/10.3390/ijgi7080324
Received: 26 June 2018 / Revised: 28 July 2018 / Accepted: 28 July 2018 / Published: 10 August 2018
Location-based services for smartphones are becoming more and more popular. The core of location-based services is how to estimate a user’s location. An INS/floor-plan indoor localization system, using the Firefly Particle Filter (FPF), is proposed to estimate a user’s location. INS includes an attitude angle module, a step length module and a step counting module. In the step length module, we propose a hybrid step length model. The proposed step length algorithm reasonably calculates a user’s step length. Because of sensor deviation, non-orthogonality and the user’s jitter, the main bottleneck for INS is that the error grows over time. To reduce the cumulative error, we design cascade filters including the Kalman Filter (KF) and FPF. To a certain extent, KF reduces velocity error and heading drift. On the other hand, the firefly algorithm is used to solve the particle impoverishment problem. Considering that a user may not cross an obstacle, the proposed particle filter is proposed to improve positioning performance. Results show that the average positioning error in walking experiments is 2.14 m. View Full-Text
Keywords: indoor localization system; INS; floor plan; KF; FPF indoor localization system; INS; floor plan; KF; FPF
Show Figures

Figure 1

MDPI and ACS Style

Chen, J.; Ou, G.; Peng, A.; Zheng, L.; Shi, J. An INS/Floor-Plan Indoor Localization System Using the Firefly Particle Filter. ISPRS Int. J. Geo-Inf. 2018, 7, 324.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

1
Back to TopTop