An anti-interference detection algorithm for parking monitoring systems
International Journal of Intelligent Computing and Cybernetics
ISSN: 1756-378X
Article publication date: 6 September 2019
Issue publication date: 29 October 2019
Abstract
Purpose
Magnetic sensors have recently been proposed for parking occupancy detection. However, there has adjacent interference problem, i.e. the magnetic signal is easy to be interfered by the vehicles which are parking on adjacent spaces. The purpose of this paper is to propose a sensing algorithm to eliminate the adjacent interference.
Design/methodology/approach
The magnetic signals are converted to the pattern representation sequences, and the similarity is calculated using the pattern distance. The detection algorithm includes two levels: local decision and data fusion. In the local decision level, the sampled signals can be divided into three classes: vacant, occupied and uncertain. Then a collaborative decision is used to fusion the signals which belong to the uncertain class for the second level.
Findings
An experiment system included 60 sensor nodes that were deployed on bay parking spaces. Experiment results show that the proposed algorithm has better detection accuracy than existing algorithms.
Originality/value
This paper proposes a data fusion algorithm to eliminate adjacent interference. To balance the energy consumption and detection accuracy, the algorithm includes two levels: local decision and data fusion. In most of cases, the local decision can obtain the accurate detection result. Only the signals that cannot be correctly detected at the local level need data fusion operation.
Keywords
Acknowledgements
This work was supported in part by the National Natural Science Fund, China, under Grant 61872083, in part by the Science and Technology Project of Guang-dong Province under Grant 2016A010101037, Grant 2017A030310659 and Grant 2017KQNCX194, and in part by the Social Science and Technology Development Project of Dongguan City under Grant 20185071401606.
Citation
Dong, A., Zhang, Z. and Chen, J. (2019), "An anti-interference detection algorithm for parking monitoring systems", International Journal of Intelligent Computing and Cybernetics, Vol. 12 No. 4, pp. 481-496. https://doi.org/10.1108/IJICC-04-2019-0034
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited