Vehicle Magnetic Signature Compatibility for Inductive Loop Sensor with Various Signal Conditioning Systems

Inductive loop (IL) sensors installed at selected points of road infrastructure can be used for anonymous vehicle tracking in application to efficient traffic control. However, various signal conditioning systems (SCS) cause disparities between vehicles magnetic signature (VMS). The difference in the shape of VMSs makes it difficult to implement vehicle tracking based on already installed IL sensors with various SCS This paper explains reasons of a mismatch between a shape of VMS obtained from different SCS for IL sensor. A new approach is proposed to increase compatibility between VMS from impedance SCS and generator based SCS. A proper electrical model of generator based SCS is used to produce a compatible VMS from an impedance SCS. The proposed method is validated with laboratory measurements.

[1]  R. L. Anderson.  Electromagnetic loop vehicle detectors , 1970 .

[2]  Janusz Gajda,et al.  A vehicle classification based on inductive loop detectors , 2001, IMTC 2001. Proceedings of the 18th IEEE Instrumentation and Measurement Technology Conference. Rediscovering Measurement in the Age of Informatics (Cat. No.01CH 37188).

[3]  Lawrence A. Klein,et al.  Sensor Technologies and Data Requirements for Its , 2001 .

[4]  Stephen G. Ritchie,et al.  Anonymous Vehicle Reidentification Using Heterogeneous Detection Systems , 2007, IEEE Transactions on Intelligent Transportation Systems.

[5]  R. Sroka,et al.  A New Method of Inductive Sensor Impedance Measurement Applied to the Identification of Vehicle Parameters , 2011 .

[6]  Yide Wang,et al.  Re-identification by Inductive Loop Detector: Experimentation on target origin — Destination matrix , 2013, 2013 IEEE Intelligent Vehicles Symposium (IV).

[7]  Tadeusz Zeglen,et al.  Inductive loop for vehicle axle detection from first concepts to the system based on changes in the sensor impedance components , 2015, 2015 20th International Conference on Methods and Models in Automation and Robotics (MMAR).

[8]  Zbigniew Marszałek.  Maxwell-Wien bridge with vector voltmeter system for measurement small and rapid changes in inductive-loop sensor impedance components , 2018, Measurement.