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Vol. 170, Issue 5, May 2014, pp. 73-79




Study on the Road Traffic Survey System Based on Micro-ferromagnetic Induction Coil Sensor

* Liang Tong, Zhufang Li

Mechanical and Electrical Engineering School, Beijing Information Science and Technology University, Beijing, 100192, China
Tel.: 86-10-82427127, fax: 86-10-82426906

* E-mail: tongliang@bistu.edu.cn


Received: 5 March 2014 /Accepted: 30 April 2014 /Published: 31 May 2014

Digital Sensors and Sensor Sysstems


Abstract: Road traffic information is the basis of road traffic management and control. Due to the special design of the sensor coil and ferromagnetic core, traffic survey system which uses micro ferromagnetic inductive coil vehicle detector, not only has the features of small size, simple installation and little road surface damage, but also has the advantages of output signal strength, simple signal processing circuit and obvious characteristics for output waveform corresponding vehicle feature. Based on the introduction of the sensor working principle, the construction of hardware and signal processing circuit for the traffic survey system is described in detail in the paper. Combined with the characteristics of the sensor output waveform, adaptive nearest neighbor clustering RBF neural network algorithm used to classify the vehicles is proposed and verified by experimental method. The result has a high vehicle classification rate and demonstrates the feasibility of the system.


Keywords: Traffic survey, Micro ferromagnetic inductive coil, Signal processing circuit, Radial Basis Function, Vehicle recognition.


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