Construction of Traffic Control Vehicle Type Identification System Based on Piezoelectric Sensing and Laser Ranging
Chen Yao, Jiuchun Gu
Journal of Electronic Systems, Vol. 7, No. 1, 2017.
DOI: 
Link: http://www.dline.info/jes/fulltext/v7n1/jesv7n1_1.pdf
Abstract:
This study constructed a vehicle type identification system that based on piezoelectric sensing and laser
ranging, which could automatically identify vehicle types even the vehicles were in high-speed driving state, thus solved an
urging problem of traffic management departments. The vehicle type identification system in this study used laser ranging
sensor to measure the height of vehicles and in the meantime, it used driving speed and the laser frequency of laser ranging
sensor to obtain vehiclesâ€™ length. Vehiclesâ€™ widths were measured by managing the pictures captured by webcam. Based on
the vehicle type identification system that used piezoelectric film traffic sensor, this study additionally installed a laser
ranging sensor and webcam, and used laser ranging sensor to obtain vehiclesâ€™ height and used webcam to capture pictures
to obtain vehiclesâ€™ width, which did not only obtain chassis information of vehicles in real time, but also obtained vehiclesâ€™
length, width and height at the same time. It covered main features of vehicles as well as improved veracity and reliability of
vehicle type identification system.