LASER DETECTION DEVICE USING LINE BEAM, AND VEHICLE INFORMATION RECOGNITION METHOD USING SAME

WIPO Patent Application WO/2017/043937

A1

One embodiment of the present invention relates to a laser detection device, used for the detection of a vehicle in an intelligent transportation system, the device comprising: a light source unit for generating a laser beam having a short pulse; a transmitter optical system for converting the laser beam into a line beam having a line form; and a receiver optical system for receiving a reflected beam of the line beam, which is irradiated at the vehicle, backscattered, reflected and returned therefrom, and for calculating a distance value by using a reception time difference between the laser beam and the reflected beam, wherein the transmitter optical system includes a first lens and a second lens, aligned successively, to which the laser beam passing from the light source unit is incident, and adjusts a distance between the light source unit and the first lens so as to extend or reduce the length of the horizontal axis of the line beam, and thus allow the same to match the width of a road to be measured. Therefore, the current traffic situation can be checked in real-time by accurately checking, regardless of the size of the road, whether the vehicles, passing the laser beam irradiated from the laser detection device, have passed.

PARK KYI HWAN (KR)
HWANG SUNG UI (KR)
JANG JUN HWAN (KR)
WON BUM SIK (KR)

PCT/KR2016/010217

March 16, 2017

September 09, 2016

Click for automatic bibliography generation  

GWANGJU INST SCIENCE & TECH (KR)

G01S7/481; G01S17/04; G01S17/10; G08G1/04; G08G1/054; H01S3/00

KR100338121B1	2002-05-24
JP2010139431A	2010-06-24
KR20130068258A	2013-06-26
KR20020065659A	2002-08-14
KR20140011810A	2014-01-29

KIM, Ki Moon (KR)

View/Download PDF      PDF Help

Previous Patent: METHOD FOR MEASURING ANGLES BETWEEN DISPLAYS AND ELECTRONIC DEVICE USING THE SAME

Next Patent: ANTIFOULING PAINT FOR IMMERSED STRUCTURE AND PAINTING METHOD USING SAME