Journal Search Engine
The Journal of The Korea Institute of Intelligent Transport Systems Vol.2 No.1 pp.25-40
신호교차로의 정지선 검지기를 위한 수동형 적외선 검지기 알고리즘 개발(점유시간을 중심으로)
Development of a Passive Infrared Detector algorithm for the Stop-line detector of a Signalized Intersection
Abstract
The purpose of this thesis is development of detection algorithm for stop-line detector. Detail detection area is set in basing detection area(1.8*4.0m) and traffic information(volume, occupancy, nonoccupancy) is collected by passive infrared detector at designing detection area. The basis detection area(1.8*4.0m) is named existing PIR and detection area applied on development algorithm is named proposal PIR. The proposal PIR is collected data such volume, occupancy, nonoccupancy, speed and lane change, but this thesis is limited to evaluate for volume, occupancy and nonoccupancy The procedure and each step of being developed algorithm is described in the next (1) The detection area of proposal PIR is made up of 2 of 1.8*0.6m size(the detection area is named 1 and 3) and 1 of 1.8*1.78m size(the detection area is named 2) (2) The image detection area is set on monitor to analyze outdoor photographing data then video frame analysis has been done by analyzer. (3) The occupancy, nonoccupancy and speed data of vehicle have been collected with the detection area 1 and 3 and lane change has been collected with combination of detection area 1, 2 and 3 The MAD and MAPE have been utilized to being compared with volume, occupancy and nonoccupancy for the field application and evaluation of a algorithm As the result, the proposal PIR data have been identified superior to the existing PIR data and the effect has been improved its information(volume, occupancy and nonoccupancy)
