A Study on Improvement of Parking Guidance System to Low-Power Operation for Green Building

Abstract The parking guidance system can increase driver’s convenience with detailed parking information service, but it continuously consumes electrical energy with large amount of sensors, displays and control modules. With the increase of the demand for green and sustainable building design, it becomes a meaningful issue for parking guidance system to reduce operating power. This paper presents the preliminary design and estimated results of a parking guidance system which is optimized to reduce the power consumption mainly on detectors and displays. The system design is based on commercial wireless parking detectors, wireless-loop-detector and earth-magnetic-detector. We have performed system architecture design, communication network design, parking information service scenario planning, battery life regulation and at last operating power estimation. With the 7 years of battery replace cycle, the estimated result for power consumption of designed system was 0.33W/slot, which is 13% of the traditional system's estimation result. The estimated annual maintain cost was similar to the traditional ultrasonic sensor based system's. The low power operable designed system can be expected to reduce CO2 emission.Key words : Green building, parking guidance system, low power, wireless loop detector, parkdisk †본 연구는 국토해양부 첨단도시개발사업의 연구비지원 (과제번호# 09첨단도시A01)에 의해 수행되었습니다.†본 논문은 2010년 “제17회 부산 ITS세계대회”에서 발표된 논문임. * 주저자 : 모루시스템(주) 대표이사, 아주대학교 건설교통공학과(박사수료) ** 공저자 및 교신저자 : 아주대학교 환경건설교통공학부 교수 *** 공저자 : 아주대학교 ITS 대학원 교수 **** 공저자 : 아주대학교 환경건설교통공학부 조교수***** 공저자 : 교통안전공단 이사장†논문접수일 : 2011년 2월 21일†논문심사일 : 2011년 4월 7일†게재확정일 : 2011년 4월 8일