• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.1119-1120
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• 2023

본 논문에서는 LiDAR 만을 이용한 자율주차 시스템을 제안한다. 목표하는 주차공간 양측에 위치한 차량을 감지하여 주차공간의 앞까지 이동한 후 조향장치를 제어하여 주차를 수행하는 알고리즘을 제시하였다. 또한 2023년도 제1회 성균관대학교 자율주행 SW 경진대회를 수행함으로써 해당 알고리즘의 유효성을 검증하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.01a
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• pp.301-302
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• 2019

본 연구에서는 주차장의 CCTV와 사용자의 스마트폰을 연동하여서 주차장의 전체적인 화면을 사용자의 스마트폰의 화면에 보여주며, YOLO 딥러닝 기법을 이용하여 주차된 차량 수를 산출하여서 전체적인 차량 댓수와 주차장소의 복잡도를 계산하여 사용자에게 제공하고자 한다. YOLO 딥러닝 기법은 CNN 기반으로 정확도 높은 객체 추출이 가능하고, 영역을 고려한 R-CNN 알고리즘을 사용하여 객체 분류에 필요한 경계 상자의 수를 줄일 수 있다. 한편, YOLO 딥러닝 기법을 이용하여 주차된 자동차를 인식하고, 주차면에 대한 영역에 대한 학습을 수행하여 주차된 자동차와 빈 주차면을 계산하여 제공한다. 주차장에 설치된 기존의 CCTV를 이용하여 저렴한 비용으로 딥러닝 기법을 CCTV 영상에 적용하여 주차장과 주차면 상황을 고객에게 실시간으로 알려주는 앱을 개발하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11b
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• pp.875-878
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• 2003

최근 무선 인터넷의 발전으로 인하여 통신 환경의 변화가 급속하게 이루어지고 있다. 또한 PDA(Personal Digital Assistant)의 발전 속도가 일반 데스크탑 PC 의 발전 속도를 상회할 정도로 빠르게 성장하고 있으며, 고성능 모바일 CPU 가 사용되면서부터 다양한 주변기기들을 이용하는 형태까지 발전하고 있다. 이러한 무선 인터넷을 활용한 PDA 의 사용으로 보다 빠르고 다양한 정보의 교환을 할 수 있게 되었으며 사용자의 이동성을 보장하는 서비스의 제공이 가능해졌다. 이러한 무선 인터넷을 활용한 서비스는 현재 시행되고 있는 불법 주차 단속시스템에 신속성과 효율성을 부가하는데 적절하게 적용될 수 있다. 본 논문에서는 현재 대중화 되고 있는 PDA 와 무선 인터넷을 이용하여 현장에서 처리되는 불법 주차단속 사항을 주차 관리 중앙센터와 무선으로 연계하여 신속한 견인 및 조치가 이루어 질 수 있는 시스템을 설계 하고자 한다.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.49 no.1
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• pp.31-40
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• 2012

This paper proposes a visual landmark, and presents a parking assistance system using the landmarks. The visual landmark is a feature corresponding to the parking slots, it must be selected considering the parking lot's environment. The parking lot has simple repetitive pattern environment without noticeable features. The previous landmarks are not proper to the parking lot's environment. We propose the visual landmark for this environment. We estimate the vehicle's location using the proposed landmarks, and expect the vehicle's trajectory according to the vehicle's state. The system's inputs are images from the camera fixed to the vehicle. The presented system estimates the vehicle's location using the input images, and assists a driver through displaying the expected vehicle's trajectory from the steering angle. The experimental results showed the proposed landmark's performance and the parking assistance system's performance.

• Proceedings of the Korean Society of Computer Information Conference
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• 2024.01a
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• pp.485-488
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• 2024

본 논문에서는 전기차 시장의 성장 및 수요 증가로 인한 충전 인프라 부족에 대한 문제를 해소하기 위한 방안으로, 센서를 활용한 각 자리별 빈 주차 자리 확인 기능과 전기차 충전 자리의 남은 대기 시간에 대한 정보를 실시간 모니터링 할 수 있는 시스템을 구현하였다. 기존의 LED 표시등의 정보를 웹사이트를 통해 시각적으로 전달하며, 실시간으로 주차 여유 공간과 전기차 충전 자리의 대기 시간을 확인할 수 있게 하였다. 더불어 발레 파킹 서비스와의 융합을 통해 충전 완료 후 차량 이동의 불편함 및 인프라 운영의 효율을 늘리는 방안을 제안해본다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.10 no.3
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• pp.1-8
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• 2011

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.

• Proceedings of the Korea Contents Association Conference
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• 2005.11a
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• pp.500-505
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• 2005

Recently, a parking administration are more difficult because the number of cars is rapidly increasing. In particular, the number of cars, grows rapidly for years, it has arisen that a variety of violation avoids the officers' observation and that a parking place is not enough. In this paper, we design and implement a parking administration system using wireless Internet in order to efficiently control parking and administration. The implemented parking administration system consists of a server and PDA clients. The officers in charge of parking managements can receive the services promptly.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.8 no.3
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• pp.20-26
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• 2009

One way to increase public revenue from public parking spaces is by improving the way parking meters gather data. Improved parking meters have evolved that increase car park revenue as well as efficiency in service and operations. It provides parking meters with the capacity to provide real-time information. This information consist primarily of the status of parking spaces (it indicates which expired metered spaces have parked vehicles.) The technology consists of sensors located at meters that report on their condition (i.e. whether it is working or if it is expired). This information is processed by a microprocessor and then sent via an internal wireless modem to the server. This server then processes the information from all the parking meters and sends it to the public institution in charge of them. This system also provides verification of parking permits. For example, disabled people with special license plates can be automatically approved for parking in designated places.

• Convergence Security Journal
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• v.23 no.5
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• pp.125-133
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• 2023

This paper proposes an AI model that determines parking and non-parking zones based on return authentication photos to address parking issues that may arise in shared electric scooter systems. In this study, we used a pre-trained Segformer_b0 model on ADE20K and fine-tuned it on tactile blocks and electric scooters to extract segmentation maps of objects related to parking and non-parking areas. We also presented a method to perform binary classification of parking and non-parking zones using the Swin model. Finally, after labeling a total of 1,689 images and fine-tuning the SegFomer model, it achieved an mAP of 81.26%, recognizing electric scooters and tactile blocks. The classification model, trained on a total of 2,817 images, achieved an accuracy of 92.11% and an F1-Score of 91.50% for classifying parking and non-parking areas.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.34 no.1
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• pp.235-241
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• 2014

There are many traffic problems in a city such as parking, traffic jam caused by traffic induction facility. Therefore it is essential to demand for traffic demand management to building's owner whose building location causes traffic induction. According to the 90s traffic policy, government collects fee for traffic induction facility through traffic policy management and they encourage the building owner to join reduction of traffic jam program by reduction of traffic induction fee. However there are not many buildings owner joined this program because the program is not ghat beneficial. For example, if government set out parking guidance system (part of parking demanding system) in a city, it will reduce to 20% of traffic induced contributions but t can be used only once a year, so it is not efficient to used even it is valuable for about 10 years. In particular, according to the economic efficiency analysis, evaluate economically as net present value (NPV) to 2,160.44 million won, ratio of benefit/cost (B / C) to 2.44 during 10 years. Therefore this research will find out what is necessary for parking guidance system.