• 한국정보기술응용학회:학술대회논문집
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• 한국정보기술응용학회 2005년도 6th 2005 International Conference on Computers, Communications and System
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• pp.73-76
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• 2005

The advanced information and communication technology gives vehicles another role of the third digital space, merging a physical space with a virtual space in a ubiquitous society. In the ubiquitous environment, the vehicle becomes a sensor node, which has a computing and communication capability in the digital space of wired and wireless network. An intelligent vehicle information system with a remote control and diagnosis is one of the future vehicle systems that we can expect in the ubiquitous environment. However, for the intelligent vehicle system, many issues such as vehicle mobility, in-vehicle communication, service platform and network convergence should be resolved. In this paper, an in-vehicle gateway is presented for an intelligent vehicle information system to make an access to heterogeneous networks. It gives an access to the server systems on the internet via CDMA-based hierarchical module architecture. Some experiments was made to find out how long it takes to communicate between a vehicle's intelligent information system and an external server in the various environment. The results show that the average response time amounts to 776ms at fixec place, 707ms at rural area and 910ms at urban area.

• 한국콘텐츠학회논문지
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• 제18권12호
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• pp.405-420
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• 2018

지능형 자동차 시장은 초기단계로 소비자들을 위한 관련 기술 및 서비스가 지속적으로 개발되고 있어 잠재 소비자들의 특성을 이해하는 것이 필요하다. 본 연구는 주관성연구방법론을 적용하여 지능형 자동차 잠재 소비자들의 유형을 파악하고 이해하는데 그 목적이 있다. 지능형 자동차의 핵심기술, 기술수용 및 개인 소비가치, 법제도와 정책 및 사회적 인식을 준거의 틀로 하여 총 36개의 Q표본을 구성하였다. 이 후 39명의 P표본을 선정하여 데이터를 수집한 뒤 Q분류와 심층인터뷰를 진행하였다. 분석결과, 지능형 자동차에 대한 잠재 소비자의 유형을 총 4개로 도출하였다. 첫 번째 유형은 지능형 자동차의 자동차 기능을 중요시하는 그룹으로 스마트 자동차(Smart Car) 소비자라고 하였다. 두 번째 유형은 지능형 자동차의 합리적인 경제성을 중요하게 인식하는 그룹으로 합리적(Reasonable) 소비자라 하였다. 세 번째 유형은 지능형 자동차의 안전성을 중요시하는 그룹으로 안전한 자동차(Safety Car) 소비자라 하였다. 네 번째 유형은 지능형 자동차의 IT기능을 중요하게 생각하는 그룹으로 스마트 디바이스(Smart Device) 소비자라 하였다. 응답자들은 공통적으로 지능형 자동차 운전자의 부상을 감소시키는 기능이 지능형 자동차 구매의 핵심 요소라고 대답하였다. 분석결과를 기반으로 초기단계인 지능형 자동차 시장에 대한 시사점을 도출하였다.

• 디지털융복합연구
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• 제12권2호
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• pp.549-554
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• 2014

IT와 융합한 지능형 자동차에 대한 연구가 현재 활발히 진행중이다. 안전한 지능형 자동차 서비스를 위해 다양한 통신 기술이 제공이 되고 있다. 지능형 자동차가 통신기술을 이용한 서비스가 제공되면서 다양한 보안위협 요소가 도출되고 있다. 지능형 자동차에서 보안 인증 솔루션을 위해서는 소유권, 지식, 생체정보를 포함하고 있어야 한다. 본 논문에서는 지능형 자동차의 보안위협 요소를 분석하고 지능형 자동차의 보안 솔루션인 생체정보를 이용한 인증 기법을 제공한다. 기존의 지능형 자동차 인증보안 솔루션보다 높은 보안성을 갖는 구현의 문제점이 해결되도록 사용자 생체인증기법을 제안한다.

• Journal of Mechanical Science and Technology
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• 제15권6호
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• pp.720-726
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• 2001

This paper describes a vehicle driving-load estimation method for application to vehicle Intelligent Cruise Control (ICC). Vehicle driving-load consists of aerodynamic force, rolling resistance, and gravitational force due to road slope and is unknown disturbance in a vehicle dynamic model. The vehicle driving-load has been estimated from engine and wheel speed measurements using a vehicle dynamic model a least square method. The estimated driving-load has been used in the adaptation of throttle/brake control law. The performance of the control law has been investigated via both simulation and vehicle tests. The simulation and test results show that the proposed control law can provide satisfactory vehicle-to-vehicle distance control performance for various driving situations.

• 한국인공지능학회지
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• 제9권2호
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• pp.29-34
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• 2021

In this paper, for efficient parking control, in an Arduino environment, an intelligent parking control prototype was implemented to provide parking control and parking guidance information using HC-SR2O4 and RC522. The main elements of intelligent parking control are vehicle recognition sensors, parking control facilities, and integrated operating software. Whether the vehicle is parked on the parking surface may be confirmed through sensor or intelligent camera image analysis. Parking control equipment products include parking guidance and parking available display devices, vehicle number recognition cameras, and intelligent parking assistance systems. This paper applies and implements ultrasonic sensors and RFID concepts based on Arduino, recognizes registered vehicles, and displays empty spaces. When a vehicle enters a parking space to handle this function, the automatic parking management system distinguishes the registered vehicle from the external vehicle through the RC522 sensor. In addition, after checking whether the parking slot is empty, the HC-SR204 sensor is displayed through the LED so that the driver can visually check it. RFID is designed to check the parking status of the server in real time and provide the driver with optimal route service to the parking slot.

• 한국ITS학회 논문지
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• 제6권2호
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• pp.70-80
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• 2007

차량 간 통신 네트워크 환경에서 차량 간 혹은 차량 대 기지국 간 통신 시 다양한 통신에 방해가 되는 장애 요소가 발생하거나 존재할 수 있다. 다양한 장애 요인들로 인하여 차량의 고장이나 긴급상황이 발생할 경우 정보 전송과정에서 통신 네트워크의 포화상태나 과도한 경쟁으로 인한 패킷의 손실 및 지연이 발생하게 된다. 이러한 결과 인적, 물적 피해와 더불어 지속적인 통신시도로 차량의 전원고갈 문제가 발생할 수 있다. 따라서, 다양한 장애요인이 상존하는 도로 환경에서 종단간에 고속, 안정적일 뿐만 아니라 에너지 효율적인 프로토콜 개발이 요구된다. 본 논문에서는 IEEE 802.15.3 WPAN을 기반으로 차량간 통신 시스템에서 에너지 효율적인 긴급 메세지 전송을 위한 MAC 프로토콜을 제안한다. 시뮬레이션 및 분석을 통하여 본 논문에서 제안하는 방법이 패킷충돌 및 경쟁으로 발생하는 전송지연을 감소시켰으며, 에너지 효율적인 프로토콜임을 확인하였다.

• International Journal of Automotive Technology
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• 제7권1호
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• pp.83-90
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• 2006

The purpose of this paper is to describe the design and implementation of an unmanned ground vehicle, called the TailGator at CIMAR (Center for Intelligent Machines and Robotics) of the University of Florida. The TailGator is a gas powered, four-wheeled vehicle that was designed for the AUVSI Intelligent Ground Vehicle Competition and has been tested in the contest for 2 years. The vehicle control model and design of the sensory systems are described. The competition is comprised of two events called the Autonomous Challenge and the Navigation Challenge: For the autonomous challenge, line following, obstacle avoidance, and detection are required. Line following is accomplished with a camera system. Obstacle avoidance and detection are accomplished with a laser scanner. For the navigation challenge, waypoint following and obstacle detection are required. The waypoint navigation is implemented with a global positioning system. The TailGator has provided an educational test bed for not only the contest requirements but also other studies in developing artificial intelligence algorithms such as adaptive control, creative control, automatic calibration, and internet-base control. The significance of this effort is in helping engineering and technology students understand the transition from theory to practice.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2005년도 추계종합학술대회
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• pp.1023-1026
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• 2005

In the ubiquitous computing environment, an intelligent vehicle is defined as a sensor node with a capability of intelligence and communication in a wire and wireless network space. To make it real, a lot of problems should be addressed in the aspect of vehicle mobility, in-vehicle communication, common service platform and the connection of heterogeneous networks to provide a driver with several intelligent information services beyond the time and space. In this paper, we present an intelligent information system for managing in-vehicle sensor network and a vehicle gateway for connecting the external networks. The in-vehicle sensor network connected with several sensor nodes is used to collect sensor data and control the vehicle based on CAN protocol. Each sensor node is equipped with a reusable modular node architecture, which contains a common CAN stack, a message manager and an event handler. The vehicle gateway makes vehicle control and diagnosis from a remote host possible by connecting the in-vehicle sensor network with an external network. Specifically, it gives an access to the external mobile communication network such as CDMA. Some experiments was made to find out how long it takes to communicate between a vehicle's intelligent information system and an external server in the various environment. The results show that the average response time amounts to 776ms at fixed place, 707ms at rural area and 910ms at urban area.

• 한국자동차공학회논문집
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• 제9권5호
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• pp.115-121
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• 2001

A driving load estimation method for intelligent cruise control(ICC) vehicles has been proposed in this paper. Vehicle driving load is one of the most important factors of perturbations in vehicle control and can affect the control performance critically. The effect of the control with driving load estimation on vehicle-to-vehicle distance control has been presented and investigated via computer simulations and vehicle tests. The results show that vehicle-driving-load-adaptive control can provide an ICC system with a good acceleration tracking performance. In addition, the results show that driving load estimation can compensate not only the variation of driving load but also the modeling errors.

• International Journal of Automotive Technology
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• 제7권3호
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• pp.377-383
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• 2006

This paper presents evaluation and comparisons of manual driving and driving with intelligent cruise control(ICC) systems. An intelligent vehicle cruise control strategy has been designed to achieve natural vehicle behavior of the controlled vehicle that would make human driver feel comfortable and therefore would increase driver acceptance. The evaluation and comparisons of the ICC and manual driving have been conducted using real-world vehicle driving data and an ICC vehicle simulator.