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이은령(EunRyung Lee),권기구(KeeKoo Kwon),김재영(JaeYoung Kim) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
OSEK OS offers the necessary functionality to support event driven control systems. A structured and modular software implementation based on standardised interfaces and protocols as proposed by OSEK/VDX is a necessary condition for the portability and extendibility, and thus the reusability of existing software. Even though different ECUs may have the same OSEK/VDX interfaces, but can be implemented differently depending on the hardware architecture and the performance required. In this Paper, we describes the implementation of realtime operating system for automotive based on OSEK/VDX for automotive and the way to reduce usage of system resources. Finally, we show that a application using this implemented operating system works on the HILS system.
Qplus-Auto : AUTOSAR 기반 차량 전장용 운영체제
이은령(Eunryung Lee),손정호(Jeongho Son),김재영(Jaeyoung, Kim) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
It is essential to employ a standardized software platform to overcome the increasing complexity of automotive software. AUTOSAR is an open and standardized automotive software architecture, jointly developed by European automobile manufacturers, suppliers and tool developers. It provides Modularity and configurability, Standardized interfaces and Runtime Environment. In this paper, we describes the implementation of Qplus-Auto AUTOSAR Edition, which is the operating system based on AUTOSAR standard for automobiles. We used linked list mechanism to implement ready queue. We can ensure that our implementation can satisfy all requirements of AUTOSAR OS by application.
지능형 농업 서비스를 위한 미기상기반 스마트팜 예측 플랫폼 개발
문애경(Aekyung Moon),이은령(Eunryung Lee),김승한(Seunghan Kim) 한국산업정보학회 2021 한국산업정보학회논문지 Vol.26 No.1
최근 다양한 애플리케이션 도메인을 위한 IoT 솔루션이 개발되고 있으며, 농업분야에서도 IoT 기술을 적용하여 농작물 생산량은 늘리는 반면에 손실은 줄임으로써 농업 생산성을 향상시키기 위한 데이터기반 정밀농업 연구가 진행되고 있다. 이에 본 논문은 미기상 데이터를 수집하여 서리 및 병해충 등 농업예측서비스를 제공하기 위한 스마트팜 플랫폼을 제안하고자 한다. 제안된 플랫폼에서는 실시간으로 수집한 미기상 데이터를 기반으로 서리 및 병해충을 예측하여, 농민들에게 서리 가능성과 병해충 예보 서비스를 제공한다. 실험을 통해 확인한 결과, 미기상기반 예측 플랫폼은 지역기상기반 데이터를 이용한 서리예측보다 더 높은 정밀도(Precision)값을 보임을 알 수 있었다. 정확한 실험을 위하여 시스템 설치 현장에서 실제 관측한 병해충 예찰 데이터를 수집 중에 있다. 본 플랫폼을 활용하여 서리와 병해충 발생 예측정보를 사전에 효과적으로 제공함으로써, 농민들이 작물 피해 및 불필요한 농약 사용을 줄일 수 있도록 하는 정밀농업 서비스를 제공할 수 있을 것으로 기대된다. The emerging smart world based on IoT requires deployment of a large number of diverse sensors to generate data pertaining to different applications. Recent years have witnessed a plethora of IoT solutions beneficial to various application domains, IoT techniques also help boost agricultural productivity by increasing crop yields and reducing losses. This paper presents a predictive IoT smart farm platform for forcast services. We built an online agricultural forecasting service that collects microclimate data from weather stations in real-time. To demonstrate effectiveness of our proposed system, we designed a frost and pest forecasting modes on the microclimate data collected from weather stations, notifies the possibilities of frost, and sends pest forecast messages to farmers using push services so that they can protect crops against damages. It is expected to provide effectively that more precise climate forecasts thus could potentially precision agricultural services to reduce crop damages and unnecessary costs, such as the use of non-essential pesticides.
손정호(Jeongho Son),이은령(Eunryung Lee),김재영(Jaeyoung Kim) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
Recently, the automobile is necessary for human life, which can improve the quality and performance of human life with speed and convenient functionalities. The automobile is equipped with safety functions, infotainment functions, and mobility functions as assistant of human. In this paper, we introduce AUTOSAR standard platform and basic functionality to operate the automobiles. Especially, we focused on timer manipulation for requirements of AUTOSAR OS standard. AUTOSAR platform requires that the software free running timer(SWFRT) concept which can support multiple counters and operation based on cascading structure to extend the HW timer’s range and the number of HW timers. We used linked list mechanism to implement the SWFRT which can ensure that our implementation can satisfy all requirements of AUTOSAR platform.