19HR1200, Development of ICT Core Technologies for Safe Unmanned Vehicles,
Ahn Jae Young
Abstract
산업용 IoT 시스템에서는 많은 수의 디바이스를 연동하여 하나의 네트워크를 구성한다. 뿐만 아니라, 가정용 소비자 IoT 시스템과는 달리 고정밀 저전력 등 네트워크를 요구하므로 보다 외부 환경에 견고하고 기능의 오류가 없어야 한다. 수많은 디바이스의 연동을 실제 환경에서는 검증하기 어려우므로, 이를 위한 고정밀 에뮬레이터를 개발하였으며 이를 이용한 대규모 디바이스 연동 지원 시뮬레이터를 구현하였다. 시뮬레이터에서는 무선 네트워크 기반 임베디드 시스템 개발에서 빈번히 발생하는 3가지 오류를 자동 검출하는 기능을 지원하여 개발자가 쉽게 자신의 응용을 디버깅할 수 있도록 하였다. 구현 결과, 에뮬레이터는 실제 디바이스 실행 성능보다 14배의 속도 향상이 있었으며, 대규모 시뮬레이터에서는 메모리 사용 오류, 네트워크 무한 반복 오류 및 디바이스 간 실행순서 오류 등을 자동 검출하도록 하였으며, 이를 AMI 서비스 개발에 이용하였다.
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