• 한국디자인학회:학술대회논문집
• /
• 한국디자인학회 2005년도 춘계 학술발표대회 논문집
• /
• pp.338-339
• /
• 2005

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 1991년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 22-24 Oct. 1991
• /
• pp.226-231
• /
• 1991

A graphic control language using function block diagram approach is designed and implemented, applicable to real-time control for continuous process automation system. The procedure implementing the control language is composed of three parts, editor, compiler, and executer. The editor generates the control algorithm file, which contains function block information in the text form, by menu-driven method on the color graphic screen. The compiler translates the contents of the control algorithm file to machine codes and their related data. Then, the executer generates a task that makes the machine codes executed at every sampling period in the target processor. The validity of the concept in its design and implementaion is assured by on-line simulation in the multi-function controller designed for continuous process automation.

• 한국정밀공학회지
• /
• 제11권2호
• /
• pp.65-74
• /
• 1994

Backcap is an electric remote control system for the operation of directional flow control valves. This paper presents a new type of basckcap system which is characterized by its simple construction. The backcap is essentially a hydraulic cylinder of which the piston is connected to a spool of hydraulic valve and controlled by input current. An inherent feedback is imposed on its mechanism so that no artificial noe is needed. Characteristics of the backcap is verified by stability analysis, transient motion and steady state positioning for step inputs. Design parameter analyses have been executer by some analytical approaches and computer simulations, which lead to their optimal valves. These results contributed to an effective new backcap system and its design strategy.

• Journal of Computational Design and Engineering
• /
• 제1권4호
• /
• pp.243-255
• /
• 2014

The present study describes the development of control hardware and software for a mobile welding robot. This robot is able to move and perform welding tasks in a double hull structure. The control hardware consists of a main controller and a welding machine controller. Control software consists of four layers. Each layer consists of modules. Suitable combinations of modules enable the control software to perform the required tasks. Control software is developed using C programming under QNX operating system. For the modularizing architecture of control software, we designed control software with four layers: Task Manager, Task Planner, Actions for Task, and Task Executer. The embedded controller and control software was applied to the mobile welding robot for successful execution of the required tasks. For evaluate this imbedded controller and control software, the field tests are conducted, it is confirmed that the developed imbedded controller of mobile welding robot for shipyard is well designed and implemented.

• 한국공간정보시스템학회 논문지
• /
• 제1권2호
• /
• pp.127-135
• /
• 1999

지리 정보에 관련된 많은 시스템이 벡터 데이터만을 다루고 있으나 정보의 종류에 따라 벡터 데이터 뿐 아니라 래스터 데이터를 다루는 것이 필요하다. 본 논문에서는 OMEGA라는 공간 객체 관리 시스템에서 래스터 형태의 공간 정보를 처리하는 래스터 처리기를 설계하고 구현한다. 먼저 공간 객체 관리 시스템의 저장 시스템 안에 저장될 래스터 정보의 데이터 구조를 정의하고, 이를 클래스 라이브러리의 형태로 구현하여 응용 애플리케이션의 작성 시 사용할 수 있도록 하였다. 그리고, 래스터 정보를 추출하기 위한 질의문 작성에 포함되는 질의 연산 및 관련 모듈을 구현하고 이를 공간 객체 관리 시스템의 질의 수행기에 삽입하여 래스터 정보에 대한 질의를 처리할 수 있도록 하였다. 마지막으로, 실험에 대한 결과도 제시한다.