• Journal of the Korean Society for Precision Engineering
• /
• v.19 no.10
• /
• pp.15-22
• /
• 2002

• Transactions of the Korean Society of Machine Tool Engineers
• /
• v.17 no.5
• /
• pp.64-69
• /
• 2008

In recent years, most of the researchers have been working on micro system manufacturing technological environment. With this international trend and one of the key researches in Korea, this paper gives the keynote on manufacturing the micro-scaled part with digital micro factory and its simulation. In order to construct and estimate reconfigurable simulation time, the digital simulation has been performed for the micro factory and for ultra small machines. From simulation result we came to know that micro factory requires less work-in space and processing time to manufacture micro-scaled part with different environment.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.13 no.4
• /
• pp.751-756
• /
• 2018

In smart factories and industrial IoT, all facilities in a factory are monitored over the Internet, thereby facility can reduce the downtime and increase the availiability by preventive maintenance before it breaks down. The abnormal conditions of the major facilities in the plant are caused by abnormal temperature rise, vibration, and variations in noise. Consequently, it is critical to develop a very small smart device that is easily installed in a small space to enable real-time monitoring of the vibration status of the facility. In this study, smart devices were developed for smart factory fault prediction and robustness management using ultra small micro-controllers with WiFi capabilities and MEMS acceleration sensors.

• Journal of the Korean Society for Precision Engineering
• /
• v.19 no.10
• /
• pp.23-30
• /
• 2002

• Transactions of the Korean Society of Machine Tool Engineers
• /
• v.16 no.3
• /
• pp.44-49
• /
• 2007

Recent manufacturing system requires development on new production technology to enable prompt manufacturing of diverse products. Most of the researchers have been working on micro-factory. Especially, focus on manufacturing of micro parts. Present manufacturing system consumes excessive resources in the form of energy and space to manufacture the micro parts. In this study, the micro lens module assembly system was modeled, analyzed with MST(Micro System Technology) Application Module and simulated through UML Language (Unified Modeling Language) with object-oriented logical model analysis method. Digital model of micro-factory was modeled, to execute the new paradigm of digitalization on products, resources and processes of micro-factory.

• Journal of the Korean Society of Manufacturing Technology Engineers
• /
• v.13 no.1
• /
• pp.31-38
• /
• 2004

• Transactions of the Korean Society of Machine Tool Engineers
• /
• v.16 no.2
• /
• pp.78-83
• /
• 2007

In this paper, the digital model of the micro-factory has been established, inspected and evaluated by progress of assembly, manipulation and examination. The new paradigm of the system analysis is realized by digital simulation of the factory. The digital manufacturing system of the micro-factory was simulated through UML(Unified Modeling Language) with the object-oriented logical model analysis method and then the micro lens module assembly system was simulated with MST(Micro System Technology) Application Module.

• Proceedings of the Korean Society of Machine Tool Engineers Conference
• /
• 2005.05a
• /
• pp.453-457
• /
• 2005

Existing manufacturing system has consumed too much energy, space and resource in micro parts manufacturing. To improve this, micro factory system is suggested. But it is difficult to get the high reliability in the assembly, production and inspection of the minute parts because the construction of the micro factory has been started just before. In this study, we will build the digital manufacturing simulation on the micro factory's process and verify the production and assembly process using this simulation.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2006.11a
• /
• pp.31-34
• /
• 2006

최근의 PLC는 Ethernet 통신, Field Bus등 새로운 통신규약에 호환성을 갖고 있으며 점점 빠른 연산 속도의 초소형 PLC로 발전해 나가고 있고 공장 자동화와 FMS(Flexible Manufacturing System)에 따른 PLC의 요구는 과거 중규모 이상의 릴레이 제어반 대체 효과에서 현재 고기능화, 고속화의 추세로 소규모 정작 기계에서 대규모 시스템 설비에 이르기까지 적용되고 있다. 그러나 현재 사용되고 있는 PLC는 각 제조사마다 하드웨어형식은 유사하지만 소프트웨어형식인 제어 명령어들이 다르기 때문에 각각의 PLC마다 호환이 되지 않는다는 문제점을 가지고 있어 이 제어 명령어들의 호환성을 위한 솔루션이 필요하다. 이를 해결하기 위하여 본 논문은 IEC1131-3의 표준 언어를 중심으로 제어할 수 있는 Mo-aPLC라는 모바일 에이전트 기반의 softPLC시스템을 제안하였다. 이 시스템은 모바일 에이전트들이 지적 대리인으로서 IEC1131-3의 표준 언어를 제어시스템 제작자에게 활용되어 질 수 있는 코드인 IL언어로 변환하고 이를 랭귀지 프로그래머가 활용할 수 있는 코드인 표준 C코드로 변환하는 것이다. 이 시스템으로 인해 제어시스템 제작자와 랭귀지 프로그래머들이 활용할 수 있는 코드들이 생성되는 것과 표준 C코드로 변환함으로서 논리적인 디버깅(dubugging)이 용이하다는 것을 알 수 있었다.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.10 no.7
• /
• pp.1208-1213
• /
• 2006

A micro embedded did the task to be simply the sequent at the past. The necessity of an embedded operating system did not exist in the reason. We satisfy the complication of the system and operating system have been desired for the officer of the process. The necessity of the process of real-time processing increased also with fast response time to users, The porting follows and have been composed of an real-time embedded operating system. We can control the control unit with the sensor to be established in the building, An embedded web sever to use the resource of the at least is appering a networking facility of interaction. In this paper, The web sever to be implemented in a purity software. We draw data for the thing to implement overall demo to the remote through Internet and We put the point even though we organized the frame to control this. we have successfully ported linux on an embedded system, which is based on intel StrongARM SA-1110 processor, then written several network modules of ethernet-based network device.