• The Journal of the Korea Contents Association
• /
• v.7 no.11
• /
• pp.1-8
• /
• 2007

The Sensor Network enables many distributed systems to be unmanned and automated by using of diverse sensors as well as wireless communication technologies. One of major enabling technologies for the sensor network is the USN middleware which plays the role of collecting and analyzing of measurements of sensors and controlling of the environments. The paper deals with the fungus cultivating environment based on Sensor Networks. Especially, we focus on the design of USN middleware for the embedded system, and explain how to design software architecture in terms of architectural patterns. In this design process, the improvement of methodology for pattern-oriented architecture design is proposed and the quality attributes for the architecture design is newly classified and suggested for the reference of software architecture design.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.18 no.2
• /
• pp.282-288
• /
• 2014

The DGPS reference station is a national infrastructure generating GPS correctional information and transmitting the signal for Differential GPS. Currently, Korea has applied and operated the software-based DGPS reference station as a standard of the next generation proposed by the USCG in order to improve the hardware-based DGPS reference system. However, software-based DGPS reference station proposed by USCG was changed in software method, only for form. There is no advantage to changing software-based because the most critical part of architecture has not been improved. In this paper, we have designed a new software-based marine DGPS station architecture that a reference station software and a monitor station were integrated. The new marine DGPS station architecture based on software is a more simplified structure than it used to be and can be utilized in the DGPS reference station.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.24 no.3
• /
• pp.435-440
• /
• 2020

The application of the unmanned vehicles in various fields has been attracting attention, and the development of a service utilizing unmanned vehicles has been proceeding. As the service market using the unmanned vehicles rapidly increases, the demand for the development of software for performing the mission with unmanned vehicles is increasing. In particular, as the demand for unmanned vehicle utilization services for public missions such as fire detection, mail delivery, and facility management increases, the importance of developing mission software for unmanned vehicle is increasing. To develop common mission software, architecture design should be made so that unmanned vehicle service provider can easily develop software using reusable libraries or functions through analysis commonly required by various public institutions. In this paper, we discuss the research trends of mission software for public mission unmanned vehicles. In addition, the architecture design of developing formal mission software is proposed. Finally, we propose a data transfer architecture between mission software and data platform.

• Journal of information and communication convergence engineering
• /
• v.7 no.3
• /
• pp.247-252
• /
• 2009

The Internet has made a huge impact on the way we, as humans, communicate. During the last decade a series of new communication mediums have emerged and communication protocols have come and gone. This puts new requirements on the development process and architecture of the communication platforms, operated by communities, in order to proactively ensure support for future communication protocols. Even further, additional requirements are added when the software itself will be maintained by a community. In this paper we explore the world of Open Source Software. We present our suggestions of usable design-principles and our process in developing a sustainable information system.

• 제어로봇시스템학회:학술대회논문집
• /
• 2000.10a
• /
• pp.8-8
• /
• 2000

PICARD (Port-Interface Component Architecture for Real-time system Design) is a software architecture and environment, which is aimed to reduce development time and cost of real-time, control system. With PICARD, a control engineer can construct a control system software by assembling pre-built software components us ing interact ive graphical development environment. PICARD consists of PVM(Picard Virtual Machine) , a component library, and PICE(PIcard Configuration Editor). PVM is a real-time engine of the PICARD system which runs control tasks on a real-time operating system. The component library is composed of components which are called task blocks. PICE is a visual editor which can configure control tasks by creating data-flow diagrams of task blocks or Ladder diagrams for sequential logics. For the communication between PVM on a target system and PICE on a host computer, a simple protocol and tools for stub generation was dove]oped because RPC or CORBA is difficult to be applied for the embedded system. New features such as a byte-code based run time system and a simple and easy MMI builder are also introduced.

• Agricultural and Biosystems Engineering
• /
• v.4 no.2
• /
• pp.50-57
• /
• 2003

This study was conducted to develop software which provides automatic site-specific field data acquisition, data processing, data mapping and management for precision agriculture. The developed software supports acquisition and processing of both digital and analog data streams. The architecture was object-oriented and each component in the architecture was developed as a separate class. In precision agriculture research, the laborious task of manual ground-truth data collection will be avoided using the developed software. In addition, gathering high-density data eliminates the need for interpolation of values for un-sampled areas. This software shows good potential for expansion and compatibility for variable-rate-application (VRA). The FIM (Field Information Management) computer program provides the user with an easy-to-follow process for field information management for precision agriculture.

• Proceedings of the Korean Information Science Society Conference
• /
• 2003.10a
• /
• pp.355-357
• /
• 2003

최근 급속한 발전으로 인해 다양해지고 있는 무선 통신 기술들은 각자의 고유한 주파수, 채널 부호화 기법. 변복조 기법을 쓰는 경우가 많다. 이로 인해, 다양한 무선 통신 기술간의 비호환성 문제가 제기되고 있다. 이러한 문제를 해결하기 위한 기술이 SDR(Software Defined Radio)이다. SDR은 신호 처리(Signal Processing)를 소프트웨어적으로 구현하는 것이다. 이러한 SDR 기술은 하나의 하드웨어를 이용해서 설러 무선 통신 기술들을 이용할 수 있게 한다. 현재 대부분의 SDR의 연구는 재구성 가능한 하드웨어 로직과 코어 프레임워크인 SCA(Software Communication Architecture)로 초점이 맞추어지고 있다 하지만 SDR 시스템의 특성을 고려했을 때, 실시간성(Real-Time)과 유연성(Flexibility), 재구성(Reconfigurability)을 위한 기능을 추가하기 위해 이에 적합한 운영체제의 연구가 필요하다. 본 논문에서는 휴대 기기에서의 SDR 시스템에 대해 간략히 알아보고 이를 위한 운영체제의 요구사항을 설명하여 그에 적합한 운영체제의 구조와 재구성 기법을 설명한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.17 no.5
• /
• pp.17-23
• /
• 2017

A connected car's major factor is connectivity and it can be applied for new concept smart PC hardware and software design method of digital virtual assistance using voice recognition engine at server when infotainment functions are implemented because internet connecting LTE or 5G wireless mobile communication is always is possible. In this paper, a hardware architecture of smart auto-PC and software architecture based on GENIVI platform, and necessary functions are proposed. Also an effective analysis and design method of connected car infotainment system will be presented by showing user requirement analysis using object-oriented method, flowchart and screen design.

• 제어로봇시스템학회:학술대회논문집
• /
• 2002.10a
• /
• pp.78.4-78
• /
• 2002

$\textbullet$ Introduction $\textbullet$ System hardware base $\textbullet$ System software implementation $\textbullet$ Connect robotic systems to Internet $\textbullet$ Conclusions

• Proceedings of the KSR Conference
• /
• 2008.06a
• /
• pp.1962-1967
• /
• 2008

A event recorder system stores a train speed and the related information for train operation in real time. Using those information, we can analysis the train operation and the reason of train accident. Currently the event recorder only manipulate the data related the train operation mechanically and electrically. In this paper we propose the event recorder to record the voice communication between the manager in the control center and train operator. By recording the voice communication in the high speed train, the correctness of analysis of train accident can be increased. The system architecture of the event recorder with voice recording is studied and interface between other equipment is proposed. And the software architecture of new event recorder is developed. We study the method of converting analog voice signal into digital data and compressing method. Also the architecture of memory to store the compressed voice data and regeneration of original analog voice are studied.