• Proceedings of the Korea Information Processing Society Conference
• /
• 2006.05a
• /
• pp.75-78
• /
• 2006

이 논문은 이동 차량의 궤적 정보 관리를 통한 물류 관리 시스템을 제안한다. 물류 시스템은 물류 센터에서 차량과 배송 물품의 위치를 지속적으로 모니터링하고, 이와 연관된 서비스를 제공하는 시스템이다. 따라서 물류 차량의 실시간 위치 정보관리가 필수적이다. 제안된 시스템은 기존의 지리 정보와 더불어 실세계 모바일 환경에서 물류 배송 정보의 효율적 관리 기능을 지원한다. 또한 효과적인 물류 이동 경로 관리 및 검색을 위하여 시공간 색인 기법을 적용하였다. 제안된 시스템은 물류 관리 뿐만 아니라 이와 유사한 서비스를 제공하는 차량 추적 시스템, 위치 기반 서비스 등과 같이 모바일 환경에서 실시간으로 변화하는 관리 대상 객체의 위치 정보를 관리하는 분야에 적용 가능하다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.10 no.10
• /
• pp.2684-2690
• /
• 2009

The existing mobile learning service is the method that provides data packets in real time. It has some problems of much data packet cost and delay to provide the mobile learning service. In this paper, to solve the problems, we suggest to implementation of the mobile learning system of the new method using serial communication.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.37 no.4
• /
• pp.193-201
• /
• 2014

This study attempts to utilize the economic efficiency analysis results focused on the break-even point as an indicator for the decision making of commanders and staff. We suggested a method of determining economic life by utilizing logistics information system and commercial program Minitab with a focus on the equipment's operational environment and performance data, whereas previously the equipment's retirement period was simply determined by the current equipment prices and sustainable period.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2007.11a
• /
• pp.237-240
• /
• 2007

최근 '정보기반 물류망'에서 'u-기반 물류망'으로 발전해 가고 있는 시점에서 'u-기반 물류망'을 위해 다양한 기반 기술들이 요구되고 있다. 본 논문에서는 물류 관리 시스템 구축을 위해 GPS 기반의 물류위치 추적 기법과 센서 Tag를 이용한 물류 배송 효율화 시스템을 설계하고 구현한다. 또한, 물류 배송 효율화를 위해 센서 Tag 네트워크 시스템을 제안하며, 이 센서 Tag 네트워크를 기반으로 수집된 센싱 정보를 이용하여 물류의 위치와 상태, 이동경로 등을 파악함으로서 물류의 배송이 효율적으로 이루어 질 수 있도록 지원한다. 제안된 시스템은 관리자에 의해 유지 보수 될 수 있는 제어 가능한 센서 Tag 네트워크(Controlled Network Layer)와 무제어 이동 센서 Tag 네트워크(Uncontrolled Moving Objects Layer)로 구분하여, 일반적인 센서 네트워크 시스템의 배터리 문제를 보완하고자 한다.

• Journal of the Society of Naval Architects of Korea
• /
• v.59 no.5
• /
• pp.314-322
• /
• 2022

During the shipbuilding process, many blocks are moved between shipyard workshops by block carrying vehicles called a transporter. Because block logistics management is one of the essential factors in enhancing productivity, it is necessary to manage block information with the transporter that moves it. Currently, because a large amount of data per day are collected from sensors attached to blocks and transporters via IoT infrastructure installed in shipyards, automated methods are needed to analyze them. Therefore, in this study, we developed an algorithm that can automatically match the transporter and the working block based on the GPS sensor data. By comparing the distance between the transporter and the blocks calculated from the Haversine formula, the block is found which is moved by the transporter. In this process, since the time of the measured data of moving objects is different, the time standard for calculating the distance must be determined. The developed algorithm was verified using actual data provided by the shipyard, and the correct result was confirmed with the distance based on the moving time of the transporter.

• Journal of Multimedia Information System
• /
• v.7 no.1
• /
• pp.73-86
• /
• 2020

The well-known sentence, "You can't manage what you don't measure" suggests the importance of measurement. The Ministry of National Defense (MND) in Korea is measuring the effort of informatization for various dimensions such as validity, adequacy, and effectiveness using the MND evaluation system to obtain positive and significant effects from informatization. MND views the defense informatization domain as divided into the defense informatization policy, the defense informatization project, and the defense informatization level, which can measure the informatization capability of the MND and the armed forces or organizations. Furthermore, it feels there is some limitation, such as those related to ambiguity and reliability, present in the system. To overcome the limitations in the existing system to evaluate the defense informatization policy, this study proposes a revised evaluation framework for the policy of defense informatization, its indicators, and measurement methods.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2009.05a
• /
• pp.580-583
• /
• 2009

It is very important to minimize the maintenance cost on easy accessibility in the production information system, change of production process line, and system expansion for globalization of logistics and production in the steel and manufacturing. In this paper, we design applying design patterns of object-oriented as well as implement web-based integrated manufacturing management system using JSP for easy accessibility of users and reduction of maintenance cost on business expansion and system integration. In addition, The proposed MES system supports various functionality such as equipment master code management, equipment management, inspection management, repair management, failure management, and statistic management in detail.

• Journal of Advanced Marine Engineering and Technology
• /
• v.39 no.8
• /
• pp.863-869
• /
• 2015

This study analyzed the offshore plant industry and related regulations such as ISO, IEC, and Norsok Standards to develop an integrated network management system (INMS) capable of both on-site and remote management and configuration of IP-based network equipment in offshore plants. The INMS was designed based on actual specifications and POS plans, and a plan of management was verified through an offshore plant engineering company. Various modules such as PAGA interface modules, CCTV, IP-PBX, and HF-radio communication modules were developed for system implementation. Protocol and data design and screen design were followed by framework development and introduction of the automatic satellite communication function.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2008.10a
• /
• pp.832-835
• /
• 2008

An information-oriented basis in today's society has been changing fast, and the desire for connectivity has caused an exponential growth in wireless communication and sensor network. Sensor networks using RFID, in particular, have led this trend due to the increasing exchange of data in Ubiquitous such as the home RF, access control system, U-Healthcare, and Logistics information Systems. Also, the RFID when it applies a technique, is able to raise the stability of shipping as controling the mobile course and an entrance and exit of the crews an well as previously preventing an accident from shipping. In this paper, we designed and implemented personnel control system using UHF-RFID in vessels which shows through host PC reading and writing tag.

• The Journal of Society for e-Business Studies
• /
• v.21 no.4
• /
• pp.55-67
• /
• 2016

Global courier companies have been devoting to get more customers and profits with different service because of the worse profits from price competition. So, the effort of improving satisfaction of customers through improving courier service qualities is more important than any other time. However, the previous way to measure courier service has limitation that costs lots of time and money from off-line survey. This limitation could be overcome with less effort and costs if utilizing on-line social big data analysis and it is so helpful to improve competitiveness of courier companies. Therefore, I have collected comments from domestic and international courier companies from big data on social network service, analyzed the satisfaction of customers by R and verified the result by comparing with American Customer Satisfaction Index (ACSI) and Korea National Customer Index (NCSI) in this research. I found out the result depicts clear correlation between SNS analysis and customer satisfaction. This study can be the foundation to predict customer satisfaction easily by utilizing real time SNS information.