• Title/Summary/Keyword: Container Network

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Design and Implementation of Port Container Management System Using RFID (RFID를 이용한 항만 컨테이너 관리 시스템 설계 및 구현)

  • Ro, Cheul-Woo;Kim, Kyung-Min
    • The Journal of the Korea Contents Association
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    • v.6 no.2
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    • pp.1-8
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    • 2006
  • In this paper, we address to develop a port container management system using RFID, which is one of the main technologies in ubiquitous. Our system is designed and implemented based on the following technologies: a port gate automation using RFID for container identification, web programming for both communication of the gate and deposit/delivery of a container, and wireless embedded router technology for both port container network platform and cram terminals. The developed system using RFID will be expected to use in main part of the port logistic management system aimed to the intelligent port.

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Ad-hoc Network Routing Protocol in the Yard of Automated Container Terminal (항만 자동화를 위한 장치장내의 Ad-hoc 네트워크 라우팅 프로토콜)

  • Lee, Seung-Ju;Park, Doo-Jin;Choi, Young-Bok
    • The Journal of the Korea Contents Association
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    • v.9 no.8
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    • pp.84-90
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    • 2009
  • In this paper, the RFID-based ad-hoc network is presented for the efficient yard management of the container terminal. The loading and unloading work is performed through the ad-hoc communication between YT and GC, YT and TC within the yard without the control of the central server. That makes the efficient operation of the yard with real task correspondence. Using the location information of the RFID tag, we have proposed the routing protocol which is suitable for the yard environment of the container terminal. The performance evaluation has been carried out through the network simulator and gained an effective results.

Flow Path Design for Automated Transport Systems in Container Terminals Considering Traffic Congestion

  • Singgih, Ivan Kristianto;Hong, Soondo;Kim, Kap Hwan
    • Industrial Engineering and Management Systems
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    • v.15 no.1
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    • pp.19-31
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    • 2016
  • A design method of the network for automated transporters mounted on rails is addressed for automated container terminals. In the network design, the flow directions of some path segments as well as routes of transporters for each flow requirement must be determined, while the total transportation and waiting times are minimized. This study considers, for the design of the network, the waiting times of the transporters during the travel on path segments, intersections, transfer points below the quay crane (QC), and transfer points at the storage yard. An algorithm, which is the combination of a modified Dijkstra's algorithm for finding the shortest time path and a queuing theory for calculating the waiting times during the travel, is proposed. The proposed algorithm can solve the problem in a short time, which can be used in practice. Numerical experiments showed that the proposed algorithm gives solutions better than several simple rules. It was also shown that the proposed algorithm provides satisfactory solutions in a reasonable time with only average 7.22% gap in its travel time from those by a genetic algorithm which needs too long computational time. The performance of the algorithm is tested and analyzed for various parameters.

A Study on Application of Neural Network using Genetic Algorithm in Container Traffic Prediction (컨테이너물동량 예측에 있어 유전알고리즘을 이용한 인공신경망 적용에 관한 연구)

  • Shin, Chang-Hoon;Park, Soo-Nam;Jeong, Dong-Hun;Jeong, Su-Hyun
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2009.10a
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    • pp.187-188
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    • 2009
  • On this study, the artificial neural network, one of the nonlinear forecasting methods, is compared with ARIMA model through performing a forecast of container traffic. The existing studies have been used the rule of thumb in topology design for network which had a great effect on forecasting performance of the artificial neural network. However, this study applied the genetic algorithm, known as the effectively optimal algorithm in the huge and complex sample space, as the alternative.

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A Study on Gantry Control using Neural Network Two Degree of PID Controller (신경회로망 2 자유도 PID 제어기를 이용한 갠트리 크레인제어에 관한 연구)

  • 최성욱;손주한;이진우;이영진;이권순
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2000.11a
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    • pp.159-167
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    • 2000
  • During the operation of crane system in the container yard, it is necessary to control the crane trolley position so that the swing of the hanging container is minimized. Recently an automatic control system with high speed and rapid transportation is required. Therefore, we designed a controller to control the crane system with disturbances and weight change. In this paper, we present the neural network two degree of freedom PID controller to control the swing motion and trolley position. Then we executed the computer simulation to verify the performance of the proposed controller and compared the performance of the neural network PID controller with our proposed controller in terms of the rope swing and the precision of position control. Computer simulation results show that the proposed controller has better performances than neural network PID with disturbances.

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Models for the Empty Container Repositioning and Leasing (공컨테이너 운영 관리를 위한 모형 개발)

  • 하원익;남기찬
    • Journal of the Korean Institute of Navigation
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    • v.23 no.2
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    • pp.11-22
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    • 1999
  • This paper is concerned with the development of a tractable model to assist liner shipping companies in the decision-making of empty container repositioning and leasing. A hybrid methodology is presented which properly accounts for the specific characteristics of empty container management. For this mathematical models are developed based on dynamic network models, covering both land and marine segment. Then a stochastic method is presented to deal with the uncertainty of the future demand and supply. Especially, the concept of opportunity cost has been introduced in order to explain interactions between the variation of the future demand and supply and the stock level at each depot.

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Economic Analysis of Foldable Containers on the Jeju-Mokpo Container Route

  • Shin, Chang-Hoon;Kim, Sung-Nam;Den, Mariia;Wang, Gao-Feng
    • Journal of Navigation and Port Research
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    • v.42 no.5
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    • pp.331-340
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    • 2018
  • Shipping containers promote rapid development of the transport industry, and generate economic and social value. However, problems often occur due to imbalance in dynamics between exports and imports, container relocation, traffic congestion, and general shipping network designs. So, efficient and cost-effective cargo management has become crucial for the Jeju Island - Mokpo container route (JMCR) in South Korea. Dozens of recent studies reveal that collapsible or foldable containers, may become an innovative solution to problematic issues within the shipping industry. The major purpose of this study is to discuss conditions required for successful commercial application of foldable containers, based on a cost-benefit analysis precisely for the JMCR. Findings reveal usage of foldable containers can be cost-effective, if containers make a "FULL<->EMPTY" route. To the contrary, a "FULL<->FULL" route can drastically increase expenditure. However, economic analysis of actual figures for 2010-2015 indicate that benefits for Mokpo - Jeju direction are significant to cover losses on the Jeju - Mokpo line. Seasonal patterns and mixing percentages of foldable and standard containers on the route, may also produce cost-effective solutions. Sensitivity analysis reveals that benefits from using foldable containers, depend mostly on empty container shares in addition to various extra costs.

A Steering Control of the Unmanned Container Transporter (무인 컨테이너 트랜스포터의 조향 제어)

  • Ha, H.K.;Lee, Y.J.;Yoon, Y.J.;Huh, N.;Lee, M.H.
    • Journal of Korean Port Research
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    • v.13 no.2
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    • pp.381-388
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    • 1999
  • To improve the productivity in the harbor, successful development of an UCT(Unmanned Container Transporter) is needed. Well-designed steering and velocity control systems are the key factor for the development of the UCT. In this paper, a research concerning the achievement of the steering control is introduced. To get an information on the guide line that the UCT should track, the vision system is applied. By using neural network, proper steering angle is gotten fast with less influence of the image disturbance. A simulation based on the UCT kinematics is performed with the measured steering angle, and it shows satisfactory results.

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A study on the location recognition method of containers in container terminal utilizing wireless sensor network (무선 센서 네트워크를 이용한 항만 터미널내 컨테이너 위치결정 방식에 관한 연구)

  • Choi, Dae-Woo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.3
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    • pp.725-732
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    • 2011
  • There are some trials to adopt the RFID/USN technologies at container terminals for effective terminal operations. In this paper, we propose a realtime location recognition method for stacked containers under the assumption that each container has a wireless sensor node to measure the RSSI values from neighbor nodes. We develope an RSSI based location algorithm with performance evaluations by RSSI measurement and application program implementation.

A Study on Research Trend in Field of Busan Port by Social Network Analysis (SNA를 활용한 부산항 연구동향 분석에 관한 연구)

  • Kim, Mi-Jin;Park, Sung-Hoon;Kim, Yu-Na;Lee, Hae-Chan;Yeo, Gi-Tae
    • Journal of Digital Convergence
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    • v.19 no.2
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    • pp.117-133
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    • 2021
  • This study aimed to identify its research trends using social network analysis(SNA). The results of the analysis showed that, for degree centrality, Busan Port(0.223) was the keyword that had the highest centrality, followed by DEA(0.060), AHP(0.056), and container terminal and port competitiveness(0.049). Busan Port(0.245) also had the highest betweenness centrality, followed by DEA(0.048), container terminal(0.044), AHP(0.039), and Busan New Port(0.032). The trend analysis inferred that efficiency analysis(DEA), strategy selection, and competition analysis(AHP) were the keywords with a high centrality for Busan Port to gain a competitive edge with global ports. However, research on the Fourth Industrial Revolution, which is emerging as a key issue, was insufficient. In the future, research using social data, such as mass media and social networks, is necessary.