• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.95-97
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• 2012

최근 정보기술의 발달과 함께 컨테이너화물 안전수송 분야의 정보시스템의 역할에서도 많은 변화가 나타나고 있다. 이러한 변화에 따라 본 연구에서는 현재 개발 진행중인 '컨테이너 화물 안전수송을 위한 관제 및 운용기술'시스템이 사용자 중심의 컨테이너화물 안전수송 정보제공 시스템이 될 수 있도록 수정, 보완을 위한 기초자료를 제공하고자 시도되었다. 본 연구는 시스템 사용자가 시스템 사용과정에서 느끼는 서비스 품질과 만족도 신뢰 및 구매의사 결정 등에 대해 알아보았으며, 제공되는 정보들에 있어서 중요도 순위를 알아보았으며, 추가적으로 실용화하기 위해 필요한 사항들이 어떠한 것들인지에 대하여 알아보았다.

• Journal of Korea Society of Industrial Information Systems
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• v.14 no.2
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• pp.23-31
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• 2009

Since 9.11 terrorist attacks against the USA, the new paradigm for "supply chain security" has been established. And at the same time a lot of researches are being made on supply chain security by many foreign companies or research institutes. However, domestically the terms "supply chain security" themselves are not yet familiar, and the paradigm of security are not being used in the logistics, while little researches are being made on them But recently along with development of "ConTracer," a supply chain security technology, which is to be used as the equipment for container cargo transportation safety based on RF1D technology, related researches have begun to be activated. The key issues for the development of equipment for container transportation safety are to obtain both a high recognition rate and enough recognition distance. To this end, this study has tested the ConTracer (433 MHz type and 2.4 GHz type) by using Taguchi Method. According to our test results, in the case of 433 MHz type, it is a little more effective that the reader faces to the front-right side, and in the case of 2.4 GHz, reader direction does not make difference in the view of sensitivity. The test also has proved that it is better that antenna location, as expected, is to be installed on the outside for both types alike.

• Journal of Korean Society of Transportation
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• v.22 no.2 s.73
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• pp.177-193
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• 2004

최근의 화물자동차파업사태 등으로 우리나라 물류체계의 경쟁력제고를 위한 여러 가지 논의가 진행되고 있다. 그 중에서도 환경친화적이며, 사회적 비용이 저렴한 철도화물의 수송분담율을 높여야 한다는 의견이 많이 나오고 있다. 우리나라 물류체계의 근본적인 문제점은 도로운송량의 증가보다 트럭의 공급과잉으로 트럭운송사업자의 수익은 매우 낮고, 철도, 해운 등 대량운송수단의 분담율이 낮아 전체적인 수송효율성이 낮은 것을 들 수 있다. 이러한 문제점의 해결은 트럭의 과잉공급을 억제하고, 제조업 물류비 중 46.5%를 점하고 있는 운송비용을 절감하는 것이 핵심적인 방안이라고 하겠다. 이에 본 논문에서는 철도화물의 활성화와 우리나라의 철도구조개혁의 성공적인 추진을 위해서 우리와 지형조건이 비슷하고, 1987년에 철도민영화를 시행하여 현재 16년이 경과한 일본철도화물의 현황을 분석하여, 현재까지의 문제점을 밝히고 또한 우리나라의 철도화물수송정책에 시사하는 바를 정리해 보았다. 1987년 민영화 이후 일본철도화물수송현황을 보면 영업거리, 화차대수를 포함한 수송능력 감소로 수송량은 감소하였으나, 화물수송의 장거리와 추세와 컨테이너수송량의 증가, 인력감축으로 영업성적은 전반적으로 향상되고 있다. 문제점으로는 경영면에서는 낮은 생산성 그리고 노후장비 등으로 인한 높은 설비투자비지출, 선로사용료 등의 부담 등이 지적되었다. 운영상에서는 현재 선로를 소유하지 못하여 네트워크가 부족하여 자유로운 열차편성이 어렵고, 포워더 기능이 없어 현재 전체물량의 85%를 점하는 소운송구간에서 다른 운송주체간의 수송으로 일관수송서비스에 어려움이 있으며, 직접적인 영업을 하지 못하여, 새로운 수요창출에 어려움이 있다. 이러한 문제점의 해결책으로는 먼저 정부의 인프라에 명확한 책임분담과 이에 따른 지원이 필요하다. 이와 같은 철도화물활성화의 정책수립필요성의 배경에는 철도화물수송이 효율성과 환경친화성, 높은 안전성 등 사회적 비용을 감소시키는 장점을 가지고 때문이다. 철도화물운송회사도 현재의 수송기능과 함께 포워더로서의 기능을 가져야 할 것이며, 운임인하노력과 속도향상을 위한 노력을 계속하여야 할 것이다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.8
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• pp.1642-1646
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• 2011

In this paper, A Design of 2.45GHz and GPS antenna Integrated Board using Container security Device(ConTracer) for container cargo transportation is proposed and experimentally evaluate. Integrated antenna board include 2.4GHz chip and Ceramic GPS antenna is also consider the impact of RF interference based on simulation for applied to steel container. After a careful comparison and analysis a part of the container door for its best performance, We conduct tests to characterize. The proposed integrated antenna board is suitable for container cargo transportation application in steel container field.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.831-834
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• 2011

This paper is intended as performance verification of efficient container door Open/Closed detection mechanism for Container Security Device(ConTracer) to container cargo transportation. Container door Open/Closed detection mechanism using Reed sensor is important to satisfies the US Department of homeland security customs and border protections requirements to many types of container door. Also, Verify that the container door is configured correctly and that you can check the illegal opening. In this article, Performance valuation of this Contacer on reed sensor has been verified through field test for each other 30 containers. Once the improvement has been made, we are suggest that propose skills will meet the highest standards for container security safety.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.10
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• pp.2203-2208
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• 2011

In this paper, we describe application service development for secure land and marine transport based on CSD (Conveyance Security Device) systems. Based on CSD systems, we present application service and security service according to relevant standards as well as test procedure of developed services. Exploiting temperature, moisture, impact sensors, state monitoring function of container freight was developed to prevent disaster during transportation in addition to security function with CSD. For confidentiality of messages exchanged among application service entity and CSD systems, Encryption and decryption functions going by RC5 and AES-128 algorithms were implemented at desktop PC and 8 bit CPU environments, respectively. Measuring the elapsed time during encryption and decryption shows that two algorithms are allowable for the application service.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.4
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• pp.1032-1040
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• 2010

This paper describes implementation of electonic seal (E-Seal) of a container based on ISO 18185 standard and development of monitoring systems checking E-Seal device and cargo states in the container for secure transportation from departure to destination. For lack of definition on confidentiality support in ISO 18185-4 standard, it is vulnerable to security attack such as sniffing. To cope with this, we developed encryption/decryption functions implementing RC5 and AES-128 standards and compared their performance. Experimental results showed that RC5 outperformed AES-128 in terms of time delay. In addition, RC5 had an advantage under the condition of large sized messages as well as CPUs with low performance. However, the portion of encryption/decryption processing time was less than 1 percent of response time including communication delay between E-Seal tags and readers. Hence, the performance difference between RC5 and AES-128 standards was trivial, which revealed that both specifications were allowable in developed systems.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.7
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• pp.1613-1620
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• 2011

CSD is IEEE Stan없rd 802.15.4b based Container Security Device which is proposed by the U.S Department of Home Security. It is mounted inside the container to sense opening of the container door. ConTracer is the CSD which is developed in this research whose major features are sensing door opening status as well as history inquiring on internal environment and shock to the container by mounting the temperature/humidity/shock sensors. Moreover, its RFID frequency bandwidth uses 2.4GHz 10 correspond actively to the radio regulations used by different countries. This. paper introduces the development trend of CSD, compares the ConTracer which is developed thru this research and other company's CSD, and introduces CSD System which is designed and established using ConTracer. Finally, the implemented CSD System is verified by applying the demonstration service to container distribution between Korea and Japan.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.502-505
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• 2011

In this paper, A Design of 2.45GHz and GPS antenna Integrated Board using Container security Device(ConTracer) for container cargo transportation is proposed and experimentally evaluate. Integrated antenna board include 2.4GHz chip and Ceramic GPS antenna is also consider the impact of RF interference based on simulation for applied to steel container. After a careful comparison and analysis a part of the container door for its best performance, We conduct tests to characterize. The proposed integrated antenna board is suitable for container cargo transportation application in steel container field.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.7
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• pp.1544-1550
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• 2013

In recent years, Container Security Device(CSD) using GPS & GLONASS to improve logistics efficiency are being extensively researched. The purpose of this paper is to examine the performance development antenna usable cargo container security transport. Antenna developed by study were optimized to match logistics environment apply to GPS/GLONASS dual frequency for monitering system. The measure of antenna have confirmation about frequency characteristics each 1575.42MHz, 1602MHz and VSWR is 2:1 measured in return loss -9.54dB. Reliability of this antenna has been verified about GPS/GLONASS through test-operation between the south korea and Russia.