• International Journal of Internet, Broadcasting and Communication
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• 제14권2호
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• pp.79-88
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• 2022

Recently, securing stable supply of fresh food is deemed as one of the important tasks. Accordingly, now the presence of cold chain along with the needs of a comfortable and healthy life is growing as the online market expands and the contactless industry grows, however, cold chain is being studied only in the aspect of ground and sea transportation. And, due to global warming and strengthening global environmental regulations, we believe that it is necessary to convert the existing road-centered logistics system into a railway-centered logistics system, a low-carbon transportation means. Therefore, in this paper we calculated the maximum energy required by the reefer container as a basic research necessary for constructing the low temperature distribution and cold chain based on the reefer container railway, and conducted a study on methods of supplying the reefer container power utilizing 1. tramline, 2. battery, 3. generator. The results of this paper can be utilized as a foundational study for building a cold chain based on a reefer container dedicated to freight trains in the future.

• International journal of advanced smart convergence
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• 제12권3호
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• pp.221-232
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• 2023

Recently, due to the expansion of the logistics industry, demand for logistics automation equipment is increasing. The modern logistics industry is a high-tech industry that combines various technologies. In general, as various technologies are grafted, the complexity of the system increases, and the occurrence rate of defects and failures also increases. As such, it is time for a predictive maintenance model specialized for logistics automation equipment. In this paper, in order to secure the operational reliability of the ICT/Cold-Chain Unmanned Storage, a predictive maintenance system was implemented based on the LSTM model. In this paper, a server for data management, such as collection and monitoring, and an analysis server that notifies the monitoring server through data-based failure and defect analysis are separately distinguished. The predictive maintenance platform presented in this paper works by collecting data and receiving data based on RabbitMQ, loading data in an InMemory method using Redis, and managing snapshot data DB in real time. The predictive maintenance platform can contribute to securing reliability by identifying potential failures and defects that may occur in the operation of the ICT/Cold-Chain Unmanned Storage in the future.

• 한국산업정보학회논문지
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• 제26권5호
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• pp.37-54
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• 2021

In this study, a customized model (CM) for the efficient operation of cold chain logistics considering the hypergeometric distribution is proposed. The CM focuses on the segmentation market of ready-to-eat foods and juices made from fresh materials. Companies should determine the amount of production by predicting consumer preferences and quantity to ensure high-efficiency production. The CM is represented as a mathematical formulation and implemented using the genetic algorithm (GA). Addition, the relative weights of CM are calculated. Further, the calculated weights are applied to the GA. In the numerical experiment, hypergeometric distribution is used to calculate the relative weights between the range of production quantities and the customized amount. Experiment results are the values of relative weights and the comparison results by average values of handling cost, total cost and CPU time. Finally, the significance of this study is summarized and a future research direction is remarked in conclusion.

• 대한안전경영과학회지
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• 제24권3호
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• pp.29-37
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• 2022

The development of technology related to the Fourth Industrial Revolution and the growth of the online market due to pandemic are continuing the growth of the logistics market for product delivery. If it is difficult to deliver the product directly to the customer during delivery, storage and delivery using the unmanned courier box are being carried out. However, existing storage boxes are not actively used due to lack of usability even though they have the advantage of storing goods and delivering non-face-to-face. In addition, existing courier boxes are not prepared for cold chain transportation. The unmanned delivery storage device with ICT cold chain technology should be developed to prepare for the transition to non-face-to-face society, to improve logistics efficiency and meet user's requirements. Also, it is necessary to consider the measures to reduce the safety problems that may occur during the use and maintenance of the automatic system. This study conducted a model-based analysis for the development of unmanned delivery storage devices with ICT cold chain technology, and conducted a study to derive the system development specifications that meet the requirements and secure safety and apply them to the development process.

• 디지털융복합연구
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• 제17권2호
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• pp.101-111
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• 2019

냉동 냉장창고의 집적단지인 '콜드체인 클러스터' 구축이 물류업계의 현안으로 급부상하고 있다. 인천항만공사는 한국가스공사와 협력하여 송도 LNG 인수기지에서 발생하는 냉열 에너지를 이용한 냉동 냉장 클러스터를 구축하기 위한 사업을 진행 중에 있다. 본 연구에서는 CFPR 방법론을 활용하여 냉동 냉장 클러스터 활성화 방안을 제시하는 것을 연구의 목적으로 한다. 분석결과, 상위요인에서는 안정성과 수익성 요인이 0.281로 가장 중요시 되는 요인으로 파악되었다. 세부요인으로는 지속가능한 물동량 확보가 가장 높게 나타났고, 임대료 수준, LNG 냉열 활용기술의 지속 가능성과 일반 냉동 냉장창고와의 경쟁, 시설 중복투자 배제 등의 순으로 중요도가 평가 되었다. 향후 연구에서는 활성화 요인을 활용하여 국내 지역별 냉동냉장클러스터를 평가할 필요가 있다.

• International journal of advanced smart convergence
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• 제10권3호
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• pp.207-213
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• 2021

Informatization and digital transformation across industries are big trends in the world. However, although a few food groups are investing in informatization on a pilot basis, informatization is still delayed in related industries, such as distribution, logistics, etc. Therefore, consumers often are not able to have easy access to detailed information about products. In this paper, to improve these problems, we propose a fresh food logistics solution that adopts Proof of Nonce (PoN) consensus algorithm with Internet of Thing (IoT) technology. The recently developed PoN algorithm dramatically reduces a time for generating a block and is suitable for a platform that collects and services real-time information. We expect to improve their trust in the platform by preventing forgery/falsification of information recorded in real time through this paper.

• 한국산업정보학회논문지
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• 제25권6호
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• pp.159-169
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• 2020

본 연구에서는 중국에서 유통되고 있는 냉장식품 (-1℃ to 8℃)에 대한 콜드체인 물류(Cold chain logistics: CCL) 모델이 개발되었다. CCL 모델은 분배센터 (Distribution center: DC)와 배포대상지점 (Distribution target points: DT)으로 구성되어 있으며, CCL 모델의 목적함수는 모든 유통업체의 총 유통경로를 최소화하는 것이다. 목적함수를 통한 최적결과 도출을 위해 혼합유전알고리즘(Hybrid genetic algorithm: HGA) 접근법을 제안한다. HGA 접근법은 개선된 K-means 방법과 유전알고리즘을 결합하여 구성된다. 사례연구에서는 유통경로와 유통 가능한 거리 기준으로 CCL 모델에 대해 3개의 시나리오를 고려하였으며, 이를 제안된 HGA접근법을 사용하여 해결하였다. 결과분석을 통해 제안된 HGA접근법을 사용할 경우 유통비용이 절감되고, 마일리지가 약 19%, 20%, 16% 정도 감소됨을 확인하였다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2009년도 추계학술대회
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• pp.1067-1070
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• 2009

유통 물류 시스템에서 온도 제어를 비롯한 환경정보의 제어는 매우 중요하다. 제품의 온도정보관리뿐만 아니라 환경정보에 대한 실시간 관리를 위한 Smart Cold Chain Management(SCCM) 시스템에서는 유통/물류시스템에서 사용하는 태그 정보뿐만 아니라 다양한 센서 정보를 실시간으로 통합 관리하여야 한다. 그러나 다양한 종류의 태그 정보를 통합 관리할 뿐만 아니라 온도, 습도, 위치데이터등과 같은 다양한 환경 정보를 통합 관리하기 위해서는 표준화된 코드 체계가 필요하다. 이 논문에서는 SCCM시스템에서 적용될 수 있는 표준 코드 체계를 제시한다.

• 한국항만경제학회지
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• 제35권3호
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• pp.19-40
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• 2019

세계 경제 침체와 수출입 부진으로 인해 항만이 어려움을 겪고 있는 반면 세계 식품콜드체인 시장은 빠르게 성장하고 있다. 수입 측면에 인천항은 최대 소비지역 수도권을 배후권역으로 수도권 관문항의 역할을 담당하는 지리적 이점을 지니고 발전해오고 있다. 수출 측면에 중국 국민들은 지속적으로 증가하게 되어 콜드 체인 식품 소비수요가 꾸준히 증가하고 있다. 인천항은 북중국의 주요 항만들과의 거리는 매우 짧아서 인천항이 대중국 가공식품 물류중심기지로 대중국 신선물류 유통의 거점으로 육성될 가능성이 크다. 콜드체인 물류체계 구축은 인천항 물류의 고부가가치 창출의 유력한 수단이라고 할 수 있다. 본 연구는 선행연구와 인터뷰 등을 토대로 먼저 SWOT분석을 통해 인천항의 강점, 약점, 기회와 위협요인에 의해 인천항의 경쟁발전 전략을 탐색, 제시하였다. 그 다음에 AHP 분석 요인으로 인프라요인, 운영요인, 비용요인, 기술요인 순으로 나타났으며, 인프라요인 중 냉동기술의 가중치가 제일 높게 나타났다. 본 연구에서 처음으로 인천항 콜드체인 활성화 요인에 있어서 인프라요인이 매우 중요하다는 것을 밝혀냈다. 분석결과에 의해 인천항 콜드체인에 대한 정책과 전략적 방향을 제시하였다.

• International Journal of Internet, Broadcasting and Communication
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• 제13권4호
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• pp.103-111
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• 2021

In modern society, digital lifestyles are spreading to minimize contact with people and to receive contactless information. The spread trend has established an unmanned distribution system in which transactions through contactless technologies such as kiosks and chatbots are activated in face-to-face transactions with sellers and consumers. In order to streamline logistics supply worldwide, digital new deal based joint logistics hubs, unmanned courier storage platforms, and fresh logistics based last mile services have been developed into unmanned logistics systems, focusing on the intelligent logistics system automation process. Unmanned courier storage system installed in urban areas and home to daily logistics where volume is concentrated are provided with fresh logistics services through cold chain and receiving freights in contactless environments. Development is also underway to minimize safety accidents caused by courier services, such as managing various information based on the integrated control system. This paper defines the concept of integrated operation for the development of a platform for contactless unmanned courier storage device developed into next-generation logistics system. In addition, we intend to develop systems engineering-based output for deriving safety requirements and specifications by identifying risk sources that may occur in the operational scenario. Therefore, the goal is to establish a foundation for safety and reliability between interfaces of logistics systems to be installed in apartment and subway station environments that want to provide unmanned logistics services to various consumers.