• 전자통신동향분석
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• 제22권2호통권104호
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• pp.92-101
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• 2007

Lean six sigma는 six sigma에 lean 개념을 접목시켜, 부가가치를 창출하지 못하는 프로세스 단계를 먼저 제거하여 프로세스 속도나 사이클 타임을 향상시키는 프로세스개선 방법론을 의미한다. Six sigma의 최우선 목표가 품질 개선이라면 lean은 생산 공정의 낭비제거에 초점이 맞춰져 있다. 그러나 quality와 함께 speed, cost를 고려하지 않는다면 프로세스의 속도나 투자자본의 감소를 개선하기 어려울 것이다. Lean six sigma는 lean의 속도와 six sigma의 무결점, 이 두 가지에 집중하여 원치 않는 복잡성을 제거하고 고객에게 집중하고 무결점 서비스를 제공하는 것이다. 본 연구에서는 우편물류에 lean six sigma를 적용한 프로세스 개선 방법론을 제시한다.

• 산업경영시스템학회지
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• 제38권1호
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• pp.101-109
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• 2015

This paper suggests a procedure to define business process improvement (BPI) projects with analysis results based on the cause-and-effect chain. The procedure developed in this paper focuses on eliminating root causes of business problems resulted from abnormal events occurred in business process executions. First, we develop three criteria used to make clusters of the root causes where a cluster of root causes will be eliminated together by a BPI project defined based on the cluster. Second, we develop a method to formulate desired expectations from the BPI project. Also, we suggest a method to calculate the relative importance of the BPI projects that help a BPI organization determine priorities of them. We illustrate the procedure and the methods with some examples for the domestic mail delivery process in the postal service industry.

• 한국자원식물학회지
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• 제24권6호
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• pp.733-740
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• 2011

For the current study, 2,000 questionnaire sheets were printed and distributed while at the same time postal questionnaires were also conducted. The questionnaire survey was conducted July 25 through September 25, 2008, whereby 206 copies of desirable responses were secured. Analysis of the survey made it possible to grasp the overall current status and prospects of the mountain-grown ginseng business, and the level of technology required for cultivating mountaingrown ginsengs. It was learned that, with no legal and institutional arrangements now in force, no precise facts and figures concerning the total area cultivated and the quantity produced are currently available, and that the products are being marketed under the table. Under such circumstances, it is high time for the mountain-grown ginseng cultivation business to contribute to the promotion of incomes of the farming households and the generation of national wealth by developing the business into a systematic industry. This study conducted a survey on the current status of mountain-grown ginseng producers and of their production, thereby contributing to the introduction of policies for mountain-grown ginsengs.

• 산업경영시스템학회지
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• 제32권4호
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• pp.79-86
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• 2009

The purpose of this paper is to analyze the 24 mail center's efficiency and productivity changes from first quarter to fourth quarter of 2008 using window analysis and Malmquist productivity index. Row views of window analysis results make it possible to determine trends and/or observed behavior with the same data set, and column views to examine the stability of results across different data sets. Malmquist productivity indexes greater than unity translate into improvements in productivity, and less than unity mean deterioration in performance over time. The results of this study suggest that DEA models under dynamic situations such as window analysis and Malmquist productivity index enable us to comprehend the efficiency and productivity changes over time and to show the direction of improvements.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2002년도 춘계학술발표논문집 (하)
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• pp.1261-1264
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• 2002

개인 통신 서비스에서 주된 당면 문제중의 하나는 위치를 자주 이동하는 많은 이동 단말기들의 위치를 찾는 것이다. 위치 관리를 성취하기 위하여 많은 네트워크 신호처리 트래픽과 데이터베이스 질의가 요구된다. 다수의 정책들은 이동 단말기의 현재 위치를 저장하기 위하여 위치 레지스터 데이터베이스를 사용하고, 그 위치 레지스터의 고장에 대해 약점을 가지고 있다. 이 논문에서, 우리는 위치 레지스터들의 고장을 포용하는 분산 홈 위치 레지스터를 갖는 결함 포용 전방 포인터 방법을 제안한다. 제안하는 방법의 성공을 분석적 모델로 평가하고, Biaz의 우회 전방 정책, 두개 경로 전방 정책과 성능을 비교한다.

• 품질경영학회지
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• 제30권4호
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• pp.120-136
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• 2002

The CRM is the process of integrated customer management to increase the profitability of firm as a maximizing the consumer's value and supplying the high quality product or service. The Post Information Service Headquarter was recognizing the importance of CRM and constructed the customer relationship management system that based on CRM, steadily has made an endeavor for operating to improve the job operation such as posting, banking and insurance. This research analysed the impact of service quality on the customer satisfaction in the Korea Post Office. First of all, we review the existing literature on measurement of service quality and management. As a result of this review and survey of the employer in post office, nineteen factors emerged as important to the service management of The Korea Post Office; Postal Services, Banking Services, Insurance Services. The regression analysis was utilized for analyzing the influence of service quality factors upon the customer satisfaction. Results show that service quality factors have a statistically significant impact on the customer satisfaction of the Korea Post Office.

• Journal of Information Science Theory and Practice
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• 제6권1호
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• pp.18-30
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• 2018

Interest in open data is continuing to grow around the world. In particular, open government data are considered an important element in securing government transparency and creating new industrial values. The South Korean government has enacted legislation on opening public data and provided diversified policy and technical support. However, there are also limitations to effectively utilizing open data in various areas. This paper introduces an administrative district knowledge model to improve the sharing and utilization of open government data, where the data are semantically linked to generate a knowledge graph that connects various data based on administrative districts. The administrative district knowledge model semantically models the legal definition of administrative districts in South Korea, and the administrative district knowledge graph is linked to data that can serve as an administrative basis, such as addresses and postal codes, for potential use in hospitals, schools, and traffic control.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2007년도 추계학술발표대회
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• pp.475-476
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• 2007

밀집리더 기능이 지원되는 RFID 리더 10 대를 대전우편집중국 발착장에 4 미터 간격으로 설치한 상태에서 우편용 파렛을 1.2m/s 의 속도로 이동시키며 인식실험 한 결과 만족할 만한 리더 인식률을 확인할 수 있었다. 이 인식실험 결과를 물류관리에 적용할 수 있을 것으로 생각되며, 이를 위해 물류가 이동되는 장소의 차량 발착장에 설치하여 운용할 경우 소기의 목적을 달성할 수 있을 것이다.

• 로봇학회논문지
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• 제17권4호
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• pp.431-437
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• 2022

This paper deals with a study on the automatic depalletizing robot for parcels loaded in rolltainer of domestic postal distribution centers. Specifically, we proposed a robot system that detect parcels loaded in a rolltainer with a 3D camera and perform de-palletizing using a cooperative robot. In addition, we developed the task flow chart for parcel de-palletizing and the method of retreat motion generation in the case of collision with rolltainer. Then, we implemented the proposed methods to the robot's controller by developing robot program. The proposed robot system was installed at the Anyang Post Distribution Center and field tests were completed. Field tests have shown that the robotic system has a success rate of over 90% for depalletizing task. And it was confirmed that the average tact time per parcel was 7.3 seconds.

• 로봇학회논문지
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• 제18권3호
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• pp.323-329
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• 2023

This paper discusses the application of collaborative robots to the de-palletizing in IMC (Inte-grated Mail Center). The domestic courier logistics market has grown rapidly, and logistics centers are reaching critical capacity. Therefore, digital innovation based on logistics automation is necessary, and this paper looks at the factors to be considered when introducing collaborative robots and improvement measures considering the characteristics of the de-palletizing task. The benefits of introducing collaborative robots include immediate efficiency and the goal of assisting workers. The paper reviews related research and cases of collaborative robots applied to logistics centers and summarizes the results of collaborative robots introduced to actual postal logistics centers. The paper also provides a comparison of collaborative robots and industrial robots and presents four candidates for collaborative robots for logistics work. The paper also considers suction grippers to be mounted on the arm to grasp the parcel. The paper concludes by discussing the introduction of collaborative robots in the post office logistics center.