• The Journal of the Korea institute of electronic communication sciences
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• v.16 no.3
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• pp.565-570
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• 2021

Agriculture in South Korea is losing productivity due to the lack of manpower as aging population increases. To overcome this, the agricultural robot market is growing rapidly, and research is being conducted on remote control and autonomous driving of agricultural robots. This work designs the appearance and structure of agricultural robots and implements the devices and control systems for driving. By utilizing and optimizing LiDAR sensors, we applied object recognition technology, which is an essential function for autonomous driving. This can reduce labor costs and improve productivity of transportation tasks that require the most labor in agriculture.

• 한국벤처창업학회:학술대회논문집
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• 2022.04a
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• pp.83-88
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• 2022

현재 4차산업혁명시대에 창의적인 아이디어와 적극적인 도전정신으로 무장한 스타트업이 글로벌 산업을 주도하고 있다. 정부에서도 지역별 스타트업 생태계 활성화를 위해 전국 17개의 창조경제혁신센터 운영을 지원하며, 각 센터별로 '개방성, 자율성, 다양성'의 운영 원칙 하에 지역별 스타트업 창업 생태계 허브, 공공 액셀러레이터, 그리고 오픈 이노베이션 플랫폼 역할을 담당하고 있다. 최근 수도권 스타트업 생태계는 활성화되고 있는데 비해, 지역의 스타트업 생태계는 인력, 자금 등 스타트업 성장에 핵심적인 요소 확보에 큰 어려움을 겪고 있다. 특히, 부산은 일자리를 찾아 수도권으로 떠나는 등 청년층의 이탈로 고령화가 가장 빠른 도시로서, 지역 일자리 문제를 해결하는 주요 방법 중의 하나로 스타트업 생태계 활성화가 중요한데, 스타트업 지원기업 중에서도 초기 스타트업 창업 및 성장 지원 업무에 집중하는 부산창조경제혁신센터의 역할이 매우 중요하다. 본 연구에서는 부산창조경제혁신센터의 운영 개선 방향을 내부 직원 설문조사로 도출하고, 타겟 고객을 창업가/초기 스타트업(Creator), 교육기관(Campus), 대기업(Company), 그리고 커뮤니티(Community)의 4C로 정의하였다. 부산창조경제혁신센터의 일관된 방향성 정립을 위해 미션과 비전을 각각 정의했으며, 그것을 달성하기 위한 전략 및 실행 방안을 도출하였다. 마지막으로 센터와 직원들이 공동 성장할 수 있는 센터 업무 협력 체계와 역량 강화 교육 체계를 제시한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.957-958
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• 2023

본 연구에서는 공정 내 인체 끼임 사고 및 저출산 고령화 시대 등의 문제들로 인한 인력 감소 문제들을 해결하기 위하여 인공지능 기반의 모빌리티 플랫폼을 개발하였다. 본 플랫폼은 yolo-v4 기반으로 로봇이 공정 내부를 이동하면서 공정 내 불량 와이어를 검출하여 공정 유지보수 관리자에게 알려 주고 실시간으로 공정 내부 상황을 무선으로 모니터링할 수 있는 기술을 연구하였다. 또한, 로봇에는 무선 충전 기능을 갖추고 있어 추가적인 공정 내 인체 끼임 사고 등을 예방할 수 있도록 하였다. 본 연구 결과에서는 불량 와이어 검출 시, 평균 92.1%의 정확도를 보였으며, 공정 제품에 대한 양품, 불량품의 검출은 평균 98%의 정확도를 보였다. 또한, 실시간 무선 영상 모니터링는 24fps로 전송되어 공정 내부를 살피는 것에 유의미한 결과를 보였다.

• Journal of Digital Convergence
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• v.13 no.8
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• pp.69-82
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• 2015

This article critically examines the backgrounds and meanings of National Competency Standards (NCS) that is employed by Korean colleges for managing performance-based, competency-based curriculum. Findings are as follows: 1) the NCS-based curriculum was primarily adopted to enhance students' business competency for their successes in a competitive job market. 2) NCS is questioned its efficacy to resolve Korean employment issues in a serious economic structure in which a growing number of jobless youth and aged employees and education discrimination are involved. 3) NCS, with its emphasis on the Tyler Rationale and principles of scientific curriculum development, has many criticisms due to its technical approaches to educational processes and needs to be replaced with an alternative paradigm. 4) This article suggests that administrators, policy makers, and educators seek ways to resolve NCS issues considering contextual features of Korean job market and rethinking NCS ideology in the education process. A need for curriculum reconceptualisation is discussed.

• Korea journal of population studies
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• v.23 no.2
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• pp.113-141
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• 2000

The aim of this paper is to project the state of the labor farce and employment in Korea from 2000 to 2005. The labor market in Korea is experiencing significant changes with the rapid development of Information and Telecommunication Technology (ICT) and the transition of the Korean economy into a knowledge-based economy. On the labor supply side, it is expected that the growth of the labor force will be sluggish; baby boomers will become the middle-aged, while the proportion of senior citizens, the highly educated and the female labor force will grow fast. These changes will alter the human resources management system in business sectors. Moreover, the permanent employment relationship, the hierarchy system and the seniority-based wage system are all expected to change. On the labor demand side, the employment share in highly skilled. knowledge-intensive industries will grow faster than the rest of the economy in tandem with the quickly growing output share of these industries. Especially, more jobs will be created in the ICT industries. The proportion of labor in highly skilled and professional occupations will also grow faster than in other occupations. At the same time, the employment share of female workers will grow more quickly than that of the male workers. These changes, however, may worsen income inequalities and/or increase the unemployment rate when workers do not have the suitable skills or knowledge required by the knowledge-based economy. To avoid this, it is necessary for the government to build up a lifetime learning system for workers.

• Journal of the Korea Institute of Building Construction
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• v.16 no.5
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• pp.429-436
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• 2016

Because of the shortage of construction workers due to The rising labor costs and an aging labor force, construction time has been extended. As a solution, The construction time of high-rise buildings can be reduced by adopting precast concrete construction methods. Most relevant studies have focused on the development and structural analysis of such methods and not on their construction management. Therefore, this study focused on the construction management of the hollow precast concrete column (HPC) method. The objective of this study was to evaluate the performance of HPC formulations through the analytic hierarchy process and benefit-cost analysis. After a gap analysis of the available literature and expert interviews, the evaluation criteria were selected. A questionnaire survey was administered to professionals with ample experience in precast concrete construction for the pair-wise evaluation of the benefit and costs of the HPC method. The results show that the benefits of the HPC method outweighed its costs. Therefore, the HPC method is a suitable substitute for the half-slab method.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.12
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• pp.8896-8900
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• 2015

Recently, various career paths draw young workers from twenty to forty to the metro city in Korea. The korea's agriculture sector has decrease in population and productivity which result a threat for it to become an aging society. Also, our country has a difficulty in a tough competition with other countries through agricultural market-opening such as WTO and FTA. In this paper, we introduce a technology using open-source project including Raspberry that easily accessible and applicable to an agricultural industry. In other words, as we build a device monitoring the production environment, everyone can use agricultural sector through an IoT technology, solve the problem with a labor shortage through production process automation, check the condition of the agricultural environment in real time, enhance the quality of the agricultural product by corresponding a certain condition, and improve the competitiveness through a competitive price comparing to the worldwide farm product. Also, we find a way to use data to the other business through data collection and analysis in a process of using the IoT.

• The Journal of the Korea Contents Association
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• v.19 no.8
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• pp.525-534
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• 2019

Korea is facing one of the fastest aging population problems in the world due to the extension of life expectancy and low birth rates due to economic development and the development of health care. It has become difficult to take care of elderly people in need of long-term care at home, and social problems such as dementia and the increase in stroke cases are serious problems. The government is enacting and implementing the Long-Term Care Insurance Act for the purpose of improving the quality of life for senior citizens subject to long-term care and alleviating the burden of family support in order to solve such social structure and problems for senior citizens. However, as a result of the implementation of the long-term care insurance system for the elderly, the privatization of the facilities and the disorder are causing widespread requests for public accountability of the services and the enhancement of the quality of the facilities. In addition, various arrangements are needed for the production of low-wage medical care workers, tasks for quality improvement, problems regarding financing methods, and so on. In order to maintain and develop the long-term care insurance system for the elderly, the government will consider seeking ways to improve the legal and institutional aspects according to changes in the social environment of the age, as well as seeking mental and psychological measures for the stabilization of old life as well as physical health.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.12 no.3
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• pp.299-305
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• 2019

This study was initiated to solve the difficulties of aged and female workers in agriculture society due to aging and demise of young people. In the case of the conventional elevated lift, the risk of exposure to uneven road or work environment, not the difficulty of professional qualification and operation, and the risk of exposure to the uneven road or working environment, were also studied based on previous researches so that women could easily and efficiently perform productive agriculture. First, the simulation was carried out through the prediction model of traction performance using the object of agricultural forklift, and the soil of the Kimhae city in Gyeongnam (34.125kPa, internal friction angle 35.294deg, external friction angle 13.620deg, Adhesion force 5.750 kPa, average cone index 0-15 cm cl, 1001.8 kPa). In the case of the forklift for simulation, the driving force and the kinetic resistance prediction modeling of the agricultural electric forklift are modeled. Based on this model, the motor control drive adopts the 1232E model, which is a drive dedicated to AC motor, and divides the two drivers into master and slave And the model for the simulation was designed to control motor drive, hydraulic drive, and various outputs on the main PCB. The simulation model is undergoing continuous simulation, modification and supplementation. Based on this research, we will continue research for development of safer and more efficient agricultural electric forklift.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2017.04a
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• pp.61-61
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• 2017

노지 고추 수확작업은 100% 인력에 의존하고 있으며 7~9월에 걸쳐 5~6회의 다수의 작업이 수행되어 노동 강도가 크다. 또한 농촌의 고령화와 노동력 감소로 인하여 수확인력의 부족이 발생하고 있음에도 불구하고 시중에 유통되고 있는 고추 및 노지채소 수확작업 편이기기는 동력이 아닌 인력으로 이랑사이를 이동하며 작물을 수확하는 구조로 되어있다. 이는 노동 강도를 줄여주는 효과가 미미하기 때문에 동력이 수반된 편이장치가 필요하며 또한 적절한 모터 및 제어장치가 요구된다. 적절한 모터를 선정함에 있어서 영향을 주는 인자는 주행저항(RR)이며, 구성요소로는 구름마찰저항(Rr), 공기저항(RА), 등판저항(Rg), 가속저항(Ra)이 있으며, 다음과 같은 식으로 정의된다. 주행저항(RR)=구름마찰저항(Rr)+공기저항(RA)+등판저항(Rg)+가속저항(Ra) 구름마찰저항(Rr)=구름마찰저항계수(${\mu}$)${\times}$차량총중량(W) 등판저항(Rg)=차량총중량(W)${\times}Sin{\theta}$ 공기저항(RА), 및 가속저항(Ra)은 1m/s 미만의 속도가 요구되기 때문에 무시할 수 있다. 동력원에서 최종 구동축으로 전달된 동력은 주행장치를 통하여 지면에 전달되고 이 동력에 의해 작업차의 주행장치에 추진력이 발생하며 주행장치의 추진력이 주행저항 이상이 될 때 작업차는 전진하게 된다. 따라서 작업차의 주행속도를 V(m/s), 전동기의 효율을 ${\mu}_m$, 동력전달효율을 ${\mu}_{TD}$라고 하면 다음과 같은 식이 산출된다. 전동기의 소요출력(P)=주행저항(RR)${\times}$속도(V)/전동기의 효율(${\mu}_m$)${\times}$동력전달효율(${\mu}_{TD}$) 구름마찰계수를 0.3이라고 할 때 포장의 경사도와 작업차의 주행속도 변화에 따른 주행소요 동력을 비교하였다. 주행소요동력은 포장의 경사각과 주행속도의 증가와 더불어 증가한다. 고추 및 노지채소 수확작업 편이장치의 작업시 요구되는 주행속도는 일반적으로 0.25m/s, 등반각은 5도이다. 이때 구동 전동기의 출력은 안전율을 고려하여 식에 의해 계산한 결과 1ps으로 산출 되었다. 선정한 구동모터의 감속비는 7.18 : 1, 에너지의 효율은 78 %, 기동토크는14 N/m 이며, 축전지의 경우 구동모터에 기반 하여 구입이 간편하고 상용화 되어있는 연축전지를 사용하여 교체 및 수리가 간단하도록 하였다. 축전지는 12V 18Ah의 축전지 2개를 사용한다.