• Electronics and Telecommunications Trends
• /
• v.39 no.4
• /
• pp.10-20
• /
• 2024

Recent advancements in autonomous flight technologies for Unmanned Aerial Vehicles (UAVs) have greatly expanded their applicability for various tasks, including delivery, agriculture, and rescue. This article presents a comprehensive survey of path planning techniques in autonomous navigation and exploration that are tailored for UAVs. The robotics literature has studied path and motion planning, from basic obstacle avoidance to sophisticated algorithms capable of dynamic decision-making in challenging environments. In this article, we introduce popular path and motion planning approaches such as grid-based, sampling-based, and optimization-based planners. We further describe the contributions from the state-of-the-art in exploration planning for UAVs, which have been derived from these well-studied planners. Recent research, including the method we are developing, has improved performance in terms of efficiency and scalability for exploration tasks in challenging environments without human intervention. On the basis of these research and development trends, this article discusses future directions in UAV path planning technologies, illustrating the potential for UAVs to perform complex tasks with increased autonomy and efficiency.

• Journal of Families and Better Life
• /
• v.25 no.2 s.86
• /
• pp.89-104
• /
• 2007

The purpose of this study was to analyze the affecting factors on male salary workers' level of retirement planning. The focus was on the causal effects on salary workers' attitude toward retirement and their level of retirement planning. The major findings were as follows.: First, the salary worker's attitude toward retirement was neutral, neither positive nor negative, and they estimated their level of retirement planning relatively high. Second, the major factors affecting on attitude toward retirement were salary workers' age, their current economic status, and future perspectives for the post-retirement life. Third, the major affecting factors on level of retirement planning were salary workers' age, health status, and level of self-esteem, household net asset, savings and investment for elderly life, and attitude toward retirement. forth, the causal effects on the level of retirement planning was verified, and attitude toward retirement had direct effect as well as indirect effect on the level of retirement planning. From the findings, it can be concluded that the salary workers' attitude toward retirement played a important role in the process of retirement planning.

• Journal of the Korean Institute of Landscape Architecture
• /
• v.30 no.5
• /
• pp.39-54
• /
• 2002

There have been endeavors for sustainable development all over the world after the Rio World Summit and the idea of sustainable development has become common paradigm. Now, Korea has come to a situation where we need to apply the concept of sustainable development inevitably. Especially housing estate development must be preliminary change for sustainable development. Therefore, the objectives of this study were to establish sustainable planning element system of housing estate, and to propose a sustainable planning model compatible with the Korean situation. The scope of this study focused on typical multi-family housing estates in Korea and the environmental sustainable planning model. The model was developed from the evaluation of the important level and extra costs of planning elements for sustainable development of housing estate. The important level of planning principles and elements was analyzed by conducting a survey to experts. As the results of this study, four planning section ('land use and transport', 'pollution and waste', 'energy', and 'natural resource') and twelve planning items were identified. Twenty-one planning principles and fifty-five planning elements were found. Synthetically, the sustainable planning element system is composed of four planning sections, twelve planning items, twenty-one planning principles, and fifty-five planning elements. Based on survey to experts, $\ulcorner$The short-term strategic model$\lrcorner$ was developed for the social implosion of sustainable development, which is composed of ten basic elements, eighteen necessary elements, twelve optional elements, and seven arbitrary elements. $\ulcorner$The long-term future model$\lrcorner$was developed for application to from 10 to 15 years later. It is composed of fifteen basic elements, thirty-three necessary elements, and seven optional elements. The planning model proposed by this study can be used as a prototype for the development of a sustainable housing estate and can provide a practical tool for developers and planners who are not familiar with the concept of sustainable development.

• The Journal of Sustainable Design and Educational Environment Research
• /
• v.20 no.4
• /
• pp.1-12
• /
• 2021

This study aims to propose a planning direction based on the results of domestic case studies and expert advice as a basic research to establish a specific implementation model for kindergarten education space in response to changes in future society and future education by escaping from the issues and facility limitations of existing kindergarten education space. To this end, it is intended to contribute to the positive effect of future education policies by being used as basic data for building specific implementation models through review of the 'Nuri' course, domestic case analysis, and revision of specific standards for kindergarten facility planning. The main research results were case analysis and advisory consultations to derive facility standards and planning directions divided into layout plans, general classrooms, support facilities, public spaces, and external spaces, and a process for identifying and systematizing space-influencing factors based on the facility standards derived in this basic study is needed hereafter.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2006.08a
• /
• pp.521-523
• /
• 2006

It is said that first year of e-Paper was 2004, when "sigma-Book" (LCD) by Panasonic and e-Book "Librie" (EPD) by Sony were introduced in the market. After that, many prototypes of e-Paper have followed in 2005. And also the related technologies have been evolved. I summarize the present status of e-Paper technologies and then propose the future trend.

• Korean Institute of Interior Design Journal
• /
• v.18 no.5
• /
• pp.137-146
• /
• 2009

The purpose of this study is to analyze the planning concept and spatial characteristics of the multi-housing units in prize-wining works of design competition since 2007. Literature review and content analysis were used for this study and 199units over $59m^2$ were analyzed to review the planning concept, spatial composition and layout. The results of this study were as follows; 1)The planning concept of these units were divided into three aspects; that is, eco-friendly, rational and sustainable unit plan by means of functional, environmental-friendly and future-oriented aspects. 2)Most unit plans had 3LDK+2bath and 4Bay types including family room as a public space. This results shows that family-room and bathroom has recently become more important than number of rooms in multi-housing units planning. 2)In terms of the spatial composition of LDK and Master Bed room, LDK area become large, open type and master-zone were showed 'bed room+dress and powder room+bath' type. 3)The entrance has a intermediated space as a balcony or a former space and the privacy of LDK space was protected from the entrance. This study has a significant moaning on grasping current trend in Korean multi-housing and to provide Information for future direction on housing-unit design.

• Journal of the Korean Institute of Landscape Architecture
• /
• v.32 no.3
• /
• pp.60-75
• /
• 2004

The purpose of this research is to evaluate five types of eco-village planning in order to introduce a landscape unit concept and theory in Korea. Although they had different backgrounds and motives of eco-villages planning, their common goal is to always maintain ecological planning and design in their villages. As concrete methods of ecological planning, we suggest three fundamental planning theories. 1. The boundary of a plan unit should be a watershed. 2. The survey and analysis of village ecotopes should be done in that defined watershed. 3. These results should be applied in the site and lot planning of eco-villages. These 3 steps should be done in a process and relevantly. In the evaluation of the five eco-village planning types, we found three results. 1. On a viewpoint of watershed, most planners recognized a watershed in survey and planning stages unconsciously. But they did not mention watersheds concretely and did not use this concept in the planning stage. 2. They did not define the concept of ecotope, but most planners recognized land-uses and vegetations of villages and vicinities as ecotopes. Also these could be proper ecotopes, but they did not use these compartment of ecotopes in the planning of ecosystem structure in villages. In addition, they did not deeply survey and analyze the ecotopes of villages and its vicinity. 3. On the viewpoint of sites and lots planning, they did not relevantly use the characteristics of watersheds and ecotopes in sites and lots planning. Therefore, they failed to implement the indigenous lots and subdivisions plan. In the size of lots and sites, they did not seriously consider the carrying capacity of ecosystem. We hope that our suggestion about the establishment of eco-villages planning is a fundamental theoretical framework of ecological planning in future eco-village planning.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.20 no.44
• /
• pp.287-295
• /
• 1997

In existing technology planning, there is lack of considerations such as technology fusion, users' requirements of future, gap analysis between technology development and production, and industrialization process of development technology, that is, technology diffusion and technology transfer strategy. The most noticeable thing is that there is an obvious transition from supplier-centered to consumer-centered in the development of service or product because users' needs are getting a diverse and high level with the paradigm change of industry and society in the 21st century. So it is very important to design effectively a technology planning system under integration of R&D-production-sales system for satisfaction of customers' various choices. In this paper, we present considerations being required strategically in technology planning through analysis of mutual relationship and interface between technology planning, R&D and production system.

• The Transactions of the Korean Institute of Electrical Engineers A
• /
• v.53 no.9
• /
• pp.521-528
• /
• 2004

The demise of the native franchise markets and the emergence of competitive markets in electricity generation service is substantially altering the way that operation and planning activity is conducted and is making it increasingly difficult for market participants such as generation firms to prospect the future electricity markets. Traditional generation expansion planning (GEP) problems which centrally determine the least-cost capacity addition plan that meets forecasted demand within pre-specified reliability criteria over a planning horizon (typically 10 to 20 years) is becoming no more valid in competitive market environments. Therefore, it requires to develop a new methodology for generation investments, which is applicable to the changed electric industry business environments and is able to address the post-privatization situation where individual generation firms seek to maximize their return on generation investments against uncertain market revenues. This paper formulates a new generation expansion planning problem and solve it in a market-oriented manner.

• Proceedings of the Technology Innovation Conference
• /
• 2002.06a
• /
• pp.125-139
• /
• 2002

This paper addresses the issue of increasing the effectiveness of national IT R&D planning through the adoption of the technology roadmapping process. As a needs-driven technology Planning tool, technology roadmapping can help identify and select technology alternatives to meet a set of market needs. Thus, it allows increasingly limited R&D investments to be used more efficiently. From this point of view, the Ministry of Information and Communication is considering introducing technology roadmapping to support its annual technology planning activity. In this contribution we explore how a technology roadmap could be integrated into IT technology planning and suggest some guidelines to successful technology roadmapping, on the basis of literature review, case survey and our experience, for organizations due to employ the roadmapping process in the future.