• Journal of Biosystems Engineering
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• v.35 no.1
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• pp.31-36
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• 2010

A small unmanned helicopter was suggested to replace the conventional spray system. Aerial application using an agricultural helicopter helps precise and timely spraying, and reduces labor intensity and environmental pollution. In this research, a rotor system (SW05) was developed and its lift capability was evaluated. Lift force for the dead weight of the helicopter was obtained at the grip pitch angle of $12^{\circ}$. As the pitch angle increased to $14^{\circ}$ and $16^{\circ}$, the payload increased to 176 N and 216 N, respectively. Compared with SW04 airfoil performance in the total lift, the SW05 airfoil showed nearly the same capacity, but the payload of the SW05 was reduced because of the increased dead weight. A rated flight condition was defined as lifting mean payload of 294 N with the grip pitch angles of $16{\sim}17^{\circ}$ at the rotor rotating speed of 850~950 rpm for the adjusted engine power. The fuel consumption would be 4.8~6.0 L/hr, and the air temperature of cooling fan should be kept below $160^{\circ}C$.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.307-310
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• 2007

모바일 단말기 컨텐츠 제공자에서 생산되는 대부분의 모바일 응용 SW는 짧은 개발 기간과 생명주기, 그리고 시장 선점이라는 특성을 가지고 있다. 또한 국내 모바일 응용 SW의 경우 다양한 모바일 단말기의 화면크기 그리고 다양한 모바일 플랫폼을 지원해야 하는 특성과 제약사항을 가지고 있다. 이러한 제약사항을 극복하기 위해서 본 논문에서는 모바일 응용 SW의 사용자 인터페이스 모델을 제시하고 있으며 이를 이용하여 모바일 응용 SW개발 방법을 제시한다. 모바일 플랫폼에 독립적인 인터페이스 모델을 사용함으로써 개발자는 사용자인터페이스 개발에 소모되는 시간을 최소화하고, 구현에 그 정보를 사용함으로써 기민하고 좀 더 빠르게 모바일 응용 SW를 개발할 수 있는 장점을 가진다.

• Journal of the Korea Convergence Society
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• v.8 no.9
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• pp.17-23
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• 2017

The National Competency Standards (NCS) is a standard that allows korea to efficiently organize the training of national talents by systematically classifying the knowledge, skills, and attitudes necessary for the job of industry groups. Ontology is a discipline that allows the abstract information in the human concept to be expressed in a form that enables computing to be done. There is a need to formalize the knowledge management by converting the NCS system currently stored in the simple DB into an ontology. This study design and implement NCS ontology for the task of "Application SW Engineering" among vast NCS jobs, enabling intelligent knowledge management and inference search of the job. In addition, it provides consistency with the formalization specification of the learning contents structure of the competency unit elements of the job, and provides the basis for extension to the whole NCS job ontology.

• Journal of the Korea Convergence Society
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• v.10 no.6
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• pp.1-6
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• 2019

This paper examines the complexity of recent SW development such as the 4th industry to apply the requirement engineering and redimimn application to the project to solve the difficulty of scope management during project management of medium and small businesses. These engineering techniques were applied to mid-sized and small-sized SW development projects. It was verified through supervision of 15 SW development projects. As a result, we observed about 30% reduction in related issues. In addition, Redmimn was introduced to SW development projects involving medium and small sized companies, and it proved that it has the effect of shortening delivery time through requirement management and tracking management. In order to secure the safety of the SW system development project, it is necessary to apply the required engineering techniques and tools, and it is necessary to continuously cultivate professional manpower to carry out this.

• Journal of the Korea Society of Computer and Information
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• v.29 no.3
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• pp.217-225
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• 2024

To foster the core talents of the future, the development of diverse and substantial SW·AI education programs is required, and a systematic system that can assist public education in SW and AI must be established. In this study, we develop and combine SW·AI education modules to construct a SW and AI education program applicable to public education. We also establish a systematic education system and provide sustainable SW·AI education to elementary, middle, and high school students through 'Job's Garage Camp' based on various sharing platforms. By creating a sustainable follow-up educational environment, students are encouraged to continue their self-directed learning of SW and AI. As a result of conducting a pre-post survey of students participating in the 'Job's Garage Camp', the post-survey values improved compared to the pre-survey values in all areas of 'interest', 'understanding and confidence', and 'career aspirations'. Based on these results, it can be confirmed that students had a universal positive perception and influence on SW and AI. Therefore, if the operation case of 'Job's Garage Camp' is improved and expanded, it can be presented as a standard model applicable to other SW and AI education programs in the future.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.12
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• pp.97-106
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• 2020

The purpose of this study is to determine how to apply ISO/IEC/IEEE 29119 software test procedures and ISO/IEC 25023 software test evaluation items to software-accredited testing laboratories based on the ISO/IEC 17025 international standard requirements. As a method, the overall requirements for their application to a test laboratory were analyzed by mapping ISO/IEC/IEEE 29119 and ISO/IEC 25023 based on ISO/IEC 17025. According to the mapping analysis, a total of 29 documents were created, including quality manuals, procedures, and test guidelines for the operation of the test laboratory. As a result of the study, a test laboratory management system was developed using Confluence 6.15 software by applying the analyzed results of the overall requirements. The test procedures, documents, and records were stored in, and operated from, this system. Verification of suitability for operation of the test laboratory was conducted by KOLAS evaluators through a document review and an on-site audit at the LG Electronics SW Accredited Test Laboratory in Seoul. In conclusion, it was confirmed through the KOLAS evaluation that the test laboratory management system and the operation of the test laboratory are appropriate and, compared with previous cases, the test laboratory operates effectively, and the overall schedule of accreditation could be shortened.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.6
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• pp.1429-1434
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• 2010

Generally, the simulator for mobile device tests automatically an application software after instilling again the event, which is saved in log file according to an event generation sequence, into the application software of device. But, the simulator performance for mobile device can be different according to a extraction layer even if the events are same. And, the sequence of events extracted from an application is changeable in the environment that multiple applications are operated concurrently. Therefore, even though the same applications is executed to the same sequence, the generation sequence of events is revised in accordance with the state of mobile device system, and whether the errors occur according to circumstances or not. This kind of application software error is very difficult to perform a debugging operation. In this paper, the execution state of various applications is verifiable through the re-editing of events after analyzing the events which is generated in application, kernel, middleware layer, and the event arrange/editor is designed and implemented to understand efficiently the influence on application, kernel, and middleware layer for events.

• Journal of Internet of Things and Convergence
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• v.8 no.6
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• pp.49-54
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• 2022

Rapid changes in modern society after the COVID-19 have highlighted artificial intelligence talent as a major influencing factor in determining national competitiveness. Accordingly, the Ministry of Education planned a large-scale SW·AI camp education project to develop the digital capabilities of 4th to 6th grade elementary school students and middle and high school students who are in a vacuum in artificial intelligence education. Therefore, this study aims to develop a camp-type SW·AI education program for students in grades 4-6 of elementary school so that students in grades 4-6 of elementary school can acquire basic knowledge in artificial intelligence. For this, the meaning of SW·AI education in elementary school is defined and SW·AI contents to be dealt with in elementary school are: understanding of SW AI, 'principle and application of SW AI', and 'social impact of SW AI' was set. In addition, an attempt was made to link the set elements of elementary school SW AI education and learning with related subjects and units of textbooks currently used in elementary schools. As for the program used for education, entry, a software coding learning tool based on block coding, is designed to strengthen software programming basic competency, and all programs are designed to be operated centered on experience and experience-oriented participants in consideration of the developmental characteristics of elementary school students. In order for SW·AI education to be organized and operated as a member of the regular curriculum, it is suggested that research based on the analysis of regular curriculum contents and in-depth analysis of SW·AI education contents is necessary.

• The Journal of the Korea institute of electronic communication sciences
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• v.15 no.5
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• pp.967-972
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• 2020

Most of the experimental tools currently used are applied to experiments in the physical field by utilizing sensors and only MBL that are suitable for specific experiments have been developed. However, There is no experimental design stage using SW fusion, and there is a limit to the application of various chemistry experiments in textbooks, and in the case of Arduino, it is difficult for students to learn and understand language when programming. In this paper, we designed and developed a SW education convergence science experiment apparatus including a learner's active experiment design process, overcoming the shortcomings of the existing microcomputer experiment and the limitations of software education.

• Journal of Information Technology Services
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• v.5 no.2
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• pp.179-188
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• 2006

MDD/MDA which recently raising its head is technology that increase software development productivity through automatic transformation form higer abstract model into lower abstract model, or from model to code. This paper analyzes the effect on productivity by measuring Function Point per MM(man-month) in a software development project which performed in CBD methodology, and introduce the method of applying MDD/MDA technology in the project.