텍스트마이닝 기반의 중심기술 분석을 통한 경전철용 무선전력전송 기술 개발 전략
The Strategy of Wireless Power Transfer for Light Rail Transit By Core Technologies Analysis Based on Text Mining
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초록
In this paper, we extracted relevant patent data and conducted statistical analysis to understand the technical development trend related to Wireless Power Transfer (WPT) for Light Rail Transit (LRT). Recently, with the development of WPT technologies, the Light Rail Transit (LRT) industry is concentrating on applying WPT to the power supply system of trains because of their advantages compared wired counterpart, such as low maintenance cost and high stability. This technology is divided into three areas: wireless feeding and collecting technology, high-frequency power converter technology and orbital and infrastructure technology. From each specific area, key words in patent document were extracted by TF-IDF method and analyzed by social network. In the keyword network, core word of each specific technology were extracted according to their degree centrality. Then, the multi-word phrases were also built to represent the concept of core technologies. Finally, based on the analysis results, the development strategies for each specifics technical area of WPT in LRT filed will be provided.
Abstract
In this paper, we extracted relevant patent data and conducted statistical analysis to understand the technical development trend related to Wireless Power Transfer (WPT) for Light Rail Transit (LRT). Recently, with the development of WPT technologies, the Light Rail Transit (LRT) industry is concentrating on applying WPT to the power supply system of trains because of their advantages compared wired counterpart, such as low maintenance cost and high stability. This technology is divided into three areas: wireless feeding and collecting technology, high-frequency power converter technology and orbital and infrastructure technology. From each specific area, key words in patent document were extracted by TF-IDF method and analyzed by social network. In the keyword network, core word of each specific technology were extracted according to their degree centrality. Then, the multi-word phrases were also built to represent the concept of core technologies. Finally, based on the analysis results, the development strategies for each specifics technical area of WPT in LRT filed will be provided.
참고문헌 (22)
- S. Chhawchharia, "Investigation of wireless power transfer applications with a focus on renewable energy", Renewable and Sustainable Energy Reviews, 91, pp.888~902 (2018)
- S. Das, "Wireless Power Transfer in Electric Vehicles", International Journal of Applied Environmental Sciences, 13(7), pp.643~659 (2018)
- Jun-Ho Lee, "A Study on the Configuration of the Wireless Power Transfer System for High Power", pp.1653~1654 (2014), The Korean Institute of Electrical Engineers
- "Wireless Charging Market by Technology (Inductive, Resonant, Radio Frequency (RF), and Others), and Industry Vertical (Electronics, Automotive, Industrial, Healthcare, and Aerospace & Defense) - Global Opportunity Analysis and Industry Forecast, 2018-2025"[URL]
- 전성해, "특허분석을 이용한 지능형시스템의 기술예측", 한국지능시스템학회 논문지, 11(1), pp.100~105 (2011), 한국지능시스템학회
- Victor Tang, "Patent litigation as a leading market indicator", International Journal of Technology Transfer and Commercialisation, pp.280~291 (2002)
- Protecting Their Intellectual Assets: Appropriability Conditions and Why Us Manufacturing Firms Patent (Or Not), "Wesley M. Cohen", National Bureau of Economic Research, ~, pp.NBER Working Paper No. 7552 (2000)
- Richard C. Levin, "Appropriability, r&d spending, and technological performance", The American Economic Review, 78(2), pp.424~428 (1998)
- Manuel Trajtenberg, "A penny for your quotes: patent citations and the value of innovations", The Rand Journal of Economics, 21(1), pp.172~187 (1990)
- P Almeida, "Knowledge sourcing by foreign multinational s: Patent citation analysis in the US semiconductor industry", Strategic management journal, 17(Winter Special), pp.155~165 (1996)
- JO Lanjouw, "Patent quality and research productivity: Measuring innovation with multiple indicators", The Economic Journal, 114, pp.441~465 (2004)
- Menaka S, "Text Classification using Keyword Extraction Technique", International Journal of Advanced Research in Computer Science and Software Engineering, 3(12) (2013)
- 최일영, "제품 네트워크 분석을 이용한 고객의 구매제품 특성 비교 연구", 한국경영과학회지, 34(4), pp.57~72 (2009), 한국경영과학회
- 전성해, "통계적 텍스트 마이닝을 이용한 빅 데이터 전처리", 한국지능시스템학회 논문지, 25(5), pp.470~476 (2015), 한국지능시스템학회
- D Hansen, "Analyzing Social Medial Networks: Learning by doing with NodeXL", Computing, ~ (2009)
- 조재인, "네트워크 텍스트 분석을 통한 문헌정보학 최근 연구 경향 분석", 정보관리학회지, 28(4), pp.65~83 (2011), 한국정보관리학회[DOI]
- 최일영, "사회 네트워크 분석에 기반한 도서관 학술DB 이용 패턴 연구: K대학도서관 학술DB 이용 사례", 정보관리학회지, 27(1), pp.25~40 (2010), 한국정보관리학회[DOI]
- Dinesh Baniya Kshatri, "A Brief Overview of Wireless Power Transfer Techniques", The Institute of Internet, Broadcasting and Communication 2015 Conference Paper, pp.163~ (2015)
- Jongho Choi, "Characteristic analysis of magnetic resonance coils for wireless power transfer", Journal of Electrical Engineering &Technology, pp.15~17 (2015)
- Michael A. Brubaker, "System Level Considerations for Integration of Resonant Capacitors in High Power Wireless Charging", Conference on Electric Roads &Vehicles, pp.661~3501 (2012), SBE Inc.
- "Magnetic Resonance Method of Wireless Power Transfer Technology for Industrial Equipment, Achieves Wireless Power Transfer to Mobile Objects with High Efficiency Can Also Be Used for Rotating Parts Such as a Robot Arm"[URL]
- Wireless Power Transfer for Electric Vehicle, school of doctoral research in : Industrial Engineering, "Kishore Naik Mude", University of Padova, ~ (2015)