1. K.-T. Kim and Y.-H. Jun, “A Conceptual Design and Feasibility Analysis of a Window Cleaning Device,” Journal of the Korea Institute of Building Construction, vol. 20, no. 6, pp. 537-543, 2020.
2. N. Elkmann, T. Felsch, M. Sack, J. Saenz, and J. Hortig, “Innovative service robot systems for facade cleaning of difficult-to-access areas,” IEEE/RSJ International Conference on Intelligent Robots and Systems, Lausanne, Switzerland, 2002.
3. H. Lee, ZDNet Korea Newspaper, [Online], https://zdnet.co.kr/view/?no=20210726162749, Accessed: November 9, 2021.
4. S. Joo, Robot Newpaper, [Online], http://www.irobotnews.com/news/articleView.html?idxno=28015, Accessed: March 22, 2022.
5. The study on the integrated control system for curtain wall building façade cleaning robot