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Wrote the background of the report including :  1.1.1 Manpower shortage (cause) 1.1.2 Decreasing cleaner efficiency (cause) Conducted primary research(interview) includeing: Age of the cleaners. Time needed for cleaners to find a dirty table. Time required for cleaning a table. Conducted primary research(survey) includeing: Averange salary of hawker center cleaners. Future career expectation among people under 30. Discussed with teammates about the design of rail system. Conducted second research related to existing rail system and self cleaning robots by using Google scholar search and Open AI ChatGPT. Conducted the second research related to mircrocontrol system for the problem solution by using Google search engine and Open AI ChatGPT. Conducted the second research related to type of Arduinos by using Google search engine. Wrote the sample codes of Arduinos. Wrote the Methodology of the report(first draft). Wrote and Revise the introduction and background of the report(final draf

  The DJI Mavic Air 2 is a cutting-edge consumer drone produced by DJI.  It has provided perfect features and functions t hat have attracted plenty of drone enthusiasts   since it was released in 2020. According to the information offered by its official webpage “DJI Mavic Air 2” (n.d.) , “Mavic Air 2 takes power and portability to the next level, offering advanced features in a compact form factor.” (DJI, n.d. )   The Mavic Air 2  has a foldable structure which increases its portability and  ease of transportation. The drone is professional in taking photos and videos. It consists of a 1/2-inch CMOS sensor to capture 48MP photos and a top-notch camera capable of capturing 4K video at up to 60 f ps . These features also improve the performance and the image quality in low-light conditions. In addition, its own advanced anti-collision design, which is the “ Aircraft Obstacle Avoidance System ”  ensures that users have a safe experience during their flight. Users can contro