With the continuous advancement of urbanization, the number of infrastructure such as high-rise buildings, photovoltaic power stations and high-voltage transmission lines has increased year by year, and the high-altitude cleaning market has also developed rapidly. According to market research reports, the global high-altitude cleaning market is expected to grow at a compound annual growth rate of 6.3% in the next few years, and the market size will reach US$4.6 billion by 2028.