For facilities & asset operation and maintenance services, it can replace the traditional manual offline inspection work, automatically perform the daily inspection, recording, monitoring, analysis and supervision of facilities, and form seamless docking applications with various upper-level information system software to meet the management needs of the whole life cycle of facilities. It is suitable for a variety of typical scenarios such as facilities and equipment, site environment, space quality, and energy efficiency management, and is a basic professional tool for facility operation and maintenance in the information age.