Dongwei intelligence is a collection of research and development, production, sales and technical services in one of the national high-tech enterprises. With a complete underlying core technology and intellectual property rights in multimedia communication, video, audio, Internet of Things control and other fields, the products cover digital audio, intelligent display and presentation, all-media control platform, integrated communication and other fields. It has a wide range of successful cases in the fields of Public Prosecutions and Law Department, Emergency Response, Meteorology, Civil Air Defense, Public Safety, Education, Smart City, Culture and Tourism, and Big Data.