Beijing Aerospace Changfeng Co., Ltd. (hereinafter referred to as "Changfeng"), is a high-tech listed company (securities code: 600855) based on high-end technology and application achievements of China Aerospace Industry [4], and a Aerospace Military enterprise as the background (security code: 600855) [4]. China Aerospace Science and technology Defense Technology Research Institute is a major shareholder of Changfeng aerospace, and China Aerospace Science and Technology Group Co., Ltd. is its actual controller.
The main business of Changfeng is located in four parts: public safety, intelligent medical treatment, electronic information and intelligent power supply, involving safe city, large-scale activity security, emergency maintenance, land security, prevention and control of key places, intelligent transportation, police information, intelligent building, geographic information application, medical equipment, medical information, operation room engineering, network energy and new energy Special power supply, special computer, infrared photoelectric products and other business fields are listed enterprise groups integrating top-level planning and design, complex engineering implementation, high-end equipment manufacturing and comprehensive operation services.