Founded in 1957, Academy of China Changfeng Electromechanical Technology (ACCET), is affiliated with China Aerospace Science and Industry Corporation (CASIC). After decades of development, we have become a comprehensive group with strong technical strength and overall advantages, integrating development, research, production, test, and service. We boast off the capability of the system overall design, study of the system of the systems, and system integration, with the strong technology in the field of microelectronics, photoelectron, and mechatronics. Our main business field is the solution, product and service of the security fields, such as border surveillance, key asset security, major event security and cyber security, etc. We reached domestic and international leading position in areas of whole system definition, radar and infrared detection, target characteristics and identification, simulation, computer and common software, ground equipment and advanced manufacturing technology, etc.