Business scope: Design, installation, commissioning, operation and maintenance, consultation and sales of building intelligent equipment, industrial automation equipment, and measurement and control systems; Development, technical consultation, and technical services of Internet information technology; Technical development, technical services, and technical applications of computer network information and computer software; Multimedia technology development; Building energy conservation technical services; Construction of comprehensive wiring projects, computer network system projects, equipment monitoring system projects, security prevention system projects, communication system projects, lighting, audio, broadcasting and conference system projects, smart card system projects, garage management system projects, comprehensive information system projects for property management, information display and release system projects, intelligent system computer room projects, intelligent system integration projects, stage facility system projects, urban lighting projects, electromechanical equipment installation projects, and computer management and office automation system projects; Sales of office automation equipment and communication equipment.