Who knows the scope of weak current management of property? Does anyone know?

Weak current company's business scope: fire protection, security, hydropower, HVAC engineering, building water supply and drainage engineering, civil aviation airport intelligent system, airport perimeter monitoring and alarm system, building equipment management system, intelligent security system, remote monitoring system, comprehensive conference system, intelligent community, intelligent system integration and building communication platform. Weak electricity is mainly different from strong electricity, and now weak electricity is mainly electrical and building weak electricity technology in electrical engineering.