HENGTONG has launched smart building system solutions with comprehensive management of the energy efficiency as the core. All the information is integrated through establishment of communication networks, energy consumption data collection and management, power distribution monitoring, smart office and self-management of buildings, so that the solutions can be interconnected with the building construction equipment management and public security management systems. In this way, a safe, reliable, comfortable and convenient modern smart building featuring energy-conservation, environmental friendliness and economical efficiency can be created.