This is a BA renovation project, which restores the original system to normal use by adding network controller and other equipment.

The original BAS system of the shopping mall used Metas system of Johnson and Siemens control as the cold source system, but the system could not be used normally due to historical reasons. On the basis of retaining the user's original DDC controller and other hardware, we add a network controller, provide Web services, and the user can remotely monitor the original device through the new system.