UBC’s Building Management System (BMS) is a network of computer-based controllers connected to various mechanical heating, ventilation, and air conditioning (HVAC) systems in the buildings across campus. The BMS controls building environments and is a critical component of UBC’s energy efficiency and conservation efforts.
What the BMS Does
Also known as the Building Automation System or Direct Digital Control system, the BMS controls the HVAC equipment to maintain temperature and air flow set points, with input from an array of sensors installed throughout each building. The system provides graphics-based monitoring, instant feedback on real-time conditions, trending and alarming for the systems and environment that it controls.
The BMS system at UBC is comprised primarily of control systems from vendors such as Siemens, Delta/ESC and Johnson Controls Inc. (JCI). The BMS network consists of approximately 4,700 Siemens controllers, 1,430 Delta/ESC controllers and 1,260 Johnson controllers.
Saving Energy Through the BMS
We’re continuously exploring ways to save energy through the BMS. Straightforward measures include using UBC’s room scheduling service to program the BMS and only heat and cool rooms when they’re occupied.
Another innovative measure is being developed and implemented in collaboration with UBC researchers. Using location information from Wi-Fi connected devices, we can estimate building occupancies, and use this information to control the operation of a building’s HVAC system. This initiative allows us to match the energy needs of a space with the amount of energy delivered, and to reduce the overall energy consumption on campus.