A building management system (BMS) is a computer-based control system installed in buildings that controls and monitors the building’s mechanical and electrical equipment such as ventilation, lighting, power systems, fire systems, and security systems.
A BMS typically consists of several subsystems that are each responsible for monitoring and controlling specific devices or groups of devices within the overall system. For example, one subsystem might be responsible for monitoring and controlling the building’s HVAC (heating, ventilation, and air conditioning) system while another subsystem might be responsible for monitoring and controlling the building’s lighting system.
The term “building management system” can also refer to the software used to operate the BMS. This software is typically installed on a computer or server located within the building. The software is used to monitor the status of the various devices and systems within the BMS and to control those devices and systems according to pre-determined conditions or rules. Building management systems are becoming increasingly important as buildings become more complex and energy costs continue to rise. By centrally controlled efficiency can be increased while operating costs are decreased.