The environment and equipment monitoring system, referred to as BAS system for short, is an automatic monitoring system for the monitoring of relevant electromechanical equipment in stations, yards and tunnel sections of the whole subway line. It will monitor the operation status and system parameters of equipments mainly including tunnel ventilation system equipment, large station / depot ventilation and air conditioning system, small ventilation and air conditioning system, air conditioning water system equipment, water supply and drainage equipment, escalator, elevator, rolling shutter door, lighting system (including intelligent lighting system), emergency lighting power supply, section water supply and drainage, flood gate and other equipments, as well as ambient temperature and humidity parameters of station public area and equipment room.