The subway depot as a vehicle parking, inspection, maintenance, use and repair of the management center location, a total of 14 parking lanes, considering its large space, high floor height, its upper part is provided with ventilation system, respectively, fresh air system and exhaust system, in which the exhaust system can be used as a smoke prevention and exhaust system at the same time. The parking garage is equipped with 15 exhaust/smoke exhaust two-speed fans, which are usually exhausted at low speed, and 28 new fans are set up to supply fresh air to the area.
The on-site fans are installed at high places, which are difficult to maintain and run for a long time every day, so it is necessary to install vibration sensors to predict fan failures months in advance, and measure the vibration amplitude (root mean square value of velocity) according to the ISO 10816 standard, which can evaluate the health status of the equipment, repair it early, and give timely alarms