Ward distributed ventilation system and control method

The invention discloses a ward distributed ventilation system which comprises a distributed air supply system and a distributed exhaust system, and the distributed air supply system comprises an air supply power module, an air supply pipeline, a bed head air supply opening and a bed tail air supply opening; the distributed exhaust system comprises an exhaust power module and a vertical exhaust pipe, a lower exhaust outlet is formed in the lower portion of the vertical exhaust pipe, an upper exhaust outlet is formed in the middle of the vertical exhaust pipe, an exhaust port is formed in the upper portion of the vertical exhaust pipe, the lower exhaust outlet and the upper exhaust outlet are located in the front face of the vertical exhaust pipe, and the exhaust port is located in the back face of the vertical exhaust pipe. Meanwhile, the invention further discloses a control method of the ward distributed ventilation system. Fresh air can be respectively fed into a patient activity area and a visiting and acc