LabVIEW Based Ventilator Algorithm Design

This paper focused on the design of ventilator algorithm and Hardware-in-Loop Simulation on the LabVIEW based ventilator control system. The ventilation algorithm had a double-layer structure. The upper layer was ventilation mode algorithm, while the lower layer was PID control algorithm. They worked at different periods. The lower layer served the upper layer and to achieve the constant voltage or constant current control the upper layer required. The upper layer determined the functionality of the ventilator, while the lower layer determined the performance of the ventilator.