Air pressure detection system for electric infusion pump and method thereof

The invention provides an air pressure detection system for an electric infusion pump and a method thereof, and the system comprises a pressure sensor which is used for monitoring a to-be-detected airpressure environment, the pressure sensor is connected to an ADC module through a filter circuit, the ADC module is connected to an MCU, and the filter circuit is a five-order Butterworth filter circuit. According to the air pressure detection method provided by the invention, N continuously obtained sampling values are used as a queue T, the length of the queue is fixed to be N, new data adoptedeach time is put into the tail of the queue, primary data at the head of the original queue is removed, and arithmetic average operation is carried out on the N data in the queue to obtain a new filtering result. The air pressure detection system of the electric infusion pump based on the field of medical apparatus and instruments has the advantages that the air pressure monitoring time lag is little, the monitoring is ac