Pulse type flow sensor signal diagnosis method

The invention relates to the technical field of sensor detection equipment, in particular to a pulse type flow sensor signal diagnosis method, which comprises the following steps of: arranging a plurality of pulse type flow sensors, acquiring a verification flow point of a water meter and sending a verification starting signal; adjusting the pulse type flow sensor; the main laser sensor and the auxiliary laser sensor are used for recording rotation turns of the last pointer of the water meter; acquiring a pulse signal, sending the pulse signal to a frequency current conversion circuit, and converting the pulse signal into analog current magnitude; according to comparison between the real-time flow value and a preset standard flow value, whether abnormal data exist in the pulse type flow sensor or not is judged, secondary confirmation is conducted on the abnormal data of the pulse type flow sensor, and the real-time flow value signal transmission speed of the pulse type flow sensor is adjusted; and grouping th