公开(公告)号：US10316849B2

公开(公告)日：2019-06-11

申请号：US15519685

申请日：2014-10-15

Applicant: GRUNDFOS HOLDING A/S

Inventor： Flemming Munk ,  Casper Lyngesen Mogensen ,  Jan Carøe Aarestrup

IPC: G06F19/00 ,  F04D15/00 ,  F04D13/06 ,  F04D29/046 ,  F04D29/66 ,  G01H17/00 ,  F04D29/043 ,  G01M99/00

Abstract: A method for detecting faults or operational parameters in a pump assembly by use of a handheld communication device is described. The pump assembly includes an electric motor and a pump, wherein the pump assembly or electric motor has at least one rotating shaft The method comprises the steps of: a) contactless measuring a sound signal emanating from the pump assembly by use of a microphone connected to or implemented in the handheld communication device, b) processing the measured sound signal, and c) recognising one or more sound emanating condition including any possible faults by way of the processed sound signal.