Pipeline leakage detection method based on accelerometers

The invention relates to a pipeline leakage detection method based on accelerometers, and the method comprises the steps that a plurality of accelerometers are arranged above a pipeline at equal intervals, the readings of the accelerometers disposed on the pipeline are collected, the readings are collected every T seconds, and a standard deviation is calculated; K minimum standard deviations within delta t are measured in a leakage-free state, an average value of the K minimum standard deviations is taken, and the average value is defined as a minimum detection index MI0; the detection index MIj of the given signal at the time j is divided by the lowest detection index MI0 in the leakage-free state to determine a value MIE named as a detection efficiency index; for different pipelines, a decision tree model is established through a Rapid Miner 7.4 model development platform, a most perfect decision tree model is established through cross validation, and MIE thresholds for identifying various leakage states ar