Sensor optimization arrangement multi-criterion decision analysis method for water supply network leakage detection and identification

The invention provides a sensor optimization arrangement multi-criterion decision analysis method for water supply pipe network leakage detection and identification, which comprises the following steps: step (1): taking a joint information entropy as an optimization target, screening initial positions of sensors by adopting a hierarchical algorithm to obtain initial positions of a group of sensors, evaluating different numbers of sensor arrangement schemes according to the information gain of the sensor network, and selecting to obtain a group of sensor arrangement initial schemes; step (2), according to a leakage detection target, defining a group of sensor arrangement optimization criteria for performing performance evaluation on a sensor arrangement scheme; and evaluating various sensor arrangement initial schemes based on an MCDA method to obtain an optimal scheme meeting various preference scenes of a decision maker. According to the method, fuzziness and uncertainty possibly existing in model input are