Study on Location Method of Multi-objective Large-scale Water Supply Network Monitoring Points
The traditional water supply network monitoring point location method can only detect the low negative pressure status of the monitoring point,but cannot determine the low negative pressure value of the monitoring point,which makes the monitoring point visual area small and the risk area large.Therefore,a multi-objective large-scale water supply network monitoring point location method is designed.By calculating the water pressure value of each monitoring point and the maximum positive elevation difference between the monitoring point and the previous monitoring point,the low negative pressure of the monitoring point is determined.Based on the three fitness functions of pressure monitoring,flow monitoring and water quality monitoring,the fitness function of multi-objective large-scale water supply network monitoring site selection is further designed.According to the change rate of water pressure,the water demand influence matrix of the monitoring point location model of water supply network can be obtained,and the monitoring point location model of water supply network can be established according to the water demand influence matrix.Monitoring points should cover all parts of the water supply network,considering the geographical distribution of the water supply network,local socio-economic conditions and water supply service requirements,so as to complete the location of multi-objective large-scale water supply network monitoring points.The experimental results show that the design of multi-objective large-scale water supply network monitoring site selection method,the monitoring point selection area is large and the risk area is small,which proves that the design method is good and has certain research value.