Optimization control method of open ore car flow

First, shortcut between electrical shovel and unloading point in road network chart is obtained through classical Dijkstra labeling algorithm in graph theory. Next, optimal values as target flow rate of loaded car flow rate and empty car flow rate on the said shortcut are obtained through linear programming model. Then, selectable loading and unloading point is determined by predicting whether queuing phenomena will happens when trucks applied for dispatching reach loading and unloading target point. According to principle of minimal saturation of target flow rate on load, a loading and unloading target point is selected. If the said all saturations of target flow rate are larger than 1, then according to minimal principle of saturation, one loading and unloading target point is selected. The method through negative feedback control and suppress interference realizes target flow rate furthest.