A Research On Management Information Engineering Of City Water Supply

The management level and the automatic information engineering of water supplying system of a city play important roles in the urban economic development and its people's living standard and quality. At present, the research on the cities'water supplying management and automatic information engineering is far from mature, which is what we focus in the thesis.To begin with, by making use of the successful experience of international water supplying management, and based on the study of our city's water supplying management, this thesis puts forward an alternative pattern to reform the Chinese cities'water supplying management, and studies the system architecture and design scheme of water management information engineering based on the amount of water consumption prediction by chaotic time sequence modeling. Then, the measuring techniques and pricing methods of urban water supply are advanced.The main contents and contributions of this thesis are as follows:1. The theories of urban water supplying management information engineering are specifically reviewed. A comparatively systematical positivist results are obtained based on the analysis of many industrial cases.2. The present situation is systematically analyzed, and the management system and the existing problems of our cities'water supply are evaluated. Then we put forward the alternative pattern to reform the Chinese cities'water supplying management according to the characteristics of urban water supply.3. The chaos theory is used to model and predict the amount of water consumption of a city. Based on the concept of quasi nearest border, the best embedding index and time delay, we reconstruct the time sequence, and compute the largest Lyapunov exponent (LE) of a time sequence. Experiments are done on the two man-made neural network structures based on the predictable measure [1/LE] of input neural centre and the embedding index m [m:2m:m:1], and the results illustrate that the latter neural network structure can offer better predictions.4. We provide a macroscopic model of the working ability of water supplying network, and present the corresponding way of constructing the model. A more economic and practical dispatching decision-making model is built to support the decision-making in the water supplying system of a whole city. A simplified mathematical dispatching decision-making model is constructed to control the routine operation of the water supplying system.5. By making use of the technologies of the geographical information system, the global satellite locating system, and the decision-making support system, the urban water supplying management information system are designed, and has been put into practice.6. The mathematical relation of water measuring-pricing is constructed on the platform of urban water supplying management information engineering. We put forward the idea that the China should adopt the pricing pattern of"regulative binary form"as the strategy of water measuring and pricing.