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Speed profile design and tracking control are two important issues to ensure the performance of the automatic train operation system. Aiming to realize the maximum optimization probability of train running, this paper constructs an integrated optimal method through speed profile design and fuzzy PID controller design. In the recommended speed profile design, three typical running strategies are included in the proposed comprehensive scheme to extend solution space, and the constructed train performance simulation is combined with NSGA-II algorithm to solve such multiobjective problem. As for recommended speed profile tracking, in order to improve the tracking performance of the train, which is a nonlinear system, a fuzzy PID controller is designed to adaptively adjust PID gains. Note that multiple indicators of punctually, energy consumption, stopping accuracy and comfort are all considered in the integrated design. Taking Beijing Subway Line 8 as the numerical example, the results show that the design of speed profile and fuzzy PID controller are both effective, and energy consumption saves about 10.40% with other better indicators compared with the original data.

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This paper proposes a system for 3D facial caricature synthesis in the interactive mode. In our system, three steps are involved: The first step is to construct a 3D facial caricature database involving in head and facial components. The second step is to define the diverse styles for each facial component using clustering method. The last step is to personal caricature designing by replacing various facial components. The main feature of our system is that it can produce easily expressive 3D caricature just needing some simple operations, such as clicking the mouse button. And the result of experiments show it is convenient and efficient to create vivid caricature by personalized designing way. We also build it successfully into a Maya plug-in, which may be applied widely because there are large numbers of users of Maya.

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