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This paper includes the whole design and development procedure of an autonomous glass cleaning robot in Undergraduate Research on Campus (URECA) program in Nanyang Technological University, Singapore. A small glass cleaning robot was built with a controller, vacuum suction systems and servo motion systems. Fraud detecting and low battery protection system were planned.
In Finite difference method, time step-size adaptation must take decreasing calculating error and time consuming in long time simulation in consideration. Based on finite difference method, a new improved difference method was proposed to solve linear seepage flow: Firstly by Laplace transform time variable was eliminated and Laplace mathematics model was proposed, then the mathematics model was solved...
Based on the previous study and discussion, the coincidence degree theory and continuation theorem are applied to solve the existence of periodic solution to the two-dimensional time-varying delay Cohen-Grossberg in this paper. The study on two-dimension enables us to thick of a complete and clear pattern stored in memory from an incomplete or fuzzy pattern, and hence has a wide and bright application...
Automatic suitable-matching area selection is an important research in visual guidance, scene matching and local non-texture target tracking. Meanwhile, it is the major research subject in computer vision and accurate guidance. In this paper, a new characteristic quantity, i.e., the edge direction dispersion was defined. Then the computation method, parameters selection and real-time realization of...
A novel method based on optical defocus of imaging system is presented for the estimation of the depth of the 3D scene. Firstly, optical defocus is described using the oriented heat-flows equation based on curvature driven. Secondly, the depth retrieval problem is translated into the minimum problem of energy functional with total variation regularization. Finally, the gradient flow is used to seek...
In order to achieve the maximal diathermanous efficiency, this paper introduces two calculation methods about the most economical diathermanous area of the Shell and tube heat exchanger which works in two different conditions, and establishes the corresponding mathematical models.
Many applications can be formalized as dynamic problems and their main goals are to track the moving optimum. Many algorithms that address efficiently static problems, fail when applied to dynamic problems due to their inability to adapt and respond to changes in the environment. A different topology multi-swarm PSO is proposed to deal with problems in dynamic environment. The proposed algorithm integrates...
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