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Using the method of discrete-time stochastic extremum seeking, we design a single, scalar discrete-time forward velocity controller to navigate multiple nonholonomic unicycles to seek the source of an unknown, spatially distributed signal field simultaneously, while the angular velocities of unicycles are kept as different constants. We assume that the information of each unicycle's position is unavailable...
We study the problem of deploying a high number of low-cost, low-complexity robots inside a known environment with the objective that at least one robotic platform reaches each of N preassigned goal locations. Our study is inspired by SensorFly, a micro-aerial vehicle successfully used for mobile sensor network applications. SensorFly nodes feature limited on-board sensors, so one has to rely on simple...
A kind of battery pack of LiFePO4 was selected as the concrete study object. A kind of method was pointed out to define the energy efficiency of the battery, the constant current and pulse current of charge and discharge energy efficiency were analyzed. The results of analysis show that the charge and discharge energy efficiency are above 90%, and constant current and pulse current of charge and discharge...
Vehicle-based pedestrian detection systems play a very important role in the field of intelligent transportation. However, existing pedestrian detection algorithms are too computing extensive for traditional vehicle-based processor. Considering the performance and flexibility of hardware/software co-design architecture (CPU+FPGA), it is feasible to implement these algorithms on such platforms. In...
In order to effectively decrease the cost of logistics transportation and increase its efficiency and enterprise competitiveness, a WebGIS & Web service-based logistics information system is implemented. This system not only overcomes the defects of logistic Web site's sealing property and its inconvenience in implementing sharing information, but also extends information to mobile terminals which...
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