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This paper develops a hierarchical sliding-mode controller (HSMC) to simultaneously accomplish velocity control and balancing control for a two-wheeled self-balancing vehicle (TWSBV). Based on the derived TWSBV model, two first-level sliding surfaces, relevant to velocity and position of TWSBV and tilt angle and tilt angular velocity of TWSBV respectively, and a second-level sliding surface, are defined...
This paper proposes a robust chattering-free sliding-mode (CFSM) control for an electronic throttle (ET) system in drive-by-wire vehicles. Although boundary layer method is used in traditional linear sliding-mode based-electronic throttle control systems to remove control chattering, both the tracking precision and control robustness are affected. The uniqueness of the proposed CFSM controller is...
Developing and studying modern radio systems is hardly possible without the creation and research of their mathematical models. This paper discusses a complete MATLAB model, including the formation, transmission and reception of the Earth's surface and atmosphere images, obtained by low-orbit meteorological satellites in the digital low-rate picture transmission (LRPT) format. Using models enables...
In combination of the characteristic of the network architecture of wireless multimedia sensor networks (WMSNs), a distributed multi-node cooperative network (DMCN) model is designed by using the concept of in-network processing to improve their energy, memory and computational power. To balance the energy consumption of the network, according to roles division, camera nodes and common nodes are cooperated...
The spray and wait protocol is a classic copy-limited spraying protocol in delay tolerant networks, in which, the binary spray mode can be improved for heterogeneous delay tolerant networks. In this article, a new conception of node activity was defined to weigh the importance of nodes in aspect of message dissemination in the whole network. A new spray and wait protocol with node activity was proposed...
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