A survey on networked control systems (NCSs), published in a previous paper, is updated and extended. simple framework some general formulations for the study of NCSs are proposed. In addition to NCSs, impact traditional large-scale system methodologies with related application also reviewed.

To maximize the revenue from selling energy, photovoltaic systems (PVs) in general operate so-called maximum power point tracking mode. However, increasing penetration of renewable energy sources has motivated design innovative control to provide ancillary services. The focus this paper is develop a new strategy that enables PVs adjust active outputs and frequency regulation systems. In strategy, two different modes are designed: 1) droop mode for primary support systems, 2) emergency...

This technical note deals with the design of mode-dependent H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">∞</sub> filters for a class discrete-time switched systems nonlinearities. In this systems, when system mode changes, filter designed specific subsystem also switches accordingly. The main contribution is on use information sojourn probability-the probability staying in each subsystem-to build new kind model additional available. Sojourn...

X-ray images of castings are widely used in manufacturing for quality assurance. This article investigates the X-ray-image-based defective detection. The main contributions this twofold: first, a new full-image method is proposed to classify and nondefective ones; second, by combining two technologies, spatial attention mechanism bilinear pooling deep convolutional neural networks (CNNs), CNN enhance representation power CNN. To validate above initiatives, extensive experimental studies have...

To maximise the economic benefit, photovoltaic (PV) systems in general operate so‐called maximum power point tracking (MPPT) mode. However, certain occasions (e.g. a microgrid or weak system), it is beneficial for PV system not to always MPPT mode, but occasionally dispatch because of top priority maintaining stability. this end, Newton quadratic interpolation‐based control strategy proposed iteratively obtain required terminal voltage by approximating power–voltage characteristic curve with...

This paper investigates robust stability analysis and stabilization of delay uncertain systems approximated by a Takagi-Sugeno (T-S) fuzzy model. An innovative approach is proposed to develop delay-dependent criteria the systems, which makes use less-redundant information construct Lyapunov function, employs an integral equation method handle cross-product terms, alleviates requirements bounding technique model transformations that have been popularly adopted in many existing references....

This paper investigates a new modelling and control issue: the tracking problem of underactuated dynamic systems by using special example – pendulum-driven cart-pole system. A model system is firstly presented. Then, six-step motion strategy proposed. After that, desired profile pendulum joint velocity developed based on proposed strategy. The position acceleration can be computed profile. closed-loop approach partial feedback linearization technique. Finally, extensive simulation studies...

This paper proposes novel randomized gossip‐consensus‐based sync (RGCS) algorithms to realize efficient time calibration in dynamic wireless sensor networks (WSNs). First, the unreliable links are described by stochastic connections, reflecting characteristic of changing connectivity gleaned from WSNs. Secondly, based on mutual drift estimation, each pair activated nodes fully adjusts clock rate and offset achieve network‐wide synchronization drawing upon gossip consensus approach. The...

An IoT wristband for basketball shooting analysis, which can provide quantitative guidance players in a convenient, low-cost manner, was developed. A micro inertial measurement unit (IMU) sensor-based used to collect the motion data of 20 with different levels skills: 15 amateur and 5 elite players. The 247 mm <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${}\times {}20$ </tex-math></inline-formula> {}11$...

The traditional basketball training is unable to be quantified and shared with others for it heavily relies on the coach's experience. In this paper, we develop an inertial measurement unit (IMU) collect movement data of player identify his postures, which helps improve guidance athletes' skills in a quality manner. Additionally, IMU sensor designed recognize nine kinds basic movements, such as stand, walk, run, jump, in-situ dribble, dribble while walking, running, set shot, jump shot....

We here investigate the secure control of networked systems developing a new dynamic watermarking (DW) scheme. First, weaknesses conventional DW scheme are revealed, and tradeoff between effectiveness false data injection attack (FDIA) detection system performance loss is analyzed. Second, we propose scheme, its capability interrogated using additive distortion power closed-loop system. Furthermore, FDIA analyzed auto/cross-covariance signals, where positive correlation intensity measured....

This paper investigates the simulation of distributed wireless networked control systems (WNCS) over mobile ad-hoc network (MANET). The model includes multiple plants with a single controller and random node mobility. widely used software optimised engineering tool (OPNET) has been utilised to implement realistic signal propagation using path loss fading effects. System performances for two routing protocols: DSR AODV have explored.

Recently there is a great research interest in networked control systems (NCSs). The intended contributions of this study, the order they are presented, (a) to point out major limitation current studies on NCSs: many theoretical results – although important and have some significant technical merit cannot be applied distributed therefore little application value; (b) contrast that simple numerical examples often linear widely used demonstrate results. authors study NCS controller design for...

As a special case of consensus on non-linear spaces, in this study coordinated attitude motion control for group rigid bodies is investigated second-order systems Lie SO (3). By introducing an auxiliary variable each body, the distributed controllers are designed so that left-invariant coordination asymptotically achieved and total at least locally achieved. Simulation results multi-agent system consist four show effectiveness proposed design.

This paper deals with the modelling and control for wind turbine combined a battery energy storage system (WT/BESS). A proportional-integral (PI) controller of pitch angle is applied to adjust output power WT, method scheduling presented maintaining state charging (SOC) BESS. When level below lower limit, we increase expected through raising operation point charge battery. Considering effect charging/discharging, switched linear model two equilibriums firstly such WT/BESS system. The region...