With the rapid development of Internet Things, smart home which regarded as one main application domains, obtained more and people's attention. In this paper, characteristics disadvantages system are analyzed. Then a based on B/S(Browse/Server) module is introduced. Through publishing household wireless sensor network data to web page remote server, users can control devices conveniently remotely. Its architecture, hardware design implementation approach given. This provides flexible...

Rotor eccentricities are one of the common faults in electrical machines. The influence closed-loop vector controller on electromagnetic characteristics Fractional-Slot Permanent Magnet Synchronous Machine (FS-PMSM) with rotor is explored. Firstly, distortion air-gap flux density introduced by analyzed, and harmonics caused calculated. Secondly, fundamentals back electromotive force (EMF) FS-PMSM studied based harmonic analysis. Finally, combined three-phase back-EMFs voltage equation,...

Abstract Multi-path routing, a routing technique that enables data transmission over multiple paths, is an effective strategy in achieving reliability wireless sensor networks. However, multi-path does not guarantee deterministic transmission. This because more than one path available for transferring from the source node to destination node. A hybrid algorithm proposed industrial mesh networks improving and determinacy of transmission, as well effectively deal with link failures. The adopts...

Background Modelling is a crucial step in background/foreground detection which could be used video analysis, such as surveillance, people counting, face and pose estimation. Most methods need to choose the hyper parameters manually or use ground truth background masks (GT). In this work, we present an unsupervised deep (BG) modelling method called BM-Unet based on generative architecture that given certain frame input it generates output corresponding image - more precise, probabilistic...

Health, Safety and Environment management system (HSE) is a general of international oil gas industry. In order to comply with HSE system, an air quality monitoring researched based on ZigBee wireless sensor technology, which applied in industrial sites. The includes: detecting terminal, router, gateway, software field devices equipment; the can measure variety parameters, such as: CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub>...

The rotor eccentricity fault will cause the electric vehicle (EV) drive machine to generate unbalanced magnetic pull (UMP) and torque fluctuation. It may induce more complex dynamics behavior endanger safe reliable operation of system. In this article, three spoke-type interior permanent magnet synchronous machines (IPMSMs) with different armature winding structures, which are integer-slot double-layer distributed winding, fractional-slot concentrated four-layer star–delta (Y–...

The author first briefly introduces the background of OPC technology and its data access specification. An server for intelligent network adapter LonWorks is then detailed presented, including architecture, how to implement it test result.

The 3D chromatogram generated by High Performance Liquid Chromatography-Diode Array Detector (HPLC-DAD) has been researched widely in the field of herbal medicine, grape wine, agriculture, petroleum and so on. Currently, most methods used for separating a need to know compounds' number advance, which could be impossible especially when compounds are complex or white noise exist. New method extracts from directly is needed. In this paper, new separation model named parallel Independent...

SUMMARY Path diversity of different concurrent paths inevitably introduces out‐of‐order packet delivery, which leads to unnecessary retransmissions and a severely lowered data throughput. In order analyze the fundamental behavior influencing factors reordering, several sets simulation‐based multipath experiments are conducted with aggregating paths. addition, relationship between reordering number discussed. Furthermore, an end‐to‐end measurement study in transfer is presented. To simply...

In order to separate a high‐performance liquid chromatography with diode array detector (HPLC‐DAD) data set chromatogram peaks and spectra for all compounds, separation method based on the model of generalized Gaussian reference curve measurement (GGRCM) algorithm multi‐target intermittent particle swarm optimization (MIPSO) is proposed in this paper. A parameter θ constructed generate r ( ) peak its physical principle. The GGRCM calculate fitness ε every , which indicates possibility...

This paper reports a new three-dimensional autonomous chaotic system. It contains six control parameters and three nonlinear terms. Two cross-product terms are respectively in two equations. And one square term is the third equation. Basic dynamic properties of system investigated by means theoretical analysis, numerical simulation, sensitivity to initial, power spectrum, Lyapunov exponent, Poincaré diagrams. The affected variable also analysed. Finally, simulated circuit. results verify...

The goals of wireless sensor networks (WSNs) are to sense and collect data transmit the information a sink. Because nodes typically battery powered, main challenges in WSNs optimise energy consumption prolong network lifetime. This paper proposes centralised clustering algorithm termed minimum distance that is based on an improved differential evolution (MD-IDE). new combines advantages simulated annealing determine cluster heads (CHs) for minimising communication WSN. Many simulation...

This paper develops a self-biased magnetoelectric (ME) composite Metglas/H-type-FeNi/PZT (MHFP) of H-type magnetization-graded Metglas/H-type-FeNi fork and piezoelectric Pb(Zr,Ti)O3 (PZT) plate. By using the magnetostrictive layer symmetrical structure, giant ME coupling multi-peak phenomenon are observed. The zero-biased voltage coefficient MHFP reaches ∼63.8 V/cm Oe, which is ∼37.5 times higher than that traditional FeNi/PZT laminate. output has good near linear relation with Hac...

Induction motor required continuous running frequently comes with reclosing process due to interrupted supply in power frequency. However, large current and torque of the incidentally appear process. The paper firstly analyzes dynamic induction machine at time absence presence stator residual voltage. Then, calculation model voltage rotor period from after reclosing, has been established three-phase stationary reference frame. In order reduce impact instant, effect phase difference on...

In order to simplify arithmetic operators and avoid tough calculating iron loss, vector control for induction motor neglects loss in engineering. However, neglecting decoupling of is not realized exactly, which declines the performance system. With development parameter identification, can be identified real-time accurately. The paper founds equivalent circuit mathematic model considering analyzes influence characteristics Based on a proposed has been presented. method realizes torque flux...

Foreground/background (fg/bg) classification is an important first step for several video analysis tasks such as people counting, activity recognition and anomaly detection. As the case other Computer Vision problems, advent of deep Convolutional Neural Network (CNN) methods has led to major improvements in this field. However, despite their success, CNN-based have difficulties coping with multi-scene videos where scenes change multiple times along time sequence. In paper, we propose a...

The foreground segmentation method is a crucial first step for many video analysis methods such as action recognition and object tracking. In the past five years, convolutional neural network based have made great breakthrough. However, most of them pay more attention to stationary cameras constrained performance on pan–tilt–zoom (PTZ) cameras. this paper, an end-to-end deep features homography transformation fusion (HTFnetSeg) proposed surveillance videos recorded by PTZ kernel HTFnetSeg,...

This paper proposes a separation method, based on the model of Generalized Reference Curve Measurement and algorithm Particle Swarm Optimization (GRCM-PSO), for High Performance Liquid Chromatography with Diode Array Detection (HPLC-DAD) data set. Firstly, initial parameters are generated to construct reference curves chromatogram peaks compounds its physical principle. Then, General (GRCM) is designed transform these scalar values, which indicate fitness all parameters. Thirdly, rough...

The separation technologies of 3D chromatograms have been researched for a long time to obtain spectra and chromatogram peaks individual compounds. However, before applying most the current methods, number compounds must be known in advance. Independent Component Analysis (ICA) is applied separate without knowing compounds' advance, but existence noise component results makes it complex computation. In this paper, parallel model constrained by 5-parameter Reference Curve (pICA5pRC) proposed...

In order to get good dynamic performance, induction motor adopts constant rated flux for vector control in servo system. However the has lower efficiency especially at light load. If controlled with adjustable maximum efficiency, its performance can not meet demand of The research is solve mutual conditionality rapidity and high efficiency. A regulator been added control. It by speed requiring torque, timely adjusts keep simulation results a case verify validity feasibility proposed approach.

AbstractPhysical programming is effective in multi-objective optimization since it assists the designer to find most preferred solution. Preference-function-based physical (PFPP) abandons weighted-sum approach and its performance generating Pareto solutions susceptible transformation of pseudo-preferences. With aim integrating a into well-distributed solutions, weight-function-based (WFPP) method has been proposed. The forms weight function for each normalized criterion uses variable...

The determinism, reliability and related technologies are analyzed as the fundamentals to apply Ethernet SCADA system. Two modes of application introduced, a practical example is given discuss some key such system configuration, implementation communication software design an OPC server in detail.

In order to separate a 3D chromatography, which is generated from High Performance Liquid Chromatography-Diode Array Detector (HPLC-DAD), into chromatograms and spectra, we proposed model called parallel Independent Component Analysis constrained by Reference Curve (pICARC), transforms the separation problem multi-parameter optimization issue. Then, A new algorithm named multi-areas Genetic Algorithm (mGA) developed search multiple solutions in parallel. It was demonstrated that our approach...

The paper has probed into the torque ripple of brushless DC motor fed by square wave. For main caused electromagnetic factor, equation two-phase been deduced. Then considering manufactured technique motor, an improved design for reduction presented with simplified and feasible proposition. And a case simulated dynamic finite element method. simulation results indicate that effectively reduces motor.