Land subsidence associated with groundwater overexploitation in the Alto Guadalentín Basin (Spain) aquifer system has been detected during last decades. In this work, for first time, we propose a new point cloud differencing methodology to detect land at basin scale, based on multiscale model-to-model comparison (M3C2) algorithm. This method is applied two open-access airborne LiDAR datasets acquired 2009 and 2016, respectively. First internal edge connection errors different flight lines...

With the high penetration of renewable energy sources (RES), storage system (ESS) units have been employed as critical components to compensate for power fluctuation generated by RESs in an ac microgrid. However, it's a major challenge achieve state-of-charge (SoC) balance ESS due difference initial SoC values and varied capacities. To deal with this issue, distributed event-triggered control strategy has proposed realize among regulating virtual resistances. Compared existing methods, only...

Due to the proliferation of critical nonlinear loads in islanded AC microgrids, power quality improvement at sensitive load bus (SLB) is a challenging task. To deal with this issue, distributed event-triggered control strategy for voltage harmonic compensation proposed paper. By applying strategy, generator (DG) units can be employed way compensate SLB. As result, SLB greatly improved. In addition, suggested technique allows measured by one or several dedicated DG compensation, which...

Purpose This paper aims to present a method of color three-dimensional (3D) printing based on adherence. Design/methodology/approach First, experiments the effects 3D printings using different carriers and methods were performed. Second, specific point could be calculated through theory dimension-reducing, distribution model was transformed from 1D line corresponding with print sequence. At last, lines, which printed PE film by silk-screen printing, carried filament then fused deposition...

Considering the error accumulation problem of a pure inertial navigation system (INS) under condition satellite signal outages, this paper proposes brain-like method based on cell model hippocampus to improve accuracy and intelligence INS. The proposed employs vision acquire external perception information as an absolute reference for INS position correction, which is established by analyzing mechanism rat brain. prominent advantages presented include: (1) remarkable effect in reducing...

To cope with the volatility and randomness of wind power, photovoltaic (PV) load demands in islanded microgrid, also to ensure safety economic operation microgrid system. A collaborative Distributed model predictive control (Di-MPC) based voltage optimization strategy is proposed, which considers strong coupling characteristic active reactive power due impedance ratio requirements real-time robustness as well. By coordinating controllable devices source-grid-load side proposed aims make full...

The real-time embedded control system for the quad-rotor helicopter is designed by using commercially available components which are inexpensive with driver modified of BLDC (Brushless Direct Current) motor. These integrated into electric PCB (Printed Circuit Board) meanwhile corresponding multitasking software developed. We evaluate performance this platform in two different strategies. It showed experimental results that works satisfactorily stabilization mini hovering, proved onboard...

In order to solve the problem of low efficiency and accuracy in control process seeding robot, a vision measurement device based on ant colony algorithm nonlinear circuit system is proposed this paper. By scanning trunks areas, border crossing points bottom tree ground were detected, these divided into two clusters both sides neighbouring relationship. The simulation result compared with artificial recognition two-orchard environment. shows that method reliable, safe can satisfy moving request robot.

The traditional computer image content retrieval technology can only meet the specific requirements of customers; because its general features, it cannot comply with various environments, purposes, and time simultaneously. This study presents a method for K-means clustering algorithm (KCA). information collected by is preprocessed algorithm, unacquired labeled based on optimal learning order according to KCA. classifies color, pattern, shape, images takes advantage invariance advantages such...

This article discusses to use the search for self-optimizing stepping control algorithm, by adjusting ratio of secondary air flow and heavy oil flow, then automatically searching make it work in vicinity achieve optimized burning system.

Sky-bionic polar co-ordinate navigation is an effective means of providing navigational information in the absence a priori information. Polar during clear daytime conditions has been studied, but there lack research it at night due to problems with noise. Therefore, this paper, short-wave infrared polarimetric sensor system designed, which capable acquiring atmospheric low illumination environments night, compared traditional visible band sensors. Additionally, based on statistics...

Global synchronization analysis for complex networks with time varying coupling delay is investigated in this paper.The considered paper time-varying.Sufficient conditions depending on the are given based Lyapunov functional, linear matrix inequality and Kronecker product technique.We find that dependent bounds of both time-delay its derivative, derivative time-varying can be any value bounds.Finally, a numerical example to validate effectiveness obtained results.

In this paper, we describe the cross-correlation principle of vehicle speed measurement, and present hardware design real-time embedded measuring system for vehicles' speed. The modular programming method is used in software to complete computation signal processing display resultant data. We evaluate performance by linear rotary dial on motor. It shown experiments that automatic stable highly reliable with low cost.

The real-time DSP-based cross-correlation speed measurement system is designed by using the digital signal processor TMS320F2812 as core controller. optoelectronic devices used to detect of cross correlation, which processed wide-band amplifiers and low-pass filters. Meanwhile corresponding embedded multitasking software developed. We evaluate performance this measuring linear rotary dial on motor. It showed experimental results that works satisfactorily in stabilization, proved stable...