The large-scale grouping of the battery system leads to inconsistency pack. Aiming at tacking this issue, an evaluation method is deployed for pack based on improved Gaussian mixture model (GMM) and feature fusion approach. Specifically, proposed adaptive forgetting factor recursive least squares (AFFRLS) algorithm allows open-circuit voltage other parameters be jointly identified without open circuit voltage-state charge (OCV-SOC) test. An online capacity estimation approach with extended...

The multispectral information, including both visible information and infrared can describe the detection target in a comprehensive manner. deep learning (DL)-based detectors that fuse features detect pedestrians robustly various environments. Therefore, this paper puts forward robust feature fusion network (MSFFN) for pedestrian detection, which fully integrates extracted from light channels. Specifically, multiscale semantic were by two core modules, namely, extraction of images (MFEV)...

In view of the shortcomings Probabilistic Roadmaps (PRM) in case narrow passages, an improved method based on optimal sampling strategy is proposed. By dense area obstacles, points distributed inside obstacle are selected and uniformly sampled by distanced, so that point generated around free area, thereby increasing number passages. The simulation results show PRM has more passages than standard PRM. And time path planning, success rate length also significantly improved.

VANET is the concrete application of wireless and mobile ad-hoc network in this automotive environment. Because frequent changes topology, fast node, heavy routing overhead other reasons, it's very uneasy to contrive a effective protocol layer for statistics among vehicles. existing Routing protocols which have existed about are little significant impact simulate all kinds traffic scenarios. Therefore, design competent has been more extraordinary meaning. This thesis putted forth whose name...

Abstract Because of uncertain random noise and unknown disturbance, the observer‐based inverter fault diagnosis meets problems large deviation current observation value high false alarm rate. An open‐circuit method is proposed via residual performance evaluation. Firstly, interval sliding mode observer constructed by combining with observer. Three phase estimates are obtained residuals calculated. Secondly, indicators calculated using evaluation function. The detection derived comparing...

This paper proposes a method for retired batteries based on SOC consistency matching. takes the of battery pack as standard, which calculates model parameter matching relationship to optimize performance pack. Based Thevenin equivalent circuit model, mathematical lithium ion is established and parameterized. Additionally, reconfiguration criterion proposed reveal mapping between cell parameters consistency. Finally, are identified by recursive least squares (RLS) algorithm select two groups...

Both torque ripple and current harmonics are enlarged due to single-phase open-circuit fault of five-phase permanent magnet synchronous motor (FPMSM). Based on chaotic-particle swarm, an adaptive optimization tolerant control algorithm is proposed for the FPMSM current. First, Park Clarke matrices modified in coordinate transformation process. A reduced-order decoupling matrix obtained under stator winding. Second, fault-tolerant generated with principle constant magnetomotive force. Third,...

This paper is under in-depth investigation due to suspicion of possible plagiarism on a high similarity index In order optimize the parameters fractional PID controller complex system, an adaptive particle swarm optimization (PSO) method proposed realize adjustment. this algorithm, tuning population divided into three subgroups firstly, and through introducing swarm-aggregation degree factor evolution speed particle, dynamically adjusting inertia weight size respectively, setting find...

According to the characteristics of staggered flyback photovoltaic grid-connected inverter topology, a new control strategy is proposed. The in interleaved critical continuous mode, single mode and inverse. alternating intermittent operation alternates between work. suitable for each power level inverter, can also improve efficiency at quality current. principle analyzed, relation expression reference signal current derived. feasibility verified by PSIM simulation software.

An improved YOLOv5 surface floating object detection algorithm is proposed to solve the problems of low accuracy and slow speed in objects on water surface. Firstly, smooth label introduced suppress over-fitting phenomenon training process network model. Secondly, inception topology used enhance feature extraction objects, under premise ensuring accuracy, number parameters amount calculation are maintained. Finally, loss function optimized improve prediction frame regression. Experimental...

The bionic robot fish has the characteristics of high mobility, concealment, efficiency and low noise, which can play an important role in military strategy underwater detection. In view complicated environment influence uncertain factors, active disturbance rejection controller (ADRC) automatically compensate internal external controlled object model, improve control accuracy stability robotic path tracking. this paper, model is firstly established based on kinematics nonlinear rigid body...

Sewage treatment system is a complicated nonlinear with multi-variables, chemical reaction, biological process and altered loads, hard to describe mathematically. Thus prediction of the effluent quality sewage plant through mathematical model has being challenge. In this paper we adopts regression support vector machine (SVM) set up popular cyclic activated sludge (CASS). Kernel function radial basic function, parameters kernel are optimally determined by cross-validation. Then used predict...

The multi-joint robot fish is often subject to unknown external and internal disturbances during path following in water areas. In this paper, a control method based on active disturbance rejection (ADRC) proposed for obtaining high-quality tracking effect. Combining the kinematics dynamics equations of three-joint fish, model error established Serret-Frenet coordinate system by setting virtual mobile robot. Based introduction expectation angle, guidance forwarding steering law are designed...

Inductive power transfer (IPT) systems that are insensitive to air gaps preferable for wirelessly charging of electric vehicles (EVs) over different gaps. To fulfill this need, paper proposes a six-coil hybrid IPT system uses particle swarm optimization (PSO) maintain constant voltage output wide variation gap and load. It employs two orthogonal DD coils one quadrature (Q) coil pad structure (2DDQ) on each side achieve stable load-independent with high tolerance variation. A detailed...

This article presents a technique to carry out fault classification using an equal-angle integer-period array convolutional neural network (EAIP-CNN) process the electrostatic signal of working roller bearings. Firstly, signals were collected uniform angle sampling ensure intervals between two adjacent data points stayed same and length was fixed pre-determined number rotation cycles. Then, this one-dimensional transformed into two-dimensional matrix, where component each row in one period,...

The accuracy of relative pose estimation is an important foundation for ensuring the safety and stability autonomous aerial refueling (AAR) unmanned vehicles (UAV), in response to this problem, a method UAVs based on spatial equivalent plane proposed paper. UAV polygonal plane, according measurement information Global Navigation Satellite System (GNSS) receivers, equation solved through three-point normal vector minimum sum squares distance from four points plane. equations between geometric...

During performing multiple tasks of a redundant manipulator, the obstacles affect sequential order task areas and joint trajectories. The end-effector is constrained to visit with an optimal anti-collision path, while joints are required move smoothly avoid predefined obstacles. A special encoding genetic algorithm (SEGA) proposed for multitask-based trajectory planning. Firstly, spatial occupancy relationship between manipulator developed utilizing theory spherical enclosing box...