Climbing manufacturing robots can create a revolutionary paradigm for large and complex components, while the motion control of climbing manipulation-oriented (CMo-Rs) is still challenging considering anti-slippage problems. In this study, CMo-R with full-scenery capability redundant load-bearing mobility designed based on magnetic adsorption. A four-wheel kinematic model slipping phenomenon established. An adaptive algorithm slip estimation using Lyapunov theory uncertain inclined planes....

Abstract A multi-objective coyote optimization algorithm based on hybrid elite framework and Meta-Lamarckian learning strategy (MOCOA-ML) was proposed to solve the optimal power flow (OPF) problem. MOCOA-ML adds external archives with grid mechanism basis of non-dominated sorting. It can guarantee diversity population while obtaining Pareto solution set. When selecting coyotes, there is a greater probability select in sparse areas, which conducive development areas. In addition, combined...

Purpose This study aims to develop a machining path posture optimization algorithm for robotic wood processing systems, integrating global smoothing metrics and local constraint metrics, refines the overall processes of pose optimization, generation interpolation, thereby enhancing efficiency. Design/methodology/approach begins by analyzing redundancy in systems provides parametric description based on five-axis linear paths from computer-aided manufacture (CAD/CAM). Global performance are...

A large variety of methods exist to estimate brain coupling in the frequency domain from electrophysiological data measured e.g. by EEG and MEG. Those are reasonable approximation, though certainly not perfectly, Gaussian distributed. This work is based on well-known fact that for distributed data, cross-spectrum completely determines all statistical properties. In particular, an infinite number normalized measures at a given function complex coherency. However, it largely unknown what...

The joint transform correlator (JTC) cryptosystem is a simple and practical optical cryptosystem. But its identical key in both encryption decryption brings security risks the distribution management. To overcome these drawbacks, we first create trapdoor one-way function based on image superposition subtraction operation. Then combined with binary phase modulation, an asymmetric JTC proposed this paper. These two kinds of functions are not only effective implementable, but also can greatly...

Abstract A large variety of methods exist to estimate brain coupling in the frequency domain from electrophysiological data measured e.g. by EEG and MEG. Those are reasonable approximation, though certainly not perfectly, Gaussian distributed. This work is based on well-known fact that for distributed data, cross-spectrum completely determines all statistical properties. In particular, an infinite number normalized measures at a given function complex coherency. However, it largely unknown...

Object segmentation is one of key issues in object based video analysis and retrieval. In this paper, a basketball algorithm proposed. The algorithms involve hierarchical detection motion tracking on adaptive model. Basketball started firstly, only when detected, the next frame. Moreover, there result evaluation module algorithm, if it true, used frame, otherwise, again. experimental results from real confirm efficiency proposed

NURBS curve parameter interpolation is extensively employed in precision trajectory tasks for industrial robots due to its smoother performance compared traditional linear or circular methods. The planning systems necessitate four essential functional modules: first, the spline discretization technique ensuring chord error compliance; second, contour scanning determining maximum feasible feed rate multi-constraint and multi-segment paths; third, achieving a smooth profile; fourth, continuous...

Stay cables are key components in cable-stayed bridges. The time-varying cable force is basis for evaluating fatigue damage of cables. This paper presents a method the real-time identification based on vibration monitoring. In this method, signal updated through sliding window technology, and Space Peak Picking (SSPP) algorithm used to adaptively determine initial frequency value target modal component. passed as parameter Adaptive Chirp Mode Decomposition (ACMD) algorithm, which identify...

High-density 3D warehousing is the future cornerstone of modern logistics storage. It aims to efficiently manage and store various types goods by utilizing space automation technology. The accurate fast docking algorithm four-way shuttles, as a core method carrying in high-density warehousing, has become an increasingly important technical challenge. Inaccurate will result failure change direction, while long time affect operation efficiency shuttle. To overcome these obstacles, this paper...

The hybrid space of robots is divided into task and joint space, with focused on trajectory-tracking accuracy, while considers dynamic responsiveness synchronization. Therefore, the robot-motion control systems need to effectively integrate both aspects, ensuring precision in trajectory promptly responding unforeseen environmental events. Hence, this paper proposes an online trajectory-generation method for spaces. In a planning approach presented high-precision NURBS curves. global curve...

It is a main direction of industrial application that manipulator performs grasping task in space and combines obstacle avoidance planning. This paper presents an improved RRTConnect path planning algorithm IRRTC based on dynamic constrained admittance control. The sliding constraints the Cartesian position used to search for reachable traction robot by algorithm. For orientation control, priori formed artificially given constraint interval, then control modified using end load moment...

Semantic object recognition is key issue in CBIR (content based image retrieval), video analysis and so on. In this paper, we discuss how to recognize the semantic - basketball. First, color feature extracted determine possible regions of basketball, then steerable filters are used extract MGE MGD, edge probability direction normal obtained from MGD. Next modified Hough transform designed circle contour. Finally, using template matching, texture for confirmation. Experimental results confirm...

The pathogenesis of atrial fibrillation (AF) is closely related to the fibrotic tissues in left (LA). Delay-enhancement magnetic resonance imaging (DE-MRI) has been widely used ablation fibrillation, which can accurately describe distribution myocardial fibrosis and postoperative scars. Combining EM algorithm, level-set graph-cut, this paper proposes a method segment scars also quantify their proportion from DE-MRI. In 4 clinical cases, our accomplish extraction heart, segmentation atrium...

In aircraft type certification, simulation system is used for airworthiness demonstration in lieu of real flight test certain scenarios, and credit needs to be taken the validate it capable representing characteristics airplane under certification. The general requirement approaches discussed. Typical tasks are analyzed, scope requirement, as well fidelity evaluation method criteria established based on correlation level defined this paper. Key elements data required by authority also figured out.

Based on the method of indirect measurement rope bearing-force by similarity force and analytic hoisting equipment' balance degree comparison difference pulling force, measured data is fed back to ground analysis terminal in real time during trial process adding auxiliary ropes without changing structure original ropes; comprehensive carried out from three dimensions force-bearing time, size velocity provide suggestions for scheme adjustment; process, real-time warning dangerous operations...