In this brief, we focus on the offline route planning of unmanned aerial vehicle (UAV) for coverage search mission in a river region. Given prior likelihood distribution area importance, brief aims to generate UAV feasible routes which maximize cumulative probability finding single and stationary target within required time. First, Gaussian mixture model is used approximate distribution, several segments with high detection corresponding components can be extracted. With consideration...

This paper presents a trajectory planning approach for cable-suspended parallel mechanisms. A planar two-degree-of-freedom mechanism is used the analysis. Based on dynamic model of suspended robot, set algebraic inequalities obtained that represents constraints cable tensions. Parametric Cartesian trajectories are then defined and substituted into in order to obtain global conditions parameters which ensure feasible. Special frequencies arise from equations akin natural pendulum-type...

Abstract Multi‐layer electrical interconnects are critical for the development of integrated soft wearable electronic systems, in which functional devices from different layers need to be connected together by vertical interconnects. In this work, electrohydrodynamic (EHD) printing technology is studied achieve multi‐layer flexible and stretchable electronics direct as interconnect accesses (VIAs) using a low‐melting‐point metal alloy. The EHD printed metallic interconnection represents...

Stretchable electronics based on nanomaterials has received much interest recently. However, it is challenging to print 1D (e.g., nanowires) with high resolution stretchable elastomeric substrates. Electrohydrodynamic (EHD) printing been used such as silver nanowires (AgNWs) substrates, but the and electric conductivity of printed patterns are typically low because poor wettability ink surface This paper reports a systematic study two modification methods, UV–ozone treatment dopamine...

Abstract Compliant pressure sensors are a key technology for wearable electronics and haptic interfaces. Making transistors pressure‐sensitive provides an opportunity to combine sensing matrix readout characteristics. However, there is typically trade‐off in sensitivity, complexity of fabrication, mechanical resilience. To overcome these challenges, all solution‐processed kirigami‐inspired stretchable organic thin film transistor (OTFT) based sensor array introduced. The OTFTs integrate...

Abstract Scalable manufacturing of soft electronics with high performance and reliability represents one the most demanding challenges for application electronics. Herein, an ecofriendly silver nanowire (AgNW) based ink cellulose as binder is reported. The properties, annealing condition, electromechanical properties printed are investigated. With a proper process, hot‐melt under temperatures provides excellent adhesion between NWs substrate, leading to robust electrical AgNWs mechanical...

Abstract The demand of cost‐effective fabrication printed flexible transistors has dramatically increased in recent years due to the need for interface devices various application including e‐skins, wearables, and medical patches. In this study, electrohydrodynamic (EHD) printing processes are developed fabricate all components polymer‐based organic thin film (OTFTs), source/drain gate electrodes, semiconductor channel, dielectrics, which streamline procedure OTFTs. with...

Abstract The generation of electronic waste (e‐waste) poses a significant environmental challenge, necessitating strategies to extend electronics’ lifespan and incorporate eco‐friendly materials enable their rapid degradation after disposal. Foldable electronics utilizing offer enhanced durability during operation degradability at the end life cycle. However, ensuring robust physical adhesion between electrodes/circuits substrates folding process remains leading interface delamination...

To realize online rapid measurement for complex workpieces, a flexible system based on an articulated industrial robot with structured light sensor mounted the end-effector is developed. A method calibrating parameters proposed in which hand-eye transformation and kinematic are synthesized calibration process. An initial first performed using standard sphere as target. By applying modified complete parametrically continuous method, we establish model that combines distal link whole...

In this paper, power system transmission network planning is formulated as a multi-objective mathematical optimization problem. context, three objectives: investment cost, reliability and environmental impact are considered in the optimization. To overcome drawbacks of conventional method arriving at local optimum dimension disasters, etc., we introduced particle swarm (PSO) technique into optimal for first time, from which scheme generated. A case on problem presented to show methodology's...

To solve the problems of large landing impact, vibration, and poor adaptability to complex ground surfaces in motion a foot-type robot, two-degree-of-freedom flexible foot-end structure was proposed designed this study. The effects materials, parameters, structural forms on performance foot end have been discussed. Through simulation experimentation, parameter analysis mechanical calibration were completed, experiment robot designed. experimental results showed that has uniform reliable...

In this paper, a novel global optimization algorithm has been developed, which is named as particle swarm combined with generator (PSO–PG). PSO–PG, PG was introduced to iteratively generate the initial particles for PSO. Based on series of comparable numerical experiments, it convinced that calculation accuracy new well its efficiency greatly improved in comparison those standard It also observed results obtained from PSO–PG were almost independent some critical coefficients employed...

Human following of mobile robots has been popularized in the scientific field service-oriented research. However, behavior such is passive most cases. Compared to a robot, framework for an anticipative front robot proposed which based on technology Kinect camera and identification human sensing motion system. The real-time data collected by applied into walking model after median filtering. designed identifying four basic behaviors accurately. Then predicted using optimized Kalman filtering...

STriDER (Self-Excited Tripedal Dynamic Experimental Robot) is a novel three-legged walking machine that exploits the concept of actuated passive dynamic locomotion to dynamically walk with high energy efficiency and minimal control. Unlike other machines, this unique tripedal robot inherently stable its tripod stance, can change directions, relatively easy implement, making it practical be used for real life applications. begins step stance like camera tripod. As center gravity shifts...

A comparative study on the pick-and-place trajectories for high-speed Delta robots is presented in this paper. The Adept Cycle has been widely accepted as a standardized trajectory industrial robots. blending curves and optimization methods to smooth are briefly surveyed. Three major types of trajectories: Lamé curves, clothoids piecewise polynomials, selected candidates be compared. processes generate these reviewed. firstly compared term their computation time. Then, based dynamic model an...

This paper presents a position tracking controller for underactuated autonomous surface vessels. An asymptotically stable model-based control algorithm is proposed vessels based on sliding mode approach since it capable of handling large parameter uncertainties, unmodeled dynamics, and disturbances. A simple three-degree-of-freedom planar model vessel presented with two actuator inputs providing surge yaw motions. Two surfaces are defined the vessel’s errors. first order in terms velocity...

In this paper, integrated preventive maintenance planning and production scheduling for a single machine is formulated as multi-objective mathematical optimization problem. Despite the inter-dependent relationship between them, decisions are generally analyzed executed independently in real manufacturing systems. This practice also found majority of studies relevant literature. The chaotic particle swarm optimization(CPSO) algorithm proposed to solve model planning. numerical results on...

The line maintenance plan has always been drawn only by experiences and trials due tothis work's difficult. There exist many disadvantages. In this paper Analytic hierarchy process (AHP), an effective method that can solve a multiple criteria objective decision-making problems was introduced to the power lines scheduling. Firstly AHP model built up on base of analyzing correlative factors. Then example given indicate how apply.

This paper presents the forward and inverse displacement analysis of a novel three-legged walking robot Self-excited Tripedal Dynamic Experimental Robot (STriDER) in its triple stance phase. STriDER utilizes concept passive dynamic locomotion to walk, but when all three feet are on ground, kinematic configuration behaves like an in-parallel manipulator. To plan control change posture, kinematics must be analyzed. First, this unique tripedal gait discussed, followed by overall definitions...

This paper addresses the orientation-singularity and orientationability analyses of a special class Stewart–Gough parallel manipulators whose moving base platforms are two similar semi-symmetrical hexagons. Employing unit quaternion to represent orientation platform, an analytical expression representing singularity locus this in six-dimensional Cartesian space is obtained. It shows that for given orientation, position-singularity cubic polynomial platform position parameters, position, but...

Intelligent mobility platform with active spoke system (IMPASS) is a novel wheel-leg hybrid robot that can walk in unstructured environments by stretching or out three independently actuated spokes of each wheel. This form locomotion has the potential to combine efficiency wheeled and legged robot. A highly mobile such as IMPASS could prove very valuable applications where terrain complex dangerous, search rescue, reconnaissance, anti-terror response. video presents experiments findings...