A more natural means of communicating complex movements to a robot manipulator is where the copies human hands. This paper presents markerless human-robot interface that incorporates Kalman filters (KFs) and particle (PFs) track posture method allows one operator control dual manipulators by using his/her double hands without any contact devices or markers. The algorithm employs Leap Motion determine orientation position Although can be obtained from sensor, measurement errors increase over...

This paper presents a real-time remote robot teleoperation method using markerless Kinect-based hand tracking. Using this tracking algorithm, the positions of index finger and thumb in 3D can be estimated by processing depth images from Kinect. The pose is used as model to specify robot's end-effector. provides way send whole task instead sending limited motion commands like gesture-based approaches has been tested pick-and-place tasks.

With the development of Industry 4.0, robots tend to be intelligent and collaborative. For one, can interact naturally with humans. another, work collaboratively humans in a common area. The traditional teaching method is no longer suitable for production mode human-robot collaboration. Since processes are complicated, they need highly skilled staffs. This paper focuses on natural way online teaching, which applied tasks such as welding, painting, stamping. presents an fusion speech gesture....

The aim of this paper is to propose a novel markerless human-robot interface, which derived from the idea that manipulator copies movements human hands. With method, one operator could control dual robots through both his or her hands in contactless and environment. In order obtain position orientation real time, sensor called leap motion (LM) employed paper. However, because tracking errors noises sensor, measurement increase with time. Therefore, interval Kalman filter (IKF) improved...

Abstract The order-disorder transition (ODT) of A 2 B O 7 compounds obtained enormous attention owing to the potential application for thermal barrier coating (TBC) design. In this work, influence ODT on mechanical and thermophysical properties dual-phase high-entropy ceramics was investigated by substituting Ce 4+ Hf with different ionic radii B-sites (Zr ). X-ray diffraction (XRD), Raman, transmission electron microscopy (TEM) results show that $$r_{\rm{A}^{3+}}/r_{\rm{B}^{4+}}=1.47$$...

Robot calibration is a useful diagnostic method for improving the positioning accuracy in robot production and maintenance. An online self‐calibration based on inertial measurement unit (IMU) presented this paper. The requires that IMU rigidly attached to manipulator, which makes it possible obtain orientation of manipulator with real time. This paper proposed an efficient approach incorporates Factored Quaternion Algorithm (FQA) Kalman Filter (KF) estimate IMU. Then, Extended (EKF) used...

Purpose The purpose of this paper is to provide a novel methodology based on two-level protection for ensuring safety the moving human who enters robot’s workspace, which significant dealing with problem security in human-robot coexisting environment. Design/methodology/approach In system, anyone working space detected by using Kinect and their skeletons are calculated interval Kalman filter real time. first-level mainly prediction motion, used Gaussian mixture model Mixture Regression....

In the current environment, rapid innovation has become an essential source of time-based competitive advantage. Based on theory organizational information processing, this work explores effects virtual integration product speed in a environment. Samples Chinese manufacturing enterprises provide evidence study. The results show that different degrees vary. Among them, sharing plays active role speed, which is weaker highly effect knowledge collaboration positive and becomes stronger also...

The first innovative Visible Infrared Imaging Radiometer Suite (VIIRS) sensor aboard the Suomi National Polar-orbiting Partnership (SNPP) satellite has been in operation for 10 years since its launch on 28 October 2011. second VIIRS Join Polar Satellite System (JPSS-1) 4 18 November 2017, which became NOAA-20. Well-geolocated and radiometrically calibrated Level-1 data records (SDRs) from are crucial to numerical weather prediction (NWP) Level-2+ environmental record (EDR) algorithms...

Abstract Dynamic shear in the axial direction of a rotor was vertically superposed on melt flow direction, and its effects rate strength were investigated theoretically. Polypropylene/high‐density polyethylene blends microcellularly foamed with different vibration parameters. The experimental results compared those theoretical analysis, dynamic foamability ultimate cell structure analyzed detail. showed that increased an increase amplitude frequency. enhanced could effectively restrict...

The first NOAA/NASA Join Polar Satellite System (JPSS-1) satellite was successfully launched on November 18, 2017, becoming NOAA-20. Instruments on-board NOAA-20 include the Visible Infrared Imaging Radiometer Suite (VIIRS). This instrument is second build of VIIRS, with flight NASA/NOAA Suomi National Polar-orbiting Partnership (SNPP) operating since October 2011. purpose these VIIRS instruments to continue long-term measurements biogeophysical variables for multiple applications including...

Human-robot interaction is necessary in remote teleoperation of robot manipulators, especially when the environment unstructured and objects are unfamiliar. In traditional interactive methods using contacting mechanical devices, motion operator restricted unnatural. While camera-based tracking has benefit being non-contact, previous vision-based approaches have used only few degrees freedom for hand required motions that unnatural object manipulation tasks. This paper presents a non-contact...

Purpose – The purpose of this paper is to provide a hybrid adaptive impedance-leader-follower control algorithm for multi-arm coordination manipulators, which significant dealing with the problems kinematics inconsistency and error accumulation interactive force in system. Design/methodology/approach This utilized motion mapping theory Cartesian space establish centralized dynamic leader-follower helped reduce possibility multiple manipulators. A virtual linear spring model (VLSM) was...

Purpose – The purpose of this paper is to present a markerless human–manipulators interface which maps the position and orientation human end-effector (EE, center palm) those robot EE so that could copy movement operator hand. Design/methodology/approach tracking system comprises five Leap Motions (LMs) not only makes up narrow workspace drawback one LM but also provides redundancies improve data precision. However, because native noises errors LMs, measurement increase over time. To address...

The objective of this paper is to develop a novel human-manipulator interface which incorporates wearable-based and markerless tracking interact with the continuous movements human operator's hand. Unlike traditional approaches, usually include contacting devices or physical markers track human-limb movements, enables registration natural movement through wireless wearable watch leap motion sensor. Due sensor error failure, measurements are not made sufficient accuracy. Two Kalman filters...