We propose an electromagnetic-based braille display that can represent two-dimensional information. The key principle is a flip-latch structure, which allows satisfying requirements of both protrusion force for recognition and low power consumption. A magnet-inserted has eccentric shape, driven by flips over the protruded voice coil pushing pin. Then it acts as latch to lock maintain pin without additional energy manufacture modules arrange them into with total 192 pins (16 columns 12 rows)....

This paper presents a small and lightweight tactile display system describes its capabilities with respect to spatial temporal feedback. Each module is comprised of 4times4 piezoelectric ultrasonic actuator array resolution 1.5 mm 20 Hz. The objective this research build such that the system, including modules complete controller parts, will be wearable by user. It was found developed can both information less power consumption.

Astrictive-type grippers, which generate gripping forces from adhesive at the contact surface such as suction cup, are popular end-effectors picking solutions because of their simplicity and small working space. However, force astrictive gripper decreases with increasing complexity object surface; thus, its application has been restricted to simple objects a flat surface. Here, we present an all-round honeycomb that orthotropic tension for grasping highly irregular shaped uneven The design...

One of the main problems robot manipulations by using bio-signal interface is discontinuous position control. This discontinuity causes undesirable effects on users such as lack accuracy and an overall degraded performance. paper presents control strategy for continuous 1 DOF manipulator electromyography (EMG) signals. We designed system which makes possible that replicate wrist movements estimating joint angle continuously from EMG signals measured four muscles. In order to estimate angle,...

This paper proposes an electrical parameter estimation method for permanent magnet synchronous motors (PMSMs) considering the voltage source inverter (VSI) nonlinearity. Accurate parameters are essential high-performance control of PMSMs. Therefore, numerous studies have been conducted to obtain accurate parameters. However, VSI nonlinearity causes distortion, which parameter-estimation errors. To address this problem, presents a solution using double-frequency double-amplitude (DFDA)...

In this paper, we present a robotic surface display that physically imitates the orientation of virtual 3D geometry touched through 2D flat screen. The proposed approach renders such users can tactually obtain <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">relative</i> geometric information, which plays significant role in process real-world haptic object perception. Taking advantage planar aspect touch surfaces, system constructs rotation...

In this paper, we present an intelligent system that is capable of estimating the status a player engaging in winter activities based on sequence analysis multivariate time-series sensor signals. Among activities, paper mainly focuses downhill sports such as alpine skiing and snowboarding. Assuming mechanical vibrations generated by physical interaction between ground surface ski/snowboard motion can describe conditions playing contexts, utilize inertial vibration signals to categorize...

Predicting the nonlinear torsional stiffness of harmonic drives is important not only for system control but also further development drive. However, it difficult to predict because elastic deformation flexspline and many contacts involved. Furthermore, dynamic contact simulations between components drive are disadvantaged by high computational burden convergence problems. To address these challenges, we establish a flexible multibody modeling process using augmented formulations floating...

Touch screens are rapidly penetrating our daily life. Even general users enjoying various applications such as drawing sketches and playing games with their mobile phones. In particular, the improvement of graphics capabilities large display now allows easy access at any location to 3D environments including games, animation, augmented reality that were formerly limited desktop environments. screen devices have distinct features compared previous phones: is widened device mainly operated...

Handheld virtual reality (VR) controllers are necessary for creating immersive experiences. In this paper, we propose a gated RNN-based sequence model that estimates the joint torques of serially linked handheld VR system interface from sequential position input. our previous study, proposed motion planning algorithm articulated systems based on active contour optimizes positions each torque measured base (6-Degrees Freedom). Because position-to-position scheme, which calculates given...

As the gestural interface is emerging as one of key interfaces for mobile computing, ability these to provide physical feedback becoming more important. Especially in context interacting with a virtual world, generating proper important when seeking engage users simulated world. However, due inherent size problems mechanical structures and power issues, most handheld devices relied on vibrotactile feedback. To resolve this issue, paper proposes haptic module that can represent realistic...

This paper proposes a sensor substitution system that generates time-series data via recurrent neural networks (RNN)-based sequence analysis to regress virtual sequence. More specifically, the proposed estimates capacitive touch signals by exploiting tiny motion and audio generated touch. The was validated in supervised learning task which multiple sensors-specifically, an omnidirectional microphone, accelerometer, gyroscope, sensor-were employed. multivariate temporal information of input...

This paper addresses the role of tactile feedback in touch-based interaction. The focus was on touch interaction a surface as natural method and surface-transmitted feedback. is an extension previous research involving pin-array based displays. For impulses or vibrations, both piezoactuator solenoid were utilized. A user can perceive discernable through proposed actuators manner that differs from existing vibration motors. Psychophysical results also reveal low-frequency vibrations be used...

In this paper, we describe media that can provide a physics engine with predefined object information. Once the descriptors are embedded into an image as metadata via technique hides information, information be decoded for construction of rigid body during rendering. manner, user interact and obtain sensory feedback from in world constructed single proposed image.

This paper presents a new miniature haptic display to convey ample information user of handheld interface. There are buttons on interfaces or general electronic devices, but existing provide feedback only one passive pattern user. Because humans perceive tactile and kinesthetic simultaneously when they handle objects the proposed actuator provides both sensations at once. It is able generate various levels pressing button under diverse situations. Also, vibrotactile can be delivered for...

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

In this paper we propose a method that produces 2D image can self-contain physical information such as the object geometry. To associate additional with digital images, employed steganography exploits low sensitivity of human beings to high-frequency brightness variations. With proposed method, images have its own tactility. The main advantage over previous information-handling methods is resultant format remains compatible an ordinary image. For example, if original PNG file, resulting...