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For manipulation of remote mobile robots, adequate scheduling of tasks and selecting of operational commands are required. This paper presents an analysis procedure to make the task switching profile visible by utilizing the Self-Organizing Map (SOM) and new cluster growing method. For practical verification, an experiment system with radio-controlled construction equipments was built, and the proposed...
We investigated eye movement in a transportation task using remote control. Participants controlled two sets of joysticks to move a toy excavator and a toy truck monitoring the task process through video displays. They repeated the task ten times. At an early stage of skill acquisition, the participants tended to look at both task related objects (e.g., material to transport and the shovel) and the...
On a remote vehicle manipulation, both a task scheduling and an adequate selecting of operation commands are significant to execute sequential task successfully. Hence, for a future assistive intelligent mechatronics, automatic recognition of the operator's task-switching is required to support him / her timely. In the present research, an analysis procedure to make the task-switching strategy visible...
An innovative mechanism of a file-backup system concept is proposed. In the proposed file backup mechanism, the combination of the following technologies such as a spatial random scrambling of file data, a subsequent random fragmentation of the file, the corresponding encryption and duplication for each fragmented one by using a stream cipher code in each encryption stage, and the corresponding notification...
In order to reduce the effective dielectric constant (keff) for the 32 nm technology node and beyond, direct-CMP of a porous low-k film without a protective cap layer is required. However, the degradation of breakdown electric field (Ebd) has been one of critical issues. This study clarified that the Ebd degradation was caused by the pit defects on the surface of porous low-k film during direct-CMP...
Near-duplicate video detection is becoming a core-technology for analyzing the structure of a large-scale video archive. It, however, is naturally an O(n2) problem, where n is a value proportional to the total length of an input video stream. We have previously challenged this time-consuming task by reducing the cost required for each of the O(n2) comparisons. This paper, on the other hand, proposes...
For a future advanced machine, functions for supporting human by considering not only the situation around the machine but also the operator's skill-level are required. Therefore, an establishment of a method to evaluate the skill is expected. On the general machine manipulation, the task scheduling and the adequate selecting of operation commands are important to execute sequential task successfully...
This paper reports the development of a reliable vision-based eye-gaze detection system for an analysis of multiple users' intention and communication. Headgear design for the gaze detection, a recording system, an off-line computation, an algorithm of the gaze extraction, and its calibration method, are mentioned. Applying the proposed system to a test case, sufficient precision of the gaze detection...
In this paper, we propose an extraction method of ride comfort according to the difference of the tire by electroencephalogram (EEG). Recently, the sensory evaluation is used for development of the product. However, the sensory evaluation by a general user who doesn't have a clear standard is unstable. Moreover, ride comfort depends on the sensibility and the preference of the individual. It is considered...
This paper describes a low-cost and flexible vegetation monitoring system and compares it with traditional remote sensing systems such as airplanes and satellites. We have developed a small unmanned aerial vehicle (UAV) equipped with visible and infrared cameras for vegetation observation. This system can automatically generate widespread high-resolution mosaic image and calculate the vegetation index...
The optimal operation of a rail vehicle with on-board energy storage device minimizing energy consumption in catenary free mode is discussed in this paper. The electric double layer capacitor (EDLC) is assumed as an energy storage device because of its high power density, long lifetime and quick charge/discharge. The proposed method can determine the optimal acceleration/deceleration at each sampling...
We obtained InGaAs/AlAs double-barrier resonant tunneling diodes (DB RTDs) with very high peak current density using thin barrier and high emitter doping. The peak current density of 13 mA/mum2 with the peak/valley current ratio of 1.5 was obtained for 1.4-nm-thick barrier and emitter doping concentration of 6 times 1018cm-3. By these characteristics, oscillators with the fundamental oscillation exceeding...
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