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As Wireless Sensor Network (WSN) has been widely accepted, the network is expected to be applied to environmental measure in yards and gardens. Because stable electric power supply is not available in environmental measure, WSN is generally powered by battery. Improving energy efficiency is important in order to extend operation time of WSN. On the other hand, in actual environmental measure, values...
Imaging of hydrogen gas concentrations were demonstrated using arrayed sensors system in the cylindrical diffusion tank-shaped simulator. The field effect transistor type hydrogen sensors with platinum gate electrode were used. The sensitivity of the sensors was around -34.1 mV/dec. and the response time was 1.2 sec. in average. By applying a sensor drive circuit to each sensor, the diffusion processes...
This paper describes a telescopic-arm type, climbing support robot. Although there are various kinds of wall climbing robots, there is a possibility that they may fall, due to the wall concavity/convexity or insufficient adhesion. To solve this problem, we developed the wall climbing support robot, which uses a telescopic-arm to support the climbing robot. The telescopic are includes a joint with...
To gather varied information about surrounding environment in more detail, a computer should handle a large number of sensors. It is, however, difficult to realize such a system by conventional sensor-to-computer interface. We propose a common bus interface to connect those sensors to a host computer. This interface is composed of serial data bus with power supply and link layer communication protocol...
In this paper, we propose adaptive control of robotic embodied entrainment to multi communication participants. That is based on communication activity measurement, and uses interaction timing learning which depends on nonverbal communication channels. Our mechanism selects an appropriate embodied robotic behavior, and increases the communication activity by changes of a speaker and a listener. For...
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