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Recently, welfare vehicles are widely used by patients and elders indoors, and many welfare vehicles with free casters drive indoors. However, the vehicle with free casters may not be able to move well on gravel or dirty road as seen in rural yard. In order to expand driving area for welfare vehicles, it is necessary to apply a new mechanism on the rough road. To design compact welfare vehicles for...
Nano-satellite has payload limitation to minimize weight and cost then minimum number of attitude sensors can be loaded which are sun sensor, magnetometer and gyroscope. However, The sun sensor cannot be used during eclipse, nano-satellite keeps estimating attitude with model propagator. Which contains the uncertainty, torque disturbance. For small satellite has too low moment of inertia to vulnerable...
This paper proposes an H∞ fuzzy filter for nonlinear sampled-data system. The nonlinear system is represented based on the Takagi-Sugeno (T-S) fuzzy model. An error system between the nonlinear sampled-data system and fuzzy filter is presented. Using a fuzzy Lyapunov function, sufficient conditions for showing H∞ performance of the fuzzy filter are proposed. The sufficient conditions are derived in...
In this paper, we present road boundary estimation based on laser scanner by using histogram model. For raw laser scanner data, we apply histogram model, which means that the histogram of the number of laser point is applied from a center of ego-vehicle. After histogram is made, we estimate the boundary point and select point of road boundary. We estimate selected points to clothoid model and update...
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