Problem
Research questions and friction points this paper is trying to address.
slope-aware
variable-admittance filter
user preferences
robotic guide dog
Understanding User Preferences of a Slope-Aware Variable-Admittance Filter for a Robot Guide Dog
🤖 AI Summary
研究通过调整斜率感知变阻尼滤波器参数，优化视障人士与导盲机器狗的力交互体验，采用高保真模拟和人类实验验证方法。
📝 Abstract
This letter investigates how the parameters of a slope-aware variable-admittance filter influence user preferences in force-based interaction with a robotic guide dog for visually impaired individuals. The proposed system consists of a quadruped robot equipped with a sensor-free rigid handle for physical guidance. The framework combines path following, momentum-based interaction-wrench estimation, and a variable-admittance filter whose stiffness and damping are adapted online from slope information extracted by the robot's depth camera. The adaptation policies are evaluated through high-fidelity simulations and a human-subject study involving blindfolded sighted participants. Multiple strategies are compared using a Taguchi L9 design of experiments. Preliminary main-effect results suggest that increasing stiffness uphill and decreasing it downhill improves both objective and subjective metrics, whereas damping shows no significant main effect.
Innovation
Methods, ideas, or system contributions that make the work stand out.
slope-aware
variable-admittance filter
stiffness adaptation
human-robot interaction
visual impairment
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