“…The AmbienBeat system from Choi and Ishii applies tactile feedback based on heart rate sensing for rhythmic biofeedback regulation [12]. In the context of umbrella-based interaction, prior research has explored various interactive technologies to improve sensory experiences, focusing mainly on raindrop energy conversion and remote haptic sharing [19,31,46], sound modality based auditory space [19,30], and visually, using the umbrella surface as an Internet-enabled interactive screen [10,41,45], etc.. However, we are not aware of any somaesthetic experiences that have tried to down-regulate an individual's feeling of discomfort when using the umbrella.…”