This paper presents a novel system architecture for predictive road-traffic information delivery in which computing resources at the network edge and the central cloud are cooperatively used to analyze sensing data collected by vehicles on the road. In this paper, we also present the mathematical problem formulation of the proposed system architecture for ensuring that the system could successfully deliver road-traffic information at realtime without overflowed computational and network loads. The numerical examination using a real dataset and a realistic network emulator validates our system.1

An olfactory display is a device which provides various scents to a user. One of the main problems in the conventional olfactory display is the residual smell in the ambient air. To suppress the unnecessary odor emission and let an user receive comfortable amount of odor, we have developed a newly structured olfactory display based on the combination of SAW atomizer with micro dispensing valves. The odor delivery process is designed so the odor can go into the nostril only when the user sniffs it. We also developed a VR game using the device combined with head mounted display(HMD). The user can experience the clear change of scent through the developed VR game in this research demonstration.

An olfactory display is a device which provides various scents to a user. Such devices are expected to be applied to VR since olfactory stimulus influences human emotion and enhances user experience. One of the main problems in the conventional olfactory display is that the odorants emitted from the device not only reach the nose but spread into the ambient air, so that the user experience may be changed by the remaining odor. To solve this problem, we have developed a newly structured olfactory display which utilizes human respiratory action. In the method, DC fan is driven to create an odor stream in front of the nostril. Thus, odor goes through the nostril only when the user sniffs it. The odor plume generation is based on the combination of SAW atomizer with micro dispensing valve. We have fabricated a prototype, and then evaluated the waste odor emitted into the air using a commercially available gas detector. It was demonstrated that the new structure makes it possible to reduce the waste odor emission into the air compared to the conventional method.