Continuous monitoring of patients in psychiatric seclusion rooms is essential yet challenging, particularly with staff shortages. We propose PsiMo, a remote patient state monitoring system using mmWave FMCW radar. Our system continuously monitors patient's state of motion to alert medical staff in the event of abnormal conditions, such as agitation. 

Surveillance of counterfeit powdered food products, including infant formulas, spices, and dietary supplements, poses significant threats to public health. We propose PowDew, a novel system for detecting counterfeit powdered food products using only a commodity smartphone. PowDew captures the interaction between powder and water droplets (i.e., the droplet motion) for counterfeit detection.

The low accuracy of GPS in urban areas causes significant real-world problems for shared mobility devices (SMDs), such as reduced usability for locating these devices. To address this issue, we propose RampScope, a ramp-level localization system that leverages the physical uniqueness of sidewalk ramps. RampScope utilizes a single gyroscope to capture the distinctive characteristics of sidewalk ramps and demonstrates its feasibility across three different types of mobility devices.