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19:00-19:30 Prof. Dr. Yuh-Shyan Chen Human Activity Recognition for Radar Sensor Networks The millimeter-wave radar sensor has the characteristics of being less susceptible to weather and light as well as being low cost. In addition to supporting environmental sensing functions in automatic vehicles, the millimeter-wave radar sensor can also be used for non-contact human activity recognition under any environmental conditions. Monitoring, medical care, and physiological monitoring is another effective method in addition to the sensor-based and visual-based methods. We briefly introduce the basic principles of millimeter-wave radar sensors, collect millimeter-wave signals and collect 5-dimensional information in real time, drawing distance–speed maps, distance–azimuth maps, and distance–elevation maps. We further introduce various possible effective applications of human activity recognition using millimeter-wave radar sensors. |
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19:30-20:00 Prof.Dr. Tzung-Shi Chen Object Tracking in Wireless Sensor Networks Object tracking is an important research field in the Internet of Things. Object tracking technologies can be applied in various fields, such as smart cities, smart transportation, etc. Object tracking technology includes object identification, object positioning, object tracking, and object movement management. This talk will briefly describe various object tracking technologies and applications. |
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20:00-20:30 Prof.Dr. Wen-Hwa Liao Data Collection for Wireless Sensor Networks Wireless sensor networks consist of a large number of low-cost sensors, which have been used in numerous applications such as smart living, traffic monitoring and the healthcare system. In these types of applications, collecting data from sensors is one of the most important tasks. The simplest way is multi-hop forwarding from each sensor to the sink node. However, multi-hop forwarding leads to the problem of network disconnection, which affects the network lifetime. This occurs because the sensors closer to the sink consume much more energy for data forwarding than those sensors far away from the sink. Therefore, in this talk, I will discuss the research issues of some data collection from sensors for prolonging the network lifetime. |
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20:30-21:00 Prof. Dr. Chih-Yung Chang Energy Recharging for Wireless Rechargable Sensor Networks In wireless sensor networks, sensors are tiny devices with limited battery capacity that perform sensing and communication tasks in the network. When the sensor battery is exhausted, it will not perform any task, which reduces the coverage quality of the network. Therefore, recharging the sensors before their energy exhaustion is one of the most important issues in WSNs. In this talk, an on-demand recharging scheduling mechanism using the mobile charger (MC) to recharge the sensors will be discussed. During the recharging operation, if any new sensor requests recharging, the MC can dynamically adjust its path to improve the recharging efficiency. |






