Collision Avoidance Based on TelosB Team members: Alex Woodard David Combs ShiquLiu
Outline I. Background II. Technology Components
Background When you go turn a corner, you may be distracted by your phone! From the opposite side, a person may be doing the same thing!
Background Person 1 Corner Person 2
Background We need a device to warn us whether a person is coming from the opposite corner!
Technology Components 1.Sensing for a change in light from the shadow 2.Measuring the signal strength -- RSSI 3.Warning the pedestrians
Technology Roadmap Detectingthe shadow Disadvantage Advantage It’s easy to detect shadow The change of light may be not obvious The shadow may not project on the device
Technology Roadmap Measuringthe RSSI Advantage Disadvantage It’s widely used in indoor location, we can find with many previous studies It’s difficult to know when two people come from the same side
Proposed Setup Person 1 Warning LED Communication between devices Shadow Detection Person 2