An Optimization Method Combining RSSI and PDR Data to Estimate Distance between Smart Devices for COVID-19 Contact Tracing

Figure 4

The experimental setup in the indoor environment. (a) The picture of the meeting room. There was a desk in the center of a meeting room. Some obstacles were on the desk, such as computers, books, and bottles of water. Point O was the start point for all designed paths, which are located at the door and (b) the schematic diagram of the experimental setup for the meeting room.

(a)

(b)