Interactive modular sensor system for indoor skydiving wind tunnels

An interactive modular sensor system for an indoor skydiving wind tunnel. The system comprises a plurality of nodes arranged around the flight chamber of the wind tunnel. The nodes have at least one sensor and at least one light source. The sensors are configured to detect user movement within the flight chamber. The light sources are configured to change appearance between at least two indicator states. A network connects the plurality of nodes. A program coordinates the activity of the nodes, whereby each of the nodes may be individually controlled. The program may include various modes with different user objectives and rules. Users are directed to perform or not perform actions by the light source indicator states of each node, and the sensor monitors for the occurrence of such actions. Information from multiple systems may be compiled in an inter-tunnel system. Other aspects of the system are also described.