Dropping out this time is the track athlete who won over fans in Beijing: Jamaican Usain Bolt, who sprinted to three world records at the Games and has continued breaking them since.

Bolt parameters of the track tunnel were simulated by using the finite software ANSYS in order to provide a theoretical basis for designing support parameters.

Based on the flexible array sensors, using hierarchical design and inside-bolt linking structure, we developed the mobile digital-track and its system software.