  The popularity of online shopping has challenged the existing express
tracking. How to provide customers with reliable and stable express tracking
has become one of the important issues that express companies need to solve
now. The current stage of courier tracking is not ideal in challenging
environments such as mountain roads, tunnels and city centres. Therefore, the
project aims to overcome the challenging environment and achieve stable express
tracking, and proposes the Ya'an scenario and conducted multiple experiments.
We show that opportunistic DTN-aware protocols are feasible solution for trucks
to maintain stable communication in challenging environments, and nodes
maintain extremely high message delivery rates and average delays that can
maintain communication.
