Super efficient sorting robots help China deliver 30 billion packages a year.

Take a look inside China's largest express delivery automated sorting factory. With the help of little robots that are referred to as "Minions", the famous characters from the movie "Despicable Me", these robots are able to replace 100 workers and do the same job in just a fraction of the time. 

With a powerful system that is able to calculate the best route for the robots, out of the 300 billion options possible, the development of intelligent logistics systems in China is leading the world.