A method and system for the detection, notification and tracking of cargo theft proposes to install, inside cargo to be protected, a tracking device having communication and dead reckoning capabilities. As long as the tracking device senses that it is within a virtual fence generated by an access point,...http://www.google.co.uk/patents/US20050017899?utm_source=gb-gplus-sharePatent US20050017899 - System and method for cargo protection
