Freight tracking method and freight tracking system

摘要

Each driver and each station are provided with a PDT 1a, 1b, . . . , and a freight collecting station (2), a relay station (3), a delivering station (4) and a center (5) are connected together via a dedicated line (6) to send point information Pi to each station. Every time point information Pi is sent from PDTs 1a, 1b, . . . , these computers transfer it to the center (5) over the dedicated line (6), send point information Pi to a web server (11) from the freight collecting station (2), the relay station (3) or the delivering station (4), and provide point information Pi in conformity with an access request from cell phones (8), user personal computers (9) and personal computers in sales offices (10).