There is provided a method and apparatus that monitors and records the
status and cargo inventory of a shipping container. The shipping
container includes a container control unit that records and monitors the
status and inventory particular to that container. Sensors are provided
within the container to determine the container status. A piezoceramic
actuator provides power to rechargeable batteries in the container
control unit. Thus the container includes a self contained power source.
A bridge control unit monitors and records the status and inventory of
every container on a vessel. A remote control unit monitors and records
the status and inventory of every container worldwide.