Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2008-05-27
2008-05-27
Crosland, Donnie L (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S425500, C340S572100, C340S003600, C340S005920, C235S384000, C235S385000, C705S022000, C705S028000
Reexamination Certificate
active
07378960
ABSTRACT:
A WPAN system for establishing communication between a control station of a cargo vessel and a plurality of containers that are loaded onto the vessel is provided that comprises a base station configured to establish and manage a pre-configured WPAN having a hybrid tree-mesh network topology and a plurality of electronic tracking devices each being provided with a WPAN-enabled radio receiver/transmitter and routing capabilities. The base station is configured to communicate with the control station through a local area network on the vessel. Each tracking device is configured to be joined to a respective container of the plurality of containers and to connect to the WPAN upon being activated. The base station is configured to intermittently perform a network scan to locate each tracking device that is connected to the WPAN and dynamically reconfigure the network topology to include each tracking device connected to the WPAN to maintain mutual communication with each connected tracking device using the routing capabilities of the tracking devices.
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Binding Carl
Dolivo Francois B.
Hermann Reto J.
Husemann Dirk
Schade Andreas
Cantor & Colburn LLP
Crosland Donnie L
International Business Machines - Corporation
Klett Peter
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