Wireless data communications network system for tracking containers

A wireless data communications network system for establishing communication between a server and a plurality of containers that are loaded onto a cargo vessel, the wireless data communications network system comprising:

• a data communications device configured to establish and manage a pre-configured wireless data communications network having a hierarchical network topology where at least two nodes of the network have two or more paths therebetween, the data communications device being configured to communicate with the server through a local area network;
• and
• a plurality of electronic tracking devices each being provided with a wireless transceiver and routing capabilities, each tracking device being configured to be joined to a respective container of the plurality of containers and to connect to the wireless data communications network upon being activated, wherein the data communications device is configured to intermittently perform a network scan to locate each tracking device that is connected to the wireless data communications network and dynamically reconfigure the network topology to include each tracking device that is connected to the wireless data communications network such that the data communications device maintains mutual communication with each tracking device that is connected to the wireless data communications network using the routing capabilities of the tracking devices.

A wireless data communications network system for establishing communication between a server and a plurality of containers that are loaded onto a cargo vessel, the wireless data communications network system comprising:

• a gateway configured to establish and manage a pre-configured wireless data communications network having a hierarchical network topology where at least two nodes of the network have two or more paths therebetween, the gateway being configured to communicate with the server through a local area network;
• and
• a plurality of electronic tracking devices each being provided with a wireless transceiver and routing capabilities, each tracking device being configured to be joined to a respective container of the plurality of containers and to connect to the wireless data communications network upon being activated;
• wherein the gateway is configured to intermittently perform a network scan to locate each tracking device that is connected to the wireless data communications network and dynamically reconfigure the network topology to include each tracking device that is connected to the wireless data communications network such that the gateway maintains mutual communication with each tracking device that is connected to the wireless data communications network using the routing capabilities of the tracking devices;
• wherein each container of the plurality of containers is a shipping container equipped to facilitate wireless communications between one or more electronic tracking devices of the plurality of electronic tracking devices within the shipping container and the data communications network, which is external to the shipping container, and each shipping container comprises:
• a wall structure for receiving and containing items to be shipped;
• and
• a communication device, adapted for wireless communications with the data communications network, that includes a first housing component and a second housing component, the first housing component being disposed substantially exterior to the wall structure of the shipping container, and the second housing component being disposed substantially interior to the wall structure of the shipping container, the first and second housing components being secured together and forming an integrated housing structure of the communication device, the integrated housing structure extending through an opening in the wall structure of the shipping container;
• wherein,
• the first housing component defines a first hollow interior, the second housing component defines a second hollow interior, and the first hollow interior is contiguous with the second hollow interior,
• the communication device includes,
• a first antenna that is disposed within the first hollow interior and is located exterior to the shipping container, and
• first electronic circuitry that is connected to the first antenna, is disposed within the second hollow interior, and is located interior to the shipping container, the first electronic circuitry adapted to control signal reception and transmission via the first antenna for communications both with the electronic tracking devices within the shipping container, and with the data communications network, and
• the opening in the wall structure of the shipping container through which the integrated housing structure extends includes a diameter of between one-quarter and one full wavelength, inclusive, of the electromagnetic waves used to wirelessly communicate via the first antenna with the electronic tracking devices within the shipping container in accordance with the first electronic circuitry.

A wireless network system for establishing communication between a control station of a cargo vessel and a plurality of containers that are loaded onto the vessel, the wireless network system comprising:

• a base station configured to establish and manage a pre-configured wireless network having a hybrid tree-mesh network topology, the base station being configured to communicate with the control station through a local area network on the vessel;
• and
• a plurality of electronic tracking devices each being provided with a wireless network enabled radio receiver/transmitter and routing capabilities, each tracking device being configured to be joined to a respective container of the plurality of containers and to connect to the wireless network upon being activated,
• wherein the base station is configured to intermittently perform a network scan to locate each tracking device that is connected to the wireless network and dynamically reconfigure the network topology to include each tracking device that is connected to the wireless network such that the base station maintains communication with each tracking device that is connected to the wireless network using the routing capabilities of the tracking devices.