Abstract: According to one embodiment, a cargo container monitoring system includes components located on a cargo ship for collecting cargo container status information for a plurality of cargo containers. The components include at least one combination data logger and gateway device. The combination device includes a first antenna and a second antenna. The first antenna is configured to receive first wireless communications signals transmitted by a plurality of tags at a first frequency. Each tag is associated with a particular one of the cargo containers and the first wireless communications signals received from each tag include cargo container status information for the associated cargo container. The second antenna is configured to transmit second wireless communications signals to an access point at a second frequency. The second wireless communications signals include the cargo container status information received from the plurality of tags and the first frequency is different from the second frequency.

Abstract: According to one embodiment, a cargo container monitoring system includes components located on a ship for collecting status information for containers. The components include data loggers, a gateway, an access point, and a controller. Each data logger is configured to receive first wireless signals from a plurality of tags. Each tag is associated with a particular container and the signals include status information for the associated container. The gateway is coupled to a data logger and configured to receive signals from the data logger including status information. The gateway is further configured to transmit second wireless signals, the second signals including the status information. The access point is configured to receive the second signals from the gateway. The controller is communicatively coupled to the access point and is configured to receive signals from the access point including the status information. The controller is further configured to store the status information.