Abstract: An antenna is provided for satellite communication configured to be mounted in horizontal corrugated recesses of freight container doors. The antenna case has a front side whose vertical dimension is less than or equal to a front recess gap size of 14.5 cm, tapering to a back side vertical dimension of less than or equal to a back recess length of 7 cm, and a case depth of less than or equal to a recess depth of 3.3 cm. The antenna includes a patch layer and a transmission line layer, wherein the patch layer comprises a 2×2 patch layout, giving antenna gain greater than 0 dBi for 0 to 60 degrees above the horizon.
Abstract: Methods and systems are provided for determining an active response during cold treatment of refrigerated cargo during shipment of a refrigeration container. Steps include: receiving a set point adjustment protocol for modifying set points of a refrigeration controller of the refrigeration container; during a period of active response operation, receiving temperature signals from a plurality of temperature probes located in the refrigeration container; determining that one or more of the received temperature signals exceeds a temperature threshold defined by the set point adjustment protocol; determining that a temperature trend of the one or more of the received temperature signals meets a trend trigger of the set point adjustment protocol; and, responsively to the temperature threshold and the trend trigger, transmitting a set point change command to the refrigeration controller.
Abstract: Methods and systems are provided for monitoring a refrigerated cargo container in real time including receiving sensor signals from a plurality of sensors that include one or more of a temperature sensor, a humidity sensor, and a pressure sensor; and processing the sensor signals to identify one or more signal characteristics that correspond to predefined patterns, wherein the predefined patterns are correlated to one or more container conditions including at least one of an open door, a container load level, and a cargo type.