Abstract: Methods and systems for controlling the collection and storage of data are described. In general, the system includes a human-machine interface (HMI), and the HMI includes an interface that is configured to receive and connect with an external device. Generally, the methods and systems involve the use of an external storage device that can store, for example, collected data and/or analyzed data.

Abstract: An air cargo container temperature control system and method utilizing multiple refrigeration circuits and a controller that activates one or more of the refrigeration circuits in various modes to maintain temperature control. Each of the refrigeration circuits comprises a compressor, a condenser, and an evaporator all in fluid communication to form each refrigeration circuit. Additionally, heating elements are positioned in an evaporator cell for heating load space air and/or defrosting evaporator coils. The system is also provided with a battery pack having a transformer and battery chargers for charging corresponding battery cells by transforming power from an external source. The method compares a measured temperature to a set point temperature and activates one or more refrigeration circuits depending on the temperature difference.