US Patent 9958198 Embedded cargo sensors for a refrigeration system

A method and system for use with a volume containing a cargo having a thermal mass includes, at least one temperature sensor associated with the cargo to provide at least one temperature associated with the thermal mass, a refrigeration unit associated with the volume, and a controller to control the refrigeration unit in response to the at least one temperature associated with the thermal mass and a temperature set point, wherein the controller models a temperature characteristic of the thermal mass.