1. A mobile RFID portal, comprising: an RFID reader mountable to a mobile asset/vehicle; a motion sensor coupled to the mobile asset/vehicle, the motion sensor detecting movement of the mobile asset/vehicle; a communicator, mountable to the mobile asset/vehicle, coupled to the RFID reader, the communicator actuating the RFID reader to read identifications of proximately located RFID tagged items, receive the read identifications, and communicate the received read identifications over a wireless interface; and an interface for connection to the motion sensor, the communicator actuating the RFID reader to read identifications of proximately located RFID tagged items a first time in response to an indication received from the motion sensor that the mobile asset/vehicle is moving and a second time after the mobile asset/vehicle has moved a predetermined distance.