METHOD FOR TRACKING THE STATE OF A SHELF SYSTEM

摘要

A method of monitoring a load includes monitoring an initial state output signal (150) and a current state output signal (154) generated by one or more load sensors (58, 60, 62, 64) positioned about a load storage device (66). The initial and current state output signals (152, 156) are compared to determine changes in the load (68) positioned upon the load storage device (66).