A wireless tracking system is applied to (i) provide
real-time visibility of assets and stock, (ii) improve supply
chain management, (iii) monitor the progress of assembly
lines, (iv) identify operational and logistic pinch points, (v)
improve production planning, and (vi) reduce stock level. A
ZigBee network is developed to support the communications
among sensor nodes. ZigBee works in the license-free and
globally available 2.4 GHz bandwidth, based on IEEE