Research on Positioning Algorithm of Forklift-mounted RFID Reader

• Main Authors: Hongjin Wang, Tingting Cheng, Zhan-Ao Wu
• Format: Article
• Language: English
• Published: IFSA Publishing, S.L. 2014-07-01
• Series: Sensors & Transducers
• Subjects: Forklift active positioning; RSSI ranging; Reflection interference; Reference tag; Positional accuracy.
• Online Access: http://www.sensorsportal.com/HTML/DIGEST/july_2014/Vol_174/P_2193.pdf
• ISSN: 2306-8515; 1726-5479

To conduct real-time and accurate positioning of the forklifts (people) and goods in the warehouse is an effective means for improving warehouse management efficiency. To this end, this article puts forward the active positioning system with the forklift installed with RFID reader and the ground passageway embedded with RFID tag. In the running process, the position of forklift can be determined through recognition of the reference tags which are embedded at both sides of the passageway based on the three-side layout at right angle principle and their RSSI value. The positional accuracy can be improved by adjusting the layout distance of those reference tags. The experimental results show that this system can realize the positioning function of forklift, and it can be used in practical situations.