A PID Positioning Controller with a Curve Fitting Model Based on RFID Technology
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Abstract
The global positioning system (GPS) is an important research topic to solve outdoor positioning problems, but GPSis unable to locate objects accurately and precisely indoors. Some available systems apply ultrasound or opticaltracking. This paper presents an efficient proportional-integral-derivative (PID) controller with curve fitting model formobile robot localization and position estimation which adopts passive radio frequency identification (RFID) tags ina space. This scheme is based on a mobile robot carries an RFID reader module which reads the installed low-costpassive tags under the floor in a grid-like pattern. The PID controllers increase the efficiency of captured RFID tagsand the curve fitting model is used to systematically identify the revolutions per minute (RPM) of the motor. Wecontrol and monitor the position of the robot from a remote location through a mobile phone via Wi-Fi and Bluetoothnetwork. Experiment results present that the number of captured RFID tags of our proposed scheme outperformsthat of the previous scheme.
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Chen, Y.-L., & Chen, Z.-R. (2013). A PID Positioning Controller with a Curve Fitting Model Based on RFID Technology. Journal of Applied Research and Technology, 11(2). https://doi.org/10.1016/S1665-6423(13)71540-2
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