ISSN : 1796-203X
Volume : 3    Issue : 2    Date : February 2008

Hardware/Software Co-design Approach for an ADALINE Based Adaptive Control System
Shouling He and Xuping Xu
Page(s): 29-36
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In this paper, we report some results on hardware and software co-design of an adaptive linear
neuron (ADALINE) based control system. A discrete-time Proportional- Integral-Derivative (PID)
controller is designed based on the mathematical model of the plant. The parameters of the plant
model are identified on-line by an ADALINE neural network. In order to efficiently and economically
implement the designed control system, a Field Programmable Gate Array (FPGA) chip is employed
to process the measured data and generate control signals. Moreover, a microprocessor is
exploited to perform the core computation of the ADALINE algorithm. Throughout the paper, we
design and test the control system for a permanent magnetic DC motor. Our experiment results
demonstrate the effectiveness of the proposed approach. It is worth noting that the experimental
bed in the present paper can also be used as a low-cost general prototype to satisfactorily test
adaptive control systems, owing to the benefit of software and hardware co-design.

Index Terms
Hardware, software, ADALINE, FPGA, adaptive control.