Development of FPGAbased logic controller for a kind of posture aligning system of rigid bodies

HE Danqing, LI Jiangxiong
(Department of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China)

Abstract: In order to solve the problems of logic controlling in large components posture alignment system, such as the reliability of drive circuit, the stability of hydraulic and pneumatic, the error handling of the system, the logic controller based on field programmable gate array(FPGA) was designed and realized. The configuration design of the controllers hardware including processor module, inputandoutput module, power module was focused on. Meanwhile, logical control programming was also realized using VHSIC hardware description language(VHDL). The application result shows that the logic controller is reliable, easy to maintain, suitable for digital electronic control system of complex logical relationship.
Key words: posture alignment system; logic controller; field programmable gate array(FPGA); VHSIC hardware description language(VHDL)