The Application Of Lab Windows/CVI In Inverted Pendulum Control System

The inverted pendulum system,as a high order, strong coupling, nonlinear absolute unstable system, is believed to be a challenging task in control theory and its application field for a long time.It is an experiment device for quality inspection of control strategy in automation experiments. It is so much fun doing research of the inverted pendulum system ,which has aroused great interest of the experts and scholars. At present many of the inverted pendulum system research works are based on MATLAB platform, control software is restricted. Based on the strong function of virtual instrument technology and its unceasingly expanding application domain, a new control software is adopted to study the inverted pendulum control system.Based on the hardware and software research background and its development prospects, the composition of the inverted pendulum control system and Gugao motion controller working principles are introduced in the paper, adopting the linear first-order inverted pendulum as the measurement and control object, LabWindows/CVI software as the developing platform. It also includes the analysis of inverted pendulum mathematic model and several control algorithm simulation experiment in MATLAB.It stresses three ways of using an external module to realize GT library function call in LabWindows/CVI software, and chooses the DLL technology after comparing, successfully quotes GT library to realize the inverted pendulum control and software data collection. In addition, considering the strong real-time of the inverted pendulum system and comparing the timers from Windows operating system and LabWindows/CVI, an asynchronous timer of the software is adopted to realize the control of the inverted pendulum.The idea of new software application used in classical control object not only reflectes the powerful and broad application field of the new software'Lab Windows/CVI', but it also proposes new control software into the research of the inverted pendulum system, broadens the research object applications, and saves more laboratory equipment.Meanwhile, the combination of the software and hardware technology also promotes the rapid development of control theory.