智能控制算法在打桩机系统中的应用

Application of intelligent control algorithm in the piling machine system

打桩机系统工作过程中会遇到各种各样的复杂地形,为了提高自动冲孔打桩机对复杂地形的打桩能力和适应性,文中从打桩机起锤信号的处理、余绳最优控制算法及专家控制系统等方面来进行研究。采用FFT变换算法,将采集到的时域信号变换成频域信号进行分析处理,消除了杂波信号的干扰,提高了系统对起锤信号检测的稳定性。采用模糊自适应控制算法来对余绳进行研究,使冲孔打桩机控制设备根据不同的目标土层对余绳的长度进行适应性调整。采用专家控制系统,以提高冲孔打桩机对复杂地质环境的适应能力。最终通过Matlab仿真及反复实验,分析得出,文中算法和控制策略对复杂地形有很好的处理能力。

The piling machine system working will encounter all sorts of complex terrains, in order to improve the piling capability and adaptability of automatic punching pile driver for complex terrain, the paper research for piling hammer starting signal processing, the optimal control algorithm of excess rope, expert control system and other aspects. Using FFT algorithm, collected time--domain signal is changed into frequency-domain signal to analysis and process, eliminating the interference of clutter signal and improving the stability of hammer signal detection for the system .Adopting fuzzy control algorithm to research for the excess rope, making punching hammers adjust the length of the excess rope depending on the target soil. Using specialistic controlling system to improve the adaptability of automatic punching pile driver to complex geological environment. Finally,through the Matlab simulation and experiments it can be seen that the algorithm and control strategy can manage effectively the complex geological environment.