摘要
针对GPS接收机因卫星信号遮挡而无法定位,设计了一款应用于集装箱码头叉车定位及控制的GPS定位控制器,并对其软硬件进行了设计。控制器利用车辆速度脉冲、倒车信号以及陀螺进行航位的推算,结合转锁控制就可提供连续的车辆位置及速度信息。试验表明,该GPS定位控制器实现了对叉车的精确控制,使实际推算的精度最优,极大地降低了因停车而造成的误差累计,提高了控制器的智能化水平。
In accordance with the fact that it is unable for GPS receiver to implement positioning because of satellite signals being kept out,the hardware and software of the GPS positioning controller can be used for forklifts in container dock are designed.By adopting vehicle＇s speed pulse,backward signal and gyroscope,the reckoning is accomplished;and by combining with the wristlock manipulation,continuous information about the position and speed of the vehicles can be provided.The tests indicate that this GPS positioning controller implements precise control for forklifts,and optimizes the calculation accuracy;thus the accumulated error because of vehicle parking can be reduced,and the intelligent level of the controller is enhanced.
出处
《自动化仪表》
CAS
北大核心
2011年第3期76-79,共4页
Process Automation Instrumentation
