The actual load is compared to four limit values, and by achieving the limit value, the relay of the crane controller could be switch.
实际的装载量靠近极限值的同时，又不断与四个极限值相比较。起重机控制电容可以作为开关。
Crane operation of the various agencies to rely on the program control device to achieve, and now more than the use of a crane to control the programmable controller.
起重机各机构的运行要依靠程序控制装置来实现，现在起重机多使用可程序控制器来控制。
As to the horizon motion system of Bridge Crane is a nonlinear, variation parameter and strong coupling system, the nonlinear PID controller is used for positioning and anti-swing.
针对桥式吊车水平运动系统是一个非线性、变参数、强耦合的对象，采用非线性PID控制器进行定位和防摆控制。仿真实验结果表明，系统具有良好的动态、静态特性和强的鲁棒性。
Programme logic controller (PLC) has the function of mighty control, analog signals transaction and mathematics compute, it insure that PLC can be used on the crane moment limiter.
可编程控制器(PLC)具有强大控制、模拟量处理和数学运算等功能，使其能够应用于起重机力矩超载保护中。
In this paper, an energy-based adaptive controller is designed for an overhead crane system.
本文针对桥式吊车系统提出了一种基于能量分析的自适应控制器。
Extensive simulations have shown that fuzzy expert controller has better control performance than classical cascade feedback controller in the gantry crane control.
仿真结果表明，模糊专家控制器在行车控制中比串联反馈控制器各项控制性能好。
This paper introduces rebuilding electric control system of portal crane drived by DC and the application of digital DC speed controller, PLC and touchable industrial graphic monitoring system.
简要介绍直流驱动的门机电控系统改造，包括数字式直流调速器、PLC和触摸式工业图形监控系统的应用。
This paper introduces rebuilding electric control system of portal crane drived by DC and the application of digital DC speed controller, PLC and touchable industrial graphic monitoring system.
简要介绍直流驱动的门机电控系统改造，包括数字式直流调速器、PLC和触摸式工业图形监控系统的应用。
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