基于单片机的起重机限载警报系统

在许多重型工业行业中，起重机在起吊大型设备、运输备件和设备检修等工作中起着关键的作用。在有些现代化生产线上起重机的作业十分频繁。因此，对其安全性、可靠性均要求很高。又由于厂房内温度高、粉尘大，起重机操作人员的作业环境恶劣。常常起重机操作受视野所限需有地面操作人员配合.起重机操作人员与检修人员的联络十分困难,这既增大了安全隐患,又使工作效率大大降低。目前起重机控制电机运行有二种方式，一种方式是利用有线方式通过键盘来控制起重机运行起重挂钩的上升、下降和停止三种运行状态。另一种方式是利用高频无线遥控方式来实现控制起重机运行起重挂钩的上升、下降和停止三种运行状态。两种方式各有优点和缺点。本文针对有线方式不足之处讨论了一种通过无线遥控方式来控制起重机的方案，主要是以单片机AT89C52为控制核心，通过超外差高频无线通讯模块为通信模块、通过PT2272芯片作为解码芯片、并通过一对继电器来控制起重挂钩电机的正反转来控制起重挂钩的上升和下降、通过霍尔传感器 44E来实现起重挂钩的限位。本文详细介绍其硬件和软件设计In many heavy industries, a large crane in lifting equipment, transport equipment, spare parts and maintenance, etc. plays a key role. In some modern production line of cranes operating very frequent. Therefore, its security, reliability, require very high. Also, because of high temperature plants, dusty, the operator of the difficult operating environment. View of crane operators are often limited by the need for operators with the ground. Crane operators and maintenance personnel to contact very difficult, it not only increases the security risks, but also so that efficiency is greatly reduced. Crane control motor current two ways, one way is to use wire running through the keyboard to control the crane's lifting hook up, down and stop the running of three. Another way is to use high-frequency wireless remote control method to achieve control of crane lifting hook of the rise and fall and stop the running of three. Two methods have advantages and disadvantages. This paper discussed the inadequacies of wire, a wireless remote control to control the crane of the program, mainly based on AT89C52 microcontroller as the control center through wireless communication module superheterodyne frequency communication module, through the PT2272 chip as the decoder chip, and through a pair of relays to control the lifting hook to control Reversible motor rise and fall lifting hook, by Hall sensor 44E to achieve lift-linked limit. This paper describes the hardware and software design. [资料来源：www.THINK58.com]

[资料来源：http://www.THINK58.com]

Tags:基于 单片机 起重机 警报 系统  [资料来源：THINK58.com]

[资料来源：http://www.THINK58.com]