Multi-function Crane Safety Monitoring System

Under the study of the crane security monitoring system at home and abroad, an advanced multi-functional security monitoring system for crane is developed, which takes advantage of the technology progress in the fields such as electronic, computer, sensing and controlling. The system not only performs the general functions such as detecting, controlling, alarming and so on, but also possesses LCM interface to report parameter and working conditions, and the black-box module to record the history data of overload state.To perfect the function of the system, improve the advances, and guaranty the credibility, CAN bus is adopted, which makes it possible for users to add units(CAN monitoring module) dynamically to meet different needs, without the least changes of the system's hardware. The monitoring system is made up of eight smallest units, one smart unit, and one main unit. The smallest unit is to sample signals, perform A/D function, and send them to the main unit using CAN bus. Finished processing the received data, the main unit displays the result, and sends out controlling signalsThe design idea, the total scheme and the correlative basal knowledge of the hardware and software of the main unit and smallest unit are discussed, and some key sections are analyzed in detail.