Research On Hoisting Safety Monitoring System Of Long-Boom Crane

Long-boom crane is one of indispensable large transport machinery in engineering construction and accident rescue. It can reduce labor intensity and save manpower resources effectively. However, long-boom crane safety accidents caused by improper operation or overload have been concerns of the industry. Thus, the research on long-boom crane safety monitoring and protection technology is of great practical significance. Combined modern electronic technology with embedded system technology, a design about hoisting safety monitoring system of long-boom crane based on ARM processor and Windows CE operating system is proposed in the paper. The main research contents are the following:1. The main reason of long-boom crane overload damage during hoisting is analyzed. Based on the force situation of crane boom, a corresponding mathematical model is established and a method which can calculate the real lifting weight of the long-boom crane is achieved.2. Through analyzing the long-boom crane lifting characteristic table by regression analysis method, a regression analysis model is established to calculate the rated lifting weight of the long-boom crane, which can provide judgment basis for the safety monitoring.3. The requirement analysis of the hoisting safety monitoring system of long-boom crane is carried on, which provides the basis for system hardware design based on the ARM processor S3C2440A. The circuit implementations of the master control module, the input/output signal conditioning module and the power management module are also elaborated in the paper.4. Windows CE operating system architecture and the development method of a stream interface driver are discussed. The functionality of the application of the monitoring system is analyzed based on the concept of modular design. According to design requirements of the system, a Human-Computer interaction interface is also developed.5. A test platform of the monitoring system is built to test the key circuit module, the running state of the operating system and the overall performance in the lab environment. The experimental results verify the feasibility of the safety monitoring system.