An Integrated Monitoring System For Intelligent Gondolas Based On The Internet Of Things

With the continuous acceleration of my country's modernization and urbanization,highrise buildings have emerged as the historic moment,and the demand for overhead cranes is increasing day by day.However,during the construction process,falling accidents caused by the failure of the high-altitude operation gondola frequently occurred.How to ensure the safety of construction and reduce the accident rate has become an urgent task.In view of the traditional construction equipment detection lack of real-time and accuracy,the introduction to the Internet of Things and modern sensor technology has reduced the incidence of accidents at high altitudes and ensured the safety of construction personnel operating at high altitudes.This thesis takes the traditional construction hanging basket of high-rise buildings as the research object.Firstly,it analyzes the industry standards and technical specifications of the high-altitude work gondola.Secondly,it is designed to address the problems of weak safety management and untimely early warning of dangerous accidents that exist in the current traditional detection technology.A comprehensive monitoring system for intelligent hanging baskets based on the Internet of Things.The main research contents are as follows:(1)This thesis divides the integrated monitoring system of the intelligent hanging basket based on the Internet of Things into three layers,including: monitoring layer,control layer,and communication layer.It realizes precise monitoring of construction personnel and equipment,closed-loop control of the system,and cloud transmission of monitoring data.(2)For the design of the monitoring part of the system,in order to adapt to the separated structure of the hanging basket for high-altitude operations,a distributed monitoring mode of the top-level suspension mechanism of the building and the high-altitude suspension platform is adopted.In terms of equipment safety monitoring,sensor technology is used to monitor the counterweight,load,height limit and attitude of the gondola and the quality of the hoisting wire rope of the gondola in real time.In terms of personnel safety monitoring,the wearing of safety locks and the overcrowding of the suspension platform are monitored.The framework of the underlying monitoring system.(3)In view of the wire rope defect detection problem,the magnetic flux leakage detection technology with convenient detection and high measurement accuracy is selected,through simulation modeling,the characteristics and influencing parameters of the signal at the defect are analyzed,and choose the best parameters to design an online inspection system for wire rope defects.In order to ensure the reliability of the detection results,for the interference signals existing in the detection process,the collected original signals are despised based on wavelet transform;by analyzing the characteristic quantities of the signals at the defects,an RBF neural network for quantitative identification of wire rope defects is established The model,through the sample test,verifies the accuracy and reliability of the model.(4)For the design of the control part of the system,based on the design ideas of warning and emergency,voice,sound and light warning of hidden safety hazards in operation;when there is a sudden danger,the crane can be controlled to lift the power device to achieve highaltitude operation.For emergency braking of the basket,a feasible control scheme is designed.(5)For the design of the communication part of the system,since the system adopts a distributed monitoring mode,considering the invisibility of the main control box and some monitoring nodes and the difficulty of integrated wiring,the Zigbee technology with strong selforganizing network capability and good penetration is used to build monitoring In the system's internal network,the data is collected through the GPRS module to realize the cloud transmission of the data,which provides the construction site monitoring center with real-time data of the overhead working basket on the construction site.(6)Aiming at the design of the system software platform,the software platform of the integrated monitoring system of the hanging basket was designed based on C#,which realized the remote monitoring and visual management of the hanging basket on the construction site,which facilitated the inspection and on-site inspection of the safety hazards of the hanging basket by the site supervisor Dispatching of construction personnel.Experiments show that the intelligent gondola integrated monitoring system based on the Internet of Things realizes the real-time monitoring of the high-altitude operation gondola and guarantees the construction safety of the high-altitude operations personnel.