| In the process of promoting socialist modernization,China has gradually taken the construction industry as one of the important components of the national economy in combination with the market environment and the needs of the people’s lives,providing a good opportunity for the rapid development of Chinese construction industry.But at the same time,many safety incidents have also occurred.Because the construction industry is a labor-intensive industry,and the construction environment is constantly changing,construction safety accidents are not uncommon,and the resulting loss of people’s lives and property is huge.The data shows that the development of Chinses construction industry is almost keeping pace with the occurrence of safety accidents,and the safety production situation of Chinses construction industry is very severe.In 2020,the Ministry of Industry and Information Technology and the Ministry of Emergency Management jointly issued the "Industrial Internet + Safe Production" Action Plan(2021-2023)to promote the continuous introduction of new equipment and technologies into the field of safe production in order to realize the construction industry sustainable development.In view of the seriousness of construction safety accidents,this article first sorts out and classifies the typical accidents that occur on the construction site,and analyzes the unfavorable environmental factors that cause these typical accidents.There are mainly foundation pits,openings,borders,walls,scaffolding,mechanical equipment,tower cranes and cranes,wires and cables and other factors that pose safety hazards.On this basis,this paper identifies the construction area where these environmental factors are located according to the existing specifications,and divides the five types of dangerous areas,including the falling area,the falling object area,the collision area,the collapse area and the electric shock area.Secondly,this article analyzes the building safety early warning system from a theoretical perspective,and identifies the construction of mathematical models,the application of wireless communication systems,information transmission technology and information processing technology as the necessary components of the early warning system.In terms of information collection and processing,combined with the characteristics of the construction site,detailed requirements for classification,storage,identification,and processing are put forward to ensure the accuracy and timeliness of the early warning system’s calculation results.At the same time,this article analyzes the practical significance of real-time early warning systems in construction projects.From risk identification to autonomous early warning drive,the early warning system can continuously incorporate new technologies and equipment in terms of applicability and scientificity,allowing on-site safety managers to manage The efficiency is greatly improved,and the dependence of safety management on people is reduced.Finally,this article takes advantage of the Internet of Things(Internet of Things)that can connect things to the network and proposes the concept of connecting different dangerous areas into the network.On this basis,a beacon sensor early warning system based on the Internet of Things is established.The beacon sensor is used as an anchor to mark the dangerous areas on the scene,and the Bluetooth low energy signal is used to send the dangerous area information to the receiver.The receiver is connected to the cloud computing platform.After calculation in the cloud,the early warning can be started and the warning The information is sent to the personal mobile phone terminal program through the information sending platform,and finally realizes the early warning reminder to the person.Finally,this article conducted experiments on the designed safety early warning system at a construction site in Xi’an.After data collection and analysis,the early warning system has a good development prospect and can provide a certain reference for safety early warning management.Third,this paper takes advantage of the Io T(Internet of Things)to connect things to the network and proposes the concept of connecting dangerous sources into the network,and on this basis establishes a beacon sensor early warning system based on the Internet of Things.The beacon sensor is used as an anchor point to mark the hidden dangers of the scene,and the Bluetooth low energy signal is used to send the hazard source information to the receiver.The receiver is connected to the cloud computing platform.The early warning can be started after calculation in the cloud,and the warning information is sent to the personal mobile phone terminal program through the information sending platform,and finally realizes the early warning reminder to the person.Finally,this article conducted experiments on the designed safety early warning system at a construction site in Xi’an.After data collection and analysis,the early warning system has a good development prospect and can provide a certain reference for safety early warning management. |