Design Of Building Safety Monitoring System Under Construction

Green construction and safe construction are important requirements in the field of construction at present.In the past,construction safety mainly relied on manpower supervision.In construction projects with different scales and different numbers of personnel,the number of security personnel required to be equipped has strict requirements.However,the way based on human resources supervision will be inadequate because of the large construction projects,complex projects and other factors.This also leads to various kinds of safety accidents in the field of construction engineering.This paper designs a security monitoring system based on wireless sensor technology.Through technical means to complete safety monitoring for site construction information,real-time monitoring of potential safety hazards.When there are hidden dangers,alarm is timely,and the collected information is transmitted to the ground monitoring system through the 4G wireless communication network.The system adopts independent power supply mode and wireless communication mode to reduce the dependence on the construction site environment,while ensuring that it can work steadily in complex site environment.Firstly,the background and significance of the topic are analyzed.It studies the main problems existing in the safety of current construction projects.On this basis,the overall structure of building safety monitoring system under construction is designed,and the composition of different units is analyzed.It discusses the sensor technology of information acquisition,and determines the selection of sensors through comparative analysis.It analyses the overall architecture of wireless sensor network technology and determines the choice of wireless sensor communication technology.Secondly,it analyses the overall design of the building safety monitoring system under construction.Based on the analysis of the requirements of the safety monitoring system,it discusses the functional requirements of the monitoring system itself and the key problems to be solved in the system design.It analyses the overall design of the safety monitoring system and draws the overall functional block diagram of the system.Through the comparative analysis of the controllers,S3C2416 is chosen as the core controller.Aiming at the power supply mode of building application scenario,it discusses the design scheme of independent power supply.This paper focuses on the analysis of the hardware unit function realization of the building safety monitoring system under construction.According to the overall design of the system,the circuit design of the core control system is analyzed,including communication interface circuit,wireless sensor acquisition circuit and the device selection and circuit design of the circuit part of the 4G communication unit.It analyses the circuit design of acoustooptic alarm unit and power supply unit.It focuses on the design and implementation of power quality monitoring unit and the design and implementation of meteorological information monitoring unit.Finally,the software system design and function test of building safety monitoring system under construction are discussed.Firstly,the overall structure of the software system and the functions and implementation of each software unit are analyzed.The function test of the system is discussed emphatically.The whole function of the system is realized and meets the industrial standard.Compared with the standard 0.2S level instrument,the error of power quality detection index is less than 2%.The error of meteorological information detection index is less than 5%.The indicators meet the design and application requirements.The system can be widely used in various construction projects.By using different wireless sensor units,the monitoring of various hazards can be realized,and the safe construction of construction projects can be effectively guaranteed.