Design And Implementation Of Intelligent Detection System For Aperture Friction Based On LoRa

Railways,Bridges and other construction projects to manufacture concrete beams,it is necessary to measure the pressure values at both ends of the concrete beam by the frictional strength test,and then to obtain the relevant frictional strength parameters,to provide a theoretical basis for error correction in the construction phase.Currently,the friction resistance test adopts the intelligent measuring instrument combined with the traditional manual measurement method,which is limited by the acquisition time and spatial factors,and can’t guarantee the real time and accuracy of the measuring data.Currently,the intensive development of intelligent manufacturing is the general trend.Therefore,this article takes an in-depth look at the principles and testing steps of traditional blocking tests and introduces an intelligent manufacturing system to solve current problems.Combined with Long rank communication technology(LoRa)and cloud iot platform technology,we designed LoRa based passage blocking intelligent detection system,and high performance,high precision,low power consumption,low cost in purpose,the system for secondary development to improve the overall performance.The details are as follows:(1)when requested,the general design resistance test defines the technical programs of the indicators to distribute the systems architectures layer,networks and the three elements at the device level the perception of the system,composed of layers,was finalized by selecting and designing circuits,as well as designing and installing the necessary equipment of the module with walkway girders end acquisition and automatic radio transmission of data the real time and synchronization of data acquisition are guaranteed.(2)propose three algorithms based on particle mass,receiving simulator and particle mass improvement for optimal selection of the LoRa objective function and,in comparison with traditional empirical values,select a set of parameters that allow minimum power consumption of the LoRa communication module and optimal overall system performance,While meeting transmission distance requirements and ensuring system stability;Through the analysis and study of the three operating modes of LoRa terminal,the use of three modes of reasonable combination,the terminal multimodal work program is designed to meet the requirements the use of the multimodal working mode further reduces the power consumption of the system;Software design for the system serial port transmission and reception mechanism,data frame format,networking mode,to realize the communication function and networking requirements.(3)The design and development of a monitoring and management system for the cloud platform enabled the storage and distal processing of data.This system was then designed with a database and Web interface,culminating in the creation of a stress test project.Ultimately,it enabled real-time data display,fluctuation analysis,historical data query,data report download,and other functions.(4)subjected to system testing,including communication performance testing to collect data from the entire United Nations system,testing associated with analysis of the results of the resistance test passes here shows the results of tests designed to the resistance of intelligent detection systems,having long distance accuracy,high collection,robustness,low consumption,cost,etc.,May comply with either the requirements of the nemo strength test,with a high practical value.