| With the rapid development of my country’s economy,the upgrading of infrastructure and the acceleration of urbanization,a large number of urban landmark buildings such as the Bird’s Nest,Water Cube,Guangzhou TV Tower,and the Three Gorges Dam have emerged.In addition,in order to alleviate the problem of the influx of people into the city and the shortage of land resources,high-rise and super-high-rise dense blocks have emerged and emerged one after another.Such ultra-high,ultra-large-scale,ultra-design concepts,and uniquely designed buildings will not only have problems such as component aging and settlement during long-term operation,but also be affected by external load factors such as wind and sun,temperature changes,natural disasters,etc.And produce varying degrees of deformation.When the deformation exceeds the specified safety range,it will not only affect its normal use,but also endanger the safety of life and property.Therefore,it is very important to grasp the deformation of structures in time,and to alert and take remedial measures before any loss is caused.Although traditional measurement methods represented by conventional total stations and level gauges have high accuracy and strong applicability,they have low work efficiency and are difficult to meet the needs of real-time deformation monitoring of modern buildings.The GNSS deformation monitoring technology represented by Beidou has the advantages of high accuracy,all-weather,all-weather and high degree of automation,but it is used in high-rise areas,complex structures,and buildings with serious signal obstruction,as well as underground engineering and dams in deep mountains and valleys.Under such bad positioning conditions,the above advantages will be greatly reduced,and even cannot be used in underground projects.Digital close-range photogrammetry has become one of the important methods of modern deformation monitoring with its significant advantages of high precision,real-time,non-contact,etc.This monitoring method is suitable for deformation operations such as landslide areas and subsidence areas with many observation points,but it is difficult for the observation environment.,Deformation monitoring of structures with high observation accuracy and sparse monitoring points does not show obvious advantages.The measurement robot can not only take advantage of the advantages of high precision and high reliability in the traditional measurement mode,but also have the characteristics of automatic search and collimation and multi-language secondary development and expansion.It can be applied to many harsh monitoring environments and can be achieved to a certain extent.Automated observation.However,from the current application point of view,it mostly stays at the level of auxiliary manual operation,and the potential and adaptability of automation still need to be further explored.This article is oriented to the deformation monitoring of structures and structures,mainly based on the Leica TS50 measuring robot.Based on the research of deformation monitoring principles and methods,it focuses on the analysis of its secondary development platform and development kit,and develops from the perspective of the secondary development of the advanced function protocol.The building deformation monitoring system based on the TS50 measuring robot not only makes up for the shortcomings of its insufficient degree of automation,but also realizes the automatic processing and early warning of the building deformation monitoring data,so as to meet more and more complex structural engineering constructions at home and abroad.There is a need for high-precision automation and even intelligent deformation monitoring.The specific research results of the thesis are as follows:(1)On the basis of fully studying the current situation at home and abroad,according to the actual characteristics and specification requirements of different building monitoring,study and study the principle,method,key technology and observation plan design based on the deformation monitoring of the measuring robot,and make the actual building deformation for the actual building.The design of the monitoring scheme and the selection and layout of monitoring points have provided a solid foundation.(2)Compared with the current mainstream measuring robots,not only the accuracy and error analysis experiments of the angle measurement and range measurement have verified the high precision and high stability of the Leica TS50 measuring robot,but also the TS50 under different observation background environments and different observation temperatures.The ATR performance analysis experiment of the measuring robot verified the feasibility of the Leica TS50 measuring robot for various large-scale precision deformation monitoring projects.(3)Based on the two functional protocols under the GeoCOM platform,carry out secondary development and study the applicable data communication methods.According to the needs and characteristics of different monitoring projects,the automatic deformation monitoring system and database are designed and implemented,which not only realizes the real-time automation of data acquisition,data storage,data transmission and other conventional functions,but also automatically processes and analyzes the data.Prediction and early warning of the actual situation of buildings.(4)By selecting the automatic deformation monitoring system in the special monitoring project of a certain section of the Beijing-Shanghai high-speed railway in Tai’an and the application of the automatic scanning mode in a dam body type monitoring project on the Jinsha River,it is verified that the deformation monitoring system can not only achieve the single monitoring accuracy within 1mm.Point monitoring can also achieve high-precision,intuitive and three-dimensional monitoring from point to surface.Finally,on the basis of verifying accuracy and system reliability,the algorithm and program are further improved to complete the overall deformation analysis of the monitoring area. |
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