Integrated intelligent high-precision measurement method based on cloud computing

Abstract

The invention discloses an integrated intelligent high-precision measurement method based on cloud computing, and relates to the technical field of construction, the method integrates artificial intelligence, Beidou, big data, Internet of Things technology and other advanced technologies, and develops an intelligent measurement management system integrating measurement data acquisition, processing, analysis and application; physical partitions among equipment such as Beidou satellite equipment, a network terminal and an intelligent total station are broken through through the Internet of Things technology, and scientific application of data is achieved under unified management of an intelligent measurement management system. Directional station setting and construction lofting are both controlled through a network, and manual participation is not needed in data processing, so that the measurement automation degree is improved, and the probability of human errors is reduced; after being recollected, the lofting data can be compared and checked with model data to form a data closed loop; the method is an external control method, the problem of error accumulation does not exist, the perpendicularity of the super high-rise building can be effectively guaranteed, and the measurement result is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of construction, and particularly relates to an integrated intelligent high-precision measurement method based on cloud computing. Background Art

[0002] In super high-rise buildings, verticality control is a very important task to ensure the safety and quality of buildings. It is necessary to strictly control the whole process from the foundation construction stage to the upper main structure construction stage by using accurate and reliable methods.

[0003] The current common methods include the laser plumb point method and the GNSS static measurement method. The specific methods are as follows:

[0004] Laser plumb point method: At least 4 holes need to be reserved on each floor, and a laser plumb instrument is erected below each hole to project points upward. Due to the limitation of the instrument's own projection accuracy, when the laser passes through the atmosphere between different floors of a super high-rise building, it will be affected by atmospheric turbulence, resulting in serious laser jitter. Therefore, a projection point conversion layer must be set every about 50 meters, and the projection points are restarted layer by layer upward from the conversion layer, and so on until the top of the structure is projected. For some projects with staggered construction of the core tube, the core tube positioning axis also needs to be re-measured from the position after projection to near the core tube and transmitted upward.

[0005] GNSS static measurement method: Usually, the static measurement method is used to conduct accuracy verification on the positioning axes at different construction heights. This method requires at least 2 GNSS receivers to be set at the ground control points, and 1 GNSS receiver is used to measure the points to be measured on the target floor respectively. The observation time for each point is about 60 minutes. After the observations of several points are completed in sequence, technical personnel need to export the data from the instrument and operate the computer to perform baseline solution, network adjustment, and coordinate system conversion. This method is an external control method, but it is not used as the guiding point for each layer of construction layout, and is only used as a reference for the accuracy verification of the points projected by the traditional method.

[0006] However, the laser plumb point method and the GNSS static measurement method have the following defects:

[0007] 1. The plumb point method belongs to the internal control method, which is prone to error accumulation, requires multiple people to cooperate during the process, and has low measurement efficiency.

[0008] 2. The plumb point method has cumbersome procedures, is difficult to recheck by other means, has strict requirements for the visibility conditions, and has low automation.

[0009] 3. The GNSS static measurement method takes too long for the measurement process, has low automation, low participation in the process, and is of little significance as a recheck means for guiding on-site construction.

[0010] 4. Both the laser point projection method and the GNSS static measurement method require at least three people to cooperate for a long time, resulting in high labor costs and high requirements for the professional technical level of personnel. Summary of the Invention

[0011] The object of the present invention is to provide an integrated intelligent high-precision measurement method based on cloud computing. With the development concept of intelligence, unmanned operation, cost reduction and efficiency improvement, advanced technologies such as artificial intelligence, Beidou, big data, and Internet of Things technology are integrated together to develop an intelligent measurement management system integrating measurement data acquisition, processing, analysis, and application. Through the Internet of Things technology, the physical barriers between Beidou satellite devices, network terminals, intelligent total stations and other devices are broken through, and under the unified management of the intelligent measurement management system, efficient acquisition of data, real-time processing and scientific application of results are realized, so as to improve the overall level of super high-rise building measurement.

[0012] The object of the present invention can be achieved through the following technical solutions:

[0013] An integrated intelligent high-precision measurement method based on cloud computing includes the following steps:

[0014] Step 1: Develop an intelligent measurement management system and a cloud server;

[0015] Step 2: Install a Beidou satellite positioning base station in a place with stable geology, good visibility, and weak electromagnetic interference outside the construction influence range;

[0016] Step 3: Uniformly set a plurality of Beidou satellite positioning base points in any stable, construction-interference-free, and less-occluded area outside the upper unobstructed on-site working surface to be measured in the construction site. The base points include base point Beidou receivers and 360-degree prisms connected below the base point Beidou receivers; and install an intelligent total station in the foundation pit;

[0017] Step 4: After starting the measurement, the Beidou satellite positioning base station and a plurality of Beidou satellite positioning base points synchronously observe the Beidou navigation and positioning satellites in the sky, obtain satellite data and transmit them to the cloud server carried by the intelligent measurement management system through the built-in communication module respectively. The intelligent algorithm built in the cloud server automatically performs calculation and adjustment on the received satellite data, quickly obtains a qualified adjustment result after calculation and feeds back the calculation data to the intelligent measurement management system in real time; the intelligent measurement management system converts the calculation data into positioning base point data through the built-in coordinate system conversion module and transmits it to the intelligent total station in real time;

[0018] Step 5: The intelligent total station starts the free stationing program, successively aims at and measures at least four 360-degree prisms. After passing the internal tolerance inspection, the stationing is completed. Import the three-dimensional model with the coordinates of the engineering coordinate system built in advance into the intelligent measurement management system, and the axis or structural feature points to be lofted can be selected through the model.

[0019] Further, in Step 1, the intelligent measurement management system can run on both the computer side and the handheld terminal simultaneously and is compatible with the Harmony OS system; as the background control center, the intelligent measurement management system uses the 5G network as a link and has functions such as setting measurement parameters of the Beidou receiver, processing and analyzing Beidou receiver measurement data, coordinate system conversion, controlling the intelligent total station for orientation station setting and measurement layout.

[0020] Further, in Step 2, the Beidou satellite positioning base station includes a concrete forced observation pier and a base station Beidou receiver that integrates a choke ring antenna and a receiver installed on the top of the concrete forced observation pier.

[0021] Further, in Step 2, the Beidou satellite positioning base station accurately determines the engineering coordinates of the forced centering point at the top of the concrete forced observation pier through a precision control network layout; the position of the Beidou satellite positioning base station remains unchanged during construction, and a review is carried out every three months. If the engineering coordinates of the working base station change significantly, corrections are made in a timely manner.

[0022] Further, in Step 3, the construction site includes a foundation pit and the above-ground structure of a super high-rise building. The above-ground structure of the super high-rise building includes an outer frame floor slab layer and a core tube layer; among them, when the construction site is a foundation pit, at least four Beidou satellite positioning base points are evenly set around the foundation pit; when the construction site is an outer frame floor slab layer, at least four Beidou satellite positioning base points in the form of a tripod are evenly erected around the outer frame floor slab layer; when the construction site is a core tube layer, at least four Beidou satellite positioning base points are fixedly installed on the peripheral stable structure.

[0023] Further, in Step 3, the intelligent total station is communicatively connected to the mobile terminal device through Bluetooth or a network module; the mobile terminal is equipped with a free station setting function to control the intelligent total station to set up a station and automatically aim at and measure the 360-degree prism below the on-site base point Beidou receiver in sequence; the engineering coordinates of the working base station measured can be queried in real time in the software of both the computer side and the handheld terminal.

[0024] Further, in Step 4, the Beidou satellite positioning base station and multiple Beidou satellite positioning base points both upload static measurement data to the intelligent measurement management system in real time at a preset data transmission frequency through the built-in 5G communication module.

[0025] Further, the Beidou satellite positioning base station and multiple Beidou satellite positioning base points are both powered by solar panels or commercial power.

[0026] Further, in Step 5, import the pre-built 3D model with engineering coordinate system coordinates into the intelligent measurement management system. After using the system coordinate extraction tool to extract the coordinates to be lofted, they can be sent to the intelligent total station and drive the intelligent total station to automatically aim at the target, realizing automatic lofting.

[0027] Further, after the automatic lofting is completed, in order to verify the accuracy of the lofted points, the intelligent total station can be used to aim at the 360-degree prism respectively and collect the coordinates of the target points; the collected target points can be synchronously marked and visually presented in the 3D model. Through the intelligent measurement management system, the theoretical and measured coordinates can be exported for error analysis.

[0028] Advantages of the present invention:

[0029] 1. In the integrated intelligent high-precision measurement method based on cloud computing of the present invention, the Beidou satellite positioning base station can work continuously for 24 hours. The on-site mobile base Beidou receiver with a 360-degree prism can be placed at any position where satellite signals can be received well, and high-precision static measurement backsight data can be obtained at any time and anywhere, realizing all-weather operation; it can save labor costs and improve measurement efficiency.

[0030] 2. In the integrated intelligent high-precision measurement method based on cloud computing of the present invention, both orientation station setting and construction lofting are controlled through the network, and data processing does not require manual participation, which not only improves the degree of measurement automation but also reduces the probability of human errors; after the lofting data is recollected, it can be compared and verified with the model data to form a data closed-loop; this method is an external control method and there is no problem of error accumulation, which can effectively ensure the verticality of super high-rise buildings and make the measurement results more accurate.

[0031] 3. The integrated intelligent high-precision measurement method based on cloud computing of the present invention has a wide range of applicable scenarios. In addition to being applicable to the whole life cycle of super high-rise buildings, any project that can normally receive Beidou satellite positioning signals and has network conditions can be used; it can be used to obtain the coordinates of on-site backsight control points and for construction. The operation process is simple and easy to understand, solving the problems of difficult layout of control points in the site area, unstable point positions, and over-reliance on manual labor in construction measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below with reference to the drawings.

[0033] Figure 1 It is an axonometric view of the Beidou satellite positioning base station and multiple Beidou satellite positioning base points in the foundation pit construction stage of the method of the present invention;

[0034] Figure 2 It is an axonometric view of obtaining the coordinate data of the Beidou satellite positioning base point in the foundation pit construction stage of the method of the present invention;

[0035] Figure 3 Isometric schematic diagram of the intelligent total station orientation and station setting in the method of the present invention;

[0036] Figure 4 Isometric schematic diagram of the layout lofting of the outer frame floor formwork layer in the method of the present invention;

[0037] Figure 5 Isometric schematic diagram of the intelligent total station orientation and station setting of the outer frame floor formwork layer in the method of the present invention;

[0038] Figure 6 Isometric schematic diagram of the layout lofting of the core tube in the method of the present invention.

[0039] In the figure: 1. Base station Beidou receiver; 2. Concrete forced observation pier; 3. Solar panel; 4. Beidou satellite positioning base point; 5. Beidou navigation and positioning satellite; 6. Intelligent total station; 7. Cloud server; 8. Intelligent measurement management system; 9. 360-degree prism; 10. Outer frame floor formwork layer; 11. Tripod-type Beidou satellite positioning base point. Specific implementation manner

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] The integrated intelligent high-precision measurement method based on cloud computing in this embodiment includes the following steps:

[0042] Step 1: Develop an independently developed intelligent measurement management system 8 and a cloud server 7; within the intelligent measurement management system 8, a Beidou satellite positioning measurement data management module, an inclination sensor measurement data management module, a monitoring and early warning management module, etc. are set up. After connecting the hardware devices to the system through Internet of Things technology, real-time online data interaction is achieved; the intelligent measurement management system 8 can run on terminal devices such as computers and mobile phones at the same time; the main functions of this system are as follows: remotely control the Beidou satellite positioning receiver to achieve data sampling interval, cut-off elevation angle, satellite constellation selection, etc.; customize the static observation period length of the Beidou satellite positioning receiver from 1 minute to 24 hours; provide two methods of inputting common point pairs or inputting coordinate transformation parameters to perform the coordinate transformation from WGS-84 coordinates to engineering coordinate system coordinates; record the Beidou satellite receiver observation data throughout the process and draw the position change network diagram of the Beidou satellite receiver within the customized period; automatically process the monitoring data, support the input of early warning values, be able to display the displacement change amounts of monitoring points such as daily reports, weekly reports, monthly reports, quarterly reports, and annual reports in real time and generate monitoring reports, and send early warning messages to designated personnel for early warning positions.

[0043] Step 2: As Figure 1 shown, build a Beidou satellite positioning base station in an open area outside the construction influence range and a stable area with less interference from manual, electromagnetic, high-rise building shielding, etc. The Beidou satellite positioning base station includes a buried concrete forced observation pier 2. By laying out a precise control network, accurately measure the engineering coordinates of the working base station of the forced centering point at the top of the concrete forced observation pier 2. This working base station engineering coordinate has been previously surveyed and is a known value; during the entire construction period, the base station can work continuously for 24 hours; install the base station Beidou receiver 1 that integrates a choke ring antenna and a receiver on the top of the concrete forced observation pier 2. The Beidou satellite positioning base station is powered by a solar panel 3 or commercial power.

[0044] Step 3: As Figure 1 shown, during the foundation pit construction stage, considering the long construction period of the foundation pit, evenly set four Beidou satellite positioning base points 4 with forced centering devices, namely A1, B2, C3, and D4, at appropriate positions around the foundation pit. The Beidou satellite positioning base point 4 includes a base point Beidou receiver and a 360-degree prism 9 connected below the base point Beidou receiver for subsequent orientation and station setting; the Beidou satellite positioning base point 4 is powered by a solar panel 3 or commercial power; before starting the measurement, ensure that the level bubble in the measurement base under all base point Beidou receivers is centered, and set up an intelligent total station 6 at an appropriate position in the foundation pit; through the intelligent measurement management system 8, set the built-in parameters such as the sampling interval, cut-off elevation angle, and satellite constellation selection of the subsequent base station Beidou receiver 1 and each base point Beidou receiver through networking technology.

[0045] Step 4: As Figure 2As shown in the figure, after the measurement starts, the Beidou satellite positioning base station and the four Beidou satellite positioning base points 4 synchronously observe the Beidou navigation and positioning satellites 5 in the sky. The Beidou satellite positioning base station and the four Beidou satellite positioning base points 4 form a network to start static synchronous observation. After observing for 5 - 10 minutes, measurement coordinate values with an accuracy of 2 - 3 mm can be obtained. Through the data transmission frequency set in the intelligent measurement management system 8 in advance, the base station Beidou receiver 1 and the base point Beidou receivers automatically and real-time upload the static measurement data (accuracy measurement coordinate values) to the intelligent measurement management system 8 through the built-in 5G communication module. The intelligent measurement management system 8 uploads the static measurement data to the cloud server 7 in real time. Through the intelligent algorithm (self-developed rapid real-time solution algorithm for Beidou static measurement data) built in the cloud server 7, a large amount of satellite data is automatically processed, and a qualified adjustment result is quickly obtained and feedback to the intelligent measurement management system 8 in real time. The intelligent measurement management system 8 converts the geodetic coordinates of the working base point obtained by static measurement into engineering coordinates of the working base point through the built-in coordinate system conversion module and transmits them to the intelligent total station 6 on site in real time.

[0046] Step Five: As Figure 3 shown in the figure, after the intelligent total station 6 obtains the engineering coordinate data of the working base point and gets the automatic station setup instruction through the intelligent measurement management system 8, it starts the free station setup program. It successively aims at and measures the 360-degree prism 9 under the four base point Beidou receivers in the super search mode. After passing the internal tolerance inspection, the station setup is completed. At this time, the intelligent total station 6 has the ability to measure and set out the coordinates in the engineering coordinate system. Import the pre-built three-dimensional model with engineering positioning coordinates into the intelligent measurement management system 8, and the axes or structural feature points to be set out can be selected through the model. This method is used until the foundation pit project construction is completed and enters the above-ground structure construction stage.

[0047] In the construction stage of the super high-rise above-ground main structure, the super high-rise above-ground structure is mainly divided into two types: the outer frame floor slab layer and the core tube layer. Due to the staggered floor construction, the construction progress of the core tube is 5 - 8 floors faster than that of the outer frame floor slab layer. Therefore, separate station setups are required for the outer frame floor slab layer and the core tube layer.

[0048] Step Six: Please refer to Figures 4 - 5 , in the construction stage of the outer frame floor slab layer, since each floor of the outer frame floor slab layer 10 needs to be measured and there is no line of sight between the upper and lower floors, the back sight working base point of the outer frame floor slab layer adopts the form of setting up a tripod-mounted Beidou satellite positioning base point 11. Tripod-mounted Beidou satellite positioning base points 11 are respectively set up at A2, B2, C2, and D2 of the outer frame floor slab layer. The subsequent measurement procedures are the same as those in Step Four and Step Five.

[0049] Step 6: During the construction stage of the core tube floors, since the building construction machine and climbing formwork construction technology are adopted for the core tube floors, the Beidou satellite positioning base point 4 can be fixed to the stable structure on the outer periphery of the building construction machine or climbing formwork by welding or bolting. The Beidou satellite positioning base point 4 rises as the floor rises. The absolute positions of the working base point plane coordinates at the corresponding positions on each floor do not need to be the same in the horizontal plane projection. The absolute engineering coordinates of the Beidou satellite positioning base point 4 on each floor can be re-obtained through static measurement. This not only solves the problems of cumbersome work and error accumulation caused by point projection, but also solves the problems of too long time and low participation rate in traditional static measurement. The subsequent measurement procedures are the same as those in Step 3 and Step 4.

[0050] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An integrated intelligent high-precision measurement method based on cloud computing, characterized in that, It includes the following steps: Step 1: Develop an intelligent measurement management system and a cloud server; Step 2: Install a Beidou satellite positioning base station in the area outside the construction scope; Step 3: Uniformly set multiple Beidou satellite positioning base points around the construction site. The base points include base point Beidou receivers and 360-degree prisms connected below the base point Beidou receivers; and install an intelligent total station in the foundation pit; Step 4: After the measurement starts, the Beidou satellite positioning base station and multiple Beidou satellite positioning base points synchronously observe the Beidou navigation and positioning satellites in the sky, obtain satellite data and transmit them to the cloud server carried by the intelligent measurement management system through the built-in communication modules respectively. The intelligent algorithm built in the cloud server automatically calculates and adjusts the received satellite data, quickly obtains a qualified adjustment result after calculation and real-time feeds back the calculation data to the intelligent measurement management system; the intelligent measurement management system converts the calculation data into positioning base point data through the built-in coordinate transformation module and transmits it to the intelligent total station in real time; Step 5: The intelligent total station starts the free station setup program, successively aims at and measures at least four 360-degree prisms. After passing the internal tolerance inspection, the station setup is completed. Import the three-dimensional model with the coordinates of the engineering coordinate system built in advance into the intelligent measurement management system, and the axes or structural feature points to be lofted can be selected through the model.

2. The integrated intelligent high-precision measurement method based on cloud computing according to claim 1, characterized in that, In Step 1, the intelligent measurement management system runs on the computer terminal and the handheld terminal; the intelligent measurement management system is used for the functions of setting the measurement parameters of the Beidou receiver, processing and analyzing the measurement data of the Beidou receiver, coordinate transformation, controlling the intelligent total station for orientation station setup and measurement lofting.

3. The integrated intelligent high-precision measurement method based on cloud computing according to claim 1, characterized in that In Step 2, the Beidou satellite positioning base station includes a concrete forced observation pier and a base station Beidou receiver integrating a choke ring antenna and a receiver installed on the top of the concrete forced observation pier.

4. The integrated intelligent high-precision measurement method based on cloud computing according to claim 1, characterized in that, In Step 2, the Beidou satellite positioning base station measures the engineering coordinates of the forced centering point on the top of the concrete forced observation pier by laying out a control network; the position of the Beidou satellite positioning base station remains unchanged during the construction period and is rechecked once according to the preset cycle.

5. The integrated intelligent high-precision measurement method based on cloud computing according to claim 1, characterized in that In Step 3, the construction site includes a foundation pit and the above-ground structure of a super high-rise building. The above-ground structure of the super high-rise building includes an outer frame floor slab layer and a core tube layer; among them, when the construction site is a foundation pit, at least four Beidou satellite positioning base points are uniformly set around the foundation pit; when the construction site is an outer frame floor slab layer, at least four Beidou satellite positioning base points in the form of tripod are uniformly erected around the outer frame floor slab layer; when the construction site is a core tube layer, at least four Beidou satellite positioning base points are fixedly installed on the peripheral stable structure.

6. The integrated intelligent high-precision measurement method based on cloud computing according to claim 1, characterized in that, In Step 3, the intelligent total station is communicatively connected with the mobile terminal device through Bluetooth or a network module; the terminal device is provided with a free station setup function for controlling the intelligent total station to set up a station and successively and automatically aim at and measure the 360-degree prisms below the base point Beidou receivers respectively.

7. The integrated intelligent high-precision measurement method based on cloud computing according to claim 1, characterized in that, In step four, the Beidou satellite positioning base station and multiple Beidou satellite positioning base points both upload static measurement data to the intelligent measurement management system in real time at a preset data transmission frequency through the built-in 5G communication module.

8. The integrated intelligent high-precision measurement method based on cloud computing according to claim 7, characterized in that, The Beidou satellite positioning base station and multiple Beidou satellite positioning base points are both powered by solar panels or commercial power.

9. The integrated intelligent high-precision measurement method based on cloud computing according to claim 1, characterized in that, In step five, import the three-dimensional model with engineering coordinate system coordinates into the intelligent measurement management system. After using the system coordinate extraction tool to extract the coordinates to be lofted, send them to the intelligent total station and drive the intelligent total station to automatically aim at the target to achieve automatic lofting.

10. The integrated intelligent high-precision measurement method based on cloud computing according to claim 9, wherein, It also includes: Step six, respectively aim at the 360-degree prism through the intelligent total station and collect the target point coordinates; the target point coordinates are synchronously marked in the three-dimensional model.

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