Monitoring device and monitoring method for engineering quantity verification

Abstract

The invention discloses a monitoring device and a monitoring method for engineering quantity verification, and belongs to the technical field related to multi-parameter monitoring. The monitoring device comprises a ground unit, an unmanned aerial vehicle platform and an unmanned aerial vehicle. The ground unit comprises a plurality of support sets. The unmanned aerial vehicle platforms are assembled on a support set arranged along a linear array or sequentially stacked and installed in the vertical direction, and each unmanned aerial vehicle platform comprises a platen. Each unmanned aerial vehicle parks on the bedplate and comprises a vehicle body, a laser range finder is arranged on the lower end face of the vehicle body and used for measuring the depth of a preset place in the foundation pit, and a first camera module is arranged at one end of the upper end face of the vehicle body. The monitoring method comprises the steps of monitoring frequency setting, unmanned aerial vehicle platform assembling, underground part monitoring, unmanned aerial vehicle platform transferring, ground part monitoring and the like. According to the invention, the automation level of engineering quantity verification can be improved, all parts for monitoring the underground part and the ground part are universal, and the usability is high.

Description

Technical Field

[0001] The present invention relates to the technical field related to multi-parameter monitoring, and in particular to a monitoring device and a monitoring method for engineering quantity verification. Background Art

[0002] Quantity verification usually refers to the process of measuring, confirming and recording the actual amount of work completed in a construction project. In actual construction, the most common construction is within a rectangular area, including underground and ground parts.

[0003] The underground part includes core steps such as foundation pit excavation, driving foundation piles, slope repair, and foundation pit backfilling. Both foundation pit excavation and foundation pit backfilling will take a long time. In these two steps, the excavation volume measurement method is involved to verify this part of the project volume. The existing measurement usually adopts the point-by-point measurement method of instruments such as total stations, which requires surveyors to collect data point by point, which is time-consuming, consumes more manpower and is prone to fatigue and errors.

[0004] The verification of the engineering quantity of the ground part is more complicated, including the verification of structural engineering, installation engineering, temporary engineering, etc. It is difficult to achieve full automation, and staff are required to verify according to actual conditions. Currently, when verifying the engineering quantity of the ground part, personnel need to go up and down stairs frequently, which consumes a lot of physical energy.

[0005] In addition, most of the equipment used in verifying the engineering quantities for the ground and underground parts are different, so the operation is more complicated and requires multiple personnel who are proficient in using different equipment to operate. Summary of the invention

[0006] In view of the above-mentioned defects, the present invention provides a monitoring device and a monitoring method for engineering quantity verification, which can improve the level of automation during engineering quantity verification, and the components for monitoring underground and ground projects are universal and easy to use.

[0007] In order to achieve the purpose of the present invention, the following technologies are proposed: A monitoring device for engineering quantity verification, comprising: A ground unit includes a plurality of bracket groups, each bracket group including four bottom columns arranged at the four corners of a rectangle; Multiple UAV platforms are respectively mounted on bracket groups arranged in a linear array, or are stacked and installed on one or two bracket groups in sequence along the vertical direction. The UAV platform includes a platform, a lower end of which is provided with four rectangular tubes, the openings of the rectangular tubes match the bottom columns, and the upper end of the platform is provided with four top columns matching the openings of the rectangular tubes; A plurality of drones are parked on the platform respectively. The drones include a body. A laser rangefinder is provided on the lower end surface of the body for measuring the depth of a predetermined location in the foundation pit. A first camera module is provided at one end of the upper end surface of the body.

[0008] Furthermore, a plurality of first transverse holes are respectively opened in the vertical direction on the side surfaces of each bottom column located at one end or both ends above the foundation pit, and a circular groove is opened on the ground of the construction site around the bracket group where the bottom column with the first transverse holes is located.

[0009] Furthermore, when monitoring foundation pits, each drone platform is installed on a bracket group respectively. When monitoring ground buildings, one drone platform is installed on a bracket group with circular grooves on all sides. Several drone platforms are installed in sequence above the drone platform at the bottom in the vertical direction.

[0010] A monitoring method for engineering quantity verification using a monitoring device for engineering quantity verification comprises the following steps: S100: Setting monitoring frequency t; S200: Assembling UAV platforms respectively on a plurality of bracket groups arranged in a straight line array, and then placing a plurality of UAVs respectively on the table of each UAV platform; S300: From the start of excavation of the foundation pit at the construction site to the end of backfilling the foundation pit after excavation, the underground engineering quantity is monitored multiple times according to the monitoring frequency t during this period, wherein each monitoring method is: each drone flies in a direction perpendicular to the straight line arranged by the drone platform and passes over the foundation pit to reach the other end of the foundation pit. When the drone is over the foundation pit, the laser rangefinder detects the distance to the bottom surface of the foundation pit vertically downward multiple times at a predetermined interval and records it; S400: After the underground construction is completed, each drone platform described in S200 is disassembled, and a drone platform is assembled on one or two bracket groups, and then multiple drone platforms are stacked and installed in sequence on the assembled drone platforms, and then multiple drones are respectively flown and parked on the platforms of each drone platform; S500: The engineering quantity of the ground part is monitored multiple times at a monitoring frequency t, wherein each monitoring method is: each drone takes a picture around the ground part building at its height through the first camera module, and transmits the image to the ground staff.

[0011] The beneficial effects of this technical solution are: When monitoring the underground part, each drone platform is set on the same horizontal plane, and each drone also works on the same horizontal plane during monitoring. When monitoring the ground part, each drone platform is disassembled and reassembled in the vertical direction. Each drone can monitor at its own height. In this way, the drone can save the electricity used by frequent up and down flights. The main equipment for monitoring the ground and underground parts can be used universally, which can reduce the difficulty of operation and improve monitoring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A stereoscopic diagram of the ground unit and the UAV platform of an embodiment of the present application when monitoring a foundation pit is shown.

[0013] Figure 2 A stereoscopic diagram of the ground unit and the UAV platform of an embodiment of the present application when monitoring a ground building is shown.

[0014] Figure 3 A three-dimensional diagram of a ground unit according to an embodiment of the present application is shown.

[0015] Figure 4 The present application embodiment is shown Figure 3 A magnified view of part A.

[0016] Figure 5 The present application embodiment is shown Figure 3 Enlarged view of part B.

[0017] Figure 6 A single group of drone platforms and a stereoscopic image of the drone according to an embodiment of the present application are shown.

[0018] Figure 7 A stereoscopic view of the UAV platform according to an embodiment of the present application as viewed from below is shown.

[0019] Figure 8 The specific structure of the drone in the embodiment of the present application is shown in FIG. Figure 1 .

[0020] Fig. 9 The specific structure of the drone in the embodiment of the present application is shown in FIG. Figure 2 .

[0021] Fig.10 A stereoscopic view of a sampling vehicle according to an embodiment of the present application is shown.

[0022] Fig.11 The present application embodiment is shown Fig.10 Enlarged view of part C.

[0023] Fig.12 A flow chart showing the main steps of the monitoring method for engineering quantity verification according to an embodiment of the present application is shown.

[0024] Fig.13 A schematic diagram of the first plot of land according to an embodiment of the present application is shown.

[0025] Fig.14 A schematic diagram of the second plot in the first plot of an embodiment of the present application is shown.

[0026] Markings in the figure: carport 1, bracket group 2, bottom column 21, first transverse hole 22, round-shaped groove 3, round-shaped filling frame 31, UAV platform 4, table 41, rectangular tube 42, second transverse hole 43, top column 44, third transverse hole 45, inclined plate 46, top plate 47, first hanging ring 48, UAV 5, body 51, support rod 511, inverted L-shaped frame 512, laser rangefinder 52, first camera module 53, second camera module 54, parts slot 55, first manipulator 56, air clamp 57, first straight Line mechanism 58, first rotating motor 59, screwdriver head 591, sampling vehicle 6, vehicle body 61, second hanging ring 62, device rack 63, device slot 64, second manipulator 65, second rotating motor 66, side plate 661, second linear mechanism 67, cross block 68, tilting plate 681, clamping block 69, semi-cylindrical slot 691, soil sampling barrel 7, round rod 71, force plate 72, electric turntable 8, rotating plate 81, third linear mechanism 83, vertical rod 84, striking plate 85, construction site 9, foundation pit 91. DETAILED DESCRIPTION

[0027] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0028] like Figure 1 to Figure 11 A monitoring device for engineering quantity verification shown includes a ground unit, an unmanned aerial vehicle platform 4, an unmanned aerial vehicle 5, and a sampling vehicle 6.

[0029] like Figure 1~Figure 5 As shown, the ground unit is arranged on the construction site 9, and the ground unit includes a plurality of carports 1 located on one side above the foundation pit 91, and a plurality of bracket groups 2 located on the other side above the foundation pit 91. The bracket group 2 includes four bottom columns 21 arranged at the four corners of a rectangle, and a plurality of bracket groups 2 are also arranged on the outside of one or both ends above the foundation pit 91. The side surfaces of each bottom column 21 located on the outside of one or both ends above the foundation pit 91 are respectively provided with a plurality of first transverse holes 22 in the vertical direction. Around the bracket group 2 where the bottom column 21 with the first transverse hole 22 is located, a circular groove 3 is provided on the ground of the construction site 9 for assembling a circular filling frame 31. Preferably, a ring portion can be processed on the upper end of the circular filling frame 31 for easy lifting.

[0030] For example, Figure 1 , Figure 2 In the embodiment, a support group 2 is provided at one end above the foundation pit 91. Figure 3 In the situation shown in FIG. 1 , a support group 2 is provided at one end above the foundation pit 91 .

[0031] like Figure 1~Figure 3 , Figure 6 , Figure 7 As shown, there are multiple drone platforms 4. When monitoring the foundation pit 91, each drone platform 4 is respectively mounted on the bracket group 2. When monitoring the ground building, one drone platform 4 is mounted on the bracket group 2 with round grooves 3 on all sides. Several drone platforms 4 are sequentially mounted on the drone platform 4 located at the bottom in the vertical direction. The drone platform 4 includes a table 41, and four rectangular tubes 42 are provided at the lower end. Preferably, the height of a single rectangular tube 42 is the same as the height of a floor under construction. The opening of the rectangular tube 42 matches the bottom column 21, and a plurality of second horizontal holes 43 matching the first horizontal holes 22 are opened through the side of the rectangular tube 42. When the rectangular tube 42 is sleeved on the outer peripheral side of the bottom column 21, The second transverse holes 43 and the first transverse holes 22 arranged in pairs are respectively connected by multiple screws, so that the UAV platform 4 can be more stable when assembled on the bracket group 2. Four top columns 44 matching the openings of the rectangular tube 42 are provided at the upper end of the table 41, and multiple third transverse holes 45 are opened on the side of the top column 44. When another UAV platform 4 is installed on top of one UAV platform 4, the second transverse holes 43 and the third transverse holes 45 arranged in pairs are respectively connected by multiple screws, so that the assembly between the two UAV platforms 4 can be made more stable. A pair of inclined plates 46 are provided at the upper end of the table 41, and a top plate 47 is provided at the upper end of the inclined plate 46. A first hanging ring 48 is provided on the top plate 47 to facilitate the lifting of the UAV platform 4.

[0032] like Figure 6 , Figure 8 , Fig. 9 The number of drones 5 shown is multiple, and they are parked on the platform 41 of the drone platform 4 respectively in the preparation stage before each monitoring. The drone 5 includes a body 51, two sets of propeller assemblies are respectively provided on both sides of the body 51, a landing gear is provided at the lower end of the body 51, and a laser rangefinder 52 is provided on the lower end surface of the body 51 for measuring the depth of a predetermined location in the foundation pit 91. A first camera module 53 is provided at one end of the upper end surface of the body 51, and a second camera module 54 is provided at one end of the first camera module 53. Specifically, the second camera module 54 uses a camera with a pitch function. The upper end surface of the body 51 is also provided with a parts slot 55 and two first camera modules. Manipulator 56, the moving end of the first manipulator 56 is provided with an air clamp 57, the part slot 55 includes two part grids, which are used to store screws and nuts respectively, and the other end of the body 51 is provided with a fastening component for fastening the UAV platform 4 after assembly, including a first linear mechanism 58, a bracket is provided at its output end, and a first rotary motor 59 is provided on the bracket, and a screwdriver head 591 is provided at the output end of the first rotary motor 59. More specifically, a support rod 511 and an inverted L-shaped frame 512 are also provided on the upper end surface of the body 51, the second camera module 54 is provided on the support rod 511, and the first linear mechanism 58 is provided at one end of the horizontal side of the inverted L-shaped frame 512.

[0033] like Fig.10 , Fig.11 The number of sampling vehicles 6 shown is multiple, and they are parked in the carport 1 respectively in the preparation stage before each monitoring. The sampling vehicle 6 adopts a crawler drive mechanism, including a vehicle body 61. A second hanging ring 62 is provided at the center of the upper end surface of the vehicle body 61 to facilitate the lifting and transfer of the sampling vehicle 6. The upper end surface of the vehicle body 61 is also provided with a second manipulator 65, an electric turntable 8, and a plurality of device racks 63. The upper end of the device rack 63 is provided with a plurality of device slots 64. The bottom end surface of the device slot 64 is also provided with a narrow slot that penetrates the vehicle body 61 to a predetermined distance downward. A soil sampling barrel 7 is provided in the device slot 64. A round rod 71 is provided at the closed end of the soil sampling barrel 7. A force plate 72 with an area slightly smaller than the narrow slot is provided at the upper end of the round rod 71. The moving end of the second manipulator 65 A second rotating motor 66 is provided at the end, and a side plate 661 is provided at its output end. A pair of second linear mechanisms 67 oppositely arranged are provided on one side of the side plate 661. A cross block 68 is provided at the output end of the second linear mechanism 67. A tilting plate 681 is provided at the lower end of the cross block 68. A clamping block 69 is provided at the lower end of the tilting plate 681. Semi-cylindrical grooves 691 matching the outer circumference of the round rod 71 are respectively provided on the opposite sides of the two clamping blocks 69. A rotating plate 81 extending to the outer end of the sampling vehicle 6 is provided on the electric turntable 8. A third linear mechanism 83 is vertically provided at one end of the rotating plate 81. A vertical rod 84 is provided under the output end of the third linear mechanism 83. A striking plate 85 for causing the soil sampling tube 7 to enter the soil layer by striking the force-bearing plate 72 is provided at the lower end of the vertical rod 84.

[0034] By using the sampling vehicle 6, it is convenient for the engineering quantity verification personnel to add parameters in the calculation after analyzing the samples, so as to make the calculation more reasonable. Common soil types include clay, sand, and silt. The parameters of various soil types, such as loose coefficient, are different. The loose coefficient of clay is 1.1-1.3, the loose coefficient of sand is 1.2-1.5, and the loose coefficient of silt can reach 1.5-1.8. When the loose coefficient is high, the transportation and stacking engineering quantity increases.

[0035] In this embodiment, the first linear mechanism 58 and the second linear mechanism 67 both adopt single-axis linear cylinders, and the third linear mechanism 83 adopts a linear hydraulic cylinder.

[0036] like Fig.12 , the monitoring method for engineering quantity verification using the above monitoring device is operated according to the following steps: S100: Setting monitoring frequency t; In this embodiment, t is one day, that is, monitoring is performed once a day; S200: UAV platforms 4 are respectively assembled on a plurality of bracket groups 2 arranged in a straight line array. During assembly, each rectangular tube 42 of the UAV platform 4 is sleeved on the corresponding bottom column 21, and then a plurality of UAVs 5 are respectively placed on the table 41 of each UAV platform 4; Specifically, the bracket group 2 arranged along a straight line array as mentioned above is Figure 1~Figure 3 The row of brackets group 2 on the right.

[0037] S300: from the start of excavation of the foundation pit 91 on the construction site 9 to the end of backfilling the foundation pit 91 after excavation, during this period of time, the underground engineering quantity is monitored multiple times according to the monitoring frequency t, wherein each monitoring method is: each drone 5 respectively flies in a direction perpendicular to the straight line arranged by the drone platform 4 and passes above the foundation pit 91 to reach the other end of the foundation pit 91. When the drone 5 is above the foundation pit 91, the laser rangefinder 52 detects the distance of the bottom surface of the foundation pit 91 vertically downward multiple times at a predetermined interval and records it; Specifically, Fig.13 As shown, the foundation pit 91 is divided into a plurality of primary plots D distributed in a matrix array, such as Fig.14 As shown, each primary plot D is further divided into a plurality of secondary plots E. For example, in this embodiment, each primary plot D is arranged in 5 rows and 12 columns, and the secondary plots E in a single primary plot D are arranged in 4 rows and 4 columns, with a total of 16. The number of the row of bracket groups 2 located on the right side of the figure mentioned in S200 above is 12, and the number of the assembled drone platforms 4 and the number of the drones 5 used are also 12. When executing S300, each drone 5 is respectively moved along Fig.13 The vertical direction is detected at the corresponding first-level plot D, and the laser rangefinder 52 detects the distance 5 times during each monitoring. More precisely, each second-level plot E is detected, so the laser rangefinder 52 detects the distance 5*16=80 times during each monitoring; More specifically, sampling vehicles 6 are parked in each of the 12 carports. During each monitoring, soil samples are taken from 80 secondary plots E. Fig.11 It can be seen that in the present embodiment, a single sampling vehicle 6 is equipped with 5 device racks 63, corresponding to each primary plot D respectively, and each device rack has 16 device slots 64. The openings of the unsampled soil barrels 7 are all facing downwards. When sampling, the second manipulator 65 is used to control each clamping block 69 to move above a soil barrel 7, and then the clamping block 69 is lowered, and then the second linear mechanism 67 is used to push each clamping block 69 to clamp the round rod 71 on the soil barrel 7. Preferably, the clamping position is located at the lower part of the outer peripheral side of the round rod 71. After clamping, the soil barrel 7 is taken out and then moved to one end of the vehicle body 61. Fig.10As shown in the case, it is moved to the end located at the lower right corner of the figure, and then the bottom of the soil taking tube 7 is made to touch the ground of the foundation pit 91. Next, the rotating plate 81 is rotated by the electric turntable 8 so that the striking plate 85 is located above the force plate 72 of the taken soil taking tube 7. Then the second linear mechanism 67 controls the clamping block 69 to slightly relax the clamping force, which only plays a role in limiting the round rod 71. Then the striking plate 85 is knocked on the force plate 72 by the third linear mechanism 83, and the soil taking tube 7 enters the soil to take soil. Then the third linear mechanism 83 is removed, and the round rod 71 is clamped again by the clamping block 69. The second manipulator 65 takes out the soil taking device 7, and then the soil taking device 7 is reversed by the second rotating motor 66. Then the second manipulator 65 transfers it with the force plate 72 facing downward and puts it into the narrow groove of the device groove 64 where the soil taking tube 7 just taken out is located. S400: After the construction of the underground part is completed, each drone platform 4 described in S200 is disassembled, and a drone platform 4 is assembled on one or two bracket groups 2, and then multiple drone platforms 4 are stacked and installed in sequence on the assembled drone platform 4. During installation, in two adjacent drone platforms 4, each rectangular tube 42 of the upper drone platform 4 is respectively sleeved on the corresponding top column 44 of the lower drone platform 4, and then multiple drones are respectively flown and parked on the platform 41 of each drone platform 4; Specifically, the bracket group 2 for assembling the drone platform 4 in S400 is located at Figure 1 , Figure 2 The bracket group 2 on the outer side of one end above the middle foundation pit 91, or Figure 3 After the UAV platform 4 is assembled on the bracket group 2 at the outer sides of the two ends above the middle foundation pit 91, the second transverse holes 43 and the first transverse holes 22 arranged in pairs are first connected by multiple screws, and then the circular filling frame 31 is assembled in the circular groove 3, and then cement is poured in the circular filling frame 31, so that the stability is improved when other UAV platforms 4 are assembled upwards later; More specifically, when stacking and assembling each drone platform 4, in order to improve stability, it is necessary to connect the second transverse hole 43 and the third transverse hole 45 arranged in pairs respectively by multiple screws. Generally speaking, it is necessary for personnel to take an elevator to install the screws, but in this embodiment, remote installation can be achieved through components on the drone 5, that is, at each position where a screw needs to be installed, the following operations can be performed: the staff can adjust the angle of the second camera module 54 for observation, and then first use two first manipulators 56 and use the air clamp 57 to clamp the screw and nut, preferably clamp the screw head at one end of the screwdriver head 591, and then through the flight of the drone 5 and the first manipulator 56 holding the nut, the screw passes through the second transverse hole 43 and the third transverse hole 45, and the tightening operation is completed by a first manipulator 56, a first linear mechanism 58, and a first rotary motor 59; S500: The engineering quantity of the ground part is monitored multiple times at the monitoring frequency t, wherein each monitoring method is: each drone 5 takes pictures around the ground part of the building at its height through the first camera module 53, and transmits the image to the ground staff. When this step is executed, if the power of the drone 5 is about to be insufficient, it returns to the ground to charge; Specifically, since the verification of the engineering quantity of the ground part is more complicated, including the verification of concrete structure, steel structure, masonry, etc., the first camera module 53 of the drone 5 mainly plays a recording role, and the engineering personnel will verify it based on the image. However, the drone 5 can still reduce the number of people going up and down and improve work efficiency when monitoring the ground part.

[0038] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A monitoring device for engineering quantity verification, characterized in that: include: A ground unit, comprising a plurality of bracket groups (2), wherein the bracket group (2) comprises four bottom columns (21) arranged at the four corners of a rectangle; A plurality of drone platforms (4) are respectively mounted on bracket groups (2) arranged in a linear array, or are stacked and installed on one or two bracket groups (2) in sequence in a vertical direction, wherein the drone platform (4) comprises a platform (41) having four rectangular tubes (42) disposed at its lower end, the openings of the rectangular tubes (42) matching with the bottom columns (21), and four top columns (44) matching with the openings of the rectangular tubes (42) disposed at the upper end of the platform (41); A plurality of unmanned aerial vehicles (5) are respectively docked on a platform (41), wherein the unmanned aerial vehicles (5) comprise a body (51), a laser rangefinder (52) is provided on the lower end surface of the body (51) for measuring the depth of a predetermined location in the foundation pit (91), and a first camera module (53) is provided on one end of the upper end surface of the body (51).

2. The monitoring device for engineering quantity verification according to claim 1 is characterized in that: A plurality of support groups (2) are arranged on one side above the foundation pit (91), and a plurality of support groups (2) are arranged outside one end or both ends above the foundation pit (91).

3. The monitoring device for engineering quantity verification according to claim 2 is characterized in that: A plurality of first transverse holes (22) are respectively provided in the vertical direction on the side surfaces of each bottom column (21) located at one end or both ends above the foundation pit (91), and a circular groove (3) is provided on the ground of the construction site (9) around the bracket group (2) where the bottom column (21) with the first transverse holes (22) is located.

4. The monitoring device for engineering quantity verification according to claim 3 is characterized in that: When monitoring the foundation pit (91), each drone platform (4) is respectively mounted on the bracket group (2); when monitoring the ground building, one drone platform (4) is mounted on the bracket group (2) having circular grooves (3) arranged on all sides, and a plurality of drone platforms (4) are sequentially mounted above the drone platform (4) located at the bottom in the vertical direction.

5. The monitoring device for engineering quantity verification according to claim 1 is characterized in that: A plurality of second transverse holes (43) are formed through the side surface of the rectangular tube (42), and a plurality of third transverse holes (45) matching the second transverse holes (43) are formed on the side surface of the top column (44).

6. The monitoring device for engineering quantity verification according to claim 1 is characterized in that: A pair of inclined plates (46) are provided at the upper end of the table plate (41), a top plate (47) is provided at the upper end of the inclined plates (46), and a first hanging ring (48) is provided on the top plate (47).

7. The monitoring device for engineering quantity verification according to claim 5, characterized in that: A second camera module (54) is provided at one end of the first camera module (53); a parts slot (55) and two first manipulators (56) are also provided on the upper end surface of the machine body (51); an air clamp (57) is provided at the movable end of the first manipulator (56); and the parts slot (55) is used to store screws and nuts.

8. The monitoring device for engineering quantity verification according to claim 7, characterized in that: The other end of the body (51) is provided with a fastening assembly for fastening the UAV platform (4) after it is assembled, comprising a first linear mechanism (58), an output end of which is provided with a first rotary motor (59), and an output end of the first rotary motor (59) is provided with a screwdriver head (591).

9. A monitoring method for engineering quantity verification, characterized in that: The monitoring device for engineering quantity verification according to any one of claims 1 to 8 comprises the following steps: S100: Setting monitoring frequency t; S200: Assembling drone platforms (4) on a plurality of bracket groups (2) arranged in a straight line array, and then placing a plurality of drones (5) on the platforms (41) of the drone platforms (4); S300: from the start of excavation of the foundation pit (91) at the construction site (9) to the end of backfilling the foundation pit (91) after excavation, during this period of time, the underground engineering quantity is monitored multiple times at a monitoring frequency t, wherein each monitoring method is as follows: each drone (5) flies in a direction perpendicular to the straight line on which the drone platform (4) is arranged and passes above the foundation pit (91) to reach the other end of the foundation pit (91), and when the drone (5) is above the foundation pit (91), the laser rangefinder (52) detects the distance of the bottom surface of the foundation pit (91) vertically downward multiple times at predetermined intervals and records it; S400: After the construction of the underground part is completed, each drone platform (4) described in S200 is disassembled, and the drone platform (4) is assembled on one or two bracket groups (2), and then a plurality of drone platforms (4) are stacked and installed in sequence on the assembled drone platform (4), and then a plurality of drones are respectively flown and parked on the platform (41) of each drone platform (4); S500: The engineering quantity of the ground part is monitored multiple times at a monitoring frequency t, wherein each monitoring method is as follows: each drone (5) takes pictures around the ground part building at its own height through a first camera module (53), and transmits the images to ground staff.

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