CN-121067745-B - Intelligent inspection method for construction site based on unmanned aerial vehicle

CN121067745BCN 121067745 BCN121067745 BCN 121067745BCN-121067745-B

Abstract

The invention discloses an intelligent inspection method for a construction site based on an unmanned aerial vehicle, which comprises longitudinal monitoring units, transverse monitoring units and the unmanned aerial vehicle, wherein the longitudinal monitoring units are connected to the outer surface of each longitudinal main material of an iron tower, the transverse monitoring units are connected to the outer surface of each transverse auxiliary material of the iron tower, all the longitudinal monitoring units extend along the length direction of the corresponding longitudinal main material, all the transverse monitoring units extend along the length direction of the corresponding transverse auxiliary material, each longitudinal monitoring unit is provided with a longitudinal chute extending along the length direction, each transverse monitoring unit is provided with a transverse chute extending along the length direction, the cross sections of the longitudinal chute and the transverse chute are the same, the unmanned aerial vehicle is provided with a traction rope, and the lower end of the traction rope is slidingly connected to the transverse chute or the longitudinal chute. The invention solves the technical problem that the unmanned aerial vehicle is applied to the construction of the iron tower to realize the early warning and alarming functions.

Inventors

WU YANWEI
ZHENG XU
XU MIN
Tao Guannan
GUAN GUANGBING
ZHANG XIAFEI
YANG WENQING
ZENG YU
Guo Mingkai

Assignees

广东电网有限责任公司广州供电局

Dates

Publication Date: 20260508
Application Date: 20250814

Claims (5)

1. The intelligent inspection method based on the unmanned aerial vehicle for the construction site is characterized by comprising a longitudinal monitoring unit, a transverse monitoring unit and the unmanned aerial vehicle; The outer surface of each longitudinal main material of the iron tower is connected with a longitudinal monitoring unit, the outer surface of each transverse auxiliary material of the iron tower is connected with a transverse monitoring unit, all the longitudinal monitoring units extend along the length direction of the corresponding longitudinal main material, and all the transverse monitoring units extend along the length direction of the corresponding transverse auxiliary material; Each longitudinal monitoring unit is provided with a longitudinal chute extending along the length direction, each transverse monitoring unit is provided with a transverse chute extending along the length direction, and the cross sections of the longitudinal chute and the transverse chute are the same; Each transverse chute is communicated with the adjacent longitudinal chute and forms a cross joint at the communicated position, the upper joint, the lower joint, the left joint and the right joint of each cross joint are respectively provided with a blocking mechanism, and the corresponding upper joint, lower joint, left joint or right joint is closed by the blocking mechanism, so that the corresponding longitudinal chute or transverse chute is blocked; The cross section shapes of all the longitudinal sliding grooves and the cross section shapes of all the transverse sliding grooves are round, and the tail end of the traction rope is provided with a smooth sphere which is matched with the round part of the opening; The outer surface of each longitudinal monitoring unit and the outer surface of each transverse monitoring unit are respectively provided with a deformation detection strip extending along the length direction, the inside of each strip-shaped deformation detection strip is respectively provided with a glass tube, fluorescent liquid is sealed in each glass tube, and each strip-shaped deformation detection strip is respectively provided with a gap for exposing the glass tube; the inside of every bar becomes the test strip all is equipped with the draw-in groove with glass pipe adaptation, and is equipped with the blotter between draw-in groove and the glass pipe.
2. The intelligent inspection method based on the unmanned aerial vehicle construction site of claim 1, wherein the blocking mechanism comprises an electromagnetic valve and a flashboard connected with a telescopic shaft of the electromagnetic valve, the electromagnetic valve is fixedly connected to the outer side of a corresponding upper interface, lower interface, left interface or right interface, and the flashboard is transversely and slidably connected to the corresponding upper interface, lower interface, left interface or right interface, and the flashboard is driven by the electromagnetic valve to extend into the upper interface, lower interface, left interface or right interface so as to further block a corresponding longitudinal chute or transverse chute.
3. The intelligent inspection method based on the unmanned aerial vehicle is characterized in that the blocking mechanism comprises a power supply, a wireless unit and an auxiliary control unit, and the control unit is respectively and electrically connected with the wireless unit, the power supply and the electromagnetic valve.
4. The intelligent inspection method based on the unmanned aerial vehicle is characterized by comprising a ground main control unit, wherein all auxiliary control units are connected with the main control unit in a wireless mode.
5. The intelligent inspection method based on the unmanned aerial vehicle on the construction site is characterized in that the iron tower comprises a plurality of layers of main material structures, each layer of main material structure comprises four longitudinal main materials, each layer of main material structure at least comprises a group of auxiliary material structures, and each group of auxiliary material structures comprises four transverse auxiliary materials positioned in the same horizontal plane; The ground main control unit is respectively connected with the unmanned aerial vehicle, the early warning unit and all the auxiliary control units, and the method comprises the following steps: S1, customizing a preliminary flight route according to a longitudinal main material and a transverse auxiliary material of an iron tower, wherein the flight route needs to pass through each longitudinal main material and each transverse auxiliary material; s2, starting from the lower end of the iron tower, clamping the smooth sphere into one of the longitudinal sliding grooves, and starting the unmanned aerial vehicle, wherein the unmanned aerial vehicle flies along the flight path; S3, before the unmanned aerial vehicle reaches a cross interface in the middle of flight, one blocking mechanism of the four blocking mechanisms connected in a cross way opens a flashboard under the control of the auxiliary control unit, the unmanned aerial vehicle flies in the direction of the opened flashboard, and the flashboard is reset after a smooth sphere passes through the opened flashboard; s4, the unmanned aerial vehicle is always aligned with the longitudinal monitoring unit or the transverse monitoring unit at the current position in the whole flight process, the unmanned aerial vehicle keeps the shooting distance of the camera stable by using the traction rope, the image data shot by the unmanned aerial vehicle is sent to the ground main control unit in real time, the ground main control unit analyzes whether leaked fluorescent liquid exists in the image data, if so, the early warning unit alarms and displays the specific liquid leakage level, and if not, the real-time deformation amount of the iron tower does not exceed the allowable maximum deformation amount.

Description

Intelligent inspection method for construction site based on unmanned aerial vehicle Technical Field The invention belongs to the technical field of construction early warning and alarming methods, and particularly relates to an intelligent inspection method for a construction site based on an unmanned aerial vehicle. Background The construction site inspection is to construct a defending line covering safety, quality, progress and compliance through active and high-frequency dynamic monitoring, so that the management problems of complex construction site, dense risk and numerous variables are fundamentally solved. Traditional manual inspection relies on manual walking or vehicle movement, cannot enter special environments such as high altitude, pits, high temperature and the like, and is long in time consumption and easy to miss hidden areas. For example, the construction area is not large, but the construction height can reach tens of meters and hundreds of meters, and the height of the iron tower is determined according to the insulation requirement and sag characteristic of the lead. In the construction process of the high-voltage line iron tower, the stress condition of main materials (vertical main bearing members at two sides or four corners of the tower body are 'frameworks' of the iron tower) and auxiliary materials (including horizontal angle steel and transverse auxiliary connection, and the effect is to strengthen the rigidity of the tower body and disperse loads) of the iron tower needs to be monitored in real time. The existing method for constructing the iron tower mostly adopts a common pole holding system, the pole holding system has a load monitoring function, the stress of main materials and auxiliary materials is not directly monitored, the stress condition of the iron tower is indirectly fed back through the pole holding system in the inspection of the construction site, and if the stress exceeds the early warning value of the pole holding system, the pole holding system automatically gives an early warning and gives an alarm prompt. However, the construction site inspection method has the following defects: The automatic early warning and alarming functions of the pole holding system are based on the fact that the maximum bearing values of main materials and auxiliary materials and corresponding safety coefficients are input into the pole holding system in advance, the real-time bearing value of the iron tower is deduced according to the self bearing force of the pole holding system, and when the real-time bearing value exceeds the theoretical maximum bearing values of the main materials and the auxiliary materials of the iron tower, the pole holding system gives an alarm. Therefore, the stress of the main material and the auxiliary material is indirectly obtained through calculation in the process of constructing the iron tower, and the stress is different from the actual stress, and even though the stress is calculated and analyzed in a complex manner, the early warning value and the actual value can still have obvious difference, so that the early warning is inaccurate and accidents are caused in a complex construction environment of the stress (such as windy weather and unfixed wind direction and real-time change). Therefore, the pre-warning and alarming functions of the existing pole holding system can not directly feed back whether the deformation of the iron tower exceeds the allowable maximum deformation under the condition of complex stress pair. Along with the rapid development of unmanned aerial vehicle technology, the technology of utilizing unmanned aerial vehicle early warning to report to the police has been applied to a plurality of industries, for example bulletin number CN112125184B, has disclosed a construction tower crane monitoring early warning method, and it utilizes unmanned aerial vehicle flight to shoot control and data result real-time receiving monitoring, obtains the early warning threshold through data analysis to carry out complete monitoring early warning to the tower crane of construction building site. However, the unmanned aerial vehicle is not applied to deformation early warning of the high-voltage line iron tower so far, and the reason is as follows: 1. if the manual operation unmanned aerial vehicle shoots images of all main materials and auxiliary materials of the iron tower, the operation difficulty is extremely high, and two reasons exist. Firstly, the camera of the unmanned aerial vehicle needs to keep a relatively fixed shooting distance to obtain an image with enough definition, but the key of keeping the fluctuation of the distance between the camera and the main material and the auxiliary material within an allowable range is the proficiency of a manipulator in operating the unmanned aerial vehicle. The height of the iron tower is calculated according to 100 meters, the total length of 4 main materials exceeds 400 meters, the length of aux