CN114423014A - Antenna downward inclination angle determining method and device, electronic equipment and storage medium - Google Patents
Antenna downward inclination angle determining method and device, electronic equipment and storage medium Download PDFInfo
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- CN114423014A CN114423014A CN202011077637.2A CN202011077637A CN114423014A CN 114423014 A CN114423014 A CN 114423014A CN 202011077637 A CN202011077637 A CN 202011077637A CN 114423014 A CN114423014 A CN 114423014A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The embodiment of the application provides an antenna downtilt angle determining method, an antenna downtilt angle determining device, electronic equipment and a storage medium, wherein the method comprises the following steps: determining a frame of an antenna to be detected based on point cloud data and a picture of the antenna to be detected, which are directly acquired by a laser surveying system; and determining the downward inclination angle of the antenna to be tested based on the frame of the antenna to be tested. According to the antenna downward inclination angle determining method and device, the electronic equipment and the storage medium, the frame of the antenna is determined based on the point cloud data and the picture of the antenna to be measured, which are directly acquired by the laser surveying system, and the downward inclination angle of the antenna is determined based on the frame of the antenna, so that the measuring precision is improved on the premise of reducing the calculated amount.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for determining a downtilt of an antenna, an electronic device, and a storage medium.
Background
Antenna downtilt is one of the important radio parameters for mobile communication network planning and network optimization. In a network planning stage, an antenna downward inclination angle is one of important parameters for determining a coverage distance of a base station, and in a network optimization stage, the antenna downward inclination angle is also one of important parameters for adjusting a cell coverage range and relieving inter-cell interference.
At present, based on a method for measuring an inclination angle by an unmanned aerial vehicle, the unmanned aerial vehicle flies around a target mobile communication base station antenna, simultaneously takes a picture, performs 3D reconstruction processing on the picture, and measures the inclination angle of the base station antenna of an antenna stereogram after 3D reconstruction by using an inclinometer.
However, with 3D reconstruction, the amount of computation is large and the complexity is also high. The three-dimensional reconstruction is easy to generate deformation and distortion at the edge, and the reliability of detection is reduced. When measuring the down tilt, errors occur, so that it is difficult to achieve the required error accuracy in 3D reconstruction.
Disclosure of Invention
The embodiment of the application provides an antenna downtilt angle determination method and device, electronic equipment and a storage medium, and aims to solve the technical problem that in the prior art, an antenna downtilt angle measurement result is not accurate.
The embodiment of the application provides an antenna downward inclination angle determining method, which comprises the following steps:
determining a frame of an antenna to be detected based on point cloud data and a picture of the antenna to be detected, which are directly acquired by a laser surveying system;
and determining the downward inclination angle of the antenna to be tested based on the frame of the antenna to be tested.
According to an embodiment of the present application, the method for determining a downtilt angle of an antenna to be measured based on a frame of the antenna to be measured specifically includes:
acquiring a first projection distance of an upper frame and a lower frame of the antenna to be detected on an X-Y plane, and acquiring a first length of a projection of a side frame of the antenna to be detected on a Z axis;
and determining the downward inclination angle of the antenna to be tested based on the first projection distance and the first length.
According to the method for determining the downward inclination angle of the antenna, the obtaining of the first projection distance of the upper frame and the lower frame of the antenna to be measured on the X-Y plane specifically includes:
determining a first linear equation where the projection of the upper frame of the antenna to be detected on the X-Y plane is located based on the digital point cloud coordinates of the upper frame of the antenna to be detected; determining a second linear equation where the projection of the lower frame of the antenna to be detected on the X-Y plane is located based on the digital point cloud coordinates of the lower frame of the antenna to be detected;
determining the first projection distance based on the first and second line equations.
According to an embodiment of the method for determining a downtilt angle of an antenna, the obtaining a first length of a projection of a side frame of the antenna to be measured on a Z axis specifically includes:
acquiring a first average value of coordinate values of all digital point cloud Z axes of an upper frame of the antenna to be detected; acquiring a second average value of coordinate values of all digital point cloud Z axes of a lower frame of the antenna to be detected;
determining the first length based on the first average and the second average.
According to an embodiment of the present application, in the method for determining a downtilt angle of an antenna to be measured, the mathematical expression for determining the downtilt angle of the antenna to be measured based on the first projection distance and the first length is as follows:
θ＝arctg(L/ΔZ)
where θ is a downtilt angle of the antenna, L is a first projection distance, and Δ Z is a first length.
According to an embodiment of the present application, before determining the first projection distance based on the first linear equation and the second linear equation, the method further includes:
and determining that the slope errors of the first linear equation and the second linear equation are within a preset error tolerance range.
According to an embodiment of the present application, before determining the first projection distance based on the first linear equation and the second linear equation, the method further includes:
determining that a significant linear relationship exists between the dependent variable and the independent variable of the first linear equation; and a significant linear relationship also exists between the dependent variable and the independent variable of the second linear equation.
An embodiment of the present application further provides an antenna downtilt angle determining apparatus, including:
the frame determining module is used for determining the frame of the antenna to be detected based on the point cloud data and the picture of the antenna to be detected, which are directly acquired by the laser surveying system;
and the angle determining module is used for determining the downward inclination angle of the antenna to be tested based on the frame of the antenna to be tested.
An embodiment of the present application further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the program to implement the steps of the antenna downtilt angle determination method according to any one of the above descriptions.
Embodiments of the present application also provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for determining an antenna downtilt according to any one of the above-mentioned embodiments.
According to the antenna downward inclination angle determining method and device, the electronic equipment and the storage medium, the frame of the antenna is determined based on the point cloud data and the picture of the antenna to be measured, which are directly acquired by the laser surveying system, and the downward inclination angle of the antenna is determined based on the frame of the antenna, so that the measuring precision is improved on the premise of reducing the calculated amount.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flowchart of a method for determining an antenna downtilt angle according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of an antenna downtilt angle determination principle provided by an embodiment of the present application;
fig. 3 is a schematic structural diagram of an antenna downtilt angle determining apparatus according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic flowchart of a method for determining an antenna downtilt angle according to an embodiment of the present application, and as shown in fig. 1, the embodiment of the present application provides a method for determining an antenna downtilt angle. The method comprises the following steps:
Specifically, first, a base station is subjected to panoramic scanning. Base station panoramic scanning is carried out on the base station through a laser surveying system using an unmanned aerial vehicle and the like as carriers, and digital point cloud data and photo data of the base station are acquired.
Then, the antenna is quickly identified. And rapidly identifying the antenna based on the photo and the digital point cloud, and determining the frame of the antenna. In the operation, the antenna frame can be quickly and accurately determined based on the photo and the digital point cloud without performing complex processing such as masking, segmentation, linear fitting and the like on a scanned image.
And 102, determining the downward inclination angle of the antenna to be tested based on the frame of the antenna to be tested.
Specifically, after the frame of the antenna to be tested is determined, the downward inclination angle of the antenna to be tested is determined based on the frame of the antenna to be tested.
For example, fig. 2 is a schematic diagram of a principle of determining a downtilt angle of an antenna provided in the embodiment of the present application, and as shown in fig. 2, a projection distance of upper and lower frames of the antenna to be measured on an X-Y plane may be determined based on the frames of the antenna to be measured, and a projection length of a side frame of the antenna to be measured on a Z axis may be determined. And determining the downward inclination angle of the antenna to be detected according to the projection distance of the upper and lower frames of the antenna to be detected on the X-Y plane and the projection length of the side frame of the antenna to be detected on the Z axis by utilizing the geometrical relationship.
According to the method for determining the downward inclination angle of the antenna, the frame of the antenna is determined based on the point cloud data and the picture of the antenna to be measured, which are directly acquired by the laser surveying system, and the downward inclination angle of the antenna is determined based on the frame of the antenna, so that the measuring precision is improved on the premise of reducing the calculated amount.
Based on any one of the above embodiments, the determining the downtilt angle of the antenna to be tested based on the frame of the antenna to be tested specifically includes:
acquiring a first projection distance of an upper frame and a lower frame of the antenna to be detected on an X-Y plane, and acquiring a first length of a projection of a side frame of the antenna to be detected on a Z axis;
and determining the downward inclination angle of the antenna to be tested based on the first projection distance and the first length.
Specifically, in the embodiment of the present application, the specific steps of determining the downtilt angle of the antenna to be tested based on the frame of the antenna to be tested are as follows:
first, determining a first projection distance of an upper frame and a lower frame of the antenna to be detected on an X-Y plane based on the frames of the antenna to be detected, and acquiring a first length of a projection of a side frame of the antenna to be detected on a Z axis.
Then, the downward inclination angle of the antenna to be measured is determined based on the first projection distance and the first length.
For example, as shown in fig. 2, the projection distance of the upper and lower frames of the antenna to be measured on the X-Y plane is L, and the projection length of the side frame of the antenna to be measured on the Z axis is Δ Z. And calculating the downward inclination angle of the antenna according to the inverse trigonometric function by using the geometrical relation.
According to the method for determining the downward inclination angle of the antenna, the frame of the antenna is determined based on the point cloud data and the picture of the antenna to be measured, which are directly acquired by the laser surveying system, and the downward inclination angle of the antenna is determined based on the frame of the antenna, so that the measuring precision is improved on the premise of reducing the calculated amount.
Based on any one of the above embodiments, the obtaining a first projection distance of the upper and lower frames of the antenna to be measured on the X-Y plane specifically includes:
determining a first linear equation where the projection of the upper frame of the antenna to be detected on the X-Y plane is located based on the digital point cloud coordinates of the upper frame of the antenna to be detected; determining a second linear equation where the projection of the lower frame of the antenna to be detected on the X-Y plane is located based on the digital point cloud coordinates of the lower frame of the antenna to be detected;
determining the first projection distance based on the first and second line equations.
Specifically, in the embodiment of the present application, the specific steps of obtaining the first projection distance of the upper and lower frames of the antenna to be measured on the X-Y plane are as follows:
firstly, determining a first linear equation where the projection of the upper frame of the antenna to be detected on an X-Y plane is located based on the digital point cloud coordinates of the upper frame of the antenna to be detected; and determining a second linear equation where the projection of the lower frame of the antenna to be detected on the X-Y plane is located based on the digital point cloud coordinates of the lower frame of the antenna to be detected.
For example, assume that the digital point cloud coordinates of an upper edge of the antenna bezel are as follows:
U＝{(x1,y1,z1),(x2,y2,z2)……(xn,yn,zn)}
the digital point cloud coordinates of one edge below the antenna border are as follows:
D＝{(x'1,y'1,z'1),(x'2,y'2,z'2)……(x'm,y'm,z'm)}
and performing curve fitting by a least square method according to the digital point cloud coordinates of the upper and lower edges to determine an equation of a straight line where the Euclidean projections of the upper and lower edges of the antenna frame are located.
The equation of a straight line where the European projection of one edge on the antenna frame on an X-Y plane is assumed to be: and y is ax + b. Wherein the content of the first and second substances,
the equation of a straight line where the European projection of one edge below the antenna frame on an X-Y plane is assumed to be: y ═ cx + d. Wherein the content of the first and second substances,
then, a first projection distance is determined based on the first and second line equations. The calculation formula of the Euclidean projection distance of the upper edge and the lower edge of the antenna frame on the X-Y plane is as follows:
according to the antenna downward inclination angle determining method provided by the embodiment of the application, the linear equations where the projections of the upper frame and the lower frame of the antenna on the X-Y plane are located are respectively determined based on the digital point cloud coordinates of the upper frame and the lower frame of the antenna, the projection distances of the upper frame and the lower frame on the X-Y plane are determined based on the linear equations, and the calculated amount is further reduced.
Based on any one of the above embodiments, the obtaining of the first length of the side frame of the antenna to be measured in the projection of the Z axis specifically includes:
acquiring a first average value of coordinate values of all digital point cloud Z axes of an upper frame of the antenna to be detected; acquiring a second average value of coordinate values of all digital point cloud Z axes of a lower frame of the antenna to be detected;
determining the first length based on the first average and the second average.
Specifically, in the embodiment of the present application, the specific steps of obtaining the first length of the projection of the side frame of the antenna to be measured on the Z axis are as follows:
firstly, obtaining a first average value of coordinate values of Z axes of all digital point clouds on an upper frame of an antenna to be detected; and acquiring a second average value of coordinate values of Z axes of all digital point clouds on a lower frame of the antenna to be detected.
The length of Euclidean projection of the frames at the left side and the right side of the antenna frame on the Z axis is the difference value of digital point clouds at the upper side and the lower side of the antenna frame on the Z axis. Because the digital point clouds are uniformly distributed on two sides of a straight line where the upper side and the lower side of the antenna frame are located, the arithmetic mean value of the Z-axis coordinates in the coordinates of the upper side and the lower side of the antenna frame is respectively taken, and the coordinate values of the upper side and the lower side of the antenna frame on the Z axis can be obtained.
The calculation formula of the average value of the coordinates of the straight line where the upper frame of the antenna is located on the Z axis is as follows:
the calculation formula of the average value of the coordinates of the straight line where the lower frame of the antenna is located on the Z axis is as follows:
then, a first length is determined based on the first average and the second average. The calculation formula is as follows:
ΔZ＝ZU-ZD
according to the antenna downward inclination angle determining method provided by the embodiment of the application, the projection length of the side frame of the antenna on the Z axis is determined based on the average value of the coordinate values of the Z axes of all the digital point clouds of the upper frame and the lower frame of the antenna, and the calculated amount is further reduced.
Based on any of the above embodiments, the mathematical expression for determining the downtilt angle of the antenna to be measured based on the first projection distance and the first length is as follows:
θ＝arctg(L/ΔZ)
where θ is a downtilt angle of the antenna, L is a first projection distance, and Δ Z is a first length.
Specifically, in the embodiment of the present application, as shown in fig. 2, the distance L between the upper and lower sides of the antenna frame in the X-Y axis euclidean projection, the length Δ Z between the upper and lower sides of the antenna frame in the Z axis, and the antenna down tilt angle θ are expressed by the following formula:
tgθ＝L/ΔZ
with L and Δ Z known, the antenna downtilt angle can be calculated by an arctangent function, as follows:
θ＝arctg(L/ΔZ)
it should be noted that: in the case of a known antenna length, the antenna downtilt angle may also be determined using a sine function or a cosine function, which is not described herein again.
According to the method for determining the downward inclination angle of the antenna, under the condition that the distance L of Euclidean projections of the upper side and the lower side of the antenna frame on an X-Y axis and the length delta Z of the upper side and the lower side of the antenna frame on a Z axis are known, the downward inclination angle of the antenna is determined by using a tangent function, and the calculated amount is further reduced.
Based on any embodiment above, before determining the first projection distance based on the first linear equation and the second linear equation, the method further includes:
and determining that the slope errors of the first linear equation and the second linear equation are within a preset error tolerance range.
Specifically, before determining the first projection distance based on the first linear equation and the second linear equation, the method further includes:
and determining that the slope errors of the first linear equation and the second linear equation are within a preset error tolerance range.
Because the European projections of the upper and lower sides of the antenna frame on the X-Y plane are parallel, compare a and c if
(p is an error that can be tolerated), the selection of the antenna frame is considered to be free from problems, otherwise the antenna needs to be re-identified and the antenna frame needs to be determined.
According to the method for determining the downward inclination angle of the antenna, the digital point cloud coordinates corresponding to the upper edge and the lower edge of the antenna frame are processed, errors caused by measurement accuracy and selection of the digital point cloud are eliminated, and the measurement accuracy is further improved.
Based on any embodiment above, before determining the first projection distance based on the first linear equation and the second linear equation, the method further includes:
determining that a significant linear relationship exists between the dependent variable and the independent variable of the first linear equation; and a significant linear relationship also exists between the dependent variable and the independent variable of the second linear equation.
Specifically, given a significance level α, a significance test (t-test) of the regression coefficients or a significance test (F-test) of the regression equation may be performed to determine whether there is a significant linear relationship between y and x in the two edge equations above and below the antenna bezel.
In this embodiment of the application, before determining the first projection distance based on the first linear equation and the second linear equation, the method further includes:
determining that a significant linear relationship exists between the dependent variable and the independent variable of the first linear equation; and there is also a significant linear relationship between the dependent and independent variables of the second linear equation.
According to the method for determining the downward inclination angle of the antenna, whether the y and the x in the upper edge equation and the lower edge equation of the antenna frame have the obvious linear relation or not is checked, and the measurement precision is further improved.
The antenna downward inclination angle determining method provided by the embodiment of the application depends on a laser surveying system based on carriers such as an unmanned aerial vehicle, does not need testers to climb an iron tower or a building roof, does not need the testers to be close to an antenna for measurement, greatly improves safety, and also enables the testers to be free from electromagnetic radiation.
The machine vision replaces the human vision, and the measurement precision is greatly improved.
The antenna is identified based on the combination of the digital point cloud and the picture, so that a complex image processing process is not needed, and the antenna is more accurate.
The curve fitting process is to reversely select the related digital point cloud by a straight line, so that the significant linear relation between y and x in the fitted curve equation can be basically determined.
And the related digital point cloud coordinates are subjected to error elimination processing, so that the calculation result of the downward inclination angle is more accurate.
Based on any one of the above embodiments, fig. 3 is a schematic structural diagram of an antenna downtilt angle determination apparatus provided in an embodiment of the present application, and as shown in fig. 3, an embodiment of the present application provides an antenna downtilt angle determination apparatus, including a frame determination module 301 and an angle determination module 302, where:
the frame determining module 301 is configured to determine a frame of the antenna to be detected based on point cloud data and a picture of the antenna to be detected, which are directly obtained by a laser surveying system; the angle determining module 302 is configured to determine a downtilt of the antenna to be tested based on a frame of the antenna to be tested.
The antenna downtilt angle determining apparatus provided in the embodiment of the present application may be configured to execute the method in the corresponding embodiment, and specific steps of executing the method in the corresponding embodiment by the apparatus provided in the embodiment are the same as those in the corresponding embodiment, and the same technical effects may be achieved.
Fig. 4 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 4: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. Processor 410 may invoke logic instructions in memory 430 to perform a method of antenna downtilt determination, the method comprising:
determining a frame of an antenna to be detected based on point cloud data and a picture of the antenna to be detected, which are directly acquired by a laser surveying system;
and determining the downward inclination angle of the antenna to be tested based on the frame of the antenna to be tested.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present application also provides a computer program product, where the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, where the computer program includes a program or instructions, and when the program or instructions are executed by a computer, the computer is capable of executing the method for determining an antenna downtilt angle provided by the above-mentioned method embodiments, where the method includes:
determining a frame of an antenna to be detected based on point cloud data and a picture of the antenna to be detected, which are directly acquired by a laser surveying system;
and determining the downward inclination angle of the antenna to be tested based on the frame of the antenna to be tested.
In another aspect, the present application provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented by a processor to perform the method for determining an antenna downtilt angle provided in the foregoing embodiments, and the method includes:
determining a frame of an antenna to be detected based on point cloud data and a picture of the antenna to be detected, which are directly acquired by a laser surveying system;
and determining the downward inclination angle of the antenna to be tested based on the frame of the antenna to be tested.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A method for determining antenna downtilt, comprising:
determining a frame of an antenna to be detected based on point cloud data and a picture of the antenna to be detected, which are directly acquired by a laser surveying system;
and determining the downward inclination angle of the antenna to be tested based on the frame of the antenna to be tested.
2. The method according to claim 1, wherein the determining the downtilt of the antenna to be tested based on the frame of the antenna to be tested specifically includes:
acquiring a first projection distance of an upper frame and a lower frame of the antenna to be detected on an X-Y plane, and acquiring a first length of a projection of a side frame of the antenna to be detected on a Z axis;
and determining the downward inclination angle of the antenna to be tested based on the first projection distance and the first length.
3. The method for determining the downtilt angle of the antenna according to claim 2, wherein the obtaining of the first projection distance of the upper and lower frames of the antenna to be measured on the X-Y plane specifically includes:
determining a first linear equation where the projection of the upper frame of the antenna to be detected on the X-Y plane is located based on the digital point cloud coordinates of the upper frame of the antenna to be detected; determining a second linear equation where the projection of the lower frame of the antenna to be detected on the X-Y plane is located based on the digital point cloud coordinates of the lower frame of the antenna to be detected;
determining the first projection distance based on the first and second line equations.
4. The method for determining the downtilt angle of the antenna according to claim 2, wherein the obtaining of the first length of the projection of the side frame of the antenna to be measured on the Z axis specifically includes:
acquiring a first average value of coordinate values of all digital point cloud Z axes of an upper frame of the antenna to be detected; acquiring a second average value of coordinate values of all digital point cloud Z axes of a lower frame of the antenna to be detected;
determining the first length based on the first average and the second average.
5. The method of claim 2, wherein the mathematical expression for determining the downtilt of the antenna under test based on the first projection distance and the first length is as follows:
θ＝arctg(L/ΔZ)
where θ is a downtilt angle of the antenna, L is a first projection distance, and Δ Z is a first length.
6. The method of claim 3, wherein prior to determining the first standoff distance based on the first and second line equations, further comprising:
and determining that the slope errors of the first linear equation and the second linear equation are within a preset error tolerance range.
7. The method of claim 3, wherein prior to determining the first standoff distance based on the first and second line equations, further comprising:
determining that a significant linear relationship exists between the dependent variable and the independent variable of the first linear equation; and a significant linear relationship also exists between the dependent variable and the independent variable of the second linear equation.
8. An antenna downtilt angle determination apparatus, comprising:
the frame determining module is used for determining the frame of the antenna to be detected based on the point cloud data and the picture of the antenna to be detected, which are directly acquired by the laser surveying system;
and the angle determining module is used for determining the downward inclination angle of the antenna to be tested based on the frame of the antenna to be tested.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the steps of the antenna downtilt determination method according to any one of claims 1 to 7.
10. A non-transitory computer readable storage medium, having stored thereon a computer program, which, when being executed by a processor, performs the steps of the antenna downtilt determination method according to any one of claims 1 to 7.
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