CN110896331B - Method, device and storage medium for measuring antenna engineering parameters - Google Patents
Method, device and storage medium for measuring antenna engineering parameters Download PDFInfo
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- CN110896331B CN110896331B CN201811066273.0A CN201811066273A CN110896331B CN 110896331 B CN110896331 B CN 110896331B CN 201811066273 A CN201811066273 A CN 201811066273A CN 110896331 B CN110896331 B CN 110896331B
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- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
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Abstract
The embodiment of the invention discloses a method, a device and a storage medium for measuring antenna engineering parameters, which comprises the following steps: acquiring video stream data shot by a preset device and corresponding gesture data of the preset device; extracting a preset frame image from the video stream data, and acquiring a sub-image in a preset area from the extracted image; determining engineering parameters of the antenna according to the sub-images and the attitude data; wherein the engineering parameters include at least one of: down dip, azimuth, hang height, position information. The embodiment of the invention determines the engineering parameters of the antenna by performing frame extraction processing on the video stream data shot by the predetermined equipment and combining the attitude data of the predetermined equipment without any manual participation, thereby avoiding the influence of human factors on the measurement result in the measurement process and improving the measurement accuracy and efficiency.
Description
Technical Field
Embodiments of the present invention relate to, but not limited to, antenna and image processing technologies, and more particularly, to a method, an apparatus, and a storage medium for measuring antenna engineering parameters.
Background
The engineering parameters of the mobile base station antenna have a decisive influence on the electromagnetic coverage of the antenna and the network optimization of a communication system, and when the posture of the antenna changes due to the influence of external environmental factors, the coverage range of the base station may change, and more seriously, a signal blind area may be generated at partial positions, and meanwhile, serious frequency interference in the system is caused. In order to avoid the above situation, engineering parameters of the base station antenna need to be measured periodically to ensure the correctness of the attitude of the base station antenna.
The existing method for measuring the antenna engineering parameters of the base station needs a large amount of manual work, so that the accuracy of measured data is low, and the efficiency is low.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a storage medium for measuring antenna engineering parameters, which can improve the measurement accuracy and efficiency.
The embodiment of the invention provides a method for measuring antenna engineering parameters, which comprises the following steps:
acquiring video stream data shot by preset equipment and corresponding attitude data of the preset equipment;
extracting a preset frame image from the video stream data, and acquiring a sub-image in a preset area from the extracted image;
determining engineering parameters of the antenna according to the sub-images and the attitude data; wherein the engineering parameters include at least one of: declination angle, azimuth angle, hang height, position information.
In the embodiment of the present invention, the determining the engineering parameters of the antenna according to the sub-image and the attitude data includes:
identifying line segments from the sub-images;
when a line segment meeting a first preset condition exists in the identified line segments, determining the azimuth angle according to the attitude data, and taking the position information of the preset equipment in the attitude data as the position information of the antenna;
wherein, the line segment meeting the first preset condition comprises: and the longest line segment forms an included angle with the horizontal direction of the sub-image, which is less than or equal to a first angle threshold value.
In an embodiment of the present invention, wherein the determining an azimuth from the attitude data comprises:
taking the sum of compass information in the attitude data and 180 degrees as the azimuth angle;
or, when the predetermined device is an unmanned aerial vehicle, taking the sum of compass information and 180 ° in the attitude data, the roll angle of the pan-tilt in the attitude data, the roll angle of the unmanned aerial vehicle in the attitude data, and the sum of the line segment meeting the first preset condition and the included angle of the sub-image in the horizontal direction as the azimuth angle.
In the embodiment of the present invention, the determining the engineering parameters of the antenna according to the sub-image and the attitude data includes:
identifying line segments from the sub-images; when a line segment meeting a second preset condition exists in the identified line segments, determining the downward inclination angle according to an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image, and taking the height of a preset device in the attitude information as the hanging height of the antenna;
wherein, the line segment meeting the second preset condition comprises: and the longest line segment forms an included angle with the vertical direction of the sub-image, which is less than or equal to a second angle threshold value.
In this embodiment of the present invention, the determining the downtilt according to the included angle between the line segment satisfying the second preset condition and the vertical direction of the sub-image includes:
taking the included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image as the downward inclination angle;
or, when the predetermined device is an unmanned aerial vehicle, taking a difference between an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image, a roll angle of the pan-tilt in the attitude data, and a roll angle of the unmanned aerial vehicle in the attitude data as the downward inclination angle.
The embodiment of the invention provides a device for measuring antenna engineering parameters, which comprises:
the first acquisition module is used for acquiring video stream data shot by preset equipment and corresponding attitude data;
the second acquisition module is used for extracting a preset frame image from the video stream data and acquiring a sub-image in a preset area from the extracted image;
the determining module is used for determining the engineering parameters of the antenna according to the sub-images and the attitude data; wherein the engineering parameters include at least one of: down dip, azimuth, hang height, position information.
The embodiment of the present invention provides an apparatus for measuring antenna engineering parameters, which includes a processor and a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed by the processor, the steps of any one of the above methods for measuring antenna engineering parameters are implemented.
An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any one of the above methods for measuring antenna engineering parameters.
The embodiment of the invention comprises the following steps: acquiring video stream data shot by preset equipment and corresponding attitude data of the preset equipment; extracting a preset frame image from the video stream data, and acquiring a sub-image in a preset area from the extracted image; determining engineering parameters of the antenna according to the sub-images and the attitude data; wherein the engineering parameters include at least one of: down dip, azimuth, hang height, position information. The embodiment of the invention determines the engineering parameters of the antenna by performing frame extraction processing on the video stream data shot by the predetermined equipment and combining the attitude data of the predetermined equipment without any manual participation, thereby avoiding the influence of human factors on the measurement result in the measurement process and improving the measurement accuracy and efficiency.
Additional features and advantages of embodiments of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of the invention. The objectives and other advantages of the embodiments of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the examples of the invention serve to explain the principles of the embodiments of the invention and not to limit the embodiments of the invention.
Fig. 1 is a flowchart of a method for measuring antenna engineering parameters according to an embodiment of the present invention;
fig. 2 is a schematic view of an attitude of an aerial vehicle looking down on a shooting antenna according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the imaging principle of an embodiment of the invention;
FIG. 4 is a schematic view of an antenna elevation measurement according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus for measuring antenna engineering parameters according to another embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments of the present invention may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Referring to fig. 1, an embodiment of the present invention provides a method for measuring antenna engineering parameters, including:
and step 100, acquiring video stream data shot by a preset device and corresponding posture data of the preset device.
In the embodiment of the present invention, the predetermined device may be an unmanned aerial vehicle or a mobile terminal.
In an embodiment of the present invention, the gesture data of the predetermined device includes: compass information, attitude angle of a predetermined device, position information of a predetermined device, altitude of a predetermined device.
The compass information represents the azimuth of the preset equipment, namely the azimuth of the southeast, the northwest and the east, generally, the compass information is represented by an included angle with the true north direction, 0-90 degrees represents any azimuth between the true north and the true east, 90-180 degrees represents any azimuth between the true east and the true south, 180-270 degrees represents any azimuth between the true south and the true west, 270-360 degrees represents any azimuth between the true west and the true north, and the specific azimuth can be calculated according to the angle value.
When the predetermined equipment is unmanned aerial vehicle, still include the attitude angle of cloud platform.
Wherein the attitude angle comprises a roll angle, a pitch angle and a yaw angle.
Wherein the location information includes longitude and latitude.
In the embodiment of the invention, when the predetermined device is the unmanned aerial vehicle, video stream data shot by the unmanned aerial vehicle can be transmitted to the mobile terminal in real time for processing; when the predetermined device is a mobile terminal, the mobile terminal can directly process the shot video stream data in real time.
In the embodiment of the invention, the video stream data shot by the predetermined device and the posture data of the predetermined device are updated in real time, so that during two adjacent times of obtaining the posture data of the predetermined device, the posture data of the predetermined device obtained last time is taken as the standard.
In the embodiment of the present invention, the preset area may be set by a user, and when the video stream data is acquired, the antenna is placed in the preset area, it should be noted that the whole antenna needs to be placed in the preset area.
When the predetermined device is an unmanned aerial vehicle, video stream data transmitted by the unmanned aerial vehicle in real time can be displayed on the mobile terminal, and when the antenna is not arranged in the preset area or only part of the antenna is arranged in the preset area, the mobile terminal can control the unmanned aerial vehicle to move based on a control instruction of a user, so that the whole antenna is arranged in the preset area.
In the embodiment of the present invention, when extracting a preset frame image from video stream data, the image may be extracted at will, which is not limited in the embodiment of the present invention.
102, determining engineering parameters of the antenna according to the sub-images and the attitude data; wherein the engineering parameters include at least one of: down dip, azimuth, hang height, position information.
In the embodiment of the present invention, determining the engineering parameters of the antenna according to the sub-image and the attitude data includes:
identifying line segments from the sub-images; when a line segment meeting a first preset condition exists in the identified line segments, determining the azimuth angle according to the attitude data, and taking the position information of the preset equipment in the attitude data as the position information of the antenna; wherein the line segment meeting the first preset condition comprises: and the longest line segment forms an included angle with the horizontal direction of the sub-image, which is less than or equal to a first angle threshold value.
The line segments may be identified from the sub-images by using technical means known to those skilled in the art, and the specific identification method is not used to limit the protection scope of the present invention, and will not be described herein again.
Wherein determining the azimuth from the attitude data comprises:
taking the sum of compass information in the attitude data and 180 degrees as the azimuth angle;
or, when the predetermined device is an unmanned aerial vehicle, taking the sum of compass information and 180 ° in the attitude data, the roll angle of the pan-tilt in the attitude data, the roll angle of the unmanned aerial vehicle in the attitude data, and the sum of the line segment meeting the first preset condition and the included angle of the sub-image in the horizontal direction as the azimuth angle.
Wherein, when looking towards the front of the drone, if the drone is rotating in a clockwise direction, the roll angle of the drone is positive; if the drone is rotating in the counter-clockwise direction, the roll angle of the drone is negative.
Similarly, if the cradle head rotates in the clockwise direction, the roll angle of the cradle head is positive; if the holder rotates along the counterclockwise direction, the roll angle of the holder is negative.
Similarly, if the line segment meeting the first preset condition rotates clockwise, the included angle between the line segment meeting the first preset condition and the horizontal direction of the sub-image is positive; if the line segment meeting the first preset condition rotates along the anticlockwise direction, the included angle between the line segment meeting the first preset condition and the horizontal direction of the sub-image is negative.
In another embodiment of the invention, when no line segment meeting the first preset condition exists in the identified line segments, it is described that the shot picture does not meet the requirement of calculating the engineering parameters of the antenna, and the shooting angle needs to be changed, at this time, the shooting angle can be changed by moving the predetermined device, and when the predetermined device is an unmanned aerial vehicle, the unmanned aerial vehicle can be controlled by the mobile terminal to change the shooting angle; when the predetermined device is a mobile device, the photographing angle may be changed by the user moving the mobile device.
The principle of the above-described azimuth determination method is briefly described below.
When the longest line segment parallel to the horizontal direction of the sub-image exists in the sub-image (that is, an included angle between the longest line segment and the horizontal direction of the sub-image is 0 °), the camera looks down the shooting antenna, as shown in fig. 2, and can respectively pass through the unmanned aerial vehicle to make a median plane, that is, a plane O, and pass through the antenna to make a median plane, that is, a plane P. Since the camera on the drone is only moving up and down, plane O also bisects the camera, thus being perpendicular to the true imaging plane G.
In addition, the plane P is perpendicular to the line segment L on the antenna, and as shown in fig. 2, in order to represent the azimuth angle of the antenna using the opposite direction of the orientation of the predetermined device (i.e., the sum of the compass information in the above-mentioned attitude data and 180 °) at the time of photographing, the plane O must be parallel to the plane P, and then the line segment L is perpendicular to the plane O.
Since the imaging plane G is perpendicular to the plane O, the line segment L is parallel to the imaging plane G.
As shown in fig. 3, since the image formed by the optical system is an inverted image, for the convenience of observation, the image can be projected to the symmetrical imaging plane G ' with respect to the optical center C point with respect to the imaging plane G, so the line segment L is parallel to the symmetrical imaging plane G ', and thus the projection of the line segment L on the symmetrical imaging plane G ' is an erect image. The projection of the line segment L on the symmetrical imaging plane G 'is the line segment L', so the line segment L 'is parallel to the line segment L, and the line segment L' is perpendicular to the plane O. While the x-axis of the image coordinates in the symmetrical imaging plane G' is also perpendicular to the plane O. So, eventually there is a line segment L' parallel to the x-axis.
Therefore, when the image L' of the line L at the top of the antenna in the image is parallel to the x-axis (i.e., the horizontal direction of the sub-image), the predetermined device is facing the antenna, and the opposite direction of the predetermined device is the azimuth angle of the antenna.
Of course, in the actual shooting process, the plane O is not parallel to the plane P due to the deviation of the predetermined device itself, so as to bring about a measurement error, and when the predetermined device is an unmanned aerial vehicle, there are mainly the following deviations:
the deviation of the roll angle of a tripod head on the unmanned aerial vehicle causes the rotation of the shot picture;
the inclination of the flight state of the unmanned aerial vehicle causes the rotation of the shot picture;
the slope of the line segment itself identified from the sub-image.
In the above-mentioned deviation, the measurement error that the skew of the roll angle of the cloud platform on because unmanned aerial vehicle leads to can compensate through the roll angle of cloud platform, because the measurement error that the slope of unmanned aerial vehicle state of flight itself leads to can compensate through unmanned aerial vehicle's roll angle, because the measurement error that the slope of the line segment self that discerns from the subimage leads to can compensate through the contained angle of this line segment and the horizontal direction of subimage. Therefore, the azimuth angle of the antenna can be obtained as the sum of compass information in the attitude data and 180 degrees, the roll angle of the pan-tilt in the attitude data, the roll angle of the unmanned aerial vehicle in the attitude data, and the included angle between the line segment meeting the first preset condition and the horizontal direction of the sub-image.
In the embodiment of the present invention, determining the engineering parameters of the antenna according to the sub-image and the attitude data includes:
identifying line segments from the sub-images; when a line segment meeting a second preset condition exists in the identified line segments, determining the downward inclination angle according to an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image, and taking the height of a preset device in the attitude information as the hanging height of the antenna;
wherein, the line segment meeting the second preset condition comprises: and the longest line segment forms an included angle with the vertical direction of the sub-image, which is smaller than or equal to a second angle threshold value.
Wherein, the determining the downtilt angle according to the included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image comprises:
taking the included angle between the line segment meeting the second preset condition and the vertical direction of the subimage as the downward inclination angle;
or, when the predetermined device is an unmanned aerial vehicle, taking a difference between an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image, a roll angle of the pan-tilt in the attitude data, and a roll angle of the unmanned aerial vehicle in the attitude data as the downtilt angle.
Wherein, when looking towards the front of the drone, if the drone is rotating in a clockwise direction, the roll angle of the drone is positive; if the drone is rotating in a counter-clockwise direction, the roll angle of the drone is negative.
Similarly, if the cradle head rotates in the clockwise direction, the roll angle of the cradle head is positive; if the holder rotates along the counterclockwise direction, the roll angle of the holder is negative.
In another embodiment of the invention, when no line segment meeting the second preset condition exists in the identified line segments, it is described that the shot picture does not meet the requirement of calculating the engineering parameters of the antenna, and the shooting angle needs to be changed, at this time, the shooting angle can be changed by moving the predetermined device, and when the predetermined device is an unmanned aerial vehicle, the unmanned aerial vehicle can be controlled by the mobile terminal to change the shooting angle; when the predetermined device is a mobile device, the photographing angle may be changed by the user moving the mobile device.
The principle of the above-described declination angle determination method will be briefly described below.
And identifying the sub-image, and identifying a line segment which is the longest in the sub-image and has an included angle with the vertical direction not larger than a second angle threshold (such as 21 degrees) as a line segment K which is the side edge of the antenna.
When measuring the downtilt (also called the pitch angle) of antenna through unmanned aerial vehicle, the camera level on the unmanned aerial vehicle is shot, and unmanned aerial vehicle need just be to the side of antenna. As shown in fig. 4, the plane D is the inner surface of the antenna, i.e., the surface on which the fixture is mounted. At this time, the plane D is perpendicular to the imaging plane G of the camera, so the plane D is also perpendicular to the symmetrical imaging plane G ', and the antenna top line segment L is also perpendicular to the symmetrical imaging plane G'. In FIG. 4, the side line K is parallel to the symmetric image plane G'. It is apparent from fig. 3 that the projection K 'on the symmetrical imaging plane G' is parallel to the line segment K. In fig. 4, the straight line M is a straight line perpendicular to the ground, and obviously the straight line M is parallel to the symmetrical imaging plane G'. Therefore, the projection M ' of the straight line M on the symmetrical imaging plane G ' is parallel to the straight line M, and it is apparent that the straight line M ' is parallel to the y-axis of the image coordinate system. Therefore, the included angle between the line segment K and the straight line M is the pitch angle, and can be obtained by calculating the included angle between the projection K' and the y axis.
Of course, in the actual shooting process, because the deviation of the predetermined device itself can bring about measurement error, when the predetermined device is an unmanned aerial vehicle, there are mainly the following deviations:
the deviation of the roll angle of a tripod head on the unmanned aerial vehicle causes the rotation of the shot picture;
the inclination of the flight state of the unmanned aerial vehicle itself causes the rotation of the photographed picture.
In the above-mentioned deviation, the measuring error that the skew of the roll angle of the cloud platform on because unmanned aerial vehicle leads to can compensate through the roll angle of cloud platform, because the measuring error that the slope of unmanned aerial vehicle state of flight itself leads to can compensate through unmanned aerial vehicle's roll angle. Therefore, the difference between the included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image, the roll angle of the holder in the attitude data and the roll angle of the unmanned aerial vehicle in the attitude data can be obtained.
The unmanned aerial vehicle used in the embodiment of the invention belongs to the puck series of the unmanned aerial vehicle in Xinjiang, the angle jitter amount of the holder is 0.02 degrees, and according to the above calculation and analysis, the jitter amount is small, and the measurement result is hardly influenced. During flying, the hovering precision of the unmanned aerial vehicle is 0.1m in the vertical direction, the value is small, no matter pitch angle measurement or azimuth angle measurement is conducted, the influence on the result after projection is small, the influence on the final calculation error is analyzed to be within 0.05 degrees, and almost no influence is caused. The compass precision of the unmanned aerial vehicle is 0.01 degrees, and the azimuth error obtained by final measurement is hardly influenced.
The embodiment of the invention determines the engineering parameters of the antenna by performing frame extraction processing on the video stream data shot by the predetermined equipment and combining the attitude data of the predetermined equipment without any manual participation, thereby avoiding the influence of human factors on the measurement result in the measurement process and improving the measurement accuracy and efficiency.
Referring to fig. 5, another embodiment of the present invention provides an apparatus for measuring antenna engineering parameters, including:
a first obtaining module 501, configured to obtain video stream data and corresponding gesture data captured by a predetermined device;
a second obtaining module 502, configured to extract a preset frame image from the video stream data, and obtain a sub-image in a preset area from the extracted image;
a determining module 503, configured to determine an engineering parameter of the antenna according to the sub-image and the attitude data; wherein the engineering parameters include at least one of: declination angle, azimuth angle, hang height, position information.
In this embodiment of the present invention, the determining module 503 is specifically configured to:
identifying line segments from the sub-images;
when a line segment meeting a first preset condition exists in the identified line segments, determining the azimuth angle according to the attitude data, and taking the position information of the preset equipment in the attitude data as the position information of the antenna;
wherein, the line segment meeting the first preset condition comprises: and the longest line segment forms an included angle with the horizontal direction of the sub-image, which is smaller than or equal to a first angle threshold value.
In this embodiment of the present invention, the determining module 503 is specifically configured to determine the azimuth angle according to the attitude data in the following manner:
taking the sum of compass information in the attitude data and 180 degrees as the azimuth angle;
or, when the predetermined device is an unmanned aerial vehicle, taking the sum of compass information and 180 ° in the attitude data, the roll angle of the pan-tilt in the attitude data, the roll angle of the unmanned aerial vehicle in the attitude data, and the sum of the line segment meeting the first preset condition and the included angle of the sub-image in the horizontal direction as the azimuth angle.
In this embodiment of the present invention, the determining module 503 is specifically configured to:
identifying line segments from the sub-images; when a line segment meeting a second preset condition exists in the identified line segments, determining the downward inclination angle according to an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image, and taking the height of a preset device in the attitude information as the hanging height of the antenna;
wherein the line segment meeting the second preset condition comprises: and the longest line segment forms an included angle with the vertical direction of the sub-image, which is less than or equal to a second angle threshold value.
In this embodiment of the present invention, the determining module 503 is specifically configured to determine the downtilt angle according to an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image, by using the following method:
taking the included angle between the line segment meeting the second preset condition and the vertical direction of the subimage as the downward inclination angle;
or, when the predetermined device is an unmanned aerial vehicle, taking a difference between an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image, a roll angle of the pan-tilt in the attitude data, and a roll angle of the unmanned aerial vehicle in the attitude data as the downtilt angle.
The specific implementation process of the apparatus for measuring antenna engineering parameters is the same as that of the method for measuring antenna engineering parameters in the foregoing embodiment, and is not described herein again.
Another embodiment of the present invention provides an apparatus for measuring antenna engineering parameters, which includes a processor and a computer-readable storage medium, wherein the computer-readable storage medium has instructions stored therein, and when the instructions are executed by the processor, the instructions implement the steps of any one of the above methods for measuring antenna engineering parameters.
Another embodiment of the present invention proposes a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of any one of the above-mentioned methods for measuring antenna engineering parameters.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as is well known to those skilled in the art.
Although the embodiments of the present invention have been described above, the descriptions are only used for understanding the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the embodiments of the invention as defined by the appended claims.
Claims (6)
1. A method of measuring antenna engineering parameters, comprising:
acquiring video stream data shot by preset equipment and corresponding attitude data of the preset equipment;
extracting a preset frame image from the video stream data, and acquiring a sub-image in a preset area from the extracted image;
identifying line segments from the sub-images, and determining engineering parameters of the antenna according to the line segments meeting a first preset condition or a second preset condition in the identified line segments and the attitude data; wherein the engineering parameters include at least one of: dip angle, azimuth angle, hanging height and position information;
when a line segment meeting a first preset condition exists in the identified line segments, determining the azimuth angle according to the attitude data, and taking the position information of the preset equipment in the attitude data as the position information of the antenna; wherein the line segment meeting the first preset condition comprises: the longest line segment and the included angle between the line segment and the horizontal direction of the sub-image are smaller than or equal to a first angle threshold value;
when a line segment meeting a second preset condition exists in the identified line segments, determining the downward inclination angle according to an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image, and taking the height of a preset device in the attitude information as the hanging height of the antenna; wherein the line segment meeting the second preset condition comprises: and the longest line segment forms an included angle with the vertical direction of the sub-image, which is smaller than or equal to a second angle threshold value.
2. The method of claim 1, wherein determining an azimuth from pose data comprises:
taking the sum of compass information in the attitude data and 180 degrees as the azimuth angle;
or, when the predetermined device is an unmanned aerial vehicle, taking the sum of compass information and 180 ° in the attitude data as the azimuth, or taking the roll angle of the pan-tilt in the attitude data as the azimuth, or taking the sum of the roll angle of the unmanned aerial vehicle in the attitude data and an included angle between the line segment meeting the first preset condition and the horizontal direction of the sub-image as the azimuth.
3. The method according to claim 1, wherein the determining the downtilt according to the included angle between the line segment satisfying the second preset condition and the vertical direction of the sub-image comprises:
taking the included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image as the downward inclination angle;
or, when the predetermined device is an unmanned aerial vehicle, taking a difference between an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image and a roll angle of the pan-tilt in the attitude data as the downtilt angle, or taking a difference between an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image and a roll angle of the unmanned aerial vehicle in the attitude data as the downtilt angle.
4. An apparatus for measuring antenna engineering parameters, comprising:
the first acquisition module is used for acquiring video stream data shot by preset equipment and corresponding attitude data of the preset equipment;
the second acquisition module is used for extracting a preset frame image from the video stream data and acquiring a sub-image in a preset area from the extracted image;
the determining module is used for identifying line segments from the sub-images and determining engineering parameters of the antenna according to the line segments meeting a first preset condition or a second preset condition in the identified line segments and the attitude data; wherein the engineering parameters include at least one of: dip angle, azimuth angle, hanging height and position information;
the determining module is configured to determine the azimuth angle according to the attitude data when a line segment meeting a first preset condition exists in the identified line segments, and use position information of a predetermined device in the attitude data as position information of the antenna; wherein, the line segment meeting the first preset condition comprises: the longest line segment and the included angle between the line segment and the horizontal direction of the sub-image are smaller than or equal to a first angle threshold value;
the determining module is used for determining the downward inclination angle according to an included angle between the line segment meeting the second preset condition and the vertical direction of the sub-image when the line segment meeting the second preset condition exists in the identified line segments, and taking the height of the preset equipment in the attitude information as the hanging height of the antenna; wherein the line segment meeting the second preset condition comprises: and the longest line segment forms an included angle with the vertical direction of the sub-image, which is smaller than or equal to a second angle threshold value.
5. An apparatus for measuring antenna engineering parameters, comprising a processor and a computer readable storage medium, in which a computer program is stored, characterized in that, when the computer program is executed by the processor, the steps of the method for measuring antenna engineering parameters according to any of claims 1 to 3 are implemented.
6. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of measuring antenna engineering parameters according to any one of claims 1 to 3.
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| CN201811066273.0A CN110896331B (en) | 2018-09-13 | 2018-09-13 | Method, device and storage medium for measuring antenna engineering parameters |
| PCT/CN2019/078605 WO2020052207A1 (en) | 2018-09-13 | 2019-03-19 | Method and device for measuring engineering parameters of antenna |
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| CN114423014A (en) * | 2020-10-10 | 2022-04-29 | 中国移动通信集团设计院有限公司 | Antenna downward inclination angle determining method and device, electronic equipment and storage medium |
| CN113390386A (en) * | 2021-05-28 | 2021-09-14 | 广东纳萨斯通信科技有限公司 | Artificial intelligence-based antenna azimuth angle measurement method, device and system |
| CN117746261A (en) * | 2022-09-13 | 2024-03-22 | 中兴通讯股份有限公司 | Base station antenna pose information exploration method, device and system and storage medium |
| CN117008174B (en) * | 2023-10-07 | 2024-03-01 | 中国西安卫星测控中心 | GNSS-based measurement and control antenna non-orthogonality measurement method and device |
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