A high-altitude parabolic monitoring method

A high-altitude parabola and building technology, applied in measurement devices, surveying and navigation, photogrammetry/video surveying, etc., to avoid monitoring blind spots and improve efficiency

Active Publication Date: 2020-10-09
HUNAN LIANZHI BRIDGE & TUNNEL TECH
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Problems solved by technology

[0008] The purpose of the present invention is to provide a high-altitude parabolic monitoring method to solve the problem of quickly locating the parabolic position

Method used

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  • A high-altitude parabolic monitoring method
  • A high-altitude parabolic monitoring method
  • A high-altitude parabolic monitoring method

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Embodiment 1

[0052] see Figure 1 to Figure 6 , a high-altitude parabolic monitoring method, the present embodiment is applied to high-altitude parabolic monitoring and confirmation of parabolic points.

[0053] A kind of high-altitude parabolic monitoring method adopts such as figure 1 The high-altitude parabolic monitoring system shown is for parabolic monitoring. The high-altitude parabolic monitoring system is set up with reference to the existing technology, including camera 1, core switch 2, control center 3 and network cable 4. The control center 3 has built-in settings for high-altitude parabolic monitoring. Program, all the cameras 1 of a building are connected to the core switch 2 through the network cable 4, and the control center 3 is also connected to the core switch 2 through the network cable 4, and all the devices together form a high-speed local area network. In this embodiment, the camera adopts a wide-angle high-definition camera Performing high-altitude parabolic monit...

Embodiment 2

[0081] see Figure 7 to Figure 10 , a high-altitude parabolic monitoring method, the present embodiment is applied to high-altitude parabolic monitoring and confirmation of parabolic points.

[0082] The difference between this embodiment and Embodiment 1 is that two cameras are set up on the top of the building, which are camera S 1 and camera S 2 , when the number of cameras is two or more, the cameras are combined in pairs for real-time video monitoring, and the angle α formed by the centerline of the angle of view of the nth camera and the plumb line n ≠0°; if Figure 7 As shown, the lower left corner of the building is taken as the origin of the coordinate system, the positive direction of the x-coordinate axis is horizontal to the right, and the positive direction of the coordinate axis y is vertical upward, and a unit length on the coordinate axis corresponds to a distance value of 1 meter, where , camera S 1 The coordinates (x 1 ,y 1 ) is (8,38), camera S 2 The ...

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Abstract

The invention provides a high-altitude parabolic monitoring method. Including setting up a camera on the top of the building according to the size of the building, monitoring the parabolic situation on the side of the building, and sending the video file to the control center; the control center judges whether there is a parabolic situation by comparing adjacent picture frames, and then finds the first The time stamp of the picture frame where the parabolic target appears once and find the images taken by all cameras at this moment for binarization processing to obtain the binarized image corresponding to each camera; establish the corresponding room number along the monitoring surface of the building Cartesian coordinate system, determine the coordinates corresponding to each camera and the geometric relationship between the parabolic point and the camera, combine the binarized image to calculate the parabolic coordinates corresponding to the parabolic points, and then obtain the room number corresponding to the parabolic coordinates. The invention establishes a rectangular coordinate system along the monitoring side of the building, and can quickly locate the room number of the parabola according to the calculated parabolic coordinates, which is convenient for high-altitude parabolic tracking, education and accountability.

Description

technical field [0001] The invention relates to the technical field of image monitoring and processing, in particular to a high-altitude parabolic monitoring method. Background technique [0002] High-altitude parabolic phenomenon is called "pain hanging over the city", which is an extremely uncivilized behavior, which can easily bring social harm and cause major social impact; in response to high-altitude parabolic phenomenon, various regions have issued regulations prohibiting high-altitude parabolic phenomena Laws and regulations are in place to ensure the safety of people's lives and property, but there are still problems such as difficulty in monitoring and obtaining evidence. [0003] In order to protect the privacy of residents, the existing automatic monitoring method for high-altitude parabolic objects is mainly to set a looking-up monitoring camera on the ground downstairs of the building for 24-hour video storage and monitoring. This method has the following prob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06F16/783H04N5/76H04N7/18G01C11/02
CPCG06F16/783H04N7/181H04N5/76G01C11/025G06V20/52
Inventor 周俊华雷孟飞赵莉
Owner HUNAN LIANZHI BRIDGE & TUNNEL TECH
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