Power transmission line safety early warning system

Abstract

The invention discloses a power transmission line safety early warning system, which relates to the technical field of power transmission line early warning and comprises two radars, a mounting frame is arranged below the two radars, cameras are fixedly mounted on two sides of the mounting frame, each camera comprises a shell arranged on the mounting frame, and a main body is fixedly mounted in the shell. An adjusting cylinder is rotatably installed on the surface of the main body, an inclined long opening is formed in the surface of the adjusting cylinder, and a second stepping motor is fixedly installed on one side of the surface of the main body. When the real size of an object in the video is adjusted and judged and a dangerous target is found to approach the power transmission line, early warning is given out in time, so that a user can make a response in time and make corresponding processing in time, the use safety of the power transmission line is ensured, and convenience is provided for work and use of the user.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission line warning, in particular to a transmission line safety warning system. Background Art

[0002] During the actual operation of transmission lines, potential safety hazards are likely to occur. Once a problem occurs in the transmission line, the impact is significant. It will not only affect the normal work of users, but may even cause fires, threatening the personal safety of users and causing great property losses. Traditional warning work is achieved through cameras, that is, someone needs to often observe whether there are objects approaching and then take pictures with a camera. However, this method has poor timeliness. There are not only information transmission errors, and users have no time to make timely handling work, but also someone needs to often guard and observe whether someone is approaching, resulting in high labor costs, high work intensity, and low efficiency.

[0003] In view of the above problems, the present invention is improved. Summary of the Invention

[0004] The present invention provides a transmission line safety warning system, which solves the above problems existing in the prior art during use.

[0005] The technical solution of the present invention is realized as follows: A transmission line safety warning system includes two radars. An installation frame is arranged below the two radars. Cameras are fixedly installed on both sides of the installation frame. The camera includes a housing arranged on the installation frame. A main body is fixedly installed inside the housing. An adjustment cylinder is rotatably installed on the surface of the main body. An inclined long opening is formed on the surface of the adjustment cylinder. A stepping motor two is fixedly installed on one side of the surface of the main body. A gear one is fixedly installed on the output shaft of the stepping motor two. A toothed ring one meshing with the gear one is fixedly installed on one side of the surface of the adjustment cylinder. A limit opening is formed on the surface of the main body. A lens is slidably installed inside the main body. A sliding pin adapted to the limit opening is fixedly connected to the surface of the lens. The sliding pin is adapted to the inclined long opening.

[0006] For the transmission line safety warning system as described above in the present invention, further: A toothed ring two is fixedly installed on one side of the surface of the main body. A stepping motor three is fixedly installed on one side of the surface of the main body. A gear two meshing with the toothed ring two is fixedly installed at the output end of the stepping motor three.

[0007] For the transmission line safety warning system as described above in the present invention, further: A stepping motor four is fixedly installed on one side of the surface of the main body. A toothed ring three is fixedly installed on one side of the surface of the main body. A gear three meshing with the toothed ring three is fixedly installed on the output shaft of the stepping motor four.

[0008] For the power transmission line safety warning system as described above, further: On one side of the surface of the main body, a fourth gear ring is fixedly installed, and on one side of the surface of the main body, a bracket is fixedly installed. On one side of the bracket, a first stepping motor is fixedly installed. The output shaft of the first stepping motor penetrates to the outside of the bracket and is fixedly installed with a fourth gear. A fifth gear meshing with the fourth gear is rotatably installed on one side of the bracket, and the fifth gear meshes with the fourth gear ring. For the power transmission line safety warning system as described above, further: A fixing frame is fixedly installed on the surface of the outer shell, and the camera is fixedly installed on the mounting frame through the fixing frame.

[0009] For the power transmission line safety warning system as described above, further: A control terminal is fixedly installed between the two radars. The bottom of the control terminal is fixedly installed with a pan-tilt head, and the pan-tilt head is fixedly installed on the mounting frame.

[0010] For the power transmission line safety warning system as described above, further: The bottom of the pan-tilt head is detachably installed with a mounting frame. The bottom of the mounting frame is fixedly installed with a column, and the bottom end of the column is fixedly installed with a base, and the base is detachably installed on the ground.

[0011] For the power transmission line safety warning system as described above, further: A fixing sleeve is fixedly installed on the surface of the column. A plurality of support rods are movably installed on the surface of the fixing sleeve. A plurality of legs are movably installed on the surface of the base, and one end of the support rod away from the fixing sleeve is movably installed on the leg.

[0012] For the power transmission line safety warning system as described above, further: The support rod includes a connecting block. Adjusting lead screws are respectively arranged through both sides of the connecting block. One ends of the two adjusting lead screws away from the connecting block are respectively movably installed on the leg and the fixing sleeve.

[0013] A method for using a power transmission line safety warning system

[0014] The system consists of a radar, a pan-tilt head, a camera and a controller;

[0015] Measurement: When the zoom value of the camera is [specific value], the pixel size (width, height) of an object with a length and width of one meter each in the center of the video screen;

[0016] The zoom of the camera video screen is achieved by moving the lens by changing the stepping position of the motor. Each stepping position has a corresponding zoom value;

[0017] Steps for calculating the size of an object in the video:

[0018] 0101. Start;

[0019] 0102. Use AI to identify the object in the video screen to obtain the width pixels and height pixels of the object;

[0020] 0103. Read the current motor step value of the camera;

[0021] 0104. Find the corresponding zoom value from the configuration table according to the step value;

[0022] 0105. Object width = Object width pixels / Measured width pixels x Zoom value;

[0023] 0106. Object height = Object height pixels / Measured height pixels x Zoom value;

[0024] 0107. End;

[0025] Alarm process:

[0026] 0201. Start;

[0027] 0202. The radar detects a target and reports it to the controller;

[0028] 0203. Has the target crossed the warning line? If N, end; if Y, continue;

[0029] 0204. The pan-tilt rotates to the target direction, adjusts the zoom value according to the distance, and starts recording;

[0030] 0205. Invoke AI to process the video and identify the object type and the pixel size of the width and height;

[0031] 0206. Calculate the actual size of the object according to the camera zoom value;

[0032] 0207. Is the height greater than the warning value? If N, end; if Y, continue;

[0033] 0208. Send a safety warning message;

[0034] 0209. End;

[0035] The working process of the camera is as follows. During operation, according to the actual working environment changes, the control terminal will control the start of the operation of the second stepping motor. The second stepping motor will drive the first gear to rotate. The first gear drives the first gear ring to rotate. The first gear ring drives the adjusting cylinder to rotate on the surface of the main body. Under the action of the corresponding inclined long opening, the adjusting cylinder will push the sliding pin to move, and the sliding pin slides within the limit opening, thereby realizing the limit and guidance of the sliding pin, enabling the sliding pin to achieve lateral movement. Therefore, the sliding pin can drive the lens to move within the main body, adjust the distance between the lenses, and realize the zoom of the camera video image. It can also be achieved by using a corresponding mechanical structure to move the lens by changing the motor step position.

[0036] Measurement: When the camera zoom value is [specific value], the pixel size (width, height) of an object with a length and width of one meter each in the center of the video image;

[0037] The zooming of the camera video image is achieved by moving the lens by changing the motor's step position. Each step position has a corresponding zoom value;

[0038] It should be noted that the rotation direction of the stepper motor can be controlled by changing the input pulse sequence. Specifically, the stepper motor has two phases, A and B. By swapping the order of A+, A- and B+, B-, the rotation direction of the stepper motor can be changed;

[0039] The rotation of the stepper motor is achieved by receiving electrical pulse signals. Each pulse signal causes the motor rotor to rotate by a fixed angle, which is called the step angle. The rotation direction of the stepper motor is controlled by changing the direction of the current;

[0040] Control pulse signals: To change the position of the stepper motor, it is first necessary to send corresponding electrical pulse signals to the motor through a controller. The frequency and number of these pulse signals determine the rotation speed and angle of the motor; Changing the current direction: For some types of stepper motors, such as two-phase hybrid stepper motors, the rotation direction of the motor can be changed by swapping the input terminals of phase A and phase B. For example, if the original setting is that A+ is connected to the positive power supply, A- is connected to the negative power supply, B+ is connected to the control signal, and B- is connected to the ground, then swapping A+ and B+, and at the same time swapping A- and B-, will cause the motor to reverse.

[0041] Using a driver: In practical applications, a special stepper motor driver is usually used to control the motor. There is usually a direction control signal (such as the DIR signal) on the driver. By changing the state of this signal, the rotation direction of the motor can be changed;

[0042] Considering the mechanical structure and load: When changing the position of the stepper motor, the influence of the mechanical structure and load also needs to be considered. For example, if the motor drives a load with a large inertia, different acceleration and deceleration strategies may be required during startup and stop to prevent the motor from losing steps or being damaged.

[0043] In summary, the beneficial effects of the present invention are as follows:

[0044] 1. The present invention adopts a structural design of moving the lens by changing the motor's step position, and according to the actual working environment, monitors the changes in the working environment with a radar, adjusts and judges the true size of the objects in the video, and issues a warning in time when a dangerous target approaches the power transmission line, so that the user can make a timely response and take timely corresponding measures to ensure the safety of the use of the power transmission line and provide convenience for the user's work use.

[0045] 2. Through the arrangement of the second gear ring and the third stepper motor, during operation, the third stepper motor drives the second gear to rotate, the second gear drives the second gear ring to rotate, and at the same time drives the lens at the end of the main body to rotate, thereby realizing the adjustment of the camera aperture, improving the clarity of image collection of the warning system, and providing convenience for the user's work.

[0046] 3. Through the arrangement of the fourth stepper motor, the third gear ring, the fourth gear ring and the first stepper motor, the fourth gear installed on the first stepper motor meshes with the fifth gear, and the fifth gear meshes with the fourth gear ring. In this way, under the drive of the first stepper motor, the adjustment of the camera focal length can be further realized, improving the accuracy of image collection, and providing convenience for the user's work.

[0047] 4. Through the arrangement of the fixing frame, the fixing frame is fixed on the outer shell and is used to install the camera on the mounting frame to achieve stable matching with the radar, ensure the accuracy of the warning system work, and provide convenience for the user's work.

[0048] 5. Through the arrangement of the control terminal and the pan-tilt head, the control terminal is used to control the operation of the motor inside the camera. Specifically, it sends corresponding electrical pulse signals to each motor. The frequency and quantity of these pulse signals determine the rotation speed and angle of each motor, that is, determine the stepping position of the stepper motor. Each stepping position has a corresponding zoom value, thereby realizing the zoom of the camera video image.

[0049] 6. Through the arrangement of the mounting frame, the column and the base, both the mounting frame and the column are used to increase the installation height of the warning system. In this way, the warning system can monitor a wider range, improve the working efficiency of the warning system, protect the safety of the transmission line during use, and provide convenience for the user's work. The base is fixed to the ground by bolts to ensure that the warning system will not move randomly during operation and improve the stability of the warning system work.

[0050] 7. Through the arrangement of the fixing sleeve, the support leg and the support rod, the support rod can be rotated and adjusted. Therefore, the support rod can adjust its own length according to the actual use requirements. In this way, the support leg can be unfolded to support on the ground, thereby improving the stability of the warning system work. At the same time, the support leg can also be conveniently retracted, providing convenience for the user's later disassembly work.

[0051] 8. Through the arrangement of the support rod, the adjusting screw rod can also be disassembled from the connecting block. Specifically, the two adjusting screw rods are rotated in opposite directions. In this way, the adjusting screw rod can move towards the side close to the connecting block until the adjusting screw rod is removed from the connecting block. Description of the Drawings

[0052] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0053] Figure 1 Schematic diagram of the overall structure of the present invention;

[0054] Figure 2 Schematic diagram of the three-dimensional structure of the mounting frame;

[0055] Figure 3 Schematic diagram of the partial three-dimensional structure cross-section of the present invention;

[0056] Figure 4 Schematic diagram of the partial three-dimensional structure of the camera;

[0057] Figure 5 Schematic diagram of the partial three-dimensional structure decomposition of the camera;

[0058] Figure 6 Schematic diagram of the three-dimensional structure assembly of the support rod;

[0059] Figure 7 Schematic diagram of the three-dimensional structure of the support rod;

[0060] Figure 8 Long focal length light distribution diagram of the camera;

[0061] Figure 9 Standard focal length light distribution diagram of the camera;

[0062] Figure 10 Short focal length light distribution diagram of the camera;

[0063] Figure 11 Schematic diagram of the cooperation between the system and the camera of the present invention;

[0064] Figure 12 Schematic diagram of the system operation of the present invention.

[0065] In the figure: 1, pan-tilt; 2, control terminal; 3, radar; 4, camera; 5, fixing frame; 6, mounting frame; 7, column; 8, fixing sleeve; 9, base; 10, leg; 11, support rod; 111, connecting block; 112, adjusting screw rod; 41, main body; 42, stepper motor 1; 43, adjusting cylinder; 44, inclined long opening; 45, stepper motor 2; 46, limiting opening; 47, lens; 48, sliding pin; 49, gear ring 1; 410, gear ring 2; 411, stepper motor 3; 412, stepper motor 4; 413, gear ring 3; 414, gear ring 4. Detailed implementation mode

[0066] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the attached Figures 1-12 . Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0067] Embodiment

[0068] A power transmission line safety warning system includes two radars 3. An installation frame 6 is arranged below the two radars 3. Cameras 4 are fixedly installed on both sides of the installation frame 6. The camera 4 includes a housing arranged on the installation frame 6. A main body 41 is fixedly installed inside the housing. An adjustment cylinder 43 is rotatably installed on the surface of the main body 41. An inclined long opening 44 is formed on the surface of the adjustment cylinder 43. A stepping motor two 45 is fixedly installed on one side of the surface of the main body 41. A gear one is fixedly installed on the output shaft of the stepping motor two 45. A gear ring one 49 meshing with the gear one is fixedly installed on one side of the surface of the adjustment cylinder 43. A limit opening 46 is formed on the surface of the main body 41. A lens 47 is slidably installed inside the main body 41. A sliding pin 48 adapted to the limit opening 46 is fixedly connected to the surface of the lens 47. The sliding pin 48 is adapted to the inclined long opening 44.

[0069] The working process of camera 4 is as follows: During operation, according to the actual changes in the working environment, the control terminal 2 will control the start of the second stepping motor 45 via the control of the control terminal 2. The second stepping motor 45 will drive the first gear to rotate, the first gear will drive the first gear ring 49 to rotate, and the first gear ring 49 will drive the adjusting cylinder 43 to rotate on the surface of the main body 41. Under the action of the corresponding inclined long opening 44, the adjusting cylinder 43 will push the sliding pin 48 to move, and the sliding pin 48 slides within the limit opening 46, thereby realizing the limitation and guidance of the sliding pin 48, enabling the sliding pin 48 to achieve lateral movement. Therefore, the sliding pin 48 can drive the lens 47 to move within the main body 41 to adjust the distance between the lenses, realizing the zooming of the camera video image. It can also be achieved by using a corresponding mechanical structure to move the lens by changing the stepping position of the motor. It should be noted that during actual use, starting the third stepping motor 411 can also drive the second gear ring 410 to rotate, and the second gear ring 410 will drive the lens installed at the end of the main body 41 to rotate. Moreover, the aperture installed at the corresponding position on the camera 4 will also be adjusted along with the lens to achieve the purpose of adjusting the aperture. This is prior art and will not be elaborated much in this text. For details, you can refer to the aperture adjustment method on a single-lens reflex camera. The fourth stepping motor 412 starts and cooperates with the corresponding gears to drive the third gear ring 413 to rotate, and the third gear ring 413 drives the end structure of the main body 41 to rotate, thereby adjusting the corresponding work. In addition, the first stepping motor 42 and the corresponding gears cooperating with the fourth gear ring 414 can also achieve the adjustment of corresponding functions. For details, you can refer to cameras with automatic adjustment functions. This is prior art and will not be elaborated much in this text.

[0070] Therefore, the present invention adopts a structural design of moving the lens by changing the stepping position of the motor, and monitors the changes in the working environment with a radar according to the actual working environment, adjusts and judges the true size of the object in the video. When a dangerous target approaches the power transmission line, a warning is issued in a timely manner so that the user can make a timely response and take corresponding timely measures to ensure the safety of the use of the power transmission line and provide convenience for the user's work use. On one side of the surface of the main body 41, the second gear ring 410 is fixedly installed, and on one side of the surface of the main body 41, the third stepping motor 411 is fixedly installed. The output end of the third stepping motor 411 is fixedly installed with a second gear that meshes with the second gear ring 410.

[0071] Specifically, with the setting of the second gear ring 410 and the third stepping motor 411, during operation, the third stepping motor 411 drives the second gear to rotate, the second gear drives the second gear ring 410 to rotate, and at the same time drives the lens at the end of the main body 41 to rotate. This is prior art. For details, you can refer to the structure of a single-lens reflex camera, thereby realizing the adjustment of the aperture of the camera 4, improving the clarity of the image collection of the warning system, and providing convenience for the user's work use.

[0072] On one side of the surface of the main body 41, a fourth stepping motor 412 is fixedly installed. On one side of the surface of the main body 41, a third gear ring 413 is fixedly installed. The output shaft of the fourth stepping motor 412 is fixedly installed with a third gear that meshes with the third gear ring 413. On one side of the surface of the main body 41, a fourth gear ring 414 is fixedly installed. On one side of the surface of the main body 41, a bracket is fixedly installed. On one side of the bracket, a first stepping motor 42 is fixedly installed. The output shaft of the first stepping motor 42 penetrates to the outside of the bracket and is fixedly installed with a fourth gear. A fifth gear that meshes with the fourth gear is rotatably installed on one side of the bracket. The fifth gear meshes with the fourth gear ring 414.

[0073] Specifically, due to the settings of the fourth stepping motor 412, the third gear ring 413, the fourth gear ring 414, and the first stepping motor 42, the fourth gear installed on the first stepping motor 42 meshes with the fifth gear, and the fifth gear meshes with the fourth gear ring 414. In this way, under the drive of the first stepping motor 42, the adjustment of the focal length of the camera 4 can be further realized, improving the accuracy of image collection and providing convenience for the user's work.

[0074] A fixing frame 5 is fixedly installed on the surface of the housing. The camera 4 is fixedly installed on the mounting frame 6 through the fixing frame 5.

[0075] Specifically, due to the setting of the fixing frame 5, the fixing frame 5 is fixed on the housing and is used to install the camera 4 on the mounting frame 6, realizing a stable matching with the radar, ensuring the accuracy of the early warning system's operation, and providing convenience for the user's work.

[0076] A control terminal 2 is fixedly installed between the two radars 3. The bottom of the control terminal 2 is fixedly installed with a cloud platform 1. The cloud platform 1 is fixedly installed on the mounting frame (6).

[0077] Specifically, due to the settings of the control terminal 2 and the cloud platform 1, the control terminal 2 is used to control the operation of the motor inside the camera 4. Specifically, it sends corresponding electrical pulse signals to each motor. The frequency and quantity of these pulse signals determine the rotation speed and angle of each motor, that is, determine the stepping position of the stepping motor. Each stepping position has a corresponding zoom value, thereby realizing the zoom of the camera video image.

[0078] The bottom of the cloud platform 1 is detachably installed with a mounting frame 6. The bottom of the mounting frame 6 is fixedly installed with a column 7. The bottom end of the column 7 is fixedly installed with a base 9. The base 9 is detachably installed on the ground.

[0079] Specifically, the installation frame 6, the column 7, and the base 9 are provided. The installation frame 6 and the column 7 are both used to increase the installation height of the warning system. In this way, the warning system can monitor a wider range, improve the working efficiency of the warning system, protect the safety of the power transmission line during use, and provide convenience for the user's work. The base 9 is bolted to the ground to ensure that the warning system does not move randomly during operation and improve the stability of the warning system during operation.

[0080] A fixing sleeve 8 is fixedly installed on the surface of the column 7. A plurality of support rods 11 are movably installed on the surface of the fixing sleeve 8. A plurality of legs 10 are movably installed on the surface of the base 9. One end of the support rod 11 away from the fixing sleeve 8 is movably installed on the leg 10.

[0081] Specifically, the fixing sleeve 8, the legs 10, and the support rods 11 are provided. The support rods 11 can be rotated and adjusted. Therefore, the support rods 11 can adjust their own lengths according to actual usage requirements. In this way, the legs 10 can be unfolded to support on the ground, thereby improving the stability of the warning system during operation. At the same time, the legs 10 can also be conveniently retracted, providing convenience for the user's later disassembly work.

[0082] The support rod 11 includes a connection block 111. Adjusting screw rods 112 are respectively penetrated through both sides of the connection block 111. One ends of the two adjusting screw rods 112 away from the connection block 111 are respectively movably installed on the leg 10 and the fixing sleeve 8.

[0083] Specifically, for the setting of the support rod 11, the adjusting screw rods 112 can also be disassembled from the connection block 111. Specifically as follows: Rotate the two adjusting screw rods 112 in opposite directions. In this way, the adjusting screw rods 112 can move towards the side close to the connection block 111 until the adjusting screw rods 112 are removed from the connection block 111. A method for using a power transmission line safety warning system:

[0084] The system consists of a radar 3, a pan-tilt 1, a camera 4, and a control terminal 2;

[0085] Measurement: When the camera zoom value is 1, the pixel size width and height of an object with a length and width of one meter each in the center of the video screen;

[0086] The zooming of the camera video screen is achieved by changing the stepping position of the motor to move the lens. Each stepping position has a corresponding zoom value;

[0087] Steps for calculating the size of an object in the video:

[0088] 0101. Start;

[0089] 0102. Use AI to identify the object in the video screen to obtain the width pixels and height pixels of the object;

[0090] 0103. Read the current motor step value of the camera;

[0091] 0104. Find the corresponding zoom value from the configuration table according to the step value;

[0092] 0105. Object width = Object width pixels / Measured width pixels x Zoom value;

[0093] 0106. Object height = Object height pixels / Measured height pixels x Zoom value;

[0094] 0107. End;

[0095] Alarm process:

[0096] 0201. Start;

[0097] 0202. The radar detects a target and reports it to the controller;

[0098] 0203. Has the target crossed the warning line? If N, end; if Y, continue;

[0099] 0204. The pan-tilt rotates to the target direction, adjusts the zoom value according to the distance, and starts recording;

[0100] 0205. Invoke AI to process the video and identify the object type and pixel width and height;

[0101] 0206. Calculate the actual size of the object according to the camera zoom value;

[0102] 0207. Is the height exceeding the warning value? If N, end; if Y, continue;

[0103] 0208. Send a safety warning message;

[0104] 0209. End;

[0105] The working process of camera 4 is as follows. During operation, according to the actual working environment changes, the control terminal 2 will control the second stepping motor 45 to start working via the control of the control terminal 2. The second stepping motor 45 will drive the first gear to rotate, the first gear will drive the first gear ring 49 to rotate, and the first gear ring 49 will drive the adjusting cylinder 43 to rotate on the surface of the main body 41. Under the action of the corresponding inclined long opening 44, the adjusting cylinder 43 will push the sliding pin 48 to move, and the sliding pin 48 slides within the limit opening 46, thereby realizing the limitation and guidance of the sliding pin 48, enabling the sliding pin 48 to achieve lateral movement. Therefore, the sliding pin 48 can drive the lens 47 to move within the main body 41, adjust the distance between the lenses, and realize the zooming of the camera video image. It can also be achieved by using a corresponding mechanical structure to move the lens by changing the stepping position of the motor. It should be noted that during actual use, starting the third stepping motor 411 can also drive the second gear ring 410 to rotate, and the second gear ring 410 will drive the lens installed at the end of the main body 41 to rotate, and the aperture installed at the corresponding position on the camera 4 will also be adjusted along with the lens to achieve the purpose of adjusting the aperture. This is prior art and will not be elaborated much in this text. For details, reference can be made to the aperture adjustment method on a single-lens reflex camera. The fourth stepping motor 412 starts and drives the third gear ring 413 to rotate through the cooperation of corresponding gears, and the third gear ring 413 drives the end structure of the main body 41 to rotate, thereby adjusting the corresponding work. In addition, the first stepping motor 42 and the corresponding gears cooperate with the fourth gear ring 414 to also achieve the adjustment of corresponding functions. For details, reference can be made to cameras with automatic adjustment functions. This is prior art and will not be elaborated much in this text;

[0106] Measurement: When the camera zoom value is 1, the pixel size (width, height) of an object with a length and width of one meter each in the center of the video image;

[0107] The zooming of the camera video image is achieved by moving the lens by changing the stepping position of the motor. Each stepping position has a corresponding zoom value;

[0108] It should be noted that the rotation direction of the stepping motor can be controlled by changing the input pulse sequence. Specifically, the stepping motor has two phases, A and B. By swapping the order of A+, A- and B+, B-, the rotation direction of the stepping motor can be changed;

[0109] The rotation of the stepping motor is achieved by receiving electrical pulse signals. Each pulse signal will cause the motor rotor to rotate by a fixed angle, which is called the step angle. The rotation direction of the stepping motor is controlled by changing the direction of the current;

[0110] Control Pulse Signal: To change the position of a stepper motor, it is first necessary to send corresponding electrical pulse signals to the motor through a controller. The frequency and quantity of these pulse signals determine the rotational speed and angle of the motor; Changing the Current Direction: For certain types of stepper motors, such as two-phase hybrid stepper motors, the direction of the motor can be changed by swapping the input terminals of phase A and phase B. For example, if the original setting is that A+ is connected to the positive power supply, A- is connected to the negative power supply, B+ is connected to the control signal, and B- is connected to ground, then swapping A+ and B+, and simultaneously swapping A- and B-, will reverse the rotation of the motor.

[0111] Using a Driver: In practical applications, a dedicated stepper motor driver is usually used to control the motor. There are usually direction control signals on the driver, such as the DIR signal. By changing the state of this signal, the direction of the motor can be changed;

[0112] Considering the Mechanical Structure and Load: When changing the position of a stepper motor, the influence of the mechanical structure and load also needs to be considered. For example, if the motor drives a load with a large inertia, different acceleration and deceleration strategies may need to be adopted during startup and stop to prevent the motor from losing steps or being damaged.

[0113] It should be noted that the models of the control terminal 2, radar 3, and camera 4 in this solution are all commercially available models that can meet the actual usage requirements. For example, when selecting a radar, it can be a small one that can be installed together with the camera 4, or an independently installed one.

[0114] It should be noted that there are a large number of mature technologies to support the functions to be achieved by each hardware in the present invention, which belong to the prior art. The essence of the present invention lies in optimizing and combining the existing hardware and its connection methods for a specific application scenario to meet the adaptation requirements in the specific application scenario and solve the problems raised in the background technology (without involving the improvement of the software inside the hardware).

[0115] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power transmission line safety early warning system, comprising two radars (3), characterized in that: A mounting frame (6) is arranged below the two radars (3), and cameras (4) are fixedly installed on both sides of the mounting frame (6). The camera (4) comprises a shell arranged on the mounting frame (6), and a main body (41) is fixedly installed inside the shell. An adjusting cylinder (43) is rotatably installed on the surface of the main body (41), and an oblique long opening (44) is provided on the surface of the adjusting cylinder (43). A stepping motor 2 (45) is fixedly installed on one side of the surface of the main body (41), and a gear 1 is fixedly installed on the output shaft of the stepping motor 2 (45). A gear ring 1 (49) meshing with the gear 1 is fixedly installed on one side of the surface of the adjusting cylinder (43). A limit opening (46) is provided on the surface of the main body (41), and a lens (47) is slidably installed inside the main body (41). A sliding pin (48) matched with the limit opening (46) is fixedly connected to the surface of the lens (47), and the sliding pin (48) is matched with the oblique long opening (44).

2. A power transmission line safety warning system according to claim 1, characterized in that: A second gear ring (410) is fixedly mounted on one side of the surface of the main body (41), a third stepper motor (411) is fixedly mounted on one side of the surface of the main body (41), and a second gear meshing with the second gear ring (410) is fixedly mounted on the output end of the third stepper motor (411).

3. A power transmission line safety warning system according to claim 2, characterized in that: A stepper motor four (412) is fixedly mounted on one side of the surface of the main body (41), a gear ring three (413) is fixedly mounted on one side of the surface of the main body (41), and a gear three meshing with the gear ring three (413) is fixedly mounted on the output shaft of the stepper motor four (412).

4. A power transmission line safety warning system according to claim 3, characterized in that: A gear ring four (414) is fixedly mounted on one side of the surface of the main body (41), a bracket is fixedly mounted on one side of the surface of the main body (41), a stepper motor one (42) is fixedly mounted on one side of the bracket, an output shaft of the stepper motor one (42) passes through the outside of the bracket and is fixedly mounted with a gear four, a gear five meshing with the gear four is rotatably mounted on one side of the bracket, and the gear five meshes with the gear ring four (414).

5. A power transmission line safety warning system according to claim 4, characterized in that: A fixing frame (5) is fixedly mounted on the surface of the housing, and the camera (4) is fixedly mounted on the mounting frame (6) via the fixing frame (5).

6. A power transmission line safety warning system according to claim 5, characterized in that: A control terminal (2) is fixedly installed between the two radars (3), a pan / tilt platform (1) is fixedly installed at the bottom of the control terminal (2), and the pan / tilt platform (1) is fixedly installed on a mounting frame (6).

7. A power transmission line safety warning system according to claim 6, characterized in that: A column (7) is fixedly mounted on the bottom of the mounting frame (6), a base (9) is fixedly mounted on the bottom end of the column (7), and the base (9) is detachably mounted on the ground.

8. A power transmission line safety warning system according to claim 7, characterized in that: A fixing sleeve (8) is fixedly mounted on the surface of the column (7), a plurality of support rods (11) are movably mounted on the surface of the fixing sleeve (8), a plurality of supporting legs (10) are movably mounted on the surface of the base (9), and one end of the supporting rod (11) away from the fixing sleeve (8) is movably mounted on the supporting leg (10).

9. A power transmission line safety warning system according to claim 8, characterized in that: The support rod (11) comprises a connecting block (111), and adjusting screw rods (112) are provided through both sides of the connecting block (111), and the ends of the two adjusting screw rods (112) away from the connecting block (111) are movably mounted on the supporting leg (10) and the fixing sleeve (8) respectively.

10. A method for using a transmission line safety early warning system, characterized in that: The system consists of radar, gimbal, camera and controller; Measurement: When the camera zoom value is 1, the pixel size (width, height) of an object with a length and width of 1 meter in the center of the video screen; The zoom of the camera video screen is achieved by changing the motor step position to move the lens. Each step position has a corresponding zoom value; Steps to calculate the size of objects in a video: 0101, start; 0102. Use AI to identify the object in the video and get the width and height pixels of the object; 0103. Read the current motor step value of the camera; 0104. Find the corresponding scaling value from the configuration table based on the step value; 0105, object width = object width pixels / measured width pixels x scaling value; 0106. Object height = object height pixels / measured height pixels x scaling value; 0107, End; Alarm process: 0201, start; 0202. The radar detects the target and reports it to the controller; 0203. The target has crossed the cordon? End if N, continue if Y; 0204. The PTZ rotates to the target direction, adjusts the zoom value according to the distance, and records the video; 0205. Call AI to process the video and identify the type of object and its width and height pixels; 0206. Calculate the actual size of the object based on the camera zoom value; 0207. The altitude exceeds the warning value? If it is N, end. If it is Y, continue. 0208. Issue safety warning information; 0209, End; The working process of the camera (4) is as follows. During operation, according to the actual working environment changes, the control terminal (2) controls the stepper motor 2 (45) to start working, and the stepper motor 2 (45) drives the gear 1 to rotate, and the gear 1 drives the gear ring 1 (49) to rotate, and the gear ring 1 (49) drives the adjustment tube (43) to rotate on the surface of the main body (41). Under the action of the corresponding oblique long opening (44), the adjustment tube (43) pushes the sliding pin (48) to move, and the sliding pin (48) slides in the limiting opening (46), thereby realizing the limiting and guiding of the sliding pin (48), so that the sliding pin (48) can realize the horizontal movement, so the sliding pin (48) can drive the lens (47) to move in the main body (41), and adjust the distance between the lenses to realize the zooming of the camera video screen. It can also be realized by using a corresponding mechanical structure to change the motor stepping position to move the lens. Measurement: When the camera zoom value is 1, the pixel size (width, height) of an object with a length and width of 1 meter in the center of the video screen; The zoom of the camera video screen is achieved by changing the motor step position to move the lens. Each step position has a corresponding zoom value; It should be noted that the rotation of the stepper motor is achieved by receiving electrical pulse signals. Each pulse signal will cause the motor rotor to rotate a fixed angle, which is called the step angle. The direction of the stepper motor is controlled by changing the direction of the current. Control pulse signal: To change the position of the stepper motor, you first need to send the corresponding electrical pulse signal to the motor through the controller. The frequency and number of these pulse signals determine the rotation speed and angle of the motor. Change the direction of current: For some types of stepper motors, such as two-phase hybrid stepper motors, the direction of the motor can be changed by swapping the input terminals of phase A and phase B. For example, if the original setting is that A+ is connected to the positive power supply, A- is connected to the negative power supply, B+ is connected to the control signal, and B- is connected to the ground, then swapping A+ and B+, and swapping A- and B- at the same time, will reverse the motor; Use driver: In practical applications, a dedicated stepper motor driver is usually used to control the motor. The driver usually has a direction control signal (such as DIR signal). By changing the state of this signal, the direction of the motor can be changed; Consider the mechanical structure and load: When changing the position of the stepper motor, the impact of the mechanical structure and load also needs to be considered. For example, if the motor is driving a load with large inertia, different acceleration and deceleration strategies may be required when starting and stopping to prevent the motor from losing steps or being damaged.

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