Power grid tower monitoring device

Abstract

The invention relates to a power grid tower monitoring device, which relates to the technical field of environment monitoring and comprises a base, a bearing cover, a controller, a reference air pressure sensor and a plurality of environment air pressure sensors. The base is used for being installed on a tower body, the bearing cover is connected with the base, a plurality of ventilation channels are formed in the bearing cover, each ventilation channel is arranged to be a conical channel, and the diameter of each ventilation channel is gradually reduced in the direction from the outer side to the inner side; the controller is installed on the bearing cover, the reference air pressure sensor is installed on the bearing cover and located in an area defined by the multiple environment air pressure sensors, and the multiple environment air pressure sensors are installed in the multiple ventilation channels and located on the inner sides of the corresponding ventilation channels; and the controller is simultaneously in communication connection with the reference air pressure sensor and the four air pressure sensors. The accuracy of the wind speed and wind direction monitoring result can be improved, the toppling risk of the tower can be evaluated and predicted by combining the wind speed and wind direction and the tower inclination angle, and corresponding measures can be taken in advance.

Description

Technical Field

[0001] This invention relates to the field of environmental monitoring technology, and more specifically, to a power grid tower monitoring device. Background Technology

[0002] Currently, the main power pole monitoring systems on the market are based on BeiDou satellite navigation for power pole tilt monitoring. These systems include: pole height acquisition devices, which monitor and collect power pole tilt angle data and typically consist of sensors and data processing modules; pole tilt angle acquisition devices, which monitor and collect power pole tilt angle data and typically consist of multiple tilt sensors and data processing modules; and pole meteorological acquisition devices, which are specifically designed to monitor the meteorological parameters of the environment where the power pole is located and typically include multiple sensors for temperature, humidity, wind speed, wind direction, and air pressure, along with data processing modules.

[0003] The inventors discovered in their research that existing power grid tower monitoring devices have at least the following drawbacks:

[0004] The accuracy of wind speed and direction monitoring results is poor. Summary of the Invention

[0005] The objectives of this invention include, for example, providing a power grid tower monitoring device that can improve the accuracy of wind speed and direction monitoring results, and can assess and predict the risk of tower collapse by combining wind speed, wind direction and tower tilt angle, which is beneficial for taking corresponding measures in advance.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] In a first aspect, the present invention provides a power grid tower monitoring device, comprising:

[0008] The system includes a base, a support cover, a controller, a reference air pressure sensor, and several ambient air pressure sensors. The base is used to install on the tower body, and the support cover is connected to the base. The support cover is provided with several ventilation channels, each of which is a conical channel with a diameter that gradually decreases from the outside to the inside.

[0009] The controller is installed on the support cover, and the reference air pressure sensor is installed on the support cover and located in the area surrounded by a plurality of environmental air pressure sensors. The environmental air pressure sensors are respectively installed in the ventilation channel and located on the inner side of the corresponding ventilation channel. The controller is also communicatively connected to the reference air pressure sensor and the plurality of environmental air pressure sensors.

[0010] In an optional embodiment, the angle between the generatrix of the conical surface where the ventilation channel is located and its centerline is θ, where θ < 10°.

[0011] In an optional embodiment, the ventilation channel has a large end and a small end opposite each other in its axial direction, the diameter of the large end being r1 and the diameter of the small end being r2, and the distance between the center of the large end and the center of the small end being L, where L > 5.68 (r1-r2).

[0012] In an optional embodiment, the power grid tower monitoring device further includes a solar panel, which is installed on the top outer side of the support cover; the solar panel is communicatively connected to the controller.

[0013] In an optional embodiment, the power grid tower monitoring device further includes an angle sensor, which is installed on the base, the bearing cover, or the controller, and is used to obtain the angle of inclination of the corresponding ventilation channel relative to the horizontal plane.

[0014] In an optional embodiment, the power grid tower monitoring device further includes multiple angle sensors, all of which are installed on the bearing cover. Each angle sensor corresponds to one of the multiple ventilation channels, and each angle sensor is used to obtain the angle of inclination of the corresponding ventilation channel relative to the horizontal plane.

[0015] In an optional embodiment, the angle between the centerline of the ventilation duct and the intersection line formed by the orthographic projection of the centerline on the horizontal plane is set as the angle at which the ventilation duct is inclined relative to the horizontal plane.

[0016] In an optional embodiment, the number of ventilation channels is four, and the four ventilation channels are divided into two groups. The two ventilation channels in the same group are arranged coaxially, and the two groups of ventilation channels are arranged orthogonally.

[0017] The number of the ambient air pressure sensors is four, and the four ambient air pressure sensors are respectively installed in the four ventilation channels.

[0018] In an optional embodiment, the support cover is provided with a windproof cavity that communicates with the external environment, and the reference air pressure sensor is installed inside the windproof cavity.

[0019] In an optional embodiment, the base is provided with a plurality of fixing holes, and a positioning suction cup is inserted into each fixing hole for adhering to the tower body.

[0020] In an optional embodiment, the power grid tower monitoring device further includes a driver, which is connected to both the base and the support cover. The driver is used to drive the support cover to rotate relative to the base; the driver is communicatively connected to the controller.

[0021] The beneficial effects of the embodiments of the present invention include, for example:

[0022] In summary, the power grid tower monitoring device provided in this embodiment, by setting a conical ventilation channel on the support cover and installing the environmental pressure sensor inside the ventilation channel, allows even small winds to be detected by the environmental pressure sensor due to the wind-gathering effect of the ventilation channel. The corresponding monitoring results are then transmitted to the controller, which obtains the environmental wind speed and direction. Furthermore, because the ventilation channel is conical, when the tower body sways slightly in the wind, the ventilation channel tilts along with the tower body, and the air inlet (outer port) also tilts accordingly. This allows the wind to directly act on the environmental pressure sensor without being blocked by the inner wall of the ventilation channel, thereby improving the accuracy of wind speed and direction measurements when the tower body is tilted. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the power grid tower monitoring device in this embodiment;

[0025] Figure 2 This is a cross-sectional view of a portion of the structure of the power grid tower monitoring device in this embodiment;

[0026] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0027] Figure 4 This is a schematic diagram of the ventilation channel in this embodiment;

[0028] Figure 5 This is a schematic diagram showing the tilt of the ventilation channel in this embodiment.

[0029] icon:

[0030] 100-Base; 110-Fixing hole; 120-Positioning suction cup; 200-Bearing cover; 210-Ventilation channel; 211-Large end; 212-Small end; 300-Controller; 400-Reference air pressure sensor; 500-Ambient air pressure sensor; 600-Angle sensor; 700-Solar panel. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0035] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0037] Please refer to Figures 1-5This embodiment provides a power grid tower monitoring device, which includes a base 100, a support cover 200, a controller 300, a reference air pressure sensor 400, and multiple ambient air pressure sensors 500. The base 100 is used to install on the tower body, and the support cover 200 is connected to the base 100. The support cover 200 is provided with multiple ventilation channels 210, each of which is a conical channel with a diameter that gradually decreases from the outside to the inside. The controller 300 is installed on the support cover 200, and the reference air pressure sensor 400 is installed on the support cover 200 and located within the area enclosed by the multiple ambient air pressure sensors 500. The multiple ambient air pressure sensors 500 are respectively installed in the multiple ventilation channels 210 and located on the inner side of the corresponding ventilation channels 210. The controller 300 is communicatively connected to both the reference air pressure sensor 400 and the multiple ambient air pressure sensors.

[0038] As described above, the power grid tower monitoring device provided in this embodiment has at least the following advantages:

[0039] By setting a conical ventilation channel 210 on the support cover 200, and installing the ambient air pressure sensor 500 inside and on the inner side of the ventilation channel 210, when wind is generated in the environment, the wind blows towards the monitoring device. Under the wind-gathering effect of the ventilation channel 210, even a small wind can be detected by the ambient air pressure sensor 500, and the corresponding monitoring result is transmitted to the controller 300, which obtains the ambient wind speed and direction. At the same time, since the ventilation channel 210 is a conical channel, when the tower body sways and tilts slightly under wind force, the ventilation channel 210 tilts along with the tower body, and the air inlet port, i.e., the outer port, also tilts accordingly. The wind can directly act on the ambient air pressure sensor through the ventilation channel 210 without being blocked by the inner wall of the ventilation channel 210, thereby improving the accuracy of wind speed and direction measurement results when the tower body is tilted.

[0040] It should be understood that the working principle of measuring wind speed and direction by using a reference bar pressure sensor 400 and multiple environmental bar pressure sensors 500 can be found in the applicant's prior patent application, patent number 202410362214.7, entitled "Wind Speed ​​and Direction Monitoring Device and Method". In this embodiment, to avoid repetition and redundancy, a detailed description is not provided.

[0041] The following embodiments illustrate the details of the power grid tower monitoring device of this application by way of example.

[0042] Please refer to Figures 1-5In this embodiment, optionally, the power grid tower monitoring device includes a base 100, a support cover 200, a controller 300, a reference air pressure sensor 400, four ambient air pressure sensors 500, four angle sensors 600, a solar panel 700, and a driver (not shown). The support cover 200 is mounted on top of the base 100, and the driver is mounted on the base 100 and connected to the support cover 200, enabling the support cover 200 to rotate relative to the base 100. The controller 300, reference air pressure sensor 400, four ambient air pressure sensors 500, four angle sensors 600, and solar panel 700 are all mounted on the support cover 200. The controller 300 is communicatively connected to the driver, reference air pressure sensor 400, four ambient air pressure sensors 500, and four angle sensors 600. The controller 300 is electrically connected to the solar panel 700, which provides power to the various electrical components.

[0043] Obviously, in some embodiments, the power grid tower monitoring device can also be equipped with a battery, which is electrically connected to the solar panel 700 and can provide power to various electrical components.

[0044] In this embodiment, optionally, multiple fixing holes 110 can be provided on the base 100. For example, the number of fixing holes 110 is four, distributed around the base 100 and located at the four corners of the same rectangle. A positioning suction cup 120 can be installed in each fixing hole 110. The base 100 is fixed to the tower body by multiple positioning suction cups 120, ensuring stable and reliable positioning. Obviously, in other embodiments, the base 100 can be connected to the tower body by structural components such as clips and bolts.

[0045] In this embodiment, optionally, the support cover 200 is provided with a plurality of ventilation channels 210, each ventilation channel 210 being a conical channel, the diameter of each ventilation channel 210 gradually decreasing from the outside to the inside. That is, each ventilation channel 210 has a large end 211 and a small end 212 in its axial direction, the diameter of the large end 211 being r1 and the diameter of the small end 212 being r2, the diameter of the large end 211 being larger than the diameter of the small end 212, and during operation, the large end 211 is located outside the small end 212.

[0046] Specifically, four ventilation channels 210 are provided on the carrier cover 200. The four ventilation channels 210 are evenly divided into two groups. Two ventilation channels 210 in the same group are arranged coaxially, and the two groups of ventilation channels 210 are arranged orthogonally. Each ventilation channel 210 is set as a conical channel, and the diameter of each ventilation channel 210 gradually decreases in the direction from the large end 211 to the small end 212. Four ambient air pressure sensors 500 are respectively installed in the four ventilation channels 210. Moreover, four angle sensors 600 are respectively installed directly above each ventilation channel 210. That is, when the carrier cover 200 is in a horizontal state, the center lines of the four ventilation channels 210 are all located in the horizontal plane and the included angle with the horizontal plane is zero degree. Each ventilation channel 210 has a central plane perpendicular to the horizontal plane and passing through the air passing center line, and the angle sensor 600 is located at the position where the central plane intersects the top surface of the carrier cover 200. It should be understood that the number of angle sensors 600 is selected as required and can also be installed at positions such as the base or the controller.

[0047] Meanwhile, in order to ensure that the ambient wind can smoothly enter the ventilation channel 210 and has a wind gathering effect, the included angle between the center line of the ventilation channel 210 and its bus bar is set as θ, where θ < 10°. Meanwhile, the distance between the center of the circle where the large end 211 of each ventilation channel 210 is located and the center of the circle where the small end 212 is located is set as L. Combining θ < 10° and the formula tanθ = (r1 - r2) / L, it can be known that:

[0048] (r1 - r2) / L < tan10°, and tan10° ≈ 0.176. By derivation, it can be obtained that:

[0049] L > 5.68(r1 - r2).

[0050] Therefore, in this embodiment, when designing the ventilation channel 210, with θ < 10° and L > 5.68(r1 - r2), while ensuring that the ventilation channel 210 has a good wind gathering effect, the probability of the inner wall surface of the ventilation channel 210 blocking the ambient wind when the pole tower body is tilted is reduced, and the accuracy of the wind speed and wind direction detection results of the pole tower body in the vertical state and the tilted state can be improved.

[0051] It should be noted that an angle sensor 600 is correspondingly arranged at each ventilation channel 210. The angle sensor 600 can obtain the inclination angle γ of the corresponding ventilation channel 210 relative to the horizontal plane when the pole tower body is tilted, and can compensate the influence on the measurement result when calculating the actual wind speed and wind direction. Specifically, the definition of the inclination angle γ of the ventilation channel 210 relative to the horizontal plane is as follows:

[0052] The angle between the centerline of the ventilation duct 210 and the line formed by the intersection of the centerline's orthographic projection on the horizontal plane, i.e., the orthographic projection of the centerline on the horizontal plane is a straight line, and the angle between this straight line and the centerline is γ. When the support cover 200 is in a horizontal state, the centerline and its orthographic projection on the horizontal plane coincide, and the tilt angle of the ventilation duct 210 is zero degrees. When the tower body tilts, causing the measuring device to tilt, the orthographic projection of the centerline on the horizontal plane forms an angle with the centerline, indicating that the monitoring device tilts along with the tower body by an angle γ.

[0053] It should be understood that when the tower body is not tilted and the monitoring device is horizontal, the area of ​​the air inlet is equal to the area of ​​the circle where the large end 211 is located, that is, S0=π*r1².

[0054] When the monitoring device tilts with the tower body, during wind speed measurement, multiple environmental pressure sensors rotate under the drive of the actuator. Each environmental pressure sensor obtains the maximum wind force value when it is facing the wind direction, and this maximum value is used for subsequent wind speed measurement. For details, please refer to the applicant's earlier patent application. In this way, each environmental pressure sensor has a maximum value. Under the action of the angle sensor 600, each environmental pressure sensor has a tilt angle γ value at the moment of maximum wind speed. Due to the existence of angle γ, when the environmental pressure sensor rotates to face the wind direction, the air inlet of the corresponding ventilation channel 210 is equivalent to an ellipse, and the air inlet area becomes: S1=π*r1*r1*cosγ=л*r1²*cosγ. Therefore, the wind speed influence coefficient μ=S1 / S0=π*r1²*cosA / (π*r1²)=cosγ. The wind speed influence coefficient μ is the wind speed compensation coefficient when the tilt angle changes, and the actual wind speed v=v0 / μ, where v0 is the wind speed calculated by the reference air pressure sensor 400 and multiple environmental air pressure sensors 500. In this way, the accurate wind speed can be obtained through algorithm compensation when the monitoring device tilts.

[0055] In this embodiment, optionally, a windproof cavity is provided in the middle of the support cover 200. The reference pressure sensor 400 can be located inside the windproof cavity, which is connected to the outside. The reference pressure sensor 400 is not affected by whether there is wind in the external environment, and the pressure value obtained is a reference value under the current environment. This allows the values ​​obtained by the reference pressure sensor 400 under different environments to be used as a reference for other environmental pressure sensors 500. It should be understood that the reference pressure sensor 400 is located within the area enclosed by multiple environmental pressure sensors 500, improving the structural compactness.

[0056] It should be understood that the driver can be a motor, etc.

[0057] Furthermore, the number and installation method of the solar panels 700 are not specifically limited in this embodiment, as long as they do not affect the normal use of the reference bar pressure sensor 400 and the ambient bar pressure sensor 500.

[0058] In addition, an angle meter can be installed on the support cover 200 or the base 100. The tilt angle of the tower body can be obtained through the angle meter. By measuring the wind speed and direction and the tilt angle of the tower body, the changing state of the tower body can be predicted, and protective measures can be taken for the tower body in advance.

[0059] The power grid tower monitoring device provided in this embodiment can not only measure the tilt angle of the tower body, but also combine the real-time wind speed and direction with the tilt angle to better predict the changing state of the tower body by considering multiple environmental factors, and take effective safety measures in advance.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A power grid tower monitoring device, characterized in that, include: The system comprises a base (100), a support cover (200), a controller (300), a reference air pressure sensor (400), and several ambient air pressure sensors (500). The base (100) is used to install on the tower body. The support cover (200) is connected to the base (100). The support cover (200) is provided with several ventilation channels (210). Each ventilation channel (210) is a conical channel, and the diameter of each ventilation channel (210) gradually decreases from the outside to the inside. The controller (300) is installed on the support cover (200), and the reference air pressure sensor (400) is installed on the support cover (200) and located in the area surrounded by a plurality of environmental air pressure sensors (500). The environmental air pressure sensors (500) are respectively installed in the ventilation channel (210) and located on the inner side of the corresponding ventilation channel (210). The controller (300) is simultaneously communicatively connected to the reference air pressure sensor (400) and the plurality of environmental air pressure sensors.

2. The power grid tower monitoring device according to claim 1, characterized in that: The angle between the generatrix of the conical surface where the ventilation channel (210) is located and its center line is θ, where θ < 10°.

3. The power grid tower monitoring device according to claim 2, characterized in that: The ventilation channel (210) has a large end (211) and a small end (212) opposite each other in its axial direction. The diameter of the large end (211) is r1, the diameter of the small end (212) is r2, and the distance between the center of the large end (211) and the center of the small end (212) is L, where L > 5.68 (r1-r2).

4. The power grid tower monitoring device according to any one of claims 1-3, characterized in that: The power grid tower monitoring device also includes a solar panel (700), which is installed on the top outer side of the support cover (200); the solar panel (700) is communicatively connected to the controller (300).

5. The power grid tower monitoring device according to any one of claims 1-3, characterized in that: The power grid tower monitoring device also includes an angle sensor (600), which is installed on the base, the bearing cover or the controller. The angle sensor (600) is used to obtain the angle of inclination of the corresponding ventilation channel (210) relative to the horizontal plane.

6. The power grid tower monitoring device according to claim 5, characterized in that: The angle between the centerline of the ventilation channel (210) and the intersection line formed by the orthographic projection of the centerline on the horizontal plane is set as the angle of inclination of the ventilation channel (210) relative to the horizontal plane.

7. The power grid tower monitoring device according to any one of claims 1-3, characterized in that: The number of ventilation channels (210) is four, and the four ventilation channels (210) are divided into two groups. The two ventilation channels (210) in the same group are arranged coaxially, and the two groups of ventilation channels (210) are arranged orthogonally. The number of the ambient air pressure sensors (500) is four, and the four ambient air pressure sensors (500) are respectively installed in the four ventilation channels (210).

8. The power grid tower monitoring device according to claim 7, characterized in that: The support cover (200) is provided with a windproof cavity that communicates with the external environment, and the reference air pressure sensor (400) is installed in the windproof cavity.

9. The power grid tower monitoring device according to claim 1, characterized in that: The base (100) is provided with a number of fixing holes (110), and each fixing hole (110) is provided with a positioning suction cup (120) for adsorbing onto the tower body.

10. The power grid tower monitoring device according to claim 1, characterized in that: The power grid tower monitoring device also includes a driver, which is connected to both the base (100) and the support cover (200). The driver is used to drive the support cover (200) to rotate relative to the base (100). The driver is also communicatively connected to the controller (300).

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