An on-line monitoring system and monitoring method for pole and tower settlement

Abstract

The present invention discloses an on-line monitoring system and method for tower settlement. By setting a plumb bob and using the gravity direction as the measurement reference, and cooperating with an angle sensor, the on-line monitoring of tower settlement is accurately realized, avoiding the influence of the traditional measurement method without a measurement reference or the deviation of the measurement reference on the measurement result. The use of a high-precision angle sensor can not only measure the offset settlement angle of the tower, but also calculate the actual settlement value of the tower according to the size of the tower, realizing long-term and reliable on-line monitoring of tower settlement.

Description

Technical Field

[0001] The present invention relates to the technical field of on-line monitoring of transmission lines, and particularly to an on-line monitoring system and method for tower settlement. Background Art

[0002] The statements in this section merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] During the long-term use of power towers, due to changes in geological conditions, the tower foundations often undergo adverse changes such as settlement, cracking, and sliding, resulting in deformation, settlement, and even collapse of the towers, seriously affecting power supply and causing huge economic losses.

[0004] Currently, the most common method for measuring tower settlement is to use Beidou differential positioning technology to monitor the settlement displacement of the tower, but this method is only applicable to flat terrain areas. There is also a method of measuring the settlement of the tower by means of laser, etc. Although this method has high measurement accuracy, it cannot guarantee the accuracy of the measurement reference and needs to default that the measurement reference is ideal. If the laser target or other measurement references undergo settlement or displacement, the measurement results will deviate greatly. Summary of the Invention

[0005] To solve the deficiencies of the prior art, in the first aspect of the present invention, an on-line monitoring system for tower settlement is provided, which includes a tower, a mounting frame, and a box body, and a monitoring device is arranged inside the box body.

[0006] The on-line monitoring system for tower settlement is powered by a solar panel.

[0007] The mounting frame is fixedly connected to the tower legs in a cross shape, and the box body is horizontally mounted on the mounting frame.

[0008] Further, the box body is a rectangular parallelepiped with a ceramic structure.

[0009] Further, the box body is fixedly connected to the cross position of the mounting frame by brazing or bonding.

[0010] Further, the center of the bottom surface of the box body coincides with the center of the cross position of the mounting frame.

[0011] The monitoring device includes a host and a measurement unit. The host includes a microprocessor, a power module, and a communication module. The measurement unit includes a fixed rod, a first rotating member, a first connecting rod, a second rotating member, a second connecting rod, and a plumb bob, and angle sensors are arranged on the first rotating member and the second rotating member.

[0012] The upper end of the fixed rod is fixedly connected to the center position of the top of the box body. The lower end of the fixed rod is rotatably connected to the upper end of the first connecting rod through a first rotating member. The lower end of the first connecting rod is rotatably connected to the upper end of the second connecting rod through a second rotating member. A weight is fixedly connected to the lower end of the second connecting rod.

[0013] Further, the axis of the first rotating member is perpendicular to the long side of any one of the mounting frames in space, and the axis of the second rotating member is perpendicular to the long side of the other mounting frame in space.

[0014] Further, the settlement value of the tower leg is calculated according to the measured settlement angle and the length of the mounting frame.

[0015] The second aspect of the present invention provides a method for on-line monitoring of tower settlement, including:

[0016] Ensure that the measuring structure is always vertically downward through the weight;

[0017] The directions of the axes of the two rotating members equipped with angle sensors are respectively perpendicular to the two diagonals of the tower to be measured;

[0018] Calculate the current settlement amount of the tower through the current reading of the angle sensor and the length of the measured diagonal.

[0019] Further, calculate the cumulative settlement amount of the tower through the historical readings of the angle sensor. When the cumulative settlement amount of the tower or the settlement angle in a single direction exceeds the threshold, the monitoring system gives an alarm.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The present invention realizes the on-line measurement of tower settlement through the cooperation of a weight and an angle sensor. Taking the vertically downward weight as a reference, it avoids the influence of the traditional measurement method without a measurement reference or the deviation of the measurement reference on the measurement result;

[0022] 2. The present invention adopts a high-precision angle sensor, which can not only measure the offset settlement angle of the tower, but also calculate the actual settlement value of the tower according to the size of the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a system block diagram of the monitoring device of the present invention.

[0026] Figure 3 This is a schematic structural diagram of the measurement unit of the present invention.

[0027] Among them, 1 - pole tower, 2 - mounting frame, 3 - box body, 311 - fixed rod, 312 - first connecting rod, 313 - second connecting rod, 321 - first rotating member, 322 - second rotating member, 33 - plumb bob, 4 - solar panel. Detailed implementation manners

[0028] The present invention will be further described below in conjunction with the drawings and embodiments.

[0029] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further descriptions of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0030] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only relational terms determined for the convenience of describing the structural relationship of each component or element of the present invention and do not specifically refer to any component or element of the present invention and should not be construed as a limitation of the present invention.

[0032] In the present invention, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be a fixed connection, an integral connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate medium. For those related scientific research or technical personnel in the field, the specific meaning of the above terms in the present invention can be determined according to specific circumstances and should not be construed as a limitation of the present invention.

[0033] Embodiment 1:

[0034] Embodiment 1 of the present invention provides an on-line monitoring system for pole tower settlement.

[0035] As Figure 1 shown, an on-line monitoring system for pole tower settlement includes a pole tower 1, a mounting frame 2 and a box body 3. The monitoring device is arranged inside the box body 3 and is powered by a solar panel 4.

[0036] The mounting frame 2 is welded by two flat steels, and is fixedly connected to the tower legs of the tower in a cross shape. One flat steel is fixedly connected to tower legs A and D at positions A1 and D1, and the other flat steel is fixedly connected to tower legs B and C at positions B1 and C1. During actual installation, the existing cross-arm structures A1B1, B1D1, C1D1, and A1C1 on the tower body can be used for auxiliary installation to ensure that points A1, B1, C1, D1 and the mounting frame are all on the same horizontal plane.

[0037] To ensure the insulation of the box body and guarantee the stable operation of the internal measurement unit, the box body is designed as a cuboid of ceramic structure, and is fixedly connected to the cross position of the mounting frame by means of brazing or bonding, etc., and it is ensured that the center of the bottom surface of the box body coincides with the center point of the cross position of the mounting frame.

[0038] As Figure 2 shown, the monitoring device includes a host and a measurement unit. The host includes a microprocessor, a power module, and a communication module. The measurement unit includes an angle sensor A and an angle sensor B. The angle sensor is used to measure the angle change amount. The microprocessor receives the measurement electrical signal of the angle sensor and calculates the settlement value of the tower pole, and sends it to the control center through the communication module.

[0039] The measurement principle is as Figure 3 shown. Among them, the upper end of the fixed rod 311 is fixedly connected to the center position of the top of the box body and it is ensured that there is no relative rotation. The lower end of the fixed rod 311 is rotationally connected to the upper end of the first connecting rod 312 through the first rotating member 321. The lower end of the first connecting rod 312 is rotationally connected to the upper end of the second connecting rod 313 through the second rotating member. A weight 33 is fixedly connected to the lower end of the second connecting rod 313. An angle sensor A is arranged on the first rotating member 321 for measuring the rotation angle of the first connecting rod 312 relative to the fixed rod 311. An angle sensor B is arranged on the second rotating member 322 for measuring the rotation angle of the second connecting rod 313 relative to the first connecting rod 312. The axis of the first rotating member 321 is perpendicular to the long side of any flat steel of the mounting frame in space, and the axis of the second rotating member 322 is perpendicular to the long side of the other flat steel of the mounting frame in space.

[0040] In this embodiment, the lengths of the four cross-arms A1B1, B1D1, C1D1, and A1C1 are equal, that is, the quadrilateral A1B1C1D1 is a square. At this time, the two flat steels A1D1 and B1C1 of the mounting frame are perpendicular; the axis of the first rotating member 321 is perpendicular to B1C1, that is, in the same direction as A1D1, and the axis of the second rotating member 322 is perpendicular to A1D1, that is, in the same direction as B1C1.

[0041] When the pole tower undergoes irregular settlement, taking tower leg B as an example, assuming that tower leg B settles, the pole tower will tilt as a whole towards the direction of tower leg B. At this time, the mounting frame and the box body will tilt accordingly, and the fixed rod 311 fixedly connected to the box body will shift. Under the action of gravity, the plumb bob 33, the second connecting rod 313, the second rotating member 322, and the first connecting rod 312 still point vertically downward. The first connecting rod 312 rotates with the fixed rod 311 at the first rotating member 321. The angle sensor A reads the angle change and sends an electrical signal to the microprocessor. The microprocessor obtains the electrical signal, and after processing, it can obtain the settlement direction (the positive or negative of the angle change) and the settlement angle, and sends them to the control center through the communication module.

[0042] Furthermore, the actual settlement value of tower leg B this time can also be calculated according to the measured settlement angle and the length of B1C1.

[0043] Embodiment 2:

[0044] The embodiment 2 of the present invention provides a method for on-line monitoring of pole tower settlement, including:

[0045] Using a plumb bob to ensure that the measurement structure always points vertically downward;

[0046] The directions of the axes of the two rotating members equipped with angle sensors are respectively perpendicular to the two diagonals of the pole tower to be measured;

[0047] Calculating the settlement amount of the pole tower this time through the current reading of the angle sensor and the length of the measured diagonal.

[0048] Furthermore, calculating the cumulative settlement amount of the pole tower through the historical readings of the angle sensor. When the cumulative settlement amount of the pole tower or the settlement angle in a single direction exceeds the threshold, the monitoring system gives an alarm.

[0049] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0050] Although the specific implementation manners of the present invention are described above in conjunction with the drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the present invention.

Claims

1. An on-line monitoring system for pole tower settlement, characterized in that, It includes a pole tower, a mounting frame and a box body; the monitoring device is arranged inside the box body; the mounting frame is fixedly connected to the tower legs of the pole tower in a cross shape, and the box body is horizontally mounted on the mounting frame; The monitoring device includes a main unit and a measuring unit. The main unit includes a microprocessor, a power module and a communication module. The measuring unit includes a fixed rod, a first rotating member, a first connecting rod, a second rotating member, a second connecting rod and a plumb bob. Angle sensors are arranged on the first rotating member and the second rotating member; The upper end of the fixed rod is fixedly connected to the center position of the top of the box body. The lower end of the fixed rod is rotatably connected to the upper end of the first connecting rod through the first rotating member. The lower end of the first connecting rod is rotatably connected to the upper end of the second connecting rod through the second rotating member. A plumb bob is fixedly connected to the lower end of the second connecting rod; The center of the bottom surface of the box body coincides with the center of the intersection position of the mounting frame; The axis of the first rotating member is perpendicular to the long side of any one mounting frame in space, and the axis of the second rotating member is perpendicular to the long side of the other mounting frame in space.

2. The on-line monitoring system for pole tower settlement according to claim 1, characterized in that, The on-line monitoring system for pole tower settlement is powered by a solar panel.

3. The on-line monitoring system for pole tower settlement according to claim 1, characterized in that, The box body is a cuboid made of ceramic structure.

4. The on-line monitoring system for pole tower settlement according to claim 3, characterized in that, The box body is fixedly connected to the intersection position of the mounting frame by brazing or bonding.

5. The on-line monitoring system for tower settlement according to claim 1, characterized in that, Calculate the settlement value of the tower leg according to the measured settlement angle and the length of the mounting frame.

6. An on-line monitoring method for tower settlement, which adopts an on-line monitoring system for tower settlement as described in any one of claims 1-5, is characterized in that, It includes: Ensure that the measuring structure is always vertically downward through the plumb bob; The directions of the axes of the two rotating members equipped with angle sensors are respectively perpendicular to the two diagonals of the pole tower to be measured; Calculate the current settlement amount of the pole tower through the current reading of the angle sensor and the length of the measured diagonal.

7. The on-line monitoring method for tower pole settlement according to claim 6, characterized in that, Calculate the cumulative settlement amount of the pole tower through the historical readings of the angle sensor.

8. The on-line monitoring method for tower settlement according to claim 6, wherein, When the cumulative settlement amount of the pole tower or the settlement angle in a single direction exceeds the threshold, the monitoring system gives an alarm.

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