Tower tilt monitoring device based on laser sensor

Abstract

The present invention discloses a tower tilt monitoring device based on a laser sensor, which relates to the technical field of power equipment monitoring. The key points of the technical solution are: comprising a first ring seat, a second ring seat, a laser transmitter, a laser receiver and a processor; the first ring seat and the second ring seat are respectively installed on the tower and the tower base; the laser transmitter is installed on the first ring seat through a first driving member, and the first driving member can drive the laser transmitter to slide along the circumferential direction of the first ring seat; the laser receiver is installed on the second ring seat through a second driving member, and the second driving member can drive the laser receiver to slide along the circumferential direction of the second ring seat; the processor is used to compare and analyze the distance measurement value output by the laser receiver with the standard threshold value, and output a warning signal when the comparison is unqualified. The present invention can dynamically obtain the distance measurement values ​​obtained by different laser transmission paths, weaken the influence of environmental conditions on the measurement accuracy of the distance measurement value, and improve the accuracy and reliability of tower tilt monitoring.

Description

Technical Field

[0001] The invention relates to the technical field of power equipment monitoring, and more specifically, to a tower tilt monitoring device based on a laser sensor. Background Art

[0002] The tilt of transmission line towers is one of the important factors affecting the safe and stable operation of the power grid. The instability of land topography and geology can cause the towers to tilt. In severe cases, it may even cause tower collapse, disconnection, and tower collapse accidents, resulting in large-scale power outages and paralysis of transmission lines, which has brought huge economic losses to the country and the people, and seriously affected the safe and stable operation of the power grid. Online monitoring of the severity of the tilt of transmission line towers can reflect the status and development trend of transmission towers, so that problems can be discovered in time to reduce or avoid the occurrence of transmission accidents.

[0003] In the prior art, there is a method of monitoring the tilt state of transmission line towers by using sensor equipment such as laser sensors, but generally a single monitoring route is adopted. When affected by environmental conditions, such as rainy days, haze, strong winds and other adverse conditions, on the one hand, environmental interference leads to inaccurate measurement accuracy; on the other hand, the tower is affected by the environment and causes a small angle tilt, which easily causes frequent output of warning signals, making the accuracy and reliability of tower tilt monitoring relatively low.

[0004] Therefore, how to research and design a tower tilt monitoring device based on laser sensors that can overcome the above-mentioned defects is a problem that we urgently need to solve. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, an object of the present invention is to provide a tower tilt monitoring device based on a laser sensor.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A tower tilt monitoring device based on a laser sensor comprises a first ring seat, a second ring seat, a laser transmitter, a laser receiver and a processor;

[0007] The first ring seat and the second ring seat are respectively installed on the tower and the tower base, and the first ring seat and the second ring seat are arranged in parallel;

[0008] The laser emitter is installed on the first ring seat through a first driving member, and the first driving member can drive the laser emitter to slide along the circumferential direction of the first ring seat;

[0009] The laser receiver is installed on the second ring seat through a second driving member, and the second driving member can drive the laser receiver to slide along the circumferential direction of the second ring seat;

[0010] When the laser transmitter and the laser receiver slide simultaneously, the laser transmission distance is kept consistent when the tower is not tilted;

[0011] The processor is used to compare and analyze the distance measurement value output by the laser receiver with the standard threshold value, and output a warning signal when the comparison fails.

[0012] Furthermore, the processor is also configured with a statistical unit and a testing unit;

[0013] A statistical unit, used to output a test signal when N unqualified results are counted within a preset time period, N ≥ 1;

[0014] The inspection unit is used to perform linear fitting on the distance measurement value within 360 degrees of sliding of the laser receiver in response to the inspection signal; if the fitting curve is consistent with the standard straight line corresponding to the standard threshold, the unqualified result is initialized to zero; if the fitting curve is inconsistent with the standard straight line corresponding to the standard threshold, an early warning signal is output.

[0015] Furthermore, the first ring seat and the second ring seat are coaxially arranged.

[0016] Furthermore, the diameter of the first ring seat is smaller than the diameter of the second ring seat.

[0017] Furthermore, the laser transmission route between the laser transmitter and the laser receiver is distributed along a busbar between the first ring seat and the second ring seat.

[0018] Furthermore, the laser transmission routes between the laser transmitter and the laser receiver intersect at the central axis between the first ring seat and the second ring seat.

[0019] Furthermore, the laser transmitter and the laser receiver slide synchronously with a preset circular angle difference.

[0020] Furthermore, the preset circular angle difference has a value range of 60-120°.

[0021] Furthermore, the processor is electrically connected to a signal transmitter, and the signal transmitter transmits the warning signal to a host computer by wireless transmission.

[0022] Furthermore, the processor is electrically connected to a signal receiver, and the signal receiver receives the control command output by the host computer in a wireless transmission manner.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The tower tilt monitoring device based on laser sensor proposed in the present invention can dynamically obtain the distance measurement values ​​obtained by different laser transmission paths by synchronously driving the laser transmitter and the laser receiver to slide, effectively weakening the influence of environmental conditions on the measurement accuracy of the distance measurement value, and improving the accuracy and reliability of tower tilt monitoring;

[0025] 2. The present invention performs an overall inspection of one or more unqualified results of the preliminary inspection in a linear fitting manner, effectively avoiding the frequent output of warning signals due to the small angle range tilt of the tower caused by environmental conditions, such as strong wind, and further improving the accuracy and reliability of tower tilt monitoring;

[0026] 3. The present invention uses a first ring seat and a second ring seat with different diameters, or monitors in an offset sliding manner, which changes the direction of the laser transmission path and further weakens the influence of environmental conditions on the measurement accuracy of the distance measurement value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0028] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0029] Figure 2 It is a working principle diagram in an embodiment of the present invention.

[0030] Marks and corresponding parts names in the attached drawings:

[0031] 1. First ring seat; 2. First driving member; 3. Laser transmitter; 4. Second ring seat; 5. Second driving member; 6. Laser receiver. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0033] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0034] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] Embodiment: A tower tilt monitoring device based on a laser sensor, such as Figure 1 and Figure 2 As shown, it includes a first ring seat 1, a second ring seat 4, a laser transmitter 3, a laser receiver 6 and a processor. The first ring seat 1 and the second ring seat 4 are respectively installed on the pole tower and the tower base, and the first ring seat 1 and the second ring seat 4 are arranged in parallel; the laser transmitter 3 is installed on the first ring seat 1 through the first driver 2, and the first driver 2 can drive the laser transmitter 3 to slide along the circumferential direction of the first ring seat 1; the laser receiver 6 is installed on the second ring seat 4 through the second driver 5, and the second driver 5 can drive the laser receiver 6 to slide along the circumferential direction of the second ring seat 4; when the laser transmitter 3 and the laser receiver 6 slide at the same time, the laser transmission distance is kept consistent when the pole tower is not tilted; the processor is used to compare and analyze the distance measurement value output by the laser receiver 6 with the standard threshold, and output a warning signal when the comparison is unqualified. For example, a comparator can be used for comparison and analysis.

[0037] It should be noted that both the first driving member 2 and the second driving member 5 can adopt a servo guide rail driving structure.

[0038] The present invention can dynamically obtain distance measurement values ​​obtained by different laser transmission paths by synchronously driving the laser transmitter 3 and the laser receiver 6 to slide, effectively weakening the influence of environmental conditions on the measurement accuracy of the distance measurement value, and improving the accuracy and reliability of tower inclination monitoring;

[0039] In this embodiment, the processor is also configured with a statistical unit and a test unit; the statistical unit is used to output a test signal when N unqualified results are counted within a preset time period, N ≥ 1; the test unit is used to perform linear fitting on the distance measurement value within 360 degrees of sliding of the laser receiver 6 in response to the test signal; if the fitting curve is consistent with the standard straight line corresponding to the standard threshold, the unqualified result is initialized to zero; if the fitting curve is inconsistent with the standard straight line corresponding to the standard threshold, a warning signal is output.

[0040] The present invention performs an overall inspection on one or more unqualified results of the preliminary inspection by linear fitting, effectively avoiding the situation where warning signals are frequently output due to small-angle tilt of the tower caused by environmental conditions, such as strong winds, and further improves the accuracy and reliability of tower tilt monitoring.

[0041] In this embodiment, the first ring seat 1 and the second ring seat 4 are coaxially arranged. If the diameters of the first ring seat 1 and the second ring seat 4 are the same, they can also be staggered.

[0042] In this embodiment, the diameter of the first ring seat 1 is smaller than the diameter of the second ring seat 4 .

[0043] As an optional implementation, the laser transmission route between the laser transmitter 3 and the laser receiver 6 is distributed along the busbar between the first ring seat 1 and the second ring seat 4 .

[0044] As another optional implementation, the laser transmission routes between the laser transmitter 3 and the laser receiver 6 intersect at the central axis between the first ring seat 1 and the second ring seat 4 .

[0045] In addition, as another optional implementation, the laser transmitter 3 and the laser receiver 6 slide synchronously with a preset circumferential angle difference. The preset circumferential angle difference has a value range of 60-120°.

[0046] The present invention uses the first ring seat 1 and the second ring seat 4 with different diameters, or monitors in a displaced sliding manner, thereby changing the direction of the laser transmission path and further weakening the influence of environmental conditions on the measurement accuracy of the distance measurement value.

[0047] The processor is electrically connected to a signal transmitter, which transmits the warning signal to the host computer by wireless transmission. The processor is electrically connected to a signal receiver, which receives the control command output by the host computer by wireless transmission.

[0048] Working principle: The present invention can dynamically obtain distance measurement values ​​obtained by different laser transmission paths by synchronously driving the laser transmitter 3 and the laser receiver 6 to slide, effectively weakening the influence of environmental conditions on the measurement accuracy of distance measurement values ​​and improving the accuracy and reliability of tower inclination monitoring.

[0049] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tower tilt monitoring device based on a laser sensor, characterized in that: It comprises a first ring seat (1), a second ring seat (4), a laser transmitter (3), a laser receiver (6) and a processor; The first ring seat (1) and the second ring seat (4) are respectively installed on the pole tower and the tower base, and the first ring seat (1) and the second ring seat (4) are arranged in parallel; The laser emitter (3) is mounted on the first ring seat (1) via a first driving member (2), and the first driving member (2) can drive the laser emitter (3) to slide along the circumferential direction of the first ring seat (1); The laser receiver (6) is mounted on the second ring seat (4) via a second driving member (5), and the second driving member (5) can drive the laser receiver (6) to slide along the circumferential direction of the second ring seat (4); When the laser transmitter (3) and the laser receiver (6) slide simultaneously, the laser transmission distance is kept consistent when the tower is not tilted; The processor is used to compare and analyze the distance measurement value output by the laser receiver (6) with the standard threshold value, and output a warning signal when the comparison fails; The first ring seat (1) and the second ring seat (4) are coaxially arranged; The diameter of the first ring seat (1) is smaller than the diameter of the second ring seat (4); The laser transmission route between the laser transmitter (3) and the laser receiver (6) is distributed along a busbar between the first ring seat (1) and the second ring seat (4); The laser transmission route between the laser transmitter (3) and the laser receiver (6) intersects at the central axis between the first ring seat (1) and the second ring seat (4).

2. The tower tilt monitoring device based on laser sensor according to claim 1 is characterized in that: The processor is also configured with a statistical unit and a testing unit; A statistical unit, used to output a test signal when N unqualified results are counted within a preset time period, N ≥ 1; The inspection unit is used to perform linear fitting on the distance measurement value within 360 degrees of sliding of the laser receiver (6) in response to the inspection signal; if the fitting curve is consistent with the standard straight line corresponding to the standard threshold, the unqualified result is initialized to zero; If the fitting curve is inconsistent with the standard straight line corresponding to the standard threshold, an early warning signal is output.

3. The tower tilt monitoring device based on laser sensor according to claim 1 is characterized in that: The laser transmitter (3) and the laser receiver (6) slide synchronously with a preset circular angle difference.

4. The tower tilt monitoring device based on laser sensor according to claim 3 is characterized in that: The preset circular angle difference has a value range of 60-120°.

5. The tower inclination monitoring device based on a laser sensor according to any one of claims 1 to 4, characterized in that: The processor is electrically connected to a signal transmitter, and the signal transmitter transmits the warning signal to the host computer in a wireless transmission manner.

6. The tower inclination monitoring device based on a laser sensor according to any one of claims 1 to 4, characterized in that: The processor is electrically connected to a signal receiver, and the signal receiver receives the control command output by the host computer in a wireless transmission manner.

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