Anti-electromagnetic interference cable wind power and wind direction measuring equipment

Abstract

The utility model discloses an anti-electromagnetic interference cable wind power and wind direction measuring device, and relates to the technical field of wind power and wind direction measurement. Comprising a bottom plate, a fixed shell is hinged to the center of the top face of the bottom plate, a detection assembly used for monitoring cable shaking is arranged in the fixed shell, monitoring data of the detection assembly are transmitted to a receiver through optical signals, and a leveling assembly used for adjusting the horizontal state of the fixed shell is arranged between the bottom plate and the fixed shell; the detection assembly comprises a wire jacket, the wire jacket sleeves the cable and is in sliding connection with the cable, a plurality of cables are fixedly connected to the outer wall of the wire jacket, measuring parts are arranged on the cables, and the ends, away from the wire jacket, of the cables are fixedly connected with the inner wall of the fixed shell. According to the utility model, the fixed shell can be leveled through the leveling assembly, so that the fixed shell is in a horizontal state; and the offset of the wire sleeve in the fixed shell is detected through the measuring part, and a detection result can be transmitted to the receiver through an optical signal, so that the wind power and the wind direction can be effectively measured.

Description

Technical Field

[0001] The utility model relates to the technical field of wind force and direction measurement, in particular to a cable wind force and direction measurement device capable of resisting electromagnetic interference. Background Art

[0002] In meteorology, the direction from which the wind blows is defined as the wind direction; wind force refers to the mechanical force obtained from the wind. People generally use measuring equipment to detect wind force and direction.

[0003] When existing measuring equipment monitors overhead cables, the traditional method is to use electric current to measure wind force and direction, but it is inconvenient to automatically adjust according to the wind direction and has high limitations. Mechanical measurement has low accuracy, large size, is easily affected by environmental factors such as temperature, and is difficult to achieve automatic measurement. It is basically eliminated at present. At present, resistance strain gauges are usually used to monitor overhead cables. However, resistance strain gauges measure the relative strain of the object by measuring the slight change in the resistance value of the strain gauge. The result is a relative value, which cannot be used for long-term monitoring and is easily affected by electromagnetic interference.

[0004] Therefore, there is an urgent need for a cable wind force and direction measuring device that is resistant to electromagnetic interference and can effectively measure the wind force and direction when the overhead cables shake due to external reasons. Utility Model Content

[0005] The utility model aims to provide a cable wind force and direction measuring device which is resistant to electromagnetic interference, so as to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following solutions: The utility model provides an electromagnetic interference-resistant cable wind force and direction measuring device, comprising a bottom plate, a fixed shell is hinged at the center of the top surface of the bottom plate, a detection component for monitoring cable shaking is arranged in the fixed shell, the monitoring data of the detection component is transmitted to a receiver via an optical signal, and a leveling component for adjusting the horizontal state of the fixed shell is arranged between the bottom plate and the fixed shell;

[0007] The detection component includes a wire sleeve, which is arranged on the cable and is slidably connected to the cable. A plurality of cables are fixedly connected to the outer wall of the wire sleeve, and a measuring part is provided on the cable. One end of the cable away from the wire sleeve is fixedly connected to the inner wall of the fixed shell.

[0008] Preferably, the fixed shell is hollow.

[0009] Preferably, the measuring part comprises a damper, the damper is arranged close to the wire sleeve, a fiber grating sensor is arranged on a side of the damper away from the wire sleeve, and the damper and the fiber grating sensor are mounted on the cable.

[0010] Preferably, a spring is installed on the damper.

[0011] Preferably, a support is fixedly connected to the center of the top surface of the bottom plate, and the support is hinged to the fixed housing.

[0012] Preferably, a plurality of the cables are arranged on the outer wall of the wire sleeve at equal intervals.

[0013] Preferably, the leveling assembly includes a plurality of leveling bolts. One end of the leveling bolt is threadedly connected to the bottom plate, and the other end of the leveling bolt abuts against the bottom of the fixed housing.

[0014] Preferably, the plurality of leveling bolts are arranged on the bottom plate at equal intervals.

[0015] The present utility model discloses the following technical effects:

[0016] The present utility model can level the fixed housing through the leveling assembly, so that the fixed housing is in a horizontal state; when the cable sways due to external reasons, the wire sleeve deflects, and the measuring part detects the deflection amount of the wire sleeve in the fixed housing, and the detection result can be transmitted to the receiver through an optical signal, and the wind direction and wind speed can be effectively measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the present utility model installed on an electric tower;

[0020] Among them, 1. Bottom plate; 2. Leveling bolt; 3. Support; 4. Fixed housing; 5. Damper; 6. Wire sleeve; 7. Level; 8. Fiber Bragg grating sensor; 9. Spring; 10. Cable. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Embodiment 1

[0024] Reference Figure 1 The utility model discloses an electromagnetic interference resistant cable wind force and direction measuring device, comprising a base plate 1, a fixed shell 4 is hinged at the center of the top surface of the base plate 1, a detection component for monitoring cable shaking is arranged in the fixed shell 4, the monitoring data of the detection component is transmitted to the receiver through an optical signal, and a leveling component for adjusting the horizontal state of the fixed shell 4 is arranged between the base plate 1 and the fixed shell 4; the detection component comprises a wire sleeve 6, the wire sleeve 6 is sleeved on the cable and is slidably connected to the cable, a plurality of cables 10 are fixedly connected to the outer wall of the wire sleeve 6, a measuring part is arranged on the cable 10, and one end of the cable 10 away from the wire sleeve 6 is fixedly connected to the inner wall of the fixed shell 4.

[0025] The utility model can level the fixed shell 4 through the leveling component, so that the fixed shell 4 is in a horizontal state; when the cable shakes due to external reasons, the wire sleeve 6 is offset, and the measuring part detects the offset of the wire sleeve 6 in the fixed shell 4, and can transmit the detection result to the receiver through the optical signal, so as to effectively measure the wind force and direction.

[0026] In a further optimized solution, the fixed housing 4 is hollow so that the cable can pass through the fixed housing 4 .

[0027] According to a further optimized solution, the measuring part includes a damper 5 , which is arranged close to the wire sleeve 6 , and a fiber grating sensor 8 is arranged on a side of the damper 5 away from the wire sleeve 6 , and the damper 5 and the fiber grating sensor 8 are installed on a cable 10 .

[0028] The fiber grating sensor 8 uses Bragg FBG fiber grating as the sensitive element, and cooperates with a fiber grating demodulator (FBG analyzer) to measure, detect and monitor strain after being fixed to the object being measured. The fiber grating sensor 8 can accurately sense the movement of the cable under the action of wind and the action of force, and transmit it to the receiver through an optical signal. By converting the data received by the receiver, the direction and magnitude of the wind action can be calculated.

[0029] Both measurement and signal transmission utilize optical signals, which have the characteristics of anti-electromagnetic interference, high precision, good weather resistance, and long transmission distance.

[0030] In a further optimized solution, a spring 9 is installed on the damper 5. The spring 9 and the damper 5 can prevent the vibration of the cable caused by wind vibration, thus affecting the measurement.

[0031] In a further optimized solution, a support 3 is fixedly connected to the center of the top surface of the bottom plate 1, and the support 3 is hinged to the fixed outer shell 4. Through the support 3, the center of the bottom surface of the fixed outer shell 4 is hinged, enabling the fixed outer shell 4 to tilt in different directions, facilitating the adjustment by the leveling assembly.

[0032] In a further optimized solution, a plurality of cables 10 are arranged at equal intervals on the outer wall of the wire sleeve 6.

[0033] In a further optimized solution, the leveling assembly includes a plurality of leveling bolts 2. One end of the leveling bolt 2 is threadedly connected to the bottom plate 1, and the other end of the leveling bolt 2 abuts against the bottom of the fixed outer shell 4. A plurality of leveling bolts 2 are arranged around the support 3.

[0034] In a further optimized solution, the plurality of leveling bolts 2 are arranged at equal intervals on the bottom plate 1.

[0035] By rotating the leveling bolt 2, the fixed outer shell 4 is adjusted. A plurality of level gauges 7 are arranged on the top surface of the fixed outer shell 4, and the fixed outer shell 4 can be leveled through the level gauges 7.

[0036] Refer to Figure 2 , by fixedly installing the bottom plate 1 on the extension frame of the measured electric tower, after fixing, the fixed outer shell 4 is leveled through the leveling assembly according to the level gauge 7. The measured cable is passed through the wire sleeve 6. When the cable swings due to external reasons, the wire sleeve 6 deflects, and the fiber Bragg grating sensor 8 detects the deflection amount within the plane of the wire sleeve 6. The fiber Bragg grating sensor 8 transmits the detection result to the receiver; it can measure the swinging condition of the cable within the plane, and the structural form is simple and convenient for calculation and analysis.

[0037] Working process: First, the bottom plate 1 is fixed on the extension frame of the electric tower. After fixing, the fixed outer shell 4 is leveled through the leveling bolt 2 according to the level gauge 7. Then the cable is passed through the wire sleeve 6. When the cable shakes due to external reasons, the wire sleeve 6 deflects. The originally stable spring 9 and damper 5 change under the action of the wire sleeve 6. The fiber Bragg grating sensor 8 detects the displacement amount of the deformation within the plane and outputs the displacement amount to the receiver through the optical fiber, and the position data is calculated by the receiver.

[0038] Embodiment 2

[0039] The difference between this embodiment and the first embodiment is that three cables 10 are provided, and the three cables 10 are arranged at equal intervals along the outer wall of the wire sleeve 6, that is, the included angle between two adjacent cables 10 is 120°; three leveling bolts 2 are provided, and the three leveling bolts 2 are arranged at equal intervals.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0041] The embodiments described above are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A cable wind force and direction measuring device resistant to electromagnetic interference, characterized in that: The invention comprises a bottom plate (1), a fixed housing (4) being hinged at the center of the top surface of the bottom plate (1), a detection component for monitoring cable shaking being arranged inside the fixed housing (4), monitoring data of the detection component being transmitted to a receiver via an optical signal, and a leveling component for adjusting the horizontal state of the fixed housing (4) being arranged between the bottom plate (1) and the fixed housing (4); The detection component comprises a wire sleeve (6), the wire sleeve (6) is sleeved on the cable and slidably connected to the cable, a plurality of cables (10) are fixedly connected to the outer wall of the wire sleeve (6), a measuring part is provided on the cable (10), and one end of the cable (10) away from the wire sleeve (6) is fixedly connected to the inner wall of the fixed shell (4).

2. The cable wind force and direction measuring device against electromagnetic interference according to claim 1, characterized in that: The fixed shell (4) is hollow.

3. The cable wind force and direction measuring device against electromagnetic interference according to claim 1, characterized in that: The measuring part comprises a damper (5), the damper (5) is arranged close to the wire sleeve (6), a fiber optic Bragg grating sensor (8) is arranged on the side of the damper (5) away from the wire sleeve (6), and the damper (5) and the fiber optic Bragg grating sensor (8) are installed on the cable (10).

4. The cable wind force and direction measuring device against electromagnetic interference according to claim 3, characterized in that: A spring (9) is installed on the damper (5).

5. The cable wind force and direction measuring device against electromagnetic interference according to claim 1, characterized in that: A support (3) is fixedly connected to the center of the top surface of the bottom plate (1), and the support (3) is hinged to the fixed shell (4).

6. The cable wind force and direction measuring device against electromagnetic interference according to claim 1, characterized in that: A plurality of cables (10) are arranged at equal intervals on the outer wall of the wire sleeve (6).

7. The cable wind force and direction measuring device against electromagnetic interference according to claim 1, characterized in that: The leveling assembly comprises a plurality of leveling bolts (2), one end of each of the leveling bolts (2) being threadedly connected to the base plate (1), and the other end of each of the leveling bolts (2) being in contact with the bottom of the fixed housing (4).

8. The cable wind force and direction measuring device against electromagnetic interference according to claim 7, characterized in that: A plurality of the leveling bolts (2) are arranged on the base plate (1) at equal intervals.

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