A trigger-type anti-dancing device, a wire dancing monitoring device and a method
By combining the trigger-type anti-dancing device with detuning, weight pressure and energy consumption functions, the shortcomings of wire dancing suppression and monitoring in the existing technology are solved, and multi-directional anti-dancing and real-time monitoring are realized, which is suitable for the field of power grid disaster prevention and mitigation.
Patent Information
- Application Number
- CN201911191288.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-11-28
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2039-11-28
AI Technical Summary
The existing anti-dancing device has a single function and cannot effectively suppress the dancing of the conductor and cannot realize monitoring. Especially in the case of uneven ice coverage, the anti-dancing device has great limitations.
A trigger-type anti-dancing device is used, including a pendulum housing, a trigger-type sensor, and the first and second springs. The sensor is used to collect the wire position coding information. Combined with the detuning, weight and energy consumption effects, the anti-dancing device has a multi-directional anti-dancing function and realizes wire dancing monitoring through a relay system.
It effectively suppresses conductor galloping, reduces the risk of galloping in low wind speeds and thin ice cover, realizes protection against multi-degree-of-freedom coupled vibration, and has the ability to monitor conductor galloping in real time, with low power consumption and high reliability.
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Figure CN111030020B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of disaster prevention and reduction of power grids, and in particular to a trigger-type anti-dancing device, a wire dancing monitoring device and a method. Background Art
[0002] Conductor galloping is the low-frequency, high-amplitude self-excited vibration of overhead conductors subjected to lateral wind forces and uneven circumferential ice coverage. This phenomenon forms standing or traveling waves with one, two, or three antinodes within a conductor. The conductor primarily moves vertically, sometimes also in an elliptical pattern, with the major axis of the ellipse in the vertical or offset direction, sometimes accompanied by conductor torsion. The frequency of vertical vibration is approximately 0.1 to 1 Hz, with an amplitude ranging from tens of centimeters to several meters. Severe conductor galloping occurs when a single antinode vibrates within a large-span conductor. Combined with the swaying of the suspension insulator string along the line, the amplitude can reach or even slightly exceed the maximum sag value (approximately 10 to 12 meters).
[0003] The primary cause of conductor galloping is uneven ice coverage, which differs fundamentally from the breeze-induced vibrations of unglazed or evenly iced conductors. In winter in high-latitude regions, such as the northern United States, Canada, Japan, the Soviet Union, Nordic countries, China, and New Zealand, when temperatures range from 0°C to -10°C or lower, wind speeds range from 2 to 25 m / s or higher, and the angle between the wind direction and the line direction is between 45° and 90°, conductors with uneven ice coverage may gallop. Galloping caused by ice is a common natural disaster that poses a serious threat to the safe and stable operation of overhead conductors. Galloping typically exhibits coupled vibration characteristics in multiple degrees of freedom, including vertical, horizontal, and torsional vibrations. Existing anti-galloping devices have relatively simple functions. While suppressing galloping, most simply offer detuning or weighting functions, such as double-pendulum anti-galloping devices or weighted anti-galloping devices. Due to the strong nonlinear characteristics of galloping, these existing anti-galloping devices have significant limitations and are unable to monitor conductor galloping. Summary of the Invention
[0004] In order to overcome the shortcomings of the above-mentioned prior art in that anti-dancing is limited and monitoring cannot be achieved, the present invention provides a trigger-type anti-dancing device, a wire dancing monitoring device and a method. The trigger-type anti-dancing device comprises a pendulum housing (6), a trigger-type sensor (5) arranged in the pendulum housing (6), a first spring (7) and a second spring (8); the trigger-type sensor (5) is connected to the inner wall of the pendulum housing (6) through the first spring (7) and the second spring (8), respectively. The trigger-type sensor (5) is used to collect position coding information of the wire, has detuning, weight-pressing and energy-consuming functions, has small anti-dancing effect limitations, good anti-dancing effect, and can achieve wire dancing monitoring.
[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:
[0006] The present invention provides a trigger-type anti-dancing device, comprising a pendulum housing (6), a trigger-type sensor (5) arranged in the pendulum housing (6), a first spring (7) and a second spring (8); the trigger-type sensor (5) is connected to the inner wall of the pendulum housing (6) via the first spring (7) and the second spring (8), respectively, and the trigger-type sensor (5) is used to collect position coding information of a conductor.
[0007] The trigger sensor (5) comprises a signal generating module and touch switches respectively arranged in at least two directions of the signal generating module; when the wire dances, the touch switches in the opposite directions are triggered.
[0008] The signal generating module comprises:
[0009] A storage unit, used for storing position coding information of the conductor;
[0010] A sending unit, configured to send the position coding information to a relay system;
[0011] The power supply unit is used to supply power to the storage unit and the sending unit.
[0012] The trigger sensor (5) and the first spring (7), the first spring (7) and the protective shell (6), the trigger sensor (5) and the second spring (8), and the second spring (8) and the protective shell (6) are all connected in the form of welding or hanging rings.
[0013] The length and stiffness of the first spring (7) and the second spring (8) are equal.
[0014] The linear stiffness of the trigger-type anti-dance device is determined based on the preload and length of the first spring (7) / second spring (8), and the cubic stiffness thereof is determined based on the preload, length and stiffness of the first spring (7) / second spring (8).
[0015] The linear stiffness of the trigger-type anti-dance device is determined by the following formula:
[0016]
[0017] Wherein, k1 is the linear stiffness of the trigger-type anti-dance device, f is the preload force of the first spring (7) / the second spring (8), and l is the length of the first spring (7) / the second spring (8).
[0018] The cubic stiffness of the trigger-type anti-dance device is determined by the following formula:
[0019]
[0020] Wherein, k3 is the cubic stiffness of the trigger-type anti-dance device, and k is the stiffness of the first spring (7) / the second spring (8).
[0021] The first spring (7) and the second spring (8) are both cylindrical springs or conical springs.
[0022] The protective shell (6) is cylindrical, with a thickness of 5 to 10 mm and an inner diameter of 5 to 20 cm.
[0023] Also includes a connecting rod (2) and a spacer rod (1);
[0024] The pendulum housing (6) is suspended directly below the spacer rod (1) via a connecting rod (2);
[0025] The protective shell (6) and the connecting rod (2) are both made of aluminum alloy or carbon steel;
[0026] The connecting rod (2) and the pendulum housing (6) are fixed by welding, and the connecting rod (2) and the spacer rod (1) are fixed by bolts;
[0027] The length of the connecting rod (2) is determined according to the splitting radius of the spacer rod (1);
[0028] The spacer bar (1) is a binary spacer bar, a triple spacer bar, a quadruple spacer bar, a sextuple spacer bar or an octuple spacer bar.
[0029] In another aspect, the present invention further provides a wire galloping monitoring device, comprising:
[0030] A plurality of said trigger-type anti-dance devices are installed on the conductors and are used to send the collected position coding information to the relay system;
[0031] A relay system, installed on a tower, is used to generate a data packet based on the received location code information and send the data packet to a remote server;
[0032] The remote server is used to process the monitoring data in the data packet and determine whether to alarm based on the processing situation.
[0033] The relay system comprises:
[0034] A receiving unit, configured to receive position coding information sent by a plurality of trigger-type anti-dance devices;
[0035] a determining unit, configured to determine a dancing frequency and a dancing form of the conductor based on a time interval of each position coding information;
[0036] A generating unit, configured to generate a data packet based on a dancing frequency and a dancing morphology;
[0037] The communication unit is used to send data packets to a remote server wirelessly.
[0038] In another aspect, the present invention further provides a method for monitoring conductor galloping, comprising:
[0039] Multiple trigger-type anti-dance devices collect position coding information at different positions;
[0040] The relay system generates data packets based on the coding information of each position;
[0041] The remote server processes the monitoring data in the data packet and determines whether to issue an alarm based on the processing results.
[0042] Compared with the closest existing technology, the technical solution provided by the present invention has the following beneficial effects:
[0043] The trigger-type anti-dancing device provided by the present invention comprises a pendulum housing (6), a trigger-type sensor (5) arranged in the pendulum housing (6), a first spring (7) and a second spring (8); the trigger-type sensor (5) is connected to the inner wall of the pendulum housing (6) through the first spring (7) and the second spring (8), respectively; the trigger-type sensor (5) is used to collect position coding information of the conductor, has detuning, weight-pressing and energy-consuming functions, has a small anti-dancing effect limitation, a good anti-dancing effect, and can realize conductor dancing monitoring;
[0044] The present invention determines the linear stiffness and cubic stiffness of the trigger-type anti-dance device based on the nonlinear energy slot theory, so that the anti-dance device has the functions of detuning, weight suppression and wide-band energy consumption.
[0045] The trigger sensor of the present invention can not only generate up and down movement, but also can generate movement in three directions: horizontally and perpendicular to the paper surface, as well as movement in other directions generated by the sum of orthogonal vectors of each axis, so that the anti-dancing device has a multi-directional anti-dancing function;
[0046] The contact-type anti-dancing device provided by the present invention can change the distribution quality of the conductor, promote the distribution characteristics of the conductor along the length of the line, so that the wind speed of each part of the conductor is different, effectively changing the dancing characteristics of the conductor length, and avoiding the easy occurrence of dancing in low wind speed and thin ice cover;
[0047] The contact-type anti-dancing device provided by the present invention can change key parameters in a multi-split conductor system, causing the vertical natural frequency and the torsional natural frequency of the conductor to move away from each other, thereby preventing the flow of energy between the various degrees of freedom, and thus effectively preventing the occurrence of conductor galloping or other multi-degree-of-freedom coupled forms of galloping.
[0048] The contact anti-dancing device provided by the present invention can produce a relatively large amplitude response condition within the range of 0 to 100 Hz for dancing of different frequencies on different lines, different conductors, and under different ice coverage. The damping effect of the spring in the pendulum continuously absorbs and consumes vibration energy in multiple directions and a wide frequency range, thus having an energy consumption suppression effect and preventing damage caused by excessive vibration energy of the main oscillator, thereby effectively protecting the conductors and attached hardware.
[0049] The wire galloping monitoring device provided by the present invention can realize real-time monitoring of three degrees of freedom: vertical and horizontal displacement directions and torsion angle;
[0050] The wire galloping monitoring device provided by the present invention has high reliability under harsh conditions. At the same time, since it is in a dormant state under normal conditions and is powered on only when triggered, and does not require a signal processing process, only fixed position coding information needs to be transmitted, and power consumption is extremely low.
[0051] The wire galloping monitoring device provided by the present invention realizes the monitoring of wire galloping through the interaction of multiple trigger-type anti-galloping devices and a relay system, thereby providing a basis for disaster prevention and reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0052] Figure 1 This is a structural diagram of a trigger-type anti-dancing device according to an embodiment of the present invention;
[0053] Figure 2 This is a diagram of the pendulum structure in an embodiment of the present invention;
[0054] Figure 3 This is a schematic diagram of a touch switch in an embodiment of the present invention;
[0055] Figure 4 This is a diagram showing the principle of geometric nonlinearity in an embodiment of the present invention;
[0056] Figure 5 1 is an amplitude-frequency response curve diagram of a trigger-type anti-dance device according to an embodiment of the present invention;
[0057] Figure 6 This is a flow chart of a method for monitoring conductor galloping according to an embodiment of the present invention;
[0058] Figure 7 This is a schematic diagram of the switch operation with only up and down touches in the embodiment of the present invention;
[0059] Figure 8 This is a schematic diagram of the operation of only left and right touch switches in an embodiment of the present invention;
[0060] Figure 9 This is a schematic diagram of the operation of the up, down, left, and right touch switches in an embodiment of the present invention;
[0061] In the figure, 1. spacer bar, 2. connecting rod, 3. pendulum, 4. wire clamp, 5. trigger sensor, 6. pendulum housing, 7. first spring, 8. second spring. DETAILED DESCRIPTION
[0062] The present invention will be further described in detail below with reference to the accompanying drawings.
[0063] Example 1
[0064] Embodiment 1 of the present invention provides a triggerable anti-dancing device, which is fixed on the wire through a wire clamp 4. Figure 1 , including a pendulum housing 6, a trigger sensor 5 arranged in the pendulum housing 6, a first spring 7 and a second spring 8;
[0065] The pendulum housing 6, the trigger sensor 5, the first spring 7 and the second spring 8 constitute the pendulum 3. Figure 2 As shown, the pendulum housing 6 in the pendulum 3 is suspended directly below the spacer bar 1 through the connecting rod 2;
[0066] The trigger sensor 5 is connected to the inner wall of the pendulum housing 6 via the first spring 7 and the second spring 8 respectively. The trigger sensor 5 is used to collect position coding information of the wire.
[0067] The trigger sensor 5 includes a signal generating module and touch switches respectively arranged in at least two directions of the signal generating module; when the wire dances, the touch switches in the corresponding directions are triggered.
[0068] The trigger sensor 5 and the first spring 7 , the first spring 7 and the pendulum housing 6 , the trigger sensor 5 and the second spring 8 , and the second spring 8 and the pendulum housing 6 are all connected by welding or hanging rings.
[0069] The first spring 7 and the second spring 8 are both cylindrical springs or conical springs.
[0070] The pendulum housing 6 is cylindrical, with a thickness of 5 to 10 mm and an inner diameter of 5 to 20 cm.
[0071] The pendulum housing 6 and the connecting rod 2 are made of aluminum alloy or carbon steel;
[0072] The connecting rod 2 and the pendulum housing 6 are fixed by welding, and the connecting rod 2 and the spacer bar 1 are fixed by bolts;
[0073] The length of the connecting rod 2 is determined according to the splitting radius of the spacer rod 1.
[0074] The spacer 1 can be a two-split spacer, a three-split spacer, a four-split spacer, a six-split spacer or an eight-split spacer. In the embodiment 1 of the present invention, a six-split spacer is used, and the six-split spacer is fixed on the conductor by six wire clamps (4).
[0075] The connecting rod 2 and the pendulum housing 6 are fixed by welding, and the connecting rod 2 and the spacer bar 1 are fixed by bolts. The length and stiffness of the first spring 7 and the second spring 8 are equal.
[0076] The trigger sensor 5 includes a signal generating module and touch switches respectively arranged in at least two directions of the signal generating module; when the wire dances, the touch switches in the corresponding directions are triggered.
[0077] The signal generation module includes:
[0078] A storage unit, used for storing position coding information of the conductor;
[0079] A sending unit, configured to send the position coding information to a relay system;
[0080] The power supply unit is used to supply power to the storage unit and the sending unit.
[0081] The location coding information includes the trigger sensor number, tower number and conductor name abbreviation, such as: BB2#035-05, where BB2 is the conductor name abbreviation, #035 is the tower number, and -05 is the trigger sensor number.
[0082] When the wire is not dancing, the multiple touch switches in the trigger sensor 5 are all in a separated state;
[0083] When any of the touch switches changes from a separated state to a closed state, it indicates that the wire is dancing. In the dancing state, as time changes, the longitudinal displacement of the entire trigger sensor shows several cycles of vibration. The embodiment of the present invention uses a trigger sensor with four touch switches. The corresponding touch switch in the trigger sensor 5 changes from a separated state to a closed state due to the collision. The schematic diagram of the upper and lower touch switches is shown as follows. Figure 7 As shown, the touch switch will have a cycle of "upper and lower parts separated → upper part closed and lower part separated → upper and lower parts separated → upper part separated and lower part closed → upper and lower parts separated". The action diagram of the left and right touch switch is as shown. Figure 8 As shown, a light touch switch will produce a cycle of "left and right separated → left closed and right separated → left and right separated → left separated and right closed → left and right separated". The schematic diagram of the upper, lower, left and right light touch switches is as follows: Figure 9As shown, the touch switch will experience a cyclic process of "up, down, left and right are all separated → up closed and down separated, and left closed and right separated → up, down, left and right are all separated → up separated and down closed, and left separated and right closed → up, down, left and right are all separated". Each time the touch switch is closed, the signal generating module works and broadcasts the corresponding position coding information to the outside. The relay system located on the pole tower is responsible for receiving the position coding information. The relay system also determines the dancing shape and dancing frequency of the conductor based on the time interval between obtaining adjacent position coding information.
[0084] The Nonlinear Energy Sink (NES) theory is a novel vibration absorber technology developed based on dynamic vibration absorbers. By modifying the linear stiffness and damping of traditional vibration absorption systems (e.g., introducing a nonlinear spring into a traditional damped spring oscillator system), it aims to broaden the vibration absorption frequency range and improve the vibration reduction effect. The optimized nonlinear vibration absorber can absorb the vibration energy of the main structure over a wide frequency range, while also offering low added mass, strong adaptability, and excellent economic efficiency.
[0085] The first embodiment of the present invention determines the linear stiffness and cubic stiffness of the trigger-type anti-dance device based on NES. The advantage of geometric nonlinearity is that the nonlinear characteristics can be realized by using linear springs. The specific geometric nonlinear principle diagram is as follows: Figure 3 As shown, Figure 3 Where, f is the preload force of the first spring 7 / second spring 8, l is the length of the first spring 7 / second spring 8, F is the resultant external force of the pendulum housing 6, Δs is the displacement of the trigger sensor 5, and Δl is the axial extension of the first spring 7 / second spring 8. Figure 4 The relationship expressed is as follows:
[0086]
[0087] In the above formula, the left side of the equal sign is the force vector triangle, and the right side is the deformation triangle.
[0088] The corresponding geometric relationship is:
[0089] l 2 +Δs 2 =(l+Δl) 2
[0090] Joint and l 2 +Δs 2 =(l+Δl) 2 , eliminating Δl, we get:
[0091]
[0092] Will Do Taylor expansion near the origin Δs = 0, retaining the first cubic terms, and we have:
[0093]
[0094] Therefore, it can be seen that the linear stiffness of the triggered anti-dance device is determined based on the preload force and length of the first spring 7 / second spring 8, and its cubic stiffness is determined based on the preload force, length and stiffness of the first spring 7 / second spring 8.
[0095] The linear stiffness of the triggered anti-dance device is determined by the following formula:
[0096]
[0097] Wherein, k1 is the linear stiffness of the triggering anti-dance device, f is the preload force of the first spring 7 / the second spring 8, and l is the length of the first spring 7 / the second spring 8.
[0098] The cubic stiffness of the triggered anti-dance device is determined by the following formula:
[0099]
[0100] Wherein, k3 is the cubic stiffness of the trigger anti-dance device, and k is the stiffness of the first spring 7 / the second spring 8.
[0101] The trigger-type anti-dance device provided in the embodiment of the present invention not only has the most basic anti-dance function, but also has detuning, weight pressure, energy consumption and monitoring functions, as follows:
[0102] (1) Weight function
[0103] Changing the distribution quality of the conductors promotes the distribution characteristics of the conductors along the length of the line, so that the wind speeds at different parts of the conductors are different, effectively changing the dancing characteristics of the conductor length and avoiding the easy occurrence of dancing at low wind speeds and thin ice cover.
[0104] (2) Detuning function
[0105] Changing the key parameters in the multi-split conductor system (such as increasing the ice wind threshold of dancing by changing the torsional stiffness and rotational inertia of the conductor) will cause the vertical natural frequency and the torsional natural frequency of the conductor to move away from each other, thereby preventing the energy flow between the various degrees of freedom, thereby effectively avoiding conductor dancing or the occurrence of other multi-degree-of-freedom coupling forms of dancing.
[0106] (3) Energy consumption function
[0107] According to mechanical vibration theory, the forced vibration equation of the vibration structure of the shock absorber is: x(t) is the displacement of mass (5), i.e., Δs; is the acceleration of the mass block (5), Ω is the external excitation frequency, when the mass of the mass block (5) is m = 200 kg, the cubic stiffness of the trigger anti-dance device is k3 = 20 000 N / m 3 When the total external force F=3N triggering the anti-dance device, according to the results of nonlinear dynamic analysis, we can get Figure 5 The amplitude-frequency response curve is shown in the figure. Figure 5 It can be seen that the vibration absorber's response is non-zero at all frequencies. In the conductor-vibration absorber coupled system, these characteristics clearly facilitate the absorber's ability to continuously absorb and dissipate system vibration energy through the damping action of the spring. This suppresses energy consumption from ice dancing at various frequencies and allows for the continuous monitoring of conductor dancing.
[0108] (5) Monitoring function
[0109] The monitoring of the conductor dancing is achieved through the closing or opening of each touch switch in the trigger sensor 5 and the signal generating module.
[0110] Example 2
[0111] Embodiment 2 of the present invention provides a wire galloping monitoring device, comprising:
[0112] Multiple trigger-type anti-dancing devices are hung on the conductors between two adjacent towers to collect position coding information at different positions and send the collected position coding information to the relay system;
[0113] a relay system for generating a data packet based on the received position coding information and sending the data packet to a remote server;
[0114] The remote server is used to process the monitoring data in the data packet and determine whether to alarm according to the processing situation. When the dancing frequency of the wire is 5 to 100 Hz, the remote server sends an alarm message.
[0115] The relay system includes:
[0116] A receiving unit, configured to receive position coding information sent by a plurality of trigger-type anti-dance devices;
[0117] a determining unit, configured to determine a dancing frequency and a dancing form of the conductor based on a time interval of each position coding information;
[0118] A generating unit, configured to generate a data packet based on a dancing frequency and a dancing morphology;
[0119] The communication unit is used to send data packets to a remote server wirelessly.
[0120] Example 3
[0121] Embodiment 3 of the present invention provides a method for monitoring wire dancing, the flow chart of which is as follows: Figure 6 As shown, including:
[0122] S101: multiple trigger-type anti-dance devices collect position coding information at different positions;
[0123] S102: The relay system generates a data packet based on each position coding information;
[0124] S103: The remote server processes the monitoring data in the data packet and determines whether to issue an alarm based on the processing result.
[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Ordinary technicians in the relevant field can still modify or replace the specific implementation methods of the present invention with equivalents by referring to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection of the claims of the present invention to be approved.
Claims
1. A trigger-type anti-dance device, characterized in that: It comprises a pendulum housing (6), a trigger sensor (5) arranged in the pendulum housing (6), a first spring (7) and a second spring (8); The trigger sensor (5) is connected to the inner wall of the pendulum housing (6) via a first spring (7) and a second spring (8), respectively, and the trigger sensor (5) is used to collect position coding information of the conductor; The trigger sensor (5) comprises a signal generating module and touch switches respectively arranged in at least two directions of the signal generating module; when the wire dances, the touch switches in the corresponding directions are triggered; The trigger sensor (5) and the first spring (7), the first spring (7) and the pendulum housing (6), the trigger sensor (5) and the second spring (8), and the second spring (8) and the pendulum housing (6) are all connected by welding or hanging rings; The linear stiffness of the trigger-type anti-dance device is determined based on the preload force and length of the first spring (7) / the second spring (8), and the cubic stiffness thereof is determined based on the preload force, length and stiffness of the first spring (7) / the second spring (8); The linear stiffness of the trigger-type anti-dance device is determined by the following formula: Where, is the linear stiffness of the triggered anti-dance device, f is the preload force of the first spring (7) / second spring (8), l is the length of the first spring (7) / the second spring (8); The cubic stiffness of the trigger-type anti-dance device is determined by the following formula: Where, is the cubic stiffness of the triggered anti-dance device, k is the stiffness of the first spring (7) / the second spring (8).
2. The trigger-type anti-dance device according to claim 1, characterized in that: The signal generating module comprises: A storage unit, used for obtaining position coding information of the conductor; A sending unit, configured to send the position coding information to a relay system; The power supply unit is used to supply power to the storage unit and the sending unit.
3. The trigger-type anti-dance device according to claim 1, characterized in that: The length and stiffness of the first spring (7) and the second spring (8) are equal.
4. The trigger-type anti-dance device according to claim 1, characterized in that: The first spring (7) and the second spring (8) are both cylindrical springs or conical springs.
5. The trigger-type anti-dance device according to claim 1, characterized in that: The pendulum housing (6) is cylindrical, with a thickness of 5 to 10 mm and an inner diameter of 5 to 20 cm.
6. The trigger-type anti-dance device according to claim 1, characterized in that: Also includes a connecting rod (2) and a spacer rod (1); The pendulum housing (6) is suspended directly below the spacer rod (1) via the connecting rod (2); The pendulum housing (6) and the connecting rod (2) are both made of aluminum alloy or carbon steel; The connecting rod (2) and the pendulum housing (6) are fixed by welding, and the connecting rod (2) and the spacer rod (1) are fixed by bolts; The length of the connecting rod (2) is determined according to the splitting radius of the spacer rod (1); The spacer bar (1) is a binary spacer bar, a triple spacer bar, a quadruple spacer bar, a sextuple spacer bar or an octuplet spacer bar.
7. A wire galloping monitoring system, characterized in that: include: A plurality of trigger-type anti-dancing devices as described in any one of claims 1 to 6, mounted on a wire, for transmitting position coding information collected by a trigger-type sensor (5) to a relay system; A relay system, installed on a tower, is used to generate a data packet based on the received position code information and send the data packet to a remote server; The remote server is used to process the monitoring data in the data packet and determine whether to alarm based on the processing situation.
8. The wire galloping monitoring system according to claim 7, characterized in that: The relay system comprises: A receiving unit, configured to receive position coding information sent by a plurality of trigger-type anti-dance devices; a determining unit, configured to determine a dancing frequency and a dancing form of the conductor based on a time interval of each position coding information; A generating unit, configured to generate a data packet based on a dancing frequency and a dancing morphology; The communication unit is used to send data packets to a remote server wirelessly.
9. A method for monitoring conductor galloping, characterized in that: include: A plurality of trigger-type anti-dance devices according to any one of claims 1 to 6 collect position coding information at different positions; The relay system generates data packets based on the coding information of each position; The remote server processes the monitoring data in the data packet and determines whether to issue an alarm based on the processing results.
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