A smart dynamic warning aviation obstacle ball

Abstract

This invention belongs to the field of aviation obstacle course technology and provides an intelligent dynamic warning aviation obstacle course. The invention includes: a fixing component for clamping and fixing to a power transmission cable; a sphere movably connected to the fixing component, the sphere being divided into a fixed part and a swinging part by at least one flexible connecting strip, the fixed part being fixedly connected to the fixing component, and the swinging part being connected to the fixed part via the flexible connecting strip, allowing the swinging part to move relative to the fixed part; a guiding constraint mechanism including a mutually adapted guide shaft and a guide sleeve, the guide shaft being fixed to the fixing component along a constraint direction perpendicular to the axis of the power transmission cable; the guide sleeve being opened within the swinging part along the constraint direction and slidably fitted onto the guide shaft; the cooperation between the guide shaft and the guide sleeve only allows the swinging part to slide back and forth linearly along the constraint direction and prevents the swinging part from rotating around the guide shaft; and a warning component disposed on the outer surface of the sphere to enhance visual visibility.

Description

Technical Field

[0001] This invention relates to the field of aviation obstacle ball technology, and specifically to an intelligent dynamic warning aviation obstacle ball. Background Technology

[0002] To prevent drones and other aircraft from colliding with overhead power transmission lines, it is often necessary to install aviation obstacle balls at intervals on the cables to enhance the visual visibility of the lines.

[0003] The existing solutions for aviation obstacle avoidance balls mostly use static fixed balls, which are completely fixed to the cable. Due to their long-term static state, the long-distance dynamic visual warning effect is weak. Moreover, under the interference of the horizon, mountain outline, or light, the single static color block is very easy to blend into the background, producing a "visual fusion" phenomenon, which leads to the pilot or obstacle avoidance system missing the detection.

[0004] In view of this, we propose a novel "rigid-flexible coupling" improvement scheme: the traditional integral spherical structure is reconstructed into a "rigid fixed part" and a "flexible swaying part" to achieve a dynamic warning effect and avoid visual fusion. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an intelligent dynamic warning aviation obstacle ball to avoid visual fusion and achieve a dynamic warning effect.

[0006] This invention provides an intelligent dynamic warning aviation obstacle ball, comprising: a fixing component for clamping and fixing to a power transmission cable; a ball movably connected to the fixing component, the ball being divided into a fixed portion and a swinging portion by at least one flexible connecting strip, the fixed portion being fixedly connected to the fixing component, and the swinging portion being connected to the fixed portion via the flexible connecting strip, allowing the swinging portion to move relative to the fixed portion; a guiding constraint mechanism including a mutually adapted guide shaft and a guide sleeve, the guide shaft being fixed to the fixing component along a constraint direction perpendicular to the axis of the power transmission cable; the guide sleeve being opened within the swinging portion along the constraint direction and slidably sleeved on the guide shaft; the mating cross section of the guide shaft and the guide sleeve being configured to allow only the swinging portion to reciprocate linearly along the constraint direction and prevent the swinging portion from rotating around the guide shaft; and a warning component disposed on the outer surface of the ball for enhancing visual visibility.

[0007] Furthermore, the guide shaft is a shaft with a non-circular cross-section, and the guide sleeve has a non-circular inner hole that matches the cross-sectional shape of the guide shaft. In practical applications, the guide constraint mechanism in this design has at least two locations, arranged relatively parallel to each other; this further constrains the up-and-down swaying of the swinging part, preventing visual blending.

[0008] Furthermore, a sealing assembly is provided between at least one end of the guide sleeve and the guide shaft. The sealing assembly has a flexible dust cover to isolate external dust and rain. In practical applications, this design can effectively improve the service life of the overall device and prevent failure.

[0009] Furthermore, it also includes a fall arrest safety rope, one end of which is connected to the fixed part and the other end to the swinging part; the fall arrest safety rope is a flexible steel wire rope, and its length margin is greater than the maximum sliding stroke of the swinging part along the constraint direction. In actual design, the fall arrest safety rope of this design also adopts a redundant safety design, using two ropes for installation and connection; in this way, the safety performance can be further improved, avoiding accidents.

[0010] Furthermore, the swinging part is internally equipped with a damping mechanism, which includes a damping cavity filled with silicone oil and a counterweight disposed within the damping cavity to dissipate wind-induced vibration energy. In practical applications, this design reduces vibration by moving the counterweight and impacting the silicone oil in the damping cavity. This design primarily reduces internal vibration, thus extending the overall service life. Moreover, the viscous damping of the silicone oil dissipates wind-induced vibration energy, suppresses resonance amplification, and extends service life. In this way, resonance can be avoided when multiple aviation obstacle balls are used together, further improving overall safety.

[0011] Furthermore, the flexible connecting strip is a ring-shaped weather-resistant rubber strip, with its inner periphery connected to the fixed part and its outer periphery connected to the swinging part, thereby sealing the gap between the fixed part and the swinging part. In actual design, the purpose of this design is to maintain the connection effect after segmentation, utilizing its flexible characteristics to ensure its up-and-down swaying effect.

[0012] Furthermore, the fixing component includes a U-shaped clamp and a base fixed to the U-shaped clamp, the base clamping the power transmission cable. In practical applications, this design is simple, efficient, and provides a secure fixation.

[0013] Furthermore, an elastic reset member is provided between the guide shaft and the guide sleeve. The elastic reset member is configured such that when the swinging part slides along the constraint direction, the elastic reset member accumulates elastic potential energy and releases elastic potential energy when the external force changes, so as to drive the swinging part to reciprocate along the constraint direction.

[0014] Furthermore, the warning component includes a high-visibility coating applied to the outer surface of the sphere and multiple reflective strips disposed on the outer surface of the sphere. In practical applications, the high-visibility coating is either a fluorescent coating or a retroreflective coating. The fluorescent coating absorbs ultraviolet rays from sunlight during the day and emits visible light, making the sphere highly visible in sunlight; the retroreflective coating reflects incident light back along its original path at night or under low light conditions, ensuring the sphere's visibility at night; and the multiple reflective strips are distributed at intervals along the circumference and / or meridional direction of the sphere. The reflective strips can be made of microprism-type reflective film, which has high reflectivity and good weather resistance. Combined with the swaying motion of the sphere, the angle of the reflective strips changes continuously during the swaying process, producing a flashing reflective effect and enhancing the dynamic warning capability.

[0015] Furthermore, the warning component includes at least one active light-emitting module located at the sphere. The active light-emitting module includes LED beads, a solar panel, and an energy storage element. The solar panel charges the energy storage element, and the energy storage element powers the LED beads. In practical applications, through solar self-powering, the active light-emitting module can achieve all-weather active light-emitting warning without an external power source. Especially in low-light environments such as nighttime or cloudy days, the high-brightness light emitted by the LED beads can be effectively identified by drones from a distance. Moreover, the active light-emitting module is located on the outer surface of the swinging part, allowing it to reciprocate along the constrained direction with the swinging part. When the swinging part swings up and down under wind force, the light emission direction of the LED beads changes periodically, forming a moving light source signal. Compared to a fixed light source, a moving light source is more attractive to the human eye and the drone's visual sensors, resulting in a more significant warning effect.

[0016] As can be seen from the above technical solution, the beneficial effects of the intelligent dynamic warning aviation obstacle ball provided by the present invention are as follows: (1) In practical application, this application retains the stability of the core connection structure, while introducing a dynamic visual mechanism: so that the sphere is no longer a rigid whole, but becomes a counterweight swaying structure.

[0017] (2) And by utilizing the unique “micro-wind vibration” of overhead cables or natural wind, the sphere is driven to produce non-periodic up-and-down floating and swaying.

[0018] (3) Visual activation is achieved. This continuous micro-dynamics breaks the camouflage of the static background and significantly improves the visual salience at a distance, enabling the drone to perceive the spatial existence of the cable in advance, just like recognizing a "living thing".

[0019] (4) Moreover, in this design, there is high reliability redundancy, and the fall protection safety rope provides protection independently of the motion mechanism. Even if the guide structure fails completely, there will be no falling objects, which meets the rigid safety requirements of the power grid high-altitude equipment.

[0020] (5) At the same time, it can also achieve all-weather warning capability: the warning component combines passive reflection and active light emission to ensure that the sphere maintains excellent observability under various lighting conditions such as daytime, nighttime, and rain.

[0021] (6) Finally, the device is highly adaptable to the environment and requires no maintenance: the sealed design combined with weather-resistant materials can isolate external dust and rain. In addition, the damping structure and the solar self-powered system significantly reduce the maintenance requirements. Moreover, the simultaneous use of multiple devices further avoids resonance. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the front view structure of an intelligent dynamic warning aviation obstacle ball according to an embodiment of the present invention; Figure 2 for Figure 1 The image shown is a top view of an intelligent dynamic warning aviation obstacle ball. Figure 3 for Figure 1 The cross-sectional view of AA shown; Figure 4 for Figure 1 The enlarged structural diagram at point B is shown below; Figure 5 A schematic diagram of the structure of an enhanced intelligent dynamic warning aviation obstacle ball provided in another embodiment of the present invention; Figure 6 This is a schematic diagram of the traditional aviation obstacle ball disassembly structure; Figure label: 1. Power transmission cable; 2. Fixing component; 3. Sphere; 4. Guiding restraint mechanism; 5. Sealing component; 6. Fall protection safety rope; 7. Damping mechanism; 8. Spring; 9. Warning component; 21. U-shaped clamp; 22. Base; 31. Fixing part; 32. Swinging part; 33. Flexible connecting strip; 41. Guide shaft; 42. Guide sleeve; 71. Damping cavity; 72. Counterweight; 91. High visibility coating; 92. Reflective strip; 93. Active light-emitting module; 93. LED beads; 931. Solar panel; 932. Energy storage element; 933. Photosensitive sensor; 934. First warning sign; 94a. Second warning sign; 94b. Detailed Implementation

[0024] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0025] The basic implementation examples are as follows: Figures 1 to 6 As shown: Example 1: Please refer to the following: Figures 1 to 6 This invention provides an intelligent dynamic warning aviation obstacle ball, which is installed on an overhead power transmission cable 1. It aims to break through the camouflage of a static background through a dynamic visual mechanism, avoid the occurrence of visual fusion, and enable aircraft such as drones to detect the existence of cable space in advance, thereby achieving efficient dynamic warning.

[0026] This embodiment provides an intelligent dynamic warning aviation obstacle ball, mainly comprising a fixing component 2, a ball 3, a guiding constraint mechanism 4, and a warning component 9. The fixing component 2 clamps and fixes the ball to the power transmission cable 1, providing a stable mounting base for the entire device. The ball 3 is movably connected to the fixing component 2 and is divided into a fixed portion 31 and a swinging portion 32 by at least one flexible connecting strip 33, making the ball no longer a rigid whole but a counterweight swaying structure with movable parts. The guiding constraint mechanism 4 limits the degree of freedom of the swinging portion 32, allowing it to only reciprocate in a specific direction and preventing entanglement rotation. The warning component 9 is located on the outer surface of the ball 3 to enhance visual visibility, achieving an all-weather, highly noticeable warning effect in conjunction with the dynamic movement of the swinging portion 32.

[0027] Fixed component 2 The fixing component 2 is used to reliably fix the entire aviation obstacle ball to the power transmission cable 1. In this embodiment, the fixing component 2 includes a U-shaped clamp 21 and a base 22 fixed to the U-shaped clamp 21. The inner surface of the base 22 can be provided with an anti-slip pad to enhance the clamping friction. By tightening the nut on the U-shaped clamp 21, the base 22 is firmly clamped to the power transmission cable 1. This structure is simple, efficient in construction, and can adapt to cables of different diameters, thus having wide applicability. As an alternative fixing method, the fixing component 2 can also use a clamp with bolt locking, a wedge clamping mechanism, or a pre-twisted wire clamp, as long as a stable connection with the power transmission cable can be achieved. However, the U-shaped clamp with the base is preferred because it facilitates manual installation and disassembly maintenance while meeting the clamping force requirements.

[0028] Sphere 3 and flexible connecting strip 33 The sphere 3 is roughly spherical in shape, but it is not a completely rigid whole. Instead, it is divided into a fixed part 31 and a swinging part 32 by at least one flexible connecting strip 33. In this embodiment, a ring-shaped flexible connecting strip 33 is provided at the upper part of the center of the sphere 3, thereby dividing the sphere 3 into the upper fixed part 31 and the lower swinging part 32. The inner wall of the fixed part 31 is fixedly connected to the base 22 of the fixing component 2 by welding or bolts, so that the fixed part 31 remains stationary relative to the power transmission cable 1. The swinging part 32 is connected to the fixed part 31 only through the flexible connecting strip 33. With the elastic deformation capability of the flexible connecting strip 33, the swinging part 32 can move freely relative to the fixed part 31 within a certain range. This "fixed, flexible connection, and movable" division method retains the stability of the core connection structure while introducing a dynamic visual mechanism.

[0029] The flexible connecting strip 33 is an annular weather-resistant rubber strip made of weather-resistant materials such as neoprene rubber, silicone rubber, or EPDM rubber. Its inner periphery is sealed and fixed to the opening edge of the fixed part 31, and its outer periphery is sealed and fixed to the opening edge of the swinging part 32, thus providing a flexible connection while completely sealing the annular gap between them. This design ensures that the swinging part 32 can swing smoothly in the vertical direction, while also achieving the integrity of the sphere 3's appearance and internal sealing, providing dustproof, rainproof, and aesthetic functions. As an alternative, the flexible connecting strip 33 can also adopt a segmented elastic connector or a spring-corrugated tube combination structure, but the annular rubber strip has significant advantages in providing uniform elastic support, sealing the gap, and simplifying assembly, making it the preferred choice in this embodiment.

[0030] Guiding constraint mechanism 4 The guiding constraint mechanism 4 is the core of achieving "anti-entanglement" and "controlled swinging". It includes a guide shaft 41 and a guide sleeve 42 that are adapted to each other. The guide shaft 41 is fixed to the fixing component 2 along a constraint direction Z, which is perpendicular to the axis X of the power transmission cable 1. That is, in this embodiment, the constraint direction Z is a roughly vertical direction. The guide sleeve 42 is opened in the swinging part 32 along the constraint direction Z and is slidably sleeved on the guide shaft 41. The mating cross section of the guide shaft 41 and the guide sleeve 42 is constructed such that only the swinging part 32 is allowed to slide back and forth in a straight line along the constraint direction Z, while preventing the swinging part 32 from rotating around the guide shaft 41. This technical means physically deprives the swinging part 32 of the freedom of rotation around the cable axis, thereby eliminating the risk of cable entanglement caused by traditional rotating balls.

[0031] To achieve the above constraints, the guide shaft 41 is a shaft with a non-circular cross-section, and the guide sleeve 42 has a non-circular inner hole that matches the cross-sectional shape of the guide shaft. In a preferred embodiment of this invention, the guide shaft 41 is a stainless steel shaft with a square cross-section, and the guide sleeve 42 has a corresponding square inner hole. The square mating surface naturally restricts circumferential rotation while transmitting sliding guidance. As a functionally equivalent alternative, the guide shaft 41 can be a circular shaft with a keyway axially formed on its outer circumferential surface, and a matching flat key is provided on the inner wall of the guide sleeve 42 to form a key-keyway mating structure; or the guide shaft 41 can be a non-circular cross-section such as elliptical, D-shaped, or splined, and the guide sleeve 42 can be correspondingly designed. These alternatives can all achieve the same anti-rotation constraint, but the square cross-section is preferred due to its ease of processing, excellent centering, and torsional resistance.

[0032] Specifically, to further improve the smoothness of the swing motion and avoid tilting and jamming caused by gaps, the guide constraint mechanism 4 is provided at least two times, and is arranged in parallel relative to each other. In this embodiment, four guide shafts 41 are fixed inside the fixed part 31, and both guide shafts 41 extend vertically downward along the constraint direction Z; two corresponding parallel guide sleeves 42 are machined inside the swing part 32, and the two guide sleeves 42 are slidably sleeved on the two guide shafts 41 respectively. By using at least two parallel guide constraints, on the one hand, the swing part 32 can be more accurately limited to translation in the vertical direction, eliminating the degree of freedom of yaw, and avoiding the swing part from tilting during movement and colliding or jamming with the fixed part, thereby ensuring the continuous stability of the dynamic warning effect; on the other hand, this parallel dual-axis structure also significantly improves the overall rigidity and fatigue resistance of the mechanism. Of course, it can be extended that the number of guide constraint mechanisms is not limited to two, and three or more parallel guide shafts are also applicable, which are still within the protection scope of this invention.

[0033] Sealing component 5 To ensure the long-term reliable operation of the sliding pair between the guide shaft 41 and the guide sleeve 42 in harsh outdoor environments, it is necessary to prevent sand, rain, snow, etc., from entering the gap and causing jamming or wear. Therefore, a sealing assembly 5 is provided between at least one end of the guide sleeve 42 and the guide shaft 41. In this embodiment, the sealing assembly 5 is a flexible dust cover. Specifically, a corrugated flexible dust cover is fitted at the upper and lower openings of each guide sleeve 42; the dust cover is made of weather-resistant neoprene rubber or silicone rubber. One end is sealed to the inner wall of the guide sleeve 42, and the other end is tightly fitted to the outer circumference of the guide shaft 41, and can elastically expand and contract with the up-and-down sliding of the swinging part 32. The flexible dust cover can reliably isolate external dust and rain at all times, effectively improving the service life of the device and preventing the loss of dynamic warning function due to jamming. As an alternative, the sealing assembly 5 can also use a labyrinth seal ring, or a combination of a flexible dust cover and a labyrinth seal. Labyrinth seals achieve non-contact dustproofing through multi-stage tortuous gaps, resulting in lower frictional resistance. However, their sealing effect may be less effective than flexible dust covers in water immersion or frosty environments. Therefore, this embodiment preferably uses a flexible dust cover, and in extreme environments, a labyrinth seal can be added to create multiple layers of protection.

[0034] Fall protection rope 6 To meet the rigid safety requirements of the power grid for "fall prevention" of high-altitude equipment, this device incorporates a redundant fall prevention design independent of the guiding constraint mechanism. The swinging part 32 is connected for secondary protection via an independent fall prevention safety rope 6. The fall prevention safety rope 6 is a flexible steel wire rope, with its two ends connected to the fixed part 31 and the swinging part 32, respectively. The natural length margin of the fall prevention safety rope 6 is greater than the maximum sliding stroke of the swinging part 32 along the constraint direction Z, ensuring that the fall prevention safety rope 6 is in a relaxed and unstressed state during normal operation, without hindering the swinging motion. If the guiding constraint mechanism 4 breaks or detaches due to extreme circumstances, and the swinging part 32 is about to fall, the fall prevention safety rope 6 immediately tightens, supporting the entire weight of the swinging part 32 and firmly suspending it on the transmission cable 1, thereby preventing falling object accidents. In this embodiment, the fall prevention safety rope 6 adopts a redundant safety design, specifically consisting of two steel wire ropes, each independently connected. The two fall prevention safety ropes are symmetrically arranged, so even if one breaks unexpectedly, the other can still provide protection, further enhancing safety and reliability. As an alternative, high-strength fiber ropes or chains can also be used for fall arrest safety ropes, but steel wire ropes are preferred due to their superior overall performance in terms of tensile strength, weather resistance, and flexibility. It is understood that the number of fall arrest safety ropes can be set to one, two, or more depending on the safety level requirements, all of which fall within the scope of protection of this invention.

[0035] Damping mechanism 7 While utilizing the unique "micro-wind vibration" of overhead cables or natural wind to drive the spherical swing, it is also necessary to suppress excessive vibration and system resonance. To this end, a damping mechanism 7 is installed inside the swing section 32. The damping mechanism 7 includes a damping cavity 71 filled with silicone oil and a counterweight 72 movable within the damping cavity 71. The damping cavity 71 is a sealed cavity filled with high-viscosity silicone oil; the counterweight 72 is a metal block with a certain mass that can move relative to the silicone oil. When the wind drives the swing section 32 to move up and down, the counterweight 72, relying on inertia, generates hysteresis motion within the damping cavity 71, creating shear and impact on the silicone oil inside. The viscous damping effect of the silicone oil converts the mechanical energy of the wind-induced vibration into heat energy, which is then dissipated. This design primarily reduces the internal transmission of vibration energy, thereby suppressing excessive swing amplitude and resonance amplification, significantly extending the structural fatigue life. More importantly, when multiple intelligent dynamic warning aviation obstacle balls are installed on the same power transmission cable or adjacent cables, the balls are prone to vibration coupling and even system resonance due to wind-induced excitation. The damping mechanism 7 effectively absorbs vibration energy, disrupts resonance conditions, and prevents resonance from occurring, thus improving the overall safety and reliability of multiple devices working together. Alternatively, the damping mechanism can also use spring friction dampers, magnetorheological dampers, or other viscous damping structures, but the silicone oil counterweight solution is simple in structure, low in cost, and sensitive to minor vibrations, making it the preferred option in this embodiment. Further preferably, the appropriate viscosity of the silicone oil and the shape and mass of the counterweight are selected based on the weight of the swinging part and the expected wind speed range to tune the damping characteristics. Furthermore, this built-in silicone oil damping mechanism can also be applied to other suspension devices that require suppression of low-frequency swaying.

[0036] Warning component 9 The warning component 9 is located on the outer surface of the sphere 3 to enhance visual visibility and is a key component for achieving all-weather dynamic warnings. In this embodiment, the warning component 9 integrates both passive visual enhancement and active light emission to ensure excellent visibility under different lighting conditions.

[0037] The warning component 9 includes a highly visible coating 91 applied to the outer surface of the sphere 3. This highly visible coating 91 can be a fluorescent coating, a retroreflective coating, or a composite coating possessing both properties. In a preferred embodiment, a composite coating with both fluorescent and retroreflective functions is used: during the day, the fluorescent pigment absorbs ultraviolet light from sunlight and emits longer-wavelength visible light (such as orange-red), making the sphere highly conspicuous in sunlight and creating a strong contrast with the dark background of cables; at night or under low-light conditions, the retroreflective microbeads efficiently reflect incident searchlight or ambient light back along its original path, ensuring the sphere's visibility at night. Alternatively, a fluorescent coating or a retroreflective coating can be used alone for the highly visible coating, or other high-contrast colored coatings can be used, but a composite coating is preferred because it covers all time periods.

[0038] The warning component 9 also includes multiple reflective strips 92 disposed on the outer surface of the sphere 3. The multiple reflective strips 92 are distributed at intervals along the circumference and / or meridian of the sphere 3, forming an interwoven reflective array. The reflective strips 92 can be made of microprism-type reflective film, which has extremely high reflectivity and excellent weather resistance. During the swinging of the sphere 3, the angle of each reflective strip 92 relative to the incident light continuously changes, thereby producing an alternating bright and dark flashing reflective effect, further enhancing the dynamic warning capability. As an alternative, the reflective strips can also be made of glass microsphere-type reflective film, but its reflectivity is generally lower than that of the microprism type, so the microprism type reflective film is preferred. The color of the reflective strips can be selected from eye-catching colors such as silver-white and yellow, and different widths and spacings can be set as needed.

[0039] The warning component 9 also includes at least one active light-emitting module 93. The active light-emitting module 93 is located at the sphere 3, specifically at the bottom of the outer surface of the swinging part 32 in this embodiment, to maximize its exposure to the airborne field of view and to move with the swinging part. The active light-emitting module 93 includes LED beads 931, a solar panel 932, and an energy storage element 933. The solar panel 932 receives sunlight during the day and converts light energy into electrical energy to charge the energy storage element 933 (such as a rechargeable lithium battery or supercapacitor); the energy storage element 933 provides operating power to the LED beads 931. Through solar self-powering, the active light-emitting module can achieve all-weather active light-emitting warning without an external power source. Especially at night or in low-light environments such as rainy days, the LED beads 931 emit high-brightness light, enabling effective identification by drones from a distance. More importantly, because the active light-emitting module 93 is mounted on the swinging part 32, it reciprocates along the constraint direction Z with the swinging part 32, causing the light emission direction of the LED beads 931 to change periodically, forming a moving light source signal. Compared to fixed light sources, this mobile light source is more attractive to the human eye and drone vision sensors, significantly improving the warning effect. As a further preferred option, the active light-emitting module 93 also includes a photosensor 934 and a control circuit. The photosensor 934 is used to detect ambient light intensity in real time, and the control circuit receives the light intensity signal and performs logical judgments: when the ambient light is sufficient, it automatically disconnects the power supply to the LED beads 931, turning them off to save energy; when the ambient light is below a preset threshold, it automatically connects the power supply and controls the LED beads to flash at a certain frequency (e.g., 2Hz), achieving the most effective active light warning with minimal energy consumption. Alternatively, the active light-emitting module 93 can also use timed control instead of a photosensor, but photosensor control is more intelligent and energy-efficient. Furthermore, this self-powered follow-up light-emitting module can also be independently applied to other traffic facilities, aviation signs, or high-altitude obstacle indicators that require dynamic warnings.

[0040] Furthermore, to enhance the dynamic visual contrast effect and further prevent visual fusion, the outer surface of the fixed part 31 is coated with a first warning sign 94a, and the outer surface of the swinging part 32 is coated with a second warning sign 94b. The first warning sign 94a and the second warning sign 94b have different colors and / or patterns. For example, in this embodiment, a large red and white color block pattern is used to form a clear color boundary at the boundary of the flexible connecting strip 33. When the swinging part 32 moves up and down, the relative position between the first warning sign 94a and the second warning sign 94b changes continuously, producing a dynamic visual pattern of alternating expansion and contraction of red and white areas, bringing a strong visual contrast and motion cues, effectively breaking the camouflage of a static background, and enabling the drone to perceive the spatial presence of the cable in advance as if it were a "living object". It can be understood that the color combination of the warning signs is not limited to red and white, but can also be a combination of strong contrasting colors such as orange and white, yellow and black, or red and yellow. Reflective paint can also be used for printing to enhance the nighttime effect.

[0041] Example 2 Please see Figure 5 Embodiment 2 of the present invention provides another enhanced intelligent dynamic warning aviation obstacle ball. The main difference between this embodiment and Embodiment 1 is that an elastic reset member is added to the outside of the guide constraint mechanism 4 to drive the swing part 32 to move up and down reciprocally along the constraint direction Z.

[0042] In Embodiment 1, the sliding of the swinging part 32 along the guide shaft 41 relies entirely on external wind power. Under the influence of gravity, it naturally droops to the lowest point of its stroke, and the swing amplitude is limited when the wind force is small. In this embodiment, by adding a spring 8 to the outside of the guide shaft 41 and the guide sleeve 42, the mechanical response characteristics of the swinging part 32 are changed, enabling it to produce more sensitive up-and-down movement under changes in wind force or cable vibration, further enriching the dynamic motion modes and enhancing the warning effect.

[0043] Specifically, in this embodiment, spring 8 is sleeved on the outer periphery of guide shaft 41 and located outside guide sleeve 42. More specifically, spring 8 is a cylindrical helical compression spring, which is sleeved on guide shaft 41 and arranged between fixed component 2 and swing part 32. The upper end of spring 8 abuts against the lower surface of base 22 of fixed component 2, and the lower end of spring 8 abuts against the upper end face of swing part 32. When swing part 32 slides upward along guide shaft 41 under the action of wind force, the upper end face of swing part 32 compresses spring 8 upward, and spring 8 is compressed and accumulates elastic potential energy; when the wind force decreases, the compressed spring 8 releases elastic potential energy, and pushes the upper end face of swing part 32 downward through its lower end, driving swing part 32 to rebound downward along guide shaft 41. Thus, the swinging part 32 forms a composite motion mechanism of "wind-driven upward movement - spring-rebound downward movement", which makes the reciprocating motion of the swinging part 32 along the constraint direction Z smoother and the frequency response more sensitive. It can even produce continuous micro-movements that can be seen by the naked eye under light wind conditions, further breaking the visual integration of the static background.

[0044] It should be noted that the spring 8 is located outside the guide sleeve 42, and its installation and removal do not require opening or entering the interior of the guide sleeve 42, making assembly and maintenance more convenient. Furthermore, the addition of the spring 8 does not change the anti-rotation constraint relationship between the guide shaft 41 and the guide sleeve 42. The mating cross-section of the guide shaft 41 and the guide sleeve 42 is still constructed as a non-circular cross-section (such as a square cross-section), allowing only linear sliding relative to each other along the constraint direction Z, while preventing rotation around the axis. The elastic force provided by the spring 8 is only along the constraint direction Z and does not generate circumferential torque, therefore it will not affect the anti-winding function.

[0045] As an alternative, the position and direction of force application of spring 8 can be varied. For example, spring 8 can be sleeved on guide shaft 41 and located below swing part 32, that is, the upper end of spring 8 abuts against the lower end face of swing part 32, and the lower end abuts against the limiting step or buckle 8 at the lower end of guide shaft 41; in this case, when swing part 32 moves downward, spring 8 is compressed, and when spring rebounds, it pushes swing part 32 upward, forming a motion mode of "wind or gravity driving downward - spring rebounding upward". Alternatively, spring 8 can be a tension spring, with its upper end connected to base 22 of fixed component 2 and its lower end connected to the upper end face of swing part 32; when swing part 32 moves downward, tension spring is stretched and accumulates recoil force, which pulls swing part 32 upward when the wind force decreases. Regarding the selection of the number of springs, when the guide constraint mechanism 4 has at least two guide shafts 41, a spring 8 can be fitted on only one guide shaft, while the other shaft can be left unloaded and only serve as a guide to prevent rotation; alternatively, a spring 8 can be fitted on each guide shaft to provide greater elastic restoring force and ensure balanced force distribution. Springs with different stiffnesses and effective coil numbers can also be selected according to the required elastic force and response characteristics, or variable stiffness springs can be used. All of the above alternative solutions are extensions of the scope of protection of this invention.

[0046] As a preferred option, the spring 8 is made of stainless steel with a passivated or weather-resistant coating to improve its service life in harsh outdoor environments such as humidity and salt spray. Wear-resistant washers can be installed at both ends of the spring 8 to reduce friction and wear between it and the lower surface of the base 22 and the upper surface of the swinging part 32. When the flexible connecting strip 33 is an annular weather-resistant rubber strip, the spring 8 is arranged in the inner cavity of the flexible connecting strip 33, that is, within the annular gap area between the fixed part 31 and the swinging part 32. It is protected from direct exposure to external dust and rain by the dual protection of the sphere 3 shell and the flexible connecting strip 33, further improving its operational reliability.

[0047] In this embodiment, the addition of spring 8 and damping mechanism 7 form a synergistic relationship. The silicone oil and counterweight 72 in damping mechanism 7 mainly consume the vibration energy of the swinging part 32 during its movement, playing a role in suppressing excessive amplitude and preventing resonance; while spring 8, located outside the guide shaft, provides elastic restoring force, enabling the swinging part 32 to produce a significant reciprocating motion response even under small wind excitation. The two components, one "storing" and the other "consuming," make the dynamic movement of the swinging part 32 both sensitive and stable, neither sluggish due to excessive damping nor prone to uncontrolled large-scale swaying due to wind fluctuations. This spring-damping composite design further optimizes the adaptability of this device to the unique micro-wind vibration environment of overhead cables.

[0048] As an extended application, the technical solution in this embodiment, which involves "adding a spring to the outside of the guide shaft and guide sleeve to drive the swinging part to reciprocate along the constraint direction," is not only applicable to the aviation obstacle ball of this invention, but can also be independently applied to other situations requiring elastic reciprocating motion under limited degrees of freedom, such as wind-powered bird deterrents, swaying signs, and elastically suspended warning lights. Any design that adds an elastic element to the outside of the linear sliding pair formed by the guide shaft and guide sleeve to change the motion response characteristics is an extension of this technical concept.

[0049] Apart from the differences mentioned above, the installation and operation of the fixing component 2, the ball 3 and the flexible connecting strip 33, the sealing component 5, the fall protection safety rope 6, the damping mechanism 7, the warning component 9, and the whole are completely the same as in Embodiment 1, and will not be repeated here.

[0050] In practical work The intelligent dynamic warning aviation obstacle ball of this embodiment is easy to install. During installation, first, the U-shaped clamp 21 is tightly held and secured to the predetermined position of the power transmission cable 1, so that the base 22 is firmly clamped. Then, the entire assembly, including the swing part 32, damping mechanism 7, fall arrest safety rope 6, flexible connecting strap 33, and warning component 9, is lifted from below, so that the two guide sleeves 42 are aligned with the two guide shafts 41 and pushed in until the ends of the guide sleeves 42 are in place with the guide shafts 41. Then, the swing part 32 is axially locked, completing the quick manual installation. In actual operation, the unique micro-wind vibration of the overhead power transmission cable or the natural wind force acts on the asymmetrical surface of the ball 3, driving the swing part 32 to float and swing non-periodically along the guide shaft 41. This continuous micro-dynamic movement, combined with the high-visibility coating 91, reflective strip 92, active light-emitting module 93, and dynamic warning signs 94a and 94b, generates eye-catching visual signals under various lighting conditions, including daytime, nighttime, and rainy weather. It breaks through the camouflage of static backgrounds, significantly improves long-distance visual salience, and achieves dynamic anti-fusion warning. Simultaneously, highly reliable redundant fall protection, sealed anti-jamming design, and damping vibration suppression design ensure long-term maintenance-free operation of the device, meeting the safety requirements of high-altitude power grid equipment.

[0051] In summary, this intelligent dynamic warning aviation obstacle ball breaks through the camouflage of a static background through a dynamic visual mechanism, avoids visual fusion, and enables drones and other aircraft to detect the presence of cables in advance, thereby achieving efficient dynamic warning; it is suitable for industry promotion.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Those skilled in the art, knowing the principles and spirit of the present invention, can make various changes, modifications, substitutions, and variations to these embodiments, such as changing the specific anti-rotation cross-sectional shape of the guide shaft and guide sleeve, the structural form of the sealing assembly, the specific configuration of the warning assembly, and the materials of each component. All such improvements and extensions should be included within the protection scope of the present invention.

[0053] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. An intelligent dynamic warning aviation obstacle ball, characterized in that, include: Fixing components for clamping and securing power transmission cables; A sphere is movably connected to the fixed assembly. The sphere is divided into a fixed part and a swinging part by at least one flexible connecting strip. The fixed part is fixedly connected to the fixed assembly, and the swinging part is connected to the fixed part through the flexible connecting strip, so that the swinging part can move relative to the fixed part. A guiding constraint mechanism includes a guide shaft and a guide sleeve that are mutually adapted to each other. The guide shaft is fixed to the fixing assembly along a constraint direction, which is perpendicular to the axis of the power transmission cable. The guide sleeve is opened in the swing portion along the constraint direction and is slidably sleeved on the guide shaft. The cross-section of the guide shaft and the guide sleeve is configured such that the swinging part can only reciprocate linearly along the constraint direction, and the swinging part is prevented from rotating around the guide shaft. A warning component is disposed on the outer surface of the sphere to enhance visual visibility.

2. The intelligent dynamic warning aviation obstacle ball according to claim 1, characterized in that, The guide shaft is a shaft with a non-circular cross-section, and the guide sleeve has a non-circular inner hole that matches the cross-sectional shape of the guide shaft.

3. The intelligent dynamic warning aviation obstacle ball according to claim 1, characterized in that, A sealing assembly is provided between at least one end of the guide sleeve and the guide shaft. The sealing assembly has a flexible dust cover to isolate external dust and rain.

4. The intelligent dynamic warning aviation obstacle ball according to claim 1, characterized in that, It also includes a fall protection safety rope, one end of which is connected to the fixed part and the other end of which is connected to the swinging part; the fall protection safety rope is a flexible steel wire rope, and its length margin is greater than the maximum sliding stroke of the swinging part along the constraint direction.

5. The intelligent dynamic warning aviation obstacle ball according to claim 1, characterized in that, The swinging part is equipped with a damping mechanism, which includes a damping cavity filled with silicone oil and a counterweight block disposed in the damping cavity to dissipate wind-induced vibration energy.

6. The intelligent dynamic warning aviation obstacle ball according to claim 1, characterized in that, The flexible connecting strip is a ring-shaped weather-resistant rubber strip, with its inner periphery connected to the fixed part and its outer periphery connected to the swinging part, so as to close the gap between the fixed part and the swinging part.

7. The intelligent dynamic warning aviation obstacle ball according to claim 1, characterized in that, An elastic reset member is provided between the guide shaft and the guide sleeve. The elastic reset member is configured such that when the swinging part slides along the constraint direction, the elastic reset member accumulates elastic potential energy and releases elastic potential energy when the external force changes, so as to drive the swinging part to reciprocate along the constraint direction.

8. The intelligent dynamic warning aviation obstacle ball according to claim 1, characterized in that, The fixing component includes a U-shaped clamp and a base fixed to the U-shaped clamp, the base being clamped to the power transmission cable.

9. The intelligent dynamic warning aviation obstacle ball according to claim 1, characterized in that, The warning component includes a highly visible coating applied to the outer surface of the sphere and multiple reflective strips disposed on the outer surface of the sphere.

10. The intelligent dynamic warning aviation obstacle ball according to claim 1, characterized in that, The warning component includes at least one active light-emitting module, which is located at the sphere. The active light-emitting module includes LED beads, a solar panel, and an energy storage element. The solar panel is used to charge the energy storage element, and the energy storage element is used to power the LED beads.

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