Offshore power transmission line self-powered bird repelling device and bird repelling method

Abstract

The application discloses a near-shore power transmission line self-energy-supply bird repelling device, which comprises a fixing box, a photovoltaic power generation unit and a bird-proof thorn power generation unit are installed on the outer wall of the fixing box, and a radar detector is installed on the outer wall of the fixing box; a power supply processing unit, a control unit and a storage battery are sequentially and electrically connected to the inner wall of the fixing box; the fixing box is installed on the surface of a cross arm of a tower; the bird-proof thorn power generation unit and the photovoltaic power generation unit are electrically connected to the power supply processing unit; an ultrasonic bird repeller is fixedly connected to the cross arm of the tower and is arranged close to the fixing box; the radar detector and the ultrasonic bird repeller are electrically connected to the control unit; and the application further discloses a near-shore power transmission line self-energy-supply bird repelling method.

Description

Technical Field

[0001] This invention belongs to the technical field of bird deterrence devices, specifically a self-powered bird deterrence device for nearshore power transmission lines. This invention also relates to a method for self-powered bird deterrence for nearshore power transmission lines. Background Technology

[0002] Offshore power transmission lines include various types such as island overhead lines, tidal flat lines, and offshore photovoltaic power collection lines. These lines traverse the sea surface and intertidal zones, where seagulls, herons, and other seabirds are frequently active, creating a complex and unique maintenance environment. Seabirds often perch and nest at critical locations such as line crossarms, combiner boxes, and cable joints. Their droppings accelerate the corrosion and aging of hardware and cables in the salt spray environment, easily causing short-circuit tripping faults. This makes bird-related faults a core hidden danger in the maintenance of offshore power lines, seriously threatening the safe and stable operation of offshore power transmission systems.

[0003] Currently, the bird deterrent equipment used for nearshore power transmission lines mainly consists of independent bird spikes and split-type ultrasonic bird repellers. Both types of traditional equipment have significant technical defects and cannot adapt to the special working conditions of nearshore areas. First, traditional metal bird spikes have extremely poor corrosion resistance and are prone to rusting, deformation, and collapse in the high salt spray and high humidity environment of nearshore areas. This not only results in the loss of physical bird deterrence, but the messy rusted structure also makes it easier for debris to accumulate, attracting seabirds to nest and increasing the risk of line failure. Furthermore, the equipment has a high failure rate and short service life. Second, split-type ultrasonic bird repellers use an external power supply mode, and the power supply line is susceptible to salt spray corrosion, leading to power outages and poor equipment stability. At the same time, the single, fixed sound wave bird deterrent mode is easily adapted to by seabirds, causing the bird deterrent effect to continuously weaken and the protective effectiveness to be insufficient.

[0004] In addition, the existing two types of bird-proofing equipment are independent, separate structures, installed individually without interconnection, and cannot achieve coordinated protection through physical barrier and sound wave repellency, resulting in a fragmented and simplistic protection mode. Overall, traditional bird-proofing equipment generally suffers from poor corrosion resistance, high failure rate, high maintenance costs, poor protective effect, and lack of coordinated protection mechanisms. It completely fails to meet the industry's demand for integrated, low-maintenance, and long-term stable protection under the harsh conditions of high salt spray, strong gusts, and high humidity in nearshore areas, and is unable to fundamentally solve the problem of frequent bird-related faults in nearshore power transmission lines. Summary of the Invention

[0005] The purpose of this invention is to provide a self-powered bird deterrent device for near-shore power transmission lines, which solves the problems of traditional bird deterrent devices being easily corroded by salt spray, having unstable power supply, and lacking coordination with bird detection and deterrence in the prior art.

[0006] Another objective of this invention is to provide a self-powered bird deterrence method for near-shore power transmission lines, which solves the problems of insufficient coordination between detection and bird deterrence actions and poor long-term operational reliability in the prior art.

[0007] The technical solution adopted in this invention is a self-powered bird deterrent device for offshore power transmission lines, comprising a fixed box. A photovoltaic power generation unit, a bird spike generator, and a radar detector are installed on the outer wall of the fixed box. A power processing unit, a control unit, and a battery are electrically connected sequentially to the inner wall of the fixed box. The fixed box is installed on the surface of the crossarm of the tower. The bird spike generator and the photovoltaic power generation unit are both electrically connected to the power processing unit. An ultrasonic bird deterrent is fixed to the crossarm of the tower. The ultrasonic bird deterrent is positioned close to the fixed box. The radar detector and the ultrasonic bird deterrent are both electrically connected to the control unit.

[0008] The invention is further characterized by: The bird spike generator unit is a column with a pointed end. A nylon layer is provided on one side of the column's cross-section, and a PTFE membrane is provided on the opposite side of the column's cross-section. There is a gap between the nylon layer and the PTFE membrane. A first metal electrode is provided between the nylon layer and the inner wall of the bird spike generator unit, and a second metal electrode is provided between the PTFE membrane and the inner wall of the bird spike generator unit. The first and second metal electrodes are connected to the power processing unit. Several bird spikes are provided on the outer wall of the bird spike generator unit.

[0009] Several bird spikes are randomly positioned at an angle of 0 to 180° between them and the outer wall of the bird spike power generation unit.

[0010] The power processing unit includes a rectifier bridge connected to a voltage regulator capacitor; the voltage regulator capacitor is connected to a control unit, the control unit is also connected to a solar controller, the solar controller is connected to a photovoltaic power generation unit, and the battery is connected to the control unit.

[0011] The photovoltaic power generation unit consists of several flexible thin-film photovoltaic subarrays. The photovoltaic cells within the flexible thin-film photovoltaic subarrays are connected in series, and the flexible thin-film photovoltaic subarrays are connected in parallel with each other.

[0012] The ultrasonic bird repeller has a sealed protective shell with an IP66 waterproof rating, and there should be at least two ultrasonic bird repellers.

[0013] The electrical connection uses a waterproof signal cable.

[0014] Another technical solution adopted in this invention is a self-powered bird-repelling method for offshore power transmission lines, which specifically includes the following steps: Step 1: Set the working mode in the control unit and collect power information and bird information; Step 2: Transmit the battery information and bird information to the control unit and match it with the operating mode; Step 3: Control the ultrasonic bird repeller to complete the bird repeller operation according to the matched working mode.

[0015] Another feature of the technical solution of the present invention is that: In step 1, the power information refers to the stored power in the battery; bird information is collected and uploaded to the control unit by a radar detector, including the number of birds and the duration of their stay.

[0016] Step 1 includes three operating modes: pulse burst mode, frequency conversion scanning mode, and continuous wave low-power mode. Pulse burst mode is activated when the battery level is not less than 80%, there are at least 3 birds within a 5-15m range, and the birds stay for at least 10 seconds. In this mode, the ultrasonic bird repeller's power is adjusted to 200mW, and the operating frequency is 21kHz-25kHz. Frequency conversion scanning mode is activated when the battery level is not less than 30%, there are 1-2 birds within a 5-15m range, and the birds stay for at least 5 seconds. In this mode, the ultrasonic bird repeller's power is adjusted to 150mW, and the operating frequency is 13kHz-20kHz. Continuous wave low-power mode is activated when the battery level is less than 30%, and there are 0 or 1 birds within a 5-15m range. In this mode, the ultrasonic bird repeller's power is adjusted to 50mW, and the operating frequency is 8kHz-12kHz.

[0017] The beneficial effects of this invention are: By using a fixed box as the core installation carrier, a photovoltaic power generation unit, several bird spike generator units, a radar detector, a power processing unit, and a control unit are integrated into a single device structure, forming a compact, stable-powered, and coordinated bird detection and deterrence system for near-shore power transmission lines. This solves the drawbacks of traditional equipment being deployed separately and lacking coordinated protection. This invention features a dual-power supply module consisting of a photovoltaic power generation unit and several bird spike generator units, capable of collecting both solar and wind energy (generated using the principle of nanogenerators). The two types of generators work together and complement each other, both connected to the power processing unit. This allows for the efficient storage of electrical energy from different sources in the battery through the control unit, providing a stable power supply for subsequent detection, control, and bird deterrence actions, while also preventing overcharging of the battery and accelerated wear.

[0018] The power processing unit and control unit enable power management, signal reception, logic judgment, and command output, improving system integration and reducing the risk of corrosion and damage from exposed external wiring. Radar detectors monitor birds approaching the tower crossarm area in real time, accurately collecting data such as bird numbers and dwell time, and uploading this data to the control unit. The control unit determines whether to activate bird deterrence based on feedback signals from the radar detectors and further controls the ultrasonic bird deterrent. A battery connects the device to the control unit, ensuring basic operation even at night, in rainy weather, or with insufficient sunlight. This device is particularly suitable for near-shore environments, capable of continuous operation under conditions of high salt spray, strong winds, humidity, and unstable lighting, reducing the risks of short circuits, tripping, insulation flashover, and equipment contamination caused by bird activity to power transmission lines. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the self-powered bird deterrent device for near-shore power transmission lines of the present invention; Figure 2 This is a schematic diagram of the bird-proof spike generator unit in the self-powered bird-repelling device for near-shore power transmission lines of the present invention; Figure 3 This is a schematic diagram of the power processing unit in the self-powered bird deterrent device for near-shore power transmission lines of the present invention; Figure 4 This is a schematic diagram of the power generation principle of the bird spike generator unit in the self-powered bird deterrent device for near-shore power transmission lines of the present invention. Figure 5 This is a flowchart of the bird deterrence method for self-powered offshore power transmission lines according to the present invention.

[0020] In the diagram, 1. Bird spike generator unit, 111. Nylon layer, 112. PTFE membrane, 113. First metal electrode, 114. Second metal electrode, 115. Bird spike, 2. Photovoltaic generator unit, 3. Power processing unit, 311. Rectifier bridge, 312. Voltage regulator capacitor, 313. Solar controller, 4. Control unit, 5. Radar detector, 6. Ultrasonic bird repeller, 7. Fixing box, 8. Tower crossarm, 9. Battery. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] Self-powered bird deterrent devices for offshore power transmission lines, such as Figure 1 As shown, the device includes a fixed box 7. A photovoltaic power generation unit 2, a bird spike generator 1, and a radar detector 5 are installed on the outer wall of the fixed box 7. A power processing unit 3, a control unit 4, and a battery 9 are connected in sequence to the inner wall of the fixed box 7. The fixed box 7 is installed on the surface of the crossarm 8 of the iron tower. The bird spike generator 1 and the photovoltaic power generation unit 2 are both electrically connected to the power processing unit 3. An ultrasonic bird repeller 6 is fixed to the crossarm 8 of the iron tower. The ultrasonic bird repeller 6 is set close to the fixed box 7. The radar detector 5 and the ultrasonic bird repeller 6 are both electrically connected to the control unit 4.

[0023] like Figure 2As shown, the bird spike generator unit 1 is a column with a pointed end. A nylon layer 111 is provided on one side of the column cross-section, and a PTFE membrane 112 is provided on the side of the column cross-section opposite to the nylon layer 111. There is a gap between the nylon layer 111 and the PTFE membrane 112. A first metal electrode 113 is provided between the nylon layer 111 and the inner wall of the bird spike generator unit 1, and a second metal electrode 114 is provided between the PTFE membrane 112 and the inner wall of the bird spike generator unit 1. The first metal electrode 113 and the second metal electrode 114 are connected to the power processing unit 3. Several bird spikes 115 are provided on the outer wall of the bird spike generator unit 1.

[0024] Several bird spikes 115 are set at random angles of 0 to 180° between them and the outer wall of the bird spike power generation unit 1.

[0025] like Figure 3 As shown, the power processing unit 3 includes a rectifier bridge 311, which is connected to a voltage regulator capacitor 312; the voltage regulator capacitor 312 is connected to the control unit 4, the control unit 4 is also connected to a solar controller 313, the solar controller 313 is connected to the photovoltaic power generation unit 2, and the battery 9 is connected to the control unit 4.

[0026] Photovoltaic power generation unit 2 consists of several flexible thin-film photovoltaic subarrays. Photovoltaic cells within the flexible thin-film photovoltaic subarrays are connected in series, and several flexible thin-film photovoltaic subarrays are connected in parallel.

[0027] The ultrasonic bird repeller 6 has a sealed protective shell with an IP66 waterproof rating, and there are at least two ultrasonic bird repellers 6.

[0028] Bird deterrence methods for self-powered offshore power transmission lines, such as Figure 5 As shown, the specific steps include the following: Step 1: Set the working mode in the control unit 4 and collect power information and bird information; Step 2: Transmit the power information and bird information to the control unit 4 and match it with the working mode; Step 3: Control the ultrasonic bird repeller 6 to complete the bird repeller operation according to the matched working mode.

[0029] The power information is the stored power in the battery 9; bird information is collected and uploaded to the control unit 4 by the radar detector 5, and the bird information includes the number of birds and the time the birds stay.

[0030] Step 1 includes three operating modes: pulse burst mode, frequency conversion scanning mode, and continuous wave low-power mode. Pulse burst mode is activated when the battery level is not less than 80%, there are at least 3 birds within a 5-15m range, and the birds stay for at least 10 seconds. In this mode, the power of the ultrasonic bird repeller 6 is adjusted to 200mW, and the operating frequency is 21kHz-25kHz. Frequency conversion scanning mode is activated when the battery level is not less than 30%, there are 1-2 birds within a 5-15m range, and the birds stay for at least 5 seconds. In this mode, the power of the ultrasonic bird repeller 6 is adjusted to 150mW, and the operating frequency is 13kHz-20kHz. Continuous wave low-power mode is activated when the battery level is less than 30%, and there are 0 or 1 birds within a 5-15m range. In this mode, the power of the ultrasonic bird repeller 6 is adjusted to 50mW, and the operating frequency is 8kHz-12kHz.

[0031] The bird-repellent spike generator unit 1 outputs fluctuating AC power, which is rectified by rectifier bridge 311 and filtered and regulated by voltage regulator capacitor 312 to complete power conditioning. The flexible thin-film photovoltaic generator unit 2 synchronously collects solar energy during the day to supplement power generation, and outputs DC power to the solar controller 313 to achieve constant voltage and current limiting charging. The control unit 4 collects the remaining charge status of the battery 9 in real time, and dynamically allocates the charging weight of the two generator units according to the remaining charge, so as to stably store wind and solar energy into the battery 9. The battery 9 provides stable power to the radar detector 5, control unit 4, and ultrasonic bird repeller 6.

[0032] When there is no wind or sunlight, the bird spike 115 component in the bird spike power generation unit 1 acts as a bird deterrent; the wind drives the bird spike power generation unit 1 to vibrate slightly back and forth, causing the nylon 111 and PTFE membrane 112 to periodically contact and separate, relying on contact electrification and electrostatic induction coupling to output alternating current and store the charge in the battery 9. It can generate electricity continuously in a light breeze in a cloudy and windless environment, without affecting the basic function of the bird spike to physically block seabirds.

[0033] like Figure 2 and Figure 4As shown, the power generation principle within the bird spike generator unit 1 is as follows: Initial separation state: The nylon layer 111 and the PTFE membrane 112 are completely separated, with no induced charge; Close contact: Under sea breeze, the nylon layer 111 and the PTFE membrane 112 are tightly bonded, generating equal amounts of opposite charges through frictional charging, with the interfaces mutually shielding each other and no electrode potential difference; Elastic separation: When the wind weakens, the nylon layer 111 and the PTFE membrane 112 separate due to their own elasticity, the opposite charges lose shielding, and an open-circuit potential difference is generated at the electrodes; External connection... The load circuit generates a positive instantaneous current pulse; complete separation and equilibrium: when the nylon layer 111 and PTFE membrane 112 separate to their maximum spacing, the induced charge on the electrodes cancels out the potential difference between the nylon layer 111 and PTFE membrane 112, and the external circuit current returns to zero; re-adhesion: under the action of the sea breeze, the nylon layer 111 and PTFE membrane 112 are pressed together again, the potential difference between the nylon layer 111 and PTFE membrane 112 decreases, and the external circuit generates a reverse current pulse, completing one complete wind power generation cycle. The bird spike generator unit 1 generates electricity by transferring charges within the material, which can reduce the overall continuous metal conductive circuit and mitigate the electrochemical corrosion caused by salt spray.

[0034] The surfaces of the nylon layer 111 and the PTFE membrane 112 are processed with micro-nano columnar array microstructures to increase the effective contact area between the interfaces, improve the total charge transfer under the same vibration amplitude, and increase the power generation density. The sea breeze excites the bird spike power generation unit 1 to generate reciprocating micro-vibrations, which drive the nylon layer 111 and the PTFE membrane 112 to periodically adhere and separate. Relying on contact electrification and electrostatic induction coupling effects, wind energy is converted into alternating current energy. It can still generate electricity even under continuous cloudy and sunless conditions. The power generation structure is integrated inside the bird spike power generation unit 1 and does not change the original physical bird-blocking function.

[0035] Radar detector 5 is electrically connected to control unit 4, enabling continuous real-time monitoring of the surrounding airspace within 5-15 meters. It is resistant to floating debris and electromagnetic interference, significantly reducing false triggering. After radar detector 5 identifies a seabird target, it simultaneously uploads data on the number of birds, their size, and their dwell time to control unit 4. The detection signal is unaffected by floating debris or spatial electromagnetic interference, reducing the probability of false triggering by more than 90% compared to traditional infrared detection solutions.

[0036] The three operating modes have hourly power consumption of 0.05Wh (continuous wave low power mode), 0.15Wh (frequency conversion scanning mode), and 0.20Wh (pulse burst mode), respectively, with an average daily power consumption of 0.08~0.15Wh, which is less than the average daily total power generation of wind and solar power (0.9~1.0Wh), enabling year-round self-sufficiency in power supply. The 4Wh battery can sustain continuous wave low power mode operation for more than 72 hours on a full charge under extreme conditions without any wind or solar power supplementation. When used for bird deterrence, it is paired with bird spikes 115 for physical limiting, forming a three-in-one synergistic protection of radar warning, sound wave deterrence, and physical barrier, reducing the probability of seabirds stopping to nest.

[0037] The output AC voltage of the bird spike generator unit 1 fluctuates wildly due to wind speed, sea breeze, and environmental disturbances. Its output power is first rectified by the rectifier bridge 311 and then filtered and stabilized by the voltage regulator capacitor 312. The DC power output of the photovoltaic generator unit 2 is controlled by the solar controller 313 for voltage regulation and current limiting. The control unit 4 collects the remaining power of the battery 9 in real time and dynamically switches between the two charging paths based on the remaining power value, thus managing and storing wind and solar energy in an orderly manner. The total daily power generation of the two generator units is 0.9~1.0Wh, of which the photovoltaic generator outputs 0.6~0.67Wh daily and the bird spike generator wind-powered nanogenerator outputs 0.3~0.33Wh daily. The power generation can cover the overall power consumption of the system and leave a surplus, which can compensate for the long-term standby power loss of the control unit 4 and the radar detector 5.

[0038] Example 1 A self-powered bird deterrent device for offshore power transmission lines includes a fixed box 7. The outer wall of the fixed box 7 is equipped with a photovoltaic power generation unit 2, a bird spike power generation unit 1, and a radar detector 5. The inner wall of the fixed box 7 is electrically connected to a power processing unit 3, a control unit 4, and a battery 9. The fixed box 7 is installed on the surface of the crossarm 8 of the tower. The bird spike power generation unit 1 and the photovoltaic power generation unit 2 are both electrically connected to the power processing unit 3. An ultrasonic bird deterrent device 6 is fixed to the crossarm 8 of the tower. The ultrasonic bird deterrent device 6 is set close to the fixed box 7. The radar detector 5 and the ultrasonic bird deterrent device 6 are both electrically connected to the control unit 4.

[0039] Example 2 A self-powered bird deterrent device for offshore power transmission lines includes a fixed box 7. The outer wall of the fixed box 7 is equipped with a photovoltaic power generation unit 2, a bird spike power generation unit 1, and a radar detector 5. The inner wall of the fixed box 7 is electrically connected to a power processing unit 3, a control unit 4, and a battery 9. The fixed box 7 is installed on the surface of the crossarm 8 of the tower. The bird spike power generation unit 1 and the photovoltaic power generation unit 2 are both electrically connected to the power processing unit 3. An ultrasonic bird deterrent device 6 is fixed to the crossarm 8 of the tower. The ultrasonic bird deterrent device 6 is set close to the fixed box 7. The radar detector 5 and the ultrasonic bird deterrent device 6 are both electrically connected to the control unit 4.

[0040] The bird spike generator unit 1 is a column with a pointed end. A nylon layer 111 is provided on one side of the column cross-section, and a PTFE membrane 112 is provided on the opposite side of the column cross-section. There is a gap between the nylon layer 111 and the PTFE membrane 112. A first metal electrode 113 is provided between the nylon layer 111 and the inner wall of the bird spike generator unit 1, and a second metal electrode 114 is provided between the PTFE membrane 112 and the inner wall of the bird spike generator unit 1. The first metal electrode 113 and the second metal electrode 114 are connected to the power processing unit 3. Several bird spikes 115 are provided on the outer wall of the bird spike generator unit 1.

[0041] The photovoltaic power generation unit 2 employs a low-power flexible thin-film photovoltaic subarray, embedded and wrapped around the outer wall of the decagonal prism fixing box 7. This embedded structure is less prone to accumulating sea salt and dust, avoiding shading that could cause power generation attenuation. Under any solar irradiation angle during the day, the effective light-receiving area of ​​the module is no less than 400 cm², and the peak output power is no less than 300 mW. The photovoltaic power generation unit 2 and the bird-repelling spike power generation unit 1 work together to provide complementary power, ensuring that the system can maintain its ultrasonic bird-repelling function under various weather conditions, including rain, strong winds, and cloudy skies, adapting to the variable weather environment of the nearshore sea surface.

[0042] Example 3 A self-powered bird deterrent device for offshore power transmission lines includes a fixed box 7. The outer wall of the fixed box 7 is equipped with a photovoltaic power generation unit 2, a bird spike power generation unit 1, and a radar detector 5. The inner wall of the fixed box 7 is electrically connected to a power processing unit 3, a control unit 4, and a battery 9. The fixed box 7 is installed on the surface of the crossarm 8 of the tower. The bird spike power generation unit 1 and the photovoltaic power generation unit 2 are both electrically connected to the power processing unit 3. An ultrasonic bird deterrent device 6 is fixed to the crossarm 8 of the tower. The ultrasonic bird deterrent device 6 is set close to the fixed box 7. The radar detector 5 and the ultrasonic bird deterrent device 6 are both electrically connected to the control unit 4.

[0043] The bird spike generator unit 1 is a column with a pointed end. A nylon layer 111 is provided on one side of the column cross-section, and a PTFE membrane 112 is provided on the opposite side of the column cross-section. There is a gap between the nylon layer 111 and the PTFE membrane 112. A first metal electrode 113 is provided between the nylon layer 111 and the inner wall of the bird spike generator unit 1, and a second metal electrode 114 is provided between the PTFE membrane 112 and the inner wall of the bird spike generator unit 1. The first metal electrode 113 and the second metal electrode 114 are connected to the power processing unit 3. Several bird spikes 115 are provided on the outer wall of the bird spike generator unit 1.

[0044] Several bird spikes 115 are set at a 30° angle to the outer wall of the bird spike power generation unit 1.

[0045] The bird spike generator unit 1 is mounted in a fixed box 7 of a regular decagonal prism with a side length of 20cm.

[0046] The power processing unit 3 includes a rectifier bridge 311, which is connected to a voltage regulator capacitor 312. The voltage regulator capacitor 312 is connected to a control unit 4, which is also connected to a solar controller 313. The solar controller 313 is connected to the photovoltaic power generation unit 2, and the battery 9 is connected to the control unit 4.

[0047] Photovoltaic power generation unit 2 consists of several flexible thin-film photovoltaic subarrays. Photovoltaic cells within the flexible thin-film photovoltaic subarrays are connected in series, and several flexible thin-film photovoltaic subarrays are connected in parallel.

[0048] Example 4 A self-powered bird deterrent device for offshore power transmission lines includes a fixed box 7. The outer wall of the fixed box 7 is equipped with a photovoltaic power generation unit 2, a bird spike power generation unit 1, and a radar detector 5. The inner wall of the fixed box 7 is electrically connected to a power processing unit 3, a control unit 4, and a battery 9. The fixed box 7 is installed on the surface of the crossarm 8 of the tower. The bird spike power generation unit 1 and the photovoltaic power generation unit 2 are both electrically connected to the power processing unit 3. An ultrasonic bird deterrent device 6 is fixed to the crossarm 8 of the tower. The ultrasonic bird deterrent device 6 is set close to the fixed box 7. The radar detector 5 and the ultrasonic bird deterrent device 6 are both electrically connected to the control unit 4.

[0049] The bird spike generator unit 1 is a column with a pointed end. A nylon layer 111 is provided on one side of the column cross-section, and a PTFE membrane 112 is provided on the opposite side of the column cross-section. There is a gap between the nylon layer 111 and the PTFE membrane 112. A first metal electrode 113 is provided between the nylon layer 111 and the inner wall of the bird spike generator unit 1, and a second metal electrode 114 is provided between the PTFE membrane 112 and the inner wall of the bird spike generator unit 1. The first metal electrode 113 and the second metal electrode 114 are connected to the power processing unit 3. Several bird spikes 115 are provided on the outer wall of the bird spike generator unit 1.

[0050] Several bird spikes 115 are spaced at 60° and 135° intervals from the outer wall of the bird spike power generation unit 1.

[0051] The power processing unit 3 includes a rectifier bridge 311, which is connected to a voltage regulator capacitor 312. The voltage regulator capacitor 312 is connected to a control unit 4, which is also connected to a solar controller 313. The solar controller 313 is connected to the photovoltaic power generation unit 2, and the battery 9 is connected to the control unit 4.

[0052] Photovoltaic power generation unit 2 consists of several flexible thin-film photovoltaic subarrays. Photovoltaic cells within the flexible thin-film photovoltaic subarrays are connected in series, and several flexible thin-film photovoltaic subarrays are connected in parallel.

[0053] The ultrasonic bird repeller 6 has a sealed protective shell with an IP66 waterproof rating, and there are at least two ultrasonic bird repellers 6.

[0054] Example 5 A self-powered bird deterrent device for offshore power transmission lines includes a fixed box 7. The outer wall of the fixed box 7 is equipped with a photovoltaic power generation unit 2, a bird spike power generation unit 1, and a radar detector 5. The inner wall of the fixed box 7 is electrically connected to a power processing unit 3, a control unit 4, and a battery 9. The fixed box 7 is installed on the surface of the crossarm 8 of the tower. The bird spike power generation unit 1 and the photovoltaic power generation unit 2 are both electrically connected to the power processing unit 3. An ultrasonic bird deterrent device 6 is fixed to the crossarm 8 of the tower. The ultrasonic bird deterrent device 6 is set close to the fixed box 7. The radar detector 5 and the ultrasonic bird deterrent device 6 are both electrically connected to the control unit 4.

[0055] The bird spike generator unit 1 is a column with a pointed end. A nylon layer 111 is provided on one side of the column cross-section, and a PTFE membrane 112 is provided on the opposite side of the column cross-section. There is a gap between the nylon layer 111 and the PTFE membrane 112. A first metal electrode 113 is provided between the nylon layer 111 and the inner wall of the bird spike generator unit 1, and a second metal electrode 114 is provided between the PTFE membrane 112 and the inner wall of the bird spike generator unit 1. The first metal electrode 113 and the second metal electrode 114 are connected to the power processing unit 3. Several bird spikes 115 are provided on the outer wall of the bird spike generator unit 1.

[0056] Several bird spikes 115 are set at 0° to the outer wall of the bird spike power generation unit 1.

[0057] The power processing unit 3 includes a rectifier bridge 311, which is connected to a voltage regulator capacitor 312. The voltage regulator capacitor 312 is connected to a control unit 4, which is also connected to a solar controller 313. The solar controller 313 is connected to the photovoltaic power generation unit 2, and the battery 9 is connected to the control unit 4.

[0058] Photovoltaic power generation unit 2 consists of several flexible thin-film photovoltaic subarrays. Photovoltaic cells within the flexible thin-film photovoltaic subarrays are connected in series, and several flexible thin-film photovoltaic subarrays are connected in parallel.

[0059] The ultrasonic bird repeller 6 is encased in a sealed protective shell with an IP66 waterproof rating. There are six ultrasonic bird repellers 6, which are symmetrically arranged about the mounting box 7.

[0060] Example 6 A self-powered bird deterrent device for offshore power transmission lines includes a fixed box 7. The outer wall of the fixed box 7 is equipped with a photovoltaic power generation unit 2, a bird spike power generation unit 1, and a radar detector 5. The inner wall of the fixed box 7 is electrically connected to a power processing unit 3, a control unit 4, and a battery 9. The fixed box 7 is installed on the surface of the crossarm 8 of the tower. The bird spike power generation unit 1 and the photovoltaic power generation unit 2 are both electrically connected to the power processing unit 3. An ultrasonic bird deterrent device 6 is fixed to the crossarm 8 of the tower. The ultrasonic bird deterrent device 6 is set close to the fixed box 7. The radar detector 5 and the ultrasonic bird deterrent device 6 are both electrically connected to the control unit 4.

[0061] The bird spike generator unit 1 is a column with a pointed end. A nylon layer 111 is provided on one side of the column cross-section, and a PTFE membrane 112 is provided on the opposite side of the column cross-section. There is a gap between the nylon layer 111 and the PTFE membrane 112. A first metal electrode 113 is provided between the nylon layer 111 and the inner wall of the bird spike generator unit 1, and a second metal electrode 114 is provided between the PTFE membrane 112 and the inner wall of the bird spike generator unit 1. The first metal electrode 113 and the second metal electrode 114 are connected to the power processing unit 3. Several bird spikes 115 are provided on the outer wall of the bird spike generator unit 1.

[0062] Several bird spikes 115 are set at random angles of 0° or 180° between themselves and the outer wall of the bird spike power generation unit 1.

[0063] The power processing unit 3 includes a rectifier bridge 311, which is connected to a voltage regulator capacitor 312. The voltage regulator capacitor 312 is connected to a control unit 4, which is also connected to a solar controller 313. The solar controller 313 is connected to the photovoltaic power generation unit 2, and the battery 9 is connected to the control unit 4.

[0064] Photovoltaic power generation unit 2 consists of several flexible thin-film photovoltaic subarrays. Photovoltaic cells within the flexible thin-film photovoltaic subarrays are connected in series, and several flexible thin-film photovoltaic subarrays are connected in parallel.

[0065] The ultrasonic bird repeller 6 has a sealed protective shell with an IP66 waterproof rating. There are eight ultrasonic bird repellers 6.

[0066] The bird deterrence method using self-powered offshore power transmission lines includes the following steps: Step 1: Set the working mode in the control unit 4 and collect power information and bird information; Step 2: Transmit the power information and bird information to the control unit 4 and match it with the working mode; Step 3: Control the ultrasonic bird repeller 6 to complete the bird repeller operation according to the matched working mode.

[0067] The power information is the stored power in the battery 9; bird information is collected and uploaded to the control unit 4 by the radar detector 5, and the bird information includes the number of birds and the time the birds stay.

[0068] The operating modes in step 1 include pulse burst mode, frequency conversion scanning mode, and continuous wave low power mode. Pulse burst mode is activated when the battery level is 80%, there are 3 birds within a 5m range, and the bird stays for 10s. At this time, the power of the ultrasonic bird repeller 6 is adjusted to 200mW, and the operating frequency is 21kHz. Frequency conversion scanning mode is activated when the battery level is 30%, there is 1 bird within a 5m range, and the bird stays for 5s. At this time, the power of the ultrasonic bird repeller 6 is adjusted to 150mW, and the operating frequency is 13kHz. Continuous wave low power mode is activated when the battery level is less than 10%, there are 0 birds within a 5m range, and the power of the ultrasonic bird repeller 6 is adjusted to 50mW, and the operating frequency is 8kHz.

[0069] Example 7 A self-powered bird deterrent device for offshore power transmission lines includes a fixed box 7. The outer wall of the fixed box 7 is equipped with a photovoltaic power generation unit 2, a bird spike power generation unit 1, and a radar detector 5. The inner wall of the fixed box 7 is electrically connected to a power processing unit 3, a control unit 4, and a battery 9. The fixed box 7 is installed on the surface of the crossarm 8 of the tower. The bird spike power generation unit 1 and the photovoltaic power generation unit 2 are both electrically connected to the power processing unit 3. An ultrasonic bird deterrent device 6 is fixed to the crossarm 8 of the tower. The ultrasonic bird deterrent device 6 is set close to the fixed box 7. The radar detector 5 and the ultrasonic bird deterrent device 6 are both electrically connected to the control unit 4.

[0070] The bird spike generator unit 1 is a column with a pointed end. A nylon layer 111 is provided on one side of the column cross-section, and a PTFE membrane 112 is provided on the opposite side of the column cross-section. There is a gap between the nylon layer 111 and the PTFE membrane 112. A first metal electrode 113 is provided between the nylon layer 111 and the inner wall of the bird spike generator unit 1, and a second metal electrode 114 is provided between the PTFE membrane 112 and the inner wall of the bird spike generator unit 1. The first metal electrode 113 and the second metal electrode 114 are connected to the power processing unit 3. Several bird spikes 115 are provided on the outer wall of the bird spike generator unit 1.

[0071] Several bird spikes 115 are randomly positioned at 45° or 135° to the outer wall of the bird spike power generation unit 1.

[0072] The power processing unit 3 includes a rectifier bridge 311, which is connected to a voltage regulator capacitor 312. The voltage regulator capacitor 312 is connected to a control unit 4, which is also connected to a solar controller 313. The solar controller 313 is connected to the photovoltaic power generation unit 2, and the battery 9 is connected to the control unit 4.

[0073] Photovoltaic power generation unit 2 consists of several flexible thin-film photovoltaic subarrays. Photovoltaic cells within the flexible thin-film photovoltaic subarrays are connected in series, and several flexible thin-film photovoltaic subarrays are connected in parallel.

[0074] The ultrasonic bird repeller 6 has a sealed protective shell with an IP66 waterproof rating. There are four ultrasonic bird repellers 6.

[0075] The bird deterrence method using self-powered offshore power transmission lines includes the following steps: Step 1: Set the working mode in the control unit 4 and collect power information and bird information; Step 2: Transmit the power information and bird information to the control unit 4 and match it with the working mode; Step 3: Control the ultrasonic bird repeller 6 to complete the bird repeller operation according to the matched working mode.

[0076] The power information is the stored power in the battery 9; bird information is collected and uploaded to the control unit 4 by the radar detector 5, and the bird information includes the number of birds and the time the birds stay.

[0077] Step 1 includes three operating modes: pulse burst mode, frequency conversion scanning mode, and continuous wave low power mode. The pulse burst mode is activated when the battery level is 85%, there are 6 birds within a 15m range, and the dwell time is 13s. At this time, the power of the ultrasonic bird repeller 6 is adjusted to 200mW, and the operating frequency is 25kHz. The frequency conversion scanning mode is activated when the battery level is 35%, there are 2 birds within a 15m range, and the dwell time is 7s. At this time, the power of the ultrasonic bird repeller 6 is adjusted to 150mW, and the operating frequency is 20kHz. The continuous wave low power mode is activated when the battery level is 13%, there is 1 bird within a 15m range. At this time, the power of the ultrasonic bird repeller 6 is adjusted to 50mW, and the operating frequency is 12kHz.

[0078] Example 8 A self-powered bird deterrent device for offshore power transmission lines includes a fixed box 7. The outer wall of the fixed box 7 is equipped with a photovoltaic power generation unit 2, a bird spike power generation unit 1, and a radar detector 5. The inner wall of the fixed box 7 is electrically connected to a power processing unit 3, a control unit 4, and a battery 9. The fixed box 7 is installed on the surface of the crossarm 8 of the tower. The bird spike power generation unit 1 and the photovoltaic power generation unit 2 are both electrically connected to the power processing unit 3. An ultrasonic bird deterrent device 6 is fixed to the crossarm 8 of the tower. The ultrasonic bird deterrent device 6 is set close to the fixed box 7. The radar detector 5 and the ultrasonic bird deterrent device 6 are both electrically connected to the control unit 4.

[0079] The bird spike generator unit 1 is a column with a pointed end. A nylon layer 111 is provided on one side of the column cross-section, and a PTFE membrane 112 is provided on the opposite side of the column cross-section. There is a gap between the nylon layer 111 and the PTFE membrane 112. A first metal electrode 113 is provided between the nylon layer 111 and the inner wall of the bird spike generator unit 1, and a second metal electrode 114 is provided between the PTFE membrane 112 and the inner wall of the bird spike generator unit 1. The first metal electrode 113 and the second metal electrode 114 are connected to the power processing unit 3. Several bird spikes 115 are provided on the outer wall of the bird spike generator unit 1.

[0080] Several bird spikes 115 are randomly positioned at 65°, 30°, 135° or 180° relative to the outer wall of the bird spike power generation unit 1.

[0081] The power processing unit 3 includes a rectifier bridge 311, which is connected to a voltage regulator capacitor 312. The voltage regulator capacitor 312 is connected to a control unit 4, which is also connected to a solar controller 313. The solar controller 313 is connected to the photovoltaic power generation unit 2, and the battery 9 is connected to the control unit 4.

[0082] Photovoltaic power generation unit 2 consists of several flexible thin-film photovoltaic subarrays. Photovoltaic cells within the flexible thin-film photovoltaic subarrays are connected in series, and several flexible thin-film photovoltaic subarrays are connected in parallel.

[0083] The ultrasonic bird repeller 6 has a sealed protective shell with an IP66 waterproof rating. There are two ultrasonic bird repellers 6.

[0084] The bird deterrence method using self-powered offshore power transmission lines includes the following steps: Step 1: Set the working mode in the control unit 4 and collect power information and bird information; Step 2: Transmit the power information and bird information to the control unit 4 and match it with the working mode; Step 3: Control the ultrasonic bird repeller 6 to complete the bird repeller operation according to the matched working mode.

[0085] The power information is the stored power in the battery 9; bird information is collected and uploaded to the control unit 4 by the radar detector 5, and the bird information includes the number of birds and the time the birds stay.

[0086] The operating modes in step 1 include pulse burst mode, frequency conversion scanning mode, and continuous wave low power mode. Pulse burst mode is activated when the battery level is 86%, there are 10 birds within an 8m range, and the dwell time is 20s. At this time, the power of the ultrasonic bird repeller 6 is adjusted to 200mW, and the operating frequency is 22.5kHz. Frequency conversion scanning mode is activated when the battery level is 46%, there is 1 bird within a 10m range, and the dwell time is 8s. At this time, the power of the ultrasonic bird repeller 6 is adjusted to 150mW, and the operating frequency is 15.8kHz. Continuous wave low power mode is activated when the battery level is 16%, there is 1 bird within a 9m range, and the power of the ultrasonic bird repeller 6 is adjusted to 50mW, and the operating frequency is 10.5kHz.

Claims

1. A self-powered bird deterrent device for offshore power transmission lines, characterized in that, The device includes a fixed box (7), on the outer wall of which a photovoltaic power generation unit (2), a bird spike power generation unit (1), and a radar detector (5) are installed. The inner wall of the fixed box (7) is electrically connected to a power processing unit (3), a control unit (4), and a battery (9). The fixed box (7) is installed on the surface of the crossarm (8) of the iron tower. The bird spike power generation unit (1) and the photovoltaic power generation unit (2) are both electrically connected to the power processing unit (3). An ultrasonic bird repeller (6) is fixed to the crossarm (8) of the iron tower. The ultrasonic bird repeller (6) is located close to the fixed box (7). The radar detector (5) and the ultrasonic bird repeller (6) are both electrically connected to the control unit (4).

2. The self-powered bird deterrent device for near-shore power transmission lines according to claim 1, characterized in that, The bird spike generator unit (1) is a column with a pointed end. A nylon layer (111) is provided on one side of the column cross-section of the bird spike generator unit (1). A PTFE membrane (112) is provided on the side of the column cross-section opposite to the nylon layer (111). There is a gap between the nylon layer (111) and the PTFE membrane (112). A first metal electrode (113) is provided between the nylon layer (111) and the inner wall of the bird spike generator unit (1). A second metal electrode (114) is provided between the PTFE membrane (112) and the inner wall of the bird spike generator unit (1). The first metal electrode (113) and the second metal electrode (114) are connected to the power processing unit (3). A number of bird spikes (115) are provided on the outer wall of the bird spike generator unit (1).

3. The self-powered bird deterrent device for near-shore power transmission lines according to claim 2, characterized in that, The bird spikes (115) are set at random angles of 0 to 180° between them and the outer wall of the bird spike power generation unit (1).

4. The self-powered bird deterrent device for near-shore power transmission lines according to claim 3, characterized in that, The power processing unit (3) includes a rectifier bridge (311), which is connected to a voltage regulator capacitor (312); the voltage regulator capacitor (312) is connected to a control unit (4), the control unit (4) is also connected to a solar controller (313), the solar controller (313) is connected to a photovoltaic power generation unit (2), and the battery (9) is connected to the control unit (4).

5. The self-powered bird deterrent device for near-shore power transmission lines according to claim 4, characterized in that, The photovoltaic power generation unit (2) is composed of several flexible thin-film photovoltaic subarrays, with photovoltaic cells connected in series within each flexible thin-film photovoltaic subarray and several flexible thin-film photovoltaic subarrays connected in parallel.

6. The self-powered bird deterrent device for near-shore power transmission lines according to claim 5, characterized in that, The ultrasonic bird repeller (6) is covered with a sealed protective shell, the sealed protective shell has a waterproof rating of IP66, and there are no fewer than two ultrasonic bird repellers (6).

7. The self-powered bird deterrent device for offshore power transmission lines according to claim 6, characterized in that, The electrical connection is made using a waterproof signal cable.

8. The bird-repelling method according to claim 7, characterized in that, Specifically, the steps include the following: Step 1: Set the working mode in the control unit (4) and collect power information and bird information; Step 2: Transmit the power information and bird information to the control unit (4) and match it with the working mode; Step 3: Control the ultrasonic bird repeller (6) to complete the bird repeller operation according to the matched working mode.

9. The bird-repelling method according to claim 8, characterized in that, The power information mentioned in step 1 is the stored power in the battery (9); the bird information is collected and uploaded to the control unit (4) by the radar detector (5), and the bird information includes the number of birds and the bird stay time.

10. The bird-repelling method according to claim 9, characterized in that, The working modes described in step 1 include pulse burst mode, frequency conversion scanning mode and continuous wave low power mode. The pulse burst mode is activated when the battery level is not less than 80%, the number of birds within a range of 5-15m is not less than 3, and the dwell time is not less than 10s. At this time, the power of the ultrasonic bird repeller (6) is adjusted to 200mW and the working frequency band is 21kHz-25kHz. The frequency conversion scanning mode is activated when the battery level is not less than 30%, the number of birds within a range of 5-15m is 1-2, and the dwell time is not less than 5s. At this time, the power of the ultrasonic bird repeller (6) is adjusted to 150mW and the working frequency band is 13kHz-20kHz. The continuous wave low power mode is activated when the battery level is less than 30%, the number of birds within a range of 5-15m is 0 or 1. At this time, the power of the ultrasonic bird repeller (6) is adjusted to 50mW and the working frequency band is 8kHz-12kHz.

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