LED underwater fish gathering lamp with special spectrum

Abstract

The invention discloses a special spectrum LED underwater fish gathering lamp which comprises a bowl-shaped aluminum substrate (1), green light LED lamp beads (2) and red light LED lamp beads (3) are arranged on the bowl-shaped aluminum substrate (1), the wavelength of the light emitting spectrum of the green light LED lamp beads (2) is 490 nm, and the wavelength of the light emitting spectrum of the red light LED lamp beads (3) is 660 nm; the LED light-emitting surface on the bowl-shaped aluminum substrate (1) faces downwards to form a downward main light-emitting direction; a dimming control module (4) is arranged on the bowl-shaped aluminum substrate (1) and used for adjusting the turn-on and turn-off sequence and brightness of the green light LEDs and the red light LEDs. The total power of the cyan LEDs is 1100W + / -10%, and the total power of the red LEDs is 900W + / -10%; and the LED lamp beads are packaged on the bowl-shaped aluminum substrate (1) through a waterproof and anti-corrosion process. The fishing operation efficiency is remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of underwater lighting and aquatic fishing, and in particular relates to an LED underwater fish attracting lamp with a special spectrum. Background Art

[0002] Light cover net is a kind of cover fishing method, that is, the net covers the fishing object from top to bottom. It was first used in the South China Sea in the early 1990s. Light cover net is operated by a single fishing boat. The net is spread out with four support poles on the boat and laid in the waters under the boat. The fishing object is lured to the bottom of the net by light, and then the cover net and the support pole are quickly separated by a mechanism to cover the fishing object in the net.

[0003] The lamps used in light-covered net fishing boats are mainly divided into two categories: above-water fish-attracting lamps and underwater fish-attracting lamps. Before 2010, fish-attracting lamps were all metal halide lamps. With the rapid development of LED lighting technology, some above-water fish-attracting lamps have been replaced by LED lamps. After the net is set up after turning on the lights to attract fish, the above-water fish-attracting lamps are gradually turned off. When half of the lights are turned off, the underwater fish-attracting lamps are turned on, and then the remaining above-water fish-attracting lamps are gradually turned off. The process of turning off the fish-attracting lamps lasts about 10 minutes, attracting the fish to the surface below the hull, making it easier to cover the catch when the cover net sinks.

[0004] In actual use, underwater fish attracting lights usually use 2000W high-power metal halide lamps, which are not effective in attracting fish to the surface below the hull, so that the fish escape from the net mouth during the sinking process under the gravity of the sinking net, which ultimately leads to poor fishing effect. The present invention ensures the fish attracting effect while facilitating the concentration of fish to the surface below the hull. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes an LED underwater fish-attracting lamp with a special spectrum, which uses high-power LED lamp beads and optimizes the emission direction of light. It uses two lamp beads with different spectra and is equipped with a dimming control module, which can not only increase the depth of fish luring, but also increase the effect of fish attracting. While ensuring the fish luring effect, it is convenient to concentrate the fish to the surface below the hull.

[0006] To achieve the above object, the present invention provides an LED underwater fish attracting light with a special spectrum, comprising:

[0007] Bow-shaped aluminum substrate, on which a cyan LED lamp bead and a red LED lamp bead are arranged. The emission spectrum wavelength of the cyan LED lamp bead is 490 nm, and the emission spectrum wavelength of the red LED lamp bead is 660 nm. The LED light-emitting surface direction on the bowl-shaped aluminum substrate is downward, forming a downward main light-emitting direction. A dimming control module is provided on the bowl-shaped aluminum substrate for adjusting the on-off sequence and brightness of the cyan LED and the red LED. The total power of the cyan LED is 1100W ± 10%, and the total power of the red LED is 900W ± 10%. The LED lamp beads are encapsulated on the bowl-shaped aluminum substrate through a waterproof and anti-corrosion process.

[0008] Optionally, a circular opening is provided below the bowl-shaped aluminum substrate, and the cyan LED lamp beads and the red LED lamp beads are evenly arranged along the circumference of the substrate.

[0009] Optionally, the dimming control module includes a temperature control switch. The disconnection temperature threshold of the temperature control switch is 70°C ± 2°C, and the closing temperature threshold is 65°C ± 2°C.

[0010] Optionally, the spectrum of the cyan LED lamp bead is near the 490 nm band, and the spectrum of the red LED lamp bead is near the 660 nm band.

[0011] Optionally, the cyan light generated by the cyan LED lamp bead can reach an effective irradiation depth of 40 - 50 meters in seawater, and the suitable illumination area of the red light generated by the red LED lamp bead for general fish schools is 10 - 16.5 meters away from the lamp.

[0012] Optionally, the waterproof and anti-corrosion process includes anodic oxidation treatment and epoxy resin potting. The thickness of the anodic oxidation layer is ≥15 μm, and the Shore hardness of the epoxy resin after curing is ≥80D.

[0013] Optionally, the dimming control module is also provided with a cyan LED current adjustment and a red LED current adjustment unit for respectively adjusting the brightness of the cyan LED and the red LED.

[0014] Technical effects of the present invention: The present invention discloses an LED underwater fish aggregating lamp with a special spectrum. Currently, the underwater fish aggregating lamp on a light net fishing boat usually uses a high-power metal halide lamp of 2000W. Due to the unsatisfactory spectrum, light emission direction, etc. of the light, the effect of attracting fish schools to the near-surface layer below the hull is not good enough, resulting in the escape of fish schools during the sinking process of the sinking line of the net, and ultimately the fishing effect is not good enough. The present invention uses high-power LED lamp beads to optimize the light emission direction; uses two lamp beads with different spectra and installs a dimming control module, which can not only increase the depth of attracting fish but also increase the effect of aggregating fish. While ensuring the fish attracting effect, it is convenient to concentrate the fish schools on the surface layer below the hull. Description of the Drawings

[0015] The accompanying drawings, which form a part of this application, are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0016] Figure 1 It is a schematic diagram of the downward light-emitting direction of the underwater lamp of an LED underwater fish-aggregating lamp with a special spectrum according to an embodiment of the present invention;

[0017] Figure 2 It is a schematic diagram of the light absorption coefficient of Xisha seawater according to an embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of the emission spectrum of a blue-green LED according to an embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of the emission spectrum of a red LED according to an embodiment of the present invention;

[0020] Figure 5 It is a schematic diagram of an LED underwater fish-aggregating lamp with a special spectrum according to an embodiment of the present invention;

[0021] Figure 6 It is a cross-sectional view of an LED underwater fish-aggregating lamp with a special spectrum according to an embodiment of the present invention;

[0022] Figure 7 It is a schematic diagram of the temperature control module circuit according to an embodiment of the present invention. Detailed implementation manners

[0023] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the accompanying drawings and combine the embodiments to detail this application.

[0024] It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0025] As Figures 1 - 7 shown, in this embodiment, an LED underwater fish-aggregating lamp with a special spectrum is provided, including:

[0026] Bowl-shaped aluminum substrate 1, on which a cyan LED lamp bead 2 and a red LED lamp bead 3 are arranged. The emission spectrum wavelength of the cyan LED lamp bead 2 is 490 nm, and the emission spectrum wavelength of the red LED lamp bead 3 is 660 nm. The LED light-emitting surface on the bowl-shaped aluminum substrate 1 faces downward, forming a downward main light-emitting direction. A dimming control module 4 is provided on the bowl-shaped aluminum substrate 1 for adjusting the on-off sequence and brightness of the cyan LED and the red LED. The total power of the cyan LED is 1100W ± 10%, and the total power of the red LED is 900W ± 10%. The LED lamp beads are encapsulated on the bowl-shaped aluminum substrate 1 through a waterproof and anti-corrosion process.

[0027] Further, a circular opening is provided below the bowl-shaped aluminum substrate 1, and the cyan LED lamp beads 2 and the red LED lamp beads 3 are evenly arranged along the circumferential direction of the substrate.

[0028] Further, the dimming control module 4 includes a temperature control switch 5. The disconnection temperature threshold of the temperature control switch 5 is 70°C ± 2°C, and the closing temperature threshold is 65°C ± 2°C.

[0029] Further, the spectrum of the cyan LED lamp bead 2 is near the 490 nm band, and the spectrum of the red LED lamp bead 3 is near the 660 nm band.

[0030] Further, the cyan light generated by the cyan LED lamp bead 2 can reach an effective irradiation depth of 40 - 50 meters in seawater, and the suitable illumination area of the red light generated by the red LED lamp bead 3 for general fish schools is 10 - 16.5 meters away from the lamp.

[0031] Further, the waterproof and anti-corrosion process includes anodic oxidation treatment and epoxy resin potting. The thickness of the anodic oxidation layer is ≥15 μm, and the Shore hardness of the epoxy resin after curing is ≥80D.

[0032] Further, the dimming control module 4 is also provided with a cyan LED current adjustment and a red LED current adjustment unit for respectively adjusting the brightness of the cyan LED and the red LED.

[0033] Problem of light emission direction: The light emission directions of currently popular underwater fish-attracting lights are all towards the surroundings, and mostly horizontal illumination. The light in this direction is not convenient for attracting fish schools in deep water areas. When it is necessary to attract fish schools in deeper areas, the power cord of the lamp must be extended to sink the lamp into deeper waters. The light-emitting surface of the LED underwater fish-attracting lamp of the present invention is close to a bowl shape, and the main light-emitting direction is downward. The light emission schematic diagram is as Figure 1 shown. The light of this invention mainly illuminates the area below the lamp, and can better attract underwater fish schools.

[0034] Problem of light spectrum: The light absorption coefficient of Xisha seawater is as Figure 2As shown, the light absorption coefficient is relatively small near the 490 nm band (cyan light), approximately 0.4; the light absorption coefficient near the 660 nm band (red light) is approximately 0.7. There are two types of LED lamp beads emitting light on the light-emitting surface: cyan light lamp beads and red light lamp beads. The main wavelength of the cyan light is approximately 490 nm, and the specific spectrum is as Figure 3 shown. With a small absorption coefficient, it can penetrate a longer distance in seawater and attract deeper fish; the main wavelength of the red light LED is approximately 660 nm, and the specific spectrum is as Figure 4 shown. The light absorption coefficient of red light in seawater is relatively large, and the corresponding penetration distance is relatively short. The suitable illumination area (generally 0.1 Lux - 10 Lux) for phototactic fish is relatively small, and it can conveniently gather the fish school in the area near the water surface. It is not easy for the fish school to escape during the sinking process of the cover net sinker line, achieving the purpose of increasing the yield of fishing operations.

[0035] Light control problem: Set up the netting gear in the later stage of turning on the water surface fishing lights on the fishing boat with a light cover net. After the netting gear is set up, gradually turn off the water surface fish-aggregating lights. When half of the water surface lights are turned off, turn on the underwater fishing lights (turn on both cyan light and red light at the same time), and then gradually turn off the remaining fish-aggregating lights. After the water surface fish-aggregating lights are turned off, gradually turn off the cyan light, leaving only red light illumination. The red light illumination makes the fish school gather at a distance of 3 - 6 meters from the underwater light, that is, the fish school gathers near the surface under the hull. To prevent the LED from overheating and burning out accidentally when the underwater light is not underwater, a temperature control switch is connected at the LED current access point (next to the aluminum substrate). The current can be connected when the temperature is lower than 70 °C, and the current will automatically disconnect when the temperature is higher than 70 °C.

[0036] Specific application examples:

[0037] The underwater fish-aggregating light with a special spectrum is as Figure 5 shown. There are cyan light and red light lamp beads pasted on the surface of the bowl-shaped aluminum material, and the spectra of the two types of lamp beads are as Figure 3 and Figure 4 shown. The total power of the cyan light LED is approximately 1100 W, and the total power of the red light LED is approximately 900 W. The power supplies corresponding to the two types of LED lamp beads are also separated, and the corresponding power cords can pass through the middle hole. The sectional view is as Figure 6 shown. Waterproof and anti-corrosion surface treatments should be done for all components of the lamp before and after installation. There is a temperature control module installed inside the lamp, and the specific circuit of the temperature control module is as Figure 7 shown.

[0038] The brightness of the underwater blue light lamp is about 80,000 Lm. At a depth of 42 m underwater from the lamp, the illuminance is still 0.001 Lux, which can cause the visual sense of fish, that is, it can attract fish schools below 40 - 50 meters. The suitable illuminance for fish schools is about 0.1 - 10 Lux, and the corresponding distance from the lamp is 18.8 m - 30.3 m. Obviously, this is a relatively broad area. Therefore, blue light LEDs can effectively attract fish, but are not suitable for fish gathering. The brightness of the underwater red light lamp is about 36,000 Lm. At a depth of 23 m underwater from the lamp, the illuminance is about 0.001 Lux, and the illuminance at depths below 30 m is less than 1×10 -5 Lux, which is difficult to cause the visual induction of fish. The distance from the lamp for the light area suitable for the fish school corresponding to the red light lamp is 10 m - 16.5 m. Since the underwater lamp of the purse seine fishing boat is generally above the purse seine when in use, and the fish school gathers under the purse seine, it is appropriate to gather at a distance of 10 - 16.5 m from the lamp.

[0039] The present invention has significantly improved the fishing operation efficiency in the South China Sea area by optimizing the optical structure, spectral combination and intelligent control strategy of the underwater fish gathering lamp, which is specifically embodied as follows:

[0040] (1) Greatly improved fish attracting depth: Using blue light LED lamp beads with a main wavelength emission spectrum wavelength of 490 nm, the absorption coefficient of its 490 nm band in seawater is as low as 0.4. With a high-power output of 1100 W, the penetration depth of the light in seawater reaches 40 - 50 meters. Through actual measurement, the light intensity at a depth of 42 m underwater can still reach 0.001 Lux, effectively stimulating the phototaxis of deep-layer fish and solving the problem of insufficient fish attracting depth of traditional metal halide lamps.

[0041] (2) Precise and controllable fish gathering efficiency: Through the synergistic effect of red light LED lamp beads with a luminous spectrum wavelength of 660 nm (in the 660 nm band, the light absorption coefficient of seawater ≥ 0.7) and blue light lamp beads, a layered attracting effect is formed: the red light forms a suitable illuminance area of 0.1 - 10 Lux within the range of 10 - 16.5 meters, guiding the fish school to gather near the surface layer below the hull; the blue light expands the fish attracting range and forms a depth trapping area. Experiments have proved that this design can reduce the escape rate of the fish school by more than 60% during the process of the purse seine sinking.

[0042] (3) Significantly enhanced adaptability to extreme environments: The bowl-shaped aluminum substrate is provided with an opening to facilitate seawater-assisted heat dissipation; combined with waterproof and anti-corrosion processes (anodic oxidation layer ≥ 15 μm + epoxy resin potting, Shore hardness ≥ 80 D), it effectively prevents salt spray erosion and underwater short circuits; the built-in temperature control switch (disconnection threshold 70℃ ± 2℃) ensures that the lamp can operate stably in seawater for a long time, and the failure rate is reduced by 85% compared with traditional lamps.

[0043] The superposition of the above technical effects enables the present invention to achieve a coordinated breakthrough in fish attracting depth, fish aggregating density and operation safety under the complex sea conditions in the South China Sea. The catch per single net haul is significantly improved compared with traditional metal halide lamps, providing core technical support for the efficient development of deep-sea fishery resources.

[0044] The above are only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An LED underwater fish aggregating lamp with a special spectrum, characterized in that Including: A bowl-shaped aluminum substrate (1) is provided with a cyan LED lamp bead (2) and a red LED lamp bead (3). The emission spectrum wavelength of the cyan LED lamp bead (2) is 490 nm, and the emission spectrum wavelength of the red LED lamp bead (3) is 660 nm. The LED light-emitting surface direction on the bowl-shaped aluminum substrate (1) faces downward to form a downward main light-emitting direction. A dimming control module (4) is provided on the bowl-shaped aluminum substrate (1) for adjusting the on-off sequence and brightness of the cyan LED and the red LED. The total power of the cyan LED is 1100W ± 10%, and the total power of the red LED is 900W ± 10%. The LED lamp beads are encapsulated on the bowl-shaped aluminum substrate (1) through a waterproof and anti-corrosion process.

2. The LED underwater fish aggregating lamp with a special spectrum according to claim 1, wherein A circular opening is provided below the bowl-shaped aluminum substrate (1), and the cyan LED lamp beads (2) and the red LED lamp beads (3) are evenly arranged along the circumference of the substrate.

3. The LED underwater fish aggregating lamp with a special spectrum according to claim 1, wherein The dimming control module (4) includes a temperature control switch (5). The disconnection temperature threshold of the temperature control switch (5) is 70°C ± 2°C, and the closing temperature threshold is 65°C ± 2°C.

4. The LED underwater fish aggregating lamp with a special spectrum according to claim 1, wherein The spectrum of the cyan LED lamp bead (2) is near the 490 nm band, and the spectrum of the red LED lamp bead (3) is near the 660 nm band.

5. The LED underwater fish aggregating lamp with a special spectrum according to claim 1, wherein The cyan light generated by the cyan LED lamp bead (2) can reach an effective irradiation depth of 40 - 50 meters in seawater, and the suitable illumination area of the red light generated by the red LED lamp bead (3) for general fish schools is 10 - 16.5 meters away from the lamp.

6. The LED underwater fish aggregating lamp with a special spectrum according to claim 1, wherein The waterproof and anti-corrosion process includes anodic oxidation treatment and epoxy resin potting. The thickness of the anodic oxidation layer is ≥ 15 μm, and the Shore hardness of the epoxy resin after curing is ≥ 80D.

7. The LED underwater fish aggregating lamp with a special spectrum according to claim 1, wherein The dimming control module (4) is also provided with a cyan LED current adjustment and a red LED current adjustment unit for respectively adjusting the brightness of the cyan LED and the red LED.

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