A device for investigating the food sources of relict gulls

Abstract

The present invention belongs to the field of animal ecological investigation, and specifically relates to a food source investigation device for relict gulls, comprising a plurality of cameras and a 5G module for transmitting camera signals, wherein the camera comprises a feeding assembly and a float, a plurality of traction ropes are connected between the feeding assembly and the float, the feeding assembly comprises a bottom net and a ring net fixedly arranged around the bottom net, the bottom net is circular, the ring net corresponds to the float, the float comprises a floating ring, a box body and a plurality of air bags are installed on the floating ring, a waterproof photovoltaic panel is fixedly installed on the upper surface of the air bag, a battery is installed in the box body, the 5G module is arranged in the box body, a plurality of the cameras are all penetrated on the box body and electrically connected to the battery, the battery is connected to the waterproof photovoltaic panel, and is used to solve the problem that the current method used to investigate relict gulls is mostly to observe from a distance through a telescope, or to bury a camera in a habitat, and it is impossible to observe the feeding situation of the relict gulls at close range, and the accuracy is low.

Description

Technical Field

[0001] The invention belongs to the field of animal ecological investigation, and in particular relates to a food source investigation device for relict gulls. Background Art

[0002] The relict gull (scientific name: Larus relictus) is an endangered migratory bird of the Laridae family, a medium-sized waterfowl with a body length of about 40 cm. In order to protect this rare species, the International Bird Conservation Committee has listed it in the Red List of Endangered Species of the World, and China has listed it as a national first-class protected animal.

[0003] In order to better protect the relict gull, investigating food availability is an important part of the relict gull research, and it also provides a scientific basis for the protection of the relict gull. The food source of the relict gull depends on the food availability in the local environment. However, the current data on the availability of bird food is still limited by the method. At present, the methods used to investigate the relict gull are mostly long-distance observation with a telescope, or buried in the habitat. It is impossible to observe the relict gull's feeding situation at close range, and the accuracy is low. Summary of the invention

[0004] Based on the problems mentioned in the above background technology, the present invention provides a food source investigation device for the relict gull, which is used to solve the problem that the current methods used to investigate the relict gulls are mostly long-distance observation through telescopes, or buried camera devices in the habitat, which makes it impossible to observe the feeding situation of the relict gulls at close range and has low accuracy.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A device for investigating the food sources of relict gulls comprises a plurality of cameras and a 5G module for transmitting camera signals, wherein the camera comprises a feeding assembly and a float, a plurality of traction ropes are connected between the feeding assembly and the float, the feeding assembly comprises a bottom net and a ring net fixedly arranged around the bottom net, the bottom net is circular, the ring net corresponds to the float, the float comprises a floating ring, a box body and a plurality of air bags are mounted on the floating ring, a waterproof photovoltaic panel is fixedly mounted on the upper surface of the air bag, a battery is mounted in the box body, the 5G module is arranged in the box body, a plurality of the cameras are all penetrated through the box body and electrically connected to the battery, and the battery is connected to the waterproof photovoltaic panel.

[0007] On the basis of the above technical solution, the present invention also makes the following improvements:

[0008] Furthermore, a plurality of planting boxes for planting water plants are installed on the floating ring, and the planting boxes and air bags are intermittently arranged on the floating ring. By planting water plants in the planting box, plankton in the water is attracted to gather, thereby attracting other organisms that feed on plankton to approach, so as to improve the predation effect.

[0009] Furthermore, the planting box includes a water collection box and a planting frame, the planting frame is installed on the water collection box, and a slot is provided on the planting frame. Water can enter the water collection box through the planting frame, and when the water level drops and the floating body falls on the predator assembly and separates from the water body, some water remains in the water collection box for the growth of water plants. The water collection box is tilted, and water can flow into the water collection box when the floating body floats on the water surface.

[0010] Furthermore, a coiling spring take-up device corresponding to the traction rope is installed on the bottom net, one end of the traction rope is fixed on the floating ring, and the other end is connected to the coiling spring take-up device, the coiling spring take-up device includes an outer shell and a winding wheel arranged in the outer shell, a coiling spring is arranged between the winding wheel and the outer shell, and one end of the traction rope is fixed on the winding wheel. When the water level drops and the floating body falls, the traction rope is wound by the coiling spring take-up device to pull the floating body, so that the floating body can fall onto the ring net.

[0011] Furthermore, the hoop net includes a plurality of unit columns fixed to the bottom net and keel rings for the unit columns, the unit columns are fixed by the keel rings to prevent the spacing between the unit columns from changing, and the middle parts of the unit columns are bent toward the middle part of the bottom net. The upper part of the hoop net is conical, and water invertebrates are more easily washed into the predator assembly under the action of waves.

[0012] Furthermore, one end of the unit column is an arc-shaped structure, and the end of the unit column is downward. When the invertebrate captured in the hoop crawls along the unit column to the end, the area of ​​the force point is small, and the animal crawling along the unit column falls back into the hoop with the help of water waves.

[0013] Furthermore, the bottom net includes a base ring and a filter net, the filter net is located above the base ring, and a cone ring is connected between the filter net and the base ring. When the predator assembly is placed on the bottom mud and sand, the filter net is higher than the mud and sand layer, which can prevent the mud and sand from submerging the captured animals on the filter net, so that the camera can better capture the captured animals.

[0014] Furthermore, a plurality of connecting ports are provided on the cone ring, and the mud and sand below the filter screen can be moved along with the water flow by providing the connecting ports, thereby preventing the mud and sand from being accumulated in large quantities below the filter screen.

[0015] Beneficial effects of the present invention:

[0016] When used in wintering grounds with tides, various creatures are captured into the feeding assembly through the rise and fall of the tides. The captured objects can be recorded through the camera. At the same time, the feeding situation of the relict gull can be recorded at close range. At the same time, the underwater information during the feeding process can be photographed, so as to better understand the feeding habits of the relict gull with high accuracy.

[0017] When used in habitats without tides, the floating towing feeding assembly is suspended close to the water surface, with the bottom net simulating shallows for the relict gulls to stop and feed on insect larvae in the water. The footage is recorded at close range by cameras for research reference. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0019] Figure 1 This is a schematic diagram of the structure of a food source investigation device for relict gulls in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of a planting box in an embodiment of the present invention;

[0021] Figure 3 Schematic diagram of the connection structure of the winding spring take-up device in the embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of the longitudinal structure of the food source investigation device for the relict gull in the embodiment of the present invention;

[0023] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 6 Schematic diagram of the longitudinal structure of the predator assembly in an embodiment of the present invention;

[0025] Figure 7 for Figure 6 A schematic diagram of the enlarged structure at B in the middle;

[0026] The main component symbols are described as follows:

[0027] Predator assembly 1, bottom net 12, filter screen 121, base ring 122, connecting port 123, unit column 13, arc structure 131, keel ring 132, float 2, float ring 21, box body 22, planting box 4, water collection box 41, planting frame 42, traction rope 5, spring take-up device 6, outer shell 61, and reel 62. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figures 1 to 7As shown, a food source investigation device for a relict gull includes multiple cameras 7 and a 5G module for transmitting signals from the camera 7. The camera 7 includes a predator assembly 1 and a floating body 2. Multiple traction ropes 5 are connected between the predator assembly 1 and the floating body 2. The traction ropes 5 are evenly spaced and distributed on the floating body 2. The predator assembly 1 includes a bottom net 12 and a ring net fixedly arranged around the bottom net 12. The bottom net 12 is circular so that the floating body 2 can better correspond to the ring net. The floating body 2 includes a floating ring 21. A box body 22 and multiple airbags 3 are installed on the circle 21. A waterproof photovoltaic panel 31 is fixedly installed on the upper surface of the airbag 3. A battery is installed in the box body 22, and the battery is connected to the waterproof photovoltaic panel 31. When the airbag 3 floats on the water, the waterproof photovoltaic panel 31 converts solar energy into energy and stores it in the battery. The 5G module is arranged in the box body 22. Multiple cameras 7 are all installed on the box body 22 and electrically connected to the battery. The camera 7 and the box body 22 are waterproofed to prevent water from entering the box body 22.

[0030] Specifically, a plurality of planting boxes 4 for planting water plants are installed on the floating ring 21, and the planting boxes 4 and the air bags 3 are intermittently arranged on the floating ring 21. By planting water plants in the planting boxes 4, the aquatic plankton is attracted to gather, thereby attracting other organisms that feed on plankton to approach, so as to increase the biological density around the food source investigation device, thereby facilitating the relict gulls to prey.

[0031] Specifically, the planting box 4 includes a water collecting box 41 and a planting frame 42. The planting frame 42 is installed on the water collecting box 41. A slot is opened on the planting frame 42. Water can enter the water collecting box 41 through the planting frame 42. When the water level drops, the floating body 2 falls on the predator component 1 and separates from the water body. Some water remains in the water collecting box 41 to provide water for the growth of plants. The water collecting box 41 is tilted, and water can flow into the water collecting box 41 when the floating body 2 floats on the water surface.

[0032] Specifically, a spring take-up device 6 corresponding to the traction rope 5 is installed on the bottom net 12, one end of the traction rope 5 is fixed on the floating ring 21, and the other end is connected to the spring take-up device 6, the spring take-up device 6 includes an outer shell 61 and a winding wheel 62 arranged in the outer shell 61, a winding spring is arranged between the winding wheel 62 and the outer shell 61, and one end of the traction rope 5 is fixed on the winding wheel 62. When the water level drops and the floating body 2 falls, the traction rope 5 is wound by the spring take-up device 6 to pull the floating body 2, so that the floating body 2 can fall onto the ring net.

[0033] Specifically, the hoop net includes a plurality of unit columns 13 fixed on the bottom net 12 and a keel ring 132 for the unit columns 13. The unit columns 13 are fixed by the keel ring 132 to prevent the spacing between the unit columns 13 from changing. The middle parts of the unit columns 13 are bent toward the middle part of the bottom net 12, and the upper part of the hoop net is conical. Under the action of waves, water invertebrates are more easily washed into the predator assembly 1; one end of the unit column 13 is an arc structure 131, and the end of the unit column 13 is downward. When the invertebrates captured in the hoop net crawl along the unit column 13 to the end, the fulcrum area is small, and the animals crawling along the unit column 13 fall back into the hoop net with the help of water waves.

[0034] Specifically, the bottom net 12 includes a base ring 122 and a filter 121. The filter 121 is located above the base ring 122, and a cone ring is connected between the filter 121 and the base ring 122. When the predator assembly 1 is placed on the bottom mud and sand, the filter 121 is higher than the mud and sand layer, which can prevent the mud and sand from submerging the captured animals on the filter 121, so that the camera 7 can better shoot the captured animals; a plurality of connecting ports 123 are provided on the cone ring. By providing the rear connecting ports 123, the mud and sand below the filter 121 can be moved with the water flow, thereby preventing a large amount of mud and sand from accumulating below the filter 121.

[0035] When used in the habitat of the relict gull, since the environment is mostly wetlands or lakes, there is no obvious tidal change in the water body, and the bottom net 12 does not contact the bottom land. Under the action of the airbag 3, the floating body 2 floats on the water surface, and the bottom net 12 is suspended near the water surface by a traction rope. At the same time, a stone layer is laid on the bottom net 12 to simulate a shallow beach; water plants are planted on the planting frame 42 to attract insect larvae in the water body, such as damselfly larvae, chironomid larvae, etc. When the relict gull is foraging, the camera 7 records the predation of the relict gull at close range. Since the bottom net 12 is in a long-term suspended state, the traction rope 5 can be used to directly connect the floating ring 21 and the bottom net 12 without setting a winding spring line take-up device.

[0036] When used in a wintering ground with tides, the predator assembly 1 is placed on the beach. When the tide is high, the water flow drives the float 2 to separate from the predator assembly 1. The planting frame 42 is planted with water plants. The water plants attract plankton to increase the biological density around the predator assembly 1. The bottom invertebrates can crawl into the predator assembly 1 along the circle net and then be captured. Under the impact of the waves, the mud and sand on the filter 121 are washed away, so that the organisms on the surface of the filter 121 are exposed to the camera 7. When the tide is low, the float 2 drops and lands on the circle net. The camera 7 is close to the filter 121 to better shoot the captured food, and at the same time, the information of the relict gull feeding can be shot at close range, so as to better understand the feeding habits of the relict gull.

[0037] The above is a detailed introduction to a food source investigation device for relict gulls provided by the present invention. The description of the specific embodiment is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A device for investigating the food sources of relict gulls, comprising a plurality of cameras (7) and a 5G module for transmitting camera (7) signals, wherein the cameras (7) are characterized in that: The invention comprises a predator assembly (1) and a floating body (2), wherein a plurality of traction ropes (5) are connected between the predator assembly (1) and the floating body (2), the predator assembly (1) comprises a bottom net (12) and a ring net fixedly arranged around the bottom net (12), the bottom net (12) is circular, the ring net corresponds to the floating body (2), the floating body (2) comprises a floating ring (21), a box body (22) and a plurality of air bags (3) are installed on the floating ring (21), a waterproof photovoltaic panel (31) is fixedly installed on the upper surface of the air bag (3), a battery is installed in the box body (22), the 5G module is arranged in the box body (22), the plurality of cameras (7) are all inserted into the box body (22) and electrically connected to the battery, the battery is connected to the waterproof photovoltaic panel (31), the bottom net (1) 2) is provided with a coiled spring take-up device (6) corresponding to a traction rope (5), one end of the traction rope (5) is fixed on a floating ring (21), and the other end is connected to the coiled spring take-up device (6), the coiled net comprises a plurality of unit columns (13) fixed on a bottom net (12) and a keel ring (132) for the unit columns (13), the middle parts of the unit columns (13) are all bent toward the middle part of the bottom net (12), one end of the unit columns (13) is an arc structure (131), and the end of the unit columns (13) is downward, the bottom net (12) comprises a base ring (122) and a filter screen (121), the filter screen (121) is located above the base ring (122), and a cone ring is connected between the filter screen (121) and the base ring (122), and a plurality of connecting openings (123) are opened on the cone ring.

2. According to claim 1, a food source investigation device for relict gulls is characterized by: A plurality of planting boxes (4) for planting water plants are installed on the floating ring (21), and the planting boxes (4) and the air bags (3) are intermittently arranged on the floating ring (21).

3. The food source investigation device for relict gulls according to claim 2, characterized in that: The planting box (4) comprises a water collecting box (41) and a planting frame (42); the planting frame (42) is mounted on the water collecting box (41); and a card slot is provided on the planting frame (42).

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