Observation device

Abstract

The utility model relates to an observation device, and belongs to the technical field of aquaculture. The observation device comprises a base, a netting gear in sliding fit with the base and a buoyancy device driving the netting gear to float. The netting gear comprises a net rack and a shell, the shell is located on the net rack, an opening is formed in the bottom of the shell, and a camera device is arranged in the shell; when the shell is underwater, the camera device is located above the liquid level. According to the scheme provided by the invention, the principle that the pressure intensity inside and outside the shell is balanced is utilized, the camera device can serve and work underwater for a long time on the basis that the camera device is not stained with water, and long-term real-time observation work underwater and on water is achieved.

Description

Technical Field

[0001] This application relates to the field of aquaculture technology, and in particular to an observation device. Background Technology

[0002] Accurately understanding the distribution, growth status, health status, and behavioral characteristics of aquatic animals has become a fundamental task in smart fisheries and precision aquaculture. In the shrimp farming industry, information such as shrimp growth status can be obtained regularly through manual sampling and underwater observation. However, manual sampling is limited by the frequency of operation, resulting in inefficiency and cumbersome procedures, making it difficult to achieve long-term regular observation. Underwater observation, on the other hand, requires equipment with high requirements for waterproofing and corrosion resistance, and the equipment is prone to algae growth, leading to high maintenance difficulties and image distortion. Utility Model Content

[0003] To overcome the problems existing in related technologies, this application provides an observation device that utilizes the principle of pressure balance inside and outside the shell to enable long-term underwater operation while keeping the camera device dry, thus achieving long-term real-time observation both underwater and above water.

[0004] This application provides an observation device, including a base, a net that slides with the base, and a buoyancy device that drives the net to float.

[0005] The net includes a net frame and a shell, with the shell located on top of the net frame. The bottom of the shell has an opening, and a camera device is installed inside the shell.

[0006] When the shell is underwater, the camera device is located above the liquid surface.

[0007] In the implementation of this application, under normal circumstances, the net and shell are located underwater, and the camera device can directly film the shrimp in the water. When the buoyancy device is in operation, the buoyancy device can provide buoyancy for the net to float and float on the water surface, which makes it easier to film the shrimp in the net after it leaves the water. This helps to improve the image quality of the shrimp and thus accurately obtain information such as the distribution, growth status, health status and behavioral characteristics of the shrimp.

[0008] In some embodiments, a heating device disposed within the housing is also included, the heating device having a heating element that generates heat energy when energized, the heating element being located above the liquid surface.

[0009] In the implementation of this application, a heating device is provided inside the housing. The heating element, which can generate heat energy, removes water mist from the lens of the camera device in a timely manner, thereby improving the image clarity of the camera device.

[0010] In some embodiments, the heating device further includes a temperature control switch and a temperature sensor;

[0011] The temperature control switch connects the heating element and the temperature sensor, and is used to control the power supply to and from the heating element.

[0012] The temperature sensor's probe faces the lens of the camera device and is used to detect the lens's temperature;

[0013] The heating element is a resistance wire, which is embedded in a ceramic tube and is spiral-shaped, surrounding the outer edge of the lens in the circumferential direction.

[0014] The heating device described above uses a temperature control switch to control the on / off state of the heating element based on temperature information fed back by a temperature sensor. The resistance wire surrounds the lens of the camera device, which effectively ensures that the heat from the resistance wire can be evenly radiated to the lens surface without interfering with the shooting path of the camera device, thus achieving rapid defogging.

[0015] In some embodiments, a transparent plate is also provided inside the housing, which divides the internal space of the housing into a sealed cavity and an open cavity, and the camera device is located inside the sealed cavity;

[0016] When the shell is underwater, the transparent plate is above the liquid surface.

[0017] In other words, the implementation of this application can prevent the risk of shrimp accidentally splashing water onto the lens of the camera device, ensuring that the lens of the camera device will not become locally dirty.

[0018] In some embodiments, a cleaning device is also included, comprising a water pump, a water tank, and water pipes. The inlet of the water pipes is connected to the water tank via the water pump, and the outlet of the water pipes faces the transparent panel and is connected to a nozzle. By rinsing the transparent panel with clean water through the water pump, water tank, and water pipes, the wastewater on the transparent panel can be rinsed and diluted, reducing the solid content of the wastewater. This allows the residue to evaporate completely, thus resolving the problem of residues leaving marks on the transparent panel.

[0019] In some embodiments, the space frame includes a frame, a sleeve, and a mesh panel;

[0020] The base includes a support pole;

[0021] The sleeve is vertically installed in the central area of ​​the frame, the uprights pass through the sleeve, the mesh is wrapped and fixed to the bottom and sides of the frame, and the shell is connected to the sleeve.

[0022] In some embodiments, the buoyancy device includes an air bladder, an air tube, and an air supply device;

[0023] The airbag is located on the bottom end face of the frame and is coaxial with the upright. The airbag is connected to the air supply device through an air pipe, and the air pipe is equipped with an electromagnetic valve to control the inflation and deflation of the airbag.

[0024] In some embodiments, the airbag is equipped with a pressure sensor for monitoring air pressure, or the housing is equipped with a water-off power-off switch for controlling the on / off of the air supply device.

[0025] In some embodiments, the gas supply device is connected to a gas delivery pipe, the outlet of which is located inside the housing.

[0026] In some embodiments, a supplementary light is provided at the bottom of the housing, and the illumination direction of the supplementary light is towards the mesh frame.

[0027] The technical solution provided in this application may include the following beneficial effects:

[0028] The observation device provided in this application is submerged in water under normal conditions. The net catches feed scattered on the pond surface and traps shrimp. It floats on the surface under the influence of a buoyancy device, enabling it to take pictures while out of the water. Due to the pressure balance inside and outside the shell, air is partially compressed and sealed inside when the shell is submerged, preventing the camera from getting wet and solving the problem of underwater observation equipment easily becoming dirty. This observation device replaces manual labor with machinery, enabling long-term, regular observation of shrimp distribution, growth, health, and behavioral characteristics underwater and in the water. It is easy to operate and convenient to use.

[0029] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0030] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0031] Figure 1 This is a schematic diagram of the observation device shown in Embodiment 1 of this application;

[0032] Figure 2 This is another schematic diagram of the observation device shown in Embodiment 1 of this application;

[0033] Figure 3 This is a schematic diagram of the observation device shown in Embodiment 2 of this application;

[0034] Figure 4 This is a schematic diagram of the observation device shown in Embodiment 3 of this application;

[0035] Figure 5 This is a schematic diagram of the space frame structure shown in Embodiment 4 of this application;

[0036] Figure 6This is a schematic diagram of the structure of the airbag shown in Embodiment 4 of this application.

[0037] Figure label:

[0038] 1. Base;

[0039] 2. Netting; 20. Net frame; 20a. Frame; 20b. Sleeve; 21. Shell; 22. Camera device; 23. Heating device; 24. Transparent plate;

[0040] 3. Buoyancy device; 30. Airbag; 31. Air tube;

[0041] 4. Cleaning equipment;

[0042] 100, liquid surface; 200, water surface; 300, floating platform. Detailed Implementation

[0043] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0044] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0045] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0046] In existing technologies, manual sampling is limited by the frequency of operation, resulting in inefficiency and cumbersome processes, making it difficult to achieve long-term, regular observations. Underwater observation, on the other hand, requires equipment with high waterproof and corrosion-resistant properties, and the equipment is prone to algae growth, leading to high maintenance difficulties and image distortion. Furthermore, observation equipment placed directly on the surface of ponds is limited by water quality, making it difficult to obtain clear underwater images.

[0047] To address the aforementioned issues, this application provides an observation device that utilizes the principle of pressure balance between the inside and outside of the housing 21 to enable long-term underwater operation while keeping the camera device 22 dry, thus achieving long-term real-time observation both underwater and above water.

[0048] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0049] Example 1

[0050] Figure 1 This is a schematic diagram of the observation device shown in Embodiment 1 of this application.

[0051] See Figure 1 An observation device provided in this application includes a base 1, a net 2 that slides with the base 1, and a buoyancy device 3 that drives the net 2 to float.

[0052] The net 2 includes a net frame 20 and a housing 21. The housing 21 is located on the net frame 20. The bottom of the housing 21 has an opening. A camera device 22 is installed inside the housing 21.

[0053] When the housing 21 is underwater, the camera device 22 is located above the liquid surface 100.

[0054] In shrimp farming, feed is usually given by hand or mechanical throwing. This observation device is set up in the area where the feed is thrown so that the thrown feed can fall onto the net frame 20. When the shrimp are hungry, they can actively swim to the net frame 20 to eat the feed.

[0055] The base 1 is used to fix the netting to the bottom of aquaculture sites such as ponds. The fixing method can be selected according to the geological conditions of the bottom; for example, the base 1 can be directly inserted into the bottom or a concrete pier can be poured at the bottom of the base 1. To ensure the structural strength and durability of the device, the base 1 can be made of stainless steel to ensure the stability of the support for the netting 2. The structure of the base 1 can be as follows: Figure 1 The single-pole structure shown or such Figure 2The multi-pole structure is shown. The shape of the poles can be selected as needed without affecting the sliding performance of the base 1 and the net 2. Specifically, when the base 1 is a single-pole structure, the single-pole structure is located at the center of the net frame 20, ensuring that the center of gravity of the net 2 and the axis of the single-pole structure are on the same straight line, preventing the net 2 from tilting during floating and sinking, and preventing air from escaping from the shell 21. The net frame 20 is provided with a sleeve 20b adapted to the single-pole structure, and the sleeve 20b is located at the center of the net frame 20. When the base 1 is a multi-pole structure, the multi-pole structures are distributed on the outer circumference of the net frame 20. In this case, a corresponding number of retaining rings can be set on the outer circumference of the net frame 20, and the multi-pole structures are respectively fitted onto the retaining rings. The net frame 20 is provided with a bracket for installing and fixing the shell 21.

[0056] It should be noted that the base 1 can also take other forms; for example, a columnar structure could also be used to achieve stable buoyancy and submersion of the net 2 underwater. Figure 1 and Figure 2 The base 1 shown should not be construed as the only implementation of the embodiments of this application.

[0057] The shape of the shell 21 can be selected as needed, for example, it can be spherical or rectangular. In some embodiments, the shell 21 can be made of stainless steel, aluminum alloy or black plastic. The shell 21 has a chamber with a bottom opening, in which the camera device 22 is located. The opening is opposite to the water surface 200 of the pond, and the end face of the opening can be parallel or not parallel to the horizontal plane. When the end face of the opening is inclined, the shooting angle of the camera device 22 can be tilted to one side, so that it can capture the front and side of the shrimp. The total average density of the mesh frame 20 and the shell 21 is greater than the density of water. This means that, in their normal configuration without the buoyancy device 3, the mesh frame 20 and shell 21 are submerged. The submerged shell 21 and the water together form a sealed cavity containing a certain volume of air. Under water pressure, the air in the sealed cavity is partially compressed, and water from the pond enters the shell 21, occupying part of the cavity and forming a liquid surface 100. At this point, the pressure inside and outside the shell 21 is in equilibrium. Based on the linear relationship between air pressure and water pressure, at a specific water depth, an air chamber still exists within the sealed cavity. Therefore, the camera device 22 located inside the shell 21 can be separated from the water, achieving the design goal of being watertight. In other words, there is a certain distance between the camera device 22 and the liquid surface 100 inside the housing 21. Therefore, the nutrient-rich water will not allow algae or other microorganisms to grow on the surface of the camera device. With this setup, both the cleanliness of the lens of the camera device 22 and the long-term underwater operation of the camera device 22 without failure can be guaranteed. For example, the water depth in shrimp farming sites such as ponds is generally in the range of 0.3 to 1.5 meters. When the housing 21 is located in this water depth range, the compressed air inside the housing 21 occupies 86.95% to 97.08% of the chamber volume. Therefore, those skilled in the art can realize the utility model concept of this application by ensuring that there is a certain distance between the lens of the camera device 22 and the liquid surface 100 inside the housing 21.

[0058] It is understandable that, under the interference of the external environment and the interference of the observation device, the water in aquaculture sites such as ponds will not be still. Therefore, the gap between the lens of the camera device 22 and the liquid surface 100 inside the housing 21 can be further increased based on the above.

[0059] It is understood that the camera device 22 in this embodiment can be a device with shooting function, such as a spherical camera, a bullet camera, a pinhole camera, and an underwater camera. Therefore, the distance between the housing 21 and the mesh frame 20 can be set according to the specific model of the camera device 22, and is not limited here. The camera device 22 can have its own wireless terminal device or use an external wireless terminal device to achieve interaction or information processing with the user. Specifically, after shooting, the camera device 22 sends the image to the wireless terminal device. The wireless terminal device has a program to analyze image and video information, send image and / or video information to the user terminal, and perform interactive functions. In some embodiments, the wireless terminal device can be housed in the housing 21, or a floating platform 300 can be set on the pond. The floating platform 300 is a sealed structure, and the wireless terminal device is placed in the floating platform 300. An antenna is set on the floating platform 300 to enhance the connection signal between the wireless terminal device and the camera device 22, the terminal, or the server. The wireless terminal device is electrically connected to the camera device 22 to realize the networking of the camera device 22. Therefore, the camera device 22 can upload the captured images and video information to the user terminal or server through a wireless terminal device, so that the user can browse the information data obtained by the camera device 22 anytime and anywhere, which is convenient for the user to analyze the current health information of the shrimp and make corresponding breeding strategies.

[0060] In some embodiments, the camera device 22 may have two or more cameras to capture images and / or videos from different angles and use the images and / or videos captured from different angles to identify the shrimp's swimming posture, activity, limbs, and other health conditions.

[0061] The observation device works as follows: The base 1 is fixed on the bottom of the water, and the net 2 sinks to the bottom of the water under its own weight. At this time, the camera device 22 inside the shell 21 can send control commands to the camera device 22 according to the preset program or the user through the wireless terminal device. The camera device 22 performs the shooting work, recording or taking pictures in the water to obtain images and / or videos of the water or shrimp. This allows the user to judge the current water quality color and the distribution, size and activity of the shrimp and other health information based on the images and / or videos.

[0062] The water in ponds is generally turbid. When filming shrimp underwater, the main focus is on observing their activity level, but it's difficult to obtain more detailed health information such as the shrimp's intestines and color through underwater filming. Therefore, based on the shrimp's feeding habits, for a period of time before and after feeding, the user controls or controls the buoyancy device 3 to float the net 2 on the water surface 200 according to a preset program to catch a certain number of shrimp. Then, the camera device 22 films the shrimp out of the water. In this setting, filming out of the water reduces the impact of water quality on the images and / or video. For example, the shrimp's health status includes, but is not limited to, the color and luster of the shrimp's shell, the fullness and color of the intestines, the color of the gills, whether the shrimp's limbs are missing, the fullness of the intestines, the color of the gills, and the color of the liver.

[0063] Based on the above specific implementation, in order to improve the monitoring capability of the pond, a water quality monitoring component can also be installed inside the shell 21 to monitor the pH value, dissolved oxygen, ammonia nitrogen concentration and water temperature of the water, such as a pH meter, dissolved oxygen meter, nitrogen oxygen analyzer and temperature sensor, so as to achieve more precise aquaculture work through the above water quality detection component.

[0064] It is understandable that after images and / or videos are sent to the wireless terminal device, the wireless terminal device can also parse the images and / or videos, parse and generate corresponding processing information, send warning information to the user, and inform the user to take timely action.

[0065] In summary, the observation device provided in this application has two operating modes: dynamic underwater imaging and static surface imaging. Underwater imaging allows for direct observation of shrimp swimming activity, individual size, water color, and turbidity. Surface imaging allows for direct observation of remaining feed on the net frame 20, as well as the shrimp's intestinal condition, appearance, color, and limbs. Furthermore, compared to existing observation equipment, the device provided in this application can operate underwater for extended periods under normal conditions, avoiding damage from typhoons or human interference.

[0066] Example 2

[0067] To achieve higher image quality for the camera device 22 described in Embodiment 1 and prevent water evaporation from condensing into mist on the surface of the camera device 22, thus affecting its image capture, Embodiment 2 of this application also incorporates a corresponding structure. Based on Embodiment 1, and referring to point 3, the observation device of Embodiment 2 further includes a heating device 23 housed within the casing 21. The heating device 23 has a heating element that generates heat when energized, and the heating element is positioned above the liquid surface 100. In practical implementation, for example, when the casing 21 is underwater, the heating device 23 is activated 5 minutes before image capture to utilize the heat from the heating element to dry the mist at the lens, ensuring the image capture quality of the camera device 22.

[0068] Furthermore, the heating device 23 also includes a temperature control switch and a temperature sensor;

[0069] The temperature control switch connects the heating element and the temperature sensor, and is used to control the power supply to and from the heating element.

[0070] The sensing end of the temperature sensor faces the lens of the camera device 22 and is used to detect the temperature of the lens;

[0071] The heating element is a resistance wire, which is embedded in a ceramic tube and is spiral-shaped, surrounding the outer edge of the lens in the circumferential direction.

[0072] In this embodiment, under the premise of ensuring that the camera device 22 is not wet and does not affect the shooting operation of the camera device 22, the position of the resistance wire should be as close as possible to the lens of the camera device 22. The resistance wire is coaxial with the lens and surrounds the outer periphery of the lens to ensure that the lens can be heated evenly, so that the water mist at the lens can be heated and dried at a relatively fast speed.

[0073] The shape of the resistance wire can be selected as needed, such as a ring or a spiral. The resistance wire is embedded in a ceramic tube to prevent moisture from damaging the resistance wire and causing rust. In this embodiment, the resistance wire is spiral and surrounds the lens in the circumferential direction. It can be imagined that the resistance wire is set opposite to the lens or surrounds the camera device 22 like a spiral spring. The middle part of the resistance wire is the shooting area of ​​the camera device 22.

[0074] The temperature control switch can be located inside the housing 21 or integrated into the wireless terminal device. Similar to the setting of the resistance wire, without affecting the working performance of the camera device 22, the temperature sensor should be located as close as possible to the lens of the camera device 22 to obtain the most accurate temperature information and avoid overheating failure of the camera device 22.

[0075] The heating element, temperature sensor, and temperature control switch are all powered by a power source, which can be mains power or the internal power source of the observation device. In some embodiments, the internal power source can also consist of photovoltaic panels and energy storage batteries. The photovoltaic panels are laid around the pond to achieve a self-circulating energy supply.

[0076] Understandably, other structures could also be used to determine the presence of water mist on the lens. For example, before acquiring images of shrimp, the camera device 22 could enter a pre-detection shooting mode, comparing the captured images with standard images free of water mist to analyze the presence of water mist. Then, the heating element could be controlled via a wireless terminal device to dry the water mist on the lens. After the heating device 23 has been running for a period of time, the pre-detection process could be repeated, comparing the image information again to determine the water mist condition on the lens. If no water mist is found, normal observation mode could be initiated.

[0077] In addition, the heating device 23 may also include a fan and a housing, the fan being mounted on the housing, the housing having an air outlet, the aforementioned heating element being disposed inside the air outlet, and the air outlet facing the lens of the camera device 22.

[0078] In summary, by providing a heating device 23 inside the housing 21, fogging of the lens of the camera device 22 can be prevented, thereby improving the clarity of the images captured by the camera device 22.

[0079] Example 3

[0080] In practical applications, shrimp swimming in ponds often leap out of the water (200°). When swimming near the opening of their shells (21), they easily splash water onto the camera device (22). Since the pond water is often murky, this water can leave residue on the lens, causing it to become dirty. Therefore, to avoid this situation, based on Embodiments 1 and 2, please refer to... Figure 4 In the observation device of embodiment 3 of this application, a transparent plate 24 is also provided inside the housing 21. The transparent plate 24 divides the internal space of the housing 21 into a sealed cavity and an open cavity, and the camera device 22 is located inside the sealed cavity.

[0081] When the shell 21 is underwater, the transparent plate 24 is located above the liquid surface 100.

[0082] Furthermore, the above-mentioned observation device also includes a cleaning device 4, which includes a water pump, a water tank, and a water pipe. The water inlet of the water pipe is connected to the water tank through the water pump, and the water outlet of the water pipe faces the transparent plate 24.

[0083] Example 4

[0084] To improve the stability and rapid response of the observation devices described in Examples 1 to 3, please refer to Examples 1 to 3 above. Figure 5and Figure 6 The space frame 20 in Embodiment 4 of this application includes a frame 20a, a sleeve 20b, and a mesh panel;

[0085] The base 1 includes a vertical pole;

[0086] The sleeve 20b is vertically installed in the central area of ​​the frame 20a, the uprights pass through the sleeve 20b, the mesh is wrapped and fixed on the bottom and sides of the frame 20a, and the shell 21 is connected to the sleeve 20b.

[0087] Specifically, frame 20a includes a first steel ring, a second steel ring, and steel bars that connect and fix the first and second steel rings respectively. The first and second steel rings are placed horizontally. The mesh is made of nylon woven mesh, which encloses the first and second steel rings to form a cylinder with an open top, allowing feed to be placed on the mesh without leakage. The first steel ring is on top, and the second steel ring is on the bottom. The second steel ring also has at least two staggered supports. Sleeve 20b is vertically installed on the supports, and the supports have through holes that fit the sleeve 20b. A vertical pole passes through the sleeve 20b.

[0088] Furthermore, the aforementioned buoyancy device 3 includes an airbag 30, an air tube 31, and an air supply device;

[0089] The airbag 30 is disposed on the bottom end face of the frame 20a and is coaxial with the upright. The airbag 30 is connected to the air supply device through the air pipe 31. The air pipe 31 is equipped with an electromagnetic air valve for controlling the inflation and deflation of the airbag 30.

[0090] Specifically, the air supply device can be selected as needed, for example, a miniature air pump, which is installed inside the floating platform 300. The shape of the airbag 30 can be selected as needed, for example, a ring or annular shape. When arranging the airbag 30, it should be ensured that the buoyancy provided by the airbag 30 and the center of gravity of the net 2 are on the same straight line. This arrangement allows the airbag 30 to maintain stable rise and fall during inflation and deflation, ensuring that the center of gravity of the net 2 and the center of buoyancy are on the same straight line, thus preventing the net 2 from tilting and causing air leakage into the shell 21. During use, inflating and deflating the airbag 30 through the air supply device can change the supporting buoyancy of the net 2, allowing the camera device 22 to capture clearer images or video information in the water, overcoming the disadvantage that the camera device 22 cannot obtain clear images when shooting water from the water surface 200 due to water quality or excessive distance.

[0091] The observation device provided in this application is submerged in water for a long time under normal conditions, and can realize dynamic observation underwater. The air supply device delivers gas to the air bag 30 through the air pipe 31 to provide sufficient buoyancy to drive the net 2 to float to the surface 200 of the pond, so that the observation device floats on the surface 200 and realizes static observation.

[0092] Furthermore, the airbag 30 is equipped with a pressure sensor for monitoring air pressure, or the housing 21 is equipped with a water-removal power-off switch for controlling the on / off of the air supply device. When the air supply device inflates the airbag 30, the pressure sensor on the airbag 30 can be used as the timing for determining the inflation stoppage, so as to avoid the risk of over-inflation leading to the explosion of the airbag 30. Alternatively, a water-removal power-off switch can be installed in the housing 21, which is located below the liquid surface 100. During the inflation process, the airbag 30 provides buoyancy to the net 2, causing the net 2 to float. The housing 21 is exposed above the water surface 200 before the net frame 20. Therefore, when the housing 21 is exposed above the water surface 200, the water-removal power-off switch can shut off the air supply device to prevent the airbag 30 from over-inflating.

[0093] Furthermore, the aforementioned gas supply device is connected to a gas delivery pipe, the outlet of which is located inside the housing 21. When the housing 21 is submerged in water for an extended period, oxygen from the air inside inevitably dissolves in the water, causing a decrease in gas pressure and a rise in water level within the housing 21. Therefore, to address this problem, the gas supply device, through a connected gas delivery pipe, periodically supplies a certain amount of air into the housing 21 to ensure that the water level inside the housing 21 is maintained at a relatively low level.

[0094] In addition, a water level sensor can be installed inside the housing 21. The water level sensor is located between the set liquid level 100 and the heating element in the housing 21. When the observation device tilts or oxygen dissolves in the water, causing the air pressure to drop and the water level to rise, the water level sensor can send water level information to the wireless terminal device when it senses water. The wireless terminal device controls the air supply device to supplement a certain volume of air into the housing 21 through the air supply pipe, so as to ensure that the liquid level 100 in the housing 21 is below the camera device 22 and the heating element.

[0095] Furthermore, a supplementary light is provided at the bottom of the aforementioned housing 21, and the illumination direction of the supplementary light is towards the mesh frame 20. The shape of the supplementary light can be selected as needed, for example, it can be circular, annular, or rectangular. The center of the supplementary light is provided with a through hole for the camera device 22 to pass through when taking pictures. The diameter of the through hole is larger than the opening of the housing 21. The supplementary light contains multiple LED beads and lenses fastened to the LED beads. The lenses are used to adjust the light intensity of the LED beads and the supplementary lighting angle of the LED beads. The supplementary lighting area of ​​the multiple LED beads is adapted to the mesh frame 20. When the camera device 22 is taking pictures, the wireless terminal device can activate the supplementary light to provide supplementary lighting for the camera device 22.

[0096] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An observation device, characterized in that, Includes a base, a net that slides with the base, and a buoyancy device that makes the net float. The net includes a net frame and a shell, with the shell located on top of the net frame. The bottom of the shell has an opening, and a camera device is installed inside the shell. The space frame includes a frame, sleeves, and mesh panels; The base includes a support pole; The sleeve is vertically installed in the central area of ​​the frame, the uprights pass through the sleeve, the mesh is wrapped and fixed to the bottom and sides of the frame, and the shell is connected to the sleeve. The buoyancy device includes an air bladder, an air tube, and an air supply device; The airbag is set on the bottom end face of the frame and is coaxial with the upright. The airbag is connected to the air supply device through an air pipe. The air pipe is equipped with an electromagnetic air valve to control the inflation and deflation of the airbag. When the shell is underwater, the camera device is located above the liquid surface.

2. The observation device according to claim 1, characterized in that, It also includes a heating device disposed within the housing, the heating device having a heating element that generates heat energy when energized, the heating element being located above the liquid surface.

3. The observation device according to claim 2, characterized in that, The heating device also includes a temperature control switch and a temperature sensor; The temperature control switch connects the heating element and the temperature sensor, and is used to control the power supply to and from the heating element. The temperature sensor's probe faces the lens of the camera device and is used to detect the lens's temperature; The heating element is a resistance wire, which is embedded in a ceramic tube and is spiral-shaped, surrounding the outer edge of the lens in the circumferential direction.

4. The observation device according to claim 1, characterized in that, The housing is also provided with a transparent plate, which divides the internal space of the housing into a sealed cavity and an open cavity, and the camera device is located in the sealed cavity; When the shell is underwater, the transparent plate is above the liquid surface.

5. The observation device according to claim 4, characterized in that, It also includes a cleaning device, which includes a water pump, a water tank, and a water pipe. The water inlet of the water pipe is connected to the water tank through the water pump, and the water outlet of the water pipe faces the transparent plate and is connected to a nozzle.

6. The observation device according to claim 1, characterized in that, The airbag is equipped with a pressure sensor for monitoring air pressure, or the housing is equipped with a water-off power-off switch to control the on / off of the air supply device.

7. The observation device according to claim 6, characterized in that, The gas supply device is connected to a gas delivery pipe, and the gas outlet of the gas delivery pipe is located inside the housing.

8. The observation device according to claim 7, characterized in that, The bottom of the housing is equipped with a supplementary light, and the illumination direction of the supplementary light is towards the mesh frame.

Images