Observation device

Abstract

The present application is about an observation device, belonging to the field of aquaculture technology. The observation device includes a base, a net that slides with the base, and a buoyancy device that drives the net to float; the net includes a frame and a shell, the shell is located on the frame, the bottom of the shell is provided with an opening, and a camera device is provided in the shell; wherein, when the shell is underwater, the camera device is located above the liquid surface. The solution provided by the present application utilizes the principle of pressure balance inside and outside the shell, and can work underwater for a long time without getting the camera device wet, thereby realizing long-term real-time observation work underwater and above water.

Description

Technical Field

[0001] The present application relates to the technical field of aquaculture, and in particular to an observation device. Background Art

[0002] Accurately understanding the distribution, growth, health and behavioral characteristics of aquatic animals has become a basic task for smart fisheries and precision farming. In the shrimp farming industry, information such as the growth status of shrimp can be obtained regularly through manual sampling and underwater observation. However, manual sampling is limited by the frequency of operation, and has the defects of inefficiency and cumbersomeness, making it difficult to achieve long-term regular observation. Underwater observation has high requirements for the waterproofness and corrosion resistance of the equipment, and the equipment is prone to algae growth, which is difficult to maintain and distorted in shooting. Summary of the invention

[0003] In order to overcome the problems existing in the related technology, the present application provides an observation device, which utilizes the principle of pressure balance inside and outside the shell, and can serve for a long time underwater without getting the camera device wet, thereby realizing long-term real-time observation work underwater and above water.

[0004] The present application provides an observation device, including a base, a net slidably matched with the base, and a buoyancy device for driving the net to float;

[0005] The net comprises a net frame and a shell, wherein the shell is located on the net frame, an opening is provided at the bottom of the shell, and a camera device is provided inside the shell;

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

[0007] That is, in the implementation method of the present application, under normal conditions, the net and the shell are located underwater, and the camera device can directly shoot the shrimps in the water body underwater; when the buoyancy device is in operation, the buoyancy device can provide the net with buoyancy to float on the water surface, which is convenient for shooting the shrimps in the net frame out of water, which helps to improve the image quality of the shrimps, and further can accurately obtain information such as the distribution, growth status, health status and behavioral characteristics of the shrimps.

[0008] In some embodiments, the invention further comprises a heating device disposed in the shell, wherein the heating device has a heating element that generates heat energy when powered on, and the heating element is located above the liquid surface.

[0009] That is, in the implementation of the present application, a heating device is arranged in the shell, and the water mist at the lens of the camera device is removed in time by a heating element that can generate heat energy, thereby improving the camera clarity of the camera device.

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

[0011] The temperature control switch is connected to the heating element and the temperature sensor, and is used to control the power on and off of the heating element;

[0012] The detection end of the temperature sensor faces the lens of the camera device and is used to detect the temperature of the lens;

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

[0014] In the above-mentioned heating device, the temperature control switch controls the on and off of the heating element according to the temperature information fed back by the temperature sensor. The resistance wire surrounds the lens of the camera device, that is, without interfering with the shooting path of the camera device, it effectively ensures that the heat of the resistance wire can be evenly radiated to the lens surface to achieve rapid defog.

[0015] In some embodiments, a transparent plate is further provided in the housing, and the transparent plate 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;

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

[0017] That is, in the implementation of the present application, the risk of shrimp accidentally splashing water onto the lens of the camera device can be prevented, ensuring that the lens of the camera device will not be locally dirty.

[0018] In some embodiments, a cleaning device is further included, the cleaning device including a water pump, a water tank and a water pipe, the water inlet end of the water pipe is connected to the water tank through the water pump, and the water outlet end of the water pipe faces the transparent plate and is connected to a nozzle. The transparent plate is rinsed with clean water through the water pump, the water tank and the water pipe, so that the sewage on the transparent plate can be rinsed and diluted, and the solidified matter content of the sewage can be reduced, so that after the sewage is completely evaporated, the problem of residues forming marks on the transparent plate can be solved.

[0019] In some embodiments, the grid comprises a frame, a sleeve and a mesh;

[0020] The base includes a vertical pole;

[0021] The sleeve is vertically arranged in the central area of ​​the frame, the vertical pole is passed through the sleeve, the mesh is wrapped and fixed on the bottom and side of the frame, and the shell is connected to the sleeve.

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

[0023] The airbag is arranged on the bottom end surface of the frame and is coaxial with the vertical pole. The airbag is connected to the air supply device through an air pipe. The air pipe is provided with an electromagnetic air valve for controlling the inflation and deflation of the airbag.

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

[0025] In some embodiments, the gas supply device is connected to a gas pipe, and the gas outlet of the gas pipe is located in the shell.

[0026] In some embodiments, a fill light is provided at the bottom of the shell, and the irradiation direction of the fill light is toward the grid frame.

[0027] The technical solution provided by this application may have the following beneficial effects:

[0028] The observation device provided by the present application is submerged in water under normal conditions. The net has the function of receiving feed scattered on the pond and catching shrimps. Driven by the buoyancy device, it floats on the water surface to achieve out-of-water shooting. Under the action of the pressure balance inside and outside the shell, when the shell enters the water, the air is partially compressed and sealed in the shell, so that the purpose of keeping the camera device out of water is achieved, and the problem that underwater observation equipment is easily dirty in water is solved. The observation device replaces manual labor with machinery, and can conduct real-time observation of the distribution, growth status, health status and behavioral characteristics of shrimps underwater and in water for a long time and regularly, and has the characteristics of easy operation and convenient use.

[0029] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0031] Figure 1 is a schematic diagram of the structure of the observation device shown in Example 1 of the present application;

[0032] Figure 2 is another structural schematic diagram of the observation device shown in Example 1 of the present application;

[0033] Figure 3 is a schematic diagram of the structure of the observation device shown in Example 2 of the present application;

[0034] Figure 4 is a schematic diagram of the structure of the observation device shown in Example 3 of the present application;

[0035] Figure 5 is a schematic diagram of the structure of the grid shown in Example 4 of the present application;

[0036] Figure 6It is a schematic diagram of the structure of the airbag shown in Example 4 of the present application.

[0037] Reference numerals:

[0038] 1. Base;

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

[0040] 3. buoyancy device; 30. air bag; 31. trachea;

[0041] 4. Cleaning device;

[0042] 100, liquid level; 200, water surface; 300, floating platform. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, 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 terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more 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 the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0046] In the existing technology, manual sampling is limited by the frequency of operation, and has the defects of being inefficient and cumbersome, making it difficult to achieve long-term regular observation. Underwater observation requires high waterproofness and corrosion resistance of the equipment, and the equipment is prone to algae, which makes maintenance difficult and distorted. In addition, the observation equipment placed directly on the surface of the pond is limited by water quality issues and it is difficult to obtain clear underwater images.

[0047] In response to the above problems, the present application provides an observation device, which utilizes the principle of pressure balance inside and outside the shell 21, and can serve for a long time underwater without getting the camera device 22 wet, thereby realizing long-term real-time observation work underwater and above water.

[0048] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0049] Example 1

[0050] Figure 1 It is a schematic diagram of the structure of the observation device shown in Example 1 of the present application.

[0051] See also Figure 1 , an observation device provided in an embodiment of the present application comprises a base 1, a net 2 slidably matched with the base 1, and a buoyancy device 3 driving the net 2 to float;

[0052] The net 2 comprises a net frame 20 and a shell 21, wherein the shell 21 is located on the net frame 20, an opening is provided at the bottom of the shell 21, and a camera device 22 is provided inside the shell 21;

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

[0054] In the field of shrimp farming, feed is generally fed by manual or mechanical scattering. The observation device is arranged in the area where the feed is scattered, so that the scattered feed can fall onto the net frame 20, and the shrimp can actively swim to the net frame 20 to eat the feed when they are hungry.

[0055] The base 1 is used to be fixed on the bottom of a pond or other aquaculture site. The fixing method can be selected according to the geological conditions of the bottom of the water. For example, the base 1 is directly inserted into the bottom of the water or a concrete pier is poured at the bottom of the base 1. In order 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 base 1 supporting the net 2. The structure of the base 1 can be as follows: Figure 1 The single pole structure shown or Figure 2The multi-pole structure shown. Under the premise of not affecting the sliding performance of the base 1 and the net 2, the shape of the pole can be selected as needed. Specifically, when the base 1 is a single-pole structure, the single-pole structure is located at the center of the grid 20, ensuring that the center of gravity of the net 2 and the axis of the single-pole structure can be located on the same straight line, preventing the net 2 from tilting during the floating and sinking process, and preventing air from escaping from the shell 21. The grid 20 is provided with a sleeve 20b that is compatible with the single-pole structure, and the sleeve 20b is located at the center of the grid 20. When the base 1 is a multi-pole structure, the multi-pole structure is distributed on the outer peripheral surface of the grid 20. At this time, a corresponding number of clamps can be set on the outer peripheral surface of the grid 20, and the multi-pole structure is respectively sleeved on the clamps. A bracket for installing and fixing the shell 21 is provided on the grid 20.

[0056] It should be noted that the base 1 may also have other forms, and it is not excluded that a column structure can also be used to achieve the stable floating and diving of the net 2 underwater. Figure 1 and Figure 2 The base 1 shown should not be understood as the only implementation form of the embodiment of the present application.

[0057] The shape of the housing 21 can be selected as needed, for example, it can be spherical or rectangular. In some embodiments, the housing 21 can be made of stainless steel, aluminum alloy or black plastic. The housing 21 has a chamber with a bottom opening, and the camera device 22 is located in the chamber. The opening is opposite to the water surface 200 of the pond, and the end face of the opening can be parallel or non-parallel to the horizontal plane. When the end face of the opening is inclined, the shooting angle of the camera device 22 can be sideways to one side, so that it can shoot the front and side of the shrimp. The total average density of the grid 20 and the shell 21 is greater than the density of water, that is, the grid 20 and the shell 21 are set in a normal state without the buoyancy device 3. At this time, the grid 20 and the shell 21 are sunk to the bottom of the water. The shell 21 under water and the water together form a closed cavity, which contains a certain volume of air. Under the action of water pressure, the air in the closed cavity is partially compressed, and the water in the pond enters the shell 21 and occupies part of the space of the chamber to form a liquid surface 100. At this time, the pressure inside and outside the shell 21 is in a balanced state. Based on the linear relationship between air pressure and water pressure, at a specific water depth, there is still an air chamber in the closed cavity. Therefore, the camera device 22 located in the shell 21 can be separated from the water to achieve the design purpose of not getting wet. That is to say, there is a certain distance between the camera device 22 and the liquid surface 100 in the housing 21, so the nutrient-rich water will not breed algae and other microorganisms on the surface of the camera device. Under this setting, it is possible to ensure the cleanliness of the camera device 22 lens and to ensure that the camera device 22 can work underwater for a long time without failure. For example, the water depth of shrimp breeding 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 air in the housing 21 is compressed, and the compressed air accounts for 86.95% to 97.08% of the volume of the chamber. Therefore, those skilled in the art can realize the inventive concept of the present application by ensuring that there is a certain distance between the lens of the camera device 22 and the liquid surface 100 in the housing 21.

[0058] It is understandable that, under the interference of the external environment and the observation device, the water in the breeding grounds such as ponds is certainly not static. Therefore, the gap distance between the lens of the camera device 22 and the liquid surface 100 in the shell 21 can be further increased on the basis of the above.

[0059] It is understandable that the camera device 22 in the embodiment of the present application can be a device with a shooting function, such as a spherical camera, a gun-shaped camera, a pinhole camera and an underwater camera, etc. Therefore, the distance between the housing 21 and the grid 20 can be set according to the specific model of the camera device 22, and is not the only limitation here. The camera device 22 can be equipped with a wireless terminal device or can interact with the user or process information through an external wireless terminal device. Specifically, the camera device 22 is sent to the wireless terminal device after shooting, and the wireless terminal device has a running program for analyzing image and video information, sending image and / or video information to the user terminal and the function of being able to interact. 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, the wireless terminal device is placed in the floating platform 300, and 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 the 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 shrimp health information and make corresponding breeding strategies.

[0060] In some embodiments, the camera device 22 may have two or more cameras so as 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, limb health, etc.

[0061] The working process of the observation device is 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 the action of its own gravity. At this time, the camera device 22 in the shell 21 can perform shooting work according to a preset program or the user sends a control instruction to the camera device 22 through a wireless terminal device, and the camera device 22 performs recording or taking pictures in the water to obtain images and / or videos of the water body or shrimps, so that the user can judge the current water quality color and the distribution, individual size and activity of the shrimps and other health information based on the images and / or videos.

[0062] The water in the pond is generally turbid. When photographing shrimps underwater, the activity of the shrimps is mainly observed, but it is difficult to obtain more detailed health information such as the shrimps' intestines and colors through underwater photography. Therefore, based on the feeding habits of shrimps, before and after feeding, the user controls or controls the buoyancy device 3 according to a preset program to drive the net 2 to float on the water surface 200 to catch a certain number of shrimps, and then the shrimps are photographed out of water through the camera device 22. Under this setting, the use of out-of-water photography can reduce the impact of water quality on images and / or videos. Exemplarily, the health status of shrimps includes but is not limited to the color and gloss of the shrimp shell, the fullness and color of the intestines, the color of the gills, whether the shrimps' limbs are missing, the fullness of the intestines, the gloss of the shrimp shells, the color of the gills, and the color of the liver.

[0063] On the basis of the above specific implementation methods, in order to improve the monitoring capability of the pond, a water quality monitoring component can also be set in the shell 21 to monitor the pH value, dissolved oxygen, ammonia nitrogen concentration and water temperature of the water body, such as a pH meter, a dissolved oxygen meter, a nitrogen oxygen analyzer and a temperature sensor. More precise breeding work can be achieved through the above water quality detection components.

[0064] It is understandable that after the image and / or video is sent to the wireless terminal device, the wireless terminal device can also parse the image and / or video, parse and generate corresponding processing information, and send a warning message to the user to inform the user to handle it in time.

[0065] In summary, the observation device provided by the present application has two working states, dynamic shooting under water and static shooting above water. When shooting underwater, the swimming activity, individual size, water color and turbidity of the shrimp can be intuitively obtained. When shooting above water, the remaining feed on the grid 20 and the intestinal conditions, appearance color and limbs of the shrimp can be intuitively obtained. In addition, compared with existing observation equipment, the observation device provided by the present application can serve underwater for a long time under normal conditions, and can avoid typhoons or man-made damage.

[0066] Example 2

[0067] In order to make the camera device 22 described in Example 1 have a higher shooting quality and to prevent water from evaporating and condensing into water mist on the surface of the camera device 22, thereby affecting the shooting effect of the camera device 22, the embodiment 2 of the present application also designs a corresponding structure. On the basis of the above-mentioned embodiment 1, please refer to 3. The observation device of embodiment 2 of the present application also includes a heating device 23 arranged in the shell 21, and the heating device 23 has a heating element that generates heat energy when powered on, and the heating element is located above the liquid surface 100. In specific implementation, for example, when the shell 21 is underwater, the heating device 23 is started 5 minutes before shooting, and the heat energy of the heating element is used to dry the water mist at the lens to ensure the shooting effect 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 is connected to the heating element and the temperature sensor, and is used to control the power on and off of the heating element;

[0070] The detection 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 buried in the ceramic tube. The resistance wire is spiral-shaped and surrounds the outer edge of the lens in the circumferential direction.

[0072] In this embodiment, under the premise of preventing the camera device 22 from getting wet and not affecting the shooting operation of the camera device 22, the resistance wire should be positioned as close to the lens of the camera device 22 as possible. The resistance wire is coaxial with the lens and surrounds the outer peripheral edge of the lens to ensure that the lens can be heated evenly, so that the water mist on the lens can be heated and dried at a faster speed.

[0073] The shape of the resistance wire can be selected as needed, for example, it can be a ring or spiral shape. The resistance wire is buried in the ceramic tube to prevent water vapor from invading the resistance wire and causing rust. The resistance wire in this embodiment is spiral and surrounds the lens in the circumferential direction. It can be imagined that the resistance wire is arranged opposite to the lens or surrounds the camera device 22 like a coil spring, and the middle part of the resistance wire is the shooting area of ​​the camera device 22.

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

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

[0076] It is understandable that other structures can also be set to determine whether there is water mist on the lens. For example, before collecting the image information of the shrimp, the camera device 22 enters the pre-check shooting mode, compares the captured image with the standard image without water mist, analyzes whether there is water mist, and then controls the heating element to work through the wireless terminal device to dry the water mist on the lens. After the heating device 23 runs for a period of time, the pre-check is repeated, and the image information is compared again to determine the water mist condition of the lens. If there is no water mist, the normal observation mode can be started.

[0077] In addition, the heating device 23 may also include a fan and a housing, the fan is mounted on the housing, the housing has an air outlet, the air outlet is provided with the above-mentioned heating element, and the air outlet faces the lens of the camera device 22.

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

[0079] Example 3

[0080] In actual application, shrimps will jump out of the water 200 when swimming in the pond. When swimming at the opening of the housing 21, the shrimps are likely to splash water and splash onto the camera device 22. Since the water in the pond is relatively turbid, it is easy to leave traces on the lens when flowing, causing the lens to be dirty. Therefore, in order to avoid the above situation, based on the first and second embodiments, please refer to Figure 4 The housing 21 of the observation device of Example 3 of the present application is further provided with a transparent plate 24, and 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 in the sealed cavity;

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

[0082] Furthermore, the observation device further comprises a cleaning device 4 , which comprises 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] In order to make the observation device described in embodiments 1 to 3 have better stability and be able to quickly respond to the user's control, based on the above embodiments 1 to 3, refer to Figure 5and Figure 6 , the grid 20 in Example 4 of the present application includes a frame 20a, a sleeve 20b and a mesh;

[0085] The base 1 includes a vertical pole;

[0086] The sleeve 20b is vertically arranged in the central area of ​​the frame 20a, the vertical pole is passed through the sleeve 20b, the mesh is wrapped and fixed on the bottom and side of the frame 20a, and the shell 21 is connected to the sleeve 20b.

[0087] Specifically, the frame 20a includes a first steel ring, a second steel ring, and steel bars respectively connecting and fixing the first steel ring and the second steel ring. The first steel ring and the second steel ring are placed horizontally. The mesh is a gauze woven from nylon. The mesh surrounds the first steel ring and the second steel ring into a cylinder with an open top. Feed can be placed on the gauze without leaking out. The first steel ring is on the top and the second steel ring is on the bottom. The second steel ring is also provided with at least two staggered brackets. The sleeve 20b is vertically installed on the bracket. The bracket is provided with a through hole adapted to the sleeve 20b. The vertical pole is provided with the sleeve 20b.

[0088] Furthermore, the buoyancy device 3 comprises an air bag 30, an air pipe 31 and an air supply device;

[0089] The airbag 30 is arranged on the bottom end surface of the frame 20a and is coaxial with the vertical pole. The airbag 30 is connected to the air supply device through an air pipe 31. The air pipe 31 is provided 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, such as a micro air pump, which is arranged in the floating platform 300. The shape of the airbag 30 can be selected as needed, such as a ring or annular shape. When arranging the airbag 30, it should be ensured as much as possible that the buoyancy provided by the airbag 30 is on the same straight line as the center of gravity of the net 2. Such an arrangement can keep the airbag 30 stable during the inflation and deflation process, and ensure that the center of gravity of the net 2 and the center of buoyancy are on the same straight line, so as to avoid the net 2 from tilting, thereby causing leakage in the air of the shell 21. When in use, the airbag 30 is inflated and deflated by the air supply device, which can change the supporting buoyancy of the net 2, so that the camera device 22 can capture clearer images or video information in the water body, so as to overcome the disadvantage that when the camera device 22 shoots the water body on the water surface 200, it is difficult to obtain a clear image due to water quality or too far away.

[0091] The observation device provided in the present application is submerged in water for a long time under normal conditions to realize dynamic observation underwater. The air supply device transmits 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 water surface 200 to realize static observation.

[0092] Furthermore, a pressure sensor for monitoring air pressure is provided on the airbag 30, or a water-off switch for controlling the on and off of the air supply device is provided in the housing 21. 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 end of inflation, so as to avoid the risk of explosion of the airbag 30 due to over-inflation. Alternatively, a water-off switch is provided in the housing 21, and the position of the water-off switch is below the liquid level 100. The airbag 30 provides buoyancy for the net 2 during inflation, and the net 2 floats, and the housing 21 is exposed on the water surface 200 before the net frame 20. Therefore, when the housing 21 is exposed on the water surface 200, the water-off switch can turn off the air supply device to avoid over-inflation of the airbag 30.

[0093] Furthermore, the air supply device is connected to an air pipe, and the air outlet of the air pipe is located in the shell 21. When the shell 21 is in water for a long time, the oxygen in the air in the shell 21 will inevitably dissolve in the water, causing the gas pressure of the shell 21 to drop and the water level in the shell 21 to rise. Therefore, in order to solve this problem, the air supply device is connected to an air pipe to regularly deliver a certain amount of air to the shell 21 to ensure that the water level in the shell 21 can be maintained in a lower level range.

[0094] In addition, a water level sensor can also be arranged in the shell 21. The position of the water level sensor in the shell 21 is between the set liquid level 100 and the heating element. When the observation device is tilted or oxygen is dissolved 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 sensing water. The wireless terminal device controls the air supply device to add a certain volume of air to the shell 21 through the air pipe to ensure that the liquid level 100 in the shell 21 can be below the camera device 22 and the heating element.

[0095] Furthermore, a fill light is provided at the bottom of the housing 21, and the irradiation direction of the fill light is toward the grid frame 20. The shape of the fill light can be selected as needed, for example, it can be circular, annular or rectangular, and a through hole is provided in the middle of the fill light for the camera device 22 to shoot through, and the diameter of the through hole is larger than the opening of the housing 21. A plurality of lamp beads and lenses buckled on the lamp beads are provided in the fill light, and the lenses are used to adjust the light intensity of the lamp beads and the fill light angle of the lamp beads. The fill light areas of the plurality of lamp beads are adapted to the grid frame 20, and when the camera device 22 is shooting, the wireless terminal device can start the fill light to provide fill light for the camera device 22.

[0096] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An observation device, characterized in that: It includes a base, a net that slides with the base, and a buoyancy device that drives the net to float; The net comprises a net frame and a shell, wherein the shell is located on the net frame, an opening is provided at the bottom of the shell, and a camera device is provided inside the shell; Wherein, 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 arranged in the shell, wherein the heating device has a heating element which generates heat energy when powered on, and the heating element is 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 is connected to the heating element and the temperature sensor, and is used to control the power on and off of the heating element; The detection end of the temperature sensor faces the lens of the camera device and is used to detect the temperature of the lens; The heating element is a resistance wire, which is buried in the ceramic tube. The resistance wire is spiral-shaped and surrounds the outer edge of the lens in the circumferential direction.

4. The observation device according to claim 1, characterized in that A transparent plate is also provided in the shell, and the transparent plate divides the internal space of the shell 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 located 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 end of the water pipe is connected to the water tank through the water pump, and the water outlet end of the water pipe faces the transparent plate and is connected to a nozzle.

6. The observation device according to any one of claims 1 to 5, characterized in that: The grid comprises a frame, a sleeve and a mesh; The base includes a vertical pole; The sleeve is vertically arranged in the central area of ​​the frame, the vertical pole is passed through the sleeve, the mesh is wrapped and fixed on the bottom and side of the frame, and the shell is connected to the sleeve.

7. The observation device according to claim 6, characterized in that The buoyancy device comprises an air bag, an air tube and an air supply device; The airbag is arranged on the bottom end surface of the frame and is coaxial with the vertical pole. The airbag is connected to the air supply device through an air pipe. The air pipe is provided with an electromagnetic air valve for controlling the inflation and deflation of the airbag.

8. The observation device according to claim 7, characterized in that The air bag is provided with a pressure sensor for monitoring air pressure, or a water-off power-off switch for controlling the on and off of the air supply device is provided in the shell.

9. The observation device according to claim 8, characterized in that The air supply device is connected to an air delivery pipe, and the air outlet of the air delivery pipe is located in the shell.

10. The observation device according to claim 9, characterized in that A fill light is arranged at the bottom of the shell, and the irradiation direction of the fill light is toward the grid frame.

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