Intelligent fish tank and method for children enlightenment education

Abstract

The invention discloses an intelligent fish tank for children enlightenment education, and the fish tank comprises a fish tank main body which is internally provided with a voice interaction module, an audio playing module, an image recognition module and a wireless transmission module; wherein the voice interaction module is used for carrying out dialogue interaction with children, the audio playing module is used for playing audio, the image recognition module is used for recognizing expressions and objects, and the wireless transmission module is used for carrying out data transmission with external terminal equipment. Intelligent upgrading and child-friendly design of the fish tank equipment are achieved, and the technical defect that traditional equipment lacks interaction ability is overcome. The system can recognize the emotional state of a user and make intelligent feedback, establishes a natural AI intelligent man-machine conversation mechanism, effectively improves the interaction experience of the child user, enables the child to carry out natural science popularization and accompanying conversation in the fish culture and observation process, is a child enlightenment education tool with interaction and accompanying functions, and improves the interestingness of the child. And the requirements of families on children education and accompanying are met.

Description

Technical Field

[0001] This invention relates to smart homes, and more particularly to a smart fish tank and method for children's early education. Background Technology

[0002] An aquarium is a transparent water container used to raise ornamental fish. Glass is the most common material, with hot-bent glass and ultra-clear glass being the most common types. The shape of the tank is usually rectangular or cubic, and the material is chosen based on the needs of the organisms being kept; for example, glass is often used for aquatic plants.

[0003] Traditionally, aquariums are primarily used as containers for keeping ornamental fish, their function largely limited to enhancing the aesthetics of a room and providing visual enjoyment. However, with the advancement of smart technology, existing aquariums are no longer adequate to meet the growing demands of smart homes. Currently available smart aquariums mainly focus on basic improvements such as automatic water changes and automatic feeding, lacking overall intelligence and failing to fully satisfy users' expectations for a smart lifestyle. Simultaneously, with families increasingly emphasizing children's companionship and habit formation, the market urgently needs a smart aquarium that can integrate into children's daily lives, offering interactive and companionship functions for early childhood education. Summary of the Invention

[0004] In order to overcome the shortcomings of existing technologies, which mainly focus on basic improvements such as automatic water changing and automatic feeding in smart fish tanks used for children's early education, the overall level of intelligence is insufficient and cannot fully meet users' expectations for smart living.

[0005] In a first aspect, the present invention provides a smart fish tank for children's early education, comprising: The main body of the fish tank is equipped with a voice interaction module, an audio playback module, an image recognition module, and a wireless transmission module. The system includes a voice interaction module for interacting with children, an audio playback module for playing audio, an image recognition module for facial expression and object recognition, and a wireless transmission module for data transmission with external terminal devices.

[0006] Optionally, the main body of the aquarium includes an inner tank and a shell. The inner tank is installed inside the shell. The shell includes an upper cover, a lower cover, and a middle cylinder. The upper cover is installed on the top of the middle cylinder, and the lower cover is installed on the bottom of the middle cylinder. An observation window is provided on the side wall of the middle cylinder. The inner tank is made of transparent material.

[0007] Optionally, the inner cylinder is equipped with a filter chamber and a water pump chamber, and the filter chamber is equipped with a physical filtration layer and a biological filtration layer.

[0008] Optionally, the pump compartment is equipped with a pump body and a temperature sensor. The pump body is connected to a drain pipe, and the top of the pump compartment is equipped with a water exchange hole, with the drain pipe connected to the water exchange hole.

[0009] Optionally, the inner cylinder is internally provided with a module box, and the filter bin and the water pump bin are arranged in the module box.

[0010] Optionally, the fish tank body is further provided with a light interaction module and a touch control module, the light interaction module is used for controlling the light module to present different color and brightness changes according to the dialogue content or the preset task, so as to provide visual interaction feedback, and the touch control module is used for touch interaction control function switching.

[0011] Optionally, the light interaction module comprises a breathing lamp and a lamp panel, the lamp panel is arranged inside the upper cover, the breathing lamp is arranged on the top of the upper cover, the bottom of the lamp panel is provided with a lampshade, and the touch control module comprises a touch key, the touch key is arranged on the upper cover, the upper cover is provided with a feeding hole, and the feeding hole is provided with a cover plate.

[0012] In a second aspect, the present application provides a method for children's early education, comprising the following steps: detecting whether a child is located in front of the fish tank body through an image recognition module; if it is detected that the child is located in front of the fish tank, analyzing the expression of the child through the image recognition module to analyze and infer the emotional state thereof; based on the emotional state, initiating dialogue interaction related to natural science knowledge or life scenes of the child through a voice interaction module.

[0013] Optionally, the content, duration and frequency of the dialogue between the fish tank body and the child through the voice interaction module are recorded, the emotional state is analyzed based on the content, duration and frequency of the dialogue, and an emotional report is generated, and if a negative emotion is identified, feedback is fed back to a terminal device through a wireless transmission module.

[0014] Optionally, the content of the dialogue interaction further comprises fish raising guidance, and the fish raising guidance comprises the following steps: obtaining the number and type of fish in the fish tank body; presetting feeding time and water changing time based on the number and type of fish; when the feeding time or the water changing time is reached, language guidance is performed through the voice interaction module, and the operation steps of the child are confirmed through the image recognition module.

[0015] The present application has the beneficial effects that: by integrating the voice interaction, audio playing, image recognition and wireless transmission modules in the fish tank body, the fish tank has the sensing, responding and educational capabilities, thereby solving the problem of insufficient intelligence of the existing fish tank. Specifically, the voice interaction module realizes natural language dialogue with the child, the audio playing module enhances the auditory experience, the image recognition module provides the emotion analysis and object confirmation functions, and the wireless transmission module expands the range of data interaction. Therefore, the fish tank is transformed from a traditional ornamental container into a children's early education tool with interactive and accompanying functions, which meets the needs of family education and accompanying of children. BRIEF DESCRIPTION OF DRAWINGS

[0016] The application will be further described below in conjunction with the drawings and embodiments.

[0017] Figure 1 is a structural schematic diagram in some embodiments; Figure 2 is an exploded structural schematic diagram in some embodiments; Figure 3 is a structural schematic diagram of a cylinder in some embodiments; Figure 4 is an exploded structural schematic diagram of a cylinder in some embodiments; Figure 5 is a system block diagram in some embodiments.

[0018] BRIEF DESCRIPTION OF DRAWINGS 1, terminal device; 2, fish tank main body; 201, voice interaction module; 202, audio playing module; 203, face recognition module; 204, wireless transmission module; 205, light interaction module; 223, touch module; 206, inner tank; 207, shell; 208, upper cover; 209, lower cover; 210, middle cylinder; 211, observation window; 212, filter bin; 213, water pump bin; 214, pump body; 215, drain pipe; 216, water changing hole; 217, module box; 218, breathing lamp; 219, lamp panel; 220, lampshade; 221, feeding hole; 222, cover plate. DETAILED DESCRIPTION

[0019] The concept, specific structure and generated technical effects of the application will be described clearly and completely in conjunction with the embodiments and drawings below, so as to fully understand the purpose, features and effects of the application. Obviously, the described embodiments are only some of the embodiments of the application, not all the embodiments, and other embodiments obtained by those skilled in the art based on the embodiments of the application without creative labor are within the protection scope of the application. In addition, all the coupling / connection relationships involved in the patent do not mean that the components are directly connected, but means that a better coupling structure can be composed by adding or reducing coupling accessories according to the specific implementation situation. The technical features in the application can be combined interactively without mutual contradiction and conflict.

[0020] In existing technologies, fish tanks, as transparent containers for raising ornamental fish, have long been primarily made of glass, their function limited to enhancing the aesthetics of a room and providing visual enjoyment. With the development of smart homes, traditional fish tanks struggle to adapt to the demands of intelligent living. Current smart fish tanks only offer basic functions such as automatic water changes and feeding, lacking emotional interaction capabilities. In the home setting, children need smart devices with companionship functions, and traditional fish tanks cannot establish interactive relationships through voice dialogue or emotional perception, thus limiting the device's usability.

[0021] To address these issues, the inventors observed a growing demand for interactive devices from children in the home environment, where traditional fish tanks failed to provide emotional companionship. Analysis revealed that existing smart fish tanks used for early childhood education lack multimodal interaction capabilities and cannot establish a two-way communication mechanism. Therefore, they proposed constructing a composite system with voice interaction and facial expression recognition, transforming a passive viewing device into an active interactive terminal. Further consideration is given to enabling remote control via wireless transmission, forming a complete smart ecosystem.

[0022] This invention provides an intelligent fish tank for children's early education, comprising: a fish tank body 2, which internally includes a voice interaction module 201, an audio playback module 202, an image recognition module, and a wireless transmission module 204; wherein, the voice interaction module 201 is used for dialogue interaction with children, the audio playback module 202 is used for playing audio, the image recognition module is used for facial expression recognition and object recognition, and the wireless transmission module 204 is used for data transmission with an external terminal device 1.

[0023] The voice interaction module 201 refers to a component with voice recognition and synthesis functions, specifically implemented using a microphone array and a voice chip, used to capture user voice and generate dialogue feedback. The audio playback module 202 refers to a sound output device, specifically implemented using a speaker unit, used to play music or audio content. The image recognition module can be implemented using a camera combined with image processing algorithms, such as deep learning models or traditional computer vision methods; it is mainly used to analyze children's facial expressions or identify the outline of specific objects. The wireless transmission module 204 refers to a data communication unit, specifically implemented using a Wi-Fi or Bluetooth module, used to establish a data transmission channel between the fish tank body 2 and the terminal device 1. The terminal device 1 refers to a remote operation device, specifically implemented using a smartphone or tablet, used to send commands and receive fish tank status data; relevant data can be operated by pre-installing a specific fish tank management APP on the terminal device 1.

[0024] Specifically, the fish tank body 2 serves as a basic carrier, internally integrating a voice interaction module 201, an audio playback module 202, and an image recognition module, and establishing a data connection with the external terminal device 1 through a wireless transmission module 204. Among them, the image recognition module is used to detect whether the child is located in front of the fish tank, and analyze the expression to infer the emotional state. Further, based on the detected emotional state, the voice interaction module 201 is triggered to conduct a dialogue interaction with the child related to natural science knowledge or life scene. The audio playback module 202 synchronously plays educational audio associated with the dialogue content, such as a story or knowledge explanation, thereby enhancing the auditory experience and appeal of the learning process. At the same time, the image recognition module can also recognize specific objects, such as feeding utensils, to provide auxiliary judgment basis for subsequent operations. The wireless transmission module 204 transmits the data generated during the interaction process to the external terminal device 1 in real time, facilitating the parents or guardians to remotely monitor the learning progress and emotional changes of the child. Thus, the modules work together to transform the fish tank from a traditional ornamental container into a child enlightenment tool with active perception, response, and educational capabilities, solving the problem of insufficient intelligence and lack of interactivity and accompanying functions of existing fish tanks.

[0025] Compared with the prior art, the traditional intelligent fish tank for child enlightenment education only has a single automatic function and cannot establish an emotional interaction link. The present scheme integrates voice interaction and expression recognition technology to enable the fish tank to have active communication capabilities, breaking through the limitations of traditional devices that only output information in one direction. The automatic water changing system in the prior art only optimizes physical environmental parameters, while the present scheme improves user emotional experience through multi-modal interaction, realizing the dimensional expansion of device functions from physical maintenance to emotional accompaniment.

[0026] Through the above technical scheme, by integrating voice interaction, audio playback, image recognition, and wireless transmission modules 204 in the fish tank body 2, the fish tank is endowed with perception, response, and educational capabilities, thereby solving the problem of insufficient intelligence of existing fish tanks. Specifically, the voice interaction module 201 enables natural language dialogue with children, the audio playback module 202 enhances auditory experience, and the image recognition module provides emotional analysis and object confirmation functions. Thus, the fish tank is transformed from a traditional ornamental container into a child enlightenment education tool with interactive and accompanying functions, meeting the needs of families for child education and accompaniment. The present application realizes the intelligent upgrading and child-friendly design of the fish tank device, solving the technical defect of the lack of interactive capabilities of traditional devices. The system can recognize user emotional states and provide intelligent feedback, establish a natural AI intelligent human-computer dialogue mechanism, effectively improve the interactive experience of child users, and enable children to conduct natural science popularization and accompanying dialogue while raising fish and observing fish. Through wireless transmission, remote control is realized, making device management more convenient, and forming a complete intelligent ecological system.

[0027] Further, the intelligent fish tank further comprises the following modules: A sound pre-processing module is configured to perform voice activity detection (VAD), echo cancellation (AEC), voiceprint recognition (SID), and noise reduction / speech separation processing on the input audio stream, and output a high signal-to-noise ratio voice signal.

[0028] An automatic speech recognition (ASR) module is connected to the sound pre-processing module and configured to convert the voice signal into a text form of user language input; the speech synthesis module is implemented by calling a text-to-speech service conforming to a standard speech synthesis interface, supports Chinese Mandarin and English output, and has a sampling rate of no less than 24 kHz.

[0029] The image recognition module comprises: - An image receiving unit configured to receive image information from a camera or uploaded by a user; - A visual language model unit configured to perform end-to-end semantic understanding on the input image and output a visual description in natural language form, including but not limited to object recognition, face recognition, embedded text recognition, etc.

[0030] An intelligent dialogue agent module is connected to the ASR module and the image recognition and understanding module, respectively, and is configured to fuse user language input, visual semantics, and historical dialogue context, generate a multi-modal perception natural language reply based on a large language model and a searchable knowledge base.

[0031] An emotion classification module is based on a fine-tuned pre-training language model of data generated by a large model, performs fine-grained emotion analysis on user language and multi-modal context, and outputs emotion category labels for dialogue information analysis; the emotion classification module is based on a pre-trained Transformer architecture language model, fine-tuned by a manually annotated emotion dataset, supports classification of 12 discrete emotion labels, and has an accuracy rate of no less than 85%.

[0032] A text-to-speech (TTS) module is connected to the intelligent dialogue agent module and is configured to convert the generated text reply into a voice signal and output it.

[0033] In some embodiments, the fish tank body 2 comprises an inner tank 206 and a shell 207, the inner tank 206 is arranged in the shell 207, the shell 207 comprises an upper cover 208, a lower cover 209 and a middle cylinder 210, the upper cover 208 is arranged at the top of the middle cylinder 210, the lower cover 209 is arranged at the bottom of the middle cylinder 210, an observation window 211 is arranged on the side wall of the middle cylinder 210, and the inner tank 206 is made of transparent material.

[0034] The inner cylinder 206 refers to an independent container made of transparent material, which can be realized by acrylic glass, used to contain water and fish and maintain the visuality of observation. The shell 207 refers to the external frame wrapping the inner cylinder 206, which can be realized by a split assembly structure, composed of a detachable upper cover 208, a middle cylinder 210 and a lower cover 209, providing independent installation space for the intelligent module. The observation window 211 refers to the opening area set on the side wall of the middle cylinder 210, used to maintain the visual angle of traditional fish tanks. The transparent material refers to a material with a visible light transmittance higher than the standard value, which can be realized by high transmittance glass or resin material, ensuring that the user can directly view the internal state of the inner cylinder 206 through the observation window 211.

[0035] Specifically, the inner cylinder 206 is completely wrapped in the shell 207 as an independent container, and the shell 207 is modularly assembled by a three-section split structure. The upper cover 208 and the top of the middle cylinder 210 are connected to form a top closed space, used to integrate the voice interaction module 201 and the expression recognition module; the lower cover 209 and the bottom of the middle cylinder 210 are connected to form a bottom support structure, used to fix the water pump compartment 213 and other water-related components. The observation window 211 opened on the side wall of the middle cylinder 210 cooperates with the transparent material of the inner cylinder 206 to form an unobstructed viewing area, and the user can still directly observe the fish activities in the inner cylinder 206 through the observation window 211 under the wrapping state of the shell 207. The split structure of the shell 207 physically isolates the intelligent module and the inner cylinder 206, avoiding direct contact between electronic components and water, and hides cables and equipment to maintain the appearance neat.

[0036] Further, the upper cover 208 and the middle cylinder 210 are connected by a hinge bolt, and the upper cover 208 can be opened and closed by turning over on the middle cylinder 210. Such connection mode is convenient for maintaining the internal components of the middle cylinder 210 or placing fish, and the lower cover 209 is connected to the middle cylinder 210 by screws.

[0037] In some embodiments, the inner cylinder 206 is provided with a filter compartment 212 and a water pump compartment 213, and the filter compartment 212 is provided with a physical filter layer and a biological filter layer.

[0038] The filter bin 212 refers to a separate chamber for containing filter media and performing water treatment. It can be implemented by a multi-layer separation structure, for example, a physical filter layer is arranged to intercept solid impurities, and a biological filter layer is arranged to cultivate beneficial bacteria to decompose organic matter. This structure improves the filtering efficiency through a hierarchical treatment mechanism, avoiding the problems of blockage or insufficient degradation caused by the mixing of traditional single filter material. The water pump bin 213 refers to a separate chamber for installing water circulation equipment and providing a power source. It can be separated from the filter bin 212 by a waterproof partition, for example, an internal pump body 214 is arranged to drive water circulation, and a turbidity sensor is integrated to monitor water parameters. This design ensures the stability of the water pump operation through physical isolation and provides a separate installation space for the sensor.

[0039] Specifically, the filter bin 212 and the water pump bin 213 form a chamber structure that is independent of each other and connected. After the water flows through the physical filter layer to intercept solid particles, it enters the biological filter layer to decompose organic matter, and then the pump body 214 in the water pump bin 213 drives the water circulation to be completed. The physical separation of the two bins allows the filter media replacement operation and the water circulation system maintenance to be independent of each other. The water exchange hole 216 arranged at the top of the water pump bin 213 can be directly connected to the drain pipe 215 to realize directional sewage discharge. The water exchange hole 216 can also be connected to an external water exchange pipe, which is mainly used during water exchange. This layout optimizes the equipment operation efficiency through functional zoning, and reserves sensor installation sites to realize real-time water quality monitoring.

[0040] The physical filter layer refers to a structure layer that removes suspended particles in the water body by mechanical interception. It can be implemented by multiple layers of sponge or fiber filter cotton to intercept solid impurities such as fish food residue and fish excrement. The biological filter layer refers to a functional layer that decomposes organic pollutants through microbial metabolism. It can be implemented by porous ceramic rings or biochemical cotton, and a nitrifying bacteria colony is formed on its surface to degrade ammonia nitrogen and nitrite.

[0041] Specifically, the physical filter layer is arranged upstream of the biological filter layer, and the water flows through the two layers in sequence. Large particle impurities are first intercepted by the physical filter layer to avoid direct entry into the biological filter layer and cause pore blockage. Dissolved pollutants are then decomposed by microorganisms in the biological filter layer into harmless substances, forming a step-by-step purification process. The cascade operation of the two layers not only reduces the load of a single filter layer, but also complements the purification efficiency through different mechanisms.

[0042] In some embodiments, the water pump bin 213 is provided with a pump body 214 and a temperature sensor (not shown in the figure), the pump body 214 is connected with a drain pipe 215, and the top of the water pump bin 213 is provided with a water exchange hole 216, the drain pipe 215 is connected with the water exchange hole 216.

[0043] The pump body 214 refers to a mechanical device for driving water flow, which can be implemented by a micro centrifugal pump. The temperature sensor refers to a device for measuring water temperature, which can be implemented by a digital thermistor. The drain pipe 215 refers to a flow channel connecting the pump body 214 and the water exchange hole 216, which can be implemented by a flexible silica gel pipe. The water exchange hole 216 refers to a water outlet arranged at the top of the water pump chamber 213, which can be implemented by a tubular structure with an anti-backflow valve.

[0044] Specifically, the pump body 214 is physically connected to the water exchange hole 216 through the drain pipe 215, and the extracted water flow is directed to discharge from the top water exchange hole 216 through the drain pipe 215. This structure design allows the impurities deposited at the bottom of the water pump chamber 213 to be discharged with the water flow, avoiding the residue caused by traditional lateral drainage. The data of the temperature sensor is transmitted to the terminal device 1 through the wireless transmission module 204, and the terminal device 1 issues a temperature warning through the temperature parameter. For example, when the temperature parameter is in the range of 15-28℃, it is suitable for temperature, when the temperature parameter is <15℃, it is a low temperature warning, and when the temperature parameter is >28℃, it is a high temperature warning.

[0045] Further, the water pump chamber 213 is also provided with filter cotton for filtering impurities in the water pump chamber 213.

[0046] In some embodiments, the inner cylinder 206 is provided with a module box 217, and the filter chamber 212 and the water pump chamber 213 are installed in the inner cylinder 206.

[0047] The module box 217 refers to a function integrated unit arranged inside the inner cylinder 206, which can be implemented by a waterproof box body formed by injection molding. The internal space is divided into a filter chamber 212 installation area and a water pump chamber 213 installation area. The filter chamber 212 refers to a container for containing filter media, which can be implemented by a plastic chamber body with a grid design. The physical filter layer and the biological filter layer are used to achieve multi-stage filtration. The water pump chamber 213 refers to a sealed space for installing water circulation equipment, which can be implemented by a metal chamber body with a sealing ring. The circulation waterway is formed by connecting the pump body 214 and the drain pipe 215.

[0048] Specifically, the module box 217 is fixedly installed at the side wall of the inner cylinder 206, and the inside thereof is divided into two independent chambers by a partition. The filter chamber 212 is embedded in the left chamber, and the inside thereof is sequentially stacked with filter cotton and ceramic rings with different diameters to form a vertical distribution structure of physical filtering layer and biological filtering layer. The water pump chamber 213 is embedded in the right chamber, and a micro-submersible pump is installed in the inside thereof. The water outlet of the pump body 214 is connected with the drain pipe 215 through a quick connection structure, and the drain pipe 215 extends to the top of the inner cylinder 206 to form a circulating water outlet. The top of the module box 217 is provided with a detachable cover plate 222, and when maintenance is performed, the filter material in the filter chamber 212 and the pump body 214 in the water pump chamber 213 can be simultaneously contacted by opening the cover plate 222.

[0049] Further, the module box 217 includes a box cover and a box body, and the box cover is snap-connected with the box body. The snap connection facilitates the removal of the box cover and then the maintenance of the filter chamber 212 and the water pump chamber 213 inside.

[0050] In some embodiments, the fish tank main body 2 is also provided with a light interaction module 205 and a touch control module 223. The light interaction module 205 is used to control the light module to present different color and brightness changes according to the dialogue content or the preset task, so as to provide visual interaction feedback. The touch control module is used for touch interaction control function switching.

[0051] Specifically, the light interaction module 205 refers to a device capable of dynamically adjusting the light performance according to a specific input signal. It can be realized by using an LED lamp group cooperating with a controller. The controller analyzes the corresponding color and brightness instructions by receiving the signal of the voice interaction module 201. The touch control module refers to a device capable of sensing user touch operation and converting it into a control instruction. It can be realized by technologies such as capacitive touch sensor or resistive touch screen. The purpose of introducing the light interaction module 205 is to strengthen the situational expression of educational content through visual feedback, and the setting of the touch control module is to reduce the operation threshold of children and enhance the interactivity.

[0052] In detail, the light interaction module 205 establishes a data connection with the voice interaction module 201. During the exchange process, the light interaction module 205 changes the brightness according to the frequency of speaking (equivalent to the breathing light 218). This dynamic visual feedback mechanism not only enhances the immersion of the learning scene, but also effectively attracts the attention of children. The touch control module enables children to realize educational mode switching or start interactive tasks through simple touch operation by setting touch keys on the upper cover 208. The combination of the two realizes a multi-sensory coordinated educational interaction system, significantly improving the learning interest and participation of children. At the same time, this design is combined with the structural characteristics of the fish tank main body 2, fully utilizes the spatial layout of the upper cover 208, and forms a complete interaction system.

[0053] Further, the touch module is used to control the opening and closing of the fish tank body 2, mode switching (such as switching to a child interaction mode and a non-child interaction mode, and the non-child interaction mode will no longer have voice interaction), light control, water pump control and other operations.

[0054] In some embodiments, the light interaction module 205 includes a breathing light 218 and a lamp panel 219, the lamp panel 219 is arranged inside the upper cover 208, the breathing light 218 is arranged on the top of the upper cover 208, the bottom of the lamp panel 219 is provided with a lampshade 220, the touch module 223 includes a touch button (not shown in the figure), the touch button is arranged on the upper cover 208, the upper cover 208 is provided with a feeding hole 221, and the feeding hole 221 is provided with a cover plate 222.

[0055] Among them, the breathing light 218 refers to a lighting unit with light intensity gradient function, which can be realized by adopting LED array combined with PWM dimming circuit, and the mood signal is transmitted by simulating the breathing rhythm through periodic brightness change. The lamp panel 219 refers to a planar light source assembly, which can be realized by combining a light guide plate with a side-in LED, and is used to provide uniform basic lighting and form an ambient light atmosphere. The lampshade 220 refers to a light-transmitting protective structure, which can be made of frosted acrylic material, and the point light source glare is eliminated by diffuse reflection principle and the light distribution is optimized.

[0056] Specifically, the breathing light 218 is arranged in the top area of the upper cover 208, and the dynamic brightness change directly faces the user's visual area, and different breathing frequencies and color changes corresponding to different emotions are realized through programming control. The lamp panel 219 is embedded in the internal cavity of the upper cover 208, the LED light bar is arranged at the edge of the light guide plate, and the light is diffused in the light guide plate to form a uniform area light source. The lampshade 220 covers the bottom light output surface of the lamp panel 219, converts direct light into scattered light output, and avoids local strong light from causing visual interference to the user. The breathing light 218 and the lamp panel 219 form a layered light source layout, the breathing light 218 is responsible for dynamic emotional expression, and the lamp panel 219 maintains constant ambient lighting, and the two work together to transmit emotional information without affecting the basic visual demand.

[0057] Among them, the feeding hole 221 refers to a through hole arranged on the top of the fish tank, which can be realized by adopting a circular or rectangular hole structure, and the size range of the diameter or side length of the hole is adjusted according to the size of the feed particles, and is used to guide the directional feeding of the feed into the tank body. Among them, the cover plate 222 refers to a movable part covering the outside of the feeding hole 221, which can be realized by adopting a rotary or sliding rail opening and closing structure, and is connected with the upper cover 208 in an openable and closable manner through hinge connection or sliding groove limiting, and is used to close the hole in the non-feeding state.

[0058] Specifically, when feeding is needed, the cover plate 222 is opened to make the feeding hole 221 in an open state, and the feed falls vertically into the cylinder through the hole, and the falling trajectory is concentrated to the target area by the side wall of the hole, avoiding scattering outside the cylinder or floating on the water surface. After the feeding is completed, the cover plate 222 is reset to close, so that the hole forms a physical barrier to prevent dust particles in the external air from entering the cylinder through the hole, and to isolate the ambient humidity from contacting the feed. The closed state also prevents children from accidentally touching the feeding hole 221 to cause excessive feeding, and the close fit of the cover plate 222 and the hole can prevent accidental opening due to external force impact.

[0059] The present application also provides a method for children's early education, comprising the following steps: detecting whether a child is located in front of the fish tank body 2 through an image recognition module; if it is detected that the child is located in front of the fish tank, analyzing the child's expression through the image recognition module to analyze and infer the emotional state thereof; based on the emotional state, initiating a dialogue interaction related to natural science knowledge or a life scene with the child by a voice interaction module 201.

[0060] The core innovation of the present method is that the image recognition module and the voice interaction module 201 are combined in a synergistic mechanism, thereby realizing personalized education interaction based on the emotional state of the child and achieving the effect of changing the traditional fish tank from a mere ornamental function to an early education tool that actively senses and responds to the needs of the child. Specifically, the image recognition module can not only detect the position characteristics of the child to ensure that the system only starts the subsequent process when the child is present, but also can capture facial expression changes in real time and accurately analyze the emotional state of the child, providing data support for personalized education content generation. At the same time, the voice interaction module 201 actively outputs dialogue content related to natural science knowledge or a life scene according to the emotional analysis result, such as question answering in the child's fish watching scene: Why can fish sleep in water? Popular science of scientific knowledge in the process of fish breeding: Why can water flow down through the pipe? (siphon principle), so that the education content matches the current emotion of the child, significantly enhancing the interactive appeal and knowledge transmission effect.

[0061] In practical applications, the above method uses the fish tank body 2 as the basic carrier, integrating a voice interaction module 201, an audio playback module 202, and an image recognition module. It establishes a data connection with an external terminal device 1 via a wireless transmission module 204. The image recognition module detects whether a child is in front of the fish tank and analyzes their facial expressions to infer their emotional state. The voice interaction module 201 triggers dialogue with the child based on the detected emotional state. The audio playback module 202 synchronously plays educational audio related to the dialogue content, such as stories or knowledge explanations, thereby enhancing the auditory experience and appeal of the learning process. Simultaneously, the image recognition module can also identify specific objects, such as feeding utensils, providing auxiliary judgment for subsequent operations. The wireless transmission module 204 transmits data generated during the interaction to the external terminal device 1 in real time, facilitating remote monitoring of the child's learning progress and emotional changes by parents or guardians. Thus, the modules work together to transform the fish tank from a traditional ornamental container into a child-developing tool with active perception, response, and educational capabilities, solving the problems of insufficient intelligence and lack of interactivity and companionship functions in existing fish tanks.

[0062] Furthermore, the number of words output per speech is limited based on the child's age group. For example, for children aged 3-4, the number of words output per speech should not exceed 20; for children aged 4-5, the number of words output per speech should not exceed 40. During the 5-6 year old stage, a single speech output should not exceed 60 words.

[0063] In some embodiments, the content, duration, and frequency of the conversation between the fish tank body 2 and the child through the voice interaction module 201 are recorded. Based on the content, duration, and frequency of the conversation, the emotional state is analyzed and an emotion report is generated. If negative emotions are detected, feedback is sent to the terminal device 1 through the wireless transmission module 204.

[0064] Specifically, dialogue content refers to all linguistic information involved in the voice interaction, which can be achieved by converting audio data into text data using speech-to-text technology. Dialogue duration refers to the length of each voice interaction, which can be achieved by using a timer module to track the duration of the voice interaction process. Dialogue frequency refers to the number of voice interactions that occur per unit of time, which can be achieved by using a statistics module to count the number of interactions within a specific time period. The purpose of introducing these features is to provide multi-dimensional data support for emotion state analysis.

[0065] In detail, the scheme builds a dynamic emotion monitoring system by integrating the recording functions of conversation content, duration and frequency. In actual operation, the system first captures the conversation information with the voice interaction module 201 and converts it into an analyzable data form. Then, through comprehensive analysis of these data, the system can track the emotional changes of children in real time. For example, when detecting that there are more negative words in the conversation content accompanied by shorter conversation duration and lower conversation frequency, the system will judge that the child may be in a negative emotional state. This multi-dimensional data-based emotional analysis method effectively avoids misjudgment that may be caused by simply relying on initial expression recognition. At the same time, the system generates a structured emotional report based on the analysis results, so that parents or educators can understand the emotional trends of children. When a negative emotion is identified, the system will send a notification to the terminal device 1 in time through the wireless transmission module 204, ensuring that the guardian can quickly respond and take intervention measures. This overall scheme significantly improves the safety and effectiveness of children's emotional management.

[0066] In some embodiments, the content of the conversation interaction also includes fish raising guidance, which includes the following steps: Obtaining the number and type of fish in the fish tank body 2; Based on the number and type of fish, preset feeding time and water changing time; When the feeding time or water changing time is reached, language guidance is conducted through the voice interaction module 201, and the child's operation steps are confirmed in combination with the image recognition module.

[0067] Specifically, the preset number and type of fish in the fish tank body 2 means that the types and quantities of fish in the fish tank are set according to the actual feeding needs, which can be realized by manual input of the user or import from the external terminal device 1, and the purpose is to provide basic data support for subsequent generation of scientific and reasonable feeding and water changing plan. Based on the number and type of fish, the feeding time point and water changing time point are dynamically calculated according to the physiological characteristics and feeding density of different fish, which can be realized by built-in algorithm model or calling cloud database, and the purpose is to ensure that the generated time points meet the actual needs of specific fish. When the feeding time point or water changing time point is reached, the child's operation steps are confirmed through the image recognition module and the feeding or water changing tool object is identified, which means that the image recognition technology is used to monitor the child's operation behavior in real time and judge whether the tool is used correctly, which can be realized by deep learning algorithm or template matching technology, and the purpose is to ensure that the system can accurately evaluate the child's operation specification. Combined with the voice interaction module 201 for language guidance to complete feeding or water changing means providing immediate voice guidance during operation, which can be realized by preset voice library or real-time speech synthesis technology, and the purpose is to enhance the child's immersion and learning effect in practice.

[0068] Specifically, the above-mentioned scheme makes children's education from simple knowledge transfer to practical operation guidance by integrating fish feeding depth into the dialogue interaction process. First, the preset number and type of fish in the fish tank body 2 provide a personalized basis for subsequent guidance, because different fish species have significant differences in food and water quality requirements. This preset ensures that the system can customize a scientific plan for specific feeding objects, avoiding the blindness of universal guidance. Second, based on the number and type of fish, the feeding time point and water changing time point are generated, which dynamically calculates the maintenance node that meets the actual needs. Its particularity lies in that it is based on preset information rather than a fixed schedule, so that the time point generation closely matches the physiological characteristics of fish, improving the feasibility and educational adaptability of fish feeding activities. On this basis, when the feeding time point or water changing time point is reached, the image recognition module confirms the child's operation steps and identifies the feeding or water changing tool objects, which monitors the operation process and tool usage in real time, ensuring that the system can accurately judge whether the child's behavior is standardized, providing a reliable basis for subsequent guidance. Finally, language guidance is completed by combining the voice interaction module 201 to feed or change water, providing immediate and situational voice guidance during the operation process, allowing children to naturally absorb fish feeding knowledge through hands-on practice, enhancing the immersion and habit-forming effect of educational content, thereby transforming the fish tank from an ornamental container to a practical carrier for children's daily education.

[0069] Further, when water changing is needed, the light interaction module 205 presents blue light, and when feeding is needed, the light interaction module presents yellow light. Through the external terminal device 1, the working hours such as wake-up time and bedtime can also be preset. When the wake-up time comes, the light in the light interaction module 205 slowly turns on, and the voice interaction module 201 initiates dialogue guidance to help the child respond to complete the wake-up. When the bedtime comes, the voice interaction module 201 outputs a bedtime story (a 3-minute goodnight story about fish generated according to the child's age and gender, with white noise played by the audio playback module 202). The light effect of the light interaction module 205 slowly turns off as the story is about to end. It should be noted that the bedtime story can only be triggered at bedtime after the child has completed the wake-up.

[0070] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without deviating from the spirit of the present application, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present application.

Claims

1. A smart fish tank for children's early education, characterized in that, include: The main body of the fish tank is equipped with a voice interaction module, an audio playback module, an image recognition module, and a wireless transmission module. The system includes a voice interaction module for interacting with children, an audio playback module for playing audio, an image recognition module for facial expression and object recognition, and a wireless transmission module for data transmission with external terminal devices.

2. The intelligent fish tank for children's early education according to claim 1, characterized in that, The main body of the fish tank includes an inner tank and a shell. The inner tank is installed inside the shell. The shell includes an upper cover, a lower cover, and a middle cylinder. The upper cover is installed on the top of the middle cylinder, and the lower cover is installed on the bottom of the middle cylinder. An observation window is provided on the side wall of the middle cylinder. The inner tank is made of transparent material.

3. The intelligent fish tank for children's early education according to claim 2, characterized in that, The inner cylinder contains a filter chamber and a water pump chamber. The filter chamber contains a physical filtration layer and a biological filtration layer.

4. The intelligent fish tank for children's early education according to claim 3, characterized in that, The pump compartment contains a pump body and a temperature sensor. The pump body is connected to a drain pipe. The top of the pump compartment has a water exchange hole, and the drain pipe is connected to the water exchange hole.

5. The intelligent fish tank for children's early education according to claim 3, characterized in that, The inner cylinder is equipped with a module box, and the filter chamber and water pump chamber are installed inside the module box.

6. The intelligent fish tank for children's early education according to claim 2, characterized in that, The main body of the aquarium also includes a lighting interaction module and a touch control module. The lighting interaction module controls the lighting module to present different colors and brightness changes according to the dialogue content or preset tasks, so as to provide visual interactive feedback. The touch control module is used for touch interactive control function switching.

7. The intelligent fish tank for children's early education according to claim 6, characterized in that, The lighting interaction module includes a breathing light and a light panel. The light panel is installed inside the upper cover, the breathing light is installed on the top of the upper cover, and a lampshade is provided at the bottom of the light panel. The touch module includes touch buttons, which are located on the upper cover. The upper cover has a feeding hole, and a cover plate is provided at the feeding hole.

8. A method for early childhood education, characterized in that, Includes the following steps: The image recognition module detects whether a child is located in front of the main body of the fish tank. If a child is detected in front of the fish tank, the image recognition module analyzes the child's facial expression to infer their emotional state. Based on the emotional state, the voice interaction module initiates dialogue interactions related to the child's natural science knowledge or life scenarios.

9. The method for early childhood education according to claim 8, characterized in that, The system records the content, duration, and frequency of conversations between the fish tank and the child via a voice interaction module. Based on the content, duration, and frequency of these conversations, it analyzes the child's emotional state and generates an emotion report. If negative emotions are detected, the system transmits the feedback to the terminal device via a wireless transmission module.

10. The method for early childhood education according to claim 8, characterized in that, The interactive content also includes a fish-raising guide, which includes the following steps: Obtain the number and type of fish in the main body of the aquarium; Preset feeding and water change times based on the number and type of fish; When it's feeding time or water change time, the voice interaction module provides verbal guidance, and the image recognition module confirms the child's operating steps.

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