Animal health monitoring device

Abstract

The invention provides an animal health monitoring device which is applied to the technical field of animal husbandry management. The device comprises a blood oxygen detection unit, a data processing unit and a continuous power supply unit, the blood oxygen detection unit is in communication connection with the data processing unit, and the continuous power supply unit is electrically connected with the blood oxygen detection unit; the blood oxygen detection unit is used for detecting a blood oxygen signal of an animal based on an optical absorption principle; the data processing unit is used for determining the blood oxygen saturation degree of the animal according to the blood oxygen signal; and the continuous power supply unit is used for automatically generating power based on mechanical energy generated by animal activities and providing electric energy for the blood oxygen detection unit.

Description

Technical Field

[0001] The invention relates to the technical field of animal husbandry management, and in particular to an animal health monitoring device. Background Art

[0002] With the rapid development of modern animal husbandry, the status of precision animal husbandry technology has become increasingly prominent and has become an indispensable part of animal husbandry management. In today's animal husbandry industry, to achieve efficient and scientific management, precision animal husbandry technology plays a key role and can help animal husbandry better adapt to modern development needs.

[0003] In the prior art, ear tags are important tools for animal identification and management, and can be used to record basic information and some behaviors of animals, such as numbers and birth dates. This facilitates the distinction of individual animals and the grasp of basic information to a certain extent, and helps in daily animal husbandry management, such as being able to quickly know the basic information of animals, such as their age.

[0004] However, traditional ear tags are mainly limited to simple identification functions and can only play a basic role in distinguishing different animal individuals, and cannot meet the needs of intelligent and automated livestock management. Summary of the invention

[0005] The invention provides an animal health monitoring device, which is used to solve the problem that the ear tag in the prior art cannot meet the demand of intelligent and automated animal husbandry management.

[0006] The present invention provides an animal health monitoring device, comprising: a blood oxygen detection unit, a data processing unit and a continuous power supply unit; the blood oxygen detection unit is communicatively connected to the data processing unit, and the continuous power supply unit is electrically connected to the blood oxygen detection unit; the blood oxygen detection unit is used to detect the blood oxygen signal of the animal based on the optical absorption principle; the data processing unit is used to determine the blood oxygen saturation of the animal according to the blood oxygen signal; the continuous power supply unit is used to automatically generate electricity based on the mechanical energy generated by the animal's activities and provide electrical energy for the blood oxygen detection unit.

[0007] According to an animal health monitoring device provided by the present invention, the blood oxygen detection unit includes a light source and a light detector; the light source is used to emit red light and infrared light to the animal body tissue, and the light detector is used to receive light passing through the animal body tissue and generate the blood oxygen signal based on the light.

[0008] According to an animal health monitoring device provided by the present invention, the blood oxygen detection unit is an animal ear tag; the light source is used to emit red light and infrared light to the animal ear tissue, and the light detector is used to receive light passing through the animal ear tissue and generate the blood oxygen signal based on the light.

[0009] According to an animal health monitoring device provided by the present invention, the light detector is a photodiode.

[0010] According to an animal health monitoring device provided by the present invention, the blood oxygen detection unit also includes a signal amplifier and a filter; the signal amplifier is used to amplify the blood oxygen signal collected by the light detector, and the filter is used to filter the blood oxygen signal collected by the light detector.

[0011] According to an animal health monitoring device provided by the present invention, the data processing unit includes a spectral reconstruction module and a calculation module; the spectral reconstruction module is used to perform principal component analysis and spectral reconstruction on the blood oxygen signal to obtain a reconstructed spectrum; the calculation module is used to determine the animal's blood oxygen saturation based on the reconstructed spectrum.

[0012] According to an animal health monitoring device provided by the present invention, the continuous power supply unit includes a friction nanogenerator, an energy storage module and an electric energy regulation module; the friction nanogenerator is used to convert the mechanical energy generated by animal activities into electrical energy; the energy storage module is used to store the electrical energy generated by the friction nanogenerator and provide a stable output current; the electric energy regulation module is used to adjust the working voltage of the energy storage module.

[0013] According to an animal health monitoring device provided by the present invention, the friction nanogenerator includes a friction material, cardboard, a spring, a copper foil tape and a wire; the spring is installed between the friction material and the cardboard to drive the friction nanogenerator to work; the copper foil tape is laid on the surface of the friction material to collect the charges generated by friction; the wire is connected to the copper foil tape to transfer the charges to the energy storage module.

[0014] According to an animal health monitoring device provided by the present invention, the friction material comprises a tetrafluoroethylene film and a polyvinyl chloride film, the tetrafluoroethylene film is a negatively charged material, and the polyvinyl chloride film is a positively charged material.

[0015] According to an animal health monitoring device provided by the present invention, the thickness of the tetrafluoroethylene film is 0.2 mm, and the thickness of the polyvinyl chloride film is 0.3 mm.

[0016] The animal health monitoring device provided by the present invention, on the one hand, can detect the blood oxygen signal of the animal based on the optical absorption principle, and determine the blood oxygen saturation of the animal according to the blood oxygen signal, thereby meeting the needs of modern animal husbandry management for real-time monitoring of the health status of animals; on the other hand, since it can automatically generate electricity based on the mechanical energy generated by animal activities and provide electrical energy for the blood oxygen detection unit, it can solve the battery life problem of the device and ensure that the device can operate stably for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is one of the structural schematic diagrams of the animal health monitoring device provided by the present invention; Figure 2 This is the second structural schematic diagram of the animal health monitoring device provided by the present invention; Figure 3 It is a schematic structural diagram of the friction nanogenerator provided by the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0021] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0022] In order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and order of execution.

[0023] The embodiments of the present application describe some exemplary embodiments for the purpose of explanation. It should be understood that the present application can be implemented in other ways that are not specifically shown in the drawings.

[0024] like Figure 1 As shown, an embodiment of the present application provides an animal health monitoring device, which includes a blood oxygen detection unit 100, a data processing unit 200, and a continuous power supply unit 300. The blood oxygen detection unit 100 is communicatively connected to the data processing unit 200, and the continuous power supply unit 300 is electrically connected to the blood oxygen detection unit 100.

[0025] The blood oxygen detection unit 100 is used to detect the blood oxygen signal of the animal based on the optical absorption principle.

[0026] The data processing unit 200 is used to determine the blood oxygen saturation of the animal according to the blood oxygen signal.

[0027] The continuous power supply unit 300 is used to automatically generate electricity based on the mechanical energy generated by animal activities and provide power for the blood oxygen detection unit.

[0028] It should be noted that the optical absorption principle refers to the phenomenon that when light shines on a substance, the energy of the photon is absorbed by the atoms, molecules or ions in the substance, thereby weakening the intensity of the light. Since different substances have different absorption characteristics, the blood oxygen saturation of the animal can be calculated by accurately measuring this absorption difference. Blood oxygen saturation refers to the percentage of oxygenated hemoglobin capacity in the blood to the total hemoglobin capacity that can be combined.

[0029] Optionally, the blood oxygen detection unit 100 may include a light source and a light detector; the light source is used to emit red light and infrared light to the animal body tissue, and the light detector is used to receive the light passing through the animal body tissue and generate the blood oxygen signal based on the light.

[0030] The above-mentioned blood oxygen detection unit 100 can be a photoplethysmogram (PPG) sensor, which includes a red light LED and an infrared light LED. The red light LED can emit light with a wavelength of 660nm, and the infrared light LED can emit light with a wavelength of 940nm. The transmission signal can be received by the light detector and a PPG waveform can be generated.

[0031] Specifically, in animal blood, there are two main components, oxygenated hemoglobin (HbO2) and deoxygenated hemoglobin (Hb), which have obvious differences in absorption characteristics of light of different wavelengths. Oxygenated hemoglobin (HbO2) absorbs relatively less red light (red), but more infrared light (IR). Deoxygenated hemoglobin (Hb) is the opposite, absorbing more red light and less infrared light. Based on the completely different absorption characteristics of these two types of hemoglobin for red light and infrared light, when the light source alternately emits red light and infrared light to the animal's body tissue, the light emitted by the light source will pass through the blood tissue containing these two types of hemoglobin, and the amount of light absorbed will vary depending on the type and content of hemoglobin. The light detector can receive the transmitted or reflected light and convert it into an electrical signal, namely a blood oxygen signal.

[0032] Optionally, continue to refer to Figure 1 The blood oxygen detection unit 100 may be an animal ear tag; the light detector may be a photodiode. The light source is used to emit red light and infrared light to the ear tissue of the animal, and the light detector is used to receive the light passing through the ear tissue of the animal and generate the blood oxygen signal according to the light.

[0033] Specifically, the blood oxygen detection unit usually adopts a non-invasive penetrating measurement method, which does not cause trauma to the body. The specific operation is to clamp the sensor on the thin tissue of the body, such as the finger or earlobe. Figure 2As shown, the blood oxygen detection unit is an animal ear tag, and the red light and infrared light emitted by the light source will pass through the animal ear tissue. In the process of light passing through the animal ear tissue, it will be partially absorbed by the hemoglobin therein. The remaining unabsorbed light is received by the photodiode at the other end. The photodiode can convert the received optical signal into an electrical signal for subsequent data processing and analysis.

[0034] In the embodiment of the present application, the photoplethysmography technology can be used to achieve the goal of non-invasive blood oxygen saturation monitoring. This technology is harmless to animals and can carry out real-time and continuous health monitoring without interfering with the daily behavior patterns of animals. It has outstanding applicability in large-scale animal health management in animal husbandry.

[0035] Optionally, the blood oxygen detection unit also includes a signal amplifier and a filter; the signal amplifier is used to amplify the blood oxygen signal collected by the light detector, and the filter is used to filter the blood oxygen signal collected by the light detector.

[0036] Specifically, since the signal received by the light detector is very weak, it is necessary to amplify the signal to a suitable amplitude through a signal amplifier. At the same time, since interference factors such as ambient light will generate noise, high-frequency noise and interference can be filtered out through a filter, leaving low-frequency signals related to pulse and blood oxygen saturation.

[0037] Alternatively, if Figure 1 As shown, the data processing unit 200 includes a spectrum reconstruction module 201 and a calculation module 202. The spectrum reconstruction module 201 is used to perform principal component analysis and spectrum reconstruction on the blood oxygen signal to obtain a reconstructed spectrum; the calculation module 202 is used to determine the blood oxygen saturation of the animal according to the reconstructed spectrum.

[0038] Specifically, the spectrum reconstruction module can perform principal component analysis (PCA) on the collected multi-wavelength optical signals. PCA is a commonly used data dimensionality reduction method that can convert high-dimensional data (multiple wavelength optical signal data) into low-dimensional data (principal components) while retaining the main information of the data. For example, the collected 10 wavelength optical signal data is subjected to PCA to obtain the first few principal components, which represent the main change patterns of the optical signal. Through PCA, redundant information and noise in the data can be removed, and the most representative optical signal features can be selected according to the contribution rate of the principal components to obtain a more accurate reconstructed spectrum. These features can be used for subsequent blood oxygen saturation calculations to improve the accuracy of the calculation. The spectrum reconstruction module can eliminate the interference of tissue absorption by reconstructing multi-wavelength spectral signals to improve the measurement accuracy of blood oxygen saturation. Afterwards, by deeply analyzing and comparing the proportional relationship between the red light and infrared light waveform amplitudes, the calculation module can calculate the blood oxygen saturation value according to a specific algorithm.

[0039] Optionally, the continuous power supply unit 300 includes a friction nanogenerator, an energy storage module and an electric energy regulation module; the friction nanogenerator is used to convert the mechanical energy generated by animal activities into electrical energy; the energy storage module is used to store the electrical energy generated by the friction nanogenerator and provide a stable output current; the electric energy regulation module is used to adjust the working voltage of the energy storage module.

[0040] Specifically, continue to refer to Figure 1 , a triboelectric nanogenerator (TENG) is an energy conversion device based on the triboelectric effect and the electrostatic induction effect, which can convert mechanical energy into electrical energy. When two different materials rub against each other, due to their different electron affinities, electrons will be transferred from one material to the surface of another material, thereby generating equal but opposite charges on the surfaces of the two materials. When a charged material is close to an electrode, charges of opposite signs are induced on the electrode. If this electrode is connected to another electrode, a circuit is formed, and electrons will flow in the circuit, thereby generating current. Since the electric energy generated by the friction nanogenerator is unstable, it is necessary to convert the alternating current into direct current through a rectifier circuit for transmission and storage in the energy storage module. In an embodiment of the present application, a supercapacitor can be used as an energy storage device to efficiently store the electric energy generated by the friction nanogenerator and provide a continuous and stable power supply for the entire device.

[0041] Optionally, the friction nanogenerator comprises a friction material, cardboard, a spring, a copper foil tape, a double-sided tape and a wire; the friction material comprises a tetrafluoroethylene film and a polyvinyl chloride film, wherein the tetrafluoroethylene film is a negatively charged material and the polyvinyl chloride film is a positively charged material. The spring is installed between the friction material and the cardboard to drive the friction nanogenerator to work; the copper foil tape is laid on the surface of the friction material to collect the charge generated by friction; the wire is connected to the copper foil tape to transfer the charge to the energy storage module.

[0042] Specifically, Figure 3 As shown, the triboelectric nanogenerator includes a positive material 311, a negative material 312, a cardboard 313, a spring 314, a copper foil tape 315, a double-sided tape 316, and a wire 317. The positive material 311 can be a polyvinyl chloride (PVC) film, and the negative material can be a polytetrafluoroethylene (PTFE) film.

[0043] In the construction of the friction nanogenerator, tetrafluoroethylene film and polyvinyl chloride film constitute the core triboelectric layer material system. Due to their different electron affinity characteristics, the two will trigger the directional transfer of surface charges when rubbing against each other, thereby inducing the triboelectric effect, which constitutes the basic physical mechanism for the generation of electrical energy by the generator.

[0044] The spring component plays an irreplaceable and key role in the device architecture. It can provide appropriate elastic force between the PTFE film and the PVC film, enabling the two to achieve a stable and efficient elastic contact state. This elastic contact mode not only ensures that the two friction layers can continue to have sufficient and regular friction interaction, thereby maintaining the continuous generation of charge, but also optimizes the efficiency and stability of charge generation from a dynamic perspective. Once the spring is missing, the contact state between the PTFE film and the PVC film will be difficult to ensure, and abnormal conditions such as loose fitting or inability to achieve periodic friction may occur, which directly leads to significant interference in the charge generation process and seriously affects the power generation efficiency of the generator.

[0045] The copper foil tape acts as an electrode in the device, and its main task is to efficiently collect the charges generated during the friction process. The excellent conductivity of the copper material itself provides a reliable guarantee for the rapid transfer of charges from the friction layer to the electrode, ensuring that the charges can be promptly and smoothly extracted after they are generated, laying the foundation for the subsequent transmission and utilization of electric energy. The double-sided tape is used to achieve the stable fixation of the material, and its role is to maintain the relative position stability between the friction material and the copper foil. If there are defects in the fixing link, the material is very likely to move during the friction process, and this displacement will inevitably have a negative impact on the charge collection process, and will also undermine the stability and reliability of the overall operation of the generator. As a supporting structure, the cardboard provides a solid physical framework foundation for the entire generator, ensuring that each component can be accurately positioned and work together according to the pre-designed position and assembly method, and ensuring the integrity and functionality of the device from a macroscopic structural level. As the key transmission medium connecting the copper foil electrode, the wire builds a dedicated channel for the transmission of charges from the electrode to the subsequent circuit, and is the core connection hub for realizing the effective utilization of electric energy. Its performance and connection stability are directly related to the power transmission efficiency and reliability of the entire power generation system.

[0046] When the friction nanogenerator is running and generating electricity, the wire leading out from its output end (i.e., the copper foil electrode) is accurately connected to the input end of the rectifier bridge circuit to ensure that the alternating current generated by frictional power generation can be effectively introduced into the rectifier circuit system. The rectifier bridge circuit is composed of four diodes with unidirectional conductivity. Based on this characteristic of the diode, the input positive and negative half-cycle alternating current can be accurately rectified and converted into direct current in a single direction. The rectified direct current is transmitted through a wire and connected to a supercapacitor. With its unique energy storage principle and performance advantages, the supercapacitor can efficiently store the rectified electric energy so that it can be flexibly called according to needs in various subsequent application scenarios. At this point, the entire friction nanogenerator system has realized the complete process from power generation, transmission to storage, and achieved the functional goals expected by the device design. Optionally, the thickness of the tetrafluoroethylene film is 0.2 mm, and the thickness of the polyvinyl chloride film is 0.3 mm.

[0047] In the embodiment of the present application, with the help of friction nanogenerators, electrical energy can be continuously generated during the natural activities of animals to ensure a stable power supply. This self-powered feature not only effectively extends the service life of the equipment, but also completely avoids the complicated procedures of frequent battery replacement of traditional battery-powered equipment, and is extremely valuable in long-term monitoring scenarios. In addition, since the animal health monitoring device provided in the embodiment of the present application has a simple structural design and is mainly constructed of common materials such as tetrafluoroethylene, polyvinyl chloride, and copper foil tape, the manufacturing cost is relatively low, and it is easy to carry out mass production. When promoted and applied in large-scale farms, it shows excellent economic and practical characteristics, which can effectively meet the actual needs of farms and reduce operating costs.

[0048] In the embodiments of the present application, on the one hand, since the blood oxygen signal of the animal can be detected based on the optical absorption principle and the blood oxygen saturation of the animal can be determined according to the blood oxygen signal, the demand of modern animal husbandry management for real-time monitoring of the health status of the animal can be met; on the other hand, since it is possible to automatically generate electricity based on the mechanical energy generated by the animal's activities and provide electrical energy for the blood oxygen detection unit, the battery life problem of the device can be solved, ensuring that the device can operate stably for a long time.

[0049] The following is a detailed description of the process of using the above-mentioned animal health monitoring device to detect the blood oxygen saturation of animals: 1. Prepare well, including ensuring that the friction nanogenerator can work properly, the PPG sensor and spectrum reconstruction module are well connected, and the equipment has sufficient power reserve.

[0050] The friction nanogenerator is the power source of the entire detection system. Only when it can operate normally can it continuously provide the required power for subsequent components (such as PPG sensors, spectral reconstruction modules, etc.) to ensure the smooth progress of the entire detection process. Its normal operation means that the power generation process is stable, and the generated power can meet the power and voltage requirements of the equipment operation. There is no power generation failure due to component damage, poor contact, etc.

[0051] The PPG sensor is responsible for collecting photoelectric volumetric pulse wave signals, which is the basic data source for the subsequent calculation of blood oxygen saturation; while the spectrum reconstruction module can process and analyze the collected multi-band optical signal related data to further improve the measurement accuracy. Only when the two are well connected can the signals collected by the sensor be accurately transmitted to the spectrum reconstruction module for processing. If the connection is loose or broken, the signal transmission will be interrupted or errors will occur, affecting the final measurement results.

[0052] Sufficient power reserve can ensure that the equipment will not stop working due to insufficient power during the detection process. Especially in long-term monitoring scenarios, sufficient power can support the system to stably collect, analyze and transmit data, avoiding data loss or equipment damage due to sudden power outages.

[0053] 2. Fix the smart ear tag on the animal's ear, and adjust the position of the ear tag to make the PPG sensor fit the animal's skin to ensure the stability of signal acquisition.

[0054] The ear of an animal is a more suitable part for blood oxygen saturation detection, because the distribution of blood vessels in the ear makes it easier for the sensor to collect signals. After fixing the smart ear tag here, you also need to carefully adjust its position so that the PPG sensor can fit tightly to the animal's skin. Tight fit is critical, as it can reduce external light interference and ensure that the propagation path of light in the skin tissue is relatively stable, thereby ensuring that the collected signal is of high quality and good stability. If the sensor is not tightly attached to the skin, problems such as light leakage and uneven scattering of light signals may occur, causing the collected signal to fluctuate greatly and reduce accuracy.

[0055] 3. Start the ear tag system, and the system will begin to collect and analyze the animal's blood oxygen saturation data in real time. The measurement data is transmitted to the monitoring center through the wireless communication module.

[0056] After starting the ear tag system, all components begin to work together and enter the normal operating state.

[0057] After being activated, the ear tag system will use the PPG sensor to collect photoelectric volume pulse wave signals that reflect the animal's blood oxygen status in real time according to the preset program, and then analyze and process these signals through the built-in algorithm to extract characteristic information related to blood oxygen saturation, thereby calculating the blood oxygen saturation value.

[0058] With the help of the wireless communication module, the collected and analyzed blood oxygen saturation data is sent to the monitoring center. The wireless communication module frees data transmission from the constraints of cables, making it convenient for long-distance data transmission in a large area such as a farm, and making it easier for staff to centrally obtain and manage the blood oxygen saturation data of multiple animals in the monitoring center without having to check on each animal, thereby improving management efficiency.

[0059] 4. Based on the monitoring results, the system will automatically correct the measurement data according to the spectral reconstruction algorithm and output the animal's current blood oxygen saturation value.

[0060] The spectral reconstruction algorithm uses the correlation characteristics of multi-band optical signals to further optimize and correct the collected raw measurement data. In the actual measurement process, the measurement data may be affected by various factors such as changes in the optical properties of the animal's tissues and interference from external ambient light, resulting in certain errors in the measurement data. The spectral reconstruction algorithm can identify and correct these errors, making the data more accurately reflect the animal's true blood oxygen saturation.

[0061] After the above corrections, the system finally outputs the accurate blood oxygen saturation value of the animal at the current moment. The staff can judge the health status of the animal based on this value, such as whether there are problems such as hypoxia, and then take corresponding breeding management measures (such as adjusting the breeding environment, conducting disease diagnosis and treatment, etc.), providing strong data support for the health management of animals in animal husbandry.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An animal health monitoring device, characterized in that: include: Blood oxygen detection unit, data processing unit and continuous power supply unit; The blood oxygen detection unit is communicatively connected to the data processing unit, and the continuous power supply unit is electrically connected to the blood oxygen detection unit; The blood oxygen detection unit is used to detect the blood oxygen signal of the animal based on the optical absorption principle; The data processing unit is used to determine the blood oxygen saturation of the animal according to the blood oxygen signal; The continuous power supply unit is used to automatically generate electricity based on the mechanical energy generated by animal activities and provide electrical energy for the blood oxygen detection unit.

2. The animal health monitoring device according to claim 1, characterized in that: The blood oxygen detection unit includes a light source and a light detector; the light source is used to emit red light and infrared light to the animal body tissue, and the light detector is used to receive the light passing through the animal body tissue and generate the blood oxygen signal according to the light.

3. The animal health monitoring device according to claim 2, characterized in that: The blood oxygen detection unit is an animal ear tag; the light source is used to emit red light and infrared light to the animal ear tissue, and the light detector is used to receive the light passing through the animal ear tissue and generate the blood oxygen signal according to the light.

4. The animal health monitoring device according to claim 2, characterized in that: The light detector is a photodiode.

5. The animal health monitoring device according to claim 2, characterized in that: The blood oxygen detection unit also includes a signal amplifier and a filter; the signal amplifier is used to amplify the blood oxygen signal collected by the light detector, and the filter is used to filter the blood oxygen signal collected by the light detector.

6. The animal health monitoring device according to claim 1, characterized in that: The data processing unit includes a spectrum reconstruction module and a calculation module; The spectrum reconstruction module is used to perform principal component analysis and spectrum reconstruction on the blood oxygen signal to obtain a reconstructed spectrum; The calculation module is used to determine the blood oxygen saturation of the animal according to the reconstructed spectrum.

7. The animal health monitoring device according to claim 1, characterized in that: The continuous power supply unit includes a friction nanogenerator, an energy storage module and an electric energy regulation module; The friction nanogenerator is used to convert the mechanical energy generated by animal activities into electrical energy; The energy storage module is used to store the electric energy generated by the friction nanogenerator and provide a stable output current; The electric energy regulation module is used to adjust the operating voltage of the energy storage module.

8. The animal health monitoring device according to claim 7, characterized in that: The friction nanogenerator comprises friction material, cardboard, spring, copper foil tape and wire; The spring is installed between the friction material and the cardboard to drive the friction nanogenerator to work; The copper foil tape is laid on the surface of the friction material to collect the electric charges generated by friction; The wire is connected to the copper foil tape and is used to transfer charges to the energy storage module.

9. The animal health monitoring device according to claim 8, characterized in that: The friction material comprises a tetrafluoroethylene film and a polyvinyl chloride film, wherein the tetrafluoroethylene film is a negatively charged material and the polyvinyl chloride film is a positively charged material.

10. The animal health monitoring device according to claim 9, characterized in that: The thickness of the tetrafluoroethylene film is 0.2 mm, and the thickness of the polyvinyl chloride film is 0.3 mm.

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