An animal activity monitoring method, controller and system

Abstract

The present invention relates to a method, a controller and a system for monitoring the activity level of animals. The method includes obtaining movement data and pressure data of a monitored animal within a preset area. Among them, the preset area includes a first preset area and a second preset area. The movement data includes pixel point coordinate movement data collected by an infrared thermal imaging sensor and movement data collected by an ultrasonic sensor. Calculate the activity level of the monitored animal in the preset area according to the movement data and the pressure data. Display the activity level. The present invention collects monitoring data of animals through multiple sensors, thereby calculating the activity level of the animals. This method has a simple data acquisition method, a convenient calculation method, and the cage structure adopted has a low cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of animal breeding, and particularly relates to a method, a controller and a system for monitoring the activity degree of animals. Background Art

[0002] In the medical or biological field, biotechnology research and development is often required. In the research and development process, mice are usually used as experimental subjects. The reason for using mice in experiments is that the gene sequence of mice is similar to that of humans. Some medical scientific research and clinical experiments are completed with mice. It is very good to use mice for genetic experiments. Because its whole genome has a very high similarity with that of humans, many diseases that are difficult to cure in humans can find similar traits in mice, so as to conduct experiments to discover disease-causing genes. Many experiments require statistical analysis, which requires a certain number. Rats and mice, especially mice, can meet this requirement under artificial breeding conditions. For a well-bred strain experiment, the variety of experimental animals needs to be strictly controlled, which is easy to solve with mice. There is also the animal grade. Mice are mammals. Except for their small size, they are not inferior to other mammals in terms of evolutionary level. Their small size has instead become an advantageous condition for artificial breeding and feeding.

[0003] In the related art, ordinary mouse cages do not have the function of monitoring the activity degree of mice. Usually, a chip that can monitor the activity degree of mice is implanted into the mice. However, this method has a high trauma, often making the lifespan of the animal only maintain for two weeks after the implant is implanted, and the cost is expensive. Although mouse metabolic cages can monitor the activity degree of mice, they rely on a combination of multiple devices, such as infrared light speed and running wheels. The algorithms of these devices are complex, with a low fault tolerance rate, and the cost is expensive. Moreover, they cannot calculate the intensity of animal activities and can only calculate the displacement. Among them, although the algorithm of the running wheel is simple, the data obtained on the activity degree is very one-sided, only reflecting a part of the animal's activity behavior, and the result is not comprehensive. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art and provide a method, a controller and a system for monitoring the activity degree of animals, so as to solve the problems in the prior art that the algorithms of animal monitoring data are complex, the fault tolerance rate is low, the activity degree data is one-sided and incomplete.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A method for monitoring the activity degree of an animal, comprising:

[0006] Obtaining the movement data and pressure data of the monitored animal in a preset area; wherein, the preset area includes a first preset area and a second preset area; the movement data includes the pixel point coordinate movement data collected by an infrared thermal imaging sensor and the movement data collected by an ultrasonic sensor;

[0007] Calculate the activity level of the monitored animal in the preset area according to the mobile data and pressure data;

[0008] Display the activity level.

[0009] Furthermore, it further includes:

[0010] Obtain the respiratory metabolism monitoring data of the animal in the second preset area.

[0011] Furthermore, infrared thermal imaging sensors, ultrasonic sensors and pressure sensors are provided in both the first preset area and the second preset area;

[0012] The infrared thermal imaging sensor is provided with a preset number of pixel grids. Each pixel grid continuously captures the body temperature data of the animal image to obtain an infrared pixel set. After obtaining an infrared pixel set of a preset size, the activity route of the monitored animal is determined by the change in the coordinate position of the preset infrared pixel set;

[0013] Determine each displacement of the monitored animal through the change in the distance between the ultrasonic sensor and the animal;

[0014] Determine the intensity of the activity of the monitored animal through the unit time change rate of the reading of the pressure sensor.

[0015] Furthermore, since the area of the infrared high-temperature pixel set is small when the animal stands and the area of the infrared pixel set is large when the animal crawls, a preset first pixel set is set to represent the animal standing, and a preset second pixel set is set to represent the animal crawling;

[0016] Compare the area of the obtained infrared pixel set with the areas of the first pixel set and the second pixel set to evaluate the action information of the current animal.

[0017] Furthermore, the calculating the activity level of the monitored animal according to the mobile data and pressure data includes:

[0018] Combine the activity route and each displacement to determine the continuous displacement information of the monitored animal;

[0019] Combine the continuous displacement information, action information and the intensity of the activity to calculate the activity level of the monitored animal.

[0020] Furthermore, the infrared thermal imaging sensor is provided with 32*32 pixel grids.

[0021] An embodiment of the present application provides a controller, including:

[0022] A memory, on which an executable program is stored;

[0023] A processor for executing the executable program in the memory to implement the steps of the method according to any one of the above embodiments.

[0024] An embodiment of the present application provides an animal breeding cage, including: the controller provided in the above embodiment; and

[0025] A first cage body and a second cage body arranged side by side; the first cage body includes a first cage bottom and a first cage cover, the second cage body includes an inner cage body and an outer cage body, the inner cage body includes a second cage bottom and a second cage cover, and the outer cage body includes a third cage bottom and a third cage cover; both the first cage cover and the second cage cover are grid-shaped; the first cage bottom is hollowed out, and a receiving cavity is provided below the first cage bottom, and a collection box is provided in the receiving cavity; the collection box can extend into and out of the receiving cavity for collecting and taking out excrement; wherein, the internal space of the first cage body is larger than the internal space of the inner cage body;

[0026] An electric door is provided between the first cage body and the second cage body, and a circuit board is provided above the second cage cover. The circuit board is used to integrate the controller, and the circuit board is also provided with a motor and a wireless communication module; the motor is used to drive the electric door;

[0027] A first pressure sensor is provided outside the first cage bottom, a second pressure sensor is provided outside the second cage bottom, a first infrared thermal imaging sensor is provided above the first cage cover, and a second infrared thermal imaging sensor is provided above the second cage cover; the motor, the wireless communication module, the first pressure sensor, the second pressure sensor, the first infrared thermal imaging sensor, and the second infrared thermal imaging sensor are respectively connected to the controller.

[0028] Further, a carbon dioxide sensor is also provided inside the second cage cover, and the carbon dioxide sensor is connected to the controller.

[0029] An embodiment of the present application provides a

[0030] The beneficial effects that the present invention can achieve by adopting the above technical solutions include:

[0031] The present invention provides an animal activity monitoring method, a controller and a system. The method includes obtaining movement data and pressure data of a monitored animal in a preset area; wherein, the preset area includes a first preset area and a second preset area; the movement data includes pixel point coordinate movement data collected by an infrared thermal imaging sensor and movement data collected by an ultrasonic sensor; calculating the activity of the monitored animal in the preset area according to the movement data and the pressure data; and displaying the activity. The present invention calculates the activity of an animal by collecting the monitoring data of the animal through multiple sensors. The method for obtaining data is simple, the calculation method is convenient, and the adopted cage structure has a low cost. Brief Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0033] Figure 1 It is a schematic structural diagram of an animal breeding cage provided by the present invention;

[0034] Figure 2 It is a schematic structural diagram of a circuit board provided by the present invention;

[0035] Figure 3 It is a schematic step diagram of an animal activity monitoring method provided by the present invention;

[0036] Figure 4 It is a schematic structural diagram of a controller provided by the present invention. Detailed Embodiments

[0037] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following will describe the technical solutions of the present invention in detail. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0038] The following introduces a specific animal activity monitoring method, controller, and system provided in the embodiments of the present application with reference to the drawings.

[0039] As Figure 1 shown, the animal breeding cage provided in the embodiments of the present application includes a controller, and a first cage body 1 and a second cage body 2 arranged side by side;

[0040] The first cage body 1 includes a first cage bottom 11 and a first cage cover 12. The second cage body 2 includes an inner cage body 201 and an outer cage body 202. The inner cage body 201 includes a second cage bottom 21 and a second cage cover 22. The outer cage body 202 includes a third cage bottom 23 and a third cage cover 24. The first cage cover 12 and the second cage cover 22 are both grid-shaped. The first cage bottom 11 is hollowed out, and a receiving cavity 13 is provided below the first cage bottom 11. A collection box is provided in the receiving cavity 13. The collection box can extend into and withdraw from the receiving cavity 13 for collecting and taking out excrement. Among them, the internal space of the first cage body 1 is larger than the internal space of the inner cage body 201;

[0041] An electric door 3 is provided between the first cage body 1 and the second cage body 2, and a circuit board 221 is provided above the second cage cover 22. As Figure 2 shown, the circuit board 221 includes a motor 2211, a controller 2212, and a wireless communication module 2213; the motor 2211 is used to drive the electric door 3;

[0042] A first pressure sensor 2214 is provided outside the first cage bottom 11, a second pressure sensor 2215 is provided outside the second cage bottom 21, a first infrared thermal imaging sensor 2216 is provided above the first cage cover 12, and a second infrared thermal imaging sensor 2217 is provided above the second cage cover 22; the motor 2211, the wireless communication module 2213, the first pressure sensor 2214, the second pressure sensor 2215, the first infrared thermal imaging sensor 2216, and the second infrared thermal imaging sensor 2217 are respectively connected to the controller 2212.

[0043] Preferably, heat-insulating cotton is filled between the inner cage body 201 and the outer cage body 202. Specifically, heat-insulating cotton is filled between the bottom of the inner cage body 201 and the outer cage body 202, and heat-insulating cotton is filled between the other side walls of the inner cage body 201 and the outer cage body 202 except for the side wall adjacent to the electric door.

[0044] The working principle of the animal breeding cage is as follows: In this application, both the first cage cover 12 and the first cage bottom 11 of the first cage body 1 are ventilated structures, and an outer cage body 202 is further provided outside the inner cage body 201. The third cage bottom 23 and the third cage cover 24 of the outer cage body 202 are both solid structures, and the second cage bottom 21 of the inner cage body 201 is also a solid structure. Therefore, the temperature of the inner cage body 201 is higher than that of the first cage body 1, and the first cage bottom 11 is a hollow structure. Mice will not sleep in the place with a relatively wide hollow bottom, and will preferentially choose a warmer position. The design of this application is similar to the layout of a one-bedroom and one-living-room. The inner cage body 201 is equivalent to the bedroom, and the first cage body 1 is equivalent to the living room. The bottom of the bedroom is sealed, and for warmth preservation, heat-insulating cotton is provided between the inner cage body 201 and the outer cage body 202 in this application, which can keep the overall temperature of the bedroom warm, but the space is small. The bottom of the living room is made of stainless steel wire mesh and is hollow, with a relatively low temperature and a large space. Therefore, in this application, through structural and temperature guidance, mice will choose the bedroom for rest. And because the space of the bedroom is limited, they will not excrete feces in the sleeping position, so they will tend to go to the living room to excrete feces. In addition, the food opening and the drinking water opening (diet area) are also designed in another corner of the living room. Thus, the purpose of partitioning the sleeping area, excretion area, and diet area is achieved.

[0045] The collection box provided in this application can extend into and be withdrawn from the accommodation cavity 13 for collecting and removing excrement; this enables the cleaning of feces without the need to open the cage body to remove the mouse, and only requires withdrawing the collection box at the bottom for rinsing. The electric door 3 provided in this application facilitates centralized sleep monitoring in the sleep area. The sleep area is designed with a controllable opening and closing door, which can convert the bedroom environment into a sealed one for scientifically detecting the vital sign data of the mouse.

[0046] Among them, the vital sign data of the mouse includes the movement and body temperature data of the mouse. The first pressure sensor 2214 and the second pressure sensor 2215 in this application can detect the movement of the mouse. For example, when the mouse moves into the first cage body 1, the first pressure sensor 2214 will show a reading. When it moves into the inner cage body 201, the second pressure sensor 2215 will show a reading. The first infrared thermal imaging sensor 2216 can detect the body temperature of the mouse in the first cage body 1, and the second infrared thermal imaging sensor 2217 can detect the body temperature of the mouse in the inner cage body 201.

[0047] It can be understood that when the experimenter wants to detect the vital sign data of the mouse, the electric door 3 can be closed first and then the detection can be carried out. The experimenter can set the opening and closing of the electric door 3 through the remote control switch. After the experimenter presses the remote control, the wireless communication module 2213 receives the control signal and sends it to the controller 2212. The controller 2212 controls the motor 2211 to drive the electric door 3 according to the control signal. Among them, the electric door 3 can be a rotary electric door 3 or a sliding electric door 3.

[0048] In some embodiments, a carbon dioxide sensor 2218 is further provided inside the second cage cover 22, and the carbon dioxide sensor 2218 is connected to the controller 2212.

[0049] Specifically, the vital sign data of the mouse also includes the respiratory metabolism rate. Specifically, in this application, by detecting the change rate of the carbon dioxide volume concentration (ppm), specifically, the time required to accumulate an increase of 2000 ppm in the carbon dioxide volume concentration. The shorter the time, the higher the respiratory metabolism rate, and vice versa. The carbon dioxide sensor 2218 is located inside the stainless steel wire mesh at the top of the mouse cage bedroom, separated from the mouse by the stainless steel wire mesh, which is safe and convenient. The indoor carbon dioxide is read once every ten seconds, and a stable and continuous indoor carbon dioxide concentration value is output. At the same time, every hour when the mouse is in the bedroom, the bedroom door is closed once, and the time for the indoor mouse to accumulate 2000 ppm is measured, and the respiratory metabolism rate of the mouse per hour is output. After the detection is completed, the bedroom door is opened. Through testing, the average detection time (i.e., the door closing time) is 5 minutes each time, which has little impact on the normal life of the mouse.

[0050] Among them, such as Figure 3As shown, the method for monitoring animal activity implemented by the controller includes:

[0051] S101, obtaining the movement data and pressure data of the monitored animal in the preset area; wherein, the preset area includes a first preset area and a second preset area; the movement data includes the pixel point coordinate movement data collected by the infrared thermal imaging sensor and the movement data collected by the ultrasonic sensor;

[0052] S102, calculating the activity of the monitored animal in the preset area according to the movement data and the pressure data;

[0053] S103, displaying the activity.

[0054] It can be understood that the first preset area in this application corresponds to the first cage 1, and the second preset area corresponds to the inner cage 201 of the second cage 2.

[0055] Preferably, it further includes:

[0056] Obtaining the respiratory metabolism monitoring data of the animal in the second preset area.

[0057] Among them, the first preset area is the first cage 1 or can be said to be the living room, and the second preset area is the area of the inner cage 201 or can be said to be the bedroom. In this application, the movement data and pressure data of the mouse in the total preset area are collected; the activity of the monitored animal is calculated by a preset algorithm, and the calculated activity is displayed. This application can also obtain the respiratory metabolism rate of the mouse by collecting the carbon dioxide volume concentration in the bedroom.

[0058] In some embodiments, infrared thermal imaging sensors, ultrasonic sensors and pressure sensors are provided in both the first preset area and the second preset area;

[0059] The infrared thermal imaging sensor is provided with a preset number of pixel grids. Each pixel grid continuously captures the body temperature data of the animal image to obtain an infrared pixel set. After obtaining an infrared pixel set of a preset size, the activity route of the monitored animal is determined by the change in the coordinate position of the preset infrared pixel set;

[0060] Each displacement of the monitored animal is determined by the change in the distance between the ultrasonic sensor and the animal;

[0061] The intensity of the activity of the monitored animal is determined by the unit time change rate of the reading of the pressure sensor.

[0062] It can be understood that there are two ultrasonic sensors, two infrared thermal imaging sensors, and two pressure sensors in this application, which are respectively arranged in the bedroom and the living room to monitor the movement of the mouse from the bedroom to the living room or from the living room to the bedroom, and can also monitor the movement of the mouse in the living room or the bedroom. Among them, the two ultrasonic sensors are respectively arranged on the top of the first cage cover 12 and the top of the second cage cover 22. It should be noted that this application can preset a pixel set of a certain area according to the size of the animal. For example, mice usually have 49 grids, and golden hamsters usually have 81 grids, etc.

[0063] Preferably, according to the fact that the area of the infrared high-temperature pixel set is small when the animal stands and the area of the infrared pixel set is large when the animal crawls, the first pixel set is preset to represent the animal standing, and the second pixel set is preset to represent the animal crawling;

[0064] The area of the obtained infrared pixel set is compared with the areas of the first pixel set and the second pixel set to evaluate the motion information of the current animal.

[0065] In some embodiments, calculating the activity level of the monitored animal according to the movement data and the pressure data includes:

[0066] Combining the activity route and each displacement to determine the continuous displacement information of the monitored animal;

[0067] Combining the continuous displacement information, the motion information, and the intensity of the activity to calculate the activity level of the monitored animal.

[0068] Specifically, the specific calculation process of the preset algorithm is as follows:

[0069] First, the data analysis principle of the infrared thermal imaging sensor: For example, the area of the standing pixel set of a mouse is 25±10 pixels, the area of the crawling pixel set is 80±20 pixels, and the temperature information of 32*32 pixels is recognized. The pixel grids with a temperature greater than 35°C are counted and statistically analyzed to determine whether the current state of the mouse is standing, crawling, or in an intermediate state. The arithmetic center point of the high-temperature pixel grids is the current coordinate of the animal. The movement of the animal's coordinates per second is counted as the movement route and movement distance of the animal.

[0070] Second, the ultrasonic sensor calculates the number of times the animal moves per second, such as 0 times, 1 time, 2 times, etc. per second.

[0071] Third: The pressure sensor readings return 5 values per second, and the change rate (amplitude and change rate) of these values is statistically calculated per second. For example, at 1 s: (0, -1, 0, 2, 1), at 2 s: (0, -1, 1, -2, 2), at 3 s: (0, 5, 10, -10, -20), at 4 s: (10, 20, 3, -8, 2), ……). It is possible to judge the action of the mouse from a calm state to completing a jump through the oscillation frequency and change rate. A numerical value of the intensity of the mouse's movement (standard deviation with respect to the origin 0) can be obtained every second.

[0072] As shown in Table 1.

[0073]

[0074]

[0075] From this, continuous displacement information, action information, and intensity information of the mouse per second can be obtained. Analyze the evaluation conditions for each different state of the mouse, such as the final table. Among them, each preset state also has its different scoring according to its activity level. The final activity level is the sum of the scores of all states.

[0076] In some embodiments, the infrared thermal imaging sensor is provided with 32 * 32 pixel grids.

[0077] Specifically, in this solution, multi-dimensional activity level monitoring data can be obtained through infrared imaging, ultrasonic sensors, and pressure sensors. Among them, the infrared thermal imaging sensor is 32 × 32 pixels, and each pixel grid will transmit back continuous temperature information. By obtaining a preset infrared pixel set (the size of the pixel set can be preset according to the volume of the mouse, such as 2 × 2, 5 × 5, etc.), the movement route information of the mouse can be judged by monitoring the change in the coordinate positions of the high-temperature pixel set. Each displacement of the mouse can be monitored by the ultrasonic sensor. Combining the data of infrared imaging and ultrasonic sensors can obtain continuous displacement and action information of the mouse (such as standing). The pressure sensor can judge the intensity of the mouse's activity by monitoring the pressure readings in real time. For example, when the mouse jumps, the oscillation amplitude of the pressure sensor readings is relatively large, while when the mouse walks normally, the oscillation amplitude of the pressure sensor readings is relatively small. When the mouse stays still, the oscillation of the pressure sensor readings tends to be stationary. Thus, combining the activity trajectory, actions, and intensity of the mouse, the activity level of the mouse can be comprehensively calculated. (The sensor readings are transmitted 4 - 10 readings per second to obtain continuous data information.)

[0078] As Figure 4 shown, the present application provides a controller, including:

[0079] A memory 401, on which an executable program is stored;

[0080] A processor 402 for executing the executable program in the memory 401 to implement the steps of the method provided in any of the above embodiments.

[0081] An embodiment of the present application provides an animal activity monitoring system, including the animal breeding cage provided in the above embodiment; and

[0082] A server for receiving the activity data of the monitored animal;

[0083] A monitoring terminal for receiving and displaying the activity data.

[0084] Specifically, in the present application, through a specially made animal breeding cage, an ultrasonic sensor, an infrared thermal imaging sensor, and a pressure sensor are provided on the animal breeding cage. The controller calculates the collected data using a preset algorithm to obtain the activity data of the animal, and sends the activity data to the server. The server sends the activity data to the monitoring terminal, and the monitoring terminal displays the activity data. The experimenter understands the situation of the animal by viewing the activity data.

[0085] In summary, the present invention provides an animal activity monitoring method, a controller, and a system. The method includes obtaining movement data and pressure data of a monitored animal in a preset area; wherein the preset area includes a first preset area and a second preset area; the movement data includes pixel point coordinate movement data collected by an infrared thermal imaging sensor and movement data collected by an ultrasonic sensor; calculating the activity degree of the monitored animal in the preset area according to the movement data and the pressure data; and displaying the activity degree. The present invention collects the monitoring data of the animal through multiple sensors, thereby calculating the activity degree of the animal. The method for obtaining data is simple, the calculation method is convenient, and the adopted cage structure has a low cost.

[0086] It can be understood that the method embodiment provided above corresponds to the above device embodiment, and the corresponding specific content can be mutually referred to and will not be repeated here.

[0087] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) containing computer-usable program codes.

[0088] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the flows and / or blocks in the flowchart and / or block diagram can also be implemented. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0089] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including the instruction method, and the instruction method implements the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0090] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0091] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims described.

Claims

1. A method for monitoring the activity level of an animal, characterized in that, Comprising: Obtaining movement data and pressure data of a monitored animal within a preset area; wherein, the preset area includes a first preset area and a second preset area; the movement data includes pixel point coordinate movement data collected by an infrared thermal imaging sensor and movement data collected by an ultrasonic sensor; Calculating the activity level of the monitored animal within the preset area according to the movement data and the pressure data; Displaying the activity level; Obtaining respiratory metabolism monitoring data of the animal within the second preset area; Both the first preset area and the second preset area are provided with an infrared thermal imaging sensor, an ultrasonic sensor, and a pressure sensor; The infrared thermal imaging sensor is provided with a preset number of pixel grids, and each pixel grid continuously captures body temperature data of the animal image to obtain an infrared pixel set. After obtaining an infrared pixel set of a preset size, the activity route of the monitored animal is determined by the change in the coordinate position of the preset infrared pixel set; Determining each displacement of the monitored animal through the change in the distance between the ultrasonic sensor and the animal; Determining the intensity of the activity of the monitored animal through the unit time change rate of the reading of the pressure sensor; According to the fact that the area of the infrared high-temperature pixel set is small when the animal stands and the area of the infrared pixel set is large when the animal crawls, a preset first pixel set represents the animal standing, and a preset second pixel set represents the animal crawling; Evaluating the action information of the current animal by comparing the area of the obtained infrared pixel set with the areas of the first pixel set and the second pixel set; Calculating the activity level of the monitored animal according to the movement data and the pressure data, including: Combining the activity route and each displacement to determine the continuous displacement information of the monitored animal; Calculating the activity level of the monitored animal by combining the continuous displacement information, the action information, and the intensity of the activity.

2. The method according to claim 1, wherein The infrared thermal imaging sensor is provided with 32*32 pixel grids.

3. A controller, characterized in that, Comprising: A memory having an executable program stored thereon; A processor for executing the executable program in the memory to implement the steps of the method according to any one of claims 1-2.

4. An animal breeding cage, characterized in that, Comprising: The controller according to claim 3; And A first cage body and a second cage body arranged side by side; the first cage body includes a first cage bottom and a first cage cover, the second cage body includes an inner cage body and an outer cage body, the inner cage body includes a second cage bottom and a second cage cover, and the outer cage body includes a third cage bottom and a third cage cover; both the first cage cover and the second cage cover are in a grid shape; the first cage bottom is hollowed out, and a receiving cavity is provided below the first cage bottom, and a collection box is provided in the receiving cavity; the collection box can extend into and be pulled out of the receiving cavity for collecting and taking out excrement; wherein, the internal space of the first cage body is larger than the internal space of the inner cage body; An electric door is provided between the first cage body and the second cage body, and a circuit board is provided above the second cage cover. The circuit board is used to integrate the controller, and the circuit board is further provided with a motor and a wireless communication module; the motor is used to drive the electric door; A first pressure sensor is provided on the outer side of the first cage bottom, a second pressure sensor is provided on the outer side of the second cage bottom, a first infrared thermal imaging sensor is provided above the first cage cover, and a second infrared thermal imaging sensor is provided above the second cage cover; the motor, the wireless communication module, the first pressure sensor, the second pressure sensor, the first infrared thermal imaging sensor, and the second infrared thermal imaging sensor are respectively connected to the controller.

5. The animal breeding cage according to claim 4, wherein A carbon dioxide sensor is further provided on the inner side of the second cage cover, and the carbon dioxide sensor is connected to the controller.

6. An animal activity monitoring system, comprising: The animal breeding cage as claimed in claim 4; and A server for receiving the activity data of the monitored animal; A monitoring terminal for receiving and displaying the activity data.

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