Real-time rodent health monitoring and rodent breeding environment control device based on acoustic characteristics

Abstract

This utility model discloses a device for real-time mouse health monitoring and mouse breeding environment control based on acoustic characteristics, belonging to the field of experimental animal breeding management technology. It includes a structural fixing component 1, comprising an upper fixing frame 101, a lower fixing base 102, four columns 104, an extension plate 105, and a disc-shaped slot 103. The four columns 104 are vertically connected between the upper fixing frame 101 and the lower fixing base 102, with a sound-collecting plate 201 and the extension plate 105 inserted between the columns 104. The disc-shaped slot 103 is disposed inside the upper fixing frame 101 and the lower fixing base 102. An acoustic monitoring device 2 includes a sound-collecting plate 201 and a sound-analyzing device 202. A variable frequency ventilation unit 4 is connected to the columns 104 via pipes. A temperature control device 3 is also included. This utility model significantly improves the sensitivity of collecting weak sounds such as mouse coughs through a three-layer composite sound-collecting plate structure, realizing intelligent linkage between acoustic monitoring and environmental control. It can automatically stop ventilation and precisely adjust the temperature when an abnormality is detected.

Description

Technical Field

[0001] This utility model relates to the field of laboratory animal breeding and management technology, and is a device for real-time rat health monitoring and rat breeding environment control based on acoustic characteristics. Background Technology

[0002] In life science research, mice and rats serve as core experimental animal models, and their health status directly affects the reliability of experimental results. Current technologies primarily rely on manual virological detection (e.g., CN210746677U) or monitoring systems based on multi-parameter sensors (e.g., CN106943132A) for monitoring the health of experimental animals. However, the former suffers from poor real-time performance and low efficiency, while the latter suffers from insufficient model generalization ability due to the susceptibility of sensor data to environmental interference (e.g., fluctuations in cage temperature and humidity, animal activity noise).

[0003] Specifically, while the livestock animal health monitoring system disclosed in CN210746677U incorporates machine learning analysis, it requires complex data processing equipment, resulting in high costs for large-scale application. The multi-parameter monitoring system proposed in CN106943132A, relying on physiological sensors, is prone to signal crosstalk in intensive animal farming environments and struggles to capture the subtle acoustic characteristics of early respiratory diseases. Therefore, there is an urgent need for a low-cost, high-sensitivity acoustic feature monitoring device that, combined with environmental control, achieves closed-loop control of experimental animal health management. Utility Model Content

[0004] The purpose of this invention is to provide a real-time rat health monitoring and rat breeding environment control device based on acoustic characteristics. It improves the signal-to-noise ratio of weak biological acoustic signals through directional sound wave enhancement technology, and achieves dynamic balance of the breeding microenvironment by combining a modular environmental control system, thus solving the problems of monitoring lag, high data noise and inconvenient maintenance in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A real-time mouse health monitoring and mouse breeding environment control device based on acoustic characteristics is characterized by comprising a structural fixing assembly, including an upper fixing frame, a lower fixing base, four columns, an extension plate, and a disc-shaped slot; the upper fixing frame and the lower fixing base are respectively connected by a front limiting slide plate, a rear limiting slide plate, and a lead screw; the four columns are vertically connected between the upper fixing frame and the lower fixing base, and a sound collecting plate and an extension plate are inserted between the columns; the disc-shaped slot is disposed inside the upper fixing frame and the lower fixing base for fixing the experimental mouse cage;

[0007] An acoustic monitoring device includes a sound collecting plate and a sound analyzing device; the sound collecting plate is installed between adjacent columns, and the sound analyzing device is encapsulated on the top of the upper fixed frame and connected to the sound collecting plate for signal transmission;

[0008] The variable frequency ventilation unit is connected to the column via ductwork.

[0009] The temperature control device includes a temperature sensor and a ceramic heating lamp, which are installed inside the rat cage.

[0010] The sound-collecting board is composed of an outer acrylic sheet, a middle aerogel layer, and an inner PC sheet, and the three layers are fixed together by adhesive bonding.

[0011] The expansion plate and the column are slidably connected by a slide rail.

[0012] One of the columns has ventilation holes on its surface, and the ventilation holes are connected to the pipes of the variable frequency ventilation unit through a snap-fit ​​structure.

[0013] The sound analysis device integrates a signal processing chip. Its input end is electrically connected to the acoustic-to-electric conversion module of the sound collecting board, and its output end is electrically connected to the control unit of the variable frequency ventilation unit and the PID controller of the temperature control device.

[0014] Both the front and rear limit slide plates are provided with strip grooves. The lead screw passes through the strip grooves and is locked with a nut to realize the adjustment of the distance between the upper fixed frame and the lower fixed base.

[0015] The number of lead screws is three.

[0016] The four columns are vertically connected between the front limiting slide plate and the rear limiting slide plate of the fixed frame and the lower fixed base.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention significantly improves the sensitivity of collecting weak sounds such as mouse coughs through a three-layer composite sound-collecting plate structure, achieving intelligent linkage between acoustic monitoring and environmental control. It can automatically stop ventilation and precisely adjust the temperature when an abnormality is detected. The modular and adjustable design adapts to different cage sizes and facilitates maintenance. The four-column frame structure ensures the stability of the device, and the overall standardized design reduces costs and facilitates widespread application. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal three-dimensional structure of this utility model;

[0021] Figure 3 This is a structural diagram of the upper fixed frame and the lower fixed base;

[0022] Figure 4 This is a flowchart of the acoustic testing method;

[0023] In the diagram: 1. Structural fixing component; 2. Acoustic monitoring device; 3. Temperature control device; 4. Variable frequency ventilation unit; 101. Upper fixing frame; 102. Lower fixing base; 103. Disc-shaped slot; 104. Column; 105. Extension plate; 10101. Front limit slide plate; 10102. Rear limit slide plate; 10103. Lead screw; 201. Sound collecting plate; 202. Sound analysis device; 301. Temperature sensor; 302. Ceramic heating lamp. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 4 ,

[0026] A real-time mouse health monitoring and mouse breeding environment control device based on acoustic characteristics is characterized by comprising a structural fixing component 1, including an upper fixing frame 101, a lower fixing base 102, four columns 104, an extension plate 105, and a disc-shaped slot 103; the upper fixing frame 101 and the lower fixing base 102 are respectively connected by a front limiting slide plate 10101, a rear limiting slide plate 10102, and a lead screw 10103; the four columns 104 are vertically connected between the upper fixing frame 101 and the lower fixing base 102, and a sound collecting plate 201 and an extension plate 105 are inserted between the columns 104; the disc-shaped slot 103 is disposed inside the upper fixing frame 101 and the lower fixing base 102 for fixing the experimental mouse cage;

[0027] Acoustic monitoring device 2 includes a sound collecting plate 201 and a sound analyzing device 202; the sound collecting plate 201 is installed between adjacent columns 104, and the sound analyzing device 202 is encapsulated on the top of the upper fixed frame 101 and is signal-connected to the sound collecting plate 201.

[0028] The variable frequency ventilation unit 4 is connected to the column 104 through a pipe;

[0029] The temperature control device 3 includes a temperature sensor 301 and a ceramic heating lamp 302, which are installed inside the rat cage.

[0030] The sound collecting board 201 is composed of an outer acrylic board, a middle aerogel layer and an inner PC board. The three-layer structure is fixed by adhesive bonding.

[0031] The expansion board 105 and the column 104 are slidably connected by a slide rail, which facilitates cleaning or replacement of the sound collecting board 201.

[0032] One of the columns 104 has ventilation holes on its surface, and the ventilation holes are connected to the pipes of the variable frequency ventilation unit 4 through a snap-fit ​​structure.

[0033] The sound analysis device 202 integrates a signal processing chip. Its input end is electrically connected to the sound-to-electric conversion module of the sound collecting board 201, and its output end is electrically connected to the control unit of the variable frequency ventilation unit 4 and the PID controller of the temperature control device 3.

[0034] Both the front limit slide plate 10101 and the rear limit slide plate 10102 are provided with strip grooves. The lead screw 10103 passes through the strip grooves and is locked by a nut to realize the adjustment of the distance between the upper fixed frame 101 and the lower fixed base 102.

[0035] There are three 10103 lead screws. This results in higher structural stability.

[0036] Four uprights 104 are vertically connected between the front limiting slide plate 10101 and the rear limiting slide plate 10102 of the fixed frame 101 and the lower fixed base 102. This allows adjustment of the front-to-back spacing of the uprights 104, thereby accommodating different sizes of laboratory mouse cages by replacing different extension plates 105.

[0037] The working principle of this utility model is as follows:

[0038] Working principle of the device

[0039] Acoustic signal acquisition and processing

[0040] The sound waves of the mouse's activity in the cage are reflected and focused by the acrylic plate of the sound collecting plate 201. After the environmental noise is filtered by the aerogel layer, the sound waves are converted into electrical signals by the piezoelectric sensor on the back of the PC plate.

[0041] The electrical signal is transmitted to the signal processing chip of the sound analysis device 202, and after amplification and filtering, a time-frequency domain acoustic graph is generated.

[0042] The chip identifies abnormal acoustic features (such as 2-4kHz high-frequency pulses of a cough) and outputs a trigger signal.

[0043] Environmental regulation trigger

[0044] When abnormal acoustic features are identified, the output of the sound analysis device 202 sends a shutdown command to the variable frequency ventilation unit 4, and the ventilation unit immediately shuts down the airflow circulation to prevent the spread of pathogens.

[0045] The PID controller of the temperature control device 3 is synchronously triggered to adjust the power of the ceramic heating lamp 302 according to the real-time data of the temperature sensor 301, so as to maintain a constant temperature (22±1℃) inside the rat cage.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for real-time mouse health monitoring and mouse breeding environment regulation based on acoustic characteristics, characterized in that, The structure includes a fixing component (1), comprising an upper fixing frame (101), a lower fixing base (102), four columns (104), an extension plate (105), and a disc-shaped slot (103); the upper fixing frame (101) and the lower fixing base (102) are connected by a front limiting slide plate (10101), a rear limiting slide plate (10102), and a lead screw (10103), respectively; the four columns (104) are vertically connected between the upper fixing frame (101) and the lower fixing base (102), and a sound collecting plate (201) and an extension plate (105) are inserted between the columns (104); the disc-shaped slot (103) is disposed inside the upper fixing frame (101) and the lower fixing base (102) for fixing the experimental mouse cage; The acoustic monitoring device (2) includes a sound collecting plate (201) and a sound analyzing device (202); the sound collecting plate (201) is installed between adjacent columns (104), and the sound analyzing device (202) is encapsulated on the top of the upper fixed frame (101) and connected to the sound collecting plate (201) for signal transmission. The variable frequency ventilation unit (4) is connected to the column (104) through a pipe; The temperature control device (3) includes a temperature sensor (301) and a ceramic heating lamp (302), which are installed inside the rat cage. 2.The real-time mouse health monitoring and mouse breeding environment regulating device based on acoustic features according to claim 1, wherein: The sound collecting board (201) is composed of an outer acrylic board, a middle aerogel layer and an inner PC board, and the three-layer structure is fixed by adhesive bonding. 3.The real-time mouse health monitoring and mouse breeding environment regulating device based on acoustic features according to claim 1, characterized in that: The extension plate (105) and the column (104) are slidably connected by a slide rail. 4.The real-time mouse health monitoring and mouse breeding environment regulating device based on acoustic features according to claim 1, wherein: One of the columns (104) has ventilation holes on its surface, and the ventilation holes are connected to the pipes of the variable frequency ventilation unit (4) through a snap-fit ​​structure. 5.The real-time mouse health monitoring and mouse breeding environment regulating device based on acoustic features according to claim 1, wherein: The sound analysis device (202) integrates a signal processing chip. Its input end is electrically connected to the sound-to-electric conversion module of the sound collecting board (201), and its output end is electrically connected to the control unit of the variable frequency ventilation unit (4) and the PID controller of the temperature control device (3). 6.The real-time mouse health monitoring and mouse breeding environment regulating device based on acoustic features according to claim 1, wherein: Both the front limiting slide plate (10101) and the rear limiting slide plate (10102) are provided with strip grooves. The lead screw (10103) passes through the strip grooves and is locked by a nut to realize the adjustment of the distance between the upper fixed frame (101) and the lower fixed base (102). 7.The real-time mouse health monitoring and mouse breeding environment regulating device based on acoustic features according to claim 1, wherein: The number of lead screws (10103) is three. 8.The real-time mouse health monitoring and mouse breeding environment regulating device based on acoustic features according to claim 1, wherein: The four columns (104) are vertically connected between the front limiting slide plate (10101) and the rear limiting slide plate (10102) of the fixed frame (101) and the lower fixed base (102).

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