Automatic measuring device for comprehensive environment of hog house

By designing an automated patrol robot in the pig house, combining sensors and image analysis, the problem of low efficiency of traditional manual patrol is solved, real-time monitoring and automatic adjustment of the pig house environment is realized, and breeding efficiency and safety are improved.

CN223122269UActive Publication Date: 2025-07-18LUQUAN RENHE BREEDING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422970751.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-07-18
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

Traditional pig house environmental monitoring relies on manual inspection, which is inefficient and cannot achieve continuous and real-time monitoring, incomplete data collection, slow response speed, and security risks.

Method used

Design a comprehensive environmental automatic measurement device for pig houses, including hanging rails and breeding inspection machines, equipped with sensors, cameras, image analysis modules, sound recognition modules and programmable logic controllers, to realize automated data acquisition and environmental regulation, and transmit data in real time through wireless networks.

Benefits of technology

Real-time monitoring and automatic adjustment of the pig house environment is realized, labor workload is reduced, breeding efficiency is improved, labor costs are reduced, scientific decision-making basis is provided, and farm safety and intelligence are improved.

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Abstract

The utility model relates to the technical field of dam spreading pig breeding, and discloses a pig house comprehensive environment automatic measuring device, which comprises a hanger rail and a breeding inspection machine, and the breeding inspection machine comprises a conveyor running on the hanger rail and an inspection box; an inspection camera, a programmable logic controller, an image analysis module, a sound recognition module, an environment sensing module, a communication module and a power supply module are mounted on the inspection box; the environment sensing module comprises a temperature and humidity sensor, an ammonia gas sensor and a carbon dioxide sensor; the environment parameters, such as temperature, humidity, ammonia gas and carbon dioxide concentration, of the pig house are monitored in real time through the sensors and automatically adjusted according to needs so as to maintain the optimal breeding environment, the breeding environment is optimized, healthy growth of pigs is promoted, diseases are reduced, the breeding quality is improved, an automatic system reduces dependence on manual inspection and management, and the breeding efficiency is improved. And the labor cost is reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of Sabah pig breeding, and particularly relates to an automatic measurement device for the comprehensive environment of a pigsty. Background Art

[0002] The significance of measuring the comprehensive environment of a Sabah pig breeding pigsty lies in that by monitoring the environmental parameters of the pigsty, the healthy growth of pigs can be ensured, the breeding efficiency can be improved, the occurrence of diseases can be reduced, and the breeding management can be optimized.

[0003] The traditional automatic measurement system for the comprehensive environment of a pigsty may rely more on manual inspections, which are inefficient and prone to missed inspections. It lacks efficient data collection and analysis tools and cannot provide detailed environmental and pig behavior data. Additionally, traditional manual inspections or manually pushing inspection instruments for inspections may have a slow response speed to environmental changes and cannot adjust the breeding environment in a timely manner.

[0004] Manual inspections may result in incomplete data collection due to negligence or improper operation. The traditional technology lacks efficient data collection and analysis tools and cannot provide detailed environmental and pig behavior data. Manual inspections or manually pushing inspection instruments have a slow response speed to environmental changes and cannot adjust the breeding environment in real time. Traditional inspections may take some time to discover environmental problems and cannot make immediate adjustments. Manual inspections are greatly affected by subjective factors and may have inaccurate or deviated data. Frequent manual inspections increase the labor intensity of staff. In harsh environments, manual inspections may pose safety risks. Summary of the Utility Model

[0005] The present invention aims to solve the technical problems in the above-mentioned prior art, such as highly relying on manual environmental monitoring, resulting in low efficiency and inability to achieve continuous and real-time monitoring.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] An automatic measurement device for the comprehensive environment of a pigsty, comprising a suspension rail and a breeding inspection machine. The suspension rail is hoisted on the top wall of the pigsty; the breeding inspection machine includes a transport machine traveling on the suspension rail and an inspection box installed below the transport machine through a connecting frame;

[0008] The transport machine includes an installation box and a driving motor A installed in the installation box and driving the traveling wheels in the installation box to travel on the suspension rail;

[0009] An inspection camera, a programmable logic controller, an image analysis module, a sound recognition module, an environment perception module, a communication module, and a power supply module are installed on the inspection box; the environment perception module includes a temperature and humidity sensor, an ammonia sensor, and a carbon dioxide sensor;

[0010] The image analysis module, the inspection camera, the sound recognition module, the environmental perception module, the communication module, the sound recognition module, the environmental perception module, the communication module, and the drive motor A are electrically connected to the programmable logic controller respectively.

[0011] The drive motor A is installed in the installation box. It is responsible for driving the driving wheels to move on the hanging rail, enabling the breeding inspection machine to move freely in the pigsty. The environmental perception module on the inspection box includes a temperature and humidity sensor, an ammonia sensor, and a carbon dioxide sensor. These sensors can real-time monitor environmental parameters such as the temperature, humidity, ammonia concentration, and carbon dioxide concentration in the pigsty. The inspection camera is responsible for collecting image information in the pigsty. The image analysis module can process and analyze the images, such as the behavior and growth status of pigs. The sound recognition module can recognize the sounds of pigs to understand their health status and needs. The programmable logic controller (PLC) is responsible for integrating the data collected by all modules, processing it, and sending the data to the breeding management system or the terminal device of the breeding personnel through the communication module. According to the collected data and the set thresholds, the PLC can automatically control the ventilation, lighting, humidification, or dehumidification of the pigsty to maintain the optimization of the environment.

[0012] Preferably, the power supply module is electrically connected to the inspection camera, the programmable logic controller, the image analysis module, the sound recognition module, the environmental perception module, the communication module, and the drive motor A to provide a stable power supply.

[0013] Preferably, when the transporter moves in the pigsty, it collects the environmental data in the pigsty through the temperature and humidity sensor, the ammonia sensor, and the carbon dioxide sensor, and sends the environmental data to the programmable logic controller for processing. It takes pictures of the pigs through the inspection camera, and analyzes the behavior, counts the number, or identifies the individuals of the pigs through the image analysis module and sends them to the programmable logic controller; it recognizes the sounds of the pigs through the sound recognition module and sends them to the programmable logic controller, and judges their health status by analyzing the calls of the pigs;

[0014] The communication module adopts a wireless network module and is used to transmit the collected data and monitoring images to the management system in real time;

[0015] The programmable logic controller issues a control instruction to the drive motor A, driving the driving wheels to rotate so that the transporter can move autonomously on the hanging rail.

[0016] Preferably, the transporter further includes two U-shaped mounting seats installed on the bottom wall of the installation box, a motor bracket fixed on the bottom wall of one of the U-shaped mounting seats and used for installing the drive motor A, two gear A, two gear B, and two gear C arranged symmetrically and successively from top to bottom on both sides of the U-shaped mounting seats, and a shaft rod connecting the two gear B;

[0017] Gear B meshes with Gear A and Gear C respectively. The driving motor A drives the axle of one of the Gear C to rotate. There is a Gear D on the output shaft of the driving motor A, and Gear D meshes with Gear E on the shaft rod.

[0018] There are four driving wheels. Two Gears F are provided on both sides of the other U-shaped mounting base. The four are respectively fixed on the axles of two Gear A and two Gears F.

[0019] Preferably, auxiliary wheels are provided on both sides of the inner ends of the two U-shaped mounting bases, and the auxiliary wheels are limited on both sides of the hanging rail.

[0020] The driving motor A drives the shaft rod to rotate by meshing Gear D with Gear E on the shaft rod. The shaft rod is connected to two Gear B. Through the meshing of Gear B with Gear A and Gear C, the rotation of Gear A and Gear C is realized. The rotation of Gear A and Gear C transmits power through the axle, so that the driving wheels fixed on the axle rotate, and the transport machine is pushed to move on the hanging rail. The auxiliary wheels are arranged on both sides of the inner ends of the two U-shaped mounting bases to limit on both sides of the hanging rail to maintain the stability of the transport machine.

[0021] Preferably, protective plates with through holes A are fixed on both sides of the U-shaped mounting base by screws.

[0022] Preferably, the installation box includes a box body with an isosceles trapezoid structure and panels butt-jointed to both sides of the box body by bolts. The panels are provided with breathable grille plates corresponding to the through holes A.

[0023] Compared with the prior art, the technical effects and advantages of the present utility model are:

[0024] The comprehensive environmental automatic measurement device for pig houses monitors the environmental parameters of pig houses in real time through sensors, such as temperature, humidity, ammonia and carbon dioxide concentrations, and automatically adjusts according to needs to maintain the best breeding environment. Using PLC and advanced image analysis and sound recognition technologies, it realizes the automated and intelligent management of the breeding process. The collected environmental and pig behavior data can be used for in-depth analysis and optimization of breeding strategies. The wireless network communication module enables breeders to remotely monitor the conditions of pig houses, improving management efficiency; the efficient gear transmission system and optimized environmental control reduce energy consumption, and the automated inspection and analysis reduce the manual workload and improve breeding efficiency.

[0025] By optimizing the breeding environment, it promotes the healthy growth of pigs, reduces the occurrence of diseases, and improves the breeding quality. The automated system reduces the dependence on manual inspections and management, lowers labor costs. The large amount of data collected provides a scientific basis for breeding decisions, helping breeders formulate more effective feeding strategies. The stable transport conveyor and optimized control system reduce accident risks and improve the safety level of the farm. The modular design makes the maintenance and upgrade of the system more convenient and fast. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of the present utility model;

[0027] Figure 2 It is a front view of the present utility model;

[0028] Figure 3 It is a schematic structural diagram of the transport conveyor of the present utility model;

[0029] Figure 4 It is an exploded view of the transport conveyor of the present utility model;

[0030] Figure 5 It is a schematic structural diagram of the U-shaped mounting base of the present utility model;

[0031] Figure 6 It is a connection relationship diagram of each module inside the inspection box of the present utility model.

[0032] In the figures: 1, suspension rail; 2, breeding inspection machine; 3, transport conveyor; 301, installation box; 302, running wheel; 303, drive motor A; 304, U-shaped mounting base; 305, motor bracket; 306, gear A; 307, gear B; 308, gear C; 309, shaft rod; 310, gear D; 311, gear E; 312, gear F; 313, auxiliary wheel; 314, through hole A; 315, protective plate; 316, box body; 317, panel; 318, breathable grille plate; 4, connecting frame; 5, inspection box; 51, inspection camera; 52, programmable logic controller; 53, image analysis module; 54, sound recognition module; 55, environment perception module; 56, communication module; 57, power supply module; 58, temperature and humidity sensor; 59, ammonia sensor; 510, carbon dioxide sensor. Detailed Implementation Manner

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0034] The following further describes the present application in detail with reference to the accompanying Figures 1-6 drawings,

[0035] An embodiment of the present application discloses an automatic measurement device for the comprehensive environment of a pigsty, including a suspension rail 1 hoisted on the top wall of the pigsty and a breeding inspection machine 2. The breeding inspection machine 2 includes a transport machine 3 traveling on the suspension rail 1 and an inspection box 5 installed below the transport machine 3 through a connecting frame 4;

[0036] The transport machine 3 includes an installation box 301 and a driving motor A303 installed in the installation box 301 and driving a traveling wheel 302 in the installation box 301 to travel on the suspension rail 1;

[0037] The transport machine 3 further includes two U-shaped mounting seats 304 installed on the bottom wall of the installation box 301, a motor bracket 305 fixed on the bottom wall of one of the U-shaped mounting seats 304 and used for installing the driving motor A303, two gears A306, two gears B307 and two gears C308 rotatably arranged on both sides of the U-shaped mounting seat 304 and arranged symmetrically from top to bottom, and a shaft rod 309 connecting the two gears B307;

[0038] The gear B307 meshes with the gear A306 and the gear C308 respectively. The driving motor A303 drives the axle of one of the gears C308 to rotate. A gear D310 is provided on the output shaft of the driving motor A303, and the gear D310 meshes with a gear E311 on the shaft rod 309;

[0039] There are four traveling wheels 302, and two gears F312 are provided on both sides of the other U-shaped mounting seat 304. The four are respectively fixed on the axles of the two gears A306 and the two gears F312.

[0040] Preferably, auxiliary wheels 313 are provided on both sides of the inner ends of the two U-shaped mounting seats 304, and the auxiliary wheels 313 are limited on both sides of the suspension rail 1.

[0041] The driving motor A303 meshes with the gear E311 on the shaft rod 309 through the gear D310, thereby driving the shaft rod 309 to rotate. The shaft rod 309 connects the two gears B307, and through the meshing of the gear B307 with the gear A306 and the gear C308, the rotation of the gear A306 and the gear C308 is realized. The rotation of the gear A306 and the gear C308 transmits power through the axle, so that the traveling wheels 302 fixed on the axle rotate, and the transport machine 3 is pushed to move on the suspension rail 1. The auxiliary wheels 313 are arranged on both sides of the inner ends of the two U-shaped mounting seats 304 for limiting on both sides of the suspension rail 1 to maintain the stability of the transport machine 3.

[0042] Through the gear transmission system, the transporter 3 runs more smoothly on the suspension rail 1, reducing shaking and vibration, improving the stability of the transporter 3, and thus ensuring safety. The gear transmission has a relatively high efficiency, which can effectively reduce energy loss and lower the energy consumption of the drive motor A303. Through the cooperation of multiple gears and axles, the driving force distribution of the transporter 3 on the suspension rail 1 can be made more uniform, avoiding local overload. The design of the gears and axles is easy to inspect and maintain, and it is also more convenient to replace components. The running wheels 302 are not directly connected to the drive motor, but are driven through gears and axles, which can reduce the direct wear on the running wheels 302 and extend their service life. The setting of the auxiliary wheels 313 enables the transporter 3 to better adapt to the curvature change of the suspension rail 1 when running on the suspension rail 1, improving the adaptability and reliability of the transporter 3. Due to the improved stability of the transporter 3, the damage to the suspension rail 1 caused by the shaking of the transporter 3 is reduced.

[0043] On both sides of the U-shaped mounting base 304, a protective plate 315 with a through-hole A314 is fixed by screws. The installation box 301 includes a box body 316 with an isosceles trapezoidal structure and panels 317 butt-jointed to both sides of the box body 316 by bolts. The panels 317 are provided with ventilation grille plates 318 corresponding to the through-holes A314. The design of the through-holes A314 allows air to circulate, helping the internal electronic components dissipate heat and preventing the equipment from overheating. The design of the ventilation grille plates 318 can provide sufficient air circulation to avoid the formation of high temperature or high humidity inside.

[0044] An inspection camera 51, a programmable logic controller 52, an image analysis module 53, a sound recognition module 54, an environmental perception module 55, a communication module 56, and a power module 57 are installed on the inspection box 5; the environmental perception module 55 includes a temperature and humidity sensor 58, an ammonia sensor 59, and a carbon dioxide sensor 510;

[0045] The image analysis module 53, the inspection camera 51, the sound recognition module 54, the environmental perception module 55, the communication module 56, the sound recognition module 54, the environmental perception module 55, the communication module 56, and the drive motor A303 are respectively electrically connected to the programmable logic controller 52.

[0046] The power module 57 is electrically connected to the inspection camera 51, the programmable logic controller 52, the image analysis module 53, the sound recognition module 54, the environmental perception module 55, the communication module 56, and the drive motor A303 to provide a stable power supply. A stable power supply is the key guarantee for the effective operation of the comprehensive environment automatic measurement device in the pigsty, which is crucial for improving the breeding efficiency and ensuring the breeding safety.

[0047] When the transport aircraft 3 moves inside the pigsty, it collects the environmental data inside the pigsty through the temperature and humidity sensor 58, ammonia sensor 59, and carbon dioxide sensor 510, and sends the environmental data to the programmable logic controller 52 for processing. It takes pictures of the pigs through the inspection camera 51, and analyzes the behaviors of the pigs, counts the number, or identifies individuals through the image analysis module 53 and sends them to the programmable logic controller 52. It identifies the sounds of the pigs through the sound recognition module 54 and sends them to the programmable logic controller 52, and judges their health status by analyzing the calls of the pigs.

[0048] The communication module 56 uses a wireless network module and is used to transmit the collected data and monitoring images to the management system in real time.

[0049] The programmable logic controller 52 issues a control instruction to the drive motor A303, driving the driving wheel 302 to rotate so that the transport aircraft 3 autonomously travels on the suspension rail 1.

[0050] By collecting environmental data in real time through the temperature and humidity sensor 58, ammonia sensor 59, and carbon dioxide sensor 510, and collecting the image and sound information of the pigs through the inspection camera 51 and the sound recognition module 54, the environment inside the pigsty and the status of the pigs can be monitored in real time, and rapid analysis can be carried out to quickly respond to any abnormal situations. The programmable logic controller 52 automatically issues control instructions according to the collected data to adjust the temperature, humidity, ventilation, etc. of the pigsty to maintain the most suitable breeding environment. Automating the inspection and analysis of pig behaviors, numbers, individual identification, etc. can greatly reduce the workload of manual inspections and improve the efficiency of feeding management. By analyzing the calls of the pigs through the sound recognition module 54, the health problems of the pigs can be detected in time, realizing early warning and intervention. The autonomous travel of the transport aircraft 3 and the automated data collection reduce the need for manual intervention, thus saving labor costs. The large amount of collected data can provide support for breeding decisions, such as adjusting feeding strategies and optimizing feed rationing.

[0051] By monitoring and adjusting the pigsty environment in real time, more suitable growth conditions can be provided, improving the growth rate and health status of the pigs, thereby improving the breeding quality. The communication module 56 uses a wireless network and can transmit the data and monitoring images to the management system in real time. Breeders can monitor the status of the pigsty through the management system at any location. Automated monitoring and adjustment can reduce the accident risk caused by improper human operation and improve the safe production level of the farm. Generally speaking, the application of this comprehensive environmental automatic measurement device can improve the intelligent level of the farm, optimize the breeding process, reduce costs, and increase efficiency.

[0052] For the comprehensive environmental automatic measurement device of the pigsty, the driving motor A303 is installed in the installation box 301, which is responsible for driving the traveling wheels 302 to move on the hanging rail 1, enabling the breeding inspection machine 2 to travel freely in the pigsty. The environmental perception module 55 on the inspection box 5 includes a temperature and humidity sensor 58, an ammonia sensor 59, and a carbon dioxide sensor 510. These sensors can monitor environmental parameters such as the temperature, humidity, ammonia concentration, and carbon dioxide concentration in the pigsty in real time. The inspection camera 51 is responsible for collecting image information in the pigsty, and the image analysis module 53 can process and analyze the images, such as the behavior and growth status of pigs. The sound recognition module 54 can recognize the sounds of pigs to understand their health status and needs. The programmable logic controller 52 (PLC) is responsible for integrating the data collected by all modules, processing it, and sending the data to the breeding management system or the terminal device of the breeding personnel through the communication module 56. According to the collected data and the set thresholds, the PLC can automatically control the ventilation, lighting, humidification, or dehumidification of the pigsty to maintain the optimization of the environment.

[0053] Real-time monitoring and analysis of the pigsty environment help to adjust the breeding environment in a timely manner, promote the healthy growth of pigs, reduce the occurrence of diseases, and thus improve the breeding efficiency. Automated inspections reduce the frequency and intensity of manual monitoring and save labor costs. The collected data can help breeders better understand the behavior and needs of pigs and provide a basis for scientific decision-making. The automatic control system can adjust environmental parameters according to the monitoring results to keep the environment in the pigsty comfortable, which is beneficial to the growth of pigs. All data and operation records can be stored electronically, which is convenient for traceability and management, helps to improve the transparency and traceability of breeding management. Through real-time monitoring and automatic adjustment, the emissions of ammonia and carbon dioxide in the pigsty can be reduced, and the impact on the surrounding environment can be mitigated.

[0054] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic measurement device for the comprehensive environment of a pigsty, characterized in that Including: A suspension rail (1), which is hoisted on the top wall of the pigsty; A breeding inspection machine (2), which includes a transport machine (3) traveling on the suspension rail (1) and an inspection box (5) installed under the transport machine (3) through a connecting frame (4); The transport machine (3) includes an installation box (301), and a driving motor A (303) installed in the installation box (301) and driving a traveling wheel (302) in the installation box (301) to travel on the suspension rail (1); An inspection camera (51), a programmable logic controller (52), an image analysis module (53), a sound recognition module (54), an environment perception module (55), a communication module (56) and a power supply module (57) are installed on the inspection box (5); the environment perception module (55) includes a temperature and humidity sensor (58), an ammonia sensor (59), and a carbon dioxide sensor (510); The image analysis module (53), the inspection camera (51), the sound recognition module (54), the environment perception module (55), the communication module (56) and the driving motor A (303) are respectively electrically connected to the programmable logic controller (52).

2. The automatic measurement device for the comprehensive environment of a pigsty according to claim 1, wherein: The power supply module (57) is electrically connected to the inspection camera (51), the programmable logic controller (52), the image analysis module (53), the sound recognition module (54), the environment perception module (55), the communication module (56) and the driving motor A (303) to provide a stable power supply.

3. The automatic measuring device for the comprehensive environment of a pigsty according to claim 1, characterized in that: When the transport machine (3) moves in the pigsty, environmental data in the pigsty is collected through the temperature and humidity sensor (58), the ammonia sensor (59), and the carbon dioxide sensor (510), and the environmental data is sent to the programmable logic controller (52) for processing. Photos of pigs are taken through the inspection camera (51), and the behaviors of the pigs are analyzed, the quantity is counted or individuals are identified through the image analysis module (53) and sent to the programmable logic controller (52); the sounds of the pigs are identified through the sound recognition module (54) and sent to the programmable logic controller (52), and the health status of the pigs is judged by analyzing their calls; The communication module (56) adopts a wireless network module and is used to transmit the collected data and monitoring images to the management system in real time; The programmable logic controller (52) issues a control instruction to the driving motor A (303), driving the traveling wheel (302) to rotate so that the transport machine (3) autonomously travels on the suspension rail (1).

4. An automatic comprehensive environment measuring device for pig houses according to claim 1, characterized in that: The transport machine (3) further includes two U-shaped mounting seats (304) installed on the bottom wall of the installation box (301), a motor bracket (305) fixed on the bottom wall of one of the U-shaped mounting seats (304) and used for installing the driving motor A (303), two gear A (306), two gear B (307) and two gear C (308) arranged symmetrically on both sides of the U-shaped mounting seat (304) from top to bottom in sequence, and a shaft rod (309) connecting the two gear B (307); Gear B (307) meshes with gear A (306) and gear C (308) respectively. The driving motor A (303) drives the rotation of the axle of one of the gears C (308). A gear D (310) is provided on the output shaft of the driving motor A (303), and the gear D (310) meshes with a gear E (311) on the shaft rod (309). There are four driving wheels (302). Two gears F (312) are provided on both sides of the other U-shaped mounting seat (304). The four driving wheels are respectively fixed on the axles of the two gears A (306) and the two gears F (312).

5. An automatic comprehensive environment measuring device for pig houses according to claim 4, characterized in that: Auxiliary wheels (313) are respectively provided on both sides of the inner ends of the two U-shaped mounting seats (304). The auxiliary wheels (313) are limited on both sides of the suspension rail (1).

6. The automatic measurement device for the comprehensive environment of a pigsty according to claim 5, characterized in that: On both sides of the U-shaped mounting seat (304), a protective plate (315) with a through-hole A (314) is fixed by screws.

7. The automatic measurement device for the comprehensive environment of a pigsty according to claim 5, characterized in that: The installation box (301) includes a box body (316) with an isosceles trapezoid structure and panels (317) butt-jointed to both sides of the box body (316) by bolts. A breathable grille plate (318) corresponding to the through-hole A (314) is provided on the panel (317).

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