Environment controller for improving biological safety of farm

Abstract

The utility model relates to the technical field of cultivation environment control, and discloses an environment controller for improving biological safety of a farm, which comprises a pressure difference regulation and control module, a temperature regulation and control module, a positive pressure fan, a negative pressure fan, a pressure difference detector and a plurality of indoor temperature detectors. The feeding area is provided with a ventilation air duct, the pressure difference detector is arranged in the ventilation air duct, and the negative-pressure fan is arranged corresponding to the positive-pressure fan along the wind; the feeding area is rectangular, and the multiple indoor temperature detectors are arranged at the top of the feeding area and are arranged at intervals along one diagonal line of the top of the rectangular feeding area; when the pressure difference regulation and control module determines that the air pressure difference value is smaller than the set pressure difference value, the compensation opening degree of the corresponding positive pressure fan is adjusted; and when the temperature regulation and control module determines that the average value of the multiple temperature values is larger than the set average value, the exhaust opening degree of the corresponding negative pressure fan is adjusted. The ventilation requirement in winter and the temperature adjusting requirement in summer can be met, the biological safety coefficient is improved, and fine management of all feeding areas in a farm is achieved.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture environmental control technology, and in particular to an environmental controller that improves the biosafety of aquaculture farms. Background Technology

[0002] In northern regions where there is a lot of dust in winter, farms will take certain wind protection measures. However, pathogens spread by large dust particles can enter the farm with the dust, which can easily cause diseases in farm animals living in poorly ventilated areas.

[0003] In the existing technology, the mode of the existing environmental control ventilation system is too simple and insufficient to meet the ventilation and air exchange needs in winter and the temperature regulation needs in summer. This affects the biosecurity of the farm. In addition, the detection and control equipment are all installed in a centralized manner, making it difficult to achieve refined management and making it difficult to meet the needs of flexible adjustment according to different environmental conditions. Utility Model Content

[0004] The purpose of this invention is to provide an environmental controller that enhances biosecurity in aquaculture farms, thereby solving one or more technical problems existing in the prior art and at least providing a beneficial option or creating conditions.

[0005] To achieve the above objectives, some embodiments of this application provide an environmental controller for improving biosecurity in a livestock farm, wherein the livestock farm is divided into multiple breeding areas, including: a differential pressure control module, a temperature control module, a positive pressure fan, a negative pressure fan, a differential pressure detector, and multiple indoor temperature detectors;

[0006] The breeding area is equipped with a ventilation duct, and the differential pressure detector is installed in the ventilation duct. The differential pressure detector is used to detect the wind pressure differential value corresponding to the breeding area. The positive pressure fan and the negative pressure fan are arranged opposite to each other about the breeding area, and the negative pressure fan is arranged in the same direction as the positive pressure fan.

[0007] The breeding area is rectangular, and multiple indoor temperature detectors are arranged at the top of the breeding area and spaced along one of the diagonals of the top of the rectangular breeding area. The indoor temperature detectors are used to detect the temperature value of the corresponding breeding area.

[0008] The differential pressure control module is connected to the positive pressure fan, the negative pressure fan and the differential pressure detector respectively. The differential pressure control module is used to adjust the compensation opening of the corresponding positive pressure fan when it is determined that the wind pressure differential value is less than the set differential pressure value.

[0009] The temperature regulation module is connected with the positive pressure fan, the negative pressure fan and the indoor temperature detectors, and is configured to adjust the exhaust opening degree of the negative pressure fan when the average of the temperature values is greater than a set average.

[0010] Further, the environmental controller for improving bio-safety of a farm further comprises a warning module.

[0011] The warning module is connected with the temperature regulation module and the pressure difference regulation module, and is configured to send a warning signal when the air pressure difference is less than a set pressure difference and when the average of the temperature values is greater than a set average.

[0012] Further, the environmental controller for improving bio-safety of a farm further comprises a spraying regulation module and a plurality of humidity detectors.

[0013] The humidity detectors are arranged along one diagonal line of the top of the rectangular feeding area, and are configured to detect the humidity values corresponding to the feeding area.

[0014] The spraying regulation module is connected with the humidity detectors and the indoor temperature detectors, and is connected with an external spraying device, and is configured to regulate the external spraying device.

[0015] Further, the environmental controller for improving bio-safety of a farm further comprises a water curtain regulation module.

[0016] The water curtain regulation module is connected with the humidity detectors and the indoor temperature detectors, and is connected with an external water curtain device, and is configured to regulate the external water curtain device.

[0017] Further, the environmental controller for improving bio-safety of a farm further comprises an ammonia detector and an ammonia regulation module.

[0018] The ammonia detector is arranged in the feeding area, and is configured to detect the ammonia concentration values corresponding to the feeding area.

[0019] The ammonia regulation module is connected with the ammonia detector and the warning module, and is configured to send a driving signal to the warning module to send the warning signal when the ammonia concentration is greater than a set ammonia concentration threshold.

[0020] Further, the environmental controller for improving bio-safety of a farm further comprises a carbon dioxide detector and a carbon dioxide regulation module.

[0021] The carbon dioxide detector is arranged in the feeding area, and is used for detecting a carbon dioxide concentration in the feeding area.

[0022] The carbon dioxide regulating module is connected with the carbon dioxide detector and the warning module respectively, and is used for sending a driving signal to the warning module to send the warning signal when it is determined that the carbon dioxide concentration is greater than a set carbon dioxide concentration threshold.

[0023] Further, the environmental controller for improving biological safety of a farm further comprises an outdoor temperature detector.

[0024] The outdoor temperature detector is arranged on an outer wall of the farm, and is connected with the temperature regulating module, and is used for detecting an outdoor temperature value.

[0025] Further, at most two negative pressure fans are arranged in the feeding area.

[0026] Further, the positive pressure fan is a variable-frequency three-phase fan.

[0027] Further, the negative pressure fan is a variable-frequency fan or a fixed-frequency fan.

[0028] The beneficial effects of the present application are as follows: the farm is divided into multiple feeding areas, different breeding objects can be divided and managed, multiple indoor temperature detectors are arranged along one diagonal line of the top of the rectangular feeding area at intervals to reflect the average temperature of the real feeding area, a positive pressure fan and a negative pressure fan are arranged in each feeding area, the negative pressure fan is located at the downwind of the positive pressure fan, and the compensation opening of the positive pressure fan is adjusted through the pressure difference to maintain the positive pressure ventilation of each feeding area in the farm, air circulation in each feeding area is realized, and the biological safety coefficient is improved; through the temperature regulating module, the negative pressure fan is started to assist ventilation when the temperature is high in summer, the temperature balance of each feeding area in the farm is ensured, the ventilation and air exchange demand in winter and the temperature regulation demand in summer are met, the fine management of each feeding area in the farm is realized, different demands for air quality, temperature and ventilation are met, and the biological safety coefficient is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structure schematic view of an environmental controller for improving biological safety of a farm according to an embodiment of the present application;

[0030] Figure 2 is a feeding area division schematic view of an environmental controller for improving biological safety of a farm according to an embodiment of the present application;

[0031] Figure 3 is a feeding area division schematic diagram of the environmental controller for improving biological safety of a breeding farm according to another embodiment of the utility model;

[0032] Figure 4 is a connection schematic diagram of the positive pressure motor of the environmental controller for improving biological safety of a breeding farm according to an embodiment of the utility model.

[0033] The drawing mark: 100, feeding area, 110, ventilation air duct, 200, negative pressure fan, 300, positive pressure fan, 400, differential pressure detector, 500, indoor temperature detector, 600, outdoor temperature detector. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantage of the application more clear and intelligible, the application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and cannot be understood as limiting the utility model.

[0035] It should be noted that although the functional modules are divided in the schematic diagram, in some cases, the module division in the system can be different.

[0036] In addition, it can be understood that the terms "first", "second" and the like used in the application can be used in this paper to describe various concepts, but unless specifically stated, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. The terms "first", "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features. For example, without departing from the scope of the embodiments of the application, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "when" or "when" or "in response to determining".

[0037] In the description of the utility model, it should be noted that unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0038] As described in the background, in the prior art, the mode of the existing environmental control ventilation system is too single to cope with the ventilation and air exchange demand in winter and the temperature regulation demand in summer, and the detection equipment and the regulation equipment are centrally installed, which is difficult to realize fine management, so it is difficult to meet the demand of flexible adjustment according to different environmental conditions.

[0039] With reference to Figure 1 and Figure 2 In some embodiments of the present application, an environmental controller for improving the biological safety of a breeding farm includes a negative pressure fan 200, a positive pressure fan 300, a differential pressure detector 400, a differential pressure regulation module, a temperature regulation module, and a plurality of indoor temperature detectors 500.

[0040] The breeding farm is divided into a plurality of feeding areas 100, each feeding area 100 is provided with a ventilation air duct 110, and each feeding area 100 is rectangular. Through the plurality of feeding areas 100, different breeding objects can be fed, and by installing corresponding equipment in the divided areas, fine management of each feeding area 100 in the breeding farm can be realized.

[0041] The differential pressure detector 400 is installed in the ventilation air duct 110, the output end of the differential pressure detector 400 is connected with the input end of the differential pressure regulation module, and the differential pressure detector 400 can detect the wind pressure differential value in the corresponding feeding area 100 and send the wind pressure differential value to the differential pressure regulation module.

[0042] In an embodiment, the differential pressure detector 400 can also be installed in the external wind box of the negative pressure fan 200 to detect the wind pressure differential value.

[0043] The plurality of indoor temperature detectors 500 are installed on the top of the feeding area 100, and are distributed along one of the diagonal lines of the top of the rectangular feeding area 100, the output ends of the plurality of indoor temperature detectors 500 are connected with the input end of the temperature regulation module, the indoor temperature detector 500 can detect the temperature value in the corresponding feeding area 100 and send the temperature value to the temperature regulation module, and the temperature regulation module can obtain a plurality of temperature values.

[0044] This embodiment is aimed at the area characteristics of the breeding farm, and the arrangement of the indoor temperature detector 500 ensures that the temperature detector covers each corner of the feeding area 100, thereby providing more uniform temperature distribution data, which helps to reduce the edge effect, and if one or more temperature detectors fail, other detectors can still provide temperature information of the entire area, thereby reducing the risk of data loss.

[0045] Each feeding area 100 is provided with a positive pressure fan 300 and a negative pressure fan 200, the positive pressure fan 300 and the negative pressure fan 200 are oppositely arranged with respect to the feeding area 100, and in the flow direction of the air flow, the negative pressure fan 200 is at the downwind downstream of the positive pressure fan 300. Among them, the positive pressure fan 300 and the negative pressure fan 200 can be symmetrically arranged with respect to the feeding area 100. The positive pressure fan 300 can introduce fresh air into the corresponding feeding area 100 to maintain the positive pressure of the corresponding feeding area 100. The negative pressure fan 200 can extract the air generated in the feeding area 100 to the outside of the farm to realize ventilation.

[0046] The output end of the pressure difference regulation module is connected with the positive pressure fan 300 and the negative pressure fan 200 in each feeding area 100, and the pressure difference regulation module can receive the air pressure difference value sent by the pressure difference detector 400. When the air pressure difference value is less than the set pressure difference value, the feeding area 100 is in a low pressure state, the operating frequency of the positive pressure fan 300 of the feeding area 100 is adjusted to adjust the compensation opening degree, so that the feeding area 100 maintains positive pressure ventilation, realizes the air flow in each feeding area 100, meets the ventilation and air exchange demand in winter, and improves the biological safety coefficient.

[0047] In an embodiment, the pressure difference regulation module can receive the air pressure difference value sent by the pressure difference detector 400. When the air pressure difference value is less than the set pressure difference value, the feeding area 100 is in a low pressure state, the operating frequency of the negative pressure fan 200 of the feeding area 100 is adjusted to adjust the compensation opening degree, so that the feeding area 100 maintains positive pressure ventilation, realizes the air flow in each feeding area 100, meets the ventilation and air exchange demand in winter, and improves the biological safety coefficient.

[0048] The output end of the temperature regulation module is connected with the positive pressure fan 300 and the negative pressure fan 200 in each feeding area 100, and the temperature regulation module can receive a plurality of temperature values and calculate the average temperature. When the average value is greater than the set average value, the operating frequency of the negative pressure fan 200 of the feeding area 100 is adjusted to adjust the exhaust opening degree, so that the negative pressure fan 200 is started to assist ventilation in summer, and the temperature balance of each feeding area 100 in the farm is ensured, and the temperature regulation demand in summer is met.

[0049] By the above-mentioned embodiment, the farm is divided into multiple feeding areas 100, different breeding objects can be divided and managed, multiple indoor temperature detectors 500 are arranged along one of the diagonal lines of the top of the rectangular feeding area 100 to reflect the average temperature of the actual feeding area 100, a positive pressure fan 300 and a negative pressure fan 200 are arranged in each feeding area 100, the negative pressure fan 200 is located at the downwind of the positive pressure fan 300, and the compensation opening of the positive pressure fan 300 is adjusted by the pressure difference to maintain the positive pressure ventilation of each feeding area 100 in the farm, the air circulation in each feeding area 100 is realized, and the biological safety coefficient is improved; through the temperature regulation module, the negative pressure fan 200 is started to assist ventilation in summer high temperature, the temperature heat dissipation balance of each feeding area 100 in the farm is ensured, the ventilation and air exchange demand in winter and the temperature regulation demand in summer can be met, the fine management of each feeding area 100 in the farm is realized, different demands for air quality, temperature and ventilation are met, and the biological safety coefficient is improved.

[0050] Reference Figures 1 to 3 In some embodiments of the present application, the environmental controller further comprises a spraying control module, a water curtain control module, and a plurality of humidity detectors.

[0051] The plurality of humidity detectors are all installed on the top of the feeding area 100, and are distributed at intervals along one of the diagonal lines of the top of the rectangular feeding area 100. The output ends of the plurality of humidity detectors are all connected to the input end of the spraying control module, and are also all connected to the input end of the water curtain control module. The humidity detector can detect the humidity value in the corresponding feeding area 100 and send the humidity value to the spraying control module and the water curtain control module.

[0052] Similarly, the present embodiment is directed to the area characteristics of the farm, and the arrangement of the humidity detectors ensures that the humidity detectors cover all corners of the feeding area 100, thereby providing more uniform humidity distribution data, which helps to reduce edge effects. If one or more humidity detectors fail, other detectors can still provide temperature information for the entire area, thereby reducing the risk of data loss.

[0053] The input end of the spraying control module is also connected to the plurality of indoor temperature detectors 500, and the output end of the spraying control module is connected to the external spraying device. The spraying control module can control the external spraying device.

[0054] In an embodiment, the spraying control module receives a plurality of temperature values and a plurality of humidity values. When the average of the plurality of temperature values is greater than or equal to a set start temperature, and the average of the plurality of humidity values is less than a set stop humidity, the spraying control module drives the external spraying device to operate according to a set working time and a set stop time period.

[0055] In another embodiment, the spray control module receives a plurality of temperature values and receives a plurality of humidity values, when the average of the plurality of temperature values is greater than or equal to the set start temperature and the set stop humidity is 0, the humidity condition is ignored, and the spray control module drives the external spray device to operate according to the set operation time and stop time period.

[0056] When the stop time period is 0, the external spray device is always on.

[0057] The input end of the water curtain control module is also connected with a plurality of indoor temperature detectors 500, and the output end of the water curtain control module is connected with an external water curtain device, so that the water curtain control module can control the external water curtain device.

[0058] In an embodiment, the water curtain control module receives a plurality of temperature values and receives a plurality of humidity values, when the temperature difference between the average of the plurality of temperature values and the target temperature is greater than the set start temperature difference, and the average of the plurality of humidity values is less than the set stop humidity, the water curtain control module drives the external water curtain device to operate within the set time range.

[0059] When the temperature difference between the average of the plurality of temperature values and the target temperature is not greater than the set start temperature difference, or the average of the plurality of humidity values is not less than the set stop humidity, the water curtain control module controls the external water curtain device to stop operating.

[0060] Referring to Figures 1 to 3 In some embodiments of the utility model, the environment controller further comprises: a warning module, a carbon dioxide detector, a carbon dioxide control module, an ammonia gas detector and an ammonia gas control module.

[0061] Each feeding area 100 is provided with a carbon dioxide detector and an ammonia gas detector. The carbon dioxide detector can detect the carbon dioxide concentration in the corresponding feeding area 100, and the ammonia gas detector can detect the ammonia gas concentration in the corresponding feeding area 100.

[0062] The input end of the carbon dioxide control module is connected with the carbon dioxide detector, and the output end of the carbon dioxide control module is connected with the warning module. The carbon dioxide control module can receive the carbon dioxide concentration output by the carbon dioxide detector. When it is determined that the carbon dioxide concentration is greater than the set carbon dioxide concentration threshold, the carbon dioxide control module outputs a driving signal to the warning module, so that the warning module issues a warning signal to prompt that the carbon dioxide concentration of the corresponding feeding area 100 is too high.

[0063] The input end of the ammonia gas regulation module is connected with the ammonia gas detector, the output end of the ammonia gas regulation module is connected with the warning module, the ammonia gas regulation module can receive the ammonia gas concentration output by the ammonia gas detector, when it is determined that the ammonia gas is greater than the set ammonia gas threshold value, the ammonia gas regulation module outputs a driving signal to the warning module, so that the warning module issues a warning signal to prompt that the ammonia gas of the corresponding breeding area 100 is too high.

[0064] The temperature regulation module and the pressure difference regulation module are both connected with the warning module, the warning module can issue a warning signal when the air pressure difference value is less than the set pressure difference value and when it is determined that the average of the plurality of temperature values is greater than the set average value.

[0065] In an embodiment, when the temperature regulation module determines that the average of the plurality of temperature values is greater than the set average value, the temperature regulation module outputs a driving signal to the warning module, so that the warning module issues a warning signal to prompt that the temperature of the corresponding breeding area 100 is too high.

[0066] In another embodiment, when the pressure difference regulation module determines that the air pressure difference value is less than the set pressure difference value, the pressure difference regulation module outputs a driving signal to the warning module, so that the warning module issues a warning signal to prompt that the pressure difference of the corresponding breeding area 100 is too low.

[0067] Referring to Figures 1 to 3 In some embodiments of the utility model, the environmental controller further comprises: an outdoor temperature detector 600.

[0068] The outdoor temperature detector 600 is installed on the outer wall of the farm, the outdoor temperature detector 600 is connected with the input end of the temperature regulation module, and the outdoor temperature detector 600 can detect an outdoor temperature value.

[0069] The outdoor temperature value can be used as a basis for temperature regulation, and the temperature regulation module can maintain the indoor and outdoor temperature difference according to the outdoor temperature value.

[0070] Referring to Figures 1 to 4 In some embodiments of the utility model, in a breeding area 100, at most two negative pressure fans 200 are arranged, and at least one positive pressure fan 300 is arranged. The positive pressure fan 300 is a variable frequency three-phase fan, and the negative pressure fan 200 can be a variable frequency fan or a fixed frequency fan.

[0071] In an embodiment, referring to Figure 2 In a breeding area 100, one positive pressure fan 300 and two negative pressure fans 200 can be arranged.

[0072] In an embodiment, referring to Figure 3 In a breeding area 100, one positive pressure fan 300 and one negative pressure fan 200 can be arranged.

[0073] Wherein, with reference to Figure 4 Since the ports of the regulation module are limited, for a positive pressure fan 300 in a feeding area 100, the signal lines of the frequency converters of the positive pressure fans 300 are connected with each other, and then one of the signal lines of the positive pressure fans 300 is connected with the regulation module. That is, the first port of the frequency converter of the current positive pressure fan 300 is connected with the first port of the frequency converter of the next positive pressure fan 300 and the first port of the frequency converter of the previous positive pressure fan 300, and is connected to the frequency converter of the last positive pressure fan 300. The second port of the frequency converter of the current positive pressure fan 300 is connected with the second port of the frequency converter of the next positive pressure fan 300 and the second port of the frequency converter of the previous positive pressure fan 300, and is connected to the frequency converter of the last positive pressure fan 300. Two ports of the frequency converter of one of the positive pressure fans 300 are connected to the regulation module.

[0074] And for a negative pressure fan 200 in a feeding area 100, at most two frequency converters of the negative pressure fans 200 are connected with the corresponding ports of the regulation module, and the second ports of the frequency converters of the negative pressure fans 200 are connected to the same port of the regulation module.

[0075] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. An environmental controller for enhancing biosecurity in a farm, characterized by, The farm is divided into multiple feeding areas, including: differential pressure regulation module, temperature regulation module, positive pressure fan, negative pressure fan, differential pressure detector and multiple indoor temperature detectors; The feeding area is provided with a ventilation air duct, and the differential pressure detector is arranged in the ventilation air duct. The differential pressure detector is used to detect the wind pressure differential value corresponding to the feeding area. The positive pressure fan and the negative pressure fan are oppositely arranged with respect to the feeding area. The negative pressure fan is arranged in the wind direction corresponding to the positive pressure fan; The feeding area is rectangular, and multiple indoor temperature detectors are arranged on the top of the feeding area and arranged along one of the diagonal lines of the top of the rectangular feeding area. The indoor temperature detector is used to detect the temperature value corresponding to the feeding area; The differential pressure regulation module is connected with the positive pressure fan, the negative pressure fan and the differential pressure detector respectively. The differential pressure regulation module is used to adjust the compensation opening degree corresponding to the positive pressure fan when it is determined that the wind pressure differential value is less than the set differential value. The temperature regulation module is connected with the positive pressure fan, the negative pressure fan and multiple indoor temperature detectors respectively. The temperature regulation module is used to adjust the exhaust opening degree corresponding to the negative pressure fan when it is determined that the average of multiple temperature values is greater than the set average.

2. An environmental controller for enhancing biosecurity in a farming operation according to claim 1, wherein, Further comprising: Warning module; The warning module is connected with the temperature regulation module and the differential pressure regulation module respectively. The warning module is used to issue a warning signal when the wind pressure differential value is less than the set differential value and when it is determined that the average of multiple temperature values is greater than the set average.

3. An environmental controller for enhancing biosecurity in a farming operation according to claim 1, wherein, Further comprising: Spray control module and multiple humidity detectors; Multiple humidity detectors are arranged on the top of the feeding area and arranged along one of the diagonal lines of the top of the rectangular feeding area. The humidity detector is used to detect the humidity value corresponding to the feeding area; The spray control module is connected with multiple humidity detectors and multiple indoor temperature detectors respectively. The spray control module is connected with an external spray device. The spray control module is used to control the external spray device.

4. An environmental controller for enhancing biosecurity in a farming operation according to claim 3, wherein, Further comprising: Water curtain control module; The water curtain control module is connected with multiple humidity detectors and multiple indoor temperature detectors respectively. The water curtain control module is connected with an external water curtain device. The water curtain control module is used to control the external water curtain device.

5. An environmental controller for enhancing biosecurity in a farming operation according to claim 2, wherein, Further comprising: Ammonia detector and ammonia control module; The ammonia detector is arranged in the feeding area. The ammonia detector is used to detect the ammonia concentration value corresponding to the feeding area; The ammonia control module is connected with the ammonia detector and the warning module respectively. The ammonia control module is used to issue a driving signal to the warning module to issue the warning signal when it is determined that the ammonia concentration is greater than the set ammonia concentration threshold.

6. An environmental controller for enhancing biosecurity in a farming operation according to claim 2, wherein, Further comprising: Carbon dioxide detector and carbon dioxide control module; The carbon dioxide detector is arranged in the feeding area. The carbon dioxide detector is used to detect the carbon dioxide concentration in the feeding area; The carbon dioxide regulation module is connected with the carbon dioxide detector and the warning module respectively, and is used for sending a driving signal to the warning module to send the warning signal when it is determined that the carbon dioxide concentration is greater than a set carbon dioxide concentration threshold.

7. An environmental controller for enhancing biosecurity in a farming operation according to claim 1, wherein, Also comprising: An outdoor temperature detector; The outdoor temperature detector is arranged on the outer wall of the farm, and is connected with the temperature regulation module. The outdoor temperature detector is used for detecting an outdoor temperature value.

8. An environmental controller for enhancing biosecurity in a farming operation according to claim 1, wherein, At most two negative pressure fans are arranged in the feeding area.

9. An environmental controller for enhancing biosecurity in a farming operation according to claim 1, wherein, The positive pressure fan is a variable frequency three-phase fan.

10. An environmental controller for enhancing biosecurity in a farming operation according to claim 1, wherein, The negative pressure fan is a variable frequency fan or a fixed frequency fan.

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