Aerosol negative pressure monitoring device for pathogenic microorganisms in livestock and poultry fields

Abstract

The invention discloses a negative pressure monitoring device for pathogenic microorganism aerosol in livestock and poultry fields, and belongs to the technical field of pathogenic microorganism aerosol monitoring. The shell is installed on the support, and an air inlet and an air outlet are formed in the shell; the air inlet unit is mounted on the shell, corresponds to the air inlet and is used for sucking ambient air, the collecting and filtering unit is mounted in the shell, and the air inlet end of the collecting and filtering unit is communicated with the air inlet unit and is used for intercepting aerosol particles carrying microorganisms in air; the negative pressure unit is installed in the shell, the air inlet is connected with the air outlet end of the collecting and filtering unit, and the air outlet is correspondingly connected with the air outlet. The environment monitoring unit is integrated on the shell and is used for monitoring environment parameters in real time; the control unit is electrically connected with the environment monitoring unit and the negative pressure unit. And the power supply unit supplies power to each power utilization unit. Through combination of negative pressure sampling and intelligent adaptive control, efficient capture, remote monitoring and long-acting stable operation of pathogenic microorganism aerosol in livestock and poultry fields are realized.

Description

Technical Field

[0001] This invention belongs to the field of pathogenic microorganism aerosol monitoring technology, specifically relating to a negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields. Background Technology

[0002] In intensive livestock and poultry farming, the transmission of pathogenic microorganisms via airborne aerosols is one of the main pathways for large-scale outbreaks and spread of animal diseases. Field environments are open and well-ventilated, resulting in typically low concentrations and uneven distribution of pathogenic microorganisms in aerosols, posing a significant challenge to effective sampling and monitoring.

[0003] Currently, most air sampling devices on the market suffer from limited sampling flow, poor environmental adaptability, and limited functionality. In livestock and poultry field environments with high dust concentrations and large temperature and humidity fluctuations, traditional samplers are prone to reduced sampling efficiency due to filter membrane clogging, and may even cause equipment overload and damage. In addition, existing equipment generally lacks remote monitoring and intelligent control capabilities, and cannot adjust sampling strategies in real time according to environmental changes, making it difficult to meet the actual needs of livestock and poultry farms for long-term, continuous, and automated monitoring of pathogenic aerosols.

[0004] Therefore, there is an urgent need in this field for a pathogenic microorganism aerosol monitoring device that can adapt to complex field environments, has a large-volume sampling capacity, and can achieve intelligent control and remote monitoring. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides a negative pressure monitoring device for aerosols of pathogenic microorganisms in livestock and poultry fields, which adopts the following technical solution: A negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields includes: support; A housing, which is mounted on the bracket, and has an air inlet and an air outlet; An air intake unit is mounted on the housing and is positioned corresponding to the air inlet for drawing in ambient air. A collection and filtration unit is installed inside the housing, and the air inlet of the collection and filtration unit is connected to the air inlet unit for intercepting aerosol particles carrying microorganisms in the air. A negative pressure unit is installed inside the housing. The air inlet of the negative pressure unit is connected to the air outlet of the collection and filtration unit, and the air outlet of the negative pressure unit is correspondingly connected to the air outlet. An environmental monitoring unit, integrated on the housing, is used for real-time monitoring of environmental parameters; The control unit is electrically connected to the environmental monitoring unit and the negative pressure unit, respectively. The power supply unit provides power to the negative pressure unit, the environmental monitoring unit, and the control unit.

[0006] Furthermore, the air inlet is located on the four side walls of the housing, and the air outlet is located at the bottom of the housing.

[0007] Furthermore, the air intake unit includes a protective grille, an air intake duct, a filter screen, and a protective plate; the protective grille is installed on the outer wall of the housing and is correspondingly arranged with the air inlet to prevent large particles of foreign matter from entering; the protective plate is installed on the inner wall of the housing and is correspondingly arranged with the air inlet; the filter screen is disposed between the protective grille and the protective plate and is connected to the housing; the protective plate is provided with an opening, the first end of the air intake duct is sealed to the opening, and the second end is connected to the collection and filtering unit.

[0008] Furthermore, the collection and filtration unit includes a collection box, a filter membrane holder, and a filter membrane; the filter membrane is installed at the second end of the air inlet duct and cooperates with the filter membrane holder to fix the filter membrane on the air inlet duct; the air inlet of the collection box is connected to the second end of the air inlet duct, and the air outlet is connected to the negative pressure unit through a connecting pipe.

[0009] Furthermore, the power unit includes a battery pack and a separator; the separator is installed at the bottom of the housing to divide the interior of the housing into two sub-spaces arranged vertically; the battery pack is disposed in the lower sub-space and connected to the housing.

[0010] Furthermore, the negative pressure unit includes a vacuum pump and a shock-absorbing pad; the vacuum pump is disposed in the upper subspace and is fixedly mounted on the partition plate by the shock-absorbing pad; the outlet of the vacuum pump is connected to an exhaust pipe, which passes through the partition plate and the bottom of the housing in sequence and extends to the outside of the housing; the vacuum pump is electrically connected to the control unit.

[0011] Furthermore, the environmental monitoring unit includes a particulate matter sensor, a temperature and humidity sensor, and a micro-pressure differential sensor; the temperature and humidity sensor is integrated on the housing and electrically connected to the control unit; the micro-pressure sensor is installed on the air intake duct and electrically connected to the control unit, and is used to monitor the pressure difference before and after the filter membrane; the particulate matter sensor is integrated in the collection box and is used to monitor the particulate matter concentration in the collection box.

[0012] Further, the control unit includes a controller, the controller comprising: An information acquisition module is connected to the temperature and humidity sensor to obtain temperature and humidity data from the sensor; the information acquisition module is connected to the micro-pressure sensor to obtain filter membrane pressure data from the micro-pressure sensor; the information acquisition module is connected to the particulate matter sensor to obtain particulate matter concentration data monitored by the particulate matter sensor. An information processing module is connected to the information acquisition module to output corresponding information; An execution module, connected to the vacuum pump and the information processing module, is used to send status commands from the information processing module to the vacuum pump, and to output a power adjustment control signal to dynamically adjust the power of the vacuum pump.

[0013] Furthermore, dynamic adjustment specifically refers to: When the particulate matter concentration is higher than the first preset threshold, the vacuum pump is controlled to reduce its power to reduce the sampling flow rate. When the particulate matter concentration is below the second preset threshold, the vacuum pump is controlled to increase its power to increase the collection flow rate.

[0014] Furthermore, it also includes an alarm module, which is electrically connected to the information processing module. The alarm module includes an audible and visual alarm and a remote alarm interface. When an abnormal parameter is detected, an alarm is triggered on-site via the audible and visual alarm, and alarm information is pushed to the user terminal via the remote communication unit.

[0015] The negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields provided by this invention has the following beneficial effects: (1) The collection efficiency is comprehensive and efficient. Air inlets are provided on all four side walls of the shell. Combined with the negative pressure adsorption effect of the negative pressure unit, aerosol particles in the field environment can be captured in all directions, avoiding monitoring blind spots caused by single-direction collection and improving the representativeness of the samples.

[0016] (2) The acquisition is intelligent and flexible. By linking the control unit with the particulate sensor, the power of the vacuum pump is dynamically adjusted to achieve adaptive adjustment of the acquisition flow rate. This not only prevents the filter membrane from clogging and affecting the continuity of monitoring when the concentration is high, but also ensures sufficient acquisition when the concentration is low, thus optimizing the efficiency of filter membrane use.

[0017] (3) The monitoring parameters are multidimensional and complete, integrating multiple types of sensors such as temperature and humidity, particulate matter concentration, and filter membrane pressure difference, and simultaneously acquiring environmental parameters and collection status data, providing comprehensive data support for the analysis of the transmission patterns of pathogenic microorganism aerosols and risk assessment.

[0018] (4) The early warning response is timely and reliable. The alarm module has both on-site sound and light alarm and remote push function. Once abnormal parameters are detected, staff can be quickly reminded to take control measures to reduce the risk of disease transmission and provide timely protection for breeding safety.

[0019] (5) The structure is stable and durable. The functional units are arranged in partitions and protected by double protection of protective grids and filters. This effectively prevents large particles of foreign matter from entering the device. At the same time, the shock-absorbing pad design reduces the impact of vacuum pump vibration, improving the stability and service life of the device in harsh field environments.

[0020] (6) Convenient and worry-free operation and maintenance. Each unit is modularly designed. The filter membrane can be quickly fixed and replaced by a clamp. The battery pack is arranged independently for easy maintenance. The overall structure is simple, reducing the difficulty and cost of maintenance during outdoor use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the negative pressure monitoring device for pathogenic microorganisms in livestock and poultry fields according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the negative pressure monitoring device for pathogenic microorganisms in livestock and poultry fields according to the present invention; The components include: 1. bracket; 2. protective grille; 3. housing; 4. audible and visual alarm; 5. filter screen; 6. protective plate; 7. controller; 8. battery pack; 9. data acquisition box; 10. air inlet duct; 11. vacuum pump; 12. environmental monitoring unit; and 13. air outlet pipe. Detailed Implementation

[0022] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below.

[0023] Example 1

[0024] Reference Figures 1 to 2 A negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields, comprising: Bracket 1; Housing 3 is mounted on bracket 1 and has an air inlet and an air outlet. An air intake unit is mounted on the housing 3 and is positioned corresponding to the air inlet to draw in ambient air. The collection and filtration unit is installed inside the housing 3, and the air inlet is connected to the air inlet unit. It is used to intercept aerosol particles carrying microorganisms in the air. The negative pressure unit is installed inside the housing 3. The air inlet is connected to the air outlet of the collection and filtration unit, and the air outlet is connected to the air outlet. Environmental monitoring unit 12, which is integrated on housing 3, is used for real-time monitoring of environmental parameters; The control unit is electrically connected to the environmental monitoring unit 12 and the negative pressure unit, respectively. The power supply unit supplies power to each power-consuming unit.

[0025] In this embodiment, the air inlets are located on the four side walls of the housing 3, and the air outlets are located at the bottom of the housing 3.

[0026] In this embodiment, the air intake unit includes a protective grille 2, an air intake duct 10, a filter screen 5, and a protective plate 6. The protective grille 2 is installed on the outer wall of the housing 3 and is correspondingly arranged with the air inlet to prevent large particles of foreign matter from entering. The protective plate 6 is installed on the inner wall of the housing 3 and is correspondingly arranged with the air inlet. The filter screen 5 is arranged between the protective grille 2 and the protective plate 6 and is connected to the housing 3. The protective plate 6 is provided with an opening, and the first end of the air intake duct 10 is sealed to the opening, and the second end is connected to the collection and filtering unit.

[0027] Through the above technical solution, the bracket 1 raises the shell 3 to prevent ground dust from interfering with monitoring, the four sides of the air intake expand the sampling coverage, and the bottom air outlet forms a smooth airflow, which significantly improves the representativeness and efficiency of sampling.

[0028] In this embodiment, the collection and filtration unit includes a collection box 9, a filter membrane holder, and a filter membrane; the filter membrane is installed at the second end of the air inlet duct 10 and cooperates with the filter membrane holder to fix the filter membrane on the air inlet duct 10; the air inlet of the collection box 9 is connected to the second end of the air inlet duct 10, and the air outlet is connected to the negative pressure unit through a connecting pipe.

[0029] In this embodiment, the power unit includes a battery pack 8 and a partition; the partition is mounted on the bottom of the housing 3 to divide the interior of the housing 3 into two sub-spaces arranged vertically; the battery pack 8 is disposed in the lower sub-space and connected to the housing 3.

[0030] In this embodiment, the negative pressure unit includes a vacuum pump 11 and a shock-absorbing pad; the vacuum pump 11 is disposed in the upper subspace and is fixedly mounted on the partition plate by the shock-absorbing pad; the outlet of the vacuum pump 11 is connected to an exhaust pipe 13, which passes through the partition plate and the bottom of the housing 3 in sequence and extends to the outside of the housing 3; the vacuum pump 11 is electrically connected to the control unit.

[0031] In this embodiment, the environmental monitoring unit 12 includes a particulate matter sensor, a temperature and humidity sensor, and a micro-pressure differential sensor; the temperature and humidity sensor is integrated on the housing 3 and electrically connected to the control unit; the micro-pressure sensor is installed on the air intake duct 10 and electrically connected to the control unit, and is used to monitor the pressure difference before and after the filter membrane; the particulate matter sensor is integrated in the collection box 9 and is used to monitor the particulate matter concentration in the collection box 9.

[0032] In this embodiment, the control unit includes a controller 7, and the controller 7 includes: The information acquisition module is connected to the temperature and humidity sensor to obtain the temperature and humidity signals from the sensor; the information acquisition module is connected to the micro-pressure sensor to obtain the filter membrane pressure signal from the micro-pressure sensor; the information acquisition module is connected to the particulate matter sensor to obtain the particulate matter concentration data monitored by the particulate matter sensor. The information processing module is connected to the information acquisition module to output corresponding information; The execution module is connected to the vacuum pump 11 and the information processing module. It is used to output a power adjustment control signal to the vacuum pump 11 according to the status instructions of the information processing module, so as to dynamically adjust the power of the vacuum pump 11.

[0033] In this embodiment, dynamic adjustment specifically refers to: When the particulate matter concentration is higher than the first preset threshold, the vacuum pump 11 is controlled to reduce the power to reduce the sampling flow rate. When the particulate matter concentration is below the second preset threshold, the vacuum pump 11 is controlled to increase its power to increase the collection flow rate.

[0034] Through the above technical solution, the vacuum pump 11 generates negative pressure inside the housing 3, and the ambient air is drawn in from the air inlets on all four sides of the housing 3 under the action of pressure difference. The air first passes through the protective grille 2 and filter screen 5 of the air intake unit to filter out foreign objects such as leaves, insects and large dust particles, protecting the precision components at the rear. The pre-treated air is gathered into the collection and filtration unit through the air intake duct. The pathogenic microorganism aerosol particles in the air are effectively intercepted by the filter membrane and enriched on the membrane surface, completing the sample collection. During this process, the environmental monitoring unit 12 works simultaneously: the particulate matter sensor monitors the particulate matter concentration in the collection box 9 in real time; the temperature and humidity sensor monitors the ambient temperature and humidity; and the micro-pressure differential sensor monitors the pressure difference before and after the filter membrane.

[0035] In this embodiment, an alarm module is also included. The alarm module is electrically connected to the information processing module. The alarm module includes an audible and visual alarm 4 and a remote alarm interface. When an abnormal parameter is detected, an alarm is triggered on-site through the audible and visual alarm 4, and alarm information is pushed to the user terminal through the remote communication unit.

[0036] The working method of a negative pressure monitoring device for pathogenic microorganisms in livestock and poultry fields is as follows: After the device is started, the negative pressure unit generates negative pressure to draw in ambient air, and the environmental monitoring unit simultaneously collects real-time data on particulate matter concentration, temperature, humidity, and filter membrane pressure difference. The control unit dynamically adjusts the vacuum pump power according to the particulate matter concentration: it automatically reduces the speed to prevent filter membrane clogging when the concentration is high and automatically increases the speed to improve sampling efficiency when the concentration is low, and performs flow rate compensation calibration in conjunction with temperature and humidity data. The device monitors the filter membrane pressure difference and equipment status in real time. When filter membrane clogging, insufficient power, or equipment failure occurs, it simultaneously triggers on-site audible and visual alarms and remote information push. All environmental parameters, equipment status, and geographical location information are uploaded to the monitoring platform in real time through the communication module, supporting remote monitoring and historical data review. The device's physical stability in field environments is ensured through a zoned layout and vibration reduction design, and the modular structure facilitates quick filter membrane replacement and maintenance, enabling long-term continuous automated monitoring.

[0037] The above are merely preferred embodiments of the present invention and do not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields, characterized in that, include: support; A housing, which is mounted on the bracket, and has an air inlet and an air outlet; An air intake unit is mounted on the housing and is positioned corresponding to the air inlet for drawing in ambient air. A collection and filtration unit is installed inside the housing, and the air inlet of the collection and filtration unit is connected to the air inlet unit for intercepting aerosol particles carrying microorganisms in the air. A negative pressure unit is installed inside the housing. The air inlet of the negative pressure unit is connected to the air outlet of the collection and filtration unit, and the air outlet of the negative pressure unit is correspondingly connected to the air outlet. An environmental monitoring unit, integrated on the housing, is used for real-time monitoring of environmental parameters; The control unit is electrically connected to the environmental monitoring unit and the negative pressure unit, respectively. The power supply unit provides power to the negative pressure unit, the environmental monitoring unit, and the control unit.

2. The negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields according to claim 1, characterized in that, The air inlets are located on the four side walls of the housing, and the air outlets are located at the bottom of the housing.

3. The negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields according to claim 2, characterized in that, The air intake unit includes a protective grille, an air intake duct, a filter screen, and a protective plate. The protective grille is installed on the outer wall of the housing and is correspondingly arranged with the air inlet to prevent large particles from entering. The protective plate is installed on the inner wall of the housing and is correspondingly arranged with the air inlet. The filter screen is disposed between the protective grille and the protective plate and is connected to the housing. The protective plate has an opening, and the first end of the air intake duct is sealed to the opening, while the second end is connected to the collection and filtering unit.

4. The negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields according to claim 3, characterized in that, The collection and filtration unit includes a collection box, a filter membrane holder, and a filter membrane; the filter membrane is installed at the second end of the air inlet duct and cooperates with the filter membrane holder to fix the filter membrane on the air inlet duct; the air inlet of the collection box is connected to the second end of the air inlet duct, and the air outlet is connected to the negative pressure unit through a connecting pipe.

5. The negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields according to claim 4, characterized in that, The power unit includes a battery pack and a separator; the separator is installed at the bottom of the housing to divide the interior of the housing into two sub-spaces arranged vertically; the battery pack is located in the lower sub-space and is connected to the housing.

6. The negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields according to claim 5, characterized in that, The negative pressure unit includes a vacuum pump and a shock-absorbing pad; the vacuum pump is located in the upper subspace and is fixedly mounted on the partition plate by the shock-absorbing pad; the outlet of the vacuum pump is connected to an exhaust pipe, which passes through the partition plate and the bottom of the housing in sequence, and extends to the outside of the housing; the vacuum pump is electrically connected to the control unit.

7. The negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields according to claim 6, characterized in that, The environmental monitoring unit includes a particulate matter sensor, a temperature and humidity sensor, and a micro-pressure differential sensor; the temperature and humidity sensor is integrated on the housing and electrically connected to the control unit; the micro-pressure sensor is installed on the air intake duct and electrically connected to the control unit, and is used to monitor the pressure difference before and after the filter membrane; the particulate matter sensor is integrated in the collection box and is used to monitor the particulate matter concentration in the collection box.

8. The negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields according to claim 7, characterized in that, The control unit includes a controller, the controller comprising: An information acquisition module is connected to the temperature and humidity sensor to obtain temperature and humidity data from the sensor; the information acquisition module is connected to the micro-pressure sensor to obtain filter membrane pressure data from the micro-pressure sensor; the information acquisition module is connected to the particulate matter sensor to obtain particulate matter concentration data monitored by the particulate matter sensor. An information processing module is connected to the information acquisition module to output corresponding information; An execution module, connected to the vacuum pump and the information processing module, is used to output a power adjustment control signal to the vacuum pump according to the status instructions of the information processing module, so as to dynamically adjust the power of the vacuum pump.

9. The negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields according to claim 8, characterized in that, Dynamic adjustment specifically refers to: When the particulate matter concentration is higher than the first preset threshold, the vacuum pump is controlled to reduce its power to reduce the sampling flow rate. When the particulate matter concentration is below the second preset threshold, the vacuum pump is controlled to increase its power to increase the collection flow rate.

10. The negative pressure monitoring device for pathogenic microorganism aerosols in livestock and poultry fields according to claim 8, characterized in that, It also includes an alarm module, which is electrically connected to the information processing module. The alarm module includes an audible and visual alarm and a remote alarm interface. When an abnormal parameter is detected, the audible and visual alarm will sound an alarm on-site, and the alarm information will be pushed to the user terminal through the remote communication unit.

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