Plant-derived volatile organic compound monitoring, regulating and controlling system

Abstract

The utility model discloses a plant-derived volatile organic compound monitoring, regulating and controlling system, which belongs to the technical field of volatile organic compound monitoring and measuring and comprises a closed box body, a monitoring system, a climate factor regulating unit and a biological stress factor regulating unit, the monitoring system comprises an air inlet sampling module, a preprocessing module, a detection module and a data processing module, the air inlet sampling module performs VOCs sampling on a plant source, manual intervention is reduced, the sampling data error is small, and the credibility is high; the climate factor adjusting unit and the biological stress factor adjusting unit simulate various climate and biological stress factor change conditions of a plant source to be monitored, and in combination with the detection module, gas pollutant emission data curves of plants under different climate and biological stress conditions can be reflected in real time, accurately and highly precisely. The problem that it is difficult for a traditional monitoring method to achieve real-time and continuous monitoring of plant VOCs emission is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of volatile organic compound monitoring and measurement, in particular to a plant-derived volatile organic compound monitoring and control system. Background Art

[0002] VOCs is the abbreviation of volatile organic compounds, which are organic compounds that participate in atmospheric photochemical reactions. They are generally divided into two categories: anthropogenic and plant-derived. As precursors of PM2.5 and ozone, VOCs are increasingly being paid attention to by environmental management departments. With the implementation of pollution control measures such as the Blue Sky Defense Campaign and the Pollution Control Campaign issued by the country, the research and control of VOCs emitted from anthropogenic sources have achieved extremely remarkable results. At the same time, plant-derived VOCs have also begun to become a focus of ecological and environmental research. How to monitor plant-derived VOCs emissions more scientifically and precisely, and to obtain real-time emission patterns under multi-parameter changes in corresponding climate factors and biological stress factors has become an urgent need.

[0003] Existing technologies typically use climate chambers to simulate plant climate change conditions, and employ gas sampling to monitor changes in plant gaseous pollutant emissions. This results in delayed monitoring data and large data intervals, making it difficult to capture changes in plant gaseous pollutant emissions over shorter time periods and during minor changes in climate conditions. Furthermore, most current plant-derived VOCs monitoring technologies rely on manual sampling, which is labor-intensive and susceptible to human influence, resulting in large data errors and low reliability. Furthermore, traditional monitoring methods struggle to achieve real-time, continuous monitoring of plant VOCs emissions, and offer no immediate feedback on changes in plant gaseous pollutant emissions under changing climate conditions. Utility Model Content

[0004] In response to the above-mentioned deficiencies in the existing technology, the present invention provides a plant-derived volatile organic compound monitoring and control system, which solves the problems that most current plant-derived VOCs monitoring technologies rely on manual sampling, are labor-intensive, prone to operational errors, and have low data credibility.

[0005] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model is:

[0006] Provided is a plant-derived volatile organic compound monitoring and control system, which includes a closed box, a monitoring system, a climate factor adjustment unit, and a biological stress factor adjustment unit. A door is provided on one side of the closed box, and a plant source to be monitored is provided in the closed box.

[0007] The monitoring system includes an air intake sampling module, a pre-processing module, a detection module and a data processing module; the air intake sampling module includes at least one gas sample fluid tube with an air pump close to the plant source to be monitored;

[0008] The pre-processing module includes a filtering device and a dehumidifying device in communication with the gas sample fluid tube;

[0009] The detection module includes a VOCs sensor and a Fourier infrared gas analyzer, which are located behind the filter device and the dehumidification device and are connected to the gas sample fluid pipe;

[0010] The data processing module includes a power supply, a processor, and a communication unit electrically connected to each other; the VOCs sensor is electrically connected to the processor, and the communication unit is electrically connected to the monitoring platform;

[0011] The climate factor adjustment unit includes a temperature adjustment module, a humidity adjustment module and a light adjustment module arranged in a closed box;

[0012] The biological stress factor regulating unit inputs gases that affect the growth of the plant source to be monitored.

[0013] The basic principles of the plant-derived volatile organic compound monitoring and control system in this utility model are as follows: the plant source to be monitored is placed in a closed chamber by opening the chamber door, preventing external factors from affecting the monitoring of plant-derived volatile organic compounds; the air sampling module can select plants in different locations for VOC sampling, reducing manual intervention; the pretreatment module is used to pre-treat the sampled gas to remove impurities and moisture, thereby improving detection accuracy; the detection module uses a VOCs sensor and a Fourier infrared gas analyzer to collect VOC concentration information in the sampled gas in real time and transmit this information to the data processing module. The data processing module is responsible for receiving the VOC concentration information data, and the processor processes and analyzes the VOC concentration information data in real time. The data is uploaded to the monitoring platform through the communication unit to realize remote monitoring and data sharing. The climate factor adjustment unit and the biological stress factor adjustment unit simulate the various climate and biological stress factor changes of the plant source to be monitored, and can immediately, accurately and highly accurately reflect the gas pollutant emission data curve of the plant under different climate and biological stress conditions.

[0014] Furthermore, the data processing module also includes a storage unit electrically connected to the processor. The storage unit is used to store the VOC concentration information data to facilitate subsequent data export and provide support for in-depth analysis of the VOC concentration information data.

[0015] Furthermore, the system further includes an alarm unit electrically connected to the processor, the alarm unit being an audible and visual alarm. When the VOCs sensor concentration exceeds a preset threshold, the alarm unit is automatically triggered to alert the operator.

[0016] Furthermore, the filtering device is a particle filter.

[0017] Furthermore, the dehumidification device is an adsorption dryer.

[0018] Furthermore, the biological stress factor regulation unit inputs carbon dioxide and ozone to the plant source to be monitored, and accumulates and monitors the volatile organic compound concentration data to form an emission characteristic curve under different climate and stress factor conditions for specific plants.

[0019] Furthermore, one end of the gas sample fluid tube is located within the enclosed chamber, near the plant source to be monitored, while the other end is located outside the enclosed chamber and connected to an exhaust gas collection device. The exhaust gas collection device prevents the sampled gas in the gas sample fluid tube from entering the atmosphere and contaminating it.

[0020] The beneficial effects of the present invention are as follows: the present solution provides a plant-based volatile organic compound monitoring and control system, which samples VOCs from plant sources by setting an air intake sampling module, thereby reducing manual intervention, and the sampling data has small errors and high credibility; the climate factor adjustment unit and the biological stress factor adjustment unit simulate the various climate and biological stress factor change conditions of the plant source to be monitored, and combined with the detection module, can instantly, accurately and highly precisely reflect the gas pollutant emission data curves of plants under different climate and biological stress conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a functional block diagram of a plant-derived volatile organic compound monitoring and control system.

[0022] Among them, 1. Closed box; 2. Monitoring system; 21. Air intake sampling module; 211. Gas sample fluid tube; 212. Air pump; 22. Pretreatment module; 221. Filter device; 222. Dehumidification device; 23. Detection module; 231. VOCs sensor; 232. Fourier infrared gas analyzer; 24. Data processing module; 241. Power supply; 242. Processor; 243. Communication unit; 244. Storage unit; 3. Climate factor adjustment unit; 31. Temperature adjustment module; 32. Humidity adjustment module; 33. Light adjustment module; 4. Biological stress factor adjustment unit; 5. Alarm unit; 6. Waste gas collection device. DETAILED DESCRIPTION

[0023] The specific implementation methods of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific implementation methods. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all utility model creations using the concept of the present invention are protected.

[0024] like Figure 1 As shown, the present invention provides a monitoring and control system for plant-derived volatile organic compounds, which includes a closed box 1, a monitoring system 2, a climate factor adjustment unit 3, and a biotic stress factor adjustment unit 4. A door is provided on one side of the closed box 1, and the plant source to be monitored is disposed within the closed box 1. The door facilitates the placement and removal of the plant source to be monitored into and out of the closed box 1.

[0025] The monitoring system includes an intake air sampling module 21, a preprocessing module 22, a detection module 23, and a data processing module 24. The intake air sampling module 21 includes at least one gas sample fluid tube 211, located near the plant source to be monitored and equipped with an air pump 212. Activating the air pump 212 draws volatile organic compounds from the plant source to be monitored into the gas sample fluid tube 211.

[0026] The pre-processing module 22 includes a filter 221 and a dehumidifier 222, both connected to the gas sample fluid tube 211. Specifically, the filter 221 is a particle filter that pre-processes the sampled gas, removing particulate matter and impurities from the sampled gas to improve detection accuracy. The dehumidifier 222 is an adsorption dryer that utilizes the strong adsorption properties of an adsorbent to remove moisture from the sampled gas, thereby improving detection accuracy.

[0027] The detection module 23 includes a VOC sensor 231 and a Fourier infrared gas analyzer 232. The VOC sensor 231 and the Fourier infrared gas analyzer 232 are located behind the filter device 221 and the dehumidifier 222 and are connected to the gas sample fluid pipe 211. The data processing module 24 includes a power supply 241, a processor 242, and a communication unit 243, which are electrically connected to each other. The VOC sensor 231 is electrically connected to the processor 242, and the communication unit 243 is electrically connected to the monitoring platform.

[0028] The climate factor adjustment unit 3 includes a temperature adjustment module 31 , a humidity adjustment module 32 and a light adjustment module 33 which are arranged in the closed box 1 .

[0029] Specifically, the temperature regulation module 31 includes a heating system, a cooling system, a temperature sensor and a control system; the heating system is used to increase the temperature inside the closed box 1 when needed, and can be an electric heating element, a hot water circulation system or a solar collector panel, etc.; the cooling system is used to reduce the temperature inside the closed box 1 when the temperature is too high, and can be a water cooling system, an air conditioning refrigeration system, etc.; the temperature sensor is used to monitor the ambient temperature in real time and transmit the data to the control system. The control system automatically adjusts the operating status of the heating or cooling system according to the data feedback from the temperature sensor to keep the ambient temperature within the set range.

[0030] The humidity control module 32 includes a humidification system, a dehumidification system, a humidity sensor, and a control system. The humidification system increases the moisture content of the air through spraying, steam, and other methods when the ambient humidity is too low. The dehumidification system removes excess moisture through condensation, drying, and other methods when the ambient humidity is too high. The humidity sensor monitors the ambient humidity level in real time, providing data support for the control system. Based on the data fed back by the humidity sensor, the control system automatically adjusts the operating status of the humidification or dehumidification system to maintain the ambient humidity within the set range.

[0031] The light regulation module 33 includes a light source system, a light sensor and a control system; the light source system provides the light required by the plants and may include different types of lamps such as LED lamps, fluorescent lamps, halogen lamps, etc. These lamps can adjust parameters such as light intensity and spectral distribution as needed. The light sensor is used to monitor the light intensity and spectral composition in the environment and provide data support for the control system. The control system automatically adjusts the operating status of the light source system based on the data fed back by the light sensor, such as turning on / off the lamps, adjusting the light intensity, etc., to meet the light requirements for plant growth. The principles and specific structures of the temperature regulation module, humidity regulation module 32 and light regulation module 33 belong to the prior art and are not specifically limited here. The climate factor regulation unit 3 is composed of multiple parts such as the temperature regulation module 31, the humidity regulation module 32 and the light regulation module 33. These modules work together to achieve precise regulation of climate factors such as temperature, humidity and light in the environment.

[0032] The biological stress factor regulating unit 4 inputs carbon dioxide and ozone, which affect the growth of the plant source to be monitored.

[0033] The climate factor adjustment unit 3 and the biotic stress factor adjustment unit 4 simulate the changing conditions of various climate and biotic stress factors of the plant source to be monitored.

[0034] By opening the door, the plant source to be monitored is placed into the closed chamber 1, preventing external factors from affecting the monitoring of plant-derived volatile organic compounds. The air sampling module 21 can select plants in different locations for VOC sampling, reducing manual intervention. The pretreatment module 22 is used to pre-treat the sampled gas to remove impurities and moisture, thereby improving detection accuracy. The detection module 23 uses a VOC sensor 231 and a Fourier infrared gas analyzer 232 to collect real-time information on the concentration of volatile organic compounds in the sampled gas and transmit this information to the data processing module 24. The data processing module 24 is responsible for receiving the volatile organic compound concentration information data. The processor 242 processes and analyzes the volatile organic compound concentration information data in real time and uploads the data to the monitoring platform via the communication unit 243, realizing remote monitoring and data sharing. The climate factor adjustment unit 3 and the biotic stress factor adjustment unit 4 simulate the various climate and biotic stress factor changes of the plant source to be monitored, and can immediately, accurately, and highly accurately reflect the gas pollutant emission data curve of the plant under different climate and biotic stress conditions.

[0035] Preferably, but not limited to, the data processing module 24 further includes a storage unit 244 electrically connected to the processor 242. The storage unit 244 is used to store the volatile organic compound concentration information data to facilitate subsequent data export and provide support for in-depth analysis of the volatile organic compound concentration information data.

[0036] The plant-derived volatile organic compound monitoring and control system also includes an alarm unit 5 electrically connected to the processor 242. The alarm unit 5 is an audible and visual alarm. When the concentration of the VOCs sensor 231 exceeds a preset threshold, the alarm unit 5 is automatically triggered to alert the operator.

[0037] One end of the gas sample fluid tube 211 is located inside the enclosed housing 1, near the plant source to be monitored, while the other end is located outside the enclosed housing 1 and connected to the exhaust gas collection device 6. The provision of the exhaust gas collection device 6 prevents the sampled gas in the gas sample fluid tube 211 from entering the atmosphere and contaminating it.

[0038] In summary, the present solution provides a plant-based volatile organic compound monitoring and control system, which samples VOCs from plant sources by setting up an air intake sampling module 21, thereby reducing manual intervention, and the sampling data has small errors and high credibility; the climate factor adjustment unit 3 and the biological stress factor adjustment unit 4 simulate the various climate and biological stress factor change conditions of the plant source to be monitored, and combined with the detection module 23, can instantly, accurately and highly precisely reflect the gas pollutant emission data curves of plants under different climate and biological stress conditions.

Claims

1. A plant-derived volatile organic compound monitoring and control system, characterized in that: It includes a closed box, a monitoring system, a climate factor adjustment unit and a biological stress factor adjustment unit. A door is provided on one side of the closed box, and a plant source to be monitored is provided in the closed box. The monitoring system includes an intake sampling module, a pre-processing module, a detection module and a data processing module; the intake sampling module includes at least one gas sample fluid tube close to the plant source to be monitored and equipped with an air pump; The pre-processing module includes a filtering device and a dehumidifying device in communication with the gas sample fluid tube; The detection module includes a VOCs sensor and a Fourier infrared gas analyzer, which are located behind the filtering device and the dehumidifying device and are connected to the gas sample fluid pipe; The data processing module includes a power supply, a processor and a communication unit electrically connected to each other; the VOCs sensor is electrically connected to the processor, and the communication unit is electrically connected to the monitoring platform; The climate factor adjustment unit includes a temperature adjustment module, a humidity adjustment module and a light adjustment module arranged in a closed box; The biological stress factor regulating unit inputs gases that affect the growth of the plant source to be monitored.

2. The plant-derived volatile organic compound monitoring and control system according to claim 1, characterized in that: The data processing module further includes a storage unit electrically connected to the processor.

3. The plant-derived volatile organic compound monitoring and control system according to claim 2, characterized in that: It also includes an alarm unit electrically connected to the processor, and the alarm unit is an audible and visual alarm.

4. The plant-derived volatile organic compound monitoring and control system according to claim 3, characterized in that: The filtering device is a particle filter.

5. The plant-derived volatile organic compound monitoring and control system according to claim 4, characterized in that: The dehumidification device is an adsorption dryer.

6. The plant-derived volatile organic compound monitoring and control system according to claim 5, characterized in that: The biological stress factor regulating unit inputs carbon dioxide and ozone into the plant source to be monitored.

7. The plant-derived volatile organic compound monitoring and control system according to claim 6, characterized in that: One end of the gas sample fluid tube is located inside the closed box and close to the plant source to be monitored, and the other end is located outside the closed box and is connected to an exhaust gas collecting device.

Images