Particulate matter concentration detection device

Abstract

The utility model relates to a simple and convenient particulate matter concentration detection device. Through the combination of the darkroom and the light source, a stable detection environment is provided, and the definition of image acquisition is ensured. Secondly, the sampling carrier can conveniently enter and exit from the darkroom through the arrangement of the conveying mechanism, and the detection efficiency is improved. The image acquisition device is matched with the image analysis device, so that the concentration of the particulate matters is automatically and quickly detected, and the requirement of knowing the pollution degree of the atmospheric particulate matters in the environment in real time is met. Through the combination of the technical characteristics, the device can quickly respond to particulate matter concentration detection requirements in real time in the fields of environmental monitoring and pollution prevention and control, and the detection time is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of air pollution detection, and more specifically relates to a simple particle concentration detection device. Background Art

[0002] Air pollution, as a severe challenge in the global environmental field, has become a hot topic in international research due to its complex causes. Among the many air pollutants, atmospheric particulate matter has become the primary factor affecting the quality of the atmospheric environment and human health due to its complex chemical composition and significant harmfulness.

[0003] For the collection of atmospheric particulate matter, although the existing technology provides a variety of methods such as filtration, inertial sedimentation, centrifugal sedimentation, gravity sedimentation and hot surface capture, the most commonly used method is still to extract air through a sampling pump to deposit particulate matter on the filter membrane. Although this method is effective, the color change of the particulate matter layer collected on the filter membrane is not intuitive and requires complex subsequent processing for analysis.

[0004] In terms of calculating particulate matter concentration, the traditional weighing method is accurate, but the operation is cumbersome and time-consuming. In particular, it requires a constant weight process of at least 24 hours, which greatly limits its application in real-time monitoring and rapid response to environmental pollution incidents. In today's society, with the increasing severity of environmental problems, it is particularly important to quickly understand and respond to the degree of atmospheric particulate matter pollution. However, this limitation of the existing technology makes it impossible for us to quickly and accurately assess the state of atmospheric pollution, and thus it is impossible to take effective prevention and control measures in a timely manner.

[0005] Therefore, developing a new technology that can monitor the concentration of atmospheric particulate matter in real time, quickly and accurately has become an urgent problem to be solved in the current environmental field. Utility Model Content

[0006] In view of the above-mentioned technical problems, the utility model provides a particle concentration detection device, which is expected to be able to respond to the particle concentration detection requirements in real time and quickly, shorten the detection time, meet the need for quickly understanding the degree of atmospheric particulate matter pollution, and at the same time improve the precision and accuracy of the particle concentration detection device, ensure the reliability of the detection results, and provide strong support for mastering the atmospheric environment quality data, thereby improving the atmospheric environment quality and protecting human health.

[0007] To achieve the above object, the utility model provides a particle concentration detection device, comprising:

[0008] A darkroom, wherein the darkroom is a closed space enclosed by an upper bottom, a lower bottom and side walls, the upper bottom of the darkroom is provided with a window, and the side walls of the darkroom are provided with a first opening and a second opening;

[0009] A light source, wherein the light source is arranged in a dark room;

[0010] A conveying mechanism, the conveying mechanism comprising a track, the track is arranged on the lower bottom inner wall of the darkroom and passes through the first opening and the second opening, and is used to convey the sampling carrier of the particle concentration to be detected into and out of the darkroom;

[0011] an image acquisition device, the image acquisition device being disposed at the window and opposite to a preset position on the track; and

[0012] An image analyzing device is signal-connected to the image acquiring device.

[0013] Different from the existing technology, the above technical solution provides a stable detection environment and ensures the clarity of image acquisition through the combination of a darkroom and a light source. Secondly, the setting of the transmission mechanism enables the sampling carrier to easily enter and exit the darkroom, thereby improving the detection efficiency. The cooperation between the image acquisition device and the image analysis device realizes the automatic and rapid detection of particulate matter concentration, and meets the demand for real-time understanding of the degree of particulate matter pollution in the ambient atmosphere. The combination of the above technical features enables the device to respond to the requirements of particulate matter concentration detection in real time and quickly in the field of environmental monitoring and pollution control, thereby shortening the detection time.

[0014] In some preferred embodiments, the light source is disposed on the upper bottom of the darkroom. In this way, the light emitted by the light source is in a relative position to the transmission mechanism, which can ensure that the light source is more fully utilized and better improve the clarity of image acquisition.

[0015] In some other preferred embodiments, the light source is an LED light source. Specifically, the LED lamp beads can provide more sufficient red (R), green (G), and blue (B) bands by being composed of red, green, and blue primary color LEDs, which is more conducive to the acquisition and analysis of R, G, and B signals by the image analysis device, thereby improving the accuracy of the detected particle concentration.

[0016] In some embodiments, the conveying mechanism comprises a driving device, a transmission device and a conveying platform. In these embodiments, through the components contained in these common conveying mechanisms, the optimization of the article conveying efficiency, the conveying position and the conveying speed can be achieved.

[0017] In some more preferred embodiments, the conveying platform is provided with a limiting device adapted to the shape and size of the sampling carrier of the particle concentration to be detected. Through such a setting, it is possible to ensure that the sampling carrier maintains a stable position and posture during the conveying process, and prevent it from affecting the accuracy of image acquisition due to shaking or offset, which means that when the sampling carrier enters the darkroom and takes pictures through the image acquisition device, the image obtained will be clearer and more accurate due to the stable position, thereby improving the accuracy of particle concentration calculation. In addition, the stability of the sampling carrier during the conveying process helps to optimize the entire detection process, reduce the time waste caused by repeated photography or data correction, thereby making the entire detection process more efficient and convenient, and suitable for various environmental monitoring and pollution control application scenarios. Secondly, such a setting can enhance the versatility of the device. By adapting to sampling carriers of different shapes and sizes, the device can handle various types of samples without replacing the entire conveying mechanism or adjusting the device structure. The setting of the limiting device makes the placement and removal of the sampling carrier simpler and more intuitive, and the user does not need to perform complex operations or adjustments.

[0018] In some more preferred embodiments, the conveying mechanism is one of pneumatic conveying, track conveying or stepping conveying. These common conveying methods provide precise motion control, ensuring that the position and speed of the sampling carrier in the darkroom are accurate and reliable, and ensuring the stability of the sampling carrier during movement, reducing errors. At the same time, different conveying methods are suitable for different application scenarios, which improves the flexibility and applicability of the device.

[0019] In some other embodiments, a manual control member of the transmission mechanism is further included, and the manual control member includes one of a knob, a switch, and a pull rod. In such an embodiment, the manually controlled track drive system is more convenient for occasions where the speed, direction or position of the track movement needs to be precisely controlled, especially in some small, low-speed or specific application scenarios.

[0020] In some more preferred embodiments, the image acquisition device and the image analysis device are integrated into one device. Further integrating the image acquisition device and the image analysis device into one device significantly improves the integration and convenience of the device. Such an improvement reduces the connection and configuration steps between devices and improves the overall work efficiency. At the same time, the integrated design also makes maintenance and operation easier, reduces the cost of use, and improves the user experience. In addition, the integrated device also helps to improve the stability and security of data transmission.

[0021] In a further preferred embodiment, the image acquisition device and the image analysis device are integrated on a mobile phone equipped with image shooting and image analysis functions. RGB color mode is a color standard in the industry. By adjusting the ratio of red (R), green (G), and blue (B), almost all colors that human vision can perceive can be obtained. Modern smartphones have evolved into portable smart media centers that integrate multiple modules and multiple functions. Using a smartphone to take high-definition filter membrane photos, and then using the mobile phone software to identify RGB and convert it into grayscale, thereby establishing a regression equation for particle concentration and grayscale, this method makes the concentration calculation more efficient and timely. Rapidly obtaining atmospheric particle concentration based on smartphone photography is of great significance for further formulating sampling plans. Integrating the image acquisition device and the image analysis device on a mobile phone with shooting and analysis functions greatly improves the portability and ease of use of the particle concentration detection device. This design allows users to perform detection anytime and anywhere without carrying additional equipment. At the same time, with the powerful computing power and rich application ecology of mobile phones, data analysis is more efficient and accurate, providing users with a more convenient and intelligent particle concentration detection experience.

[0022] In some other preferred embodiments, a shading component is further provided on the upper bottom of the darkroom, and the shading component is used to adjust the size and shape of the window. In these embodiments, the shading component can effectively control the amount of light entering the darkroom, thereby ensuring that the image acquisition device works under stable lighting conditions, improving the image quality and accuracy of analysis. Secondly, adjusting the size and shape of the window makes the detection process more flexible and can adapt to sampling carriers of different sizes and detection requirements. Finally, this design enhances the versatility and practicality of the device, providing users with a more convenient and efficient particle concentration detection experience.

[0023] The above-mentioned technical content-related records are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation method and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0025] In the drawings of the specification:

[0026] Figure 1 A cross-sectional schematic diagram of a particle concentration detection device provided in a specific embodiment of the utility model;

[0027] Figure 2 A schematic diagram of the structure of a particle concentration detection device provided in a specific embodiment of the utility model;

[0028] Figure 3 A schematic diagram of another particle concentration detection device provided in a specific embodiment of the utility model;

[0029] Figure 4 A schematic diagram of another particle concentration detection device provided in a specific embodiment of the utility model;

[0030] Figure 5 A schematic diagram of the structure of another particle concentration detection device provided in a specific embodiment of the utility model.

[0031] The reference numerals in the above drawings are described as follows:

[0032] 1. darkroom; 11. upper bottom; 12. lower bottom; 13. side wall; 131. first opening; 132. second opening; 14. window; 141. light shielding member;

[0033] 2. Image acquisition device; 21. Image analysis device;

[0034] 3. Light source;

[0035] 41. driving device; 42. transmission device; 43. conveying platform; 431. limiting device;

[0036] 51. A first manual control; 52. A second manual control. DETAILED DESCRIPTION

[0037] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0038] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0039] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0040] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0041] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0042] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0043] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0044] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0045] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0046] Embodiment 1

[0047] This embodiment introduces in detail a particle concentration detection device, which is mainly used to measure and analyze the concentration of particles in an environment.

[0048] See also Figure 1 , Figure 2 and Figure 3 The particle concentration detection device of this embodiment includes a closed darkroom 1, which is surrounded by a solid and opaque upper bottom 11, a lower bottom 12 and a side wall 13. This design ensures that the lighting conditions inside the darkroom are controllable, thereby providing a stable detection environment. The darkroom can be designed into a cube, a cuboid or a cylinder according to different requirements. A window 14 is provided at the center of the upper bottom of the darkroom for placing an image acquisition device 2 to capture images. Two openings are provided on the side wall near the lower bottom: a first opening 131 and a second opening 132, which allow the conveying mechanism to pass through, so that the sampling carrier to be detected can be sent into and out of the darkroom. A common practice is to set the first opening and the second opening on two opposite side walls, so that the sampling carrier can go in and out directly with the conveying mechanism, but this is not the only way. In some special application scenarios, the transmission device and the conveying platform of the conveying mechanism can also be set in a curved shape, such as when a larger batch of sampling carriers needs to be analyzed.

[0049] A light source 3 is arranged inside the darkroom. This light source can ensure that there is enough light inside the darkroom when the image acquisition device is shooting. The brightness and stability of the light source are crucial to the quality of the image.

[0050] The conveying mechanism is an important part of the device. It is located on the lower inner wall of the darkroom and passes through the first opening and the second opening. The conveying mechanism is mainly composed of a driving device 41, a transmission device 42 and a conveying platform 43. The driving device provides power, and the transmission device is responsible for transmitting power and driving the conveying platform to move. A limiting device 431 adapted to the shape and size of the sampling carrier is provided on the conveying platform to ensure the stability and accuracy of the sampling carrier during the conveying process.

[0051] The image acquisition device 2 is installed at the window 14 on the bottom of the darkroom and is opposite to a preset position on the conveying platform. When the sampling carrier is conveyed to the preset position, the image acquisition device will immediately capture the image of the particles on the sampling carrier. Subsequently, these images will be transmitted to the image analysis device 21 for processing and analysis. The image analysis device 21 performs recognition and analysis, extracts RGB through the mobile phone software, converts it into grayscale value, and fits it with the known regression equation. After completing the automatic calculation, the particle concentration value can be obtained.

[0052] The particle concentration detection device in this embodiment has the advantages of compact structure, simple operation, accurate detection, etc. Through this device, the concentration of particles in a specific environment can be quickly and accurately measured and analyzed, providing strong support for environmental monitoring and air quality assessment.

[0053] Embodiment 2

[0054] Specific embodiment of the particle concentration detection device (with LED light source)

[0055] Please refer again Figure 2 The particle concentration detection device of this embodiment is improved on the basis of the first embodiment, especially in the setting of the light source. The darkroom is still surrounded by the upper bottom, the lower bottom and the side wall. The inner wall of the darkroom is black to reduce the reflection and interference of light. The darkroom is well sealed and effectively blocks the interference of external light sources. The only light source in the darkroom comes from the fixed light in the device.

[0056] The key improvement is in the light source part. In this embodiment, the LED light source 3 is set in the center of the upper bottom of the darkroom. The LED lamp beads used can provide more sufficient red (R), green (G), and blue (B) bands by being composed of red, green, and blue primary color LEDs. The LED light source not only has high luminous efficiency and long life, but also can control the brightness by adjusting the current or voltage, thereby ensuring the consistency and stability of the lighting conditions in the darkroom. Such a design is crucial for the image acquisition device to capture high-quality particle images.

[0057] In addition, other parts such as the transmission mechanism, the image acquisition device and the image analysis device are the same as those in the first embodiment, and together constitute an efficient and accurate particle concentration detection device.

[0058] Embodiment 3

[0059] Specific embodiment of the particle concentration detection device (with track transmission and limit device)

[0060] See also Figure 4The conveying mechanism in this embodiment adopts a track conveying mode, and is composed of a driving device 41, a transmission device 42 and a conveying platform 43. The driving device drives the conveying platform to move accurately linearly along the fixed track through the transmission device. Such a design not only ensures the stable conveyance of the sampling carrier in the darkroom, but also can accurately locate it to the preset position in front of the image acquisition device.

[0061] Limiting device 431: On the conveying platform, a limiting device is specially provided which is adapted to the shape and size of the sampling carrier of the particle concentration to be detected. These limiting devices can ensure the stability and accuracy of the sampling carrier during the conveying process, prevent it from deflecting or rotating during the movement, and ensure that the image acquisition device can capture clear and accurate particle images.

[0062] Manual control: In order to facilitate the user to operate and control the operation of the conveying mechanism, a first manual control 51 and a second manual control 52 are provided, which are used to operate and control the switch of the conveying mechanism and the light source respectively. These manual control parts include knobs, switches or pull rods, etc. The user can select a suitable control method to start, stop or adjust the running speed of the conveying mechanism according to the needs.

[0063] Light source and image acquisition: An LED light source is set at the center of the upper bottom of the darkroom to provide sufficient light for the image acquisition device. The image acquisition device 2 is installed at the window, opposite to the preset position on the conveying platform, and can capture the image of the particles on the sampling carrier in real time. The image analysis device 21 is connected to the image acquisition device 2 signal, responsible for processing and analyzing these image data, and calculating the concentration of the particles.

[0064] The particle concentration detection device of this embodiment significantly improves the stability and accuracy of the sampling carrier during the transmission process by adopting track transmission and setting a limit device, thereby ensuring the reliability of the detection result. At the same time, the addition of a manual control part also makes the operation of the device more flexible and convenient.

[0065] Embodiment 4

[0066] Specific embodiment of the particle concentration detection device (integrated mobile phone control and adjustable shading component)

[0067] See also Figure 5 The core part of the particle concentration detection device in this embodiment is a closed darkroom, which is surrounded by an upper bottom, a lower bottom and side walls. A window is provided in the center of the upper bottom of the darkroom for the image acquisition device to capture images. In particular, the upper bottom is also equipped with a light shielding component 141, which can flexibly adjust the size and shape of the window. This design allows the user to accurately control the amount of light entering the darkroom according to actual detection needs, thereby improving the quality of the image and the accuracy of the detection.

[0068] In terms of image acquisition and analysis, this embodiment adopts a highly integrated design. The image acquisition device and the image analysis device 21 are integrated into one device, and this device is a mobile phone equipped with image shooting and image analysis functions (integrated image acquisition device 2 and image analysis device 21). Such a design not only simplifies the structure of the device and reduces costs, but also allows users to detect and analyze particle concentrations through mobile phones anytime and anywhere. The high-performance processor and large-capacity storage space of the mobile phone provide strong support for image analysis, ensuring the accuracy and reliability of the detection results.

[0069] In addition, the device is also equipped with a conveying mechanism, which is arranged on the lower inner wall of the darkroom and passes through the first opening and the second opening of the side wall. The conveying mechanism includes a driving device, a transmission device and a conveying platform, which can accurately convey the sampling carrier of the particle concentration to be detected into and out of the darkroom. A limiting device adapted to the shape and size of the sampling carrier is also arranged on the conveying platform to ensure the stability of the sampling carrier during the conveying process.

[0070] In summary, the particle concentration detection device of this embodiment provides users with a more convenient and efficient particle concentration detection solution through integrated design and innovation of adjustable shading components.

[0071] The following is a specific operation method of the particle concentration detection device according to the above embodiment:

[0072] 1. Preparation

[0073] Check the integrity of the device: ensure that all parts of the particle concentration detection device (darkroom, light source, transmission mechanism, image acquisition device, image analysis device, etc.) are installed correctly and intact.

[0074] Environmental preparation: Place the device in a stable, undisturbed environment to ensure that there is no significant wind or air conditioning airflow that may affect the test results.

[0075] Power connection: Connect the device to a stable power source and turn on the power switch to ensure that the device is in normal working condition.

[0076] Check the shading components: If necessary, adjust the shading components on the top and bottom of the darkroom to control the amount of light entering the darkroom.

[0077] 2. Setting parameters

[0078] Start the mobile phone application: Open the particle concentration detection application on the mobile phone and ensure that the image acquisition device and image analysis device of the mobile phone can work normally.

[0079] Set measurement parameters: Select the appropriate measurement unit (such as micrograms / cubic meter) and time interval (such as every minute) in the application, and set other required measurement parameters (such as alarm thresholds, etc.).

[0080] 3. Start measuring

[0081] Place the sampling carrier: Place the filter membrane that has collected a certain amount of particulate matter, that is, the sampling carrier filter membrane with the particle concentration to be tested, on the limiting device of the conveying platform to ensure that the sampling carrier is stable.

[0082] Start the conveying mechanism: Start the conveying mechanism through the mobile phone application or the manual control part of the device, so that the sampling carrier enters the darkroom through the first opening and moves toward the window along the preset track.

[0083] Image acquisition: When the sampling carrier moves to a position relative to the image acquisition device, the mobile phone application will automatically control the image acquisition device to capture the image of the particles on the sampling carrier.

[0084] 4. Data Analysis and Recording

[0085] Image processing and analysis: The mobile phone application transmits the captured image to the image analysis device for processing and analysis. The mobile phone software identifies the RGB on the image and converts it into grayscale, thereby establishing a regression equation between particle concentration and grayscale to calculate the particle concentration and display the result on the mobile phone screen.

[0086] Data Logging: Users can choose to save or print measurement results for later reference or reporting.

[0087] 5. End of measurement and cleanup

[0088] Transporting the sampling carrier: The measured sampling carrier is sent out of the darkroom by controlling the transport mechanism.

[0089] Cleaning and Maintenance: Clean the darkroom, transmission mechanism and image acquisition device regularly to ensure the normal operation and accuracy of the device.

[0090] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A particle concentration detection device, characterized in that: include: A darkroom, wherein the darkroom is a closed space enclosed by an upper bottom, a lower bottom and side walls, the upper bottom of the darkroom is provided with a window, and the side walls of the darkroom are provided with a first opening and a second opening; A light source, wherein the light source is arranged in a dark room; A conveying mechanism, the conveying mechanism comprising a track, the track is arranged on the lower bottom inner wall of the darkroom and passes through the first opening and the second opening, and is used to convey the sampling carrier of the particle concentration to be detected into and out of the darkroom; An image acquisition device, the image acquisition device is arranged at the window and is opposite to a preset position on the track; and An image analyzing device is signal-connected to the image acquiring device.

2. The particle concentration detection device according to claim 1, characterized in that: The light source is arranged on the upper bottom of the dark room.

3. The particle concentration detection device according to claim 2, characterized in that: The light source is an LED light source.

4. The particle concentration detection device according to claim 1, characterized in that: The conveying mechanism comprises a driving device, a transmission device and a conveying platform.

5. The particle concentration detection device according to claim 4, characterized in that: The conveying platform is provided with a limiting device which is matched with the shape and size of the sampling carrier of the particle concentration to be detected.

6. The particle concentration detection device according to claim 4, characterized in that: The conveying mechanism is one of pneumatic conveying, track conveying or step-by-step conveying.

7. The particle concentration detection device according to claim 4, characterized in that: It also includes a manual control part of the transmission mechanism, and the manual control part includes one of a knob, a switch, and a pull rod.

8. The particle concentration detection device according to claim 1, characterized in that: The image acquisition device and the image analysis device are integrated into one device.

9. The particle concentration detection device according to claim 8, characterized in that: The image acquisition device and the image analysis device are integrated on a mobile phone equipped with image shooting function and image analysis function.

10. The particle concentration detection device according to claim 1, characterized in that: The upper bottom of the darkroom is also provided with a shading component, and the shading component is used to adjust the size and shape of the window.

Images