Device for detecting moisture content of material

Abstract

The utility model provides a material moisture content detection device. The material moisture content detection device comprises a fixed support, a detection unit and a control unit, the image acquisition device is mounted on the fixed bracket, is positioned above the to-be-detected material and is used for acquiring an image of the to-be-detected material; and the infrared sensor is mounted on the fixed bracket, is positioned above the to-be-detected material and is used for detecting infrared reflection parameters of the to-be-detected material. The above scheme can improve the accuracy of the moisture content detection result.

Description

Technical Field

[0001] This utility model relates to the field of material moisture content detection technology, and in particular to a material moisture content detection device. Background Technology

[0002] The main raw materials for making concrete include sand, cement, and aggregates. Cement concrete is produced by mixing water, aggregates, cement, and sand in a specific ratio using a mixer. Each raw material plays a different role in the concrete. For example, aggregates not only act as fillers but also form the concrete's skeleton, increasing its strength. The quality of concrete is greatly influenced by the amount of aggregate used.

[0003] To ensure concrete quality, it is usually necessary to sample and test raw materials, and the moisture content of these materials is a crucial parameter in this process. Currently, manual sampling is commonly used to test raw materials daily, and the moisture content of these samples is taken as the final moisture content of the raw materials. However, due to the large quantity of raw materials and the extended feeding process during concrete preparation, this sampling method cannot accurately represent the actual moisture content of the raw materials. This results in low accuracy of the moisture content test results, which is detrimental to product quality control. Utility Model Content

[0004] The technical problem solved by this invention is that the accuracy of existing raw material moisture content detection results is low.

[0005] To address the aforementioned technical problems, this utility model provides a material moisture content detection device, comprising: a fixed bracket; an image acquisition device mounted on the fixed bracket and located above the material to be tested, for acquiring an image of the material to be tested; and an infrared sensor mounted on the fixed bracket and located above the material to be tested, for detecting the infrared reflection parameters of the material to be tested.

[0006] Optionally, the material moisture content detection device further includes: a supplementary lighting device, which is connected to the fixed bracket and is used to provide supplementary lighting when the image acquisition device acquires images.

[0007] Optionally, the number of supplementary lighting devices is multiple, and the multiple supplementary lighting devices are arranged around the image acquisition device.

[0008] Optionally, the number of supplementary lighting devices is two, and the two supplementary lighting devices are symmetrically arranged on both sides of the image acquisition device.

[0009] Optionally, the illumination area of ​​the supplementary lighting device on the material covers the image acquisition area of ​​the image acquisition device.

[0010] Optionally, the center of the illumination area is aligned with the center of the image acquisition area.

[0011] Optionally, the fixed bracket includes: a body for connecting the belt conveyor frame of the material to be tested; and a vertical rod connected to the body and movable toward or away from the material to be tested, the vertical rod being used to mount the image acquisition device and the infrared sensor.

[0012] Optionally, the vertical rod is provided with a sliding groove, the sliding groove extending in the same direction as the vertical rod, the sliding groove being used to install the image acquisition device and the infrared sensor, wherein the image acquisition device and the infrared sensor can move along the sliding groove.

[0013] Optionally, the material moisture content detection device further includes a terminal device connected to the image acquisition device and the infrared sensor, used to receive the image and the infrared reflection parameters, and to display the moisture content detection and analysis results.

[0014] Compared with the prior art, the technical solution of this utility model embodiment has the following beneficial effects:

[0015] An image acquisition device and an infrared sensor are mounted on top of the material to be tested using a fixed bracket. The image acquisition device captures images of the material, while the infrared sensor collects its infrared reflectance parameters. These two parameters—the image of the material and the infrared reflectance parameters—serve as the two parameters for moisture content detection. This allows for regular or real-time moisture content testing as needed, ensuring that the results accurately reflect the true moisture content of the material and improving the accuracy of moisture content detection. When applied to concrete production, this helps improve quality control and product stability.

[0016] Furthermore, supplementary lighting can increase the ambient brightness of the area to be imaged, thereby improving the clarity of the image acquired by the image acquisition device.

[0017] Furthermore, two supplementary lighting devices are symmetrically arranged on both sides of the image acquisition device. This ensures effective supplementary lighting while maintaining the overall simplicity of the device and saving costs.

[0018] Furthermore, aligning the center of the irradiation area with the center of the image acquisition area further ensures the supplementary lighting effect, thereby improving the brightness of the optimal image acquisition area of ​​the image acquisition device and enhancing the quality of the acquired image. This allows the acquired image to more accurately reflect the actual condition of the material, thus improving the accuracy of moisture content analysis when performing moisture content analysis based on the acquired image. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a material moisture content detection device according to an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a vertical rod in one embodiment of this utility model;

[0021] Figure 3 yes Figure 2 A schematic diagram along section line AA. Detailed Implementation

[0022] As mentioned above, currently, raw materials are typically sampled and tested daily using manual sampling, and the moisture content of the sampled material is taken as the moisture content of the raw materials. However, due to the large quantity of raw materials and the need for continuous feeding during concrete preparation, the moisture content of the raw materials obtained by this sampling method cannot accurately represent the actual moisture content of the raw materials, resulting in low accuracy of the moisture content test results, which is detrimental to product quality control.

[0023] To address the aforementioned issues, in this embodiment of the invention, an image acquisition device and an infrared sensor are mounted above the material to be tested using a fixed bracket. The image acquisition device acquires an image of the material, and the infrared sensor acquires its infrared reflection parameters. Using the image and infrared reflection parameters of the material as two parameters for moisture content detection allows for timely or real-time moisture content testing as needed. This ensures that the obtained moisture content test results accurately reflect the true moisture content of the material, improving the accuracy of moisture content detection. When applied to concrete production, this helps improve quality control and enhance product stability.

[0024] To make the above-mentioned objectives, features and beneficial effects of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 A schematic diagram of a material moisture content detection device according to an embodiment of this utility model is given, wherein, Figure 1 The following diagram illustrates the installation of a material moisture content detection device on a belt conveyor. Figure 1 The specific structure of the material moisture content detection device is described.

[0026] The material moisture content detection device includes a fixed bracket 10, an image acquisition device 20, and an infrared sensor 30. The image acquisition device 20 is mounted on the fixed bracket 10 and positioned above the material to be tested, for acquiring images of the material. The infrared sensor 30 is mounted on the fixed bracket 10 and positioned above the material to be tested, for detecting the infrared reflectance parameters of the material.

[0027] In practice, the image acquisition device 20 can be a camera, and the resolution of the camera can be configured according to the actual detection accuracy requirements.

[0028] The height of the image acquisition device 20 from the material to be detected, or the height of the infrared sensor 30 from the material to be detected, can be configured according to actual needs. For example, the height of the image acquisition device 20 or the infrared sensor 30 from the material to be detected is 50 to 60 centimeters. It should be noted that the above examples are merely illustrative for ease of understanding and do not limit the scope of protection of this utility model. In practice, other values ​​greater than 60 centimeters or other values ​​less than 50 centimeters can also be configured.

[0029] As described above, the image acquisition device 20 and the infrared sensor 30 are mounted above the material to be tested using a fixed bracket 10. The image acquisition device 20 acquires images of the material, and the infrared sensor 30 acquires its infrared reflection parameters. Using the image and infrared reflection parameters of the material as two parameters for moisture content detection allows for timely or real-time moisture content testing based on actual needs. This ensures that the obtained moisture content test results accurately reflect the true moisture content of the material, improving the accuracy of moisture content detection. When applied to concrete production, this helps improve quality control and product stability.

[0030] In some embodiments, the material moisture content detection device may further include a data output terminal. The data output terminal is used to output detection results, such as images and infrared reflectance parameters, to a terminal device for detection and analysis. The terminal device for detection and analysis can obtain the moisture content detection result based on the detection results, such as images and infrared reflectance parameters.

[0031] In some scenarios, the ambient light may be dim. When the ambient light is dim, it may affect the clarity of the image acquired by the image acquisition device 20, thereby affecting the accuracy of the moisture content detection results. To further improve the accuracy of the moisture content detection results, in this embodiment of the invention, the material moisture content detection device may further include a supplementary lighting device 40. The supplementary lighting device 40 is connected to the fixed bracket 10 and is used to provide supplementary lighting for the image acquisition device 20 when acquiring images. The supplementary lighting device 40 can increase the ambient brightness of the area to be captured, thereby improving the clarity of the image acquired by the image acquisition device 20.

[0032] In some embodiments, the supplementary lighting device 40 may be a supplementary light or other device with supplementary lighting function.

[0033] In some embodiments, the number of supplementary lighting devices 40 can be multiple, and the multiple supplementary lighting devices 40 are arranged around the image acquisition device 20. By improving the supplementary lighting effect, the influence of the shadow generated by the material to be tested on the image acquisition effect can be reduced or even avoided as much as possible, so as to reduce the influence of the shadow of the material to be tested on the accuracy of moisture content analysis, and further improve the accuracy of moisture content detection results.

[0034] In some non-limiting embodiments, the number of the supplementary lighting devices 40 is two, and the two supplementary lighting devices 40 are symmetrically arranged on both sides of the image acquisition device 20. In this way, while ensuring the supplementary lighting effect, the overall device simplicity can be taken into account, thus saving costs.

[0035] For example, see Figure 1 The given layout diagram of a supplementary lighting device 40 shows that, along the material conveying direction, the supplementary lighting device 40, the image acquisition device 20, the supplementary lighting device 40, and the infrared sensor 30 are arranged in sequence.

[0036] In some embodiments, the illumination portions of both supplementary lighting devices 40 are angled toward the image acquisition device 20.

[0037] In some embodiments, the illumination area of ​​the supplementary lighting device 40 on the material covers the image acquisition area of ​​the image acquisition device 20.

[0038] Furthermore, the center of the irradiation area is aligned with the center of the image acquisition area to further ensure the supplementary lighting effect, thereby improving the brightness of the optimal image acquisition area of ​​the image acquisition device 20 and enhancing the acquired image quality. This allows the acquired image to more realistically reflect the actual condition of the material, and subsequently, when performing moisture content analysis based on the acquired image, the accuracy of the moisture content analysis can be improved.

[0039] In specific implementation, the fixed bracket 10 can be installed on the ground, or as follows: Figure 1As shown, it is installed on the frame 200 of the belt conveyor. The installation of the fixing bracket 10 can be adjusted according to the specific requirements of the actual working scenario. The frame 200 of the belt conveyor supports the belt, which, when rotating, conveys the material to be tested placed on it.

[0040] In a specific implementation, the fixed support 10 includes a body 11 and a vertical rod 12. The body 11 is used to connect to the belt conveyor frame of the material to be tested. The vertical rod 12 is connected to the body 11 and can move towards or away from the material to be tested. The vertical rod 12 is used to mount the image acquisition device 20 and the infrared sensor 30.

[0041] In some embodiments, there can be multiple vertical rods 12, with the image acquisition device 20 and the infrared sensor 30 each equipped with a corresponding vertical rod 12. This facilitates independent adjustment of the height of the image acquisition device 20 and the infrared sensor 30 relative to the material to be detected, improving the flexibility of height adjustment for the image acquisition device 20 and the infrared sensor 30.

[0042] In some non-limiting embodiments, the body 11 may include a frame and a crossbar, and the vertical bar 12 may be mounted on the crossbar. In practice, the specific structure of the body 11 can be configured according to requirements, and no limitation is made here.

[0043] In some embodiments, when the material moisture content detection device includes a supplementary lighting device 40, corresponding vertical rods 12 can be configured according to the number of supplementary lighting devices 40 for mounting the supplementary lighting devices 40. When there are multiple supplementary lighting devices 40, the vertical rods 12 corresponding to the multiple supplementary lighting devices 40 can be adjusted independently or in conjunction. When adjusted in conjunction, the height of the multiple supplementary lighting devices 40 from the material to be tested can be adjusted synchronously. It is understood that some supplementary lighting devices 40 can be mounted on the vertical rods 12, and some supplementary lighting devices 40 can be mounted on the main body 11. For example, some supplementary lighting devices 40 can be mounted on the horizontal rods in the main body 11.

[0044] In specific implementation, see Figure 2 A schematic diagram of the structure of a vertical rod according to an embodiment of this utility model is provided. Figure 3 yes Figure 2 A schematic diagram along section line AA, combined with... Figure 2 and Figure 3The vertical rod is provided with a sliding groove 121, the extension direction of which is the same as that of the vertical rod. The sliding groove 121 is used to mount the image acquisition device 20 and the infrared sensor 30, wherein the image acquisition device 20 and the infrared sensor 30 can move along the sliding groove 121. Specifically, a slider 122 adapted to the sliding groove 121 can be provided, and the slider 122 can slide along the sliding groove 121. The slider 122 is connected to the image acquisition device 20 or the infrared sensor 30, and moves synchronously with the connected image acquisition device 20 or the infrared sensor 30. The sliding groove 121 helps to achieve stepless adjustment of the image acquisition device 20 and the infrared sensor 30, improving the accuracy of the height position adjustment of the image acquisition device 20 and the infrared sensor 30.

[0045] In a specific implementation, the material moisture content detection device also includes a terminal device, which is connected to the image acquisition device 20 and the infrared sensor 30, for receiving the image and the infrared reflection parameters, and displaying the moisture content detection and analysis results.

[0046] Although the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A material moisture content detection device, characterized in that, include: Fixed bracket; An image acquisition device is mounted on the fixed bracket and positioned above the material to be tested, for acquiring images of the material to be tested; An infrared sensor is mounted on the fixed bracket and located above the material to be tested, for detecting the infrared reflection parameters of the material to be tested.

2. The material moisture content detection device as described in claim 1, characterized in that, Also includes: A supplementary lighting device is connected to the fixed bracket and is used to provide supplementary lighting when the image acquisition device acquires images.

3. The material moisture content detection device as described in claim 2, characterized in that, The number of supplementary lighting devices is multiple, and the multiple supplementary lighting devices are arranged around the image acquisition device.

4. The material moisture content detection device as described in claim 3, characterized in that, The number of supplementary lighting devices is two, and the two supplementary lighting devices are symmetrically arranged on both sides of the image acquisition device.

5. The material moisture content detection device according to any one of claims 2 to 4, characterized in that, The illumination area of ​​the supplementary lighting device on the material covers the image acquisition area of ​​the image acquisition device.

6. The material moisture content detection device as described in claim 5, characterized in that, The center of the illumination area is aligned with the center of the image acquisition area.

7. The material moisture content detection device as described in claim 1, characterized in that, The fixing bracket includes: The main body is used to connect the belt conveyor frame of the material to be tested; A vertical rod, connected to the main body, can move toward or away from the material to be detected. The vertical rod is used to mount the image acquisition device and the infrared sensor.

8. The material moisture content detection device as described in claim 7, characterized in that, The vertical rod is provided with a sliding groove, the sliding groove extending in the same direction as the vertical rod. The sliding groove is used to install the image acquisition device and the infrared sensor, wherein the image acquisition device and the infrared sensor can move along the sliding groove.

9. The material moisture content detection device as described in claim 1, characterized in that, It also includes a terminal device connected to the image acquisition device and the infrared sensor, used to receive the image and the infrared reflection parameters, and to display the moisture content detection and analysis results.

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