Non-destructive rapid sorting device and method based on quantum dot spectrum sensor

Abstract

The invention provides a nondestructive rapid sorting device and method based on a quantum dot spectrum sensor. The nondestructive rapid sorting device comprises a device body, a control module, a consignment robot, a universal detection channel, a special detection channel and a sterilization channel. The consignment robot is used for consignment of products; the sterilization channel is used for sterilizing the consignment robot; the universal detection channel is provided with a universal quantum dot spectrum sensor and image recognition equipment, and is used for recognizing the product type of a to-be-detected product and detecting basic indexes; the special detection channel is provided with a special quantum dot spectrum sensor and is used for detecting specific indexes; and the control module is used for consigning the products needing secondary detection to the corresponding channels for detection and rating through the consigning robot, and sorting and delivering the detected products. Through the multi-stage detection process of the general detection channel and the special detection channel, and in combination with the consignment robot and the sterilization channel, efficient and accurate detection and automatic sorting of different types of products are realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of food detection, and in particular relates to a non-destructive rapid sorting device and method based on a quantum dot spectral sensor. Background Art

[0002] Food safety testing technology plays an increasingly important role in ensuring food safety. At present, there are two development directions for food safety testing technology in the world: one is that traditional laboratory testing is developing towards increasingly sophisticated equipment and gradually lowering the detection limit; the other is that on-site testing technology is developing towards rapid testing technology and portable equipment.

[0003] In the field of food testing, traditional testing methods require food crushing and physical and chemical analysis. The process is very complicated and not only time-consuming and labor-intensive, but also destroys the integrity of the food. It is not suitable for the modern industrial production environment where fast, efficient testing is required without affecting the operation of the production line.

[0004] Although the existing rapid detection technology has improved the detection efficiency to a certain extent, there are still many problems: on the one hand, the traditional detection method is complicated and will damage food, which is not suitable for the needs of modern industrial production; on the other hand, the detection range of general spectral detection equipment is limited, and it is difficult to cope with the detection of various types of items. In addition, the detection efficiency of fixed equipment is low, and the layout of multiple production lines is prone to waste of resources. In addition, although the general quantum dot spectral sensor has strong compatibility, it is inferior to the special sensor in the detection precision and accuracy of specific indicators. In addition, the existing detection system has a low degree of automation and much manual intervention, which affects the accuracy and reliability of detection. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a non-destructive and rapid sorting device and method based on a quantum dot spectral sensor to solve the problems existing in the prior art.

[0006] In order to achieve the above object, the technical solution provided by the present invention is as follows: The first aspect of the present invention provides a non-destructive rapid sorting device based on a quantum dot spectral sensor, comprising: The device body, control module, shipping robot, general detection channel, special detection channel and sterilization channel; The consignment robot, the general detection channel, the special detection channel and the sterilization channel are all arranged inside the device body; The consignment robot is used to interact with the robot equipment outside the device to obtain the products to be inspected and consign them to the corresponding channel to complete the inspection or deliver the inspected products; The sterilization channel is used to sterilize the consignment robot before each consignment inspection; The universal detection channel is equipped with a universal quantum dot spectrum sensor and an image recognition device, which are used to identify the product type of the product to be detected through the image recognition device and to detect the basic indicators of the product to be detected through the universal quantum dot spectrum sensor; The dedicated detection channel is equipped with a dedicated quantum dot spectrum sensor, which is used to detect specific indicators of the product to be detected through the dedicated quantum dot spectrum sensor; The control module is used to determine whether products that have passed the general inspection channel inspection require secondary inspection based on product type and basic indicators, and to consign products that require secondary inspection to the corresponding dedicated inspection channel for inspection and grading through a consignment robot; it is also used to sort and deliver products that have passed the final inspection or grading as inspected products to external robot equipment through a consignment robot.

[0007] Further, the universal detection channel includes: a detection module and a channel; The detection module is arranged above the detection channel; the consignment robot consigns the product to be detected to the channel for detection; The detection module includes a light source, a universal quantum dot spectrum sensor, and an image recognition device; Universal quantum dot spectral sensor is used to detect the basic indicators of the product to be tested; The image recognition device includes a depth camera and an RGB camera, which are used to obtain the shape and appearance information of the product to be inspected so as to identify the product type of the product to be inspected; The light source is used to provide the illumination required for universal quantum dot spectral sensors and image recognition equipment to perform detection.

[0008] Further, the dedicated detection channel includes a plurality of detection channels for detecting different types of specific indicators, each detection channel including: a detection module, a detector fixing frame, a guide rail and a channel; The guide rails are vertically arranged on both sides of the channel; The detector fixing frame is arranged horizontally between the guide rails on both sides and can move vertically in the channel along the guide rails; The consignment robot consigns the products to be tested to the channel for testing; The detection module includes a light source and a dedicated quantum dot spectrum sensor; The light source and the dedicated quantum dot spectrum sensor are both fixed on the detector fixing frame; the detector fixing frame and the guide rail are used to cooperate and adjust to the optimal height required for detection by the dedicated quantum dot spectrum sensor; the optimal height is determined according to the product type and the type of specific indicators detected by the dedicated quantum dot spectrum sensor; Special quantum dot spectral sensors are used to detect specific indicators of the product to be tested; The light source is used to provide the illumination required for the dedicated quantum dot spectrum sensor to perform detection.

[0009] Furthermore, basic indicators include nutrient content indicators and total colony count indicators, and specific indicators include detailed nutrient content indicators, colony type and quantity indicators, and residue indicators.

[0010] Furthermore, the interior of the device body is also provided with: a wireless charging channel; The wireless charging channel is provided with an entrance and multiple exits, and the sterilization channel is provided on the wireless charging channel, and the consignment robot interacts with different external robot devices through the entrance and the exit; The wireless charging channel is also equipped with a wireless charging module for wirelessly charging the shipping robot.

[0011] Furthermore, the sterilization channel includes: a common sterilization channel and an enhanced sterilization channel; The ordinary sterilization channel and the enhanced sterilization channel are used to sterilize the shipping robot after the delivered products when the total colony count of the products shipped by the shipping robot is normal or exceeds the standard respectively.

[0012] Furthermore, the shipping robot includes: a robot body, a wireless charging module, a wireless communication module and a position detection module; The shipping robot is used to ship products through the robot body; it is also used to perform wireless charging in a wireless charging channel through a wireless charging module; it is also used to interact with different external robot devices through a wireless communication module; and it is also used to detect the real-time position through a position detection module.

[0013] Further, it also includes: fast track; Fast Track is used by the consignment robot to deliver products that do not require secondary inspection to an external robotic facility.

[0014] Furthermore, the product type and basic indicators are used to determine whether the product that has been tested through the general testing channel needs to undergo secondary testing, including: For products that have been tested through the general testing channel, if the product is judged to be a product that requires rating based on the product type and the total colony count in the basic indicators meets the requirements, the corresponding product is judged to be a product that requires secondary testing.

[0015] The second aspect of the present invention further provides a lossless and rapid sorting method based on a quantum dot spectral sensor, which is implemented based on the lossless and rapid sorting device based on a quantum dot spectral sensor as in the first aspect, and comprises the following steps: responding to products to be inspected delivered by a robotic device external to the apparatus body; Assign the shipping robot to interact with the robotic equipment to obtain the products to be inspected; The products to be tested are transported to the general testing channel by a transport robot to obtain the product type and basic indicators of the products to be tested; Determine whether the product needs secondary testing based on product type and basic indicators; If so, the products that require secondary testing will be shipped to the corresponding dedicated testing channel for testing and grading by a shipping robot; The products that have been finally inspected or graded are treated as inspected products and delivered to corresponding external robot equipment via a shipping robot; The consignment robot enters the sterilization channel for sterilization and disinfection, and then enters the waiting area to wait for the next round of work.

[0016] In summary, the present invention provides a non-destructive rapid sorting device based on quantum dot spectral sensors, including a device body, a control module, a consignment robot, a universal detection channel, a dedicated detection channel and a sterilization channel; the consignment robot, the universal detection channel, the dedicated detection channel and the sterilization channel are all arranged inside the device body; the consignment robot is used to interact with the robot equipment outside the device body to obtain the products to be detected and consign them to the corresponding channels to complete the detection or deliver the detected products; the sterilization channel is used to sterilize the consignment robot before each consignment detection; the universal detection channel is configured with a universal quantum dot spectral sensor and an image recognition device, which are used to respectively identify the products through images. The image recognition device identifies the product type of the product to be detected and detects the basic indicators of the product to be detected through a universal quantum dot spectrum sensor; the dedicated detection channel is equipped with a dedicated quantum dot spectrum sensor, which is used to detect specific indicators of the product to be detected through a dedicated quantum dot spectrum sensor; the control module is used to determine whether the product detected by the universal detection channel needs to be tested according to the product type and basic indicators, and to consign the products that need secondary detection to the corresponding dedicated detection channel for detection and rating through a consignment robot; it is also used to sort and deliver the products that have been finally tested or rated as tested products to external robot equipment through a consignment robot. The present invention realizes efficient and accurate detection and automatic sorting of different types of products through a multi-level detection process of universal detection channels and dedicated detection channels, combined with consignment robots and sterilization channels.

[0017] The present invention also provides a non-destructive and rapid sorting method based on a quantum dot spectral sensor. This method has similar effects to the above-mentioned device when implemented, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The overall composition block diagram of a non-destructive rapid sorting device based on quantum dot spectral sensor; Figure 2 It is a structural schematic diagram of a universal detection channel; Figure 3 It is a structural schematic diagram of a dedicated detection channel; Figure 4 This is a schematic diagram of the structure of the shipping robot. DETAILED DESCRIPTION

[0020] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The following first introduces quantum dot spectral sensors.

[0022] Quantum dot spectral sensor is an optical sensing technology based on semiconductor quantum dots, which has unique band structure and optical properties and can respond to tiny physical and chemical changes.

[0023] 1. Main features Highly sensitive: Quantum dot spectral sensors are very sensitive to small changes in the environment and can detect trace amounts of chemicals and biomolecules. Highly selective: Since different chemicals and biomolecules have different absorption and fluorescence spectra, quantum dot spectral sensors can selectively detect and identify them by modulating the optical properties of quantum dots. Good repeatability: Quantum dots have extremely long exciton lifetimes and excellent photostability, so they can maintain consistent responses over multiple measurements.

[0024] 2. Fabrication and targeted detection of quantum dot spectral sensors Quantum dot spectral sensors can be tailored to specific needs to detect specific products, which mainly involves steps such as quantum dot preparation, sensor assembly and calibration. 3. Preparation of Quantum Dots Common preparation methods include solution method, vapor deposition method and ion beam etching method. These methods can control the particle size, shape and distribution of quantum dots, thereby affecting their optical properties. In order to improve the detection accuracy of a certain substance, the properties of quantum dots can be optimized by adjusting parameters in the preparation process, such as reaction conditions, raw material ratio, etc.

[0025] 4. Sensor assembly The prepared quantum dots need to be assembled with other components to form a complete sensor. Common assembly methods include welding, bonding, and micromanipulation. In order to improve the detection accuracy, the structural design of the sensor can be optimized, such as increasing the number of quantum dots, adjusting their distribution, etc., to improve the sensitivity and selectivity of the sensor.

[0026] 5. Sensor Calibration Before use, the quantum dot spectral sensor needs to be calibrated to ensure the accuracy of the measurement results. Calibration includes testing the sensitivity, linearity and stability of the sensor. Through calibration, the performance of the sensor can be further optimized and its detection accuracy for specific substances can be improved.

[0027] 6. Application of quantum dot spectral sensors in specific product detection Quantum dot spectral sensors have broad application prospects in specific product detection. For example: Biomedical testing: Quantum dot spectral sensors can be used to detect biomarkers and pathogens to achieve rapid, sensitive and selective diagnosis. Environmental monitoring: Quantum dot spectral sensors can be used to detect pollutants in water and air to achieve efficient, accurate and real-time monitoring. Food safety: Quantum dot spectral sensors can be used to detect food ingredients and additives to ensure food safety and quality. In summary, quantum dot spectral sensors have unique advantages and broad application prospects. Through targeted production and optimization, their detection accuracy for specific substances can be further improved. The targeted production of quantum dot spectral sensors can indeed be optimized by increasing the number of quantum dots in a certain spectrum, adjusting their distribution or other related parameters, thereby improving the detection accuracy of specific substances. The following are specific implementation methods and considerations: 1. Increase the number of quantum dots for a specific spectrum Improve detection sensitivity: Increasing the number of quantum dots in a specific spectrum can enhance the sensor's ability to absorb and emit light within that spectral range, thereby improving detection sensitivity. This is especially important for detecting low concentrations of target substances. Optimize quantum dot size and shape: Quantum dots of different sizes and shapes have different optical properties, such as the position and intensity of absorption and emission peaks. By optimizing the size and shape of quantum dots, they can be made to more accurately match the absorption or emission spectrum of the target substance, improving detection accuracy. 2. Adjust the distribution of quantum dots Improve detection uniformity: The uniformity of the distribution of quantum dots in the sensor will affect the accuracy and repeatability of the detection. By optimizing the distribution of quantum dots, the detection performance of the sensor at different locations can be ensured to be consistent, improving the detection uniformity. Achieve multi-dimensional detection: Arrange quantum dots with different spectral responses on the sensor in a specific distribution to achieve multi-dimensional detection. For example, a sensor can be designed in which some areas are rich in quantum dots that are sensitive to specific substances, while other areas are rich in quantum dots that are sensitive to other substances. In this way, the sensor can detect multiple substances at the same time, improving detection efficiency and accuracy. 3. Other optimization measures Surface modification and passivation: Modifying and passivating the surface of quantum dots can reduce surface defects and non-radiative recombination, and improve the luminescence efficiency and stability of quantum dots. This is of great significance for improving the signal-to-noise ratio and stability of the detection signal. Integrated microfluidics: Combining quantum dot spectral sensors with microfluidics can realize automatic sampling, separation and detection of samples. This can not only improve detection efficiency, but also reduce sample loss and contamination, and improve detection accuracy. Combined with data processing and algorithms: Using advanced data processing and algorithm technologies, such as machine learning, deep learning, etc., to process and analyze the spectral data detected by the sensor can further improve the detection accuracy. These algorithms can automatically identify spectral features, remove noise and interference, and accurately identify target substances. 4. Practical Application Cases In the field of food safety testing, some targeted quantum dot spectral sensors have been developed for detecting specific substances. For example, by optimizing the size and shape of quantum dots, they can be made more sensitive and selective to certain food additives or pesticide residues. In addition, by adjusting the distribution of quantum dots and combining data processing algorithms, simultaneous detection of multiple components can be achieved to improve detection efficiency and accuracy. In summary, targeted optimization of the production of quantum dot spectral sensors can indeed improve the detection accuracy of specific substances. This involves increasing the number of specific spectral quantum dots, adjusting their distribution, and other related optimization measures. These optimization measures can be customized and designed according to specific application requirements and the characteristics of the target substance.

[0028] See also Figure 1 The present embodiment provides a non-destructive rapid sorting device based on a quantum dot spectral sensor, including a device body, a control module, a shipping robot, a general detection channel, a dedicated detection channel and a sterilization channel.

[0029] The device body houses core components such as the consignment robot, general inspection channel, special inspection channel and sterilization channel, providing a spatial basis for the coordinated work of various components and ensuring that the entire inspection and sorting process can proceed in an orderly manner.

[0030] The control module can analyze and determine whether the product needs further secondary testing based on the product type and basic indicators obtained by the general testing channel, and then command the consignment robot to accurately transfer the corresponding product to the corresponding dedicated testing channel to achieve process control of graded testing. At the same time, it is responsible for accurately sorting and delivering the products that have completed all tests or ratings to external robot equipment through the consignment robot to ensure the automation and accuracy of the entire testing and sorting process.

[0031] The consignment robot has the ability to interact and dock with robotic equipment outside the device. It can receive products to be inspected from the outside and accurately consign the products to the corresponding general inspection channels, special inspection channels and other different locations in accordance with the established processes and instructions of the control module, complete the corresponding inspection, rating and other operations, and finally deliver the inspected products, realizing the efficient flow of inspection products between different links within the device.

[0032] The universal detection channel integrates universal quantum dot spectral sensors and image recognition equipment. The image recognition equipment can use image recognition technology to quickly and accurately identify the product type of the product to be tested, providing a basic classification basis for subsequent targeted testing and the overall sorting process. Universal quantum dot spectral sensors can test the basic indicators of the products to be tested, giving full play to their strong compatibility, and conducting preliminary and universal indicator tests on a variety of products in the early stage to obtain corresponding test data, providing a reference for subsequent judgment on whether the product needs further testing.

[0033] The dedicated detection channel is equipped with a dedicated quantum dot spectral sensor. For products that are judged to require secondary testing by the general detection channel, the dedicated sensor is used to perform more precise and detailed testing of the specific indicators of the products to be tested. Because it is a dedicated sensor, it can achieve higher precision and accuracy in the detection of specific indicators, which helps to improve the reliability of the entire test results and the accuracy of subsequent ratings.

[0034] The sterilization channel is used to ensure the hygiene of the testing environment and avoid cross-contamination. Before each consignment inspection by the consignment robot, it will be sterilized to ensure that the products to be inspected will not be contaminated by external pathogens due to the robot's transportation, thereby ensuring the validity of the test results and the quality and safety of the products.

[0035] This embodiment provides a non-destructive rapid sorting device based on quantum dot spectral sensors. First, the consignment robot obtains the products from the robot equipment outside the device body and consigns them to the general detection channel. In the general detection channel, the image recognition device identifies the product type, and the general quantum dot spectral sensor detects the basic indicators of the product, and then feeds this information back to the control module. The control module determines whether the product needs secondary detection based on the product type and basic indicators. If necessary, it instructs the consignment robot to transfer the product to a dedicated detection channel and use a dedicated quantum dot spectral sensor to detect and rate specific indicators. Finally, the control module uses the consignment robot to sort and deliver the products that have passed the final inspection or rating as inspected products to the external robot equipment. During the whole process, the sterilization channel will sterilize the consignment robot before each consignment to ensure the cleanliness of the detection environment.

[0036] The device provided in this embodiment is different from the traditional complex and food-destructive detection method. The device adopts a detection method based on quantum dot spectral sensors, which can complete the detection without destroying the product to be detected. It is more in line with the requirements for product integrity in modern industrial production, especially when used in food and other fields, it can avoid product loss caused by detection. At the same time, it combines the general detection channel and the special detection channel. The general channel uses the general quantum dot spectral sensor to take advantage of its strong compatibility to perform basic index detection on a variety of products. On this basis, for products that need further precise detection, the special sensor of the special detection channel is used to detect specific indicators. It takes into account the advantages of a wide detection range and high detection precision and accuracy on specific indicators, and effectively solves the problems of limited detection range of general spectral detection equipment and insufficient detection accuracy of specific indicators of general quantum dot spectral sensors.

[0037] In one embodiment, the universal detection channel includes: a detection module and a channel; The detection module is arranged above the detection channel; the consignment robot consigns the product to be inspected into the channel for inspection; the detection module includes a light source, a universal quantum dot spectral sensor and an image recognition device; the universal quantum dot spectral sensor is used to detect the basic indicators of the product to be inspected; the image recognition device includes a depth camera and an RGB camera, which are used to obtain the shape and appearance information of the product to be inspected so as to identify the product type of the product to be inspected; the light source is used to provide the illumination required for the universal quantum dot spectral sensor and the image recognition device to perform inspection.

[0038] See also Figure 2 , Figure 2The structure of a universal inspection channel designed based on this embodiment is shown. The main body of the channel is the larger rectangular area at the bottom of the figure, that is, the space where the product to be inspected passes through. The consignment robot will consign the product to be inspected to the channel for inspection. The inspection module is located above the channel and includes the following important components: Universal quantum dot spectral sensor: used to detect basic indicators of the product to be tested, such as nutritional indicators (water, fat, protein, etc.) and total bacterial count indicators, etc. It can perform compatible detection on most types of tested items (meat, vegetables, fruits, etc.), and integrates more types of quantum dots on the sensor chip per unit area, making it capable of more detection types, but the detection precision and accuracy of a specific indicator of a specific product is lower than that of a dedicated quantum dot spectral sensor.

[0039] Image recognition equipment: including depth cameras and RGB cameras. The depth camera can identify the size and height information of the sample being tested, and the RGB camera can identify the appearance. The two are used together to obtain the shape and appearance information of the product to be tested, so as to identify the product type of the product to be tested, and provide a basic classification basis for subsequent targeted testing and the overall sorting process.

[0040] Light source: including general light source and light source, which is used to provide the illumination required for the general quantum dot spectrum sensor and image recognition equipment to perform detection, ensuring the normal implementation of detection and recognition work.

[0041] The workflow of the universal inspection channel is: when the consignment robot carries the inspection sample into the universal inspection channel, the system will call the RGB camera to detect the product type information, the depth camera to detect its size information, and the universal quantum dot spectrum sensor to detect the basic nutritional information and total colony count information of the tested sample. After the inspection is completed, the system will determine whether the tested product needs to be retested based on this information. For example, if the image recognition detects that it is an ordinary meat product type, basic testing is sufficient, that is, only the universal quantum dot spectrum sensor is used to detect its nutritional information and total colony count information. If the test is qualified, it will pass through the fast channel directly and be handed over to the external robot for transportation without the need for a second test; if the test is a high-end product, a secondary test will be carried out.

[0042] The universal detection channel plays an important role in preliminary detection and classification in the entire detection and sorting system, providing basic data and decision-making basis for subsequent further detection and sorting.

[0043] In one embodiment, a dedicated detection channel includes several detection channels for detecting different types of specific indicators, and each detection channel includes: a detection module, a detector fixing frame, a guide rail and a channel; the guide rail is vertically arranged on both sides of the channel; the detector fixing frame is horizontally arranged between the guide rails on both sides, and can move vertically in the channel along the guide rails; the consignment robot consigns the products to be inspected into the channel for inspection; the detection module includes a light source and a dedicated quantum dot spectrum sensor; the light source and the dedicated quantum dot spectrum sensor are both fixed on the detector fixing frame; the detector fixing frame and the guide rail are used to cooperate and adjust to the optimal height required for detection by the dedicated quantum dot spectrum sensor; the optimal height is determined according to the product type and the type of specific indicators detected by the dedicated quantum dot spectrum sensor; the dedicated quantum dot spectrum sensor is used to detect the specific indicators of the product to be inspected; the light source is used to provide the illumination required for the dedicated quantum dot spectrum sensor to perform detection.

[0044] Please refer again Figure 3 , Figure 3 The structure of a dedicated inspection channel designed based on this embodiment is shown. The main body of the channel is the larger rectangular area at the bottom of the figure, which is the space where the consignment robot consigns the product to be inspected for specific indicators. The inspection module is located above the channel and includes the following components: Dedicated quantum dot spectral sensor: used to detect specific indicators of the product to be tested, such as detailed indicators of nutritional components (specific type of protein, uniformity of fat distribution, whether it contains rare beneficial elements, etc.), colony type and quantity indicators, and residue indicators.

[0045] Dedicated light source: provides the required illumination for the dedicated quantum dot spectral sensor to conduct detection, ensuring that the sensor can accurately obtain the specific indicator data of the product to be detected.

[0046] Detector fixing frame: It is horizontally arranged between the guide rails on both sides and can be moved vertically in the channel along the guide rails. Its function is to fix the special quantum dot spectrum sensor and the special light source, and can be adjusted to the optimal height required for the special quantum dot spectrum sensor to detect according to the product type and the type of specific indicators detected by the special quantum dot spectrum sensor, in conjunction with the guide rail. Because the quantum dot spectrum sensor has an optimal detection distance for a certain sample, the height of the measured object detected by the depth camera can be used to calculate the height of the quantum dot spectrum sensor in the channel, thereby achieving accurate detection. Different specific indicator detections also have different requirements for the distance between the sensor and the product. For example, when detecting detailed indicators of nutritional ingredients, the sensor may need to maintain a certain distance from the surface of the product to accurately obtain relevant spectral information; when detecting colony type and quantity indicators, since the colonies may be distributed at different depths and positions of the product, the sensor may need to be at another suitable height to ensure that various colony information can be fully and accurately detected.

[0047] Guide rails: They are vertically arranged on both sides of the channel to provide tracks for the detector holder to move up and down, so that the detector holder can flexibly adjust its position to meet the detection requirements of different products.

[0048] The workflow of the dedicated detection channel is that after the product has been tested by the general detection channel, the system determines whether secondary testing is required based on the product type and basic indicators. If necessary, the consignment robot will consign the product to the corresponding dedicated detection channel. For example, for high-end products such as original cut steaks, if the general detection channel detects that the total colony count is in an extremely low range but requires rating (Grade A, B, C, etc.), it will enter the dedicated nutrient detection channel. At this time, the detector holder will adjust the dedicated quantum dot spectral sensor to the optimal height based on information such as the product height, and a dedicated light source will provide illumination. The dedicated quantum dot spectral sensor detects the precise proportion of protein, water, and fat, as well as specific indicators such as the type of specific protein (whether it is a polypeptide), the uniformity of fat distribution, and whether it contains rare beneficial elements (rich in selenium). The system calls the rating model of this product for judgment. For example, if the total colony count is detected to be excessive, or does not exceed the maximum limit but is higher than the optimal state, the sample needs to be sent to the colony type detection area. Similarly, by adjusting the position of the detector fixing bracket, the colony type quantum dot spectral sensor is used to detect a more accurate total colony count and specific colony type (such as Escherichia coli, Aspergillus flavus, etc.). If colonies that affect food safety are detected, the sample is unqualified, and the robot that has transported the sample needs to go through the enhanced sterilization channel for enhanced sterilization.

[0049] The dedicated detection channel provided in this embodiment is equipped with a dedicated quantum dot spectral sensor for different types of specific indicators, which complements the universal sensor of the general detection channel. Although the general detection channel can detect a variety of products and a variety of basic indicators, it is limited in the detection accuracy of specific indicators, while the dedicated detection channel can perform high-precision detection of specific indicators, such as detailed nutritional ingredients, specific bacterial colony types, etc., which meets the needs of complex component detection and food safety detection of products such as fresh meat, and solves the problems of insufficient detection accuracy of traditional large and comprehensive sensors and low detection efficiency of various traditional complex equipment. At the same time, through the cooperation of the detector fixing frame and the guide rail, the height of the dedicated quantum dot spectral sensor can be flexibly adjusted according to the product type and detection index, so that it is always at the optimal detection distance. This design fully considers the characteristics of the quantum dot spectral sensor, and guarantees the accuracy and reliability of the detection to the greatest extent. It is an optimization and innovation of the structural design of the detection equipment, and improves the adaptability and detection effect of the entire detection system.

[0050] In one embodiment, the basic indicators include nutritional component indicators and total colony count indicators, and the specific indicators include detailed nutritional component indicators, colony type and quantity indicators, and residue indicators.

[0051] In this embodiment, the nutritional component index covers some basic nutritional element information, such as water, fat, protein and other contents, which can preliminarily reflect the nutritional status of the product. The total bacterial count index is mainly used to measure the overall number of microorganisms in the product, which can reflect the hygiene and freshness of the product. If the total bacterial count exceeds the standard, it may mean that the product is contaminated or spoiled.

[0052] Compared with basic nutritional indicators, detailed indicators of nutrients are more detailed and in-depth, such as the specific type of protein (whether it is a peptide, etc.), the uniform distribution of fat, and whether it contains rare beneficial elements (such as selenium-rich, etc.). These detailed indicators are crucial for the rating of high-end products (such as original cut steaks, etc.) because they can more accurately reflect the quality and value of the product. They need to be tested by dedicated quantum dot spectral sensors in dedicated detection channels to meet higher precision detection requirements.

[0053] Colony type and quantity indicators include the type of colonies (such as Escherichia coli, Aspergillus flavus, etc.) and the number of each type of colonies.

[0054] Residue indicators include pesticide residues, veterinary drug residues, heavy metal residues, etc. These indicators are very critical for the safety assessment of food and other products.

[0055] In one embodiment, the interior of the device body is also provided with: a wireless charging channel; the wireless charging channel is provided with an entrance and multiple exits, and the sterilization channel is provided on the wireless charging channel, and the consignment robot interacts with different external robot devices through the entrance and exit; the wireless charging channel is also provided with a wireless charging module for wirelessly charging the consignment robot.

[0056] Please refer again Figure 1 The long horizontal strip area at the bottom of the figure is the wireless charging channel, which is equipped with one entrance and multiple exits. This design allows the shipping robot to easily enter and exit the channel and interact with different external robot devices to realize the input of products to be inspected and the output of inspected products. A wireless charging module is set in the wireless charging channel, such as the charging coil in the figure. The shipping robot is also equipped with a corresponding wireless charging coil. When the robot is docked above the charging area, the wireless charging function can be activated, using the principle similar to the wireless charging of mobile phones to replenish the robot with power, ensuring that it can continue to work without the need for complex wired connection charging, which improves the convenience and flexibility of the system.

[0057] In one embodiment, the sterilization channel includes: a general sterilization channel and an enhanced sterilization channel; the general sterilization channel and the enhanced sterilization channel are respectively used to sterilize the shipping robot after the delivered products when the total number of colonies of the products shipped by the shipping robot is normal or exceeds the standard.

[0058] Please refer again Figure 1 , sterilization channel 1 (normal sterilization channel) and sterilization channel 2 (enhanced sterilization channel) are designed in the figure. These two sterilization channels are used to sterilize the consignment robot after the delivered products when the total colony count of the products consigned by the consignment robot is normal or exceeds the standard. The sterilization channel is set on the wireless charging channel. This layout enables the consignment robot to pass through the sterilization channel for sterilization after completing the product delivery, whether it returns to the wireless charging channel for charging or waits for the next round of work in the channel, without the need for additional path planning, which improves the operation efficiency of the system.

[0059] Among them, when the total number of colonies of the products shipped by the shipping robot is normal, after the robot delivers the sample to the external robot at the exit, it will pass through the sterilization channel 1 (ordinary sterilization channel) and then enter the working waiting area or wireless charging channel when returning. This channel usually uses ultraviolet sterilization and other methods to effectively remove common pathogens and other pollutants on the surface of the robot, ensuring that the robot will not cause cross contamination when it subsequently transports other products, and maintain the basic hygiene standards within the system. If the total number of colonies of the products shipped by the shipping robot exceeds the standard, the robot needs to pass through the enhanced sterilization channel (sterilization channel 2) for enhanced sterilization. In addition to ultraviolet sterilization, this channel also adds ozone sterilization for more powerful sterilization. This is because after contacting products with excessive total colony counts, the robot surface may carry more harmful pathogens, and more thorough sterilization methods are needed to ensure its cleanliness, prevent the spread of pathogens to subsequent products, and maintain the sanitation and safety of the entire testing environment and the accuracy of the test results.

[0060] In one embodiment, the shipping robot includes: a robot body, a wireless charging module, a wireless communication module and a position detection module; the shipping robot is used to ship products through the robot body; it is also used to perform wireless charging in a wireless charging channel through the wireless charging module; it is also used to interact with different external robot devices through the wireless communication module; and it is also used to detect the real-time position through the position detection module.

[0061] See also Figure 4 , Figure 4The structure of a shipping robot designed based on this embodiment is shown. The structure presented as a whole in the figure is the shipping robot, which is the core physical carrier for realizing product shipping. It has the ability to carry and transport sample trays. It moves between different channels in the system through its own moving devices (such as wheels at the bottom, etc., not clearly shown in the figure), and completes the flow of products to be tested between general detection channels, special detection channels, sterilization channels, wireless charging channels, etc., as well as tasks such as delivering tested products to external robot equipment. The sample tray is located above the shipping robot and is used to place products to be tested or tested products to ensure that the products are stably placed during transportation and will not fall or shift, thereby ensuring the safety and accuracy of transportation. The wireless communication module is installed on the shipping robot for interactive communication with different external robot equipment. For example, when an external AGV with a robotic arm delivers the product, the shipping robot can communicate with the external robot through the wireless communication module and receive the instruction from the external robot to put the sample on the shipping robot (together with the tray); after the inspection is completed, the module can also be used to communicate with the external robot to inform it to receive information such as the inspected product, so as to achieve accurate docking and transmission of information inside and outside the system, and ensure the smooth connection of the entire inspection and sorting process. The position detection sensor is set on the shipping robot to detect the position of the robot in real time. In the entire inspection and sorting system, the shipping robot needs to accurately reach the corresponding position of each channel (such as the designated position at the entrance, the general inspection channel, the dedicated inspection channel, the sterilization channel, the wireless charging channel, etc.). The position detection sensor can feedback the robot's position information to the system control module in real time. The system accurately controls the robot's running trajectory and movement based on this information, ensuring that the shipping robot can accurately perform various tasks and avoid inspection or transportation errors caused by position deviation. The wireless charging port of the dedicated shipping robot is located at the bottom of the shipping robot or other suitable position, corresponding to the wireless charging port of the charging channel. When the consignment robot enters the wireless charging channel and docks above the charging area, the wireless charging port of the dedicated consignment robot is aligned with the wireless charging port of the charging channel, and the wireless charging function is activated. The robot is replenished with power using principles similar to mobile phone wireless charging, ensuring that the robot has enough power to continue working. There is no need for complicated wired connection charging, which improves the convenience and flexibility of the system.

[0062] Please refer again Figure 1 In one embodiment, it also includes: a fast channel; the fast channel is used for the external robot equipment to which the shipping robot delivers products that do not require secondary inspection.

[0063] In one embodiment, whether a product that has been tested through a universal detection channel needs to undergo secondary testing is determined based on product type and basic indicators, including: for products that have been tested through a universal detection channel, if the product is determined to be a product that requires rating based on product type and the total number of colonies in the basic indicators meets the requirements, then the corresponding product is determined to be a product that needs to undergo secondary testing.

[0064] The embodiment of the present invention further provides a lossless and rapid sorting method based on a quantum dot spectral sensor, which is implemented based on the lossless and rapid sorting device based on a quantum dot spectral sensor as in the above embodiment, and includes the following steps: 1) Responding to the products to be inspected transported by the robot equipment outside the device body.

[0065] The device needs to monitor the dynamics of external robotic equipment in real time in order to respond promptly and initiate subsequent sorting processes.

[0066] 2) Assign a shipping robot to interact with the robotic equipment to obtain the products to be inspected.

[0067] The system assigns the appropriate shipping robot to interact with the external robot equipment according to the preset rules or algorithms. The shipping robot has the ability to communicate and interact with the external equipment, and can accurately obtain the products to be inspected (along with the pallet) from the external robot equipment.

[0068] 3) Use a shipping robot to ship the products to be tested to the general testing channel for testing to obtain the product type and basic indicators of the products to be tested.

[0069] The system assigns the appropriate shipping robot to interact with the external robot equipment according to the preset rules or algorithms. The shipping robot has the ability to communicate and interact with the external equipment, and can accurately obtain the products to be inspected (along with the pallet) from the external robot equipment.

[0070] 4) Determine whether the product requires secondary testing based on product type and basic indicators.

[0071] Based on the product type and basic indicator information obtained by the general detection channel, the system uses the preset judgment logic and standards to determine whether the product needs to undergo a more in-depth secondary test. For example, for some high-end products (such as original cut steak), even if the total colony count is within the normal range, it may be necessary to further test the detailed indicators of its nutritional components for rating; while for some ordinary products, if the basic test is qualified and no detailed testing of specific indicators is required, secondary testing may not be required.

[0072] 5) If yes, the products that need secondary inspection will be transported to the corresponding dedicated inspection channel for inspection and grading by the consignment robot.

[0073] If the judgment result is that secondary testing is required, the shipping robot will transport the product to the corresponding dedicated testing channel according to the system's instructions. The dedicated testing channel is equipped with dedicated quantum dot spectral sensors for different specific indicators, such as detailed indicator testing channels for nutrients, colony type and quantity indicator testing channels, etc. In the dedicated testing channel, the detector holder can be adjusted along the guide rail to the optimal height required for the dedicated quantum dot spectral sensor to detect according to the requirements of the product type and test indicators. The dedicated light source provides the sensor with the required light for detection, thereby achieving high-precision detection and rating of specific indicators.

[0074] 6) The products that have undergone final inspection or grading are treated as inspected products and delivered to the corresponding external robot equipment via the shipping robot.

[0075] After completing all inspection and grading processes, the product is identified as an inspected product. The shipping robot plays a role again and accurately delivers the inspected product to the corresponding external robotic equipment. This process may require the shipping robot to communicate and coordinate with the external robotic equipment to ensure that the product can be correctly received and processed.

[0076] 7) Order the consignment robot to enter the sterilization channel for sterilization and disinfection, and then enter the waiting area to wait for the next round of work.

[0077] After completing product delivery, the shipping robot enters different sterilization channels for sterilization and disinfection according to the conditions of the shipped products (such as whether it has shipped products with excessive total bacterial counts). The sterilization channels include ordinary sterilization channels (ultraviolet sterilization) and enhanced sterilization channels (ultraviolet sterilization plus ozone sterilization). After sterilization is completed, the shipping robot enters the waiting area and waits for the next round of work instructions.

[0078] The method provided in this embodiment realizes nondestructive testing based on the detection method of quantum dot spectral sensor, avoiding the damage of traditional detection methods to products. At the same time, through the cooperation of general detection channels and special detection channels, as well as the efficient transportation of consignment robots, the efficiency of detection and sorting is greatly improved, meeting the needs of modern industrial production for rapid and nondestructive testing. At the same time, through the separate detection of basic indicators and specific indicators, as well as accurate judgment and classification based on product types and test results, it can provide accurate quality assessment and classification for different types of products, which is of great significance for quality control and value assessment of high-end products, and helps to improve the added value and market competitiveness of products.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A non-destructive rapid sorting device based on quantum dot spectral sensor, characterized in that: include: The device body, control module, shipping robot, general detection channel, special detection channel and sterilization channel; The shipping robot, the universal detection channel, the dedicated detection channel and the sterilization channel are all arranged inside the device body; The shipping robot is used to interact with the robot equipment outside the device body to obtain the products to be tested and ship them to the corresponding channel to complete the test or deliver the tested products; The sterilization channel is used to sterilize the consignment robot before each consignment inspection of the consignment robot; The universal detection channel is configured with a universal quantum dot spectrum sensor and an image recognition device, which are used to respectively identify the product type of the product to be detected by the image recognition device and to detect basic indicators of the product to be detected by the universal quantum dot spectrum sensor; The dedicated detection channel is equipped with a dedicated quantum dot spectrum sensor, which is used to detect specific indicators of the product to be detected through the dedicated quantum dot spectrum sensor; The control module is used to determine whether the products that have been inspected by the general inspection channel need to undergo secondary inspection based on the product type and the basic indicators, and to consign the products that need secondary inspection to the corresponding dedicated inspection channel for inspection and grading through the consignment robot; and is also used to sort and deliver the products that have undergone final inspection or grading as the inspected products to external robot equipment through the consignment robot.

2. The non-destructive rapid sorting device based on quantum dot spectral sensor according to claim 1 is characterized in that: The universal detection channel includes: a detection module and a channel; The detection module is arranged above the detection channel; the consignment robot consigns the product to be detected to the channel for detection; The detection module includes a light source, the universal quantum dot spectrum sensor and the image recognition device; The universal quantum dot spectrum sensor is used to detect the basic index of the product to be detected; The image recognition device includes a depth camera and an RGB camera, which are used to obtain the shape and appearance information of the product to be detected to identify the product type of the product to be detected; The light source is used to provide the illumination required by the universal quantum dot spectrum sensor and the image recognition device for detection.

3. The non-destructive rapid sorting device based on quantum dot spectral sensor according to claim 1 is characterized in that: The dedicated detection channel includes a plurality of detection channels for detecting different types of the specific indicators, and each of the detection channels includes: a detection module, a detector fixing frame, a guide rail and a channel; The guide rails are vertically arranged on both sides of the channel; The detector fixing frame is disposed transversely between the guide rails on both sides and can move vertically in the channel along the guide rails; The transport robot transports the product to be inspected into the channel for inspection; The detection module includes a light source and a dedicated quantum dot spectrum sensor; The light source and the dedicated quantum dot spectrum sensor are both fixed on the detector fixing frame; the detector fixing frame and the guide rail are used to cooperate and adjust to the optimal height required for detection by the dedicated quantum dot spectrum sensor; the optimal height is determined according to the product type and the type of the specific indicator detected by the dedicated quantum dot spectrum sensor; The dedicated quantum dot spectrum sensor is used to detect the specific index of the product to be detected; The light source is used to provide the illumination required by the dedicated quantum dot spectrum sensor for detection.

4. The non-destructive rapid sorting device based on quantum dot spectral sensor according to claim 1 is characterized in that: The basic indicators include nutritional component indicators and total colony count indicators, and the specific indicators include detailed nutritional component indicators, colony type and quantity indicators, and residue indicators.

5. The non-destructive rapid sorting device based on quantum dot spectral sensor according to claim 1 is characterized in that: The device body is also provided with: a wireless charging channel; The wireless charging channel is provided with an entrance and a plurality of exits, and the sterilization channel is provided on the wireless charging channel, and the shipping robot interacts with different external robot devices through the entrance and the exit; The wireless charging channel is also provided with a wireless charging module for wirelessly charging the shipping robot.

6. The non-destructive rapid sorting device based on quantum dot spectral sensor according to claim 4 is characterized in that: The sterilization channel includes: a common sterilization channel and an enhanced sterilization channel; The ordinary sterilization channel and the enhanced sterilization channel are respectively used to sterilize the shipping robot after the delivered products when the total colony count of the products shipped by the shipping robot is normal or exceeds the standard.

7. The non-destructive rapid sorting device based on quantum dot spectrum sensor according to claim 5 is characterized in that: The shipping robot comprises: a robot body, a wireless charging module, a wireless communication module and a position detection module; The shipping robot is used to ship products through the robot body; it is also used to perform wireless charging in the wireless charging channel through the wireless charging module; it is also used to interact with different external robot devices through the wireless communication module; and it is also used to detect the real-time position through the position detection module.

8. The non-destructive rapid sorting device based on quantum dot spectral sensor according to claim 1 is characterized in that: Also includes: Fast Track; The fast track is used by the shipping robot to deliver products to external robotic equipment that do not require secondary inspection.

9. The non-destructive rapid sorting device based on quantum dot spectral sensor according to claim 1, characterized in that: Determining whether the product tested by the universal testing channel needs to undergo secondary testing according to the product type and the basic index includes: For products tested through the universal detection channel, if the product is judged to be a product that requires rating based on the product type and the total colony count in the basic indicators meets the requirements, the corresponding product is judged to be a product that requires secondary testing.

10. A non-destructive and rapid sorting method based on quantum dot spectral sensor, characterized in that: The non-destructive rapid sorting device based on the quantum dot spectral sensor according to any one of claims 1 to 9 is implemented, comprising the following steps: responding to products to be inspected delivered by a robotic device external to the apparatus body; Assigning a shipping robot to interact with the robot device to obtain the product to be inspected; Consigning the product to be inspected to the universal inspection channel for inspection by the consignment robot to obtain the product type and basic indicators of the product to be inspected; Determine whether the product needs secondary testing based on the product type and the basic indicators; If so, the products requiring secondary inspection are shipped to the corresponding dedicated inspection channel for inspection and grading by the shipping robot; The products that have been finally inspected or graded are regarded as inspected products and delivered to corresponding external robot equipment through the shipping robot; The shipping robot is ordered to enter the sterilization channel for sterilization and disinfection and then enter the waiting area to wait for the next round of work.

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