High-degree-of-freedom flexible assembly line for nutrient substance detection and detection method

Abstract

The invention discloses a high-degree-of-freedom flexible assembly line for nutrient substance detection and a detection method, and relates to the technical field of nutrient substance detection, and the device comprises a host, a plurality of detection instruments, a logistics line and a sample moving device. Stable communication connection is established between the host and a plurality of detection instruments capable of detecting different nutrient substances, the limitation that the number of traditional single host control instruments is limited is broken through, parallel detection of a plurality of detection instruments is achieved, multi-index and high-throughput detection efficiency is greatly improved, and the large-scale requirement of blood nutrition safety detection is met. The logistics line is ingeniously arranged below the detection instrument, the spatial layout of equipment is remarkably optimized, the problems that a traditional instrument is bloated in structure and large in occupied area are solved, the space utilization efficiency is improved, the sample conveying line and the kit conveying line are independently designed in a classified mode and matched with efficient screening of the recognition unit, flexible expansion of detection items is achieved, and the detection efficiency is improved. And errors caused by manual matching are avoided.

Description

Technical Field

[0001] This invention relates to the field of nutrient detection technology, and more specifically, to a highly flexible automated production line and detection method for nutrient detection. Background Technology

[0002] The accuracy of medical diagnosis is directly related to the evaluation of disease prevention and treatment effectiveness. Precise detection of nutrient content in human blood is crucial for health status analysis. As an important indicator reflecting the body's nutritional status, the results of blood nutrient component testing directly influence clinical decisions. Therefore, establishing an efficient and accurate blood nutrient testing system is particularly important. In this process, advanced and reliable testing equipment is a vital technological guarantee for achieving precision medicine.

[0003] Currently, most clinically used blood nutrient testing equipment employs a centralized architecture where a single host controls a limited number of testing instruments. These devices typically feature bulky instruments, large footprints, and low space utilization efficiency and automation. Furthermore, the connections between instruments and the material flow are often rigid, lacking reconfigurability and making it difficult to flexibly adjust instrument configurations according to changes in testing tasks. A single instrument failure can easily trigger a cascading system shutdown, severely impacting the continuity and stability of the testing process. Simultaneously, limited by hardware structure and system compatibility, these devices have limited scalability, typically only capable of testing a few nutrient elements, making it difficult to meet the demands of modern multi-indicator, high-throughput testing. Summary of the Invention

[0004] This invention provides a highly flexible production line for nutrient detection, which can solve the problems of bulky structure, large footprint, low space utilization efficiency and low degree of automation of existing detection instruments.

[0005] A highly flexible automated production line for nutrient detection includes a main unit, multiple detection instruments, a material flow line, and a sample transfer device. The multiple detection instruments are communicatively connected to the main unit. The material flow line is located below the detection instruments. The material flow line includes a sample transport line and a reagent kit transport line. The sample transport line is equipped with a first identification unit for transporting and identifying sample tubes. The reagent kit transport line has a second identification unit for transporting and identifying disposable reagent kits. The sample transfer device is located at the junction of the sample transport line and the reagent kit transport line, and is used to transfer samples from the sample tubes to the disposable reagent kits.

[0006] The present invention provides a highly flexible automated production line for nutrient detection, which, compared with the prior art, has, but is not limited to, the following beneficial effects: This highly flexible automated testing line for nutrient testing establishes a stable communication connection between the main unit and multiple testing instruments capable of detecting different nutrients. It breaks the limitations of traditional single-unit control systems that restrict the number of instruments, enabling parallel testing by multiple instruments and significantly improving the efficiency of multi-index, high-throughput testing. This meets the large-scale needs of blood nutrition safety testing. The cleverly designed logistics lines positioned below the testing instruments significantly optimize the equipment's spatial layout, solving the problems of bulky structures and large footprints in traditional instruments, thus improving space utilization efficiency. The separate design of sample and reagent delivery lines, coupled with efficient identification units, not only allows for flexible expansion of testing items but also avoids errors from manual matching. The sample transfer device enables automated and precise transfer of samples from sample tubes to disposable reagent kits, and the disposable kits prevent direct contact between samples and testing instruments, reducing the risk of cross-contamination and ensuring the reliability of test results.

[0007] Furthermore, each of the aforementioned testing instruments is equipped with a connecting plate at its bottom, and adjacent testing instruments are detachably connected via the connecting plate.

[0008] Furthermore, the reagent kit delivery line includes a main delivery line and multiple sub-delivery lines, with the output ends of the multiple sub-delivery lines connected to the main delivery line.

[0009] Furthermore, the main conveyor line includes multiple conveying components, and adjacent conveying components are detachably connected.

[0010] Furthermore, the disposable kit contains pre-filled dry powder or liquid reagents for detecting specific nutrients, as well as screen-printed electrodes for electrochemical detection.

[0011] Furthermore, the sample transfer device includes a sample transfer body and a disposable pipette tip installed at its drive end, the sample transfer body being disposed on one side of the sample transport line.

[0012] Furthermore, the first identification unit and the second identification unit are RFID readers, QR code scanners, or visual recognition systems.

[0013] Furthermore, each of the sub-conveyor line and main conveyor line is equipped with a second identification unit.

[0014] A flexible automated testing method includes: S1: Placing labeled sample tubes on a sample transport line; a first identification unit on the sample transport line reads the identification information of the sample tubes and sends the information to a host computer; S2: The host computer sends an instruction to the reagent kit transport line according to the test items of the sample, controls the release of the corresponding reagent kit, and reads its information through a second identification unit, binding the sample information and reagent kit information in the host computer; S3: A modular logistics line synchronously transports the bound sample tubes and reagent kits to a sample transfer station; S4: A sample transfer device picks up the liquid sample from the sample tube at the sample transfer station and adds it to the sample cavity of the corresponding reagent kit; S5: The reagent kit carrying the sample is transported to a designated testing instrument for sample pretreatment and nutrient detection; the testing instrument sends the generated detection signal to the host computer; S6: The host computer analyzes and processes the received detection signal to obtain the nutrient content result, and displays or outputs it.

[0015] Furthermore, the conveying process of the logistics line adopts segmented throttling control, and both the main conveying line and the sub-conveying lines on the logistics line have independent drive units. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a highly flexible automated production line for nutrient detection according to an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the logistics line structure; Figure 3 This is a flowchart of a detection method for a flexible production line according to the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Main unit; 2. Detection instrument; 3. Logistics line; 4. Sample tube; 5. Disposable reagent kit; 6. Transfer device; 7. Connecting plate; 31. Sample transport line; 32. Reagent kit transport line; 33. First identification unit; 34. Second identification unit; 321. Main transport line; 322. Sub-transport line; 3211. Transport assembly; 61. Transfer body; 62. Disposable pipette tip. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0023] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] See Figures 1-3 As shown in the figure, an embodiment of the present invention provides a highly flexible automated production line for nutrient detection, including a host 1, multiple detection instruments 2, a material flow line 3, and a sample transfer device 6; the multiple detection instruments 2 are communicatively connected to the host 1; the material flow line 3 is located below the detection instruments 2; the material flow line 3 includes a sample transport line 31 and a reagent kit transport line 32, the sample transport line 31 is provided with a first identification unit 33, and the sample transport line 31 is used to transport and identify sample tubes 4, the reagent kit transport line 32 has a second identification unit 34, and the reagent kit transport line 32 is used to transport and identify disposable reagent kits 5; the sample transfer device 6 is located at the junction of the sample transport line 31 and the reagent kit transport line 32, and is used to transfer samples from sample tubes 4 to disposable reagent kits 5.

[0025] In this embodiment, a stable communication connection is established between the host 1 and multiple detection instruments 2 that can be used to detect different nutrients. This breaks the limitation of the traditional single host controlling a limited number of instruments, enabling multiple detection instruments 2 to perform parallel detection. This significantly improves the efficiency of multi-index, high-throughput detection and meets the large-scale requirements of blood nutrition safety testing. The logistics line 3 is cleverly placed below the detection instruments 2, significantly optimizing the equipment space layout and solving the problems of bulky structure and large footprint of traditional instruments, thus improving space utilization efficiency. Through the independent design of sample delivery line 31 and reagent delivery line 32, combined with the accurate identification of sample tube 4 by the first identification unit 33, the efficient identification of disposable reagent kit 5 by the second identification unit 34, and the automatic binding of information between the two by the host 1, not only can the detection items be flexibly expanded, but the errors of manual matching are also avoided. The sample transfer device 6 is deployed at the junction of sample delivery line 31 and reagent delivery line 32 to realize the automated and accurate transfer of samples from sample tube 4 to disposable reagent kit 5. The disposable reagent kit 5 avoids direct contact between the sample and the detection instrument 2, reducing the risk of cross-contamination and ensuring the reliability of the test results.

[0026] Specifically, the host 1 is equipped with a central control system, a data processing module, and a communication module. The central control system is used to coordinate and control the operation of the entire production line. The communication module supports bidirectional data transmission with multiple testing instruments 2. Multiple testing instruments 2 can be used to detect different nutrients. The host 1 communicates with the testing instruments 2, the sample delivery line 32, the reagent kit delivery line 32, and the sample transfer device 6 through the communication module, forming a flexible testing system with a dynamically adjustable layout.

[0027] like Figure 1 and Figure 2 As shown, each of the multiple testing instruments 2 has a connecting plate 7 installed at its bottom, and adjacent testing instruments 2 are detachably connected through the connecting plate 7.

[0028] In this embodiment, the number of testing instruments 2 can be quickly increased or decreased by connecting plate 7, which greatly improves the flexibility of instrument configuration. It can adapt to different testing capacities according to the scale requirements of blood nutrition testing without replacing the entire equipment, solving the pain point of fixed and difficult-to-adjust configuration of traditional equipment. At the same time, when a testing instrument 2 malfunctions, the connecting plate 7 at the bottom of the corresponding instrument can be directly removed, and the faulty instrument can be taken out for repair or replacement without stopping the entire testing system. This effectively avoids the system chain shutdown caused by the failure of a single instrument in the traditional fixed connection mode, ensuring the continuity of the testing process.

[0029] Specifically, the connecting plate 7 not only ensures the stability of the adjacent testing instruments 2 after connection, but also allows for flexible adjustment of the arrangement of the testing instruments 2 according to the laboratory space layout or the extension direction of the logistics line 3, improving space utilization efficiency. At the same time, it facilitates precise docking with the logistics line 3 below, ensuring smooth transfer of samples and reagent kits, and further enhancing the overall collaborative operation efficiency of the pipeline.

[0030] like Figure 1 and Figure 2 As shown, the reagent delivery line 32 includes a main delivery line 321 and multiple sub-delivery lines 322, with the output ends of the multiple sub-delivery lines 322 connected to the main delivery line 321.

[0031] In this embodiment, multiple sub-conveyor lines 322 can store disposable reagent kits 5 adapted to different nutrient detection items (such as dedicated reagent kits for protein, vitamin, mineral, etc.). The host 1 can directly instruct the corresponding sub-conveyor line 322 to release the target reagent kit according to the sample detection requirements. The detection items can be expanded without modifying the entire conveyor line, solving the pain point of the limited detection items that can be adapted to by the traditional single conveyor line. At the same time, the storage and pre-delivery of different types of reagent kits can be completed in parallel through multiple sub-conveyor lines 322, avoiding the sorting congestion caused by the mixed types of reagent kits on a single conveyor line. Combined with the summary transfer of the main conveyor line 321, the rapid supply of reagent kits in multi-item detection scenarios can be realized, improving the overall continuity of the detection process.

[0032] Specifically, the number of sub-transfer lines 322 can be flexibly increased or the installation position of sub-transfer lines 322 can be adjusted according to the growth needs of testing business, without changing the core structure of the main transfer line 321, reducing equipment expansion costs. At the same time, the connection design between sub-transfer lines 322 and main transfer lines 321 ensures smooth reagent kit transfer path and forms efficient collaboration with sample transfer line 31 and sample transfer device 6, further ensuring synchronous docking efficiency.

[0033] like Figure 1 and Figure 2 As shown, the main conveyor line 321 includes multiple conveyor components 3211, and adjacent conveyor components 3211 are detachably connected.

[0034] In this embodiment, the overall length of the main conveyor line 321 can be freely adjusted by increasing or decreasing the number of conveyor components 3211 according to the number of testing instruments 2, the size of the laboratory space, or the transport path requirements of the reagent kit 5. This allows for both space-saving by reducing the length in small-scale testing scenarios and extending the length to accommodate the docking requirements of multiple instruments in large-scale, high-throughput testing. This solves the pain point of traditional integrated main conveyor lines having a fixed length and being unable to flexibly adapt to different layouts. At the same time, when a certain conveyor component 3211 experiences jamming, wear, or other malfunctions, the malfunctioning component 3211 can be directly disassembled for individual repair or replacement without stopping the entire main conveyor line 321. It also does not affect the transport connection between the sub-conveyor line 322 and other normal components of the main conveyor line 321, ensuring the continuity of reagent kit 5 supply and avoiding the complete process shutdown caused by the failure of traditional integrated conveyor lines.

[0035] Specifically, when it is necessary to add new testing items, increase the number of sub-conveyor lines 322, or adjust the overall layout of logistics line 3 in the later stage, only the corresponding conveyor components 3211 need to be added, removed, or adjusted in a targeted manner, without replacing the entire main conveyor line 321. This reduces the material input and construction cycle required for the transformation. At the same time, the detachable structure facilitates the individual storage, transportation, and reuse of components, reducing the long-term operation and maintenance costs of the equipment.

[0036] like Figure 1 and Figure 2 As shown, the disposable kit 5 contains pre-filled dry powder or liquid reagents for detecting specific nutrients, as well as screen-printed electrodes for electrochemical detection.

[0037] In this embodiment, by customizing pre-prepared dry powder or liquid reagents for different nutrients (such as vitamins, minerals, proteins, etc.), manual on-site preparation is eliminated, avoiding detection deviations caused by reagent ratio errors and saving tedious reagent preparation steps. At the same time, standardized pre-prepared reagents ensure consistent detection conditions for different batches, improving result repeatability. The built-in screen-printed electrodes are directly adapted to the electrochemical detection process, eliminating the need for additional independent electrode components. This reduces the complexity of the detection instrument components and avoids the cumbersome process of electrode installation and calibration. Furthermore, screen-printed electrodes have the advantages of fast response and low cost, and can quickly convert detection signals into electrical signals, improving detection efficiency.

[0038] like Figure 1 and Figure 2 As shown, the sample transfer device 6 includes a sample transfer body 61 and a disposable suction tip 62 installed at its drive end. The sample transfer body 61 is located on one side of the sample transport line 31.

[0039] In this embodiment, the disposable pipette tip 62 is designed for single use and can be discarded after each sample transfer, avoiding contamination between different samples caused by incomplete cleaning of traditional reusable pipette tips. Combined with its detachable installation method with the drive end of the transfer body 61, it ensures that a clean pipette tip is used for each transfer, guaranteeing the accuracy of the test results. The transfer body 61 is located on one side of the sample transport line 31, allowing for close contact with the sample tube 4. With the precise drive control of the drive end, it can quickly locate the sampling position of the sample tube 4 and the sample addition position of the reagent kit 5, reducing the transfer path distance and positioning error. At the same time, it is compatible with the layout of the merging station of the sample transport line 31 and the reagent kit transport line 32, realizing rapid and accurate sample transfer and improving the overall process continuity.

[0040] Specifically, the sample transfer body 61 is equipped with a robotic arm that can move the disposable pipette tip 62 in all directions. The detachable connection structure between the robotic arm and the disposable pipette tip 62 facilitates the quick replacement and replenishment of the pipette tip without complicated installation and debugging, further improving the ease of operation and stability of the sample transfer process.

[0041] like Figure 1 and Figure 2 As shown, the first identification unit 33 and the second identification unit 34 are RFID readers, QR code scanners or visual recognition systems.

[0042] In this embodiment, the corresponding identification device can be flexibly selected according to the identification type of sample tube 4 and disposable reagent kit 5, the detection environment and cost budget. The FID reader supports non-contact long-distance fast identification, the QR code scanner takes into account low cost and high accuracy, and the visual recognition system is adapted to scenarios without explicit markings, solving the pain point of insufficient adaptability of traditional single identification methods and ensuring that sample and reagent kit information is read without omission.

[0043] like Figure 1 and Figure 2 As shown, each sub-conveyor line 322 and main conveyor line 321 is equipped with a second identification unit 34.

[0044] In this embodiment, the second identification unit 34 on the sub-conveyor line 322 can first perform an initial information check on the stored disposable reagent kit 5 to confirm that its type, batch and test items match before releasing it to the main conveyor line 321. The second identification unit 34 on the main conveyor line 321 further performs a secondary check to avoid information misreading or mismatch problems that may occur at a single identification node, ensuring that the reagent kit 5 bound to the sample tube 4 is accurate and error-free, and ensuring the accuracy of the testing process from the source.

[0045] Specifically, throughout the entire process of the reagent kit 5 being output from the sub-transfer line 322 and transferred to the sample transfer station via the main transfer line 321, the second identification unit 34 of each node collects its position and status information in real time and feeds it back to the host 1. The host can dynamically monitor the transfer progress, promptly detect abnormal situations such as reagent kit delays or jams, and issue early warnings to avoid sample waiting due to transfer disconnection and ensure the efficiency of synchronous docking.

[0046] A flexible automated testing method includes: S1: Placing a labeled sample tube 4 on a sample transport line 31, where a first identification unit 33 on the sample transport line 31 reads the identification information of the sample tube 4 and sends the information to a host computer 1; S2: The host computer 1 sends an instruction to a reagent kit transport line 32 according to the test items of the sample, controlling the release of the corresponding reagent kit 5, and reads its information through a second identification unit 34, binding the sample information and reagent kit information in the host computer 1; S3: The transport line 3 synchronously transports the bound sample tube 4 and reagent kit 5 to a sample transfer station; S4: A sample transfer device 6 picks up the liquid sample from the sample tube 4 at the sample transfer station and adds it to the sample cavity of the corresponding reagent kit 5; S5: The reagent kit 5 carrying the sample is transported to a designated testing instrument 2 for sample pretreatment and nutrient detection, and the testing instrument 2 sends the generated detection signal to the host computer 1; S6: The host computer 1 analyzes and processes the received detection signal to obtain the nutrient content result, and displays or outputs it.

[0047] In this embodiment, the first identification unit 33 reads the identifier of the sample tube 4, and the host 1 instructs the reagent delivery line 32 to release the corresponding disposable reagent kit 5 and complete the information binding. The entire process requires no manual intervention, avoiding mismatch errors caused by manual screening and matching, significantly shortening preparation time, and improving the accuracy and efficiency of the detection process. The modular logistics line 3 enables the synchronous delivery of the bound sample tube 4 and reagent kit 5, ensuring their precise arrival at the transfer station. Combined with the automated transfer device 6, the identification, binding, transfer, and transfer steps are seamlessly connected, avoiding waiting time caused by process disconnections. Simultaneously, multiple detection instruments 2 can process different samples in parallel, breaking through the efficiency bottleneck of traditional single-instrument serial detection and meeting high-throughput detection requirements. The transfer device 6... Samples are transferred via disposable pipette tip 62, with the sample only coming into contact with the reagents and electrodes inside the disposable reagent kit 5. Combined with the automated design of the testing process, this reduces the risk of contamination from manual contact and ensures the reliability of the test results. The testing instrument 2 transmits signals to the host unit 1, which centrally processes the data and outputs the results. Throughout the process, sample information, reagent kit information, and test data are linked one-to-one and stored in real time, facilitating quality verification and problem tracing, while also enhancing ease of use through multiple output methods. The instruction scheduling of the host unit 1, the modular transport of the logistics line 3, and the parallel operation of the testing instrument 2 can flexibly adapt to different sample volumes and testing requirements, satisfying both small-batch sampling and large-scale surveys, thus addressing the pain points of poor adaptability and rigid processes in traditional testing methods.

[0048] In step S3, the conveying process of logistics line 3 adopts segmented throttling control, and the main conveying line 321 and the sub-conveyor line 322 on logistics line 3 each have independent drive units.

[0049] In this embodiment, by using independent drive units for each segment in conjunction with throttling control, the operating status can be flexibly adjusted according to actual transport needs. When a certain sub-transfer line 322 has no corresponding reagent kit 5 supplied, or a certain section of the main transfer line 321 has no transport task, that segment can automatically stop, avoiding energy waste caused by the continuous operation of the traditional integrated logistics line and reducing long-term operating costs. The sub-transfer line 322 can independently adjust the transport speed according to the instructions of the host 1 and the release requirements of the reagent kit 5. The main transfer line 321 can match the sample transport rhythm of the sample transfer line 31 with the transfer efficiency of the transfer device 6, ensuring that the bound sample tube 4 and reagent kit 5 arrive at the transfer station synchronously, avoiding congestion or waiting time due to speed mismatch, and improving collaborative efficiency.

[0050] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A highly flexible automated production line for nutrient detection, characterized in that, include: Host (1); Multiple testing instruments (2), and the multiple testing instruments (2) are communicatively connected to the host (1); Logistics line (3), wherein the logistics line (3) is located below the detection instrument (2); The logistics line (3) includes a sample transport line (31) and a reagent kit transport line (32). The sample transport line (31) is provided with a first identification unit (33) and is used to transport and identify sample tubes (4). The reagent kit transport line (32) has a second identification unit (34) and is used to transport and identify disposable reagent kits (5). A sample transfer device (6) is provided at the junction of the sample delivery line (31) and the reagent delivery line (32) to transfer the sample from the sample tube (4) to the disposable reagent kit (5).

2. The high-degree-of-freedom flexible production line for nutrient detection as described in claim 1, characterized in that, Each of the aforementioned testing instruments (2) has a connecting plate (7) installed at its bottom, and adjacent testing instruments (2) are detachably connected via the connecting plate (7).

3. The high-degree-of-freedom flexible production line for nutrient detection as described in claim 1, characterized in that, The reagent delivery line (32) includes a main delivery line (321) and multiple sub-delivery lines (322), the output ends of the multiple sub-delivery lines (322) being connected to the main delivery line (321).

4. The high-degree-of-freedom flexible production line for nutrient detection as described in claim 3, characterized in that, The main conveyor line (321) includes multiple conveyor components (3211), and adjacent conveyor components (3211) are detachably connected.

5. The high-degree-of-freedom flexible production line for nutrient detection as described in claim 1, characterized in that, The disposable reagent kit (5) is pre-filled with dry powder or liquid reagents for detecting specific nutrients and screen-printed electrodes for electrochemical detection.

6. The high-degree-of-freedom flexible production line for nutrient detection as described in claim 1, characterized in that, The sample transfer device (6) includes a sample transfer body (61) and a disposable suction tip (62) installed at its drive end. The sample transfer body (61) is located on one side of the sample transport line (31).

7. The high-degree-of-freedom flexible production line for nutrient detection as described in claim 1, characterized in that, The first identification unit (33) and the second identification unit (34) are RFID readers, QR code scanners or visual recognition systems.

8. The high-degree-of-freedom flexible production line for nutrient detection as described in claim 3, characterized in that, Each of the sub-conveyor line (322) and main conveyor line (321) is provided with a second identification unit (34).

9. A detection method for a flexible automated production line, using the high-degree-of-freedom flexible automated production line for nutrient detection as described in any one of claims 1-8, characterized in that, include: S1: Place the labeled sample tube (4) on the sample conveying line (31). The first identification unit (33) on the sample conveying line (31) reads the identification information of the sample tube (4) and sends the information to the host (1). S2: The host (1) sends an instruction to the reagent delivery line (32) according to the test items of the sample, controls the release of the corresponding reagent kit (5), and reads its information through the second identification unit (34) to bind the sample information and reagent kit information in the host (1); S3, the logistics line (3) synchronously transports the bound sample tubes (4) and reagent kits (5) to the sample transfer station; S4. The transfer device (6) draws the liquid sample from the sample tube (4) at the transfer station and adds it to the sample chamber of the corresponding reagent kit (5); S5. The reagent kit (5) containing the sample is transported to the designated detection instrument (2) for sample pretreatment and nutrient detection. The detection instrument (2) sends the generated detection signal to the host (1). S6. The host (1) analyzes and processes the received detection signal to obtain the nutrient content result, and displays or outputs it.

10. The detection method for a flexible production line as described in claim 9, characterized in that, In step S3, the conveying process of the logistics line (3) adopts segmented throttling control, and the main conveying line (321) and the sub-conveying line (322) on the logistics line (3) each have independent drive units.

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