Intelligent sampling analysis system and method thereof

Abstract

According to the intelligent sampling analysis system and method, the annular conveying belt, the working table, the pressing plate assembly and the sample shifting device are integrated, full-automatic circulation of the test bottles from the external working table to all internal functional areas is achieved, traditional manual feeding and discharging operation is replaced, and the working efficiency is improved. Therefore, the labor intensity can be greatly reduced, human errors and sample pollution risks are avoided, the analysis efficiency can be improved, and the large-scale continuous monitoring requirement is met; meanwhile, a test bottle tray with a weighing module and a robot manipulator carrying a code scanner are configured, so that an accurate and stable test bottle identification and in-place management mechanism is constructed, and full-process automatic and intelligent closed-loop management from sample injection, analysis, temporary storage to sample discharge is realized on the whole; and the reliability, continuity and operation efficiency of the intelligent sampling analysis system are greatly improved.

Description

Intelligent Sampling and Analysis System and Method Technical Field

[0001] This application relates to the technical field of wastewater sampling and analysis, and in particular to an intelligent sampling and analysis system and method thereof. Background Technology

[0002] In the fields of environmental monitoring and water treatment, rapid and accurate compositional analysis of wastewater samples is crucial. Currently, the wastewater sampling and analysis process has been automated to some extent. For example, robotic arms or conveyor belts are used to deliver test bottles containing wastewater samples into analytical instruments for testing, replacing some manual operations, improving efficiency, and reducing human error.

[0003] Currently, existing automated analysis systems still have significant shortcomings in the sample bottle handling and scheduling process. Specifically, the loading and unloading of sample bottles onto the analyzer typically still requires manual intervention: operators must manually place each sample bottle to be tested into the analyzer's inlet, and after analysis, manually remove the tested bottles from the outlet and collect them onto designated sample bottle trays. Furthermore, when a sample bottle tray is full, its replacement (removing the full tray and replacing it with an empty one) also relies on manual labor. This semi-automated mode is not only labor-intensive and inefficient, but also prone to introducing operational errors or sample contamination risks during frequent manual contact, making it difficult to meet the needs of large-scale, continuous monitoring. Summary of the Invention

[0004] In view of this, it is necessary to provide an intelligent sampling and analysis system and method that can solve the above-mentioned technical problems.

[0005] To solve the above-mentioned technical problems, this application provides the following technical solution: an intelligent sampling and analysis system, comprising: a sampling and analysis chamber enclosing a receiving cavity; an annular conveyor belt sequentially divided into a sample inlet area, a waiting area, a first sample outlet area, and a second sample outlet area along its conveying direction, wherein the waiting area and the first sample outlet area are located inside the receiving cavity, and the sample inlet area and the second sample outlet area are located outside the sampling and analysis chamber; a workbench disposed on the side of the annular conveyor belt away from the sampling and analysis chamber, and communicating with the sample inlet area and the second sample outlet area respectively; the workbench is provided with a pressure plate assembly and a sample dispenser, the pressure plate assembly being disposed corresponding to the sample inlet area. The sample pusher is used to push the test bottles on the workbench into the sample inlet area of ​​the annular conveyor belt. The sample pusher is set corresponding to the second sample outlet area and is used to guide the test bottles in the second sample outlet area back to the workbench. Multiple analytical instruments are set in the accommodating cavity. A test bottle tray is set in the accommodating cavity. The test bottle tray is divided into a main sample area and a reserve sample area. The test bottle tray has multiple bottle slots arranged in sequence at intervals at the positions of the main sample area and the reserve sample area. Each bottle slot is used to hold a test bottle. A robot is set in the accommodating cavity. The robot includes a manipulator. The manipulator is equipped with a barcode scanner. The barcode scanner is used to scan and identify the test bottles grasped and conveyed by the manipulator.

[0006] In one embodiment, each of the bottle slots is equipped with a weighing module at its bottom, which is used to carry the test bottles and weigh them; and the test bottle tray places a movable bottle frame in each bottle slot in the main sample area, and the test bottle tray also places movable bottle frames in some bottle slots in the reserve sample area; wherein, the movable bottle frame has a clearance hole at its bottom, which allows the corresponding weighing module to pass through and enter; and the robot can also transfer the movable bottle frame between the main sample area and the reserve sample area by means of the robotic arm.

[0007] In one embodiment, the intelligent sampling and analysis system further includes a robot track on which the robot is mounted; wherein multiple analytical instruments are located between the annular conveyor belt and the test bottle tray, and are arranged on two symmetrical sides of the robot track.

[0008] In one embodiment, the intelligent sampling and analysis system further includes a guide frame located in the area where the waiting area is located; wherein, one end of the guide frame is formed with a flared opening for guiding the test bottles into the guide frame in sequence; and the other opposite end of the guide frame is set to be closed.

[0009] In one embodiment, the annular conveyor belt is provided with a baffle, which is located on the side of the sample inlet area facing the sample waiting area, and the baffle can abut against and limit the test bottle pushed and conveyed by the pressure plate assembly.

[0010] In one embodiment, the pressure plate assembly includes a pressure plate and a spring-loaded pressure plate, the spring-loaded pressure plate being disposed outside the pressure plate and abutting against the pressure plate in a pre-deformed manner; wherein, the pressure plate is capable of driving the test bottle on the workbench into the sample feeding area of ​​the annular conveyor belt under the pushing of the spring-loaded pressure plate.

[0011] In one embodiment, the workbench is divided into multiple recovery zones, which are distributed sequentially at intervals along the conveying direction of the annular conveyor belt within the second sample output zone. A sample feeder is provided at each position where the recovery zone connects to the second sample output zone. The number of recovery zones is equal to the number of analytical instruments.

[0012] This application also provides a sampling and analysis method applied to the aforementioned intelligent sampling and analysis system; the sampling and analysis method includes: controlling the operation of a circular conveyor belt to transport test bottles from the sample inlet area to the waiting area; controlling the operation of a robot to transport test bottles from the waiting area to the main sample area of ​​the test bottle tray via a robotic arm; controlling the operation of a robot to sequentially transport test bottles from the main sample area of ​​the test bottle tray to one of the analytical instruments via a robotic arm; controlling the operation of the analytical instrument to complete the sampling and analysis of wastewater samples in the test bottles; controlling the operation of a robot to transport the test bottles that have completed the sampling and analysis from the corresponding analytical instrument to the first sample outlet area of ​​the circular conveyor belt via a robotic arm; controlling the operation of the circular conveyor belt to transport the test bottles from the first sample outlet area to the second sample outlet area; and controlling the operation of a sample transfer device to guide the test bottles from the second sample outlet area back to the worktable.

[0013] Due to the application of the above-mentioned solution, this application has the following advantages compared with the prior art: The intelligent sampling and analysis system and method claimed in this application realizes the fully automatic circulation of test bottles from the external workbench to the internal functional areas by integrating a circular conveyor belt, a workbench, a pressure plate assembly and a sample feeder, and replaces the traditional manual loading and unloading operations. This can not only greatly reduce labor intensity and avoid human error and sample contamination risks, but also improve analysis efficiency and meet the needs of large-scale continuous monitoring. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is a schematic diagram of the intelligent sampling and analysis system provided in this application.

[0016] Figure 2 is a partial structural diagram of the robot picking up test bottles from the test bottle tray in this application.

[0017] Figure 3 is a flowchart of the sampling and analysis method provided in this application.

[0018] Reference numerals: 100, Intelligent sampling and analysis system; 10, Sampling and analysis chamber; 11, Receptacle cavity; 20, Circular conveyor belt; 210, Guide frame; 211, Trumpet mouth; 21, Sample inlet area; 22, Waiting area; 23, First sample outlet area; 24, Second sample outlet area; 25, Baffle; 30, Workbench; 31, Pressure plate assembly; 311, Pressure plate; 312, Spring pressure plate; 32, Sample dispenser; 321, Sample dispensing plate; 33, Arc plate; 34, Recovery area; 40, Analytical instrument; 50, Test bottle tray; 501, Main sample area; 502, Sample preparation area; 51, Bottle trough; 52, Weighing module; 53, Moving bottle frame; 531, Clearance hole; 60, Robot; 61, Robotic arm; 611, Barcode scanner; 70, Robot track; 200, Test bottle; 201, Bottle cap. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] 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 belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0023] As shown in Figures 1 and 2, the intelligent sampling and analysis system 100 provided in this application includes a sampling and analysis chamber 10, a circular conveyor belt 20, a workbench 30, multiple analytical instruments 40, a test bottle tray 50, and a robot 60. The sampling and analysis chamber 10 encloses a receiving cavity 11. The circular conveyor belt 20 is divided into a sample inlet area 21, a waiting area 22, a first sample outlet area 23, and a second sample outlet area 24 along its conveying direction. The waiting area 22 and the first sample outlet area 23 are located inside the receiving cavity 11, while the sample inlet area 21 and the second sample outlet area 24 are located outside the sampling and analysis chamber 10. The workbench 30 is located on the side of the circular conveyor belt 20 away from the sampling and analysis chamber 10 and is connected to the sample inlet area 21 and the second sample outlet area 24, respectively. The workbench 30 is equipped with a pressure plate assembly 31 and a sample dispenser 32. The pressure plate assembly 31 corresponds to the sample inlet area. The sample inlet 21 is set up to push the test bottles 200 on the workbench 30 into the sample inlet 21 of the annular conveyor belt 20. The sample pusher 32 is set up corresponding to the second sample outlet 24 to guide the test bottles 200 in the second sample outlet 24 back to the workbench 30. Multiple analytical instruments 40 are set up in the accommodating cavity 11. The test bottle tray 50 is set up in the accommodating cavity 11. The test bottle tray 50 is divided into a main sample area 501 and a reserve sample area 502. The test bottle tray 50 has multiple bottle slots 51 arranged in sequence at intervals at the positions of the main sample area 501 and the reserve sample area 502. Each bottle slot 51 is used to carry the test bottles 200. The robot 60 is set up in the accommodating cavity 11. The robot 60 includes a manipulator 61. The manipulator 61 is equipped with a barcode scanner 611. The barcode scanner 611 is used to scan and identify the test bottles 200 grasped and transported by the manipulator 61.

[0024] Here, the analytical instrument 40 in this application can specifically adopt existing conventional technology. When it is working, it can automatically open the test bottle 200, take samples and analyze them to meet the needs of automated analysis of sewage samples. Since the analytical instrument 40 is not the technical problem to be solved in this application, it will not be elaborated here.

[0025] As can be seen from the above, the intelligent sampling and analysis system 100 of this application integrates a circular conveyor belt 20, a workbench 30, a pressure plate assembly 31, and a sample feeder 32 to achieve fully automatic circulation of the test bottle 200 from the external workbench 30 to the internal functional areas, and replaces the traditional manual loading and unloading operations. This not only greatly reduces labor intensity and avoids human error and sample contamination risks, but also improves analysis efficiency and meets the needs of large-scale continuous monitoring.

[0026] Here, a QR code (not shown) is marked on the cap 201 of the test bottle 200. The barcode scanner 611 on the robotic arm 61 can identify the QR code on the cap 201 while grasping the test bottle 200 to confirm the identity of the grasped and transported test bottle 200. At the same time, the feedback signal generated by the barcode scanner 611 after scanning the QR code on the test bottle 200 can be used as a control signal for the automated operation of the intelligent sampling and analysis system 100. It should be noted that the barcode scanner 611 integrates a camera module (not shown), which is used to scan the QR code on the cap 201 to identify the test bottle 200.

[0027] This application includes four analytical instruments 40. When operating, these four instruments 40 can separately sample and analyze four components—ammonia nitrogen, total phosphorus, permanganate index, and heavy metals—in wastewater samples contained in test bottles 200. Correspondingly, the intelligent sampling and analysis system 100 also operates on four types of test bottles 200. It should be noted that the specific component of the wastewater sample in the test bottle 200 sampled and analyzed by the analytical instrument 40 is determined by the detection module within the instrument 40, and will not be elaborated upon here.

[0028] As shown in Figure 1, in one embodiment, a baffle 25 is provided on the annular conveyor belt 20. The baffle 25 is located on the side of the sample inlet area 21 facing the waiting area 22, and the baffle 25 can abut and limit the test bottles 200 pushed and conveyed by the pressure plate assembly 31, preventing the test bottles 200 from falling out of the sample inlet area 21 due to excessive pushing. With this design, the test bottles 200 on the workbench 30 can enter the sample inlet area 21 of the annular conveyor belt 20 sequentially under the push of the pressure plate assembly 31, and achieve continuous sample feeding by means of the mutual squeezing between the test bottles 200. When the annular conveyor belt 20 starts and conveys the test bottles 200 in the sample inlet area 21 to the waiting area 22, the test bottles in the workbench 30 will still move towards the sample inlet area 21 of the annular conveyor belt 20 under the continuous pushing of the pressure plate assembly 31 until they are abutted and limited by the baffle 25, thereby ensuring that the test bottle feeding process is stable, orderly and accurate.

[0029] As shown in Figure 1, in one embodiment, the pressure plate assembly 31 includes a pressure plate 311 and a spring-loaded pressure plate 312. The spring-loaded pressure plate 312 is disposed outside the pressure plate 311 and abuts against the pressure plate 311 in a pre-deformed manner. Furthermore, the pressure plate 311 can drive the test bottle 200 on the worktable 30 into the sample feeding area 21 of the annular conveyor belt 20 under the pushing force of the spring-loaded pressure plate 312. That is to say, the pressure plate assembly 31 of this embodiment can use the rebound force of the spring-loaded pressure plate 312 during pre-deformation to drive the pressure plate 311 and push the test bottle 200 on the worktable 30.

[0030] Here, the pressure plate 311 is rotatably mounted on the worktable 30, and one end of the spring-loaded pressure plate 312 is fixed to the worktable 30. Of course, it is not limited to this. For those skilled in the art, a drive motor (not shown) can also be installed on the worktable 30 to drive the pressure plate 311 to push the test bottle 200 on the worktable 30.

[0031] As shown in Figure 1, in this embodiment, the workbench 30 is also equipped with an arc-shaped plate 33, which is located on the outer side of the free end of the pressure plate 311. This arc-shaped plate 33 is used to limit the movement of the test bottles 200 placed on the workbench 30, ensuring that all test bottles 200 placed on the workbench 30 can enter the sample feeding area 21 of the annular conveyor belt 20 in an orderly manner under the push of the pressure plate 311. It should be noted that the test bottles 200 on the workbench 30 can be manually loaded. In specific operation, the operator can manually move the pressure plate 311 to place the test bottles 200 on the workbench 30 to achieve the manual loading process.

[0032] As shown in Figure 1, in one embodiment, the workbench 30 is divided into multiple recycling zones 34. These recycling zones 34 are distributed sequentially and at intervals along the conveying direction of the annular conveyor belt 20 within the second sample outlet zone 24. A sample dispenser 32 is provided at each location where a recycling zone 34 connects to the second sample outlet zone 24. The number of recycling zones 34 is equal to the number of analytical instruments 40. In other words, this embodiment allows for the precise transfer of test bottles 200 conveyed to the second sample outlet zone 24 into the corresponding recycling zone 34 by activating the appropriate sample dispenser 32, thereby achieving on-demand sorting and recycling.

[0033] Here, four sample dispensers 32 are configured. Each sample dispenser 32 is driven by a motor to move a sample-dispensing plate 321, which guides and dispenses the test bottles 200 in the second sample outlet area 24 of the annular conveyor belt 20 to the corresponding recovery area 34. It should be noted that the start signal of the motor in the sample dispenser 32 can be set and controlled according to the position of the robot arm 61 in conveying the test bottles 200 to the first sample outlet area 23 of the annular conveyor belt 20, and the running time of the annular conveyor belt 20 in transporting the test bottles 200 from the first sample outlet area 23 to the second sample outlet area 24. The specific linkage logic and timing design will not be elaborated here.

[0034] As shown in Figure 1, in one embodiment, the intelligent sampling and analysis system 100 further includes a guide frame 210, which is located in the area of ​​the waiting area 22. One end of the guide frame 210 has a flared opening 211 for guiding the test bottles 200 sequentially into the guide frame 210. The other end of the guide frame 210 is closed. Thus, the robotic arm 61 of the robot 60 can grasp the test bottles 200 located at the closed end of the guide frame 210, thereby ensuring that the test bottles in the waiting area 22 can be stably grasped by the robotic arm 61.

[0035] As shown in Figure 2, in one embodiment, each bottle slot 51 is equipped with a weighing module 52 at its bottom. The weighing module 52 is used to carry the test bottles 200 and weigh them. In addition, each bottle slot 51 in the main sample area 501 of the test bottle tray 50 is provided with a movable bottle frame 53. Furthermore, some bottle slots 51 in the sample preparation area 502 of the test bottle tray 50 are also provided with movable bottle frames 53. The movable bottle frame 53 has a clearance hole 531 at its bottom, which allows the corresponding weighing module 52 to pass through and enter. This arrangement ensures that the installation of the movable bottle frame 53 in the bottle slot 51 does not affect the weighing function of the weighing module 52 on the test bottles 200 carried in the bottle slot 51.

[0036] Here, the weighing module 52 can be a device that integrates a pressure sensor or a strain gauge weighing sensor. It uses the feedback signal generated by the corresponding sensor after being pressed down by the test bottle 200 to determine that the test bottle 200 is placed in the corresponding bottle slot 51. This allows the intelligent sampling and analysis system 100 to construct a precise and stable identification and on-site management mechanism for test bottles 200 by configuring a test bottle tray 50 with a weighing module 52 and a robot 60 with a barcode scanner 611. On the one hand, the barcode scanner 611 can directly and reliably identify the test bottles 200 being grasped, effectively avoiding visual recognition failures caused by complex lighting environments, damaged labels, and other factors, thereby reducing the cost and misjudgment rate of the intelligent sampling and analysis system 100. On the other hand, the weighing module 52 at the bottom of the bottle tank 51 can be linked with the barcode information to monitor the status of the test bottles 200 and the load of the test bottle tray 50 in real time, providing data support for the intelligent scheduling of the test bottle tray 50. Thus, the entire process from sample introduction, analysis, temporary storage to sample output is automated and intelligently managed in a closed loop, significantly improving the reliability, continuity, and operating efficiency of the intelligent sampling and analysis system 100.

[0037] In this system, robot 60 can use robotic arm 61 to transfer moving bottle frames 53 between the main sample area 501 and the reserve sample area 502. Specifically, when robot 60 uses robotic arm 61 to grab a test bottle 200 from the bottle slot 51 in the main sample area 501, if the corresponding weighing module 52 still detects weight and sends a feedback signal, it indicates that the grab failed. At this time, robot 60 can grab the corresponding moving bottle frame 53 from the bottle slot 51 and move it to the empty bottle slot 51 in the reserve sample area 502, while simultaneously grabbing an empty moving bottle frame 53 from the reserve sample area 502 to replace the corresponding position in the main sample area 501. This process ensures the continuity of operation of the intelligent sampling and analysis system 100 and avoids affecting the operation of the entire system due to a malfunction in a bottle slot 51 in the main sample area 501.

[0038] As shown in Figure 1, in one embodiment, the intelligent sampling and analysis system 100 further includes a robot track 70, on which a robot 60 is mounted. Multiple analytical instruments 40 are located between the circular conveyor belt 20 and the test bottle tray 50, and are arranged on two symmetrical sides of the robot track 70. It should be noted that the specific structure of the robot 60, its linear movement on the robot track 70, and the working principle of the robotic arm 61 in grasping and unscrewing the caps 201 of the test bottles 200 can all be implemented using existing conventional technologies, and will not be elaborated upon here.

[0039] As shown in Figure 3, this application also provides a sampling and analysis method applied to the intelligent sampling and analysis system 100 described above. The sampling and analysis method includes: controlling the operation of the circular conveyor belt 20 to transport the test bottles 200 in the sample entry area 21 to the waiting area 22; controlling the operation of the robot 60 to transport the test bottles 200 in the waiting area 22 to the main sample area 501 of the test bottle tray 50 via the robotic arm 61; and controlling the operation of the robot 60 to sequentially transport the test bottles 200 in the main sample area 501 of the test bottle tray 50 one by one via the robotic arm 61. The sample is sent to one of the analytical instruments 40; the analytical instrument 40 is controlled to operate and complete the sampling and analysis of the wastewater sample in the test bottle 200; the robot 60 is controlled to operate and the robotic arm 61 transfers the test bottle 200 that has completed the sampling and analysis from the corresponding analytical instrument 40 to the first sampling area 23 of the circular conveyor belt 20; the circular conveyor belt 20 is controlled to operate and transfer the test bottle 200 in the first sampling area 23 to the second sampling area 24; the sample transfer device 32 is controlled to operate and guide the test bottle 200 in the second sampling area 24 back to the workbench 30.

[0040] It should be noted that the above sampling and analysis method is for the sampling and analysis of one of the test bottles 200. For those skilled in the art, the test bottles 200 taken from the waiting area 22 can also be placed directly into the corresponding analytical instrument 40 for sampling and analysis according to the set program; or, all the test bottles 200 in the waiting area 22 can be transferred to the main sample area 501 of the test bottle tray 50, and then the test bottles 200 can be placed into the corresponding analytical instrument 40 for sampling and analysis in the main sample area 501. This will not be elaborated here.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An intelligent sampling and analysis system, characterized in that, The intelligent sampling and analysis system (100) includes: a sampling and analysis chamber (10) enclosing a cavity (11); and a ring conveyor belt (20) divided into a sample inlet area (21), a waiting area (22), a first sample outlet area (23), and a second sample outlet area (24) along its conveying direction. The waiting area (22) and the first sample outlet area (23) are located inside the cavity (11), and the sample inlet area (21) and the second sample outlet area (24) are located inside the sampling and analysis chamber (100). Outside the analysis chamber (10); a workbench (30), located on the side of the annular conveyor belt (20) away from the sampling analysis chamber (10), and connected to the sample inlet area (21) and the second sample outlet area (24) respectively. The workbench (30) is provided with a pressure plate assembly (31) and a sample pusher (32). The pressure plate assembly (31) is set corresponding to the sample inlet area (21) and is used to push the test bottle (200) on the workbench (30) to the inlet of the annular conveyor belt (20). Within the sample area (21), the sample dispenser (32) is positioned corresponding to the second sample outlet area (24) to guide the test bottles (200) within the second sample outlet area (24) back to the workbench (30); multiple analytical instruments (40) are located within the accommodating cavity (11); a test bottle tray (50) is located within the accommodating cavity (11), the test bottle tray (50) being divided into a main sample area (501) and a reserve sample area (502), the test bottle tray (50) being positioned within the main sample area (501)... Multiple bottle slots (51) are arranged sequentially at intervals at the positions of 01) and the sample preparation area (502), and each bottle slot (51) is used to carry the test bottle (200); a robot (60) is provided in the accommodating cavity (11), the robot (60) includes a manipulator (61), and a barcode scanner (611) is installed on the manipulator (61). The barcode scanner (611) is used to scan and identify the test bottle (200) grasped and transported by the manipulator (61).

2. The intelligent sampling and analysis system according to claim 1, characterized in that, Each of the bottle slots (51) is equipped with a weighing module (52) at the bottom, which is used to carry the test bottles (200) and weigh them; and the test bottle tray (50) places a movable bottle frame (53) in each bottle slot (51) in the main sample area (501), and the test bottle tray (50) also places a movable bottle frame (53) in some bottle slots (51) in the reserve sample area (502); wherein the movable bottle frame (53) has a clearance hole (531) at its bottom, which allows the corresponding weighing module (52) to pass through and enter; and the robot (60) can also transfer the movable bottle frame (53) between the main sample area (501) and the reserve sample area (502) through the manipulator (61).

3. The intelligent sampling and analysis system according to claim 1, characterized in that, The intelligent sampling and analysis system (100) also includes a robot track (70), on which the robot (60) is mounted; wherein, multiple analytical instruments (40) are located between the annular conveyor belt (20) and the test bottle tray (50), and are arranged on two symmetrical sides of the robot track (70).

4. The intelligent sampling and analysis system according to claim 1, characterized in that, The intelligent sampling and analysis system (100) further includes a guide frame (210), which is located in the area where the waiting area (22) is located; wherein, one end of the guide frame (210) is formed with a flared mouth (211) for guiding the test bottles (200) to enter the guide frame (210) in sequence; and the other opposite end of the guide frame (210) is set to be closed.

5. The intelligent sampling and analysis system according to claim 1, characterized in that, The annular conveyor belt (20) is provided with a baffle (25), which is located on the side of the sample inlet area (21) facing the sample waiting area (22), and the baffle (25) can abut against and limit the test bottle (200) pushed and conveyed by the pressure plate assembly (31).

6. The intelligent sampling and analysis system according to claim 5, characterized in that, The pressure plate assembly (31) includes a pressure plate (311) and a spring pressure plate (312). The spring pressure plate (312) is located outside the pressure plate (311) and abuts against the pressure plate (311) in a pre-deformed manner. The pressure plate (311) can drive the test bottle (200) on the workbench (30) into the sample feeding area (21) of the annular conveyor belt (20) under the pushing of the spring pressure plate (312).

7. The intelligent sampling and analysis system according to claim 1, characterized in that, The workbench (30) is divided into multiple recovery zones (34), which are distributed sequentially at intervals along the conveying direction of the portion of the annular conveyor belt (20) within the second sample outlet zone (24). Each recovery zone (34) is connected to the second sample outlet zone (24) by a sample feeder (32). The number of recovery zones (34) is equal to the number of analytical instruments (40).

8. A sampling analysis method, applied to the intelligent sampling analysis system (100) according to any one of claims 1 to 7; characterized in that, The sampling and analysis method includes: controlling the operation of the circular conveyor belt (20) to transfer the test bottles (200) in the sample injection area (21) to the waiting area (22); controlling the operation of the robot (60) to transfer the test bottles (200) in the waiting area (22) to the main sample area (501) of the test bottle tray (50) through the robotic arm (61); controlling the operation of the robot (60) to transfer the test bottles (200) in the main sample area (501) of the test bottle tray (50) one by one to one of the analytical instruments (40) through the robotic arm (61); controlling the analytical instrument ( 40) Run the machine to complete the sampling and analysis of wastewater samples in the test bottles (200) inside; control the robot (60) to run the robot arm (61) to transfer the test bottles (200) that have completed the sampling and analysis from the corresponding analytical instrument (40) to the first sampling area (23) of the circular conveyor belt (20); control the circular conveyor belt (20) to run the machine to transfer the test bottles (200) in the first sampling area (23) to the second sampling area (24); control the sample transfer device (32) to run the machine to guide the test bottles (200) in the second sampling area (24) back to the workbench (30).

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