A new type of fully automated volume determination instrument and volume determination method

Abstract

The present invention provides a novel fully automated volumetric instrument and volumetric method, the volumetric instrument comprises: a liquid adding component, a camera moving component; the camera moving component detects and tracks the scale line and liquid level of the volumetric flask from bottom to top; the liquid adding component is provided with a fast liquid adding channel and a precise volumetric channel; the liquid adding component comprises a bottle clamp and a liquid injection nozzle component, and a transverse clamping jaw component; a bottle cap uncapping actuator is provided with a bottle cap uncapping actuator, the uncapping jaw is connected with the bottle cap clamping, the bottle cap is uncapped or capped, and the transverse clamping jaw component clamps the volumetric flask and centers the volumetric flask. The present invention improves the recognition rate and tracking stability by changing the visual recognition scale line and liquid level method, moving the camera upward from the bottom of the volumetric flask; designs a fast liquid adding and precise volumetric dual-channel liquid circuit, shortens the volumetric time, and improves the volumetric accuracy; adds the bottle cap uncapping and bottle capping design, realizes a fully automated volumetric process, and the sample volumetric is safe, accurate, controllable, and traceable, thereby improving the sample volumetric efficiency and accuracy.

Description

Technical Field

[0001] The present invention relates to the field of automated volume determination technology, and in particular to a novel fully automated volume determination instrument and a volume determination method. Background Art

[0002] At present, the volume determination operation in the laboratory is still mainly done manually. In the laboratory, especially when the sample test volume is large, manual operation is prone to errors due to fatigue or lack of concentration. Moreover, most of the commonly used volume determination solvents in the laboratory are corrosive and harmful to the human body, especially organic solvents are often volatile, toxic or highly toxic, and are not suitable for manual operation.

[0003] With the improvement of laboratory automation, more and more laboratories are beginning to use automated instruments to replace traditional manual operations. Through automated operations, the volumetric analyzer reduces human errors, protects the health of laboratory personnel, and promotes laboratory automation construction to meet the needs of different laboratories and experimental scenarios.

[0004] There is a type of volumetric instrument currently on the market that uses visual recognition to achieve volumetric operation. However, the volumetric instrument does not achieve fully automated volumetric operation and does not have the function of removing and capping the bottle cap. When volatizing a large number of volumetric bottles, the bottle cap and the volumetric bottle are prone to mismatch, which can cause the bottle cap to separate from the volumetric bottle and cause a large amount of solvent to evaporate.

[0005] In addition, existing volumetric instruments only have the volumetric function, but no liquid adding function. The volumetric time is relatively long and the volumetric efficiency is low. The way to find the scale line and liquid level is generally to fix the camera and clamp the volumetric bottle and move it up and down. This volumetric bottle has low stability when it is in motion and the volumetric accuracy is not high. There are also products that find the scale line by moving the camera. The camera moves from the top of the volumetric bottle to the bottom. However, this top-down movement method is slow in identifying the scale line and liquid level, which is not conducive to tracking the liquid level.

[0006] In addition, the doors of existing constant volume instruments are double-doored, which have low stability when opening and closing the doors and are not effective in blocking external ambient light. Summary of the invention

[0007] In view of this, the purpose of the present invention is to design a novel fully automated volumetric instrument and volumetric method, design a fast liquid addition, precise volumetric dual-channel liquid circuit, shorten the volumetric time, improve the volumetric efficiency and volumetric accuracy; change the method of visually identifying the scale lines and liquid levels of the volumetric flask, adopt the method of moving the camera from the bottom of the volumetric flask upward, improve the recognition rate and tracking stability for the scale lines and liquid levels of different volumetric flasks, and improve the recognition efficiency and recognition accuracy for the scale lines and liquid levels; increase the design of bottle cap removal and bottle cap cover, through the integration of multiple functions such as volumetric flask recognition, bottle cap removal and bottle cap cover, liquid addition, volumetric and so on, truly realize the complete volumetric flask entry, after the volume is completed, exit the fully automated volumetric process, effectively improve the efficiency and accuracy of sample volumetric determination, make the sample volumetric determination safer, more accurate, controllable, traceable, improve user experience; and the structural design is simple and reasonable, improves the integrity and applicability, so as to facilitate popularization and application.

[0008] The invention provides a novel fully-automatic volumetric instrument, comprising: a liquid adding component and a camera moving component; the camera moving component is connected with the liquid adding component by signal, the camera moving component detects and tracks the scale line and the liquid level of a volumetric flask from bottom to top, and the liquid adding component adds sample liquid into the volumetric flask; the liquid adding component is provided with two channel liquid paths, namely a fast liquid adding channel and a precise volumetric channel, and the fast liquid adding channel is connected in parallel with the precise volumetric channel; the fast liquid adding channel realizes fast liquid adding and shortens the time, and the precise volumetric channel can perform slow volumetric addition and further improves the volumetric accuracy.

[0009] The liquid adding assembly includes: a bottle clamp and liquid injection nozzle assembly, and a transverse clamping jaw assembly; the bottle clamp and liquid injection nozzle assembly is provided with a bottle cap uncapping actuator, the bottle cap uncapping actuator is provided with a uncapping jaw, and the bottle clamp and liquid injection nozzle assembly is provided with a liquid adding tube; the uncapping jaw is detachably clamped and connected to the bottle cap of the volumetric flask to realize the bottle cap being pulled out or pressed down to cover; the bottle cap uncapping actuator is added to realize the functions of uncapping and covering the bottle cap. When there are many fixed volume volumetric bottles, the correspondence between the bottle cap and the volumetric flask will not be wrong, thereby avoiding the phenomenon of the bottle cap being separated from the volumetric flask and the solvent volatilizing in large quantities, thereby improving the user experience. The transverse clamping jaw assembly clamps the volumetric flask and keeps the volumetric flask centered relative to the uncapping jaw and the liquid adding tube. When the bottle cap uncapping actuator uncaps the bottle cap of the volumetric flask, it has a fixed barrier effect on the volumetric flask, which facilitates the bottle cap uncapping actuator to uncap the bottle cap.

[0010] The bottle clamp, the liquid injection nozzle assembly, and the clamping openings in the transverse clamping jaw assembly in the present invention are all adjustable structures, which are compatible with volumetric flasks of various specifications and can operate on volumetric flasks of more than 7 specifications. Compared with existing volumetric meter products in which one device can only volumetric flasks of 2 to 3 specifications, the present invention has stronger applicability.

[0011] Furthermore, the camera moving assembly is provided with a screw spiral moving mechanism, a camera image sensor is fixedly mounted on the nut portion of the screw spiral moving mechanism, and the camera image sensor moves translationally from bottom to top along the screw portion of the screw spiral moving mechanism along with the nut portion.

[0012] The screw screw moving mechanism is a motion mechanism used to transmit linear motion like the gear rack. Compared with the gear rack, it has higher precision, better use environment, lower noise, faster speed, and is suitable for precision positioning.

[0013] Furthermore, a magnetic base is provided at the bottom of the bottle clamp and the liquid injection nozzle assembly, and the magnetic base includes: a bottle moving chassis and a bottle base arranged in sequence from bottom to top, a magnet and a magnet suction sheet are arranged in the bottle moving chassis, and the bottom of the volumetric flask is accommodated in the bottle base; a liquid adding bottle moving assembly is provided at the bottom of the liquid adding assembly, and the liquid adding bottle moving assembly is detachably connected to the bottle base; the liquid adding bottle moving assembly moves the volumetric flask to the bottle cap removal actuator and the liquid adding tube in two times. The prior art constant volume instrument only moves the volumetric flask to the constant volume (liquid adding tube), and does not move it to the bottle cap removal position, nor does it have the function of removing and capping the bottle cap.

[0014] The use of a magnetic base makes the base of the volumetric flask more solid and reliable, avoiding the shaking during the liquid addition process and due to moving the volumetric flask, and further improving the stability in the liquid addition and volume determination operation.

[0015] Furthermore, the capping clamp includes two symmetrically arranged claws, and the space between the two claws is surrounded by a front, middle and rear three-part space shape, wherein the front part is two V-shaped enclosed space shapes, the middle part is a large-width rectangular space shape, and the rear part is a small-width rectangular space shape; the distance between the two claws is adjustable. The present invention can be compatible with various specifications of volumetric bottle caps through the various shapes of clamping space designs of the bottle stopper grabbing mechanical claws, thereby improving applicability.

[0016] Furthermore, the new fully automated volumetric instrument also includes: a cabin door, the cabin door includes a movable door assembly, the movable door assembly is provided with a synchronous belt transmission mechanism and a single door panel, the synchronous belt transmission mechanism is transmission-connected to the single door panel, and the single door panel performs translational motion along a guide rail.

[0017] The hatch door of the present invention adopts a single-door design with a single door panel, which has greater movement stability and can block more external ambient light from entering compared to the double door panels in the prior art.

[0018] The present invention also provides a novel fully automated volume determination method, which is applied to the novel fully automated volume determination instrument as described above, and comprises the following steps:

[0019] The host reads the status of the volumetric instrument. When the volumetric instrument is in an idle state, the volumetric bottle is placed on the magnetic base. The host (preferably via Ethernet) sends a start-up volumetric and / or liquid-adding operation command to the volumetric instrument. The volumetric instrument starts to work. The liquid-adding bottle moving assembly translates the volumetric bottle from the initial position outside the cabin to the capping position, closes the cabin door, and the bottle clamp clamps the volumetric bottle.

[0020] The bottle cap uncapping actuator moves downward by a set distance according to different volumetric bottles, clamps the bottle cap of the quantitative bottle, and performs the uncapping operation. The transverse clamping jaw assembly clamps the volumetric bottle, and the bottle cap uncapping actuator lifts up to uncap the bottle cap from the volumetric bottle.

[0021] The liquid adding bottle moving assembly moves the volumetric flask with the bottle cap removed to a fixed volume position, and the bottle clamp and liquid injection nozzle assembly moves the liquid adding tube downward to the bottle mouth position of the volumetric flask;

[0022] If a command to add liquid is received from the host, the liquid will be added according to the capacity requirement; if a command to set the volume is received from the host, the camera image sensor will move upward from the bottom of the volumetric flask to collect images, find the position of the scale line of the volumetric flask according to the image, and start the setting volume operation;

[0023] Specifically, searching for the position of the scale line of the volumetric flask according to the image includes:

[0024] The integrated high-resolution camera image sensor is used to analyze and process the captured visual information in real time through image acquisition, preprocessing, feature extraction, target recognition and tracking and other monitoring methods, so as to realize continuous and accurate monitoring and analysis of the liquid level and scale line of the volumetric bottle, thereby calculating the difference between the liquid level and the scale line, controlling the precise amount of liquid added, and achieving closed-loop control and real-time constant volume. The specific processing process includes:

[0025] (1) Use high-resolution camera image sensors to capture real-time video streams as input for visual processing;

[0026] (2) De-noising, contrast enhancement, grayscale conversion, etc. are performed on the collected video stream images to improve image quality;

[0027] (3) Extract key feature information from the preprocessed image using edge detection, corner detection, texture analysis, and deep learning techniques;

[0028] (4) Identify the target location in the image based on the extracted features;

[0029] (5) For the identified targets, use optical flow method, Kalman filter and other technologies to continuously track their position and state changes in consecutive frames.

[0030] (6) Compare the results of target recognition and tracking with preset thresholds or rules to achieve closed-loop control.

[0031] After the volume is set and / or the liquid is added, the volumetric flask is moved horizontally to the capping position, and then the capping operation is performed;

[0032] After the bottle cap is put on, the cabin door is opened, and the liquid adding bottle moving assembly moves the volumetric bottle to the initial position outside the cabin, completing the current volume setting operation, and waiting for the volumetric bottle to be taken away;

[0033] After receiving the status reading command from the host, the volume constant device sends the system status and sub-process status of the volume constant device to the host, completes one volume constant, and waits for the next operation.

[0034] Preferably, the camera moving assembly, the bottle cap pulling actuator, and the lateral clamping jaw assembly of the present invention are all driven by servo motors as actuator motors. The present invention does not use the stepper motor used in the existing constant volume instrument, but improves the design to a servo motor, which has excellent overload resistance and greatly improves the operation stability and safety compared to the stepper motor with poor overload capacity.

[0035] Furthermore, the method of the bottle cap removal actuator moving downward by a set distance according to bottles of different capacities includes:

[0036] According to the characteristic parameters of different volumetric bottles, the precise downward movement distance required for the volumetric bottle is calculated, and the bottle cap uncapping actuator is controlled to reach the bottle cap position through a precision drive device. During the movement of the bottle cap uncapping actuator, the moving position is monitored in real time (preferably through an optical sensor integrated in the constant volume instrument) to protect the upper and lower limits of the uncapping movement and ensure the safety of the uncapping operation.

[0037] Further, the method of moving the camera image sensor upward from the bottom of the volumetric flask to collect images, finding the position of the scale line of the volumetric flask according to the image, and starting the volume setting operation includes:

[0038] The position of the scale line is calculated and found based on the image of the camera image sensor, and the position information is used as a data signal to interact with the precision liquid-adding flow pump; based on the position information of the scale line, the amount of liquid that needs to be added or removed is calculated to reach the target capacity; the precision liquid-adding flow pump is started to accurately control the flow of the liquid and start the constant volume operation. During the entire constant volume operation, the position changes of the scale line and the liquid level are continuously tracked and monitored to ensure the accuracy and efficiency of the constant volume operation; once the target capacity is reached, the liquid processing is stopped, thereby completing the entire constant volume process.

[0039] The present invention also provides a computer-readable storage medium having a computer program stored thereon, and when the program is executed by a processor, the steps of the novel fully-automatic volume determination method as described above are implemented.

[0040] The present invention also provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the novel fully automated volume determination method as described above are implemented.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] The novel fully-automatic volumetric instrument and volumetric determination method provided by the present invention improve the recognition rate and tracking stability of the scale lines and liquid levels of different volumetric flasks and improve the recognition efficiency and recognition accuracy of the scale lines and liquid levels by changing the method of visually identifying the scale lines and liquid levels of the volumetric flask and adopting the mode of moving the camera from the bottom of the volumetric flask upwards; the fast liquid addition and precise volume determination dual-channel liquid circuit is designed to shorten the volume determination time and improve the volume determination efficiency and volume determination accuracy; the bottle cap removal and bottle cap cover function design is added, and through the integration of multiple functions such as volumetric flask recognition, bottle cap removal and bottle cap cover, liquid addition, volume determination and the like, a fully-automatic volume determination process of a complete volumetric flask entering and exiting after volume determination is completed is truly realized, the efficiency and accuracy of sample volume determination are effectively improved, the sample volume determination is made safer, more accurate, controllable and traceable, the user experience is greatly improved, and the structure is simple and reasonable, the integrity is strong, the applicability is good, and the device has broad prospects for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the following detailed description of the preferred embodiment.The drawings are only for the purpose of illustrating the preferred embodiments and are not to be construed as limiting the invention.

[0044] In the attached picture:

[0045] Figure 1 It is a schematic diagram of the basic principle of the camera image sensor searching for scale lines and liquid levels from bottom to top and removing and covering the bottle cap in an embodiment of the present invention;

[0046] Figure 2 1 is an execution flow chart of a fully automated volume determination method in an embodiment of the present invention;

[0047] Figure 3 This is an external structural diagram of a novel fully automated volume fixer of the present invention;

[0048] Figure 4 This is an internal structure diagram of a novel fully automated volume fixer of the present invention;

[0049] Figure 5 This is a flow chart of a novel fully automated volume determination method of the present invention;

[0050] Figure 6 A top view of the structural layout of the capping clamping jaw, the liquid adding pipe, and the transverse clamping jaw assembly according to an embodiment of the present invention;

[0051] Figure 7 It is a schematic diagram of the structure decomposition of the capping clamping jaw, the liquid adding pipe, and the transverse clamping jaw assembly according to an embodiment of the present invention;

[0052] Figure 8 This is a structural diagram of the bottle clamp and liquid injection nozzle assembly according to an embodiment of the present invention;

[0053] Fig. 9 It is a structural diagram of the camera moving assembly according to an embodiment of the present invention;

[0054] Fig.10 It is a structural diagram of the lateral clamping jaw assembly according to an embodiment of the present invention;

[0055] Fig.11 This is a structural diagram of a movable door assembly according to an embodiment of the present invention;

[0056] Fig.12 It is a cross-sectional view and a structural exploded view of the magnetic base of an embodiment of the present invention;

[0057] Fig.13 It is a structural diagram of the dual-channel liquid circuit of the fast liquid adding channel and the precise volume fixing channel of the volume fixing instrument according to the embodiment of the present invention;

[0058] Fig.14 The figure is a schematic diagram of the structure of a computer device according to an embodiment of the present invention.

[0059] The symbols in the accompanying drawings are:

[0060] 1. Display screen, 2. Hatch door, 3. Switch and indicator light, 4. Shell, 5. Liquid adding assembly, 6. Bottle cap uncapping actuator, 7. Horizontal clamping jaw assembly, 8. Liquid adding bottle moving assembly, 9. Magnetic base, 10. Camera moving assembly, 11. Moving door assembly, 12. Synchronous belt transmission mechanism, 13. Opposite double clamping jaws, 14. Screw screw moving mechanism, 15. Liquid adding tube, 16. Bracket, 17. Bottom plate, 18. Uncapping clamping jaw, 91. Bottle moving chassis, 92. Bottle base, 93. Magnet, 94. Magnetic suction piece. DETAILED DESCRIPTION

[0061] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Instead, they are merely examples of systems and products consistent with some aspects of the present disclosure as detailed in the appended claims.

[0062] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0063] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0064] The embodiments of the present invention are described in further detail below. Example

[0065] The embodiment of the present invention provides a novel fully automated volume setting instrument, such as Figure 4 As shown, a bottom plate 17 is installed at the lower side of the constant volume instrument, and a bracket 16 is fixedly installed on the upper part of the bottom plate. The bracket 16 and the bottom plate 17 form a frame structure. The camera moving component 10, the bottle clamp and the liquid injection nozzle component and the horizontal clamping claw component 7 are installed in the frame structure. The camera moving component 10 detects and tracks the scale line and liquid level of the volumetric bottle from bottom to top. The camera moving component 10 is connected to the liquid adding component 5 by signal. The liquid adding component 5 adds sample liquid into the volumetric bottle; the liquid adding component 5 is provided with two channel liquid paths (such as a fast liquid adding channel and a precise constant volume channel) Fig.13 As shown in the figure, the fast liquid adding channel and the precise volume fixing channel are connected in parallel, realizing the two functions of fast liquid adding and precise volume fixing. The fast liquid adding channel realizes fast liquid adding and shortens the time, and the precise volume fixing channel can fix the volume slowly and improves the volume fixing accuracy. The volume fixing accuracy of the embodiment of the present invention reaches less than 20μL.

[0066] The capping clamping jaw 18 of the capping actuator 6 clamps the cap of the volumetric flask. Figure 6 As shown (for easier understanding, please also refer to Figure 7 The structure exploded diagram shown in the figure) can be used to grab, remove, and cover the bottle cap of the volumetric flask, realizing the functions of removing and covering the bottle cap. When there are many fixed-volume volumetric flasks, the correspondence between the bottle cap and the volumetric flask will not be wrong. The bottle cap and the volumetric flask correspond to each other, avoiding the phenomenon of the bottle cap and the volumetric flask being separated and the solvent volatilizing in large quantities. The volatilization of the solution and the contamination of the bottle cap are prevented inside the instrument, thereby improving the user experience. The horizontal clamping jaw assembly 7 is provided with opposing double clamping jaws 13 (such as Fig.10 As shown in the figure, the distance between the two jaws of the opposing double jaws 13 is adjustable, and the opposing double jaws 13 clamp the volumetric bottle so that the volumetric bottle is centered relative to the capping jaws 18 and the liquid adding tube 15; when the bottle cap pulling actuator 6 pulls the bottle cap of the volumetric bottle, the horizontal jaw assembly 7 plays a role of fixing the volumetric bottle, so that the bottle cap pulling actuator 6 can pull the bottle cap smoothly. A magnetic base 9 (as shown in the figure) is provided at the bottom of the bottle clamp and the liquid injection nozzle assembly. Fig.12 As shown in the figure), the magnetic base 9 includes a bottle moving chassis 91 and a bottle base 92 which are arranged in sequence from bottom to top. A magnet 93 and a magnet suction sheet 94 are arranged in the bottle moving chassis, and the bottom of the volumetric flask is accommodated in the bottle base 92. The use of a magnetic base makes the base of the volumetric flask more firm and reliable, avoids the liquid adding process and the shaking caused by moving the volumetric flask, and further improves the stability in the liquid adding and volume fixing operation. The bottle base 92 performs translational motion with the liquid adding bottle moving assembly 8, and the liquid adding bottle moving assembly 8 moves the volumetric flask to the position of the bottle cap uncapping actuator 6 and the position of the liquid adding tube 15 in two times. Compared with the prior art constant volume instrument which only moves the volumetric flask to the constant volume (liquid adding tube), this embodiment adds the process of moving to the bottle cap uncapping position, and has the functions of uncapping and capping the bottle cap.

[0067] like Figure 1 As shown, the capping clamp 18 includes two symmetrically arranged clamps, and the space between the two clamps is surrounded by a front, middle, and rear three-part space shape, wherein the front part is two V-shaped enclosed space shapes, the middle part is a wide rectangular space shape, and the rear part is a small rectangular space shape; the distance between the two clamps can be adjusted according to the specifications of the volumetric flask. This embodiment can be compatible with various specifications of volumetric flask caps through the clamping space design of various shapes of the bottle stopper grabbing mechanical clamp, thereby improving applicability.

[0068] In the embodiment of the present invention, the bottle clamp and the liquid injection nozzle assembly (such as Figure 8 As shown), the clamps in the transverse clamp assembly 7 are compatible with volumetric flasks of various specifications, and can operate on volumetric flasks of more than 7 specifications. Compared with the existing volumetric meter products, one device can only volumetric flasks of 2 to 3 specifications, and it has stronger applicability.

[0069] like Fig. 9As shown, the camera image sensor of the camera moving assembly 10 is installed on the nut portion of the screw screw moving mechanism 14, and the camera image sensor moves from bottom to top along the screw portion of the screw screw moving mechanism 14 along with the nut portion. Compared with the gear rack, the screw screw moving mechanism 14 has higher positioning accuracy, lower noise, and faster speed, and is suitable for precise positioning of the constant volume instrument.

[0070] The hatch 2 (opening and closing door) of the novel fully automated volumetric apparatus of this embodiment includes a movable door assembly 11, such as Fig.11 As shown, the movable door assembly 11 is provided with a synchronous belt transmission mechanism 12 and a single door panel, the synchronous belt transmission mechanism 12 is connected to the single door panel in a transmission manner, and the single door panel performs translational motion along the guide rail. The hatch door 2 adopts a single-door (single-side translational motion) design of a single door panel, which has greater movement stability than the double door panels of the prior art and can block more external ambient light from entering.

[0071] like Figure 3 As shown, a display screen 1 is disposed on the upper portion of the housing 4 of the volumetric constant instrument of the present invention to achieve good human-computer interaction; a switch and an indicator light 3 are disposed on the lower portion of the housing 4 for optional manual start or shut down operations.

[0072] The embodiment of the present invention also provides a novel fully automated volume determination method, which is applied to the novel fully automated volume determination instrument as described above, see Figure 5 As shown, the following steps are included:

[0073] S1. The host reads the status of the volumetric instrument. When the volumetric instrument is in an idle state, the volumetric flask is placed on the magnetic base. The host sends a start-up volumetric and / or liquid adding operation command to the volumetric instrument via Ethernet. The volumetric instrument starts to work. The liquid adding bottle moving assembly translates the volumetric flask from the initial position outside the cabin to the capping position, closes the cabin door, and the bottle clamp clamps the volumetric flask.

[0074] S2, the bottle cap uncapping actuator moves down a set distance according to different volumetric bottles, clamps the bottle cap of the quantitative bottle, and performs the uncapping operation, the transverse clamping jaw assembly clamps the volumetric bottle, and the bottle cap uncapping actuator lifts up to uncap the bottle cap from the volumetric bottle;

[0075] S3, the liquid adding bottle moving assembly moves the volumetric flask with the bottle cap removed to the fixed volume position, and the bottle clamp and liquid injection nozzle assembly moves the liquid adding tube downward to the bottle mouth position of the volumetric flask;

[0076] S4. If a command to add liquid is received from the host, liquid is added according to the capacity requirement; if a command to set the volume is received from the host, the camera image sensor moves upward from the bottom of the volumetric flask to collect images, finds the position of the scale line of the volumetric flask according to the image, and starts the setting volume operation;

[0077] The step of searching for the position of the scale line of the volumetric flask according to the image comprises:

[0078] The integrated high-resolution camera image sensor is used to analyze and process the captured visual information in real time through image acquisition, preprocessing, feature extraction, target recognition and tracking and other monitoring methods, so as to realize continuous and accurate monitoring and analysis of the liquid level and scale line of the volumetric bottle, thereby calculating the difference between the liquid level and the scale line, controlling the precise amount of liquid added, and achieving closed-loop control and real-time constant volume. The specific processing process includes:

[0079] (1) Use high-resolution camera image sensors to capture real-time video streams as input for visual processing;

[0080] (2) De-noising, contrast enhancement, grayscale conversion, etc. are performed on the collected video stream images to improve image quality;

[0081] (3) Extract key feature information from the preprocessed image using edge detection, corner detection, texture analysis, and deep learning techniques;

[0082] (4) Identify the target location in the image based on the extracted features;

[0083] (5) For the identified targets, use optical flow method, Kalman filter and other technologies to continuously track their position and state changes in consecutive frames.

[0084] (6) Compare the results of target recognition and tracking with preset thresholds or rules to achieve closed-loop control.

[0085] S5. After the volume is set and / or the liquid is added, the volumetric flask is moved horizontally to the capping position, and then the capping operation is performed;

[0086] S6. After the bottle cap is put on, the cabin door is opened, and the liquid adding bottle moving assembly moves the volumetric bottle to the initial position outside the cabin, completing the current volume setting operation, and waiting for the volumetric bottle to be taken away;

[0087] S7. After receiving the status reading command from the host, the volume stabilizer sends the system status and sub-process status of the volume stabilizer to the host, completes one volume setting, and waits for the next operation.

[0088] The camera moving assembly, bottle cap pulling actuator, and transverse clamp assembly of the embodiment of the present invention are all driven by servo motors as actuator motors. If the actuator motor needs to be calibrated before starting the volume setting and / or adding liquid, after adjusting the position of the actuator motor, a save command is sent, and the control board saves the set value through EEPROM or other storage;

[0089] Calibrating the actuator motor mainly includes the following steps:

[0090] (1) When an error is detected or identified in the operation of the execution motor, a prompt is displayed indicating that calibration is required;

[0091] (2) manually sending instructions to adjust the actuator motor to a suitable position, while the first processor records the current calibration value in real time;

[0092] (3) After adjustment, a save command is sent, and the first processor saves the current calibration value. When it is used later, it is changed to the corrected calibration value to achieve precise control of the execution motor.

[0093] The method of setting the downward movement distance of the bottle cap removal actuator according to the corresponding setting distance of the bottle with different capacity includes:

[0094] According to the characteristic parameters of different volumetric bottles, the precise downward movement distance required for the volumetric bottle is calculated, and the bottle cap uncapping actuator is controlled to reach the bottle cap position by a precision drive device. During the movement of the bottle cap uncapping actuator, the optical sensor integrated in the constant volume instrument monitors the moving position in real time to protect the upper and lower limits of the uncapping movement and ensure the safety of the uncapping operation.

[0095] In this embodiment, the method of moving the camera image sensor upward from the bottom of the volumetric flask to collect images, finding the position of the scale line of the volumetric flask according to the image, and starting the volume setting operation includes:

[0096] like Figure 2 As shown, the second processor calculates and finds the position of the scale line based on the image of the camera image sensor, and transmits the position information as a data signal to the first processor. After receiving this signal, the first processor immediately interacts with the precision liquid adding flow pump; the second processor calculates the amount of liquid that needs to be added or removed based on the position information of the scale line to achieve the target capacity; the first processor starts the precision liquid adding flow pump, accurately controls the flow of liquid, and starts the constant volume operation. During the entire constant volume operation process, the position changes of the scale line and the liquid level are continuously tracked and monitored to ensure the accuracy and efficiency of the constant volume operation; once the target capacity is reached, the second processor stops the liquid processing and sends a completion signal to the first processor, thereby completing the entire constant volume process.

[0097] An embodiment of the present invention further provides a computer device, Fig.14 is a schematic diagram of the structure of a computer device provided by an embodiment of the present invention; see the accompanying drawings Fig.14As shown, the computer device includes: an input system 23, an output system 24, a memory 22 and a processor 21; the memory 22 is used to store one or more programs; when the one or more programs are executed by the one or more processors 21, the one or more processors 21 implement the new fully automated volume determination method provided in the above embodiment; wherein the input system 23, the output system 24, the memory 22 and the processor 21 can be connected by a bus or other means, Fig.14 The example of connecting through bus is taken in the following.

[0098] The memory 22 is a readable and writable storage medium of a computing device, which can be used to store software programs and computer executable programs, such as program instructions corresponding to the new fully automated volume determination method described in the embodiment of the present invention; the memory 22 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function; the data storage area can store data created according to the use of the device, etc.; in addition, the memory 22 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device; in some instances, the memory 22 can further include a memory remotely arranged relative to the processor 21, and these remote memories can be connected to the device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0099] The input system 23 may be used to receive input digital or character information, and to generate key signal input related to user settings and function control of the device; the output system 24 may include display devices such as display screens.

[0100] The processor 21 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory 22, thereby realizing the above-mentioned new fully automatic volume determination method.

[0101] The computer device provided above can be used to execute the new fully automated volume determination method provided in the above embodiment, and has corresponding functions and beneficial effects.

[0102] The embodiment of the present invention also provides a storage medium containing computer executable instructions, which are used to execute the new fully automated volume determination method provided by the above embodiment when executed by a computer processor. The storage medium is any of various types of memory devices or storage devices, and the storage medium includes: installation media, such as CD-ROM, floppy disk or tape system; computer system memory or random access memory, such as DRAM, DDR RAM, SRAM, EDORAM, Rambus RAM, etc.; non-volatile memory, such as flash memory, magnetic media (such as hard disk or optical storage); registers or other similar types of memory elements, etc.; the storage medium may also include other types of memory or combinations thereof; in addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system, which is connected to the first computer system via a network (such as the Internet); the second computer system may provide program instructions to the first computer for execution. The storage medium includes two or more storage media that can reside in different locations (for example, in different computer systems connected via a network). The storage medium can store program instructions (for example, specifically implemented as a computer program) that can be executed by one or more processors.

[0103] Of course, the storage medium containing computer executable instructions provided in an embodiment of the present invention is not limited to the new fully automated volume determination method described in the above embodiment, and the computer executable instructions can also execute related operations in the new fully automated volume determination method provided in any embodiment of the present invention.

[0104] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0105] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of fully automatic volume fixer, characterized in that: include: Liquid adding assembly, camera moving assembly; The camera moving component is connected to the liquid adding component by signal, the camera moving component detects and tracks the scale line and liquid level of the volumetric flask from bottom to top, and the liquid adding component adds sample liquid into the volumetric flask; the liquid adding component is provided with two channel liquid paths, namely, a fast liquid adding channel and a precise volume fixing channel, and the fast liquid adding channel is connected in parallel with the precise volume fixing channel; The liquid adding assembly comprises: a bottle clamp and liquid injection nozzle assembly, and a transverse clamping jaw assembly; the bottle clamp and liquid injection nozzle assembly is provided with a bottle cap uncapping actuator, the bottle cap uncapping actuator is provided with a uncapping clamping jaw, and the bottle clamp and liquid injection nozzle assembly is provided with a liquid adding tube; the uncapping clamping jaw is detachably clamped and connected with the bottle cap of the volumetric flask, so as to realize the bottle cap being pulled out by lifting up or pressed down to cover; the transverse clamping jaw assembly clamps the volumetric flask, so that the volumetric flask is kept centered relative to the uncapping clamping jaw and the liquid adding tube; The camera moving assembly is provided with a screw spiral moving mechanism, a camera image sensor is fixedly mounted on the nut portion of the screw spiral moving mechanism, and the camera image sensor moves along the screw portion of the screw spiral moving mechanism from bottom to top in translation with the nut portion; A magnetic base is provided at the bottom of the bottle clamp and liquid injection nozzle assembly, and the magnetic base includes: a bottle moving chassis and a bottle base which are arranged in sequence from bottom to top, a magnet and a magnet suction sheet are arranged in the bottle moving chassis, and the bottom of the volumetric flask is accommodated in the bottle base; a liquid adding bottle moving assembly is provided at the bottom of the liquid adding assembly, and the liquid adding bottle moving assembly is detachably connected to the bottle base, and the liquid adding bottle moving assembly moves the volumetric flask to the bottle cap removal actuator and the liquid adding pipe in two times respectively.

2. The novel fully automated volume fixer according to claim 1, characterized in that: The capping clamp comprises two symmetrically arranged claws, and the space between the two claws is surrounded by a front, middle and rear three-part space, wherein the front part is two V-shaped enclosed space shapes, the middle part is a large-width rectangular space shape, and the rear part is a small-width rectangular space shape; the distance between the two claws is adjustable.

3. The novel fully automated volume fixer according to claim 1, characterized in that: Also includes: The cabin door comprises a movable door assembly, wherein the movable door assembly is provided with a synchronous belt transmission mechanism and a single door panel, wherein the synchronous belt transmission mechanism is transmission-connected to the single door panel, and the single door panel performs translational motion along a guide rail.

4. A novel fully automated volume determination method, applied to a novel fully automated volume determination instrument according to any one of claims 1 to 3, characterized in that: The following steps are involved: The host reads the status of the volumetric instrument. When the volumetric instrument is in an idle state, the volumetric bottle is placed on the magnetic base. The host sends a start-up volumetric and / or liquid adding operation command to the volumetric instrument. The volumetric instrument starts to work. The liquid adding bottle moving assembly translates the volumetric bottle from the initial position outside the cabin to the capping position, closes the cabin door, and the bottle clamp clamps the volumetric bottle. The bottle cap uncapping actuator moves downward by a set distance according to different volumetric bottles, clamps the bottle cap of the quantitative bottle, and performs the uncapping operation. The transverse clamping jaw assembly clamps the volumetric bottle, and the bottle cap uncapping actuator lifts up to uncap the bottle cap from the volumetric bottle. The liquid adding bottle moving assembly moves the volumetric flask with the bottle cap removed to a fixed volume position, and the bottle clamp and liquid injection nozzle assembly moves the liquid adding tube downward to the bottle mouth position of the volumetric flask; If a command to add liquid is received from the host, it will start adding liquid according to the capacity requirement; If a command to set the volume is received from the host, the camera image sensor moves upward from the bottom of the volumetric flask to collect images, finds the position of the scale line of the volumetric flask based on the image, and starts the setting volume operation; After the volume is set and / or the liquid is added, the volumetric flask is moved horizontally to the capping position, and then the capping operation is performed; After the bottle cap is put on, the cabin door is opened, and the liquid adding bottle moving assembly moves the volumetric bottle to the initial position outside the cabin, completing the current volume setting operation, and waiting for the volumetric bottle to be taken away; After receiving the status reading command from the host, the volume constant device sends the system status and sub-process status of the volume constant device to the host, completes one volume constant, and waits for the next operation.

5. The novel fully automated volume determination method according to claim 4, characterized in that: The method for the bottle cap removal actuator to move downward by a set distance according to bottles of different capacities includes: According to the characteristic parameters of different volumetric bottles, the precise downward movement distance required for the volumetric bottle is calculated, and the bottle cap uncapping actuator is controlled to reach the position of the bottle cap through a precision drive device. During the movement of the bottle cap uncapping actuator, the moving position is monitored in real time to protect the upper and lower limits of the uncapping movement and ensure the safety of the uncapping operation.

6. The novel fully automated volume determination method according to claim 4, characterized in that: The method of moving the camera image sensor upward from the bottom of the volumetric flask to collect images, finding the position of the scale line of the volumetric flask according to the image, and starting the volume setting operation includes: The position of the scale line is calculated and found based on the image of the camera image sensor, and the position information is used as a data signal to interact with the precision liquid-adding flow pump; based on the position information of the scale line, the amount of liquid that needs to be added or removed is calculated to reach the target capacity; the precision liquid-adding flow pump is started to accurately control the flow of the liquid and start the constant volume operation. During the entire constant volume operation, the position changes of the scale line and the liquid level are continuously tracked and monitored to ensure the accuracy and efficiency of the constant volume operation; once the target capacity is reached, the liquid processing is stopped, thereby completing the entire constant volume process.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the new fully automated volume determination method described in any one of claims 4 to 6 are implemented.

8. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the new fully automated volume determination method as described in any one of claims 4-6 are implemented.

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