CN112915011A - Liquid discharging method and device for liquid separating instrument - Google Patents

Liquid discharging method and device for liquid separating instrument Download PDF

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Publication number
CN112915011A
CN112915011A CN202110088405.5A CN202110088405A CN112915011A CN 112915011 A CN112915011 A CN 112915011A CN 202110088405 A CN202110088405 A CN 202110088405A CN 112915011 A CN112915011 A CN 112915011A
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liquid
height
moment
container
received
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贾全
杨宗兵
王军
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Beijing Zhongguancun Shuimu Medical Technology Co ltd
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Beijing Zhongguancun Shuimu Medical Technology Co ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/22—Arrangements for transferring or mixing fluids, e.g. from vial to syringe with means for metering the amount of fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J2200/00—General characteristics or adaptations
    • A61J2200/70—Device provided with specific sensor or indicating means
    • A61J2200/76—Device provided with specific sensor or indicating means for fluid level

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  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

The specification provides a liquid outlet method and a liquid outlet device for a liquid separation instrument, wherein the method is applied to the liquid separation instrument and comprises the following steps: determining a first liquid level of a container to be received corresponding to a target liquid volume; determining a first moment when a liquid outlet pipe of the liquid separation instrument starts to flow out liquid; judging whether the height of the liquid in the container to be received reaches a preset height threshold value or not; if yes, closing the liquid outlet pipe, and determining the moment as a second moment; when the liquid level of the liquid in the container to be received is stable, measuring the current liquid height, and determining the current liquid height as a second liquid height; the preset height threshold is smaller than the second liquid height, and the second liquid height is smaller than the first liquid height; and controlling the liquid outlet of the liquid outlet pipe again according to the first liquid height, the second liquid height, the first moment and the second moment. The scheme of this specification can improve the play liquid precision of dividing the liquid instrument.

Description

Liquid discharging method and device for liquid separating instrument
Technical Field
The specification relates to the technical field of medical equipment, in particular to a liquid outlet method and device for a liquid separating instrument.
Background
The liquid separating instrument is one high precision chemical equipment for distributing and mixing the liquid in various liquid bottles in certain ratio into different test tubes and liquid separating bottles. The liquid separating instrument comprises a plurality of paths of liquid inlet pipes and a plurality of paths of liquid outlet pipes, the liquid inlet pipes are used for connecting different raw liquid bottles, and the liquid outlet pipes are used for conveying liquid with fixed ratio and fixed quantity to a container to be received.
However, the liquid output accuracy of the conventional liquid-separating instrument is insufficient.
Disclosure of Invention
The embodiment of the specification provides a liquid outlet method and a liquid outlet device for a liquid separation instrument, and the liquid outlet precision of the liquid separation instrument can be improved.
In a first aspect, an embodiment of the present specification provides a liquid outlet method for a liquid separation instrument, which is applied to the liquid separation instrument, and includes:
determining a first liquid level of a container to be received corresponding to a target liquid volume;
determining a first moment when a liquid outlet pipe of the liquid separation instrument starts to flow out liquid;
judging whether the height of the liquid in the container to be received reaches a preset height threshold value or not;
if yes, closing the liquid outlet pipe, and determining the moment as a second moment;
when the liquid level of the liquid in the container to be received is stable, measuring the current liquid height, and determining the current liquid height as a second liquid height; the preset height threshold is smaller than the second liquid height, and the second liquid height is smaller than the first liquid height;
and controlling the liquid outlet of the liquid outlet pipe again according to the first liquid height, the second liquid height, the first moment and the second moment.
In one possible design, the determining a first liquid level of the container to be received corresponding to the target liquid volume includes:
collecting a scale image of a container to be received;
a first liquid level is determined based on the target liquid volume of the container to be received and the scale image.
In one possible design, the liquid separation instrument comprises a plurality of laser emitters and a plurality of laser receivers which are sequentially arranged in the height direction, and the laser emitters and the laser receivers are arranged on two sides of the container to be received;
the judging whether the height of the liquid in the container to be received reaches a preset height threshold value comprises the following steps:
and judging whether the height of the liquid in the container to be received reaches a preset height threshold value or not according to the intensity of the laser received by the laser receiver positioned at the preset height threshold value.
In one possible design, the measuring a current liquid level and determining the current liquid level as the second liquid level when the liquid level of the liquid in the container to be received is stable includes:
acquiring a scale image of the container to be received when the liquid level of the liquid in the container to be received is stable;
and obtaining the current liquid height according to the scale image, and determining the current liquid height as a second liquid height.
In a possible design, the liquid outlet control of the liquid outlet pipe according to the first liquid level, the second liquid level, the first time and the second time comprises:
opening the liquid outlet pipe at a third moment later than the second moment;
determining a fourth moment according to the first liquid height, the second liquid height, the first moment, the second moment and the third moment;
and when the fourth moment is reached, closing the liquid outlet pipe again.
In one possible design, the determining a fourth time based on the first liquid level, the second liquid level, the first time, the second time, and the third time includes:
determining the fourth time by:
Figure BDA0002911553070000031
wherein, T1Characterizing said first moment, T2Characterizing said second moment, T3Characterizing said third moment, T4Characterizing said fourth moment of time, H1Characterizing the first liquid height, H2Characterizing the second liquid height.
In a possible design, after the liquid outlet pipe is closed again when the fourth time is reached, the method further includes:
determining a time difference according to the first time, the second time, the third time and the fourth time, wherein the time difference is determined by the following calculation formula:
ΔT＝(T2-T1)+(T4-T3)
wherein Δ T characterizes the time difference;
and performing liquid outlet control on the subsequent container to be received by utilizing the time difference.
In a second aspect, an embodiment of the present specification provides a liquid outlet device for a liquid separation instrument, which is applied to the liquid separation instrument, and includes:
a first determination module configured to determine a first liquid level of a container to be received corresponding to a target liquid volume;
the second determination module is configured to determine a first moment when the liquid outlet pipe of the liquid separation instrument starts to flow out liquid;
the judging module is configured to judge whether the height of the liquid in the container to be received reaches a preset height threshold value; if yes, closing the liquid outlet pipe, and determining the moment as a second moment;
the third determining module is configured to measure the current liquid height when the liquid level of the liquid in the container to be received is stable, and determine the current liquid height as the second liquid height; the preset height threshold is smaller than the second liquid height, and the second liquid height is smaller than the first liquid height;
and the liquid outlet control module is configured to perform liquid outlet control on the liquid outlet pipe again according to the first liquid height, the second liquid height, the first time and the second time.
In a third aspect, the present specification provides a computer-readable storage medium, where computer instructions are stored on the computer-readable storage medium, and when executed by a processor, the computer instructions cause the processor to execute the method described above.
In a fourth aspect, embodiments of the present description provide a liquid separation apparatus, including: at least one memory and at least one processor;
the at least one memory to store a machine readable program;
the at least one processor is configured to invoke the machine-readable program to perform the method described above.
According to the scheme, the liquid outlet method and the liquid outlet device for the liquid separating instrument, which are provided by the specification, can control the liquid outlet of the liquid outlet pipe by knowing the parameters of the first liquid height, the second liquid height, the first time, the second time and the like, so that the finally-flowing liquid of the liquid outlet pipe can reach the volume which is required to be received by a user, and the accuracy is high.
Drawings
In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present specification, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a liquid outlet method for a liquid separation instrument according to one embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a liquid separation apparatus provided in one embodiment of the present disclosure;
FIG. 3 is a schematic view of a drain and a container to be received provided by one embodiment of the present disclosure;
FIG. 4 is a schematic view of a dispensing apparatus provided in one embodiment of the present disclosure;
fig. 5 is a schematic view of a liquid outlet device for a liquid separation instrument according to an embodiment of the present disclosure.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure more clear, the technical solution in the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are a part of the embodiments of the present disclosure, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present disclosure belong to the protection scope of the present disclosure.
In the existing liquid outlet process of the container to be received by using the liquid separating instrument, for example, the container to be received is required to receive 10ml of liquid, the liquid separating instrument with the general precision can only reach 10ml plus or minus 2ml, and the liquid outlet precision is unacceptable for users. In order to improve the accuracy of liquid output of the liquid-dividing instrument, a solution that uses liquid output hardware (such as a higher-accuracy stepping motor, a higher-accuracy processing chip, etc.) with higher accuracy or higher configuration inside the liquid-dividing instrument is generally adopted, and the accuracy of the liquid-dividing instrument can reach, for example, 10ml ± 0.5ml or even higher.
However, the precision of such a high-precision dispensing instrument is reduced after a long time (for example, 1 year) of use, so that a professional is required to calibrate the dispensing instrument again, and the precision is gradually reduced along with the increase of the service life, so that the working pain of some users cannot be solved well by using the high-precision dispensing instrument.
If the configuration of the liquid outlet hardware is not changed, whether a scheme for indirectly and accurately calculating the liquid outlet volume can be considered. Based on the analysis, the inventor finds a scheme for indirectly improving the liquid outlet precision by paying a great deal of mental labor.
Specific implementations of the concepts provided in the present specification are described below.
Fig. 1 shows a flow chart of a tapping method for a liquid separation instrument according to one embodiment. It is to be appreciated that the method can be performed by any apparatus, device, platform, cluster of devices having computing and processing capabilities. In the examples of the present description, the method is carried out by means of a liquid separation instrument.
Referring to fig. 1, the method includes:
step 101: determining a first liquid level of a container to be received corresponding to a target liquid volume;
step 102: determining a first moment when a liquid outlet pipe of the liquid separation instrument starts to flow out liquid;
step 103: judging whether the height of the liquid in the container to be received reaches a preset height threshold value or not, if so, closing the liquid outlet pipe, and determining the moment as a second moment;
step 104: when the liquid level of the liquid in the container to be received is stable, measuring the current liquid height, and determining the current liquid height as a second liquid height;
step 105: and controlling the liquid outlet of the liquid outlet pipe again according to the first liquid height, the second liquid height, the first moment and the second moment.
It can be seen that in the process shown in fig. 1, by knowing the first liquid level, the second liquid level, the first time, the second time, and other parameters, the liquid outlet control can be performed on the liquid outlet pipe, so that the liquid finally flowing out of the liquid outlet pipe can reach the volume that the user wants to receive, and the accuracy is high.
The steps shown in fig. 1 will be described below with reference to fig. 2 and 3.
In one embodiment of the present disclosure, the liquid separation instrument 100 includes a liquid outlet pipe 11 and an image sensor 12, the liquid outlet pipe 11 is configured to discharge liquid to a container to be received, and the image sensor 12 is configured to collect a scale image of the container to be received and send the collected scale image to a processor of the liquid separation instrument 100 for processing, so that height data of a first liquid height is determined by the processor according to a target liquid volume in the scale image. To facilitate the capture of the scale image by the image sensor 12, in some embodiments, the image sensor 12 is positioned opposite the sidewall of the container to be received by the dispensing instrument 100.
In some embodiments, the image sensor 12 may be a CCD (Charge Coupled Device) camera, or may be a CMOS (Complementary Metal-Oxide Semiconductor) camera, as long as the image sensor 12 can acquire a scale image.
When the container to be received is placed under the liquid outlet pipe 11 and the image sensor 12 is aligned with the scale marks of the container to be received, the image sensor 12 acquires a first reference image.
It is understood that the first reference image may be a color image or a grayscale image, where when the first reference image is a grayscale image, the first reference image is obtained by performing a graying process on an image segmented from the reference image, that is, the image segmented from the reference image acquired by the camera is a color image. That is, when the first reference image is an image directly segmented from the reference image, the first reference image is a color image; when the first reference image is an image which is divided from the reference image and subjected to graying processing, the first reference image is a grayscale image.
After the processor receives the first reference image sent by the image sensor 12, the processor internally presets a pre-trained image recognition model to perform feature extraction on the first reference image so as to extract a plurality of scale data, such as 20ml, 19ml, 18ml, … …, 0ml and the like. The processor then determines from the target liquid volume a first liquid level corresponding to the volume, for example, level data corresponding to 10 ml.
In an embodiment of the present disclosure, in step 102, the event after the liquid outlet pipe is opened may be detected to trigger a clock recording module in the processor to act, so as to record the current time; similarly, when the liquid outlet pipe is closed, the event can trigger the clock recording module to act so as to record the current moment. Thus, in this manner, a first time when the first spout is open (i.e., begins to dispense liquid) and a second time when the first spout is closed may be determined.
In one embodiment of the present description, referring to fig. 2, the liquid separation apparatus further includes a plurality of laser emitters 13 and a plurality of laser receivers 14 arranged in sequence in the height direction, each laser emitter 13 has a corresponding laser receiver 14 with the same height as the laser emitter 13, and the laser emitters 13 and the laser receivers 14 are arranged on both sides of the container 200 to be received. The liquid separation instrument is beneficial to detecting the liquid level height change of the liquid in the container 200 to be received by arranging the laser emitter 13 and the laser receiver 14.
The principle underlying this is: when the liquid is not contained in the container 200 to be received, the intensity of the laser light received by each laser receiver 14 is a constant value, the liquid level rises continuously as the liquid is poured into the container 200 to be received, and the laser light emitted by the laser emitter 13 below the liquid level is partially refracted or reflected when entering the liquid, so that the intensity of the laser light received by the laser receivers 14 below the liquid level is also reduced.
Therefore, it is possible to determine whether the liquid level in the container to be received 200 reaches the preset level threshold by detecting the intensity of the laser light received by the laser receiver 14 at the preset level threshold. Further, if the liquid level in the container 200 to be received reaches the preset level threshold, the processor of the liquid separation instrument is triggered to act to close the liquid outlet pipe 11, and the clock recording module is triggered to record the moment as the second moment.
Because of the spacing between spout 11 and container 200, when spout 11 is closed, a portion of the liquid that remains in the air (i.e., the liquid that has exited the outlet of spout 11 and has not entered container 200) has not entered container 200. When the flow rate of the liquid outlet pipe 11 is unknown, the liquid is focused, that is, if the liquid outlet accuracy is to be improved by the solution of the embodiment of the present specification, the volume of the liquid needs to be taken into consideration. In particular, if the target liquid volume is smaller, the influence of the volume of the portion of liquid is larger. Therefore, when the portion of the liquid completely enters the container to be received 200, for example, when the liquid level of the liquid in the container to be received 200 is stabilized, the current liquid level is measured.
In an embodiment of the present specification, the step 104 may specifically include the following steps:
step one, acquiring a scale image of a container to be received when the liquid level of liquid in the container is stable.
In this step, a scale image of the container to be received when the liquid level of the liquid therein is stable may be collected using the image sensor 12, and the scale image may be used as a second reference image. The rest of the description of the image sensor 12 and the second reference image is similar to the above description, please refer to the above description, and the description is omitted here.
And step two, obtaining the current liquid height according to the scale image, and determining the current liquid height as a second liquid height.
In this step, the image sensor 12 sends the acquired second reference image to the processor, and the processor recognizes the graduation marks of the second reference image by using a preset image recognition model trained in advance. Because the liquid level in the second reference image exists, the second reference image is in a state with higher brightness, or the corresponding gray value is higher, the current liquid height is determined through the liquid level line in the second reference image, and therefore the second liquid height is determined.
In order to improve the detection of the liquid surface lines, the second reference image and the first reference image can be subjected to difference processing to obtain a difference reference image, and the image recognition model recognizes the difference reference image, so that the related noise in the second reference image can be removed, and the recognition precision of the liquid surface lines is improved or the recognition difficulty of the liquid surface lines is reduced.
It should be noted that, referring to fig. 3, the preset height threshold H is smaller than the second liquid height H2Second liquid height H2Less than the first liquid height H1。
The inventor closes the liquid outlet pipe when the liquid reaches a preset height threshold value, so as to obtain a first time difference between a second moment and a first moment, and identifies the height of the second liquid by an image identification method, so that a corresponding relation between the first time difference and the height of the second liquid can be established. Since the first liquid level is also known, it is only necessary to know the moment of closing of the outlet pipe the next time. Therefore, the closing time of the next liquid outlet pipe can be determined according to the first liquid height, the second liquid height, the first time and the second time.
However, it is obviously difficult to determine the closing time of the next liquid outlet tube with an error, that is, the time when the liquid level is stabilized is equivalent to the opening time of the second liquid outlet tube (hereinafter referred to as the third time), that is, the two times are considered to be the same time. Therefore, the acquisition of the opening time of the second liquid outlet pipe can be considered to be increased, for example, a certain time after the liquid level is stabilized is determined as a third time, so that the time when the liquid level is stabilized is not strictly required to be equal to the opening time of the second liquid outlet pipe, and thus, the more accurate closing time of the second liquid outlet pipe can be obtained, and the height of the liquid level stabilization in the container to be received after the second liquid outlet pipe is closed is more approximately equal to the height of the first liquid.
Specifically, in an embodiment of the present specification, step 105 specifically includes the following steps:
opening the liquid outlet pipe at a third moment later than the second moment;
determining a fourth moment according to the first liquid height, the second liquid height, the first moment, the second moment and the third moment;
and when the fourth moment is reached, the liquid outlet pipe is closed again.
Further, referring to fig. 3, in one embodiment of the present description, the fourth time is determined by the following calculation:
Figure BDA0002911553070000091
wherein, T1Characterizing a first moment, T2Characterizing a second moment, T3Characterizing a third moment, T4Characterizing the fourth moment, H1Characterizing the first liquid height, H2The second liquid height is characterized.
That is to say, as long as the clock recording module triggers the processor to send a closing signal to the liquid outlet pipe when the clock reaches the fourth moment, the height of the liquid level in the container to be received after being stabilized can be the first liquid height.
In an embodiment of the present disclosure, after the liquid outlet pipe is closed again when the fourth time is reached in step 105, the method further includes:
determining a time difference according to the first time, the second time, the third time and the fourth time, wherein the time difference is determined by the following calculation formula:
ΔT＝(T2-T1)+(T4-T3)
wherein Δ T represents a time difference;
and (4) carrying out liquid outlet control on the subsequent containers to be received by utilizing the time difference.
In this embodiment, if there are a plurality of containers to be received and the containers to be received have the same specification, when receiving the liquid, the execution main body of the above-described liquid discharge method may further determine the sum of the first time difference between the first time and the second time difference between the third time and the fourth time, that is, the time difference Δ T, after obtaining the fourth time calculated for the first container to be received. Further, after the time difference Δ T is recorded by the execution main body of the liquid discharging method, when liquid discharging control is performed on a subsequent container to be received, only the moment when the liquid discharging pipe corresponding to the current container to be received is opened needs to be known, that is, the liquid discharging pipe is closed after the time difference Δ T, so that the liquid volume in the current container to be received is the target liquid volume.
In summary, according to one or more embodiments of a liquid outlet method for a liquid separation apparatus provided by the present specification, at least the following advantages can be obtained:
1. by knowing the parameters of the first liquid height, the second liquid height, the first time, the second time and the like, the liquid outlet control can be performed on the liquid outlet pipe, so that the liquid finally flowing out of the liquid outlet pipe can reach the volume which is expected to be received by a user, and the accuracy is high.
2. The embodiment of the specification can determine the closing time of the secondary liquid outlet pipe by using a scheme of indirectly calculating the liquid outlet volume, namely determining parameters such as the first liquid height, the second liquid height, the first time and the second time, without considering the change of the configuration of liquid outlet hardware.
3. Whether the liquid height in the container to be received reaches the preset height threshold value or not can be judged by detecting the intensity of laser received by the laser receiver positioned at the preset height threshold value.
4. When the clock reaches the fourth moment, the clock recording module triggers the processor to send a closing signal to the liquid outlet pipe, and the height of the liquid level in the container to be received after the liquid level is stable can be the first liquid height.
5. If a plurality of containers to be received are provided and the containers to be received have the same model specification, when receiving liquid, the execution main body of the liquid outlet method records the time difference delta T and then controls liquid outlet of the subsequent container to be received, only the moment when the liquid outlet pipe corresponding to the current container to be received is opened needs to be known, namely the liquid outlet pipe is closed after the time difference delta T, and the liquid volume in the current container to be received is the target liquid volume.
As shown in fig. 4 and 5, the embodiment of the present specification provides a liquid separation instrument and a liquid outlet device for the liquid separation instrument. The device embodiments may be implemented by software, or by hardware, or by a combination of hardware and software. From a hardware aspect, as shown in fig. 4, a hardware structure diagram of the liquid separation apparatus provided in the embodiment of the present disclosure is shown, in addition to the processor, the memory, the cable interface, and the nonvolatile memory shown in fig. 4, a device in which the apparatus in the embodiment is located may also generally include other hardware, such as a forwarding chip responsible for processing a packet, and the like. Taking a software implementation as an example, as shown in fig. 5, as a logical apparatus, the apparatus is formed by reading a corresponding computer program instruction in a non-volatile memory into a memory by a CPU of a device in which the apparatus is located and running the computer program instruction.
As shown in fig. 5, the liquid outlet device for a liquid separation instrument provided in this embodiment is applied to a liquid separation instrument, and includes:
a first determining module 501 configured to determine a first liquid level of a container to be received corresponding to a target liquid volume;
a second determining module 502 configured to determine a first time when the liquid outlet pipe of the liquid separating instrument starts to flow out liquid;
a judging module 503 configured to judge whether the liquid level in the container to be received reaches a preset level threshold; if yes, closing the liquid outlet pipe, and determining the moment as a second moment;
a third determining module 504 configured to measure a current liquid height when the liquid level of the liquid in the container to be received is stable, and determine the current liquid height as a second liquid height; the preset height threshold is smaller than the second liquid height, and the second liquid height is smaller than the first liquid height;
and the liquid outlet control module 505 is configured to perform liquid outlet control on the liquid outlet pipe again according to the first liquid height, the second liquid height, the first time and the second time.
In this embodiment, the first determining module 501 may be configured to perform step 101 in the above-described method embodiment, the second determining module 502 may be configured to perform step 102 in the above-described method embodiment, the determining module 503 may be configured to perform step 103 in the above-described method embodiment, the third determining module 504 may be configured to perform step 104 in the above-described method embodiment, and the liquid outlet control module 505 may be configured to perform step 105 in the above-described method embodiment.
In an embodiment of the present specification, the first determining module 501 is configured to perform the following processes:
collecting a scale image of a container to be received;
a first liquid level is determined based on the target liquid volume of the container to be received and the scale image.
In one embodiment of the present specification, the liquid separation apparatus includes a plurality of laser emitters and a plurality of laser receivers arranged in sequence in a height direction, the laser emitters and the laser receivers being disposed on both sides of the container to be received;
the determining module 503 is configured to perform the following processes:
and judging whether the height of the liquid in the container to be received reaches a preset height threshold value or not according to the intensity of the laser received by the laser receiver positioned at the preset height threshold value.
In an embodiment of the present specification, the third determining module 504 is configured to perform the following processes:
acquiring a scale image of the container to be received when the liquid level of the liquid in the container to be received is stable;
and obtaining the current liquid height according to the scale image, and determining the current liquid height as a second liquid height.
In an embodiment of the present specification, the liquid outlet control module 505 is configured to perform the following operations:
opening the liquid outlet pipe at a third moment later than the second moment;
determining a fourth moment according to the first liquid height, the second liquid height, the first moment, the second moment and the third moment;
and when the fourth moment is reached, closing the liquid outlet pipe again.
In an embodiment of the present specification, the liquid outlet control module 505, when executing the determining of the fourth time according to the first liquid level, the second liquid level, the first time, the second time and the third time, is configured to execute the following processing:
determining the fourth time by:
Figure BDA0002911553070000131
wherein, T1Characterizing said first moment, T2Characterizing said second moment, T3Characterizing said third moment, T4Characterizing said fourth moment of time, H1Characterizing the first liquid height, H2Characterizing the second liquid height.
In one embodiment of the present specification, further comprising:
a time difference determination module to perform the following operations:
determining a time difference according to the first time, the second time, the third time and the fourth time, wherein the time difference is determined by the following calculation formula:
ΔT＝(T2-T1)+(T4-T3)
wherein Δ T characterizes the time difference;
and performing liquid outlet control on the subsequent container to be received by utilizing the time difference.
It is understood that the structure illustrated in the embodiments of the present specification does not specifically limit the liquid outlet device for the liquid separation apparatus. In other embodiments of the present description, the dispensing device for a dispensing apparatus may include more or fewer components than those shown, or some components may be combined, some components may be separated, or a different arrangement of components may be used. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
For the information interaction, execution process, and other contents between the modules in the apparatus, the specific contents may refer to the description in the method embodiment of the present specification because the same concept is based on the method embodiment of the present specification, and are not described herein again.
An embodiment of the present specification further provides a liquid separation instrument, including: at least one memory and at least one processor;
the at least one memory to store a machine readable program;
the at least one processor is used for calling the machine readable program to execute the liquid outlet method for the liquid separating instrument in any embodiment of the specification.
Embodiments of the present disclosure also provide a computer-readable medium storing instructions for causing a computer to perform a dispensing method for a dispensing instrument as described herein. Specifically, a method or an apparatus equipped with a storage medium on which a software program code that realizes the functions of any of the above-described embodiments is stored may be provided, and a computer (or a CPU or MPU) of the method or the apparatus is caused to read out and execute the program code stored in the storage medium.
In this case, the program code itself read from the storage medium can realize the functions of any of the above-described embodiments, and thus the program code and the storage medium storing the program code constitute a part of this specification.
Examples of the storage medium for supplying the program code include a floppy disk, a hard disk, a magneto-optical disk, an optical disk (e.g., CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD + RW), a magnetic tape, a nonvolatile memory card, and a ROM. Alternatively, the program code may be downloaded from a server computer via a communications network.
Further, it should be clear that the functions of any one of the above-described embodiments can be implemented not only by executing the program code read out by the computer, but also by performing a part or all of the actual operations by an operation method or the like operating on the computer based on instructions of the program code.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The above-mentioned embodiments, objects, technical solutions and advantages of the present specification are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present specification, and are not intended to limit the scope of the present specification, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present specification should be included in the scope of the present specification.

Claims (10)

1. The liquid outlet method for the liquid separation instrument is characterized by being applied to the liquid separation instrument and comprising the following steps of:
determining a first liquid level of a container to be received corresponding to a target liquid volume;
determining a first moment when a liquid outlet pipe of the liquid separation instrument starts to flow out liquid;
judging whether the height of the liquid in the container to be received reaches a preset height threshold value or not;
if yes, closing the liquid outlet pipe, and determining the moment as a second moment;
when the liquid level of the liquid in the container to be received is stable, measuring the current liquid height, and determining the current liquid height as a second liquid height; the preset height threshold is smaller than the second liquid height, and the second liquid height is smaller than the first liquid height;
and controlling the liquid outlet of the liquid outlet pipe again according to the first liquid height, the second liquid height, the first moment and the second moment.
2. The method of claim 1, wherein determining a first liquid level of a container to be received corresponding to a target liquid volume comprises:
collecting a scale image of a container to be received;
a first liquid level is determined based on the target liquid volume of the container to be received and the scale image.
3. The method according to claim 1, characterized in that the liquid separating instrument comprises a plurality of laser emitters and a plurality of laser receivers arranged in sequence in the height direction, the laser emitters and the laser receivers being arranged on both sides of the container to be received;
the judging whether the height of the liquid in the container to be received reaches a preset height threshold value comprises the following steps:
and judging whether the height of the liquid in the container to be received reaches a preset height threshold value or not according to the intensity of the laser received by the laser receiver positioned at the preset height threshold value.
4. The method of claim 1, wherein measuring a current liquid level and determining the current liquid level as a second liquid level when the level of liquid in the container to be received is stable comprises:
acquiring a scale image of the container to be received when the liquid level of the liquid in the container to be received is stable;
and obtaining the current liquid height according to the scale image, and determining the current liquid height as a second liquid height.
5. The method of any of claims 1-4, wherein said re-tapping said drain according to said first liquid level, said second liquid level, said first time, and said second time comprises:
opening the liquid outlet pipe at a third moment later than the second moment;
determining a fourth moment according to the first liquid height, the second liquid height, the first moment, the second moment and the third moment;
and when the fourth moment is reached, closing the liquid outlet pipe again.
6. The method of claim 5, wherein determining a fourth time based on the first liquid level, the second liquid level, the first time, the second time, and the third time comprises:
determining the fourth time by:
Figure FDA0002911553060000021
wherein, T1Characterizing said first moment, T2Characterizing said second moment, T3Characterizing said third moment, T4Characterizing said fourth moment of time, H1Characterizing the first liquid height, H2Characterizing the second liquid height.
7. The method of any of claim 6, further comprising, after said re-closing said drain upon reaching said fourth time:
determining a time difference according to the first time, the second time, the third time and the fourth time, wherein the time difference is determined by the following calculation formula:
ΔT＝(T2-T1)+(T4-T3)
wherein Δ T characterizes the time difference;
and performing liquid outlet control on the subsequent container to be received by utilizing the time difference.
8. A go out liquid device for dividing liquid instrument, its characterized in that is applied to and divides in the liquid instrument, includes:
a first determination module configured to determine a first liquid level of a container to be received corresponding to a target liquid volume;
the second determination module is configured to determine a first moment when the liquid outlet pipe of the liquid separation instrument starts to flow out liquid;
the judging module is configured to judge whether the height of the liquid in the container to be received reaches a preset height threshold value; if yes, closing the liquid outlet pipe, and determining the moment as a second moment;
the third determining module is configured to measure the current liquid height when the liquid level of the liquid in the container to be received is stable, and determine the current liquid height as the second liquid height; the preset height threshold is smaller than the second liquid height, and the second liquid height is smaller than the first liquid height;
and the liquid outlet control module is configured to perform liquid outlet control on the liquid outlet pipe again according to the first liquid height, the second liquid height, the first time and the second time.
9. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, cause the processor to perform the method of any of claims 1 to 7.
10. Divide liquid instrument, its characterized in that includes: at least one memory and at least one processor;
the at least one memory to store a machine readable program;
the at least one processor, configured to invoke the machine readable program to perform the method of any of claims 1 to 7.
CN202110088405.5A 2021-01-22 2021-01-22 Liquid discharging method and device for liquid separating instrument Pending CN112915011A (en)

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