CN112922819B - Method for automatically measuring compensation coefficient of peristaltic pump - Google Patents
Method for automatically measuring compensation coefficient of peristaltic pump Download PDFInfo
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- CN112922819B CN112922819B CN202110120020.2A CN202110120020A CN112922819B CN 112922819 B CN112922819 B CN 112922819B CN 202110120020 A CN202110120020 A CN 202110120020A CN 112922819 B CN112922819 B CN 112922819B
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- peristaltic pump
- compensation coefficient
- optical fiber
- main controller
- barrel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a method for automatically measuring a compensation coefficient by a peristaltic pump, which comprises the following steps of firstly, symmetrically placing two first optical fiber sensors at two sides of the bottom of a reagent bottle, and symmetrically placing two second optical fiber sensors at two sides of a bottle opening; then the main controller reads the initial compensation coefficient of the peristaltic pump; then, the main controller calculates the walking steps of the peristaltic pump according to the current initial compensation coefficient and controls the stock solution barrel to pump the reagent into the reagent bottle; then whether the barrel is empty is detected, if the barrel is not empty, the peristaltic pump continues to pump liquid, and if the steps of the peristaltic pump are finished and the second optical fiber sensor is not triggered, the main controller increases the initial compensation coefficient; if the steps of the peristaltic pump are not finished and the second optical fiber sensor is triggered, the main controller reduces the initial compensation coefficient; and when the steps of the peristaltic pump are finished and the second optical fiber sensor is triggered, judging that the reagent reaches the preset liquid level position, and finally storing the current compensation coefficient. The method has the characteristics of short time, high speed, simple method and high automation degree.
Description
Technical Field
The invention relates to the technical field of reagent constant volume, in particular to a method for automatically measuring a compensation coefficient by a peristaltic pump.
Background
The peristaltic pump is used on a large scale in equipment in a laboratory due to the characteristics of high liquid adding speed, high precision and low cost, the final liquid outlet precision can be influenced due to the aging problem of a hose of the peristaltic pump, and the common peristaltic pump does not have the function of automatic compensation, so that manual liquid adding compensation is required to be carried out on the peristaltic pump before the peristaltic pump is used by experimenters, the workload of the experimenters is greatly increased, and the application range of the peristaltic pump is also severely restricted.
Disclosure of Invention
The invention aims to provide a method for automatically measuring a compensation coefficient of a peristaltic pump.
In order to achieve the above purpose, the solution of the invention is: a method for automatically determining a compensation factor for a peristaltic pump, comprising the steps of:
s1 preparation before work: the main controller is connected with the first optical fiber sensors, the second optical fiber sensors and the peristaltic pump, the two first optical fiber sensors are symmetrically arranged on two sides of the bottom of the reagent bottle, the two second optical fiber sensors are symmetrically arranged on two sides of the opening of the reagent bottle, the peristaltic pump is connected with the raw liquid barrel, and the raw liquid barrel is connected with the reagent bottle;
s2 power-on initialization: the main controller is electrified, and the main controller reads the initial compensation coefficient of the peristaltic pump;
s3 peristaltic pump fluid: the main controller calculates the walking steps of the peristaltic pump according to the current initial compensation coefficient, and then controls the peristaltic pump to pump the reagent from the stock solution barrel to the reagent bottle;
and S4 empty barrel detection: the main controller obtains the current pump liquid speed of the peristaltic pump according to the walking steps of the peristaltic pump, further obtains the current trigger time of the first optical fiber sensor according to the current pump liquid speed of the peristaltic pump, if the first optical fiber sensor does not trigger in the trigger time, the reagent is not in the reagent bottle, the original liquid barrel is judged to be an empty barrel, the working process is stopped, an alarm is given on a panel of the main controller, and if the original liquid barrel is not in the empty barrel, the next step is carried out;
calibrating a compensation coefficient by S5: the peristaltic pump continues to pump liquid, whether the second optical fiber sensor is triggered or not is judged at the moment, if the peristaltic pump finishes steps and the second optical fiber sensor is still not triggered, the initial compensation coefficient is smaller, the main controller increases the initial compensation coefficient; if the step number of the peristaltic pump is not finished and the second optical fiber sensor is triggered, the initial compensation coefficient is larger, and then the main controller reduces the initial compensation coefficient;
s6 new compensation factor save: when the steps of the peristaltic pump are finished and the second optical fiber sensor is triggered, the reagent is judged to reach the preset liquid level position, namely the required measured volume is reached, the current compensation coefficient is stored as a new compensation coefficient to the main controller, and the new compensation coefficient covers the initial compensation coefficient.
Furthermore, the main controller is connected with a human-computer interface through serial port communication.
After the scheme is adopted, the invention has the beneficial effects that:
1. more accurate, the compensation coefficient is determined by adopting an optical fiber measurement automatic calculation mode instead of manual work, namely, physical compensation is converted into digital compensation, so that the compensation effect is more accurate;
2. the adaptability is strong, different reagent volumes need different compensation coefficients, and different compensation coefficients can meet different reagent volume requirements only by one method;
3. the measuring efficiency is high, the working steps of the method are simple, convenient and quick, and the reaction speed of the sensor is high, so the whole working efficiency is extremely high;
4. in the prior art, the final liquid outlet precision is influenced by the structural problem of hose aging, but the hose does not need to be improved or the peristaltic pump does not need to be replaced, and the method can still use the common peristaltic pump to solve the structural problem from the method perspective, so that the enterprise burden is reduced, and the replacement cost is saved.
Drawings
FIG. 1 is a system configuration diagram according to an embodiment of the present invention;
fig. 2 is a flow chart of an embodiment of the present invention.
Description of reference numerals:
the reagent bottle comprises a reagent bottle 1, a first optical fiber sensor 2, a second optical fiber sensor 3, a main controller 4, a human-computer interface 5, a peristaltic pump 6 and a stock solution barrel 7.
Detailed Description
The invention is described in detail below with reference to fig. 1 and 2 and the specific embodiments.
The invention provides a method for automatically measuring a compensation coefficient by a peristaltic pump, and relates to a reagent constant volume system, wherein the reagent constant volume system comprises a reagent bottle 1, a first optical fiber sensor 2, a second optical fiber sensor 3, a main controller 4, a peristaltic pump 6, a stock solution barrel 7 and a human-computer interface 5, and the method comprises the following steps:
s1 preparation before work: as shown in fig. 1, a main controller 4 is connected with first optical fiber sensors 2, second optical fiber sensors 3 and a peristaltic pump 6, the two first optical fiber sensors 2 are symmetrically arranged on two sides of the bottom of a reagent bottle 1, the two second optical fiber sensors 3 are symmetrically arranged on two sides of the bottle mouth of the reagent bottle 1, the peristaltic pump 6 is connected with a stock solution barrel 7, and the stock solution barrel 7 is connected with the reagent bottle 1;
s2 power-on initialization: referring to fig. 2, the main controller 4 is powered on, and the main controller 4 reads the initial compensation coefficient of the peristaltic pump 6, and sets the initial compensation coefficient as P;
s3 peristaltic pump 6 pump: the main controller 4 calculates the walking steps of the peristaltic pump 6 according to the current initial compensation coefficient P, and then controls the peristaltic pump 6 to pump the reagent from the stock solution barrel 7 to the reagent bottle 1;
and S4 empty barrel detection: the main controller 4 obtains the current pump liquid speed of the peristaltic pump 6 according to the walking steps of the peristaltic pump 6, further obtains the current trigger time of the first optical fiber sensor 2 according to the current pump liquid speed of the peristaltic pump 6, if the first optical fiber sensor 2 is not triggered in the trigger time, the reagent is not in the reagent bottle 1, the raw liquid barrel 7 is judged to be an empty barrel, the working process is stopped, an alarm is given on a panel of the main controller 4, and if the raw liquid barrel is not in the empty barrel, the next step is carried out;
calibrating a compensation coefficient by S5: the peristaltic pump 6 continues to pump liquid, whether the second optical fiber sensor 3 is triggered or not is judged at the moment, if the peristaltic pump 6 finishes the steps and the second optical fiber sensor 3 is still not triggered, the initial compensation coefficient P is small, the main controller 4 increases the initial compensation coefficient, and the compensation coefficient is P +; if the peristaltic pump has not finished 6 steps and the second optical fiber sensor 3 is triggered, the initial compensation coefficient P is larger, the main controller 4 reduces the initial compensation coefficient, and the compensation coefficient is P-;
it should be noted that the compensation coefficient P + or P-increased or decreased for the first time in the step may not be the final value, and the main controller may operate the step for multiple times by setting the operation times to calibrate, so that the compensation coefficient obtained in the step approaches the ideal value;
s6 new compensation factor save: when the peristaltic pump 6 steps are completed and the second optical fiber sensor 3 is triggered, the reagent is judged to reach the preset liquid level position, namely the required measured volume is reached, the current compensation coefficient is stored as a new compensation coefficient to the main controller 4, and the new compensation coefficient covers the initial compensation coefficient.
The main controller 4 is connected with a human-computer interface 5 through serial port communication, and a user can interact with the main controller 4 on the human-computer interface 5 in real time.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present invention, and all equivalent changes made in the design key point of the present invention fall within the protection scope of the present invention.
Claims (2)
1. A method for automatically determining a compensation coefficient of a peristaltic pump is characterized by comprising the following steps:
s1 preparation before work: the main controller is connected with the first optical fiber sensors, the second optical fiber sensors and the peristaltic pump, the two first optical fiber sensors are symmetrically arranged on two sides of the bottom of the reagent bottle, the two second optical fiber sensors are symmetrically arranged on two sides of the opening of the reagent bottle, the peristaltic pump is connected with the stock solution barrel, and the stock solution barrel is connected with the reagent bottle;
s2 power-on initialization: the main controller is electrified, and the main controller reads the initial compensation coefficient of the peristaltic pump;
s3 peristaltic pump fluid: the main controller calculates the walking steps of the peristaltic pump according to the current initial compensation coefficient, and then controls the peristaltic pump to pump the reagent from the stock solution barrel to the reagent bottle;
and S4 empty barrel detection: the main controller obtains the current pump liquid speed of the peristaltic pump according to the walking steps of the peristaltic pump, further obtains the current trigger time of the first optical fiber sensor according to the current pump liquid speed of the peristaltic pump, if the first optical fiber sensor does not trigger in the trigger time, the reagent is not in the reagent bottle, the original liquid barrel is judged to be an empty barrel, the working process is stopped, an alarm is given on a panel of the main controller, and if the original liquid barrel is not in the empty barrel, the next step is carried out;
calibrating a compensation coefficient by S5: the peristaltic pump continues to pump liquid, whether the second optical fiber sensor is triggered or not is judged at the moment, if the peristaltic pump finishes steps and the second optical fiber sensor is still not triggered, the initial compensation coefficient is smaller, the main controller increases the initial compensation coefficient; if the step number of the peristaltic pump is not finished and the second optical fiber sensor is triggered, the initial compensation coefficient is larger, and then the main controller reduces the initial compensation coefficient;
s6 new compensation factor save: when the steps of the peristaltic pump are finished and the second optical fiber sensor is triggered, the reagent is judged to reach the preset liquid level position, namely the required measured volume is reached, the current compensation coefficient is stored as a new compensation coefficient to the main controller, and the new compensation coefficient covers the initial compensation coefficient.
2. A method for automatically determining a compensation factor for a peristaltic pump as set forth in claim 1, wherein: the main controller is connected with a human-computer interface through serial port communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110120020.2A CN112922819B (en) | 2021-01-28 | 2021-01-28 | Method for automatically measuring compensation coefficient of peristaltic pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110120020.2A CN112922819B (en) | 2021-01-28 | 2021-01-28 | Method for automatically measuring compensation coefficient of peristaltic pump |
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| CN112922819A CN112922819A (en) | 2021-06-08 |
| CN112922819B true CN112922819B (en) | 2022-08-09 |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4845487A (en) * | 1987-07-20 | 1989-07-04 | Frantz Medical Development Ltd. | Pump system for enteral/parenteral fluid control and delivery |
| ATE115866T1 (en) * | 1987-06-16 | 1995-01-15 | Frantz Medical Dev Ltd | PUMP, ESPECIALLY FOR CONTROL OF ENTERAL FLUID, PUMP CASSETTE, AND OPERATING PROCEDURES. |
| US8105282B2 (en) * | 2007-07-13 | 2012-01-31 | Iradimed Corporation | System and method for communication with an infusion device |
| CN102764463B (en) * | 2012-07-26 | 2013-11-20 | 深圳圣诺医疗设备有限公司 | Infusion pump pulse compensation method and system |
| CN105233363B (en) * | 2015-08-28 | 2018-12-25 | 重庆工商职业学院 | high precision peristaltic pump control method |
| CN108331731B (en) * | 2017-01-19 | 2020-08-21 | 达尔生技股份有限公司 | fluid delivery device |
| CN107899111B (en) * | 2017-11-07 | 2020-08-28 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | Injection pump control method and device, computer equipment and storage medium |
| CN108939209B (en) * | 2018-06-05 | 2021-07-09 | 浙江迈帝康医疗器械有限公司 | Intelligent infusion pump |
| EP3663578B1 (en) * | 2018-12-06 | 2021-10-06 | Riprup Company S.A. | Micrometering pump |
| EP3715632B9 (en) * | 2019-03-26 | 2023-07-12 | Grifols, S.A. | Method for calibrating a peristaltic pump, method for dispensing a quantity of liquid by means of a peristaltic pump and device for producing sterile preparations that can execute said methods |
| CN110133544B (en) * | 2019-05-14 | 2021-03-19 | 中国科学院上海微系统与信息技术研究所 | Obtaining method, terminal and storage medium of aviation superconducting full tensor magnetic compensation coefficient |
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Denomination of invention: A method for automatically measuring compensation coefficient of peristaltic pump Effective date of registration: 20230320 Granted publication date: 20220809 Pledgee: Bank of China Limited Xiamen hi tech Park sub branch Pledgor: Ruike Group (Xiamen) Co.,Ltd. Registration number: Y2023980035527 |