CN105487561A - Peristaltic pump flow control system based on LabVIEW fuzzy PID controller - Google Patents
Peristaltic pump flow control system based on LabVIEW fuzzy PID controller Download PDFInfo
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- CN105487561A CN105487561A CN201610051527.6A CN201610051527A CN105487561A CN 105487561 A CN105487561 A CN 105487561A CN 201610051527 A CN201610051527 A CN 201610051527A CN 105487561 A CN105487561 A CN 105487561A
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- peristaltic pump
- flow
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0623—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the set value given to the control element
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- Automation & Control Theory (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention relates to a peristaltic pump flow control system based on a LabVIEW fuzzy PID controller. The peristaltic pump flow control system comprises a drive circuit, a peristaltic pump, a flow sensor, a data collection card, an A/D converting circuit, a fuzzy PID controller, a D/A converting circuit, a single-chip microcomputer, and a display screen. The output end of the drive circuit is electrically connected with the peristaltic pump. The output end of the peristaltic pump is connected with the input end of the flow sensor. The output end of the flow sensor is connected with the input end of the data collection card. The output end of the data collection card is connected with the input end of the A/D converting circuit. The output end of the A/D converting circuit is connected with the input end of the fuzzy PID controller. The output end of the fuzzy PID controller is connected with the input end of the D/A converting circuit. The output end of the D/A converting circuit is connected with the input end of the single-chip microcomputer. The output end of the single-chip microcomputer is connected with the drive circuit. The fuzzy PID controller is connected with the display screen through a line. A LabVIEW software system is embedded into the fuzzy PID controller. The peristaltic pump flow control system can improve a flow control effect, the overshoot amount of the system is obviously reduced, the flow control precision is obviously improved, and a defective rate is obviously reduced.
Description
[technical field]
The present invention relates to peristaltic pump flow control technique field, specifically a kind of peristaltic pump flow control system based on LabVIEW fuzzy controller.
[background technology]
Flow is the key factor primarily controlled in the industry such as chemical industry, pharmaceutical engineering and material laboratory, the uninterrupted and the speed that drip reagent determine the net result produced and test, so must regulate and control the precision of flow in production and processing or experimentation.Traditional peristaltic pump control method mainly adopts Mechanical course, can not realize the quantified controlling of flow velocity and size, more can not make exporting more accurately, thus produces for scientific research and enterprise and have significant limitation.Therefore, if a kind of the peristaltic pump flow control system and the method that significantly improve flow control accuracy can be provided, will have very important significance.
[summary of the invention]
Object of the present invention is exactly will solve above-mentioned deficiency and provide a kind of peristaltic pump flow control system based on LabVIEW fuzzy controller, the effect of flow control can be improved, and system overshoot obviously reduces, flow control accuracy significantly improves, defect rate obviously reduces, and reaches the beneficial effect of control reliability of improving the quality of products, improve.
Design a kind of peristaltic pump flow control system based on LabVIEW fuzzy controller for achieving the above object, comprise driving circuit, peristaltic pump, flow sensor, data collecting card, A/D change-over circuit, fuzzy controller, D/A change-over circuit, single-chip microcomputer and display screen, the output terminal of described driving circuit is electrically connected with peristaltic pump, the input end of described wriggling delivery side of pump connection traffic sensor, the input end of the output terminal connection data capture card of described flow sensor, the output terminal of described data collecting card is connected with the input end of A/D change-over circuit, the output terminal of described A/D change-over circuit connects the input end of fuzzy controller, the output terminal of described fuzzy controller connects the input end of D/A change-over circuit, the output terminal of described D/A change-over circuit connects single-chip microcomputer input end, described single-chip microcomputer output terminal connects driving circuit, described fuzzy controller is by connection display screen, described fuzzy controller is embedded with LabVIEW software systems, described driving circuit is for controlling the working condition of peristaltic pump, described flow sensor detects the size of flow for completing, described data collecting card is for being inserted in the PCI slot of controller, complete collection and the monitoring of flow signal, described A/D change-over circuit has been used for simulating signal and has converted digital signal to, described fuzzy controller is for completing the fusion of flow signal, analysis and treament, described display screen is for completing contrast and the display of image data, described D/A change-over circuit has been used for digital signal dress and has changed simulating signal into, described single-chip microcomputer is for completing the control to driving circuit.
Described flow sensor comprises photo-electric flow speed sensor and photo-electric uninterrupted sensor.
Described peristaltic pump adopts stepping peristaltic pump.
Described data collecting card adopts the PCI-3363 capture card based on pci bus.
Described A/D change-over circuit adopts AD7810 chip.
Described D/A change-over circuit adopts AD1680 chip.
Described single-chip microcomputer adopts Stc89c51 single-chip microcomputer.
Based on the control method of the peristaltic pump flow control system of LabVIEW fuzzy controller, should comprise the following steps:
1) if setting peristaltic pump flow setting value is Q
s;
2) flow sensor is Q according to the flow feedback of reality to data collecting card flow value
f, be the control object of flow control system;
3) u is the knots modification of flow-control equipment, i.e. the rotating speed knots modification of motor in peristaltic pump, determines the flow of liquid;
4) the two-dimentional input variable of fuzzy controller is the deviation e of flow setting value and flow feedback value, and the change ec of deviation, and program compares set-point and value of feedback, and accurately controls flow by LabVIEW Fuzzy PID.
The present invention compared with the existing technology, novel structure, simply, reasonable in design, by being provided with the driving circuit connected successively, peristaltic pump, flow sensor, data collecting card, A/D change-over circuit, fuzzy controller, D/A change-over circuit, single-chip microcomputer, and by fuzzy controller by connection display screen, fuzzy controller is made to be embedded with LabVIEW software systems, utilize peristaltic pump that liquid is sent to flow sensor, the size of flow sensor Real-Time Monitoring fluid flow, the correlation parameter signals such as speed are sent to data collecting card, A/D change-over circuit converts simulating signal to digital signal and is sent to fuzzy controller, to carry out the fusion of flow signal, analysis and treament, thus the effect of flow control can be improved, and system overshoot obviously reduces, flow control accuracy significantly improves, defect rate obviously reduces, reach and improve the quality of products, improve the beneficial effect controlling reliability, be worthy of popularization.
[accompanying drawing explanation]
Fig. 1 is theory diagram of the present invention;
Fig. 2 is fuzzy-adaptation PID control block diagram of the present invention;
In figure, 1, driving circuit 2, peristaltic pump 3, flow sensor 4, data collecting card 5, A/D change-over circuit 6, fuzzy controller 7, display screen 8, D/A change-over circuit 9, single-chip microcomputer.
[embodiment]
Below in conjunction with accompanying drawing, following further illustrating is done to the present invention:
As shown in drawings, the present invention includes: driving circuit, peristaltic pump, flow sensor, data collecting card, A/D change-over circuit, fuzzy controller, D/A change-over circuit, single-chip microcomputer and display screen, the output terminal of driving circuit is electrically connected with peristaltic pump, the input end of wriggling delivery side of pump connection traffic sensor, the input end of the output terminal connection data capture card of flow sensor, the output terminal of data collecting card is connected with the input end of A/D change-over circuit, the output terminal of A/D change-over circuit connects the input end of fuzzy controller, the output terminal of fuzzy controller connects the input end of D/A change-over circuit, the output terminal of D/A change-over circuit connects single-chip microcomputer input end, single-chip microcomputer output terminal connects driving circuit, fuzzy controller is by connection display screen, fuzzy controller is embedded with LabVIEW software systems, driving circuit is for controlling the working condition of peristaltic pump, flow sensor detects the size of flow for completing, data collecting card is for being inserted in the PCI slot of controller, complete collection and the monitoring of flow signal, A/D change-over circuit has been used for simulating signal and has converted digital signal to, fuzzy controller is for completing the fusion of flow signal, analysis and treament, display screen is for completing contrast and the display of image data, D/A change-over circuit has been used for digital signal dress and has changed simulating signal into, single-chip microcomputer is for completing the control to driving circuit.
In the present invention, flow sensor comprises photo-electric flow speed sensor and photo-electric uninterrupted sensor, peristaltic pump adopts stepping peristaltic pump, data collecting card adopts the PCI-3363 capture card based on pci bus, A/D change-over circuit adopts AD7810 chip, D/A change-over circuit adopts AD1680 chip, and single-chip microcomputer adopts Stc89c51 single-chip microcomputer.
Job step of the present invention is as follows: if setting peristaltic pump flow setting value is Q
s; Flowmeter is Q according to the flow feedback of reality to DAQ flow value
f, be the control object of flow control system; U is the knots modification (i.e. the rotating speed knots modification of motor in peristaltic pump, determines the flow of liquid) of flow-control equipment; The two-dimentional input variable of fuzzy controller is the deviation e of flow setting value and flow feedback value, and the change ec of deviation, and program compares set-point and value of feedback, and is realized by Fuzzy PID or reach the requirement accurately controlling flow.When uninterrupted and speed exceed set threshold values time, described fuzzy controller 6 sends signal instruction immediately and transmits described D/A change-over circuit 8 and described single-chip microcomputer 9 successively, described single-chip microcomputer issues instructions to described driving circuit 9, controls the working condition of driving circuit.Thus keep peristaltic pump to keep stable duty in real time.
The present invention, by the restriction of above-mentioned embodiment, change, the modification done, substitutes, combines, simplifies under other any does not deviate from Spirit Essence of the present invention and principle, all should be equivalent substitute mode, is included within protection scope of the present invention.
Claims (8)
1. the peristaltic pump flow control system based on LabVIEW fuzzy controller, it is characterized in that: comprise driving circuit, peristaltic pump, flow sensor, data collecting card, A/D change-over circuit, fuzzy controller, D/A change-over circuit, single-chip microcomputer and display screen, the output terminal of described driving circuit is electrically connected with peristaltic pump, the input end of described wriggling delivery side of pump connection traffic sensor, the input end of the output terminal connection data capture card of described flow sensor, the output terminal of described data collecting card is connected with the input end of A/D change-over circuit, the output terminal of described A/D change-over circuit connects the input end of fuzzy controller, the output terminal of described fuzzy controller connects the input end of D/A change-over circuit, the output terminal of described D/A change-over circuit connects single-chip microcomputer input end, described single-chip microcomputer output terminal connects driving circuit, described fuzzy controller is by connection display screen, described fuzzy controller is embedded with LabVIEW software systems, described driving circuit is for controlling the working condition of peristaltic pump, described flow sensor detects the size of flow for completing, described data collecting card is for being inserted in the PCI slot of controller, complete collection and the monitoring of flow signal, described A/D change-over circuit has been used for simulating signal and has converted digital signal to, described fuzzy controller is for completing the fusion of flow signal, analysis and treament, described display screen is for completing contrast and the display of image data, described D/A change-over circuit has been used for digital signal dress and has changed simulating signal into, described single-chip microcomputer is for completing the control to driving circuit.
2., as claimed in claim 1 based on the peristaltic pump flow control system of LabVIEW fuzzy controller, it is characterized in that: described flow sensor comprises photo-electric flow speed sensor and photo-electric uninterrupted sensor.
3. as claimed in claim 2 based on the peristaltic pump flow control system of LabVIEW fuzzy controller, it is characterized in that: described peristaltic pump adopts stepping peristaltic pump.
4. as claimed in claim 3 based on the peristaltic pump flow control system of LabVIEW fuzzy controller, it is characterized in that: described data collecting card adopts the PCI-3363 capture card based on pci bus.
5. as claimed in claim 4 based on the peristaltic pump flow control system of LabVIEW fuzzy controller, it is characterized in that: described A/D change-over circuit adopts AD7810 chip.
6. as claimed in claim 5 based on the peristaltic pump flow control system of LabVIEW fuzzy controller, it is characterized in that: described D/A change-over circuit adopts AD1680 chip.
7. as claimed in claim 6 based on the peristaltic pump flow control system of LabVIEW fuzzy controller, it is characterized in that: described single-chip microcomputer adopts Stc89c51 single-chip microcomputer.
8. a control method for the peristaltic pump flow control system based on LabVIEW fuzzy controller according to any one of claim 1 to 7, is characterized in that, comprise the following steps:
1) if setting peristaltic pump flow setting value is Q
s;
2) flow sensor is Q according to the flow feedback of reality to data collecting card flow value
f, be the control object of flow control system;
3) u is the knots modification of flow-control equipment, i.e. the rotating speed knots modification of motor in peristaltic pump, determines the flow of liquid;
4) the two-dimentional input variable of fuzzy controller is the deviation e of flow setting value and flow feedback value, and the change ec of deviation, and program compares set-point and value of feedback, and accurately controls flow by LabVIEW Fuzzy PID.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610051527.6A CN105487561A (en) | 2016-01-26 | 2016-01-26 | Peristaltic pump flow control system based on LabVIEW fuzzy PID controller |
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| CN201610051527.6A CN105487561A (en) | 2016-01-26 | 2016-01-26 | Peristaltic pump flow control system based on LabVIEW fuzzy PID controller |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168209A (en) * | 2016-08-23 | 2016-11-30 | 保定雷弗流体科技有限公司 | A kind of intelligent flow bearing calibration for peristaltic pump and system |
| CN107191364A (en) * | 2017-07-21 | 2017-09-22 | 上海艾瑞德生物科技有限公司 | A kind of peristaltic pump fluid path scaling system and scaling method |
| CN108427403A (en) * | 2018-04-04 | 2018-08-21 | 中国航发湖南动力机械研究所 | The test run system and control method of aero-engine particle separator flow control |
| CN109219368A (en) * | 2016-06-10 | 2019-01-15 | 莱雅公司 | Wriggling hand-held cosmetic distribution system |
| CN112460039A (en) * | 2020-11-23 | 2021-03-09 | 江苏大学 | Device for monitoring operating condition of vane pump and adjusting method |
| CN112505245A (en) * | 2020-11-11 | 2021-03-16 | 山西科致成科技有限公司 | Multi-path standard gas flow control device for detecting mine gas sensor |
| CN112859586A (en) * | 2021-01-12 | 2021-05-28 | 东北大学 | Diaphragm pump system safe operation guaranteeing method based on fuzzy PID control |
| US11846279B2 (en) | 2021-01-29 | 2023-12-19 | Masterflex, Llc | Accurate volume dispensing using pump and flow sensor |
| US11920581B2 (en) | 2021-01-29 | 2024-03-05 | Masterflex Llc | Flow rate control for pump with flow sensor |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109219368B (en) * | 2016-06-10 | 2022-06-28 | 莱雅公司 | Peristaltic hand-held cosmetic dispensing system |
| CN109219368A (en) * | 2016-06-10 | 2019-01-15 | 莱雅公司 | Wriggling hand-held cosmetic distribution system |
| CN106168209B (en) * | 2016-08-23 | 2017-12-15 | 保定雷弗流体科技有限公司 | A kind of intelligent flow bearing calibration and system for peristaltic pump |
| CN106168209A (en) * | 2016-08-23 | 2016-11-30 | 保定雷弗流体科技有限公司 | A kind of intelligent flow bearing calibration for peristaltic pump and system |
| CN107191364A (en) * | 2017-07-21 | 2017-09-22 | 上海艾瑞德生物科技有限公司 | A kind of peristaltic pump fluid path scaling system and scaling method |
| CN108427403A (en) * | 2018-04-04 | 2018-08-21 | 中国航发湖南动力机械研究所 | The test run system and control method of aero-engine particle separator flow control |
| CN108427403B (en) * | 2018-04-04 | 2019-12-20 | 中国航发湖南动力机械研究所 | Test run system for flow control of particle separator of aero-engine and control method |
| CN112505245A (en) * | 2020-11-11 | 2021-03-16 | 山西科致成科技有限公司 | Multi-path standard gas flow control device for detecting mine gas sensor |
| CN112505245B (en) * | 2020-11-11 | 2023-02-14 | 山西科致成科技有限公司 | Multi-path standard gas flow control device for detecting mine gas sensor |
| CN112460039A (en) * | 2020-11-23 | 2021-03-09 | 江苏大学 | Device for monitoring operating condition of vane pump and adjusting method |
| CN112460039B (en) * | 2020-11-23 | 2022-02-01 | 江苏大学 | Device for monitoring operating condition of vane pump and adjusting method |
| CN112859586A (en) * | 2021-01-12 | 2021-05-28 | 东北大学 | Diaphragm pump system safe operation guaranteeing method based on fuzzy PID control |
| US11846279B2 (en) | 2021-01-29 | 2023-12-19 | Masterflex, Llc | Accurate volume dispensing using pump and flow sensor |
| US11920581B2 (en) | 2021-01-29 | 2024-03-05 | Masterflex Llc | Flow rate control for pump with flow sensor |
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Application publication date: 20160413 |