CN104977166A - Comprehensive drip irrigation tape performance evaluation system - Google Patents

Comprehensive drip irrigation tape performance evaluation system Download PDF

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Publication number
CN104977166A
CN104977166A CN201510418594.2A CN201510418594A CN104977166A CN 104977166 A CN104977166 A CN 104977166A CN 201510418594 A CN201510418594 A CN 201510418594A CN 104977166 A CN104977166 A CN 104977166A
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CN
China
Prior art keywords
dropper
drip irrigation
dropper band
evaluation system
main control
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Pending
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CN201510418594.2A
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Chinese (zh)
Inventor
王慧泉
余辉
孙敬来
刘东远
杨敏
王金海
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Tianjin Polytechnic University
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Tianjin Polytechnic University
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Priority to CN201510418594.2A priority Critical patent/CN104977166A/en
Publication of CN104977166A publication Critical patent/CN104977166A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a comprehensive drip irrigation tape performance evaluation system, which is characterized by comprising single-path drip irrigation tape performance detection lines and a control host, wherein the control host controls water pressure in a to-be-detected drip irrigation tape sample and emitter detection terminals and the like to fully automatically detect a quantitative index of each emitter of the drip irrigation tape, calculation and analysis are carried out via software in the control host, and the comprehensive evaluation performance of the to-be-detected drip irrigation tape sample is acquired. During the entire evaluation process, fully-automatic unmanned management can be realized, the detection efficiency is high, and the detection result is stable and accurate. Expansibility is high, one control host can be connected with more than three detection line, each detection line can be serially connected with more than ten detection terminals, and the system of the invention can be applied to large-scale comprehensive drip irrigation tape performance evaluation.

Description

A kind of dropper band performance synthesis evaluation system
Technical field
The present invention relates to a kind of can the evaluation system of comprehensive evaluation dropper band performance, belong to Water-saving agricultural technology field.
Background technology
China, as large agricultural country, is greatly developing the precision mode of production in recent years, and promotes ripe reproducible agriculture Internet of Things application model.State Council proposes in about the instruction actively pushing forward " internet+" to take action (No. [2015] 40, promulgated by the State Council) file " on basis good field and area, universal based on environment sensing, Real-Time Monitoring, the networking Agricultural Environmental Monitoring system that automatically controls.In large agricultural product large-scale production region, build the agriculture Internet of Things observing and controlling system of Incorporate, precision operations such as cultivating located by the irrigation of enforcement intelligent water-saving, fertilization compositions based on earth measurement, agricultural machinery." one of the core technology of the precision mode of production is exactly that intelligent water-saving is irrigated, not only can significantly using water wisely, and effectively can improve agricultural production efficiency.
Dropper band is one of important way realizing intelligent water-saving irrigation, is utilize plastic conduit that water is delivered to crop root by aperture or water dropper to carry out localized irrigation, water drop by drop evenly and is lentamente dropped in the soil near crop root.Make the soil of the most ecumene of crop root often keep suitable humidity, make the water of soil, fertilizer, gas, heat, microbial activities, be in good condition all the time, for high crop yield stable yields creates favorable conditions.
But the quality of dropper band is very different, underproof dropper band does not only reach the effect that intelligent water-saving is irrigated, and bring to the growth of crop to have a strong impact on.Therefore, dropper band all needs strictly to detect its quality when producing and use, and makes it meet relevant national standard.Dropper band combination property detects mainly by artificial in current manufacturing enterprise, and by manual observation and the water outlet situation measuring each drip hole, hand computation correlation parameter, obtains the combination property situation of dropper carry sample.Artificial detection, is subject to the restriction of laboratory technician personal considerations, and often testing result deviation is large, and detection efficiency is low, cannot meet the demand of current large-scale industrial production.The present invention is in conjunction with many-sided technology such as electronics, computing machine, machinery and softwares, achieve a kind of full automatic dropper band performance synthesis evaluation system, dropper band detection efficiency and Detection job can be improved, for intelligent water-saving irrigation technique development and universal provide powerful guarantee.
Summary of the invention
The present invention announces a kind of dropper band performance synthesis evaluation system.This compositive appraisement system can realize domestic detection of now producing drip irrigation zone (interior edge patch type drip irrigation tape, interior edge joint strip formula drip irrigation zone, interior edge column type drip irrigation zone, single-blade labyrinth type drip irrigation tape, pressure-compensated drip irrigation belt, drip irrigation below the surface band etc.) flow uniformity, pressure versus flow relation, resistance to hydrostatic pressure, burst pressure, anti-siphon plugging performance (drip irrigation below the surface band), evaluate examine drip irrigation zone product hierarchy level; And the function of automatic detection, output detections report automatically can be realized.
Technical solution of the present invention is such, and as shown in Figure 3, by multiple single channel dropper band Performance Detection line 17, communication cable 18 and main control system 19 form the dropper band performance synthesis evaluation system that the present invention announces.Single channel dropper band Performance Detection line as shown in Figure 1, by water outlet hydraulic pressure sensor 1, rising pipe 2, dropper end of tape connector 3, multiple dropper band water dropper sense terminals 6, dropper rim end connector 7, single channel oral siphon 8, enter water hydraulic pressure sensor 9, total oral siphon 10, membrane pump 11 form, in figure, 4 is dropper carry sample to be measured, and 5 is the water dropper schematic diagram of dropper carry sample to be measured.Each dropper band water dropper sense terminals 6 design diagram as shown in Figure 2, is made up of body and fixed support 12, core processor unit 13, telecommunication cable water joint 14, drop receiving vessel 15, draw-off valve 16.
Principle of work of the present invention is, puts in the present system by dropper carry sample 4 to be measured, and dropper carry sample 4 two ends to be measured are connected with end connector 3 with native system top connector 7.All assessment process all have main control system 19 to control.Concrete steps are as follows, main control system 19 controls the membrane pump in single channel detection line 17, by dropper water by total input water pipe 10, pump in the input water pipe 8 of independent detection line 17, detected by input end hydraulic pressure sensor 9 and output terminal hydraulic pressure sensor 1 pair of hydraulic pressure, hydraulic pressure information is fed back in main control system 19 by communication cable 18, thus realizes controlling in real time the hydraulic pressure in dropper band to be measured, ensures that in dropper band, hydraulic pressure meets evaluation and test condition and keeps stable.Liquid in dropper band is finally got rid of by output water pipe 2.By carrying out determination and analysis to each water dropper 5 situation of dripping of dropper carry sample 4 to be measured, the dropper band combination property of some row can be obtained.The drip detection of situation of water dropper 5 is completed primarily of the sense terminals 6 of placing immediately below it.Sense terminals 6 is designed with waterproof communication connector 14, and itself and main control system 19 are in series by telecommunication cable 18, realizes the transmission of information and the transmitting-receiving of control command.When assessment process starts, first terminal controls draw-off valve 16, is realized the peeling process of the emptying of drop receiving vessel 15 and inner Weighing module by core processor unit 13.By the liquid quality received in the unit of account time, calculate liquid volume, and by data upload in main control system 19, completed by the software in main control system 19 and the average discharge of each water dropper, the index such as flow deviation, the coefficient of variation of each water dropper in wall scroll dropper to be measured carry sample 5 are calculated, and final output detections report.
Main control system 19 can connect the independent dropper band Performance Detection line 17 being no less than 3 simultaneously, in independent dropper band Performance Detection 17, generally can support the dropper band water dropper sense terminals 6 being no less than 10.Detection line quantity can freely be connected with sense terminals quantity as required and arrange in pairs or groups.
Advantage of the present invention and good effect are:
Dropper band performance synthesis evaluation system of the present invention has software program to control completely, can realize the quantitative detection to dropper band each water dropper performance, and whole assessment process can realize full-automatic unmannedization management, and detection efficiency is high, and testing result is accurately stable.Meanwhile, favorable expandability of the present invention, a main control system can connect the detection line being no less than 3, and every bar detection line can be connected the sense terminals being no less than 10.Connected by bus between each sense terminals, its order can freely be discharged, and namely communication modes can be wired connection, also can be wireless connections, simplifies complicated operation degree.
Accompanying drawing explanation
Fig. 1 is single channel dropper band Performance Detection line design diagram.
Fig. 2 is dropper band each water dropper sense terminals design diagram.
Fig. 3 is dropper band combination property evaluation system global design schematic diagram
Embodiment
Embodiment one:
According to the test and appraisal requirement to dropper band in GB " plastic water saving irrigates equipment systemic transferring, band " (GB/T 19812.3-2008), the present invention can be utilized to realize as flow uniformity experiment, pressure versus flow relationship experiments etc.For pressure versus flow relationship experiments, setting experiment condition is the segmentation supercharging from small to large of drip irrigation zone inlet pressure, initial pressure 0.02MPa, every staged pressure amplification is not more than 0.05MPa, maximum pressure is generally not more than 0.5MPa, pressure increase stage regulating time is not limit, and measure after water flowing constant voltage 3min, the time of dripping is no less than 3min; Graduated cylinder volume 500mL, drip duration can under graduated cylinder does not overflow prerequisite free setting (as flow velocity 10L/h, the duration that drips is the longest for 500mL/10L/h=3min); When the time reaches Preset Time, reported to the police by system; Setting mensuration project by 10 water droppers on the sample of inspection drip irrigation zone, detect each water dropper and to drip quality (g), weighing precision 0.1g.
Dropper carry sample 4 to be measured is installed in native system, opens software, and require setting correlation parameter, open system according to above.Main control system can control membrane pump 11, is pumped into by dripping irrigation water in dropper band to be measured, by input end hydraulic pressure sensor 9 and output terminal hydraulic pressure sensor 1, measures hydraulic pressure.The mean value getting two sensors, as the hydraulic pressure value in dropper carry sample, is fed back to main control system, and final adjustment membrane pump output pressure, makes initial hydraulic pressure in sample be 0.02MPa.After pressure stabilisation, start each water dropper sense terminals 6, complete the functions such as sluicing, peeling, and start timing and weigh.When 3min is taken in timing to, obtain the liquid quality in each terminal 6, and transfer to main control system, calculated and pressure-flow relationships Drawing of Curve by the average discharge under dripping end flow calculating each under each staged pressure of the software simulating in main control system, each staged pressure, and the final flow stance index that calculates is as integration evaluate indexes.For pressure-compensated drip irrigation belt, when flow stance index≤0.2, to examine drip irrigation zone qualified, otherwise be defective.

Claims (5)

1. a dropper band performance synthesis evaluation system, it is characterized in that: system is made up of single channel dropper band Performance Detection line and main control system, the main control system hydraulic pressure and water dropper sense terminals etc. controlled in dropper carry sample to be measured realizes the quantitative target of each water dropper of fully-automated synthesis dropper band, carry out computational analysis by software in main control system, obtain the comprehensive evaluating performance of dropper carry sample to be measured.
2. a kind of dropper band performance synthesis evaluation system according to claim 1, is characterized in that main control system can connect the single channel dropper band detection line being no less than 3, and independently can control hydraulic pressure and the test process of each road dropper band detection line.
3. a dropper band performance synthesis evaluation system. a kind of dropper band performance synthesis evaluation system according to claim 1, it is characterized in that single channel dropper band Performance Detection line supported water dropper sense terminals quantity is multiple stage, generally be no less than 10, each terminal room adopts the series system of bus, can separate unit work also can multiple stage work simultaneously.
4. a kind of dropper band performance synthesis evaluation system according to claim 1, is characterized in that water dropper sense terminals can complete the functions such as peeling, sluicing automatically, is controlled the quality record that can realize liquid in collection container by main control system.
5. a kind of dropper band performance synthesis evaluation system according to claim 1, is characterized in that the hydraulic pressure mensuration in dropper band is obtained by input end and output terminal hydraulic pressure sensor simultaneously.
CN201510418594.2A 2015-07-14 2015-07-14 Comprehensive drip irrigation tape performance evaluation system Pending CN104977166A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106234164A (en) * 2016-08-30 2016-12-21 山东胜伟园林科技有限公司 A kind of emitter structure for drip irrigation system
CN107238489A (en) * 2017-05-25 2017-10-10 大禹节水集团股份有限公司 Dripping end flow device for fast detecting

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US5732887A (en) * 1988-02-16 1998-03-31 Roberts; James C. Drip irrigation tape and method of manufacture
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Publication number Priority date Publication date Assignee Title
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CN101256120A (en) * 2008-04-03 2008-09-03 中国农业大学 Simple apparatus for testing combination property of drip irrigation douche
CN101876596A (en) * 2009-12-15 2010-11-03 北京市水利科学研究所 Intelligent test device for fertilizer applicator
CN102288396A (en) * 2011-05-11 2011-12-21 中国农业大学 Comprehensive testing device for anti-clogging performance of drip irrigation emitters
CN103039325A (en) * 2012-12-20 2013-04-17 华中科技大学 Trace irrigation water saving performance testing system
CN203275102U (en) * 2013-04-11 2013-11-06 甘肃大禹节水集团股份有限公司 Comprehensive evaluation equipment for water conservancy performance of drip irrigation pipe

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106234164A (en) * 2016-08-30 2016-12-21 山东胜伟园林科技有限公司 A kind of emitter structure for drip irrigation system
CN107238489A (en) * 2017-05-25 2017-10-10 大禹节水集团股份有限公司 Dripping end flow device for fast detecting
CN107238489B (en) * 2017-05-25 2019-04-02 大禹节水集团股份有限公司 Dripping end flow device for fast detecting

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