CN201464445U - Crop water stress automatic test device - Google Patents
Crop water stress automatic test device Download PDFInfo
- Publication number
- CN201464445U CN201464445U CN2009200052937U CN200920005293U CN201464445U CN 201464445 U CN201464445 U CN 201464445U CN 2009200052937 U CN2009200052937 U CN 2009200052937U CN 200920005293 U CN200920005293 U CN 200920005293U CN 201464445 U CN201464445 U CN 201464445U
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- water
- brushless direct
- crop
- water pump
- test device
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Abstract
The utility model relates to the field of research of crop growing water needing tests, in particular to a crop water stress automatic test device which automatically measures and controls soil water content in a test barrel. The crop water stress automatic test device comprises a barrel test device, a water supply system and a measurement control system, wherein the barrel test device comprises a test barrel for a test and an underground micropore infiltrating pipe; the water supply system comprises a water tank, a water inlet pipeline, a water return pipeline and a flow adjusting valve; the measurement control system comprises an online type soil water sensor, a soil water transducer, a brushless direct current integrated water pump, a programmable controller for controlling the brushless direct current water pump, an embedded type industrial control computer and a supervisory computer; the soil water transducer and the programmable controller are connected with the embedded type industrial control computer and then transmits measurement control information to the supervisory computer; the supervisory computer displays and prints the current measurement control data; the embedded type industrial control computer is used for comparing a measurement value with a preset value of the water sensor and selectively transmitting a command to the programmable controller; the programmable controller is connected with the brushless direct current integrated water pump, and the brushless direct current integrated water pump is connected with the underground micropore infiltrating pipe. The crop water stress automatic test device can intelligently control the water content of soil in the test barrel to be constant.
Description
Technical field
The utility model relates to plant growth needs the water test research field, and particularly a kind of crop water by soil water regime in automatic measurement and the control test bucket is coerced automatic test equipment.
Background technology
Arid is the key constraints of the most of cereal crops of northern China producing region output, and crop all may be subjected to drought stress in whole life.Crop water is coerced the law of needing the water that test can be explored the crop growth process, and provides scientific basis for formulating deficit irrigation schedule.In the control of existing water stress test moisture, what adopt usually is weight method, regularly keeps the skin wet according to weight change, makes it keep the target water percentage.This kind method not only can not guarantee the control accuracy to soil moisture content, and the reliability of test findings just is difficult to ensure, and the human cost that needs is higher.Therefore, a kind of can to keep the constant survey bucket of soil moisture automatically be very necessary in development.
The utility model content
The technical matters that the utility model solved is: provide a kind of crop water to coerce automatic test equipment, measure automatically and control and survey the bucket water regime, and adopt built-in industrial control machine closed-loop control and INTELLIGENT PID CONTROL ALGORITHM to improve its control accuracy.
The utility model is that the technical scheme that its technical matters of solution is taked is:
A kind of crop water is coerced automatic test equipment, comprise survey that barreled is put, water system and Measurement and Control System three parts.Survey barreled and put and comprise the survey bucket that is used to test, and buried micropore infiltrating irrigation pipe, survey bucket and made by hollow cylinder 302 type corrosion resistant plates, wall thickness is 5mm, and internal diameter is 40cm, and height is 30cm.Water system is made up of water tank, inlet pipeline, water return pipeline and flow control valve.Measurement and Control System is by online FDR-3 type soil moisture sensor, the soil moisture transmitter, and U-30-01 type brushless direct-current water pump, the Programmable Logic Controller of control brushless direct-current water pump, built-in industrial control machine and host computer are formed.Described soil moisture transmitter, Programmable Logic Controller are connected with built-in industrial control machine, then with the observing and controlling information transmission to host computer, host computer shows also prints current measuring and control data.Described built-in industrial control machine comprises and is used for comparison moisture transducer measured value and preset value, and optionally send instruction to Programmable Logic Controller, described Programmable Logic Controller connects the integrated water pump of brushless direct-current, and the integrated water pump of described brushless direct-current connects underground micropore infiltrating irrigation pipe.
Of the present utility model being contemplated that: being supplied water to micropore infiltrating irrigation pipe by the brushless direct-current water pump increases the moisture of surveying soil in the bucket.Adopt the control of PID intelligent control algorithm, and pass through the action of Controlled by Programmable Controller brushless direct-current water pump.
Advantage of the present utility model and good effect are:
1. can survey the interior soil moisture content of bucket by real-time online measuring.
2. can control the soil moisture content of surveying in the bucket automatically, System response time is shorter.
3. adopt the RS485 communication, not only can realize the long Distance Transmission of data, and the expansion of system is upgraded after convenient.
Description of drawings
Fig. 1 is that the bucket front view is surveyed in the water stress test;
Fig. 2 is that the bucket vertical view is surveyed in the water stress test;
Fig. 3 is the system diagram that crop water is coerced test unit;
Fig. 4 is that control system is always schemed.
Description of reference numerals:
With reference to Fig. 3,1 surveys bucket; 2 micropore infiltrating irrigation pipes; 3 soil; 4 water tanks; 5 inlet pipelines; 6 water return pipelines; 7 flow control valves; 8 soil moisture sensors; 9 soil moisture transmitters; 10 brushless direct-current water pumps; 11 Programmable Logic Controllers; 12 built-in industrial control machines; 13 host computers.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 1～3, a kind of crop water is coerced automatic test equipment, comprise survey that barreled is put, water system and Measurement and Control System three parts.Survey barreled and put and comprise the survey bucket 1 that is used to test, and buried micropore infiltrating irrigation pipe 2, survey bucket and made by hollow cylinder 302 type corrosion resistant plates, wall thickness is 5mm, and internal diameter is 40cm, and height is 30cm.Water system is made up of water tank 4, inlet pipeline 5, water return pipeline 6 and flow control valve 7.Measurement and Control System is by online FDR-3 type soil moisture sensor 8, soil moisture transmitter 9, and U-30-01 type brushless direct-current water pump 10, the Programmable Logic Controller 11 of control brushless direct-current water pump, built-in industrial control machine 12 and host computer 13 are formed.Described soil moisture transmitter 9, Programmable Logic Controller 11 are connected with built-in industrial control machine 12, then with the observing and controlling information transmission to host computer 13, host computer 13 shows also prints current measuring and control data.Described built-in industrial control machine 12 comprises and is used for comparison moisture transducer measured value and preset value, and optionally send instruction to Programmable Logic Controller 11, described Programmable Logic Controller 11 connects the integrated water pump 10 of brushless direct-current, and the integrated water pump 10 of described brushless direct-current connects underground micropore infiltrating irrigation pipe 2.
As shown in Figure 4, initiatively heat the chamber robot control system(RCS), obtain current soil moisture data, and transfer to soil moisture transmitter 9 with current signal by online soil moisture sensor 8.Soil moisture transmitter 9 is sent to built-in industrial control machine 12 with collection result by the RS232/485 converter, built-in industrial control machine 12 is according to information such as moisture are provided with, produce control program by the INTELLIGENT PID CONTROL ALGORITHM program, and send instruction to Programmable Logic Controller 11, brushless direct-current water pump 10 is taked corresponding action, surveys the constant purpose of soil moisture content in the bucket thereby reach control.Observing and controlling information after built-in industrial control machine 12 simple process is delivered to host computer 13 through another road RS232/485 converter.
Example: it is 60% that the interior volumetric soil water content of bucket is surveyed in control.
, will try a barrel interior soil moisture content and adjust to 60% first during operational system in system.The range that soil moisture sensor is set is 10～90%, and the setting data acquisition time is spaced apart 5 minutes.Built-in industrial control machine 12 per 5 minutes is gathered once by the data of soil moisture transmitter 9 by the transmission of RS485 change-over circuit.Built-in industrial control machine 12 judges whether soil moisture content is lower than 60% (because the existence of soil moisture evapotranspiration in the current examination bucket, soil moisture content only can descend), when being lower than 60%, built-in industrial control machine 12 is according to information such as soil moisture are provided with, produce control program by the INTELLIGENT PID CONTROL ALGORITHM program, and Programmable Logic Controller 11 is sent the action that brushless direct-current water pump 10 is controlled in instruction; When soil moisture content reached 60%, industrial computer 12 sent instruction to Programmable Logic Controller and closes brushless direct-current water pump 10.Simultaneously, built-in industrial control machine 12 carries out through another road RS232/485 change-over circuit the result being sent to host computer 13 after the simple process, host computer 13 with whole observing and controlling reference records in database.So circulation, thus reach the purpose that soil 3 water percentage in the bucket 1 are surveyed in automatic control.
Claims (3)
1. a crop water is coerced automatic test equipment, it is characterized in that: comprise that surveying barreled puts, water system and Measurement and Control System three parts, the survey barreled is put and is comprised the survey bucket (1) that is used to test, and buried micropore infiltrating irrigation pipe (2), surveying bucket is made by hollow cylinder 302 type corrosion resistant plates, wall thickness is 5mm, internal diameter is 40cm, height is 30cm, water system is by water tank (4), inlet pipeline (5), water return pipeline (6) and flow control valve (7) are formed, Measurement and Control System is by online FDR-3 type soil moisture sensor (8), soil moisture transmitter (9), the integrated water pump of U-30-01 type brushless direct-current (10), the Programmable Logic Controller (11) of control brushless direct-current water pump, built-in industrial control machine (12) and host computer (13) are formed, described soil moisture transmitter (9), Programmable Logic Controller (11) is connected with built-in industrial control machine (12), then with the observing and controlling information transmission to host computer (13), host computer (13) shows and prints current measuring and control data, described built-in industrial control machine (12) comprises and is used for comparison moisture transducer measured value and preset value, and optionally send instruction to Programmable Logic Controller (11), described Programmable Logic Controller (11) connects the integrated water pump of brushless direct-current (10), and the integrated water pump of described brushless direct-current (10) connects underground micropore infiltrating irrigation pipe (2).
2. a kind of crop water according to claim 1 is coerced automatic test equipment, it is characterized in that: described soil moisture sensor (8) is the reflective moisture transducer of frequency domain.
3. a kind of crop water according to claim 1 is coerced automatic test equipment, it is characterized in that: described infiltrating irrigation pipe (2) is buried micropore infiltrating irrigation pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200052937U CN201464445U (en) | 2009-04-17 | 2009-04-17 | Crop water stress automatic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200052937U CN201464445U (en) | 2009-04-17 | 2009-04-17 | Crop water stress automatic test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201464445U true CN201464445U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200052937U Expired - Fee Related CN201464445U (en) | 2009-04-17 | 2009-04-17 | Crop water stress automatic test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201464445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106105753A (en) * | 2016-08-08 | 2016-11-16 | 云南省农业科学院甘蔗研究所 | A kind of Caulis Sacchari sinensis barrel plant drought stress test method |
-
2009
- 2009-04-17 CN CN2009200052937U patent/CN201464445U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106105753A (en) * | 2016-08-08 | 2016-11-16 | 云南省农业科学院甘蔗研究所 | A kind of Caulis Sacchari sinensis barrel plant drought stress test method |
| CN106105753B (en) * | 2016-08-08 | 2019-06-18 | 云南省农业科学院甘蔗研究所 | A kind of sugarcane barrel plant drought stress test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110417 |