CN2685872Y - Apparatus for precision detecting plant organ size change to realizing water-saving irrigation - Google Patents
Apparatus for precision detecting plant organ size change to realizing water-saving irrigation Download PDFInfo
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- CN2685872Y CN2685872Y CN 03210284 CN03210284U CN2685872Y CN 2685872 Y CN2685872 Y CN 2685872Y CN 03210284 CN03210284 CN 03210284 CN 03210284 U CN03210284 U CN 03210284U CN 2685872 Y CN2685872 Y CN 2685872Y
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Abstract
The utility model discloses a device for precisely detecting plant organ dimension change for realizing water saving irrigation, which is composed of a sensor, a conversion amplifying circuit and a single chip machine detect and control communication system, wherein the sensor is clamped on a representative leaf of a plant to be measured. After a measured signal output by the sensor is transferred to the conversion amplifying circuit, is amplified and is converted through a digit die, the measured signal is transferred to a microprocessor. Then, the measured signal is transferred to a master control computer at regular time by the microprocessor. Whether an electronic switch of an irrigation system is switched on is determined by the master control computer according to processed and analyzed results of measured data. Thereby, the closed loop control of an irrigated plant is realized. Compared with a traditional irrigation proposal, the condition of water in a plant body can be directly, comprehensively, rapidly and sensitively reflected by the modality or the physiological change of plant organs, such as a leaf. The utility model has the advantages of high control precision and good effect of water saving. An expected water-saving rate is 30%, and the utility model can provides obvious economical and social benefits.
Description
Affiliated technical field
The utility model relates to water-saving irrigation field and sensing observation and control technology field, particularly relates to a kind of accurate device that the plant organ change in size realizes water-saving irrigation that detects.
Background technology
Present irrigation system all is the controlled variable of the parameters such as temperature of humidity, environment with soil as irrigation system, be not direct parameter, so control accuracy is low, and the problem of bringing is that the irrigation water resource has been caused very big waste.That is to say that in soil-plant-atmosphere continuous system (SPAC) mostly former work is to focus on according to the holard assigns to formulate irrigation program or set up irrigation system.Although obtain using comparatively widely according to soil moisture control irrigation, but still exist and much to be difficult to the difficulty that overcomes, suitable soil moisture for different areas, plant, soil types and plant normal growth differs greatly on the one hand, uses and is limited to.On the other hand, the moisture transducer probe is vulnerable to the interference of multiple factors such as temperature, salt accumulation, and measuring accuracy, response characteristic (comprising hysteresis quality) and reliability are also relatively poor.In fact, soil moisture only is a factor among the SPAC, and the process of plant suction and dehydration is each organ of plant itself and the result of its place environmental interaction, and is subjected to the combined action of each link of SPAC.
At the problems referred to above, the nondestructive plant moisture precise detection technology based on physical method is proposed, realize the closed-loop control irrigation system, the utilization ratio that improves China's water resource is had very important significance.Have in being specifically related to: the research of the little increment flexible measuring of plant organ micron order sensor; Accurate corresponding relation between plant moisture and the little increment changing value of its organ geometric scale; Sensor networkization and Based Intelligent Control water-saving irrigation expert system.The existing researchist of China just used LVDT-5 type (differential transformer type) displacement transducer corn, citrus etc. is measured at the nineties initial stage in 20th century, had obtained 15.6% and 21.4% water-saving result respectively.But LVDT is used for the mechanical manufacturing field industry measurement, and Measurement Resolution and precision can meet the demands, but indexs such as ergometry, volume and anti-environmental interference ability but can't satisfy the actual requirement to plant measurement.China fruit tree forest workers measures the citrus size with outside micrometer, works as if find that fruit size does not change (increase) in growth period, just fruit tree is in time poured water.But the research level of all things considered this respect China with compared big gap abroad.Recently, the scientist of Hebrew Univ Jerusalem Israel also tests aspect the irrigation system of tomato at application micron order vane thickness sensor, obtain water-saving rate 35%, increased production 40% effect, though also do not reach the degree of practicability at present, the international research latest tendency is represented in this research.Think by analysis: also there are a lot of problems in the micro-displacement sensor that can reach this magnitude at present, and as measuring accuracy and measurement range, ergometry, measurement environment, and all there are contradiction in sensor construction, weight aspect.If the advanced technology of energy integrated use industry measurement field tests, adopt modern Design such as optimal design, design of Simulation, research and development take into full account the characteristics of plant own, meet the novel sensor that plant detects demand, and the problems referred to above will rationally be solved.Then this research just can be applied fast, is China's water-saving irrigation service early.At present, the micron order in the industry measurement is measured oneself and is reached suitable maturity.Be transplanted to the crossing domain of life science and hydraulic engineering after this class technology integrated, and develop, have fabulous novelty and practicality according to functional requirement.
Summary of the invention
The purpose of this utility model provides a kind of accurate device that the plant organ change in size realizes water-saving irrigation that detects, and by the trace variation of the organ of plant own, need to obtain water information to go to control irrigation system, then can reach the purpose of real water saving.
In order to achieve the above object, the technical solution adopted in the utility model is as follows:
It is made up of sensor, converter amplifier circuit, scm observe and control communication system; Said sensor is a blade sensor, and wherein, blade sensor comprises flexible member, spheric probe, foil gauge, flexible member pressing plate, fixedly gauge head, swash plate, sensor base; Be contained in and spheric probe be housed below the front end of the flexible member above the sensor base, on the top and bottom, rear end of flexible member foil gauge is housed respectively; Be contained in above the front end inclined-plane of the swash plate below the sensor base, the fixedly gauge head that can regulate horizontal level is housed, fixedly gauge head can contact with spheric probe, flexible member pressing plate, flexible member, sensor base and swash plate are affixed with trip bolt, two foil gauges are connected with signal cable through the electrical wiring plates, and the single line in the signal cable is held with the in-phase input end MVIN of the follower amplifier of the front end of converter amplifier circuit and linked to each other.
The utility model is compared with background technology, and the useful effect that has is:
(1) by to the sensor of the little increment measurement of organ blade of plant itself to the plant moisture change information, implement to irrigate in the critical conditions of lack of water, also can utilize plant that the rule that needs of moisture is implemented to irrigate;
(2) under the constant prerequisite of the present irrigation pipe network of China, itself constitute the FEEDBACK CONTROL link, form closed-loop control system, the control accuracy height by the controlled device plant; The advantage of bringing is that water-saving result is good, and the expection water-saving rate is 30%.Can bring tangible economic benefit and social benefit;
(3) can be installed in the indoor and outdoor irrigation systems such as intelligent greenhouse and modern agriculture base, be suitable for crops such as corn, wheat, soybean, fancy fruit saplings such as broad-leaved fast growing forest seedlings such as willow and Li Tao grape, and part landscape flower lawn plant etc.
Obviously, compare with the variation of soil moisture, the form of plant organ such as leaf or physiological change, then can be more direct, more comprehensively, quicker, react the situation of the moisture in the plant more delicately.Like this, the measurement of diagnosis of plant moisture can be converted into the research of the measuring accuracy and the mutual corresponding rule of micro-displacement sensor.The irrigation system of Zu Chenging is an optimal control system like this, can improve the utilization ratio of irrigation water, promptly reaches the purpose of water saving.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is a vane thickness survey sensor structure principle chart;
Fig. 3 is converter amplifier circuit figure;
Fig. 4 is scm observe and control communication system circuit figure.
Among Fig. 2: 1 flexible member, 2 spheric probes, 3 foil gauges, 4 trip bolts, 5 flexible member pressing plates, 6 cable pressing plates, 7 cable clamp screws 8 are gauge head 9 screws 10 swash plates 11 matrixes 12 electrical wiring plates 13 three-core shielding cables fixedly
Embodiment
As shown in Figure 2, it is made up of sensor, converter amplifier circuit, scm observe and control communication system; Said sensor is a blade sensor, and wherein, blade sensor comprises flexible member 1, spheric probe 2, foil gauge 3, flexible member pressing plate 5, fixedly gauge head 8, swash plate 10, sensor base 11; Be contained in and spheric probe 2 be housed below the front end of the flexible member 1 above the sensor base 11, on the top and bottom, rear end of flexible member 1 foil gauge 3 is housed respectively; Be contained in above the front end inclined-plane of the swash plate 10 below the sensor base 11, the fixedly gauge head 8 that can regulate horizontal level is housed, with screw 9 lockings, fixedly gauge head 8 can contact with spheric probe 2, flexible member pressing plate 5, flexible member 1, sensor base 9 and swash plate 10 4 usefulness trip bolts 4 are affixed, two foil gauges 3 are connected with signal cable 13 through electrical wiring plate 12, signal cable 13 usefulness cable pressing plates 6 are pushed down with cable clamp screw 7 and are clamped, the single line in the signal cable 13 again with the front end follower amplifier U of converter amplifier circuit
1In-phase input end MVIN end link to each other.
Look the actual conditions difference, one group (several) sensor as shown in Figure 1 and Figure 2 is clamped in by on the representational blade of measuring plants, sensor needs to connect support by auxiliary stand, and tested blade or fruit will suitably fixedly make it have certain stability, to guarantee measuring accuracy.The measuring-signal of sensor output is transferred to and is installed in the converter amplifier circuit of measuring in the control electronic box, and to sensor shown in Figure 2, its output signal is a terminal, directly links to each other with MVIN end among Fig. 3 by the single line in the 3 core cables.U
1, U
2The signal of output is through differential amplifier U
3The back is from the output of MVOUT end, the IN end of the CD4051 analog switch (four select 1) among this end and Fig. 4 links to each other, select tested passage by the CD4051 analog switch, signal behind analog switch enters the input end IN+ of 14 A/D converter ICL7135, behind the digital quantity process latch 74LS373 after the A/D conversion, send in the storer 2864 by Single-chip Controlling, and the current measured value of demonstration in the liquor charging crystalline substance, storage is one month measurement data of 4 passages in 2864, the measured value that select to show each passage in month of storage in the measured value or 2864 of current any one passage by the function button on the control box, data with storage in 2864 regularly are transferred in the master control host computer by serial port RS232 simultaneously, transmit the measured value of 4 passages at every turn.After in computing machine the data of slave computer being carried out statistic sampling and filtering etc. and handle, the form by broken line graph and form shows any passage measured value or former any one day measured value on the same day.Storing in the computing machine by the growth curve of measuring plants, when measured value and growth curve generation deviation, just send remote control commands, open the operation valve of irrigation system by relay, plant is carried out microspray irrigation or micro drip-irrigation, irrigation time and frequency are controlled by main control computer.Thereby realized real closed-loop control, can maximally utilise irrigation water.
Claims (1)
1, a kind of accurate device that the plant organ change in size realizes water-saving irrigation that detects is made up of sensor, converter amplifier circuit, scm observe and control communication system; It is characterized in that: said sensor is a blade sensor, and wherein, blade sensor comprises flexible member (1), spheric probe (2), foil gauge (3), flexible member pressing plate (5), fixedly gauge head (8), swash plate (10), sensor base (11); Be contained in and spheric probe (2) be housed below the front end of the flexible member (1) above the sensor base (11), foil gauge (3) is housed respectively on the top and bottom, rear end of flexible member (1); Be contained in above the front end inclined-plane of the following swash plate (10) of sensor base (9), the fixedly gauge head (8) that can regulate horizontal level is housed, fixedly gauge head (8) can contact with spheric probe (2), flexible member pressing plate (5), flexible member (1), sensor base (9) and swash plate (10) four usefulness trip bolts (4) are affixed, two foil gauges (3) are connected with signal cable (13) through electrical wiring plates (12), the single line in the signal cable (13) again with the front end follower amplifier (U of converter amplifier circuit
1) in-phase input end MVIN end link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210284 CN2685872Y (en) | 2003-08-25 | 2003-08-25 | Apparatus for precision detecting plant organ size change to realizing water-saving irrigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210284 CN2685872Y (en) | 2003-08-25 | 2003-08-25 | Apparatus for precision detecting plant organ size change to realizing water-saving irrigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2685872Y true CN2685872Y (en) | 2005-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210284 Expired - Fee Related CN2685872Y (en) | 2003-08-25 | 2003-08-25 | Apparatus for precision detecting plant organ size change to realizing water-saving irrigation |
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| Country | Link |
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| CN (1) | CN2685872Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243069A (en) * | 2011-06-22 | 2011-11-16 | 华南农业大学 | Method and device for determining leaf area index |
| CN103645355A (en) * | 2013-12-30 | 2014-03-19 | 江苏大学 | Sensor for measuring electrical parameters of plant leaves |
| CN104007143A (en) * | 2014-05-30 | 2014-08-27 | 河南科技大学 | Simple plant water-shortage detection mechanism |
| CN104012375A (en) * | 2014-05-07 | 2014-09-03 | 娄志 | Agricultural automatic sensing irrigation monitoring system |
| CN104025981A (en) * | 2013-03-04 | 2014-09-10 | 南京邮电大学 | Novel simple intelligent flower drop irrigation system |
| CN106483128A (en) * | 2015-08-28 | 2017-03-08 | 株式会社理光 | Plant culture supports that method is supported in device and plant culture |
| CN107356291A (en) * | 2017-07-31 | 2017-11-17 | 天津大学 | A kind of flexible extending blade face sensor-based system and preparation method |
| CN114858049A (en) * | 2022-05-27 | 2022-08-05 | 江西中烟工业有限责任公司 | Tobacco material thickness measuring device and detection method thereof |
-
2003
- 2003-08-25 CN CN 03210284 patent/CN2685872Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243069A (en) * | 2011-06-22 | 2011-11-16 | 华南农业大学 | Method and device for determining leaf area index |
| CN102243069B (en) * | 2011-06-22 | 2013-05-01 | 华南农业大学 | Method and device for determining leaf area index |
| CN104025981A (en) * | 2013-03-04 | 2014-09-10 | 南京邮电大学 | Novel simple intelligent flower drop irrigation system |
| CN103645355A (en) * | 2013-12-30 | 2014-03-19 | 江苏大学 | Sensor for measuring electrical parameters of plant leaves |
| CN104012375A (en) * | 2014-05-07 | 2014-09-03 | 娄志 | Agricultural automatic sensing irrigation monitoring system |
| CN104007143A (en) * | 2014-05-30 | 2014-08-27 | 河南科技大学 | Simple plant water-shortage detection mechanism |
| CN106483128A (en) * | 2015-08-28 | 2017-03-08 | 株式会社理光 | Plant culture supports that method is supported in device and plant culture |
| CN107356291A (en) * | 2017-07-31 | 2017-11-17 | 天津大学 | A kind of flexible extending blade face sensor-based system and preparation method |
| CN114858049A (en) * | 2022-05-27 | 2022-08-05 | 江西中烟工业有限责任公司 | Tobacco material thickness measuring device and detection method thereof |
| CN114858049B (en) * | 2022-05-27 | 2024-08-20 | 江西中烟工业有限责任公司 | Tobacco material thickness measuring device and detecting method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |