CN101482549A - Portable reference crop total evapotranspiration measuring and issuing system - Google Patents
Portable reference crop total evapotranspiration measuring and issuing system Download PDFInfo
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- CN101482549A CN101482549A CNA2009100781217A CN200910078121A CN101482549A CN 101482549 A CN101482549 A CN 101482549A CN A2009100781217 A CNA2009100781217 A CN A2009100781217A CN 200910078121 A CN200910078121 A CN 200910078121A CN 101482549 A CN101482549 A CN 101482549A
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Abstract
The invention discloses a portable reference crop evapotranspiration amount measurement distribution system, comprising a sensor group for collecting the reference crop evapotranspiration amount measuring parameters; a collection main machine for processing the reference crop evapotranspiration amount measuring parameters. The accurate measurement of the reference crop evapotranspiration amount measuring parameters can be performed by the less sensors and the device cost is reduced. The system is provided with the remote access and distribution function by an Ethernet and the application of GSM/GPRS, with no geographical restriction and unified management and the data is provides for constituting the area crop irrigation procedure and area irrigation water use, the water resources utilization plan, the irrigation project planning design and management.
Description
Technical field
The present invention relates to agriculture fields of measurement, particularly relate to a kind of portable reference crop total evapotranspiration measuring and issuing system.
Background technology
At present to reference crop tatol evapotranspiration (ET
0) and the mensuration of the water demand of crop, adopt the computing method of crop reference transpiration quantity mostly, utilize aerodynamics method, water balance method, lysimeter method, vortex correlation method and remote sensing method to measure and obtain the crop reference tatol evapotranspiration, commonly used as ET
0The soil transpiration pipe/transpiration of evapotranspiring is evapotranspired simulator according to the soil water balance principle, soil that can the simulating nature state and the rising evapotranspiration of plant, the moisture that monitoring crops, turf, plant and soil are scattered and disappeared by evaporation, but and reasonable irrigation time of accurately predicting crop and required irrigation volume, have very high precision, can obtain the ET of short time interval
0Very most of employing computing method are obtained ET
0Value, the ET of the 900ET Portable Automatic Weather Station of U.S. Spectrum, Australian Monitor EnviroStation ecological network weather station, U.S. Hunter
0System, meteorological sensor by configure dedicated and collector be to the meteorologic parameter collection, and the subsidiary several formula such as the Penman-Montieth, the Penman-van Bavel that adopt international popular or Priestly Taylor that calculate calculate; Typically, cooperate powerful PC software as the ETManager of U.S. rain bird company, by network, historical data, the same day weather information obtain ET
0Value, and can the control electromagnetic valve scientific management irrigate strategy, for irrigation provides one-stop service.
There is the cost height in the device of above-mentioned lysimeter or analogy method, and dress soil difficulty is installed, and moves inconvenience, needs shortcoming such as periodic maintenance, simultaneously because the accuracy and the sensitivity of pertinent instruments, is not intended to disturbance and the people tramples the error that can cause measurement around it; Computing method are the modes that generally adopt at present, in use need to select sensor special, and part formula measurement parameter is (being higher than 5) etc. too much, cause that cost is too high, portioned product is at the weather information collection, for ET
0Value is subsidiary to be calculated, do not consider its accuracy and the local singularity of using, can not really provide and irrigate the closely-related water demand of crop, the specificity accuracy inadequately, does not possess long-range issuing function, can not notify the user in time to adjust and irrigate strategy, battery working time is short in addition, or needs external power source, mounting or dismounting inconvenience.
Summary of the invention
The purpose of this invention is to provide and a kind ofly rely on the collection of less information and calculate and obtain the moon/day reference crop tatol evapotranspiration, and then the acquisition water demand of crop and irrigation volume, issuing relevant information by Ethernet or communication network mode and instruct the portable type measuring delivery system of irrigating, is that water-saving irrigation provides new foundation with the least cost.
For achieving the above object, technical scheme of the present invention provides a kind of portable reference crop total evapotranspiration measuring system, and comprise with lower device: sensor groups is used to gather the reference crop total evapotranspiration measuring parameter; Gather main frame, be connected, be used for described reference crop total evapotranspiration measuring parameter is carried out data processing with described sensor groups.
Wherein, described sensor groups comprises one or more in temperature sensor, humidity sensor, optical sensor, wind speed wind direction sensor, the rainfall amount sensor.
Wherein, described system also is provided with and is convenient to the support that described system moves.
Wherein, described system also is provided with protective housing, and the waterproof that is used for described system is with dustproof.
Wherein, described collection main frame comprises: microprocessor is used for data processing; Memory module is connected with described microprocessor, is used for the data and the historical data of the evapotranspiration value of storage of collected and calculating crop; Sensor interface module is connected with described microprocessor; Power supply power supply and administration module are connected with described microprocessor; Be used for described system is powered and carries out power management.
Wherein, described collection main frame also comprises LCDs and touch key-press, is connected with described microprocessor respectively.
Wherein, described collection main frame also comprises clock module, is connected with described microprocessor, is used to described system that time reference is provided.
Wherein, described collection main frame also comprises the general-purpose serial bus USB module, is connected with described microprocessor, is used for described system and upper machine communication are realized data transmission and function setting.
Wherein, described collection main frame also comprises communication module, is connected with described microprocessor, is used for the data that described system obtains and carries out long-range issue.
Wherein, described communication module be global system for mobile communications GSM or/general packet radio service gprs.
Technique scheme has following advantage:
1, adopt less sensor to realize the accurate measurement of reference crop tatol evapotranspiration, its as a result related coefficient reach 0.945, and reduced equipment cost.
2, the application by Ethernet, GSM/GPRS makes system possess the function of remote access and issue, the restriction of no region, unified management, be formulation and the regional irrigation water capacity of formulating regional deficit irrigation schedule, work such as water resource utilization planning, the project planning design of the row of filling and management provide data to support.
3, have the smart sensor connecting interface, multiple computing formula is provided, configurable corrected parameter, geography information, soil information, Crop Information, historical information etc. make measurement result possess science, authority and accuracy, can improve local applicability.
4, adopt lithium battery power supply, low power dissipation design runs through wherein, facilitates for system's installation and maintenance.
Description of drawings
Fig. 1 is the structural representation of a kind of portable reference crop total evapotranspiration measuring system of the embodiment of the invention;
Fig. 2 is the built-in function structural drawing of main frame of a kind of portable reference crop total evapotranspiration measuring system of the embodiment of the invention.
Wherein, 1: gather main frame; 2: protective housing; 3: Temperature Humidity Sensor; 4: optical sensor; 5: wind speed wind direction sensor; 6: rain sensor; 7: gather main frame and show and key device; 8: support; 9: antenna.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
The invention belongs to modern agriculture irrigation, meteorology and scientific research surveying instrument field, can be used for environmental parameters such as environmental information, temperature, humidity, intensity of illumination, wind speed and direction, rainfall amount, soil moisture measures, calculate the crop reference tatol evapotranspiration according to measurement result, and then the acquisition water demand of crop, carry out long-range issue by Ethernet or communication network, for formulating regional deficit irrigation schedule and regional irrigation water capacity, work such as water resource utilization planning, the project planning design of the row of filling and management provide low-cost mancarried device and data foundation.
The system that the present invention makes up as shown in Figure 1, by gathering main frame 1, protective housing 2, Temperature Humidity Sensor 3, optical sensor 4, wind speed wind direction sensor 5 (reservation), rain sensor 6 (reservation), gathering main frame shows and button 7, support 8, antenna 9 is formed, gather main frame 1 and be responsible for gathering Temperature Humidity Sensor 3, optical sensor 4, reserve wind speed wind direction sensor 5 and rain sensor 6, the data of gathering are provided with by demonstration of collection main frame and key device 7 and show, by wireless and Ethernet device issue, protective housing 2 possesses IP67 water proof and dust proof effect, adopts support 8 to install and is convenient to move.
System is positioned over the open air, and real needs are selected respective formula, and respective sensor is installed in configuration, for example selects correction formula ET for use
0=-1.879+0.231 * T-0.018 * RH+0.181 * N1 (T: medial temperature, RH: medial humidity, N1: light application time); As select Peng Man-Meng Taisifa formula, then need sensors such as temperature, humidity, illumination, wind speed, wind direction, rainfall amount.
Can select simultaneously longitude and latitude, height above sea level, climate type, soil types, agrotype, the crop coefficient of testing location, further improve and measure computational accuracy and reliability.The system acquisition related data is calculated according to concrete formula and is obtained the reference crop tatol evapotranspiration, perhaps the weather information of obtaining customization by network is calculated, multiply by crop coefficient again, irrigated area is obtained the water demand of crop, irrigation volume, simultaneously the gained data are passed through GSM/GPRS, the long-range issue of Ethernet.
The functional structure of the collection main frame 1 of system as shown in Figure 2, constitute man-machine interface, clock module, memory module, USB (Universal Serial BUS by microprocessor MSP430F149, LCD and touch key-press, USB (universal serial bus)) module, Ethernet, GSM (GlobalSystem for Mobile Communications, global system for mobile communications)/GPRS (General Packet Radio Service, GPRS) communication module, power supply power supply and administration module, sensor interface module form.Super low power consuming single chip processor MSP430F149 handles related data and issue, and program, computing formula, historical data etc. all exist in the single-chip microcomputer, and clock module DS1302 provides the standard time benchmark for system; Memory module AT45DB081 is used for storage of collected and calculates ET
0The data and the historical data of value; The man-machine interface that LCD and button constitute shows in real time to the data of gathering, and is convenient to correlation parameter modification and setting; USB interface is used for carrying out communication with PC software; Ethernet, GSM/GPRS realize remote access, the issuing function of data; Sensor interface module is handled different information sensors respectively, and number of sensors is relevant according to selected formula, can further reduce the sensor cost; Power charging circuit LTC4055 is 2A lithium cell charging and feed circuit TPS780330220, cooperate power switch TPS2044 to finish the management that system energy consumption is carried out, TPS2044 management of sensor and communicating circuit, relevant interface do not have sensor or this moment not image data close line related, when feed circuit TPS780330220 can the realization system be in dormant state, voltage is adjusted to 2V from 3V and is further reduced power consumption, and sleeping/waking mechanism improves battery service time to greatest extent.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1, a kind of portable reference crop total evapotranspiration measuring and issuing system is characterized in that, comprises with lower device:
Sensor groups is used to gather the reference crop total evapotranspiration measuring parameter;
Gather main frame, be connected, be used for described reference crop total evapotranspiration measuring parameter is carried out data processing with described sensor groups.
2, portable reference crop total evapotranspiration measuring and issuing system as claimed in claim 1, it is characterized in that described sensor groups comprises one or more in temperature sensor, humidity sensor, optical sensor, wind speed wind direction sensor, the rainfall amount sensor.
3, portable reference crop total evapotranspiration measuring and issuing system as claimed in claim 1 is characterized in that, described system also is provided with is convenient to the support that described system moves.
4, portable reference crop total evapotranspiration measuring and issuing system as claimed in claim 1 is characterized in that, described system also is provided with protective housing, and the waterproof that is used for described system is with dustproof.
5, portable reference crop total evapotranspiration measuring and issuing system as claimed in claim 1 is characterized in that, described collection main frame comprises:
Microprocessor is used for data processing;
Memory module is connected with described microprocessor, is used for the data and the historical data of the evapotranspiration value of storage of collected and calculating reference crop;
Sensor interface module is connected with described microprocessor;
Power supply power supply and administration module are connected with described microprocessor; Be used for described system is powered and power management.
6, portable reference crop total evapotranspiration measuring and issuing system as claimed in claim 5 is characterized in that, described collection main frame also comprises LCDs and touch key-press, is connected with described microprocessor respectively.
7, portable reference crop total evapotranspiration measuring and issuing system as claimed in claim 5 is characterized in that, described collection main frame also comprises clock module, is connected with described microprocessor, is used to described system that time reference is provided.
8, portable reference crop total evapotranspiration measuring and issuing system as claimed in claim 5, it is characterized in that, described collection main frame also comprises the general-purpose serial bus USB module, is connected with described microprocessor, is used for described system and upper machine communication are realized data transmission and function setting.
9, portable reference crop total evapotranspiration measuring and issuing system as claimed in claim 5 is characterized in that, described collection main frame also comprises communication module, is connected with described microprocessor, is used for the data that described system obtains and carries out long-range issue.
10, portable reference crop total evapotranspiration measuring and issuing system as claimed in claim 9 is characterized in that, described communication module is global system for mobile communications GSM or general packet radio service gprs.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100781217A CN101482549A (en) | 2009-02-17 | 2009-02-17 | Portable reference crop total evapotranspiration measuring and issuing system |
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| CNA2009100781217A CN101482549A (en) | 2009-02-17 | 2009-02-17 | Portable reference crop total evapotranspiration measuring and issuing system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858759A (en) * | 2010-05-28 | 2010-10-13 | 天津工程师范学院 | Multi-channel agricultural measuring device based on MCU |
| CN102914331A (en) * | 2012-10-31 | 2013-02-06 | 江苏农林职业技术学院 | Portable agricultural environment parameter monitoring system based on wireless sensing |
| CN103512609A (en) * | 2012-10-29 | 2014-01-15 | 中国科学院地理科学与资源研究所 | Method and device for measuring indoor evaporation capacity in real-time and on-line mode |
| CN105277664A (en) * | 2015-12-04 | 2016-01-27 | 石河子大学 | Measurement device for pure transpiration amount of aquatic plant |
| CN105424340A (en) * | 2015-11-23 | 2016-03-23 | 北京林业大学 | Rapid field determinator for wafting evaporation losses for sprinkling irrigation |
| CN111833202A (en) * | 2020-07-14 | 2020-10-27 | 中国水利水电科学研究院 | Farmland evapotranspiration short-term prediction method considering crop coefficient dynamic change and rainfall |
| CN113273477A (en) * | 2021-04-19 | 2021-08-20 | 江苏农林职业技术学院 | Intelligent drip irrigation system and method |
| CN116530286A (en) * | 2023-04-12 | 2023-08-04 | 上海华维可控农业科技集团股份有限公司 | Water and fertilizer integrated irrigation management system and method for ecological high-standard farmland |
-
2009
- 2009-02-17 CN CNA2009100781217A patent/CN101482549A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858759A (en) * | 2010-05-28 | 2010-10-13 | 天津工程师范学院 | Multi-channel agricultural measuring device based on MCU |
| CN103512609A (en) * | 2012-10-29 | 2014-01-15 | 中国科学院地理科学与资源研究所 | Method and device for measuring indoor evaporation capacity in real-time and on-line mode |
| CN102914331A (en) * | 2012-10-31 | 2013-02-06 | 江苏农林职业技术学院 | Portable agricultural environment parameter monitoring system based on wireless sensing |
| CN105424340A (en) * | 2015-11-23 | 2016-03-23 | 北京林业大学 | Rapid field determinator for wafting evaporation losses for sprinkling irrigation |
| CN105424340B (en) * | 2015-11-23 | 2018-01-05 | 北京林业大学 | Evaporation loss field Quick testing instrument is flown away in one kind sprinkling irrigation |
| CN105277664A (en) * | 2015-12-04 | 2016-01-27 | 石河子大学 | Measurement device for pure transpiration amount of aquatic plant |
| CN111833202A (en) * | 2020-07-14 | 2020-10-27 | 中国水利水电科学研究院 | Farmland evapotranspiration short-term prediction method considering crop coefficient dynamic change and rainfall |
| CN111833202B (en) * | 2020-07-14 | 2022-06-03 | 中国水利水电科学研究院 | Farmland evapotranspiration short-term prediction method considering crop coefficient dynamic change and rainfall |
| CN113273477A (en) * | 2021-04-19 | 2021-08-20 | 江苏农林职业技术学院 | Intelligent drip irrigation system and method |
| CN116530286A (en) * | 2023-04-12 | 2023-08-04 | 上海华维可控农业科技集团股份有限公司 | Water and fertilizer integrated irrigation management system and method for ecological high-standard farmland |
| CN116530286B (en) * | 2023-04-12 | 2023-09-29 | 上海华维可控农业科技集团股份有限公司 | Water and fertilizer integrated irrigation management system and method for ecological high-standard farmland |
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