CN104089650A - Crop canopy temperature and soil moisture content data monitoring system and application thereof - Google Patents
Crop canopy temperature and soil moisture content data monitoring system and application thereof Download PDFInfo
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Abstract
The invention relates to a crop canopy temperature and soil moisture content data monitoring system and application thereof. The crop canopy temperature and soil moisture content data monitoring system is characterized by comprising a power source management unit, a microprocessor, a multiplexing switch, a data acquisition unit, an analog-digital converter, a data storage unit, a man-machine interaction unit and a communication unit, the microprocessor and the data acquisition unit are powered by the power source management unit, the data acquisition unit transmits collected crop canopy temperature and soil moisture content analog signals to the analog-digital converter through the multiplexing switch, the analog-digital converter transmits digital signals to the microprocessor, the microprocessor transmits data with engineering units to the data storage unit and the man-machine interaction unit respectively, running configuration parameters are input to the microprocessor through the man-machine interaction unit, the running status of the microprocessor is displayed through the man-machine interaction unit, the microprocessor controls the data storage unit to transmit the stored data to a server through the communication unit and receives measuring control signals through the communication unit, and the measuring control signals are sent by the server.
Description
Technical field
The present invention relates to a kind of data monitoring system and application thereof, particularly about a kind of crop canopy temperature and soil moisture content data monitoring system and application thereof.
Background technology
Day by day serious along with shortage of water resources and rainfall space distribution inequality, and the sharp increase of the rising of labor cost and ecologic environment pressure, the future development that irrigated area field irrigation and management must quantize to intensive, robotization and essence, taking the mode of production of sustainable development mode and people's water harmony as guarantee, realize information acquisition real time implementation, irrigation management intellectuality, the irrigation decision wisdom in water-saving irrigated area.The Real-time Collection of crop water information and precision irrigation decision-making, it is the agriculture part of modern superior management, taking accurately reach that field-crop irrigates in good time with in right amount as goal in research, for the sustainable development of the reasonable utilization of water resource and agricultural, environment, resource provides solid theory and basis.The object that essence amount is controlled irrigation tests is by observation and monitoring to crop physiology and ecology and soil water regime and field microclimate, upgrowth situation to crop is comprehensively analyzed, and truly reflects that crop water degree realizes " in good time " and " in right amount " of irrigation.
In field irrigation management, generally there are three kinds for the quantitative target of irrigation decision: 1) determine irrigation time and the water yield according to Soil Water situation; 2) according to crop, the physiological reaction information of water deficit is determined whether to need to irrigate; 3) determine time and the water requirements of crops of irrigating according to the variation of the subenvironment meteorologic factor of plant growth, determine that by meteorologic factor the Evapotranspiration of crop carries out irrigation decision.Crop canopies infrared temperature can reflect field-crop evaporation and transpiration situation, utilizes this index of canopy-difference in air temperature (canopy-air temperature difference, Tc-Ta) can carry out intuitively lack of water diagnosis.Crop root zone soil moisture content is the most directly to reflect that field-crop can utilize the index of moisture, can determine duty size in conjunction with soil characteristic parameter.When to field crops irrigation management, mostly people were to pay close attention to an aspect and carried out crop water research and drought diagnosis in the past; In irrigation decision index, most just consider that the some factors of above-mentioned three in soil-crop-Atmosphere System or certain two factor carry out theoretical research.Utilize crop canopies infrared temperature and soil moisture content to carry out comprehensive irrigation decision, can consider the directly perceived reaction of crop to water deficit, can accurately calculate again supplemental irrigation amount size; It is an important simple and convenient and practical method that can reach water saving, essence amount in modern Irrigation Project Design management.
The high speed development of modern industrial technology, for agricultural experiment is observed measuring equipment and sensor that degree of precision is provided, as the soil moisture measurement precision of can reach ± 0.1 degree of the measuring accuracy under the infrared probe normal temperature of medical grade, time-domain reflectomer TDR can reach 1%.But in actual applications, due to the difference of Field observation means and asynchronous, may cause data acquisition discontinuous, because observation personnel difference causes the problems such as subjective data error, therefore irrigation management and data processing can not be in time, accurately.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of crop canopy temperature and soil moisture content data monitoring system and application thereof, the present invention can gather crop canopy temperature and soil moisture content data accurately, continuously, thereby for the comprehensive irrigation decision in irrigated area provides in time, data accurately.
For achieving the above object, the present invention takes following technical scheme: a kind of crop canopy temperature and soil moisture content data monitoring system, is characterized in that: it comprises Power Management Unit, microprocessor, multiplexer switch, data acquisition unit, analog to digital converter, data storage cell, man-machine interaction unit and communication unit; Described Power Management Unit is described microprocessor and data acquisition unit power supply, described microprocessor is connected with described data acquisition unit by described multiplexer switch, described data acquisition unit transfers to described analog to digital converter by the moisture of the crop canopy temperature collecting, air themperature and humidity and soil, temperature and flow of water simulating signal by described multiplexer switch, and described analog to digital converter transfers to described microprocessor after converting simulating signal to digital signal; Data with engineering unit are transferred to respectively to described data storage cell with described microprocessor and man-machine interaction unit is stored and shows; By described man-machine interaction unit, to described microprocessor input operation configuration parameter, the running status of described microprocessor shows by described man-machine interaction unit; Described in described microprocessor control, data storage cell transfers to server by the data with engineering unit of storage by described communication unit, and the measuring control signal sending by described communication unit reception server.
Described microprocessor, multiplexer switch, analog to digital converter, data storage cell, man-machine interaction unit and communication unit are all arranged in a data processing case, and described data processing case is arranged on a vertical rod bottom.
Described Power Management Unit comprises solar panel, accumulator, charging-discharging controller and power supply output module; Described solar panel is arranged on described rod end, and described accumulator, charging-discharging controller and power supply output module are all arranged in a protection cabinet, and described protection cabinet is positioned at described data processing case lower end and is arranged in described vertical rod; Described solar panel is all connected with described power supply output module by described charging-discharging controller with accumulator, and described power supply output module is connected with described microprocessor; Solar radiant energy is converted into electric energy by described solar panel, part electric energy sends to described power supply output module by described charging-discharging controller, and described power supply output module is powered to described microprocessor and data acquisition unit respectively after converting electric energy to operating voltage; Another part electric energy is given described charge in batteries by described charging-discharging controller.
The operating voltage of described power supply output module conversion output is respectively 3.3V and 12V, and 3.3V voltage is given described microprocessor power supply, and 12V voltage is given described data acquisition unit power supply.
Described data acquisition unit comprises infrared temperature-test sensor, aerial temperature and humidity sensor, soil moisture sensor, soil temperature sensor and soil water potential sensor, described infrared temperature-test sensor is arranged on a transverse arm one end vertical with described vertical rod, and the other end of described transverse arm is positioned at described solar panel below and is fixedly installed in described vertical rod, described aerial temperature and humidity sensor setting is at described data processing upper box part, and described soil moisture sensor, soil temperature sensor and soil water potential sensor are all arranged in soil, described infrared temperature-test sensor, aerial temperature and humidity sensor, soil moisture sensor, soil temperature sensor and soil water potential sensor are by the crop canopy temperature collecting, the moisture of air themperature and humidity and soil profile, the simulating signal of temperature and the flow of water by wire transmission in described data processing case, described microprocessor is by controlling described multiplexer switch successively by the crop canopy temperature collecting, the moisture of air themperature and humidity and soil profile, the analog signal transmission of temperature and the flow of water is to described analog to digital converter, described analog to digital converter transfers to described microprocessor after converting the simulating signal receiving to digital signal.
The scope of the simulating signal that described data acquisition unit collects is 0～2500mV.
Described man-machine interaction unit comprises LCD display module and Keysheet module, described LCD display module is all connected with described microprocessor with Keysheet module, and described LCD display module is for showing the running state information of described microprocessor and the information of the moisture that comprises crop canopy temperature, air themperature and humidity and soil profile, temperature and the flow of water that described data acquisition unit collects; By described Keysheet module, the operation configuration parameter of described microprocessor is arranged.
One or more in GPRS communication module, usb communication module and 2.4G wireless short range communication module are set in described communication unit, and by realizing between described communication unit and server, GPRS's described microprocessor communicates by letter, usb communication or 2.4G wireless short range communication.
An application for described crop canopy temperature and soil moisture content data monitoring system, is characterized in that: the application process of crop canopy temperature, air themperature and the humidity that crop canopy temperature and soil moisture content data monitoring system monitor and the soil moisture content data that comprise moisture of soil profile, temperature and the flow of water is: (1) data acquisition and processing; Infrared temperature-test sensor converts the crop canopy temperature simulating signal of the n collecting point to digital signal by multiplexer switch and analog to digital converter successively, and digital data transmission to microprocessor is processed; Microprocessor adopts pre-set programs automatic rejection maximal value and minimum value wherein, and n-2 crop canopy temperature data of storage residue and mean value thereof also transfer to server simultaneously; Soil moisture sensor, soil temperature sensor and soil water potential sensor convert the simulating signal of moisture, temperature and the flow of water of the each layer of soil profile gathering to digital signal by multiplexer switch and analog to digital converter respectively successively, and digital data transmission to microprocessor is processed; The digital signal that the direct storing received of microprocessor arrives, and adopt pre-set programs to calculate upper soll layer to the average soil moisture in root layer 1m, result of calculation transfers to server; After aerial temperature and humidity sensor and infrared temperature-test sensor synchronous acquisition air themperature and humidity data, transfer to microprocessor and store and transfer to server simultaneously and process; (2) the comprehensive irrigation decision of many index Fuzzies; Crop canopy temperature, air themperature and the humidity gathering according to infrared temperature-test sensor, aerial temperature and humidity sensor, soil moisture sensor, soil temperature sensor and soil water potential sensor and moisture, temperature and the flow of water information of soil profile, server calculates crop canopy-air temperature difference and root of the crop layer average soil moisture content, its detailed process is: 1. by the Fuzzy Logic tool box GUI of Using MATLAB Program, the * .fis file that server produces according to default fuzzy rule carries out Fuzzy Calculation to crop canopy-air temperature difference and root of the crop layer average soil moisture content; 2. according to selected agrotype, the crop canopy-air temperature difference value calculating and root layer soil average moisture content and default weighted value, unique definite fuzzy decision with multiple indices model in server; 3. server judges arid situation according to fuzzy decision with multiple indices model, and according to root layer soil average moisture content to needing irrigation quantity to calculate, realize Irrigation Forecast to target area.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is owing to being provided with Power Management Unit, microprocessor, multiplexer switch, data acquisition unit, analog to digital converter, data storage cell, man-machine interaction unit and communication unit, microprocessor is by the measuring control signal of communication unit reception server, according to the measuring control signal receiving, microprocessor control data acquisition unit gathers crop canopy temperature, the moisture of air themperature and humidity and soil profile, temperature and flow of water signal, and after the simulating signal collecting is processed, transfer to data storage cell and store or transfer to server by communication unit, therefore the present invention can be accurate, gather continuously crop canopy temperature and soil moisture content data.2, the present invention is because the mode that adopts solar panel to absorb solar radiant energy conversion generating electric energy is to system power supply, lay electric wire without field again, thereby do not affect farming, therefore the present invention can adapt to lack the field environment of power supply supply, for large area of the present invention, remote use provide safeguard.3, crop canopy temperature, air themperature and the humidity that the present invention monitors and the moisture of soil profile, temperature and flow of water communication are to server, can be for the comprehensive irrigation decision in irrigated area after fuzzy logic is calculated, realize field precision irrigation management and control, for essence quantification and the intellectuality of irrigation management provide Data support.Based on above advantage, the present invention can be widely used in field agriculture feelings monitoring and management, farmland precision irrigation decision-making and management.
Brief description of the drawings
Fig. 1 is the illustrative view of functional configuration of crop canopy temperature of the present invention and soil moisture content data monitoring system
Fig. 2 is the position relationship schematic diagram of each parts in crop canopy temperature of the present invention and soil moisture content data monitoring system
Fig. 3 is the workflow diagram of crop canopy temperature of the present invention and soil moisture content data monitoring system
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, crop canopy temperature of the present invention and soil moisture content data monitoring system comprise Power Management Unit 1, microprocessor 2, multiplexer switch 3, data acquisition unit 4, analog to digital converter 5, data storage cell 6, man-machine interaction unit 7 and communication unit 8.Wherein, Power Management Unit 1 is powered for microprocessor 2 and data acquisition unit 4.Microprocessor 2 is connected with data acquisition unit 4 by multiplexer switch 3, data acquisition unit 4 is crossed multiplexer switch 3 by analog passband signals such as the moisture of the crop canopy temperature collecting, air themperature and humidity and soil, temperature and the flows of water and is transferred to analog to digital converter 5, and analog to digital converter 5 transfers to microprocessor 2 after converting the simulating signal receiving to digital signal.Microprocessor 2 is converted to the digital signal receiving to transfer to respectively data storage cell 6 after the data with engineering unit and man-machine interaction unit 7 is stored and shows.By man-machine interaction unit 7, to microprocessor 2 input operation configuration parameters, the running status of microprocessor 2 shows by man-machine interaction unit 7.Microprocessor 2 is controlled data storage cell 6 data with engineering unit of storage is transferred to server (not shown) by communication unit 8, and the measuring control signal sending by communication unit 8 reception servers.
In above-described embodiment, as shown in Figure 2, microprocessor 2, multiplexer switch 3, analog to digital converter 5, data storage cell 6, man-machine interaction unit 7 and communication unit 8 are all arranged in a data processing case 9, and data processing case 9 is arranged on vertical rod 10 bottoms.
In above-described embodiment, as shown in Figure 1, Power Management Unit 1 comprises solar panel 111, accumulator 112, charging-discharging controller 113 and power supply output module 114.As shown in Figure 2, solar panel 111 is arranged on vertical rod 10 tops, and accumulator 112, charging-discharging controller 113 and power supply output module 114 are all arranged in a protection cabinet 11, and protection cabinet 11 is positioned at data processing case 9 lower ends and is arranged in vertical rod 10.Solar panel 111 is all connected with power supply output module 114 by charging-discharging controller 113 with accumulator 112, and power supply output module 114 is connected with microprocessor 2.Solar panel 111 is converted into electric energy by absorbing sunshine by solar radiant energy, part electric energy sends to power supply output module 114 by charging-discharging controller 113, and power supply output module 114 is powered to microprocessor 2 and data acquisition unit 4 respectively after converting the electric energy receiving to operating voltage; Another part electric energy charges by charging-discharging controller 113 accumulators 112, and charging-discharging controller 113 is not overcharged and overdischarge for the protection of accumulator 112.
In above-described embodiment, the operating voltage of power supply output module 114 conversion outputs is respectively 3.3V and 12V.Wherein, 3.3V voltage is powered to microprocessor 2, and 12V voltage is powered to data acquisition unit 4.
In above-described embodiment, as shown in Figure 1, data acquisition unit 4 comprises infrared temperature-test sensor 41, aerial temperature and humidity sensor 42, soil moisture sensor 43, soil temperature sensor 44 and soil water potential sensor 45.As shown in Figure 2, infrared temperature-test sensor 41 is arranged on transverse arm 12 one end vertical with vertical rod 10, and the other end of transverse arm 12 is positioned at solar panel 111 belows and is fixedly installed in vertical rod 10.Aerial temperature and humidity sensor 42 is arranged on data processing case 9 tops.Soil moisture sensor 43, soil temperature sensor 44 and soil water potential sensor 45 are all arranged in soil.Infrared temperature-test sensor 41, aerial temperature and humidity sensor 42, soil moisture sensor 43, soil temperature sensor 44 and soil water potential sensor 45 are by the crop canopy temperature collecting, the moisture of air themperature and humidity and soil profile, the simulating signal of temperature and the flow of water by wire transmission to data processing case 9, microprocessor 2 in data processing case 9 is by controlling multiplexer switch 3 successively by the crop canopy temperature collecting, the moisture of air themperature and humidity and soil profile, the analog signal transmission of temperature and the flow of water is to analog to digital converter 5, analog to digital converter 5 transfers to microprocessor 2 after converting the simulating signal receiving to digital signal.
In above-described embodiment, the scope of the simulating signal that data acquisition unit 4 collects is 0～2500mV.
In above-described embodiment, man-machine interaction unit 7 comprises LCD display module 71 and Keysheet module 72, LCD display module 71 is all connected with microprocessor 2 with Keysheet module 72, and LCD display module 71 is for showing the running state information of microprocessor 2 and the information of the moisture that comprises crop canopy temperature, air themperature and humidity and soil profile, temperature and the flow of water etc. that data acquisition unit 4 collects.By Keysheet module 72, the operation configuration parameter of microprocessor 2 is arranged.
In above-described embodiment, GPRS (general packet radio service technology is set in communication unit 8, General Packet Radio Service) communication module 81, USB (Universal Serial Bus, USB (universal serial bus)) one or more in communication module 82 and 2.4G wireless short range communication module 83, by realizing between communication unit 8 and server (not shown), GPRS's microprocessor 2 communicates by letter, usb communication or 2.4G wireless short range communication.
As shown in Figure 3, the course of work of crop canopy temperature of the present invention and soil moisture content data monitoring system is:
1) Power Management Unit 1 is given after microprocessor 2 power supplies, and the measuring control signal that first microprocessor 2 receives server to whether by communication unit 8 judges; As receive the measuring control signal of server, perform step 2), otherwise, judge timing controlled data acquisition unit 4 gathers corresponding signal; Gather corresponding signal if start timing controlled data acquisition unit 4, perform step 2), otherwise the measuring control signal that continues to whether to receive by communication unit 8 server judges.
2) microprocessor 2 is controlled infrared temperature-test sensor 41 in data acquisition unit 4, aerial temperature and humidity sensor 42, soil moisture sensor 43, soil temperature sensor 44 and soil water potential sensor 45 by multiplexer switch 3 moisture to crop canopy temperature, air themperature and humidity and soil profile, temperature and flow of water signal is gathered respectively.
3) analog passband signal that data acquisition unit 4 collects is crossed after multiplexer switch 3 transfers to analog to digital converter 5 and is converted digital signal to, and transfers to microprocessor 2.Microprocessor 2 is converted to the digital signal receiving to transfer to data storage cell 6 after the data with engineering unit and store, and transfers to server by communication unit 8.
4) microprocessor 2 enters low-power consumption mode, and controls data acquisition unit 4 and stop gathering corresponding signal.
Adopt crop canopy temperature, air themperature and the humidity that the monitoring system of crop canopy temperature of the present invention and soil moisture content data monitors and the soil moisture content data transmission that comprises moisture of soil profile, temperature and flow of water information to server, can be for the decision-making of field crops precision irrigation after fuzzy logic is calculated, its concrete application process is:
(1) data acquisition and processing;
As shown in Figure 1, infrared temperature-test sensor 41 converts the crop canopy temperature simulating signal of the n collecting point to digital signal by multiplexer switch 3 and analog to digital converter 5 successively, and digital data transmission to microprocessor 2 is processed.Microprocessor 2 adopts after pre-set programs automatic rejection maximal value and minimum value wherein, the mean value of n-2 crop canopy temperature data of storage residue and this n-2 crop canopy temperature data, and n-2 crop canopy temperature data and mean value thereof are transferred to server (not shown) simultaneously process.
As shown in Figure 1, soil moisture sensor 43, soil temperature sensor 44 and soil water potential sensor 45 convert the simulating signal of moisture, temperature and the flow of water of the each layer of soil profile gathering to digital signal by multiplexer switch 3 and analog to digital converter 5 respectively successively, and digital data transmission to microprocessor 2 is processed.The digital signal that the direct storing received of microprocessor 2 arrives, and adopt pre-set programs to calculate upper soll layer to the average soil moisture in root layer 1m, result of calculation transfers to server (not shown).
As shown in Figure 1, aerial temperature and humidity sensor 42 and infrared temperature-test sensor 41 synchronous acquisition air themperature and humidity datas, and transfer to microprocessor 2 and store, transfer to server (not shown) simultaneously.
(2) the comprehensive irrigation decision of many index Fuzzies;
Crop canopy temperature, air themperature and the humidity gathering according to infrared temperature-test sensor 41, aerial temperature and humidity sensor 42, soil moisture sensor 43, soil temperature sensor 44 and soil water potential sensor 45 and the moisture of soil profile, temperature and flow of water information, server calculates crop canopy-air temperature difference and root of the crop layer average soil moisture content, and its detailed process is:
1. by Fuzzy Logic tool box GUI (the Graphical User Interface of Using MATLAB Program, graphical user interface), server carries out Fuzzy Calculation according to the * .fis file of default fuzzy rule to crop canopy-air temperature difference and root of the crop layer average soil moisture content.
2. according to selected agrotype, the crop canopy-air temperature difference value calculating and root layer soil average moisture content and default weighted value, unique definite fuzzy decision with multiple indices model in server.
3. server judges arid situation (moistening, light drought, arid) according to fuzzy decision with multiple indices model, and according to root layer soil average moisture content to needing irrigation quantity to calculate, realize Irrigation Forecast to target area.
The various embodiments described above are only for illustrating the present invention; wherein the structure of each parts, connected mode and method step etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (9)
1. crop canopy temperature and a soil moisture content data monitoring system, is characterized in that: it comprises Power Management Unit, microprocessor, multiplexer switch, data acquisition unit, analog to digital converter, data storage cell, man-machine interaction unit and communication unit; Described Power Management Unit is described microprocessor and data acquisition unit power supply, described microprocessor is connected with described data acquisition unit by described multiplexer switch, described data acquisition unit transfers to described analog to digital converter by the moisture of the crop canopy temperature collecting, air themperature and humidity and soil, temperature and flow of water simulating signal by described multiplexer switch, and described analog to digital converter transfers to described microprocessor after converting simulating signal to digital signal; Data with engineering unit are transferred to respectively to described data storage cell with described microprocessor and man-machine interaction unit is stored and shows; By described man-machine interaction unit, to described microprocessor input operation configuration parameter, the running status of described microprocessor shows by described man-machine interaction unit; Described in described microprocessor control, data storage cell transfers to server by the data with engineering unit of storage by described communication unit, and the measuring control signal sending by described communication unit reception server.
2. a kind of crop canopy temperature as claimed in claim 1 and soil moisture content data monitoring system, it is characterized in that: described microprocessor, multiplexer switch, analog to digital converter, data storage cell, man-machine interaction unit and communication unit are all arranged in a data processing case, and described data processing case is arranged on a vertical rod bottom.
3. a kind of crop canopy temperature as claimed in claim 2 and soil moisture content data monitoring system, is characterized in that: described Power Management Unit comprises solar panel, accumulator, charging-discharging controller and power supply output module; Described solar panel is arranged on described rod end, and described accumulator, charging-discharging controller and power supply output module are all arranged in a protection cabinet, and described protection cabinet is positioned at described data processing case lower end and is arranged in described vertical rod; Described solar panel is all connected with described power supply output module by described charging-discharging controller with accumulator, and described power supply output module is connected with described microprocessor; Solar radiant energy is converted into electric energy by described solar panel, part electric energy sends to described power supply output module by described charging-discharging controller, and described power supply output module is powered to described microprocessor and data acquisition unit respectively after converting electric energy to operating voltage; Another part electric energy is given described charge in batteries by described charging-discharging controller.
4. a kind of crop canopy temperature as claimed in claim 3 and soil moisture content data monitoring system, it is characterized in that: the operating voltage of described power supply output module conversion output is respectively 3.3V and 12V, 3.3V voltage is given described microprocessor power supply, and 12V voltage is given described data acquisition unit power supply.
5. a kind of crop canopy temperature and the soil moisture content data monitoring system as described in claim 2 or 3 or 4, is characterized in that: described data acquisition unit comprises infrared temperature-test sensor, aerial temperature and humidity sensor, soil moisture sensor, soil temperature sensor and soil water potential sensor, described infrared temperature-test sensor is arranged on a transverse arm one end vertical with described vertical rod, and the other end of described transverse arm is positioned at described solar panel below and is fixedly installed in described vertical rod, described aerial temperature and humidity sensor setting is at described data processing upper box part, and described soil moisture sensor, soil temperature sensor and soil water potential sensor are all arranged in soil, described infrared temperature-test sensor, aerial temperature and humidity sensor, soil moisture sensor, soil temperature sensor and soil water potential sensor are by the crop canopy temperature collecting, the moisture of air themperature and humidity and soil profile, the simulating signal of temperature and the flow of water by wire transmission in described data processing case, described microprocessor is by controlling described multiplexer switch successively by the crop canopy temperature collecting, the moisture of air themperature and humidity and soil profile, the analog signal transmission of temperature and the flow of water is to described analog to digital converter, described analog to digital converter transfers to described microprocessor after converting the simulating signal receiving to digital signal.
6. a kind of crop canopy temperature as claimed in claim 5 and soil moisture content data monitoring system, is characterized in that: the scope of the simulating signal that described data acquisition unit collects is 0～2500mV.
7. a kind of crop canopy temperature and the soil moisture content data monitoring system as described in claim 1 or 2 or 3 or 4 or 6, it is characterized in that: described man-machine interaction unit comprises LCD display module and Keysheet module, described LCD display module is all connected with described microprocessor with Keysheet module, and described LCD display module is for showing the running state information of described microprocessor and the information of the moisture that comprises crop canopy temperature, air themperature and humidity and soil profile, temperature and the flow of water that described data acquisition unit collects; By described Keysheet module, the operation configuration parameter of described microprocessor is arranged.
8. a kind of crop canopy temperature and the soil moisture content data monitoring system as described in claim 1 or 2 or 3 or 4 or 6, it is characterized in that: one or more in GPRS communication module, usb communication module and 2.4G wireless short range communication module are set in described communication unit, and by realizing between described communication unit and server, GPRS's described microprocessor communicates by letter, usb communication or 2.4G wireless short range communication.
9. an application for the crop canopy temperature as described in claim 1～8 any one and soil moisture content data monitoring system, is characterized in that: the application process of crop canopy temperature, air themperature and the humidity that crop canopy temperature and soil moisture content data monitoring system monitor and the soil moisture content data that comprise moisture of soil profile, temperature and the flow of water is:
(1) data acquisition and processing;
Infrared temperature-test sensor converts the crop canopy temperature simulating signal of the n collecting point to digital signal by multiplexer switch and analog to digital converter successively, and digital data transmission to microprocessor is processed; Microprocessor adopts pre-set programs automatic rejection maximal value and minimum value wherein, and n-2 crop canopy temperature data of storage residue and mean value thereof also transfer to server simultaneously;
Soil moisture sensor, soil temperature sensor and soil water potential sensor convert the simulating signal of moisture, temperature and the flow of water of the each layer of soil profile gathering to digital signal by multiplexer switch and analog to digital converter respectively successively, and digital data transmission to microprocessor is processed; The digital signal that the direct storing received of microprocessor arrives, and adopt pre-set programs to calculate upper soll layer to the average soil moisture in root layer 1m, result of calculation transfers to server;
After aerial temperature and humidity sensor and infrared temperature-test sensor synchronous acquisition air themperature and humidity data, transfer to microprocessor and store and transfer to server simultaneously and process;
(2) the comprehensive irrigation decision of many index Fuzzies;
Crop canopy temperature, air themperature and the humidity gathering according to infrared temperature-test sensor, aerial temperature and humidity sensor, soil moisture sensor, soil temperature sensor and soil water potential sensor and moisture, temperature and the flow of water information of soil profile, server calculates crop canopy-air temperature difference and root of the crop layer average soil moisture content, and its detailed process is:
1. by the Fuzzy Logic tool box GUI of Using MATLAB Program, the * .fis file that server produces according to default fuzzy rule carries out Fuzzy Calculation to crop canopy-air temperature difference and root of the crop layer average soil moisture content;
2. according to selected agrotype, the crop canopy-air temperature difference value calculating and root layer soil average moisture content and default weighted value, unique definite fuzzy decision with multiple indices model in server;
3. server judges arid situation according to fuzzy decision with multiple indices model, and according to root layer soil average moisture content to needing irrigation quantity to calculate, realize Irrigation Forecast to target area.
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| CN104777286A (en) * | 2015-04-24 | 2015-07-15 | 中国水利水电科学研究院 | Multi-scale soil moisture content synergistic observation device |
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| WO2020193372A1 (en) * | 2019-03-27 | 2020-10-01 | Anuland Limited | An above and below ground autonomous sensor system for crop management |
| CN112215522A (en) * | 2020-10-29 | 2021-01-12 | 中国水利水电科学研究院 | Crop growth monitoring system, method, computer equipment and storage medium |
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| CN106093125A (en) * | 2016-07-26 | 2016-11-09 | 中国地质大学（武汉） | A kind of soil salt real-time monitored system and method based on Fundamentals of Mono-Chip Computers |
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| WO2020193372A1 (en) * | 2019-03-27 | 2020-10-01 | Anuland Limited | An above and below ground autonomous sensor system for crop management |
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| CN116222661A (en) * | 2023-02-07 | 2023-06-06 | 中国气象科学研究院 | Crop environment information acquisition device and drought monitoring system |
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