CN101216482B - Agricultural land environment monitoring device - Google Patents
Agricultural land environment monitoring device Download PDFInfo
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- CN101216482B CN101216482B CN2008100564795A CN200810056479A CN101216482B CN 101216482 B CN101216482 B CN 101216482B CN 2008100564795 A CN2008100564795 A CN 2008100564795A CN 200810056479 A CN200810056479 A CN 200810056479A CN 101216482 B CN101216482 B CN 101216482B
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Abstract
The invention discloses a farmland environment monitoring device, which comprises a soil water content sensor (1) and a soil conductivity sensor (2) combined on the tail end of a support rod (4), and an insulating ring (3) for isolating the soil water content sensor (1) from the soil conductivity sensor (2), wherein the support rod (4) has a hollow structure; the soil water content sensor (1) and the soil conductivity sensor (2) are connected with a sensor signal conditioning unit (7) through a coaxial line (5) in the support rod (4); a solar power supply (10) is used for supplying power to the device and transmitting voltage information to an information collection unit (8); and the information collection unit (8) is used for collecting signals outputted by the sensor signal conditioning unit (7), acquiring the solar intensity information according to the voltage information transmitted by the solar power supply (10) and transmitting data with a wireless transceiving module (9). By adopting the solar power supply for supplying power to the device, the invention can ensure the continuous normal operation of the device, and the wireless transceiving module can achieve long-distance data transmission.
Description
Technical field
The present invention relates to sun power and data acquisition technology field, relate in particular to a kind of solar powered, measured soil water percentage and conductivity and intensity of sunshine, be applied to the monitoring device of farm environment.
Background technology
The growth of crops farm environment residing with it is closely bound up, and soil moisture content, soil conductivity and intensity of sunshine are the important physical parameters that influences crop growth.Along with the continuous development of data acquisition technology, be used to measure the soil moisture content of farm environment and the sensor of soil conductivity and obtained using widely.
Soil moisture content is meant the quantity that contains moisture in a certain amount of soil, often represents to account for oven-dried soil percentage heavy or soil volume.Water is the lifeblood that guarantees crop growth, and direct relation the yield and quality of crops; The size of soil moisture content directly influence the growth of crop, and the grasp soil moisture content is in the variation of crop growth period, can rationally select for use the crops of plantation to reach and in time the farmland be irrigated.
Soil conductivity is the concentrated expression of soil salt, moisture, the content of organic matter, soil texture structure, for farmland operation important directive function is arranged.The foundation of measured soil conductivity is that the water soluble salt in the soil is a strong electrolyte, and its aqueous solution has electric action, and in certain concentration range, the salt content and the conductivity of solution are proportionate, salt content is high more, and the osmotic pressure of solution is big more, and conductivity is also big more.
Intensity of sunshine has material impact for the photosynthesis of crops.
In realizing process of the present invention; the inventor finds that there are the following problems at least in the prior art: the centralized power supply system that can not use large tracts of land to lay cables underground under farm environment; and power supply generally adopts common batteries; its serviceable life is shorter, and the periodic replacement battery still is that manpower labour cost aspect considers it all is worthless from energy resource consumption cost, environmental protection.In addition, the transmission range of signal is all nearer under farm environment, even the industrial bus technology of various practicalities is ripe day by day, still can't realize that the long distance of sensor output signal transmits by wired mode.
Summary of the invention
The problem that the embodiment of the invention will solve provides a kind of monitoring device of farm environment, to overcome the short and near defective of signal transmission distance of power supply life-span in the prior art.
For achieving the above object, the technical scheme of the embodiment of the invention provides a kind of monitoring device of farm environment, described device comprises: be compounded in terminal soil moisture content sensor (1) of support bar (4) and soil conductivity sensor (2), described soil moisture content sensor (1) and soil conductivity sensor (2) are separated by dead ring (3); Described support bar (4) is a hollow-core construction, and described soil moisture content sensor (1) is connected with sensor signal regulon (7) by the inner coaxial cable (5) of described support bar (4) with soil conductivity sensor (2); Sun-generated electric power (10) is used to described device power supply, and information of voltage is sent to information acquisition unit (8); Described information acquisition unit (8) is gathered the output information of described sensor signal regulon (7), and the information of voltage that sends according to described sun-generated electric power (10) obtains intensity of sunshine information, and carries out data transmission with radio receiving transmitting module (9).
Wherein, described soil moisture content sensor (1) is made up of a round metal cone and a becket.
Wherein, described soil conductivity sensor (2) is made up of four beckets.
Wherein, described dead ring (3) is made by the polyvinylchloride material.
Wherein, described sensor signal regulon (7) comprises oscillator, detecting circuit and operational amplifier.
Wherein, described information acquisition unit (8) comprises microprocessor (14), storer (15), level conversion unit (17) and computing amplifying unit (18); Described microprocessor (14) is used to gather soil moisture content and conductivity information, and the information of voltage that sends according to described sun-generated electric power (10) obtains intensity of sunshine information; Described storer (15) is used to preserve the information that described microprocessor (14) is gathered; It is the operation level of described information acquisition unit (8) that described level conversion unit (17) is used for the sun-generated electric power level conversion; Described computing amplifying unit (18) is used for the output voltage of described sun-generated electric power (10) is amplified.
Wherein, described information acquisition unit (8) also comprises reserve battery (16), when the electric weight deficiency of described sun-generated electric power (10) thinks that described device is powered, described information acquisition unit (8) will be enabled described reserve battery (16) automatically and be described device power supply, and send warning message.
Wherein, described microprocessor (14) is the single-chip microcomputer of MSP430F149 for model, and described storer (15) is the FLASH flash memory.
Wherein, described sun-generated electric power (10) is made of with charging control unit (13) polysilicon solar cell plate (11), accumulator (12); Described accumulator (12) is used to described device power supply; Described charging control unit (13) is used to control described polysilicon solar cell plate (11) and is described accumulator (12) charging; Described polysilicon solar cell plate (11) is used for information of voltage is sent to described information acquisition unit (8).
Wherein, described sensor signal regulon (7), information acquisition unit (8) and radio receiving transmitting module (9) place nerd pack (6) inside.
Technique scheme only is an optimal technical scheme of the present invention, has following advantage: the embodiment of the invention adopts sun-generated electric power that device is powered, and can continue operate as normal by assurance device; And the embodiment of the invention is transmitted data by radio receiving transmitting module, can grow the data transmission of distance.
Description of drawings
Fig. 1 is the contour structures synoptic diagram of monitoring device of a kind of farm environment of the embodiment of the invention;
Fig. 2 is the structural drawing of monitoring device of a kind of farm environment of the embodiment of the invention;
Fig. 3 is the structural drawing of a kind of sensor signal regulon of the embodiment of the invention.
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 contour structures synoptic diagram of the monitoring device of a kind of farm environment of the embodiment of the invention comprises as shown in Figure 1:
Be compounded in the soil moisture content sensor 1 and soil conductivity sensor 2 of support bar 4 ends, soil moisture content sensor 1 and soil conductivity sensor 2 are separated by dead ring 3.Wherein, soil moisture content sensor 1 is made up of a round metal cone and a becket; Soil conductivity sensor 2 is made up of four beckets; Dead ring 3 is by Polyvinylchloride, and promptly the PVC material is made.Can be by regulating the degree of depth of soil moisture content sensor 1 and soil conductivity sensor 2 insertion soil, with water percentage and the conductivity information of obtaining the different soils section.
Sun-generated electric power 10 is used to described device power supply, and information of voltage is sent to information acquisition unit 8; The output information of information acquisition unit 8 pick-up transducers signal conditioning units 7, the information of voltage that sends according to sun-generated electric power 10 obtains intensity of sunshine information, and carries out data transmission with radio receiving transmitting module 9.Wherein sun-generated electric power 10 is positioned at the complete machine top, guarantees that solar panel receives solar light irradiation to greatest extent.
Sensor signal regulon 7, information acquisition unit 8 and radio receiving transmitting module 9 place nerd pack 6 inside, can guarantee that the waterproof under the farm environment is kept away dirt, and nerd pack 6 and support bar 4 are connected by nut.
The structure of the monitoring device of a kind of farm environment of the embodiment of the invention as shown in Figure 2, wherein, information acquisition unit 8 can be gathered agricultural land soil water percentage and conductivity and intensity of sunshine information in real time, measurement data is kept in the external memory storage 15, carries out message exchange by radio receiving transmitting module 9 with the external world.Described information acquisition unit 8 comprises microprocessor 14, storer 15, level conversion unit 17 and computing amplifying unit 18; Microprocessor 14 is used to gather soil moisture content and conductivity information, and the information of voltage that sends according to sun-generated electric power 10 obtains intensity of sunshine information; Storer 15 is used to preserve the information that microprocessor 14 is gathered; It is the operation level of information acquisition unit 8 that level conversion unit 17 is used for the sun-generated electric power level conversion; Computing amplifying unit 18 is used for the output voltage of sun-generated electric power 10 is amplified.Information acquisition unit 8 also comprises reserve battery 16, and when the electric weight deficiency of sun-generated electric power 10 thinks that described device is powered, information acquisition unit 8 will be enabled reserve battery 16 automatically and be described device power supply, and send warning message.Wherein, microprocessor 14 is the single-chip microcomputer of MSP430F149 for model, and this MSP430F149 single-chip microcomputer has 8 tunnel 12 AD, can be implemented in super low-power consumption operation under the different working modes; Storer 15 can be selected the FLASH flash memory for use, and metrical information is kept among the outside FLASH15, also can read the metrical information of having preserved from outside FLASH15.
Sun-generated electric power 10 is made of with charging control unit 13 polysilicon solar cell plate 11, accumulator 12; Accumulator 12 is used to described device power supply; Charging control unit 13 is used to control polysilicon solar cell plate 11 and is accumulator 12 chargings.Described polysilicon solar cell plate 11 receives the radiation of sunshine by day, and transform light energy is become electric energy, and charges to accumulator 12 under the effect of charging control unit 13; Simultaneously, accumulator 12 is powered to guarantee its continuous operate as normal for described device; The effect of charging control unit 13 is to be its charging when accumulator 12 electric weight are lower than setting value, can prevent that again it from overcharging when accumulator 12 chargings.Polysilicon solar cell plate 11 receives the radiation of sunshine by day, and transform light energy is become electric energy, and charges to accumulator 12 via charging control unit 13.Another vital role of polysilicon solar cell plate 11 is to serve as optical sensor among the present invention, and timing supervision farm environment intensity of sunshine changes.The output voltage of polysilicon solar cell plate 11 and intensity of sunshine are single valued relation to be changed, information acquisition unit 8 is gathered the output voltage of the polysilicon solar cell plate 11 after computing amplifying unit 18 amplifies by 12 AD of MSP430F149 single-chip microcomputer, and then knows the farmland intensity of sunshine.
The structure of sensor signal regulon 7 as shown in Figure 3, comprise oscillator, detecting circuit and operational amplifier, its input is respectively the signal of soil moisture content sensor 1 and 2 transmissions of soil conductivity sensor, output signal is a two-way normal voltage signal (0-5V), represents soil moisture content value and soil conductivity value respectively.Present embodiment can while measured soil water percentage and soil conductivity based on dielectric theory and frequency domain method.With reference to Fig. 3, soil moisture content sensor 1 signal outputs to operational amplifier through detecting circuit after being converted to high-frequency signal through high frequency oscillator again, is converted to the output of 0-5V normal voltage; The signal of soil conductivity sensor 2 outputs to operational amplifier through detecting circuit after being converted to low frequency signal through LF oscillator again, is converted to the output of 0-5V normal voltage.The output signal of information acquisition unit 8 by 12 AD pick-up transducers signal conditioning units 7 of MSP430F149 single-chip microcomputer is to obtain agricultural land soil water percentage and soil conductivity information.
Radio receiving transmitting module 9 is by SPI (Serial Peripheral Interface, serial peripheral interface) the MSP430F149 single-chip microcomputer with information acquisition unit 8 inside is connected, be used for sending metrical information or receiving control command, realized the wireless transmission of data to the external world.
For guaranteeing that this device has as far as possible little power consumption, system state is divided into whole dormancy and operate as normal two states.Wherein, whole dormancy promptly makes sensor signal regulon 7, information acquisition unit 8 be in the state that approaches zero-power with radio receiving transmitting module 9.Active mode is divided into and regularly activates and activate at random, and can changing by flexible setting for parameters at interval of regularly activating.For example, soil moisture content changes fluctuation greatly between flush period, regularly activates at interval and can suitably reduce relatively, otherwise can suitably extend.Certainly, sun-generated electric power 10 can't guarantee real time charging during rainfall, and this is energy confession and the contradiction of asking exactly.In case to this solution be detect soil moisture near or reach saturation point, can progressively prolong and activate at interval, to guarantee effective utilization of accumulator 12 electric weight.Activate at random by the outside and artificially launch activation signal, radio receiving transmitting module 9 receives behind this signal activated sensors signal conditioning unit 7 and information acquisition unit 8 again, and measurement data is sent in real time.In addition, when night or sunshine, deficiency was thought accumulator 12 chargings, should in time turn-off charge controller, make this part energy consumption reduce to zero.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the invention and use solar powered, can gather agricultural land soil water percentage and soil conductivity information in real time, the polysilicon solar cell plate is changed to monitor farm environment as the intensity of illumination sensor sunshine, data transmission adopts wireless mode, can grow the data transmission of distance.The present invention is compounded in soil moisture content sensor and soil conductivity sensor the end of support bar on overall construction design, realized " plug and play " under the farm environment.
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. the monitoring device of a farm environment is characterized in that, described device comprises:
Be compounded in terminal soil moisture content sensor (1) of support bar (4) and soil conductivity sensor (2), described soil moisture content sensor (1) and soil conductivity sensor (2) are separated by dead ring (3);
Described support bar (4) is a hollow-core construction, and described soil moisture content sensor (1) is connected with sensor signal regulon (7) by the inner coaxial cable (5) of described support bar (4) with soil conductivity sensor (2);
Sun-generated electric power (10) is used to described device power supply, and information of voltage is sent to information acquisition unit (8);
Described information acquisition unit (8) is gathered the output information of described sensor signal regulon (7), and the information of voltage that sends according to described sun-generated electric power (10) obtains intensity of sunshine information, and carries out data transmission with radio receiving transmitting module (9).
2. the monitoring device of farm environment according to claim 1 is characterized in that described soil moisture content sensor (1) is made up of a round metal cone and a becket.
3. the monitoring device of farm environment according to claim 1 is characterized in that described soil conductivity sensor (2) is made up of four beckets.
4. the monitoring device of farm environment according to claim 1 is characterized in that described dead ring (3) is made by the polyvinylchloride material.
5. the monitoring device of farm environment according to claim 1 is characterized in that described sensor signal regulon (7) comprises oscillator, detecting circuit and operational amplifier.
6. the monitoring device of farm environment according to claim 1 is characterized in that described information acquisition unit (8) comprises microprocessor (14), storer (15), level conversion unit (17) and computing amplifying unit (18);
Described microprocessor (14) is used to gather soil moisture content and conductivity information, and the information of voltage that sends according to described sun-generated electric power (10) obtains intensity of sunshine information;
Described storer (15) is used to preserve the information that described microprocessor (14) is gathered;
It is the operation level of described information acquisition unit (8) that described level conversion unit (17) is used for the sun-generated electric power level conversion;
Described computing amplifying unit (18) is used for the output voltage of described sun-generated electric power (10) is amplified.
7. as the monitoring device of farm environment as described in the claim 6, it is characterized in that, described information acquisition unit (8) also comprises reserve battery (16), when the electric weight deficiency of described sun-generated electric power (10) thinks that described device is powered, described information acquisition unit (8) will be enabled described reserve battery (16) automatically and be described device power supply, and send warning message.
8. as the monitoring device of farm environment as described in the claim 6, it is characterized in that described microprocessor (14) is the single-chip microcomputer of MSP430F149 for model, described storer (15) is the FLASH flash memory.
9. the monitoring device of farm environment according to claim 1 is characterized in that, described sun-generated electric power (10) is made of with charging control unit (13) polysilicon solar cell plate (11), accumulator (12);
Described accumulator (12) is used to described device power supply;
Described charging control unit (13) is used to control described polysilicon solar cell plate (11) and is described accumulator (12) charging;
Described polysilicon solar cell plate (11) is used for information of voltage is sent to described information acquisition unit (8).
10. as the monitoring device of claim 1 to 9 farm environment as described in each, it is characterized in that described sensor signal regulon (7), information acquisition unit (8) and radio receiving transmitting module (9) place nerd pack (6) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100564795A CN101216482B (en) | 2008-01-18 | 2008-01-18 | Agricultural land environment monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100564795A CN101216482B (en) | 2008-01-18 | 2008-01-18 | Agricultural land environment monitoring device |
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| Publication Number | Publication Date |
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| CN101216482A CN101216482A (en) | 2008-07-09 |
| CN101216482B true CN101216482B (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100564795A Expired - Fee Related CN101216482B (en) | 2008-01-18 | 2008-01-18 | Agricultural land environment monitoring device |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581713B (en) * | 2009-06-15 | 2012-11-07 | 山西农业大学 | Farmland information collector |
| CN101793891B (en) * | 2010-03-10 | 2013-02-13 | 中国农业大学 | Sensor control device and soil moisture monitoring device comprising same |
| CN101936935B (en) * | 2010-06-29 | 2013-06-12 | 中国农业大学 | Device for measuring multiple parameters of soil |
| JP5510833B2 (en) * | 2011-02-16 | 2014-06-04 | カシオ計算機株式会社 | Portable terminal device and program |
| CN102967325B (en) * | 2012-11-15 | 2015-04-29 | 华南农业大学 | Sensor mounting bracket used in fields |
| CN104076068B (en) * | 2013-03-26 | 2017-02-15 | 深圳市深安旭传感技术有限公司 | Vehicle and monitoring alarm apparatus for environment inside vehicle |
| CN106033085A (en) * | 2015-04-15 | 2016-10-19 | 中国农业科学院农业信息研究所 | Soil salinity and alkalinity positioning and monitoring device |
| CN104938309B (en) * | 2015-06-29 | 2018-11-20 | 高翔 | Solar battery inductor |
| CN105021660B (en) * | 2015-08-05 | 2017-11-03 | 东南大学 | Can quantitative detection pollution the soil body in volatile organic matter concentration air infiltration probe |
| CN106841567A (en) * | 2017-01-18 | 2017-06-13 | 清华大学 | A kind of compact low consumption soil moisture automatic tester of use Wireless Data Transmission |
| CN107421990B (en) * | 2017-05-16 | 2020-03-31 | 朱拥军 | In-situ soil salinity detection device and method |
| CN108204837A (en) * | 2018-01-10 | 2018-06-26 | 常州泽惠天地环境科技有限公司 | Support the complex sensor device and application method of field irrigation intelligent decision |
| CN109738615A (en) * | 2019-03-05 | 2019-05-10 | 青海大学 | Soil information collecting device |
| CN110793575A (en) * | 2019-11-23 | 2020-02-14 | 浙江托普云农科技股份有限公司 | Farmland information monitoring device |
| CN111044429B (en) * | 2019-12-25 | 2023-09-08 | 泰克索尔技术(深圳)有限公司 | Vehicle-mounted soil texture information real-time acquisition system |
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2008
- 2008-01-18 CN CN2008100564795A patent/CN101216482B/en not_active Expired - Fee Related
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