CN201909785U - Soil moisture monitoring system based on GPRS (General Packet Radio Service) transmission channel - Google Patents
Soil moisture monitoring system based on GPRS (General Packet Radio Service) transmission channel Download PDFInfo
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- CN201909785U CN201909785U CN2010206105983U CN201020610598U CN201909785U CN 201909785 U CN201909785 U CN 201909785U CN 2010206105983 U CN2010206105983 U CN 2010206105983U CN 201020610598 U CN201020610598 U CN 201020610598U CN 201909785 U CN201909785 U CN 201909785U
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Abstract
The utility model discloses a soil moisture monitoring system based on a GPRS (General Packet Radio Service) transmission channel. The monitoring system comprises a soil moisture sensor used for detecting soil moisture information, an analog-digital converter used for converting an analog signal into a digital signal, a microprocessor used for processing the soil moisture information and a GPRS module used for connecting a general computer platform, wherein the soil moisture sensor, the analog-digital converter, the microprocessor and the GPRS module are sequentially connected. The monitoring system can visually obtain the soil moisture information through the matching relationship between the voltage change of the sensor and the soil moisture; and the soil moisture information is transmitted to a background system by utilizing the GPRS transmission channel; therefore, the soil moisture can be quickly and more accurately collected, analyzed and forecast on the general computer platform.
Description
Technical field
The utility model relates to soil moisture content monitoring field, relates in particular to a kind of soil moisture content monitoring system based on the GPRS transmission channel.
Background technology
" assurance China grain security must be worked on the three areas simultaneously, and the one, guarantee the bottom line of ploughing, the 2nd, cultivate high yield fine, the 3rd, recover and the cultivation high production soil.The above two Party Central Committee pays close attention, and must not allow the latter become short slab ".Therefore strengthen the research and the cooperation of deep-going are carried out in soil environment monitoring forecast and protection aspect; the complete investigation soil has situation now; formulation science and rigorous enquiry data system and demonstration system; can effectively analyze soil moisture content; information such as soil salt and acidity; the good fertile cultivated land resource of protection promotes grain effectively to produce.
Under the overall background of global warming, frequent natural calamity such as high temperature and drought take place, and soil moisture content certainly will be worse and worse.When soil moisture content is not good, excessively use chemical fertilizer to tend to cause soil compaction in addition, cause soil moisture content seriously to lack.In the course of time, the situation of " breeding is arranged and do not have good soil " very easily occurs, and causes the soil moisture content disappearance serious, and this is with the grain security of serious threat China.And that people obtain the mode of agricultural land information is very limited, mainly be to pass through manual measurement, acquisition process need consume great amount of manpower, and by using wireless sensor network can effectively reduce the manpower consumption and to the influence of farm environment, obtaining and make substance environment and Crop Information accurately.
The utility model content
The technical matters that the utility model mainly solves provides a kind of soil moisture content monitoring system based on the GPRS transmission channel, this system can be delivered to background system with information on soil moisture by GPRS automatically, is implemented on the general calculation machine platform soil moisture content is carried out adding up rapidly and more accurately, analyzing and predict.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of soil moisture content monitoring system based on the GPRS transmission channel is provided, comprise the soil moisture content sensor that is used to detect information on soil moisture, be used for analog signal conversion become digital signal analog to digital converter, be used for microprocessor that soil moisture content information is handled and the GPRS module that is used to be connected universal computer platform, described soil moisture content sensor, analog to digital converter, microprocessor and GPRS sequence of modules are connected.
Wherein, described soil moisture content sensor comprises at least one grounded probe, emission standing wave reflective probe, oscillator, analog line driver, detection filter circuit and differential amplifier circuit, described grounded probe is inserted into the signal that is used to reflect emission standing wave reflective probe in the soil, described oscillator is connected with analog line driver, described emission standing wave reflective probe and analog line driver are also linked detection filter circuit, detection filter circuit is connected with differential amplifier circuit, and differential amplifier circuit is connected with described analog to digital converter.
Wherein, the needle end part of described emission standing wave reflective probe is tip shape.
Wherein, described grounded probe is more than two, and described grounded probe to be positioned at emission standing wave reflective probe be on the circle in the center of circle.
Wherein, described oscillator is 60M～200MHz oscillator.
The beneficial effects of the utility model are: what be different from prior art obtains unfavourable defect to information on soil moisture, the utility model is by the variation of the voltage of sensor and the corresponding relation of soil moisture, can know soil tilth information intuitively, and utilize the GPRS transmission channel to be delivered to background system, be implemented on the general calculation machine platform and can carry out adding up rapidly and more accurately, analyzing and predict soil moisture content.
Description of drawings
Fig. 1 is the block diagram of the utility model based on the soil moisture content monitoring system embodiment of GPRS transmission channel;
Fig. 2 is the soil moisture content sensor construction block scheme of the utility model based on the soil moisture content monitoring system embodiment of GPRS transmission channel.
Embodiment
By describing technology contents of the present utility model, structural attitude in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
Soil moisture content is meant the humidity of soil, i.e. the situation of water cut number in the crop topsoil soils.
GPRS is meant the abbreviation of general packet radio service technology, and its English is: GeneralPacket Radio Service, it is a kind of mobile data services that the gsm mobile telephone user can use, and is a kind of wireless communication technology.
See also Fig. 1, the utility model is based on the soil moisture content monitoring system of GPRS transmission channel, comprise the soil moisture content sensor 10 that is used to detect information on soil moisture, be used for analog signal conversion become digital signal analog to digital converter 11, be used for microprocessor 12 that soil moisture content information is handled and the GPRS module 13 that is used to be connected universal computer platform, described soil moisture content sensor 10, analog to digital converter 11, microprocessor 12 and GPRS module 13 are linked in sequence.
What be different from prior art obtains unfavourable defect to information on soil moisture, the utility model is based on the soil moisture content monitoring system of GPRS transmission channel, the variation of the voltage by sensor and the corresponding relation of soil moisture, can know soil tilth information intuitively, and utilize the GPRS transmission channel to be delivered to background system, be implemented on the general calculation machine platform and can carry out adding up rapidly and more accurately, analyzing and predict soil moisture content.
In one embodiment, described soil moisture content sensor 10 comprises at least one grounded probe 101, emission standing wave reflective probe 102, oscillator 103, analog line driver 104, detection filter circuit 105 and differential amplifier circuit 106, described grounded probe 101 is inserted into the signal that is used to reflect emission standing wave reflective probe 102 in the soil, described oscillator 103 is connected with analog line driver 104, described emission standing wave reflective probe 102 is with analog line driver 104 and link detection filter circuit 105, detection filter circuit 105 is connected with differential amplifier circuit 106, and differential amplifier circuit 106 is connected with described analog to digital converter 11.
In one embodiment, the needle end part of described emission standing wave reflective probe 102 is tip shape.
In one embodiment, described grounded probe 101 is more than two, and described grounded probe 101 to be positioned at emission standing wave reflective probe 102 be on the circle in the center of circle.
In one embodiment, described oscillator 103 is 60M～200MHz oscillator.
The soil moisture content sensor adopts the Time Domain Reflectometry technology, utilizes water in the soil and difference between other medium specific inductive capacity and the development of time domain reflection measurement technology, has advantage quick, convenient and can the Continuous Observation soil moisture content.Flexible, high, the stable performance of measuring accuracy of this sensor preparation.The most popular in the world on-the-spot test soil moisture of Time Domain Reflectometry principle (TDR) principle, it is the electromagnetic wave of sensor emission certain frequency, electromagnetic wave is along probe transmission, return after arriving the bottom, the voltage of detection probe output, because the water cut of soil is depended in the variation of soil dielectric constant usually, then can calculate the water cut of soil by the relation of output voltage and moisture.Moisture is the principal element of decision soil dielectric constant.The specific inductive capacity of measured soil can directly stably react the true moisture of various soil.But the percent by volume of TDR soil moisture sensor measured soil moisture, irrelevant with the mechanism of soil itself, this principle is most popular in the world at present soil moisture sensor measuring method.
The utility model can be monitored code requirement design according to soil moisture content, be used to monitor soil moisture content, soil water potential, salinity and acidity four specific characters, simultaneously supporting software can according to user's needs set flexibly the soil moisture content parameter sampling period and memory cycle, patrol to survey and call together and survey data and analyze function such as data.Simultaneity factor power supply is optional for civil power/solar cell for supplying power, and standby back-up source, but assurance system operate as normal still under rainy weather or municipal power failure.
Native system can effectively be monitored various places soil moisture content environment, automatically information on soil moisture is delivered to background system by GPRS, be implemented on the general calculation machine platform (hardware, software etc.) design comprehensive soil environment Information Statistics, analysis, query function can be provided, simultaneously can be automatically, the information service system moved continuously.Set up man-machine interaction client and Internet-browser user interface, can monitor in many ways fast, flexibly that the area under one's jurisdiction soil environment changes, and can add up rapidly and more accurately, analyzes and predict.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. soil moisture content monitoring system based on the GPRS transmission channel, it is characterized in that: comprise the soil moisture content sensor that is used to detect information on soil moisture, be used for analog signal conversion become digital signal analog to digital converter, be used for microprocessor that soil moisture content information is handled and the GPRS module that is used to be connected universal computer platform, described soil moisture content sensor, analog to digital converter, microprocessor and GPRS sequence of modules are connected.
2. the soil moisture content monitoring system based on the GPRS transmission channel according to claim 1, it is characterized in that: described soil moisture content sensor comprises at least one grounded probe, emission standing wave reflective probe, oscillator, analog line driver, detection filter circuit and differential amplifier circuit, described grounded probe is inserted into the signal that is used to reflect emission standing wave reflective probe in the soil, described oscillator is connected with analog line driver, described emission standing wave reflective probe and analog line driver are also linked detection filter circuit, detection filter circuit is connected with differential amplifier circuit, and differential amplifier circuit is connected with described analog to digital converter.
3. the soil moisture content monitoring system based on the GPRS transmission channel according to claim 2 is characterized in that: the needle end part of described emission standing wave reflective probe is tip shape.
4. the soil moisture content monitoring system based on the GPRS transmission channel according to claim 3 is characterized in that: described grounded probe is more than two, and described grounded probe to be positioned at emission standing wave reflective probe be on the circle in the center of circle.
5. the soil moisture content monitoring system based on the GPRS transmission channel according to claim 4 is characterized in that: described oscillator is 60M～200MHz oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206105983U CN201909785U (en) | 2010-11-16 | 2010-11-16 | Soil moisture monitoring system based on GPRS (General Packet Radio Service) transmission channel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206105983U CN201909785U (en) | 2010-11-16 | 2010-11-16 | Soil moisture monitoring system based on GPRS (General Packet Radio Service) transmission channel |
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| CN201909785U true CN201909785U (en) | 2011-07-27 |
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| CN2010206105983U Expired - Fee Related CN201909785U (en) | 2010-11-16 | 2010-11-16 | Soil moisture monitoring system based on GPRS (General Packet Radio Service) transmission channel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507907A (en) * | 2011-11-17 | 2012-06-20 | 安徽农业大学 | Novel portable soil moisture monitoring instrument based on GPS (Global Position System)/GPRS (General Packet Radio Service)/GSM (Global System for Mobile Communications) |
| CN102680660A (en) * | 2012-03-26 | 2012-09-19 | 奕永庆 | Open type soil moisture content monitoring and forecasting system |
| CN104123444A (en) * | 2014-07-10 | 2014-10-29 | 中国水利水电科学研究院 | Real-time irrigation forecasting system and method based on regional soil moisture status monitoring and remote sensing data |
-
2010
- 2010-11-16 CN CN2010206105983U patent/CN201909785U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507907A (en) * | 2011-11-17 | 2012-06-20 | 安徽农业大学 | Novel portable soil moisture monitoring instrument based on GPS (Global Position System)/GPRS (General Packet Radio Service)/GSM (Global System for Mobile Communications) |
| CN102680660A (en) * | 2012-03-26 | 2012-09-19 | 奕永庆 | Open type soil moisture content monitoring and forecasting system |
| CN104123444A (en) * | 2014-07-10 | 2014-10-29 | 中国水利水电科学研究院 | Real-time irrigation forecasting system and method based on regional soil moisture status monitoring and remote sensing data |
| CN104123444B (en) * | 2014-07-10 | 2018-02-23 | 中国水利水电科学研究院 | Real-time irrigation forecast system and method based on region Soil Moisture Monitoring and remotely-sensed data |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20131116 |