CN110596341A - Integrated soil and surrounding environment detection system - Google Patents
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- CN110596341A CN110596341A CN201910574622.8A CN201910574622A CN110596341A CN 110596341 A CN110596341 A CN 110596341A CN 201910574622 A CN201910574622 A CN 201910574622A CN 110596341 A CN110596341 A CN 110596341A
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
The embodiment of the invention provides an integrated soil and surrounding environment detection system, which comprises a multi-principle data sensing device and a detection data processing module, wherein the multi-principle data sensing device adopts a form of combining a plurality of probes and a sensor chip and is used for measuring environmental data and soil data; the detection data processing module comprises an anti-interference unit, a detection index correction unit and a voltage reference source correction unit, wherein the anti-interference unit is used for solving the problem of mutual interference of data with the same principle in soil and environment data induction detection; the detection system integrates various measurement parameters into the same equipment by adopting ways such as intelligent chip control, circuit processing, calculation model, structural model and the like, is convenient to measure and accurate in data, and provides interactive data.
Description
Technical Field
The invention relates to the field of soil and environment data detection and the technical field of data collection and application, in particular to an integrated soil and surrounding environment detection system.
Background
The existing soil detection sensor detects soil temperature, soil humidity, soil PH and soil electrolyte content, adopts a thermistor to seal the soil humidity in a hollow metal steel needle, uses a resistance method, namely adopts a mode of measuring soil resistance and high-frequency electromagnetic waves between electrodes, and detects the soil electrolyte content based on a standing wave principle; similarly, the PH value of the soil is measured by measuring the change of the soil resistance between the electrodes, and the resistance change condition of a reference standard electrode (calomel electrode) is adopted to indicate other electrodes, such as a glass electrode measuring method, so that the PH value of the soil is finally obtained.
Problems and disadvantages of the prior art:
because the measurement methods interfere with each other, data such as soil temperature, humidity, PH, electrolyte content and the like can be obtained only by adopting separate measurement equipment, and no integrated system capable of measuring multiple soil and environmental data exists; even if multiple probes are used in an integrated mode, manual dial positions are adopted for measurement by adopting a dial switch method, and measured data are large in interference and inaccurate.
The detection system effectively solves the technical problems in soil and environment data induction detection, and achieves the effects of high efficiency, accuracy, stability and integration.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an integrated soil and surrounding environment detection sensor device, which adopts the technologies of single chip microcomputer control, circuit processing, structural models and the like, solves the problem of mutual interference of measured data, integrates various measured parameters into the same equipment, can perform intelligent correction between data, and is convenient for measurement and automatic data interaction with a system platform.
The invention provides an integrated soil and surrounding environment detection system, which comprises a multi-principle data sensing device and a detection data processing module, wherein the multi-principle data sensing device adopts a form of combining a plurality of probes and a sensor chip and is used for measuring environmental data and soil data;
the detection data processing module comprises an anti-interference unit and a detection index correction unit, the detection index correction unit is used for correcting a detection index reference source, and the anti-interference unit is used for solving the problem of mutual interference of multi-principle data in soil and environmental data induction detection.
Furthermore, the detection system also comprises an information transmission module, and is a high-efficiency, low-energy-consumption and accurate integrated wireless environment data sensing detection system.
Further, the multi-principle data sensing device detects and transmits at least eight but not limited to the following eight soil and environment data: soil temperature, moisture, PH, EC, air temperature, humidity, light and carbon dioxide detection data.
Further, the hardware part of the multi-principle data sensing apparatus includes: the soil detection probe is positioned at the lower part of the whole device, the detection end of the probe extends into soil, the environment data detection module adopts a sensor chip to acquire environment data, and the sensor chip is arranged at the upper part of the detection system; the detection data processing module is arranged on a fixed part in the detection system, is connected with the soil detection probe and the environmental data detection module, and is used for processing detected data.
Further, the multi-principle data sensing device detects data in a manner including, but not limited to, electromagnetic wave, resistance, light energy, heat sensitivity, equivalent organic content, fluorescence spectroscopy, inductively coupled plasma emission spectroscopy, radiation, and microwave detection.
Furthermore, the anti-interference unit adopts power isolation, or adopts a mode of setting a plurality of groups of independent power supplies, or adopts a photoelectric coupling mode to measure each data respectively.
Preferably, a group of power supplies are arranged in the detection system, a relay is arranged in the anti-interference unit, the corresponding power supply is triggered by the relay according to each soil data to be measured, different soil data information is measured at different time periods, and the corresponding relay of the control unit is turned on.
Preferably, an independent power supply is arranged in the detection system corresponding to each soil data.
Further, the detection index correction unit corrects the measurement index by calibrating the measurement data reference.
Furthermore, the detection index correction unit realizes mutual correction of the measured data by switching the reference source.
Furthermore, the detection system also comprises a voltage source correction unit for correcting the voltage reference source, the voltage reference source correction unit corrects the power voltage by setting a reference source voltage calibration value, the DATA amount corresponding to the reference source voltage calibration value is DATA1, the DATA detected by the reference source are DATA2 and DATA1-DATA2, and the DATA detected by each channel is corrected by the variation of the reference source.
Further, the detection data are transmitted to the cloud computing platform and the application receiving platform through the modes including but not limited to infrared, wifi, bluetooth and mobile data transmission.
Further, the detection system further comprises a positioning module.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
the invention mainly integrates soil temperature, soil humidity, soil pH value, soil electrolyte content, external environment temperature, external environment humidity, organic matter content of external environment CO2 and the like, environment illumination intensity and environment atmospheric pressure in the same equipment, and is convenient to automatically measure and automatically interacts data with a system platform. The interference of measuring the soil humidity, temperature and PH value among probes in the same device is solved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an integrated soil and surrounding environment detection system according to the present invention;
FIG. 2 is a schematic view of an orientation of a detection probe provided in an embodiment of the present invention;
FIG. 3 is a schematic partial view of a detection probe provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram of the power connections for soil moisture detection according to the present invention;
FIG. 5 is a schematic diagram of the power connections for the soil electrolyte content EC detection of the present invention;
FIG. 6 is a schematic diagram of power connections for soil pH detection according to the present invention;
FIG. 7 is a circuit diagram of data output according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an integrated soil and surrounding environment detection system, as shown in fig. 1, the detection system comprises a multi-principle data sensing device and a detection data processing module, wherein the multi-principle data sensing device adopts a form of combining a multi-probe and a sensor chip and is used for measuring environmental data and soil data;
the detection data processing module comprises an anti-interference unit and a detection index correction unit, the detection index correction unit is used for correcting a detection index reference source, and the anti-interference unit is used for solving the problem of mutual interference of multi-principle data in soil and environmental data induction detection.
Further, the hardware part of the multi-principle data sensing apparatus includes: the soil detection probe is positioned at the lower part of the whole device, the detection end of the probe extends into soil, the environment data detection module adopts a sensor chip to acquire environment data, and the sensor chip is arranged at the upper part of the detection system; the detection data processing module is arranged on a fixed part in the detection system, is connected with the soil detection probe and the environmental data detection module, and is used for processing detected data.
The detection system provided by the invention is divided into an upper part, a middle part and a lower part which are connected in sequence. The upper part of the detection system is provided with a communication data processing module, and the communication data processing module comprises an antenna and is used for processing data sent by other parts and sending the data to external receiving equipment.
The middle part is a supporting body, and a lead and a detection circuit board are arranged in the supporting body.
The lower part comprises a probe supporting piece, a detection circuit board, a probe and a plurality of nuts; the probe supporting piece is internally provided with a plurality of probes, the probes are arranged along the radial direction of the probe supporting piece, one end of each probe protrudes out of the upper surface of the probe supporting piece, and the other end of each probe extends into the soil; the circuit board is installed in the up end of probe support piece, probe one end is equipped with the screw thread, fixes through the nut.
Fig. 2 is a schematic view of an orientation of a detection probe according to an embodiment of the present invention, and as shown in fig. 2, the lower portion of the sensor device is provided with a plurality of probes or detection ends of the detection sensor, the lower portion is further provided with a detection signal processing board, and each probe or detection end of the lower portion is respectively connected to the detection signal processing board.
Further, the multi-principle data sensing device detects data in a manner including, but not limited to, electromagnetic wave, resistance, light energy, heat sensitivity, equivalent organic content, fluorescence spectroscopy, inductively coupled plasma emission spectroscopy, radiation, and microwave detection.
Due to the diversity of the detection principle, interference exists between detected data, and the solution to the problem is as follows: 1. the method that 3 groups of power supplies are isolated and not shared is adopted to solve the problem (the 3 groups of power supplies can not supply power at the same time, and soil EC, soil PH value and soil soluble electrolyte have a relationship); 2. a method for measuring soil humidity, EC and PH relay power supply switching is adopted; 3. and adopting a photoelectric coupling method.
Further, the detection index correction unit corrects the measurement index by calibrating the measurement data reference; the detection index correction unit realizes mutual correction of the measured data by adopting a mode of switching reference sources.
Furthermore, the detection system also comprises a voltage source correction unit for correcting the voltage reference source, the voltage reference source correction unit corrects the power voltage by setting a reference source voltage calibration value, the DATA amount corresponding to the reference source voltage calibration value is DATA1, the DATA detected by the reference source are DATA2 and DATA1-DATA2, and the DATA detected by each channel is corrected by the variation of the reference source.
Further, the detection data are transmitted to the cloud computing platform and the application receiving platform through the modes including but not limited to infrared, wifi, bluetooth and mobile data transmission.
Further, the detection system further comprises a positioning module.
Example 1
The present embodiment only shows one form of the detection device manufactured based on the above detection system, and the present invention is not limited to the product form provided by the embodiment, and all the calculation modules are optimally arranged to be reasonably arranged in the device to improve the integration level.
In this embodiment, the sensor system can detect various indexes in the air environment, including but not limited to temperature, humidity, CO2 equivalent organic matter, and illumination detection; and detecting various indexes in the soil, including but not limited to soil temperature, soil humidity, soil electrolyte content EC and soil pH value. The temperature, humidity, CO2 equivalent organic matter and illumination detection of environmental indexes are detected by an integrated chip and are connected with a main Chip (CPU) through I2C bus cascade.
The detection data processing module provided by the invention comprises the detection index correction unit and the anti-interference unit, the detection data processing module is arranged in the middle part of the whole device, the middle part also comprises a necessary supporting component, the anti-interference unit is used for solving the problem of mutual interference of same principle data in soil and environment data induction detection, and the voltage reference source correction unit automatically corrects detection deviation according to the change of power supply voltage.
In the embodiment, the soil temperature is measured by a resistance method, a probe for measuring the soil humidity is a probe for transmitting high-frequency electromagnetic waves, and 3 probes for reflecting the high-frequency electromagnetic waves are matched with the probe to finish the soil humidity measurement; the soil PH detection probe is manufactured based on the principle that different metal acid-base activities generate voltage difference between metal electrodes, and the specific PH value of the measured soil is acidic and is calibrated according to the voltage.
Based on the above measurement method, in the detection system of the present invention, several probes are integrated in the same detection device, and since the detection principle involves live detection many times, mutual interference is generated to the measured data, and the specific interference sources are: 1. different detection probes are provided with different voltages, 2, different data are detected by using one probe, so that mutual measurement is interfered, the interference is caused because the measured soil pH value, the soil electrolyte content and the soil humidity are all related to the electrolyte in the soil, and the movement of the electrolyte ions in the soil is generated by the voltage measured by the probe. In order to obtain accurate and real detection data, the invention adopts a power isolation method to respectively measure the data.
The following describes in detail the implementation process of the anti-interference unit, and how to implement the detection of data information in a plurality of soils by the detection probe of the present invention by the detection system of the present invention:
detecting soil EC and PH data, if the soil EC data are detected by adopting a resistance method, applying voltage to a probe, thus being incapable of measuring the PH data; when soil humidity data is measured, 4 probes need to be started, other 3 electrodes are required to be grounded, and the purpose of measurement cannot be achieved.
The solution to the above problems is: 1. the method that 3 groups of power supplies are isolated and not shared is adopted to solve the problem (the 3 groups of power supplies can not supply power at the same time, and soil EC, soil PH value and soil soluble electrolyte have a relationship); 2. a method for measuring soil humidity, EC and PH relay power supply switching is adopted; 3. and adopting a photoelectric coupling method.
1. The specific technical scheme of the method for switching the power supply is as follows: the system comprises a detection system, a power supply, an anti-interference unit, a relay, a power supply and a corresponding relay, wherein the detection system is internally provided with a group of power supplies, the relay is arranged in the anti-interference unit, the corresponding power supplies are triggered by the relay aiming at each soil data to be measured, different soil data information is measured at different time periods, and the corresponding relay is controlled to be opened.
2. The specific technical scheme of the method adopting the independent power supply is as follows: an independent power supply is arranged in the detection system corresponding to each soil data.
As shown in fig. 4 to 6, during measurement, the power supply relay for measuring soil humidity is turned on by measuring soil humidity in a time-sharing manner, the power supply relay for measuring soil electrolyte content is turned on by measuring soil electrolyte content, the power supply relay for measuring soil PH is turned on by measuring soil PH, and the measured data amount is combined for a time-sharing period and specific duration detection data is set, for example, when the soil PH value is detected, the detection time is half an hour; other data were tested by turning on the other data alone for 10 minutes or 5 minutes.
The detection system is also provided with an information transmission module for detecting regularly according to set time, is provided with a memory with certain capacity, can store data for at least several days and uploads regularly, and is an efficient, low-energy-consumption and accurate integrated wireless environment data sensing detection system. Based on the above embodiment, a function of detecting a plurality of pieces of data information in time division in the probe detection device can be realized.
Example 2
On the basis of embodiment 1, this embodiment further discloses specific contents of a voltage reference source correction unit, and since the voltage will continuously drop in practical use due to the fact that the LI battery is used for supplying power, although a voltage-stabilizing reference source exists, the voltage drops below the reference source, which causes great deviation of a detection circuit, and thus frequent charging of equipment is required.
The power supply voltage is corrected by setting a reference source voltage calibration value, the DATA amount corresponding to the reference source voltage VREF calibration value is DATA bits DATA2 and DATA1-DATA2 detected by a reference source of DATA1, and the DATA detected by each channel AD is corrected by the variation of the reference source.
Example 3
Detection index correction unit application and data transmission
The present embodiment only shows one form of the detection device manufactured based on the above detection system, and the present invention is not limited to the product form provided by the embodiment, and all the calculation modules or units are optimally arranged to be reasonably arranged in the device to improve the stability of the voltage reference source, the integration level and the accuracy of data transmission.
The detection data processing system obtains soil and environment data signals through a multi-principle data sensing device, interference processing of first-level data signals is carried out through different mechanisms and special arrangement of a plurality of sensing probes, eight different detection data signal amplification and voltage reference source correction units obtain stable signals, and then the stable signals further enter an electronic anti-interference unit for data processing (see embodiments 1 and 2). The data processed with interference resistance further detects the index correction unit. Firstly, eight detection signals are matched with a calibration reference source, correlation calibration is carried out, and a digital model of each detection index is obtained through computer learning and calculation; for example, the total mathematical model of soil and moisture is f (x) = a/(x-b) + c, where the relevant ranges a =1.829, b = -0.84, c = -1.402; the data correlation was 95%. The mathematical model is further input to the detection index correcting means. The eight data models are corrected through the connection points of the correction unit, and stable and accurate soil and environment data are obtained through intelligent digital control and actual data unit conversion. The connection point correction which cannot be implemented is mainly corrected by an intelligent digital control technology, and the measured data are mutually associated to further ensure the accurate determination of the data.
The detection index correction module also comprises unit conversion of data, namely conversion from an electronic signal to an actual detection index unit (such as pH O-14 and the like), and the data output by the detection index correction unit is the output data of the actual sensor.
The soil and environment sensing data of the invention are transmitted to a calculation platform, an application receiving platform, a mobile communication device and various servers through mobile wireless, infrared, WiFi, Bluetooth and the like. The sensing data can also be transmitted into various data application modules as platform application and correction application in the mode. One of the transmission circuit connections of this embodiment is as shown in fig. 7, and the communication between the data server and the sensor device of the present invention receives and stores the data uniformly, and can output the data to any development and management platform to learn, process and calculate the data to further develop and apply, and to rectify other devices to further research, develop and apply to the area or large area of land and environment.
In the detection system provided in this embodiment, the data server may also be a cloud server, and the communication mode between the data server and the detection device is wireless communication or is connected through a network cable.
The functions of the detection system provided by the invention include but are not limited to data collection, data synthesis, data interference resistance, data correction, cloud data feedback weight correction, energy consumption correction, wireless transmission and the like, and the data generated by the detection system can correspond to but are not limited to agriculture, environmental protection, resource information, government decision and the like.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. An integrated soil and surrounding environment detection system, which is characterized in that the detection system comprises a multi-principle data sensing device and a detection data processing module, wherein,
the multi-principle data sensing device adopts a form of combining a plurality of probes and a sensor chip and is used for measuring environmental data and soil data;
the detection data processing module comprises an anti-interference unit, a detection index correction unit and a voltage reference source correction unit, the detection index correction unit is used for correcting a detection index reference source, the anti-interference unit is used for solving the problem of mutual interference of multi-principle data in soil and environmental data induction detection, and the voltage reference source correction unit is used for stabilizing detection signal voltage and reducing energy consumption.
2. The integrated soil and surrounding environment detection system of claim 1, wherein said detection system further comprises an information transmission module, and is an efficient, low-energy-consumption, and accurate integrated wireless environment data sensing detection system.
3. The integrated soil and environment detection system of claim 1, wherein said multi-principle data sensing device detects and transmits at least eight but not limited to the following eight soil and environment data: soil temperature, moisture, PH, EC, air temperature, humidity, light and carbon dioxide detection data.
4. The integrated soil and surrounding environment detection system of claim 1, wherein the hardware portion of said multi-principle data sensing device comprises: the soil detection probe is positioned at the lower part of the whole device, the detection end of the probe extends into soil, the environment data detection module adopts a sensor chip to acquire environment data, and the sensor chip is arranged at the upper part of the detection system; the detection data processing module is arranged on a fixed part in the detection system, is connected with the soil detection probe and the environmental data detection module, and is used for processing detected data.
5. The integrated soil and surrounding environment detection system of claim 1, wherein the multi-principle data sensing device detects data by means including but not limited to electromagnetic waves, electrical resistance, optical energy, thermal sensitivity, equivalent organic content, fluorescence spectroscopy, inductively coupled plasma emission spectroscopy, radiation, microwave detection.
6. The integrated soil and surrounding environment detection system of claim 1, wherein the anti-interference unit measures the data separately by power isolation, or by providing several groups of independent power sources, or by photoelectric coupling.
7. The integrated soil and environment detection system as claimed in claim 6, wherein one or more sets of power supplies are provided in the detection system, a relay or an electronic switch is provided in the anti-interference unit, the corresponding power supply is triggered by the relay for each soil data to be measured, different soil data information is measured at different time periods, and the control unit opens the corresponding relay.
8. The integrated soil and environment detection system of claim 6, wherein an independent power source is provided for each soil data in said detection system.
9. The integrated soil and environment detection system as claimed in claim 1, wherein the detection index calibration unit calibrates the measurement index by calibrating the measurement data reference.
10. The integrated soil and environment detection system as claimed in claim 1, wherein the detection index calibration unit is configured to perform calibration between the measured data by switching reference sources.
11. The integrated soil and surrounding environment detection system as claimed in claim 1, further comprising a voltage source calibration unit for calibrating the voltage reference source, wherein the voltage reference source calibration unit calibrates the power voltage by setting a reference source voltage calibration value, the DATA amount corresponding to the reference source voltage calibration value is DATA1, the DATA detected by the reference source is DATA2, DATA1-DATA2, and the DATA detected by each channel is corrected by the variation of the reference source.
12. The integrated soil and surrounding environment detection system of any one of claims 2 to 11, wherein the detection data is transmitted to the cloud computing platform and the application receiving platform by means including but not limited to mobile data infrared, wifi, bluetooth.
13. The integrated soil and environment detection system of any one of claims 2 to 11, further comprising a positioning module.
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| CN111579751A (en) * | 2020-05-08 | 2020-08-25 | 广东农工商职业技术学院(农业部华南农垦干部培训中心) | High-precision soil sensor |
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