CN114137185A - Soil detection system based on Internet of things - Google Patents
Soil detection system based on Internet of things Download PDFInfo
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- CN114137185A CN114137185A CN202111434904.1A CN202111434904A CN114137185A CN 114137185 A CN114137185 A CN 114137185A CN 202111434904 A CN202111434904 A CN 202111434904A CN 114137185 A CN114137185 A CN 114137185A
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- 239000002689 soil Substances 0.000 title claims abstract description 169
- 238000001514 detection method Methods 0.000 title claims abstract description 63
- 238000012545 processing Methods 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000003993 interaction Effects 0.000 claims abstract description 11
- 238000012423 maintenance Methods 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 50
- 238000004891 communication Methods 0.000 claims description 29
- 238000004458 analytical method Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 8
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 7
- 239000011591 potassium Substances 0.000 claims description 7
- 229910052700 potassium Inorganic materials 0.000 claims description 7
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims description 6
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- 238000005457 optimization Methods 0.000 claims description 3
- 238000005527 soil sampling Methods 0.000 abstract description 4
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- 235000017491 Bambusa tulda Nutrition 0.000 description 9
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- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- 239000004571 lime Substances 0.000 description 1
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Food Science & Technology (AREA)
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Abstract
A soil detection system based on the Internet of things comprises a soil detection end, a system server end and a system client end, wherein the soil detection end is used for automatically controlling soil collection depth and collecting soil collection samples, and can also obtain state information data of detected soil; the system server comprises a data acquisition server, a database server and a data interaction server; the data interaction server is used for realizing data exchange among the soil detection end, the system server end and the system client end and analyzing and processing soil state information data; and the system client is used for realizing system management and maintenance and inquiring the real-time state of the soil for the user. The soil sample processing system has the advantages that the soil sampling depth is automatically controlled, the soil sampling samples are collected, the state information of soil can be detected, the soil sample processing is more convenient, the online detection and the remote monitoring are realized by means of the Internet of things technology, the working efficiency is improved, the detection speed is high, and the precision is high.
Description
Technical Field
The invention relates to the technical field of soil detection, in particular to a soil detection system based on the Internet of things.
Background
Soil environment monitoring means that the environment quality (or pollution degree) and the change trend thereof are determined by measuring representative values of factors affecting the soil environment quality. Soil monitoring generally refers to soil environment monitoring, and generally comprises technical contents of distribution sampling, sample preparation, analysis methods, result characterization, data statistics, quality evaluation and the like. A method for rapidly determining the content of available nutrients and certain chemical properties closely related to the nutritional status of plants in soil. Items that typically include the available nitrogen, phosphorus, potassium and soil pH as well as the soil lime requirements associated therewith; some trace elements are sometimes included in the test range. Soil testing is a systematic process consisting of the steps of collecting test samples, testing, applying test results and the like. According to the soil test result and referring to other related data, the soil fertility condition can be evaluated, so that a basis is provided for reasonable fertilization.
Soil organic matter (soilorganic matter, SOM) is an important component of soil nutrients, and therefore, detecting the organic matter content of soil is an important way to know the fertility of soil. While accurate, standard laboratory chemical analysis methods are too complex in analysis and testing procedures and expensive in analytical equipment, requiring operators to have high knowledge and skills, all of which limit their popularity and spread in the first line of agriculture.
Disclosure of Invention
The invention mainly aims to provide a soil detection system based on the Internet of things, which can automatically control the soil collection depth, collect soil collection samples and detect the state information of soil, so that the soil samples are more convenient to process, meanwhile, the online detection and remote monitoring are realized by means of the Internet of things technology, the working efficiency is improved, and the detection speed is high and the precision is high.
In order to achieve the above object, the present invention provides the following techniques:
a soil detection system based on the Internet of things comprises a soil detection end, a system service end and a system client end, wherein the soil detection end is provided with a plurality of soil detection ends which are respectively arranged in each soil environment needing soil detection,
the soil detection end is used for automatically controlling the soil collection depth and collecting soil collection samples, and can also obtain state information data of the detected soil;
the system server comprises a data acquisition server, a database server and a data interaction server; the data interaction server is used for realizing data exchange among the soil detection end, the system server end and the system client end and analyzing and processing soil state information data;
the system client is used for the user to realize system management and maintenance and inquire the real-time state of the soil.
Furthermore, the data acquisition server comprises a first port and a second port, the first port is connected with the soil detection end, the acquired soil state information data is transmitted to the first port, and the received data is converted and stored in the database server; the second port is connected with the system client in a tcp/ip mode and used for receiving a data request sent by the system client and transmitting the specified soil state information data to the client;
the database server is used for providing services such as inquiry, update, transaction management, indexing, cache, inquiry optimization, safety and multi-user access control for client application; on one hand, the data acquisition server provides a structured query language database API interface through graphical programming software to store acquired data into a database, and on the other hand, the data acquisition server processes requests of data query or data manipulation of a client, such as account information, elevator information and sampling data;
the real-time waveform of the main circuit current of the soil detection system is acquired by graphical programming software.
Furthermore, the soil detection end comprises a sensing unit, a processing unit, a collecting unit and a communication unit;
the collecting unit comprises a collecting probe, a collecting barrel and a collecting mechanism, and the collecting mechanism automatically controls the depth of the collecting probe penetrating into soil and collects soil collecting samples;
the sensing unit comprises a plurality of soil moisture sensors, soil conductivity sensors, soil ph sensors, soil humidity sensors, soil temperature and humidity sensors and soil nitrogen phosphorus and potassium sensors which are arranged on the acquisition probe and used for acquiring the ph value, the temperature, the moisture, the conductivity, the soil nitrogen phosphorus and potassium content and the multilayer soil temperature and moisture conductivity of the soil;
the processing unit comprises a sensing signal acquisition circuit and an ARM processor, and the acquisition mechanism is connected with the processing unit and used for controlling the acquisition probe and calculating, processing signals, storing and monitoring data;
the communication unit is used for sending the monitoring data to the system server.
Furthermore, the system client comprises a soil statistics module, a soil analysis module and an abnormity alarm module;
the soil statistical module is used for carrying out statistics on the collected soil state information data according to a specified time period and drawing a graph;
the soil analysis module comprises a same-working-condition comparison and analysis unit and a same-period comparison and analysis unit, the same-working-condition comparison and analysis unit is used for comparing and appointing total energy consumption in appointed time of two elevators according to week and generating a graph, and the same-period comparison and analysis unit is used for comparing soil state information data difference values of two adjacent weeks in the appointed time period of the same soil detection end and generating a difference value curve;
and the abnormal alarm module compares the data difference value with the rated tolerance deviation value according to the soil state information data difference value of the same soil detection end in two adjacent weeks within a specified time period, and alarms if the data difference value is larger than a normal value.
Furthermore, the communication unit comprises a bluetooth communication module, the bluetooth communication module adopts a CSR integrated bluetooth module 86 series, a bluetooth signal codec and a bluetooth signal transceiver are integrated in the bluetooth communication module, the bluetooth signal codec is connected to the signal interaction end of the embedded processor, and the bluetooth signal transceiver is connected to the output end of the bluetooth signal codec.
Furthermore, the communication unit further comprises a WiFi communication module, the WiFi communication module adopts an ESP8266 integrated WiFi module, and a baseband chip and a microstrip antenna are integrated inside the WiFi communication module, wherein the baseband chip is used for performing modulation and demodulation operations on WiFi signals, and the microstrip antenna is used for performing wireless signal transceiving operations.
Further, the bottom of gathering the probe is located to the sensing unit, the both ends of gathering a section of thick bamboo link up, it is the columnar structure to gather the probe, gather in probe threaded connection in gathering a section of thick bamboo, gather the mechanism including gathering groove, rotor and rotatable parts, gather the groove and offer on gathering the probe and be the heliciform structure, the longitudinal length in gathering the groove is greater than the maximum distance between the bottom of gathering a section of thick bamboo and the collection probe bottom, the one end sliding fit of rotor is in gathering the inslot, the rotor links firmly on rotatable parts, rotatable parts locates between rotor and the collection section of thick bamboo and is used for driving the rotor along the circumferential direction of gathering the probe.
Furthermore, the bottom of the collection cylinder is provided with three supporting supports which are circumferentially arranged, the supporting supports are circumferentially and uniformly distributed along the bottom end of the collection cylinder, and the longitudinal length of the collection groove is greater than the maximum distance between the bottom end of each supporting support and the bottom end of the collection probe.
Further, the bottom of gathering the probe is equipped with the flight, the collection mouth has been seted up to the side of gathering the probe, the collection chamber has been seted up to the inside of collecting the mouth, the bottom in collection chamber extends to the side of flight.
Further, the rotatable parts include servo motor, first gear and second gear, servo motor is connected with the processing unit, servo motor's installation end is fixed connection on the collection section of thick bamboo, servo motor goes up the output shaft and links firmly with the first gear is coaxial, the coaxial rotation of second gear is connected in the top surface of collection section of thick bamboo, the rotation head links firmly on the second gear, first gear and second gear meshing.
Compared with the prior art, the invention can bring the following technical effects:
1. the soil sample processing system has the advantages that the soil sampling depth is automatically controlled, the soil sampling samples are collected, the state information of soil can be detected, the soil sample processing is more convenient, the online detection and the remote monitoring are realized by means of the Internet of things technology, the working efficiency is improved, the detection speed is high, and the precision is high.
2. Collecting state information data such as a ph value, temperature, moisture, conductivity, soil nitrogen-phosphorus-potassium content, multilayer soil temperature-moisture conductivity and the like of soil through the Internet of things, collecting, storing, processing and transmitting the state information data, and integrating management, detection, abnormal alarm and data analysis of the soil information data; and carrying out multi-parameter comprehensive comparison, monitoring and fault early warning on the soil energy efficiency data.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention and to enable other features, objects and advantages of the invention to be more fully apparent. The drawings and their description illustrate the invention by way of example and are not intended to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a frame structure implementation of a soil detection system based on the Internet of things;
FIG. 2 is a schematic diagram of the structure of the acquisition unit;
FIG. 3 is a structural sectional view of the collection unit;
FIG. 4 is an enlarged view taken at A in FIG. 2;
FIG. 5 is an enlarged view at B in FIG. 3;
FIG. 6 is a schematic circuit diagram of the present Internet of things-based soil detection system;
in the figure: 1. collecting a probe; 2. a collection cylinder; 21. a support bracket; 3. a collection mechanism; 31. a collection tank; 32. rotating the head; 33. a rotating member; 331. a servo motor; 332. a first gear; 333. a second gear; 4. a sensing unit; 5. a spiral sheet; 6. a collection port; 7. a collection chamber.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate. In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, a soil detection system based on the internet of things includes a soil detection end, a system service end, and a system client, wherein the soil detection ends are a plurality of soil detection ends and are respectively disposed in each soil environment requiring soil detection,
the soil detection end is used for automatically controlling the soil collection depth and collecting soil collection samples, and can also obtain state information data of the detected soil;
the system server comprises a data acquisition server, a database server and a data interaction server; the data interaction server is used for realizing data exchange among the soil detection end, the system server end and the system client end and analyzing and processing soil state information data;
the system client is used for the user to realize system management and maintenance and inquire the real-time state of the soil.
In this embodiment, the data acquisition server includes a first port and a second port, the first port is connected to the soil detection end, and transmits the acquired soil state information data to the first port, and the received data is converted and stored in the database server; the second port is connected with the system client in a tcp/ip mode and used for receiving a data request sent by the system client and transmitting the specified soil state information data to the client;
the database server is used for providing services such as inquiry, update, transaction management, indexing, cache, inquiry optimization, safety and multi-user access control for client application; on one hand, the data acquisition server provides a structured query language database API interface through graphical programming software to store acquired data into a database, and on the other hand, the data acquisition server processes requests of data query or data manipulation of a client, such as account information, elevator information and sampling data;
the real-time waveform of the main circuit current of the soil detection system is acquired by graphical programming software.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, in this embodiment, the soil detection end includes a sensing unit 4, a processing unit, a collecting unit, and a communication unit;
the collecting unit comprises a collecting probe 1, a collecting barrel 2 and a collecting mechanism 3, and the collecting mechanism 3 automatically controls the depth of the collecting probe 1 penetrating into soil and collects soil collecting samples;
the sensing unit 4 comprises a plurality of soil moisture sensors, soil conductivity sensors, soil ph sensors, soil humidity sensors, soil temperature and humidity sensors and soil nitrogen phosphorus and potassium sensors which are arranged on the acquisition probe 1 and is used for acquiring the ph value, the temperature, the moisture, the conductivity, the soil nitrogen phosphorus and potassium content and the multilayer soil temperature and moisture conductivity of the soil;
the processing unit comprises a sensing signal acquisition circuit and an ARM processor, and the acquisition mechanism 3 is connected with the processing unit and used for controlling the acquisition probe 1 and calculating, processing signals, storing and monitoring data;
the communication unit is used for sending the monitoring data to the system server.
As shown in fig. 1, in this embodiment, the system client includes a soil statistics module, a soil analysis module, and an anomaly alarm module;
the soil statistical module is used for carrying out statistics on the collected soil state information data according to a specified time period and drawing a graph;
the soil analysis module comprises a same-working-condition comparison and analysis unit and a same-period comparison and analysis unit, the same-working-condition comparison and analysis unit is used for comparing and appointing total energy consumption in appointed time of two elevators according to week and generating a graph, and the same-period comparison and analysis unit is used for comparing soil state information data difference values of two adjacent weeks in the appointed time period of the same soil detection end and generating a difference value curve;
and the abnormal alarm module compares the data difference value with the rated tolerance deviation value according to the soil state information data difference value of the same soil detection end in two adjacent weeks within a specified time period, and alarms if the data difference value is larger than a normal value.
As shown in fig. 1 and fig. 6, in this embodiment, the communication unit includes a bluetooth communication module, the bluetooth communication module adopts a CSR integrated bluetooth module 86 series, and a bluetooth signal codec and a bluetooth signal transceiver are integrated inside the bluetooth communication module, the bluetooth signal codec is connected to the signal interaction end of the embedded processor, and the bluetooth signal transceiver is connected to the output end of the bluetooth signal codec.
As shown in fig. 1, in this embodiment, the communication unit further includes a WiFi communication module, the WiFi communication module adopts an ESP8266 integrated WiFi module, and a baseband chip and a microstrip antenna are integrated therein, where the baseband chip is used for performing modulation and demodulation operations on WiFi signals, and the microstrip antenna is used for performing transceiving operations on wireless signals.
As shown in fig. 1, fig. 2, and fig. 3, in this embodiment, the sensing unit 4 is located at the bottom of the collecting probe 1, two ends of the collecting cylinder 2 are connected, the collecting probe 1 is of a cylindrical structure, the collecting probe 1 is in threaded connection with the collecting cylinder 2, the collecting mechanism 3 includes a collecting groove 31, a rotating head 32 and a rotating member 33, the collecting groove 31 is opened on the collecting probe 1 and is of a spiral structure, the longitudinal length of the collecting groove 31 is greater than the maximum distance between the bottom end of the collecting cylinder 2 and the bottom end of the collecting probe 1, one end of the rotating head 32 slides in the collecting groove 31, the rotating head 32 is fixedly connected to the rotating member 33, and the rotating member 33 is located between the rotating head 32 and the collecting cylinder 2 and is used for driving the rotating head 32 to rotate along the circumferential direction of the collecting probe 1.
As shown in fig. 1, 2 and 3, in this embodiment, the bottom of the collection cylinder 2 has three circumferentially arranged support brackets 21, the support brackets 21 are circumferentially and uniformly distributed along the bottom end of the collection cylinder 2, and the longitudinal length of the collection tank 31 is greater than the maximum distance between the bottom end of the support bracket 21 and the bottom end of the collection probe 1.
As shown in fig. 5, in the present embodiment, a spiral plate 5 is disposed at the bottom of the collecting probe 1, a collecting port 6 is disposed at a side surface of the collecting probe 1, a collecting cavity 7 is disposed inside the collecting port 6, and a bottom end of the collecting cavity 7 extends to a side of the spiral plate 5.
As shown in fig. 3, in the process that the collecting probe 1 penetrates into the soil, the spiral sheet 5 is used for breaking the soil, so that the tightness of the soil is improved, and the collecting probe 1 can conveniently penetrate into the soil; when the collection port 6 is opposite to the collection surface, the soil falls into the collection cavity 7 through the collection port 6, so that the soil is convenient to collect, and a soil collection sample is convenient to collect.
As shown in fig. 2 and 3, the rotating member 33 includes a servo motor 331, a first gear 332 and a second gear 333, the servo motor 331 is connected to the processing unit, the mounting end of the servo motor 331 is fixedly connected to the collecting cylinder 2, the output shaft of the servo motor 331 is coaxially and fixedly connected to the first gear 332, the second gear 333 is coaxially and rotatably connected to the top surface of the collecting cylinder 2, the rotating head 32 is fixedly connected to the second gear 333, and the first gear 332 is engaged with the second gear 333.
Through the drive of drive servo motor 331, first gear 332 rotates, drives under the effect of first gear 332 and second gear 333 and rotates head 32 along the circumferential direction of gathering section of thick bamboo 2, drives the axial displacement of gathering probe 1 along gathering section of thick bamboo 2 to the soil collection depth of control gathering probe 1, wherein supply through gathering groove 31 and gather probe 1 and slide, improved device connection stability, guarantee the stable connection of gathering section of thick bamboo 2.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A soil detection system based on the Internet of things comprises a soil detection end, a system service end and a system client end, wherein the soil detection end is provided with a plurality of soil detection ends which are respectively arranged in each soil environment needing soil detection,
the soil detection end is used for automatically controlling the soil collection depth and collecting soil collection samples, and can also obtain state information data of the detected soil;
the system server comprises a data acquisition server, a database server and a data interaction server; the data interaction server is used for realizing data exchange among the soil detection end, the system server end and the system client end and analyzing and processing soil state information data;
the system client is used for the user to realize system management and maintenance and inquire the real-time state of the soil.
2. The soil detection system based on the internet of things of claim 1, wherein the data acquisition server comprises a first port and a second port, the first port is connected with the soil detection end, the acquired soil state information data are transmitted to the first port, and the received data are converted and stored in the database server; the second port is connected with the system client in a tcp/ip mode and used for receiving a data request sent by the system client and transmitting the specified soil state information data to the client;
the database server is used for providing services such as inquiry, update, transaction management, indexing, cache, inquiry optimization, safety and multi-user access control for client application; on one hand, the data acquisition server provides a structured query language database API interface through graphical programming software to store acquired data into a database, and on the other hand, the data acquisition server processes requests of data query or data manipulation of a client, such as account information, elevator information and sampling data;
the real-time waveform of the main circuit current of the soil detection system is acquired by graphical programming software.
3. The soil detection system based on the internet of things of claim 2, wherein the soil detection end comprises a sensing unit (4), a processing unit, a collecting unit and a communication unit;
the collecting unit comprises a collecting probe (1), a collecting cylinder (2) and a collecting mechanism (3), and the collecting probe (1) is automatically controlled to penetrate into the soil to a certain depth through the collecting mechanism (3) and collects a soil collecting sample;
the sensing unit (4) comprises a plurality of soil moisture sensors, soil conductivity sensors, soil ph sensors, soil humidity sensors, soil temperature and humidity sensors and soil nitrogen phosphorus and potassium sensors which are arranged on the acquisition probe (1) and is used for acquiring the ph value, the temperature, the moisture, the conductivity, the soil nitrogen phosphorus and potassium content and the multilayer soil temperature and moisture conductivity of soil;
the processing unit comprises a sensing signal acquisition circuit and an ARM processor, and the acquisition mechanism (3) is connected with the processing unit and used for controlling the acquisition probe (1) and calculating, processing signals, storing and monitoring data;
the communication unit is used for sending the monitoring data to the system server.
4. The soil detection system based on the internet of things of claim 1, wherein the system client comprises a soil statistics module, a soil analysis module and an anomaly alarm module;
the soil statistical module is used for carrying out statistics on the collected soil state information data according to a specified time period and drawing a graph;
the soil analysis module comprises a same-working-condition comparison and analysis unit and a same-period comparison and analysis unit, the same-working-condition comparison and analysis unit is used for comparing and appointing total energy consumption in appointed time of two elevators according to week and generating a graph, and the same-period comparison and analysis unit is used for comparing soil state information data difference values of two adjacent weeks in the appointed time period of the same soil detection end and generating a difference value curve;
and the abnormal alarm module compares the data difference value with the rated tolerance deviation value according to the soil state information data difference value of the same soil detection end in two adjacent weeks within a specified time period, and alarms if the data difference value is larger than a normal value.
5. The soil detection system based on the internet of things of claim 3, wherein the communication unit comprises a Bluetooth communication module, the Bluetooth communication module adopts CSR integrated Bluetooth module 86 series, a Bluetooth signal codec and a Bluetooth signal transceiver are integrated inside the CSR integrated Bluetooth communication module, the Bluetooth signal codec is connected to the signal interaction end of the embedded processor, and the Bluetooth signal transceiver is connected to the output end of the Bluetooth signal codec.
6. The soil detection system based on the internet of things of claim 5, wherein the communication unit further comprises a WiFi communication module, the WiFi communication module adopts an ESP8266 integrated WiFi module, and a baseband chip and a microstrip antenna are integrated inside the WiFi communication module, wherein the baseband chip is used for carrying out modulation and demodulation operations on WiFi signals, and the microstrip antenna is used for carrying out wireless signal transceiving operations.
7. The soil detection system based on the Internet of things as claimed in claim 3, wherein the sensing unit (4) is arranged at the bottom of the collection probe (1), the two ends of the collection cylinder (2) are communicated, the collection probe (1) is of a cylindrical structure, the collection probe (1) is in threaded connection with the collection cylinder (2), the collection mechanism (3) comprises a collection groove (31), a rotating head (32) and a rotating component (33), the collection groove (31) is arranged on the collection probe (1) and is of a spiral structure, the longitudinal length of the collection groove (31) is greater than the maximum distance between the bottom end of the collection cylinder (2) and the bottom end of the collection probe (1), one end of the rotating head (32) is in sliding fit with the collection groove (31), the rotating head (32) is fixedly connected to the rotating component (33), the rotating component (33) is arranged between the rotating head (32) and the collection cylinder (2) and is used for driving the rotating head (32) to follow The circumferential rotation of the acquisition probe (1).
8. The soil detection system based on the Internet of things of claim 7, wherein the bottom of the collection cylinder (2) is provided with three circumferentially arranged support brackets (21), the support brackets (21) are circumferentially and uniformly distributed along the bottom end of the collection cylinder (2), and the longitudinal length of the collection groove (31) is greater than the maximum distance between the bottom end of the support brackets (21) and the bottom end of the collection probe (1).
9. The soil detection system based on the Internet of things of claim 8, wherein a spiral sheet (5) is arranged at the bottom of the acquisition probe (1), a collection port (6) is formed in the side surface of the acquisition probe (1), a collection cavity (7) is formed in the collection port (6), and the bottom end of the collection cavity (7) extends to the side of the spiral sheet (5).
10. The soil detection system based on the internet of things of claim 7, wherein the rotating part (33) comprises a servo motor (331), a first gear (332) and a second gear (333), the servo motor (331) is connected with the processing unit, the mounting end of the servo motor (331) is fixedly connected to the collecting cylinder (2), the output shaft of the servo motor (331) is coaxially and fixedly connected with the first gear (332), the second gear (333) is coaxially and rotatably connected to the top surface of the collecting cylinder (2), the rotating head (32) is fixedly connected to the second gear (333), and the first gear (332) is meshed with the second gear (333).
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