CN110864729A - Soil detection system - Google Patents

Soil detection system Download PDF

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Publication number
CN110864729A
CN110864729A CN201911096062.6A CN201911096062A CN110864729A CN 110864729 A CN110864729 A CN 110864729A CN 201911096062 A CN201911096062 A CN 201911096062A CN 110864729 A CN110864729 A CN 110864729A
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CN
China
Prior art keywords
module
soil
resistor
diode
capacitor
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Pending
Application number
CN201911096062.6A
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Chinese (zh)
Inventor
王紫
罗志芳
张晓晖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Huaqing Environmental Monitoring Co Ltd
Original Assignee
Guangzhou Huaqing Environmental Monitoring Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN201911096062.6A priority Critical patent/CN110864729A/en
Publication of CN110864729A publication Critical patent/CN110864729A/en
Pending legal-status Critical Current

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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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25186—Bluetooth
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25187—Transmission of signals, medium, ultrasonic, radio
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25252—Microprocessor

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Automation & Control Theory (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The invention relates to the field of soil detection, and discloses a soil detection system which comprises a soil pH value detection module, a soil humidity detection module, a soil temperature detection module, a driving circuit, a microprocessor, a GPS positioning module, a wireless communication module, a monitoring display and a power supply module, wherein the soil pH value detection module, the soil humidity detection module and the soil temperature detection module are connected with the driving circuit, the microprocessor is connected with the monitoring display through the wireless communication module, and the wireless communication module is a Bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module or a LoRa module. The soil detection system has the following beneficial effects: the wireless data transmission system has multiple wireless data transmission modes, meets the requirement of a user on the diversification of the data transmission modes, and improves the use experience of the user.

Description

Soil detection system
Technical Field
The invention relates to the field of soil detection, in particular to a soil detection system.
Background
Soil environment testing refers to determining the environmental quality (or the pollution degree) and the variation trend thereof by measuring representative values of factors affecting the soil environment quality. The soil detection generally refers to soil environment detection, and generally comprises technical contents of stationing sampling, sample preparation, analysis methods, result characterization, data statistics, quality evaluation and the like. In the prior art, data transmission modes of some soil detection systems can only adopt a 4G mode for data transmission, and the data transmission modes are single, so that the requirements of users on the diversification of the data transmission modes cannot be met, and the use experience of the users is influenced.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a soil detection system having multiple wireless data transmission modes, meeting the user's demand for diversified data transmission modes, and improving the user experience, aiming at the above-mentioned defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a soil detection system is constructed, comprising a soil pH value detection module, a soil humidity detection module, a soil temperature detection module, a driving circuit, a microprocessor, a GPS positioning module, a wireless communication module, a monitoring display and a power supply module, wherein the soil pH value detection module is connected with the driving circuit and used for detecting the pH value of soil, the soil humidity detection module is connected with the driving circuit and used for detecting the humidity of the soil, the soil temperature detection module is connected with the driving circuit and used for detecting the temperature of the soil, the driving circuit is connected with the microprocessor, the GPS positioning module is connected with the microprocessor and used for acquiring the geographical position of the detected soil, the microprocessor is connected with the monitoring display through the wireless communication module, the power supply module is connected with the microprocessor and used for supplying power to the microprocessor, the wireless communication module is a Bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module or a LoRa module.
In the soil detection system of the present invention, the power supply module includes a power supply, a first capacitor, a second resistor, a first triode, a fourth diode, a first resistor, a first voltage regulator, a second triode, a second capacitor, a third resistor, a transformer, a third capacitor, a fourth resistor, a second diode, a fourth capacitor, a third diode, a fifth capacitor, a fifth resistor, and a voltage output terminal, the power supply is respectively connected to one end of the first capacitor, one end of the second resistor, one end of the second capacitor, one end of the third resistor, and one end of the primary coil of the transformer, the other end of the second resistor is respectively connected to the base of the first triode, the collector of the second triode, and one end of the third capacitor, the collector of the first triode is respectively connected to the other end of the second capacitor, the collector of the second triode, and the voltage output terminal of the transformer, The other end of the third resistor is connected with the other end of the primary coil of the transformer;
an emitting electrode of the first triode is connected with an anode of a fourth diode, a cathode of the fourth diode is respectively connected with one end of the first resistor, an anode of the first voltage-regulator tube and a base electrode of the second triode, the third capacitor is connected with one end of the fourth resistor, the other end of the fourth resistor is respectively connected with a cathode of the second diode and one end of a feedback coil of the transformer, a cathode of the first voltage-regulator tube is respectively connected with one end of the fourth capacitor and the other end of the feedback coil of the transformer, one end of a secondary coil of the transformer is connected with one end of the fifth capacitor, the other end of the secondary coil of the transformer is connected with a cathode of the third diode, and an anode of the third diode is respectively connected with the other end of the fifth capacitor, one end of the fifth resistor and one end of the voltage output end, the other end of the fifth resistor is connected with the other end of the voltage output end.
In the soil detection system of the present invention, the model of the fourth diode is S-272T.
In the soil detection system of the present invention, the power supply module further includes a sixth resistor, one end of the sixth resistor is connected to the collector of the first triode, and the other end of the sixth resistor is connected to the other end of the primary coil of the transformer.
In the soil detection system of the present invention, the resistance of the sixth resistor is 38k Ω.
In the soil detection system of the present invention, the power supply module further includes a fifth diode, an anode of the fifth diode is connected to one end of the third resistor, and a cathode of the fifth diode is connected to one end of the primary coil of the transformer.
In the soil detection system of the present invention, the fifth diode is provided with a model number of E-352.
In the soil detection system of the present invention, the first triode is an NPN type triode.
In the soil detection system of the present invention, the second triode is an NPN type triode.
The soil detection system has the following beneficial effects: the wireless communication module is a Bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module or a LoRa module.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the construction of one embodiment of a soil detection system of the present invention;
fig. 2 is a schematic circuit diagram of the power supply module in the embodiment.
Detailed Description
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.
In the embodiment of the soil detection system of the present invention, a schematic structural diagram of the soil detection system is shown in fig. 1. In fig. 1, this soil detection system includes soil pH detection module 1, soil humidity detection module 2, soil temperature detection module 3, drive circuit 4, microprocessor 5, GPS orientation module 6, wireless communication module 7, monitor display 8 and power module 9, wherein, soil pH detection module 1 is connected with drive circuit 4, a pH for detecting soil, soil humidity detection module 2 is connected with drive circuit 4, a humidity for detecting soil, soil temperature detection module 3 is connected with drive circuit 4, a temperature for detecting soil, drive circuit 4 is connected with microprocessor 5, GPS orientation module 6 is connected with microprocessor 5, a geographical position for obtaining the soil that detects, microprocessor 5 is connected with monitor display 8 through wireless communication module 7. The monitoring display 8 is used for displaying the measured soil parameters and the geographic position of the detection place.
The soil pH value detection module 1, the soil humidity detection module 2, the soil temperature detection module 3, the driving circuit 4, the microprocessor 5, the GPS positioning module 6 and the monitoring display 8 are all realized by adopting structures in the prior art, the working principle of the monitoring display is also the working principle in the prior art, and the monitoring display is not described in a manner similar to mastiff.
In this embodiment, the wireless communication module 7 is a bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module, or a LoRa module. Through setting up multiple wireless communication mode, not only can increase wireless communication mode's flexibility, can also satisfy the demand of different users and different occasions. Especially, when adopting the loRa module, its communication distance is far away, and communication performance is comparatively stable, is applicable to the occasion that requires highly to communication quality. The invention has various wireless data transmission modes, meets the requirement of users on the diversification of the data transmission modes and improves the use experience of the users.
The power supply module 9 is connected with the microprocessor 5 and used for supplying power to the microprocessor 5. Fig. 2 is a schematic circuit diagram of a power supply module in this embodiment, in fig. 2, the power supply module 9 includes a power supply VCC, a first capacitor C1, a second resistor R2, a first transistor Q1, a fourth diode D4, a first resistor R1, a first voltage regulator D1, a second transistor Q2, a second capacitor C2, a third resistor R3, a transformer T, a third capacitor C3, a fourth resistor R4, a second diode D2, a fourth capacitor C4, a third diode D3, a fifth capacitor C5, a fifth resistor R5, and a voltage output Vo, wherein the power supply VCC is respectively connected to one end of the first capacitor C1, one end of the second resistor R2, one end of the second capacitor C2, one end of the third resistor R637, and one end of the primary winding of the transformer T, the other end of the second resistor R2 is respectively connected to a base of the first transistor Q1, one end of the second capacitor Q8672, and one end of the collector 1 of the third capacitor C36 3, and the other end of the collector 1 of the transistor C1, respectively, The other end of the third resistor R3 is connected to the other end of the primary winding of the transformer T.
An emitter of the first triode Q1 is connected with an anode of a fourth diode D4, a cathode of the fourth diode D4 is connected with one end of a first resistor R1, an anode of a first voltage regulator D1 and a base of the second triode Q2 respectively, a third capacitor C3 is connected with one end of a fourth resistor R4, the other end of the fourth resistor R4 is connected with a cathode of a second diode D2 and one end of a feedback coil of the transformer T respectively, a cathode of the first voltage regulator D1 is connected with one end of a fourth capacitor C4 and the other end of the feedback coil of the transformer T respectively, one end of a secondary coil of the transformer T is connected with one end of a fifth capacitor C5, the other end of the secondary coil of the transformer T is connected with a cathode of a third diode D3, an anode of the third diode D3 is connected with the other end of the fifth capacitor C5 respectively, one end of the fifth resistor R5 is connected to one end of the voltage output terminal Vo, and the other end of the fifth resistor R5 is connected to the other end of the voltage output terminal Vo.
In this embodiment, the fourth diode D4 is a current limiting diode, and is used for current limiting protection of the emitter current of the first transistor Q1. The current limiting protection principle is as follows: when the emitter current of the first triode Q1 is large, the fourth diode D4 can reduce the emitter current of the first triode Q1 to keep the first triode Q1 in a normal working state, so that the elements in the circuit are not burnt out due to too large current, and the safety and reliability of the circuit are high. It should be noted that in the present embodiment, the model of the fourth diode D4 is S-272T. Of course, in practical applications, the fourth diode D4 may also be another type of diode with similar functions.
The working principle of the power supply module 9 is as follows: the power VCC supplies a working current to the base of the first triode Q1 through the second resistor R2, after the first triode Q1 works, the collector of the first triode generates a current in the primary coil of the transformer T, so that the feedback coil and the secondary coil of the transformer T generate an induced voltage, wherein the output of the secondary coil of the transformer T is rectified and filtered by the third diode D3 and the fifth capacitor C5, and finally supplies power to the microprocessor 5.
The feedback coil of the transformer T, the third capacitor C3 and the fourth resistor R4 form a positive feedback circuit of a first triode Q1, the first triode Q1 is in high-frequency oscillation and does not stop supplying power to a switch of a primary coil of the transformer T, when load impedance changes to enable output voltage to rise, the feedback coil of the transformer T and the first voltage-regulator tube D1 are sampled and compared to enable the second triode Q2 to be conducted, base current of the second triode Q2 is reduced, collector current is also reduced, therefore, the load capacity of the circuit is reduced, the output voltage of a voltage output end Vo is reduced, and the voltage stabilizing effect is achieved.
In this embodiment, the first transistor Q1 is an NPN transistor, and the second transistor Q2 is an NPN transistor. Of course, in practical applications, the first transistor Q1 and the second transistor Q2 may be PNP transistors, but the circuit structure is changed accordingly.
In this embodiment, the power supply module 9 further includes a sixth resistor R6, one end of the sixth resistor R6 is connected to the collector of the first transistor Q1, and the other end of the sixth resistor R6 is connected to the other end of the primary winding of the transformer T. The sixth resistor R6 is a current limiting resistor, and is used for current limiting protection of the collector current of the first transistor Q1. The current limiting protection principle is as follows: when the collector current of the first triode Q1 is large, the sixth resistor R6 can reduce the collector current of the first triode Q1 to keep the first triode Q1 in a normal operating state, so that the device in the circuit is not burned out due to too large current, and the safety and reliability of the circuit are further enhanced. It should be noted that, in the present embodiment, the resistance of the sixth resistor R6 is 38k Ω. Of course, in practical applications, the resistance of the sixth resistor R6 may be adjusted according to specific situations, that is, the resistance of the sixth resistor R6 may be increased or decreased according to specific situations.
In this embodiment, the power supply module 9 further includes a fifth diode D5, an anode of the fifth diode D5 is connected to one end of the third resistor R3, and a cathode of the fifth diode D5 is connected to one end of the primary winding of the transformer T. The fifth diode D5 is a current limiting diode for current limiting protection. The current limiting protection principle is as follows: when the current of the branch in which the fifth diode D5 is located is large, the current of the branch in which the fifth diode D5 is located can be reduced by the fifth diode D5, so that the branch can be kept in a normal operating state, and the device in the circuit cannot be burned out due to the large current, so that the safety and reliability of the circuit are further enhanced. It should be noted that in the present embodiment, the fifth diode D5 has a model E-352. Of course, in practical applications, the fifth diode D5 may also be another type of diode with similar functions.
In short, in this embodiment, the wireless communication module 7 may be a bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module, or a LoRa module, and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. The utility model provides a soil detection system, its characterized in that, including soil pH value detection module, soil humidity detection module, soil temperature detection module, drive circuit, microprocessor, GPS orientation module, wireless communication module, monitor display and power module, soil pH value detection module with drive circuit connects, is used for detecting the pH value of soil, soil humidity detection module with drive circuit connects, is used for detecting the humidity of soil, soil temperature detection module with drive circuit connects, is used for detecting the temperature of soil, drive circuit with microprocessor connects, GPS orientation module with microprocessor is connected, is used for acquireing the geographical position of the soil that detects, microprocessor passes through wireless communication module with the monitor display is connected, power module with microprocessor connects, The wireless communication module is a Bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module or a LoRa module.
2. The soil detection system of claim 1, wherein the power supply module comprises a power supply, a first capacitor, a second resistor, a first triode, a fourth diode, a first resistor, a first voltage regulator tube, a second triode, a second capacitor, a third resistor, a transformer, a third capacitor, a fourth resistor, a second diode, a fourth capacitor, a third diode, a fifth capacitor, a fifth resistor and a voltage output end, the power supply is respectively connected with one end of the first capacitor, one end of the second resistor, one end of the second capacitor, one end of the third resistor and one end of a primary coil of the transformer, the other end of the second resistor is respectively connected with a base of the first triode, a collector of the second triode and one end of the third capacitor, and a collector of the first triode is respectively connected with the other end of the second capacitor, The other end of the third resistor is connected with the other end of the primary coil of the transformer;
an emitting electrode of the first triode is connected with an anode of a fourth diode, a cathode of the fourth diode is respectively connected with one end of the first resistor, an anode of the first voltage-regulator tube and a base electrode of the second triode, the third capacitor is connected with one end of the fourth resistor, the other end of the fourth resistor is respectively connected with a cathode of the second diode and one end of a feedback coil of the transformer, a cathode of the first voltage-regulator tube is respectively connected with one end of the fourth capacitor and the other end of the feedback coil of the transformer, one end of a secondary coil of the transformer is connected with one end of the fifth capacitor, the other end of the secondary coil of the transformer is connected with a cathode of the third diode, and an anode of the third diode is respectively connected with the other end of the fifth capacitor, one end of the fifth resistor and one end of the voltage output end, the other end of the fifth resistor is connected with the other end of the voltage output end.
3. The soil detection system set forth in claim 2, wherein the fourth diode is of type S-272T.
4. The soil detection system of claim 2, wherein the power supply module further comprises a sixth resistor, one end of the sixth resistor is connected to the collector of the first transistor, and the other end of the sixth resistor is connected to the other end of the primary winding of the transformer.
5. The soil detection system set forth in claim 4 wherein the sixth resistor has a resistance of 38k Ω.
6. The soil detection system set forth in claim 2, wherein the power supply module further comprises a fifth diode, an anode of the fifth diode being connected to one end of the third resistor, and a cathode of the fifth diode being connected to one end of the primary coil of the transformer.
7. The soil detection system set forth in claim 6, wherein the fifth diode is type E-352.
8. The soil detection system of any one of claims 2 to 7, wherein the first transistor is an NPN transistor.
9. The soil detection system of any one of claims 2 to 7, wherein the second transistor is an NPN transistor.
CN201911096062.6A 2019-11-11 2019-11-11 Soil detection system Pending CN110864729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911096062.6A CN110864729A (en) 2019-11-11 2019-11-11 Soil detection system

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Application Number Priority Date Filing Date Title
CN201911096062.6A CN110864729A (en) 2019-11-11 2019-11-11 Soil detection system

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CN110864729A true CN110864729A (en) 2020-03-06

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206945148U (en) * 2017-06-07 2018-01-30 厦门亨立德电子有限公司 Temperature polling instrument with temperature storage
CN108548912A (en) * 2018-04-29 2018-09-18 成都凯威计量技术有限公司 A kind of soil detection system Internet-based
CN109358575A (en) * 2018-10-09 2019-02-19 六安腾达信息科技有限公司 Machine room power environment monitoring system
CN208579793U (en) * 2018-07-31 2019-03-05 广州爱易学智能信息科技有限公司 Internet of Things Intelligent environment monitoring system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206945148U (en) * 2017-06-07 2018-01-30 厦门亨立德电子有限公司 Temperature polling instrument with temperature storage
CN108548912A (en) * 2018-04-29 2018-09-18 成都凯威计量技术有限公司 A kind of soil detection system Internet-based
CN208579793U (en) * 2018-07-31 2019-03-05 广州爱易学智能信息科技有限公司 Internet of Things Intelligent environment monitoring system
CN109358575A (en) * 2018-10-09 2019-02-19 六安腾达信息科技有限公司 Machine room power environment monitoring system

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