CN213239038U - Environmental parameter acquisition circuit suitable for greenhouse - Google Patents
Environmental parameter acquisition circuit suitable for greenhouse Download PDFInfo
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- CN213239038U CN213239038U CN202022512763.8U CN202022512763U CN213239038U CN 213239038 U CN213239038 U CN 213239038U CN 202022512763 U CN202022512763 U CN 202022512763U CN 213239038 U CN213239038 U CN 213239038U
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Abstract
The utility model discloses a to having in the modernization greenhouse to have unsafe problem to monitoring results such as temperature, humidity and carbon dioxide, provide an environmental parameter acquisition circuit suitable for greenhouse, relate to environmental monitoring field technical field. The utility model provides an environmental parameter acquisition circuit suitable for greenhouse, includes front end acquisition sensor, processing circuit and power, still includes communication circuit, voltage stabilizing circuit and communication interface circuit, front end acquisition sensor includes air velocity transducer, light intensity sensor, oxygen concentration sensor and carbon dioxide, temperature and humidity sensor, processing circuit respectively with light intensity sensor oxygen concentration sensor with carbon dioxide, temperature and humidity sensor communication connection, processing circuit passes through communication interface circuit with air velocity transducer communication connection. The utility model discloses but real-time acquisition greenhouse monitoring data, the administrator of being convenient for in time makes the adjustment to the greenhouse environment to satisfy the vegetation demand.
Description
Technical Field
The utility model relates to an environmental monitoring field technical field, specificly relate to an environmental parameter acquisition circuit suitable for greenhouse.
Background
Greenhouse refers to a building that can control or partially control the growing environment of plants, and greenhouse planting is also used in agricultural production on a large scale. The management of the traditional greenhouse is mainly carried out in a manual mode, and management personnel manually monitor the environment in the greenhouse and track data. In order to improve economic benefits, various high-value and high-difficulty plants are gradually planted in greenhouses, and the plants usually have extremely strict requirements on various environmental parameters, such as light conditions, temperature, humidity, carbon dioxide concentration and the like, which are required to be strictly executed according to regulations. The conventional regular monitoring mode of managers cannot well meet the requirements of modern greenhouses, and the monitoring result is possibly inaccurate due to subjectivity and individuality difference of the managers, so that the healthy growth of plants is influenced, and the planting failure is caused.
At present, although various environmental monitoring systems are available, for example, patent CN207066495U discloses an environmental parameter acquisition circuit and system, which includes a front-end acquisition sensor (front-end acquisition circuit), a processing circuit, a display circuit and a power circuit, where the front-end acquisition circuit mainly includes a wind speed sensor and a temperature sensor. The system mainly collects the field wind speed and temperature through a wind speed sensor and a temperature sensor, then transmits the wind speed and temperature to a processor, and finally transmits the wind speed and temperature to a display circuit through the processor for displaying. The system primarily collects field wind speed and temperature to facilitate analysis of weld quality defects due to the environmental factors described above. The system does not meet the requirements of greenhouse environment parameter acquisition.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: aiming at the problem that monitoring results of temperature, humidity, carbon dioxide and the like in a modern greenhouse are inaccurate, the environment parameter acquisition circuit suitable for the greenhouse is provided.
The utility model provides a technical scheme that its technical problem adopted is: an environmental parameter acquisition circuit suitable for a greenhouse comprises a front-end acquisition sensor, a processing circuit, a power supply, a communication circuit, a voltage stabilizing circuit and a communication interface circuit, wherein the front-end acquisition sensor comprises a wind speed sensor, an illumination sensor, an oxygen concentration sensor, a carbon dioxide sensor and a temperature and humidity sensor;
the power supply output end is respectively and electrically connected with the wind speed sensor, the illumination sensor, the oxygen concentration sensor, the carbon dioxide, temperature and humidity sensor, the processing circuit and the communication interface circuit power supply input end after passing through the voltage stabilizing circuit;
the processing circuit is in communication connection with the illumination sensor, the oxygen concentration sensor, the carbon dioxide sensor and the temperature and humidity sensor respectively, and the processing circuit is in communication connection with the wind speed sensor through the communication interface circuit so as to achieve data acquisition.
Further, the voltage stabilizing circuit comprises a first linear voltage stabilizing circuit and a second linear voltage stabilizing circuit, the first linear voltage stabilizing circuit comprises a voltage stabilizing chip U1, a grounded capacitor C7, a grounded capacitor C1, a grounded capacitor C2 and a grounded capacitor C3, the input end of the voltage stabilizing chip U1 is electrically connected with the power supply output end, the output end of the voltage stabilizing chip U1 is electrically connected with the power supply input ends of the processing circuit, the oxygen concentration sensor and the second linear voltage stabilizing circuit respectively, the ground end of the voltage stabilizing chip U1 is connected with the ground, the grounded capacitor C7 and the grounded capacitor C1 are connected in parallel between the input end of the voltage stabilizing chip U1 and the ground end, and the grounded capacitor C2 and the grounded capacitor C3 are connected in parallel between the output end of the voltage stabilizing chip U1 and the ground end;
the second linear voltage stabilizing circuit comprises a voltage stabilizing chip VR1, a ground capacitor C4, a ground capacitor C5 and a ground capacitor C6, wherein the input end of the voltage stabilizing chip VR1 is electrically connected with the output end of a voltage stabilizing chip U1, the output end of the voltage stabilizing chip VR1 is electrically connected with the power input ends of the communication interface circuit, the communication circuit, the illumination sensor, the carbon dioxide and the temperature and humidity sensor respectively, the ground end of the voltage stabilizing chip VR1 is connected with the ground, the ground capacitor C4 is arranged between the input end of the voltage stabilizing chip VR1 and the ground end, and the ground capacitor C5 and the ground capacitor C6 are connected between the output end of the voltage stabilizing chip VR1 and the ground end in parallel.
Further, the model of the voltage stabilizing chip U1 is AMS1084, and the model of the voltage stabilizing chip VR1 is AMS 1117.
Further, the processing circuit comprises a processor, wherein the model of the processor is STM32F411CCU6, and three GPIOs are adopted to be connected with the illumination sensor, so that data interaction is carried out according to an I2C communication protocol; the processor is connected with the carbon dioxide concentration sensor by adopting five GPIOs, wherein two GPIOs are I2C communication protocol lines, the I2C communication protocol lines are shared with the temperature and humidity sensor, and two outer three pins are used for setting configuration parameters of the carbon dioxide concentration sensor; the processor adopts three GPIO pins and a UART protocol line to be connected with the WIFI communication circuit; the processor adopts an ADC pin to be connected with the oxygen concentration sensor module, and reads the voltage parameter value of the sensor.
Further, the communication interface circuit adopts an RS485 communication interface, and the communication interface circuit includes a communication chip U2, a ground resistor R1, a ground resistor R2 and a ground resistor R3, an RO end of the communication chip U2 is connected with a PA10 end of the processing circuit, a DI end thereof is connected with a PA9 end of the processing circuit, a DE end thereof is connected with a RE end of the communication chip U2 and a PA8 end of the processing circuit, a VCC end thereof is connected with one end of R3 to serve as a power input end of the communication interface circuit, a B end thereof is connected with one ends of the ground resistor R1 and the ground resistor R2, respectively, thereby serving as a B end of the communication interface circuit, and an a end thereof is connected with the other end of the ground resistor R3 and the other end of the ground resistor R2, respectively, thereby serving as an a end of the communication interface circuit.
Further, the model number of the communication chip U2 is SP3485 EN-L/TR.
Furthermore, the model of the wind speed sensor is SM5386, and the wind speed sensor is in communication connection with the A end and the B end of the communication interface circuit through an RS485 protocol.
Further, the communication circuit comprises a WIFI communication module, the WIFI communication module is ESP8266 in model and communicates with the processing circuit through a UART serial port, the WIFI communication module uses 4C 8, C13, C10, C11 of 10 UFs and a C9 capacitor of 1UF as filter capacitors, the C8, C13, C10, C11 and C9 are connected in parallel between a power input end and a ground end of the WIFI communication module, and the WIFI communication module is further connected with a serial port monitoring port P4.
Further, the model of the illumination sensor is BH 1750.
Further, the model of the oxygen concentration sensor module is ZE 03-O.
The utility model has the advantages that: the utility model discloses an air velocity transducer, light intensity sensor, carbon dioxide, temperature and humidity sensor and the accurate wind speed data of gathering of oxygen concentration sensor, illumination intensity data, carbon dioxide concentration data, temperature and humidity data and oxygen concentration data, transmit to processing circuit and handle, and establish the LAN through communication circuit, data real-time output after handling circuit handles is uploaded to the server end, thereby realize the environmental data in each greenhouse of real-time accurate prison, but this circuit real-time collection greenhouse monitoring data, the administrator of being convenient for in time makes the adjustment to the greenhouse environment, in order to satisfy the vegetation demand.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a diagram of a first linear voltage regulator circuit of the present invention;
FIG. 3 is a diagram of a second linear voltage regulator circuit of the present invention;
fig. 4 is a processing circuit diagram of the present invention;
fig. 5 is a circuit diagram of a communication interface of the present invention;
fig. 6 is a communication circuit diagram of the present invention;
fig. 7 is a circuit diagram of the serial port P4 according to the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the utility model discloses an environmental parameter acquisition circuit suitable for greenhouse, including front end acquisition sensor, processing circuit and power, still include communication circuit, voltage stabilizing circuit and communication interface circuit, front end acquisition sensor includes air velocity transducer, light intensity sensor, oxygen concentration sensor and carbon dioxide, temperature and humidity sensor; the power output end is respectively and electrically connected with the wind speed sensor, the illumination sensor, the oxygen concentration sensor, the carbon dioxide, temperature and humidity sensor, the processing circuit and the power input end of the communication interface circuit after passing through the voltage stabilizing circuit, so that the circuits supply power. The processing circuit is in communication connection with the illumination sensor, the oxygen concentration sensor, the carbon dioxide sensor and the temperature and humidity sensor respectively, and the processing circuit is in communication connection with the wind speed sensor through the communication interface circuit so as to realize collection of illumination, oxygen concentration, carbon dioxide concentration and temperature and humidity data in the greenhouse.
The voltage stabilizing circuit mainly ensures the normal work of a subsequent circuit, namely, prevents the abnormal work or the fault of a sensor and a processing circuit caused by the fluctuation of the power supply voltage, so as to cause inaccurate collected data; carbon dioxide, temperature and humidity sensor point out by the module of carbon dioxide concentration sensor and temperature and humidity sensor combination, and preferably, the carbon dioxide concentration sensor model selects for use CCS811, and the temperature and humidity sensor model selects for use HDC 1080. The carbon dioxide concentration sensor CCS811 integrates a Metal Oxide (MOX) gas sensor, a microcontroller, an analog-to-digital converter (ADC) and an I2C digital interface, can detect carbon dioxide, ethanol and dangerous gas, and can preprocess data by the internally integrated microcontroller, so that the workload of a main system is reduced, and the design of a circuit board is simplified; the temperature and humidity sensor HDC1080 is a digital humidity sensor with an integrated temperature sensor, which can provide excellent measurement accuracy with ultra-low power consumption.
In practice, because the wind speed sensor is large and cannot be integrated with the illumination sensor, the oxygen concentration sensor, the carbon dioxide sensor, the temperature and humidity sensor and the processing circuit, the wind speed sensor and the processing circuit realize remote data transmission through the communication interface circuit. The utility model discloses an air velocity transducer, light intensity sensor, carbon dioxide, temperature and humidity sensor and the accurate wind speed data of gathering of oxygen concentration sensor, illumination intensity data, carbon dioxide concentration data, temperature and humidity data and oxygen concentration data, transmit to processing circuit and handle, and construct the LAN through communication circuit, data real-time output after processing circuit handles is uploaded to the server end (also can be personal computer terminal), thereby realize the environmental data in each greenhouse of real-time accurate prison, be convenient for in time make the adjustment to the greenhouse environment according to the detected data, in order to satisfy the vegetation demand.
In order to meet the voltage stabilizing requirements of circuits with different power supply voltages, as shown in fig. 2 and 3, the voltage stabilizing circuit comprises a first linear voltage stabilizing circuit and a second linear voltage stabilizing circuit, the first linear voltage stabilizing circuit comprises a voltage stabilizing chip U1, a ground capacitor C7, a ground capacitor C1, a ground capacitor C2 and a ground capacitor C3, the input end of the voltage stabilizing chip U1 is electrically connected with the power supply output end, the output end of the voltage stabilizing chip U1 is electrically connected with the 5V power supply input end of the processing circuit, the oxygen concentration sensor and the second linear voltage stabilizing circuit respectively, the ground end of the voltage stabilizing chip U1 is connected with the ground, the ground capacitor C7 and the ground capacitor C1 are connected in parallel between the input end and the ground end of the voltage stabilizing chip U1, and the ground capacitor C2 and the ground capacitor C63; the second linear voltage stabilizing circuit comprises a voltage stabilizing chip VR1, a ground capacitor C4, a ground capacitor C5 and a ground capacitor C6, a 5V input end of the voltage stabilizing chip VR1 is electrically connected with an output end of the voltage stabilizing chip U1, an output end of the voltage stabilizing chip VR1 is respectively electrically connected with a communication interface circuit, a communication circuit, an illumination sensor, carbon dioxide and a 3V power supply input end of a temperature and humidity sensor, a ground end of a voltage stabilizing chip VR1 is connected with the ground, the ground capacitor C4 is arranged between the input end of the voltage stabilizing chip VR1 and the ground end, and the ground capacitor C5 and the ground capacitor C6 are connected between the output end of the voltage stabilizing chip VR 1. Specifically, in the embodiment of the present invention, the power output voltage is 12V, the working voltages of the processing circuit and the oxygen concentration sensor are 5V, the working voltages of the other circuits are 3V, the ground capacitor C7, the ground capacitor C1, the ground capacitor C2, the ground capacitor C4 and the ground capacitor C5 are both 10UF, and the ground capacitor C3 and the ground capacitor C6 are 1 UF; the model of the voltage stabilizing chip U1 is AMS1084, and the model of the voltage stabilizing chip VR1 is AMS 1117.
As shown in fig. 4, the processing circuit of the present invention includes a processor, the processor is STM32F411CCU6, and three GPIOs are used to connect with the illumination sensor, so as to perform data interaction with I2C communication protocol; the processor is connected with the carbon dioxide concentration sensor by adopting five GPIOs, wherein two GPIOs are I2C communication protocol lines, the I2C communication protocol lines are shared with the temperature and humidity sensor, and two outer three pins are used for setting configuration parameters of the carbon dioxide concentration sensor; the processor adopts three GPIO pins and a UART protocol line to be connected with the WIFI communication circuit; the processor uses an ADC pin to interface with the oxygen concentration sensor, which reads the voltage parameter value of the sensor. Specifically, the model of the illumination sensor is BH1750, and the model of the oxygen concentration sensor module is ZE 03-O. Oxygen concentration sensor ZE03-O2 has adopted high performance, general electrochemistry series module, adopts three electrode electrochemistry gas sensor and high performance microprocessor, carries on different gas sensor just can measure corresponding gas, and built-in temperature sensor carries out temperature compensation, the gas concentration in the measuring environment that can be accurate.
As shown in fig. 5, the utility model discloses well communication interface circuit adopts RS485 communication interface, communication interface circuit includes communication chip U2, ground resistance R1, ground resistance R2 and ground resistance R3, communication chip U2's RO end is connected with the PA10 end of treater, its DI end is connected with the PA9 end of treater, its DE end is connected with the RE end of this communication chip U2 and the PA8 end of central processing unit respectively, its VCC end is connected with the one end of R3, in order to be as communication interface circuit's power input end, its B end is connected with ground resistance R1 and ground resistance R2's one end respectively, thereby be as communication interface circuit's B end, its A end is connected with the other end of ground resistance R3 and the other end of ground resistance R2 respectively, thereby be as communication interface circuit's A end. Specifically, the grounding resistor R1 and the grounding resistor R32 are 360 ohms, and the grounding resistor R2 is 120 ohms; the model of the communication chip U2 is SP3485 EN-L/TR; the model number of the wind speed sensor is SM5386, and the wind speed sensor is in communication connection with the A end and the B end of the communication interface circuit through an RS485 protocol. In the figure, the position of the upper end of the main shaft,
as shown in fig. 6, the utility model discloses well communication circuit includes WIFI communication module, and the WIFI communication module model is ESP8266 to communicate with the treater through the UART serial port, WIFI communication module has used 4C 8 of 10UF, C13, C10, C11 and the C9 electric capacity of 1UF as filter capacitance, C8, C13, C10, C11 and C9 connect in parallel between WIFI communication module's power input and earthing terminal, WIFI communication module has still connected a serial ports monitoring port P4 (see fig. 7).
Claims (10)
1. The utility model provides an environmental parameter acquisition circuit suitable for greenhouse, includes front end acquisition sensor, processing circuit and power, its characterized in that: the front-end acquisition sensor comprises a wind speed sensor, an illumination sensor, an oxygen concentration sensor, a carbon dioxide sensor and a temperature and humidity sensor;
the output end of the power supply is electrically connected with the wind speed sensor, the illumination sensor, the oxygen concentration sensor and the power supply input ends of the carbon dioxide, temperature and humidity sensor, the processing circuit and the communication interface circuit respectively after passing through the voltage stabilizing circuit;
the processing circuit is in communication connection with the illumination sensor, the oxygen concentration sensor, the carbon dioxide sensor and the temperature and humidity sensor respectively, and the processing circuit is in communication connection with the wind speed sensor through the communication interface circuit so as to achieve data acquisition.
2. An environmental parameter acquisition circuit suitable for use in a greenhouse as claimed in claim 1, wherein: the voltage stabilizing circuit comprises a first linear voltage stabilizing circuit and a second linear voltage stabilizing circuit, the first linear voltage stabilizing circuit comprises a voltage stabilizing chip U1, a grounding capacitor C7, a grounding capacitor C1, a grounding capacitor C2 and a grounding capacitor C3, the input end of the voltage stabilizing chip U1 is electrically connected with the output end of the power supply, the output end of the voltage stabilizing chip U1 is electrically connected with the processing circuit, the oxygen concentration sensor and the power supply input end of the second linear voltage stabilizing circuit respectively, the grounding end of the voltage stabilizing chip U1 is connected with the ground, the grounding capacitor C7 and the grounding capacitor C1 are connected between the input end and the grounding end of the voltage stabilizing chip U1 in parallel, and the grounding capacitor C2 and the grounding capacitor C3 are connected between the output end and the grounding end of the voltage stabilizing chip U1 in parallel;
the second linear voltage stabilizing circuit comprises a voltage stabilizing chip VR1, a ground capacitor C4, a ground capacitor C5 and a ground capacitor C6, wherein the input end of the voltage stabilizing chip VR1 is electrically connected with the output end of the voltage stabilizing chip U1, the output end of the voltage stabilizing chip VR1 is respectively electrically connected with the power input ends of the communication interface circuit, the communication circuit, the illumination sensor, the carbon dioxide and the temperature and humidity sensor, the ground end of the voltage stabilizing chip VR1 is connected with the ground, the ground capacitor C4 is arranged between the input end and the ground end of the voltage stabilizing chip VR1, and the ground capacitor C5 and the ground capacitor C6 are connected in parallel between the output end and the ground end of the voltage stabilizing chip VR 1.
3. An environmental parameter acquisition circuit suitable for use in a greenhouse as claimed in claim 2, wherein: the model of the voltage stabilizing chip U1 is AMS1084, and the model of the voltage stabilizing chip VR1 is AMS 1117.
4. An environmental parameter acquisition circuit suitable for use in a greenhouse as claimed in claim 1, wherein: the processing circuit comprises a processor, wherein the model of the processor is STM32F411CCU6, and three GPIOs are adopted to be connected with the illumination sensor, so that data interaction is carried out by an I2C communication protocol; the processor is connected with the carbon dioxide concentration sensor by adopting five GPIOs, wherein two GPIOs are I2C communication protocol lines, the I2C communication protocol lines are shared with the temperature and humidity sensor, and two outer three pins are used for setting configuration parameters of the carbon dioxide concentration sensor; the processor adopts three GPIO pins and a UART protocol line to be connected with the WIFI communication circuit; the processor adopts an ADC pin to be connected with the oxygen concentration sensor module, and reads the voltage parameter value of the sensor.
5. An environmental parameter acquisition circuit suitable for use in a greenhouse as claimed in claim 4, wherein: the communication interface circuit adopts an RS485 communication interface and comprises a communication chip U2, a grounding resistor R1, a grounding resistor R2 and a grounding resistor R3, wherein the RO end of the communication chip U2 is connected with the PA10 end of the processing circuit, the DI end of the communication chip U2 is connected with the PA9 end of the processing circuit, and the DE end of the communication chip U2 is respectively connected with the communication chip U9 end
The terminal is connected with the PA8 terminal of the processing circuit, the VCC terminal thereof is connected with one terminal of R3 to be used as the power input terminal of the communication interface circuit
Terminals are connected to one terminals of a ground resistor R1 and a ground resistor R2, respectively, thereby serving as B terminals of a communication interface circuit, which
The terminals are connected to the other terminal of the ground resistor R3 and the other terminal of the ground resistor R2, respectively, thereby serving as a terminal a of the communication interface circuit.
6. An environmental parameter acquisition circuit suitable for use in a greenhouse as claimed in claim 5, wherein: the model of the communication chip U2 is SP3485 EN-L/TR.
7. An environmental parameter acquisition circuit suitable for use in a greenhouse as claimed in claim 5, wherein: the model of the wind speed sensor is SM5386, and the wind speed sensor is in communication connection with the A end and the B end of the communication interface circuit through an RS485 protocol.
8. An environmental parameter acquisition circuit suitable for use in a greenhouse as claimed in claim 1, wherein: the communication circuit comprises a WIFI communication module, the type of the WIFI communication module is ESP8266, the WIFI communication module is communicated with the processing circuit through a UART serial port, the WIFI communication module uses 4C 8, C13, C10 and C11 of 10 UFs and a C9 capacitor of 1UF as filter capacitors, the C8, C13, C10, C11 and C9 are connected between a power supply input end and a grounding end of the WIFI communication module in parallel, and the WIFI communication module is further connected with a serial port monitoring port P4.
9. An environmental parameter acquisition circuit suitable for use in a greenhouse as claimed in claim 1, wherein: the type of the illumination sensor is BH 1750.
10. An environmental parameter acquisition circuit suitable for use in a greenhouse as claimed in claim 1, wherein: the model of the oxygen concentration sensor module is ZE 03-O.
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| CN202022512763.8U CN213239038U (en) | 2020-11-03 | 2020-11-03 | Environmental parameter acquisition circuit suitable for greenhouse |
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| CN202022512763.8U CN213239038U (en) | 2020-11-03 | 2020-11-03 | Environmental parameter acquisition circuit suitable for greenhouse |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594707A (en) * | 2022-02-28 | 2022-06-07 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Environment sensing circuit |
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2020
- 2020-11-03 CN CN202022512763.8U patent/CN213239038U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594707A (en) * | 2022-02-28 | 2022-06-07 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Environment sensing circuit |
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