Intelligent hail suppression control system for orchard

Abstract

The invention discloses an orchard intelligent hail suppression control system, which is characterized in that a control system module and a series of sensor modules are combined to realize the functional requirement of intelligent hail suppression. The control system module comprises but is not limited to an MCU with a 32-bit microprocessor STM32F103ZET6 of the Italian semiconductor company as a control core, a power circuit design and a stepping motor circuit design. The sensor module comprises, but is not limited to, a wind speed and direction sensor, an air temperature and humidity sensor, a soil temperature and humidity sensor, a carbon dioxide sensor, an illumination sensor, a raindrop sensor, an atmospheric pressure sensor, a 4G communication module and other natural environment factor detection sensors and an Internet of Things communication module. The control system module is mainly used for completing the functions of receiving and processing information of a plurality of sensors, controlling a stepping motor and the like, and the sensor module is mainly used for monitoring natural conditions seriously influencing growth of fruit trees, feeding monitoring information back to an MCU (Microprogrammed Control Unit) and the like. Through combination of the control system and the sensor module, automatic weather monitoring, motor driving, intelligent hail prevention and other functions can be realized, the economic and ecological benefits of the apple orchard are improved, the labor force of the apple orchard is liberated, and the production efficiency of the apple orchard is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent control, and in particular relates to an intelligent hail prevention control system for an orchard. Background Art

[0002] Hail is most likely to fall in my country from April to June every year. In recent years, the incidence of hail disasters has been increasing year by year. Hail is a serious meteorological disaster caused by a strong convective system. It occurs in a short time, a small range, and has great intensity. It is often accompanied by paroxysmal heavy precipitation such as strong winds, heavy precipitation, and low temperatures. Every year, hail causes great losses to my country's agriculture, forestry, communications, construction and other industries and people's lives and property. The best way to prevent hail is to set up anti-hail nets on the fruit tree trellises, which act as "isolation walls" to keep the "isolation walls" out and prevent hail. In addition, adding sunshade nets in the orchard can effectively alleviate the decline in yield caused by the decline in fruit photosynthesis due to too strong light. The current anti-hail net frames are all built by hand. This method not only consumes a lot of manpower, but also has a slow response speed to sudden natural disasters such as hail, rain and snow, and cannot respond quickly and effectively.

[0003] Globally, artificial hail prevention technology has developed rapidly. With the intensification of hail disasters, hail prevention work has received more and more attention and support. Since the mid-20th century, foreign countries have conducted research on severe convective weather. In the early and mid-1970s, American scientists conducted a "National Hail Study" in high-probability areas, obtained a relatively complete set of hailstorm data, and used it for research related to hailstorms, two-dimensional hailstorms, etc., thereby simplifying the numerical simulation of hailstorms and adding basic dynamics and fine physical processes. Rinehart and Garvev applied the three-dimensional data obtained from radar reflectivity to pattern recognition for correlation analysis and processed the entire echo image. Johnson, Pamela and others proposed an analysis method using the echo threshold of severe convective weather as a discrimination index and proved the effectiveness of this method. Summary of the invention

[0004] Purpose of the invention: The purpose of the invention is to solve the deficiencies of the existing technology and provide an orchard intelligent hail prevention control system to replace manual labor to achieve the automatic laying and recovery of hail prevention nets and sun protection nets, the opening and closing of automatic drip irrigation devices and timed pesticide spraying devices, thereby improving agricultural modernization and saving manpower.

[0005] Technical solution: The orchard intelligent hail prevention control system described in the present invention is characterized in that sensors are used to monitor the natural environment, MCU processes sensor information, and control modules drive motors, thereby realizing intelligent and automated hail prevention.

[0006] The orchard hail prevention net system comprises a control module and a sensor module.

[0007] The control module is composed of an MCU with a 32-bit microprocessor STM32F103ZET6 from STMicroelectronics as the control core, a power supply circuit design, and a stepper motor circuit.

[0008] The sensor module consists of a wind speed and direction sensor, an air temperature and humidity sensor, a soil temperature and humidity sensor, a carbon dioxide sensor, a light sensor, a raindrop sensor, an atmospheric pressure sensor, and a 4G communication module.

[0009] Furthermore, the plurality of modules are controlled by connecting lines and PCB microstrip lines to achieve multi-module interaction.

[0010] Furthermore, the circuits of the MCU and LCD display screen require 3.3V and 5V supplies, and the LM2596 and AMS1117 series linear voltage regulator modules can be used to convert the 24V power supply.

[0011] Furthermore, the stepper motor driving circuit adopts a ULN2003 driving chip.

[0012] Furthermore, the ULN2003 driver chip is a monolithic high voltage (up to 50V), high current (single rated output 500mA) Darlington transistor array integrated circuit. It is composed of 7 pairs of NPN Darlington transistors, and its high voltage output characteristics and cathode clamping diode can convert inductive loads.

[0013] The wind speed and direction sensor adopts the chip of Max485 to complete the conversion from TTL level to differential level. Max485 adopts RS485 communication protocol and has a DE (transmit enable) pin to control the data transmission direction of RS485 line.

[0014] The air temperature and humidity sensor described is based on SHT30. Its working principle is based on the capacitance measurement principle, using temperature sensor and humidity sensor to measure the temperature and humidity in the environment. The microprocessor of SHT30 can convert these digital signals into standard digital signals for data processing and analysis. SHT30 has the characteristics of high precision, low power consumption and fast response time, making it a very useful digital temperature and humidity sensor.

[0015] The soil temperature and humidity sensor adopts the capacitive soil temperature and humidity sensor of risym company, and uses the temperature sensor and humidity sensor to measure the temperature and humidity in the environment. The collection device adopts the capacitive sensing principle to detect soil moisture. It avoids the problem that the resistive sensor is easily corroded, and greatly prolongs its working life. The analog AO voltage output is obtained through ADC conversion, and then the state of soil moisture is obtained. The sensor has a built-in voltage stabilizing chip and supports a 3.3~5.5V voltage working environment.

[0016] The carbon dioxide sensor uses a metal oxide indoor gas sensor SGP30 that integrates multiple sensor elements. It integrates 4 gas sensor elements and has a fully calibrated air quality output signal, which is mainly used to detect air quality. It can output: TVOC (Total Volatile Organic Compounds), with a range of 0~60000ppb; CO2 concentration, with a range of 400~60000ppm.

[0017] The light sensor uses a digital light intensity sensor integrated circuit BH1750 for a two-wire serial bus interface. It can adjust the brightness of the LCD or keyboard backlight according to the collected light intensity data. Its high resolution can detect a wide range of light intensity changes. The interior of BH1750 is composed of a photosensitive diode, an operational amplifier, an ADC acquisition, a crystal oscillator, etc. It corresponds to a wide range of input light (equivalent to 1-65535lx), the minimum error change is within 20%, and it is little affected by infrared rays.

[0018] The raindrop sensor uses an analog (digital) input module, also called a rain sensor. It can be used to monitor various weather conditions, detect whether it is raining and the amount of rain, and convert it into a digital signal (DO) and an analog signal (AO) output. It is widely used in Arduino robot kits, raindrops, rain sensors, can be used to monitor various weather conditions, and convert them into digital signals and AO outputs.

[0019] The atmospheric pressure sensor described above adopts a digital atmospheric pressure sensor module, BMP180. BMP180 adopts micro-electromechanical system (MEMS) technology and can provide high-precision atmospheric pressure and temperature measurement results. It communicates with the main control device through the I2C interface and outputs digital measurement results, which is convenient for integration and processing.

[0020] The 4G communication module adopts the LTE Cat.1 bis communication module Air780E launched by Hezhou Communication. Air780E is a 4G full network access module that can adapt to different operators and products to ensure maximum flexibility in product design. It supports SPI LCD; supports SPI Camera; supports USB 2.0; supports PSM digital voice interface; supports multiple development methods, such as USB Internet access, standard AT, LuatOS, CSDK secondary development, etc., and supports LTE 3GPP Rel.13 technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall structural design diagram of the present invention.

[0022] Figure 2 It is the smallest STM board of the present invention.

[0023] Figure 3 It is the minimum system circuit diagram of STM32F103ZET6 of the present invention.

[0024] Figure 4 This is a 220V to 24V circuit diagram of the present invention.

[0025] Figure 5 This is a 24V to 5V circuit diagram of the present invention.

[0026] Figure 6 This is the 5V to 3.3V circuit diagram of the present invention.

[0027] Figure 7 It is the principle diagram of the ULN2003 driver module of the present invention.

[0028] Figure 8 It is a principle diagram of the wind speed and direction sensor of the present invention.

[0029] Fig. 9 It is a principle diagram of the wind speed and direction sensor of the present invention.

[0030] Fig.10 It is the principle diagram of the air temperature and humidity sensor of the present invention.

[0031] Fig.11 It is a communication circuit diagram of the air temperature and humidity sensor module of the present invention.

[0032] Fig.12 It is the principle diagram of the soil temperature and humidity sensor of the present invention.

[0033] Fig.13 It is a communication circuit diagram of the soil moisture sensor module of the present invention.

[0034] Fig.14 It is a circuit schematic diagram of the carbon dioxide sensor of the present invention.

[0035] Fig.15 It is a communication circuit diagram of the carbon dioxide sensor module of the present invention.

[0036] Fig.16 It is a schematic diagram of a light sensor circuit of the present invention.

[0037] Fig.17 It is a communication circuit diagram of the light sensor module of the present invention.

[0038] Fig.18 It is a schematic diagram of a raindrop sensor circuit of the present invention.

[0039] Fig.19 The invention relates to a raindrop sensor module communication circuit.

[0040] Fig. 20 Schematic diagram of the atmospheric pressure sensor circuit of the present invention.

[0041] Fig.21 The atmospheric pressure sensor module communication circuit of the present invention.

[0042] Fig. 22 Circuit diagram of Air780E of the present invention.

[0043] Fig.23 The STMZET6 circuit schematic diagram of the present invention.

[0044] Fig.24 Schematic diagram of the circuits of the components of the present invention.

[0045] Fig.25 PCB packaging diagram of the present invention. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described in detail below with reference to specific examples.

[0047] The orchard intelligent hail prevention control system described in the present invention is characterized in that sensors are used to monitor the natural environment, an MCU is used to process sensor information, and a control module is used to drive a motor, thereby realizing intelligent and automatic hail prevention.

[0048] like Figure 1 As shown, the orchard hail prevention control system of the present invention includes: a 32-bit microprocessor of STMicroelectronics (ST), model STM32F103ZET6, a power supply circuit design, a stepper motor circuit, a wind speed and direction sensor, an air temperature and humidity sensor, a soil temperature and humidity sensor, a carbon dioxide sensor, a light sensor, a raindrop sensor, an atmospheric pressure sensor, a 4G communication module, etc.

[0049] Multiple modules interact with each other through control connection lines and PCB microstrip lines.

[0050] The circuits of the MCU and LCD display screen require 3.3V and 5V supplies. The LM2596 and AMS1117 series linear voltage regulator modules can be used to convert the 24V power supply.

[0051] The stepper motor drive circuit adopts the ULN2003 drive chip.

[0052] The ULN2003 driver chip is a monolithic high voltage (up to 50V), high current (single rated output 500mA) Darlington transistor array integrated circuit. It is composed of 7 pairs of NPN Darlington transistors, and its high voltage output characteristics and cathode clamping diode can convert inductive loads.

[0053] The wind speed and direction sensor adopts the chip of Max485 to complete the conversion from TTL level to differential level. Max485 adopts RS485 communication protocol and has a DE (transmit enable) pin to control the data transmission direction of RS485 line.

[0054] The air temperature and humidity sensor described is based on SHT30. Its working principle is based on the capacitance measurement principle, using temperature sensor and humidity sensor to measure the temperature and humidity in the environment. The microprocessor of SHT30 can convert these digital signals into standard digital signals for data processing and analysis. SHT30 has the characteristics of high precision, low power consumption and fast response time, making it a very useful digital temperature and humidity sensor.

[0055] The soil temperature and humidity sensor adopts the capacitive soil temperature and humidity sensor of risym company, and uses the temperature sensor and humidity sensor to measure the temperature and humidity in the environment. The collection device adopts the capacitive sensing principle to detect soil moisture. It avoids the problem that the resistive sensor is easily corroded, and greatly prolongs its working life. The analog AO voltage output is obtained through ADC conversion, and then the state of soil moisture is obtained. The sensor has a built-in voltage stabilizing chip and supports a 3.3~5.5V voltage working environment.

[0056] The carbon dioxide sensor uses a metal oxide indoor gas sensor SGP30 that integrates multiple sensor elements. It integrates 4 gas sensor elements and has a fully calibrated air quality output signal, which is mainly used to detect air quality. It can output: TVOC (Total Volatile Organic Compounds), with a range of 0~60000ppb; CO2 concentration, with a range of 400~60000ppm.

[0057] The light sensor uses a digital light intensity sensor integrated circuit BH1750 for a two-wire serial bus interface. It can adjust the brightness of the LCD or keyboard backlight according to the collected light intensity data. Its high resolution can detect a wide range of light intensity changes. The interior of BH1750 is composed of a photosensitive diode, an operational amplifier, an ADC acquisition, a crystal oscillator, etc. It corresponds to a wide range of input light (equivalent to 1-65535lx), the minimum error change is within 20%, and it is little affected by infrared rays.

[0058] The raindrop sensor uses an analog (digital) input module, also called a rain sensor. It can be used to monitor various weather conditions, detect whether it is raining and the amount of rain, and convert it into a digital signal (DO) and an analog signal (AO) output. It is widely used in Arduino robot kits, raindrops, rain sensors, can be used to monitor various weather conditions, and convert them into digital signals and AO outputs.

[0059] The atmospheric pressure sensor described above adopts a digital atmospheric pressure sensor module, BMP180. BMP180 adopts micro-electromechanical system (MEMS) technology and can provide high-precision atmospheric pressure and temperature measurement results. It communicates with the main control device through the I2C interface and outputs digital measurement results, which is convenient for integration and processing.

[0060] The 4G communication module adopts the LTE Cat.1 bis communication module Air780E launched by Hezhou Communication. Air780E is a 4G full network access module that can adapt to different operators and products to ensure maximum flexibility in product design. It supports SPI LCD; supports SPI Camera; supports USB 2.0; supports PSM digital voice interface; supports multiple development methods, such as USB Internet access, standard AT, LuatOS, CSDK secondary development, etc., and supports LTE 3GPP Rel.13 technology.

[0061] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. An intelligent hail prevention control system for an orchard, characterized in that Sensors are used to monitor the natural environment, MCU processes sensor information, and control modules drive motors, thus achieving intelligent and automated hail prevention.

2. The orchard intelligent hail prevention control system according to claim 1 is characterized by: The orchard hail prevention net system comprises a control module and a sensor module.

3. The orchard intelligent hail prevention control system according to claim 2 is characterized by: The control module is composed of an MCU with a 32-bit microprocessor STM32F103ZET6 from STMicroelectronics as the control core, a power supply circuit design, and a stepper motor circuit.

4. The orchard intelligent hail prevention control system according to claim 2 is characterized by: The sensor module consists of a wind speed and direction sensor, an air temperature and humidity sensor, a soil temperature and humidity sensor, a carbon dioxide sensor, a light sensor, a raindrop sensor, an atmospheric pressure sensor, and a 4G communication module.

5. According to the orchard intelligent hail prevention control system of claim 2, multiple modules are connected by control connecting lines and PCB microstrip lines to achieve multi-module interaction.

6. According to the control module of the orchard intelligent hail prevention system of claim 3, the circuits of the MCU and the LCD display screen require 3.3V and 5V supply, and the LM2596 and AMS1117 series linear voltage regulator modules are used to convert the 24V power supply.

7. According to the control module of the orchard intelligent hail protection system of claim 3, its stepper motor drive circuit adopts ULN2003 drive chip.

8. The ULN2003 driver chip according to claim 7 is a monolithic high voltage (up to 50V), high current (single rated output 500mA) Darlington transistor array integrated circuit. It is composed of 7 pairs of NPN Darlington transistors, and its high voltage output characteristics and cathode clamping diode can convert inductive loads.

9. According to the orchard intelligent hail prevention sensor system of claim 4, its wind speed and direction sensor adopts Max485 chip to complete the conversion from TTL level to differential level, Max485 adopts RS485 communication protocol, and has a DE (transmit enable) pin to control the data transmission direction of RS485 line.

10. According to the orchard intelligent hail prevention sensor system of claim 4, its air temperature and humidity sensor is composed of SHT30 as the core, its working principle is based on the capacitance measurement principle, and uses temperature sensor and humidity sensor to measure the temperature and humidity in the environment. Its soil temperature and humidity sensor adopts the capacitive soil temperature and humidity sensor of risym. Its carbon dioxide sensor adopts the metal oxide indoor gas sensor SGP30 which integrates multiple sensor elements. Its light sensor adopts a digital light intensity sensor integrated circuit BH1750 for two-wire serial bus interface. Its raindrop sensor adopts analog (digital) input module, also called rain and rainfall sensor. Its atmospheric pressure sensor adopts digital atmospheric pressure sensor module BMP180. Its 4G communication module adopts LTE Cat.1 bis communication module Air780E launched by Hezhou Communication.

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