Intelligent integrated control system for agricultural vegetable greenhouse

Abstract

The invention relates to the technical field of agricultural vegetable greenhouse intelligent control, and provides an agricultural vegetable greenhouse intelligent integrated control system, which comprises a core board, an STM32F103C8T6 core board is adopted, the STM32F103C8T6 core board carries a microcontroller of an Arm Cortex-M3 core, 32-bit CPU performance is provided, the microcontroller is used for executing control tasks, data processing and communication, and the core board is connected with the microcontroller. An intelligent control system of an STM32F103C8T6 core board is adopted for real-time data transmission and remote monitoring, an environment monitoring system integrating an illumination intensity sensor, a DHT11 type temperature and humidity sensor and a soil humidity sensor is adopted, a WIFI module of an ESP8266-01S module is adopted for wireless remote data transmission and control, and an intelligent environment regulation and control strategy is adopted. According to the technical scheme, the energy consumption is reduced, the service life of equipment is prolonged, the replacement frequency is reduced, and the problems of high energy consumption and short service life in the prior art are solved by adopting the integral design with high stability and reliability and adopting the energy-saving sensor and the controller.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent control of agricultural vegetable greenhouses, and in particular to an intelligent integrated control system for agricultural vegetable greenhouses. Background Art

[0002] At present, agricultural vegetable greenhouse intelligence is a modern agricultural technology that applies intelligent control systems to vegetable greenhouse cultivation. The agricultural vegetable greenhouse control systems in the existing technology often have the following problems: system stability and reliability issues: some intelligent control systems are insufficient in stability and reliability, and are prone to failures that lead to production interruptions or losses; poor usability: some systems are complex to operate, which is not conducive to farmers' quick start and daily use; low integration: although some systems have achieved intelligent control, the system integration is low, and the compatibility between components is poor, affecting the overall performance, which leads to higher energy consumption during use, and because of its high energy consumption during use, the temperature of the equipment is also at a higher temperature for a long time, which is prone to failures and reduces the service life of the equipment. Summary of the invention

[0003] The present invention provides an intelligent integrated control system for agricultural vegetable greenhouses, which solves the problems of high energy consumption and short service life in related technologies.

[0004] The technical solution of the present invention is as follows: an intelligent integrated control system for agricultural vegetable greenhouses, comprising: Core board: STM32F103C8T6 core board is used. The STM32F103C8T6 core board is equipped with a microcontroller with an Arm Cortex-M3 core, providing 32-bit CPU performance for executing control tasks, data processing and communication; Light intensity sensor: In the greenhouse, the light intensity sensor monitors the light requirements of plants in real time and monitors the light intensity and duration; Soil moisture sensor: YL-69 soil moisture sensor is used. YL-69 soil moisture sensor is used to monitor the moisture content in the soil in real time and accurately. Temperature and humidity sensor: HDT11 temperature and humidity sensor is used. HDT11 temperature and humidity sensor can measure the temperature and humidity in the environment in real time and accurately, and output these data in the form of digital signals. It integrates temperature sensor and humidity sensor, and senses the temperature and humidity changes in the environment through thermistor and humidity on capacitor respectively. The measured temperature and humidity data are converted into digital signals through the internal signal conditioning circuit and then output to the microcontroller; The STM32F103C8T6 core board collects data such as light intensity and soil moisture through ADC, and collects temperature and humidity information from the HDT11 temperature and humidity sensor through a single bus to achieve comprehensive monitoring of environmental parameters in the greenhouse. In terms of sensors, users can choose various types of sensors according to their needs, such as temperature and humidity sensors, light sensors, and environmental changes in the greenhouse are sensed by these sensors. They can convert data into an easy-to-understand form and provide it to the data acquisition gateway for processing. The data acquisition gateway is the core of the system and is responsible for receiving sensor data and analyzing and processing it. The collected data is then transmitted to the data center for more in-depth processing and analysis. In addition, it also provides data storage and management functions to help users understand the growth status of vegetables and the operating status of equipment in more detail. The collected data is transmitted to the remote mobile phone APP in real time through the STM32F103C8T6 core board, and users can intuitively view the environmental conditions in the greenhouse on their mobile phones. , and perform remote operations when necessary, such as starting and stopping water pumps, fans, and heaters. Through this interface, they can intuitively view the environmental parameters of every corner of the greenhouse, including temperature, humidity, light intensity and other key data at a glance. At the same time, users can also monitor and control the status of the equipment in real time, such as adjusting the irrigation system through remote operation. Whether it is adjusting the irrigation mode to adapt to the different growth stages of plants, or adjusting the light brightness according to weather changes, it can be easily completed. The field measurement and control system software is mainly designed and programmed for the data gateway with the STM32F103C8T6 core board as the core control module, covering port initialization and the data gateway access to the cloud platform through the WIFI module; Display: OLED display has the characteristics of self-luminescence, which can achieve precise light control at the pixel level and show a real picture with high contrast and wide color gamut; WIFI module: ESP8266WIFI module is used. ESP8266WiFi module integrates complete WiFi functions, supports 802.11 b / g / n wireless standards, realizes wireless communication between devices and the Internet, and provides a serial communication interface to facilitate data exchange with external devices such as microcontrollers. In addition, ESP8266 also supports multiple network protocols and encryption methods; Water pump module: pressurizes the water source and evenly delivers it to all parts of the greenhouse through the irrigation system; Fan module: used to regulate the air circulation in the greenhouse, accelerate the air circulation by generating wind, and thus effectively control the temperature and humidity in the greenhouse; Humidifier module: used to adjust the humidity environment in the greenhouse; Mobile phone APP: used to receive light intensity, soil temperature and humidity, and greenhouse temperature and humidity signals.

[0005] The STM32F103C8T6 core board is used as the main control, and the IIC communication protocol is used to drive the OLED display screen, so that data can be viewed in real time on the circuit board; data is transmitted through the UART serial communication protocol, and the current data is sent to the remote mobile phone APP. At the same time, the STM32F103C8T6 core board can also receive and collect data sent by the APP to achieve IO control output high and low levels, drive the transistor, and turn on the water pump or fan, humidifier. The STM32F103C8T6 core board collects light intensity and soil humidity data through ADC and displays them on the OLED display screen. These data can be uploaded to the collection mobile phone APP through the WIFI module; the STM32F103C8T6 core board collects the temperature and humidity information of the HDT11 temperature and humidity sensor through a single bus. The STM32F103C8T6 core board is the core and is responsible for coordinating the work of various sensors and actuators to achieve intelligent control of the greenhouse environment. At the same time, the STM32F103C8T6 core board will also exchange data with the host computer through serial port communication to achieve remote monitoring and management. The use of the STM32F103C8T6 core board can greatly simplify the design complexity of the system and improve the stability and reliability of the system.

[0006] As a preferred solution of the present invention, the light intensity sensor is composed of a photosensor module and a conversion and output module, the soil moisture sensor is composed of a soil moisture sensor element module and a signal processing module, and the temperature and humidity sensor is composed of a temperature and humidity sensor element module and a microprocessor module; Photosensitive element module: used to sense changes in ambient light intensity and convert the optical signal into an electrical signal for subsequent circuit processing or analysis; Conversion and output module: used to convert the received light signal into an electrical signal through the photosensitive element, and further process the electrical signal to ensure that it can be accurately output and used, thereby achieving effective monitoring and response to light changes; Soil moisture sensor element module: According to the changes in resistivity or conductivity caused by changes in soil moisture, these physical quantities are converted into measurable electrical signals; Signal processing module: amplifies, filters, and converts the original signal of the sensor to remove noise, improve signal quality and stability, and convert analog signals into digital signals; Temperature and humidity sensor module: used to monitor the temperature and humidity levels in the environment at the same time. Through the built-in sensitive elements, it can sense the temperature changes and humidity changes of the surrounding air, and convert these physical quantities into corresponding electrical signals; Microprocessor module: The processor uses built-in algorithms to filter and calibrate the converted digital signals to remove noise and errors, improve data accuracy and reliability, and then output the processed temperature and humidity data in digital form for use by external devices, control systems, and user interfaces; Temperature and humidity sensor The temperature sensor is based on the monitoring and analysis system of the DHT11 sensor, which is specially used for the fine control of the agricultural greenhouse environment. As an integrated temperature and humidity sensor element, DHT11 simplifies the connection with various systems with its three-pin single-row layout, ensuring wide compatibility. The digital signal it outputs has been strictly calibrated and can accurately reflect the temperature and humidity conditions in the greenhouse, fully meeting the needs of high-precision monitoring. It cleverly combines resistive humidity detection technology with NTC thermistor temperature sensor, and realizes real-time capture of agricultural greenhouse environmental parameters through efficient collaboration with the STM32F103C8T6 core board and its peripheral circuits. The data collected by the sensor is output in 40-bit binary format each time, of which the first 16 bits are dedicated to the encoding of humidity information, the following 16 bits accurately represent temperature data, and the last 8 bits play a verification role to ensure accurate data transmission; Humidity control module: The YL-69 soil moisture sensor has an excellent design, a long service life, and can maintain close contact with the soil. For the comparator, the stable and reliable LM393 chip is selected. The peripheral circuit design is simple, which reduces the production cost and achieves high cost performance. At the same time, the sensor works with STM32 to efficiently collect soil moisture information, and the power consumption is controllable. In terms of temperature control logic, the system makes intelligent judgments based on the data fed back by the DHT11 sensor: when the greenhouse temperature is detected to be lower than the preset threshold, the system will automatically trigger the heating device to effectively improve the temperature environment in the greenhouse; on the contrary, if the temperature exceeds the safety upper limit, the system will quickly start the ventilation equipment to adjust and lower the temperature, thereby maintaining the best state of the greenhouse environment. This process not only demonstrates the convenience of automatic control, but also ensures the stability and suitability of the growth environment of crops. As a preferred solution of the present invention, the water pump module is composed of a water drive system module, a hydraulic system module and a filter module, the fan module is composed of a wind drive system module, a wind power generation system module and a dust reduction module, and the humidifier module is composed of a humidification execution module, a water quality treatment module and a water level monitoring module; Water drive system module: responsible for managing and controlling the movement of water flow to drive the operation of the auxiliary water pump; Hydraulic system module: used to control the water flow in, out and circulation process inside the hydraulic equipment, and to adjust the speed, pressure and direction parameters of the water flow to meet the needs of different application scenarios; Filtration module: used to ensure the cleanliness and purity of water in the water pump system. Through the built-in filtering medium or mechanism, it can effectively remove impurities, particulate matter and pollutants that may damage the water pump, protect the water pump from wear and blockage, and thus maintain the efficient and stable operation of the water pump; Drive system module: used to control the start, stop and speed adjustment of the fan; Wind generation system module: used for air circulation and ventilation in the greenhouse, helping to regulate the temperature and humidity in the greenhouse; Dust reduction module: Use the strong airflow generated by the rotation of the fan to blow away the dust particles in the greenhouse and discharge them outdoors, thereby reducing the dust concentration in the air; Humidification execution module: The high-frequency vibration of the ultrasonic oscillator breaks up the water molecules into tiny water mist particles, and then blows the water mist into the air through a fan and other devices to achieve a humidification effect; Water treatment module: removes impurities, minerals and microorganisms in water through filtration, softening and sterilization, thereby protecting the internal components of the humidifier from corrosion and scaling, and reducing the spread of harmful microorganisms such as bacteria and viruses in the air; Water level monitoring module: used to monitor the water level in the humidifier water tank in real time; As a preferred solution of the present invention, the WIFI processing module is composed of a processor module and a WIFI communication module; Processor module: responsible for receiving wireless signals from wireless routers, decoding data in the signals, and forwarding them to connected devices. At the same time, it encodes the data sent by the devices into wireless signals and sends them to wireless routers or other wireless devices. It also has network management functions to ensure the security and stability of the network. WIFI communication module: encodes and modulates the data generated by the device or the information received through WIFI signals and then wirelessly sends them to the designated network access point or other WIFI devices. At the same time, it can also receive WIFI signals from the network, decode and demodulate them to obtain the transmitted data or instructions; In the smart agricultural greenhouse monitoring system, the field sensors transmit the field environmental parameters through the data gateway. The cloud platform is the final data processing service platform. In order to enable the greenhouse environmental information parameters received by the data gateway to be uploaded to the cloud platform completely and quickly, the ESP8266-01S module is developed and designed. Through the communication method of the WIFI module, the public network of the system application site is connected to the cloud platform. The cloud platform and the data gateway establish a TCP / IP protocol to receive data and issue related instructions. The software design of the ESP8266-01S module mainly involves the process code writing of data uploading and instruction receiving. First, the various parts of the module are initialized, and then the information is processed to generate a specific information format. Then, by sending the verification AT command, the information content and format are verified to be abnormal. If the verification is successful, the data will be integrated and packaged, following the TCP / IP transmission protocol, and finally the data will be uploaded to the cloud platform. If the uploaded data is abnormal, the command will continue to be sent for judgment until it is uploaded to the cloud platform normally.

[0007] As a preferred solution of the present invention, the display screen is composed of a display module, a PCB module and a driving chip module; Display module: Its self-luminous and backlight-free characteristics enable high contrast and low power consumption; PCB module: connects various electronic components together to achieve circuit integration and signal transmission; Driver chip module: used to receive external input signals and convert them into a format that can be recognized by the OLED display, thereby driving the OLED display to work normally; In view of the self-luminous characteristics of the display screen, the flexible panel exhibits excellent performance in a wide range of application temperatures, such as no need for backlight, high contrast, thin thickness, wide viewing angle and fast response time. When used in flat-panel displays, it is regarded as the next generation of new application technology. Its light-emitting principle: OLED is a new type of display device formed by coating a very thin organic substance on a glass substrate. These organic substances emit light as electric charges flow through them. The light-emitting color of OLED is related to the material of the organic light-emitting layer. Therefore, the desired color can be obtained by selecting the material. The actively arranged organic light-emitting diode display has a set of circuits inside, so each pixel is driven by the corresponding circuit. The OLED display will display the temperature, ambient humidity, light intensity and soil moisture in real time.

[0008] As a preferred solution of the present invention, the mobile phone APP consists of a data collection module and a command issuing module; Data collection module: used to collect key data from the greenhouse environment in real time and accurately; Command issuing module: The instructions given by the user through the interface or input device are parsed, converted, and sent to the corresponding execution system and equipment to ensure that the user's operation intentions can be conveyed accurately and timely, thereby realizing remote control, parameter adjustment, and task scheduling operations of the device or system.

[0009] The working principle and beneficial effects of the present invention are: The present invention adopts the real-time data transmission and remote monitoring of the intelligent control system of the STM32F103C8T6 core board, the environmental monitoring system integrating the light intensity sensor, the DHT11 temperature and humidity sensor and the soil moisture sensor, the wireless remote data transmission and control of the WIFI module of the ESP8266-01S module, the intelligent environmental control strategy, the overall design with high stability and reliability, and the energy-saving sensors and controllers, thereby reducing energy consumption, extending the life of the equipment, and reducing the replacement frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0011] Figure 1 It is a schematic diagram of the principle structure of the present invention; Figure 2 This is a schematic diagram of the flow of the temperature and humidity sensor of the present invention; Figure 3 This is a schematic diagram of the process of the soil moisture sensor of the present invention; Figure 4 It is a schematic diagram of the STM32F103C8T6 core board flow chart of the present invention; Figure 5 It is a schematic diagram of the WIFI module flow of the present invention. DETAILED DESCRIPTION

[0012] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] Example 1 In this embodiment, an agricultural vegetable greenhouse intelligent integrated control system includes: Core board: STM32F103C8T6 core board is used. The STM32F103C8T6 core board is equipped with a microcontroller with an Arm Cortex-M3 core, providing 32-bit CPU performance for executing control tasks, data processing and communication; Light intensity sensor: In the greenhouse, the light intensity sensor monitors the light requirements of plants in real time and monitors the light intensity and duration; Soil moisture sensor: YL-69 soil moisture sensor is used. YL-69 soil moisture sensor is used to monitor the moisture content in the soil in real time and accurately. Temperature and humidity sensor: HDT11 temperature and humidity sensor is used. HDT11 temperature and humidity sensor can measure the temperature and humidity in the environment in real time and accurately, and output these data in the form of digital signals. It integrates temperature sensor and humidity sensor, and senses the temperature and humidity changes in the environment through thermistor and humidity on capacitor respectively. The measured temperature and humidity data are converted into digital signals through the internal signal conditioning circuit and then output to the microcontroller; The STM32F103C8T6 core board collects data such as light intensity and soil moisture through ADC, and collects temperature and humidity information from the HDT11 temperature and humidity sensor through a single bus to achieve comprehensive monitoring of environmental parameters in the greenhouse. In terms of sensors, users can choose various types of sensors according to their needs, such as temperature and humidity sensors, light sensors, and environmental changes in the greenhouse are sensed by these sensors. They can convert data into an easy-to-understand form and provide it to the data acquisition gateway for processing. The data acquisition gateway is the core of the system and is responsible for receiving sensor data and analyzing and processing it. The collected data is then transmitted to the data center for more in-depth processing and analysis. In addition, it also provides data storage and management functions to help users understand the growth status of vegetables and the operating status of equipment in more detail. The collected data is transmitted to the remote mobile phone APP in real time through the STM32F103C8T6 core board, and users can intuitively view the environmental conditions in the greenhouse on their mobile phones. , and perform remote operations when necessary, such as starting and stopping water pumps, fans, and heaters. Through this interface, they can intuitively view the environmental parameters of every corner of the greenhouse, including temperature, humidity, light intensity and other key data at a glance. At the same time, users can also monitor and control the status of the equipment in real time, such as adjusting the irrigation system through remote operation. Whether it is adjusting the irrigation mode to adapt to the different growth stages of plants, or adjusting the light brightness according to weather changes, it can be easily completed. The field measurement and control system software is mainly designed and programmed for the data gateway with the STM32F103C8T6 core board as the core control module, covering port initialization and the data gateway access to the cloud platform through the WIFI module; Display: OLED display has the characteristics of self-luminescence, which can achieve precise light control at the pixel level and show a real picture with high contrast and wide color gamut; WIFI module: ESP8266WIFI module is used. ESP8266WiFi module integrates complete WiFi functions, supports 802.11 b / g / n wireless standards, realizes wireless communication between devices and the Internet, and provides a serial communication interface to facilitate data exchange with external devices such as microcontrollers. In addition, ESP8266 also supports multiple network protocols and encryption methods; Water pump module: pressurizes the water source and evenly delivers it to all parts of the greenhouse through the irrigation system; Fan module: used to regulate the air circulation in the greenhouse, accelerate the air circulation by generating wind, and thus effectively control the temperature and humidity in the greenhouse; Humidifier module: used to adjust the humidity environment in the greenhouse; Mobile phone APP: used to receive light intensity, soil temperature and humidity, and greenhouse temperature and humidity signals.

[0014] The STM32F103C8T6 core board is used as the main control, and the IIC communication protocol is used to drive the OLED display screen, so that data can be viewed in real time on the circuit board; data is transmitted through the UART serial communication protocol, and the current data is sent to the remote mobile phone APP. At the same time, the STM32F103C8T6 core board can also receive and collect data sent by the APP to achieve IO control output high and low levels, drive the transistor, and turn on the water pump or fan, humidifier. The STM32F103C8T6 core board collects light intensity and soil humidity data through ADC and displays them on the OLED display screen. These data can be uploaded to the collection mobile phone APP through the WIFI module; the STM32F103C8T6 core board collects the temperature and humidity information of the HDT11 temperature and humidity sensor through a single bus. The STM32F103C8T6 core board is the core and is responsible for coordinating the work of various sensors and actuators to achieve intelligent control of the greenhouse environment. At the same time, the STM32F103C8T6 core board will also exchange data with the host computer through serial port communication to achieve remote monitoring and management. The use of the STM32F103C8T6 core board can greatly simplify the design complexity of the system and improve the stability and reliability of the system.

[0015] Specifically, the light intensity sensor is composed of a photosensor module and a conversion and output module, the soil moisture sensor is composed of a soil moisture sensor element module and a signal processing module, and the temperature and humidity sensor is composed of a temperature and humidity sensor element module and a microprocessor module; Photosensitive element module: used to sense changes in ambient light intensity and convert the optical signal into an electrical signal for subsequent circuit processing or analysis; Conversion and output module: used to convert the received light signal into an electrical signal through the photosensitive element, and further process the electrical signal to ensure that it can be accurately output and used, thereby achieving effective monitoring and response to light changes; Soil moisture sensor element module: According to the changes in resistivity or conductivity caused by changes in soil moisture, these physical quantities are converted into measurable electrical signals; Signal processing module: amplifies, filters, and converts the original signal of the sensor to remove noise, improve signal quality and stability, and convert analog signals into digital signals; Temperature and humidity sensor module: used to monitor the temperature and humidity levels in the environment at the same time. Through the built-in sensitive elements, it can sense the temperature changes and humidity changes of the surrounding air, and convert these physical quantities into corresponding electrical signals; Microprocessor module: The processor uses built-in algorithms to filter and calibrate the converted digital signals to remove noise and errors, improve data accuracy and reliability, and then output the processed temperature and humidity data in digital form for use by external devices, control systems, and user interfaces; Temperature and humidity sensor The temperature sensor is based on the monitoring and analysis system of the DHT11 sensor, which is specially used for the fine control of the agricultural greenhouse environment. As an integrated temperature and humidity sensor element, DHT11 simplifies the connection with various systems with its three-pin single-row layout, ensuring wide compatibility. The digital signal it outputs has been strictly calibrated and can accurately reflect the temperature and humidity conditions in the greenhouse, fully meeting the needs of high-precision monitoring. It cleverly combines resistive humidity detection technology with NTC thermistor temperature sensor, and realizes real-time capture of agricultural greenhouse environmental parameters through efficient collaboration with the STM32F103C8T6 core board and its peripheral circuits. The data collected by the sensor is output in 40-bit binary format each time, of which the first 16 bits are dedicated to the encoding of humidity information, the following 16 bits accurately represent temperature data, and the last 8 bits play a verification role to ensure accurate data transmission; Humidity control module: The YL-69 soil moisture sensor has an excellent design, a long service life, and can maintain close contact with the soil. For the comparator, the stable and reliable LM393 chip is selected. The peripheral circuit design is simple, which reduces the production cost and achieves high cost performance. At the same time, the sensor works with STM32 to efficiently collect soil moisture information, and the power consumption is controllable. In terms of temperature control logic, the system makes intelligent judgments based on the data fed back by the DHT11 sensor: when the greenhouse temperature is detected to be lower than the preset threshold, the system will automatically trigger the heating device to effectively improve the temperature environment in the greenhouse; on the contrary, if the temperature exceeds the safety upper limit, the system will quickly start the ventilation equipment to adjust and lower the temperature, thereby maintaining the best state of the greenhouse environment. This process not only demonstrates the convenience of automatic control, but also ensures the stability and suitability of the growth environment of crops. In this embodiment, the water pump module is composed of a water drive system module, a hydraulic system module and a filter module, the fan module is composed of a wind drive system module, a wind power generation system module and a dust reduction module, and the humidifier module is composed of a humidification execution module, a water quality treatment module and a water level monitoring module; Water drive system module: responsible for managing and controlling the movement of water flow to drive the operation of the auxiliary water pump; Hydraulic system module: used to control the water flow in, out and circulation process inside the hydraulic equipment, and to adjust the speed, pressure and direction parameters of the water flow to meet the needs of different application scenarios; Filtration module: used to ensure the cleanliness and purity of water in the water pump system. Through the built-in filtering medium or mechanism, it can effectively remove impurities, particulate matter and pollutants that may damage the water pump, protect the water pump from wear and blockage, and thus maintain the efficient and stable operation of the water pump; Drive system module: used to control the start, stop and speed adjustment of the fan; Wind generation system module: used for air circulation and ventilation in the greenhouse, helping to regulate the temperature and humidity in the greenhouse; Dust reduction module: Use the strong airflow generated by the rotation of the fan to blow away the dust particles in the greenhouse and discharge them outdoors, thereby reducing the dust concentration in the air; Humidification execution module: The high-frequency vibration of the ultrasonic oscillator breaks up the water molecules into tiny water mist particles, and then blows the water mist into the air through a fan and other devices to achieve a humidification effect; Water treatment module: removes impurities, minerals and microorganisms in water through filtration, softening and sterilization, thereby protecting the internal components of the humidifier from corrosion and scaling, and reducing the spread of harmful microorganisms such as bacteria and viruses in the air; Water level monitoring module: used to monitor the water level in the humidifier water tank in real time; Specifically, the WIFI processing module is composed of a processor module and a WIFI communication module; Processor module: responsible for receiving wireless signals from wireless routers, decoding data in the signals, and forwarding them to connected devices. At the same time, it encodes the data sent by the devices into wireless signals and sends them to wireless routers or other wireless devices. It also has network management functions to ensure the security and stability of the network. WIFI communication module: encodes and modulates the data generated by the device or the information received through WIFI signals and then wirelessly sends them to the designated network access point or other WIFI devices. At the same time, it can also receive WIFI signals from the network, decode and demodulate them to obtain the transmitted data or instructions; In the smart agricultural greenhouse monitoring system, the field sensors transmit the field environmental parameters through the data gateway. The cloud platform is the final data processing service platform. In order to enable the greenhouse environmental information parameters received by the data gateway to be uploaded to the cloud platform completely and quickly, the ESP8266-01S module is developed and designed. Through the communication method of the WIFI module, the public network of the system application site is connected to the cloud platform. The cloud platform and the data gateway establish a TCP / IP protocol to receive data and issue related instructions. The software design of the ESP8266-01S module mainly involves the process code writing of data uploading and instruction receiving. First, the various parts of the module are initialized, and then the information is processed to generate a specific information format. Then, by sending the verification AT command, the information content and format are verified to be abnormal. If the verification is successful, the data will be integrated and packaged, following the TCP / IP transmission protocol, and finally the data will be uploaded to the cloud platform. If the uploaded data is abnormal, the command will continue to be sent for judgment until it is uploaded to the cloud platform normally.

[0016] In this embodiment, the display screen is composed of a display module, a PCB module and a driver chip module; Display module: Its self-luminous and backlight-free characteristics enable high contrast and low power consumption; PCB module: connects various electronic components together to achieve circuit integration and signal transmission; Driver chip module: used to receive external input signals and convert them into a format that can be recognized by the OLED display, thereby driving the OLED display to work normally; In view of the self-luminous characteristics of the display screen, the flexible panel exhibits excellent performance in a wide range of application temperatures, such as no need for backlight, high contrast, thin thickness, wide viewing angle and fast response time. When used in flat-panel displays, it is regarded as the next generation of new application technology. Its light-emitting principle: OLED is a new type of display device formed by coating a very thin organic substance on a glass substrate. These organic substances emit light as electric charges flow through them. The light-emitting color of OLED is related to the material of the organic light-emitting layer. Therefore, the desired color can be obtained by selecting the material. The actively arranged organic light-emitting diode display has a set of circuits inside, so each pixel is driven by the corresponding circuit. The OLED display will display the temperature, ambient humidity, light intensity and soil moisture in real time.

[0017] Specifically, the mobile phone APP consists of a data collection module and a command issuing module; Data collection module: used to collect key data from the greenhouse environment in real time and accurately; Command issuing module: The instructions given by the user through the interface or input device are parsed, converted, and sent to the corresponding execution system and equipment to ensure that the user's operation intentions can be conveyed accurately and timely, thereby realizing remote control, parameter adjustment, and task scheduling operations of the device or system.

[0018] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent integrated control system for agricultural vegetable greenhouses, characterized in that: include: Core board: STM32F103C8T6 core board is used. The STM32F103C8T6 core board is equipped with a microcontroller with an Arm Cortex-M3 core, providing 32-bit CPU performance for executing control tasks, data processing and communication; Light intensity sensor: In the greenhouse, the light intensity sensor monitors the light requirements of plants in real time and monitors the light intensity and duration; Soil moisture sensor: YL-69 soil moisture sensor is used. YL-69 soil moisture sensor is used to monitor the moisture content in the soil in real time and accurately. Temperature and humidity sensor: HDT11 temperature and humidity sensor is used. HDT11 temperature and humidity sensor can measure the temperature and humidity in the environment in real time and accurately, and output these data in the form of digital signals. It integrates temperature sensor and humidity sensor, and senses the temperature and humidity changes in the environment through thermistor and humidity on capacitor respectively. The measured temperature and humidity data are converted into digital signals through the internal signal conditioning circuit and then output to the microcontroller; Display: OLED display has the characteristics of self-luminescence, which can achieve precise light control at the pixel level and show a real picture with high contrast and wide color gamut; WIFI module: ESP8266WIFI module is used. ESP8266WiFi module integrates complete WiFi functions, supports 802.11 b / g / n wireless standards, realizes wireless communication between devices and the Internet, and provides a serial communication interface to facilitate data exchange with external devices such as microcontrollers. In addition, ESP8266 also supports multiple network protocols and encryption methods; Water pump module: pressurizes the water source and evenly delivers it to all parts of the greenhouse through the irrigation system; Fan module: used to regulate the air circulation in the greenhouse, accelerate the air circulation by generating wind, and thus effectively control the temperature and humidity in the greenhouse; Humidifier module: used to adjust the humidity environment in the greenhouse; Mobile phone APP: used to receive light intensity, soil temperature and humidity, and greenhouse temperature and humidity signals.

2. The intelligent integrated control system for agricultural vegetable greenhouses according to claim 1 is characterized in that: The light intensity sensor is composed of a photosensor module and a conversion and output module, the soil moisture sensor is composed of a soil moisture sensor element module and a signal processing module, and the temperature and humidity sensor is composed of a temperature and humidity sensor element module and a microprocessor module; Photosensitive element module: used to sense changes in ambient light intensity and convert the optical signal into an electrical signal for subsequent circuit processing or analysis; Conversion and output module: used to convert the received light signal into an electrical signal through the photosensitive element, and further process the electrical signal to ensure that it can be accurately output and used, thereby achieving effective monitoring and response to light changes; Soil moisture sensor element module: According to the changes in resistivity or conductivity caused by changes in soil moisture, these physical quantities are converted into measurable electrical signals; Signal processing module: amplifies, filters, and converts the original signal of the sensor to remove noise, improve signal quality and stability, and convert analog signals into digital signals; Temperature and humidity sensor module: used to monitor the temperature and humidity levels in the environment at the same time. Through the built-in sensitive elements, it can sense the temperature changes and humidity changes of the surrounding air, and convert these physical quantities into corresponding electrical signals; Microprocessor module: The processor uses built-in algorithms to filter and calibrate the converted digital signals to remove noise and errors, improve data accuracy and reliability, and then output the processed temperature and humidity data in digital form for use by external devices, control systems, and user interfaces.

3. The intelligent integrated control system for agricultural vegetable greenhouses according to claim 1 is characterized in that: The water pump module is composed of a water drive system module, a hydraulic system module and a filter module; the fan module is composed of a wind drive system module, a wind power generation system module and a dust reduction module; the humidifier module is composed of a humidification execution module, a water quality treatment module and a water level monitoring module; Water drive system module: responsible for managing and controlling the movement of water flow to drive the operation of the auxiliary water pump; Hydraulic system module: used to control the water flow in, out and circulation process inside the hydraulic equipment, and to adjust the speed, pressure and direction parameters of the water flow to meet the needs of different application scenarios; Filtration module: used to ensure the cleanliness and purity of water in the water pump system. Through the built-in filtering medium or mechanism, it can effectively remove impurities, particulate matter and pollutants that may damage the water pump, protect the water pump from wear and blockage, and thus maintain the efficient and stable operation of the water pump; Drive system module: used to control the start, stop and speed adjustment of the fan; Wind generation system module: used for air circulation and ventilation in the greenhouse, helping to regulate the temperature and humidity in the greenhouse; Dust reduction module: Use the strong airflow generated by the rotation of the fan to blow away the dust particles in the greenhouse and discharge them outdoors, thereby reducing the dust concentration in the air; Humidification execution module: The high-frequency vibration of the ultrasonic oscillator breaks up the water molecules into tiny water mist particles, and then blows the water mist into the air through a fan and other devices to achieve a humidification effect; Water treatment module: removes impurities, minerals and microorganisms in water through filtration, softening and sterilization, thereby protecting the internal components of the humidifier from corrosion and scaling, and reducing the spread of harmful microorganisms such as bacteria and viruses in the air; Water level monitoring module: used to monitor the water level in the humidifier tank in real time.

4. The intelligent integrated control system for agricultural vegetable greenhouses according to claim 1 is characterized in that: The WIFI processing module is composed of a processor module and a WIFI communication module; Processor module: responsible for receiving wireless signals from wireless routers, decoding data in the signals, and forwarding them to connected devices. At the same time, it encodes the data sent by the devices into wireless signals and sends them to wireless routers or other wireless devices. It also has network management functions to ensure the security and stability of the network. WIFI communication module: encodes and modulates the data generated by the device or the information received through WIFI signals and sends them wirelessly to the designated network access point or other WIFI devices. At the same time, it can also receive WIFI signals from the network, decode and demodulate them to obtain the transmitted data or instructions.

5. The intelligent integrated control system for agricultural vegetable greenhouses according to claim 1 is characterized in that: The display screen is composed of a display module, a PCB module and a driver chip module; Display module: Its self-luminous and backlight-free characteristics enable high contrast and low power consumption; PCB module: connects various electronic components together to achieve circuit integration and signal transmission; Driver chip module: used to receive external input signals and convert them into a format that can be recognized by the OLED display, thereby driving the OLED display to work normally.

6. The intelligent integrated control system for agricultural vegetable greenhouses according to claim 1 is characterized in that: The mobile phone APP consists of a data collection module and a command issuing module; Data collection module: used to collect key data from the greenhouse environment in real time and accurately; Command issuing module: The instructions given by the user through the interface or input device are parsed, converted, and sent to the corresponding execution system and equipment to ensure that the user's operation intentions can be conveyed accurately and timely, thereby realizing remote control, parameter adjustment, and task scheduling operations of the device or system.

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