Intelligent water-saving valve control system for intelligent irrigation

Abstract

The invention discloses an intelligent water-saving valve control system for intelligent irrigation, which relates to the technical field of agricultural irrigation and comprises an environment detection system, a valve control system and a wind-solar complementary power supply system. The environment detection system is used for collecting soil temperature and humidity parameters, the pressure intensity value of the atmosphere, the wind direction, the rainfall capacity and the solar radiation intensity in real time and transmitting the parameters to the valve control system. The valve control system is used for judging whether to control opening or closing of a valve based on the soil temperature and humidity parameters so as to realize irrigation; the wind-solar complementary power supply system is used for supplying power to the whole system by using renewable energy wind energy and solar energy; according to the intelligent water-saving valve control system for intelligent irrigation provided by the embodiment of the invention, the irrigation requirements of plants are accurately judged, so that the purpose of timely irrigation is achieved, the optimal water demand of the plants is ensured, and meanwhile, water resources are fully utilized.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural irrigation, and in particular to an intelligent water-saving valve control system for intelligent irrigation. Background Art

[0002] my country is a country with a serious shortage of water resources and frequent water and drought disasters. Agricultural water use accounts for a very large proportion of the country's total water volume, but traditional irrigation systems lack real-time soil temperature and humidity collection. Irrigation is usually carried out at fixed time intervals or based on rough perception, resulting in over-irrigation or under-irrigation, thereby wasting water resources.

[0003] In addition, traditional irrigation systems usually rely on traditional electricity supply, which is inefficient and has a great impact on the environment. It also causes a lot of energy consumption, which not only increases the cost of agricultural production, but also may cause additional environmental load. Summary of the invention

[0004] In view of the defects in the prior art, an object of the present invention is to provide an intelligent water-saving valve control system for intelligent irrigation.

[0005] To achieve the above-mentioned purpose, the embodiment of the present invention provides an intelligent water-saving valve control system for intelligent irrigation, including an environment detection system, a valve control system, and a wind-solar complementary power supply system;

[0006] The environmental detection system is used to collect soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, solar radiation intensity in real time, and transmit them to the valve control system;

[0007] The valve control system is used to determine whether to control the opening or closing of the valve based on the soil temperature and humidity parameters to achieve irrigation;

[0008] The wind-solar complementary power supply system is used to utilize renewable energy sources such as wind energy and solar energy to provide power for the entire system;

[0009] The valve control system is also used to analyze and obtain weather conditions based on the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity.

[0010] Furthermore, the environmental detection system includes a soil temperature and humidity sensor, an air pressure sensor, a wind direction sensor, a raindrop sensor, a solar radiation sensor, and an NB-IOT wireless communication module;

[0011] The soil temperature and humidity sensor is used to collect soil temperature and humidity parameters in real time;

[0012] The air pressure sensor is used to collect the atmospheric pressure value in real time;

[0013] The wind direction sensor is used to collect wind direction in real time;

[0014] The raindrop sensor is used to collect rainfall in real time;

[0015] The solar radiation sensor is used to collect solar radiation intensity in real time;

[0016] The NB-IOT wireless communication module is used to transmit the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity to the valve control system through the NB-IOT communication protocol.

[0017] Furthermore, the valve control system includes a judgment module, an execution module, and a weather prediction module;

[0018] The judgment module is used to receive the soil temperature and humidity parameters transmitted by the environmental detection system, and to judge and analyze the soil temperature and humidity parameters to obtain a control instruction, and transmit the control instruction to the execution module;

[0019] The execution module is used to receive and execute the control instruction, control the valve to open, and realize the irrigation operation;

[0020] The weather forecast module is used to receive the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity transmitted by the environmental detection system, and analyze and process the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity to obtain weather conditions, and transmit the weather conditions to the judgment module.

[0021] Furthermore, the judgment module includes a display screen and a central microcontroller;

[0022] The display screen is used to receive and display the soil temperature and humidity parameters and the weather conditions, and transmit the soil temperature and humidity parameters to a central microcontroller;

[0023] The central microcontroller is used to make judgments based on the soil temperature and humidity parameters, obtain control instructions, and transmit the control instructions to the execution module;

[0024] The control instructions include a stop instruction, a circulation instruction, an irrigation instruction, and a stop instruction;

[0025] The display screen is also used to set a threshold value and a time threshold value, and transmit the threshold value and the time threshold value to the central microcontroller; the threshold value includes a temperature threshold value and a humidity threshold value; the time threshold value is a time period during which watering is allowed;

[0026] The central microcontroller is provided with a real-time clock RTC for obtaining the current time in real time.

[0027] Furthermore, the central microcontroller is used specifically for:

[0028] Receiving the threshold value and time threshold value set by the display screen, and the soil temperature and humidity parameters;

[0029] Acquire the current time, and when the current time is within the time threshold, make a judgment based on the soil temperature and humidity parameters in combination with the threshold;

[0030] When the soil temperature parameter is lower than the temperature threshold, it is determined that the current environment is too low in temperature to be suitable for irrigation, and the termination instruction is generated and transmitted to the execution module;

[0031] When the soil temperature parameter is higher than the temperature threshold, it is determined that the current environment is too hot and the irrigation frequency needs to be increased, and the cycle instruction is generated and transmitted to the execution module;

[0032] When the soil moisture parameter is lower than the moisture threshold, it is determined that the soil is too dry and needs irrigation, and the irrigation instruction is generated and transmitted to the execution module;

[0033] When the soil moisture parameter is higher than the moisture threshold, it is determined that the soil is too moist and irrigation needs to be stopped, and the stop instruction is generated and transmitted to the execution module.

[0034] Furthermore, the execution module includes an optical coupling isolation relay, an electric valve, and a water pump;

[0035] The optical coupling isolation relay is used to receive the control instruction, and amplify the signal of the control instruction and transmit it to the electric valve;

[0036] The electric valve is used to execute the control instruction to control the opening or closing of the electric valve;

[0037] The water pump is used to push water through the pipeline when the electric valve is opened, and release the water to the roots of the plants through the pre-arranged sprinkler heads to irrigate the plants.

[0038] Furthermore, the weather prediction module includes a data processing unit, a feature extraction unit, a model training unit, and a sending unit;

[0039] The data processing unit is used to receive the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity, and use a Kalman filter to smooth and correct the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity to obtain a time series data set;

[0040] The feature extraction unit is used to extract change features from the time series data set; after normalizing the features, a feature data set is obtained; the change features include soil temperature and humidity change features, air pressure change features, wind direction change features, rainfall change features and solar radiation intensity change features;

[0041] The model training unit is used to learn and train the feature data set based on the neural network model, so as to establish a complex relationship between soil temperature and humidity, atmospheric pressure, wind direction, rainfall, and solar radiation intensity; based on the complex relationship, predict future weather conditions to obtain weather conditions; the weather conditions include sunny days, rainy days, cloudy days, strong winds, and haze;

[0042] The sending unit is used to wirelessly transmit the weather conditions to the judgment module.

[0043] Furthermore, the wind-solar complementary power supply system includes a wind power generation module, a solar power generation module, an energy storage module, and a control module;

[0044] The wind power generation module is used to convert wind energy into electric energy for supplying the system;

[0045] The solar power generation module is used to convert solar energy into electrical energy for supplying the system through the photovoltaic effect;

[0046] The energy storage module is used to store the electric energy from the wind power generation module and the solar power generation module;

[0047] The control module is used to manage and distribute power to supply the power required by the entire system;

[0048] The wind power generation module includes a wind generator;

[0049] The wind turbine is used to convert wind energy into electrical energy, which is distributed through the control module and finally transmitted to the energy storage module.

[0050] Furthermore, the solar power generation module includes a solar panel and an automatic light tracking device;

[0051] The solar panel is used to convert solar energy into electrical energy through the photovoltaic effect, and distribute it through the control module and finally transmit it to the energy storage module;

[0052] The automatic light-chasing device is installed on the solar panel and is used to ensure that the solar panel is always in the best light-receiving state when there is light.

[0053] Furthermore, the energy storage module includes a lithium battery 1 and a lithium battery 2; the control module includes a voltage sensor, a current sensor, a single-chip microcomputer, and an electronic switch;

[0054] The voltage sensor is used to measure the output voltage of the wind power generation module and the solar power generation module, and to measure the input voltage of the lithium battery 1 and the lithium battery 2;

[0055] The current sensor is used to measure the output current of the wind power generation module and the solar power generation module;

[0056] The single chip computer is used to calculate the power of the wind power generation module and the solar power generation module respectively based on the output voltage and the output current, and then judge and control the electronic switch to be turned off or on based on the input voltage and the power, and obtain a corresponding power supply mode, and use the power supply mode to power the system; the power supply mode includes a first mode, a second mode, a third mode, and a fourth mode;

[0057] The electronic switch uses MOS tubes for control switching, and is used to achieve power switching between the wind power generation module and the solar power generation module; the MOS tubes include Q1, Q2, Q3, Q4, Q5, and Q6.

[0058] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0059] 1. The water-saving effect is obvious and water resources are fully utilized

[0060] By collecting soil temperature and humidity in real time through the environmental detection system, the system can accurately determine the timing of irrigation, so as to achieve the goal of timely irrigation, ensure the optimal water demand of plants, and effectively save water resources.

[0061] 2. Intelligent management, saving human resources

[0062] Through the collaborative cooperation between systems, the automated execution process of intelligent irrigation is realized, which effectively reduces the complexity and fault tolerance of manual operations and improves the irrigation efficiency of farmland and the growth quality of crops.

[0063] 3. Use of renewable energy to save energy

[0064] The wind-solar complementary power supply system realizes the complementary use of renewable energy wind energy and solar energy. For example, during the day, when wind energy is weak, solar energy can be used as a complementary auxiliary production capacity; at night, when there is no solar energy, wind energy can be used as a complementary auxiliary production capacity; in summer, the air volume expands due to high temperature, and the lower air density leads to smaller wind energy, but strong solar radiation and larger solar energy; in winter, the air volume shrinks due to low temperature, and the higher air density leads to stronger wind energy, but weak solar radiation and smaller solar energy. Therefore, the wind-solar complementary power supply system effectively utilizes the complementarity of the two, and realizes the rational allocation and efficient use of resources while saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0066] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0067] Figure 2 This is a schematic diagram of the environmental detection system structure;

[0068] Figure 3 It is a schematic diagram of the valve control system structure;

[0069] Figure 4 It is the implementation flow chart of the central microcontroller of the valve control system;

[0070] Figure 5 This is a structural diagram of the wind-solar complementary power supply system;

[0071] Figure 6 The electronic switch circuit diagram of the control module of the wind-solar hybrid power supply system;

[0072] Figure 7 This is a flow chart for the implementation of the control module of the wind-solar complementary power supply system.

[0073] In the attached drawings, 1 is an environmental detection system, 2 is a valve control system, 3 is a wind-solar complementary power supply system, 11 is a soil temperature and humidity sensor, 12 is an air pressure sensor, 13 is a wind direction sensor, 14 is a raindrop sensor, 15 is a solar radiation sensor, 16 is a NB-IOT wireless communication module, 21 is a judgment module, 22 is an execution module, 23 is a weather forecast module, 31 is a wind power generation module, 32 is a solar power generation module, 33 is an energy storage module, and 34 is a control module. DETAILED DESCRIPTION

[0074] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0075] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0076] like Figure 1 As shown, the embodiment of the present invention provides an intelligent water-saving valve control system for intelligent irrigation, including an environment detection system 1, a valve control system 2, and a wind-solar complementary power supply system 3;

[0077] The environmental detection system 1 is used to collect soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, solar radiation intensity in real time, and transmit them to the valve control system 2;

[0078] The valve control system 2 is used to determine whether to control the opening or closing of the valve based on the soil temperature and humidity parameters to achieve irrigation;

[0079] The wind-solar complementary power supply system 3 is used to use renewable energy wind energy and solar energy to provide power for the entire system;

[0080] The valve control system 2 is also used to analyze the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity to obtain weather conditions.

[0081] Furthermore, if Figure 2 As shown, the environment detection system 1 described in the embodiment of the present invention includes a soil temperature and humidity sensor 11, an air pressure sensor 12, a wind direction sensor 13, a raindrop sensor 14, a solar radiation sensor 15, and a NB-IOT wireless communication module 16;

[0082] The soil temperature and humidity sensor 11 is used to collect soil temperature and humidity parameters in real time;

[0083] The air pressure sensor 12 is used to collect the atmospheric pressure value in real time;

[0084] The wind direction sensor 13 is used to collect wind direction in real time;

[0085] The raindrop sensor 14 is used to collect rainfall in real time;

[0086] The solar radiation sensor 15 is used to collect solar radiation intensity in real time;

[0087] The NB-IOT wireless communication module 16 is used to transmit the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity to the valve control system 2 through the NB-IOT communication protocol.

[0088] Furthermore, if Figure 3 As shown, the valve control system 2 described in the embodiment of the present invention includes a judgment module 21, an execution module 22, and a weather prediction module 23;

[0089] The judgment module 21 is used to receive the soil temperature and humidity parameters transmitted by the environment detection system 1, and to judge and analyze the soil temperature and humidity parameters to obtain a control instruction, and transmit the control instruction to the execution module 22;

[0090] The execution module 22 is used to receive and execute the control instruction, control the valve to open, and implement the irrigation operation;

[0091] The weather prediction module 23 is used to receive the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity transmitted by the environmental detection system 1, and analyze and process the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity to obtain weather conditions, and transmit the weather conditions to the judgment module 21.

[0092] Furthermore, the judgment module 21 includes a display screen and a central microcontroller;

[0093] The display screen is used to receive and display the soil temperature and humidity parameters transmitted by the environment detection system 1 and the weather conditions transmitted by the weather prediction module 23, and transmit the soil temperature and humidity parameters to the central microcontroller;

[0094] The central microcontroller is used to make a judgment based on the soil temperature and humidity parameters, obtain a control instruction, and transmit the control instruction to the execution module 22;

[0095] The control instructions include a stop instruction, a circulation instruction, an irrigation instruction, and a stop instruction;

[0096] The display screen is also used to set a threshold value and a time threshold value, and transmit the threshold value and the time threshold value to the central microcontroller; the threshold value includes a temperature threshold value and a humidity threshold value; the time threshold value is a time period during which watering is allowed;

[0097] The central microcontroller is provided with a real-time clock RTC for obtaining the current time in real time.

[0098] Furthermore, the execution module 22 includes an optical coupling isolation relay, an electric valve, and a water pump;

[0099] The optical coupling isolation relay is used to receive the control instruction, and amplify the signal of the control instruction and transmit it to the electric valve;

[0100] The electric valve is used to execute the control instruction to control the opening or closing of the electric valve;

[0101] The water pump is used to push water through the pipeline when the electric valve is opened, and release the water to the roots of the plants through the pre-arranged sprinkler heads to irrigate the plants.

[0102] Furthermore, the weather prediction module 23 includes a data processing unit, a feature extraction unit, a model training unit, and a sending unit;

[0103] The data processing unit is used to receive the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity, and use a Kalman filter to smooth and correct the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity to obtain a time series data set;

[0104] The feature extraction unit is used to extract change features from the time series data set; after normalizing the features, a feature data set is obtained; the change features include soil temperature and humidity change features, air pressure change features, wind direction change features, rainfall change features and solar radiation intensity change features;

[0105] The model training unit is used to learn and train the feature data set based on the neural network model, so as to establish a complex relationship between soil temperature and humidity, atmospheric pressure, wind direction, rainfall, and solar radiation intensity; based on the complex relationship, predict future weather conditions to obtain weather conditions; the weather conditions include sunny days, rainy days, cloudy days, strong winds, and haze;

[0106] The sending unit is used to wirelessly transmit the weather conditions to the judgment module 21 .

[0107] Furthermore, if Figure 4 As shown, the central microcontroller described in the embodiment of the present invention is specifically used for:

[0108] S211, receiving the threshold value and the time threshold value set by the display screen, and the soil temperature and humidity parameters;

[0109] S212, obtaining the current time;

[0110] S213, whether the current time is within the time threshold, if yes, execute step S214, otherwise execute step S215;

[0111] S214, making a judgment based on the soil temperature and humidity parameters in combination with the threshold value;

[0112] S215, directly generating the abort instruction;

[0113] S216, whether the soil temperature parameter is higher than the temperature threshold, if so, execute step S219, otherwise execute step S218;

[0114] S217, whether the soil moisture parameter is higher than the moisture threshold, if so, execute step S221, otherwise execute step S220;

[0115] S218, determining that the current environment is too low in temperature to be suitable for irrigation, and generating the termination instruction;

[0116] S219, determining that the current environment is too hot and the irrigation frequency needs to be increased, and generating the cycle instruction;

[0117] S220, determining that the soil is too dry and needs irrigation, and generating the irrigation instruction;

[0118] S221, determining that the soil is too wet and irrigation needs to be stopped, and generating the stop instruction;

[0119] S222 , transmitting the control instruction to the execution module 22 .

[0120] Specifically, the abort instruction is used to prohibit the opening of valves and water pumps for a period of time to prohibit irrigation of plants; the cycle instruction is used to open the valves and water pumps at intervals for cyclic irrigation of plants; the irrigation instruction is used to open the valves and water pumps to irrigate plants; the stop instruction is used to close the valves and water pumps to stop irrigating plants.

[0121] Furthermore, if Figure 5 As shown, the wind-solar complementary power supply system 3 described in the embodiment of the present invention includes a wind power generation module 31, a solar power generation module 32, an energy storage module 33, and a control module 34;

[0122] The wind power generation module 31 is used to convert wind energy into electric energy for supplying the system;

[0123] The solar power generation module 32 is used to convert solar energy into electrical energy for supplying the system through the photovoltaic effect;

[0124] The energy storage module 33 is used to store the electric energy from the wind power generation module 31 and the solar power generation module 32;

[0125] The control module 34 is used to manage and distribute power to supply the power required by the entire system;

[0126] The wind power generation module 31 includes a wind power generator;

[0127] The wind turbine is used to convert wind energy into electrical energy, which is distributed through the control module 34 and finally transmitted to the energy storage module 33 .

[0128] Furthermore, the solar power generation module 32 includes a solar panel and an automatic light tracking device;

[0129] The solar panel is used to convert solar energy into electrical energy through the photovoltaic effect, and distribute it through the control module 34, and finally transmit it to the energy storage module 33;

[0130] The automatic light-chasing device is installed on the solar panel and is used to ensure that the solar panel is always in the best light-receiving state when there is light.

[0131] Furthermore, the energy storage module 33 includes a lithium battery 1 and a lithium battery 2; the control module 34 includes a voltage sensor, a current sensor, a single-chip microcomputer, and an electronic switch;

[0132] The voltage sensor is used to measure the output voltage of the wind power generation module 31 and the solar power generation module 32, and to measure the input voltage of the lithium battery 1 and the lithium battery 2;

[0133] The current sensor is used to measure the output current of the wind power generation module 31 and the solar power generation module 32;

[0134] The single-chip microcomputer is a PIC16F877A single-chip microcomputer, which is used to calculate the power of the wind power generation module 31 and the solar power generation module 32 based on the output voltage and the output current, and then judge and control the electronic switch to be turned off or on based on the input voltage and the power, and obtain the corresponding power supply mode, and use the power supply mode to power the system;

[0135] The electronic switch uses MOS tubes for control switching, and is used to achieve power switching between the wind power generation module 31 and the solar power generation module 32; the MOS tubes include Q1, Q2, Q3, Q4, Q5, and Q6.

[0136] Furthermore, if Figures 6 to 7 As shown, the specific implementation process of the control module 34 described in the embodiment of the present invention is as follows:

[0137] S341, using a voltage sensor and a current sensor to measure the output voltage and output current of the wind power generation module 31 and the solar power generation module 32 respectively, and using the output voltage and output current to calculate the power of the wind power generation module 31 and the solar power generation module 32 respectively;

[0138] S342, using a voltage sensor to measure the input voltage of the lithium battery 1 and the lithium battery 2;

[0139] S343, judging according to the input voltage of the lithium battery 1, if the input voltage is less than 12V, executing step S344, otherwise executing step S345;

[0140] S344, judging based on the power of the wind power generation module 31 and the power of the solar power generation module 32, if the power of the wind power generation module 31 is less than the power of the solar power generation module 32, executing step S347, otherwise executing step S346;

[0141] S345, the single chip microcomputer turns off the MOS tube Q3 and turns on Q4;

[0142] S346, the single chip microcomputer turns on the MOS tubes Q2 and Q3, and turns off Q1 and Q4;

[0143] S347, the single chip microcomputer turns on the MOS tubes Q1 and Q3, and turns off Q2 and Q4;

[0144] S348, judging according to the input voltage of the lithium battery 2, if the input voltage is less than 12V, executing step S349, otherwise executing step S350;

[0145] S349, judging according to the power of the wind power generation module 31 and the power of the solar power generation module 32, if the power of the wind power generation module 31 is less than the power of the solar power generation module 32, executing step S352, otherwise executing step S351;

[0146] S350, the single chip microcomputer turns off the MOS tube Q5 and turns on Q6;

[0147] S351, the single chip microcomputer turns on the MOS tubes Q2 and Q5, and turns off Q1 and Q6;

[0148] S352, the single chip microcomputer turns on the MOS tubes Q1 and Q5, and turns off Q2 and Q6;

[0149] S353, turning on the corresponding MOS tube to obtain different power supply modes, and supplying power to the system according to the power supply modes.

[0150] Specifically, the power supply mode includes a first mode, a second mode, a third mode, and a fourth mode;

[0151] In the first mode, when the MOS tubes Q1, Q3, and Q6 are turned on and Q2, Q4, and Q5 are turned off, the lithium battery 1 is charged by the solar power generation module 32, and the lithium battery 2 directly powers the system;

[0152] In the second mode, when the MOS tubes Q2, Q3, and Q6 are turned on and Q1, Q4, and Q5 are turned off, the lithium battery 2 is charged by the solar power generation module 32, and the lithium battery 1 directly powers the system;

[0153] In the third mode, when the MOS tubes Q2, Q4, and Q5 are turned on and Q1, Q3, and Q6 are turned off, the lithium battery 2 is charged by the wind power generation module 31, and the lithium battery 1 directly supplies power to the system;

[0154] In the fourth mode, when the MOS tubes Q1, Q4, Q5 are turned on and Q2, Q3, Q6 are turned off, the lithium battery 1 is charged through the wind power generation module 31, and the lithium battery 2 directly supplies power to the system.

[0155] The beneficial effects of the present invention are embodied in:

[0156] 1. The water-saving effect is obvious and water resources are fully utilized

[0157] By collecting soil temperature and humidity in real time through the environmental detection system, the system can accurately determine the timing of irrigation, so as to achieve the goal of timely irrigation, ensure the optimal water demand of plants, and effectively save water resources.

[0158] 2. Intelligent management, saving human resources

[0159] Through the collaborative cooperation between systems, the automated execution process of intelligent irrigation is realized, which effectively reduces the complexity and fault tolerance of manual operations and improves the irrigation efficiency of farmland and the growth quality of crops.

[0160] 3. Use of renewable energy to save energy

[0161] The wind-solar complementary power supply system realizes the complementary use of renewable energy wind energy and solar energy. For example, during the day, when wind energy is weak, solar energy can be used as a complementary auxiliary production capacity; at night, when there is no solar energy, wind energy can be used as a complementary auxiliary production capacity; in summer, the air volume expands due to high temperature, and the lower air density leads to smaller wind energy, but strong solar radiation and larger solar energy; in winter, the air volume shrinks due to low temperature, and the higher air density leads to stronger wind energy, but weak solar radiation and smaller solar energy. Therefore, the wind-solar complementary power supply system effectively utilizes the complementarity of the two, and realizes the rational allocation and efficient use of resources while saving energy.

[0162] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the scope of the claims and specification of the present invention.

Claims

1. An intelligent water-saving valve control system for intelligent irrigation, characterized in that: Including environmental detection system, valve control system, wind-solar complementary power supply system; The environmental detection system is used to collect soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, solar radiation intensity in real time, and transmit them to the valve control system; The valve control system is used to determine whether to control the opening or closing of the valve based on the soil temperature and humidity parameters to achieve irrigation; The wind-solar complementary power supply system is used to utilize renewable energy sources such as wind energy and solar energy to provide power for the entire system; The valve control system is also used to analyze and obtain weather conditions based on the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity.

2. According to claim 1, the intelligent water-saving valve control system for intelligent irrigation is characterized in that: The environmental detection system includes a soil temperature and humidity sensor, an air pressure sensor, a wind direction sensor, a raindrop sensor, a solar radiation sensor, and an NB-IOT wireless communication module; The soil temperature and humidity sensor is used to collect soil temperature and humidity parameters in real time; The air pressure sensor is used to collect the atmospheric pressure value in real time; The wind direction sensor is used to collect wind direction in real time; The raindrop sensor is used to collect rainfall in real time; The solar radiation sensor is used to collect solar radiation intensity in real time; The NB-IOT wireless communication module is used to transmit the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity to the valve control system through the NB-IOT communication protocol.

3. The intelligent water-saving valve control system for intelligent irrigation according to claim 1, characterized in that: The valve control system includes a judgment module, an execution module, and a weather prediction module; The judgment module is used to receive the soil temperature and humidity parameters transmitted by the environmental detection system, and to judge and analyze the soil temperature and humidity parameters to obtain a control instruction, and transmit the control instruction to the execution module; The execution module is used to receive and execute the control instruction, control the valve to open, and realize the irrigation operation; The weather forecast module is used to receive the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity transmitted by the environmental detection system, and analyze and process the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity to obtain weather conditions, and transmit the weather conditions to the judgment module.

4. The intelligent water-saving valve control system for intelligent irrigation according to claim 3, characterized in that: The judgment module includes a display screen and a central microcontroller; The display screen is used to receive and display the soil temperature and humidity parameters and the weather conditions, and transmit the soil temperature and humidity parameters to a central microcontroller; The central microcontroller is used to make judgments based on the soil temperature and humidity parameters, obtain control instructions, and transmit the control instructions to the execution module; The control instructions include a stop instruction, a circulation instruction, an irrigation instruction, and a stop instruction; The display screen is also used to set a threshold value and a time threshold value, and transmit the threshold value and the time threshold value to the central microcontroller; the threshold value includes a temperature threshold value and a humidity threshold value; the time threshold value is a time period during which watering is allowed; The central microcontroller is provided with a real-time clock RTC for obtaining the current time in real time.

5. The intelligent water-saving valve control system for intelligent irrigation according to claim 4, characterized in that: The central microcontroller is used specifically for: Receiving the threshold value and time threshold value set by the display screen, and the soil temperature and humidity parameters; Acquire the current time, and when the current time is within the time threshold, make a judgment based on the soil temperature and humidity parameters in combination with the threshold; When the soil temperature parameter is lower than the temperature threshold, it is determined that the current environment is too low in temperature to be suitable for irrigation, and the termination instruction is generated and transmitted to the execution module; When the soil temperature parameter is higher than the temperature threshold, it is determined that the current environment is too hot and the irrigation frequency needs to be increased, and the cycle instruction is generated and transmitted to the execution module; When the soil moisture parameter is lower than the moisture threshold, it is determined that the soil is too dry and needs irrigation, and the irrigation instruction is generated and transmitted to the execution module; When the soil moisture parameter is higher than the moisture threshold, it is determined that the soil is too moist and irrigation needs to be stopped, and the stop instruction is generated and transmitted to the execution module.

6. The intelligent water-saving valve control system for intelligent irrigation according to claim 3, characterized in that: The execution module includes an optocoupler isolation relay, an electric valve, and a water pump; The optical coupling isolation relay is used to receive the control instruction, and amplify the signal of the control instruction and transmit it to the electric valve; The electric valve is used to execute the control instruction to control the opening or closing of the electric valve; The water pump is used to push water through the pipeline when the electric valve is opened, and release the water to the roots of the plants through the pre-arranged sprinkler heads to irrigate the plants.

7. The intelligent water-saving valve control system for intelligent irrigation according to claim 3, characterized in that: The weather prediction module includes a data processing unit, a feature extraction unit, a model training unit, and a sending unit; The data processing unit is used to receive the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity, and use a Kalman filter to smooth and correct the soil temperature and humidity parameters, atmospheric pressure value, wind direction, rainfall, and solar radiation intensity to obtain a time series data set; The feature extraction unit is used to extract change features from the time series data set; After normalizing the features, a feature data set is obtained; the change features include soil temperature and humidity change features, air pressure change features, wind direction change features, rainfall change features and solar radiation intensity change features; The model training unit is used to learn and train the feature data set based on the neural network model, so as to establish a complex relationship between soil temperature and humidity, atmospheric pressure, wind direction, rainfall, and solar radiation intensity; based on the complex relationship, predict future weather conditions to obtain weather conditions; the weather conditions include sunny days, rainy days, cloudy days, strong winds, and haze; The sending unit is used to wirelessly transmit the weather conditions to the judgment module.

8. The intelligent water-saving valve control system for intelligent irrigation according to claim 1, characterized in that: The wind-solar complementary power supply system includes a wind power generation module, a solar power generation module, an energy storage module, and a control module; The wind power generation module is used to convert wind energy into electric energy for supplying the system; The solar power generation module is used to convert solar energy into electrical energy for supplying the system through the photovoltaic effect; The energy storage module is used to store the electric energy from the wind power generation module and the solar power generation module; The control module is used to manage and distribute power to supply the power required by the entire system; The wind power generation module includes a wind generator; The wind turbine is used to convert wind energy into electrical energy, which is distributed through the control module and finally transmitted to the energy storage module.

9. The intelligent water-saving valve control system for intelligent irrigation according to claim 8, characterized in that: The solar power generation module includes a solar panel and an automatic light tracking device; The solar panel is used to convert solar energy into electrical energy through the photovoltaic effect, and distribute it through the control module and finally transmit it to the energy storage module; The automatic light-chasing device is installed on the solar panel and is used to ensure that the solar panel is always in the best light-receiving state when there is light.

10. The intelligent water-saving valve control system for intelligent irrigation according to claim 8, characterized in that: The energy storage module includes lithium battery 1 and lithium battery 2; the control module includes a voltage sensor, a current sensor, a single-chip microcomputer, and an electronic switch; The voltage sensor is used to measure the output voltage of the wind power generation module and the solar power generation module, and to measure the input voltage of the lithium battery 1 and the lithium battery 2; The current sensor is used to measure the output current of the wind power generation module and the solar power generation module; The single chip computer is used to calculate the power of the wind power generation module and the solar power generation module respectively based on the output voltage and the output current, and then judge and control the electronic switch to be turned off or on based on the input voltage and the power, and obtain a corresponding power supply mode, and use the power supply mode to power the system; the power supply mode includes a first mode, a second mode, a third mode, and a fourth mode; The electronic switch uses MOS tubes for control switching, and is used to achieve power switching between the wind power generation module and the solar power generation module; the MOS tubes include Q1, Q2, Q3, Q4, Q5, and Q6.

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