A spray device
By integrating multiple sensors and microprocessors, the spraying device overcomes the shortcomings of traditional spraying devices in terms of control precision, environmental adaptability, and energy efficiency, achieving precise spraying and green energy power supply, thus meeting the needs of different agricultural scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN ACAD OF AGRI SCI SERICULTURE INST
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional spraying devices are inadequate in terms of control precision, environmental adaptability, and energy efficiency. They cannot sense environmental parameters and crop needs in real time, resulting in a mismatch between the spray volume and the actual situation. Furthermore, their power supply methods do not conform to the development trend of green agriculture.
It employs a spray unit, spray control center, and communication device, integrating multiple sensors and microprocessors to achieve precise environmental perception and intelligent decision-making. Combined with a solar power module, it provides high-precision data acquisition and automated spray control.
It achieves precise spray control in different scenarios, improves the environmental adaptability and energy efficiency of the spraying device, and meets the needs of green agriculture.
Smart Images
Figure CN224308682U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the agricultural field, specifically a spraying device. Background Technology
[0002] In agriculture, horticulture, and environmental control, spraying devices are key equipment for precision pesticide application, irrigation, and environmental regulation. Their technological evolution has consistently revolved around three core objectives: improving control accuracy, environmental adaptability, and operational efficiency. Traditional spraying devices mostly employ mechanical or simple electronic controls, which have the following significant drawbacks:
[0003] Insufficient control precision: Traditional devices rely on manual adjustment or preset program control, which cannot sense environmental parameters (such as temperature, humidity, wind speed, and light) and crop needs (such as soil moisture) in real time. This results in a mismatch between the spray volume and coverage area and the actual situation, leading to pesticide waste or reduced effectiveness.
[0004] Poor environmental adaptability: Lacking the ability to fuse multiple environmental parameters, it is difficult to guarantee the uniformity and targeting of spraying under complex meteorological conditions (such as sudden wind speed and strong light) or terrain changes (such as slopes).
[0005] Low energy efficiency: Most devices rely on mains power or fuel generators for power, which is costly to deploy in remote farmland or outdoor settings and does not conform to the trend of green agriculture development. Utility Model Content
[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a spraying device, including a spraying unit, a spraying control center and a communication device; the spraying unit and the communication device are respectively connected to the spraying control center.
[0007] The spray unit includes a nozzle module, a microprocessor module, a positioning device, a data acquisition module, a communication module, and a power supply module; the nozzle module is connected to the spray control center, and the positioning device, data acquisition module, communication module, power supply module, and nozzle module are respectively connected to the microprocessor module; the communication module is communicatively connected to the communication device.
[0008] Preferably, the spray control center includes a water storage tank, a water storage monitoring device, a data processor, a solenoid valve, a display module, a power supply module, a data communication module, and a data storage module;
[0009] The solenoid valve is installed on the water storage tank and is connected to the nozzle module; the water storage monitoring device is installed inside the water storage tank; the water storage monitoring device, solenoid valve, display module, power module, data communication module, and data storage module are respectively connected to the data processing module.
[0010] Preferably, the data acquisition module includes an ambient temperature acquisition module, an ambient humidity acquisition module, an ambient wind speed acquisition module, and a light intensity acquisition module; the ambient temperature acquisition module, the ambient humidity acquisition module, the ambient wind speed acquisition module, and the light intensity acquisition module are respectively connected to the microprocessor module.
[0011] Preferably, the positioning device includes a BeiDou positioning module, which is connected to the microprocessor module.
[0012] Preferably, the power supply module includes a power interface, a solar module, an energy storage module, and a power management module; the power interface, solar module, and energy storage module are respectively connected to the power management module; the power management module is connected to the microprocessor module.
[0013] Preferably, the water storage monitoring device includes multiple water level sensors, each of which is connected to the data processor.
[0014] Preferably, the system also includes a soil data acquisition device, which is connected to the data processor.
[0015] Preferably, the soil data acquisition device includes a soil moisture collector; the soil moisture collector is connected to the data processor.
[0016] The beneficial effects of this invention are as follows: In terms of precise environmental perception, each data acquisition module adopts high-precision sensors, which can stably collect data. The microprocessor and data processor quickly process and analyze the data, providing accurate decision-making basis for spray control and meeting the needs of different scenarios. For example, when the ambient temperature is high, the humidity is low, and the soil is short of water, the device automatically increases the spray volume; when the ambient humidity is high or the wind speed is high, the spray angle and flow rate are adjusted. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the principle of a spraying device;
[0018] Figure 2 This is a schematic diagram of the spray unit. Detailed Implementation
[0019] The technical solution of this utility model is described in further detail below with reference to the accompanying drawings, but the scope of protection of this utility model is not limited to the following description.
[0020] The features and performance of this utility model will be further described in detail below with reference to embodiments.
[0021] like Figure 1As shown, a spraying device includes a spraying unit, a spraying control center, and a communication device; the spraying unit and the communication device are respectively connected to the spraying control center.
[0022] like Figure 2 As shown, the spray unit includes a nozzle module, a microprocessor module, a positioning device, a data acquisition module, a communication module, and a power supply module; the nozzle module is connected to the spray control center, and the positioning device, data acquisition module, communication module, power supply module, and nozzle module are respectively connected to the microprocessor module; the communication module is communicatively connected to the communication device.
[0023] The spray control center includes a water storage tank, a water storage monitoring device, a data processor, a solenoid valve, a display module, a power supply module, a data communication module, and a data storage module.
[0024] The solenoid valve is installed on the water storage tank and is connected to the nozzle module; the water storage monitoring device is installed inside the water storage tank; the water storage monitoring device, solenoid valve, display module, power module, data communication module, and data storage module are respectively connected to the data processing module.
[0025] The data acquisition module includes an ambient temperature acquisition module, an ambient humidity acquisition module, an ambient wind speed acquisition module, and a light intensity acquisition module; the ambient temperature acquisition module, the ambient humidity acquisition module, the ambient wind speed acquisition module, and the light intensity acquisition module are respectively connected to the microprocessor module.
[0026] The positioning device includes a BeiDou positioning module, which is connected to the microprocessor module.
[0027] The power supply module includes a power interface, a solar module, an energy storage module, and a power management module; the power interface, solar module, and energy storage module are respectively connected to the power management module; the power management module is connected to the microprocessor module.
[0028] The water storage monitoring device includes multiple water level sensors, each of which is connected to the data processor.
[0029] It also includes a soil data acquisition device, which is connected to the data processor.
[0030] The soil data acquisition device includes a soil moisture collector; the soil moisture collector is connected to the data processor.
[0031] Specifically, the spray unit uses a VSN-12 variable orifice nozzle module. Flow rate is adjusted via a DF-20 solenoid valve.
[0032] The microprocessor module model is STM32F407ZGT6, which controls the nozzle, communication, and power supply.
[0033] The positioning device is a BD-3GNSS module, which provides centimeter-level positioning accuracy and supports NMEA-0183 protocol output.
[0034] The data acquisition module uses an FZ600-C4-S01 temperature and humidity sensor to acquire ambient temperature and humidity. An AWM5104 hot-wire anemometer is used to acquire ambient wind speed. An FZ600-C4-S08 light sensor is used to acquire light intensity.
[0035] The communication module used is the SIM7600G-H 4G / NB-IoT / LoRa multi-mode module, enabling bidirectional communication with the spray control center.
[0036] The power supply module's power interface is for AC220V input. The solar module uses SHW48300 solar panels. The energy storage module uses an LFP-48V200Ah lithium iron phosphate battery pack. The power management module uses an MPPT controller, model MPPT-48V100A.
[0037] The water level sensor in the water storage monitoring device is an HC-SR04 ultrasonic sensor, used for real-time monitoring of the water level in the storage tank.
[0038] The data processor is an STM32H743ZIT6. The solenoid valve is a DF-20. The display module is a 7-inch TFT-LCD touchscreen. The power supply module is a DC48V / 5A switching power supply. The data communication module is an RS485 to Ethernet module.
[0039] The soil moisture collector in the soil data acquisition device is model ET-100 soil moisture monitor.
[0040] Example 1: Intelligent Spraying System for Facility Agriculture Greenhouses
[0041] This embodiment is applied to greenhouse agriculture in northern regions (such as tomato planting bases). It integrates multi-source sensors and intelligent decision-making algorithms to achieve integrated precision management of water, fertilizer and pesticides, taking into account the characteristics of greenhouse environment, large temperature and humidity fluctuations, and high requirements for the accuracy of crop water and fertilizer requirements.
[0042] System Configuration
[0043] Spray unit:
[0044] Nozzle module: VSN-12 variable orifice nozzle (0.1-1.5mm orifice adjustment), equipped with a solenoid valve (DF-20, pressure resistant 1.6MPa), which realizes continuous flow rate adjustment from 0-5L / min through PWM signal.
[0045] Sensor group:
[0046] Environment: FZ600-C4-S01 temperature and humidity sensor (±0.3℃ accuracy), AWM5104 hot-wire anemometer (±0.2m / s accuracy), light intensity sensor (±5%).
[0047] Soil: ET-100 soil moisture monitor (depth 10-40cm, volumetric water content ±1% accuracy), combined with EC-5 conductivity sensor (±5% accuracy) to monitor salt accumulation.
[0048] Positioning and Communication: The Beidou BD-3 module (centimeter-level positioning) and the SIM7600G-H 4G module (supports MQTT protocol) transmit data to the local server and cloud platform.
[0049] Spray Control Center:
[0050] Water storage tank: 200L stainless steel water tank, with 3 built-in HC-SR04 ultrasonic water level sensors (redundant design, accuracy ±2mm).
[0051] Data processor: STM32H743ZIT6 (dual-core ARM Cortex-M7 / M4, 480MHz), running decision tree algorithm to dynamically adjust the water, fertilizer and pesticide ratio based on temperature, humidity, light, and soil EC value.
[0052] Display module: 7-inch touch screen (TFT-LCD, 800×480 resolution), displaying real-time environmental parameters, spraying strategy and fault alarms (such as EC value exceeding limit, low water level).
[0053] Energy System:
[0054] Solar module: SHW48300 solar panel (300W, conversion efficiency 22%), paired with MPPT-48V100A controller, energy storage uses LFP-48V200Ah lithium iron phosphate battery pack, achieving system self-sufficiency under an average of 8 hours of sunlight per day.
[0055] Example 2: Variable Variable Spray System for Field Crops
[0056] This embodiment is applied to a rice-growing area in southern China (500 mu of contiguous farmland). In response to the complex field environment, large wind speed variations, and strong spatiotemporal heterogeneity of pests and diseases, it integrates Beidou positioning, multispectral imaging, and variable spraying technology to achieve precise application of pesticides based on a "prescription map".
[0057] System Configuration
[0058] Spray unit:
[0059] Nozzle module: VSN-12 variable orifice nozzle (0.3-3.0mm orifice adjustment), equipped with a solenoid valve (DF-20), which realizes dynamic adjustment of flow rate from 0-10L / min through PWM signal.
[0060] Sensor group:
[0061] Environment: FZ600-C4-S01 temperature and humidity sensor, AWM5104 anemometer, PAR sensor (±3% accuracy, range 0-2500μmol / m) 2 ·s).
[0062] Crops: Multispectral camera (RedEdge-MX, 5 bands, spatial resolution 3.2cm) was used to generate NDVI vegetation index prescription maps by drone field surveys.
[0063] Positioning and communication: Beidou BD-3 module (centimeter-level positioning) + RTK base station (accuracy ±2.5cm), communication uses LoRa module (transmission distance >5km), supports offline operation.
[0064] Spray Control Center:
[0065] Water storage tank: 1000L polyethylene water tank with 5 built-in HC-SR04 water level sensors (redundant design) combined with a pressure sensor (±0.1%FS accuracy) to monitor water pressure.
[0066] Data processor: STM32H743ZIT6, running SVM classification algorithm, classifying the plot into 5 levels of pesticide application intensity (0-100% spray volume) based on NDVI value.
[0067] Display module: 10-inch industrial tablet (Windows system, supports GIS map display), which displays the operation path, prescription map overlay effect and spray volume distribution in real time.
[0068] Energy System:
[0069] Solar modules: 2×SHW48300 solar panels (600W), paired with MPPT-48V200A controller, energy storage uses LFP-48V400Ah battery pack, supporting continuous operation under an average of 5 hours of sunshine per day.
[0070] Example 3: Intelligent Dust Suppression Spray System for Urban Green Spaces
[0071] This embodiment is applied to the green belt along the road in a heavy industrial city in northern China (total length 20km). It addresses the problems of severe PM2.5 / PM10 pollution, low efficiency of traditional sprinkler trucks, and large waste of water resources by integrating air quality monitoring, Beidou positioning, and intelligent spraying technology to achieve on-demand dust suppression.
[0072] System Configuration
[0073] Spray unit:
[0074] Nozzle module: VSN-12 variable orifice nozzle (0.5-2.0mm orifice adjustment), equipped with a solenoid valve (DF-20), which realizes pulse spray with a flow rate of 0-8L / min through PWM signal.
[0075] Sensor group:
[0076] Environment: PM2.5 / PM10 laser sensor (accuracy ±5μg / m³) 3 Measurement range 0-1000μg / m 3 ), FZ600-C4-S01 temperature and humidity sensor, AWM5104 anemometer.
[0077] Positioning: Beidou BD-3 module (centimeter-level positioning) + electronic fence (set green belt boundary ±10cm).
[0078] Communication module: SIM7600G-H 4G module (supports NB-IoT dual mode), data is uploaded to the municipal environmental protection platform.
[0079] Spray Control Center:
[0080] Water storage tank: 800L stainless steel water tank, with 4 built-in HC-SR04 water level sensors, combined with a liquid level float switch (redundant design).
[0081] Data processor: STM32H743ZIT6, running a fuzzy PID algorithm to dynamically adjust the spray frequency (1-30 times / minute) according to PM2.5 concentration.
[0082] Display module: Outdoor LED screen (P10 specification, real-time display of PM2.5 value, spray status and system fault codes).
[0083] Energy System:
[0084] Solar module: SHW48300 solar panel (300W) + wind turbine (rated power 500W), equipped with MPPT-48V150A controller, energy storage uses LFP-48V300Ah battery pack, supporting continuous operation under an average of 4 hours of sunshine per day.
Claims
1. A spraying device, characterized in that, It includes a spray unit, a spray control center, and a communication device; the spray unit and the communication device are respectively connected to the spray control center; The spray unit includes a nozzle module, a microprocessor module, a positioning device, a data acquisition module, a communication module, and a power supply module; the nozzle module is connected to the spray control center, and the positioning device, data acquisition module, communication module, power supply module, and nozzle module are respectively connected to the microprocessor module; the communication module is communicatively connected to the communication device.
2. The spraying device according to claim 1, characterized in that, The spray control center includes a water storage tank, a water storage monitoring device, a data processor, a solenoid valve, a display module, a power supply module, a data communication module, and a data storage module. The solenoid valve is installed on the water storage tank and is connected to the nozzle module; the water storage monitoring device is installed inside the water storage tank; the water storage monitoring device, solenoid valve, display module, power module, data communication module, and data storage module are respectively connected to the microprocessor module.
3. A spraying device according to claim 1, characterized in that, The data acquisition module includes an ambient temperature acquisition module, an ambient humidity acquisition module, an ambient wind speed acquisition module, and a light intensity acquisition module; the ambient temperature acquisition module, the ambient humidity acquisition module, the ambient wind speed acquisition module, and the light intensity acquisition module are respectively connected to the microprocessor module.
4. A spraying device according to claim 1, characterized in that, The positioning device includes a BeiDou positioning module, which is connected to the microprocessor module.
5. A spraying device according to claim 1, characterized in that, The power supply module includes a power interface, a solar module, an energy storage module, and a power management module; the power interface, solar module, and energy storage module are respectively connected to the power management module; the power management module is connected to the microprocessor module.
6. A spraying device according to claim 2, characterized in that, The water storage monitoring device includes multiple water level sensors, each of which is connected to the data processor.
7. A spraying device according to claim 2, characterized in that, It also includes a soil data acquisition device, which is connected to the data processor.
8. A spraying device according to claim 7, characterized in that, The soil data acquisition device includes a soil moisture collector; the soil moisture collector is connected to the data processor.