Urban greening photovoltaic irrigation device based on Internet of Things

Abstract

The utility model discloses an urban landscaping photovoltaic irrigation device based on the Internet of Things, which comprises an electric control unit, a shell and a fixing rod, and the electric control unit is arranged in the shell; the back of the shell is connected with a fixing rod and fixed to a to-be-irrigated area through the fixing rod. The electric control unit comprises a power supply module, a main control module, and an environment sensing module, an irrigation module, a display module, a threshold alarm module and a wireless communication module which are respectively in communication connection with the main control module; and the power supply module supplies power to other modules of the electric control unit. Automatic irrigation is achieved through the soil temperature and humidity and rainwater detection module. Manpower is liberated, solar energy resources are fully utilized, multiple working modes can be set, and operation and application are flexible. The device can be widely applied to cities and can also be applied to urban families, farmlands and the like. According to the utility model, the expandability is good, subsequent improvement and other personalized function customization can be carried out on the basis of the design, and the application range and the automation degree of the product are improved.

Description

Technical Field

[0001] The utility model relates to an urban greening photovoltaic irrigation device based on the Internet of Things. Background Art

[0002] With the acceleration of urban construction, increasing a certain amount of greening area in the city can greatly improve the urban ecological quality and play an important role in dust reduction, noise reduction, water conservation, climate regulation, etc. At present, most of the urban maintenance methods adopt traditional urban irrigation methods such as border irrigation, furrow irrigation, flooding irrigation, surface irrigation, manual hose irrigation, water truck spraying, etc. Moreover, in hot weather, the frequency and amount of manual irrigation both increase, resulting in an increase in maintenance costs. Due to the uneven distribution of water resources in various regions and the extreme shortage in some regions, the existing irrigation methods are extensive, causing serious waste of water resources. There is an urgent need to reduce the urban plant maintenance cost and replace the traditional urban irrigation device. Summary of the Invention

[0003] In order to solve the technical problems of large waste of urban irrigation water resources and high labor cost at present, the utility model provides an urban greening photovoltaic irrigation device based on the Internet of Things, which can effectively reduce the labor cost and save water resources.

[0004] In order to achieve the above technical purpose, the technical solution of the utility model is as follows.

[0005] An urban greening photovoltaic irrigation device based on the Internet of Things includes an electric control unit, a housing and a fixing rod. The electric control unit is arranged inside the housing; the bottom of the housing is connected to the fixing rod and fixed to the area to be irrigated through the fixing rod.

[0006] The electric control unit includes a power supply module, a main control module, and an environment sensing module, an irrigation module, a display module, a threshold alarm module, a key module and a wireless communication module that are respectively communicatively connected to the main control module; the power supply module provides power for other modules in the electric control unit.

[0007] The power supply module includes a photovoltaic panel, a storage battery and a power control circuit. The photovoltaic panel is arranged on the surface of the housing, and the output end is connected to the storage battery through the power control circuit to charge the storage battery; the output end of the storage battery is connected to other modules of the electric control unit through the power control circuit to provide power.

[0008] The environment sensing module collects external environmental state information and sends it to the main control module; the irrigation module is connected to an external water source and transports the external water source to the greening area to be irrigated; the display module and the threshold alarm module respectively receive control signals from the main control module to display information and give an alarm; the key module outputs a control signal to the main control module after being pressed to achieve manual control; the wireless communication module realizes communication between the main control module and a remote control end through a wireless network.

[0009] A kind of urban greening photovoltaic irrigation device based on the Internet of Things, the main control module includes a single-chip microcomputer, a reset circuit and a clock circuit. The single-chip microcomputer is an STM32 single-chip microcomputer chip, and the reset circuit and the clock circuit are respectively electrically connected to the STM32 single-chip microcomputer chip.

[0010] A kind of urban greening photovoltaic irrigation device based on the Internet of Things, the environmental sensing module includes a soil temperature detection module, a soil humidity detection module and a rainwater induction module. The soil humidity detection module, the soil temperature detection module and the rainwater induction module are respectively communicatively connected to the main control module.

[0011] A kind of urban greening photovoltaic irrigation device based on the Internet of Things, the soil temperature detection module is a DS18B20 sensor connected with a waterproof probe. The DS18B20 sensor is arranged in the shell and connected to the waterproof probe through a data line to detect the soil temperature by inserting the waterproof probe into the external soil.

[0012] The soil humidity detection module is a YL-69 capacitive soil humidity sensor connected with two metal sheets. The YL-69 capacitive soil humidity sensor is arranged in the shell and connected to the two metal sheets through two data lines respectively to detect the soil humidity by inserting the two metal sheets into the external soil.

[0013] The rainwater induction module includes two metal probes arranged on the surface of the shell at a certain distance from each other, and an operational amplifier circuit arranged in the shell. The non-inverting input terminal of the LM393 operational amplifier in the operational amplifier circuit is connected to the power supply through a step-down resistor in the operational amplifier circuit. One of the two metal probes is connected to the inverting input terminal of the LM393 operational amplifier, and the other is connected to the power supply. Thus, when it rains, the two metal probes are connected to each other through rainwater so that the power supply is directly connected to the inverting input terminal of the LM393 operational amplifier, so that the operational amplifier circuit outputs a high level when it does not rain and outputs a low level when it rains.

[0014] A kind of urban greening photovoltaic irrigation device based on the Internet of Things, the irrigation module includes a water pump and a water pump control circuit. The water pump is a small-power direct-current water pump. The small-power direct-current water pump is installed in the shell, and the water inlet is connected to an external water source through a pipeline, and the water outlet is connected to the greening area through a pipeline. The water pump control circuit includes an irrigation module triode with the base connected to the main control module, the emitter connected to the power supply, and the collector connected to the power supply end of the small-power direct-current water pump. Thus, the main control module controls the on-off of the irrigation module triode by outputting high and low levels to make the small-power direct-current water pump run or stop.

[0015] For the described urban greening photovoltaic irrigation device based on the Internet of Things, the display module includes an LCD1602 display screen, and the LCD1602 display screen is communicatively connected to the main control module.

[0016] For the described urban greening photovoltaic irrigation device based on the Internet of Things, the threshold alarm module includes an alarm module triode and a light-emitting diode. The base of the alarm module triode is connected to the main control module, the emitter is connected to the power supply, and the collector is connected to the light-emitting diode. Thus, the main control module controls the on-off of the alarm module triode by outputting high and low levels to make the light-emitting diode light up or go out.

[0017] For the described urban greening photovoltaic irrigation device based on the Internet of Things, the key module includes 4 independent keys. The 4 independent keys are respectively arranged on the surface of the housing and are connected to 4 IO ports of the main control module through wires, so as to independently send signals to the main control module when pressed respectively to achieve preset functions.

[0018] For the described urban greening photovoltaic irrigation device based on the Internet of Things, the wireless communication module is a WiFi communication module. The WiFi communication module communicates and connects with a mobile phone or a tablet computer as a remote control end through a wireless network WiFi signal, so that the remote control end and the main control module achieve wireless communication.

[0019] For the described urban greening photovoltaic irrigation device based on the Internet of Things, the housing is a hollow rectangular body. A front region and a rear region separated by a partition are provided inside the housing, and the central part of the rear region is further separated into a left region and a right region by a partition. An environment sensing module is provided in the front region, and a drawer-like structure that can be pulled out and retracted is provided on the side wall of the front region for easy access to the environment sensing module; a storage battery, a power control circuit, a main control module, and a wireless communication module are provided in the left region; an irrigation module is provided in the right region, and a water pump outlet and an inlet of the irrigation module are provided on the side wall of the right region; a display module, a threshold alarm module, a key module, and a photovoltaic panel are provided on the top surface of the housing; the bottom is connected to the top of a fixed rod through a rotating shaft to achieve a 90-degree rotary folding.

[0020] The technical effect of the present utility model is that the present utility model realizes automatic irrigation by using a soil temperature and humidity and rain detection module. It liberates manpower, makes full use of solar energy resources, and can set multiple working modes, with flexible operation and application. The device can be widely applied to cities, and can also be applied to urban families, farmlands, etc. The present utility model has good scalability, and subsequent improvements and other personalized function customizations can be carried out on the basis of this design to improve the applicability breadth and automation degree of the product. Description of the Drawings

[0021] Figure 1 This is the structural schematic diagram of the present utility model.

[0022] Figure 2 This is the schematic diagram after the fixed rod of the present utility model rotates and folds.

[0023] Figure 3 This is the schematic diagram of the electronic control unit module of the present utility model.

[0024] Figure 4 This is the circuit diagram of the soil temperature detection module of the present utility model.

[0025] Figure 5 This is the circuit diagram of the rainwater sensing module of the present utility model.

[0026] Figure 6 This is the circuit diagram of the irrigation module of the present utility model.

[0027] Figure 7 This is the circuit diagram of the threshold alarm module of the present utility model.

[0028] Figure 8 This is the circuit diagram of the display module of the present utility model.

[0029] Among them, 1 are two metal induction probes of the rainwater sensing module; 2 is the LCD1602 display screen; 3 is the photovoltaic panel; 4 are the water inlet and outlet of the water pump of the irrigation module; 5 are 4 independent buttons of the button module; 6 is the drawer-like structure in the front area; 7 is the fixed rod; 8 is the rotating shaft connecting the fixed rod, and 9 is the light-emitting diode of the threshold alarm module. Detailed implementation manners

[0030] In this embodiment, to meet the flexibility requirements of users, in addition to the automatic irrigation function, the entire device also has timing and manual irrigation functions. To facilitate remote control by mobile phone, the remote control function is extended. Automatic irrigation mainly adopts the method of detecting soil humidity and soil temperature. When the system detects that the actual soil humidity is lower than the set minimum value or the detected soil temperature is higher than the set maximum temperature, the threshold alarm module is used to give an alarm and irrigate the plants. When the system detects that the soil humidity is higher than the set maximum value or the detected soil temperature is lower than the set minimum temperature value, the irrigation stops. Since there are many varieties of urban greening plants, and the requirements for soil humidity and temperature under the suitable growth conditions of different plants are also different, considering the above situation, this embodiment can also set the soil humidity and temperature ranges according to different plants during implementation. At the same time, this embodiment has a rainwater sensing function. When it rains, the irrigation stops and automatically restarts after the rain stops and the weather is dry. The power supply of this embodiment uses solar power supply, and after storing electrical energy through the storage battery, it can also be used normally at night or on rainy days.

[0031] See Figure 1, in this embodiment, the overall shape design is achieved by integrating all the hardware. To facilitate insertion into the soil, the bottom of the housing is connected to the top of the fixed rod through a rotating shaft to achieve a 90-degree rotational folding. The rotating shaft can be realized by the cooperation of bolts and nuts. After the bolts and nuts are tightened, the inclination angle of the housing can be fixed. The photovoltaic module, the LCD1602 display screen, the four independent buttons of the button module, and the two metal probes of the rain sensing module in this embodiment are arranged on the surface of the housing. Inside the housing, there are a front area and a rear area separated by a partition, and the central part of the rear area is further divided into a left area and a right area by a partition. An environmental sensing module is provided in the front area, and a drawer-like structure that can be pulled out and retracted is provided on the side wall of the front area for easy access to the environmental sensing module; a storage battery, a power control circuit, a main control module, and a wireless communication module are arranged in the left area; an irrigation module is arranged in the right area, and a water pump outlet and an inlet of the irrigation module are provided on the side wall of the right area.

[0032] The electric control unit in this embodiment includes a power module, a main control module, and an environmental sensing module, an irrigation module, a display module, a threshold alarm module, a button module, and a wireless communication module that are respectively communicatively connected to the main control module; the power module provides power for other modules in the electric control unit. The system composition block diagram is shown in Figure 3 as follows.

[0033] The power module supplies power to all modules except the "setting button module". There are three types of sensors in the whole system, namely a soil humidity sensor, a soil temperature sensor, and a rain sensing sensor. Each type of sensor detection module uploads the detection information to the STM32 main control module. The main control module combines the values set by the setting buttons, and based on the detection results, determines whether to start the irrigation module for irrigation and the threshold alarm module for alarm. At the same time, the soil humidity and temperature detection status data are displayed through the display module.

[0034] The setting button module in this embodiment can realize the switching settings of four modes: automatic / manual / timing / remote control. The setting of the threshold range data of soil humidity / soil temperature; the setting of the timing on / off time. When set to the automatic mode, the system automatically judges whether to alarm and irrigate according to the real-time detected data of various sensors. When set to the manual state, the button is used to start and stop irrigation. When set to the timing state, irrigation is started when the time reaches the predetermined opening time and stopped when the time reaches the predetermined closing time. When set to the remote control module, the mobile phone can remotely view the sensor data and realize the functions of mobile phone timing, threshold change, and instant start / stop.

[0035] The display module in this embodiment can display the real-time detection data of soil humidity / soil temperature, the set threshold range data of soil humidity / soil temperature, the working state mode, the time, and the set timing switch time.

[0036] The core module of this embodiment is the single-chip microcomputer main control module. The main control module selects the STM32F103C8T6 single-chip microcomputer of STMicroelectronics, which is the most widely used. The working voltage of this type of single-chip microcomputer is 2V - 3.6V. The working temperature range is from -40 to 85 degrees. The chip has 48 pins and adopts the LQFP package [6 - 7]. The minimum system for the main control module to work consists of a reset circuit, a clock circuit and the chip. The reset circuit is composed of a 10KΩ resistor and a 0.1uF capacitor in series, with a button connected in parallel with the capacitor. The clock circuit is selected to connect two external crystal oscillators, one is a high-speed external clock crystal oscillator of 8MHz, and the other is a low-speed external clock crystal oscillator of 32.768kHz.

[0037] In this embodiment, the soil humidity detection module, the soil temperature detection module, and the rain sensor module are all components of the sensor detection module.

[0038] Among them, the soil humidity detection module serves as the instruction source for automatic irrigation judgment. This module is mainly composed of a soil humidity sensor. Considering the product cost, the soil humidity sensor in this embodiment selects the widely used and cost-effective YL-69 capacitive soil humidity sensor. The working voltage range of this soil sensor is 3.3V - 5V. When in use, two metal plates are inserted into the soil. It is equivalent to a tiny capacitor during measurement, and its capacitance value will change with the change of soil humidity. This sensor has two connection pins. When in use, one pin is connected to a 10kΩ resistor and the power supply to output the analog signal AO. The other pin is grounded, and the AO signal is connected to the ADC port of the STM32 single-chip microcomputer for ADC conversion to obtain accurate soil humidity data.

[0039] See Figure 4 In this embodiment, the soil temperature detection module is mainly composed of a temperature sensor. When this sensor detects, it needs to be in direct contact with the soil, and the soil contains moisture. It is more suitable to select a waterproof probe type temperature sensor. Finally, the product determines to select the widely used waterproof probe type DS18B20 sensor. This sensor is encapsulated in a stainless steel tube, with a cable and has three-proof functions (waterproof / moisture-proof / anti-rust), can conveniently detect humid environments, the temperature sensing range is -55℃~+125℃, the detection accuracy can reach ±0.5℃, it integrates a 12-bit ADC inside, and the working voltage range is 3.0V - 5.5V. The cable output lead of this sensor has three wires, which are the power supply wire, the data wire and the ground wire respectively. Since the sensor outputs a digital signal, its data wire is connected to the STM32 single-chip microcomputer through a 2kΩ pull-up resistor.

[0040] To prevent the system from irrigating during rain, in this embodiment, a rain sensor module is used to sense rain. When it rains, irrigation is automatically shut off, and it automatically restarts after the rain stops and the rainwater dries. Considering simplified design and cost, two simple probes are used to replace the traditional rain sensor to achieve the rain detection function. The circuit diagram of this module is as shown in Figure 5 Figure [0000096]. By using the LM393 operational amplifier as a comparator, the metal probes are installed 2 cm apart. When it is not raining, the two metal probes are separated by a certain distance, and there is no voltage at the inverting input terminal of the operational amplifier, so a high level is output. When it rains, since rainwater is a conductive medium, electrical connection is achieved between the two probes, making the voltage at the inverting input terminal of the operational amplifier higher than that at the non-inverting input terminal, and a low level is output. This module uses the output high and low levels to achieve the function of rain sensing.

[0041] There are no water faucets near plants in some cities. In this case, a water storage tank needs to be used to store water for irrigation. This solution is designed for the irrigation of small urban greening areas without water faucets. The irrigation module of this system consists of a water pump and a control circuit. Due to the small size of the greening area, to save energy consumption, a small-power direct-current water pump is selected. Here, a DC submersible pump with a working voltage of 5V, a flow rate of 150L per hour, a head of 1m, and a power of 1.2W is chosen. The control circuit consists of a 9012 triode, a 0.1uF capacitor, and a 2kΩ resistor. When irrigation needs to be started, the STM32 single-chip microcomputer outputs a low-level signal to the base of the triode, and the water pump is powered on to start irrigation. When irrigation needs to be shut off, the single-chip microcomputer outputs a high level, causing the triode to cut off and the water pump to lose power and stop irrigation. The circuit diagram of this module is shown in Figure 6 Figure [0000099].

[0042] The alarm phenomenon realized by the threshold alarm module in this embodiment is the flashing light alarm. When it is detected that the soil humidity and soil temperature do not meet the specified requirements, this module starts the light alarm. The specific circuit diagram is as shown in Figure 7 Figure [0000102]. When the alarm requirement is met, the STM32 single-chip microcomputer outputs a pulse signal, and the 9012 triode conducts and cuts off according to the pulse, and the LED flashes to start the alarm. When the detected data meets the standard, the STM32 single-chip microcomputer outputs a high level, the 9012 triode cuts off, and the LED does not work to stop the alarm.

[0043] Since the content that needs to be displayed in this utility model is not complex, considering cost, the display module in this embodiment selects the LCD1602 display screen with a relatively high market occupancy rate. This display screen can display two rows of data, and each row can display 16 characters, including letters, numbers, symbols, etc. This product selects a 1602 display screen with a working voltage of 3.3V. The circuit connection diagram of this module is shown in Figure 8 Figure [0000105].

[0044] The button module is set to use 4 independent buttons to implement function settings. The buttons are arranged from left to right. The first button S1 realizes the function of "adding" the set parameters, and the second button S2 realizes the function of "subtracting" the set parameters. The switch function of the water pump in manual mode, the third button S3 realizes the function of switching between automatic / manual / timing / remote control modes; selects the function when setting parameters. The fourth button S4 realizes the setting function. Each button is respectively connected to an IO port of the STM32 single-chip microcomputer.

[0045] Due to the large urban greening area, in order to facilitate remote control of irrigation, the mobile phone is used to interconnect data with this device. In this embodiment, the WIFI module is selected as the wireless communication module, and the relatively cost-effective ESP8266 WIFI module is selected as the bridge between the mobile phone and the main control chip to transmit and receive data. The power supply voltage of this module is 3.3V, and the RXD and TXD pins are connected to the serial interface of the main control chip STM32F103C8T6.

[0046] The power supply module of this embodiment consists of a photovoltaic module, a storage battery, and a power supply module control circuit (including a storage battery protection and a DC-DC conversion circuit). There are mainly 2 types of voltages required by the module. One is 3.3V voltage, which is supplied to the STM32 main control chip, the three major sensor modules, the threshold alarm module, and the wireless WIFI communication module. The other is 5V voltage, which is supplied to the irrigation module. When there is light, the photovoltaic module supplies power to the storage battery, and the storage battery directly supplies power to this system. The primary output voltage of the control circuit is 5V; the other voltage of 3.3V is obtained by DC-DC conversion of 5V using the AMS1117 chip. The storage battery selected for this system is a single 3.7V 3400mAh 18650 lithium battery with a long service life and large capacity. The parameters of the photovoltaic module are 6V / 6W. The control circuit can boost the 3.7V voltage to 5V voltage. The overcharge protection voltage of the storage battery is 4.3V, the over-discharge protection voltage is 2.4V, and the output current can reach 1A, which can meet the working current requirements of this system.

Claims

1. An urban greening photovoltaic irrigation device based on the Internet of Things, characterized in that, It includes an electronic control unit, a housing and a fixing rod. The electronic control unit is arranged inside the housing. The bottom of the housing is connected to the fixing rod and fixed to the area to be irrigated through the fixing rod. The electronic control unit includes a power module, a main control module, an environment sensing module, an irrigation module, a display module, a threshold alarm module, a key module and a wireless communication module which are respectively communicatively connected to the main control module. The power module provides power for other modules in the electronic control unit. The power module includes a photovoltaic panel, a storage battery and a power control circuit. The photovoltaic panel is arranged on the surface of the housing, and its output terminal is connected to the storage battery through the power control circuit to charge the storage battery. The output terminal of the storage battery is connected to other modules of the electronic control unit through the power control circuit to provide power. The environment sensing module collects external environment status information and sends it to the main control module. The irrigation module is connected to an external water source and transports the external water source to the greening area to be irrigated. The display module and the threshold alarm module respectively receive control signals from the main control module to display information and give an alarm. The key module outputs a control signal to the main control module after being pressed to achieve manual control. The wireless communication module communicates between the main control module and a remote control terminal through a wireless network.

2. The urban greening photovoltaic irrigation device based on the Internet of Things according to claim 1, characterized in that, The main control module includes a single-chip microcomputer, a reset circuit and a clock circuit. The single-chip microcomputer is an STM32 single-chip microcomputer chip. The reset circuit and the clock circuit are respectively electrically connected to the STM32 single-chip microcomputer chip.

3. The urban greening photovoltaic irrigation device based on the Internet of Things according to claim 1, characterized in that, The environment sensing module includes a soil temperature detection module, a soil humidity detection module and a rainwater sensing module. The soil humidity detection module, the soil temperature detection module and the rainwater sensing module are respectively communicatively connected to the main control module.

4. The urban greening photovoltaic irrigation device based on the Internet of Things according to claim 3, characterized in that, The soil temperature detection module is a DS18B20 sensor connected with a waterproof probe. The DS18B20 sensor is arranged inside the housing and connected to the waterproof probe through a data line to detect the soil temperature by inserting the waterproof probe into the external soil. The soil humidity detection module is a YL-69 capacitive soil humidity sensor connected with two metal plates. The YL-69 capacitive soil humidity sensor is arranged inside the housing and connected to the two metal plates through two data lines respectively to detect the soil humidity by inserting the two metal plates into the external soil. The rainwater sensing module includes two metal probes arranged on the surface of the housing at a certain distance from each other, and an operational amplifier circuit arranged inside the housing. The non-inverting input terminal of the LM393 operational amplifier in the operational amplifier circuit is connected to the power supply through a step-down resistor in the operational amplifier circuit. One of the two metal probes is connected to the inverting input terminal of the LM393 operational amplifier, and the other is connected to the power supply. Then, during rainfall, the two metal probes are connected to each other through rainwater so that the power supply is directly connected to the inverting input terminal of the LM393 operational amplifier, thereby making the operational amplifier circuit output a high level when there is no rainfall and output a low level when it is raining.

5. The urban greening photovoltaic irrigation device based on the Internet of Things according to claim 4, characterized in that, The described irrigation module includes a water pump and a water pump control circuit. The water pump is a low-power direct-current water pump, which is installed inside the housing. The water inlet is connected to an external water source through a pipeline, and the water outlet is connected to the greening area through a pipeline. The water pump control circuit includes an irrigation module triode with its base connected to the main control module, its emitter connected to the power supply, and its collector connected to the power supply terminal of the low-power direct-current water pump. Thus, the main control module controls the on / off of the irrigation module triode by outputting high and low levels to make the low-power direct-current water pump operate or stop.

6. The urban greening photovoltaic irrigation device based on the Internet of Things according to claim 1, characterized in that, The described display module includes an LCD1602 display screen, which is communicatively connected to the main control module.

7. An urban greening photovoltaic irrigation device based on the Internet of Things according to claim 1, characterized in that, The described threshold alarm module includes an alarm module triode and a light-emitting diode. The base of the alarm module triode is connected to the main control module, its emitter is connected to the power supply, and its collector is connected to the light-emitting diode. Thus, the main control module controls the on / off of the alarm module triode by outputting high and low levels to make the light-emitting diode light up or go out.

8. The urban greening photovoltaic irrigation device based on the Internet of Things according to claim 1, characterized in that, The described key module includes 4 independent keys, which are respectively arranged on the surface of the housing and are connected to 4 IO ports of the main control module through wires. Thus, when pressed respectively, they independently send signals to the main control module to achieve preset functions.

9. The urban greening photovoltaic irrigation device based on the Internet of Things according to claim 1, characterized in that, The described wireless communication module is a WiFi communication module, which communicates and connects with a mobile phone or a tablet computer as a remote control terminal through a wireless network WiFi signal, so that the remote control terminal and the main control module achieve wireless communication.

10. The urban greening photovoltaic irrigation device based on the Internet of Things according to claim 5, characterized in that, The described housing is a hollow rectangular body. Inside the housing, there are a front area and a rear area separated by a partition. And the central part of the rear area is further divided into a left area and a right area by a partition. The front area is provided with an environmental sensing module, and a drawer-like structure that can be pulled out and retracted is provided on the side wall of the front area for easy access to the environmental sensing module; the left area is provided with a storage battery, a power control circuit, a main control module, and a wireless communication module; the right area is provided with an irrigation module, and the water pump water outlet and water inlet of the irrigation module are provided on the side wall of the right area; the top surface of the housing is provided with a display module, a threshold alarm module, a key module, and a photovoltaic panel; the bottom is connected to the top of a fixed rod through a rotating shaft to achieve a 90-degree rotation and folding.

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