Automatic spraying maintenance device for municipal garden trees

Abstract

The utility model provides a kind of automatic spraying maintenance device for municipal garden trees, including control layer, execution layer and pipe network layer, control layer includes control unit and sensor system, control unit is based on microcomputer controller, sensor system includes soil humidity sensor and air humidity sensor, control unit is connected to sensor system by interface, execution layer includes executing mechanism and protection module, executing mechanism includes electromagnetic relay and water pump start-stop circuit, pipe network layer includes water intake unit, pipe network unit and spraying unit, water intake unit sets submersible pump at river water source, submersible pump is electrically connected with electromagnetic relay, submersible pump water outlet is connected with pipe network unit, pipe network unit is connected with the atomizing nozzle array of spraying unit.The utility model is integrated with low-cost equipment such as microcomputer controller, soil humidity and air humidity sensor, realizes the real-time perception to soil and air environment, and dynamically adjusts the timing, frequency and water volume of spraying, reaches the purpose of on-demand supply, accurate control.

Description

Technical Field

[0001] This utility model relates to the field of garden maintenance, and in particular to an automatic sprinkler maintenance device for trees in municipal gardens. Background Technology

[0002] Municipal tree irrigation is a core component of urban greening maintenance, and its effectiveness directly impacts urban ecological quality and sustainable development. In my country, different cities face significantly different irrigation challenges; water-scarce cities in the north and rainy cities in the south face drastically different problems.

[0003] Currently, the municipal irrigation sector is facing the problem of serious water waste due to outdated technology. Many cities rely on primitive and extensive methods such as hose flooding, and unreasonable irrigation schedules also cause water loss due to evaporation. However, the high cost of upgrading to smart irrigation systems makes it difficult for many small and medium-sized cities to afford. Summary of the Invention

[0004] This utility model aims to address the shortcomings of existing technologies by providing an automatic sprinkler maintenance device for municipal garden trees.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] An automatic sprinkler maintenance device for municipal garden trees includes a control layer, an execution layer, and a pipeline layer. The control layer includes a control unit and a sensor system. The control unit is based on a microcomputer controller, and the sensor system includes a soil moisture sensor and an air humidity sensor. The control unit interfaces with the sensor system. The execution layer includes an actuator and a protection module. The actuator includes an electromagnetic relay and a water pump start-stop circuit. The relay contacts of the electromagnetic relay are connected to the water pump start-stop circuit. The protection module includes an overvoltage protection circuit and a current abnormality monitoring circuit. The control unit adjusts the control signal input to the electromagnetic relay and water pump start-stop circuit of the actuator, and simultaneously monitors each circuit and device using the overvoltage protection circuit and the current abnormality monitoring circuit. The pipeline layer includes a water intake unit, a pipeline unit, and a sprinkler unit. The water intake unit is equipped with a submersible pump at a river water source. The submersible pump is electrically connected to the electromagnetic relay. The water inlet of the submersible pump is connected to a filter, and the water outlet of the submersible pump is connected to the pipeline unit. The pipeline unit is connected to the atomizing nozzle array of the sprinkler unit.

[0007] The control unit includes a main controller, a DC-DC step-down module, a relay drive circuit, a watchdog register, a soil moisture sensor interface, an air humidity sensor interface, and a relay control interface. The main controller contains the DC-DC step-down module and has interfaces for the soil moisture sensor, air humidity sensor, current monitoring, and relay control. The soil moisture sensor interface connects to a soil moisture sensor, the air humidity sensor interface connects to an air humidity sensor, the current monitoring interface connects to a current monitor, and the relay control interface connects to an electromagnetic relay. The main controller also has a relay drive circuit connected to the electromagnetic relay via the relay control interface and a watchdog register.

[0008] The overvoltage protection circuit includes a gas discharge tube, a varistor, and a TVS diode, while the current abnormality monitoring circuit includes a Hall sensor and a differential amplifier.

[0009] The pipeline unit is a PPR pipeline, including main pipes and branch pipes. The PPR pipeline and pipe fittings are connected by socket heat fusion, and the PPR pipeline and metal pipe fittings are connected by thread.

[0010] The spray unit is a stainless steel atomizing nozzle, which is connected to the end of the branch pipe to form an atomizing nozzle array.

[0011] The beneficial effects of this utility model are: by integrating low-cost equipment such as microcomputer controllers, soil moisture and air humidity sensors, this utility model can realize real-time perception of soil and air environment, and dynamically adjust the timing, frequency and water volume of spraying, so as to achieve the purpose of supplying on demand and precise control, and realize precise irrigation and humidity management. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the framework of this utility model;

[0013] Figure 2 This is a structural diagram of the control unit frame of this utility model;

[0014] Figure 3 This is a structural diagram of the execution layer of this utility model;

[0015] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] An automatic sprinkler system for municipal landscaping tree maintenance includes a control layer, an execution layer, and a piping layer. The control layer comprises a control unit and a sensor system. The control unit is based on a microcomputer controller, specifically an ESP32-C3 model. The sensor system includes soil moisture and air humidity sensors, and the control unit interfaces with the sensor system. The execution layer includes an actuator and a protection module. The actuator includes an electromagnetic relay and a water pump start / stop circuit. The relay contacts of the electromagnetic relay are connected to the water pump start / stop circuit to control the submersible pump. The protection module includes an overvoltage protection circuit and an electrical... The flow abnormality monitoring circuit and control unit adjust the control signal input to the electromagnetic relay and water pump start / stop circuit of the actuator. At the same time, the overvoltage protection circuit and current abnormality monitoring circuit monitor each circuit and equipment. The overvoltage protection circuit and current abnormality monitoring circuit monitor the AC power input in real time. The pipeline layer includes a water intake unit, a pipeline unit and a sprinkler unit. The water intake unit is equipped with a submersible pump at the river water source. The submersible pump model is QS32×25-4. The submersible pump is electrically connected to the electromagnetic relay. The water inlet of the submersible pump is connected to the filter. The water outlet of the submersible pump is connected to the pipeline unit. The pipeline unit is connected to the atomizing nozzle array of the sprinkler unit.

[0018] The control unit includes a main controller, a DC-DC step-down module, a relay drive circuit, a watchdog register, a soil moisture sensor interface, an air humidity sensor interface, and a relay control interface. The main controller contains the DC-DC step-down module and features an I2C / UART interface for the soil moisture sensor, air humidity sensor, current monitoring, and relay control interfaces. The soil moisture sensor interface connects to a soil moisture sensor, and the air humidity sensor interface connects to an air humidity sensor. The sensor interfaces are coated with conformal coating for moisture protection. The current monitoring interface connects to a current monitor, and the relay control interface connects to an electromagnetic relay. All interfaces are ESD protected. The main controller includes a relay drive circuit connected to the electromagnetic relay via the relay control interface. A watchdog register is also included on the main controller. The housing is IP65 protected, and the operating temperature range is -30℃ to 70℃.

[0019] The overvoltage protection circuit includes a gas discharge tube, a varistor, and a TVS diode, while the current abnormality monitoring circuit includes a Hall sensor and a differential amplifier.

[0020] The pipeline unit is a PPR pipeline, including a main pipe and branch pipes. The main pipe has a diameter of 32mm and the branch pipe has a diameter of 25mm. The PPR pipeline and pipe fittings are connected by socket heat fusion, and the PPR pipeline and metal pipe fittings are connected by threaded connection.

[0021] The spray unit is a stainless steel atomizing nozzle with an orifice diameter of 2.0 mm. The stainless steel atomizing nozzle is connected to the end of the branch pipe to form an atomizing nozzle array. The installation height of the spray unit is 3.0-3.5 m, and the coverage radius is 2 m.

[0022] When this utility model is in operation, the maintenance device dynamically sets the spraying strategy based on a microcomputer controller, and obtains environmental data feedback through soil moisture sensors and air humidity sensors. Furthermore, it adjusts the control signal input to the electromagnetic relay and water pump start-stop circuit of the actuator, and controls the QS32×25-4 submersible pump through the actuator. At the same time, it uses overvoltage protection circuit and current abnormality monitoring circuit to monitor the system circuit and equipment in real time. Furthermore, after the river water is pressurized by the QS32×25-4 submersible pump, it enters the pressure-resistant PPR pipe network with heat fusion connection through the disc filter. The irrigation water is output to the end stainless steel atomizing nozzle through the pipe network unit. The stainless steel atomizing nozzle forms a uniform water mist with a diameter of 2m at a 45° elevation angle to complete the irrigation.

[0023] The control unit first inputs DC power to the DC-DC step-down module to stabilize the voltage at the controller's operating voltage. The main controller is an ESP32-C3. It reads sensor data and current status in the circuit in real time through the soil moisture sensor interface, air humidity sensor interface, and current monitoring interface. It then transmits the start / stop signal to the relay drive circuit. The relay drive circuit amplifies the signal and transmits it to the electromagnetic relay through the relay control interface to complete the relay contact on / off control. At the same time, the watchdog register monitors the main controller's operating status in real time. When the main controller software freezes, it automatically resets the main controller.

[0024] Under normal circumstances, the AC input passes through the overvoltage protection circuit and the current anomaly monitoring circuit before entering the water pump start-stop circuit. When the control unit sends a signal, the voltage is boosted by the relay drive circuit, the relay contacts close, the water pump start-stop circuit is activated, and the submersible pump starts operating. When a surge voltage occurs in the circuit, the gas discharge tube conducts, causing the surge to ground. When the power grid experiences overvoltage, the varistor conducts, absorbing the overvoltage energy and ensuring normal circuit operation. When a voltage spike or short circuit occurs in the circuit, the TVS diode conducts and grounds, disconnecting the circuit and protecting it. The current anomaly monitoring circuit uses a Hall element and a differential amplifier to monitor the current in the circuit in real time. When the water pump stalls or runs dry, it transmits an abnormal current signal (too high, too low) to the control unit. The control unit then sends a signal to disconnect the relay contacts, protecting the submersible pump.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An automatic sprinkler system for the maintenance of trees in municipal gardens, characterized in that, It includes a control layer, an execution layer, and a pipeline layer. The control layer includes a control unit and a sensor system. The control unit is based on a microcomputer controller. The sensor system includes soil moisture sensors and air humidity sensors. The control unit interfaces with the sensor system. The execution layer includes actuators and a protection module. The actuators include electromagnetic relays and a water pump start-stop circuit. The relay contacts of the electromagnetic relays are connected to the water pump start-stop circuit. The protection module includes an overvoltage protection circuit and a current abnormality monitoring circuit. The control unit adjusts the control signal input to the electromagnetic relays and water pump start-stop circuits of the actuators. At the same time, it uses the overvoltage protection circuit and the current abnormality monitoring circuit to monitor each circuit and equipment. The pipeline layer includes a water intake unit, a pipeline unit, and a sprinkler unit. The water intake unit is equipped with a submersible pump at the river water source. The submersible pump is electrically connected to the electromagnetic relay. The water inlet of the submersible pump is connected to a filter. The water outlet of the submersible pump is connected to the pipeline unit. The pipeline unit is connected to the atomizing nozzle array of the sprinkler unit.

2. The automatic sprinkler maintenance device for municipal garden trees according to claim 1, characterized in that, The control unit includes a main controller, a DC-DC step-down module, a relay drive circuit, a watchdog register, a soil moisture sensor interface, an air humidity sensor interface, and a relay control interface. The main controller contains the DC-DC step-down module and has interfaces for the soil moisture sensor, air humidity sensor, current monitoring, and relay control. The soil moisture sensor interface connects to a soil moisture sensor, the air humidity sensor interface connects to an air humidity sensor, the current monitoring interface connects to a current monitor, and the relay control interface connects to an electromagnetic relay. The main controller also has a relay drive circuit connected to the electromagnetic relay via the relay control interface and a watchdog register.

3. The automatic sprinkler maintenance device for municipal garden trees according to claim 1, characterized in that, The overvoltage protection circuit includes a gas discharge tube, a varistor, and a TVS diode, while the current abnormality monitoring circuit includes a Hall sensor and a differential amplifier.

4. The automatic sprinkler maintenance device for municipal garden trees according to claim 1, characterized in that, The pipeline unit is a PPR pipeline, including main pipes and branch pipes. The PPR pipeline and pipe fittings are connected by socket heat fusion, and the PPR pipeline and metal pipe fittings are connected by thread.

5. The automatic sprinkler maintenance device for municipal garden trees according to claim 4, characterized in that, The spray unit is a stainless steel atomizing nozzle, which is connected to the end of the branch pipe to form an atomizing nozzle array.

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