A machine well irrigation controller

Abstract

The utility model relates to agricultural irrigation technical field, and disclose a kind of machine well irrigation controller, including main control module, and the electric quantity metering module, sensor interface module, remote communication module, water pump control module, storage module, man-machine interaction module, power module and radio frequency read-write module connected with main control module respectively;Wherein main control module adopts MCU chip that supports remote upgrade and parameter configuration, for parsing control command, processing data, monitoring current voltage, control relay and execute three-phase protection detection, electric quantity metering module includes metering chip and current voltage sampling circuit, and metering chip is communicated with main control module by SPI bus;By integrating the functions such as electric meter, water pump protector, controller, reduce equipment occupied space and failure point, simplify installation process, and higher integration degree;Adopt magnetic latching relay control water pump, solve the unstable problem of traditional ac contactor when voltage is abnormal, improve irrigation continuity.

Description

Technical Field

[0001] This utility model relates to the field of agricultural irrigation technology, specifically a well irrigation controller. Background Technology

[0002] Traditional farmland irrigation equipment suffers from fragmented functions and low integration, typically requiring separate power meters, pump protectors, and AC contactors, leading to complex installation and numerous potential points of failure. Furthermore, traditional control methods using AC contactors to start and stop pumps are prone to frequent disconnections or malfunctions when voltage is unstable, impacting irrigation efficiency and equipment lifespan. In addition, existing equipment suffers from poor compatibility, making it difficult to integrate with various sensors for precision irrigation, and lacks effective remote management and data monitoring capabilities, failing to meet the demands of modern intelligent agricultural management. Therefore, we propose a well irrigation controller. Utility Model Content

[0003] The purpose of this invention is to provide a well irrigation controller to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a well irrigation controller, comprising a main control module, and a power metering module, a sensor interface module, a remote communication module, a water pump control module, a storage module, and a human-machine interaction module respectively connected to the main control module;

[0005] The main control module uses an MCU chip that supports remote upgrades and parameter configuration. It is used to parse control commands, process data, monitor current and voltage, control relays, and perform three-phase protection detection.

[0006] The power metering module includes a metering chip and a current and voltage sampling circuit. The metering chip communicates with the main control module via an SPI bus, and the current and voltage sampling circuit uses a current transformer and a voltage transformer to acquire signals.

[0007] The sensor interface module includes a digital input unit, a pulse input unit, an analog input unit, a digital output unit, and a bus interface unit, which are used to connect to external monitoring equipment.

[0008] The remote communication module adopts a communication adapter board structure and can integrate GPRS / 4G / BeiDou / GPS modules to realize data transmission and positioning functions;

[0009] The water pump control module includes a relay control circuit, which uses a magnetic latching relay to directly control the start and stop of the water pump.

[0010] The storage module uses a NORFLASH memory to cyclically store monitoring data that is not lost when power is off.

[0011] The human-computer interaction module includes an LCD display unit, a voice prompt unit, and a button input unit.

[0012] Optionally, the metering chip of the power metering module is RN8302B or ADE7758ARS, the transformation ratio of the current transformer is selected according to the current specification, and the current sampling resistor satisfies that the effective value of the sampling signal is less than 565.7mV when the maximum current input is achieved.

[0013] Optionally, the digital input unit of the sensor interface module is connected to the GPIO interface of the main control module after being isolated by an LED indicator circuit and an optocoupler; the pulse input unit is connected to the timer / counter interface of the main control module after level conversion by a 74LVC245 chip; the analog input unit converts the 4-20mA current signal into a voltage signal, which is then processed by an operational amplifier and an optocoupler before being connected to the ADC interface of the main control module.

[0014] Optionally, the water pump control module includes two ordinary relay control circuits and a magnetic latching relay control circuit. The drive circuit of the magnetic latching relay supports a voltage range of AC260V-AC450V and a current range of 0-100A.

[0015] Optionally, the communication adapter board of the remote communication module can be selectively soldered with EC20, MC20 or M26 communication modules, supporting multi-mode transmission and Beidou / GPS positioning, and can automatically alarm when it deviates from the installation position.

[0016] Optionally, the LCD display unit of the human-machine interaction module adopts an LCD12864 display screen, which supports Chinese display and displays the equipment status, water and electricity consumption information and monitoring data in real time; the voice prompt unit adopts an SC5080B voice chip to realize operation guidance and fault alarm voice prompts.

[0017] Optionally, it also includes a power module, which has a DC24V or AC12V input and outputs DC3.3V / 5V power through a rectifier bridge and a voltage regulator chip, and has backup battery charging and power failure switching functions.

[0018] Optionally, it also includes an RF read / write module, which uses an FM1702SL card reader chip to support CPU RF card read / write operations, enabling card-based water dispensing and balance management functions.

[0019] Compared with the prior art, the present invention provides a well irrigation controller, which has the following beneficial effects:

[0020] 1. This well irrigation controller integrates the functions of an electric meter, water pump protector, and controller into one unit, reducing equipment space occupation and failure points, simplifying the installation process, and achieving a higher degree of integration; it adopts a magnetic latching relay to control the water pump, solving the instability problem of traditional AC contactors when the voltage is abnormal, and improving irrigation continuity.

[0021] 2. This well irrigation controller, with its rich array of sensor interfaces, can connect to various monitoring and bus devices, supports external frequency converters and soft starters, and is adaptable to different application scenarios. It features remote communication, positioning, data storage, and intelligent analysis functions, supports remote control, parameter configuration, and fault alarms, and enables precise irrigation and scientific fertilization. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall system of this utility model;

[0023] Figure 2 This is a schematic diagram of the voltage sampling circuit of this utility model;

[0024] Figure 3 This is a schematic diagram of the voltage sampling circuit of this utility model;

[0025] Figure 4 This is a schematic diagram of the LED indicator circuit of this utility model;

[0026] Figure 5 This is a schematic diagram of the pulse input unit circuit of this utility model;

[0027] Figure 6 This is a schematic diagram of the analog input unit circuit of this utility model;

[0028] Figure 7 This is a schematic diagram of one channel of the ordinary relay control circuit of this utility model;

[0029] Figure 8 This is another schematic diagram of the ordinary relay control circuit of this utility model;

[0030] Figure 9 This is a schematic diagram of the magnetic latching relay control circuit of this utility model;

[0031] Figure 10 This is a schematic diagram of the power module of this utility model;

[0032] Figure 11 This is a schematic diagram of the power module of this utility model;

[0033] Figure 12 This is a schematic diagram of the power module of this utility model;

[0034] Figure 13This is a circuit diagram of the radio frequency read / write module of this utility model;

[0035] Figure 14 This is a schematic diagram of the driving circuit of the magnetic latching relay of this utility model;

[0036] Figure 15 This is a circuit diagram of the storage module of this utility model. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] like Figures 1-15 As shown, this utility model provides a technical solution:

[0039] A well irrigation controller includes a main control module, and a power metering module, a sensor interface module, a remote communication module, a water pump control module, a storage module, a human-machine interaction module, a power supply module, and an RF read / write module, all connected to the main control module respectively.

[0040] The main control module uses an MCU chip that supports remote upgrades and parameter configuration to parse control commands, process data, monitor current and voltage, control relays, and perform three-phase protection detection.

[0041] The power metering module includes a metering chip and a current and voltage sampling circuit. The metering chip communicates with the main control module via an SPI bus, and the current and voltage sampling circuit uses a current transformer and a voltage transformer to acquire signals.

[0042] The sensor interface module includes a digital input unit, a pulse input unit, an analog input unit, a digital output unit, and a bus interface unit, which are used to connect to external monitoring equipment.

[0043] The remote communication module adopts a communication adapter board structure and can integrate GPRS / 4G / BeiDou / GPS modules to realize data transmission and positioning functions;

[0044] The water pump control module includes a relay control circuit, which uses a magnetic latching relay to directly control the start and stop of the water pump.

[0045] The storage module uses NORFLASH memory to cyclically store monitoring data that is not lost when power is off;

[0046] The human-computer interaction module includes an LCD display unit, a voice prompt unit, and a button input unit.

[0047] The metering chip in the power metering module is either RN8302B or ADE7758ARS. The current transformer ratio is selected according to the current specifications, and the current sampling resistor ensures that the effective value of the sampled signal is less than 565.7mV at maximum current input. The digital input unit of the sensor interface module is connected to the GPIO interface of the main control module after being isolated by an LED indicator circuit and optocouplers. The pulse input unit is connected to the timer / counter interface of the main control module after level conversion using a 74LVC245 chip. The analog input unit converts the 4-20mA current signal into a voltage signal, which is then processed by an operational amplifier and optocouplers before being connected to the ADC interface of the main control module.

[0048] The water pump control module includes two ordinary relay control circuits and a magnetic latching relay control circuit. The magnetic latching relay drive circuit supports a voltage range of AC260V-AC450V and a current range of 0-100A.

[0049] The communication adapter board of the remote communication module can selectively solder EC20, MC20 or M26 communication modules, supports multi-mode transmission and Beidou / GPS positioning, and can automatically alarm when it deviates from the installation position.

[0050] The human-machine interface module's LCD display unit uses an LCD12864 screen, supporting Chinese display and showing real-time equipment status, water and electricity consumption information, and monitoring data. The voice prompt unit uses an SC5080B voice chip to provide operation guidance and fault alarm voice prompts. The power module input is DC24V or AC12V, and outputs DC3.3V / 5V power through a rectifier bridge and voltage regulator chip, and has backup battery charging and power failure switching functions. The RF read / write module uses an FM1702SL card reader chip, supporting CPU RF card read / write operations to realize card-based water dispensing and balance management functions.

[0051] As one application of this embodiment:

[0052] This well irrigation controller integrates the functions of an electric meter, a water pump protector, and a controller into one unit, reducing the space occupied by the equipment and the number of failure points, simplifying the installation process, and achieving a higher degree of integration. It adopts a magnetic latching relay to control the water pump, which solves the instability problem of traditional AC contactors when the voltage is abnormal, and improves the continuity of irrigation.

[0053] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A well irrigation controller, characterized in that, It includes a main control module, and a power metering module, a sensor interface module, a remote communication module, a water pump control module, a storage module, and a human-machine interaction module, which are respectively connected to the main control module; The main control module uses an MCU chip that supports remote upgrades and parameter configuration. It is used to parse control commands, process data, monitor current and voltage, control relays, and perform three-phase protection detection. The power metering module includes a metering chip and a current and voltage sampling circuit. The metering chip communicates with the main control module via an SPI bus, and the current and voltage sampling circuit uses a current transformer and a voltage transformer to acquire signals. The sensor interface module includes a digital input unit, a pulse input unit, an analog input unit, a digital output unit, and a bus interface unit, which are used to connect to external monitoring equipment. The remote communication module adopts a communication adapter board structure and can integrate GPRS / 4G / BeiDou / GPS modules to realize data transmission and positioning functions; The water pump control module includes a relay control circuit, which uses a magnetic latching relay to directly control the start and stop of the water pump. The storage module uses a NORFLASH memory to cyclically store monitoring data that is not lost when power is off. The human-computer interaction module includes an LCD display unit, a voice prompt unit, and a button input unit.

2. A well irrigation controller according to claim 1, characterized in that, The metering chip of the power metering module is RN8302B or ADE7758ARS, and the transformation ratio of the current transformer is selected according to the current specification.

3. A well irrigation controller according to claim 1, characterized in that, The digital input unit of the sensor interface module is connected to the GPIO interface of the main control module after being isolated by an LED indicator circuit and an optocoupler; the pulse input unit is connected to the timer / counter interface of the main control module after level conversion by a 74LVC245 chip; the analog input unit converts the 4-20mA current signal into a voltage signal, which is then processed by an operational amplifier and an optocoupler before being connected to the ADC interface of the main control module.

4. A well irrigation controller according to claim 1, characterized in that, The water pump control module includes two ordinary relay control circuits and a magnetic latching relay control circuit. The drive circuit of the magnetic latching relay supports a voltage range of AC260V-AC450V and a current range of 0-100A.

5. A well irrigation controller according to claim 1, characterized in that, The communication adapter board of the remote communication module can be selectively soldered with EC20, MC20 or M26 communication modules, supporting multi-mode transmission and BeiDou / GPS positioning.

6. A well irrigation controller according to claim 1, characterized in that, The human-machine interaction module's LCD display unit uses an LCD12864 display screen, which supports Chinese display and shows the equipment status, water and electricity consumption information, and monitoring data in real time; the voice prompt unit uses an SC5080B voice chip.

7. A well irrigation controller according to claim 1, characterized in that, It also includes a power module, which takes DC24V or AC12V input and outputs DC3.3V / 5V power through a rectifier bridge and a voltage regulator chip, and has backup battery charging and power failure switching functions.

8. A well irrigation controller according to claim 1, characterized in that, It also includes an RF read / write module, which uses the FM1702SL card reader chip.

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