CN208191699U - One kind can expansion type automatic irrigation system - Google Patents

Abstract

The utility model discloses an expandable automatic irrigation system. In this system, the negative pole of the water pump is connected to the negative pole of the power supply of the water pump, the positive pole of the water pump is connected to the normal switch of the relay, and the positive pole of the power supply of the water pump is connected to the common terminal of the relay; The GND terminal of the sensor, the signal terminal is connected to any interface of the controller D2~D13; the positive and negative electrodes of the soil moisture sensor are respectively connected to the VCC and GND of the controller, and the data interface is connected to any interface of the controller D2~D13; The VCC and GND of the controller are respectively connected to the positive and negative terminals of the battery, the positive and negative terminals of the solar panel are respectively connected to the positive and negative terminals of the power input terminal of the charging module, and the positive and negative terminals of the battery terminal of the charging module are respectively connected to the positive and negative terminals of the battery. The utility model is energy-saving and electricity-saving, has strong universality, low cost and good expansibility.

Description

An expandable automatic irrigation system

technical field

The utility model belongs to the field of agricultural irrigation equipment, in particular to an expandable automatic irrigation system based on arduino.

Background technique

Most of the watering and irrigation facilities in traditional agricultural production activities are manual, requiring people to go to the site to observe the soil moisture and crop growth, and decide whether irrigation is needed based on experience. With the development of intelligent agriculture, the irrigation equipment in agricultural activities has also been changed to an automatic irrigation system.

The automatic irrigation system is a technical measure required to supplement the crops on the soil with the required water, temperature, fertilizers and other crops, and has relatively high technical requirements for the system. This leads to the common problems of high cost and single function in the existing automatic irrigation system, which further causes the problem of unsatisfactory system adaptability and expandability.

Utility model content

The purpose of the utility model is to provide an expandable automatic irrigation system based on arduino, aiming at solving the problems of high cost, unsatisfactory adaptability and expandability of the existing irrigation system.

The utility model is achieved in this way, an expandable automatic irrigation system, the system includes a detection control unit, an irrigation unit, a power supply unit; the detection control unit includes a soil moisture sensor, an arduino pro mini controller; the irrigation unit It includes a water pump and a relay; the power supply unit includes a storage battery; wherein,

The negative pole of the water pump is connected to the negative pole of the power supply of the water pump, the positive pole of the water pump is connected to the normal switch of the relay, the positive pole of the water pump power supply is connected to the common terminal of the relay; the positive pole of the control terminal of the relay is connected to any one of D2-D13 interfaces of the arduino pro mini controller, The negative pole is connected to the GND terminal of the arduino pro mini controller, and the signal terminal is connected to any interface D2~D13 of the arduino promini controller;

The positive and negative poles of the soil moisture sensor are respectively connected to VCC and GND of the arduino pro mini controller, and the data interface is connected to any interface of D2-D13 of the arduino pro mini controller;

The VCC and GND of the arduino pro mini controller are respectively connected to the positive and negative terminals of the storage battery.

Preferably, the power supply unit further includes a solar panel and a charging module; wherein, the positive and negative poles of the solar panel are respectively connected to the positive and negative poles of the power input terminal of the charging module, and the positive and negative poles of the battery terminal of the charging module are respectively connected to the battery terminals. positive and negative.

Preferably, the storage battery is an 18650 battery, the charging module is a TP4056 charging module, and the solar panel is formed by connecting two 84*55mm solar panels in parallel.

Preferably, the soil moisture sensor is a resistive soil moisture sensor; the relay is a high-level trigger solid-state relay.

Compared with the shortcomings and deficiencies of the prior art, the utility model has the following beneficial effects:

(1) Energy saving and power saving: the daily operation of the device does not require additional power supply, the solar charging system in the power supply unit can fully meet the daily needs, except for the soil moisture detection device, the rest of the equipment is in an open circuit or deep sleep state, basically No power loss;

(2) Strong universality: whether it corresponds to a large-scale irrigation environment of a farm garden or a small irrigation environment such as a family flower pot, as long as a suitable water pump is selected, various types of relays and sensors can be competent;

(3) The cost is very low: the cost of the basic control and detection equipment of the utility model can be controlled at tens of yuan;

(4) Very powerful expansibility: the utility model can realize the Internet of Things technology by connecting to the Internet; wherein, one control device can simultaneously connect and control multiple sets of irrigation systems and detection systems; by connecting other types of sensors, it can Detect various environmental factors (such as light intensity, temperature).

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the expandable automatic irrigation system of the present invention;

Fig. 2 is the circuit diagram of the charging module in the expandable automatic irrigation system of the present invention;

Fig. 3 is a wiring diagram of the relay in the expandable automatic irrigation system of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1 to 3, wherein, Figure 1 is a schematic structural view of an embodiment of the expandable automatic irrigation system of the present invention; Figure 2 is a circuit diagram of the charging module in the expandable automatic irrigation system of the present invention; Figure 3 is The wiring diagram of the relay in the expandable automatic irrigation system of the utility model.

The utility model discloses an expandable automatic irrigation system based on arduino. The system includes a detection control unit, an irrigation unit and a power supply unit; the detection control unit includes a soil moisture sensor 1 and an arduino promini controller 2; the irrigation The unit includes a water pump 3 and a relay 4; the power supply unit includes a storage battery 5; wherein,

The negative pole of the water pump 3 is connected to the negative pole of the water pump power supply (label omitted in the figure), the positive pole of the water pump 3 is connected to the normal switch of the relay 4, and the positive pole of the water pump power supply is connected to the common terminal of the relay 4; the positive pole of the control terminal of the relay 4 is connected to the arduino promini control Connect to any interface of D2~D13 of the arduino pro mini controller, connect the negative terminal to the GND terminal of the arduino pro mini controller, and connect the signal terminal to any interface of 2D2~D13 of the arduino pro mini controller;

The positive and negative poles of the soil moisture sensor 1 are respectively connected to VCC and GND of the arduino pro mini controller, and the data interface is connected to any interface of 2D2～D13 of the arduino pro mini controller;

The VCC and GND of the arduino pro mini controller are respectively connected to the positive and negative terminals of the storage battery 5 .

In the further implementation process, in order to make the system have the effect of automatic power supply and energy saving, the power supply unit also includes a solar panel 6 and a charging module 7; wherein, the positive and negative poles of the solar panel are respectively connected to the charging module 7 The positive and negative poles of the power input terminal of the charging module 7 are respectively connected to the positive and negative poles of the storage battery 5 .

In this utility model embodiment, above-mentioned controller, relay 4, sensor 1 etc. can all be purchased from the market, under the premise that can realize the utility model technical scheme, the technology recorded in the prior art can be used for explaining The specific circuit structures of the above-mentioned controller, relay 4 and sensor 1 in the present invention will not be repeated here.

In the embodiment of the present utility model, more specifically, the solar battery panel 6 is composed of two solar battery panels 6 with a size of 84*55mm, a TP4056 charging module 7, and an 18650 battery. Two 84*55mm solar panels 6 are connected in parallel, and the positive and negative poles of the solar panels are respectively connected to the positive and negative poles of the power input terminal of the TP4056 charging module 7 with wires with a allowable current of 2A, and the positive and negative poles of the battery terminal of the TP4056 charging module 7 are respectively It is connected to the positive and negative poles of the 18650 battery, and the positive and negative poles of the output terminal are respectively connected to the VCC and GND of the arduino pro mini controller. Among them, the charging unit composed of the solar panel 6 and the TP4056 charging module 7 charges the 18650 battery and provides power for the detection control unit.

In the utility model, more specifically, the adjustable resistance on the soil moisture sensor 1 adjusts the threshold value of the sensor 1, inserts the probe of the resistive soil moisture sensor 1 into the soil to detect the soil moisture value and sends the data back to the arduino promini for control Through programming, set the threshold value for the arduino pro mini controller to judge whether the soil needs to be watered; the positive and negative poles of the soil moisture sensor 1 are respectively connected to the VCC and GND of the arduino pro mini controller, and the data interface is connected to the arduino pro mini controller 2D2～D13 (such as D4) on any interface; the irrigation unit is composed of two parts: water pump 3 and high-level trigger solid state relay 4, the negative pole of water pump 3 is connected to the negative pole of the power supply of water pump 3 through a wire, and the positive pole of water pump 3 is connected through a wire Connect to the normally open terminal of relay 4, the negative pole of water pump 3 is connected to the common terminal of relay 4, the positive pole of the control terminal of relay 4 is connected to any interface of arduino pro mini controller 2D2~D13 (such as D5), and the negative pole is connected to the arduinopro mini controller The GND terminal of 2, the signal terminal is connected to any interface of 2D2~D13 (such as D6) of the arduino pro mini controller. For example, when the soil humidity is lower than the threshold, the sensor 1 sends a high level to the arduino pro mini controller 2 continuously, and the controller 2 wakes up from the deep sleep state after receiving the signal, executes the irrigation program, and first turns on the relay 4. The positive power supply (D5) of the control terminal is at a high level, and after a delay of 200 milliseconds, the signal terminal at the control terminal (D6) is at a high level to control the relay 4 to pull in, and the controlled terminal (water pump 3) starts to work. When the watering reaches a certain amount, the soil humidity sensor 1 detects that the soil humidity is higher than the threshold value, and controls the water pump 3 to stop watering (D6) at a low level, and after a delay of 200ms, the control terminal of the relay 4 is powered off (D5) at a low level. The controller 2 then enters a deep sleep mode.

The daily operation of the utility model does not require an additional power supply. The solar charging system in the power supply unit can fully meet the daily needs. Except for the soil moisture detection device, the rest of the equipment is in the state of open circuit or deep sleep, basically no power loss, energy saving and power saving Whether it is a large-scale irrigation environment corresponding to a farm garden or a small irrigation environment such as a family flower pot, as long as a suitable water pump 3 is selected, various types of relays 4 and sensors 1 can be competent, and have strong universality; The cost of the basic control and detection equipment of the utility model can be controlled at tens of yuan, and the cost is very low; moreover, the utility model can realize the Internet of Things technology by connecting to the Internet; wherein, one control device can connect and control multiple sets of irrigation systems at the same time and a detection system; by connecting other types of sensors 1, various environmental factors (such as light intensity and temperature) can be detected, which has very strong expansibility.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (4)

1. An expandable automatic irrigation system is characterized in that the system includes a detection control unit, an irrigation unit, and a power supply unit; the detection control unit includes a soil moisture sensor, an arduino pro mini controller; the irrigation unit includes a water pump , a relay; the power supply unit includes a storage battery; wherein, The negative pole of the water pump is connected to the negative pole of the power supply of the water pump, the positive pole of the water pump is connected to the normal switch of the relay, the positive pole of the water pump power supply is connected to the common terminal of the relay; the positive pole of the control terminal of the relay is connected to any one of D2-D13 interfaces of the arduino pro mini controller, The negative pole is connected to the GND terminal of the arduino pro mini controller, and the signal terminal is connected to any interface D2~D13 of the arduino pro mini controller; The positive and negative poles of the soil moisture sensor are respectively connected to VCC and GND of the arduino pro mini controller, and the data interface is connected to any interface of D2-D13 of the arduino pro mini controller; The VCC and GND of the arduino pro mini controller are respectively connected to the positive and negative terminals of the storage battery. 2. The expandable automatic irrigation system according to claim 1, wherein the power supply unit also includes a solar panel and a charging module; wherein, the positive and negative poles of the solar panel are respectively connected to the power supply of the charging module The positive and negative poles of the input terminal, the positive and negative poles of the battery terminal of the charging module are respectively connected to the positive and negative poles of the storage battery. 3. The expandable automatic irrigation system according to claim 2, characterized in that, the storage battery is an 18650 battery, the charging module is a TP4056 charging module, and the solar panels are two solar panels with a size of 84*55mm The panels are connected in parallel. 4. The expandable automatic irrigation system according to claim 1, wherein the soil moisture sensor is a resistive soil moisture sensor; and the relay is a high-level trigger solid state relay.