Intelligent irrigation system

Abstract

An irrigation system that controls the irrigation operations based upon soil irrigation decisions and weather forecasts generated by specific meteorological data, including soil temperature, soil moisture, air temperature, air humidity, air pressure, and rainfall collected by different sensors. The system comprises an irrigation decision module, a soil decision module, an air factor decision module, a rainfall information sensor, an irrigation controller, and a mobile APP. The irrigation system uses low-power radio frequency networking technology to communicate between different modules and devices.

Claims

1. An intelligent irrigation system configured to receive and process meteorological information in order to execute an irrigation plan, the irrigation system consisting of: an irrigation decision module; a soil factor decision module, wherein the soil factor decision module further consists of: a soil temperature sensor; a soil humidity sensor; and a wireless communication module; an air factor decision module, wherein the air factor decision module further consists of: an air temperature sensor; an air humidity sensor; and an air pressure sensor; a rainfall information sensor; a Wi-Fi smart gateway; a cloud platform to process and store the meteorological information, wherein the Wi-Fi smart gateway is connected to the cloud platform and uploads weather forecast, rainfall, soil moisture data and soil irrigation decisions to the cloud platform to generate storage data; an irrigation controller, wherein the irrigation controller controls water flow via a flow sensor; and a mobile phone application, wherein the mobile phone application is in data communication with the irrigation decision module; wherein the soil decision module monitors and records a soil temperature and soil moisture at an irrigation area to submit a soil irrigation decision to the irrigation decision module; wherein the air factor decision module monitors and records air temperature, air humidity, and air pressure at the irrigation area to produce weather forecasts; and wherein the irrigation decision module, the soil factor decision module, the air decision module, the irrigation controller, the rainfall information sensor, and the Wi-Fi smart gateway form a wireless communication network via radio frequency communication.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

(2) FIG. 1 is a schematic view of the principle of the present invention.

(3) FIG. 2 is a schematic diagram of the principle of a wifi smart gateway.

(4) FIG. 3 is a schematic diagram of the principle of the irrigation controller.

(5) FIG. 4 is a schematic diagram of the principle of various types of sensors in the present invention.

(6) FIG. 5 is a schematic diagram of the soil factor decision module.

(7) FIG. 6 is a schematic view of the irrigation controller.

(8) FIG. 7 is a schematic diagram of the wifi smart gateway.

DESCRIPTION OF THE INVENTION

(9) As shown in FIGS. 1-7, a low-power intelligent irrigation system based on radio frequency networking technology is provided. The irrigation system includes an irrigation decision module, an irrigation controller 5 disposed in an irrigation zone, a soil factor decision module 3, an air factor decision module 4; the soil factor decision module 3 submits a soil irrigation decision to the irrigation decision module based on a soil state in the irrigation zone; the air factor decision module 4 submits a weather forecast to the irrigation decision module according to an air state in the irrigation zone; the irrigation decision module is connected to the rainfall information sensor to receive current rainfall; the irrigation decision module determines whether to initiate irrigation operations in the irrigation zone based on the received soil irrigation decisions and the weather forecasts.

(10) The irrigation system further comprises a rainfall information sensor 2; the irrigation decision module, the irrigation controller, the soil factor decision module, and the air factor decision module and the rain information sensor form a wireless communication network by radio frequency communication.

(11) The irrigation system further comprises a rainfall information sensor; the irrigation decision module is connected to the rainfall information sensor to receive current rainfall.

(12) The irrigation decision module includes a wifi smart gateway 1 having a built-in data buffer.

(13) The soil factor decision module includes a soil temperature sensor, a soil moisture sensor, and a wireless communication module; the air factor decision module includes an air temperature sensor, an air humidity sensor, and an air pressure sensor; the air factor decision module monitors and records air temperature, air humidity, and air pressure in the irrigation zone as monitoring data; the air factor decision module generates the weather forecast by analyzing the recorded monitoring data.

(14) The irrigation controller has a built-in timed irrigation plan.

(15) When the soil moisture in the irrigation zone exceeds an irrigation threshold value, the soil factor decision module submits a soil irrigation decision and soil moisture data to the wifi intelligent gateway, so that the wifi intelligent gateway marks an irrigation zone watering identifier as a no-irrigation zone in the built-in data buffer.

(16) When the soil moisture in the irrigation zone does not exceed the irrigation threshold value, the soil factor decision module submits the soil irrigation decision and soil moisture data to the wifi intelligent gateway, so that the wifi intelligent gateway marks the irrigation zone watering identifier as an allowed irrigation zone in the built-in data buffer.

(17) The weather forecast submitted by the air factor decision module to the irrigation decision module includes current air temperature, current air humidity, current air pressure, and rain forecast indicator of the irrigation zone.

(18) The wifi smart gateway caches the weather forecasts, the current rainfall, the soil moisture data, and the soil irrigation decisions; the irrigation controller have a built-in timed irrigation plan.

(19) A settable value of the rain forecast indicator includes sunny within 6 to 24 hours or stormy within 6 to 24 hours; when the air factor decision module detects that an ambient humidity of the irrigation zone is less than 40% for six hours, the air factor decision module sets the rain forecast indicator in the submitted weather forecast to be sunny within 6 to 24 hours.

(20) When the air factor decision module detects that an ambient air pressure in the irrigation zone has dropped by more than 3 hPa within six hours, the air factor decision module sets the weather forecast indicator in the submitted weather forecast to stormy within 6 to 24 hours.

(21) When the rain forecast indicator in the weather forecast is sunny, the wifi smart gateway does not consider the soil moisture data and the content of the soil irrigation decision, when a timed task of the timed irrigation plan reaches an execution time, it sends an instruction to the irrigation controller to start watering operation.

(22) When the rain forecast indicator in the weather forecast is stormy, if the irrigation zone watering identifier is the allowed irrigation zone, when the timed task of the timed irrigation plan reaches the execution time, the wifi intelligent gateway sends an instruction to the irrigation controller to start watering operation.

(23) When the rain forecast indicator in the weather forecast is stormy, if the irrigation zone watering identifier is the no-irrigation zone, when the timed task of the timed irrigation plan reaches the execution time, the wifi intelligent gateway sends an instruction to the irrigation controller to not implement the current timed irrigation plan.

(24) When the wifi smart gateway detects that the current rainfall exceeds 10 mm by the rain information sensor, when the timed task of the timed irrigation plan reaches the execution time, the wifi smart gateway sends an instruction to the irrigation controller to not execute the current timed irrigation plan.

(25) In addition, the wifi smart gateway is connected to a cloud platform of an Internet, and uploads the cached weather forecast, current rainfall, soil moisture data and soil irrigation decisions to the cloud platform to form storage data.

(26) The storage data further includes an irrigation state, an irrigation plan, a water consumption amount per irrigation, weather information, and soil state information; the storage data of the cloud platform is configured to be remotely viewed through a mobile phone APP.

(27) The mobile phone APP is provided with an interactive interface for adjusting the irrigation duration of the timed irrigation plan.

(28) The irrigation controller has a built-in high-precision flow sensor, the flow sensor automatically records the water consumption amount per irrigation and the accumulated water consumption amount per irrigation.

(29) The wifi smart gateway monitors the operating state of the device through the flow sensor, and when an abnormal flow caused by a valve not being normally closed is found, the wifi smart gateway sends a warning message to the mobile phone APP of a manager.

(30) The radio frequency communication is based on the low-power radio frequency communication technology, and a low-power radio frequency communication module is used. The low-power radio frequency communication module is a RF433 radio frequency module, a LoRa module, a zigbee module, or a NB-LOT module.

Embodiment

(31) The wifi intelligent gateway of the invention can upload the cached local meteorological information, soil information and rainfall information to the cloud platform, and the user can connect to the cloud platform through the mobile APP to remotely view the irrigation state, set the irrigation plan, view the water consumption per irrigation, and view meteorological information and soil information.

(32) In the intelligent scene, the APP of the present invention is used for interaction interface, the execution condition is settable. For example, when the weather forecast is clear and the current humidity is less than the set table. value on the APP interface, the irrigation time can be increased by 30%, or when the rainfall is more than 3 mm and less than 7 mm the irrigation time can be reduced by 50%. On the one hand, the water required for plant growth is ensured, and on the other hand the purpose of water saving is achieved.

(33) In this embodiment, the soil factor decision module and the air factor decision module all have built-in MCUs as a main control module for analyzing data.

(34) Although the above embodiments have been described, those skilled in the art can make other changes and modifications to these embodiments once they have learned the basic inventive concept. Therefore, the above descriptions are only the embodiments of the present invention, and thus does not limit the patent protective scope of the present invention. Similarly, any equivalent structure or equivalent process transformation made by using the present specification and the drawings, or directly or indirectly applied to other relevant technical fields, shall be included in the patent protective scope of the present invention.