Revolutionizing Water Lift Irrigation with LoRaWAN Automation

Introduction:

The deployment of drip Irrigation systems has been prevailing over the last few decades and it poses many difficulties to manual control them once they are installed on a large scale. Drip irrigation is a type of micro irrigation that has gained great attention in recent years due to its potential to increase yields and decrease water use. Water is distributed through a network of valves, pipes, tubing, and emitters, and it is then dripped slowly, either from above or below the soil surface, directly to the plant's root zone.

In this context, LoRaWAN (Long Range Wide Area Network) technology emerges as a game-changer for water lift irrigation automation. This article explores how LoRaWAN technology is reshaping the way we manage water distribution in agriculture.

Automating Water Lift Irrigation with LoRaWAN:

The conventional process of water lift irrigation involves pumping water from a reservoir to an overhead tank, from where it is distributed via a supply network. In some cases, gravity is utilized to move water when the reservoir is at a higher altitude. The end point of this supply network is an OMS (Operation and Maintenance Substation) node, typically commissioned in the field. Additional AMS (Area Monitoring Station) nodes are also part of the distribution network.

At the OMS level, solenoids are used to control water supply and operate valves, determining when water starts or stops flowing. These valves are remotely controlled via a Web Scada Software. Reliable connectivity is essential for the successful implementation of large-scale irrigation projects.

The AMS system is also controlled through Web Scada via LoRaWAN.

Challenges & Benefits:

• Alternative Connectivity Systems: Previous connectivity methods proved error-prone and complex.
• Limited Range: Other options like Wi-Fi, 4G, or Bluetooth have limited coverage, especially in remote areas.
• Increased Costs and Complexity: Alternative options can be costlier and complex to maintain and expand.
• Higher Power Consumption: Wi-Fi and cellular networks consume more power than LoRaWAN.
• Security and Data Privacy: LoRaWAN offers superior security and data privacy.
• Scalability: LoRaWAN's scalability surpasses that of other options.

Architecture:

LoRaWAN End Node: Each controller (OMS/AMS) is connected to a unique LoRa End Node for two-way communication.

LoRaWAN Gateway: Centralized installed Gateways serve multiple nodes, can be solar-powered, and equipped with high-gain outdoor antennas for signal amplification.

LoRaWAN Network Server (LNS): LNS acts as the network's brain, maintaining real-time data, RF performance, payload security, and communication parameters.

Application Software: LoRa Network Server further sends the data to Web Scada Software integrated with APIs. Web SCADA software empowers efficient monitoring and control of LoRaWAN networks from any browser, ensuring seamless network management.

LoRaWAN network operates in a Star of Star Topology, with End Nodes communicating with the LoRa Network Server through LoRaWAN Gateways.

Conclusion:

LoRaWAN automation is revolutionizing water lift irrigation, simplifying complex systems and ensuring efficient water distribution in agriculture. With extensive coverage, low power consumption, and scalability, LoRaWAN is the key to enhancing agricultural productivity while conserving precious water resources.