Overview
ISO 21622-1:2026 sets out the foundational principles and general considerations for remote monitoring and control systems (RMCS) in irrigation applications. Developed by ISO, this international standard addresses the selection, design, classification, and characterization of RMCS, ensuring they are suitable for managing irrigation entities that are often dispersed and unattended. The document covers both general-purpose automation devices and controllers specifically developed for irrigation needs, taking into account the unique challenges of the irrigation environment, such as energy constraints, environmental robustness, and communication requirements.
Key Topics
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Definition and Scope of RMCS in Irrigation:
RMCS comprise hardware and software solutions that monitor and/or control irrigation processes, including water intake, distribution, and application.
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Types, Classification, and Characterization:
The standard introduces a structured approach to categorize RMCS based on their functionality, communications, power supply, and technical maintenance needs.
- Types: Four types, ranging from systems focused only on monitoring (Type 0) to those capable of distributed control and local algorithm execution (Type 3).
- Classification: Establishes codes for communication refresh times and power supply details, helping users quickly compare different RMCS products.
- Characterization: Expands classification with detailed communication technologies, power generator specs, and energy accumulator types.
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Design Parameters for Irrigation RMCS:
With irrigation installations typically spread over wide areas, RMCS must deliver dependable operation under varying and often harsh environmental conditions.
- Environmental Robustness: Devices must meet specified ingress protection (IP) ratings for dust and water, as established by standards such as IEC 60529.
- Architecture Flexibility: Supports different network topologies and communication technologies, including wireless and wired solutions.
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Special Considerations for Controllers Developed for Irrigation:
The standard includes specific recommendations for the hardware and firmware of irrigation controllers, which may be proprietary and tailored only for certain application scenarios.
Applications
ISO 21622-1:2026 is valuable for a broad range of stakeholders involved in irrigation projects, including system integrators, equipment manufacturers, farm operators, and irrigation network managers. Practical applications include:
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Design and Procurement:
Clearly defines criteria for evaluating and selecting remote monitoring and control systems suitable for diverse irrigation environments.
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System Implementation:
Provides a basis for specifying required levels of environmental protection, power supply, communication refresh rates, and runtime capabilities for RMCS deployed in the field.
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Maintenance and Upgrades:
The classification and characterization framework supports efficient maintenance planning and simplifies the process of upgrading or replacing system components.
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Interoperability and Future Expansion:
Although part 1 focuses on general considerations, the structured approach to classification facilitates interoperability and integration with other standards-based solutions.
Related Standards
For comprehensive compliance and integration, ISO 21622-1:2026 should be used alongside other key standards, including:
- ISO 21622-3 - Irrigation techniques - Remote monitoring and control for irrigation - Part 3: Interoperability
- IEC 60529 - Degrees of protection provided by enclosures (IP code)
- IEC 60870 series - Telecontrol equipment and systems, addressing operating conditions and communication protocols
- IEC 61131 - Applicable where RMCS utilize programmable logic controllers (PLCs)
Conclusion
Implementing ISO 21622-1:2026 enables organizations to ensure that their remote monitoring and control systems for irrigation are reliable, robust, and appropriately classified for their specific use case. The standard provides a valuable framework for selecting, deploying, and maintaining advanced RMCS, supporting the efficiency and sustainability of modern irrigation practices. By following this standard, stakeholders can enhance the dependability and longevity of irrigation control networks, while ensuring alignment with international best practices and related technical standards.