Well Irrigation RF Information Processor Series – Intelligent, Reliable, and Field-Proven

Shandong Jintian‘s Well Irrigation RF Information Processor Series (Models: LDK50-15, LDK50-15A, LDK50-15B, LDK50-15C) is a comprehensive intelligent irrigation management solution designed for groundwater well irrigation systems. As an integral component of the field controller ecosystem, this processor series integrates RF card reading, pump control, power management, and irrigation data processing into a rugged, field-ready unit — eliminating the need for traditional pump houses and significantly reducing infrastructure costs.

The system complies with China National Standard GB/T 40119-2021 (Radio Frequency Card Irrigation Intelligent Control Systems – General Technical Specifications), for which Shandong Jintian served as the primary drafting organization. With over 23 years of innovation in RF card-based irrigation technology, this product series is trusted by more than 700,000 water users across nearly 4,000 villages in China. Shandong Jintian pioneered the “enclosure-free RF card controller” irrigation model, which has become an advanced standard for well irrigation management nationwide. The company’s sixth-generation product, “wireless communication terminal remote intelligent irrigation control device,” has received a national invention patent and is recognized as filling a domestic technological gap at a leading domestic level.

Key Features & Benefits

1. Smart RF Card Control – Uses high-frequency RFID technology (13.56MHz ±7kHz, compliant with ISO/IEC14443A) with a 32-bit unique serial number for each card. Contactless read/write operation ensures waterproof, moisture-proof, tamper-proof, abrasion-resistant, and anti-decryption performance. Card data can be stored for up to 10 years and endure 100,000 read/write cycles. Sensing distance: ≤15cm.

2. Dual Metering Modes – Supports both electricity-based billing (kWh) and time-based billing, offering flexible pricing options to suit different regional water management policies.

3. Two-Step Start Confirmation – Prevents accidental pump activation. First card swipe queries account information; a second swipe within 10 seconds starts the pump. Alternatively, a single extended swipe (approximately 5 seconds, with two beeps) can also start the pump.

4. Real-Time Field Inquiry – While one user is actively irrigating, other users can swipe their cards to check balance and usage information without interrupting the ongoing operation or affecting pump performance.

5. High-Visibility Digital Display – Uses large, red LED digital displays specifically chosen for excellent readability in bright outdoor sunlight, avoiding LCD visibility issues common in field conditions.

6. Power Theft Detection – Built-in real-time theft detection automatically shuts down the device if unauthorized power draw is detected, protecting both the system and the water user association's revenue.

7. Low Balance Alert – Configurable preset alert threshold. When the remaining balance falls below the set value, the system automatically shuts off the pump and prompts the user to recharge.

8. Unsettled Card Identification – On startup, the system displays the card ID of any unsettled transaction, simplifying management for both users and administrators.

9. Cumulative Billing Display – Displays the total accumulated metered amount for each controller, facilitating easy statistics and financial reconciliation for water management authorities.

10. 30-Second Delay Shutoff – After the user swipes to complete a session and stops the pump, the system remains ready for 30 seconds, allowing another user to immediately swipe and start a new session. This prevents frequent pump start/stop cycles, extending pump lifespan and reducing energy waste (configurable based on user needs).

11. Prepaid Billing & Auto Shutoff – Pre-collects water fees, automatically deducts charges based on actual usage, and cuts power when the balance reaches zero — eliminating billing disputes and collection hassles.

12. Lost Card Management – Historical record function enables balance inquiry for lost cards and reissuance of new cards, ensuring user funds are never lost.

13. Multi-User / Multi-Well Support – One card can be used on multiple wells (shared control), and multiple cards can be used on a single well (sequential queuing) — flexible enough for any village water management scenario.

14. Power Failure Data Protection – Automatic data saving during power outages ensures no data loss; operations can resume seamlessly when power is restored.

15. Anti-Interference & Queue Management – Prevents a second user from interfering with an active user’s session. When the system is in use, other users must wait in queue until the current session is completed and settled.

16. Remote Control Option – Supports long-range remote start/stop via handheld remote control (configurable). Users can swipe to start billing, operate the pump remotely, and then swipe again to settle charges — ideal for large fields where the controller is not within arm‘s reach.

Technical Specifications

Application Scenarios

The Well Irrigation RF Information Processor Series is widely deployed in:

• High-standard farmland construction projects

• High-efficiency water-saving irrigation initiatives

• Key small-scale water conservancy counties

• Land consolidation and agricultural development projects

• Medium- and low-yield farmland improvement

• Grain production capacity enhancement projects

• High-efficiency ecological agriculture parks

Proven Field Performance

• Trusted by over 700,000 water users across more than 4,000 villages

• Deployed in Xinjiang, Inner Mongolia, Henan, Hebei, Hubei, Jiangsu, Northeast China, and over 60 counties within Shandong Province alone

• Compliant with China National Standard GB/T 40119-2021 (primary drafter: Shandong Jintian)

• Shandong Jintian has participated in over 300 domestic bidding projects for water conservancy and agricultural irrigation

Whether you need a standalone well irrigation controller or a fully integrated village-wide irrigation management system, the Well Irrigation RF Information Processor Series offers the durability, intelligence, and field-proven reliability required for modern agricultural water management.

*23 years of water-saving irrigation innovation – from the pioneers of the enclosure-free irrigation model and primary drafters of China‘s national standard for RF card irrigation control systems.*