IOT News

In a mid-sized reservoir and its downstream irrigation area, various field devices have been installed, including rain gauges, water level sensors, flow meters, integrated measurement and control gates, piezometers, and video surveillance cameras. These devices are distributed across the dam area, spillway, and multiple main canal nodes, making manual meter reading extremely inefficient.

To achieve digital transformation of the reservoir and irrigation system, the core project requirements are:

Real-time remote monitoring of reservoir water level, inflow/outflow rates, dam seepage, gate status, and rainfall

Automatic alerts based on water level thresholds

Remote control of spillway gate opening to eliminate safety risks associated with manual operation

Provision of standardized hydrological data to higher-level flood control command centers and water resource scheduling platforms to support regional joint dispatch

Solution

WideIOT deployed its IoT gateways for water conservancy applications. The gateways collect data from water level sensors, flow meters, and piezometers via RS485, aggregate information from remote rain gauge stations and branch canal flow meters using LoRa wireless technology, and connect to video surveillance cameras and existing PLC control systems via Ethernet. The data is then transmitted to management platforms at the reservoir, irrigation area, and water resources authorities over 4G, enabling remote monitoring, alarming, management, control, maintenance, and data analysis.

Key Capabilities

Multi-Parameter Remote Telemetry

Real-time reporting of water level, flow rate, rainfall, seepage pressure, gate opening status, and live video. This creates a single-pane-of-glass view of reservoir operations, accessible remotely via mobile and computer devices.

Tiered Threshold Alarms

When water levels approach flood season limits, reach warning levels, or exceed design flood levels, the platform automatically notifies responsible personnel via pop-up alerts, SMS, and email, while also triggering local audible and visual alarms.

Remote Gate Control with Closed-Loop Feedback

Within defined permission management boundaries, operators can remotely adjust the opening of spillway and irrigation gates, monitor actual gate position and operating status in real time, and log all operation records for auditability.

Standardized Data Reporting

Data is packaged in compliance with the Ministry of Water Resources SL651 protocol and automatically reported to provincial/municipal hydrology centers and water resource scheduling systems, supporting multi-agency joint dispatch and data sharing.

Data Backfill and Resume Transmission

During network outages, the gateway automatically caches collected data. Once connectivity is restored, it fully transmits the cached data in chronological order, ensuring no loss of hydrological process records and maintaining data integrity and completeness.

Low Power Operation and Solar Compatibility

The gateway supports 9–35V DC power input as well as solar panel and battery connections, making it suitable for remote hydrological sites without grid access. It ensures long-term, stable operation with low power consumption.