Radar Water Level and Rainfall Monitoring System

The Radar Water Level and Rainfall Monitoring System is a high-precision surface water level measurement and rainfall monitoring system featuring water surface fluctuation filtering. It employs a horn antenna design to reduce power consumption and supports a wide input voltage range, specifically engineered for unattended field applications in automatic weather stations. Measurements remain unaffected by atmospheric temperature, pressure, air density, wind, precipitation, or relative humidity, ensuring exceptional stability. Low-power and maintenance-free design. The product offers flexible operating mode configurations.

The superiority of radar measurement principles makes them suitable for the following working environments: Water level monitoring in lakes, rivers, reservoirs, open channels, wetlands, and tidal areas; Water level monitoring in areas prone to frequent water quality changes; Channels containing large amounts of floating debris and sediment; Locations with abundant aquatic plant growth; Solar-powered operations in remote wilderness areas; Regions prone to frequent flash floods.

The working principle is as follows: Radar pulses are emitted from the antenna of the radar water level sensor. The antenna receives pulses reflected back from the water surface and records the time (T). Since the propagation speed (C) of electromagnetic waves is a constant, the distance (D) to the water surface is calculated. The time from emission to reception is proportional to the distance to the water surface. This converts nanosecond-level time measurements to millisecond-level measurements, thereby enhancing measurement accuracy. With 55 measurements per second followed by digital filtering, the impact of water waves on results is minimized, yielding measurements equivalent to those taken in still water.

• Supports storage and retrieval of historical data; capable of retaining historical data for over 5 years.

• Displays multi-point water level records and enables nationwide wireless data transmission.

• Data collection intervals are customizable, supporting either one-minute or ten-minute intervals based on operational requirements.

• Configurable upper alarm thresholds trigger automatic alerts displayed as red indicators upon reaching preset values.

• Query results are convertible into multiple formats (tables, line graphs, bar charts).

• Features a rugged outdoor enclosure with an aesthetically pleasing design, corrosion resistance, and interference immunity.

• Incorporates comprehensive lightning protection and anti-interference safeguards.

• Supports data import/export functionality (Excel).

• Reliably operates in harsh outdoor environments with low power consumption, high stability, high accuracy, and unattended operation capability.

• Unaffected by atmospheric temperature, pressure, air density, wind, rainfall, or relative humidity.

• Unaffected by water contaminants or sediments.

• Requires no wave-proof well and has no impact on water flow.

• Unaffected by water quality changes.

• Measurement range up to 30 meters.

• Features water level and rainfall data acquisition, real-time clock, scheduled storage, parameter settings, and power failure protection for historical parameter data.

• Standard RS232/485 communication functionality, optional as needed, supports MODBUS communication protocol. Forms a monitoring system with the monitoring platform via 4G wireless remote transmission.

• Measurement accuracy reaches millimeter level.

• Continuous online data collection, powered by solar energy.

• Non-contact measurement method unaffected by floating debris.

• Low maintenance costs, simple installation and maintenance, long service life.

• Modular, open-architecture design for both hardware and software, enabling flexible combinations.

• Multiple power supply options including mains power, DC, and solar systems.