Rainwater Condition Monitoring & FT-SW2 System: Empowering Water Resource Management and Disaster Prevention

Rainwater conditions refer to the real-time status and changing trends of hydrological elements such as precipitation, water level, and flow. They are the core basis for water resource management and disaster prevention and mitigation. Precipitation replenishes surface and groundwater sources in the forms of rainfall and snowfall, forming runoff that flows into rivers, lakes, and reservoirs.

Water level reflects the depth of water bodies, and flow represents the amount of water passing through per unit time. Both are directly related to flood control safety and water supply guarantee. The monitoring of rainwater conditions relies on equipment such as rain gauges and water level gauges, and the data is collected and analyzed through transmission systems.

Dramatic changes in rainwater conditions during the flood season may cause floods, while the dry season is prone to drought. Through real-time monitoring, forecasting, and early warning, measures such as regulation and storage, and flood discharge can be taken in advance. Paying attention to rainwater conditions not only helps in flood control and drought relief but also is of great significance to agricultural irrigation, ecological protection, and the rational utilization of water resources.

In terms of water level monitoring, common sensors include pressure-type and radar-type ones. Pressure-type water level sensors work based on the principle that liquid pressure is proportional to water depth, and calculate the water level by measuring the pressure on the sensor. Radar-type water level sensors, on the other hand, utilize the reflection characteristics of radar waves. They emit radar waves to the water surface and determine the water level according to the time difference of the reflected waves. They can perform non-contact measurement, have the advantages of high precision and strong stability, and are widely used in water level monitoring scenarios such as rivers and reservoirs.

Rainfall monitoring depends on rain sensors, among which the tipping bucket rain sensor is a typical representative. It uses a tipping bucket to catch rainwater. When the rainfall reaches a certain amount, the tipping bucket flips, triggering a counting device to record the rainfall, and can accurately measure the rainfall volume per unit time.

Data acquisition and transmission equipment such as RTU (Remote Terminal Unit) is responsible for collecting data from various sensors and transmitting the data to the monitoring center via GPRS, 4G/5G, or other means. In the monitoring center, professional software platforms receive and display data from various monitoring stations in real-time, presenting the real-time changes and historical trends of data such as water level, rainfall, and flow with intuitive charts and curves, helping managers quickly grasp the situation of water and rain conditions.

To meet the needs of efficient and accurate water and rain condition monitoring, the FT-SW2 Water Level Monitoring System is recommended. This is a fully automatic hydrological online monitoring system based on microwave technology, which can measure water level and rainfall in channels simultaneously. It uses advanced K-band planar radar technology to measure the water level and rainfall of water bodies in a non-contact manner, and calculates and outputs real-time cross-sectional flow and cumulative flow according to the built-in software algorithm. The device can be used for non-contact flow measurement in rivers, irrigation canals, underground drainage networks, flood warning and other occasions.

It has low power consumption and can adapt to long-term operation; its small size facilitates installation and arrangement; it has high reliability and strong stability; it is easy to maintain, reducing later maintenance costs. The measurement process is not affected by factors such as temperature, sediment, river pollutants, and floating objects on the water surface. It is suitable for various complex measurement conditions, not affected by corrosion and foam, and can output measurement data of flow velocity, water level, and flow. The flow velocity and water level adopt a planar array radar antenna with a built-in measurement angle function, making installation convenient. It is also equipped with user-friendly configuration software, which can configure parameters according to actual needs to adapt to different usage conditions, and is not disturbed by changes in water vapor, temperature, and pressure in the atmosphere. In terms of data display and management, it supports the CS architecture software platform. Users can directly observe through mobile phones and PC browsers without additional software installation. It also supports multi-account and multi-device login, with real-time data display and historical data display dashboard functions. It adopts cloud servers and cloud data storage, which are stable, reliable, easy to expand, and load-balanced. It also supports functions such as SMS alarm and threshold setting, map display to view device information, data curve analysis, and data forwarding (such as HJ-212 protocol, TCP forwarding, http protocol, etc.).