As plum rains and typhoons strike in succession, the race against time for flood prevention intensifies. During flood season, water conditions fluctuate rapidly, making every change in hydrological parameters—such as water level, flow rate, and velocity—critical.

Hikvision has integrated radar, video, AI, and other technologies to upgrade its digital flood prevention products, offering more precise, real-time, and effective monitoring for flood prevention early warning and decision-making.

Radar, Video, and AI Integration

Achieving More Accurate Monitoring of Water Levels

Continuous heavy rainfall increases the presence of floating objects. These "uninvited guests" flowing downstream, due to their size and thickness, can trigger false alarms in traditional water level monitoring systems. Furthermore, traditional methods cannot link videos in real-time, necessitating on-site checks and manual calibration of water level data, significantly impacting efficiency during flood season when time is of the essence.

Hikvision's radar water level observation products integrate millimeter-wave radar and video AI technology to address false alarms through multi-dimensional sensing, providing more accurate and efficient monitoring of river levels.

Millimeter-wave radar is resilient in extreme environments like rain, fog, and darkness. With a high-frequency narrow beam angle design, it requires minimal space and avoids interference from dams to radar signals. The filtering algorithm corrects water surface fluctuation errors in real-time, ensuring high-precision measurements of ±0.1mm.

In case of data anomalies, it simultaneously links to the corresponding on-site video, conducts AI intelligent detection of the water surface, accurately identifies abnormal events such as floating objects and passing ships, efficiently reviews and automatically eliminates false alarms, enhancing the accuracy of water level measurement.

Upgrading Virtual Water Gauge Technology

Ensuring Reliable Water Level Data During Flood Season

In scenarios like small and medium-sized rivers, reservoirs, and culverts, water gauges are commonly used for water level measurement. However, the flood season environment is fraught with variables. Sudden damage, overturning, or loss of water gauges can lead to abnormal measurement and reporting.

Based on video recognition of physical water gauges, the new generation of video water gauge balls innovatively upgrades virtual water gauge technology. A single calibration enables long-term effective monitoring. Accurate water level data can be obtained without a physical water gauge, ensuring that even if a physical water gauge malfunctions during flood season, water level measurement and reporting remain real-time, stable, and effective.

The image shows the test screen of the new generation of video water gauge balls. The yellow line segment represents the virtual water gauge scale, and the red line segment indicates the detected water level. It is evident that the virtual water gauge's detected value corresponds to the actual water level.

Low Power Consumption, No Dormancy

All-Weather Flow Velocity Measurement and Flow Calculation

During flood peaks or dam discharges, a usually calm river can suddenly become turbulent. More accurate monitoring of flow velocity and flow rate can provide valuable time for flood prevention deployment along the coast.

Hikvision's radar flowmeter employs Doppler radar technology to precisely measure flow velocity and calculate flow rate in real-time, with a flow measurement accuracy of ±0.01m/s. Paired with a new real-time low-power dome camera, it integrates flow velocity, flow rate, and video, offering a more comprehensive dimension of flood condition monitoring.

In remote outdoor scenarios like rivers, dams, and reservoirs, cameras typically adopt a dormancy mode to extend battery life. To ensure continuous video recording during flood season, this new product remains active throughout the day while maintaining low power consumption, keeping a vigilant eye on flood conditions in real-time. Under 25 frames per second for all-day intelligent monitoring, power consumption is reduced by 72% compared to ordinary low-power devices, meeting the demand for all-weather real-time monitoring during flood season.

Multi-Dimensional Data Integration

Supporting Scientific Research and Decision-Making

Beyond water level, flow rate, and velocity, Hikvision can also collect elements such as rainfall, water quality, and displacement using IoT sensing technology. All data can be seamlessly integrated with flood prevention-related platforms like water safety, GHD (Yunfan), urban management, and ISC, realizing the integration of hydrological, environmental monitoring, and video data.

Combined with technologies such as GIS, AR, and digital twins, various flood prevention information is managed on a single map, offering intelligent analysis and early warning, rapid linkage and response, supporting scientific research and decision-making, enabling precise decision-making, and aiding in efficient flood prevention command and dispatch work.

Every bit of precision in data adds another layer of safety during flood season. Hikvision's series of digital flood prevention products, with their accurate, efficient, and all-weather monitoring and early warning capabilities, can be applied to comprehensive flood prevention scenarios such as emergency command and dispatch, reservoir scheduling and embankment defense, meteorological early warning and trend research, urban waterlogging prevention and control, traffic safety assurance, and geological disaster prevention and control.