【JD-SW2】， Shandong Jingdao Optoelectronics has been deeply cultivating hydrological equipment for ten years.

Accurately monitoring rainfall and water levels in complex natural environments in the wild is of crucial importance for preventing natural disasters and making rational use of water resources. The field online radar rainfall and water level monitoring station has become a powerful assistant for field hydrological monitoring due to its precise radar measurement and non-contact maintenance free characteristics.

Radar precise measurement: providing reliable data support

The advantages of radar measurement principle

The field online radar rainfall and water level monitoring station uses advanced radar technology to measure rainfall and water level. For water level measurement, the radar emits high-frequency electromagnetic waves, which are reflected back to the radar receiver when they encounter the water surface. By accurately measuring the round-trip time of electromagnetic waves and combining it with their propagation speed in the air, the distance between the radar and the water surface can be accurately calculated, thus obtaining the water level height. This measurement principle has significant advantages compared to traditional contact measurement methods. It is not affected by factors such as water fluctuations and floating debris, and can accurately measure water levels in various complex outdoor water environments. For example, in mountainous rivers where the water flow is turbulent and there are often floating objects such as branches, traditional measurement methods may be affected, while radar measurement can stably obtain accurate water level data.

In terms of rainfall measurement, radar utilizes the scattering characteristics of raindrops on electromagnetic waves. After the electromagnetic waves emitted by the radar encounter raindrops, some of the electromagnetic waves will be scattered back. By analyzing the intensity, frequency, and other information of scattered echoes, radar can accurately calculate the size, velocity, and quantity of raindrops, and thus determine the amount of rainfall. This measurement method does not rely on the mechanical structure of the traditional rain gauge, and avoids measurement errors caused by sundries, mechanical failures, etc. Even in severe weather conditions, such as rainstorm, sand and dust, it can also accurately measure rainfall.

High precision measurement performance

The field online radar rainfall and water level monitoring station has high-precision measurement capabilities. In water level measurement, its accuracy can reach the millimeter level. This is crucial for some application scenarios that are sensitive to water level changes, such as in wetland ecological protection, where small changes in water level may affect the living environment of wetland organisms. Monitoring stations can accurately capture these subtle changes, providing precise data for wetland ecological research and protection.

In terms of rainfall measurement, the monitoring station also performed well. It can accurately distinguish different rainfall intensities, whether it is light rain, moderate rain, or heavy rain, and can accurately measure rainfall. This high-precision measurement capability greatly improves the reliability of data when conducting meteorological and hydrological research in the field, providing a solid data foundation for climate model establishment, flood warning, and other work.

Real time data monitoring and transmission

The field online radar rainfall and water level monitoring station can monitor real-time rainfall and water level data, and transmit the data to remote terminals in a timely manner. It quickly collects data at preset time intervals to ensure the timeliness and continuity of the data. The collected data is transmitted in real-time to the monitoring center or relevant management department's terminal devices through wireless communication technologies such as GPRS, 4G, etc. Staff can view real-time data at any time through devices such as computers and mobile phones, and timely grasp the changes in rainfall and water level in outdoor water areas. This real-time data monitoring and transmission function enables quick response and corresponding measures to be taken in the face of sudden weather changes or hydrological events, such as issuing warnings in a timely manner before floods and organizing personnel evacuation.

Contactless and maintenance free: adaptable to harsh outdoor environments

Characteristics of contactless measurement

The outdoor online radar rainfall and water level monitoring station adopts a non-contact measurement method, which gives it a unique advantage in harsh outdoor environments. During water level measurement, the radar does not come into direct contact with the water body, avoiding problems such as equipment corrosion and damage caused by long-term immersion in water. Whether in industrial wastewater discharge areas containing corrosive substances or in coastal waters with high salinity, radar can work normally without being affected by the chemical properties of the water.

In terms of rainfall measurement, non-contact measurement avoids the mechanical wear and blockage problems caused by traditional rain gauges due to raindrop impact and debris accumulation. In the wild, debris such as leaves and insects often enter the rain gauge, affecting measurement accuracy, while radar rainfall measurement does not have these problems and can always maintain stable measurement performance.

Maintenance free design concept

In order to adapt to the unmanned working environment in the field, the field online radar rainfall and water level monitoring station adopts the maintenance free design concept. The equipment was designed with full consideration for reliability and stability, reducing the use of vulnerable components. For example, the antenna of the radar is made of high-strength and weather resistant materials, which can resist the erosion of bad weather, such as strong wind, rainstorm, ultraviolet ray, etc. At the same time, the equipment has automatic diagnosis and fault warning functions. When abnormal situations occur, it can promptly send alarm information to maintenance personnel, informing them of the type and location of the fault for timely repair. This maintenance free design greatly reduces the maintenance cost and workload of the equipment, ensuring that the monitoring station can operate stably in the field for a long time.

Adapt to complex outdoor environments

The wild environment is complex and varied, including factors such as terrain and climate. The outdoor online radar rainfall and water level monitoring station can adapt to various complex outdoor environments. In mountainous areas with complex terrain, it can be measured at suitable locations through flexible installation methods, without being limited by terrain. In terms of climate, monitoring stations can work normally in both high-temperature and arid desert areas and cold and humid mountainous areas. It has good temperature adaptability and moisture resistance, and can maintain stable measurement performance under J-end temperature and humidity conditions, providing reliable guarantee for field hydrological monitoring in different regions.

The field online radar rainfall and water level monitoring station provides an efficient and reliable solution for field hydrological monitoring work with the characteristics of precise radar measurement and non-contact maintenance free. It plays an important role in preventing natural disasters, protecting the ecological environment, and making rational use of water resources. With the continuous development of technology, it will be more widely applied in the field of field monitoring.