An online rainfall monitoring system and monitoring method

Abstract

The invention discloses an online rainfall monitoring system and a monitoring method, and relates to the technical field of precipitation monitoring. The rainfall on-line monitoring system of the present invention includes a water receiving unit, a rainwater receiving unit, a self-drainage flushing unit, a liquid level sensor, a control unit and a communication unit; the bottom of the water receiving unit is connected to the top of the rainwater receiving unit; The self-draining flushing unit is connected to the side of the rainwater receiving unit for draining the rainwater in the rainwater receiving unit; the liquid level sensor is arranged at the bottom of the rainwater receiving unit; the liquid level sensor, the self-draining flushing unit and the communication unit Both are connected with the control unit, and the communication unit is used for data interaction with the outside. While preventing system blockage, the present invention also solves the problem of continuous and accurate measurement of heavy rainfall intensity and rainfall intensity, thereby solving the problem of long-term online, stable, reliable, and high-precision rainfall monitoring from light rain to heavy rain.

Description

technical field [0001] The invention relates to the technical field of precipitation monitoring, in particular to an online rainfall monitoring system and monitoring method. Background technique [0002] Precipitation information is the focus of hydrology, meteorology and agricultural departments. Accurate monitoring of rainfall and determination of rainfall intensity in different regions are prerequisites for water resource utilization, flood warning, ecological and hydrological regulation, and guidance of agricultural production. [0003] There are many types of existing rain gauges, including the tipping bucket rain gauge required by the national standard. This rain gauge is divided into 0.1mm, 0.2mm, 0.5mm and 1mm according to the resolution. The meteorological department of our country mostly uses 0.1mm double The tipping bucket rain gauge, the hydrological department mostly uses a 0.2mm single tipping bucket rain gauge. The structure of the tipping bucket rain gauge i...

AI Technical Summary

Problems solved by technology

The structure of the tipping bucket rain gauge is relatively simple, but the measurement error is relatively large when the rainfall is strong or weak, and it is easy to block, and the mechanical flipping structure is easily damaged

Another kind of siphon rain gauge is suitable for manual observation, but it needs to empty the water storage container frequently, the operation is more complicated, and errors will occur when emptying, and it is also prone to blockage

The piezoelectric rain sensor is a new type of rain gauge, but it is easily affected by the wind speed and direction, the measurement error is large, and the measurement result is unreliable

[0004] At this stage, there is a lack of long-term online, stable, reliable, and high-precision rainfall measurement methods and equipment, and a new online rainfall monitoring system is urgently needed to meet the high-precision, fast-response rainfall measurement requirements of my country's hydrology, meteorology, and agricultural departments.

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