Water flow tracing real-time monitoring system and speed measuring method

Abstract

The invention discloses a water flow tracing real-time monitoring system and a speed measuring method. The water flow tracing real-time monitoring system comprises a water flow tracing ball, and the water flow tracing ball comprises a positioning module, a communication module, a control module, a power supply module and a spherical waterproof shell. The positioning module is used for regularly orirregularly obtaining the position and time data of the water flow tracing ball, the control module is used for caching the positioning data and the time data, the communication module is used for regularly or irregularly sending the positioning and time data to the cloud platform monitoring system, and the spherical waterproof shell floats on the water surface at a certain immersion ratio. The water flow tracing ball is low in manufacturing cost, long in endurance time, simple in speed measurement operation, high in automation degree and capable of better adapting to measurement of surface flow velocity and flow fields of extreme scenes such as embankments, flood peaks, bay flow fields, tidal zone boundaries and tidal flow boundaries of tidal rivers, bidirectional jet flow of entrance water channels, storm surge and the like and water areas with special terrains. The invention belongs to the technical field of hydrological data measurement.

Description

technical field [0001] The invention relates to the technical field of hydrological data measurement, and relates to a water flow tracing real-time monitoring system and a velocity measuring method. Background technique [0002] Water velocity is an important parameter to be obtained when carrying out hydrological observations on water bodies such as rivers, lakes and seas. At present, there are various river water flow velocity measurement instruments in the water conservancy industry. The existing technology usually uses instruments such as buoys, rotor flow meters, hand-held radar velocimeters, and acoustic Doppler profile flow meters to measure water flow velocity. The traditional buoy measurement technology needs to set the buoy at a specific position on the water surface, use geometric methods to calculate the water flow velocity, the measurement position is limited, and the efficiency is low; in recent years, the buoy has been improved by combining GPS satellite posit...

AI Technical Summary

Problems solved by technology

The traditional buoy measurement technology needs to set the buoy at a specific position on the water surface, use geometric methods to calculate the water flow velocity, the measurement position is limited, and the efficiency is low; in recent years, the buoy has been improved by combining GPS satellite positioning technology and Internet of Things technology The flow velocity measurement method has made great progress, but there are still some limitations in flow velocity measurement and cost efficiency; the rotor flow meter can only measure the water flow velocity of a specific near-shore water body, and it needs carrier tools such as boats or steel cables to measure the flow velocity far away from the river bank. Generally, hand-held radar velocimeters can only measure the water velocity within 50m near the shore, and the application range is limited, so it is difficult to measure the flow velocity of medium and large rivers; the acoustic Doppler profile velocity meter is expensive and requires the help of ships or steel cables It can only be measured with other carrier tools, and the measurement cost is relatively high, so it is not suitable for measurement occasions where there is a possibility of instrument loss, such as embankment breaks and floods.

The above-mentioned flow velocity measurement instruments have their own advantages and are suitable for different surveying and mapping scenarios and purposes, but they also have certain limitations, such as expensive equipment and high monitoring costs, etc. Real-time monitoring of flow rate and accurate measurement over a wide range

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