Intelligent river channel flow velocity measuring device and measuring method

Abstract

The invention discloses an intelligent river channel flow velocity measuring device and measuring method. The device comprises a main body used for supporting and installing the measuring device; a water flow direction sensing mechanism, used for obtaining the direction of water flow; a rotatable speedometer, used for adjusting the direction according to the direction of the water flow obtained by the water flow direction sensing mechanism, so that a flow measuring propeller of the rotatable speedometer is aligned to the flow velocity direction of the water flow, and the flow velocity at the position is measured; a traction mechanism, used for adjusting the depths of the water flow direction sensing mechanism and the rotatable speedometer underwater; and a PLC, connected with the water flow direction sensing mechanism, the rotatable speedometer and the traction mechanism. According to the water flow direction sensing mechanism, the direction of water flow thrust can be obtained by measuring the magnitude and direction of force borne by the rod on the swing ball, the speed measuring instrument can be rotated to adjust the direction of the flow measuring propeller according to the water flow direction, and therefore the measured flow speed is more accurate; and the device can measure the flow velocities of water flows in different depths of the river channel.

Description

technical field [0001] The invention belongs to the field of river flow velocity measurement, and in particular relates to an intelligent river flow velocity measurement device and a measurement method. Background technique [0002] With the continuous development of human economy and society, people's demand for water inside and outside rivers and lakes is increasing day by day. At the same time, the problem of water pollution is increasing, which makes water resources more and more tense. At the same time, with the deterioration of climate, disasters such as floods occur frequently. There is an extremely important necessity for water level, flow velocity and flow monitoring. Real-time monitoring of river channels is conducive to grasping the amount of available water resources, early warning of floods and other disasters, and ensuring the safety of people's lives and property. [0003] The common method for measuring the average flow velocity of a river section in enginee...

AI Technical Summary

Problems solved by technology

However, the current flow meter cannot be automatically adjusted to adapt to different water depths, and it cannot always be kept on the same straight line with the direction of the flow velocity in rivers with different water depths, which will cause limitations in the use of the flow meter and inaccurate measurement results.

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