Electromagnetic flow velocity flow rate measuring device based on real time attitude and measuring method thereof

Abstract

The invention relates to an electromagnetic flow velocity flow rate measuring device based on real time attitudes and a measuring method thereof, and belongs to the hydrology data measuring technologyfield; the measuring device comprises a pressure sensor, an electromagnetic flow velocity meter, an attitude sensor, a CPU circuit, a control switch, a LoRa circuit, an antenna and a host computer; the electromagnetic flow velocity meter gathers real time single point current speed; the pressure sensor gathers real time air pressure, water pressure and water temperature data; the attitude sensorgathers real attitude data of an underwater lead fish; the CPU circuit stores real time attitude data, pressure data and flow velocity data, and sends the data to the host computer through the LoRa circuit and the antenna; the host computer parses and fuses to obtain three dimensional attitude angle data and water depth data, and the flow velocity data is combined, thus calculating to obtain the current flow rate data. The method and device employ the electromagnetic flow velocity meter to measure the flow velocity, select the flow velocity data under stable states according to real time altitudes, thus accurately measuring flow velocity and calculating current flow rate; the measuring method and device are suitable for various complex water area environments.

Description

technical field [0001] The invention relates to a real-time attitude-based electromagnetic velocity flow measurement device and a measurement method thereof, belonging to the technical field of hydrological data measurement. Background technique [0002] At present, in the field of hydrological data measurement technology, water flow is the basic data reflecting the change of water volume in rivers, lakes, reservoirs and other water bodies, and is the most important hydrological feature of rivers. The traditional hydrological flow rate measurement method relies on the impact of water flow on the propeller of the rotor type current meter, and calculates the flow rate data through the functional relationship between the rotation rate of the propeller and the flow rate. However, the rotor-type current meter has a precise mechanical structure and contains rotating moving parts, which has high requirements for the measurement environment. In natural rivers, sediment blockage, aqu...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the present invention provides a real-time attitude-based electromagnetic velocity flow measurement device and its measurement method, which are used to solve the problem of low data accuracy of traditional rotor-type flowmeters and data collection work when measuring flow velocity in hydrological cables. Low efficiency, inconvenient equipment maintenance, and the electromagnetic current meter swings and rotates with the lead fish, resulting in large errors in flow rate data, and solves the problems of large errors in water depth data obtained by traditional methods when measuring water depth in hydrological cables, and harsh application environments.

Images