Three-dimensional attitude based intelligent fish lead dynamic water depth measuring circuit and method

Abstract

The invention belongs to the technical field of hydrological data measurement and relates to a three-dimensional attitude based intelligent fish lead dynamic water depth measuring circuit and method. The intelligent fish lead dynamic water depth measuring circuit comprises a water depth pressure sensor, an attitude sensor, a CPU (central processing unit) circuit, a ZIGBEE circuit, a control switch, an antenna and an upper computer. The method includes that the water depth pressure sensor acquires water pressure and water temperature data; the attitude sensor acquires underwater fish lead dynamic attitude data to further obtain a current pitch angle, a roll angle and a course angle of fish lead according to a data settlement fusion algorithm; the water pressure and water temperature data and three-dimensional attitude angle data are encapsulated into a data packet which is then stored in the CPU circuit; the control switch is switched on to send the data to the upper computer through the ZIGBEE circuit and the antenna; the water depth data are corrected in the upper computer through three-dimensional attitude angles under dynamic conditions. The three-dimensional attitude based intelligent fish lead dynamic water depth measuring circuit and method are used for intelligent fish lead dynamic water depth measurement, and the measured water depth data are corrected in real time according to dynamic angles so as to realize dynamic accurate water depth measurement.

Description

technical field [0001] The invention relates to an intelligent lead fish dynamic water depth measurement circuit and method based on a three-dimensional attitude, and belongs to the technical field of hydrological data measurement. Background technique [0002] At present, in the field of hydrological data measurement technology, the depth of lead fish into the water is an important basis for flow monitoring. However, the sounding of the hydrological cableway is due to the fast lowering speed of the lead fish, the large deflection angle of the suspension cable of the wet rope and the dry rope, the large deflection angle of the cableway suspension cable, too many winding layers of the winch wire rope, and the sideways counter calibration is not performed before the measurement. , No sounding correction number calibration and other reasons lead to low sounding accuracy, inconvenient cableway measurement data collection, poor real-time performance, and it is difficult to obtain...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the present invention provides an intelligent lead fish dynamic water depth measurement circuit and method based on three-dimensional attitude, which is used to solve the problem of low accuracy of lead fish water entry depth data and data collection work existing in hydrological cable sounding. The shortcomings of low efficiency, lack of real-time data, and the low accuracy of the analog relative pressure sensor sounding circuit, high application environment requirements, large volume, inconvenient installation, and no consideration of the sensor installation position in dynamic errors, etc.

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