Circuit for controlling underwater wireless communication of lead fish based on double water inflow signals, and control method thereof

Abstract

The invention relates to a circuit for controlling underwater wireless communication of a lead fish based on double water inflow signals, and a control method thereof, and belongs to the field of hydrological detection devices. The circuit provided by the invention comprises an LM358 water surface switch circuit, an MS5837 pressure sensor circuit, an STM32L1 microprocessor and a LoRa wireless communication circuit; and the LM358 water surface switch circuit and the MS5837 pressure sensor circuit are connected with the STM32L1 microprocessor, and the STM32L1 microprocessor is connected with theLoRa wireless communication circuit. According to the circuit provided by the invention, the MS5837 pressure sensor circuit is installed at the bottom of the lead fish, the LM358 water surface switch circuit is installed at the same height location parallel to a rotor flow meter. The circuit provided by the invention introduces a double-signal detection method of a water pressure detection signal and a water inflow signal, controls the power supply of the wireless communication module, and solves the problem of unstable power supply caused by the jitter of the water inflow signal and the problem of easy flow measurement interruption caused by the excessive power consumption of the wireless communication module.

Description

technical field [0001] The invention relates to a circuit and a control method for controlling underwater wireless communication of lead fish based on dual water entry signals, and belongs to the technical field of hydrological detection equipment. Background technique [0002] At present, common water surface switches are mechanical float switches or water conductance switches. However, there is a certain frictional resistance between the movable parts of the mechanical float switch, and it is easy to foul and corrode. The water conductance switch is two signal wires fixed on the tail of the lead fish, and the two wire ends are kept at an appropriate distance. When the two wire ends touch the water surface at the same time, the circuit conduction is given to the water Signal. The existing water conductance switch is easily affected by waves or humid air with a large salt content, and is prone to misconduct, which leads to inaccurate and misoperation of the lead fish to me...

AI Technical Summary

Problems solved by technology

It mainly solves the following two problems: 1. The problem of unstable power supply caused by the jitter of the water entering signal caused by factors such as waves; 2. Misconduction caused by factors such as waves or humid air with a large salt content The communication module consumes power too fast, which causes the current measurement interruption problem

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