Low-power-consumption control system of water quality monitoring buoy

Abstract

The invention relates to a low-power-consumption control system of a water quality monitoring buoy. The low-power-consumption control system comprises a power supply and a load power switch switching module, the load power switch switching module comprises a first load power supply switch and a second load power supply switch, and the power supply comprises a first power supply and a second power supply; the input end of the first load power supply switch is connected with the output end of the first power supply, and the output end of the first load power supply switch is connected with a first water quality detector; and the output end of the second load power supply switch is connected with the input end of the second power supply, and the input end of the second power supply is connected with a second water quality detector. Different power supply switching schemes can be selected according to water quality detection instruments with different capacitive loads, so that reliability is preferential, and meanwhile, low power consumption is considered; and the influence of switching of a large capacitive load water quality detection instrument on system power supply voltage fluctuation can be reduced as much as possible, reliable transmission of data is guaranteed, and the system can operate reliably.

Description

technical field [0001] The invention relates to the technical field of marine instruments, in particular to a low power consumption control system of a water quality monitoring buoy. Background technique [0002] Water quality monitoring drifting buoys can work long-term and covertly at sea. They are used to collect moving objects in water and environmental noise information under various sea conditions, and send the processed data to the ground receiving station through satellites, which has important utilization value. [0003] The existing technology focuses on the low power consumption power management circuit of the buoy, and the design reliability of the load power supply switching circuit is insufficient. Generally, switching between DC-DC and load power supply is performed uniformly, or switching is performed uniformly before the power chipset. [0004] Adopt a unified switching scheme between DC-DC and load power supply. During the application process, DC-DC is alw...

AI Technical Summary

Problems solved by technology

However, if the switching scheme that is uniformly switched before the power supply chipset is adopted, it is difficult to avoid that there will be a larger load equivalent capacitance at the back end than other switching schemes during the application process. Sometimes, it is easy to lower the front-end power supply voltage. In extreme cases, it will cause the entire system to reset and restart, and even cause data error code loss, etc.

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