Waterlogging sensor and rust-proof method for waterlogging sensor probes

Abstract

The invention provides a waterlogging sensor and a rust-proof method for waterlogging sensor probes. According to the waterlogging sensor, the first probe of the waterlogging sensor is connected witha first IO interface in a microcontroller unit (MCU) of the waterlogging sensor, and the second probe of the waterlogging sensor is connected with a second IO interface in the MCU, wherein output states of the first IO interface and the second IO interface in the same period are complementary, the output states comprise high level output and low level output, and during the adjacent periods, the output state of the first IO interface and the output state of the second IO interface are alternated between high level output and low level output; and in the process of water entry probing in the same period, the first probe and the second probe communicate, and electronic backflow is formed. According to the waterlogging sensor and the rust-proof method, electronic losses of the two probes arecompensated in an electric quantity consuming mode to prolong the service life of the waterlogging sensor probes and decrease the rusting probability so as to solve the problem that stainless steel probes are still rusted when being in water for a long time.

Description

technical field [0001] The invention relates to the field of electronic equipment, in particular to a water immersion sensor and a method for preventing rust of a water immersion sensor probe. Background technique [0002] The water immersion sensor is based on the principle of liquid conduction, and uses a metal probe to detect the presence of water. Since the water immersion sensor often works in a humid environment, as the use time increases, the metal probe of the water immersion sensor will often be rusted. [0003] In order to improve the service life of the water immersion sensor, stainless steel is mostly used as the material of the metal probe at present. Although the time of rusting has been delayed, there is still the problem of rusting when exposed to water for a long time. Contents of the invention [0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. [0005] For this reason, the first ob...

AI Technical Summary

Problems solved by technology

Since the water immersion sensor often works in a humid environment, as the use time increases, the metal probe of the water immersion sensor will often rust.

[0003] In order to improve the service life of the water immersion sensor, stainless steel is mostly used as the material of the metal probe at present. Although the time of rusting has been delayed, there is still the problem of rusting for a long time when exposed to water.

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