Noncontact type liquid level measuring device

Abstract

The invention relates to a noncontact type liquid level measuring device which comprises a urine processing cavity of an intelligent urine processing device, a water outlet pipeline, a noncontact type capacitance liquid level sensor, a connecting line for noncontact type capacitance liquid level sensor and an SCM (single-chip microcomputer), a water inlet pipeline and an SCM control part, wherein the noncontact type capacitance liquid level sensor and the water outlet pipeline are arranged on one side of the urine processing cavity; the water outlet pipeline is arranged on the lower part of the other side of the urine processing cavity; and the noncontact type capacitance liquid level sensor is connected to the SCM control part through the connecting line. The noncontact type liquid level measuring device can be used for measuring the level of flushing water inside the urine processing cavity in the intelligent urine processing device. The noncontact type liquid level measuring device has better stability and reliability.

Description

technical field [0001] The present invention relates to a non-contact liquid level detection device, which is used to solve the problem of detecting the liquid level of flushing water inside a urine and feces treatment cavity in an intelligent urine and feces treatment device. Background technique [0002] In the prior art, the detection method of the flushing water level inside the urine and feces treatment cavity in the intelligent urination and defecation treatment device is to use a pair of conductive stainless steel screws as electrodes, install the pair of electrodes in the appropriate positions in the cavity, and then use a lead wire. Connect the pair of electrodes to the controller. When the liquid level is insufficient, the electrode circuit is disconnected. When the liquid level reaches the electrode installation position, the electrode circuit is turned on. In this way, the controller can judge whether the liquid level reaches the specified height according to t...

AI Technical Summary

Problems solved by technology

[0003] The above method has the following disadvantages: First, the flushing water may splash onto the conductive electrodes, resulting in false conduction and affecting the stability of liquid level detection

Secondly, because the flushing water is mixed with feces and urine and other salty and corrosive substances, the conductive electrodes are bound to rust during long-term use, which affects the electrical conductivity, and may also cause water leakage from the electrode installation holes due to rust.

In addition, this method is easy to cause psychological burden to the user due to the exposure of the conductive electrode installation, which is not beautiful enough

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