Detecting circuit of closestool device and its detecting method

Abstract

The invention discloses a detecting circuit of a closestool device and its detecting method. The detecting circuit comprises at least one first capacitance sensor, at least one second capacitance sensor, a capacitance sensing module, a first oscillator, a data conversion module, a gesture control module and a water flushing module; the first capacitance sensor and the second capacitance sensor send the sensed capacitance signals to the capacitance sensing module, and the capacitance sensing module detects a first oscillation frequency of the capacitance signal; the data conversion module outputs a digital signal to the gesture control module, and the gesture control module sends the control signal to the water flushing module. The detecting method can control the water flushing of the closestool device through the gesture of a human body. Through mounting multiple capacitance sensors on the closestool device, the change of an outside environment is sensed automatically, gestures and other actions of the human body are exactly judged, and the operation of controlling the flushing closestool by the dynamic gesture of the human body is realized.

Description

technical field [0001] The invention relates to the technical field of toilet intelligent control, in particular to a detection circuit of a toilet device based on capacitive induction and a detection method of the circuit. Background technique [0002] In the prior art, in order to automate the work of the toilet body, the traditional technology is to turn on the electromagnetic valve through the infrared sensor switch on the toilet. The infrared sensor switch is mainly composed of pyroelectric infrared sensors and power supplies IC control. Because the human body has a constant body temperature, it emits infrared rays of a specific wavelength. The passive infrared probe works by detecting the infrared rays emitted by the human body. The infrared rays emitted by the human body gather on the infrared sensing source. The infrared induction source usually uses a pyroelectric element, which will lose its charge balance when it receives a change in the infrared radiation temper...

AI Technical Summary

Problems solved by technology

[0004]However, the infrared signal emitted by the existing infrared sensor switch is a pointing signal in a specific direction, which can only detect whether there is human body information in front of the toilet, and needs to expose the infrared sensor Head, and can not distinguish between large and small flushing, the sensing distance is insufficient, and the user experience is poor

In addition, infrared signals cannot penetrate ceramics, so holes need to be set on the ceramic structure or arranged outside the ceramic structure to work normally, which increases the complexity and cost of design and manufacturing

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