Intelligent toilet with FMCW (frequency modulated continuous wave) microwave distance-measuring induction function and detection method

Abstract

The invention discloses an intelligent toilet with an FMCW (frequency modulated continuous wave) microwave distance-measuring induction function and a detection method. The intelligent toilet comprises a toilet lid, a lid-turning driving mechanism, a flushing valve, a seat heating system, a toilet master controller and an FMCW microwave sensor. The FMCW microwave sensor judges the distance of a to-be-detected object according to frequency spectrum information of a signal, so that influences of microwave signal attenuation, caused by a sensor shell and a ceramic toilet body, on distance measurement accuracy is avoided effectively. By the FMCW microwave sensor, influences of persons in different shapes on distance judgment accuracy of the microwave sensor are eliminated, so that whether to open or close the toilet lid or heat a seat can be judged accurately. The FMCW microwave sensor can detect minor vibration, and minor actions such as breath and heartbeat of human bodies, so that finish time of urination of men can be judged, and automatic flushing can be realized. By the intelligent toilet with the FMCW microwave distance-measuring induction function, better user experience can beprovided.

Description

technical field [0001] This application relates to the field of FMCW microwave ranging technology, in particular to a FMCW microwave ranging sensing intelligent toilet and a detection method, which can detect the distance of the human body through the FMCW microwave sensor, so as to realize automatic flipping, closing, flushing or Seat heating function. Background technique [0002] With the improvement of people's quality of life, most people have higher and higher requirements for sanitary ware. As the toilet is one of the most frequently used sanitary ware, while people's demand for intelligent toilets is increasing, their performance requirements are also getting higher and higher. For example, users are more in need of an intelligent toilet with low probability of misoperation, stable performance, and high reliability that can measure distance accurately. This high-performance smart toilet automatically opens the lid or preheats the seat only when it detects that the ...

AI Technical Summary

Problems solved by technology

Because the Doppler microwave sensor can only detect the human body with a large range of motion, and when a man urinates in front of the toilet, because the human body's motion range is very small at this time, the Doppler microwave sensor cannot detect whether someone is standing In front of the toilet so it is impossible to tell if the urinating male has left and should flush

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