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Toilet management system and method for automatically adjusting flush water volume

Listed on
2026-10-28
Water-saving toilet management system based on ultrasonic content detection and neural network analysis

This technology is a toilet management system that uses sonic and ultrasonic sensors mounted on the toilet seat to measure the size of the contents in the bowl. A central server then calculates the required flush volume based on the wirelessly transmitted data and controls the water pressure regulator for each toilet.

While 30–40% of household water usage is attributed to toilets, conventional models flush the entire tank regardless of the amount of waste, leading to significant water waste. Furthermore, in high-density residential areas like apartment complexes, simultaneous usage can cause drops in water pressure, leading to frequent clogs.

This technology utilizes a neural network recognition model to compare data against training sets to determine the size of the contents and calculate the appropriate flush volume. If the pressure in the air-charged tank drops below a set threshold, an air intake component replenishes the pressure, while a solenoid valve regulates the flush duration. This system can be applied to sanitary facilities in apartment complexes, public restrooms, and large buildings, significantly reducing water consumption while preventing toilet clogs in low-pressure environments.

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Key Features:
  • A sensor component that detects contents inside the toilet bowl by vertically emitting sonic or ultrasonic beams from one side of the toilet seat, and a toilet control unit that generates size measurement data
  • A central server that receives size measurement data from each toilet via wireless communication, determines the size of the contents using a neural network recognition model, and transmits the required flush volume
  • A water tank charged with air, featuring a supply pipe and a water inlet pipe on the bottom, and an air intake component and pressure sensor on the top
  • A toilet control unit that activates the air intake component to supply external air into the water tank when the pressure sensor reading falls below a reference value

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Incheon National University
Jaehyun Park | Gundo Park | Jongmin Won | Hyun Lee | Jiwoo Lee | Gyeongsang Jeon
Document
Date of application:
2018-12-03
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Patent registration number:
10-2099971
Industry
environment•eco
Technology
Smart Factory•IoT
Artifical Intelligence
Country
Korea
Family Patent

N/A

Price
7000000
Fixed price
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