This technology features a sensor mounted inside the toilet seat that emits sound or ultrasonic waves vertically to measure the volume of waste. A central server receives this data wirelessly, calculates the appropriate amount of flush water, and sends the command back to the toilet, which then adjusts its water pressure control unit to release only the necessary amount of water.
Toilets account for 30–40% of household water usage, but conventional models waste water by flushing the entire tank regardless of whether the waste is solid or liquid. Conversely, in high-density housing like apartments, simultaneous usage can cause water pressure drops, requiring multiple flushes to clear waste, which paradoxically increases water consumption.
This system uses a pressurized tank equipped with a pressure sensor and an air intake unit; if internal pressure drops below a threshold, it draws in external air to maintain flushing pressure. Solenoid valves on the supply and water lines open for precise durations based on server signals to control discharge. A neural processing unit in the central server uses deep learning to analyze waste volume data from multiple toilets, building a database for optimized flushing. Pressing a urine-specific switch disables the sensor and automates water replenishment via a level sensor. Ideal for apartment bathrooms, highway rest stops, public restrooms, and large commercial facilities, this system ensures water efficiency while preventing clogs and redundant flushing caused by low pressure.
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