Automatic Liquid Supply Device with Sensor-Based Spill Prevention

The system uses infrared sensors to automatically detect the presence of cups and liquid level sensors to monitor liquid levels, enabling the device to perform pouring operations autonomously without manual intervention. The controller automatically activates nozzles and controls liquid flow based on sensor feedback, achieving self-service operation that improves efficiency while keeping the interface simple.

The patent replaces manual mechanical pouring with an automated system using nozzles, flow switches, and electronic controllers. The mechanical action of hand-pouring is substituted by a controlled liquid delivery system that uses sensors and automated mechanisms to achieve precise, spill-free pouring, thereby improving productivity without requiring complex manual operations.

The system incorporates infrared sensors that detect cup presence and non-contact liquid level sensors that monitor liquid levels in real-time. This feedback is transmitted to the controller, which automatically adjusts nozzle operation and liquid flow to achieve precise pouring and prevent spills. The feedback mechanism enables accurate control without requiring overly complex mechanical systems.

The patent introduces a controller as an intermediary that coordinates between sensors, nozzles, and liquid flow. This centralized control unit processes sensor signals and manages the pouring operation, simplifying the overall system architecture while achieving high precision. The intermediary controller integrates multiple functions, reducing the need for complex direct connections between individual components.