Intelligent liquid drip rate monitoring and early warning systems

The principle of ultrasonic distance measurement is used by the system to achieve a non-contact measurement of liquid level on the simulated infusion bottle. Infrared Emitting Diode is used to monitor the speed of infusion. The signal which has been handled appropriately can be treated to achieve the high level, the remaining liquid volume of the infusion bottle, infusion speed and the remaining time, which can be showed on the voice prompts and digital display, and the designed system can offer sound, light, voice alarm at the same time when the infusion is nearly completed. What´s more, in order to monitor the infusion points centralized and convenient, the target system also provides extensible wireless network solutions. The result shows that the system works stable, and it has the features of low cost, high precision, practicability.