Liquid consumption tracker

摘要

Provided is a sensor operative to track changes in a liquid level of a hand-held liquid container, the sensor comprising: an ultrasonic liquid-level sensor configured to indicate a liquid level of a liquid in a hand-held liquid container, wherein the ultrasonic liquid-level sensor is capable of indicating the liquid level when the surface of the liquid is less than 20 centimeters away from the ultrasonic liquid-level sensor; a radio transmitter; and a processor configured to draw power from a portable power source, receive liquid-level indications from the ultrasonic liquid-level sensor, and cause the radio transmitter to transmit data indicative of changes in the liquid level.

主权项

1. A sensor operative to track changes in a liquid level of a hand-held liquid container, the sensor comprising:
an liquid-level sensor configured to indicate a liquid level of a liquid in a hand-held liquid container; a radio transmitter; a processor configured to draw power from a portable power source, receive liquid-level indications from the liquid-level sensor, and cause the radio transmitter to transmit data indicative of changes in the liquid level; and a buffer memory, wherein the processor is configured to:
obtain a plurality of time-stamped indications of levels of the liquid;store the plurality of time-stamped indications of levels of the liquid in the buffer memory;establish a wireless connection with a computing device via the radio transmitter;retrieve the time-stamped indications of levels of the liquid from the buffer memory; andconvey the time-stamped indications of levels of the liquid to the computing device via the wireless connection.