Wireless drink container for monitoring hydration

A method of tracking consumption, by a user, of a liquid disposed within a container assembly, the container assembly comprising:

• a container defining a cavity to hold a liquid;
• a removable cap configured to be coupled to the container to form a watertight seal that prevents liquid from leaking out of the cavity, the removable cap defining a watertight enclosure such that liquid in the cavity is prevented from flowing into the watertight enclosure;
• a liquid flow sensor coupled to the removable cap and configured to measure a flow of the liquid out of the cavity;
• an accelerometer, mechanically coupled to the removable cap, to measure an orientation of the container;
• a processor, operably coupled to the liquid flow sensor and the accelerometer and disposed within the watertight enclosure, to estimate a change in an amount of the liquid in the cavity based on the flow of the liquid out of the cavity and the orientation of the container;
• a cap sensor, operably coupled to the processor, to sense a status of the removable cap;
• and
• a light source, operably coupled to the processor, to provide a visual indication prompting a user to drink from the container;
• the method comprising:
• (A) measuring, with the liquid flow sensor, the flow of the liquid out of the cavity;
• (B) measuring, with the accelerometer, the orientation of the container;
• and
• (C) estimating a change in the amount of the liquid in the cavity based on the flow of the liquid out of the cavity measured in (A) and the orientation of the container measured in (B)
• (D) emitting light from the light source operably coupled to the processor and disposed in the removable cap, the light prompting the user to drink the liquid in the container.

A container assembly comprising:

• a container defining a cavity to hold a liquid;
• a removable cap configured to be coupled to the container to form a watertight seal that prevents the liquid from leaking out of the cavity and defining a watertight enclosure such that liquid in the cavity is prevented from flowing into the watertight enclosure;
• a liquid sensor coupled to the removable cap and configured to measure a flow of the liquid out of the cavity;
• an accelerometer, mechanically coupled to the removable cap, to measure an orientation of the container;
• a processor, operably coupled to the liquid sensor and the accelerometer and disposed within the watertight enclosure, to estimate a change in an amount of the liquid in the cavity based on the flow of the liquid out of the cavity and the orientation of the container;
• a visual indicator array, operably coupled to the processor and disposed in the removable cap, configured to emit a glow through at least a portion of the container prompting a user to drink from the container;
• and
• a display, operably coupled to the processor and disposed on the removable cap, to provide a text indication to the user.