crankymessiah wrote:
] ] Since restaurants often make much of their profits on
] ] drinks, it is critical for servers to offer refills in a
] ] timely fashion. We propose wireless liquid level sensing
] ] glassware to aid in this task. Specially instrumented
] ] glassware detects fluid levels via a high-resolution
] ] capacitance measurement. A coil embedded in the table
] ] inductively couples power to the glasses, and provides a
] ] path for data exchange. Our prototype glass uses a
] ] standard microprocessor and a small number of passive
] ] components, making it extremely inexpensive.
]
] Brilliant. With the time this would save me trying to get some
] service I could probably drink another pint.

I was thinking about building one of these to see how it worked. There are plans online.