The present invention relates to an wireless communication device and
method for identifying a container. The device includes a wireless
communication device for transmitting information regarding the
container. The container includes an outer wall forming an enclosed
interior chamber for containing contents, such as solid, liquid, and/or
gaseous materials. The container also includes an opening through which
the container contents are distributed. A valve assembly is positioned
over the opening for controlling the flow of contents from the container.
The wireless communication device is mounted within the valve assembly,
and preferably within the ball. The wireless communication device
communicates information regarding the container and/or its contents to
an interrogation reader. The temperature associated with the container
and/or its contents may be determined by various techniques including
thermal contact between the temperature sensor and the container,
measuring the discharge rate in a discharge capacitor associated with the
wireless communication device, and determining the maximum energy
absorption frequency of the wireless communication device to correlate it
to temperature. The liquid level of the container may be determined by
employing liquid level sensor techniques.