Real-time robust tampering detection of products using piezoelectric containers

A system comprising:

• a piezoelectric container;
• and
• a signature generator that generates a first piezoelectric signature of the piezoelectric container and a second piezoelectric signature of the piezoelectric container,
• wherein the piezoelectric container comprises sealed contents,
• wherein the first piezoelectric signature is determined in-part by an electrical impedance of the sealed contents within the piezoelectric container,
• wherein a unique identifier of piezoelectric signature is further determined by the sealed contents within the piezoelectric container,
• wherein a piezoelectric transducer is attached to the piezoelectric container or is embedded into the piezoelectric container, and
• wherein the first piezoelectric signature and the second piezoelectric signature are each dependent on a physical state of the sealed contents.

A method comprising:

• attaching a piezoelectric transducer to a piezoelectric container or embedding a piezoelectric transducer into the piezoelectric container;
• generating a first piezoelectric signature of a piezoelectric container that is determined in-part by an electrical impedance of sealed contents contained within the piezoelectric container and determined in-part by sealed contents within the piezoelectric container;
• generating a second piezoelectric signature of the piezoelectric container;
• and
• comparing the first piezoelectric signature with the second piezoelectric signature to determine whether the piezoelectric container has been tampered with,
• wherein the first piezoelectric signature and the second piezoelectric signature are each dependent on a structural state of the piezoelectric container and a physical state of the sealed contents in the piezoelectric container.

A system comprising:

• a computing device;
• and
• a comparator in communication with the computing device, wherein the comparator compares a first piezoelectric signature of a piezoelectric container that is determined in-part by an electrical impedance of sealed contents contained within the piezoelectric container and determined in-part by sealed contents within the piezoelectric container with a second piezoelectric signature of the piezoelectric container to determine whether the piezoelectric container has been tampered with,
• wherein a piezoelectric transducer is attached to the piezoelectric container or is embedded into the piezoelectric container, and
• wherein the first piezoelectric signature and the second piezoelectric signature are each dependent on a structural state of the piezoelectric container.