System and method for monitoring environmental conditions

Thermal measuring and testing – Temperature measurement – Composite temperature-related paramenter

Reexamination Certificate

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Details

C374S102000, C341S119000, C341S166000, C053S507000

Reexamination Certificate

active

07461973

ABSTRACT:
A system and method are disclosed for monitoring environmental conditions of a perishable product. The system includes an environmental sensor configured to sense one or more environmental conditions of the perishable product and an analog integrator in communication with the environmental sensor, the analog integrator being formed on a polymer substrate and including one or more tunable components. The system also includes a comparator in communication with the analog integrator and configured to change state when an output of the analog integrator reaches a selected threshold level, and a control module in communication with the comparator and the analog integrator. The control module is configured to control the operation of the analog integrator based on an output of the comparator.

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