Method for monitoring objects with transponders

A system for tracking environmental exposure of an object comprising

• a. a radiofrequency identifier comprising
• 1) an antenna for transmitting and receiving radiofrequency energy;
• and
• 2) an integrated circuit chip connecting with said antenna, said chip having a memory;
• b. a physically separate sensor capable of measuring an environmental condition as an environmental parameter;
• c. a reader/writer for reading data from the radiofrequency identifier by transmitting radiofrequency energy thereto and receiving radiofrequency energy therefrom, wherein the sensor transmits the environmental parameter to said reader/writer which writes the ammeter to the memo of the chip;
• d. an electronic data management system comprising:
• 1). a data memory for storage of data;
• 2). a microprocessor for performing operations on said data;
• and
• 3). a signal output for outputting a signal relating to the data or the outcome of an operation on the data;
• and
• e. a network computer system, able to access data from said electronic data management system, comprising
• 1). a data memory for storage of data;
• 2). a microprocessor for performing operations on said data;
• and
• 3). a signal output for outputting a signal relating to the data or the outcome of an operation on the data;
• whereby said system operates by a method for tracking environmental exposure of an object comprising:
• f. selecting the object;
• g. associating said radiofrequency identifier with said object,
• h. exposing the object to an environmental condition;
• i. measuring the environmental condition as an environmental parameter with said physically separate sensor;
• j. writing said environmental parameter to said data memory of the chip of said radiofrequency identifier by transmitting radiofrequency energy thereto;
• and
• k. either, transferring said environmental parameter data from the memory of said radiofrequency identifier-, or transmitting said environmental parameter data from the reader/writer, to said electronic data management system.