The temperature control system is able to:

• collect, record and display the surrounding temperature and the period during which it infringes the acceptable limit.
• collect, record and display the movements inside the facilities and between the operating sites (traceability)
• manage the lot number
• verify the correctness of materials and products for the current production and/or packaging step

The Cold Chain system allows complete temperature control of materials and products because it covers the whole production process, beginning from the delivery of materials in the warehouse, to transport of final products to the customer.
Every step is recorded inside the system.

For every material and product, the system records the temperatures which fall outside the programmed range of temperature, and the time.

The Cold Chain system uses RFID technology.

In particular, for this project, special RFID tags are used. These are semi-passive tags with an integrated temperature sensor which allows the monitoring ofthe temperature in a programmable measurement interval.

This temperature information is collected by an RFID reader and can be processed afterwards according to the user’s need.

The used tags are credit-card sized RFID labels that work at 13,56 MHz, which is considered the “universal” frequency because it can be used world-wide.

Thanks to these RFID tags, the system is able to record the time during which the temperature strays outside the programmed range.

The tag records both the time during which the temperature is outside the programmed range and

the maximum temperature reached during this time.