Università degli Studi di Roma "Tor Vergata" Dipartimento di Ingegneria Civile ed Ingegneria Informatica Via del Politecnico 1 00133 Roma c.f. / P.IVA 12270181006
T-TagPassive RFID Temperature
sensors
RFID Tech: from Visual to Electromagnetic
Labeling
Electromagnetic access to data
RFID Tech: how it works
T-Tags: Temperature SensorsRFID TAGS (T-tags) are new generation wireless passive sensorswireless passive sensors used to pervasively measure temperature of people, objects, and environments.
WHAT DOES “PASSIVE SENSORS” MEAN?WHAT DOES “PASSIVE SENSORS” MEAN?
A passive sensor is a battery-less tag activated by a radiofrequency reader that communicates with it through an electromagnetic field.
The Reader’s job is to activate the tag and to decode the signal received from it.
However T-Tag sensors work in both passive (no battery required) and battery-assisted (BAP) mode and we can customize them in size and shape.
T-Tags are suited to be placed over any kind of surface including metals and even the human body to collect body temperature.
Because of their low cost, T-Tags can be moreover used in applications wherein a large number of sensors is required.
T-Tags: Temperature Sensors
T-Tags Features- Passive and BAP mode- Position and surface independent tags- Max read-distance from 0.5m (short-range reader, 0.25W)
up to 50m (long-range reader and BAP)- Operational/sensing range: -40°C to 64°C (85°C)- Resolution 0.25°C- Designed to operate in both FCC and ETSI bands- Weight: 10-30gr- Low Price- Reusable or single use- Customizable for harsh apps
System Architecture
Many T-tags spatially
distributed
A single portable/fixed RFID reader
Software for local/remote data analysis and storage:- Thermal Maps- Threshold detection
and Alarms
● Building Industry: T-Tag used to monitor buildings like houses, bridges, tunnels, and industrial plant.
● Large-Scale Retail Trade and Pharmaceutical Industry: T-Tags are used to monitor the cold-chain in food and pharma. Inserted into pharmacy refrigerators or thermal bags, they can be used for long term monitoring of perishable food or in clinical studies.
● Domotic systems: T-Tags integrated with modern domotic technologies, can be used to obtain a uniform air-conditioning, reducing energetic costs.
● Human Body Temperature monitoring: t-tags can also be used for wireless measures of human body temperature.
● In healthcare applications, for example, T-Tags may support the optimization of clinic procedures and improve patients and operators safety
T-Tags Applications
Real Life Example: Concrete maturation
Real life monitoring of a concrete block under maturation : T-tag is embedded in concrete and transmits internal temperature while concrete matures over time
Other Application fields:Thermal diagnostics
Industrial Process and energy efficiency
T-tags spread inside a satellite, to monitor thermal state of payload and critical components
RFID reader and antenna
RFID reader
T-tags spread in an industrial environment to monitor the temperature of different components of an automated machine
Huge reduction of wirings
Other Application fields:Tyre testing
T-tags embedded in the mould and/or glued over the tyre, to monitor temperature during tests as well as to serve for logistic purposes
