Monitoring system

1. A monitoring system for monitoring an item in a predetermined area, the monitoring system in communication with a radio frequency identification (RFID) tag attached to the item, the RFID tag storing identification information of the item, the monitoring system comprising:

a RFID reader concealed and configured to read identification information from the RFID tag;

an infrared monitoring unit comprising a plurality of infrared sensors for sending infrared signals and receiving infrared signals reflected by the item;

an alarming unit configured to output an alarming signal; and

a controlling unit coupled between the RFID reader and the alarming unit, the controlling unit configured to receive the identification information from the RFID reader and control the alarming unit according to the identification information.

2. The monitoring system as claimed in claim 1 , wherein the RFID reader comprises at least one antenna communicating with the RFID tag, and a radiation range of the at least one antenna substantially covers the predetermined area.

3. The monitoring system as claimed in claim 2 , wherein the at least one antenna is an ultra high frequency (UHF) antenna.

4. The monitoring system as claimed in claim 1 , wherein when the item passes through the predetermined area and is detected by the plurality of infrared sensors, the plurality of infrared sensors output first monitoring data and transmit the first monitoring data to the controlling unit.

5. The monitoring system as claimed in claim 1 , further comprising a pyroelectric monitoring unit, wherein the pyroelectric monitoring unit comprises a plurality of pyroelectric sensors for detecting thermal radiation of the item.

6. The monitoring system as claimed in claim 5 , wherein when the item passes through the predetermined area and is detected by the plurality of pyroelectric sensors, the plurality of pyroelectric sensors output second monitoring data and transmit the second monitoring data to the controlling unit.

7. A monitoring system for monitoring an item in a predetermined area, the monitoring system in communication with a radio frequency identification (RFID) tag attached to the item, the RFID tag storing identification information of the item, the monitoring system comprising:

a RFID reader reading identification information from the RFID tag;

an infrared monitoring unit sending infrared signals and receiving infrared signals reflected by the item;

a pyroelectric monitoring unit detecting thermal radiation of the item;

an alarming unit outputting an alarming signal; and

a controlling unit coupled to the RFID reader, the infrared monitoring unit, the pyroelectric monitoring unit, and the alarming unit;

wherein the RFID reader transmits the identification information to the controlling unit, the infrared monitoring unit transmits first monitoring data to the controlling unit, the pyroelectric monitoring unit transmits second monitoring data to the controlling unit, and the controlling unit controls the alarming unit according to at least one of the identification information, the first monitoring data, and the second monitoring data.

8. The monitoring system as claimed in claim 7 , wherein the RFID reader comprises at least one antenna communicating with the RFID tag, the at least one antenna is buried in the predetermined area, and a radiation range of the antenna substantially covers the predetermined area.

9. The monitoring system as claimed in claim 8 , wherein the at least one antenna is an ultra high frequency (UHF) antenna.

10. The monitoring system as claimed in claim 7 , wherein the infrared monitoring unit comprises a plurality of infrared sensors disposed on two opposite sides of the predetermined area.

11. The monitoring system as claimed in claim 7 , wherein the pyroelectric monitoring unit comprises a plurality of pyroelectric sensors disposed on two opposite sides of the predetermined area.