RFID tags used in toll roads

[per_lube]

Hi all,

What kind of RFID tags are used for the tags used in electronic toll collection in toll roads.?

What is the operating frequency of the tags?

cheers,
per_lube

 

[davenn]

you really should learn to use google

https://en.wikipedia.org/wiki/Radio-frequency_identification

cheers
Dave

 

[per_lube]

thanks davenn for your advice

What type of tags, (I mean active, passive, semi-passive...) are used in Australian toll roads?
What I can see from web is most of the tags are passive & being powered with the toll post reader device.

I'm wondering, can they grab enough power to transmit the ID, give a beep within the short time (when passing toll post with 100 km/h or more)?

cheers,
per_lube

 

[pranam77]

The RFID used for Road toll collection is usually a UHF chip operating on around 980 Mhz and will be a passive tag but capable of read and write at very high speeds even more than 100Kmph speed of the vehicle.