Radio-Frequency Identification (RFID)
Definition - What does Radio-Frequency Identification (RFID) mean?
Radio frequency identification (RFID) is a method of utility location that uses radio waves to read information stored on a tag attached to a pipeline. If properly incorporated into the utility system it will help future generations to easily detect utilities. RFID chips are used to tag new services and are programmed with information about the service, its depth and exact location. The tag is attached securely to the utility line to ensure that the information recovered is accurate.
Specialized RFID detecting tools may be essential to detect these utilities.
Trenchlesspedia explains Radio-Frequency Identification (RFID)
An RFID system has two parts: a tag embedded with a transmitter and a receiver, and a reader that emits a signal using an antenna. The tag that has its unique serial number for the purpose of identification also has two parts, i.e. a microchip that stores information and processes it, and an antenna that can transmit and receive signals. When a tagged utility has to be located, a reader with a two-way transmitter-receiver, connected to a RFID computer program, is made to emit a signal to the tag with the help of the antenna.
The tag responds to the signal by relaying information stored in its memory. This technique is very useful for accurate identification of utility because it also includes information regarding what the pipeline is carrying.