Radio Frequency Identification
Selasa, 30 Desember 2008
RFID is the abbreviation of Radio Frequency Identification. Simply defined as the effort Identification objects using radio frequency.
There are 3 components that are required in an RFID system, the RFID Tag, RFID reader and RFID midleware. RFID tag is a micro-transmitter placed on the object to be identified. The form of the various tags in accordance with the functionality that you want to achieve. Tags on the market that have shaped bracelet, cards, buttons, and others. RFID tags are classified based on the frequency of work, there is a Low Frequency (LF) Modulation, MF, UHF and microwave. Tag next classification method is based on updating the data. There are read only, read and write and write once. Last is the classification tags based power transmission mode is active tags and passive tags. On a ration power due to internal, passive because the resources taken from the transmission wave induction elektromagnetik reader.
The second component is the RFID reader or often called interogerator. Function to read and detect the presence of RFID tags on the distance bacanya. Data to be read and forwarded to midleware to be processed as needed. In selecting reader 2 things must be considered. The first problem with the tag reader kompatabilitas, because not all the tags will match with the reader, there are spouses of each. Second consideration is the distance read reader. Reader cheap may only have read the near distance. Reader expensive distance will have read very much especially when the tag is used bertipe active.
The second component is midleware. In fact midleware only because the software is located in the middle is often referred to midleware. Its duty is to make the data read by the RFID reader. Normal for a complete RFID package expensive, RFID midlewarenya already included. But it can also midleware designed in accordance with the needs banyka programming language. Collaboration with the database and network connection capabilities into additional value that are easy to crystallize.
The last part will discuss the function. RFID can be applied in many areas that require identification capabilities. Being tracking object identifier component, as an e-card that can be enabled to pass-toll, bus ticket or access control card. For tracking goods, small children, pets and so on.
