What is a Car Key ID?

[OJosephine]

Car Key ID is the registration number of the key. Through this ID, car key users can look up parameters such as the manufacturer and operating frequency of the key. Additionally, the ID may be required when the key is lost or when duplicating a key. Car remote keys are wireless communication anti-theft devices that require manufacturer registration for use. The ID key fob is a read-only, contactless IC card. It is powered by induction from a card reader and reads the card number stored in the chip's EEPROM. The card number is written once before the card is sealed and cannot be altered afterward. Being passive and contactless are the key features of this chip. The radio frequency interface circuit is the critical core technology, receiving RF energy from the card reader to generate power and clock for the chip, and employing techniques like phase-shift keying and load amplitude modulation to achieve wireless communication between the card and the reader.