Types of car keys commonly used today

The remote control key means that the door can be opened and locked remotely without inserting the key key into the lock hole. Its biggest advantage is that it can be unlocked and locked remotely and conveniently regardless of day and night.
Fundamental
A weak radio wave is emitted from the key, the radio wave signal is received by the car antenna, the signal code is recognized by the electronic controller ECU, and then the actuator (motor or electromagnetic manager circle) of the system performs the unlocking / locking action. The system is mainly composed of a transmitter and a receiver.
Keyless entry system
Car keyless entry system, referred to as PKE (PASSIVE KEYLESS ENTER, but car manufacturers have different names for their products), this product uses the world's most advanced RFID radio frequency technology and the most advanced vehicle identification code identification system, the first application The development plan of miniaturized and low-power RF antenna, and successfully integrated the remote control system and keyless system, the traditional vehicle circuit protection is inherited, and the dual radio frequency system and dual anti-theft protection are truly realized, providing maximum convenience for the owner And safety.
The "keyless entry system" is not a traditional key, but a key with an intelligent electronic chip. Honda, Toyota, Nissan, Mercedes, BMW and other mid-to-high-end brands have adopted "keyless" systems. When you step into the designated area, the system will recognize that you are an authorized driver and automatically open the door. Today's smart keys also “lock” the key itself, preventing you from locking yourself out.
It should be noted that vehicles with a keyless entry function may not have a keyless start function.