The wireless remote control function of the central lock means that you can open and lock the door remotely without inserting the key into the lock hole, and its biggest advantage is that no matter day or night, there is no need to find the lock hole, and it can be unlocked (open the door) and locked (lock the door) remotely and conveniently. The basic principle of remote control is that a weak radio wave is emitted from the owner's side, the radio wave signal is received by the car antenna, the signal code is identified by the electronic controller ECU, and then the actuator of the system (motor or electromagnetic manager circle) performs the action of opening\/closing. The system is mainly composed of two parts: transmitter and receiver.
1. Transmitter The transmitter is composed of a transmitting switch, a transmitting antenna (key plate), an integrated circuit, etc. It is integrated with the signal sending circuit on the key plate. From the identification code storage loop to the FSK modulation loop, which is miniaturized by the use of a single-chip integrated circuit, a lithium battery with a snap button type is installed on the opposite side of the circuit. The transmission frequency is selected according to the radio wave goodness of the country of use, and the 27, 40, and 62MHz frequency bands can be generally used. The transmitting switch transmits signals once every time the press button is pressed.
2. The receiver transmitter sends out the identification code using FM modulation, receives it through the FM antenna of the car, and demodulates it using the FM high-frequency increase processor entering the receiver ECU to compare with the identification code of the decoded regulator; If the code is correct, input the control circuit and make the actuator work. The door lock remote control system is usually composed of a portable transmitter and a receiver in the car, and the identifiable signal sent from the transmitter is received and decoded by the receiver, driving the door lock to open or lock, and its main role is to facilitate the driver to lock the door or open the door. Users can protect their cars by setting the lock unlocking password of the remote ECU, and alarm when the door is illegally opened. At present, most of the systems use radio waves or infrared rays as the identification signal teaching medium, there are two key type and whole type. When the modern lock receives the correct code signal, the control wave receiving circuit is triggered to the receiving time plus 0.5s, and then returns to the standby state. If the input code signal does not match, the receiving circuit will not be triggered. Base in 10min there are more than 10 code signal input does not match, the lock thinks that someone is trying to steal the car, so stop receiving any signals, including receiving the correct code signal, in this case must be mechanically inserted by the owner with the key door to open the door. The recovery of signal reception can be started by key ignition and the main switch of the remote control door lock system can be turned off and then opened. If the door is not opened within 30 seconds after the door is unlocked by the remote control mechanism, the door will be automatically locked.
It means a smart key that can achieve remote control. By connecting with a mobile phone or other smart devices, users can use their mobile phones to remotely open or close the car's locking system, start or turn off the engine, control the temperature and sound inside the car.
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This smart key allows users to manage the vehicle more easily and quickly, improving the safety and convenience of the car. It is the perfect combination of modern technology and traditional keys, bringing a more convenient car experience.