Can the car key still be used after being washed with clothes?
1 Answers
Car key can still be used after being washed with clothes. Working principle of remote key: When the owner enters the sensing area of the key system, as long as they touch the door handle, the identity recognition "key" they carry will receive the low-frequency signal sent by the car. If this signal matches the identity recognition information stored in the "key", the "key" will be awakened. After being awakened, the "key" will analyze the authentication command sent by the car and send corresponding signals, which are encrypted to enhance security. Basic components of remote key: Transmitter, consisting of a transmission switch, transmission antenna (keypad), integrated circuit, etc. It contains an identification code storage circuit and an amplitude modulation circuit, with a button-type lithium battery installed on the opposite side of the circuit. The transmission frequency is selected according to the radio standards of the country of use, and the transmission switch sends a signal each time it is pressed. Receiver, after the transmitter sends the identification code using shortwave modulation, it is received by the car's shortwave antenna and enters the shortwave high-frequency amplification processor of the receiver's electronic control unit through a distributor for demodulation, then compared with the demodulator's identification code; if it is the correct code, it is input into the control circuit to activate the actuator.