Keyless entry system for automobile

Keyless entry system for automobile

  • CN 104,442,702 B
  • Filed: 07/28/2014
  • Issued: 07/28/2020
  • Est. Priority Date: 07/28/2014
  • Status: Active Grant
First Claim
Patent Images

1. A keyless entry system for a vehicle, the system comprising:

  • the intelligent vehicle key comprises a first storage module, a first processing module, a first positioning module, a first cellular mobile communication module and a first short-distance wireless communication module;

    the vehicle-mounted equipment is connected with the ignition system and controls the door lock central control system, and comprises a second processing module, a second positioning module, a second cellular mobile communication module and a second short-distance wireless communication module, wherein the second cellular mobile communication module is in binding communication with the first cellular mobile communication module;

    a mobile communication server establishing a communication link with the first cellular mobile communication module;

    when the vehicle is flamed out, the second processing module acquires a flameout signal of an ignition system, controls the second positioning module to acquire positioning data of a vehicle parking position according to the flameout signal, and then sends the positioning data to the mobile communication server through the second cellular mobile communication module;

    the first cellular mobile communication module acquires vehicle parking position information from the mobile communication server and sends the vehicle parking position information to the first processing module for processing, the first processing module stores the vehicle parking position information in the first storage module, meanwhile, the first positioning module sends the position information of the vehicle intelligent key to the first processing module, and the first processing module analyzes and calculates the distance between the vehicle intelligent key and the vehicle parking position according to the position information of the vehicle intelligent key and the vehicle parking position information;

    when the distance between the intelligent key of the vehicle and the parking position of the vehicle is smaller than a preset distance threshold value, the first processing module transmits search instruction information to the second cellular mobile communication module through the first cellular mobile communication module, the second processing module controls the second short-distance wireless communication module to be opened and searches the first short-distance wireless communication module according to the search instruction information provided by the second cellular mobile communication module, the second processing module verifies a secret key sent by the first short-distance wireless communication module after the second short-distance wireless communication module searches the first short-distance wireless communication module, and when the verification is passed, the second processing module controls the door lock central control system to open the door lock;

    when a vehicle is ignited, the second processing module acquires an ignition signal of the ignition system, the second processing module controls the second cellular mobile communication module to send a control signal to the first cellular mobile communication module according to the ignition signal, and after the first cellular mobile communication module receives the control signal and outputs the control signal to the first processing module, the first processing module controls the first positioning module to be in a standby and dormant state according to the control signal;

    the intelligent vehicle key further comprises a first acceleration sensor used for acquiring a vibration signal of the intelligent vehicle key, the first processing module acquires the vibration signal detected by the first acceleration sensor and controls the first positioning module to be released from standby dormancy, and when the first acceleration sensor does not detect the vibration signal within a preset time period, the first processing module controls the first positioning module to be in standby dormancy;

    the intelligent vehicle key further comprises a first key and a second key, wherein the first key is used for triggering the first honeycomb mobile communication module to send an instruction signal to the second honeycomb mobile communication module;

    the second processing module receives the instruction signal output by the second cellular mobile communication module, and controls the second short-distance wireless communication module to be started and execute searching of the first short-distance wireless communication module according to the instruction signal;

    after the second short-distance wireless communication module searches the first short-distance wireless communication module, the second processing module controls the door lock central control system to open the door lock;

    the second key is used for triggering the first honeycomb mobile communication module to send an instruction signal to the second honeycomb mobile communication module;

    the second processing module receives the instruction signal output by the second cellular mobile communication module and controls the door lock central control system to open the door lock according to the instruction signal;

    the door lock further comprises a button arranged on a vehicle door and connected with the vehicle-mounted equipment, the second processing module acquires a door closing signal of the door lock central control system, and simultaneously, after the second processing module acquires a pressing signal of the button, the second processing module controls the second short-distance wireless communication module to search the first short-distance wireless communication module, wherein,when the second short-distance wireless communication module searches the first short-distance wireless communication module, the second processing module controls the door lock central control system to close the door lock;

    when the door lock is in a closed state and the vehicle door is in a closed state, the second processing module acquires a pressing signal of the button and controls the second short-distance wireless communication module to search the first short-distance wireless communication module according to the pressing signal;

    after the second short-distance wireless communication module searches the first short-distance wireless communication module, the second processing module controls the door lock central control system to open the door lock;

    the second processing module acquires a door closing signal of the door lock central control system, and controls the door lock central control system to close the door lock if the second short-distance wireless communication module does not search the first short-distance wireless communication module within a preset time period;

    the second processing module acquires a flameout signal of the ignition system and controls the second positioning module to be in standby and dormant according to the flameout signal;

    or the second processing module acquires an ignition signal of the ignition system and controls the second positioning module to release from the standby dormancy according to the ignition signal;

    after the second short-distance wireless communication module establishes a communication link with the first short-distance wireless communication module, the second short-distance wireless communication module verifies the secret key sent by the first short-distance wireless communication module, and after the verification is passed, the second processing module controls the door lock central control system to open or close the door lock.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×