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Device for automobile safety

  • US 8,723,697 B2
  • Filed: 01/09/2012
  • Issued: 05/13/2014
  • Est. Priority Date: 06/09/2011
  • Status: Expired due to Fees
First Claim
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1. A device for automobile safety, comprising an RF antenna (JP1), an RFID module, a GSM unit, a data processing unit (U1), a control unit (U2) and automobile circuits, wherein,(i) the RF antenna (JP1) provides power to the RFID module in a wireless manner, and meanwhile receives an analog signal from the RFID module, and transmits the received analog signal to the data processing unit (U1) through a voltage drop circuit;

  • (ii) the data processing unit (U1) is connected with the control unit (U2) via a communication circuit, after receiving the analog signal input from the RF antenna (JP1), the data processing unit (U1) is subjected to filtration and converts the analog signal into a digital serial signal to be transmitted to the control unit (U2) via the communication circuit, and the control unit (U2) controls the status of the data processing unit (U1) through the communication circuit;

    (iii) the control unit (U2) is connected with a first relay (RL1) and a second relay (RL2) respectively through a first drive circuit and a second drive circuit, after receiving the digital serial signal sent by the digital processing unit (U1), the control unit (U2) obtains the identity information by a decoding process and then compares said identity information with the identity information pre-stored in the control unit (U2), if said two are identical, the identity shall be regarded as legal, the control unit (U2) controls the first relay (RL1) to be closed via the first drive circuit;

    if said two are different, the identity shall be regarded as illegal, and the control unit (U2) controls the first relay (RL1) to be opened via the first drive circuit;

    (iv) the GSM unit is adapted to process a GSM signal, the GSM unit exchanges data with the control unit (U2) in a serial communication mode;

    the user sends an anti-theft state activation or release instruction, in the form of a short message, to the GSM unit through a service center, after receiving the instruction, the GSM unit transmits in the serial communication mode the instruction to the control unit (U2) for resolving the instruction received, if it is an anti-theft state activation instruction, then the control unit (U2) controls the second relay (RL2) to be opened through the second drive circuit;

    if it is an anti-theft state release instruction, the control unit (U2) controls the second relay (RL2) to be closed through the second drive circuit; and

    (v) the automobile circuits are connected in series with the relays (RL1, RL2), and the automobile is only normally started when both relays are closed.

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