Access control method for an area accessible to persons, in particular for a room closed off by means of a door

Access control method for an area accessible to persons, in particular for a room closed off by means of a door

  • CN 1,905,392 A
  • Filed: 07/25/2006
  • Published: 01/31/2007
  • Est. Priority Date: 07/28/2005
  • Status: Active Application
First Claim
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1. , a kind of control enters the method in the place of zone that the people can enter particularly being closed by door (1), has at least two communication units that are used to transmit and receive identification code, confirmation code and enter sign indicating number, wherein, said method comprising the steps of:

  • A) with the first predetermined transmitting power identification code is transmitted at least one second communication unit (20) from least one first communication unit (10);

    B) check identification code by second communication unit (20);

    C) if the inspection of identification code is passed through, confirmation code is transmitted into first communication unit (10) from second communication unit (20) with second transmitting power that is lower than first transmitting power;

    D) will enter sign indicating number and be transmitted into second communication unit (20) from first communication unit (10);

    E) enter sign indicating number by second communication unit (20) inspection;

    AndF) pass through freedom of entry if enter the inspection of sign indicating number.

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