A circuit and implementation method for opening the door by swiping the card at the door of the entrance and exit and calling the elevator

Abstract

The invention discloses a card-swiping door opening and elevator calling circuit for an entrance and exit machine and an implementation method of the circuit. The card-swiping door opening and elevator calling circuit comprises an entrance and exit machine, a relay J1, an elevator calling button, a door lock, a door opening button, a DC power supply, a diode D1, a stabilivolt ZD1 and a resistor R1, wherein the positive pole of the DC power supply is sequentially connected in series with an entrance and exit machine output switch, the door opening button and the door lock and then accessed into the negative pole of the DC power supply; and a normally open contact of the relay J1 is connected in parallel with the elevator calling button through a wire. The card-swiping door opening and elevator calling circuit is characterized in that one end of a coil of the relay J1 is accessed into the DOOR+ terminal of the entrance and exit machine output switch, the other end of the coil of the relay J1 is connected with the negative pole of the diode D1 and one end of the resistor R1; the positive pole of the diode D1 is connected with that of the stabilivolt ZD1; the negative pole of the stabilivolt ZD1 is accessed into the DOOR- terminal of the entrance and exit machine output switch; and the other end of the resistor R1 is connected with the negative pole of the power supply. The implementation method is characterized in that the stable voltage value of the stabilivolt ZD1 is smaller than the difference value obtained by subtracting the forward voltage drop of D1 from 80% of the rated voltage of the relay J1.

Description

technical field [0001] The invention belongs to the field of intelligent building engineering, and relates to a circuit for enabling the owner to call an elevator while swiping a card to open the door at the entrance and exit of the building on the first floor, thereby reducing the waiting time for the elevator. Implementation. Background technique [0002] With the improvement of urban people's living standards and the acceleration of the pace of life, the demand for life is not only material satisfaction, but the comfort and convenience of humanized experience. In order to better reflect the humanized design, in many high-end buildings, the video intercom system has been improved, and the function of calling the elevator by the door station has been added. The specific implementation of this function is to add the function of calling the elevator by swiping the card to the door machine of the elevator lobby on the first floor and the basement of each floor, that is, when ...

AI Technical Summary

Problems solved by technology

However, at present, the door phone calls the elevator and usually sends the electrical signal to the elevator machine room. Generally, the call to the elevator is on the first floor, but the elevator machine room is on the top floor. Therefore, this solution has long wiring, complicated construction, and signal attenuation. It is also not conducive to later maintenance

For example, the application number is 201510941344.7, which describes a circuit and implementation method for opening the door by swiping the card at the entrance and exit and calling the elevator: it overcomes the problems and shortcomings of long wiring, complicated construction, and signal attenuation, and proposes to use DC relays and door locks. Connect to the signal output by swiping the card of the entrance / exit door (generally the signal output by swiping the card of the entrance / exit door is a dry contact signal), that is, connect to the DOOR-end of the dry contact output after swiping the card of the entrance / exit door, and connect the power supply to the door of the entrance / exit The DOOR+ end of the output dry contact, the normally closed contact of the DC relay is connected in parallel with the elevator call button on the current floor (the signal collected by the elevator call button is generally a dry contact signal) through a connection line, and the dry contact output by swiping the card of the door machine at the entrance and exit It is in the closed (on) state, so that the power is introduced into the DC relay and the door lock branch respectively. When the card is swiped to the door machine at the entrance and exit, the output dry contact is disconnected, so that the power is introduced into the DC relay and the door lock branch. The access is cut off, and the door is opened by swiping the card, and at the same time, the call to the elevator is simulated through the normally closed contact of the DC relay

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