CN109292561B

CN109292561B - Circuit for opening door, calling elevator and lighting based on POS (point of sale) machine and implementation method

Info

Publication number: CN109292561B
Application number: CN201710609354.XA
Authority: CN
Inventors: 潘磊; 石亮; 陈韬; 王长宝; 凌青华; 孙安龙; 张海洋; 孙林
Original assignee: Jiangsu University of Science and Technology
Current assignee: Jiangsu University of Science and Technology
Priority date: 2017-07-25
Filing date: 2017-07-25
Publication date: 2020-11-17
Anticipated expiration: 2037-07-25
Also published as: CN109292561A

Abstract

The invention discloses a circuit for opening a door and calling an elevator and lighting based on a card swiping machine and an implementation method thereof, wherein the circuit comprises a call signal receiving control module, an input control module and a display control module, wherein the call signal receiving control module is connected with the call signal output module through an external connecting line; the output call signal module comprises a power supply anode, a door opening button, a door lock and a cathode, wherein the power supply anode is sequentially connected in series with an entrance and exit doorway machine switch, a door opening button and the door lock to a cathode, the power supply anode is sequentially connected in series from a D1 end, a D2 end to a Q1 high-potential end, a Q1 control electrode is connected in series from a R1 end to the power supply cathode, a Q1 low-potential end is connected with the anode of the call signal receiving control module through a connecting line, and the power supply cathode is connected with the cathode of; the circuit is connected with an anode connected with the DOOR-end of an entrance/exit DOOR phone switch D3, and a D3 cathode connected with a Q1 control electrode. The method is characterized in that when the elevator in the same floor is called by swiping a card at the entrance machine to open the door at night, if the elevator hall illuminating lamp is not started, the elevator hall illuminating lamp and the acousto-optic control switch of the elevator hall illuminating lamp are sounded and turned on in a close distance, so that the sound of intentionally sounding and turning on the elevator hall lamp in a remote distance is reduced.

Description

Circuit for opening door, calling elevator and lighting based on POS (point of sale) machine and implementation method

Technical Field

The invention belongs to the field of intelligent building engineering, and particularly relates to a circuit and an implementation method for realizing calling an elevator and lighting while an owner swipes a card to open a door at a first floor entrance/exit entrance machine of a building, so that the elevator waiting time is reduced and the lighting of an elevator hall is started in advance.

Background

Along with the improvement of the living standard of people in cities and the acceleration of the life rhythm, the requirements on the life are not only satisfied on materials, but also comfortable and convenient for humanized experience. In order to better embody the humanized design, the visual intercom system is improved in a plurality of high-end buildings, and the calling function of the doorway machine is increased. The elevator calling function is added to the elevator hall door machine on the first floor of the residence and each floor of the basement, namely, the owner enters the door and swipes the card to open the door on the door machine, and gives a signal to the elevator calling button all the way, so that the elevator calling is realized in advance, the time is saved for the owner, the elevator is effectively used to the greatest extent, and the energy utilization rate is improved. However, the elevator called by the doorway machine at present usually transmits an electric signal to an elevator machine room, the elevator called by the doorway machine is on the first floor, but the elevator machine room is on the top floor, so that the scheme is long in wiring, complex in construction, and prone to signal attenuation, and later maintenance is not facilitated. In the prior art, a circuit after the output of an entrance/exit doorway machine is reconstructed, for example, a circuit based on a card swiping machine door-opening linkage elevator and an implementation method thereof, which are disclosed in application number 201610003479.3, record: a PNP type triode Q, a resistor R and a relay J of a normally open contact are additionally arranged; the connection relation of the original door lock opening and closing branch is kept unchanged: namely, the DOOR + end of the output switch of the entrance/exit DOOR phone is connected with the anode of the direct current power supply, the DOOR-end of the output switch of the entrance/exit DOOR phone is connected with the anode of the DOOR lock after being connected with the DOOR opening button in series, and the cathode of the DOOR lock is connected with the cathode of the direct current power supply. The emitting electrode of the triode Q is connected with the DOOR + end of the output switch of the entrance/exit gate machine, the base electrode of the triode Q is connected with the DOOR-end of the output switch of the entrance/exit gate machine, the collecting electrode of the triode Q is connected with the coil of the relay J in series and then connected with the negative electrode of the direct-current power supply, the normally-open contact of the relay J is connected with the elevator call button on the same floor in parallel, and the base electrode of the triode Q is connected with the negative electrode of the direct-current power supply in series. From the realization: when the entrance/exit entrance machine is opened by swiping a card, the elevator is called at the same floor. The problems and the defects of long wiring, complex construction and signal attenuation of the original scheme are overcome. A design that seems perfect, but has fatal defects: when the entrance and exit doorway machine punches a card to open the door, the output switch of the entrance and exit doorway machine is disconnected, the triode Q is conducted and saturated, the relay J is attracted, and the normally open contact generates a connection signal to the elevator call button to call the elevator, so that the elevator call function is realized; however, at the moment, the base electrode of the triode Q is connected with the DOOR-end of the output switch of the entrance/exit DOOR phone, the base electrode current of the triode Q is not limited by the resistor R of which the base electrode is connected in series with the negative electrode of the direct-current power supply, but is controlled by the resistor R and the DOOR lock connected in series with the DOOR opening button in parallel, the base electrode current of the triode Q is controlled together, the resistance of the DOOR lock is far smaller than the resistor R, which is determined by the working characteristics of the DOOR lock, at the moment, due to the existence of the DOOR lock, the current flowing through the base electrode of the triode Q is far larger than the maximum current capable of being borne by the base electrode of the triode Q, the triode. The circuit and the realization method based on the POS machine door-opening linkage elevator with application number 201610003479.3 are obtained by comprehensive analysis, and the conclusion is that the output switch of the entrance/exit door machine is disconnected:

when the base of the triode Q can bear the current required by the door lock, namely the triode Q can not be damaged:

firstly, saturating a triode Q: a coil of the relay J is electrified, a normally open contact of the relay J is switched on, and a trunk contact signal is output to an elevator call button to call the elevator, so that the elevator call function is realized;

the door opening button is pressed down, and the door lock is powered off to open the door;

the door lock can be opened without power loss because the door opening button is not pressed down;

fourthly, whether a door opening button is pressed down or not influences the saturation depth of the triode Q;

when the base of the triode Q can not bear the current required by the door lock, namely the triode Q is damaged:

if the base of the triode Q is blown (not considering whether the coil of the relay J is energized),

if the door opening button is pressed down, the door lock is powered off to open the door;

secondly, if the base of the triode Q is broken down (whether the coil of the relay J is electrified or not is not discussed),

firstly, a door opening button is pressed down, and a door lock is powered off to open the door;

and secondly, the door opening button is not pressed down, and the door lock cannot be opened without power loss.

It is known that: elevator room (elevator car door gate, the region that people waited) waits and take advantage of the elevator in order to ensure certain luminance convenience of customers, will eliminate the ever-burning lamp again, and the switch of elevator room light generally adopts the reputation control delay switch, through adopting opening of the dual control lamp of reputation, has: when the illuminance of the use environment is sensed to be lower than a set threshold (generally taking a value between 0.9 and 1.8 Lx), as long as a sound which is larger than a set sound (in order to reduce the mistaken lamp turning-on and save electricity better, and ensure that a normal sound (such as footstep sound, speaking sound and the like) is emitted in a certain range under the lamp to trigger the lamp to turn on, the general sensitivity is set to be larger than 25 dB) and the frequency is 50Hz to 12.5KHz, the switch is automatically turned on (the lamp is on) and is automatically turned off after the set time (generally designed to be 20 to 50 seconds) is delayed, the switch is kept in a turned-off state without the sound (the sensed sound is smaller than the set sound), in the delay of the set time, if the sound which is larger than the set sound is sensed again, the delay is cancelled and the lamp is kept turned on, and the delay is restarted when the sound which is not sensed to be larger than the set sound, the switch is, the turned on lamp will automatically turn off. When the illuminance of the use environment is sensed to be larger than the set threshold value, the switch cannot be turned on no matter how loud the loudness is sensed, namely, the lamp is turned off no matter how loud the loudness is sensed. Therefore, when the illumination of the elevator hall is insufficient, the 'people arrive at the lamp and turn on the lamp, and the people walk away from the lamp'.

It is well known that: a user can pay a certain distance to an elevator hall at the same floor by swiping a card to enter the elevator hall, and very loud sounds (such as footsteps or speaking sounds) can be intentionally generated after the user swipes the card to enter the elevator hall in order to conveniently walk to the elevator hall at night, so that the sound and light controlled delay switch of the elevator hall illuminating lamp senses the sound loudness larger than the sensitivity, and the elevator hall illuminating lamp is started as early as possible. The elevator hall illuminating lamp is characterized in that a large sound is intentionally emitted after the elevator hall illuminating lamp is brushed and clamped into a door, and the elevator hall illuminating lamp is started as early as possible: the elevator hall is convenient to walk to after people punch the card at night and enter the door, but the interference is caused to the life of other residents, and especially the rest of other residents is easily influenced at night.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, provides a circuit for opening a door and calling an elevator and lighting based on a card swiping machine and an implementation method, realizes calling the elevator and starting lighting while swiping the door by the entrance and exit entrance machine, and is energy-saving, stable and reliable.

In order to achieve the above purpose, the technical solution of the present invention is:

a circuit for opening a door and calling an elevator and lighting based on a card swiping machine comprises an output call signal module and a call signal receiving control module, wherein an output of the output call signal module is connected with an input of the call signal receiving control module through an external connecting line; the output call signal module comprises an entrance/exit doorway machine, a door lock, a door opening button, a switch tube Q1, a resistor R1, diodes D1, D2 and D3, a direct-current power supply, a call signal positive output end and a call signal negative output end; the DOOR + end of the output switch of the entrance/exit DOOR phone is connected with the anode of the direct-current power supply, the DOOR-end of the output switch of the entrance/exit DOOR phone is connected with one end of a DOOR opening button, the other end of the DOOR opening button is connected with the anode of a DOOR lock, and the cathode of the DOOR lock is connected with the cathode of the direct-current power supply; one end of the resistor R1 is connected with the control end of the switch tube Q1, and the other end of the resistor R1 is connected with the negative electrode of the direct-current power supply; the anode of the diode D1 is connected with the anode of the direct current power supply, the cathode of the diode D1 is connected with the anode of the diode D2, and the cathode of the diode D2 is connected with the high potential end of the switching tube Q1; the anode of the diode D3 is connected with the DOOR-end of the output switch of the entrance/exit doorway machine, and the cathode of the diode D3 is connected with the control end of the switch tube Q1; a low potential end of the switching tube Q1 is connected with a positive output end of the call signal; the negative electrode of the direct current power supply is connected with the negative output end of the call signal; the call signal positive output end is connected with the positive electrode of the call signal receiving control module through an external connecting line; and the call signal output end is connected with the cathode of the call signal receiving control module through the outside.

The call signal receiving control module is arranged in an elevator hall at the same layer with the entrance and exit doorway machine.

The switching tube Q1 is a PNP type switching triode, the base electrode of the PNP type switching triode is the control end of the switching tube Q1, the emitter electrode of the PNP type switching triode is the high potential end of the switching tube Q1, and the collector electrode of the PNP type switching triode is the low potential end of the switching tube Q1.

The control module for receiving the call signal comprises a relay J and an audio output module; the positive pole of the call signal receiving control module is respectively connected with the positive pole of the audio output module and one end of the J coil of the relay; the negative electrode of the call signal receiving control module is respectively connected with the negative electrode of the audio output module and the other end of the J coil of the relay; the normally open contact of the relay J is connected with the elevator call button in parallel; the output of the audio output module is connected with the sound-light control delay switch through sound transmission.

The call signal receiving control module is connected with the power-on loop and starts working; the power circuit is cut off and the operation is stopped.

The audio output module comprises a light-operated audio oscillator, an audio amplifier and a loudspeaker; the output of the light-operated audio oscillator is connected with the input of an audio amplifier, the output of the audio amplifier is connected with a loudspeaker, and the loudspeaker is connected with a sound-light-operated delay switch through sound transmission; the positive pole of the light-operated audio oscillator is connected with the positive pole of the audio amplifier and then is connected with the positive pole of the audio output module; the cathode of the light-operated audio oscillator is connected with the cathode of the audio amplifier and then is connected with the cathode of the audio output module.

And a photosensitive device of the light-operated audio oscillator is arranged at a position where the lighting lamp of the elevator hall can be irradiated when being turned on.

The light-operated audio oscillator generates audio signals with the frequency of 50 Hz-12.5 KHz.

The loudspeaker and the sound and light control delay switch are installed in a close range.

The loudness of sound output by the loudspeaker is 30 dB.

The direct current power supply is 12V.

The output switch of the entrance/exit door machine is a dry contact signal, the output switch is on when the entrance/exit door machine is in a normal door closing state, and the output switch is off to give a power-off signal after the entrance/exit door machine is opened by swiping a card.

The door opening button is a normally closed button and is a door opening button of the door lock and used for operation when the door is opened, when the door opening button is pressed down, the door opening button is disconnected from a normally closed state, the door opening button is released, and the switch of the door opening button is switched on and is restored to be normally closed.

The door lock is characterized in that: the door is locked when in the power-on state; and when the door is in a power-off state, the door is opened. Under the normal door closing state: the output switch of the entrance/exit doorway machine is connected, the switch of the door opening button is connected, and the door lock is locked in an electrified state.

The diodes D1, D2 and D3 are switching diodes, and in order to ensure that the switching tube Q1 is reliably turned off when the output switch of the entrance/exit doorway machine is turned on, it is preferable that the diodes D1 and D2 are silicon switching diodes and the diode D3 is a germanium switching diode.

The relay J is a direct current relay and is a direct current relay with a group of normally open contacts.

The acousto-optic control delay switch is a switch of an elevator hall illuminating lamp on the same floor of the entrance and exit doorway machine.

The diode D3: firstly, when the output switch of the entrance/exit gate machine is disconnected, the door lock branch is not influenced by the electrification of the switch tube Q1, namely, the door lock is ensured to be reliably opened when the output switch of the entrance/exit gate machine is disconnected, the base current of the switch tube Q1 is effectively protected from being damaged due to overlarge, and the function of protecting the switch tube Q1 is realized, so that when the output switch of the entrance/exit gate machine is disconnected, the diode D3 is used for electrically isolating the door lock branch from the calling signal acquisition branch; and secondly, when the output switch of the entrance/exit door phone is switched on, the door lock branch is electrically communicated with the call signal acquisition branch, and the switch tube Q1 is switched off from saturation by switching on the output switch of the entrance/exit door phone.

The elevator call button is the elevator call button on the same layer as the entrance/exit doorway machine. And the signal collected by the elevator call button is also a dry contact signal.

The other technical scheme of the invention is as follows:

a realization method of a circuit for opening a door and calling an elevator and lighting based on a card swiping machine comprises the following steps:

in the state that an output switch of an entrance/exit door machine is switched on, a switch Q1 switch is switched off, and a power-on loop sent to a call signal receiving control module is switched off;

in the state that the output switch of the entrance/exit doorway machine is disconnected, the switch tube Q1 is switched on, and the power-on loop of the control module for receiving the calling signal is switched on;

during the disconnection of the power-on loop of the call signal receiving control module, the call signal receiving control module does not work, namely the normally open contact of the relay J is in a release state and no sound is output from the audio output module;

during the period that the power-on loop of the call signal receiving control module is turned on:

the normally open contact of the relay J is connected,

② to control the sound output

a. The light-operated audio oscillator senses that the illumination of the elevator hall is less than 2.0Lx, the audio output module outputs sound,

b. the light-operated audio oscillator senses that the illumination of the elevator hall is more than or equal to 2.0Lx, and the audio output module outputs no sound.

Has the advantages that:

the invention discloses a circuit for opening a door, calling an elevator and lighting based on a card swiping machine and an implementation method, which are mainly characterized in that:

the electric isolation diode is added between the door lock branch and the call signal acquisition branch, so that when the output switch of the entrance and exit door machine is disconnected, the door lock branch is not influenced by the call signal acquisition branch, the door is reliably opened when the output switch of the entrance and exit door machine is disconnected, and a switch tube Q1 is not damaged due to the influence of the door lock branch. Because the electric isolating diode is added between the door lock branch and the calling signal acquisition branch, when the output switch of the entrance/exit door phone is disconnected, the reliable simulation of the response sound of an elevator button signal and the sound-light controlled delay switch can be ensured, and the reliable opening of the door lock can be ensured. The electric isolation diode added between the door lock branch and the call signal acquisition branch only plays a one-way electric isolation role, when the output switch of the entrance/exit door phone is switched on, the switch tube Q1 is switched off from saturation by the aid of the output switch of the entrance/exit door phone, and the circuit is reliable;

the existing sound and light control delay switch installed on the elevator hall illuminating lamp does not need to be modified, when the door phone is opened by swiping a card at night, the illuminating lamp is in a closed state, sound is generated to be generated as far as possible, the sound and light control illuminating lamp in the elevator hall at the same floor is opened, the action that a user intentionally generates a very large sound after swiping the card into the door and opens the elevator hall illuminating lamp in advance is reduced, the interference of swiping the card and opening the door to the life of other households due to the fact that the lamp needs to be turned on by sound control is reduced, and particularly, the rest of other households due to the fact that the lamp needs to be turned on by sound control is reduced at night.

The elevator and lighting circuit is linked, so that electricity is saved, and the elevator and lighting circuit is stable and reliable.

Drawings

FIG. 1 is a schematic block diagram of an output call signal module for a circuit based on a swipe card reader door opening and elevator and lighting calling of the present invention;

FIG. 2 is a schematic block diagram of a received call signal control module of a circuit based on a POS (point of sale) machine for opening doors and calling an elevator and lighting;

FIG. 3 is a schematic block diagram of an audio output module of the received call signal control module of FIG. 2 according to the present invention;

FIG. 4 is a schematic diagram of an embodiment of the optically controlled audio oscillator of the audio output module of FIG. 3;

in the figure: the system comprises diodes D1, D2, D3 and D4., resistors R1, R2, R3, resistors R4, a photoresistor RG., a capacitor C1, a relay J, a 3050 entrance and exit doorway machine, a direct current power supply DC12V, a Q1. switching tube, a door lock branch, 102, a call signal acquisition branch, a 1000, an output call signal output module, 2000, a call signal receiving control module, a call signal positive output end, a call signal negative output end, a 'call signal positive input end, b' call signal negative input end, 201, an audio output module, 21, a light-operated audio oscillator, 22, an audio amplifier, 23, a loudspeaker I, II, III and IV, and first to fourth NAND gates.

Detailed Description

As shown in fig. 1, a circuit for opening a door and calling an elevator and lighting based on a card swiping machine comprises an output call signal module 1000 and a call signal receiving control module 2000, wherein an output of the output call signal module 1000 is connected with an input of the call signal receiving control module 2000 through an external connection line; the output call signal module 1000 is arranged at the installation position of the entrance/exit door phone 3050, and the received call signal control module 2000 is arranged in an elevator hall at the same layer as the entrance/exit door phone 3050; the output call signal module 1000 comprises an entrance/exit doorway machine 3050, a door lock, a door opening button, a switch tube Q1, a resistor R1, diodes D1, D2, D3, a direct-current power supply DC12V, a call signal positive output end a and a call signal negative output end b; the DOOR + end of the output switch of the entrance/exit gate machine 3050 is connected with the anode of the DC power supply DC12V, the DOOR-end of the output switch of the entrance/exit gate machine 3050 is connected with one end of a DOOR opening button, the other end of the DOOR opening button is connected with the anode of a DOOR lock, and the cathode of the DOOR lock is connected with the cathode of the DC power supply DC 12V; the anode of the diode D1 is connected with the anode of the direct-current power supply DC12V, the cathode of the diode D1 is connected with the anode of the diode D2, and the cathode of the diode D2 is connected with the high-potential end of the switching tube Q1; one end of the resistor R1 is connected with the control end of the switch tube Q1, and the other end of the resistor R1 is connected with the negative electrode of the direct-current power supply DC 12V; the anode of the diode D3 is connected with the DOOR-end of the output switch of the entrance/exit doorway machine 3050, and the cathode of the diode D3 is connected with the control end of the switch tube Q1; a low-potential end of the switching tube Q1 is connected with a call signal positive output end a; the negative electrode of the direct-current power supply DC12V is connected with the call signal negative output end b; the call signal positive output end a is connected with the positive electrode of the call signal receiving control module 2000 through an external connection line and a call signal positive input end a'; the call signal negative output end b is connected to the negative electrode of the call signal receiving control module 2000 through an external connection line via the call signal negative input end b'.

The DC power supply DC12V is 12V.

The output switch of the entrance/exit doorway machine 3050 is a dry contact signal, the output switch is on when the entrance/exit doorway machine 3050 is in a normal door closing state, and the output switch is off to give a power-off signal when the entrance/exit doorway machine 3050 opens the door by swiping a card.

The door lock is characterized in that: the door is locked when in the power-on state; and when the door is in a power-off state, the door is opened. Under the normal door closing state: the output switch of the entrance/exit doorway machine 3050 is switched on, the switch of the door opening button is switched on, and the door lock is locked in an electrified state.

The diodes D1, D2 and D3 are switching diodes, and in order to ensure that the switching tube Q1 is reliably turned off when the output switch of the doorway machine 3050 is turned on, it is preferable that the diodes D1 and D2 are silicon switching diodes and the diode D3 is a germanium switching diode; the invention only selects two stages of diodes D1 and D2 which are connected in series in a forward direction sequence to the high potential end of the switching tube Q1, and is used for selecting the resistance value of a bias resistor R1 of the switching tube Q1 which is large enough, so that the switching tube Q1 is conducted and saturated when the output switch of the entrance/exit gate machine 3050 is switched off, and the current flowing through the diode D3 is small when the output switch of the entrance/exit gate machine 3050 is switched on, thereby saving electricity.

The switching tube Q1 is a PNP switching transistor, which is a current driving element, the base of the PNP switching transistor is the control end of the switching tube Q1, the collector of the PNP switching transistor is the low potential end of the switching tube Q1, and the emitter of the PNP switching transistor is the high potential end of the switching tube Q1. When the base current of the switching tube Q1 is equal to zero, the switching tube Q1 is turned off, that is, the switching tube Q1 is turned off; when the base current of the switching tube Q1 multiplied by the current of the collector is larger than the amplification factor, the switching tube Q1 is in conduction saturation, i.e., the switching tube Q1 is switched on. The currents here are taken to be absolute values.

The diode D3: firstly, when the output switch of the entrance/exit gate machine 3050 is turned off, the door lock branch 101 is not affected by the power on of the switch tube Q1, that is, when the output switch of the entrance/exit gate machine 3050 is turned off, the door lock is ensured to be opened reliably, and the base current of the switch tube Q1 is effectively protected from being damaged due to too large current, so that the switch tube Q1 is protected, and therefore, when the output switch of the entrance/exit gate machine 3050 is turned off, the diode D3 is used for electrically isolating the door lock branch 101 from the call signal acquisition branch 102; and secondly, when the output switch of the entrance/exit doorway machine 3050 is switched on, the door lock branch 101 is electrically communicated with the call signal acquisition branch 102, and the output switch of the entrance/exit doorway machine 3050 is switched on, so that the switching tube Q1 is switched off from saturation.

When the output switch of the entrance/exit phone 3050 is turned on, the positive electrode of the DC power supply DC12V is connected to the negative electrode through the forward diode D3 and the resistor R1, the diode D3 is forward-connected, and the forward-connected voltage is less than 0.7V, the low-potential end of the diode D3 is connected to the control end of the switch tube Q1, the high-potential end of the diode D3 is connected through the diodes D1 and D2 connected in series in the forward direction in series, that is, the voltage is less than 0.7V, the diodes D1 and D2 connected in series in the forward direction cannot be connected, the current at the control end of the switch tube Q1 is zero, so when the output switch of the entrance/exit phone 3050 is turned on, the switch tube Q1 is reliably turned off due to the action of the diodes D1 and D2 connected in series in the forward direction, that when the output switch of the entrance/exit phone 3050 is turned on, the switch Q1 is turned off.

When the output switch of the entrance/exit doorway machine 3050 is turned off, the positive electrode of the direct-current power supply DC12V passes through the diodes D1 and D2 which are connected in series in the forward direction in sequence, then reaches the high-potential end of the switching tube Q1, and then reaches the negative electrode of the direct-current power supply DC12V from the control end of the switching tube Q1 through the bias resistor R1; the diodes D1 and D2 are turned on, and the resistance of the bias resistor R1 is selected, so that the base current multiplied by the amplification factor of the switching tube Q1 is larger than the collector current, the switching tube Q1 is turned on and saturated, that is, when the output switch of the doorway machine 3050 is turned off, the switching tube Q1 is turned on. The currents here are taken to be absolute values.

When the switch Q1 is turned on, the DC power DC12V is sent to the call signal receiving control module 2000 to turn on the circuit, and the call signal receiving control module 2000 is powered on.

When the switch Q1 is turned off, the loop from the DC power DC12V to the call signal receiving control module 2000 is turned off, and the call signal receiving control module 2000 stops working when power is lost.

As shown in fig. 1, an output call signal module 1000 based on a circuit for a card swiping machine to open a door and call an elevator and lighting has the following functions:

in a state that an output switch of an entrance/exit door machine 3050 is switched on:

the switch of the switching tube Q1 is turned off, and the power supply circuit sent to the received call signal control module 2000 is turned off;

when the door opening button is in a loosening state, the door lock is in a power-on state, and the door is locked;

when the door opening button is pressed down, the door lock is powered off to open the door;

fourthly, whether the door opening button is pressed down or not does not influence the switch of the switch tube Q1 to be in the off state;

the second is under the state of gateway gate machine 3050 output switch disconnection:

firstly, the switch of the switch tube Q1 is switched on, and the power supply loop which is sent to the control module 2000 for receiving the call signal is switched on;

and secondly, if the door opening button is pressed down, the door lock is powered off to open the door, and the switch-on state of the switch tube Q1 is not influenced.

As shown in fig. 2, a receiving call signal control module 2000 based on a circuit of a POS machine for opening a door and calling an elevator and lighting comprises a diode D4, a relay J, an audio output module 201; the positive electrode of the received call signal control module 2000 is respectively connected with the positive electrode of the audio output module 201, the cathode of the diode D4 and one end of the coil of the relay J; the cathode of the call signal receiving control module 2000 is respectively connected with the cathode of the audio output module 201, the anode of the diode D4 and the other end of the coil of the relay J; the normally open contact of the relay J is connected with the elevator call button in parallel; the audio output module 201 outputs sound to connect with the sound and light controlled delay switch.

The elevator call button is an elevator call button on the same layer as the entrance/exit door phone 3050, and an elevator call button signal acquired by the elevator is also a dry contact signal, namely, an elevator call button output signal is a dry contact signal, and is disconnected at ordinary times (when released), and is pressed to be connected, so that the elevator is called.

The relay J is a direct current relay, is a group of direct current relays with normally open contacts and is used for specifically simulating an elevator call button to prompt and call an elevator.

The acousto-optic control delay switch is a switch of an elevator hall illuminating lamp on the same floor of the entrance/exit doorway machine 3050.

The audio output module 201 is used for generating and outputting sound capable of triggering the sound and light control delay switch to be turned on, the frequency of the generated sound is 50 Hz-12.5 KHz, the output loudness is set to be 30dB, and the sound and light control delay switch is generally set to sense the loudness above 25dB and then is effective sound.

The audio output module 201 is powered on to work, and the audio output module 201 is powered off to stop.

As shown in fig. 3, the audio output module 201 of the received call signal control module 2000 includes a light-controlled audio oscillator 21, an audio amplifier 22, and a speaker 23; the output of the light-operated audio oscillator 21 is connected with the input of an audio amplifier 22, the output of the audio amplifier 22 is connected with a loudspeaker 23, and the loudspeaker 23 is connected with a sound-light-operated delay switch through sound transmission; the positive pole of the light-operated audio oscillator 21 is connected with the positive pole of the audio amplifier 22 and then is connected with the positive pole of the audio output module 201; the cathode of the optically controlled audio oscillator 21 is connected to the cathode of the audio amplifier 22 and then connected to the cathode of the audio output module 201.

The light-operated audio oscillator 21 is used for generating an audio signal with the frequency of 50 Hz-12.5 KHz, namely, is used for generating an audio signal to which the sound-light-operated delay switch can respond. The light-operated audio oscillator 21 comprises a light sensing circuit and an audio oscillator; the light sensing circuit is used for sensing the light intensity of the elevator hall, and the output of the light sensing circuit controls whether the audio oscillator is allowed to oscillate, namely whether the output of the light sensing circuit controls the audio oscillator to generate an audio signal; according to the invention, the output high level is set when the photosensitive circuit senses that the illumination of the elevator hall is less than 2.0Lx, otherwise, the output low level is set by the photosensitive circuit. The audio oscillator is used for specifically generating an audio signal with the frequency of 50 Hz-12.5 KHz, and is provided with a control end, and the control end of the audio oscillator is connected with the output of the photosensitive circuit; and is set as follows: when the light sensing circuit outputs a high level to the audio oscillator, the audio oscillator generates and outputs an audio signal, and when the light sensing circuit outputs a low level to the audio oscillator, the audio oscillator is forbidden from generating the audio signal, namely the audio oscillator stops oscillation and does not output. The light-operated audio oscillator 21 is set to work when being electrified, and whether audio is output depends on the output of the light sensing circuit. A photosensitive device used for specifically sensing the light brightness of the elevator hall in the photosensitive circuit is arranged at a position where the illuminating lamp of the elevator hall is turned on and can irradiate.

The audio amplifier 22 is used for amplifying the audio signal generated by the audio oscillator 21 and outputting the amplified audio signal to the speaker 23.

The loudspeaker 23 is used for specifically outputting sound with the loudness of 30dB and the frequency of 50 Hz-12.5 KHz, and triggering the sound-light control delay switch to turn on the illuminating lamp. The loudness of sound output by the loudspeaker is set to be 30dB, so that the sound and light control delay switch can be triggered to turn on the illuminating lamp, and people are not disturbed.

The speaker 23 is installed close to the acousto-optic controlled delay switch, that is, the speaker 23 is installed close to the acousto-optic controlled delay switch.

As shown in fig. 4, the optically controlled audio oscillator 21 in the audio output module includes a first nand gate i, a second nand gate ii, a third nand gate iii, a fourth nand gate iv, resistors R2, R3, R4, a photo resistor RG, and a capacitor C1; the two input ends of the first NAND gate I are connected and then connected with one end of a resistor R2 and one end of a photoresistor RG, the other end of the resistor R2 is connected with the anode of the light-operated audio oscillator 21, and the other end of the photoresistor RG is connected with the cathode of the light-operated audio oscillator 21; two input ends of the second NAND gate II are connected and then connected with an output end of the first NAND gate I; the output end of the second NAND gate II is connected with one input end of a third NAND gate III, the other input end of the third NAND gate III is connected with one end of a resistor R3, and the other end of the resistor R3 is connected in parallel with one end of a resistor R4 and one end of a capacitor C1; two input ends of the fourth NAND gate IV are connected and then connected in parallel with the output end of the third NAND gate III and the other end of the resistor R4; and the output end of the fourth nand gate iv is connected in parallel with the other end of the capacitor C1 and then connected with the input end of the audio amplifier 22.

The resistor R2, the photoresistor RG, the first NAND gate I and the second NAND gate II form an inductor circuit in the optically controlled audio oscillator 21; resistors R3 and R4, a capacitor C1, a third NAND gate III and a fourth NAND gate IV form an audio oscillator in the light-operated audio oscillator 21, and the input end of the audio oscillator connected with the output of the light-sensing circuit is the control end of the audio oscillator.

The invention adopts four NAND gates in a CD4011 as a first NAND gate I, a second NAND gate II, a third NAND gate III and a fourth NAND gate IV: pins 1 and 2 of the CD4011 are two input ends of a first NAND gate I, and pin 3 is an output end of the first NAND gate I; pins 5 and 6 of the CD4011 are two input ends of a second NAND gate II, and pin 4 is an output end of the second NAND gate II; pins 8 and 9 of the CD4011 are two input ends of a third NAND gate III, pin 10 is an output end of the third NAND gate III, pin 9 of the CD4011 is connected with an output end of a second NAND gate II, and pin 9 of the CD4011 is a control end of the audio oscillator; pins 12 and 13 of the CD4011 are two input ends of a fourth NAND gate IV, and pin 11 is an output end of the fourth NAND gate IV; the 14 pin of the CD4011 is connected with the anode of the light-operated audio oscillator 21, and the 7 pin of the CD4011 is connected with the cathode of the light-operated audio oscillator 21.

The light and shade's that photosensitive resistance RG is used for concrete response elevator room photosensitive element for among the photosensitive circuit, and photosensitive resistance RG installs in elevator room light and opens the position that can shine the acquisition, and photosensitive resistance RG's resistance changes along with the sensitization is strong and weak, and along with weakening of light, the resistance grow gradually.

By adjusting the size of the resistor R2, the photoresistor RG senses that the 4-pin output high level of the CD4011 is generated when the light illuminance is less than 2.0Lx, and the photoresistor RG senses that the 4-pin output low level of the CD4011 is generated when the light illuminance is more than or equal to 2.0 Lx.

The frequency generated by the audio oscillator falls within the range of 50Hz to 12.5KHz through the selection of the sizes of the resistors R3 and R4 and the capacitor C1, namely: through the selection of the resistors R3 and R4 and the capacitor C1, the audio signal generated by the audio oscillator is the audio required to be received by the sound-light controlled delay switch to turn on the lamp.

the normally open contact of the relay J is connected,

② to control the sound output

Claims

1. A circuit for opening a door and calling an elevator and lighting based on a card swiping machine comprises an output call signal module and a call signal receiving control module, wherein an output of the output call signal module is connected with an input of the call signal receiving control module through an external connecting line; the output call signal module comprises a door lock branch, a call signal acquisition branch, a diode D3 for isolation, a direct current power supply, a call signal positive output end and a call signal negative output end; the door lock branch comprises an entrance/exit doorway machine, a door lock and a door opening button; the call signal acquisition branch comprises a switching tube Q1, a resistor R1, a diode D1 and a diode D2; the door lock branch is connected with an output switch of the entrance/exit doorway machine, a door opening button and a door lock in series in sequence between the positive pole and the negative pole of the direct-current power supply; one end of the resistor R1 is connected with the control end of the switch tube Q1, and the other end of the resistor R1 is connected with the negative electrode of the direct-current power supply; the method is characterized in that a calling signal acquisition branch is connected with a door lock branch through an isolated diode D3; the anode of the diode D1 is connected with the anode of the direct current power supply, the cathode of the diode D1 is connected with the anode of the diode D2, and the cathode of the diode D2 is connected with the high potential end of the switching tube Q1; the low-potential end of the switching tube Q1 is connected with the output end of the call signal positive output; the negative electrode of the direct current power supply is connected with the negative output end of the call signal; the call signal positive output end is connected with the positive electrode of the call signal receiving control module through an external connecting line; the call signal output end is connected with the cathode of the call signal receiving control module through the outside; the anode of the isolated diode D3 is connected to the connecting line of the output switch of the entrance/exit doorway machine and the door opening button, and the cathode of the isolated diode D3 is connected to the control end of the switching tube Q1; the diode D1 and the diode D2 form an adaptive device for effectively switching off the switch of the switching tube Q1;

the control module for receiving the call signal is arranged in an elevator hall at the same layer with the entrance and exit doorway machine;

the control module for receiving the call signal comprises a relay J and an audio output module; the positive pole of the call signal receiving control module is respectively connected with the positive pole of the audio output module and one end of the J coil of the relay; the negative electrode of the call signal receiving control module is respectively connected with the negative electrode of the audio output module and the other end of the J coil of the relay; the normally open contact of the relay J is connected with the elevator call button in parallel; the output of the audio output module is connected with the sound-light control delay switch through sound transmission;

the audio output module comprises a light-operated audio oscillator, an audio amplifier and a loudspeaker; the output of the light-operated audio oscillator is connected with the input of an audio amplifier, the output of the audio amplifier is connected with a loudspeaker, and the loudspeaker is connected with a sound-light-operated delay switch through sound transmission; the positive pole of the light-operated audio oscillator is connected with the positive pole of the audio amplifier and then is connected with the positive pole of the audio output module; the negative electrode of the light-operated audio oscillator is connected with the negative electrode of the audio amplifier and then is connected with the negative electrode of the audio output module; the loudspeaker and the sound and light control delay switch are installed in a close distance, and the sound loudness output by the loudspeaker is 30 dB;

the optically controlled audio oscillator comprises a first NAND gate, a second NAND gate, a third NAND gate, a fourth NAND gate, a resistor R2, a resistor R3, a resistor R4, a photoresistor RG and a capacitor; the two input ends of the first NAND gate are connected and then connected with one end of a resistor R2 and one end of a photoresistor RG, the other end of the resistor R2 is connected with the anode of the light-operated audio oscillator, and the other end of the photoresistor RG is connected with the cathode of the light-operated audio oscillator; the two input ends of the second NAND gate are connected and then connected with the output end of the first NAND gate; the output end of the second NAND gate is connected with one input end of a third NAND gate, the other input end of the third NAND gate is connected with one end of a resistor R3, and the other end of the resistor R3 is connected with one end of a resistor R4 and one end of a capacitor in parallel; the two input ends of the fourth NAND gate are connected and then connected with the output end of the third NAND gate and the other end of the resistor R4 in parallel; the output end of the fourth NAND gate is connected with the other end of the capacitor in parallel and then connected with the input end of the audio amplifier; the resistor R2, the photoresistor RG, the first NAND gate and the second NAND gate form a sensing circuit in the optically controlled audio oscillator; the resistor R3, the resistor R4, the capacitor, the third NAND gate and the fourth NAND gate form an audio oscillator in the light-operated audio oscillator, and the input end of the audio oscillator, which is connected with the output of the photosensitive circuit, is the control end of the audio oscillator; the photosensitive resistor RG is installed at the position where the elevator hall illuminating lamp is opened and can irradiate, and is used for photosensitive circuit to the elevator hall.

2. The circuit for opening the door and calling the elevator and lighting based on the POS machine as claimed in claim 1, wherein the switch transistor Q1 is a PNP type switch transistor, the base of the PNP type switch transistor is the control terminal of the switch transistor Q1, the emitter of the PNP type switch transistor is the high potential terminal of the switch transistor Q1, and the collector of the PNP type switch transistor is the low potential terminal of the switch transistor Q1.

3. The method for realizing the circuit for opening the door and calling the elevator and lighting based on the POS machine is characterized by comprising the following steps of:

in the non-card swiping period, an isolated diode D3 acts on a call signal acquisition branch in a forward conducting and clamping mode, and the call signal acquisition branch enables a switch tube Q1 of the call signal acquisition branch to be effectively disconnected through an adaptive device diode D1 and a diode D2, and an electrifying loop sent to a call signal receiving control module is disconnected;

during the door opening period of swiping card, the isolated diode D3 acts on the call signal acquisition branch in a reverse bias mode, the switch tube Q1 input in the call signal acquisition branch is electrified, and bidirectional isolation is formed:

firstly, the resistance of the door lock in the door lock branch does not affect the input energization of the switch tube Q1 in the call signal acquisition branch, the switch tube Q1 is effectively switched on and is sent to the energization loop of the call signal receiving control module to be switched on,

secondly, the switching tube Q1 in the calling signal acquisition branch is electrified, the power-off signal given by the output switch of the entrance/exit doorway machine is not influenced and is sent to the door lock, and the door lock is effectively powered off;

during the disconnection of the power-on loop of the call signal receiving control module, the call signal receiving control module does not work, namely the normally open contact of the relay J is in a release state and the audio output module does not output sound;

the normally open contact of the relay J is connected,

② to control the sound output

a. When the light sensing circuit in the light-operated audio oscillator senses that the illumination of the elevator hall is less than 2.0Lx, the light sensing circuit outputs high level, the audio oscillator generates an audio signal, the audio signal is amplified by the audio amplifier and is sent to the loudspeaker to output sound,

b. when the light sensing circuit in the light-operated audio oscillator senses that the illumination of the elevator hall is more than or equal to 2.0Lx, the light sensing circuit outputs low level, the audio oscillator stops vibrating, and the loudspeaker outputs no sound.