CN2221842Y - Two-wire electric-control intercom for anti-theft door in the building - Google Patents

Abstract

The utility model relates to a two-wire electric-control intercom for anti-theft door in the building. The two-wire electric-control intercom for anti-theft door in the building is composed of a main frame and a plurality of receiver. The main frame is composed of a code sending circuit, a receiving circuit, a timing circuit, a lock driver circuit, and a communication circuit. The circuit of each receiver is same. The circuit of each receiver is composed of a decoding circuit, a time sequence circuit, a power supply control circuit, and a communication and code sending circuit. The circuits of receivers can code, decode, emit in both-direction, and receive in both-direction. The mainframe and each receiver share with two input and output transmission lines as signal lines.

Description

The automatically controlled talkback unit of two-wire system building residence antitheft door

The utility model relates to the automatically controlled talkback unit of antitheft door of a kind of building residence.

The automatically controlled talkback unit of existing building residence antitheft door exists in following deficiency:

1, on line is loaded down with trivial details: the on line of subscriber's extension station and main frame has five, and wherein four is that all users are public, and one is every user's special use.On line between main frame and the subscriber's extension station just reaches the N+4 root like this.N is resident family's number in this building in the formula.Suppose that certain building has 14 users, every on these lines were sat in the right seat when the on line between main frame, the extension set will reach 1 installation, maintenance of 14+4=18 root so, do not allow misconnection, missed.Therefore, the user who contacts this device installation for the first time feels that installation, maintenance is very tired.

2, unfavorable maintaining secrecy:, the certain user is abhored as long as whichever user mentions the dialogue that the mobile phone of extension set can be heard doorway and other user.

3, function is less: generally automatically controlled only unblanking.Certain this product even can only drive a lock makes same unit building and user with two doors uses inconvenience.

4, doorway machine badly often causes part fails such as button to cause fault owing to environment for use.

5, the button in a family is unsuitable for the many situations of skyscraper user.

6, the domestic market still has only a few to adopt the product of four bus systems.This is an improvement to the extension set that adopts five lines, sits in the right seat yet these four buses remain, and can not make a mistake.

The purpose of this utility model is exactly in order to address the above problem, and provides the two-wire system building residence antitheft door that a kind of installation and maintenance are very convenient and security performance is good automatically controlled talkback unit.

Technical solution of the present utility model:

The automatically controlled talkback unit of a kind of two-wire system building residence antitheft door, it includes a main frame and a plurality of receiver, and wherein main frame is made up of signaling circuit, receiving circuit, timing circuit, lock drive circuit and speaking circuit, and the signaling circuit is double audio coding device U ₁(model can be 5087), receiving circuit is by double-tone frequency decoder U ₂(model can be 8870), decoder U ₃(model can be 4513), U ₄(model can be 4514) constitutes, and the lock drive circuit is by transistor Q ₃, Q ₄And relay J ₁, J ₂Constitute, timing circuit is by cmos switch U ₅(model can be 4066), time base integrated package U ₆(model can be 555) constitutes, and speaking circuit is by microphone MIC ₁, transistor Q ₆, Q ₇, power discharging integrated block U ₈(model can be 386) and loudspeaker SP ₁Constitute, each receiver circuit structure is all identical, forms by decoding circuit, sequence circuit, cellular phone power supplies control circuit, conversation and signaling circuit, decoding circuit is by decoder U ₉(model can be 8870), U ₁₁(model can be 4028) and NAND gate U _12A, U _12C(model can be 4023) constitutes, and sequence circuit is by counter U ₁₀(model can be 4017), d type flip flop U _13A, U _13B, U ₁₄(model can be 4013) and NAND gate U _12B(model can be 4023) constitutes, and the cellular phone power supplies control circuit is by controllable silicon SCR, switch hook S ₂, power supply is (by transistor Q ₁₀With voltage-stabiliser tube Z ₁Composition), the news Chinese percussion instrument is (by transistor Q ₈With buzzer SP ₂Form) constitute, conversation and signaling circuit are by double audio coding device U ₁₅(model can be 5087), transistor Q ₁₁-Q ₁₅, earphone SP ₃And send and talk about microphone MIC ₂Constitute, wherein Q ₁₂, Q ₁₅With MIC ₂Form telecommunication circuit, Q ₁₁, Q ₁₃With SP ₃Form and receive telephone circuit, it is characterized in that main frame signaling circuit U ₁Input C ₁-C ₄, R ₁-R ₄By connector CN ₃Link to each other U with the keyboard matrix in the host panel ₁Output 16 pin by amplifier tube Q ₁Meeting public input-output line I/O (is connector CN ₂4 pin), simultaneously with the main frame receiving circuit in decoder U ₂Input connect U ₂The binary-coded decimal output simultaneously and decoder U ₃, U ₄Input link to each other U ₃Each output by connector CN ₁With the corresponding connection of LED charactron of host panel, U ₄Two output termination main frames lock drive circuits in brilliant pipe Q ₃, Q ₄Input, the lock drive circuit output from relay J ₁, J ₂Normally opened contact draw the electromagnetic lock that connects controlled gate, U ₄Other output can pass through connector CN ₅Be connected with voice plate or road lamp switch, public input-output line I/O and ground wire are by anti-sidetone transformer T ₁Link to each other its T with the main frame speaking circuit ₁Secondary output by connector CN ₂5 pin and the main frame speaking circuit in power discharging integrated block U ₈Input connect T ₁An elementary end passes through CN ₂2 pin connect power supply, T ₁CN is passed through in elementary tap ₂3 pin and the main frame speaking circuit in transistor Q ₇Collector electrode output connect; The inlet wire of each receiver all is connected on the public input-output line I/O and ground wire of main frame, and they are by guide bridge BR ₁With power supply transistor Q in the receiver cellular phone power supplies control circuit ₁₀Collector electrode link to each other, directly pass through fan-in network simultaneously (by resistance R ₃₉-R ₄₂And capacitor C ₂₂, C ₂₄Form) with the receiver decoding circuit in decoder U ₉Input connect U ₉Binary-coded decimal output termination decoder U ₁₁Input, U ₁₁Output by jumper wire device CN ₃Entering the mouth with the receiver sequence circuit is d type flip flop U _13A, U _13B, U ₁₄Input connect U _13A, U _13B, U ₁₄Output and NAND gate U _12BInput link to each other U _12BOutput and the news Chinese percussion instrument of receiver cellular phone power supplies control circuit in transistor Q ₈Base stage connects, Q ₈Collector electrode output connect the control utmost point of controllable silicon SCR, the output of receiver cellular phone power supplies control circuit is by connector CN ₇Be connected with mobile phone communication and signaling circuit, wherein the anode of the controllable silicon SCR in the receiver cellular phone power supplies control circuit is CN ₇1 pin link to each other the power supply V in the receiver cellular phone power supplies control circuit with the ground of mobile phone communication and signaling circuit _DDPass through CN ₇4 pin catcher machines conversations and the signaling circuit in double audio coding device U ₁₅Power end, receiver guide bridge BR ₁Output be CN ₇2 pin one tunnel and mobile phone communication and signaling circuit in the output of telecommunication circuit be Q ₁₅Collector electrode link to each other, another road is by by capacitor C ₃₉, C ₃₅And resistance R ₇₁, R ₇₀, R ₆₂The anti-sidetone network of forming is Q with the input of receiving telephone circuit ₁₃Base stage connect CN ₇2 pin also directly and in mobile phone communication and the signaling circuit output of signaling circuit be Q ₁₄Collector electrode link to each other i.e. CN ₇2 pin be the two-way signaling transmission line of receiver.

The utility model adopts Dual Tone Multifrequency coding, decoding technique, and doorway main frame and subscriber computer are all not only encoded but also decode simultaneously.The two-way emission of DTMF sign indicating number, two-way reception makes doorway visitor's selective call user, or to the letter box message, and each extension subscriber can be unblanked or open the mailbox that presets.All dtmf signals and power line, ground wire and conversation signal are all by two same input and output transmission lines.Therefore all subscriber's extension stations of the present utility model all are connected on two terminals of circuit output of main frame, and can connect arbitrarily, i.e. two lines polarity not.All users need not training and can install, use according to specification.Security performance of the present utility model is good, and when the doorway visitor visited user's communication with it, other users can't hear any sound.The utility model also can play electronic speech and the visitor replys, and can find out visitor's situation like this under own noiseless situation.The utility model also can be provided with voice mail, is convenient to visitor's message.Doorway of the present utility model main machine structure is novel unique, extremely attractive and durable.In addition, the utility model may command is many electromagnetic lock, is convenient to same unit building and user with two or more opens.

Fig. 1 is main frame signaling of the present utility model, reception, drive circuit electrical schematic diagram;

Fig. 2 is a main frame speaking circuit electrical schematic diagram of the present utility model;

Fig. 3 is receiver decoding of the present utility model, sequential, power circuit electrical schematic diagram;

Fig. 4 is receiver mobile phone communication of the present utility model and signaling circuit electrical schematic diagram.

As Fig. 1-4, when the utility model used, the visitor was earlier by " start " key on the host panel of doorway, i.e. S among Fig. 1 ₁Key, this moment, main frame sent reset signal, and the zero clearing simultaneously of each receiver user prepares to receive host signal.The visitor then presses the figure key on the host panel then, i.e. the room number that will visit, and then the decoding of each receiver user and sequence circuit are started working, and have only jumper wire device CN ₈The number (999 jack per stations can be set altogether) that is provided with of A, B, C end when identical with the room number of importing, just can make NAND gate U _12BOutput low level, and make transistor Q ₈Conducting, news Chinese percussion instrument SP ₂Pipe.Be extension set separate the number identical with own preset number (odd numbers) or separate the number (many numbers) that presets with oneself identical and order when also conforming to, the buzzer SP in the extension set ₂The signal of sounding of starting working.This moment is as if user's off-hook, buzzer SP ₂Disconnect, insert the spring switch S ₂Discharge, the conducting of controllable silicon SCR ability is to the conversation and the signaling circuit supply of user mobile phone.Controllable silicon SCR is put down mobile phone up to the user and is just turn-offed again.If what the main frame place did not have that guest or guest import is not loCal number, even then pick up mobile phone, controllable silicon SCR can conducting work yet.The user can converse with the doorway main frame like this.When the user presses switch S on the mobile phone ₄, S ₅, S ₇The time, the signaling circuit U ₁₅By transistor Q ₁₄To circuit (is CN ₇2 pin) send dtmf signal.After being received, decipher by main frame, this signal then starts the voice that gate electromagnetic lock or broadcast are preset.S ₆For the lock selector switch (if the gate is two-door twin-lock, the S of subscriber computer ₆Also be preset at and lock on the corresponding position).Do not reply button if extension subscriber is not want can press with doorway main frame conversation, can send electronic speechs such as " may I ask you are whom ", as not wanting to receive the visitor, but button makes the doorway main frame send voice such as " people that you will look for do not exist ".After dividing hand set to put down, promptly speaking circuit is stopped power supply power supply again after next guest calls out gating and mentions phone.

Claims (1)

1, the automatically controlled talkback unit of a kind of two-wire system building residence antitheft door, it includes a main frame and a plurality of receiver, and wherein main frame is made up of signaling circuit, receiving circuit, timing circuit, lock drive circuit and speaking circuit, and the signaling circuit is double audio coding device U ₁(model can be 5087), receiving circuit is by double-tone frequency decoder U ₂(model can be 8870), decoder U ₃(model can be 4513), U ₄(model can be 4514) constitutes, and the lock drive circuit is by transistor Q ₃, Q ₄And relay J ₁, J ₂Constitute, timing circuit is by cmos switch U ₅(model can be 4066), time base integrated package U ₆(model can be 555) constitutes, and speaking circuit is by microphone MIC ₁, transistor Q ₆, Q ₇, power discharging integrated block U ₈(model can be 386) and loudspeaker SP ₁Constitute, each receiver circuit structure is all identical, forms by decoding circuit, sequence circuit, cellular phone power supplies control circuit, conversation and signaling circuit, decoding circuit is by decoder U ₉(model can be 8870), U ₁₁(model can be 4028) and NAND gate U _12A, U _12C(model can be 4023) constitutes, and sequence circuit is by counter U ₁₀(model can be 4017), d type flip flop U _13A, U _13B, U ₁₄(model can be 4013) and NAND gate U _12B(model can be 4023) constitutes, and the cellular phone power supplies control circuit is by controllable silicon SCR, switch hook S ₂, power supply is (by transistor Q ₁₀With voltage-stabiliser tube Z ₁Composition), the news Chinese percussion instrument is (by transistor Q ₈With buzzer SP ₂Form) constitute, conversation and signaling circuit are by double audio coding device U ₁₅(model can be 5087), transistor Q ₁₁-Q ₁₅, earphone SP ₃And send and talk about microphone MIC ₂Constitute, wherein Q ₁₂, Q ₁₅With MIC ₂Form telecommunication circuit, Q ₁₁, Q ₁₃With SP ₃Form and receive telephone circuit, it is characterized in that main frame signaling circuit U ₁Input C ₁-C ₄, R ₁-R ₄By connector CN ₃Link to each other U with the keyboard matrix in the host panel ₁Output 16 pin by amplifier tube Q ₁Meeting public input-output line I/O (is connector CN ₂4 pin), simultaneously with the main frame receiving circuit in decoder U ₂Input connect U ₂The binary-coded decimal output simultaneously and decoder U ₃, U ₄Input link to each other U ₃Each output by connector CN ₁With the corresponding connection of LED charactron of host panel, U ₄Two output termination main frames lock drive circuits in brilliant pipe Q ₃, Q ₄Input, the lock drive circuit output from relay J ₁, J ₂Normally opened contact draw the electromagnetic lock that connects controlled gate, U ₄Other output can pass through connector CN ₅Be connected with voice plate or road lamp switch, public input-output line I/O and ground wire are by anti-sidetone transformer T ₁Link to each other its T with the main frame speaking circuit ₁Secondary output by connector CN ₂5 pin and the main frame speaking circuit in power discharging integrated block U ₈Input connect T ₁An elementary end passes through CN ₂2 pin connect power supply, T ₁CN is passed through in elementary tap ₂3 pin and the main frame speaking circuit in transistor Q ₇Collector electrode output connect; The inlet wire of each receiver all is connected on the public input-output line I/O and ground wire of main frame, and they are by guide bridge BR ₁With power supply transistor Q in the receiver cellular phone power supplies control circuit ₁₀Collector electrode link to each other, directly pass through fan-in network simultaneously (by resistance R ₃₉-R ₄₂And capacitor C ₂₂, C ₂₄Form) with the receiver decoding circuit in decoder U ₉Input connect U ₉BCD output termination decoder U ₁₁Input, U ₁₁Output by jumper wire device CN ₈Entering the mouth with the receiver sequence circuit is d type flip flop U _13A, U _13B, U ₁₄Input connect U _13A, U _13B, U ₁₄Output and NAND gate U _12BInput link to each other U _12BOutput and the news Chinese percussion instrument of receiver cellular phone power supplies control circuit in transistor Q ₈Base stage connects, Q ₈Collector electrode output connect the control utmost point of controllable silicon SCR, the output of receiver cellular phone power supplies control circuit is by connector CN ₇Be connected with mobile phone communication and signaling circuit, wherein the anode of the controllable silicon SCR in the receiver cellular phone power supplies control circuit is CN ₇1 pin link to each other the power supply V in the receiver cellular phone power supplies control circuit with the ground of mobile phone communication and signaling circuit _DDPass through CN ₇4 pin catcher machines conversations and the signaling circuit in double audio coding device U ₁₅Power end, receiver guide bridge BR ₁Output be CN ₇2 pin one tunnel and mobile phone communication and signaling circuit in the output of telecommunication circuit be Q ₁₅Collector electrode link to each other, another road is by by capacitor C ₃₉, C ₃₅And resistance R ₇₁, R ₇₀, R ₆₂The anti-sidetone network of forming is Q with the input of receiving telephone circuit ₁₃Base stage connect CN ₇2 pin also directly and in mobile phone communication and the signaling circuit output of signaling circuit be Q ₁₄Collector electrode link to each other i.e. CN ₇2 pin be the two-way signaling transmission line of receiver.

Images