CN206024111U - A kind of indoor two-way wired public address system - Google Patents

Abstract

The utility model discloses a kind of indoor two-way wired public address system, including for sending or receiving the master controlling terminal device of audible signals, for sending or receiving the first of audible signals from client device and for receiving the second of audible signals from client device, the master controlling terminal device, first include message processing module, transmitting-receiving words module, power amplifier chips, supply module and switching switch from client device and second from client device.Master controlling terminal device is deployed in parlor or dining room by the utility model, containing intercommunication function first is deployed in each floor passageway from client device, without intercommunication function second is deployed in room from client device, the utility model compares existing wireless intercom system and wired building conversational system, simple structure, it is easy to accomplish, low production cost.

Description

A kind of indoor two-way wired public address system

Technical field

The utility model is related to electronic technology field, more particularly to a kind of indoor two-way wired public address system.

Background technology

With growth in the living standard, the recoverable amount of the spring layer house or villa of domestic resident is being stepped up.At these During the inhabitation use of big-room and luxury housing project house, such a problem is gradually generated.Personnel upstairs and downstairs in communication process, Sound is improved and can be just smoothed out, for the more house of floor such as villa, bottom personnel and top layer personnel it Between call must also super large voice.

Market has wireless interspeaker to sell at present, but the equipment frequent use at home, is related to some problems：One is Wireless signal during intercommunication has apparent signal interference to the mobile phone using in, audio amplifier, TV etc.；Two is intercommunication content Be possible to by other hand platform uppicks, or uppick other interfere and privacy leakage with the signal of frequency hand platform；Three is frequent During use, electromagnetic radiation also has a certain degree of impact to human body.

Utility model content

For above-mentioned deficiency of the prior art, technical problem to be solved in the utility model is to provide a kind of interior Two-way wired public address system, simple structure, it is easy to accomplish, low production cost.

In order to solve above-mentioned technical problem, the utility model proposes a kind of indoor two-way wired public address system, including using In sending or receive the master controlling terminal device of audible signals, from client device and be used for for sending or receive the first of audible signals Receive audible signals second from client device, the master controlling terminal device, first equal from client device from client device and second Including message processing module, transmitting-receiving words module, power amplifier chips, supply module and switching switch, the power amplifier chips include central authorities Processor, the first pin of the central processing unit are drawn with the 8th of central processing unit after the electric capacity C2 and resistance R1 of series connection Pin is connected, and the second pin of the central processing unit is connected with the first pin of the transmitting-receiving telephone unit with the 4th pin, described After the second pin of central processing unit and the 4th pin electric capacity C6 and resistance R3 by connecting with central processing unit the 5th Pin is connected, and the resistance R3 is connected with the second pin of message processing unit by electric capacity C3, and the electric capacity C6 is by series connection Electric capacity C1 with after resistance R2 with described transmitting-receiving telephone unit second pin be connected, the 3rd pin of the central processing unit passes through Electric capacity C4 is also connected with the second pin of the transmitting-receiving telephone unit, and the 7th pin of the central processing unit is connected by electric capacity C5 On the first pin of the transmitting-receiving telephone unit, the 5th pin of the central processing unit passes through the resistance R3 and electric capacity C6 of series connection It is connected on the first pin of the transmitting-receiving telephone unit afterwards, the 6th pin of the central processing unit connects the moon of diode D1 Pole, the anode of diode D1 connect the first pin of the supply module, cut described in the second pin connection of the supply module Change the 3rd pin of switch and be grounded, the second pin of the switching switch is connected to the company between the electric capacity C1 and electric capacity C6 On contact, the second pin of the supply module is also connected with first lead-out terminal, the second pin of the message processing unit with Second lead-out terminal is connected.

Of the present utility model one implement in, the first pin of the described first message processing unit from client device with First pin of the switching switch is connected.

Further, the first pin of the described second message processing unit from client device and first lead-out terminal It is connected.

In an embodiment of the present utility model, the message processing unit is loudspeaker.

Further, the transmitting-receiving telephone unit is microphone.

Preferably, the supply module is the dc source that voltage is 9V.

Implement the utility model, have the advantages that：

The two-way wired public address system in interior of the present utility model places a master controlling terminal device on parlor or dining room wall, its His floor or room can be laid from client device, and parlor personnel call other floors user, only need to press intercommunication button, against Master controlling terminal device is propagandaed directed to communicate, and other can be heard from client device, and other floors personnel such as need response parlor personnel, press first from Client device intercommunication button.Master controlling terminal device is deployed in parlor or dining room by the utility model, first containing intercommunication function Each floor passageway is deployed in from client device, second without intercommunication function is deployed in room from client device, this practicality is new Type compares existing wireless intercom system and wired building conversational system, simple structure, it is easy to accomplish, low production cost.

Description of the drawings

Fig. 1 be the utility model provide indoor two-way wired public address system master controlling terminal device and first from client device Circuit diagram.

Fig. 2 is indoor two-way wired public address system that the utility model is provided second from the circuit diagram of client device.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Embodiment in based on the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.

As depicted in figs. 1 and 2, be the utility model provide indoor two-way wired public address system circuit diagram, the interior Two-way wired public address system is included for sending or receiving the master controlling terminal device of audible signals, for sending or receive audible signals First from client device and for receiving the second of audible signals from client device, the master controlling terminal device, first from control end Device and second includes message processing module 10, transmitting-receiving words module 20, power amplifier chips, 30 and of supply module from client device Switching switch 40, the power amplifier chips include central processing unit 50, and the first pin of the central processing unit 50 is by series connection Electric capacity C2 is connected with the 8th pin after resistance R1 with central processing unit 50, the second pin of the central processing unit 50 and the 4th Pin is connected with the first pin of the transmitting-receiving telephone unit 20, and the second pin of the central processing unit 50 and the 4th pin simultaneously lead to The electric capacity C6 for crossing series connection is connected with the 5th pin after resistance R3 with central processing unit 50, and the resistance R3 is by electric capacity C3 and sound News processing unit 10 second pin be connected, the electric capacity C6 by series connection electric capacity C1 and resistance R2 after with the transmitting-receiving ticket The second pin of unit 20 is connected, the 3rd pin of the central processing unit 50 by electric capacity C4 also with the transmitting-receiving telephone unit 20 Second pin is connected, and the 7th pin of the central processing unit 50 is connected to the first of the transmitting-receiving telephone unit 20 by electric capacity C5 On pin, the 5th pin of the central processing unit 50 is connected to the transmitting-receiving ticket after the resistance R3 and electric capacity C6 of series connection On first pin of unit 20, the 6th pin of the central processing unit 50 connects the negative electrode of diode D1, the anode of diode D1 Connect the first pin of the supply module 30, the second pin connection of the supply module 30 is described to switch the 3rd of switch 40 Pin is simultaneously grounded, and the second pin of the switching switch 40 is connected on the tie point between the electric capacity C1 and electric capacity C6, institute The second pin for stating supply module 30 is also connected with first lead-out terminal, and the second pin of the message processing unit 10 is defeated with second Go out terminal to be connected, the second pin of wherein switching switch 40 is intercommunication button, carrying out propagandaing directed to communicate when being transformed into intercommunication button can be by Audible signals are passed.Preferably, the message processing unit 10 is loudspeaker, and the transmitting-receiving telephone unit 20 is microphone, The supply module 30 is the dc source that voltage is 9V, by wire by master controlling terminal device and first from client device or second It is connected from client device.

As shown in figure 1, the first pin of the of the present utility model first message processing unit 10 from client device and institute The first pin for stating switching switch 40 is connected, and first receives the output of master controlling terminal device from client device decapacitation, carries out amplifying broadcasting Put outer, moreover it is possible to carry out intercommunication response with master controlling terminal device.

As shown in Fig. 2 the first pin of the described second message processing unit 10 from client device is only exported with first Terminal is connected, and second can only receive the output of master controlling terminal device from client device, carry out the broadcasting that amplifies.

When being embodied as, on parlor or dining room wall, place a master controlling terminal device, other floors or room can lay from Client device, parlor personnel call other floors user, only need to press intercommunication button, propaganda directed to communicate against master controlling terminal device, other from Client device can hear that other floors personnel such as need response parlor personnel, press first from client device intercommunication button. Master controlling terminal device is deployed in parlor or dining room by the utility model, and first containing intercommunication function is deployed in each floor from client device Passageway, second without intercommunication function are deployed in room from client device, and the utility model compares existing wireless intercom system With wired building conversational system, simple structure, it is easy to accomplish, low production cost.

The above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art For personnel, on the premise of without departing from the utility model principle, some improvement and deformation can also be made, these improve and become Shape is also considered as protection domain of the present utility model.

Claims (6)

1. a kind of indoor two-way wired public address system, it is characterised in that include for sending or receive the main control end of audible signals Device, for sending or receive the first of audible signals from client device and for receiving the second of audible signals from control end dress Put, the master controlling terminal device, first include message processing module, transmitting-receiving words mould from client device and second from client device Block, power amplifier chips, supply module and switching switch, the power amplifier chips include central processing unit, the of the central processing unit One pin is connected with the 8th pin of central processing unit after the electric capacity C2 that connects and resistance R1, and the of the central processing unit Two pins and the 4th pin are connected with the first pin of the transmitting-receiving telephone unit, the second pin of the central processing unit and the 4th Pin is simultaneously connected with the 5th pin of central processing unit after the electric capacity C6 and resistance R3 of series connection, and the resistance R3 passes through electric capacity C3 is connected with the second pin of message processing unit, the electric capacity C6 by connect electric capacity C1 and resistance R2 after with the transmitting-receiving The second pin of telephone unit is connected, the 3rd pin of the central processing unit by electric capacity C4 also with the transmitting-receiving telephone unit the Two pins are connected, and the 7th pin of the central processing unit is connected to the first pin of the transmitting-receiving telephone unit by electric capacity C5 On, the 5th pin of the central processing unit is connected to the of the transmitting-receiving telephone unit after the resistance R3 that connects and electric capacity C6 On one pin, the 6th pin of the central processing unit connects the negative electrode of diode D1, and the anode of diode D1 connects the confession First pin of electric module, the second pin of the supply module connect the 3rd pin of the switching switch and are grounded, described The second pin of switching switch is connected on the tie point between the electric capacity C1 and electric capacity C6, and the second of the supply module draws Pin is also connected with first lead-out terminal, and the second pin of the message processing unit is connected with the second lead-out terminal.

2. the two-way wired public address system in interior as claimed in claim 1, it is characterised in that described first from client device Message processing unit the first pin with described switching switch the first pin be connected.

3. the two-way wired public address system in interior as claimed in claim 1, it is characterised in that described second from client device First pin of message processing unit is only connected with first lead-out terminal.

4. the two-way wired public address system in interior as claimed in claim 1, it is characterised in that the message processing unit is for raising one's voice Device.

5. the two-way wired public address system in interior as claimed in claim 1, it is characterised in that the transmitting-receiving telephone unit is Mike Wind.

6. the two-way wired public address system in interior as claimed in claim 1, it is characterised in that it is 9V that the supply module is voltage Dc source.