CN106877905A - A kind of talk-back host controls circuit - Google Patents
A kind of talk-back host controls circuit Download PDFInfo
- Publication number
- CN106877905A CN106877905A CN201510933150.2A CN201510933150A CN106877905A CN 106877905 A CN106877905 A CN 106877905A CN 201510933150 A CN201510933150 A CN 201510933150A CN 106877905 A CN106877905 A CN 106877905A
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- CN
- China
- Prior art keywords
- circuit
- power
- control circuit
- electric capacity
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
- H04Q5/245—Circuit arrangements in which for one subscriber low frequency speech and/or signalling signals proceed on the line, while for the other subscriber the low frequency speech and/or signalling signals are modulated upon a high frequency carrier signal
Abstract
The present invention provides a kind of talk-back host control circuit, including power circuit, access control circuit, carrier transmitting-receiving circuit, MIC discharge circuits and address code, the chip of the power circuit is TPS54331, the carrier transmitting-receiving circuit includes coupling coil TZ1, combination FET U1, common cathode switching diode D1 and diode TVS1, the chip of the power line carrier MCU is GENIE3, and power line carrier MCU is connected with address code, key control circuit, MIC discharge circuits, voice power amplifier, carrier transmitting-receiving circuit, access control circuit and power circuit respectively.This talk-back host control circuit need not be connected up in addition compared with common wireline Transmission system, save the line cost of costliness, the construction cost of track laying great number saved, while also saving the maintenance cost brought due to the factor such as line fault, aging.
Description
Technical field
The invention belongs to power-line carrier communication field, electricity is controlled more particularly, to a kind of talk-back host
Road.
Background technology
Building conversational system is talk-back host, the keeper of cell overall control center by each unit door gateway
Interphone extension in intercommunication exchange, antitheft door electric control lock and user family is made up of dedicated transmissions network, real
Existing visitor and resident family's intercommunication, the remote-controlled unlatching burglar-proof door of resident family, each unit building doorway visitor pass through intercommunication master
Machine calls resident family, and other side is allowed for access in building after agreeing to, enters so as to limit unauthorized person.Common
The transmission network that building conversational system is used all is to be laid to form with special wire cable, takes costliness
Line layout cost, due to the factor such as line fault, aging can also bring costliness maintenance cost, together
When also add the engineering time.
The content of the invention
In view of this, the present invention is directed to propose a kind of talk-back host control circuit, any without laying in addition
Circuit directly utilizes existing power line, and visitor can easily utilize antitheft door talk back entrance guard main frame and resident family
Indoor interphone extension call.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of talk-back host controls circuit, including：
Carry out master control, the power line carrier MCU for the treatment of；
Address code for depositing resident family's address information；
For the key control circuit of visitor's input resident family address code；
Voice signal is AD converted into by power line carrier MCU the MIC amplifiers electricity of data signal
Road；
Voice power amplifier for playing voice；
Receive and send the carrier transmitting-receiving circuit of power line carrier signal；
Control the access control circuit of antitheft door gate inhibition；
It is the power circuit of system power supply；
The power line carrier MCU respectively with the address code, key control circuit, MIC discharge circuits,
Voice power amplifier, carrier transmitting-receiving circuit, access control circuit are connected with power circuit.
Further, the carrier transmitting-receiving circuit includes coupling coil TZ1, combination FET U1 and two
Pole pipe TVS1, input signal IN1 enter the coupling coil after passing sequentially through electric capacity CZ1, inductance L2
The input of TZ1, in parallel described two between the 2nd pin and the 4th pin of the coupling coil TZ1
The two ends for stating diode TVS1 are connected in parallel on after pole pipe TVS1, resistance R3 and electric capacity C1 series connection,
The two ends of the electric capacity C1 shunt capacitance C2, inductance L3 and common cathode switching diode D1, PLCIN successively
Signal is by accessing common cathode switching diode D1, the 2nd pin of the coupling coil TZ1 after electric capacity C6
The input for combining FET U1, described group are accessed after passing sequentially through inductance L1 and electric capacity C3
Three tunnels of the 4th pin point of FET U1 are closed, the first via is followed by 12V power supplys, second by resistance R1
Road is followed by 12V power supplys by diode D1, the 3rd tunnel by being divided into two-way again after electric capacity C4, a-road-through
Cross and PLCOUT signals exported after resistance R4, separately lead up to after electric capacity C5 with combine FET U1's
2nd pin is connected, and the 1st pin of the combination FET U1 with combined field after resistance R2 by imitating
Should the 2nd pin of pipe U1 be connected, in the two ends parallel diodes D2 of the resistance R2.
Further, the chip of the power circuit is TPS54331.
Further, the chip of the power line carrier MCU is GENIE3.
Relative to prior art, talk-back host control circuit of the present invention has the advantage that：With it is general
Logical line transmission system is compared, and need not be connected up in addition by using power line transmission network, has saved costliness
Line cost, saved the construction cost of track laying great number, at the same also save due to line fault,
The factor such as aging and the maintenance cost brought so that whole system construct extremely simple, short construction period,
Instant effect.
Brief description of the drawings
The accompanying drawing for constituting a part of the invention is used for providing a further understanding of the present invention, of the invention
Schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.
In accompanying drawing：
Fig. 1 is theory diagram of the invention；
Fig. 2 is the circuit diagram of MIC discharge circuits in the present invention；
Fig. 3 is the circuit diagram of voice power amplifier in the present invention；
Fig. 4 is the circuit diagram of power circuit in the present invention；
Fig. 5 is the circuit diagram of key control circuit in the present invention；
Fig. 6 is the circuit diagram of carrier transmitting-receiving circuit in the present invention；
Fig. 7 is the circuit diagram of power line carrier MCU in the present invention；
Fig. 8 is the circuit diagram of access control circuit in the present invention.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the spy in embodiment
Levying to be mutually combined.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Fig. 1 to Fig. 8 a kind of talk-back host control circuit, including：Carry out the electricity of master control treatment
Line of force carrier wave MCU, the address code for depositing resident family's address information, for visitor's input resident family address code
Key control circuit, voice signal is AD converted into data signal by power line carrier MCU
MIC discharge circuits, the voice power amplifier for playing voice, receive and send power line on carrier wave
The carrier transmitting-receiving circuit of signal, the access control circuit and the power supply for system power supply that control antitheft door gate inhibition
Circuit, the power line carrier MCU is electric with the address code, key control circuit, MIC amplifiers respectively
Road, voice power amplifier, carrier transmitting-receiving circuit, access control circuit are connected with power circuit, the electricity
The chip of source circuit is TPS54331, and the chip of the power line carrier MCU is GENIE3.
The carrier transmitting-receiving circuit includes coupling coil TZ1, combination FET U1 and diode TVS1,
Input signal IN1 passes sequentially through the input for entering the coupling coil TZ1 after electric capacity CZ1, inductance L2,
The diode TVS1 in parallel, resistance between the 2nd pin and the 4th pin of the coupling coil TZ1
The two ends for stating diode TVS1 are connected in parallel on after R3 and electric capacity C1 series connection, the two of the electric capacity C1
Shunt capacitance C2, inductance L3 and common cathode switching diode D1, PLCIN signal pass through electric capacity C6 successively at end
Common cathode switching diode D1 is accessed afterwards, and the 2nd pin of the coupling coil TZ1 passes sequentially through inductance L1
With the input that the combination FET U1 is accessed after electric capacity C3, the combination FET U1's
4th pin point, three tunnels, the first via is followed by 12V power supplys by resistance R1, and the second tunnel passes through diode D1
12V power supplys are followed by, the 3rd tunnel exports by being divided into two-way again after electric capacity C4 after leading up to resistance R4
PLCOUT signals, are connected after separately leading up to electric capacity C5 with the 2nd pin for combining FET U1, institute
The 1st pin of combination FET U1 is stated by being managed with combine FET U1 the 2nd after resistance R2
Pin is connected, in the two ends parallel diodes D2 of the resistance R2.
The course of work of this example：Visitor is input into the address code of resident family by key control circuit, calls
Family, after resident family connects, visitor is entered voice signal by power line carrier MCU by MIC discharge circuits
Row AD conversion is loaded on power line into data signal by carrier transmitting-receiving circuit, is transmitted in resident family room
Interphone extension.Conversely, carrier transmitting-receiving circuit receives the power line voice from interphone extension in resident family room
Carrier signal, parses by power line carrier MCU, carries out DAC and changes into analog voice signal to voice
Power amplifier broadcasts out, enables call mutually.If resident family agrees to open antitheft door, carrier wave is received
Power Generation Road can receive the control signal from resident family's extension, be decoded by power line carrier MCU,
Antitheft door is opened to one signal of access control circuit.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all at this
Within the spirit and principle of invention, any modification, equivalent substitution and improvements made etc. should be included in
Within protection scope of the present invention.
Claims (4)
1. a kind of talk-back host controls circuit, it is characterised in that：Including：
Carry out master control, the power line carrier MCU for the treatment of；
Address code for depositing resident family's address information；
For the key control circuit of visitor's input resident family address code；
Voice signal is AD converted into by power line carrier MCU the MIC amplifiers electricity of data signal
Road；
Voice power amplifier for playing voice；
Receive and send the carrier transmitting-receiving circuit of power line carrier signal；
Control the access control circuit of antitheft door gate inhibition；
It is the power circuit of system power supply；
The power line carrier MCU respectively with the address code, key control circuit, MIC discharge circuits,
Voice power amplifier, carrier transmitting-receiving circuit, access control circuit are connected with power circuit.
2. a kind of talk-back host according to claim 1 controls circuit, it is characterised in that：It is described
Carrier transmitting-receiving circuit includes coupling coil TZ1, combination FET U1 and diode TVS1, input letter
Number IN1 passes sequentially through the input for entering the coupling coil TZ1 after electric capacity CZ1, inductance L2, in institute
State the diode TVS1 in parallel between the 2nd pin of coupling coil TZ1 and the 4th pin, resistance R3
The two ends for stating diode TVS1 are connected in parallel on after being connected with electric capacity C1, at the two ends of the electric capacity C1
Shunt capacitance C2, inductance L3 and common cathode switching diode D1, PLCIN signal pass through electric capacity C6 successively
Common cathode switching diode D1 is accessed afterwards, and the 2nd pin of the coupling coil TZ1 passes sequentially through inductance L1
With the input that the combination FET U1 is accessed after electric capacity C3, the combination FET U1's
4th pin point, three tunnels, the first via is followed by 12V power supplys by resistance R1, and the second tunnel passes through diode D1
12V power supplys are followed by, the 3rd tunnel exports by being divided into two-way again after electric capacity C4 after leading up to resistance R4
PLCOUT signals, are connected after separately leading up to electric capacity C5 with the 2nd pin for combining FET U1, institute
The 1st pin of combination FET U1 is stated by being managed with combine FET U1 the 2nd after resistance R2
Pin is connected, in the two ends parallel diodes D2 of the resistance R2.
3. a kind of talk-back host according to claim 1 and 2 controls circuit, it is characterised in that：
The chip of the power circuit is TPS54331.
4. a kind of talk-back host according to claim 1 and 2 controls circuit, it is characterised in that：
The chip of the power line carrier MCU is GENIE3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933150.2A CN106877905A (en) | 2015-12-14 | 2015-12-14 | A kind of talk-back host controls circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933150.2A CN106877905A (en) | 2015-12-14 | 2015-12-14 | A kind of talk-back host controls circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106877905A true CN106877905A (en) | 2017-06-20 |
Family
ID=59238623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510933150.2A Pending CN106877905A (en) | 2015-12-14 | 2015-12-14 | A kind of talk-back host controls circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106877905A (en) |
-
2015
- 2015-12-14 CN CN201510933150.2A patent/CN106877905A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |
|
| WD01 | Invention patent application deemed withdrawn after publication |