CN206077599U - Building conversational system - Google Patents
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- CN206077599U CN206077599U CN201621101888.9U CN201621101888U CN206077599U CN 206077599 U CN206077599 U CN 206077599U CN 201621101888 U CN201621101888 U CN 201621101888U CN 206077599 U CN206077599 U CN 206077599U
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Abstract
The utility model discloses a kind of building conversational system, including：Indoor set, at least one off-premises station and bus positive, wherein, indoor set, off-premises station are connected with bus positive, and indoor set includes main indoor set and at least one secondary indoor set, main indoor set is for controlling the communication of itself and secondary indoor set and off-premises station, and powers for off-premises station；Main indoor set includes the first coding-decoding circuit.The building conversational system that this utility model is provided, power supply and the common cabling of communication, indoor set is articulated in bus positive with off-premises station, controls its communication with off-premises station by main indoor set, and provides power supply for off-premises station, engineering construction and wiring are simple, the hardware mode simplicity of power supply and communication superposition is realized, in the case where many indoor sets are to many off-premises stations, directly indoor set and off-premises station is articulated on bus positive, extra intermediate equipment need not be added, can reduce the cost output.
Description
Technical field
This utility model is related to building technical field of security, more particularly to a kind of building conversational system.
Background technology
At present, on the market building talkback door bell and button system species is various, and implementation method is different, all respectively has pluses and minuses.
Building talkback door bell and button system is mainly comprised the following steps：Indoor set, off-premises station, adapter, gate inhibition etc..Draw by video is whether there is
Face, can be divided into non-visual and visible building intercommunication door bell system；By implementation, wireless and wired building talkback doorbell can be divided
System；By transmission technology characteristic, analog- and digital- building talkback door bell and button system can be divided.Current non-video talk-back door bell is still
Occupy the larger market share, because the system is not required to carry out video pictures transmission, therefore the intercommunication door bell system low cost, while operation
It is convenient, but, the system schema can not clearly distinguish client face in call because checking outdoor ambient conditions
Looks, so the intercommunication door bell system has certain potential safety hazard；Wireless talkback door bell system Practical Project construction in more just
Victory, wiring are simple, while cost is reduced, but, the program presently, there are certain stability problem, easily be disturbed shadow
Ring；Numeric type building talkback doorbell also slowly grows up in recent years, and the system leaves the experience sense of client for more preferably, and quality is more
Height, corresponding cost are also higher.
Wired video talk-back door bell has following several electric signals：It is bus positive, bus negative, audio frequency, video, logical
Letter.For reduces cost, simplify design circuit, and facilitate engineering construction, by technological means, can will be some of them signal whole
Superposition is closed, wiring quantity is reduced.
At present, technical scheme common on the market has five-wire system, i.e. bus positive, bus negative, audio frequency, video, communication
Single line is adopted respectively；Four-wire system then takes superposing means, and for example communication and the common single line of power supply, communication and audio frequency are common one
Common single line of line, communication and video etc..Four-wire system is more to take communication and power supply to be superimposed the scheme of common single line, but,
At present communication is added on bus positive, circuit design is more complicated, and cost is all higher.Fig. 1 is that current conventional four-wire system is more
System wiring figure of the indoor set to many off-premises stations, from figure 1 it appears that the system to need intermediate equipment to realize multipair multi-functional,
System power supply is complicated, and engineering connection is more, reduces efficiency and increased cost.
Utility model content
This utility model provides a kind of building conversational system, to solve in prior art using communication and power sharing one
The mode of root cabling causes complex circuit designs, the technical problem of high cost.
This utility model provides a kind of building conversational system, including：Indoor set, at least one off-premises station and bus positive,
Wherein, indoor set, off-premises station are connected with bus positive, and indoor set includes main indoor set and at least one secondary indoor set, main chamber
Interior machine for controlling the communication of itself and secondary indoor set and off-premises station by bus positive, and powers for off-premises station；Main indoor set
Including for sending signal of communication and gather the first coding-decoding circuit of feedback information；
Wherein, the first coding-decoding circuit includes being connected with bus positive tie point, the second branch road, the 3rd branch road and
Four branch roads, wherein, tie point includes the first audion, the first diode, the first stabilivolt and first resistor, the first audion
Emitter stage be connected with the positive pole of the first diode, the negative pole of the first diode is connected with bus positive, the base of the first audion
Pole is connected with the positive pole of the first stabilivolt, and the negative pole of the first stabilivolt is connected with the colelctor electrode of the first audion, first resistor one
End is connected with the base stage of the first audion, other end ground connection；
Second branch road includes field effect transistor, second resistance and the second stabilivolt, the drain electrode of field effect transistor with and source electrode with
Bus positive is connected, and the second stabilivolt and second resistance are connected in parallel on the source electrode and grid of field effect transistor, the second stabilivolt it is negative
Pole is also connected with the negative pole of the first stabilivolt；
3rd branch road includes the second diode, the second audion and 3rd resistor, the negative pole of the second diode and the two or three
The base stage of pole pipe is connected, and the colelctor electrode of the second audion is connected with 3rd resistor, the grounded emitter of the second audion, and the 3rd is electric
Resistance is also connected with the grid of field effect transistor；
4th branch road includes the 3rd diode, the 4th resistance, the 3rd audion, the 3rd stabilivolt and the 5th resistance, the 3rd
The negative pole of diode is connected with the 4th resistance, and the 4th resistance other end is connected with the base stage of the 3rd audion, the 3rd audion
Colelctor electrode is connected with the positive pole of the 3rd stabilivolt, and the negative pole of the 3rd stabilivolt is connected with the 5th resistance, the other end of the 5th resistance
It is connected with bus positive, the grounded emitter of the 3rd audion.
Further, off-premises station and secondary indoor set are all included for decoding communication signals and the second of send feedback information compiles
Decoding circuit.
Further, the second coding-decoding circuit includes decoding circuit and time code circuit, wherein, decoding circuit includes the four or two
Pole pipe, the 4th audion, the 9th resistance, the 5th audion, the first optocoupler, the 11st resistance and the first electric capacity being sequentially connected in series,
5th branch road of the 6th resistance, the 7th resistance, the 8th resistance and the tenth resistance composition, first electric capacity one end and bus positive phase
Even, the other end is connected with the 6th resistance, the positive pole and the 6th resistance of the 4th diode and the 7th resistor coupled in parallel and the 4th diode
It is connected, the base stage of the 4th audion is connected with the positive pole of the 4th diode, and emitter stage is connected with the negative pole of the 4th diode, current collection
Pole is connected with the 9th resistance one end, and the 9th resistance other end is connected with the base stage of the 5th audion, the colelctor electrode of the 5th audion
It is connected with the tenth resistance, emitter stage is connected with the first optocoupler anode, and the minus earth of the first optocoupler, colelctor electrode connect external power source,
Emitter stage is connected with the 11st resistance；
Return code circuit include the 12nd resistance, the 13rd resistance, the 6th audion, the 14th resistance, the 15th resistance, the
16 resistance, the second optocoupler and the 17th resistance, the 12nd resistance one end are connected with bus positive, the other end and the 6th audion
Colelctor electrode be connected, the 13rd resistance and the 12nd resistor coupled in parallel, the emitter stage of the 6th audion and the 14th resistance one end phase
Even, colelctor electrode is connected with the 15th resistance one end, and the 14th resistance other end is grounded, the 15th resistance other end and the second optocoupler
Emitter stage be connected, the colelctor electrode of the second optocoupler is connected with the 16th resistance, and the anode of the second optocoupler connects external power source, negative electrode and
17th resistance is connected.
The building conversational system that this utility model is provided, power supply and the common cabling of communication, indoor set are mounted with off-premises station
In bus positive, its communication with off-premises station is controlled by main indoor set, and power supply is provided for off-premises station, engineering construction and connect
Line is simple, realizes the hardware mode simplicity of power supply and communication superposition, in the case where many indoor sets are to many off-premises stations, directly by room
Interior machine and off-premises station are articulated on bus positive, it is not necessary to add extra intermediate equipment, and can reduce the cost output.
Description of the drawings
Fig. 1 is system wiring figure of the current conventional many indoor sets of four-wire system to many off-premises stations；
Building conversational system structural representations of the Fig. 2 for this utility model embodiment one；
First coding-decoding circuit figures of the Fig. 3 for this utility model embodiment two；
Decoding circuit figures of Fig. 4 a for this utility model embodiment two；
Time code circuit diagrams of Fig. 4 b for this utility model embodiment two.
Specific embodiment
Accompanying drawing is combined below by specific embodiment to be described in further detail this utility model.This utility model can
Realize with many different forms, however it is not limited to the embodiment described by the present embodiment.Embodiment party in detail below is provided
The purpose of formula is easy for becoming apparent from this utility model disclosure thorough explanation, the wherein indicating position such as upper and lower, left and right
Words be only for shown structure in respective figure for position.
However, those skilled in the art may be aware that one or more detail description can be by
Omit, or can also be using other methods, component or material.In some instances, some embodiments are not described
Or be not described later in detail.
Additionally, technical characteristic described herein, technical scheme can also in one or more embodiments arbitrarily closing
Suitable mode is combined.For a person skilled in the art, it is easy to understand with provided herein is embodiment relevant method
Step or operation order can also change.Therefore, any order in drawings and Examples is merely illustrative purposes, not secretly
Show requirement in a certain order, required according to a certain order unless expressly stated.
It is part institute serialization number itself, such as " first ", " second " etc. herein, is only used for distinguishing described object,
There are no any order or art-recognized meanings.And " connection ", " connection " described in this utility model, if no special instructions, including straight
Connect and be indirectly connected with (couple).
Fig. 2 is refer to, the present embodiment provides a kind of building conversational system, including：Indoor set 1, at least one off-premises station 2,
Bus positive 3, wherein, indoor set 1, off-premises station 2 are connected with bus positive 3, and indoor set 1 includes main indoor set 1A, in main chamber
Machine 1A is used to control its communication with off-premises station 2 by bus positive 3, and powers for off-premises station 2.
Further, also including at least one secondary indoor set 1B, main indoor set 1A is additionally operable to by bus positive indoor set 1
3 control communications of the pair between indoor set 1B and off-premises station 2.
Power supply and the common cabling of communication in the present embodiment, i.e., using bus positive 3 as power supply and order wire, indoor set 1
It is articulated on bus positive 3 with off-premises station 2, while indoor set 1 and off-premises station 2 are connected with bus negative (i.e. ground wire 4),
The information exchange of indoor set 1 and off-premises station 2 is realized by bus positive 3, off-premises station 2 is powered by main indoor set 1A.Only one
Indoor set 1 is set to main indoor set 1A, and other indoor sets 1 are that secondary indoor set 1B, main indoor set 1A are the main control parts of communication, and
And main indoor set 1A is responsible for the instruction initiation of whole system communication and instructs transfer, main indoor set 1A adopts pulse width modulation mode reality
Now communicate, off-premises station 2 carries out decoding to recognize instruction to the signal on bus positive 3, while being returned from specific position
Oneself state or request, main indoor set 1A are focused on to the information for feeding back.In the entire system, indoor set 1 has
Only there was only a main indoor set 1A, but allow multiple stage pair indoor set 1B and multiple stage off-premises station 2 to exist.
The building conversational system of the present embodiment can take four-wire system, power supply and the common cabling of communication, audio frequency, video, power supply
Bear independent cabling.Voice ＆ Video takes independent cabling, is conducive to avoiding from extraneous interference, and video is independent can be increased
Strong system capacity of resisting disturbance, improves speech quality；Engineering construction and wiring are simple, realize the hardware mode of power supply and communication superposition
Indoor set 1 and off-premises station 2 more than 1 pair in the case of off-premises station 2, are directly articulated on bus positive 3 i.e. by simplicity in many indoor sets
Can, it is not necessary to add extra intermediate equipment, can reduce the cost output.
Main indoor set 1A is included for sending signal of communication and gathering the first coding-decoding circuit of feedback information.Off-premises station
2 and pair indoor set 1B include the second coding-decoding circuit for decoding communication signals send feedback information.
The first as shown in Figure 3 coding-decoding circuit, including the tie point being connected with bus positive, the second branch road, the 3rd
Branch road and the 4th branch road, wherein, tie point includes the first audion Q20, the first diode D14, the first stabilivolt Z4 and
One resistance R97, the emitter stage of the first audion Q20 are connected with the positive pole of the first diode D14, the negative pole of the first diode D14
It is connected with bus positive, the base stage of the first audion Q20 is connected with the positive pole of the first stabilivolt Z4, the negative pole of the first stabilivolt Z4
It is connected with the colelctor electrode of the first audion Q20, first resistor R97 one end is connected with the base stage of the first audion Q20, another termination
Ground；
Second branch road includes field effect transistor Q22, second resistance R12 and the second stabilivolt Z3, the drain electrode of field effect transistor Q22 with
It is connected with bus positive with source electrode, the second stabilivolt Z3 and second resistance R12 are connected in parallel on the source electrode and grid of field effect transistor Q22
Pole, the negative pole of the second stabilivolt Z3 are also connected with the negative pole of the first stabilivolt Z4；
3rd branch road includes the second diode D4, the second audion Q9 and 3rd resistor R67, the negative pole of the second diode D4
It is connected with the base stage of the second audion Q9, the colelctor electrode of the second audion Q9 is connected with 3rd resistor R67, the second audion Q9's
Grounded emitter, 3rd resistor R67 are also connected with the grid of field effect transistor Q22；
4th branch road includes the 3rd diode D5, the 4th resistance R22, the 3rd audion Q10, the 3rd stabilivolt Z5 and the 5th
Resistance R26, the negative pole of the 3rd diode D5 are connected with the 4th resistance R22, the 4th resistance R22 other ends and the 3rd audion Q10
Base stage be connected, the colelctor electrode of the 3rd audion Q10 is connected with the positive pole of the 3rd stabilivolt Z5, the negative pole of the 3rd stabilivolt Z5 and
5th resistance R26 is connected, and the other end of the 5th resistance R26 is connected with bus positive, the grounded emitter of the 3rd audion Q10.
The partial circuit function is：Signal of communication is sent to secondary indoor set 1B and off-premises station 2, while gather them being fed back
The information returned.Under main indoor set 1A ideal cases, Q20 and Q22 is simultaneously turned on to L+ for BUS+ voltages, and main indoor set 1A needs
During communication, Q22 is closed, Q10 is turned on, and moves 3 power supply of bus positive to Vol_L from BUS+, forms a voltage difference, with arteries and veins
Wide modulation system realizes communication, and after external equipment (secondary indoor set 1B and/or off-premises station) decoding, meeting is according to whether related to oneself
Operation is made, code is returned if related to oneself, main indoor set 1A obtains back code information by single-chip microcomputer sampling, and does next step
Operation.Above-mentioned first coding-decoding circuit is simple, realizes indoor set 1 with off-premises station 2 by pulsewidth modulation and single-chip microcomputer sampling
Communication, and communication stability is good, while also reducing the high cost of indoor set 1.As Fig. 4 a-4b show the second encoding and decoding electricity
Road, the second coding-decoding circuit includes decoding circuit and returns code circuit, and wherein Fig. 4 a are decoding circuit, and Fig. 4 b are back code circuit, its
In, decoding circuit include the 4th diode D1, the 4th audion Q4, the 9th resistance R49, the 5th audion Q6, the first optocoupler U5,
11st resistance R23 and the first electric capacity C2 being sequentially connected in series, the 6th resistance R18, the 7th resistance R19, the 8th resistance R7 and the tenth
5th branch road of resistance R8 compositions, first electric capacity C2 one end is connected with bus positive, the other end is connected with the 6th resistance R18, the
Four diode D1 and the 7th resistance R19 are in parallel and positive pole of the 4th diode D1 is connected with the 6th resistance R18, the 4th audion Q4
Base stage be connected with the positive pole of the 4th diode D1, emitter stage is connected with the negative pole of the 4th diode D1, and colelctor electrode is electric with the 9th
Resistance R49 one end is connected, and the 9th resistance R49 other ends are connected with the base stage of the 5th audion Q6, the colelctor electrode of the 5th audion Q6
It is connected with the tenth resistance R8, emitter stage is connected with the first optocoupler U5 anodes, and the minus earth of the first optocoupler U5, colelctor electrode connect outside
Power supply, emitter stage are connected with the 11st resistance R23；
Return code circuit include the 12nd resistance R60, the 13rd resistance R61, the 6th audion Q30, the 14th resistance R62,
15th resistance R63, the 16th resistance R64, the second optocoupler U8 and the 17th resistance R13, the 12nd resistance R60 one end and bus
Positive pole is connected, and the other end is connected with the colelctor electrode of the 6th audion Q30, and the 13rd resistance R61 is in parallel with the 12nd resistance R60,
The emitter stage of the 6th audion Q30 is connected with the 14th resistance R62 one end, and colelctor electrode is connected with the 15th resistance R63 one end, the
The 14 resistance R62 other ends are grounded, and the 15th resistance R63 other ends are connected with the emitter stage of the second optocoupler U8, the second optocoupler U8
Colelctor electrode be connected with the 16th resistance R64, the anode of the second optocoupler U8 connects external power source, negative electrode and the 17th resistance R13 phases
Even.
In decoding circuit, 3 voltage BUS+ to Vol_L of bus positive (in figure 3, the 3rd audion Q10 conductings so that the
Voltage is surely arrived three stabilivolt Z5 Vol_L) saltus step, the first electric capacity C2 two ends pressure reduction is constant, the 6th resistance R18 and the 7th resistance
R19 partial pressures cause the 4th audion Q4 to turn on, and the 5th audion Q6 is also switched on, after the 5th audion Q6 conductings, the first optocoupler U5
In diode current flow the first optocoupler U5 colelctor electrodes are turned on to emitter stage, it is high that VCC is sent to DECODE outputs；Conversely, the 4th
Audion Q4 is not turned on, and the 5th audion Q6 and the first optocoupler U5 are not turned on so that DECODE falls down to the ground and exports low.
Return code circuit：Secondary indoor set 1B or the control FEEDBACK2 output height of off-premises station 2, the second optocoupler U8 and the six or three pole
Pipe Q30 is turned on, sourcing current (the second optocoupler U8 conductings, the 18th resistance R59 and the 16th resistance R64 partial pressures so that the 18th is electric
Resistance R59 both end voltages are certain, and because the 6th audion Q30 base currents are less, the 15th resistance R63 voltages are less, the six or three pole
Pipe Q30 bases emitter voltage is certain, and last 18th resistance R59 both end voltages deduct the 15th resistance R63 and the 6th audion Q30
Base emitter voltage voltage, it can be deduced that the 14th resistance R62 both end voltages are poor, and the 14th resistance R62 resistance is less, therefore can be with
So that electric current is larger, cause electric current on L+ lines larger, referred to as sourcing current) feed back to main indoor set 1A.
Further, indoor set 1 includes the first coding-decoding circuit and the second coding-decoding circuit simultaneously, when indoor set 1 is arranged
Based on indoor set 1A when just can use the first coding-decoding circuit, secondary indoor set 1B only use the second coding-decoding circuit.
Further, said system also includes the power supply for the power supply of indoor set 1.Indoor set 1 is provided with power supply electricity
Source, only off-premises station 2 are powered by main indoor set 1A indoor sets 1.Power supply can be powered using power supply adaptor.
Hereinafter the operation principle of above-mentioned building conversational system is described.
Off-premises station 2 calls indoor set 1：Off-premises station 2 sends call request to main indoor set 1A by bus positive 3.In sky
Under not busy state, off-premises station 2 sends call request to main indoor set 1A by 3 sourcing current of bus positive.
After main indoor set 1A receives call request, send to bus positive 3 and patrol and examine instruction.Main indoor set 1A is from bus positive
Monitor on 3 that other equipment (i.e. off-premises station 2) has request signal, main indoor set 1A sends to bus positive 3 and patrols and examines instruction.Main chamber
Instruction, confirming call instruction and monitor command are including but not limited to patrolled and examined in the instruction that interior machine 1A sends, and all instructions include letter
Xi Qu and Hui Ma areas, wherein, the information area includes recognizing head, three parts of accessed geocoding and order that Hui Ma areas are used for interviewed
Ask that the equipment of address number returns to main indoor set 1A oneself states.
The off-premises station 2 for sending call request is patrolled and examined after instruction from the reception of bus positive 3, is sent first time to bus positive 3
Code information.Send call request equipment (being now off-premises station 2) receive patrol and examine instruction after, patrolling and examining instruction the information area accuse
The geocoding of main indoor set 1A oneself is told, main indoor set 1A sends to the address again and patrols and examines instruction, and off-premises station is received for 2 second
Patrol and examine instruction Hou Huima areas and return the state (now state is " calling ") of oneself, what off-premises station 2 was returned believes for first time code
Breath.
Main indoor set 1A sends confirming call instruction to bus positive 3 after receiving first time code information, while main indoor set
1A jingle bells simultaneously open video.Main indoor set 1A receives first time code information of the return of off-premises station 2 from bus positive 3 and parses
Afterwards, confirming call instruction is sent to the off-premises station 2 for sending call request by bus positive 3, main indoor set 1A elder generation's jingle bells are simultaneously beaten
Video is opened, off-premises station 2 opens photographic head, wait indoor set to answer.
In the presence of secondary indoor set 1B, secondary indoor set 1B receives confirming call instruction from bus positive 3 to this step
Jingle bell open video afterwards.
Off-premises station 2 opens photographic head, waits indoor set to answer.
Secondary indoor set 1B monitors 2 step of off-premises station：Secondary indoor set 1B sends monitoring to main indoor set 1A by bus positive 3 please
Seek signal.Indoor set 1B secondary first draws 3 electric current of bus positive, to send monitoring request signal to main indoor set 1A.
After main indoor set 1A receives monitoring request signal, send to bus positive 3 and patrol and examine instruction.In main chamber
Machine 1A sends to bus positive 3 after receiving monitoring request signal and patrols and examines instruction.
Secondary indoor set 1B is received after patrolling and examining instruction, sends the 3rd time code information to bus positive 3.Secondary indoor set 1B is right
Code is drawn in the information area answered, and tells the geocoding of main indoor set 1A oneself, i.e., send the 3rd time code information to bus positive 3.
Main indoor set 1A sends monitor command to bus positive 3 according to the 3rd time code information.Main indoor set 1A receives the 3rd
After returning code information, sent to the geocoding in the 3rd time code information again and patrol and examine instruction, secondary indoor set 1B is returned in Hui Ma areas
The state (being now monitored state) of oneself, main indoor set 1A send monitor command to off-premises station 2.
After off-premises station 2 receives monitor command, open photographic head and the 4th time code information is sent to bus positive 3.It is outdoor
Machine 2 receives from bus positive 3 and open after monitor command photographic head and return the state (i.e. monitored state) of oneself, i.e., to bus just
Pole 3 sends the 4th time code information.
Main indoor set 1A sends monitoring to the secondary indoor set 1B for sending monitoring request signal according to the 4th time code information and confirms
Instruction, to set up the passage that secondary indoor set 1B monitors off-premises station 2.Main indoor set 1A is monitored to application after receiving the 4th time code information
Secondary indoor set 1B send monitoring and confirm instruction, to set up the passage that secondary indoor set 1B monitors off-premises station 2.
Main indoor set 1A monitors off-premises station 2：Main indoor set 1A sends monitoring request to off-premises station 2 by bus positive 3 and refers to
Order.
Off-premises station 2 sends second time code information to bus positive 3, whether returns oneself in idle condition；
If all off-premises stations 2 are all in idle condition, main indoor set 1A sends monitoring to bus positive 3 and confirms instruction；
Off-premises station 2 is received from bus positive 3 after monitoring confirms instruction and opens photographic head, is looked into for main indoor set 1A successively
See.Indoor set 1A main first sends monitoring request instruction to off-premises station 2, and off-premises station 2 returns whether oneself is in idle condition, if
Main indoor set 1A receives all off-premises stations 2 all in idle condition, then main indoor set 1A sends monitoring and confirms instruction, off-premises station 2
Open photographic head after receiving successively, main indoor set 1A can switch successively and check each off-premises station 2.
Above content is with reference to specific embodiment further detailed description of the utility model, it is impossible to assert
It is of the present utility model to be embodied as being confined to these explanations.For this utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, some simple deduction or replace can also be made.
Claims (3)
1. a kind of building conversational system, it is characterised in that include：Indoor set, at least one off-premises station and bus positive, wherein,
Indoor set, off-premises station are connected with bus positive, and indoor set includes main indoor set and at least one secondary indoor set, and master is used for indoor machine
In the communication that itself and secondary indoor set and off-premises station are controlled by bus positive, and power for off-premises station；Main indoor set includes using
In sending signal of communication and gather the first coding-decoding circuit of feedback information；
Wherein, the first coding-decoding circuit includes being connected with bus positive tie point, the second branch road, the 3rd branch road and the 4th
Road, wherein, tie point includes the first audion, the first diode, the first stabilivolt and first resistor, and the first audion is sent out
Emitter-base bandgap grading is connected with the positive pole of the first diode, and the negative pole of the first diode is connected with bus positive, the base stage of the first audion with
The positive pole connection of the first stabilivolt, the negative pole of the first stabilivolt is connected with the colelctor electrode of the first audion, first resistor one end and
The base stage connection of the first audion, other end ground connection；
Second branch road includes field effect transistor, second resistance and the second stabilivolt, the drain electrode of field effect transistor with and source electrode and bus
Positive pole is connected, and the second stabilivolt and second resistance are connected in parallel on the source electrode and grid of field effect transistor, and the negative pole of the second stabilivolt is also
It is connected with the negative pole of the first stabilivolt；
3rd branch road includes the second diode, the second audion and 3rd resistor, the negative pole of the second diode and the second audion
Base stage be connected, the colelctor electrode of the second audion is connected with 3rd resistor, the grounded emitter of the second audion, and 3rd resistor is also
It is connected with the grid of field effect transistor；
4th branch road includes the 3rd diode, the 4th resistance, the 3rd audion, the 3rd stabilivolt and the 5th resistance, the three or two pole
The negative pole of pipe is connected with the 4th resistance, and the 4th resistance other end is connected with the base stage of the 3rd audion, the current collection of the 3rd audion
Pole is connected with the positive pole of the 3rd stabilivolt, and the negative pole of the 3rd stabilivolt is connected with the 5th resistance, the other end of the 5th resistance with it is total
Line positive pole is connected, the grounded emitter of the 3rd audion.
2. building conversational system as claimed in claim 1, it is characterised in that off-premises station and secondary indoor set are all included for decoding
Second coding-decoding circuit of signal of communication send feedback information.
3. building conversational system as claimed in claim 2, it is characterised in that the second coding-decoding circuit includes decoding circuit and returns
Code circuit, wherein, decoding circuit include the 4th diode, the 4th audion, the 9th resistance, the 5th audion, the first optocoupler, the
The 5th of 11 resistance and the first electric capacity being sequentially connected in series, the 6th resistance, the 7th resistance, the 8th resistance and the tenth resistance composition
Road, first electric capacity one end is connected with bus positive, the other end is connected with the 6th resistance, the 4th diode and the 7th resistor coupled in parallel and
The positive pole of the 4th diode is connected with the 6th resistance, and the base stage of the 4th audion is connected with the positive pole of the 4th diode, emitter stage
It is connected with the negative pole of the 4th diode, colelctor electrode is connected with the 9th resistance one end, the 9th resistance other end and the 5th audion
Base stage is connected, and the colelctor electrode of the 5th audion is connected with the tenth resistance, and emitter stage is connected with the first optocoupler anode, the first optocoupler
Minus earth, colelctor electrode connect external power source, and emitter stage is connected with the 11st resistance；
Return code circuit include the 12nd resistance, the 13rd resistance, the 6th audion, the 14th resistance, the 15th resistance, the 16th
Resistance, the second optocoupler and the 17th resistance, the 12nd resistance one end are connected with bus positive, the collection of the other end and the 6th audion
Electrode is connected, the 13rd resistance and the 12nd resistor coupled in parallel, and the emitter stage of the 6th audion is connected with the 14th resistance one end, collection
Electrode is connected with the 15th resistance one end, the 14th resistance other end ground connection, the 15th resistance other end and the second optocoupler
Emitter-base bandgap grading is connected, and the colelctor electrode of the second optocoupler is connected with the 16th resistance, and the anode of the second optocoupler connects external power source, negative electrode and the tenth
Seven resistance are connected.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724206A (en) * | 2019-01-11 | 2019-05-07 | 青岛海信日立空调系统有限公司 | Air-conditioner set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724206A (en) * | 2019-01-11 | 2019-05-07 | 青岛海信日立空调系统有限公司 | Air-conditioner set |
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Address after: 518000 6th floor, building 3, Nanyou 4th Industrial Zone, Nanshan Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Sanjiang Intelligent Control Technology Co.,Ltd. Address before: 518054 6th floor, building 3, Nanyou 4th Industrial Zone, Nanshan Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN FANHAI SANJIANG TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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