CN2156634Y - Program control residance telephone multi-function multiplexing device - Google Patents

Abstract

The utility model relates to an improved small program-control exchanger, which is composed of an exchange network and extension control circuit, a ringing circuit, a busy tone circuit, a power supply, a control processor which receives and processes various information and a digit reception circuit which is connected with a dual tone frequency / pulse and takes the control processor as core, a state detecting circuit, a charging circuit, a multifunctional interface circuit for connecting a multifunctional device. The utility model relates to a program-control residence telephone multi-function multiplexing device which is the combination of telephone switching, switch charging and alarm, and which is suitable for resident telephones in use; without increasing circuits, a telephone line can be connected with three extensions, which is especially adapted for districts where lines are not enough and residential districts.

Description

Program control residance telephone multi-function multiplexing device

The utility model relates to a kind of improved small-sized program control transcriber, and use in the area that is specially adapted to residential neighborhoods and machine wire apparatus anxiety.

Existing small program-control exchanger is applicable to middle-size and small-size enterprises and institutions, and it mainly is satisfied with the needs of self INCOM intercom, also can breathe out by the local telephone network relaying, incoming call, but then have following problems will be used in dwelling house the time: 1, the number of joining complexity, generally need 2～4.2, the user uses inconvenience, needs when particularly dialling outside line to dial 0 earlier.3, the inner exchanging telephone traffic is little, and it is single to be used for family's function of use, is not applicable to the message accounting of residential customer again.Chinese patent CN2082931U provides a kind of collinear two-shipper code phone controller, it is to differentiate distributor circuit by signal, the major-minor machine is connected secure circuit, major-minor machine timing circuit, automatically show the reset circuit composition, it is used for town house phone and direct distance dialing program controlled telephone, and there is following problems in this machine: 1, outside line can not be dialed directly extension set.2, can not use the method for Ministry of Posts and Telecommunications regulation to charge, so the network access difficulty, limit its application, it can not distinguish long-distance, city and suburbs phone.

At above-mentioned situation, the purpose of this utility model is to provide the exchange of a kind of current collection words, charges along separate routes, helps mutually, reports to the police in one, also can carry out from the program control Home Telephone multifunctional multiplexing device that shakes survey electric weight, the water yield, temperature simultaneously.

Its technical scheme realizes as follows: comprise switching network and divide machine circuit, the busy tone circuit, power supply, ringing circuit, what receive and handle telephone exchange, shunt charging and alarm signal is the control core processor with the single-chip microcomputer, and be that core is connected with double-tone frequency/pulse telephone number receiving and state detection circuit with the processor controls, the multi-functional control interface circuit of charging circuit and control multipurpose apparatus is formed.Described charging circuit is by being the counting circuit of core with the counter, and charging reset circuit and fare card inefficacy display circuit are formed.Its counting circuit is by counter, and according to the different selected counter outputs of fare card charging number of times and on this end, be connected to resistance R ₁₀1, and through resistance R ₁₀₁Connect transistor BG ₁₀₂Base stage, transistor BG ₁₀₂Emitter and ground indirect resistance R ₁₀₂, be connected in series 300mA between its collector electrode and positive source, the 100mA fuse is formed, its output termination processor controls P ₇Mouthful, detect for CPU, be connected to resistance R simultaneously ₁₀₃Link to each other the input CP termination processor controls P of counting circuit with fare card inefficacy display circuit ₅Mouth is to receive the pulse that CPU sends.Said charging reset circuit is by transistor BG ₁₀₁And be connected to resistance R between base stage and power supply ₁₀₆, be serially connected with 300mA, 100mA fuse between emitter and ground and form the R of its output and counter as output _EEnd links to each other, and said fare card inefficacy display circuit is by transistor BG ₁₀₃And series resistor R between collector electrode and ground ₁₀₄, LED is formed, the P of output termination processor controls ₇Confession cpu detects usefulness; The multi-functional control interface circuit of described multiplexer is to isolate IC by light ₁₂And relay J ₄The two pairs of changeover contacts form relay J ₄Changeover contact J _4-1Normally closed contact J _4-1,2, J _4-1,1Meet photoisolator IC respectively ₁₂1 pin and the A of Port Multiplier end, its normal opened contact J _4-1,3Another relay termination J ₀Changeover contact J _0-1, 2 pin connecting resistance R of photoisolator ₄₇Connect power supply ground, its 5 pin connects power supply, output 4 pin connecting resistance R ₁₅Connect the I/O line that power supply ground connects processor controls simultaneously.Relay J ₄Another changeover contact J _4-2In normally closed contact two ends J _4-2-1, J _4-2,2Meet multipurpose apparatus B end, transistor BG respectively ₅Emitter and the footpath BG ₅Meet power supply 12V, its normal opened contact J _4-2,3Succeed electrical equipment J ₀Another changeover contact J _0-2, and through J _0-2Link to each other with ringing circuit and outside line.

Working procedure: the subscriber line circuit and a pair of subscriber's line that utilize switch, the single-chip microcomputer of main frame is isolated the back through photoelectricity and is connected with the branch machine circuit, when exhalation, main frame at first detect corresponding extension set charging circuit and fare card whether normal, as normally, this extension set can insert outside line, discerns first bit code that extension set is transferred to simultaneously, so that set up corresponding charging way, after the extension set dialing finishes, it is answer tone, or busy tone that main frame detects, if all be not, single-chip microcomputer begins the note expense.The Calling Party Hooks On, and the automatic powered-down of main frame enters wait state, if in communication process, fare card uses up, and main frame can keep end of conversation.Work as incoming call: promptly when the outside line incoming call, main frame is set up the talking state between caller and the main frame, receives the extension set tail number that caller is sent then, pulse/bifrequency here, i.e. and P/T compatibility, when receiving tail number, main frame send ring-back tone to caller, to called terminal ringing.The called off-hook that gets final product, conversation.Because of multipurpose apparatus is a pulse coder, when the fire-alarm that inserts multipurpose apparatus, when burglar alarm or button alarm have signal output, multipurpose apparatus sends the respective coding pulse signal to main frame, main frame is received the telephone number that sends prior regulation behind the coding automatically, and after determining called off-hook, main frame sends the pulse code signal that carrier wave is 2KHZ, 20 bits to called, called receive coding after, code conversion become Chinese character information and print.When certain extension set off-hook does not have dialing after 10 seconds, main frame thinks that just this extension set requires assistance, and main frame begins to send 0.35:0.35 to all the other two extension sets, and the ringing pulse of 20HZ is in order to distinguish normal 1:4 bell signal.Rescue help function to realize exchanging.

Versatile interface circuit working principle:

This interface can receive the pulse code signal of 10bi/s as the code signal input port of processor controls, and consistent with dial impulse, pulse code is produced by multipurpose apparatus.As photoisolator IC ₁₂Once end LED light-emitting diode bright or go out, the phototriode of secondary terminals is a Transistor-Transistor Logic level with the signal transition that this light and shade changes, this signal one tunnel is through D ₄Send power control circuit, the IC of processor controls is sent on another road ₁P ₂₇As serial input signals.There are three commonly used telephone numbers in this machine machine, i.e. 110/119/ first-aid station.The coding pulse code 2 that this machine multifunctional interface is received is represented fire, and 3,4,5 represent three dwelling house gangster feelings, and on behalf of three dwelling house first aids, 6,7,8 report to the police.Arrive to fire sensor, theft-proof sensor or button alarm level alarm signal when the multipurpose apparatus that inserts receives, dial into connection from trend 110/119 or first-aid centre.Use coding form to above address signaling afterwards, under any circumstance versatile interface is a limit priority.When external ring, when the circuit that collects the digits is received the regulation tail number, the relay J in the switching network circuit ₄Adhesive is connected on the V/F circuit working in the multipurpose apparatus on the versatile interface circuit, sends out the frequency pulse signal to caller, and this signal can be the temperature through the V/F conversion, information such as humidity.Versatile interface also can provide a RTA remote test access for calling residential electric power amount, the water yield etc. with telephone line from now on.

The charging circuit operation principle:

This machine adopts unique one-off charge card charging mode, One Time Programmable fuse fare card, disposable insertion reset circuit.When the fare card programmable fuse that inserts and counter output signal at once, the high level that counter is exported is through resistance R ₁₀₁Make transistor BG ₁₀₁Conducting, conducting electric current are 4A, and the fuse of 100mA is blown, and force transistor BG ₁₀₁Current collection is low level very, and this level one tunnel detects for processor controls, and one the tunnel send fuse break-make testing circuit.BG ₁₀₂The low level of output is through resistance R ₁₀₃Make transistor BG ₁₀₃Conducting, LED is luminous, notifies user's fare card to use up, relay J when breathe out next time ₄The extension set of being failure to actuate can only be heard busy tone.By transistor BG ₁₀₁, resistance R ₁₀₆, R ₁₀₇, f ₄Be 100mA, f ₃For the charging reset circuit of 300mA fuse formation, when neocaine inserts, transistor BG ₁₀₁Saturation conduction is at f ₄For before the 100mA fuse is not blown, transistor BG ₁₀₁Emission high level very, this high level makes counter IC ₁₉Reset terminal R _TsetHold clear 0.Fare card is inserted on the printed panel socket of 32 cores, and each output of counter and 100mA fuse can be done various combinations, and the 300mA fuse is to forge for preventing.

The utility model is compared with existing equipment has tangible advantage: but 1, every part machine direct outward dialing need not to dial 0, outside line also can directly be dialled extension set, dials tail number after also can hearing the secondary dial tone that main frame sends, and only needs the items of dialling more.2, P/T compatibility.3, adopted the shunt charge system of brand-new mode.4, owing to providing versatile interface for multipurpose apparatus, as utilize the phone tail number, just can access relevant water temperature, the information about power of premises, or it is alert to send the condition of a fire, gangster's information, can realize between each extension set helping mutually, this is current skyscraper urgent problem, and for postal and telecommunication entities save fund, can reduce telephone charges and use.Improve the Home Telephone line efficiency.

Describe the utility model in detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model system block diagram.

Fig. 2 is the utility model host circuit schematic diagram.

Fig. 3 is the utility model charging circuit schematic diagram.

Fig. 4 is power supply of the present utility model and control circuit schematic diagram.

Among the figure: circuit and state detection circuit, 4 charging circuits, 41 fare cards, 5 switching networks and divide machine circuit, 6 dried anti-jamming circuits, 7 busy tones and Exgt Bat extension battery circuit, 8 ringing circuits, extension set 9,10 stabilized voltage power supplys, 11 floating charge storage batterys, 12 inverters, 13 outside lines but 1 processor controls, 2 multi-functional control interface circuit, 21 multipurpose apparatus, 3P/T collect the digits.

Fig. 1 to Fig. 4 has provided a kind of most preferred embodiment of the present utility model.It is by extension set 9, power supply and control circuit 10,6,11,12 thereof, busy tone circuit and Exgt Bat extension battery circuit 7, receive and handle telephone exchange, along separate routes charge and alarm signal be control core processor 1 with the single-chip microcomputer, and be the double-tone that connects of core pulse telephone number receiving and state detection circuit 3, charging circuit 4, ringing circuit 8, switching network and divide versatile interface control circuit 2 compositions of machine circuit 5, multipurpose apparatus 2.1 frequently with processor controls 1.Described processor controls 1 is by single-chip microcomputer IC ₁, memory EPROM IC ₂, address latch IC ₃, expanded circuit IC ₄Form, the single-chip microcomputer of this machine is selected 8035 single-chip microcomputers of 48 series for use, each pin of single-chip microcomputer can be with reference to the operation instruction and the typical circuit of common single-chip microcomputer and accessory circuit thereof with being connected of peripheral circuit, memory EPROM can select 2732 for use, address latch selects 74373 for use, and the interface expanded circuit selects 8243 for use.The switching network of this machine is by the relay J of controlling three extension sets respectively ₁～J ₃And collector electrode respectively with relay J ₁～J ₃Link to each other, base stage respectively with the P of single-chip microcomputer 8035 ₁₁～P ₁₂Link to each other, its emitter mutually and meet the BG of 5V after connecting ₇～BG ₁₃Form.Three extension set control circuits are isolated IC by photoelectricity respectively ₉To IC ₁₁And the relay J that links to each other with three extension sets ₁～J ₃Changeover contact be connected to form its photoisolator IC ₉～IC ₁₁Output respectively with the P of single-chip microcomputer 8035 ₂₄～P ₂₆Link to each other, other line is seen multipurpose apparatus versatile interface control circuit, and different is, and corresponding contact connects is A, the B end of three extension telephones rather than multipurpose apparatus.The P of single-chip microcomputer ₁₇End connects ringing circuit IC ₆4 pin.The versatile interface control circuit 2 of described multipurpose apparatus is by optical isolator IC ₁₂And relay J ₄Two couples of changeover contact J _4-1And J _4-2Form its relay J ₄A changeover contact in normally closed contact two ends J _4-1,2, J _4-1,1Meet photoisolator IC respectively ₁₂1 pin and multipurpose apparatus A end, its normal opened contact one relay termination J ₀A changeover contact J _0-1, and link to each other another changeover contact J with ringing circuit 8 and outside line 13 through this contact _4-2In normally closed contact two ends J _4-2,1, J _4-2,2Meet multipurpose apparatus B end and transistor BG respectively ₅Emitter and join its normal opened contact one relay termination J through this triode and power supply ₀Another changeover contact J _0-2And this contact of footpath joins photoisolator IC with ringing circuit 8 and outside line 13 ₁₂2 pin connecting resistance R ₄₇Then the footpath resistance R ₄₇Ground connection, its 5 pin connects positive source, 4 pin connecting resistance R ₁₅Ground connection then meets the P in the I/O mouth line of single-chip microcomputer 8035 simultaneously ₂₇Fig. 3 has provided charging circuit 4 circuit theory diagrams.The charging circuit composition and the line of extension set No. three are all identical, and wherein a route is with counter IC ₁₉For counting circuit, charging reset circuit, the fare card inefficacy display circuit of core are formed.Described counting circuit is by counter IC ₁₉, and according to the different selected counter outputs of fare card charging number of times and on this end connecting resistance R ₁₀₁, through resistance R ₁₀₁Connect transistor BG ₁₀₂Base stage, the emitter of transistor and power supply ground indirect resistance R ₁₀₂, be connected in series 300mA between collector electrode and power supply, the 100mA fuse is formed.The expanded circuit IC of the CP termination processor controls 1 of counting circuit ₄P ₅Mouthful, the expanded circuit IC of its output termination processor controls 1 ₄P ₇Mouthful, meet the transistor BG of fare card inefficacy display circuit simultaneously ₁₀₃Base stage.Described charging reset circuit is by transistor BG ₁₀₁, its base stage and power supply indirect resistance R ₁₀₆, reach counter IC between emitter and power supply ground ₁₉Reset terminal serial connection 300mA, 100mA fuse form.Described fare card inefficacy display circuit is by transistor BG ₁₀₃And be serially connected with resistance R between collector electrode and power supply ground ₁₀₄, LED is formed.The CP end of the charging circuit of three extension sets meets P respectively ₅Mouth P ₅₁, P ₅₂, P ₅₃Localpower is made up of 13.5V stabilized voltage power supply 10, floating charge storage battery 11, inverter 12 and anti-jamming circuit 6 and start-up circuit, inverter 12 has two groups of outputs, one group is the 5V/500mA main circuit power, one group be 70V/30mA be used for producing ringing-current and as extension set pluck/on-hook detect to use.For increasing reliability, charging circuit has a 6V0.5Ah rechargeable battery.This machine is not influenced by mains failure.The electric power thus supplied of power supply is as follows:

When no external ring extension set 13 9 hook states and multi-functional mouthful of 2 pulse-free signals input, inverter 12 is not worked at ordinary times.At this moment stabilized voltage power supply 10 only is storage battery 11 floating charges and is extension set 9 circuit, ring detecting circuit power supply, and the complete machine electric current is less than 5mA.

If have external ring 13, certain extension set 9 off-hook or multi-functional mouth 2 that the pulse signal input is arranged, the photoelectricity of this signal in minute machine circuit 5 is isolated IC ₉～IC ₁₂Back 4.3V signal of output makes pulse signal generator IC in the inverter 12 ₁₆Set, the square-wave signal that produces a 15KHZ removes to drive inverter power switch I C ₁₅, inverter work, main circuit powers on.Single-chip microcomputer IC ₁Initialization, at this moment single-chip microcomputer IC ₁P ₁₆=1 makes the inverter self-insurance; P ₁₇=0, ringing circuit 8 no bell signal outputs; P ₁₁=0 expanded circuit IC ₄P ₅₀=0 makes circuit 3 relay J that collect the digits ₅Adhesive prepares to collect the digits, afterwards single-chip microcomputer IC ₁Scanning P ₂₄～P ₂₇, judgement is that external ring or completely restricted extension 9 off-hooks or multi-functional mouthful 2 have the pulse input.If P ₂₄～P ₂₇=0, then be external ring, single-chip microcomputer IC at this moment ₁Make expanded circuit P ₅₀=1, make outside line 13A, B voltage between lines reduce to 8-12V, enter talking state, the circuit 3 that collects the digits begins to collect the digits.(circuit that collects the digits here is by relay J ₅, reversal D ₁, electronic gate BG ₃, impedance conversion, shaping amplify BG ₁₄, the double-tone IC that decodes frequently ₅Form Deng part), receive last item sign indicating number that caller is sent, if the pulse signal that caller is sent then signal is amplified to the P of expanded circuit through shaping ₁₆Mouthful, if caller sends is double-audio signal, then signal through impedance conversion to the circuit 3IC that collects the digits ₅7 pin, by IC ₅Be transformed into binary-coded decimal after the decoding and deliver to the P of expanded circuit ₄Mouthful.When receiving effectively frequently, pulse or double-tone (receive effective IC when double-audio signal here ₅VD pin output high level through anti-phase to single-chip microcomputer IC ₁The INT mouth) single-chip microcomputer IC ₁Make corresponding relay J in the switching network 5 ₁～J ₄Adhesive.Single-chip microcomputer IC afterwards ₁Make P ₅₀The output ring-back tone makes P ₁₇Output 1:4 square wave to ringing circuit 8 makes bell signal deliver to called extension set 9, detects whether off-hook of called extension set 9 by state detection circuit 3 simultaneously.If the P of expanded circuit ₆₀=0 identification extension set 9 off-hook, at this moment single-chip microcomputer IC ₁Make P ₅₀And P ₁₇Stop paying out ring-back and bell signal, make P ₁₀=0, make the relay J of switching network 5 ₀Adhesive, called extension set 9 is connected with the caller circuit.Make P ₁₁=1, P ₅₀=0 circuit reset that collects the digits, whole exchange process finishes.

At this moment single-chip microcomputer IC ₁Detect whether on-hook of called extension set 9 by state detection circuit 3, if the P of expanded circuit ₆₀=1, then assert called extension set 9 on-hooks, single-chip microcomputer IC ₁Make P ₁₆=0 quits work inverter 12, and main frame enters wait state.

If divide machine circuit 5 output P ₂₄～P ₂₇≠ 0, then be that certain extension set 9 off-hook or multi-functional mouth 2 have the pulse input.Single-chip microcomputer IC ₁P in scanning charging circuit 4 and the expanded circuit interface ₇₀, P ₇₁, P ₇₂, check whether this extension set fare card 4.1 uses up or do not insert socket.If fare card 4.1 is to use up or not insert socket, charging circuit 4 interface P ₇Mouth=0, at this moment single-chip microcomputer IC ₁To P ₁₆Send 0, make inverter 12 shutdown.At this moment corresponding extension set 9 is just heard busy tone, and it is invalid to dial.If charging circuit corresponding interface P ₇Mouth=1 single-chip microcomputer IC ₁Then make switching network 5 corresponding relay J ₁～J ₄Adhesive makes P ₅₀=0 does not influence extension set 9 dialing when the circuit that collects the digits is collected the digits.Make J in the switching network ₀Adhesive makes corresponding extension set give connection to external call 13.Off-hook extension set 9 makes and can dial when hearing the dialing tone of outside line 13.Receive the first item sign indicating number of extension set 9 dial-outs when the circuit 3 that collects the digits after, send single-chip microcomputer IC ₁Carrying out following processing, is 0 if extension set 9 is transferred to, single-chip microcomputer IC ₁Check this extension set and have or not the long-distance call function, this machine only is that an extension set is set up the long-distance call function.As there is not single-chip microcomputer IC ₁Make P ₁₆=0 closes inverter.If the long-distance call function is arranged then make charging circuit 4 stop to charge, this captain talks about charging and is undertaken by Local Exchange.When extension set 9 dialing are suburbs, single-chip microcomputer IC ₁Enter 24 seconds and add the wait state of a charging way, otherwise enter the wait state that added a charging way in 180 seconds.Delay time after 5 seconds single-chip microcomputer IC ₁Detect T ₀Mouth has or not ring-back tone or busy tone.If T ₀Mouth low level in 5 seconds is then confirmed called off-hook less than 10ms, single-chip microcomputer IC ₁Make charging circuit 4 begin to charge, make J ₅The relay that collects the digits discharges, single-chip microcomputer IC ₁Beginning detected state testing circuit 3 detects whether on-hook of extension set 9, if the P of expanded circuit ₆₀=1 is on-hook, and processor controls 1 makes P ₁₆=0 closes inverter 12.

Claims (3)

1, a kind of program control Home Telephone multifunctional multiplexing device, comprise switching network and divide machine circuit, busy tone circuit, ringing circuit, power supply, it is characterized in that: receive and handle telephone exchange, charge along separate routes and alarm signal be the control core processor with the single-chip microcomputer, and be that core is connected with that tonepulse collects the digits and state detection circuit, charging circuit and be connected to the multi-functional control interface circuit of multipurpose apparatus with the processor controls.

2, program control Home Telephone multifunctional multiplexing device according to claim 1, it is characterized in that charging circuit is by being the counting circuit of core with the counter, charging reset circuit and fare card inefficacy display circuit are formed, described counting circuit is by counter, and according to the different selected counter outputs of fare card charging number of times and on this end, be connected to resistance R ₁₀₁, and through resistance R ₁₀₁Connect transistor BG ₁₀₂Base stage, its emitter and power supply ground indirect resistance R ₁₀₂, being connected in series 300mA between collector electrode and power supply, the 100mA fuse is formed, the input of counting circuit is the clock end P of CP termination processor controls ₅Mouthful, its output termination processor controls P ₇Mouthful, while connecting resistance R ₁₀₃Meet the transistor BG of fare card inefficacy display circuit again ₁₀₃Base stage; Described charging reset circuit is by transistor BG ₁₀₁, be connected to resistance R between its base stage and power supply ₁₀₆, between emitter and power supply ground, counter reset R _EEnd is serially connected with the 300mA100mA fuse to be formed, and described fare card inefficacy display circuit is by transistor BG ₁₀₃And be serially connected with resistance R between collector electrode and power supply ground ₁₀₄, LED is formed.

3, program control Home Telephone multifunctional multiplexing device according to claim 1, the multi-functional control interface circuit that it is characterized in that multipurpose apparatus is by photoisolator IC ₁₂And relay J ₄Two couples of changeover contact J _4-1, J _4-2Form its relay J ₄Changeover contact J _4-1Normally closed contact two ends J _4-1,2And J _4-1,1Meet photoisolator IC respectively ₁₂1 pin and the A of multipurpose apparatus end, its normal opened contact J _4-1,3Succeed electrical equipment J ₀Changeover contact J _0-1, and through J _0-1Connect ringing circuit and outside line, relay J ₄Changeover contact J _4-2Normally closed contact two ends J _4-2,1, J _4-2,2Meet multipurpose apparatus B end and transistor BG respectively ₅Emitter, and through BG ₅Join its normal opened contact J with power supply _4-2,3Succeed electrical equipment J ₀Changeover contact J _0-2, and through J _0-2Connect ringing circuit and outside line, photoisolator IC ₁₂2 pin and power supply ground indirect resistance R ₄₇, its 5 pin connects power supply, photoisolator IC ₁₂Output 4 pin and ground indirect resistance R ₁₅, the I/O mouth line of while access control process.

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