CN2519556Y - Automatic dialing and alarming device while telephone external circuit has been wholly destroyed - Google Patents

Abstract

The utility model relates to a device which can externally automatically dial alarm when the telephone exterior line is totally damaged, belonging to an electronic alarming device, comprising an external shell, a sending and receiving antenna, an indicator lamp, a switch, a binding post, sockets, an alarming button, a speaker, and a circuit board, the relationship being: the sending and receiving antenna threads the upper surface of the external shell, and the indicator lamp, the power switch, the alarming button, the speaker, and the binding post are arranged on a panel and are connected respectively with the corresponding points of the circuit board; the sockets are arranged on the lateral side of the external shell and are connected respectively with the telephone and the telephone exterior line; the circuit consists of a host and slave machine automatic switching circuit, a line failure monitoring circuit, a second and fourth line switching circuit, a pilot filtering circuit, a band coding wireless sending circuit, a band decoding wireless receiving circuit, a pilot monitoring circuit, a simulating answering circuit, an automatic dialing circuit, a replying monitoring circuit, an engaged tone monitoring circuit, a simulating hanging off circuit, a voice alarm recording and playing circuit, a pilot production circuit, a rectifying and voltage stabilizing circuit, a flow charging direct current backup power circuit, a police control circuit, an alarm triggering circuit, an alarm time control circuit, a sound alarm circuit, and a light indicator circuit which are connected through the signal lines and power cords. The utility model can avoid misinformation caused by disturbance, with a strong generality, and convenient maintenance and use, and can automatically dial alarm when the telephone exterior line are totally damaged, and the production cost is low, and the performance is reliable.

Description

Outside line is destroyed still the externally device of automatic dialing alarm entirely

(1) technical field:

The utility model is that a kind of outside line is destroyed still the externally device of automatic dialing alarm entirely, belongs to electronic alarm technique equipment.

(2) background technology:

At present, the common all kinds of automatic dialing alarm devices that utilize telephone line to dial automatically, generally all exist the line construction complexity, and but crucial design is quite simple, promptly ignore and ignored complicated many-sided shortcoming and defect such as reality, following several respects are specifically arranged: (1) does not have once there being triggering signal (the interference triggering signal that comprises warning triggering signal and non-warning) promptly can make device change automatic simulation off hook state over to differentiate and remove the time consideration of disturbing, and its result has increased the possibility of wrong report; (2) device is in the simulation off-hook, at once triggers automatic dial-up circuit again and neither one allows the simulation circuit for answering enter stable state required 1～2 second minimum transit time earlier, and its result causes the success rate of dialing automatically to reduce; (3) have only the function of automatic dialing, and the function that does not have language to inform.Its result receives a crime report the machine master or 110 who is put through can not to have to react fast and cause to alert scene and character and is difficult to take some countermeasures; (4) for the automatic dialing alarm device of existing electronics recording playback sound, its Best Times of playing the alarm voice information of recording is not automatically often considered again fully.This has caused following several unreasonable schemes: 1. be taken as called logical when ring-back tone appears in circuit, promptly trigger the institute's record information of playing at once, at this moment play opportunity and prematurity in fact, reason is exactly that ring-back tone just illustrates the other side's phone free time of dialling, but the other side not necessarily has the people, though perhaps the other side has the people but often not necessarily just answers the call at once, so really crying logical should be to have picked up phone the other side in fact, and begin formally to reply to be only real connection, just begin to play the warning language message of recording this moment and be only best reproduction time; 2. begin broadcasting information when bucking voltage that being sent here by Local Exchange appears in former circuit, this is right in theory, but in fact just unworkable.Because regular phone office mostly only just provides this bucking voltage to having handled the telephone subscriber who makes public telephone when the other side carries machine after dialing at present, make automatic call meters usefulness, and most telephone subscriber there is not this bucking voltage to use; (5) some automatic dialing alarm device is after the triggering of being reported to the police, do not broadcast back automatic stop function with regard to be in the dialing alarm state always, thisly (for example dial 110) continuously phone is dialled in, not only seriously dialling phone (for example 110) is caused very serious harassing and wrecking, and cause this called line can be in meaningless engaged condition and influence dialling in of other user; (6) auto-dial unit of considerable part is arranged owing to only consider to go to utilize telephone line and, thereby after the dialing mechanism access, can cause the phone in use can pure direct currentization and influenced the ringer function of telephone set not from ensureing whether telephone line can cause aspect such as harmful effect to consider to the conversation of former circuit after inserting this automatic dialing alarm device from own antitheft dialing aspect; In addition, introduce electric energy from telephone line blindly and make the power supply of auto-dial unit, thereby cause between two outside lines between the line under the normality electric current to heighten artificially and cause the undesired of Local Exchange's stored-program control exchange work; (7) when its outside line is cut off, short circuit or the whole automatic dialing alarm device in back that has a power failure are just complete in paralyzed state and lose the function of outside automatic dialing alarm; (8) adopt the more of single-chip microcomputer or other equipment special, need the specialty programming or buy equipment special, use and keep in repair equal inconvenience.

(3) summary of the invention:

The purpose of this utility model is exactly to exist circuit long in order to overcome and to solve the existing warning device that utilizes telephone line to dial automatically, introduce to disturb and cause wrong report, versatility is poor, dial long-time phone and cause harassing and wrecking, normal use to telephone office or phone produces harmful effect, outside line destroys back forfeiture warning function, the equipment that uses is not general to cause various shortcomings and the problem of using inconvenience etc. of safeguarding, and study, design a kind of perfect anti-interference function that has, can not cause and report by mistake and fail to report, versatility is good, can adopt general equipment to install, and that maintenance is used is very convenient, and to the normal use of telephone office and original call do not produce any dysgenic outside line destroyed entirely still can automatic dialing alarm device.

The utility model is realized by following technical proposals: the contour structures schematic diagram that outside line is destroyed still device that can automatic dialing alarm entirely as shown in Figure 1, its circuit block diagram as shown in Figure 2, the circuit theory diagrams of one of its execution mode are as shown in Figure 3.It by shell 1, wireless receiving and dispatching antenna 2, power supply and alarm lamp 3, mains switch 4, be connected probe and connect and compose with binding post 5, the socket 6 that connects telephone set, the common installation of socket 7, emergency alarm button 8, audible alarm loudspeaker 9 and circuit board that connects outside line, its mutual alignment and annexation are: hole stretched out above wireless receiving and dispatching antenna 2 passed casing 1, relevant corresponding points are electrically connected mutually on its lower end and the circuit board, power supply and report to the police and be installed on machine shell panel middle and upper part branch and be connected with respective point on the circuit board respectively with indicator light 3; Current switch 4 be installed on the machine shell panel upper right quarter and with circuit board on power end be electrically connected mutually; The connection probe is installed on the machine shell panel bottom with binding post 5 and is electrically connected mutually with corresponding probe respectively; The socket 6 of connection telephone set is installed on casing 1 left surface and is connected with telephone set; The socket 7 of connection outside line is installed on casing 1 left surface and is connected with outside line; Emergency alarm button 8 is installed on the machine shell panel upper left quarter and is electrically connected mutually with the self-contained circuit board respective point; Audible alarm loudspeaker 9 are installed on machine shell panel upper left quarter the inside and are connected with the self-contained circuit board respective point; Its circuit is by major-minor machine automatic switching circuit, phone failure monitoring circuit, two, four line change-over circuits, the pilot tone filtering circuit, band coding radio transmitter, band decoding wireless reception circuit, the pilot tone supervisory circuit, the simulation circuit for answering, automatic dial-up circuit, the other side replys supervisory circuit, the busy tone supervisory circuit, simulation on-hook circuit, the language alarm playback circuitry, pilot tone produces circuit, regulator rectifier circuit, dc standby power circuit with beautiful current charge, alert control power circuit, alarm trigger circuit, the time of fire alarming control circuit, audible alarm circuit, light indicating circuit is electrically connected formation jointly mutually, and its interconnected relationship is: telephone wire failure monitoring circuit is respectively by the automatic switching signal line, telephone wire respectively with major-minor machine automatic switching circuit, two, four line conversion lines, telephone set, outside line is electrically connected mutually; Major-minor machine automatic switching circuit is electrically connected with band decoding wireless receiving circuit, band coding radio transmitter respectively mutually by decoding received signal line, the coding line that transmits respectively; The pilot tone filtering circuit is electrically connected with band decoding wireless receiving circuit, two or four line change-over circuits respectively mutually by pilot signal line, pilot tone filtered signal line respectively; Band coding radio transmitter respectively by two or four line switching signal lines, automatic dial-up signal line, pilot tone signal monitoring cable, reply signal monitoring cable, busy tone signal monitoring cable, language alarm recording playback holding wire, pilot tone and produce holding wire and reply supervisory circuit, busy tone supervisory circuit, language alarm playback circuitry, pilot tone with two or four change-over circuits, automatic dial-up circuit, pilot tone supervisory circuit, the other side respectively and produce circuit and be electrically connected mutually; The pilot tone supervisory circuit is electrically connected with band decoding wireless receiving circuit, simulation summary machine circuit respectively mutually by band decoding received signal line, simulation off hook signal line respectively; The simulation circuit for answering is replied supervisory circuit, language alarm playback circuitry, pilot tone with automatic dial-up circuit, the other side respectively by simulation off hook signal line respectively and is produced circuit and be electrically connected mutually; Dc standby power circuit with beautiful current charge is electrically connected with regulator rectifier circuit, alert control power circuit mutually by power line respectively; Regulator rectifier circuit installs each road dc power supply terminal with this respectively by direct current supply line and is electrically connected mutually, and by the detectable signal line, the time of fire alarming control signal wire is electrically connected with all kinds of probes, time of fire alarming control circuit respectively alarm trigger circuit mutually respectively; The time of fire alarming control circuit is electrically connected with alert control power circuit, audible alarm circuit, light indicating circuit respectively mutually by the time of fire alarming control signal wire respectively.Wherein: major-minor machine automatic switching circuit is connected and composed jointly by relay K (J1), C1, D1, transistor Q1, R1, R2; Telephone wire failure monitoring circuit is by connecing outside line and the plug N1～N4 that answers the call, integration member U1, R1～R3, transistor Q1, relay J 1, D1 and news Chinese percussion instrument MY connect and compose jointly; Two or four change-over circuits are connected and composed jointly by B1, B2, W2; The pilot tone filtering circuit is connected and composed jointly by R8, R9, C3; Band decoding wireless receiving module JJa, JJb, antenna YJ connect and compose jointly; Band coding radio transmitter is connected and composed jointly by band coding wireless transmitter module Fa, Fb and unlimited YF; The pilot tone supervisory circuit is connected and composed jointly by integration member U2, C4～C8, R10, R11, transistor Q3, R14; The simulation circuit for answering is connected and composed jointly by R12, R13, C8, transistor Q4, Q5, Q1, D2, relay J 2, K (J2); Automatic dial-up circuit is connected and composed jointly by R17, R18, C11, C9, integration member U4-1, U6, transistor Q8, D3, relay J 3, K (J3), R40～R42, C31, C32, crystal oscillator X.The other side replys supervisory circuit and is connected and composed jointly by R25～R36, C24～C26, D6～D8, Q9～Q12, integration member U4-5, U4-6; The busy tone supervisory circuit is connected and composed jointly by C12～C17, U3, R23, R24, integration member U4-3, U4-4, D5, DE, R21; Simulation on-hook circuit is connected and composed jointly by D4, R20, C18, integration member U4-2, R19, transistor Q6, Q7, D2, relay J 2, K (J2); The language alarm playback circuitry is connected and composed jointly by integration member U5, R36～R39, Q12, button switch K R, pick-up MIC, Q13, C21～C23; Pilot tone produces circuit and is connected and composed jointly by D17, D18, C42～C44, integration member U7-6, R52～R54, Q19; Regulator rectifier circuit is connected and composed jointly by B3, rectification module GD, C27～C29, U8, D10; Dc standby power circuit with beautiful current charge is connected and composed jointly by R44, D11, reserve battery EV; Alert control power circuit is connected and composed jointly by transistor Q15, Q16, R48, C41, C34, C33; Alarm trigger circuit is connected and composed jointly by binding post A, B, C, D, E, F and emergency alarm button AN, D12～D14, R55, C35～C37, R45～R47, L; The time of fire alarming control circuit is connected and composed jointly by R46, C37, integration member U7-3, U7-4, D15, W3, C38; Audible alarm circuit is connected and composed jointly by D16, R49, C39, C40, integration member U7-5, transistor Q17, Q18, R51, loud speaker M; Light indicating circuit is connected and composed jointly by R50, R56, charactron LED1, LED2.

The utility model is compared with prior art, equipment has following advantage and beneficial effect: (1) is provided with the perfect jamproof triggering warning device of being with, and can avoid or reduce because of inserting the wrong report that the long various interference of introducing of line cause with probe; (2) versatility of this device is better, both can be used various alarm probe such as common open in usual, voltage-type and use, and also can independently use.Adopt thin wire to insert normally closed type (break alarm) votage control switch, insert mode such as binding post open in usual and make antitheft complete machine and use.In addition, this device also is provided with the emergency alarm button, can send the emergency alarm help signal at any time; (3) be provided with the warning automatic stop arrangement, the harassing and wrecking that can avoid long-time Outgoing Call automatically to cause; (4) this device can not produce any harmful effect to the normal use of telephone office or original call; (5) all adopt cheap versatility equipment, not only reduce cost, and maintenance easily; (6) operation is very simple and convenient, meets the popular principle that anyone can use; (7) existing function of being carried out automatic dialing alarm after being triggered by alarm signal also has after dialing automatically, when called the other side carry machine and reply the back promptly automatically broadcast comprise the electronic recording information of contents such as informing the other side's alert, place; (8) no matter whether the outside line of former phone is cut off or by short circuit, when alert takes place or presses emergency alarm, all can finish externally warning function automatically; (9) this device has advantages such as circuit is simple, with low cost, function is more complete, maintenance is easy to use, reliable operation.

(4) description of drawings:

Below Figure of description is further specified as follows: Fig. 1 is the contour structures schematic diagram that a kind of outside line is destroyed the telephone automatic dialing warning device that still can externally dial entirely; Fig. 2 is its circuit block diagram, Fig. 3 is the circuit theory diagrams of one of its execution mode, among the figure: the 1st, shell, the 2nd, wireless receiving and dispatching antenna, the 3rd, power supply and warning indicator light, the 4th, mains switch, the 5th, connect probe and use binding post, the 6th, telephone set gang socket, the 7th, the socket of connection outside line, the 8th, emergency alarm button, the 9th, alarming horn; N1, N2 connect telecommunication bureau's outside line plug, N3, the N4 machine transplanting of rice head of answering the call, and AN is the emergency alarm button, and binding post A, B meet voltage output type probe (A just, B negative) C, D and connect the open type alarm probe, and E, F connect the closed type alarm probe.

(5) embodiment:

The inventor thinks that realization optimal way of the present utility model can be as follows: (1) is by shown in Figure 1, the aluminium alloy material adopts machine-tooled method processing shell and panel or selects for use engineering plastics to adopt injection moulding process to make shell and panel, choose general wireless receiving and dispatching antenna 2, power supply and alarm lamp 3, mains switch 4, binding post 5, telephone set gang socket 6, outside line gang socket 7, alarm button 8, alarming horn 9 etc. then, by the described position of top specification annexation connection is installed again; (2) by protracting circuit plate shown in Figure 3, screen components and parts then connection is installed, wherein: U1 can select the two optocoupler integrated packages of low current type such as TIL117 for use; U2, U3 can select the LM567 type for use; U4, U7 can select the CD40106 type of the close special input-output characteristic of band application for use; U5 can select UM5506 for use; U6 can select HM9102 for use; U8 can select LM7815 for use; MY can select the news Chinese percussion instrument of 12V for use; B1, B2 can select the transistor input transformer for use; B3 can select the power transformer of 220 volts/12 volts of 2-5W for use; J1, J2, J3 can select the miniature relay of 12V band normally-open normally-close formula switch by point for use; Q1 selects Darlington transistor or makes up with one 9014 and one 8050; The optional 2SC9014 of Q2～Q6; The optional 2SC8050 of Q7, Q8; The optional 2SC9014 of Q9～Q14; The optional 2SC8050 of Q15; The optional 2SC9014 of Q16; It is the JJ3A type band coding wireless receiving module of 48MHz that JJa can select receive frequency for use; JJb can be the JJ3B type band coding wireless receiving module of 74MHz with receive frequency; Fa available transmission frequency is the FF3A type band coding wireless transmitter module of 74MHz; Fb available transmission frequency is the FF3b type band coding wireless transmitter module of 48MHz.Then by shown in Fig. 2～3 and the described annexation of top specification connection is installed, just can make self-contained circuit board preferably and implement the utility model.

The circuit square frame and the circuit working principle of present embodiment are as follows: this warning device is a band mutual aid joint defence device, this device removes the function part of voice messagings such as having automatic dialing and automatic broadcast address, also has the standby functions of similar radio telephone (being commonly called as composite aircraft) simultaneously.At telephone line just often, the user is sent out by the original call line at the automatic dialing of reporting to the police after triggering, and at this moment standby composite aircraft is to be in base (also being main frame or the machine tool) accepting state of awaiting orders.In case and certain user's telephone line is cut off after the destruction, this machine promptly transfers mobile phone (also being secondary machine or handset) state automatically to.At this moment, though it cut off with the telephone wire of Local Exchange.But it converts the mobile phone form in the radio telephone automatically to, still can automatically own telephone number and language alarm information of being stored be launched with the form of radio wave, and if other same automatic dialing alarm devices of same encoding and decoding state also are housed in its electric wave coverage area, the message pick-up that promptly can be automatically mobile phone be sent as base is also realized dialing automatically and is play audio alert information by the auxiliary the other side's mobile phone of its telephone line.Thereby realize that wired (trigger report to the police) change the process that cooperates with each other that wireless (emission information) changes again changes wired (as reporting to the police to 110) again after wired (connecting Local Exchange through the base circuit) or change wireless (as reporting to the police to beeper) again.Thereby realize that a side reports to the police, pay close attention in many ways that assist each other, destruction is not afraid of in common networking, guarantees effective complete autoalarm.

In this device, have nothing in common with each other with the tranmitting frequency and the receive frequency of machine.But the receive frequency of main frame and the tranmitting frequency of secondary machine are identical.And the receive frequency of secondary machine is also identical with the tranmitting frequency of main frame.And each automatic dialer all has the wireless receiving and dispatching part of main frame, and the wireless receiving and dispatching part of secondary machine is also arranged.But under its telephone line normal condition, then can only play main frame, its with machine with secondary machine transmission circuit then be deactivated (automatically have a power failure).And when its telephone line destroyed (for example cut off or by short circuit), then transfer secondary machine state (secondary machine transmission circuit adds power supply automatically) automatically to and then be deactivated (having a power failure automatically) with the main frame transmission circuit of machine.Finish finishing jointly of this auto-conversion function by major-minor machine automatic switching circuit and words line failure monitoring circuit.

In circuit theory diagrams, a forward and one have only been sealed between phone and the outside line oppositely mutually and the optocoupler diode that connects.When inserting outside line like this, just need not to distinguish positive-negative polarity.But also can play the effect that electricity is isolated, make the direct current droop loss in the circuit reduce to minimum.And for alternating current path, because at optocoupler two utmost point two ends that sealed in and connect capacitor C 2, so the path to AC signal does not have a bit influence fully, and at the output of optocoupler and connect capacitor C 1, then can avoid just in case the misoperation that outside line causes because of instantaneous loose contact.And with the telephone set wiring mutually and the resistance R 3 that connects, its effect is when phone not during off-hook, still can provide a DC channel for the optocoupler diode.That is to say: no matter phone off-hook whether, also no matter arbitrarily the outside line polarity that inserts how, this extremely simple outline fault supervisory circuit can operate well.And,, also can not cause the mis-hanging-on action of Local Exchange so neither can influence the normal use of original call because the resistance value ratio of R3 is bigger; The operation principle of outside line supervisory circuit and major-minor machine automatic switching circuit is such: when the outside line fault-free, outside line voltage is connected to optocoupler diode two ends (no matter line polarity how through resistance R 3 or telephone set (during off-hook), must there be one to be the forward connection, one is oppositely to connect) wherein its corresponding photodiode of optocoupler diode of connecting of forward thereby conducting and with R2 ground connection, Darlington triode Q1 is ended, thereby relay J 1 can adhesive, controlled switch K (J1) connects the normally closed type contact, make power supply V+ lead to the Va end, thereby this machine is in the base state.And cut off or during short circuit, its voltage between lines also disappears thereupon when outside line, thereby the optocoupler diode has not had electric current to flow through yet.Its corresponding phototriode is cut-off state.At this moment, power supply V+ adds to Darlington triode Q1 through R2, R1, causes the J1 adhesive.Controlled switch K (J1) is transformed into Vb with power supply by Va, thereby makes this machine be transformed into secondary machine (mobile phone) state automatically.In addition, because this moment, direct current warning signal loudspeaker are because of getting the electric audible alarm state that is in, and this reminds the phone owner on the one hand: " outside line is destroyed, must hasten to repair." destroy telephone line to desiring elder generation on the other hand, and then want the effect that threatens into an alarm sound of ruffian of room crime, make its room crime of hesitating to take a risk.But when entering by the room of antitheft probe monitors, can cause corresponding probe action if the ruffian is reckless.(for example 2 disconnections of the E of closed type, F, 2 closures of the C.D of open type, or the A of voltage-type, B two ends input voltage etc.) this voltage is through the anti-jamming circuit of R45, C36, L, R46 after narrow disturbing pulse clutter is differentiated filtering to point, be added to the input of U7-3 through capacitor C 37, make its output a negative pulse occur.This negative pulse has been equivalent to bleed off that capacitor C 38 filled when flat.Thereby U7-4 output high level, this high level makes the Q15, the Q16 that are equivalent to mains switch enter the saturation conduction state on the one hand.Thereby output dc voltage is for dialing output circuit, voice messaging alarm control circuit, simulation circuit for answering, the other side reply supervisory circuit, simulation on-hook circuit automatically, busy tone supervisory circuits etc. and the relevant circuit of this machine warning make it to enter normal operating state.And on the other hand, this high level has oppositely blocked diode D16, D17 again.This makes about 800Hz audible warning starting of oscillation of being made up of U7-5, R49, C39 and send onsite alarming sound by loudspeaker M after Q17, Q18 amplification, and further again reminds people is noted, the room merit has taken place.Also further work the effect of threatening to going into the room ruffian; And on the other hand, form resonance by U7-6, R52, C42 and also begin and amplify after C44 delivers to band coding transmitter module Fb through Q19 externally to launch electric wave in the vibration of the pilot tone of 6KHz.In the electric wave range of receiving other are of the same type, and generally all to be in main frame with the encoding and decoding type be the base state.When receiving by the second machine, launches when including the 6KHz pilot signal receiver module JJb at interior signal, this signal divides two-way, one tunnel low-pass filter circuit of forming through R9, C3, R8 carries out filtering to the 6KHz pilot signal that enters this path, and the signal that keeps lower frequencies such as general voice signal, double-audio signal sends out to outside line through B1 and B2 part winding.Another road enters U2 through C4 and carries out the pilot tone monitoring to realize automatic off-hook.Its pilot tone automatic off-hook principle is: when C4 did not send the 6KNz pilot signal, 8 pin of its U2 often were high level.And when C4 sent into the 6KHz pilot signal and enters 3 pin of U2,8 pin promptly transferred low level to and cause Q5 to end, the Q7 conducting, and relay J 2 adhesives, controlled switch K (J2) also thereby connect has realized the simulation off-hook, this moment, Local Exchange promptly sent dialing tone here.Meanwhile, because of Q7 saturated, former capacitor C 9 is discharged to ground through R17 and Q7, become the 8 pin high level of low level U4-1 after about one or two second, its rising edge pulse is through C11, R18 makes Q8 of short duration conducting occur and has made relay J 3 adhesives once, it is connected in automatic dialing integrated package and dials the K switch (J3) of key again and also connected once, thereby the dual tone phone number of the former storage of U6 will be sent to Q14 through R42, and whether Q14 sends this telephone number and depends on also whether its collector electrode inserts supply voltage Vc, and Vc just has power supply output after having only this machine itself to be triggered to report to the police, in other words, have only itself to have taken place to report to the police and just can outwards send and the relevant dialing of controlling oneself.Though be the state that is positioned at base now, own as being not to be in alarm condition, so just the dialing of oneself outwards can not sent.The confidential outside group number of second is also still started by the second machine, and this is the same with the operating position of cordless telephone.The second machine is after the triggering of reporting to the police, Q15 conducting and output dc voltage Vc, this voltage makes the Q4 conducting through R12, Q5 ends, the Q7 conducting, Q8 conducting adhesive after 1～2 second equally, U6 on the second machine dials the adhesive of integrated package redial key once, and the telephone number of its storage is delivered to Q14 through R42 and amplified after C32 launches the dual tone phone number through the Fb transmitter module again.After the second machine is launched telephone number, the receiver module Jja of first machine receives after after R9, C3, the R8 filtering 6KHz pilot signal in being mixed in again by the B1 coupling, deliver to Local Exchange by outside line.After this telephone number sends, must run into two kinds of situations: the one, if the other side's circuit uses, at this moment will send 0.35 second here and lead to, 0.35 second disconnected 450Hz busy-back signal, the busy tone supervisory circuit that this busy-back signal is made up of U3, U4-4, U4-3 and capacitance-resistance thereof through first and second liang of machines, during busy tone, the 4 pin low levels of U4-3, make the C18 charging bleed off, make the U4-2 high level, the Q6 conducting through D4 ground connection, Q7 is transferred to from conducting to be ended, relay J 2 discharges, and K (J2) disconnects, thereby has realized the simulation on-hook.About 2 seconds of on-hook time.After (by R20 and C18 decision) on-hook, do not had busy tone, Q6 recovers again to end, and Q7 enters conducting again, begins to simulate off-hook and dialing again.If the other side's line idle, Local Exchange can send one second logical, 4 seconds disconnected ring-back tones.Promptly constantly to the other side's ring,, enter not only automatic hand-up 2 seconds then but also redial, till the other side has the people to answer if ring unanswered still about 1 minute can transfer busy tone to again.In case because the other side's off-hook, and with behind the voice answer-back, this voice signal is promptly through R26, C19, after the R25 filtering 6KHz pilot signal, through C25, D6, D7, becoming direct voltage after the C26 rectification makes the Q9 conducting and Q10 is ended, U4-5 output becomes low level, C24 electric capacity is gone into ground through the D8 short circuit, high level appears in U4-6, this high level makes the Q12 conducting through R35, playback control pin 2 pin of audio record circuit are shorted to ground, are stored in and comprise in the voice integrated package that the audio alert information of informing situations such as partner address is coupled to Q13 through C22 and amplifies after C21 launches again.The first machine is promptly delivered to voice messaging the people who receives calls by telephone line after reception.Because that Q29 connects is alert control voltage Vc, so all main frames that is not in alarm condition, its audio alert information circuit can blindly not move.And when the language alarm information circuit began playback, the input that the collector electrode low level of Q12 is sent to U7-2 made its output become high level.This high level charges to C30 through R43, makes the U7-1 output low level after about 18 second time, and this low level makes U7-3 output high level and D15 is oppositely ended through D9.C38 begins to reply charging, and after being full of, U7-4 output becomes low level, thereby Q16, Q15 all transfer cut-off state to.Cancelled dialing, the power supply power supply of circuit such as machine is done in recording playback automatically.On the other hand, U7-4 output transfers low level to, and on-the-spot sound warning circuit and 6KHz pilot signal circuit are quit work.Be that all change the stand-by operation state again over to.

Claims (1)

1, a kind of outside line is destroyed still externally automatic dialing alarm device entirely, it is characterized in that: it is by shell (1), wireless receiving and dispatching antenna (2), power supply and alarm lamp (3), mains switch (4), connect probe binding post (5), the socket (6) that connects telephone set, the socket (7) that connects outside line, emergency alarm button (8), the common installation of audible alarm loudspeaker (9) and circuit board connects and composes, its mutual alignment and annexation are: hole stretched out above wireless receiving and dispatching antenna (2) passed casing (1), relevant corresponding points are electrically connected mutually on its lower end and the circuit board, power supply and report to the police and be installed on machine shell panel middle and upper part branch and be connected with respective point on the circuit board respectively with indicator light (3); Current switch (4) be installed on the machine shell panel upper right quarter and with circuit board on power end be electrically connected mutually; The connection probe is installed on the machine shell panel bottom with binding post (5) and is electrically connected mutually with corresponding probe respectively; The socket (6) of connection telephone set is installed on casing (1) left surface and is connected with telephone set; The socket (7) of connection outside line is installed on casing (1) left surface and is connected with outside line; Emergency alarm button (8) is installed on the machine shell panel upper left quarter and is electrically connected mutually with the self-contained circuit board respective point; Audible alarm loudspeaker (9) are installed on machine shell panel upper left quarter the inside and are connected with the self-contained circuit board respective point; Its circuit is by major-minor machine automatic switching circuit, phone failure monitoring circuit, two, four line change-over circuits, the pilot tone filtering circuit, band coding radio transmitter, band decoding wireless reception circuit, the pilot tone supervisory circuit, the simulation circuit for answering, automatic dial-up circuit, the other side replys supervisory circuit, the busy tone supervisory circuit, simulation on-hook circuit, the language alarm playback circuitry, pilot tone produces circuit, regulator rectifier circuit, dc standby power circuit with beautiful current charge, alert control power circuit, alarm trigger circuit, the time of fire alarming control circuit, audible alarm circuit, light indicating circuit is electrically connected formation jointly mutually, and its interconnected relationship is: telephone wire failure monitoring circuit is respectively by the automatic switching signal line, telephone wire respectively with major-minor machine automatic switching circuit, two, four line conversion lines, telephone set, outside line is electrically connected mutually; Major-minor machine automatic switching circuit is electrically connected with band decoding wireless receiving circuit, band coding radio transmitter respectively mutually by decoding received signal line, the coding line that transmits respectively; The pilot tone filtering circuit is electrically connected with band decoding wireless receiving circuit, two or four line change-over circuits respectively mutually by pilot signal line, pilot tone filtered signal line respectively; Band coding radio transmitter respectively by two or four line switching signal lines, automatic dial-up signal line, pilot tone signal monitoring cable, reply signal monitoring cable, busy tone signal monitoring cable, language alarm recording playback holding wire, pilot tone and produce holding wire and reply supervisory circuit, busy tone supervisory circuit, language alarm playback circuitry, pilot tone with two or four change-over circuits, automatic dial-up circuit, pilot tone supervisory circuit, the other side respectively and produce circuit and be electrically connected mutually; The pilot tone supervisory circuit is electrically connected with band decoding wireless receiving circuit, simulation summary machine circuit respectively mutually by band decoding received signal line, simulation off hook signal line respectively; The simulation circuit for answering is replied supervisory circuit, language alarm playback circuitry, pilot tone with automatic dial-up circuit, the other side respectively by simulation off hook signal line respectively and is produced circuit and be electrically connected mutually; Dc standby power circuit with beautiful current charge is electrically connected with regulator rectifier circuit, alert control power circuit mutually by power line respectively; Regulator rectifier circuit installs each road dc power supply terminal with this respectively by direct current supply line and is electrically connected mutually, and by the detectable signal line, the time of fire alarming control signal wire is electrically connected with all kinds of probes, time of fire alarming control circuit respectively alarm trigger circuit mutually respectively; The time of fire alarming control circuit is electrically connected with alert control power circuit, audible alarm circuit, light indicating circuit respectively mutually by the time of fire alarming control signal wire respectively.

Images