CN2488238Y - Remote-bidirectional transmission automatic monitor - Google Patents

Abstract

The utility model relates to a remote double directional transmission monitor which belongs to safe guard product. The utility model comprises a sensor, a monitor, an alarming phone dial and phone signal distinguish circuit, a controlling signal receiving and switch enforce circuit and a power. The alarming phone dial and phone signal distinguish circuit comprises a relay, a phone line, a polarity protecting commute, a voltage regulation, a phone automatic dialing integrated circuit, a magnifier, a double calculating magnifier, a second demodulator, a time delay and photoelectrical couple, a memory and a voice processing and playing device and other circuits. The controlling signal receiving and switch enforcing circuit comprises a commute, an electron switch, a voltage regulation, four NAND repositioning, warning voice, double voice and multi frequency decoder, coder, a switch controlling and relay enforcing circuits. The utility model has a complete safe guard function and the utility model can transmit in double directions; the utility model is easy to be popularized with a cheap price; and the utility model is applicable to the family, the hotel, the office building, the museum and so on.

Description

Long-range transmitted in both directions automator

Technical field

The utility model relates to the domestic protection crime prevention device, a kind of long-range transmitted in both directions automator that is used for family and other occasion security personnel, service of more clearly saying so.

Background technology

Mainly containing that domestic protection device is a few days ago popularized is following several: 1, hand free interphone antitheft door.Generally install on the antitheft door of each resident unit.The visitor can converse with owner with the intercom on the pushbutton enable antitheft door.2, video intercom.Have the unit with or single household with two kinds of forms.Owner can see visitor's image, also can talk with, and should not put into further affirmation.3, warning device.As the alarm of forcing open the door, broken window alarm, illegal human body alarm, smoke alarm etc.These alarms can send warnings such as sound, light when something unexpected happened.4, the domestic intelligent crime prevention system that preventing function is more complete.In above-mentioned security personnel's crime prevention device, should popularize for 1～3 kind, but function is more single.The 4th kind of function is more complete, but costs an arm and a leg, and is difficult for popularizing; In addition, major part not to the controlled function of indoor household electrical equipment, generally is an one-way transmission also.

It is complete that the purpose of this utility model provides a kind of security personnel's preventing function, can transmitted in both directions, and price is more cheap again, simple and reasonable, applicability is strong, is easy to popularize and the long-range transmitted in both directions automator of expansion.

Summary of the invention

In order to achieve the above object, the long-range transmitted in both directions automator of the utility model is by being installed in door, window, transducer, the watch-dog of locating that is connected with transducer such as indoor, being installed in alarm call in the watch-dog and dialling automatically and send and telephone signal tone identification circuit and control signal receives and switch executive circuit and constituted to the power supply of above-mentioned component circuitry supply of electrical energy.Alarm call dial automatically send and the telephone signal tone identification circuit by switch triode relay circuit that is connected with transducer and inverter switch triode relay circuit; the telephone wire that is connected with the switch triode relay circuit; the polarity protection rectification circuit that links to each other with telephone wire; the voltage stabilizing circuit that links to each other with the polarity protection rectification circuit; the telephone automatic dialing integrated circuit that links to each other with voltage stabilizing circuit; the amplifying circuit that links to each other with the telephone automatic dialing integrated circuit; the preposition level that links to each other with telephone wire amplifies dual operational amplifier; the diode demodulator that links to each other with dual operational amplifier; the pulse discrimination circuit that links to each other with diode demodulator; time-delay that links to each other with pulse discrimination circuit and photoelectrical coupler; the memory and the Language Processing player thereof that link to each other with time-delay and photoelectrical coupler constitute.

Control signal receive and the switch executive circuit by resetting with capacity coupled rectification circuit, the electronic switching circuit that links to each other with rectification circuit, the voltage stabilizing circuit that links to each other with electronic switch, Schmidt's four NAND gate of linking to each other with voltage stabilizing circuit with telephone wire and prompting sound circuit, being constituted with the two sound multifrequency decoding circuits that reset and prompting sound circuit links to each other, the decoding circuit that links to each other with two sound multifrequency decoding circuits, the ON-OFF control circuit that links to each other with decoding circuit and execution relay circuit thereof.

The utility model can be used for the remote double in places such as family, office, archive office, safe care registry, hotel guest-room to transmitting, monitoring.Transducer can be door status sensor (sensing of forcing open the door), vibration-type dual technology sensor (the broken sensing of glass), human body sensor (illegal human sensing), smog (fire) transducer, pernicious gas transducer or the like.When indoor robbed or burgled or when the condition of a disaster took place, the automatic short circuit of transducer became alarm condition.Signal is sent on the telephone wire and exports, and the alarm call number of storage is in advance transferred to.These alarm calls can be phones or the like of phone, sub-district security personnel's phone or public security department of owner's mobile phone, beeper, Work Telephone, relatives and friends.After phone was transferred to automatically, the telephone signal of returning had three kinds: dialing tone, busy tone and ring-back tone.This chance is discerned automatically.If busy tone, the utility model can redial automatically.If be switched on, will start the playback relay and make the language processor playback, to master alarm.

Control signal receives and the switch executive circuit is used to realize owner from the instruction of sending at a distance, as the switch household electrical appliance etc., realizes owner's wish.When the user sent the dual-tone multifrequency control signal by outside telephone stations, the utility model through decoding decoding, made controlled object accept commands for controlling by carrying out switch signal at last.

Task of the present utility model comes to this and finishes.

The utility model provide a kind of security personnel, strick precaution and service, function complete, can transmitted in both directions, price is more cheap again, the long-range transmitted in both directions automator that can carry out remote control to indoor household electrical equipment.It can be widely used in the safety management of occasions such as family, guest room, office, archives, museum, safe care registry.

Description of drawings and embodiment

Below in conjunction with embodiment and accompanying drawing thereof the utility model is done further explanation.

Fig. 1 is the structural representation of the watch-dog of embodiment 1.

Fig. 2 sends for the alarm call of embodiment 1 dials automatically and the circuit theory diagrams of telephone signal tone identification circuit.

Fig. 3 is the circuit theory diagrams of control signal reception and switch executive circuit.

Shown in Figure 1, the watch-dog of embodiment 1 is dialled automatically by the watch-dog 2 that links to each other with transducer 1, external power supply 3 and alarm call, and transmission and telephone signal tone identification circuit and control signal receive and switch executive circuit 4 constitutes.

Shown in Figure 2, alarm call dials automatically and sends and the telephone signal tone identification circuit amplifies dual operational amplifier 12, two utmost point demodulators 13, pulse discrimination circuit 14, time-delay and photoelectrical coupler 15, memory 16 and Language Processing player 17 by switch triode relay circuit 5, inverter switch triode relay circuit 6, telephone wire 7, polarity protection rectification circuit 8, voltage stabilizing circuit 9, telephone automatic dialing integrated circuit 10, amplifying circuit 11, preposition level and constitutes.

But telephone automatic dialing circuit analog telephone is put fork, then the alarm call number that sets in advance is sent.The automatic hand-up that finishes of reporting to the police in addition.Circuit is mainly by relay 18,19,20, inverter 21,22,23, triode 24,25,26, rectification circuit 8, compositions such as transducer 1 and telephone automatic dialing integrated circuit 10.Transducer 1 need be connected into the short-circuit alarming state.When in case the alarm signal input is arranged, (promptly closed), A point current potential is zero.Triode 24,25 conductings.Then relay 18,19 adhesives, telephone set is put fork.By the busy tone or the ring-back tone telephone signal of telephone wire input,,,, provide supply voltage to integrated circuit 10 by voltage stabilizing circuit 9 capacitance voltage stabilizings to+3.2V. again by the normally open contact of relay 19 through polarity protection rectification circuit 8 by relay 19 normally open contacts.The step-down of triode 27 conductings output simultaneously level, 5 pin that make integrated circuit 10 are VSS.Even being in, its dialing integrated circuit treats dialing status.After the relay 19 relay adhesives, through delaying time about about 12S.4 pin of dialing integrated circuit 10 and 18 pin are connected in relay 20 adhesives.Promptly insert,,, deliver to the number that output will be stored in advance on the telephone line 7 by normally open contact, the rectification circuit 8 of relay 19 and 18 and transfer to through triode 11 amplifying circuits by its 12 pin output setting in advance the alarm call number address wire of depositing.

If the line is busy (busy tone) for chance the other side after busy tone identification is differentiated, control redials, relay 28 work.Repeat above-mentioned dialing procedure.Up to putting through.

When alarm signal is imported, relay 18 work, two closings of contact.Telephone wire and alarm call line are connected, finished phone differentiation and speech signal and send.

Differentiating busy tone exactly is the key that phone is put through automatically.Common telephone signal has three kinds.Be dialing tone, busy tone, ring-back tone, by identifying three kinds of telephone signals, just can the decision systems operating state, extraneous alarm signal input, phone detects telephone signal after putting the fork dialing automatically, if busy tone, dialing again.Through differentiation is dialing tone, treats that dialing tone finishes (waited for the people that the answers telephone time of taking in 0～one minute, otherwise change the state of redialing automatically over to), then starts 29 work of playback relay.The language processor playback.Integrated circuit 12 is a LM358 low-power consumption dual operational amplifier.Can under the single supply spare part, work.Now amplify with doing that telephone signal is carried out preposition level.Resistance 30,31 decision multiplication factors, the model that the signal after amplifying is sent into 13, two demodulators of diode demodulator circuit is LM567.First 5., 6. external resistance, the electric capacity of pin has determined the internal voltage controlled oscillator centre frequency, the FO=1/1.1RC frequency range.From 0.1～500KHZ. the 1., 2. pin connects electric capacity 32,33. respectively over the ground and constitutes filter network and loop low-pass filter networks, the 2. electric capacity that pin connects determine demodulator bandwidth, capacitance values is big more, loop bandwidth is narrow more.3. pin be input, requiring input signal is greater than 200mV.The 8. pin be logic output terminal, when device the 3. pin input width greater than 200mV.During the signal of frequency in bandwidth of a device, 8. the pin level by the hypermutation low level, for busy tone is isolated in differentiation.This circuit adopts the two-stage demodulator.First order demodulator 34 demodulates the square wave busy-back signal of 450HZ dialing tone and 0.35HZ, its centre frequency F1=1.1R75 ^*C35.Second level demodulator 36 demodulates square wave busy-back signal (the centre frequency F2=1.1/R37 of 0.35HZ ^*C38), through the 8. pin output low level of electric capacity 39 coupling input second level demodulators 36.

For increasing the reliability of system, improve antijamming capability.After demodulator output, signal is sent into pulse discrimination circuit 14.Time constant T=R * C in the circuit.For preestablishing the reference pulse width.The regulating circuit time constant when making the width of identification input signal greater than set definite value, just has output.Another time constant is to be used for controlling output pulse width, when in the telephone wire busy tone being arranged, and second level demodulator 36 output low levels, inverter 40 output high level.After the input signal width compared, inverter 41 output high level.Triode 42 conductings, relay 28 work.Redial the normally open contact work of relay 28, reach the purpose that redials.If busy tone repeats said process once more.

First order demodulator is sent into the pulse discrimination circuit of being made up of inverter 43-1,44,45,46,43-2 etc. simultaneously by 34 outputs.Be used for differentiating ringing tone signal, so that the playback of control language processor.When timing, T were chosen in the dialing tone end, inverter 43-2 output high level triggered integrated circuit 47 delay circuit work, through photoelectrical coupler 48, promoted the work of playback relay, and integrated circuit 47 is delayed time about 20 seconds.Promptly when telephone set is put through, for the first time behind the ring-back sound, during the sound circuit playback 20 seconds, if the other side does not also hear content phone content and hangs up, transmitted busy tone in the telephone set this moment.Circuit is reworked.Playback again after putting through is removed up to alert.

In telephone alerting system, adopt integrated circuit 17 minimum systems, with a slice memory 16.For reducing quantization noise, improve language tonequality, the sampling bits rate is chosen as high-grade 32K, selects the 640K crystal oscillator for use.10 seconds recording playback time, can satisfy instructions for use.41 pin of integrated circuit 17 are for finishing indication output end.Opening when making when the loop recording playback, is low level, is used for driving work indication.Now with two contacts of the external relay 49 of 41 and 32 pin, when two contact adhesives, realize continuous playback.

Shown in Figure 3, control signal receive and the switch executive circuit by telephone wire 7 with capacity coupled rectification circuit 50, electronic switching circuit 51, voltage stabilizing circuit 52, four NAND gate reset and prompting sound circuit 53, two sound multifrequency decoding circuits 54, decoding circuit 55, ON-OFF control circuit 56 and carry out relay circuit 57 and constituted.

When the incoming call of external control telephone signal, the AC signalling signal becomes direct voltage by electric capacity through 50 rectifications of rectification full-bridge, after capacitance-resistance 58,59 postpones, makes triode 60 conductings, thereby makes electronic switch 51 conductings again.Finish analog telephone and carry machine.And on voltage-stabiliser tube 52 generation+6V voltage, make Schmidt's four NAND gate circuit 53 get voltage power supply, so on the one hand: NAND gate 61, resistance 65, electric capacity 66 are formed delay control circuit, export the high level of about 60S, keep electronic switch 51 conductings, on the one hand, the high level of NAND gate 62 output 3S, as the reset signal of decoding circuit, the prompting sound circuit of compositions such as NAND gate 63,64, triode 67 produces 3S1.5KHZ audio prompt tone signal simultaneously.Can send into the password of the control command that sets in advance.

When the user sends dual-tone multifrequency decoding (DTMF) control signal by telephone set, through telephone wire 7, voltage stabilizing circuit 50 two, 69 transmission of electronic switch 51, electric capacity 68, resistance deliver to 2 pin inputs of integrated circuit 54 (MT8870), MT8870 is two a sound multifrequencies decoding application-specific integrated circuit (ASIC).After the dtmf signal that receives is decoded as tetrad (binary-coded decimal), input decoding circuit 55 (CD4028).The CD4028 integrated circuit is binary-coded decimal one a decimal code decoder, with the binary-coded decimal decoding back output of input.The decoding person of choosing is " 1 ".Otherwise be " 0 ".For convenience of description, only select O in this circuit working schematic diagram ₁-O ₉Output.

Remote telephone opens and closes controlled object, is to finish by opening or closing the execution cryptochannel respectively.See circuit theory diagrams, contained four rest-set flip-flops and integrated circuit 71 are formed first via control and are opened and close the controlled object cryptochannel in the integrated circuit 70.In like manner, integrated circuit 72 and the second tunnel control of 73 compositions open and close the controlled object cryptochannel.It is example that course of work narration is carried out cryptochannel with the first via: integrated circuit 71 is formed bistable circuit, and its output is subjected to 70-1,70-2 " to open " control of password testing circuit and 70-3,70-4 " pass " password testing circuit.When detecting " opening " password (this routine circuit is selected two), make integrated circuit 71 outputs be " 0 ", relay 74 adhesives make its closing of contact open controlled object.When detecting " pass " password, make integrated circuit 71 outputs be " 1 ", relay 74 discharges, and its contact is opened, and closes controlled object.

9 outputs of integrated circuit 55 and each password detect and constitute an encoder matrix circuit between the input.By changing the point of contact of encoder matrix, can change the circuit password that " pass " controlled object " is opened " on each road.Link then by this routine circuit: " opening " password of the first via is 1,2." pass " password is 3,4.

The utility model can also join with video circuit, password latching circuit etc., makes function more complete, more reliable.Present embodiment can be widely used in the safety precaution and automatic control in places such as family, archives, museum, guest room.

Claims (2)

1; a kind of long-range transmitted in both directions automator; it is by being installed in door; window; the indoor transducer that waits the place; the watch-dog that is connected with transducer; being installed in alarm call in the watch-dog dials automatically and sends and telephone signal tone identification circuit and control signal receives and switch executive circuit and constitute to the power supply of above-mentioned component circuitry supply of electrical energy; it is characterized in that said alarm call dial automatically send and the telephone signal tone identification circuit by switch triode relay circuit that is connected with transducer and inverter switch triode relay circuit; the telephone wire that is connected with the switch triode relay circuit; the polarity protection rectification circuit that links to each other with telephone wire; the voltage stabilizing circuit that links to each other with the polarity protection rectification circuit; the telephone automatic dialing integrated circuit that links to each other with voltage stabilizing circuit; the amplifying circuit that links to each other with the telephone automatic dialing integrated circuit, the preposition level that links to each other with telephone wire amplifies dual operational amplifier; the diode demodulator that links to each other with dual operational amplifier; the pulse discrimination circuit that links to each other with diode demodulator; time-delay that links to each other with pulse discrimination circuit and photoelectrical coupler; the memory and the Language Processing player thereof that link to each other with time-delay and photoelectrical coupler constitute.

2, according to the described long-range transmitted in both directions automator of claim 1, it is characterized in that said control signal receives and the switch executive circuit by with telephone wire with capacity coupled rectification circuit, the electronic switching circuit that links to each other with rectification circuit, the voltage stabilizing circuit that links to each other with electronic switch, Schmidt's four NAND gate that link to each other with voltage stabilizing circuit reset and prompting sound circuit, with the two sound multifrequency decoding circuits that reset and prompting sound circuit links to each other, the decoding circuit that links to each other with two sound multifrequency decoding circuits, ON-OFF control circuit that links to each other with decoding circuit and execution relay circuit thereof constitute.

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