CN2233647Y - Multi-subscriber connection arrangement for telephone network alarm system - Google Patents

Abstract

The utility model provides a multi-user connecting device for telephone network alarm systems. The utility model comprises a shared connector and a single user alarm, wherein, the shared connector can be shared by multiple alarm users to use. The shared connector is composed of an alarm, a broken wire address coding memory, a telephone control logic circuit, a busy tone recognizing circuit, a telephone number dialing circuit and a direct-current power supply. The utility model has the advantages that the utility model solves the problem of loging in network to alarm for people having no telephones, and can guard against installing telephones stealingly or wire-tapping by the people having no telephones. When the telephone line is busy, the utility model can break off the conversation to alarm first, when the user line is shorn, the utility model can alarm automatically immediately. The utility model has the advantages of reliable operation and convenient installation.

Description

Multi-subscriber connection device of telephone network alarming

The utility model relates to the isolated plant that utilizes in the telephone network transmission warning message system, does not particularly have a kind of multi-subscriber connection device that the phone family also can network and report to the police.

At present, utilize the warning system and the isolated plant thereof of telephone network transmission warning message to come into operation, wherein representational is The First Research Institute of Ministry of Public Security's development " DB-1 type local police station area under one's jurisdiction telephone network transmission warning system " and " DBK-1 type telephone call controller " thereof.But this alarm controller is only limited to phone family effect is arranged, and the installation site is restricted, is no more than 10 meters farthest apart from telephone set.Cost is higher, and the user is difficult for accepting.Also have a kind of utility model patent, name is called " a kind of interface arrangement that connects alarm and telephone network " (application number 89200024.4), also must receive by user's the telephone set.If be used for the phone family, there are two problems will be difficult to solve.The first utilizes house lead in to install a telephone steathily and tap phone; It two is when alert takes place, if the line is busy makes a phone call for this this phone, just can't report to the police.At present, China's telephone penetration rate is low, and the described shortcoming of above-mentioned prior art makes the warning that can not network of the no phones of great majority family.

The purpose of this utility model just is overcoming these shortcoming and defect parts of prior art, develops the multiple user of a kind of more advanced telephone network alarming and connects to apply to install and put.It can be used for the user of telephone, also can be used to be unkitted the user-network access warning of telephone.And can prevent to steal dress, tap phone, can also when the line is busy, preferentially report to the police, the range of application of telephone network alarming system is further enlarged.

This device comprises common connector and single household alarm two parts.Common connector wherein is made up of five parts: the one, and alerts user address and broken string geocoding memory, the 2nd, telephone set control logic circuit, the 3rd, busy tone identification circuit, the 4th, telephone dialer circuit, the 5th, DC power supply.Single household alarm is wherein formed by the warning mechanical switch or by the transducer of on off state output.A common connector can be shared for a group alarm user, as long as have a family that telephone has been installed among every group alarm user.Line connecting relation: each single household alarm links to each other with alerts user address and broken string geocoding memory in the shared connector respectively.The coding memory links to each other with the telephone set control logic circuit again.The telephone set control logic circuit links to each other with telephone set, busy tone identification circuit, telephone dialer circuit respectively again.The busy tone identification circuit links to each other with outside line again.Telephone dialer circuit links to each other with outside line again.DC power supply does common source for each circuit of common connector.

Alerts user address and broken string geocoding memory are made up of triode signal recognition circuit, two monostable triggering integrated circuit, NAND gate, trigger and binding post, resistance, electric capacity.

The telephone set control logic circuit is made up of integrated circuit NAND gate, decade counter, time-base circuit chip, triode, relay and resistance, electric capacity.

Telephone dialer circuit is made up of analog switching ic, dialing integrated circuit, polar protective circuit, phone on-hook off-hook control transistor circuit and resistance, electric capacity.

The busy tone identification circuit is made up of phase-locked loop intergrated circuit, inverter, NAND gate and resistance, electric capacity.

When the single household alarm adopts mechanical switch, resistance of switch ends cross-over connection.When the circuit between it and the shared connector was cut off, can report to the police from trend received processing center and sends the broken string address information.

Seize the opportunity and steal dress and tap phone without authorization in order to prevent from not have the telephone subscriber, it is indoor that the common connector of this device should be placed in the telephone subscriber of its shared outside line, perhaps outdoor eminence.

The utility model and prior art contrast, its major advantage is: the first, solve vast no telephone subscriber technically and also can utilize telephone network system to report to the police; The second, the phone family be can prevent from not have and dress and tap phone stolen; The 3rd, having solved warning and preferentially having reported to the police when the line is busy with conversation generation simultaneously, and then having recovered talking state: the 4th, the installation of common connector and single subscriber alarm device is not limited by the strictness of telephone set position; The 5th, circuit is simple, easy-to-connect, and cost is low, and failure rate is also low; The 6th, this device also has the warning function of self being damaged, and is cut off when its circuit, can report to the police automatically to receiving center.

Accompanying drawing 1 is the telephone network alarming system block diagram, is the utility model part in the frame of broken lines among the figure.

Accompanying drawing 2 is common connector circuit block diagrams of the present utility model.

Accompanying drawing 3 is circuit theory diagrams of the present utility model.

In conjunction with the accompanying drawings embodiment of the present utility model is described below:

L4.1 among Fig. 2～4.9 are nine single household alarms, and button (or probe normally opened contact) S1～S9 reaches and the resistance R 44～R52 of company forms by often opening among Fig. 3.

Warning broken string geocoding memory among Fig. 2, by ten monostable circuits that Fig. 3 middle connecting terminal J1～J9, resistance R 1～R18, capacitor C 15～C23, triode P1～P9, two monostable triggering integrated circuit (CD4098) IC4～IC8 and resistance R 19-R28, capacitor C 1-C10 constitute, 13 input nand gates (74HC133) IC1 and IC11,8D trigger (74HIC534) IC12 and IC13 form.

Telephone control circuit among Fig. 2 is made up of integrated circuit NAND gate (74HCOO) IC2 among Fig. 3 and IC3, decade counter (CD4017) IC9 and IC10, time-base circuit chip (NEC555) IC14, triode N4 (9014C), relay R L.

Telephone dialer circuit among Fig. 2 is made up of triode N1～N3, the G1 of the analog switch among Fig. 3 (CD4066) IC15～IC17, telephone dialing integrated circuit (WE9145) 3IC1, polar protective circuit D1～D4 that storage phone number function is arranged, phone on-hook, off-hook control circuit.

Busy tone identification circuit among Fig. 2 is made up of the phase-locked loop among Fig. 3 (LM567) 1IC4, hex inverter (CD4069) 1IC2, NAND gate (74HC00) 1IC3.

Power supply among Fig. 2 is adjusted pipe 2N1 (9014) electric capacity 2C1,2C2,2C3,2C4 by Fig. 3 transformer B1, rectifying tube 2D1,2D2,2D3, voltage-stabiliser tube 2Z1 output, and storage battery BT forms.

The multi-subscriber connection device of telephone network alarming operation principle is summarized as follows:

The basic principle of this device is a simulation manual dialup storage phone.9 users' alarm code is preset in the memory 1～9 of dialing integrated circuit 3IC1 respectively.9 user's break alarm codings all are stored in the memory O of 3IC1.The storage coded format is " warning receiving center telephone number ten several time-out sign indicating number ten alarm codes ".

If user 1 reports to the police button S1 closure.11 pin of IC4 become low level by high level, trigger monostable flipflop IC4, and its 9 pin output negative pulse is to 12 pin of NAND gate IC11.The 9 pin output positive pulse of IC11 triggers the monostable trigger-action circuit of being made up of 1～6 pin of IC2 to 13 pin of NAND gate IC2.The 6 pin output negative pulse of IC2 is to 13 pin of NAND gate IC3 and 5 pin of NAND gate 1IC3.The 6 pin output positive pulse of 1IC3 is to clear terminal 15 pin of counter IC9, IC10.After the counter O reset, 11 pin of IC9, IC10 are low level, and 1,2 pin of the NAND gate IC3 that links to each other with them are low level, 3 pin of IC3 are that high level drives triode N4 conducting through resistance 1R15, make relay R L adhesive, the disconnect user telephone set makes outside line insert the warning dial-up circuit.When monostable IC2 triggered, 5,6 pin became high level, and the CP that delivers to 8D trigger IC12, IC13 through capacitor C 12 holds 11 pin, latched the input state of this moment.9 pin of IC4 are also sent into input 13 pin of IC12 by high step-down, and the state of this variation is latched under the CP impulse action, and the station address number is stored.After monostable IC2 returned to stable state, its 6 pin was a high level, and 9,10,11 pin of IC3 are low level, and IC2 input 12 pin that link to each other with them are low level, forbade other alarm signal input, realized self-locking.The 8 pin output high level of IC3, the then basic IC circuit 14 of 11 pin output high level through NAND gate 1IC3 starts time-base circuit work, and the 3 pin output clock pulse of IC14 is to input 14 pin of first order counter IC9.Under the 8 pin high level effects of IC3,3 pin of 1IC3 become low level, and the counting of the two-stage that links to each other with it counter IC9, IC10 allows end 13 pin for allowing count status, and counter enters count status.1IC311 pin high level is again through resistance 3R10, driving triode N2 conducting, dialing integrated circuit 3IC1 gating enters operating state, and its 10 pin output high level makes triode N1 conducting through resistance 3R6, then make triode G1 conducting, finish the action of analog telephone off-hook.

Rolling counters forward is when 2 pin of IC10 become high level, and the action that the telephone set CK call key is pressed in simulation is finished in 8, the 9 pin conductings of analog switch IC16; When 2 pin that count down to IC10 became low level, CK call key discharged, and finishes the action of once pressing CK call key; 4 pin that count down to IC9 and IC10 are during simultaneously for high level, the 6 pin step-down level of the NAND gate IC3 that links to each other with them, the output of 8D trigger IC12, IC13 allows end 1 effective, the alerts user that latched of output number 1, the 12 pin output power transformation of IC12 is flat, the action of pressing numerical key " 1 " on the telephone set is finished in 1, the 2 pin conductings of analog switch IC16; Count down to IC9, IC10 4 pin any one when becoming low level, 6 pin of IC3 are high level, forbid the output of 8D trigger, finish the release actuation of keys.The telephone number and the alarm code that are stored in No. 1 memory among the dialing chip 3IC1 are promptly transferred to automatically.After all code was transferred to, when highest order 11 pin of counter IC9, IC10 became high level simultaneously by the time, 3 pin of IC3 became low level, and relay R L discharges, and outside line is returned subsets.Under the 3 pin low level effects of IC3,9,10,11 pin of IC3 are high level, remove self-locking, allow to accept second alarm signal.This moment, 8 pin of IC3 were low level, the time-base circuit failure of oscillation, and N2 ends, and the warning dial-up circuit is in hook state, and 13 pin of counter IC9, IC10 are high level, forbid counting.So far, finish once dialing process automatically.

If after having dialled telephone number, meet busy tone, busy-back signal detects through phase-locked loop 1IC4, forms integrating circuit and single stabilization delay circuit through 1IC2, at 1.8 seconds～2.2 seconds the positive pulse of 6 pin output of 1,IC2 9,10 pin to NAND gate 1IC3,8 pin output low levels, make the 3 pin high level of 1IC3, forbid rolling counters forward, make time-base circuit IC14 failure of oscillation simultaneously, N2 ends, and finishes the action of telephone set on-hook.6 pin of 1IC3 become high level makes counter O reset, and 6 pin of 1IC2 return to low level by the time, repeat above-mentioned dialing procedure.

If when having any velamen destructiveness to break, promptly produce break alarm in the connecting line between subscriber alarm device S1～S9 and the binding post J1～J9.The break alarm signal is taken from the collector electrode of triode P1～P9.When broken string took place, the triode that links to each other with it did not have bias current, and its collector electrode becomes low level, through NAND gate IC1 output high level, remove to trigger input 15 pin of the 7 pin output negative pulse of monostable IC5 to NAND gate IC11, its output output positive pulse, alarm procedure is the same.

Monostable circuit IC4～IC8 is for preventing that certain User Alarms state from removing for a long time, influences other user and can not report to the police and be provided with.After carrying out the dialing of once reporting to the police, immediately outside line is given back subsets.Each 16～18 seconds warning dialing time, decide on city's telephone network connecting time.The time that takies subscriber phone is shorter, for the report to the police enforcement of shared pair of telephone lines of multi-user is provided convenience.

Claims (7)

1, a kind of multi-subscriber connection device that is used for the telephone network alarming system, it is characterized in that comprising common connector and single household alarm two parts, common connector wherein is by alerts user and broken string geocoding memory, telephone control circuit, the busy tone identification circuit, telephone dialer circuit and DC power supply are formed, single household alarm is wherein formed by the warning mechanical switch or by the transducer of on off state output, a common connector can be shared for a group alarm user, as long as have a family that telephone has been installed among every group alarm user, each single household alarm links to each other with alerts user and broken string geocoding memory in the shared connector respectively, the coding memory links to each other with telephone control circuit again, telephone control circuit again respectively with telephone set, the busy tone identification circuit, telephone dialer circuit links to each other, the busy tone identification circuit links to each other with outside line respectively again with telephone dialer circuit, and DC power supply does common source for each circuit of common connector.

2, multi-subscriber connection device of telephone network alarming according to claim 1, it is characterized in that alerts user address and broken string geocoding memory, form by triode signal recognition circuit, two monostable triggering integrated circuit, NAND gate, trigger and binding post, resistance, electric capacity.

3, multi-subscriber connection device of telephone network alarming according to claim 1 is characterized in that the telephone set control logic circuit, is made up of integrated circuit NAND gate, decade counter, time-base circuit chip, triode, relay and resistance, electric capacity.

4, multi-subscriber connection device of telephone network alarming according to claim 1; it is characterized in that telephone dialer circuit, form by analog switching ic, dialing integrated circuit, polar protective circuit, telephone set on-hook off-hook control transistor circuit and resistance, electric capacity.

5, telephone network alarming multi-purpose connecting device according to claim 1 is characterized in that the busy tone identification circuit, is made up of phase-locked loop intergrated circuit, inverter, NAND gate and resistance, electric capacity.

6, according to wanting profit to require 1 described multi-subscriber connection device of telephone network alarming.When it is characterized in that the single household alarm adopts mechanical switch, resistance of switch ends cross-over connection.

7, multi-subscriber connection device of telephone network alarming according to claim 1 is characterized in that common connector should be placed in the indoor or outdoor eminence of telephone subscriber of its shared outside line.

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