CN2288557Y

CN2288557Y - Anti-theft telephone alarm

Info

Publication number: CN2288557Y
Application number: CN 97201825
Authority: CN
Inventors: 朱士贝
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-18
Filing date: 1997-03-18
Publication date: 1998-08-19
Anticipated expiration: 2007-03-18

Abstract

The utility model comprises a detector, a loud-speaker, an alarm sound source and a control circuit. The control circuit is composed of a power supply unit, a starting unit, a trigger unit, a password unit, an extension removing unit, a hand-free unit, a redialing unit, an alarm sound source selection unit and a telephone socket. The output ports of the detector and the starting unit are connected with the trigger unit; the output port of the trigger unit is connected with the extension removing unit through the password unit; the output port of the extension removing unit is connected with the hand-free unit and the redialing unit; the output port of the redialing unit is connected with the alarm sound source selection unit; the output port of the alarm sound source is connected with the telephone socket; the loud-speaker is connected with the output port of the alarm sound source. The utility model can automatically send alarms to hosts and watchers by present communication devices according to signals acquired by the detector.

Description

Antitheft telephone alarm

The utility model relates to a kind of telephone automatic alarm device, belongs to the security device field.

Follow social progress and growth in the living standard, keeping a lookout of public security is subject to people's attention day by day, but the various alarms that provide in the market all can not directly be notified to owner in different place to the alarm signal at scene, are difficult to really play the effect of strick precaution.

In view of above-mentioned, the utility model will provide a kind of alarm, and it utilizes the existing communication equipment and the means of communication, can send warning from trend owner's telephone set according to the signal that detector obtains.

For reaching this purpose, the utility model by the following technical solutions:

A kind of antitheft telephone alarm, comprise detector, loud speaker, alarm sound source and control circuit, it is characterized in that: described control circuit by power supply, startup, triggering, password, extension set excision, hands-free, redial, the alarm sound source selects all unit and telephone socket to form, wherein: the output of described detector and the output of described start unit connect the input of described trigger element; The output of described trigger element connects the input of described extension set excision unit through described password unit; The output of described extension set excision unit connects described hands-free unit and redials the input of unit; The described output that redials the unit connects the input of described alarm sound source selected cell; The output of described alarm sound source connects described telephone socket; Described loud speaker connects the output of described alarm sound source.

Described alarm sound source comprises integrated music sheet and cassette player, and described loud speaker connects the output of this integrated music sheet.

Described power subsystem comprises battery and the rectifier power source that is made of rectifier and pressurizer.

Described password unit is one group of mechanical switch.

Described alarm sound source is connected with a tamper-proof circuit that is made of transistor, and this transistorized emitter, collector electrode, base stage connect positive power source terminal, the words line rectification positive pole of positive source, alarm sound source respectively.

When alarm is dealt with emergencies and dangerous situations the ring state, if detector detects the infrared signal of variation, just cut off extension by trigger element, connect the hands-free switch of telephone set and redial switch, the alarm sound source that alarm sound source selected cell is selected is delivered to microphone by telephone socket then, thereby utilize existing communication equipment to send predetermined alarm signal, realize reporting to the police automatically to the telephone set that redials the number indication.

Below in conjunction with drawings and Examples the utility model is elaborated.

Fig. 1 is the composition frame chart of alarm;

Fig. 2 is the circuit theory diagrams of alarm.

See also Fig. 1.The utility model comprises detector, loud speaker, alarm sound source and control circuit, control circuit by power supply, startup, triggering, password, extension set excision, hands-free, redial, the alarm sound source selects all unit and telephone socket to form.Wherein: the output of detector contacts the input of bill unit with the output of start unit; The output of trigger element is through the input of password unit extension excision unit; The output of extension set excision unit connects hands-free unit and redials the input of unit; The receive a crime report input of newspaper sound source selected cell of the output that redials the unit; The output of the alarm sound source machine transplanting of rice seat of answering the call; The alarm sound source comprises integrated music sheet and cassette player, and loud speaker is received a crime report and reported the output of sound source.

See also Fig. 2.Power subsystem comprises battery and rectifier power source, rectifier power source is made of transformer B1, rectifier D1～D4,7806 integrated regulator IC1, filter capacitor C1 and C2, voltage-stabiliser tube D6, K1 and K2 are mains switch, and D5 is a power supply indicator, the output-parallel of 6V battery DC and rectifier power source.

Trigger element is composed in series by transistor T 1 and T2, and start unit is made of delay switch K4, and K4 is serially connected between the base stage of positive source and T1, and CK1 is the detector socket, and CK1 connects the collector electrode of D6 and T1.

Extension set excision unit is made of transistor T 3 and relay J 1, and password unit is made of one group of mechanical switch A1, and CK2 is the socket of A1, is connected on base stage and the collector electrode of T3.

Hands-free unit is made of transistor T 4 and relay J 2, redials the unit and is made of transistor T 5 and relay J 3, the normal opened contact of the power supply relay termination J1 of T4 and T5.

Alarm sound source selected cell is made of transistor T 6 and T7, selector switch K3, the emitter of the fixedly termination T6 of K3, the normal opened contact of the power supply relay termination J3 of T6 and T7.

A～I is each pin of telephone socket among the figure, wherein: A, B are that telephone wire inserts pin, C, D connect each extension, A, C are straight-through, B, D connect normally closed contact and the fixed contact of J1 respectively, the answer the call microphone positive pole of machine of answer the call the respectively words line rectification positive and negative electrode of machine of E, the F that draws from fixed contact and the normally closed contact of the J3 repeat key of machine of answering the call respectively, G, H, I.

The alarm sound source comprises MX-08 integrated music sheet IC2 and cassette player, CK3 is the cassette player socket, the fixed contact of selector switch K3 connects the output of T6 and T7, two movable contact meets power end and the CK3 of IC2 respectively, the output one tunnel of IC2 is through the answer the call I pin of machine transplanting of rice seat of resistance, another road drives loud speaker Y through transistor T 9, and the terminal of CK3 is through also the answer the call I pin of machine transplanting of rice seat of resistance.

In addition, the IC2 in the alarm sound source is connected with a tamper-proof circuit that is made of transistor T 8, and the emitter of T8, collector electrode, base stage connect positive power source terminal, the words line rectification positive pole of positive source V+, IC2 respectively.

This alarm is connected with telephone set by telephone socket, and its circuit can be contained in the telephone set, also can mix independent shell.Detector be placed on need antitheft, fireproof regional in, it is popped one's head in over against surveillance zone.

Narrate its operation principle below:

Depress behind the delay switch K4 energized K switch 1 and K2 again, the K4 time-delay was connected after 1 minute, left and was provided with for owner in this 1 minute.K4 connects back T1 conducting, T2 ends, and the circuit of back all is in off-mode.

Enter the surveillance zone of probe as the people, probe just sends signal, the base potential of T2 is risen, so the T2 conducting, and to C4 charging, the T3 conducting after 3 seconds of delaying time, the J1 adhesive, by the line that disconnects D and B extension set is excised, and the normal opened contact by J1 is delivered to the circuit of back to power supply, so the T4 conducting, the J2 adhesive is connected Hands-free key, after C5 delayed time 5～8 seconds, the T5 conducting, the J3 adhesive is by connecting E, F and redial key is connected, and power supply is further reached the circuit of back by the normal opened contact of J3, through C6 and C7 time-delay after 3 seconds, T6 and T7 conducting, after this, the other side's phone (or mobile phone that redial key is put through, beep-pager) with ring.

If K3 originally dialled in the playback side, then T6 and T7 deliver to cassette player with power supply, make its work, and the other side mentions microphone and promptly can hear the sound that cassette player is emitted like this.If K3 originally dialled in the alarm side, then T6 and T7 deliver to IC2 with power supply, make IC2 work, and the other side will hear the alarm sound that IC2 sends like this, and the loud speaker Y of the site of an accident also sounds the alarm simultaneously.

Go home to cause that owner is as long as turned off password in 10 seconds because of owner if this time trigger the alarm probe, T3 just ends immediately, and alarm will can not reported to the police like this.When owner will be away from the scene, as long as press delay switch K4, again cipher switch is located at operating state, within 1 minute, leave and get final product.

If trigger because of the stranger causes, do not know password because of it and can't shut down, so alarm will be reported to the police, if stranger this moment telephone wire is cut off, no-voltage after the telephone set rectification then, T8 is in the electronegative potential conducting because of its base stage, and power supply is added on the IC2, thereby cause alarm song.If cut off civil power, then this alarm relies on its battery to work.

All types of probes such as that the probe of this alarm can adopt is infrared, flue gas, coal gas.Under the more situation in room, can establish a probe in each room, then with the parallel alarm that inserts of these probes.

The utility model has the advantages that: 1. utilize existing communication to notify from a phone call equipment, the alarm signal at scene can be existed Notice is given owner and the guard on duty in different place in several seconds, realizes automatic alarm antitheft, fire, tool Fast response time, characteristics that reliability is high are arranged; 2. circuit is simple, anti-destructive is strong.

The place that this alarm is specially adapted to the unmanned such as family, office and needs to take precautions against.

Claims

1. antitheft telephone alarm, comprise detector, loud speaker, alarm sound source and control circuit, it is characterized in that: described control circuit by power supply, startup, triggering, password, extension set excision, hands-free, redial, the alarm sound source selects all unit and telephone socket to form, wherein:

The output of described detector and the output of described start unit connect the input of described trigger element;

The output of described trigger element connects the input of described extension set excision unit through described password unit;

The output of described extension set excision unit connects described hands-free unit and redials the input of unit;

The described output that redials the unit connects the input of described alarm sound source selected cell;

The output of described alarm sound source connects described telephone socket;

Described loud speaker connects the output of described alarm sound source.

2. antitheft telephone alarm as claimed in claim 1 is characterized in that: described alarm sound source comprises integrated music sheet and cassette player, and described loud speaker connects the output of this integrated music sheet.

3. antitheft telephone alarm as claimed in claim 1 is characterized in that: described power subsystem comprises the rectifier power source that is made of rectifier and pressurizer.

4. antitheft telephone alarm as claimed in claim 1 is characterized in that: described power subsystem comprises battery.

5. antitheft telephone alarm as claimed in claim 1 is characterized in that: described password unit is one group of mechanical switch.

6. antitheft telephone alarm as claimed in claim 2, it is characterized in that: described alarm sound source is connected with a tamper-proof circuit that is made of transistor, and this transistorized emitter, collector electrode, base stage connect positive power source terminal, the words line rectification positive pole of positive source, alarm sound source respectively.