CN2232176Y - Automatic control voice theft-proof alarm for telephone set - Google Patents

Abstract

The utility model provides an automatic control voice theft-proof alarm for a telephone set, which is composed of an outer shell, an external wire connector and circuits such as a single chip computer, identification, on-hook and off-hook, dialing, sensor, voice, etc., wherein, the identification, the on-hook and the off-hook circuits are respectively connected with input end and output circuit of the xternal wire connector; the dialing circuit is composed of an analog switch, a keyboard and a numbers emitting chip; an output mouth of the single chip computer via the analog switch and the keyboard is connected with the input of the numbers emitting chip; the output of the numbers emitting chip is connected with the on-hook and off-hook circuits after being driven; the output of the sensor circuit is connected with the input foot of the single chip computer; the control input foot of the voice circuit is connected with the output foot of the single chip computer, and the output of the voice circuit is connected with the on-hook and off-hook circuits. The utility model is suitable to be used in the environments such as household, hotels, banks, shops, hospitals, etc.

Description

Automatic control voice call burglar alarm

The utility model relates to a kind of device of reporting to the police by the phone transmission circuit.

Along with the raising of living standards of the people, phone has progressed into huge numbers of families, various devices of reporting to the police by telephone line also occurred thereupon.But at present there is following shortcoming in telephone alarm: telephone alarm to predefined alarm call dialing, is just reported to the police and no matter whether alarm call is connected to alarm call behind the FD finished dialing after its detector detects alarm.Therefore this alarm generally adopts the alarm method of dialing repeatedly, to guarantee that alarm is sent to the phone of receiving a crime report.Owing to be to dial repeatedly, reporting to the police can not stop after reporting to the police successfully automatically, therefore certainly will influence other User Alarms.In addition, voice use and also to bring some problems, cause voice to lose as the defeated line circuit outage of phone or telephone exchange user circuit load increases and causes that telecommunication department bans use of etc.

The utility model will provide a kind of simple in structure, easy to use and reliable automatic language alarm overcoming under the not enough situation of prior art.

The utility model adopts following scheme to realize:

Automatic control voice call burglar alarm, comprise the identification circuit of sensor circuit, the connection signal of shell, outer line interface, sound circuit, the various alarms of detection, to dial-up circuit, the governor circuit of predetermined alarm call dialing, be connected on outside dislodging machine circuit in the output loop of line interface, identification circuit is connected on the input of outer line interface.Wherein:

Described governor circuit is a single-chip microcomputer; Described dial-up circuit is made up of analog switch, keyboard and transmitting ic, the input of this analog switch connects the delivery outlet of described single-chip microcomputer, output connects described keyboard, described keyboard connects the input port of described transmitting ic, and the output of described transmitting ic connects described dislodging machine circuit after driving; The output of described sensor circuit connects the input pin of described single-chip microcomputer; The control input pin of described sound circuit connects the output pin of described single-chip microcomputer, and the output of sound circuit connects described dislodging machine circuit.

This device receives external information by transducer, carries out judgment processing earlier by microcomputer, controls the dial-up circuit number of sending out again, after dial-up circuit distributed the telephone number of storage in advance, microcomputer just detected identification circuit, in case the other side connects, microcomputer just starts sound circuit, reports to the police with linguistic form to the appointed place.This device four groups of telephone numbers that prestore are sent out number order to four till one group of closing of the circuit is arranged.Warning this device of back that finishes automatically shuts down, and avoids causing that the line is busy.

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is circuit theory diagrams of the present utility model.

Referring to Fig. 1: the utility model is made of shell, outer line interface, governor circuit 1, sensor circuit 2, identification circuit 3, dislodging machine circuit 4, urgent circuits for triggering 5, dial-up circuit 6, sound circuit 7.Wherein:

Outer line interface is made of rectifier bridge D1～D4.Governor circuit 1 is made of 8051 single-chip microcomputer IC1, and it finishes functions such as time-delay, judgement, logic be synthetic.Sensor circuit 2 is made of SR100A type pyroelectricity double base infrared sensor, amplifier, comparator, and the output of sensor circuit 2 meets the input pin P30 of single-chip microcomputer IC1.Identification circuit 3 is made of the resistance R, the voltage-stabiliser tube DW series circuit that are connected between outer line interface and the ground, and its series connection point meets the input pin P16 of single-chip microcomputer IC1.Dislodging machine circuit 4 is made of relay J, and the adhesive of the contact of this relay is controlled by the output pin P14 of single-chip microcomputer IC1, thereby finishes dislodging machine function.Urgent circuits for triggering 5 by be connected on+K switch 2 between 5V power supply and the ground constitutes, the output of this switch meets the input pin P17 of single-chip microcomputer IC1.Dial-up circuit 6 is by 4066 analog switch IC3, WE9145 transmitting ic IC2 and peripheral circuit thereof, 5 * 4 keyboard K form, its peripheral circuit is by resistance R 1～R22, capacitor C 1～C7, transistor Q1～Q7, diode D1～D5 constitutes, transmitting ic has 13 memory storage functions, has pulse/double-tone function frequently, it and peripheral circuit connect, can send telephone number by telephone transmission line, four inputs of analog switch IC3 meet delivery outlet P10～P13 of single-chip microcomputer IC1, the output A of analog switch, 1,2,3 connect the corresponding keys of keyboard K respectively, the input port 1～4 and 18～22 of the alignment of keyboard K and line sending and receiving integrated circuit (IC) successively 2, the 10 pin output of transmitting ic connects dislodging machine circuit 4 after transistor Q2 and Q1 driving.SR616 solid recording voice plate L and amplifying circuit constitute sound circuit 7, but 16 seconds voice of voice plate recording playback, the control input pin of voice plate L meets the output pin P15 of single-chip microcomputer, and the output of voice plate connects dislodging machine circuit 4 after Q8 amplifies.

Three terminals are arranged on the shell of this device, and one connects transducer, in addition two answer the call exterior lines terminal T and R.

The following describes operation principle:

When human body moves in ranges of sensors, to produce temperature difference between the two motion ground, infrared sensor converts this temperature difference to signal of telecommunication output, after the two-stage amplifying circuit amplifies again with the level ratio of comparison circuit, comparator was exported about 1.5～2V high level when signal was arranged, output low level then when not having signal.

When importing, signal (have the people to walk about) in this scope, the input pin P30 of single-chip microcomputer has detected the high level input, program is just carried out 30 seconds time-delay, if in these 30 seconds, detect three signal inputs, then from output pin P14 output low level, relay J adhesive in the control dislodging machine circuit 4 so just produces off hook signal.After off-hook finishes, single-chip microcomputer is connected A by program control analog switch IC3, there is telephone number in " A " in advance, this telephone number is by pin one 0, resistance R 8, transistor Q2 and Q1, dislodging machine circuit 4, the outer line interface of IC2, be transferred in the telephone line, so the telephone set of this call number just begins ring.After this input pin P16 of single-chip microcomputer has the low level input if detect identification circuit 3, promptly represent the other side's off-hook, so the output pin P15 of single-chip microcomputer produces low level, sound circuit 7 is just worked, after the Q8 amplification, be sent in the telephone transmission line by Q1 again, alarm voice is passed in the predetermined phone by telephone wire.If the other side's unmanned off-hook in 30 seconds is answered the call, the output one of identification circuit 3 is decided to be high level, so the output pin P14 of single-chip microcomputer output high level disconnects relay J, produces on-hook signal.The output pin P14 of single-chip microcomputer output low level more then, make relay work adhesive, the simulation off-hook, connect 1 by program control analog switch IC3 again, the telephone number of storage in " 1 " is sent, as obstructed send out again " 2 ", 3 " ... the telephone number of middle storage has till the connection in four phones that prestore like this.

When breaking out of fire, coal gas, heavy patient's first aid, incident such as antitheft, can press manual emergency K switch 2 and directly send warning.

The utlity model has automatic off-hook on-hook, circulation dialing, the other side's off-hook and judge, send the function of alarm signal and warning language to the phone of connecting, under unmanned occasion, do to report to the police automatically and use, make hidden warning or emergency alarm usefulness under people's occasion having, be applicable to various environment such as family, hotel, bank, shop, hospital.

Claims (5)

1. automatic control voice call burglar alarm, comprise the identification circuit of sensor circuit, the connection signal of shell, outer line interface, sound circuit, the various alarms of detection, to dial-up circuit, the governor circuit of predetermined alarm call dialing, identification circuit is connected on the input of outer line interface, it is characterized in that:

It also comprises the dislodging machine circuit in the output loop that is connected on described outer line interface;

Described governor circuit is a single-chip microcomputer;

Described dial-up circuit is made up of analog switch, keyboard and transmitting ic, the input of described analog switch connects the delivery outlet of described single-chip microcomputer, the output of this analog switch connects described keyboard, described keyboard connects the input port of described transmitting ic, and the output of described transmitting ic connects described dislodging machine circuit after driving;

The output of described sensor circuit connects the input pin of described single-chip microcomputer;

The control input pin of described sound circuit connects the output pin of described single-chip microcomputer, and the output of sound circuit connects described dislodging machine circuit.

2. automatic control voice call burglar alarm as claimed in claim 1 is characterized in that: the identification circuit of described connection signal is made of the resistance, the voltage-stabiliser tube series circuit that are connected between described outer line interface and the ground, and its series connection point connects the input pin of described single-chip microcomputer.

3. automatic control voice call burglar alarm as claimed in claim 1 is characterized in that: described dislodging machine circuit is made of relay, the input pin of the described single-chip microcomputer of adhesive control termination of this relay.

4. automatic control voice call burglar alarm as claimed in claim 1, it is characterized in that: described sound circuit is made up of voice plate and amplifying circuit thereof.

5. as the described automatic control voice call of one of claim 1 to 4 burglar alarm, it is characterized in that: the input pin of described single-chip microcomputer is connected to the manual emergency switch.

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