CN2235687Y - Automatic dial radio paging alarm device - Google Patents

Abstract

The utility model provides an automatic dial radio paging alarm device, which is characterized in that element circuits of a single chip microcomputer circuit 1, an on-hook and off-hook switch 2, photoelectric isolation 3, dialing driven 4, signal processing 5 and input conversion 6 are installed in an outer shell 17; keys of a keyboard 7, a switch 8 for setting the number of bits of telephone numbers, numbers storing 9, defending 10, withdrawing 11, resetting 12 and asking help 13 are installed on the outer shell; a sensor 14 via the input conversion circuit is connected with the single chip computer; the dialing driven circuit is connected between the single chip computer and the photoelectric isolation circuit; the output of the photoelectric isolation circuit is connected with the input of the signal processing circuit in parallel, and then is connected with the telephone via the on-hook and off-hook switch circuit; the output of the signal processing circuit is connected with the single chip computer. The utility model has the functions of automatic detection, code sending and number storing, and has no need of making changes for the telephone. The utility model is suitable to be used in families and important places such as offices, storehouses, etc.

Description

Automatic dialling wireless calling alarm device

The utility model relates to a kind of warning device by microcomputerized control, belongs to the security device field.

Along with the raising of people's living standard and the improvement of living conditions, the home security problem obtains paying attention to.Though anti-theft devices such as antitheft door, electronic lock, sonic alarm have certain effect, just passive strick precaution as owner outside the time, can't know whether illegal chamber entrant is arranged in the family.Have a kind of telephone alarm warning message can be transferred to a preassigned telephone set and go, but the number of this telephone set is cured in the program storage when product is made in advance, the user can't change, so its scope of application is subjected to certain restriction.

The purpose of this utility model provides a kind of alarm, and it utilizes existing communication apparatus, can send warning by telephone wire from trend owner's radio pager according to the signal that transducer obtains.

The purpose of this utility model is achieved in that automatic dialling wireless calling alarm device has shell, and single chip microcomputer circuit and dislodging machine switch, dialing driving, photoelectricity isolation, signal processing, all element circuits of input conversion are housed in the shell.Wherein:

The single chip microcomputer circuit is connected to the keyboard and the number of depositing, each key of deploying troops on garrison duty, withdraw a garrison, reset;

Dislodging machine switch series is connected between outside line terminal and the signal input terminal;

The input of dialing driver element connects an input and output pin of single-chip microcomputer, and the output of dialing driver element connects the input of photoelectricity isolated location;

The output of photoelectricity isolated location connects signal input terminal;

The input of signal processing unit connects signal input terminal, and the output of signal processing unit connects an input and output pin of single-chip microcomputer;

The output of input converter unit connects an input and output pin of single-chip microcomputer, and the input of input converter unit connects the sensor signal terminal.

The output of transducer is delivered to the port of single-chip microcomputer through importing converter unit, after single-chip microcomputer is received, takes out the call sign indicating number of the beep-pager of storage in advance automatically from its memory, sends to outside line by the dialing driver circuit, and the automatic paging of realization beep-pager is reported to the police.

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

Fig. 1 is a circuit block diagram of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model.

Be equipped with in the shell 17 of the present utility model that single chip microcomputer circuit 1 shown in Figure 1 and dislodging machine switch 2, photoelectricity isolate 3, dialing drives 4, signal processing 5, input conversion 6 each element circuit, the keyboard 7 that joins with single chip microcomputer circuit 1 be housed on the shell, put telephone number figure place switch 8 and the number of depositing 9, deploy troops on garrison duty 10, withdraw a garrison 11, reset 12, emergency 13 each key.

The output of transducer 14 connects an input and output pin of single-chip microcomputer through input conversion 6.The input of dialing driving 4 connects the input and output pin of single-chip microcomputer, output connects photoelectricity and isolates 3 input, the output of photoelectricity isolation 3 and the input of signal processing 5 also connect, and join through dislodging machine switch 2 and outside line 15 then, and the output of signal processing 5 connects the input and output pin of single-chip microcomputer.Dislodging machine switch 2 can switch to outside line in telephone set 16 or this device.

Referring to Fig. 2: 80C31 single-chip microcomputer IC5,74HC374 address latch IC7 and 27C32 memory under program IC8 connection have routinely constituted the minimum system of single-chip microcomputer.

Keyboard is by 74HC164 and line output serial shift register IC6 and line up 0 of 2 * 8 arrays～90 button and form, the line of button connects P34 and the P35 pin of IC5, the alignment of button connects the parallel output terminal of IC6,1,2 pin of IC6 also connect the RXD pin of IC5 together, and 8 pin of IC6 connect the TXD pin of IC5.

Put telephone number figure place switch and constitute by four way switch BK, an end ground connection of every bit switch, the other end connects P24～P27 pin of IC5 respectively.

The number of depositing key 9, the key 10 of deploying troops on garrison duty, the key 11 of withdrawing a garrison, the reset key 12 that is made of switch connects P16, P11, P14, the RST pin of IC5 respectively, and the emergency switch 13 among Fig. 1 is connected between emergency switch terminal A1 and the A2, and the P13 pin of terminal A2 and IC5 joins.

Dislodging machine switch element is connect the transistor T 3 of P12 pin of single-chip microcomputer by base stage and the relay J that is connected on this transistor collector is formed.The fixed contact of the relay tip J1 exterior lines terminal L1 that answers the call, the armature contact machine terminal TL1 that answers the call, another armature contact meets signal input terminal P.When relay gets when electric, it switches to outside line in this device, during relay electric-loss, again outside line is invested telephone set.

The photoelectricity isolated location is made of rectifier bridge T, 4N25 optical coupler IC3, transistor T 1 and T2.The input of rectifier bridge T meets signal input terminal P and outside line terminal L2, and T1 and T2 form the two-stage electronic switch, and are serially connected in the output loop of rectifier bridge, and the unlatching of this electronic switch is by the efferent duct control of optical coupler IC3.When T1, T2 conducting, the output of rectifier bridge constitutes the loop, so produce about 37mA electric current on outside line, keeps about 50 volts voltage when ending on the outside line, so just can drive the switch of Local Exchange.Optical coupler makes the complete and drive circuit isolation of outside line.

The dialing driver element is made up of 74LS05 inverter ic 4, light-emitting diode D7 and loud speaker Y.P36, P33, the P15 pin of three input pin 11,3,1 tap IC5 of IC4, its output pin 8 driven for emitting lights diode D7, output pin 6 drives loud speaker Y by transistor T 4, and output pin 2 drives the input diode of optical coupler IC3.The function of this unit provides dialing driving and sound prompting.

Signal processing unit is made of isolating transformer B, LM358 amplifier IC1, LM567 audio phase locking ring decoder IC2.The former edge joint signal input terminal P of transformer and outside line terminal L2, secondary output send IC1 to amplify, the effect of isolating transformer is to make not to be total to place and common-battery source point between the circuit of outside line and back, IC1 is used for compensating, adjust the loss of signal on the outside line, the input pin 3 of IC2 is delivered in the output of its 1 pin through potentiometer W1, IC2 is used for handling dialing tone, ring-back tone, busy tone etc., and its output pin 8 connects the P17 pin of single-chip microcomputer IC5.

The input converter unit is made of transistor T 5, and the collector electrode of T5 connects the P10 pin of IC5, and the sub-T1 of sensor terminals, T2 connect the base stage input circuit of T5.

Narrate operation principle below:

After this device powered on, single-chip microcomputer was just inquired about the number of depositing key 9, the key 10 of deploying troops on garrison duty.After the number of depositing key is pressed, just can be by the radio pager number of keyboard to internal memory input owner, its figure place is by the software dictates among the memory under program IC8, also can set by switch BK, after the number of depositing finished, the P36 human hair combing waste of single-chip microcomputer went out low level, and 8 pin of IC4 are output low level just, make the dialing driver element light luminous tube D7, D7 extinguishes after the continuity several seconds.If the number of depositing is incorrect, then to repeat the above-mentioned number of depositing process then by a reset key 12.After pressing the key 10 of deploying troops on garrison duty, promptly from low level of its P33 pin output, 6 pin of IC4 are output low level just for single-chip microcomputer, makes dialing drive unit drives loud speaker Y send the sound, and after the lasting several seconds, this device just enters the state of alert.

Under the state of alert, if the sensor that is connected between terminal T1, the T2 arrives abnormal signal (as movement of objects, temperature rising etc., this depends on the kind of used transducer), this signal just enters the P10 pin of single-chip microcomputer through the input converter unit, just can send warning after the single-chip microcomputer differentiation is determined.Alarm procedure is: single-chip microcomputer is from its P12 pin output low level, relay J in the dislodging machine switch element is got, after the contact J1 action of relay, binding post L1 and TL1 are disconnected, and be communicated with terminals P, promptly outside line is switched to this device from telephone set, finish the off-hook action simultaneously.After this single-chip microcomputer passes through the output of IC2 in its P17 pin detection signal processing unit again, judged whether dialing tone, after detecting for 4 seconds, if then on-hook of no dial tone, postpone after 20 seconds off-hook again, detect dialing tone again, after truly having dialing tone, single-chip microcomputer just takes out telephone number from internal memory, go out high level by its P15 human hair combing waste, make the 2 pin output low levels of IC4, thus with telephone number through the dialing driver element → photoelectricity isolated location → dislodging machine switch element, push on the outside line.Single-chip microcomputer installs on-hook by dislodging machine switch element with this after judging that by signal processing unit the other side has ring-back tone and off-hook again.

Dial outward three times during each the warning, if abnormal signal disappears (leaving the strick precaution zone of transducer etc. as illegal chamber entrant), then this device turns back to the state of alert again, if still have abnormal signal then to continue to report to the police.The owner who holds mobile telephone receives above-mentioned subsequenct call clocklike, and is the telephone number in the family, and just knowing has abnormal conditions in the family, just can take adequate measures.

Emergency switch 13 be for the old man in the family, child in case of emergency to the person that holds beeper emergency usefulness, the operation principle after this switch is pressed and process are to above-mentioned similar.

After owner enters house, press the key 11 of withdrawing a garrison and this device can be withdrawn a garrison.

This device has automatic detection, automatic signaling and by user's function of the number of depositing voluntarily, and be adapted to the beep-pager of jack per station figure place, its wiring is simple, need not change telephone set, do not influence telephone set and normally use, be applicable to important places such as family and office, warehouse.

Claims (3)

1. automatic dialling wireless calling alarm device has shell and single chip microcomputer circuit, it is characterized in that:

Its set out in addition machine switch, dialing driving, photoelectricity isolation, signal processing, all element circuit of input conversion;

Said single chip microcomputer circuit is connected to the keyboard and the number of depositing, each key of deploying troops on garrison duty, withdraw a garrison, reset;

Said dislodging machine switch series is connected between outside line terminal and the signal input terminal;

The input of said dialing driver element connects an input and output pin of single-chip microcomputer, and the output of dialing driver element connects the input of photoelectricity isolated location;

The output of said photoelectricity isolated location connects signal input terminal;

The input of said signal processing unit connects signal input terminal, and the output of signal processing unit connects an input and output pin of single-chip microcomputer;

The output of said input converter unit connects an input and output pin of single-chip microcomputer, and the input of input converter unit connects the sensor signal terminal.

2. automatic dialling wireless calling alarm device according to claim 1 is characterized in that:

The relay that said dislodging machine switch element connects the transistor of an input and output pin of single-chip microcomputer by base stage and is connected on this transistor output is formed, the fixed contact of this relay exterior lines terminal of answering the call, two armature contact tap telephone set terminals of relay and signal input part;

Said photoelectricity isolated location is made up of rectifier bridge, optical coupler and electronic switch, and the input of said rectifier bridge connects signal input part, and said electronic switch is serially connected in the output loop of rectifier bridge, and the unlatching of said electronic switch is controlled in the output of said optical coupler;

Said dialing driver element is made up of inverter, light-emitting diode and loud speaker, three input and output pin of three input tap single-chip microcomputers of said inverter, its output drives the optical coupler in said light-emitting diode, loud speaker and the photoelectricity isolated location respectively;

Said signal processing unit is made up of isolating transformer, amplifier and audio phase locking ring decoder, the former edge joint signal input terminal of said isolating transformer, secondary connects the input of said amplifier, the output of this amplifier connects the input of said audio phase locking ring decoder, and the output of this audio phase locking ring decoder connects an input and output pin of single-chip microcomputer;

Said input converter unit is a transistor, and this transistorized output connects an input and output pin of single-chip microcomputer.

3. automatic dialling wireless calling alarm device according to claim 1 is characterized in that the input and output pin of single-chip microcomputer also is connected to the switch that is used to be provided with the telephone number figure place.

Images