CN2394387Y - Alarm for preventing pager from stealing - Google Patents

Abstract

The utility model relates to an anti-theft alarm for a paper. The utility model comprises a trigger circuit, an oscillating circuit, a control circuit, a dialing circuit, an acoustic circuit and a telephone line disconnection detection circuit. Two pulse distributors and a D trigger form a main body of the control circuit. A dialing integrated circuit adopts a chip which can store two sets of 32 numbers. The anti-theft alarm for a paper can automatically alarm to a numeric pager, a Chinese pager, a supervisory control computer and a telephone capable of displaying calling numbers. The number of alarming objects is at most two, and the alarming message is represented by codes. Because the bit number of the codes is more, accurate and rich alarming message can be expressed, and an alarm system with large capacity can be formed.

Description

The paging burglar alarm

The utility model belongs to the alarm technical field.

With the more approaching product of paging burglar alarm be the dial telephone alarm, the course of work of this alarm is: after detecting triggering signal, alarm is dialed certain telephone number automatically, emit one section recording of reporting to the police then, the details of relevant operation principle can be consulted " electronic anti-theft alarm circuit complete works " the 290 page, jpresent writer's Chen Guohua, the Electronic Industry Press publishes, in August, 1997 front page.

The purpose of this utility model is a kind of autoalarm of design, it can pass to warning message on the beep-pager automatically, warning message appears on the beep-pager with the form of code, the telephone number that shows on this code and the beep-pager is different, code is imported alarm in advance by the user, so he knows the implication of code.

Design of the present utility model is as follows:

Alarm circuit is made up of following each element circuit, triggers and remove the control circuit of deploying troops on garrison duty, and is called for short circuits for triggering, oscillating circuit, control circuit, dial-up circuit, acoustics circuit, telephone wire break detection circuit.These circuit are formed the complete warning system of a cover, and the entire circuit block diagram as shown in Figure 1.

Lock-controlled switch and the probe composition circuits for triggering that are cascaded, a termination power positive pole of circuit, other end order is to the SCR control utmost point.Lock-controlled switch is broken as the state of withdrawing a garrison, and closure is the state of deploying troops on garrison duty, and under the state of deploying troops on garrison duty, when triggering signal was arranged, series circuit was communicated with, and the SCR control utmost point adds positive voltage, the controllable silicon conducting, and oscillating circuit energising work produces pulse signal.

Control circuit is by analog switching circuit, pulsqe distributor, and inverter, d type flip flop, monostable flipflop and relay are formed.Its control alarm finish the following course of work: carry machine-→ dialing (first number)-→ on-hook-→ carry machine-→ dialing (second number)-→ on-hook.The operation principle of control circuit is such, the pulse signal input pulse distributor that oscillating circuit produces, pulsqe distributor is assigned to each output in order with pulse signal, certain output is linked the input of monostable flipflop, monostable flipflop is subjected to trigger output signal, this signal amplifies through triode, goes to drive the relay adhesive, finishes and carries motor-driven work.The temporarily steady time of monostable flipflop is carried the time of machine to on-hook just.Besides the realization of dial action, the dial peer that singly touches of the input/output terminal of analog switching ic and dial-up circuit links to each other, and the pulsqe distributor output connects the control end of analog switching ic, during the control end high potential, the analog switch conducting has also just realized dial action.This circuit has two pulsqe distributors, two monostable circuit unit, and two analog switch units are finished the placement process of two numbers respectively.D type flip flop plays a part to take over from the past and set a new course for the future, and it guarantees circuit group first number earlier, and second number dialled in the back.Inverter is used for the zero clearing of paired pulses distributor.

The core of dial-up circuit is the dialing integrated circuit, and it can deposit two 32 item sign indicating numbers, and one exists in the storage memory, and in an existence redialed, this circuit can be dialled the reason of long figure place code and select special dialing integrated circuit exactly for use.The storage memory figure place of general dialing integrated circuit is 16.

The telephone wire break detection circuit is used to find telephone wire broken string situation, in case broken string, field alert just rings, this function may design the destruction of telephone wire at the thief, the testing circuit main element is inverter and a NPN type three-reporting pipe, the inverter input links to each other with telephone wire, and output links to each other with transistor base.When telephone wire was not disconnected, the inverter input was a high potential, and output then is an electronegative potential, and triode ends, when telephone wire breaks, and inverter input step-down current potential, output uprises current potential, the triode conducting.Transistor emitter ground connection, collector electrode connect the ground end of acoustics circuit, thus triode by or conducting determined the acoustics circuit work of can switching on.

The utility model is compared with prior art has several significant advantages.

1, warning full process automatization detects alert from probe and appears at the inartificial intervention of beep-pager to code.This paging burglar alarm is reported to the police by the automatic paging platform, the reliability height.Existing telephone call has many uncertain conditions, and for example: the someone answers uncertainly, and the people who receives calls is uncertain, and it is uncertain whether the line is busy.If offer artificial paging centers, whether the operator who works with paging centres gives biography uncertain after hearing out recording.

2, number exists the form in the dialing integrated circuit to be:

Platform number+assistant-searching catchword+time-delay figure place+code

The automatic paging platform can only receive the paging number of particular number of bits, surpasses specific figure place, no longer receives.Have only after prompt tone just to receive dual-tone dialing, why Here it is inserts the time-delay position between assistant-searching catchword and code.Each time-delay position time-delay 3.6 seconds, it is just much of that in general to insert three time-delay positions, and the input time delay position only need be by time-out/redial key.

Existing telephone alarm can only be deposited 16 item sign indicating numbers, uses it to dial the automatic paging platform, only leaves code for for surplus 2～3.Also some telephone alarm utilizes the redial key dialing alarm, though the redial key storage bit number is many, can only deposit a number.The utility model can be stored two numbers, and each all can reach 32, and this has guaranteed that sufficient code figure place goes to pass on information specific.For example on security personnel's the beep-pager if the code of " 23 04 12 ", he just knows that No. 12 resident's familys in Unit 4, No. 23 building have the burglar to enter at once.

3, the state of deploying troops on garrison duty and withdraw a garrison of this paging burglar alarm is locked a door and is deployed troops on garrison duty by the key control of locking a door, and unblanks to withdraw a garrison, this lock control mode is in lock a switch to be installed, this switch is called lock-controlled switch, and this design is convenient and reasonable, also can be owing to human factor produces wrong report.Existing manual time-delay mode and remote control mode were both inconvenient, also had the possibility of very high wrong report.

Manually time-delay is exactly the switch of withdrawing a garrison that will click in the time about 10 seconds after owner enters house on the machine, otherwise will report to the police; Before going out, click the switch of deploying troops on garrison duty, will withdraw from a room in the time about 10 seconds, otherwise will report to the police.Time-delay makes the time that the thief has releasing to deploy troops on garrison duty or destroy alarm on the other hand.

Remote control mode is exactly to deploy troops on garrison duty by remote controller after owner gos out, and withdraws a garrison by remote controller before entering, and forgets by reporting by mistake.Between remote controller and the alarm cryptographic relationship is arranged, can be compared to and open different locks with different keys, just be difficult to join again if remote controller damages or loses.Remote controller cost height in addition, if alarm is joined a plurality of remote controllers to satisfy multiperson household's situation when dispatching from the factory, then the cost of alarm just significantly increases.

4, existing similar products do not have the line interrupted warning function, in case telephone wire is cut off by the thief, alarm is just ineffective, and the telephone wire break alarm function of this paging burglar alarm is very practical.

5, existing approximate product device does not have the onsite alarming function, and the utility model is come in the increase of onsite alarming function, makes product function more perfect.

Provide one below and realize example of the present utility model, circuit diagram is referring to Fig. 2, and details are as follows.

The dial-up circuit part is with integrated circuit (IC) 1 this core, and the model of IC1 is W91530, W91531, perhaps W91532.The characteristics of this dialing integrated circuit are to store two 32 item sign indicating numbers.L1, the L2 line of answering the call, R1 are insurance resistance, and the protection complete machine is not broken by thunder and lightning, and B1 is a bridge rectifier, guarantees that output has fixing polarity.SW2 carries the machine switch.Hook state Q1, Q2 and Q3 end, and Q2 and Q3 base stage add positive voltage and conducting when carrying machine; The collector electrode step-down current potential of Q2 makes also conducting of Q1 after the conducting; The Q3 conducting, collector electrode step-down current potential, 10 pin of the IC1 that is attached thereto are the step-down current potential also, and whether 10 pin current potentials decision IC1 works, and 10 pin electronegative potentials are carried the machine state exactly, and chip is in common operating state.R5, R6, R7, R8, R9 are divider resistances, R4 is a current-limiting resistance, and diode D1 plays buffer action, and D5 and D6 are voltage stabilizing didoes, guarantees that IC1 has suitable operating voltage, C17 is an energy storage capacitor, and when machine broke away from telephone wire, capacitor discharge was kept the number of storing among the IC1 and do not lost.C1 and R10 form integrating circuit, and the 14 pin voltages of IC1 can not suddenly change during on-hook, and R10 is a current-limiting resistance, and 14 pin are supply pins of IC1.R3 plays metering function, and during on-hook, through the R3 current limliting, several microamperes electric current is powered to IC1, and the memory contents of IC1 just can not lost.The double-audio signal of 12 pin output is transported on the telephone wire through the Q4 amplification, and R11, R12 are divider resistances, guarantees that the dc point of Q4 is suitable, and double-audio signal amplifies through C4 input Q4.R13 is a load resistance, and the telephone wire load was suitable when it guaranteed to carry machine.X1 is a ceramic resonator, and C2, C3 and X1 constitute capacitance connecting three point type oscillator, and D2 is an isolating diode.

Circuits for triggering are made up of elements such as lock-controlled switch SW4, probe S1 to Sn and controllable silicon Q10, the in succession power end of oscillating circuit of the negative electrode of Q10, when triggering signal is arranged, the Q10 control utmost point is coupled with voltage, the Q10 conducting, oscillating circuit energising work, R26 is a current-limiting resistance, R27 is a load resistance, and assurance controllable silicon conducting electric current reaches to be kept more than the electric current.The effect of capacitor C 11 is to eliminate interference signal.SW1 is a reset switch, resets after being used for reporting to the police.

IC2 is 555 integrated circuits, and it is linked to be the oscillator form, and 5 pin are by capacitor C 5 ground connection, cycle of oscillation T=0.693 * (R15+2R14) * C6,3 pin outputting oscillation signals.

The control circuit more complicated also is a technological core of the present utility model, and it uses following several integrated circuit, IC3 and IC4 are pulsqe distributor CD4017, and IC5 is 556, and IC6 is inverter CD40106, IC7 is analog switch CD4066, and IC8 is d type flip flop CD4013.IC3 successively is assigned to 7 pin and 10 pin with pulse, and 7 pin output pulse-triggered is carried motor-driven work, and 10 pin output pulse-triggered is dialled first number.A unit and the B unit of IC5 all are linked to be the monostable form, the 7 pin output pulse of IC3 is amplified through Q5, the A unit that triggers IC5 enters temporary stable state, after Q7 amplifies, drive relay K 1 adhesive by the high level of 5 pin of IC5 output, finish the machine of carrying, stable state finishes temporarily, 5 pin recover low level, and relay discharges, and finishes on-hook.The course of work of IC4 is the same with IC3, IC4, and the B unit of Q6, IC5 and Q8 finish second dialing procedure together.R16, R17, R20 and R21 are divider resistances; R18 and R19 are current-limiting resistances; C7 and C8 are the ground capacities of IC5; temporarily steady time T a=1, the 1 * R22 * C9 of IC5A unit; temporarily steady time T b=1, the 1 * R23 * C10 of IC5B unit; D3 is the protection diode, eliminates the overshoot voltage on on-hook moment Q7 and the Q8 collector electrode.IC7 contains four groups of analog switches, and the C of IC7 group is communicated with the redialing function end of IC1, and what the A group of IC7 was communicated with IC1 singly touches the dial feature end, and the D group of IC7 is the switch of pulse input IC3, and the B group of IC7 is the switch of pulse input IC4.12 pin of IC3,6 pin of 14 pin and IC7 link to each other and have guaranteed that dialing back IC3 stops dispense-pulse and interruption pulse input IC3 for the first time.12 pin of IC4 link to each other with 14, have guaranteed that dialing back IC4 stops dispense-pulse for the second time, and the B unit switch of IC7 disconnects.The D unit of inverter ic 6 is used for control circuit, and input 9 pin of IC6 link to each other with the Q10 negative electrode, and before the Q10 conducting, 8 pin of IC6 are high potentials, and this high potential makes the IC3 zero clearing, the IC4 zero clearing, and after the Q10 conducting, the 8 pin step-down level of IC6, IC3 can work.After first number had been dialled, the release movement of relay was to 3 pin of IC8A unit input rising pulse, and IC8 is the d type flip flop that rising edge triggers, the 2 pin step-down level of IC8 like this, and IC4 can work, and 1 pin of IC8 uprises level, the B cell conduction of IC7.The effect of IC8 is to take over from the past and set a new course for the future thus, and IC4 just started working after it guaranteed on-hook for the first time.Like this, this machine can sequentially be dialed two paging numbers, reports to the police for two people.

Telephone wire break detection circuit A, B and the C unit of IC6.Voltage stabilizing didoe D7 makes the voltage of 1,3 and 5 pin that are added in IC6 under the normal condition unlikely too high, and R2 and R24 are divider resistances, and Q9 is the triode that is operated on off state, and C13 is used to absorb the voltage fluctuation of telephone ring signal in the input generation of IC6.Telephone wire one is disconnected, and output 2,4 and 6 pin of IC6 uprise current potential, make the Q9 conducting, and the acoustics circuit earth terminal connects ground, starts working.

Q11 is a controllable silicon, when SW3 is closed, also has on-the-spot audible alarm in calling alarm, 25 metering functions of resistance R, and capacitor C 12 is eliminated interference signal.

The bottom of Fig. 2 is a power circuit, and P1 is an outlet, and F1 is a fuse, C14, C15 and 16 are filter capacitors, 12 volts of direct currents tap into machine through P1, and directly to the acoustics circuit power supply, 6 volts of direct currents after the step-down are powered to other parts, U1 is a circuit of three-terminal voltage-stabilizing integrated, model is 7806, and R20 is a current-limiting resistance, charges to storage battery B after the R20 current limliting, during power failure, the electric current of storage battery is powered to machine automatically through diode D4.

J1 and J2 are connectors.

Button E on the panel is the emergency alarm button, is indoor occupant rescue alarm design, trigger E key, and controllable silicon Q10 is with regard to conducting, and whole alarm is started working.

At last, illustrate that number deposits the method for machine in.

First number: carry machine (SW2 closure)-→ by the S key-→ Enter Number-→ press R key (for several times)-→ input code-→ press the M key-→ on-hook (SW2 disconnection).

Second number: carry machine-→ Enter Number-→ press R key (for several times)-→ input code-→ on-hook.

Annotate: by time-delay position of a R key input.

Claims (2)

1. paging burglar alarm, it is by circuits for triggering, oscillating circuit, control circuit, dial-up circuit, compositions such as acoustics circuit and telephone wire break detection circuit, it is characterized in that: input 1 pin of bidirectional analog switch I C7,3 pin connect 18 pin of dialing IC1, input 4 pin of IC7 connect 4 pin of IC1, input 2 pin of IC7 connect the positive pole of diode D2, input 8 pin of IC7,11 pin connect output 3 pin of oscillating circuit IC2, output 9 pin of IC7 connect input end of clock 13 pin of pulsqe distributor IC3, output 10 pin of IC7 connect input end of clock 13 pin of pulsqe distributor IC4, IC3 is the identical pulsqe distributor of model with IC4, switch control end 5 pin of IC7,13 pin connect pulse output end 10 pin of IC3 and pulse output end 10 pin of IC4 respectively, switch control end 6 pin of IC7 connect 12 pin and 14 pin of IC3,12 pin of IC3 are carry pulse outputs, 14 pin of IC3 are to forbid end, switch control end 12 pin of IC7 connect true form output 1 pin of d type flip flop IC8, pulse output end 7 pin of IC3 connect the base stage of triode Q5 through current-limiting resistance R16, pulse output end 7 pin of IC4 connect the base stage of triode Q6 through current-limiting resistance R17, data input pin 5 pin of IC8 connect 12 pin and 14 pin of IC4, input end of clock 3 pin of IC8 connect the collector electrode of triode Q7 and Q8, radix-minus-one complement output 2 pin of IC8 connect reset terminal 15 pin of IC4, the negative electrode of one-way SCR Q10 connects input 9 pin of inverter ic 6, and output 8 pin of IC6 connect reset terminal 15 pin of IC3 and directreset terminal 4 pin of IC8.

2. paging burglar alarm according to claim 1 is characterized in that: dialing IC1 adopts W91530, W91531 or W91532.

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