CN2131150Y

CN2131150Y - Connecting-netted anti-theft alarm

Info

Publication number: CN2131150Y
Application number: CN 92238632
Authority: CN
Inventors: 杨永杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-30
Filing date: 1992-10-30
Publication date: 1993-04-28
Anticipated expiration: 2002-10-30

Abstract

The utility model belongs to the technical field of anti-theft alarm, wherein, the connecting-netted anti-theft alarm is composed of such 9 sections as a network signal handler, an inner and an outer alarm signal memorizers, a cipher code controller, etc. The utility model connects all the alarm units into a net. When a certain part of the net alarms, the whole net alarms instantly. Each alarm unit on the net uses passwords to reject strangers from masters. The utility model is of high alarm reliability with full functions against spoiling, and can work continuously day and night. The connecting-netted anti-theft alarm is an ideal burglar alarm for various national departments in charge of confidential or important work.

Description

Connecting-netted anti-theft alarm

The utility model belongs to the burglar alarm technical field.

In the prior art, most burglar alarms all are isolateds, in case alert is arranged, if neighbouring unmanned, equal illusory; Existing network alarm device is user and total interconnect plane, and each user only establishes detector, in case the burglar touches detector, exchange is just reported to the police, when passing in and out the room door owing to owner, also can touch detector, and then trigger and report to the police, be unnecessary and at this moment report to the police, so exchange must be shut down, by the time after owner leaves away, exchange is worked again, because exchange can not continuous working, just occurs failing to report unavoidably; Existing warning device does not have tamper-proof function, in case circuit is cut off or alarm is pounded and prized, just loses the warning effect yet; The probe, the particularly probe that constitutes by magnetic switch of existing alarm, not antimagnetic, easily go to pot, thereby lose warning function.

First purpose of the present utility model is that a kind of networking theft-proof alarm will be provided, as long as a side has alert, all users on the networking line just report to the police mutually, and the user can know orientation, alert place at once; Second purpose of the present utility model is to realize the continuous working of alarm, and in other words, owner can turn off the internal alarm circuit for fear of oneself turnover room door and trigger warning, but when not influencing the external alarm signal input and the warning that triggers; The 3rd purpose of the present utility model is to improve the tamper-proof function of alarm, no matter be that circuit is cut off, or alarm pounded and prized, and can both trigger warning at once; Last purpose of the present utility model provides a kind of new construction of magnetic switch, and it has tamper-proof jamming-proof ability reliably.

The purpose of this utility model is to realize with following mode: this alarm by networking signal processor, external alarm signal storer, internal alarm signal storage, reminiscences and warning indicating device, alarm sound device, detector, Crypto Control Unit, destruction prevention device, power supply and the under-voltage indicating device of battery totally 9 parts form.The networking of reporting to the police realizes that by the networking signal processor the next alerting signal of A direction is transmitted to the B direction by it, and the alerting signal that the B direction is come is then transmitted to the A direction by it, thereby realizes networking; External alarm signal also enters the external alarm signal storer by it, enters the alarm sound device again, realizes the warning to external signal; Produce the internal alarm signal from detector, this signal is introduced into the internal alarm signal storage, enters networking signal processor and alarm sound device thereafter more respectively,, realizes self reporting to the police by the latter to the open air warning by the former; Enter the signal of memory, external memory reservoir, be controlled by Crypto Control Unit, if receive cipher instruction, alerting signal will be by short-term or long-term the termination, if do not receive that cipher instruction, alerting signal will enter acoustics circuit and report to the police; This alarm is provided with special tamper-proof circuit, in case circuit is cut off, perhaps alarm is pounded and prized, and circuit can pass in the net signal and acoustics circuit at once, reports to the police simultaneously in realization outside and inside; The structure of magnet and the discrete setting of tongue tube in the utility model magnetic switch of changing over and they are combined as a whole.Thereby improve the reliability and the security of probe greatly.

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1. the utility model circuit block diagram

Fig. 2. networking signal processor and destruction prevention device circuit diagram

Fig. 3. external alarm signal memory circuitry figure

Fig. 4. internal alarm signal storage circuit diagram

Fig. 5. reminiscences and warning indicating device circuit diagram

Fig. 6. alarm sound device circuit figure

Fig. 7. detector circuit figure

Fig. 8. the magnetic switch structural drawing

Fig. 9. the Crypto Control Unit circuit diagram

Figure 10. power supply and battery are under-voltage indicating device circuit diagram

Among the figure: user, the B. that A. is positioned at the A direction is positioned at the user of B direction, 1. networking signal processor, 2. external alarm signal storer, 3. internal alarm signal storage, 4. reminiscences and warning indicating device, 5. alarm sound device, 6. detector, 7. Crypto Control Unit, 8. destruction prevention device, 9. power supply and the under-voltage indicating device of battery, 10. magnet, 11. tongue tubes, 12. iron plates, 13. shells, R. resistance, C. electric capacity, VD. diode, V. triode, Ic ₁And Ic ₄. four high guaily unit LM324, Ic ₃. time base circuit MC7556(storer), Ic ₇2-10 system counter CD4017(time schedule controller), F. Sheffer stroke gate (phase inverter), K. switch, T. probe, AN. button, CK. plugs and sockets, GB. battery.

Circuit block diagram shown in Figure 1, by networking signal processor 1, external alarm signal storer 2, internal alarm signal storage 3, reminiscences and warning indicating device 4, alarm sound device 5, detector 6, Crypto Control Unit 7, destruction prevention device 8, power supply and battery are under-voltage, and indicating device 9 is formed, it is characterized in that: by A, the networking line that the B direction is come links with the networking signal processor, networking signal processor and external alarm signal storer link, external alarm signal storer and alarm sound device link, detector and internal alarm signal storage link, the internal alarm signal storage respectively with the networking signal processor, reminiscences and warning indicating device, the alarm sound device links, destruction prevention device links with networking signal processor and alarm sound device, Crypto Control Unit with in, outer alerting signal storer links, and the under-voltage indicating device of power supply and battery and other 1-8 each several parts link.

Networking signal processor and destruction prevention device shown in Figure 2 are by four high guaily unit Ic ₁, anti-jamming circuit, indicating circuit, buffer circuit, phase inverter F ₂And tamper-proof circuit is formed.The alerting signal of coming from the A direction enters this processor by the networking line, via R _1-5And C _1-4The anti-jamming circuit of being formed enters Ic _1-212 pin, again from Ic _1-214 pin come out to be divided into three the tunnel: lead up to VD in the buffer circuit _1-5Arrival is by R _2-2, C _2-1, VD _2-2The anti-jamming circuit of being formed enters the external alarm signal storer; Two the tunnel enter by VD _1-2, R _1-8The alerting signal indicating circuit of being formed makes light emitting diode VD _1-2Bright, tell owner A that direction has the police; Three the tunnel arrive Sheffer stroke gate F ₂1 pin, anti-phase back signal is from F ₂11 pin come out, again by R _1-9Be transported on the networking line of B direction.In like manner, the alerting signal from the B direction is come arrives Ic earlier _1-110 pin, again from Ic _1-18 pin come out, and are divided into three the tunnel: the one tunnel through isolating diode VD _1-6And R _2-2, C _2-1Enter the external signal storer; Two the tunnel will make another light emitting diode VD _1-1Bright, tell owner B that direction has the police; Three the tunnel then from phase inverter F ₂10 pin come out through R _1-4Be transported on the networking line of A direction.

The internal alarm signal is the R of signal storage internally _1-11Come out, arrive F ₂5 pin and 2 pin, through F ₂After anti-phase, by R _1-4And R _1-9Outwards transmission.

External alarm signal storer shown in Figure 3 is by time base circuit Ic _3-1, Sheffer stroke gate F ₅, F ₇, anti-jamming circuit, capacitance multiplication charging circuit form.External alarm signal is from the R of networking signal processor _2-2Enter the Ic of this storer _3-18 pin, Ic _3-1Be the part of time base circuit MC7556, external alarm signal is stored in this.Storer is controlled by Crypto Control Unit, and when not receiving cipher instruction, when promptly not pressing cryptographic key or having pushed the wrong key, alerting signal will be respectively from Ic _3-19 pin and 13 pin output, the signal that comes out from 9 pin enters Sheffer stroke gate F ₇, after anti-phase, enter the alarm sound device, it is reported to the police, the signal that comes out from 13 pin then enters by R _2-4, R _2-5, C _2-3, VD _2-1, V _2-1The capacitance multiplication charging circuit of being formed (it is a kind of of delay circuit), at this moment power supply passes through R _2-4, VD _2-1To C _2-3C is worked as in charging _2-3Current potential rise to three of supply voltage/two o'clock, Ic _3-112 pin be triggered, make Ic ₃-19 pin are returned to former current potential, and alerting signal stops, and this process is the automatic termination procedure of alerting signal, lasts about five minutes therebetween; When receiving cipher instruction, when promptly owner pressed cryptographic key, cipher instruction will be from F ₅The input of 12 pin, 13 pin, anti-phase after, through by R _2-3And C _2-2The anti-jamming circuit of being formed enters into Ic _3-110 pin, make Ic _3-19 pin and 13 pin all be returned to former current potential, at this moment alerting signal is terminated, this process is the artificial termination procedure of alerting signal.

Internal alarm signal storage shown in Figure 4 is by time base circuit Ic _3-2, delay circuit, capacitance multiplication charging circuit, anti-jamming circuit, Sheffer stroke gate F ₅Form.The internal alarm signal is from the R of detector _3-10Enter Ic _3-26 pin, Ic _3-2Be the part of time base circuit MC7556, the internal alarm signal is stored in this, and storer is controlled by Crypto Control Unit.No matter be owner or stranger, as long as one open the door and will touch detector, just have the internal alarm signal, alerting signal is respectively from Ic _3-25 pin and 1 pin output, the signal from 5 pin come out is divided into two-way, the one tunnel through VD _3-1Enter reminiscences and warning indicating device, remind owner, alarm is started working; Another road process is by R _3-13, C _3-4The delay circuit of forming, after about 10 seconds, F ₅Start working, this 10 second time is to make owner if having time by cryptographic key, and its cipher instruction is from

F

₅8,9 pin enter, anti-phase after, again from by R _3-1, C _3-1The anti-jamming circuit of forming arrives Ic _3-24 pin, make Ic _3-25 pin and 1 pin reply former current potential.Alerting signal stops, and this process is the artificial termination procedure of internal alarm signal; If unmanned by cryptographic key or pushed the wrong key in these 10 seconds, after 10 seconds, signal is through F so ₅Anti-phase, be further divided into two branch roads, first branch road enters the alarm sound device and makes its warning; Second branch road then passes through R _1-11Entering the networking signal processor makes it to the open air transmission.From Ic _3-2The signal that 1 pin comes out will enter by R _3-2, R _3-11, C _3-2, VD _3-5, V _3-1The capacitance multiplication charging circuit of being formed (this is a kind of of delay circuit).At this moment power supply passes through R _3-2, VD _3-5To C _3-2C is worked as in charging _3-2Current potential be raised to three of supply voltage/two o'clock, Ic _3-22 pin be triggered, make Ic _3-25 pin be returned to former current potential, alerting signal stops.This process is the automatic termination procedure of internal alarm signal, lasts about five minutes therebetween.

Reminiscences shown in Figure 5 and warning indicating device are made up of voltage controlled oscillator, alarm lamp circuit, reminiscences.From Ic _3-2The internal alarm signal that 5 pin come out at first passes through VD _3-1Enter by F ₈, R _4-11, R _4-10, C _4-2The voltage controlled oscillator of forming, its oscillator signal one tunnel arrive hummer makes it send " pout, pout ... " sound, does not forget by password to remind owner; Another road then arrives by VD _4-5, R _4-7, V _4-3, V _4-2The warning indicating circuit of being formed, but not work of pilot lamp at this moment, it is to work when hummer stops sound equipment after 10 seconds again.The work of hummer and pilot lamp is controlled by the internal alarm signal storage, arrives F earlier through 10 seconds internal alarm signal of time-delay ₇6 pin, from F ₇4 pin be divided into two-way after coming out, the one tunnel arrives the alarm sound circuit, another road then is divided into two branch roads, one is from

F

₇8,9 pin enter, arrive F after anti-phase ₈1 pin, hummer is quit work; Second it directly arrive VD _4-6, indicator light circuit is started working, under the oscillatory circuit effect, pilot lamp will send flickering light signal, with the indication place of alarm.

Alarm sound device shown in Figure 6 is by four tones of standard Chinese pronunciation sheet KD9561, loudspeaker Y D4-1, Sheffer stroke gate F ₇, F ₆, voltage controlled oscillator, amplifier, emitter follower form.The signal that comes from inside and outside alerting signal storer enters F respectively ₇6 pin and 5 pin, through F ₇Enter by C _4-3-4, R _4-13, R _4-14And F ₆The voltage controlled oscillator of being formed, oscillator signal is from F ₆3 pin come out, through emitter follower V _4-7Power supply is provided for four tones of standard Chinese pronunciation sheet KD9561, makes it produce interrupted alarm sound signal, this signal is via V _4-5And V _4-6The amplifying circuit of being formed promotes loudspeaker.

Detector shown in Figure 7 is by probe T, electric bridge, recognizer, isolator, anti-jamming circuit and magnetic switch K ₇Form.R among the figure _3-3-2And R _3-6Series connection back and R _3-4, R _3-5, R _3-7Form an electric bridge, brachium pontis is provided with probe T and K switch, if the bridge circuit imbalance just will produce alerting signal, the utility model is designed to two kinds of forms with the imbalance of bridge circuit: the one, and short circuit; The 2nd, open circuit.When short circuit, i.e. K ₇When closing, alerting signal is through Ic _4-2And VD _3-3Enter by R _3-9, VD _3-6 and C _3-5The anti-jamming circuit of forming is again through R _3-10Arrive internal alarm signal storage Ic _3-26 pin; And when opening circuit, when the on line of the T that promptly pops one's head in was cut off, alerting signal was then passed through Ic _4-1And VD _3-2Arrive Ic _3-26 pin, above-mentioned four high guaily unit Ic _4-1And Ic _4-2Form identification circuit, to play identification be short circuit or open circuit these two kinds of situations.This is an ingredient of the utility model destruction prevention device.

Magnetic switch structure shown in Figure 8 is the improvement to existing magnetic switch.Magnet and tongue tube in the existing magnetic switch are discrete, and on door leaf, tongue tube then is contained on the doorframe as magnet cartridge, after door was opened, magnet separated with tongue tube, so report to the police, so the burglar just with the close tongue tube of an external magnet, makes the unlatching of door lose the warning effect.And the utility model is the both sides that magnet 10 and tongue tube 11 are installed on shell 13, makes it to combine as a whole, and inserts iron plate 12 therebetween again and is used for cutting off magnetic field.Now shell is loaded on doorframe, iron plate is loaded on door leaf, and at closing time, iron plate cuts off magnetic field, does not report to the police; When opening the door, the magnetic field conducting is reported to the police; If the just little unlatching in emblem of door as long as iron plate is still being blocked magnetic field, just can not reported to the police.This is for door leaf small unlatching under normal circumstances, as the distortion of wind or door etc., all can not cause false alarm.When the burglar attempts to add magnet one near probe with adding magnet when committing theft, magnetic field just is switched at once, and at this moment door is not just also opened and reported to the police, makes burglar's attempt become futile effort.

Crypto Control Unit shown in Figure 9 is by 2-10 carry counting system device Ic ₇, four high guaily unit Ic _4-3, Ic _4-4, indicating circuit, delay circuit, anti-jamming circuit, lockout circuit and button AN, plug latch CK form.The effect of Crypto Control Unit is to stop alerting signal with cipher instruction, and its course of work is as follows:

One. coding.As shown in Figure 9, CK ₁～CK ₉In plug and button AN ₁～AN ₉Link its socket and Ic ₇Output terminal Q ₀～Q ₈Link CK ₁₀～CK ₁₉In socket and Ic ₇Output terminal Q ₀～Q ₉Link, the order of now pressing password is with CK ₁～CK ₉Plug and socket reversing of position, at this moment, Q ₀Link Q with first of password ₁Link with second of password, and the like.Again with CK ₁₈Plug insert CK ₁₀～CK ₁₉In arbitrary socket in, as inserting and Q ₂In the corresponding socket; And with CK ₁₉Plug insert CK ₁₀～CK ₁₉In another socket in, as inserting and Q ₃In the pairing socket.So just obtain two passwords: first password is Q ₀, Q ₁, Q ₂Pairing three figure places.Second password is Q ₀, Q ₁, Q ₂, Q ₃Pairing four figures.

Two. the generation of cipher instruction.When pressing first key of password, Ic ₇Q ₀The noble potential of end arrives Ic _4-312 pin.Make its current potential be higher than Ic ₇At this moment 13 pin will have signal from Ic _4-314 pin go out, be divided into three the tunnel then: two-way is wherein arranged by by R _5-8, VD _5-2, C _5-2And F ₃The lockout circuit of being formed is pinned, and makes F ₃4 pin do not have potential change, and remaining lead up to R _5-10Arrive Ic ₇Counting end CL, make Q ₁Become noble potential, and Q ₀Vanishing current potential then, this zero potential makes Ic ₄-3 reinstatement attitudes, lockout circuit unpacking, at this moment F ₃4 pin to F ₃13 pin output electronegative potential, meanwhile, Q ₀Zero potential also will pass through R _5-4And VD _5-1Arrive Ic _4-49 pin, make its current potential be lower than Ic _4-410 pin, at this moment noble potential will be arranged from Ic _4-48 pin go out, this noble potential also is divided into three the tunnel, two-way is wherein arranged by by R _5-9, C _5-3, F ₃, F ₄, VD _5-7Another lockout circuit of being formed is pinned, and makes F ₄4 pin do not have potential change, remaining Third Road then arrives F ₃12 pin make it become noble potential because F ₃13 pin are electronegative potentials, so F ₃11 pin do not have potential change, Ic ₇Clear terminal R do not have potential change yet, show carry success, can be by second key.During by second key, Q ₁End becomes zero potential, Q ₂Then become noble potential, and the like.When pressing and CK ₁₈Pairing output terminal such as Q ₂The time, with cipher instruction from CK ₁₈Output, this signal is divided into two-way, and one the tunnel directly enters the F of external alarm signal storer ₆12 pin, 13 pin, the two tunnel through F ₆, F ₅Arrive the F of internal alarm signal storage ₅8 pin, 9 pin, meanwhile, pilot lamp VD _5-8Bright, show that password is correct; When pressing and CK ₁₉Pairing output terminal such as Q ₃The time, cipher instruction will be arranged from CK ₁₉Output is through F ₆, F ₅Enter the F of internal alarm signal storage ₅8 pin, 9 pin.The former is that short-term stops order, through after a while at interval as after 40 seconds cipher instruction stop automatically, recover to report to the police; The latter is the long-term order that stops, at this moment alarm will be in not the state to external alert for a long time, make owner can freely pass in and out the room door, and can make room Men Changkai or open repeatedly with Guan Erjun and do not report to the police, because the internal alarm signal storage is only controlled in long-term termination order, so when external alarm signal, alarm will be worked as usual.

Three. short-term stops the time-delay of order.Short-term stops will losing efficacy behind the order time-delay 40S, thereby recovers to report to the police.The time of this 40S is to be used for closure detector as closing the door to owner, makes it no longer to send alerting signal.The time limit of this 40S is by delay circuit R _5-12, R _5-13, C _5-6, VD _5-6Decide.When pressing CK ₁₈During pairing key, CK ₁₈Be noble potential, this noble potential passes through R _5-12C _5-6 chargings, behind the 40S, time delayed signal arrives F ₄12 pin, 13 pin, arrive Ic after anti-phase ₇Clear terminal R, make Crypto Control Unit ineffective, thereby recover to report to the police.At this moment VD _5-8Go out.This process is an automatic clear.Just recover automatically to report to the police.

Four. the artificial recovery of warning function.When alarm is in the state of long-term termination warning, if, just can recover its warning function at will by an error code.For example, first of error code pairing Ic ₇Output terminal is Q ₇, Q ₇Be zero potential, this zero potential is through R _5-4Arrive Ic _4-49 pin, make its current potential be lower than 10 pin, at this moment noble potential will be arranged from Ic _4-48 pin go out, be further divided into three the tunnel, wherein two-way is blocked circuit and pins, and makes F ₄4 pin do not have potential change, remaining Third Road arrives F ₃12 pin make it become noble potential, and F ₃13 pin be exactly noble potential originally, have after anti-phase electronegative potential to arrive F ₄1 pin, F ₄2 pin be exactly electronegative potential originally, through F ₄Anti-phase, there is noble potential to arrive Ic ₇Clear terminal R, realize zero clearing, controller loses effect, warning function recovers, this process is that the people is zero clearing, just artificially recovers to report to the police.When alarm was in alarm condition, if there is the people to push the wrong sign indicating number, controller was equally with ineffective, and alarm just will be worked as usual, so when the burglar enters the room, if pushed the wrong yard, or do not press password, alarm will be reported to the police.

Five. password anti-stolen measure.If burglar's attempt snatches password, he need open wicket, wicket and K switch on the alarm earlier ₁₀Link, after wicket is opened, K ₁₀Disconnect C immediately _5-5To pass through R _5-14And VD _5-5Discharge makes F ₄2 pin become electronegative potential, again through F ₄Be inverted into noble potential and arrive Ic ₇Clear terminal R, controller loses effect, reports to the police as usual, be impossible so the stranger snatches password.If will recover warning function, need shut wicket earlier, K closes ₁₀, F at this

moment

₄8,9 pin become electronegative potential, after anti-phase, pass through R _5-15Give C _5-5Charging, charging finish back F ₄2 pin recover noble potential, through anti-phase, clear terminal R obtains electronegative potential, reset signal is disengaged, controller recovers its function.

The under-voltage indicating device of power supply shown in Figure 10 and battery is by four high guaily unit Ic _1-3, Ic _1-4, integrated regulator MC7806, identification circuit, indicating circuit, hummer control circuit form.When civil power just often, the stabilized voltage supply operate as normal; When no civil power, stabilized voltage supply is stopped power supply, and at this moment battery GB passes through VD _4-5Realize automaticallying switch, battery begins power supply.When cell voltage drops to 4V, R _4-1And R _4-3Partial pressure value descend V _4-1Base newspaper current potential descend, the collector current potential rises, amplifier Ic _1-43 pin, 2 pin current potential transpositions, 1 pin becomes noble potential, this noble potential is divided into two-way, the one tunnel gives C _4-1Charge, make the F of voltage controlled oscillator among Fig. 5 ₈8 pin become noble potential, and hummer is started working; R is passed through on another road _4-5Arrive Ic _1-35 pin, come out from its 7 pin again, make under-voltage pilot lamp VD _4-4Bright, remind owner to change battery.

Destruction prevention device of the present utility model has following several function:

One. pick-proof is anti-to be pounded.Pick-proof is anti-pounds circuit by R among Fig. 2 _1-6, R _1-7, K switch ₁And K ₂, four high guaily unit Ic _1-1, Ic _1-2Form, when burglar sled is pounded alarm, K ₁Instantaneous being opened, K ₂Then shut.Work as K ₁When opening, Ic _1-213 pin and Ic _1-1The voltage of 9 pin will be higher than Ic _1-110 pin and Ic _1-212 pin, through Ic _1-2And Ic _1-1Anti-phase, its 14 pin and 8 pin become electronegative potential.At this moment will there be alerting signal to pass through R _1-4And R _1-9Transmission meanwhile, is also passed through R in net _2-2Enter the external alarm signal storer, enter acoustics circuit again and report to the police; Work as K ₂When shutting, F ₂5 pin and 2 pin shorted to earths, C _1-2Discharge, F ₂10 pin, 11 pin become electronegative potential, at this moment also will have signal transmitting to net.

Two. the anti-power failure.Anti-power failure circuit is by the VD among Fig. 2 _1-7, VD _1-8, C _1-2, C _1-3Form.When the burglar carries out the destructiveness power failure, C _1-2Pass through VD _1-8Discharge, F ₂5 pin, 2 pin dead electricity, F ₂10 pin, 11 pin become electronegative potential, at this moment will have alerting signal in net, to transmit.When having a power failure, its of short duration power supply is by C _1-3Discharge realize.

Three. the short circuit of anti-networking line and opening circuit.Anti-weak point, open circuit are by the Ic among Fig. 2 _1-1, Ic _1-2And the networking line is formed.When the weak point that the networking line takes place, when opening circuit, Ic _1-110 pin and Ic _1-212 pin current potential vanishing, at this moment the also vanishing of current potential of 8 pin and 14 pin just has alerting signal to transmit in net, realizes reporting to the police.When networking line when entering the user, the transmission line of indoor section can replace with aluminium platinum paper, and aluminium platinum paper is affixed on glass pane, door surface, and roof, ground, metope, when the burglar illegally when enter the room in above-mentioned position, the short circuit of the line that will cause networking and opening circuit, thereby warning.

The utility model has following advantage:

One. the utility model is coupled to net to each alarm, and certain a bit has the police on the net, and the whole network is reported to the police at once, and can point out orientation, alert place, makes it to eliminate in good time alert.

Two. each point is with the password turnover on the net, and with password identification owner and uninvited guest, this has just improved the reliability of reporting to the police greatly.

Three. the utility model can continuous working, and machine around the clock is not so influence owner's normal life and work.

Four. tamper-proof multiple functional.Pick-proof is anti-to be pounded, anti-ly have a power failure, the short circuit of anti-probe and open circuit, the interference of anti-externally-applied magnetic field, prevent the distortion of door.So can not occur failing to report.

The utility model is the desirable burglar alarm of national various confidential departments or other important places.

Claims

1, a kind of networking theft-proof alarm, by networking signal processor 1, external alarm signal storer 2, internal alarm signal storage 3, reminiscences and alarm lamp 4, alarm sound device 5, detector 6, cipher control 7, destruction prevention device 8, power supply and battery are under-voltage indicating device 9, totally 9 parts are formed, it is characterized in that: by A, the networking line that the B direction is come links with networking signal processor 1, networking signal processor and external signal storer 2 link, external signal storer and alarm sound device 5 link, detector 6 links with internal alarm signal storage 3, the internal alarm signal storage respectively with the networking signal processor 1, reminiscences and warning indicating device 4 and alarm sound device 5 link, destruction prevention device 8 links with networking signal processor and alarm sound device, Crypto Control Unit 7 with in, outer alerting signal storer links, under-voltage indicating device of power supply and battery and networking signal processor 1, external alarm signal storer 2, internal alarm signal storage 3, reminiscences and alarm lamp 4, alarm sound device 5, detector 6, cipher control 7, destruction prevention device 8 each several parts link.

2, networking theft-proof alarm according to claim 1, it is characterized in that networking signal processor 1 and destruction prevention device 9 are by four high guaily unit Ic ₁, anti-jamming circuit, indicating circuit, buffer circuit, phase inverter F ₂And tamper-proof circuit is formed.

3, networking theft-proof alarm according to claim 1 is characterized in that external alarm signal storer 2 is by time base circuit Ic _3-1, Sheffer stroke gate F ₅, F ₇, anti-jamming circuit, capacitance multiplication charging circuit form.

4, networking theft-proof alarm according to claim 1 is characterized in that internal alarm signal storage 3 is by time base circuit Ic _3-2, delay circuit, capacitance multiplication charging circuit, anti-jamming circuit, Sheffer stroke gate F ₅Form.

5, networking theft-proof alarm according to claim 1 is characterized in that reminiscences and warning indicating device 4 be made up of voltage controlled oscillator, alarm lamp circuit, reminiscences.

6, networking theft-proof alarm according to claim 1 is characterized in that alarm sound device 5 is by four tones of standard Chinese pronunciation sheet KD9561, loudspeaker Y D4-1, Sheffer stroke gate F ₇, F ₆, voltage controlled oscillator, amplifier, emitter follower form.

7, networking theft-proof alarm according to claim 1 is characterized in that detector 6 is by probe T, electric bridge, recognizer, isolator, anti-jamming circuit, magnetic switch K ₇Form.

8, networking theft-proof alarm according to claim 7 is characterized in that magnetic switch K ₇In magnet 10 and dried spring 11 respectively stationary installations make it to combine as a whole in the both sides of shell 13, insert iron plate 12 therebetween.

9, networking theft-proof alarm according to claim 1 is characterized in that Crypto Control Unit 7 is by 2-10 carry counting system device Ic ₇, four high guaily unit Ic _4-3, Ic _4-4, indicating circuit, delay circuit, anti-jamming circuit, lockout circuit and button AN ₁～AN ₉, plugs and sockets CK ₁～CK ₁₉Form.

10, networking theft-proof alarm according to claim 1 is characterized in that the under-voltage indicating device 9 of power supply and battery is by four high guaily unit Ic _1-3, Ic _1-4, integrated regulator MC7806, identification circuit, indicating circuit, hummer control circuit form.