CN2350817Y

CN2350817Y - Intelligent electronic theft alarm

Info

Publication number: CN2350817Y
Application number: CN 98237071
Authority: CN
Inventors: 赫明华
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-23
Filing date: 1998-03-23
Publication date: 1999-11-24
Anticipated expiration: 2008-03-23

Abstract

The utility model relates to an intelligent anti-theft electronic alarm which can convey door and window anti-theft alarm signals mainly through communication transmission lines. The alarm can be formed by using a central processing unit CPU as a control centre, using a vibration signal acquisition channel, a telephone line secant or a reverse joint information acquisition channel and a telephone communication signal acquisition channel as a data acquisition channel, and a low power consumption control circuit, a telephone line alarm execution channel and a telephone line control telephone as a CPU instruction execution channel. The utility model can have the characteristics of accurate judgment, fast reaction speed and strong guarding capability, and can avoid the phenomena of false alarm or failure alarm, etc. caused by artificial alarm releasing and precaution alarm of the existing anti-theft device.

Description

The intelligent anti-theft electronic alarm

The utility model relates to the safety alarm device that is used for family, unit door window antitheft, in particular mainly utilize communication line to transmit the intelligent and safe warning device of warning message.

Present burglar alarm technical development is very fast, and its measure of taking one is the physical quality that improves door and window, reaches the purpose that prolongs time to rupture as far as possible; The 2nd, by being installed on sensor and the warning device on the door and window, realize meeting robber's warning function.The Ji Liduo of its realization is activated the switching value signal that the produced enabling signal as warning circuit according to door and window, its technology is formed fairly simple, but all need artificial early warning in advance or separate alert operation afterwards, otherwise will cause the alert even false dismissal of mistake, and do not have antitheft effect.The technological prevention ability that this class technology is adopted, very easily destroyed, lose the burglar alarm performance.What particularly existing anti-theft device adopted mostly is acousto-optic expulsion type of alarm, strick precaution department is difficult to acquired information as early as possible, give rapid reaction, both made and adopted wireless transmission type of alarm, also can its application is restricted because of the influence of transmission environment, the unfavorable factors such as condition of receiving a crime report.Therefore, existing all kinds of burglar alarm technology respectively have its deficiency, and this is conspicuous.

Goal of the invention of the present utility model is to provide a kind of and passes to the warning device of the strange land owner or the department of strick precaution rapidly by the communication line fast breath of will reporting to the police, especially provide a kind of can the non-destruction interfere information of filtering, to steal, destruction realizes the intelligent theft-proof electron alarm of accurately reporting to the police.

Realize the intelligent anti-theft electronic alarm of present technique goal of the invention, it mainly is to be control center with the central processor CPU, carries out passage with data acquisition channel and instruction and constitutes, and its major technique characteristics are that (1) data acquisition channel comprises:

1. vibration signals collecting passage: it is made up of the vibration transducer and the vibration signal processing circuit that are installed on door, the window;

2. telephone wire secant or connect anti-information acquisition passage;

3. telephonic communication signal sampling channel: it is the telephone wire communication signal testing circuit to CPU acquisition testing data that is made of small-signal filter amplification circuit and pulse output comparator circuit.

(2) instruction execution passage includes:

1. low power consumption control circuit;

2. telephone wire report to the police to be carried out passage: it includes circuit and its information is amplified the telephone interface circuit that transmits, and circuit comprises telephone number or BB plane No. code memory and the dial-up circuit that is started by cpu instruction at least;

3. detect through CPU and judge the telephonic communication signal, and then send the telephone wire control circuit that instruction realizes that ruthless pre-emption is connected.

In technique scheme, in data acquisition channel and instruction execution passage, also be respectively equipped with telephone wire ringing circuit and monitoring circuit, its order all is after warning message sends, by CPU acquisition testing calling line telephone ringdown, start monitoring circuit so that judge whether to send instruction, by the stolen on-site signal that transmits for accurate judgement.

The designed intelligent anti-theft electronic alarm of the utility model has following technique effect: its central processing unit can be according to detection signal of being gathered and feedback information, cut off or whether telephone wire is connected after being written into dialing signal, busy tone, BB plane No. entry communication net are medium as vibration signal, telephone wire, carry out analysis-by-synthesis, judgement, so that whether decision starts each corresponding passage of carrying out, finish the functions such as judgement, rapid reaction warning of stealthy activity.Therefore have the characteristics of high-intelligentization, got rid of the similar non-larceny or the interference of other signal, the accuracy rate of warning is significantly improved.Present technique also changed fully in the past door and window is destroyed the drawback of just being reported to the police after the realization substantially, can in the middle of the process of destroying, promptly accurately report to the police, realized antitheft and Rapid Alarm real combination, guaranteed the effect of taking precautions against really.Set low power consumption control circuit in the technical program has realized that also power consumption is low when being in static state, satisfies the purpose of need of work during work with the electric weight of abundance.Another characteristics of present technique are to need not artificial early warning or separate alert operation, have avoided the appearance of false dismissal or the alert phenomenon of mistake.

Describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is the technology composition frame chart of the utility model electronic alarm

Fig. 2 is the enforcement circuit theory diagrams of this electronic alarm

Fig. 3 is the circuit theory diagrams that telephone wire ringing circuit, monitoring circuit are connected with central processor CPU.

As shown in the figure, this intelligent anti-theft electronic alarm is to be control center with CPU, by vibration signals collecting passage, telephone wire secant or connect the five circuit-switched data acquisition channels that designature acquisition channel, telephonic communication signal sampling channel, telephone wire ring acquisition channel and battery electric quantity sense channel constitute, carry out each road instruction that passage constituted by low power consumption control circuit, telephone wire control circuit and telephone wire warning and carry out passage, formed robotization warning function implement device jointly.What in the present embodiment, central processor CPU adopted is AT89C2051 computer microcontroller.Vibration signals collecting passage involving vibrations sensor and vibration signal processing device, the form of utilizing of vibration transducer can be vibration transducers such as common piezoelectricity/electret/electromagnetic type, spring type, Mechanical Contact type, what present embodiment adopted is the CLA-3 type omnidirectional vibration transducer that sensitivity is adjustable, have omnidirectional's detection and high anti-jamming capacity, the vibration signal processing device is module HY-9602, the induction output signal inserts the 9th pin of CPU, also as the switching signal of low power consumption control circuit, formed the integrated circuit CGQ in the block diagram jointly simultaneously.Telephone wire secant or the purpose that is provided with that connects the designature acquisition channel are to be connect anti-or communication line when being cut off when telephone wire, in time take communication mode such as sound and light alarm to be warned, and make provision against emergencies.It is by the direct-coupled switching tube N of two-stage ₄, N ₅Constitute switching tube N ₅Can also be N ₅', N ₅" the Darlington transistor of forming.Telephone wire is through unidirectional diode D ₆Connect switching tube N with the prime input end ₅8th pin of collector output by CPU transmit induced signal to CPU, when telephone wire cut off or because of carelessness connect anti-, diode D ₆With switching tube N ₄Oppositely end N ₅Conducting is promptly imported a low level induced signal to CPU, and also simultaneously as the switching signal of low power consumption control circuit, CPU goes out enabled instruction by its 15th human hair combing waste after detecting this signal to this signal, by loudspeaker S ₁With light emitting diode L ₃The acousto-optic circuit that is constituted sends the corresponding prompt signal.Because cutting off telephone wire is robber's common damage means, therefore, another of this passage implemented structure, by the full-bridge circuit D that is constituted by a diode _zBe connected in the telephone wire two ends, polarity is connect during anti-fusion circuit forms, form the two-way admittance operating circuit, original call line secant circuit is only responded to the secant signal, and passes to that CPU detects, sound and light alarm.The telephonic communication signal sampling channel includes by amplifier A ₂The prime small-signal filter amplification circuit and the amplifier A that form ₃Constitute with amplifier A ₂Output signal and reference signal U _R6The comparison amplifier of the back level shaping pulse of comparing, comparison amplifier A ₃Output terminal connect with data bus the 6th pin of central processor CPU, the input detection signal, its be provided with purpose be CPU detect induced signal that vibrating circuit CGQ transmits for the signal of forcing open the door unusually after, start telephone wire control circuit and telephone line interface circuit immediately, behind simulation Outgoing Call number or BB plane No. sign indicating number and the code, CPU by the feedback signal on this passage detection telephone wire, puts through sound as ringing tone, busy tone or BB machine immediately, determines whether start storage circuit IC with this ₃Send voice signal or other flag code of having recorded by sound circuit etc.Telephone wire ring acquisition channel be CPU finish send the alerting signal on-hook by communication line after, detect the induced signal of this acquisition channel input immediately, whether the phone of coming of dialling is arranged, so that determine ruthless pre-emption off-hook, startup monitoring circuit, monitor field data, further determine alert.As shown in Figure 3, the telephone wire ring is by being by capacitor C ₇, diode D ₇, electrochemical capacitor E ₈With voltage stabilizing diode Z ₁The filtering of being formed, rectification, mu balanced circuit are linked by input end M point and telephone wire, are high level signal about 10V with the high amplitude ring AC signal rectification on the telephone wire, as the switching tube N in the telephone wire secant passage ₅Switch controlling signal, be converted into the low level useful signal, the input CPU the 8th pin, central processor CPU starts telephone wire control circuit ruthless pre-emption off-hook immediately, simultaneously its data line the 11st pin is put high level, starting switch pipe N ₇,, field data is written on the telephone wire by telephone interface circuit for monitoring circuit provides working power.Telephone wire ring passage is by switching tube N ₅Formed low level useful signal is simultaneously also as the switching signal of low power consumption control circuit.Also be provided with the battery electric quantity sense channel in this alarm, only adopted simple source resistance voltage divider R in the present embodiment ₁₅, R ₁₆, comparison amplifier A ₄With single base diode D ₅For the circuit of reference voltage composition, by IC ₄The 14th pin to the 3rd pin out-put supply electric weight high-low signal of CPU, when CPU detects battery electric quantity when not enough, then start acousto-optic circuit through internal processes, warned.Below passage being carried out in its instruction is set forth respectively.The low power consumption control circuit is by common base triode P ₁With CPU the 7th foot control system be used to lock triode P ₁The locking switch pipe N of base stage ₆Constitute triode P ₁Input signal be battery voltage signal, output be circuit power V _DD, this low power consumption control circuit is at first by triode P ₁Base stage induction vibration circuit CGQ, telephone wire secant passage or telephone wire ring passage transmit the low level signal that comes, make triode P ₁Conducting is for circuit working provides power supply V _DD, meanwhile, CPU puts height with its 7th pin, switching tube N after detecting these low level useful signals ₆Supply voltage is kept in the locking of conducting ground connection; Otherwise it is low that 7 pin of CPU are put, switching tube N ₆End, thereby cut off the complete machine power supply, be in dormant state, realize the technique effect of low power consumption.The telephone wire control circuit is the amplifier tube N by CPU the 2nd toe order control ₃With the relay J of amplifying in the output loop ₁Form relay J ₁Contact controlledly link with interior lines or outside line, when CPU the 2nd pin is put when high relay J because of internal processes requires to report to the police ₁Then this device and outside line are connected in ruthless pre-emption, connect communication channel.The telephone wire warning is carried out passage and is included alerting signal memory circuit and telephone interface circuit, and the alerting signal memory circuit includes the dual-tone dialing IC circuit ₂, IC ₃With sound circuit YYK, in this enforcement structure, signal storage such as phone or BB plane No. sign indicating number and code are in IC ₂Among-the EPROM, when reporting to the police, CPU is with IC ₃Storage information call in after the CPU internal memory handles, be written into telephone wire by the dual-tone dialing circuit through telephone interface circuit, the ic chip of dual-tone dialing circuit ₂Can adopt the HN9102D chip, the 15th pin of its start end the 5th pin and CPU links, and exports telephone number and code information by its 12nd pin through telephone interface circuit.That sound circuit YYK adopts is the anti-power down module LSD1110 that collects and compile sound, playback one, and 1,2 pin meet recording Mike M ₁, 5 pin are the playback output terminal, link through R42 and telephone interface circuit, and 8 pin of 7 pin and CPU link, and this pin is a loop playback during for low level, 9 pin and the number of writing recording access DZ ₂Join, this pin begins recording during for low level.The telephone wire warning is carried out passage and is also included monitoring circuit, and it is by Mike M ₂With amplifying triode N ₉Form, by amplifier tube N ₉Collector output through telephone interface circuit on-site signal is written into telephone wire.Telephone interface circuit is the AC signal amplifying circuit, and in the present embodiment, it is secondary amplifying triode N ₂, N ₁Form, double-audio signal, voice signal and monitoring signal are respectively through R ₄₁, R ₄₂, R ₄₀Be input in this amplifying circuit by the N point, be loaded on the telephone wire at last.

The course of work of this intelligent anti-theft electronic alarm is as follows: when the people touched antitheft door, vibrating circuit CGQ put the CPU9 pin low, made the work of low power consumption control circuit simultaneously, for complete machine provides power supply V _DD, after CPU accepts this signal, through judging, handle, when going upstairs as taking big goods, filtering undesired signals such as accidentalia, key open the door, knock at the door such as hits, and shut down, or sound and inform that owner has the guest; Otherwise for improper enabling signals such as sled, brills, CPU enters alert program automatically.At first start the telephone wire control circuit, this alarm is inserted on the telephone wire, simultaneously with memory IC by the CPU2 pin ₃Telephone number, BB plane No. sign indicating number and code call in the CPU internal memory after, the alert levels of formulating by internal processes is by the dual-tone dialing IC circuit ₂Transfer to respective number respectively through telephone interface circuit, BB machine, 110 alarm centers as owner, import the detection signal of telephonic communication signal sampling channel again through the 6th pin of CPU, whether detect it is ringing tone or busy tone, if the former, then the voice messaging with sound circuit YYK is written into telephone wire, informs contents such as relevant stolen place, on-hook then.After this, the phone ringing passage detects the ring induced signal of telephone wire, if ring is arranged, then to CPU the 8th pin input low level signal, make it start telephone wire control circuit and monitoring circuit realization off-hook and transmission on-site signal respectively, further analyze field conditions, this electronic alarm also to telephone wire cut off destroy or other as situations such as guests, different acousto-optic display message is set.

Claims

1, a kind of intelligent anti-theft electronic alarm, it is to be control center with the central processor CPU, carries out passage with data acquisition channel and instruction and constitutes, it is characterized in that: (1) data acquisition channel comprises:

2. telephone wire secant or connect anti-information acquisition passage;

3. telephonic communication signal sampling channel: it is the telephone wire communication signal testing circuit to CPU acquisition testing data that is made of small-signal filter amplification circuit and pulse output comparator circuit;

(2) instruction execution passage includes:

1. low power consumption control circuit;

2, electronic alarm according to claim 1 is characterized in that the low power consumption control circuit is by common base triode (P ₁) and be used to lock triode (P by CPU one data line control ₁) the locking switch pipe (N of base stage ₆) constitute common base triode (P ₁) input, output be respectively battery supply signal, complete machine working power (V _DD).

3, electronic alarm according to claim 1, it is characterized in that carrying out telephone wire in the passage in data acquisition channel and instruction reports to the police and carry out passage and also be respectively equipped with telephone wire ring acquisition channel and monitoring circuit, telephone wire ring acquisition channel be link on the telephone wire by electric capacity (C ₇), diode (D ₇), electrochemical capacitor (E ₈) and voltage stabilizing diode (Z ₁) filtering, the regulator rectifier circuit that constitute.

4, electronic alarm according to claim 1, it is characterized in that the telephone wire secant or connect anti-information acquisition passage be by insert the telephone wire two ends by diode full-bridge two-way circuit (D _z) and the direct-coupled switching tube (N of two-stage ₄, N ₅) constitute.

5, electronic alarm according to claim 1 is characterized in that being provided with the battery electric quantity sense channel in data acquisition channel, it is by with supply voltage (V _DD) bleeder circuit (R ₁₅, R ₁₆) voltage division signal and unijunction diode (D ₅) be the comparison amplifier (A of comparison signal ₄) constitute.