CN2452067Y

CN2452067Y - Intelligent antitheft alarmer

Info

Publication number: CN2452067Y
Application number: CN 00246257
Authority: CN
Inventors: 皇甫尚质
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-02
Filing date: 2000-08-02
Publication date: 2001-10-03
Anticipated expiration: 2010-08-02

Abstract

The utility model belongs to an alarm device which adopts electronic technology. The utility model is suitable for indoor theft-proof alarm, such as families, etc. The utility model is mainly characterized in that the utility model is additionally provided with a keyboard and interrupt handling circuit, an interrupt clearing circuit, a dot pattern liquid crystal character display circuit, a door bell calling circuit, a telephone remote control circuit, a wireless receiving circuit, an interface circuit, etc., besides an adopted common electronic alarm circuit; the existing DTM sending and receiving circuit, the existing single-chip computer control circuit, the existing broken line detecting circuit, and the existing power supply circuit are improved. The utility model has the advantages of convenient operation for man-machine interfaces, display mode for multistage menu, high reliability, interference prevention, automatic prompt by the telephone, long-distance controllable performance, automatic theft protection, multi-section speech recording and reproducing, etc., so the performances of the utility model are obviously superior to the performances of the traditional technology.

Description

Intelligent anti-theft alarm device

The utility model relates to a kind of warning device that adopts electronic technology, particularly a kind of home-use intelligent anti-theft alarm device.

At present, domestic product and patent about guard against theft and alarm system is quite a lot, and its performance and characteristics have nothing in common with each other.Though some guard against theft and alarm system function is a lot, still inconsiderate on practicality, the man-machine interface that for example is awkward causes many more being difficult to more of function to operate.In addition, that does on antitheft initiative is not enough, can only could start warning after the robber enters the defence area, and can not make the robber just cancel the thought of theft in the exploration stage.Also have bad that some guard against theft and alarm systems do on anti-interference, cause deadlock easily.In addition, along with the development of technology, can also absorb more new practical technique come in as guard against theft and alarm system based on telephone wire.

The purpose of this utility model is to avoid the weak point of above-mentioned prior art, and provide a kind of and utilize new components and parts to make that system is more reliable, circuit is simpler, cost is cheaper, and the intelligent anti-theft alarm device with new utility function.

For achieving the above object, the utility model is taked following technical measures:

Adopt lattice graphics lcd to realize that Chinese character shows (realizing that as foreign country's outlet then being adopted the dot character liquid crystal letter shows), make the operation interface close friend, be convenient to operation.On the display mode, adopt the similar multilevel menu that cell-phone function is set.Adopt outside Watchdog circuit, prevent system in case of system halt, increase system reliability.Adopt outside real-time clock, not only can show the time, can also set the telephone prompts function, put through owner's phone at preset time, which part thing this has done with voice suggestion.Utilize the doorbell call circuit, no one and when having the visitor to ring a doorbell, dial the phone that the user sets automatically at home so that the user directly talks with the visitor, makes in the family forever that the someone guards, and reaches the purpose of pre-theft protection.Adopt the remote telephone module, make people just can carry out switch control, the life that is convenient for people to by phone the electrical equipment in the family in the other places.Utilize single-chip microcomputer to produce music, make that alarm also is the music door-bell that music can be set simultaneously.

Technical scheme is as follows:

Adopt audio record circuit 3, DTMF (touch-tone signal, as follows) transmission circuit 1, monitoring circuit 4, receive decoding circuit 5, drive circuit of indicator 9, the empty system of dislodging machine circuit 10, multi-way switch circuit 14, photoelectricity is isolated and driving circuit 16, steal line detection circuit 11, ring detecting circuit 12, single chip machine controlling circuit 7, break detection circuit 17, power circuit 13, wireless receiving circuit 20, the invention is:

A, also the keyboard that is connected with single chip machine controlling circuit 7 respectively and Interrupt Process circuit 2, interrupt clear circuit 6, lattice graphics lcd Chinese character display circuit 8 are set, interrupt clear circuit 6 also connects break detection circuit 17 respectively, steals line detection circuit 11, keyboard and Interrupt Process circuit 2; The doorbell call circuit 15 that setting and keyboard are connected with Interrupt Process circuit 2; The remote telephone circuit 19 that is connected with photoelectricity isolation and driving circuit 16 is set; The wireless receiving circuit 20 that setting and reception decoding circuit 5 are connected.

B, in DTM transmission circuit 1, be provided with and concentrate audio amplifier circuit IC5;

In single chip machine controlling circuit 7, be provided with the programmable address decoder IC3 of exportable E signal;

In power circuit 13, be provided with circuit for generating negative voltage;

Break detection circuit 17 is provided with voltage comparator, and follower connects step by step.

Keyboard and Interrupt Process circuit 2 are provided with 4 * 4 keyboards that are made of latch IC8, driver IC 10, also be provided with and the function key that is connected with door IC17, each look-at-me through with door IC17 with after, deliver to the interruptive port of single-chip microcomputer IC1.

Interrupt clear circuit 6 is provided with D flip-flop IC13 and connects inverter ic 9A, IC9B respectively, and the clear signal of D flip-flop IC13 connects output port or the Extended Capabilities Port of single-chip microcomputer IC1 respectively.

Doorbell call circuit 15 is provided with acoustic control hands-free phone IC circuit 27, and low-power audio amplifier IC25, the pin 3 of IC circuit 27, the pin of amplifier IC25 1 all link to each other with the control pin ML of the relay J 2 of dislodging machine control circuit 10;

Remote telephone circuit 19 is provided with relay J 3, and the field coil of this relay is isolated with photoelectricity and the Darlington chip for driving IC23 of driving circuit 16 is connected, and the contact of this relay is serially connected in socket, the plug loop.

Wireless receiving circuit 20 is connected and composed than the shaping amplification circuit III step by step by selective frequency amplifier circuit I, Armstrong circuit II, voltage ratio.

The utility model is described in further detail below in conjunction with drawings and Examples:

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

Fig. 2 is DTMF transmitting-receiving, speech recording and reproducing, keyboard and Interrupt Process, monitoring, reception decoding circuit schematic diagram;

Fig. 3 is interrupt clear, Single-chip Controlling, the demonstration of lattice graphics lcd Chinese character, drive circuit of indicator schematic diagram;

Fig. 4 is ring, robber's line, burn out detection, multichannel switching, the control of dislodging machine, photoelectricity isolation and driving, interface circuit schematic diagram;

Fig. 5 is that power supply, doorbell are called out, the remote telephone circuit theory diagrams;

Fig. 6 is the circuit theory diagrams of high frequency wireless receiving circuit.

The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):

With reference to Fig. 1, the utility model is by DTMF transmission circuit 1, keyboard and Interrupt Process circuit 2, audio record circuit 3, monitoring circuit 4, receive decoding circuit 5, interrupt clear circuit 6, single chip machine controlling circuit 7, lattice graphics lcd Chinese character display circuit 8, drive circuit of indicator 9, dislodging machine control circuit 10, steal line detection circuit 11, ring detecting circuit 12, power circuit 13, multi-way switch circuit 14, doorbell call circuit 15, photoelectricity is isolated and driving circuit 16, break detection circuit 17, interface circuit 18, remote telephone circuit 19, wireless receiving circuit 20, keyboard, loudspeaker, compositions such as shell.

With reference to Fig. 2-Fig. 6, dislodging machine control circuit 10 comprises diode D1-D4, relay J 1 and J2, voltage dependent resistor (VDR) VR, resistance R 8, capacitor C 1, coupling transformer TR1.Relay J 1 control off-hook and on-hook, the connection of relay J 2 control doorbell circuits with separate.Coupling transformer TR1 is the bridge between outside line and other internal circuit of alarm.

DTMF transmission circuit 1 comprises integrated circuit (IC) 4 (MT8888) and IC5 (LM386), resistance R 78, R79 etc.IC4 is the dtmf tone Code And Decode chip of signal frequently, during decoding, deliver to the 2nd pin (input pin) of IC4 from the sound signal of telephone line through C46,14,15,16,17 pin of IC4 will output decoder data (binary-coded decimal) be sent to cpu control circuit, carry out respective handling; During coding, 14,15,16,17 pin of IC4 receive the data from CPU, and encoded back becomes corresponding D TMF signal to data and delivers to 3 pin of IC5 and amplify and send.

Audio record circuit 3 comprises integrated circuit (IC) 6 (ISD1420) and IC12 (74HC373), resistance R 62, R63 etc.1, the 2 pin solid grounds of IC6, single chip machine controlling circuit is controlled the address of IC6 and is realized recording or playback to IC12 by the data bus output data.Because the address can be by the data decision of delivering to IC12, so can be realized by recording of multistage ground, address or playback by single chip machine controlling circuit control.Total record length of the ISD1420 that present embodiment is selected is 20 seconds, certainly selects other series of ISD as ISD2500 series, ISD33000 series etc., to increase total record length.3 pin that the voice of output are delivered to shared amplifier IC5 through R64 amplify and pass out to multi-way switch circuit 14.

Keyboard and Interrupt Process circuit 2 comprise integrated circuit (IC) 8 (74HC373) and IC10 (74HC244) and IC17 (4068) and resistor chain RN4, RN6, capacitor C 56.2,5,6,9 pin of IC8 and 2,4,6,8 pin of IC10 constitute 4 * 4 keyboards.Be connected on 2,3,4,5 pin of IC17 is 4 independent function keys, each presses these 4 keys and can both make 1 pin of IC17 become low level, causes the interruption of CPU, has no progeny in the CPU response, 3,5,7,9 pin reading of data from IC10 are correspondingly processed according to different data then.

Monitoring circuit 4 comprises integrated circuit (IC) 14 (LM358) and resistance R 71, R72 etc.The shared microphone M1 of monitoring circuit and audio record circuit.Sound signal after two-stage is amplified passes out to multi-way switch circuit 14 through C64.

Wireless receiving circuit 20 comprises triode Q5, Q6, integrated circuit (IC) 30 (LM358) etc.Constitute the selective frequency amplifier circuit I by antenna ANT, C71, L1, C72, Q5, R81-R83.Constitute the Armstrong circuit II by C79, L4, VC1, C76, Q6, C74, C77, C73, R84, L2, R88, R87 etc.When receiving extraneous signal, the 3rd pin input by IC30, after the voltage ratio that constitutes via IC30, R91, R92, R89, R93, R94 etc. is handled than the shaping amplifier III, in the 7th pin output signal by 1C30, be sent to

photoelectric isolating circuit

16,14 pin that are sent to the IC7 that receives decoding circuit 5 after isolating carry out decoding processing.

Receive decoding circuit 5 and comprise integrated circuit (IC) 7 (PT2272), IC15 (74HC244), IC9D (74HC14), resistance R 51, R70 and wire jumper row JP.Be sent to 14 pin of IC7 from the signal of wireless receiving.Decoded data (binary-coded decimal) are delivered to 2,4,6,8 pin of IC15 through 10,11,12,13 pin of IC7.When IC7 received valid data, 17 pin became high level, deliver to single chip machine controlling circuit through IC9.D, caused to interrupt.Have no progeny from the IC15 reading of data in the single-chip microcomputer response.The type of alarm that single-chip microcomputer is different according to different data identification is made corresponding processing.Wire jumper row JP is the identity that is used for being provided with different user.

Interrupt clear circuit 6 comprise integrated circuit (IC) 13 (A, B, 74HC74), IC9 (A, B, E, 74HC14).1,13 pin of IC13 are connected on the high level, and 2,12 pin are connected on the low level, and 5 pin, 9 pin are linked respectively on 9 pin and 11 pin of IC17 of keyboard and Interrupt Process circuit 2.When having detected robber's line or broken string, 1 pin of IC9 or the level of 3 pin are low by hypermutation, and positive transition can appear in 2 pin or 4 pin at IC9 so, and this saltus step triggers IC13, make it 5 pin or 9 pin by high step-down, thereby make the interruption that causes single chip machine controlling circuit with 1 pin of door IC17 (4068).Because stealing line and broken string often is for a long time, as not removing, then can make single chip machine controlling circuit 7 be in interruption status, just system's cisco unity malfunction like this by stealing the look-at-me that line and broken string cause always.The utility model will be linked respectively on 4 pin and 10 pin of IC13 from the clear signal of 8,14 pin of IC1 (single-chip microcomputer), steal like this in line and the broken string initiation and have no progeny, 4 pin of monolithic function control IC13 or 10 pin become low level makes 5 pin of IC13 or 9 pin recover high level, interrupts thereby remove.

Single chip machine controlling circuit 7 comprises IC1 (8031 compatible CPU), IC16 (74HC373), IC20 (27C256), IC3 (GAL16V8 or PAL16R8), IC2 (24C021), IC18 (PCF8563), crystal oscillator CR2, diode D25-D27, resistance R 76, R77 etc.Present embodiment adopts the 80C31+74HC373+27C256 single chip computer architecture, can certainly substitute with 51 compatible single-chip microcomputers of self tape program storer, as the P89C54 of Dutch PHILPS 8, the GMS97C54 of Korea S LG 68, the W78E54 of Taiwan WINBOND 8 etc.Here, IC3 is programmable GAL or PAL device, and it has two effects: the one, as address decoder; The 2nd, produce the required two-way E signal (the dot character liquid crystal is a tunnel) of lattice graphics lcd Chinese character display circuit 8.For producing the E signal, the WR of single-chip microcomputer needs to link to each other with the input pin of IC3 with the RD pin, and through the programming to IC3, IC3 can produce required E signal.IC2 adopts CAT24C021 in the present embodiment, and it is the chip that integrates three kinds of functions of eeprom memory, reset controller and WatchDog Timer (Watchdog).Its EEPROM is used for the data of saved system.Reset controller and WatchDog Timer can be given reset signal of CPU when system breaks down, guarantee system's reliability service.IC18 is PCF8563, and it is the CMOS real-time clock/calendar chip of low-power consumption.IC2 and IC18 are the I2C bus.

Lattice graphics lcd Chinese character display circuit 8 comprises potentiometer P1 and lattice graphics lcd module CLCD (MGLS-12032 compatibility), and one termination of P1-10V voltage is used for regulating liquid crystal contrast of display degree.This lattice graphics lcd module can show two row Chinese characters, and every row can show 7.5 Chinese characters.

Drive circuit of indicator 9 comprises integrated circuit (IC) 11 (74HC373), resistor chain RN5, eight light emitting diodes.Single chip machine controlling circuit can be controlled the switch of each light emitting diode by data bus.

Steal line detection circuit 11 and comprise triode Q2-Q4, diode D9-D13, D15, D16, stabilivolt D17, light lotus root IC29 (A, B), resistance R 23, R24 etc.When not having the line of robber, telephone line voltage punctures voltage stabilizing D17, the Q3 conducting, and Q4 ends, and Q2 ends, and light lotus root IC29.A (TLP251-4) ends, and STL is a high level.When the line of robber was arranged, owing to be reduced to the voltage breakdown of D17 under the voltage, Q3 ended, the Q4 conducting, and the Q2 conducting, light lotus root IC29.A conducting, STL is caused CPU and is interrupted by high step-down.When the own off-hook of user, though be reduced to the voltage breakdown of D17 under the voltage Q3 is ended, the lotus root IC29.B conducting of this time causes Q4 to end, and Q2 ends, and light lotus root IC29.A ends, and STL keeps high level.

Ring detecting circuit 12 comprises integrated circuit (IC) 29.D (light lotus root), protection diode D14, current-limiting resistance R1, capacitor C 18.When telephone line was in waiting status, light lotus root IC29.D ended, and RING keeps low level.When ring takes place when, there is electric current to pass through on the light lotus root diode, the interrupted conducting of light lotus root, the RING output terminal intermittently is a high level, causes CPU and interrupts.

Break detection circuit 17 comprises integrated circuit (IC) 24 and resistance R 4-6, R9.IC24 is double operational LM358, and the previous stage amplifier constitutes voltage comparator, in addition the one-level amplifier 6, the 7 pin driving force that constitutes voltage follower and increase voltage comparator that links to each other drive light lotus root IC21 (TLP521-4).When phone was in normal condition, end of oppisite phase voltage was higher than in-phase end voltage, voltage comparator output low level then, and voltage follower is output low level also, and light lotus root IC21 ends; When telephone wire was cut off, end of oppisite phase voltage was 0, was lower than in-phase end voltage, so voltage comparator output high level, and voltage follower is also exported high level, light lotus root IC21 conducting, and 12 pin (JX) of IC21 become low level by high level, cause CPU and interrupt.

Power circuit 13 comprises triode Q1, three-terminal regulator block PW1, PW2, integrated circuit (IC) 28 (NE555) etc.Constitute the 9V charger by R33, R34, D6, Q1, D24, D7 and battery E, reserve battery is carried out floating charging.By integrated circuit (IC) 28 is that time-base integrated circuit 555 and resistance R 19, R20, R21, R22, capacitor C 5, C6, C7, C8, C9, C12, diode D5, D8, D20, D21, D22, D23 constitute circuit for generating negative voltage, for dot-matrix lcd module provides negative voltage.

Multi-way switch circuit 14 comprises two-way switch IC26 (4016), and the sound signal that IC26 is controlling sound signal after IC5 amplifies and monitoring is to outside line or to the switch and the switching of loudspeaker.

Photoelectricity is isolated and driving circuit 16 comprises Darlington chip for driving IC23 (MC1413), light lotus root chip IC 21, JC22 (TLP521-4), resistor chain RN1, RN2 etc.IC23 directly drives relay J 1, J2, J3, controls the switch of IC26 simultaneously.Light lotus root IC21, IC22 isolate in week digitally and simulation ground, are used for reducing the interference of system.Interface PORTB is used for linking to each other with wireless receiving circuit 20.

Doorbell call circuit 15 comprises integrated circuit (IC) 25 (MC34119), IC27 (MC34118), light lotus root IC29.C etc.IC27 is an acoustic control hands-free phone integrated circuit, and IC25 is the low-power audio amplifier.IC25 and IC27 constitute a high-quality hand-free call system.The pin 3 of IC27 and the pin 1 of IC25 all link to each other (ML) with the control pin of dislodging machine control circuit 10 repeat circuit J2, driven by IC23 (MC1413).Right when the ML step-down, start this system works.At this moment, this system links to each other with telephone line by coupling transformer TR1.

Remote telephone circuit 19 comprises relay J 3, socket SOCKET, plug PLUG.The field coil of relay is received on 11 pin of IC23 (MC1413).When relay J 3 adhesives, socket SOCKET has.Certainly, also can add a drive integrated circult MC1413 and a plurality of relay in the present embodiment, utilize the port more than needed of IC8 to realize multichannel control, to control more household electrical appliance.

The utility model compared with prior art has following advantage:

1, adopt Lattice graphics LCD module to realize that Chinese character shows (as dot character liquid is then adopted in foreign country's outlet Brilliant realization letter shows), make the operation interface close friend, convenient operation. On the display mode, adopt the similar mobile phone that arranges The multilevel menu of function;

2, adopt outside Watchdog circuit, prevent system in case of system halt, increase system reliability;

3, adopt outside real-time clock, not only can displaying time, can also set the telephone prompts function, predetermined Time put through owner's phone, which part thing this has done with the voice suggestion that records in advance;

4, utilize the doorbell call circuit, at home no one and when having the visitor to ring a doorbell, automatically dial the user and establish Fixed phone so that the user directly talks with the visitor, makes in the family forever that the someone guards, and reaches the order of pre-theft protection . And when the people being arranged at home, this alarm has just become music door-bell, and the music of doorbell can be liked according to the user Good optional from 25 kinds of music;

5, adopt the remote telephone module, make people just can carry out switch to the electrical equipment in the family in the other places by phone Control is convenient for people to life;

6, adopt the playback of multistage Speech Record, can be according to different alerts (theft alarm, fire after putting through owner's phone Police, gas leakage, doorbell are called out) the different alarm voice of broadcast.

Claims

1, a kind of intelligent anti-theft alarm device, comprise: audio record circuit (3), DTMF (touch-tone signal, as follows) transmission circuit (1), monitoring circuit (4), receive decoding circuit (5), drive circuit of indicator (9), dislodging machine control circuit (10), multi-way switch circuit (14), photoelectricity is isolated and driving circuit (16), steal line detection circuit (11), ring detecting circuit (12), single chip machine controlling circuit (7), break detection circuit (17), power circuit (13), it is characterized in that:

A, also the keyboard that is connected with single chip machine controlling circuit (7) respectively and Interrupt Process circuit (2), interrupt clear circuit (6), lattice graphics lcd Chinese character display circuit (8) are set, interrupt clear circuit (6) also connects break detection circuit (17) respectively, steals line detection circuit (11), keyboard and Interrupt Process circuit (2); The doorbell call circuit (15) that setting and keyboard are connected with Interrupt Process circuit (2); The remote telephone circuit (19) that is connected with photoelectricity isolation and driving circuit (16) is set; The wireless receiving circuit (20) that setting and reception decoding circuit (5) are connected;

B, in DTM transmission circuit (1), be provided with concentrated audio amplifier circuit (IC5);

In single chip machine controlling circuit (7), be provided with the programmable address decoder (IC3) of exportable E signal;

In power circuit (13), be provided with circuit for generating negative voltage;

Break detection circuit (17) is provided with voltage comparator, follower connects step by step.

2, intelligent anti-theft alarm device according to claim 1, it is characterized in that: keyboard and Interrupt Process circuit (2) are provided with 4 * 4 keyboards of latch (IC8), driver (IC10) formation, also be provided with and the function key that is connected with door (IC17), each look-at-me is passed through and door (IC17) Xiang Yuhou, delivers to the interruptive port of single-chip microcomputer (IC1).

3, intelligent anti-theft alarm device according to claim 1, it is characterized in that: interrupt clear circuit (6) is provided with D flip-flop (IC13) and connects phase inverter (IC9A, IC9B) respectively, and the clear signal of D flip-flop (IC13) connects the output port or the Extended Capabilities Port of single-chip microcomputer (IC1) respectively.

4, intelligent anti-theft alarm device according to claim 1, it is characterized in that: doorbell call circuit (15) is provided with acoustic control hands-free phone circuit (IC27), low-power audio amplifier (IC25), the pin 1 of the pin 3 of circuit (IC27), amplifier (1C25) all link to each other with the control pin (ML) of the relay (J2) of dislodging machine control circuit 10;

Remote telephone circuit (19) is provided with relay (J3), and the field coil of this relay is isolated with photoelectricity and the Darlington chip for driving (IC23) of driving circuit (16) is connected, and the contact of this relay is serially connected in socket, the plug loop.

5, intelligent anti-theft alarm device according to claim 1 is characterized in that: wireless receiving circuit (20) is connected and composed than shaping amplification circuit (III) step by step by selective frequency amplifier circuit (I), Armstrong circuit (II), voltage ratio.