CN2250606Y

CN2250606Y - Full automatic intelligent anti-theft alarm

Info

Publication number: CN2250606Y
Application number: CN 95218481
Authority: CN
Inventors: 李广联
Original assignee: HUADA ELECTRONIC FACTORY YUEXIU DISTRIC GUANGZHOU CITY
Current assignee: HUADA ELECTRONIC FACTORY YUEXIU DISTRIC GUANGZHOU CITY
Priority date: 1995-07-28
Filing date: 1995-07-28
Publication date: 1997-03-26
Anticipated expiration: 2005-07-28

Abstract

The utility model relates to a full automatic intelligent anti-theft alarm which is composed of a central processing unit CPU, an alarm interface circuit, a level switching circuit, a speech recording-replaying circuit, a telephone line interface circuit, a telephone line testing circuit, a power supply circuit, buttons, etc. When the alarm interface circuit receives an alarm sensing signal, each circuit can automatically complete the actions of bell sounding, telephone line switching on, telephone number transmitting and pager stations or preset alarm telephone calling to cause record alarm voice before hand to be sent out through the telephone lines to send alarm information to outdoor persons in time according the instruction sent out by the CPU.

Description

The full-automatic intelligent burglar alarm

The utility model is a kind of telephone line that utilizes, the full-automatic intelligent alarm of pointing out by predefined alarm call number, beeper number and to outdoor personnel.

At present, various burglar alarms are of a great variety, can only send chimes of doom when theft alarm takes place, and can not notify user outside in time, and function ratio is more single.

Order of the present utility model is to provide a kind of golden automated intelligent type alarm that utilizes telephone line to point out to outdoor personnel.

The utility model is achieved in that the full-automatic intelligent burglar alarm is by central processor CPU, the remote alarm interface circuit, level switching circuit, audio record circuit, telephone line interface circuit, the telephone wire testing circuit, power circuit and button are formed, the alarm signal output ends of remote alarm interface circuit is connected with the input of level switching circuit, the output of level switching circuit inserts CPU, the telephone wires signals output of telephone line interface circuit inserts the detection input by the telephone wire testing circuit of CPU control operation, the detection signal output is sent into CPU, the command signal that the instruction feedback of CPU is sent into the telephone wire testing circuit receives input, the outer signal output part feedback of dialling the number of telephone wire testing circuit takes back telephone line interface circuit, and the voice signal output of being controlled the audio record circuit of operation by CPU inserts telephone line interface circuit.The user can import alarm with outdoor alarm call number, mobile phone number and called number and alarm voice in advance by key board, in case have the warning transducing signal to report to the police, talk with the instruction that CPU is fed back and carried out to the various status detection of line according to transmission, the words line connection of telephone line interface circuit, the telephone wire testing circuit of the alarm voice of the working procedure control audio record circuit of being worked out by central processor CPU.

Fig. 1 is the housing front elevation of alarm.

Fig. 2 is the circuit block diagram of alarm.

Fig. 3 a-Fig. 3 e is the circuit theory diagrams of alarm.

Whole alarm is controlled by a central processor CPU, the working procedure of CPU is write by programmable device, after alarm receives the command signal that alarm sensor sends here, the instruction that the circuit each several part is sent here according to CPU, automatically finish the alarm bell sounding, connect telephone line, send telephone number, put through and notify from a phone call board or predefined alarm call (comprising mobile phone), and the alarm voice of typing in advance sent out by telephone wire, make outdoor personnel know that monitoring is local stolen.The front housing of alarm 1 is provided with digital keys 2, function button 3, charactron 4, power supply indicator 5, alarm lamp 6, record indicator 7.

When artificial destruction alarm circuit or when entering warning region, alarm sensor sends signal, be transported to main frame remote alarm interface circuit, level switching circuit converts the level signal of remote alarm interface circuit variation to CPU corresponding level signal, after CPU receives the alarm signal of sending here, according to working procedure, send command signal, circuit workings such as control alarm bell drive circuit, electronic switching circuit A and B, audio record circuit, reset circuit.Make alarm bell send the chimes of doom of sound intensity 80DB.Electronic switching circuit B connects telephone line interface circuit, and electronic switching circuit A connects telephone wire testing circuit U ₅, the telephone wire dialing tone is by the coupling transformer T in the telephone line interface circuit ₂, send into U ₅Detect, will detect data and send into CPU, differentiated by CPU, the signal that differentiation is obtained is sent U back to again ₅, select U ₅Transmitting data register in the middle of inner 5 registers, transmitting data register is at U ₅Inner the D-A converter is sent by the telephone number that 8 pin are deposited register inside through the line count device, amplifies through amplifier and delivers to telephone network, if the line is busy or the ring unanswered for the telephone number that is sent quilt, telephone wires signals is by transformer T ₂U is sent in coupling once more ₅Detect U ₅To detect data and send into CPU and differentiate again, send signal back to U ₅, U ₅Select inner receive data register or status register.Again drive electronic switching circuit A, repeat to send telephone number or with ring-back tone counting, if phone is put through U ₅To detect data and deliver to CPU, CPU sends command signal control sound circuit immediately and enters tone playing state, and sound amplifies through amplifier, by coupling transformer T ₂Send telephone network, make owner hear the alarm voice that the warning system main frame is sent out.Work as U ₅Three telephone numbers have been sent, and all put through three telephone sets, after sound circuit has all sent three groups of voice, program is finished, CPU sends command signal to reset circuit, sends pulse signal by reset circuit, and CPU is reset, charactron display flashing " L " (" L " expression main frame is in the monitoring state, receives the alarm signal of being sent here by alarm sensor at any time).Telephone line interface circuit is by coupling transformer T ₂Form.

1, charactron drive circuit.

The charactron drive circuit is by latch U ₇Form with charactron, by the command signal that CPU sends here, process U ₇Internal circuit amplifies, and it is luminous directly to drive charactron, shows CPU program running situation.

2, remote alarm interface circuit and level switching circuit:

The remote alarm interface circuit by 8 the tunnel independently divider resistance form, it is main frame and external 8 kinds of circuit that alarm sensor is connected, as long as alarm sensor is sent the level signal of variation here, this signal is through divider resistance, level switching circuit, convert the level signal of alarm interface variation to corresponding level signal with CPU, CPU sends the work of command signal control circuit each several part according to sending the alarm command signal here according to working procedure.Level switching circuit is by latch U ₁Constitute, it is to there being eight inputs.

3, audio record circuit:

Audio record circuit has been used recording of direct modeling amount signal and playback technology, need not A/D and D/A conversion, adopts E2ROM memory U ₉But,, have A without power supply long preservation information ₀-A ₇Totally 8 address wires are by CPU (P _0.0-P _0.7) eight data wires transfer out data, by latch U ₈, select audio record circuit U ₉Different address wires can be with voice segment control and multiple modes of operation, U ₉27 pin be connected with 10 pin of CPU, work as CPU ₁₀When pin is low level, be recording state, record indicator is bright, by MIC typing alarm voice.When the CPU pin is low level, be tone playing state, during warning, switch, voice are directly passed through amplifier U by switching circuit A _11cAmplify, through coupling transformer T ₂Deliver on the external telephone line.

4, alarm bell drive circuit:

Send command signal by CPU, through triode Q ₂, Q ₄Carry out power amplification, drive relay work, alarm bell sends chimes of doom.

5, electronic switching circuit A and B:

Joined by the electronic switching circuit A of CPU control and B and power circuit, switching circuit A is made up of triode Qs, and switching circuit B is by two-stage amplifier tube Q ₃, Q ₆Form with relay, during warning, CPU sends command signal simultaneously, the Qs conducting, and supply voltage Qs is added on telephone wire testing circuit and the operational amplifier, makes circuit enter normal operating conditions, Q ₃, Q ₆Two-stage is amplified, and drives relay work, and main frame and external telephone wire are connected, and carries telephone signal.When the line is busy or during the ring unanswered, switching circuit B can be by the CPU re-lighting.

6, telephone wire testing circuit U ₅

Telephone wire testing circuit U ₅, designing for detecting the telephone line operating state specially, the IC that selects for use is MT8880, telephone wires signals is through over-coupled transformer T ₂, capacitor C ₆, resistance R ₁₀Enter U ₅Crus secunda, U ₅1st, 2 pin are homophase and inverting inputs of amplifier, and 3 pin are gain ends of amplifier, also are the outputs of amplifier, and signal is through

U

₅1,2 pin amplify, carry out filtering in circuit inside, dialing tone suppresses, and enters receive data register behind high frequency group filter and the low frequency group filter, status register, control register A and B are respectively according to U ₅11,9 pin orders data/address bus data (14-17) are write transmitting data register or control register A or B, with the transmission of controlling 8 pin signals and the mode of operation of selecting circuit, perhaps receive 8 pin decoding datas and read on the data/address bus from receive data register.9,10,11,12 pin are input, o controller interface circuit, all with the Transistor-Transistor Logic level compatibility, 9 pin are read-write control signal inputs, send data with high or low level control register, be sent to CPU or be input in this circuit by the 14-17 pin, 11 pin are that register is selected input, specified data which kind of register of coming in and going out, input of 10 pin chip selection signals and Transistor-Transistor Logic level compatibility, 12 pin are system clock inputs.By detecting the telephone line signal, will detect data and send into CPU, differentiate by CPU, send command signal back to U again ₅, select U ₅Mode of operation and U ₅5 groups of registers, thereby realize detection to the telephone line operating state.

7, amplifier:

Amplifier circuit is by U ₁₁Operational amplifier is formed, and its effect is that the small-signal that sound circuit and telephone wire testing circuit are sent here is amplified, and makes it enough level signals and sends into telephone network.

8, reset circuit

Reset circuit is by 4060 counter U ₄, C ₃₁, C ₉, R ₄₀, D ₁₂, C ₂₂Deng composition, 9 pin of CPU are the RESET input mouth, must be when being sampled as high level double, just form once complete resetting, reset circuit has two processes: (1) rigidly connects energize, must carry out initialization to CPU, is beneficial to import new procedures, program is normally moved, and initializing circuit is by C ₃₁, R ₄₀, D ₁₂Form, cc is to C for the power circuit voltage U ₃₁Charging, voltage on 9 pin of CPU (because result of electric capacity charging) descend gradually from Uoc, and capacitance is big more, and the voltage on 9 pin descends slow more, this sufficiently long time adds two times in machine sampling period greater than the oscillator starting of oscillation time, and CPU is reset.(2) U ₄, C ₈, R ₁₈The circuit of forming is a counter circuit, and when the CPU program is finished, counter is also at continuous counting, and the count cycle, CPU can not be reset less than two machine sampling periods, at this moment, and by CPU ₂₈Pin is sent command signal, through C ₉, R ₄Integration produces the spike signal and sends into U ₄12 pin, make U ₄At first be reset U ₄14 pin become low level, C ₂₂Moment is discharged, U ₄Beginning is counting again, and 14 pin change high potential into from electronegative potential, to C ₂₂Charging, the count cycle is reset CPU greater than two machine sampling periods.Reenter program running top, enter monitor state, by U ₄Send into counting pulse signal, make charactron display flashing " L ", wait for the alarm signal that next alarm is sent here.

9, power circuit:

Power circuit divides high-pressure section and low-pressure section, the protective tube insurance is housed respectively, for improving the reliability of circuit working, adopt two groups of independence voltage stabilizing circuit power supplies, first group is that 8.4V mainly supplies with the bigger circuit of power consumption such as alarm bell drive circuit, alarm and external alarming horn, and second group is Vcc, main supply low-power consumption, require the circuit of stable operating voltage, as central processing unit, audio record circuit, telephone wire testing circuit, circuit such as operational amplifier.

10, central processor CPU:

CPU is commander, the actuator of one chip microcomputer, reads in user program by it, and execution command one by one, by eight arithmetic/logic units, regularly/control assembly, register and critical pieces such as program counter, pointer register form.

X ₁, X ₂Pin is respectively the I/O end of inverting amplifier in the one pole sheet, and its frequency range is 4-6MHz, and this machine adopts 6MHz, by C ₁, C ₂, quartz crystal T ₁Form clock oscillator, X ₂Be again the input of internal clock generator, drive internal clock generator and provide clock signal to main frame, (P _1.0-P _1.7) be one eight accurate two-way simultaneous I/O ports, directly be connected with operation keyboard, by pressing keyboard.Can deposit telephone number, password in, functions such as recording playback voice, startup main frame and Shutdown Hosts.

(1), (P _0.07-P _0.7) be the two-way simultaneous I/O port of eight open-drain, as the data input and output, these eight data wires according to different combinations respectively with audio record circuit, telephone wire testing circuit, charactron drive circuit, the remote alarm interface level switching circuit is connected, and is the chief component of circuit control.

(2), INT ₀, INT ₁, T ₀, T ₁Be eight accurate two-way simultaneous I/O ports with Promotion From Within circuit, ITN ₀Be outer 0 request, the INT of interrupting ₁ External interrupt 1 request.T ₀Timer/counter 0 external input terminals, T ₁Timer/counter 1 external input terminals.

(3), (P _2.0-P _2.2) be one eight and connect two-way simultaneous I/O port, be used to transmit the control information of high eight-bit address.

(4), 9 pin are that the RESET input mouth of CPU is connected with reset circuit, during effect (1) energized, must carry out initialization to CPU, are beneficial to import new procedures, guarantee the program regular event; (2) program running finishes, and reset circuit sends pulse square wave signal, and CPU is reset.

When receiving the alarm signal that alarm sends here, the INT of CPU ₁, T ₀, T ₁Send instruction immediately, send command signal according to the operation of program, make alarm bell send one minute chimes of doom of 80DB, electronic switching circuit A, B are opened, and make telephone wire testing circuit U ₅With amplifier U ₁Telephone line is connected in power supply simultaneously.The telephone wire dialing tone is by coupling transformer T ₂Send into telephone line testing circuit U ₅, U ₅After detecting telephone dial tones, on the one hand, telephone dial tones is left in the receive data register, on the other hand at U ₅13 pin level signal is delivered to CPU, analyze definite by CPU.By (P _2.0-P _2.2) eight accurate two-way simultaneous I/O ports, transmit eight bit address control informations to telephone wire testing circuit U ₅(9-12) pin, choose U ₅Inner transmitting data register, the telephone number that transmitting data register is deposited is from U ₅8 human hair combing wastes see off, if the telephone number that is sent by the line is busy or the ring unanswered, the telephone signal of telephone line input is by transformer T ₂U is arrived in coupling again ₅Detect, CPU will detect data by U ₅13 pin send, level signal is delivered to CPU, CPU analyzes definite, if telephone wire by the line is busy, CPU sends instruction and restarts electronic switching circuit A, repeats to receive the dialing tone and number process of sending out.By (P _2.0-P _2.2) transmit eight bit address control informations to U ₅(9-12) pin is chosen U ₅The internal state register carries out the ring-back tone meter, if phone is put through U ₅To detect data and deliver to CPU, CPU ₁₁Pin output low level signal, the control voice call enters tone playing state, and sound amplifies through amplifier, by coupling transformer T ₂Deliver to telephone network, make owner hear the warning language that the warning system main frame is sent out, after CPU sends dialing instruction and playback instruction, go out command signal,, reset circuit is resetted to CPU, finish alarm procedure one time to reset circuit by 28 human hair combing wastes.

The utility model volume is little, and cost is low, and use, easy to operate is specially adapted to family, office space and other unattended place and carries out remote phone, beeper warning.

Claims

1, a kind of full-automatic intelligent burglar alarm, it is characterized in that alarm is by central processor CPU, the remote alarm interface circuit, level switching circuit, audio record circuit, telephone line interface circuit, the telephone wire testing circuit, power circuit and connect strong the composition, the alarm signal output ends of remote alarm interface circuit is connected with the input of level switching circuit, the output of level switching circuit inserts CPU, the telephone wires signals output of telephone line interface circuit inserts the detection input by the telephone wire testing circuit of CPU control operation, the detection signal output is sent into CPU, the command signal that the instruction feedback of CPU is sent the telephone wire testing circuit back to receives input, the outer signal output part feedback of dialling the number of telephone wire testing circuit takes back telephone line interface circuit, and the voice signal output of being controlled the audio record circuit of operation by CPU inserts telephone line interface circuit.

2, full-automatic intelligent burglar alarm as claimed in claim 1, it is characterized in that the alarm housing is provided with charactron, power supply indicator, alarm lamp, record indicator and the recording microphone of button, demonstration CPU running status, also is provided with reset circuit, alarm bell drive circuit and charactron drive circuit in the alarm.

3, full-automatic intelligent burglar alarm as claimed in claim 1, the conducting that it is characterized in that telephone line interface circuit and telephone wire testing circuit are to be controlled by the switching circuit that CPU control triggers, and switching circuit is connected with power circuit with CPU respectively.

4, full-automatic intelligent burglar alarm as claimed in claim 3, it is characterized in that described switching circuit is two of A, B, control telephone line interface circuit and telephone wire testing circuit respectively, wherein, the switching circuit B of control telephone line interface circuit conducting can be by the CPU re-lighting.

5, full-automatic intelligent burglar alarm as claimed in claim 4 is characterized in that controlling the switching circuit B of telephone line interface circuit conducting by two-stage amplifier tube Q ₃, Q ₆Form with relay, the switching circuit A of control telephone wire testing circuit conducting is by triode Q ₃Form.

6, full-automatic intelligent burglar alarm as claimed in claim 5 is characterized in that the voltage output end of power circuit is added to the telephone wire testing circuit by the triode Qs among the switching circuit A.

7, full-automatic intelligent burglar alarm as claimed in claim 1 or 2, it is characterized in that power circuit by high and low two groups independently voltage-stabilizing output circuit form, the high-voltage output end access alarm bell drive circuit of power circuit, the circuit that the alarming horn power consumption is big, the low-voltage output of power circuit inserts CPU, audio record circuit, telephone wire testing circuit, computing amplification circuit low in energy consumption.

8, full-automatic intelligent burglar alarm as claimed in claim 1, it is characterized in that the remote alarm interface circuit have can external eight kinds of alarm sensors eight input ports, the remote alarm interface circuit correspondingly by eight the tunnel independently divider resistance constitute.

9, full-automatic intelligent burglar alarm as claimed in claim 1 is characterized in that telephone line interface circuit is by coupling transformer T ₂Constitute, the speech output signal of audio record circuit and telephone wire testing circuit outer dial the number signal after amplifier amplifies by coupling transformer T ₂Send into telephone line, the telephone line signal is through coupling transformer T ₂Sending into the telephone wire testing circuit detects.

10, as claim 1,2,3,4,5 or 6 described full-automatic intelligent burglar alarms, it is characterized in that the telephone wire testing circuit is made of the MT8880 chip with five groups of registers, level switching circuit is made of the latch with eight inputs, audio record circuit is to be made of the E2ROM memory with eight address wires, and reset circuit is by 4060 calculator U ₄, C ₃₁, C ₉, R ₄₀, R ₄, D ₁₂, C ₂₂, C ₈, R ₁₈Form, wherein, C ₃₁, R ₄₀, D ₁₂Form initializing circuit, U ₄, C ₈, R ₁₈Form counter circuit, C ₉, R ₄Form integrating circuit and make U ₄C on the reset terminal ₂₂Moment discharges and recharges, central processor CPU external one by capacitor C ₁, C ₂, quartz crystal T ₁The clock oscillator of forming, CPU has P _1.0-P _1.7Eight accurate two-way simultaneous I/O ports, direct with button, CPU also has P _0.07-P _0.7The two-way simultaneous I/O port of eight open-drain, as the data input and output, these eight data wires are connected with audio record circuit, telephone wire testing circuit, charactron drive circuit, level switching circuit respectively by different combinations, and CPU also has P _2.0-P _2.2Eight connect two-way simultaneous I/O port, are used to transmit the control information of high eight-bit address, and CPU also has eight accurate two-way simultaneous I/O ports of Promotion From Within circuit.