CN105427492A - Intelligent anti-theft system based on signal compensation circuit - Google Patents
Intelligent anti-theft system based on signal compensation circuit Download PDFInfo
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- CN105427492A CN105427492A CN201510971656.2A CN201510971656A CN105427492A CN 105427492 A CN105427492 A CN 105427492A CN 201510971656 A CN201510971656 A CN 201510971656A CN 105427492 A CN105427492 A CN 105427492A
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- resistance
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- amplifier
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
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Abstract
The invention discloses an intelligent anti-theft system based on a signal compensation circuit, which is mainly constituted of a central processor and an image collector as well as a vibration sensor, a data storage, a sound collector, a power source and an alarm connected to the central processor and an image processing amplification circuit connected in series between the image collector and the central processor, and is characterized in that a signal compensation circuit is also connected in series between the vibration sensor and the central processor; the image processing amplification circuit is constituted of a processing chip U1 as well as a signal receiving circuit and a filtering amplification circuit which are connected to the processing chip U1; an input end of the signal receiving circuit is connected to the image collector; and an output end of the filtering amplification circuit is connected to the central processor. The intelligent anti-theft system disclosed by the invention can accurately record images and sounds generated in a theft so as to provide accurate and effective information to users and public security organizations.
Description
Technical field
The present invention relates to the technical field of electronic equipment, specifically refer to a kind of intelligent anti-theft system based on signal compensation circuit.
Background technology
Existing safety cabinet is only limitted to sound and light alarm, does not well monitor for surrounding environment, when the stolen situation of generation safety cabinet, cannot record stolen process, affect recovering and solving a case of safety cabinet.The warning function of present safety cabinet is only limitted to report to the police at acousto-optic-electric, and little to the warning message of user, user can not understand the situation at safety cabinet scene well, and the effect of warning is little, and the potential safety hazard of safety cabinet is still very large.
Summary of the invention
The burglary-resisting system that the object of the invention is to overcome safety cabinet of the prior art cannot record the defect of stolen process, the invention provides a kind of intelligent anti-theft system based on signal compensation circuit.
The present invention is achieved through the following technical solutions: a kind of intelligent anti-theft system based on signal compensation circuit, primarily of central processing unit, image acquisition device, the vibration transducer be all connected with central processing unit, data-carrier store, sound collector, power supply and alarm, and be serially connected in the image procossing amplifying circuit composition between image acquisition device and central processing unit; Meanwhile, between vibration transducer and central processing unit, also signal compensation circuit is serially connected with.
Described signal compensation circuit is by triode VT3, amplifier P2, diode D4, positive pole is connected with the P pole of diode D4 after resistance R10, the polar capacitor C6 that negative pole is connected with the base stage of triode VT3, one end is connected with the base stage of triode VT3, the resistance R11 of other end ground connection, P pole is connected with the collector of triode VT3 after resistance R12, the diode D5 that N pole is connected with the negative pole of amplifier P2 after resistance R13, negative pole is connected with the emitter of triode VT3, the polar capacitor C7 that positive pole is connected with the N pole of diode D4 after resistance R15, one end is connected with the positive pole of polar capacitor C7, the resistance R14 that the other end is connected with the positive pole of amplifier P2, and negative pole is connected with the N pole of diode D4 after resistance R16, the polar capacitor C8 that positive pole is connected with the output terminal of amplifier P2 after resistance R17 forms, the output terminal of described amplifier P2 as signal compensation circuit output terminal and be connected with central processing unit, the minus earth of this amplifier P2, the base stage of described triode VT3 as signal compensation circuit input end and be connected with vibration transducer.
Described image procossing amplifying circuit is by process chip U1, and the signal receiving circuit be all connected with process chip U1 and filter amplification circuit form; The input end of described signal receiving circuit is connected with image acquisition device; The output terminal of described filter amplification circuit is then connected with central processing unit.
Described signal receiving circuit is by triode VT1, positive pole is connected with the IN pin of process chip U1 after resistance R2 through resistance R1 in turn, the polar capacitor C1 that negative pole is connected with the collector of triode VT1, positive pole is connected with the base stage of triode VT1, the polar capacitor C2 that negative pole is connected with the IN pin of process chip U1, positive pole is connected with the DIM pin of process chip U1 after inductance L, the polar capacitor C3 that negative pole is connected with the HYS pin of process chip U1 after resistance R4, and P pole is connected with the emitter of triode VT1 after resistance R3, the diode D1 that N pole is connected with the CS pin of process chip U1 after resistance R5 forms, the positive pole of described polar capacitor C3 is connected with the emitter of triode VT1, the emitter of described triode VT1 is as the input end of signal receiving circuit.
Described filter amplification circuit is by field effect transistor MOS1, triode VT2, amplifier P1, positive pole is connected with the LIM pin of process chip U1 after resistance R6, the polar capacitor C5 that negative pole is connected with the positive pole of amplifier P1, P pole is connected with the source electrode of field effect transistor MOS1 after resistance R7, the diode D3 that N pole is connected with the output terminal of amplifier P1 after resistance R9, positive pole is connected with the drain electrode of field effect transistor MOS1, the polar capacitor C4 of minus earth, and P pole is connected with the SNS pin of process chip U1, the diode D2 that N pole is connected with the base stage of triode VT2 after resistance R8 forms, the HG pin of described process chip U1 is connected with the grid of field effect transistor MOS1, the GND pin ground connection of this process chip U1, the collector of described triode VT2 is connected with the positive pole of amplifier P1, and the emitter of this triode VT2 is then connected with the negative pole of amplifier P1, the output terminal of described amplifier P1 as filter amplification circuit output terminal and be connected with central processing unit.
For guaranteeing practical effect of the present invention, described image acquisition device preferentially adopts TR350 type infrared pick-up head to realize; And vibration transducer preferentially adopts BM7008 type vibration transducer to realize; Sound collector then preferentially adopts VCA-1008 type sound collector to realize simultaneously.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) signal compensation circuit of the present invention can compensate the signal attenuation in the process of vibration transducer signal transmission, ensure that the signal that vibration transducer transmits in accuracy.
(2) image procossing amplifying circuit of the present invention can carry out anti-interference process to the image analoging signal collected that image acquisition device exports, the noise signal in this image analoging signal can also be eliminated, image analoging signal is converted to viewdata signal to carry out amplifying rear output simultaneously, ensure that the accuracy of intelligent anti-theft system of the present invention to image acquisition.
(3) present invention employs vibration transducer, the stable performance of this vibration transducer, highly sensitive, the advantages such as low price.
Accompanying drawing explanation
Fig. 1 is one-piece construction figure of the present invention.
Fig. 2 is the electrical block diagram of image procossing amplifying circuit of the present invention.
Fig. 3 is the electrical block diagram of the signal compensation circuit do not invented.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, the present invention is primarily of central processing unit, image acquisition device, the vibration transducer be all connected with central processing unit, data-carrier store, sound collector, power supply and alarm, be serially connected in the signal compensation circuit between vibration transducer and central processing unit, and be serially connected in the image procossing amplifying circuit composition between image acquisition device and central processing unit.Wherein, as shown in Figure 2, it is by process chip U1 for described image procossing amplifying circuit, and the signal receiving circuit be all connected with process chip U1 and filter amplification circuit form.
For guaranteeing reliability service of the present invention, described central processing unit preferentially adopts QX9910M integrated chip, and the NC pin of this QX9910M integrated chip is connected with alarm, and BST pin is connected with data-carrier store, SET pin is connected with sound collector, and VC pin is connected with power supply.Described power supply is 6V DC voltage, and this 6V DC voltage is that central processing unit is powered.
As shown in Figure 2, described signal receiving circuit by triode VT1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, polar capacitor C1, polar capacitor C2, polar capacitor C3, and diode D1 forms.
During connection, the positive pole of polar capacitor C1 is connected with the IN pin of process chip U1 after resistance R2 through resistance R1 in turn, negative pole is connected with the collector of triode VT1.The positive pole of polar capacitor C2 is connected with the base stage of triode VT1, negative pole is connected with the IN pin of process chip U1.The positive pole of polar capacitor C3 is connected with the DIM pin of process chip U1 after inductance L, negative pole is connected with the HYS pin of process chip U1 after resistance R4.The P pole of diode D1 is connected with the emitter of triode VT1 after resistance R3, N pole is connected with the CS pin of process chip U1 after resistance R5.The positive pole of described polar capacitor C3 is connected with the emitter of triode VT1; The emitter of described triode VT1 is as the input end of signal receiving circuit.
Further, described filter amplification circuit by field effect transistor MOS1, triode VT2, amplifier P1, resistance R6, resistance R7, resistance R8, resistance R9, polar capacitor C4, polar capacitor C5, diode D2, and diode D3 forms.
During connection, the positive pole of polar capacitor C5 is connected with the LIM pin of process chip U1 after resistance R6, negative pole is connected with the positive pole of amplifier P1.The P pole of diode D3 is connected with the source electrode of field effect transistor MOS1 after resistance R7, N pole is connected with the output terminal of amplifier P1 after resistance R9.The positive pole of polar capacitor C4 is connected with the drain electrode of field effect transistor MOS1, minus earth.The P pole of diode D2 is connected with the SNS pin of process chip U1, N pole is connected with the base stage of triode VT2 after resistance R8.
The HG pin of described process chip U1 is connected with the grid of field effect transistor MOS1, the GND pin ground connection of this process chip U1; The collector of described triode VT2 is connected with the positive pole of amplifier P1, and the emitter of this triode VT2 is then connected with the negative pole of amplifier P1; The output terminal of described amplifier P1 as filter amplification circuit output terminal and be connected with the IN pin of QX9910M integrated chip.
The present invention operationally, image procossing amplifying circuit can carry out anti-interference process to the face image simulating signal of the user collected that image acquisition device exports, the noise signal in this image analoging signal can also be eliminated, treated for image analoging signal chip U1 is converted to viewdata signal to be undertaken amplifying rear output by amplifier P1 simultaneously, ensure that the accuracy of this burglary-resisting system to image acquisition.
As shown in Figure 3, it is by triode VT3, amplifier P2, resistance R10, resistance R11 for described signal compensation circuit, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, polar capacitor C6, polar capacitor C7, diode D4, and diode D5 forms.
During connection, the positive pole of polar capacitor C6 is connected with the P pole of diode D4 after resistance R10, negative pole is connected with the base stage of triode VT3.One end of resistance R11 is connected with the base stage of triode VT3, other end ground connection.The P pole of diode D5 is connected with the collector of triode VT3 after resistance R12, N pole is connected with the negative pole of amplifier P2 after resistance R13.The negative pole of polar capacitor C7 is connected with the emitter of triode VT3, positive pole is connected with the N pole of diode D4 after resistance R15.One end of resistance R14 is connected with the positive pole of polar capacitor C7, the other end is connected with the positive pole of amplifier P2.The negative pole of polar capacitor C8 is connected with the N pole of diode D4 after resistance R16, positive pole is connected with the output terminal of amplifier P2 after resistance R17.
The output terminal of described amplifier P2 as signal compensation circuit output terminal and be connected with the EN pin of QX9910M integrated chip, the minus earth of this amplifier P2; The base stage of described triode VT3 as signal compensation circuit input end and be connected with vibration transducer.Operationally, signal compensation circuit can compensate the signal attenuation in the process of vibration transducer signal transmission in the present invention, ensure that the signal that vibration transducer transmits in accuracy.
During operation, knock when there being people or moving silver cabinet time, the vibration signal of collection is transferred to central processing unit by described vibration transducer after signal compensation circuit, described central processing unit then exports and controls electric current to image acquisition device, described image acquisition device then preferentially adopts TR350 type infrared pick-up head to realize, this image acquisition device starts to gather image information after the control electric current obtaining central processing unit transmission, and gathered image information is carried out through image procossing amplifying circuit the viewdata signal that generates after signal conversion processes, this viewdata signal is transferred to data-carrier store and stores after central processing unit analysis identification.
Now, gathered acoustic information for gathering all acoustic informations of safety cabinet peripheral extent, and is transferred to central processing unit by described sound collector, and central processing unit then stores being transferred to data-carrier store after this acoustic information system.Described central processing unit exports and controls electric current to alarm while image acquisition device and sound collector are opened, and alarm starts to send chimes of doom.
For guaranteeing practical effect of the present invention, described and vibration transducer preferentially adopts BM7008 type vibration transducer to realize; Sound collector then preferentially adopts VCA-1008 type sound collector to realize simultaneously.As mentioned above, just the present invention can well be realized.
Claims (8)
1. the intelligent anti-theft system based on signal compensation circuit, primarily of central processing unit, image acquisition device, the vibration transducer be all connected with central processing unit, data-carrier store, sound collector, power supply and alarm, and be serially connected in the image procossing amplifying circuit composition between image acquisition device and central processing unit; It is characterized in that, between vibration transducer and central processing unit, be also serially connected with signal compensation circuit.
2. a kind of intelligent anti-theft system based on signal compensation circuit according to claim 1, it is characterized in that, described signal compensation circuit is by triode VT3, amplifier P2, diode D4, positive pole is connected with the P pole of diode D4 after resistance R10, the polar capacitor C6 that negative pole is connected with the base stage of triode VT3, one end is connected with the base stage of triode VT3, the resistance R11 of other end ground connection, P pole is connected with the collector of triode VT3 after resistance R12, the diode D5 that N pole is connected with the negative pole of amplifier P2 after resistance R13, negative pole is connected with the emitter of triode VT3, the polar capacitor C7 that positive pole is connected with the N pole of diode D4 after resistance R15, one end is connected with the positive pole of polar capacitor C7, the resistance R14 that the other end is connected with the positive pole of amplifier P2, and negative pole is connected with the N pole of diode D4 after resistance R16, the polar capacitor C8 that positive pole is connected with the output terminal of amplifier P2 after resistance R17 forms, the output terminal of described amplifier P2 as signal compensation circuit output terminal and be connected with central processing unit, the minus earth of this amplifier P2, the base stage of described triode VT3 as signal compensation circuit input end and be connected with vibration transducer.
3. a kind of intelligent anti-theft system based on signal compensation circuit according to claim 2, is characterized in that, described image procossing amplifying circuit is by process chip U1, and the signal receiving circuit be all connected with process chip U1 and filter amplification circuit form; The input end of described signal receiving circuit is connected with image acquisition device; The output terminal of described filter amplification circuit is then connected with central processing unit.
4. a kind of intelligent anti-theft system based on signal compensation circuit according to claim 3, it is characterized in that, described signal receiving circuit is by triode VT1, positive pole is connected with the IN pin of process chip U1 after resistance R2 through resistance R1 in turn, the polar capacitor C1 that negative pole is connected with the collector of triode VT1, positive pole is connected with the base stage of triode VT1, the polar capacitor C2 that negative pole is connected with the IN pin of process chip U1, positive pole is connected with the DIM pin of process chip U1 after inductance L, the polar capacitor C3 that negative pole is connected with the HYS pin of process chip U1 after resistance R4, and P pole is connected with the emitter of triode VT1 after resistance R3, the diode D1 that N pole is connected with the CS pin of process chip U1 after resistance R5 forms, the positive pole of described polar capacitor C3 is connected with the emitter of triode VT1, the emitter of described triode VT1 is as the input end of signal receiving circuit.
5. a kind of intelligent anti-theft system based on signal compensation circuit according to claim 4, it is characterized in that, described filter amplification circuit is by field effect transistor MOS1, triode VT2, amplifier P1, positive pole is connected with the LIM pin of process chip U1 after resistance R6, the polar capacitor C5 that negative pole is connected with the positive pole of amplifier P1, P pole is connected with the source electrode of field effect transistor MOS1 after resistance R7, the diode D3 that N pole is connected with the output terminal of amplifier P1 after resistance R9, positive pole is connected with the drain electrode of field effect transistor MOS1, the polar capacitor C4 of minus earth, and P pole is connected with the SNS pin of process chip U1, the diode D2 that N pole is connected with the base stage of triode VT2 after resistance R8 forms, the HG pin of described process chip U1 is connected with the grid of field effect transistor MOS1, the GND pin ground connection of this process chip U1, the collector of described triode VT2 is connected with the positive pole of amplifier P1, and the emitter of this triode VT2 is then connected with the negative pole of amplifier P1, the output terminal of described amplifier P1 as filter amplification circuit output terminal and be connected with central processing unit.
6. a kind of intelligent anti-theft system based on signal compensation circuit according to claim 5, is characterized in that, described image acquisition device is infrared pick-up head is TR350 type infrared pick-up head.
7. a kind of intelligent anti-theft system based on signal compensation circuit according to claim 6, is characterized in that, described vibration transducer is BM7008 type vibration transducer.
8. a kind of intelligent anti-theft system based on signal compensation circuit according to claim 7, is characterized in that, described sound collector is VCA-1008 type sound collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971656.2A CN105427492A (en) | 2015-12-22 | 2015-12-22 | Intelligent anti-theft system based on signal compensation circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971656.2A CN105427492A (en) | 2015-12-22 | 2015-12-22 | Intelligent anti-theft system based on signal compensation circuit |
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| CN105427492A true CN105427492A (en) | 2016-03-23 |
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| CN201510971656.2A Pending CN105427492A (en) | 2015-12-22 | 2015-12-22 | Intelligent anti-theft system based on signal compensation circuit |
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