CN105405231A - Intelligent antitheft system based on high-pass filtering circuit - Google Patents
Intelligent antitheft system based on high-pass filtering circuit Download PDFInfo
- Publication number
- CN105405231A CN105405231A CN201510976187.3A CN201510976187A CN105405231A CN 105405231 A CN105405231 A CN 105405231A CN 201510976187 A CN201510976187 A CN 201510976187A CN 105405231 A CN105405231 A CN 105405231A
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- pole
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- amplifier
- polar capacitor
- pass filtering
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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
- G08B13/1672—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19634—Electrical details of the system, e.g. component blocks for carrying out specific functions
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses an intelligent antitheft system based on a high-pass filtering circuit. The intelligent antitheft system is manly formed by a central processor, an image collector, a vibration sensor, a data storage device, a sound collector, a power supply, an alarm, and an image processing amplification circuit, wherein the vibration sensor, the data storage device, the sound collector, the power supply and the alarm are connected with the central processor; and the image processing amplification circuit is serially connected between the image collector and the central processor. The intelligent antitheft system is characterized in that a high-pass filtering circuit is also serially connected between the sound collector and the central processor; the image processing amplification circuit is formed by a processing chip U1, a signal receiving circuit and a filtering amplification circuit, wherein the signal receiving circuit and the filtering amplification circuit are connected with the processing chip U1; the input end of the signal receiving circuit is connected with the image collector; and the output end of the filtering amplification circuit is connected with the central processor. The intelligent antitheft system is capable of precisely recording images and sound during a stealing process, and providing precise and effective information for users and the police.
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 high-pass filtering 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 high-pass filtering circuit.
The present invention is achieved through the following technical solutions: a kind of intelligent anti-theft system based on high-pass filtering 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 sound collector and central processing unit, also high-pass filtering circuit is serially connected with.
Described high-pass filtering circuit is by amplifier P2, amplifier P3, diode D4, positive pole is connected with the P pole of diode D4 after resistance R10, the polar capacitor C7 that negative pole is connected with the output terminal of amplifier P2, positive pole is connected with the P pole of diode D4, negative pole is as the input end of high-pass filtering circuit and the polar capacitor C6 be connected with sound collector, positive pole is connected with the P pole of diode D4 after resistance R11 through resistance R13 in turn, the polar capacitor C9 that negative pole is connected with the negative pole of amplifier P3 after resistance R18, negative pole is connected with the output terminal of amplifier P2 after resistance R14, the polar capacitor C8 that positive pole is connected with the negative pole of amplifier P2 after resistance R12, P pole is connected with the output terminal of amplifier P2 after resistance R15, the diode D5 that N pole is connected with the positive pole of amplifier P3, positive pole is connected with the P pole of diode D5 after resistance R16, the polar capacitor C10 that negative pole is connected with the output terminal of amplifier P3 after resistance R19, and P pole is connected with the output terminal of amplifier P3, the diode D6 that N pole is connected with the negative pole of polar capacitor C9 after resistance R17 forms, the N pole of described diode D4 is connected with the positive pole of amplifier P2, the plus earth of described polar capacitor C8, the output terminal of described amplifier P3 as high-pass filtering circuit output terminal and be connected with central processing unit.
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) voice signal that sound collector exports can filter by high-pass filtering circuit of the present invention, eliminates the undesired signal in this voice signal, improves the accuracy of the voice signal that sound collector exports.
(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 high-pass filtering circuit of the present invention.
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 high-pass filtering circuit between sound collector 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 EN pin of this QX9910M integrated chip is connected with vibration transducer, and NC pin is connected with alarm, BST pin is connected with data-carrier store, 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 as signal receiving circuit input end and be connected with image acquisition device.
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 amplifier P2, amplifier P3, resistance R10 for described high-pass filtering circuit, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, polar capacitor C6, polar capacitor C7, polar capacitor C8, polar capacitor C9, polar capacitor C10, diode D4, diode D5, and diode D6 forms.
During connection, the positive pole of polar capacitor C7 is connected with the P pole of diode D4 after resistance R10, negative pole is connected with the output terminal of amplifier P2.The positive pole of polar capacitor C6 is connected with the P pole of diode D4, negative pole as high-pass filtering circuit input end and be connected with sound collector.The positive pole of polar capacitor C9 is connected with the P pole of diode D4 after resistance R11 through resistance R13 in turn, negative pole is connected with the negative pole of amplifier P3 after resistance R18.The negative pole of polar capacitor C8 is connected with the output terminal of amplifier P2 after resistance R14, positive pole is connected with the negative pole of amplifier P2 after resistance R12.
The P pole of described diode D5 is connected with the output terminal of amplifier P2 after resistance R15, N pole is connected with the positive pole of amplifier P3.The positive pole of polar capacitor C10 is connected with the P pole of diode D5 after resistance R16, negative pole is connected with the output terminal of amplifier P3 after resistance R19.The P pole of diode D6 is connected with the output terminal of amplifier P3, N pole is connected with the negative pole of polar capacitor C9 after resistance R17.
The N pole of described diode D4 is connected with the positive pole of amplifier P2; The plus earth of described polar capacitor C8; The output terminal of described amplifier P3 as high-pass filtering circuit output terminal and be connected with the SET pin of QX9910M integrated chip.Operationally, the voice signal that sound collector exports can filter by high-pass filtering circuit, eliminates the undesired signal in this voice signal, improves the accuracy of the voice signal that sound collector exports in the present invention.
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, 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, described sound collector is for gathering all acoustic informations of safety cabinet peripheral extent, and gathered acoustic information is transferred to central processing unit after high-pass filtering circuit filtering process, 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 high-pass filtering 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 sound collector and central processing unit, be also serially connected with high-pass filtering circuit.
2. a kind of intelligent anti-theft system based on high-pass filtering circuit according to claim 1, it is characterized in that, described high-pass filtering circuit is by amplifier P2, amplifier P3, diode D4, positive pole is connected with the P pole of diode D4 after resistance R10, the polar capacitor C7 that negative pole is connected with the output terminal of amplifier P2, positive pole is connected with the P pole of diode D4, negative pole is as the input end of high-pass filtering circuit and the polar capacitor C6 be connected with sound collector, positive pole is connected with the P pole of diode D4 after resistance R11 through resistance R13 in turn, the polar capacitor C9 that negative pole is connected with the negative pole of amplifier P3 after resistance R18, negative pole is connected with the output terminal of amplifier P2 after resistance R14, the polar capacitor C8 that positive pole is connected with the negative pole of amplifier P2 after resistance R12, P pole is connected with the output terminal of amplifier P2 after resistance R15, the diode D5 that N pole is connected with the positive pole of amplifier P3, positive pole is connected with the P pole of diode D5 after resistance R16, the polar capacitor C10 that negative pole is connected with the output terminal of amplifier P3 after resistance R19, and P pole is connected with the output terminal of amplifier P3, the diode D6 that N pole is connected with the negative pole of polar capacitor C9 after resistance R17 forms, the N pole of described diode D4 is connected with the positive pole of amplifier P2, the plus earth of described polar capacitor C8, the output terminal of described amplifier P3 as high-pass filtering circuit output terminal and be connected with central processing unit.
3. a kind of intelligent anti-theft system based on high-pass filtering 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 high-pass filtering 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 high-pass filtering 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 high-pass filtering 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 high-pass filtering 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 high-pass filtering 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 |
|---|---|---|---|
| CN201510976187.3A CN105405231A (en) | 2015-12-22 | 2015-12-22 | Intelligent antitheft system based on high-pass filtering circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976187.3A CN105405231A (en) | 2015-12-22 | 2015-12-22 | Intelligent antitheft system based on high-pass filtering circuit |
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| CN105405231A true CN105405231A (en) | 2016-03-16 |
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| CN201510976187.3A Pending CN105405231A (en) | 2015-12-22 | 2015-12-22 | Intelligent antitheft system based on high-pass filtering circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155893A (en) * | 2017-12-23 | 2018-06-12 | 黄仕权 | For the pulse signal amplification method of wide bandgap semiconductor detector |
| CN108449072A (en) * | 2017-12-23 | 2018-08-24 | 黄仕权 | Pulse amplifying method for broad stopband II-VI group compound semiconductor detector |
-
2015
- 2015-12-22 CN CN201510976187.3A patent/CN105405231A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155893A (en) * | 2017-12-23 | 2018-06-12 | 黄仕权 | For the pulse signal amplification method of wide bandgap semiconductor detector |
| CN108449072A (en) * | 2017-12-23 | 2018-08-24 | 黄仕权 | Pulse amplifying method for broad stopband II-VI group compound semiconductor detector |
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Application publication date: 20160316 |