CN204010206U - Burglary prevention of laptop alarm - Google Patents
Burglary prevention of laptop alarm Download PDFInfo
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- CN204010206U CN204010206U CN201420467065.2U CN201420467065U CN204010206U CN 204010206 U CN204010206 U CN 204010206U CN 201420467065 U CN201420467065 U CN 201420467065U CN 204010206 U CN204010206 U CN 204010206U
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Abstract
Burglary prevention of laptop alarm, belongs to computer realm, and the utility model adopts the problem of the antitheft existence of physical locks for solving notebook.The utility model comprises that warning function start and stop arrange telepilot, alarm command radio receiver and alarm unit; Alarm command radio receiver and alarm unit are arranged on notebook; The coil of auxiliary reclay K is arranged in alarm command radio receiver, and the normally opened contact K-1 of auxiliary reclay K is arranged in alarm unit; Alarm command radio receiver receives the instruction that warning function start and stop arrange telepilot, for opening or close alarm unit; Receive while opening warning function instruction, the coil of auxiliary reclay K obtains electric; While receiving stop alarm function command, the coil losing electricity of auxiliary reclay K; As long as someone approaches or touches notebook, will be sensed by metal tablet P, trigger alarm, sends the alert enlightening sound of simulation, reminds in time owner that just someone approaches notebook, has stolen possibility.
Description
Technical field
The utility model relates to a kind of burglar alarm, belongs to computer realm.
Background technology
People, for ease of the mobile environment for use such as going on business, often select notebook, and notebook computer is than the superiority of desktop computer, can arbitrarily change environment for use, and volume is small and exquisite, are easy to carry, because its portable advantage, it is high that its cost ratio desktop computer is wanted.
Notebook has benefit easy to carry, but simultaneously also because its volume is small and exquisite and easily stolen, use in public notebook, it is antitheft that people adopt a kind of physical locks to carry out, the steel wire of general 1 meter of left and right, a headband has snap close, can be inserted in the side lockhole of notebook, other end is locked in around on fixed equipment, as fixed equipments such as table legs; But this physical locks not anti-person of low position that is also anti-gentleman, its steel wire is easy to be cut off and is easily stolen.
The existing anti-theft technique for desktop computer is relatively ripe, because fixing desktop computer position, anti-theft device designs, installs well, and warning starting switch can be arranged on concealed location, and a little less than anti-theft technique relative thin for notebook, can not apply mechanically the burglar alarm of desktop computer, unfixing because of the position of notebook, if apply mechanically desktop computer anti-theft technique, warning starting switch can only be arranged on the fuselage of notebook, but arrange easily and found by thief like this, and easily remove to report to the police, arrange.
Summary of the invention
The utility model object is the problem of the antitheft existence of physical locks that adopts in order to solve notebook, and a kind of burglary prevention of laptop alarm is provided.
Burglary prevention of laptop alarm described in the utility model, it comprises that warning function start and stop arrange telepilot, alarm command radio receiver and alarm unit; Alarm command radio receiver and alarm unit are arranged on notebook; The coil of auxiliary reclay K is arranged in alarm command radio receiver, and the normally opened contact K-1 of auxiliary reclay K is arranged in alarm unit; Alarm command radio receiver receives the instruction that warning function start and stop arrange telepilot, for opening or close alarm unit; Receive while opening warning function instruction, the coil of auxiliary reclay K obtains electric; While receiving stop alarm function command, the coil losing electricity of auxiliary reclay K;
Described alarm unit comprises NE555 time-base integrated circuit, CW9561 simulated sound integrated circuit, metal tablet P, nmos pass transistor VF, NPN triode VT1, NPN triode VT2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, slide rheostat Rp1, electrochemical capacitor C1, capacitor C 2, alarm lamp VL, voltage stabilizing diode Vs and loudspeaker BL;
The grid of nmos pass transistor VF connects tablet P, and the drain electrode of nmos pass transistor VF connects the base stage of NPN triode VT1 and a stiff end of slide rheostat Rp1 simultaneously;
Another stiff end of slide rheostat Rp1 connects one end of its sliding end, resistance R 1 simultaneously, one end of the anodal power supply terminal of 4 pin of one end of resistance R 2, NE555 time-base integrated circuit, 8 pin, loudspeaker BL and auxiliary reclay K normally opened contact K-1, the other end connection+6V direct supply of auxiliary reclay K normally opened contact K-1;
The other end of resistance R 1 connects the collector of NPN triode VT1 and 2 pin of NE555 time-base integrated circuit simultaneously;
The other end of resistance R 2 connects the positive pole of electrochemical capacitor C1,6 pin of NE555 time-base integrated circuit and 7 pin simultaneously;
5 pin of NE555 time-base integrated circuit connect one end of capacitor C 2;
3 pin of NE555 time-base integrated circuit connect the anode of alarm lamp VL and one end of resistance R 3 simultaneously; The other end of resistance R 3 connects the negative electrode of voltage stabilizing diode Vs and 3 pin of CW9561 simulated sound integrated circuit, parallel resistance R4 between 4 pin of CW9561 simulated sound integrated circuit and 5 pin simultaneously; 7 pin of CW9561 simulated sound integrated circuit connect the base stage of NPN triode VT2, and the collector of NPN triode VT2 connects the negative pole power supply terminal of loudspeaker BL;
8 pin of the emitter of NPN triode VT2, CW9561 simulated sound integrated circuit, the anode of voltage stabilizing diode Vs, the negative electrode of alarm lamp VL, the other end of 1 pin of NE555 time-base integrated circuit, capacitor C 2, the negative pole of electrochemical capacitor C1, the emitter of NPN triode VT1 and the source electrode of nmos pass transistor VF be ground connection simultaneously.
Advantage of the present utility model: burglary prevention of laptop alarm arrangement described in the utility model is simple; while needing burglar alarm protection; by telepilot opening anti-theft function; again telepilot is placed on to shelter; as long as someone approaches or touches notebook; will be sensed by metal tablet P; it is trigger alarm; send the alert enlightening sound of simulation, remind in time owner that just someone approaches notebook, have stolen possibility; simultaneously; audible alarm also allows thief panic, abandons notebook and runs away, and people's finance are not suffered a loss.Because the switch of opening anti-theft function is not arranged on the fuselage of notebook, thief can not find easily, can prevent that thief from eliminating warning function in advance, and allows warning function lose efficacy, and anti-theft effect is very good.
Accompanying drawing explanation
Fig. 1 is the physical circuit figure of burglary prevention of laptop alarm described in the utility model;
Fig. 2 is the physical circuit figure that warning function start and stop arrange telepilot;
Fig. 3 is the physical circuit figure of alarm command radio receiver.
Embodiment
Embodiment one: below in conjunction with Fig. 1 to Fig. 3, present embodiment is described, burglary prevention of laptop alarm described in present embodiment, it comprises that warning function start and stop arrange telepilot, alarm command radio receiver and alarm unit; Alarm command radio receiver and alarm unit are arranged on notebook; The coil of auxiliary reclay K is arranged in alarm command radio receiver, and the normally opened contact K-1 of auxiliary reclay K is arranged in alarm unit; Alarm command radio receiver receives the instruction that warning function start and stop arrange telepilot, for opening or close alarm unit; Receive while opening warning function instruction, the coil of auxiliary reclay K obtains electric; While receiving stop alarm function command, the coil losing electricity of auxiliary reclay K;
Described alarm unit comprises NE555 time-base integrated circuit, CW9561 simulated sound integrated circuit, metal tablet P, nmos pass transistor VF, NPN triode VT1, NPN triode VT2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, slide rheostat Rp1, electrochemical capacitor C1, capacitor C 2, alarm lamp VL, voltage stabilizing diode Vs and loudspeaker BL;
The grid of nmos pass transistor VF connects tablet P, and the drain electrode of nmos pass transistor VF connects the base stage of NPN triode VT1 and a stiff end of slide rheostat Rp1 simultaneously;
Another stiff end of slide rheostat Rp1 connects one end of its sliding end, resistance R 1 simultaneously, one end of the anodal power supply terminal of 4 pin of one end of resistance R 2, NE555 time-base integrated circuit, 8 pin, loudspeaker BL and auxiliary reclay K normally opened contact K-1, the other end connection+6V direct supply of auxiliary reclay K normally opened contact K-1;
The other end of resistance R 1 connects the collector of NPN triode VT1 and 2 pin of NE555 time-base integrated circuit simultaneously;
The other end of resistance R 2 connects the positive pole of electrochemical capacitor C1,6 pin of NE555 time-base integrated circuit and 7 pin simultaneously;
5 pin of NE555 time-base integrated circuit connect one end of capacitor C 2;
3 pin of NE555 time-base integrated circuit connect the anode of alarm lamp VL and one end of resistance R 3 simultaneously; The other end of resistance R 3 connects the negative electrode of voltage stabilizing diode Vs and 3 pin of CW9561 simulated sound integrated circuit, parallel resistance R4 between 4 pin of CW9561 simulated sound integrated circuit and 5 pin simultaneously; 7 pin of CW9561 simulated sound integrated circuit connect the base stage of NPN triode VT2, and the collector of NPN triode VT2 connects the negative pole power supply terminal of loudspeaker BL;
8 pin of the emitter of NPN triode VT2, CW9561 simulated sound integrated circuit, the anode of voltage stabilizing diode Vs, the negative electrode of alarm lamp VL, the other end of 1 pin of NE555 time-base integrated circuit, capacitor C 2, the negative pole of electrochemical capacitor C1, the emitter of NPN triode VT1 and the source electrode of nmos pass transistor VF be ground connection simultaneously.
As shown in Figure 2, warning function start and stop arrange telepilot and comprise warning start stop switch S, NE555 time-base integrated circuit, T630 wireless remote control emitting head, resistance R 5, resistance R 6, resistance R 7, slide rheostat Rp2, diode D1, diode D2, capacitor C 3 and capacitor C 4;
+ 12V direct supply connects one end of warning start stop switch S, and the other end of warning start stop switch S connects the anodal power supply terminal of T630 wireless remote control emitting head, 4 pin of one end of resistance R 5, NE555 time-base integrated circuit and 8 pin simultaneously; The other end of resistance R 5 connects a stiff end of slide rheostat Rp2, one end of another stiff end contact resistance R6 of slide rheostat Rp2; The movable end of slide rheostat Rp2 connects 7 pin of NE555 time-base integrated circuit and the anode of diode D1 simultaneously; The negative electrode of diode D1 connects the anode of diode D2,2 pin of one end of capacitor C 3, NE555 time-base integrated circuit and 6 pin simultaneously; The other end of the negative electrode contact resistance R6 of diode D2; 5 pin of NE555 time-base integrated circuit connect one end of capacitor C 4; One end of 3 pin contact resistance R7 of NE555 time-base integrated circuit, the other end of resistance R 7 connects the square wave oscillation signal input part of T630 wireless remote control emitting head; The negative pole power supply terminal of T630 wireless remote control emitting head connects the other end of the other end of capacitor C 4,1 pin of NE555 time-base integrated circuit and capacitor C 3 simultaneously, and ground connection; T630 wireless remote control emitting head is to air-launched square wave oscillation signal;
As shown in Figure 3, alarm command radio receiver comprises T631 wireless remote control Receiver, LM567 decoder ic, resistance R 8, capacitor C 5, capacitor C 6, capacitor C 7, diode D3, NPN triode VT3 and auxiliary reclay K; T631 wireless remote control Receiver receives the square wave oscillation signal of T630 wireless remote control emitting head transmitting;
+ 6V direct supply connects the anodal power supply terminal of T631 wireless remote control Receiver simultaneously, one end of the negative electrode of 4 pin of LM567 decoder ic, diode D3 and auxiliary reclay K coil; The square wave oscillation signal output part of T631 wireless remote control Receiver connects 3 pin of LM567 decoder ic, and 1 pin of LM567 decoder ic connects one end of capacitor C 5; 2 pin of LM567 decoder ic connect one end of capacitor C 6; One end of 5 pin contact resistance R8 of LM567 decoder ic; The other end of 6 pin while contact resistance R8 of LM567 decoder ic and one end of capacitor C 7; 8 pin of LM567 decoder ic connect the base stage of NPN triode VT3; The collector of NPN triode VT3 connects the anode of diode D3 and the other end of auxiliary reclay K coil; The emitter of NPN triode VT3 connect the other end of capacitor C 7 simultaneously, the other end of 7 pin of LM567 decoder ic, capacitor C 6, the negative pole power supply terminal of the other end of capacitor C 5 and T631 wireless remote control Receiver, and ground connection.
Principle of work: closed S, the square-wave oscillator work that NE555 and peripheral cell form, the square wave of output enters T630 by R9, through vibration square wave, after T630 modulation, to air-launched, goes out;
After this square wave is received by T631, it is amplified, after detection, Shape correction, sends into LM567 and carry out decoding processing, make the 8 pin output high level of LM567, VT3 conducting, auxiliary reclay K coil obtains electric, its normally opened contact K-1 is closed, performs the preparation of detection signal, warning.
When unmanned close notebook, the nmos pass transistor VF output low level that drains, NPN triode VT1 cut-off, 2 pin of NE555 time-base integrated circuit are high level, it is now steady state (SS), 3 pin output low levels of NE555 time-base integrated circuit, power end 3 pin of CW9561 must not be electric, do not drive loudspeaker BL work.When people approaches notebook, when preparation is opened notebook or takes notebook away, because human body is near tablet P, human body sensing electric field makes nmos pass transistor VF that pinch off occur, drain potential raises, NPN triode VT1 conducting, its collector is that 2 pin level of NE555 time-base integrated circuit decline, when be down to operating voltage 1/3 time, monostalbe trigger enters transient state, be 3 pin output high level of NE555 time-base integrated circuit, to CW9561, provide working power, drive loudspeaker BL to carry out audible alarm, CW9561 is simulated sound integrated circuit, can sound the alarm, blast of whistle, police car sound and machine gun sound, there is very much fright power.
Chimes of doom is used for reminding owner and deterrence thief, if want, cancels and reporting to the police, and can only find warning function start and stop that telepilot is set by owner, and disconnecting warning start stop switch S could realize.
Claims (2)
1. burglary prevention of laptop alarm, is characterized in that, it comprises that warning function start and stop arrange telepilot, alarm command radio receiver and alarm unit; Alarm command radio receiver and alarm unit are arranged on notebook; The coil of auxiliary reclay K is arranged in alarm command radio receiver, and the normally opened contact K-1 of auxiliary reclay K is arranged in alarm unit; Alarm command radio receiver receives the instruction that warning function start and stop arrange telepilot, for opening or close alarm unit; Receive while opening warning function instruction, the coil of auxiliary reclay K obtains electric; While receiving stop alarm function command, the coil losing electricity of auxiliary reclay K;
Described alarm unit comprises NE555 time-base integrated circuit, CW9561 simulated sound integrated circuit, metal tablet P, nmos pass transistor VF, NPN triode VT1, NPN triode VT2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, slide rheostat Rp1, electrochemical capacitor C1, capacitor C 2, alarm lamp VL, voltage stabilizing diode Vs and loudspeaker BL;
The grid of nmos pass transistor VF connects tablet P, and the drain electrode of nmos pass transistor VF connects the base stage of NPN triode VT1 and a stiff end of slide rheostat Rp1 simultaneously;
Another stiff end of slide rheostat Rp1 connects one end of its sliding end, resistance R 1 simultaneously, one end of the anodal power supply terminal of 4 pin of one end of resistance R 2, NE555 time-base integrated circuit, 8 pin, loudspeaker BL and auxiliary reclay K normally opened contact K-1, the other end connection+6V direct supply of auxiliary reclay K normally opened contact K-1;
The other end of resistance R 1 connects the collector of NPN triode VT1 and 2 pin of NE555 time-base integrated circuit simultaneously;
The other end of resistance R 2 connects the positive pole of electrochemical capacitor C1,6 pin of NE555 time-base integrated circuit and 7 pin simultaneously;
5 pin of NE555 time-base integrated circuit connect one end of capacitor C 2;
3 pin of NE555 time-base integrated circuit connect the anode of alarm lamp VL and one end of resistance R 3 simultaneously; The other end of resistance R 3 connects the negative electrode of voltage stabilizing diode Vs and 3 pin of CW9561 simulated sound integrated circuit, parallel resistance R4 between 4 pin of CW9561 simulated sound integrated circuit and 5 pin simultaneously; 7 pin of CW9561 simulated sound integrated circuit connect the base stage of NPN triode VT2, and the collector of NPN triode VT2 connects the negative pole power supply terminal of loudspeaker BL;
8 pin of the emitter of NPN triode VT2, CW9561 simulated sound integrated circuit, the anode of voltage stabilizing diode Vs, the negative electrode of alarm lamp VL, the other end of 1 pin of NE555 time-base integrated circuit, capacitor C 2, the negative pole of electrochemical capacitor C1, the emitter of NPN triode VT1 and the source electrode of nmos pass transistor VF be ground connection simultaneously.
2. burglary prevention of laptop alarm according to claim 1, it is characterized in that, warning function start and stop arrange telepilot and comprise warning start stop switch S, NE555 time-base integrated circuit, T630 wireless remote control emitting head, resistance R 5, resistance R 6, resistance R 7, slide rheostat Rp2, diode D1, diode D2, capacitor C 3 and capacitor C 4;
+ 12V direct supply connects one end of warning start stop switch S, and the other end of warning start stop switch S connects the anodal power supply terminal of T630 wireless remote control emitting head, 4 pin of one end of resistance R 5, NE555 time-base integrated circuit and 8 pin simultaneously; The other end of resistance R 5 connects a stiff end of slide rheostat Rp2, one end of another stiff end contact resistance R6 of slide rheostat Rp2; The movable end of slide rheostat Rp2 connects 7 pin of NE555 time-base integrated circuit and the anode of diode D1 simultaneously; The negative electrode of diode D1 connects the anode of diode D2,2 pin of one end of capacitor C 3, NE555 time-base integrated circuit and 6 pin simultaneously; The other end of the negative electrode contact resistance R6 of diode D2; 5 pin of NE555 time-base integrated circuit connect one end of capacitor C 4; One end of 3 pin contact resistance R7 of NE555 time-base integrated circuit, the other end of resistance R 7 connects the square wave oscillation signal input part of T630 wireless remote control emitting head; The negative pole power supply terminal of T630 wireless remote control emitting head connects the other end of the other end of capacitor C 4,1 pin of NE555 time-base integrated circuit and capacitor C 3 simultaneously, and ground connection; T630 wireless remote control emitting head is to air-launched square wave oscillation signal;
Alarm command radio receiver comprises T631 wireless remote control Receiver, LM567 decoder ic, resistance R 8, capacitor C 5, capacitor C 6, capacitor C 7, diode D3, NPN triode VT3 and auxiliary reclay K; T631 wireless remote control Receiver receives the square wave oscillation signal of T630 wireless remote control emitting head transmitting;
+ 6V direct supply connects the anodal power supply terminal of T631 wireless remote control Receiver simultaneously, one end of the negative electrode of 4 pin of LM567 decoder ic, diode D3 and auxiliary reclay K coil; The square wave oscillation signal output part of T631 wireless remote control Receiver connects 3 pin of LM567 decoder ic, and 1 pin of LM567 decoder ic connects one end of capacitor C 5; 2 pin of LM567 decoder ic connect one end of capacitor C 6; One end of 5 pin contact resistance R8 of LM567 decoder ic; The other end of 6 pin while contact resistance R8 of LM567 decoder ic and one end of capacitor C 7; 8 pin of LM567 decoder ic connect the base stage of NPN triode VT3; The collector of NPN triode VT3 connects the anode of diode D3 and the other end of auxiliary reclay K coil; The emitter of NPN triode VT3 connect the other end of capacitor C 7 simultaneously, the other end of 7 pin of LM567 decoder ic, capacitor C 6, the negative pole power supply terminal of the other end of capacitor C 5 and T631 wireless remote control Receiver, and ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467065.2U CN204010206U (en) | 2014-08-19 | 2014-08-19 | Burglary prevention of laptop alarm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467065.2U CN204010206U (en) | 2014-08-19 | 2014-08-19 | Burglary prevention of laptop alarm |
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| Publication Number | Publication Date |
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| CN204010206U true CN204010206U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420467065.2U Expired - Fee Related CN204010206U (en) | 2014-08-19 | 2014-08-19 | Burglary prevention of laptop alarm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110889945A (en) * | 2019-11-20 | 2020-03-17 | 黑龙江电力调度实业有限公司 | Human body proximity induction alarm based on Internet of things |
-
2014
- 2014-08-19 CN CN201420467065.2U patent/CN204010206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110889945A (en) * | 2019-11-20 | 2020-03-17 | 黑龙江电力调度实业有限公司 | Human body proximity induction alarm based on Internet of things |
| CN110889945B (en) * | 2019-11-20 | 2021-12-07 | 黑龙江电力调度实业有限公司 | Human body proximity induction alarm based on Internet of things |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170819 |