CN102511983A - Anti-theft early warning device for wallet - Google Patents
Anti-theft early warning device for wallet Download PDFInfo
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- CN102511983A CN102511983A CN2012100080473A CN201210008047A CN102511983A CN 102511983 A CN102511983 A CN 102511983A CN 2012100080473 A CN2012100080473 A CN 2012100080473A CN 201210008047 A CN201210008047 A CN 201210008047A CN 102511983 A CN102511983 A CN 102511983A
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Abstract
The invention relates to an anti-theft early warning device for a wallet. The early warning device is composed of a 3-V direct-current power supply, a light-controlled circuit and a simulated sound generation circuit, wherein the type of a simulated sound generation integrated circuit IC1 is LCW06-2. The circuit of the early warning device is a light-controlled alarming device in essence; the early warning device is placed into a handbag of a woman so as to effectively stop an event of stealing the wallet or valuables in the handbag. Only if the ambient environment of the handbag owner has certain lights or lamplights and the like, the early warning device can immediately send out high-loudness siren sounds when a people opens the handbag, so that the anti-theft early warning device has better effects on deterring and frightening thieves.
Description
Technical field
The invention belongs to electronic technology and technical field of security and protection, is about a kind of wallet anti-theft prewarning apparatus.
Background technology
Wallet in woman's the handbag in tourist attractions, the stolen incidents in public place such as bus, store often take place, light then mood that influence is done shopping or played, weight losses is then most irredeemable.This prior-warning device comes down to a light control alarm device, prior-warning device is put in woman's the handbag, can stop the incident of interior wallet of stealing handbag or valuables to take place effectively.As long as the residing environment of bag people has certain light or has under the condition such as light, in case when having the people to open handbag, prior-warning device just can send the police whistle sound of high loudness immediately, can play good deterrence and threatening effect to the burglar.
Below specify this wallet anti-theft prewarning apparatus involved relevant technologies in implementation process.
Summary of the invention
Goal of the invention and beneficial effect: the circuit of this prior-warning device comes down to a light control alarm device, prior-warning device is put in woman's the handbag, can stop the incident of interior wallet of stealing handbag or valuables to take place effectively.As long as the residing environment of bag people has certain light or has under the condition such as light, in case when having the people to open handbag, prior-warning device just can send the police whistle sound of high loudness immediately, can play good deterrence and threatening effect to the burglar.
The circuit working principle: the wallet anti-theft prewarning apparatus is formed simulation police whistle sound sound generator by analog audio generation IC 1 with resistance R 1, electrochemical capacitor C1, loudspeaker YA, and photo resistance RG and NPN transistor VT1, resistance R 2 are formed light-operated switch.Handbag is not opened at ordinary times; Under the condition of unglazed photograph, the photo resistance RG in the circuit is high resistance, resistance value >=1M Ω; NPN transistor VT1 is in cut-off state; Analog audio generation IC 1 no electricity is not worked, and loudspeaker YA is sounding not, surveys the static power consumption electric current of complete machine＜6 μ A this moment.When handbag is opened by the people; Light shines on the photo resistance RG; The resistance value of photo resistance RG is reduced to about 10k Ω immediately; NPN transistor VT1 gets into conducting state at once, and analog audio generation IC 1 must be established beginning work by cable, and loudspeaker YA just can send the police whistle sound of high loudness " toot～".
Technical scheme: the wallet anti-theft prewarning apparatus, form by 3V dc source, light-operated circuit, analog audio generation circuit, it is characterized in that:
Light-operated circuit: form by photo resistance RG, NPN transistor VT1, resistance R 2; The anodal VCC of the end of photo resistance RG and the colelctor electrode connection circuit of NPN transistor VT1; The base stage of another termination NPN transistor VT1 of photo resistance RG and an end of resistance R 2, the other end connection circuit ground GND of resistance R 2;
Analog audio generation circuit: form by analog audio generation IC 1, resistance R 1, loudspeaker YA and electrochemical capacitor C1; The model that analog audio generation IC 1 adopts is LCW06-2; 5 pin of analog audio generation IC 1 connect the emitter stage of NPN transistor VT1 and the positive pole of electrochemical capacitor C1; 3 pin connection circuit ground GND of the negative pole of electrochemical capacitor C1 and analog audio generation IC 1; 4 pin of analog audio generation IC 1 connect the end of loudspeaker YA, the emitter stage of another termination NPN transistor VT1 of loudspeaker YA.
The anodal VCC of the anodal connection circuit of 3V dc source links to each other 3V dc power cathode connection circuit ground GND.
Description of drawings
The specific embodiment
Circuit working schematic diagram and description of drawings according to wallet anti-theft prewarning apparatus shown in the accompanying drawing 1; And according to the annexation between the components and parts in the described each several part circuit of summary of the invention, and the components and parts technical parameter described in the embodiment requires to implement to realize the present invention.
The selection of components and parts and technical parameter thereof
IC1 is an analog audio generation integrated circuit, requires to select 3 simulated sound warning integrated circuits for use, and its model is LCW06-2; It adopts biserial 8 pin straight cutting Plastic Package; Can produce 3 kinds of different simulation alarm sounds, inner integrated power amplifier can directly drive low-resistance loudspeaker sounding; 1 pin of analog audio generation IC 1 and 2 pin are external oscillation resistance, and the resistance of increase and decrease outer meeting resistance can change the sounding tone; Its 3 pin connects dc power cathode; 4 pin are audio output; 5 pin connect dc power anode; 6 pin and 7 pin are empty pin; 8 pin are sound collecting end; When 8 pin " unsettled " of IC1, can produce simulation police car electric whistle sound; When 8 pin connect dc power anode, can produce simulation fire fighting truck electric whistle sound; When 8 pin connect dc power cathode, can produce simulation ambulance electric whistle sound; The major parameter of LCW06-2: operating voltage range 3～4.5V, operating current＜150 μ A, maximum output current can reach 150mA;
VT1 is a NPN transistor, can select power transistor in 2SC9013 or the NPN types such as 3DG12,3DX201 for use, requires multiplication factor β＞120;
RG is photo resistance, can select the photo resistance of MG44-03 type resin-encapsulated for use, its light resistance≤5k Ω, dark resistance>=1M Ω;
Resistance is used the RTX-1/8W fixed carbon resister, and the resistance of resistance R 1, R2 is respectively 220K Ω, 30K Ω;
C1 is with CD11-10V type electrochemical capacitor, and capacity is 100 μ F;
Loudspeaker YA can use YD58-1 type 8 Ω, 0.25W dynamic speaker;
The voltage of dc source is 3V, and No. 7 batteries of available 2 joints are composed in series.
Circuit production main points and use
In when welding, the electric iron shell must the good earth line, in order to avoid the device of the induction of the alternating current on electric iron voltage breakdown CMOS IC interior at components and parts;
The good circuit board of welding is packed into together with loudspeaker YA, battery case in the suitable small plastic box of volume, opens a louver in the appropriate location of plastics box panel for loudspeaker YA.In the good position perforate of plastics box panel sensitization and fix photo resistance RG;
The circuit of prior-warning device need not carry out any debugging and get final product operate as normal.This prior-warning device must be installed 1 DC power supply switch in the handbag concealed location; In time spent not at ordinary times, work as the dc source of closing prior-warning device, when getting into crowded public place; Should open the power switch of this prior-warning device in advance, make prior-warning device be in the standby alert status all the time.
Claims (2)
1. a wallet anti-theft prewarning apparatus is made up of 3V dc source, light-operated circuit, analog audio generation circuit, it is characterized in that:
Light-operated circuit is made up of photo resistance RG, NPN transistor VT1, resistance R 2; The anodal VCC of the end of photo resistance RG and the colelctor electrode connection circuit of NPN transistor VT1; The base stage of another termination NPN transistor VT1 of photo resistance RG and an end of resistance R 2, the other end connection circuit ground GND of resistance R 2;
Analog audio generation circuit is made up of analog audio generation IC 1, resistance R 1, loudspeaker YA and electrochemical capacitor C1; The model that analog audio generation IC 1 adopts is LCW06-2; 5 pin of analog audio generation IC 1 connect the emitter stage of NPN transistor VT1 and the positive pole of electrochemical capacitor C1; 3 pin connection circuit ground GND of the negative pole of electrochemical capacitor C1 and analog audio generation IC 1; 4 pin of analog audio generation IC 1 connect the end of loudspeaker YA, the emitter stage of another termination NPN transistor VT1 of loudspeaker YA.
2. wallet anti-theft prewarning apparatus according to claim 1 is characterized in that: the anodal VCC of the anodal connection circuit of 3V dc source links to each other 3V dc power cathode connection circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100080473A CN102511983A (en) | 2012-01-03 | 2012-01-03 | Anti-theft early warning device for wallet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100080473A CN102511983A (en) | 2012-01-03 | 2012-01-03 | Anti-theft early warning device for wallet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102511983A true CN102511983A (en) | 2012-06-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100080473A Pending CN102511983A (en) | 2012-01-03 | 2012-01-03 | Anti-theft early warning device for wallet |
Country Status (1)
| Country | Link |
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| CN (1) | CN102511983A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103142008A (en) * | 2012-07-19 | 2013-06-12 | 叶如康 | Wallet |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2160240Y (en) * | 1993-05-29 | 1994-04-06 | 马随成 | Anti-theft electric shock suitcase |
| CN2263905Y (en) * | 1995-07-26 | 1997-10-08 | 梁宗善 | Electronic antitheft automatic alarming bag |
| CN201011723Y (en) * | 2007-01-09 | 2008-01-23 | 浙江大学 | Mobile phone anti-theft equipment |
| CN201126609Y (en) * | 2007-11-14 | 2008-10-01 | 方铁军 | Anti-theft alarming device |
| CN102499521A (en) * | 2011-11-01 | 2012-06-20 | 黄勇 | Wallet burglar alarm |
| CN202335494U (en) * | 2011-11-01 | 2012-07-18 | 黄勇 | Antitheft alarm for purse |
| CN202396650U (en) * | 2012-01-03 | 2012-08-29 | 王寅寅 | Anti-theft early warning device for wallet |
-
2012
- 2012-01-03 CN CN2012100080473A patent/CN102511983A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2160240Y (en) * | 1993-05-29 | 1994-04-06 | 马随成 | Anti-theft electric shock suitcase |
| CN2263905Y (en) * | 1995-07-26 | 1997-10-08 | 梁宗善 | Electronic antitheft automatic alarming bag |
| CN201011723Y (en) * | 2007-01-09 | 2008-01-23 | 浙江大学 | Mobile phone anti-theft equipment |
| CN201126609Y (en) * | 2007-11-14 | 2008-10-01 | 方铁军 | Anti-theft alarming device |
| CN102499521A (en) * | 2011-11-01 | 2012-06-20 | 黄勇 | Wallet burglar alarm |
| CN202335494U (en) * | 2011-11-01 | 2012-07-18 | 黄勇 | Antitheft alarm for purse |
| CN202396650U (en) * | 2012-01-03 | 2012-08-29 | 王寅寅 | Anti-theft early warning device for wallet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103142008A (en) * | 2012-07-19 | 2013-06-12 | 叶如康 | Wallet |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |