CN203838832U - Calligraphy and painting works antitheft alarm in exhibition hall - Google Patents
Calligraphy and painting works antitheft alarm in exhibition hall Download PDFInfo
- Publication number
- CN203838832U CN203838832U CN201420272875.2U CN201420272875U CN203838832U CN 203838832 U CN203838832 U CN 203838832U CN 201420272875 U CN201420272875 U CN 201420272875U CN 203838832 U CN203838832 U CN 203838832U
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Abstract
A calligraphy and painting works antitheft alarm in an exhibition hall belongs to the field of computer control, and is to solve the problem that a high-strength glass window blocks the sight of people during famous paintings appreciating. The antitheft alarm comprises a concealed switch S, an infrared pipe VD, an AT138B infrared receiver, an LM555 time-base integrated circuit, a thyristor VTH, a horn BL, resistors R1-R4, slide rheostats Rp1,Rp2, capacitors C1-c3, a Not gate D and an NPN triode VT. When the exhibition hall is closed and antitheft alarm protection is needed, the concealed switch S is closed; when someone is approaching to the calligraphy and painting works, infrared rays emitted by the infrared pipe VD are reflected by the person, and the reflected infrared rays are sensed by the AT138B infrared receiver; the 3 pin of the AT138B infrared receiver outputs low level, the Not gate D is converted into high level, and a trigger voltage is provided for the control electrode of the thyristor VTH; and the thyristor VTH is connected, the horn BL rings and an alarm is given.
Description
Technical field
The utility model relates to exhibition center's painting and calligraphy pieces burglar alarm, belongs to computer control field.
Background technology
The old and new artist's the common mode of emerging of works is to put on display in exhibition center, allow people appreciate, reach the object of its publicity, these works wherein have plenty of peerless good work, priceless, can be painstakingly at antitheft square dough figurines, a kind of mode that costly works are often adopted is to be placed in windowpane, the glass material of employing is high-intensity, common strike cannot be smashed, but it is high that the problem of its existence is cost, the most important thing is to affect people's vision, do not see Chu.
Summary of the invention
The utility model object is to solve to adopt high strength glass window to stop that people see the problem of famous painting sight line, and a kind of low cost, effective antitheft exhibition center's painting and calligraphy pieces burglar alarm are provided.
Exhibition center described in the utility model painting and calligraphy pieces burglar alarm, it comprises hidden switch S, infrared tube VD, AT138B infrared remote receiver, LM555 time-base integrated circuit, thyristor VTH, loudspeaker BL, resistance R 1, resistance R 2, resistance R 3, resistance R 4, slide rheostat Rp1, slide rheostat Rp2, capacitor C 1, capacitor C 2, electrochemical capacitor C3, not gate D and NPN triode VT;
+ 6V direct supply connects one end of hidden switch S, and the other end of hidden switch S connects stiff end and the movable end thereof of 4 pin, 8 pin and the slide rheostat Rp1 of stiff end of positive pole, slide rheostat Rp2 of 1 pin, the electrochemical capacitor C3 of AT138B infrared remote receiver and movable end thereof, LM555 time-base integrated circuit simultaneously;
The negative pole of electrochemical capacitor C3 connects 2 pin of AT138B infrared remote receiver;
One end of another stiff end while contact resistance R1 of slide rheostat Rp1 and the anodal power supply terminal of loudspeaker BL, the negative pole power supply terminal of loudspeaker BL connects the anode of thyristor VTH; One end of the other end while contact resistance R2 of resistance R 1 and 7 pin of LM555 time-base integrated circuit, the other end of resistance R 2 connects one end of capacitor C 1,2 pin and 6 pin of LM555 time-base integrated circuit simultaneously;
5 pin of LM555 time-base integrated circuit connect one end of capacitor C 2;
One end of 3 pin contact resistance R4 of LM555 time-base integrated circuit, the other end of resistance R 4 connects the base stage of NPN triode VT, the collector of NPN triode VT connects the negative electrode of infrared tube VD, one end of the anodic bonding resistance R 3 of infrared tube VD, the other end of resistance R 3 connects another stiff end of slide rheostat Rp2;
3 pin of AT138B infrared remote receiver connect the input end of not gate D, and the output terminal of not gate D connects the control utmost point of thyristor VTH;
2 pin of 1 pin of the other end of thyristor VTH negative electrode, capacitor C 1, the other end of capacitor C 2, LM555 time-base integrated circuit, the emitter of NPN triode VT and AT138B infrared remote receiver ground connection simultaneously.
Advantage of the present utility model: exhibition center described in the utility model painting and calligraphy pieces burglar alarm is simple in structure, be arranged on the painting and calligraphy pieces back side or side concealed location all can, painting and calligraphy pieces daytime when normal exhibition, disconnects hidden switch, does not affect normal exhibition; When closing while needing burglar alarm protection behind shop; closed hidden switch; in the time having people near painting and calligraphy pieces; infrared detection is to information, trigger horns blared and report to the police, once and report to the police; even if thief leaves the infrared detection region of painting and calligraphy pieces; loudspeaker are still ringing always, until keeper closes just stop alarm of hidden switch, have realized effective warning.
Brief description of the drawings
Fig. 1 is the physical circuit figure of exhibition center described in the utility model painting and calligraphy pieces burglar alarm.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, painting and calligraphy pieces burglar alarm in exhibition center's described in present embodiment, it comprises hidden switch S, infrared tube VD, AT138B infrared remote receiver, LM555 time-base integrated circuit, thyristor VTH, loudspeaker BL, resistance R 1, resistance R 2, resistance R 3, resistance R 4, slide rheostat Rp1, slide rheostat Rp2, capacitor C 1, capacitor C 2, electrochemical capacitor C3, not gate D and NPN triode VT;
+ 6V direct supply connects one end of hidden switch S, and the other end of hidden switch S connects stiff end and the movable end thereof of 4 pin, 8 pin and the slide rheostat Rp1 of stiff end of positive pole, slide rheostat Rp2 of 1 pin, the electrochemical capacitor C3 of AT138B infrared remote receiver and movable end thereof, LM555 time-base integrated circuit simultaneously;
The negative pole of electrochemical capacitor C3 connects 2 pin of AT138B infrared remote receiver;
One end of another stiff end while contact resistance R1 of slide rheostat Rp1 and the anodal power supply terminal of loudspeaker BL, the negative pole power supply terminal of loudspeaker BL connects the anode of thyristor VTH; One end of the other end while contact resistance R2 of resistance R 1 and 7 pin of LM555 time-base integrated circuit, the other end of resistance R 2 connects one end of capacitor C 1,2 pin and 6 pin of LM555 time-base integrated circuit simultaneously;
5 pin of LM555 time-base integrated circuit connect one end of capacitor C 2;
One end of 3 pin contact resistance R4 of LM555 time-base integrated circuit, the other end of resistance R 4 connects the base stage of NPN triode VT, the collector of NPN triode VT connects the negative electrode of infrared tube VD, one end of the anodic bonding resistance R 3 of infrared tube VD, the other end of resistance R 3 connects another stiff end of slide rheostat Rp2;
3 pin of AT138B infrared remote receiver connect the input end of not gate D, and the output terminal of not gate D connects the control utmost point of thyristor VTH;
2 pin of 1 pin of the other end of thyristor VTH negative electrode, capacitor C 1, the other end of capacitor C 2, LM555 time-base integrated circuit, the emitter of NPN triode VT and AT138B infrared remote receiver ground connection simultaneously.
Principle of work:
Infrared tube VD and the pairing of AT138B infrared remote receiver are arranged on painting and calligraphy pieces side, and infrared tube VD is used for launching infrared ray, and AT138B infrared remote receiver, for receiving infrared-ray, can be operated in night.The small chip that other control assembly forms can be placed in the back side or other hidden place of painting and calligraphy pieces.
When painting and calligraphy pieces normal exhibition on daytime, disconnect hidden switch S, this warning function is not enabled, and does not affect normal exhibition; When closing while needing burglar alarm protection behind shop; closed hidden switch S; in the time having people near painting and calligraphy pieces, the infrared ray that infrared tube VD sends is reflected by this people, is detected by AT138B infrared remote receiver; 3 pin output low levels of AT138B infrared remote receiver; be high level by not gate D upset, provide trigger voltage, VTH conducting to the control utmost point of thyristor VTH; loudspeaker BL rings, and reports to the police.As long as+6V voltage exists, VTH is conducting always, loudspeaker BL rings always, unless found hidden switch S just can close, therefore, this anti-theft feature is very effective, even if robber leaves the surveyed area of VD, loudspeaker BL is also still reporting to the police, and effectively reminds security personnel or keeper to scene or takes appropriate measures.
LM555 and R1, R2, C1 form multivibrator, and multivibrator and resistance R 4 and NPN triode VT form the driving circuit of infrared tube VD.
Claims (1)
1. exhibition center's painting and calligraphy pieces burglar alarm, it is characterized in that, it comprises hidden switch S, infrared tube VD, AT138B infrared remote receiver, LM555 time-base integrated circuit, thyristor VTH, loudspeaker BL, resistance R 1, resistance R 2, resistance R 3, resistance R 4, slide rheostat Rp1, slide rheostat Rp2, capacitor C 1, capacitor C 2, electrochemical capacitor C3, not gate D and NPN triode VT;
+ 6V direct supply connects one end of hidden switch S, and the other end of hidden switch S connects stiff end and the movable end thereof of 4 pin, 8 pin and the slide rheostat Rp1 of stiff end of positive pole, slide rheostat Rp2 of 1 pin, the electrochemical capacitor C3 of AT138B infrared remote receiver and movable end thereof, LM555 time-base integrated circuit simultaneously;
The negative pole of electrochemical capacitor C3 connects 2 pin of AT138B infrared remote receiver;
One end of another stiff end while contact resistance R1 of slide rheostat Rp1 and the anodal power supply terminal of loudspeaker BL, the negative pole power supply terminal of loudspeaker BL connects the anode of thyristor VTH; One end of the other end while contact resistance R2 of resistance R 1 and 7 pin of LM555 time-base integrated circuit, the other end of resistance R 2 connects one end of capacitor C 1,2 pin and 6 pin of LM555 time-base integrated circuit simultaneously;
5 pin of LM555 time-base integrated circuit connect one end of capacitor C 2;
One end of 3 pin contact resistance R4 of LM555 time-base integrated circuit, the other end of resistance R 4 connects the base stage of NPN triode VT, the collector of NPN triode VT connects the negative electrode of infrared tube VD, one end of the anodic bonding resistance R 3 of infrared tube VD, the other end of resistance R 3 connects another stiff end of slide rheostat Rp2;
3 pin of AT138B infrared remote receiver connect the input end of not gate D, and the output terminal of not gate D connects the control utmost point of thyristor VTH;
2 pin of 1 pin of the other end of thyristor VTH negative electrode, capacitor C 1, the other end of capacitor C 2, LM555 time-base integrated circuit, the emitter of NPN triode VT and AT138B infrared remote receiver ground connection simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272875.2U CN203838832U (en) | 2014-05-27 | 2014-05-27 | Calligraphy and painting works antitheft alarm in exhibition hall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272875.2U CN203838832U (en) | 2014-05-27 | 2014-05-27 | Calligraphy and painting works antitheft alarm in exhibition hall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838832U true CN203838832U (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420272875.2U Expired - Fee Related CN203838832U (en) | 2014-05-27 | 2014-05-27 | Calligraphy and painting works antitheft alarm in exhibition hall |
Country Status (1)
| Country | Link |
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| CN (1) | CN203838832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333897A (en) * | 2015-11-24 | 2016-02-17 | 济南祥辰科技有限公司 | Target insect automatic monitor circuit |
-
2014
- 2014-05-27 CN CN201420272875.2U patent/CN203838832U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333897A (en) * | 2015-11-24 | 2016-02-17 | 济南祥辰科技有限公司 | Target insect automatic monitor circuit |
| CN105333897B (en) * | 2015-11-24 | 2018-07-10 | 济南祥辰科技有限公司 | A kind of target pest automatic monitoring circuit |
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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 |
Granted publication date: 20140917 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |