CN205263974U - Door and window intrusion alert system of lock accuse family - Google Patents
Door and window intrusion alert system of lock accuse family Download PDFInfo
- Publication number
- CN205263974U CN205263974U CN201521106574.3U CN201521106574U CN205263974U CN 205263974 U CN205263974 U CN 205263974U CN 201521106574 U CN201521106574 U CN 201521106574U CN 205263974 U CN205263974 U CN 205263974U
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- China
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- resistance
- nand gate
- door
- chip
- switch
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- Expired - Fee Related
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Abstract
The utility model discloses a door and window intrusion alert system of lock accuse family, including resistance R1, resistance R2, resistance R3, NAND gate U1, NAND gate U2 and NAND gate U3, resistance R1's one end connecting resistance R2, resistance R3, loudspeaker B, chip IC1's pin 5 and power VCC, resistance R1's the other end connect NAND gate U1's input and reed switch P1, resistance R2's other end linked switch S1 and another input of NAND gate U1, NAND gate U1's output connection NAND gate U2's an input. The utility model discloses door and window intrusion alert system of lock accuse family circuit structure is simple, components and parts are few, and only the invasion control to many places door and window has been realized to a circuit to whole circuit is controlled by door lock switch, and any one takes place the invasion and can send the chimes of doom promptly, consequently have with low costs, save space and convenient to use's advantage.
Description
Technical field
The utility model relates to a kind of warning system, specifically a kind of lock control family door and window intrusion alarm system.
Background technology
Along with improving constantly of living standard, people also more and more pay attention to household safety-protection, and especially some economic conditions are betterFamily, in family, deposit valuable jewellery, notebook computer, important working document etc., once there be burglar to invade possibilityCan cause great economic loss, therefore, a set of reliable and practical Household security system has become a lot of human needs. ButPresent safety-protection system all has a lot of limitation, and most of alarms all can only be arranged on a position, and control point only has oneIndividual, for some large-scale houses, there are multiple windows, just need to arrange multiple alarms, not only increase the one-tenth of arrangingThis, and operation inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of lock control family door and window intrusion alarm system, to solve in above-mentioned background technologyThe problem proposing.
For achieving the above object, the utility model provides following technical scheme:
A kind of lock control family door and window intrusion alarm system, comprises resistance R 1, resistance R 2, resistance R 3, NAND gate U1, with non-Door U2 and NAND gate U3, the pin 5 of one end contact resistance R2 of described resistance R 1, resistance R 3, loudspeaker B, chip IC 1With power supply VCC, the other end of resistance R 1 connects input and the reed switch P1 of NAND gate U1, resistance R 2 anotherAnother input of one end connecting valve S1 and NAND gate U1, the output of NAND gate U1 connects of NAND gate U2Input, another input of NAND gate U2 connects the output of NAND gate U3 and the pin 2 of chip IC 1, resistance R 3The other end connect another input and the button K of NAND gate U3, the other end of the other end connecting valve S1 of button K,The pin 3 of capacitor C 1, reed switch P3 and chip IC 1, reed switch P1, reed switch P2 and reed switch P3 comply withInferior being connected in series, the other end contact resistance R4 of capacitor C 1 and the pin 1 of chip IC 1, the pin 4 of chip IC 1 connectsThe base stage of triode V1, the colelctor electrode of triode V1 connects loudspeaker B, the other end of the other end contact resistance R4 of loudspeaker BAnd ground connection, the model of chip IC 1 is TWH8751.
As preferred version of the present utility model: described switch S 1 is door interlock switch.
Compared with prior art, the beneficial effects of the utility model are: the utility model lock control family door and window intrusion alarm systemCircuit structure is simple, components and parts are few, only has a circuit to realize the monitoring instruction to many places door and window, and whole circuit byDoor interlock switch control, invasion occurs for any one can send chimes of doom, therefore have cost low, save space and userJust advantage.
Brief description of the drawings
Fig. 1 is the circuit diagram of lock control family door and window intrusion alarm system.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearlyChu, intactly description, obviously, described embodiment is only the utility model part embodiment, instead of wholeEmbodiment. Based on the embodiment in the utility model, those of ordinary skill in the art are not making under creative work prerequisiteThe every other embodiment obtaining, belongs to the scope that the utility model is protected.
Refer to Fig. 1, a kind of lock control family door and window intrusion alarm system, comprise resistance R 1, resistance R 2, resistance R 3, withNot gate U1, NAND gate U2 and NAND gate U3, one end contact resistance R2 of described resistance R 1, resistance R 3, loudspeaker B, coreThe pin 5 of sheet IC1 and power supply VCC, the other end of resistance R 1 connects input and the reed switch P1 of NAND gate U1,The other end connecting valve S1 of resistance R 2 and another input of NAND gate U1, the output of NAND gate U1 connects with non-An input of door U2, another input of NAND gate U2 connects the output of NAND gate U3 and drawing of chip IC 1Pin 2, the other end of resistance R 3 connects another input and the button K of NAND gate U3, and the other end of button K connects to be openedClose the pin 3 of the other end, capacitor C 1, reed switch P3 and the chip IC 1 of S1, reed switch P1, reed switch P2P3 is connected in series successively with reed switch, the other end contact resistance R4 of capacitor C 1 and the pin 1 of chip IC 1, chipThe base stage of the pin 4 connecting triode V1 of IC1, the colelctor electrode of triode V1 connects loudspeaker B, and the other end of loudspeaker B connectsThe other end of connecting resistance R4 ground connection, the model of chip IC 1 is TWH8751.
Switch S 1 is door interlock switch.
Operation principle of the present utility model is: the switch S 1 in circuit is door interlock switch, and reed switch P1～P3 arranges respectivelyAt the hinge place of door and window, reed switch P1～P3 is closure state under normal circumstances, the NAND gate U2 in circuit andNAND gate U3 forms rest-set flip-flop, and when S1 is during in " locking a door " position, 2 inputs of NAND gate U1 are high level, byU1 directly reflects the state of reed switch P1～P3, if there is uninvited guest to invade, in P1～P3, has an open circuit,U1 output low level, (U2 is output as high level, (U3 is output as low level), respective chip to make rest-set flip-flop setGating end 2 pin of IC1 are low level, and its output 4 pin are high level, triode V1 conducting, and loudspeaker B sends chimes of doom.
In the time that S1 (normally opens door lock with key) in " opening the door " position, input 2 pin of U1 are low level, therebyThe input of U1 is shut, and rest-set flip-flop is reset (U2 is output as low level, and U3 output is non-is high level), respective chipGating end 2 pin of IC1 are high level, and alarm is not worked. Now, owner can optionally remove to employ door and window. Work as ownerAfter locking a door and leaving away, alarm can recover normal work automatically. Elimination when button K is used for false triggering is reported to the police.
Claims (2)
1. a lock control family door and window intrusion alarm system, comprise resistance R 1, resistance R 2, resistance R 3, NAND gate U1, withNot gate U2 and NAND gate U3, is characterized in that, one end contact resistance R2 of described resistance R 1, resistance R 3, loudspeaker B,The pin 5 of chip IC 1 and power supply VCC, the other end of resistance R 1 connects input and the reed switch of NAND gate U1P1, the other end connecting valve S1 of resistance R 2 and another input of NAND gate U1, the output of NAND gate U1 connectsAn input of NAND gate U2, another input of NAND gate U2 connects output and the chip IC 1 of NAND gate U3Pin 2, the other end of resistance R 3 connects another input and the button K of NAND gate U3, the other end of button K connectsConnect the pin 3 of the other end, capacitor C 1, reed switch P3 and the chip IC 1 of switch S 1, reed switch P1, reed switchP2 and reed switch P3 are connected in series successively, the other end contact resistance R4 of capacitor C 1 and the pin 1 of chip IC 1, coreThe base stage of the pin 4 connecting triode V1 of sheet IC1, the colelctor electrode of triode V1 connects loudspeaker B, the other end of loudspeaker BThe other end of contact resistance R4 ground connection, the model of chip IC 1 is TWH8751.
2. according to a kind of lock control claimed in claim 1 family door and window intrusion alarm system, it is characterized in that described switch S 1For door interlock switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521106574.3U CN205263974U (en) | 2015-12-28 | 2015-12-28 | Door and window intrusion alert system of lock accuse family |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521106574.3U CN205263974U (en) | 2015-12-28 | 2015-12-28 | Door and window intrusion alert system of lock accuse family |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205263974U true CN205263974U (en) | 2016-05-25 |
Family
ID=56005490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521106574.3U Expired - Fee Related CN205263974U (en) | 2015-12-28 | 2015-12-28 | Door and window intrusion alert system of lock accuse family |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205263974U (en) |
-
2015
- 2015-12-28 CN CN201521106574.3U patent/CN205263974U/en not_active Expired - Fee Related
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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: 20160525 Termination date: 20161228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |