CN206574202U - A kind of theft-proof alarm for balcony - Google Patents
A kind of theft-proof alarm for balcony Download PDFInfo
- Publication number
- CN206574202U CN206574202U CN201720221115.2U CN201720221115U CN206574202U CN 206574202 U CN206574202 U CN 206574202U CN 201720221115 U CN201720221115 U CN 201720221115U CN 206574202 U CN206574202 U CN 206574202U
- Authority
- CN
- China
- Prior art keywords
- pin
- balcony
- integrated chip
- alarm
- buzzer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Burglar Alarm Systems (AREA)
Abstract
The utility model provides a kind of theft-proof alarm for balcony, and the monostable flipflop and square-wave generator, triode and buzzer that the warning device is mainly made up of human body infrared induction module HC SR501,555 integrated chips are constituted.Human body infrared induction module HC SR501 are responsible for human testing, are invaded if it detects someone from balcony, just trigger monostable flipflop and enter temporary stable state, square-wave generator output square wave drives buzzer, and buzzer sends alarm, to threaten the intrusion behavior of thief.If thief withdraws, monostable flipflop recovers stable state after tens of seconds, and square-wave generator is stopped, and buzzer stops the sound.Therefore, the balcony of the present apparatus is mounted with, in the case where being fitted without metal anti-theft net, burglar alarm can be played a part of, and alarm can automatically reset.
Description
Technical field
The utility model is related to a kind of warning device, especially a kind of theft-proof alarm for balcony, belongs to electronic technology neck
Domain.
Background technology
In order to prevent thief from balcony burglary, many families are all mounted with anti-theft net in balcony, but balcony is mounted with
Anti-theft net, can influence attractive in appearance and sight, and anti-theft net price is also higher.How thief can be threatened again from sun without installing anti-theft net
A kind of platform burglary, utility model patent " theft-proof alarm for balcony " (patent No. 201520837040.1) provides a kind of anti-
Alarm is stolen, this alarm one finds that someone invades from balcony, just sends alarm, continue to invade to threaten thief.But this is reported
Alert device, one sends after alarm, will be continued for, it is necessary to which someone resets to it.
Utility model content
In order to solve the above problems, the utility model provides a kind of theft-proof alarm for balcony, and this warning device one is sent out
Existing people invades from balcony, just sends alarm, and alarm continues tens of seconds, is just automatically stopped, without manually being resetted to it.
The concrete technical scheme that the utility model is taken is as follows：
A kind of theft-proof alarm for balcony, it is characterized in that：The circuit of the device includes human body infrared induction module HC-
SR501, resistance R1~R4,555 integrated chip U1 and U2, electric capacity C1 and C2, triode Q1 and buzzer BUZ1, wherein human body are red
Outer induction module HC-SR501 1 pin connects+5V power supplys, 3 pin ground connection, 2 pin connecting resistance R1 one end；Triode Q1 base stage connects electricity
The resistance R1 other end, grounded emitter, colelctor electrode connecting resistance R2 one end and 555 integrated chip U1 2 pin, resistance R2's is another
Termination+5V power supplys；555 integrated chip U1 4 pin and 8 pin connect+5V power supplys, 1 pin ground connection, 6 pin and 7 pin connecting resistance R3 one end and
Electric capacity C1 positive pole, resistance R3 another termination+5V power supplys, electric capacity C1 negative pole ground connection, 555 integrated chip U1 3 pin connect 555
Integrated chip U2 4 pin；555 integrated chip U2 8 pin connect+5V power supplys, 1 pin ground connection, 2 pin and 6 pin connecting resistance R4 one end and
Electric capacity C2 positive pole, electric capacity C2 negative pole ground connection, 555 integrated chip U2 3 pin connecting resistance the R4 other end and buzzer BUZ1
Positive pole, buzzer BUZ1 negative pole ground connection.
The beneficial effects of the utility model are：A kind of theft-proof alarm for balcony, warning device finds that someone enters from balcony
Invade, just send alarm, threaten thief's invasion, alarm continues tens of seconds, is just automatically stopped, without manually being resetted to it.
Brief description of the drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
As shown in figure 1, this theft-proof alarm for balcony, it is characterized in that：
The circuit of this theft-proof alarm for balcony includes human body infrared induction module HC-SR501, resistance R1~R4,555 collection
Into the 1 of chip U1 and U2, electric capacity C1 and C2, triode Q1 and buzzer BUZ1, wherein human body infrared induction module HC-SR501
Pin connects+5V power supplys, 3 pin ground connection, 2 pin connecting resistance R1 one end；The triode Q1 base stage connecting resistance R1 other end, emitter stage connects
Ground, colelctor electrode connecting resistance R2 one end and 555 integrated chip U1 2 pin, resistance R2 another termination+5V power supplys；555 integrated cores
Piece U1 4 pin and 8 pin connect+5V power supplys, and 1 pin is grounded, the positive pole of 6 pin and 7 pin connecting resistance R3 one end and electric capacity C1, resistance R3's
Another termination+5V power supplys, electric capacity C1 negative pole ground connection, 555 integrated chip U1 3 pin connect 555 integrated chip U2 4 pin；555 collection
8 pin into chip U2 connect+5V power supplys, and 1 pin is grounded, the positive pole of 2 pin and 6 pin connecting resistance R4 one end and electric capacity C2, electric capacity C2's
Negative pole is grounded, 555 integrated chip U2 3 pin connecting resistance the R4 other end and buzzer BUZ1 positive pole, and buzzer BUZ1's is negative
Pole is grounded.
555 integrated chip U1 and its peripheral resistance capacitance element, constitute a timing tens of seconds, and temporary stable state is high electricity
Flat, stable state is low level monostable flipflop, and 555 integrated chip U2 reset terminal is delivered in the output of monostable flipflop, is controlled
Make 555 integrated chip U2 work；555 integrated chip U2 and its peripheral resistance capacitance element, which constitute a low-frequency square-wave, to be occurred
Device, its square-wave voltage exported can drive buzzer BUZ1 to send the rapid and rhythmical sound.
Balcony nobody when, human body infrared induction module HC-SR501 send out low level, it is anti-phase through Q1, send out high level give
555 integrated chip U1 2 pin, the monostable flipflop that 555 integrated chip U1 are constituted keeps output low level, 555 integrated cores
Piece U2 is in reset state, and it exports low level, and buzzer does not ring；One someone invades from balcony, human body infrared induction module HC-
SR501 sends out high level, anti-phase through Q1, sends out 2 pin of the low level to 555 integrated chip U1, and triggering monostable flipflop enters
Temporary stable state, monostable flipflop output high level delivers to 555 integrated chip U2 reset terminal, and the square-wave generator of U2 compositions starts
Vibration, makes buzzer send alarm；If thief withdraws, after tens of seconds, monostable flipflop recovers stable state, and square-wave generator stops
Only work, buzzer is stopped.
Claims (1)
1. a kind of theft-proof alarm for balcony, it is characterized in that：The circuit of the device include human body infrared induction module HC-SR501,
Resistance R1~R4,555 integrated chip U1 and U2, electric capacity C1 and C2, triode Q1 and buzzer BUZ1, wherein human body infrared sense
Module HC-SR501 1 pin connects+5V power supplys, 3 pin ground connection, 2 pin connecting resistance R1 one end；Triode Q1 base stage connecting resistance R1's
The other end, grounded emitter, colelctor electrode connecting resistance R2 one end and 555 integrated chip U1 2 pin, resistance R2 another termination+
5V power supplys；555 integrated chip U1 4 pin and 8 pin connect+5V power supplys, 1 pin ground connection, 6 pin and 7 pin connecting resistance R3 one end and electric capacity
C1 positive pole, resistance R3 another termination+5V power supplys, electric capacity C1 negative pole ground connection, it is integrated that 555 integrated chip U1 3 pin connect 555
Chip U2 4 pin；555 integrated chip U2 8 pin connect+5V power supplys, 1 pin ground connection, 2 pin and 6 pin connecting resistance R4 one end and electric capacity
C2 positive pole, electric capacity C2 negative pole ground connection, 555 integrated chip U2 3 pin connecting resistance the R4 other end and buzzer BUZ1 are just
Pole, buzzer BUZ1 negative pole ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720221115.2U CN206574202U (en) | 2017-03-08 | 2017-03-08 | A kind of theft-proof alarm for balcony |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720221115.2U CN206574202U (en) | 2017-03-08 | 2017-03-08 | A kind of theft-proof alarm for balcony |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206574202U true CN206574202U (en) | 2017-10-20 |
Family
ID=60057430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720221115.2U Expired - Fee Related CN206574202U (en) | 2017-03-08 | 2017-03-08 | A kind of theft-proof alarm for balcony |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206574202U (en) |
-
2017
- 2017-03-08 CN CN201720221115.2U patent/CN206574202U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171020 Termination date: 20190308 |