CN211180982U - Anti-theft alarm - Google Patents
Anti-theft alarm Download PDFInfo
- Publication number
- CN211180982U CN211180982U CN202020279383.1U CN202020279383U CN211180982U CN 211180982 U CN211180982 U CN 211180982U CN 202020279383 U CN202020279383 U CN 202020279383U CN 211180982 U CN211180982 U CN 211180982U
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- alarm
- circuit
- control circuit
- main control
- master control
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- 230000005611 electricity Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
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- Burglar Alarm Systems (AREA)
Abstract
The utility model discloses an anti-theft alarm, including master control circuit, infrared receiving circuit, alarm circuit and switch button are connected with the master control circuit electricity respectively, master control circuit detects key switch's behind the off-state, master control circuit control alarm circuit reports to the police, infrared receiving circuit is used for receiving infrared signal and exports to master control circuit, master control circuit still goes on or stops reporting to the police according to infrared signal control alarm circuit. The utility model provides a burglar alarm, it is simple to use reliable, do not influence customer's experience simultaneously and feel.
Description
Technical Field
The utility model relates to a show article theftproof technical field, specifically speaking relates to an burglar alarm.
Background
The existing digital products are concentrated in some large stores or exclusive shops and sold in a display and exhibition mode, general sellers can only provide models of the digital products for consumers to choose, and the method can only know the design of the products and cannot really experience the actual hand feeling and related functions of the commodities. In addition, some merchants use anti-theft glass cabinets to put the real machines in the cabinets for display, so that the taking is inconvenient, and the display cost is correspondingly increased (mainly the cost of the anti-theft cabinets).
Chinese patent 201120060458.8 discloses a display commodity burglar alarm, which comprises a single chip microcomputer, wherein the single chip microcomputer is respectively connected with a power supply circuit and an acousto-optic alarm response circuit, and the single chip microcomputer is further connected with a USB interface sensor circuit and a remote control receiving circuit. The disadvantages of this technique are: the display commodity needs to be connected with the alarm through a connecting wire, so that the display commodity is not only troublesome, but also the commodity experience of a customer is greatly reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an burglar alarm, it is simple to use reliable, do not influence customer's experience simultaneously and feel.
The utility model discloses a technical scheme that burglar alarm adopted is:
the utility model provides an anti-theft alarm, includes master control circuit, infrared receiving circuit, alarm circuit and switch button are connected with the master control circuit electricity respectively, after master control circuit detected being in the off-state of key switch, master control circuit control alarm circuit reports to the police, infrared receiving circuit is used for receiving infrared signal and exports to master control circuit, master control circuit still carries out or stops reporting to the police according to infrared signal control alarm circuit.
Preferably, the alarm circuit comprises a buzzer, a triode and a resistor R8, the base of the triode is connected with one end of the resistor R8, the other end of the resistor R8 is connected with the main control circuit, the emitter of the triode is grounded, and the collector of the triode is connected with the buzzer.
Preferably, the infrared receiving circuit comprises an infrared receiving head of a model HX 183B.
Preferably, the intelligent alarm device further comprises an alarm L ED connected with the main control circuit, and after the alarm circuit gives an alarm, the main control circuit controls the alarm L ED to flash.
Preferably, the alarm further comprises a button battery and an indicator L ED, wherein the indicator L ED is connected in parallel with the positive electrode and the negative electrode of the button battery, and the button battery is used for supplying power to the alarm.
The utility model discloses an burglar alarm's beneficial effect is: when the alarm is used, the key switch is pressed down to be in a closed state, and then the key switch in the closed state is attached to the display product, so that the key switch is kept in the closed state, the main control circuit detects that the key switch is in the closed state, the alarm cannot be given, and a customer can freely experience the display product; when the alarm moves to a detection point of a shopping mall along with the display article, such as an exit of the shopping mall, the infrared receiving circuit receives an infrared signal sent by the detection point, and the main control circuit controls the alarm circuit to give an alarm; or when the alarm is removed, the key switch is recovered, namely in a disconnected state, and the main control circuit controls the alarm circuit to alarm when detecting that the key switch is in the disconnected state; when the alarm circuit is triggered, the infrared signal can be transmitted by the remote controller to stop the alarm.
Drawings
Fig. 1 is a schematic circuit diagram of the burglar alarm of the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the following embodiments and drawings in which:
referring to fig. 1, the burglar alarm includes a main control circuit, an infrared receiving circuit, an alarm circuit, and a switch button, wherein the infrared receiving circuit, the alarm circuit, and the switch button are electrically connected to the main control circuit, the main control circuit controls the alarm circuit to alarm when detecting that the key switch is in an off state, the infrared receiving circuit is configured to receive an infrared signal and output the infrared signal to the main control circuit, and the main control circuit controls the alarm circuit to alarm or stop alarming according to the infrared signal.
When the alarm is used, the key switch is pressed down to be in a closed state, and then the key switch in the closed state is attached to the display product, so that the key switch is kept in the closed state, the main control circuit detects that the key switch is in the closed state, the alarm cannot be given, and a customer can freely experience the display product; when the alarm moves to a detection point of a shopping mall along with the display article, such as an exit of the shopping mall, the infrared receiving circuit receives an infrared signal sent by the detection point, and the main control circuit controls the alarm circuit to give an alarm; or when the alarm is removed, the key switch is recovered, namely in a disconnected state, and the main control circuit controls the alarm circuit to alarm when detecting that the key switch is in the disconnected state; when the alarm circuit is triggered, the infrared signal can be transmitted by the remote controller to stop the alarm.
And the alarm circuit alarms until the remote controller transmits infrared signals to stop alarming after being triggered.
The main control circuit comprises a control chip U1. infrared receiving circuit of model STM 8L 051FX and an infrared receiving head U2. of model HX183B, wherein the control chip and the infrared receiving head can select other models of products according to actual requirements.
The alarm circuit comprises a buzzer BEEP, a triode Q1 and a resistor R8, wherein the base electrode of the triode Q1 is connected with one end of the resistor R8, the other end of the resistor R8 is connected with the main control circuit, the emitting electrode of the triode Q1 is grounded, and the collecting electrode of the triode Q1 is connected with the buzzer. When an alarm is required, the main control circuit outputs a high level to the base electrode of the triode, and the triode is conducted to drive the buzzer to alarm.
The alarm further comprises an alarm L ED connected with the main control circuit, and after the alarm circuit gives an alarm, the main control circuit controls the alarm L ED to flash, and the sound alarm is matched with the light alarm to achieve a better effect.
The alarm further comprises a button battery BT1 and an indication L ED, wherein the indication L ED is connected in parallel with the positive electrode and the negative electrode of the button battery, and the button battery is used for supplying power to the alarm.
Because the alarm mainly comprises key switch SW, bee calling organ BEEP, infrared receiving head U2 and main control chip U1, consequently can make the whole volume of alarm less, after the volume reduction only need with the alarm paste on the show article can, use unusual convenience, can not influence the experience of customer to the show article yet. The alarm can be used for displays in shopping malls and can also be used for public products in other public places.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The anti-theft alarm is characterized by comprising a main control circuit, an infrared receiving circuit, an alarm circuit and a switch key, wherein the infrared receiving circuit, the alarm circuit and the switch key are respectively electrically connected with the main control circuit, the main control circuit detects that the key switch is in a disconnected state, the main control circuit controls the alarm circuit to alarm, the infrared receiving circuit is used for receiving infrared signals and outputting the infrared signals to the main control circuit, and the main control circuit controls the alarm circuit to alarm or stop alarming according to the infrared signals.
2. The burglar alarm according to claim 1, wherein said alarm circuit comprises a buzzer, a transistor and a resistor R8, wherein a base of said transistor is connected to one end of a resistor R8, another end of said resistor R8 is connected to said main control circuit, an emitter of said transistor is grounded, and a collector of said transistor is connected to said buzzer.
3. The burglar alarm of claim 1, wherein said infrared receiving circuit comprises an infrared receiving head of model HX 183B.
4. The burglar alarm of claim 1, further comprising an alarm L ED connected to the master control circuit, wherein the master control circuit controls the alarm L ED to flash after the alarm circuit alarms.
5. The burglar alarm of claim 1, further comprising a button cell and an indicator L ED, wherein the indicator L ED is connected in parallel to the positive and negative poles of the button cell, and the button cell is used for power supply of the alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020279383.1U CN211180982U (en) | 2020-03-09 | 2020-03-09 | Anti-theft alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020279383.1U CN211180982U (en) | 2020-03-09 | 2020-03-09 | Anti-theft alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211180982U true CN211180982U (en) | 2020-08-04 |
Family
ID=71804067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020279383.1U Expired - Fee Related CN211180982U (en) | 2020-03-09 | 2020-03-09 | Anti-theft alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211180982U (en) |
-
2020
- 2020-03-09 CN CN202020279383.1U patent/CN211180982U/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: 20200804 |