CN205829775U - A kind of mobile phone anti-theft circuit - Google Patents
A kind of mobile phone anti-theft circuit Download PDFInfo
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- CN205829775U CN205829775U CN201620768158.8U CN201620768158U CN205829775U CN 205829775 U CN205829775 U CN 205829775U CN 201620768158 U CN201620768158 U CN 201620768158U CN 205829775 U CN205829775 U CN 205829775U
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- circuit
- mobile phone
- signal processing
- alarm
- processing circuit
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Abstract
The utility model discloses a kind of mobile phone anti-theft circuit.It includes signal acquisition circuit, signal processing circuit and output circuit, and signal acquisition circuit is connected with output circuit by signal processing circuit, and described signal acquisition circuit is the voltage sensitive sensor being arranged on mobile phone；Described signal processing circuit uses three-stage amplifier；Described output circuit includes alarm and outfan, and the outfan of three-stage amplifier is connected with alarm.This utility model can carry out burglar alarm to mobile phone effectively, using effect is good, it is to avoid hand-set from stolen, practical.
Description
Technical field
This utility model relates to anti-theft circuit technical field, is specifically related to a kind of mobile phone anti-theft circuit.
Background technology
Along with socioeconomic development and the raising of people's living standard, mobile phone because of its practicality and the multiformity of function,
Become the necessary in people's life.And the thing followed is the puzzlement that mobile phone theft brings people, not only make the economy of people
Property incurs loss, and the individual privacy of people can not get protection.So, antitheft mobile phone also becomes what people more paid close attention to
Thing.
A kind of mobile phone anti-theft circuit of this utility model design.
Utility model content
For solving the problems referred to above, this utility model provides a kind of mobile phone anti-theft circuit, effectively can prevent mobile phone
Stealing and report to the police, using effect is good, it is to avoid hand-set from stolen, practical.
For achieving the above object, the technical scheme that this utility model is taked is: a kind of mobile phone anti-theft circuit, adopts including signal
Collector, signal processing circuit, output circuit and remote handset receiving terminal, signal acquisition circuit passes through signal processing circuit with defeated
Going out circuit to be connected, output circuit is connected with remote handset receiving terminal, and described signal acquisition circuit is the pressure being arranged on mobile phone
Dependent sensor；Described signal processing circuit uses three-stage amplifier；Described output circuit includes alarm and outfan,
The outfan of three-stage amplifier is connected with alarm.
As preferably, described alarm is audible-visual annunciator.
As preferably, described voltage sensitive sensor passes through pressure-responsive electric bridge and the signal processing circuit of three resistance compositions
It is connected.
This utility model has the advantages that and effectively mobile phone can be carried out burglar alarm, and using effect is good, it is to avoid
Hand-set from stolen, practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model and advantage clearer, below in conjunction with embodiment, this utility model is entered
Row further describes.Should be appreciated that specific embodiment described herein, and need not only in order to explain this utility model
In limiting this utility model.
As it is shown in figure 1, this utility model embodiment provides a kind of mobile phone anti-theft circuit, including signal acquisition circuit 1, letter
Number processing circuit 2, output circuit 3 and remote handset receiving terminal 4, signal acquisition circuit 1 is by signal processing circuit 2 and output electricity
Road 3 is connected, and output circuit 3 is connected with remote handset receiving terminal 4, and described signal acquisition circuit 1 is the pressure being arranged on mobile phone
Dependent sensor；Described signal processing circuit 2 uses three-stage amplifier；Described output circuit 3 includes alarm and output
End, the outfan of three-stage amplifier is connected with alarm.
It should be noted that described alarm is audible-visual annunciator.
Additionally, described voltage sensitive sensor passes through pressure-responsive electric bridge and the signal processing circuit phase of three resistance compositions
Even.
This detailed description of the invention realizes the circuit sensing to pressure.The realization of its function mainly utilizes voltage sensitive sensor to accept
The pressure that mobile phone receives, when voltage sensitive sensor is under pressure stimulation, then the balance of electric bridge will be broken.One will be produced
Faint voltage Ui.This weak voltage is input to process in circuit, i.e. three-stage amplifier, after Ui passes through two amplifiers,
Weak voltage through processing, it is sent to in-phase input end and the inverting input of the 3rd amplifier.The homophase of the 3rd amplifier and
The electric potential difference of inverting input can change, thus changes amplification voltage.Amplifier effect through the 3rd operational amplifier.?
Outfan produces a big voltage, and alarm can be powered, make alarm equipment alarm by this voltage.The big voltage produced is to people
Body also can produce stimulation.Thus produce anti-theft effect.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (3)
1. a mobile phone anti-theft circuit, it is characterised in that include signal acquisition circuit (1), signal processing circuit (2), output electricity
Road (3) and remote handset receiving terminal (4), signal acquisition circuit (1) is connected with output circuit (3) by signal processing circuit (2),
Output circuit (3) is connected with remote handset receiving terminal (4), and described signal acquisition circuit (1) is pressure-sensitive for be arranged on mobile phone
Sensor；Described signal processing circuit (2) uses three-stage amplifier；Described output circuit (3) includes alarm and defeated
Going out end, the outfan of three-stage amplifier is connected with alarm.
A kind of mobile phone anti-theft circuit the most according to claim 1, it is characterised in that described alarm is sound and light alarm
Device.
A kind of mobile phone anti-theft circuit the most according to claim 1, it is characterised in that described voltage sensitive sensor passes through three
The pressure-responsive electric bridge of resistance composition is connected with signal processing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620768158.8U CN205829775U (en) | 2016-07-20 | 2016-07-20 | A kind of mobile phone anti-theft circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620768158.8U CN205829775U (en) | 2016-07-20 | 2016-07-20 | A kind of mobile phone anti-theft circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205829775U true CN205829775U (en) | 2016-12-21 |
Family
ID=57561234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620768158.8U Active CN205829775U (en) | 2016-07-20 | 2016-07-20 | A kind of mobile phone anti-theft circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205829775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960540A (en) * | 2017-05-05 | 2017-07-18 | 陈世博 | A kind of safety monitoring system based on information technology |
-
2016
- 2016-07-20 CN CN201620768158.8U patent/CN205829775U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960540A (en) * | 2017-05-05 | 2017-07-18 | 陈世博 | A kind of safety monitoring system based on information technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |