CN203503108U - Anti-interference cell phone detector - Google Patents
Anti-interference cell phone detector Download PDFInfo
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- CN203503108U CN203503108U CN201320665726.8U CN201320665726U CN203503108U CN 203503108 U CN203503108 U CN 203503108U CN 201320665726 U CN201320665726 U CN 201320665726U CN 203503108 U CN203503108 U CN 203503108U
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- base chip
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Abstract
The utility model discloses an anti-interference cell phone detector comprising a loudspeaker, first to thirteenth resistors, a battery, a switch, first to ninth capacitors, a time base chip, a first diode, a second diode, a triode, an amplifier, and an antenna. The anti-interference cell phone detector is simple in structure and good in interference immunity, and can detect transmission signals of any conversation, short message, and video even if the cell phone is in a mute mode; once the circuit detects radio frequency transmission signals from a power on cell phone, alarm sounds can be immediately sent out, and lighting warning is sent out.
Description
Technical field
The utility model relates to a kind of mobile phone detector, relates in particular to a kind of jamproof mobile phone detector.
Background technology
Mobile phone detector is to utilize mobile phone to practise fraud etc. and a kind of wireless signal detection instrument of making for examination hall examination.Present mobile phone detector is easy to disturbed, the operating frequency range of mobile communication is two frequency bands, transmission frequency has individual space with accepting between frequency, and common receiving device is to utilize radiowave that mobile phone sends to judge to have or not mobile phone, and it does not carry out demodulation to its signal.If place empty ripple (only having carrier wave the there is no modulation signal) transmitter of the mobile phone channel of middle low power in different orientation, so just have influence on the accuracy of sniffer, but do not affect the normal communication of mobile phone.
Utility model content
The purpose of this utility model provides a kind of jamproof mobile phone detector with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises loudspeaker, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11 resistance, the 12 resistance, the 13 resistance, battery, switch, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, time base chip, the first diode, the second diode, triode, amplifier and antenna, the negative pole of described battery is connected with the first end of described the first resistance, the second end while of described the first resistance and the first end of described loudspeaker, the first end of described the first electric capacity, the first end of described the second electric capacity, the earth terminal of base chip when described, the negative pole of described the first diode, the negative pole of described the second diode, the first end of described the 4th electric capacity is connected with the first end of described the 7th resistance, and the level output end of the second end of described loudspeaker base chip when described is connected, and the second end of described the first electric capacity is the discharge end of base chip when described simultaneously, when described, the thresholding end of base chip is connected with the first end of described the second resistance, the control end of the second end of described the second electric capacity base chip when described is connected, the positive pole of described battery is connected with the first end of described switch, the second end of described switch is connected with the first end of described the 3rd resistance, the second end while of described the 3rd resistance and the second end of described the second resistance, the voltage input end of base chip when described, the reset terminal of base chip when described, the first end of described the 4th resistance, the first end of described the 5th resistance is connected with the first end of described the tenth resistance, when described, the trigger end of base chip is connected with the first end of described the 3rd electric capacity with the second end of described the 4th resistance simultaneously, the second end of described the 3rd electric capacity is connected with the second end of described the 5th resistance and the collector of described triode simultaneously, the emitter of described triode is connected with the positive pole of described the second diode with the positive pole of described the first diode simultaneously, the base stage while of described triode and the second end of described the 4th electric capacity, described the 6th first end of resistance and the output terminal of described amplifier are connected, the compensation end of described amplifier is connected with the first end of described the 9th resistance, the second end of described the 9th resistance is connected with the first end of described the 5th electric capacity, the second end of described the 5th electric capacity is connected with the dead end of described amplifier, the negative electricity source of described amplifier is connected with the first end of described the 8th resistance, the cathode power supply end of described amplifier is connected with the first end of described the 12 resistance with the second end of described the tenth resistance simultaneously, the inverting input while of described amplifier and the second end of described the 6th resistance, the first end of described the 7th electric capacity, the first end of described the 8th electric capacity is connected with the first end of described the 9th electric capacity, the in-phase input end while of described amplifier and the first end of described the 11 resistance, the first end of described the 6th electric capacity, the second end of described the 12 resistance is connected with the first end of described the 13 resistance, the second end while of described the 8th resistance and the second end of described the 7th resistance, the second end of described the 11 resistance, the second end of described the 6th electric capacity is connected with the second end of described the 7th electric capacity, and the second end of described the 13 resistance is connected with the second end of described the 9th electric capacity, and the second end of described the 8th electric capacity is connected with described antenna.
Further, described the second diode is light emitting diode.
The beneficial effects of the utility model are:
The utility model inspection is simple in structure, and anti-interference is good, can detect the signal transmission of any call, short message and video, even if mobile phone is also the same in silent mode, once circuit detects the rf transmission signals from start mobile phone, will send immediately chimes of doom light-emitting caution.
Accompanying drawing explanation
Fig. 1 is the utility model circuit structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises loudspeaker Y, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 11 resistance R 11, the 12 resistance R 12, the 13 resistance R 13, battery E, switch S, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5, the 6th capacitor C 6, the 7th capacitor C 7, the 8th capacitor C 8, the 9th capacitor C 9, time base chip IC 1, the first diode D1, the second diode D2, triode VT, amplifier IC2 and antenna TX, the second diode D2 is light emitting diode, the negative pole of battery E is connected with the first end of the first resistance R 1, the second end while of the first resistance R 1 and the first end of loudspeaker Y, the first end of the first capacitor C 1, the first end of the second capacitor C 2, time base chip IC 1 earth terminal 1, the negative pole of the first diode D1, the negative pole of the second diode D2, the first end of the 4th capacitor C 4 is connected with the first end of the 7th resistance R 7, the second end of loudspeaker Y with time base chip IC 1 level output end 3 be connected, the second end of the first capacitor C 1 simultaneously with time base chip IC 1 discharge end 7, time base chip IC 1 thresholding end 6 be connected with the first end of the second resistance R 2, the second end of the second capacitor C 2 with time base chip IC 1 control end 5 be connected, the positive pole of battery E is connected with the first end of switch S, the second end of switch S is connected with the first end of the 3rd resistance R 3, the second end while of the 3rd resistance R 3 and the second end of the second resistance R 2, time base chip IC 1 voltage input end 8, time base chip IC 1 reset terminal 4, the first end of the 4th resistance R 4, the first end of the 5th resistance R 5 is connected with the first end of the tenth resistance R 10, time base chip IC 1 trigger end 2 be connected with the first end of the 3rd capacitor C 3 with the second end of the 4th resistance R 4 simultaneously, the second end of the 3rd capacitor C 3 is connected with the collector of triode VT with the second end of the 5th resistance R 5 simultaneously, the emitter of triode VT is connected with the positive pole of the second diode D2 with the positive pole of the first diode D1 simultaneously, the base stage while of triode VT and the second end of the 4th capacitor C 4, the output terminal 6 of the first end of the 6th resistance R 6 and amplifier IC2 is connected, the compensation end 1 of amplifier IC2 is connected with the first end of the 9th resistance R 9, the second end of the 9th resistance R 9 is connected with the first end of the 5th capacitor C 5, the second end of the 5th capacitor C 5 is connected with the dead end 8 of amplifier IC2, the negative electricity source 4 of amplifier IC2 is connected with the first end of the 8th resistance R 8, the cathode power supply end 7 of amplifier IC2 is connected with the first end of the 12 resistance R 12 with the second end of the tenth resistance R 10 simultaneously, 3 whiles of inverting input of amplifier IC2 and the second end of the 6th resistance R 6, the first end of the 7th capacitor C 7, the first end of the 8th capacitor C 8 is connected with the first end of the 9th capacitor C 9,2 whiles of in-phase input end of amplifier IC2 and the first end of the 11 resistance R 11, the first end of the 6th capacitor C 6, the second end of the 12 resistance R 12 is connected with the first end of the 13 resistance R 13, the second end while of the 8th resistance R 8 and the second end of the 7th resistance R 7, the second end of the 11 resistance R 11, the second end of the 6th capacitor C 6 is connected with the second end of the 7th capacitor C 7, and the second end of the 13 resistance R 13 is connected with the second end of the 9th capacitor C 9, and the second end of the 8th capacitor C 8 is connected with antenna TX.
It is to utilize miniature high frequency radio receiving trap to realize that the utility model is surveyed the mobile phone of opening, and it is highly sensitive, detects frequency range large, and anti-interference is good.The frequency of operation of mobile communication is generally 7450KHZ to 8100KHZ, as long as mobile phone is leaving, will to relay station, send some radiowave instructions always: when mobile phone has just been started shooting, launch open state or acknowledge(ment) signal normally or network validation instruction; During cell phone standby, can be interrupted transmitting identity information and positional information; Meeting transmitting acknowledgement instruction when mobile phone changes in area; Mobile phone all can transmit when call, search signal or network, information etc.By the utility model, can detect the signal transmission of any call, short message and video, even if mobile phone is also the same in silent mode, once circuit detects the rf transmission signals from start mobile phone, loudspeaker Y just sends chimes of doom immediately, and drives the second diode D2 flashing.
Claims (2)
1. a jamproof mobile phone detector, is characterized in that: comprise loudspeaker, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11 resistance, the 12 resistance, the 13 resistance, battery, switch, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, time base chip, the first diode, the second diode, triode, amplifier and antenna, the negative pole of described battery is connected with the first end of described the first resistance, the second end while of described the first resistance and the first end of described loudspeaker, the first end of described the first electric capacity, the first end of described the second electric capacity, the earth terminal of base chip when described, the negative pole of described the first diode, the negative pole of described the second diode, the first end of described the 4th electric capacity is connected with the first end of described the 7th resistance, and the level output end of the second end of described loudspeaker base chip when described is connected, and the second end of described the first electric capacity is the discharge end of base chip when described simultaneously, when described, the thresholding end of base chip is connected with the first end of described the second resistance, the control end of the second end of described the second electric capacity base chip when described is connected, the positive pole of described battery is connected with the first end of described switch, the second end of described switch is connected with the first end of described the 3rd resistance, the second end while of described the 3rd resistance and the second end of described the second resistance, the voltage input end of base chip when described, the reset terminal of base chip when described, the first end of described the 4th resistance, the first end of described the 5th resistance is connected with the first end of described the tenth resistance, when described, the trigger end of base chip is connected with the first end of described the 3rd electric capacity with the second end of described the 4th resistance simultaneously, the second end of described the 3rd electric capacity is connected with the second end of described the 5th resistance and the collector of described triode simultaneously, the emitter of described triode is connected with the positive pole of described the second diode with the positive pole of described the first diode simultaneously, the base stage while of described triode and the second end of described the 4th electric capacity, described the 6th first end of resistance and the output terminal of described amplifier are connected, the compensation end of described amplifier is connected with the first end of described the 9th resistance, the second end of described the 9th resistance is connected with the first end of described the 5th electric capacity, the second end of described the 5th electric capacity is connected with the dead end of described amplifier, the negative electricity source of described amplifier is connected with the first end of described the 8th resistance, the cathode power supply end of described amplifier is connected with the first end of described the 12 resistance with the second end of described the tenth resistance simultaneously, the inverting input while of described amplifier and the second end of described the 6th resistance, the first end of described the 7th electric capacity, the first end of described the 8th electric capacity is connected with the first end of described the 9th electric capacity, the in-phase input end while of described amplifier and the first end of described the 11 resistance, the first end of described the 6th electric capacity, the second end of described the 12 resistance is connected with the first end of described the 13 resistance, the second end while of described the 8th resistance and the second end of described the 7th resistance, the second end of described the 11 resistance, the second end of described the 6th electric capacity is connected with the second end of described the 7th electric capacity, and the second end of described the 13 resistance is connected with the second end of described the 9th electric capacity, and the second end of described the 8th electric capacity is connected with described antenna.
2. jamproof mobile phone detector according to claim 1, is characterized in that: described the second diode is light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320665726.8U CN203503108U (en) | 2013-10-26 | 2013-10-26 | Anti-interference cell phone detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320665726.8U CN203503108U (en) | 2013-10-26 | 2013-10-26 | Anti-interference cell phone detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203503108U true CN203503108U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320665726.8U Expired - Fee Related CN203503108U (en) | 2013-10-26 | 2013-10-26 | Anti-interference cell phone detector |
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| Country | Link |
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| CN (1) | CN203503108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106534443A (en) * | 2016-12-09 | 2017-03-22 | 厦门安胜网络科技有限公司 | Mobile communication terminal detection method and device |
-
2013
- 2013-10-26 CN CN201320665726.8U patent/CN203503108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106534443A (en) * | 2016-12-09 | 2017-03-22 | 厦门安胜网络科技有限公司 | Mobile communication terminal detection method and device |
| CN106534443B (en) * | 2016-12-09 | 2019-12-17 | 厦门安胜网络科技有限公司 | Mobile communication terminal detection method and device |
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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 |
Granted publication date: 20140326 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |