CN101272152B - Testing apparatus for detectaphone - Google Patents
Testing apparatus for detectaphone Download PDFInfo
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- CN101272152B CN101272152B CN2007100868461A CN200710086846A CN101272152B CN 101272152 B CN101272152 B CN 101272152B CN 2007100868461 A CN2007100868461 A CN 2007100868461A CN 200710086846 A CN200710086846 A CN 200710086846A CN 101272152 B CN101272152 B CN 101272152B
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Abstract
The invention relates to a detectaphone detecting device which is used for detecting a hidden detectaphone. The detectaphone detecting device comprises a sound generating device, an identifying and decoding device and a control device; the sound generating device generates a special aural signal, so as to be conveniently received by the microphone of the detectaphone; the wireless emitter of the detectaphone sends out a corresponding radio signal; the identifying and decoding device receives the radio signal and carries out the decoding of the radio signal, so as to obtain a decoding aural signal; the control device is respectively connected with the sound generating device and the identifying and decoding device, so as to plan the sound generating device to generate the special aural signal and judge whether the decoding aural signal generated by the identifying and decoding device is corresponding to the special aural signal or not, so as to decide whether the detectaphone exists or not.
Description
Technical field
The present invention relates to a kind of testing apparatus for detectaphone, You Zhiyi can correctly detect the testing apparatus for detectaphone whether tapping device exists.
Background technology
In the intelligence activity, steal secret with a tapping device that is hidden in the room usually, but this tapping device is a received audio signal, and it is sent with the form of radiofrequency signal after with carrier modulation, and received by being positioned at other local receiver.
Aforementioned tapping device has quite little size usually and is very easily hiding, therefore, find out unrealistic that the position at tapping device place will show if desire with actual search, another feasible method is the schematic diagram of existing detection tapping device as shown in Figure 1, be to be used as the tapping device detector with an audio receiver 1 (Audio receiver), so that to search the radiofrequency signal that tapping device 2 is launched, so that whether have tapping device to exist in the environment to judge, right this mode need have user 3 to send suitable sound just to order about tapping device 2 and launch radiofrequency signal, extremely inconvenience in the use, in addition, the radio wave that exists in the environment, broadcast receiver electric wave for example, or or even environment in noise or noise all may be received by audio receiver 1, cause the existence of 1 pair of tapping device 2 of audio receiver whether to cause erroneous judgement.Hence one can see that, and the detection of existing tapping device still has many disappearances and necessity of being improved is arranged.
Summary of the invention
The invention provides a kind of testing apparatus for detectaphone, is in order to detecting a tapping device of hiding, and it comprises a flexible piezoelectric sound-generating devices, an identification decoding device, an and control device.Wherein, flexible piezoelectric sound-generating devices is to produce a particular sound signal, so that the microphone by tapping device is received, the wireless launcher of tapping device sends corresponding radio signal, the identification decoding device is to receive radio signals, so that radio signal is decoded, and the acquisition decoded sound signal, control device is to connect flexible piezoelectric sound-generating devices and identification decoding device respectively, produce particular sound signal with the planning flexible piezoelectric sound-generating devices, and judge whether the decoded sound signal that the identification decoding device is produced is corresponding to particular sound signal, and the existence of decision tapping device is whether.
Control device comprises that one shows and key-press input unit, it includes a plurality of switches and a plurality of light-emitting diode, wherein, a plurality of switches are in order to set the function mode of different on off states for the control testing apparatus for detectaphone, and a plurality of light-emitting diodes are in order to show the operating state of different show states with the expression testing apparatus for detectaphone; And a central processing unit is coupled to flexible piezoelectric sound-generating devices, demonstration and key-press input unit, and identification decoding device respectively, sound control output to be provided respectively, to show control and switch input, and receive the function of control and data input.
Central processing unit is sent to flexible piezoelectric sound-generating devices, a volume control signal and is sent to flexible piezoelectric sound-generating devices, and switches frequency signal and be sent to the identification decoding device to send an audio coding signal by a plurality of switches of operation.
Flexible piezoelectric sound-generating devices comprises an audio signal generator, an audio frequency amplifier, reaches a loud speaker, audio signal generator connects central processing unit, produce particular sound signal to receive audio coding signal, audio frequency amplifier is to connect audio signal generator and central processing unit respectively, amplify particular sound signal with the volume of reception control signal, loud speaker is electrically connected audio frequency amplifier, and complies with above-mentioned particular sound signal to send corresponding sound.
The identification decoding device comprises a wideband wireless receiver, an and audio decoder, the wideband wireless receiver connects central processing unit to receive switching frequency signal, receive radio signals so that switch at least one receive frequency, audio decoder connects wideband wireless receiver and central processing unit respectively, and audio decoder receives radio signals and decodes and obtain decoded sound signal and be sent to central processing unit.
Central processing unit judges whether decoded sound signal is corresponding to audio coding signal, if corresponding, the intensity that receives according to radio signal then is with amount of luminescence or the brightness of controlling a plurality of light-emitting diodes.
According to above-mentioned, it is of the present invention that a kind of testing apparatus for detectaphone is provided is that existing checkout gear more increases the mechanism of knowing a particular sound signal of debating is arranged, the user need not to sound, only need to produce particular sound signal by flexible piezoelectric sound-generating devices, tapping device receives particular sound signal and produces corresponding radio signal, then the identification decoding device receives radio signals to decode decoded sound signal, and by control device comparison corresponding particular sound signal whether, to get rid of erroneous judgement that general noise is caused, therefore more improve the accuracy of judging that tapping device exists.
Description of drawings
Fig. 1 is the existing schematic diagram that detects tapping device;
Fig. 2 is the system architecture diagram of testing apparatus for detectaphone of the present invention;
Fig. 3 is the circuit framework figure of control device of the present invention;
Fig. 4 is the circuit framework figure of flexible piezoelectric sound-generating devices of the present invention;
Fig. 5 is the circuit framework figure of identification decoding device of the present invention.
[primary clustering symbol description]
Audio receiver 1 tapping device 2 users 3
Flexible piezoelectric sound-generating devices 21 audio signal generators 211
Identification decoding device 22 wideband wireless receivers 221
Voltage controlled oscillator 2214 intermediate frequency amplifiers 2215 filters 2216
Audio decoder 222 frequencies/voice detector 2221
Decoder 2222 control device 23
Central processing unit 231 shows and key-press input unit 232
Switch 2321 light-emitting diodes 2322
D0, D1, D2, D3 pin G0, G1, G2, G3 pin
V0, V1, V2, V3 pin d0, d1, d2, d3 pin
Tapping device 24 microphones 241
Embodiment
Below be by by particular specific embodiment explanation embodiments of the present invention, make this invention technical field tool know that usually the knowledgeable can understand other advantage of the present invention and effect easily by the content that this specification disclosed.
Please refer to Fig. 2, is the system architecture diagram of testing apparatus for detectaphone of the present invention.
As shown in Figure 2, testing apparatus for detectaphone of the present invention is in order to detect a tapping device 24 of hiding, it comprises a flexible piezoelectric sound-generating devices 21, one identification decoding device 22, an and control device 23, wherein, flexible piezoelectric sound-generating devices 21 is to produce particular sound signal, so that the microphone 241 by a tapping device 24 is received, the wireless launcher of tapping device 24 sends corresponding radio signal, identification decoding device 22 is to receive radio signals, so that radio signal is decoded, and the acquisition decoded sound signal, control device 23 is to connect flexible piezoelectric sound-generating devices 21 and identification decoding device 22 respectively, produce particular sound signal with planning flexible piezoelectric sound-generating devices 21, and judge whether the decoded sound signal that identification decoding device 22 is produced is corresponding to particular sound signal, and the existence that determines tapping device 24 whether.
Please refer to Fig. 4, it is the structure chart of flexible piezoelectric sound-generating devices 21 of the present invention, flexible piezoelectric sound-generating devices 21 comprises an audio signal generator 211, an audio frequency amplifier 212, reaches a loud speaker 213, audio signal generator 211 tool D0, D1, D2, D3 pin connect central processing unit 231, receiving audio coding signal, and produce particular sound signal according to this audio coding signal; Audio frequency amplifier 212 is to comprise that a gain controller 2121 is to control the multiplying power of its amplification, gain controller 2121 has G0, G1, G2, G3 pin, it receives the volume control signal that central processing unit 231 transmits, so that the multiplying power that control is amplified, audio frequency amplifier 212 are to connect the particular sound signal that audio signal generator 211 receives with amplification; Loud speaker 213 is electrically connected audio frequency amplifier 212, and complies with above-mentioned amplification particular sound signal to send corresponding sound.
Please refer to Fig. 5, is the circuit structure diagram of identification decoding device 22 of the present invention, and it comprises a wideband wireless receiver 221 and an audio decoder 222.
Aforementioned wideband wireless receiver 221 connects central processing unit 231 and audio decoder 222 respectively.Wideband wireless receiver 221 is to comprise an antenna 2211, one low-noise amplifier 2212 connects antenna 2211, one mixer 2213 connects low-noise amplifier 2212, one voltage controlled oscillator 2214 connects mixer 2213, one intermediate frequency amplifier 2215 connects mixer 2213, and a filter 2216 connects intermediate frequency amplifier 2215 and audio decoder 222 respectively, wherein, voltage controlled oscillator 2214 has V0, V1, V2, the V3 pin is to receive the switching frequency signal that central processing unit 231 transmits, produce at least one local oscillating frequency according to switching frequency signal, mixer 2213 is by becoming at least one intermediate-freuqncy signal by at least one local oscillating frequency with the radio signal frequency reducing, as mentioned above, wideband wireless receiver 221 according to switching frequency signal with scanning of radio number.Radio signal receives via antenna 2211, be sent to mixer 2213 via low-noise amplifier 2212 amplifications, mixer 2213 is that at least one local oscillating frequency that reception voltage controlled oscillator 2214 sends is reduced to intermediate frequency with radio signal, and the radio of frequency reducing filters noises by filter 2216 again through intermediate frequency amplifier 2215 amplifications and is sent to audio decoder 222.
Audio decoder 222 is to comprise one a frequency/voice detector 2221 and a decoder 2222, wherein, frequency/voice detector 2221 connects filter 2216 and decoder 2222, decoder 2222 tool d0, d1, d2 respectively, the d3 pin connects central processing unit 231.Frequency/voice detector 2221 receives reduces to the radio signal of intermediate frequency to demodulate voice signal, be sent to then that decoder 2222 is decoded and the decoded sound signal that obtains a 4-bit through d0, d1, d2, the d3 pin is sent to central processing unit 231, central processing unit 231 judges whether decoded sound signal is corresponding to audio coding signal, if it is corresponding, can judge that then the particular sound signal that is produced is really received by a tapping device and this tapping device sends corresponding radio signal, thereby can confirm the existence of tapping device, and the intensity that can receive according to radio signal more is with amount of luminescence or the brightness of controlling a plurality of light-emitting diodes 2322.
In the use, at first the user can operate a plurality of switches 2321, by central processing unit 231 send an audio coding signal to audio signal generator 211 to produce particular sound signal, then transfer big volume control signal to be sent to audio frequency amplifier 212 and amplify particular sound signal, continue to sound to detect on a large scale by loud speaker 213 then.
Suppose to have really a tapping device 24, then identification decoding device 22 decodable codes obtain particular sound signal, and a plurality of light-emitting diode 2322 luminous existence of representing to detect tapping device of these control device 23 may command, and be the position of confirming tapping device, small volume control signal that the user is adjustable is to reduce the intensity that is received radio signals, and the position of mobile testing apparatus for detectaphone, wait that the intensity that received radio signals is once again during grow, adjustable once more small volume control signal is to reduce the intensity that is received radio signals, and the position of mobile testing apparatus for detectaphone, repeat above-mentioned steps and can approach the tapping device position, and find out hiding tapping device.
In sum, the invention provides a kind of testing apparatus for detectaphone is more to increase than existing testing apparatus for detectaphone the mechanism of knowing a particular sound signal of debating is arranged, therefore the user need not to sound, only need by producing particular sound signal with control flexible piezoelectric sound-generating devices 21 by operating control device 23, tapping device 24 receives particular sound signal and sends corresponding radio signal, then the identification decoding device receives radio signals to decode decoded sound signal, and by control device 23 comparison corresponding particular sound signal whether, to get rid of erroneous judgement that general noise is caused, therefore more improve the accuracy of judging that tapping device exists.
The foregoing description only is to give an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (5)
1. testing apparatus for detectaphone in order to detect a tapping device of hiding, is characterized in that comprising:
One flexible piezoelectric sound-generating devices produces a particular sound signal, so that received by the microphone of this tapping device, the wireless launcher of this tapping device sends corresponding radio signal;
One identification decoding device receives this radio signal, so that this radio signal is decoded, and obtains decoded sound signal; And
One control device, this control device comprises:
One shows and key-press input unit, include a plurality of switches and a plurality of light-emitting diode, these a plurality of switches are in order to set the function mode of different on off states for the control testing apparatus for detectaphone, and these a plurality of light-emitting diodes are in order to show the operating state of different show states with the expression testing apparatus for detectaphone; And
One central processing unit is coupled to this flexible piezoelectric sound-generating devices, this demonstration and key-press input unit, and this identification decoding device respectively, sound control output to be provided respectively, to show control and switch input, and receive the function of control and data input;
Wherein, this control device connects this flexible piezoelectric sound-generating devices and this identification decoding device respectively, produce this particular sound signal to control this flexible piezoelectric sound-generating devices, and judge whether this decoded sound signal that this identification decoding device is produced is corresponding to this particular sound signal, and the existence of decision tapping device is whether.
2. testing apparatus for detectaphone as claimed in claim 1, it is characterized in that, these a plurality of switches are sent to this flexible piezoelectric sound-generating devices to send an audio coding signal to this central processing unit, a volume control signal is sent to this flexible piezoelectric sound-generating devices by operating, and a switching frequency signal is sent to this identification decoding device.
3. testing apparatus for detectaphone as claimed in claim 2, it is characterized in that, this flexible piezoelectric sound-generating devices comprises an audio signal generator, an audio frequency amplifier, reaches a loud speaker, this audio signal generator connects this central processing unit, produces this particular sound signal to receive this audio coding signal; This audio frequency amplifier connects this audio signal generator and this central processing unit respectively, and this audio frequency amplifier includes a gain controller and amplifies this particular sound signal that is produced by this audio signal generator to receive this volume control signal; This loud speaker is electrically connected this audio frequency amplifier, and complies with above-mentioned this particular sound signal to send corresponding sound.
4. testing apparatus for detectaphone as claimed in claim 3, it is characterized in that, this identification decoding device comprises a wideband wireless receiver, an and audio decoder, this wideband wireless receiver connects this central processing unit to receive this switching frequency signal, receives this radio signal so that switch at least one receive frequency; This audio decoder connects this wideband wireless receiver and this central processing unit respectively, and this audio decoder receives this radio signal and decodes and obtain this decoded sound signal and be sent to this central processing unit.
5. testing apparatus for detectaphone as claimed in claim 2, it is characterized in that, this central processing unit judges whether this decoded sound signal is corresponding to this audio coding signal, if it is corresponding, the intensity that receives according to this radio signal then is with amount of luminescence or the brightness of controlling these a plurality of light-emitting diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100868461A CN101272152B (en) | 2007-03-19 | 2007-03-19 | Testing apparatus for detectaphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100868461A CN101272152B (en) | 2007-03-19 | 2007-03-19 | Testing apparatus for detectaphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101272152A CN101272152A (en) | 2008-09-24 |
| CN101272152B true CN101272152B (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100868461A Expired - Fee Related CN101272152B (en) | 2007-03-19 | 2007-03-19 | Testing apparatus for detectaphone |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103035106B (en) * | 2012-09-25 | 2015-06-24 | 国家电网公司 | Wireless remote control power-stealing detector |
| CN107294622A (en) * | 2016-04-01 | 2017-10-24 | 北京中密安信息安全技术有限公司 | Wireless detection method of stealing secret information |
| CN107294907A (en) * | 2016-04-01 | 2017-10-24 | 北京中密安信息安全技术有限公司 | Wired detection method of stealing secret information |
| CN107290743A (en) * | 2016-04-01 | 2017-10-24 | 北京中密安信息安全技术有限公司 | Photography and vedio recording detection method of recording and detector |
| CN113271371B (en) * | 2021-07-15 | 2021-10-08 | 上海豪承信息技术有限公司 | Mobile terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2392310Y (en) * | 1999-09-20 | 2000-08-16 | 陈绍伟 | Instrument for receiving or transmitting radio emergency signals |
| CN1387705A (en) * | 1999-11-05 | 2002-12-25 | (株)Woori技术 | System and method for monitoring wiretap |
| CN1619971A (en) * | 2003-11-17 | 2005-05-25 | 株式会社宇宙It | System and method for detecting eavesdropping device |
| KR20060040164A (en) * | 2004-11-04 | 2006-05-10 | 엘지전자 주식회사 | Device and method for detecting illegal frequency of mobile terminal |
-
2007
- 2007-03-19 CN CN2007100868461A patent/CN101272152B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2392310Y (en) * | 1999-09-20 | 2000-08-16 | 陈绍伟 | Instrument for receiving or transmitting radio emergency signals |
| CN1387705A (en) * | 1999-11-05 | 2002-12-25 | (株)Woori技术 | System and method for monitoring wiretap |
| CN1619971A (en) * | 2003-11-17 | 2005-05-25 | 株式会社宇宙It | System and method for detecting eavesdropping device |
| KR20060040164A (en) * | 2004-11-04 | 2006-05-10 | 엘지전자 주식회사 | Device and method for detecting illegal frequency of mobile terminal |
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| Publication number | Publication date |
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| CN101272152A (en) | 2008-09-24 |
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Granted publication date: 20110921 Termination date: 20170319 |