CN201230307Y - Mobile communication interference unit - Google Patents
Mobile communication interference unit Download PDFInfo
- Publication number
- CN201230307Y CN201230307Y CNU2008200751424U CN200820075142U CN201230307Y CN 201230307 Y CN201230307 Y CN 201230307Y CN U2008200751424 U CNU2008200751424 U CN U2008200751424U CN 200820075142 U CN200820075142 U CN 200820075142U CN 201230307 Y CN201230307 Y CN 201230307Y
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- CN
- China
- Prior art keywords
- circuit
- circuit board
- interfered
- side frame
- mobile communication
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- 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 - Lifetime
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- Y02B60/50—
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Abstract
The utility model relates to a mobile communication interference unit which is particularly suitable for mobile communication interference. The utility model is characterized in that a radiator is fixed at the outer upper end of a bottom case; four interference circuit boards are respectively fixed on the radiator at the inner upper end of the bottom case; a switch power supply, a control circuit board and a receiving circuit board are respectively fixed at the inner lower end of the bottom base; the side ends of a side frame are respectively embedded in a power switch and a power socket; the lower end of the side frame is fixed on a display circuit board; the side frame is fixed on the bottom case; four small antenna boards are respectively fixed on an antenna board which is fixed with the bottom case respectively through a plurality of double-screw bolts; an outer cover is fixed on the side frame. The mobile communication interference unit has a circuit connection method that the power socket, the power switch and the switch power supply are connected; the switch power supply is connected with the receiving circuit; the receiving circuit is respectively connected with the control circuit and the display circuit; the control circuit is respectively connected with the display circuit and four interference circuit boards. The mobile communication interference unit has the advantages of high interference effectiveness and simple and convenient operation, only shields communication signals of in-site mobile phones, and has no influence on surrounding communication base station.
Description
Technical field
The utility model relates to a kind of mobile communication safety device, particularly a kind of a kind of mobile communication interference unit of mobile phone signal being shielded for secret meeting of being applied to.
Background technology
Along with the information industry develop rapidly, modernized communication equipment brings great convenience for people's life.But simultaneously, also caused many social concerns, as the peace and quiet, the carrying out of interrupting meeting that influence the public place because of mobile phone communication, betray a secret, the generation of the problem such as malfunctioning of precision instrument.
Summary of the invention
Problem in view of the prior art existence, the utility model is with the secret standard BMB9.1-2007 of the People's Republic of China (PRC) " secret meeting mobile communication interference unit specification requirement and method of testing ", BMB9.2-2007 " secret meeting mobile communication interference unit is installed and used guide " is design considerations, provide a kind of in specific place and time range, for the purpose of maintaining secrecy, under the prerequisite of the relevant administrative provisions that meet national secret department, adopt mobile communication wireless signal countermeasure set, mobile phone is received, the photos and sending messages disabler, can't transfer to or dial in, be a kind of mobile communication interference unit of purpose thereby reach mandatory forbidding.
The technical scheme that the utility model is taked for achieving the above object is: a kind of mobile communication interference unit, it is characterized in that comprising drain pan, side frame, outer cover, place the radiating circuit in the remote controller, four interfered circuit plates, control circuit board, display circuit board, circuit board for receiving, antenna plate, four miniature antenna plates, radiator, Switching Power Supply, mains switch, supply socket, described radiator is fixed on the outer upper end of drain pan, described four interfered circuit plates upper end in drain pan is fixed with radiator respectively, described Switching Power Supply, control circuit board, circuit board for receiving is separately fixed at lower end in the drain pan, described side frame side embeds mains switch and supply socket respectively, the side frame lower end is display circuit board fixedly, side frame and drain pan are fixed, described four miniature antenna plates are separately fixed on the antenna plate, antenna plate is fixed by several double-screw bolts and drain pan respectively, and described outer cover and side frame are fixed; Wherein circuit is connected to: supply socket, mains switch are connected with Switching Power Supply, Switching Power Supply is connected with circuit board for receiving, circuit board for receiving is connected with control circuit board and display circuit board respectively, control circuit board is connected with display circuit board and four interfered circuit plates respectively, four interfered circuit plates connect four miniature antenna plates respectively, and circuit board for receiving receives the wireless signal of the radiating circuit emission in the remote controller.
The beneficial effects of the utility model are: 1, this machine adopts the design of four tunnel autonomous systems, CDMA, DCS, GSM (double frequency), PHS various mobile phone signals such as (Personal Handyphone Systems) in the effective range are shielded, disturb radius to reach more than the 20M to the CDMA mobile communication especially, jamming effectiveness is good.2, built-in directional antenna, microcomputerized control, the remote controller operation has fourth gear power adjustments and Presentation Function, power supply Presentation Function, and is simple to operation.3, only shield the signal of communication of on-the-spot mobile phone, to around communication base station without any influence.
Description of drawings
Fig. 1 is the utility model structural representation, and as Figure of abstract.
Fig. 2 is a rearview of the present utility model.
Fig. 3 is an end view of the present utility model.
Fig. 4 is the utility model control circuit theory diagram.
Fig. 5 is the utility model interfered circuit theory diagram.
Embodiment
As Fig. 1,2,3,4, shown in 5, have a window in drain pan 13 upper surfaces less than radiator 9, radiator 9 is placed drain pan 13 outer window positions, it is fixing with peripheral corresponding screw of drain pan 13 windows and drain pan 13 to pass radiator 9 with screw, four blocks of interfered circuit plates 1～4 are fixing by screw and drain pan 13 inner radiators 9, Switching Power Supply (S-100-5) 10 is screwed centre position in drain pan 13, control circuit board 5, circuit board for receiving 7 is screwed lower end in drain pan 13 respectively, the side of side frame 14 embeds mains switch 11 and supply socket 12 respectively, the bottom of side frame 14 is screwed display circuit board 6, then side frame 14 and drain pan 13 are screwed, miniature antenna plate 801～804 is separately fixed on the antenna plate 8, antenna plate 8 is screwed by six double-screw bolts and drain pan 13 respectively again, at last outer cover 15 and side frame 14 are passed through screw, drain pan is welded with hook 16 in two ends about in the of 13; Its circuit is connected to: supply socket 12, mains switch 11 is connected with Switching Power Supply 10, Switching Power Supply 10 and circuit board for receiving 7, control circuit board 5 connects successively, control circuit board 5 respectively with display circuit board 6 and CDM interfered circuit 1, DCS interfered circuit 2, GSM interfered circuit 3, PHS interfered circuit 4 connects, CDM interfered circuit 1 is connected with miniature antenna 801 by lead, DCS interfered circuit 2 is connected with miniature antenna 802 by lead, GSM interfered circuit 3 is connected with miniature antenna 803 by lead, PHS interfered circuit 4 is connected with miniature antenna 804 by lead, and circuit board for receiving 7 receives the wireless signal of the radiating circuit emission in the remote controller.Interfered circuit comprises: CDM interfered circuit, DCS interfered circuit, GSM interfered circuit, PHS interfered circuit.
Interfered circuit comprises: oscillating circuit, discharge circuit, voltage controlled oscillator, power amplification circuit and radio-frequency transmissions circuit, oscillating circuit is connected successively with discharge circuit, voltage controlled oscillator, power amplification circuit and radio-frequency transmissions circuit.
The mobile communication principle is as follows: in certain frequency range, mobile phone and base station link up by radio wave, finish the transmission of data and sound with certain baud rate and modulation system.
At above-mentioned Principle of Communication, mobile communication interference unit operation principle is that interference handset receives and transmission, reaches the purpose of cutting off communication by generation and the interference signal of base station down with frequency.
The operation principle of four interfered circuits: adopt oscillating circuit to produce swept-frequency signal through amplifier, this signal is modulated to voltage controlled oscillator tuning voltage end (each circuit board voltage controlled oscillator produces CDMA, DCS, GSM, PHS interfering frequency respectively) with mode of frequency regulation, produce and base station down each road interference signal with frequency, through amplifying circuit, by antenna emission air interference signal, finally reach the purpose of cutting off mobile communication.
The utility model adopts the design of four tunnel autonomous systems, and CDMA, DCS, GSM (double frequency), PHS various mobile phone signals such as (Personal Handyphone Systems) in the effective range are shielded.Built-in directional antenna, microcomputerized control, remote controller operation.Have fourth gear power remote control adjustment and Presentation Function, power supply Presentation Function.
The operation principle of complete machine: receiving circuit by wireless transmission method receive that remote controller sends open A, close D, frequency-selecting B, power adjustments C signal is transferred to control circuit board, microprocessor control display circuit (frequency range, power), power supply by control circuit board shows, power adjustments (the gain-adjusted end of CDMA, DCS, GSM, PHS power amplifier), by antenna emission air interference signal, finally reach the purpose of cutting off mobile communication again.
Claims (3)
1, a kind of mobile communication interference unit, it is characterized in that, comprise drain pan (13), side frame (14), outer cover (15), place the radiating circuit in the remote controller, interfered circuit plate (1～4), control circuit board (5), display circuit board (6), circuit board for receiving (7), antenna plate (8), miniature antenna plate (801～804), radiator (9), Switching Power Supply (10) mains switch (11), supply socket (12), described radiator (9) is fixed on the outer upper end of drain pan (13), described interfered circuit plate (1～4) upper end in drain pan (13) is fixing with radiator (9) respectively, described Switching Power Supply (10), control circuit board (5), circuit board for receiving (7) is separately fixed at the interior lower end of drain pan (13), described side frame (14) side embeds mains switch (11) and supply socket (12) respectively, side frame (14) lower end is display circuit board (6) fixedly, side frame (14) is fixing with drain pan (13), described miniature antenna plate (801～804) is separately fixed on the antenna plate (8), antenna plate (8) is fixing by several double-screw bolts and drain pan (13) respectively, and described outer cover (15) is fixing with side frame (14); Wherein circuit is connected to: supply socket (12), mains switch (11) are connected with Switching Power Supply (10), Switching Power Supply (10) is connected with circuit board for receiving (7), circuit board for receiving (7) is connected with control circuit board (5) and display circuit board (6) respectively, control circuit board (5) is connected with display circuit board (6) and interfered circuit plate (1～4) respectively, interfered circuit plate (1～4) connects miniature antenna plate (801～804) respectively, and circuit board for receiving (7) receives the wireless signal of the radiating circuit emission in the remote controller.
2, mobile communication interference unit according to claim 1 is characterized in that, described interfered circuit plate (1～4) comprising: CDM interfered circuit (1), DCS interfered circuit (2), GSM interfered circuit (3), PHS interfered circuit (4).
3, mobile communication interference unit according to claim 2, it is characterized in that, described interfered circuit comprises: oscillating circuit, discharge circuit, voltage controlled oscillator, power amplification circuit and radio-frequency transmissions circuit, described oscillating circuit, discharge circuit, voltage controlled oscillator, power amplification circuit and radio-frequency transmissions circuit connect successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200751424U CN201230307Y (en) | 2008-06-27 | 2008-06-27 | Mobile communication interference unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200751424U CN201230307Y (en) | 2008-06-27 | 2008-06-27 | Mobile communication interference unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201230307Y true CN201230307Y (en) | 2009-04-29 |
Family
ID=40635249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200751424U Expired - Lifetime CN201230307Y (en) | 2008-06-27 | 2008-06-27 | Mobile communication interference unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201230307Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957071A (en) * | 2014-05-13 | 2014-07-30 | 济南中经鹿鸣信息科技有限公司 | Desktop board type signal shielding device |
| CN105227263A (en) * | 2015-10-20 | 2016-01-06 | 张浩杰 | A kind of multi-frequency band mobile phone signal shielding device |
| CN106130685A (en) * | 2016-08-22 | 2016-11-16 | 苏州倍声声学技术有限公司 | A kind of radio frequency interference instrument |
-
2008
- 2008-06-27 CN CNU2008200751424U patent/CN201230307Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957071A (en) * | 2014-05-13 | 2014-07-30 | 济南中经鹿鸣信息科技有限公司 | Desktop board type signal shielding device |
| CN105227263A (en) * | 2015-10-20 | 2016-01-06 | 张浩杰 | A kind of multi-frequency band mobile phone signal shielding device |
| CN106130685A (en) * | 2016-08-22 | 2016-11-16 | 苏州倍声声学技术有限公司 | A kind of radio frequency interference instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090429 |
|
| CX01 | Expiry of patent term |