CN102611471A - Broadband omni-directional radio shielding device - Google Patents
Broadband omni-directional radio shielding device Download PDFInfo
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- CN102611471A CN102611471A CN2011100252386A CN201110025238A CN102611471A CN 102611471 A CN102611471 A CN 102611471A CN 2011100252386 A CN2011100252386 A CN 2011100252386A CN 201110025238 A CN201110025238 A CN 201110025238A CN 102611471 A CN102611471 A CN 102611471A
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- helical antenna
- circuit board
- wideband omnidirectional
- omnidirectional radio
- radio shielding
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Abstract
The invention relates to a broadband radio communication signal shielding device, in particular to an integrated broadband omni-directional radio shielding device, which can spread the frequency range of 120 to 800 MHz, is simple in structure and convenient in installation, can realize omni-directional radiation, can set work frequency band through an RS232 serial port in an audio jack manner, and is suitable for examination sites to interfere illegal radio communication signals. The external part of the broadband omni-directional radio shielding device consists of a top cover and a chassis, and the internal part consists of a body helical antenna, a top planar helical antenna and a circuit board, wherein the body helical antenna and the top planar helical antenna are respectively mounted on the sidewall and the top of the top cover; an antenna uniformly arranged in five directions is formed in the top cover; a broadband signal generation power supply module and a signal generator generate broadband signals of the circuit board; a circuit board MCU (microprogrammed control unit) and the signal generator constitute a signal generation circuit of the circuit board; and a power amplification power supply and a power amplification module constitute a signal transmitting circuit through wires.
Description
Affiliated technical field
Technology of the present invention relates to a kind of shielding device of wideband radio communications signal.
Background technology
At present, among a large amount of illegal wireless electrical communication signals was applied in and cheats at one's exam, the cheating personnel received the cheating signal that the radio communication equipment outside the examination hall sends through the radiocommunication signals receiving system of carrying, and reached the purpose of cheating.And the radiocommunication signals receiving system kind of carrying is many, frequency band is many, the mode of carrying is many, is not vulnerable to proctor person's discovery.
Summary of the invention
Examination is on-the-spot to be existed in order to solve; The cheating personnel practise fraud through carrying the radiocommunication signals receiving system; And be not vulnerable to the drawback of proctor person's management; Patent of the present invention provides a kind of illegal wireless electrical communication signals that can be directed against the examination scene to disturb, and the wideband omnidirectional radio shielding device of hidden is installed simply.
Patent of the present invention solves the technical scheme that its technical problem adopted: the signal controller in the circuit reaches 120-800MHz broad-band interference radio wave through signal generator module, power amplifier module and by the antenna transmit frequency range.Utilize the shell of wideband omnidirectional radio shielding device simultaneously,, and be fixed on the inside of the shell of wideband omnidirectional radio shielding device reliably, form the antenna that 5 directions are evenly arranged the arrangement of the lead that has calculated length and thickness according to rule ordering.Pass through serial line interface; Any shielding frequency range that is arranged in the frequency range able to programme; And can in signal controller, write the employed frequency range of specific field personnel; Make the interference signal of wideband omnidirectional radio shielding device can not have influence on staff's the transmitting and receiving of radiocommunication signals, also can be provided with simultaneously and disturb the dispensing time with postponing the time of delay that powers on.
The useful effect of patent of the present invention is: the broadband wireless electrical interference can cover the frequency range of 120-800MHz; Simple in structure, quick for installation, but omnidirectional radiation; Through the setting in advance of signal controller, can reserve working frequency range; Be applicable to that examination is on-the-spot, the illegal wireless electrical communication signals is disturbed, integrated design, omnidirectional's radio shielding device in broadband.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified
Fig. 1 wideband omnidirectional radio shielding device front view
Fig. 2 wideband omnidirectional radio shielding device rearview
Fig. 3 wideband omnidirectional radio shielding device vertical view
Fig. 4 wideband omnidirectional radio shielding device upward view
Fig. 5 hidden wideband omnidirectional antenna structure
Fig. 6 body helical antenna front view
Fig. 7 body helical antenna structure figure
Fig. 8 wideband omnidirectional radio shielding device base installation diagram
Fig. 9 wideband omnidirectional radio shielding device control circuit board
Figure 10 wideband omnidirectional radio shielding device mounting structure figure
Figure 11 wideband omnidirectional radio shielding device circuit board mounting structure figure
Among the figure 1, wideband omnidirectional radio shielding device top cover, 2, wideband omnidirectional radio shielding device base, 3, mains switch, 4, power supply indicator, 5, the power supply adaptor socket; 6, audio jack, 7, top cover hidden louvre, 8, the LOGO of company icon, 9, the base louvre, 10, fixed screw; 11, lead, 12, the top cover fixed leg, 13, body helical antenna top cover fixed leg, 14, the body helical antenna, 15, the body helical antenna is terminal; 16, top plan helical antenna fixed mount, 17, the top plan helical antenna, 18, the flexible fixed band of body helical antenna, 19, body helical antenna external fixation band, 20, the base fixing hole; 21, circuit board, 22, the circuit board fixed screw, 23, power supply switch plug, 24, the indicator light plug, 25, the RS232 serial interface plug; 26, attaching plug, 27, the fan plug, 28, radiator, 29, the radiator fixed screw, 30, antenna feed point; 31, power amplifier module, 32, the amplifier power supply module, 33, circuit board MCU, 34, the TTL-232 level translator; 35, broadband signal produces supply module, and 36, the broadband signal generator, 37, base circuit plate fixed leg, 38, fan.
Embodiment
In Fig. 1, the housing of wideband omnidirectional radio shielding device is made up of wideband omnidirectional radio shielding device top cover (1) and wideband omnidirectional radio shielding device base (2) two parts; Mains switch (3) and power supply indicator (4) are installed in the position of facing of wideband omnidirectional radio shielding device housing.
In Fig. 2, the housing of wideband omnidirectional radio shielding device is made up of wideband omnidirectional radio shielding device top cover (1) and wideband omnidirectional radio shielding device base (2) two parts; Power supply adaptor socket (4) and audio jack (5) are installed in the back apparent place of wideband omnidirectional radio shielding device housing.
In Fig. 3,, top cover hidden louvre (7) and the LOGO of company icon (8) are arranged in wideband omnidirectional radio shielding device top cover (1) outside.
In Fig. 4, in wideband omnidirectional radio shielding device base (2) outside, have base louvre (9) and with the LOGO of company icon (8); Wideband omnidirectional radio shielding device base (2) is connected with wideband omnidirectional radio shielding device top cover (1) through fixed screw (10) and is fixing.
In Fig. 5; By the body helical antenna (14) that lead (11) constitutes, body helical antenna (14) is fixed on wideband omnidirectional radio shielding device top cover (2) inner peripheral through wideband omnidirectional radio shielding device top cover (1) inner top cover fixed leg (12) and body helical antenna top cover fixed leg (13); The original position of lead (11) is at the body helical antenna terminal (15) of body helical antenna (14); Lead (11) constitutes top plan helical antenna (17) through the top plan helical antenna fixed mount (16) of wideband omnidirectional radio shielding device top cover (1).
In Fig. 6, lead (11) is wrapped on the flexible fixed band of body helical antenna (18) that has viscose glue uniformly, and is fixed into one through body helical antenna external fixation band (19); Lead (11) original position is in body helical antenna terminal (15).
In Fig. 7, lead (11) is fixed into the airtight body helical antenna (14) of an annular through flexible fixed band (18) of body helical antenna and body helical antenna external fixation band (19).
In Fig. 8, circuit board (21) is fixed on the wideband omnidirectional radio shielding device base (2) through circuit board fixed screw (22); Radiator (28) is fixed on the circuit board (21) through radiator fixed screw (29); Lead (11) welds with the antenna feed point (30) of circuit board (21); Power supply switch plug (23) is connected with mains switch (3) through winding displacement; Indicator light plug (24) is connected with power supply indicator (4) through winding displacement; RS232 plug (25) is connected with audio jack (6) through winding displacement; Attaching plug (26) is connected with power supply adaptor socket (5) through winding displacement.
In Fig. 9, radiator (28) is fixed on the circuit board (21) through radiator fixed screw (29), and power amplifier module (31) is fixed on the radiator (28); Power amplifier module (31) is connected with antenna feed point (30) with amplifier power supply module (32) respectively through circuit board (21); Circuit board MCU (33) is connected with TTL-232 level translator (34) with broadband signal generator (36) respectively through circuit board (21); RS232 serial interface plug (25) is connected with TTL-232 level translator (34) through circuit board (21); Broadband signal produces the side that supply module (35) is welded on circuit board (21).
In Figure 10, wideband omnidirectional radio shielding device is to be made up of wideband omnidirectional radio top cover (1) and wideband omnidirectional radio base (2) two parts; Wideband omnidirectional radio shielding device top cover (1) inside is equipped with body helical antenna (14) and top plan helical antenna (17); The lateral edge that top cover fixed leg (12) and the body helical antenna fixed mount (13) of body helical antenna (14) through wideband omnidirectional radio shielding device top cover (1) is fixed on wideband omnidirectional radio shielding device top cover (1); Lead (11) twines and is fixed on the top of wideband omnidirectional radio shielding device top cover (1) through top plan helical antenna fixed mount (16) spiral of wideband omnidirectional radio shielding device top cover (1); The position that originates in body helical antenna terminal (15) of lead (11), antenna feed point (30) welding of the other end of lead (11) and circuit board (21); Wideband omnidirectional radio shielding device base (2) inside is equipped with circuit board (21), mains switch (3), power supply indicator (4), power supply adaptor socket (5), audio jack (6); Mains switch (3) is connected with power supply switch plug (23) on the circuit board (21) through winding displacement; Power supply indicator (4) is connected with indicator light plug (24) through winding displacement; Power supply adaptor socket (5) is connected with attaching plug (26) through winding displacement, and audio jack (6) is connected with RS232 serial interface plug (25) through winding displacement; Power amplifier module (31) is fixed on the radiator (28), and radiator (28) is fixed on the circuit board (21) through radiator fixed screw (29); Broadband signal produces the broadband signal of supply module (35) forming circuit plate (21); The signal control circuit of circuit board MCU (33) and broadband signal generator (36) forming circuit plate (21); Circuit board MCU (33) and TTL-232 level translator and RS232 serial interface plug (25) and audio jack (6) constitute the microcontroller communication circuit, and amplifier power supply module (32) and power amplifier module (31) constitute signal transmission circuit through lead (11).
In Figure 11; Circuit board (21) is fixed on the base circuit plate fixed leg (37) of wideband omnidirectional radio shielding device base (2) through circuit board fixed screw (22); Fan (38) is fixed on the wideband omnidirectional radio shielding device base (2) under the radiator (28), and fan (38) is connected with fan plug (27) through winding displacement.
Claims (10)
1. a broadband gold is to the radio shielding device; In equipment, the antenna and the circuit board be made up of wideband omnidirectional radio shielding device top cover, wideband omnidirectional radio shielding device base, body helical antenna and top plan helical antenna of wideband omnidirectional radio shielding device constitute.The body helical antenna is to use lead to be fixed into build through flexible fixed band, and is installed to the sidewall of wideband omnidirectional radio shielding device top cover through fixed mount; The other end of the lead of body helical antenna is fixed on the top of wideband omnidirectional radio top cover through top plan helical antenna fixed mount, forms a flat helical antenna; The flat helical antenna at body helical antenna and top forms the antenna structure that 5 directions are evenly arranged in wideband omnidirectional radio shielding device top cover.Antenna in the wideband omnidirectional radio shielding device top cover is with the form of lead and the antenna feed means of spot welds of circuit board; Wideband omnidirectional radio shielding device base inside is equipped with circuit board, mains switch, power supply indicator, power supply adaptor socket, audio jack; Mains switch is connected with power supply switch plug on the circuit board through winding displacement; Power supply indicator is connected with the indicator light plug through winding displacement; The power supply adaptor socket is connected with attaching plug through winding displacement; Audio socket is connected with the audio board socket of circuit board through winding displacement; Wiring through circuit board is connected with TTL-232 level translator and circuit board MCU again, constitutes a RS232 serial data interface and a microcontroller communication circuit that exists with the audio sockets form; Power amplifier module is fixed on the radiator, and radiator is fixed on the circuit board through the radiator fixed screw; Broadband signal generation supply module and broadband signal generator produce the broadband signal of circuit board; The signal control circuit of circuit board MCU and broadband signal generator forming circuit plate; Amplifier power supply module and power amplifier module constitute signal transmission circuit through lead.
2. according to the said wideband omnidirectional radio shielding of claim 1 device, it is characterized in that: the constituting of wideband omnidirectional radio shielding device by wideband omnidirectional radio shielding device top cover, wideband omnidirectional radio shielding device base, antenna and the circuit board formed by body helical antenna and top plan helical antenna.
3. according to the said wideband omnidirectional radio shielding of claim 1 device, it is characterized in that: lead is wound in airtight body helical antenna through the flexible fixed band of body helical antenna.
4. according to the said wideband omnidirectional radio shielding of claim 1 device, it is characterized in that: the body helical antenna is installed to the sidewall of wideband omnidirectional radio top cover through fixed mount.
5. according to the said wideband omnidirectional radio shielding of claim 1 device; It is characterized in that: make the remaining lead of body helical antenna through top plan helical antenna fixed mount; Be fixed on the top of wideband omnidirectional radio top cover, form a top plan helical antenna at the top.
6. according to the said wideband omnidirectional radio shielding of claim 1 device, it is characterized in that: body helical antenna and top plan helical antenna form the antenna that 5 directions are evenly arranged in wideband omnidirectional radio top cover.
7. according to the said wideband omnidirectional radio shielding of claim 1 device, it is characterized in that: body helical antenna and top plan helical antenna constitute signal transmission circuit with the form of lead and the antenna feed means of spot welds of circuit board with amplifier power supply module and power amplifier module.
8. according to the said wideband omnidirectional radio shielding of claim 1 device, it is characterized in that: broadband signal generation supply module and broadband signal generator produce the broadband signal of circuit board.
9. according to the said wideband omnidirectional radio shielding of claim 1 device, it is characterized in that: the signal generating circuit of circuit board MCU and broadband signal generator forming circuit plate.
10. according to the said wideband omnidirectional radio shielding of claim 1 device; It is characterized in that: audio socket is connected with the audio board socket of circuit board through winding displacement; Wiring through circuit board is connected with TTL-232 level translator and circuit board MCU again, constitutes a RS232 serial data interface and a microcontroller communication circuit that exists with the audio sockets form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100252386A CN102611471A (en) | 2011-01-24 | 2011-01-24 | Broadband omni-directional radio shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100252386A CN102611471A (en) | 2011-01-24 | 2011-01-24 | Broadband omni-directional radio shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102611471A true CN102611471A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100252386A Pending CN102611471A (en) | 2011-01-24 | 2011-01-24 | Broadband omni-directional radio shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102611471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113034738A (en) * | 2019-12-23 | 2021-06-25 | U-希恩德国进入系统有限公司 | Method for correcting position detection of key element and access control system |
| US11680437B2 (en) | 2019-06-04 | 2023-06-20 | U-Shin Deutschland Zugangssysteme Gmbh | Motor vehicle access control method and access control system |
-
2011
- 2011-01-24 CN CN2011100252386A patent/CN102611471A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11680437B2 (en) | 2019-06-04 | 2023-06-20 | U-Shin Deutschland Zugangssysteme Gmbh | Motor vehicle access control method and access control system |
| CN113034738A (en) * | 2019-12-23 | 2021-06-25 | U-希恩德国进入系统有限公司 | Method for correcting position detection of key element and access control system |
| US11827177B2 (en) | 2019-12-23 | 2023-11-28 | U-Shin Deutschland Zugangssysteme Gmbh | Method for calibrating a position detection of a portable key element and access control system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |