CN203912061U - Monitoring camera having cell phone signal detecting and shielding function - Google Patents
Monitoring camera having cell phone signal detecting and shielding function Download PDFInfo
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- CN203912061U CN203912061U CN201420274479.3U CN201420274479U CN203912061U CN 203912061 U CN203912061 U CN 203912061U CN 201420274479 U CN201420274479 U CN 201420274479U CN 203912061 U CN203912061 U CN 203912061U
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- 238000012544 monitoring process Methods 0.000 title abstract description 23
- 230000000007 visual effect Effects 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 238000010295 mobile communication Methods 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
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Abstract
The utility model relates to a monitoring camera having a cell phone signal detecting and shielding function. The monitoring camera includes a monitoring camera unit. The monitoring camera is characterized in that a housing of the monitoring camera unit is provided with a log periodic antenna used for a cell phone signal detecting and shielding device and connected with the cell phone signal detecting and shielding device through a feed line. According to the utility model, the monitoring camera realizes video monitoring and cell phone signal monitoring within the same area. A monitor can adjust the cell phone signal monitoring area through monitoring pictures and a camera holder and the monitoring can be arranged reasonably without affecting the monitoring strength of the cell phone signal monitoring area. Interference of a noise source to the monitoring area is eliminated. Electromagnetic pollution outside the monitoring area is reduced. At the same time, the monitor can evaluate cell phone signal monitoring effect through the monitoring pictures.
Description
Technical field
The utility model patent relates to video monitoring and field of radio frequency, the application real-time mainly for needs, accurate analysis mobile phone is detected result, as prison, examination hall etc., also be applicable to need mobile phone detecting security protection but periphery electromagnetic environment complexity or the place to electromagnetic pollution sensitivity, as workshop, base station etc.
Background technology
Video monitoring is the important component part of safety and protection system, directly perceived with it, accurately, in time and the information content abundant and be widely used in many occasions, current Video Supervision Technique is mainly for visible spectrum and infrared spectrum (night vision), and the shaped angles in its defence area is mainly determined by photo-sensitive cell and the camera lens of video camera.
Mobile phone detecting shield technology, is immediately to monitor for mobile phone signal, the safety information product of alarm or the precautionary measures of taking the initiative in the time finding mobile communication.Sensitivity and the transmitting power size of the module of mobile phone detecting shielding device own, directly determine the size in its defence area, and the antenna system and the parameter that adopt, defines the directional characteristic in defence area.
Because mobile communication electric wave signal is through encrypting modulation, therefore existing mobile phone detection techniques is still to detect in specific channel electric wave liveness as main, not restituted signal, in the time there is the clutter emission source of band overlapping in defence area, be easy to report by mistake, and the workload in wrong report source, location is larger and very numerous and diverse.
Mobile phone shielding technology is in specific channel, to send to disturb ripple and carry out communicating by letter between interference handset and base station, this just inevitably causes electromagnetic pollution, mobile phone shielding device generally uses omnidirectional antenna, also there is minority type employing plate aerial, the ripple transmitting of disturbing of omnidirectional antenna is omnidirectional, easily the equipment beyond defence area is impacted, though and plate aerial can control disturb ripple sense and volume little, but its half-power angle is too narrow, directly have influence on defence area scope angle, when equipment setting height(from bottom) and angle not at that time, can reduce and disturb ripple coverage, reduce the security protection ability in communication defence area, and as many plate aerial type equipment are installed, to promote again engineering cost.
Utility model content
For addressing the above problem, the utility model provides a kind of CCTV camera with mobile phone detecting function of shielding, possesses the characteristic that video defence area and mobile phone defence area are coincided.
The utility model adopts following scheme to realize: a kind of CCTV camera with mobile phone detecting function of shielding, comprise CCTV camera, it is characterized in that: on the casing of described CCTV camera, be provided with the logarithm antenna of mobile phone detecting shielding device, described logarithm antenna is connected with described mobile phone detecting shielding device by feeder line.
In the utility model one embodiment, described logarithm antenna has some.
In the utility model one embodiment, described logarithm antenna has 7, and wherein 1 width is the large size antenna of 27 centimetres, and all the other 6 is the small size antenna of approximately 14 centimetres, 10 centimetres of width.
In the utility model one embodiment, described logarithm antenna is to be parallel to each other and the mode of interval preset distance is installed in the accessory holder that is arranged at described casing, wherein the distance of large size antenna and nearest small size antenna should be the multiple of 17cm or 17cm, and the distance between small size antenna should be the multiple of 10cm or 10cm.
In the utility model one embodiment, described video camera is rifle bolt, and its visual angle is the camera lens that is not less than 90 degree, and its sensing is identical with described logarithm antenna direction, and is not less than the angle of declination of 30 degree.
In the utility model one embodiment, described mobile phone detecting shielding device can be installed in the mounting structure of described CCTV camera.
What the utility model adopted is logarithm periodic antenna, be called for short logarithm antenna, such antenna has the characteristic of directional antenna, but half-power angle is much larger than plate aerial, and the spatial form of its lobe is similar cover bowl-shape, the monitoring visual field that is easy to same video camera produces and overlaps, and is applicable to the technical goal that the utility model will be reached.
The utility model adopts logarithm antenna to belong to directional antenna, its index is better than omnidirectional antenna conventionally, therefore the detecting of the mobile phone of compatible commercially available employing omnidirectional antenna shields device well, and the antenna of the mobile phone detecting shielding device of use omnidirectional antenna is conventionally interchangeable, therefore when commercially available mobile phone detecting shielding device docks with the utility model finished product, only original omnidirectional antenna need be pulled down, antennal interface and logarithm periodic antenna of the present utility model are connected with feeder line.It is simple in structure, has solved in prior art and has existed mobile phone detecting security protection region to be difficult to clearly demarcate, the loaded down with trivial details problem of interlock link between mobile phone detecting security protection and video monitoring.
Brief description of the drawings
Fig. 1 is the utility model configuration state schematic diagram.
Fig. 2 is another view of the utility model structure.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
The present embodiment provides a kind of CCTV camera with mobile phone detecting function of shielding, comprise CCTV camera, it is characterized in that: on the casing of described CCTV camera, be provided with the logarithm antenna of mobile phone detecting shielding device, described logarithm antenna is connected with described mobile phone detecting shielding device by feeder line.
In the time that whether the utility model only has mobile communication for detecting, only need a wideband logarithm antenna to monitor, if but the utility model when mobile communication, needs many antennas or increases correlation module to send the ripple of disturbing of multiband for detecting and shielding, carefully states as follows simultaneously.
Because the frequency range of mobile communication is wider, mainly be divided into 806 ~ 960MHz and 1710 ~ 2700MHz two parts, can be divided into again eight frequency ranges by operator and application, respectively CDMA, GSM, DCS, WCDMA, TD-F, TD-A, TD-LTE (two sections of 4G), make electromagnetism disturb ripple and cover this eight frequency ranges, can have two kinds of modes, the one, launch respectively the ripple of disturbing of eight frequency ranges with eight antennas, the 2nd, with mixer different frequency range disturb ripple merge after again by an antenna transmission.
The operating frequency of logarithm periodic antenna is lower, antenna size is larger, the size that can simultaneously cover the wideband logarithm antenna of multiple frequency ranges is determined by low-limit frequency, length in the length and width gauge of logarithm antenna is maximum, thickness is less, with regard to the physical dimension of common gunlock shell and common The Cloud Terrace, and be not suitable for installing multiple large-sized antennas, and the mixer of multiband is expensive, therefore this patent is meeting under the prerequisite of transmitting-receiving performance, press the height of working frequency range, adopt respectively the logarithm antenna of three kinds of sizes, and use different connected modes by its size.Select in the manufacture craft of logarithm antenna simultaneously, adopt printed circuit board technology, to optimize size and the intensity of miniature antenna, be convenient to be arranged on camera housing support.
The operating frequency of CDMA and GSM is minimum, therefore logarithm antenna size used is also maximum, in the time using printed circuit technology to make, length can be controlled in 27cm, the utility model adopts the antenna of same dimensions to these two frequency ranges, and uses the two-way mixer of cdma/gsm that the ripple of disturbing of these two frequency ranges is combined in a passage, and these two passages of the cdma and gsm of detecting shroud module are first connected with mixer, mixer is connected on antenna, and two passages share a logarithm antenna.
When device just is used mobile phone detecting function, while disturbing ripple without transmission, only need to install the logarithm antenna of a length 27cm mentioned above, the logarithm antenna of this size can be designed as wide frequency antenna, receive frequency is covered to DCS, WCDMA, TD-F, tetra-frequency ranges of TD-A, meets the reception demand of mobile phone detecting module to the each frequency range of mobile communication.
DCS, WCDMA, TD-F, tetra-band frequencies of TD-A are higher, therefore logarithm antenna used is small-sized, in the time using printed circuit technology to make, length can be controlled in 14cm, therefore the logarithm antenna size of these four frequency ranges is the same, and four frequency ranges are carried out receiving and transmitting signal with four miniature logarithm antennas respectively.
Two frequency ranges of TD-LTE belong to the communication frequency of 4G cell phone, logarithm antenna size minimum used, and in the time using printed circuit technology to make, length is 10cm only, can cover with two measure-alike microcell antennas.
Preferably, in the present embodiment, as depicted in figs. 1 and 2, described logarithm antenna has 7, and wherein 1 width is the large size antenna 5 of 27 centimetres, approximately 14 centimetres of small size antennas 4 of all the other 6 width.Described logarithm antenna is parallel to each other and interval preset distance is installed and is arranged on the support 3 of described casing 1, and each antenna can not be installed by anteroposterior position, and antenna adopts half-wave dipole, needs to adopt the good feeder line of shielding and detecting to shield device and is connected.In order to prevent the phase mutual interference between antenna, wherein the distance of large size antenna and nearest small size antenna should be the multiple of 17cm or 17cm, and the distance between small size antenna should be the multiple of 10cm or 10cm.
When the anti-crosstalk circuit of the each passage of detecting shielding device built-in aerial, when preventing the phase mutual interference between multi-path antenna, mounting distance between each antenna can reduce by its circuit index, antenna distance mentioned above, the sight when being applicable to detecting shielding device module and the each passage of antenna not done anti-crosstalk and processed.
The half-power angle of the wideband logarithm periodic antenna of mobile phone frequency range is generally level to approximately 100～65 degree, vertically to approximately 75～60 degree, therefore video camera selects visual angle to be not less than the camera lens of 90 degree, and be not less than the angle of declination of 30 degree, the gunlock form that employing is easy to change camera lens and adjusts lens parameters, this gunlock shell is metal, it can cause interference to the electromagnetic wave transmitting-receiving of antenna to electric wave reflection, therefore gunlock shell 1 of the present utility model and mounting bracket 2 all adopt reliable ground, to reduce the impact of reflected wave on antenna; Gunlock The Cloud Terrace is depending on concrete load-bearing, because gunlock monitoring position is relatively fixing, therefore when mounted can be by adjusting detector sensitivity/transmit power, in antenna half-power angle, adjust sensitizing range, defence area, attendant can directly coordinate with front end commissioning staff on monitored picture, and whether the overlapping degree of understanding defence area sensitive area and monitored picture reaches engine request.Also can delimit behind mobile phone defence area, with lens zoom or the mode of replacing camera lens, mate with mobile phone defence area at the visual angle that converts monitored picture.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (6)
1. the CCTV camera with mobile phone detecting function of shielding, comprise CCTV camera, it is characterized in that: on the casing of described CCTV camera, be provided with the logarithm antenna of mobile phone detecting shielding device, described logarithm antenna is connected with described mobile phone detecting shielding device by feeder line.
2. the CCTV camera with mobile phone detecting function of shielding according to claim 1, is characterized in that: described logarithm antenna has some.
3. the CCTV camera with mobile phone detecting function of shielding according to claim 1, is characterized in that: in described logarithm antenna, 1 length is the large size antenna of 27 centimetres, and all the other are the small size antenna of approximately 14 centimetres, 10 centimetres of length.
4. the CCTV camera with mobile phone detecting function of shielding according to claim 3, it is characterized in that: described logarithm antenna, be parallel to each other and interval preset distance is arranged on the support of described casing, wherein the distance of large size antenna and nearest small size antenna should be the multiple of 17cm or 17cm, and the distance between small size antenna should be the multiple of 10cm or 10cm.
5. the CCTV camera with mobile phone detecting function of shielding according to claim 4, is characterized in that: described video camera is rifle bolt, and its visual angle is the camera lens that is not less than 90 degree, and its sensing is identical with antenna direction, and is not less than the angle of declination of 30 degree.
6. the CCTV camera with mobile phone detecting function of shielding according to claim 1, is characterized in that: described mobile phone detecting shielding device is to be integrated in the mounting structure of described CCTV camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274479.3U CN203912061U (en) | 2014-05-27 | 2014-05-27 | Monitoring camera having cell phone signal detecting and shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274479.3U CN203912061U (en) | 2014-05-27 | 2014-05-27 | Monitoring camera having cell phone signal detecting and shielding function |
Publications (1)
| Publication Number | Publication Date |
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| CN203912061U true CN203912061U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420274479.3U Expired - Lifetime CN203912061U (en) | 2014-05-27 | 2014-05-27 | Monitoring camera having cell phone signal detecting and shielding function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170166A (en) * | 2017-07-14 | 2017-09-15 | 四川中科通服智能安防科技有限公司 | Defence area supervising device and intelligent security guard cloud platform |
| CN107995387A (en) * | 2016-10-27 | 2018-05-04 | 光宝电子(广州)有限公司 | Monitoring arrangement |
| RU208276U1 (en) * | 2021-03-10 | 2021-12-13 | Общество с ограниченной ответственностью "Эй Ви Эй Системс" | Antenna module housing |
-
2014
- 2014-05-27 CN CN201420274479.3U patent/CN203912061U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107995387A (en) * | 2016-10-27 | 2018-05-04 | 光宝电子(广州)有限公司 | Monitoring arrangement |
| CN107170166A (en) * | 2017-07-14 | 2017-09-15 | 四川中科通服智能安防科技有限公司 | Defence area supervising device and intelligent security guard cloud platform |
| RU208276U1 (en) * | 2021-03-10 | 2021-12-13 | Общество с ограниченной ответственностью "Эй Ви Эй Системс" | Antenna module housing |
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