CN207251819U - A kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference - Google Patents
A kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference Download PDFInfo
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- CN207251819U CN207251819U CN201721338163.6U CN201721338163U CN207251819U CN 207251819 U CN207251819 U CN 207251819U CN 201721338163 U CN201721338163 U CN 201721338163U CN 207251819 U CN207251819 U CN 207251819U
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Abstract
A kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference of the utility model belongs to the technical field of electromagnetic compatibility test, and structure has shielding box (1), conductive film (2), portable ups power (3), web camera (4), the first cable (5), the first fiber optical transceiver (6), optical fiber (7), the second fiber optical transceiver (8), the second cable (9) and remote control computer (10).The utility model collectively forms complete shield using shielding box and conductive film, portable ups power is used to provide independent power supply for web camera, the first fiber optical transceiver, the transmitted in both directions of audio-video signal and control signal is carried out using WDM optical fiber transmission system, solves monitored picture disruption caused by web camera is disturbed by strong electromagnetic radiation, the audio and video remote on-line monitoring of Device under test state under strong electromagnetic radiation environment is realized, is had broad application prospects in electromagnetic compatibility test field.
Description
Technical field
The utility model belongs to technical field of electromagnetic compatibility measurement, more specifically, being to be related to a kind of anti-electromagnetic-radiation to do
The audio and video remote online monitoring system disturbed.
Background technology
The state of real time monitoring Device under test is needed in radiated immunity test, while to avoid strong electromagnetic radiation to examination
Test the injury of personnel.Especially in strong electromagnetic radiation environment, the electric field strength of Device under test areas adjacent is up to hundreds of even
Tens of thousands of volt per metres, coupled interference voltage can be up to tens to hundreds of volts on the external cable of web camera, monitoring device
Itself it is subject to serious electromagnetic interference, the problem of monitored picture interruption occurs at the strong electromagnetic radiation interference effect moment.It is Chinese special
A kind of audio/video monitor and control system based on optical fiber transmission that sharp CN103945172A is announced by optical fiber transmit front-end camera and
The vision signal and audio signal of sound pick-up collection, but the fibre-optic transmission system (FOTS) can only carry out the one-way transmission of audio-video signal,
And front-end camera does not possess anti-strong electromagnetic radiation interference performance, actually it is difficult to meet Device under test in radiated immunity test
The remote on-line monitoring demand of state.Therefore, it is online to research and develop a kind of audio and video remote that can be worked under strong electromagnetic radiation environment
Monitoring system has broad application prospects and market Transformation Potential.
Utility model content
The technical problems to be solved in the utility model is to solve to supervise caused by web camera is disturbed by strong electromagnetic radiation
Control picture disruption, there is provided a kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference.
In order to solve the above-mentioned technical problem, the utility model uses following technical scheme：
A kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference, its structure have web camera 4, the first net
Line 5 and remote control computer 10, it is characterised in that structure also has shielding box 1, conductive film 2, portable ups power 3,
One fiber optical transceiver 6, optical fiber 7, the second fiber optical transceiver 8 and the second cable 9；
Portable ups power 3, web camera 4, the first cable 5 and the first fiber optical transceiver 6 are placed in the inside of shielding box 1,
Conductive film 2 pastes 4 camera lens of web camera reserved on 1 surface of shielding box and corresponds to hole location, and portable ups power 3 is
Web camera 4, the first fiber optical transceiver 6 provide independent power supply supply；The audio-video interface of web camera 4 passes through first
Cable 5 is connected with the electric signal interface of the first fiber optical transceiver 6；The optical signal interface of first fiber optical transceiver 6 and the one of optical fiber 7
End connection, the other end of optical fiber 7 are connected with the optical signal interface of the second fiber optical transceiver 8；The electric signal of second fiber optical transceiver 8
Interface is connected by the second cable 9 with the network interface of remote control computer 10.
First fiber optical transceiver 6 can specifically use such as lower structure：The electric signal interface of first fiber optical transceiver 6 point
It is not connected with the input terminal of wavelength 1550nm transmitting modules, the output terminal of 1310nm receiving modules being internally integrated, wavelength
The output terminal of 1550nm transmitting modules, the input terminal of 1310nm receiving modules are internally integrated with the first fiber optical transceiver 6 respectively
1550nm ports, the 1310nm ports of wavelength division multiplexer are connected, the public port of wavelength division multiplexer and the first fiber optical transceiver 6
Optical signal interface is connected；The electric signal interface is RJ45 interfaces, and the optical signal interface is SC type optical interfaces.
Second fiber optical transceiver 8 can specifically use such as lower structure：The optical signal interface of second fiber optical transceiver 8 with
The public port for the wavelength division multiplexer being internally integrated is connected, 1550nm ports, 1310nm ports and the second light of wavelength division multiplexer
Input terminal, the output terminal of 1310nm transmitting modules for the wavelength 1550nm receiving modules that fine transceiver 8 is internally integrated are connected, ripple
The output terminal of long 1550nm receiving modules, the input terminal of 1310nm the transmitting modules electric signal with the second fiber optical transceiver 8 respectively
Interface is connected, and the optical signal interface is SC type optical interfaces, and electric signal interface is RJ45 interfaces.
Beneficial effect：
1st, the audio and video remote online monitoring system of the anti-electromagnetic-radiation interference of the utility model uses shielding box and conduction
Film collectively forms complete shield, and uses portable ups power to be provided solely for web camera, the first fiber optical transceiver
Vertical power supply supply, solves monitored picture disruption caused by web camera is disturbed by strong electromagnetic radiation；
2nd, the audio and video remote online monitoring system of the anti-electromagnetic-radiation interference of the utility model uses wavelength-division multiplex optical fiber
Transmission system carries out the transmitted in both directions of audio-video signal and control signal, realizes Device under test state under strong electromagnetic radiation environment
Audio and video remote on-line monitoring, its electromagnetic compatibility test field has broad application prospects and market Transformation Potential.
Brief description of the drawings：
Fig. 1 is that a kind of overall structure of the audio and video remote online monitoring system of anti-electromagnetic-radiation interference of the utility model is shown
It is intended to.
Fig. 2 is a kind of internal structure schematic diagram of the first fiber optical transceiver 6 described in embodiment 2.
Fig. 3 is a kind of internal structure schematic diagram of the second fiber optical transceiver 8 described in embodiment 3.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, being given for example only property of following embodiments is said
It is bright, it is impossible to be interpreted as the limitation to this patent.
The overall structure of 1 the utility model of embodiment
Refering to Fig. 1, a kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference of the utility model is by shielding
Box 1, conductive film 2, portable ups power 3, web camera 4, the first cable 5, the first fiber optical transceiver 6, optical fiber 7, second
Fiber optical transceiver 8, the second cable 9 and remote control computer 10.
The material of the shielding box 1 is aluminium alloy, the hole of its 4 camera lens size of surface reservation networks video camera, internal
Place portable ups power 3, web camera 4, the first cable 5 and the first fiber optical transceiver 6.
The conductive film 2 pastes 4 camera lens of web camera reserved on 1 surface of shielding box and corresponds to hole location, its
Complete shield is collectively formed with shielding box 1, web camera 4 is effectively protected under strong electromagnetic radiation environment.
The portable ups power 3 is web camera 4, the first fiber optical transceiver 6 provides independent power supply supply,
Avoid causing equipment to be subject to strong electromagnetic radiation to disturb because of external power supply.
The audio-video signal of the web camera 4 Device under test state of collection reflection in real time, web camera 4
Audio-video interface is connected by the first cable 5 with the electric signal interface of the first fiber optical transceiver 6.
First fiber optical transceiver 6 is internally integrated wavelength 1550nm transmitting modules, 1310nm receiving modules and wavelength-division
Multiplexer, is separated into transmitting audio-video signal 1550nm light waves by the multiplexing optical signal transmitted in optical fiber 7 and receives control letter
Number with 1310nm light waves, while realize that audio-video signal transmitting that web camera 4 gathers and remote control computer 10 are sent
Control signal receive；Electric signal interface is RJ45 interfaces, and optical signal interface is SC type optical interfaces.
The optical fiber 7 is standard single-mode fiber, and two end interfaces are SC type optical interfaces, length according to Device under test position and
Depending on the distance between screened room, one end of optical fiber 7 is connected with the optical signal interface of the first fiber optical transceiver 6, optical fiber 7 it is another
End is connected with the optical signal interface of the second fiber optical transceiver 8.
Second fiber optical transceiver 8 is internally integrated wavelength 1550nm receiving modules, 1310nm transmitting modules and wavelength-division
Multiplexer, the multiplexing optical signal transmitted in optical fiber 7 is separated into and receives audio-video signal 1550nm light waves and emission control letter
Number with 1310nm light waves, while realize that audio-video signal that web camera 4 gathers receives and remote control computer 10 is sent
Control signal transmitting, optical signal interface is SC type optical interfaces, and electric signal interface is RJ45 interfaces.
The telecommunications that the network interface of the remote control computer 10 passes through the second cable 9 and the second fiber optical transceiver 8
The connection of number interface, and realize the remote control to functions such as the video recordings of web camera 4 using Network Video Surveillance software.
The connection relation of each several part is：Place portable ups power 3, web camera 4, the first cable in the inside of shielding box 1
5 and first fiber optical transceiver 6, conductive film 2 paste 4 camera lens of web camera reserved on 1 surface of shielding box and correspond to hole position
Put, portable ups power 3 is web camera 4, the first fiber optical transceiver 6 provides independent power supply supply；Web camera 4
Audio-video interface be connected by the first cable 5 with the electric signal interface of the first fiber optical transceiver 6；First fiber optical transceiver 6
Optical signal interface is connected with one end of optical fiber 7, and the other end of optical fiber 7 is connected with the optical signal interface of the second fiber optical transceiver 8；The
The electric signal interface of two fiber optical transceivers 8 is connected by the second cable 9 with the network interface of remote control computer 10.
The concrete structure of 2 first fiber optical transceiver of embodiment
As shown in Fig. 2, be a kind of internal structure schematic diagram of the first fiber optical transceiver 6 used in the utility model, in it
Portion is integrated with wavelength 1550nm transmitting modules, 1310nm receiving modules and wavelength division multiplexer, and wavelength division multiplexer will transmit in optical fiber 7
Multiplexing optical signal be separated into transmitting audio-video signal 1550nm light waves and receive control signal 1310nm light waves, 1550nm
The audio-video signal that web camera 4 gathers is modulated on 1550nm light waves by transmitting module, while 1310nm receiving modules will
The control signal that remote control computer 10 is sent is demodulated from 1310nm light waves to be come.
The concrete structure of 3 second fiber optical transceiver of embodiment
As shown in figure 3, be a kind of internal structure schematic diagram of the second fiber optical transceiver 8 used in the utility model, in it
Portion is integrated with wavelength 1550nm receiving modules, 1310nm transmitting modules and wavelength division multiplexer, is passed in wavelength division multiplexer separation optical fiber 7
Defeated multiplexing optical signal, which is separated into, receives audio-video signal 1550nm light waves and emissioning controling signal 1310nm light waves,
The audio-video signal that web camera 4 gathers is demodulated by 1550nm receiving modules from 1550nm light waves, while 1310nm
The control signal that remote control computer 10 is sent is modulated on 1310nm light waves by transmitting module.
The operation principle of 4 the utility model of embodiment
Portable ups power 3, web camera 4, the first cable 5 and the first fiber optical transceiver 6 are placed in the inside of shielding box 1,
Conductive film 2 pastes 4 camera lens of web camera reserved on 1 surface of shielding box and corresponds to hole location, shielding box 1 and conductive film
2 collectively form complete shield, and web camera 4 is effectively protected under strong electromagnetic radiation environment.Portable ups power 3
Independent power supply supply is provided for web camera 4, the first fiber optical transceiver 6, avoids causing equipment to be subject to because of external power supply
Strong electromagnetic radiation disturbs.
The audio-video interface of web camera 4 is connected by the electric signal interface of the first cable 5 and the first fiber optical transceiver 6
Connect；The optical signal interface of first fiber optical transceiver 6 is connected with one end of optical fiber 7, the other end of optical fiber 7 and the second fiber optical transceiver
8 optical signal interface connection；The electric signal interface of second fiber optical transceiver 8 passes through the second cable 9 and remote control computer 10
Network interface connection.Audio and video are realized using wavelength-division multiplex technique between first fiber optical transceiver 6 and the second fiber optical transceiver 8
The transmitted in both directions of signal and control signal, 6 inside wavelength division multiplexer of the first fiber optical transceiver believe the multiplexed optical transmitted in optical fiber 7
Number it is separated into transmitting audio-video signal 1550nm light waves and receives control signal 1310nm light waves, the second fiber optical transceiver 8
The multiplexing optical signal transmitted in optical fiber 7 is separated into and receives audio-video signal 1550nm light waves and transmitting by internal wavelength division multiplexer
Control signal 1310nm light waves.
The audio-video signal of the real-time collecting test region reflection Device under test state of web camera 4, web camera 4
Audio-video interface is connected by the first cable 5 with the electric signal interface of the first fiber optical transceiver 6.When the first fiber optical transceiver 6 connects
, will by the 1550nm transmitting modules inside the first fiber optical transceiver 6 when receiving the audio-video signal of the collection of web camera 4
The audio-video signal that web camera 4 gathers is modulated on 1550nm light waves.The optical signal interface and light of first fiber optical transceiver 6
One end connection of fibre 7, using the anti-electromagnetic-radiation interference of optical fiber 7, is lost the modulated 1550nm optical signals of low characteristic transmission,
The audio-video signal that web camera 4 gathers is transferred into the monitoring place away from test zone.The other end of optical fiber 7 and second
The optical signal interface of fiber optical transceiver 8 connects, and the 1550nm receiving modules inside the second fiber optical transceiver 8 receive web camera
The audio-video signal of 4 collections, the audio-video signal that web camera 4 gathers is demodulated from 1550nm light waves.Second light
The electric signal interface of fine transceiver 8 is connected by the second cable 9 with the network interface of remote control computer 10, so as to fulfill
The remote online of Device under test state is monitored.
Testing crew sends the control signal to functions such as the video recordings of web camera 4 by remote control computer 10, far
The network interface of process control computer 10 is connected by the second cable 9 with the electric signal interface of the second fiber optical transceiver 8.When second
When fiber optical transceiver 8 receives the control signal that remote control computer 10 is sent, inside the second fiber optical transceiver 8
The control signal that remote control computer 10 is sent is modulated on 1310nm light waves by 1310nm transmitting modules.Second optical fiber transceiving
The optical signal interface of device 8 is connected with the other end of optical fiber 7, and using the anti-electromagnetic-radiation interference of optical fiber 7, low characteristic transmission is lost
Modulated 1310nm optical signals, the control signal that remote control computer 10 is sent are transferred into the test section of high electric-field intensity
Domain.One end of optical fiber 7 is connected with the optical signal interface of the first fiber optical transceiver 6, the 1310nm inside the first fiber optical transceiver 6
Receiving module receives the control signal that remote control computer 10 is sent, the control signal that remote control computer 10 is sent
Demodulate and from 1310nm light waves.The electric signal interface of first fiber optical transceiver 6 passes through the first cable 5 and web camera 4
Audio-video interface connection, it is achieved thereby that to web camera 4 video recording etc. function remote control.
Claims (3)
1. a kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference, its structure have web camera (4), the first net
Line (5) and remote control computer (10), it is characterised in that structure also has shielding box (1), conductive film (2), portable UPS
Power supply (3), the first fiber optical transceiver (6), optical fiber (7), the second fiber optical transceiver (8) and the second cable (9)；
Portable ups power (3), web camera (4), the first cable (5) and the first optical fiber transceiving are placed inside shielding box (1)
Device (6), conductive film (2) pastes web camera (4) camera lens reserved on shielding box (1) surface and corresponds to hole location, portable
Formula ups power (3) is web camera (4), the first fiber optical transceiver (6) provides independent power supply supply；Web camera (4)
Audio-video interface be connected by the first cable (5) with the electric signal interface of the first fiber optical transceiver (6)；First fiber optical transceiver
(6) optical signal interface is connected with the one end of optical fiber (7), the other end of optical fiber (7) and the optical signal of the second fiber optical transceiver (8)
Interface connects；The electric signal interface of second fiber optical transceiver (8) passes through the second cable (9) and the net of remote control computer (10)
Network interface connects.
2. a kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference according to claim 1, its feature exist
In described the first fiber optical transceiver (6) concrete structure is：The electric signal interface of first fiber optical transceiver (6) respectively with inside
Input terminal, the output terminal of 1310nm receiving modules of integrated wavelength 1550nm transmitting modules are connected, wavelength 1550nm transmitting moulds
The wavelength division multiplexer that the output terminal of block, the input terminal of 1310nm receiving modules are internally integrated with the first fiber optical transceiver (6) respectively
1550nm ports, 1310nm ports be connected, the public port of wavelength division multiplexer and the optical signal of the first fiber optical transceiver (6) connect
Mouth is connected；The electric signal interface is RJ45 interfaces, and the optical signal interface is SC type optical interfaces.
3. a kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference according to claim 1 or 2, its feature
It is, described the second fiber optical transceiver (8) concrete structure is：The optical signal interface of second fiber optical transceiver (8) collects with internal
Into the public port of wavelength division multiplexer be connected, 1550nm ports, 1310nm ports and the second optical fiber transceiving of wavelength division multiplexer
Input terminal, the output terminal of 1310nm transmitting modules for the wavelength 1550nm receiving modules that device (8) is internally integrated are connected, wavelength
The output terminal of 1550nm receiving modules, the input terminal of 1310nm the transmitting modules electric signal with the second fiber optical transceiver (8) respectively
Interface is connected, and the optical signal interface is SC type optical interfaces, and electric signal interface is RJ45 interfaces.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338163.6U CN207251819U (en) | 2017-10-17 | 2017-10-17 | A kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721338163.6U CN207251819U (en) | 2017-10-17 | 2017-10-17 | A kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613265A (en) * | 2017-10-17 | 2018-01-19 | 吉林大学 | A kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference |
| CN111162843A (en) * | 2019-09-30 | 2020-05-15 | 上海机电工程研究所 | Signal measurement method and system based on strong electromagnetic pulse environment |
| CN112737701A (en) * | 2020-12-30 | 2021-04-30 | 石家庄科林电气股份有限公司 | Equipment for filtering interference in communication line in electromagnetic compatibility test |
-
2017
- 2017-10-17 CN CN201721338163.6U patent/CN207251819U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613265A (en) * | 2017-10-17 | 2018-01-19 | 吉林大学 | A kind of audio and video remote online monitoring system of anti-electromagnetic-radiation interference |
| CN111162843A (en) * | 2019-09-30 | 2020-05-15 | 上海机电工程研究所 | Signal measurement method and system based on strong electromagnetic pulse environment |
| CN112737701A (en) * | 2020-12-30 | 2021-04-30 | 石家庄科林电气股份有限公司 | Equipment for filtering interference in communication line in electromagnetic compatibility test |
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