CN112804025B - Electromagnetic shielding room and communication system - Google Patents
Electromagnetic shielding room and communication system Download PDFInfo
- Publication number
- CN112804025B CN112804025B CN201911113752.8A CN201911113752A CN112804025B CN 112804025 B CN112804025 B CN 112804025B CN 201911113752 A CN201911113752 A CN 201911113752A CN 112804025 B CN112804025 B CN 112804025B
- Authority
- CN
- China
- Prior art keywords
- communication
- electromagnetic shielding
- lifi
- shielding chamber
- communication terminal
- Prior art date
- 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.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 247
- 230000003287 optical effect Effects 0.000 claims abstract description 89
- 239000002184 metal Substances 0.000 claims abstract description 40
- 239000013307 optical fiber Substances 0.000 claims abstract description 38
- 238000012360 testing method Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000005670 electromagnetic radiation Effects 0.000 description 6
- 230000003993 interaction Effects 0.000 description 6
- 238000003491 array Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/60—Jamming involving special techniques
- H04K3/68—Jamming involving special techniques using passive jamming, e.g. by shielding or reflection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
Abstract
The application proposes an electromagnetic shielding room and a communication system, wherein the electromagnetic shielding room comprises: a shielded room housing and a LIFI module for optical communications; the LIFI module is arranged in the shielding chamber shell and comprises a metal shell, a communication optical fiber, an optical transceiver and a power supply unit for supplying power to the optical transceiver; the optical transceiver is arranged in the metal shell and is connected with one end of the communication optical fiber; the other end of the communication optical fiber passes through the metal shell and extends to the outside of the shielding chamber shell; the power supply unit is arranged in the metal shell and is electrically connected with the optical transceiver; the metal shell is provided with a waveguide window corresponding to the position of the optical transceiver, and the waveguide window is used for transmitting light rays emitted and received by the optical transceiver. Therefore, based on LIFI communication, the communication requirement under the shielding scene can be expanded, and because LIFI communication is wireless communication, compared with a wired communication mode, the LIFI communication has higher convenience and practicability, and the communication experience of a user is further improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an electromagnetic shielding room and a communications system.
Background
The electromagnetic environment in the life is complex, and the equipment is easy to interfere with various signals from the outside and/or generate internal signal leakage. For some precise instruments and equipment, the use of the precise instruments and equipment is affected due to various interference of external signals, and the obtained test results are inaccurate, so that most of the testing work of the instruments and equipment needs to be performed in an electromagnetic shielding chamber to obtain accurate test results.
However, when testing is performed in the electromagnetic shielding room, the tester is isolated from the outside and cannot communicate with the outside, because the current communication methods, such as Cellular (Cellular) communication, wireless fidelity (Wireless Fidelity, abbreviated as WIFI) communication, bluetooth (abbreviated as BT) communication, etc., all use electromagnetic waves as transmission media, and the electromagnetic waves are shielded by the electromagnetic shielding room and cannot transmit signals.
In the related art, a user may open a door of an electromagnetic shielding room or communicate with the outside of the electromagnetic shielding room using a terminal device connected to a network cable. However, the manner in which the user opens the door of the screening room, the device is still subject to interference from external signals, while the manner in which the user communicates by wire is less convenient and practical.
Disclosure of Invention
The present application aims to solve, at least to some extent, one of the technical problems in the related art.
The application provides an electromagnetic shielding room and communication system to realize carrying out normal communication under shielding environment, and can not interfere with other instrument and equipment's normal work, the practicality is stronger, can guarantee tester's communication demand, and instrument and equipment's test demand, improve user's use experience. In addition, based on LIFI communication, the communication requirement under the shielding scene can be expanded, and in addition, because LIFI communication is wireless communication, compared with a wired communication mode, the convenience and the practicability are higher, and the communication experience of a user is further improved.
An embodiment of a first aspect of the present application proposes an electromagnetic shielding chamber, including: a shielded room housing and a LIFI module for optical communications;
the LIFI module is arranged in the shielding chamber shell and comprises a metal shell, a communication optical fiber, an optical transceiver and a power supply unit for supplying power to the optical transceiver;
the optical transceiver is arranged in the metal shell and is connected with one end of the communication optical fiber; the other end of the communication optical fiber passes through the metal shell and extends to the outside of the shielding chamber shell;
the power supply unit is arranged inside the metal shell and is electrically connected with the optical transceiver;
the metal shell is provided with a waveguide window corresponding to the position of the optical transceiver, and the waveguide window is used for transmitting light rays emitted and received by the optical transceiver.
The electromagnetic shielding chamber comprises a shielding chamber shell and a LIFI module for optical communication; the LIFI module is arranged in the shielding chamber shell and comprises a metal shell, a communication optical fiber, an optical transceiver and a power supply unit for supplying power to the optical transceiver; the optical transceiver is arranged in the metal shell and is connected with one end of the communication optical fiber; the other end of the communication optical fiber passes through the metal shell and extends to the outside of the shielding chamber shell; the power supply unit is arranged in the metal shell and is electrically connected with the optical transceiver; the metal shell is provided with a waveguide window corresponding to the position of the optical transceiver, and the waveguide window is used for transmitting light rays emitted and received by the optical transceiver. In this application, because LIFI module adopts the mode of optical communication, can not produce electromagnetic interference, also can not receive electromagnetic signal's influence, can carry out normal communication under shielding environment to can not interfere the normal work of other instrument and equipment, the practicality is stronger, can guarantee tester's communication demand to and instrument and equipment's test demand, improve user's use experience. In addition, based on LIFI communication, the communication requirement under the shielding scene can be expanded, and in addition, because LIFI communication is wireless communication, compared with a wired communication mode, the convenience and the practicability are higher, and the communication experience of a user is further improved.
Embodiments of a second aspect of the present application provide a communication system, including: an electromagnetic shielding chamber according to an embodiment of the first aspect of the present application includes: a first communication terminal and a second communication terminal;
the first communication terminal is positioned in the electromagnetic shielding chamber and is used for communicating with the LIFI module in the electromagnetic shielding chamber, so that the LIFI module can transmit first communication data sent by the first communication terminal to the outside of the electromagnetic shielding chamber through a communication optical fiber;
the second communication terminal is positioned outside the electromagnetic shielding chamber, connected with the communication optical fiber and used for acquiring the first communication data.
According to the communication system, the first communication terminal and the second communication terminal adopt the LIFI communication mode to conduct data interaction, electromagnetic interference cannot be generated due to LIFI communication, the influence of electromagnetic signals cannot be received, normal communication can be conducted under a shielding environment, normal operation of other instrument equipment cannot be interfered, the practicability is high, the communication requirements of testers and the testing requirements of instrument equipment can be guaranteed, and the use experience of users is improved. In addition, based on LIFI communication, the communication requirement under the shielding scene can be expanded, and in addition, because LIFI communication is wireless communication, compared with a wired communication mode, the convenience and the practicability are higher, and the communication experience of a user is further improved.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a conventional wired communication scheme;
FIG. 2 is a schematic structural diagram of an electromagnetic shielding chamber according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a LIFI network connection in an embodiment of the present application;
FIG. 4 is a schematic diagram of a connection mode of optical communication in an electromagnetic shielding room according to an embodiment of the present application;
fig. 5 is a schematic diagram two of an electromagnetic shielding indoor optical communication connection mode in the embodiment of the present application;
fig. 6 is a schematic structural diagram of a communication system according to a second embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the prior art, referring to fig. 1, a user in an electromagnetic shielding room can connect a terminal device to a network in a wired manner to communicate with the outside.
However, the wired connection is very poor in convenience and practicality, and is limited to a terminal device with a wide area network (Wide Area Network, abbreviated as WAN) interface, but cannot be used for mobile devices such as mobile phones, tablet computers, bluetooth headsets, etc. which can only be connected wirelessly.
The application mainly solves the technical problems that the wired connection mode in the prior art is poor in convenience and practicality, and provides an electromagnetic shielding chamber.
The electromagnetic shielding chamber comprises a shielding chamber shell and a LIFI module for optical communication; the LIFI module is arranged in the shielding chamber shell and comprises a metal shell, a communication optical fiber, an optical transceiver and a power supply unit for supplying power to the optical transceiver; the optical transceiver is arranged in the metal shell and is connected with one end of the communication optical fiber; the other end of the communication optical fiber passes through the metal shell and extends to the outside of the shielding chamber shell; the power supply unit is arranged in the metal shell and is electrically connected with the optical transceiver; the metal shell is provided with a waveguide window corresponding to the position of the optical transceiver, and the waveguide window is used for transmitting light rays emitted and received by the optical transceiver. In this application, because LIFI module adopts the mode of optical communication, can not produce electromagnetic interference, also can not receive electromagnetic signal's influence, can carry out normal communication under shielding environment to can not interfere the normal work of other instrument and equipment, the practicality is stronger, can guarantee tester's communication demand to and instrument and equipment's test demand, improve user's use experience. In addition, based on LIFI communication, the communication requirement under the shielding scene can be expanded, and in addition, because LIFI communication is wireless communication, compared with a wired communication mode, the convenience and the practicability are higher, and the communication experience of a user is further improved.
An electromagnetic shield room and a communication system according to an embodiment of the present application are described below with reference to the drawings. Before describing the embodiments of the present application in detail, for ease of understanding, the general technical words of the present application will be first introduced:
an electromagnetic shielding room is an important content in the field of electromagnetic compatibility (Electro Magnetic Compatibility, abbreviated as EMC), the electromagnetic shielding room is a steel plate house, and a cold-rolled steel plate is a main shielding material of the electromagnetic shielding room. The electromagnetic shielding chamber comprises six general house elements such as a six-sided shell, a door, a window and the like, only strict electromagnetic sealing performance is required, and all the inlet and outlet pipelines are correspondingly shielded, so that electromagnetic radiation is blocked from entering and exiting.
LIFI (Light Fidelity) is a Light internet surfing technology, and Light emitted by an LED illuminating lamp is used as a transmission tool of network signals to perform data transmission, so that illumination internet surfing is realized. LIFI has the characteristics of low radiation, low energy consumption and low carbon and environmental protection, and gradually becomes a research hotspot in the field of Internet.
Fig. 2 is a schematic structural diagram of an electromagnetic shielding chamber according to an embodiment of the present application.
As shown in fig. 2, the electromagnetic shielding chamber 100 may include: a shielded room housing 120 and a LIFI module 110 for optical communication.
The LIFI module 110 is disposed inside the shielding chamber housing 120, and includes a metal housing 111, a communication optical fiber 112, an optical transceiver 113, and a power supply unit 114 for supplying power to the optical transceiver 113.
Wherein, the optical transceiver 113 is disposed inside the metal housing 111 and connected to one end of the communication optical fiber 112; the other end of the communication fiber 112 passes through the metal housing 111 and extends outside the shield room housing 120.
The power supply unit 114 is disposed inside the metal housing 111 and electrically connected to the optical transceiver 113.
In this embodiment, the power supply unit 114 may provide power to the optical transceiver 113, so that the optical transceiver 113 can transmit optical signals and receive optical signals.
The metal housing 111 is provided with a waveguide window corresponding to the position of the optical transceiver 113, and the waveguide window is used for transmitting light rays emitted and received by the optical transceiver 113.
In the embodiment of the application, the waveguide window is used for shielding electromagnetic waves by utilizing the principle of waveguide high-pass filtering, namely, the waveguide passes electromagnetic waves with the frequency higher than the cutoff frequency and attenuates electromagnetic waves with the frequency lower than the cutoff frequency, and the attenuation (shielding effectiveness) is proportional to the length of the waveguide. By arranging the waveguide window at the position of the metal shell 111 corresponding to the optical transceiver 113, electromagnetic radiation can be cut off on the premise of not obstructing air circulation, and light rays emitted by the optical transceiver 113 and received light rays are transmitted, so that the sending quality and the receiving quality of optical signals are ensured, and the waveguide window also has the functions of air inlet, air exhaust, pressure relief and the like.
In this embodiment, the communication terminal located inside the electromagnetic shielding room 100 may communicate with the outside in a LIFI communication manner, and specifically, the communication terminal may be a terminal device with a LIFI module, for example, in order to ensure communication quality, the LIFI module may be disposed on top of the communication terminal, for example, the LIFI module may be integrated on a camera of the communication terminal. When the communication terminal in the electromagnetic shielding room 100 wants to communicate with the outside, the data can be sent outwards through the LIFI module of the communication terminal, and the sent data is transmitted to the outside of the electromagnetic shielding room 100 through the communication optical fiber 112 by the LIFI module 110 in the electromagnetic shielding room 100.
In this application, because LIFI module 110 adopts the mode of optical communication, can not produce electromagnetic interference, also can not receive electromagnetic signal's influence, can carry out normal communication under shielding environment to can not interfere the normal work of other instrument and equipment, the practicality is stronger, can guarantee tester's communication demand to and instrument and equipment's test demand, improve user's use experience. In addition, the communication terminal adopts LIFI communication and can communicate with the outside through voice or data service (for example, mobile equipment such as mobile phones, tablet computers and the like can send data such as voice, text, pictures and videos), compared with the prior art, the communication terminal adopts wired communication and can only communicate with the outside through data service (for example, electronic equipment with network cable interfaces such as computers or notebooks and the like can send data such as text, pictures and videos), so that the content of information interaction can be enriched, and the user experience is further improved. In addition, based on LIFI communication, the communication requirement under the shielding scene can be expanded, and because LIFI communication is wireless communication, compared with a traditional wired communication mode, the LIFI communication has higher convenience, and the communication experience of a user is further improved.
The communication terminal may be an electronic device with a network cable interface, such as a computer or a notebook computer, or may be a mobile device, such as a mobile phone, a tablet computer, a bluetooth headset, etc., so that the communication terminal may not be limited to a traditional wired communication manner when communicating with the outside in the electromagnetic shielding room 100, and the practicability is high.
As an application scenario, referring to fig. 3, it is assumed that a plurality of communication terminals, that is, a device a, a device B, a device C, and a device D, are located inside the electromagnetic shielding room, where the device a, the device B, the device C, and the device D may be connected to the LIFI module (or called the LIFI anchor point) of the electromagnetic shielding room through their own LIFI modules, respectively, so as to perform data interaction. That is, each device in the local area network may be connected to the LIFI module of the electromagnetic shielding chamber through its own LIFI module to perform data interaction.
As another application scenario, it is assumed that a communication terminal located inside the electromagnetic shielding room is a device a, a communication terminal located outside the electromagnetic shielding room is a device F, and the device F may be connected to a communication optical fiber. When the device a communicates with the device F, the device a may align its LIFI module with the LIFI module in the electromagnetic shielding chamber (or referred to as the LIFI anchor point), so that the device a may transmit data from the LIFI module in the electromagnetic shielding chamber to the device F outside the electromagnetic shielding chamber through the communication optical fiber.
For example, referring to fig. 4, each communication terminal located inside the electromagnetic shielding room may perform a voice call, transmit audio-video data, text information, picture information, etc. with a communication terminal located outside the electromagnetic shielding room, or each communication terminal located inside the electromagnetic shielding room may also communicate with each other, transmit audio-video data, text information, picture information, etc.
As yet another application scenario, see fig. 5, inside the electromagnetic shielding room, the LIFI module (or called LIFI anchor point) inside the electromagnetic shielding room may be connected to an external network through a communication optical fiber, while the communication terminals, such as the device 1 and the device 2, may be connected to the LIFI anchor point through the self LIFI module, and thus connected to the external network. At this time, the communication terminal inside the electromagnetic shielding room can normally access the external network, and can carry out voice call with equipment such as a mobile phone and the like outside the electromagnetic shielding room, so that a tester can conveniently carry out information inquiry and technical communication.
The electromagnetic shielding chamber comprises a shielding chamber shell and a LIFI module for optical communication; the LIFI module is arranged in the shielding chamber shell and comprises a metal shell, a communication optical fiber, an optical transceiver and a power supply unit for supplying power to the optical transceiver; the optical transceiver is arranged in the metal shell and is connected with one end of the communication optical fiber; the other end of the communication optical fiber passes through the metal shell and extends to the outside of the shielding chamber shell; the power supply unit is arranged in the metal shell and is electrically connected with the optical transceiver; the metal shell is provided with a waveguide window corresponding to the position of the optical transceiver, and the waveguide window is used for transmitting light rays emitted and received by the optical transceiver. In this application, because LIFI module adopts the mode of optical communication, can not produce electromagnetic interference, also can not receive electromagnetic signal's influence, can carry out normal communication under shielding environment to can not interfere the normal work of other instrument and equipment, the practicality is stronger, can guarantee tester's communication demand to and instrument and equipment's test demand, improve user's use experience. In addition, based on LIFI communication, the communication requirement under the shielding scene can be expanded, and in addition, because LIFI communication is wireless communication, compared with a wired communication mode, the convenience and the practicability are higher, and the communication experience of a user is further improved.
As one possible implementation manner, the waveguide window may include a window body obtained by splicing a plurality of cut-off waveguide bundles, the waveguide window further includes a frame, and the window body is disposed inside the frame, where the optical transceiver may include a light emitting diode and a photodiode, and the light emitting diode and the photodiode are respectively disposed inside the corresponding cut-off waveguide bundles. Therefore, the electromagnetic radiation can be cut off on the premise of not obstructing air circulation, and the light emitted by the light emitting diode and the light received by the light sensitive diode are transmitted, so that the sending quality and the receiving quality of the optical signal are ensured.
The optical transceiver comprises an optical receiver and an optical transmitter, wherein the optical transmitter can adopt a light emitting diode, and the optical receiver can adopt a photosensitive diode. It should be noted that, in the present application, the light receiver is only used as a photosensitive diode for example, and in practical application, the light receiver may also be an avalanche diode. The avalanche diode can be an avalanche diode (APD), which has a multiplication effect, and can generate a photocurrent which is tens or hundreds times larger than that of the photodiode under the action of light with the same size, which is equivalent to an optical amplification effect, so that the sensitivity of the optical receiver can be greatly improved by more than 10dB compared with that of the optical receiver adopting the photodiode. Thus, in this embodiment, an APD photodiode may be preferable as an optical receiver to receive an optical signal.
As a possible implementation, since the manufacturing process of the regular hexagonal honeycomb waveguide window is most mature, the interface of the plurality of cut-off waveguide bundles in the waveguide window may be hexagonal, such as regular hexagon.
As a possible implementation manner, in this embodiment of the present application, in order to improve the transmission quality of an optical signal during LIFI communication, the LIFI module 110 may be installed at the top of a room of the electromagnetic shielding chamber 100, for example, the LIFI module 110 may be integrated in a lighting device, where a housing of the lighting device includes a base and a light-transmitting cover that are fastened to each other, one surface of the base is an installation surface for ceiling type installation, the opposite surface is a light-reflecting surface, a photodiode is disposed on the periphery of the light-reflecting surface of the base, a plurality of LED units are disposed in the middle of the light-reflecting surface of the base, a part of the plurality of LED units is a light-emitting diode, and other parts of the plurality of LED units are used for lighting.
In an embodiment of the present application, the lighting device includes a plurality of LED arrays, a portion of the plurality of LED arrays are light emitting diodes, and other portions of the plurality of LED arrays are used for lighting. Therefore, LIFI communication can be realized without additionally arranging an LED lamp, and the internal space and cost of the lighting equipment are saved. In addition, a plurality of photodiodes may be disposed on the periphery of the reflective surface of the base, so that communication between the plurality of photodiodes and communication terminals at different corners in the room can be achieved, and thus, communication between the LIFI module 110 and the communication terminals at different corners in the room of the electromagnetic shielding room 100 can be achieved, so as to obtain data transmitted by the communication terminals at different corners in the room, or data transmitted by the communication terminals outside the electromagnetic shielding room 100 can be forwarded to each communication terminal inside.
As a possible implementation manner, the number of the light emitting diodes may be multiple, so as to increase the emission range of the optical signal, thereby ensuring that the communication terminal inside the electromagnetic shielding chamber 100 can successfully receive the optical signal. Similarly, the number of photodiodes (or avalanche diodes) may be multiple, so as to increase the receiving range of the optical signal, thereby ensuring that the LIFI module 110 inside the electromagnetic shielding chamber housing 100 can successfully receive the optical signal sent by each communication terminal.
As a possible implementation, the light emitting diode and the photodiode may also be arranged at intervals, whereby both the light signal and the light signal may be transmitted and received at the same location.
It should be noted that, in the prior art, the optical transmitter performs data transmission through visible light, however, the transmission distance of the visible light is limited due to the limited transmission distance of the visible light. In response to this problem, in the present application, the light emitter emits visible light or non-visible light, such as infrared light, when emitting the light signal. That is, in the present application, the light emitting diode may include a visible light chip and/or an infrared light chip. Since the wavelength of infrared light is longer than that of visible light and has extremely strong penetrating power, the data transmission distance can be increased by transmitting an optical signal through infrared light.
As a possible implementation, to achieve a further blocking of electromagnetic radiation, the metal housing 111 may also be provided with a waveguide in the present application; wherein the other end of the communication fiber 112 extends to the outside of the shield room housing 120 through the waveguide provided in the metal housing 111. Thus, various non-conductor pipelines such as fire sprinklers, communication optical fibers 112 and the like entering the electromagnetic shielding chamber 100 pass through the waveguide tube, and electromagnetic radiation can be cut off by the waveguide tube, namely, waveguide light responds to shielding treatment on all pipelines entering and exiting the electromagnetic shielding chamber 100, so that electromagnetic radiation entering and exiting is blocked.
As a possible implementation manner, the power supply unit 114 may specifically include a battery and a power supply circuit on the basis of the above-described embodiment; wherein, the battery is connected with the power supply circuit; the power supply circuit is connected to the optical transceiver 113. Thereby, it is possible to realize that the power supply circuit supplies power to the optical transceiver 113 so that the optical transceiver 113 can normally transmit an optical signal as well as receive an optical signal.
In order to implement the above embodiment, the present application also proposes a communication system.
Fig. 6 is a schematic structural diagram of a communication system according to a second embodiment of the present application.
The communication system of the embodiment of the present application is applied to the electromagnetic shielding room 100 proposed in the above embodiment of the present application.
As shown in fig. 6, the communication system may include: a first communication terminal 200 and a second communication terminal 300.
The first communication terminal 200 is located inside the electromagnetic shielding room 100 and is used for communicating with the LIFI module 110 in the electromagnetic shielding room 100, so that the LIFI module 110 transmits first communication data sent by the first communication terminal 200 to the outside of the electromagnetic shielding room 100 through the communication optical fiber 112.
The second communication terminal 300, which is located outside the electromagnetic shielding chamber 100, is connected to the communication optical fiber 112 for acquiring the first communication data.
In this embodiment, the first communication terminal 200 and the second communication terminal 300 are terminal devices with communication functions, for example, the first communication terminal 200 and the second communication terminal 300 may be electronic devices with network interfaces, such as a computer or a notebook, or may be mobile devices, such as a mobile phone, a tablet, a bluetooth headset, a personal digital assistant, and a wearable device.
In this embodiment, when the first communication terminal 200 located inside the electromagnetic shielding room 100 wants to communicate with the second communication terminal 300 located outside the electromagnetic shielding room 100, such as performing a voice call, sending audio/video data, text information, picture information, etc., at this time, the first communication terminal 200 may align its LIFI module with the LIFI module 110 in the electromagnetic shielding room 100, so that the first communication terminal 200 may send first communication data outwards, and the sent first communication data may be transmitted to the second communication terminal outside the electromagnetic shielding room 100 by the LIFI module 110 in the electromagnetic shielding room 100 through the communication optical fiber 112.
As a possible implementation manner, the second communication terminal 300 may also send data to the first communication terminal 200, i.e. the first communication terminal 200 and the second communication terminal 300 may perform information interaction. Specifically, the second communication terminal 300 may send out second communication data through the communication optical fiber 112, and the LIFI module 110 may send the second communication data transmitted by the communication optical fiber 112 to the first communication terminal 200.
Specifically, after the LIFI module 110 receives the second communication data, the light signal carrying the second communication data may be emitted to the outside through the light emitting diode in the optical transceiver 113, and accordingly, the first communication terminal 200 may receive the light signal carrying the second communication data through its LIFI module and analyze the light signal to obtain the corresponding second communication data.
As a possible implementation manner, in order to improve the applicability of the communication system, the number of the first communication terminals 200 may be plural, for example, referring to fig. 4, each first communication terminal located inside the electromagnetic shielding room may perform a voice call with a second communication terminal located outside the electromagnetic shielding room, send audio/video data, text information, picture information, etc., or each first communication terminal located inside the electromagnetic shielding room may also communicate with each other, send audio/video data, text information, picture information, etc.
It should be noted that the foregoing explanation of the embodiment of the electromagnetic shielding chamber is also applicable to the communication system of this embodiment, and will not be repeated here.
According to the communication system, the first communication terminal and the second communication terminal adopt the LIFI communication mode to conduct data interaction, electromagnetic interference cannot be generated due to LIFI communication, the influence of electromagnetic signals cannot be received, normal communication can be conducted under a shielding environment, normal operation of other instrument equipment cannot be interfered, the practicability is high, the communication requirements of testers and the testing requirements of instrument equipment can be guaranteed, and the use experience of users is improved. In addition, based on LIFI communication, the communication requirement under the shielding scene can be expanded, and in addition, because LIFI communication is wireless communication, compared with a wired communication mode, the convenience and the practicability are higher, and the communication experience of a user is further improved.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (9)
1. An electromagnetic shielding chamber is characterized by comprising a shielding chamber shell and a LIFI module for optical communication;
the LIFI module is arranged in the shielding chamber shell and comprises a metal shell, a communication optical fiber, an optical transceiver and a power supply unit for supplying power to the optical transceiver;
the optical transceiver is arranged in the metal shell and is connected with one end of the communication optical fiber; the other end of the communication optical fiber passes through the metal shell and extends to the outside of the shielding chamber shell;
the power supply unit is arranged inside the metal shell and is electrically connected with the optical transceiver;
the metal shell is provided with a waveguide window corresponding to the position of the optical transceiver, and the waveguide window is used for transmitting light rays emitted and received by the optical transceiver;
the waveguide window comprises a window body obtained by splicing a plurality of cut-off waveguide bundles, and also comprises a frame, wherein the window body is arranged in the frame;
the optical transceiver comprises a light emitting diode and a photosensitive diode, wherein the light emitting diode and the photosensitive diode are respectively arranged in the corresponding cut-off waveguide bundle;
and the communication terminal inside the electromagnetic shielding room adopts LIFI communication to communicate with the outside, wherein the communication terminal is provided with a LIFI module, when the communication terminal inside the electromagnetic shielding room communicates with the outside, data are sent outwards through the LIFI module of the communication terminal, and the sent data are transmitted to the outside of the electromagnetic shielding room through the communication optical fiber by the LIFI module inside the electromagnetic shielding room.
2. The electromagnetic shielding chamber of claim 1, wherein the light emitting diode and the photodiode are each plural, and the light emitting diode and the photodiode are arranged at intervals.
3. The electromagnetic shielding chamber of claim 1, wherein the light emitting diode comprises a visible light chip and/or an infrared light chip.
4. The electromagnetic shielding chamber of claim 1, wherein the cut-off waveguide bundle has a hexagonal cross-section.
5. The electromagnetic shielding chamber according to any one of claims 1 to 4, wherein the metal housing is provided with a waveguide;
the other end of the communication optical fiber extends to the outside of the shielding chamber housing through a waveguide tube provided in the metal housing.
6. The electromagnetic shielding chamber of any one of claims 1-4, wherein the power supply unit includes a battery and a power supply circuit;
the battery is connected with the power supply circuit;
the power supply circuit is connected with the optical transceiver.
7. A communication system, applied to an electromagnetic shielding chamber according to any one of claims 1-6, comprising: a first communication terminal and a second communication terminal;
the first communication terminal is positioned in the electromagnetic shielding chamber and is used for communicating with the LIFI module in the electromagnetic shielding chamber, so that the LIFI module can transmit first communication data sent by the first communication terminal to the outside of the electromagnetic shielding chamber through a communication optical fiber;
the second communication terminal is positioned outside the electromagnetic shielding chamber, connected with the communication optical fiber and used for acquiring the first communication data.
8. The communication system of claim 7, wherein the communication system further comprises a plurality of communication devices,
the second communication terminal is further configured to send out second communication data through the communication optical fiber;
the first communication terminal is further configured to obtain, through the LIFI module, the second communication data transmitted by the communication optical fiber.
9. A communication system according to claim 7 or 8, wherein the first communication terminal is a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911113752.8A CN112804025B (en) | 2019-11-14 | 2019-11-14 | Electromagnetic shielding room and communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911113752.8A CN112804025B (en) | 2019-11-14 | 2019-11-14 | Electromagnetic shielding room and communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112804025A CN112804025A (en) | 2021-05-14 |
| CN112804025B true CN112804025B (en) | 2024-02-20 |
Family
ID=75803996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911113752.8A Active CN112804025B (en) | 2019-11-14 | 2019-11-14 | Electromagnetic shielding room and communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112804025B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004194228A (en) * | 2002-12-13 | 2004-07-08 | Mitsubishi Electric Corp | Signal transmission system adaptable to electromagnetic shielding room |
| CN104022825A (en) * | 2014-06-21 | 2014-09-03 | 滁州惠智科技服务有限公司 | Indoor visible light communication system and method thereof |
| WO2018134611A1 (en) * | 2017-01-19 | 2018-07-26 | Purelifi Limited | Shielding apparatus and method |
| CN208367106U (en) * | 2018-04-12 | 2019-01-11 | 石家庄铁路职业技术学院 | A kind of multipurpose assembly type electromagnetic shielding test box |
| CN209231424U (en) * | 2018-09-04 | 2019-08-09 | 智车优行科技（上海）有限公司 | The device of electromagnetic compatibility testing is carried out to the parts to be tested |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60316178T2 (en) * | 2002-10-24 | 2008-06-05 | Nakagawa Laboratories, Inc. | COMMUNICATION DEVICE WITH ILLUMINATING LIGHT |
| US20060045436A1 (en) * | 2004-08-26 | 2006-03-02 | Wang Charlie X | Low electromagnetic interference (EMI) shielded assemblies for electro-optical devices |
| JP4616714B2 (en) * | 2005-07-05 | 2011-01-19 | アバゴ・テクノロジーズ・ジェネラル・アイピー（シンガポール）プライベート・リミテッド | OPTICAL COMMUNICATION SYSTEM, LIGHTING DEVICE USED FOR THE SAME, AND TERMINAL DEVICE |
| CN101026413B (en) * | 2006-02-17 | 2012-01-04 | 华为技术有限公司 | Lighting light wireless communication system |
-
2019
- 2019-11-14 CN CN201911113752.8A patent/CN112804025B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004194228A (en) * | 2002-12-13 | 2004-07-08 | Mitsubishi Electric Corp | Signal transmission system adaptable to electromagnetic shielding room |
| CN104022825A (en) * | 2014-06-21 | 2014-09-03 | 滁州惠智科技服务有限公司 | Indoor visible light communication system and method thereof |
| WO2018134611A1 (en) * | 2017-01-19 | 2018-07-26 | Purelifi Limited | Shielding apparatus and method |
| CN208367106U (en) * | 2018-04-12 | 2019-01-11 | 石家庄铁路职业技术学院 | A kind of multipurpose assembly type electromagnetic shielding test box |
| CN209231424U (en) * | 2018-09-04 | 2019-08-09 | 智车优行科技（上海）有限公司 | The device of electromagnetic compatibility testing is carried out to the parts to be tested |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112804025A (en) | 2021-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017086599A1 (en) | Wireless communication method using near field communication, and electronic device | |
| CN107037665B (en) | Image pickup assembly and electronic device | |
| US9698467B2 (en) | Wired ethernet adaptor for portable electronic devices | |
| CN102089989A (en) | Electronic device with proximity-based radio power control | |
| CN110113110B (en) | Underwater visible light communication device | |
| CN112804025B (en) | Electromagnetic shielding room and communication system | |
| CN211406026U (en) | Monitoring system with ultraviolet laser communication function | |
| US20190190609A1 (en) | Optical Transceiver for Radio Frequency Communication | |
| Louvros et al. | Vlc technology for indoor lte planning | |
| CN210112219U (en) | Multi-channel Bluetooth microphone system based on USB control | |
| WO2020048069A1 (en) | Sar radiation-free mobile terminal body, external communication body and mobile terminal | |
| CN110011035A (en) | Antenna structure and electronic equipment | |
| CN102957478B (en) | Radio frequency control lighting light source based visible light wireless communication system | |
| CN105807288B (en) | A kind of the laser monitoring device and system of audiomonitor | |
| Prince et al. | Optical Wireless Audio Communication Using LED Lighting System | |
| CN216017033U (en) | Mobile phone camera module test carrier with wireless optical communication function | |
| CN209860953U (en) | Mobile terminal and image acquisition module | |
| Fan et al. | Design of wireless optical access system using LED based android mobile | |
| Costanzo et al. | Software defined platforms for visible light communication: State of art and new possibilities | |
| CN217363083U (en) | Portable optical communication network transceiver | |
| CN103297118A (en) | Visible light signal testing method and system | |
| CN218497135U (en) | Electronic device | |
| CN109194404A (en) | A kind of wireless telecommunication system for Electro Magnetic Compatibility test | |
| Mustapha et al. | Visible Light Communication: A Tool For Addressing Radio Frequency Spectrum Congestion | |
| CN212782138U (en) | Take mutual terminal equipment of prison room intelligence of temperature measurement function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |