CN115580374A - Communication device and communication method for electromagnetic shielding room - Google Patents
Communication device and communication method for electromagnetic shielding room Download PDFInfo
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- CN115580374A CN115580374A CN202211575642.5A CN202211575642A CN115580374A CN 115580374 A CN115580374 A CN 115580374A CN 202211575642 A CN202211575642 A CN 202211575642A CN 115580374 A CN115580374 A CN 115580374A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
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Abstract
The invention belongs to the technical field of communication, and aims to provide a communication device and a communication method for an electromagnetic shielding room. The communication device comprises a radioactive source, a main control device, a baffle driving device and a radiation detector; the electromagnetic shielding shell of the electromagnetic shielding chamber is provided with a signal channel, and the radiation end of the radiation source and the detection end of the radiation detector are oppositely arranged; the baffle is positioned in the signal channel and used for conducting or closing the signal channel under the driving of the baffle driving device; the main control device is used for obtaining a binary signal string according to the communication information, controlling the baffle driving device to drive the baffle to act according to the binary signal string, so that the radiation detector receives ray signals emitted by the radioactive source, and obtaining the communication information according to the ray signals. The invention can transmit the outdoor communication information of the electromagnetic shielding chamber to the electromagnetic shielding chamber, can avoid the electromagnetic wave from influencing the experimental result in the electromagnetic shielding chamber, and has simpler structure and stronger structural stability than an optical fiber.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a communication device and a communication method for an electromagnetic shielding room.
Background
The communication equipment comprises wired communication equipment and wireless communication equipment used in industrial control environment, wherein the wireless communication equipment comprises a wireless network card, a wireless network bridge and the like, can realize wireless communication function, can realize the information transmission function of two points under the condition of no physical connection, and is a communication mode for realizing information exchange by utilizing the characteristic that electromagnetic waves propagate in air or vacuum space.
Since wireless communication relies on the transmission of electromagnetic waves, and the electromagnetic waves with the outside are completely blocked and absorbed in the electromagnetic shielding chamber, wireless communication cannot be realized in the electromagnetic shielding chamber. If the electromagnetic shielding room adopts wired communication, the electromagnetic wave is completely isolated so as to avoid the electromagnetic wave from influencing the experimental result in the electromagnetic shielding room, and therefore, the wired communication in the electromagnetic shielding room only adopts an optical fiber circuit to transmit information.
However, in the process of using the prior art, the inventor finds that at least the following problems exist in the prior art:
the mechanical strength of the optical fiber is low, so that the optical fiber is not suitable for wiring in a complex indoor environment, and the technical requirement of optical fiber communication is high.
Disclosure of Invention
The present invention is directed to solve at least some of the above problems, and the present invention provides a communication device and a communication method for an electromagnetic shielding room.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a communication device for an electromagnetic shielding room, including a radiation source, a main control device, a baffle driving device and a radiation detector; the radiation source and the main control device are positioned on the outer side of the electromagnetic shielding chamber, the radiation detector is positioned on the inner side of the electromagnetic shielding chamber, a signal channel is formed in an electromagnetic shielding shell of the electromagnetic shielding chamber, the radiation end of the radiation source and the detection end of the radiation detector are both arranged towards the signal channel, and the radiation end of the radiation source and the detection end of the radiation detector are oppositely arranged; the baffle is positioned in the signal channel and used for conducting or closing the signal channel under the driving of the baffle driving device; the main control device is used for obtaining a binary signal string according to communication information, and controlling the baffle driving device to drive the baffle to act according to the binary signal string, so that the radiation detector receives a ray signal emitted by the radioactive source and obtains the communication information according to the ray signal.
This embodiment can realize transmitting the indoor purpose of electromagnetic shield outdoor communication information to the electromagnetic shield, can avoid the electromagnetic wave to produce the influence to the experimental result in the shielding room, and the structure is simpler simultaneously, and structural stability is stronger than optic fibre. In the implementation process of the embodiment, a corresponding binary signal can be obtained according to communication information, and the main control device can control the baffle driving device to drive the baffle to act according to the binary signal string, so that the detection rule of the radiation detector for emitting ray particles by the radiation source is changed; specifically, master control set basis binary signal string control baffle drive arrangement drive during the baffle action, the baffle can be in certain period of time, according to the difference of binary signal in the binary signal string, regular switching on or closed signal channel, radiation detector also can embody regular signal detection result when carrying out ray signal detection, through continuous recording, can obtain corresponding binary signal string to decode it, obtain original communication information, realize the transmission to communication information in proper order, reach the indoor purpose of electromagnetic shield outdoor communication information transmission to electromagnetic shield, the convenience is high, and the practicality is stronger simultaneously.
In a possible design, the communication device further includes a radiation collimator, an input end of the radiation collimator is connected to the radiation end of the radiation source, and an output end of the radiation collimator is connected to the signal channel.
In one possible design, the radioactive source includes a radioactive source body and a radioactive source shielding cover, the radioactive source shielding cover wraps the outer surface of the radioactive source body, a radiation hole is formed in the radioactive source shielding cover, the radioactive source body is exposed in the radiation hole, and the radiation hole of the radioactive source shielding cover forms a radiation end of the radioactive source.
In one possible design, the radiation source body employs 241 Am a radioactive source.
In one possible design, the baffle is a lead-aluminum alloy baffle, and the rotating shaft of the baffle is connected with the output end of the baffle driving device.
In one possible design, the inner wall of the signal channel is provided with a limiting block for limiting the baffle; the limiting blocks comprise vertical limiting blocks and horizontal limiting blocks, the vertical limiting blocks are provided with two limiting blocks, the two vertical limiting blocks comprise first vertical limiting blocks located on the upper portion of the signal channel and second vertical limiting blocks located on the lower portion of the signal channel, and the horizontal limiting blocks are located in the middle of the signal channel.
In one possible design, the radiation detector employs a scintillation detector.
In one possible design, the master control device comprises a master control module, a vibration module and a reset module, wherein the vibration module and the reset module are electrically connected with the master control module, the master control module is further electrically connected with a controlled end of the baffle driving device, and the master control module is used for obtaining a binary signal string according to communication information and controlling the baffle driving device to drive the baffle to act according to the binary signal string.
In a second aspect, the invention provides a communication method for an electromagnetic shielding room, which is implemented based on a communication device for the electromagnetic shielding room, wherein the communication device comprises a radioactive source, a main control device, a baffle driving device and a radiation detector; the radiation source and the main control device are positioned on the outer side of the electromagnetic shielding chamber, the radiation detector is positioned on the inner side of the electromagnetic shielding chamber, a signal channel is formed in an electromagnetic shielding shell of the electromagnetic shielding chamber, the radiation end of the radiation source and the detection end of the radiation detector are both arranged towards the signal channel, and the radiation end of the radiation source and the detection end of the radiation detector are oppositely arranged; the baffle is positioned in the signal channel and used for conducting or closing the signal channel under the driving of the baffle driving device;
the communication method comprises the following steps:
the master control device obtains a binary signal string according to the communication information;
the master control device controls the baffle driving device to drive the baffle to act according to the binary signal string; the master control device controls the baffle driving device to drive the baffle to conduct or close the signal channel when controlling the baffle driving device to run according to any binary signal;
and the radiation detector receives the ray signal emitted by the radioactive source and obtains communication information according to the ray signal.
In one possible design, the master device obtains the binary signal string according to the communication information, and includes:
the master control device receives communication information and encodes the communication information to obtain a binary signal string;
or, the main control device receives a plurality of continuous binary signals output by the user according to the communication information, and obtains a binary signal string according to the plurality of continuous binary signals.
Drawings
Fig. 1 is a schematic structural view of a communication device for an electromagnetic shielding room in embodiment 1 mounted on an electromagnetic shielding case;
fig. 2 is a schematic structural view of a baffle of the communication device for the electromagnetic shielding room in the signal channel in embodiment 1;
FIG. 3 is a schematic structural view of a radiation detector in embodiment 1;
fig. 4 is a schematic structural diagram of the master control device in embodiment 1.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the embodiments or the description in the prior art, it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
Example 1:
the embodiment discloses a communication device for an electromagnetic shielding room, as shown in fig. 1, comprising a radioactive source 1, a main control device 7, a baffle 5, a baffle driving device 6 and a radiation detector 11; the radiation source 1 and the main control device 7 are located on the outer side of the electromagnetic shielding chamber, the radiation detector 11 is located on the inner side of the electromagnetic shielding chamber, a signal channel 4 is formed in an electromagnetic shielding shell of the electromagnetic shielding chamber, the radiation end of the radiation source 1 and the detection end of the radiation detector 11 are both arranged towards the signal channel 4, and the radiation end of the radiation source 1 and the detection end of the radiation detector 11 are oppositely arranged; the baffle 5 is positioned in the signal channel 4, and the baffle 5 is used for conducting or closing the signal channel 4 under the driving of the baffle driving device 6; the main control device 7 is configured to obtain a binary signal string according to communication information, and control the baffle driving device 6 to drive the baffle 5 to move according to the binary signal string, so that the radiation detector 11 receives a ray signal emitted by the radiation source 1, and obtain communication information according to the ray signal.
Specifically, in this embodiment, when the baffle 5 conducts the signal channel 4, the radiation particles emitted by the radiation source 1 can be emitted to the detection end of the radiation detector 11 through the signal channel 4, and at this time, the radiation detector 11 can detect the radiation particles; when the baffle 5 closes the signal channel 4, the ray particles emitted by the radiation source 1 are blocked by the baffle 5 and cannot be emitted to the detection end of the radiation detector 11 through the signal channel 4, and at this time, the radiation detector 11 cannot detect the ray particles. For example, as shown in fig. 2, when the signal channel 4 is horizontally disposed and the baffle 5 can rotate in the horizontal direction under the driving of the baffle driving device 6, when the baffle driving device 6 drives the baffle 5 to be horizontally disposed, the signal channel 4 is conducted, and when the baffle driving device 6 drives the baffle 5 to be vertically disposed, the signal channel 4 is closed.
Specifically, in this embodiment, the main control device 7 may control the baffle driving device 6 to continuously drive the baffle 5 to conduct or close the signal channel 4 according to the binary signal string, where the binary signal string includes binary signals of 0 and 1 bits, and the main control device 7 may send different control signals to the baffle driving device 6 according to different binary signals, so that the baffle driving device 6 drives the baffle 5 to rotate forward or backward. For example, when the binary signal string is "0101", the main control device 7 may control the barrier driving device 6 to drive the barrier 5 to sequentially close, conduct, close, and communicate the signal channel 4, or may control the barrier driving device 6 to drive the barrier 5 to sequentially conduct, close, conduct, and close the signal channel 4, which is not limited herein.
In this embodiment, the diameter of the signal channel 4 is set to about 1cm, the signal channel 4 is in a vacuum state, and the radioactive source 1, the signal channel 4 and the radiation detector 11 are hermetically arranged, so as to prevent radioactive particles emitted by the radioactive source 1 from leaking and interfering with the indoor environment of the electromagnetic shielding.
This embodiment can realize transmitting the indoor purpose of electromagnetic shield outdoor communication information to the electromagnetic shield, can avoid the electromagnetic wave to exert an influence to the experimental result in the shielding chamber, and the structure is simpler simultaneously, and structural stability is stronger than optic fibre. In the implementation process of the embodiment, a corresponding binary signal can be obtained according to communication information, and the main control device 7 can control the baffle driving device 6 to drive the baffle 5 to act according to the binary signal string, so as to change the detection rule of the radiation detector 11 for emitting ray particles to the radiation source 1; specifically, master control unit 7 basis binary signal string control baffle drive arrangement 6 drive during the action of baffle 5, baffle 5 can be in certain period of time, according to the difference of binary signal in the binary signal string, regular switching on or closed signal channel 4, radiation detector 11 also can embody for regular signal detection result when carrying out ray signal detection, through continuous recording, can obtain corresponding binary signal string to decode it, obtain original communication information, realize the transmission to communication information in proper order, reach the indoor purpose of electromagnetic shield outdoor communication information transmission to electromagnetic shield, the convenience is high, and the practicality is stronger simultaneously.
In this embodiment, the communication device further includes a radiation collimator 3, an input end of the radiation collimator 3 is connected to the radiation end of the radiation source 1, and an output end of the radiation collimator 3 is connected to the signal channel 4. It should be noted that the radiation collimator 3 is configured to limit an output range of radiation, and control radiation particles in a direction consistent with a communication direction of the signal channel 4, so that when the signal channel 4 is turned on, a detection end of the radiation detector 11 can detect the radiation emitted by a radiation end of the radiation source 1 in time, and data transmission efficiency is improved.
In this embodiment, the radioactive source 1 includes a radioactive source 1 body and a radioactive source shielding case 2, the radioactive source shielding case 2 wraps the outer surface of the radioactive source 1 body, a radiation hole is formed in the radioactive source shielding case 2, the radioactive source 1 body is exposed in the radiation hole, that is, the radiation hole allows the radioactive source 1 body to emit rays to the outside of the radioactive source shielding case 2, and the radiation hole of the radioactive source shielding case 2 constitutes a radiation end of the radioactive source 1. In this embodiment, the radioactive source shielding case 2 is made of lead, which may be made of tungsten alloy shielding material, boron-containing polyethylene material, or the like. According to the attribute of the material structure of lead, lead can not be destroyed the atomic structure under long-time radiation, and the stability of shielding radiation source 1 is strong, can effectively prevent radioactive particles from revealing, and the security is strong.
In this embodiment, the radioactive source 1 is a body 241 Am a radioactive source. It should be noted that, in the following description, 241 am radioactive source 1 is often used as an ion-sensitive smoke detector, and has stable energyThe device has the characteristics of small radiation, long decay time and the like, and can realize long-time ray emission to achieve the aim of stable signal transmission.
In addition, in order to ensure the accuracy of signal transmission, the baffle 5 in this embodiment is made of a material capable of shielding the radiation emitted by the radiation source 1, specifically, in this embodiment, the baffle 5 is made of a lead-aluminum alloy baffle, and the rotation axis of the baffle 5 is connected to the output end of the baffle driving device 6.
In this embodiment, the inner wall of the signal channel 4 is provided with a limiting block for limiting the baffle 5; the stopper includes vertical stopper and horizontal stopper 10, vertical stopper is provided with two, and two vertical stoppers are including being located the first vertical stopper 8 on the upper portion of signal channel 4 and being located the vertical stopper 9 of second of the lower part of signal channel 4, horizontal stopper 10 is located the middle part of signal channel 4.
In this embodiment, as shown in fig. 3, the radiation detector 11 is a scintillation detector. Specifically, in this embodiment, the radiation detector 11 includes a reflective layer, a scintillator, an optical coupler and a photoelectric converter, the reflective layer is disposed on an outer surface of the scintillator, a signal receiving end of the optical coupler is disposed close to the scintillator, a signal emitting end of the optical coupler is connected to the photoelectric converter, and an output end of the photoelectric converter is connected to a preamplifier.
In this embodiment, as shown in fig. 4, the main control device 7 includes a main control module, an oscillation module and a reset module, the oscillation module and the reset module are both electrically connected to the main control module, the main control module is further electrically connected to the controlled end of the baffle driving device 6, and the main control module is configured to obtain a binary signal string according to communication information and control the baffle driving device 6 to drive the baffle 5 to move according to the binary signal string. In this embodiment, the main control device 7 is provided with a plug J1 in cooperation with the baffle driving device 6, and the baffle driving device 6 may be implemented by a motor, but not limited to.
In this embodiment, the main control device 7 employs an AT89C52 type single chip microcomputer U1 and peripheral circuits thereof, specifically, the AT89C52 type single chip microcomputer is a low-power consumption and high-performance CMOS 8-bit central processing unit, and includes a Flash read-only program memory of 8k bytes and a random access data memory RAM of 256 bytes, and the type single chip microcomputer U1 is produced by a high-density and non-volatile storage technology of ATMEL corporation, is compatible with a standard MCS-51 instruction system, and has a stronger practicability.
In this embodiment, the pins 10 and 11 of the single chip microcomputer U1 are respectively connected to the baffle driving device 6, so as to control the baffle driving device 6.
In this embodiment, the oscillation module includes a first capacitor C1, a second capacitor C2 and a crystal oscillator X1, one end of the first capacitor C1 is connected to the pin 19 of the single chip microcomputer U1, and the other end is grounded, one end of the second capacitor C2 is connected to the pin 18 of the single chip microcomputer U1, and the other end is grounded, and two ends of the crystal oscillator X1 are respectively connected to the pin 19 of the single chip microcomputer U1 and the pin 18 of the single chip microcomputer U1; in the operation process, the first capacitor C1 and the second capacitor C2 can complete charging and discharging within a certain time, and in the charging and discharging process, the crystal oscillator X1 can output a more accurate and stable frequency signal as a clock source of the singlechip U1; the first capacitor C1 and the second capacitor C2 are grounded, so that the interference of external stray capacitors to the crystal oscillator can be reduced conveniently, and the working stability of the crystal oscillator X1 is enhanced.
In this embodiment, the module that resets includes first resistance R9 that one end is connected with singlechip U1's 9 feet and the third electric capacity C3 that one end is connected with singlechip U1's 9 feet, and the other end of first resistance R9 and the other end of third electric capacity C3 all ground connection. In this embodiment, the reset module can realize the reset of singlechip U1.
In this embodiment, the main control device 7 may be configured to directly receive communication information, and encode the communication information to obtain a binary signal string; at the moment, the main control device 7 can be in communication connection with the output end of the communication information, encodes the received communication information to obtain a binary signal string, and controls the baffle driving device 6 to drive the baffle 5 to act according to the binary signal string; of course, the main control device 7 may also receive a plurality of continuous binary signals output by the user according to the communication information, obtain a binary signal string according to the plurality of continuous binary signals, and then control the baffle driving device 6 to drive the baffle 5 to act according to the binary signal string, at this time, a key module convenient for the user to send the binary signals may be disposed in the main control device 7 in cooperation with the single chip microcomputer U1, and specifically, the key module includes a first key S1 for controlling the baffle driving device 6 to rotate forward, a second key S2 for controlling the baffle driving device 6 to rotate backward, and a third key S3 for controlling the baffle driving device 6 to stop.
Example 2:
the embodiment discloses a communication method for an electromagnetic shielding room, which can be implemented based on, but not limited to, the communication device for an electromagnetic shielding room in embodiment 1, wherein the communication device includes a radiation source 1, a main control device 7, a baffle 5, a baffle driving device 6 and a radiation detector 11; the radiation source 1 and the main control device 7 are positioned on the outer side of the electromagnetic shielding chamber, the radiation detector 11 is positioned on the inner side of the electromagnetic shielding chamber, a signal channel 4 is formed in an electromagnetic shielding shell of the electromagnetic shielding chamber, the radiation end of the radiation source 1 and the detection end of the radiation detector 11 are both arranged towards the signal channel 4, and the radiation end of the radiation source 1 and the detection end of the radiation detector 11 are oppositely arranged; the baffle 5 is positioned in the signal channel 4, and the baffle 5 is used for conducting or closing the signal channel 4 under the driving of the baffle driving device 6;
the communication method comprises the following steps:
the main control device 7 obtains a binary signal string according to the communication information;
the main control device 7 controls the baffle driving device 6 to drive the baffle 5 to act according to the binary signal string; the binary signal string comprises a plurality of binary signals, and when the master control device 7 controls the baffle driving device 6 to operate according to any binary signal, the baffle driving device 6 controls and drives the baffle 5 to conduct or close the signal channel 4;
the radiation detector 11 receives the ray signal emitted by the radiation source 1 and obtains communication information according to the ray signal.
In this embodiment, the obtaining, by the master control device 7, the binary signal string according to the communication information includes:
the main control device 7 receives communication information and codes the communication information to obtain a binary signal string;
or, the main control device 7 receives a plurality of continuous binary signals output by the user according to the communication information, and obtains the binary signal string according to the plurality of continuous binary signals.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some technical features may still be made. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A communication device for an electromagnetically shielded room, comprising: comprises a radioactive source (1), a main control device (7), a baffle (5), a baffle driving device (6) and a radiation detector (11); the radiation source (1) and the main control device (7) are located on the outer side of the electromagnetic shielding chamber, the radiation detector (11) is located on the inner side of the electromagnetic shielding chamber, a signal channel (4) is formed in an electromagnetic shielding shell of the electromagnetic shielding chamber, the radiation end of the radiation source (1) and the detection end of the radiation detector (11) are both arranged towards the signal channel (4), and the radiation end of the radiation source (1) and the detection end of the radiation detector (11) are oppositely arranged; the baffle (5) is positioned in the signal channel (4), and the baffle (5) is used for conducting or closing the signal channel (4) under the driving of the baffle driving device (6); the main control device (7) is used for obtaining a binary signal string according to communication information, and controlling the baffle driving device (6) to drive the baffle (5) to act according to the binary signal string, so that the radiation detector (11) receives a ray signal emitted by the radiation source (1), and communication information is obtained according to the ray signal.
2. A communication device for an electromagnetically shielded room as claimed in claim 1, wherein: the communication device further comprises a ray collimator (3), the input end of the ray collimator (3) is connected with the radiation end of the radiation source (1), and the output end of the ray collimator (3) is connected with the signal channel (4).
3. A communication device for an electromagnetically shielded room as claimed in claim 1, wherein: the radioactive source (1) comprises a radioactive source (1) body and a radioactive source shielding cover (2), wherein the radioactive source shielding cover (2) wraps the outer surface of the radioactive source (1) body, a radiation hole is formed in the radioactive source shielding cover (2), the radioactive source (1) body is exposed in the radiation hole, and the radiation hole of the radioactive source shielding cover (2) forms a radiation end of the radioactive source (1).
4. A communication device for an electromagnetically shielded room as claimed in claim 3, wherein: the body of the radioactive source (1) adopts 241 Am radioactive source.
5. A communication device for an electromagnetically shielded room as claimed in claim 1, wherein: the baffle (5) is a lead-aluminum alloy baffle, and a rotating shaft of the baffle (5) is connected with an output end of the baffle driving device (6).
6. A communication device for an electromagnetically shielded room as claimed in claim 1, wherein: the inner wall of the signal channel (4) is provided with a limiting block for limiting the baffle (5); the limiting blocks comprise vertical limiting blocks and horizontal limiting blocks (10), the vertical limiting blocks are two in number, the two vertical limiting blocks comprise first vertical limiting blocks (8) located on the upper portion of the signal channel (4) and second vertical limiting blocks (9) located on the lower portion of the signal channel (4), and the horizontal limiting blocks (10) are located in the middle of the signal channel (4).
7. A communication device for an electromagnetically shielded room as claimed in claim 1, wherein: the radiation detector (11) adopts a scintillation detector.
8. A communication device for an electromagnetically shielded room as claimed in claim 1, wherein: the main control device (7) comprises a main control module, a vibration module and a reset module, wherein the vibration module and the reset module are electrically connected with the main control module, the main control module is also electrically connected with a controlled end of the baffle driving device (6), and the main control module is used for obtaining a binary signal string according to communication information and controlling the baffle driving device (6) to drive the baffle (5) to act according to the binary signal string.
9. A communication method for an electromagnetic shielding room, comprising: the electromagnetic shielding room communication device is realized based on a communication device for an electromagnetic shielding room, and the communication device comprises a radioactive source (1), a main control device (7), a baffle (5), a baffle driving device (6) and a radiation detector (11); the radiation source (1) and the main control device (7) are located on the outer side of the electromagnetic shielding chamber, the radiation detector (11) is located on the inner side of the electromagnetic shielding chamber, a signal channel (4) is formed in an electromagnetic shielding shell of the electromagnetic shielding chamber, the radiation end of the radiation source (1) and the detection end of the radiation detector (11) are both arranged towards the signal channel (4), and the radiation end of the radiation source (1) and the detection end of the radiation detector (11) are oppositely arranged; the baffle (5) is positioned in the signal channel (4), and the baffle (5) is used for conducting or closing the signal channel (4) under the driving of the baffle driving device (6);
the communication method comprises the following steps:
the main control device (7) obtains a binary signal string according to the communication information;
the main control device (7) controls the baffle driving device (6) to drive the baffle (5) to act according to the binary signal string; the binary signal string comprises a plurality of binary signals, and when the master control device (7) controls the baffle driving device (6) to operate according to any binary signal, the baffle driving device (6) controls and drives the baffle (5) to conduct or close the signal channel (4);
the radiation detector (11) receives the ray signals emitted by the radiation source (1) and obtains communication information according to the ray signals.
10. A communication method for an electromagnetically shielded room as claimed in claim 9, wherein: the main control device (7) obtains a binary signal string according to the communication information, and comprises:
the master control device (7) receives communication information and encodes the communication information to obtain a binary signal string;
or, the main control device (7) receives a plurality of continuous binary signals output by the user according to the communication information, and obtains a binary signal string according to the plurality of continuous binary signals.
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