CN112636828B - Full-duplex deep ultraviolet communication device and control method thereof - Google Patents
Full-duplex deep ultraviolet communication device and control method thereof Download PDFInfo
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Abstract
The invention relates to a full-duplex deep ultraviolet communication device and a control method thereof. The full-duplex deep ultraviolet communication device comprises an emitting module, a receiving module and a control module; the transmitting module comprises an acquisition unit, a first exchange integrated unit, a driving unit, an acceleration switch circuit, a transistor driving unit and a deep ultraviolet LED array; the acquisition unit is used for receiving information to be sent; the first switching integration unit is used for summarizing and converting parallel input data of the multiple ports RJ45 into a parallel output data form of the single port RJ 45; the control module is used for forming a modulation signal; the receiving module comprises a photoelectric detector, an operational amplifier filter circuit, an analog-to-digital conversion unit, a second exchange integrated unit and a user interaction unit; the control module is used for forming a demodulation signal; the second switching integrated unit is used for converting demodulation signals in the form of single-port RJ45 parallel input data into a form of multi-port RJ45 parallel output data. The invention realizes high-security data transmission and can effectively improve the transmission quality of signals.
Description
Technical Field
The invention relates to the technical field of optical communication, in particular to a full-duplex deep ultraviolet communication device and a control method thereof.
Background
The ultraviolet light communication is a light communication technology based on the scattering and absorption of atmospheric molecules and sub-sol particles. The existence of the solar blind area provides a good communication background for the ultraviolet communication device working in the wave band. Because ultraviolet light communication is a wireless optical communication technology based on atmospheric scattering and absorption, the scattering action of ultraviolet light in the atmosphere changes the energy transmission direction of the ultraviolet light, but the attenuation caused by the absorption action limits the transmission of the ultraviolet light within a certain distance. Secondly, in optical communication, due to various noises and other unpredictable factors in the external environment, information errors are easily caused in the process of optical transmission. One type of errors are sudden errors caused by optical interference of different wave bands in an external environment, namely error bits continuously appear, which easily influences the stability and communication quality of a communication link; another type of error is direct distance obstruction or reflection interference caused by physical factors such as sand particles and the like, and the error rate of optical communication transmission can be improved to a certain extent, so that the application field of the optical communication technology is limited.
Therefore, how to improve the problems of poor transmission quality and low security of multimedia information in the optical communication process to improve the optical transmission efficiency of multimedia information is a technical problem to be solved at present.
Disclosure of Invention
The invention provides a full-duplex deep ultraviolet communication device and a control method thereof, which are used for solving the problems of poor quality and low confidentiality in the aspect of information transmission in the conventional optical communication transmission method.
In order to solve the above problems, the present invention provides a full-duplex deep ultraviolet communication device, which comprises an emitting module, a receiving module and a control module; wherein:
the transmitting module comprises an acquisition unit, a first exchange integrated unit, a driving unit, an acceleration switch circuit, a transistor driving unit and a deep ultraviolet LED array; the acquisition unit is used for receiving information to be sent; the first switching integration unit is used for summarizing the information to be sent in a multi-port RJ45 parallel input data form from the acquisition unit, converting the information into a single-port RJ45 parallel output data form and transmitting the information to the control module; the control module is used for carrying out channel coding and binary frequency shift keying modulation on the information to be sent in a single-port RJ45 parallel output data form, forming a modulation signal and transmitting the modulation signal to the acceleration switch circuit; the driving unit is used for providing a power supply driving signal for the deep ultraviolet LED array, the output end of the driving unit is connected with the acceleration switch circuit, and the acceleration switch circuit loads the modulation signal to the power supply driving signal; the input end of the transistor driving unit is connected with the acceleration switch circuit, and the output end of the transistor driving unit is connected with the deep ultraviolet LED array and is used for driving the deep ultraviolet LED array to emit a first deep ultraviolet modulation optical signal;
the receiving module comprises a photoelectric detector, an operational amplifier filter circuit, an analog-to-digital conversion unit, a second exchange integrated unit and a user interaction unit; the photoelectric detector is used for receiving a second deep ultraviolet modulation optical signal from the outside and converting the second deep ultraviolet modulation optical signal into an electric signal; the operational amplifier filter circuit is used for amplifying the electric signal through two-stage negative feedback; the analog-to-digital conversion unit is used for judging the amplified electric signal and outputting a regular digital waveform signal; the control module is used for demodulating the regular digital waveform signal to form a demodulation signal; the second switching integrated unit is used for converting the demodulation signals in a single-port RJ45 parallel input data form from the control module into a multi-port RJ45 parallel output data form to obtain information to be received; and the user interaction unit is used for outputting the information to be received.
Optionally, the control module is configured to perform IP bit synchronization confirmation on the information to be sent in the form of single-port RJ45 parallel output data, form a modulation signal after binary frequency shift keying modulation processing and RS channel coding processing, press the modulation signal into a sending buffer of the FIFO memory, and finally output the modulation signal to the acceleration switch circuit at a predetermined clock cycle by using a phase-locked loop.
Optionally, the control module is further configured to detect an output bit, a synchronization flag bit, and bit stream data of the regular digital waveform signal, and determine whether a complete byte is received according to the detected output bit, synchronization flag bit, and bit stream data, and if yes, store the regular digital waveform signal in a to-be-decoded data area of the FIFO memory;
an RS decoding top layer in the control module reads data from the data area to be decoded of the FIFO memory and performs decoding processing, and checks whether error codes occur in the data stored in the data area to be decoded while decoding so as to determine whether the format of a transparent transmission data packet is met;
after the control module confirms that the data stored in the data area to be decoded meets the format of a transparent transmission data packet, the control module directly writes the decoded demodulation signal into a receiving buffer area of the FIFO memory, and a top-layer transceiving unit in the control module transmits the demodulation signal to the second switching integrated unit through Ethernet.
Optionally, the user interaction unit includes a touch display screen;
the touch display screen is also used for receiving an instruction sent by a user, and the control module executes corresponding operation according to the instruction.
Optionally, the instruction includes adjusting a working state of the full-duplex deep ultraviolet light communication device and remote control of the acquisition unit, where the working state includes one or more of a shutdown state, a signal transmitting state, a signal receiving state, and a signal transmitting and receiving full-duplex state.
Optionally, the transmitting module further includes:
and the heat dissipation unit is arranged at the periphery of the deep ultraviolet LED array and is used for carrying out heat dissipation treatment on the deep ultraviolet LED array.
Optionally, the receiving module further includes:
and the filter is arranged at the receiving end of the photoelectric detector and used for filtering background light mixed in the second deep ultraviolet modulation optical signal.
In order to solve the above problem, the present invention further provides a method for controlling a full-duplex deep ultraviolet light communication apparatus, including the following steps:
receiving information to be transmitted;
summarizing the information to be sent in a multi-port RJ45 parallel input data form and converting the information into a single-port RJ45 parallel output data form;
carrying out channel coding and binary frequency shift keying modulation on the information to be transmitted in a single-port RJ45 parallel output data form to form a modulation signal;
after the modulation signal is loaded to a power supply driving signal of the deep ultraviolet LED array, driving the deep ultraviolet LED array to emit a first deep ultraviolet modulation light signal;
receiving a second deep ultraviolet modulation optical signal from the outside and converting the second deep ultraviolet modulation optical signal into an electric signal;
amplifying the electric signal through two-stage negative feedback;
judging the amplified electric signal to form a regular digital waveform signal;
demodulating the regular digital waveform signal to form a demodulated signal;
converting the demodulation signals in a single-port RJ45 parallel input data form into a multi-port RJ45 parallel output data form to obtain information to be received;
and outputting the information to be received.
Optionally, the specific step of forming the modulation signal includes:
carrying out IP bit synchronization confirmation on the information to be sent in a single-port RJ45 parallel output data form;
forming a modulation signal after binary frequency shift keying modulation processing and RS channel coding processing;
pressing the modulation signal into a sending buffer area of an FIFO memory;
and outputting the modulation signal according to the specified clock period by a phase-locked loop.
Optionally, the specific step of forming the demodulated signal includes:
detecting an output bit, a synchronous flag bit and bit stream data of the regular digital waveform signal, judging whether a complete byte is received according to the detected output bit, the synchronous flag bit and the bit stream data, and if so, storing the regular digital waveform signal to a data area to be decoded of an FIFO memory;
reading data from the data area to be decoded of the FIFO memory and performing decoding processing, and checking whether error codes occur to the data stored in the data area to be decoded while decoding so as to determine whether the format of a transparent transmission data packet is met;
and after confirming that the data stored in the data area to be decoded meets the format of a transparent transmission data packet, directly writing the decoded demodulation signal into a receiving buffer area of the FIFO memory, and transmitting the demodulation signal through Ethernet.
According to the full-duplex deep ultraviolet communication device and the control method thereof, the deep ultraviolet light is used as a carrier for signal transmission, high-confidentiality data transmission is achieved, the anti-interference capability of the deep ultraviolet light is high, and therefore the transmission quality of signals can be effectively improved. Meanwhile, the full-duplex deep ultraviolet communication device can be used for non-line-of-sight communication and has the characteristics of high signal-to-noise ratio, no need of tracking and aiming and the like, thereby being beneficial to expanding the application field of the deep ultraviolet communication technology.
Drawings
Fig. 1 is a schematic structural diagram of a full-duplex deep ultraviolet communication device in an embodiment of the present invention;
fig. 2 is a schematic diagram of a control module processing information to be sent in the embodiment of the present invention;
FIG. 3 is a schematic diagram of a control module in processing information to be received in accordance with an embodiment of the present invention;
fig. 4 is a schematic flow chart of a method of a full-duplex deep ultraviolet communication device for transmitting signals according to an embodiment of the present invention;
fig. 5 is a flow chart of a method of receiving signals by a full-duplex deep ultraviolet communication device according to an embodiment of the present invention.
Detailed Description
The following describes in detail a specific embodiment of the full-duplex deep ultraviolet communication apparatus and the control method thereof according to the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a full-duplex deep ultraviolet communication device according to an embodiment of the present invention. As shown in fig. 1, the full-duplex deep ultraviolet communication apparatus provided in this embodiment includes a transmitting module, a receiving module, and a control module 12; wherein:
the transmitting module comprises an acquisition unit 10, a first exchange integrated unit 11, a driving unit 13, an acceleration switch circuit 14, a transistor driving unit 15 and a deep ultraviolet LED array 16; the acquisition unit 10 is configured to receive information to be sent; the first switching integration unit 11 is configured to summarize the to-be-sent information in the form of multi-port RJ45 parallel input data from the acquisition unit 10, convert the to-be-sent information into a form of single-port RJ45 parallel output data, and transmit the to-be-sent information to the control module 12; the control module 12 is configured to perform channel coding and binary frequency shift keying modulation on the information to be sent in the form of single-port RJ45 parallel output data, form a modulation signal, and transmit the modulation signal to the acceleration switch circuit 14; the driving unit 13 is configured to provide a power driving signal to the deep ultraviolet LED array 16, and an output end of the driving unit 13 is connected to the acceleration switch circuit 14, and the acceleration switch circuit 14 loads the modulation signal to the power driving signal; the input end of the transistor driving unit 15 is connected to the acceleration switch circuit 14, and the output end of the transistor driving unit is connected to the deep ultraviolet LED array 16, and is configured to drive the deep ultraviolet LED array 16 to emit a first deep ultraviolet modulated light signal;
the receiving module comprises a photoelectric detector 19, an operational amplifier filter circuit 20, an analog-to-digital conversion unit 21, a second exchange integrated unit 22 and a user interaction unit 23; the photoelectric detector 19 is configured to receive a second deep ultraviolet modulated light signal from the outside, and convert the second deep ultraviolet modulated light signal into an electrical signal; the operational amplifier filter circuit 20 is configured to amplify the electrical signal through two-stage negative feedback; the analog-to-digital conversion unit 21 is configured to perform decision processing on the amplified electrical signal and output a regular digital waveform signal; the control module 12 is configured to demodulate the regular digital waveform signal to form a demodulated signal; the second switching integrated unit 22 is configured to convert the demodulated signals in the form of single-port RJ45 parallel input data from the control module into a form of multi-port RJ45 parallel output data, so as to obtain information to be received; the user interaction unit 23 is configured to output the information to be received.
Specifically, when information to be sent is transmitted to the outside through the full-duplex deep ultraviolet communication device: first, the information to be sent is collected by the collecting unit 10, and is transmitted to the first switching integration unit 11. The information to be sent may be multimedia information such as audio information or video information, or may be sensing information acquired by an additional sensor. The information to be sent received by the acquisition unit 10 is information in a form of multi-port RJ45 parallel input data. Then, the first switching integrated unit 11 summarizes and converts the information to be sent in the form of multi-port RJ45 parallel input data from the acquisition unit 10 into a form of single-port RJ45 parallel output data, and transmits the data to the control module 12. The control module 12 may include an FPGA (Field Programmable Gate Array). The FPGA performs channel coding and binary frequency shift keying modulation on the information to be sent in the form of single-port RJ45 parallel output data, forms a modulation signal, and transmits the modulation signal to the acceleration switch circuit 14. Meanwhile, the driving unit 13 outputs a power driving signal to the acceleration switching circuit 14. The acceleration switch circuit 14 loads the modulation signal into the power driving signal after receiving the modulation signal, and transmits the power driving signal loaded with the modulation signal to the transistor driving unit 15. The transistor driving unit 15 drives the deep ultraviolet LED array 16 to emit a first deep ultraviolet modulated light signal according to the received power driving signal loaded with the modulation signal. The first deep ultraviolet modulated light signal is a bright and dark light signal carrying the information to be sent.
The driving unit 13 may be a constant current driving unit or a constant voltage driving unit, and those skilled in the art can select the driving unit according to actual needs, so long as it is ensured that the power driving signal is output in a constant current state when the deep ultraviolet LED array 16 is driven. The Transistor driving unit 15 may include a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET).
When receiving information to be received from the outside through the full-duplex deep ultraviolet communication device: first, the second deep ultraviolet modulated light signal carrying the information to be received is received by the photodetector 19, and the second deep ultraviolet modulated light signal is subjected to photoelectric conversion to generate an electrical signal. The information to be transmitted may be multimedia information such as audio information or video information, and may also be sensing information. The photodetector 19 may be an avalanche diode photodetector. Then, the operational amplifier filter circuit 20 amplifies the weak electrical signal to a suitable amplitude through two-stage negative feedback (the specific amplitude can be adjusted according to actual needs by those skilled in the art), and the analog-to-digital conversion unit 21 performs decision processing on the amplified electrical signal to output a regular digital waveform signal. The op-amp filter circuit 20 may comprise a TIA (transimpedance amplifier) and/or a HPF (high pass filter). And the FPGA demodulates the regular digital waveform signal to form a demodulated signal. The demodulation signal output by the FPGA is in a single-port RJ45 parallel input data form. Subsequently, the second switching integration unit 22 converts the demodulation signals in the form of single-port RJ45 parallel input data into the form of multi-port RJ45 parallel output data, and after obtaining the information to be received, the information to be received is output by human-computer interaction through the user interaction unit 23.
Optionally, the control module 12 is configured to perform IP bit synchronization confirmation on the information to be sent in the form of single-port RJ45 parallel output data, form a modulation signal after binary frequency shift keying modulation processing and RS channel coding processing, press the modulation signal into a sending buffer of the FIFO memory, and finally output the modulation signal to the acceleration switch circuit at a predetermined clock cycle of the phase-locked loop.
Fig. 2 is a schematic diagram of a control module processing information to be transmitted in the embodiment of the present invention. In order to solve the problem of congestion in large data volume transmission and improve the signal transmission quality, when the information to be transmitted is transmitted to the outside through the deep ultraviolet LED array 16, a front-stage RJ45 network port (i.e., the acquisition unit 10) in the full-duplex deep ultraviolet communication device acquires the configuration information of the first switching integrated unit 11, and inputs the configuration information to the ethernet port chip (i.e., the first switching integrated unit 11) in an 8-channel parallel manner, and the ethernet port chip performs multi-channel to single-channel aggregation to the FPGA for processing. As shown in fig. 2, the first switching integrated unit 11 inputs the information to be transmitted through an RJ45 port of the FPGA. After the FPGA unpacks the ethernet for the information to be sent, the FPGA performs IP bit synchronization confirmation (i.e., IP packet decision), performs binary frequency shift keying modulation (i.e., FSK modulation) via the modem unit 124 in the FPGA, performs Reed-Solomon channel coding (i.e., RS channel coding) with the channel coding unit 121 in the FPGA, and then presses the information into a sending buffer area of a FIFO (First Input First Output) memory in the control module 12, and finally outputs a signal (i.e., the modulation signal) of the sending buffer area to the acceleration switch circuit 14 at a predetermined clock cycle in a phase-locked loop.
Optionally, the control module 12 is further configured to detect an output bit, a synchronization flag bit, and bit stream data of the regular digital waveform signal, and determine whether a complete byte is received according to the detected output bit, synchronization flag bit, and bit stream data, and if yes, store the regular digital waveform signal in a to-be-decoded data area of the FIFO memory;
the RS decoding top layer in the control module 12 reads data from the data area to be decoded of the FIFO memory and performs decoding processing, and checks whether error codes occur in the data stored in the data area to be decoded while decoding, so as to determine whether the format of a transparent transmission data packet is satisfied;
after confirming that the data stored in the data area to be decoded meets the format of a transparent transmission data packet, the control module 12 directly writes the decoded demodulation signal into the receiving buffer area of the FIFO memory, and a top-layer transceiver unit in the control module 12 transmits the demodulation signal to the second switching integrated unit through ethernet.
FIG. 3 is a schematic diagram of a control module in processing information to be received in accordance with an embodiment of the present invention. In order to solve the problem of large data volume transmission congestion and improve the signal transmission quality, when the full-duplex deep ultraviolet communication device receives the information to be received, the FPGA judges whether a complete byte is received by detecting an output bit, a synchronization flag bit and bit stream data of the received data received from the analog-to-digital conversion unit 21, and if so, stores the received data in a data area to be decoded of the FIFO memory. Then, the data synchronization unit 123 in the FPGA performs synchronization operation to synchronize the asynchronous data. And then, the RS decoding top layer in the FPGA reads data from a data area to be decoded of the FIFO memory, decodes the data, and simultaneously checks whether error codes occur in the received data so as to determine whether the format of the transparent transmission data packet is met. And if the format of the transparent transmission data packet is determined to be satisfied, directly writing the data into a receiving buffer area of the FIFO memory. Finally, the top transceiver unit in the FPGA transmits the received data in the receive buffer of the FIFO memory to the RJ45 port (i.e., the second switch integrated unit 22) via ethernet.
Transparent transmission means that any combination of bit stream data should be able to be transmitted over the link. In the concrete implementation, it is necessary to ensure that the bit combination in the transmitted data is distinguished from the control information, so as to implement transparent transmission. That is, satisfying the format of the transparent transmission packet means that it is satisfied that the bit combination in the transmitted data is distinguished from the control information. In the embodiment, a character filling method is adopted at the bottom layer of the IP core of the FPGA, namely, escape control characters are filled in the frame header of a data frame, so that the misjudgment condition that the data information bit is the same as a specific character is avoided.
The FPGA may further have a serial port driving unit 126 according to actual needs, so as to implement serial port driving. The FPGA may further have a network port configuration unit 125 according to actual needs, so that a user may flexibly configure the input network port and/or the output network port of the FPGA.
Optionally, the user interaction unit 23 includes a touch display screen;
the touch display screen is further configured to receive an instruction sent by a user, and the control module 12 executes a corresponding operation according to the instruction.
Optionally, the instruction includes adjusting a working state of the full-duplex deep ultraviolet light communication device and remote control of the acquisition unit, where the working state includes one or more of a shutdown state, a signal transmitting state, a signal receiving state, and a signal transmitting and receiving full-duplex state.
For example, a user may implement remote control on the acquisition unit 10 by touching the display screen, for example, adjust the accuracy of the acquisition unit 10 for acquiring audio signals, video information, or sensing signals, or change the communication mode between the acquisition unit 10 and an external device or the first switching integration unit 11, so as to implement remote configuration on the acquisition unit 10. When the full-duplex deep ultraviolet communication device transmits the information to be sent to the outside, the touch display screen can also be used for displaying the information to be sent, so that a user can confirm whether the information to be sent is accurate. The emission driving unit 122 in the control module 12 is used for driving and controlling the touch display screen.
In order to dissipate heat of the deep ultraviolet LED array in time, so as to improve the service life of the deep ultraviolet LED array, optionally, the emission module further includes:
and the heat dissipation unit 17 is arranged at the periphery of the deep ultraviolet LED array 16 and used for performing heat dissipation treatment on the deep ultraviolet LED array 16.
In order to reduce the influence of ambient light on the signal received by the photodetector, thereby further improving the quality of deep ultraviolet light communication, optionally, the receiving module further includes:
and the filter 18 is arranged at the receiving end of the photoelectric detector 19 and used for filtering background light mixed in the second deep ultraviolet modulation optical signal.
Furthermore, the present embodiment further provides a method for controlling a full-duplex deep ultraviolet communication apparatus according to any one of the above embodiments. Fig. 4 is a schematic flow chart of a method of the full-duplex deep ultraviolet communication device in transmitting a signal according to the embodiment of the present invention, and fig. 5 is a schematic flow chart of a method of the full-duplex deep ultraviolet communication device in receiving a signal according to the embodiment of the present invention. The structure of the full-duplex deep ultraviolet light communication device in this embodiment can be seen in fig. 1 to 3. As shown in fig. 1 to fig. 5, the method for controlling a full-duplex deep ultraviolet communication apparatus according to this embodiment includes the following steps:
step S41, receiving a message to be sent;
step S42, summarizing the information to be sent in a multi-port RJ45 parallel input data form and converting the information into a single-port RJ45 parallel output data form;
step S43, carrying out channel coding and binary frequency shift keying modulation on the information to be transmitted in a single-port RJ45 parallel output data form to form a modulation signal;
step S44, after the modulation signal is loaded to the power driving signal of the deep ultraviolet LED array, the deep ultraviolet LED array is driven to emit a first deep ultraviolet modulation light signal;
step S51, receiving a second deep ultraviolet modulation optical signal from the outside, and converting the second deep ultraviolet modulation optical signal into an electric signal;
step S52, amplifying the electric signal through two-stage negative feedback;
step S53, the amplified electric signal is judged to form a regular digital waveform signal;
step S54, demodulating the regular digital waveform signal to form a demodulation signal;
step S55, converting the demodulation signals in the form of single port RJ45 parallel input data into a form of multi-port RJ45 parallel output data to obtain information to be received;
and step S56, outputting the information to be received.
Optionally, the specific step of forming the modulation signal includes:
carrying out IP bit synchronization confirmation on the information to be sent in a single-port RJ45 parallel output data form;
forming a modulation signal after binary frequency shift keying modulation processing and RS channel coding processing;
pressing the modulation signal into a sending buffer area of an FIFO memory;
and outputting the modulation signal according to the specified clock period by a phase-locked loop.
Optionally, the specific step of forming the demodulated signal includes:
detecting an output bit, a synchronous flag bit and bit stream data of the regular digital waveform signal, judging whether a complete byte is received according to the detected output bit, the synchronous flag bit and the bit stream data, and if so, storing the regular digital waveform signal to a data area to be decoded of an FIFO memory;
reading data from the data area to be decoded of the FIFO memory and performing decoding processing, and checking whether error codes occur to the data stored in the data area to be decoded while decoding so as to determine whether the format of a transparent transmission data packet is met;
and after confirming that the data stored in the data area to be decoded meets the format of a transparent transmission data packet, directly writing the decoded demodulation signal into a receiving buffer area of the FIFO memory, and transmitting the demodulation signal through Ethernet.
The full-duplex deep ultraviolet light communication device and the control method thereof provided by the embodiment of the invention adopt deep ultraviolet light as a carrier for signal transmission, realize high-security data transmission, and have strong anti-interference capability of the deep ultraviolet light, thereby effectively improving the transmission quality of signals. Meanwhile, the full-duplex deep ultraviolet communication device can be used for non-line-of-sight communication and has the characteristics of high signal-to-noise ratio, no need of tracking and aiming and the like, thereby being beneficial to expanding the application field of the deep ultraviolet communication technology.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A full-duplex deep ultraviolet communication device is characterized by comprising an emitting module, a receiving module and a control module; wherein:
the transmitting module comprises an acquisition unit, a first exchange integrated unit, a driving unit, an acceleration switch circuit, a transistor driving unit and a deep ultraviolet LED array; the acquisition unit is used for receiving information to be sent; the first switching integration unit is used for summarizing the information to be sent in a multi-port RJ45 parallel input data form from the acquisition unit, converting the information into a single-port RJ45 parallel output data form and transmitting the information to the control module; the control module is used for carrying out channel coding and binary frequency shift keying modulation on the information to be sent in a single-port RJ45 parallel output data form, forming a modulation signal and transmitting the modulation signal to the acceleration switch circuit; the driving unit is used for providing a power supply driving signal for the deep ultraviolet LED array, the output end of the driving unit is connected with the acceleration switch circuit, and the acceleration switch circuit loads the modulation signal to the power supply driving signal; the input end of the transistor driving unit is connected with the acceleration switch circuit, and the output end of the transistor driving unit is connected with the deep ultraviolet LED array and is used for driving the deep ultraviolet LED array to emit a first deep ultraviolet modulation optical signal;
the receiving module comprises a photoelectric detector, an operational amplifier filter circuit, an analog-to-digital conversion unit, a second exchange integrated unit and a user interaction unit; the photoelectric detector is used for receiving a second deep ultraviolet modulation optical signal from the outside and converting the second deep ultraviolet modulation optical signal into an electric signal; the operational amplifier filter circuit is used for amplifying the electric signal through two-stage negative feedback; the analog-to-digital conversion unit is used for judging the amplified electric signal and outputting a regular digital waveform signal; the control module is used for demodulating the regular digital waveform signal to form a demodulation signal; the second switching integrated unit is used for converting the demodulation signals in a single-port RJ45 parallel input data form from the control module into a multi-port RJ45 parallel output data form to obtain information to be received; and the user interaction unit is used for outputting the information to be received.
2. The full-duplex deep ultraviolet communication device according to claim 1, wherein the control module is configured to perform IP bit synchronization confirmation on the information to be transmitted in the form of single-port RJ45 parallel output data, form a modulation signal after binary frequency shift keying modulation processing and RS channel coding processing, press the modulation signal into a transmission buffer of the FIFO memory, and finally output the modulation signal to the speed-up switch circuit at a predetermined clock cycle of the phase-locked loop.
3. The full-duplex deep ultraviolet light communication device according to claim 1, wherein the control module is further configured to detect an output bit, a synchronization flag bit, and bit stream data of the regular digital waveform signal, and determine whether a complete byte is received according to the detected output bit, synchronization flag bit, and bit stream data, and if so, store the regular digital waveform signal in a data area to be decoded of a FIFO memory;
an RS decoding top layer in the control module reads data from the data area to be decoded of the FIFO memory and performs decoding processing, and checks whether error codes occur in the data stored in the data area to be decoded while decoding so as to determine whether the format of a transparent transmission data packet is met;
after the control module confirms that the data stored in the data area to be decoded meets the format of a transparent transmission data packet, the control module directly writes the decoded demodulation signal into a receiving buffer area of the FIFO memory, and a top-layer transceiving unit in the control module transmits the demodulation signal to the second switching integrated unit through Ethernet.
4. The full-duplex DUV communication apparatus according to claim 1, wherein said user interaction unit comprises a touch screen display;
the touch display screen is also used for receiving an instruction sent by a user, and the control module executes corresponding operation according to the instruction.
5. The full-duplex DUV communication apparatus according to claim 4, wherein said instruction includes adjusting an operating state of said full-duplex DUV communication apparatus and a remote control of said acquisition unit, said operating state includes one or more of an OFF state, a signal transmitting state, a signal receiving state, and a signal transmitting and receiving full-duplex state.
6. The full-duplex deep ultraviolet light communication device according to claim 1, wherein the transmitting module further comprises:
and the heat dissipation unit is arranged at the periphery of the deep ultraviolet LED array and is used for carrying out heat dissipation treatment on the deep ultraviolet LED array.
7. The full-duplex deep ultraviolet light communication device according to claim 1, wherein the receiving module further comprises:
and the filter is arranged at the receiving end of the photoelectric detector and used for filtering background light mixed in the second deep ultraviolet modulation optical signal.
8. A method for controlling a full-duplex deep ultraviolet light communication apparatus according to any one of claims 1 to 7, comprising the steps of:
receiving information to be transmitted;
summarizing the information to be sent in a multi-port RJ45 parallel input data form and converting the information into a single-port RJ45 parallel output data form;
carrying out channel coding and binary frequency shift keying modulation on the information to be transmitted in a single-port RJ45 parallel output data form to form a modulation signal;
after the modulation signal is loaded to a power supply driving signal of the deep ultraviolet LED array, driving the deep ultraviolet LED array to emit a first deep ultraviolet modulation light signal;
receiving a second deep ultraviolet modulation optical signal from the outside and converting the second deep ultraviolet modulation optical signal into an electric signal;
amplifying the electric signal through two-stage negative feedback;
judging the amplified electric signal to form a regular digital waveform signal;
demodulating the regular digital waveform signal to form a demodulated signal;
converting the demodulation signals in a single-port RJ45 parallel input data form into a multi-port RJ45 parallel output data form to obtain information to be received;
and outputting the information to be received.
9. The method for controlling a full-duplex deep ultraviolet light communication device according to claim 8, wherein the step of forming the modulation signal comprises:
carrying out IP bit synchronization confirmation on the information to be sent in a single-port RJ45 parallel output data form;
forming a modulation signal after binary frequency shift keying modulation processing and RS channel coding processing;
pressing the modulation signal into a sending buffer area of an FIFO memory;
and outputting the modulation signal according to the specified clock period by a phase-locked loop.
10. The method for controlling a full-duplex deep ultraviolet light communication device according to claim 8, wherein the step of forming the demodulation signal comprises:
detecting an output bit, a synchronous flag bit and bit stream data of the regular digital waveform signal, judging whether a complete byte is received according to the detected output bit, the synchronous flag bit and the bit stream data, and if so, storing the regular digital waveform signal to a data area to be decoded of an FIFO memory;
reading data from the data area to be decoded of the FIFO memory and performing decoding processing, and checking whether error codes occur to the data stored in the data area to be decoded while decoding so as to determine whether the format of a transparent transmission data packet is met;
and after confirming that the data stored in the data area to be decoded meets the format of a transparent transmission data packet, directly writing the decoded demodulation signal into a receiving buffer area of the FIFO memory, and transmitting the demodulation signal through Ethernet.
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