Low-power-consumption photoelectric information transmission method, device, equipment and medium

Abstract

The invention relates to the technical field of information transmission, and particularly provides a low-power-consumption photoelectric information transmission method, device, equipment and medium, and the method comprises the steps that a transmitting end converts a data code stream into an optical signal through a signal generator, and dynamically optimizes the transmitting power through a multi-stage adjustable gain amplifier; therefore, different coding rates, modulation modes and channel attenuation can be adapted, and the stability of the signal in the transmission process can be ensured. In addition, channels with different wavelengths are combined by adopting a wavelength division multiplexing technology, so that the bandwidth and the flexibility are remarkably improved. At a receiving end, a photoelectric detector converts an optical signal into an electric signal, the system monitors the power and the noise ratio in real time, and the gain is adaptively adjusted to ensure the signal quality. The method effectively solves the problems of unstable signal quality and lack of real-time adjustment capability in the prior art. Meanwhile, by optimizing the gain and the power, the overall power consumption is reduced, the energy efficiency is improved, the service life of the system is prolonged, and the requirement of low-power-consumption communication is met.

Description

Technical Field

[0001] The present invention relates to the field of optoelectronic information transmission technology, and specifically provides a low-power optoelectronic information transmission method, device, equipment and medium. Background Art

[0002] In the prior art, optical communication is one of the main ways of information transmission, and its transmission media are mainly divided into optical fiber and free space. Optical fiber transmission uses optical fiber as the transmission medium, which is suitable for long-distance, large-capacity and high-reliability communication transmission. However, the laying and installation costs of optical fiber are high, and it cannot be applied to some specific application scenarios. In contrast, free space optical communication uses light waves in the spectral range of visible light, laser, etc. as information carriers, which has the advantages of high flexibility and low cost.

[0003] The working principle of free-space optical communication is as follows: the source generates a data code stream, which is converted into a format, amplitude, frequency or intensity modulated signal suitable for optical transmission through an encoder and modulator, and then converted into a light wave through a light source. The light wave is transmitted to the detector at the receiving end through an optical antenna and an optical channel. The detector converts the optical signal into an electrical signal and restores the original data through a demodulator.

[0004] However, free-space optical communication faces adverse factors such as atmospheric turbulence and weather changes, which cause signal attenuation and distortion. In addition, the transmission power optimization process is not intelligent enough and consumes high power. The transmitter and receiver in the prior art often use fixed gain and fixed power modes, which cannot be adjusted according to the real-time transmission situation, resulting in unstable signal transmission quality, especially at different communication distances, where signal strength attenuation leads to signal quality degradation; and there is also a lack of adaptive measures for wireless channels, which cannot achieve dynamic power consumption optimization, resulting in energy waste. Summary of the invention

[0005] The present invention provides a low-power optoelectronic information transmission method, device, equipment and medium to solve technical problems in existing free-space optical communication technology, such as unstable signal transmission quality, inability to adjust according to real-time transmission conditions, high power consumption and lack of adaptability to different communication distances.

[0006] In a first aspect, the present invention provides a low-power optoelectronic information transmission method, the method comprising: at the transmitting end, inputting a data code stream to be transmitted through a signal generator, and converting the data code stream into an optical signal according to a selected coding rate and modulation mode; performing transmission power optimization processing according to the coding rate, the modulation mode and the transmission attenuation degree of the transmission channel through a multi-stage adjustable gain amplifier; amplifying the signal through a multi-stage power amplifier, and using wavelength division multiplexing technology to merge different wavelength channels into the same transmission channel to achieve multi-channel communication; at the receiving end, a photoelectric detector converts the optical signal into an electrical signal, and performs receiving power optimization processing according to the coding rate, the received power and the noise-to-signal ratio, and adaptively adjusts the signal gain according to the power change and the noise-to-signal ratio requirement of the receiving end through a multi-stage adjustable gain amplifier; demodulating the signal according to the coding rate and the modulation mode, and decoding the received data code stream into original data.

[0007] In some implementations, inputting a data stream to be transmitted through a signal generator includes: Pre-adjusting the sine wave signal output by the signal generator at the transmitting end specifically includes: The output power of the sine wave signal is adjusted by the following calculation formula (1): (1) in, Represents the output power value of the adjusted sine wave signal, Indicates the level amplitude of the sine wave signal. Indicates the value of the data stream to be transmitted. is the modulation depth of the sine wave signal, which is used to adjust the amplitude relationship between the sine wave signal and the data code stream; According to the output power value of the adjusted sine wave signal, the transmission rate is calculated by the following formula (2), and the relationship between the transmission rate and the output power is obtained: (2) in, Indicates the transmission rate, represents the noise power spectral density, Indicates the transmission bandwidth.

[0008] According to the transmission rate requirement and bit error rate constraint of the required modulation mode, the value range satisfied by the output power value of the sine wave signal is determined as follows: in, Indicates the minimum output power, Indicates the maximum output power, The bit error rate constraint must be met; The relationship between the modulation depth and the output power within this value range is calculated by the following formula (3): (3); Based on the modulation depth and output power, the output power and modulation depth of the sine wave signal are pre-adjusted by the following formula (4), and the amplitude control parameters of the signal generator are adjusted: (4) in, Indicates the amplitude of the adjusted sine wave signal level; After the pre-adjustment, the data code stream and the sine wave signal are combined to obtain a mathematical model of the sine wave, as shown in the following formula (5): (5) in, The mathematical model that represents the sine wave, represents the frequency of the sine wave, represents the phase of the sine wave signal, Represents a time variable, which is used to describe the change of a sine wave signal over time.

[0009] In some implementations, the transmission power optimization process is performed by using a multi-stage adjustable gain amplifier according to a coding rate, a modulation mode, and a transmission attenuation degree of a transmission channel, including: inputting the pre-adjusted beam into a multi-stage adjustable gain amplifier; According to the power level of the input beam signal, the required amplification gain at this power level is calculated by the following formula (6): (6) in, represents the amplification gain, represents the expected output power, Indicates the power level of the input beam signal.

[0010] According to the calculation result of the amplification gain, selecting an adjustable gain amplifier corresponding to the amplification gain; Power detection is performed at the output end, and the amplification gain of the amplifier is adjusted according to the output beam power detection result. If the output beam power is lower than the expected output power, the amplification gain of the amplifier continues to be adjusted. If the output beam power is higher than the expected output power, the output level amplitude of the amplifier is adjusted until the output beam power reaches the expected value.

[0011] In some embodiments, the wavelength division multiplexing technology includes: Sine wave signals of different wavelengths are modulated onto corresponding transmission channels, multiplexed and transmitted to the receiving end to achieve multi-channel communication in parallel.

[0012] In some embodiments, the method further comprises: According to the influence of output beam power and noise, the minimum receiving power required by the receiving end is calculated by the following formula (7): (7) in, Indicates the minimum received power, represents the minimum signal-to-noise ratio required by the receiver, represents the Boltzmann constant, represents absolute temperature, represents the noise power spectral density, Indicates the transmission bandwidth.

[0013] In some implementations, performing receive power optimization according to the minimum receive power value includes: The electrical signal after photodiode detection is calculated by formula (8): (8) in, Represents the electrical signal after detection by the photodiode, represents the photoelectric conversion gain, Indicates the input optical power; Perform digital signal processing, amplify and filter the electrical signal, and calculate the signal after gain using formula (9): (9) in, represents the signal after gain, represents the amplification gain coefficient, Represents the electrical signal after detection by the photodiode, Indicates noise; According to the minimum received power value, the output power and gain requirements of the adjustable gain amplifier are calculated and the initial value is set; Calculating the corresponding power gain and signal-to-noise ratio gain respectively according to the signal after gain and the electrical signal after detection by the photodiode; Comparing the power gain and the signal-to-noise ratio gain to obtain a larger gain; Updating the gain of the adjustable gain amplifier to the larger gain to obtain a signal after a new gain; The corresponding power gain and the signal-to-noise ratio gain are calculated respectively according to the signal after gain and the electrical signal after detection by the photodiode.

[0014] In some implementations, when calculating the bit error rate after receiving power optimization, assuming that the signal is a binary information sequence, the bit error rate is estimated as shown in the following formula (10): (10) in, represents the bit error rate, represents the gain, Indicates the signal receiving power, represents the signal-to-noise ratio, represents the noise power spectral density.

[0015] In a second aspect, the present invention further provides a low-power optoelectronic information transmission device, comprising: An input module is used to input the data code stream to be transmitted through a signal generator at the transmitting end, and convert the data code stream into an optical signal according to the selected coding rate and modulation mode; An optimization module, used for performing transmission power optimization processing according to the coding rate, the modulation mode and the transmission attenuation degree of the transmission channel through a multi-stage adjustable gain amplifier; A merging module is used to amplify the signal through a multi-stage power amplifier and use wavelength division multiplexing technology to merge different wavelength channels into the same transmission channel to achieve multi-channel communication; An adjustment module is used for, at the receiving end, a photoelectric detector converts an optical signal into an electrical signal, performs receiving power optimization processing according to the coding rate, received power and noise-to-signal ratio, and adaptively adjusts the signal gain according to the power change and noise-to-signal ratio requirement of the receiving end through a multi-stage adjustable gain amplifier; The decoding module is used to demodulate the signal according to the coding rate and the modulation mode, and decode the received data code stream into original data.

[0016] In a third aspect, the present invention further provides an electronic device, characterized in that it comprises: a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the low-power optoelectronic information transmission method described in any one of the above items is implemented.

[0017] In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the low-power optoelectronic information transmission method described in any one of the above items is implemented.

[0018] The present invention provides a low-power optoelectronic information transmission method. At the transmitting end, a data code stream to be transmitted is input through a signal generator, and the data code stream is converted into an optical signal according to the selected coding rate and modulation mode; a multi-stage adjustable gain amplifier is used to optimize the transmission power according to the coding rate, modulation mode and transmission attenuation of the transmission channel; by adopting a multi-stage adjustable gain amplifier, the transmitting end can optimize the transmission power according to the coding rate, modulation mode and channel attenuation. This dynamic adjustment can effectively respond to environmental changes and ensure the stability of signal quality during transmission. The signal is amplified by a multi-stage power amplifier, and different wavelength channels are merged into the same transmission channel using wavelength division multiplexing technology to achieve multi-channel communication; through wavelength division multiplexing technology, channels of different wavelengths can be merged into the same transmission channel, which significantly improves the bandwidth and flexibility of the system. This enables the system to flexibly adjust the transmission strategy according to different distances and environmental conditions, thereby effectively responding to signal attenuation problems. At the receiving end, the photodetector converts the optical signal into an electrical signal, and performs receiving power optimization processing according to the coding rate, received power and noise-to-signal ratio. Through the multi-stage adjustable gain amplifier, the signal gain is adaptively adjusted according to the power change and noise-to-signal ratio requirements of the receiving end; at the receiving end, by real-time monitoring of the received power and noise ratio, the system can adaptively adjust the gain to ensure that good signal quality can be maintained under various conditions. This mechanism significantly improves the adaptability of the system and solves the problem of lack of real-time adjustment capability in the prior art. According to the coding rate and the modulation mode, the signal is demodulated and the received data stream is decoded into the original data. With the multi-stage power amplifier and adjustable gain design, the transmission power is increased only when necessary, thereby reducing the overall power consumption. This optimization not only improves energy efficiency, but also extends the service life of the system and meets the needs of low-power communication.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic flow chart of the low-power optoelectronic information transmission method provided by the present invention; Figure 2 It is a schematic diagram of a flow chart of pre-adjusting a sine wave signal output by a signal generator at a transmitting end provided by the present invention; Figure 3 It is a structural schematic diagram of a low-power optoelectronic information transmission device provided by the present invention; Figure 4 It is a flow chart of a transmission method applied to a wireless optical communication system provided by the present invention; Figure 5 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Combine the following Figures 1 to 5 The embodiments shown describe the technical solution of the present invention: The embodiment of the present invention provides a low-power optoelectronic information transmission method, see Figure 1 ,include: S110. At the transmitting end, the data code stream to be transmitted is input through a signal generator, and the data code stream is converted into an optical signal according to the selected coding rate and modulation method.

[0024] S120, performing transmission power optimization processing according to the coding rate, modulation mode and transmission attenuation degree of the transmission channel through a multi-stage adjustable gain amplifier.

[0025] S130, amplify the signal through a multi-stage power amplifier, and use wavelength division multiplexing technology to merge different wavelength channels into the same transmission channel to achieve multi-channel communication.

[0026] S140. At the receiving end, the photodetector converts the optical signal into an electrical signal, performs receiving power optimization processing according to the coding rate, received power and noise-to-signal ratio, and adaptively adjusts the signal gain according to the power change and noise-to-signal ratio requirements of the receiving end through a multi-stage adjustable gain amplifier.

[0027] S150, demodulate the signal according to the coding rate and modulation mode, and decode the received data code stream into original data.

[0028] The multidimensional data processing method provided by the embodiment of the present invention, at the transmitting end, inputs the data code stream to be transmitted through a signal generator, and converts the data code stream into an optical signal according to the selected coding rate and modulation mode; through a multi-stage adjustable gain amplifier, the transmission power optimization processing is performed according to the coding rate, modulation mode and transmission attenuation of the transmission channel; by adopting a multi-stage adjustable gain amplifier, the transmitting end can optimize the transmission power according to the coding rate, modulation mode and channel attenuation. This dynamic adjustment can effectively respond to environmental changes and ensure the stability of signal quality during transmission. Through a multi-stage power amplifier, the signal is amplified, and different wavelength channels are merged into the same transmission channel using wavelength division multiplexing technology to achieve multi-channel communication; through wavelength division multiplexing technology, channels of different wavelengths can be merged into the same transmission channel, which significantly improves the bandwidth and flexibility of the system. This enables the system to flexibly adjust the transmission strategy according to different distances and environmental conditions, thereby effectively responding to signal attenuation problems. At the receiving end, the photodetector converts the optical signal into an electrical signal, and performs receiving power optimization processing according to the coding rate, received power and noise-to-signal ratio. Through the multi-stage adjustable gain amplifier, the signal gain is adaptively adjusted according to the power change and noise-to-signal ratio requirements of the receiving end; at the receiving end, by real-time monitoring of the received power and noise ratio, the system can adaptively adjust the gain to ensure that good signal quality can be maintained under various conditions. This mechanism significantly improves the adaptability of the system and solves the problem of lack of real-time adjustment capability in the prior art. According to the coding rate and the modulation mode, the signal is demodulated and the received data stream is decoded into the original data. With the multi-stage power amplifier and adjustable gain design, the transmission power is increased only when necessary, thereby reducing the overall power consumption. This optimization not only improves energy efficiency, but also extends the service life of the system and meets the needs of low-power communication.

[0029] In an exemplary embodiment, see Figure 2 In the above step S110, inputting the data stream to be transmitted through the signal generator may include the following steps: Pre-adjust the sine wave signal output by the signal generator at the transmitting end, specifically including: S111. Adjust the output power of the sine wave signal using the following calculation formula (1): (1) in, Represents the output power value of the adjusted sine wave signal, Indicates the level amplitude of the sine wave signal. Indicates the value of the data stream to be transmitted. is the modulation depth of the sine wave signal, which is used to adjust the amplitude relationship between the sine wave signal and the data code stream; S112. According to the output power value of the adjusted sinusoidal wave signal, the transmission rate is calculated by the following formula (2) to obtain the relationship between the transmission rate and the output power: (2) in, Indicates the transmission rate, represents the noise power spectral density, Indicates the transmission bandwidth; S113. According to the transmission rate requirement and bit error rate constraint of the required modulation mode, determine the value range satisfied by the output power value of the sine wave signal, expressed as: in, Indicates the minimum output power, Indicates the maximum output power, The bit error rate constraint must be met; The relationship between the modulation depth and the output power within this value range is calculated by the following formula (3): (3); S114. Based on the modulation depth and the output power, the output power and the modulation depth of the sine wave signal are pre-adjusted by the following formula (4), by adjusting the amplitude control parameter of the signal generator: (4) in, Indicates the amplitude of the adjusted sine wave signal level; S115. After pre-adjustment, the data code stream and the sine wave signal are combined to obtain a mathematical model of the sine wave, as shown in the following formula (5): (5) in, The mathematical model that represents the sine wave, represents the frequency of the sine wave, represents the phase of the sine wave signal, Represents a time variable, which is used to describe the change of a sine wave signal over time.

[0030] In an exemplary embodiment, a multi-stage adjustable gain amplifier is used to optimize the transmission power according to the coding rate, modulation mode and transmission attenuation of the transmission channel, including: inputting the pre-adjusted beam into a multi-stage adjustable gain amplifier; According to the power level of the input beam signal, the required amplification gain at this power level is calculated by the following formula (6): (6) in, represents the amplification gain, represents the expected output power, Indicates the power level of the input beam signal.

[0031] According to the calculation result of the amplification gain, an adjustable gain amplifier corresponding to the amplification gain is selected; Power detection is performed at the output end, and the amplifier gain is adjusted according to the output beam power detection result. If the output beam power is lower than the expected output power, the amplifier gain is further adjusted. If the output beam power is higher than the expected output power, the output level amplitude of the amplifier is adjusted until the output beam power reaches the expected value.

[0032] In an exemplary embodiment, the wavelength division multiplexing technology includes: Sine wave signals of different wavelengths are modulated onto corresponding transmission channels, multiplexed and transmitted to the receiving end to achieve multi-channel communication in parallel.

[0033] In an exemplary embodiment, the method further comprises: According to the influence of output beam power and noise, the minimum receiving power required by the receiving end is calculated by the following formula (7): (7) in, Indicates the minimum received power, represents the minimum signal-to-noise ratio required by the receiver, represents the Boltzmann constant, represents absolute temperature, represents the noise power spectral density, Indicates the transmission bandwidth.

[0034] In an exemplary embodiment, performing receive power optimization according to a minimum receive power value includes: The electrical signal after photodiode detection is calculated by formula (8): (8) in, Represents the electrical signal after detection by the photodiode, represents the photoelectric conversion gain, Indicates the input optical power; Perform digital signal processing, amplify and filter the electrical signal, and calculate the signal after gain using formula (9): (9) in, represents the signal after gain, represents the amplification gain coefficient, Represents the electrical signal after detection by the photodiode, Indicates noise; According to the minimum received power value, the output power and gain requirements of the adjustable gain amplifier are calculated and the initial value is set; According to the signal after gain and the electrical signal after photodiode detection, the corresponding power gain and signal-to-noise ratio gain are calculated respectively; Compare the power gain and the signal-to-noise ratio gain to get the larger gain; The gain of the adjustable gain amplifier is updated to a larger gain to obtain a signal after a new gain; According to the signal after gain and the electrical signal after photodiode detection, the corresponding power gain and signal-to-noise ratio gain are calculated respectively.

[0035] In an exemplary embodiment, when calculating the bit error rate after receiving power optimization, assuming that the signal is a binary information sequence, the bit error rate is estimated as shown in the following formula (10): (10) in, represents the bit error rate, represents the gain, Indicates the signal receiving power, represents the signal-to-noise ratio, represents the noise power spectral density.

[0036] See also Figure 3 , an exemplary embodiment of the present invention provides a low-power optoelectronic information transmission device, the low-power optoelectronic information transmission device comprising: an input module 301, an optimization module 302, a merging module 303, an adjustment module 304 and a decoding module 305; The input module 301 is used to input the data code stream to be transmitted through the signal generator at the transmitting end, and convert the data code stream into an optical signal according to the selected coding rate and modulation mode; The optimization module 302 is used to optimize the transmission power according to the coding rate, modulation mode and transmission attenuation degree of the transmission channel through a multi-stage adjustable gain amplifier; The merging module 303 is used to amplify the signal through a multi-stage power amplifier, and use wavelength division multiplexing technology to merge different wavelength channels into the same transmission channel to achieve multi-channel communication; The adjustment module 304 is used for converting the optical signal into an electrical signal at the receiving end by the photodetector, performing receiving power optimization processing according to the coding rate, received power and noise-to-signal ratio, and adaptively adjusting the signal gain according to the power change and noise-to-signal ratio requirement of the receiving end through a multi-stage adjustable gain amplifier; The decoding module 305 is used to demodulate the signal according to the coding rate and modulation mode, and decode the received data code stream into original data.

[0037] Those skilled in the art should understand that the division of the various modules in the embodiment is merely a division of logical functions, and in actual application, all or part of them can be integrated into one or more actual carriers, and these modules can all be implemented in the form of software called through a processing unit, or all in the form of hardware, or in the form of a combination of software and hardware. It should be noted that each module in the low-power optoelectronic information transmission device in this embodiment corresponds one-to-one to each step in the low-power optoelectronic information transmission method in the above-mentioned embodiment. Therefore, the specific implementation of this embodiment can refer to the above-mentioned implementation of the low-power optoelectronic information transmission, which will not be repeated here.

[0038] See also Figure 4 , is a specific process of the transmission method of the present invention applied to a wireless optical communication system provided by another exemplary embodiment of the present invention, and the specific process includes: S400: At the transmitting end, the signal generator outputs a pre-adjusted sine wave signal.

[0039] S410: In the signal processor, the output power of the sine wave is determined according to the data code stream and the beam signal. After the output power is determined, the output power is input into the multi-stage adjustable gain amplifier.

[0040] S420: Determine an amplification gain according to a power requirement of an input signal, and input the amplification gain to a multi-stage power amplifier.

[0041] S430: Amplify the signal to a suitable power level according to the amplification gain and output it to the wavelength division multiplexer.

[0042] S440, multiplex beam signals of different wavelengths and transmit them in parallel to a receiving end.

[0043] S450. At the receiving end, the photodetector converts the light wave signal into an electrical signal and inputs it into a signal processor.

[0044] S460: In the signal processor, the electrical signal detected by the photodiode is calculated.

[0045] S470, performing digital signal processing, including amplification and filtering, to obtain a gained signal.

[0046] S480: Determine the minimum receiving power value, power gain, and signal-to-noise ratio gain required by the receiver.

[0047] S490. In the adjustable gain amplifier, adjust the signal gain according to the power gain and the signal-to-noise ratio gain.

[0048] An embodiment of the present invention further provides an electronic device, comprising: a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the low-power optoelectronic information transmission method as described above when executed by the processor.

[0049] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the low-power optoelectronic information transmission method as described above is implemented.

[0050] Figure 5 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 5 As shown, the electronic device may include: a processor (processor) 510, a communication interface (Communications Interface) 520, a memory (memory) 530 and a communication bus 540, wherein the processor 510, the communication interface 520, and the memory 530 communicate with each other through the communication bus 540. The processor 510 can call the logic instructions in the memory 530 to execute a low-power optoelectronic information transmission method, which includes: at the transmitting end, inputting the data code stream to be transmitted through a signal generator, and converting the data code stream into an optical signal according to the selected coding rate and modulation method; through a multi-stage adjustable gain amplifier, performing transmission power optimization processing according to the coding rate, modulation method and transmission attenuation of the transmission channel; through a multi-stage power amplifier, amplifying the signal, and using wavelength division multiplexing technology to merge different wavelength channels into the same transmission channel to achieve multi-channel communication; at the receiving end, the photoelectric detector converts the optical signal into an electrical signal, and performs receiving power optimization processing according to the coding rate, received power and noise-to-signal ratio, and through a multi-stage adjustable gain amplifier, adaptively adjusts the signal gain according to the power change and noise-to-signal ratio requirements of the receiving end; according to the coding rate and modulation method, demodulate the signal and decode the received data code stream into original data.

[0051] In addition, the logic instructions in the above-mentioned memory 530 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0052] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the low-power optoelectronic information transmission method provided by the above methods, and the method includes: receiving original data input by a user, extracting the original data using an improved prototype chain technology based on JavaScript to obtain extracted data; converting the extracted data into multidimensional visualization data through logical processing, and storing the multidimensional visualization data; encapsulating the multidimensional visualization data to obtain multidimensional encapsulated data, wherein encapsulation includes data compression, data blocking, and index construction; preloading the multidimensional encapsulated data to obtain preloaded data; and displaying the preloaded data in a multidimensional visualization manner.

[0053] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the multidimensional data processing method provided by the above-mentioned methods, the method comprising: at the transmitting end, inputting a data code stream to be transmitted through a signal generator, and converting the data code stream into an optical signal according to a selected coding rate and modulation method; performing transmission power optimization processing according to the coding rate, modulation method and transmission attenuation degree of the transmission channel through a multi-stage adjustable gain amplifier; amplifying the signal through a multi-stage power amplifier, and using wavelength division multiplexing technology to merge different wavelength channels into the same transmission channel to realize multi-channel communication; at the receiving end, a photoelectric detector converts the optical signal into an electrical signal, and performs receiving power optimization processing according to the coding rate, received power and noise-to-signal ratio, and adaptively adjusts the signal gain according to the power change and noise-to-signal ratio requirements of the receiving end through a multi-stage adjustable gain amplifier; demodulating the signal according to the coding rate and modulation method, and decoding the received data code stream into original data.

[0054] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0055] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A low-power optoelectronic information transmission method, characterized in that: include: At the transmitting end, the data code stream to be transmitted is input through a signal generator, and the data code stream is converted into an optical signal according to the selected coding rate and modulation method; Through a multi-stage adjustable gain amplifier, transmission power optimization processing is performed according to the coding rate, the modulation mode and the transmission attenuation degree of the transmission channel; The signal is amplified through a multi-stage power amplifier, and wavelength division multiplexing technology is used to merge different wavelength channels into the same transmission channel to achieve multi-channel communication; At the receiving end, the photodetector converts the optical signal into an electrical signal, performs receiving power optimization processing according to the coding rate, received power and noise-to-signal ratio, and adaptively adjusts the signal gain according to the power change and noise-to-signal ratio requirements of the receiving end through a multi-stage adjustable gain amplifier; According to the coding rate and the modulation mode, the signal is demodulated and the received data code stream is decoded into original data.

2. The low-power optoelectronic information transmission method according to claim 1, characterized in that: The step of inputting the data stream to be transmitted through a signal generator comprises: Pre-adjusting the sine wave signal output by the signal generator at the transmitting end specifically includes: The output power of the sine wave signal is adjusted by the following calculation formula (1): （1） in, Represents the output power value of the adjusted sine wave signal, Indicates the level amplitude of the sine wave signal. Indicates the value of the data stream to be transmitted. is the modulation depth of the sine wave signal, which is used to adjust the amplitude relationship between the sine wave signal and the data code stream; According to the output power value of the adjusted sine wave signal, the transmission rate is calculated by the following formula (2), and the relationship between the transmission rate and the output power is obtained: （2） in, Indicates the transmission rate, represents the noise power spectral density, Indicates the transmission bandwidth; According to the transmission rate requirement and bit error rate constraint of the required modulation mode, the value range satisfied by the output power value of the sine wave signal is determined as follows: in, Indicates the minimum output power, Indicates the maximum output power, The bit error rate constraint must be met; The relationship between the modulation depth and the output power within this value range is calculated by the following formula (3): （3）； Based on the modulation depth and output power, the output power and modulation depth of the sine wave signal are pre-adjusted by the following formula (4), and the amplitude control parameters of the signal generator are adjusted: （4） in, Indicates the amplitude of the adjusted sine wave signal level; After the pre-adjustment, the data code stream and the sine wave signal are combined to obtain a mathematical model of the sine wave, as shown in the following formula (5): （5） in, The mathematical model that represents the sine wave, represents the frequency of the sine wave, represents the phase of the sine wave signal, Represents a time variable, which is used to describe the change of a sine wave signal over time.

3. The low-power optoelectronic information transmission method according to claim 2, characterized in that: The method of performing transmit power optimization processing according to the coding rate, modulation mode and transmission attenuation degree of the transmission channel through a multi-stage adjustable gain amplifier includes: inputting the pre-adjusted beam into a multi-stage adjustable gain amplifier; According to the power level of the input beam signal, the required amplification gain at this power level is calculated by the following formula (6): （6） in, represents the amplification gain, represents the expected output power, Indicates the power level of the input beam signal; According to the calculation result of the amplification gain, selecting an adjustable gain amplifier corresponding to the amplification gain; Power detection is performed at the output end, and the amplification gain of the amplifier is adjusted according to the output beam power detection result. If the output beam power is lower than the expected output power, the amplification gain of the amplifier continues to be adjusted. If the output beam power is higher than the expected output power, the output level amplitude of the amplifier is adjusted until the output beam power reaches the expected value.

4. The low-power optoelectronic information transmission method according to claim 1, characterized in that: The wavelength division multiplexing technology includes: Sine wave signals of different wavelengths are modulated onto corresponding transmission channels, multiplexed and transmitted to the receiving end to achieve multi-channel communication in parallel.

5. The low-power optoelectronic information transmission method according to claim 3, characterized in that: The method further comprises: According to the influence of output beam power and noise, the minimum receiving power required by the receiving end is calculated by the following formula (7): （7） in, Indicates the minimum received power, represents the minimum signal-to-noise ratio required by the receiver, represents the Boltzmann constant, represents absolute temperature, represents the noise power spectral density, Indicates the transmission bandwidth.

6. The low-power optoelectronic information transmission method according to claim 5, characterized in that: Optimizing the received power according to the minimum received power value includes: The electrical signal after photodiode detection is calculated by formula (8): （8） in, Represents the electrical signal after detection by the photodiode, represents the photoelectric conversion gain, Indicates the input optical power; Perform digital signal processing, amplify and filter the electrical signal, and calculate the signal after gain using formula (9): （9） in, represents the signal after gain, represents the amplification gain coefficient, Represents the electrical signal after detection by the photodiode, Indicates noise; According to the minimum received power value, the output power and gain requirements of the adjustable gain amplifier are calculated and the initial value is set; Calculating the corresponding power gain and signal-to-noise ratio gain respectively according to the signal after gain and the electrical signal after detection by the photodiode; Comparing the power gain and the signal-to-noise ratio gain to obtain a larger gain; Updating the gain of the adjustable gain amplifier to the larger gain to obtain a signal after a new gain; The corresponding power gain and the signal-to-noise ratio gain are calculated respectively according to the signal after gain and the electrical signal after detection by the photodiode.

7. The low-power optoelectronic information transmission method according to claim 1, characterized in that: When calculating the bit error rate after receiving power optimization, assuming that the signal is a binary information sequence, the bit error rate is estimated as shown in the following formula (10): （10） in, represents the bit error rate, represents the gain, Indicates the signal receiving power, represents the signal-to-noise ratio, represents the noise power spectral density.

8. A low-power optoelectronic information transmission device, characterized in that: include: An input module is used to input the data code stream to be transmitted through a signal generator at the transmitting end, and convert the data code stream into an optical signal according to the selected coding rate and modulation mode; An optimization module, used for performing transmission power optimization processing according to the coding rate, the modulation mode and the transmission attenuation degree of the transmission channel through a multi-stage adjustable gain amplifier; A merging module is used to amplify the signal through a multi-stage power amplifier and use wavelength division multiplexing technology to merge different wavelength channels into the same transmission channel to achieve multi-channel communication; An adjustment module is used for, at the receiving end, a photoelectric detector converts an optical signal into an electrical signal, performs receiving power optimization processing according to the coding rate, received power and noise-to-signal ratio, and adaptively adjusts the signal gain according to the power change and noise-to-signal ratio requirement of the receiving end through a multi-stage adjustable gain amplifier; The decoding module is used to demodulate the signal according to the coding rate and the modulation mode, and decode the received data code stream into original data.

9. An electronic device, characterized in that: include: A processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the low-power optoelectronic information transmission method as claimed in any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the low-power optoelectronic information transmission method according to any one of claims 1 to 7 is implemented.

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