An optical fiber coding recognition system, method and storage medium

Abstract

An optical fiber coding identification system, method and storage medium, the system comprises a pulsed light source module, a pulsed light source control module, a circulator, an optoelectronic processing module, a signal conditioning module, a main control module. By utilizing the pulsed light source control module, the pulsed light source module can emit pulsed light waves corresponding to the target distance optical fiber coding. The pulsed light waves have a target duration, a target intensity and a target wavelength. Therefore, when the pulsed light waves are transmitted to the target distance optical fiber coding for reflection through the circulator, the reflected light waves can present clear characteristics in the spectrum. After further adjustment and optimization by the signal conditioning module, the optoelectronic processing module can output digital signals for realizing target distance optical fiber coding identification. Finally, the main control module analyzes the digital signals to realize the identification of the target distance optical fiber coding, realizes the adaptive identification of optical fiber coding with different distances, has a high success rate of analysis and good identification effect.

Description

Technical Field

[0001] This invention relates to the field of optical fiber communication, and in particular to an optical fiber encoding and identification system, method and storage medium. Background Technology

[0002] In fiber optic communication networks, multiple fiber codes are typically installed, each at a different distance from the fiber code identification device. This variation in distance results in several intensities: nearby fiber codes produce excessively strong reflected light, making it impossible to distinguish and analyze the reflected light from each grating in the fiber code, as the reflected light from distant fiber codes is too weak, leading to a lack of energy in the reflected light from some gratings, thus preventing the identification of those gratings. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a fiber optic code recognition system that solves the problem that current fiber optic code recognition devices have difficulty recognizing fiber optic codes placed at different distances.

[0004] The present invention also provides an optical fiber encoding identification method and a computer storage medium.

[0005] According to a first aspect of the present invention, an optical fiber encoded identification system includes:

[0006] The pulse light source module is used to output pulsed light waves of different wavelengths;

[0007] A pulse light source control module, electrically connected to the pulse light source module, is used to control the duration and intensity of the pulse light waves output by the pulse light source module.

[0008] The circulator includes a first port, a second port, and a third port. The first port is connected to the output of the pulse light source module, and the second port is used to connect to the fiber optic code.

[0009] An optoelectronic processing module, the input of which is connected to the third port, is used to convert optical wave signals into digital signals;

[0010] A signal conditioning module is electrically connected to the photoelectric processing module, and the signal conditioning module is used to adjust the digital signal output by the photoelectric processing module to achieve fiber optic code recognition at different distances;

[0011] The main control module is electrically connected to the pulse light source control module, the photoelectric processing module, and the signal conditioning module, respectively.

[0012] The fiber optic coding recognition system according to embodiments of the present invention has at least the following beneficial effects:

[0013] By utilizing a pulsed light source control module, the pulsed light source module can emit pulsed light waves corresponding to the target distance fiber optic code. These pulsed light waves possess the target duration, target intensity, and target wavelength. Therefore, when transmitted through a circulator to the target distance fiber optic code for reflection, the returned reflected light waves exhibit clear spectral characteristics. Furthermore, with further adjustment and optimization by the signal conditioning module, the photoelectric processing module can output a digital signal for identifying the target distance fiber optic code. Finally, the main control module analyzes the digital signal to achieve identification of the target distance fiber optic code. Therefore, the fiber optic code identification system of this embodiment achieves adaptive identification of fiber optic codes with varying distances, exhibits a high success rate in analysis by the main control module, and demonstrates excellent identification performance.

[0014] According to some embodiments of the present invention, the photoelectric processing module includes:

[0015] A photoelectric conversion unit, the input of which is connected to the third port, is used to convert optical wave signals into analog electrical signals;

[0016] The analog-to-digital converter has its input terminal electrically connected to the output terminal of the photoelectric conversion unit, and its output terminal electrically connected to the main control module. The analog-to-digital converter is used to convert analog electrical signals into digital signals.

[0017] According to some embodiments of the present invention, the signal conditioning module includes a voltage-adjustable power supply unit, the voltage-adjustable power supply unit having a first control input terminal and a first output terminal, the first control input terminal being electrically connected to the main control module, the first output terminal being electrically connected to the photoelectric conversion unit, and the voltage-adjustable power supply unit being used to adjust the operating sensitivity of the photoelectric conversion unit.

[0018] According to some embodiments of the present invention, the signal conditioning module further includes a signal amplification unit, the signal amplification unit having a second control input terminal, a first input terminal, and a second output terminal, the second control input terminal being electrically connected to the main control module, the first input terminal being electrically connected to the output terminal of the photoelectric conversion unit, and the second output terminal being electrically connected to the input terminal of the analog-to-digital conversion unit, the signal amplification unit being used to proportionally adjust the analog electrical signal output by the photoelectric conversion unit.

[0019] According to some embodiments of the present invention, the fiber optic coding identification system further includes a high-speed clock chip, which is electrically connected to the main control module and is used to adjust the sampling frequency of the analog-to-digital conversion unit.

[0020] The fiber optic code recognition method according to a second aspect of the present invention, applied to any fiber optic code recognition system as described in any of the first aspect of the present invention, includes the following steps:

[0021] The pulse light source control module controls the pulse light source module to output pulse light waves with target duration, target intensity and target wavelength to the circulator, and transmits them to the target distance fiber optic code through the circulator;

[0022] The circulator receives the reflected light wave from the target distance fiber encoding and transmits it to the photoelectric processing module;

[0023] The signal conditioning module adjusts the operation of the photoelectric processing module so that the photoelectric processing module processes the reflected light wave and outputs a digital signal to realize the fiber optic code recognition of the target distance;

[0024] The main control module receives and parses the digital signal to identify the fiber optic code of the target distance.

[0025] The fiber optic coding identification method according to embodiments of the present invention has at least the following beneficial effects:

[0026] By applying the fiber optic code recognition method of this invention to the fiber optic code recognition system of this invention, a pulse light source control module is used to emit pulse light waves corresponding to the target distance fiber optic code. These pulse light waves possess target duration, target intensity, and target wavelength. Therefore, when the pulse light waves are transmitted to the target distance fiber optic code via a circulator and reflected, the returned reflected light waves exhibit clear spectral characteristics. Furthermore, with further adjustment and optimization by the signal conditioning module, the photoelectric processing module can output a digital signal for identifying the target distance fiber optic code. Finally, the main control module analyzes the digital signal to achieve the identification of the target distance fiber optic code. Therefore, the fiber optic code recognition method of this invention achieves adaptive recognition of fiber optic codes with different distances, has a high success rate in analysis by the main control module, and exhibits excellent recognition performance.

[0027] According to some embodiments of the present invention, the photoelectric processing module includes a photoelectric conversion unit and an analog-to-digital conversion unit; the input terminal of the photoelectric conversion unit is connected to the third port, and the photoelectric conversion unit is used to convert the optical wave signal into an analog electrical signal; the input terminal of the analog-to-digital conversion unit is electrically connected to the output terminal of the photoelectric conversion unit, and the output terminal is electrically connected to the main control module, and the analog-to-digital conversion unit is used to convert the analog electrical signal into a digital signal;

[0028] The signal conditioning module adjusts the operation of the photoelectric processing module so that the photoelectric processing module processes the reflected light wave and outputs a digital signal for fiber optic distance encoding identification of the target, including the following steps:

[0029] Under the regulation of the signal conditioning module, the photoelectric conversion unit receives the reflected light wave and converts the reflected light wave into an analog electrical signal to realize the fiber optic coding identification of the target distance;

[0030] Under the regulation of the signal conditioning module, the analog-to-digital conversion unit receives the analog electrical signal and converts the analog electrical signal into a digital signal to realize the fiber optic coding identification of the target distance.

[0031] According to some embodiments of the present invention, the signal conditioning module includes a voltage-adjustable power supply unit, the voltage-adjustable power supply unit having a first control input terminal and a first output terminal, the first control input terminal being electrically connected to the main control module, the first output terminal being electrically connected to the photoelectric conversion unit, and the voltage-adjustable power supply unit being used to adjust the operating sensitivity of the photoelectric conversion unit;

[0032] Under the adjustment of the signal conditioning module, the photoelectric conversion unit receives the reflected light wave and converts the reflected light wave into an analog electrical signal for fiber optic distance encoding identification of the target, including the following steps:

[0033] The voltage-adjustable power supply unit adjusts the working sensitivity of the photoelectric conversion unit so that the photoelectric conversion unit converts the reflected light wave into an analog electrical signal that enables fiber optic encoding identification of the target distance.

[0034] According to some embodiments of the present invention, the signal conditioning module further includes a signal amplification unit, the signal amplification unit having a second control input terminal, a first input terminal, and a second output terminal, the second control input terminal being electrically connected to the main control module, the first input terminal being electrically connected to the output terminal of the photoelectric conversion unit, and the second output terminal being electrically connected to the input terminal of the analog-to-digital conversion unit, the signal amplification unit being used to proportionally adjust the analog electrical signal output by the photoelectric conversion unit;

[0035] Under the adjustment of the signal conditioning module, the analog-to-digital conversion unit receives the analog electrical signal and converts the analog electrical signal into a digital signal to realize the fiber optic coding identification of the target distance, and further includes the following steps:

[0036] The signal amplification unit adjusts the ratio of the analog electrical signal output by the photoelectric conversion unit so that the analog-to-digital conversion unit converts the analog electrical signal into a digital signal that enables fiber optic encoding identification of the target distance.

[0037] According to a third aspect of the present invention, a computer-readable storage medium stores computer-executable instructions for performing the fiber optic coding identification method as described in any of the second aspect embodiments above.

[0038] It is understood that the beneficial effects of the fourth aspect mentioned above compared with the related technologies are the same as those of the first or second aspects mentioned above. Please refer to the relevant descriptions in the first or second aspects mentioned above, which will not be repeated here.

[0039] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0040] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 This is a schematic diagram of the structure of fiber optic encoding according to an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the spectral characteristics of fiber-coded reflected light waves at different distances according to an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of the structure of an optical fiber coding recognition system according to an embodiment of the present invention;

[0044] Figure 4 This is a timing diagram of a high-speed clock chip and analog-to-digital conversion unit according to an embodiment of the present invention;

[0045] Figure 5 This is a flowchart of an embodiment of the fiber optic coding recognition method of the present invention.

[0046] Figure label:

[0047] Pulse light source module 100;

[0048] Pulse light source control module 200;

[0049] Circulator 300;

[0050] Main control module 400;

[0051] Photoelectric conversion unit 510; Analog-to-digital conversion unit 520;

[0052] Adjustable power supply unit 610; signal amplification unit 620;

[0053] High-speed clock chip 700. Detailed Implementation

[0054] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0055] In the description of this invention, the use of terms such as "first," "second," etc., is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0056] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0058] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0059] It should be noted first that the reference Figure 1Fiber optic coding consists of multiple reflective and transmissive markers, which can be distinguished by the different wavelengths of reflected and transmitted light waves or by different marker spacing, thus achieving a unique characteristic of the fiber optic code under light waves. For cost considerations, it is preferable to use markers with different spacing to form the fiber optic code. Specifically, the spacing between adjacent markers is L0×K, where L0 is the baseline spacing and K is an integer. The reflective or transmissive markers of the fiber optic code can sample various different components, mainly including fiber gratings, reflective films (sheets), transmissive films (sheets), and silicon baseline gratings. Because existing reflective and transmissive films have large wavelength widths, they are not suitable for current applications. Silicon baseline gratings can be directly etched on the silicon substrate of the beam splitter, but the silicon substrate requires a small size, resulting in a very small gap between the silicon baseline grating and the beam splitter. This requires high precision in both the light source pulse and the acquisition space, and the cost is also very high. Fiber gratings, including reflective fiber gratings, transmissive fiber gratings, and phase fiber gratings, are directly etched on optical fibers and can be directly connected to optical fiber products. The cost is relatively low. Therefore, fiber gratings are preferred as the fiber encoding in this embodiment of the invention.

[0060] Further, refer to Figure 2 Taking the example shown in the figure, three fiber codes are sequentially set on the fiber. They can be regarded as fiber codes that are closer, fiber codes at a suitable distance, and fiber codes that are farther away. Therefore, when the three fiber codes reflect the identification light waves in sequence, the spectral characteristics of their reflected light waves are as shown in the figure. That is, for the fiber code that is closer, the intensity of the reflected light waves from each grating of the fiber code is too high in the spectrum, making it impossible to distinguish them for analysis; while the intensity of the reflected light waves from the fiber code that is farther away is too weak, and the energy of the reflected light waves from some gratings of the fiber code is missing in the spectrum, so some gratings of the fiber code cannot be identified; only the fiber code that is set at a suitable distance has obvious spectral characteristics of its reflected light waves, and can be successfully analyzed.

[0061] It should be further noted that continued reference is necessary. Figure 2 Because each grating in an optical fiber code is different, the spectral characteristics of its reflected light waves exhibit peaks or troughs with varying amplitudes. A complete waveform represents one grating; therefore, by finding the peaks, the grating can be identified, thus enabling the identification of the entire optical fiber code. Normally, the amplitude of the reflected light wave from a grating is twice the amplitude of the pulsed light wave. When the pulsed light wave intensity is too high, the amplitude of the reflected light wave from each grating is proportionally amplified; similarly, when the pulsed light wave intensity is too low, the amplitude of the reflected light wave from each grating is proportionally reduced. This leads to the problem that optical fiber codes at closer and farther locations may have different received pulsed light wave intensities, resulting in indistinct spectral characteristics of the reflected light waves, making identification difficult.

[0062] To address the above problems, this invention proposes an optical fiber encoding recognition system.

[0063] Reference Figure 3 As shown, the fiber optic coding identification system provided in this embodiment of the invention includes: a pulse light source module 100, a pulse light source control module 200, a circulator 300, a photoelectric processing module, a signal conditioning module, and a main control module 400. The pulse light source module 100 is used to output pulsed light waves of different wavelengths; the pulse light source control module 200 is electrically connected to the pulse light source module 100 and is used to control the duration and intensity of the pulsed light waves output by the pulse light source module 100; the circulator 300 includes a first port, a second port, and a third port. The first port is connected to the output end of the pulse light source module 100, and the second port is used to connect to the fiber optic coding; the input end of the photoelectric processing module is connected to the third port, and the photoelectric processing module is used to convert the light wave signal into a digital signal; the signal conditioning module is electrically connected to the photoelectric processing module, and the signal conditioning module is used to adjust the digital signal output by the photoelectric processing module to achieve fiber optic coding identification at different distances; the main control module 400 is electrically connected to the pulse light source control module 200, the photoelectric processing module, and the signal conditioning module, respectively.

[0064] Specifically, refer to Figure 3 As shown, in the fiber optic code recognition system of this embodiment, under the control of the main control module 400, the pulse light source control module 200 is first operated to cause the pulse light source module 100 to output pulse light waves with target duration, target intensity, and target wavelength. These pulses are then transmitted through the circulator 300 to the external target distance fiber optic code. The target distance fiber optic code reflects the pulse light wave (i.e., the recognition light wave) and transmits the reflected light wave back to the circulator 300, which is then further transmitted to the photoelectric processing module. By operating the signal adjustment module, the operation of the photoelectric processing module is adjusted, so that after processing the reflected light wave, the photoelectric processing module can output a digital signal that enables target distance fiber optic code recognition. This digital signal is transmitted to the main control module 400, allowing the main control module 400 to parse the digital signal and thus recognize the target distance fiber optic code.

[0065] Understandably, by utilizing the pulsed light source control module 200, the intensity and duration of the identification light wave can be adjusted. Therefore, for nearby fiber optic codes, a weaker energy identification light wave can be used for a shorter reflection duration. With the collaborative processing of the signal conditioning module, the spectral characteristics of the reflected light wave become distinguishable. Similarly, for distant fiber optic codes, a stronger energy identification light wave can be used for a longer reflection duration. With the collaborative processing of the signal conditioning module, the spectral characteristics of the reflected light wave also become distinguishable. Therefore, the main control module 400 can successfully resolve the reflected light wave from fiber optic codes at any distance, achieving the distinguishable identification of fiber optic codes at different distances.

[0066] In this embodiment, by utilizing the pulse light source control module 200, the pulse light source module 100 can emit pulse light waves corresponding to the target distance fiber optic code. These pulse light waves possess the target duration, target intensity, and target wavelength. Therefore, when transmitted through the circulator 300 to the target distance fiber optic code for reflection, the returned reflected light waves exhibit clear spectral characteristics. Furthermore, with further adjustment and optimization by the signal conditioning module, the photoelectric processing module can output a digital signal for identifying the target distance fiber optic code. Finally, the main control module 400 analyzes the digital signal to achieve identification of the target distance fiber optic code. Therefore, the fiber optic code identification system of this embodiment achieves adaptive identification of fiber optic codes with different distance settings, and the main control module 400 has a high analysis success rate and excellent identification performance.

[0067] In some embodiments, such as Figure 3 As shown, the photoelectric processing module includes: a photoelectric conversion unit 510 and an analog-to-digital conversion unit 520. The input terminal of the photoelectric conversion unit 510 is connected to a third port, and the photoelectric conversion unit 510 is used to convert optical wave signals into analog electrical signals. The input terminal of the analog-to-digital conversion unit 520 is electrically connected to the output terminal of the photoelectric conversion unit 510, and the output terminal is electrically connected to the main control module 400. The analog-to-digital conversion unit 520 is used to convert analog electrical signals into digital signals.

[0068] Specifically, refer to Figure 3 Understandably, the reflected light wave is first processed by the photoelectric conversion unit 510. Under the adjustment and optimization of the signal conditioning module, the reflected light wave can be converted into an analog electrical signal for target distance fiber optic code identification. Then, the analog-to-digital conversion unit 520 converts the analog electrical signal into a digital signal for target distance fiber optic code identification, enabling the main control module 400 to analyze the digital signal and achieve identification of the target distance fiber optic code. In some embodiments, the photoelectric conversion unit 510 can use a PIN photodiode or an avalanche photodiode (APD) for photoelectric conversion. The core processor of the main control module 400 can be a microcontroller, DSP, or ARM; specifically, an STM32 series processor can be used.

[0069] In some embodiments, such as Figure 3 As shown, the signal conditioning module includes a voltage-adjustable power supply unit 610, which has a first control input terminal and a first output terminal. The first control input terminal is electrically connected to the main control module 400, and the first output terminal is electrically connected to the photoelectric conversion unit 510. The voltage-adjustable power supply unit 610 is used to adjust the working sensitivity of the photoelectric conversion unit 510.

[0070] Specifically, refer to Figure 3 Under the control of the main control module 400, the adjustable power supply unit 610 provides different power supply voltages to the photoelectric conversion unit 510. Without exceeding a threshold, the higher the power supply voltage of the photoelectric conversion unit 510, the higher its photoelectric conversion sensitivity. That is, for the same light intensity, the higher the power supply voltage, the stronger the signal output by the photoelectric conversion; similarly, the lower the power supply voltage, the weaker the signal output by the photoelectric conversion. Therefore, by using the adjustable power supply unit 610 to adjust the sensitivity of the photoelectric conversion unit 510 to adapt to reflected light waves transmitted from different distances, the photoelectric conversion unit 510 can output analog electrical signals that enable fiber optic encoding recognition at different distances. In some embodiments, the adjustable power supply unit 610 can use a common adjustable voltage regulator circuit to achieve the function of providing different power supply voltages.

[0071] In some embodiments, such as Figure 3 As shown, the signal conditioning module also includes a signal amplification unit 620. The signal amplification unit 620 has a second control input terminal, a first input terminal, and a second output terminal. The second control input terminal is electrically connected to the main control module 400, the first input terminal is electrically connected to the output terminal of the photoelectric conversion unit 510, and the second output terminal is electrically connected to the input terminal of the analog-to-digital conversion unit 520. The signal amplification unit 620 is used to proportionally adjust the analog electrical signal output by the photoelectric conversion unit 510.

[0072] Specifically, refer to Figure 3 Under the control of the main control module 400, the signal amplification unit 620 can proportionally adjust the analog electrical signal output by the photoelectric conversion unit 510. Specifically, it increases the proportion of relatively weak analog electrical signals and decreases the proportion of relatively strong analog electrical signals, so that the analog-to-digital conversion unit 520 can collect analog electrical signals with appropriate proportions of energy for processing, thereby outputting digital signals that enable fiber optic encoding recognition at different distances. In some embodiments, the signal amplification unit 620 can use a common differential amplifier circuit to achieve the signal proportional adjustment.

[0073] In some embodiments, such as Figure 3 As shown, the fiber optic coding recognition system also includes a high-speed clock chip 700, which is electrically connected to the main control module 400. The high-speed clock chip 700 is used to adjust the sampling frequency of the analog-to-digital conversion unit 520.

[0074] Specifically, refer to Figure 3 Understandably, the analog-to-digital converter 520 typically uses a high-speed AD acquisition chip, which has a high sampling frequency and short sampling time. However, this sampling method increases its cost exponentially. (Continue to refer to...) Figure 4By utilizing a high-speed clock chip 700 and employing a multiple sampling method, inserting a timing cycle of the high-speed clock chip 700 between the multiple sampling intervals, the sampling accuracy can be made consistent with the timing of the high-speed clock chip 700. In other words, the high-speed clock chip 700 is used to simulate high-speed sampling. The finally sampled signal data is then sorted and reassembled according to the corresponding timing intervals, thus achieving high-frequency sampling through multiple low-frequency samplings. Furthermore, the high-speed clock chip 700 is inexpensive, thereby reducing costs.

[0075] Additionally, refer to Figure 5 This invention also provides a fiber optic code recognition method, applied to any fiber optic code recognition system as described in this invention, comprising the following steps:

[0076] The pulse light source control module 200 controls the pulse light source module 100 to output pulse light waves with target duration, target intensity and target wavelength to the circulator 300, and transmits them to the target distance fiber optic code through the circulator 300;

[0077] The circulator 300 receives the reflected light wave from the target distance fiber encoding and transmits it to the photoelectric processing module;

[0078] The signal conditioning module regulates the operation of the photoelectric processing module so that the photoelectric processing module processes the reflected light waves and outputs a digital signal for fiber optic encoding identification of the target distance;

[0079] The main control module 400 receives and analyzes digital signals to identify the fiber optic code of the target distance.

[0080] Specifically, refer to Figure 5 This is a flowchart of the fiber optic code recognition method according to an embodiment of the present invention. It should be noted that the fiber optic code recognition system of this application is used to implement the above-described fiber optic code recognition method. The fiber optic code recognition method of this application corresponds to the aforementioned fiber optic code recognition system. For specific processing procedures, please refer to the aforementioned fiber optic code recognition system; further details will not be repeated here.

[0081] It is understood that by applying the fiber optic code recognition method of this embodiment to the fiber optic code recognition system of this embodiment, the pulse light source control module 200 is used to enable the pulse light source module 100 to emit pulse light waves corresponding to the target distance fiber optic code. The pulse light waves possess the target duration, target intensity, and target wavelength. Therefore, when the pulse light waves are transmitted to the target distance fiber optic code for reflection via the circulator 300, the returned reflected light waves exhibit clearer spectral characteristics. Furthermore, with further adjustment and optimization by the signal conditioning module, the photoelectric processing module can output a digital signal for identifying the target distance fiber optic code. Finally, the main control module 400 analyzes the digital signal to achieve the identification of the target distance fiber optic code. Therefore, the fiber optic code recognition method of this embodiment achieves adaptive recognition of fiber optic codes with different distances, and the main control module 400 has a high success rate in analysis, demonstrating excellent recognition performance.

[0082] In some embodiments, such as Figure 3 As shown, the photoelectric processing module includes a photoelectric conversion unit 510 and an analog-to-digital conversion unit 520; the input terminal of the photoelectric conversion unit 510 is connected to a third port, and the photoelectric conversion unit 510 is used to convert light wave signals into analog electrical signals; the input terminal of the analog-to-digital conversion unit 520 is electrically connected to the output terminal of the photoelectric conversion unit 510, and the output terminal is electrically connected to the main control module 400, and the analog-to-digital conversion unit 520 is used to convert analog electrical signals into digital signals;

[0083] The signal conditioning module regulates the operation of the photoelectric processing module so that the photoelectric processing module processes the reflected light wave and outputs a digital signal for fiber optic distance encoding identification of the target, including the following steps:

[0084] Under the regulation of the signal conditioning module, the photoelectric conversion unit 510 receives the reflected light wave and converts the reflected light wave into an analog electrical signal to realize the fiber optic coding identification of the target distance;

[0085] Under the regulation of the signal conditioning module, the analog-to-digital conversion unit 520 receives the analog electrical signal and converts it into a digital signal to achieve fiber optic encoding identification of the target distance.

[0086] Specifically, the above-described method of this embodiment of the present invention corresponds to the photoelectric conversion unit 510 and the analog-to-digital conversion unit 520 of this embodiment of the present invention, and will not be explained again here.

[0087] In some embodiments, such as Figure 3As shown, the signal conditioning module includes a voltage adjustable power supply unit 610, which has a first control input terminal and a first output terminal. The first control input terminal is electrically connected to the main control module 400, and the first output terminal is electrically connected to the photoelectric conversion unit 510. The voltage adjustable power supply unit 610 is used to adjust the working sensitivity of the photoelectric conversion unit 510.

[0088] Under the regulation of the signal conditioning module, the photoelectric conversion unit 510 receives the reflected light wave and converts it into an analog electrical signal for fiber optic encoding identification of the target distance, including the following steps:

[0089] The voltage-adjustable power supply unit 610 adjusts the working sensitivity of the photoelectric conversion unit 510 so that the photoelectric conversion unit 510 converts the reflected light wave into an analog electrical signal for fiber optic coding identification of the target distance.

[0090] Specifically, the method described in this embodiment of the present invention corresponds to the voltage-adjustable power supply unit 610 in this embodiment of the present invention, and will not be explained again here.

[0091] In some embodiments, such as Figure 3 As shown, the signal conditioning module also includes a signal amplification unit 620. The signal amplification unit 620 has a second control input terminal, a first input terminal, and a second output terminal. The second control input terminal is electrically connected to the main control module 400, the first input terminal is electrically connected to the output terminal of the photoelectric conversion unit 510, and the second output terminal is electrically connected to the input terminal of the analog-to-digital conversion unit 520. The signal amplification unit 620 is used to proportionally adjust the analog electrical signal output by the photoelectric conversion unit 510.

[0092] Under the regulation of the signal conditioning module, the analog-to-digital conversion unit 520 receives the analog electrical signal and converts it into a digital signal for fiber optic coding identification of the target distance. The process also includes the following steps:

[0093] The signal amplification unit 620 adjusts the ratio of the analog electrical signal output by the photoelectric conversion unit 510 so that the analog-to-digital conversion unit 520 converts the analog electrical signal into a digital signal for optical fiber encoding identification of the target distance.

[0094] Specifically, the method described in this embodiment of the present invention corresponds to the signal amplification unit 620 in this embodiment of the present invention, and will not be explained again here.

[0095] Furthermore, embodiments of the present invention also provide a computer-readable storage medium storing computer-executable instructions. These instructions are executed by one or more control processors, causing the one or more control processors to perform the fiber optic coding identification method described in the above method embodiments, for example, performing the above-described... Figure 5The method in the middle.

[0096] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0097] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

[0098] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0099] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A fiber optic coding recognition system, characterized in that, include: The pulse light source module is used to output pulsed light waves of different wavelengths; A pulse light source control module, electrically connected to the pulse light source module, is used to control the duration and intensity of the pulse light waves output by the pulse light source module. By utilizing the pulse light source control module, the pulse light source module can emit pulse light waves corresponding to the fiber optic code of the target distance, and the pulse light waves have the target duration, target intensity, and target wavelength. The circulator includes a first port, a second port, and a third port. The first port is connected to the output of the pulse light source module, and the second port is used to connect to the fiber optic code. An optoelectronic processing module, the input of which is connected to the third port, is used to convert optical wave signals into digital signals; A signal conditioning module is electrically connected to the photoelectric processing module, and the signal conditioning module is used to adjust the digital signal output by the photoelectric processing module to achieve fiber optic code recognition at different distances; The main control module is electrically connected to the pulse light source control module, the photoelectric processing module, and the signal conditioning module, respectively. The photoelectric processing module includes: A photoelectric conversion unit, the input of which is connected to the third port, is used to convert optical wave signals into analog electrical signals; An analog-to-digital converter (ADC) is provided, with its input terminal electrically connected to the output terminal of the photoelectric conversion unit and its output terminal electrically connected to the main control module. The ADC is used to convert analog electrical signals into digital signals. The signal conditioning module includes a voltage-adjustable power supply unit, which has a first control input terminal and a first output terminal. The first control input terminal is electrically connected to the main control module, and the first output terminal is electrically connected to the photoelectric conversion unit. The voltage-adjustable power supply unit is used to adjust the working sensitivity of the photoelectric conversion unit. The fiber optic coding and recognition system also includes a high-speed clock chip, which is electrically connected to the main control module and is used to adjust the sampling frequency of the analog-to-digital conversion unit.

2. The fiber optic coding and recognition system according to claim 1, characterized in that, The signal conditioning module further includes a signal amplification unit, which has a second control input terminal, a first input terminal, and a second output terminal. The second control input terminal is electrically connected to the main control module, the first input terminal is electrically connected to the output terminal of the photoelectric conversion unit, and the second output terminal is electrically connected to the input terminal of the analog-to-digital conversion unit. The signal amplification unit is used to proportionally adjust the analog electrical signal output by the photoelectric conversion unit.

3. A fiber optic code recognition method, applied to the fiber optic code recognition system as described in any one of claims 1 to 2, characterized in that, Includes the following steps: The pulse light source control module controls the pulse light source module to output pulse light waves with target duration, target intensity and target wavelength to the circulator, and transmits them to the target distance fiber optic code through the circulator; The circulator receives the reflected light wave from the target distance fiber encoding and transmits it to the photoelectric processing module; The signal conditioning module adjusts the operation of the photoelectric processing module so that the photoelectric processing module processes the reflected light wave and outputs a digital signal to realize the fiber optic code recognition of the target distance; The main control module receives and parses the digital signal to identify the fiber optic code of the target distance.

4. The fiber optic coding recognition method according to claim 3, characterized in that, The signal conditioning module adjusts the operation of the photoelectric processing module so that the photoelectric processing module processes the reflected light wave and outputs a digital signal for fiber optic distance identification of the target, including the following steps: Under the regulation of the signal conditioning module, the photoelectric conversion unit receives the reflected light wave and converts the reflected light wave into an analog electrical signal to realize the fiber optic coding identification of the target distance; Under the regulation of the signal conditioning module, the analog-to-digital conversion unit receives the analog electrical signal and converts the analog electrical signal into a digital signal to realize the fiber optic coding identification of the target distance.

5. The fiber optic coding recognition method according to claim 4, characterized in that, Under the adjustment of the signal conditioning module, the photoelectric conversion unit receives the reflected light wave and converts the reflected light wave into an analog electrical signal for fiber optic distance coding identification of the target, and further includes the following steps: The voltage-adjustable power supply unit adjusts the operating sensitivity of the photoelectric conversion unit so that the photoelectric conversion unit converts the reflected light wave into an analog electrical signal that enables fiber optic encoding identification of the target distance.

6. The fiber optic coding recognition method according to claim 5, characterized in that, The signal conditioning module further includes a signal amplification unit, which has a second control input terminal, a first input terminal, and a second output terminal. The second control input terminal is electrically connected to the main control module, the first input terminal is electrically connected to the output terminal of the photoelectric conversion unit, and the second output terminal is electrically connected to the input terminal of the analog-to-digital conversion unit. The signal amplification unit is used to proportionally adjust the analog electrical signal output by the photoelectric conversion unit. Under the adjustment of the signal conditioning module, the analog-to-digital conversion unit receives the analog electrical signal and converts the analog electrical signal into a digital signal to realize the fiber optic code identification of the target distance, and further includes the following steps: The signal amplification unit adjusts the ratio of the analog electrical signal output by the photoelectric conversion unit so that the analog-to-digital conversion unit converts the analog electrical signal into a digital signal that enables fiber optic encoding identification of the target distance.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to perform the fiber optic coding identification method as described in any one of claims 3 to 6.

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