Optical fiber encoding monitoring and communication integrated system and control method

Abstract

This invention discloses an integrated system and control method for fiber optic coding monitoring and communication. The system includes: a monitoring station comprising a first circulator, a first beam splitter, a first control module, and broadband light sources, a first SOA optical switch, a second SOA optical switch, a spectral module, and a first communication optical wave receiving unit, all connected to the first control module; and auxiliary equipment comprising a second circulator, a second beam splitter, a second communication optical wave receiving unit, a second control module, a pulsed light source, an optical channel switching module, and fiber optic coding. A transmission optical fiber connects the first and second beam splitters. The monitoring station sends monitoring optical waves to the auxiliary equipment, receives fiber optic coded optical waves reflected back through the fiber optic coding, and sends communication optical waves to the auxiliary equipment to switch the optical channels of the optical channel switching module. This enables unique identification of other devices while monitoring the monitored fiber optic cable and using the monitored fiber optic cable to achieve communication between the monitoring station and different other devices.

Description

Technical Field

[0001] This invention relates to the field of optical communication technology, and in particular to an integrated system and control method for optical fiber coding monitoring and communication. Background Technology

[0002] In existing intelligent fiber optic network monitoring and management systems, the monitoring station communicates with other devices via an external TCP / IP communication system, which presents several problems: 1. Reliance on network communication requires the addition of corresponding communication equipment and devices, increasing system costs, installation costs, and maintenance costs; 2. External communication delays will slow down system operation; 3. If external communication is interrupted, other devices will fail. 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 an integrated system for fiber optic coding monitoring and communication, which can achieve unique identification of other devices while monitoring the monitored fiber optic cable and using the monitored fiber optic cable to achieve communication between the monitoring station and different other devices.

[0004] The present invention also provides an integrated control method for fiber optic coding monitoring and communication applied to the above-mentioned integrated fiber optic coding monitoring and communication system.

[0005] According to a first aspect of the present invention, an integrated fiber optic coding monitoring and communication system includes:

[0006] The monitoring station includes a first circulator, a first beam splitter, a first control module, and a broadband light source, a first SOA optical switch, a second SOA optical switch, a spectral module, and a first communication optical wave receiving unit, all connected to the first control module. The first circulator has a first port, a second port, and a third port. The first beam splitter has a first beam splitting end, a second beam splitting end, and a first optical transmission end connected to one end of a transmission optical fiber. The first SOA optical switch is connected between the broadband light source and the first port. The second SOA optical switch is connected between the spectral module and the second port. The third port is connected to the first beam splitting end. The first communication optical wave receiving unit is connected between the first control module and the second beam splitting end.

[0007] The auxiliary equipment includes a second circulator, a second beam splitter, a second communication optical wave receiver, a second control module, a pulsed light source, an optical channel switching module, and an optical fiber encoder. The second circulator has a fourth port, a fifth port, and a sixth port. The second beam splitter has a third beam splitter, a fourth beam splitter, and a second optical transmission end connected to the other end of the transmission optical fiber. The optical channel switching module has a control input end, an encoding input end, and multiple optical channels. The pulsed light source is connected between the fourth port and the second control module. The second communication optical wave receiver is connected between the fifth port and the second control module. The sixth port is connected to the third beam splitter. The optical fiber encoder is connected between the fourth beam splitter and the encoding input end.

[0008] The fiber optic coding monitoring and communication integrated system according to embodiments of the present invention has at least the following beneficial effects:

[0009] Monitoring light waves are emitted from a broadband light source at the monitoring station and transmitted to auxiliary equipment via optical fiber. A spectral module receives and analyzes the fiber-coded light waves reflected from the fiber, thus monitoring the transmission fiber. Communication light waves are also emitted from the broadband light source and transmitted to auxiliary equipment via optical fiber. A second control module switches the optical channel of the switching module based on the communication light waves, enabling communication between the monitoring station and other devices corresponding to the optical channel. This embodiment of the fiber-coded monitoring and communication integrated system enables unique identification of other devices while simultaneously monitoring the monitored optical fiber and using it to achieve communication between the monitoring station and various other devices.

[0010] According to some embodiments of the present invention, the center wavelength of the pulsed light wave emitted by the pulsed light source is orthogonal to the center wavelength of the pulsed light wave emitted by the broadband light source.

[0011] According to some embodiments of the present invention, the first communication optical wave receiving unit includes:

[0012] The first photoelectric conversion unit has one end connected to the second beam splitter;

[0013] The first analog-to-digital conversion unit has one end connected to the other end of the first photoelectric conversion unit and the other end connected to the first control module.

[0014] According to some embodiments of the present invention, the second communication optical wave receiving unit includes:

[0015] The second photoelectric conversion unit has one end connected to the fifth port;

[0016] The second analog-to-digital conversion unit has one end connected to the other end of the second photoelectric conversion unit and the other end connected to the second control module.

[0017] The fiber optic coding monitoring and communication integrated control method according to a second aspect embodiment of the present invention is applied to the fiber optic coding monitoring and communication integrated system of the first aspect embodiment described above. The control method includes the following steps:

[0018] Monitoring light waves are emitted by a broadband light source and transmitted to auxiliary equipment via optical fiber.

[0019] The optical fiber is monitored by receiving the optical fiber encoded light wave reflected back by the optical fiber encoding through the spectral module and analyzing the optical fiber encoded light wave.

[0020] The broadband light source sends communication light waves, which are transmitted to the auxiliary device through the transmission optical fiber; both the monitoring light wave and the communication light wave are generated by the broadband light source under the control of the first control module, and the pulse widths of the monitoring light wave and the communication light wave are different.

[0021] The second communication optical wave receiving unit receives the communication optical wave, and the second control module switches the optical channel of the optical channel switching module according to the communication optical wave, so that the monitoring station can communicate with other devices corresponding to the optical channel.

[0022] The fiber optic coding monitoring and communication integrated control method according to embodiments of the present invention has at least the following beneficial effects:

[0023] The fiber optic coding monitoring and communication integrated system applied in the first aspect embodiment above uses a broadband light source to transmit monitoring light waves through a transmission optical fiber to auxiliary equipment. A spectral module receives and analyzes the fiber optic coding light waves reflected back from the fiber optic cable, achieving the purpose of monitoring the transmission optical fiber. A communication light wave is also transmitted from the broadband light source to the auxiliary equipment through the transmission optical fiber. A second control module switches the optical channel of the optical channel switching module according to the communication light wave, enabling the monitoring station to communicate with other devices corresponding to the optical channel. This fiber optic coding monitoring and communication integrated control method of the present invention can achieve unique identification of other devices while monitoring the monitored optical fiber and using the monitored optical fiber to achieve communication between the monitoring station and different other devices.

[0024] According to some embodiments of the present invention, the pulse width of the communication optical wave is smaller than the pulse width of the fiber optic coded optical wave.

[0025] According to some embodiments of the present invention, the step of transmitting communication light waves from the broadband light source and transmitting them to the auxiliary device through the transmission optical fiber includes the following steps:

[0026] A preset switching control pulse sequence is generated, and an integration time t is waited for. The switching control pulse sequence is used to characterize the control command for switching the optical channel.

[0027] Generate an optical fiber coded pulse sequence, which is used to characterize the optical fiber coded information of the other devices to be switched;

[0028] The constraint formula for the integration time t is: integration time t = ((L*h) / v) + (12*k*r1);

[0029] In the formula, L is the length of the transmission optical fiber, h is the group refractive index, v is the speed of light, k is the channel number of the optical channel to be switched, and r1 is the pulse width of the communication optical wave.

[0030] According to some embodiments of the present invention, the step of receiving the communication light wave through the second communication light wave receiving unit and switching the optical channel of the optical channel switching module according to the communication light wave includes the following steps:

[0031] The second communication optical wave receiving unit receives the communication optical wave, and the second control module identifies the bandwidth of the communication optical wave;

[0032] Data within a preset communication bandwidth range in the communication light wave is retained, while data exceeding the communication bandwidth range in the communication light wave is discarded.

[0033] The second control module identifies the switching control pulse sequence, the integration time t, and the fiber optic encoded pulse sequence, and switches to the corresponding optical channel according to the value of k in the integration time t.

[0034] According to some embodiments of the present invention, after the auxiliary device is powered on, the following steps are performed:

[0035] Multiple registered light pulses are sent to the monitoring station by a pulsed light source. These multiple registered light pulses are used to characterize the fiber optic coding information of different other devices.

[0036] According to some embodiments of the present invention, the process of sending the monitoring light wave to receiving the fiber-coded light wave reflected back by the fiber code includes the following steps:

[0037] The broadband light source and the first SOA optical switch are activated, and the monitoring light wave is generated by the broadband light source and output through the first SOA optical switch.

[0038] The system receives the fiber-coded light wave reflected back by the fiber code and activates the second SOA optical switch to output the fiber-coded light wave to the spectral module; wherein the activation time difference between the first SOA optical switch and the second SOA optical switch is used to calculate the distance between the monitoring station and the auxiliary equipment.

[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 an integrated fiber optic coding monitoring and communication system according to an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of a monitoring light wave pulse according to an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of a communication optical wave pulse according to an embodiment of the present invention;

[0044] Figure 4 This is a flowchart of an embodiment of the fiber optic coding monitoring and communication integrated control method of the present invention.

[0045] Figure label:

[0046] First circulator 110, first beam splitter 120, first control module 130, broadband light source 140, first communication optical wave receiver 150, first photoelectric conversion unit 151, first analog-to-digital conversion unit 152, first SOA optical switch 160, second SOA optical switch 170, and spectral module 180.

[0047] 200mm fiber optic cable for transmission;

[0048] The system includes a second circulator 310, a second beam splitter 320, a second control module 330, a pulse light source 340, a second communication optical wave receiving unit 350, a second photoelectric conversion unit 351, a second analog-to-digital conversion unit 352, an optical channel switching module 360, and an optical fiber encoder 370. Detailed Implementation

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] This invention provides an integrated fiber optic coding monitoring and communication system. A broadband light source 140 at the monitoring station transmits monitoring light waves via a transmission fiber optic cable 200 to auxiliary equipment. A spectral module 180 receives and analyzes the fiber optic coded light waves reflected from the fiber optic code 370, achieving the purpose of monitoring the transmission fiber optic cable 200. Communication light waves are also transmitted from the broadband light source 140 to the auxiliary equipment via the transmission fiber optic cable 200. A second control module switches the optical channel of the optical channel switching module 360 ​​according to the communication light waves, enabling communication between the monitoring station and other devices corresponding to the optical channel. This integrated fiber optic coding monitoring and communication system can achieve unique identification of other devices while monitoring the monitored fiber optic cable and using the monitored fiber optic cable to achieve communication between the monitoring station and different other devices.

[0054] The following will combine Figures 1 to 4 The fiber optic coding monitoring and communication integrated system of the present invention will be clearly and completely described below. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0055] According to a first aspect of the present invention, an integrated fiber optic coding monitoring and communication system includes a monitoring station and auxiliary equipment.

[0056] The monitoring station includes a first circulator 110, a first beam splitter 120, a first control module 130, a broadband light source 140, a first SOA optical switch 160, a second SOA optical switch 170, a spectrum module 180, and a first communication optical wave receiver 150, all connected to the first control module 130. The first circulator 110 has a first port, a second port, and a third port. The first beam splitter 120 has a first beam splitting end, a second beam splitting end, and a first optical transmission end connected to one end of the transmission optical fiber 200. The first SOA optical switch 160 is connected between the broadband light source 140 and the first port. The second SOA optical switch 170 is connected between the spectrum module 180 and the second port. The third port is connected to the first beam splitting end. The first communication optical wave receiver 150 is connected between the first control module 130 and the second beam splitting end.

[0057] The auxiliary equipment includes a second circulator 310, a second beam splitter 320, a second communication optical wave receiver 350, a second control module 330, a pulse light source 340, an optical channel switching module 360, and an optical fiber encoder 370. The second circulator 310 has a fourth port, a fifth port, and a sixth port. The second beam splitter 320 has a third beam splitter end, a fourth beam splitter end, and a second optical transmission end connected to the other end of the transmission optical fiber 200. The optical channel switching module 360 ​​has a control input end, an encoding input end, and multiple optical channels. The pulse light source 340 is connected between the fourth port and the second control module 330. The second communication optical wave receiver 350 is connected between the fifth port and the second control module 330. The sixth port is connected to the third beam splitter end. The optical fiber encoder 370 is connected between the fourth beam splitter end and the encoding input end.

[0058] The first control module 130 controls the broadband light source 140 to emit monitoring light waves. These monitoring light waves sequentially pass through the first SOA optical switch 160, the first port and third port of the first circulator 110, the first splitting end and the first optical transmission end of the first beam splitter 120, and are then output to the transmission fiber 200. From there, they are transmitted to the auxiliary equipment, sequentially passing through the second optical transmission end and the fourth splitting end of the second beam splitter 320, and then to the fiber optic code 370. The fiber optic code 370 reflects the light back to the fiber optic code light wave. After returning to the monitoring station, the fiber optic code light wave is transmitted from the second SOA optical switch 170 to the spectral module 180. The spectral module 180 then analyzes the fiber optic code light wave to obtain its wavelength, energy, etc., thereby enabling monitoring of the transmission fiber 200. It should be noted that the spectral module 180 can only receive pulsed light waves within its corresponding center wavelength range. In some embodiments of this invention, it can only receive fiber optic coded light waves and cannot receive pulsed light waves sent by the auxiliary equipment for communication.

[0059] The first control module 130 controls the broadband light source 140 to emit communication light waves. The communication light waves pass sequentially through the first SOA optical switch 160, the first port and the third port of the first circulator 110, the first splitting end and the first optical transmission end of the first beam splitter 120, and are then output to the transmission optical fiber 200. The transmission optical fiber 200 then transmits the light waves to the auxiliary equipment, and sequentially through the second optical transmission end and the third splitting end of the second beam splitter 320, and the sixth port of the second circulator 310, to the second communication light wave receiving unit 350. After photoelectric conversion and analog-to-digital conversion by the second communication light wave receiving unit 350, the light waves are transmitted to the second control module 330. The second control module 330 switches the optical channel of the optical channel switching module 360 ​​according to the communication light waves, so that the monitoring station can communicate with other devices corresponding to the optical channel.

[0060] The first SOA optical switch 160 and the second SOA optical switch 170 are turned on alternately to realize the transmission of a single pulse of light wave and the collection of reflected light waves after a certain time interval. The time difference between the turn-on of the first SOA optical switch 160 and the second SOA optical switch 170 can be used to calculate the distance of the auxiliary equipment relative to the monitoring station.

[0061] It should be noted that the first beam splitting end of the first beam splitter 120 and the fourth beam splitting end of the second beam splitter 320 both have a 99% beam splitting rate, and the second beam splitting end of the first beam splitter 120 and the third beam splitting end of the second beam splitter 320 both have a 1% beam splitting rate. The specific beam splitting principle can be varied and should not be regarded as a limitation of the present invention. The working principle of the beam splitter is prior art known to those skilled in the art and will not be described in detail here.

[0062] Both the first control module 130 and the second control module 330 employ FPGAs, enabling high-speed control, data acquisition, and analysis. Other hardware structures can also be used for the first control module 130 and the second control module 330, and this should not be considered a limitation of the invention. The broadband light source 140 can transmit a wide range of light waves, encompassing the center wavelengths from the fiber optic coding information of multiple other devices. The fiber optic code 370 uses multiple light reflection facets arranged in different ways to reflect light waves of different center wavelengths, achieving unique identification of the light waves. The optical channel switching module 360 ​​can employ an optical switch or other optical devices with optical path switching functions; this is not limited to these methods.

[0063] In some embodiments of the present invention, the center wavelength of the pulsed light wave emitted by the pulsed light source 340 is orthogonal to the center wavelength of the pulsed light wave emitted by the broadband light source 140. This orthogonality between the center wavelengths of the pulsed light waves emitted by the pulsed light source 340 and the broadband light source 140 allows for the differentiation of monitoring light waves and communication light waves, thus avoiding the difficulty in distinguishing between them at the source. It should be noted that the center wavelengths of the pulsed light waves emitted by the pulsed light source 340 and the broadband light source 140 may not be orthogonal, and this should not be considered a limitation of the present invention.

[0064] In some embodiments of the present invention, reference is made to Figure 1 The first communication optical wave receiving unit 150 includes a first photoelectric conversion unit 151 and a first analog-to-digital conversion unit 152. One end of the first photoelectric conversion unit 151 is connected to the second beam splitter; one end of the first analog-to-digital conversion unit 152 is connected to the other end of the first photoelectric conversion unit 151, and the other end is connected to the first control module 130. The second communication optical wave receiving unit 350 includes a second photoelectric conversion unit 351 and a second analog-to-digital conversion unit 352. One end of the second photoelectric conversion unit 351 is connected to the fifth port; one end of the second analog-to-digital conversion unit 352 is connected to the other end of the second photoelectric conversion unit 351, and the other end is connected to the second control module 330. Both the first photoelectric conversion unit 151 and the second photoelectric conversion unit 351 are used to perform photoelectric conversion on the communication optical wave, and both the first analog-to-digital conversion unit 152 and the second analog-to-digital conversion unit 352 are used to perform photoelectric conversion on the communication optical wave before analog-to-digital conversion, and then transmit the converted signal to the first control module 130 or the second control module 330 for analysis. It should be noted that the working principles of the first photoelectric conversion unit 151, the second photoelectric conversion unit 351, the first analog-to-digital conversion unit 152, and the second analog-to-digital conversion unit 352 are all existing technologies known to those skilled in the art, and will not be elaborated here.

[0065] The following will combine Figures 1 to 4 The fiber optic coding monitoring and communication integrated control method of the present invention will be clearly and completely described in the following embodiments. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0066] The fiber optic coding monitoring and communication integrated control method according to a second aspect embodiment of the present invention is applied to the fiber optic coding monitoring and communication integrated system according to a first aspect embodiment. The control method includes the following steps:

[0067] Monitoring light waves are emitted by broadband light source 140 and transmitted to auxiliary equipment via transmission optical fiber 200;

[0068] The spectral module 180 receives the fiber-coded light wave reflected back by the fiber code 370 and analyzes the fiber-coded light wave to complete the monitoring of the transmission fiber 200.

[0069] The broadband light source 140 sends communication light waves and transmits them to the auxiliary equipment through the transmission optical fiber 200; both the monitoring light wave and the communication light wave are generated by the broadband light source 140 under the control of the first control module 130, and the pulse widths of the monitoring light wave and the communication light wave are different.

[0070] The second communication optical wave receiving unit 350 receives the communication optical wave, and the second control module 330 switches the optical channel of the optical channel switching module 360 ​​according to the communication optical wave, so that the monitoring station can communicate with other devices corresponding to the optical channel.

[0071] The first control module 130 controls the broadband light source 140 to emit monitoring light waves. The monitoring light waves are transmitted to the auxiliary equipment through the transmission optical fiber 200 and reflected back to the optical fiber encoded light waves through the optical fiber encoder 370. The optical fiber encoded light waves are transmitted back to the spectral module 180 of the monitoring station. The spectral module 180 then analyzes the optical fiber encoded light waves to obtain the wavelength, energy, etc. of the optical fiber encoded light waves, thereby realizing the monitoring of the transmission optical fiber 200.

[0072] The first control module 130 controls the broadband light source 140 to emit communication light waves. The communication light waves are transmitted to the auxiliary equipment through the transmission optical fiber 200. After photoelectric conversion and analog-to-digital conversion by the second communication light wave receiving unit 350, they are transmitted to the second control module 330. The second control module 330 switches the optical channel of the optical channel switching module 360 ​​according to the communication light waves, so that the monitoring station can communicate with other devices corresponding to the optical channel.

[0073] According to an embodiment of the present invention, the integrated control method for fiber optic coding monitoring and communication is applied to the integrated system for fiber optic coding monitoring and communication described in the first aspect embodiment. A broadband light source 140 transmits monitoring light waves through a transmission fiber optic cable 200 to an auxiliary device. A spectral module 180 receives and analyzes the fiber optic coding light waves reflected back from the fiber optic code 370, thereby achieving the purpose of monitoring the transmission fiber optic cable 200. A communication light wave is also transmitted from the broadband light source 140 to the auxiliary device through the transmission fiber optic cable 200. A second control module 330 switches the optical channel of the optical channel switching module 360 ​​according to the communication light wave, enabling the monitoring station to communicate with other devices corresponding to the optical channel. This integrated control method for fiber optic coding monitoring and communication enables the unique identification of other devices while simultaneously monitoring the monitored fiber optic cable and using the monitored fiber optic cable to achieve communication between the monitoring station and different other devices.

[0074] In some embodiments of the present invention, reference is made to Figure 2 and Figure 3The pulse width r1 of the communication light wave is smaller than the pulse width r2 of the fiber optic coded light wave. Different pulse widths can be used to distinguish between the communication light wave and the fiber optic coded light wave. Specific setting rules can vary and should not be considered as limitations on the present invention.

[0075] In some embodiments of the present invention, reference is made to Figure 3 The broadband light source 140 transmits communication light waves and transmits them to auxiliary equipment via the transmission optical fiber 200, including the following steps:

[0076] A preset switching control pulse sequence is generated, and the integration time t is waited. The switching control pulse sequence is used to characterize the control command for switching optical channels.

[0077] Generate an optical fiber coded pulse sequence, which is used to characterize the optical fiber coded information of other devices to be switched;

[0078] The constraint formula for the integration time t is: integration time t = ((L*h) / v) + (12*k*r1);

[0079] In the formula, L is the length of the transmission fiber 200, h is the group refractive index, v is the speed of light, k is the channel number of the optical channel to be switched, and r1 is the pulse width of the communication optical wave.

[0080] like Figure 3 As shown, the switching control pulse sequence consists of two pulses with a width of r1, representing the control command to switch the optical channel. Afterwards, there is a waiting integration time t, where k represents the channel number of the optical channel to be switched. The fiber optic encoded pulse sequence generated during the waiting integration time t represents the fiber optic encoded information of the other device to be switched. If the center wavelength of the fiber optic encoded information of the other device to be switched is 1512, then the pulse interval of the fiber optic encoded pulse sequence is r1, 5*r1, r1, 2*r1. If the number is 0, the default pulse interval is 10*r1. It should be noted that the switching control pulse sequence can be changed and should not be considered a limitation of the present invention.

[0081] In some embodiments of the present invention, reference is made to Figure 2 and Figure 3 The communication optical wave is received by the second communication optical wave receiving unit 350, and the optical channel of the optical channel switching module 360 ​​is switched by the second control module 330 according to the communication optical wave, including the following steps:

[0082] The second communication optical wave receiving unit 350 receives the communication optical wave, and the second control module 330 identifies the bandwidth of the communication optical wave;

[0083] Retain data within the preset communication bandwidth range in the communication light wave, and discard data exceeding the communication bandwidth range in the communication light wave;

[0084] The second control module 330 identifies the switching control pulse sequence, the integration time t, and the fiber optic encoded pulse sequence, and switches to the corresponding optical channel according to the value of k in the integration time t.

[0085] The pulse width r1 of the communication light wave is different from the pulse width r2 of the monitoring light wave. The communication bandwidth range characterizes the bandwidth range of the communication light wave. Once it is detected that the received data is not within the communication bandwidth range, it is determined that it does not belong to the communication light wave and is directly discarded. Only the data within the communication bandwidth range is retained.

[0086] When the switching control pulse sequence is detected, it means that the optical channel needs to be switched. Then, the value of k in the waiting integration time t is identified to obtain the channel number to be switched. The fiber optic encoded pulse sequence represents the fiber optic encoded information of other devices that need to communicate, thus realizing the unique identification of the devices.

[0087] In some embodiments of the present invention, reference is made to Figure 1 After the auxiliary equipment is powered on, it performs the following steps: Multiple registered optical pulses are sent to the monitoring station by the pulse light source 340. These multiple registered optical pulses are used to characterize the fiber optic coding information of different other devices. Since the fiber optic coding information of different other devices is different, sending multiple registered optical pulses to the monitoring station after the auxiliary equipment is powered on allows the monitoring station to obtain the fiber optic coding information of these other devices. This facilitates subsequent communication between the monitoring station and other devices, allowing it to send communication optical waves corresponding to the fiber optic coding information of those devices for addressable communication.

[0088] In some embodiments of the present invention, reference is made to Figure 1 The process of sending a monitoring light wave to receiving the fiber-coded light wave reflected back by the fiber optic code 370 includes the following steps:

[0089] The broadband light source 140 and the first SOA optical switch 160 are activated, and the monitoring light wave is generated by the broadband light source 140 and output through the first SOA optical switch 160.

[0090] The optical fiber encoded light wave reflected back by the optical fiber encoder 370 is received, and the second SOA optical switch 170 is activated. The optical fiber encoded light wave is output to the spectral module 180 through the second SOA optical switch 170. The start-up time difference between the first SOA optical switch 160 and the second SOA optical switch 170 is used to calculate the distance between the monitoring station and the auxiliary equipment.

[0091] The first SOA optical switch 160 and the second SOA optical switch 170 are turned on alternately to realize the transmission of a single pulse of light wave and the collection of reflected light waves after a certain time interval. The time difference between the turn-on of the first SOA optical switch 160 and the second SOA optical switch 170 can be used to calculate the distance of the auxiliary equipment relative to the monitoring station.

[0092] To better understand the integrated control method for fiber optic coding monitoring and communication in this invention, a detailed description will be given below using a specific embodiment where the optical channel number is switched to 2 and the fiber optic coding of the other devices corresponding to optical channel 2 is 1512.

[0093] After the auxiliary equipment is powered on, the pulse light source 340 sends multiple registered optical pulses to the monitoring station. These multiple registered optical pulses are used to characterize the fiber optic coding information of different other devices.

[0094] The first control module 130 controls the activation of the broadband light source 140 and the first SOA optical switch 160, and generates a monitoring light wave with a pulse width of r2 through the broadband light source 140 and outputs it through the first SOA optical switch 160.

[0095] The optical fiber encoded light wave reflected back by the optical fiber encoder 370 is received, and the second SOA optical switch 170 is activated. The optical fiber encoded light wave is output to the spectrum module 180 through the second SOA optical switch 170 to analyze the optical fiber encoded light wave and obtain the wavelength, energy, etc. of the optical fiber encoded light wave, so as to realize the monitoring of the transmission optical fiber 200.

[0096] The first control module 130 controls the broadband light source 140 to emit a communication light wave with a pulse width of r1. The second communication light wave receiving unit 350 of the auxiliary equipment receives the communication light wave and performs photoelectric conversion and analog-to-digital conversion. The second control module 330 identifies the bandwidth of the communication light wave, retains the data in the communication light wave within the preset communication bandwidth range, and discards the data in the communication light wave that exceeds the communication bandwidth range.

[0097] The second control module 330 identifies the switching control pulse sequence, integration time t, and fiber optic encoded pulse sequence in the communication optical wave. After identifying two pulses with a width of r1, the k in the waiting integration time t is 2, and the pulse interval of the fiber optic encoded pulse sequence is r1, 5*r1, r1, 2*r1. The control switches to optical channel 2 so that the monitoring station can communicate with other devices corresponding to optical channel 2.

[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. An integrated system for optical fiber coding monitoring and communication, characterized in that, include: The monitoring station includes a first circulator, a first beam splitter, a first control module, and a broadband light source, a first SOA optical switch, a second SOA optical switch, a spectral module, and a first communication optical wave receiving unit, all connected to the first control module. The first circulator has a first port, a second port, and a third port. The first beam splitter has a first beam splitting end, a second beam splitting end, and a first optical transmission end connected to one end of a transmission optical fiber. The first SOA optical switch is connected between the broadband light source and the first port. The second SOA optical switch is connected between the spectral module and the second port. The third port is connected to the first beam splitting end. The first communication optical wave receiving unit is connected between the first control module and the second beam splitting end. The auxiliary equipment includes a second circulator, a second beam splitter, a second communication optical wave receiver, a second control module, a pulsed light source, an optical channel switching module, and an optical fiber encoder. The second circulator has a fourth port, a fifth port, and a sixth port. The second beam splitter has a third beam splitter, a fourth beam splitter, and a second optical transmission end connected to the other end of the transmission optical fiber. The optical channel switching module has a control input end, an encoding input end, and multiple optical channels. The pulsed light source is connected between the fourth port and the second control module. The second communication optical wave receiver is connected between the fifth port and the second control module. The sixth port is connected to the third beam splitter. The optical fiber encoder is connected between the fourth beam splitter and the encoding input end.

2. The integrated fiber optic coding monitoring and communication system according to claim 1, wherein The center wavelength of the pulsed light wave emitted by the pulsed light source is orthogonal to the center wavelength of the pulsed light wave emitted by the broadband light source.

3. The integrated optical fiber coding monitoring and communication system according to claim 1, wherein The first communication optical wave receiving unit includes: The first photoelectric conversion unit has one end connected to the second beam splitter; The first analog-to-digital conversion unit has one end connected to the other end of the first photoelectric conversion unit and the other end connected to the first control module.

4. The integrated optical fiber coding monitoring and communication system according to claim 1, wherein The second communication optical wave receiving unit includes: The second photoelectric conversion unit has one end connected to the fifth port; The second analog-to-digital conversion unit has one end connected to the other end of the second photoelectric conversion unit and the other end connected to the second control module.

5. An integrated control method for optical fiber coding monitoring and communication, characterized in that, The control method, applied to the integrated fiber optic coding monitoring and communication system as described in any one of claims 1 to 4, includes the following steps: Monitoring light waves are emitted by a broadband light source and transmitted to auxiliary equipment via optical fiber. The optical fiber is monitored by receiving the optical fiber encoded light wave reflected back by the optical fiber encoding through the spectral module and analyzing the optical fiber encoded light wave. The broadband light source sends communication light waves, which are transmitted to the auxiliary device through the transmission optical fiber; both the monitoring light wave and the communication light wave are generated by the broadband light source under the control of the first control module, and the pulse widths of the monitoring light wave and the communication light wave are different. The second communication optical wave receiving unit receives the communication optical wave, and the second control module switches the optical channel of the optical channel switching module according to the communication optical wave, so that the monitoring station can communicate with other devices corresponding to the optical channel.

6. The integrated control method for fiber optic coding monitoring and communication according to claim 5, characterized in that, The pulse width of the communication optical wave is smaller than the pulse width of the fiber optic encoded optical wave.

7. The integrated control method for fiber optic coding monitoring and communication according to claim 5, characterized in that, The process of transmitting communication light waves from the broadband light source and transmitting them to the auxiliary device via the transmission optical fiber includes the following steps: A preset switching control pulse sequence is generated, and an integration time t is waited for. The switching control pulse sequence is used to characterize the control command for switching the optical channel. Generate an optical fiber coded pulse sequence, which is used to characterize the optical fiber coded information of the other devices to be switched; The constraint formula for the integration time t is: integration time t = ((L*h) / v) + (12*k*r1); In the formula, L is the length of the transmission optical fiber, h is the group refractive index, v is the speed of light, k is the channel number of the optical channel to be switched, and r1 is the pulse width of the communication optical wave.

8. The integrated control method for fiber optic coding monitoring and communication according to claim 7, characterized in that, The step of receiving the communication light wave through the second communication light wave receiving unit and switching the optical channel of the optical channel switching module according to the communication light wave includes the following steps: The second communication optical wave receiving unit receives the communication optical wave, and the second control module identifies the bandwidth of the communication optical wave; Data within a preset communication bandwidth range in the communication light wave is retained, while data exceeding the communication bandwidth range in the communication light wave is discarded. The second control module identifies the switching control pulse sequence, the integration time t, and the fiber optic encoded pulse sequence, and switches to the corresponding optical channel according to the value of k in the integration time t.

9. The integrated control method for fiber optic coding monitoring and communication according to claim 5, characterized in that, After the auxiliary equipment is powered on, the following steps are performed: Multiple registered light pulses are sent to the monitoring station by a pulsed light source. These multiple registered light pulses are used to characterize the fiber optic coding information of different other devices.

10. The integrated control method for fiber optic coding monitoring and communication according to claim 5, characterized in that, The process of sending the monitoring light wave to receiving the fiber-coded light wave reflected back by the fiber code includes the following steps: The broadband light source and the first SOA optical switch are activated, and the monitoring light wave is generated by the broadband light source and output through the first SOA optical switch. The system receives the fiber-coded light wave reflected back by the fiber code and activates the second SOA optical switch to output the fiber-coded light wave to the spectral module; wherein the activation time difference between the first SOA optical switch and the second SOA optical switch is used to calculate the distance between the monitoring station and the auxiliary equipment.

Images