Intelligent monitoring system and method based on optical fiber composite overhead ground wire transmission line

Abstract

The present invention relates to an intelligent monitoring system based on an optical fiber composite overhead ground wire transmission line, and relates to the field of communication technology. The intelligent monitoring system based on an optical fiber composite overhead ground wire transmission line includes a central control platform module, a transmission line, and a detection module; the transmission line is implemented as an OPGW transmission line; the central control platform module includes a laser, a central controller, and a first wavelength division multiplexer; the first wavelength division multiplexer is connected to one end of the OPGW transmission line; the remote controller is communicatively connected to the endpoint energy storage device and is also communicatively connected to the central controller; the sensor module includes at least two sensors, and the sensors in the sensor module are communicatively connected to the remote controller. A control platform is set at the near end of the transmission line, and a control and detection module is established at the far end to construct an intelligent system with data acquisition, monitoring, and feedback functions to achieve safe and effective information monitoring of the environment around the transmission line.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an intelligent monitoring system and method based on an optical fiber composite overhead ground wire transmission line. Background Art

[0002] In response to the development needs of integrated, broadband, digital, multimedia, and computerized power communications, Optical Fiber Composite Overhead Ground Wire (OPGW) cables have emerged. OPGW cables not only improve the utilization efficiency of power towers, but also give full play to the dual functions of communication optical cables and wires, promoting the development of power communication networks and bringing significant economic benefits to society.

[0003] In related technologies, monitoring of OPGW transmission lines is primarily accomplished through manual inspections. In one example, personnel conduct manual patrols to assess the condition of OPGW transmission lines. When anomalies are observed, they identify and address circuit faults through manual inspection and analysis.

[0004] However, due to the wide deployment and wide application of OPGW transmission lines, the traditional method of manually troubleshooting or analyzing line faults has many inconveniences and is inefficient in identifying and solving problems. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the existing technology and to provide an intelligent monitoring system and method based on an optical fiber composite overhead ground wire transmission line, so as to improve the monitoring efficiency of the OPGW transmission line during operation and thereby improve the efficiency of solving problems that occur in the transmission line.

[0006] According to the technical solution provided by the present invention, on the one hand, an intelligent monitoring system based on optical fiber composite overhead ground wire transmission line is provided, which includes a central control platform module, a transmission line and a detection module;

[0007] The central control platform module and the detection module are connected through a transmission line, which is implemented as an OPGW transmission line;

[0008] The central control platform module includes a laser, a central controller and a first wavelength division multiplexer;

[0009] The laser is connected to the central controller for communication, and the first wavelength division multiplexer is connected to the laser for communication;

[0010] The first wavelength division multiplexer is connected to one end of the OPGW transmission line;

[0011] The detection module includes a second wavelength division multiplexer, an endpoint energy storage device, a remote controller and a sensor module;

[0012] The second wavelength division multiplexer is connected to the second end of the OPGW transmission line;

[0013] The endpoint energy storage device is connected to the second wavelength division multiplexer, and the endpoint energy storage device is used for performing photoelectric conversion;

[0014] The remote controller is in communication with the endpoint energy storage device and is in communication with the central controller;

[0015] The sensor module includes at least two sensors, and the sensors in the sensor module are communicatively connected to the remote controller.

[0016] In one possible implementation, the central controller includes a first photoelectric signal conversion module, a first photoelectric transceiver module, and a first signal processor;

[0017] The first photoelectric conversion module is connected to the first photoelectric transceiver module;

[0018] The first signal processor is connected to the first photoelectric conversion module.

[0019] In a possible implementation, the central controller further includes a first coupler, a first circulator, and a first decoupler;

[0020] The first circulator is communicatively connected to the first coupler, the first decoupler and the first optoelectronic transceiver module respectively.

[0021] In a possible implementation, the remote controller further includes a second photoelectric conversion module, a second photoelectric transceiver module, and a second signal processor;

[0022] The second photoelectric conversion module is connected to the second photoelectric transceiver module;

[0023] The second signal processor is connected to the second photoelectric conversion module.

[0024] In one possible implementation, the remote controller further includes a second coupler, a second circulator, and a second decoupler;

[0025] The second circulator is communicatively connected to the second coupler, the second decoupler and the second optoelectronic transceiver module respectively.

[0026] In a possible implementation, the laser is a 1550 nm laser, and the operating power of the laser is higher than 1 W.

[0027] In a possible implementation, both the first wavelength division multiplexer and the second wavelength division multiplexer are implemented as custom crystal wavelength division multiplexers.

[0028] In a possible implementation, the sensor module includes at least one temperature sensor, at least one humidity sensor, at least one light intensity sensor, and at least one wind speed sensor.

[0029] In one possible implementation, at least one temperature sensor, at least one humidity sensor, at least one light intensity sensor, and at least one wind speed sensor are all implemented as low-power sensors.

[0030] On the other hand, a method for intelligent monitoring of an optical fiber composite overhead ground wire transmission line is provided, and the method is applied to any of the above-described intelligent monitoring systems for an optical fiber composite overhead ground wire transmission line, the method comprising:

[0031] The central controller starts the laser to generate an energy light signal, and generates a control command through the central controller. The control command is used to instruct the remote controller to collect data from the sensor;

[0032] The central controller converts the control command into a photoelectric signal to obtain a control command optical signal;

[0033] The control command optical signal and the energy optical signal are coupled by a first wavelength division multiplexer to obtain a coupled optical signal, and the coupled optical signal is transmitted through a transmission line;

[0034] Decoupling the coupled optical signal through a second wavelength division multiplexer to obtain a control command optical signal and an energy optical signal, and sending the control command optical signal and the energy optical signal to an endpoint energy storage device;

[0035] The energy optical signal and the control command optical signal are converted into photoelectricity by the endpoint energy storage device to obtain the control command and electrical energy;

[0036] Distribute power to the remote controller through the endpoint energy storage device and forward control commands to the remote controller;

[0037] Performing data acquisition control and power supply distribution on at least one sensor in the sensor module based on a control command through a remote controller;

[0038] Acquire detection data fed back by the sensor through a remote controller, and generate feedback data based on the detection data;

[0039] The remote controller generates a feedback optical signal according to the feedback data, and feeds the feedback optical signal back to the central controller through the second wavelength division multiplexer, the transmission line and the first wavelength division multiplexer.

[0040] The beneficial effects brought about by the technical solution provided by the present invention include at least:

[0041] During the laying process of transmission lines based on OPGW, a control platform is set up at the near end of the transmission line, and a control and detection module is established at the far end. In the process of applying OPGW transmission lines to transmission lines, the near-end central controller can monitor the input of the transmission, and the far-end detection module can determine the current output through sensors, thereby building an intelligent system with data collection, monitoring, and feedback functions to achieve safe and effective information monitoring of the environment around the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0043] Figure 1 A schematic structural diagram of an intelligent monitoring system based on an optical fiber composite overhead ground wire transmission line provided by the present invention;

[0044] Figure 2 This is a structural diagram of a central controller provided by the present invention.

[0045] Figure 3 This is a structural diagram of a remote controller provided by the present invention.

[0046] Figure 4 A schematic flow chart of an intelligent monitoring method for optical fiber composite overhead ground wire transmission lines provided by the present invention.

[0047] Description of the accompanying drawings:

[0048] 1-transmission line, 2-laser, 3-central controller, 4-first wavelength division multiplexer, 5-second wavelength division multiplexer, 6-end point energy storage device, 7-remote controller, 8-temperature sensor, 9-humidity sensor, 10-light intensity sensor, 11-wind speed sensor;

[0049] 31 - first photoelectric conversion module, 32 - first photoelectric transceiver module, 33 - first signal processor, 34 - first coupler, 35 - first circulator, 36 - first decoupler;

[0050] 71 - second photoelectric conversion module, 72 - second photoelectric transceiver module, 73 - second signal processor, 74 - second coupler, 75 - second circulator, 76 - second decoupler. DETAILED DESCRIPTION

[0051] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0052] Figure 1 The present invention provides a schematic diagram of an intelligent monitoring system based on an optical fiber composite overhead ground wire transmission line. Figure 1 The system includes a central control platform module, a transmission line 1, and a detection module. The central control platform module and the detection module are communicatively connected via the transmission line 1, which is implemented as an OPGW transmission line. The central control platform module includes a laser 2, a central controller 3, and a first wavelength division multiplexer 4. The laser 2 is communicatively connected to the central controller 3, and the first wavelength division multiplexer 4 is communicatively connected to the laser 2. The first wavelength division multiplexer 4 is connected to one end of the OPGW transmission line. The detection module includes a second wavelength division multiplexer 5, an endpoint energy storage device 6, a remote controller 7, and a sensor module. The second wavelength division multiplexer 5 is connected to the second end of the OPGW transmission line. The endpoint energy storage device 6 is connected to the second wavelength division multiplexer 5, and the endpoint energy storage device 6 is used for photoelectric conversion. The remote controller 7 is communicatively connected to the endpoint energy storage device 6 and to the central controller 3. The sensor module includes at least two sensors, and the sensors in the sensor module are communicatively connected to the remote controller 7.

[0053] It should be noted that the embodiment of the present application is adapted for power transmission within a transmission line of 20 km, so the transmission line is implemented as an OPGW transmission line. In actual application, the OPGW transmission line can realize the co-channel transmission of energy and information.

[0054] In this embodiment of the present application, the central platform control module is the near-end control module, located at the operation end and directly controlled by the staff at the power transmission end. The detection module is the remote control module, located at the remote circuit input end, and the staff at the remote power connection end provide real-time confirmation and feedback on the working status.

[0055] In this embodiment of the present application, the central control platform module includes a laser 2, a central controller 3, and a first wavelength division multiplexer 4. The laser 2 is an energy supply unit capable of providing energy. The central controller 3 is implemented as a self-made integrated circuit, which is used to control the start and stop and operating status of the laser 2, and to interact with the remote controller 7 to transmit communication instructions from the near end to the remote end, or receive control instructions transmitted from the remote end. The first wavelength division multiplexer 4 is used to couple light of different wavelengths input into the OPGW transmission line.

[0056] In this embodiment of the present application, the second wavelength division multiplexer 5 within the detection module is used to decouple light from the transmission line. A power-off energy storage device is used to perform photoelectric conversion and energy storage, and then supply the stored energy to the remote controller 7. The remote controller 7 is capable of receiving instructions from the central controller 3 and issuing measurement instructions to the sensors. After receiving the issued measurement instructions, at least two sensors can detect at least one of various environmental data such as temperature, humidity, light intensity, and wind speed at the remote location.

[0057] It should be noted that in some embodiments of the present application, the central control platform module is located on the substation side, and the detection module is located on the tower side that has a circuit transmission relationship with the substation. In other embodiments of the present application, when the tower side meets the hardware implementation requirements, the central control platform module can be located on the tower side, and correspondingly, the detection module can be located on the lower-level tower side that has a circuit transmission relationship with the tower where the central control platform module is located, to adapt to the tree-shaped transmission structure commonly used in power transmission processes.

[0058] Next, the working principle of the intelligent monitoring system based on the optical fiber composite overhead ground wire transmission line provided in the embodiment of the present application is described:

[0059] In the central control platform, based on the current power supply status and power requirements, the central controller activates the laser, which serves as the energy source for power transmission. Simultaneously, the central controller generates commands for controlling the remote controllers. The laser's energy output and the remote controller's data output are transmitted as light of different wavelengths to the input of the first wavelength division multiplexer. The first wavelength division multiplexer couples these different wavelengths of light into the OPGW transmission line, enabling co-channel transmission of energy and information. After the second wavelength division multiplexer decouples the optical signals, the detection module receives the energy and information. The endpoint energy storage device then performs photoelectric conversion and energy storage, with the stored energy then supplied to the remote controller. Upon receiving the commands, the remote controller can issue individual or unified signals to each sensor in the sensor module and allocate the received energy appropriately for use by the sensors. Upon receiving the sensor's feedback data, the remote controller will respond in the same manner. Upon receiving the feedback data, the computer device will also respond to the central controller via the OPGW transmission line in the same manner.

[0060] To sum up, the method provided in the embodiment of the present application sets up a control platform at the near end of the transmission line and establishes a control and detection module at the far end during the process of laying the transmission line based on OPGW. In the process of applying the OPGW transmission line to the transmission line, the near-end central controller can monitor the input status of the transmission, and the far-end detection module can determine the current output status through the sensor, thereby constructing an intelligent system with data collection, monitoring, and feedback functions, and realizing safe and effective information monitoring of the environment around the transmission line.

[0061] In an optional embodiment, the central controller 3 includes a first photoelectric signal conversion module, a first photoelectric transceiver module 32, and a first signal processor 33; the first photoelectric conversion module 31 is connected to the first photoelectric transceiver module 32; and the first signal processor 33 is connected to the first photoelectric conversion module 31. In this embodiment of the present application, the central controller 3 also includes a first coupler 34, a first circulator 35, and a first decoupler 36. The first circulator 35 is communicatively connected to the first coupler 34, the first decoupler 36, and the first photoelectric transceiver module 32, respectively.

[0062] Please refer to Figure 2 In the embodiment of the present application, the feedback signal received by the central controller 3 is also transmitted through the OPGW line, so the signal is implemented as an optical signal. Therefore, in the embodiment of the present application, the first coupler 34, the first circulator 35 and the first decoupler 36 are set, and after the optical signal is preliminarily processed, the central controller 3 is also configured with a first photoelectric signal conversion module, a first photoelectric transceiver module 32 and a first signal processor 33 to finally convert the optical signal into an electrical signal, and read and process it. Optionally, the first photoelectric conversion module 31 is implemented as a photoelectric converter, the first photoelectric transceiver module 32 is implemented as a photoelectric transceiver, and the first signal processor 33 is implemented as an electrical signal processor. The embodiment of the present application does not limit the actual implementation form and signals of the above modules and devices.

[0063] In an optional embodiment, the remote controller 7 further includes a second photoelectric conversion module 71, a second photoelectric transceiver module 72, and a second signal processor 73. The second photoelectric conversion module 71 is connected to the second photoelectric transceiver module 72, and the second signal processor 73 is connected to the second photoelectric conversion module 71. In the embodiment of the present application, the remote controller 7 further includes a second coupler 74, a second circulator 75, and a second decoupler 76; the second circulator 75 is communicatively connected to the second coupler 74, the second decoupler 76, and the second photoelectric transceiver module 72, respectively.

[0064] In the implementation of this application, the structure and function of the remote controller 7 are the same as those of the central controller 3, and will not be described in detail here.

[0065] It should be emphasized that in the present invention, the devices within both the proximal and remote controllers 7 must be selected based on the actual conditions at both ends of the OPGW. Therefore, the specific device selection is not disclosed in this embodiment. After determining the application scenario, personnel can determine and select the specific implementation of the device based on the device functions provided above.

[0066] In an optional embodiment, the laser 2 is a 1550 nm laser, and the operating power of the laser 2 is higher than 1 W.

[0067] In the embodiment of this application, the energy intensity of laser 2 is limited to adapt to the operating requirements of the OPGW transmission line. It should be noted that the line width of the laser is greater than 10nm. In actual application scenarios, the laser is a customized laser determined according to the application scenario requirements and meets the above basic conditions.

[0068] In an optional embodiment, both the first wavelength division multiplexer 4 and the second wavelength division multiplexer 5 are implemented as custom crystal-type wavelength division multiplexers. Because the wavelength division multiplexers in this application will be subjected to high optical power, a coated wavelength division multiplexer cannot be used, and a crystal-type wavelength division multiplexer is required. Optionally, both the first wavelength division multiplexer and the second wavelength division multiplexer need to be customized.

[0069] In an optional embodiment, the sensor module includes at least one temperature sensor 8 , at least one humidity sensor 9 , at least one light intensity sensor 10 and at least one wind speed sensor 11 .

[0070] In an optional embodiment, the at least one temperature sensor 8 , the at least one humidity sensor 9 , the at least one light intensity sensor 10 , and the at least one wind speed sensor 11 are all implemented as low-power consumption sensors.

[0071] Figure 4 A flowchart of an intelligent monitoring method for an optical fiber composite overhead ground wire transmission line provided by an exemplary embodiment of the present application is shown. The method is applied to an intelligent monitoring system for an optical fiber composite overhead ground wire transmission line as described in the above embodiment. The method includes:

[0072] Step 401: Start the laser through the central controller to generate an energy light signal, and generate a control command through the central controller. The control command is used to instruct the remote controller to collect data from the sensor.

[0073] Step 402: The central controller converts the control command into an optical signal to obtain a control command optical signal.

[0074] Step 403: Couple the control command optical signal and the energy optical signal through a first wavelength division multiplexer to obtain a coupled optical signal, and transmit the coupled optical signal through a transmission line.

[0075] Step 404 : Decouple the coupled optical signal through a second wavelength division multiplexer to obtain a control command optical signal and an energy optical signal, and send the control command optical signal and the energy optical signal to an endpoint energy storage device.

[0076] Step 405 : Perform photoelectric conversion on the energy optical signal and the control command optical signal through the endpoint energy storage device to obtain the control command and electrical energy.

[0077] Step 406: distribute power to the remote controller via the endpoint energy storage device and forward control commands to the remote controller.

[0078] Step 407 : performing data acquisition control and power supply distribution on at least one sensor in the sensor module based on the control command through the remote controller.

[0079] Step 408: Acquire detection data fed back by the sensor through the remote controller, and generate feedback data based on the detection data.

[0080] Step 409 : The remote controller generates a feedback optical signal according to the feedback data, and feeds the feedback optical signal back to the central controller via the second wavelength division multiplexer, the transmission line, and the first wavelength division multiplexer.

[0081] To sum up, the method provided in the embodiment of the present application sets up a control platform at the near end of the transmission line and establishes a control and detection module at the far end during the process of laying the transmission line based on OPGW. In the process of applying the OPGW transmission line to the transmission line, the near-end central controller can monitor the input status of the transmission, and the far-end detection module can determine the current output status through the sensor, thereby constructing an intelligent system with data collection, monitoring, and feedback functions, and realizing safe and effective information monitoring of the environment around the transmission line.

[0082] The above are only optional embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent monitoring system based on optical fiber composite overhead ground wire transmission line, characterized in that: The intelligent monitoring system based on optical fiber composite overhead ground wire transmission line comprises a central control platform module, a transmission line (1) and a detection module; The central control platform module and the detection module are communicatively connected via the transmission line (1), and the transmission line (1) is implemented as an OPGW power transmission line; The central control platform module includes a laser (2), a central controller (3) and a first wavelength division multiplexer (4); The laser (2) is in communication connection with the central controller (3), and the first wavelength division multiplexer (4) is in communication connection with the laser (2); The first wavelength division multiplexer (4) is connected to one end of the OPGW transmission line; The detection module includes a second wavelength division multiplexer (5), an endpoint energy storage device (6), a remote controller (7) and a sensor module; The second wavelength division multiplexer (5) is connected to the second end of the OPGW transmission line; The endpoint energy storage device (6) is connected to the second wavelength division multiplexer (5), and the endpoint energy storage device (6) is used for performing photoelectric conversion; The remote controller (7) is in communication connection with the endpoint energy storage device (6) and is in communication connection with the central controller (3); The sensor module includes at least two sensors, and the sensors in the sensor module are communicatively connected to the remote controller (7); The central controller (3) includes a first photoelectric signal conversion module (31), a first photoelectric transceiver module (32), and a first signal processor (33); The first photoelectric conversion module (31) is connected to the first photoelectric transceiver module (32); The first signal processor (33) is connected to the first photoelectric conversion module (31).

2. The intelligent monitoring system based on optical fiber composite overhead ground wire transmission line according to claim 1 is characterized in that: The central controller (3) further includes a first coupler (34), a first circulator (35) and a first decoupler (36); The first circulator (35) is communicatively connected to the first coupler (34), the first decoupler (36), and the first optoelectronic transceiver module (32), respectively.

3. The intelligent monitoring system based on optical fiber composite overhead ground wire transmission line according to claim 1 is characterized in that: The remote controller (7) further includes a second photoelectric conversion module (71), a second photoelectric transceiver module (72), and a second signal processor (73); The second photoelectric conversion module (71) is connected to the second photoelectric transceiver module (72); The second signal processor (73) is connected to the second photoelectric conversion module (71).

4. The intelligent monitoring system based on optical fiber composite overhead ground wire transmission line according to claim 3 is characterized in that: The remote controller (7) further includes a second coupler (74), a second circulator (75) and a second decoupler (76); The second circulator (75) is communicatively connected to the second coupler (74), the second decoupler (76), and the second optoelectronic transceiver module (72), respectively.

5. The intelligent monitoring system based on optical fiber composite overhead ground wire transmission line according to claim 1, characterized in that: The laser (2) is a 1550nm laser, and the operating power of the laser (2) is higher than 1W.

6. The intelligent monitoring system based on optical fiber composite overhead ground wire transmission line according to claim 1, characterized in that: The first wavelength division multiplexer (4) and the second wavelength division multiplexer (5) are both implemented as customized crystal-type wavelength division multiplexers.

7. The intelligent monitoring system based on optical fiber composite overhead ground wire transmission line according to claim 1, characterized in that: The sensor module comprises at least one temperature sensor (8), at least one humidity sensor (9), at least one light intensity sensor (10), and at least one wind speed sensor (11).

8. The intelligent monitoring system based on optical fiber composite overhead ground wire transmission line according to claim 7, characterized in that: The at least one temperature sensor (8), the at least one humidity sensor (9), the at least one light intensity sensor (10), and the at least one wind speed sensor (11) are all implemented as low-power consumption sensors.

9. An intelligent monitoring method based on optical fiber composite overhead ground wire transmission line, characterized in that: The method is applied to the intelligent monitoring system based on the optical fiber composite overhead ground wire transmission line according to any one of claims 1 to 8, and the method comprises: The laser (2) is activated by a central controller (3) to generate an energy light signal; and a control command is generated by the central controller (3), wherein the control command is used to instruct the remote controller (7) to collect data from the sensor; The central controller (3) converts the control command into a photoelectric signal to obtain a control command optical signal; The control command optical signal and the energy optical signal are coupled via a first wavelength division multiplexer (4) to obtain a coupled optical signal, and the coupled optical signal is transmitted via a transmission line (1); Decoupling the coupled optical signal through a second wavelength division multiplexer (5) to obtain the control command optical signal and the energy optical signal, and sending the control command optical signal and the energy optical signal to an endpoint energy storage device (6); Performing photoelectric conversion on the energy optical signal and the control command optical signal through the endpoint energy storage device (6) to obtain a control command and electrical energy; Distributing electric energy to the remote controller (7) through the endpoint energy storage device (6) and forwarding control commands to the remote controller (7); Performing acquisition control and power supply distribution on at least one sensor in the sensor module based on the control command through the remote controller (7); Acquiring detection data fed back by the sensor through the remote controller (7), and generating feedback data based on the detection data; The remote controller (7) generates a feedback optical signal according to the feedback data, and the feedback optical signal is fed back to the central controller (3) via the second wavelength division multiplexer (5), the transmission line (1) and the first wavelength division multiplexer (4).

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