An optical fiber communication relay device and apparatus

Abstract

The application provides a kind of optical fiber communication relay device and equipment, the device includes master control circuit module, and respectively with the optical-electric conversion module, optical fiber transmission module and wireless transmission module connected with master control circuit module, the first end of optical-electric conversion module is connected with power distribution automation equipment, the second end of optical-electric conversion module is connected with the first end of optical fiber transmission module, the second end of optical fiber transmission module is connected with the first end of wireless transmission module, and the second end of wireless transmission module is connected with power distribution automation system;The first end of master control circuit module is connected with the third end of optical-electric conversion module, the second end of master control circuit module is connected with the third end of optical fiber transmission module, and the third end of master control circuit module is connected with the third end of wireless transmission module.The application provides a kind of communication relay structure based on optical fiber transmission, can effectively avoid the problem that wireless signal is susceptible to interference, improve the stability and reliability of communication, to improve the reliability of power supply system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of integrated circuits, in particular to an optical fiber communication relay device and equipment. BACKGROUND

[0002] With the rapid development of power system automation, distribution automation technology has become a key technology to improve power supply reliability, optimize resource allocation and reduce operating costs. The distribution automation system realizes accurate grasp and rapid response to the operation state of the power grid by real-time monitoring, control and coordination of devices in the distribution network. In this process, communication technology plays a crucial role in transmitting monitoring data, control commands and fault information to ensure efficient operation of the system.

[0003] However, traditional communication methods, especially wireless communication, have problems such as unstable signals and susceptibility to interference in complex environments. Wireless signals are affected by factors such as base station adjustment, building obstruction, weather changes, resulting in weak signals or frequent disconnections. Especially in special environments such as basements, wireless signals are difficult to cover, seriously affecting the normal work of distribution automation equipment, limiting the application range and flexibility of the distribution automation system.

[0004] As an alternative, optical fiber communication has advantages such as long transmission distance, high speed and strong anti-interference ability, but in short distance communication, especially in the communication of distribution automation equipment, its application still has certain limitations. In addition, existing solutions such as adding repeaters and optimizing wireless signals often increase the complexity and cost of the system, and the effect is limited, especially in scenarios that require short distance and high stability communication, these solutions cannot fully meet the needs. Therefore, a new type of communication relay device is needed to overcome the problems of unstable wireless signals, communication difficulties in special environments, and high operation and maintenance costs, while providing an efficient, stable and low-cost communication solution.

[0005] The foregoing narrative is intended to provide general background information and may not necessarily constitute prior art. CONTENT OF THE INVENTION

[0006] To solve the above technical problems, the present application provides an optical fiber communication relay device and equipment, which solves the problems of unstable wireless signals, frequent disconnections and communication difficulties in special environments in the distribution automation system, improves the stability and reliability of communication, and thus improves the reliability of the power supply system.

[0007] To solve the above technical problems, the application provides an optical fiber communication relay device, which comprises a master control circuit module, an optical-electric conversion module, an optical fiber transmission module and a wireless transmission module connected with the master control circuit module respectively, a first end of the optical-electric conversion module is connected with a power distribution automation device, a second end of the optical-electric conversion module is connected with a first end of the optical fiber transmission module, a second end of the optical fiber transmission module is connected with a first end of the wireless transmission module, and a second end of the wireless transmission module is connected with a power distribution automation system; a first end of the master control circuit module is connected with a third end of the optical-electric conversion module, a second end of the master control circuit module is connected with a third end of the optical fiber transmission module, and a third end of the master control circuit module is connected with a third end of the wireless transmission module.

[0008] Further, in some embodiments of the application, the optical-electric conversion module comprises a light source, a driving circuit and an optical interface, a first end of the light source is connected with the power distribution automation device, a second end of the light source is connected with a first end of the driving circuit, a second end of the driving circuit is connected with a first end of the optical interface, a second end of the optical interface is connected with a first end of the optical fiber transmission module, and a third end of the driving circuit is connected with a third end of the master control circuit module.

[0009] Further, in some embodiments of the application, the optical fiber transmission module comprises an optical fiber and an optical fiber interface, one end of the optical fiber is connected with a second end of the optical interface, the other end of the optical fiber is connected with one end of the optical fiber interface, and the other end of the optical fiber interface is connected with a first end of the wireless transmission module.

[0010] Further, in some embodiments of the application, the master control circuit module comprises a single-chip microcomputer, a download interface, an external crystal oscillator and a reset circuit, the single-chip microcomputer is connected with one end of the download interface, one end of the external crystal oscillator and one end of the reset circuit respectively.

[0011] Further, in some embodiments of the application, the device further comprises a power circuit module connected with the master control circuit module, the power circuit module comprises a lithium battery charging management unit and a 3.3V power supply unit, a first end of the 3.3V power supply unit is connected with an input voltage, a second end of the 3.3V power supply unit is connected with the lithium battery charging management unit, a third end and a fourth end of the 3.3V power supply unit are connected with a fourth end and a fifth end of the master control circuit module respectively.

[0012] Further, in some embodiments of the present application, the device further comprises a core module connected to the master circuit module, the core module comprising a core switching circuit and a core connection port, a first end of the core switching circuit being connected to a sixth end of the master circuit module, a second end of the core switching circuit being connected to the core connection port, and a third end of the core switching circuit being connected to a fifth end of the 3.3V power supply unit.

[0013] Further, in some embodiments of the present application, the device further comprises a rectifier voltage dividing circuit, an indication module and a display screen connected to the master circuit module respectively, a first end of the rectifier voltage dividing circuit being connected to a fourth end of the core switching circuit, a second end of the rectifier voltage dividing circuit being connected to a seventh end of the master circuit module; the indication module being connected to an eighth end of the master circuit module; and the display screen being connected to a ninth end of the master circuit module.

[0014] Further, in some embodiments of the present application, the device further comprises a solar energy storage module connected to the power circuit module, the solar energy storage module comprising a solar panel, an energy storage battery and a charging controller, a first end of the solar panel being connected to a first end of the energy storage battery, a second end of the energy storage battery being connected to a first end of the charging controller, and a third end of the energy storage battery being connected to the power circuit; a second end of the charging controller being connected to a tenth end of the master circuit module.

[0015] Further, in some embodiments of the present application, the device further comprises a relay drive circuit module connected to the master circuit module, a first end of the relay drive circuit module being connected to an eleventh end of the master circuit module, a second end of the relay drive circuit module being connected to a relay in the power distribution automation system, and the relay drive circuit module comprising a serial-to-parallel chip and a drive chip.

[0016] Correspondingly, the present application further provides a fiber-optic communication relay device, comprising the fiber-optic communication relay device as described above, and further comprising a device shell for packaging the fiber-optic communication relay device, the device shell being provided with a display screen, operation buttons and an indication lamp on the surface.

[0017] The implementation of the embodiments of the present application has the following beneficial effects:

[0018] In summary, the application provides a kind of optical fiber communication relay device and equipment, the optical fiber communication relay device, including main control circuit module, and respectively with the optical fiber communication relay device of main control circuit module connection, photoelectric conversion module, optical fiber transmission module and wireless transmission module, photoelectric conversion module first end connects power distribution automation equipment, photoelectric conversion module second end connects the first end of optical fiber transmission module, the second end of optical fiber transmission module connects the first end of wireless transmission module, and the second end of wireless transmission module connects power distribution automation system;The first end of main control circuit module is connected to the third end of photoelectric conversion module, the second end of main control circuit module is connected to the third end of optical fiber transmission module, and the third end of main control circuit module is connected to the third end of wireless transmission module.The application provides a kind of communication relay structure based on optical fiber transmission, converts electrical signal into optical signal by photoelectric conversion module, then utilizes optical fiber transmission to wireless transmission module, finally converts optical signal into electrical signal by wireless transmission module and then transmits to power distribution automation system, can effectively avoid the problem that wireless signal is susceptible to interference, improve the stability and reliability of communication, reduce the failure caused by signal weakening, thereby improve the reliability of power supply system, solve the communication problem of unstable wireless signal, frequent disconnection and special environment in power distribution automation system. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate an embodiment consistent with the present application and, together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the following embodiment description will be briefly introduced. Obviously, for those ordinary skilled in the field, no creative work is needed to obtain other drawings from these drawings.

[0020] Figure 1 It is the structure schematic diagram of the optical fiber communication relay device provided by the embodiment of the application.

[0021] Figure 2 It is the structure schematic diagram of the main control circuit module provided by the embodiment of the application.

[0022] Figure 3 It is the structure schematic diagram of the power supply circuit module provided by the embodiment of the application.

[0023] Figure 4 It is the structure schematic diagram of the power supply circuit provided by the embodiment of the application.

[0024] Figure 5 It is another structure schematic diagram of the optical fiber communication relay device provided by the embodiment of the application.

[0025] Figure 6 It is the structure schematic diagram of the optical fiber communication relay device provided by the embodiment of the application.

[0026] The object, features and advantages of the present application will be further understood based on the following embodiments, with reference to the drawings. The above-described embodiments of the present application have been shown and described, and the following detailed description will show and describe more specific embodiments of the present application. These embodiments and the description are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application by reference to specific embodiments. DETAILED DESCRIPTION

[0027] Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. In the following description, the same drawings are referenced to identify the same elements, unless otherwise denoted in the respective drawings. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0028] It is to be understood that the terms "including", "comprising", and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements recited, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, components, features, elements with the same name in different embodiments of the present application can have the same meaning or different meanings, and the specific meaning thereof is determined by its explanation in the specific embodiment or further combined with the context in the specific embodiment.

[0029] It should be understood that the specific embodiments described herein are merely illustrative of the present application and do not limit the present application.

[0030] In the following description, the suffixes "module", "part", or "unit" used for an element are merely intended for facilitating the description of the present application, and are not intended to limit the present application itself. Therefore, "module", "part", or "unit" can be mixedly used.

[0031] With the development of power systems, in order to improve power supply reliability, optimize resource allocation and reduce operating costs, distribution automation technology has been widely used. The distribution automation system realizes accurate control and rapid response to the operation state of the power grid by real-time monitoring, control and coordination of devices in the distribution network. In the application of distribution automation, wireless communication is one of the commonly used communication means. However, wireless signals are affected by various factors, such as base station adjustment, building shielding, weather changes, etc., resulting in signal weakening or frequent disconnection. Especially in special environments such as basements, wireless signals are difficult to cover, which seriously affects the normal work of distribution automation equipment. At present, although there are some solutions that try to improve communication quality by increasing repeaters, optimizing wireless signals, etc., these solutions often increase the complexity and cost of the system, and the effect is limited. Especially in scenarios that require short-range, high-stability communication, these solutions cannot fully meet the needs.

[0032] To solve the above problems, the present application provides an optical fiber communication relay device and equipment, which solves the problems of unstable wireless signals, frequent disconnection and communication in special environments in the distribution automation system, improves the stability and reliability of communication, and improves the reliability of the power supply system.

[0033] Please refer to Figure 1 , Figure 1 is a structural schematic diagram of an optical fiber communication relay device provided by the embodiment of the present application. The optical fiber communication relay device provided by the embodiment of the present application comprises a main control circuit module 10, and an optical-electric conversion module 20, an optical fiber transmission module 30 and a wireless transmission module 40 connected with the main control circuit module respectively. The first end of the optical-electric conversion module 20 is connected with the distribution automation equipment, the second end of the optical-electric conversion module 20 is connected with the first end of the optical fiber transmission module 30, the second end of the optical fiber transmission module 30 is connected with the first end of the wireless transmission module 40, and the second end of the wireless transmission module 40 is connected with the distribution automation system. The first end of the main control circuit module 10 is connected with the third end of the optical-electric conversion module 20, the second end of the main control circuit module 10 is connected with the third end of the optical fiber transmission module 30, and the third end of the main control circuit module 10 is connected with the third end of the wireless transmission module 40.

[0034] Specifically, the device includes a master control circuit module and an optoelectronic conversion module, a fiber transmission module and a wireless transmission module connected thereto. The first end of the optoelectronic conversion module is connected to the power distribution automation equipment, responsible for receiving the electrical signal from the power distribution automation equipment; the second end is connected to the first end of the fiber transmission module, converting the electrical signal into an optical signal and transmitting it through the optical fiber. The fiber transmission module includes an optical fiber and an optical fiber interface, one end of the optical fiber is connected to the output end of the optoelectronic conversion module, the other end is connected to the first end of the wireless transmission module, realizing the transmission of the optical signal. The second end of the wireless transmission module is connected to the power distribution automation system, responsible for converting the optical signal back into an electrical signal and sending it to the power distribution automation system through a wireless method. The control end of the optoelectronic conversion module, the fiber transmission module and the wireless transmission module is connected to the master control circuit module, responsible for the control and coordination of the whole device.

[0035] The embodiment converts the electrical signal into an optical signal through the optoelectronic conversion module, uses optical fiber transmission, avoids the problem that wireless signals are easily disturbed, and significantly improves the stability and reliability of communication; optical fiber communication has the advantages of strong anti-interference ability and long transmission distance, and is particularly suitable for communication needs in special environments such as basements. The device of the present application can ensure the normal work of the power distribution automation equipment in these special environments; compared with traditional solutions such as increasing repeaters and optimizing wireless signals, the device of the present application has a simple structure and is easy to implement, and does not require professional maintenance and adjustment, reducing the difficulty and cost of operation and maintenance; since optical fiber communication is used, the device has no special requirements for the installation position of the primary equipment, and the installation position can be flexibly selected according to the site conditions, improving the flexibility and convenience of construction.

[0036] Further, in some embodiments, the optoelectronic conversion module includes a light source, a drive circuit and an optical interface, the first end of the light source is connected to the power distribution automation equipment, the second end of the light source is connected to the first end of the drive circuit, the second end of the drive circuit is connected to the first end of the optical interface, the second end of the optical interface is connected to the first end of the fiber transmission module, and the third end of the drive circuit is connected to the third end of the master control circuit module.

[0037] Specifically, for the optoelectronic conversion module, it includes a light source, a drive circuit and an optical interface. Among them, the first end of the light source is connected to the power distribution automation equipment, responsible for receiving the electrical signal. The second end of the drive circuit is connected to the output end of the light source, controlling the light source to turn on and off, converting the electrical signal into an optical signal. The second end of the optical interface is connected to the output end of the drive circuit, and the third end is connected to the first end of the fiber transmission module, responsible for transmitting the optical signal to the optical fiber. The third end of the drive circuit is connected to the third end of the master control circuit module, and the master control circuit module is responsible for controlling and coordinating the work of the optoelectronic conversion module.

[0038] The embodiment realizes efficient conversion of electrical signals to optical signals by using light-emitting diodes (LEDs) or laser diodes (LDs) as light sources and controlling the on-off of the light sources through a driving circuit. This conversion method improves the transmission quality of signals and reduces signal loss during transmission. Optical signals have stronger anti-interference ability than electrical signals, especially in complex electromagnetic environments. Therefore, this connection mode can ensure the stability of signals during transmission and reduce communication errors caused by external interference. The design of the optoelectronic conversion module enables the entire optical fiber communication relay device to work stably in various environments, especially in environments with weak wireless signals or frequent switching, ensuring the continuity and reliability of the power distribution automation system. The design of the optoelectronic conversion module allows the optical fiber communication relay device to flexibly adapt between different power distribution automation equipment and optical fiber transmission modules, improving the adaptability and compatibility of the system.

[0039] Further, in some embodiments, the optical fiber transmission module includes an optical fiber and an optical fiber interface, one end of the optical fiber is connected to the second end of the optical interface, the other end of the optical fiber is connected to one end of the optical fiber interface, and the other end of the optical fiber interface is connected to the first end of the wireless transmission module.

[0040] Specifically, the optical fiber transmission module includes an optical fiber and an optical fiber interface, one end of the optical fiber is connected to the output end of the optoelectronic conversion module (the second end of the optical interface), the other end is connected to one end of the optical fiber interface, and the other end of the optical fiber interface is connected to the first end of the wireless transmission module, responsible for transmitting optical signals. In the optoelectronic conversion module, electrical signals are converted into optical signals and output through the optical interface. The optical signal is transmitted through the optical fiber, which serves as a transmission medium to ensure the stability and anti-interference of the signal during long-distance transmission. After the optical signal reaches the other end of the optical fiber, it is input to the wireless transmission module through the optical fiber interface.

[0041] The optical fiber transmission module uses optical fiber as a transmission medium, which has better resistance to electromagnetic interference, radio frequency interference, and other disturbances compared to traditional copper wires or wireless transmission, thereby ensuring the stability and reliability of signal transmission; the transmission distance of optical fiber is much longer than that of traditional electrical signal transmission lines, which allows the optical fiber transmission module to maintain signal integrity and strength over longer distances, making it suitable for long-distance power distribution automation systems; the signal loss during optical fiber transmission is small, and the signal quality is high, which is very important for real-time monitoring and control in power distribution automation systems as it can reduce misoperations caused by signal attenuation; the optical fiber transmission module can work in various complex environments, including humid, high-temperature, and corrosive environments, providing greater flexibility for the installation and operating environment of power distribution automation equipment.

[0042] As shown in Figure 2 , the optical fiber transmission module includes an optical fiber and an optical fiber interface, one end of the optical fiber is connected to the second end of the optical interface, the other end of the optical fiber is connected to one end of the optical fiber interface, and the other end of the optical fiber interface is connected to the first end of the wireless transmission module. Figure 2The circuit principle diagram of the wireless transmission module is shown in the figure. The wireless transmission module is composed of: U9 (WH-L101-L-H20 LoRa module) as the core wireless communication unit, responsible for LoRa communication. VCC_MCU_3V3: provides 3.3V power supply for the LoRa module. Capacitors are used for power filtering to ensure stable power supply. S1 (SW-PB) in the reset circuit is a reset button used for manual reset of the LoRa module. R1 is a pull-up resistor that ensures the reset pin remains high when not pressed. The control interface GPIO pin is used for control signal interaction between the MCU and the LoRa module. The communication interface UART_TX / RX is used for serial communication between the MCU and the LoRa module. RXD3 / TXD3 is connected to the UART interface of the MCU to realize data transmission. LED1 is connected through a current-limiting resistor R58 and is used to indicate the working state of the LoRa module. The antenna interface RFIO is the antenna interface of the LoRa module, used for sending and receiving wireless signals.

[0043] The LoRa module receives 3.3V power through the VCC_MCU_3V3 pin and starts working. The reset button S1 is used for manual reset of the LoRa module to ensure that the module can start from a known state. The MCU communicates with the LoRa module through the UART interface to send control commands and receive data. The GPIO pin is used for additional control of the LoRa module by the MCU, such as mode switching, status indication, etc. LED1 is used to indicate the working state of the LoRa module, and R58 is used to protect the LED.

[0044] This embodiment uses LoRa technology to achieve long-distance, low-power wireless communication. A manual reset button is provided for easy debugging and maintenance. Data exchange between the MCU and the LoRa module is achieved through the UART interface. The working state of the LoRa module is indicated by the LED, which is convenient for monitoring.

[0045] Further, in some embodiments, the main control circuit module includes a single-chip microcomputer, a download interface, an external crystal oscillator, and a reset circuit, and the single-chip microcomputer is connected to one end of the download interface, one end of the external crystal oscillator, and one end of the reset circuit, respectively.

[0046] Specifically, the main control circuit module includes a single-chip microcomputer, a download interface, an external crystal oscillator, and a reset circuit. Among them, the single-chip microcomputer serves as the control center of the entire device, responsible for coordinating and managing the work of each module. The download interface is used for program download and update, ensuring that the main control circuit module can receive new instructions and function updates. The external crystal oscillator provides a stable clock signal, ensuring the synchronous operation of the single-chip microcomputer and other circuit modules. The reset circuit can reset the system when an exception occurs, restoring it to the initial state. The single-chip microcomputer receives programs and instructions through the download interface, controlling the work of the photoelectric conversion module, the optical fiber transmission module, and the wireless transmission module. The external crystal oscillator provides accurate clock signals for the single-chip microcomputer, ensuring the synchronization of data processing and signal transmission. The reset circuit can quickly restore the system to a normal working state when a fault occurs.

[0047] As shown in Figure 3 , Figure 3 is a circuit principle diagram of the main control circuit module. The main control circuit module is a circuit design based on an STM32F103C8T6 microcontroller (MCU). The circuit components include: U13 (STM32F103C8T6 MCU) core control unit, responsible for the logic control and data processing of the entire system. VCC_MCU_3V3 provides 3.3V power for the MCU. Capacitors C2, C3, C4, and C5 are used for power filtering to ensure stable power supply. The reset circuit is connected to the MCU through the P6 pin for system reset. R25, R26, and C1 form a reset circuit to ensure that the MCU can be correctly reset when the system is powered on. The external crystal oscillator provides the system clock to ensure the operating frequency of the MCU. Capacitors C2 and C3 cooperate with the crystal oscillator to stabilize the clock signal. The download port is used for program download and debugging of the MCU, connected to the MCU through the P5 pin. The BOOT0 pin is connected through the P1 pin for selecting the startup mode of the MCU. VBAT (backup battery) is used as the power supply for the RTC (real-time clock) to ensure that the RTC can work normally when the main power is disconnected. The external crystal oscillator provides a higher precision clock signal for the RTC. VDDA (analog power supply) provides power for the analog part of the MCU. The SWD interface is used for debugging and programming of the MCU.

[0048] The MCU receives 3.3V power through the VCC_MCU_3V3 pin and starts working. The reset circuit ensures that the MCU can be correctly reset when powered on, avoiding abnormal startup caused by unstable power supply. The clock circuit provides a stable clock signal for the MCU to ensure that it operates at the predetermined frequency. The download port and SWD interface are used for program download and debugging of the MCU, facilitating development and maintenance. The BOOT0 pin is used to select the startup mode of the MCU, which can be normal startup or system boot mode. VBAT provides power for the RTC to ensure the continuity of time information. The external crystal oscillator provides a high-precision clock signal to improve the time accuracy of the system.

[0049] In this embodiment, the use of a microcontroller improves the control precision and stability of the entire fiber optic communication relay device, making signal processing and transmission more reliable. The download interface allows for easy updates and upgrades of the main control circuit module's program, enabling the system to adapt to constantly changing technological requirements and application scenarios. The stable clock signal provided by the external crystal oscillator ensures the synchronous operation of all modules in the system, avoiding communication errors caused by clock asynchrony. The presence of a reset circuit allows the system to recover quickly in abnormal situations, reducing system downtime and improving system reliability.

[0050] Furthermore, in some embodiments, the optical fiber communication relay device further includes a power circuit module connected to the main control circuit module. The power circuit module includes a lithium battery charging management unit and a 3.3V power supply unit. The first terminal of the 3.3V power supply unit is connected to the input voltage, the second terminal of the 3.3V power supply unit is connected to the lithium battery charging management unit, and the third and fourth terminals of the 3.3V power supply unit are respectively connected to the fourth and fifth terminals of the main control circuit module.

[0051] Specifically, the power supply circuit module includes a lithium battery charging management unit and a 3.3V power supply unit. The first terminal of the 3.3V power supply unit receives the input voltage (DC 5V), the second terminal connects to the lithium battery charging management unit, and the third and fourth terminals connect to the fourth and fifth terminals of the main control circuit module, respectively. The lithium battery charging management unit is responsible for charging and managing the lithium battery, ensuring a stable power supply.

[0052] When an external DC 5V input is available, the 3.3V power supply unit converts the 5V voltage to 3.3V to power the main control circuit module and other modules. Simultaneously, the 3.7V lithium battery is charged through the lithium battery charging management unit, ensuring that the lithium battery can continue to power the main control circuit module and other modules when no external power input is available. When the external DC 5V input disappears, the lithium battery voltage is boosted to 5V through the charge / discharge management unit, and then converted back to 3.3V by the 3.3V power supply unit to power the main control circuit module and other modules.

[0053] like Figure 4 As shown, Figure 4The circuit schematic diagram of the power supply circuit provided for the embodiment includes: U10 (power management IC), responsible for the management and distribution of power supply; the input end (VIN) receives power input from P1; the output end (VOUT) provides stable voltage to the subsequent circuit. P1 (power input interface) is marked as POWER IN, which is the interface of power input, and the power management is performed through TPS5430 (U10). P2 (backup power interface) is marked as BAT 3.7V, which is the interface of backup power, and the current is prevented from flowing from the backup power to the main power through the diode D1. S2 (switch) is a SW-SPST (single-pole single-throw switch) used to control the on-off of the circuit. C6 and C7 are input end capacitors with parameters of 100nF / 50V, used for filtering and reducing the noise of the power input end. U11 is a voltage converter that converts 5V voltage into 3.3V for the MCU, and the input end (Vin+) receives 5V output from U10, and the output end (Vout-) provides 3.3V voltage. C8 is the output end capacitor of C9 with parameters of 100nF / 50V, used for filtering and ensuring the stability of the output voltage. VCC5V_RELAY (relay power supply) provides 5V voltage for the relay. VCC_MCU_3V3 (MCU power supply) provides 3.3V voltage for the MCU.

[0054] When the power supply is input through the P1 interface, the U10 power management IC manages and distributes the voltage. If the main power supply is unavailable, the 3.7V backup power supply of the P2 interface can provide power for the circuit through the diode D1. The S2 switch is used to control the on-off of the entire circuit. The U11 voltage converter converts 5V voltage into 3.3V to meet the voltage requirements of the MCU. The C6, C7, C8, and C9 capacitors are used for filtering to ensure the stability of the power supply.

[0055] The embodiment ensures that the device can still operate stably in the case of unstable or interrupted external power supply, improves the power stability of the entire system, and enhances the continuous working ability of the system, especially in remote or difficult-to-access stable power supply areas. The addition of the solar energy storage module further reduces the dependence on external power supply, collects solar energy through the solar panel and converts it into electrical energy stored in the lithium battery, achieving energy self-sufficiency.

[0056] Further, in some embodiments, the optical fiber communication relay device further includes a wire core module connected with the master control circuit module, the wire core module including a wire core switching circuit and a wire core connection port, a first end of the wire core switching circuit being connected with a sixth end of the master control circuit module, a second end of the wire core switching circuit being connected with the wire core connection port, and a third end of the wire core switching circuit being connected with a fifth end of the 3.3V power supply unit.

[0057] Specifically, the wire core module includes a wire core switching circuit and a wire core connection port. The first end of the wire core switching circuit is connected to the sixth end of the main control circuit module, responsible for switching different wire core connection ports according to the control signal of the main control circuit module. The wire core connection port is used to connect different communication wire cores to realize signal transmission.

[0058] The main control circuit module selects the corresponding wire core connection port for signal transmission by controlling the path of the wire core switching circuit signal according to the communication demand. The wire core switching circuit dynamically switches to connect different wire cores according to the instructions of the main control circuit module to adapt to different communication scenarios and demands. The wire core connection port provides a physical connection point to ensure that signals can be transmitted from the optical fiber communication relay device to other devices in the power distribution automation system.

[0059] The design of the wire core module in this embodiment enables the optical fiber communication relay device to flexibly switch different communication wire cores, adapt to different communication demands and environments, and improves the adaptability and flexibility of the system. Through the wire core switching circuit, the system can quickly switch to a backup wire core when a wire core fails, ensuring the continuity and reliability of communication. The design of the wire core module makes it easier for maintenance personnel to identify and replace faulty wire cores, simplifying the maintenance and troubleshooting process. The wire core connection port provides stable physical connections, reducing signal loss and interference during transmission and improving signal transmission stability and quality. By integrating the wire core switching circuit, the number of external connection wires is reduced, reducing system complexity and reducing confusion and errors caused by excessive connection wires.

[0060] Further, in some embodiments, the optical fiber communication relay device further includes a rectifier voltage dividing circuit, an indication module, and a display screen connected to the main control circuit module respectively. The first end of the rectifier voltage dividing circuit is connected to the fourth end of the wire core switching circuit, and the second end of the rectifier voltage dividing circuit is connected to the seventh end of the main control circuit module. The indication module is connected to the eighth end of the main control circuit module. The display screen is connected to the ninth end of the main control circuit module.

[0061] Specifically, the first end of the rectifier voltage dividing circuit is connected to the fourth end of the wire core switching circuit, and the second end is connected to the seventh end of the main control circuit module, responsible for rectifying and dividing the input voltage to adapt to the working voltage requirements of the main control circuit module and other modules. The indication module is connected to the eighth end of the main control circuit module, used to provide device status indication such as power status, communication status, etc. The display screen is connected to the ninth end of the main control circuit module, used to display device running parameters, status information or fault diagnosis information.

[0062] The rectifier voltage dividing circuit converts the voltage of an external power source or a battery into a voltage suitable for the operation of the internal circuit of the device, ensuring the stability of the power supply and the safety of the circuit. The indication module displays the current state of the device, such as whether the power supply is normal, whether the communication is successful, etc., through LED lights or other indicators according to the control signal of the main control circuit module. The display screen displays more detailed operating parameters and status information, which is convenient for the operator to monitor the operation of the device and to diagnose faults.

[0063] The design of the rectifier voltage dividing circuit in this embodiment enables the device to adapt to different power inputs, improving the compatibility and stability of the power supply. The addition of the indication module and the display screen enables the operator to intuitively understand the running state of the device, enhancing the state monitoring capability. The display screen can provide detailed fault information, improving the efficiency and accuracy of fault diagnosis. Through the indication module and the display screen, users can interact with the device more easily, enhancing the user experience. The rectifier voltage dividing circuit ensures the stable supply of power, and the indication module and the display screen provide necessary status information, which helps to improve the reliability and safety of the system.

[0064] Further, in some embodiments, the device further comprises a solar energy storage module connected to the power circuit module, the solar energy storage module comprising a solar panel, an energy storage battery, and a charging controller, the first end of the solar panel being connected to the first end of the energy storage battery, the second end of the energy storage battery being connected to the first end of the charging controller, the third end of the energy storage battery being connected to the power circuit; the second end of the charging controller being connected to the tenth end of the main control circuit module.

[0065] Specifically, the solar energy storage module includes a solar panel, an energy storage battery, and a charging controller. The solar panel is responsible for collecting solar energy and converting it into electrical energy. The energy storage battery stores the electrical energy converted by the solar panel to provide a backup power source for the device. The charging controller controls the charging process of the solar panel to the energy storage battery to prevent overcharging and overdischarging, protecting the battery life. The first end of the solar panel is connected to the first end of the energy storage battery, forming an energy conversion and storage path. The second end of the energy storage battery is connected to the first end of the charging controller, and the second end of the charging controller is connected to the tenth end of the main control circuit module, realizing the monitoring and management of the battery charging state.

[0066] The solar panel works under sunlight conditions to convert solar energy into electrical energy, which is delivered to the energy storage battery through the connection end. The energy storage battery stores the received electrical energy for future use, such as providing power when there is not enough solar energy at night or on rainy days. The charging controller monitors the charging state of the energy storage battery and adjusts the charging strategy through the connection end of the main control circuit module to ensure the safety of the battery and extend its service life.

[0067] The solar energy storage module provided by the embodiment enables the optical fiber communication relay device to achieve energy self-sufficiency to a certain extent, reduces the dependence on external power supply, and in the case that the external power supply is unstable or unavailable, the energy storage battery can provide a backup power supply to ensure continuous operation of the device and enhance the stability and reliability of the system. The solar energy storage module enables the device to work in various environments, especially in remote areas or areas difficult to access the power grid, thereby improving the adaptability of the system.

[0068] Further, in some embodiments, the optical fiber communication relay device further comprises a relay drive circuit module connected with the master control circuit module, the first end of the relay drive circuit module is connected with the eleventh end of the master control circuit module, the second end of the relay drive circuit module is connected with a relay in the power distribution automation system, and the relay drive circuit module comprises a serial-to-parallel chip and a drive chip.

[0069] Specifically, the relay drive circuit module comprises a serial-to-parallel chip and a drive chip. The serial-to-parallel chip is responsible for converting the serial control signals of the master control circuit module into parallel signals. The drive chip receives the parallel signals of the serial-to-parallel chip and drives the relay to work. The first end of the relay drive circuit module is connected with the eleventh end of the master control circuit module for receiving control signals. The second end is connected with the relay in the power distribution automation system for driving the action of the relay according to the control signals. The master control circuit module generates signals for controlling the relay according to the needs of the power distribution automation system. These signals are input to the serial-to-parallel chip through the first end of the relay drive circuit module. The serial-to-parallel chip converts the serial signals into parallel signals to enhance the driving ability of the signals. The drive chip receives the parallel signals and drives the attraction or release of the relay according to the state of the signals, thereby controlling the circuit switch in the power distribution automation system.

[0070] The embodiment enhances the driving ability of the control signals through the signal conversion of the serial-to-parallel chip, improves the stability and reliability of the relay response, and isolates the master control circuit module and the high-voltage power distribution automation system to a certain extent, thereby protecting the master control circuit module from damage by external strong current. The use of the relay drive circuit module reduces the number of IO ports required for the master control circuit module to directly drive the relay, saves the IO resources of the single-chip microcomputer, and enables the single-chip microcomputer to handle more tasks. The addition of the drive chip makes the control of the relay more accurate, reduces the possibility of misoperation, and improves the safety of the entire power distribution automation system.

[0071] In order to facilitate the understanding of the technical solutions, the technical solutions are described in detail below with reference to the accompanying drawings. Figure 5As shown, the embodiment also provides an implementation of an optical fiber communication relay device, which includes a power supply circuit that receives a DC 5V input and is responsible for providing stable power supply for the entire system. The power supply circuit includes a lithium battery for powering the system when external power is unavailable. The main control circuit (STM32 single-chip microcomputer) serves as the core control unit of the system and is responsible for processing all logic and control tasks. It communicates with the display screen and wireless communication module through UART1 and UART2 interfaces. The display screen is used to display system status and information. The wireless communication module is responsible for implementing remote data transmission and reception. The keys and indicator lights serve as user input interfaces for controlling system functions. The indicator lights are used to display the working status of the system. The ADC (analog-to-digital converter) is used to convert analog signals to digital signals for processing by the main control circuit. The rectifier and voltage divider circuit converts the input AC power to DC power and adjusts it to the required voltage level. The wire core switching circuit is used to switch between different communication wire cores to adapt to different communication needs. The wire core interface is used to connect external communication wire cores.

[0072] The power supply circuit receives a DC 5V input and provides stable power supply for the system through a DC-DC converter, while charging the lithium battery. The main control circuit communicates with the display screen through the UART1 interface to display system status and information, and communicates with the wireless communication module through the UART2 interface to implement wireless data transmission. Users input control instructions through the keys, and the main control circuit executes corresponding operations according to the instructions and feeds back the system status through the indicator lights. The ADC module converts external analog signals to digital signals for processing by the main control circuit. The rectifier and voltage divider circuit converts the input AC power to DC power and adjusts it to the required voltage level to power the system. The wire core switching circuit switches between different communication wire cores according to the instructions of the main control circuit. The wire core interface is used to connect external communication wire cores to realize communication with external devices.

[0073] In summary, the optical fiber communication relay device provided in the embodiment comprises a master control circuit module, an optical-electric conversion module, an optical fiber transmission module and a wireless transmission module connected with the master control circuit module respectively, the first end of the optical-electric conversion module is connected with the power distribution automation equipment, the second end of the optical-electric conversion module is connected with the first end of the optical fiber transmission module, the second end of the optical fiber transmission module is connected with the first end of the wireless transmission module, and the second end of the wireless transmission module is connected with the power distribution automation system; the first end of the master control circuit module is connected with the third end of the optical-electric conversion module, the second end of the master control circuit module is connected with the third end of the optical fiber transmission module, and the third end of the master control circuit module is connected with the third end of the wireless transmission module. The communication relay structure based on optical fiber transmission provided in the embodiment can effectively avoid the problem that wireless signals are susceptible to interference, improve the stability and reliability of communication, reduce the failure of power supply caused by signal weakening, thereby improving the reliability of the power supply system and solving the problems of unstable wireless signals, frequent disconnection and communication in special environments in the power distribution automation system.

[0074] Correspondingly, the application further provides an optical fiber communication relay device, comprising the optical fiber communication relay device as above, and the device further comprises a device shell for packaging the optical fiber communication relay device, and the device shell is provided with a display screen, operation buttons and indicator lights on the surface thereof.

[0075] Specifically, the composition of the optical fiber communication relay device comprises the optical fiber communication relay device and the device shell for packaging the device, and the display screen, operation buttons and indicator lights on the surface of the shell. The device shell is used for packaging the optical fiber communication relay device to provide physical protection and environmental isolation. The display screen is connected with the master control circuit module and is used for displaying the working state, configuration information or other important parameters of the device. The operation buttons are connected with the master control circuit module and are used for user input, such as configuration setting, mode switching, etc. The indicator lights are connected with the indication module and are used for providing intuitive feedback of the state of the device, such as power state, communication state, etc.

[0076] The device shell is designed to accommodate all modules and provide sufficient space to ensure heat dissipation and the convenience of operation. The display screen, operation buttons and indicator lights are integrated on the surface of the device shell, which is convenient for user operation and state monitoring. When the user inputs instructions through the operation buttons, the master control circuit module processes these instructions and adjusts the working state of the device according to the instructions. The working state of the device is displayed to the user through the display screen, and the indicator lights provide immediate state indication according to the signal change of the master control circuit module.

[0077] As Figure 6As shown, the composition of the optical fiber communication relay device includes a display screen located in the central position of the front of the device, which is used to display system status, parameters and fault information, etc. The keys, there are five round keys on the right side of the front of the device, which are used for user input and control. The keys are used for navigation menu, selection options, confirmation operation or reset system. The indicator light, there is a small round indicator light below the right side of the front of the device, which is used to display the working status of the device, such as power status, communication status or fault warning. The mounting hole, there are mounting holes in the four corners of the front of the device and the four corners of the display screen, which are used to fix the device on the mounting plate. The shell, the shell of the device adopts waterproof and dustproof design with protection level not less than IP65, to adapt to various harsh environments. The back of the device can be equipped with wiring terminals for connecting power supply, communication cable and other external devices.

[0078] The display screen, operation keys and indicator light integrated in the shell of the device provide an intuitive user interface, allowing users to easily operate the device and monitor its status. The integrated design of operation keys and display screen allows users to configure and monitor without additional tools or complex steps, improving the convenience of operation. The device shell provides physical protection for internal components, protecting them from external environmental factors such as dust, moisture and other potential damage factors. The integrated indicator light and display screen allow maintenance personnel to quickly diagnose problems and take appropriate maintenance measures, improving maintenance efficiency. The design of the device shell can prevent unauthorized access and misuse, while protecting the internal circuit from external physical damage, improving overall security.

[0079] That is, the above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings of the present application, such as the mutual combination of technical features between embodiments, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

[0080] In addition, for structural elements with the same or similar characteristics, the same or different labels can be used to identify them. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0081] In this application, the word "for example" is used to mean "used as an example, illustration, or explanation." Any embodiment described as "for example" in this application is not necessarily to be construed as more preferred or advantageous than other embodiments. This application has been provided above to enable any person skilled in the art to make and use it. Various details are set forth in the above description for purposes of explanation.

[0082] It should be understood that those skilled in the art will recognize that this application can be implemented without using these specific details. In other embodiments, well-known structures and processes will not be described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed herein.

Claims

1. A fiber optic communication relay device, characterized in that, The system includes a main control circuit module, and a photoelectric conversion module, an optical fiber transmission module, and a wireless transmission module, which are respectively connected to the main control circuit module. The first end of the photoelectric conversion module is connected to the power distribution automation equipment, the second end of the photoelectric conversion module is connected to the first end of the optical fiber transmission module, the second end of the optical fiber transmission module is connected to the first end of the wireless transmission module, and the second end of the wireless transmission module is connected to the power distribution automation system. The first end of the main control circuit module is connected to the third end of the photoelectric conversion module, the second end of the main control circuit module is connected to the third end of the optical fiber transmission module, and the third end of the main control circuit module is connected to the third end of the wireless transmission module.

2. The optical fiber communication relay device according to claim 1, characterized in that, The photoelectric conversion module includes a light source, a driving circuit, and an optical interface. The first end of the light source is connected to the power distribution automation equipment, the second end of the light source is connected to the first end of the driving circuit, the second end of the driving circuit is connected to the first end of the optical interface, the second end of the optical interface is connected to the first end of the optical fiber transmission module, and the third end of the driving circuit is connected to the third end of the main control circuit module.

3. The optical fiber communication relay device according to claim 2, characterized in that, The optical fiber transmission module includes an optical fiber and an optical fiber interface. One end of the optical fiber is connected to the second end of the optical interface, and the other end of the optical fiber is connected to one end of the optical fiber interface. The other end of the optical fiber interface is connected to the first end of the wireless transmission module.

4. The optical fiber communication relay device according to claim 1, characterized in that, The main control circuit module includes a microcontroller, a download interface, an external crystal oscillator, and a reset circuit. The microcontroller is connected to one end of the download interface, one end of the external crystal oscillator, and one end of the reset circuit.

5. The optical fiber communication relay device according to claim 1, characterized in that, The device further includes a power circuit module connected to the main control circuit module. The power circuit module includes a lithium battery charging management unit and a 3.3V power supply unit. The first terminal of the 3.3V power supply unit is connected to the input voltage. The second terminal of the 3.3V power supply unit is connected to the lithium battery charging management unit. The third and fourth terminals of the 3.3V power supply unit are respectively connected to the fourth and fifth terminals of the main control circuit module.

6. The optical fiber communication relay device according to claim 5, characterized in that, The device also includes a core module connected to the main control circuit module. The core module includes a core switching circuit and a core connection port. The first end of the core switching circuit is connected to the sixth end of the main control circuit module, the second end of the core switching circuit is connected to the core connection port, and the third end of the core switching circuit is connected to the fifth end of the 3.3V power supply unit.

7. The optical fiber communication relay device according to claim 6, characterized in that, The device further includes a rectifier voltage divider circuit, an indicator module, and a display screen, all connected to the main control circuit module. The first end of the rectifier voltage divider circuit is connected to the fourth end of the wire core switching circuit, the second end of the rectifier voltage divider circuit is connected to the seventh end of the main control circuit module, the indicator module is connected to the eighth end of the main control circuit module, and the display screen is connected to the ninth end of the main control circuit module.

8. The optical fiber communication relay device according to claim 5, characterized in that, The device further includes a solar energy storage module connected to the power circuit module. The solar energy storage module includes a solar panel, an energy storage battery, and a charging controller. The first end of the solar panel is connected to the first end of the energy storage battery, the second end of the energy storage battery is connected to the first end of the charging controller, and the third end of the energy storage battery is connected to the power circuit. The second end of the charging controller is connected to the tenth end of the main control circuit module.

9. The optical fiber communication relay device according to claim 5, characterized in that, The device further includes a relay drive circuit module connected to the main control circuit module. The first end of the relay drive circuit module is connected to the eleventh end of the main control circuit module, and the second end of the relay drive circuit module is connected to a relay in the power distribution automation system. The relay drive circuit module includes a series-to-parallel conversion chip and a drive chip.

10. A fiber optic communication relay device, characterized in that, The device includes the optical fiber communication relay device as described in any one of claims 1-9, and the device further includes a housing for encapsulating the optical fiber communication relay device, the surface of which is provided with a display screen, operation buttons and indicator lights.

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