Solar power supply and multistage protection system for optical fiber demodulator

Abstract

The utility model discloses a solar power supply and multi-stage protection system for an optical fiber demodulator, which comprises a solar cell, a solar controller, a storage battery, a voltage-stabilized power supply, a surge protection module and an optical fiber demodulator, and is characterized in that the solar controller is connected with the solar cell and the storage battery to control the storage of electric energy and output load voltage; the voltage-stabilized power supply is connected with the solar controller and the optical fiber demodulator so as to carry out voltage stabilization to generate power supply voltage required by the optical fiber demodulator, and the surge protection module is connected with the solar cell and ground voltage. The solar power supply and multistage protection system for the optical fiber demodulator can realize stable and continuous autonomous power supply for the optical fiber demodulator, and is generally suitable for various field unattended working places. The solar controller can realize remote monitoring, and the power supply fault of the system can be diagnosed remotely without the presence of personnel.

Description

Technical Field

[0001] This utility model belongs to the field of optical fiber demodulation system technology, specifically relating to a solar power supply and multi-level protection system for an optical fiber demodulator. Background Technology

[0002] Fiber optic sensing technology utilizes optical fiber as the sensing medium. By measuring changes in parameters such as light intensity, phase, polarization, and wavelength as light propagates through the fiber, it can measure physical or chemical quantities such as temperature, pressure, strain, vibration, and chemical composition. In its operation, an optical signal is first sent into the fiber via a light source (such as a laser diode). This optical signal carries the information to be transmitted as it propagates through the fiber. Then, a demodulator receives the optical signal and extracts the original information from the received signal.

[0003] In practical applications, optical fiber materials often need to be directly attached to or buried in outdoor engineering sites, while the optical fiber demodulator is placed in a relatively distant monitoring room. The optical fiber needs to be pulled from the engineering site back to the monitoring point, and to protect the fiber, it also needs to be buried underground, increasing the workload. If the optical fiber demodulator is placed directly near the engineering site, it is difficult to guarantee a stable power supply so that the optical fiber demodulator can operate stably in various outdoor climatic conditions.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a solar power supply and multi-level protection system for an optical fiber demodulator, which can achieve stable and continuous autonomous power supply.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A solar power supply and multi-level protection system for an optical fiber demodulator includes a solar cell, a solar controller, a battery, a voltage regulator, a surge protection module, and an optical fiber demodulator. The solar controller is connected to the solar cell and the battery to control the storage of electrical energy and the output load voltage. The voltage regulator is connected to the solar controller and the optical fiber demodulator to regulate the load voltage and generate the power supply voltage required by the optical fiber demodulator. The surge protection module is connected to the solar cell and ground voltage.

[0008] In one or more embodiments of this utility model, the surge protection module includes a first protection unit and a second protection unit. The first end of the first protection unit is connected to the anode of the solar cell, the first end of the second protection unit is connected to the cathode of the solar cell, and the second ends of the first protection unit and the second protection unit are connected to ground voltage.

[0009] In one or more embodiments of this utility model, the first protection unit includes a first varistor, a first terminal of which is connected to the anode of the solar cell, and a second terminal of which is connected to ground; and / or

[0010] The second protection unit includes a second varistor, the first end of which is connected to the cathode of the solar cell, and the second end of which is connected to ground voltage.

[0011] In one or more embodiments of the present invention, the surge protection module further includes a third protection unit, the first end of the third protection unit being connected to the second end of the first protection unit and the second end of the second protection unit, and the second end of the third protection unit being connected to ground voltage.

[0012] In one or more embodiments of this utility model, the third protection unit includes a third varistor, the first end of which is connected to the second end of the first protection unit and the second end of the second protection unit, and the second end of which is connected to ground voltage.

[0013] In one or more embodiments of the present invention, the fiber optic demodulation system further includes a wireless communication module connected to at least one fiber optic demodulator.

[0014] In one or more embodiments of this utility model, the storage battery includes a gel battery.

[0015] In one or more embodiments of this utility model, the solar cell includes a monocrystalline silicon cell.

[0016] In one or more embodiments of this utility model, the fiber optic demodulator includes a fiber grating demodulator and / or a distributed fiber optic demodulator.

[0017] In one or more embodiments of this utility model, the solar controller includes an MPPT controller, and the solar controller is communicatively connected to an external device for data interaction.

[0018] Compared with existing technologies, this utility model provides a solar power supply and multi-level protection system for a fiber optic demodulator, enabling stable and continuous autonomous power supply to the demodulator and making it widely adaptable to various unattended outdoor workplaces. The solar controller allows for remote monitoring, enabling remote diagnosis of power supply faults without on-site personnel. A regulated power supply provides a stable voltage to the demodulator, improving system reliability. A surge protection module protects against induced lightning strikes, direct lightning strikes, or other transient overvoltage surges, enhancing system safety and reducing the impact of overcurrent, undervoltage, lightning, and other abnormal conditions. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a system structure diagram of a solar power supply and multi-level protection system for an optical fiber demodulator according to one embodiment of the present invention. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0022] The terms "coupled," "connected," or "linked" in this specification include both direct and indirect connections. Indirect connections are those made through an intermediate medium, such as those made through an electrically conductive medium, which may have parasitic inductance or capacitance. Indirect connections may also include connections made through other active or passive devices to achieve the same or similar functional purpose, such as connections through switches, follower circuits, or other circuits or components. Furthermore, in this specification, terms such as "first" and "second" are primarily used to distinguish one technical feature from another, and do not necessarily require or imply any actual relationship, quantity, or order between these technical features.

[0023] In the detailed description of this specification, reference is made to the accompanying drawings, which form a part thereof, wherein like reference numerals always denote like parts, and wherein exemplary embodiments are shown by way of example that may be implemented. It should be understood that other embodiments may be utilized, and structural or logical changes may be made, without departing from the scope of this application. Therefore, the following detailed description should not be considered limiting.

[0024] The various operations in the specification may be described sequentially as multiple discrete actions or operations in a manner most conducive to understanding the claimed subject matter. However, the order of description should not be construed as implying that these operations must be sequentially related. Specifically, these operations may not be performed in the order presented. The described operations may be performed in a different order than in the described embodiments. Various additional operations may be performed in additional embodiments and / or the described operations may be omitted.

[0025] For the purposes of this application, the phrase "A and / or B" means (A), (B), or (A and B). For the purposes of this application, the phrase "A, B and / or C" means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B and C).

[0026] Various components and devices may be mentioned or shown in the singular form herein, but only for the convenience of discussion, and any element mentioned in the singular form may include multiple such elements as taught herein.

[0027] The description uses the phrases "in one embodiment," "in other embodiments," or "in some embodiments," each of which may refer to one or more of the same or different embodiments. Furthermore, the terms "comprising," "including," "having," etc., used in relation to embodiments of this application are synonymous.

[0028] like Figure 1 As shown, a solar power supply and multi-level protection system for an optical fiber demodulator according to one embodiment of the present invention includes a solar cell 10, a solar controller 20, a storage battery 30, a regulated power supply 40, an optical fiber demodulator, a splitter 50, a wireless communication module 60, and a surge protection module 70.

[0029] In this configuration, the anode input terminal Pv+ ​​of the solar controller 20 is connected to the anode of the solar cell 10, the cathode input terminal Pv- of the solar controller 20 is connected to the cathode of the solar cell 10, the anode battery output terminal Ba+ of the solar controller 20 is connected to the anode of the storage battery 30, the cathode battery output terminal Ba- of the solar controller 20 is connected to the cathode of the storage battery 30, the anode load output terminal Load+ of the solar controller 20 is connected to the anode input terminal VI+ of the regulated power supply 40, and the cathode load output terminal Load- of the solar controller 20 is connected to the cathode input terminal VI- of the regulated power supply 40. The solar controller 20 is used to control the storage of electrical energy and output the load voltage through its own anode load output terminal Load+ and cathode load output terminal Load-.

[0030] Preferably, the solar cell 10 includes a monocrystalline silicon cell, which has high charging efficiency, durability, lifespan and low overall cost.

[0031] Preferably, the storage battery 30 includes a gel battery. Gel batteries are characterized by shock resistance, wide temperature range, small size, and low self-discharge. Their service life is generally twice that of ordinary storage batteries 30, and their price is only 35% of that of lithium iron phosphate batteries.

[0032] In one embodiment, the solar controller 20 includes an MPPT controller, and the solar controller 20 is communicatively connected to an external device for data interaction.

[0033] Preferably, the solar controller 20 is model MPPT12V24V20. The solar controller 20 adopts MPPT maximum power point tracking technology to achieve maximum energy tracking of the solar cell 10, enabling it to quickly and accurately track the maximum power point of the solar cell 10 in any environment, obtain the maximum energy of the solar cell 10 in real time, significantly improve the energy utilization rate of the solar system, and manage the output of the solar cell 10, the battery 30, and the load voltage.

[0034] The solar controller 20 has comprehensive software and hardware fault detection and protection functions. It has a built-in 4G module that can interconnect with a remote management platform, enabling remote monitoring of various parameters including solar voltage and current, battery voltage and power, load voltage and current, cumulative power consumption, and equipment temperature. It supports real-time monitoring of equipment status, receiving fault alarm information, remote load switching, and remote restarting of power to restore equipment operation in case of failure. System monitoring, diagnosis, and recovery can be completed without on-site personnel, minimizing damage to components caused by installation errors, system failures, or harsh environments.

[0035] like Figure 1As shown, the surge protection module 70 is connected to the anode of the solar cell 10, the cathode of the solar cell 10, and ground voltage. The surge protection module 70 can protect against surges caused by induced lightning, direct lightning strikes, or other transient overvoltages.

[0036] In one embodiment, the surge protection module 70 includes a first protection unit, a second protection unit, and a third protection unit. The first end of the first protection unit is connected to the anode of the solar cell 10, the first end of the second protection unit is connected to the cathode of the solar cell 10, the second ends of the first protection unit and the second end of the second protection unit are connected to the first end of the third protection unit, and the second end of the third protection unit is connected to the ground voltage.

[0037] Preferably, the first protection unit includes a first varistor Rv1, the first end of which is connected to the anode of the solar cell 10, and the second end of which is connected to the first end of the third protection unit.

[0038] Preferably, the second protection unit includes a second varistor Rv2, the first end of which is connected to the cathode of the solar cell 10, and the second end of which is connected to the first end of the third protection unit.

[0039] Preferably, the third protection unit includes a third varistor Rv3, the first end of the third varistor Rv3 is connected to the second end of the first varistor Rv1 and the second end of the second varistor Rv2, and the second end of the third varistor Rv3 is connected to the ground voltage.

[0040] In other embodiments, the third protection unit may be omitted, and the second terminals of the first and second protection units may be directly connected to ground. One or more of the first varistor Rv1, the second varistor Rv2, and the third varistor Rv3 may also be replaced with an avalanche diode or other devices.

[0041] like Figure 1 As shown, the anode output terminal VO+ of the regulated power supply 40 is connected to the anode input terminal IN+ of the splitter 50, and the cathode output terminal VO- of the regulated power supply 40 is connected to the cathode input terminal IN- of the splitter 50. The regulated power supply 40 is used to regulate the load voltage to generate the power supply voltage required by the fiber optic demodulator.

[0042] In one embodiment, the regulated power supply 40 is a DC regulated power supply. Preferably, the regulated power supply 40 is a DDR-60L-24 model, which can provide overload, overvoltage, undervoltage, and reverse connection protection, and meets safety regulations and electromagnetic compatibility. Since the load voltage output by the solar controller 20 is unstable, it may affect the normal operation of the fiber optic demodulator, which is sensitive to voltage fluctuations. Stabilizing the load voltage through the regulated power supply 40 can improve the reliability of the fiber optic demodulation system.

[0043] In one embodiment, multiple fiber optic demodulators are provided. Specifically, two fiber optic demodulators are provided, namely a fiber grating demodulator 81 and a distributed fiber optic demodulator 82.

[0044] The first anode output terminal O1+ and the first cathode output terminal O1- of the splitter 50 are connected to the fiber Bragg grating demodulator 81, and the second anode output terminal O2+ and the second cathode output terminal O2- of the splitter 50 are connected to the distributed fiber optic demodulator 82. The splitter 50 divides the power supply voltage into two paths and outputs them to the fiber Bragg grating demodulator 81 and the distributed fiber optic demodulator 82, respectively.

[0045] The fiber optic grating demodulator 81 and the distributed fiber optic demodulator 82 can be connected to the fiber optic sensor at the point of measurement to measure physical or chemical quantities such as temperature, pressure, strain, vibration, and chemical composition using fiber optic demodulation technology. Powered by solar energy, the fiber optic demodulator can be directly installed near the point of measurement without the need for manual monitoring.

[0046] In other embodiments, one or more fiber optic demodulators may be provided, and the fiber optic demodulators may include fiber Bragg grating demodulators and / or distributed fiber optic demodulators.

[0047] In other embodiments, the splitter 50 may be omitted, and the fiber optic demodulator may be directly connected to the anode output terminal VO+ and the cathode output terminal VO- of the regulated power supply 40 to receive the power supply voltage.

[0048] like Figure 1 As shown, the wireless communication module 60 is connected to the distributed optical fiber demodulator 82. The wireless communication module 60 is used to control the external wireless communication of the distributed optical fiber demodulator 82, so that the outside world can remotely monitor and send and receive data on the distributed optical fiber demodulator 82.

[0049] In other embodiments, the wireless communication module 60 can also be connected to the fiber Bragg grating demodulator 81 and control its external wireless communication. Alternatively, the wireless communication module 60 can be connected to both the fiber Bragg grating demodulator 81 and the distributed fiber Bragg demodulator 82, and control their external wireless communication. The wireless communication module 60 only needs to be connected to at least one fiber Bragg demodulator. Alternatively, the wireless communication module 60 can be omitted, and the fiber Bragg demodulator can achieve remote monitoring and communication through its built-in wireless module. The wireless communication module 60 can obtain the power supply voltage from the fiber Bragg demodulator. Alternatively, the wireless communication module 60 can be directly connected to the anode output terminal VO+ and cathode output terminal VO- of the regulated power supply 40, or connected to the anode output terminal VO+ and cathode output terminal VO- of the regulated power supply 40 through the splitter 50 to obtain the power supply voltage.

[0050] In practical applications, the solar power supply and multi-level protection system for the fiber optic demodulator in this solution can achieve stable and continuous autonomous power supply, making it widely adaptable to various unattended outdoor workplaces. Through reasonable battery configuration and energy storage technology, the system ensures continuous power supply even in the absence of sunlight. The introduction of a solar controller 20 allows for remote monitoring of power generation, stored energy, and load power consumption, enabling remote diagnosis of power supply faults without on-site personnel. A voltage regulator 40 provides a stable power voltage to the fiber optic demodulator, improving system reliability. A surge protection module 70 protects against induced lightning strikes, direct lightning strikes, or other transient overvoltage surges, enhancing system safety and reducing the impact of overcurrent, undervoltage, lightning, and other abnormal conditions on the system.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A solar-powered and multi-level protection system for an optical fiber demodulator, characterized in that, The device includes a solar cell, a solar controller, a storage battery, a voltage regulator, a surge protection module, and a fiber optic demodulator. The solar controller is connected to the solar cell and the storage battery to control the storage of electrical energy and the output load voltage. The voltage regulator is connected to the solar controller and the fiber optic demodulator to regulate the load voltage and generate the power supply voltage required by the fiber optic demodulator. The surge protection module is connected to the solar cell and ground voltage.

2. The solar powered and multi-level protected system for a fiber optic demodulator of claim 1, wherein, The surge protection module includes a first protection unit and a second protection unit. The first end of the first protection unit is connected to the anode of the solar cell, the first end of the second protection unit is connected to the cathode of the solar cell, and the second ends of the first protection unit and the second protection unit are connected to ground voltage.

3. The solar powered and multi-level protected system for a fiber optic demodulator of claim 2, wherein, The first protection unit includes a first varistor, a first terminal of which is connected to the anode of the solar cell, and a second terminal of which is connected to ground; and / or The second protection unit includes a second varistor, the first end of which is connected to the cathode of the solar cell, and the second end of which is connected to ground voltage.

4. The solar power supply and multi-level protection system for an optical fiber demodulator according to claim 2, characterized in that, The surge protection module also includes a third protection unit, the first end of which is connected to the second end of the first protection unit and the second end of the second protection unit, and the second end of the third protection unit is connected to the ground voltage.

5. The solar powered and multi-level protected system for a fiber optic demodulator of claim 4, wherein, The third protection unit includes a third varistor. The first end of the third varistor is connected to the second end of the first protection unit and the second end of the second protection unit. The second end of the third varistor is connected to the ground voltage.

6. The solar powered and multi-level protected system for a fiber optic demodulator of claim 1, wherein, The fiber optic demodulation system also includes a wireless communication module connected to at least one fiber optic demodulator.

7. The solar powered and multi-level protected system for a fiber optic demodulator of claim 1, wherein, The battery includes a gel battery.

8. The solar power supply and multi-level protection system for an optical fiber demodulator according to claim 1, characterized in that, The solar cells include monocrystalline silicon cells.

9. The solar powered and multi-level protected system for a fiber optic demodulator of claim 1, wherein, The fiber optic demodulator includes a fiber grating demodulator and / or a distributed fiber optic demodulator.

10. The solar powered and multi-level protected system for a fiber optic demodulator of claim 1, wherein, The solar controller includes an MPPT controller, which communicates with external devices to exchange data.

Images