Energy and information co-transmission system based on photo-thermal electricity

Abstract

The invention provides an energy and signal co-transmission system based on photo-thermal electricity, the system comprises a plurality of lasers, a composite optical cable and a sensing and monitoring integrated module, the composite optical cable comprises a multimode optical fiber and a single-mode optical fiber, and the sensing and monitoring integrated module comprises a photo-thermal composite battery, an energy management unit and a sensing monitor which are connected in sequence; the plurality of lasers emit laser signals of a plurality of near-infrared bands, and the plurality of laser signals are transmitted to the photo-thermal composite battery through the multimode optical fiber; the photo-thermal composite battery converts a plurality of received laser signals into electric energy, collects waste heat generated in the energy conversion process and converts the collected waste heat into electric energy, and all the electric energy output by the photo-thermal composite battery is stored through the energy management unit to supply power to the sensing monitor; monitoring control information sent by a user side is transmitted to the sensing monitor through the single-mode optical fiber, and the sensing monitor collects monitoring information based on the monitoring control information and transmits the monitoring information to the user side through the single-mode optical fiber.

Description

Technical Field

[0001] The present invention relates to the field of energy supply and communication technology, and in particular to a photothermal and electrical energy and communication co-transmission system. Background Art

[0002] Today, security monitoring requirements for various venues are becoming increasingly stringent. The demand for digital automatic monitoring equipment and confidential information transmission in these venues is increasing, and the need to build digital security monitoring and management systems tailored to different situations is becoming more urgent. In existing security monitoring scenarios, most use traditional power lines to power application devices or equipment and use wireless transmission of video signals. However, this power supply method and communication mode have certain limitations: 1) The cross-sectional area of ​​the cable used for energy supply is large. When the required length is long, the overall weight of the cable is large, which makes it difficult to transport and maintain the cable, and the power supply efficiency is low; 2) The use of wireless communication to transmit information has problems such as insufficient security and reliability, and low transmission rate, resulting in higher overall system latency and a higher risk of data theft. Summary of the Invention

[0003] In view of this, an embodiment of the present invention provides an energy and signal transmission system based on photothermal power to eliminate or improve one or more defects in the prior art.

[0004] One aspect of the present invention provides a photothermal-electrical energy and signal transmission system, comprising: multiple lasers, a composite optical cable, and a sensor-monitoring integrated module, wherein the composite optical cable comprises a multimode optical fiber and a single-mode optical fiber, and the sensor-monitoring integrated module comprises a photothermal composite battery, an energy management unit, and a sensor-monitoring integrated module connected in sequence; The multiple lasers emit multiple laser signals in the near-infrared band, and transmit the multiple laser signals to the photothermal composite battery through the multimode optical fiber; The photothermal composite cell converts the received multiple laser signals into electrical energy, collects waste heat generated during the energy conversion process and converts the collected waste heat into electrical energy, stores all the electrical energy output by the photothermal composite cell through the energy management unit, and supplies power to the sensor monitor; The monitoring control information sent by the user end is transmitted to the sensor monitor via the single-mode optical fiber. The sensor monitor collects monitoring information based on the monitoring control information and transmits the monitoring information to the user end via the single-mode optical fiber to realize two-way transmission of information between the user end and the sensor monitor.

[0005] In some embodiments of the present invention, the photothermal composite cell includes a photovoltaic cell and a thermoelectric module integrated on the photovoltaic cell, wherein the photovoltaic cell includes a multi-junction narrow-bandwidth photovoltaic cell, and the photovoltaic cell converts multiple received laser signals into electrical energy; the thermoelectric module uses thermoelectric-based semiconductor materials and combines micro-heat pipe technology to optimize heat conduction to collect waste heat generated during the energy conversion process, and uses the Seebeck effect to convert the collected waste heat into electrical energy.

[0006] In some embodiments of the present invention, the system further comprises a wavelength division multiplexer, which couples laser signals in a plurality of near-infrared bands and transmits the coupled laser signals through the multimode optical fiber.

[0007] In some embodiments of the present invention, the sensor monitoring integrated module further includes a first optical fiber transceiver, which receives an optical signal of monitoring control information from a user end transmitted by the single-mode optical fiber and converts the optical signal into an electrical signal, and transmits the electrical signal to the sensor monitor, so that the sensor monitor performs corresponding actions according to the monitoring control information to collect monitoring information; The first optical fiber transceiver also receives an electrical signal of monitoring information from the sensor monitor and converts the electrical signal into an optical signal, and transmits the optical signal to the user end through the single-mode optical fiber to provide the user end with the monitoring information.

[0008] In some embodiments of the present invention, the system further comprises a second optical fiber transceiver, which receives an electrical signal of monitoring control information from a user end and converts the electrical signal into an optical signal, and transmits the optical signal to the sensor monitor via the single-mode optical fiber, so that the sensor monitor performs corresponding actions according to the monitoring control information to collect monitoring information; The second optical fiber transceiver also receives the optical signal of the monitoring information from the sensor monitor transmitted by the single-mode optical fiber and converts the optical signal into an electrical signal, and transmits the electrical signal to the user end to provide the user end with the monitoring information.

[0009] In some embodiments of the present invention, the monitoring control information includes the type of monitoring information required to be collected and control instructions for the monitoring information, the monitoring information includes an image of the monitoring target, equipment operating parameters and environmental parameters, and the environmental parameters include temperature and humidity; In a case where the monitoring information includes an image containing a monitoring target, the sensor monitor collects the monitoring information based on the monitoring control information, including: The sensor monitor performs semantic parsing based on the control instruction requiring the collection of image type monitoring information and the monitoring target, and obtains the parsed control instruction, wherein the parsed control instruction includes the monitoring target and the image type; Based on the parsed control instructions, an initial image containing the monitored target is collected, and a target detection model is used to perform target detection on the initial image to obtain a predicted position of the monitored target; The semantic segmentation model is used to segment the detected monitoring target based on the predicted position to obtain the predicted contour information. The occlusion ratio of the monitoring target is determined based on the similarity and pixel coverage ratio between the predicted contour information and the preset complete contour information of the monitoring target. If the occlusion ratio is greater than a first threshold, adjusting the direction of the image acquisition module in the sensor monitor until the occlusion ratio is less than the first threshold, outputting a corresponding image and using the image as a target image; The target image is encoded into a digital signal, so as to transmit the digital signal to a user end through the single-mode optical fiber.

[0010] In some embodiments of the present invention, the monitoring information carries user address information, and the monitoring information is transmitted to the user corresponding to the address information via the single-mode optical fiber.

[0011] In some embodiments of the present invention, the near-infrared band ranges from 1500 to 1550 nm, and the optical signal of the monitoring information or the monitoring control information includes an optical signal in the 1310 nm band.

[0012] In some embodiments of the present invention, the energy management unit outputs no less than 14.4-19.2W of electrical energy.

[0013] In some embodiments of the present invention, one end of the multimode optical fiber is connected to the pigtail of each laser by optical fiber fusion splicing; the multimode optical fiber includes a 62.5 / 125 μm multimode optical fiber, and the single-mode optical fiber includes a 9 / 125 μm single-mode optical fiber.

[0014] The energy and information transmission system based on photothermal power of the present invention can significantly improve the energy conversion efficiency through photothermal composite batteries, realize the efficient multi-level energy utilization of photothermal power, and realize the bidirectional synchronous transmission of high-power and high-density energy and information through an optical cable composed of multimode optical fiber and single-mode optical fiber. The energy emitted by the laser is transmitted to the monitoring terminal using multimode optical fiber as the energy transmission medium to achieve high-efficiency power supply, and the bidirectional transmission of data is achieved using single-mode optical fiber wired transmission. This design not only lightweights the traditional energy transmission line, but also optimizes the wireless transmission line, improves the link tensile strength and data transmission rate, and reduces the system delay. The system can simultaneously overcome the limitations of the power supply and communication methods in the existing technology, and solve the problems of difficult cable transportation and maintenance, low data transmission rate, safety risks, and low power supply efficiency in energy supply and information transmission.

[0015] Additional advantages, objects, and features of the present invention will be set forth in part in the following description and will become apparent to those skilled in the art upon examination of the following or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained by the structures particularly pointed out in the description and drawings.

[0016] Those skilled in the art will understand that the purposes and advantages that can be achieved by the present invention are not limited to the above specific descriptions, and the above and other purposes that can be achieved by the present invention will be more clearly understood based on the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute a limitation of the present invention.

[0018] Figure 1 This is a structural diagram of an energy and signal transmission system based on photothermal power in one embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0020] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, the accompanying drawings only show structures and / or processing steps closely related to the solutions according to the present invention, while other details that are not closely related to the present invention are omitted.

[0021] It should be emphasized that the term "include / comprises" when used herein refers to the existence of features, elements, steps or components, but does not exclude the existence or addition of one or more other features, elements, steps or components.

[0022] It should also be noted that, unless otherwise specified, the term "connection" herein may refer not only to a direct connection but also to an indirect connection involving an intermediate.

[0023] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0024] Figure 1 FIG. 1 is a schematic diagram of the structure of an energy and signal transmission system based on photothermal power in one embodiment of the present invention. Figure 1As shown, the system includes: multiple lasers, a composite optical cable, and a sensor monitoring integrated module. The composite optical cable includes a multimode optical fiber and a single-mode optical fiber. The sensor monitoring integrated module includes a photothermal composite battery, an energy management unit, and a sensor monitor connected in sequence. The multiple lasers emit multiple near-infrared laser signals, which are transmitted to the photothermal composite battery via the multimode optical fiber. The photothermal composite battery converts the received laser signals into electrical energy, collects waste heat generated during the energy conversion process, and converts the collected waste heat into electrical energy. The energy management unit stores all electrical energy output by the photothermal composite battery and powers the sensor monitor. Monitoring and control information sent by the user end is transmitted to the sensor monitor via the single-mode optical fiber. The sensor monitor collects monitoring information based on the monitoring and control information and transmits the monitoring information to the user end via the single-mode optical fiber, thereby achieving two-way information transmission between the user end and the sensor monitor.

[0025] Specifically, the range of the near-infrared band is 1500-1550nm. In some embodiments, each laser is connected to a multimode optical fiber, and each multimode optical fiber transmits a high-power laser signal in the near-infrared band emitted by a laser. There is one single-mode optical fiber used to realize two-way communication between the user end and the monitoring end. In this embodiment, multiple multimode optical fibers and single-mode optical fibers are combined into a composite optical cable, which can greatly save line space. One end of each multimode optical fiber is connected to the pigtail of each laser by optical fiber fusion splicing, which can avoid the fiber fusion phenomenon of high-power lasers. The photothermal composite battery can efficiently convert the high-power light energy emitted by the laser into electrical energy, and effectively recover the waste heat generated in the energy conversion process, and also convert the waste heat into electrical energy, thereby realizing efficient utilization of multi-level energy and improving power supply efficiency. However, if the photovoltaic composite battery is directly connected to the load and terminal that needs to be powered, it will seriously affect the output performance of the photovoltaic composite battery, causing the output power of the photovoltaic composite battery to decrease. Therefore, it is necessary to add an energy management unit between the photovoltaic composite battery and the terminal or load. The energy management unit can not only match the maximum output power point of the photovoltaic composite battery, but also effectively meet the power requirements of the terminal and load (electrical appliances, such as monitors, etc.).

[0026] The combination of the above-mentioned energy-communication co-transmission and photothermal-electric conversion technologies not only meets the power needs of monitoring terminal equipment, but also significantly reduces the overall weight and space of the power supply system compared to the original method of using thick and heavy cables. It can reduce the operating costs of equipment such as optical cables and increase the overall length of the line. The entire system performs two-way communication far better than wireless communication fiber-optic communication technology, which can ensure the reliability and security of data transmission and communication, greatly improve the transmission and communication speeds, and significantly reduce the latency.

[0027] Based on the above scheme, it can be seen that the embodiments of the present invention achieve the following functions through a single optical cable composed of multimode and single-mode optical fibers: using the multimode optical fiber as the energy transmission medium to transmit the energy emitted by the laser to the monitoring terminal, thus powering the monitoring terminal, while simultaneously using single-mode optical fiber wired transmission to achieve bidirectional data transmission. This optical, thermal, and electrical energy transmission system can overcome the limitations of existing power supply and communication methods through a single composite optical cable, and simultaneously solve the problems of cable transportation and maintenance difficulties, low data transmission rates, safety risks, and low power supply efficiency that often occur during energy supply and information transmission.

[0028] In some other embodiments, the system further includes a wavelength division multiplexer, which couples multiple near-infrared laser signals and transmits the coupled laser signals through the multimode optical fiber.

[0029] In this embodiment, in order to improve the energy transmission efficiency of the optical fiber, a wavelength division multiplexer (WDM) can be used to couple lasers of multiple wavelengths into the same multimode optical fiber. Specifically, lasers in multiple near-infrared bands such as 1510nm, 1520nm, 1530nm, 1540nm and 1550nm can be combined for transmission, and each laser independently carries energy. This can not only significantly increase the transmission capacity of the optical fiber, but also avoid nonlinear effects (such as stimulated Brillouin scattering) caused by excessive power of a single wavelength. For multimode optical fiber, WDM can be combined with high-power lasers to achieve high energy density transmission within a short distance, which can be applied to industrial laser energy distribution.

[0030] During the transmission of laser light in optical fibers, the optical fiber loss varies in different windows, and as the laser wavelength increases, the laser loss within the optical fiber will also be greatly reduced. Lasers of different wavelengths also experience different losses when transmitted within optical fibers. Generally speaking, the optical fiber transmission loss of 850nm lasers is around 3dB / km, which means that for every 1km of optical fiber transmission, half of the light energy in the 850nm band is lost, which is a significant loss in long-distance transmission. The optical fiber transmission loss of 1300nm lasers is around 1dB / km, while the loss of 1310nm lasers is around 0.4dB / km, and the loss of 1550nm lasers is only 0.2dB / km, which means that only one twentieth of the light energy is lost for every 1km of optical fiber transmission. Therefore, using a 1550nm laser as the energy beam will greatly reduce the loss of optical fiber transmission.

[0031] In some embodiments, the photothermal composite cell includes a photovoltaic cell and a thermoelectric module integrated on the photovoltaic cell, wherein the photovoltaic cell includes a multi-junction narrow-bandwidth photovoltaic cell, and the photovoltaic cell converts multiple received laser signals into electrical energy; the thermoelectric module uses thermoelectric-based semiconductor materials and combines micro-heat pipe technology to optimize heat conduction to collect waste heat generated during the energy conversion process, and uses the Seebeck effect to convert the collected waste heat into electrical energy.

[0032] In terms of energy harvesting, traditional silicon-based solar cells have a low response efficiency to near-infrared wavelengths such as 1550nm. To address this issue, the photovoltaic cells in a photothermal hybrid cell utilize multi-junction narrow-bandwidth photovoltaic cells for light energy collection and photoelectric conversion. This material exhibits broadband response characteristics, enabling efficient collection and conversion of light energy in the 1500-1550nm band. Furthermore, traditional photovoltaic cells generate a significant amount of waste heat during the energy conversion process, with approximately 20-30% of the incident light energy dissipated as heat. To fully utilize this waste heat, a thermoelectric (TE) module is integrated beneath the photovoltaic cell, allowing the TE module to be bonded to the photovoltaic cell. This thermoelectric module utilizes high-performance thermoelectric-based semiconductor materials (such as BiTe-based semiconductors) and incorporates micro-heat pipe technology to optimize heat conduction. This module then utilizes the Seebeck effect to convert the collected waste heat into electrical energy, ensuring efficient heat recovery and significantly improving overall energy conversion efficiency. This hybrid energy harvesting method achieves multi-stage energy utilization: photoelectricity, electricity, and heat.

[0033] In this invention, the fusion of photovoltaic and thermoelectric technologies creates a next-generation hybrid power generation system. Its core breakthrough lies in the three-dimensional capture and conversion of solar energy. While traditional photovoltaic cells utilize only the visible light spectrum, the design of a solar-thermal hybrid cell efficiently recovers infrared radiation and waste heat generated by the underlying thermoelectric module, which efficiently recycles infrared radiation that the photovoltaic cell cannot absorb. This allows for precise channeling of over 90% of the transmitted infrared light to the thermoelectric module, driving the Seebeck effect to generate additional electricity, thus surpassing the limits of single technology in terms of full-spectrum energy utilization. This coupling enables sophisticated physical integration: the thermoelectric unit is directly bonded to the photovoltaic backsheet, eliminating the need for an external heat source to continuously generate electricity by utilizing the temperature rise during photovoltaic operation (typically exceeding 50°C), while effectively mitigating the problem of cell overheating and degradation. Even more innovative is the dynamic synergy between the thermoelectric unit and the photovoltaic cell: when rising ambient temperature causes photovoltaic efficiency to decrease, the thermoelectric output significantly increases as the temperature difference widens, creating a natural power compensation mechanism. The bonded interface material between the thermoelectric unit and the photovoltaic cell enables ultra-low-loss transfer of heat and current, and the thermoelectric output can be used to inversely regulate the heat dissipation intensity. The above technology not only increases the power generation per unit area by more than 20%, but also demonstrates excellent stability in harsh environments such as high temperature and scattered light. It can enable the new fiber optic energy supply system formed by the photothermal composite battery to have the advantages of high energy density and strong environmental adaptability.

[0034] In some embodiments, the sensor monitoring integrated module further includes a first optical fiber transceiver, which receives an optical signal of monitoring control information from a user end transmitted by the single-mode optical fiber and converts the optical signal into an electrical signal, and transmits the electrical signal to the sensor monitor, so that the sensor monitor performs corresponding actions according to the monitoring control information to collect monitoring information; The first optical fiber transceiver also receives an electrical signal of monitoring information from the sensor monitor and converts the electrical signal into an optical signal, and transmits the optical signal to the user end through the single-mode optical fiber to provide the user end with the monitoring information.

[0035] In some embodiments, the system further includes a second fiber optic transceiver, which receives an electrical signal of monitoring control information from a user end and converts the electrical signal into an optical signal, and transmits the optical signal to the sensor monitor through the single-mode optical fiber, so that the sensor monitor performs corresponding actions according to the monitoring control information to collect monitoring information; the second fiber optic transceiver also receives an optical signal of monitoring information from the sensor monitor transmitted by the single-mode optical fiber and converts the optical signal into an electrical signal, and transmits the electrical signal to the user end to provide the user end with the monitoring information.

[0036] Specifically, the optical signal used to carry and transmit monitoring information or monitoring control information includes an optical signal in the 1310nm band. The first and second optical transceivers are connected via an SC-type optical fiber interface and a single-mode optical fiber. By installing two optical transceivers at both ends of the composite optical cable, information from the user end and the monitoring end can be better transmitted over long or short distances within the optical fiber, thereby enabling bidirectional communication between the two.

[0037] In some embodiments, the monitoring control information includes the type of monitoring information required to be collected and control instructions for the monitoring information, the monitoring information includes an image of the monitoring target, equipment operating parameters, and environmental parameters, the environmental parameters including temperature and humidity; In the case where the monitoring information includes an image containing a monitoring target, the sensor monitor collects the monitoring information based on the monitoring control information, specifically including the following: The sensor monitor performs semantic parsing based on the control instruction requiring the collection of image type monitoring information and the monitoring target, and obtains the parsed control instruction, wherein the parsed control instruction includes the monitoring target and the image type; Based on the parsed control instructions, an initial image containing the monitored target is collected, and a target detection model is used to perform target detection on the initial image to obtain a predicted position of the monitored target; The semantic segmentation model is used to segment the detected monitoring target based on the predicted position to obtain the predicted contour information. The occlusion ratio of the monitoring target is determined based on the similarity and pixel coverage ratio between the predicted contour information and the preset complete contour information of the monitoring target. If the occlusion ratio is greater than a first threshold, adjusting the direction of the image acquisition module in the sensor monitor until the occlusion ratio is less than the first threshold, outputting a corresponding image and using the image as a target image; The target image is encoded into a digital signal, so as to transmit the digital signal to a user end through the single-mode optical fiber.

[0038] In this embodiment, the sensor monitor includes multiple types of sensors, image acquisition modules and control modules. The multiple types of sensors are used to collect equipment operating parameters and environmental parameters such as temperature and humidity. The image acquisition module is used to capture images containing the monitored target. The control module controls the multiple types of sensors and image acquisition modules through the above scheme to collect corresponding data. Among them, for image data, the above scheme can solve the problem that it is difficult to remotely obtain effective image information when the monitored target at one end of the optical cable is blocked. The user end can control the monitoring end to collect the data to be obtained and transmit it back to the user end, so that the user end can obtain the equipment operation status and whether the equipment has a risk of failure based on the collected data, realize remote control, and then eliminate the risk of failure in advance and perform timely maintenance. In addition, encoding the collected monitoring image into a digital signal can further improve the security and reliability of the transmission of monitoring information in the optical cable.

[0039] In some embodiments, the monitoring information carries the user's address information, and is transmitted to the user with the corresponding address information via the single-mode optical fiber. When there are multiple users at the user end, the monitoring data collected can be accurately transmitted back to the corresponding users.

[0040] In some embodiments, the energy management unit outputs an amount of electrical energy not less than 14.4 to 19.2 W. In other words, the energy transmission link in the solar-thermal-electrical energy-communication system can output an amount of electrical energy not less than 14.4 to 19.2 W.

[0041] In some embodiments, the multimode optical fiber includes a 62.5 / 125 μm multimode optical fiber, and the single-mode optical fiber includes a 9 / 125 μm single-mode optical fiber.

[0042] The photothermal-electrical energy and communication co-transmission system provided in an embodiment of the present invention has two links: one is an energy transmission link, and the other is a bidirectional communication link. The energy transmission process of the energy transmission link includes: multiple high-power lasers emit laser signals in the 1500-1550nm band. These optical signals are input into the 62.5 / 125μm multimode optical fiber in the composite optical cable for transmission. The composite optical cable can be designed to be 500m, for example, and its length can be adjusted according to the actual application scenario. The other end of the multimode optical fiber serves as the light outlet, and the emitted light will hit the photothermal composite cell, i.e., the photothermal-electrical conversion unit. The photothermal composite cell converts the received light energy into electrical energy and the generated heat energy into electrical energy, and stores all the electrical energy in the energy management unit. The energy management unit can efficiently output the stored electrical energy and efficiently power loads such as monitors.

[0043] The bidirectional communication link is divided into an uplink and a downlink, sharing the same link. The uplink information transmission process includes: the sensor monitor encodes the collected monitoring information into a digital signal and forwards it to the first fiber optic transceiver. The first fiber optic transceiver converts the received monitoring information's electrical signal into a 1310nm optical signal, which is then transmitted to a 9 / 125μm single-mode optical fiber via an SC-type optical fiber interface. The optical signal carrying the monitoring information is then transmitted over a long or short distance to a second fiber optic transceiver at the user end. The second fiber optic transceiver converts the received optical signal into an electrical signal. The router then transmits the LAN electrical signal message containing the user's address information over the public network, ultimately finding a matching client, such as a mobile phone or computer. The client then receives real-time monitoring information from the sensor monitor. This allows the user end to access and obtain monitoring information anytime, anywhere, as long as there is a local area network. The information transmission process of the downlink communication link includes: the client sends corresponding monitoring control information and control instructions to control the sensor monitor to perform corresponding actions to obtain data for different monitoring requirements. Such control signals are sent through terminals such as mobile phones and computers. After finding the corresponding router, the router transmits the control electrical signal message to the second fiber optic transceiver. The second fiber optic transceiver converts the received electrical signal of the monitoring control information into an optical signal, and then transmits the control information to the monitor in the opposite direction of the uplink. In other words, the control information is first transmitted through the same 9 / 125μm single-mode optical fiber as the uplink and transmitted to the first fiber optic transceiver. The first fiber optic transceiver converts the received optical signal carrying the control information into an electrical signal, and then transmits the electrical signal to the monitor. In this way, the monitor receives the control information from the user's client and performs corresponding collection actions based on the control information, thereby monitoring and collecting monitoring data for different requirements.

[0044] On the one hand, the above-mentioned solar-thermal-electricity-based energy and communication transmission system can optimize some scenarios and systems that use cable power supply. It can play a great role in systems with longer distances and in systems with special deployment locations, achieving high-density energy supply, improving supply efficiency, reducing weight and volume, facilitating transportation, deployment, and maintenance, and reducing maintenance costs. On the other hand, the use of optical fiber communication solves the fading loss and noise effects of long-distance wireless communication, keeps the information transmission bit error rate at a low level, and improves communication reliability. At the same time, information that needs to be transmitted confidentially is less likely to be intercepted, improving communication security, and ensuring the overall communication and transmission rate. Compared with the method of transmitting video signals through wireless communication, the transmission of video signals through optical fiber communication in this system is more secure, has a higher transmission rate, lower system latency, and is more resistant to electromagnetic interference.

[0045] It should be understood by those skilled in the art that the various exemplary components, systems and methods described in conjunction with the embodiments disclosed herein can be implemented in hardware, software or a combination of the two. Whether it is specifically performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present invention are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link via a data signal carried in a carrier.

[0046] It should be understood that the present invention is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted. In the above embodiments, several specific steps are described and illustrated as examples. However, the method of the present invention is not limited to the specific steps described and illustrated. Those skilled in the art may make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present invention.

[0047] In the present invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or replace features of other embodiments.

[0048] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations to the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A solar-thermal-electric energy and signal transmission system, characterized in that: The system includes: multiple lasers, composite optical cables and a sensor monitoring integrated module, wherein the composite optical cables include multimode optical fibers and single-mode optical fibers, and the sensor monitoring integrated module includes a photothermal composite battery, an energy management unit and a sensor monitor connected in sequence; The multiple lasers emit multiple laser signals in the near-infrared band, and transmit the multiple laser signals to the photothermal composite battery through the multimode optical fiber; The photothermal composite cell converts the received multiple laser signals into electrical energy, collects waste heat generated during the energy conversion process and converts the collected waste heat into electrical energy, stores all the electrical energy output by the photothermal composite cell through the energy management unit, and supplies power to the sensor monitor; The monitoring control information sent by the user end is transmitted to the sensor monitor via the single-mode optical fiber. The sensor monitor collects monitoring information based on the monitoring control information and transmits the monitoring information to the user end via the single-mode optical fiber to realize two-way transmission of information between the user end and the sensor monitor.

2. The system according to claim 1, wherein: The photothermal composite cell includes a photovoltaic cell and a thermoelectric module integrated on the photovoltaic cell, wherein the photovoltaic cell includes a multi-junction narrow-bandwidth photovoltaic cell, which converts multiple received laser signals into electrical energy; the thermoelectric module uses thermoelectric-based semiconductor materials and combines micro-heat pipe technology to optimize heat conduction to collect waste heat generated during the energy conversion process, and uses the Seebeck effect to convert the collected waste heat into electrical energy.

3. The system according to claim 1, wherein: The system further comprises a wavelength division multiplexer, which couples laser signals of a plurality of near-infrared bands and transmits the coupled laser signals through the multimode optical fiber.

4. The system according to claim 1, wherein: The sensor monitoring integrated module further includes a first optical fiber transceiver, which receives an optical signal of monitoring control information from a user end transmitted by the single-mode optical fiber and converts the optical signal into an electrical signal, and transmits the electrical signal to the sensor monitor so that the sensor monitor performs corresponding actions according to the monitoring control information to collect monitoring information; The first optical fiber transceiver also receives an electrical signal of monitoring information from the sensor monitor and converts the electrical signal into an optical signal, and transmits the optical signal to the user end through the single-mode optical fiber to provide the user end with the monitoring information.

5. The system according to claim 4, characterized in that The system further includes a second optical fiber transceiver, which receives an electrical signal of monitoring control information from a user end and converts the electrical signal into an optical signal, and transmits the optical signal to the sensor monitor through the single-mode optical fiber, so that the sensor monitor performs corresponding actions according to the monitoring control information to collect monitoring information; The second optical fiber transceiver also receives the optical signal of the monitoring information from the sensor monitor transmitted by the single-mode optical fiber and converts the optical signal into an electrical signal, and transmits the electrical signal to the user end to provide the user end with the monitoring information.

6. The system according to claim 1, wherein: The monitoring control information includes the type of monitoring information required to be collected and the control instructions of the monitoring information. The monitoring information includes an image of the monitoring target, equipment operating parameters and environmental parameters, and the environmental parameters include temperature and humidity; In a case where the monitoring information includes an image containing a monitoring target, the sensor monitor collects the monitoring information based on the monitoring control information, including: The sensor monitor performs semantic parsing based on the control instruction requiring the collection of image type monitoring information and the monitoring target, and obtains the parsed control instruction, wherein the parsed control instruction includes the monitoring target and the image type; Based on the parsed control instructions, an initial image containing the monitored target is collected, and a target detection model is used to perform target detection on the initial image to obtain a predicted position of the monitored target; The semantic segmentation model is used to segment the detected monitoring target based on the predicted position to obtain the predicted contour information. The occlusion ratio of the monitoring target is determined based on the similarity and pixel coverage ratio between the predicted contour information and the preset complete contour information of the monitoring target. If the occlusion ratio is greater than a first threshold, adjusting the direction of the image acquisition module in the sensor monitor until the occlusion ratio is less than the first threshold, outputting a corresponding image and using the image as a target image; The target image is encoded into a digital signal, so as to transmit the digital signal to a user end through the single-mode optical fiber.

7. The system according to any one of claims 1 to 6, characterized in that The monitoring information carries the user's address information, and the monitoring information is transmitted to the user corresponding to the address information through the single-mode optical fiber.

8. The system according to claim 1, wherein: The near-infrared band ranges from 1500 to 1550 nm, and the optical signal of the monitoring information or the monitoring control information includes an optical signal in the 1310 nm band.

9. The system according to claim 1, wherein: The electrical energy output by the energy management unit is not less than 14.4 to 19.2W.

10. The system according to claim 1, wherein: One end of the multimode optical fiber is connected to the pigtail of each laser by optical fiber fusion splicing; the multimode optical fiber includes 62.5 / 125μm multimode optical fiber, and the single-mode optical fiber includes 9 / 125μm single-mode optical fiber.

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