Optical fiber-based integrated data transmission and power supply method and system

Abstract

The present invention relates to an optical fiber-based integrated data transmission and power supply method, comprising: data processing and encryption: preprocessing and encrypting a data signal to obtain an encrypted signal; alternating current-direct current conversion: converting an alternating current to a direct current; photoelectric conversion and wavelength division multiplexing: converting the encrypted signal and the direct current into an optical data signal and an optical power signal; reception and conversion: receiving the optical data signal and the optical power signal; and decryption and processing: converting the optical power signal into the direct current. According to the present invention, the data signal is preprocessed and encrypted into the encrypted signal, and at the same time, the alternating current is converted into the direct current, the encrypted signal and the direct current are respectively converted into the optical data signal and the optical power signal for transmission within an optical fiber, upon receipt of the optical data signal and the optical power signal, the optical data signal is decrypted and processed, the optical power signal is converted into the direct current, and finally, the data and the current are processed and distributed as needed, enabling simultaneous long-distance transmission of power and data.

Description

A method and system for integrating data transmission and power supply based on optical fiber Technical Field

[0001] The present invention relates to the field of integrated data transmission and power supply of optical fibers, and in particular to a method and system for integrated data transmission and power supply based on optical fibers. Background Art

[0002] In the field of network communications, particularly for achieving indoor broadband access, fiber-to-the-home (FTTH) and Power over Ethernet (PoE) are currently widely adopted technologies. These technologies offer effective solutions for data transmission and device powering, but they also present limitations and challenges. For example, while FTTH offers high-speed internet connections, it is expensive to install and requires an additional power supply. PoE technology allows power and data to be transmitted over Ethernet cables, simplifying the power supply of network devices. However, its transmission distance is limited, and the power supply requirement increases with the power of the device.

[0003] Traditional FTTH and FTTB solutions require extensive physical cabling and professional installation, increasing the cost and complexity of network deployment. For network devices requiring power, such as wireless access points (APs), traditional solutions rely on power adapters or PoE technology. While the latter reduces the need for power cables, it is still limited to the transmission capacity and distance of Ethernet cables and may not be sufficient for high-power devices. Existing power supply and data transmission solutions require independent system maintenance, increasing operational costs and complexity, especially during troubleshooting and repair. Power and data cables can introduce electromagnetic interference (EMI), affecting network performance. PoE systems also pose risks of overvoltage and overheating when under heavy load or improperly configured.

[0004] In summary, both traditional FTTH and FTTB solutions and POE technology have significant limitations and cannot provide a suitable solution when facing the simultaneous transmission of power and data over long distances.

[0005] Summary of the Invention

[0006] In order to meet the needs of applications with long distances and the need to transmit both power and data, the present invention provides a method for integrated data transmission and power supply based on optical fiber. The method pre-processes the data signal and encrypts it into an encrypted signal, and converts the AC into DC. The encrypted signal and DC are then converted into data optical signals and power optical signals respectively for transmission within the optical fiber. After receiving the data optical signal and the power optical signal, the data optical signal is decrypted and processed, and the power optical signal is converted into DC. Finally, the data and current are processed and allocated according to the required requirements, thereby realizing the simultaneous transmission of power and data over long distances.

[0007] In a first aspect, the present invention provides an optical fiber-based integrated data transmission and power supply method, which adopts the following technical solutions:

[0008] A method for integrating data transmission and power supply based on optical fiber, comprising:

[0009] Data processing and encryption: receiving data signals and preprocessing the data signals to obtain preprocessed signals, and then encrypting the preprocessed signals to obtain encrypted signals;

[0010] AC-DC conversion: takes AC power and converts it to DC;

[0011] Optoelectronic conversion and wavelength division multiplexing:

[0012] Optoelectronic conversion: converts encrypted signals and DC power into data optical signals and power optical signals;

[0013] Wavelength Division Multiplexing:

[0014] Multiplexing data optical signals and power optical signals at different wavelengths onto a single optical fiber to achieve simultaneous transmission of data optical signals and power optical signals;

[0015] Receiving and converting:

[0016] Receives data optical signals and power optical signals, decrypts and processes the data optical signals, and converts the power optical signals into direct current.

[0017] Preferably, the pretreatment comprises:

[0018] De-noising the data signal using a digital signal processor to obtain a de-noised data signal;

[0019] Decoding the denoised data signal to obtain a decoded data signal;

[0020] Performing error detection and correction on the decoded data signal to improve the accuracy of the decoded data signal and obtain a preprocessed signal;

[0021] Buffer the preprocessed signal.

[0022] Preferably, the pre-processed signal is encrypted using the Advanced Encryption Standard.

[0023] Preferably, the alternating current is converted into low-voltage direct current suitable for optical fiber transmission.

[0024] Preferably, the AC-DC conversion further includes dynamically adjusting the power output according to the real-time demands of the system load and the terminal equipment.

[0025] Preferably, an optoelectronic converter is used to multiplex the data optical signal and the power optical signal at different wavelengths onto a single optical fiber.

[0026] Preferably, a wave splitter is used to separate the data optical signal from the power optical signal.

[0027] In a second aspect, the present invention provides an optical fiber-based integrated data transmission and power supply system, which adopts the following technical solutions:

[0028] An optical fiber-based integrated data transmission and power supply system comprising:

[0029] Data processing and encryption module: used to receive data signals and pre-process and encrypt the data signals to obtain encrypted signals;

[0030] A power management module, used to obtain AC power and convert it into low-voltage DC power suitable for optical fiber transmission;

[0031] Optoelectronic conversion and wavelength division multiplexing module, used to multiplex data optical signals and power optical signals at different wavelengths onto a single optical fiber to achieve simultaneous transmission of data optical signals and power optical signals;

[0032] Optical fiber transmission lines are used to provide transmission carriers for data optical signals and power optical signals;

[0033] The optoelectronic separation and conversion module is used to receive data optical signals and power optical signals, decrypt and process the data optical signals, and convert the power optical signals into direct current.

[0034] Preferably, it also includes:

[0035] Data routing and distribution module, used to provide routers and wireless access points, and to route and distribute decrypted data signals;

[0036] The power conversion and distribution module is used to convert direct current into the required alternating current and dynamically adjust and distribute power according to the needs of terminal equipment.

[0037] In summary, the present invention has the following beneficial technical effects:

[0038] 1. This application pre-processes the data signal and encrypts it into an encrypted signal, converts the AC into DC, and then converts the encrypted signal and DC into a data optical signal and an electric power optical signal respectively for transmission in the optical fiber. After receiving the data optical signal and the electric power optical signal, the data optical signal is decrypted and processed, and the electric power optical signal is converted into DC. Finally, the data and current are processed and allocated according to the required requirements, thereby realizing the simultaneous transmission of power and data over long distances.

[0039] 2. This application not only solves the problem of long-distance data and power transmission, but also reduces electromagnetic interference, ensures the high quality of data transmission and the long-term stability of the system, and also realizes the efficient separation and precise routing of data and power, solving the problem of low efficiency of data transmission and power distribution in traditional systems.

[0040] 3. By integrating data transmission with fiber-optic power delivery, this invention significantly reduces the need for additional power and data cables, thereby reducing the number and complexity of physical cabling. This integrated setup not only significantly reduces network deployment and maintenance costs, but also offers significant economic benefits in large buildings or new developments where extensive cabling is required.

[0041] 4. This application ensures data transmission security and power supply stability by employing advanced data encryption and intelligent power management technologies. Advanced Encryption Standard (AES-256) and digital signature technology effectively prevent unauthorized access or tampering of data, while the overload and short-circuit protection features of the intelligent power management system ensure the reliability of the power supply system.

[0042] 5. This application avoids energy waste in traditional power supply methods by dynamically adjusting power output based on the real-time needs of terminal devices, thereby improving overall energy efficiency. This dynamic allocation mechanism helps reduce unnecessary energy consumption and is in line with current green environmental trends.

[0043] 6. By utilizing photoelectric conversion and wavelength division multiplexing technologies, this invention enables efficient transmission of data and power within the same optical fiber, addressing transmission efficiency and range issues previously hindered by electromagnetic interference (EMI) and physical distance limitations. This is crucial for expanding network coverage, particularly in remote or difficult-to-reach areas.

[0044] 7. This application not only reduces dependence on traditional power sources and materials, but also helps reduce environmental impact by optimizing energy use and reducing physical wiring. It also reduces energy consumption and waste generation, which is in line with the concept of sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] FIG1 is a flow chart of a method according to an embodiment of the present invention.

[0046] FIG2 is a flow chart of the system in an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The present invention will be further described in detail below with reference to the accompanying drawings.

[0048] The embodiment of the present invention discloses an optical fiber-based integrated data transmission and power supply method.

[0049] 1 , the optical fiber-based integrated data transmission and power supply method includes the following steps:

[0050] S1. Data processing and encryption, including:

[0051] S11, data signal reception;

[0052] The main gateway captures the data signal from the outside through a highly sensitive receiver;

[0053] S12, data signal processing;

[0054] The digital signal processor (DSP) is used to preprocess the data signal to obtain a preprocessed signal. Specifically, the preprocessing process includes denoising, decoding, and misalignment detection and correction;

[0055] A digital signal processor is used to denoise the data signal, and a filter is used to remove background noise to obtain a denoised data signal;

[0056] Then the denoised data signal is decoded, and the received analog signal is converted into a digital signal to obtain a decoded data signal;

[0057] Finally, error detection and correction are performed on the decoded data signal, thereby improving the accuracy of the decoded data signal and obtaining a preprocessed signal;

[0058] Data cache: cache the pre-processed signal.

[0059] S13, preprocessing signal encryption;

[0060] The pre-processed signal is encrypted using the Advanced Encryption Standard (AES-256), thus increasing the security of the transmitted encrypted data.

[0061] To improve the integrity and authentication of data transmission, digital signature and public key infrastructure (PKI) technologies are implemented to enhance the reliability and non-repudiation of data origin.

[0062] S2, AC-DC conversion;

[0063] S21. Obtain alternating current (AC), and then use an AC-DC converter to convert the externally supplied AC into low-voltage direct current (DC) suitable for optical fiber transmission. During the conversion process, a voltage regulator is used to ensure the stability of the output voltage.

[0064] S22, intelligent power adjustment;

[0065] Introduce an intelligent power management system to dynamically adjust power output according to system load and real-time demand of terminal devices, and optimize energy utilization efficiency.

[0066] S3, optoelectronic conversion and wavelength division multiplexing;

[0067] S31, photoelectric conversion;

[0068] Using a photoelectric converter to convert the encrypted signal and the low-voltage DC power adjusted in step S22 into two optical signals of different wavelengths;

[0069] Specifically, for the encrypted signal, a directly modulated laser is used to generate a data optical signal of a corresponding wavelength;

[0070] For direct current, a laser with another wavelength is used to convert the direct current into an electrical optical signal with a wavelength different from that of the data optical signal.

[0071] S32, wavelength division multiplexing;

[0072] The wavelength division multiplexer (WDM) is used to multiplex the data optical signal and the power optical signal at different wavelengths onto a single optical fiber, thereby achieving simultaneous transmission of the data optical signal and the power optical signal on a single optical fiber.

[0073] S4, receiving and converting;

[0074] Receiving and separating;

[0075] The use of a specific splitter ensures that the data signal light and the power signal light can be effectively separated at the receiving end, without worrying about interference between the signals.

[0076] The gateway receives optical data and power signals, then uses the gateway's optoelectronic splitter to separate the mixed optical signal into a data signal and a power signal based on their wavelengths. A specific wavelength splitter ensures effective separation of the data and power signals at the receiving end, eliminating the risk of interference between the signals.

[0077] Photoelectric conversion;

[0078] The separated data optical signal and power optical signal are converted back into encrypted signals and direct current through a photoelectric converter.

[0079] S5. Data distribution and power supply:

[0080] S51, data routing distribution;

[0081] The router decrypts and post-processes the encrypted signal, including data format conversion, and can accurately distribute the data signal to the target end-user device through the local area network (LAN) or wireless network (WLAN) interface based on the network protocol and routing table.

[0082] S52, power allocation;

[0083] The voltage and current of the received DC power are adjusted, or the DC power is converted into AC power to meet the power requirements of the terminal equipment.

[0084] An intelligent power management system is used to dynamically monitor and adjust power supply, allocating power according to the real-time needs and priorities of terminal devices, while achieving efficient energy utilization.

[0085] 2 , an embodiment of the present application further discloses an optical fiber-based integrated data transmission and power supply system.

[0086] The optical fiber-based integrated data transmission and power supply system includes an FTTR master gateway, an optical fiber transmission line, and an FTTR slave gateway.

[0087] The FTTR main gateway is responsible for preprocessing, encryption, caching, and conversion of data signals into optical data signals, as well as conversion of AC power into DC power and DC power into optical power signals.

[0088] Optical fiber transmission lines are responsible for the transmission of data optical signals and power optical signals.

[0089] The FTTR gateway is responsible for converting and distributing data optical signals into encrypted signals, converting power optical signals into direct current, adjusting the voltage and current of direct current, and allocating power.

[0090] The FTTR main gateway includes the following modules:

[0091] Data processing and encryption module: used to receive data signals and pre-process the data signals to obtain pre-processed signals. The pre-processing includes denoising, decoding, error detection and correction, and encryption. The pre-processed signals are then encrypted to obtain encrypted signals.

[0092] A cache module, used for caching encrypted signals;

[0093] A power management module, used to obtain AC power and convert it into low-voltage DC power suitable for optical fiber transmission;

[0094] The optoelectronic conversion and wavelength division multiplexing module is used to multiplex data optical signals and power optical signals at different wavelengths onto a single optical fiber to achieve simultaneous transmission of data optical signals and power optical signals.

[0095] Optical fiber transmission lines use specially designed optical fibers: they are optical fibers with multi-wavelength transmission capabilities. Their internal structure supports high-efficiency data signal and power signal transmission, ensuring signal quality and transmission efficiency. Optical fiber transmission lines are used to provide transmission carriers for data optical signals and power optical signals.

[0096] The FTTR slave gateway includes the following modules:

[0097] The optoelectronic separation and conversion module is used to receive data optical signals and power optical signals, decrypt and process the data optical signals, and convert the power optical signals into direct current.

[0098] Data routing and distribution module, used to provide routers and wireless access points, and to route and distribute decrypted data signals;

[0099] The power conversion and distribution module is used to convert direct current into the required alternating current and dynamically adjust and distribute power according to the needs of terminal equipment.

[0100] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for integrating data transmission and power supply based on optical fiber, characterized in that: include: Data processing and encryption: receiving data signals and preprocessing the data signals to obtain preprocessed signals, and then encrypting the preprocessed signals to obtain encrypted signals; AC-DC conversion: takes AC power and converts it to DC; Optoelectronic conversion and wavelength division multiplexing: Optoelectronic conversion: converts encrypted signals and DC power into data optical signals and power optical signals; Wavelength Division Multiplexing: Multiplexing data optical signals and power optical signals at different wavelengths onto a single optical fiber to achieve simultaneous transmission of data optical signals and power optical signals; Receiving and converting: Receives data optical signals and power optical signals, decrypts and processes the data optical signals, and converts the power optical signals into direct current.

2. The optical fiber-based integrated data transmission and power supply method according to claim 1, characterized in that: Preprocessing includes: De-noising the data signal using a digital signal processor to obtain a de-noised data signal; Decoding the denoised data signal to obtain a decoded data signal; Performing error detection and correction on the decoded data signal to improve the accuracy of the decoded data signal and obtain a preprocessed signal; Buffer the preprocessed signal.

3. The optical fiber-based integrated data transmission and power supply method according to claim 1, characterized in that: The pre-processed signal is encrypted using the Advanced Encryption Standard.

4. The optical fiber-based integrated data transmission and power supply method according to claim 1, characterized in that: Converts AC power into low-voltage DC power suitable for optical fiber transmission.

5. The optical fiber-based integrated data transmission and power supply method according to claim 1, characterized in that: AC-DC conversion also involves dynamically adjusting power output based on the real-time demands of system loads and end devices.

6. The optical fiber-based integrated data transmission and power supply method according to claim 1, characterized in that: Optoelectronic converters are used to multiplex data optical signals and power optical signals at different wavelengths onto a single optical fiber.

7. The optical fiber-based integrated data transmission and power supply method according to claim 1, characterized in that: A wave splitter is used to separate the data optical signal from the power optical signal.

8. An optical fiber-based integrated data transmission and power supply system, characterized in that: include: Data processing and encryption module: used to receive data signals and pre-process and encrypt the data signals to obtain encrypted signals; A power management module, used to obtain AC power and convert it into low-voltage DC power suitable for optical fiber transmission; Optoelectronic conversion and wavelength division multiplexing module, used to multiplex data optical signals and power optical signals at different wavelengths onto a single optical fiber to achieve simultaneous transmission of data optical signals and power optical signals; Optical fiber transmission lines are used to provide transmission carriers for data optical signals and power optical signals; The optoelectronic separation and conversion module is used to receive data optical signals and power optical signals, decrypt and process the data optical signals, and convert the power optical signals into direct current.

9. The optical fiber-based integrated data transmission and power supply system according to claim 8, characterized in that: Also includes: Data routing and distribution module, used to provide routers and wireless access points, and to route and distribute decrypted data signals; The power conversion and distribution module is used to convert direct current into the required alternating current and dynamically adjust and distribute power according to the needs of terminal equipment.

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